From 35c3553870e35b2e7cfcc599645791acda6afcef Mon Sep 17 00:00:00 2001 From: Lunny Xiao Date: Fri, 14 Jan 2022 23:03:31 +0800 Subject: [PATCH] Support webauthn (#17957) Migrate from U2F to Webauthn Co-authored-by: Andrew Thornton Co-authored-by: 6543 <6543@obermui.de> Co-authored-by: wxiaoguang --- .eslintrc | 1 - cmd/serv.go | 5 +- custom/conf/app.example.ini | 5 +- .../doc/advanced/config-cheat-sheet.en-us.md | 5 +- go.mod | 7 +- go.sum | 20 +- models/auth/main_test.go | 2 +- models/auth/u2f.go | 154 - models/auth/u2f_test.go | 100 - models/auth/webauthn.go | 222 + models/auth/webauthn_test.go | 69 + models/fixtures/u2f_registration.yml | 7 - models/fixtures/webauthn_credential.yml | 8 + models/migrations/migrations.go | 2 + models/migrations/v207.go | 91 + modules/auth/webauthn/webauthn.go | 78 + modules/auth/webauthn/webauthn_test.go | 26 + modules/generate/generate.go | 2 +- modules/setting/setting.go | 11 +- options/locale/locale_en-US.ini | 40 +- package-lock.json | 11 + package.json | 1 + public/vendor/plugins/u2f/index.js | 1 - routers/web/auth/auth.go | 14 +- routers/web/auth/linkaccount.go | 6 +- routers/web/auth/oauth.go | 20 +- routers/web/auth/oauth_test.go | 2 +- routers/web/auth/u2f.go | 136 - routers/web/auth/webauthn.go | 169 + routers/web/user/setting/security/security.go | 5 +- routers/web/user/setting/security/u2f.go | 111 - routers/web/user/setting/security/webauthn.go | 119 + routers/web/web.go | 21 +- services/auth/auth.go | 5 +- services/auth/source/oauth2/jwtsigningkey.go | 2 +- services/auth/source/oauth2/token.go | 4 +- services/forms/user_form.go | 12 +- services/lfs/server.go | 3 +- templates/base/footer.tmpl | 3 - templates/user/auth/u2f.tmpl | 24 - templates/user/auth/u2f_error.tmpl | 32 - templates/user/auth/webauthn.tmpl | 22 + templates/user/auth/webauthn_error.tmpl | 22 + .../user/settings/security/security.tmpl | 2 +- .../security/{u2f.tmpl => webauthn.tmpl} | 23 +- vendor/github.com/cloudflare/cfssl/LICENSE | 24 + .../cloudflare/cfssl/crypto/pkcs7/pkcs7.go | 188 + .../github.com/cloudflare/cfssl/errors/doc.go | 46 + .../cloudflare/cfssl/errors/error.go | 438 ++ .../cloudflare/cfssl/errors/http.go | 47 + .../cfssl/helpers/derhelpers/derhelpers.go | 48 + .../cfssl/helpers/derhelpers/ed25519.go | 133 + .../cloudflare/cfssl/helpers/helpers.go | 590 +++ vendor/github.com/cloudflare/cfssl/log/log.go | 162 + .../cloudflare/cfssl/revoke/revoke.go | 336 ++ .../github.com/duo-labs/webauthn/LICENSE.txt | 26 + .../duo-labs/webauthn/metadata/metadata.go | 617 +++ .../duo-labs/webauthn/protocol/assertion.go | 155 + .../duo-labs/webauthn/protocol/attestation.go | 156 + .../protocol/attestation_androidkey.go | 227 + .../webauthn/protocol/attestation_apple.go | 104 + .../webauthn/protocol/attestation_packed.go | 278 ++ .../protocol/attestation_safetynet.go | 143 + .../webauthn/protocol/attestation_tpm.go | 349 ++ .../webauthn/protocol/attestation_u2f.go | 135 + .../webauthn/protocol/authenticator.go | 256 + .../duo-labs/webauthn/protocol/base64.go | 41 + .../duo-labs/webauthn/protocol/challenge.go | 27 + .../duo-labs/webauthn/protocol/client.go | 112 + .../duo-labs/webauthn/protocol/credential.go | 216 + .../duo-labs/webauthn/protocol/doc.go | 8 + .../duo-labs/webauthn/protocol/entities.go | 48 + .../duo-labs/webauthn/protocol/errors.go | 85 + .../duo-labs/webauthn/protocol/extensions.go | 8 + .../webauthn/protocol/googletpm/certinfo.go | 282 ++ .../webauthn/protocol/googletpm/googletpm.go | 152 + .../webauthn/protocol/googletpm/pubarea.go | 240 + .../duo-labs/webauthn/protocol/options.go | 136 + .../webauthn/protocol/signature_algorithms.go | 1 + .../webauthn/protocol/webauthncose/ed25519.go | 12 + .../protocol/webauthncose/ed25519_go112.go | 38 + .../protocol/webauthncose/webauthncose.go | 400 ++ .../webauthn/webauthn/authenticator.go | 51 + .../duo-labs/webauthn/webauthn/credential.go | 35 + .../duo-labs/webauthn/webauthn/doc.go | 3 + .../duo-labs/webauthn/webauthn/login.go | 188 + .../duo-labs/webauthn/webauthn/main.go | 71 + .../webauthn/webauthn/registration.go | 170 + .../duo-labs/webauthn/webauthn/session.go | 13 + .../duo-labs/webauthn/webauthn/user.go | 42 + .../github.com/fxamacker/cbor/v2/.gitignore | 12 + .../fxamacker/cbor/v2/.golangci.yml | 86 + .../fxamacker/cbor/v2/CBOR_BENCHMARKS.md | 264 + .../fxamacker/cbor/v2/CBOR_GOLANG.md | 32 + .../fxamacker/cbor/v2/CODE_OF_CONDUCT.md | 76 + .../fxamacker/cbor/v2/CONTRIBUTING.md | 47 + vendor/github.com/fxamacker/cbor/v2/LICENSE | 21 + vendor/github.com/fxamacker/cbor/v2/README.md | 938 ++++ vendor/github.com/fxamacker/cbor/v2/cache.go | 308 ++ vendor/github.com/fxamacker/cbor/v2/decode.go | 1642 +++++++ vendor/github.com/fxamacker/cbor/v2/doc.go | 109 + vendor/github.com/fxamacker/cbor/v2/encode.go | 1292 +++++ vendor/github.com/fxamacker/cbor/v2/go.mod | 5 + vendor/github.com/fxamacker/cbor/v2/go.sum | 2 + vendor/github.com/fxamacker/cbor/v2/stream.go | 196 + .../fxamacker/cbor/v2/structfields.go | 210 + vendor/github.com/fxamacker/cbor/v2/tag.go | 247 + vendor/github.com/fxamacker/cbor/v2/valid.go | 300 ++ .../golang-jwt/jwt/MIGRATION_GUIDE.md | 22 - vendor/github.com/golang-jwt/jwt/claims.go | 146 - .../golang-jwt/jwt/{ => v4}/.gitignore | 0 .../golang-jwt/jwt/{ => v4}/LICENSE | 0 .../golang-jwt/jwt/v4/MIGRATION_GUIDE.md | 22 + .../golang-jwt/jwt/{ => v4}/README.md | 15 +- .../jwt/{ => v4}/VERSION_HISTORY.md | 4 + vendor/github.com/golang-jwt/jwt/v4/claims.go | 273 ++ .../github.com/golang-jwt/jwt/{ => v4}/doc.go | 0 .../golang-jwt/jwt/{ => v4}/ecdsa.go | 6 +- .../golang-jwt/jwt/{ => v4}/ecdsa_utils.go | 8 +- .../golang-jwt/jwt/{ => v4}/ed25519.go | 22 +- .../golang-jwt/jwt/{ => v4}/ed25519_utils.go | 8 +- .../golang-jwt/jwt/{ => v4}/errors.go | 11 +- vendor/github.com/golang-jwt/jwt/v4/go.mod | 3 + vendor/github.com/golang-jwt/jwt/v4/go.sum | 0 .../golang-jwt/jwt/{ => v4}/hmac.go | 6 +- .../golang-jwt/jwt/{ => v4}/map_claims.go | 88 +- .../golang-jwt/jwt/{ => v4}/none.go | 2 +- .../golang-jwt/jwt/{ => v4}/parser.go | 42 +- .../golang-jwt/jwt/v4/parser_option.go | 29 + .../github.com/golang-jwt/jwt/{ => v4}/rsa.go | 6 +- .../golang-jwt/jwt/{ => v4}/rsa_pss.go | 6 +- .../golang-jwt/jwt/{ => v4}/rsa_utils.go | 16 +- .../golang-jwt/jwt/{ => v4}/signing_method.go | 17 +- .../golang-jwt/jwt/v4/staticcheck.conf | 1 + .../golang-jwt/jwt/{ => v4}/token.go | 55 +- vendor/github.com/golang-jwt/jwt/v4/types.go | 127 + .../certificate-transparency-go/.gitignore | 29 + .../certificate-transparency-go/.travis.yml | 87 + .../certificate-transparency-go/AUTHORS | 27 + .../certificate-transparency-go/CHANGELOG.md | 208 + .../CONTRIBUTING.md | 58 + .../certificate-transparency-go/CONTRIBUTORS | 57 + .../certificate-transparency-go/LICENSE | 202 + .../certificate-transparency-go/README.md | 144 + .../certificate-transparency-go/asn1/asn1.go | 1141 +++++ .../asn1/common.go | 177 + .../asn1/marshal.go | 689 +++ .../cloudbuild_tag.yaml | 10 + .../gometalinter.json | 28 + .../serialization.go | 347 ++ .../certificate-transparency-go/signatures.go | 112 + .../tls/signature.go | 152 + .../certificate-transparency-go/tls/tls.go | 711 +++ .../certificate-transparency-go/tls/types.go | 117 + .../certificate-transparency-go/types.go | 528 ++ .../x509/cert_pool.go | 143 + .../x509/curves.go | 37 + .../certificate-transparency-go/x509/error.go | 230 + .../x509/errors.go | 302 ++ .../certificate-transparency-go/x509/names.go | 164 + .../x509/nilref_nil_darwin.go | 26 + .../x509/nilref_zero_darwin.go | 26 + .../x509/pem_decrypt.go | 240 + .../certificate-transparency-go/x509/pkcs1.go | 155 + .../certificate-transparency-go/x509/pkcs8.go | 102 + .../x509/pkix/pkix.go | 288 ++ .../x509/ptr_sysptr_windows.go | 20 + .../x509/ptr_uint_windows.go | 17 + .../x509/revoked.go | 365 ++ .../certificate-transparency-go/x509/root.go | 22 + .../x509/root_bsd.go | 15 + .../x509/root_cgo_darwin.go | 252 + .../x509/root_darwin.go | 264 + .../x509/root_darwin_armx.go | 4313 +++++++++++++++++ .../x509/root_linux.go | 14 + .../x509/root_nacl.go | 8 + .../x509/root_nocgo_darwin.go | 11 + .../x509/root_plan9.go | 37 + .../x509/root_solaris.go | 12 + .../x509/root_unix.go | 88 + .../x509/root_windows.go | 266 + .../certificate-transparency-go/x509/rpki.go | 242 + .../certificate-transparency-go/x509/sec1.go | 113 + .../x509/test-dir.crt | 31 + .../x509/test-file.crt | 32 + .../x509/verify.go | 1090 +++++ .../certificate-transparency-go/x509/x509.go | 3054 ++++++++++++ vendor/github.com/markbates/goth/README.md | 2 + vendor/github.com/markbates/goth/go.mod | 2 +- vendor/github.com/markbates/goth/go.sum | 4 +- .../goth/providers/google/endpoint.go | 1 + .../goth/providers/google/endpoint_legacy.go | 1 + .../markbates/goth/providers/google/google.go | 21 +- .../goth/providers/google/session.go | 2 + vendor/github.com/satori/go.uuid/.travis.yml | 23 + vendor/github.com/satori/go.uuid/LICENSE | 20 + vendor/github.com/satori/go.uuid/README.md | 65 + 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++ vendor/golang.org/x/crypto/pkcs12/safebags.go | 57 + vendor/modules.txt | 38 +- web_src/js/features/user-auth-u2f.js | 125 - web_src/js/features/user-auth-webauthn.js | 197 + web_src/js/index.js | 6 +- web_src/less/_form.less | 4 + webpack.config.js | 1 + 224 files changed, 35036 insertions(+), 1075 deletions(-) delete mode 100644 models/auth/u2f.go delete mode 100644 models/auth/u2f_test.go create mode 100644 models/auth/webauthn.go create mode 100644 models/auth/webauthn_test.go delete mode 100644 models/fixtures/u2f_registration.yml create mode 100644 models/fixtures/webauthn_credential.yml create mode 100644 models/migrations/v207.go create mode 100644 modules/auth/webauthn/webauthn.go create mode 100644 modules/auth/webauthn/webauthn_test.go delete mode 100644 public/vendor/plugins/u2f/index.js delete mode 100644 routers/web/auth/u2f.go create mode 100644 routers/web/auth/webauthn.go delete mode 100644 routers/web/user/setting/security/u2f.go create mode 100644 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vendor/github.com/google/certificate-transparency-go/x509/errors.go create mode 100644 vendor/github.com/google/certificate-transparency-go/x509/names.go create mode 100644 vendor/github.com/google/certificate-transparency-go/x509/nilref_nil_darwin.go create mode 100644 vendor/github.com/google/certificate-transparency-go/x509/nilref_zero_darwin.go create mode 100644 vendor/github.com/google/certificate-transparency-go/x509/pem_decrypt.go create mode 100644 vendor/github.com/google/certificate-transparency-go/x509/pkcs1.go create mode 100644 vendor/github.com/google/certificate-transparency-go/x509/pkcs8.go create mode 100644 vendor/github.com/google/certificate-transparency-go/x509/pkix/pkix.go create mode 100644 vendor/github.com/google/certificate-transparency-go/x509/ptr_sysptr_windows.go create mode 100644 vendor/github.com/google/certificate-transparency-go/x509/ptr_uint_windows.go create mode 100644 vendor/github.com/google/certificate-transparency-go/x509/revoked.go create mode 100644 vendor/github.com/google/certificate-transparency-go/x509/root.go create mode 100644 vendor/github.com/google/certificate-transparency-go/x509/root_bsd.go create mode 100644 vendor/github.com/google/certificate-transparency-go/x509/root_cgo_darwin.go create mode 100644 vendor/github.com/google/certificate-transparency-go/x509/root_darwin.go create mode 100644 vendor/github.com/google/certificate-transparency-go/x509/root_darwin_armx.go create mode 100644 vendor/github.com/google/certificate-transparency-go/x509/root_linux.go create mode 100644 vendor/github.com/google/certificate-transparency-go/x509/root_nacl.go create mode 100644 vendor/github.com/google/certificate-transparency-go/x509/root_nocgo_darwin.go create mode 100644 vendor/github.com/google/certificate-transparency-go/x509/root_plan9.go create mode 100644 vendor/github.com/google/certificate-transparency-go/x509/root_solaris.go create mode 100644 vendor/github.com/google/certificate-transparency-go/x509/root_unix.go create mode 100644 vendor/github.com/google/certificate-transparency-go/x509/root_windows.go create mode 100644 vendor/github.com/google/certificate-transparency-go/x509/rpki.go create mode 100644 vendor/github.com/google/certificate-transparency-go/x509/sec1.go create mode 100644 vendor/github.com/google/certificate-transparency-go/x509/test-dir.crt create mode 100644 vendor/github.com/google/certificate-transparency-go/x509/test-file.crt create mode 100644 vendor/github.com/google/certificate-transparency-go/x509/verify.go create mode 100644 vendor/github.com/google/certificate-transparency-go/x509/x509.go create mode 100644 vendor/github.com/satori/go.uuid/.travis.yml create mode 100644 vendor/github.com/satori/go.uuid/LICENSE create mode 100644 vendor/github.com/satori/go.uuid/README.md create mode 100644 vendor/github.com/satori/go.uuid/codec.go create mode 100644 vendor/github.com/satori/go.uuid/generator.go create mode 100644 vendor/github.com/satori/go.uuid/sql.go create mode 100644 vendor/github.com/satori/go.uuid/uuid.go create mode 100644 vendor/github.com/x448/float16/.travis.yml create mode 100644 vendor/github.com/x448/float16/LICENSE create mode 100644 vendor/github.com/x448/float16/README.md create mode 100644 vendor/github.com/x448/float16/float16.go create mode 100644 vendor/github.com/x448/float16/go.mod create mode 100644 vendor/golang.org/x/crypto/cryptobyte/asn1.go create mode 100644 vendor/golang.org/x/crypto/cryptobyte/asn1/asn1.go create mode 100644 vendor/golang.org/x/crypto/cryptobyte/builder.go create mode 100644 vendor/golang.org/x/crypto/cryptobyte/string.go create mode 100644 vendor/golang.org/x/crypto/pkcs12/bmp-string.go create mode 100644 vendor/golang.org/x/crypto/pkcs12/crypto.go create mode 100644 vendor/golang.org/x/crypto/pkcs12/errors.go create mode 100644 vendor/golang.org/x/crypto/pkcs12/internal/rc2/rc2.go create mode 100644 vendor/golang.org/x/crypto/pkcs12/mac.go create mode 100644 vendor/golang.org/x/crypto/pkcs12/pbkdf.go create mode 100644 vendor/golang.org/x/crypto/pkcs12/pkcs12.go create mode 100644 vendor/golang.org/x/crypto/pkcs12/safebags.go delete mode 100644 web_src/js/features/user-auth-u2f.js create mode 100644 web_src/js/features/user-auth-webauthn.js diff --git a/.eslintrc b/.eslintrc index 28193ce68665b..a0b94d97f1497 100644 --- a/.eslintrc +++ b/.eslintrc @@ -27,7 +27,6 @@ globals: CodeMirror: false Dropzone: false SimpleMDE: false - u2fApi: false settings: html/html-extensions: [".tmpl"] diff --git a/cmd/serv.go b/cmd/serv.go index bb600c8d5012b..334f7b52b9df4 100644 --- a/cmd/serv.go +++ b/cmd/serv.go @@ -27,7 +27,7 @@ import ( "code.gitea.io/gitea/modules/setting" "code.gitea.io/gitea/services/lfs" - "github.com/golang-jwt/jwt" + "github.com/golang-jwt/jwt/v4" "github.com/kballard/go-shellquote" "github.com/urfave/cli" ) @@ -253,7 +253,8 @@ func runServ(c *cli.Context) error { now := time.Now() claims := lfs.Claims{ - StandardClaims: jwt.StandardClaims{ + // FIXME: we need to migrate to RegisteredClaims + StandardClaims: jwt.StandardClaims{ // nolint ExpiresAt: now.Add(setting.LFS.HTTPAuthExpiry).Unix(), NotBefore: now.Unix(), }, diff --git a/custom/conf/app.example.ini b/custom/conf/app.example.ini index f8236d4c935d2..586c924c4ab83 100644 --- a/custom/conf/app.example.ini +++ b/custom/conf/app.example.ini @@ -435,9 +435,10 @@ ENABLE = true ;; NOTE: THE DEFAULT VALUES HERE WILL NEED TO BE CHANGED ;; Two Factor authentication with security keys ;; https://developers.yubico.com/U2F/App_ID.html +;; +;; DEPRECATED - this only applies to previously registered security keys using the U2F standard APP_ID = ; e.g. http://localhost:3000/ -;; Comma separated list of trusted facets -TRUSTED_FACETS = ; e.g. http://localhost:3000/ + ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; diff --git a/docs/content/doc/advanced/config-cheat-sheet.en-us.md b/docs/content/doc/advanced/config-cheat-sheet.en-us.md index d768f24d40962..6cbc9b91f985b 100644 --- a/docs/content/doc/advanced/config-cheat-sheet.en-us.md +++ b/docs/content/doc/advanced/config-cheat-sheet.en-us.md @@ -974,9 +974,8 @@ NB: You must have `DISABLE_ROUTER_LOG` set to `false` for this option to take ef - `LANGS`: **en-US,zh-CN,zh-HK,zh-TW,de-DE,fr-FR,nl-NL,lv-LV,ru-RU,ja-JP,es-ES,pt-BR,pt-PT,pl-PL,bg-BG,it-IT,fi-FI,tr-TR,cs-CZ,sr-SP,sv-SE,ko-KR,el-GR,fa-IR,hu-HU,id-ID,ml-IN**: List of locales shown in language selector - `NAMES`: **English,简体中文,繁體中文（香港）,繁體中文（台灣）,Deutsch,français,Nederlands,latviešu,русский,日本語,español,português do Brasil,Português de Portugal,polski,български,italiano,suomi,Türkçe,čeština,српски,svenska,한국어,ελληνικά,فارسی,magyar nyelv,bahasa Indonesia,മലയാളം**: Visible names corresponding to the locales -## U2F (`U2F`) -- `APP_ID`: **`ROOT_URL`**: Declares the facet of the application. Requires HTTPS. -- `TRUSTED_FACETS`: List of additional facets which are trusted. This is not support by all browsers. +## U2F (`U2F`) **DEPRECATED** +- `APP_ID`: **`ROOT_URL`**: Declares the facet of the application which is used for authentication of previously registered U2F keys. Requires HTTPS. ## Markup (`markup`) diff --git a/go.mod b/go.mod index 96d05a22dc2d6..ea7a3108f5633 100644 --- a/go.mod +++ b/go.mod @@ -30,6 +30,7 @@ require ( github.com/denisenkom/go-mssqldb v0.10.0 github.com/djherbis/buffer v1.2.0 github.com/djherbis/nio/v3 v3.0.1 + github.com/duo-labs/webauthn v0.0.0-20211221191814-a22482edaa3b github.com/dustin/go-humanize v1.0.0 github.com/editorconfig/editorconfig-core-go/v2 v2.4.2 github.com/emirpasic/gods v1.12.0 @@ -50,7 +51,7 @@ require ( github.com/gogs/chardet v0.0.0-20191104214054-4b6791f73a28 github.com/gogs/cron v0.0.0-20171120032916-9f6c956d3e14 github.com/gogs/go-gogs-client v0.0.0-20210131175652-1d7215cd8d85 - github.com/golang-jwt/jwt v3.2.2+incompatible + github.com/golang-jwt/jwt/v4 v4.2.0 github.com/golang/snappy v0.0.4 // indirect github.com/google/go-github/v39 v39.2.0 github.com/google/uuid v1.2.0 @@ -140,6 +141,8 @@ require ( replace github.com/hashicorp/go-version => github.com/6543/go-version v1.3.1 -replace github.com/golang-jwt/jwt v3.2.1+incompatible => github.com/golang-jwt/jwt v3.2.2+incompatible +replace github.com/markbates/goth v1.68.0 => github.com/zeripath/goth v1.68.1-0.20220109111530-754359885dce replace github.com/shurcooL/vfsgen => github.com/lunny/vfsgen v0.0.0-20220105142115-2c99e1ffdfa0 + +replace github.com/duo-labs/webauthn => github.com/authelia/webauthn v0.0.0-20211225121951-80d1f2a572e4 diff --git a/go.sum b/go.sum index 16a0fd3cc5717..71ca3f67e1f6a 100644 --- a/go.sum +++ b/go.sum @@ -131,6 +131,8 @@ github.com/asaskevich/govalidator v0.0.0-20200428143746-21a406dcc535/go.mod h1:o github.com/asaskevich/govalidator v0.0.0-20200907205600-7a23bdc65eef/go.mod h1:WaHUgvxTVq04UNunO+XhnAqY/wQc+bxr74GqbsZ/Jqw= github.com/asaskevich/govalidator v0.0.0-20210307081110-f21760c49a8d h1:Byv0BzEl3/e6D5CLfI0j/7hiIEtvGVFPCZ7Ei2oq8iQ= github.com/asaskevich/govalidator v0.0.0-20210307081110-f21760c49a8d/go.mod h1:WaHUgvxTVq04UNunO+XhnAqY/wQc+bxr74GqbsZ/Jqw= +github.com/authelia/webauthn v0.0.0-20211225121951-80d1f2a572e4 h1:u3eFvgr4A8IjlAokbFt6XY6VdurX7DEYnQMQ4K2yobc= +github.com/authelia/webauthn v0.0.0-20211225121951-80d1f2a572e4/go.mod h1:EYSpSkwoEcryMmQGfhol2IiB3IMN9IIIaNd/wcAQMGQ= github.com/aws/aws-lambda-go v1.13.3/go.mod h1:4UKl9IzQMoD+QF79YdCuzCwp8VbmG4VAQwij/eHl5CU= github.com/aws/aws-sdk-go v1.27.0/go.mod h1:KmX6BPdI08NWTb3/sm4ZGu5ShLoqVDhKgpiN924inxo= github.com/aws/aws-sdk-go v1.34.28/go.mod h1:H7NKnBqNVzoTJpGfLrQkkD+ytBA93eiDYi/+8rV9s48= @@ -209,6 +211,8 @@ github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e/go.mod h1:nSuG5e5P github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMnBNeIyt5eFwwo7qiLfzFZmjNmxjkiQlU= github.com/clbanning/x2j v0.0.0-20191024224557-825249438eec/go.mod h1:jMjuTZXRI4dUb/I5gc9Hdhagfvm9+RyrPryS/auMzxE= github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw= +github.com/cloudflare/cfssl v0.0.0-20190726000631-633726f6bcb7 h1:Puu1hUwfps3+1CUzYdAZXijuvLuRMirgiXdf3zsM2Ig= +github.com/cloudflare/cfssl v0.0.0-20190726000631-633726f6bcb7/go.mod h1:yMWuSON2oQp+43nFtAV/uvKQIFpSPerB57DCt9t8sSA= github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGXZJjfX53e64911xZQV5JYwmTeXPW+k8Sc= github.com/cncf/udpa/go v0.0.0-20200629203442-efcf912fb354/go.mod h1:WmhPx2Nbnhtbo57+VJT5O0JRkEi1Wbu0z5j0R8u5Hbk= github.com/cncf/udpa/go v0.0.0-20201120205902-5459f2c99403/go.mod h1:WmhPx2Nbnhtbo57+VJT5O0JRkEi1Wbu0z5j0R8u5Hbk= @@ -303,6 +307,8 @@ github.com/franela/goreq v0.0.0-20171204163338-bcd34c9993f8/go.mod h1:ZhphrRTfi2 github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo= github.com/fsnotify/fsnotify v1.4.9 h1:hsms1Qyu0jgnwNXIxa+/V/PDsU6CfLf6CNO8H7IWoS4= github.com/fsnotify/fsnotify v1.4.9/go.mod h1:znqG4EE+3YCdAaPaxE2ZRY/06pZUdp0tY4IgpuI1SZQ= +github.com/fxamacker/cbor/v2 v2.2.0 h1:6eXqdDDe588rSYAi1HfZKbx6YYQO4mxQ9eC6xYpU/JQ= +github.com/fxamacker/cbor/v2 v2.2.0/go.mod h1:TA1xS00nchWmaBnEIxPSE5oHLuJBAVvqrtAnWBwBCVo= github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04= github.com/gliderlabs/ssh v0.2.2/go.mod h1:U7qILu1NlMHj9FlMhZLlkCdDnU1DBEAqr0aevW3Awn0= github.com/gliderlabs/ssh v0.3.3 h1:mBQ8NiOgDkINJrZtoizkC3nDNYgSaWtxyem6S2XHBtA= @@ -498,8 +504,9 @@ github.com/gogs/cron v0.0.0-20171120032916-9f6c956d3e14 h1:yXtpJr/LV6PFu4nTLgfjQ github.com/gogs/cron v0.0.0-20171120032916-9f6c956d3e14/go.mod h1:jPoNZLWDAqA5N3G5amEoiNbhVrmM+ZQEcnQvNQ2KaZk= github.com/gogs/go-gogs-client v0.0.0-20210131175652-1d7215cd8d85 h1:UjoPNDAQ5JPCjlxoJd6K8ALZqSDDhk2ymieAZOVaDg0= github.com/gogs/go-gogs-client v0.0.0-20210131175652-1d7215cd8d85/go.mod h1:fR6z1Ie6rtF7kl/vBYMfgD5/G5B1blui7z426/sj2DU= -github.com/golang-jwt/jwt v3.2.2+incompatible h1:IfV12K8xAKAnZqdXVzCZ+TOjboZ2keLg81eXfW3O+oY= -github.com/golang-jwt/jwt v3.2.2+incompatible/go.mod h1:8pz2t5EyA70fFQQSrl6XZXzqecmYZeUEB8OUGHkxJ+I= +github.com/golang-jwt/jwt/v4 v4.1.0/go.mod h1:/xlHOz8bRuivTWchD4jCa+NbatV+wEUSzwAxVc6locg= +github.com/golang-jwt/jwt/v4 v4.2.0 h1:besgBTC8w8HjP6NzQdxwKH9Z5oQMZ24ThTrHp3cZ8eU= +github.com/golang-jwt/jwt/v4 v4.2.0/go.mod h1:/xlHOz8bRuivTWchD4jCa+NbatV+wEUSzwAxVc6locg= github.com/golang-sql/civil v0.0.0-20190719163853-cb61b32ac6fe h1:lXe2qZdvpiX5WZkZR4hgp4KJVfY3nMkvmwbVkpv1rVY= github.com/golang-sql/civil v0.0.0-20190719163853-cb61b32ac6fe/go.mod h1:8vg3r2VgvsThLBIFL93Qb5yWzgyZWhEmBwUJWevAkK0= github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q= @@ -540,6 +547,8 @@ github.com/golang/snappy v0.0.4 h1:yAGX7huGHXlcLOEtBnF4w7FQwA26wojNCwOYAEhLjQM= github.com/golang/snappy v0.0.4/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q= github.com/google/btree v0.0.0-20180813153112-4030bb1f1f0c/go.mod h1:lNA+9X1NB3Zf8V7Ke586lFgjr2dZNuvo3lPJSGZ5JPQ= github.com/google/btree v1.0.0/go.mod h1:lNA+9X1NB3Zf8V7Ke586lFgjr2dZNuvo3lPJSGZ5JPQ= +github.com/google/certificate-transparency-go v1.0.21 h1:Yf1aXowfZ2nuboBsg7iYGLmwsOARdV86pfH3g95wXmE= +github.com/google/certificate-transparency-go v1.0.21/go.mod h1:QeJfpSbVSfYc7RgB3gJFj9cbuQMMchQxrWXz8Ruopmg= github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M= github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU= github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU= @@ -819,8 +828,6 @@ github.com/mailru/easyjson v0.7.7 h1:UGYAvKxe3sBsEDzO8ZeWOSlIQfWFlxbzLZe7hwFURr0 github.com/mailru/easyjson v0.7.7/go.mod h1:xzfreul335JAWq5oZzymOObrkdz5UnU4kGfJJLY9Nlc= github.com/markbates/going v1.0.0 h1:DQw0ZP7NbNlFGcKbcE/IVSOAFzScxRtLpd0rLMzLhq0= github.com/markbates/going v1.0.0/go.mod h1:I6mnB4BPnEeqo85ynXIx1ZFLLbtiLHNXVgWeFO9OGOA= -github.com/markbates/goth v1.68.0 h1:90sKvjRAKHcl9V2uC9x/PJXeD78cFPiBsyP1xVhoQfA= -github.com/markbates/goth v1.68.0/go.mod h1:V2VcDMzDiMHW+YmqYl7i0cMiAUeCkAe4QE6jRKBhXZw= github.com/markbates/oncer v0.0.0-20181203154359-bf2de49a0be2/go.mod h1:Ld9puTsIW75CHf65OeIOkyKbteujpZVXDpWK6YGZbxE= github.com/markbates/safe v1.0.1/go.mod h1:nAqgmRi7cY2nqMc92/bSEeQA+R4OheNU2T1kNSCBdG0= github.com/matryer/is v1.2.0 h1:92UTHpy8CDwaJ08GqLDzhhuixiBUUD1p3AU6PHddz4A= @@ -1034,6 +1041,7 @@ github.com/russross/blackfriday/v2 v2.1.0 h1:JIOH55/0cWyOuilr9/qlrm0BSXldqnqwMsf github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM= github.com/ryanuber/columnize v0.0.0-20160712163229-9b3edd62028f/go.mod h1:sm1tb6uqfes/u+d4ooFouqFdy9/2g9QGwK3SQygK0Ts= github.com/samuel/go-zookeeper v0.0.0-20190923202752-2cc03de413da/go.mod h1:gi+0XIa01GRL2eRQVjQkKGqKF3SF9vZR/HnPullcV2E= +github.com/satori/go.uuid v1.2.0 h1:0uYX9dsZ2yD7q2RtLRtPSdGDWzjeM3TbMJP9utgA0ww= github.com/satori/go.uuid v1.2.0/go.mod h1:dA0hQrYB0VpLJoorglMZABFdXlWrHn1NEOzdhQKdks0= github.com/sean-/seed v0.0.0-20170313163322-e2103e2c3529/go.mod h1:DxrIzT+xaE7yg65j358z/aeFdxmN0P9QXhEzd20vsDc= github.com/sergi/go-diff v1.0.0/go.mod h1:0CfEIISq7TuYL3j771MWULgwwjU+GofnZX9QAmXWZgo= @@ -1141,6 +1149,8 @@ github.com/urfave/cli v1.22.5 h1:lNq9sAHXK2qfdI8W+GRItjCEkI+2oR4d+MEHy1CKXoU= github.com/urfave/cli v1.22.5/go.mod h1:Gos4lmkARVdJ6EkW0WaNv/tZAAMe9V7XWyB60NtXRu0= github.com/vektah/gqlparser v1.1.2/go.mod h1:1ycwN7Ij5njmMkPPAOaRFY4rET2Enx7IkVv3vaXspKw= github.com/willf/bitset v1.1.10/go.mod h1:RjeCKbqT1RxIR/KWY6phxZiaY1IyutSBfGjNPySAYV4= +github.com/x448/float16 v0.8.4 h1:qLwI1I70+NjRFUR3zs1JPUCgaCXSh3SW62uAKT1mSBM= +github.com/x448/float16 v0.8.4/go.mod h1:14CWIYCyZA/cWjXOioeEpHeN/83MdbZDRQHoFcYsOfg= github.com/xanzy/go-gitlab v0.50.1 h1:eH1G0/ZV1j81rhGrtbcePjbM5Ern7mPA4Xjt+yE+2PQ= github.com/xanzy/go-gitlab v0.50.1/go.mod h1:Q+hQhV508bDPoBijv7YjK/Lvlb4PhVhJdKqXVQrUoAE= github.com/xanzy/ssh-agent v0.3.0 h1:wUMzuKtKilRgBAD1sUb8gOwwRr2FGoBVumcjoOACClI= @@ -1169,6 +1179,8 @@ github.com/yuin/goldmark-highlighting v0.0.0-20210516132338-9216f9c5aa01/go.mod github.com/yuin/goldmark-meta v1.0.0 h1:ScsatUIT2gFS6azqzLGUjgOnELsBOxMXerM3ogdJhAM= github.com/yuin/goldmark-meta v1.0.0/go.mod h1:zsNNOrZ4nLuyHAJeLQEZcQat8dm70SmB2kHbls092Gc= github.com/zenazn/goji v0.9.0/go.mod h1:7S9M489iMyHBNxwZnk9/EHS098H4/F6TATF2mIxtB1Q= +github.com/zeripath/goth v1.68.1-0.20220109111530-754359885dce h1:ul/k+Fu3/2h+hxIaEMrn6m96X1Wf+TQk9G7zyuvy1Ws= +github.com/zeripath/goth v1.68.1-0.20220109111530-754359885dce/go.mod h1:uk3KIdtCKdmyNABgOSmHFNHN0AcKqkLs8j5Ak3Ioe1Q= github.com/ziutek/mymysql v1.5.4/go.mod h1:LMSpPZ6DbqWFxNCHW77HeMg9I646SAhApZ/wKdgO/C0= go.etcd.io/bbolt v1.3.2/go.mod h1:IbVyRI1SCnLcuJnV2u8VeU0CEYM7e686BmAb1XKL+uU= go.etcd.io/bbolt v1.3.3/go.mod h1:IbVyRI1SCnLcuJnV2u8VeU0CEYM7e686BmAb1XKL+uU= diff --git a/models/auth/main_test.go b/models/auth/main_test.go index 94a1f405d93cb..4255f488fe601 100644 --- a/models/auth/main_test.go +++ b/models/auth/main_test.go @@ -17,6 +17,6 @@ func TestMain(m *testing.M) { "oauth2_application.yml", "oauth2_authorization_code.yml", "oauth2_grant.yml", - "u2f_registration.yml", + "webauthn_credential.yml", ) } diff --git a/models/auth/u2f.go b/models/auth/u2f.go deleted file mode 100644 index 71943b237c88f..0000000000000 --- a/models/auth/u2f.go +++ /dev/null @@ -1,154 +0,0 @@ -// Copyright 2018 The Gitea Authors. All rights reserved. -// Use of this source code is governed by a MIT-style -// license that can be found in the LICENSE file. - -package auth - -import ( - "fmt" - - "code.gitea.io/gitea/models/db" - "code.gitea.io/gitea/modules/log" - "code.gitea.io/gitea/modules/timeutil" - - "github.com/tstranex/u2f" -) - -// ____ ________________________________ .__ __ __ .__ -// | | \_____ \_ _____/\______ \ ____ ____ |__| _______/ |_____________ _/ |_|__| ____ ____ -// | | // ____/| __) | _// __ \ / ___\| |/ ___/\ __\_ __ \__ \\ __\ |/ _ \ / \ -// | | // \| \ | | \ ___// /_/ > |\___ \ | | | | \// __ \| | | ( <_> ) | \ -// |______/ \_______ \___ / |____|_ /\___ >___ /|__/____ > |__| |__| (____ /__| |__|\____/|___| / -// \/ \/ \/ \/_____/ \/ \/ \/ - -// ErrU2FRegistrationNotExist represents a "ErrU2FRegistrationNotExist" kind of error. -type ErrU2FRegistrationNotExist struct { - ID int64 -} - -func (err ErrU2FRegistrationNotExist) Error() string { - return fmt.Sprintf("U2F registration does not exist [id: %d]", err.ID) -} - -// IsErrU2FRegistrationNotExist checks if an error is a ErrU2FRegistrationNotExist. -func IsErrU2FRegistrationNotExist(err error) bool { - _, ok := err.(ErrU2FRegistrationNotExist) - return ok -} - -// U2FRegistration represents the registration data and counter of a security key -type U2FRegistration struct { - ID int64 `xorm:"pk autoincr"` - Name string - UserID int64 `xorm:"INDEX"` - Raw []byte - Counter uint32 `xorm:"BIGINT"` - CreatedUnix timeutil.TimeStamp `xorm:"INDEX created"` - UpdatedUnix timeutil.TimeStamp `xorm:"INDEX updated"` -} - -func init() { - db.RegisterModel(new(U2FRegistration)) -} - -// TableName returns a better table name for U2FRegistration -func (reg U2FRegistration) TableName() string { - return "u2f_registration" -} - -// Parse will convert the db entry U2FRegistration to an u2f.Registration struct -func (reg *U2FRegistration) Parse() (*u2f.Registration, error) { - r := new(u2f.Registration) - return r, r.UnmarshalBinary(reg.Raw) -} - -func (reg *U2FRegistration) updateCounter(e db.Engine) error { - _, err := e.ID(reg.ID).Cols("counter").Update(reg) - return err -} - -// UpdateCounter will update the database value of counter -func (reg *U2FRegistration) UpdateCounter() error { - return reg.updateCounter(db.GetEngine(db.DefaultContext)) -} - -// U2FRegistrationList is a list of *U2FRegistration -type U2FRegistrationList []*U2FRegistration - -// ToRegistrations will convert all U2FRegistrations to u2f.Registrations -func (list U2FRegistrationList) ToRegistrations() []u2f.Registration { - regs := make([]u2f.Registration, 0, len(list)) - for _, reg := range list { - r, err := reg.Parse() - if err != nil { - log.Error("parsing u2f registration: %v", err) - continue - } - regs = append(regs, *r) - } - - return regs -} - -func getU2FRegistrationsByUID(e db.Engine, uid int64) (U2FRegistrationList, error) { - regs := make(U2FRegistrationList, 0) - return regs, e.Where("user_id = ?", uid).Find(®s) -} - -// GetU2FRegistrationByID returns U2F registration by id -func GetU2FRegistrationByID(id int64) (*U2FRegistration, error) { - return getU2FRegistrationByID(db.GetEngine(db.DefaultContext), id) -} - -func getU2FRegistrationByID(e db.Engine, id int64) (*U2FRegistration, error) { - reg := new(U2FRegistration) - if found, err := e.ID(id).Get(reg); err != nil { - return nil, err - } else if !found { - return nil, ErrU2FRegistrationNotExist{ID: id} - } - return reg, nil -} - -// GetU2FRegistrationsByUID returns all U2F registrations of the given user -func GetU2FRegistrationsByUID(uid int64) (U2FRegistrationList, error) { - return getU2FRegistrationsByUID(db.GetEngine(db.DefaultContext), uid) -} - -// HasU2FRegistrationsByUID returns whether a given user has U2F registrations -func HasU2FRegistrationsByUID(uid int64) (bool, error) { - return db.GetEngine(db.DefaultContext).Where("user_id = ?", uid).Exist(&U2FRegistration{}) -} - -func createRegistration(e db.Engine, userID int64, name string, reg *u2f.Registration) (*U2FRegistration, error) { - raw, err := reg.MarshalBinary() - if err != nil { - return nil, err - } - r := &U2FRegistration{ - UserID: userID, - Name: name, - Counter: 0, - Raw: raw, - } - _, err = e.InsertOne(r) - if err != nil { - return nil, err - } - return r, nil -} - -// CreateRegistration will create a new U2FRegistration from the given Registration -func CreateRegistration(userID int64, name string, reg *u2f.Registration) (*U2FRegistration, error) { - return createRegistration(db.GetEngine(db.DefaultContext), userID, name, reg) -} - -// DeleteRegistration will delete U2FRegistration -func DeleteRegistration(reg *U2FRegistration) error { - return deleteRegistration(db.GetEngine(db.DefaultContext), reg) -} - -func deleteRegistration(e db.Engine, reg *U2FRegistration) error { - _, err := e.Delete(reg) - return err -} diff --git a/models/auth/u2f_test.go b/models/auth/u2f_test.go deleted file mode 100644 index 32ad17839c92d..0000000000000 --- a/models/auth/u2f_test.go +++ /dev/null @@ -1,100 +0,0 @@ -// Copyright 2020 The Gitea Authors. All rights reserved. -// Use of this source code is governed by a MIT-style -// license that can be found in the LICENSE file. - -package auth - -import ( - "encoding/hex" - "testing" - - "code.gitea.io/gitea/models/unittest" - - "github.com/stretchr/testify/assert" - "github.com/tstranex/u2f" -) - -func TestGetU2FRegistrationByID(t *testing.T) { - assert.NoError(t, unittest.PrepareTestDatabase()) - - res, err := GetU2FRegistrationByID(1) - assert.NoError(t, err) - assert.Equal(t, "U2F Key", res.Name) - - _, err = GetU2FRegistrationByID(342432) - assert.Error(t, err) - assert.True(t, IsErrU2FRegistrationNotExist(err)) -} - -func TestGetU2FRegistrationsByUID(t *testing.T) { - assert.NoError(t, unittest.PrepareTestDatabase()) - - res, err := GetU2FRegistrationsByUID(32) - - assert.NoError(t, err) - assert.Len(t, res, 1) - assert.Equal(t, "U2F Key", res[0].Name) -} - -func TestU2FRegistration_TableName(t *testing.T) { - assert.Equal(t, "u2f_registration", U2FRegistration{}.TableName()) -} - -func TestU2FRegistration_UpdateCounter(t *testing.T) { - assert.NoError(t, unittest.PrepareTestDatabase()) - reg := unittest.AssertExistsAndLoadBean(t, &U2FRegistration{ID: 1}).(*U2FRegistration) - reg.Counter = 1 - assert.NoError(t, reg.UpdateCounter()) - unittest.AssertExistsIf(t, true, &U2FRegistration{ID: 1, Counter: 1}) -} - -func TestU2FRegistration_UpdateLargeCounter(t *testing.T) { - assert.NoError(t, unittest.PrepareTestDatabase()) - reg := unittest.AssertExistsAndLoadBean(t, &U2FRegistration{ID: 1}).(*U2FRegistration) - reg.Counter = 0xffffffff - assert.NoError(t, reg.UpdateCounter()) - unittest.AssertExistsIf(t, true, &U2FRegistration{ID: 1, Counter: 0xffffffff}) -} - -func TestCreateRegistration(t *testing.T) { - assert.NoError(t, unittest.PrepareTestDatabase()) - - res, err := CreateRegistration(1, "U2F Created Key", &u2f.Registration{Raw: []byte("Test")}) - assert.NoError(t, err) - assert.Equal(t, "U2F Created Key", res.Name) - assert.Equal(t, []byte("Test"), res.Raw) - - unittest.AssertExistsIf(t, true, &U2FRegistration{Name: "U2F Created Key", UserID: 1}) -} - -func TestDeleteRegistration(t *testing.T) { - assert.NoError(t, unittest.PrepareTestDatabase()) - reg := unittest.AssertExistsAndLoadBean(t, &U2FRegistration{ID: 1}).(*U2FRegistration) - - assert.NoError(t, DeleteRegistration(reg)) - unittest.AssertNotExistsBean(t, &U2FRegistration{ID: 1}) -} - -const validU2FRegistrationResponseHex = "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" - -func TestToRegistrations_SkipInvalidItemsWithoutCrashing(t *testing.T) { - regKeyRaw, _ := hex.DecodeString(validU2FRegistrationResponseHex) - regs := U2FRegistrationList{ - &U2FRegistration{ID: 1}, - &U2FRegistration{ID: 2, Name: "U2F Key", UserID: 2, Counter: 0, Raw: regKeyRaw, CreatedUnix: 946684800, UpdatedUnix: 946684800}, - } - - actual := regs.ToRegistrations() - assert.Len(t, actual, 1) -} - -func TestToRegistrations(t *testing.T) { - regKeyRaw, _ := hex.DecodeString(validU2FRegistrationResponseHex) - regs := U2FRegistrationList{ - &U2FRegistration{ID: 1, Name: "U2F Key", UserID: 1, Counter: 0, Raw: regKeyRaw, CreatedUnix: 946684800, UpdatedUnix: 946684800}, - &U2FRegistration{ID: 2, Name: "U2F Key", UserID: 2, Counter: 0, Raw: regKeyRaw, CreatedUnix: 946684800, UpdatedUnix: 946684800}, - } - - actual := regs.ToRegistrations() - assert.Len(t, actual, 2) -} diff --git a/models/auth/webauthn.go b/models/auth/webauthn.go new file mode 100644 index 0000000000000..75776f1e0ea4f --- /dev/null +++ b/models/auth/webauthn.go @@ -0,0 +1,222 @@ +// Copyright 2020 The Gitea Authors. All rights reserved. +// Use of this source code is governed by a MIT-style +// license that can be found in the LICENSE file. + +package auth + +import ( + "context" + "encoding/base64" + "fmt" + "strings" + + "code.gitea.io/gitea/models/db" + "code.gitea.io/gitea/modules/timeutil" + "xorm.io/xorm" + + "github.com/duo-labs/webauthn/webauthn" +) + +// ErrWebAuthnCredentialNotExist represents a "ErrWebAuthnCRedentialNotExist" kind of error. +type ErrWebAuthnCredentialNotExist struct { + ID int64 + CredentialID string +} + +func (err ErrWebAuthnCredentialNotExist) Error() string { + if err.CredentialID == "" { + return fmt.Sprintf("WebAuthn credential does not exist [id: %d]", err.ID) + } + return fmt.Sprintf("WebAuthn credential does not exist [credential_id: %s]", err.CredentialID) +} + +//IsErrWebAuthnCredentialNotExist checks if an error is a ErrWebAuthnCredentialNotExist. +func IsErrWebAuthnCredentialNotExist(err error) bool { + _, ok := err.(ErrWebAuthnCredentialNotExist) + return ok +} + +//WebAuthnCredential represents the WebAuthn credential data for a public-key +//credential conformant to WebAuthn Level 1 +type WebAuthnCredential struct { + ID int64 `xorm:"pk autoincr"` + Name string + LowerName string `xorm:"unique(s)"` + UserID int64 `xorm:"INDEX unique(s)"` + CredentialID string `xorm:"INDEX"` + PublicKey []byte + AttestationType string + AAGUID []byte + SignCount uint32 `xorm:"BIGINT"` + CloneWarning bool + CreatedUnix timeutil.TimeStamp `xorm:"INDEX created"` + UpdatedUnix timeutil.TimeStamp `xorm:"INDEX updated"` +} + +func init() { + db.RegisterModel(new(WebAuthnCredential)) +} + +// TableName returns a better table name for WebAuthnCredential +func (cred WebAuthnCredential) TableName() string { + return "webauthn_credential" +} + +// UpdateSignCount will update the database value of SignCount +func (cred *WebAuthnCredential) UpdateSignCount() error { + return cred.updateSignCount(db.DefaultContext) +} + +func (cred *WebAuthnCredential) updateSignCount(ctx context.Context) error { + _, err := db.GetEngine(ctx).ID(cred.ID).Cols("sign_count").Update(cred) + return err +} + +// BeforeInsert will be invoked by XORM before updating a record +func (cred *WebAuthnCredential) BeforeInsert() { + cred.LowerName = strings.ToLower(cred.Name) +} + +// BeforeUpdate will be invoked by XORM before updating a record +func (cred *WebAuthnCredential) BeforeUpdate() { + cred.LowerName = strings.ToLower(cred.Name) +} + +// AfterLoad is invoked from XORM after setting the values of all fields of this object. +func (cred *WebAuthnCredential) AfterLoad(session *xorm.Session) { + cred.LowerName = strings.ToLower(cred.Name) +} + +// WebAuthnCredentialList is a list of *WebAuthnCredential +type WebAuthnCredentialList []*WebAuthnCredential + +// ToCredentials will convert all WebAuthnCredentials to webauthn.Credentials +func (list WebAuthnCredentialList) ToCredentials() []webauthn.Credential { + creds := make([]webauthn.Credential, 0, len(list)) + for _, cred := range list { + credID, _ := base64.RawStdEncoding.DecodeString(cred.CredentialID) + creds = append(creds, webauthn.Credential{ + ID: credID, + PublicKey: cred.PublicKey, + AttestationType: cred.AttestationType, + Authenticator: webauthn.Authenticator{ + AAGUID: cred.AAGUID, + SignCount: cred.SignCount, + CloneWarning: cred.CloneWarning, + }, + }) + } + return creds +} + +//GetWebAuthnCredentialsByUID returns all WebAuthn credentials of the given user +func GetWebAuthnCredentialsByUID(uid int64) (WebAuthnCredentialList, error) { + return getWebAuthnCredentialsByUID(db.DefaultContext, uid) +} + +func getWebAuthnCredentialsByUID(ctx context.Context, uid int64) (WebAuthnCredentialList, error) { + creds := make(WebAuthnCredentialList, 0) + return creds, db.GetEngine(ctx).Where("user_id = ?", uid).Find(&creds) +} + +//ExistsWebAuthnCredentialsForUID returns if the given user has credentials +func ExistsWebAuthnCredentialsForUID(uid int64) (bool, error) { + return existsWebAuthnCredentialsByUID(db.DefaultContext, uid) +} + +func existsWebAuthnCredentialsByUID(ctx context.Context, uid int64) (bool, error) { + return db.GetEngine(ctx).Where("user_id = ?", uid).Exist(&WebAuthnCredential{}) +} + +// GetWebAuthnCredentialByName returns WebAuthn credential by id +func GetWebAuthnCredentialByName(uid int64, name string) (*WebAuthnCredential, error) { + return getWebAuthnCredentialByName(db.DefaultContext, uid, name) +} + +func getWebAuthnCredentialByName(ctx context.Context, uid int64, name string) (*WebAuthnCredential, error) { + cred := new(WebAuthnCredential) + if found, err := db.GetEngine(ctx).Where("user_id = ? AND lower_name = ?", uid, strings.ToLower(name)).Get(cred); err != nil { + return nil, err + } else if !found { + return nil, ErrWebAuthnCredentialNotExist{} + } + return cred, nil +} + +// GetWebAuthnCredentialByID returns WebAuthn credential by id +func GetWebAuthnCredentialByID(id int64) (*WebAuthnCredential, error) { + return getWebAuthnCredentialByID(db.DefaultContext, id) +} + +func getWebAuthnCredentialByID(ctx context.Context, id int64) (*WebAuthnCredential, error) { + cred := new(WebAuthnCredential) + if found, err := db.GetEngine(ctx).ID(id).Get(cred); err != nil { + return nil, err + } else if !found { + return nil, ErrWebAuthnCredentialNotExist{ID: id} + } + return cred, nil +} + +// HasWebAuthnRegistrationsByUID returns whether a given user has WebAuthn registrations +func HasWebAuthnRegistrationsByUID(uid int64) (bool, error) { + return db.GetEngine(db.DefaultContext).Where("user_id = ?", uid).Exist(&WebAuthnCredential{}) +} + +// GetWebAuthnCredentialByCredID returns WebAuthn credential by credential ID +func GetWebAuthnCredentialByCredID(credID string) (*WebAuthnCredential, error) { + return getWebAuthnCredentialByCredID(db.DefaultContext, credID) +} + +func getWebAuthnCredentialByCredID(ctx context.Context, credID string) (*WebAuthnCredential, error) { + cred := new(WebAuthnCredential) + if found, err := db.GetEngine(ctx).Where("credential_id = ?", credID).Get(cred); err != nil { + return nil, err + } else if !found { + return nil, ErrWebAuthnCredentialNotExist{CredentialID: credID} + } + return cred, nil +} + +// CreateCredential will create a new WebAuthnCredential from the given Credential +func CreateCredential(userID int64, name string, cred *webauthn.Credential) (*WebAuthnCredential, error) { + return createCredential(db.DefaultContext, userID, name, cred) +} + +func createCredential(ctx context.Context, userID int64, name string, cred *webauthn.Credential) (*WebAuthnCredential, error) { + c := &WebAuthnCredential{ + UserID: userID, + Name: name, + CredentialID: base64.RawStdEncoding.EncodeToString(cred.ID), + PublicKey: cred.PublicKey, + AttestationType: cred.AttestationType, + AAGUID: cred.Authenticator.AAGUID, + SignCount: cred.Authenticator.SignCount, + CloneWarning: false, + } + + if err := db.Insert(ctx, c); err != nil { + return nil, err + } + return c, nil +} + +// DeleteCredential will delete WebAuthnCredential +func DeleteCredential(id, userID int64) (bool, error) { + return deleteCredential(db.DefaultContext, id, userID) +} + +func deleteCredential(ctx context.Context, id, userID int64) (bool, error) { + had, err := db.GetEngine(ctx).ID(id).Where("user_id = ?", userID).Delete(&WebAuthnCredential{}) + return had > 0, err +} + +//WebAuthnCredentials implementns the webauthn.User interface +func WebAuthnCredentials(userID int64) ([]webauthn.Credential, error) { + dbCreds, err := GetWebAuthnCredentialsByUID(userID) + if err != nil { + return nil, err + } + + return dbCreds.ToCredentials(), nil +} diff --git a/models/auth/webauthn_test.go b/models/auth/webauthn_test.go new file mode 100644 index 0000000000000..572636dbbfd7e --- /dev/null +++ b/models/auth/webauthn_test.go @@ -0,0 +1,69 @@ +// Copyright 2020 The Gitea Authors. All rights reserved. +// Use of this source code is governed by a MIT-style +// license that can be found in the LICENSE file. + +package auth + +import ( + "encoding/base64" + "testing" + + "code.gitea.io/gitea/models/unittest" + + "github.com/duo-labs/webauthn/webauthn" + "github.com/stretchr/testify/assert" +) + +func TestGetWebAuthnCredentialByID(t *testing.T) { + assert.NoError(t, unittest.PrepareTestDatabase()) + + res, err := GetWebAuthnCredentialByID(1) + assert.NoError(t, err) + assert.Equal(t, "WebAuthn credential", res.Name) + + _, err = GetWebAuthnCredentialByID(342432) + assert.Error(t, err) + assert.True(t, IsErrWebAuthnCredentialNotExist(err)) +} + +func TestGetWebAuthnCredentialsByUID(t *testing.T) { + assert.NoError(t, unittest.PrepareTestDatabase()) + + res, err := GetWebAuthnCredentialsByUID(32) + assert.NoError(t, err) + assert.Len(t, res, 1) + assert.Equal(t, "WebAuthn credential", res[0].Name) +} + +func TestWebAuthnCredential_TableName(t *testing.T) { + assert.Equal(t, "webauthn_credential", WebAuthnCredential{}.TableName()) +} + +func TestWebAuthnCredential_UpdateSignCount(t *testing.T) { + assert.NoError(t, unittest.PrepareTestDatabase()) + cred := unittest.AssertExistsAndLoadBean(t, &WebAuthnCredential{ID: 1}).(*WebAuthnCredential) + cred.SignCount = 1 + assert.NoError(t, cred.UpdateSignCount()) + unittest.AssertExistsIf(t, true, &WebAuthnCredential{ID: 1, SignCount: 1}) +} + +func TestWebAuthnCredential_UpdateLargeCounter(t *testing.T) { + assert.NoError(t, unittest.PrepareTestDatabase()) + cred := unittest.AssertExistsAndLoadBean(t, &WebAuthnCredential{ID: 1}).(*WebAuthnCredential) + cred.SignCount = 0xffffffff + assert.NoError(t, cred.UpdateSignCount()) + unittest.AssertExistsIf(t, true, &WebAuthnCredential{ID: 1, SignCount: 0xffffffff}) +} + +func TestCreateCredential(t *testing.T) { + assert.NoError(t, unittest.PrepareTestDatabase()) + + res, err := CreateCredential(1, "WebAuthn Created Credential", &webauthn.Credential{ID: []byte("Test")}) + assert.NoError(t, err) + assert.Equal(t, "WebAuthn Created Credential", res.Name) + bs, err := base64.RawStdEncoding.DecodeString(res.CredentialID) + assert.NoError(t, err) + assert.Equal(t, []byte("Test"), bs) + + unittest.AssertExistsIf(t, true, &WebAuthnCredential{Name: "WebAuthn Created Credential", UserID: 1}) +} diff --git a/models/fixtures/u2f_registration.yml b/models/fixtures/u2f_registration.yml deleted file mode 100644 index 60555c43f1f9f..0000000000000 --- a/models/fixtures/u2f_registration.yml +++ /dev/null @@ -1,7 +0,0 @@ -- - id: 1 - name: "U2F Key" - user_id: 32 - counter: 0 - created_unix: 946684800 - updated_unix: 946684800 diff --git a/models/fixtures/webauthn_credential.yml b/models/fixtures/webauthn_credential.yml new file mode 100644 index 0000000000000..b4109a03f2b2c --- /dev/null +++ b/models/fixtures/webauthn_credential.yml @@ -0,0 +1,8 @@ +- id: 1 + name: "WebAuthn credential" + user_id: 32 + attestation_type: none + sign_count: 0 + clone_warning: false + created_unix: 946684800 + updated_unix: 946684800 diff --git a/models/migrations/migrations.go b/models/migrations/migrations.go index 9423e5c5f6954..4ee2bc839f370 100644 --- a/models/migrations/migrations.go +++ b/models/migrations/migrations.go @@ -366,6 +366,8 @@ var migrations = []Migration{ NewMigration("Migrate to higher varchar on user struct", migrateUserPasswordSalt), // v206 -> v207 NewMigration("Add authorize column to team_unit table", addAuthorizeColForTeamUnit), + // v207 -> v208 + NewMigration("Add webauthn table and migrate u2f data to webauthn", addWebAuthnCred), } // GetCurrentDBVersion returns the current db version diff --git a/models/migrations/v207.go b/models/migrations/v207.go new file mode 100644 index 0000000000000..82e2e3aa314f7 --- /dev/null +++ b/models/migrations/v207.go @@ -0,0 +1,91 @@ +// Copyright 2021 The Gitea Authors. All rights reserved. +// Use of this source code is governed by a MIT-style +// license that can be found in the LICENSE file. + +package migrations + +import ( + "crypto/elliptic" + "encoding/base64" + "strings" + + "code.gitea.io/gitea/modules/timeutil" + + "github.com/tstranex/u2f" + "xorm.io/xorm" +) + +func addWebAuthnCred(x *xorm.Engine) error { + + // Create webauthnCredential table + type webauthnCredential struct { + ID int64 `xorm:"pk autoincr"` + Name string + LowerName string `xorm:"unique(s)"` + UserID int64 `xorm:"INDEX unique(s)"` + CredentialID string `xorm:"INDEX"` + PublicKey []byte + AttestationType string + AAGUID []byte + SignCount uint32 `xorm:"BIGINT"` + CloneWarning bool + CreatedUnix timeutil.TimeStamp `xorm:"INDEX created"` + UpdatedUnix timeutil.TimeStamp `xorm:"INDEX updated"` + } + if err := x.Sync2(&webauthnCredential{}); err != nil { + return err + } + + // Now migrate the old u2f registrations to the new format + type u2fRegistration struct { + ID int64 `xorm:"pk autoincr"` + Name string + UserID int64 `xorm:"INDEX"` + Raw []byte + Counter uint32 `xorm:"BIGINT"` + CreatedUnix timeutil.TimeStamp `xorm:"INDEX created"` + UpdatedUnix timeutil.TimeStamp `xorm:"INDEX updated"` + } + + var start int + regs := make([]*u2fRegistration, 0, 50) + for { + err := x.OrderBy("id").Limit(50, start).Find(®s) + if err != nil { + return err + } + + for _, reg := range regs { + parsed := new(u2f.Registration) + err = parsed.UnmarshalBinary(reg.Raw) + if err != nil { + continue + } + + c := &webauthnCredential{ + ID: reg.ID, + Name: reg.Name, + LowerName: strings.ToLower(reg.Name), + UserID: reg.UserID, + CredentialID: base64.RawStdEncoding.EncodeToString(parsed.KeyHandle), + PublicKey: elliptic.Marshal(elliptic.P256(), parsed.PubKey.X, parsed.PubKey.Y), + AttestationType: "fido-u2f", + AAGUID: []byte{}, + SignCount: reg.Counter, + } + + _, err := x.Insert(c) + if err != nil { + return err + } + } + + if len(regs) < 50 { + break + } + start += 50 + regs = regs[:0] + } + + return nil +} diff --git a/modules/auth/webauthn/webauthn.go b/modules/auth/webauthn/webauthn.go new file mode 100644 index 0000000000000..8f380e7c34682 --- /dev/null +++ b/modules/auth/webauthn/webauthn.go @@ -0,0 +1,78 @@ +// Copyright 2021 The Gitea Authors. All rights reserved. +// Use of this source code is governed by a MIT-style +// license that can be found in the LICENSE file. + +package webauthn + +import ( + "encoding/binary" + "encoding/gob" + "net/url" + + "code.gitea.io/gitea/models/auth" + user_model "code.gitea.io/gitea/models/user" + "code.gitea.io/gitea/modules/setting" + + "github.com/duo-labs/webauthn/protocol" + "github.com/duo-labs/webauthn/webauthn" +) + +//WebAuthn represents the global WebAuthn instance +var WebAuthn *webauthn.WebAuthn + +//Init initializes the WebAuthn instance from the config. +func Init() { + gob.Register(&webauthn.SessionData{}) + + appURL, _ := url.Parse(setting.AppURL) + + WebAuthn = &webauthn.WebAuthn{ + Config: &webauthn.Config{ + RPDisplayName: setting.AppName, + RPID: setting.Domain, + RPOrigin: protocol.FullyQualifiedOrigin(appURL), + AuthenticatorSelection: protocol.AuthenticatorSelection{ + UserVerification: "discouraged", + }, + AttestationPreference: protocol.PreferDirectAttestation, + }, + } +} + +// User represents an implementation of webauthn.User based on User model +type User user_model.User + +//WebAuthnID implements the webauthn.User interface +func (u *User) WebAuthnID() []byte { + id := make([]byte, 8) + binary.PutVarint(id, u.ID) + return id +} + +//WebAuthnName implements the webauthn.User interface +func (u *User) WebAuthnName() string { + if u.LoginName == "" { + return u.Name + } + return u.LoginName +} + +//WebAuthnDisplayName implements the webauthn.User interface +func (u *User) WebAuthnDisplayName() string { + return (*user_model.User)(u).DisplayName() +} + +//WebAuthnIcon implements the webauthn.User interface +func (u *User) WebAuthnIcon() string { + return (*user_model.User)(u).AvatarLink() +} + +//WebAuthnCredentials implementns the webauthn.User interface +func (u *User) WebAuthnCredentials() []webauthn.Credential { + dbCreds, err := auth.GetWebAuthnCredentialsByUID(u.ID) + if err != nil { + return nil + } + + return dbCreds.ToCredentials() +} diff --git a/modules/auth/webauthn/webauthn_test.go b/modules/auth/webauthn/webauthn_test.go new file mode 100644 index 0000000000000..71fb9d2757f91 --- /dev/null +++ b/modules/auth/webauthn/webauthn_test.go @@ -0,0 +1,26 @@ +// Copyright 2021 The Gitea Authors. All rights reserved. +// Use of this source code is governed by a MIT-style +// license that can be found in the LICENSE file. + +package webauthn + +import ( + "testing" + + "code.gitea.io/gitea/modules/setting" + + "github.com/stretchr/testify/assert" +) + +func TestInit(t *testing.T) { + setting.Domain = "domain" + setting.AppName = "AppName" + setting.AppURL = "https://domain/" + rpOrigin := "https://domain" + + Init() + + assert.Equal(t, setting.Domain, WebAuthn.Config.RPID) + assert.Equal(t, setting.AppName, WebAuthn.Config.RPDisplayName) + assert.Equal(t, rpOrigin, WebAuthn.Config.RPOrigin) +} diff --git a/modules/generate/generate.go b/modules/generate/generate.go index ab05a9cb83cd2..ae9aeee18b674 100644 --- a/modules/generate/generate.go +++ b/modules/generate/generate.go @@ -13,7 +13,7 @@ import ( "code.gitea.io/gitea/modules/util" - "github.com/golang-jwt/jwt" + "github.com/golang-jwt/jwt/v4" ) // NewInternalToken generate a new value intended to be used by INTERNAL_TOKEN. diff --git a/modules/setting/setting.go b/modules/setting/setting.go index 2ba6bcf9e784b..abd6716c74e6e 100644 --- a/modules/setting/setting.go +++ b/modules/setting/setting.go @@ -28,7 +28,6 @@ import ( "code.gitea.io/gitea/modules/user" "code.gitea.io/gitea/modules/util" - shellquote "github.com/kballard/go-shellquote" "github.com/unknwon/com" gossh "golang.org/x/crypto/ssh" ini "gopkg.in/ini.v1" @@ -388,8 +387,7 @@ var ( } U2F = struct { - AppID string - TrustedFacets []string + AppID string }{} // Metrics settings @@ -1015,10 +1013,6 @@ func loadFromConf(allowEmpty bool, extraConfig string) { newMarkup() - sec = Cfg.Section("U2F") - U2F.TrustedFacets, _ = shellquote.Split(sec.Key("TRUSTED_FACETS").MustString(strings.TrimSuffix(AppURL, AppSubURL+"/"))) - U2F.AppID = sec.Key("APP_ID").MustString(strings.TrimSuffix(AppURL, "/")) - UI.ReactionsMap = make(map[string]bool) for _, reaction := range UI.Reactions { UI.ReactionsMap[reaction] = true @@ -1027,6 +1021,9 @@ func loadFromConf(allowEmpty bool, extraConfig string) { for _, emoji := range UI.CustomEmojis { UI.CustomEmojisMap[emoji] = ":" + emoji + ":" } + + sec = Cfg.Section("U2F") + U2F.AppID = sec.Key("APP_ID").MustString(strings.TrimSuffix(AppURL, "/")) } func parseAuthorizedPrincipalsAllow(values []string) ([]string, bool) { diff --git a/options/locale/locale_en-US.ini b/options/locale/locale_en-US.ini index b739a90775d4c..e903e4c5342ed 100644 --- a/options/locale/locale_en-US.ini +++ b/options/locale/locale_en-US.ini @@ -34,18 +34,20 @@ twofa = Two-Factor Authentication twofa_scratch = Two-Factor Scratch Code passcode = Passcode -u2f_insert_key = Insert your security key -u2f_sign_in = Press the button on your security key. If your security key has no button, re-insert it. -u2f_press_button = Please press the button on your security key… -u2f_use_twofa = Use a two-factor code from your phone -u2f_error = Could not read your security key. -u2f_unsupported_browser = Your browser does not support U2F security keys. -u2f_error_1 = An unknown error occurred. Please retry. -u2f_error_2 = Please make sure to use the correct, encrypted (https://) URL. -u2f_error_3 = The server could not process your request. -u2f_error_4 = The security key is not permitted for this request. Please make sure that the key is not already registered. -u2f_error_5 = Timeout reached before your key could be read. Please reload this page and retry. -u2f_reload = Reload +webauthn_insert_key = Insert your security key +webauthn_sign_in = Press the button on your security key. If your security key has no button, re-insert it. +webauthn_press_button = Please press the button on your security key… +webauthn_use_twofa = Use a two-factor code from your phone +webauthn_error = Could not read your security key. +webauthn_unsupported_browser = Your browser does not currently support WebAuthn. +webauthn_error_unknown = An unknown error occurred. Please retry. +webauthn_error_insecure = WebAuthn only supports secure connections. For testing over HTTP, you can use the origin "localhost" or "127.0.0.1" +webauthn_error_unable_to_process = The server could not process your request. +webauthn_error_duplicated = The security key is not permitted for this request. Please make sure that the key is not already registered. +webauthn_error_empty = You must set a name for this key. +webauthn_error_timeout = Timeout reached before your key could be read. Please reload this page and retry. +webauthn_u2f_deprecated = The key: '%s' authenticates using the deprecated U2F process. You should re-register this key and remove the old registration. +webauthn_reload = Reload repository = Repository organization = Organization @@ -525,7 +527,7 @@ twofa = Two-Factor Authentication account_link = Linked Accounts organization = Organizations uid = Uid -u2f = Security Keys +webauthn = Security Keys public_profile = Public Profile biography_placeholder = Tell us a little bit about yourself @@ -746,12 +748,12 @@ passcode_invalid = The passcode is incorrect. Try again. twofa_enrolled = Your account has been enrolled into two-factor authentication. Store your scratch token (%s) in a safe place as it is only shown once! twofa_failed_get_secret = Failed to get secret. -u2f_desc = Security keys are hardware devices containing cryptographic keys. They can be used for two-factor authentication. Security keys must support the FIDO U2F standard. -u2f_register_key = Add Security Key -u2f_nickname = Nickname -u2f_press_button = Press the button on your security key to register it. -u2f_delete_key = Remove Security Key -u2f_delete_key_desc = If you remove a security key you can no longer sign in with it. Continue? +webauthn_desc = Security keys are hardware devices containing cryptographic keys. They can be used for two-factor authentication. Security keys must support the WebAuthn Authenticator standard. +webauthn_register_key = Add Security Key +webauthn_nickname = Nickname +webauthn_press_button = Press the button on your security key to register it. +webauthn_delete_key = Remove Security Key +webauthn_delete_key_desc = If you remove a security key you can no longer sign in with it. Continue? manage_account_links = Manage Linked Accounts manage_account_links_desc = These external accounts are linked to your Gitea account. diff --git a/package-lock.json b/package-lock.json index 4dfd3753c81f6..c9151da16c764 100644 --- a/package-lock.json +++ b/package-lock.json @@ -30,6 +30,7 @@ "sortablejs": "1.14.0", "swagger-ui-dist": "4.1.3", "tributejs": "5.1.3", + "uint8-to-base64": "0.2.0", "vue": "2.6.14", "vue-bar-graph": "1.3.0", "vue-calendar-heatmap": "0.8.4", @@ -9738,6 +9739,11 @@ "resolved": "https://registry.npmjs.org/typo-js/-/typo-js-1.2.1.tgz", "integrity": "sha512-bTGLjbD3WqZDR3CgEFkyi9Q/SS2oM29ipXrWfDb4M74ea69QwKAECVceYpaBu0GfdnASMg9Qfl67ttB23nePHg==" }, + "node_modules/uint8-to-base64": { + "version": "0.2.0", + "resolved": "https://registry.npmjs.org/uint8-to-base64/-/uint8-to-base64-0.2.0.tgz", + "integrity": "sha512-r13jrghEYZAN99GeYpEjM107DOxqB65enskpwce8rRHVAGEtaWmsF5GqoGdPMf8DIXc9XyAJTdvlvRZi4LsszA==" + }, "node_modules/unbox-primitive": { "version": "1.0.1", "resolved": "https://registry.npmjs.org/unbox-primitive/-/unbox-primitive-1.0.1.tgz", @@ -17882,6 +17888,11 @@ "resolved": "https://registry.npmjs.org/typo-js/-/typo-js-1.2.1.tgz", "integrity": "sha512-bTGLjbD3WqZDR3CgEFkyi9Q/SS2oM29ipXrWfDb4M74ea69QwKAECVceYpaBu0GfdnASMg9Qfl67ttB23nePHg==" }, + "uint8-to-base64": { + "version": "0.2.0", + "resolved": "https://registry.npmjs.org/uint8-to-base64/-/uint8-to-base64-0.2.0.tgz", + "integrity": "sha512-r13jrghEYZAN99GeYpEjM107DOxqB65enskpwce8rRHVAGEtaWmsF5GqoGdPMf8DIXc9XyAJTdvlvRZi4LsszA==" + }, "unbox-primitive": { "version": "1.0.1", "resolved": "https://registry.npmjs.org/unbox-primitive/-/unbox-primitive-1.0.1.tgz", diff --git a/package.json b/package.json index d2ca602a2f94d..4e6e3dce4536a 100644 --- a/package.json +++ b/package.json @@ -30,6 +30,7 @@ "sortablejs": "1.14.0", "swagger-ui-dist": "4.1.3", "tributejs": "5.1.3", + "uint8-to-base64": "0.2.0", "vue": "2.6.14", "vue-bar-graph": "1.3.0", "vue-calendar-heatmap": "0.8.4", diff --git a/public/vendor/plugins/u2f/index.js b/public/vendor/plugins/u2f/index.js deleted file mode 100644 index 1413f51d7b060..0000000000000 --- a/public/vendor/plugins/u2f/index.js +++ /dev/null @@ -1 +0,0 @@ -this.u2fApi=function(e){var t={};function r(o){if(t[o])return t[o].exports;var n=t[o]={i:o,l:!1,exports:{}};return e[o].call(n.exports,n,n.exports,r),n.l=!0,n.exports}return r.m=e,r.c=t,r.d=function(e,t,o){r.o(e,t)||Object.defineProperty(e,t,{configurable:!1,enumerable:!0,get:o})},r.r=function(e){Object.defineProperty(e,"__esModule",{value:!0})},r.n=function(e){var t=e&&e.__esModule?function(){return e.default}:function(){return e};return r.d(t,"a",t),t},r.o=function(e,t){return Object.prototype.hasOwnProperty.call(e,t)},r.p="",r(r.s=1)}([function(e,t,r){"use strict";var o,n=n||{};e.exports=n,n.EXTENSION_ID="kmendfapggjehodndflmmgagdbamhnfd",n.MessageTypes={U2F_REGISTER_REQUEST:"u2f_register_request",U2F_REGISTER_RESPONSE:"u2f_register_response",U2F_SIGN_REQUEST:"u2f_sign_request",U2F_SIGN_RESPONSE:"u2f_sign_response",U2F_GET_API_VERSION_REQUEST:"u2f_get_api_version_request",U2F_GET_API_VERSION_RESPONSE:"u2f_get_api_version_response"},n.ErrorCodes={OK:0,OTHER_ERROR:1,BAD_REQUEST:2,CONFIGURATION_UNSUPPORTED:3,DEVICE_INELIGIBLE:4,TIMEOUT:5},n.U2fRequest,n.U2fResponse,n.Error,n.Transport,n.Transports,n.SignRequest,n.SignResponse,n.RegisterRequest,n.RegisterResponse,n.RegisteredKey,n.GetJsApiVersionResponse,n.getMessagePort=function(e){if("undefined"!=typeof chrome&&chrome.runtime){var t={type:n.MessageTypes.U2F_SIGN_REQUEST,signRequests:[]};chrome.runtime.sendMessage(n.EXTENSION_ID,t,function(){chrome.runtime.lastError?n.getIframePort_(e):n.getChromeRuntimePort_(e)})}else n.isAndroidChrome_()?n.getAuthenticatorPort_(e):n.isIosChrome_()?n.getIosPort_(e):n.getIframePort_(e)},n.isAndroidChrome_=function(){var e=navigator.userAgent;return-1!=e.indexOf("Chrome")&&-1!=e.indexOf("Android")},n.isIosChrome_=function(){return["iPhone","iPad","iPod"].indexOf(navigator.platform)>-1},n.getChromeRuntimePort_=function(e){var t=chrome.runtime.connect(n.EXTENSION_ID,{includeTlsChannelId:!0});setTimeout(function(){e(new n.WrappedChromeRuntimePort_(t))},0)},n.getAuthenticatorPort_=function(e){setTimeout(function(){e(new n.WrappedAuthenticatorPort_)},0)},n.getIosPort_=function(e){setTimeout(function(){e(new n.WrappedIosPort_)},0)},n.WrappedChromeRuntimePort_=function(e){this.port_=e},n.formatSignRequest_=function(e,t,r,s,i){if(void 0===o||o<1.1){for(var a=[],u=0;u Redirect to U2F instead - regs, err := auth.GetU2FRegistrationsByUID(u.ID) + // If WebAuthn is enrolled -> Redirect to WebAuthn instead + regs, err := auth.GetWebAuthnCredentialsByUID(u.ID) if err == nil && len(regs) > 0 { - ctx.Redirect(setting.AppSubURL + "/user/u2f") + ctx.Redirect(setting.AppSubURL + "/user/webauthn") return } diff --git a/routers/web/auth/oauth.go b/routers/web/auth/oauth.go index d20bf97f3cbf6..65ab9f358ea49 100644 --- a/routers/web/auth/oauth.go +++ b/routers/web/auth/oauth.go @@ -34,7 +34,7 @@ import ( user_service "code.gitea.io/gitea/services/user" "gitea.com/go-chi/binding" - "github.com/golang-jwt/jwt" + "github.com/golang-jwt/jwt/v4" "github.com/markbates/goth" ) @@ -149,7 +149,8 @@ func newAccessTokenResponse(grant *auth.OAuth2Grant, serverKey, clientKey oauth2 accessToken := &oauth2.Token{ GrantID: grant.ID, Type: oauth2.TypeAccessToken, - StandardClaims: jwt.StandardClaims{ + // FIXME: Migrate to RegisteredClaims + StandardClaims: jwt.StandardClaims{ //nolint ExpiresAt: expirationDate.AsTime().Unix(), }, } @@ -167,7 +168,8 @@ func newAccessTokenResponse(grant *auth.OAuth2Grant, serverKey, clientKey oauth2 GrantID: grant.ID, Counter: grant.Counter, Type: oauth2.TypeRefreshToken, - StandardClaims: jwt.StandardClaims{ + // FIXME: Migrate to RegisteredClaims + StandardClaims: jwt.StandardClaims{ // nolint ExpiresAt: refreshExpirationDate, }, } @@ -205,7 +207,8 @@ func newAccessTokenResponse(grant *auth.OAuth2Grant, serverKey, clientKey oauth2 } idToken := &oauth2.OIDCToken{ - StandardClaims: jwt.StandardClaims{ + // FIXME: migrate to RegisteredClaims + StandardClaims: jwt.StandardClaims{ //nolint ExpiresAt: expirationDate.AsTime().Unix(), Issuer: setting.AppURL, Audience: app.ClientID, @@ -326,7 +329,8 @@ func IntrospectOAuth(ctx *context.Context) { var response struct { Active bool `json:"active"` Scope string `json:"scope,omitempty"` - jwt.StandardClaims + // FIXME: Migrate to RegisteredClaims + jwt.StandardClaims //nolint } form := web.GetForm(ctx).(*forms.IntrospectTokenForm) @@ -1066,10 +1070,10 @@ func handleOAuth2SignIn(ctx *context.Context, source *auth.Source, u *user_model log.Error("Error storing session: %v", err) } - // If U2F is enrolled -> Redirect to U2F instead - regs, err := auth.GetU2FRegistrationsByUID(u.ID) + // If WebAuthn is enrolled -> Redirect to WebAuthn instead + regs, err := auth.GetWebAuthnCredentialsByUID(u.ID) if err == nil && len(regs) > 0 { - ctx.Redirect(setting.AppSubURL + "/user/u2f") + ctx.Redirect(setting.AppSubURL + "/user/webauthn") return } diff --git a/routers/web/auth/oauth_test.go b/routers/web/auth/oauth_test.go index c652d901f3efa..669d7431fc483 100644 --- a/routers/web/auth/oauth_test.go +++ b/routers/web/auth/oauth_test.go @@ -12,7 +12,7 @@ import ( user_model "code.gitea.io/gitea/models/user" "code.gitea.io/gitea/services/auth/source/oauth2" - "github.com/golang-jwt/jwt" + "github.com/golang-jwt/jwt/v4" "github.com/stretchr/testify/assert" ) diff --git a/routers/web/auth/u2f.go b/routers/web/auth/u2f.go deleted file mode 100644 index 915671cd1e3da..0000000000000 --- a/routers/web/auth/u2f.go +++ /dev/null @@ -1,136 +0,0 @@ -// Copyright 2017 The Gitea Authors. All rights reserved. -// Use of this source code is governed by a MIT-style -// license that can be found in the LICENSE file. - -package auth - -import ( - "errors" - "net/http" - - "code.gitea.io/gitea/models/auth" - user_model "code.gitea.io/gitea/models/user" - "code.gitea.io/gitea/modules/base" - "code.gitea.io/gitea/modules/context" - "code.gitea.io/gitea/modules/log" - "code.gitea.io/gitea/modules/setting" - "code.gitea.io/gitea/modules/web" - "code.gitea.io/gitea/services/externalaccount" - - "github.com/tstranex/u2f" -) - -var tplU2F base.TplName = "user/auth/u2f" - -// U2F shows the U2F login page -func U2F(ctx *context.Context) { - ctx.Data["Title"] = ctx.Tr("twofa") - ctx.Data["RequireU2F"] = true - // Check auto-login. - if checkAutoLogin(ctx) { - return - } - - // Ensure user is in a 2FA session. - if ctx.Session.Get("twofaUid") == nil { - ctx.ServerError("UserSignIn", errors.New("not in U2F session")) - return - } - - // See whether TOTP is also available. - if ctx.Session.Get("totpEnrolled") != nil { - ctx.Data["TOTPEnrolled"] = true - } - - ctx.HTML(http.StatusOK, tplU2F) -} - -// U2FChallenge submits a sign challenge to the browser -func U2FChallenge(ctx *context.Context) { - // Ensure user is in a U2F session. - idSess := ctx.Session.Get("twofaUid") - if idSess == nil { - ctx.ServerError("UserSignIn", errors.New("not in U2F session")) - return - } - id := idSess.(int64) - regs, err := auth.GetU2FRegistrationsByUID(id) - if err != nil { - ctx.ServerError("UserSignIn", err) - return - } - if len(regs) == 0 { - ctx.ServerError("UserSignIn", errors.New("no device registered")) - return - } - challenge, err := u2f.NewChallenge(setting.U2F.AppID, setting.U2F.TrustedFacets) - if err != nil { - ctx.ServerError("u2f.NewChallenge", err) - return - } - if err := ctx.Session.Set("u2fChallenge", challenge); err != nil { - ctx.ServerError("UserSignIn: unable to set u2fChallenge in session", err) - return - } - if err := ctx.Session.Release(); err != nil { - ctx.ServerError("UserSignIn: unable to store session", err) - } - - ctx.JSON(http.StatusOK, challenge.SignRequest(regs.ToRegistrations())) -} - -// U2FSign authenticates the user by signResp -func U2FSign(ctx *context.Context) { - signResp := web.GetForm(ctx).(*u2f.SignResponse) - challSess := ctx.Session.Get("u2fChallenge") - idSess := ctx.Session.Get("twofaUid") - if challSess == nil || idSess == nil { - ctx.ServerError("UserSignIn", errors.New("not in U2F session")) - return - } - challenge := challSess.(*u2f.Challenge) - id := idSess.(int64) - regs, err := auth.GetU2FRegistrationsByUID(id) - if err != nil { - ctx.ServerError("UserSignIn", err) - return - } - for _, reg := range regs { - r, err := reg.Parse() - if err != nil { - log.Error("parsing u2f registration: %v", err) - continue - } - newCounter, authErr := r.Authenticate(*signResp, *challenge, reg.Counter) - if authErr == nil { - reg.Counter = newCounter - user, err := user_model.GetUserByID(id) - if err != nil { - ctx.ServerError("UserSignIn", err) - return - } - remember := ctx.Session.Get("twofaRemember").(bool) - if err := reg.UpdateCounter(); err != nil { - ctx.ServerError("UserSignIn", err) - return - } - - if ctx.Session.Get("linkAccount") != nil { - if err := externalaccount.LinkAccountFromStore(ctx.Session, user); err != nil { - ctx.ServerError("UserSignIn", err) - return - } - } - redirect := handleSignInFull(ctx, user, remember, false) - if ctx.Written() { - return - } - if redirect == "" { - redirect = setting.AppSubURL + "/" - } - ctx.PlainText(http.StatusOK, redirect) - return - } - } - ctx.Error(http.StatusUnauthorized) -} diff --git a/routers/web/auth/webauthn.go b/routers/web/auth/webauthn.go new file mode 100644 index 0000000000000..50dcb919e5414 --- /dev/null +++ b/routers/web/auth/webauthn.go @@ -0,0 +1,169 @@ +// Copyright 2018 The Gitea Authors. All rights reserved. +// Use of this source code is governed by a MIT-style +// license that can be found in the LICENSE file. + +package auth + +import ( + "encoding/base64" + "errors" + "net/http" + + "code.gitea.io/gitea/models/auth" + user_model "code.gitea.io/gitea/models/user" + wa "code.gitea.io/gitea/modules/auth/webauthn" + "code.gitea.io/gitea/modules/base" + "code.gitea.io/gitea/modules/context" + "code.gitea.io/gitea/modules/log" + "code.gitea.io/gitea/modules/setting" + "code.gitea.io/gitea/services/externalaccount" + + "github.com/duo-labs/webauthn/protocol" + "github.com/duo-labs/webauthn/webauthn" +) + +var tplWebAuthn base.TplName = "user/auth/webauthn" + +// WebAuthn shows the WebAuthn login page +func WebAuthn(ctx *context.Context) { + ctx.Data["Title"] = ctx.Tr("twofa") + + // Check auto-login. + if checkAutoLogin(ctx) { + return + } + + //Ensure user is in a 2FA session. + if ctx.Session.Get("twofaUid") == nil { + ctx.ServerError("UserSignIn", errors.New("not in WebAuthn session")) + return + } + + ctx.HTML(200, tplWebAuthn) +} + +// WebAuthnLoginAssertion submits a WebAuthn challenge to the browser +func WebAuthnLoginAssertion(ctx *context.Context) { + // Ensure user is in a WebAuthn session. + idSess, ok := ctx.Session.Get("twofaUid").(int64) + if !ok || idSess == 0 { + ctx.ServerError("UserSignIn", errors.New("not in WebAuthn session")) + return + } + + user, err := user_model.GetUserByID(idSess) + if err != nil { + ctx.ServerError("UserSignIn", err) + return + } + + exists, err := auth.ExistsWebAuthnCredentialsForUID(user.ID) + if err != nil { + ctx.ServerError("UserSignIn", err) + return + } + if !exists { + ctx.ServerError("UserSignIn", errors.New("no device registered")) + return + } + + assertion, sessionData, err := wa.WebAuthn.BeginLogin((*wa.User)(user), webauthn.WithAssertionExtensions(protocol.AuthenticationExtensions{ + "appid": setting.U2F.AppID, + })) + if err != nil { + ctx.ServerError("webauthn.BeginLogin", err) + return + } + + if err := ctx.Session.Set("webauthnAssertion", sessionData); err != nil { + ctx.ServerError("Session.Set", err) + return + } + ctx.JSON(http.StatusOK, assertion) +} + +// WebAuthnLoginAssertionPost validates the signature and logs the user in +func WebAuthnLoginAssertionPost(ctx *context.Context) { + idSess, ok := ctx.Session.Get("twofaUid").(int64) + sessionData, okData := ctx.Session.Get("webauthnAssertion").(*webauthn.SessionData) + if !ok || !okData || sessionData == nil || idSess == 0 { + ctx.ServerError("UserSignIn", errors.New("not in WebAuthn session")) + return + } + defer func() { + _ = ctx.Session.Delete("webauthnAssertion") + }() + + // Load the user from the db + user, err := user_model.GetUserByID(idSess) + if err != nil { + ctx.ServerError("UserSignIn", err) + return + } + + log.Trace("Finishing webauthn authentication with user: %s", user.Name) + + // Now we do the equivalent of webauthn.FinishLogin using a combination of our session data + // (from webauthnAssertion) and verify the provided request.0 + parsedResponse, err := protocol.ParseCredentialRequestResponse(ctx.Req) + if err != nil { + // Failed authentication attempt. + log.Info("Failed authentication attempt for %s from %s: %v", user.Name, ctx.RemoteAddr(), err) + ctx.Status(http.StatusForbidden) + return + } + + // Validate the parsed response. + cred, err := wa.WebAuthn.ValidateLogin((*wa.User)(user), *sessionData, parsedResponse) + if err != nil { + // Failed authentication attempt. + log.Info("Failed authentication attempt for %s from %s: %v", user.Name, ctx.RemoteAddr(), err) + ctx.Status(http.StatusForbidden) + return + } + + // Ensure that the credential wasn't cloned by checking if CloneWarning is set. + // (This is set if the sign counter is less than the one we have stored.) + if cred.Authenticator.CloneWarning { + log.Info("Failed authentication attempt for %s from %s: cloned credential", user.Name, ctx.RemoteAddr()) + ctx.Status(http.StatusForbidden) + return + } + + // Success! Get the credential and update the sign count with the new value we received. + dbCred, err := auth.GetWebAuthnCredentialByCredID(base64.RawStdEncoding.EncodeToString(cred.ID)) + if err != nil { + ctx.ServerError("GetWebAuthnCredentialByCredID", err) + return + } + + dbCred.SignCount = cred.Authenticator.SignCount + if err := dbCred.UpdateSignCount(); err != nil { + ctx.ServerError("UpdateSignCount", err) + return + } + + // Now handle account linking if that's requested + if ctx.Session.Get("linkAccount") != nil { + if err := externalaccount.LinkAccountFromStore(ctx.Session, user); err != nil { + ctx.ServerError("LinkAccountFromStore", err) + return + } + } + + remember := ctx.Session.Get("twofaRemember").(bool) + redirect := handleSignInFull(ctx, user, remember, false) + if redirect == "" { + redirect = setting.AppSubURL + "/" + } + _ = ctx.Session.Delete("twofaUid") + + // Finally check if the appid extension was used: + if value, ok := parsedResponse.ClientExtensionResults["appid"]; ok { + if appid, ok := value.(bool); ok && appid { + ctx.Flash.Error(ctx.Tr("webauthn_u2f_deprecated", dbCred.Name)) + } + } + + ctx.JSON(200, map[string]string{"redirect": redirect}) +} diff --git a/routers/web/user/setting/security/security.go b/routers/web/user/setting/security/security.go index 0ca6503f05a40..67bbbf8b317a2 100644 --- a/routers/web/user/setting/security/security.go +++ b/routers/web/user/setting/security/security.go @@ -63,11 +63,12 @@ func loadSecurityData(ctx *context.Context) { } ctx.Data["TOTPEnrolled"] = enrolled - ctx.Data["U2FRegistrations"], err = auth.GetU2FRegistrationsByUID(ctx.User.ID) + credentials, err := auth.GetWebAuthnCredentialsByUID(ctx.User.ID) if err != nil { - ctx.ServerError("GetU2FRegistrationsByUID", err) + ctx.ServerError("GetWebAuthnCredentialsByUID", err) return } + ctx.Data["WebAuthnCredentials"] = credentials tokens, err := models.ListAccessTokens(models.ListAccessTokensOptions{UserID: ctx.User.ID}) if err != nil { diff --git a/routers/web/user/setting/security/u2f.go b/routers/web/user/setting/security/u2f.go deleted file mode 100644 index dd35a893f447b..0000000000000 --- a/routers/web/user/setting/security/u2f.go +++ /dev/null @@ -1,111 +0,0 @@ -// Copyright 2018 The Gitea Authors. All rights reserved. -// Use of this source code is governed by a MIT-style -// license that can be found in the LICENSE file. - -package security - -import ( - "errors" - "net/http" - - "code.gitea.io/gitea/models/auth" - "code.gitea.io/gitea/modules/context" - "code.gitea.io/gitea/modules/log" - "code.gitea.io/gitea/modules/setting" - "code.gitea.io/gitea/modules/web" - "code.gitea.io/gitea/services/forms" - - "github.com/tstranex/u2f" -) - -// U2FRegister initializes the u2f registration procedure -func U2FRegister(ctx *context.Context) { - form := web.GetForm(ctx).(*forms.U2FRegistrationForm) - if form.Name == "" { - ctx.Error(http.StatusConflict) - return - } - challenge, err := u2f.NewChallenge(setting.U2F.AppID, setting.U2F.TrustedFacets) - if err != nil { - ctx.ServerError("NewChallenge", err) - return - } - if err := ctx.Session.Set("u2fChallenge", challenge); err != nil { - ctx.ServerError("Unable to set session key for u2fChallenge", err) - return - } - regs, err := auth.GetU2FRegistrationsByUID(ctx.User.ID) - if err != nil { - ctx.ServerError("GetU2FRegistrationsByUID", err) - return - } - for _, reg := range regs { - if reg.Name == form.Name { - ctx.Error(http.StatusConflict, "Name already taken") - return - } - } - if err := ctx.Session.Set("u2fName", form.Name); err != nil { - ctx.ServerError("Unable to set session key for u2fName", err) - return - } - // Here we're just going to try to release the session early - if err := ctx.Session.Release(); err != nil { - // we'll tolerate errors here as they *should* get saved elsewhere - log.Error("Unable to save changes to the session: %v", err) - } - ctx.JSON(http.StatusOK, u2f.NewWebRegisterRequest(challenge, regs.ToRegistrations())) -} - -// U2FRegisterPost receives the response of the security key -func U2FRegisterPost(ctx *context.Context) { - response := web.GetForm(ctx).(*u2f.RegisterResponse) - challSess := ctx.Session.Get("u2fChallenge") - u2fName := ctx.Session.Get("u2fName") - if challSess == nil || u2fName == nil { - ctx.ServerError("U2FRegisterPost", errors.New("not in U2F session")) - return - } - challenge := challSess.(*u2f.Challenge) - name := u2fName.(string) - config := &u2f.Config{ - // Chrome 66+ doesn't return the device's attestation - // certificate by default. - SkipAttestationVerify: true, - } - reg, err := u2f.Register(*response, *challenge, config) - if err != nil { - ctx.ServerError("u2f.Register", err) - return - } - if _, err = auth.CreateRegistration(ctx.User.ID, name, reg); err != nil { - ctx.ServerError("u2f.Register", err) - return - } - ctx.Status(200) -} - -// U2FDelete deletes an security key by id -func U2FDelete(ctx *context.Context) { - form := web.GetForm(ctx).(*forms.U2FDeleteForm) - reg, err := auth.GetU2FRegistrationByID(form.ID) - if err != nil { - if auth.IsErrU2FRegistrationNotExist(err) { - ctx.Status(200) - return - } - ctx.ServerError("GetU2FRegistrationByID", err) - return - } - if reg.UserID != ctx.User.ID { - ctx.Status(401) - return - } - if err := auth.DeleteRegistration(reg); err != nil { - ctx.ServerError("DeleteRegistration", err) - return - } - ctx.JSON(http.StatusOK, map[string]interface{}{ - "redirect": setting.AppSubURL + "/user/settings/security", - }) -} diff --git a/routers/web/user/setting/security/webauthn.go b/routers/web/user/setting/security/webauthn.go new file mode 100644 index 0000000000000..8d28de8c98459 --- /dev/null +++ b/routers/web/user/setting/security/webauthn.go @@ -0,0 +1,119 @@ +// Copyright 2018 The Gitea Authors. All rights reserved. +// Use of this source code is governed by a MIT-style +// license that can be found in the LICENSE file. + +package security + +import ( + "errors" + "net/http" + + "code.gitea.io/gitea/models/auth" + wa "code.gitea.io/gitea/modules/auth/webauthn" + "code.gitea.io/gitea/modules/context" + "code.gitea.io/gitea/modules/log" + "code.gitea.io/gitea/modules/setting" + "code.gitea.io/gitea/modules/web" + "code.gitea.io/gitea/services/forms" + + "github.com/duo-labs/webauthn/protocol" + "github.com/duo-labs/webauthn/webauthn" +) + +// WebAuthnRegister initializes the webauthn registration procedure +func WebAuthnRegister(ctx *context.Context) { + form := web.GetForm(ctx).(*forms.WebauthnRegistrationForm) + if form.Name == "" { + ctx.Error(http.StatusConflict) + return + } + + cred, err := auth.GetWebAuthnCredentialByName(ctx.User.ID, form.Name) + if err != nil && !auth.IsErrWebAuthnCredentialNotExist(err) { + ctx.ServerError("GetWebAuthnCredentialsByUID", err) + return + } + if cred != nil { + ctx.Error(http.StatusConflict, "Name already taken") + return + } + + _ = ctx.Session.Delete("registration") + if err := ctx.Session.Set("WebauthnName", form.Name); err != nil { + ctx.ServerError("Unable to set session key for WebauthnName", err) + return + } + + credentialOptions, sessionData, err := wa.WebAuthn.BeginRegistration((*wa.User)(ctx.User)) + if err != nil { + ctx.ServerError("Unable to BeginRegistration", err) + return + } + + // Save the session data as marshaled JSON + if err = ctx.Session.Set("registration", sessionData); err != nil { + ctx.ServerError("Unable to set session", err) + return + } + + ctx.JSON(http.StatusOK, credentialOptions) +} + +// WebauthnRegisterPost receives the response of the security key +func WebauthnRegisterPost(ctx *context.Context) { + name, ok := ctx.Session.Get("WebauthnName").(string) + if !ok || name == "" { + ctx.ServerError("Get WebauthnName", errors.New("no WebauthnName")) + return + } + + // Load the session data + sessionData, ok := ctx.Session.Get("registration").(*webauthn.SessionData) + if !ok || sessionData == nil { + ctx.ServerError("Get registration", errors.New("no registration")) + return + } + defer func() { + _ = ctx.Session.Delete("registration") + }() + + // Verify that the challenge succeeded + cred, err := wa.WebAuthn.FinishRegistration((*wa.User)(ctx.User), *sessionData, ctx.Req) + if err != nil { + if pErr, ok := err.(*protocol.Error); ok { + log.Error("Unable to finish registration due to error: %v\nDevInfo: %s", pErr, pErr.DevInfo) + } + ctx.ServerError("CreateCredential", err) + return + } + + dbCred, err := auth.GetWebAuthnCredentialByName(ctx.User.ID, name) + if err != nil && !auth.IsErrWebAuthnCredentialNotExist(err) { + ctx.ServerError("GetWebAuthnCredentialsByUID", err) + return + } + if dbCred != nil { + ctx.Error(http.StatusConflict, "Name already taken") + return + } + + // Create the credential + _, err = auth.CreateCredential(ctx.User.ID, name, cred) + if err != nil { + ctx.ServerError("CreateCredential", err) + return + } + ctx.JSON(http.StatusCreated, cred) +} + +// WebauthnDelete deletes an security key by id +func WebauthnDelete(ctx *context.Context) { + form := web.GetForm(ctx).(*forms.WebauthnDeleteForm) + if _, err := auth.DeleteCredential(form.ID, ctx.User.ID); err != nil { + ctx.ServerError("GetWebAuthnCredentialByID", err) + return + } + ctx.JSON(http.StatusOK, map[string]interface{}{ + "redirect": setting.AppSubURL + "/user/settings/security", + }) +} diff --git a/routers/web/web.go b/routers/web/web.go index 8abdf7c61fb99..55a64ee7d5dde 100644 --- a/routers/web/web.go +++ b/routers/web/web.go @@ -5,7 +5,6 @@ package web import ( - "encoding/gob" "net/http" "os" "path" @@ -45,7 +44,6 @@ import ( "github.com/go-chi/chi/v5/middleware" "github.com/go-chi/cors" "github.com/prometheus/client_golang/prometheus" - "github.com/tstranex/u2f" ) const ( @@ -99,8 +97,6 @@ func Routes(sessioner func(http.Handler) http.Handler) *web.Route { http.Redirect(w, req, path.Join(setting.StaticURLPrefix, "/assets/img/apple-touch-icon.png"), 301) }) - gob.Register(&u2f.Challenge{}) - common := []interface{}{} if setting.EnableGzip { @@ -290,11 +286,10 @@ func RegisterRoutes(m *web.Route) { m.Get("/scratch", auth.TwoFactorScratch) m.Post("/scratch", bindIgnErr(forms.TwoFactorScratchAuthForm{}), auth.TwoFactorScratchPost) }) - m.Group("/u2f", func() { - m.Get("", auth.U2F) - m.Get("/challenge", auth.U2FChallenge) - m.Post("/sign", bindIgnErr(u2f.SignResponse{}), auth.U2FSign) - + m.Group("/webauthn", func() { + m.Get("", auth.WebAuthn) + m.Get("/assertion", auth.WebAuthnLoginAssertion) + m.Post("/assertion", auth.WebAuthnLoginAssertionPost) }) }, reqSignOut) @@ -337,10 +332,10 @@ func RegisterRoutes(m *web.Route) { m.Get("/enroll", security.EnrollTwoFactor) m.Post("/enroll", bindIgnErr(forms.TwoFactorAuthForm{}), security.EnrollTwoFactorPost) }) - m.Group("/u2f", func() { - m.Post("/request_register", bindIgnErr(forms.U2FRegistrationForm{}), security.U2FRegister) - m.Post("/register", bindIgnErr(u2f.RegisterResponse{}), security.U2FRegisterPost) - m.Post("/delete", bindIgnErr(forms.U2FDeleteForm{}), security.U2FDelete) + m.Group("/webauthn", func() { + m.Post("/request_register", bindIgnErr(forms.WebauthnRegistrationForm{}), security.WebAuthnRegister) + m.Post("/register", security.WebauthnRegisterPost) + m.Post("/delete", bindIgnErr(forms.WebauthnDeleteForm{}), security.WebauthnDelete) }) m.Group("/openid", func() { m.Post("", bindIgnErr(forms.AddOpenIDForm{}), security.OpenIDPost) diff --git a/services/auth/auth.go b/services/auth/auth.go index ceb9f4c5d87db..3eb7f027d2e77 100644 --- a/services/auth/auth.go +++ b/services/auth/auth.go @@ -14,6 +14,7 @@ import ( "code.gitea.io/gitea/models/db" user_model "code.gitea.io/gitea/models/user" + "code.gitea.io/gitea/modules/auth/webauthn" "code.gitea.io/gitea/modules/log" "code.gitea.io/gitea/modules/session" "code.gitea.io/gitea/modules/setting" @@ -69,6 +70,8 @@ func Init() { log.Error("Could not initialize '%s' auth method, error: %s", reflect.TypeOf(method).String(), err) } } + + webauthn.Init() } // Free should be called exactly once when the application is terminating to allow Auth plugins @@ -121,7 +124,7 @@ func handleSignIn(resp http.ResponseWriter, req *http.Request, sess SessionStore _ = sess.Delete("openid_determined_username") _ = sess.Delete("twofaUid") _ = sess.Delete("twofaRemember") - _ = sess.Delete("u2fChallenge") + _ = sess.Delete("webauthnAssertion") _ = sess.Delete("linkAccount") err = sess.Set("uid", user.ID) if err != nil { diff --git a/services/auth/source/oauth2/jwtsigningkey.go b/services/auth/source/oauth2/jwtsigningkey.go index 3102be5f143a2..187c6999e0c44 100644 --- a/services/auth/source/oauth2/jwtsigningkey.go +++ b/services/auth/source/oauth2/jwtsigningkey.go @@ -25,7 +25,7 @@ import ( "code.gitea.io/gitea/modules/setting" "code.gitea.io/gitea/modules/util" - "github.com/golang-jwt/jwt" + "github.com/golang-jwt/jwt/v4" ini "gopkg.in/ini.v1" ) diff --git a/services/auth/source/oauth2/token.go b/services/auth/source/oauth2/token.go index c9a45340a18d8..944b8da387cfd 100644 --- a/services/auth/source/oauth2/token.go +++ b/services/auth/source/oauth2/token.go @@ -10,7 +10,7 @@ import ( "code.gitea.io/gitea/modules/timeutil" - "github.com/golang-jwt/jwt" + "github.com/golang-jwt/jwt/v4" ) // ___________ __ @@ -37,6 +37,7 @@ type Token struct { GrantID int64 `json:"gnt"` Type TokenType `json:"tt"` Counter int64 `json:"cnt,omitempty"` + // FIXME: Migrate to registered claims jwt.StandardClaims } @@ -69,6 +70,7 @@ func (token *Token) SignToken(signingKey JWTSigningKey) (string, error) { // OIDCToken represents an OpenID Connect id_token type OIDCToken struct { + // FIXME: Migrate to RegisteredClaims jwt.StandardClaims Nonce string `json:"nonce,omitempty"` diff --git a/services/forms/user_form.go b/services/forms/user_form.go index 88e50762f8425..a886e89f87c4d 100644 --- a/services/forms/user_form.go +++ b/services/forms/user_form.go @@ -409,24 +409,24 @@ func (f *TwoFactorScratchAuthForm) Validate(req *http.Request, errs binding.Erro return middleware.Validate(errs, ctx.Data, f, ctx.Locale) } -// U2FRegistrationForm for reserving an U2F name -type U2FRegistrationForm struct { +// WebauthnRegistrationForm for reserving an WebAuthn name +type WebauthnRegistrationForm struct { Name string `binding:"Required"` } // Validate validates the fields -func (f *U2FRegistrationForm) Validate(req *http.Request, errs binding.Errors) binding.Errors { +func (f *WebauthnRegistrationForm) Validate(req *http.Request, errs binding.Errors) binding.Errors { ctx := context.GetContext(req) return middleware.Validate(errs, ctx.Data, f, ctx.Locale) } -// U2FDeleteForm for deleting U2F keys -type U2FDeleteForm struct { +// WebauthnDeleteForm for deleting WebAuthn keys +type WebauthnDeleteForm struct { ID int64 `binding:"Required"` } // Validate validates the fields -func (f *U2FDeleteForm) Validate(req *http.Request, errs binding.Errors) binding.Errors { +func (f *WebauthnDeleteForm) Validate(req *http.Request, errs binding.Errors) binding.Errors { ctx := context.GetContext(req) return middleware.Validate(errs, ctx.Data, f, ctx.Locale) } diff --git a/services/lfs/server.go b/services/lfs/server.go index df0a8bd39a3f3..25882928a2c7e 100644 --- a/services/lfs/server.go +++ b/services/lfs/server.go @@ -30,7 +30,7 @@ import ( "code.gitea.io/gitea/modules/setting" "code.gitea.io/gitea/modules/storage" - "github.com/golang-jwt/jwt" + "github.com/golang-jwt/jwt/v4" ) // requestContext contain variables from the HTTP request. @@ -45,6 +45,7 @@ type Claims struct { RepoID int64 Op string UserID int64 + // FIXME: Migrate to RegisteredClaims jwt.StandardClaims } diff --git a/templates/base/footer.tmpl b/templates/base/footer.tmpl index 122b3b46b4e96..1aabfa2f5c644 100644 --- a/templates/base/footer.tmpl +++ b/templates/base/footer.tmpl @@ -14,9 +14,6 @@ {{template "base/footer_content" .}} -{{if .RequireU2F}} - -{{end}} {{if .EnableCaptcha}} {{if eq .CaptchaType "recaptcha"}} diff --git a/templates/user/auth/u2f.tmpl b/templates/user/auth/u2f.tmpl deleted file mode 100644 index 8b04866bbcae7..0000000000000 --- a/templates/user/auth/u2f.tmpl +++ /dev/null @@ -1,24 +0,0 @@ -{{template "base/head" .}} - -{{template "user/auth/u2f_error" .}} -{{template "base/footer" .}} diff --git a/templates/user/auth/u2f_error.tmpl b/templates/user/auth/u2f_error.tmpl deleted file mode 100644 index 5bda372fe8caa..0000000000000 --- a/templates/user/auth/u2f_error.tmpl +++ /dev/null @@ -1,32 +0,0 @@ - diff --git a/templates/user/auth/webauthn.tmpl b/templates/user/auth/webauthn.tmpl new file mode 100644 index 0000000000000..17c9a5f580e60 --- /dev/null +++ b/templates/user/auth/webauthn.tmpl @@ -0,0 +1,22 @@ +{{template "base/head" .}} + +{{template "user/auth/webauthn_error" .}} +{{template "base/footer" .}} diff --git a/templates/user/auth/webauthn_error.tmpl b/templates/user/auth/webauthn_error.tmpl new file mode 100644 index 0000000000000..be46ee42a0332 --- /dev/null +++ b/templates/user/auth/webauthn_error.tmpl @@ -0,0 +1,22 @@ + diff --git a/templates/user/settings/security/security.tmpl b/templates/user/settings/security/security.tmpl index 6d5f38ab7076d..d93be9f640168 100644 --- a/templates/user/settings/security/security.tmpl +++ b/templates/user/settings/security/security.tmpl @@ -4,7 +4,7 @@
{{template "base/alert" .}} {{template "user/settings/security/twofa" .}} - {{template "user/settings/security/u2f" .}} + {{template "user/settings/security/webauthn" .}} {{template "user/settings/security/accountlinks" .}} {{if .EnableOpenIDSignIn}} {{template "user/settings/security/openid" .}} diff --git a/templates/user/settings/security/u2f.tmpl b/templates/user/settings/security/webauthn.tmpl similarity index 58% rename from templates/user/settings/security/u2f.tmpl rename to templates/user/settings/security/webauthn.tmpl index 97e76b6da2ac0..be8f8cccda667 100644 --- a/templates/user/settings/security/u2f.tmpl +++ b/templates/user/settings/security/webauthn.tmpl @@ -1,51 +1,52 @@

-{{.i18n.Tr "settings.u2f"}} +{{.i18n.Tr "settings.webauthn"}}

-

{{.i18n.Tr "settings.u2f_desc" | Str2html}}

+

{{.i18n.Tr "settings.webauthn_desc" | Str2html}}

- {{range .U2FRegistrations}} + {{range .WebAuthnCredentials}}
-
{{.Name}}
+ {{TimeSinceUnix .CreatedUnix $.Lang}}
{{end}}
{{.CsrfTokenHtml}}
- +
- +
-{{template "user/auth/u2f_error" .}} +{{template "user/auth/webauthn_error" .}} diff --git a/vendor/github.com/cloudflare/cfssl/LICENSE b/vendor/github.com/cloudflare/cfssl/LICENSE new file mode 100644 index 0000000000000..bc5841fa55973 --- /dev/null +++ b/vendor/github.com/cloudflare/cfssl/LICENSE @@ -0,0 +1,24 @@ +Copyright (c) 2014 CloudFlare Inc. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions +are met: + +Redistributions of source code must retain the above copyright notice, +this list of conditions and the following disclaimer. + +Redistributions in binary form must reproduce the above copyright notice, +this list of conditions and the following disclaimer in the documentation +and/or other materials provided with the distribution. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED +TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR +PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF +LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING +NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS +SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/vendor/github.com/cloudflare/cfssl/crypto/pkcs7/pkcs7.go b/vendor/github.com/cloudflare/cfssl/crypto/pkcs7/pkcs7.go new file mode 100644 index 0000000000000..d57daf51b5e50 --- /dev/null +++ b/vendor/github.com/cloudflare/cfssl/crypto/pkcs7/pkcs7.go @@ -0,0 +1,188 @@ +// Package pkcs7 implements the subset of the CMS PKCS #7 datatype that is typically +// used to package certificates and CRLs. Using openssl, every certificate converted +// to PKCS #7 format from another encoding such as PEM conforms to this implementation. +// reference: https://www.openssl.org/docs/man1.1.0/apps/crl2pkcs7.html +// +// PKCS #7 Data type, reference: https://tools.ietf.org/html/rfc2315 +// +// The full pkcs#7 cryptographic message syntax allows for cryptographic enhancements, +// for example data can be encrypted and signed and then packaged through pkcs#7 to be +// sent over a network and then verified and decrypted. It is asn1, and the type of +// PKCS #7 ContentInfo, which comprises the PKCS #7 structure, is: +// +// ContentInfo ::= SEQUENCE { +// contentType ContentType, +// content [0] EXPLICIT ANY DEFINED BY contentType OPTIONAL +// } +// +// There are 6 possible ContentTypes, data, signedData, envelopedData, +// signedAndEnvelopedData, digestedData, and encryptedData. Here signedData, Data, and encrypted +// Data are implemented, as the degenerate case of signedData without a signature is the typical +// format for transferring certificates and CRLS, and Data and encryptedData are used in PKCS #12 +// formats. +// The ContentType signedData has the form: +// +// +// signedData ::= SEQUENCE { +// version Version, +// digestAlgorithms DigestAlgorithmIdentifiers, +// contentInfo ContentInfo, +// certificates [0] IMPLICIT ExtendedCertificatesAndCertificates OPTIONAL +// crls [1] IMPLICIT CertificateRevocationLists OPTIONAL, +// signerInfos SignerInfos +// } +// +// As of yet signerInfos and digestAlgorithms are not parsed, as they are not relevant to +// this system's use of PKCS #7 data. Version is an integer type, note that PKCS #7 is +// recursive, this second layer of ContentInfo is similar ignored for our degenerate +// usage. The ExtendedCertificatesAndCertificates type consists of a sequence of choices +// between PKCS #6 extended certificates and x509 certificates. Any sequence consisting +// of any number of extended certificates is not yet supported in this implementation. +// +// The ContentType Data is simply a raw octet string and is parsed directly into a Go []byte slice. +// +// The ContentType encryptedData is the most complicated and its form can be gathered by +// the go type below. It essentially contains a raw octet string of encrypted data and an +// algorithm identifier for use in decrypting this data. +package pkcs7 + +import ( + "crypto/x509" + "crypto/x509/pkix" + "encoding/asn1" + "errors" + + cferr "github.com/cloudflare/cfssl/errors" +) + +// Types used for asn1 Unmarshaling. + +type signedData struct { + Version int + DigestAlgorithms asn1.RawValue + ContentInfo asn1.RawValue + Certificates asn1.RawValue `asn1:"optional" asn1:"tag:0"` + Crls asn1.RawValue `asn1:"optional"` + SignerInfos asn1.RawValue +} + +type initPKCS7 struct { + Raw asn1.RawContent + ContentType asn1.ObjectIdentifier + Content asn1.RawValue `asn1:"tag:0,explicit,optional"` +} + +// Object identifier strings of the three implemented PKCS7 types. +const ( + ObjIDData = "1.2.840.113549.1.7.1" + ObjIDSignedData = "1.2.840.113549.1.7.2" + ObjIDEncryptedData = "1.2.840.113549.1.7.6" +) + +// PKCS7 represents the ASN1 PKCS #7 Content type. It contains one of three +// possible types of Content objects, as denoted by the object identifier in +// the ContentInfo field, the other two being nil. SignedData +// is the degenerate SignedData Content info without signature used +// to hold certificates and crls. Data is raw bytes, and EncryptedData +// is as defined in PKCS #7 standard. +type PKCS7 struct { + Raw asn1.RawContent + ContentInfo string + Content Content +} + +// Content implements three of the six possible PKCS7 data types. Only one is non-nil. +type Content struct { + Data []byte + SignedData SignedData + EncryptedData EncryptedData +} + +// SignedData defines the typical carrier of certificates and crls. +type SignedData struct { + Raw asn1.RawContent + Version int + Certificates []*x509.Certificate + Crl *pkix.CertificateList +} + +// Data contains raw bytes. Used as a subtype in PKCS12. +type Data struct { + Bytes []byte +} + +// EncryptedData contains encrypted data. Used as a subtype in PKCS12. +type EncryptedData struct { + Raw asn1.RawContent + Version int + EncryptedContentInfo EncryptedContentInfo +} + +// EncryptedContentInfo is a subtype of PKCS7EncryptedData. +type EncryptedContentInfo struct { + Raw asn1.RawContent + ContentType asn1.ObjectIdentifier + ContentEncryptionAlgorithm pkix.AlgorithmIdentifier + EncryptedContent []byte `asn1:"tag:0,optional"` +} + +// ParsePKCS7 attempts to parse the DER encoded bytes of a +// PKCS7 structure. +func ParsePKCS7(raw []byte) (msg *PKCS7, err error) { + + var pkcs7 initPKCS7 + _, err = asn1.Unmarshal(raw, &pkcs7) + if err != nil { + return nil, cferr.Wrap(cferr.CertificateError, cferr.ParseFailed, err) + } + + msg = new(PKCS7) + msg.Raw = pkcs7.Raw + msg.ContentInfo = pkcs7.ContentType.String() + switch { + case msg.ContentInfo == ObjIDData: + msg.ContentInfo = "Data" + _, err = asn1.Unmarshal(pkcs7.Content.Bytes, &msg.Content.Data) + if err != nil { + return nil, cferr.Wrap(cferr.CertificateError, cferr.ParseFailed, err) + } + case msg.ContentInfo == ObjIDSignedData: + msg.ContentInfo = "SignedData" + var signedData signedData + _, err = asn1.Unmarshal(pkcs7.Content.Bytes, &signedData) + if err != nil { + return nil, cferr.Wrap(cferr.CertificateError, cferr.ParseFailed, err) + } + if len(signedData.Certificates.Bytes) != 0 { + msg.Content.SignedData.Certificates, err = x509.ParseCertificates(signedData.Certificates.Bytes) + if err != nil { + return nil, cferr.Wrap(cferr.CertificateError, cferr.ParseFailed, err) + } + } + if len(signedData.Crls.Bytes) != 0 { + msg.Content.SignedData.Crl, err = x509.ParseDERCRL(signedData.Crls.Bytes) + if err != nil { + return nil, cferr.Wrap(cferr.CertificateError, cferr.ParseFailed, err) + } + } + msg.Content.SignedData.Version = signedData.Version + msg.Content.SignedData.Raw = pkcs7.Content.Bytes + case msg.ContentInfo == ObjIDEncryptedData: + msg.ContentInfo = "EncryptedData" + var encryptedData EncryptedData + _, err = asn1.Unmarshal(pkcs7.Content.Bytes, &encryptedData) + if err != nil { + return nil, cferr.Wrap(cferr.CertificateError, cferr.ParseFailed, err) + } + if encryptedData.Version != 0 { + return nil, cferr.Wrap(cferr.CertificateError, cferr.ParseFailed, errors.New("Only support for PKCS #7 encryptedData version 0")) + } + msg.Content.EncryptedData = encryptedData + + default: + return nil, cferr.Wrap(cferr.CertificateError, cferr.ParseFailed, errors.New("Attempt to parse PKCS# 7 Content not of type data, signed data or encrypted data")) + } + + return msg, nil + +} diff --git a/vendor/github.com/cloudflare/cfssl/errors/doc.go b/vendor/github.com/cloudflare/cfssl/errors/doc.go new file mode 100644 index 0000000000000..1910e2662f93e --- /dev/null +++ b/vendor/github.com/cloudflare/cfssl/errors/doc.go @@ -0,0 +1,46 @@ +/* +Package errors provides error types returned in CF SSL. + +1. Type Error is intended for errors produced by CF SSL packages. +It formats to a json object that consists of an error message and a 4-digit code for error reasoning. + +Example: {"code":1002, "message": "Failed to decode certificate"} + +The index of codes are listed below: + 1XXX: CertificateError + 1000: Unknown + 1001: ReadFailed + 1002: DecodeFailed + 1003: ParseFailed + 1100: SelfSigned + 12XX: VerifyFailed + 121X: CertificateInvalid + 1210: NotAuthorizedToSign + 1211: Expired + 1212: CANotAuthorizedForThisName + 1213: TooManyIntermediates + 1214: IncompatibleUsage + 1220: UnknownAuthority + 2XXX: PrivatekeyError + 2000: Unknown + 2001: ReadFailed + 2002: DecodeFailed + 2003: ParseFailed + 2100: Encrypted + 2200: NotRSA + 2300: KeyMismatch + 2400: GenerationFailed + 2500: Unavailable + 3XXX: IntermediatesError + 4XXX: RootError + 5XXX: PolicyError + 5100: NoKeyUsages + 5200: InvalidPolicy + 5300: InvalidRequest + 5400: UnknownProfile + 6XXX: DialError + +2. Type HttpError is intended for CF SSL API to consume. It contains a HTTP status code that will be read and returned +by the API server. +*/ +package errors diff --git a/vendor/github.com/cloudflare/cfssl/errors/error.go b/vendor/github.com/cloudflare/cfssl/errors/error.go new file mode 100644 index 0000000000000..9715a7cfbd252 --- /dev/null +++ b/vendor/github.com/cloudflare/cfssl/errors/error.go @@ -0,0 +1,438 @@ +package errors + +import ( + "crypto/x509" + "encoding/json" + "fmt" +) + +// Error is the error type usually returned by functions in CF SSL package. +// It contains a 4-digit error code where the most significant digit +// describes the category where the error occurred and the rest 3 digits +// describe the specific error reason. +type Error struct { + ErrorCode int `json:"code"` + Message string `json:"message"` +} + +// Category is the most significant digit of the error code. +type Category int + +// Reason is the last 3 digits of the error code. +type Reason int + +const ( + // Success indicates no error occurred. + Success Category = 1000 * iota // 0XXX + + // CertificateError indicates a fault in a certificate. + CertificateError // 1XXX + + // PrivateKeyError indicates a fault in a private key. + PrivateKeyError // 2XXX + + // IntermediatesError indicates a fault in an intermediate. + IntermediatesError // 3XXX + + // RootError indicates a fault in a root. + RootError // 4XXX + + // PolicyError indicates an error arising from a malformed or + // non-existent policy, or a breach of policy. + PolicyError // 5XXX + + // DialError indicates a network fault. + DialError // 6XXX + + // APIClientError indicates a problem with the API client. + APIClientError // 7XXX + + // OCSPError indicates a problem with OCSP signing + OCSPError // 8XXX + + // CSRError indicates a problem with CSR parsing + CSRError // 9XXX + + // CTError indicates a problem with the certificate transparency process + CTError // 10XXX + + // CertStoreError indicates a problem with the certificate store + CertStoreError // 11XXX +) + +// None is a non-specified error. +const ( + None Reason = iota +) + +// Warning code for a success +const ( + BundleExpiringBit int = 1 << iota // 0x01 + BundleNotUbiquitousBit // 0x02 +) + +// Parsing errors +const ( + Unknown Reason = iota // X000 + ReadFailed // X001 + DecodeFailed // X002 + ParseFailed // X003 +) + +// The following represent certificate non-parsing errors, and must be +// specified along with CertificateError. +const ( + // SelfSigned indicates that a certificate is self-signed and + // cannot be used in the manner being attempted. + SelfSigned Reason = 100 * (iota + 1) // Code 11XX + + // VerifyFailed is an X.509 verification failure. The least two + // significant digits of 12XX is determined as the actual x509 + // error is examined. + VerifyFailed // Code 12XX + + // BadRequest indicates that the certificate request is invalid. + BadRequest // Code 13XX + + // MissingSerial indicates that the profile specified + // 'ClientProvidesSerialNumbers', but the SignRequest did not include a serial + // number. + MissingSerial // Code 14XX +) + +const ( + certificateInvalid = 10 * (iota + 1) //121X + unknownAuthority //122x +) + +// The following represent private-key non-parsing errors, and must be +// specified with PrivateKeyError. +const ( + // Encrypted indicates that the private key is a PKCS #8 encrypted + // private key. At this time, CFSSL does not support decrypting + // these keys. + Encrypted Reason = 100 * (iota + 1) //21XX + + // NotRSAOrECC indicates that they key is not an RSA or ECC + // private key; these are the only two private key types supported + // at this time by CFSSL. + NotRSAOrECC //22XX + + // KeyMismatch indicates that the private key does not match + // the public key or certificate being presented with the key. + KeyMismatch //23XX + + // GenerationFailed indicates that a private key could not + // be generated. + GenerationFailed //24XX + + // Unavailable indicates that a private key mechanism (such as + // PKCS #11) was requested but support for that mechanism is + // not available. + Unavailable +) + +// The following are policy-related non-parsing errors, and must be +// specified along with PolicyError. +const ( + // NoKeyUsages indicates that the profile does not permit any + // key usages for the certificate. + NoKeyUsages Reason = 100 * (iota + 1) // 51XX + + // InvalidPolicy indicates that policy being requested is not + // a valid policy or does not exist. + InvalidPolicy // 52XX + + // InvalidRequest indicates a certificate request violated the + // constraints of the policy being applied to the request. + InvalidRequest // 53XX + + // UnknownProfile indicates that the profile does not exist. + UnknownProfile // 54XX + + UnmatchedWhitelist // 55xx +) + +// The following are API client related errors, and should be +// specified with APIClientError. +const ( + // AuthenticationFailure occurs when the client is unable + // to obtain an authentication token for the request. + AuthenticationFailure Reason = 100 * (iota + 1) + + // JSONError wraps an encoding/json error. + JSONError + + // IOError wraps an io/ioutil error. + IOError + + // ClientHTTPError wraps a net/http error. + ClientHTTPError + + // ServerRequestFailed covers any other failures from the API + // client. + ServerRequestFailed +) + +// The following are OCSP related errors, and should be +// specified with OCSPError +const ( + // IssuerMismatch ocurs when the certificate in the OCSP signing + // request was not issued by the CA that this responder responds for. + IssuerMismatch Reason = 100 * (iota + 1) // 81XX + + // InvalidStatus occurs when the OCSP signing requests includes an + // invalid value for the certificate status. + InvalidStatus +) + +// Certificate transparency related errors specified with CTError +const ( + // PrecertSubmissionFailed occurs when submitting a precertificate to + // a log server fails + PrecertSubmissionFailed = 100 * (iota + 1) + // CTClientConstructionFailed occurs when the construction of a new + // github.com/google/certificate-transparency client fails. + CTClientConstructionFailed + // PrecertMissingPoison occurs when a precert is passed to SignFromPrecert + // and is missing the CT poison extension. + PrecertMissingPoison + // PrecertInvalidPoison occurs when a precert is passed to SignFromPrecert + // and has a invalid CT poison extension value or the extension is not + // critical. + PrecertInvalidPoison +) + +// Certificate persistence related errors specified with CertStoreError +const ( + // InsertionFailed occurs when a SQL insert query failes to complete. + InsertionFailed = 100 * (iota + 1) + // RecordNotFound occurs when a SQL query targeting on one unique + // record failes to update the specified row in the table. + RecordNotFound +) + +// The error interface implementation, which formats to a JSON object string. +func (e *Error) Error() string { + marshaled, err := json.Marshal(e) + if err != nil { + panic(err) + } + return string(marshaled) + +} + +// New returns an error that contains an error code and message derived from +// the given category, reason. Currently, to avoid confusion, it is not +// allowed to create an error of category Success +func New(category Category, reason Reason) *Error { + errorCode := int(category) + int(reason) + var msg string + switch category { + case OCSPError: + switch reason { + case ReadFailed: + msg = "No certificate provided" + case IssuerMismatch: + msg = "Certificate not issued by this issuer" + case InvalidStatus: + msg = "Invalid revocation status" + } + case CertificateError: + switch reason { + case Unknown: + msg = "Unknown certificate error" + case ReadFailed: + msg = "Failed to read certificate" + case DecodeFailed: + msg = "Failed to decode certificate" + case ParseFailed: + msg = "Failed to parse certificate" + case SelfSigned: + msg = "Certificate is self signed" + case VerifyFailed: + msg = "Unable to verify certificate" + case BadRequest: + msg = "Invalid certificate request" + case MissingSerial: + msg = "Missing serial number in request" + default: + panic(fmt.Sprintf("Unsupported CFSSL error reason %d under category CertificateError.", + reason)) + + } + case PrivateKeyError: + switch reason { + case Unknown: + msg = "Unknown private key error" + case ReadFailed: + msg = "Failed to read private key" + case DecodeFailed: + msg = "Failed to decode private key" + case ParseFailed: + msg = "Failed to parse private key" + case Encrypted: + msg = "Private key is encrypted." + case NotRSAOrECC: + msg = "Private key algorithm is not RSA or ECC" + case KeyMismatch: + msg = "Private key does not match public key" + case GenerationFailed: + msg = "Failed to new private key" + case Unavailable: + msg = "Private key is unavailable" + default: + panic(fmt.Sprintf("Unsupported CFSSL error reason %d under category PrivateKeyError.", + reason)) + } + case IntermediatesError: + switch reason { + case Unknown: + msg = "Unknown intermediate certificate error" + case ReadFailed: + msg = "Failed to read intermediate certificate" + case DecodeFailed: + msg = "Failed to decode intermediate certificate" + case ParseFailed: + msg = "Failed to parse intermediate certificate" + default: + panic(fmt.Sprintf("Unsupported CFSSL error reason %d under category IntermediatesError.", + reason)) + } + case RootError: + switch reason { + case Unknown: + msg = "Unknown root certificate error" + case ReadFailed: + msg = "Failed to read root certificate" + case DecodeFailed: + msg = "Failed to decode root certificate" + case ParseFailed: + msg = "Failed to parse root certificate" + default: + panic(fmt.Sprintf("Unsupported CFSSL error reason %d under category RootError.", + reason)) + } + case PolicyError: + switch reason { + case Unknown: + msg = "Unknown policy error" + case NoKeyUsages: + msg = "Invalid policy: no key usage available" + case InvalidPolicy: + msg = "Invalid or unknown policy" + case InvalidRequest: + msg = "Policy violation request" + case UnknownProfile: + msg = "Unknown policy profile" + case UnmatchedWhitelist: + msg = "Request does not match policy whitelist" + default: + panic(fmt.Sprintf("Unsupported CFSSL error reason %d under category PolicyError.", + reason)) + } + case DialError: + switch reason { + case Unknown: + msg = "Failed to dial remote server" + default: + panic(fmt.Sprintf("Unsupported CFSSL error reason %d under category DialError.", + reason)) + } + case APIClientError: + switch reason { + case AuthenticationFailure: + msg = "API client authentication failure" + case JSONError: + msg = "API client JSON config error" + case ClientHTTPError: + msg = "API client HTTP error" + case IOError: + msg = "API client IO error" + case ServerRequestFailed: + msg = "API client error: Server request failed" + default: + panic(fmt.Sprintf("Unsupported CFSSL error reason %d under category APIClientError.", + reason)) + } + case CSRError: + switch reason { + case Unknown: + msg = "CSR parsing failed due to unknown error" + case ReadFailed: + msg = "CSR file read failed" + case ParseFailed: + msg = "CSR Parsing failed" + case DecodeFailed: + msg = "CSR Decode failed" + case BadRequest: + msg = "CSR Bad request" + default: + panic(fmt.Sprintf("Unsupported CF-SSL error reason %d under category APIClientError.", reason)) + } + case CTError: + switch reason { + case Unknown: + msg = "Certificate transparency parsing failed due to unknown error" + case PrecertSubmissionFailed: + msg = "Certificate transparency precertificate submission failed" + case PrecertMissingPoison: + msg = "Precertificate is missing CT poison extension" + case PrecertInvalidPoison: + msg = "Precertificate contains an invalid CT poison extension" + default: + panic(fmt.Sprintf("Unsupported CF-SSL error reason %d under category CTError.", reason)) + } + case CertStoreError: + switch reason { + case Unknown: + msg = "Certificate store action failed due to unknown error" + default: + panic(fmt.Sprintf("Unsupported CF-SSL error reason %d under category CertStoreError.", reason)) + } + + default: + panic(fmt.Sprintf("Unsupported CFSSL error type: %d.", + category)) + } + return &Error{ErrorCode: errorCode, Message: msg} +} + +// Wrap returns an error that contains the given error and an error code derived from +// the given category, reason and the error. Currently, to avoid confusion, it is not +// allowed to create an error of category Success +func Wrap(category Category, reason Reason, err error) *Error { + errorCode := int(category) + int(reason) + if err == nil { + panic("Wrap needs a supplied error to initialize.") + } + + // do not double wrap a error + switch err.(type) { + case *Error: + panic("Unable to wrap a wrapped error.") + } + + switch category { + case CertificateError: + // given VerifyFailed , report the status with more detailed status code + // for some certificate errors we care. + if reason == VerifyFailed { + switch errorType := err.(type) { + case x509.CertificateInvalidError: + errorCode += certificateInvalid + int(errorType.Reason) + case x509.UnknownAuthorityError: + errorCode += unknownAuthority + } + } + case PrivateKeyError, IntermediatesError, RootError, PolicyError, DialError, + APIClientError, CSRError, CTError, CertStoreError, OCSPError: + // no-op, just use the error + default: + panic(fmt.Sprintf("Unsupported CFSSL error type: %d.", + category)) + } + + return &Error{ErrorCode: errorCode, Message: err.Error()} + +} diff --git a/vendor/github.com/cloudflare/cfssl/errors/http.go b/vendor/github.com/cloudflare/cfssl/errors/http.go new file mode 100644 index 0000000000000..c9c0a39c7031f --- /dev/null +++ b/vendor/github.com/cloudflare/cfssl/errors/http.go @@ -0,0 +1,47 @@ +package errors + +import ( + "errors" + "net/http" +) + +// HTTPError is an augmented error with a HTTP status code. +type HTTPError struct { + StatusCode int + error +} + +// Error implements the error interface. +func (e *HTTPError) Error() string { + return e.error.Error() +} + +// NewMethodNotAllowed returns an appropriate error in the case that +// an HTTP client uses an invalid method (i.e. a GET in place of a POST) +// on an API endpoint. +func NewMethodNotAllowed(method string) *HTTPError { + return &HTTPError{http.StatusMethodNotAllowed, errors.New(`Method is not allowed:"` + method + `"`)} +} + +// NewBadRequest creates a HttpError with the given error and error code 400. +func NewBadRequest(err error) *HTTPError { + return &HTTPError{http.StatusBadRequest, err} +} + +// NewBadRequestString returns a HttpError with the supplied message +// and error code 400. +func NewBadRequestString(s string) *HTTPError { + return NewBadRequest(errors.New(s)) +} + +// NewBadRequestMissingParameter returns a 400 HttpError as a required +// parameter is missing in the HTTP request. +func NewBadRequestMissingParameter(s string) *HTTPError { + return NewBadRequestString(`Missing parameter "` + s + `"`) +} + +// NewBadRequestUnwantedParameter returns a 400 HttpError as a unnecessary +// parameter is present in the HTTP request. +func NewBadRequestUnwantedParameter(s string) *HTTPError { + return NewBadRequestString(`Unwanted parameter "` + s + `"`) +} diff --git a/vendor/github.com/cloudflare/cfssl/helpers/derhelpers/derhelpers.go b/vendor/github.com/cloudflare/cfssl/helpers/derhelpers/derhelpers.go new file mode 100644 index 0000000000000..812664ceb7680 --- /dev/null +++ b/vendor/github.com/cloudflare/cfssl/helpers/derhelpers/derhelpers.go @@ -0,0 +1,48 @@ +// Package derhelpers implements common functionality +// on DER encoded data +package derhelpers + +import ( + "crypto" + "crypto/ecdsa" + "crypto/rsa" + "crypto/x509" + + cferr "github.com/cloudflare/cfssl/errors" + "golang.org/x/crypto/ed25519" +) + +// ParsePrivateKeyDER parses a PKCS #1, PKCS #8, ECDSA, or Ed25519 DER-encoded +// private key. The key must not be in PEM format. +func ParsePrivateKeyDER(keyDER []byte) (key crypto.Signer, err error) { + generalKey, err := x509.ParsePKCS8PrivateKey(keyDER) + if err != nil { + generalKey, err = x509.ParsePKCS1PrivateKey(keyDER) + if err != nil { + generalKey, err = x509.ParseECPrivateKey(keyDER) + if err != nil { + generalKey, err = ParseEd25519PrivateKey(keyDER) + if err != nil { + // We don't include the actual error into + // the final error. The reason might be + // we don't want to leak any info about + // the private key. + return nil, cferr.New(cferr.PrivateKeyError, + cferr.ParseFailed) + } + } + } + } + + switch generalKey.(type) { + case *rsa.PrivateKey: + return generalKey.(*rsa.PrivateKey), nil + case *ecdsa.PrivateKey: + return generalKey.(*ecdsa.PrivateKey), nil + case ed25519.PrivateKey: + return generalKey.(ed25519.PrivateKey), nil + } + + // should never reach here + return nil, cferr.New(cferr.PrivateKeyError, cferr.ParseFailed) +} diff --git a/vendor/github.com/cloudflare/cfssl/helpers/derhelpers/ed25519.go b/vendor/github.com/cloudflare/cfssl/helpers/derhelpers/ed25519.go new file mode 100644 index 0000000000000..9220f3e5fae66 --- /dev/null +++ b/vendor/github.com/cloudflare/cfssl/helpers/derhelpers/ed25519.go @@ -0,0 +1,133 @@ +package derhelpers + +import ( + "crypto" + "crypto/x509/pkix" + "encoding/asn1" + "errors" + + "golang.org/x/crypto/ed25519" +) + +var errEd25519WrongID = errors.New("incorrect object identifier") +var errEd25519WrongKeyType = errors.New("incorrect key type") + +// ed25519OID is the OID for the Ed25519 signature scheme: see +// https://datatracker.ietf.org/doc/draft-ietf-curdle-pkix-04. +var ed25519OID = asn1.ObjectIdentifier{1, 3, 101, 112} + +// subjectPublicKeyInfo reflects the ASN.1 object defined in the X.509 standard. +// +// This is defined in crypto/x509 as "publicKeyInfo". +type subjectPublicKeyInfo struct { + Algorithm pkix.AlgorithmIdentifier + PublicKey asn1.BitString +} + +// MarshalEd25519PublicKey creates a DER-encoded SubjectPublicKeyInfo for an +// ed25519 public key, as defined in +// https://tools.ietf.org/html/draft-ietf-curdle-pkix-04. This is analagous to +// MarshalPKIXPublicKey in crypto/x509, which doesn't currently support Ed25519. +func MarshalEd25519PublicKey(pk crypto.PublicKey) ([]byte, error) { + pub, ok := pk.(ed25519.PublicKey) + if !ok { + return nil, errEd25519WrongKeyType + } + + spki := subjectPublicKeyInfo{ + Algorithm: pkix.AlgorithmIdentifier{ + Algorithm: ed25519OID, + }, + PublicKey: asn1.BitString{ + BitLength: len(pub) * 8, + Bytes: pub, + }, + } + + return asn1.Marshal(spki) +} + +// ParseEd25519PublicKey returns the Ed25519 public key encoded by the input. +func ParseEd25519PublicKey(der []byte) (crypto.PublicKey, error) { + var spki subjectPublicKeyInfo + if rest, err := asn1.Unmarshal(der, &spki); err != nil { + return nil, err + } else if len(rest) > 0 { + return nil, errors.New("SubjectPublicKeyInfo too long") + } + + if !spki.Algorithm.Algorithm.Equal(ed25519OID) { + return nil, errEd25519WrongID + } + + if spki.PublicKey.BitLength != ed25519.PublicKeySize*8 { + return nil, errors.New("SubjectPublicKeyInfo PublicKey length mismatch") + } + + return ed25519.PublicKey(spki.PublicKey.Bytes), nil +} + +// oneAsymmetricKey reflects the ASN.1 structure for storing private keys in +// https://tools.ietf.org/html/draft-ietf-curdle-pkix-04, excluding the optional +// fields, which we don't use here. +// +// This is identical to pkcs8 in crypto/x509. +type oneAsymmetricKey struct { + Version int + Algorithm pkix.AlgorithmIdentifier + PrivateKey []byte +} + +// curvePrivateKey is the innter type of the PrivateKey field of +// oneAsymmetricKey. +type curvePrivateKey []byte + +// MarshalEd25519PrivateKey returns a DER encdoing of the input private key as +// specified in https://tools.ietf.org/html/draft-ietf-curdle-pkix-04. +func MarshalEd25519PrivateKey(sk crypto.PrivateKey) ([]byte, error) { + priv, ok := sk.(ed25519.PrivateKey) + if !ok { + return nil, errEd25519WrongKeyType + } + + // Marshal the innter CurvePrivateKey. + curvePrivateKey, err := asn1.Marshal(priv.Seed()) + if err != nil { + return nil, err + } + + // Marshal the OneAsymmetricKey. + asym := oneAsymmetricKey{ + Version: 0, + Algorithm: pkix.AlgorithmIdentifier{ + Algorithm: ed25519OID, + }, + PrivateKey: curvePrivateKey, + } + return asn1.Marshal(asym) +} + +// ParseEd25519PrivateKey returns the Ed25519 private key encoded by the input. +func ParseEd25519PrivateKey(der []byte) (crypto.PrivateKey, error) { + asym := new(oneAsymmetricKey) + if rest, err := asn1.Unmarshal(der, asym); err != nil { + return nil, err + } else if len(rest) > 0 { + return nil, errors.New("OneAsymmetricKey too long") + } + + // Check that the key type is correct. + if !asym.Algorithm.Algorithm.Equal(ed25519OID) { + return nil, errEd25519WrongID + } + + // Unmarshal the inner CurvePrivateKey. + seed := new(curvePrivateKey) + if rest, err := asn1.Unmarshal(asym.PrivateKey, seed); err != nil { + return nil, err + } else if len(rest) > 0 { + return nil, errors.New("CurvePrivateKey too long") + } + + return ed25519.NewKeyFromSeed(*seed), nil +} diff --git a/vendor/github.com/cloudflare/cfssl/helpers/helpers.go b/vendor/github.com/cloudflare/cfssl/helpers/helpers.go new file mode 100644 index 0000000000000..fdc2440d3f562 --- /dev/null +++ b/vendor/github.com/cloudflare/cfssl/helpers/helpers.go @@ -0,0 +1,590 @@ +// Package helpers implements utility functionality common to many +// CFSSL packages. +package helpers + +import ( + "bytes" + "crypto" + "crypto/ecdsa" + "crypto/elliptic" + "crypto/rsa" + "crypto/tls" + "crypto/x509" + "crypto/x509/pkix" + "encoding/asn1" + "encoding/pem" + "errors" + "fmt" + "io/ioutil" + "os" + + "github.com/google/certificate-transparency-go" + cttls "github.com/google/certificate-transparency-go/tls" + ctx509 "github.com/google/certificate-transparency-go/x509" + "golang.org/x/crypto/ocsp" + + "strings" + "time" + + "github.com/cloudflare/cfssl/crypto/pkcs7" + cferr "github.com/cloudflare/cfssl/errors" + "github.com/cloudflare/cfssl/helpers/derhelpers" + "github.com/cloudflare/cfssl/log" + "golang.org/x/crypto/pkcs12" +) + +// OneYear is a time.Duration representing a year's worth of seconds. +const OneYear = 8760 * time.Hour + +// OneDay is a time.Duration representing a day's worth of seconds. +const OneDay = 24 * time.Hour + +// InclusiveDate returns the time.Time representation of a date - 1 +// nanosecond. This allows time.After to be used inclusively. +func InclusiveDate(year int, month time.Month, day int) time.Time { + return time.Date(year, month, day, 0, 0, 0, 0, time.UTC).Add(-1 * time.Nanosecond) +} + +// Jul2012 is the July 2012 CAB Forum deadline for when CAs must stop +// issuing certificates valid for more than 5 years. +var Jul2012 = InclusiveDate(2012, time.July, 01) + +// Apr2015 is the April 2015 CAB Forum deadline for when CAs must stop +// issuing certificates valid for more than 39 months. +var Apr2015 = InclusiveDate(2015, time.April, 01) + +// KeyLength returns the bit size of ECDSA or RSA PublicKey +func KeyLength(key interface{}) int { + if key == nil { + return 0 + } + if ecdsaKey, ok := key.(*ecdsa.PublicKey); ok { + return ecdsaKey.Curve.Params().BitSize + } else if rsaKey, ok := key.(*rsa.PublicKey); ok { + return rsaKey.N.BitLen() + } + + return 0 +} + +// ExpiryTime returns the time when the certificate chain is expired. +func ExpiryTime(chain []*x509.Certificate) (notAfter time.Time) { + if len(chain) == 0 { + return + } + + notAfter = chain[0].NotAfter + for _, cert := range chain { + if notAfter.After(cert.NotAfter) { + notAfter = cert.NotAfter + } + } + return +} + +// MonthsValid returns the number of months for which a certificate is valid. +func MonthsValid(c *x509.Certificate) int { + issued := c.NotBefore + expiry := c.NotAfter + years := (expiry.Year() - issued.Year()) + months := years*12 + int(expiry.Month()) - int(issued.Month()) + + // Round up if valid for less than a full month + if expiry.Day() > issued.Day() { + months++ + } + return months +} + +// ValidExpiry determines if a certificate is valid for an acceptable +// length of time per the CA/Browser Forum baseline requirements. +// See https://cabforum.org/wp-content/uploads/CAB-Forum-BR-1.3.0.pdf +func ValidExpiry(c *x509.Certificate) bool { + issued := c.NotBefore + + var maxMonths int + switch { + case issued.After(Apr2015): + maxMonths = 39 + case issued.After(Jul2012): + maxMonths = 60 + case issued.Before(Jul2012): + maxMonths = 120 + } + + if MonthsValid(c) > maxMonths { + return false + } + return true +} + +// SignatureString returns the TLS signature string corresponding to +// an X509 signature algorithm. +func SignatureString(alg x509.SignatureAlgorithm) string { + switch alg { + case x509.MD2WithRSA: + return "MD2WithRSA" + case x509.MD5WithRSA: + return "MD5WithRSA" + case x509.SHA1WithRSA: + return "SHA1WithRSA" + case x509.SHA256WithRSA: + return "SHA256WithRSA" + case x509.SHA384WithRSA: + return "SHA384WithRSA" + case x509.SHA512WithRSA: + return "SHA512WithRSA" + case x509.DSAWithSHA1: + return "DSAWithSHA1" + case x509.DSAWithSHA256: + return "DSAWithSHA256" + case x509.ECDSAWithSHA1: + return "ECDSAWithSHA1" + case x509.ECDSAWithSHA256: + return "ECDSAWithSHA256" + case x509.ECDSAWithSHA384: + return "ECDSAWithSHA384" + case x509.ECDSAWithSHA512: + return "ECDSAWithSHA512" + default: + return "Unknown Signature" + } +} + +// HashAlgoString returns the hash algorithm name contains in the signature +// method. +func HashAlgoString(alg x509.SignatureAlgorithm) string { + switch alg { + case x509.MD2WithRSA: + return "MD2" + case x509.MD5WithRSA: + return "MD5" + case x509.SHA1WithRSA: + return "SHA1" + case x509.SHA256WithRSA: + return "SHA256" + case x509.SHA384WithRSA: + return "SHA384" + case x509.SHA512WithRSA: + return "SHA512" + case x509.DSAWithSHA1: + return "SHA1" + case x509.DSAWithSHA256: + return "SHA256" + case x509.ECDSAWithSHA1: + return "SHA1" + case x509.ECDSAWithSHA256: + return "SHA256" + case x509.ECDSAWithSHA384: + return "SHA384" + case x509.ECDSAWithSHA512: + return "SHA512" + default: + return "Unknown Hash Algorithm" + } +} + +// StringTLSVersion returns underlying enum values from human names for TLS +// versions, defaults to current golang default of TLS 1.0 +func StringTLSVersion(version string) uint16 { + switch version { + case "1.2": + return tls.VersionTLS12 + case "1.1": + return tls.VersionTLS11 + default: + return tls.VersionTLS10 + } +} + +// EncodeCertificatesPEM encodes a number of x509 certificates to PEM +func EncodeCertificatesPEM(certs []*x509.Certificate) []byte { + var buffer bytes.Buffer + for _, cert := range certs { + pem.Encode(&buffer, &pem.Block{ + Type: "CERTIFICATE", + Bytes: cert.Raw, + }) + } + + return buffer.Bytes() +} + +// EncodeCertificatePEM encodes a single x509 certificates to PEM +func EncodeCertificatePEM(cert *x509.Certificate) []byte { + return EncodeCertificatesPEM([]*x509.Certificate{cert}) +} + +// ParseCertificatesPEM parses a sequence of PEM-encoded certificate and returns them, +// can handle PEM encoded PKCS #7 structures. +func ParseCertificatesPEM(certsPEM []byte) ([]*x509.Certificate, error) { + var certs []*x509.Certificate + var err error + certsPEM = bytes.TrimSpace(certsPEM) + for len(certsPEM) > 0 { + var cert []*x509.Certificate + cert, certsPEM, err = ParseOneCertificateFromPEM(certsPEM) + if err != nil { + + return nil, cferr.New(cferr.CertificateError, cferr.ParseFailed) + } else if cert == nil { + break + } + + certs = append(certs, cert...) + } + if len(certsPEM) > 0 { + return nil, cferr.New(cferr.CertificateError, cferr.DecodeFailed) + } + return certs, nil +} + +// ParseCertificatesDER parses a DER encoding of a certificate object and possibly private key, +// either PKCS #7, PKCS #12, or raw x509. +func ParseCertificatesDER(certsDER []byte, password string) (certs []*x509.Certificate, key crypto.Signer, err error) { + certsDER = bytes.TrimSpace(certsDER) + pkcs7data, err := pkcs7.ParsePKCS7(certsDER) + if err != nil { + var pkcs12data interface{} + certs = make([]*x509.Certificate, 1) + pkcs12data, certs[0], err = pkcs12.Decode(certsDER, password) + if err != nil { + certs, err = x509.ParseCertificates(certsDER) + if err != nil { + return nil, nil, cferr.New(cferr.CertificateError, cferr.DecodeFailed) + } + } else { + key = pkcs12data.(crypto.Signer) + } + } else { + if pkcs7data.ContentInfo != "SignedData" { + return nil, nil, cferr.Wrap(cferr.CertificateError, cferr.DecodeFailed, errors.New("can only extract certificates from signed data content info")) + } + certs = pkcs7data.Content.SignedData.Certificates + } + if certs == nil { + return nil, key, cferr.New(cferr.CertificateError, cferr.DecodeFailed) + } + return certs, key, nil +} + +// ParseSelfSignedCertificatePEM parses a PEM-encoded certificate and check if it is self-signed. +func ParseSelfSignedCertificatePEM(certPEM []byte) (*x509.Certificate, error) { + cert, err := ParseCertificatePEM(certPEM) + if err != nil { + return nil, err + } + + if err := cert.CheckSignature(cert.SignatureAlgorithm, cert.RawTBSCertificate, cert.Signature); err != nil { + return nil, cferr.Wrap(cferr.CertificateError, cferr.VerifyFailed, err) + } + return cert, nil +} + +// ParseCertificatePEM parses and returns a PEM-encoded certificate, +// can handle PEM encoded PKCS #7 structures. +func ParseCertificatePEM(certPEM []byte) (*x509.Certificate, error) { + certPEM = bytes.TrimSpace(certPEM) + cert, rest, err := ParseOneCertificateFromPEM(certPEM) + if err != nil { + // Log the actual parsing error but throw a default parse error message. + log.Debugf("Certificate parsing error: %v", err) + return nil, cferr.New(cferr.CertificateError, cferr.ParseFailed) + } else if cert == nil { + return nil, cferr.New(cferr.CertificateError, cferr.DecodeFailed) + } else if len(rest) > 0 { + return nil, cferr.Wrap(cferr.CertificateError, cferr.ParseFailed, errors.New("the PEM file should contain only one object")) + } else if len(cert) > 1 { + return nil, cferr.Wrap(cferr.CertificateError, cferr.ParseFailed, errors.New("the PKCS7 object in the PEM file should contain only one certificate")) + } + return cert[0], nil +} + +// ParseOneCertificateFromPEM attempts to parse one PEM encoded certificate object, +// either a raw x509 certificate or a PKCS #7 structure possibly containing +// multiple certificates, from the top of certsPEM, which itself may +// contain multiple PEM encoded certificate objects. +func ParseOneCertificateFromPEM(certsPEM []byte) ([]*x509.Certificate, []byte, error) { + + block, rest := pem.Decode(certsPEM) + if block == nil { + return nil, rest, nil + } + + cert, err := x509.ParseCertificate(block.Bytes) + if err != nil { + pkcs7data, err := pkcs7.ParsePKCS7(block.Bytes) + if err != nil { + return nil, rest, err + } + if pkcs7data.ContentInfo != "SignedData" { + return nil, rest, errors.New("only PKCS #7 Signed Data Content Info supported for certificate parsing") + } + certs := pkcs7data.Content.SignedData.Certificates + if certs == nil { + return nil, rest, errors.New("PKCS #7 structure contains no certificates") + } + return certs, rest, nil + } + var certs = []*x509.Certificate{cert} + return certs, rest, nil +} + +// LoadPEMCertPool loads a pool of PEM certificates from file. +func LoadPEMCertPool(certsFile string) (*x509.CertPool, error) { + if certsFile == "" { + return nil, nil + } + pemCerts, err := ioutil.ReadFile(certsFile) + if err != nil { + return nil, err + } + + return PEMToCertPool(pemCerts) +} + +// PEMToCertPool concerts PEM certificates to a CertPool. +func PEMToCertPool(pemCerts []byte) (*x509.CertPool, error) { + if len(pemCerts) == 0 { + return nil, nil + } + + certPool := x509.NewCertPool() + if !certPool.AppendCertsFromPEM(pemCerts) { + return nil, errors.New("failed to load cert pool") + } + + return certPool, nil +} + +// ParsePrivateKeyPEM parses and returns a PEM-encoded private +// key. The private key may be either an unencrypted PKCS#8, PKCS#1, +// or elliptic private key. +func ParsePrivateKeyPEM(keyPEM []byte) (key crypto.Signer, err error) { + return ParsePrivateKeyPEMWithPassword(keyPEM, nil) +} + +// ParsePrivateKeyPEMWithPassword parses and returns a PEM-encoded private +// key. The private key may be a potentially encrypted PKCS#8, PKCS#1, +// or elliptic private key. +func ParsePrivateKeyPEMWithPassword(keyPEM []byte, password []byte) (key crypto.Signer, err error) { + keyDER, err := GetKeyDERFromPEM(keyPEM, password) + if err != nil { + return nil, err + } + + return derhelpers.ParsePrivateKeyDER(keyDER) +} + +// GetKeyDERFromPEM parses a PEM-encoded private key and returns DER-format key bytes. +func GetKeyDERFromPEM(in []byte, password []byte) ([]byte, error) { + keyDER, _ := pem.Decode(in) + if keyDER != nil { + if procType, ok := keyDER.Headers["Proc-Type"]; ok { + if strings.Contains(procType, "ENCRYPTED") { + if password != nil { + return x509.DecryptPEMBlock(keyDER, password) + } + return nil, cferr.New(cferr.PrivateKeyError, cferr.Encrypted) + } + } + return keyDER.Bytes, nil + } + + return nil, cferr.New(cferr.PrivateKeyError, cferr.DecodeFailed) +} + +// ParseCSR parses a PEM- or DER-encoded PKCS #10 certificate signing request. +func ParseCSR(in []byte) (csr *x509.CertificateRequest, rest []byte, err error) { + in = bytes.TrimSpace(in) + p, rest := pem.Decode(in) + if p != nil { + if p.Type != "NEW CERTIFICATE REQUEST" && p.Type != "CERTIFICATE REQUEST" { + return nil, rest, cferr.New(cferr.CSRError, cferr.BadRequest) + } + + csr, err = x509.ParseCertificateRequest(p.Bytes) + } else { + csr, err = x509.ParseCertificateRequest(in) + } + + if err != nil { + return nil, rest, err + } + + err = csr.CheckSignature() + if err != nil { + return nil, rest, err + } + + return csr, rest, nil +} + +// ParseCSRPEM parses a PEM-encoded certificate signing request. +// It does not check the signature. This is useful for dumping data from a CSR +// locally. +func ParseCSRPEM(csrPEM []byte) (*x509.CertificateRequest, error) { + block, _ := pem.Decode([]byte(csrPEM)) + if block == nil { + return nil, cferr.New(cferr.CSRError, cferr.DecodeFailed) + } + csrObject, err := x509.ParseCertificateRequest(block.Bytes) + + if err != nil { + return nil, err + } + + return csrObject, nil +} + +// SignerAlgo returns an X.509 signature algorithm from a crypto.Signer. +func SignerAlgo(priv crypto.Signer) x509.SignatureAlgorithm { + switch pub := priv.Public().(type) { + case *rsa.PublicKey: + bitLength := pub.N.BitLen() + switch { + case bitLength >= 4096: + return x509.SHA512WithRSA + case bitLength >= 3072: + return x509.SHA384WithRSA + case bitLength >= 2048: + return x509.SHA256WithRSA + default: + return x509.SHA1WithRSA + } + case *ecdsa.PublicKey: + switch pub.Curve { + case elliptic.P521(): + return x509.ECDSAWithSHA512 + case elliptic.P384(): + return x509.ECDSAWithSHA384 + case elliptic.P256(): + return x509.ECDSAWithSHA256 + default: + return x509.ECDSAWithSHA1 + } + default: + return x509.UnknownSignatureAlgorithm + } +} + +// LoadClientCertificate load key/certificate from pem files +func LoadClientCertificate(certFile string, keyFile string) (*tls.Certificate, error) { + if certFile != "" && keyFile != "" { + cert, err := tls.LoadX509KeyPair(certFile, keyFile) + if err != nil { + log.Criticalf("Unable to read client certificate from file: %s or key from file: %s", certFile, keyFile) + return nil, err + } + log.Debug("Client certificate loaded ") + return &cert, nil + } + return nil, nil +} + +// CreateTLSConfig creates a tls.Config object from certs and roots +func CreateTLSConfig(remoteCAs *x509.CertPool, cert *tls.Certificate) *tls.Config { + var certs []tls.Certificate + if cert != nil { + certs = []tls.Certificate{*cert} + } + return &tls.Config{ + Certificates: certs, + RootCAs: remoteCAs, + } +} + +// SerializeSCTList serializes a list of SCTs. +func SerializeSCTList(sctList []ct.SignedCertificateTimestamp) ([]byte, error) { + list := ctx509.SignedCertificateTimestampList{} + for _, sct := range sctList { + sctBytes, err := cttls.Marshal(sct) + if err != nil { + return nil, err + } + list.SCTList = append(list.SCTList, ctx509.SerializedSCT{Val: sctBytes}) + } + return cttls.Marshal(list) +} + +// DeserializeSCTList deserializes a list of SCTs. +func DeserializeSCTList(serializedSCTList []byte) ([]ct.SignedCertificateTimestamp, error) { + var sctList ctx509.SignedCertificateTimestampList + rest, err := cttls.Unmarshal(serializedSCTList, &sctList) + if err != nil { + return nil, err + } + if len(rest) != 0 { + return nil, cferr.Wrap(cferr.CTError, cferr.Unknown, errors.New("serialized SCT list contained trailing garbage")) + } + list := make([]ct.SignedCertificateTimestamp, len(sctList.SCTList)) + for i, serializedSCT := range sctList.SCTList { + var sct ct.SignedCertificateTimestamp + rest, err := cttls.Unmarshal(serializedSCT.Val, &sct) + if err != nil { + return nil, err + } + if len(rest) != 0 { + return nil, cferr.Wrap(cferr.CTError, cferr.Unknown, errors.New("serialized SCT contained trailing garbage")) + } + list[i] = sct + } + return list, nil +} + +// SCTListFromOCSPResponse extracts the SCTList from an ocsp.Response, +// returning an empty list if the SCT extension was not found or could not be +// unmarshalled. +func SCTListFromOCSPResponse(response *ocsp.Response) ([]ct.SignedCertificateTimestamp, error) { + // This loop finds the SCTListExtension in the OCSP response. + var SCTListExtension, ext pkix.Extension + for _, ext = range response.Extensions { + // sctExtOid is the ObjectIdentifier of a Signed Certificate Timestamp. + sctExtOid := asn1.ObjectIdentifier{1, 3, 6, 1, 4, 1, 11129, 2, 4, 5} + if ext.Id.Equal(sctExtOid) { + SCTListExtension = ext + break + } + } + + // This code block extracts the sctList from the SCT extension. + var sctList []ct.SignedCertificateTimestamp + var err error + if numBytes := len(SCTListExtension.Value); numBytes != 0 { + var serializedSCTList []byte + rest := make([]byte, numBytes) + copy(rest, SCTListExtension.Value) + for len(rest) != 0 { + rest, err = asn1.Unmarshal(rest, &serializedSCTList) + if err != nil { + return nil, cferr.Wrap(cferr.CTError, cferr.Unknown, err) + } + } + sctList, err = DeserializeSCTList(serializedSCTList) + } + return sctList, err +} + +// ReadBytes reads a []byte either from a file or an environment variable. +// If valFile has a prefix of 'env:', the []byte is read from the environment +// using the subsequent name. If the prefix is 'file:' the []byte is read from +// the subsequent file. If no prefix is provided, valFile is assumed to be a +// file path. +func ReadBytes(valFile string) ([]byte, error) { + switch splitVal := strings.SplitN(valFile, ":", 2); len(splitVal) { + case 1: + return ioutil.ReadFile(valFile) + case 2: + switch splitVal[0] { + case "env": + return []byte(os.Getenv(splitVal[1])), nil + case "file": + return ioutil.ReadFile(splitVal[1]) + default: + return nil, fmt.Errorf("unknown prefix: %s", splitVal[0]) + } + default: + return nil, fmt.Errorf("multiple prefixes: %s", + strings.Join(splitVal[:len(splitVal)-1], ", ")) + } +} diff --git a/vendor/github.com/cloudflare/cfssl/log/log.go b/vendor/github.com/cloudflare/cfssl/log/log.go new file mode 100644 index 0000000000000..956c9d4604a9c --- /dev/null +++ b/vendor/github.com/cloudflare/cfssl/log/log.go @@ -0,0 +1,162 @@ +// Package log implements a wrapper around the Go standard library's +// logging package. Clients should set the current log level; only +// messages below that level will actually be logged. For example, if +// Level is set to LevelWarning, only log messages at the Warning, +// Error, and Critical levels will be logged. +package log + +import ( + "fmt" + "log" + "os" +) + +// The following constants represent logging levels in increasing levels of seriousness. +const ( + // LevelDebug is the log level for Debug statements. + LevelDebug = iota + // LevelInfo is the log level for Info statements. + LevelInfo + // LevelWarning is the log level for Warning statements. + LevelWarning + // LevelError is the log level for Error statements. + LevelError + // LevelCritical is the log level for Critical statements. + LevelCritical + // LevelFatal is the log level for Fatal statements. + LevelFatal +) + +var levelPrefix = [...]string{ + LevelDebug: "DEBUG", + LevelInfo: "INFO", + LevelWarning: "WARNING", + LevelError: "ERROR", + LevelCritical: "CRITICAL", + LevelFatal: "FATAL", +} + +// Level stores the current logging level. +var Level = LevelInfo + +// SyslogWriter specifies the necessary methods for an alternate output +// destination passed in via SetLogger. +// +// SyslogWriter is satisfied by *syslog.Writer. +type SyslogWriter interface { + Debug(string) + Info(string) + Warning(string) + Err(string) + Crit(string) + Emerg(string) +} + +// syslogWriter stores the SetLogger() parameter. +var syslogWriter SyslogWriter + +// SetLogger sets the output used for output by this package. +// A *syslog.Writer is a good choice for the logger parameter. +// Call with a nil parameter to revert to default behavior. +func SetLogger(logger SyslogWriter) { + syslogWriter = logger +} + +func print(l int, msg string) { + if l >= Level { + if syslogWriter != nil { + switch l { + case LevelDebug: + syslogWriter.Debug(msg) + case LevelInfo: + syslogWriter.Info(msg) + case LevelWarning: + syslogWriter.Warning(msg) + case LevelError: + syslogWriter.Err(msg) + case LevelCritical: + syslogWriter.Crit(msg) + case LevelFatal: + syslogWriter.Emerg(msg) + } + } else { + log.Printf("[%s] %s", levelPrefix[l], msg) + } + } +} + +func outputf(l int, format string, v []interface{}) { + print(l, fmt.Sprintf(format, v...)) +} + +func output(l int, v []interface{}) { + print(l, fmt.Sprint(v...)) +} + +// Fatalf logs a formatted message at the "fatal" level and then exits. The +// arguments are handled in the same manner as fmt.Printf. +func Fatalf(format string, v ...interface{}) { + outputf(LevelFatal, format, v) + os.Exit(1) +} + +// Fatal logs its arguments at the "fatal" level and then exits. +func Fatal(v ...interface{}) { + output(LevelFatal, v) + os.Exit(1) +} + +// Criticalf logs a formatted message at the "critical" level. The +// arguments are handled in the same manner as fmt.Printf. +func Criticalf(format string, v ...interface{}) { + outputf(LevelCritical, format, v) +} + +// Critical logs its arguments at the "critical" level. +func Critical(v ...interface{}) { + output(LevelCritical, v) +} + +// Errorf logs a formatted message at the "error" level. The arguments +// are handled in the same manner as fmt.Printf. +func Errorf(format string, v ...interface{}) { + outputf(LevelError, format, v) +} + +// Error logs its arguments at the "error" level. +func Error(v ...interface{}) { + output(LevelError, v) +} + +// Warningf logs a formatted message at the "warning" level. The +// arguments are handled in the same manner as fmt.Printf. +func Warningf(format string, v ...interface{}) { + outputf(LevelWarning, format, v) +} + +// Warning logs its arguments at the "warning" level. +func Warning(v ...interface{}) { + output(LevelWarning, v) +} + +// Infof logs a formatted message at the "info" level. The arguments +// are handled in the same manner as fmt.Printf. +func Infof(format string, v ...interface{}) { + outputf(LevelInfo, format, v) +} + +// Info logs its arguments at the "info" level. +func Info(v ...interface{}) { + output(LevelInfo, v) +} + +// Debugf logs a formatted message at the "debug" level. The arguments +// are handled in the same manner as fmt.Printf. +func Debugf(format string, v ...interface{}) { + outputf(LevelDebug, format, v) +} + +// Debug logs its arguments at the "debug" level. +func Debug(v ...interface{}) { + output(LevelDebug, v) +} diff --git a/vendor/github.com/cloudflare/cfssl/revoke/revoke.go b/vendor/github.com/cloudflare/cfssl/revoke/revoke.go new file mode 100644 index 0000000000000..467dfe99eeefa --- /dev/null +++ b/vendor/github.com/cloudflare/cfssl/revoke/revoke.go @@ -0,0 +1,336 @@ +// Package revoke provides functionality for checking the validity of +// a cert. Specifically, the temporal validity of the certificate is +// checked first, then any CRL and OCSP url in the cert is checked. +package revoke + +import ( + "bytes" + "crypto" + "crypto/x509" + "crypto/x509/pkix" + "encoding/base64" + "encoding/pem" + "errors" + "fmt" + "io" + "io/ioutil" + "net/http" + neturl "net/url" + "sync" + "time" + + "golang.org/x/crypto/ocsp" + + "github.com/cloudflare/cfssl/helpers" + "github.com/cloudflare/cfssl/log" +) + +// HardFail determines whether the failure to check the revocation +// status of a certificate (i.e. due to network failure) causes +// verification to fail (a hard failure). +var HardFail = false + +// CRLSet associates a PKIX certificate list with the URL the CRL is +// fetched from. +var CRLSet = map[string]*pkix.CertificateList{} +var crlLock = new(sync.Mutex) + +// We can't handle LDAP certificates, so this checks to see if the +// URL string points to an LDAP resource so that we can ignore it. +func ldapURL(url string) bool { + u, err := neturl.Parse(url) + if err != nil { + log.Warningf("error parsing url %s: %v", url, err) + return false + } + if u.Scheme == "ldap" { + return true + } + return false +} + +// revCheck should check the certificate for any revocations. It +// returns a pair of booleans: the first indicates whether the certificate +// is revoked, the second indicates whether the revocations were +// successfully checked.. This leads to the following combinations: +// +// false, false: an error was encountered while checking revocations. +// +// false, true: the certificate was checked successfully and +// it is not revoked. +// +// true, true: the certificate was checked successfully and +// it is revoked. +// +// true, false: failure to check revocation status causes +// verification to fail +func revCheck(cert *x509.Certificate) (revoked, ok bool, err error) { + for _, url := range cert.CRLDistributionPoints { + if ldapURL(url) { + log.Infof("skipping LDAP CRL: %s", url) + continue + } + + if revoked, ok, err := certIsRevokedCRL(cert, url); !ok { + log.Warning("error checking revocation via CRL") + if HardFail { + return true, false, err + } + return false, false, err + } else if revoked { + log.Info("certificate is revoked via CRL") + return true, true, err + } + } + + if revoked, ok, err := certIsRevokedOCSP(cert, HardFail); !ok { + log.Warning("error checking revocation via OCSP") + if HardFail { + return true, false, err + } + return false, false, err + } else if revoked { + log.Info("certificate is revoked via OCSP") + return true, true, err + } + + return false, true, nil +} + +// fetchCRL fetches and parses a CRL. +func fetchCRL(url string) (*pkix.CertificateList, error) { + resp, err := http.Get(url) + if err != nil { + return nil, err + } else if resp.StatusCode >= 300 { + return nil, errors.New("failed to retrieve CRL") + } + + body, err := crlRead(resp.Body) + if err != nil { + return nil, err + } + resp.Body.Close() + + return x509.ParseCRL(body) +} + +func getIssuer(cert *x509.Certificate) *x509.Certificate { + var issuer *x509.Certificate + var err error + for _, issuingCert := range cert.IssuingCertificateURL { + issuer, err = fetchRemote(issuingCert) + if err != nil { + continue + } + break + } + + return issuer + +} + +// check a cert against a specific CRL. Returns the same bool pair +// as revCheck, plus an error if one occurred. +func certIsRevokedCRL(cert *x509.Certificate, url string) (revoked, ok bool, err error) { + crl, ok := CRLSet[url] + if ok && crl == nil { + ok = false + crlLock.Lock() + delete(CRLSet, url) + crlLock.Unlock() + } + + var shouldFetchCRL = true + if ok { + if !crl.HasExpired(time.Now()) { + shouldFetchCRL = false + } + } + + issuer := getIssuer(cert) + + if shouldFetchCRL { + var err error + crl, err = fetchCRL(url) + if err != nil { + log.Warningf("failed to fetch CRL: %v", err) + return false, false, err + } + + // check CRL signature + if issuer != nil { + err = issuer.CheckCRLSignature(crl) + if err != nil { + log.Warningf("failed to verify CRL: %v", err) + return false, false, err + } + } + + crlLock.Lock() + CRLSet[url] = crl + crlLock.Unlock() + } + + for _, revoked := range crl.TBSCertList.RevokedCertificates { + if cert.SerialNumber.Cmp(revoked.SerialNumber) == 0 { + log.Info("Serial number match: intermediate is revoked.") + return true, true, err + } + } + + return false, true, err +} + +// VerifyCertificate ensures that the certificate passed in hasn't +// expired and checks the CRL for the server. +func VerifyCertificate(cert *x509.Certificate) (revoked, ok bool) { + revoked, ok, _ = VerifyCertificateError(cert) + return revoked, ok +} + +// VerifyCertificateError ensures that the certificate passed in hasn't +// expired and checks the CRL for the server. +func VerifyCertificateError(cert *x509.Certificate) (revoked, ok bool, err error) { + if !time.Now().Before(cert.NotAfter) { + msg := fmt.Sprintf("Certificate expired %s\n", cert.NotAfter) + log.Info(msg) + return true, true, fmt.Errorf(msg) + } else if !time.Now().After(cert.NotBefore) { + msg := fmt.Sprintf("Certificate isn't valid until %s\n", cert.NotBefore) + log.Info(msg) + return true, true, fmt.Errorf(msg) + } + return revCheck(cert) +} + +func fetchRemote(url string) (*x509.Certificate, error) { + resp, err := http.Get(url) + if err != nil { + return nil, err + } + + in, err := remoteRead(resp.Body) + if err != nil { + return nil, err + } + resp.Body.Close() + + p, _ := pem.Decode(in) + if p != nil { + return helpers.ParseCertificatePEM(in) + } + + return x509.ParseCertificate(in) +} + +var ocspOpts = ocsp.RequestOptions{ + Hash: crypto.SHA1, +} + +func certIsRevokedOCSP(leaf *x509.Certificate, strict bool) (revoked, ok bool, e error) { + var err error + + ocspURLs := leaf.OCSPServer + if len(ocspURLs) == 0 { + // OCSP not enabled for this certificate. + return false, true, nil + } + + issuer := getIssuer(leaf) + + if issuer == nil { + return false, false, nil + } + + ocspRequest, err := ocsp.CreateRequest(leaf, issuer, &ocspOpts) + if err != nil { + return revoked, ok, err + } + + for _, server := range ocspURLs { + resp, err := sendOCSPRequest(server, ocspRequest, leaf, issuer) + if err != nil { + if strict { + return revoked, ok, err + } + continue + } + + // There wasn't an error fetching the OCSP status. + ok = true + + if resp.Status != ocsp.Good { + // The certificate was revoked. + revoked = true + } + + return revoked, ok, err + } + return revoked, ok, err +} + +// sendOCSPRequest attempts to request an OCSP response from the +// server. The error only indicates a failure to *fetch* the +// certificate, and *does not* mean the certificate is valid. +func sendOCSPRequest(server string, req []byte, leaf, issuer *x509.Certificate) (*ocsp.Response, error) { + var resp *http.Response + var err error + if len(req) > 256 { + buf := bytes.NewBuffer(req) + resp, err = http.Post(server, "application/ocsp-request", buf) + } else { + reqURL := server + "/" + neturl.QueryEscape(base64.StdEncoding.EncodeToString(req)) + resp, err = http.Get(reqURL) + } + + if err != nil { + return nil, err + } + + if resp.StatusCode != http.StatusOK { + return nil, errors.New("failed to retrieve OSCP") + } + + body, err := ocspRead(resp.Body) + if err != nil { + return nil, err + } + resp.Body.Close() + + switch { + case bytes.Equal(body, ocsp.UnauthorizedErrorResponse): + return nil, errors.New("OSCP unauthorized") + case bytes.Equal(body, ocsp.MalformedRequestErrorResponse): + return nil, errors.New("OSCP malformed") + case bytes.Equal(body, ocsp.InternalErrorErrorResponse): + return nil, errors.New("OSCP internal error") + case bytes.Equal(body, ocsp.TryLaterErrorResponse): + return nil, errors.New("OSCP try later") + case bytes.Equal(body, ocsp.SigRequredErrorResponse): + return nil, errors.New("OSCP signature required") + } + + return ocsp.ParseResponseForCert(body, leaf, issuer) +} + +var crlRead = ioutil.ReadAll + +// SetCRLFetcher sets the function to use to read from the http response body +func SetCRLFetcher(fn func(io.Reader) ([]byte, error)) { + crlRead = fn +} + +var remoteRead = ioutil.ReadAll + +// SetRemoteFetcher sets the function to use to read from the http response body +func SetRemoteFetcher(fn func(io.Reader) ([]byte, error)) { + remoteRead = fn +} + +var ocspRead = ioutil.ReadAll + +// SetOCSPFetcher sets the function to use to read from the http response body +func SetOCSPFetcher(fn func(io.Reader) ([]byte, error)) { + ocspRead = fn +} diff --git a/vendor/github.com/duo-labs/webauthn/LICENSE.txt b/vendor/github.com/duo-labs/webauthn/LICENSE.txt new file mode 100644 index 0000000000000..c98934543b003 --- /dev/null +++ b/vendor/github.com/duo-labs/webauthn/LICENSE.txt @@ -0,0 +1,26 @@ +Copyright (c) 2017 Duo Security, Inc. All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions +are met: + +1. Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. +2. Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. +3. Neither the name of the copyright holder nor the names of its + contributors may be used to endorse or promote products derived from + this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS +IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR +PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR +CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, +EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, +PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR +PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF +LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING +NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS +SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/vendor/github.com/duo-labs/webauthn/metadata/metadata.go b/vendor/github.com/duo-labs/webauthn/metadata/metadata.go new file mode 100644 index 0000000000000..834075c2a466f --- /dev/null +++ b/vendor/github.com/duo-labs/webauthn/metadata/metadata.go @@ -0,0 +1,617 @@ +package metadata + +import ( + "bytes" + "crypto" + "crypto/x509" + "encoding/base64" + "encoding/json" + "errors" + "io/ioutil" + "net/http" + + "github.com/cloudflare/cfssl/revoke" + "github.com/mitchellh/mapstructure" + uuid "github.com/satori/go.uuid" + + jwt "github.com/golang-jwt/jwt/v4" +) + +// Metadata is a map of authenticator AAGUIDs to corresponding metadata statements +var Metadata = make(map[uuid.UUID]MetadataTOCPayloadEntry) + +// Conformance indicates if test metadata is currently being used +var Conformance = false + +// AuthenticatorAttestationType - The ATTESTATION constants are 16 bit long integers indicating the specific attestation that authenticator supports. +type AuthenticatorAttestationType uint16 + +const ( + // BasicFull - Indicates full basic attestation, based on an attestation private key shared among a class of authenticators (e.g. same model). Authenticators must provide its attestation signature during the registration process for the same reason. The attestation trust anchor is shared with FIDO Servers out of band (as part of the Metadata). This sharing process shouldt be done according to [UAFMetadataService]. + BasicFull AuthenticatorAttestationType = 0x3E07 + // BasicSurrogate - Just syntactically a Basic Attestation. The attestation object self-signed, i.e. it is signed using the UAuth.priv key, i.e. the key corresponding to the UAuth.pub key included in the attestation object. As a consequence it does not provide a cryptographic proof of the security characteristics. But it is the best thing we can do if the authenticator is not able to have an attestation private key. + BasicSurrogate + // Ecdaa - Indicates use of elliptic curve based direct anonymous attestation as defined in [FIDOEcdaaAlgorithm]. Support for this attestation type is optional at this time. It might be required by FIDO Certification. + Ecdaa + // AttCA - Indicates PrivacyCA attestation as defined in [TCG-CMCProfile-AIKCertEnroll]. Support for this attestation type is optional at this time. It might be required by FIDO Certification. + AttCA +) + +// AuthenticatorStatus - This enumeration describes the status of an authenticator model as identified by its AAID and potentially some additional information (such as a specific attestation key). +type AuthenticatorStatus string + +const ( + // NotFidoCertified - This authenticator is not FIDO certified. + NotFidoCertified = "NOT_FIDO_CERTIFIED" + // FidoCertified - This authenticator has passed FIDO functional certification. This certification scheme is phased out and will be replaced by FIDO_CERTIFIED_L1. + FidoCertified = "FIDO_CERTIFIED" + // UserVerificationBypass - Indicates that malware is able to bypass the user verification. This means that the authenticator could be used without the user's consent and potentially even without the user's knowledge. + UserVerificationBypass = "USER_VERIFICATION_BYPASS" + // AttestationKeyCompromise - Indicates that an attestation key for this authenticator is known to be compromised. Additional data should be supplied, including the key identifier and the date of compromise, if known. + AttestationKeyCompromise = "ATTESTATION_KEY_COMPROMISE" + // UserKeyRemoteCompromise - This authenticator has identified weaknesses that allow registered keys to be compromised and should not be trusted. This would include both, e.g. weak entropy that causes predictable keys to be generated or side channels that allow keys or signatures to be forged, guessed or extracted. + UserKeyRemoteCompromise = "USER_KEY_REMOTE_COMPROMISE" + // UserKeyPhysicalCompromise - This authenticator has known weaknesses in its key protection mechanism(s) that allow user keys to be extracted by an adversary in physical possession of the device. + UserKeyPhysicalCompromise = "USER_KEY_PHYSICAL_COMPROMISE" + // UpdateAvailable - A software or firmware update is available for the device. Additional data should be supplied including a URL where users can obtain an update and the date the update was published. + UpdateAvailable = "UPDATE_AVAILABLE" + // Revoked - The FIDO Alliance has determined that this authenticator should not be trusted for any reason, for example if it is known to be a fraudulent product or contain a deliberate backdoor. + Revoked = "REVOKED" + // SelfAssertionSubmitted - The authenticator vendor has completed and submitted the self-certification checklist to the FIDO Alliance. If this completed checklist is publicly available, the URL will be specified in StatusReport.url. + SelfAssertionSubmitted = "SELF_ASSERTION_SUBMITTED" + // FidoCertifiedL1 - The authenticator has passed FIDO Authenticator certification at level 1. This level is the more strict successor of FIDO_CERTIFIED. + FidoCertifiedL1 = "FIDO_CERTIFIED_L1" + // FidoCertifiedL1plus - The authenticator has passed FIDO Authenticator certification at level 1+. This level is the more than level 1. + FidoCertifiedL1plus = "FIDO_CERTIFIED_L1plus" + // FidoCertifiedL2 - The authenticator has passed FIDO Authenticator certification at level 2. This level is more strict than level 1+. + FidoCertifiedL2 = "FIDO_CERTIFIED_L2" + // FidoCertifiedL2plus - The authenticator has passed FIDO Authenticator certification at level 2+. This level is more strict than level 2. + FidoCertifiedL2plus = "FIDO_CERTIFIED_L2plus" + // FidoCertifiedL3 - The authenticator has passed FIDO Authenticator certification at level 3. This level is more strict than level 2+. + FidoCertifiedL3 = "FIDO_CERTIFIED_L3" + // FidoCertifiedL3plus - The authenticator has passed FIDO Authenticator certification at level 3+. This level is more strict than level 3. + FidoCertifiedL3plus = "FIDO_CERTIFIED_L3plus" +) + +// UndesiredAuthenticatorStatus is an array of undesirable authenticator statuses +var UndesiredAuthenticatorStatus = [...]AuthenticatorStatus{ + AttestationKeyCompromise, + UserVerificationBypass, + UserKeyRemoteCompromise, + UserKeyPhysicalCompromise, + Revoked, +} + +// IsUndesiredAuthenticatorStatus returns whether the supplied authenticator status is desirable or not +func IsUndesiredAuthenticatorStatus(status AuthenticatorStatus) bool { + for _, s := range UndesiredAuthenticatorStatus { + if s == status { + return true + } + } + return false +} + +// StatusReport - Contains the current BiometricStatusReport of one of the authenticator's biometric component. +type StatusReport struct { + // Status of the authenticator. Additional fields MAY be set depending on this value. + Status string `json:"status"` + // ISO-8601 formatted date since when the status code was set, if applicable. If no date is given, the status is assumed to be effective while present. + EffectiveDate string `json:"effectiveDate"` + // Base64-encoded [RFC4648] (not base64url!) DER [ITU-X690-2008] PKIX certificate value related to the current status, if applicable. + Certificate string `json:"certificate"` + // HTTPS URL where additional information may be found related to the current status, if applicable. + URL string `json:"url"` + // Describes the externally visible aspects of the Authenticator Certification evaluation. + CertificationDescriptor string `json:"certificationDescriptor"` + // The unique identifier for the issued Certification. + CertificateNumber string `json:"certificateNumber"` + // The version of the Authenticator Certification Policy the implementation is Certified to, e.g. "1.0.0". + CertificationPolicyVersion string `json:"certificationPolicyVersion"` + // The Document Version of the Authenticator Security Requirements (DV) [FIDOAuthenticatorSecurityRequirements] the implementation is certified to, e.g. "1.2.0". + CertificationRequirementsVersion string `json:"certificationRequirementsVersion"` +} + +// BiometricStatusReport - Contains the current BiometricStatusReport of one of the authenticator's biometric component. +type BiometricStatusReport struct { + // Achieved level of the biometric certification of this biometric component of the authenticator + CertLevel uint16 `json:"certLevel"` + // A single USER_VERIFY constant indicating the modality of the biometric component + Modality uint32 `json:"modality"` + // ISO-8601 formatted date since when the certLevel achieved, if applicable. If no date is given, the status is assumed to be effective while present. + EffectiveDate string `json:"effectiveDate"` + // Describes the externally visible aspects of the Biometric Certification evaluation. + CertificationDescriptor string `json:"certificationDescriptor"` + // The unique identifier for the issued Biometric Certification. + CertificateNumber string `json:"certificateNumber"` + // The version of the Biometric Certification Policy the implementation is Certified to, e.g. "1.0.0". + CertificationPolicyVersion string `json:"certificationPolicyVersion"` + // The version of the Biometric Requirements [FIDOBiometricsRequirements] the implementation is certified to, e.g. "1.0.0". + CertificationRequirementsVersion string `json:"certificationRequirementsVersion"` +} + +// MetadataTOCPayloadEntry - Represents the MetadataTOCPayloadEntry +type MetadataTOCPayloadEntry struct { + // The AAID of the authenticator this metadata TOC payload entry relates to. + Aaid string `json:"aaid"` + // The Authenticator Attestation GUID. + AaGUID string `json:"aaguid"` + // A list of the attestation certificate public key identifiers encoded as hex string. + AttestationCertificateKeyIdentifiers []string `json:"attestationCertificateKeyIdentifiers"` + // The hash value computed over the base64url encoding of the UTF-8 representation of the JSON encoded metadata statement available at url and as defined in [FIDOMetadataStatement]. + Hash string `json:"hash"` + // Uniform resource locator (URL) of the encoded metadata statement for this authenticator model (identified by its AAID, AAGUID or attestationCertificateKeyIdentifier). + URL string `json:"url"` + // Status of the FIDO Biometric Certification of one or more biometric components of the Authenticator + BiometricStatusReports []BiometricStatusReport `json:"biometricStatusReports"` + // An array of status reports applicable to this authenticator. + StatusReports []StatusReport `json:"statusReports"` + // ISO-8601 formatted date since when the status report array was set to the current value. + TimeOfLastStatusChange string `json:"timeOfLastStatusChange"` + // URL of a list of rogue (i.e. untrusted) individual authenticators. + RogueListURL string `json:"rogueListURL"` + // The hash value computed over the Base64url encoding of the UTF-8 representation of the JSON encoded rogueList available at rogueListURL (with type rogueListEntry[]). + RogueListHash string `json:"rogueListHash"` + MetadataStatement MetadataStatement +} + +// RogueListEntry - Contains a list of individual authenticators known to be rogue +type RogueListEntry struct { + // Base64url encoding of the rogue authenticator's secret key + Sk string `json:"sk"` + // ISO-8601 formatted date since when this entry is effective. + Date string `json:"date"` +} + +// MetadataTOCPayload - Represents the MetadataTOCPayload +type MetadataTOCPayload struct { + // The legalHeader, if present, contains a legal guide for accessing and using metadata, which itself MAY contain URL(s) pointing to further information, such as a full Terms and Conditions statement. + LegalHeader string `json:"legalHeader"` + // The serial number of this UAF Metadata TOC Payload. Serial numbers MUST be consecutive and strictly monotonic, i.e. the successor TOC will have a no value exactly incremented by one. + Number int `json:"no"` + // ISO-8601 formatted date when the next update will be provided at latest. + NextUpdate string `json:"nextUpdate"` + // List of zero or more MetadataTOCPayloadEntry objects. + Entries []MetadataTOCPayloadEntry `json:"entries"` +} + +// Version - Represents a generic version with major and minor fields. +type Version struct { + // Major version. + Major uint16 `json:"major"` + // Minor version. + Minor uint16 `json:"minor"` +} + +// CodeAccuracyDescriptor describes the relevant accuracy/complexity aspects of passcode user verification methods. +type CodeAccuracyDescriptor struct { + // The numeric system base (radix) of the code, e.g. 10 in the case of decimal digits. + Base uint16 `json:"base"` + // The minimum number of digits of the given base required for that code, e.g. 4 in the case of 4 digits. + MinLength uint16 `json:"minLength"` + // Maximum number of false attempts before the authenticator will block this method (at least for some time). 0 means it will never block. + MaxRetries uint16 `json:"maxRetries"` + // Enforced minimum number of seconds wait time after blocking (e.g. due to forced reboot or similar). + // 0 means this user verification method will be blocked, either permanently or until an alternative user verification method method succeeded. + // All alternative user verification methods MUST be specified appropriately in the Metadata in userVerificationDetails. + BlockSlowdown uint16 `json:"blockSlowdown"` +} + +// The BiometricAccuracyDescriptor describes relevant accuracy/complexity aspects in the case of a biometric user verification method. +type BiometricAccuracyDescriptor struct { + // The false rejection rate [ISO19795-1] for a single template, i.e. the percentage of verification transactions with truthful claims of identity that are incorrectly denied. + SelfAttestedFRR int64 `json:"selfAttestedFRR "` + // The false acceptance rate [ISO19795-1] for a single template, i.e. the percentage of verification transactions with wrongful claims of identity that are incorrectly confirmed. + SelfAttestedFAR int64 `json:"selfAttestedFAR "` + // Maximum number of alternative templates from different fingers allowed. + MaxTemplates uint16 `json:"maxTemplates"` + // Maximum number of false attempts before the authenticator will block this method (at least for some time). 0 means it will never block. + MaxRetries uint16 `json:"maxRetries"` + // Enforced minimum number of seconds wait time after blocking (e.g. due to forced reboot or similar). + // 0 means that this user verification method will be blocked either permanently or until an alternative user verification method succeeded. + // All alternative user verification methods MUST be specified appropriately in the metadata in userVerificationDetails. + BlockSlowdown uint16 `json:"blockSlowdown"` +} + +// The PatternAccuracyDescriptor describes relevant accuracy/complexity aspects in the case that a pattern is used as the user verification method. +type PatternAccuracyDescriptor struct { + // Number of possible patterns (having the minimum length) out of which exactly one would be the right one, i.e. 1/probability in the case of equal distribution. + MinComplexity uint32 `json:"minComplexity"` + // Maximum number of false attempts before the authenticator will block authentication using this method (at least temporarily). 0 means it will never block. + MaxRetries uint16 `json:"maxRetries"` + // Enforced minimum number of seconds wait time after blocking (due to forced reboot or similar mechanism). + // 0 means this user verification method will be blocked, either permanently or until an alternative user verification method method succeeded. + // All alternative user verification methods MUST be specified appropriately in the metadata under userVerificationDetails. + BlockSlowdown uint16 `json:"blockSlowdown"` +} + +// VerificationMethodDescriptor - A descriptor for a specific base user verification method as implemented by the authenticator. +type VerificationMethodDescriptor struct { + // a single USER_VERIFY constant (see [FIDORegistry]), not a bit flag combination. This value MUST be non-zero. + UserVerification uint32 `json:"userVerification"` + // May optionally be used in the case of method USER_VERIFY_PASSCODE. + CaDesc CodeAccuracyDescriptor `json:"caDesc"` + // May optionally be used in the case of method USER_VERIFY_FINGERPRINT, USER_VERIFY_VOICEPRINT, USER_VERIFY_FACEPRINT, USER_VERIFY_EYEPRINT, or USER_VERIFY_HANDPRINT. + BaDesc BiometricAccuracyDescriptor `json:"baDesc"` + // May optionally be used in case of method USER_VERIFY_PATTERN. + PaDesc PatternAccuracyDescriptor `json:"paDesc"` +} + +// VerificationMethodANDCombinations MUST be non-empty. It is a list containing the base user verification methods which must be passed as part of a successful user verification. +type VerificationMethodANDCombinations struct { + //This list will contain only a single entry if using a single user verification method is sufficient. + // If this list contains multiple entries, then all of the listed user verification methods MUST be passed as part of the user verification process. + VerificationMethodAndCombinations []VerificationMethodDescriptor `json:"verificationMethodANDCombinations"` +} + +// The rgbPaletteEntry is an RGB three-sample tuple palette entry +type rgbPaletteEntry struct { + // Red channel sample value + R uint16 `json:"r"` + // Green channel sample value + G uint16 `json:"g"` + // Blue channel sample value + B uint16 `json:"b"` +} + +// The DisplayPNGCharacteristicsDescriptor describes a PNG image characteristics as defined in the PNG [PNG] spec for IHDR (image header) and PLTE (palette table) +type DisplayPNGCharacteristicsDescriptor struct { + // image width + Width uint32 `json:"width"` + // image height + Height uint32 `json:"height"` + // Bit depth - bits per sample or per palette index. + BitDepth byte `json:"bitDepth"` + // Color type defines the PNG image type. + ColorType byte `json:"colorType"` + // Compression method used to compress the image data. + Compression byte `json:"compression"` + // Filter method is the preprocessing method applied to the image data before compression. + Filter byte `json:"filter"` + // Interlace method is the transmission order of the image data. + Interlace byte `json:"interlace"` + // 1 to 256 palette entries + Plte []rgbPaletteEntry `json:"plte"` +} + +// EcdaaTrustAnchor - In the case of ECDAA attestation, the ECDAA-Issuer's trust anchor MUST be specified in this field. +type EcdaaTrustAnchor struct { + // base64url encoding of the result of ECPoint2ToB of the ECPoint2 X + X string `json:"x"` + // base64url encoding of the result of ECPoint2ToB of the ECPoint2 Y + Y string `json:"y"` + // base64url encoding of the result of BigNumberToB(c) + C string `json:"c"` + // base64url encoding of the result of BigNumberToB(sx) + SX string `json:"sx"` + // base64url encoding of the result of BigNumberToB(sy) + SY string `json:"sy"` + // Name of the Barreto-Naehrig elliptic curve for G1. "BN_P256", "BN_P638", "BN_ISOP256", and "BN_ISOP512" are supported. + G1Curve string `json:"G1Curve"` +} + +// ExtensionDescriptor - This descriptor contains an extension supported by the authenticator. +type ExtensionDescriptor struct { + // Identifies the extension. + ID string `json:"id"` + // The TAG of the extension if this was assigned. TAGs are assigned to extensions if they could appear in an assertion. + Tag uint16 `json:"tag"` + // Contains arbitrary data further describing the extension and/or data needed to correctly process the extension. + Data string `json:"data"` + // Indicates whether unknown extensions must be ignored (false) or must lead to an error (true) when the extension is to be processed by the FIDO Server, FIDO Client, ASM, or FIDO Authenticator. + FailIfUnknown bool `json:"fail_if_unknown"` +} + +// MetadataStatement - Authenticator metadata statements are used directly by the FIDO server at a relying party, but the information contained in the authoritative statement is used in several other places. +type MetadataStatement struct { + // The legalHeader, if present, contains a legal guide for accessing and using metadata, which itself MAY contain URL(s) pointing to further information, such as a full Terms and Conditions statement. + LegalHeader string `json:"legalHeader"` + // The Authenticator Attestation ID. + Aaid string `json:"aaid"` + // The Authenticator Attestation GUID. + AaGUID string `json:"aaguid"` + // A list of the attestation certificate public key identifiers encoded as hex string. + AttestationCertificateKeyIdentifiers []string `json:"attestationCertificateKeyIdentifiers"` + // A human-readable, short description of the authenticator, in English. + Description string `json:"description"` + // A list of human-readable short descriptions of the authenticator in different languages. + AlternativeDescriptions map[string]string `json:"alternativeDescriptions"` + // Earliest (i.e. lowest) trustworthy authenticatorVersion meeting the requirements specified in this metadata statement. + AuthenticatorVersion uint16 `json:"authenticatorVersion"` + // The FIDO protocol family. The values "uaf", "u2f", and "fido2" are supported. + ProtocolFamily string `json:"protocolFamily"` + // The FIDO unified protocol version(s) (related to the specific protocol family) supported by this authenticator. + Upv []Version `json:"upv"` + // The assertion scheme supported by the authenticator. + AssertionScheme string `json:"assertionScheme"` + // The preferred authentication algorithm supported by the authenticator. + AuthenticationAlgorithm uint16 `json:"authenticationAlgorithm"` + // The list of authentication algorithms supported by the authenticator. + AuthenticationAlgorithms []uint16 `json:"authenticationAlgorithms"` + // The preferred public key format used by the authenticator during registration operations. + PublicKeyAlgAndEncoding uint16 `json:"publicKeyAlgAndEncoding"` + // The list of public key formats supported by the authenticator during registration operations. + PublicKeyAlgAndEncodings []uint16 `json:"publicKeyAlgAndEncodings"` + // The supported attestation type(s). + AttestationTypes []uint16 `json:"attestationTypes"` + // A list of alternative VerificationMethodANDCombinations. + UserVerificationDetails [][]VerificationMethodDescriptor `json:"userVerificationDetails"` + // A 16-bit number representing the bit fields defined by the KEY_PROTECTION constants in the FIDO Registry of Predefined Values + KeyProtection uint16 `json:"keyProtection"` + // This entry is set to true or it is ommitted, if the Uauth private key is restricted by the authenticator to only sign valid FIDO signature assertions. + // This entry is set to false, if the authenticator doesn't restrict the Uauth key to only sign valid FIDO signature assertions. + IsKeyRestricted bool `json:"isKeyRestricted"` + // This entry is set to true or it is ommitted, if Uauth key usage always requires a fresh user verification + // This entry is set to false, if the Uauth key can be used without requiring a fresh user verification, e.g. without any additional user interaction, if the user was verified a (potentially configurable) caching time ago. + IsFreshUserVerificationRequired bool `json:"isFreshUserVerificationRequired"` + // A 16-bit number representing the bit fields defined by the MATCHER_PROTECTION constants in the FIDO Registry of Predefined Values + MatcherProtection uint16 `json:"matcherProtection"` + // The authenticator's overall claimed cryptographic strength in bits (sometimes also called security strength or security level). + CryptoStrength uint16 `json:"cryptoStrength"` + // Description of the particular operating environment that is used for the Authenticator. + OperatingEnv string `json:"operatingEnv"` + // A 32-bit number representing the bit fields defined by the ATTACHMENT_HINT constants in the FIDO Registry of Predefined Values + AttachmentHint uint32 `json:"attachmentHint"` + // Indicates if the authenticator is designed to be used only as a second factor, i.e. requiring some other authentication method as a first factor (e.g. username+password). + IsSecondFactorOnly bool `json:"isSecondFactorOnly"` + // A 16-bit number representing a combination of the bit flags defined by the TRANSACTION_CONFIRMATION_DISPLAY constants in the FIDO Registry of Predefined Values + TcDisplay uint16 `json:"tcDisplay"` + // Supported MIME content type [RFC2049] for the transaction confirmation display, such as text/plain or image/png. + TcDisplayContentType string `json:"tcDisplayContentType"` + // A list of alternative DisplayPNGCharacteristicsDescriptor. Each of these entries is one alternative of supported image characteristics for displaying a PNG image. + TcDisplayPNGCharacteristics []DisplayPNGCharacteristicsDescriptor `json:"tcDisplayPNGCharacteristics"` + // Each element of this array represents a PKIX [RFC5280] X.509 certificate that is a valid trust anchor for this authenticator model. + // Multiple certificates might be used for different batches of the same model. + // The array does not represent a certificate chain, but only the trust anchor of that chain. + // A trust anchor can be a root certificate, an intermediate CA certificate or even the attestation certificate itself. + AttestationRootCertificates []string `json:"attestationRootCertificates"` + // A list of trust anchors used for ECDAA attestation. This entry MUST be present if and only if attestationType includes ATTESTATION_ECDAA. + EcdaaTrustAnchors []EcdaaTrustAnchor `json:"ecdaaTrustAnchors"` + // A data: url [RFC2397] encoded PNG [PNG] icon for the Authenticator. + Icon string `json:"icon"` + // List of extensions supported by the authenticator. + SupportedExtensions []ExtensionDescriptor `json:"supportedExtensions"` +} + +// MDSGetEndpointsRequest is the request sent to the conformance metadata getEndpoints endpoint +type MDSGetEndpointsRequest struct { + // The URL of the local server endpoint, e.g. https://webauthn.io/ + Endpoint string `json:"endpoint"` +} + +// MDSGetEndpointsResponse is the response received from a conformance metadata getEndpoints request +type MDSGetEndpointsResponse struct { + // The status of the response + Status string `json:"status"` + // An array of urls, each pointing to a MetadataTOCPayload + Result []string `json:"result"` +} + +// ProcessMDSTOC processes a FIDO metadata table of contents object per §3.1.8, steps 1 through 5 +// FIDO Authenticator Metadata Service +// https://fidoalliance.org/specs/fido-v2.0-rd-20180702/fido-metadata-service-v2.0-rd-20180702.html#metadata-toc-object-processing-rules +func ProcessMDSTOC(url string, suffix string, c http.Client) (MetadataTOCPayload, string, error) { + var tocAlg string + var payload MetadataTOCPayload + // 1. The FIDO Server MUST be able to download the latest metadata TOC object from the well-known URL, when appropriate. + body, err := downloadBytes(url+suffix, c) + if err != nil { + return payload, tocAlg, err + } + // Steps 2 - 4 done in unmarshalMDSTOC. Caller is responsible for step 5. + return unmarshalMDSTOC(body, c) +} + +func unmarshalMDSTOC(body []byte, c http.Client) (MetadataTOCPayload, string, error) { + var tocAlg string + var payload MetadataTOCPayload + token, err := jwt.Parse(string(body), func(token *jwt.Token) (interface{}, error) { + // 2. If the x5u attribute is present in the JWT Header, then + if _, ok := token.Header["x5u"].([]interface{}); ok { + // never seen an x5u here, although it is in the spec + return nil, errors.New("x5u encountered in header of metadata TOC payload") + } + var chain []interface{} + // 3. If the x5u attribute is missing, the chain should be retrieved from the x5c attribute. + + if x5c, ok := token.Header["x5c"].([]interface{}); !ok { + // If that attribute is missing as well, Metadata TOC signing trust anchor is considered the TOC signing certificate chain. + root, err := getMetdataTOCSigningTrustAnchor(c) + if nil != err { + return nil, err + } + chain[0] = root + } else { + chain = x5c + } + + // The certificate chain MUST be verified to properly chain to the metadata TOC signing trust anchor + valid, err := validateChain(chain, c) + if !valid || err != nil { + return nil, err + } + // chain validated, extract the TOC signing certificate from the chain + + // create a buffer large enough to hold the certificate bytes + o := make([]byte, base64.StdEncoding.DecodedLen(len(chain[0].(string)))) + // base64 decode the certificate into the buffer + n, err := base64.StdEncoding.Decode(o, []byte(chain[0].(string))) + // parse the certificate from the buffer + cert, err := x509.ParseCertificate(o[:n]) + if err != nil { + return nil, err + } + // 4. Verify the signature of the Metadata TOC object using the TOC signing certificate chain + // jwt.Parse() uses the TOC signing certificate public key internally to verify the signature + return cert.PublicKey, err + }) + if err != nil { + return payload, tocAlg, err + } + + tocAlg = token.Header["alg"].(string) + err = mapstructure.Decode(token.Claims, &payload) + + return payload, tocAlg, err +} + +func getMetdataTOCSigningTrustAnchor(c http.Client) ([]byte, error) { + rooturl := "" + if Conformance { + rooturl = "https://fidoalliance.co.nz/mds/pki/MDSROOT.crt" + } else { + rooturl = "https://mds.fidoalliance.org/Root.cer" + } + + return downloadBytes(rooturl, c) +} + +func validateChain(chain []interface{}, c http.Client) (bool, error) { + root, err := getMetdataTOCSigningTrustAnchor(c) + if err != nil { + return false, err + } + + roots := x509.NewCertPool() + + ok := roots.AppendCertsFromPEM(root) + if !ok { + return false, err + } + + o := make([]byte, base64.StdEncoding.DecodedLen(len(chain[1].(string)))) + n, err := base64.StdEncoding.Decode(o, []byte(chain[1].(string))) + if err != nil { + return false, err + } + intcert, err := x509.ParseCertificate(o[:n]) + if err != nil { + return false, err + } + + if revoked, ok := revoke.VerifyCertificate(intcert); !ok { + return false, errCRLUnavailable + } else if revoked { + return false, errIntermediateCertRevoked + } + + ints := x509.NewCertPool() + ints.AddCert(intcert) + + l := make([]byte, base64.StdEncoding.DecodedLen(len(chain[0].(string)))) + n, err = base64.StdEncoding.Decode(l, []byte(chain[0].(string))) + if err != nil { + return false, err + } + leafcert, err := x509.ParseCertificate(l[:n]) + if err != nil { + return false, err + } + if revoked, ok := revoke.VerifyCertificate(leafcert); !ok { + return false, errCRLUnavailable + } else if revoked { + return false, errLeafCertRevoked + } + + opts := x509.VerifyOptions{ + Roots: roots, + Intermediates: ints, + } + _, err = leafcert.Verify(opts) + return err == nil, err +} + +// GetMetadataStatement iterates through a list of payload entries within a FIDO metadata table of contents object per §3.1.8, step 6 +// FIDO Authenticator Metadata Service +// https://fidoalliance.org/specs/fido-v2.0-rd-20180702/fido-metadata-service-v2.0-rd-20180702.html#metadata-toc-object-processing-rules +func GetMetadataStatement(entry MetadataTOCPayloadEntry, suffix string, alg string, c http.Client) (MetadataStatement, error) { + var statement MetadataStatement + // 1. Ignore the entry if the AAID, AAGUID or attestationCertificateKeyIdentifiers is not relevant to the relying party (e.g. not acceptable by any policy) + // Caller is responsible for determining if entry is relevant. + + // 2. Download the metadata statement from the URL specified by the field url. + body, err := downloadBytes(entry.URL+suffix, c) + if err != nil { + return statement, err + } + // 3. Check whether the status report of the authenticator model has changed compared to the cached entry by looking at the fields timeOfLastStatusChange and statusReport. + // Caller is responsible for cache + + // step 4 done in unmarshalMetadataStatement, caller is responsible for step 5 + return unmarshalMetadataStatement(body, entry.Hash) +} + +func unmarshalMetadataStatement(body []byte, hash string) (MetadataStatement, error) { + // 4. Compute the hash value of the metadata statement downloaded from the URL and verify the hash value to the hash specified in the field hash of the metadata TOC object. + var statement MetadataStatement + + entryHash, err := base64.URLEncoding.DecodeString(hash) + if err != nil { + entryHash, err = base64.RawURLEncoding.DecodeString(hash) + } + if err != nil { + return statement, err + } + + // TODO: Get hasher based on MDS TOC alg instead of assuming SHA256 + hasher := crypto.SHA256.New() + _, _ = hasher.Write(body) + hashed := hasher.Sum(nil) + // Ignore the downloaded metadata statement if the hash value doesn't match. + if !bytes.Equal(hashed, entryHash) { + return statement, errHashValueMismatch + } + + // Extract the metadata statement from base64 encoded form + n := base64.URLEncoding.DecodedLen(len(body)) + out := make([]byte, n) + m, err := base64.URLEncoding.Decode(out, body) + if err != nil { + return statement, err + } + // Unmarshal the metadata statement into a MetadataStatement structure and return it to caller + err = json.Unmarshal(out[:m], &statement) + return statement, err +} + +func downloadBytes(url string, c http.Client) ([]byte, error) { + res, err := c.Get(url) + if err != nil { + return nil, err + } + defer res.Body.Close() + body, _ := ioutil.ReadAll(res.Body) + return body, err +} + +type MetadataError struct { + // Short name for the type of error that has occurred + Type string `json:"type"` + // Additional details about the error + Details string `json:"error"` + // Information to help debug the error + DevInfo string `json:"debug"` +} + +var ( + errHashValueMismatch = &MetadataError{ + Type: "hash_mismatch", + Details: "Hash value mismatch between entry.Hash and downloaded bytes", + } + errIntermediateCertRevoked = &MetadataError{ + Type: "intermediate_revoked", + Details: "Intermediate certificate is on issuers revocation list", + } + errLeafCertRevoked = &MetadataError{ + Type: "leaf_revoked", + Details: "Leaf certificate is on issuers revocation list", + } + errCRLUnavailable = &MetadataError{ + Type: "crl_unavailable", + Details: "Certificate revocation list is unavailable", + } +) + +func (err *MetadataError) Error() string { + return err.Details +} diff --git a/vendor/github.com/duo-labs/webauthn/protocol/assertion.go b/vendor/github.com/duo-labs/webauthn/protocol/assertion.go new file mode 100644 index 0000000000000..1dd8e3952b56b --- /dev/null +++ b/vendor/github.com/duo-labs/webauthn/protocol/assertion.go @@ -0,0 +1,155 @@ +package protocol + +import ( + "crypto/sha256" + "encoding/base64" + "encoding/json" + "fmt" + "io" + "net/http" + + "github.com/duo-labs/webauthn/protocol/webauthncose" +) + +// The raw response returned to us from an authenticator when we request a +// credential for login/assertion. +type CredentialAssertionResponse struct { + PublicKeyCredential + AssertionResponse AuthenticatorAssertionResponse `json:"response"` +} + +// The parsed CredentialAssertionResponse that has been marshalled into a format +// that allows us to verify the client and authenticator data inside the response +type ParsedCredentialAssertionData struct { + ParsedPublicKeyCredential + Response ParsedAssertionResponse + Raw CredentialAssertionResponse +} + +// The AuthenticatorAssertionResponse contains the raw authenticator assertion data and is parsed into +// ParsedAssertionResponse +type AuthenticatorAssertionResponse struct { + AuthenticatorResponse + AuthenticatorData URLEncodedBase64 `json:"authenticatorData"` + Signature URLEncodedBase64 `json:"signature"` + UserHandle URLEncodedBase64 `json:"userHandle,omitempty"` +} + +// Parsed form of AuthenticatorAssertionResponse +type ParsedAssertionResponse struct { + CollectedClientData CollectedClientData + AuthenticatorData AuthenticatorData + Signature []byte + UserHandle []byte +} + +// Parse the credential request response into a format that is either required by the specification +// or makes the assertion verification steps easier to complete. This takes an http.Request that contains +// the assertion response data in a raw, mostly base64 encoded format, and parses the data into +// manageable structures +func ParseCredentialRequestResponse(response *http.Request) (*ParsedCredentialAssertionData, error) { + if response == nil || response.Body == nil { + return nil, ErrBadRequest.WithDetails("No response given") + } + return ParseCredentialRequestResponseBody(response.Body) +} + +// Parse the credential request response into a format that is either required by the specification +// or makes the assertion verification steps easier to complete. This takes an io.Reader that contains +// the assertion response data in a raw, mostly base64 encoded format, and parses the data into +// manageable structures +func ParseCredentialRequestResponseBody(body io.Reader) (*ParsedCredentialAssertionData, error) { + var car CredentialAssertionResponse + err := json.NewDecoder(body).Decode(&car) + if err != nil { + return nil, ErrBadRequest.WithDetails("Parse error for Assertion") + } + + if car.ID == "" { + return nil, ErrBadRequest.WithDetails("CredentialAssertionResponse with ID missing") + } + + _, err = base64.RawURLEncoding.DecodeString(car.ID) + if err != nil { + return nil, ErrBadRequest.WithDetails("CredentialAssertionResponse with ID not base64url encoded") + } + if car.Type != "public-key" { + return nil, ErrBadRequest.WithDetails("CredentialAssertionResponse with bad type") + } + var par ParsedCredentialAssertionData + par.ID, par.RawID, par.Type, par.ClientExtensionResults = car.ID, car.RawID, car.Type, car.ClientExtensionResults + par.Raw = car + + par.Response.Signature = car.AssertionResponse.Signature + par.Response.UserHandle = car.AssertionResponse.UserHandle + + // Step 5. Let JSONtext be the result of running UTF-8 decode on the value of cData. + // We don't call it cData but this is Step 5 in the spec. + err = json.Unmarshal(car.AssertionResponse.ClientDataJSON, &par.Response.CollectedClientData) + if err != nil { + return nil, err + } + + err = par.Response.AuthenticatorData.Unmarshal(car.AssertionResponse.AuthenticatorData) + if err != nil { + return nil, ErrParsingData.WithDetails("Error unmarshalling auth data") + } + return &par, nil +} + +// Follow the remaining steps outlined in §7.2 Verifying an authentication assertion +// (https://www.w3.org/TR/webauthn/#verifying-assertion) and return an error if there +// is a failure during each step. +func (p *ParsedCredentialAssertionData) Verify(storedChallenge string, relyingPartyID, relyingPartyOrigin, appID string, verifyUser bool, credentialBytes []byte) error { + // Steps 4 through 6 in verifying the assertion data (https://www.w3.org/TR/webauthn/#verifying-assertion) are + // "assertive" steps, i.e "Let JSONtext be the result of running UTF-8 decode on the value of cData." + // We handle these steps in part as we verify but also beforehand + + // Handle steps 7 through 10 of assertion by verifying stored data against the Collected Client Data + // returned by the authenticator + validError := p.Response.CollectedClientData.Verify(storedChallenge, AssertCeremony, relyingPartyOrigin) + if validError != nil { + return validError + } + + // Begin Step 11. Verify that the rpIdHash in authData is the SHA-256 hash of the RP ID expected by the RP. + rpIDHash := sha256.Sum256([]byte(relyingPartyID)) + + var appIDHash [32]byte + if appID != "" { + appIDHash = sha256.Sum256([]byte(appID)) + } + + // Handle steps 11 through 14, verifying the authenticator data. + validError = p.Response.AuthenticatorData.Verify(rpIDHash[:], appIDHash[:], verifyUser) + if validError != nil { + return ErrAuthData.WithInfo(validError.Error()) + } + + // allowedUserCredentialIDs := session.AllowedCredentialIDs + + // Step 15. Let hash be the result of computing a hash over the cData using SHA-256. + clientDataHash := sha256.Sum256(p.Raw.AssertionResponse.ClientDataJSON) + + // Step 16. Using the credential public key looked up in step 3, verify that sig is + // a valid signature over the binary concatenation of authData and hash. + + sigData := append(p.Raw.AssertionResponse.AuthenticatorData, clientDataHash[:]...) + + var ( + key interface{} + err error + ) + + if appID == "" { + key, err = webauthncose.ParsePublicKey(credentialBytes) + } else { + key, err = webauthncose.ParseFIDOPublicKey(credentialBytes) + } + + valid, err := webauthncose.VerifySignature(key, sigData, p.Response.Signature) + if !valid { + return ErrAssertionSignature.WithDetails(fmt.Sprintf("Error validating the assertion signature: %+v\n", err)) + } + return nil +} diff --git a/vendor/github.com/duo-labs/webauthn/protocol/attestation.go b/vendor/github.com/duo-labs/webauthn/protocol/attestation.go new file mode 100644 index 0000000000000..9362c5f59c363 --- /dev/null +++ b/vendor/github.com/duo-labs/webauthn/protocol/attestation.go @@ -0,0 +1,156 @@ +package protocol + +import ( + "crypto/sha256" + "encoding/json" + "fmt" + + "github.com/fxamacker/cbor/v2" +) + +// From §5.2.1 (https://www.w3.org/TR/webauthn/#authenticatorattestationresponse) +// "The authenticator's response to a client’s request for the creation +// of a new public key credential. It contains information about the new credential +// that can be used to identify it for later use, and metadata that can be used by +// the WebAuthn Relying Party to assess the characteristics of the credential +// during registration." + +// The initial unpacked 'response' object received by the relying party. This +// contains the clientDataJSON object, which will be marshalled into +// CollectedClientData, and the 'attestationObject', which contains +// information about the authenticator, and the newly minted +// public key credential. The information in both objects are used +// to verify the authenticity of the ceremony and new credential +type AuthenticatorAttestationResponse struct { + // The byte slice of clientDataJSON, which becomes CollectedClientData + AuthenticatorResponse + // The byte slice version of AttestationObject + // This attribute contains an attestation object, which is opaque to, and + // cryptographically protected against tampering by, the client. The + // attestation object contains both authenticator data and an attestation + // statement. The former contains the AAGUID, a unique credential ID, and + // the credential public key. The contents of the attestation statement are + // determined by the attestation statement format used by the authenticator. + // It also contains any additional information that the Relying Party's server + // requires to validate the attestation statement, as well as to decode and + // validate the authenticator data along with the JSON-serialized client data. + AttestationObject URLEncodedBase64 `json:"attestationObject"` +} + +// The parsed out version of AuthenticatorAttestationResponse. +type ParsedAttestationResponse struct { + CollectedClientData CollectedClientData + AttestationObject AttestationObject +} + +// From §6.4. Authenticators MUST also provide some form of attestation. The basic requirement is that the +// authenticator can produce, for each credential public key, an attestation statement verifiable by the +// WebAuthn Relying Party. Typically, this attestation statement contains a signature by an attestation +// private key over the attested credential public key and a challenge, as well as a certificate or similar +// data providing provenance information for the attestation public key, enabling the Relying Party to make +// a trust decision. However, if an attestation key pair is not available, then the authenticator MUST +// perform self attestation of the credential public key with the corresponding credential private key. +// All this information is returned by authenticators any time a new public key credential is generated, in +// the overall form of an attestation object. (https://www.w3.org/TR/webauthn/#attestation-object) +// +type AttestationObject struct { + // The authenticator data, including the newly created public key. See AuthenticatorData for more info + AuthData AuthenticatorData + // The byteform version of the authenticator data, used in part for signature validation + RawAuthData []byte `json:"authData"` + // The format of the Attestation data. + Format string `json:"fmt"` + // The attestation statement data sent back if attestation is requested. + AttStatement map[string]interface{} `json:"attStmt,omitempty"` +} + +type attestationFormatValidationHandler func(AttestationObject, []byte) (string, []interface{}, error) + +var attestationRegistry = make(map[string]attestationFormatValidationHandler) + +// Using one of the locally registered attestation formats, handle validating the attestation +// data provided by the authenticator (and in some cases its manufacturer) +func RegisterAttestationFormat(format string, handler attestationFormatValidationHandler) { + attestationRegistry[format] = handler +} + +// Parse the values returned in the authenticator response and perform attestation verification +// Step 8. This returns a fully decoded struct with the data put into a format that can be +// used to verify the user and credential that was created +func (ccr *AuthenticatorAttestationResponse) Parse() (*ParsedAttestationResponse, error) { + var p ParsedAttestationResponse + + err := json.Unmarshal(ccr.ClientDataJSON, &p.CollectedClientData) + if err != nil { + return nil, ErrParsingData.WithInfo(err.Error()) + } + + err = cbor.Unmarshal(ccr.AttestationObject, &p.AttestationObject) + if err != nil { + return nil, ErrParsingData.WithInfo(err.Error()) + } + + // Step 8. Perform CBOR decoding on the attestationObject field of the AuthenticatorAttestationResponse + // structure to obtain the attestation statement format fmt, the authenticator data authData, and + // the attestation statement attStmt. + err = p.AttestationObject.AuthData.Unmarshal(p.AttestationObject.RawAuthData) + if err != nil { + return nil, fmt.Errorf("error decoding auth data: %v", err) + } + + if !p.AttestationObject.AuthData.Flags.HasAttestedCredentialData() { + return nil, ErrAttestationFormat.WithInfo("Attestation missing attested credential data flag") + } + + return &p, nil +} + +// Verify - Perform Steps 9 through 14 of registration verification, delegating Steps +func (attestationObject *AttestationObject) Verify(relyingPartyID string, clientDataHash []byte, verificationRequired bool) error { + // Steps 9 through 12 are verified against the auth data. + // These steps are identical to 11 through 14 for assertion + // so we handle them with AuthData + + // Begin Step 9. Verify that the rpIdHash in authData is + // the SHA-256 hash of the RP ID expected by the RP. + rpIDHash := sha256.Sum256([]byte(relyingPartyID)) + // Handle Steps 9 through 12 + authDataVerificationError := attestationObject.AuthData.Verify(rpIDHash[:], nil, verificationRequired) + if authDataVerificationError != nil { + return authDataVerificationError + } + + // Step 13. Determine the attestation statement format by performing a + // USASCII case-sensitive match on fmt against the set of supported + // WebAuthn Attestation Statement Format Identifier values. The up-to-date + // list of registered WebAuthn Attestation Statement Format Identifier + // values is maintained in the IANA registry of the same name + // [WebAuthn-Registries] (https://www.w3.org/TR/webauthn/#biblio-webauthn-registries). + + // Since there is not an active registry yet, we'll check it against our internal + // Supported types. + + // But first let's make sure attestation is present. If it isn't, we don't need to handle + // any of the following steps + if attestationObject.Format == "none" { + if len(attestationObject.AttStatement) != 0 { + return ErrAttestationFormat.WithInfo("Attestation format none with attestation present") + } + return nil + } + + formatHandler, valid := attestationRegistry[attestationObject.Format] + if !valid { + return ErrAttestationFormat.WithInfo(fmt.Sprintf("Attestation format %s is unsupported", attestationObject.Format)) + } + + // Step 14. Verify that attStmt is a correct attestation statement, conveying a valid attestation signature, by using + // the attestation statement format fmt’s verification procedure given attStmt, authData and the hash of the serialized + // client data computed in step 7. + attestationType, _, err := formatHandler(*attestationObject, clientDataHash) + if err != nil { + return err.(*Error).WithInfo(attestationType) + } + + return nil +} diff --git a/vendor/github.com/duo-labs/webauthn/protocol/attestation_androidkey.go b/vendor/github.com/duo-labs/webauthn/protocol/attestation_androidkey.go new file mode 100644 index 0000000000000..6358ff0c7debf --- /dev/null +++ b/vendor/github.com/duo-labs/webauthn/protocol/attestation_androidkey.go @@ -0,0 +1,227 @@ +package protocol + +import ( + "bytes" + "crypto/x509" + "encoding/asn1" + "fmt" + + "github.com/duo-labs/webauthn/protocol/webauthncose" +) + +var androidAttestationKey = "android-key" + +func init() { + RegisterAttestationFormat(androidAttestationKey, verifyAndroidKeyFormat) +} + +// From §8.4. https://www.w3.org/TR/webauthn/#android-key-attestation +// The android-key attestation statement looks like: +// $$attStmtType //= ( +// fmt: "android-key", +// attStmt: androidStmtFormat +// ) +// androidStmtFormat = { +// alg: COSEAlgorithmIdentifier, +// sig: bytes, +// x5c: [ credCert: bytes, * (caCert: bytes) ] +// } +func verifyAndroidKeyFormat(att AttestationObject, clientDataHash []byte) (string, []interface{}, error) { + // Given the verification procedure inputs attStmt, authenticatorData and clientDataHash, the verification procedure is as follows: + // §8.4.1. Verify that attStmt is valid CBOR conforming to the syntax defined above and perform CBOR decoding on it to extract + // the contained fields. + + // Get the alg value - A COSEAlgorithmIdentifier containing the identifier of the algorithm + // used to generate the attestation signature. + alg, present := att.AttStatement["alg"].(int64) + if !present { + return androidAttestationKey, nil, ErrAttestationFormat.WithDetails("Error retreiving alg value") + } + + // Get the sig value - A byte string containing the attestation signature. + sig, present := att.AttStatement["sig"].([]byte) + if !present { + return androidAttestationKey, nil, ErrAttestationFormat.WithDetails("Error retreiving sig value") + } + + // If x5c is not present, return an error + x5c, x509present := att.AttStatement["x5c"].([]interface{}) + if !x509present { + // Handle Basic Attestation steps for the x509 Certificate + return androidAttestationKey, nil, ErrAttestationFormat.WithDetails("Error retreiving x5c value") + } + + // §8.4.2. Verify that sig is a valid signature over the concatenation of authenticatorData and clientDataHash + // using the public key in the first certificate in x5c with the algorithm specified in alg. + attCertBytes, valid := x5c[0].([]byte) + if !valid { + return androidAttestationKey, nil, ErrAttestation.WithDetails("Error getting certificate from x5c cert chain") + } + + signatureData := append(att.RawAuthData, clientDataHash...) + + attCert, err := x509.ParseCertificate(attCertBytes) + if err != nil { + return androidAttestationKey, nil, ErrAttestationFormat.WithDetails(fmt.Sprintf("Error parsing certificate from ASN.1 data: %+v", err)) + } + + coseAlg := webauthncose.COSEAlgorithmIdentifier(alg) + sigAlg := webauthncose.SigAlgFromCOSEAlg(coseAlg) + err = attCert.CheckSignature(x509.SignatureAlgorithm(sigAlg), signatureData, sig) + if err != nil { + return androidAttestationKey, nil, ErrInvalidAttestation.WithDetails(fmt.Sprintf("Signature validation error: %+v\n", err)) + } + // Verify that the public key in the first certificate in x5c matches the credentialPublicKey in the attestedCredentialData in authenticatorData. + pubKey, err := webauthncose.ParsePublicKey(att.AuthData.AttData.CredentialPublicKey) + if err != nil { + return androidAttestationKey, nil, ErrInvalidAttestation.WithDetails(fmt.Sprintf("Error parsing public key: %+v\n", err)) + } + e := pubKey.(webauthncose.EC2PublicKeyData) + valid, err = e.Verify(signatureData, sig) + if err != nil || valid != true { + return androidAttestationKey, nil, ErrInvalidAttestation.WithDetails(fmt.Sprintf("Error parsing public key: %+v\n", err)) + } + // §8.4.3. Verify that the attestationChallenge field in the attestation certificate extension data is identical to clientDataHash. + // attCert.Extensions + var attExtBytes []byte + for _, ext := range attCert.Extensions { + if ext.Id.Equal([]int{1, 3, 6, 1, 4, 1, 11129, 2, 1, 17}) { + attExtBytes = ext.Value + } + } + if len(attExtBytes) == 0 { + return androidAttestationKey, nil, ErrAttestationFormat.WithDetails("Attestation certificate extensions missing 1.3.6.1.4.1.11129.2.1.17") + } + // As noted in §8.4.1 (https://w3c.github.io/webauthn/#key-attstn-cert-requirements) the Android Key Attestation attestation certificate's + // android key attestation certificate extension data is identified by the OID "1.3.6.1.4.1.11129.2.1.17". + decoded := keyDescription{} + _, err = asn1.Unmarshal([]byte(attExtBytes), &decoded) + if err != nil { + return androidAttestationKey, nil, ErrAttestationFormat.WithDetails("Unable to parse Android key attestation certificate extensions") + } + // Verify that the attestationChallenge field in the attestation certificate extension data is identical to clientDataHash. + if 0 != bytes.Compare(decoded.AttestationChallenge, clientDataHash) { + return androidAttestationKey, nil, ErrAttestationFormat.WithDetails("Attestation challenge not equal to clientDataHash") + } + // The AuthorizationList.allApplications field is not present on either authorization list (softwareEnforced nor teeEnforced), since PublicKeyCredential MUST be scoped to the RP ID. + if nil != decoded.SoftwareEnforced.AllApplications || nil != decoded.TeeEnforced.AllApplications { + return androidAttestationKey, nil, ErrAttestationFormat.WithDetails("Attestation certificate extensions contains all applications field") + } + // For the following, use only the teeEnforced authorization list if the RP wants to accept only keys from a trusted execution environment, otherwise use the union of teeEnforced and softwareEnforced. + // The value in the AuthorizationList.origin field is equal to KM_ORIGIN_GENERATED. (which == 0) + if KM_ORIGIN_GENERATED != decoded.SoftwareEnforced.Origin || KM_ORIGIN_GENERATED != decoded.TeeEnforced.Origin { + return androidAttestationKey, nil, ErrAttestationFormat.WithDetails("Attestation certificate extensions contains authorization list with origin not equal KM_ORIGIN_GENERATED") + } + // The value in the AuthorizationList.purpose field is equal to KM_PURPOSE_SIGN. (which == 2) + if !contains(decoded.SoftwareEnforced.Purpose, KM_PURPOSE_SIGN) && !contains(decoded.TeeEnforced.Purpose, KM_PURPOSE_SIGN) { + return androidAttestationKey, nil, ErrAttestationFormat.WithDetails("Attestation certificate extensions contains authorization list with purpose not equal KM_PURPOSE_SIGN") + } + return androidAttestationKey, x5c, err +} + +func contains(s []int, e int) bool { + for _, a := range s { + if a == e { + return true + } + } + return false +} + +type keyDescription struct { + AttestationVersion int + AttestationSecurityLevel asn1.Enumerated + KeymasterVersion int + KeymasterSecurityLevel asn1.Enumerated + AttestationChallenge []byte + UniqueID []byte + SoftwareEnforced authorizationList + TeeEnforced authorizationList +} + +type authorizationList struct { + Purpose []int `asn1:"tag:1,explicit,set,optional"` + Algorithm int `asn1:"tag:2,explicit,optional"` + KeySize int `asn1:"tag:3,explicit,optional"` + Digest []int `asn1:"tag:5,explicit,set,optional"` + Padding []int `asn1:"tag:6,explicit,set,optional"` + EcCurve int `asn1:"tag:10,explicit,optional"` + RsaPublicExponent int `asn1:"tag:200,explicit,optional"` + RollbackResistance interface{} `asn1:"tag:303,explicit,optional"` + ActiveDateTime int `asn1:"tag:400,explicit,optional"` + OriginationExpireDateTime int `asn1:"tag:401,explicit,optional"` + UsageExpireDateTime int `asn1:"tag:402,explicit,optional"` + NoAuthRequired interface{} `asn1:"tag:503,explicit,optional"` + UserAuthType int `asn1:"tag:504,explicit,optional"` + AuthTimeout int `asn1:"tag:505,explicit,optional"` + AllowWhileOnBody interface{} `asn1:"tag:506,explicit,optional"` + TrustedUserPresenceRequired interface{} `asn1:"tag:507,explicit,optional"` + TrustedConfirmationRequired interface{} `asn1:"tag:508,explicit,optional"` + UnlockedDeviceRequired interface{} `asn1:"tag:509,explicit,optional"` + AllApplications interface{} `asn1:"tag:600,explicit,optional"` + ApplicationID interface{} `asn1:"tag:601,explicit,optional"` + CreationDateTime int `asn1:"tag:701,explicit,optional"` + Origin int `asn1:"tag:702,explicit,optional"` + RootOfTrust rootOfTrust `asn1:"tag:704,explicit,optional"` + OsVersion int `asn1:"tag:705,explicit,optional"` + OsPatchLevel int `asn1:"tag:706,explicit,optional"` + AttestationApplicationID []byte `asn1:"tag:709,explicit,optional"` + AttestationIDBrand []byte `asn1:"tag:710,explicit,optional"` + AttestationIDDevice []byte `asn1:"tag:711,explicit,optional"` + AttestationIDProduct []byte `asn1:"tag:712,explicit,optional"` + AttestationIDSerial []byte `asn1:"tag:713,explicit,optional"` + AttestationIDImei []byte `asn1:"tag:714,explicit,optional"` + AttestationIDMeid []byte `asn1:"tag:715,explicit,optional"` + AttestationIDManufacturer []byte `asn1:"tag:716,explicit,optional"` + AttestationIDModel []byte `asn1:"tag:717,explicit,optional"` + VendorPatchLevel int `asn1:"tag:718,explicit,optional"` + BootPatchLevel int `asn1:"tag:719,explicit,optional"` +} + +type rootOfTrust struct { + verifiedBootKey []byte + deviceLocked bool + verifiedBootState verifiedBootState + verifiedBootHash []byte +} + +type verifiedBootState int + +const ( + Verified verifiedBootState = iota + SelfSigned + Unverified + Failed +) + +/** + * The origin of a key (or pair), i.e. where it was generated. Note that KM_TAG_ORIGIN can be found + * in either the hardware-enforced or software-enforced list for a key, indicating whether the key + * is hardware or software-based. Specifically, a key with KM_ORIGIN_GENERATED in the + * hardware-enforced list is guaranteed never to have existed outide the secure hardware. + */ +type KM_KEY_ORIGIN int + +const ( + KM_ORIGIN_GENERATED = iota /* Generated in keymaster. Should not exist outside the TEE. */ + KM_ORIGIN_DERIVED /* Derived inside keymaster. Likely exists off-device. */ + KM_ORIGIN_IMPORTED /* Imported into keymaster. Existed as cleartext in Android. */ + KM_ORIGIN_UNKNOWN /* Keymaster did not record origin. This value can only be seen on + * keys in a keymaster0 implementation. The keymaster0 adapter uses + * this value to document the fact that it is unkown whether the key + * was generated inside or imported into keymaster. */ +) + +/** + * Possible purposes of a key (or pair). + */ +type KM_PURPOSE int + +const ( + KM_PURPOSE_ENCRYPT = iota /* Usable with RSA, EC and AES keys. */ + KM_PURPOSE_DECRYPT /* Usable with RSA, EC and AES keys. */ + KM_PURPOSE_SIGN /* Usable with RSA, EC and HMAC keys. */ + KM_PURPOSE_VERIFY /* Usable with RSA, EC and HMAC keys. */ + KM_PURPOSE_DERIVE_KEY /* Usable with EC keys. */ + KM_PURPOSE_WRAP /* Usable with wrapped keys. */ +) diff --git a/vendor/github.com/duo-labs/webauthn/protocol/attestation_apple.go b/vendor/github.com/duo-labs/webauthn/protocol/attestation_apple.go new file mode 100644 index 0000000000000..78edce410a29c --- /dev/null +++ b/vendor/github.com/duo-labs/webauthn/protocol/attestation_apple.go @@ -0,0 +1,104 @@ +package protocol + +import ( + "bytes" + "crypto/ecdsa" + "crypto/elliptic" + "crypto/sha256" + "crypto/x509" + "encoding/asn1" + "fmt" + "math/big" + + "github.com/duo-labs/webauthn/protocol/webauthncose" +) + +var appleAttestationKey = "apple" + +func init() { + RegisterAttestationFormat(appleAttestationKey, verifyAppleKeyFormat) +} + +// From §8.8. https://www.w3.org/TR/webauthn-2/#sctn-apple-anonymous-attestation +// The apple attestation statement looks like: +// $$attStmtType //= ( +// fmt: "apple", +// attStmt: appleStmtFormat +// ) +// appleStmtFormat = { +// x5c: [ credCert: bytes, * (caCert: bytes) ] +// } +func verifyAppleKeyFormat(att AttestationObject, clientDataHash []byte) (string, []interface{}, error) { + + // Step 1. Verify that attStmt is valid CBOR conforming to the syntax defined + // above and perform CBOR decoding on it to extract the contained fields. + + // If x5c is not present, return an error + x5c, x509present := att.AttStatement["x5c"].([]interface{}) + if !x509present { + // Handle Basic Attestation steps for the x509 Certificate + return appleAttestationKey, nil, ErrAttestationFormat.WithDetails("Error retreiving x5c value") + } + + credCertBytes, valid := x5c[0].([]byte) + if !valid { + return appleAttestationKey, nil, ErrAttestation.WithDetails("Error getting certificate from x5c cert chain") + } + + credCert, err := x509.ParseCertificate(credCertBytes) + if err != nil { + return appleAttestationKey, nil, ErrAttestationFormat.WithDetails(fmt.Sprintf("Error parsing certificate from ASN.1 data: %+v", err)) + } + + // Step 2. Concatenate authenticatorData and clientDataHash to form nonceToHash. + nonceToHash := append(att.RawAuthData, clientDataHash...) + + // Step 3. Perform SHA-256 hash of nonceToHash to produce nonce. + nonce := sha256.Sum256(nonceToHash) + + // Step 4. Verify that nonce equals the value of the extension with OID 1.2.840.113635.100.8.2 in credCert. + var attExtBytes []byte + for _, ext := range credCert.Extensions { + if ext.Id.Equal([]int{1, 2, 840, 113635, 100, 8, 2}) { + attExtBytes = ext.Value + } + } + if len(attExtBytes) == 0 { + return appleAttestationKey, nil, ErrAttestationFormat.WithDetails("Attestation certificate extensions missing 1.2.840.113635.100.8.2") + } + + decoded := AppleAnonymousAttestation{} + _, err = asn1.Unmarshal([]byte(attExtBytes), &decoded) + if err != nil { + return appleAttestationKey, nil, ErrAttestationFormat.WithDetails("Unable to parse apple attestation certificate extensions") + } + + if !bytes.Equal(decoded.Nonce, nonce[:]) || err != nil { + return appleAttestationKey, nil, ErrInvalidAttestation.WithDetails("Attestation certificate does not contain expected nonce") + } + + // Step 5. Verify that the credential public key equals the Subject Public Key of credCert. + // TODO: Probably move this part to webauthncose.go + pubKey, err := webauthncose.ParsePublicKey(att.AuthData.AttData.CredentialPublicKey) + if err != nil { + return appleAttestationKey, nil, ErrInvalidAttestation.WithDetails(fmt.Sprintf("Error parsing public key: %+v\n", err)) + } + credPK := pubKey.(webauthncose.EC2PublicKeyData) + subjectPK := credCert.PublicKey.(*ecdsa.PublicKey) + credPKInfo := &ecdsa.PublicKey{ + Curve: elliptic.P256(), + X: big.NewInt(0).SetBytes(credPK.XCoord), + Y: big.NewInt(0).SetBytes(credPK.YCoord), + } + if !credPKInfo.Equal(subjectPK) { + return appleAttestationKey, nil, ErrInvalidAttestation.WithDetails("Certificate public key does not match public key in authData") + } + + // Step 6. If successful, return implementation-specific values representing attestation type Anonymization CA and attestation trust path x5c. + return appleAttestationKey, x5c, nil +} + +// Apple has not yet publish schema for the extension(as of JULY 2021.) +type AppleAnonymousAttestation struct { + Nonce []byte `asn1:"tag:1,explicit"` +} diff --git a/vendor/github.com/duo-labs/webauthn/protocol/attestation_packed.go b/vendor/github.com/duo-labs/webauthn/protocol/attestation_packed.go new file mode 100644 index 0000000000000..94bc7d22e1e9c --- /dev/null +++ b/vendor/github.com/duo-labs/webauthn/protocol/attestation_packed.go @@ -0,0 +1,278 @@ +package protocol + +import ( + "bytes" + "crypto/x509" + "encoding/asn1" + "fmt" + "strings" + "time" + + "github.com/duo-labs/webauthn/metadata" + uuid "github.com/satori/go.uuid" + + "github.com/duo-labs/webauthn/protocol/webauthncose" +) + +var packedAttestationKey = "packed" + +func init() { + RegisterAttestationFormat(packedAttestationKey, verifyPackedFormat) +} + +// From §8.2. https://www.w3.org/TR/webauthn/#packed-attestation +// The packed attestation statement looks like: +// packedStmtFormat = { +// alg: COSEAlgorithmIdentifier, +// sig: bytes, +// x5c: [ attestnCert: bytes, * (caCert: bytes) ] +// } OR +// { +// alg: COSEAlgorithmIdentifier, (-260 for ED256 / -261 for ED512) +// sig: bytes, +// ecdaaKeyId: bytes +// } OR +// { +// alg: COSEAlgorithmIdentifier +// sig: bytes, +// } +func verifyPackedFormat(att AttestationObject, clientDataHash []byte) (string, []interface{}, error) { + // Step 1. Verify that attStmt is valid CBOR conforming to the syntax defined + // above and perform CBOR decoding on it to extract the contained fields. + + // Get the alg value - A COSEAlgorithmIdentifier containing the identifier of the algorithm + // used to generate the attestation signature. + + alg, present := att.AttStatement["alg"].(int64) + if !present { + return packedAttestationKey, nil, ErrAttestationFormat.WithDetails("Error retreiving alg value") + } + + // Get the sig value - A byte string containing the attestation signature. + sig, present := att.AttStatement["sig"].([]byte) + if !present { + return packedAttestationKey, nil, ErrAttestationFormat.WithDetails("Error retreiving sig value") + } + + // Step 2. If x5c is present, this indicates that the attestation type is not ECDAA. + x5c, x509present := att.AttStatement["x5c"].([]interface{}) + if x509present { + // Handle Basic Attestation steps for the x509 Certificate + return handleBasicAttestation(sig, clientDataHash, att.RawAuthData, att.AuthData.AttData.AAGUID, alg, x5c) + } + + // Step 3. If ecdaaKeyId is present, then the attestation type is ECDAA. + // Also make sure the we did not have an x509 then + ecdaaKeyID, ecdaaKeyPresent := att.AttStatement["ecdaaKeyId"].([]byte) + if ecdaaKeyPresent { + // Handle ECDAA Attestation steps for the x509 Certificate + return handleECDAAAttesation(sig, clientDataHash, ecdaaKeyID) + } + + // Step 4. If neither x5c nor ecdaaKeyId is present, self attestation is in use. + return handleSelfAttestation(alg, att.AuthData.AttData.CredentialPublicKey, att.RawAuthData, clientDataHash, sig) +} + +// Handle the attestation steps laid out in +func handleBasicAttestation(signature, clientDataHash, authData, aaguid []byte, alg int64, x5c []interface{}) (string, []interface{}, error) { + // Step 2.1. Verify that sig is a valid signature over the concatenation of authenticatorData + // and clientDataHash using the attestation public key in attestnCert with the algorithm specified in alg. + attestationType := "Packed (Basic)" + + for _, c := range x5c { + cb, cv := c.([]byte) + if !cv { + return attestationType, x5c, ErrAttestation.WithDetails("Error getting certificate from x5c cert chain") + } + ct, err := x509.ParseCertificate(cb) + if err != nil { + return attestationType, x5c, ErrAttestationFormat.WithDetails(fmt.Sprintf("Error parsing certificate from ASN.1 data: %+v", err)) + } + if ct.NotBefore.After(time.Now()) || ct.NotAfter.Before(time.Now()) { + return attestationType, x5c, ErrAttestationFormat.WithDetails("Cert in chain not time valid") + } + } + + attCertBytes, valid := x5c[0].([]byte) + if !valid { + return attestationType, x5c, ErrAttestation.WithDetails("Error getting certificate from x5c cert chain") + } + + signatureData := append(authData, clientDataHash...) + + attCert, err := x509.ParseCertificate(attCertBytes) + if err != nil { + return attestationType, x5c, ErrAttestationFormat.WithDetails(fmt.Sprintf("Error parsing certificate from ASN.1 data: %+v", err)) + } + + coseAlg := webauthncose.COSEAlgorithmIdentifier(alg) + sigAlg := webauthncose.SigAlgFromCOSEAlg(coseAlg) + err = attCert.CheckSignature(x509.SignatureAlgorithm(sigAlg), signatureData, signature) + if err != nil { + return attestationType, x5c, ErrInvalidAttestation.WithDetails(fmt.Sprintf("Signature validation error: %+v\n", err)) + } + + // Step 2.2 Verify that attestnCert meets the requirements in §8.2.1 Packed attestation statement certificate requirements. + // §8.2.1 can be found here https://www.w3.org/TR/webauthn/#packed-attestation-cert-requirements + + // Step 2.2.1 (from §8.2.1) Version MUST be set to 3 (which is indicated by an ASN.1 INTEGER with value 2). + if attCert.Version != 3 { + return attestationType, x5c, ErrAttestationCertificate.WithDetails("Attestation Certificate is incorrect version") + } + + // Step 2.2.2 (from §8.2.1) Subject field MUST be set to: + + // Subject-C + // ISO 3166 code specifying the country where the Authenticator vendor is incorporated (PrintableString) + + // TODO: Find a good, useable, country code library. For now, check stringy-ness + subjectString := strings.Join(attCert.Subject.Country, "") + if subjectString == "" { + return attestationType, x5c, ErrAttestationCertificate.WithDetails("Attestation Certificate Country Code is invalid") + } + + // Subject-O + // Legal name of the Authenticator vendor (UTF8String) + subjectString = strings.Join(attCert.Subject.Organization, "") + if subjectString == "" { + return attestationType, x5c, ErrAttestationCertificate.WithDetails("Attestation Certificate Organization is invalid") + } + + // Subject-OU + // Literal string “Authenticator Attestation” (UTF8String) + subjectString = strings.Join(attCert.Subject.OrganizationalUnit, " ") + if subjectString != "Authenticator Attestation" { + // TODO: Implement a return error when I'm more certain this is general practice + } + + // Subject-CN + // A UTF8String of the vendor’s choosing + subjectString = attCert.Subject.CommonName + if subjectString == "" { + return attestationType, x5c, ErrAttestationCertificate.WithDetails("Attestation Certificate Common Name not set") + } + // TODO: And then what + + // Step 2.2.3 (from §8.2.1) If the related attestation root certificate is used for multiple authenticator models, + // the Extension OID 1.3.6.1.4.1.45724.1.1.4 (id-fido-gen-ce-aaguid) MUST be present, containing the + // AAGUID as a 16-byte OCTET STRING. The extension MUST NOT be marked as critical. + + idFido := asn1.ObjectIdentifier{1, 3, 6, 1, 4, 1, 45724, 1, 1, 4} + var foundAAGUID []byte + for _, extension := range attCert.Extensions { + if extension.Id.Equal(idFido) { + if extension.Critical { + return attestationType, x5c, ErrInvalidAttestation.WithDetails("Attestation certificate FIDO extension marked as critical") + } + foundAAGUID = extension.Value + } + } + + // We validate the AAGUID as mentioned above + // This is not well defined in§8.2.1 but mentioned in step 2.3: we validate the AAGUID if it is present within the certificate + // and make sure it matches the auth data AAGUID + // Note that an X.509 Extension encodes the DER-encoding of the value in an OCTET STRING. Thus, the + // AAGUID MUST be wrapped in two OCTET STRINGS to be valid. + if len(foundAAGUID) > 0 { + unMarshalledAAGUID := []byte{} + asn1.Unmarshal(foundAAGUID, &unMarshalledAAGUID) + if !bytes.Equal(aaguid, unMarshalledAAGUID) { + return attestationType, x5c, ErrInvalidAttestation.WithDetails("Certificate AAGUID does not match Auth Data certificate") + } + } + uuid, err := uuid.FromBytes(aaguid) + + if meta, ok := metadata.Metadata[uuid]; ok { + for _, s := range meta.StatusReports { + if metadata.IsUndesiredAuthenticatorStatus(metadata.AuthenticatorStatus(s.Status)) { + return attestationType, x5c, ErrInvalidAttestation.WithDetails("Authenticator with undesirable status encountered") + } + } + + if attCert.Subject.CommonName != attCert.Issuer.CommonName { + var hasBasicFull = false + for _, a := range meta.MetadataStatement.AttestationTypes { + if metadata.AuthenticatorAttestationType(a) == metadata.AuthenticatorAttestationType(metadata.BasicFull) { + hasBasicFull = true + } + } + if !hasBasicFull { + return attestationType, x5c, ErrInvalidAttestation.WithDetails("Attestation with full attestation from authentictor that does not support full attestation") + } + } + } else { + if metadata.Conformance { + return attestationType, x5c, ErrInvalidAttestation.WithDetails("AAGUID not found in metadata during conformance testing") + } + } + + // Step 2.2.4 The Basic Constraints extension MUST have the CA component set to false. + if attCert.IsCA { + return attestationType, x5c, ErrInvalidAttestation.WithDetails("Attestation certificate's Basic Constraints marked as CA") + } + + // Note for 2.2.5 An Authority Information Access (AIA) extension with entry id-ad-ocsp and a CRL + // Distribution Point extension [RFC5280](https://www.w3.org/TR/webauthn/#biblio-rfc5280) are + // both OPTIONAL as the status of many attestation certificates is available through authenticator + // metadata services. See, for example, the FIDO Metadata Service + // [FIDOMetadataService] (https://www.w3.org/TR/webauthn/#biblio-fidometadataservice) + + // Step 2.4 If successful, return attestation type Basic and attestation trust path x5c. + // We don't handle trust paths yet but we're done + return attestationType, x5c, nil +} + +func handleECDAAAttesation(signature, clientDataHash, ecdaaKeyID []byte) (string, []interface{}, error) { + return "Packed (ECDAA)", nil, ErrNotSpecImplemented +} + +func handleSelfAttestation(alg int64, pubKey, authData, clientDataHash, signature []byte) (string, []interface{}, error) { + attestationType := "Packed (Self)" + // §4.1 Validate that alg matches the algorithm of the credentialPublicKey in authenticatorData. + + // §4.2 Verify that sig is a valid signature over the concatenation of authenticatorData and + // clientDataHash using the credential public key with alg. + verificationData := append(authData, clientDataHash...) + + key, err := webauthncose.ParsePublicKey(pubKey) + if err != nil { + return attestationType, nil, ErrAttestationFormat.WithDetails(fmt.Sprintf("Error parsing the public key: %+v\n", err)) + } + + switch key.(type) { + case webauthncose.OKPPublicKeyData: + k := key.(webauthncose.OKPPublicKeyData) + err := verifyKeyAlgorithm(k.Algorithm, alg) + if err != nil { + return attestationType, nil, err + } + case webauthncose.EC2PublicKeyData: + k := key.(webauthncose.EC2PublicKeyData) + err := verifyKeyAlgorithm(k.Algorithm, alg) + if err != nil { + return attestationType, nil, err + } + case webauthncose.RSAPublicKeyData: + k := key.(webauthncose.RSAPublicKeyData) + err := verifyKeyAlgorithm(k.Algorithm, alg) + if err != nil { + return attestationType, nil, err + } + default: + return attestationType, nil, ErrInvalidAttestation.WithDetails("Error verifying the public key data") + } + + valid, err := webauthncose.VerifySignature(key, verificationData, signature) + if !valid && err == nil { + return attestationType, nil, ErrInvalidAttestation.WithDetails("Unabled to verify signature") + } + + return attestationType, nil, err +} + +func verifyKeyAlgorithm(keyAlgorithm, attestedAlgorithm int64) error { + if keyAlgorithm != attestedAlgorithm { + return ErrInvalidAttestation.WithDetails("Public key algorithm does not equal att statement algorithm") + } + return nil +} diff --git a/vendor/github.com/duo-labs/webauthn/protocol/attestation_safetynet.go b/vendor/github.com/duo-labs/webauthn/protocol/attestation_safetynet.go new file mode 100644 index 0000000000000..65424c4dbf1ac --- /dev/null +++ b/vendor/github.com/duo-labs/webauthn/protocol/attestation_safetynet.go @@ -0,0 +1,143 @@ +package protocol + +import ( + "bytes" + "crypto/sha256" + "crypto/x509" + "encoding/base64" + "fmt" + "time" + + "github.com/duo-labs/webauthn/metadata" + + jwt "github.com/golang-jwt/jwt/v4" + "github.com/mitchellh/mapstructure" +) + +var safetyNetAttestationKey = "android-safetynet" + +func init() { + RegisterAttestationFormat(safetyNetAttestationKey, verifySafetyNetFormat) +} + +type SafetyNetResponse struct { + Nonce string `json:"nonce"` + TimestampMs int64 `json:"timestampMs"` + ApkPackageName string `json:"apkPackageName"` + ApkDigestSha256 string `json:"apkDigestSha256"` + CtsProfileMatch bool `json:"ctsProfileMatch"` + ApkCertificateDigestSha256 []interface{} `json:"apkCertificateDigestSha256"` + BasicIntegrity bool `json:"basicIntegrity"` +} + +// Thanks to @koesie10 and @herrjemand for outlining how to support this type really well + +// §8.5. Android SafetyNet Attestation Statement Format https://w3c.github.io/webauthn/#android-safetynet-attestation +// When the authenticator in question is a platform-provided Authenticator on certain Android platforms, the attestation +// statement is based on the SafetyNet API. In this case the authenticator data is completely controlled by the caller of +// the SafetyNet API (typically an application running on the Android platform) and the attestation statement only provides +// some statements about the health of the platform and the identity of the calling application. This attestation does not +// provide information regarding provenance of the authenticator and its associated data. Therefore platform-provided +// authenticators SHOULD make use of the Android Key Attestation when available, even if the SafetyNet API is also present. +func verifySafetyNetFormat(att AttestationObject, clientDataHash []byte) (string, []interface{}, error) { + // The syntax of an Android Attestation statement is defined as follows: + // $$attStmtType //= ( + // fmt: "android-safetynet", + // attStmt: safetynetStmtFormat + // ) + + // safetynetStmtFormat = { + // ver: text, + // response: bytes + // } + + // §8.5.1 Verify that attStmt is valid CBOR conforming to the syntax defined above and perform CBOR decoding on it to extract + // the contained fields. + + // We have done this + // §8.5.2 Verify that response is a valid SafetyNet response of version ver. + version, present := att.AttStatement["ver"].(string) + if !present { + return safetyNetAttestationKey, nil, ErrAttestationFormat.WithDetails("Unable to find the version of SafetyNet") + } + + if version == "" { + return safetyNetAttestationKey, nil, ErrAttestationFormat.WithDetails("Not a proper version for SafetyNet") + } + + // TODO: provide user the ability to designate their supported versions + + response, present := att.AttStatement["response"].([]byte) + if !present { + return safetyNetAttestationKey, nil, ErrAttestationFormat.WithDetails("Unable to find the SafetyNet response") + } + + token, err := jwt.Parse(string(response), func(token *jwt.Token) (interface{}, error) { + chain := token.Header["x5c"].([]interface{}) + o := make([]byte, base64.StdEncoding.DecodedLen(len(chain[0].(string)))) + n, err := base64.StdEncoding.Decode(o, []byte(chain[0].(string))) + cert, err := x509.ParseCertificate(o[:n]) + return cert.PublicKey, err + }) + if err != nil { + return safetyNetAttestationKey, nil, ErrInvalidAttestation.WithDetails(fmt.Sprintf("Error finding cert issued to correct hostname: %+v", err)) + } + + // marshall the JWT payload into the safetynet response json + var safetyNetResponse SafetyNetResponse + err = mapstructure.Decode(token.Claims, &safetyNetResponse) + if err != nil { + return safetyNetAttestationKey, nil, ErrAttestationFormat.WithDetails(fmt.Sprintf("Error parsing the SafetyNet response: %+v", err)) + } + + // §8.5.3 Verify that the nonce in the response is identical to the Base64 encoding of the SHA-256 hash of the concatenation + // of authenticatorData and clientDataHash. + nonceBuffer := sha256.Sum256(append(att.RawAuthData, clientDataHash...)) + nonceBytes, err := base64.StdEncoding.DecodeString(safetyNetResponse.Nonce) + if !bytes.Equal(nonceBuffer[:], nonceBytes) || err != nil { + return safetyNetAttestationKey, nil, ErrInvalidAttestation.WithDetails("Invalid nonce for in SafetyNet response") + } + + // §8.5.4 Let attestationCert be the attestation certificate (https://www.w3.org/TR/webauthn/#attestation-certificate) + certChain := token.Header["x5c"].([]interface{}) + l := make([]byte, base64.StdEncoding.DecodedLen(len(certChain[0].(string)))) + n, err := base64.StdEncoding.Decode(l, []byte(certChain[0].(string))) + if err != nil { + return safetyNetAttestationKey, nil, ErrInvalidAttestation.WithDetails(fmt.Sprintf("Error finding cert issued to correct hostname: %+v", err)) + } + attestationCert, err := x509.ParseCertificate(l[:n]) + if err != nil { + return safetyNetAttestationKey, nil, ErrInvalidAttestation.WithDetails(fmt.Sprintf("Error finding cert issued to correct hostname: %+v", err)) + } + + // §8.5.5 Verify that attestationCert is issued to the hostname "attest.android.com" + err = attestationCert.VerifyHostname("attest.android.com") + if err != nil { + return safetyNetAttestationKey, nil, ErrInvalidAttestation.WithDetails(fmt.Sprintf("Error finding cert issued to correct hostname: %+v", err)) + } + + // §8.5.6 Verify that the ctsProfileMatch attribute in the payload of response is true. + if !safetyNetResponse.CtsProfileMatch { + return safetyNetAttestationKey, nil, ErrInvalidAttestation.WithDetails("ctsProfileMatch attribute of the JWT payload is false") + } + + // Verify sanity of timestamp in the payload + now := time.Now() + oneMinuteAgo := now.Add(-time.Minute) + t := time.Unix(safetyNetResponse.TimestampMs/1000, 0) + if t.After(now) { + // zero tolerance for post-dated timestamps + return "Basic attestation with SafetyNet", nil, ErrInvalidAttestation.WithDetails("SafetyNet response with timestamp after current time") + } else if t.Before(oneMinuteAgo) { + // allow old timestamp for testing purposes + // TODO: Make this user configurable + msg := "SafetyNet response with timestamp before one minute ago" + if metadata.Conformance { + return "Basic attestation with SafetyNet", nil, ErrInvalidAttestation.WithDetails(msg) + } + } + + // §8.5.7 If successful, return implementation-specific values representing attestation type Basic and attestation + // trust path attestationCert. + return "Basic attestation with SafetyNet", nil, nil +} diff --git a/vendor/github.com/duo-labs/webauthn/protocol/attestation_tpm.go b/vendor/github.com/duo-labs/webauthn/protocol/attestation_tpm.go new file mode 100644 index 0000000000000..7cf578b3a3aac --- /dev/null +++ b/vendor/github.com/duo-labs/webauthn/protocol/attestation_tpm.go @@ -0,0 +1,349 @@ +package protocol + +import ( + "bytes" + "crypto/x509" + "crypto/x509/pkix" + "encoding/asn1" + "errors" + "fmt" + "math/big" + "strings" + + "github.com/duo-labs/webauthn/protocol/webauthncose" + + "github.com/duo-labs/webauthn/protocol/googletpm" +) + +var tpmAttestationKey = "tpm" + +func init() { + RegisterAttestationFormat(tpmAttestationKey, verifyTPMFormat) + googletpm.UseTPM20LengthPrefixSize() +} + +func verifyTPMFormat(att AttestationObject, clientDataHash []byte) (string, []interface{}, error) { + // Given the verification procedure inputs attStmt, authenticatorData + // and clientDataHash, the verification procedure is as follows + + // Verify that attStmt is valid CBOR conforming to the syntax defined + // above and perform CBOR decoding on it to extract the contained fields + + ver, present := att.AttStatement["ver"].(string) + if !present { + return tpmAttestationKey, nil, ErrAttestationFormat.WithDetails("Error retreiving ver value") + } + + if ver != "2.0" { + return tpmAttestationKey, nil, ErrAttestationFormat.WithDetails("WebAuthn only supports TPM 2.0 currently") + } + + alg, present := att.AttStatement["alg"].(int64) + if !present { + return tpmAttestationKey, nil, ErrAttestationFormat.WithDetails("Error retreiving alg value") + } + + coseAlg := webauthncose.COSEAlgorithmIdentifier(alg) + + x5c, x509present := att.AttStatement["x5c"].([]interface{}) + if !x509present { + // Handle Basic Attestation steps for the x509 Certificate + return tpmAttestationKey, nil, ErrNotImplemented + } + + _, ecdaaKeyPresent := att.AttStatement["ecdaaKeyId"].([]byte) + if ecdaaKeyPresent { + return tpmAttestationKey, nil, ErrNotImplemented + } + + sigBytes, present := att.AttStatement["sig"].([]byte) + if !present { + return tpmAttestationKey, nil, ErrAttestationFormat.WithDetails("Error retreiving sig value") + } + + certInfoBytes, present := att.AttStatement["certInfo"].([]byte) + if !present { + return tpmAttestationKey, nil, ErrAttestationFormat.WithDetails("Error retreiving certInfo value") + } + + pubAreaBytes, present := att.AttStatement["pubArea"].([]byte) + if !present { + return tpmAttestationKey, nil, ErrAttestationFormat.WithDetails("Error retreiving pubArea value") + } + + // Verify that the public key specified by the parameters and unique fields of pubArea + // is identical to the credentialPublicKey in the attestedCredentialData in authenticatorData. + pubArea, err := googletpm.DecodePublic(pubAreaBytes) + if err != nil { + return tpmAttestationKey, nil, ErrAttestationFormat.WithDetails("Unable to decode TPMT_PUBLIC in attestation statement") + } + + key, err := webauthncose.ParsePublicKey(att.AuthData.AttData.CredentialPublicKey) + switch key.(type) { + case webauthncose.EC2PublicKeyData: + e := key.(webauthncose.EC2PublicKeyData) + if pubArea.ECCParameters.CurveID != googletpm.EllipticCurve(e.Curve) || + 0 != pubArea.ECCParameters.Point.X.Cmp(new(big.Int).SetBytes(e.XCoord)) || + 0 != pubArea.ECCParameters.Point.Y.Cmp(new(big.Int).SetBytes(e.YCoord)) { + return tpmAttestationKey, nil, ErrAttestationFormat.WithDetails("Mismatch between ECCParameters in pubArea and credentialPublicKey") + } + case webauthncose.RSAPublicKeyData: + r := key.(webauthncose.RSAPublicKeyData) + mod := new(big.Int).SetBytes(r.Modulus) + exp := uint32(r.Exponent[0]) + uint32(r.Exponent[1])<<8 + uint32(r.Exponent[2])<<16 + if 0 != pubArea.RSAParameters.Modulus.Cmp(mod) || + pubArea.RSAParameters.Exponent != exp { + return tpmAttestationKey, nil, ErrAttestationFormat.WithDetails("Mismatch between RSAParameters in pubArea and credentialPublicKey") + } + default: + return "", nil, ErrUnsupportedKey + } + + // Concatenate authenticatorData and clientDataHash to form attToBeSigned + attToBeSigned := append(att.RawAuthData, clientDataHash...) + + // Validate that certInfo is valid: + certInfo, err := googletpm.DecodeAttestationData(certInfoBytes) + // 1/4 Verify that magic is set to TPM_GENERATED_VALUE. + if certInfo.Magic != 0xff544347 { + return tpmAttestationKey, nil, ErrAttestationFormat.WithDetails("Magic is not set to TPM_GENERATED_VALUE") + } + // 2/4 Verify that type is set to TPM_ST_ATTEST_CERTIFY. + if certInfo.Type != googletpm.TagAttestCertify { + return tpmAttestationKey, nil, ErrAttestationFormat.WithDetails("Type is not set to TPM_ST_ATTEST_CERTIFY") + } + // 3/4 Verify that extraData is set to the hash of attToBeSigned using the hash algorithm employed in "alg". + f := webauthncose.HasherFromCOSEAlg(coseAlg) + h := f() + h.Write(attToBeSigned) + if 0 != bytes.Compare(certInfo.ExtraData, h.Sum(nil)) { + return tpmAttestationKey, nil, ErrAttestationFormat.WithDetails("ExtraData is not set to hash of attToBeSigned") + } + // 4/4 Verify that attested contains a TPMS_CERTIFY_INFO structure as specified in + // [TPMv2-Part2] section 10.12.3, whose name field contains a valid Name for pubArea, + // as computed using the algorithm in the nameAlg field of pubArea + // using the procedure specified in [TPMv2-Part1] section 16. + f, err = certInfo.AttestedCertifyInfo.Name.Digest.Alg.HashConstructor() + h = f() + h.Write(pubAreaBytes) + if 0 != bytes.Compare(h.Sum(nil), certInfo.AttestedCertifyInfo.Name.Digest.Value) { + return tpmAttestationKey, nil, ErrAttestationFormat.WithDetails("Hash value mismatch attested and pubArea") + } + + // Note that the remaining fields in the "Standard Attestation Structure" + // [TPMv2-Part1] section 31.2, i.e., qualifiedSigner, clockInfo and firmwareVersion + // are ignored. These fields MAY be used as an input to risk engines. + + // If x5c is present, this indicates that the attestation type is not ECDAA. + if x509present { + // In this case: + // Verify the sig is a valid signature over certInfo using the attestation public key in aikCert with the algorithm specified in alg. + aikCertBytes, valid := x5c[0].([]byte) + if !valid { + return tpmAttestationKey, nil, ErrAttestation.WithDetails("Error getting certificate from x5c cert chain") + } + + aikCert, err := x509.ParseCertificate(aikCertBytes) + if err != nil { + return tpmAttestationKey, nil, ErrAttestationFormat.WithDetails("Error parsing certificate from ASN.1") + } + + sigAlg := webauthncose.SigAlgFromCOSEAlg(coseAlg) + + err = aikCert.CheckSignature(x509.SignatureAlgorithm(sigAlg), certInfoBytes, sigBytes) + if err != nil { + return tpmAttestationKey, nil, ErrAttestationFormat.WithDetails(fmt.Sprintf("Signature validation error: %+v\n", err)) + } + // Verify that aikCert meets the requirements in §8.3.1 TPM Attestation Statement Certificate Requirements + + // 1/6 Version MUST be set to 3. + if aikCert.Version != 3 { + return tpmAttestationKey, nil, ErrAttestationFormat.WithDetails("AIK certificate version must be 3") + } + // 2/6 Subject field MUST be set to empty. + if aikCert.Subject.String() != "" { + return tpmAttestationKey, nil, ErrAttestationFormat.WithDetails("AIK certificate subject must be empty") + } + + // 3/6 The Subject Alternative Name extension MUST be set as defined in [TPMv2-EK-Profile] section 3.2.9{} + var manufacturer, model, version string + for _, ext := range aikCert.Extensions { + if ext.Id.Equal([]int{2, 5, 29, 17}) { + manufacturer, model, version, err = parseSANExtension(ext.Value) + } + } + + if manufacturer == "" || model == "" || version == "" { + return tpmAttestationKey, nil, ErrAttestationFormat.WithDetails("Invalid SAN data in AIK certificate") + } + + if false == isValidTPMManufacturer(manufacturer) { + return tpmAttestationKey, nil, ErrAttestationFormat.WithDetails("Invalid TPM manufacturer") + } + + // 4/6 The Extended Key Usage extension MUST contain the "joint-iso-itu-t(2) internationalorganizations(23) 133 tcg-kp(8) tcg-kp-AIKCertificate(3)" OID. + var ekuValid = false + var eku []asn1.ObjectIdentifier + for _, ext := range aikCert.Extensions { + if ext.Id.Equal([]int{2, 5, 29, 37}) { + rest, err := asn1.Unmarshal(ext.Value, &eku) + if len(rest) != 0 || err != nil || !eku[0].Equal(tcgKpAIKCertificate) { + return tpmAttestationKey, nil, ErrAttestationFormat.WithDetails("AIK certificate EKU missing 2.23.133.8.3") + } + ekuValid = true + } + } + if false == ekuValid { + return tpmAttestationKey, nil, ErrAttestationFormat.WithDetails("AIK certificate missing EKU") + } + + // 5/6 The Basic Constraints extension MUST have the CA component set to false. + type basicConstraints struct { + IsCA bool `asn1:"optional"` + MaxPathLen int `asn1:"optional,default:-1"` + } + var constraints basicConstraints + for _, ext := range aikCert.Extensions { + if ext.Id.Equal([]int{2, 5, 29, 19}) { + if rest, err := asn1.Unmarshal(ext.Value, &constraints); err != nil { + return tpmAttestationKey, nil, ErrAttestationFormat.WithDetails("AIK certificate basic constraints malformed") + } else if len(rest) != 0 { + return tpmAttestationKey, nil, ErrAttestationFormat.WithDetails("AIK certificate basic constraints contains extra data") + } + } + } + if constraints.IsCA != false { + return tpmAttestationKey, nil, ErrAttestationFormat.WithDetails("AIK certificate basic constraints missing or CA is true") + } + // 6/6 An Authority Information Access (AIA) extension with entry id-ad-ocsp and a CRL Distribution Point + // extension [RFC5280] are both OPTIONAL as the status of many attestation certificates is available + // through metadata services. See, for example, the FIDO Metadata Service. + } + + return tpmAttestationKey, x5c, err +} +func forEachSAN(extension []byte, callback func(tag int, data []byte) error) error { + // RFC 5280, 4.2.1.6 + + // SubjectAltName ::= GeneralNames + // + // GeneralNames ::= SEQUENCE SIZE (1..MAX) OF GeneralName + // + // GeneralName ::= CHOICE { + // otherName [0] OtherName, + // rfc822Name [1] IA5String, + // dNSName [2] IA5String, + // x400Address [3] ORAddress, + // directoryName [4] Name, + // ediPartyName [5] EDIPartyName, + // uniformResourceIdentifier [6] IA5String, + // iPAddress [7] OCTET STRING, + // registeredID [8] OBJECT IDENTIFIER } + var seq asn1.RawValue + rest, err := asn1.Unmarshal(extension, &seq) + if err != nil { + return err + } else if len(rest) != 0 { + return errors.New("x509: trailing data after X.509 extension") + } + if !seq.IsCompound || seq.Tag != 16 || seq.Class != 0 { + return asn1.StructuralError{Msg: "bad SAN sequence"} + } + + rest = seq.Bytes + for len(rest) > 0 { + var v asn1.RawValue + rest, err = asn1.Unmarshal(rest, &v) + if err != nil { + return err + } + + if err := callback(v.Tag, v.Bytes); err != nil { + return err + } + } + + return nil +} + +const ( + nameTypeDN = 4 +) + +var ( + tcgKpAIKCertificate = asn1.ObjectIdentifier{2, 23, 133, 8, 3} + tcgAtTpmManufacturer = asn1.ObjectIdentifier{2, 23, 133, 2, 1} + tcgAtTpmModel = asn1.ObjectIdentifier{2, 23, 133, 2, 2} + tcgAtTpmVersion = asn1.ObjectIdentifier{2, 23, 133, 2, 3} +) + +func parseSANExtension(value []byte) (manufacturer string, model string, version string, err error) { + err = forEachSAN(value, func(tag int, data []byte) error { + switch tag { + case nameTypeDN: + tpmDeviceAttributes := pkix.RDNSequence{} + _, err := asn1.Unmarshal(data, &tpmDeviceAttributes) + if err != nil { + return err + } + for _, rdn := range tpmDeviceAttributes { + if len(rdn) == 0 { + continue + } + for _, atv := range rdn { + value, ok := atv.Value.(string) + if !ok { + continue + } + + if atv.Type.Equal(tcgAtTpmManufacturer) { + manufacturer = strings.TrimPrefix(value, "id:") + } + if atv.Type.Equal(tcgAtTpmModel) { + model = value + } + if atv.Type.Equal(tcgAtTpmVersion) { + version = strings.TrimPrefix(value, "id:") + } + } + } + } + return nil + }) + return +} + +var tpmManufacturers = []struct { + id string + name string + code string +}{ + {"414D4400", "AMD", "AMD"}, + {"41544D4C", "Atmel", "ATML"}, + {"4252434D", "Broadcom", "BRCM"}, + {"49424d00", "IBM", "IBM"}, + {"49465800", "Infineon", "IFX"}, + {"494E5443", "Intel", "INTC"}, + {"4C454E00", "Lenovo", "LEN"}, + {"4E534D20", "National Semiconductor", "NSM"}, + {"4E545A00", "Nationz", "NTZ"}, + {"4E544300", "Nuvoton Technology", "NTC"}, + {"51434F4D", "Qualcomm", "QCOM"}, + {"534D5343", "SMSC", "SMSC"}, + {"53544D20", "ST Microelectronics", "STM"}, + {"534D534E", "Samsung", "SMSN"}, + {"534E5300", "Sinosun", "SNS"}, + {"54584E00", "Texas Instruments", "TXN"}, + {"57454300", "Winbond", "WEC"}, + {"524F4343", "Fuzhouk Rockchip", "ROCC"}, + {"FFFFF1D0", "FIDO Alliance Conformance Testing", "FIDO"}, +} + +func isValidTPMManufacturer(id string) bool { + for _, m := range tpmManufacturers { + if m.id == id { + return true + } + } + return false +} diff --git a/vendor/github.com/duo-labs/webauthn/protocol/attestation_u2f.go b/vendor/github.com/duo-labs/webauthn/protocol/attestation_u2f.go new file mode 100644 index 0000000000000..24d8e2a6b0df4 --- /dev/null +++ b/vendor/github.com/duo-labs/webauthn/protocol/attestation_u2f.go @@ -0,0 +1,135 @@ +package protocol + +import ( + "bytes" + "crypto/ecdsa" + "crypto/elliptic" + "crypto/x509" + + "github.com/duo-labs/webauthn/protocol/webauthncose" + "github.com/fxamacker/cbor/v2" +) + +var u2fAttestationKey = "fido-u2f" + +func init() { + RegisterAttestationFormat(u2fAttestationKey, verifyU2FFormat) +} + +// verifyU2FFormat - Follows verification steps set out by https://www.w3.org/TR/webauthn/#fido-u2f-attestation +func verifyU2FFormat(att AttestationObject, clientDataHash []byte) (string, []interface{}, error) { + + if !bytes.Equal(att.AuthData.AttData.AAGUID, []byte{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}) { + return u2fAttestationKey, nil, ErrUnsupportedAlgorithm.WithDetails("U2F attestation format AAGUID not set to 0x00") + } + // Signing procedure step - If the credential public key of the given credential is not of + // algorithm -7 ("ES256"), stop and return an error. + key := webauthncose.EC2PublicKeyData{} + cbor.Unmarshal(att.AuthData.AttData.CredentialPublicKey, &key) + + if webauthncose.COSEAlgorithmIdentifier(key.PublicKeyData.Algorithm) != webauthncose.AlgES256 { + return u2fAttestationKey, nil, ErrUnsupportedAlgorithm.WithDetails("Non-ES256 Public Key algorithm used") + } + + // U2F Step 1. Verify that attStmt is valid CBOR conforming to the syntax defined above + // and perform CBOR decoding on it to extract the contained fields. + + // The Format/syntax is + // u2fStmtFormat = { + // x5c: [ attestnCert: bytes ], + // sig: bytes + // } + + // Check for "x5c" which is a single element array containing the attestation certificate in X.509 format. + x5c, present := att.AttStatement["x5c"].([]interface{}) + if !present { + return u2fAttestationKey, nil, ErrAttestationFormat.WithDetails("Missing properly formatted x5c data") + } + + // Check for "sig" which is The attestation signature. The signature was calculated over the (raw) U2F + // registration response message https://www.w3.org/TR/webauthn/#biblio-fido-u2f-message-formats] + // received by the client from the authenticator. + signature, present := att.AttStatement["sig"].([]byte) + if !present { + return u2fAttestationKey, nil, ErrAttestationFormat.WithDetails("Missing sig data") + } + + // U2F Step 2. (1) Check that x5c has exactly one element and let attCert be that element. (2) Let certificate public + // key be the public key conveyed by attCert. (3) If certificate public key is not an Elliptic Curve (EC) public + // key over the P-256 curve, terminate this algorithm and return an appropriate error. + + // Step 2.1 + if len(x5c) > 1 { + return u2fAttestationKey, nil, ErrAttestationFormat.WithDetails("Received more than one element in x5c values") + } + + // Note: Packed Attestation, FIDO U2F Attestation, and Assertion Signatures support ASN.1,but it is recommended + // that any new attestation formats defined not use ASN.1 encodings, but instead represent signatures as equivalent + // fixed-length byte arrays without internal structure, using the same representations as used by COSE signatures + // as defined in RFC8152 (https://www.w3.org/TR/webauthn/#biblio-rfc8152) + // and RFC8230 (https://www.w3.org/TR/webauthn/#biblio-rfc8230). + + // Step 2.2 + asn1Bytes, decoded := x5c[0].([]byte) + if !decoded { + return u2fAttestationKey, nil, ErrAttestationFormat.WithDetails("Error decoding ASN.1 data from x5c") + } + + attCert, err := x509.ParseCertificate(asn1Bytes) + if err != nil { + return u2fAttestationKey, nil, ErrAttestationFormat.WithDetails("Error parsing certificate from ASN.1 data into certificate") + } + + // Step 2.3 + if attCert.PublicKeyAlgorithm != x509.ECDSA && attCert.PublicKey.(*ecdsa.PublicKey).Curve != elliptic.P256() { + return u2fAttestationKey, nil, ErrAttestationFormat.WithDetails("Attestation certificate is in invalid format") + } + + // Step 3. Extract the claimed rpIdHash from authenticatorData, and the claimed credentialId and credentialPublicKey + // from authenticatorData.attestedCredentialData. + + rpIdHash := att.AuthData.RPIDHash + + credentialID := att.AuthData.AttData.CredentialID + + // credentialPublicKey handled earlier + + // Step 4. Convert the COSE_KEY formatted credentialPublicKey (see Section 7 of RFC8152 [https://www.w3.org/TR/webauthn/#biblio-rfc8152]) + // to Raw ANSI X9.62 public key format (see ALG_KEY_ECC_X962_RAW in Section 3.6.2 Public Key + // Representation Formats of FIDO-Registry [https://www.w3.org/TR/webauthn/#biblio-fido-registry]). + + // Let x be the value corresponding to the "-2" key (representing x coordinate) in credentialPublicKey, and confirm + // its size to be of 32 bytes. If size differs or "-2" key is not found, terminate this algorithm and + // return an appropriate error. + + // Let y be the value corresponding to the "-3" key (representing y coordinate) in credentialPublicKey, and confirm + // its size to be of 32 bytes. If size differs or "-3" key is not found, terminate this algorithm and + // return an appropriate error. + + if len(key.XCoord) > 32 || len(key.YCoord) > 32 { + return u2fAttestationKey, nil, ErrAttestation.WithDetails("X or Y Coordinate for key is invalid length") + } + + // Let publicKeyU2F be the concatenation 0x04 || x || y. + publicKeyU2F := bytes.NewBuffer([]byte{0x04}) + publicKeyU2F.Write(key.XCoord) + publicKeyU2F.Write(key.YCoord) + + // Step 5. Let verificationData be the concatenation of (0x00 || rpIdHash || clientDataHash || credentialId || publicKeyU2F) + // (see §4.3 of FIDO-U2F-Message-Formats [https://www.w3.org/TR/webauthn/#biblio-fido-u2f-message-formats]). + + verificationData := bytes.NewBuffer([]byte{0x00}) + verificationData.Write(rpIdHash) + verificationData.Write(clientDataHash) + verificationData.Write(credentialID) + verificationData.Write(publicKeyU2F.Bytes()) + + // Step 6. Verify the sig using verificationData and certificate public key per SEC1[https://www.w3.org/TR/webauthn/#biblio-sec1]. + sigErr := attCert.CheckSignature(x509.ECDSAWithSHA256, verificationData.Bytes(), signature) + if sigErr != nil { + return u2fAttestationKey, nil, sigErr + } + + // Step 7. If successful, return attestation type Basic with the attestation trust path set to x5c. + return "Fido U2F Basic", x5c, sigErr +} diff --git a/vendor/github.com/duo-labs/webauthn/protocol/authenticator.go b/vendor/github.com/duo-labs/webauthn/protocol/authenticator.go new file mode 100644 index 0000000000000..ceb21526d98d6 --- /dev/null +++ b/vendor/github.com/duo-labs/webauthn/protocol/authenticator.go @@ -0,0 +1,256 @@ +package protocol + +import ( + "bytes" + "encoding/binary" + "fmt" + + "github.com/fxamacker/cbor/v2" +) + +var minAuthDataLength = 37 + +// Authenticators respond to Relying Party requests by returning an object derived from the +// AuthenticatorResponse interface. See §5.2. Authenticator Responses +// https://www.w3.org/TR/webauthn/#iface-authenticatorresponse +type AuthenticatorResponse struct { + // From the spec https://www.w3.org/TR/webauthn/#dom-authenticatorresponse-clientdatajson + // This attribute contains a JSON serialization of the client data passed to the authenticator + // by the client in its call to either create() or get(). + ClientDataJSON URLEncodedBase64 `json:"clientDataJSON"` +} + +// AuthenticatorData From §6.1 of the spec. +// The authenticator data structure encodes contextual bindings made by the authenticator. These bindings +// are controlled by the authenticator itself, and derive their trust from the WebAuthn Relying Party's +// assessment of the security properties of the authenticator. In one extreme case, the authenticator +// may be embedded in the client, and its bindings may be no more trustworthy than the client data. +// At the other extreme, the authenticator may be a discrete entity with high-security hardware and +// software, connected to the client over a secure channel. In both cases, the Relying Party receives +// the authenticator data in the same format, and uses its knowledge of the authenticator to make +// trust decisions. +// +// The authenticator data, at least during attestation, contains the Public Key that the RP stores +// and will associate with the user attempting to register. +type AuthenticatorData struct { + RPIDHash []byte `json:"rpid"` + Flags AuthenticatorFlags `json:"flags"` + Counter uint32 `json:"sign_count"` + AttData AttestedCredentialData `json:"att_data"` + ExtData []byte `json:"ext_data"` +} + +type AttestedCredentialData struct { + AAGUID []byte `json:"aaguid"` + CredentialID []byte `json:"credential_id"` + // The raw credential public key bytes received from the attestation data + CredentialPublicKey []byte `json:"public_key"` +} + +// AuthenticatorAttachment https://www.w3.org/TR/webauthn/#platform-attachment +type AuthenticatorAttachment string + +const ( + // Platform - A platform authenticator is attached using a client device-specific transport, called + // platform attachment, and is usually not removable from the client device. A public key credential + // bound to a platform authenticator is called a platform credential. + Platform AuthenticatorAttachment = "platform" + // CrossPlatform A roaming authenticator is attached using cross-platform transports, called + // cross-platform attachment. Authenticators of this class are removable from, and can "roam" + // among, client devices. A public key credential bound to a roaming authenticator is called a + // roaming credential. + CrossPlatform AuthenticatorAttachment = "cross-platform" +) + +// Authenticators may implement various transports for communicating with clients. This enumeration defines +// hints as to how clients might communicate with a particular authenticator in order to obtain an assertion +// for a specific credential. Note that these hints represent the WebAuthn Relying Party's best belief as to +// how an authenticator may be reached. A Relying Party may obtain a list of transports hints from some +// attestation statement formats or via some out-of-band mechanism; it is outside the scope of this +// specification to define that mechanism. +// See §5.10.4. Authenticator Transport https://www.w3.org/TR/webauthn/#transport +type AuthenticatorTransport string + +const ( + // USB The authenticator should transport information over USB + USB AuthenticatorTransport = "usb" + // NFC The authenticator should transport information over Near Field Communication Protocol + NFC AuthenticatorTransport = "nfc" + // BLE The authenticator should transport information over Bluetooth + BLE AuthenticatorTransport = "ble" + // Internal the client should use an internal source like a TPM or SE + Internal AuthenticatorTransport = "internal" +) + +// A WebAuthn Relying Party may require user verification for some of its operations but not for others, +// and may use this type to express its needs. +// See §5.10.6. User Verification Requirement Enumeration https://www.w3.org/TR/webauthn/#userVerificationRequirement +type UserVerificationRequirement string + +const ( + // VerificationRequired User verification is required to create/release a credential + VerificationRequired UserVerificationRequirement = "required" + // VerificationPreferred User verification is preferred to create/release a credential + VerificationPreferred UserVerificationRequirement = "preferred" // This is the default + // VerificationDiscouraged The authenticator should not verify the user for the credential + VerificationDiscouraged UserVerificationRequirement = "discouraged" +) + +// AuthenticatorFlags A byte of information returned during during ceremonies in the +// authenticatorData that contains bits that give us information about the +// whether the user was present and/or verified during authentication, and whether +// there is attestation or extension data present. Bit 0 is the least significant bit. +type AuthenticatorFlags byte + +// The bits that do not have flags are reserved for future use. +const ( + // FlagUserPresent Bit 00000001 in the byte sequence. Tells us if user is present + FlagUserPresent AuthenticatorFlags = 1 << iota // Referred to as UP + _ // Reserved + // FlagUserVerified Bit 00000100 in the byte sequence. Tells us if user is verified + // by the authenticator using a biometric or PIN + FlagUserVerified // Referred to as UV + _ // Reserved + _ // Reserved + _ // Reserved + // FlagAttestedCredentialData Bit 01000000 in the byte sequence. Indicates whether + // the authenticator added attested credential data. + FlagAttestedCredentialData // Referred to as AT + // FlagHasExtension Bit 10000000 in the byte sequence. Indicates if the authenticator data has extensions. + FlagHasExtensions // Referred to as ED +) + +// UserPresent returns if the UP flag was set +func (flag AuthenticatorFlags) UserPresent() bool { + return (flag & FlagUserPresent) == FlagUserPresent +} + +// UserVerified returns if the UV flag was set +func (flag AuthenticatorFlags) UserVerified() bool { + return (flag & FlagUserVerified) == FlagUserVerified +} + +// HasAttestedCredentialData returns if the AT flag was set +func (flag AuthenticatorFlags) HasAttestedCredentialData() bool { + return (flag & FlagAttestedCredentialData) == FlagAttestedCredentialData +} + +// HasExtensions returns if the ED flag was set +func (flag AuthenticatorFlags) HasExtensions() bool { + return (flag & FlagHasExtensions) == FlagHasExtensions +} + +// Unmarshal will take the raw Authenticator Data and marshalls it into AuthenticatorData for further validation. +// The authenticator data has a compact but extensible encoding. This is desired since authenticators can be +// devices with limited capabilities and low power requirements, with much simpler software stacks than the client platform. +// The authenticator data structure is a byte array of 37 bytes or more, and is laid out in this table: +// https://www.w3.org/TR/webauthn/#table-authData +func (a *AuthenticatorData) Unmarshal(rawAuthData []byte) error { + if minAuthDataLength > len(rawAuthData) { + err := ErrBadRequest.WithDetails("Authenticator data length too short") + info := fmt.Sprintf("Expected data greater than %d bytes. Got %d bytes\n", minAuthDataLength, len(rawAuthData)) + return err.WithInfo(info) + } + + a.RPIDHash = rawAuthData[:32] + a.Flags = AuthenticatorFlags(rawAuthData[32]) + a.Counter = binary.BigEndian.Uint32(rawAuthData[33:37]) + + remaining := len(rawAuthData) - minAuthDataLength + + if a.Flags.HasAttestedCredentialData() { + if len(rawAuthData) > minAuthDataLength { + a.unmarshalAttestedData(rawAuthData) + attDataLen := len(a.AttData.AAGUID) + 2 + len(a.AttData.CredentialID) + len(a.AttData.CredentialPublicKey) + remaining = remaining - attDataLen + } else { + return ErrBadRequest.WithDetails("Attested credential flag set but data is missing") + } + } else { + if !a.Flags.HasExtensions() && len(rawAuthData) != 37 { + return ErrBadRequest.WithDetails("Attested credential flag not set") + } + } + + if a.Flags.HasExtensions() { + if remaining != 0 { + a.ExtData = rawAuthData[len(rawAuthData)-remaining:] + remaining -= len(a.ExtData) + } else { + return ErrBadRequest.WithDetails("Extensions flag set but extensions data is missing") + } + } + + if remaining != 0 { + return ErrBadRequest.WithDetails("Leftover bytes decoding AuthenticatorData") + } + + return nil +} + +// If Attestation Data is present, unmarshall that into the appropriate public key structure +func (a *AuthenticatorData) unmarshalAttestedData(rawAuthData []byte) { + a.AttData.AAGUID = rawAuthData[37:53] + idLength := binary.BigEndian.Uint16(rawAuthData[53:55]) + a.AttData.CredentialID = rawAuthData[55 : 55+idLength] + a.AttData.CredentialPublicKey = unmarshalCredentialPublicKey(rawAuthData[55+idLength:]) +} + +// Unmarshall the credential's Public Key into CBOR encoding +func unmarshalCredentialPublicKey(keyBytes []byte) []byte { + var m interface{} + cbor.Unmarshal(keyBytes, &m) + rawBytes, _ := cbor.Marshal(m) + return rawBytes +} + +// ResidentKeyRequired - Require that the key be private key resident to the client device +func ResidentKeyRequired() *bool { + required := true + return &required +} + +// ResidentKeyUnrequired - Do not require that the private key be resident to the client device. +func ResidentKeyUnrequired() *bool { + required := false + return &required +} + +// Verify on AuthenticatorData handles Steps 9 through 12 for Registration +// and Steps 11 through 14 for Assertion. +func (a *AuthenticatorData) Verify(rpIdHash, appIDHash []byte, userVerificationRequired bool) error { + + // Registration Step 9 & Assertion Step 11 + // Verify that the RP ID hash in authData is indeed the SHA-256 + // hash of the RP ID expected by the RP. + if !bytes.Equal(a.RPIDHash[:], rpIdHash) && !bytes.Equal(a.RPIDHash[:], appIDHash) { + return ErrVerification.WithInfo(fmt.Sprintf("RP Hash mismatch. Expected %s and Received %s\n", a.RPIDHash, rpIdHash)) + } + + // Registration Step 10 & Assertion Step 12 + // Verify that the User Present bit of the flags in authData is set. + if !a.Flags.UserPresent() { + return ErrVerification.WithInfo(fmt.Sprintln("User presence flag not set by authenticator")) + } + + // Registration Step 11 & Assertion Step 13 + // If user verification is required for this assertion, verify that + // the User Verified bit of the flags in authData is set. + if userVerificationRequired && !a.Flags.UserVerified() { + return ErrVerification.WithInfo(fmt.Sprintln("User verification required but flag not set by authenticator")) + } + + // Registration Step 12 & Assertion Step 14 + // Verify that the values of the client extension outputs in clientExtensionResults + // and the authenticator extension outputs in the extensions in authData are as + // expected, considering the client extension input values that were given as the + // extensions option in the create() call. In particular, any extension identifier + // values in the clientExtensionResults and the extensions in authData MUST be also be + // present as extension identifier values in the extensions member of options, i.e., no + // extensions are present that were not requested. In the general case, the meaning + // of "are as expected" is specific to the Relying Party and which extensions are in use. + + // This is not yet fully implemented by the spec or by browsers + + return nil +} diff --git a/vendor/github.com/duo-labs/webauthn/protocol/base64.go b/vendor/github.com/duo-labs/webauthn/protocol/base64.go new file mode 100644 index 0000000000000..a087438578875 --- /dev/null +++ b/vendor/github.com/duo-labs/webauthn/protocol/base64.go @@ -0,0 +1,41 @@ +package protocol + +import ( + "bytes" + "encoding/base64" + "reflect" +) + +// URLEncodedBase64 represents a byte slice holding URL-encoded base64 data. +// When fields of this type are unmarshaled from JSON, the data is base64 +// decoded into a byte slice. +type URLEncodedBase64 []byte + +// UnmarshalJSON base64 decodes a URL-encoded value, storing the result in the +// provided byte slice. +func (dest *URLEncodedBase64) UnmarshalJSON(data []byte) error { + if bytes.Equal(data, []byte("null")) { + return nil + } + + // Trim the leading spaces + data = bytes.Trim(data, "\"") + out := make([]byte, base64.RawURLEncoding.DecodedLen(len(data))) + n, err := base64.RawURLEncoding.Decode(out, data) + if err != nil { + return err + } + + v := reflect.ValueOf(dest).Elem() + v.SetBytes(out[:n]) + return nil +} + +// MarshalJSON base64 encodes a non URL-encoded value, storing the result in the +// provided byte slice. +func (data URLEncodedBase64) MarshalJSON() ([]byte, error) { + if data == nil { + return []byte("null"), nil + } + return []byte(`"` + base64.RawURLEncoding.EncodeToString(data) + `"`), nil +} diff --git a/vendor/github.com/duo-labs/webauthn/protocol/challenge.go b/vendor/github.com/duo-labs/webauthn/protocol/challenge.go new file mode 100644 index 0000000000000..be8e76a73f52a --- /dev/null +++ b/vendor/github.com/duo-labs/webauthn/protocol/challenge.go @@ -0,0 +1,27 @@ +package protocol + +import ( + "crypto/rand" + "encoding/base64" +) + +// ChallengeLength - Length of bytes to generate for a challenge +const ChallengeLength = 32 + +// Challenge that should be signed and returned by the authenticator +type Challenge URLEncodedBase64 + +// Create a new challenge to be sent to the authenticator. The spec recommends using +// at least 16 bytes with 100 bits of entropy. We use 32 bytes. +func CreateChallenge() (Challenge, error) { + challenge := make([]byte, ChallengeLength) + _, err := rand.Read(challenge) + if err != nil { + return nil, err + } + return challenge, nil +} + +func (c Challenge) String() string { + return base64.RawURLEncoding.EncodeToString(c) +} diff --git a/vendor/github.com/duo-labs/webauthn/protocol/client.go b/vendor/github.com/duo-labs/webauthn/protocol/client.go new file mode 100644 index 0000000000000..c3585732f7b7a --- /dev/null +++ b/vendor/github.com/duo-labs/webauthn/protocol/client.go @@ -0,0 +1,112 @@ +package protocol + +import ( + "fmt" + "net/url" + "strings" +) + +// CollectedClientData represents the contextual bindings of both the WebAuthn Relying Party +// and the client. It is a key-value mapping whose keys are strings. Values can be any type +// that has a valid encoding in JSON. Its structure is defined by the following Web IDL. +// https://www.w3.org/TR/webauthn/#sec-client-data +type CollectedClientData struct { + // Type the string "webauthn.create" when creating new credentials, + // and "webauthn.get" when getting an assertion from an existing credential. The + // purpose of this member is to prevent certain types of signature confusion attacks + //(where an attacker substitutes one legitimate signature for another). + Type CeremonyType `json:"type"` + Challenge string `json:"challenge"` + Origin string `json:"origin"` + TokenBinding *TokenBinding `json:"tokenBinding,omitempty"` + // Chromium (Chrome) returns a hint sometimes about how to handle clientDataJSON in a safe manner + Hint string `json:"new_keys_may_be_added_here,omitempty"` +} + +type CeremonyType string + +const ( + CreateCeremony CeremonyType = "webauthn.create" + AssertCeremony CeremonyType = "webauthn.get" +) + +type TokenBinding struct { + Status TokenBindingStatus `json:"status"` + ID string `json:"id,omitempty"` +} + +type TokenBindingStatus string + +const ( + // Indicates token binding was used when communicating with the + // Relying Party. In this case, the id member MUST be present. + Present TokenBindingStatus = "present" + // Indicates token binding was used when communicating with the + // negotiated when communicating with the Relying Party. + Supported TokenBindingStatus = "supported" + // Indicates token binding not supported + // when communicating with the Relying Party. + NotSupported TokenBindingStatus = "not-supported" +) + +// Returns the origin per the HTML spec: (scheme)://(host)[:(port)] +func FullyQualifiedOrigin(u *url.URL) string { + return fmt.Sprintf("%s://%s", u.Scheme, u.Host) +} + +// Handles steps 3 through 6 of verfying the registering client data of a +// new credential and steps 7 through 10 of verifying an authentication assertion +// See https://www.w3.org/TR/webauthn/#registering-a-new-credential +// and https://www.w3.org/TR/webauthn/#verifying-assertion +func (c *CollectedClientData) Verify(storedChallenge string, ceremony CeremonyType, relyingPartyOrigin string) error { + + // Registration Step 3. Verify that the value of C.type is webauthn.create. + + // Assertion Step 7. Verify that the value of C.type is the string webauthn.get. + if c.Type != ceremony { + err := ErrVerification.WithDetails("Error validating ceremony type") + err.WithInfo(fmt.Sprintf("Expected Value: %s\n Received: %s\n", ceremony, c.Type)) + return err + } + + // Registration Step 4. Verify that the value of C.challenge matches the challenge + // that was sent to the authenticator in the create() call. + + // Assertion Step 8. Verify that the value of C.challenge matches the challenge + // that was sent to the authenticator in the PublicKeyCredentialRequestOptions + // passed to the get() call. + + challenge := c.Challenge + if 0 != strings.Compare(storedChallenge, challenge) { + err := ErrVerification.WithDetails("Error validating challenge") + return err.WithInfo(fmt.Sprintf("Expected b Value: %#v\nReceived b: %#v\n", storedChallenge, challenge)) + } + + // Registration Step 5 & Assertion Step 9. Verify that the value of C.origin matches + // the Relying Party's origin. + clientDataOrigin, err := url.Parse(c.Origin) + if err != nil { + return ErrParsingData.WithDetails("Error decoding clientData origin as URL") + } + + if !strings.EqualFold(FullyQualifiedOrigin(clientDataOrigin), relyingPartyOrigin) { + err := ErrVerification.WithDetails("Error validating origin") + return err.WithInfo(fmt.Sprintf("Expected Value: %s\n Received: %s\n", relyingPartyOrigin, FullyQualifiedOrigin(clientDataOrigin))) + } + + // Registration Step 6 and Assertion Step 10. Verify that the value of C.tokenBinding.status + // matches the state of Token Binding for the TLS connection over which the assertion was + // obtained. If Token Binding was used on that TLS connection, also verify that C.tokenBinding.id + // matches the base64url encoding of the Token Binding ID for the connection. + if c.TokenBinding != nil { + if c.TokenBinding.Status == "" { + return ErrParsingData.WithDetails("Error decoding clientData, token binding present without status") + } + if c.TokenBinding.Status != Present && c.TokenBinding.Status != Supported && c.TokenBinding.Status != NotSupported { + return ErrParsingData.WithDetails("Error decoding clientData, token binding present with invalid status").WithInfo(fmt.Sprintf("Got: %s\n", c.TokenBinding.Status)) + } + } + // Not yet fully implemented by the spec, browsers, and me. + + return nil +} diff --git a/vendor/github.com/duo-labs/webauthn/protocol/credential.go b/vendor/github.com/duo-labs/webauthn/protocol/credential.go new file mode 100644 index 0000000000000..a43369cbf39e4 --- /dev/null +++ b/vendor/github.com/duo-labs/webauthn/protocol/credential.go @@ -0,0 +1,216 @@ +package protocol + +import ( + "crypto/sha256" + "encoding/base64" + "encoding/json" + "io" + "net/http" +) + +// The basic credential type that is inherited by WebAuthn's +// PublicKeyCredential type +// https://w3c.github.io/webappsec-credential-management/#credential +type Credential struct { + // ID is The credential’s identifier. The requirements for the + // identifier are distinct for each type of credential. It might + // represent a username for username/password tuples, for example. + ID string `json:"id"` + // Type is the value of the object’s interface object's [[type]] slot, + // which specifies the credential type represented by this object. + // This should be type "public-key" for Webauthn credentials. + Type string `json:"type"` +} + +// The PublicKeyCredential interface inherits from Credential, and contains +// the attributes that are returned to the caller when a new credential +// is created, or a new assertion is requested. +type ParsedCredential struct { + ID string `cbor:"id"` + Type string `cbor:"type"` +} + +type PublicKeyCredential struct { + Credential + RawID URLEncodedBase64 `json:"rawId"` + ClientExtensionResults AuthenticationExtensionsClientOutputs `json:"clientExtensionResults,omitempty"` +} + +type ParsedPublicKeyCredential struct { + ParsedCredential + RawID []byte `json:"rawId"` + ClientExtensionResults AuthenticationExtensionsClientOutputs `json:"clientExtensionResults,omitempty"` +} + +type CredentialCreationResponse struct { + PublicKeyCredential + AttestationResponse AuthenticatorAttestationResponse `json:"response"` +} + +type ParsedCredentialCreationData struct { + ParsedPublicKeyCredential + Response ParsedAttestationResponse + Raw CredentialCreationResponse +} + +func ParseCredentialCreationResponse(response *http.Request) (*ParsedCredentialCreationData, error) { + if response == nil || response.Body == nil { + return nil, ErrBadRequest.WithDetails("No response given") + } + return ParseCredentialCreationResponseBody(response.Body) +} + +func ParseCredentialCreationResponseBody(body io.Reader) (*ParsedCredentialCreationData, error) { + var ccr CredentialCreationResponse + err := json.NewDecoder(body).Decode(&ccr) + if err != nil { + return nil, ErrBadRequest.WithDetails("Parse error for Registration").WithInfo(err.Error()) + } + + if ccr.ID == "" { + return nil, ErrBadRequest.WithDetails("Parse error for Registration").WithInfo("Missing ID") + } + + testB64, err := base64.RawURLEncoding.DecodeString(ccr.ID) + if err != nil || !(len(testB64) > 0) { + return nil, ErrBadRequest.WithDetails("Parse error for Registration").WithInfo("ID not base64.RawURLEncoded") + } + + if ccr.PublicKeyCredential.Credential.Type == "" { + return nil, ErrBadRequest.WithDetails("Parse error for Registration").WithInfo("Missing type") + } + + if ccr.PublicKeyCredential.Credential.Type != "public-key" { + return nil, ErrBadRequest.WithDetails("Parse error for Registration").WithInfo("Type not public-key") + } + + var pcc ParsedCredentialCreationData + pcc.ID, pcc.RawID, pcc.Type = ccr.ID, ccr.RawID, ccr.Type + pcc.Raw = ccr + + parsedAttestationResponse, err := ccr.AttestationResponse.Parse() + if err != nil { + return nil, ErrParsingData.WithDetails("Error parsing attestation response") + } + + pcc.Response = *parsedAttestationResponse + + return &pcc, nil +} + +// Verifies the Client and Attestation data as laid out by §7.1. Registering a new credential +// https://www.w3.org/TR/webauthn/#registering-a-new-credential +func (pcc *ParsedCredentialCreationData) Verify(storedChallenge string, verifyUser bool, relyingPartyID, relyingPartyOrigin string) error { + + // Handles steps 3 through 6 - Verifying the Client Data against the Relying Party's stored data + verifyError := pcc.Response.CollectedClientData.Verify(storedChallenge, CreateCeremony, relyingPartyOrigin) + if verifyError != nil { + return verifyError + } + + // Step 7. Compute the hash of response.clientDataJSON using SHA-256. + clientDataHash := sha256.Sum256(pcc.Raw.AttestationResponse.ClientDataJSON) + + // Step 8. Perform CBOR decoding on the attestationObject field of the AuthenticatorAttestationResponse + // structure to obtain the attestation statement format fmt, the authenticator data authData, and the + // attestation statement attStmt. is handled while + + // We do the above step while parsing and decoding the CredentialCreationResponse + // Handle steps 9 through 14 - This verifies the attestaion object and + verifyError = pcc.Response.AttestationObject.Verify(relyingPartyID, clientDataHash[:], verifyUser) + if verifyError != nil { + return verifyError + } + + // Step 15. If validation is successful, obtain a list of acceptable trust anchors (attestation root + // certificates or ECDAA-Issuer public keys) for that attestation type and attestation statement + // format fmt, from a trusted source or from policy. For example, the FIDO Metadata Service provides + // one way to obtain such information, using the aaguid in the attestedCredentialData in authData. + // [https://fidoalliance.org/specs/fido-v2.0-id-20180227/fido-metadata-service-v2.0-id-20180227.html] + + // TODO: There are no valid AAGUIDs yet or trust sources supported. We could implement policy for the RP in + // the future, however. + + // Step 16. Assess the attestation trustworthiness using outputs of the verification procedure in step 14, as follows: + // - If self attestation was used, check if self attestation is acceptable under Relying Party policy. + // - If ECDAA was used, verify that the identifier of the ECDAA-Issuer public key used is included in + // the set of acceptable trust anchors obtained in step 15. + // - Otherwise, use the X.509 certificates returned by the verification procedure to verify that the + // attestation public key correctly chains up to an acceptable root certificate. + + // TODO: We're not supporting trust anchors, self-attestation policy, or acceptable root certs yet + + // Step 17. Check that the credentialId is not yet registered to any other user. If registration is + // requested for a credential that is already registered to a different user, the Relying Party SHOULD + // fail this registration ceremony, or it MAY decide to accept the registration, e.g. while deleting + // the older registration. + + // TODO: We can't support this in the code's current form, the Relying Party would need to check for this + // against their database + + // Step 18 If the attestation statement attStmt verified successfully and is found to be trustworthy, then + // register the new credential with the account that was denoted in the options.user passed to create(), by + // associating it with the credentialId and credentialPublicKey in the attestedCredentialData in authData, as + // appropriate for the Relying Party's system. + + // Step 19. If the attestation statement attStmt successfully verified but is not trustworthy per step 16 above, + // the Relying Party SHOULD fail the registration ceremony. + + // TODO: Not implemented for the reasons mentioned under Step 16 + + return nil +} + +// GetAppID takes a AuthenticationExtensions object or nil. It then performs the following checks in order: +// +// 1. Check that the Session Data's AuthenticationExtensions has been provided and return a blank appid if it hasn't been. +// 2. Check that the AuthenticationExtensionsClientOutputs contains the extensions output and return a blank appid if it doesn't. +// 3. Check that the Credential AttestationType is `fido-u2f` and return a blank appid if it isn't. +// 4. Check that the AuthenticationExtensionsClientOutputs contains the appid key and return a blank appid if it doesn't. +// 5. Check that the AuthenticationExtensionsClientOutputs appid is a bool and return an error if it isn't. +// 6. Check that the appid output is true and return a blank appid if it isn't. +// 7. Check that the Session Data has an appid extension defined and return an error if it doesn't. +// 8. Check that the appid extension in Session Data is a string and return an error if it isn't. +// 9. Return the appid extension value from the Session Data. +func (ppkc ParsedPublicKeyCredential) GetAppID(authExt AuthenticationExtensions, credentialAttestationType string) (appID string, err error) { + var ( + value, clientValue interface{} + enableAppID, ok bool + ) + + if authExt == nil { + return "", nil + } + + if ppkc.ClientExtensionResults == nil { + return "", nil + } + + // If the credential does not have the correct attestation type it is assumed to NOT be a fido-u2f credential. + // https://w3c.github.io/webauthn/#sctn-fido-u2f-attestation + if credentialAttestationType != "fido-u2f" { + return "", nil + } + + if clientValue, ok = ppkc.ClientExtensionResults["appid"]; !ok { + return "", nil + } + + if enableAppID, ok = clientValue.(bool); !ok { + return "", ErrBadRequest.WithDetails("Client Output appid did not have the expected type") + } + + if !enableAppID { + return "", nil + } + + if value, ok = authExt["appid"]; !ok { + return "", ErrBadRequest.WithDetails("Session Data does not have an appid but Client Output indicates it should be set") + } + + if appID, ok = value.(string); !ok { + return "", ErrBadRequest.WithDetails("Session Data appid did not have the expected type") + } + + return appID, nil +} diff --git a/vendor/github.com/duo-labs/webauthn/protocol/doc.go b/vendor/github.com/duo-labs/webauthn/protocol/doc.go new file mode 100644 index 0000000000000..11101f56abd0f --- /dev/null +++ b/vendor/github.com/duo-labs/webauthn/protocol/doc.go @@ -0,0 +1,8 @@ +// The protocol package contains data structures and validation functionality +// outlined in the Web Authnentication specification (https://www.w3.org/TR/webauthn). +// The data structures here attempt to conform as much as possible to their definitions, +// but some structs (like those that are used as part of validation steps) contain +// additional fields that help us unpack and validate the data we unmarshall. +// When implementing this library, most developers will primarily be using the API +// outlined in the webauthn package. +package protocol diff --git a/vendor/github.com/duo-labs/webauthn/protocol/entities.go b/vendor/github.com/duo-labs/webauthn/protocol/entities.go new file mode 100644 index 0000000000000..5b146caac60c4 --- /dev/null +++ b/vendor/github.com/duo-labs/webauthn/protocol/entities.go @@ -0,0 +1,48 @@ +package protocol + +// From §5.4.1 (https://www.w3.org/TR/webauthn/#dictionary-pkcredentialentity). +// PublicKeyCredentialEntity describes a user account, or a WebAuthn Relying Party, +// with which a public key credential is associated. +type CredentialEntity struct { + // A human-palatable name for the entity. Its function depends on what the PublicKeyCredentialEntity represents: + // + // When inherited by PublicKeyCredentialRpEntity it is a human-palatable identifier for the Relying Party, + // intended only for display. For example, "ACME Corporation", "Wonderful Widgets, Inc." or "ОАО Примертех". + // + // When inherited by PublicKeyCredentialUserEntity, it is a human-palatable identifier for a user account. It is + // intended only for display, i.e., aiding the user in determining the difference between user accounts with similar + // displayNames. For example, "alexm", "alex.p.mueller@example.com" or "+14255551234". + Name string `json:"name"` + // A serialized URL which resolves to an image associated with the entity. For example, + // this could be a user’s avatar or a Relying Party's logo. This URL MUST be an a priori + // authenticated URL. Authenticators MUST accept and store a 128-byte minimum length for + // an icon member’s value. Authenticators MAY ignore an icon member’s value if its length + // is greater than 128 bytes. The URL’s scheme MAY be "data" to avoid fetches of the URL, + // at the cost of needing more storage. + Icon string `json:"icon,omitempty"` +} + +// From §5.4.2 (https://www.w3.org/TR/webauthn/#sctn-rp-credential-params). +// The PublicKeyCredentialRpEntity is used to supply additional +// Relying Party attributes when creating a new credential. +type RelyingPartyEntity struct { + CredentialEntity + // A unique identifier for the Relying Party entity, which sets the RP ID. + ID string `json:"id"` +} + +// From §5.4.3 (https://www.w3.org/TR/webauthn/#sctn-user-credential-params). +// The PublicKeyCredentialUserEntity is used to supply additional +// user account attributes when creating a new credential. +type UserEntity struct { + CredentialEntity + // A human-palatable name for the user account, intended only for display. + // For example, "Alex P. Müller" or "田中 倫". The Relying Party SHOULD let + // the user choose this, and SHOULD NOT restrict the choice more than necessary. + DisplayName string `json:"displayName,omitempty"` + // ID is the user handle of the user account entity. To ensure secure operation, + // authentication and authorization decisions MUST be made on the basis of this id + // member, not the displayName nor name members. See Section 6.1 of + // [RFC8266](https://www.w3.org/TR/webauthn/#biblio-rfc8266). + ID []byte `json:"id"` +} diff --git a/vendor/github.com/duo-labs/webauthn/protocol/errors.go b/vendor/github.com/duo-labs/webauthn/protocol/errors.go new file mode 100644 index 0000000000000..a7c8ff0671127 --- /dev/null +++ b/vendor/github.com/duo-labs/webauthn/protocol/errors.go @@ -0,0 +1,85 @@ +package protocol + +type Error struct { + // Short name for the type of error that has occurred + Type string `json:"type"` + // Additional details about the error + Details string `json:"error"` + // Information to help debug the error + DevInfo string `json:"debug"` +} + +var ( + ErrBadRequest = &Error{ + Type: "invalid_request", + Details: "Error reading the requst data", + } + ErrChallengeMismatch = &Error{ + Type: "challenge_mismatch", + Details: "Stored challenge and received challenge do not match", + } + ErrParsingData = &Error{ + Type: "parse_error", + Details: "Error parsing the authenticator response", + } + ErrAuthData = &Error{ + Type: "auth_data", + Details: "Error verifying the authenticator data", + } + ErrVerification = &Error{ + Type: "verification_error", + Details: "Error validating the authenticator response", + } + ErrAttestation = &Error{ + Type: "attesation_error", + Details: "Error validating the attestation data provided", + } + ErrInvalidAttestation = &Error{ + Type: "invalid_attestation", + Details: "Invalid attestation data", + } + ErrAttestationFormat = &Error{ + Type: "invalid_attestation", + Details: "Invalid attestation format", + } + ErrAttestationCertificate = &Error{ + Type: "invalid_certificate", + Details: "Invalid attestation certificate", + } + ErrAssertionSignature = &Error{ + Type: "invalid_signature", + Details: "Assertion Signature against auth data and client hash is not valid", + } + ErrUnsupportedKey = &Error{ + Type: "invalid_key_type", + Details: "Unsupported Public Key Type", + } + ErrUnsupportedAlgorithm = &Error{ + Type: "unsupported_key_algorithm", + Details: "Unsupported public key algorithm", + } + ErrNotSpecImplemented = &Error{ + Type: "spec_unimplemented", + Details: "This field is not yet supported by the WebAuthn spec", + } + ErrNotImplemented = &Error{ + Type: "not_implemented", + Details: "This field is not yet supported by this library", + } +) + +func (err *Error) Error() string { + return err.Details +} + +func (passedError *Error) WithDetails(details string) *Error { + err := *passedError + err.Details = details + return &err +} + +func (passedError *Error) WithInfo(info string) *Error { + err := *passedError + err.DevInfo = info + return &err +} diff --git a/vendor/github.com/duo-labs/webauthn/protocol/extensions.go b/vendor/github.com/duo-labs/webauthn/protocol/extensions.go new file mode 100644 index 0000000000000..e0b385a035e92 --- /dev/null +++ b/vendor/github.com/duo-labs/webauthn/protocol/extensions.go @@ -0,0 +1,8 @@ +package protocol + +// Extensions are discussed in §9. WebAuthn Extensions (https://www.w3.org/TR/webauthn/#extensions). + +// For a list of commonly supported extenstions, see §10. Defined Extensions +// (https://www.w3.org/TR/webauthn/#sctn-defined-extensions). + +type AuthenticationExtensionsClientOutputs map[string]interface{} diff --git a/vendor/github.com/duo-labs/webauthn/protocol/googletpm/certinfo.go b/vendor/github.com/duo-labs/webauthn/protocol/googletpm/certinfo.go new file mode 100644 index 0000000000000..08ae3a9933153 --- /dev/null +++ b/vendor/github.com/duo-labs/webauthn/protocol/googletpm/certinfo.go @@ -0,0 +1,282 @@ +package googletpm + +import ( + "bytes" + "crypto/sha1" + "crypto/sha256" + "crypto/sha512" + "fmt" + "hash" +) + +// DecodeAttestationData decode a TPMS_ATTEST message. No error is returned if +// the input has extra trailing data. +func DecodeAttestationData(in []byte) (*AttestationData, error) { + buf := bytes.NewBuffer(in) + + var ad AttestationData + if err := UnpackBuf(buf, &ad.Magic, &ad.Type); err != nil { + return nil, fmt.Errorf("decoding Magic/Type: %v", err) + } + n, err := decodeName(buf) + if err != nil { + return nil, fmt.Errorf("decoding QualifiedSigner: %v", err) + } + ad.QualifiedSigner = *n + if err := UnpackBuf(buf, &ad.ExtraData, &ad.ClockInfo, &ad.FirmwareVersion); err != nil { + return nil, fmt.Errorf("decoding ExtraData/ClockInfo/FirmwareVersion: %v", err) + } + + // The spec specifies several other types of attestation data. We only need + // parsing of Certify & Creation attestation data for now. If you need + // support for other attestation types, add them here. + switch ad.Type { + case TagAttestCertify: + if ad.AttestedCertifyInfo, err = decodeCertifyInfo(buf); err != nil { + return nil, fmt.Errorf("decoding AttestedCertifyInfo: %v", err) + } + case TagAttestCreation: + if ad.AttestedCreationInfo, err = decodeCreationInfo(buf); err != nil { + return nil, fmt.Errorf("decoding AttestedCreationInfo: %v", err) + } + case TagAttestQuote: + if ad.AttestedQuoteInfo, err = decodeQuoteInfo(buf); err != nil { + return nil, fmt.Errorf("decoding AttestedQuoteInfo: %v", err) + } + default: + return nil, fmt.Errorf("only Certify & Creation attestation structures are supported, got type 0x%x", ad.Type) + } + + return &ad, nil +} + +// AttestationData contains data attested by TPM commands (like Certify). +type AttestationData struct { + Magic uint32 + Type Tag + QualifiedSigner Name + ExtraData []byte + ClockInfo ClockInfo + FirmwareVersion uint64 + AttestedCertifyInfo *CertifyInfo + AttestedQuoteInfo *QuoteInfo + AttestedCreationInfo *CreationInfo +} + +// Tag is a command tag. +type Tag uint16 + +type Name struct { + Handle *Handle + Digest *HashValue +} + +// A Handle is a reference to a TPM object. +type Handle uint32 +type HashValue struct { + Alg Algorithm + Value []byte +} + +// ClockInfo contains TPM state info included in AttestationData. +type ClockInfo struct { + Clock uint64 + ResetCount uint32 + RestartCount uint32 + Safe byte +} + +// CertifyInfo contains Certify-specific data for TPMS_ATTEST. +type CertifyInfo struct { + Name Name + QualifiedName Name +} + +// QuoteInfo represents a TPMS_QUOTE_INFO structure. +type QuoteInfo struct { + PCRSelection PCRSelection + PCRDigest []byte +} + +// PCRSelection contains a slice of PCR indexes and a hash algorithm used in +// them. +type PCRSelection struct { + Hash Algorithm + PCRs []int +} + +// CreationInfo contains Creation-specific data for TPMS_ATTEST. +type CreationInfo struct { + Name Name + // Most TPM2B_Digest structures contain a TPMU_HA structure + // and get parsed to HashValue. This is never the case for the + // digest in TPMS_CREATION_INFO. + OpaqueDigest []byte +} + +func decodeName(in *bytes.Buffer) (*Name, error) { + var nameBuf []byte + if err := UnpackBuf(in, &nameBuf); err != nil { + return nil, err + } + + name := new(Name) + switch len(nameBuf) { + case 0: + // No name is present. + case 4: + name.Handle = new(Handle) + if err := UnpackBuf(bytes.NewBuffer(nameBuf), name.Handle); err != nil { + return nil, fmt.Errorf("decoding Handle: %v", err) + } + default: + var err error + name.Digest, err = decodeHashValue(bytes.NewBuffer(nameBuf)) + if err != nil { + return nil, fmt.Errorf("decoding Digest: %v", err) + } + } + return name, nil +} + +func decodeHashValue(in *bytes.Buffer) (*HashValue, error) { + var hv HashValue + if err := UnpackBuf(in, &hv.Alg); err != nil { + return nil, fmt.Errorf("decoding Alg: %v", err) + } + hfn, ok := hashConstructors[hv.Alg] + if !ok { + return nil, fmt.Errorf("unsupported hash algorithm type 0x%x", hv.Alg) + } + hv.Value = make([]byte, hfn().Size()) + if _, err := in.Read(hv.Value); err != nil { + return nil, fmt.Errorf("decoding Value: %v", err) + } + return &hv, nil +} + +// HashConstructor returns a function that can be used to make a +// hash.Hash using the specified algorithm. An error is returned +// if the algorithm is not a hash algorithm. +func (a Algorithm) HashConstructor() (func() hash.Hash, error) { + c, ok := hashConstructors[a] + if !ok { + return nil, fmt.Errorf("algorithm not supported: 0x%x", a) + } + return c, nil +} + +var hashConstructors = map[Algorithm]func() hash.Hash{ + AlgSHA1: sha1.New, + AlgSHA256: sha256.New, + AlgSHA384: sha512.New384, + AlgSHA512: sha512.New, +} + +// TPM Structure Tags. Tags are used to disambiguate structures, similar to Alg +// values: tag value defines what kind of data lives in a nested field. +const ( + TagNull Tag = 0x8000 + TagNoSessions Tag = 0x8001 + TagSessions Tag = 0x8002 + TagAttestCertify Tag = 0x8017 + TagAttestQuote Tag = 0x8018 + TagAttestCreation Tag = 0x801a + TagHashCheck Tag = 0x8024 +) + +func decodeCertifyInfo(in *bytes.Buffer) (*CertifyInfo, error) { + var ci CertifyInfo + + n, err := decodeName(in) + if err != nil { + return nil, fmt.Errorf("decoding Name: %v", err) + } + ci.Name = *n + + n, err = decodeName(in) + if err != nil { + return nil, fmt.Errorf("decoding QualifiedName: %v", err) + } + ci.QualifiedName = *n + + return &ci, nil +} + +func decodeCreationInfo(in *bytes.Buffer) (*CreationInfo, error) { + var ci CreationInfo + + n, err := decodeName(in) + if err != nil { + return nil, fmt.Errorf("decoding Name: %v", err) + } + ci.Name = *n + + if err := UnpackBuf(in, &ci.OpaqueDigest); err != nil { + return nil, fmt.Errorf("decoding Digest: %v", err) + } + + return &ci, nil +} + +func decodeQuoteInfo(in *bytes.Buffer) (*QuoteInfo, error) { + var out QuoteInfo + sel, err := decodeTPMLPCRSelection(in) + if err != nil { + return nil, fmt.Errorf("decoding PCRSelection: %v", err) + } + out.PCRSelection = sel + if err := UnpackBuf(in, &out.PCRDigest); err != nil { + return nil, fmt.Errorf("decoding PCRDigest: %v", err) + } + return &out, nil +} + +func decodeTPMLPCRSelection(buf *bytes.Buffer) (PCRSelection, error) { + var count uint32 + var sel PCRSelection + if err := UnpackBuf(buf, &count); err != nil { + return sel, err + } + switch count { + case 0: + sel.Hash = AlgUnknown + return sel, nil + case 1: // We only support decoding of a single PCRSelection. + default: + return sel, fmt.Errorf("decoding TPML_PCR_SELECTION list longer than 1 is not supported (got length %d)", count) + } + + // See comment in encodeTPMLPCRSelection for details on this format. + var ts tpmsPCRSelection + if err := UnpackBuf(buf, &ts.Hash, &ts.Size); err != nil { + return sel, err + } + ts.PCRs = make([]byte, ts.Size) + if _, err := buf.Read(ts.PCRs); err != nil { + return sel, err + } + + sel.Hash = ts.Hash + for i := 0; i < int(ts.Size); i++ { + for j := 0; j < 8; j++ { + set := ts.PCRs[i] & byte(1<= size { + *b = (*b)[:size] + } else { + *b = append(*b, make([]byte, size-len(*b))...) + } + case *[]Handle: + if len(*b) >= size { + *b = (*b)[:size] + } else { + *b = append(*b, make([]Handle, size-len(*b))...) + } + default: + return fmt.Errorf("can't fill pointer to %T, only []byte or []Handle slices", e) + } + + if err := binary.Read(buf, binary.BigEndian, e); err != nil { + return err + } + default: + if err := binary.Read(buf, binary.BigEndian, e); err != nil { + return err + } + } + + } + + return nil +} + +// lengthPrefixSize is the size in bytes of length prefix for byte slices. +// +// In TPM 1.2 this is 4 bytes. +// In TPM 2.0 this is 2 bytes. +var lengthPrefixSize int + +const ( + tpm12PrefixSize = 4 + tpm20PrefixSize = 2 +) + +// UseTPM20LengthPrefixSize makes Pack/Unpack use TPM 2.0 encoding for byte +// arrays. +func UseTPM20LengthPrefixSize() { + lengthPrefixSize = tpm20PrefixSize +} diff --git a/vendor/github.com/duo-labs/webauthn/protocol/googletpm/pubarea.go b/vendor/github.com/duo-labs/webauthn/protocol/googletpm/pubarea.go new file mode 100644 index 0000000000000..dd3288ff97922 --- /dev/null +++ b/vendor/github.com/duo-labs/webauthn/protocol/googletpm/pubarea.go @@ -0,0 +1,240 @@ +package googletpm + +import ( + "bytes" + "fmt" + "math/big" +) + +// DecodePublic decodes a TPMT_PUBLIC message. No error is returned if +// the input has extra trailing data. +func DecodePublic(buf []byte) (Public, error) { + in := bytes.NewBuffer(buf) + var pub Public + var err error + if err = UnpackBuf(in, &pub.Type, &pub.NameAlg, &pub.Attributes, &pub.AuthPolicy); err != nil { + return pub, fmt.Errorf("decoding TPMT_PUBLIC: %v", err) + } + + switch pub.Type { + case AlgRSA: + pub.RSAParameters, err = decodeRSAParams(in) + case AlgECC: + pub.ECCParameters, err = decodeECCParams(in) + default: + err = fmt.Errorf("unsupported type in TPMT_PUBLIC: %v", pub.Type) + } + return pub, err +} + +// Public contains the public area of an object. +type Public struct { + Type Algorithm + NameAlg Algorithm + Attributes KeyProp + AuthPolicy []byte + + // If Type is AlgKeyedHash, then do not set these. + // Otherwise, only one of the Parameters fields should be set. When encoding/decoding, + // one will be picked based on Type. + RSAParameters *RSAParams + ECCParameters *ECCParams +} + +// Algorithm represents a TPM_ALG_ID value. +type Algorithm uint16 + +// KeyProp is a bitmask used in Attributes field of key templates. Individual +// flags should be OR-ed to form a full mask. +type KeyProp uint32 + +// Key properties. +const ( + FlagFixedTPM KeyProp = 0x00000002 + FlagFixedParent KeyProp = 0x00000010 + FlagSensitiveDataOrigin KeyProp = 0x00000020 + FlagUserWithAuth KeyProp = 0x00000040 + FlagAdminWithPolicy KeyProp = 0x00000080 + FlagNoDA KeyProp = 0x00000400 + FlagRestricted KeyProp = 0x00010000 + FlagDecrypt KeyProp = 0x00020000 + FlagSign KeyProp = 0x00040000 + + FlagSealDefault = FlagFixedTPM | FlagFixedParent + FlagSignerDefault = FlagSign | FlagRestricted | FlagFixedTPM | + FlagFixedParent | FlagSensitiveDataOrigin | FlagUserWithAuth + FlagStorageDefault = FlagDecrypt | FlagRestricted | FlagFixedTPM | + FlagFixedParent | FlagSensitiveDataOrigin | FlagUserWithAuth +) + +func decodeRSAParams(in *bytes.Buffer) (*RSAParams, error) { + var params RSAParams + var err error + + if params.Symmetric, err = decodeSymScheme(in); err != nil { + return nil, fmt.Errorf("decoding Symmetric: %v", err) + } + if params.Sign, err = decodeSigScheme(in); err != nil { + return nil, fmt.Errorf("decoding Sign: %v", err) + } + var modBytes []byte + if err := UnpackBuf(in, ¶ms.KeyBits, ¶ms.Exponent, &modBytes); err != nil { + return nil, fmt.Errorf("decoding KeyBits, Exponent, Modulus: %v", err) + } + if params.Exponent == 0 { + params.encodeDefaultExponentAsZero = true + params.Exponent = defaultRSAExponent + } + params.Modulus = new(big.Int).SetBytes(modBytes) + return ¶ms, nil +} + +const defaultRSAExponent = 1<<16 + 1 + +// RSAParams represents parameters of an RSA key pair. +// +// Symmetric and Sign may be nil, depending on key Attributes in Public. +// +// One of Modulus and ModulusRaw must always be non-nil. Modulus takes +// precedence. ModulusRaw is used for key templates where the field named +// "unique" must be a byte array of all zeroes. +type RSAParams struct { + Symmetric *SymScheme + Sign *SigScheme + KeyBits uint16 + // The default Exponent (65537) has two representations; the + // 0 value, and the value 65537. + // If encodeDefaultExponentAsZero is set, an exponent of 65537 + // will be encoded as zero. This is necessary to produce an identical + // encoded bitstream, so Name digest calculations will be correct. + encodeDefaultExponentAsZero bool + Exponent uint32 + ModulusRaw []byte + Modulus *big.Int +} + +// SymScheme represents a symmetric encryption scheme. +type SymScheme struct { + Alg Algorithm + KeyBits uint16 + Mode Algorithm +} // SigScheme represents a signing scheme. +type SigScheme struct { + Alg Algorithm + Hash Algorithm + Count uint32 +} + +func decodeSigScheme(in *bytes.Buffer) (*SigScheme, error) { + var scheme SigScheme + if err := UnpackBuf(in, &scheme.Alg); err != nil { + return nil, fmt.Errorf("decoding Alg: %v", err) + } + if scheme.Alg == AlgNull { + return nil, nil + } + if err := UnpackBuf(in, &scheme.Hash); err != nil { + return nil, fmt.Errorf("decoding Hash: %v", err) + } + if scheme.Alg.UsesCount() { + if err := UnpackBuf(in, &scheme.Count); err != nil { + return nil, fmt.Errorf("decoding Count: %v", err) + } + } + return &scheme, nil +} + +// UsesCount returns true if a signature algorithm uses count value. +func (a Algorithm) UsesCount() bool { + return a == AlgECDAA +} + +func decodeKDFScheme(in *bytes.Buffer) (*KDFScheme, error) { + var scheme KDFScheme + if err := UnpackBuf(in, &scheme.Alg); err != nil { + return nil, fmt.Errorf("decoding Alg: %v", err) + } + if scheme.Alg == AlgNull { + return nil, nil + } + if err := UnpackBuf(in, &scheme.Hash); err != nil { + return nil, fmt.Errorf("decoding Hash: %v", err) + } + return &scheme, nil +} +func decodeSymScheme(in *bytes.Buffer) (*SymScheme, error) { + var scheme SymScheme + if err := UnpackBuf(in, &scheme.Alg); err != nil { + return nil, fmt.Errorf("decoding Alg: %v", err) + } + if scheme.Alg == AlgNull { + return nil, nil + } + if err := UnpackBuf(in, &scheme.KeyBits, &scheme.Mode); err != nil { + return nil, fmt.Errorf("decoding KeyBits, Mode: %v", err) + } + return &scheme, nil +} +func decodeECCParams(in *bytes.Buffer) (*ECCParams, error) { + var params ECCParams + var err error + + if params.Symmetric, err = decodeSymScheme(in); err != nil { + return nil, fmt.Errorf("decoding Symmetric: %v", err) + } + if params.Sign, err = decodeSigScheme(in); err != nil { + return nil, fmt.Errorf("decoding Sign: %v", err) + } + if err := UnpackBuf(in, ¶ms.CurveID); err != nil { + return nil, fmt.Errorf("decoding CurveID: %v", err) + } + if params.KDF, err = decodeKDFScheme(in); err != nil { + return nil, fmt.Errorf("decoding KDF: %v", err) + } + var x, y []byte + if err := UnpackBuf(in, &x, &y); err != nil { + return nil, fmt.Errorf("decoding Point: %v", err) + } + params.Point.X = new(big.Int).SetBytes(x) + params.Point.Y = new(big.Int).SetBytes(y) + return ¶ms, nil +} + +// ECCParams represents parameters of an ECC key pair. +// +// Symmetric, Sign and KDF may be nil, depending on key Attributes in Public. +type ECCParams struct { + Symmetric *SymScheme + Sign *SigScheme + CurveID EllipticCurve + KDF *KDFScheme + Point ECPoint +} + +// EllipticCurve identifies specific EC curves. +type EllipticCurve uint16 + +// ECC curves supported by TPM 2.0 spec. +const ( + CurveNISTP192 = EllipticCurve(iota + 1) + CurveNISTP224 + CurveNISTP256 + CurveNISTP384 + CurveNISTP521 + + CurveBNP256 = EllipticCurve(iota + 10) + CurveBNP638 + + CurveSM2P256 = EllipticCurve(0x0020) +) + +// ECPoint represents a ECC coordinates for a point. +type ECPoint struct { + X, Y *big.Int +} + +// KDFScheme represents a KDF (Key Derivation Function) scheme. +type KDFScheme struct { + Alg Algorithm + Hash Algorithm +} diff --git a/vendor/github.com/duo-labs/webauthn/protocol/options.go b/vendor/github.com/duo-labs/webauthn/protocol/options.go new file mode 100644 index 0000000000000..f04e69ec80a63 --- /dev/null +++ b/vendor/github.com/duo-labs/webauthn/protocol/options.go @@ -0,0 +1,136 @@ +package protocol + +import ( + "github.com/duo-labs/webauthn/protocol/webauthncose" +) + +type CredentialCreation struct { + Response PublicKeyCredentialCreationOptions `json:"publicKey"` +} + +type CredentialAssertion struct { + Response PublicKeyCredentialRequestOptions `json:"publicKey"` +} + +// In order to create a Credential via create(), the caller specifies a few parameters in a CredentialCreationOptions object. +// See §5.4. Options for Credential Creation https://www.w3.org/TR/webauthn/#dictionary-makecredentialoptions +type PublicKeyCredentialCreationOptions struct { + Challenge Challenge `json:"challenge"` + RelyingParty RelyingPartyEntity `json:"rp"` + User UserEntity `json:"user"` + Parameters []CredentialParameter `json:"pubKeyCredParams,omitempty"` + AuthenticatorSelection AuthenticatorSelection `json:"authenticatorSelection,omitempty"` + Timeout int `json:"timeout,omitempty"` + CredentialExcludeList []CredentialDescriptor `json:"excludeCredentials,omitempty"` + Extensions AuthenticationExtensions `json:"extensions,omitempty"` + Attestation ConveyancePreference `json:"attestation,omitempty"` +} + +// The PublicKeyCredentialRequestOptions dictionary supplies get() with the data it needs to generate an assertion. +// Its challenge member MUST be present, while its other members are OPTIONAL. +// See §5.5. Options for Assertion Generation https://www.w3.org/TR/webauthn/#assertion-options +type PublicKeyCredentialRequestOptions struct { + Challenge Challenge `json:"challenge"` + Timeout int `json:"timeout,omitempty"` + RelyingPartyID string `json:"rpId,omitempty"` + AllowedCredentials []CredentialDescriptor `json:"allowCredentials,omitempty"` + UserVerification UserVerificationRequirement `json:"userVerification,omitempty"` // Default is "preferred" + Extensions AuthenticationExtensions `json:"extensions,omitempty"` +} + +// This dictionary contains the attributes that are specified by a caller when referring to a public +// key credential as an input parameter to the create() or get() methods. It mirrors the fields of +// the PublicKeyCredential object returned by the latter methods. +// See §5.10.3. Credential Descriptor https://www.w3.org/TR/webauthn/#credential-dictionary +type CredentialDescriptor struct { + // The valid credential types. + Type CredentialType `json:"type"` + // CredentialID The ID of a credential to allow/disallow + CredentialID []byte `json:"id"` + // The authenticator transports that can be used + Transport []AuthenticatorTransport `json:"transports,omitempty"` +} + +// CredentialParameter is the credential type and algorithm +// that the relying party wants the authenticator to create +type CredentialParameter struct { + Type CredentialType `json:"type"` + Algorithm webauthncose.COSEAlgorithmIdentifier `json:"alg"` +} + +// This enumeration defines the valid credential types. +// It is an extension point; values can be added to it in the future, as +// more credential types are defined. The values of this enumeration are used +// for versioning the Authentication Assertion and attestation structures according +// to the type of the authenticator. +// See §5.10.3. Credential Descriptor https://www.w3.org/TR/webauthn/#credentialType +type CredentialType string + +const ( + // PublicKeyCredentialType - Currently one credential type is defined, namely "public-key". + PublicKeyCredentialType CredentialType = "public-key" +) + +// AuthenticationExtensions - referred to as AuthenticationExtensionsClientInputs in the +// spec document, this member contains additional parameters requesting additional processing +// by the client and authenticator. +// This is currently under development +type AuthenticationExtensions map[string]interface{} + +// WebAuthn Relying Parties may use the AuthenticatorSelectionCriteria dictionary to specify their requirements +// regarding authenticator attributes. See §5.4.4. Authenticator Selection Criteria +// https://www.w3.org/TR/webauthn/#authenticatorSelection +type AuthenticatorSelection struct { + // AuthenticatorAttachment If this member is present, eligible authenticators are filtered to only + // authenticators attached with the specified AuthenticatorAttachment enum + AuthenticatorAttachment AuthenticatorAttachment `json:"authenticatorAttachment,omitempty"` + // RequireResidentKey this member describes the Relying Party's requirements regarding resident + // credentials. If the parameter is set to true, the authenticator MUST create a client-side-resident + // public key credential source when creating a public key credential. + RequireResidentKey *bool `json:"requireResidentKey,omitempty"` + // UserVerification This member describes the Relying Party's requirements regarding user verification for + // the create() operation. Eligible authenticators are filtered to only those capable of satisfying this + // requirement. + UserVerification UserVerificationRequirement `json:"userVerification,omitempty"` +} + +// WebAuthn Relying Parties may use AttestationConveyancePreference to specify their preference regarding +// attestation conveyance during credential generation. See §5.4.6. https://www.w3.org/TR/webauthn/#attestation-convey +type ConveyancePreference string + +const ( + // The default value. This value indicates that the Relying Party is not interested in authenticator attestation. For example, + // in order to potentially avoid having to obtain user consent to relay identifying information to the Relying Party, or to + // save a roundtrip to an Attestation CA. + PreferNoAttestation ConveyancePreference = "none" + // This value indicates that the Relying Party prefers an attestation conveyance yielding verifiable attestation + // statements, but allows the client to decide how to obtain such attestation statements. The client MAY replace + // the authenticator-generated attestation statements with attestation statements generated by an Anonymization + // CA, in order to protect the user’s privacy, or to assist Relying Parties with attestation verification in a + // heterogeneous ecosystem. + PreferIndirectAttestation ConveyancePreference = "indirect" + // This value indicates that the Relying Party wants to receive the attestation statement as generated by the authenticator. + PreferDirectAttestation ConveyancePreference = "direct" +) + +func (a *PublicKeyCredentialRequestOptions) GetAllowedCredentialIDs() [][]byte { + var allowedCredentialIDs = make([][]byte, len(a.AllowedCredentials)) + for i, credential := range a.AllowedCredentials { + allowedCredentialIDs[i] = credential.CredentialID + } + return allowedCredentialIDs +} + +type Extensions interface{} + +type ServerResponse struct { + Status ServerResponseStatus `json:"status"` + Message string `json:"errorMessage"` +} + +type ServerResponseStatus string + +const ( + StatusOk ServerResponseStatus = "ok" + StatusFailed ServerResponseStatus = "failed" +) diff --git a/vendor/github.com/duo-labs/webauthn/protocol/signature_algorithms.go b/vendor/github.com/duo-labs/webauthn/protocol/signature_algorithms.go new file mode 100644 index 0000000000000..2d0eaff9f04d5 --- /dev/null +++ b/vendor/github.com/duo-labs/webauthn/protocol/signature_algorithms.go @@ -0,0 +1 @@ +package protocol diff --git a/vendor/github.com/duo-labs/webauthn/protocol/webauthncose/ed25519.go b/vendor/github.com/duo-labs/webauthn/protocol/webauthncose/ed25519.go new file mode 100644 index 0000000000000..73ebc8709252d --- /dev/null +++ b/vendor/github.com/duo-labs/webauthn/protocol/webauthncose/ed25519.go @@ -0,0 +1,12 @@ +// +build go1.13 + +package webauthncose + +import ( + "crypto/ed25519" + "crypto/x509" +) + +func marshalEd25519PublicKey(pub ed25519.PublicKey) ([]byte, error) { + return x509.MarshalPKIXPublicKey(pub) +} diff --git a/vendor/github.com/duo-labs/webauthn/protocol/webauthncose/ed25519_go112.go b/vendor/github.com/duo-labs/webauthn/protocol/webauthncose/ed25519_go112.go new file mode 100644 index 0000000000000..f1ae39d72f767 --- /dev/null +++ b/vendor/github.com/duo-labs/webauthn/protocol/webauthncose/ed25519_go112.go @@ -0,0 +1,38 @@ +// +build !go1.13 + +package webauthncose + +import ( + "crypto/x509/pkix" + "encoding/asn1" + + "golang.org/x/crypto/ed25519" +) + +var oidSignatureEd25519 = asn1.ObjectIdentifier{1, 3, 101, 112} + +type pkixPublicKey struct { + Algo pkix.AlgorithmIdentifier + BitString asn1.BitString +} + +// marshalEd25519PublicKey is a backport of the functionality introduced in +// Go v1.13. +// Ref: https://golang.org/doc/go1.13#crypto/ed25519 +// Ref: https://golang.org/doc/go1.13#crypto/x509 +func marshalEd25519PublicKey(pub ed25519.PublicKey) ([]byte, error) { + publicKeyBytes := pub + var publicKeyAlgorithm pkix.AlgorithmIdentifier + publicKeyAlgorithm.Algorithm = oidSignatureEd25519 + + pkix := pkixPublicKey{ + Algo: publicKeyAlgorithm, + BitString: asn1.BitString{ + Bytes: publicKeyBytes, + BitLength: 8 * len(publicKeyBytes), + }, + } + + ret, _ := asn1.Marshal(pkix) + return ret, nil +} diff --git a/vendor/github.com/duo-labs/webauthn/protocol/webauthncose/webauthncose.go b/vendor/github.com/duo-labs/webauthn/protocol/webauthncose/webauthncose.go new file mode 100644 index 0000000000000..7133cf235d927 --- /dev/null +++ b/vendor/github.com/duo-labs/webauthn/protocol/webauthncose/webauthncose.go @@ -0,0 +1,400 @@ +package webauthncose + +import ( + "crypto" + "crypto/ecdsa" + "crypto/elliptic" + "crypto/rsa" + "crypto/x509" + "encoding/asn1" + "encoding/pem" + "fmt" + "hash" + "math/big" + + "github.com/fxamacker/cbor/v2" + "golang.org/x/crypto/ed25519" +) + +// PublicKeyData The public key portion of a Relying Party-specific credential key pair, generated +// by an authenticator and returned to a Relying Party at registration time. We unpack this object +// using fxamacker's cbor library ("github.com/fxamacker/cbor/v2") which is why there are cbor tags +// included. The tag field values correspond to the IANA COSE keys that give their respective +// values. +// See §6.4.1.1 https://www.w3.org/TR/webauthn/#sctn-encoded-credPubKey-examples for examples of this +// COSE data. +type PublicKeyData struct { + // Decode the results to int by default. + _struct bool `cbor:",keyasint" json:"public_key"` + // The type of key created. Should be OKP, EC2, or RSA. + KeyType int64 `cbor:"1,keyasint" json:"kty"` + // A COSEAlgorithmIdentifier for the algorithm used to derive the key signature. + Algorithm int64 `cbor:"3,keyasint" json:"alg"` +} +type EC2PublicKeyData struct { + PublicKeyData + // If the key type is EC2, the curve on which we derive the signature from. + Curve int64 `cbor:"-1,keyasint,omitempty" json:"crv"` + // A byte string 32 bytes in length that holds the x coordinate of the key. + XCoord []byte `cbor:"-2,keyasint,omitempty" json:"x"` + // A byte string 32 bytes in length that holds the y coordinate of the key. + YCoord []byte `cbor:"-3,keyasint,omitempty" json:"y"` +} + +type RSAPublicKeyData struct { + PublicKeyData + // Represents the modulus parameter for the RSA algorithm + Modulus []byte `cbor:"-1,keyasint,omitempty" json:"n"` + // Represents the exponent parameter for the RSA algorithm + Exponent []byte `cbor:"-2,keyasint,omitempty" json:"e"` +} + +type OKPPublicKeyData struct { + PublicKeyData + Curve int64 + // A byte string that holds the x coordinate of the key. + XCoord []byte `cbor:"-2,keyasint,omitempty" json:"x"` +} + +// Verify Octet Key Pair (OKP) Public Key Signature +func (k *OKPPublicKeyData) Verify(data []byte, sig []byte) (bool, error) { + var key ed25519.PublicKey = make([]byte, ed25519.PublicKeySize) + copy(key, k.XCoord) + return ed25519.Verify(key, data, sig), nil +} + +// Verify Elliptic Curce Public Key Signature +func (k *EC2PublicKeyData) Verify(data []byte, sig []byte) (bool, error) { + var curve elliptic.Curve + switch COSEAlgorithmIdentifier(k.Algorithm) { + case AlgES512: // IANA COSE code for ECDSA w/ SHA-512 + curve = elliptic.P521() + case AlgES384: // IANA COSE code for ECDSA w/ SHA-384 + curve = elliptic.P384() + case AlgES256: // IANA COSE code for ECDSA w/ SHA-256 + curve = elliptic.P256() + default: + return false, ErrUnsupportedAlgorithm + } + + pubkey := &ecdsa.PublicKey{ + Curve: curve, + X: big.NewInt(0).SetBytes(k.XCoord), + Y: big.NewInt(0).SetBytes(k.YCoord), + } + + type ECDSASignature struct { + R, S *big.Int + } + + e := &ECDSASignature{} + f := HasherFromCOSEAlg(COSEAlgorithmIdentifier(k.PublicKeyData.Algorithm)) + h := f() + h.Write(data) + _, err := asn1.Unmarshal(sig, e) + if err != nil { + return false, ErrSigNotProvidedOrInvalid + } + return ecdsa.Verify(pubkey, h.Sum(nil), e.R, e.S), nil +} + +// Verify RSA Public Key Signature +func (k *RSAPublicKeyData) Verify(data []byte, sig []byte) (bool, error) { + pubkey := &rsa.PublicKey{ + N: big.NewInt(0).SetBytes(k.Modulus), + E: int(uint(k.Exponent[2]) | uint(k.Exponent[1])<<8 | uint(k.Exponent[0])<<16), + } + + f := HasherFromCOSEAlg(COSEAlgorithmIdentifier(k.PublicKeyData.Algorithm)) + h := f() + h.Write(data) + + var hash crypto.Hash + switch COSEAlgorithmIdentifier(k.PublicKeyData.Algorithm) { + case AlgRS1: + hash = crypto.SHA1 + case AlgPS256, AlgRS256: + hash = crypto.SHA256 + case AlgPS384, AlgRS384: + hash = crypto.SHA384 + case AlgPS512, AlgRS512: + hash = crypto.SHA512 + default: + return false, ErrUnsupportedAlgorithm + } + switch COSEAlgorithmIdentifier(k.PublicKeyData.Algorithm) { + case AlgPS256, AlgPS384, AlgPS512: + err := rsa.VerifyPSS(pubkey, hash, h.Sum(nil), sig, nil) + return err == nil, err + + case AlgRS1, AlgRS256, AlgRS384, AlgRS512: + err := rsa.VerifyPKCS1v15(pubkey, hash, h.Sum(nil), sig) + return err == nil, err + default: + return false, ErrUnsupportedAlgorithm + } +} + +// Return which signature algorithm is being used from the COSE Key +func SigAlgFromCOSEAlg(coseAlg COSEAlgorithmIdentifier) SignatureAlgorithm { + for _, details := range SignatureAlgorithmDetails { + if details.coseAlg == coseAlg { + return details.algo + } + } + return UnknownSignatureAlgorithm +} + +// Return the Hashing interface to be used for a given COSE Algorithm +func HasherFromCOSEAlg(coseAlg COSEAlgorithmIdentifier) func() hash.Hash { + for _, details := range SignatureAlgorithmDetails { + if details.coseAlg == coseAlg { + return details.hasher + } + } + // default to SHA256? Why not. + return crypto.SHA256.New +} + +// Figure out what kind of COSE material was provided and create the data for the new key +func ParsePublicKey(keyBytes []byte) (interface{}, error) { + pk := PublicKeyData{} + cbor.Unmarshal(keyBytes, &pk) + switch COSEKeyType(pk.KeyType) { + case OctetKey: + var o OKPPublicKeyData + cbor.Unmarshal(keyBytes, &o) + o.PublicKeyData = pk + return o, nil + case EllipticKey: + var e EC2PublicKeyData + cbor.Unmarshal(keyBytes, &e) + e.PublicKeyData = pk + return e, nil + case RSAKey: + var r RSAPublicKeyData + cbor.Unmarshal(keyBytes, &r) + r.PublicKeyData = pk + return r, nil + default: + return nil, ErrUnsupportedKey + } +} + +// ParseFIDOPublicKey is only used when the appID extension is configured by the assertion response. +func ParseFIDOPublicKey(keyBytes []byte) (EC2PublicKeyData, error) { + x, y := elliptic.Unmarshal(elliptic.P256(), keyBytes) + + return EC2PublicKeyData{ + PublicKeyData: PublicKeyData{ + Algorithm: int64(AlgES256), + }, + XCoord: x.Bytes(), + YCoord: y.Bytes(), + }, nil +} + +// COSEAlgorithmIdentifier From §5.10.5. A number identifying a cryptographic algorithm. The algorithm +// identifiers SHOULD be values registered in the IANA COSE Algorithms registry +// [https://www.w3.org/TR/webauthn/#biblio-iana-cose-algs-reg], for instance, -7 for "ES256" +// and -257 for "RS256". +type COSEAlgorithmIdentifier int + +const ( + // AlgES256 ECDSA with SHA-256 + AlgES256 COSEAlgorithmIdentifier = -7 + // AlgES384 ECDSA with SHA-384 + AlgES384 COSEAlgorithmIdentifier = -35 + // AlgES512 ECDSA with SHA-512 + AlgES512 COSEAlgorithmIdentifier = -36 + // AlgRS1 RSASSA-PKCS1-v1_5 with SHA-1 + AlgRS1 COSEAlgorithmIdentifier = -65535 + // AlgRS256 RSASSA-PKCS1-v1_5 with SHA-256 + AlgRS256 COSEAlgorithmIdentifier = -257 + // AlgRS384 RSASSA-PKCS1-v1_5 with SHA-384 + AlgRS384 COSEAlgorithmIdentifier = -258 + // AlgRS512 RSASSA-PKCS1-v1_5 with SHA-512 + AlgRS512 COSEAlgorithmIdentifier = -259 + // AlgPS256 RSASSA-PSS with SHA-256 + AlgPS256 COSEAlgorithmIdentifier = -37 + // AlgPS384 RSASSA-PSS with SHA-384 + AlgPS384 COSEAlgorithmIdentifier = -38 + // AlgPS512 RSASSA-PSS with SHA-512 + AlgPS512 COSEAlgorithmIdentifier = -39 + // AlgEdDSA EdDSA + AlgEdDSA COSEAlgorithmIdentifier = -8 +) + +// The Key Type derived from the IANA COSE AuthData +type COSEKeyType int + +const ( + // OctetKey is an Octet Key + OctetKey COSEKeyType = 1 + // EllipticKey is an Elliptic Curve Public Key + EllipticKey COSEKeyType = 2 + // RSAKey is an RSA Public Key + RSAKey COSEKeyType = 3 +) + +func VerifySignature(key interface{}, data []byte, sig []byte) (bool, error) { + + switch key.(type) { + case OKPPublicKeyData: + o := key.(OKPPublicKeyData) + return o.Verify(data, sig) + case EC2PublicKeyData: + e := key.(EC2PublicKeyData) + return e.Verify(data, sig) + case RSAPublicKeyData: + r := key.(RSAPublicKeyData) + return r.Verify(data, sig) + default: + return false, ErrUnsupportedKey + } +} + +func DisplayPublicKey(cpk []byte) string { + parsedKey, err := ParsePublicKey(cpk) + if err != nil { + return "Cannot display key" + } + switch parsedKey.(type) { + case RSAPublicKeyData: + pKey := parsedKey.(RSAPublicKeyData) + rKey := &rsa.PublicKey{ + N: big.NewInt(0).SetBytes(pKey.Modulus), + E: int(uint(pKey.Exponent[2]) | uint(pKey.Exponent[1])<<8 | uint(pKey.Exponent[0])<<16), + } + data, err := x509.MarshalPKIXPublicKey(rKey) + if err != nil { + return "Cannot display key" + } + pemBytes := pem.EncodeToMemory(&pem.Block{ + Type: "RSA PUBLIC KEY", + Bytes: data, + }) + return fmt.Sprintf("%s", pemBytes) + case EC2PublicKeyData: + pKey := parsedKey.(EC2PublicKeyData) + var curve elliptic.Curve + switch COSEAlgorithmIdentifier(pKey.Algorithm) { + case AlgES256: + curve = elliptic.P256() + case AlgES384: + curve = elliptic.P384() + case AlgES512: + curve = elliptic.P521() + default: + return "Cannot display key" + } + eKey := &ecdsa.PublicKey{ + Curve: curve, + X: big.NewInt(0).SetBytes(pKey.XCoord), + Y: big.NewInt(0).SetBytes(pKey.YCoord), + } + data, err := x509.MarshalPKIXPublicKey(eKey) + if err != nil { + return "Cannot display key" + } + pemBytes := pem.EncodeToMemory(&pem.Block{ + Type: "PUBLIC KEY", + Bytes: data, + }) + return fmt.Sprintf("%s", pemBytes) + case OKPPublicKeyData: + pKey := parsedKey.(OKPPublicKeyData) + if len(pKey.XCoord) != ed25519.PublicKeySize { + return "Cannot display key" + } + var oKey ed25519.PublicKey = make([]byte, ed25519.PublicKeySize) + copy(oKey, pKey.XCoord) + data, err := marshalEd25519PublicKey(oKey) + if err != nil { + return "Cannot display key" + } + pemBytes := pem.EncodeToMemory(&pem.Block{ + Type: "PUBLIC KEY", + Bytes: data, + }) + return fmt.Sprintf("%s", pemBytes) + + default: + return "Cannot display key of this type" + } +} + +// Algorithm enumerations used for +type SignatureAlgorithm int + +const ( + UnknownSignatureAlgorithm SignatureAlgorithm = iota + MD2WithRSA + MD5WithRSA + SHA1WithRSA + SHA256WithRSA + SHA384WithRSA + SHA512WithRSA + DSAWithSHA1 + DSAWithSHA256 + ECDSAWithSHA1 + ECDSAWithSHA256 + ECDSAWithSHA384 + ECDSAWithSHA512 + SHA256WithRSAPSS + SHA384WithRSAPSS + SHA512WithRSAPSS +) + +var SignatureAlgorithmDetails = []struct { + algo SignatureAlgorithm + coseAlg COSEAlgorithmIdentifier + name string + hasher func() hash.Hash +}{ + {SHA1WithRSA, AlgRS1, "SHA1-RSA", crypto.SHA1.New}, + {SHA256WithRSA, AlgRS256, "SHA256-RSA", crypto.SHA256.New}, + {SHA384WithRSA, AlgRS384, "SHA384-RSA", crypto.SHA384.New}, + {SHA512WithRSA, AlgRS512, "SHA512-RSA", crypto.SHA512.New}, + {SHA256WithRSAPSS, AlgPS256, "SHA256-RSAPSS", crypto.SHA256.New}, + {SHA384WithRSAPSS, AlgPS384, "SHA384-RSAPSS", crypto.SHA384.New}, + {SHA512WithRSAPSS, AlgPS512, "SHA512-RSAPSS", crypto.SHA512.New}, + {ECDSAWithSHA256, AlgES256, "ECDSA-SHA256", crypto.SHA256.New}, + {ECDSAWithSHA384, AlgES384, "ECDSA-SHA384", crypto.SHA384.New}, + {ECDSAWithSHA512, AlgES512, "ECDSA-SHA512", crypto.SHA512.New}, + {UnknownSignatureAlgorithm, AlgEdDSA, "EdDSA", crypto.SHA512.New}, +} + +type Error struct { + // Short name for the type of error that has occurred + Type string `json:"type"` + // Additional details about the error + Details string `json:"error"` + // Information to help debug the error + DevInfo string `json:"debug"` +} + +var ( + ErrUnsupportedKey = &Error{ + Type: "invalid_key_type", + Details: "Unsupported Public Key Type", + } + ErrUnsupportedAlgorithm = &Error{ + Type: "unsupported_key_algorithm", + Details: "Unsupported public key algorithm", + } + ErrSigNotProvidedOrInvalid = &Error{ + Type: "signature_not_provided_or_invalid", + Details: "Signature invalid or not provided", + } +) + +func (err *Error) Error() string { + return err.Details +} + +func (passedError *Error) WithDetails(details string) *Error { + err := *passedError + err.Details = details + return &err +} diff --git a/vendor/github.com/duo-labs/webauthn/webauthn/authenticator.go b/vendor/github.com/duo-labs/webauthn/webauthn/authenticator.go new file mode 100644 index 0000000000000..cbf99ed683e98 --- /dev/null +++ b/vendor/github.com/duo-labs/webauthn/webauthn/authenticator.go @@ -0,0 +1,51 @@ +package webauthn + +import ( + p "github.com/duo-labs/webauthn/protocol" +) + +type Authenticator struct { + // The AAGUID of the authenticator. An AAGUID is defined as an array containing the globally unique + // identifier of the authenticator model being sought. + AAGUID []byte + // SignCount -Upon a new login operation, the Relying Party compares the stored signature counter value + // with the new signCount value returned in the assertion’s authenticator data. If this new + // signCount value is less than or equal to the stored value, a cloned authenticator may + // exist, or the authenticator may be malfunctioning. + SignCount uint32 + // CloneWarning - This is a signal that the authenticator may be cloned, i.e. at least two copies of the + // credential private key may exist and are being used in parallel. Relying Parties should incorporate + // this information into their risk scoring. Whether the Relying Party updates the stored signature + // counter value in this case, or not, or fails the authentication ceremony or not, is Relying Party-specific. + CloneWarning bool +} + +// Allow for easy marhsalling of authenticator options that are provided to the user +func SelectAuthenticator(att string, rrk *bool, uv string) p.AuthenticatorSelection { + return p.AuthenticatorSelection{ + AuthenticatorAttachment: p.AuthenticatorAttachment(att), + RequireResidentKey: rrk, + UserVerification: p.UserVerificationRequirement(uv), + } +} + +// VerifyCounter +// Step 17 of §7.2. about verifying attestation. If the signature counter value authData.signCount +// is nonzero or the value stored in conjunction with credential’s id attribute is nonzero, then +// run the following sub-step: +// +// If the signature counter value authData.signCount is +// +// → Greater than the signature counter value stored in conjunction with credential’s id attribute. +// Update the stored signature counter value, associated with credential’s id attribute, to be the value of +// authData.signCount. +// +// → Less than or equal to the signature counter value stored in conjunction with credential’s id attribute. +// This is a signal that the authenticator may be cloned, see CloneWarning above for more information. +func (a *Authenticator) UpdateCounter(authDataCount uint32) { + if authDataCount <= a.SignCount && (authDataCount != 0 || a.SignCount != 0) { + a.CloneWarning = true + return + } + a.SignCount = authDataCount +} diff --git a/vendor/github.com/duo-labs/webauthn/webauthn/credential.go b/vendor/github.com/duo-labs/webauthn/webauthn/credential.go new file mode 100644 index 0000000000000..224bb7f6a4030 --- /dev/null +++ b/vendor/github.com/duo-labs/webauthn/webauthn/credential.go @@ -0,0 +1,35 @@ +package webauthn + +import ( + "github.com/duo-labs/webauthn/protocol" +) + +// Credential contains all needed information about a WebAuthn credential for storage +type Credential struct { + // A probabilistically-unique byte sequence identifying a public key credential source and its authentication assertions. + ID []byte + // The public key portion of a Relying Party-specific credential key pair, generated by an authenticator and returned to + // a Relying Party at registration time (see also public key credential). The private key portion of the credential key + // pair is known as the credential private key. Note that in the case of self attestation, the credential key pair is also + // used as the attestation key pair, see self attestation for details. + PublicKey []byte + // The attestation format used (if any) by the authenticator when creating the credential. + AttestationType string + // The Authenticator information for a given certificate + Authenticator Authenticator +} + +// MakeNewCredential will return a credential pointer on successful validation of a registration response +func MakeNewCredential(c *protocol.ParsedCredentialCreationData) (*Credential, error) { + newCredential := &Credential{ + ID: c.Response.AttestationObject.AuthData.AttData.CredentialID, + PublicKey: c.Response.AttestationObject.AuthData.AttData.CredentialPublicKey, + AttestationType: c.Response.AttestationObject.Format, + Authenticator: Authenticator{ + AAGUID: c.Response.AttestationObject.AuthData.AttData.AAGUID, + SignCount: c.Response.AttestationObject.AuthData.Counter, + }, + } + + return newCredential, nil +} diff --git a/vendor/github.com/duo-labs/webauthn/webauthn/doc.go b/vendor/github.com/duo-labs/webauthn/webauthn/doc.go new file mode 100644 index 0000000000000..4351233881158 --- /dev/null +++ b/vendor/github.com/duo-labs/webauthn/webauthn/doc.go @@ -0,0 +1,3 @@ +// Contains the API functionality of the library. After creating and configuring a webauthn object, users can +// call the object to create and validate web authentication credentials. +package webauthn diff --git a/vendor/github.com/duo-labs/webauthn/webauthn/login.go b/vendor/github.com/duo-labs/webauthn/webauthn/login.go new file mode 100644 index 0000000000000..4ce3a88d3f7e7 --- /dev/null +++ b/vendor/github.com/duo-labs/webauthn/webauthn/login.go @@ -0,0 +1,188 @@ +package webauthn + +import ( + "bytes" + "encoding/base64" + "net/http" + + "github.com/duo-labs/webauthn/protocol" +) + +// BEGIN REGISTRATION +// These objects help us creat the CredentialCreationOptions +// that will be passed to the authenticator via the user client + +// LoginOption is used to provide parameters that modify the default Credential Assertion Payload that is sent to the user. +type LoginOption func(*protocol.PublicKeyCredentialRequestOptions) + +// Creates the CredentialAssertion data payload that should be sent to the user agent for beginning the +// login/assertion process. The format of this data can be seen in §5.5 of the WebAuthn specification +// (https://www.w3.org/TR/webauthn/#assertion-options). These default values can be amended by providing +// additional LoginOption parameters. This function also returns sessionData, that must be stored by the +// RP in a secure manner and then provided to the FinishLogin function. This data helps us verify the +// ownership of the credential being retreived. +func (webauthn *WebAuthn) BeginLogin(user User, opts ...LoginOption) (*protocol.CredentialAssertion, *SessionData, error) { + challenge, err := protocol.CreateChallenge() + if err != nil { + return nil, nil, err + } + + credentials := user.WebAuthnCredentials() + + if len(credentials) == 0 { // If the user does not have any credentials, we cannot do login + return nil, nil, protocol.ErrBadRequest.WithDetails("Found no credentials for user") + } + + var allowedCredentials = make([]protocol.CredentialDescriptor, len(credentials)) + + for i, credential := range credentials { + var credentialDescriptor protocol.CredentialDescriptor + credentialDescriptor.CredentialID = credential.ID + credentialDescriptor.Type = protocol.PublicKeyCredentialType + allowedCredentials[i] = credentialDescriptor + } + + requestOptions := protocol.PublicKeyCredentialRequestOptions{ + Challenge: challenge, + Timeout: webauthn.Config.Timeout, + RelyingPartyID: webauthn.Config.RPID, + UserVerification: webauthn.Config.AuthenticatorSelection.UserVerification, + AllowedCredentials: allowedCredentials, + } + + for _, setter := range opts { + setter(&requestOptions) + } + + newSessionData := SessionData{ + Challenge: base64.RawURLEncoding.EncodeToString(challenge), + UserID: user.WebAuthnID(), + AllowedCredentialIDs: requestOptions.GetAllowedCredentialIDs(), + UserVerification: requestOptions.UserVerification, + Extensions: requestOptions.Extensions, + } + + response := protocol.CredentialAssertion{requestOptions} + + return &response, &newSessionData, nil +} + +// Updates the allowed credential list with Credential Descripiptors, discussed in §5.10.3 +// (https://www.w3.org/TR/webauthn/#dictdef-publickeycredentialdescriptor) with user-supplied values +func WithAllowedCredentials(allowList []protocol.CredentialDescriptor) LoginOption { + return func(cco *protocol.PublicKeyCredentialRequestOptions) { + cco.AllowedCredentials = allowList + } +} + +// Request a user verification preference +func WithUserVerification(userVerification protocol.UserVerificationRequirement) LoginOption { + return func(cco *protocol.PublicKeyCredentialRequestOptions) { + cco.UserVerification = userVerification + } +} + +// Request additional extensions for assertion +func WithAssertionExtensions(extensions protocol.AuthenticationExtensions) LoginOption { + return func(cco *protocol.PublicKeyCredentialRequestOptions) { + cco.Extensions = extensions + } +} + +// Take the response from the client and validate it against the user credentials and stored session data +func (webauthn *WebAuthn) FinishLogin(user User, session SessionData, response *http.Request) (*Credential, error) { + parsedResponse, err := protocol.ParseCredentialRequestResponse(response) + if err != nil { + return nil, err + } + + return webauthn.ValidateLogin(user, session, parsedResponse) +} + +// ValidateLogin takes a parsed response and validates it against the user credentials and session data +func (webauthn *WebAuthn) ValidateLogin(user User, session SessionData, parsedResponse *protocol.ParsedCredentialAssertionData) (*Credential, error) { + if !bytes.Equal(user.WebAuthnID(), session.UserID) { + return nil, protocol.ErrBadRequest.WithDetails("ID mismatch for User and Session") + } + + // Step 1. If the allowCredentials option was given when this authentication ceremony was initiated, + // verify that credential.id identifies one of the public key credentials that were listed in + // allowCredentials. + + // NON-NORMATIVE Prior Step: Verify that the allowCredentials for the session are owned by the user provided + userCredentials := user.WebAuthnCredentials() + var credentialFound bool + if len(session.AllowedCredentialIDs) > 0 { + var credentialsOwned bool + for _, allowedCredentialID := range session.AllowedCredentialIDs { + for _, userCredential := range userCredentials { + if bytes.Equal(userCredential.ID, allowedCredentialID) { + credentialsOwned = true + break + } + credentialsOwned = false + } + } + if !credentialsOwned { + return nil, protocol.ErrBadRequest.WithDetails("User does not own all credentials from the allowedCredentialList") + } + for _, allowedCredentialID := range session.AllowedCredentialIDs { + if bytes.Equal(parsedResponse.RawID, allowedCredentialID) { + credentialFound = true + break + } + } + if !credentialFound { + return nil, protocol.ErrBadRequest.WithDetails("User does not own the credential returned") + } + } + + // Step 2. If credential.response.userHandle is present, verify that the user identified by this value is + // the owner of the public key credential identified by credential.id. + + // This is in part handled by our Step 1 + + userHandle := parsedResponse.Response.UserHandle + if userHandle != nil && len(userHandle) > 0 { + if !bytes.Equal(userHandle, user.WebAuthnID()) { + return nil, protocol.ErrBadRequest.WithDetails("userHandle and User ID do not match") + } + } + + // Step 3. Using credential’s id attribute (or the corresponding rawId, if base64url encoding is inappropriate + // for your use case), look up the corresponding credential public key. + var loginCredential Credential + for _, cred := range userCredentials { + if bytes.Equal(cred.ID, parsedResponse.RawID) { + loginCredential = cred + credentialFound = true + break + } + credentialFound = false + } + + if !credentialFound { + return nil, protocol.ErrBadRequest.WithDetails("Unable to find the credential for the returned credential ID") + } + + shouldVerifyUser := session.UserVerification == protocol.VerificationRequired + + rpID := webauthn.Config.RPID + rpOrigin := webauthn.Config.RPOrigin + + appID, err := parsedResponse.GetAppID(session.Extensions, loginCredential.AttestationType) + if err != nil { + return nil, err + } + + // Handle steps 4 through 16 + validError := parsedResponse.Verify(session.Challenge, rpID, rpOrigin, appID, shouldVerifyUser, loginCredential.PublicKey) + if validError != nil { + return nil, validError + } + + // Handle step 17 + loginCredential.Authenticator.UpdateCounter(parsedResponse.Response.AuthenticatorData.Counter) + + return &loginCredential, nil +} diff --git a/vendor/github.com/duo-labs/webauthn/webauthn/main.go b/vendor/github.com/duo-labs/webauthn/webauthn/main.go new file mode 100644 index 0000000000000..14de4b193601d --- /dev/null +++ b/vendor/github.com/duo-labs/webauthn/webauthn/main.go @@ -0,0 +1,71 @@ +package webauthn + +import ( + "fmt" + "net/url" + + "github.com/duo-labs/webauthn/protocol" +) + +var defaultTimeout = 60000 + +// WebAuthn is the primary interface of this package and contains the request handlers that should be called. +type WebAuthn struct { + Config *Config +} + +// The config values required for proper +type Config struct { + RPDisplayName string + RPID string + RPOrigin string + RPIcon string + // Defaults for generating options + AttestationPreference protocol.ConveyancePreference + AuthenticatorSelection protocol.AuthenticatorSelection + + Timeout int + Debug bool +} + +// Validate that the config flags in Config are properly set +func (config *Config) validate() error { + if len(config.RPDisplayName) == 0 { + return fmt.Errorf("Missing RPDisplayName") + } + + if len(config.RPID) == 0 { + return fmt.Errorf("Missing RPID") + } + + _, err := url.Parse(config.RPID) + if err != nil { + return fmt.Errorf("RPID not valid URI: %+v", err) + } + + if config.Timeout == 0 { + config.Timeout = defaultTimeout + } + + if config.RPOrigin == "" { + config.RPOrigin = config.RPID + } else { + u, err := url.Parse(config.RPOrigin) + if err != nil { + return fmt.Errorf("RPOrigin not valid URL: %+v", err) + } + config.RPOrigin = protocol.FullyQualifiedOrigin(u) + } + + return nil +} + +// Create a new WebAuthn object given the proper config flags +func New(config *Config) (*WebAuthn, error) { + if err := config.validate(); err != nil { + return nil, fmt.Errorf("Configuration error: %+v", err) + } + return &WebAuthn{ + config, + }, nil +} diff --git a/vendor/github.com/duo-labs/webauthn/webauthn/registration.go b/vendor/github.com/duo-labs/webauthn/webauthn/registration.go new file mode 100644 index 0000000000000..5feed6490399e --- /dev/null +++ b/vendor/github.com/duo-labs/webauthn/webauthn/registration.go @@ -0,0 +1,170 @@ +package webauthn + +import ( + "bytes" + "encoding/base64" + "net/http" + + "github.com/duo-labs/webauthn/protocol" + "github.com/duo-labs/webauthn/protocol/webauthncose" +) + +// BEGIN REGISTRATION +// These objects help us creat the CredentialCreationOptions +// that will be passed to the authenticator via the user client + +type RegistrationOption func(*protocol.PublicKeyCredentialCreationOptions) + +// Generate a new set of registration data to be sent to the client and authenticator. +func (webauthn *WebAuthn) BeginRegistration(user User, opts ...RegistrationOption) (*protocol.CredentialCreation, *SessionData, error) { + challenge, err := protocol.CreateChallenge() + if err != nil { + return nil, nil, err + } + + webAuthnUser := protocol.UserEntity{ + ID: user.WebAuthnID(), + DisplayName: user.WebAuthnDisplayName(), + CredentialEntity: protocol.CredentialEntity{ + Name: user.WebAuthnName(), + Icon: user.WebAuthnIcon(), + }, + } + + relyingParty := protocol.RelyingPartyEntity{ + ID: webauthn.Config.RPID, + CredentialEntity: protocol.CredentialEntity{ + Name: webauthn.Config.RPDisplayName, + Icon: webauthn.Config.RPIcon, + }, + } + + credentialParams := defaultRegistrationCredentialParameters() + + creationOptions := protocol.PublicKeyCredentialCreationOptions{ + Challenge: challenge, + RelyingParty: relyingParty, + User: webAuthnUser, + Parameters: credentialParams, + AuthenticatorSelection: webauthn.Config.AuthenticatorSelection, + Timeout: webauthn.Config.Timeout, + Attestation: webauthn.Config.AttestationPreference, + } + + for _, setter := range opts { + setter(&creationOptions) + } + + response := protocol.CredentialCreation{Response: creationOptions} + newSessionData := SessionData{ + Challenge: base64.RawURLEncoding.EncodeToString(challenge), + UserID: user.WebAuthnID(), + UserVerification: creationOptions.AuthenticatorSelection.UserVerification, + } + + if err != nil { + return nil, nil, protocol.ErrParsingData.WithDetails("Error packing session data") + } + + return &response, &newSessionData, nil +} + +// Provide non-default parameters regarding the authenticator to select. +func WithAuthenticatorSelection(authenticatorSelection protocol.AuthenticatorSelection) RegistrationOption { + return func(cco *protocol.PublicKeyCredentialCreationOptions) { + cco.AuthenticatorSelection = authenticatorSelection + } +} + +// Provide non-default parameters regarding credentials to exclude from retrieval. +func WithExclusions(excludeList []protocol.CredentialDescriptor) RegistrationOption { + return func(cco *protocol.PublicKeyCredentialCreationOptions) { + cco.CredentialExcludeList = excludeList + } +} + +// Provide non-default parameters regarding whether the authenticator should attest to the credential. +func WithConveyancePreference(preference protocol.ConveyancePreference) RegistrationOption { + return func(cco *protocol.PublicKeyCredentialCreationOptions) { + cco.Attestation = preference + } +} + +// Provide extension parameter to registration options +func WithExtensions(extension protocol.AuthenticationExtensions) RegistrationOption { + return func(cco *protocol.PublicKeyCredentialCreationOptions) { + cco.Extensions = extension + } +} + +// Take the response from the authenticator and client and verify the credential against the user's credentials and +// session data. +func (webauthn *WebAuthn) FinishRegistration(user User, session SessionData, response *http.Request) (*Credential, error) { + parsedResponse, err := protocol.ParseCredentialCreationResponse(response) + if err != nil { + return nil, err + } + + return webauthn.CreateCredential(user, session, parsedResponse) +} + +// CreateCredential verifies a parsed response against the user's credentials and session data. +func (webauthn *WebAuthn) CreateCredential(user User, session SessionData, parsedResponse *protocol.ParsedCredentialCreationData) (*Credential, error) { + if !bytes.Equal(user.WebAuthnID(), session.UserID) { + return nil, protocol.ErrBadRequest.WithDetails("ID mismatch for User and Session") + } + + shouldVerifyUser := session.UserVerification == protocol.VerificationRequired + + invalidErr := parsedResponse.Verify(session.Challenge, shouldVerifyUser, webauthn.Config.RPID, webauthn.Config.RPOrigin) + if invalidErr != nil { + return nil, invalidErr + } + + return MakeNewCredential(parsedResponse) +} + +func defaultRegistrationCredentialParameters() []protocol.CredentialParameter { + return []protocol.CredentialParameter{ + protocol.CredentialParameter{ + Type: protocol.PublicKeyCredentialType, + Algorithm: webauthncose.AlgES256, + }, + protocol.CredentialParameter{ + Type: protocol.PublicKeyCredentialType, + Algorithm: webauthncose.AlgES384, + }, + protocol.CredentialParameter{ + Type: protocol.PublicKeyCredentialType, + Algorithm: webauthncose.AlgES512, + }, + protocol.CredentialParameter{ + Type: protocol.PublicKeyCredentialType, + Algorithm: webauthncose.AlgRS256, + }, + protocol.CredentialParameter{ + Type: protocol.PublicKeyCredentialType, + Algorithm: webauthncose.AlgRS384, + }, + protocol.CredentialParameter{ + Type: protocol.PublicKeyCredentialType, + Algorithm: webauthncose.AlgRS512, + }, + protocol.CredentialParameter{ + Type: protocol.PublicKeyCredentialType, + Algorithm: webauthncose.AlgPS256, + }, + protocol.CredentialParameter{ + Type: protocol.PublicKeyCredentialType, + Algorithm: webauthncose.AlgPS384, + }, + protocol.CredentialParameter{ + Type: protocol.PublicKeyCredentialType, + Algorithm: webauthncose.AlgPS512, + }, + protocol.CredentialParameter{ + Type: protocol.PublicKeyCredentialType, + Algorithm: webauthncose.AlgEdDSA, + }, + } +} diff --git a/vendor/github.com/duo-labs/webauthn/webauthn/session.go b/vendor/github.com/duo-labs/webauthn/webauthn/session.go new file mode 100644 index 0000000000000..d6c5643680811 --- /dev/null +++ b/vendor/github.com/duo-labs/webauthn/webauthn/session.go @@ -0,0 +1,13 @@ +package webauthn + +import "github.com/duo-labs/webauthn/protocol" + +// SessionData is the data that should be stored by the Relying Party for +// the duration of the web authentication ceremony +type SessionData struct { + Challenge string `json:"challenge"` + UserID []byte `json:"user_id"` + AllowedCredentialIDs [][]byte `json:"allowed_credentials,omitempty"` + UserVerification protocol.UserVerificationRequirement `json:"userVerification"` + Extensions protocol.AuthenticationExtensions `json:"extensions,omitempty"` +} diff --git a/vendor/github.com/duo-labs/webauthn/webauthn/user.go b/vendor/github.com/duo-labs/webauthn/webauthn/user.go new file mode 100644 index 0000000000000..44045cdcb884f --- /dev/null +++ b/vendor/github.com/duo-labs/webauthn/webauthn/user.go @@ -0,0 +1,42 @@ +package webauthn + +// User is built to interface with the Relying Party's User entry and +// elaborate the fields and methods needed for WebAuthn +type User interface { + // User ID according to the Relying Party + WebAuthnID() []byte + // User Name according to the Relying Party + WebAuthnName() string + // Display Name of the user + WebAuthnDisplayName() string + // User's icon url + WebAuthnIcon() string + // Credentials owned by the user + WebAuthnCredentials() []Credential +} + +type defaultUser struct { + id []byte +} + +var _ User = (*defaultUser)(nil) + +func (user *defaultUser) WebAuthnID() []byte { + return user.id +} + +func (user *defaultUser) WebAuthnName() string { + return "newUser" +} + +func (user *defaultUser) WebAuthnDisplayName() string { + return "New User" +} + +func (user *defaultUser) WebAuthnIcon() string { + return "https://pics.com/avatar.png" +} + +func (user *defaultUser) WebAuthnCredentials() []Credential { + return []Credential{} +} diff --git a/vendor/github.com/fxamacker/cbor/v2/.gitignore b/vendor/github.com/fxamacker/cbor/v2/.gitignore new file mode 100644 index 0000000000000..f1c181ec9c5c9 --- /dev/null +++ b/vendor/github.com/fxamacker/cbor/v2/.gitignore @@ -0,0 +1,12 @@ +# Binaries for programs and plugins +*.exe +*.exe~ +*.dll +*.so +*.dylib + +# Test binary, build with `go test -c` +*.test + +# Output of the go coverage tool, specifically when used with LiteIDE +*.out diff --git a/vendor/github.com/fxamacker/cbor/v2/.golangci.yml b/vendor/github.com/fxamacker/cbor/v2/.golangci.yml new file mode 100644 index 0000000000000..04480426495ed --- /dev/null +++ b/vendor/github.com/fxamacker/cbor/v2/.golangci.yml @@ -0,0 +1,86 @@ +# Do not delete linter settings. Linters like gocritic can be enabled on the command line. + +linters-settings: + dupl: + threshold: 100 + funlen: + lines: 100 + statements: 50 + goconst: + min-len: 2 + min-occurrences: 3 + gocritic: + enabled-tags: + - diagnostic + - experimental + - opinionated + - performance + - style + disabled-checks: + - dupImport # https://github.com/go-critic/go-critic/issues/845 + - ifElseChain + - octalLiteral + - paramTypeCombine + - whyNoLint + - wrapperFunc + gofmt: + simplify: false + goimports: + local-prefixes: github.com/fxamacker/cbor + golint: + min-confidence: 0 + govet: + check-shadowing: true + lll: + line-length: 140 + maligned: + suggest-new: true + misspell: + locale: US + +linters: + disable-all: true + enable: + - deadcode + - errcheck + - goconst + - gocyclo + - gofmt + - goimports + - golint + - gosec + - govet + - ineffassign + - maligned + - misspell + - staticcheck + - structcheck + - typecheck + - unconvert + - unused + - varcheck + + +issues: + # max-issues-per-linter default is 50. Set to 0 to disable limit. + max-issues-per-linter: 0 + # max-same-issues default is 3. Set to 0 to disable limit. + max-same-issues: 0 + # Excluding configuration per-path, per-linter, per-text and per-source + exclude-rules: + - path: _test\.go + linters: + - goconst + - dupl + - gomnd + - lll + - path: doc\.go + linters: + - goimports + - gomnd + - lll + +# golangci.com configuration +# https://github.com/golangci/golangci/wiki/Configuration +service: + golangci-lint-version: 1.23.x # use the fixed version to not introduce new linters unexpectedly diff --git a/vendor/github.com/fxamacker/cbor/v2/CBOR_BENCHMARKS.md b/vendor/github.com/fxamacker/cbor/v2/CBOR_BENCHMARKS.md new file mode 100644 index 0000000000000..d4ea18990cd27 --- /dev/null +++ b/vendor/github.com/fxamacker/cbor/v2/CBOR_BENCHMARKS.md @@ -0,0 +1,264 @@ +# CBOR Benchmarks for fxamacker/cbor + +See [bench_test.go](bench_test.go). + +Benchmarks on Feb. 22, 2020 with cbor v2.2.0: +* [Go builtin types](#go-builtin-types) +* [Go structs](#go-structs) +* [Go structs with "keyasint" struct tag](#go-structs-with-keyasint-struct-tag) +* [Go structs with "toarray" struct tag](#go-structs-with-toarray-struct-tag) +* [COSE data](#cose-data) +* [CWT claims data](#cwt-claims-data) +* [SenML data](#SenML-data) + +## Go builtin types + +Benchmarks use data representing the following values: + +* Boolean: `true` +* Positive integer: `18446744073709551615` +* Negative integer: `-1000` +* Float: `-4.1` +* Byte string: `h'0102030405060708090a0b0c0d0e0f101112131415161718191a'` +* Text string: `"The quick brown fox jumps over the lazy dog"` +* Array: `[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26]` +* Map: `{"a": "A", "b": "B", "c": "C", "d": "D", "e": "E", "f": "F", "g": "G", "h": "H", "i": "I", "j": "J", "l": "L", "m": "M", "n": "N"}}` + +Decoding Benchmark | Time | Memory | Allocs +--- | ---: | ---: | ---: +BenchmarkUnmarshal/CBOR_bool_to_Go_interface_{}-2 | 110 ns/op | 16 B/op | 1 allocs/op +BenchmarkUnmarshal/CBOR_bool_to_Go_bool-2 | 99.3 ns/op | 1 B/op | 1 allocs/op +BenchmarkUnmarshal/CBOR_positive_int_to_Go_interface_{}-2 | 135 ns/op | 24 B/op | 2 allocs/op +BenchmarkUnmarshal/CBOR_positive_int_to_Go_uint64-2 | 116 ns/op | 8 B/op | 1 allocs/op +BenchmarkUnmarshal/CBOR_negative_int_to_Go_interface_{}-2 | 133 ns/op | 24 B/op | 2 allocs/op +BenchmarkUnmarshal/CBOR_negative_int_to_Go_int64-2 | 113 ns/op | 8 B/op | 1 allocs/op +BenchmarkUnmarshal/CBOR_float_to_Go_interface_{}-2 | 137 ns/op | 24 B/op | 2 allocs/op +BenchmarkUnmarshal/CBOR_float_to_Go_float64-2 | 115 ns/op | 8 B/op | 1 allocs/op +BenchmarkUnmarshal/CBOR_bytes_to_Go_interface_{}-2 | 179 ns/op | 80 B/op | 3 allocs/op +BenchmarkUnmarshal/CBOR_bytes_to_Go_[]uint8-2 | 194 ns/op | 64 B/op | 2 allocs/op +BenchmarkUnmarshal/CBOR_text_to_Go_interface_{}-2 | 209 ns/op | 80 B/op | 3 allocs/op +BenchmarkUnmarshal/CBOR_text_to_Go_string-2 | 193 ns/op | 64 B/op | 2 allocs/op +BenchmarkUnmarshal/CBOR_array_to_Go_interface_{}-2 |1068 ns/op | 672 B/op | 29 allocs/op +BenchmarkUnmarshal/CBOR_array_to_Go_[]int-2 | 1073 ns/op | 272 B/op | 3 allocs/op +BenchmarkUnmarshal/CBOR_map_to_Go_interface_{}-2 | 2926 ns/op | 1420 B/op | 30 allocs/op +BenchmarkUnmarshal/CBOR_map_to_Go_map[string]interface_{}-2 | 3755 ns/op | 965 B/op | 19 allocs/op +BenchmarkUnmarshal/CBOR_map_to_Go_map[string]string-2 | 2586 ns/op | 740 B/op | 5 allocs/op + +Encoding Benchmark | Time | Memory | Allocs +--- | ---: | ---: | ---: +BenchmarkMarshal/Go_bool_to_CBOR_bool-2 | 86.1 ns/op | 1 B/op | 1 allocs/op +BenchmarkMarshal/Go_uint64_to_CBOR_positive_int-2 | 97.0 ns/op | 16 B/op | 1 allocs/op +BenchmarkMarshal/Go_int64_to_CBOR_negative_int-2 | 90.3 ns/op | 3 B/op | 1 allocs/op +BenchmarkMarshal/Go_float64_to_CBOR_float-2 | 97.9 ns/op | 16 B/op | 1 allocs/op +BenchmarkMarshal/Go_[]uint8_to_CBOR_bytes-2 | 121 ns/op | 32 B/op | 1 allocs/op +BenchmarkMarshal/Go_string_to_CBOR_text-2 | 115 ns/op | 48 B/op | 1 allocs/op +BenchmarkMarshal/Go_[]int_to_CBOR_array-2 | 529 ns/op | 32 B/op | 1 allocs/op +BenchmarkMarshal/Go_map[string]string_to_CBOR_map-2 | 2115 ns/op | 576 B/op | 28 allocs/op + +## Go structs + +Benchmarks use struct and map[string]interface{} representing the following value: + +``` +{ + "T": true, + "Ui": uint(18446744073709551615), + "I": -1000, + "F": -4.1, + "B": []byte{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26}, + "S": "The quick brown fox jumps over the lazy dog", + "Slci": []int{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26}, + "Mss": map[string]string{"a": "A", "b": "B", "c": "C", "d": "D", "e": "E", "f": "F", "g": "G", "h": "H", "i": "I", "j": "J", "l": "L", "m": "M", "n": "N"}, +} +``` + +Decoding Benchmark | Time | Memory | Allocs +--- | ---: | ---: | ---: +BenchmarkUnmarshal/CBOR_map_to_Go_map[string]interface{}-2 | 6221 ns/op | 2621 B/op | 73 allocs/op +BenchmarkUnmarshal/CBOR_map_to_Go_struct-2 | 4458 ns/op | 1172 B/op | 10 allocs/op + +Encoding Benchmark | Time | Memory | Allocs +--- | ---: | ---: | ---: +BenchmarkMarshal/Go_map[string]interface{}_to_CBOR_map-2 | 4441 ns/op | 1072 B/op | 45 allocs/op +BenchmarkMarshal/Go_struct_to_CBOR_map-2 | 2866 ns/op | 720 B/op | 28 allocs/op + +## Go structs with "keyasint" struct tag + +Benchmarks use struct (with keyasint struct tag) and map[int]interface{} representing the following value: + +``` +{ + 1: true, + 2: uint(18446744073709551615), + 3: -1000, + 4: -4.1, + 5: []byte{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26}, + 6: "The quick brown fox jumps over the lazy dog", + 7: []int{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26}, + 8: map[string]string{"a": "A", "b": "B", "c": "C", "d": "D", "e": "E", "f": "F", "g": "G", "h": "H", "i": "I", "j": "J", "l": "L", "m": "M", "n": "N"}, +} +``` + +Struct type with keyasint struct tag is used to handle CBOR map with integer keys. + +``` +type T struct { + T bool `cbor:"1,keyasint"` + Ui uint `cbor:"2,keyasint"` + I int `cbor:"3,keyasint"` + F float64 `cbor:"4,keyasint"` + B []byte `cbor:"5,keyasint"` + S string `cbor:"6,keyasint"` + Slci []int `cbor:"7,keyasint"` + Mss map[string]string `cbor:"8,keyasint"` +} +``` + +Decoding Benchmark | Time | Memory | Allocs +--- | ---: | ---: | ---: +BenchmarkUnmarshal/CBOR_map_to_Go_map[int]interface{}-2| 6030 ns/op | 2517 B/op | 70 allocs/op +BenchmarkUnmarshal/CBOR_map_to_Go_struct_keyasint-2 | 4332 ns/op | 1173 B/op | 10 allocs/op + +Encoding Benchmark | Time | Memory | Allocs +--- | ---: | ---: | ---: +BenchmarkMarshal/Go_map[int]interface{}_to_CBOR_map-2 | 4348 ns/op | 992 B/op | 45 allocs/op +BenchmarkMarshal/Go_struct_keyasint_to_CBOR_map-2 | 2847 ns/op | 704 B/op | 28 allocs/op + +## Go structs with "toarray" struct tag + +Benchmarks use struct (with toarray struct tag) and []interface{} representing the following value: + +``` +[ + true, + uint(18446744073709551615), + -1000, + -4.1, + []byte{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26}, + "The quick brown fox jumps over the lazy dog", + []int{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26}, + map[string]string{"a": "A", "b": "B", "c": "C", "d": "D", "e": "E", "f": "F", "g": "G", "h": "H", "i": "I", "j": "J", "l": "L", "m": "M", "n": "N"} +] +``` + +Struct type with toarray struct tag is used to handle CBOR array. + +``` +type T struct { + _ struct{} `cbor:",toarray"` + T bool + Ui uint + I int + F float64 + B []byte + S string + Slci []int + Mss map[string]string +} +``` + +Decoding Benchmark | Time | Memory | Allocs +--- | ---: | ---: | ---: +BenchmarkUnmarshal/CBOR_array_to_Go_[]interface{}-2 | 4863 ns/op | 2404 B/op | 67 allocs/op +BenchmarkUnmarshal/CBOR_array_to_Go_struct_toarray-2 | 4173 ns/op | 1164 B/op | 9 allocs/op + +Encoding Benchmark | Time | Memory | Allocs +--- | ---: | ---: | ---: +BenchmarkMarshal/Go_[]interface{}_to_CBOR_map-2 | 3240 ns/op | 704 B/op | 28 allocs/op +BenchmarkMarshal/Go_struct_toarray_to_CBOR_array-2 | 2823 ns/op | 704 B/op | 28 allocs/op + +## COSE data + +Benchmarks use COSE data from https://tools.ietf.org/html/rfc8392#appendix-A section A.2 + +``` +// 128-Bit Symmetric COSE_Key +{ + / k / -1: h'231f4c4d4d3051fdc2ec0a3851d5b383' + / kty / 1: 4 / Symmetric /, + / kid / 2: h'53796d6d6574726963313238' / 'Symmetric128' /, + / alg / 3: 10 / AES-CCM-16-64-128 / +} +// 256-Bit Symmetric COSE_Key +{ + / k / -1: h'403697de87af64611c1d32a05dab0fe1fcb715a86ab435f1 + ec99192d79569388' + / kty / 1: 4 / Symmetric /, + / kid / 4: h'53796d6d6574726963323536' / 'Symmetric256' /, + / alg / 3: 4 / HMAC 256/64 / +} +// ECDSA 256-Bit COSE Key +{ + / d / -4: h'6c1382765aec5358f117733d281c1c7bdc39884d04a45a1e + 6c67c858bc206c19', + / y / -3: h'60f7f1a780d8a783bfb7a2dd6b2796e8128dbbcef9d3d168 + db9529971a36e7b9', + / x / -2: h'143329cce7868e416927599cf65a34f3ce2ffda55a7eca69 + ed8919a394d42f0f', + / crv / -1: 1 / P-256 /, + / kty / 1: 2 / EC2 /, + / kid / 2: h'4173796d6d657472696345434453413 + 23536' / 'AsymmetricECDSA256' /, + / alg / 3: -7 / ECDSA 256 / +} +``` + +Decoding Benchmark | Time | Memory | Allocs +--- | ---: | ---: | ---: +BenchmarkUnmarshalCOSE/128-Bit_Symmetric_Key-2 | 562 ns/op | 240 B/op | 4 allocs/op +BenchmarkUnmarshalCOSE/256-Bit_Symmetric_Key-2 | 568 ns/op | 256 B/op | 4 allocs/op +BenchmarkUnmarshalCOSE/ECDSA_P256_256-Bit_Key-2 | 968 ns/op | 360 B/op | 7 allocs/op + +Encoding Benchmark | Time | Memory | Allocs +--- | ---: | ---: | ---: +BenchmarkMarshalCOSE/128-Bit_Symmetric_Key-2 | 523 ns/op | 224 B/op | 2 allocs/op +BenchmarkMarshalCOSE/256-Bit_Symmetric_Key-2 | 521 ns/op | 240 B/op | 2 allocs/op +BenchmarkMarshalCOSE/ECDSA_P256_256-Bit_Key-2 | 668 ns/op | 320 B/op | 2 allocs/op + +## CWT claims data + +Benchmarks use CTW claims data from https://tools.ietf.org/html/rfc8392#appendix-A section A.1 + +``` +{ + / iss / 1: "coap://as.example.com", + / sub / 2: "erikw", + / aud / 3: "coap://light.example.com", + / exp / 4: 1444064944, + / nbf / 5: 1443944944, + / iat / 6: 1443944944, + / cti / 7: h'0b71' +} +``` + +Decoding Benchmark | Time | Memory | Allocs +--- | ---: | ---: | ---: +BenchmarkUnmarshalCWTClaims-2 | 765 ns/op | 176 B/op | 6 allocs/op + +Encoding Benchmark | Time | Memory | Allocs +--- | ---: | ---: | ---: +BenchmarkMarshalCWTClaims-2 | 451 ns/op | 176 B/op | 2 allocs/op + +## SenML data + +Benchmarks use SenML data from https://tools.ietf.org/html/rfc8428#section-6 + +``` +[ + {-2: "urn:dev:ow:10e2073a0108006:", -3: 1276020076.001, -4: "A", -1: 5, 0: "voltage", 1: "V", 2: 120.1}, + {0: "current", 6: -5, 2: 1.2}, + {0: "current", 6: -4, 2: 1.3}, + {0: "current", 6: -3, 2: 1.4}, + {0: "current", 6: -2, 2: 1.5}, + {0: "current", 6: -1, 2: 1.6}, + {0: "current", 6: 0, 2: 1.7} +] +``` + +Decoding Benchmark | Time | Memory | Allocs +--- | ---: | ---: | ---: +BenchmarkUnmarshalSenML-2 | 3106 ns/op | 1544 B/op | 18 allocs/op + +Encoding Benchmark | Time | Memory | Allocs +--- | ---: | ---: | ---: +BenchmarkMarshalSenML-2 | 2976 ns/op | 272 B/op | 2 allocs/op diff --git a/vendor/github.com/fxamacker/cbor/v2/CBOR_GOLANG.md b/vendor/github.com/fxamacker/cbor/v2/CBOR_GOLANG.md new file mode 100644 index 0000000000000..c9360ca70dabd --- /dev/null +++ b/vendor/github.com/fxamacker/cbor/v2/CBOR_GOLANG.md @@ -0,0 +1,32 @@ +👉 [Comparisons](https://github.com/fxamacker/cbor#comparisons) • [Status](https://github.com/fxamacker/cbor#current-status) • [Design Goals](https://github.com/fxamacker/cbor#design-goals) • [Features](https://github.com/fxamacker/cbor#features) • [Standards](https://github.com/fxamacker/cbor#standards) • [Fuzzing](https://github.com/fxamacker/cbor#fuzzing-and-code-coverage) • [Usage](https://github.com/fxamacker/cbor#usage) • [Security Policy](https://github.com/fxamacker/cbor#security-policy) • [License](https://github.com/fxamacker/cbor#license) + +# CBOR +[CBOR](https://en.wikipedia.org/wiki/CBOR) is a data format designed to allow small code size and small message size. CBOR is defined in [RFC 7049 Concise Binary Object Representation](https://tools.ietf.org/html/rfc7049), an [IETF](http://ietf.org/) Internet Standards Document. + +CBOR is also designed to be stable for decades, be extensible without need for version negotiation, and not require a schema. + +While JSON uses text, CBOR uses binary. CDDL can be used to express CBOR (and JSON) in an easy and unambiguous way. CDDL is defined in (RFC 8610 Concise Data Definition Language). + +## CBOR in Golang (Go) +[Golang](https://golang.org/) is a nickname for the Go programming language. Go is specified in [The Go Programming Language Specification](https://golang.org/ref/spec). + +__[fxamacker/cbor](https://github.com/fxamacker/cbor)__ is a library (written in Go) that encodes and decodes CBOR. The API design of fxamacker/cbor is based on Go's [`encoding/json`](https://golang.org/pkg/encoding/json/). The design and reliability of fxamacker/cbor makes it ideal for encoding and decoding COSE. + +## COSE +COSE is a protocol using CBOR for basic security services. COSE is defined in ([RFC 8152 CBOR Object Signing and Encryption](https://tools.ietf.org/html/rfc8152)). + +COSE describes how to create and process signatures, message authentication codes, and encryption using CBOR for serialization. COSE specification also describes how to represent cryptographic keys using CBOR. COSE is used by WebAuthn. + +## CWT +CBOR Web Token (CWT) is defined in [RFC 8392](http://tools.ietf.org/html/rfc8392). CWT is based on COSE and was derived in part from JSON Web Token (JWT). CWT is a compact way to securely represent claims to be transferred between two parties. + +## WebAuthn +[WebAuthn](https://en.wikipedia.org/wiki/WebAuthn) (Web Authentication) is a web standard for authenticating users to web-based apps and services. It's a core component of FIDO2, the successor of FIDO U2F legacy protocol. + +__[fxamacker/webauthn](https://github.com/fxamacker/webauthn)__ is a library (written in Go) that performs server-side authentication for clients using FIDO2 keys, legacy FIDO U2F keys, tpm, and etc. + +Copyright (c) Faye Amacker and contributors. + +
+ +👉 [Comparisons](https://github.com/fxamacker/cbor#comparisons) • [Status](https://github.com/fxamacker/cbor#current-status) • [Design Goals](https://github.com/fxamacker/cbor#design-goals) • [Features](https://github.com/fxamacker/cbor#features) • [Standards](https://github.com/fxamacker/cbor#standards) • [Fuzzing](https://github.com/fxamacker/cbor#fuzzing-and-code-coverage) • [Usage](https://github.com/fxamacker/cbor#usage) • [Security Policy](https://github.com/fxamacker/cbor#security-policy) • [License](https://github.com/fxamacker/cbor#license) diff --git a/vendor/github.com/fxamacker/cbor/v2/CODE_OF_CONDUCT.md b/vendor/github.com/fxamacker/cbor/v2/CODE_OF_CONDUCT.md new file mode 100644 index 0000000000000..bc1f077baa7ae --- /dev/null +++ b/vendor/github.com/fxamacker/cbor/v2/CODE_OF_CONDUCT.md @@ -0,0 +1,76 @@ +# Contributor Covenant Code of Conduct + +## Our Pledge + +In the interest of fostering an open and welcoming environment, we as +contributors and maintainers pledge to making participation in our project and +our community a harassment-free experience for everyone, regardless of age, body +size, disability, ethnicity, sex characteristics, gender identity and expression, +level of experience, education, socio-economic status, nationality, personal +appearance, race, religion, or sexual identity and orientation. + +## Our Standards + +Examples of behavior that contributes to creating a positive environment +include: + +* Using welcoming and inclusive language +* Being respectful of differing viewpoints and experiences +* Gracefully accepting constructive criticism +* Focusing on what is best for the community +* Showing empathy towards other community members + +Examples of unacceptable behavior by participants include: + +* The use of sexualized language or imagery and unwelcome sexual attention or + advances +* Trolling, insulting/derogatory comments, and personal or political attacks +* Public or private harassment +* Publishing others' private information, such as a physical or electronic + address, without explicit permission +* Other conduct which could reasonably be considered inappropriate in a + professional setting + +## Our Responsibilities + +Project maintainers are responsible for clarifying the standards of acceptable +behavior and are expected to take appropriate and fair corrective action in +response to any instances of unacceptable behavior. + +Project maintainers have the right and responsibility to remove, edit, or +reject comments, commits, code, wiki edits, issues, and other contributions +that are not aligned to this Code of Conduct, or to ban temporarily or +permanently any contributor for other behaviors that they deem inappropriate, +threatening, offensive, or harmful. + +## Scope + +This Code of Conduct applies both within project spaces and in public spaces +when an individual is representing the project or its community. Examples of +representing a project or community include using an official project e-mail +address, posting via an official social media account, or acting as an appointed +representative at an online or offline event. Representation of a project may be +further defined and clarified by project maintainers. + +## Enforcement + +Instances of abusive, harassing, or otherwise unacceptable behavior may be +reported by contacting the project team at faye.github@gmail.com. All +complaints will be reviewed and investigated and will result in a response that +is deemed necessary and appropriate to the circumstances. The project team is +obligated to maintain confidentiality with regard to the reporter of an incident. +Further details of specific enforcement policies may be posted separately. + +Project maintainers who do not follow or enforce the Code of Conduct in good +faith may face temporary or permanent repercussions as determined by other +members of the project's leadership. + +## Attribution + +This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4, +available at https://www.contributor-covenant.org/version/1/4/code-of-conduct.html + +[homepage]: https://www.contributor-covenant.org + +For answers to common questions about this code of conduct, see +https://www.contributor-covenant.org/faq diff --git a/vendor/github.com/fxamacker/cbor/v2/CONTRIBUTING.md b/vendor/github.com/fxamacker/cbor/v2/CONTRIBUTING.md new file mode 100644 index 0000000000000..1a2321c5d15aa --- /dev/null +++ b/vendor/github.com/fxamacker/cbor/v2/CONTRIBUTING.md @@ -0,0 +1,47 @@ +# How to contribute + +This project started because I needed an easy, small, and crash-proof CBOR library for my [WebAuthn (FIDO2) server library](https://github.com/fxamacker/webauthn). I believe this was the first and still only standalone CBOR library (in Go) that is fuzz tested as of November 10, 2019. + +To my surprise, Stefan Tatschner (rumpelsepp) submitted the first 2 issues when I didn't expect this project to be noticed. So I decided to make it more full-featured for others by announcing releases and asking for feedback. Even this document exists because Montgomery Edwards⁴⁴⁸ (x448) opened [issue #22](https://github.com/fxamacker/cbor/issues/22). In other words, you can contribute by opening an issue that helps the project improve. Especially in the early stages. + +When I announced v1.2 on Go Forum, Jakob Borg (calmh) responded with a thumbs up and encouragement. Another project of equal priority needed my time and Jakob's kind words tipped the scale for me to work on this one (speedups for [milestone v1.3](https://github.com/fxamacker/cbor/issues?q=is%3Aopen+is%3Aissue+milestone%3Av1.3.0).) So words of appreciation or encouragement is nice way to contribute to open source projects. + +Another way is by using this library in your project. It can lead to features that benefit both projects, which is what happened when oasislabs/oasis-core switched to this CBOR libary -- thanks Yawning Angel (yawning) for requesting BinaryMarshaler/BinaryUnmarshaler and Jernej Kos (kostco) for requesting RawMessage! + +If you'd like to contribute code or send CBOR data, please read on (it can save you time!) + +## Private reports +Usually, all issues are tracked publicly on [GitHub](https://github.com/fxamacker/cbor/issues). + +To report security vulnerabilities, please email faye.github@gmail.com and allow time for the problem to be resolved before disclosing it to the public. For more info, see [Security Policy](https://github.com/fxamacker/cbor#security-policy). + +Please do not send data that might contain personally identifiable information, even if you think you have permission. That type of support requires payment and a contract where I'm indemnified, held harmless, and defended for any data you send to me. + +## Prerequisites to pull requests +Please [create an issue](https://github.com/fxamacker/cbor/issues/new/choose), if one doesn't already exist, and describe your concern. You'll need a [GitHub account](https://github.com/signup/free) to do this. + +If you submit a pull request without creating an issue and getting a response, you risk having your work unused because the bugfix or feature was already done by others and being reviewed before reaching Github. + +## Describe your issue +Clearly describe the issue: +* If it's a bug, please provide: **version of this library** and **Go** (`go version`), **unmodified error message**, and describe **how to reproduce it**. Also state **what you expected to happen** instead of the error. +* If you propose a change or addition, try to give an example how the improved code could look like or how to use it. +* If you found a compilation error, please confirm you're using a supported version of Go. If you are, then provide the output of `go version` first, followed by the complete error message. + +## Please don't +Please don't send data containing personally identifiable information, even if you think you have permission. That type of support requires payment and a contract where I'm indemnified, held harmless, and defended for any data you send to me. + +Please don't send CBOR data larger than 512 bytes. If you want to send crash-producing CBOR data > 512 bytes, please get my permission before sending it to me. + +## Wanted +* Opening issues that are helpful to the project +* Using this library in your project and letting me know +* Sending well-formed CBOR data (<= 512 bytes) that causes crashes (none found yet). +* Sending malformed CBOR data (<= 512 bytes) that causes crashes (none found yet, but bad actors are better than me at breaking things). +* Sending tests or data for unit tests that increase code coverage (currently at 97.8% for v1.2.) +* Pull requests with small changes that are well-documented and easily understandable. +* Sponsors, donations, bounties, subscriptions: I'd like to run uninterrupted fuzzing between releases on a server with dedicated CPUs (after v1.3 or v1.4.) + +## Credits +This guide used nlohmann/json contribution guidelines for inspiration as suggested in issue #22. + diff --git a/vendor/github.com/fxamacker/cbor/v2/LICENSE b/vendor/github.com/fxamacker/cbor/v2/LICENSE new file mode 100644 index 0000000000000..8d9b736a4888f --- /dev/null +++ b/vendor/github.com/fxamacker/cbor/v2/LICENSE @@ -0,0 +1,21 @@ +MIT License + +Copyright (c) 2019 - present Faye Amacker + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. diff --git a/vendor/github.com/fxamacker/cbor/v2/README.md b/vendor/github.com/fxamacker/cbor/v2/README.md new file mode 100644 index 0000000000000..09ac3351a079c --- /dev/null +++ b/vendor/github.com/fxamacker/cbor/v2/README.md @@ -0,0 +1,938 @@ +[![CBOR Library - Slideshow and Latest Docs.](https://github.com/fxamacker/images/raw/master/cbor/v2.2.0/cbor_slides.gif)](https://github.com/fxamacker/cbor/blob/master/README.md) + +# CBOR library in Go +[__`fxamacker/cbor`__](https://github.com/fxamacker/cbor) is a CBOR encoder & decoder in [Go](https://golang.org). It has a standard API, CBOR tags, options for duplicate map keys, float64→32→16, `toarray`, `keyasint`, etc. Each release passes 375+ tests and 250+ million execs fuzzing. + +[![](https://github.com/fxamacker/cbor/workflows/ci/badge.svg)](https://github.com/fxamacker/cbor/actions?query=workflow%3Aci) +[![](https://github.com/fxamacker/cbor/workflows/cover%20%E2%89%A598%25/badge.svg)](https://github.com/fxamacker/cbor/actions?query=workflow%3A%22cover+%E2%89%A598%25%22) +[![](https://github.com/fxamacker/cbor/workflows/linters/badge.svg)](https://github.com/fxamacker/cbor/actions?query=workflow%3Alinters) +[![Go Report Card](https://goreportcard.com/badge/github.com/fxamacker/cbor)](https://goreportcard.com/report/github.com/fxamacker/cbor) +[![Release](https://img.shields.io/github/release/fxamacker/cbor.svg?style=flat-square)](https://github.com/fxamacker/cbor/releases) +[![License](http://img.shields.io/badge/license-mit-blue.svg?style=flat-square)](https://raw.githubusercontent.com/fxamacker/cbor/master/LICENSE) + +__What is CBOR__? [CBOR](CBOR_GOLANG.md) ([RFC 7049](https://tools.ietf.org/html/rfc7049)) is a binary data format inspired by JSON and MessagePack. CBOR is used in [IETF](https://www.ietf.org) Internet Standards such as COSE ([RFC 8152](https://tools.ietf.org/html/rfc8152)) and CWT ([RFC 8392 CBOR Web Token](https://tools.ietf.org/html/rfc8392)). WebAuthn also uses CBOR. + +__`fxamacker/cbor`__ is safe and fast. It safely handles malformed CBOR data: + +![alt text](https://github.com/fxamacker/images/raw/master/cbor/v2.2.0/cbor_security_table.svg?sanitize=1 "CBOR Security Comparison") + +__`fxamacker/cbor`__ is fast when using CBOR data with Go structs: + +![alt text](https://github.com/fxamacker/images/raw/master/cbor/v2.2.0/cbor_speed_table.svg?sanitize=1 "CBOR Speed Comparison") + +Benchmarks used data from [RFC 8392 Appendix A.1](https://tools.ietf.org/html/rfc8392#appendix-A.1) and default options for each CBOR library. + +__`fxamacker/cbor`__ produces smaller binaries. All builds of cisco/senml had MessagePack feature removed: + +![alt text](https://github.com/fxamacker/images/raw/master/cbor/v2.2.0/cbor_size_comparison.png "CBOR library and program size comparison chart") + +
+ +__Standard API__: functions with signatures identical to [`encoding/json`](https://golang.org/pkg/encoding/json/) include: +`Marshal`, `Unmarshal`, `NewEncoder`, `NewDecoder`, `encoder.Encode`, and `decoder.Decode`. + +__Standard interfaces__ allow custom encoding or decoding: +`BinaryMarshaler`, `BinaryUnmarshaler`, `Marshaler`, and `Unmarshaler`. + +__Struct tags__ like __`toarray`__ & __`keyasint`__ translate Go struct fields to CBOR array elements, etc. + +
+ +[![CBOR API](https://github.com/fxamacker/images/raw/master/cbor/v2.2.0/cbor_api_struct_tags.png)](#usage) + +
+ +__`fxamacker/cbor`__ is a full-featured CBOR encoder and decoder. Support for CBOR includes: + +![alt text](https://github.com/fxamacker/images/raw/master/cbor/v2.2.0/cbor_features.svg?sanitize=1 "CBOR Features") + +
+ +⚓ [__Installation__](#installation) • [__System Requirements__](#system-requirements) • [__Quick Start Guide__](#quick-start) + +
+ +__Why this CBOR library?__ It doesn't crash and it has well-balanced qualities: small, fast, safe and easy. It also has a standard API, CBOR tags (built-in and user-defined), float64→32→16, and duplicate map key options. + +* __Standard API__. Codec functions with signatures identical to [`encoding/json`](https://golang.org/pkg/encoding/json/) include: +`Marshal`, `Unmarshal`, `NewEncoder`, `NewDecoder`, `encoder.Encode`, and `decoder.Decode`. + +* __Customizable__. Standard interfaces are provided to allow user-implemented encoding or decoding: +`BinaryMarshaler`, `BinaryUnmarshaler`, `Marshaler`, and `Unmarshaler`. + +* __Small apps__. Same programs are 4-9 MB smaller by switching to this library. No code gen and the only imported pkg is [x448/float16](https://github.com/x448/float16) which is maintained by the same team as this library. + +* __Small data__. The `toarray`, `keyasint`, and `omitempty` struct tags shrink size of Go structs encoded to CBOR. Integers encode to smallest form that fits. Floats can shrink from float64 -> float32 -> float16 if values fit. + +* __Fast__. v1.3 became faster than a well-known library that uses `unsafe` optimizations and code gen. Faster libraries will always exist, but speed is only one factor. This library doesn't use `unsafe` optimizations or code gen. + +* __Safe__ and reliable. It prevents crashes on malicious CBOR data by using extensive tests, coverage-guided fuzzing, data validation, and avoiding Go's [`unsafe`](https://golang.org/pkg/unsafe/) pkg. Decoder settings include: `MaxNestedLevels`, `MaxArrayElements`, `MaxMapPairs`, and `IndefLength`. + +* __Easy__ and saves time. Simple (no param) functions return preset `EncOptions` so you don't have to know the differences between Canonical CBOR and CTAP2 Canonical CBOR to use those standards. + +💡 Struct tags are a Go language feature. CBOR tags relate to a CBOR data type (major type 6). + +Struct tags for CBOR and JSON like `` `cbor:"name,omitempty"` `` and `` `json:"name,omitempty"` `` are supported so you can leverage your existing code. If both `cbor:` and `json:` tags exist then it will use `cbor:`. + +New struct tags like __`keyasint`__ and __`toarray`__ make compact CBOR data such as COSE, CWT, and SenML easier to use. + +⚓ [Quick Start](#quick-start) • [Status](#current-status) • [Design Goals](#design-goals) • [Features](#features) • [Standards](#standards) • [API](#api) • [Usage](#usage) • [Fuzzing](#fuzzing-and-code-coverage) • [Security Policy](#security-policy) • [License](#license) + +## Installation + +👉 If Go modules aren't used, delete or modify example_test.go +from `"github.com/fxamacker/cbor/v2"` to `"github.com/fxamacker/cbor"` + +Using Go modules is recommended. +``` +$ GO111MODULE=on go get github.com/fxamacker/cbor/v2 +``` + +```go +import ( + "github.com/fxamacker/cbor/v2" // imports as package "cbor" +) +``` + +[Released versions](https://github.com/fxamacker/cbor/releases) benefit from longer fuzz tests. + +## System Requirements + +Using Go modules is recommended but not required. + +* Go 1.12 (or newer). +* amd64, arm64, ppc64le and s390x. Other architectures may also work but they are not tested as frequently. + +If Go modules feature isn't used, please see [Installation](#installation) about deleting or modifying example_test.go. + +## Quick Start +🛡️ Use Go's `io.LimitReader` to limit size when decoding very large or indefinite size data. + +Functions with identical signatures to encoding/json include: +`Marshal`, `Unmarshal`, `NewEncoder`, `NewDecoder`, `encoder.Encode`, `decoder.Decode`. + +__Default Mode__ + +If default options are acceptable, package level functions can be used for encoding and decoding. + +```go +b, err := cbor.Marshal(v) // encode v to []byte b + +err := cbor.Unmarshal(b, &v) // decode []byte b to v + +encoder := cbor.NewEncoder(w) // create encoder with io.Writer w + +decoder := cbor.NewDecoder(r) // create decoder with io.Reader r +``` + +__Modes__ + +If you need to use options or CBOR tags, then you'll want to create a mode. + +"Mode" means defined way of encoding or decoding -- it links the standard API to your CBOR options and CBOR tags. This way, you don't pass around options and the API remains identical to `encoding/json`. + +EncMode and DecMode are interfaces created from EncOptions or DecOptions structs. +For example, `em, err := cbor.EncOptions{...}.EncMode()` or `em, err := cbor.CanonicalEncOptions().EncMode()`. + +EncMode and DecMode use immutable options so their behavior won't accidentally change at runtime. Modes are reusable, safe for concurrent use, and allow fast parallelism. + +__Creating and Using Encoding Modes__ + +💡 Avoid using init(). For best performance, reuse EncMode and DecMode after creating them. + +Most apps will probably create one EncMode and DecMode before init(). However, there's no limit and each can use different options. + +```go +// Create EncOptions using either struct literal or a function. +opts := cbor.CanonicalEncOptions() + +// If needed, modify opts. For example: opts.Time = cbor.TimeUnix + +// Create reusable EncMode interface with immutable options, safe for concurrent use. +em, err := opts.EncMode() + +// Use EncMode like encoding/json, with same function signatures. +b, err := em.Marshal(v) // encode v to []byte b + +encoder := em.NewEncoder(w) // create encoder with io.Writer w +err := encoder.Encode(v) // encode v to io.Writer w +``` + +__Creating Modes With CBOR Tags__ + +A TagSet is used to specify CBOR tags. + +```go +em, err := opts.EncMode() // no tags +em, err := opts.EncModeWithTags(ts) // immutable tags +em, err := opts.EncModeWithSharedTags(ts) // mutable shared tags +``` + +TagSet and all modes using it are safe for concurrent use. Equivalent API is available for DecMode. + +__Predefined Encoding Options__ + +```go +func CanonicalEncOptions() EncOptions {} // settings for RFC 7049 Canonical CBOR +func CTAP2EncOptions() EncOptions {} // settings for FIDO2 CTAP2 Canonical CBOR +func CoreDetEncOptions() EncOptions {} // settings from a draft RFC (subject to change) +func PreferredUnsortedEncOptions() EncOptions {} // settings from a draft RFC (subject to change) +``` + +The empty curly braces prevent a syntax highlighting bug on GitHub, please ignore them. + +__Struct Tags (keyasint, toarray, omitempty)__ + +The `keyasint`, `toarray`, and `omitempty` struct tags make it easy to use compact CBOR message formats. Internet standards often use CBOR arrays and CBOR maps with int keys to save space. + +__More Info About API, Options, and Usage__ + +Options are listed in the Features section: [Encoding Options](#encoding-options) and [Decoding Options](#decoding-options) + +For more details about each setting, see [Options](#options) section. + +For additional API and usage examples, see [API](#api) and [Usage](#usage) sections. + +
+ +⚓ [Install](#installation) • [Status](#current-status) • [Design Goals](#design-goals) • [Features](#features) • [Standards](#standards) • [API](#api) • [Usage](#usage) • [Fuzzing](#fuzzing-and-code-coverage) • [Security Policy](#security-policy) • [License](#license) + +## Current Status +Latest version is v2.x, which has: + +* __Stable API__ – Six codec function signatures will never change. No breaking API changes for other funcs in same major version. And these two functions are subject to change until the draft RFC is approved by IETF (est. in 2020): + * CoreDetEncOptions() is subject to change because it uses draft standard. + * PreferredUnsortedEncOptions() is subject to change because it uses draft standard. +* __Passed all tests__ – v2.x passed all 375+ tests on amd64, arm64, ppc64le and s390x with linux. +* __Passed fuzzing__ – v2.2 passed 459+ million execs in coverage-guided fuzzing on Feb 24, 2020 (still fuzzing.) + +__Why v2.x?__: + +v1 required breaking API changes to support new features like CBOR tags, detection of duplicate map keys, and having more functions with identical signatures to `encoding/json`. + +v2.1 is roughly 26% faster and uses 57% fewer allocs than v1.x when decoding COSE and CWT using default options. + +__Recent Activity__: + +* Release v2.1 (Feb. 17, 2020) + - [x] CBOR tags (major type 6) for encoding and decoding. + - [x] Decoding options for duplicate map key detection: `DupMapKeyQuiet` (default) and `DupMapKeyEnforcedAPF` + - [x] Decoding optimizations. Structs using keyasint tag (like COSE and CWT) is + 24-28% faster and 53-61% fewer allocs than both v1.5 and v2.0.1. + +* Release v2.2 (Feb. 24, 2020) + - [x] CBOR BSTR <--> Go byte array (byte slices were already supported) + - [x] Add more encoding and decoding options (MaxNestedLevels, MaxArrayElements, MaxMapKeyPairs, TagsMd, etc.) + - [x] Fix potential error when decoding shorter CBOR indef length array to Go array (slice wasn't affected). This bug affects all prior versions of 1.x and 2.x. + +
+ +⚓ [Install](#installation) • [Status](#current-status) • [Design Goals](#design-goals) • [Features](#features) • [Standards](#standards) • [API](#api) • [Usage](#usage) • [Fuzzing](#fuzzing-and-code-coverage) • [Security Policy](#security-policy) • [License](#license) + +## Design Goals +This library is designed to be a generic CBOR encoder and decoder. It was initially created for a [WebAuthn (FIDO2) server library](https://github.com/fxamacker/webauthn), because existing CBOR libraries (in Go) didn't meet certain criteria in 2019. + +This library is designed to be: + +* __Easy__ – API is like `encoding/json` plus `keyasint` and `toarray` struct tags. +* __Small__ – Programs in cisco/senml are 4 MB smaller by switching to this library. In extreme cases programs can be smaller by 9+ MB. No code gen and the only imported pkg is x448/float16 which is maintained by the same team. +* __Safe and reliable__ – No `unsafe` pkg, coverage >95%, coverage-guided fuzzing, and data validation to avoid crashes on malformed or malicious data. Decoder settings include: `MaxNestedLevels`, `MaxArrayElements`, `MaxMapPairs`, and `IndefLength`. + +Avoiding `unsafe` package has benefits. The `unsafe` package [warns](https://golang.org/pkg/unsafe/): + +> Packages that import unsafe may be non-portable and are not protected by the Go 1 compatibility guidelines. + +All releases prioritize reliability to avoid crashes on decoding malformed CBOR data. See [Fuzzing and Coverage](#fuzzing-and-code-coverage). + +Competing factors are balanced: + +* __Speed__ vs __safety__ vs __size__ – to keep size small, avoid code generation. For safety, validate data and avoid Go's `unsafe` pkg. For speed, use safe optimizations such as caching struct metadata. This library is faster than a well-known library that uses `unsafe` and code gen. +* __Standards compliance__ vs __size__ – Supports CBOR RFC 7049 with minor [limitations](#limitations). To limit bloat, CBOR tags are supported but not all tags are built-in. The API allows users to add tags that aren't built-in. The API also allows custom encoding and decoding of user-defined Go types. + +__Click to expand topic:__ + +
+ Supported CBOR Features (Highlights)

+ +![alt text](https://github.com/fxamacker/images/raw/master/cbor/v2.2.0/cbor_features.svg?sanitize=1 "CBOR Features") + +

+ +
+ v2.0 API Design

+ +v2.0 decoupled options from CBOR encoding & decoding functions: + +* More encoding/decoding function signatures are identical to encoding/json. +* More function signatures can remain stable forever. +* More flexibility for evolving internal data types, optimizations, and concurrency. +* Features like CBOR tags can be added without more breaking API changes. +* Options to handle duplicate map keys can be added without more breaking API changes. + +

+ +Features not in Go's standard library are usually not added. However, the __`toarray`__ struct tag in __ugorji/go__ was too useful to ignore. It was added in v1.3 when a project mentioned they were using it with CBOR to save disk space. + +
+ +⚓ [Install](#installation) • [Status](#current-status) • [Design Goals](#design-goals) • [Features](#features) • [Standards](#standards) • [API](#api) • [Usage](#usage) • [Fuzzing](#fuzzing-and-code-coverage) • [Security Policy](#security-policy) • [License](#license) + +## Features + +### Standard API + +Many function signatures are identical to encoding/json, including: +`Marshal`, `Unmarshal`, `NewEncoder`, `NewDecoder`, `encoder.Encode`, `decoder.Decode`. + +`RawMessage` can be used to delay CBOR decoding or precompute CBOR encoding, like `encoding/json`. + +Standard interfaces allow user-defined types to have custom CBOR encoding and decoding. They include: +`BinaryMarshaler`, `BinaryUnmarshaler`, `Marshaler`, and `Unmarshaler`. + +`Marshaler` and `Unmarshaler` interfaces are satisfied by `MarshalCBOR` and `UnmarshalCBOR` functions using same params and return types as Go's MarshalJSON and UnmarshalJSON. + +### Struct Tags + +Support "cbor" and "json" keys in Go's struct tags. If both are specified, then "cbor" is used. + +* `toarray` struct tag allows named struct fields for elements of CBOR arrays. +* `keyasint` struct tag allows named struct fields for elements of CBOR maps with int keys. +* `omitempty` struct tag excludes empty field values from being encoded. + +See [Usage](#usage). + +### CBOR Tags (New in v2.1) + +There are three broad categories of CBOR tags: + +* __Default built-in CBOR tags__ currently include tag numbers 0 and 1 (Time). Additional default built-in tags in future releases may include tag numbers 2 and 3 (Bignum). + +* __Optional built-in CBOR tags__ may be provided in the future via build flags or optional package(s) to help reduce bloat. + +* __User-defined CBOR tags__ are easy by using TagSet to associate tag numbers to user-defined Go types. + +### Preferred Serialization + +Preferred serialization encodes integers and floating-point values using the fewest bytes possible. + +* Integers are always encoded using the fewest bytes possible. +* Floating-point values can optionally encode from float64->float32->float16 when values fit. + +### Compact Data Size + +The combination of preferred serialization and struct tags (toarray, keyasint, omitempty) allows very compact data size. + +### Predefined Encoding Options + +Easy-to-use functions (no params) return preset EncOptions struct: +`CanonicalEncOptions`, `CTAP2EncOptions`, `CoreDetEncOptions`, `PreferredUnsortedEncOptions` + +### Encoding Options + +Integers always encode to the shortest form that preserves value. By default, time values are encoded without tags. + +Encoding of other data types and map key sort order are determined by encoder options. + +| Encoding Option | Available Settings (defaults in bold, aliases in italics) | +| --------------- | --------------------------------------------------------- | +| EncOptions.Sort | __`SortNone`__, `SortLengthFirst`, `SortBytewiseLexical`, _`SortCanonical`_, _`SortCTAP2`_, _`SortCoreDeterministic`_ | +| EncOptions.Time | __`TimeUnix`__, `TimeUnixMicro`, `TimeUnixDynamic`, `TimeRFC3339`, `TimeRFC3339Nano` | +| EncOptions.TimeTag | __`EncTagNone`__, `EncTagRequired` | +| EncOptions.ShortestFloat | __`ShortestFloatNone`__, `ShortestFloat16` | +| EncOptions.InfConvert | __`InfConvertFloat16`__, `InfConvertNone` | +| EncOptions.NaNConvert | __`NaNConvert7e00`__, `NaNConvertNone`, `NaNConvertQuiet`, `NaNConvertPreserveSignal` | +| EncOptions.IndefLength | __`IndefLengthAllowed`__, `IndefLengthForbidden` | +| EncOptions.TagsMd | __`TagsAllowed`__, `TagsForbidden` | + +See [Options](#options) section for details about each setting. + +### Decoding Options + +| Decoding Option | Available Settings (defaults in bold, aliases in italics) | +| --------------- | --------------------------------------------------------- | +| DecOptions.TimeTag | __`DecTagIgnored`__, `DecTagOptional`, `DecTagRequired` | +| DecOptions.DupMapKey | __`DupMapKeyQuiet`__, `DupMapKeyEnforcedAPF` | +| DecOptions.IndefLength | __`IndefLengthAllowed`__, `IndefLengthForbidden` | +| DecOptions.TagsMd | __`TagsAllowed`__, `TagsForbidden` | +| DecOptions.MaxNestedLevels | __32__, can be set to [4, 256] | +| DecOptions.MaxArrayElements | __131072__, can be set to [16, 134217728] | +| DecOptions.MaxMapPairs | __131072__, can be set to [16, 134217728] | + +See [Options](#options) section for details about each setting. + +### Additional Features + +* Decoder always checks for invalid UTF-8 string errors. +* Decoder always decodes in-place to slices, maps, and structs. +* Decoder tries case-sensitive first and falls back to case-insensitive field name match when decoding to structs. +* Both encoder and decoder support indefinite length CBOR data (["streaming"](https://tools.ietf.org/html/rfc7049#section-2.2)). +* Both encoder and decoder correctly handles nil slice, map, pointer, and interface values. + +
+ +⚓ [Install](#installation) • [Status](#current-status) • [Design Goals](#design-goals) • [Features](#features) • [Standards](#standards) • [API](#api) • [Usage](#usage) • [Fuzzing](#fuzzing-and-code-coverage) • [Security Policy](#security-policy) • [License](#license) + +## Standards +This library is a full-featured generic CBOR [(RFC 7049)](https://tools.ietf.org/html/rfc7049) encoder and decoder. Notable CBOR features include: + +![alt text](https://github.com/fxamacker/images/raw/master/cbor/v2.2.0/cbor_features.svg?sanitize=1 "CBOR Features") + +See the Features section for list of [Encoding Options](#encoding-options) and [Decoding Options](#decoding-options). + +Known limitations are noted in the [Limitations section](#limitations). + +Go nil values for slices, maps, pointers, etc. are encoded as CBOR null. Empty slices, maps, etc. are encoded as empty CBOR arrays and maps. + +Decoder checks for all required well-formedness errors, including all "subkinds" of syntax errors and too little data. + +After well-formedness is verified, basic validity errors are handled as follows: + +* Invalid UTF-8 string: Decoder always checks and returns invalid UTF-8 string error. +* Duplicate keys in a map: Decoder has options to ignore or enforce rejection of duplicate map keys. + +When decoding well-formed CBOR arrays and maps, decoder saves the first error it encounters and continues with the next item. Options to handle this differently may be added in the future. + +See [Options](#options) section for detailed settings or [Features](#features) section for a summary of options. + +__Click to expand topic:__ + +
+ Duplicate Map Keys

+ +This library provides options for fast detection and rejection of duplicate map keys based on applying a Go-specific data model to CBOR's extended generic data model in order to determine duplicate vs distinct map keys. Detection relies on whether the CBOR map key would be a duplicate "key" when decoded and applied to the user-provided Go map or struct. + +`DupMapKeyQuiet` turns off detection of duplicate map keys. It tries to use a "keep fastest" method by choosing either "keep first" or "keep last" depending on the Go data type. + +`DupMapKeyEnforcedAPF` enforces detection and rejection of duplidate map keys. Decoding stops immediately and returns `DupMapKeyError` when the first duplicate key is detected. The error includes the duplicate map key and the index number. + +APF suffix means "Allow Partial Fill" so the destination map or struct can contain some decoded values at the time of error. It is the caller's responsibility to respond to the `DupMapKeyError` by discarding the partially filled result if that's required by their protocol. + +

+ +## Limitations + +If any of these limitations prevent you from using this library, please open an issue along with a link to your project. + +* CBOR negative int (type 1) that cannot fit into Go's int64 are not supported, such as RFC 7049 example -18446744073709551616. Decoding these values returns `cbor.UnmarshalTypeError` like Go's `encoding/json`. However, this may be resolved in a future release by adding support for `big.Int`. Until then, users can use the API for custom encoding and decoding. +* CBOR `Undefined` (0xf7) value decodes to Go's `nil` value. CBOR `Null` (0xf6) more closely matches Go's `nil`. +* CBOR map keys with data types not supported by Go for map keys are ignored and an error is returned after continuing to decode remaining items. +* When using io.Reader interface to read very large or indefinite length CBOR data, Go's `io.LimitReader` should be used to limit size. + +
+ +⚓ [Install](#installation) • [Status](#current-status) • [Design Goals](#design-goals) • [Features](#features) • [Standards](#standards) • [API](#api) • [Usage](#usage) • [Fuzzing](#fuzzing-and-code-coverage) • [Security Policy](#security-policy) • [License](#license) + +## API +Many function signatures are identical to Go's encoding/json, such as: +`Marshal`, `Unmarshal`, `NewEncoder`, `NewDecoder`, `encoder.Encode`, and `decoder.Decode`. + +Interfaces identical or comparable to Go's encoding, encoding/json, or encoding/gob include: +`Marshaler`, `Unmarshaler`, `BinaryMarshaler`, and `BinaryUnmarshaler`. + +Like `encoding/json`, `RawMessage` can be used to delay CBOR decoding or precompute CBOR encoding. + +"Mode" in this API means defined way of encoding or decoding -- it links the standard API to CBOR options and CBOR tags. + +EncMode and DecMode are interfaces created from EncOptions or DecOptions structs. +For example, `em, err := cbor.EncOptions{...}.EncMode()` or `em, err := cbor.CanonicalEncOptions().EncMode()`. + +EncMode and DecMode use immutable options so their behavior won't accidentally change at runtime. Modes are intended to be reused and are safe for concurrent use. + +__API for Default Mode__ + +If default options are acceptable, then you don't need to create EncMode or DecMode. + +```go +Marshal(v interface{}) ([]byte, error) +NewEncoder(w io.Writer) *Encoder + +Unmarshal(data []byte, v interface{}) error +NewDecoder(r io.Reader) *Decoder +``` + +__API for Creating & Using Encoding Modes__ + +```go +// EncMode interface uses immutable options and is safe for concurrent use. +type EncMode interface { + Marshal(v interface{}) ([]byte, error) + NewEncoder(w io.Writer) *Encoder + EncOptions() EncOptions // returns copy of options +} + +// EncOptions specifies encoding options. +type EncOptions struct { +... +} + +// EncMode returns an EncMode interface created from EncOptions. +func (opts EncOptions) EncMode() (EncMode, error) {} + +// EncModeWithTags returns EncMode with options and tags that are both immutable. +func (opts EncOptions) EncModeWithTags(tags TagSet) (EncMode, error) {} + +// EncModeWithSharedTags returns EncMode with immutable options and mutable shared tags. +func (opts EncOptions) EncModeWithSharedTags(tags TagSet) (EncMode, error) {} +``` + +The empty curly braces prevent a syntax highlighting bug, please ignore them. + +__API for Predefined Encoding Options__ + +```go +func CanonicalEncOptions() EncOptions {} // settings for RFC 7049 Canonical CBOR +func CTAP2EncOptions() EncOptions {} // settings for FIDO2 CTAP2 Canonical CBOR +func CoreDetEncOptions() EncOptions {} // settings from a draft RFC (subject to change) +func PreferredUnsortedEncOptions() EncOptions {} // settings from a draft RFC (subject to change) +``` + +__API for Creating & Using Decoding Modes__ + +```go +// DecMode interface uses immutable options and is safe for concurrent use. +type DecMode interface { + Unmarshal(data []byte, v interface{}) error + NewDecoder(r io.Reader) *Decoder + DecOptions() DecOptions // returns copy of options +} + +// DecOptions specifies decoding options. +type DecOptions struct { +... +} + +// DecMode returns a DecMode interface created from DecOptions. +func (opts DecOptions) DecMode() (DecMode, error) {} + +// DecModeWithTags returns DecMode with options and tags that are both immutable. +func (opts DecOptions) DecModeWithTags(tags TagSet) (DecMode, error) {} + +// DecModeWithSharedTags returns DecMode with immutable options and mutable shared tags. +func (opts DecOptions) DecModeWithSharedTags(tags TagSet) (DecMode, error) {} +``` + +The empty curly braces prevent a syntax highlighting bug, please ignore them. + +__API for Using CBOR Tags__ + +`TagSet` can be used to associate user-defined Go type(s) to tag number(s). It's also used to create EncMode or DecMode. For example, `em := EncOptions{...}.EncModeWithTags(ts)` or `em := EncOptions{...}.EncModeWithSharedTags(ts)`. This allows every standard API exported by em (like `Marshal` and `NewEncoder`) to use the specified tags automatically. + +`Tag` and `RawTag` can be used to encode/decode a tag number with a Go value, but `TagSet` is generally recommended. + +```go +type TagSet interface { + // Add adds given tag number(s), content type, and tag options to TagSet. + Add(opts TagOptions, contentType reflect.Type, num uint64, nestedNum ...uint64) error + + // Remove removes given tag content type from TagSet. + Remove(contentType reflect.Type) +} +``` + +`Tag` and `RawTag` types can also be used to encode/decode tag number with Go value. + +```go +type Tag struct { + Number uint64 + Content interface{} +} + +type RawTag struct { + Number uint64 + Content RawMessage +} +``` + +See [API docs (godoc.org)](https://godoc.org/github.com/fxamacker/cbor) for more details and more functions. See [Usage section](#usage) for usage and code examples. + +
+ +⚓ [Install](#installation) • [Status](#current-status) • [Design Goals](#design-goals) • [Features](#features) • [Standards](#standards) • [API](#api) • [Usage](#usage) • [Fuzzing](#fuzzing-and-code-coverage) • [Security Policy](#security-policy) • [License](#license) + +## Options + +Options for the decoding and encoding are listed here. + +### Decoding Options + +| DecOptions.TimeTag | Description | +| ------------------ | ----------- | +| DecTagIgnored (default) | Tag numbers are ignored (if present) for time values. | +| DecTagOptional | Tag numbers are only checked for validity if present for time values. | +| DecTagRequired | Tag numbers must be provided for time values except for CBOR Null and CBOR Undefined. | + +CBOR Null and CBOR Undefined are silently treated as Go's zero time instant. Go's `time` package provides `IsZero` function, which reports whether t represents the zero time instant, January 1, year 1, 00:00:00 UTC. + +| DecOptions.DupMapKey | Description | +| -------------------- | ----------- | +| DupMapKeyQuiet (default) | turns off detection of duplicate map keys. It uses a "keep fastest" method by choosing either "keep first" or "keep last" depending on the Go data type. | +| DupMapKeyEnforcedAPF | enforces detection and rejection of duplidate map keys. Decoding stops immediately and returns `DupMapKeyError` when the first duplicate key is detected. The error includes the duplicate map key and the index number. | + +`DupMapKeyEnforcedAPF` uses "Allow Partial Fill" so the destination map or struct can contain some decoded values at the time of error. Users can respond to the `DupMapKeyError` by discarding the partially filled result if that's required by their protocol. + +| DecOptions.IndefLength | Description | +| ---------------------- | ----------- | +|IndefLengthAllowed (default) | allow indefinite length data | +|IndefLengthForbidden | forbid indefinite length data | + +| DecOptions.TagsMd | Description | +| ----------------- | ----------- | +|TagsAllowed (default) | allow CBOR tags (major type 6) | +|TagsForbidden | forbid CBOR tags (major type 6) | + +| DecOptions.MaxNestedLevels | Description | +| -------------------------- | ----------- | +| 32 (default) | allowed setting is [4, 256] | + +| DecOptions.MaxArrayElements | Description | +| --------------------------- | ----------- | +| 131072 (default) | allowed setting is [16, 134217728] | + +| DecOptions.MaxMapPairs | Description | +| ---------------------- | ----------- | +| 131072 (default) | allowed setting is [16, 134217728] | + +### Encoding Options + +__Integers always encode to the shortest form that preserves value__. Encoding of other data types and map key sort order are determined by encoding options. + +These functions are provided to create and return a modifiable EncOptions struct with predefined settings. + +| Predefined EncOptions | Description | +| --------------------- | ----------- | +| CanonicalEncOptions() |[Canonical CBOR (RFC 7049 Section 3.9)](https://tools.ietf.org/html/rfc7049#section-3.9). | +| CTAP2EncOptions() |[CTAP2 Canonical CBOR (FIDO2 CTAP2)](https://fidoalliance.org/specs/fido-v2.0-id-20180227/fido-client-to-authenticator-protocol-v2.0-id-20180227.html#ctap2-canonical-cbor-encoding-form). | +| PreferredUnsortedEncOptions() |Unsorted, encode float64->float32->float16 when values fit, NaN values encoded as float16 0x7e00. | +| CoreDetEncOptions() |PreferredUnsortedEncOptions() + map keys are sorted bytewise lexicographic. | + +🌱 CoreDetEncOptions() and PreferredUnsortedEncOptions() are subject to change until the draft RFC they used is approved by IETF. + +| EncOptions.Sort | Description | +| --------------- | ----------- | +| SortNone (default) |No sorting for map keys. | +| SortLengthFirst |Length-first map key ordering. | +| SortBytewiseLexical |Bytewise lexicographic map key ordering | +| SortCanonical |(alias) Same as SortLengthFirst [(RFC 7049 Section 3.9)](https://tools.ietf.org/html/rfc7049#section-3.9) | +| SortCTAP2 |(alias) Same as SortBytewiseLexical [(CTAP2 Canonical CBOR)](https://fidoalliance.org/specs/fido-v2.0-id-20180227/fido-client-to-authenticator-protocol-v2.0-id-20180227.html#ctap2-canonical-cbor-encoding-form). | +| SortCoreDeterministic |(alias) Same as SortBytewiseLexical. | + +| EncOptions.Time | Description | +| --------------- | ----------- | +| TimeUnix (default) | (seconds) Encode as integer. | +| TimeUnixMicro | (microseconds) Encode as floating-point. ShortestFloat option determines size. | +| TimeUnixDynamic | (seconds or microseconds) Encode as integer if time doesn't have fractional seconds, otherwise encode as floating-point rounded to microseconds. | +| TimeRFC3339 | (seconds) Encode as RFC 3339 formatted string. | +| TimeRFC3339Nano | (nanoseconds) Encode as RFC3339 formatted string. | + +| EncOptions.TimeTag | Description | +| ------------------ | ----------- | +| EncTagNone (default) | Tag number will not be encoded for time values. | +| EncTagRequired | Tag number (0 or 1) will be encoded unless time value is undefined/zero-instant. | + +__Undefined Time Values__ + +By default, undefined (zero instant) time values will encode as CBOR Null without tag number for both EncTagNone and EncTagRequired. Although CBOR Undefined might be technically more correct for EncTagRequired, CBOR Undefined might not be supported by other generic decoders and it isn't supported by JSON. + +Go's `time` package provides `IsZero` function, which reports whether t represents the zero time instant, January 1, year 1, 00:00:00 UTC. + +__Floating-Point Options__ + +Encoder has 3 types of options for floating-point data: ShortestFloatMode, InfConvertMode, and NaNConvertMode. + +| EncOptions.ShortestFloat | Description | +| ------------------------ | ----------- | +| ShortestFloatNone (default) | No size conversion. Encode float32 and float64 to CBOR floating-point of same bit-size. | +| ShortestFloat16 | Encode float64 -> float32 -> float16 ([IEEE 754 binary16](https://en.wikipedia.org/wiki/Half-precision_floating-point_format)) when values fit. | + +Conversions for infinity and NaN use InfConvert and NaNConvert settings. + +| EncOptions.InfConvert | Description | +| --------------------- | ----------- | +| InfConvertFloat16 (default) | Convert +- infinity to float16 since they always preserve value (recommended) | +| InfConvertNone |Don't convert +- infinity to other representations -- used by CTAP2 Canonical CBOR | + +| EncOptions.NaNConvert | Description | +| --------------------- | ----------- | +| NaNConvert7e00 (default) | Encode to 0xf97e00 (CBOR float16 = 0x7e00) -- used by RFC 7049 Canonical CBOR. | +| NaNConvertNone | Don't convert NaN to other representations -- used by CTAP2 Canonical CBOR. | +| NaNConvertQuiet | Force quiet bit = 1 and use shortest form that preserves NaN payload. | +| NaNConvertPreserveSignal | Convert to smallest form that preserves value (quit bit unmodified and NaN payload preserved). | + +| EncOptions.IndefLength | Description | +| ---------------------- | ----------- | +|IndefLengthAllowed (default) | allow indefinite length data | +|IndefLengthForbidden | forbid indefinite length data | + +| EncOptions.TagsMd | Description | +| ----------------- | ----------- | +|TagsAllowed (default) | allow CBOR tags (major type 6) | +|TagsForbidden | forbid CBOR tags (major type 6) | + +
+ +⚓ [Install](#installation) • [Status](#current-status) • [Design Goals](#design-goals) • [Features](#features) • [Standards](#standards) • [API](#api) • [Usage](#usage) • [Fuzzing](#fuzzing-and-code-coverage) • [Security Policy](#security-policy) • [License](#license) + +## Usage +🛡️ Use Go's `io.LimitReader` to limit size when decoding very large or indefinite size data. + +Functions with identical signatures to encoding/json include: +`Marshal`, `Unmarshal`, `NewEncoder`, `NewDecoder`, `encoder.Encode`, `decoder.Decode`. + +__Default Mode__ + +If default options are acceptable, package level functions can be used for encoding and decoding. + +```go +b, err := cbor.Marshal(v) // encode v to []byte b + +err := cbor.Unmarshal(b, &v) // decode []byte b to v + +encoder := cbor.NewEncoder(w) // create encoder with io.Writer w + +decoder := cbor.NewDecoder(r) // create decoder with io.Reader r +``` + +__Modes__ + +If you need to use options or CBOR tags, then you'll want to create a mode. + +"Mode" means defined way of encoding or decoding -- it links the standard API to your CBOR options and CBOR tags. This way, you don't pass around options and the API remains identical to `encoding/json`. + +EncMode and DecMode are interfaces created from EncOptions or DecOptions structs. +For example, `em, err := cbor.EncOptions{...}.EncMode()` or `em, err := cbor.CanonicalEncOptions().EncMode()`. + +EncMode and DecMode use immutable options so their behavior won't accidentally change at runtime. Modes are reusable, safe for concurrent use, and allow fast parallelism. + +__Creating and Using Encoding Modes__ + +EncMode is an interface ([API](#api)) created from EncOptions struct. EncMode uses immutable options after being created and is safe for concurrent use. For best performance, EncMode should be reused. + +```go +// Create EncOptions using either struct literal or a function. +opts := cbor.CanonicalEncOptions() + +// If needed, modify opts. For example: opts.Time = cbor.TimeUnix + +// Create reusable EncMode interface with immutable options, safe for concurrent use. +em, err := opts.EncMode() + +// Use EncMode like encoding/json, with same function signatures. +b, err := em.Marshal(v) // encode v to []byte b + +encoder := em.NewEncoder(w) // create encoder with io.Writer w +err := encoder.Encode(v) // encode v to io.Writer w +``` + +__Struct Tags (keyasint, toarray, omitempty)__ + +The `keyasint`, `toarray`, and `omitempty` struct tags make it easy to use compact CBOR message formats. Internet standards often use CBOR arrays and CBOR maps with int keys to save space. + +
+ +[![CBOR API](https://github.com/fxamacker/images/raw/master/cbor/v2.2.0/cbor_api_struct_tags.png)](#usage) + +
+ +__Decoding CWT (CBOR Web Token)__ using `keyasint` and `toarray` struct tags: + +```go +// Signed CWT is defined in RFC 8392 +type signedCWT struct { + _ struct{} `cbor:",toarray"` + Protected []byte + Unprotected coseHeader + Payload []byte + Signature []byte +} + +// Part of COSE header definition +type coseHeader struct { + Alg int `cbor:"1,keyasint,omitempty"` + Kid []byte `cbor:"4,keyasint,omitempty"` + IV []byte `cbor:"5,keyasint,omitempty"` +} + +// data is []byte containing signed CWT + +var v signedCWT +if err := cbor.Unmarshal(data, &v); err != nil { + return err +} +``` + +__Encoding CWT (CBOR Web Token)__ using `keyasint` and `toarray` struct tags: + +```go +// Use signedCWT struct defined in "Decoding CWT" example. + +var v signedCWT +... +if data, err := cbor.Marshal(v); err != nil { + return err +} +``` + +__Encoding and Decoding CWT (CBOR Web Token) with CBOR Tags__ + +```go +// Use signedCWT struct defined in "Decoding CWT" example. + +// Create TagSet (safe for concurrency). +tags := cbor.NewTagSet() +// Register tag COSE_Sign1 18 with signedCWT type. +tags.Add( + cbor.TagOptions{EncTag: cbor.EncTagRequired, DecTag: cbor.DecTagRequired}, + reflect.TypeOf(signedCWT{}), + 18) + +// Create DecMode with immutable tags. +dm, _ := cbor.DecOptions{}.DecModeWithTags(tags) + +// Unmarshal to signedCWT with tag support. +var v signedCWT +if err := dm.Unmarshal(data, &v); err != nil { + return err +} + +// Create EncMode with immutable tags. +em, _ := cbor.EncOptions{}.EncModeWithTags(tags) + +// Marshal signedCWT with tag number. +if data, err := cbor.Marshal(v); err != nil { + return err +} +``` + +For more examples, see [examples_test.go](example_test.go). + +
+ +⚓ [Install](#installation) • [Status](#current-status) • [Design Goals](#design-goals) • [Features](#features) • [Standards](#standards) • [API](#api) • [Usage](#usage) • [Fuzzing](#fuzzing-and-code-coverage) • [Security Policy](#security-policy) • [License](#license) + +## Comparisons + +Comparisons are between this newer library and a well-known library that had 1,000+ stars before this library was created. Default build settings for each library were used for all comparisons. + +__This library is safer__. Small malicious CBOR messages are rejected quickly before they exhaust system resources. + +![alt text](https://github.com/fxamacker/images/raw/master/cbor/v2.2.0/cbor_security_table.svg?sanitize=1 "CBOR Security Comparison") + +__This library is smaller__. Programs like senmlCat can be 4 MB smaller by switching to this library. Programs using more complex CBOR data types can be 9.2 MB smaller. + +![alt text](https://github.com/fxamacker/images/raw/master/cbor/v2.2.0/cbor_size_comparison.png "CBOR library and program size comparison chart") + +__This library is faster__ for encoding and decoding CBOR Web Token (CWT). However, speed is only one factor and it can vary depending on data types and sizes. Unlike the other library, this one doesn't use Go's ```unsafe``` package or code gen. + +![alt text](https://github.com/fxamacker/images/raw/master/cbor/v2.2.0/cbor_speed_comparison.png "CBOR library speed comparison chart") + +The resource intensive `codec.CborHandle` initialization (in the other library) was placed outside the benchmark loop to make sure their library wasn't penalized. + +__This library uses less memory__ for encoding and decoding CBOR Web Token (CWT) using test data from RFC 8392 A.1. + +![alt text](https://github.com/fxamacker/images/raw/master/cbor/v2.2.0/cbor_memory_table.svg?sanitize=1 "CBOR Speed Comparison") + +Doing your own comparisons is highly recommended. Use your most common message sizes and data types. + +
+ +⚓ [Install](#installation) • [Status](#current-status) • [Design Goals](#design-goals) • [Features](#features) • [Standards](#standards) • [API](#api) • [Usage](#usage) • [Fuzzing](#fuzzing-and-code-coverage) • [Security Policy](#security-policy) • [License](#license) + +## Benchmarks + +Go structs are faster than maps with string keys: + +* decoding into struct is >28% faster than decoding into map. +* encoding struct is >35% faster than encoding map. + +Go structs with `keyasint` struct tag are faster than maps with integer keys: + +* decoding into struct is >28% faster than decoding into map. +* encoding struct is >34% faster than encoding map. + +Go structs with `toarray` struct tag are faster than slice: + +* decoding into struct is >15% faster than decoding into slice. +* encoding struct is >12% faster than encoding slice. + +Doing your own benchmarks is highly recommended. Use your most common message sizes and data types. + +See [Benchmarks for fxamacker/cbor](CBOR_BENCHMARKS.md). + +## Fuzzing and Code Coverage + +__Over 375 tests__ must pass on 4 architectures before tagging a release. They include all RFC 7049 examples, bugs found by fuzzing, maliciously crafted CBOR data, and over 87 tests with malformed data. + +__Code coverage__ must not fall below 95% when tagging a release. Code coverage is 98.6% (`go test -cover`) for cbor v2.2 which is among the highest for libraries (in Go) of this type. + +__Coverage-guided fuzzing__ must pass 250+ million execs before tagging a release. Fuzzing uses [fxamacker/cbor-fuzz](https://github.com/fxamacker/cbor-fuzz). Default corpus has: + +* 2 files related to WebAuthn (FIDO U2F key). +* 3 files with custom struct. +* 9 files with [CWT examples (RFC 8392 Appendix A)](https://tools.ietf.org/html/rfc8392#appendix-A). +* 17 files with [COSE examples (RFC 8152 Appendix B & C)](https://github.com/cose-wg/Examples/tree/master/RFC8152). +* 81 files with [CBOR examples (RFC 7049 Appendix A) ](https://tools.ietf.org/html/rfc7049#appendix-A). It excludes 1 errata first reported in [issue #46](https://github.com/fxamacker/cbor/issues/46). + +Over 1,100 files (corpus) are used for fuzzing because it includes fuzz-generated corpus. + +To prevent excessive delays, fuzzing is not restarted for a release if changes are limited to docs and comments. + +
+ +⚓ [Install](#installation) • [Status](#current-status) • [Design Goals](#design-goals) • [Features](#features) • [Standards](#standards) • [API](#api) • [Usage](#usage) • [Fuzzing](#fuzzing-and-code-coverage) • [Security Policy](#security-policy) • [License](#license) + +## Versions and API Changes +This project uses [Semantic Versioning](https://semver.org), so the API is always backwards compatible unless the major version number changes. + +These functions have signatures identical to encoding/json and they will likely never change even after major new releases: `Marshal`, `Unmarshal`, `NewEncoder`, `NewDecoder`, `encoder.Encode`, and `decoder.Decode`. + +Newly added API documented as "subject to change" are excluded from SemVer. + +Newly added API in the master branch that has never been release tagged are excluded from SemVer. + +## Code of Conduct +This project has adopted the [Contributor Covenant Code of Conduct](CODE_OF_CONDUCT.md). Contact [faye.github@gmail.com](mailto:faye.github@gmail.com) with any questions or comments. + +## Contributing +Please refer to [How to Contribute](CONTRIBUTING.md). + +## Security Policy +Security fixes are provided for the latest released version. + +To report security vulnerabilities, please email [faye.github@gmail.com](mailto:faye.github@gmail.com) and allow time for the problem to be resolved before reporting it to the public. + +## Disclaimers +Phrases like "no crashes" or "doesn't crash" mean there are no known crash bugs in the latest version based on results of unit tests and coverage-guided fuzzing. It doesn't imply the software is 100% bug-free or 100% invulnerable to all known and unknown attacks. + +Please read the license for additional disclaimers and terms. + +## Special Thanks + +__Making this library better__ + +* Montgomery Edwards⁴⁴⁸ for [x448/float16](https://github.com/x448/float16), updating the docs, creating charts & slideshow, filing issues, nudging me to ask for feedback from users, helping with design of v2.0-v2.1 API, and general idea for DupMapKeyEnforcedAPF. +* Stefan Tatschner for using this library in [sep](https://git.sr.ht/~rumpelsepp/sep), being the 1st to discover my CBOR library, requesting time.Time in issue #1, and submitting this library in a [PR to cbor.io](https://github.com/cbor/cbor.github.io/pull/56) on Aug 12, 2019. +* Yawning Angel for using this library to [oasis-core](https://github.com/oasislabs/oasis-core), and requesting BinaryMarshaler in issue #5. +* Jernej Kos for requesting RawMessage in issue #11 and offering feedback on v2.1 API for CBOR tags. +* ZenGround0 for using this library in [go-filecoin](https://github.com/filecoin-project/go-filecoin), filing "toarray" bug in issue #129, and requesting +CBOR BSTR <--> Go array in #133. +* Keith Randall for [fixing Go bugs and providing workarounds](https://github.com/golang/go/issues/36400) so we don't have to wait for new versions of Go. + +__Help clarifying CBOR RFC 7049 or 7049bis__ + +* Carsten Bormann for RFC 7049 (CBOR), his fast confirmation to my RFC 7049 errata, approving my pull request to 7049bis, and his patience when I misread a line in 7049bis. +* Laurence Lundblade for his help on the IETF mailing list for 7049bis and for pointing out on a CBORbis issue that CBOR Undefined might be problematic translating to JSON. +* Jeffrey Yasskin for his help on the IETF mailing list for 7049bis. + +__Words of encouragement and support__ + +* Jakob Borg for his words of encouragement about this library at Go Forum. This is especially appreciated in the early stages when there's a lot of rough edges. + + +## License +Copyright © 2019-present [Faye Amacker](https://github.com/fxamacker). + +fxamacker/cbor is licensed under the MIT License. See [LICENSE](LICENSE) for the full license text. + +
+ +⚓ [Install](#installation) • [Status](#current-status) • [Design Goals](#design-goals) • [Features](#features) • [Standards](#standards) • [API](#api) • [Usage](#usage) • [Fuzzing](#fuzzing-and-code-coverage) • [Security Policy](#security-policy) • [License](#license) diff --git a/vendor/github.com/fxamacker/cbor/v2/cache.go b/vendor/github.com/fxamacker/cbor/v2/cache.go new file mode 100644 index 0000000000000..ace1669b266bd --- /dev/null +++ b/vendor/github.com/fxamacker/cbor/v2/cache.go @@ -0,0 +1,308 @@ +// Copyright (c) Faye Amacker. All rights reserved. +// Licensed under the MIT License. See LICENSE in the project root for license information. + +package cbor + +import ( + "bytes" + "errors" + "reflect" + "sort" + "strconv" + "strings" + "sync" +) + +var ( + decodingStructTypeCache sync.Map // map[reflect.Type]*decodingStructType + encodingStructTypeCache sync.Map // map[reflect.Type]*encodingStructType + encodeFuncCache sync.Map // map[reflect.Type]encodeFunc + typeInfoCache sync.Map // map[reflect.Type]*typeInfo +) + +type specialType int + +const ( + specialTypeNone specialType = iota + specialTypeUnmarshalerIface + specialTypeEmptyIface + specialTypeTag + specialTypeTime +) + +type typeInfo struct { + elemTypeInfo *typeInfo + keyTypeInfo *typeInfo + typ reflect.Type + kind reflect.Kind + nonPtrType reflect.Type + nonPtrKind reflect.Kind + spclType specialType +} + +func newTypeInfo(t reflect.Type) *typeInfo { + tInfo := typeInfo{typ: t, kind: t.Kind()} + + for t.Kind() == reflect.Ptr { + t = t.Elem() + } + + k := t.Kind() + + tInfo.nonPtrType = t + tInfo.nonPtrKind = k + + if k == reflect.Interface && t.NumMethod() == 0 { + tInfo.spclType = specialTypeEmptyIface + } else if t == typeTag { + tInfo.spclType = specialTypeTag + } else if t == typeTime { + tInfo.spclType = specialTypeTime + } else if reflect.PtrTo(t).Implements(typeUnmarshaler) { + tInfo.spclType = specialTypeUnmarshalerIface + } + + switch k { + case reflect.Array, reflect.Slice: + tInfo.elemTypeInfo = getTypeInfo(t.Elem()) + case reflect.Map: + tInfo.keyTypeInfo = getTypeInfo(t.Key()) + tInfo.elemTypeInfo = getTypeInfo(t.Elem()) + } + + return &tInfo +} + +type decodingStructType struct { + fields fields + err error + toArray bool +} + +func getDecodingStructType(t reflect.Type) *decodingStructType { + if v, _ := decodingStructTypeCache.Load(t); v != nil { + return v.(*decodingStructType) + } + + flds, structOptions := getFields(t) + + toArray := hasToArrayOption(structOptions) + + var err error + for i := 0; i < len(flds); i++ { + if flds[i].keyAsInt { + nameAsInt, numErr := strconv.Atoi(flds[i].name) + if numErr != nil { + err = errors.New("cbor: failed to parse field name \"" + flds[i].name + "\" to int (" + numErr.Error() + ")") + break + } + flds[i].nameAsInt = int64(nameAsInt) + } + + flds[i].typInfo = getTypeInfo(flds[i].typ) + } + + structType := &decodingStructType{fields: flds, err: err, toArray: toArray} + decodingStructTypeCache.Store(t, structType) + return structType +} + +type encodingStructType struct { + fields fields + bytewiseFields fields + lengthFirstFields fields + err error + toArray bool + omitEmpty bool + hasAnonymousField bool +} + +func (st *encodingStructType) getFields(em *encMode) fields { + if em.sort == SortNone { + return st.fields + } + if em.sort == SortLengthFirst { + return st.lengthFirstFields + } + return st.bytewiseFields +} + +type bytewiseFieldSorter struct { + fields fields +} + +func (x *bytewiseFieldSorter) Len() int { + return len(x.fields) +} + +func (x *bytewiseFieldSorter) Swap(i, j int) { + x.fields[i], x.fields[j] = x.fields[j], x.fields[i] +} + +func (x *bytewiseFieldSorter) Less(i, j int) bool { + return bytes.Compare(x.fields[i].cborName, x.fields[j].cborName) <= 0 +} + +type lengthFirstFieldSorter struct { + fields fields +} + +func (x *lengthFirstFieldSorter) Len() int { + return len(x.fields) +} + +func (x *lengthFirstFieldSorter) Swap(i, j int) { + x.fields[i], x.fields[j] = x.fields[j], x.fields[i] +} + +func (x *lengthFirstFieldSorter) Less(i, j int) bool { + if len(x.fields[i].cborName) != len(x.fields[j].cborName) { + return len(x.fields[i].cborName) < len(x.fields[j].cborName) + } + return bytes.Compare(x.fields[i].cborName, x.fields[j].cborName) <= 0 +} + +func getEncodingStructType(t reflect.Type) *encodingStructType { + if v, _ := encodingStructTypeCache.Load(t); v != nil { + return v.(*encodingStructType) + } + + flds, structOptions := getFields(t) + + if hasToArrayOption(structOptions) { + return getEncodingStructToArrayType(t, flds) + } + + var err error + var omitEmpty bool + var hasAnonymousField bool + var hasKeyAsInt bool + var hasKeyAsStr bool + e := getEncodeState() + for i := 0; i < len(flds); i++ { + // Get field's encodeFunc + flds[i].ef = getEncodeFunc(flds[i].typ) + if flds[i].ef == nil { + err = &UnsupportedTypeError{t} + break + } + + // Encode field name + if flds[i].keyAsInt { + nameAsInt, numErr := strconv.Atoi(flds[i].name) + if numErr != nil { + err = errors.New("cbor: failed to parse field name \"" + flds[i].name + "\" to int (" + numErr.Error() + ")") + break + } + flds[i].nameAsInt = int64(nameAsInt) + if nameAsInt >= 0 { + encodeHead(e, byte(cborTypePositiveInt), uint64(nameAsInt)) + } else { + n := nameAsInt*(-1) - 1 + encodeHead(e, byte(cborTypeNegativeInt), uint64(n)) + } + flds[i].cborName = make([]byte, e.Len()) + copy(flds[i].cborName, e.Bytes()) + e.Reset() + + hasKeyAsInt = true + } else { + encodeHead(e, byte(cborTypeTextString), uint64(len(flds[i].name))) + flds[i].cborName = make([]byte, e.Len()+len(flds[i].name)) + n := copy(flds[i].cborName, e.Bytes()) + copy(flds[i].cborName[n:], flds[i].name) + e.Reset() + + hasKeyAsStr = true + } + + // Check if field is from embedded struct + if len(flds[i].idx) > 1 { + hasAnonymousField = true + } + + // Check if field can be omitted when empty + if flds[i].omitEmpty { + omitEmpty = true + } + } + putEncodeState(e) + + if err != nil { + structType := &encodingStructType{err: err} + encodingStructTypeCache.Store(t, structType) + return structType + } + + // Sort fields by canonical order + bytewiseFields := make(fields, len(flds)) + copy(bytewiseFields, flds) + sort.Sort(&bytewiseFieldSorter{bytewiseFields}) + + lengthFirstFields := bytewiseFields + if hasKeyAsInt && hasKeyAsStr { + lengthFirstFields = make(fields, len(flds)) + copy(lengthFirstFields, flds) + sort.Sort(&lengthFirstFieldSorter{lengthFirstFields}) + } + + structType := &encodingStructType{ + fields: flds, + bytewiseFields: bytewiseFields, + lengthFirstFields: lengthFirstFields, + omitEmpty: omitEmpty, + hasAnonymousField: hasAnonymousField, + } + encodingStructTypeCache.Store(t, structType) + return structType +} + +func getEncodingStructToArrayType(t reflect.Type, flds fields) *encodingStructType { + var hasAnonymousField bool + for i := 0; i < len(flds); i++ { + // Get field's encodeFunc + flds[i].ef = getEncodeFunc(flds[i].typ) + if flds[i].ef == nil { + structType := &encodingStructType{err: &UnsupportedTypeError{t}} + encodingStructTypeCache.Store(t, structType) + return structType + } + + // Check if field is from embedded struct + if len(flds[i].idx) > 1 { + hasAnonymousField = true + } + } + + structType := &encodingStructType{ + fields: flds, + toArray: true, + hasAnonymousField: hasAnonymousField, + } + encodingStructTypeCache.Store(t, structType) + return structType +} + +func getEncodeFunc(t reflect.Type) encodeFunc { + if v, _ := encodeFuncCache.Load(t); v != nil { + return v.(encodeFunc) + } + f := getEncodeFuncInternal(t) + encodeFuncCache.Store(t, f) + return f +} + +func getTypeInfo(t reflect.Type) *typeInfo { + if v, _ := typeInfoCache.Load(t); v != nil { + return v.(*typeInfo) + } + tInfo := newTypeInfo(t) + typeInfoCache.Store(t, tInfo) + return tInfo +} + +func hasToArrayOption(tag string) bool { + s := ",toarray" + idx := strings.Index(tag, s) + return idx >= 0 && (len(tag) == idx+len(s) || tag[idx+len(s)] == ',') +} diff --git a/vendor/github.com/fxamacker/cbor/v2/decode.go b/vendor/github.com/fxamacker/cbor/v2/decode.go new file mode 100644 index 0000000000000..079e6821312a0 --- /dev/null +++ b/vendor/github.com/fxamacker/cbor/v2/decode.go @@ -0,0 +1,1642 @@ +// Copyright (c) Faye Amacker. All rights reserved. +// Licensed under the MIT License. See LICENSE in the project root for license information. + +package cbor + +import ( + "encoding" + "encoding/binary" + "errors" + "fmt" + "io" + "math" + "reflect" + "strconv" + "strings" + "time" + "unicode/utf8" + + "github.com/x448/float16" +) + +// Unmarshal parses the CBOR-encoded data and stores the result in the value +// pointed to by v using the default decoding options. If v is nil or not a +// pointer, Unmarshal returns an error. +// +// Unmarshal uses the inverse of the encodings that Marshal uses, allocating +// maps, slices, and pointers as necessary, with the following additional rules: +// +// To unmarshal CBOR into a pointer, Unmarshal first handles the case of the +// CBOR being the CBOR literal null. In that case, Unmarshal sets the pointer +// to nil. Otherwise, Unmarshal unmarshals the CBOR into the value pointed at +// by the pointer. If the pointer is nil, Unmarshal allocates a new value for +// it to point to. +// +// To unmarshal CBOR into an interface value, Unmarshal stores one of these in +// the interface value: +// +// bool, for CBOR booleans +// uint64, for CBOR positive integers +// int64, for CBOR negative integers +// float64, for CBOR floating points +// []byte, for CBOR byte strings +// string, for CBOR text strings +// []interface{}, for CBOR arrays +// map[interface{}]interface{}, for CBOR maps +// nil, for CBOR null +// +// To unmarshal a CBOR array into a slice, Unmarshal allocates a new slice only +// if the CBOR array is empty or slice capacity is less than CBOR array length. +// Otherwise Unmarshal reuses the existing slice, overwriting existing elements. +// Unmarshal sets the slice length to CBOR array length. +// +// To ummarshal a CBOR array into a Go array, Unmarshal decodes CBOR array +// elements into corresponding Go array elements. If the Go array is smaller +// than the CBOR array, the additional CBOR array elements are discarded. If +// the CBOR array is smaller than the Go array, the additional Go array elements +// are set to zero values. +// +// To unmarshal a CBOR map into a map, Unmarshal allocates a new map only if the +// map is nil. Otherwise Unmarshal reuses the existing map, keeping existing +// entries. Unmarshal stores key-value pairs from the CBOR map into Go map. +// +// To unmarshal a CBOR map into a struct, Unmarshal matches CBOR map keys to the +// keys in the following priority: +// +// 1. "cbor" key in struct field tag, +// 2. "json" key in struct field tag, +// 3. struct field name. +// +// Unmarshal prefers an exact match but also accepts a case-insensitive match. +// Map keys which don't have a corresponding struct field are ignored. +// +// To unmarshal a CBOR text string into a time.Time value, Unmarshal parses text +// string formatted in RFC3339. To unmarshal a CBOR integer/float into a +// time.Time value, Unmarshal creates an unix time with integer/float as seconds +// and fractional seconds since January 1, 1970 UTC. +// +// To unmarshal CBOR into a value implementing the Unmarshaler interface, +// Unmarshal calls that value's UnmarshalCBOR method. +// +// Unmarshal decodes a CBOR byte string into a value implementing +// encoding.BinaryUnmarshaler. +// +// If a CBOR value is not appropriate for a given Go type, or if a CBOR number +// overflows the Go type, Unmarshal skips that field and completes the +// unmarshalling as best as it can. If no more serious errors are encountered, +// unmarshal returns an UnmarshalTypeError describing the earliest such error. +// In any case, it's not guaranteed that all the remaining fields following the +// problematic one will be unmarshaled into the target object. +// +// The CBOR null value unmarshals into a slice/map/pointer/interface by setting +// that Go value to nil. Because null is often used to mean "not present", +// unmarshalling a CBOR null into any other Go type has no effect on the value +// produces no error. +// +// Unmarshal ignores CBOR tag data and parses tagged data following CBOR tag. +func Unmarshal(data []byte, v interface{}) error { + return defaultDecMode.Unmarshal(data, v) +} + +// Unmarshaler is the interface implemented by types that can unmarshal a CBOR +// representation of themselves. The input can be assumed to be a valid encoding +// of a CBOR value. UnmarshalCBOR must copy the CBOR data if it wishes to retain +// the data after returning. +type Unmarshaler interface { + UnmarshalCBOR([]byte) error +} + +// InvalidUnmarshalError describes an invalid argument passed to Unmarshal. +type InvalidUnmarshalError struct { + Type reflect.Type +} + +func (e *InvalidUnmarshalError) Error() string { + if e.Type == nil { + return "cbor: Unmarshal(nil)" + } + if e.Type.Kind() != reflect.Ptr { + return "cbor: Unmarshal(non-pointer " + e.Type.String() + ")" + } + return "cbor: Unmarshal(nil " + e.Type.String() + ")" +} + +// UnmarshalTypeError describes a CBOR value that was not appropriate for a Go type. +type UnmarshalTypeError struct { + Value string // description of CBOR value + Type reflect.Type // type of Go value it could not be assigned to + Struct string // struct type containing the field + Field string // name of the field holding the Go value + errMsg string // additional error message (optional) +} + +func (e *UnmarshalTypeError) Error() string { + var s string + if e.Struct != "" || e.Field != "" { + s = "cbor: cannot unmarshal " + e.Value + " into Go struct field " + e.Struct + "." + e.Field + " of type " + e.Type.String() + } else { + s = "cbor: cannot unmarshal " + e.Value + " into Go value of type " + e.Type.String() + } + if e.errMsg != "" { + s += " (" + e.errMsg + ")" + } + return s +} + +// DupMapKeyError describes detected duplicate map key in CBOR map. +type DupMapKeyError struct { + Key interface{} + Index int +} + +func (e *DupMapKeyError) Error() string { + return fmt.Sprintf("cbor: found duplicate map key \"%v\" at map element index %d", e.Key, e.Index) +} + +// DupMapKeyMode specifies how to enforce duplicate map key. +type DupMapKeyMode int + +const ( + // DupMapKeyQuiet doesn't enforce duplicate map key. Decoder quietly (no error) + // uses faster of "keep first" or "keep last" depending on Go data type and other factors. + DupMapKeyQuiet DupMapKeyMode = iota + + // DupMapKeyEnforcedAPF enforces detection and rejection of duplicate map keys. + // APF means "Allow Partial Fill" and the destination map or struct can be partially filled. + // If a duplicate map key is detected, DupMapKeyError is returned without further decoding + // of the map. It's the caller's responsibility to respond to DupMapKeyError by + // discarding the partially filled result if their protocol requires it. + // WARNING: using DupMapKeyEnforcedAPF will decrease performance and increase memory use. + DupMapKeyEnforcedAPF + + maxDupMapKeyMode +) + +func (dmkm DupMapKeyMode) valid() bool { + return dmkm < maxDupMapKeyMode +} + +// IndefLengthMode specifies whether to allow indefinite length items. +type IndefLengthMode int + +const ( + // IndefLengthAllowed allows indefinite length items. + IndefLengthAllowed IndefLengthMode = iota + + // IndefLengthForbidden disallows indefinite length items. + IndefLengthForbidden + + maxIndefLengthMode +) + +func (m IndefLengthMode) valid() bool { + return m < maxIndefLengthMode +} + +// TagsMode specifies whether to allow CBOR tags. +type TagsMode int + +const ( + // TagsAllowed allows CBOR tags. + TagsAllowed TagsMode = iota + + // TagsForbidden disallows CBOR tags. + TagsForbidden + + maxTagsMode +) + +func (tm TagsMode) valid() bool { + return tm < maxTagsMode +} + +// DecOptions specifies decoding options. +type DecOptions struct { + // DupMapKey specifies whether to enforce duplicate map key. + DupMapKey DupMapKeyMode + + // TimeTag specifies whether to check validity of time.Time (e.g. valid tag number and tag content type). + // For now, valid tag number means 0 or 1 as specified in RFC 7049 if the Go type is time.Time. + TimeTag DecTagMode + + // MaxNestedLevels specifies the max nested levels allowed for any combination of CBOR array, maps, and tags. + // Default is 32 levels and it can be set to [4, 256]. + MaxNestedLevels int + + // MaxArrayElements specifies the max number of elements for CBOR arrays. + // Default is 128*1024=131072 and it can be set to [16, 134217728] + MaxArrayElements int + + // MaxMapPairs specifies the max number of key-value pairs for CBOR maps. + // Default is 128*1024=131072 and it can be set to [16, 134217728] + MaxMapPairs int + + // IndefLength specifies whether to allow indefinite length CBOR items. + IndefLength IndefLengthMode + + // TagsMd specifies whether to allow CBOR tags (major type 6). + TagsMd TagsMode +} + +// DecMode returns DecMode with immutable options and no tags (safe for concurrency). +func (opts DecOptions) DecMode() (DecMode, error) { + return opts.decMode() +} + +// DecModeWithTags returns DecMode with options and tags that are both immutable (safe for concurrency). +func (opts DecOptions) DecModeWithTags(tags TagSet) (DecMode, error) { + if opts.TagsMd == TagsForbidden { + return nil, errors.New("cbor: cannot create DecMode with TagSet when TagsMd is TagsForbidden") + } + if tags == nil { + return nil, errors.New("cbor: cannot create DecMode with nil value as TagSet") + } + + dm, err := opts.decMode() + if err != nil { + return nil, err + } + + // Copy tags + ts := tagSet(make(map[reflect.Type]*tagItem)) + syncTags := tags.(*syncTagSet) + syncTags.RLock() + for contentType, tag := range syncTags.t { + if tag.opts.DecTag != DecTagIgnored { + ts[contentType] = tag + } + } + syncTags.RUnlock() + + if len(ts) > 0 { + dm.tags = ts + } + + return dm, nil +} + +// DecModeWithSharedTags returns DecMode with immutable options and mutable shared tags (safe for concurrency). +func (opts DecOptions) DecModeWithSharedTags(tags TagSet) (DecMode, error) { + if opts.TagsMd == TagsForbidden { + return nil, errors.New("cbor: cannot create DecMode with TagSet when TagsMd is TagsForbidden") + } + if tags == nil { + return nil, errors.New("cbor: cannot create DecMode with nil value as TagSet") + } + dm, err := opts.decMode() + if err != nil { + return nil, err + } + dm.tags = tags + return dm, nil +} + +const ( + defaultMaxArrayElements = 131072 + minMaxArrayElements = 16 + maxMaxArrayElements = 134217728 + + defaultMaxMapPairs = 131072 + minMaxMapPairs = 16 + maxMaxMapPairs = 134217728 +) + +func (opts DecOptions) decMode() (*decMode, error) { + if !opts.DupMapKey.valid() { + return nil, errors.New("cbor: invalid DupMapKey " + strconv.Itoa(int(opts.DupMapKey))) + } + if !opts.TimeTag.valid() { + return nil, errors.New("cbor: invalid TimeTag " + strconv.Itoa(int(opts.TimeTag))) + } + if !opts.IndefLength.valid() { + return nil, errors.New("cbor: invalid IndefLength " + strconv.Itoa(int(opts.IndefLength))) + } + if !opts.TagsMd.valid() { + return nil, errors.New("cbor: invalid TagsMd " + strconv.Itoa(int(opts.TagsMd))) + } + if opts.MaxNestedLevels == 0 { + opts.MaxNestedLevels = 32 + } else if opts.MaxNestedLevels < 4 || opts.MaxNestedLevels > 256 { + return nil, errors.New("cbor: invalid MaxNestedLevels " + strconv.Itoa(opts.MaxNestedLevels) + " (range is [4, 256])") + } + if opts.MaxArrayElements == 0 { + opts.MaxArrayElements = defaultMaxArrayElements + } else if opts.MaxArrayElements < minMaxArrayElements || opts.MaxArrayElements > maxMaxArrayElements { + return nil, errors.New("cbor: invalid MaxArrayElements " + strconv.Itoa(opts.MaxArrayElements) + " (range is [" + strconv.Itoa(minMaxArrayElements) + ", " + strconv.Itoa(maxMaxArrayElements) + "])") + } + if opts.MaxMapPairs == 0 { + opts.MaxMapPairs = defaultMaxMapPairs + } else if opts.MaxMapPairs < minMaxMapPairs || opts.MaxMapPairs > maxMaxMapPairs { + return nil, errors.New("cbor: invalid MaxMapPairs " + strconv.Itoa(opts.MaxMapPairs) + " (range is [" + strconv.Itoa(minMaxMapPairs) + ", " + strconv.Itoa(maxMaxMapPairs) + "])") + } + dm := decMode{ + dupMapKey: opts.DupMapKey, + timeTag: opts.TimeTag, + maxNestedLevels: opts.MaxNestedLevels, + maxArrayElements: opts.MaxArrayElements, + maxMapPairs: opts.MaxMapPairs, + indefLength: opts.IndefLength, + tagsMd: opts.TagsMd, + } + return &dm, nil +} + +// DecMode is the main interface for CBOR decoding. +type DecMode interface { + Unmarshal(data []byte, v interface{}) error + NewDecoder(r io.Reader) *Decoder + DecOptions() DecOptions +} + +type decMode struct { + tags tagProvider + dupMapKey DupMapKeyMode + timeTag DecTagMode + maxNestedLevels int + maxArrayElements int + maxMapPairs int + indefLength IndefLengthMode + tagsMd TagsMode +} + +var defaultDecMode, _ = DecOptions{}.decMode() + +// DecOptions returns user specified options used to create this DecMode. +func (dm *decMode) DecOptions() DecOptions { + return DecOptions{ + DupMapKey: dm.dupMapKey, + TimeTag: dm.timeTag, + MaxNestedLevels: dm.maxNestedLevels, + MaxArrayElements: dm.maxArrayElements, + MaxMapPairs: dm.maxMapPairs, + IndefLength: dm.indefLength, + TagsMd: dm.tagsMd, + } +} + +// Unmarshal parses the CBOR-encoded data and stores the result in the value +// pointed to by v using dm DecMode. If v is nil or not a pointer, Unmarshal +// returns an error. +// +// See the documentation for Unmarshal for details. +func (dm *decMode) Unmarshal(data []byte, v interface{}) error { + d := decodeState{data: data, dm: dm} + return d.value(v) +} + +// NewDecoder returns a new decoder that reads from r using dm DecMode. +func (dm *decMode) NewDecoder(r io.Reader) *Decoder { + return &Decoder{r: r, d: decodeState{dm: dm}} +} + +type decodeState struct { + data []byte + off int // next read offset in data + dm *decMode +} + +func (d *decodeState) value(v interface{}) error { + rv := reflect.ValueOf(v) + if rv.Kind() != reflect.Ptr || rv.IsNil() { + return &InvalidUnmarshalError{reflect.TypeOf(v)} + } + + off := d.off // Save offset before data validation + err := d.valid() + d.off = off // Restore offset + if err != nil { + return err + } + + rv = rv.Elem() + + if rv.Kind() == reflect.Interface && rv.NumMethod() == 0 { + // Fast path to decode to empty interface without retrieving typeInfo. + iv, err := d.parse() + if iv != nil { + rv.Set(reflect.ValueOf(iv)) + } + return err + } + + return d.parseToValue(rv, getTypeInfo(rv.Type())) +} + +type cborType uint8 + +const ( + cborTypePositiveInt cborType = 0x00 + cborTypeNegativeInt cborType = 0x20 + cborTypeByteString cborType = 0x40 + cborTypeTextString cborType = 0x60 + cborTypeArray cborType = 0x80 + cborTypeMap cborType = 0xa0 + cborTypeTag cborType = 0xc0 + cborTypePrimitives cborType = 0xe0 +) + +func (t cborType) String() string { + switch t { + case cborTypePositiveInt: + return "positive integer" + case cborTypeNegativeInt: + return "negative integer" + case cborTypeByteString: + return "byte string" + case cborTypeTextString: + return "UTF-8 text string" + case cborTypeArray: + return "array" + case cborTypeMap: + return "map" + case cborTypeTag: + return "tag" + case cborTypePrimitives: + return "primitives" + default: + return "Invalid type " + strconv.Itoa(int(t)) + } +} + +// parseToValue assumes data is well-formed, and does not perform bounds checking. +// This function is complicated because it's the main function that decodes CBOR data to reflect.Value. +func (d *decodeState) parseToValue(v reflect.Value, tInfo *typeInfo) error { //nolint:gocyclo + // Create new value for the pointer v to point to if CBOR value is not nil/undefined. + if !d.nextCBORNil() { + for v.Kind() == reflect.Ptr { + if v.IsNil() { + if !v.CanSet() { + d.skip() + return errors.New("cbor: cannot set new value for " + v.Type().String()) + } + v.Set(reflect.New(v.Type().Elem())) + } + v = v.Elem() + } + } + + if tInfo.spclType != specialTypeNone { + switch tInfo.spclType { + case specialTypeEmptyIface: + iv, err := d.parse() + if iv != nil { + v.Set(reflect.ValueOf(iv)) + } + return err + case specialTypeTag: + return d.parseToTag(v) + case specialTypeTime: + return d.parseToTime(v) + case specialTypeUnmarshalerIface: + return d.parseToUnmarshaler(v) + } + } + + // Check registered tag number + if tagItem := d.getRegisteredTagItem(tInfo.nonPtrType); tagItem != nil { + t := d.nextCBORType() + if t != cborTypeTag { + if tagItem.opts.DecTag == DecTagRequired { + d.skip() // Required tag number is absent, skip entire tag + return &UnmarshalTypeError{Value: t.String(), Type: tInfo.typ, errMsg: "expect CBOR tag value"} + } + } else if err := d.validRegisteredTagNums(tInfo.nonPtrType, tagItem.num); err != nil { + d.skip() // Skip tag content + return err + } + } + + t := d.nextCBORType() + + // Skip tag number(s) here to avoid recursion + if t == cborTypeTag { + d.getHead() + t = d.nextCBORType() + for t == cborTypeTag { + d.getHead() + t = d.nextCBORType() + } + } + + switch t { + case cborTypePositiveInt: + _, _, val := d.getHead() + return fillPositiveInt(t, val, v) + case cborTypeNegativeInt: + _, _, val := d.getHead() + if val > math.MaxInt64 { + return &UnmarshalTypeError{ + Value: t.String(), + Type: tInfo.nonPtrType, + errMsg: "-1-" + strconv.FormatUint(val, 10) + " overflows Go's int64", + } + } + nValue := int64(-1) ^ int64(val) + return fillNegativeInt(t, nValue, v) + case cborTypeByteString: + b := d.parseByteString() + return fillByteString(t, b, v) + case cborTypeTextString: + b, err := d.parseTextString() + if err != nil { + return err + } + return fillTextString(t, b, v) + case cborTypePrimitives: + _, ai, val := d.getHead() + if ai < 20 || ai == 24 { + return fillPositiveInt(t, val, v) + } + switch ai { + case 20, 21: + return fillBool(t, ai == 21, v) + case 22, 23: + return fillNil(t, v) + case 25: + f := float64(float16.Frombits(uint16(val)).Float32()) + return fillFloat(t, f, v) + case 26: + f := float64(math.Float32frombits(uint32(val))) + return fillFloat(t, f, v) + case 27: + f := math.Float64frombits(val) + return fillFloat(t, f, v) + } + case cborTypeArray: + if tInfo.nonPtrKind == reflect.Slice { + return d.parseArrayToSlice(v, tInfo) + } else if tInfo.nonPtrKind == reflect.Array { + return d.parseArrayToArray(v, tInfo) + } else if tInfo.nonPtrKind == reflect.Struct { + return d.parseArrayToStruct(v, tInfo) + } + d.skip() + return &UnmarshalTypeError{Value: t.String(), Type: tInfo.nonPtrType} + case cborTypeMap: + if tInfo.nonPtrKind == reflect.Struct { + return d.parseMapToStruct(v, tInfo) + } else if tInfo.nonPtrKind == reflect.Map { + return d.parseMapToMap(v, tInfo) + } + d.skip() + return &UnmarshalTypeError{Value: t.String(), Type: tInfo.nonPtrType} + } + return nil +} + +func (d *decodeState) parseToTag(v reflect.Value) error { + t := d.nextCBORType() + if t != cborTypeTag { + d.skip() + return &UnmarshalTypeError{Value: t.String(), Type: typeTag} + } + + // Unmarshal tag number + _, _, num := d.getHead() + + // Unmarshal tag content + content, err := d.parse() + if err != nil { + return err + } + + v.Set(reflect.ValueOf(Tag{num, content})) + return nil +} + +func (d *decodeState) parseToTime(v reflect.Value) error { + t := d.nextCBORType() + + // Verify that tag number or absent of tag number is acceptable to specified timeTag. + if t == cborTypeTag { + if d.dm.timeTag == DecTagIgnored { + // Skip tag number + d.getHead() + t = d.nextCBORType() + for t == cborTypeTag { + d.getHead() + t = d.nextCBORType() + } + } else { + // Read tag number + _, _, tagNum := d.getHead() + + // Verify tag number (0 or 1) is followed by appropriate tag content type. + t = d.nextCBORType() + switch tagNum { + case 0: + // Tag content (date/time text string in RFC 3339 format) must be string type. + if t != cborTypeTextString { + d.skip() + return errors.New("cbor: tag number 0 must be followed by text string, got " + t.String()) + } + case 1: + // Tag content (epoch date/time) must be uint, int, or float type. + if t != cborTypePositiveInt && t != cborTypeNegativeInt && (d.data[d.off] < 0xf9 || d.data[d.off] > 0xfb) { + d.skip() + return errors.New("cbor: tag number 1 must be followed by integer or floating-point number, got " + t.String()) + } + default: + d.skip() + return errors.New("cbor: wrong tag number for time.Time, got " + strconv.Itoa(int(tagNum)) + ", expect 0 or 1") + } + } + } else { + if d.dm.timeTag == DecTagRequired { + d.skip() + return &UnmarshalTypeError{Value: t.String(), Type: typeTime, errMsg: "expect CBOR tag value"} + } + } + + switch t { + case cborTypePositiveInt: + _, _, val := d.getHead() + tm := time.Unix(int64(val), 0) + v.Set(reflect.ValueOf(tm)) + return nil + case cborTypeNegativeInt: + _, _, val := d.getHead() + if val > math.MaxInt64 { + return &UnmarshalTypeError{ + Value: t.String(), + Type: typeTime, + errMsg: "-1-" + strconv.FormatUint(val, 10) + " overflows Go's int64", + } + } + nValue := int64(-1) ^ int64(val) + tm := time.Unix(nValue, 0) + v.Set(reflect.ValueOf(tm)) + return nil + case cborTypeTextString: + b, err := d.parseTextString() + if err != nil { + return err + } + tm, err := time.Parse(time.RFC3339, string(b)) + if err != nil { + return errors.New("cbor: cannot set " + string(b) + " for time.Time: " + err.Error()) + } + v.Set(reflect.ValueOf(tm)) + return nil + case cborTypePrimitives: + _, ai, val := d.getHead() + var f float64 + switch ai { + case 22, 23: + v.Set(reflect.ValueOf(time.Time{})) + return nil + case 25: + f = float64(float16.Frombits(uint16(val)).Float32()) + case 26: + f = float64(math.Float32frombits(uint32(val))) + case 27: + f = math.Float64frombits(val) + default: + return &UnmarshalTypeError{Value: t.String(), Type: typeTime} + } + if math.IsNaN(f) || math.IsInf(f, 0) { + v.Set(reflect.ValueOf(time.Time{})) + return nil + } + f1, f2 := math.Modf(f) + tm := time.Unix(int64(f1), int64(f2*1e9)) + v.Set(reflect.ValueOf(tm)) + return nil + } + d.skip() + return &UnmarshalTypeError{Value: t.String(), Type: typeTime} +} + +// parseToUnmarshaler assumes data is well-formed, and does not perform bounds checking. +func (d *decodeState) parseToUnmarshaler(v reflect.Value) error { + if d.nextCBORNil() && v.Kind() == reflect.Ptr && v.IsNil() { + d.skip() + return nil + } + + if v.Kind() != reflect.Ptr && v.CanAddr() { + v = v.Addr() + } + if u, ok := v.Interface().(Unmarshaler); ok { + start := d.off + d.skip() + return u.UnmarshalCBOR(d.data[start:d.off]) + } + d.skip() + return errors.New("cbor: failed to assert " + v.Type().String() + " as cbor.Unmarshaler") +} + +// parse assumes data is well-formed, and does not perform bounds checking. +func (d *decodeState) parse() (interface{}, error) { + t := d.nextCBORType() + switch t { + case cborTypePositiveInt: + _, _, val := d.getHead() + return val, nil + case cborTypeNegativeInt: + _, _, val := d.getHead() + if val > math.MaxInt64 { + return nil, &UnmarshalTypeError{ + Value: t.String(), + Type: reflect.TypeOf([]interface{}(nil)).Elem(), + errMsg: "-1-" + strconv.FormatUint(val, 10) + " overflows Go's int64", + } + } + nValue := int64(-1) ^ int64(val) + return nValue, nil + case cborTypeByteString: + return d.parseByteString(), nil + case cborTypeTextString: + b, err := d.parseTextString() + if err != nil { + return nil, err + } + return string(b), nil + case cborTypeTag: + _, _, tagNum := d.getHead() + nt := d.nextCBORType() + content, err := d.parse() + if err != nil { + return nil, err + } + switch tagNum { + case 0: + // Tag content should be date/time text string in RFC 3339 format. + s, ok := content.(string) + if !ok { + return nil, errors.New("cbor: tag number 0 must be followed by text string, got " + nt.String()) + } + tm, err := time.Parse(time.RFC3339, s) + if err != nil { + return nil, errors.New("cbor: cannot set " + s + " for time.Time: " + err.Error()) + } + return tm, nil + case 1: + // Tag content should be epoch date/time. + switch content := content.(type) { + case uint64: + return time.Unix(int64(content), 0), nil + case int64: + return time.Unix(content, 0), nil + case float64: + f1, f2 := math.Modf(content) + return time.Unix(int64(f1), int64(f2*1e9)), nil + default: + return nil, errors.New("cbor: tag number 1 must be followed by integer or floating-point number, got " + nt.String()) + } + } + return Tag{tagNum, content}, nil + case cborTypePrimitives: + _, ai, val := d.getHead() + if ai < 20 || ai == 24 { + return val, nil + } + switch ai { + case 20, 21: + return (ai == 21), nil + case 22, 23: + return nil, nil + case 25: + f := float64(float16.Frombits(uint16(val)).Float32()) + return f, nil + case 26: + f := float64(math.Float32frombits(uint32(val))) + return f, nil + case 27: + f := math.Float64frombits(val) + return f, nil + } + case cborTypeArray: + return d.parseArray() + case cborTypeMap: + return d.parseMap() + } + return nil, nil +} + +// parseByteString parses CBOR encoded byte string. It returns a byte slice +// pointing to a copy of parsed data. +func (d *decodeState) parseByteString() []byte { + _, ai, val := d.getHead() + if ai != 31 { + b := make([]byte, int(val)) + copy(b, d.data[d.off:d.off+int(val)]) + d.off += int(val) + return b + } + // Process indefinite length string chunks. + b := []byte{} + for !d.foundBreak() { + _, _, val = d.getHead() + b = append(b, d.data[d.off:d.off+int(val)]...) + d.off += int(val) + } + return b +} + +// parseTextString parses CBOR encoded text string. It does not return a string +// to prevent creating an extra copy of string. Caller should wrap returned +// byte slice as string when needed. +// +// parseStruct() uses parseTextString() to improve memory and performance, +// compared with using parse(reflect.Value). parse(reflect.Value) sets +// reflect.Value with parsed string, while parseTextString() returns zero-copy []byte. +func (d *decodeState) parseTextString() ([]byte, error) { + _, ai, val := d.getHead() + if ai != 31 { + b := d.data[d.off : d.off+int(val)] + d.off += int(val) + if !utf8.Valid(b) { + return nil, &SemanticError{"cbor: invalid UTF-8 string"} + } + return b, nil + } + // Process indefinite length string chunks. + b := []byte{} + for !d.foundBreak() { + _, _, val = d.getHead() + x := d.data[d.off : d.off+int(val)] + d.off += int(val) + if !utf8.Valid(x) { + for !d.foundBreak() { + d.skip() // Skip remaining chunk on error + } + return nil, &SemanticError{"cbor: invalid UTF-8 string"} + } + b = append(b, x...) + } + return b, nil +} + +func (d *decodeState) parseArray() ([]interface{}, error) { + _, ai, val := d.getHead() + hasSize := (ai != 31) + count := int(val) + if !hasSize { + count = d.numOfItemsUntilBreak() // peek ahead to get array size to preallocate slice for better performance + } + v := make([]interface{}, count) + var e interface{} + var err, lastErr error + for i := 0; (hasSize && i < count) || (!hasSize && !d.foundBreak()); i++ { + if e, lastErr = d.parse(); lastErr != nil { + if err == nil { + err = lastErr + } + continue + } + v[i] = e + } + return v, err +} + +func (d *decodeState) parseArrayToSlice(v reflect.Value, tInfo *typeInfo) error { + _, ai, val := d.getHead() + hasSize := (ai != 31) + count := int(val) + if !hasSize { + count = d.numOfItemsUntilBreak() // peek ahead to get array size to preallocate slice for better performance + } + if count == 0 { + v.Set(reflect.MakeSlice(tInfo.nonPtrType, 0, 0)) + } + if v.IsNil() || v.Cap() < count { + v.Set(reflect.MakeSlice(tInfo.nonPtrType, count, count)) + } + v.SetLen(count) + var err error + for i := 0; (hasSize && i < count) || (!hasSize && !d.foundBreak()); i++ { + if lastErr := d.parseToValue(v.Index(i), tInfo.elemTypeInfo); lastErr != nil { + if err == nil { + err = lastErr + } + } + } + return err +} + +func (d *decodeState) parseArrayToArray(v reflect.Value, tInfo *typeInfo) error { + _, ai, val := d.getHead() + hasSize := (ai != 31) + count := int(val) + gi := 0 + vLen := v.Len() + var err error + for ci := 0; (hasSize && ci < count) || (!hasSize && !d.foundBreak()); ci++ { + if gi < vLen { + // Read CBOR array element and set array element + if lastErr := d.parseToValue(v.Index(gi), tInfo.elemTypeInfo); lastErr != nil { + if err == nil { + err = lastErr + } + } + gi++ + } else { + d.skip() // Skip remaining CBOR array element + } + } + // Set remaining Go array elements to zero values. + if gi < vLen { + zeroV := reflect.Zero(tInfo.elemTypeInfo.typ) + for ; gi < vLen; gi++ { + v.Index(gi).Set(zeroV) + } + } + return err +} + +func (d *decodeState) parseMap() (map[interface{}]interface{}, error) { + _, ai, val := d.getHead() + hasSize := (ai != 31) + count := int(val) + m := make(map[interface{}]interface{}) + var k, e interface{} + var err, lastErr error + keyCount := 0 + for i := 0; (hasSize && i < count) || (!hasSize && !d.foundBreak()); i++ { + // Parse CBOR map key. + if k, lastErr = d.parse(); lastErr != nil { + if err == nil { + err = lastErr + } + d.skip() + continue + } + + // Detect if CBOR map key can be used as Go map key. + kkind := reflect.ValueOf(k).Kind() + if tag, ok := k.(Tag); ok { + kkind = tag.contentKind() + } + if !isHashableKind(kkind) { + if err == nil { + err = errors.New("cbor: invalid map key type: " + kkind.String()) + } + d.skip() + continue + } + + // Parse CBOR map value. + if e, lastErr = d.parse(); lastErr != nil { + if err == nil { + err = lastErr + } + continue + } + + // Add key-value pair to Go map. + m[k] = e + + // Detect duplicate map key. + if d.dm.dupMapKey == DupMapKeyEnforcedAPF { + newKeyCount := len(m) + if newKeyCount == keyCount { + m[k] = nil + err = &DupMapKeyError{k, i} + i++ + // skip the rest of the map + for ; (hasSize && i < count) || (!hasSize && !d.foundBreak()); i++ { + d.skip() // Skip map key + d.skip() // Skip map value + } + return m, err + } + keyCount = newKeyCount + } + } + return m, err +} + +func (d *decodeState) parseMapToMap(v reflect.Value, tInfo *typeInfo) error { //nolint:gocyclo + _, ai, val := d.getHead() + hasSize := (ai != 31) + count := int(val) + if v.IsNil() { + mapsize := count + if !hasSize { + mapsize = 0 + } + v.Set(reflect.MakeMapWithSize(tInfo.nonPtrType, mapsize)) + } + keyType, eleType := tInfo.keyTypeInfo.typ, tInfo.elemTypeInfo.typ + reuseKey, reuseEle := isImmutableKind(tInfo.keyTypeInfo.kind), isImmutableKind(tInfo.elemTypeInfo.kind) + var keyValue, eleValue, zeroKeyValue, zeroEleValue reflect.Value + keyIsInterfaceType := keyType == typeIntf // If key type is interface{}, need to check if key value is hashable. + var err, lastErr error + keyCount := v.Len() + var existingKeys map[interface{}]bool // Store existing map keys, used for detecting duplicate map key. + if d.dm.dupMapKey == DupMapKeyEnforcedAPF { + existingKeys = make(map[interface{}]bool, keyCount) + if keyCount > 0 { + vKeys := v.MapKeys() + for i := 0; i < len(vKeys); i++ { + existingKeys[vKeys[i].Interface()] = true + } + } + } + for i := 0; (hasSize && i < count) || (!hasSize && !d.foundBreak()); i++ { + // Parse CBOR map key. + if !keyValue.IsValid() { + keyValue = reflect.New(keyType).Elem() + } else if !reuseKey { + if !zeroKeyValue.IsValid() { + zeroKeyValue = reflect.Zero(keyType) + } + keyValue.Set(zeroKeyValue) + } + if lastErr = d.parseToValue(keyValue, tInfo.keyTypeInfo); lastErr != nil { + if err == nil { + err = lastErr + } + d.skip() + continue + } + + // Detect if CBOR map key can be used as Go map key. + if keyIsInterfaceType { + kkind := keyValue.Elem().Kind() + if keyValue.Elem().IsValid() { + if tag, ok := keyValue.Elem().Interface().(Tag); ok { + kkind = tag.contentKind() + } + } + if !isHashableKind(kkind) { + if err == nil { + err = errors.New("cbor: invalid map key type: " + kkind.String()) + } + d.skip() + continue + } + } + + // Parse CBOR map value. + if !eleValue.IsValid() { + eleValue = reflect.New(eleType).Elem() + } else if !reuseEle { + if !zeroEleValue.IsValid() { + zeroEleValue = reflect.Zero(eleType) + } + eleValue.Set(zeroEleValue) + } + if lastErr := d.parseToValue(eleValue, tInfo.elemTypeInfo); lastErr != nil { + if err == nil { + err = lastErr + } + continue + } + + // Add key-value pair to Go map. + v.SetMapIndex(keyValue, eleValue) + + // Detect duplicate map key. + if d.dm.dupMapKey == DupMapKeyEnforcedAPF { + newKeyCount := v.Len() + if newKeyCount == keyCount { + kvi := keyValue.Interface() + if !existingKeys[kvi] { + v.SetMapIndex(keyValue, reflect.New(eleType).Elem()) + err = &DupMapKeyError{kvi, i} + i++ + // skip the rest of the map + for ; (hasSize && i < count) || (!hasSize && !d.foundBreak()); i++ { + d.skip() // skip map key + d.skip() // skip map value + } + return err + } + delete(existingKeys, kvi) + } + keyCount = newKeyCount + } + } + return err +} + +func (d *decodeState) parseArrayToStruct(v reflect.Value, tInfo *typeInfo) error { + structType := getDecodingStructType(tInfo.nonPtrType) + if structType.err != nil { + return structType.err + } + + if !structType.toArray { + t := d.nextCBORType() + d.skip() + return &UnmarshalTypeError{ + Value: t.String(), + Type: tInfo.nonPtrType, + errMsg: "cannot decode CBOR array to struct without toarray option", + } + } + + start := d.off + t, ai, val := d.getHead() + hasSize := (ai != 31) + count := int(val) + if !hasSize { + count = d.numOfItemsUntilBreak() // peek ahead to get array size + } + if count != len(structType.fields) { + d.off = start + d.skip() + return &UnmarshalTypeError{ + Value: t.String(), + Type: tInfo.typ, + errMsg: "cannot decode CBOR array to struct with different number of elements", + } + } + var err error + for i := 0; (hasSize && i < count) || (!hasSize && !d.foundBreak()); i++ { + f := structType.fields[i] + fv, lastErr := fieldByIndex(v, f.idx) + if lastErr != nil { + if err == nil { + err = lastErr + } + d.skip() + continue + } + if lastErr := d.parseToValue(fv, f.typInfo); lastErr != nil { + if err == nil { + if typeError, ok := lastErr.(*UnmarshalTypeError); ok { + typeError.Struct = tInfo.typ.String() + typeError.Field = f.name + err = typeError + } else { + err = lastErr + } + } + } + } + return err +} + +// parseMapToStruct needs to be fast so gocyclo can be ignored for now. +func (d *decodeState) parseMapToStruct(v reflect.Value, tInfo *typeInfo) error { //nolint:gocyclo + structType := getDecodingStructType(tInfo.nonPtrType) + if structType.err != nil { + return structType.err + } + + if structType.toArray { + t := d.nextCBORType() + d.skip() + return &UnmarshalTypeError{ + Value: t.String(), + Type: tInfo.nonPtrType, + errMsg: "cannot decode CBOR map to struct with toarray option", + } + } + + foundFldIdx := make([]bool, len(structType.fields)) + _, ai, val := d.getHead() + hasSize := (ai != 31) + count := int(val) + var err, lastErr error + keyCount := 0 + var mapKeys map[interface{}]struct{} // Store map keys, used for detecting duplicate map key. + if d.dm.dupMapKey == DupMapKeyEnforcedAPF { + mapKeys = make(map[interface{}]struct{}, len(structType.fields)) + } + for j := 0; (hasSize && j < count) || (!hasSize && !d.foundBreak()); j++ { + var f *field + var k interface{} // Used by duplicate map key detection + + t := d.nextCBORType() + if t == cborTypeTextString { + var keyBytes []byte + keyBytes, lastErr = d.parseTextString() + if lastErr != nil { + if err == nil { + err = lastErr + } + d.skip() // skip value + continue + } + + keyLen := len(keyBytes) + // Find field with exact match + for i := 0; i < len(structType.fields); i++ { + fld := structType.fields[i] + if !foundFldIdx[i] && len(fld.name) == keyLen && fld.name == string(keyBytes) { + f = fld + foundFldIdx[i] = true + break + } + } + // Find field with case-insensitive match + if f == nil { + keyString := string(keyBytes) + for i := 0; i < len(structType.fields); i++ { + fld := structType.fields[i] + if !foundFldIdx[i] && len(fld.name) == keyLen && strings.EqualFold(fld.name, keyString) { + f = fld + foundFldIdx[i] = true + break + } + } + } + + if d.dm.dupMapKey == DupMapKeyEnforcedAPF { + k = string(keyBytes) + } + } else if t <= cborTypeNegativeInt { // uint/int + var nameAsInt int64 + + if t == cborTypePositiveInt { + _, _, val := d.getHead() + nameAsInt = int64(val) + } else { + _, _, val := d.getHead() + if val > math.MaxInt64 { + if err == nil { + err = &UnmarshalTypeError{ + Value: t.String(), + Type: reflect.TypeOf(int64(0)), + errMsg: "-1-" + strconv.FormatUint(val, 10) + " overflows Go's int64", + } + } + d.skip() // skip value + continue + } + nameAsInt = int64(-1) ^ int64(val) + } + + // Find field + for i := 0; i < len(structType.fields); i++ { + fld := structType.fields[i] + if !foundFldIdx[i] && fld.keyAsInt && fld.nameAsInt == nameAsInt { + f = fld + foundFldIdx[i] = true + break + } + } + + if d.dm.dupMapKey == DupMapKeyEnforcedAPF { + k = nameAsInt + } + } else { + if err == nil { + err = &UnmarshalTypeError{ + Value: t.String(), + Type: reflect.TypeOf(""), + errMsg: "map key is of type " + t.String() + " and cannot be used to match struct field name", + } + } + if d.dm.dupMapKey == DupMapKeyEnforcedAPF { + // parse key + k, lastErr = d.parse() + if lastErr != nil { + d.skip() // skip value + continue + } + // Detect if CBOR map key can be used as Go map key. + kkind := reflect.ValueOf(k).Kind() + if tag, ok := k.(Tag); ok { + kkind = tag.contentKind() + } + if !isHashableKind(kkind) { + d.skip() // skip value + continue + } + } else { + d.skip() // skip key + } + } + + if d.dm.dupMapKey == DupMapKeyEnforcedAPF { + mapKeys[k] = struct{}{} + newKeyCount := len(mapKeys) + if newKeyCount == keyCount { + err = &DupMapKeyError{k, j} + d.skip() // skip value + j++ + // skip the rest of the map + for ; (hasSize && j < count) || (!hasSize && !d.foundBreak()); j++ { + d.skip() + d.skip() + } + return err + } + keyCount = newKeyCount + } + + if f == nil { + d.skip() // Skip value + continue + } + // reflect.Value.FieldByIndex() panics at nil pointer to unexported + // anonymous field. fieldByIndex() returns error. + fv, lastErr := fieldByIndex(v, f.idx) + if lastErr != nil { + if err == nil { + err = lastErr + } + d.skip() + continue + } + if lastErr = d.parseToValue(fv, f.typInfo); lastErr != nil { + if err == nil { + if typeError, ok := lastErr.(*UnmarshalTypeError); ok { + typeError.Struct = tInfo.nonPtrType.String() + typeError.Field = f.name + err = typeError + } else { + err = lastErr + } + } + } + } + return err +} + +// validRegisteredTagNums verifies that tag numbers match registered tag numbers of type t. +// validRegisteredTagNums assumes next CBOR data type is tag. It scans all tag numbers, and stops at tag content. +func (d *decodeState) validRegisteredTagNums(t reflect.Type, registeredTagNums []uint64) error { + // Scan until next cbor data is tag content. + tagNums := make([]uint64, 0, 2) + for d.nextCBORType() == cborTypeTag { + _, _, val := d.getHead() + tagNums = append(tagNums, val) + } + + // Verify that tag numbers match registered tag numbers of type t + if len(tagNums) != len(registeredTagNums) { + return &WrongTagError{t, registeredTagNums, tagNums} + } + for i, n := range registeredTagNums { + if n != tagNums[i] { + return &WrongTagError{t, registeredTagNums, tagNums} + } + } + return nil +} + +func (d *decodeState) getRegisteredTagItem(vt reflect.Type) *tagItem { + if d.dm.tags != nil { + return d.dm.tags.get(vt) + } + return nil +} + +// skip moves data offset to the next item. skip assumes data is well-formed, +// and does not perform bounds checking. +func (d *decodeState) skip() { + t, ai, val := d.getHead() + + if ai == 31 { + switch t { + case cborTypeByteString, cborTypeTextString, cborTypeArray, cborTypeMap: + for { + if d.data[d.off] == 0xff { + d.off++ + return + } + d.skip() + } + } + } + + switch t { + case cborTypeByteString, cborTypeTextString: + d.off += int(val) + case cborTypeArray: + for i := 0; i < int(val); i++ { + d.skip() + } + case cborTypeMap: + for i := 0; i < int(val)*2; i++ { + d.skip() + } + case cborTypeTag: + d.skip() + } +} + +// getHead assumes data is well-formed, and does not perform bounds checking. +func (d *decodeState) getHead() (t cborType, ai byte, val uint64) { + t = cborType(d.data[d.off] & 0xe0) + ai = d.data[d.off] & 0x1f + val = uint64(ai) + d.off++ + + if ai < 24 { + return + } + if ai == 24 { + val = uint64(d.data[d.off]) + d.off++ + return + } + if ai == 25 { + val = uint64(binary.BigEndian.Uint16(d.data[d.off : d.off+2])) + d.off += 2 + return + } + if ai == 26 { + val = uint64(binary.BigEndian.Uint32(d.data[d.off : d.off+4])) + d.off += 4 + return + } + if ai == 27 { + val = binary.BigEndian.Uint64(d.data[d.off : d.off+8]) + d.off += 8 + return + } + return +} + +func (d *decodeState) numOfItemsUntilBreak() int { + savedOff := d.off + i := 0 + for !d.foundBreak() { + d.skip() + i++ + } + d.off = savedOff + return i +} + +// foundBreak assumes data is well-formed, and does not perform bounds checking. +func (d *decodeState) foundBreak() bool { + if d.data[d.off] == 0xff { + d.off++ + return true + } + return false +} + +func (d *decodeState) reset(data []byte) { + d.data = data + d.off = 0 +} + +func (d *decodeState) nextCBORType() cborType { + return cborType(d.data[d.off] & 0xe0) +} + +func (d *decodeState) nextCBORNil() bool { + return d.data[d.off] == 0xf6 || d.data[d.off] == 0xf7 +} + +var ( + typeIntf = reflect.TypeOf([]interface{}(nil)).Elem() + typeTime = reflect.TypeOf(time.Time{}) + typeUnmarshaler = reflect.TypeOf((*Unmarshaler)(nil)).Elem() + typeBinaryUnmarshaler = reflect.TypeOf((*encoding.BinaryUnmarshaler)(nil)).Elem() +) + +func fillNil(t cborType, v reflect.Value) error { + switch v.Kind() { + case reflect.Slice, reflect.Map, reflect.Interface, reflect.Ptr: + v.Set(reflect.Zero(v.Type())) + return nil + } + return nil +} + +func fillPositiveInt(t cborType, val uint64, v reflect.Value) error { + switch v.Kind() { + case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: + if val > math.MaxInt64 { + return &UnmarshalTypeError{Value: t.String(), Type: v.Type(), errMsg: strconv.FormatUint(val, 10) + " overflows " + v.Type().String()} + } + if v.OverflowInt(int64(val)) { + return &UnmarshalTypeError{Value: t.String(), Type: v.Type(), errMsg: strconv.FormatUint(val, 10) + " overflows " + v.Type().String()} + } + v.SetInt(int64(val)) + return nil + case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64: + if v.OverflowUint(val) { + return &UnmarshalTypeError{Value: t.String(), Type: v.Type(), errMsg: strconv.FormatUint(val, 10) + " overflows " + v.Type().String()} + } + v.SetUint(val) + return nil + case reflect.Float32, reflect.Float64: + f := float64(val) + v.SetFloat(f) + return nil + } + return &UnmarshalTypeError{Value: t.String(), Type: v.Type()} +} + +func fillNegativeInt(t cborType, val int64, v reflect.Value) error { + switch v.Kind() { + case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: + if v.OverflowInt(val) { + return &UnmarshalTypeError{Value: t.String(), Type: v.Type(), errMsg: strconv.FormatInt(val, 10) + " overflows " + v.Type().String()} + } + v.SetInt(val) + return nil + case reflect.Float32, reflect.Float64: + f := float64(val) + v.SetFloat(f) + return nil + } + return &UnmarshalTypeError{Value: t.String(), Type: v.Type()} +} + +func fillBool(t cborType, val bool, v reflect.Value) error { + if v.Kind() == reflect.Bool { + v.SetBool(val) + return nil + } + return &UnmarshalTypeError{Value: t.String(), Type: v.Type()} +} + +func fillFloat(t cborType, val float64, v reflect.Value) error { + switch v.Kind() { + case reflect.Float32, reflect.Float64: + if v.OverflowFloat(val) { + return &UnmarshalTypeError{ + Value: t.String(), + Type: v.Type(), + errMsg: strconv.FormatFloat(val, 'E', -1, 64) + " overflows " + v.Type().String(), + } + } + v.SetFloat(val) + return nil + } + return &UnmarshalTypeError{Value: t.String(), Type: v.Type()} +} + +func fillByteString(t cborType, val []byte, v reflect.Value) error { + if reflect.PtrTo(v.Type()).Implements(typeBinaryUnmarshaler) { + if v.CanAddr() { + v = v.Addr() + if u, ok := v.Interface().(encoding.BinaryUnmarshaler); ok { + return u.UnmarshalBinary(val) + } + } + return errors.New("cbor: cannot set new value for " + v.Type().String()) + } + if v.Kind() == reflect.Slice && v.Type().Elem().Kind() == reflect.Uint8 { + v.SetBytes(val) + return nil + } + if v.Kind() == reflect.Array && v.Type().Elem().Kind() == reflect.Uint8 { + vLen := v.Len() + i := 0 + for ; i < vLen && i < len(val); i++ { + v.Index(i).SetUint(uint64(val[i])) + } + // Set remaining Go array elements to zero values. + if i < vLen { + zeroV := reflect.Zero(reflect.TypeOf(byte(0))) + for ; i < vLen; i++ { + v.Index(i).Set(zeroV) + } + } + return nil + } + return &UnmarshalTypeError{Value: t.String(), Type: v.Type()} +} + +func fillTextString(t cborType, val []byte, v reflect.Value) error { + if v.Kind() == reflect.String { + v.SetString(string(val)) + return nil + } + return &UnmarshalTypeError{Value: t.String(), Type: v.Type()} +} + +func isImmutableKind(k reflect.Kind) bool { + switch k { + case reflect.Bool, + reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, + reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, + reflect.Float32, reflect.Float64, + reflect.String: + return true + default: + return false + } +} + +func isHashableKind(k reflect.Kind) bool { + switch k { + case reflect.Slice, reflect.Map, reflect.Func: + return false + default: + return true + } +} + +// fieldByIndex returns the nested field corresponding to the index. It +// allocates pointer to struct field if it is nil and settable. +// reflect.Value.FieldByIndex() panics at nil pointer to unexported anonymous +// field. This function returns error. +func fieldByIndex(v reflect.Value, index []int) (reflect.Value, error) { + for _, i := range index { + if v.Kind() == reflect.Ptr && v.Type().Elem().Kind() == reflect.Struct { + if v.IsNil() { + if !v.CanSet() { + return reflect.Value{}, errors.New("cbor: cannot set embedded pointer to unexported struct: " + v.Type().String()) + } + v.Set(reflect.New(v.Type().Elem())) + } + v = v.Elem() + } + v = v.Field(i) + } + return v, nil +} diff --git a/vendor/github.com/fxamacker/cbor/v2/doc.go b/vendor/github.com/fxamacker/cbor/v2/doc.go new file mode 100644 index 0000000000000..fbb65a5aa9126 --- /dev/null +++ b/vendor/github.com/fxamacker/cbor/v2/doc.go @@ -0,0 +1,109 @@ +// Copyright (c) Faye Amacker. All rights reserved. +// Licensed under the MIT License. See LICENSE in the project root for license information. + +/* +Package cbor is a fast & safe CBOR encoder & decoder (RFC 7049) with a +standard API + toarray & keyasint struct tags, CBOR tags, float64->32->16, +CTAP2 & Canonical CBOR, duplicate map key options, and is customizable via +simple API. + +CBOR encoding options allow "preferred serialization" by encoding integers and floats +to their smallest forms (like float16) when values fit. + +Struct tags like "keyasint", "toarray" and "omitempty" makes CBOR data smaller. + +For example, "toarray" makes struct fields encode to array elements. And "keyasint" +makes struct fields encode to elements of CBOR map with int keys. + +Basics + +Function signatures identical to encoding/json include: + + Marshal, Unmarshal, NewEncoder, NewDecoder, encoder.Encode, decoder.Decode. + +Codec functions are available at package-level (using defaults) or by creating modes +from options at runtime. + +"Mode" in this API means definite way of encoding or decoding. Specifically, EncMode or DecMode. + +EncMode and DecMode interfaces are created from EncOptions or DecOptions structs. For example, + + em := cbor.EncOptions{...}.EncMode() + em := cbor.CanonicalEncOptions().EncMode() + em := cbor.CTAP2EncOptions().EncMode() + +Modes use immutable options to avoid side-effects and simplify concurrency. Behavior of modes +won't accidentally change at runtime after they're created. + +Modes are intended to be reused and are safe for concurrent use. + +EncMode and DecMode Interfaces + + // EncMode interface uses immutable options and is safe for concurrent use. + type EncMode interface { + Marshal(v interface{}) ([]byte, error) + NewEncoder(w io.Writer) *Encoder + EncOptions() EncOptions // returns copy of options + } + + // DecMode interface uses immutable options and is safe for concurrent use. + type DecMode interface { + Unmarshal(data []byte, v interface{}) error + NewDecoder(r io.Reader) *Decoder + DecOptions() DecOptions // returns copy of options + } + +Using Default Encoding Mode + + b, err := cbor.Marshal(v) + + encoder := cbor.NewEncoder(w) + err = encoder.Encode(v) + +Using Default Decoding Mode + + err := cbor.Unmarshal(b, &v) + + decoder := cbor.NewDecoder(r) + err = decoder.Decode(&v) + +Creating and Using Encoding Modes + + // Create EncOptions using either struct literal or a function. + opts := cbor.CanonicalEncOptions() + + // If needed, modify encoding options + opts.Time = cbor.TimeUnix + + // Create reusable EncMode interface with immutable options, safe for concurrent use. + em, err := opts.EncMode() + + // Use EncMode like encoding/json, with same function signatures. + b, err := em.Marshal(v) + // or + encoder := em.NewEncoder(w) + err := encoder.Encode(v) + +Default Options + +Default encoding options are listed at https://github.com/fxamacker/cbor#api + +Struct Tags + +Struct tags like `cbor:"name,omitempty"` and `json:"name,omitempty"` work as expected. +If both struct tags are specified then `cbor` is used. + +Struct tags like "keyasint", "toarray", and "omitempty" make it easy to use +very compact formats like COSE and CWT (CBOR Web Tokens) with structs. + +For example, "toarray" makes struct fields encode to array elements. And "keyasint" +makes struct fields encode to elements of CBOR map with int keys. + +https://raw.githubusercontent.com/fxamacker/images/master/cbor/v2.0.0/cbor_easy_api.png + +Tests and Fuzzing + +Over 375 tests are included in this package. Cover-guided fuzzing is handled by a separate package: +fxamacker/cbor-fuzz. +*/ +package cbor diff --git a/vendor/github.com/fxamacker/cbor/v2/encode.go b/vendor/github.com/fxamacker/cbor/v2/encode.go new file mode 100644 index 0000000000000..de52b54598533 --- /dev/null +++ b/vendor/github.com/fxamacker/cbor/v2/encode.go @@ -0,0 +1,1292 @@ +// Copyright (c) Faye Amacker. All rights reserved. +// Licensed under the MIT License. See LICENSE in the project root for license information. + +package cbor + +import ( + "bytes" + "encoding" + "encoding/binary" + "errors" + "io" + "math" + "reflect" + "sort" + "strconv" + "sync" + "time" + + "github.com/x448/float16" +) + +// Marshal returns the CBOR encoding of v using the default encoding options. +// +// Marshal uses the following type-dependent default encodings: +// +// Boolean values encode as CBOR booleans (type 7). +// +// Positive integer values encode as CBOR positive integers (type 0). +// +// Negative integer values encode as CBOR negative integers (type 1). +// +// Floating point values encode as CBOR floating points (type 7). +// +// String values encode as CBOR text strings (type 3). +// +// []byte values encode as CBOR byte strings (type 2). +// +// Array and slice values encode as CBOR arrays (type 4). +// +// Map values encode as CBOR maps (type 5). +// +// Struct values encode as CBOR maps (type 5). Each exported struct field +// becomes a pair with field name encoded as CBOR text string (type 3) and +// field value encoded based on its type. +// +// Pointer values encode as the value pointed to. +// +// Nil slice/map/pointer/interface values encode as CBOR nulls (type 7). +// +// time.Time values encode as text strings specified in RFC3339 when +// EncOptions.TimeRFC3339 is true; otherwise, time.Time values encode as +// numerical representation of seconds since January 1, 1970 UTC. +// +// If value implements the Marshaler interface, Marshal calls its MarshalCBOR +// method. If value implements encoding.BinaryMarshaler instead, Marhsal +// calls its MarshalBinary method and encode it as CBOR byte string. +// +// Marshal supports format string stored under the "cbor" key in the struct +// field's tag. CBOR format string can specify the name of the field, "omitempty" +// and "keyasint" options, and special case "-" for field omission. If "cbor" +// key is absent, Marshal uses "json" key. +// +// Struct field name is treated as integer if it has "keyasint" option in +// its format string. The format string must specify an integer as its +// field name. +// +// Special struct field "_" is used to specify struct level options, such as +// "toarray". "toarray" option enables Go struct to be encoded as CBOR array. +// "omitempty" is disabled by "toarray" to ensure that the same number +// of elements are encoded every time. +// +// Anonymous struct fields are usually marshaled as if their exported fields +// were fields in the outer struct. Marshal follows the same struct fields +// visibility rules used by JSON encoding package. An anonymous struct field +// with a name given in its CBOR tag is treated as having that name, rather +// than being anonymous. An anonymous struct field of interface type is +// treated the same as having that type as its name, rather than being anonymous. +// +// Interface values encode as the value contained in the interface. A nil +// interface value encodes as the null CBOR value. +// +// Channel, complex, and functon values cannot be encoded in CBOR. Attempting +// to encode such a value causes Marshal to return an UnsupportedTypeError. +func Marshal(v interface{}) ([]byte, error) { + return defaultEncMode.Marshal(v) +} + +// Marshaler is the interface implemented by types that can marshal themselves +// into valid CBOR. +type Marshaler interface { + MarshalCBOR() ([]byte, error) +} + +// UnsupportedTypeError is returned by Marshal when attempting to encode an +// unsupported value type. +type UnsupportedTypeError struct { + Type reflect.Type +} + +func (e *UnsupportedTypeError) Error() string { + return "cbor: unsupported type: " + e.Type.String() +} + +// SortMode identifies supported sorting order. +type SortMode int + +const ( + // SortNone means no sorting. + SortNone SortMode = 0 + + // SortLengthFirst causes map keys or struct fields to be sorted such that: + // - If two keys have different lengths, the shorter one sorts earlier; + // - If two keys have the same length, the one with the lower value in + // (byte-wise) lexical order sorts earlier. + // It is used in "Canonical CBOR" encoding in RFC 7049 3.9. + SortLengthFirst SortMode = 1 + + // SortBytewiseLexical causes map keys or struct fields to be sorted in the + // bytewise lexicographic order of their deterministic CBOR encodings. + // It is used in "CTAP2 Canonical CBOR" and "Core Deterministic Encoding" + // in RFC 7049bis. + SortBytewiseLexical SortMode = 2 + + // SortCanonical is used in "Canonical CBOR" encoding in RFC 7049 3.9. + SortCanonical SortMode = SortLengthFirst + + // SortCTAP2 is used in "CTAP2 Canonical CBOR". + SortCTAP2 SortMode = SortBytewiseLexical + + // SortCoreDeterministic is used in "Core Deterministic Encoding" in RFC 7049bis. + SortCoreDeterministic SortMode = SortBytewiseLexical + + maxSortMode SortMode = 3 +) + +func (sm SortMode) valid() bool { + return sm < maxSortMode +} + +// ShortestFloatMode specifies which floating-point format should +// be used as the shortest possible format for CBOR encoding. +// It is not used for encoding Infinity and NaN values. +type ShortestFloatMode int + +const ( + // ShortestFloatNone makes float values encode without any conversion. + // This is the default for ShortestFloatMode in v1. + // E.g. a float32 in Go will encode to CBOR float32. And + // a float64 in Go will encode to CBOR float64. + ShortestFloatNone ShortestFloatMode = iota + + // ShortestFloat16 specifies float16 as the shortest form that preserves value. + // E.g. if float64 can convert to float32 while preserving value, then + // encoding will also try to convert float32 to float16. So a float64 might + // encode as CBOR float64, float32 or float16 depending on the value. + ShortestFloat16 + + maxShortestFloat +) + +func (sfm ShortestFloatMode) valid() bool { + return sfm < maxShortestFloat +} + +// NaNConvertMode specifies how to encode NaN and overrides ShortestFloatMode. +// ShortestFloatMode is not used for encoding Infinity and NaN values. +type NaNConvertMode int + +const ( + // NaNConvert7e00 always encodes NaN to 0xf97e00 (CBOR float16 = 0x7e00). + NaNConvert7e00 NaNConvertMode = iota + + // NaNConvertNone never modifies or converts NaN to other representations + // (float64 NaN stays float64, etc. even if it can use float16 without losing + // any bits). + NaNConvertNone + + // NaNConvertPreserveSignal converts NaN to the smallest form that preserves + // value (quiet bit + payload) as described in RFC 7049bis Draft 12. + NaNConvertPreserveSignal + + // NaNConvertQuiet always forces quiet bit = 1 and shortest form that preserves + // NaN payload. + NaNConvertQuiet + + maxNaNConvert +) + +func (ncm NaNConvertMode) valid() bool { + return ncm < maxNaNConvert +} + +// InfConvertMode specifies how to encode Infinity and overrides ShortestFloatMode. +// ShortestFloatMode is not used for encoding Infinity and NaN values. +type InfConvertMode int + +const ( + // InfConvertFloat16 always converts Inf to lossless IEEE binary16 (float16). + InfConvertFloat16 InfConvertMode = iota + + // InfConvertNone never converts (used by CTAP2 Canonical CBOR). + InfConvertNone + + maxInfConvert +) + +func (icm InfConvertMode) valid() bool { + return icm < maxInfConvert +} + +// TimeMode specifies how to encode time.Time values. +type TimeMode int + +const ( + // TimeUnix causes time.Time to be encoded as epoch time in integer with second precision. + TimeUnix TimeMode = iota + + // TimeUnixMicro causes time.Time to be encoded as epoch time in float-point rounded to microsecond precision. + TimeUnixMicro + + // TimeUnixDynamic causes time.Time to be encoded as integer if time.Time doesn't have fractional seconds, + // otherwise float-point rounded to microsecond precision. + TimeUnixDynamic + + // TimeRFC3339 causes time.Time to be encoded as RFC3339 formatted string with second precision. + TimeRFC3339 + + // TimeRFC3339Nano causes time.Time to be encoded as RFC3339 formatted string with nanosecond precision. + TimeRFC3339Nano + + maxTimeMode +) + +func (tm TimeMode) valid() bool { + return tm < maxTimeMode +} + +// EncOptions specifies encoding options. +type EncOptions struct { + // Sort specifies sorting order. + Sort SortMode + + // ShortestFloat specifies the shortest floating-point encoding that preserves + // the value being encoded. + ShortestFloat ShortestFloatMode + + // NaNConvert specifies how to encode NaN and it overrides ShortestFloatMode. + NaNConvert NaNConvertMode + + // InfConvert specifies how to encode Inf and it overrides ShortestFloatMode. + InfConvert InfConvertMode + + // Time specifies how to encode time.Time. + Time TimeMode + + // TimeTag allows time.Time to be encoded with a tag number. + // RFC3339 format gets tag number 0, and numeric epoch time tag number 1. + TimeTag EncTagMode + + // IndefLength specifies whether to allow indefinite length CBOR items. + IndefLength IndefLengthMode + + // TagsMd specifies whether to allow CBOR tags (major type 6). + TagsMd TagsMode +} + +// CanonicalEncOptions returns EncOptions for "Canonical CBOR" encoding, +// defined in RFC 7049 Section 3.9 with the following rules: +// +// 1. "Integers must be as small as possible." +// 2. "The expression of lengths in major types 2 through 5 must be as short as possible." +// 3. The keys in every map must be sorted in length-first sorting order. +// See SortLengthFirst for details. +// 4. "Indefinite-length items must be made into definite-length items." +// 5. "If a protocol allows for IEEE floats, then additional canonicalization rules might +// need to be added. One example rule might be to have all floats start as a 64-bit +// float, then do a test conversion to a 32-bit float; if the result is the same numeric +// value, use the shorter value and repeat the process with a test conversion to a +// 16-bit float. (This rule selects 16-bit float for positive and negative Infinity +// as well.) Also, there are many representations for NaN. If NaN is an allowed value, +// it must always be represented as 0xf97e00." +// +func CanonicalEncOptions() EncOptions { + return EncOptions{ + Sort: SortCanonical, + ShortestFloat: ShortestFloat16, + NaNConvert: NaNConvert7e00, + InfConvert: InfConvertFloat16, + IndefLength: IndefLengthForbidden, + } +} + +// CTAP2EncOptions returns EncOptions for "CTAP2 Canonical CBOR" encoding, +// defined in CTAP specification, with the following rules: +// +// 1. "Integers must be encoded as small as possible." +// 2. "The representations of any floating-point values are not changed." +// 3. "The expression of lengths in major types 2 through 5 must be as short as possible." +// 4. "Indefinite-length items must be made into definite-length items."" +// 5. The keys in every map must be sorted in bytewise lexicographic order. +// See SortBytewiseLexical for details. +// 6. "Tags as defined in Section 2.4 in [RFC7049] MUST NOT be present." +// +func CTAP2EncOptions() EncOptions { + return EncOptions{ + Sort: SortCTAP2, + ShortestFloat: ShortestFloatNone, + NaNConvert: NaNConvertNone, + InfConvert: InfConvertNone, + IndefLength: IndefLengthForbidden, + TagsMd: TagsForbidden, + } +} + +// CoreDetEncOptions returns EncOptions for "Core Deterministic" encoding, +// defined in RFC 7049bis with the following rules: +// +// 1. "Preferred serialization MUST be used. In particular, this means that arguments +// (see Section 3) for integers, lengths in major types 2 through 5, and tags MUST +// be as short as possible" +// "Floating point values also MUST use the shortest form that preserves the value" +// 2. "Indefinite-length items MUST NOT appear." +// 3. "The keys in every map MUST be sorted in the bytewise lexicographic order of +// their deterministic encodings." +// +func CoreDetEncOptions() EncOptions { + return EncOptions{ + Sort: SortCoreDeterministic, + ShortestFloat: ShortestFloat16, + NaNConvert: NaNConvert7e00, + InfConvert: InfConvertFloat16, + IndefLength: IndefLengthForbidden, + } +} + +// PreferredUnsortedEncOptions returns EncOptions for "Preferred Serialization" encoding, +// defined in RFC 7049bis with the following rules: +// +// 1. "The preferred serialization always uses the shortest form of representing the argument +// (Section 3);" +// 2. "it also uses the shortest floating-point encoding that preserves the value being +// encoded (see Section 5.5)." +// "The preferred encoding for a floating-point value is the shortest floating-point encoding +// that preserves its value, e.g., 0xf94580 for the number 5.5, and 0xfa45ad9c00 for the +// number 5555.5, unless the CBOR-based protocol specifically excludes the use of the shorter +// floating-point encodings. For NaN values, a shorter encoding is preferred if zero-padding +// the shorter significand towards the right reconstitutes the original NaN value (for many +// applications, the single NaN encoding 0xf97e00 will suffice)." +// 3. "Definite length encoding is preferred whenever the length is known at the time the +// serialization of the item starts." +// +func PreferredUnsortedEncOptions() EncOptions { + return EncOptions{ + Sort: SortNone, + ShortestFloat: ShortestFloat16, + NaNConvert: NaNConvert7e00, + InfConvert: InfConvertFloat16, + } +} + +// EncMode returns EncMode with immutable options and no tags (safe for concurrency). +func (opts EncOptions) EncMode() (EncMode, error) { + return opts.encMode() +} + +// EncModeWithTags returns EncMode with options and tags that are both immutable (safe for concurrency). +func (opts EncOptions) EncModeWithTags(tags TagSet) (EncMode, error) { + if opts.TagsMd == TagsForbidden { + return nil, errors.New("cbor: cannot create EncMode with TagSet when TagsMd is TagsForbidden") + } + if tags == nil { + return nil, errors.New("cbor: cannot create EncMode with nil value as TagSet") + } + em, err := opts.encMode() + if err != nil { + return nil, err + } + // Copy tags + ts := tagSet(make(map[reflect.Type]*tagItem)) + syncTags := tags.(*syncTagSet) + syncTags.RLock() + for contentType, tag := range syncTags.t { + if tag.opts.EncTag != EncTagNone { + ts[contentType] = tag + } + } + syncTags.RUnlock() + if len(ts) > 0 { + em.tags = ts + } + return em, nil +} + +// EncModeWithSharedTags returns EncMode with immutable options and mutable shared tags (safe for concurrency). +func (opts EncOptions) EncModeWithSharedTags(tags TagSet) (EncMode, error) { + if opts.TagsMd == TagsForbidden { + return nil, errors.New("cbor: cannot create EncMode with TagSet when TagsMd is TagsForbidden") + } + if tags == nil { + return nil, errors.New("cbor: cannot create EncMode with nil value as TagSet") + } + em, err := opts.encMode() + if err != nil { + return nil, err + } + em.tags = tags + return em, nil +} + +func (opts EncOptions) encMode() (*encMode, error) { + if !opts.Sort.valid() { + return nil, errors.New("cbor: invalid SortMode " + strconv.Itoa(int(opts.Sort))) + } + if !opts.ShortestFloat.valid() { + return nil, errors.New("cbor: invalid ShortestFloatMode " + strconv.Itoa(int(opts.ShortestFloat))) + } + if !opts.NaNConvert.valid() { + return nil, errors.New("cbor: invalid NaNConvertMode " + strconv.Itoa(int(opts.NaNConvert))) + } + if !opts.InfConvert.valid() { + return nil, errors.New("cbor: invalid InfConvertMode " + strconv.Itoa(int(opts.InfConvert))) + } + if !opts.Time.valid() { + return nil, errors.New("cbor: invalid TimeMode " + strconv.Itoa(int(opts.Time))) + } + if !opts.TimeTag.valid() { + return nil, errors.New("cbor: invalid TimeTag " + strconv.Itoa(int(opts.TimeTag))) + } + if !opts.IndefLength.valid() { + return nil, errors.New("cbor: invalid IndefLength " + strconv.Itoa(int(opts.IndefLength))) + } + if !opts.TagsMd.valid() { + return nil, errors.New("cbor: invalid TagsMd " + strconv.Itoa(int(opts.TagsMd))) + } + if opts.TagsMd == TagsForbidden && opts.TimeTag == EncTagRequired { + return nil, errors.New("cbor: cannot set TagsMd to TagsForbidden when TimeTag is EncTagRequired") + } + em := encMode{ + sort: opts.Sort, + shortestFloat: opts.ShortestFloat, + nanConvert: opts.NaNConvert, + infConvert: opts.InfConvert, + time: opts.Time, + timeTag: opts.TimeTag, + indefLength: opts.IndefLength, + tagsMd: opts.TagsMd, + } + return &em, nil +} + +// EncMode is the main interface for CBOR encoding. +type EncMode interface { + Marshal(v interface{}) ([]byte, error) + NewEncoder(w io.Writer) *Encoder + EncOptions() EncOptions +} + +type encMode struct { + tags tagProvider + sort SortMode + shortestFloat ShortestFloatMode + nanConvert NaNConvertMode + infConvert InfConvertMode + time TimeMode + timeTag EncTagMode + indefLength IndefLengthMode + tagsMd TagsMode +} + +var defaultEncMode = &encMode{} + +// EncOptions returns user specified options used to create this EncMode. +func (em *encMode) EncOptions() EncOptions { + return EncOptions{ + Sort: em.sort, + ShortestFloat: em.shortestFloat, + NaNConvert: em.nanConvert, + InfConvert: em.infConvert, + Time: em.time, + TimeTag: em.timeTag, + IndefLength: em.indefLength, + TagsMd: em.tagsMd, + } +} + +func (em *encMode) encTagBytes(t reflect.Type) []byte { + if em.tags != nil { + if tagItem := em.tags.get(t); tagItem != nil { + return tagItem.cborTagNum + } + } + return nil +} + +// Marshal returns the CBOR encoding of v using em encMode. +// +// See the documentation for Marshal for details. +func (em *encMode) Marshal(v interface{}) ([]byte, error) { + e := getEncodeState() + + if err := encode(e, em, reflect.ValueOf(v)); err != nil { + putEncodeState(e) + return nil, err + } + + buf := make([]byte, e.Len()) + copy(buf, e.Bytes()) + + putEncodeState(e) + return buf, nil +} + +// NewEncoder returns a new encoder that writes to w using em EncMode. +func (em *encMode) NewEncoder(w io.Writer) *Encoder { + return &Encoder{w: w, em: em, e: getEncodeState()} +} + +// An encodeState encodes CBOR into a bytes.Buffer. +type encodeState struct { + bytes.Buffer + scratch [16]byte +} + +// encodeStatePool caches unused encodeState objects for later reuse. +var encodeStatePool = sync.Pool{ + New: func() interface{} { + e := new(encodeState) + e.Grow(32) // TODO: make this configurable + return e + }, +} + +func getEncodeState() *encodeState { + return encodeStatePool.Get().(*encodeState) +} + +// putEncodeState returns e to encodeStatePool. +func putEncodeState(e *encodeState) { + e.Reset() + encodeStatePool.Put(e) +} + +type encodeFunc func(e *encodeState, em *encMode, v reflect.Value) error + +var ( + cborFalse = []byte{0xf4} + cborTrue = []byte{0xf5} + cborNil = []byte{0xf6} + cborNaN = []byte{0xf9, 0x7e, 0x00} + cborPositiveInfinity = []byte{0xf9, 0x7c, 0x00} + cborNegativeInfinity = []byte{0xf9, 0xfc, 0x00} +) + +func encode(e *encodeState, em *encMode, v reflect.Value) error { + if !v.IsValid() { + // v is zero value + e.Write(cborNil) + return nil + } + vt := v.Type() + f := getEncodeFunc(vt) + if f == nil { + return &UnsupportedTypeError{vt} + } + + return f(e, em, v) +} + +func encodeBool(e *encodeState, em *encMode, v reflect.Value) error { + if b := em.encTagBytes(v.Type()); b != nil { + e.Write(b) + } + b := cborFalse + if v.Bool() { + b = cborTrue + } + e.Write(b) + return nil +} + +func encodeInt(e *encodeState, em *encMode, v reflect.Value) error { + if b := em.encTagBytes(v.Type()); b != nil { + e.Write(b) + } + i := v.Int() + if i >= 0 { + encodeHead(e, byte(cborTypePositiveInt), uint64(i)) + return nil + } + i = i*(-1) - 1 + encodeHead(e, byte(cborTypeNegativeInt), uint64(i)) + return nil +} + +func encodeUint(e *encodeState, em *encMode, v reflect.Value) error { + if b := em.encTagBytes(v.Type()); b != nil { + e.Write(b) + } + encodeHead(e, byte(cborTypePositiveInt), v.Uint()) + return nil +} + +func encodeFloat(e *encodeState, em *encMode, v reflect.Value) error { + if b := em.encTagBytes(v.Type()); b != nil { + e.Write(b) + } + f64 := v.Float() + if math.IsNaN(f64) { + return encodeNaN(e, em, v) + } + if math.IsInf(f64, 0) { + return encodeInf(e, em, v) + } + fopt := em.shortestFloat + if v.Kind() == reflect.Float64 && (fopt == ShortestFloatNone || cannotFitFloat32(f64)) { + // Encode float64 + // Don't use encodeFloat64() because it cannot be inlined. + e.scratch[0] = byte(cborTypePrimitives) | byte(27) + binary.BigEndian.PutUint64(e.scratch[1:], math.Float64bits(f64)) + e.Write(e.scratch[:9]) + return nil + } + + f32 := float32(f64) + if fopt == ShortestFloat16 { + var f16 float16.Float16 + p := float16.PrecisionFromfloat32(f32) + if p == float16.PrecisionExact { + // Roundtrip float32->float16->float32 test isn't needed. + f16 = float16.Fromfloat32(f32) + } else if p == float16.PrecisionUnknown { + // Try roundtrip float32->float16->float32 to determine if float32 can fit into float16. + f16 = float16.Fromfloat32(f32) + if f16.Float32() == f32 { + p = float16.PrecisionExact + } + } + if p == float16.PrecisionExact { + // Encode float16 + // Don't use encodeFloat16() because it cannot be inlined. + e.scratch[0] = byte(cborTypePrimitives) | byte(25) + binary.BigEndian.PutUint16(e.scratch[1:], uint16(f16)) + e.Write(e.scratch[:3]) + return nil + } + } + + // Encode float32 + // Don't use encodeFloat32() because it cannot be inlined. + e.scratch[0] = byte(cborTypePrimitives) | byte(26) + binary.BigEndian.PutUint32(e.scratch[1:], math.Float32bits(f32)) + e.Write(e.scratch[:5]) + return nil +} + +func encodeInf(e *encodeState, em *encMode, v reflect.Value) error { + f64 := v.Float() + if em.infConvert == InfConvertFloat16 { + if f64 > 0 { + e.Write(cborPositiveInfinity) + } else { + e.Write(cborNegativeInfinity) + } + return nil + } + if v.Kind() == reflect.Float64 { + return encodeFloat64(e, f64) + } + return encodeFloat32(e, float32(f64)) +} + +func encodeNaN(e *encodeState, em *encMode, v reflect.Value) error { + switch em.nanConvert { + case NaNConvert7e00: + e.Write(cborNaN) + return nil + + case NaNConvertNone: + if v.Kind() == reflect.Float64 { + return encodeFloat64(e, v.Float()) + } + f32 := float32NaNFromReflectValue(v) + return encodeFloat32(e, f32) + + default: // NaNConvertPreserveSignal, NaNConvertQuiet + if v.Kind() == reflect.Float64 { + f64 := v.Float() + f64bits := math.Float64bits(f64) + if em.nanConvert == NaNConvertQuiet && f64bits&(1<<51) == 0 { + f64bits |= 1 << 51 // Set quiet bit = 1 + f64 = math.Float64frombits(f64bits) + } + // The lower 29 bits are dropped when converting from float64 to float32. + if f64bits&0x1fffffff != 0 { + // Encode NaN as float64 because dropped coef bits from float64 to float32 are not all 0s. + return encodeFloat64(e, f64) + } + // Create float32 from float64 manually because float32(f64) always turns on NaN's quiet bits. + sign := uint32(f64bits>>32) & (1 << 31) + exp := uint32(0x7f800000) + coef := uint32((f64bits & 0xfffffffffffff) >> 29) + f32bits := sign | exp | coef + f32 := math.Float32frombits(f32bits) + // The lower 13 bits are dropped when converting from float32 to float16. + if f32bits&0x1fff != 0 { + // Encode NaN as float32 because dropped coef bits from float32 to float16 are not all 0s. + return encodeFloat32(e, f32) + } + // Encode NaN as float16 + f16, _ := float16.FromNaN32ps(f32) // Ignore err because it only returns error when f32 is not a NaN. + return encodeFloat16(e, f16) + } + + f32 := float32NaNFromReflectValue(v) + f32bits := math.Float32bits(f32) + if em.nanConvert == NaNConvertQuiet && f32bits&(1<<22) == 0 { + f32bits |= 1 << 22 // Set quiet bit = 1 + f32 = math.Float32frombits(f32bits) + } + // The lower 13 bits are dropped coef bits when converting from float32 to float16. + if f32bits&0x1fff != 0 { + // Encode NaN as float32 because dropped coef bits from float32 to float16 are not all 0s. + return encodeFloat32(e, f32) + } + f16, _ := float16.FromNaN32ps(f32) // Ignore err because it only returns error when f32 is not a NaN. + return encodeFloat16(e, f16) + } +} + +func encodeFloat16(e *encodeState, f16 float16.Float16) error { + e.scratch[0] = byte(cborTypePrimitives) | byte(25) + binary.BigEndian.PutUint16(e.scratch[1:], uint16(f16)) + e.Write(e.scratch[:3]) + return nil +} + +func encodeFloat32(e *encodeState, f32 float32) error { + e.scratch[0] = byte(cborTypePrimitives) | byte(26) + binary.BigEndian.PutUint32(e.scratch[1:], math.Float32bits(f32)) + e.Write(e.scratch[:5]) + return nil +} + +func encodeFloat64(e *encodeState, f64 float64) error { + e.scratch[0] = byte(cborTypePrimitives) | byte(27) + binary.BigEndian.PutUint64(e.scratch[1:], math.Float64bits(f64)) + e.Write(e.scratch[:9]) + return nil +} + +func encodeByteString(e *encodeState, em *encMode, v reflect.Value) error { + vk := v.Kind() + if vk == reflect.Slice && v.IsNil() { + e.Write(cborNil) + return nil + } + if b := em.encTagBytes(v.Type()); b != nil { + e.Write(b) + } + slen := v.Len() + if slen == 0 { + return e.WriteByte(byte(cborTypeByteString)) + } + encodeHead(e, byte(cborTypeByteString), uint64(slen)) + if vk == reflect.Array { + for i := 0; i < slen; i++ { + e.WriteByte(byte(v.Index(i).Uint())) + } + return nil + } + e.Write(v.Bytes()) + return nil +} + +func encodeString(e *encodeState, em *encMode, v reflect.Value) error { + if b := em.encTagBytes(v.Type()); b != nil { + e.Write(b) + } + s := v.String() + encodeHead(e, byte(cborTypeTextString), uint64(len(s))) + e.WriteString(s) + return nil +} + +// Assuming that arrayEncoder.f != nil +type arrayEncoder struct { + f encodeFunc +} + +func (ae arrayEncoder) encodeArray(e *encodeState, em *encMode, v reflect.Value) error { + if v.Kind() == reflect.Slice && v.IsNil() { + e.Write(cborNil) + return nil + } + if b := em.encTagBytes(v.Type()); b != nil { + e.Write(b) + } + alen := v.Len() + if alen == 0 { + return e.WriteByte(byte(cborTypeArray)) + } + encodeHead(e, byte(cborTypeArray), uint64(alen)) + for i := 0; i < alen; i++ { + if err := ae.f(e, em, v.Index(i)); err != nil { + return err + } + } + return nil +} + +// Assuming that arrayEncoder.kf and arrayEncoder.ef are not nil +type mapEncoder struct { + kf, ef encodeFunc +} + +func (me mapEncoder) encodeMap(e *encodeState, em *encMode, v reflect.Value) error { + if v.IsNil() { + e.Write(cborNil) + return nil + } + if b := em.encTagBytes(v.Type()); b != nil { + e.Write(b) + } + mlen := v.Len() + if mlen == 0 { + return e.WriteByte(byte(cborTypeMap)) + } + if em.sort != SortNone { + return me.encodeMapCanonical(e, em, v) + } + encodeHead(e, byte(cborTypeMap), uint64(mlen)) + iter := v.MapRange() + for iter.Next() { + if err := me.kf(e, em, iter.Key()); err != nil { + return err + } + if err := me.ef(e, em, iter.Value()); err != nil { + return err + } + } + return nil +} + +type keyValue struct { + keyCBORData, keyValueCBORData []byte + keyLen, keyValueLen int +} + +type bytewiseKeyValueSorter struct { + kvs []keyValue +} + +func (x *bytewiseKeyValueSorter) Len() int { + return len(x.kvs) +} + +func (x *bytewiseKeyValueSorter) Swap(i, j int) { + x.kvs[i], x.kvs[j] = x.kvs[j], x.kvs[i] +} + +func (x *bytewiseKeyValueSorter) Less(i, j int) bool { + return bytes.Compare(x.kvs[i].keyCBORData, x.kvs[j].keyCBORData) <= 0 +} + +type lengthFirstKeyValueSorter struct { + kvs []keyValue +} + +func (x *lengthFirstKeyValueSorter) Len() int { + return len(x.kvs) +} + +func (x *lengthFirstKeyValueSorter) Swap(i, j int) { + x.kvs[i], x.kvs[j] = x.kvs[j], x.kvs[i] +} + +func (x *lengthFirstKeyValueSorter) Less(i, j int) bool { + if len(x.kvs[i].keyCBORData) != len(x.kvs[j].keyCBORData) { + return len(x.kvs[i].keyCBORData) < len(x.kvs[j].keyCBORData) + } + return bytes.Compare(x.kvs[i].keyCBORData, x.kvs[j].keyCBORData) <= 0 +} + +var keyValuePool = sync.Pool{} + +func getKeyValues(length int) *[]keyValue { + v := keyValuePool.Get() + if v == nil { + y := make([]keyValue, length) + return &y + } + x := v.(*[]keyValue) + if cap(*x) >= length { + *x = (*x)[:length] + return x + } + // []keyValue from the pool does not have enough capacity. + // Return it back to the pool and create a new one. + keyValuePool.Put(x) + y := make([]keyValue, length) + return &y +} + +func putKeyValues(x *[]keyValue) { + *x = (*x)[:0] + keyValuePool.Put(x) +} + +func (me mapEncoder) encodeMapCanonical(e *encodeState, em *encMode, v reflect.Value) error { + kve := getEncodeState() // accumulated cbor encoded key-values + kvsp := getKeyValues(v.Len()) // for sorting keys + kvs := *kvsp + iter := v.MapRange() + for i := 0; iter.Next(); i++ { + off := kve.Len() + if err := me.kf(kve, em, iter.Key()); err != nil { + putEncodeState(kve) + putKeyValues(kvsp) + return err + } + n1 := kve.Len() - off + if err := me.ef(kve, em, iter.Value()); err != nil { + putEncodeState(kve) + putKeyValues(kvsp) + return err + } + n2 := kve.Len() - off + // Save key and keyvalue length to create slice later. + kvs[i] = keyValue{keyLen: n1, keyValueLen: n2} + } + + b := kve.Bytes() + for i, off := 0, 0; i < len(kvs); i++ { + kvs[i].keyCBORData = b[off : off+kvs[i].keyLen] + kvs[i].keyValueCBORData = b[off : off+kvs[i].keyValueLen] + off += kvs[i].keyValueLen + } + + if em.sort == SortBytewiseLexical { + sort.Sort(&bytewiseKeyValueSorter{kvs}) + } else { + sort.Sort(&lengthFirstKeyValueSorter{kvs}) + } + + encodeHead(e, byte(cborTypeMap), uint64(len(kvs))) + for i := 0; i < len(kvs); i++ { + e.Write(kvs[i].keyValueCBORData) + } + + putEncodeState(kve) + putKeyValues(kvsp) + return nil +} + +func encodeStructToArray(e *encodeState, em *encMode, v reflect.Value, flds fields) error { + encodeHead(e, byte(cborTypeArray), uint64(len(flds))) +FieldLoop: + for i := 0; i < len(flds); i++ { + f := flds[i] + fv := v + for k, n := range f.idx { + if k > 0 { + if fv.Kind() == reflect.Ptr && fv.Type().Elem().Kind() == reflect.Struct { + if fv.IsNil() { + // Write nil for null pointer to embedded struct + e.Write(cborNil) + continue FieldLoop + } + fv = fv.Elem() + } + } + fv = fv.Field(n) + } + if err := f.ef(e, em, fv); err != nil { + return err + } + } + return nil +} + +func encodeFixedLengthStruct(e *encodeState, em *encMode, v reflect.Value, flds fields) error { + encodeHead(e, byte(cborTypeMap), uint64(len(flds))) + + for i := 0; i < len(flds); i++ { + f := flds[i] + e.Write(f.cborName) + + fv := v.Field(f.idx[0]) + if err := f.ef(e, em, fv); err != nil { + return err + } + } + + return nil +} + +func encodeStruct(e *encodeState, em *encMode, v reflect.Value) error { + vt := v.Type() + structType := getEncodingStructType(vt) + if structType.err != nil { + return structType.err + } + + if b := em.encTagBytes(vt); b != nil { + e.Write(b) + } + + if structType.toArray { + return encodeStructToArray(e, em, v, structType.fields) + } + + flds := structType.getFields(em) + + if !structType.hasAnonymousField && !structType.omitEmpty { + return encodeFixedLengthStruct(e, em, v, flds) + } + + kve := getEncodeState() // encode key-value pairs based on struct field tag options + kvcount := 0 +FieldLoop: + for i := 0; i < len(flds); i++ { + f := flds[i] + fv := v + for k, n := range f.idx { + if k > 0 { + if fv.Kind() == reflect.Ptr && fv.Type().Elem().Kind() == reflect.Struct { + if fv.IsNil() { + // Null pointer to embedded struct + continue FieldLoop + } + fv = fv.Elem() + } + } + fv = fv.Field(n) + } + if f.omitEmpty && isEmptyValue(fv) { + continue + } + + kve.Write(f.cborName) + + if err := f.ef(kve, em, fv); err != nil { + putEncodeState(kve) + return err + } + kvcount++ + } + + encodeHead(e, byte(cborTypeMap), uint64(kvcount)) + e.Write(kve.Bytes()) + + putEncodeState(kve) + return nil +} + +func encodeIntf(e *encodeState, em *encMode, v reflect.Value) error { + if v.IsNil() { + e.Write(cborNil) + return nil + } + return encode(e, em, v.Elem()) +} + +func encodeTime(e *encodeState, em *encMode, v reflect.Value) error { + t := v.Interface().(time.Time) + if t.IsZero() { + e.Write(cborNil) // Even if tag is required, encode as CBOR null. + return nil + } + if em.timeTag == EncTagRequired { + tagNumber := 1 + if em.time == TimeRFC3339 || em.time == TimeRFC3339Nano { + tagNumber = 0 + } + encodeHead(e, byte(cborTypeTag), uint64(tagNumber)) + } + switch em.time { + case TimeUnix: + secs := t.Unix() + return encodeInt(e, em, reflect.ValueOf(secs)) + case TimeUnixMicro: + t = t.UTC().Round(time.Microsecond) + f := float64(t.UnixNano()) / 1e9 + return encodeFloat(e, em, reflect.ValueOf(f)) + case TimeUnixDynamic: + t = t.UTC().Round(time.Microsecond) + secs, nsecs := t.Unix(), uint64(t.Nanosecond()) + if nsecs == 0 { + return encodeInt(e, em, reflect.ValueOf(secs)) + } + f := float64(secs) + float64(nsecs)/1e9 + return encodeFloat(e, em, reflect.ValueOf(f)) + case TimeRFC3339: + s := t.Format(time.RFC3339) + return encodeString(e, em, reflect.ValueOf(s)) + default: // TimeRFC3339Nano + s := t.Format(time.RFC3339Nano) + return encodeString(e, em, reflect.ValueOf(s)) + } +} + +func encodeBinaryMarshalerType(e *encodeState, em *encMode, v reflect.Value) error { + vt := v.Type() + m, ok := v.Interface().(encoding.BinaryMarshaler) + if !ok { + pv := reflect.New(vt) + pv.Elem().Set(v) + m = pv.Interface().(encoding.BinaryMarshaler) + } + data, err := m.MarshalBinary() + if err != nil { + return err + } + if b := em.encTagBytes(vt); b != nil { + e.Write(b) + } + encodeHead(e, byte(cborTypeByteString), uint64(len(data))) + e.Write(data) + return nil +} + +func encodeMarshalerType(e *encodeState, em *encMode, v reflect.Value) error { + if em.tagsMd == TagsForbidden && v.Type() == typeRawTag { + return errors.New("cbor: cannot encode cbor.RawTag when TagsMd is TagsForbidden") + } + m, ok := v.Interface().(Marshaler) + if !ok { + pv := reflect.New(v.Type()) + pv.Elem().Set(v) + m = pv.Interface().(Marshaler) + } + data, err := m.MarshalCBOR() + if err != nil { + return err + } + e.Write(data) + return nil +} + +func encodeTag(e *encodeState, em *encMode, v reflect.Value) error { + if em.tagsMd == TagsForbidden { + return errors.New("cbor: cannot encode cbor.Tag when TagsMd is TagsForbidden") + } + + t := v.Interface().(Tag) + + // Marshal tag number + encodeHead(e, byte(cborTypeTag), t.Number) + + // Marshal tag content + if err := encode(e, em, reflect.ValueOf(t.Content)); err != nil { + return err + } + + return nil +} + +func encodeHead(e *encodeState, t byte, n uint64) { + if n <= 23 { + e.WriteByte(t | byte(n)) + return + } + if n <= math.MaxUint8 { + e.scratch[0] = t | byte(24) + e.scratch[1] = byte(n) + e.Write(e.scratch[:2]) + return + } + if n <= math.MaxUint16 { + e.scratch[0] = t | byte(25) + binary.BigEndian.PutUint16(e.scratch[1:], uint16(n)) + e.Write(e.scratch[:3]) + return + } + if n <= math.MaxUint32 { + e.scratch[0] = t | byte(26) + binary.BigEndian.PutUint32(e.scratch[1:], uint32(n)) + e.Write(e.scratch[:5]) + return + } + e.scratch[0] = t | byte(27) + binary.BigEndian.PutUint64(e.scratch[1:], n) + e.Write(e.scratch[:9]) +} + +var ( + typeMarshaler = reflect.TypeOf((*Marshaler)(nil)).Elem() + typeBinaryMarshaler = reflect.TypeOf((*encoding.BinaryMarshaler)(nil)).Elem() +) + +func getEncodeFuncInternal(t reflect.Type) encodeFunc { + k := t.Kind() + if k == reflect.Ptr { + return getEncodeIndirectValueFunc(t) + } + if t == typeTag { + return encodeTag + } + if t == typeTime { + return encodeTime + } + if reflect.PtrTo(t).Implements(typeMarshaler) { + return encodeMarshalerType + } + if reflect.PtrTo(t).Implements(typeBinaryMarshaler) { + return encodeBinaryMarshalerType + } + switch k { + case reflect.Bool: + return encodeBool + case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: + return encodeInt + case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64: + return encodeUint + case reflect.Float32, reflect.Float64: + return encodeFloat + case reflect.String: + return encodeString + case reflect.Slice, reflect.Array: + if t.Elem().Kind() == reflect.Uint8 { + return encodeByteString + } + f := getEncodeFunc(t.Elem()) + if f == nil { + return nil + } + return arrayEncoder{f: f}.encodeArray + case reflect.Map: + kf, ef := getEncodeFunc(t.Key()), getEncodeFunc(t.Elem()) + if kf == nil || ef == nil { + return nil + } + return mapEncoder{kf: kf, ef: ef}.encodeMap + case reflect.Struct: + return encodeStruct + case reflect.Interface: + return encodeIntf + } + return nil +} + +func getEncodeIndirectValueFunc(t reflect.Type) encodeFunc { + for t.Kind() == reflect.Ptr { + t = t.Elem() + } + f := getEncodeFunc(t) + if f == nil { + return nil + } + return func(e *encodeState, em *encMode, v reflect.Value) error { + for v.Kind() == reflect.Ptr && !v.IsNil() { + v = v.Elem() + } + if v.Kind() == reflect.Ptr && v.IsNil() { + e.Write(cborNil) + return nil + } + return f(e, em, v) + } +} + +func isEmptyValue(v reflect.Value) bool { + switch v.Kind() { + case reflect.Array, reflect.Map, reflect.Slice, reflect.String: + return v.Len() == 0 + case reflect.Bool: + return !v.Bool() + case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: + return v.Int() == 0 + case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr: + return v.Uint() == 0 + case reflect.Float32, reflect.Float64: + return v.Float() == 0 + case reflect.Interface, reflect.Ptr: + return v.IsNil() + } + return false +} + +func cannotFitFloat32(f64 float64) bool { + f32 := float32(f64) + return float64(f32) != f64 +} + +// float32NaNFromReflectValue extracts float32 NaN from reflect.Value while preserving NaN's quiet bit. +func float32NaNFromReflectValue(v reflect.Value) float32 { + // Keith Randall's workaround for issue https://github.com/golang/go/issues/36400 + p := reflect.New(v.Type()) + p.Elem().Set(v) + f32 := p.Convert(reflect.TypeOf((*float32)(nil))).Elem().Interface().(float32) + return f32 +} diff --git a/vendor/github.com/fxamacker/cbor/v2/go.mod b/vendor/github.com/fxamacker/cbor/v2/go.mod new file mode 100644 index 0000000000000..49d74dbd92e84 --- /dev/null +++ b/vendor/github.com/fxamacker/cbor/v2/go.mod @@ -0,0 +1,5 @@ +module github.com/fxamacker/cbor/v2 + +go 1.12 + +require github.com/x448/float16 v0.8.4 diff --git a/vendor/github.com/fxamacker/cbor/v2/go.sum b/vendor/github.com/fxamacker/cbor/v2/go.sum new file mode 100644 index 0000000000000..dad8c4259edff --- /dev/null +++ b/vendor/github.com/fxamacker/cbor/v2/go.sum @@ -0,0 +1,2 @@ +github.com/x448/float16 v0.8.4 h1:qLwI1I70+NjRFUR3zs1JPUCgaCXSh3SW62uAKT1mSBM= +github.com/x448/float16 v0.8.4/go.mod h1:14CWIYCyZA/cWjXOioeEpHeN/83MdbZDRQHoFcYsOfg= diff --git a/vendor/github.com/fxamacker/cbor/v2/stream.go b/vendor/github.com/fxamacker/cbor/v2/stream.go new file mode 100644 index 0000000000000..62319333cf784 --- /dev/null +++ b/vendor/github.com/fxamacker/cbor/v2/stream.go @@ -0,0 +1,196 @@ +// Copyright (c) Faye Amacker. All rights reserved. +// Licensed under the MIT License. See LICENSE in the project root for license information. + +package cbor + +import ( + "errors" + "io" + "reflect" +) + +// Decoder reads and decodes CBOR values from an input stream. +type Decoder struct { + r io.Reader + buf []byte + d decodeState + off int // start of unread data in buf + bytesRead int +} + +// NewDecoder returns a new decoder that reads from r using the default decoding options. +func NewDecoder(r io.Reader) *Decoder { + return defaultDecMode.NewDecoder(r) +} + +// Decode reads the next CBOR-encoded value from its input and stores it in +// the value pointed to by v. +func (dec *Decoder) Decode(v interface{}) error { + if len(dec.buf) == dec.off { + if n, err := dec.read(); n == 0 { + return err + } + } + + dec.d.reset(dec.buf[dec.off:]) + err := dec.d.value(v) + dec.off += dec.d.off + dec.bytesRead += dec.d.off + if err != nil { + if err != io.ErrUnexpectedEOF { + return err + } + // Need to read more data. + if n, e := dec.read(); n == 0 { + return e + } + return dec.Decode(v) + } + return nil +} + +// NumBytesRead returns the number of bytes read. +func (dec *Decoder) NumBytesRead() int { + return dec.bytesRead +} + +func (dec *Decoder) read() (int, error) { + // Copy unread data over read data and reset off to 0. + if dec.off > 0 { + n := copy(dec.buf, dec.buf[dec.off:]) + dec.buf = dec.buf[:n] + dec.off = 0 + } + + // Grow buf if needed. + const minRead = 512 + if cap(dec.buf)-len(dec.buf) < minRead { + newBuf := make([]byte, len(dec.buf), 2*cap(dec.buf)+minRead) + copy(newBuf, dec.buf) + dec.buf = newBuf + } + + // Read from reader and reslice buf. + n, err := dec.r.Read(dec.buf[len(dec.buf):cap(dec.buf)]) + dec.buf = dec.buf[0 : len(dec.buf)+n] + return n, err +} + +// Encoder writes CBOR values to an output stream. +type Encoder struct { + w io.Writer + em *encMode + e *encodeState + indefTypes []cborType +} + +// NewEncoder returns a new encoder that writes to w using the default encoding options. +func NewEncoder(w io.Writer) *Encoder { + return defaultEncMode.NewEncoder(w) +} + +// Encode writes the CBOR encoding of v to the stream. +func (enc *Encoder) Encode(v interface{}) error { + if len(enc.indefTypes) > 0 && v != nil { + indefType := enc.indefTypes[len(enc.indefTypes)-1] + if indefType == cborTypeTextString { + k := reflect.TypeOf(v).Kind() + if k != reflect.String { + return errors.New("cbor: cannot encode item type " + k.String() + " for indefinite-length text string") + } + } else if indefType == cborTypeByteString { + t := reflect.TypeOf(v) + k := t.Kind() + if (k != reflect.Array && k != reflect.Slice) || t.Elem().Kind() != reflect.Uint8 { + return errors.New("cbor: cannot encode item type " + k.String() + " for indefinite-length byte string") + } + } + } + + err := encode(enc.e, enc.em, reflect.ValueOf(v)) + if err == nil { + _, err = enc.e.WriteTo(enc.w) + } + enc.e.Reset() + return err +} + +// StartIndefiniteByteString starts byte string encoding of indefinite length. +// Subsequent calls of (*Encoder).Encode() encodes definite length byte strings +// ("chunks") as one continguous string until EndIndefinite is called. +func (enc *Encoder) StartIndefiniteByteString() error { + return enc.startIndefinite(cborTypeByteString) +} + +// StartIndefiniteTextString starts text string encoding of indefinite length. +// Subsequent calls of (*Encoder).Encode() encodes definite length text strings +// ("chunks") as one continguous string until EndIndefinite is called. +func (enc *Encoder) StartIndefiniteTextString() error { + return enc.startIndefinite(cborTypeTextString) +} + +// StartIndefiniteArray starts array encoding of indefinite length. +// Subsequent calls of (*Encoder).Encode() encodes elements of the array +// until EndIndefinite is called. +func (enc *Encoder) StartIndefiniteArray() error { + return enc.startIndefinite(cborTypeArray) +} + +// StartIndefiniteMap starts array encoding of indefinite length. +// Subsequent calls of (*Encoder).Encode() encodes elements of the map +// until EndIndefinite is called. +func (enc *Encoder) StartIndefiniteMap() error { + return enc.startIndefinite(cborTypeMap) +} + +// EndIndefinite closes last opened indefinite length value. +func (enc *Encoder) EndIndefinite() error { + if len(enc.indefTypes) == 0 { + return errors.New("cbor: cannot encode \"break\" code outside indefinite length values") + } + _, err := enc.w.Write([]byte{0xff}) + if err == nil { + enc.indefTypes = enc.indefTypes[:len(enc.indefTypes)-1] + } + return err +} + +var cborIndefHeader = map[cborType][]byte{ + cborTypeByteString: {0x5f}, + cborTypeTextString: {0x7f}, + cborTypeArray: {0x9f}, + cborTypeMap: {0xbf}, +} + +func (enc *Encoder) startIndefinite(typ cborType) error { + if enc.em.indefLength == IndefLengthForbidden { + return &IndefiniteLengthError{typ} + } + _, err := enc.w.Write(cborIndefHeader[typ]) + if err == nil { + enc.indefTypes = append(enc.indefTypes, typ) + } + return err +} + +// RawMessage is a raw encoded CBOR value. It implements Marshaler and +// Unmarshaler interfaces and can be used to delay CBOR decoding or +// precompute a CBOR encoding. +type RawMessage []byte + +// MarshalCBOR returns m as the CBOR encoding of m. +func (m RawMessage) MarshalCBOR() ([]byte, error) { + if len(m) == 0 { + return cborNil, nil + } + return m, nil +} + +// UnmarshalCBOR sets *m to a copy of data. +func (m *RawMessage) UnmarshalCBOR(data []byte) error { + if m == nil { + return errors.New("cbor.RawMessage: UnmarshalCBOR on nil pointer") + } + *m = append((*m)[0:0], data...) + return nil +} diff --git a/vendor/github.com/fxamacker/cbor/v2/structfields.go b/vendor/github.com/fxamacker/cbor/v2/structfields.go new file mode 100644 index 0000000000000..d73b7194625ba --- /dev/null +++ b/vendor/github.com/fxamacker/cbor/v2/structfields.go @@ -0,0 +1,210 @@ +// Copyright (c) Faye Amacker. All rights reserved. +// Licensed under the MIT License. See LICENSE in the project root for license information. + +package cbor + +import ( + "reflect" + "sort" + "strings" +) + +type field struct { + name string + nameAsInt int64 // used to decoder to match field name with CBOR int + cborName []byte + idx []int + typ reflect.Type + ef encodeFunc + typInfo *typeInfo // used to decoder to reuse type info + tagged bool // used to choose dominant field (at the same level tagged fields dominate untagged fields) + omitEmpty bool // used to skip empty field + keyAsInt bool // used to encode/decode field name as int +} + +type fields []*field + +// indexFieldSorter sorts fields by field idx at each level, breaking ties with idx depth. +type indexFieldSorter struct { + fields fields +} + +func (x *indexFieldSorter) Len() int { + return len(x.fields) +} + +func (x *indexFieldSorter) Swap(i, j int) { + x.fields[i], x.fields[j] = x.fields[j], x.fields[i] +} + +func (x *indexFieldSorter) Less(i, j int) bool { + iIdx := x.fields[i].idx + jIdx := x.fields[j].idx + for k, d := range iIdx { + if k >= len(jIdx) { + // fields[j].idx is a subset of fields[i].idx. + return false + } + if d != jIdx[k] { + // fields[i].idx and fields[j].idx are different. + return d < jIdx[k] + } + } + // fields[i].idx is either the same as, or a subset of fields[j].idx. + return true +} + +// nameLevelAndTagFieldSorter sorts fields by field name, idx depth, and presence of tag. +type nameLevelAndTagFieldSorter struct { + fields fields +} + +func (x *nameLevelAndTagFieldSorter) Len() int { + return len(x.fields) +} + +func (x *nameLevelAndTagFieldSorter) Swap(i, j int) { + x.fields[i], x.fields[j] = x.fields[j], x.fields[i] +} + +func (x *nameLevelAndTagFieldSorter) Less(i, j int) bool { + if x.fields[i].name != x.fields[j].name { + return x.fields[i].name < x.fields[j].name + } + if len(x.fields[i].idx) != len(x.fields[j].idx) { + return len(x.fields[i].idx) < len(x.fields[j].idx) + } + if x.fields[i].tagged != x.fields[j].tagged { + return x.fields[i].tagged + } + return i < j // Field i and j have the same name, depth, and tagged status. Nothing else matters. +} + +// getFields returns a list of visible fields of struct type typ following Go +// visibility rules for struct fields. +func getFields(typ reflect.Type) (flds fields, structOptions string) { + // Inspired by typeFields() in stdlib's encoding/json/encode.go. + + var current map[reflect.Type][][]int // key: struct type, value: field index of this struct type at the same level + next := map[reflect.Type][][]int{typ: nil} + visited := map[reflect.Type]bool{} // Inspected struct type at less nested levels. + + for len(next) > 0 { + current, next = next, map[reflect.Type][][]int{} + + for structType, structIdx := range current { + if len(structIdx) > 1 { + continue // Fields of the same embedded struct type at the same level are ignored. + } + + if visited[structType] { + continue + } + visited[structType] = true + + var fieldIdx []int + if len(structIdx) > 0 { + fieldIdx = structIdx[0] + } + + for i := 0; i < structType.NumField(); i++ { + f := structType.Field(i) + ft := f.Type + + if ft.Kind() == reflect.Ptr { + ft = ft.Elem() + } + + exportable := f.PkgPath == "" + if f.Anonymous { + if !exportable && ft.Kind() != reflect.Struct { + // Nonexportable anonymous fields of non-struct type are ignored. + continue + } + // Nonexportable anonymous field of struct type can contain exportable fields for serialization. + } else if !exportable { + // Get special field "_" struct options + if f.Name == "_" { + tag := f.Tag.Get("cbor") + if tag != "-" { + structOptions = tag + } + } + // Nonexportable fields are ignored. + continue + } + + tag := f.Tag.Get("cbor") + if tag == "" { + tag = f.Tag.Get("json") + } + if tag == "-" { + continue + } + + idx := make([]int, len(fieldIdx)+1) + copy(idx, fieldIdx) + idx[len(fieldIdx)] = i + + tagged := len(tag) > 0 + tagFieldName, omitempty, keyasint := getFieldNameAndOptionsFromTag(tag) + + fieldName := tagFieldName + if tagFieldName == "" { + fieldName = f.Name + } + + if !f.Anonymous || ft.Kind() != reflect.Struct || len(tagFieldName) > 0 { + flds = append(flds, &field{name: fieldName, idx: idx, typ: f.Type, tagged: tagged, omitEmpty: omitempty, keyAsInt: keyasint}) + continue + } + + // f is anonymous struct of type ft. + next[ft] = append(next[ft], idx) + } + } + } + + sort.Sort(&nameLevelAndTagFieldSorter{flds}) + + // Keep visible fields. + visibleFields := flds[:0] + for i, j := 0, 0; i < len(flds); i = j { + name := flds[i].name + for j = i + 1; j < len(flds) && flds[j].name == name; j++ { + } + if j-i == 1 || len(flds[i].idx) < len(flds[i+1].idx) || (flds[i].tagged && !flds[i+1].tagged) { + // Keep the field if the field name is unique, or if the first field + // is at a less nested level, or if the first field is tagged and + // the second field is not. + visibleFields = append(visibleFields, flds[i]) + } + } + + sort.Sort(&indexFieldSorter{visibleFields}) + + return visibleFields, structOptions +} + +func getFieldNameAndOptionsFromTag(tag string) (name string, omitEmpty bool, keyAsInt bool) { + if tag == "" { + return + } + idx := strings.Index(tag, ",") + if idx == -1 { + return tag, false, false + } + if idx > 0 { + name = tag[:idx] + tag = tag[idx:] + } + s := ",omitempty" + if idx = strings.Index(tag, s); idx >= 0 && (len(tag) == idx+len(s) || tag[idx+len(s)] == ',') { + omitEmpty = true + } + s = ",keyasint" + if idx = strings.Index(tag, s); idx >= 0 && (len(tag) == idx+len(s) || tag[idx+len(s)] == ',') { + keyAsInt = true + } + return +} diff --git a/vendor/github.com/fxamacker/cbor/v2/tag.go b/vendor/github.com/fxamacker/cbor/v2/tag.go new file mode 100644 index 0000000000000..a8121824d3871 --- /dev/null +++ b/vendor/github.com/fxamacker/cbor/v2/tag.go @@ -0,0 +1,247 @@ +package cbor + +import ( + "errors" + "fmt" + "reflect" + "sync" +) + +// Tag represents CBOR tag data, including tag number and unmarshaled tag content. +type Tag struct { + Number uint64 + Content interface{} +} + +func (t Tag) contentKind() reflect.Kind { + c := t.Content + for { + t, ok := c.(Tag) + if !ok { + break + } + c = t.Content + } + return reflect.ValueOf(c).Kind() +} + +// RawTag represents CBOR tag data, including tag number and raw tag content. +// RawTag implements Unmarshaler and Marshaler interfaces. +type RawTag struct { + Number uint64 + Content RawMessage +} + +// UnmarshalCBOR sets *t with tag number and raw tag content copied from data. +func (t *RawTag) UnmarshalCBOR(data []byte) error { + if t == nil { + return errors.New("cbor.RawTag: UnmarshalCBOR on nil pointer") + } + + d := decodeState{data: data, dm: defaultDecMode} + + // Unmarshal tag number. + typ, _, num := d.getHead() + if typ != cborTypeTag { + return &UnmarshalTypeError{Value: typ.String(), Type: typeRawTag} + } + t.Number = num + + // Unmarshal tag content. + c := d.data[d.off:] + t.Content = make([]byte, len(c)) + copy(t.Content, c) + return nil +} + +// MarshalCBOR returns CBOR encoding of t. +func (t RawTag) MarshalCBOR() ([]byte, error) { + e := getEncodeState() + encodeHead(e, byte(cborTypeTag), t.Number) + + buf := make([]byte, len(e.Bytes())+len(t.Content)) + n := copy(buf, e.Bytes()) + copy(buf[n:], t.Content) + + putEncodeState(e) + return buf, nil +} + +// DecTagMode specifies how decoder handles tag number. +type DecTagMode int + +const ( + // DecTagIgnored makes decoder ignore tag number (skips if present). + DecTagIgnored DecTagMode = iota + + // DecTagOptional makes decoder verify tag number if it's present. + DecTagOptional + + // DecTagRequired makes decoder verify tag number and tag number must be present. + DecTagRequired + + maxDecTagMode +) + +func (dtm DecTagMode) valid() bool { + return dtm < maxDecTagMode +} + +// EncTagMode specifies how encoder handles tag number. +type EncTagMode int + +const ( + // EncTagNone makes encoder not encode tag number. + EncTagNone EncTagMode = iota + + // EncTagRequired makes encoder encode tag number. + EncTagRequired + + maxEncTagMode +) + +func (etm EncTagMode) valid() bool { + return etm < maxEncTagMode +} + +// TagOptions specifies how encoder and decoder handle tag number. +type TagOptions struct { + DecTag DecTagMode + EncTag EncTagMode +} + +// TagSet is an interface to add and remove tag info. It is used by EncMode and DecMode +// to provide CBOR tag support. +type TagSet interface { + // Add adds given tag number(s), content type, and tag options to TagSet. + Add(opts TagOptions, contentType reflect.Type, num uint64, nestedNum ...uint64) error + + // Remove removes given tag content type from TagSet. + Remove(contentType reflect.Type) + + tagProvider +} + +type tagProvider interface { + get(t reflect.Type) *tagItem +} + +type tagItem struct { + num []uint64 + cborTagNum []byte + contentType reflect.Type + opts TagOptions +} + +type ( + tagSet map[reflect.Type]*tagItem + + syncTagSet struct { + sync.RWMutex + t tagSet + } +) + +func (t tagSet) get(typ reflect.Type) *tagItem { + return t[typ] +} + +// NewTagSet returns TagSet (safe for concurrency). +func NewTagSet() TagSet { + return &syncTagSet{t: make(map[reflect.Type]*tagItem)} +} + +// Add adds given tag number(s), content type, and tag options to TagSet. +func (t *syncTagSet) Add(opts TagOptions, contentType reflect.Type, num uint64, nestedNum ...uint64) error { + if contentType == nil { + return errors.New("cbor: cannot add nil content type to TagSet") + } + for contentType.Kind() == reflect.Ptr { + contentType = contentType.Elem() + } + tag, err := newTagItem(opts, contentType, num, nestedNum...) + if err != nil { + return err + } + t.Lock() + defer t.Unlock() + if _, ok := t.t[contentType]; ok { + return errors.New("cbor: content type " + contentType.String() + " already exists in TagSet") + } + t.t[contentType] = tag + return nil +} + +// Remove removes given tag content type from TagSet. +func (t *syncTagSet) Remove(contentType reflect.Type) { + for contentType.Kind() == reflect.Ptr { + contentType = contentType.Elem() + } + t.Lock() + delete(t.t, contentType) + t.Unlock() +} + +func (t *syncTagSet) get(typ reflect.Type) *tagItem { + t.RLock() + ti := t.t[typ] + t.RUnlock() + return ti +} + +func newTagItem(opts TagOptions, contentType reflect.Type, num uint64, nestedNum ...uint64) (*tagItem, error) { + if opts.DecTag == DecTagIgnored && opts.EncTag == EncTagNone { + return nil, errors.New("cbor: cannot add tag with DecTagIgnored and EncTagNone options to TagSet") + } + if contentType.PkgPath() == "" || contentType.Kind() == reflect.Interface { + return nil, errors.New("cbor: can only add named types to TagSet, got " + contentType.String()) + } + if contentType == typeTime { + return nil, errors.New("cbor: cannot add time.Time to TagSet, use EncOptions.TimeTag and DecOptions.TimeTag instead") + } + if contentType == typeTag { + return nil, errors.New("cbor: cannot add cbor.Tag to TagSet") + } + if contentType == typeRawTag { + return nil, errors.New("cbor: cannot add cbor.RawTag to TagSet") + } + if num == 0 || num == 1 { + return nil, errors.New("cbor: cannot add tag number 0 or 1 to TagSet, use EncOptions.TimeTag and DecOptions.TimeTag instead") + } + if reflect.PtrTo(contentType).Implements(typeMarshaler) && opts.EncTag != EncTagNone { + return nil, errors.New("cbor: cannot add cbor.Marshaler to TagSet with EncTag != EncTagNone") + } + if reflect.PtrTo(contentType).Implements(typeUnmarshaler) && opts.DecTag != DecTagIgnored { + return nil, errors.New("cbor: cannot add cbor.Unmarshaler to TagSet with DecTag != DecTagIgnored") + } + + te := tagItem{num: []uint64{num}, opts: opts, contentType: contentType} + te.num = append(te.num, nestedNum...) + + // Cache encoded tag numbers + e := getEncodeState() + for _, n := range te.num { + encodeHead(e, byte(cborTypeTag), n) + } + te.cborTagNum = make([]byte, e.Len()) + copy(te.cborTagNum, e.Bytes()) + putEncodeState(e) + + return &te, nil +} + +var ( + typeTag = reflect.TypeOf(Tag{}) + typeRawTag = reflect.TypeOf(RawTag{}) +) + +// WrongTagError describes mismatch between CBOR tag and registered tag. +type WrongTagError struct { + RegisteredType reflect.Type + RegisteredTagNum []uint64 + TagNum []uint64 +} + +func (e *WrongTagError) Error() string { + return fmt.Sprintf("cbor: wrong tag number for %s, got %v, expected %v", e.RegisteredType.String(), e.TagNum, e.RegisteredTagNum) +} diff --git a/vendor/github.com/fxamacker/cbor/v2/valid.go b/vendor/github.com/fxamacker/cbor/v2/valid.go new file mode 100644 index 0000000000000..0d243bb6917fa --- /dev/null +++ b/vendor/github.com/fxamacker/cbor/v2/valid.go @@ -0,0 +1,300 @@ +// Copyright (c) Faye Amacker. All rights reserved. +// Licensed under the MIT License. See LICENSE in the project root for license information. + +package cbor + +import ( + "encoding/binary" + "errors" + "io" + "strconv" +) + +// SyntaxError is a description of a CBOR syntax error. +type SyntaxError struct { + msg string +} + +func (e *SyntaxError) Error() string { return e.msg } + +// SemanticError is a description of a CBOR semantic error. +type SemanticError struct { + msg string +} + +func (e *SemanticError) Error() string { return e.msg } + +// MaxNestedLevelError indicates exceeded max nested level of any combination of CBOR arrays/maps/tags. +type MaxNestedLevelError struct { + maxNestedLevels int +} + +func (e *MaxNestedLevelError) Error() string { + return "cbor: exceeded max nested level " + strconv.Itoa(e.maxNestedLevels) +} + +// MaxArrayElementsError indicates exceeded max number of elements for CBOR arrays. +type MaxArrayElementsError struct { + maxArrayElements int +} + +func (e *MaxArrayElementsError) Error() string { + return "cbor: exceeded max number of elements " + strconv.Itoa(e.maxArrayElements) + " for CBOR array" +} + +// MaxMapPairsError indicates exceeded max number of key-value pairs for CBOR maps. +type MaxMapPairsError struct { + maxMapPairs int +} + +func (e *MaxMapPairsError) Error() string { + return "cbor: exceeded max number of key-value pairs " + strconv.Itoa(e.maxMapPairs) + " for CBOR map" +} + +// IndefiniteLengthError indicates found disallowed indefinite length items. +type IndefiniteLengthError struct { + t cborType +} + +func (e *IndefiniteLengthError) Error() string { + return "cbor: indefinite-length " + e.t.String() + " isn't allowed" +} + +// TagsMdError indicates found disallowed CBOR tags. +type TagsMdError struct { +} + +func (e *TagsMdError) Error() string { + return "cbor: CBOR tag isn't allowed" +} + +// valid checks whether CBOR data is complete and well-formed. +func (d *decodeState) valid() error { + if len(d.data) == d.off { + return io.EOF + } + _, err := d.validInternal(0) + return err +} + +// validInternal checks data's well-formedness and returns max depth and error. +func (d *decodeState) validInternal(depth int) (int, error) { + t, ai, val, err := d.validHead() + if err != nil { + return 0, err + } + + switch t { + case cborTypeByteString, cborTypeTextString: + if ai == 31 { + if d.dm.indefLength == IndefLengthForbidden { + return 0, &IndefiniteLengthError{t} + } + return d.validIndefiniteString(t, depth) + } + valInt := int(val) + if valInt < 0 { + // Detect integer overflow + return 0, errors.New("cbor: " + t.String() + " length " + strconv.FormatUint(val, 10) + " is too large, causing integer overflow") + } + if len(d.data)-d.off < valInt { // valInt+off may overflow integer + return 0, io.ErrUnexpectedEOF + } + d.off += valInt + case cborTypeArray, cborTypeMap: + depth++ + if depth > d.dm.maxNestedLevels { + return 0, &MaxNestedLevelError{d.dm.maxNestedLevels} + } + + if ai == 31 { + if d.dm.indefLength == IndefLengthForbidden { + return 0, &IndefiniteLengthError{t} + } + return d.validIndefiniteArrayOrMap(t, depth) + } + + valInt := int(val) + if valInt < 0 { + // Detect integer overflow + return 0, errors.New("cbor: " + t.String() + " length " + strconv.FormatUint(val, 10) + " is too large, it would cause integer overflow") + } + + if t == cborTypeArray { + if valInt > d.dm.maxArrayElements { + return 0, &MaxArrayElementsError{d.dm.maxArrayElements} + } + } else { + if valInt > d.dm.maxMapPairs { + return 0, &MaxMapPairsError{d.dm.maxMapPairs} + } + } + + count := 1 + if t == cborTypeMap { + count = 2 + } + maxDepth := depth + for j := 0; j < count; j++ { + for i := 0; i < valInt; i++ { + var dpt int + if dpt, err = d.validInternal(depth); err != nil { + return 0, err + } + if dpt > maxDepth { + maxDepth = dpt // Save max depth + } + } + } + depth = maxDepth + case cborTypeTag: + if d.dm.tagsMd == TagsForbidden { + return 0, &TagsMdError{} + } + + // Scan nested tag numbers to avoid recursion. + for { + if len(d.data) == d.off { // Tag number must be followed by tag content. + return 0, io.ErrUnexpectedEOF + } + if cborType(d.data[d.off]&0xe0) != cborTypeTag { + break + } + if _, _, _, err = d.validHead(); err != nil { + return 0, err + } + depth++ + if depth > d.dm.maxNestedLevels { + return 0, &MaxNestedLevelError{d.dm.maxNestedLevels} + } + } + // Check tag content. + return d.validInternal(depth) + } + return depth, nil +} + +// validIndefiniteString checks indefinite length byte/text string's well-formedness and returns max depth and error. +func (d *decodeState) validIndefiniteString(t cborType, depth int) (int, error) { + var err error + for { + if len(d.data) == d.off { + return 0, io.ErrUnexpectedEOF + } + if d.data[d.off] == 0xff { + d.off++ + break + } + // Peek ahead to get next type and indefinite length status. + nt := cborType(d.data[d.off] & 0xe0) + if t != nt { + return 0, &SyntaxError{"cbor: wrong element type " + nt.String() + " for indefinite-length " + t.String()} + } + if (d.data[d.off] & 0x1f) == 31 { + return 0, &SyntaxError{"cbor: indefinite-length " + t.String() + " chunk is not definite-length"} + } + if depth, err = d.validInternal(depth); err != nil { + return 0, err + } + } + return depth, nil +} + +// validIndefiniteArrayOrMap checks indefinite length array/map's well-formedness and returns max depth and error. +func (d *decodeState) validIndefiniteArrayOrMap(t cborType, depth int) (int, error) { + var err error + maxDepth := depth + i := 0 + for { + if len(d.data) == d.off { + return 0, io.ErrUnexpectedEOF + } + if d.data[d.off] == 0xff { + d.off++ + break + } + var dpt int + if dpt, err = d.validInternal(depth); err != nil { + return 0, err + } + if dpt > maxDepth { + maxDepth = dpt + } + i++ + if t == cborTypeArray { + if i > d.dm.maxArrayElements { + return 0, &MaxArrayElementsError{d.dm.maxArrayElements} + } + } else { + if i%2 == 0 && i/2 > d.dm.maxMapPairs { + return 0, &MaxMapPairsError{d.dm.maxMapPairs} + } + } + } + if t == cborTypeMap && i%2 == 1 { + return 0, &SyntaxError{"cbor: unexpected \"break\" code"} + } + return maxDepth, nil +} + +func (d *decodeState) validHead() (t cborType, ai byte, val uint64, err error) { + dataLen := len(d.data) - d.off + if dataLen == 0 { + return 0, 0, 0, io.ErrUnexpectedEOF + } + + t = cborType(d.data[d.off] & 0xe0) + ai = d.data[d.off] & 0x1f + val = uint64(ai) + d.off++ + + if ai < 24 { + return t, ai, val, nil + } + if ai == 24 { + if dataLen < 2 { + return 0, 0, 0, io.ErrUnexpectedEOF + } + val = uint64(d.data[d.off]) + d.off++ + if t == cborTypePrimitives && val < 32 { + return 0, 0, 0, &SyntaxError{"cbor: invalid simple value " + strconv.Itoa(int(val)) + " for type " + t.String()} + } + return t, ai, val, nil + } + if ai == 25 { + if dataLen < 3 { + return 0, 0, 0, io.ErrUnexpectedEOF + } + val = uint64(binary.BigEndian.Uint16(d.data[d.off : d.off+2])) + d.off += 2 + return t, ai, val, nil + } + if ai == 26 { + if dataLen < 5 { + return 0, 0, 0, io.ErrUnexpectedEOF + } + val = uint64(binary.BigEndian.Uint32(d.data[d.off : d.off+4])) + d.off += 4 + return t, ai, val, nil + } + if ai == 27 { + if dataLen < 9 { + return 0, 0, 0, io.ErrUnexpectedEOF + } + val = binary.BigEndian.Uint64(d.data[d.off : d.off+8]) + d.off += 8 + return t, ai, val, nil + } + if ai == 31 { + switch t { + case cborTypePositiveInt, cborTypeNegativeInt, cborTypeTag: + return 0, 0, 0, &SyntaxError{"cbor: invalid additional information " + strconv.Itoa(int(ai)) + " for type " + t.String()} + case cborTypePrimitives: // 0xff (break code) should not be outside validIndefinite(). + return 0, 0, 0, &SyntaxError{"cbor: unexpected \"break\" code"} + } + return t, ai, val, nil + } + // ai == 28, 29, 30 + return 0, 0, 0, &SyntaxError{"cbor: invalid additional information " + strconv.Itoa(int(ai)) + " for type " + t.String()} +} diff --git a/vendor/github.com/golang-jwt/jwt/MIGRATION_GUIDE.md b/vendor/github.com/golang-jwt/jwt/MIGRATION_GUIDE.md deleted file mode 100644 index c4efbd2a8c5db..0000000000000 --- a/vendor/github.com/golang-jwt/jwt/MIGRATION_GUIDE.md +++ /dev/null @@ -1,22 +0,0 @@ -## Migration Guide (v3.2.1) - -Starting from [v3.2.1](https://github.com/golang-jwt/jwt/releases/tag/v3.2.1]), the import path has changed from `github.com/dgrijalva/jwt-go` to `github.com/golang-jwt/jwt`. Future releases will be using the `github.com/golang-jwt/jwt` import path and continue the existing versioning scheme of `v3.x.x+incompatible`. Backwards-compatible patches and fixes will be done on the `v3` release branch, where as new build-breaking features will be developed in a `v4` release, possibly including a SIV-style import path. - -### go.mod replacement - -In a first step, the easiest way is to use `go mod edit` to issue a replacement. - -``` -go mod edit -replace github.com/dgrijalva/jwt-go=github.com/golang-jwt/jwt@v3.2.1+incompatible -go mod tidy -``` - -This will still keep the old import path in your code but replace it with the new package and also introduce a new indirect dependency to `github.com/golang-jwt/jwt`. Try to compile your project; it should still work. - -### Cleanup - -If your code still consistently builds, you can replace all occurences of `github.com/dgrijalva/jwt-go` with `github.com/golang-jwt/jwt`, either manually or by using tools such as `sed`. Finally, the `replace` directive in the `go.mod` file can be removed. - -## Older releases (before v3.2.0) - -The original migration guide for older releases can be found at https://github.com/dgrijalva/jwt-go/blob/master/MIGRATION_GUIDE.md. \ No newline at end of file diff --git a/vendor/github.com/golang-jwt/jwt/claims.go b/vendor/github.com/golang-jwt/jwt/claims.go deleted file mode 100644 index f1dba3cb916f4..0000000000000 --- a/vendor/github.com/golang-jwt/jwt/claims.go +++ /dev/null @@ -1,146 +0,0 @@ -package jwt - -import ( - "crypto/subtle" - "fmt" - "time" -) - -// For a type to be a Claims object, it must just have a Valid method that determines -// if the token is invalid for any supported reason -type Claims interface { - Valid() error -} - -// Structured version of Claims Section, as referenced at -// https://tools.ietf.org/html/rfc7519#section-4.1 -// See examples for how to use this with your own claim types -type StandardClaims struct { - Audience string `json:"aud,omitempty"` - ExpiresAt int64 `json:"exp,omitempty"` - Id string `json:"jti,omitempty"` - IssuedAt int64 `json:"iat,omitempty"` - Issuer string `json:"iss,omitempty"` - NotBefore int64 `json:"nbf,omitempty"` - Subject string `json:"sub,omitempty"` -} - -// Validates time based claims "exp, iat, nbf". -// There is no accounting for clock skew. -// As well, if any of the above claims are not in the token, it will still -// be considered a valid claim. -func (c StandardClaims) Valid() error { - vErr := new(ValidationError) - now := TimeFunc().Unix() - - // The claims below are optional, by default, so if they are set to the - // default value in Go, let's not fail the verification for them. - if !c.VerifyExpiresAt(now, false) { - delta := time.Unix(now, 0).Sub(time.Unix(c.ExpiresAt, 0)) - vErr.Inner = fmt.Errorf("token is expired by %v", delta) - vErr.Errors |= ValidationErrorExpired - } - - if !c.VerifyIssuedAt(now, false) { - vErr.Inner = fmt.Errorf("Token used before issued") - vErr.Errors |= ValidationErrorIssuedAt - } - - if !c.VerifyNotBefore(now, false) { - vErr.Inner = fmt.Errorf("token is not valid yet") - vErr.Errors |= ValidationErrorNotValidYet - } - - if vErr.valid() { - return nil - } - - return vErr -} - -// Compares the aud claim against cmp. -// If required is false, this method will return true if the value matches or is unset -func (c *StandardClaims) VerifyAudience(cmp string, req bool) bool { - return verifyAud([]string{c.Audience}, cmp, req) -} - -// Compares the exp claim against cmp. -// If required is false, this method will return true if the value matches or is unset -func (c *StandardClaims) VerifyExpiresAt(cmp int64, req bool) bool { - return verifyExp(c.ExpiresAt, cmp, req) -} - -// Compares the iat claim against cmp. -// If required is false, this method will return true if the value matches or is unset -func (c *StandardClaims) VerifyIssuedAt(cmp int64, req bool) bool { - return verifyIat(c.IssuedAt, cmp, req) -} - -// Compares the iss claim against cmp. -// If required is false, this method will return true if the value matches or is unset -func (c *StandardClaims) VerifyIssuer(cmp string, req bool) bool { - return verifyIss(c.Issuer, cmp, req) -} - -// Compares the nbf claim against cmp. -// If required is false, this method will return true if the value matches or is unset -func (c *StandardClaims) VerifyNotBefore(cmp int64, req bool) bool { - return verifyNbf(c.NotBefore, cmp, req) -} - -// ----- helpers - -func verifyAud(aud []string, cmp string, required bool) bool { - if len(aud) == 0 { - return !required - } - // use a var here to keep constant time compare when looping over a number of claims - result := false - - var stringClaims string - for _, a := range aud { - if subtle.ConstantTimeCompare([]byte(a), []byte(cmp)) != 0 { - result = true - } - stringClaims = stringClaims + a - } - - // case where "" is sent in one or many aud claims - if len(stringClaims) == 0 { - return !required - } - - return result -} - -func verifyExp(exp int64, now int64, required bool) bool { - if exp == 0 { - return !required - } - return now <= exp -} - -func verifyIat(iat int64, now int64, required bool) bool { - if iat == 0 { - return !required - } - return now >= iat -} - -func verifyIss(iss string, cmp string, required bool) bool { - if iss == "" { - return !required - } - if subtle.ConstantTimeCompare([]byte(iss), []byte(cmp)) != 0 { - return true - } else { - return false - } -} - -func verifyNbf(nbf int64, now int64, required bool) bool { - if nbf == 0 { - return !required - } - return now >= nbf -} diff --git a/vendor/github.com/golang-jwt/jwt/.gitignore b/vendor/github.com/golang-jwt/jwt/v4/.gitignore similarity index 100% rename from vendor/github.com/golang-jwt/jwt/.gitignore rename to vendor/github.com/golang-jwt/jwt/v4/.gitignore diff --git a/vendor/github.com/golang-jwt/jwt/LICENSE b/vendor/github.com/golang-jwt/jwt/v4/LICENSE similarity index 100% rename from vendor/github.com/golang-jwt/jwt/LICENSE rename to vendor/github.com/golang-jwt/jwt/v4/LICENSE diff --git a/vendor/github.com/golang-jwt/jwt/v4/MIGRATION_GUIDE.md b/vendor/github.com/golang-jwt/jwt/v4/MIGRATION_GUIDE.md new file mode 100644 index 0000000000000..32966f59818e4 --- /dev/null +++ b/vendor/github.com/golang-jwt/jwt/v4/MIGRATION_GUIDE.md @@ -0,0 +1,22 @@ +## Migration Guide (v4.0.0) + +Starting from [v4.0.0](https://github.com/golang-jwt/jwt/releases/tag/v4.0.0), the import path will be: + + "github.com/golang-jwt/jwt/v4" + +The `/v4` version will be backwards compatible with existing `v3.x.y` tags in this repo, as well as +`github.com/dgrijalva/jwt-go`. For most users this should be a drop-in replacement, if you're having +troubles migrating, please open an issue. + +You can replace all occurrences of `github.com/dgrijalva/jwt-go` or `github.com/golang-jwt/jwt` with `github.com/golang-jwt/jwt/v4`, either manually or by using tools such as `sed` or `gofmt`. + +And then you'd typically run: + +``` +go get github.com/golang-jwt/jwt/v4 +go mod tidy +``` + +## Older releases (before v3.2.0) + +The original migration guide for older releases can be found at https://github.com/dgrijalva/jwt-go/blob/master/MIGRATION_GUIDE.md. diff --git a/vendor/github.com/golang-jwt/jwt/README.md b/vendor/github.com/golang-jwt/jwt/v4/README.md similarity index 84% rename from vendor/github.com/golang-jwt/jwt/README.md rename to vendor/github.com/golang-jwt/jwt/v4/README.md index 9b653e46b0136..3072d24a9da6b 100644 --- a/vendor/github.com/golang-jwt/jwt/README.md +++ b/vendor/github.com/golang-jwt/jwt/v4/README.md @@ -1,13 +1,15 @@ # jwt-go [![build](https://github.com/golang-jwt/jwt/actions/workflows/build.yml/badge.svg)](https://github.com/golang-jwt/jwt/actions/workflows/build.yml) -[![Go Reference](https://pkg.go.dev/badge/github.com/golang-jwt/jwt.svg)](https://pkg.go.dev/github.com/golang-jwt/jwt) +[![Go Reference](https://pkg.go.dev/badge/github.com/golang-jwt/jwt/v4.svg)](https://pkg.go.dev/github.com/golang-jwt/jwt/v4) A [go](http://www.golang.org) (or 'golang' for search engine friendliness) implementation of [JSON Web Tokens](https://datatracker.ietf.org/doc/html/rfc7519). -**IMPORT PATH CHANGE:** Starting from [v3.2.1](https://github.com/golang-jwt/jwt/releases/tag/v3.2.1), the import path has changed from `github.com/dgrijalva/jwt-go` to `github.com/golang-jwt/jwt`. After the original author of the library suggested migrating the maintenance of `jwt-go`, a dedicated team of open source maintainers decided to clone the existing library into this repository. See [dgrijalva/jwt-go#462](https://github.com/dgrijalva/jwt-go/issues/462) for a detailed discussion on this topic. +Starting with [v4.0.0](https://github.com/golang-jwt/jwt/releases/tag/v4.0.0) this project adds Go module support, but maintains backwards compatibility with older `v3.x.y` tags and upstream `github.com/dgrijalva/jwt-go`. +See the [`MIGRATION_GUIDE.md`](./MIGRATION_GUIDE.md) for more information. + +> After the original author of the library suggested migrating the maintenance of `jwt-go`, a dedicated team of open source maintainers decided to clone the existing library into this repository. See [dgrijalva/jwt-go#462](https://github.com/dgrijalva/jwt-go/issues/462) for a detailed discussion on this topic. -Future releases will be using the `github.com/golang-jwt/jwt` import path and continue the existing versioning scheme of `v3.x.x+incompatible`. Backwards-compatible patches and fixes will be done on the `v3` release branch, where as new build-breaking features will be developed in a `v4` release, possibly including a SIV-style import path. **SECURITY NOTICE:** Some older versions of Go have a security issue in the crypto/elliptic. Recommendation is to upgrade to at least 1.15 See issue [dgrijalva/jwt-go#216](https://github.com/dgrijalva/jwt-go/issues/216) for more detail. @@ -50,7 +52,7 @@ Here's an example of an extension that integrates with multiple Google Cloud Pla ## Compliance -This library was last reviewed to comply with [RTF 7519](https://datatracker.ietf.org/doc/html/rfc7519) dated May 2015 with a few notable differences: +This library was last reviewed to comply with [RFC 7519](https://datatracker.ietf.org/doc/html/rfc7519) dated May 2015 with a few notable differences: * In order to protect against accidental use of [Unsecured JWTs](https://datatracker.ietf.org/doc/html/rfc7519#section-6), tokens using `alg=none` will only be accepted if the constant `jwt.UnsafeAllowNoneSignatureType` is provided as the key. @@ -60,10 +62,8 @@ This library is considered production ready. Feedback and feature requests are This project uses [Semantic Versioning 2.0.0](http://semver.org). Accepted pull requests will land on `main`. Periodically, versions will be tagged from `main`. You can find all the releases on [the project releases page](https://github.com/golang-jwt/jwt/releases). -While we try to make it obvious when we make breaking changes, there isn't a great mechanism for pushing announcements out to users. You may want to use this alternative package include: `gopkg.in/golang-jwt/jwt.v3`. It will do the right thing WRT semantic versioning. - **BREAKING CHANGES:*** -* Version 3.0.0 includes _a lot_ of changes from the 2.x line, including a few that break the API. We've tried to break as few things as possible, so there should just be a few type signature changes. A full list of breaking changes is available in `VERSION_HISTORY.md`. See `MIGRATION_GUIDE.md` for more information on updating your code. +A full list of breaking changes is available in `VERSION_HISTORY.md`. See `MIGRATION_GUIDE.md` for more information on updating your code. ## Usage Tips @@ -91,6 +91,7 @@ Each signing method expects a different object type for its signing keys. See th * The [HMAC signing method](https://pkg.go.dev/github.com/golang-jwt/jwt#SigningMethodHMAC) (`HS256`,`HS384`,`HS512`) expect `[]byte` values for signing and validation * The [RSA signing method](https://pkg.go.dev/github.com/golang-jwt/jwt#SigningMethodRSA) (`RS256`,`RS384`,`RS512`) expect `*rsa.PrivateKey` for signing and `*rsa.PublicKey` for validation * The [ECDSA signing method](https://pkg.go.dev/github.com/golang-jwt/jwt#SigningMethodECDSA) (`ES256`,`ES384`,`ES512`) expect `*ecdsa.PrivateKey` for signing and `*ecdsa.PublicKey` for validation +* The [EdDSA signing method](https://pkg.go.dev/github.com/golang-jwt/jwt#SigningMethodEd25519) (`Ed25519`) expect `ed25519.PrivateKey` for signing and `ed25519.PublicKey` for validation ### JWT and OAuth diff --git a/vendor/github.com/golang-jwt/jwt/VERSION_HISTORY.md b/vendor/github.com/golang-jwt/jwt/v4/VERSION_HISTORY.md similarity index 98% rename from vendor/github.com/golang-jwt/jwt/VERSION_HISTORY.md rename to vendor/github.com/golang-jwt/jwt/v4/VERSION_HISTORY.md index 637f2ba616a8e..afbfc4e408d1c 100644 --- a/vendor/github.com/golang-jwt/jwt/VERSION_HISTORY.md +++ b/vendor/github.com/golang-jwt/jwt/v4/VERSION_HISTORY.md @@ -1,5 +1,9 @@ ## `jwt-go` Version History +#### 4.0.0 + +* Introduces support for Go modules. The `v4` version will be backwards compatible with `v3.x.y`. + #### 3.2.2 * Starting from this release, we are adopting the policy to support the most 2 recent versions of Go currently available. By the time of this release, this is Go 1.15 and 1.16 ([#28](https://github.com/golang-jwt/jwt/pull/28)). diff --git a/vendor/github.com/golang-jwt/jwt/v4/claims.go b/vendor/github.com/golang-jwt/jwt/v4/claims.go new file mode 100644 index 0000000000000..41cc826563bae --- /dev/null +++ b/vendor/github.com/golang-jwt/jwt/v4/claims.go @@ -0,0 +1,273 @@ +package jwt + +import ( + "crypto/subtle" + "fmt" + "time" +) + +// Claims must just have a Valid method that determines +// if the token is invalid for any supported reason +type Claims interface { + Valid() error +} + +// RegisteredClaims are a structured version of the JWT Claims Set, +// restricted to Registered Claim Names, as referenced at +// https://datatracker.ietf.org/doc/html/rfc7519#section-4.1 +// +// This type can be used on its own, but then additional private and +// public claims embedded in the JWT will not be parsed. The typical usecase +// therefore is to embedded this in a user-defined claim type. +// +// See examples for how to use this with your own claim types. +type RegisteredClaims struct { + // the `iss` (Issuer) claim. See https://datatracker.ietf.org/doc/html/rfc7519#section-4.1.1 + Issuer string `json:"iss,omitempty"` + + // the `sub` (Subject) claim. See https://datatracker.ietf.org/doc/html/rfc7519#section-4.1.2 + Subject string `json:"sub,omitempty"` + + // the `aud` (Audience) claim. See https://datatracker.ietf.org/doc/html/rfc7519#section-4.1.3 + Audience ClaimStrings `json:"aud,omitempty"` + + // the `exp` (Expiration Time) claim. See https://datatracker.ietf.org/doc/html/rfc7519#section-4.1.4 + ExpiresAt *NumericDate `json:"exp,omitempty"` + + // the `nbf` (Not Before) claim. See https://datatracker.ietf.org/doc/html/rfc7519#section-4.1.5 + NotBefore *NumericDate `json:"nbf,omitempty"` + + // the `iat` (Issued At) claim. See https://datatracker.ietf.org/doc/html/rfc7519#section-4.1.6 + IssuedAt *NumericDate `json:"iat,omitempty"` + + // the `jti` (JWT ID) claim. See https://datatracker.ietf.org/doc/html/rfc7519#section-4.1.7 + ID string `json:"jti,omitempty"` +} + +// Valid validates time based claims "exp, iat, nbf". +// There is no accounting for clock skew. +// As well, if any of the above claims are not in the token, it will still +// be considered a valid claim. +func (c RegisteredClaims) Valid() error { + vErr := new(ValidationError) + now := TimeFunc() + + // The claims below are optional, by default, so if they are set to the + // default value in Go, let's not fail the verification for them. + if !c.VerifyExpiresAt(now, false) { + delta := now.Sub(c.ExpiresAt.Time) + vErr.Inner = fmt.Errorf("token is expired by %v", delta) + vErr.Errors |= ValidationErrorExpired + } + + if !c.VerifyIssuedAt(now, false) { + vErr.Inner = fmt.Errorf("token used before issued") + vErr.Errors |= ValidationErrorIssuedAt + } + + if !c.VerifyNotBefore(now, false) { + vErr.Inner = fmt.Errorf("token is not valid yet") + vErr.Errors |= ValidationErrorNotValidYet + } + + if vErr.valid() { + return nil + } + + return vErr +} + +// VerifyAudience compares the aud claim against cmp. +// If required is false, this method will return true if the value matches or is unset +func (c *RegisteredClaims) VerifyAudience(cmp string, req bool) bool { + return verifyAud(c.Audience, cmp, req) +} + +// VerifyExpiresAt compares the exp claim against cmp (cmp < exp). +// If req is false, it will return true, if exp is unset. +func (c *RegisteredClaims) VerifyExpiresAt(cmp time.Time, req bool) bool { + if c.ExpiresAt == nil { + return verifyExp(nil, cmp, req) + } + + return verifyExp(&c.ExpiresAt.Time, cmp, req) +} + +// VerifyIssuedAt compares the iat claim against cmp (cmp >= iat). +// If req is false, it will return true, if iat is unset. +func (c *RegisteredClaims) VerifyIssuedAt(cmp time.Time, req bool) bool { + if c.IssuedAt == nil { + return verifyIat(nil, cmp, req) + } + + return verifyIat(&c.IssuedAt.Time, cmp, req) +} + +// VerifyNotBefore compares the nbf claim against cmp (cmp >= nbf). +// If req is false, it will return true, if nbf is unset. +func (c *RegisteredClaims) VerifyNotBefore(cmp time.Time, req bool) bool { + if c.NotBefore == nil { + return verifyNbf(nil, cmp, req) + } + + return verifyNbf(&c.NotBefore.Time, cmp, req) +} + +// VerifyIssuer compares the iss claim against cmp. +// If required is false, this method will return true if the value matches or is unset +func (c *RegisteredClaims) VerifyIssuer(cmp string, req bool) bool { + return verifyIss(c.Issuer, cmp, req) +} + +// StandardClaims are a structured version of the JWT Claims Set, as referenced at +// https://datatracker.ietf.org/doc/html/rfc7519#section-4. They do not follow the +// specification exactly, since they were based on an earlier draft of the +// specification and not updated. The main difference is that they only +// support integer-based date fields and singular audiences. This might lead to +// incompatibilities with other JWT implementations. The use of this is discouraged, instead +// the newer RegisteredClaims struct should be used. +// +// Deprecated: Use RegisteredClaims instead for a forward-compatible way to access registered claims in a struct. +type StandardClaims struct { + Audience string `json:"aud,omitempty"` + ExpiresAt int64 `json:"exp,omitempty"` + Id string `json:"jti,omitempty"` + IssuedAt int64 `json:"iat,omitempty"` + Issuer string `json:"iss,omitempty"` + NotBefore int64 `json:"nbf,omitempty"` + Subject string `json:"sub,omitempty"` +} + +// Valid validates time based claims "exp, iat, nbf". There is no accounting for clock skew. +// As well, if any of the above claims are not in the token, it will still +// be considered a valid claim. +func (c StandardClaims) Valid() error { + vErr := new(ValidationError) + now := TimeFunc().Unix() + + // The claims below are optional, by default, so if they are set to the + // default value in Go, let's not fail the verification for them. + if !c.VerifyExpiresAt(now, false) { + delta := time.Unix(now, 0).Sub(time.Unix(c.ExpiresAt, 0)) + vErr.Inner = fmt.Errorf("token is expired by %v", delta) + vErr.Errors |= ValidationErrorExpired + } + + if !c.VerifyIssuedAt(now, false) { + vErr.Inner = fmt.Errorf("token used before issued") + vErr.Errors |= ValidationErrorIssuedAt + } + + if !c.VerifyNotBefore(now, false) { + vErr.Inner = fmt.Errorf("token is not valid yet") + vErr.Errors |= ValidationErrorNotValidYet + } + + if vErr.valid() { + return nil + } + + return vErr +} + +// VerifyAudience compares the aud claim against cmp. +// If required is false, this method will return true if the value matches or is unset +func (c *StandardClaims) VerifyAudience(cmp string, req bool) bool { + return verifyAud([]string{c.Audience}, cmp, req) +} + +// VerifyExpiresAt compares the exp claim against cmp (cmp < exp). +// If req is false, it will return true, if exp is unset. +func (c *StandardClaims) VerifyExpiresAt(cmp int64, req bool) bool { + if c.ExpiresAt == 0 { + return verifyExp(nil, time.Unix(cmp, 0), req) + } + + t := time.Unix(c.ExpiresAt, 0) + return verifyExp(&t, time.Unix(cmp, 0), req) +} + +// VerifyIssuedAt compares the iat claim against cmp (cmp >= iat). +// If req is false, it will return true, if iat is unset. +func (c *StandardClaims) VerifyIssuedAt(cmp int64, req bool) bool { + if c.IssuedAt == 0 { + return verifyIat(nil, time.Unix(cmp, 0), req) + } + + t := time.Unix(c.IssuedAt, 0) + return verifyIat(&t, time.Unix(cmp, 0), req) +} + +// VerifyNotBefore compares the nbf claim against cmp (cmp >= nbf). +// If req is false, it will return true, if nbf is unset. +func (c *StandardClaims) VerifyNotBefore(cmp int64, req bool) bool { + if c.NotBefore == 0 { + return verifyNbf(nil, time.Unix(cmp, 0), req) + } + + t := time.Unix(c.NotBefore, 0) + return verifyNbf(&t, time.Unix(cmp, 0), req) +} + +// VerifyIssuer compares the iss claim against cmp. +// If required is false, this method will return true if the value matches or is unset +func (c *StandardClaims) VerifyIssuer(cmp string, req bool) bool { + return verifyIss(c.Issuer, cmp, req) +} + +// ----- helpers + +func verifyAud(aud []string, cmp string, required bool) bool { + if len(aud) == 0 { + return !required + } + // use a var here to keep constant time compare when looping over a number of claims + result := false + + var stringClaims string + for _, a := range aud { + if subtle.ConstantTimeCompare([]byte(a), []byte(cmp)) != 0 { + result = true + } + stringClaims = stringClaims + a + } + + // case where "" is sent in one or many aud claims + if len(stringClaims) == 0 { + return !required + } + + return result +} + +func verifyExp(exp *time.Time, now time.Time, required bool) bool { + if exp == nil { + return !required + } + return now.Before(*exp) +} + +func verifyIat(iat *time.Time, now time.Time, required bool) bool { + if iat == nil { + return !required + } + return now.After(*iat) || now.Equal(*iat) +} + +func verifyNbf(nbf *time.Time, now time.Time, required bool) bool { + if nbf == nil { + return !required + } + return now.After(*nbf) || now.Equal(*nbf) +} + +func verifyIss(iss string, cmp string, required bool) bool { + if iss == "" { + return !required + } + if subtle.ConstantTimeCompare([]byte(iss), []byte(cmp)) != 0 { + return true + } else { + return false + } +} diff --git a/vendor/github.com/golang-jwt/jwt/doc.go b/vendor/github.com/golang-jwt/jwt/v4/doc.go similarity index 100% rename from vendor/github.com/golang-jwt/jwt/doc.go rename to vendor/github.com/golang-jwt/jwt/v4/doc.go diff --git a/vendor/github.com/golang-jwt/jwt/ecdsa.go b/vendor/github.com/golang-jwt/jwt/v4/ecdsa.go similarity index 94% rename from vendor/github.com/golang-jwt/jwt/ecdsa.go rename to vendor/github.com/golang-jwt/jwt/v4/ecdsa.go index 15e23435df6bb..eac023fc6c84e 100644 --- a/vendor/github.com/golang-jwt/jwt/ecdsa.go +++ b/vendor/github.com/golang-jwt/jwt/v4/ecdsa.go @@ -13,7 +13,7 @@ var ( ErrECDSAVerification = errors.New("crypto/ecdsa: verification error") ) -// Implements the ECDSA family of signing methods signing methods +// SigningMethodECDSA implements the ECDSA family of signing methods. // Expects *ecdsa.PrivateKey for signing and *ecdsa.PublicKey for verification type SigningMethodECDSA struct { Name string @@ -53,7 +53,7 @@ func (m *SigningMethodECDSA) Alg() string { return m.Name } -// Implements the Verify method from SigningMethod +// Verify implements token verification for the SigningMethod. // For this verify method, key must be an ecdsa.PublicKey struct func (m *SigningMethodECDSA) Verify(signingString, signature string, key interface{}) error { var err error @@ -95,7 +95,7 @@ func (m *SigningMethodECDSA) Verify(signingString, signature string, key interfa return ErrECDSAVerification } -// Implements the Sign method from SigningMethod +// Sign implements token signing for the SigningMethod. // For this signing method, key must be an ecdsa.PrivateKey struct func (m *SigningMethodECDSA) Sign(signingString string, key interface{}) (string, error) { // Get the key diff --git a/vendor/github.com/golang-jwt/jwt/ecdsa_utils.go b/vendor/github.com/golang-jwt/jwt/v4/ecdsa_utils.go similarity index 81% rename from vendor/github.com/golang-jwt/jwt/ecdsa_utils.go rename to vendor/github.com/golang-jwt/jwt/v4/ecdsa_utils.go index db9f4be7d8ea5..5700636d35b6c 100644 --- a/vendor/github.com/golang-jwt/jwt/ecdsa_utils.go +++ b/vendor/github.com/golang-jwt/jwt/v4/ecdsa_utils.go @@ -8,11 +8,11 @@ import ( ) var ( - ErrNotECPublicKey = errors.New("Key is not a valid ECDSA public key") - ErrNotECPrivateKey = errors.New("Key is not a valid ECDSA private key") + ErrNotECPublicKey = errors.New("key is not a valid ECDSA public key") + ErrNotECPrivateKey = errors.New("key is not a valid ECDSA private key") ) -// Parse PEM encoded Elliptic Curve Private Key Structure +// ParseECPrivateKeyFromPEM parses a PEM encoded Elliptic Curve Private Key Structure func ParseECPrivateKeyFromPEM(key []byte) (*ecdsa.PrivateKey, error) { var err error @@ -39,7 +39,7 @@ func ParseECPrivateKeyFromPEM(key []byte) (*ecdsa.PrivateKey, error) { return pkey, nil } -// Parse PEM encoded PKCS1 or PKCS8 public key +// ParseECPublicKeyFromPEM parses a PEM encoded PKCS1 or PKCS8 public key func ParseECPublicKeyFromPEM(key []byte) (*ecdsa.PublicKey, error) { var err error diff --git a/vendor/github.com/golang-jwt/jwt/ed25519.go b/vendor/github.com/golang-jwt/jwt/v4/ed25519.go similarity index 70% rename from vendor/github.com/golang-jwt/jwt/ed25519.go rename to vendor/github.com/golang-jwt/jwt/v4/ed25519.go index a2f8ddbe9bb3a..07d3aacd631fa 100644 --- a/vendor/github.com/golang-jwt/jwt/ed25519.go +++ b/vendor/github.com/golang-jwt/jwt/v4/ed25519.go @@ -3,14 +3,16 @@ package jwt import ( "errors" + "crypto" "crypto/ed25519" + "crypto/rand" ) var ( ErrEd25519Verification = errors.New("ed25519: verification error") ) -// Implements the EdDSA family +// SigningMethodEd25519 implements the EdDSA family. // Expects ed25519.PrivateKey for signing and ed25519.PublicKey for verification type SigningMethodEd25519 struct{} @@ -30,7 +32,7 @@ func (m *SigningMethodEd25519) Alg() string { return "EdDSA" } -// Implements the Verify method from SigningMethod +// Verify implements token verification for the SigningMethod. // For this verify method, key must be an ed25519.PublicKey func (m *SigningMethodEd25519) Verify(signingString, signature string, key interface{}) error { var err error @@ -59,23 +61,25 @@ func (m *SigningMethodEd25519) Verify(signingString, signature string, key inter return nil } -// Implements the Sign method from SigningMethod +// Sign implements token signing for the SigningMethod. // For this signing method, key must be an ed25519.PrivateKey func (m *SigningMethodEd25519) Sign(signingString string, key interface{}) (string, error) { - var ed25519Key ed25519.PrivateKey + var ed25519Key crypto.Signer var ok bool - if ed25519Key, ok = key.(ed25519.PrivateKey); !ok { + if ed25519Key, ok = key.(crypto.Signer); !ok { return "", ErrInvalidKeyType } - // ed25519.Sign panics if private key not equal to ed25519.PrivateKeySize - // this allows to avoid recover usage - if len(ed25519Key) != ed25519.PrivateKeySize { + if _, ok := ed25519Key.Public().(ed25519.PublicKey); !ok { return "", ErrInvalidKey } // Sign the string and return the encoded result - sig := ed25519.Sign(ed25519Key, []byte(signingString)) + // ed25519 performs a two-pass hash as part of its algorithm. Therefore, we need to pass a non-prehashed message into the Sign function, as indicated by crypto.Hash(0) + sig, err := ed25519Key.Sign(rand.Reader, []byte(signingString), crypto.Hash(0)) + if err != nil { + return "", err + } return EncodeSegment(sig), nil } diff --git a/vendor/github.com/golang-jwt/jwt/ed25519_utils.go b/vendor/github.com/golang-jwt/jwt/v4/ed25519_utils.go similarity index 80% rename from vendor/github.com/golang-jwt/jwt/ed25519_utils.go rename to vendor/github.com/golang-jwt/jwt/v4/ed25519_utils.go index c6357275efc0a..cdb5e68e8767a 100644 --- a/vendor/github.com/golang-jwt/jwt/ed25519_utils.go +++ b/vendor/github.com/golang-jwt/jwt/v4/ed25519_utils.go @@ -9,11 +9,11 @@ import ( ) var ( - ErrNotEdPrivateKey = errors.New("Key is not a valid Ed25519 private key") - ErrNotEdPublicKey = errors.New("Key is not a valid Ed25519 public key") + ErrNotEdPrivateKey = errors.New("key is not a valid Ed25519 private key") + ErrNotEdPublicKey = errors.New("key is not a valid Ed25519 public key") ) -// Parse PEM-encoded Edwards curve private key +// ParseEdPrivateKeyFromPEM parses a PEM-encoded Edwards curve private key func ParseEdPrivateKeyFromPEM(key []byte) (crypto.PrivateKey, error) { var err error @@ -38,7 +38,7 @@ func ParseEdPrivateKeyFromPEM(key []byte) (crypto.PrivateKey, error) { return pkey, nil } -// Parse PEM-encoded Edwards curve public key +// ParseEdPublicKeyFromPEM parses a PEM-encoded Edwards curve public key func ParseEdPublicKeyFromPEM(key []byte) (crypto.PublicKey, error) { var err error diff --git a/vendor/github.com/golang-jwt/jwt/errors.go b/vendor/github.com/golang-jwt/jwt/v4/errors.go similarity index 82% rename from vendor/github.com/golang-jwt/jwt/errors.go rename to vendor/github.com/golang-jwt/jwt/v4/errors.go index 1c93024aad2ea..b9d18e498e3f5 100644 --- a/vendor/github.com/golang-jwt/jwt/errors.go +++ b/vendor/github.com/golang-jwt/jwt/v4/errors.go @@ -27,7 +27,7 @@ const ( ValidationErrorClaimsInvalid // Generic claims validation error ) -// Helper for constructing a ValidationError with a string error message +// NewValidationError is a helper for constructing a ValidationError with a string error message func NewValidationError(errorText string, errorFlags uint32) *ValidationError { return &ValidationError{ text: errorText, @@ -35,14 +35,14 @@ func NewValidationError(errorText string, errorFlags uint32) *ValidationError { } } -// The error from Parse if token is not valid +// ValidationError represents an error from Parse if token is not valid type ValidationError struct { Inner error // stores the error returned by external dependencies, i.e.: KeyFunc Errors uint32 // bitfield. see ValidationError... constants text string // errors that do not have a valid error just have text } -// Validation error is an error type +// Error is the implementation of the err interface. func (e ValidationError) Error() string { if e.Inner != nil { return e.Inner.Error() @@ -53,6 +53,11 @@ func (e ValidationError) Error() string { } } +// Unwrap gives errors.Is and errors.As access to the inner error. +func (e *ValidationError) Unwrap() error { + return e.Inner +} + // No errors func (e *ValidationError) valid() bool { return e.Errors == 0 diff --git a/vendor/github.com/golang-jwt/jwt/v4/go.mod b/vendor/github.com/golang-jwt/jwt/v4/go.mod new file mode 100644 index 0000000000000..6bc53fdcb930a --- /dev/null +++ b/vendor/github.com/golang-jwt/jwt/v4/go.mod @@ -0,0 +1,3 @@ +module github.com/golang-jwt/jwt/v4 + +go 1.15 diff --git a/vendor/github.com/golang-jwt/jwt/v4/go.sum b/vendor/github.com/golang-jwt/jwt/v4/go.sum new file mode 100644 index 0000000000000..e69de29bb2d1d diff --git a/vendor/github.com/golang-jwt/jwt/hmac.go b/vendor/github.com/golang-jwt/jwt/v4/hmac.go similarity index 90% rename from vendor/github.com/golang-jwt/jwt/hmac.go rename to vendor/github.com/golang-jwt/jwt/v4/hmac.go index addbe5d401829..011f68a274402 100644 --- a/vendor/github.com/golang-jwt/jwt/hmac.go +++ b/vendor/github.com/golang-jwt/jwt/v4/hmac.go @@ -6,7 +6,7 @@ import ( "errors" ) -// Implements the HMAC-SHA family of signing methods signing methods +// SigningMethodHMAC implements the HMAC-SHA family of signing methods. // Expects key type of []byte for both signing and validation type SigningMethodHMAC struct { Name string @@ -45,7 +45,7 @@ func (m *SigningMethodHMAC) Alg() string { return m.Name } -// Verify the signature of HSXXX tokens. Returns nil if the signature is valid. +// Verify implements token verification for the SigningMethod. Returns nil if the signature is valid. func (m *SigningMethodHMAC) Verify(signingString, signature string, key interface{}) error { // Verify the key is the right type keyBytes, ok := key.([]byte) @@ -77,7 +77,7 @@ func (m *SigningMethodHMAC) Verify(signingString, signature string, key interfac return nil } -// Implements the Sign method from SigningMethod for this signing method. +// Sign implements token signing for the SigningMethod. // Key must be []byte func (m *SigningMethodHMAC) Sign(signingString string, key interface{}) (string, error) { if keyBytes, ok := key.([]byte); ok { diff --git a/vendor/github.com/golang-jwt/jwt/map_claims.go b/vendor/github.com/golang-jwt/jwt/v4/map_claims.go similarity index 57% rename from vendor/github.com/golang-jwt/jwt/map_claims.go rename to vendor/github.com/golang-jwt/jwt/v4/map_claims.go index 72c79f92e55ad..e7da633b93c60 100644 --- a/vendor/github.com/golang-jwt/jwt/map_claims.go +++ b/vendor/github.com/golang-jwt/jwt/v4/map_claims.go @@ -3,10 +3,11 @@ package jwt import ( "encoding/json" "errors" + "time" // "fmt" ) -// Claims type that uses the map[string]interface{} for JSON decoding +// MapClaims is a claims type that uses the map[string]interface{} for JSON decoding. // This is the default claims type if you don't supply one type MapClaims map[string]interface{} @@ -31,65 +32,92 @@ func (m MapClaims) VerifyAudience(cmp string, req bool) bool { return verifyAud(aud, cmp, req) } -// Compares the exp claim against cmp. -// If required is false, this method will return true if the value matches or is unset +// VerifyExpiresAt compares the exp claim against cmp (cmp <= exp). +// If req is false, it will return true, if exp is unset. func (m MapClaims) VerifyExpiresAt(cmp int64, req bool) bool { - exp, ok := m["exp"] + cmpTime := time.Unix(cmp, 0) + + v, ok := m["exp"] if !ok { return !req } - switch expType := exp.(type) { + + switch exp := v.(type) { case float64: - return verifyExp(int64(expType), cmp, req) + if exp == 0 { + return verifyExp(nil, cmpTime, req) + } + + return verifyExp(&newNumericDateFromSeconds(exp).Time, cmpTime, req) case json.Number: - v, _ := expType.Int64() - return verifyExp(v, cmp, req) + v, _ := exp.Float64() + + return verifyExp(&newNumericDateFromSeconds(v).Time, cmpTime, req) } + return false } -// Compares the iat claim against cmp. -// If required is false, this method will return true if the value matches or is unset +// VerifyIssuedAt compares the exp claim against cmp (cmp >= iat). +// If req is false, it will return true, if iat is unset. func (m MapClaims) VerifyIssuedAt(cmp int64, req bool) bool { - iat, ok := m["iat"] + cmpTime := time.Unix(cmp, 0) + + v, ok := m["iat"] if !ok { return !req } - switch iatType := iat.(type) { + + switch iat := v.(type) { case float64: - return verifyIat(int64(iatType), cmp, req) + if iat == 0 { + return verifyIat(nil, cmpTime, req) + } + + return verifyIat(&newNumericDateFromSeconds(iat).Time, cmpTime, req) case json.Number: - v, _ := iatType.Int64() - return verifyIat(v, cmp, req) + v, _ := iat.Float64() + + return verifyIat(&newNumericDateFromSeconds(v).Time, cmpTime, req) } - return false -} -// Compares the iss claim against cmp. -// If required is false, this method will return true if the value matches or is unset -func (m MapClaims) VerifyIssuer(cmp string, req bool) bool { - iss, _ := m["iss"].(string) - return verifyIss(iss, cmp, req) + return false } -// Compares the nbf claim against cmp. -// If required is false, this method will return true if the value matches or is unset +// VerifyNotBefore compares the nbf claim against cmp (cmp >= nbf). +// If req is false, it will return true, if nbf is unset. func (m MapClaims) VerifyNotBefore(cmp int64, req bool) bool { - nbf, ok := m["nbf"] + cmpTime := time.Unix(cmp, 0) + + v, ok := m["nbf"] if !ok { return !req } - switch nbfType := nbf.(type) { + + switch nbf := v.(type) { case float64: - return verifyNbf(int64(nbfType), cmp, req) + if nbf == 0 { + return verifyNbf(nil, cmpTime, req) + } + + return verifyNbf(&newNumericDateFromSeconds(nbf).Time, cmpTime, req) case json.Number: - v, _ := nbfType.Int64() - return verifyNbf(v, cmp, req) + v, _ := nbf.Float64() + + return verifyNbf(&newNumericDateFromSeconds(v).Time, cmpTime, req) } + return false } -// Validates time based claims "exp, iat, nbf". +// VerifyIssuer compares the iss claim against cmp. +// If required is false, this method will return true if the value matches or is unset +func (m MapClaims) VerifyIssuer(cmp string, req bool) bool { + iss, _ := m["iss"].(string) + return verifyIss(iss, cmp, req) +} + +// Valid validates time based claims "exp, iat, nbf". // There is no accounting for clock skew. // As well, if any of the above claims are not in the token, it will still // be considered a valid claim. diff --git a/vendor/github.com/golang-jwt/jwt/none.go b/vendor/github.com/golang-jwt/jwt/v4/none.go similarity index 94% rename from vendor/github.com/golang-jwt/jwt/none.go rename to vendor/github.com/golang-jwt/jwt/v4/none.go index f04d189d067be..f19835d2078bb 100644 --- a/vendor/github.com/golang-jwt/jwt/none.go +++ b/vendor/github.com/golang-jwt/jwt/v4/none.go @@ -1,6 +1,6 @@ package jwt -// Implements the none signing method. This is required by the spec +// SigningMethodNone implements the none signing method. This is required by the spec // but you probably should never use it. var SigningMethodNone *signingMethodNone diff --git a/vendor/github.com/golang-jwt/jwt/parser.go b/vendor/github.com/golang-jwt/jwt/v4/parser.go similarity index 78% rename from vendor/github.com/golang-jwt/jwt/parser.go rename to vendor/github.com/golang-jwt/jwt/v4/parser.go index d6901d9adb52b..2f61a69d7fcbd 100644 --- a/vendor/github.com/golang-jwt/jwt/parser.go +++ b/vendor/github.com/golang-jwt/jwt/v4/parser.go @@ -8,14 +8,36 @@ import ( ) type Parser struct { - ValidMethods []string // If populated, only these methods will be considered valid - UseJSONNumber bool // Use JSON Number format in JSON decoder - SkipClaimsValidation bool // Skip claims validation during token parsing + // If populated, only these methods will be considered valid. + // + // Deprecated: In future releases, this field will not be exported anymore and should be set with an option to NewParser instead. + ValidMethods []string + + // Use JSON Number format in JSON decoder. + // + // Deprecated: In future releases, this field will not be exported anymore and should be set with an option to NewParser instead. + UseJSONNumber bool + + // Skip claims validation during token parsing. + // + // Deprecated: In future releases, this field will not be exported anymore and should be set with an option to NewParser instead. + SkipClaimsValidation bool } -// Parse, validate, and return a token. +// NewParser creates a new Parser with the specified options +func NewParser(options ...ParserOption) *Parser { + p := &Parser{} + + // loop through our parsing options and apply them + for _, option := range options { + option(p) + } + + return p +} + +// Parse parses, validates, verifies the signature and returns the parsed token. // keyFunc will receive the parsed token and should return the key for validating. -// If everything is kosher, err will be nil func (p *Parser) Parse(tokenString string, keyFunc Keyfunc) (*Token, error) { return p.ParseWithClaims(tokenString, MapClaims{}, keyFunc) } @@ -87,12 +109,12 @@ func (p *Parser) ParseWithClaims(tokenString string, claims Claims, keyFunc Keyf return token, vErr } -// WARNING: Don't use this method unless you know what you're doing +// ParseUnverified parses the token but doesn't validate the signature. +// +// WARNING: Don't use this method unless you know what you're doing. // -// This method parses the token but doesn't validate the signature. It's only -// ever useful in cases where you know the signature is valid (because it has -// been checked previously in the stack) and you want to extract values from -// it. +// It's only ever useful in cases where you know the signature is valid (because it has +// been checked previously in the stack) and you want to extract values from it. func (p *Parser) ParseUnverified(tokenString string, claims Claims) (token *Token, parts []string, err error) { parts = strings.Split(tokenString, ".") if len(parts) != 3 { diff --git a/vendor/github.com/golang-jwt/jwt/v4/parser_option.go b/vendor/github.com/golang-jwt/jwt/v4/parser_option.go new file mode 100644 index 0000000000000..0fede4f15c90c --- /dev/null +++ b/vendor/github.com/golang-jwt/jwt/v4/parser_option.go @@ -0,0 +1,29 @@ +package jwt + +// ParserOption is used to implement functional-style options that modify the behaviour of the parser. To add +// new options, just create a function (ideally beginning with With or Without) that returns an anonymous function that +// takes a *Parser type as input and manipulates its configuration accordingly. +type ParserOption func(*Parser) + +// WithValidMethods is an option to supply algorithm methods that the parser will check. Only those methods will be considered valid. +// It is heavily encouraged to use this option in order to prevent attacks such as https://auth0.com/blog/critical-vulnerabilities-in-json-web-token-libraries/. +func WithValidMethods(methods []string) ParserOption { + return func(p *Parser) { + p.ValidMethods = methods + } +} + +// WithJSONNumber is an option to configure the underyling JSON parser with UseNumber +func WithJSONNumber() ParserOption { + return func(p *Parser) { + p.UseJSONNumber = true + } +} + +// WithoutClaimsValidation is an option to disable claims validation. This option should only be used if you exactly know +// what you are doing. +func WithoutClaimsValidation() ParserOption { + return func(p *Parser) { + p.SkipClaimsValidation = true + } +} diff --git a/vendor/github.com/golang-jwt/jwt/rsa.go b/vendor/github.com/golang-jwt/jwt/v4/rsa.go similarity index 92% rename from vendor/github.com/golang-jwt/jwt/rsa.go rename to vendor/github.com/golang-jwt/jwt/v4/rsa.go index e4caf1ca4a116..b910b19c0b51f 100644 --- a/vendor/github.com/golang-jwt/jwt/rsa.go +++ b/vendor/github.com/golang-jwt/jwt/v4/rsa.go @@ -6,7 +6,7 @@ import ( "crypto/rsa" ) -// Implements the RSA family of signing methods signing methods +// SigningMethodRSA implements the RSA family of signing methods. // Expects *rsa.PrivateKey for signing and *rsa.PublicKey for validation type SigningMethodRSA struct { Name string @@ -44,7 +44,7 @@ func (m *SigningMethodRSA) Alg() string { return m.Name } -// Implements the Verify method from SigningMethod +// Verify implements token verification for the SigningMethod // For this signing method, must be an *rsa.PublicKey structure. func (m *SigningMethodRSA) Verify(signingString, signature string, key interface{}) error { var err error @@ -73,7 +73,7 @@ func (m *SigningMethodRSA) Verify(signingString, signature string, key interface return rsa.VerifyPKCS1v15(rsaKey, m.Hash, hasher.Sum(nil), sig) } -// Implements the Sign method from SigningMethod +// Sign implements token signing for the SigningMethod // For this signing method, must be an *rsa.PrivateKey structure. func (m *SigningMethodRSA) Sign(signingString string, key interface{}) (string, error) { var rsaKey *rsa.PrivateKey diff --git a/vendor/github.com/golang-jwt/jwt/rsa_pss.go b/vendor/github.com/golang-jwt/jwt/v4/rsa_pss.go similarity index 94% rename from vendor/github.com/golang-jwt/jwt/rsa_pss.go rename to vendor/github.com/golang-jwt/jwt/v4/rsa_pss.go index c01470864803b..5a8502feb34b7 100644 --- a/vendor/github.com/golang-jwt/jwt/rsa_pss.go +++ b/vendor/github.com/golang-jwt/jwt/v4/rsa_pss.go @@ -8,7 +8,7 @@ import ( "crypto/rsa" ) -// Implements the RSAPSS family of signing methods signing methods +// SigningMethodRSAPSS implements the RSAPSS family of signing methods signing methods type SigningMethodRSAPSS struct { *SigningMethodRSA Options *rsa.PSSOptions @@ -79,7 +79,7 @@ func init() { }) } -// Implements the Verify method from SigningMethod +// Verify implements token verification for the SigningMethod. // For this verify method, key must be an rsa.PublicKey struct func (m *SigningMethodRSAPSS) Verify(signingString, signature string, key interface{}) error { var err error @@ -113,7 +113,7 @@ func (m *SigningMethodRSAPSS) Verify(signingString, signature string, key interf return rsa.VerifyPSS(rsaKey, m.Hash, hasher.Sum(nil), sig, opts) } -// Implements the Sign method from SigningMethod +// Sign implements token signing for the SigningMethod. // For this signing method, key must be an rsa.PrivateKey struct func (m *SigningMethodRSAPSS) Sign(signingString string, key interface{}) (string, error) { var rsaKey *rsa.PrivateKey diff --git a/vendor/github.com/golang-jwt/jwt/rsa_utils.go b/vendor/github.com/golang-jwt/jwt/v4/rsa_utils.go similarity index 72% rename from vendor/github.com/golang-jwt/jwt/rsa_utils.go rename to vendor/github.com/golang-jwt/jwt/v4/rsa_utils.go index 14c78c292a94f..1966c450bf8b2 100644 --- a/vendor/github.com/golang-jwt/jwt/rsa_utils.go +++ b/vendor/github.com/golang-jwt/jwt/v4/rsa_utils.go @@ -8,12 +8,12 @@ import ( ) var ( - ErrKeyMustBePEMEncoded = errors.New("Invalid Key: Key must be a PEM encoded PKCS1 or PKCS8 key") - ErrNotRSAPrivateKey = errors.New("Key is not a valid RSA private key") - ErrNotRSAPublicKey = errors.New("Key is not a valid RSA public key") + ErrKeyMustBePEMEncoded = errors.New("invalid key: Key must be a PEM encoded PKCS1 or PKCS8 key") + ErrNotRSAPrivateKey = errors.New("key is not a valid RSA private key") + ErrNotRSAPublicKey = errors.New("key is not a valid RSA public key") ) -// Parse PEM encoded PKCS1 or PKCS8 private key +// ParseRSAPrivateKeyFromPEM parses a PEM encoded PKCS1 or PKCS8 private key func ParseRSAPrivateKeyFromPEM(key []byte) (*rsa.PrivateKey, error) { var err error @@ -39,7 +39,11 @@ func ParseRSAPrivateKeyFromPEM(key []byte) (*rsa.PrivateKey, error) { return pkey, nil } -// Parse PEM encoded PKCS1 or PKCS8 private key protected with password +// ParseRSAPrivateKeyFromPEMWithPassword parses a PEM encoded PKCS1 or PKCS8 private key protected with password +// +// Deprecated: This function is deprecated and should not be used anymore. It uses the deprecated x509.DecryptPEMBlock +// function, which was deprecated since RFC 1423 is regarded insecure by design. Unfortunately, there is no alternative +// in the Go standard library for now. See https://github.com/golang/go/issues/8860. func ParseRSAPrivateKeyFromPEMWithPassword(key []byte, password string) (*rsa.PrivateKey, error) { var err error @@ -71,7 +75,7 @@ func ParseRSAPrivateKeyFromPEMWithPassword(key []byte, password string) (*rsa.Pr return pkey, nil } -// Parse PEM encoded PKCS1 or PKCS8 public key +// ParseRSAPublicKeyFromPEM parses a PEM encoded PKCS1 or PKCS8 public key func ParseRSAPublicKeyFromPEM(key []byte) (*rsa.PublicKey, error) { var err error diff --git a/vendor/github.com/golang-jwt/jwt/signing_method.go b/vendor/github.com/golang-jwt/jwt/v4/signing_method.go similarity index 66% rename from vendor/github.com/golang-jwt/jwt/signing_method.go rename to vendor/github.com/golang-jwt/jwt/v4/signing_method.go index ed1f212b21e1e..241ae9c60d082 100644 --- a/vendor/github.com/golang-jwt/jwt/signing_method.go +++ b/vendor/github.com/golang-jwt/jwt/v4/signing_method.go @@ -7,14 +7,14 @@ import ( var signingMethods = map[string]func() SigningMethod{} var signingMethodLock = new(sync.RWMutex) -// Implement SigningMethod to add new methods for signing or verifying tokens. +// SigningMethod can be used add new methods for signing or verifying tokens. type SigningMethod interface { Verify(signingString, signature string, key interface{}) error // Returns nil if signature is valid Sign(signingString string, key interface{}) (string, error) // Returns encoded signature or error Alg() string // returns the alg identifier for this method (example: 'HS256') } -// Register the "alg" name and a factory function for signing method. +// RegisterSigningMethod registers the "alg" name and a factory function for signing method. // This is typically done during init() in the method's implementation func RegisterSigningMethod(alg string, f func() SigningMethod) { signingMethodLock.Lock() @@ -23,7 +23,7 @@ func RegisterSigningMethod(alg string, f func() SigningMethod) { signingMethods[alg] = f } -// Get a signing method from an "alg" string +// GetSigningMethod retrieves a signing method from an "alg" string func GetSigningMethod(alg string) (method SigningMethod) { signingMethodLock.RLock() defer signingMethodLock.RUnlock() @@ -33,3 +33,14 @@ func GetSigningMethod(alg string) (method SigningMethod) { } return } + +// GetAlgorithms returns a list of registered "alg" names +func GetAlgorithms() (algs []string) { + signingMethodLock.RLock() + defer signingMethodLock.RUnlock() + + for alg := range signingMethods { + algs = append(algs, alg) + } + return +} diff --git a/vendor/github.com/golang-jwt/jwt/v4/staticcheck.conf b/vendor/github.com/golang-jwt/jwt/v4/staticcheck.conf new file mode 100644 index 0000000000000..53745d51d7c74 --- /dev/null +++ b/vendor/github.com/golang-jwt/jwt/v4/staticcheck.conf @@ -0,0 +1 @@ +checks = ["all", "-ST1000", "-ST1003", "-ST1016", "-ST1023"] diff --git a/vendor/github.com/golang-jwt/jwt/token.go b/vendor/github.com/golang-jwt/jwt/v4/token.go similarity index 50% rename from vendor/github.com/golang-jwt/jwt/token.go rename to vendor/github.com/golang-jwt/jwt/v4/token.go index 6b30ced1200cb..12344138bedcf 100644 --- a/vendor/github.com/golang-jwt/jwt/token.go +++ b/vendor/github.com/golang-jwt/jwt/v4/token.go @@ -7,18 +7,26 @@ import ( "time" ) + +// DecodePaddingAllowed will switch the codec used for decoding JWTs respectively. Note that the JWS RFC7515 +// states that the tokens will utilize a Base64url encoding with no padding. Unfortunately, some implementations +// of JWT are producing non-standard tokens, and thus require support for decoding. Note that this is a global +// variable, and updating it will change the behavior on a package level, and is also NOT go-routine safe. +// To use the non-recommended decoding, set this boolean to `true` prior to using this package. +var DecodePaddingAllowed bool + // TimeFunc provides the current time when parsing token to validate "exp" claim (expiration time). // You can override it to use another time value. This is useful for testing or if your // server uses a different time zone than your tokens. var TimeFunc = time.Now -// Parse methods use this callback function to supply +// Keyfunc will be used by the Parse methods as a callback function to supply // the key for verification. The function receives the parsed, // but unverified Token. This allows you to use properties in the // Header of the token (such as `kid`) to identify which key to use. type Keyfunc func(*Token) (interface{}, error) -// A JWT Token. Different fields will be used depending on whether you're +// Token represents a JWT Token. Different fields will be used depending on whether you're // creating or parsing/verifying a token. type Token struct { Raw string // The raw token. Populated when you Parse a token @@ -29,11 +37,12 @@ type Token struct { Valid bool // Is the token valid? Populated when you Parse/Verify a token } -// Create a new Token. Takes a signing method +// New creates a new Token with the specified signing method and an empty map of claims. func New(method SigningMethod) *Token { return NewWithClaims(method, MapClaims{}) } +// NewWithClaims creates a new Token with the specified signing method and claims. func NewWithClaims(method SigningMethod, claims Claims) *Token { return &Token{ Header: map[string]interface{}{ @@ -45,7 +54,8 @@ func NewWithClaims(method SigningMethod, claims Claims) *Token { } } -// Get the complete, signed token +// SignedString creates and returns a complete, signed JWT. +// The token is signed using the SigningMethod specified in the token. func (t *Token) SignedString(key interface{}) (string, error) { var sig, sstr string var err error @@ -58,7 +68,7 @@ func (t *Token) SignedString(key interface{}) (string, error) { return strings.Join([]string{sstr, sig}, "."), nil } -// Generate the signing string. This is the +// SigningString generates the signing string. This is the // most expensive part of the whole deal. Unless you // need this for something special, just go straight for // the SignedString. @@ -82,23 +92,40 @@ func (t *Token) SigningString() (string, error) { return strings.Join(parts, "."), nil } -// Parse, validate, and return a token. -// keyFunc will receive the parsed token and should return the key for validating. -// If everything is kosher, err will be nil -func Parse(tokenString string, keyFunc Keyfunc) (*Token, error) { - return new(Parser).Parse(tokenString, keyFunc) +// Parse parses, validates, verifies the signature and returns the parsed token. +// keyFunc will receive the parsed token and should return the cryptographic key +// for verifying the signature. +// The caller is strongly encouraged to set the WithValidMethods option to +// validate the 'alg' claim in the token matches the expected algorithm. +// For more details about the importance of validating the 'alg' claim, +// see https://auth0.com/blog/critical-vulnerabilities-in-json-web-token-libraries/ +func Parse(tokenString string, keyFunc Keyfunc, options ...ParserOption) (*Token, error) { + return NewParser(options...).Parse(tokenString, keyFunc) } -func ParseWithClaims(tokenString string, claims Claims, keyFunc Keyfunc) (*Token, error) { - return new(Parser).ParseWithClaims(tokenString, claims, keyFunc) +func ParseWithClaims(tokenString string, claims Claims, keyFunc Keyfunc, options ...ParserOption) (*Token, error) { + return NewParser(options...).ParseWithClaims(tokenString, claims, keyFunc) } -// Encode JWT specific base64url encoding with padding stripped +// EncodeSegment encodes a JWT specific base64url encoding with padding stripped +// +// Deprecated: In a future release, we will demote this function to a non-exported function, since it +// should only be used internally func EncodeSegment(seg []byte) string { return base64.RawURLEncoding.EncodeToString(seg) } -// Decode JWT specific base64url encoding with padding stripped +// DecodeSegment decodes a JWT specific base64url encoding with padding stripped +// +// Deprecated: In a future release, we will demote this function to a non-exported function, since it +// should only be used internally func DecodeSegment(seg string) ([]byte, error) { + if DecodePaddingAllowed { + if l := len(seg) % 4; l > 0 { + seg += strings.Repeat("=", 4-l) + } + return base64.URLEncoding.DecodeString(seg) + } + return base64.RawURLEncoding.DecodeString(seg) } diff --git a/vendor/github.com/golang-jwt/jwt/v4/types.go b/vendor/github.com/golang-jwt/jwt/v4/types.go new file mode 100644 index 0000000000000..80b1b96948ec4 --- /dev/null +++ b/vendor/github.com/golang-jwt/jwt/v4/types.go @@ -0,0 +1,127 @@ +package jwt + +import ( + "encoding/json" + "fmt" + "math" + "reflect" + "strconv" + "time" +) + +// TimePrecision sets the precision of times and dates within this library. +// This has an influence on the precision of times when comparing expiry or +// other related time fields. Furthermore, it is also the precision of times +// when serializing. +// +// For backwards compatibility the default precision is set to seconds, so that +// no fractional timestamps are generated. +var TimePrecision = time.Second + +// MarshalSingleStringAsArray modifies the behaviour of the ClaimStrings type, especially +// its MarshalJSON function. +// +// If it is set to true (the default), it will always serialize the type as an +// array of strings, even if it just contains one element, defaulting to the behaviour +// of the underlying []string. If it is set to false, it will serialize to a single +// string, if it contains one element. Otherwise, it will serialize to an array of strings. +var MarshalSingleStringAsArray = true + +// NumericDate represents a JSON numeric date value, as referenced at +// https://datatracker.ietf.org/doc/html/rfc7519#section-2. +type NumericDate struct { + time.Time +} + +// NewNumericDate constructs a new *NumericDate from a standard library time.Time struct. +// It will truncate the timestamp according to the precision specified in TimePrecision. +func NewNumericDate(t time.Time) *NumericDate { + return &NumericDate{t.Truncate(TimePrecision)} +} + +// newNumericDateFromSeconds creates a new *NumericDate out of a float64 representing a +// UNIX epoch with the float fraction representing non-integer seconds. +func newNumericDateFromSeconds(f float64) *NumericDate { + round, frac := math.Modf(f) + return NewNumericDate(time.Unix(int64(round), int64(frac*1e9))) +} + +// MarshalJSON is an implementation of the json.RawMessage interface and serializes the UNIX epoch +// represented in NumericDate to a byte array, using the precision specified in TimePrecision. +func (date NumericDate) MarshalJSON() (b []byte, err error) { + f := float64(date.Truncate(TimePrecision).UnixNano()) / float64(time.Second) + + return []byte(strconv.FormatFloat(f, 'f', -1, 64)), nil +} + +// UnmarshalJSON is an implementation of the json.RawMessage interface and deserializses a +// NumericDate from a JSON representation, i.e. a json.Number. This number represents an UNIX epoch +// with either integer or non-integer seconds. +func (date *NumericDate) UnmarshalJSON(b []byte) (err error) { + var ( + number json.Number + f float64 + ) + + if err = json.Unmarshal(b, &number); err != nil { + return fmt.Errorf("could not parse NumericData: %w", err) + } + + if f, err = number.Float64(); err != nil { + return fmt.Errorf("could not convert json number value to float: %w", err) + } + + n := newNumericDateFromSeconds(f) + *date = *n + + return nil +} + +// ClaimStrings is basically just a slice of strings, but it can be either serialized from a string array or just a string. +// This type is necessary, since the "aud" claim can either be a single string or an array. +type ClaimStrings []string + +func (s *ClaimStrings) UnmarshalJSON(data []byte) (err error) { + var value interface{} + + if err = json.Unmarshal(data, &value); err != nil { + return err + } + + var aud []string + + switch v := value.(type) { + case string: + aud = append(aud, v) + case []string: + aud = ClaimStrings(v) + case []interface{}: + for _, vv := range v { + vs, ok := vv.(string) + if !ok { + return &json.UnsupportedTypeError{Type: reflect.TypeOf(vv)} + } + aud = append(aud, vs) + } + case nil: + return nil + default: + return &json.UnsupportedTypeError{Type: reflect.TypeOf(v)} + } + + *s = aud + + return +} + +func (s ClaimStrings) MarshalJSON() (b []byte, err error) { + // This handles a special case in the JWT RFC. If the string array, e.g. used by the "aud" field, + // only contains one element, it MAY be serialized as a single string. This may or may not be + // desired based on the ecosystem of other JWT library used, so we make it configurable by the + // variable MarshalSingleStringAsArray. + if len(s) == 1 && !MarshalSingleStringAsArray { + return json.Marshal(s[0]) + } + + return json.Marshal([]string(s)) +} diff --git a/vendor/github.com/google/certificate-transparency-go/.gitignore b/vendor/github.com/google/certificate-transparency-go/.gitignore new file mode 100644 index 0000000000000..26073b0df9b60 --- /dev/null +++ b/vendor/github.com/google/certificate-transparency-go/.gitignore @@ -0,0 +1,29 @@ +*.iml +*.swo +*.swp +*.tfstate +*.tfstate.backup +*~ +/.idea +/certcheck +/chainfix +/coverage.txt +/createtree +/crlcheck +/ctclient +/ct_server +/ct_hammer +/data +/dumpscts +/etcdiscover +/findlog +/goshawk +/gosmin +/gossip_server +/preloader +/scanlog +/sctcheck +/sctscan +/trillian_log_server +/trillian_log_signer +/trillian.json diff --git a/vendor/github.com/google/certificate-transparency-go/.travis.yml b/vendor/github.com/google/certificate-transparency-go/.travis.yml new file mode 100644 index 0000000000000..535ff63c0d17a --- /dev/null +++ b/vendor/github.com/google/certificate-transparency-go/.travis.yml @@ -0,0 +1,87 @@ +sudo: true # required for CI push into Kubernetes. +language: go +os: linux +go: "1.10" + +go_import_path: github.com/google/certificate-transparency-go + +env: + - GCE_CI=${ENABLE_GCE_CI} GOFLAGS= + - GOFLAGS=-race + - GOFLAGS= WITH_ETCD=true WITH_COVERAGE=true + - GOFLAGS=-race WITH_ETCD=true + +matrix: + fast_finish: true + +addons: + apt: + sources: + - mysql-5.7-trusty + packages: + - mysql-server + - mysql-client + +services: + - docker + +before_install: + - sudo mysql -e "use mysql; update user set authentication_string=PASSWORD('') where User='root'; update user set plugin='mysql_native_password';FLUSH PRIVILEGES;" + - sudo mysql_upgrade + - sudo service mysql restart + +install: + - mkdir ../protoc + - | + ( + cd ../protoc + wget https://github.com/google/protobuf/releases/download/v3.5.1/protoc-3.5.1-${TRAVIS_OS_NAME}-x86_64.zip + unzip protoc-3.5.1-${TRAVIS_OS_NAME}-x86_64.zip + ) + - export PATH=$(pwd)/../protoc/bin:$PATH + - go get -d -t ./... + - go get github.com/alecthomas/gometalinter + - gometalinter --install + - go get -u github.com/golang/protobuf/proto + - go get -u github.com/golang/protobuf/protoc-gen-go + - go install github.com/golang/mock/mockgen + # install vendored etcd binary + - go install ./vendor/github.com/coreos/etcd/cmd/etcd + - go install ./vendor/github.com/coreos/etcd/cmd/etcdctl + - pushd ${GOPATH}/src/github.com/google/trillian + - go get -d -t ./... + - popd + +script: + - set -e + - cd $HOME/gopath/src/github.com/google/certificate-transparency-go + - ./scripts/presubmit.sh ${PRESUBMIT_OPTS} ${WITH_COVERAGE:+--coverage} + - | + # Check re-generation didn't change anything + status=$(git status --porcelain | grep -v coverage) || : + if [[ -n ${status} ]]; then + echo "Regenerated files differ from checked-in versions: ${status}" + git status + git diff + exit 1 + fi + - | + if [[ "${WITH_ETCD}" == "true" ]]; then + export ETCD_DIR="${GOPATH}/bin" + fi + - ./trillian/integration/integration_test.sh + - HAMMER_OPTS="--operations=1500" ./trillian/integration/ct_hammer_test.sh + - set +e + +after_success: + - cp /tmp/coverage.txt . + - bash <(curl -s https://codecov.io/bash) + - | + # Push up to GCE CI instance if we're running after a merge to master + if [[ "${GCE_CI}" == "true" ]] && [[ $TRAVIS_PULL_REQUEST == "false" ]] && [[ $TRAVIS_BRANCH == "master" ]]; then + . scripts/install_cloud.sh + echo ${GCLOUD_SERVICE_KEY_CI} | base64 --decode -i > ${HOME}/gcloud-service-key.json + gcloud auth activate-service-account --key-file ${HOME}/gcloud-service-key.json + rm ${HOME}/gcloud-service-key.json + . scripts/deploy_gce_ci.sh + fi diff --git a/vendor/github.com/google/certificate-transparency-go/AUTHORS b/vendor/github.com/google/certificate-transparency-go/AUTHORS new file mode 100644 index 0000000000000..649da70b0205c --- /dev/null +++ b/vendor/github.com/google/certificate-transparency-go/AUTHORS @@ -0,0 +1,27 @@ +# This is the official list of benchmark authors for copyright purposes. +# This file is distinct from the CONTRIBUTORS files. +# See the latter for an explanation. +# +# Names should be added to this file as: +# Name or Organization +# The email address is not required for organizations. +# +# Please keep the list sorted. + +Comodo CA Limited +Ed Maste +Fiaz Hossain +Google Inc. +Internet Security Research Group +Jeff Trawick +Katriel Cohn-Gordon +Laël Cellier +Mark Schloesser +NORDUnet A/S +Nicholas Galbreath +Oliver Weidner +PrimeKey Solutions AB +Ruslan Kovalov +Venafi, Inc. +Vladimir Rutsky +Ximin Luo diff --git a/vendor/github.com/google/certificate-transparency-go/CHANGELOG.md b/vendor/github.com/google/certificate-transparency-go/CHANGELOG.md new file mode 100644 index 0000000000000..73d111dd8f52e --- /dev/null +++ b/vendor/github.com/google/certificate-transparency-go/CHANGELOG.md @@ -0,0 +1,208 @@ +# CERTIFICATE-TRANSPARENCY-GO Changelog + +## v1.0.20 - Minimal Gossip / Go 1.11 Fix / Utility Improvements + +Published 2018-07-05 09:21:34 +0000 UTC + +Enhancements have been made to various utilities including `scanner`, `sctcheck`, `loglist` and `x509util`. + +The `allow_verification_with_non_compliant_keys` flag has been removed from `signatures.go`. + +An implementation of Gossip has been added. See the `gossip/minimal` package for more information. + +An X.509 compatibility issue for Go 1.11 has been fixed. This should be backwards compatible with 1.10. + +Commit [37a384cd035e722ea46e55029093e26687138edf](https://api.github.com/repos/google/certificate-transparency-go/commits/37a384cd035e722ea46e55029093e26687138edf) Download [zip](https://api.github.com/repos/google/certificate-transparency-go/zipball/v1.0.20) + +## v1.0.19 - CTFE User Quota + +Published 2018-06-01 13:51:52 +0000 UTC + +CTFE now supports Trillian Log's explicit quota API; quota can be requested based on the remote user's IP, as well as per-issuing certificate in submitted chains. + +Commit [8736a411b4ff214ea20687e46c2b67d66ebd83fc](https://api.github.com/repos/google/certificate-transparency-go/commits/8736a411b4ff214ea20687e46c2b67d66ebd83fc) Download [zip](https://api.github.com/repos/google/certificate-transparency-go/zipball/v1.0.19) + +## v1.0.18 - Adding Migration Tool / Client Additions / K8 Config + +Published 2018-06-01 14:28:20 +0000 UTC + +Work on a log migration tool (Migrillian) is in progress. This is not yet ready for production use but will provide features for mirroring and migrating logs. + +The `RequestLog` API allows for logging of SCTs when they are issued by CTFE. + +The CT Go client now supports `GetEntryAndProof`. Utilities have been switched over to use the `glog` package. + +Commit [77abf2dac5410a62c04ac1c662c6d0fa54afc2dc](https://api.github.com/repos/google/certificate-transparency-go/commits/77abf2dac5410a62c04ac1c662c6d0fa54afc2dc) Download [zip](https://api.github.com/repos/google/certificate-transparency-go/zipball/v1.0.18) + +## v1.0.17 - Merkle verification / Tracing / Demo script / CORS + +Published 2018-06-01 14:25:16 +0000 UTC + +Now uses Merkle Tree verification from Trillian. + +The CT server now supports CORS. + +Request tracing added using OpenCensus. For GCE / K8 it just requires the flag to be enabled to export traces to Stackdriver. Other environments may differ. + +A demo script was added that goes through setting up a simple deployment suitable for development / demo purposes. This may be useful for those new to the project. + +Commit [3c3d22ce946447d047a03228ebb4a41e3e4eb15b](https://api.github.com/repos/google/certificate-transparency-go/commits/3c3d22ce946447d047a03228ebb4a41e3e4eb15b) Download [zip](https://api.github.com/repos/google/certificate-transparency-go/zipball/v1.0.17) + +## v1.0.16 - Lifecycle test / Go 1.10.1 + +Published 2018-06-01 14:22:23 +0000 UTC + +An integration test was added that goes through a create / drain queue / freeze lifecycle for a log. + +Changes to `x509` were merged from Go 1.10.1. + +Commit [a72423d09b410b80673fd1135ba1022d04bac6cd](https://api.github.com/repos/google/certificate-transparency-go/commits/a72423d09b410b80673fd1135ba1022d04bac6cd) Download [zip](https://api.github.com/repos/google/certificate-transparency-go/zipball/v1.0.16) + +## v1.0.15 - More control of verification, grpclb, stackdriver metrics + +Published 2018-06-01 14:20:32 +0000 UTC + +Facilities were added to the `x509` package to control whether verification checks are applied. + +Log server requests are now balanced using `gRPClb`. + +For Kubernetes, metrics can be published to Stackdriver monitoring. + +Commit [684d6eee6092774e54d301ccad0ed61bc8d010c1](https://api.github.com/repos/google/certificate-transparency-go/commits/684d6eee6092774e54d301ccad0ed61bc8d010c1) Download [zip](https://api.github.com/repos/google/certificate-transparency-go/zipball/v1.0.15) + +## v1.0.14 - SQLite Removed, LeafHashForLeaf + +Published 2018-06-01 14:15:37 +0000 UTC + +Support for SQLlite was removed. This motivation was ongoing test flakiness caused by multi-user access. This database may work for an embedded scenario but is not suitable for use in a server environment. + +A `LeafHashForLeaf` client API was added and is now used by the CT client and integration tests. + +Commit [698cd6a661196db4b2e71437422178ffe8705006](https://api.github.com/repos/google/certificate-transparency-go/commits/698cd6a661196db4b2e71437422178ffe8705006) Download [zip](https://api.github.com/repos/google/certificate-transparency-go/zipball/v1.0.14) + +## v1.0.13 - Crypto changes, util updates, sync with trillian repo, loglist verification + +Published 2018-06-01 14:15:21 +0000 UTC + +Some of our custom crypto package that were wrapping calls to the standard package have been removed and the base features used directly. + +Updates were made to GCE ingress and health checks. + +The log list utility can verify signatures. + +Commit [480c3654a70c5383b9543ec784203030aedbd3a5](https://api.github.com/repos/google/certificate-transparency-go/commits/480c3654a70c5383b9543ec784203030aedbd3a5) Download [zip](https://api.github.com/repos/google/certificate-transparency-go/zipball/v1.0.13) + +## v1.0.12 - Client / util updates & CTFE fixes + +Published 2018-06-01 14:13:42 +0000 UTC + +The CT client can now use a JSON loglist to find logs. + +CTFE had a fix applied for preissued precerts. + +A DNS client was added and CT client was extended to support DNS retrieval. + +Commit [74c06c95e0b304a050a1c33764c8a01d653a16e3](https://api.github.com/repos/google/certificate-transparency-go/commits/74c06c95e0b304a050a1c33764c8a01d653a16e3) Download [zip](https://api.github.com/repos/google/certificate-transparency-go/zipball/v1.0.12) + +## v1.0.11 - Kubernetes CI / Integration fixes + +Published 2018-06-01 14:12:18 +0000 UTC + +Updates to Kubernetes configs, mostly related to running a CI instance. + +Commit [0856acca7e0ab7f082ae83a1fbb5d21160962efc](https://api.github.com/repos/google/certificate-transparency-go/commits/0856acca7e0ab7f082ae83a1fbb5d21160962efc) Download [zip](https://api.github.com/repos/google/certificate-transparency-go/zipball/v1.0.11) + +## v1.0.10 - More scanner, x509, utility and client fixes. CTFE updates + +Published 2018-06-01 14:09:47 +0000 UTC + +The CT client was using the wrong protobuffer library package. To guard against this in future a check has been added to our lint config. + +The `x509` and `asn1` packages have had upstream fixes applied from Go 1.10rc1. + +Commit [1bec4527572c443752ad4f2830bef88be0533236](https://api.github.com/repos/google/certificate-transparency-go/commits/1bec4527572c443752ad4f2830bef88be0533236) Download [zip](https://api.github.com/repos/google/certificate-transparency-go/zipball/v1.0.10) + +## v1.0.9 - Scanner, x509, utility and client fixes + +Published 2018-06-01 14:11:13 +0000 UTC + +The `scanner` utility now displays throughput stats. + +Build instructions and README files were updated. + +The `certcheck` utility can be told to ignore unknown critical X.509 extensions. + +Commit [c06833528d04a94eed0c775104d1107bab9ae17c](https://api.github.com/repos/google/certificate-transparency-go/commits/c06833528d04a94eed0c775104d1107bab9ae17c) Download [zip](https://api.github.com/repos/google/certificate-transparency-go/zipball/v1.0.9) + +## v1.0.8 - Client fixes, align with trillian repo + +Published 2018-06-01 14:06:44 +0000 UTC + + + +Commit [e8b02c60f294b503dbb67de0868143f5d4935e56](https://api.github.com/repos/google/certificate-transparency-go/commits/e8b02c60f294b503dbb67de0868143f5d4935e56) Download [zip](https://api.github.com/repos/google/certificate-transparency-go/zipball/v1.0.8) + +## v1.0.7 - CTFE fixes + +Published 2018-06-01 14:06:13 +0000 UTC + +An issue was fixed with CTFE signature caching. In an unlikely set of circumstances this could lead to log mis-operation. While the chances of this are small, we recommend that versions prior to this one are not deployed. + +Commit [52c0590bd3b4b80c5497005b0f47e10557425eeb](https://api.github.com/repos/google/certificate-transparency-go/commits/52c0590bd3b4b80c5497005b0f47e10557425eeb) Download [zip](https://api.github.com/repos/google/certificate-transparency-go/zipball/v1.0.7) + +## v1.0.6 - crlcheck improvements / other fixes + +Published 2018-06-01 14:04:22 +0000 UTC + +The `crlcheck` utility has had several fixes and enhancements. Additionally the `hammer` now supports temporal logs. + +Commit [3955e4a00c42e83ff17ce25003976159c5d0f0f9](https://api.github.com/repos/google/certificate-transparency-go/commits/3955e4a00c42e83ff17ce25003976159c5d0f0f9) Download [zip](https://api.github.com/repos/google/certificate-transparency-go/zipball/v1.0.6) + +## v1.0.5 - X509 and asn1 fixes + +Published 2018-06-01 14:02:58 +0000 UTC + +This release is mostly fixes to the `x509` and `asn1` packages. Some command line utilties were also updated. + +Commit [ae40d07cce12f1227c6e658e61c9dddb7646f97b](https://api.github.com/repos/google/certificate-transparency-go/commits/ae40d07cce12f1227c6e658e61c9dddb7646f97b) Download [zip](https://api.github.com/repos/google/certificate-transparency-go/zipball/v1.0.5) + +## v1.0.4 - Multi log backend configs + +Published 2018-06-01 14:02:07 +0000 UTC + +Support was added to allow CTFE to use multiple backends, each serving a distinct set of logs. It allows for e.g. regional backend deployment with common frontend servers. + +Commit [62023ed90b41fa40854957b5dec7d9d73594723f](https://api.github.com/repos/google/certificate-transparency-go/commits/62023ed90b41fa40854957b5dec7d9d73594723f) Download [zip](https://api.github.com/repos/google/certificate-transparency-go/zipball/v1.0.4) + +## v1.0.3 - Hammer updates, use standard context + +Published 2018-06-01 14:01:11 +0000 UTC + +After the Go 1.9 migration references to anything other than the standard `context` package have been removed. This is the only one that should be used from now on. + +Commit [b28beed8b9aceacc705e0ff4a11d435a310e3d97](https://api.github.com/repos/google/certificate-transparency-go/commits/b28beed8b9aceacc705e0ff4a11d435a310e3d97) Download [zip](https://api.github.com/repos/google/certificate-transparency-go/zipball/v1.0.3) + +## v1.0.2 - Go 1.9 + +Published 2018-06-01 14:00:00 +0000 UTC + +Go 1.9 is now required to build the code. + +Commit [3aed33d672ee43f04b1e8a00b25ca3e2e2e74309](https://api.github.com/repos/google/certificate-transparency-go/commits/3aed33d672ee43f04b1e8a00b25ca3e2e2e74309) Download [zip](https://api.github.com/repos/google/certificate-transparency-go/zipball/v1.0.2) + +## v1.0.1 - Hammer and client improvements + +Published 2018-06-01 13:59:29 +0000 UTC + + + +Commit [c28796cc21776667fb05d6300e32d9517be96515](https://api.github.com/repos/google/certificate-transparency-go/commits/c28796cc21776667fb05d6300e32d9517be96515) Download [zip](https://api.github.com/repos/google/certificate-transparency-go/zipball/v1.0.1) + +## v1.0 - First Trillian CT Release + +Published 2018-06-01 13:59:00 +0000 UTC + +This is the point that corresponds to the 1.0 release in the trillian repo. + +Commit [abb79e468b6f3bbd48d1ab0c9e68febf80d52c4d](https://api.github.com/repos/google/certificate-transparency-go/commits/abb79e468b6f3bbd48d1ab0c9e68febf80d52c4d) Download [zip](https://api.github.com/repos/google/certificate-transparency-go/zipball/v1.0) + diff --git a/vendor/github.com/google/certificate-transparency-go/CONTRIBUTING.md b/vendor/github.com/google/certificate-transparency-go/CONTRIBUTING.md new file mode 100644 index 0000000000000..43de4c9d4709a --- /dev/null +++ b/vendor/github.com/google/certificate-transparency-go/CONTRIBUTING.md @@ -0,0 +1,58 @@ +# How to contribute # + +We'd love to accept your patches and contributions to this project. There are +a just a few small guidelines you need to follow. + + +## Contributor License Agreement ## + +Contributions to any Google project must be accompanied by a Contributor +License Agreement. This is not a copyright **assignment**, it simply gives +Google permission to use and redistribute your contributions as part of the +project. + + * If you are an individual writing original source code and you're sure you + own the intellectual property, then you'll need to sign an [individual + CLA][]. + + * If you work for a company that wants to allow you to contribute your work, + then you'll need to sign a [corporate CLA][]. + +You generally only need to submit a CLA once, so if you've already submitted +one (even if it was for a different project), you probably don't need to do it +again. + +[individual CLA]: https://developers.google.com/open-source/cla/individual +[corporate CLA]: https://developers.google.com/open-source/cla/corporate + +Once your CLA is submitted (or if you already submitted one for +another Google project), make a commit adding yourself to the +[AUTHORS][] and [CONTRIBUTORS][] files. This commit can be part +of your first [pull request][]. + +[AUTHORS]: AUTHORS +[CONTRIBUTORS]: CONTRIBUTORS + + +## Submitting a patch ## + + 1. It's generally best to start by opening a new issue describing the bug or + feature you're intending to fix. Even if you think it's relatively minor, + it's helpful to know what people are working on. Mention in the initial + issue that you are planning to work on that bug or feature so that it can + be assigned to you. + + 1. Follow the normal process of [forking][] the project, and setup a new + branch to work in. It's important that each group of changes be done in + separate branches in order to ensure that a pull request only includes the + commits related to that bug or feature. + + 1. Do your best to have [well-formed commit messages][] for each change. + This provides consistency throughout the project, and ensures that commit + messages are able to be formatted properly by various git tools. + + 1. Finally, push the commits to your fork and submit a [pull request][]. + +[forking]: https://help.github.com/articles/fork-a-repo +[well-formed commit messages]: http://tbaggery.com/2008/04/19/a-note-about-git-commit-messages.html +[pull request]: https://help.github.com/articles/creating-a-pull-request diff --git a/vendor/github.com/google/certificate-transparency-go/CONTRIBUTORS b/vendor/github.com/google/certificate-transparency-go/CONTRIBUTORS new file mode 100644 index 0000000000000..4336fc52e2ce8 --- /dev/null +++ b/vendor/github.com/google/certificate-transparency-go/CONTRIBUTORS @@ -0,0 +1,57 @@ +# People who have agreed to one of the CLAs and can contribute patches. +# The AUTHORS file lists the copyright holders; this file +# lists people. For example, Google employees are listed here +# but not in AUTHORS, because Google holds the copyright. +# +# Names should be added to this file only after verifying that +# the individual or the individual's organization has agreed to +# the appropriate Contributor License Agreement, found here: +# +# https://developers.google.com/open-source/cla/individual +# https://developers.google.com/open-source/cla/corporate +# +# The agreement for individuals can be filled out on the web. +# +# When adding J Random Contributor's name to this file, +# either J's name or J's organization's name should be +# added to the AUTHORS file, depending on whether the +# individual or corporate CLA was used. +# +# Names should be added to this file as: +# Name +# +# Please keep the list sorted. + +Adam Eijdenberg +Al Cutter +Ben Laurie +Chris Kennelly +David Drysdale +Deyan Bektchiev +Ed Maste +Emilia Kasper +Eran Messeri +Fiaz Hossain +Gary Belvin +Jeff Trawick +Joe Tsai +Kat Joyce +Katriel Cohn-Gordon +Kiril Nikolov +Konrad Kraszewski +Laël Cellier +Linus Nordberg +Mark Schloesser +Nicholas Galbreath +Oliver Weidner +Pascal Leroy +Paul Hadfield +Paul Lietar +Pierre Phaneuf +Rob Percival +Rob Stradling +Roland Shoemaker +Ruslan Kovalov +Samuel Lidén Borell +Vladimir Rutsky +Ximin Luo diff --git a/vendor/github.com/google/certificate-transparency-go/LICENSE b/vendor/github.com/google/certificate-transparency-go/LICENSE new file mode 100644 index 0000000000000..d645695673349 --- /dev/null +++ b/vendor/github.com/google/certificate-transparency-go/LICENSE @@ -0,0 +1,202 @@ + + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. 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We also recommend that a + file or class name and description of purpose be included on the + same "printed page" as the copyright notice for easier + identification within third-party archives. + + Copyright [yyyy] [name of copyright owner] + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. diff --git a/vendor/github.com/google/certificate-transparency-go/README.md b/vendor/github.com/google/certificate-transparency-go/README.md new file mode 100644 index 0000000000000..6b71eaa987b9e --- /dev/null +++ b/vendor/github.com/google/certificate-transparency-go/README.md @@ -0,0 +1,144 @@ +# Certificate Transparency: Go Code + +[![Build Status](https://travis-ci.org/google/certificate-transparency-go.svg?branch=master)](https://travis-ci.org/google/certificate-transparency-go) +[![Go Report Card](https://goreportcard.com/badge/github.com/google/certificate-transparency-go)](https://goreportcard.com/report/github.com/google/certificate-transparency-go) +[![GoDoc](https://godoc.org/github.com/google/certificate-transparency-go?status.svg)](https://godoc.org/github.com/google/certificate-transparency-go) + +This repository holds Go code related to +[Certificate Transparency](https://www.certificate-transparency.org/) (CT). The +repository requires Go version 1.9. + + - [Repository Structure](#repository-structure) + - [Trillian CT Personality](#trillian-ct-personality) + - [Working on the Code](#working-on-the-code) + - [Rebuilding Generated Code](#rebuilding-generated-code) + - [Updating Vendor Code](#updating-vendor-code) + - [Running Codebase Checks](#running-codebase-checks) + +## Repository Structure + +The main parts of the repository are: + + - Encoding libraries: + - `asn1/` and `x509/` are forks of the upstream Go `encoding/asn1` and + `crypto/x509` libraries. We maintain separate forks of these packages + because CT is intended to act as an observatory of certificates across the + ecosystem; as such, we need to be able to process somewhat-malformed + certificates that the stricter upstream code would (correctly) reject. + Our `x509` fork also includes code for working with the + [pre-certificates defined in RFC 6962](https://tools.ietf.org/html/rfc6962#section-3.1). + - `tls` holds a library for processing TLS-encoded data as described in + [RFC 5246](https://tools.ietf.org/html/rfc5246). + - `x509util` provides additional utilities for dealing with + `x509.Certificate`s. + - CT client libraries: + - The top-level `ct` package (in `.`) holds types and utilities for working + with CT data structures defined in + [RFC 6962](https://tools.ietf.org/html/rfc6962). + - `client/` and `jsonclient/` hold libraries that allow access to CT Logs + via entrypoints described in + [section 4 of RFC 6962](https://tools.ietf.org/html/rfc6962#section-4). + - `scanner/` holds a library for scanning the entire contents of an existing + CT Log. + - Command line tools: + - `./client/ctclient` allows interaction with a CT Log + - `./scanner/scanlog` allows an existing CT Log to be scanned for certificates + of interest; please be polite when running this tool against a Log. + - `./x509util/certcheck` allows display and verification of certificates + - `./x509util/crlcheck` allows display and verification of certificate + revocation lists (CRLs). + - CT Personality for [Trillian](https://github.com/google/trillian): + - `trillian/` holds code that allows a Certificate Transparency Log to be + run using a Trillian Log as its back-end -- see + [below](#trillian-ct-personality). + + +## Trillian CT Personality + +The `trillian/` subdirectory holds code and scripts for running a CT Log based +on the [Trillian](https://github.com/google/trillian) general transparency Log. + +The main code for the CT personality is held in `trillian/ctfe`; this code +responds to HTTP requests on the +[CT API paths](https://tools.ietf.org/html/rfc6962#section-4) and translates +them to the equivalent gRPC API requests to the Trillian Log. + +This obviously relies on the gRPC API definitions at +`github.com/google/trillian`; the code also uses common libraries from the +Trillian project for: + - exposing monitoring and statistics via an `interface` and corresponding + Prometheus implementation (`github.com/google/trillian/monitoring/...`) + - dealing with cryptographic keys (`github.com/google/trillian/crypto/...`). + +The `trillian/integration/` directory holds scripts and tests for running the whole +system locally. In particular: + - `trillian/integration/ct_integration_test.sh` brings up local processes + running a Trillian Log server, signer and a CT personality, and exercises the + complete set of RFC 6962 API entrypoints. + - `trillian/integration/ct_hammer_test.sh` brings up a complete system and runs + a continuous randomized test of the CT entrypoints. + +These scripts require a local database instance to be configured as described +in the [Trillian instructions](https://github.com/google/trillian#mysql-setup). + + +## Working on the Code + +Developers who want to make changes to the codebase need some additional +dependencies and tools, described in the following sections. The +[Travis configuration](.travis.yml) for the codebase is also useful reference +for the required tools and scripts, as it may be more up-to-date than this +document. + +### Rebuilding Generated Code + +Some of the CT Go code is autogenerated from other files: + + - [Protocol buffer](https://developers.google.com/protocol-buffers/) message + definitions are converted to `.pb.go` implementations. + - A mock implementation of the Trillian gRPC API (in `trillian/mockclient`) is + created with [GoMock](https://github.com/golang/mock). + +Re-generating mock or protobuffer files is only needed if you're changing +the original files; if you do, you'll need to install the prerequisites: + + - `mockgen` tool from https://github.com/golang/mock + - `protoc`, [Go support for protoc](https://github.com/golang/protobuf) (see + documentation linked from the + [protobuf site](https://github.com/google/protobuf)) + +and run the following: + +```bash +go generate -x ./... # hunts for //go:generate comments and runs them +``` + +### Updating Vendor Code + +The codebase includes a couple of external projects under the `vendor/` +subdirectory, to ensure that builds use a fixed version (typically because the +upstream repository does not guarantee back-compatibility between the tip +`master` branch and the current stable release). See +[instructions in the Trillian repo](https://github.com/google/trillian#updating-vendor-code) +for how to update vendored subtrees. + + +### Running Codebase Checks + +The [`scripts/presubmit.sh`](scripts/presubmit.sh) script runs various tools +and tests over the codebase. + +```bash +# Install gometalinter and all linters +go get -u github.com/alecthomas/gometalinter +gometalinter --install + +# Run code generation, build, test and linters +./scripts/presubmit.sh + +# Run build, test and linters but skip code generation +./scripts/presubmit.sh --no-generate + +# Or just run the linters alone: +gometalinter --config=gometalinter.json ./... +``` diff --git a/vendor/github.com/google/certificate-transparency-go/asn1/asn1.go b/vendor/github.com/google/certificate-transparency-go/asn1/asn1.go new file mode 100644 index 0000000000000..3af7c48760e86 --- /dev/null +++ b/vendor/github.com/google/certificate-transparency-go/asn1/asn1.go @@ -0,0 +1,1141 @@ +// Copyright 2009 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// Package asn1 implements parsing of DER-encoded ASN.1 data structures, +// as defined in ITU-T Rec X.690. +// +// See also ``A Layman's Guide to a Subset of ASN.1, BER, and DER,'' +// http://luca.ntop.org/Teaching/Appunti/asn1.html. +// +// This is a fork of the Go standard library ASN.1 implementation +// (encoding/asn1). The main difference is that this version tries to correct +// for errors (e.g. use of tagPrintableString when the string data is really +// ISO8859-1 - a common error present in many x509 certificates in the wild.) +package asn1 + +// ASN.1 is a syntax for specifying abstract objects and BER, DER, PER, XER etc +// are different encoding formats for those objects. Here, we'll be dealing +// with DER, the Distinguished Encoding Rules. DER is used in X.509 because +// it's fast to parse and, unlike BER, has a unique encoding for every object. +// When calculating hashes over objects, it's important that the resulting +// bytes be the same at both ends and DER removes this margin of error. +// +// ASN.1 is very complex and this package doesn't attempt to implement +// everything by any means. + +import ( + "errors" + "fmt" + "math" + "math/big" + "reflect" + "strconv" + "strings" + "time" + "unicode/utf8" +) + +// A StructuralError suggests that the ASN.1 data is valid, but the Go type +// which is receiving it doesn't match. +type StructuralError struct { + Msg string + Field string +} + +func (e StructuralError) Error() string { + var prefix string + if e.Field != "" { + prefix = e.Field + ": " + } + return "asn1: structure error: " + prefix + e.Msg +} + +// A SyntaxError suggests that the ASN.1 data is invalid. +type SyntaxError struct { + Msg string + Field string +} + +func (e SyntaxError) Error() string { + var prefix string + if e.Field != "" { + prefix = e.Field + ": " + } + return "asn1: syntax error: " + prefix + e.Msg +} + +// We start by dealing with each of the primitive types in turn. + +// BOOLEAN + +func parseBool(bytes []byte, fieldName string) (ret bool, err error) { + if len(bytes) != 1 { + err = SyntaxError{"invalid boolean", fieldName} + return + } + + // DER demands that "If the encoding represents the boolean value TRUE, + // its single contents octet shall have all eight bits set to one." + // Thus only 0 and 255 are valid encoded values. + switch bytes[0] { + case 0: + ret = false + case 0xff: + ret = true + default: + err = SyntaxError{"invalid boolean", fieldName} + } + + return +} + +// INTEGER + +// checkInteger returns nil if the given bytes are a valid DER-encoded +// INTEGER and an error otherwise. +func checkInteger(bytes []byte, fieldName string) error { + if len(bytes) == 0 { + return StructuralError{"empty integer", fieldName} + } + if len(bytes) == 1 { + return nil + } + if (bytes[0] == 0 && bytes[1]&0x80 == 0) || (bytes[0] == 0xff && bytes[1]&0x80 == 0x80) { + return StructuralError{"integer not minimally-encoded", fieldName} + } + return nil +} + +// parseInt64 treats the given bytes as a big-endian, signed integer and +// returns the result. +func parseInt64(bytes []byte, fieldName string) (ret int64, err error) { + err = checkInteger(bytes, fieldName) + if err != nil { + return + } + if len(bytes) > 8 { + // We'll overflow an int64 in this case. + err = StructuralError{"integer too large", fieldName} + return + } + for bytesRead := 0; bytesRead < len(bytes); bytesRead++ { + ret <<= 8 + ret |= int64(bytes[bytesRead]) + } + + // Shift up and down in order to sign extend the result. + ret <<= 64 - uint8(len(bytes))*8 + ret >>= 64 - uint8(len(bytes))*8 + return +} + +// parseInt treats the given bytes as a big-endian, signed integer and returns +// the result. +func parseInt32(bytes []byte, fieldName string) (int32, error) { + if err := checkInteger(bytes, fieldName); err != nil { + return 0, err + } + ret64, err := parseInt64(bytes, fieldName) + if err != nil { + return 0, err + } + if ret64 != int64(int32(ret64)) { + return 0, StructuralError{"integer too large", fieldName} + } + return int32(ret64), nil +} + +var bigOne = big.NewInt(1) + +// parseBigInt treats the given bytes as a big-endian, signed integer and returns +// the result. +func parseBigInt(bytes []byte, fieldName string) (*big.Int, error) { + if err := checkInteger(bytes, fieldName); err != nil { + return nil, err + } + ret := new(big.Int) + if len(bytes) > 0 && bytes[0]&0x80 == 0x80 { + // This is a negative number. + notBytes := make([]byte, len(bytes)) + for i := range notBytes { + notBytes[i] = ^bytes[i] + } + ret.SetBytes(notBytes) + ret.Add(ret, bigOne) + ret.Neg(ret) + return ret, nil + } + ret.SetBytes(bytes) + return ret, nil +} + +// BIT STRING + +// BitString is the structure to use when you want an ASN.1 BIT STRING type. A +// bit string is padded up to the nearest byte in memory and the number of +// valid bits is recorded. Padding bits will be zero. +type BitString struct { + Bytes []byte // bits packed into bytes. + BitLength int // length in bits. +} + +// At returns the bit at the given index. If the index is out of range it +// returns false. +func (b BitString) At(i int) int { + if i < 0 || i >= b.BitLength { + return 0 + } + x := i / 8 + y := 7 - uint(i%8) + return int(b.Bytes[x]>>y) & 1 +} + +// RightAlign returns a slice where the padding bits are at the beginning. The +// slice may share memory with the BitString. +func (b BitString) RightAlign() []byte { + shift := uint(8 - (b.BitLength % 8)) + if shift == 8 || len(b.Bytes) == 0 { + return b.Bytes + } + + a := make([]byte, len(b.Bytes)) + a[0] = b.Bytes[0] >> shift + for i := 1; i < len(b.Bytes); i++ { + a[i] = b.Bytes[i-1] << (8 - shift) + a[i] |= b.Bytes[i] >> shift + } + + return a +} + +// parseBitString parses an ASN.1 bit string from the given byte slice and returns it. +func parseBitString(bytes []byte, fieldName string) (ret BitString, err error) { + if len(bytes) == 0 { + err = SyntaxError{"zero length BIT STRING", fieldName} + return + } + paddingBits := int(bytes[0]) + if paddingBits > 7 || + len(bytes) == 1 && paddingBits > 0 || + bytes[len(bytes)-1]&((1< 0 { + s += "." + } + s += strconv.Itoa(v) + } + + return s +} + +// parseObjectIdentifier parses an OBJECT IDENTIFIER from the given bytes and +// returns it. An object identifier is a sequence of variable length integers +// that are assigned in a hierarchy. +func parseObjectIdentifier(bytes []byte, fieldName string) (s []int, err error) { + if len(bytes) == 0 { + err = SyntaxError{"zero length OBJECT IDENTIFIER", fieldName} + return + } + + // In the worst case, we get two elements from the first byte (which is + // encoded differently) and then every varint is a single byte long. + s = make([]int, len(bytes)+1) + + // The first varint is 40*value1 + value2: + // According to this packing, value1 can take the values 0, 1 and 2 only. + // When value1 = 0 or value1 = 1, then value2 is <= 39. When value1 = 2, + // then there are no restrictions on value2. + v, offset, err := parseBase128Int(bytes, 0, fieldName) + if err != nil { + return + } + if v < 80 { + s[0] = v / 40 + s[1] = v % 40 + } else { + s[0] = 2 + s[1] = v - 80 + } + + i := 2 + for ; offset < len(bytes); i++ { + v, offset, err = parseBase128Int(bytes, offset, fieldName) + if err != nil { + return + } + s[i] = v + } + s = s[0:i] + return +} + +// ENUMERATED + +// An Enumerated is represented as a plain int. +type Enumerated int + +// FLAG + +// A Flag accepts any data and is set to true if present. +type Flag bool + +// parseBase128Int parses a base-128 encoded int from the given offset in the +// given byte slice. It returns the value and the new offset. +func parseBase128Int(bytes []byte, initOffset int, fieldName string) (ret, offset int, err error) { + offset = initOffset + var ret64 int64 + for shifted := 0; offset < len(bytes); shifted++ { + // 5 * 7 bits per byte == 35 bits of data + // Thus the representation is either non-minimal or too large for an int32 + if shifted == 5 { + err = StructuralError{"base 128 integer too large", fieldName} + return + } + ret64 <<= 7 + b := bytes[offset] + ret64 |= int64(b & 0x7f) + offset++ + if b&0x80 == 0 { + ret = int(ret64) + // Ensure that the returned value fits in an int on all platforms + if ret64 > math.MaxInt32 { + err = StructuralError{"base 128 integer too large", fieldName} + } + return + } + } + err = SyntaxError{"truncated base 128 integer", fieldName} + return +} + +// UTCTime + +func parseUTCTime(bytes []byte) (ret time.Time, err error) { + s := string(bytes) + + formatStr := "0601021504Z0700" + ret, err = time.Parse(formatStr, s) + if err != nil { + formatStr = "060102150405Z0700" + ret, err = time.Parse(formatStr, s) + } + if err != nil { + return + } + + if serialized := ret.Format(formatStr); serialized != s { + err = fmt.Errorf("asn1: time did not serialize back to the original value and may be invalid: given %q, but serialized as %q", s, serialized) + return + } + + if ret.Year() >= 2050 { + // UTCTime only encodes times prior to 2050. See https://tools.ietf.org/html/rfc5280#section-4.1.2.5.1 + ret = ret.AddDate(-100, 0, 0) + } + + return +} + +// parseGeneralizedTime parses the GeneralizedTime from the given byte slice +// and returns the resulting time. +func parseGeneralizedTime(bytes []byte) (ret time.Time, err error) { + const formatStr = "20060102150405Z0700" + s := string(bytes) + + if ret, err = time.Parse(formatStr, s); err != nil { + return + } + + if serialized := ret.Format(formatStr); serialized != s { + err = fmt.Errorf("asn1: time did not serialize back to the original value and may be invalid: given %q, but serialized as %q", s, serialized) + } + + return +} + +// NumericString + +// parseNumericString parses an ASN.1 NumericString from the given byte array +// and returns it. +func parseNumericString(bytes []byte, fieldName string) (ret string, err error) { + for _, b := range bytes { + if !isNumeric(b) { + return "", SyntaxError{"NumericString contains invalid character", fieldName} + } + } + return string(bytes), nil +} + +// isNumeric reports whether the given b is in the ASN.1 NumericString set. +func isNumeric(b byte) bool { + return '0' <= b && b <= '9' || + b == ' ' +} + +// PrintableString + +// parsePrintableString parses an ASN.1 PrintableString from the given byte +// array and returns it. +func parsePrintableString(bytes []byte, fieldName string) (ret string, err error) { + for _, b := range bytes { + if !isPrintable(b, allowAsterisk, allowAmpersand) { + err = SyntaxError{"PrintableString contains invalid character", fieldName} + return + } + } + ret = string(bytes) + return +} + +type asteriskFlag bool +type ampersandFlag bool + +const ( + allowAsterisk asteriskFlag = true + rejectAsterisk asteriskFlag = false + + allowAmpersand ampersandFlag = true + rejectAmpersand ampersandFlag = false +) + +// isPrintable reports whether the given b is in the ASN.1 PrintableString set. +// If asterisk is allowAsterisk then '*' is also allowed, reflecting existing +// practice. If ampersand is allowAmpersand then '&' is allowed as well. +func isPrintable(b byte, asterisk asteriskFlag, ampersand ampersandFlag) bool { + return 'a' <= b && b <= 'z' || + 'A' <= b && b <= 'Z' || + '0' <= b && b <= '9' || + '\'' <= b && b <= ')' || + '+' <= b && b <= '/' || + b == ' ' || + b == ':' || + b == '=' || + b == '?' || + // This is technically not allowed in a PrintableString. + // However, x509 certificates with wildcard strings don't + // always use the correct string type so we permit it. + (bool(asterisk) && b == '*') || + // This is not technically allowed either. However, not + // only is it relatively common, but there are also a + // handful of CA certificates that contain it. At least + // one of which will not expire until 2027. + (bool(ampersand) && b == '&') +} + +// IA5String + +// parseIA5String parses an ASN.1 IA5String (ASCII string) from the given +// byte slice and returns it. +func parseIA5String(bytes []byte, fieldName string) (ret string, err error) { + for _, b := range bytes { + if b >= utf8.RuneSelf { + err = SyntaxError{"IA5String contains invalid character", fieldName} + return + } + } + ret = string(bytes) + return +} + +// T61String + +// parseT61String parses an ASN.1 T61String (8-bit clean string) from the given +// byte slice and returns it. +func parseT61String(bytes []byte) (ret string, err error) { + return string(bytes), nil +} + +// UTF8String + +// parseUTF8String parses an ASN.1 UTF8String (raw UTF-8) from the given byte +// array and returns it. +func parseUTF8String(bytes []byte) (ret string, err error) { + if !utf8.Valid(bytes) { + return "", errors.New("asn1: invalid UTF-8 string") + } + return string(bytes), nil +} + +// A RawValue represents an undecoded ASN.1 object. +type RawValue struct { + Class, Tag int + IsCompound bool + Bytes []byte + FullBytes []byte // includes the tag and length +} + +// RawContent is used to signal that the undecoded, DER data needs to be +// preserved for a struct. To use it, the first field of the struct must have +// this type. It's an error for any of the other fields to have this type. +type RawContent []byte + +// Tagging + +// parseTagAndLength parses an ASN.1 tag and length pair from the given offset +// into a byte slice. It returns the parsed data and the new offset. SET and +// SET OF (tag 17) are mapped to SEQUENCE and SEQUENCE OF (tag 16) since we +// don't distinguish between ordered and unordered objects in this code. +func parseTagAndLength(bytes []byte, initOffset int, fieldName string) (ret tagAndLength, offset int, err error) { + offset = initOffset + // parseTagAndLength should not be called without at least a single + // byte to read. Thus this check is for robustness: + if offset >= len(bytes) { + err = errors.New("asn1: internal error in parseTagAndLength") + return + } + b := bytes[offset] + offset++ + ret.class = int(b >> 6) + ret.isCompound = b&0x20 == 0x20 + ret.tag = int(b & 0x1f) + + // If the bottom five bits are set, then the tag number is actually base 128 + // encoded afterwards + if ret.tag == 0x1f { + ret.tag, offset, err = parseBase128Int(bytes, offset, fieldName) + if err != nil { + return + } + // Tags should be encoded in minimal form. + if ret.tag < 0x1f { + err = SyntaxError{"non-minimal tag", fieldName} + return + } + } + if offset >= len(bytes) { + err = SyntaxError{"truncated tag or length", fieldName} + return + } + b = bytes[offset] + offset++ + if b&0x80 == 0 { + // The length is encoded in the bottom 7 bits. + ret.length = int(b & 0x7f) + } else { + // Bottom 7 bits give the number of length bytes to follow. + numBytes := int(b & 0x7f) + if numBytes == 0 { + err = SyntaxError{"indefinite length found (not DER)", fieldName} + return + } + ret.length = 0 + for i := 0; i < numBytes; i++ { + if offset >= len(bytes) { + err = SyntaxError{"truncated tag or length", fieldName} + return + } + b = bytes[offset] + offset++ + if ret.length >= 1<<23 { + // We can't shift ret.length up without + // overflowing. + err = StructuralError{"length too large", fieldName} + return + } + ret.length <<= 8 + ret.length |= int(b) + if ret.length == 0 { + // DER requires that lengths be minimal. + err = StructuralError{"superfluous leading zeros in length", fieldName} + return + } + } + // Short lengths must be encoded in short form. + if ret.length < 0x80 { + err = StructuralError{"non-minimal length", fieldName} + return + } + } + + return +} + +// parseSequenceOf is used for SEQUENCE OF and SET OF values. It tries to parse +// a number of ASN.1 values from the given byte slice and returns them as a +// slice of Go values of the given type. +func parseSequenceOf(bytes []byte, sliceType reflect.Type, elemType reflect.Type, fieldName string) (ret reflect.Value, err error) { + matchAny, expectedTag, compoundType, ok := getUniversalType(elemType) + if !ok { + err = StructuralError{"unknown Go type for slice", fieldName} + return + } + + // First we iterate over the input and count the number of elements, + // checking that the types are correct in each case. + numElements := 0 + for offset := 0; offset < len(bytes); { + var t tagAndLength + t, offset, err = parseTagAndLength(bytes, offset, fieldName) + if err != nil { + return + } + switch t.tag { + case TagIA5String, TagGeneralString, TagT61String, TagUTF8String, TagNumericString: + // We pretend that various other string types are + // PRINTABLE STRINGs so that a sequence of them can be + // parsed into a []string. + t.tag = TagPrintableString + case TagGeneralizedTime, TagUTCTime: + // Likewise, both time types are treated the same. + t.tag = TagUTCTime + } + + if !matchAny && (t.class != ClassUniversal || t.isCompound != compoundType || t.tag != expectedTag) { + err = StructuralError{fmt.Sprintf("sequence tag mismatch (got:%+v, want:0/%d/%t)", t, expectedTag, compoundType), fieldName} + return + } + if invalidLength(offset, t.length, len(bytes)) { + err = SyntaxError{"truncated sequence", fieldName} + return + } + offset += t.length + numElements++ + } + ret = reflect.MakeSlice(sliceType, numElements, numElements) + params := fieldParameters{} + offset := 0 + for i := 0; i < numElements; i++ { + offset, err = parseField(ret.Index(i), bytes, offset, params) + if err != nil { + return + } + } + return +} + +var ( + bitStringType = reflect.TypeOf(BitString{}) + objectIdentifierType = reflect.TypeOf(ObjectIdentifier{}) + enumeratedType = reflect.TypeOf(Enumerated(0)) + flagType = reflect.TypeOf(Flag(false)) + timeType = reflect.TypeOf(time.Time{}) + rawValueType = reflect.TypeOf(RawValue{}) + rawContentsType = reflect.TypeOf(RawContent(nil)) + bigIntType = reflect.TypeOf(new(big.Int)) +) + +// invalidLength returns true iff offset + length > sliceLength, or if the +// addition would overflow. +func invalidLength(offset, length, sliceLength int) bool { + return offset+length < offset || offset+length > sliceLength +} + +// Tests whether the data in |bytes| would be a valid ISO8859-1 string. +// Clearly, a sequence of bytes comprised solely of valid ISO8859-1 +// codepoints does not imply that the encoding MUST be ISO8859-1, rather that +// you would not encounter an error trying to interpret the data as such. +func couldBeISO8859_1(bytes []byte) bool { + for _, b := range bytes { + if b < 0x20 || (b >= 0x7F && b < 0xA0) { + return false + } + } + return true +} + +// Checks whether the data in |bytes| would be a valid T.61 string. +// Clearly, a sequence of bytes comprised solely of valid T.61 +// codepoints does not imply that the encoding MUST be T.61, rather that +// you would not encounter an error trying to interpret the data as such. +func couldBeT61(bytes []byte) bool { + for _, b := range bytes { + switch b { + case 0x00: + // Since we're guessing at (incorrect) encodings for a + // PrintableString, we'll err on the side of caution and disallow + // strings with a NUL in them, don't want to re-create a PayPal NUL + // situation in monitors. + fallthrough + case 0x23, 0x24, 0x5C, 0x5E, 0x60, 0x7B, 0x7D, 0x7E, 0xA5, 0xA6, 0xAC, 0xAD, 0xAE, 0xAF, + 0xB9, 0xBA, 0xC0, 0xC9, 0xD0, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7, 0xD8, 0xD9, + 0xDA, 0xDB, 0xDC, 0xDE, 0xDF, 0xE5, 0xFF: + // These are all invalid code points in T.61, so it can't be a T.61 string. + return false + } + } + return true +} + +// Converts the data in |bytes| to the equivalent UTF-8 string. +func iso8859_1ToUTF8(bytes []byte) string { + buf := make([]rune, len(bytes)) + for i, b := range bytes { + buf[i] = rune(b) + } + return string(buf) +} + +// parseField is the main parsing function. Given a byte slice and an offset +// into the array, it will try to parse a suitable ASN.1 value out and store it +// in the given Value. +func parseField(v reflect.Value, bytes []byte, initOffset int, params fieldParameters) (offset int, err error) { + offset = initOffset + fieldType := v.Type() + + // If we have run out of data, it may be that there are optional elements at the end. + if offset == len(bytes) { + if !setDefaultValue(v, params) { + err = SyntaxError{"sequence truncated", params.name} + } + return + } + + // Deal with the ANY type. + if ifaceType := fieldType; ifaceType.Kind() == reflect.Interface && ifaceType.NumMethod() == 0 { + var t tagAndLength + t, offset, err = parseTagAndLength(bytes, offset, params.name) + if err != nil { + return + } + if invalidLength(offset, t.length, len(bytes)) { + err = SyntaxError{"data truncated", params.name} + return + } + var result interface{} + if !t.isCompound && t.class == ClassUniversal { + innerBytes := bytes[offset : offset+t.length] + switch t.tag { + case TagPrintableString: + result, err = parsePrintableString(innerBytes, params.name) + if err != nil && strings.Contains(err.Error(), "PrintableString contains invalid character") { + // Probably an ISO8859-1 string stuffed in, check if it + // would be valid and assume that's what's happened if so, + // otherwise try T.61, failing that give up and just assign + // the bytes + switch { + case couldBeISO8859_1(innerBytes): + result, err = iso8859_1ToUTF8(innerBytes), nil + case couldBeT61(innerBytes): + result, err = parseT61String(innerBytes) + default: + result = nil + err = errors.New("PrintableString contains invalid character, but couldn't determine correct String type.") + } + } + case TagNumericString: + result, err = parseNumericString(innerBytes, params.name) + case TagIA5String: + result, err = parseIA5String(innerBytes, params.name) + case TagT61String: + result, err = parseT61String(innerBytes) + case TagUTF8String: + result, err = parseUTF8String(innerBytes) + case TagInteger: + result, err = parseInt64(innerBytes, params.name) + case TagBitString: + result, err = parseBitString(innerBytes, params.name) + case TagOID: + result, err = parseObjectIdentifier(innerBytes, params.name) + case TagUTCTime: + result, err = parseUTCTime(innerBytes) + case TagGeneralizedTime: + result, err = parseGeneralizedTime(innerBytes) + case TagOctetString: + result = innerBytes + default: + // If we don't know how to handle the type, we just leave Value as nil. + } + } + offset += t.length + if err != nil { + return + } + if result != nil { + v.Set(reflect.ValueOf(result)) + } + return + } + + t, offset, err := parseTagAndLength(bytes, offset, params.name) + if err != nil { + return + } + if params.explicit { + expectedClass := ClassContextSpecific + if params.application { + expectedClass = ClassApplication + } + if offset == len(bytes) { + err = StructuralError{"explicit tag has no child", params.name} + return + } + if t.class == expectedClass && t.tag == *params.tag && (t.length == 0 || t.isCompound) { + if fieldType == rawValueType { + // The inner element should not be parsed for RawValues. + } else if t.length > 0 { + t, offset, err = parseTagAndLength(bytes, offset, params.name) + if err != nil { + return + } + } else { + if fieldType != flagType { + err = StructuralError{"zero length explicit tag was not an asn1.Flag", params.name} + return + } + v.SetBool(true) + return + } + } else { + // The tags didn't match, it might be an optional element. + ok := setDefaultValue(v, params) + if ok { + offset = initOffset + } else { + err = StructuralError{"explicitly tagged member didn't match", params.name} + } + return + } + } + + matchAny, universalTag, compoundType, ok1 := getUniversalType(fieldType) + if !ok1 { + err = StructuralError{fmt.Sprintf("unknown Go type: %v", fieldType), params.name} + return + } + + // Special case for strings: all the ASN.1 string types map to the Go + // type string. getUniversalType returns the tag for PrintableString + // when it sees a string, so if we see a different string type on the + // wire, we change the universal type to match. + if universalTag == TagPrintableString { + if t.class == ClassUniversal { + switch t.tag { + case TagIA5String, TagGeneralString, TagT61String, TagUTF8String, TagNumericString: + universalTag = t.tag + } + } else if params.stringType != 0 { + universalTag = params.stringType + } + } + + // Special case for time: UTCTime and GeneralizedTime both map to the + // Go type time.Time. + if universalTag == TagUTCTime && t.tag == TagGeneralizedTime && t.class == ClassUniversal { + universalTag = TagGeneralizedTime + } + + if params.set { + universalTag = TagSet + } + + matchAnyClassAndTag := matchAny + expectedClass := ClassUniversal + expectedTag := universalTag + + if !params.explicit && params.tag != nil { + expectedClass = ClassContextSpecific + expectedTag = *params.tag + matchAnyClassAndTag = false + } + + if !params.explicit && params.application && params.tag != nil { + expectedClass = ClassApplication + expectedTag = *params.tag + matchAnyClassAndTag = false + } + + // We have unwrapped any explicit tagging at this point. + if !matchAnyClassAndTag && (t.class != expectedClass || t.tag != expectedTag) || + (!matchAny && t.isCompound != compoundType) { + // Tags don't match. Again, it could be an optional element. + ok := setDefaultValue(v, params) + if ok { + offset = initOffset + } else { + err = StructuralError{fmt.Sprintf("tags don't match (%d vs %+v) %+v %s @%d", expectedTag, t, params, fieldType.Name(), offset), params.name} + } + return + } + if invalidLength(offset, t.length, len(bytes)) { + err = SyntaxError{"data truncated", params.name} + return + } + innerBytes := bytes[offset : offset+t.length] + offset += t.length + + // We deal with the structures defined in this package first. + switch fieldType { + case rawValueType: + result := RawValue{t.class, t.tag, t.isCompound, innerBytes, bytes[initOffset:offset]} + v.Set(reflect.ValueOf(result)) + return + case objectIdentifierType: + newSlice, err1 := parseObjectIdentifier(innerBytes, params.name) + v.Set(reflect.MakeSlice(v.Type(), len(newSlice), len(newSlice))) + if err1 == nil { + reflect.Copy(v, reflect.ValueOf(newSlice)) + } + err = err1 + return + case bitStringType: + bs, err1 := parseBitString(innerBytes, params.name) + if err1 == nil { + v.Set(reflect.ValueOf(bs)) + } + err = err1 + return + case timeType: + var time time.Time + var err1 error + if universalTag == TagUTCTime { + time, err1 = parseUTCTime(innerBytes) + } else { + time, err1 = parseGeneralizedTime(innerBytes) + } + if err1 == nil { + v.Set(reflect.ValueOf(time)) + } + err = err1 + return + case enumeratedType: + parsedInt, err1 := parseInt32(innerBytes, params.name) + if err1 == nil { + v.SetInt(int64(parsedInt)) + } + err = err1 + return + case flagType: + v.SetBool(true) + return + case bigIntType: + parsedInt, err1 := parseBigInt(innerBytes, params.name) + if err1 == nil { + v.Set(reflect.ValueOf(parsedInt)) + } + err = err1 + return + } + switch val := v; val.Kind() { + case reflect.Bool: + parsedBool, err1 := parseBool(innerBytes, params.name) + if err1 == nil { + val.SetBool(parsedBool) + } + err = err1 + return + case reflect.Int, reflect.Int32, reflect.Int64: + if val.Type().Size() == 4 { + parsedInt, err1 := parseInt32(innerBytes, params.name) + if err1 == nil { + val.SetInt(int64(parsedInt)) + } + err = err1 + } else { + parsedInt, err1 := parseInt64(innerBytes, params.name) + if err1 == nil { + val.SetInt(parsedInt) + } + err = err1 + } + return + // TODO(dfc) Add support for the remaining integer types + case reflect.Struct: + structType := fieldType + + for i := 0; i < structType.NumField(); i++ { + if structType.Field(i).PkgPath != "" { + err = StructuralError{"struct contains unexported fields", structType.Field(i).Name} + return + } + } + + if structType.NumField() > 0 && + structType.Field(0).Type == rawContentsType { + bytes := bytes[initOffset:offset] + val.Field(0).Set(reflect.ValueOf(RawContent(bytes))) + } + + innerOffset := 0 + for i := 0; i < structType.NumField(); i++ { + field := structType.Field(i) + if i == 0 && field.Type == rawContentsType { + continue + } + innerParams := parseFieldParameters(field.Tag.Get("asn1")) + innerParams.name = field.Name + innerOffset, err = parseField(val.Field(i), innerBytes, innerOffset, innerParams) + if err != nil { + return + } + } + // We allow extra bytes at the end of the SEQUENCE because + // adding elements to the end has been used in X.509 as the + // version numbers have increased. + return + case reflect.Slice: + sliceType := fieldType + if sliceType.Elem().Kind() == reflect.Uint8 { + val.Set(reflect.MakeSlice(sliceType, len(innerBytes), len(innerBytes))) + reflect.Copy(val, reflect.ValueOf(innerBytes)) + return + } + newSlice, err1 := parseSequenceOf(innerBytes, sliceType, sliceType.Elem(), params.name) + if err1 == nil { + val.Set(newSlice) + } + err = err1 + return + case reflect.String: + var v string + switch universalTag { + case TagPrintableString: + v, err = parsePrintableString(innerBytes, params.name) + case TagNumericString: + v, err = parseNumericString(innerBytes, params.name) + case TagIA5String: + v, err = parseIA5String(innerBytes, params.name) + case TagT61String: + v, err = parseT61String(innerBytes) + case TagUTF8String: + v, err = parseUTF8String(innerBytes) + case TagGeneralString: + // GeneralString is specified in ISO-2022/ECMA-35, + // A brief review suggests that it includes structures + // that allow the encoding to change midstring and + // such. We give up and pass it as an 8-bit string. + v, err = parseT61String(innerBytes) + default: + err = SyntaxError{fmt.Sprintf("internal error: unknown string type %d", universalTag), params.name} + } + if err == nil { + val.SetString(v) + } + return + } + err = StructuralError{"unsupported: " + v.Type().String(), params.name} + return +} + +// canHaveDefaultValue reports whether k is a Kind that we will set a default +// value for. (A signed integer, essentially.) +func canHaveDefaultValue(k reflect.Kind) bool { + switch k { + case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: + return true + } + + return false +} + +// setDefaultValue is used to install a default value, from a tag string, into +// a Value. It is successful if the field was optional, even if a default value +// wasn't provided or it failed to install it into the Value. +func setDefaultValue(v reflect.Value, params fieldParameters) (ok bool) { + if !params.optional { + return + } + ok = true + if params.defaultValue == nil { + return + } + if canHaveDefaultValue(v.Kind()) { + v.SetInt(*params.defaultValue) + } + return +} + +// Unmarshal parses the DER-encoded ASN.1 data structure b +// and uses the reflect package to fill in an arbitrary value pointed at by val. +// Because Unmarshal uses the reflect package, the structs +// being written to must use upper case field names. +// +// An ASN.1 INTEGER can be written to an int, int32, int64, +// or *big.Int (from the math/big package). +// If the encoded value does not fit in the Go type, +// Unmarshal returns a parse error. +// +// An ASN.1 BIT STRING can be written to a BitString. +// +// An ASN.1 OCTET STRING can be written to a []byte. +// +// An ASN.1 OBJECT IDENTIFIER can be written to an +// ObjectIdentifier. +// +// An ASN.1 ENUMERATED can be written to an Enumerated. +// +// An ASN.1 UTCTIME or GENERALIZEDTIME can be written to a time.Time. +// +// An ASN.1 PrintableString, IA5String, or NumericString can be written to a string. +// +// Any of the above ASN.1 values can be written to an interface{}. +// The value stored in the interface has the corresponding Go type. +// For integers, that type is int64. +// +// An ASN.1 SEQUENCE OF x or SET OF x can be written +// to a slice if an x can be written to the slice's element type. +// +// An ASN.1 SEQUENCE or SET can be written to a struct +// if each of the elements in the sequence can be +// written to the corresponding element in the struct. +// +// The following tags on struct fields have special meaning to Unmarshal: +// +// application specifies that an APPLICATION tag is used +// default:x sets the default value for optional integer fields (only used if optional is also present) +// explicit specifies that an additional, explicit tag wraps the implicit one +// optional marks the field as ASN.1 OPTIONAL +// set causes a SET, rather than a SEQUENCE type to be expected +// tag:x specifies the ASN.1 tag number; implies ASN.1 CONTEXT SPECIFIC +// +// If the type of the first field of a structure is RawContent then the raw +// ASN1 contents of the struct will be stored in it. +// +// If the type name of a slice element ends with "SET" then it's treated as if +// the "set" tag was set on it. This can be used with nested slices where a +// struct tag cannot be given. +// +// Other ASN.1 types are not supported; if it encounters them, +// Unmarshal returns a parse error. +func Unmarshal(b []byte, val interface{}) (rest []byte, err error) { + return UnmarshalWithParams(b, val, "") +} + +// UnmarshalWithParams allows field parameters to be specified for the +// top-level element. The form of the params is the same as the field tags. +func UnmarshalWithParams(b []byte, val interface{}, params string) (rest []byte, err error) { + v := reflect.ValueOf(val).Elem() + offset, err := parseField(v, b, 0, parseFieldParameters(params)) + if err != nil { + return nil, err + } + return b[offset:], nil +} diff --git a/vendor/github.com/google/certificate-transparency-go/asn1/common.go b/vendor/github.com/google/certificate-transparency-go/asn1/common.go new file mode 100644 index 0000000000000..3c40856bec3ab --- /dev/null +++ b/vendor/github.com/google/certificate-transparency-go/asn1/common.go @@ -0,0 +1,177 @@ +// Copyright 2009 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package asn1 + +import ( + "reflect" + "strconv" + "strings" +) + +// ASN.1 objects have metadata preceding them: +// the tag: the type of the object +// a flag denoting if this object is compound or not +// the class type: the namespace of the tag +// the length of the object, in bytes + +// Here are some standard tags and classes + +// ASN.1 tags represent the type of the following object. +const ( + TagBoolean = 1 + TagInteger = 2 + TagBitString = 3 + TagOctetString = 4 + TagNull = 5 + TagOID = 6 + TagEnum = 10 + TagUTF8String = 12 + TagSequence = 16 + TagSet = 17 + TagNumericString = 18 + TagPrintableString = 19 + TagT61String = 20 + TagIA5String = 22 + TagUTCTime = 23 + TagGeneralizedTime = 24 + TagGeneralString = 27 +) + +// ASN.1 class types represent the namespace of the tag. +const ( + ClassUniversal = 0 + ClassApplication = 1 + ClassContextSpecific = 2 + ClassPrivate = 3 +) + +type tagAndLength struct { + class, tag, length int + isCompound bool +} + +// ASN.1 has IMPLICIT and EXPLICIT tags, which can be translated as "instead +// of" and "in addition to". When not specified, every primitive type has a +// default tag in the UNIVERSAL class. +// +// For example: a BIT STRING is tagged [UNIVERSAL 3] by default (although ASN.1 +// doesn't actually have a UNIVERSAL keyword). However, by saying [IMPLICIT +// CONTEXT-SPECIFIC 42], that means that the tag is replaced by another. +// +// On the other hand, if it said [EXPLICIT CONTEXT-SPECIFIC 10], then an +// /additional/ tag would wrap the default tag. This explicit tag will have the +// compound flag set. +// +// (This is used in order to remove ambiguity with optional elements.) +// +// You can layer EXPLICIT and IMPLICIT tags to an arbitrary depth, however we +// don't support that here. We support a single layer of EXPLICIT or IMPLICIT +// tagging with tag strings on the fields of a structure. + +// fieldParameters is the parsed representation of tag string from a structure field. +type fieldParameters struct { + optional bool // true iff the field is OPTIONAL + explicit bool // true iff an EXPLICIT tag is in use. + application bool // true iff an APPLICATION tag is in use. + defaultValue *int64 // a default value for INTEGER typed fields (maybe nil). + tag *int // the EXPLICIT or IMPLICIT tag (maybe nil). + stringType int // the string tag to use when marshaling. + timeType int // the time tag to use when marshaling. + set bool // true iff this should be encoded as a SET + omitEmpty bool // true iff this should be omitted if empty when marshaling. + name string // name of field for better diagnostics + + // Invariants: + // if explicit is set, tag is non-nil. +} + +// Given a tag string with the format specified in the package comment, +// parseFieldParameters will parse it into a fieldParameters structure, +// ignoring unknown parts of the string. +func parseFieldParameters(str string) (ret fieldParameters) { + for _, part := range strings.Split(str, ",") { + switch { + case part == "optional": + ret.optional = true + case part == "explicit": + ret.explicit = true + if ret.tag == nil { + ret.tag = new(int) + } + case part == "generalized": + ret.timeType = TagGeneralizedTime + case part == "utc": + ret.timeType = TagUTCTime + case part == "ia5": + ret.stringType = TagIA5String + case part == "printable": + ret.stringType = TagPrintableString + case part == "numeric": + ret.stringType = TagNumericString + case part == "utf8": + ret.stringType = TagUTF8String + case strings.HasPrefix(part, "default:"): + i, err := strconv.ParseInt(part[8:], 10, 64) + if err == nil { + ret.defaultValue = new(int64) + *ret.defaultValue = i + } + case strings.HasPrefix(part, "tag:"): + i, err := strconv.Atoi(part[4:]) + if err == nil { + ret.tag = new(int) + *ret.tag = i + } + case part == "set": + ret.set = true + case part == "application": + ret.application = true + if ret.tag == nil { + ret.tag = new(int) + } + case part == "omitempty": + ret.omitEmpty = true + } + } + return +} + +// Given a reflected Go type, getUniversalType returns the default tag number +// and expected compound flag. +func getUniversalType(t reflect.Type) (matchAny bool, tagNumber int, isCompound, ok bool) { + switch t { + case rawValueType: + return true, -1, false, true + case objectIdentifierType: + return false, TagOID, false, true + case bitStringType: + return false, TagBitString, false, true + case timeType: + return false, TagUTCTime, false, true + case enumeratedType: + return false, TagEnum, false, true + case bigIntType: + return false, TagInteger, false, true + } + switch t.Kind() { + case reflect.Bool: + return false, TagBoolean, false, true + case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: + return false, TagInteger, false, true + case reflect.Struct: + return false, TagSequence, true, true + case reflect.Slice: + if t.Elem().Kind() == reflect.Uint8 { + return false, TagOctetString, false, true + } + if strings.HasSuffix(t.Name(), "SET") { + return false, TagSet, true, true + } + return false, TagSequence, true, true + case reflect.String: + return false, TagPrintableString, false, true + } + return false, 0, false, false +} diff --git a/vendor/github.com/google/certificate-transparency-go/asn1/marshal.go b/vendor/github.com/google/certificate-transparency-go/asn1/marshal.go new file mode 100644 index 0000000000000..22591282f655f --- /dev/null +++ b/vendor/github.com/google/certificate-transparency-go/asn1/marshal.go @@ -0,0 +1,689 @@ +// Copyright 2009 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package asn1 + +import ( + "errors" + "fmt" + "math/big" + "reflect" + "time" + "unicode/utf8" +) + +var ( + byte00Encoder encoder = byteEncoder(0x00) + byteFFEncoder encoder = byteEncoder(0xff) +) + +// encoder represents an ASN.1 element that is waiting to be marshaled. +type encoder interface { + // Len returns the number of bytes needed to marshal this element. + Len() int + // Encode encodes this element by writing Len() bytes to dst. + Encode(dst []byte) +} + +type byteEncoder byte + +func (c byteEncoder) Len() int { + return 1 +} + +func (c byteEncoder) Encode(dst []byte) { + dst[0] = byte(c) +} + +type bytesEncoder []byte + +func (b bytesEncoder) Len() int { + return len(b) +} + +func (b bytesEncoder) Encode(dst []byte) { + if copy(dst, b) != len(b) { + panic("internal error") + } +} + +type stringEncoder string + +func (s stringEncoder) Len() int { + return len(s) +} + +func (s stringEncoder) Encode(dst []byte) { + if copy(dst, s) != len(s) { + panic("internal error") + } +} + +type multiEncoder []encoder + +func (m multiEncoder) Len() int { + var size int + for _, e := range m { + size += e.Len() + } + return size +} + +func (m multiEncoder) Encode(dst []byte) { + var off int + for _, e := range m { + e.Encode(dst[off:]) + off += e.Len() + } +} + +type taggedEncoder struct { + // scratch contains temporary space for encoding the tag and length of + // an element in order to avoid extra allocations. + scratch [8]byte + tag encoder + body encoder +} + +func (t *taggedEncoder) Len() int { + return t.tag.Len() + t.body.Len() +} + +func (t *taggedEncoder) Encode(dst []byte) { + t.tag.Encode(dst) + t.body.Encode(dst[t.tag.Len():]) +} + +type int64Encoder int64 + +func (i int64Encoder) Len() int { + n := 1 + + for i > 127 { + n++ + i >>= 8 + } + + for i < -128 { + n++ + i >>= 8 + } + + return n +} + +func (i int64Encoder) Encode(dst []byte) { + n := i.Len() + + for j := 0; j < n; j++ { + dst[j] = byte(i >> uint((n-1-j)*8)) + } +} + +func base128IntLength(n int64) int { + if n == 0 { + return 1 + } + + l := 0 + for i := n; i > 0; i >>= 7 { + l++ + } + + return l +} + +func appendBase128Int(dst []byte, n int64) []byte { + l := base128IntLength(n) + + for i := l - 1; i >= 0; i-- { + o := byte(n >> uint(i*7)) + o &= 0x7f + if i != 0 { + o |= 0x80 + } + + dst = append(dst, o) + } + + return dst +} + +func makeBigInt(n *big.Int, fieldName string) (encoder, error) { + if n == nil { + return nil, StructuralError{"empty integer", fieldName} + } + + if n.Sign() < 0 { + // A negative number has to be converted to two's-complement + // form. So we'll invert and subtract 1. If the + // most-significant-bit isn't set then we'll need to pad the + // beginning with 0xff in order to keep the number negative. + nMinus1 := new(big.Int).Neg(n) + nMinus1.Sub(nMinus1, bigOne) + bytes := nMinus1.Bytes() + for i := range bytes { + bytes[i] ^= 0xff + } + if len(bytes) == 0 || bytes[0]&0x80 == 0 { + return multiEncoder([]encoder{byteFFEncoder, bytesEncoder(bytes)}), nil + } + return bytesEncoder(bytes), nil + } else if n.Sign() == 0 { + // Zero is written as a single 0 zero rather than no bytes. + return byte00Encoder, nil + } else { + bytes := n.Bytes() + if len(bytes) > 0 && bytes[0]&0x80 != 0 { + // We'll have to pad this with 0x00 in order to stop it + // looking like a negative number. + return multiEncoder([]encoder{byte00Encoder, bytesEncoder(bytes)}), nil + } + return bytesEncoder(bytes), nil + } +} + +func appendLength(dst []byte, i int) []byte { + n := lengthLength(i) + + for ; n > 0; n-- { + dst = append(dst, byte(i>>uint((n-1)*8))) + } + + return dst +} + +func lengthLength(i int) (numBytes int) { + numBytes = 1 + for i > 255 { + numBytes++ + i >>= 8 + } + return +} + +func appendTagAndLength(dst []byte, t tagAndLength) []byte { + b := uint8(t.class) << 6 + if t.isCompound { + b |= 0x20 + } + if t.tag >= 31 { + b |= 0x1f + dst = append(dst, b) + dst = appendBase128Int(dst, int64(t.tag)) + } else { + b |= uint8(t.tag) + dst = append(dst, b) + } + + if t.length >= 128 { + l := lengthLength(t.length) + dst = append(dst, 0x80|byte(l)) + dst = appendLength(dst, t.length) + } else { + dst = append(dst, byte(t.length)) + } + + return dst +} + +type bitStringEncoder BitString + +func (b bitStringEncoder) Len() int { + return len(b.Bytes) + 1 +} + +func (b bitStringEncoder) Encode(dst []byte) { + dst[0] = byte((8 - b.BitLength%8) % 8) + if copy(dst[1:], b.Bytes) != len(b.Bytes) { + panic("internal error") + } +} + +type oidEncoder []int + +func (oid oidEncoder) Len() int { + l := base128IntLength(int64(oid[0]*40 + oid[1])) + for i := 2; i < len(oid); i++ { + l += base128IntLength(int64(oid[i])) + } + return l +} + +func (oid oidEncoder) Encode(dst []byte) { + dst = appendBase128Int(dst[:0], int64(oid[0]*40+oid[1])) + for i := 2; i < len(oid); i++ { + dst = appendBase128Int(dst, int64(oid[i])) + } +} + +func makeObjectIdentifier(oid []int, fieldName string) (e encoder, err error) { + if len(oid) < 2 || oid[0] > 2 || (oid[0] < 2 && oid[1] >= 40) { + return nil, StructuralError{"invalid object identifier", fieldName} + } + + return oidEncoder(oid), nil +} + +func makePrintableString(s, fieldName string) (e encoder, err error) { + for i := 0; i < len(s); i++ { + // The asterisk is often used in PrintableString, even though + // it is invalid. If a PrintableString was specifically + // requested then the asterisk is permitted by this code. + // Ampersand is allowed in parsing due a handful of CA + // certificates, however when making new certificates + // it is rejected. + if !isPrintable(s[i], allowAsterisk, rejectAmpersand) { + return nil, StructuralError{"PrintableString contains invalid character", fieldName} + } + } + + return stringEncoder(s), nil +} + +func makeIA5String(s, fieldName string) (e encoder, err error) { + for i := 0; i < len(s); i++ { + if s[i] > 127 { + return nil, StructuralError{"IA5String contains invalid character", fieldName} + } + } + + return stringEncoder(s), nil +} + +func makeNumericString(s string, fieldName string) (e encoder, err error) { + for i := 0; i < len(s); i++ { + if !isNumeric(s[i]) { + return nil, StructuralError{"NumericString contains invalid character", fieldName} + } + } + + return stringEncoder(s), nil +} + +func makeUTF8String(s string) encoder { + return stringEncoder(s) +} + +func appendTwoDigits(dst []byte, v int) []byte { + return append(dst, byte('0'+(v/10)%10), byte('0'+v%10)) +} + +func appendFourDigits(dst []byte, v int) []byte { + var bytes [4]byte + for i := range bytes { + bytes[3-i] = '0' + byte(v%10) + v /= 10 + } + return append(dst, bytes[:]...) +} + +func outsideUTCRange(t time.Time) bool { + year := t.Year() + return year < 1950 || year >= 2050 +} + +func makeUTCTime(t time.Time, fieldName string) (e encoder, err error) { + dst := make([]byte, 0, 18) + + dst, err = appendUTCTime(dst, t, fieldName) + if err != nil { + return nil, err + } + + return bytesEncoder(dst), nil +} + +func makeGeneralizedTime(t time.Time, fieldName string) (e encoder, err error) { + dst := make([]byte, 0, 20) + + dst, err = appendGeneralizedTime(dst, t, fieldName) + if err != nil { + return nil, err + } + + return bytesEncoder(dst), nil +} + +func appendUTCTime(dst []byte, t time.Time, fieldName string) (ret []byte, err error) { + year := t.Year() + + switch { + case 1950 <= year && year < 2000: + dst = appendTwoDigits(dst, year-1900) + case 2000 <= year && year < 2050: + dst = appendTwoDigits(dst, year-2000) + default: + return nil, StructuralError{"cannot represent time as UTCTime", fieldName} + } + + return appendTimeCommon(dst, t), nil +} + +func appendGeneralizedTime(dst []byte, t time.Time, fieldName string) (ret []byte, err error) { + year := t.Year() + if year < 0 || year > 9999 { + return nil, StructuralError{"cannot represent time as GeneralizedTime", fieldName} + } + + dst = appendFourDigits(dst, year) + + return appendTimeCommon(dst, t), nil +} + +func appendTimeCommon(dst []byte, t time.Time) []byte { + _, month, day := t.Date() + + dst = appendTwoDigits(dst, int(month)) + dst = appendTwoDigits(dst, day) + + hour, min, sec := t.Clock() + + dst = appendTwoDigits(dst, hour) + dst = appendTwoDigits(dst, min) + dst = appendTwoDigits(dst, sec) + + _, offset := t.Zone() + + switch { + case offset/60 == 0: + return append(dst, 'Z') + case offset > 0: + dst = append(dst, '+') + case offset < 0: + dst = append(dst, '-') + } + + offsetMinutes := offset / 60 + if offsetMinutes < 0 { + offsetMinutes = -offsetMinutes + } + + dst = appendTwoDigits(dst, offsetMinutes/60) + dst = appendTwoDigits(dst, offsetMinutes%60) + + return dst +} + +func stripTagAndLength(in []byte) []byte { + _, offset, err := parseTagAndLength(in, 0, "") + if err != nil { + return in + } + return in[offset:] +} + +func makeBody(value reflect.Value, params fieldParameters) (e encoder, err error) { + switch value.Type() { + case flagType: + return bytesEncoder(nil), nil + case timeType: + t := value.Interface().(time.Time) + if params.timeType == TagGeneralizedTime || outsideUTCRange(t) { + return makeGeneralizedTime(t, params.name) + } + return makeUTCTime(t, params.name) + case bitStringType: + return bitStringEncoder(value.Interface().(BitString)), nil + case objectIdentifierType: + return makeObjectIdentifier(value.Interface().(ObjectIdentifier), params.name) + case bigIntType: + return makeBigInt(value.Interface().(*big.Int), params.name) + } + + switch v := value; v.Kind() { + case reflect.Bool: + if v.Bool() { + return byteFFEncoder, nil + } + return byte00Encoder, nil + case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: + return int64Encoder(v.Int()), nil + case reflect.Struct: + t := v.Type() + + for i := 0; i < t.NumField(); i++ { + if t.Field(i).PkgPath != "" { + return nil, StructuralError{"struct contains unexported fields", t.Field(i).Name} + } + } + + startingField := 0 + + n := t.NumField() + if n == 0 { + return bytesEncoder(nil), nil + } + + // If the first element of the structure is a non-empty + // RawContents, then we don't bother serializing the rest. + if t.Field(0).Type == rawContentsType { + s := v.Field(0) + if s.Len() > 0 { + bytes := s.Bytes() + /* The RawContents will contain the tag and + * length fields but we'll also be writing + * those ourselves, so we strip them out of + * bytes */ + return bytesEncoder(stripTagAndLength(bytes)), nil + } + + startingField = 1 + } + + switch n1 := n - startingField; n1 { + case 0: + return bytesEncoder(nil), nil + case 1: + return makeField(v.Field(startingField), parseFieldParameters(t.Field(startingField).Tag.Get("asn1"))) + default: + m := make([]encoder, n1) + for i := 0; i < n1; i++ { + m[i], err = makeField(v.Field(i+startingField), parseFieldParameters(t.Field(i+startingField).Tag.Get("asn1"))) + if err != nil { + return nil, err + } + } + + return multiEncoder(m), nil + } + case reflect.Slice: + sliceType := v.Type() + if sliceType.Elem().Kind() == reflect.Uint8 { + return bytesEncoder(v.Bytes()), nil + } + + var fp fieldParameters + + switch l := v.Len(); l { + case 0: + return bytesEncoder(nil), nil + case 1: + return makeField(v.Index(0), fp) + default: + m := make([]encoder, l) + + for i := 0; i < l; i++ { + m[i], err = makeField(v.Index(i), fp) + if err != nil { + return nil, err + } + } + + return multiEncoder(m), nil + } + case reflect.String: + switch params.stringType { + case TagIA5String: + return makeIA5String(v.String(), params.name) + case TagPrintableString: + return makePrintableString(v.String(), params.name) + case TagNumericString: + return makeNumericString(v.String(), params.name) + default: + return makeUTF8String(v.String()), nil + } + } + + return nil, StructuralError{"unknown Go type", params.name} +} + +func makeField(v reflect.Value, params fieldParameters) (e encoder, err error) { + if !v.IsValid() { + return nil, fmt.Errorf("asn1: cannot marshal nil value") + } + // If the field is an interface{} then recurse into it. + if v.Kind() == reflect.Interface && v.Type().NumMethod() == 0 { + return makeField(v.Elem(), params) + } + + if v.Kind() == reflect.Slice && v.Len() == 0 && params.omitEmpty { + return bytesEncoder(nil), nil + } + + if params.optional && params.defaultValue != nil && canHaveDefaultValue(v.Kind()) { + defaultValue := reflect.New(v.Type()).Elem() + defaultValue.SetInt(*params.defaultValue) + + if reflect.DeepEqual(v.Interface(), defaultValue.Interface()) { + return bytesEncoder(nil), nil + } + } + + // If no default value is given then the zero value for the type is + // assumed to be the default value. This isn't obviously the correct + // behavior, but it's what Go has traditionally done. + if params.optional && params.defaultValue == nil { + if reflect.DeepEqual(v.Interface(), reflect.Zero(v.Type()).Interface()) { + return bytesEncoder(nil), nil + } + } + + if v.Type() == rawValueType { + rv := v.Interface().(RawValue) + if len(rv.FullBytes) != 0 { + return bytesEncoder(rv.FullBytes), nil + } + + t := new(taggedEncoder) + + t.tag = bytesEncoder(appendTagAndLength(t.scratch[:0], tagAndLength{rv.Class, rv.Tag, len(rv.Bytes), rv.IsCompound})) + t.body = bytesEncoder(rv.Bytes) + + return t, nil + } + + matchAny, tag, isCompound, ok := getUniversalType(v.Type()) + if !ok || matchAny { + return nil, StructuralError{fmt.Sprintf("unknown Go type: %v", v.Type()), params.name} + } + + if params.timeType != 0 && tag != TagUTCTime { + return nil, StructuralError{"explicit time type given to non-time member", params.name} + } + + if params.stringType != 0 && tag != TagPrintableString { + return nil, StructuralError{"explicit string type given to non-string member", params.name} + } + + switch tag { + case TagPrintableString: + if params.stringType == 0 { + // This is a string without an explicit string type. We'll use + // a PrintableString if the character set in the string is + // sufficiently limited, otherwise we'll use a UTF8String. + for _, r := range v.String() { + if r >= utf8.RuneSelf || !isPrintable(byte(r), rejectAsterisk, rejectAmpersand) { + if !utf8.ValidString(v.String()) { + return nil, errors.New("asn1: string not valid UTF-8") + } + tag = TagUTF8String + break + } + } + } else { + tag = params.stringType + } + case TagUTCTime: + if params.timeType == TagGeneralizedTime || outsideUTCRange(v.Interface().(time.Time)) { + tag = TagGeneralizedTime + } + } + + if params.set { + if tag != TagSequence { + return nil, StructuralError{"non sequence tagged as set", params.name} + } + tag = TagSet + } + + t := new(taggedEncoder) + + t.body, err = makeBody(v, params) + if err != nil { + return nil, err + } + + bodyLen := t.body.Len() + + class := ClassUniversal + if params.tag != nil { + if params.application { + class = ClassApplication + } else { + class = ClassContextSpecific + } + + if params.explicit { + t.tag = bytesEncoder(appendTagAndLength(t.scratch[:0], tagAndLength{ClassUniversal, tag, bodyLen, isCompound})) + + tt := new(taggedEncoder) + + tt.body = t + + tt.tag = bytesEncoder(appendTagAndLength(tt.scratch[:0], tagAndLength{ + class: class, + tag: *params.tag, + length: bodyLen + t.tag.Len(), + isCompound: true, + })) + + return tt, nil + } + + // implicit tag. + tag = *params.tag + } + + t.tag = bytesEncoder(appendTagAndLength(t.scratch[:0], tagAndLength{class, tag, bodyLen, isCompound})) + + return t, nil +} + +// Marshal returns the ASN.1 encoding of val. +// +// In addition to the struct tags recognised by Unmarshal, the following can be +// used: +// +// ia5: causes strings to be marshaled as ASN.1, IA5String values +// omitempty: causes empty slices to be skipped +// printable: causes strings to be marshaled as ASN.1, PrintableString values +// utf8: causes strings to be marshaled as ASN.1, UTF8String values +// utc: causes time.Time to be marshaled as ASN.1, UTCTime values +// generalized: causes time.Time to be marshaled as ASN.1, GeneralizedTime values +func Marshal(val interface{}) ([]byte, error) { + return MarshalWithParams(val, "") +} + +// MarshalWithParams allows field parameters to be specified for the +// top-level element. The form of the params is the same as the field tags. +func MarshalWithParams(val interface{}, params string) ([]byte, error) { + e, err := makeField(reflect.ValueOf(val), parseFieldParameters(params)) + if err != nil { + return nil, err + } + b := make([]byte, e.Len()) + e.Encode(b) + return b, nil +} diff --git a/vendor/github.com/google/certificate-transparency-go/cloudbuild_tag.yaml b/vendor/github.com/google/certificate-transparency-go/cloudbuild_tag.yaml new file mode 100644 index 0000000000000..8c8c5ab6f8f65 --- /dev/null +++ b/vendor/github.com/google/certificate-transparency-go/cloudbuild_tag.yaml @@ -0,0 +1,10 @@ +steps: +- id: build_ctfe + name: gcr.io/cloud-builders/docker + args: + - build + - --file=trillian/examples/deployment/docker/ctfe/Dockerfile + - --tag=gcr.io/${PROJECT_ID}/ctfe:${TAG_NAME} + - . +images: +- gcr.io/${PROJECT_ID}/ctfe:${TAG_NAME} diff --git a/vendor/github.com/google/certificate-transparency-go/gometalinter.json b/vendor/github.com/google/certificate-transparency-go/gometalinter.json new file mode 100644 index 0000000000000..4eba1b63c81d9 --- /dev/null +++ b/vendor/github.com/google/certificate-transparency-go/gometalinter.json @@ -0,0 +1,28 @@ +{ + "Deadline": "60s", + "Linters": { + "license": "./scripts/check_license.sh:PATH:LINE:MESSAGE", + "forked": "./scripts/check_forked.sh:PATH:LINE:MESSAGE", + "unforked": "./scripts/check_unforked.sh:PATH:LINE:MESSAGE" + }, + "Enable": [ + "forked", + "gocyclo", + "gofmt", + "goimports", + "golint", + "license", + "misspell", + "unforked", + "vet" + ], + "Exclude": [ + "x509/", + "asn1/", + ".+\\.pb\\.go", + ".+\\.pb\\.gw\\.go", + "mock_.+\\.go" + ], + "Cyclo": 40, + "Vendor": true +} diff --git a/vendor/github.com/google/certificate-transparency-go/serialization.go b/vendor/github.com/google/certificate-transparency-go/serialization.go new file mode 100644 index 0000000000000..a1b558d14b026 --- /dev/null +++ b/vendor/github.com/google/certificate-transparency-go/serialization.go @@ -0,0 +1,347 @@ +// Copyright 2015 Google Inc. All Rights Reserved. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package ct + +import ( + "crypto" + "crypto/sha256" + "encoding/json" + "fmt" + "strings" + "time" + + "github.com/google/certificate-transparency-go/tls" + "github.com/google/certificate-transparency-go/x509" +) + +// SerializeSCTSignatureInput serializes the passed in sct and log entry into +// the correct format for signing. +func SerializeSCTSignatureInput(sct SignedCertificateTimestamp, entry LogEntry) ([]byte, error) { + switch sct.SCTVersion { + case V1: + input := CertificateTimestamp{ + SCTVersion: sct.SCTVersion, + SignatureType: CertificateTimestampSignatureType, + Timestamp: sct.Timestamp, + EntryType: entry.Leaf.TimestampedEntry.EntryType, + Extensions: sct.Extensions, + } + switch entry.Leaf.TimestampedEntry.EntryType { + case X509LogEntryType: + input.X509Entry = entry.Leaf.TimestampedEntry.X509Entry + case PrecertLogEntryType: + input.PrecertEntry = &PreCert{ + IssuerKeyHash: entry.Leaf.TimestampedEntry.PrecertEntry.IssuerKeyHash, + TBSCertificate: entry.Leaf.TimestampedEntry.PrecertEntry.TBSCertificate, + } + case XJSONLogEntryType: + input.JSONEntry = entry.Leaf.TimestampedEntry.JSONEntry + default: + return nil, fmt.Errorf("unsupported entry type %s", entry.Leaf.TimestampedEntry.EntryType) + } + return tls.Marshal(input) + default: + return nil, fmt.Errorf("unknown SCT version %d", sct.SCTVersion) + } +} + +// SerializeSTHSignatureInput serializes the passed in STH into the correct +// format for signing. +func SerializeSTHSignatureInput(sth SignedTreeHead) ([]byte, error) { + switch sth.Version { + case V1: + if len(sth.SHA256RootHash) != crypto.SHA256.Size() { + return nil, fmt.Errorf("invalid TreeHash length, got %d expected %d", len(sth.SHA256RootHash), crypto.SHA256.Size()) + } + + input := TreeHeadSignature{ + Version: sth.Version, + SignatureType: TreeHashSignatureType, + Timestamp: sth.Timestamp, + TreeSize: sth.TreeSize, + SHA256RootHash: sth.SHA256RootHash, + } + return tls.Marshal(input) + default: + return nil, fmt.Errorf("unsupported STH version %d", sth.Version) + } +} + +// CreateX509MerkleTreeLeaf generates a MerkleTreeLeaf for an X509 cert +func CreateX509MerkleTreeLeaf(cert ASN1Cert, timestamp uint64) *MerkleTreeLeaf { + return &MerkleTreeLeaf{ + Version: V1, + LeafType: TimestampedEntryLeafType, + TimestampedEntry: &TimestampedEntry{ + Timestamp: timestamp, + EntryType: X509LogEntryType, + X509Entry: &cert, + }, + } +} + +// CreateJSONMerkleTreeLeaf creates the merkle tree leaf for json data. +func CreateJSONMerkleTreeLeaf(data interface{}, timestamp uint64) *MerkleTreeLeaf { + jsonData, err := json.Marshal(AddJSONRequest{Data: data}) + if err != nil { + return nil + } + // Match the JSON serialization implemented by json-c + jsonStr := strings.Replace(string(jsonData), ":", ": ", -1) + jsonStr = strings.Replace(jsonStr, ",", ", ", -1) + jsonStr = strings.Replace(jsonStr, "{", "{ ", -1) + jsonStr = strings.Replace(jsonStr, "}", " }", -1) + jsonStr = strings.Replace(jsonStr, "/", `\/`, -1) + // TODO: Pending google/certificate-transparency#1243, replace with + // ObjectHash once supported by CT server. + + return &MerkleTreeLeaf{ + Version: V1, + LeafType: TimestampedEntryLeafType, + TimestampedEntry: &TimestampedEntry{ + Timestamp: timestamp, + EntryType: XJSONLogEntryType, + JSONEntry: &JSONDataEntry{Data: []byte(jsonStr)}, + }, + } +} + +// MerkleTreeLeafFromRawChain generates a MerkleTreeLeaf from a chain (in DER-encoded form) and timestamp. +func MerkleTreeLeafFromRawChain(rawChain []ASN1Cert, etype LogEntryType, timestamp uint64) (*MerkleTreeLeaf, error) { + // Need at most 3 of the chain + count := 3 + if count > len(rawChain) { + count = len(rawChain) + } + chain := make([]*x509.Certificate, count) + for i := range chain { + cert, err := x509.ParseCertificate(rawChain[i].Data) + if x509.IsFatal(err) { + return nil, fmt.Errorf("failed to parse chain[%d] cert: %v", i, err) + } + chain[i] = cert + } + return MerkleTreeLeafFromChain(chain, etype, timestamp) +} + +// MerkleTreeLeafFromChain generates a MerkleTreeLeaf from a chain and timestamp. +func MerkleTreeLeafFromChain(chain []*x509.Certificate, etype LogEntryType, timestamp uint64) (*MerkleTreeLeaf, error) { + leaf := MerkleTreeLeaf{ + Version: V1, + LeafType: TimestampedEntryLeafType, + TimestampedEntry: &TimestampedEntry{ + EntryType: etype, + Timestamp: timestamp, + }, + } + if etype == X509LogEntryType { + leaf.TimestampedEntry.X509Entry = &ASN1Cert{Data: chain[0].Raw} + return &leaf, nil + } + if etype != PrecertLogEntryType { + return nil, fmt.Errorf("unknown LogEntryType %d", etype) + } + + // Pre-certs are more complicated. First, parse the leaf pre-cert and its + // putative issuer. + if len(chain) < 2 { + return nil, fmt.Errorf("no issuer cert available for precert leaf building") + } + issuer := chain[1] + cert := chain[0] + + var preIssuer *x509.Certificate + if IsPreIssuer(issuer) { + // Replace the cert's issuance information with details from the pre-issuer. + preIssuer = issuer + + // The issuer of the pre-cert is not going to be the issuer of the final + // cert. Change to use the final issuer's key hash. + if len(chain) < 3 { + return nil, fmt.Errorf("no issuer cert available for pre-issuer") + } + issuer = chain[2] + } + + // Next, post-process the DER-encoded TBSCertificate, to remove the CT poison + // extension and possibly update the issuer field. + defangedTBS, err := x509.BuildPrecertTBS(cert.RawTBSCertificate, preIssuer) + if err != nil { + return nil, fmt.Errorf("failed to remove poison extension: %v", err) + } + + leaf.TimestampedEntry.EntryType = PrecertLogEntryType + leaf.TimestampedEntry.PrecertEntry = &PreCert{ + IssuerKeyHash: sha256.Sum256(issuer.RawSubjectPublicKeyInfo), + TBSCertificate: defangedTBS, + } + return &leaf, nil +} + +// MerkleTreeLeafForEmbeddedSCT generates a MerkleTreeLeaf from a chain and an +// SCT timestamp, where the leaf certificate at chain[0] is a certificate that +// contains embedded SCTs. It is assumed that the timestamp provided is from +// one of the SCTs embedded within the leaf certificate. +func MerkleTreeLeafForEmbeddedSCT(chain []*x509.Certificate, timestamp uint64) (*MerkleTreeLeaf, error) { + // For building the leaf for a certificate and SCT where the SCT is embedded + // in the certificate, we need to build the original precertificate TBS + // data. First, parse the leaf cert and its issuer. + if len(chain) < 2 { + return nil, fmt.Errorf("no issuer cert available for precert leaf building") + } + issuer := chain[1] + cert := chain[0] + + // Next, post-process the DER-encoded TBSCertificate, to remove the SCTList + // extension. + tbs, err := x509.RemoveSCTList(cert.RawTBSCertificate) + if err != nil { + return nil, fmt.Errorf("failed to remove SCT List extension: %v", err) + } + + return &MerkleTreeLeaf{ + Version: V1, + LeafType: TimestampedEntryLeafType, + TimestampedEntry: &TimestampedEntry{ + EntryType: PrecertLogEntryType, + Timestamp: timestamp, + PrecertEntry: &PreCert{ + IssuerKeyHash: sha256.Sum256(issuer.RawSubjectPublicKeyInfo), + TBSCertificate: tbs, + }, + }, + }, nil +} + +// LeafHashForLeaf returns the leaf hash for a Merkle tree leaf. +func LeafHashForLeaf(leaf *MerkleTreeLeaf) ([sha256.Size]byte, error) { + leafData, err := tls.Marshal(*leaf) + if err != nil { + return [sha256.Size]byte{}, fmt.Errorf("failed to tls-encode MerkleTreeLeaf: %s", err) + } + + data := append([]byte{TreeLeafPrefix}, leafData...) + leafHash := sha256.Sum256(data) + return leafHash, nil +} + +// IsPreIssuer indicates whether a certificate is a pre-cert issuer with the specific +// certificate transparency extended key usage. +func IsPreIssuer(issuer *x509.Certificate) bool { + for _, eku := range issuer.ExtKeyUsage { + if eku == x509.ExtKeyUsageCertificateTransparency { + return true + } + } + return false +} + +// RawLogEntryFromLeaf converts a LeafEntry object (which has the raw leaf data +// after JSON parsing) into a RawLogEntry object (i.e. a TLS-parsed structure). +func RawLogEntryFromLeaf(index int64, entry *LeafEntry) (*RawLogEntry, error) { + ret := RawLogEntry{Index: index} + if rest, err := tls.Unmarshal(entry.LeafInput, &ret.Leaf); err != nil { + return nil, fmt.Errorf("failed to unmarshal MerkleTreeLeaf: %v", err) + } else if len(rest) > 0 { + return nil, fmt.Errorf("MerkleTreeLeaf: trailing data %d bytes", len(rest)) + } + + switch eType := ret.Leaf.TimestampedEntry.EntryType; eType { + case X509LogEntryType: + var certChain CertificateChain + if rest, err := tls.Unmarshal(entry.ExtraData, &certChain); err != nil { + return nil, fmt.Errorf("failed to unmarshal CertificateChain: %v", err) + } else if len(rest) > 0 { + return nil, fmt.Errorf("CertificateChain: trailing data %d bytes", len(rest)) + } + ret.Cert = *ret.Leaf.TimestampedEntry.X509Entry + ret.Chain = certChain.Entries + + case PrecertLogEntryType: + var precertChain PrecertChainEntry + if rest, err := tls.Unmarshal(entry.ExtraData, &precertChain); err != nil { + return nil, fmt.Errorf("failed to unmarshal PrecertChainEntry: %v", err) + } else if len(rest) > 0 { + return nil, fmt.Errorf("PrecertChainEntry: trailing data %d bytes", len(rest)) + } + ret.Cert = precertChain.PreCertificate + ret.Chain = precertChain.CertificateChain + + default: + // TODO(pavelkalinnikov): Section 4.6 of RFC6962 implies that unknown types + // are not errors. We should revisit how we process this case. + return nil, fmt.Errorf("unknown entry type: %v", eType) + } + + return &ret, nil +} + +// ToLogEntry converts RawLogEntry to a LogEntry, which includes an x509-parsed +// (pre-)certificate. +// +// Note that this function may return a valid LogEntry object and a non-nil +// error value, when the error indicates a non-fatal parsing error. +func (rle *RawLogEntry) ToLogEntry() (*LogEntry, error) { + var err error + entry := LogEntry{Index: rle.Index, Leaf: rle.Leaf, Chain: rle.Chain} + + switch eType := rle.Leaf.TimestampedEntry.EntryType; eType { + case X509LogEntryType: + entry.X509Cert, err = rle.Leaf.X509Certificate() + if x509.IsFatal(err) { + return nil, fmt.Errorf("failed to parse certificate: %v", err) + } + + case PrecertLogEntryType: + var tbsCert *x509.Certificate + tbsCert, err = rle.Leaf.Precertificate() + if x509.IsFatal(err) { + return nil, fmt.Errorf("failed to parse precertificate: %v", err) + } + entry.Precert = &Precertificate{ + Submitted: rle.Cert, + IssuerKeyHash: rle.Leaf.TimestampedEntry.PrecertEntry.IssuerKeyHash, + TBSCertificate: tbsCert, + } + + default: + return nil, fmt.Errorf("unknown entry type: %v", eType) + } + + // err may be non-nil for a non-fatal error. + return &entry, err +} + +// LogEntryFromLeaf converts a LeafEntry object (which has the raw leaf data +// after JSON parsing) into a LogEntry object (which includes x509.Certificate +// objects, after TLS and ASN.1 parsing). +// +// Note that this function may return a valid LogEntry object and a non-nil +// error value, when the error indicates a non-fatal parsing error. +func LogEntryFromLeaf(index int64, leaf *LeafEntry) (*LogEntry, error) { + rle, err := RawLogEntryFromLeaf(index, leaf) + if err != nil { + return nil, err + } + return rle.ToLogEntry() +} + +// TimestampToTime converts a timestamp in the style of RFC 6962 (milliseconds +// since UNIX epoch) to a Go Time. +func TimestampToTime(ts uint64) time.Time { + secs := int64(ts / 1000) + msecs := int64(ts % 1000) + return time.Unix(secs, msecs*1000000) +} diff --git a/vendor/github.com/google/certificate-transparency-go/signatures.go b/vendor/github.com/google/certificate-transparency-go/signatures.go new file mode 100644 index 0000000000000..b1000ba464032 --- /dev/null +++ b/vendor/github.com/google/certificate-transparency-go/signatures.go @@ -0,0 +1,112 @@ +// Copyright 2015 Google Inc. All Rights Reserved. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package ct + +import ( + "crypto" + "crypto/ecdsa" + "crypto/elliptic" + "crypto/rsa" + "crypto/sha256" + "encoding/base64" + "encoding/pem" + "fmt" + "log" + + "github.com/google/certificate-transparency-go/tls" + "github.com/google/certificate-transparency-go/x509" +) + +// AllowVerificationWithNonCompliantKeys may be set to true in order to allow +// SignatureVerifier to use keys which are technically non-compliant with +// RFC6962. +var AllowVerificationWithNonCompliantKeys = false + +// PublicKeyFromPEM parses a PEM formatted block and returns the public key contained within and any remaining unread bytes, or an error. +func PublicKeyFromPEM(b []byte) (crypto.PublicKey, SHA256Hash, []byte, error) { + p, rest := pem.Decode(b) + if p == nil { + return nil, [sha256.Size]byte{}, rest, fmt.Errorf("no PEM block found in %s", string(b)) + } + k, err := x509.ParsePKIXPublicKey(p.Bytes) + return k, sha256.Sum256(p.Bytes), rest, err +} + +// PublicKeyFromB64 parses a base64-encoded public key. +func PublicKeyFromB64(b64PubKey string) (crypto.PublicKey, error) { + der, err := base64.StdEncoding.DecodeString(b64PubKey) + if err != nil { + return nil, fmt.Errorf("error decoding public key: %s", err) + } + return x509.ParsePKIXPublicKey(der) +} + +// SignatureVerifier can verify signatures on SCTs and STHs +type SignatureVerifier struct { + pubKey crypto.PublicKey +} + +// NewSignatureVerifier creates a new SignatureVerifier using the passed in PublicKey. +func NewSignatureVerifier(pk crypto.PublicKey) (*SignatureVerifier, error) { + switch pkType := pk.(type) { + case *rsa.PublicKey: + if pkType.N.BitLen() < 2048 { + e := fmt.Errorf("public key is RSA with < 2048 bits (size:%d)", pkType.N.BitLen()) + if !AllowVerificationWithNonCompliantKeys { + return nil, e + } + log.Printf("WARNING: %v", e) + } + case *ecdsa.PublicKey: + params := *(pkType.Params()) + if params != *elliptic.P256().Params() { + e := fmt.Errorf("public is ECDSA, but not on the P256 curve") + if !AllowVerificationWithNonCompliantKeys { + return nil, e + } + log.Printf("WARNING: %v", e) + + } + default: + return nil, fmt.Errorf("Unsupported public key type %v", pkType) + } + + return &SignatureVerifier{ + pubKey: pk, + }, nil +} + +// VerifySignature verifies the given signature sig matches the data. +func (s SignatureVerifier) VerifySignature(data []byte, sig tls.DigitallySigned) error { + return tls.VerifySignature(s.pubKey, data, sig) +} + +// VerifySCTSignature verifies that the SCT's signature is valid for the given LogEntry. +func (s SignatureVerifier) VerifySCTSignature(sct SignedCertificateTimestamp, entry LogEntry) error { + sctData, err := SerializeSCTSignatureInput(sct, entry) + if err != nil { + return err + } + return s.VerifySignature(sctData, tls.DigitallySigned(sct.Signature)) +} + +// VerifySTHSignature verifies that the STH's signature is valid. +func (s SignatureVerifier) VerifySTHSignature(sth SignedTreeHead) error { + sthData, err := SerializeSTHSignatureInput(sth) + if err != nil { + return err + } + return s.VerifySignature(sthData, tls.DigitallySigned(sth.TreeHeadSignature)) +} diff --git a/vendor/github.com/google/certificate-transparency-go/tls/signature.go b/vendor/github.com/google/certificate-transparency-go/tls/signature.go new file mode 100644 index 0000000000000..bfdb016d2fdb6 --- /dev/null +++ b/vendor/github.com/google/certificate-transparency-go/tls/signature.go @@ -0,0 +1,152 @@ +// Copyright 2016 Google Inc. All Rights Reserved. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package tls + +import ( + "crypto" + "crypto/dsa" + "crypto/ecdsa" + _ "crypto/md5" // For registration side-effect + "crypto/rand" + "crypto/rsa" + _ "crypto/sha1" // For registration side-effect + _ "crypto/sha256" // For registration side-effect + _ "crypto/sha512" // For registration side-effect + "errors" + "fmt" + "log" + "math/big" + + "github.com/google/certificate-transparency-go/asn1" +) + +type dsaSig struct { + R, S *big.Int +} + +func generateHash(algo HashAlgorithm, data []byte) ([]byte, crypto.Hash, error) { + var hashType crypto.Hash + switch algo { + case MD5: + hashType = crypto.MD5 + case SHA1: + hashType = crypto.SHA1 + case SHA224: + hashType = crypto.SHA224 + case SHA256: + hashType = crypto.SHA256 + case SHA384: + hashType = crypto.SHA384 + case SHA512: + hashType = crypto.SHA512 + default: + return nil, hashType, fmt.Errorf("unsupported Algorithm.Hash in signature: %v", algo) + } + + hasher := hashType.New() + if _, err := hasher.Write(data); err != nil { + return nil, hashType, fmt.Errorf("failed to write to hasher: %v", err) + } + return hasher.Sum([]byte{}), hashType, nil +} + +// VerifySignature verifies that the passed in signature over data was created by the given PublicKey. +func VerifySignature(pubKey crypto.PublicKey, data []byte, sig DigitallySigned) error { + hash, hashType, err := generateHash(sig.Algorithm.Hash, data) + if err != nil { + return err + } + + switch sig.Algorithm.Signature { + case RSA: + rsaKey, ok := pubKey.(*rsa.PublicKey) + if !ok { + return fmt.Errorf("cannot verify RSA signature with %T key", pubKey) + } + if err := rsa.VerifyPKCS1v15(rsaKey, hashType, hash, sig.Signature); err != nil { + return fmt.Errorf("failed to verify rsa signature: %v", err) + } + case DSA: + dsaKey, ok := pubKey.(*dsa.PublicKey) + if !ok { + return fmt.Errorf("cannot verify DSA signature with %T key", pubKey) + } + var dsaSig dsaSig + rest, err := asn1.Unmarshal(sig.Signature, &dsaSig) + if err != nil { + return fmt.Errorf("failed to unmarshal DSA signature: %v", err) + } + if len(rest) != 0 { + log.Printf("Garbage following signature %v", rest) + } + if dsaSig.R.Sign() <= 0 || dsaSig.S.Sign() <= 0 { + return errors.New("DSA signature contained zero or negative values") + } + if !dsa.Verify(dsaKey, hash, dsaSig.R, dsaSig.S) { + return errors.New("failed to verify DSA signature") + } + case ECDSA: + ecdsaKey, ok := pubKey.(*ecdsa.PublicKey) + if !ok { + return fmt.Errorf("cannot verify ECDSA signature with %T key", pubKey) + } + var ecdsaSig dsaSig + rest, err := asn1.Unmarshal(sig.Signature, &ecdsaSig) + if err != nil { + return fmt.Errorf("failed to unmarshal ECDSA signature: %v", err) + } + if len(rest) != 0 { + log.Printf("Garbage following signature %v", rest) + } + if ecdsaSig.R.Sign() <= 0 || ecdsaSig.S.Sign() <= 0 { + return errors.New("ECDSA signature contained zero or negative values") + } + + if !ecdsa.Verify(ecdsaKey, hash, ecdsaSig.R, ecdsaSig.S) { + return errors.New("failed to verify ECDSA signature") + } + default: + return fmt.Errorf("unsupported Algorithm.Signature in signature: %v", sig.Algorithm.Hash) + } + return nil +} + +// CreateSignature builds a signature over the given data using the specified hash algorithm and private key. +func CreateSignature(privKey crypto.PrivateKey, hashAlgo HashAlgorithm, data []byte) (DigitallySigned, error) { + var sig DigitallySigned + sig.Algorithm.Hash = hashAlgo + hash, hashType, err := generateHash(sig.Algorithm.Hash, data) + if err != nil { + return sig, err + } + + switch privKey := privKey.(type) { + case rsa.PrivateKey: + sig.Algorithm.Signature = RSA + sig.Signature, err = rsa.SignPKCS1v15(rand.Reader, &privKey, hashType, hash) + return sig, err + case ecdsa.PrivateKey: + sig.Algorithm.Signature = ECDSA + var ecdsaSig dsaSig + ecdsaSig.R, ecdsaSig.S, err = ecdsa.Sign(rand.Reader, &privKey, hash) + if err != nil { + return sig, err + } + sig.Signature, err = asn1.Marshal(ecdsaSig) + return sig, err + default: + return sig, fmt.Errorf("unsupported private key type %T", privKey) + } +} diff --git a/vendor/github.com/google/certificate-transparency-go/tls/tls.go b/vendor/github.com/google/certificate-transparency-go/tls/tls.go new file mode 100644 index 0000000000000..1bcd3a379669f --- /dev/null +++ b/vendor/github.com/google/certificate-transparency-go/tls/tls.go @@ -0,0 +1,711 @@ +// Copyright 2016 Google Inc. All Rights Reserved. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +// Package tls implements functionality for dealing with TLS-encoded data, +// as defined in RFC 5246. This includes parsing and generation of TLS-encoded +// data, together with utility functions for dealing with the DigitallySigned +// TLS type. +package tls + +import ( + "bytes" + "encoding/binary" + "fmt" + "reflect" + "strconv" + "strings" +) + +// This file holds utility functions for TLS encoding/decoding data +// as per RFC 5246 section 4. + +// A structuralError suggests that the TLS data is valid, but the Go type +// which is receiving it doesn't match. +type structuralError struct { + field string + msg string +} + +func (e structuralError) Error() string { + var prefix string + if e.field != "" { + prefix = e.field + ": " + } + return "tls: structure error: " + prefix + e.msg +} + +// A syntaxError suggests that the TLS data is invalid. +type syntaxError struct { + field string + msg string +} + +func (e syntaxError) Error() string { + var prefix string + if e.field != "" { + prefix = e.field + ": " + } + return "tls: syntax error: " + prefix + e.msg +} + +// Uint24 is an unsigned 3-byte integer. +type Uint24 uint32 + +// Enum is an unsigned integer. +type Enum uint64 + +var ( + uint8Type = reflect.TypeOf(uint8(0)) + uint16Type = reflect.TypeOf(uint16(0)) + uint24Type = reflect.TypeOf(Uint24(0)) + uint32Type = reflect.TypeOf(uint32(0)) + uint64Type = reflect.TypeOf(uint64(0)) + enumType = reflect.TypeOf(Enum(0)) +) + +// Unmarshal parses the TLS-encoded data in b and uses the reflect package to +// fill in an arbitrary value pointed at by val. Because Unmarshal uses the +// reflect package, the structs being written to must use exported fields +// (upper case names). +// +// The mappings between TLS types and Go types is as follows; some fields +// must have tags (to indicate their encoded size). +// +// TLS Go Required Tags +// opaque byte / uint8 +// uint8 byte / uint8 +// uint16 uint16 +// uint24 tls.Uint24 +// uint32 uint32 +// uint64 uint64 +// enum tls.Enum size:S or maxval:N +// Type []Type minlen:N,maxlen:M +// opaque[N] [N]byte / [N]uint8 +// uint8[N] [N]byte / [N]uint8 +// struct { } struct { } +// select(T) { +// case e1: Type *T selector:Field,val:e1 +// } +// +// TLS variants (RFC 5246 s4.6.1) are only supported when the value of the +// associated enumeration type is available earlier in the same enclosing +// struct, and each possible variant is marked with a selector tag (to +// indicate which field selects the variants) and a val tag (to indicate +// what value of the selector picks this particular field). +// +// For example, a TLS structure: +// +// enum { e1(1), e2(2) } EnumType; +// struct { +// EnumType sel; +// select(sel) { +// case e1: uint16 +// case e2: uint32 +// } data; +// } VariantItem; +// +// would have a corresponding Go type: +// +// type VariantItem struct { +// Sel tls.Enum `tls:"maxval:2"` +// Data16 *uint16 `tls:"selector:Sel,val:1"` +// Data32 *uint32 `tls:"selector:Sel,val:2"` +// } +// +// TLS fixed-length vectors of types other than opaque or uint8 are not supported. +// +// For TLS variable-length vectors that are themselves used in other vectors, +// create a single-field structure to represent the inner type. For example, for: +// +// opaque InnerType<1..65535>; +// struct { +// InnerType inners<1,65535>; +// } Something; +// +// convert to: +// +// type InnerType struct { +// Val []byte `tls:"minlen:1,maxlen:65535"` +// } +// type Something struct { +// Inners []InnerType `tls:"minlen:1,maxlen:65535"` +// } +// +// If the encoded value does not fit in the Go type, Unmarshal returns a parse error. +func Unmarshal(b []byte, val interface{}) ([]byte, error) { + return UnmarshalWithParams(b, val, "") +} + +// UnmarshalWithParams allows field parameters to be specified for the +// top-level element. The form of the params is the same as the field tags. +func UnmarshalWithParams(b []byte, val interface{}, params string) ([]byte, error) { + info, err := fieldTagToFieldInfo(params, "") + if err != nil { + return nil, err + } + // The passed in interface{} is a pointer (to allow the value to be written + // to); extract the pointed-to object as a reflect.Value, so parseField + // can do various introspection things. + v := reflect.ValueOf(val).Elem() + offset, err := parseField(v, b, 0, info) + if err != nil { + return nil, err + } + return b[offset:], nil +} + +// Return the number of bytes needed to encode values up to (and including) x. +func byteCount(x uint64) uint { + switch { + case x < 0x100: + return 1 + case x < 0x10000: + return 2 + case x < 0x1000000: + return 3 + case x < 0x100000000: + return 4 + case x < 0x10000000000: + return 5 + case x < 0x1000000000000: + return 6 + case x < 0x100000000000000: + return 7 + default: + return 8 + } +} + +type fieldInfo struct { + count uint // Number of bytes + countSet bool + minlen uint64 // Only relevant for slices + maxlen uint64 // Only relevant for slices + selector string // Only relevant for select sub-values + val uint64 // Only relevant for select sub-values + name string // Used for better error messages +} + +func (i *fieldInfo) fieldName() string { + if i == nil { + return "" + } + return i.name +} + +// Given a tag string, return a fieldInfo describing the field. +func fieldTagToFieldInfo(str string, name string) (*fieldInfo, error) { + var info *fieldInfo + // Iterate over clauses in the tag, ignoring any that don't parse properly. + for _, part := range strings.Split(str, ",") { + switch { + case strings.HasPrefix(part, "maxval:"): + if v, err := strconv.ParseUint(part[7:], 10, 64); err == nil { + info = &fieldInfo{count: byteCount(v), countSet: true} + } + case strings.HasPrefix(part, "size:"): + if sz, err := strconv.ParseUint(part[5:], 10, 32); err == nil { + info = &fieldInfo{count: uint(sz), countSet: true} + } + case strings.HasPrefix(part, "maxlen:"): + v, err := strconv.ParseUint(part[7:], 10, 64) + if err != nil { + continue + } + if info == nil { + info = &fieldInfo{} + } + info.count = byteCount(v) + info.countSet = true + info.maxlen = v + case strings.HasPrefix(part, "minlen:"): + v, err := strconv.ParseUint(part[7:], 10, 64) + if err != nil { + continue + } + if info == nil { + info = &fieldInfo{} + } + info.minlen = v + case strings.HasPrefix(part, "selector:"): + if info == nil { + info = &fieldInfo{} + } + info.selector = part[9:] + case strings.HasPrefix(part, "val:"): + v, err := strconv.ParseUint(part[4:], 10, 64) + if err != nil { + continue + } + if info == nil { + info = &fieldInfo{} + } + info.val = v + } + } + if info != nil { + info.name = name + if info.selector == "" { + if info.count < 1 { + return nil, structuralError{name, "field of unknown size in " + str} + } else if info.count > 8 { + return nil, structuralError{name, "specified size too large in " + str} + } else if info.minlen > info.maxlen { + return nil, structuralError{name, "specified length range inverted in " + str} + } else if info.val > 0 { + return nil, structuralError{name, "specified selector value but not field in " + str} + } + } + } else if name != "" { + info = &fieldInfo{name: name} + } + return info, nil +} + +// Check that a value fits into a field described by a fieldInfo structure. +func (i fieldInfo) check(val uint64, fldName string) error { + if val >= (1 << (8 * i.count)) { + return structuralError{fldName, fmt.Sprintf("value %d too large for size", val)} + } + if i.maxlen != 0 { + if val < i.minlen { + return structuralError{fldName, fmt.Sprintf("value %d too small for minimum %d", val, i.minlen)} + } + if val > i.maxlen { + return structuralError{fldName, fmt.Sprintf("value %d too large for maximum %d", val, i.maxlen)} + } + } + return nil +} + +// readVarUint reads an big-endian unsigned integer of the given size in +// bytes. +func readVarUint(data []byte, info *fieldInfo) (uint64, error) { + if info == nil || !info.countSet { + return 0, structuralError{info.fieldName(), "no field size information available"} + } + if len(data) < int(info.count) { + return 0, syntaxError{info.fieldName(), "truncated variable-length integer"} + } + var result uint64 + for i := uint(0); i < info.count; i++ { + result = (result << 8) | uint64(data[i]) + } + if err := info.check(result, info.name); err != nil { + return 0, err + } + return result, nil +} + +// parseField is the main parsing function. Given a byte slice and an offset +// (in bytes) into the data, it will try to parse a suitable ASN.1 value out +// and store it in the given Value. +func parseField(v reflect.Value, data []byte, initOffset int, info *fieldInfo) (int, error) { + offset := initOffset + rest := data[offset:] + + fieldType := v.Type() + // First look for known fixed types. + switch fieldType { + case uint8Type: + if len(rest) < 1 { + return offset, syntaxError{info.fieldName(), "truncated uint8"} + } + v.SetUint(uint64(rest[0])) + offset++ + return offset, nil + case uint16Type: + if len(rest) < 2 { + return offset, syntaxError{info.fieldName(), "truncated uint16"} + } + v.SetUint(uint64(binary.BigEndian.Uint16(rest))) + offset += 2 + return offset, nil + case uint24Type: + if len(rest) < 3 { + return offset, syntaxError{info.fieldName(), "truncated uint24"} + } + v.SetUint(uint64(data[0])<<16 | uint64(data[1])<<8 | uint64(data[2])) + offset += 3 + return offset, nil + case uint32Type: + if len(rest) < 4 { + return offset, syntaxError{info.fieldName(), "truncated uint32"} + } + v.SetUint(uint64(binary.BigEndian.Uint32(rest))) + offset += 4 + return offset, nil + case uint64Type: + if len(rest) < 8 { + return offset, syntaxError{info.fieldName(), "truncated uint64"} + } + v.SetUint(uint64(binary.BigEndian.Uint64(rest))) + offset += 8 + return offset, nil + } + + // Now deal with user-defined types. + switch v.Kind() { + case enumType.Kind(): + // Assume that anything of the same kind as Enum is an Enum, so that + // users can alias types of their own to Enum. + val, err := readVarUint(rest, info) + if err != nil { + return offset, err + } + v.SetUint(val) + offset += int(info.count) + return offset, nil + case reflect.Struct: + structType := fieldType + // TLS includes a select(Enum) {..} construct, where the value of an enum + // indicates which variant field is present (like a C union). We require + // that the enum value be an earlier field in the same structure (the selector), + // and that each of the possible variant destination fields be pointers. + // So the Go mapping looks like: + // type variantType struct { + // Which tls.Enum `tls:"size:1"` // this is the selector + // Val1 *type1 `tls:"selector:Which,val:1"` // this is a destination + // Val2 *type2 `tls:"selector:Which,val:1"` // this is a destination + // } + + // To deal with this, we track any enum-like fields and their values... + enums := make(map[string]uint64) + // .. and we track which selector names we've seen (in the destination field tags), + // and whether a destination for that selector has been chosen. + selectorSeen := make(map[string]bool) + for i := 0; i < structType.NumField(); i++ { + // Find information about this field. + tag := structType.Field(i).Tag.Get("tls") + fieldInfo, err := fieldTagToFieldInfo(tag, structType.Field(i).Name) + if err != nil { + return offset, err + } + + destination := v.Field(i) + if fieldInfo.selector != "" { + // This is a possible select(Enum) destination, so first check that the referenced + // selector field has already been seen earlier in the struct. + choice, ok := enums[fieldInfo.selector] + if !ok { + return offset, structuralError{fieldInfo.name, "selector not seen: " + fieldInfo.selector} + } + if structType.Field(i).Type.Kind() != reflect.Ptr { + return offset, structuralError{fieldInfo.name, "choice field not a pointer type"} + } + // Is this the first mention of the selector field name? If so, remember it. + seen, ok := selectorSeen[fieldInfo.selector] + if !ok { + selectorSeen[fieldInfo.selector] = false + } + if choice != fieldInfo.val { + // This destination field was not the chosen one, so make it nil (we checked + // it was a pointer above). + v.Field(i).Set(reflect.Zero(structType.Field(i).Type)) + continue + } + if seen { + // We already saw a different destination field receive the value for this + // selector value, which indicates a badly annotated structure. + return offset, structuralError{fieldInfo.name, "duplicate selector value for " + fieldInfo.selector} + } + selectorSeen[fieldInfo.selector] = true + // Make an object of the pointed-to type and parse into that. + v.Field(i).Set(reflect.New(structType.Field(i).Type.Elem())) + destination = v.Field(i).Elem() + } + offset, err = parseField(destination, data, offset, fieldInfo) + if err != nil { + return offset, err + } + + // Remember any possible tls.Enum values encountered in case they are selectors. + if structType.Field(i).Type.Kind() == enumType.Kind() { + enums[structType.Field(i).Name] = v.Field(i).Uint() + } + + } + + // Now we have seen all fields in the structure, check that all select(Enum) {..} selector + // fields found a destination to put their data in. + for selector, seen := range selectorSeen { + if !seen { + return offset, syntaxError{info.fieldName(), selector + ": unhandled value for selector"} + } + } + return offset, nil + case reflect.Array: + datalen := v.Len() + + if datalen > len(rest) { + return offset, syntaxError{info.fieldName(), "truncated array"} + } + inner := rest[:datalen] + offset += datalen + if fieldType.Elem().Kind() != reflect.Uint8 { + // Only byte/uint8 arrays are supported + return offset, structuralError{info.fieldName(), "unsupported array type: " + v.Type().String()} + } + reflect.Copy(v, reflect.ValueOf(inner)) + return offset, nil + + case reflect.Slice: + sliceType := fieldType + // Slices represent variable-length vectors, which are prefixed by a length field. + // The fieldInfo indicates the size of that length field. + varlen, err := readVarUint(rest, info) + if err != nil { + return offset, err + } + datalen := int(varlen) + offset += int(info.count) + rest = rest[info.count:] + + if datalen > len(rest) { + return offset, syntaxError{info.fieldName(), "truncated slice"} + } + inner := rest[:datalen] + offset += datalen + if fieldType.Elem().Kind() == reflect.Uint8 { + // Fast version for []byte + v.Set(reflect.MakeSlice(sliceType, datalen, datalen)) + reflect.Copy(v, reflect.ValueOf(inner)) + return offset, nil + } + + v.Set(reflect.MakeSlice(sliceType, 0, datalen)) + single := reflect.New(sliceType.Elem()) + for innerOffset := 0; innerOffset < len(inner); { + var err error + innerOffset, err = parseField(single.Elem(), inner, innerOffset, nil) + if err != nil { + return offset, err + } + v.Set(reflect.Append(v, single.Elem())) + } + return offset, nil + + default: + return offset, structuralError{info.fieldName(), fmt.Sprintf("unsupported type: %s of kind %s", fieldType, v.Kind())} + } +} + +// Marshal returns the TLS encoding of val. +func Marshal(val interface{}) ([]byte, error) { + return MarshalWithParams(val, "") +} + +// MarshalWithParams returns the TLS encoding of val, and allows field +// parameters to be specified for the top-level element. The form +// of the params is the same as the field tags. +func MarshalWithParams(val interface{}, params string) ([]byte, error) { + info, err := fieldTagToFieldInfo(params, "") + if err != nil { + return nil, err + } + var out bytes.Buffer + v := reflect.ValueOf(val) + if err := marshalField(&out, v, info); err != nil { + return nil, err + } + return out.Bytes(), err +} + +func marshalField(out *bytes.Buffer, v reflect.Value, info *fieldInfo) error { + var prefix string + if info != nil && len(info.name) > 0 { + prefix = info.name + ": " + } + fieldType := v.Type() + // First look for known fixed types. + switch fieldType { + case uint8Type: + out.WriteByte(byte(v.Uint())) + return nil + case uint16Type: + scratch := make([]byte, 2) + binary.BigEndian.PutUint16(scratch, uint16(v.Uint())) + out.Write(scratch) + return nil + case uint24Type: + i := v.Uint() + if i > 0xffffff { + return structuralError{info.fieldName(), fmt.Sprintf("uint24 overflow %d", i)} + } + scratch := make([]byte, 4) + binary.BigEndian.PutUint32(scratch, uint32(i)) + out.Write(scratch[1:]) + return nil + case uint32Type: + scratch := make([]byte, 4) + binary.BigEndian.PutUint32(scratch, uint32(v.Uint())) + out.Write(scratch) + return nil + case uint64Type: + scratch := make([]byte, 8) + binary.BigEndian.PutUint64(scratch, uint64(v.Uint())) + out.Write(scratch) + return nil + } + + // Now deal with user-defined types. + switch v.Kind() { + case enumType.Kind(): + i := v.Uint() + if info == nil { + return structuralError{info.fieldName(), "enum field tag missing"} + } + if err := info.check(i, prefix); err != nil { + return err + } + scratch := make([]byte, 8) + binary.BigEndian.PutUint64(scratch, uint64(i)) + out.Write(scratch[(8 - info.count):]) + return nil + case reflect.Struct: + structType := fieldType + enums := make(map[string]uint64) // Values of any Enum fields + // The comment parseField() describes the mapping of the TLS select(Enum) {..} construct; + // here we have selector and source (rather than destination) fields. + + // Track which selector names we've seen (in the source field tags), and whether a source + // value for that selector has been processed. + selectorSeen := make(map[string]bool) + for i := 0; i < structType.NumField(); i++ { + // Find information about this field. + tag := structType.Field(i).Tag.Get("tls") + fieldInfo, err := fieldTagToFieldInfo(tag, structType.Field(i).Name) + if err != nil { + return err + } + + source := v.Field(i) + if fieldInfo.selector != "" { + // This field is a possible source for a select(Enum) {..}. First check + // the selector field name has been seen. + choice, ok := enums[fieldInfo.selector] + if !ok { + return structuralError{fieldInfo.name, "selector not seen: " + fieldInfo.selector} + } + if structType.Field(i).Type.Kind() != reflect.Ptr { + return structuralError{fieldInfo.name, "choice field not a pointer type"} + } + // Is this the first mention of the selector field name? If so, remember it. + seen, ok := selectorSeen[fieldInfo.selector] + if !ok { + selectorSeen[fieldInfo.selector] = false + } + if choice != fieldInfo.val { + // This source was not chosen; police that it should be nil. + if v.Field(i).Pointer() != uintptr(0) { + return structuralError{fieldInfo.name, "unchosen field is non-nil"} + } + continue + } + if seen { + // We already saw a different source field generate the value for this + // selector value, which indicates a badly annotated structure. + return structuralError{fieldInfo.name, "duplicate selector value for " + fieldInfo.selector} + } + selectorSeen[fieldInfo.selector] = true + if v.Field(i).Pointer() == uintptr(0) { + return structuralError{fieldInfo.name, "chosen field is nil"} + } + // Marshal from the pointed-to source object. + source = v.Field(i).Elem() + } + + var fieldData bytes.Buffer + if err := marshalField(&fieldData, source, fieldInfo); err != nil { + return err + } + out.Write(fieldData.Bytes()) + + // Remember any tls.Enum values encountered in case they are selectors. + if structType.Field(i).Type.Kind() == enumType.Kind() { + enums[structType.Field(i).Name] = v.Field(i).Uint() + } + } + // Now we have seen all fields in the structure, check that all select(Enum) {..} selector + // fields found a source field get get their data from. + for selector, seen := range selectorSeen { + if !seen { + return syntaxError{info.fieldName(), selector + ": unhandled value for selector"} + } + } + return nil + + case reflect.Array: + datalen := v.Len() + arrayType := fieldType + if arrayType.Elem().Kind() != reflect.Uint8 { + // Only byte/uint8 arrays are supported + return structuralError{info.fieldName(), "unsupported array type"} + } + bytes := make([]byte, datalen) + for i := 0; i < datalen; i++ { + bytes[i] = uint8(v.Index(i).Uint()) + } + _, err := out.Write(bytes) + return err + + case reflect.Slice: + if info == nil { + return structuralError{info.fieldName(), "slice field tag missing"} + } + + sliceType := fieldType + if sliceType.Elem().Kind() == reflect.Uint8 { + // Fast version for []byte: first write the length as info.count bytes. + datalen := v.Len() + scratch := make([]byte, 8) + binary.BigEndian.PutUint64(scratch, uint64(datalen)) + out.Write(scratch[(8 - info.count):]) + + if err := info.check(uint64(datalen), prefix); err != nil { + return err + } + // Then just write the data. + bytes := make([]byte, datalen) + for i := 0; i < datalen; i++ { + bytes[i] = uint8(v.Index(i).Uint()) + } + _, err := out.Write(bytes) + return err + } + // General version: use a separate Buffer to write the slice entries into. + var innerBuf bytes.Buffer + for i := 0; i < v.Len(); i++ { + if err := marshalField(&innerBuf, v.Index(i), nil); err != nil { + return err + } + } + + // Now insert (and check) the size. + size := uint64(innerBuf.Len()) + if err := info.check(size, prefix); err != nil { + return err + } + scratch := make([]byte, 8) + binary.BigEndian.PutUint64(scratch, size) + out.Write(scratch[(8 - info.count):]) + + // Then copy the data. + _, err := out.Write(innerBuf.Bytes()) + return err + + default: + return structuralError{info.fieldName(), fmt.Sprintf("unsupported type: %s of kind %s", fieldType, v.Kind())} + } +} diff --git a/vendor/github.com/google/certificate-transparency-go/tls/types.go b/vendor/github.com/google/certificate-transparency-go/tls/types.go new file mode 100644 index 0000000000000..14471ad264c15 --- /dev/null +++ b/vendor/github.com/google/certificate-transparency-go/tls/types.go @@ -0,0 +1,117 @@ +// Copyright 2016 Google Inc. All Rights Reserved. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package tls + +import ( + "crypto" + "crypto/dsa" + "crypto/ecdsa" + "crypto/rsa" + "fmt" +) + +// DigitallySigned gives information about a signature, including the algorithm used +// and the signature value. Defined in RFC 5246 s4.7. +type DigitallySigned struct { + Algorithm SignatureAndHashAlgorithm + Signature []byte `tls:"minlen:0,maxlen:65535"` +} + +func (d DigitallySigned) String() string { + return fmt.Sprintf("Signature: HashAlgo=%v SignAlgo=%v Value=%x", d.Algorithm.Hash, d.Algorithm.Signature, d.Signature) +} + +// SignatureAndHashAlgorithm gives information about the algorithms used for a +// signature. Defined in RFC 5246 s7.4.1.4.1. +type SignatureAndHashAlgorithm struct { + Hash HashAlgorithm `tls:"maxval:255"` + Signature SignatureAlgorithm `tls:"maxval:255"` +} + +// HashAlgorithm enum from RFC 5246 s7.4.1.4.1. +type HashAlgorithm Enum + +// HashAlgorithm constants from RFC 5246 s7.4.1.4.1. +const ( + None HashAlgorithm = 0 + MD5 HashAlgorithm = 1 + SHA1 HashAlgorithm = 2 + SHA224 HashAlgorithm = 3 + SHA256 HashAlgorithm = 4 + SHA384 HashAlgorithm = 5 + SHA512 HashAlgorithm = 6 +) + +func (h HashAlgorithm) String() string { + switch h { + case None: + return "None" + case MD5: + return "MD5" + case SHA1: + return "SHA1" + case SHA224: + return "SHA224" + case SHA256: + return "SHA256" + case SHA384: + return "SHA384" + case SHA512: + return "SHA512" + default: + return fmt.Sprintf("UNKNOWN(%d)", h) + } +} + +// SignatureAlgorithm enum from RFC 5246 s7.4.1.4.1. +type SignatureAlgorithm Enum + +// SignatureAlgorithm constants from RFC 5246 s7.4.1.4.1. +const ( + Anonymous SignatureAlgorithm = 0 + RSA SignatureAlgorithm = 1 + DSA SignatureAlgorithm = 2 + ECDSA SignatureAlgorithm = 3 +) + +func (s SignatureAlgorithm) String() string { + switch s { + case Anonymous: + return "Anonymous" + case RSA: + return "RSA" + case DSA: + return "DSA" + case ECDSA: + return "ECDSA" + default: + return fmt.Sprintf("UNKNOWN(%d)", s) + } +} + +// SignatureAlgorithmFromPubKey returns the algorithm used for this public key. +// ECDSA, RSA, and DSA keys are supported. Other key types will return Anonymous. +func SignatureAlgorithmFromPubKey(k crypto.PublicKey) SignatureAlgorithm { + switch k.(type) { + case *ecdsa.PublicKey: + return ECDSA + case *rsa.PublicKey: + return RSA + case *dsa.PublicKey: + return DSA + default: + return Anonymous + } +} diff --git a/vendor/github.com/google/certificate-transparency-go/types.go b/vendor/github.com/google/certificate-transparency-go/types.go new file mode 100644 index 0000000000000..156b5c64def65 --- /dev/null +++ b/vendor/github.com/google/certificate-transparency-go/types.go @@ -0,0 +1,528 @@ +// Copyright 2015 Google Inc. All Rights Reserved. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +// Package ct holds core types and utilities for Certificate Transparency. +package ct + +import ( + "crypto/sha256" + "encoding/base64" + "encoding/json" + "fmt" + + "github.com/google/certificate-transparency-go/tls" + "github.com/google/certificate-transparency-go/x509" +) + +/////////////////////////////////////////////////////////////////////////////// +// The following structures represent those outlined in RFC6962; any section +// numbers mentioned refer to that RFC. +/////////////////////////////////////////////////////////////////////////////// + +// LogEntryType represents the LogEntryType enum from section 3.1: +// enum { x509_entry(0), precert_entry(1), (65535) } LogEntryType; +type LogEntryType tls.Enum // tls:"maxval:65535" + +// LogEntryType constants from section 3.1. +const ( + X509LogEntryType LogEntryType = 0 + PrecertLogEntryType LogEntryType = 1 + XJSONLogEntryType LogEntryType = 0x8000 // Experimental. Don't rely on this! +) + +func (e LogEntryType) String() string { + switch e { + case X509LogEntryType: + return "X509LogEntryType" + case PrecertLogEntryType: + return "PrecertLogEntryType" + case XJSONLogEntryType: + return "XJSONLogEntryType" + default: + return fmt.Sprintf("UnknownEntryType(%d)", e) + } +} + +// RFC6962 section 2.1 requires a prefix byte on hash inputs for second preimage resistance. +const ( + TreeLeafPrefix = byte(0x00) + TreeNodePrefix = byte(0x01) +) + +// MerkleLeafType represents the MerkleLeafType enum from section 3.4: +// enum { timestamped_entry(0), (255) } MerkleLeafType; +type MerkleLeafType tls.Enum // tls:"maxval:255" + +// TimestampedEntryLeafType is the only defined MerkleLeafType constant from section 3.4. +const TimestampedEntryLeafType MerkleLeafType = 0 // Entry type for an SCT + +func (m MerkleLeafType) String() string { + switch m { + case TimestampedEntryLeafType: + return "TimestampedEntryLeafType" + default: + return fmt.Sprintf("UnknownLeafType(%d)", m) + } +} + +// Version represents the Version enum from section 3.2: +// enum { v1(0), (255) } Version; +type Version tls.Enum // tls:"maxval:255" + +// CT Version constants from section 3.2. +const ( + V1 Version = 0 +) + +func (v Version) String() string { + switch v { + case V1: + return "V1" + default: + return fmt.Sprintf("UnknownVersion(%d)", v) + } +} + +// SignatureType differentiates STH signatures from SCT signatures, see section 3.2. +// enum { certificate_timestamp(0), tree_hash(1), (255) } SignatureType; +type SignatureType tls.Enum // tls:"maxval:255" + +// SignatureType constants from section 3.2. +const ( + CertificateTimestampSignatureType SignatureType = 0 + TreeHashSignatureType SignatureType = 1 +) + +func (st SignatureType) String() string { + switch st { + case CertificateTimestampSignatureType: + return "CertificateTimestamp" + case TreeHashSignatureType: + return "TreeHash" + default: + return fmt.Sprintf("UnknownSignatureType(%d)", st) + } +} + +// ASN1Cert type for holding the raw DER bytes of an ASN.1 Certificate +// (section 3.1). +type ASN1Cert struct { + Data []byte `tls:"minlen:1,maxlen:16777215"` +} + +// LogID holds the hash of the Log's public key (section 3.2). +// TODO(pphaneuf): Users should be migrated to the one in the logid package. +type LogID struct { + KeyID [sha256.Size]byte +} + +// PreCert represents a Precertificate (section 3.2). +type PreCert struct { + IssuerKeyHash [sha256.Size]byte + TBSCertificate []byte `tls:"minlen:1,maxlen:16777215"` // DER-encoded TBSCertificate +} + +// CTExtensions is a representation of the raw bytes of any CtExtension +// structure (see section 3.2). +// nolint: golint +type CTExtensions []byte // tls:"minlen:0,maxlen:65535"` + +// MerkleTreeNode represents an internal node in the CT tree. +type MerkleTreeNode []byte + +// ConsistencyProof represents a CT consistency proof (see sections 2.1.2 and +// 4.4). +type ConsistencyProof []MerkleTreeNode + +// AuditPath represents a CT inclusion proof (see sections 2.1.1 and 4.5). +type AuditPath []MerkleTreeNode + +// LeafInput represents a serialized MerkleTreeLeaf structure. +type LeafInput []byte + +// DigitallySigned is a local alias for tls.DigitallySigned so that we can +// attach a MarshalJSON method. +type DigitallySigned tls.DigitallySigned + +// FromBase64String populates the DigitallySigned structure from the base64 data passed in. +// Returns an error if the base64 data is invalid. +func (d *DigitallySigned) FromBase64String(b64 string) error { + raw, err := base64.StdEncoding.DecodeString(b64) + if err != nil { + return fmt.Errorf("failed to unbase64 DigitallySigned: %v", err) + } + var ds tls.DigitallySigned + if rest, err := tls.Unmarshal(raw, &ds); err != nil { + return fmt.Errorf("failed to unmarshal DigitallySigned: %v", err) + } else if len(rest) > 0 { + return fmt.Errorf("trailing data (%d bytes) after DigitallySigned", len(rest)) + } + *d = DigitallySigned(ds) + return nil +} + +// Base64String returns the base64 representation of the DigitallySigned struct. +func (d DigitallySigned) Base64String() (string, error) { + b, err := tls.Marshal(d) + if err != nil { + return "", err + } + return base64.StdEncoding.EncodeToString(b), nil +} + +// MarshalJSON implements the json.Marshaller interface. +func (d DigitallySigned) MarshalJSON() ([]byte, error) { + b64, err := d.Base64String() + if err != nil { + return []byte{}, err + } + return []byte(`"` + b64 + `"`), nil +} + +// UnmarshalJSON implements the json.Unmarshaler interface. +func (d *DigitallySigned) UnmarshalJSON(b []byte) error { + var content string + if err := json.Unmarshal(b, &content); err != nil { + return fmt.Errorf("failed to unmarshal DigitallySigned: %v", err) + } + return d.FromBase64String(content) +} + +// RawLogEntry represents the (TLS-parsed) contents of an entry in a CT log. +type RawLogEntry struct { + // Index is a position of the entry in the log. + Index int64 + // Leaf is a parsed Merkle leaf hash input. + Leaf MerkleTreeLeaf + // Cert is: + // - A certificate if Leaf.TimestampedEntry.EntryType is X509LogEntryType. + // - A precertificate if Leaf.TimestampedEntry.EntryType is + // PrecertLogEntryType, in the form of a DER-encoded Certificate as + // originally added (which includes the poison extension and a signature + // generated over the pre-cert by the pre-cert issuer). + // - Empty otherwise. + Cert ASN1Cert + // Chain is the issuing certificate chain starting with the issuer of Cert, + // or an empty slice if Cert is empty. + Chain []ASN1Cert +} + +// LogEntry represents the (parsed) contents of an entry in a CT log. This is described +// in section 3.1, but note that this structure does *not* match the TLS structure +// defined there (the TLS structure is never used directly in RFC6962). +type LogEntry struct { + Index int64 + Leaf MerkleTreeLeaf + // Exactly one of the following three fields should be non-empty. + X509Cert *x509.Certificate // Parsed X.509 certificate + Precert *Precertificate // Extracted precertificate + JSONData []byte + + // Chain holds the issuing certificate chain, starting with the + // issuer of the leaf certificate / pre-certificate. + Chain []ASN1Cert +} + +// PrecertChainEntry holds an precertificate together with a validation chain +// for it; see section 3.1. +type PrecertChainEntry struct { + PreCertificate ASN1Cert `tls:"minlen:1,maxlen:16777215"` + CertificateChain []ASN1Cert `tls:"minlen:0,maxlen:16777215"` +} + +// CertificateChain holds a chain of certificates, as returned as extra data +// for get-entries (section 4.6). +type CertificateChain struct { + Entries []ASN1Cert `tls:"minlen:0,maxlen:16777215"` +} + +// JSONDataEntry holds arbitrary data. +type JSONDataEntry struct { + Data []byte `tls:"minlen:0,maxlen:1677215"` +} + +// SHA256Hash represents the output from the SHA256 hash function. +type SHA256Hash [sha256.Size]byte + +// FromBase64String populates the SHA256 struct with the contents of the base64 data passed in. +func (s *SHA256Hash) FromBase64String(b64 string) error { + bs, err := base64.StdEncoding.DecodeString(b64) + if err != nil { + return fmt.Errorf("failed to unbase64 LogID: %v", err) + } + if len(bs) != sha256.Size { + return fmt.Errorf("invalid SHA256 length, expected 32 but got %d", len(bs)) + } + copy(s[:], bs) + return nil +} + +// Base64String returns the base64 representation of this SHA256Hash. +func (s SHA256Hash) Base64String() string { + return base64.StdEncoding.EncodeToString(s[:]) +} + +// MarshalJSON implements the json.Marshaller interface for SHA256Hash. +func (s SHA256Hash) MarshalJSON() ([]byte, error) { + return []byte(`"` + s.Base64String() + `"`), nil +} + +// UnmarshalJSON implements the json.Unmarshaller interface. +func (s *SHA256Hash) UnmarshalJSON(b []byte) error { + var content string + if err := json.Unmarshal(b, &content); err != nil { + return fmt.Errorf("failed to unmarshal SHA256Hash: %v", err) + } + return s.FromBase64String(content) +} + +// SignedTreeHead represents the structure returned by the get-sth CT method +// after base64 decoding; see sections 3.5 and 4.3. +type SignedTreeHead struct { + Version Version `json:"sth_version"` // The version of the protocol to which the STH conforms + TreeSize uint64 `json:"tree_size"` // The number of entries in the new tree + Timestamp uint64 `json:"timestamp"` // The time at which the STH was created + SHA256RootHash SHA256Hash `json:"sha256_root_hash"` // The root hash of the log's Merkle tree + TreeHeadSignature DigitallySigned `json:"tree_head_signature"` // Log's signature over a TLS-encoded TreeHeadSignature + LogID SHA256Hash `json:"log_id"` // The SHA256 hash of the log's public key +} + +// TreeHeadSignature holds the data over which the signature in an STH is +// generated; see section 3.5 +type TreeHeadSignature struct { + Version Version `tls:"maxval:255"` + SignatureType SignatureType `tls:"maxval:255"` // == TreeHashSignatureType + Timestamp uint64 + TreeSize uint64 + SHA256RootHash SHA256Hash +} + +// SignedCertificateTimestamp represents the structure returned by the +// add-chain and add-pre-chain methods after base64 decoding; see sections +// 3.2, 4.1 and 4.2. +type SignedCertificateTimestamp struct { + SCTVersion Version `tls:"maxval:255"` + LogID LogID + Timestamp uint64 + Extensions CTExtensions `tls:"minlen:0,maxlen:65535"` + Signature DigitallySigned // Signature over TLS-encoded CertificateTimestamp +} + +// CertificateTimestamp is the collection of data that the signature in an +// SCT is over; see section 3.2. +type CertificateTimestamp struct { + SCTVersion Version `tls:"maxval:255"` + SignatureType SignatureType `tls:"maxval:255"` + Timestamp uint64 + EntryType LogEntryType `tls:"maxval:65535"` + X509Entry *ASN1Cert `tls:"selector:EntryType,val:0"` + PrecertEntry *PreCert `tls:"selector:EntryType,val:1"` + JSONEntry *JSONDataEntry `tls:"selector:EntryType,val:32768"` + Extensions CTExtensions `tls:"minlen:0,maxlen:65535"` +} + +func (s SignedCertificateTimestamp) String() string { + return fmt.Sprintf("{Version:%d LogId:%s Timestamp:%d Extensions:'%s' Signature:%v}", s.SCTVersion, + base64.StdEncoding.EncodeToString(s.LogID.KeyID[:]), + s.Timestamp, + s.Extensions, + s.Signature) +} + +// TimestampedEntry is part of the MerkleTreeLeaf structure; see section 3.4. +type TimestampedEntry struct { + Timestamp uint64 + EntryType LogEntryType `tls:"maxval:65535"` + X509Entry *ASN1Cert `tls:"selector:EntryType,val:0"` + PrecertEntry *PreCert `tls:"selector:EntryType,val:1"` + JSONEntry *JSONDataEntry `tls:"selector:EntryType,val:32768"` + Extensions CTExtensions `tls:"minlen:0,maxlen:65535"` +} + +// MerkleTreeLeaf represents the deserialized structure of the hash input for the +// leaves of a log's Merkle tree; see section 3.4. +type MerkleTreeLeaf struct { + Version Version `tls:"maxval:255"` + LeafType MerkleLeafType `tls:"maxval:255"` + TimestampedEntry *TimestampedEntry `tls:"selector:LeafType,val:0"` +} + +// Precertificate represents the parsed CT Precertificate structure. +type Precertificate struct { + // DER-encoded pre-certificate as originally added, which includes a + // poison extension and a signature generated over the pre-cert by + // the pre-cert issuer (which might differ from the issuer of the final + // cert, see RFC6962 s3.1). + Submitted ASN1Cert + // SHA256 hash of the issuing key + IssuerKeyHash [sha256.Size]byte + // Parsed TBSCertificate structure, held in an x509.Certificate for convenience. + TBSCertificate *x509.Certificate +} + +// X509Certificate returns the X.509 Certificate contained within the +// MerkleTreeLeaf. +func (m *MerkleTreeLeaf) X509Certificate() (*x509.Certificate, error) { + if m.TimestampedEntry.EntryType != X509LogEntryType { + return nil, fmt.Errorf("cannot call X509Certificate on a MerkleTreeLeaf that is not an X509 entry") + } + return x509.ParseCertificate(m.TimestampedEntry.X509Entry.Data) +} + +// Precertificate returns the X.509 Precertificate contained within the MerkleTreeLeaf. +// +// The returned precertificate is embedded in an x509.Certificate, but is in the +// form stored internally in the log rather than the original submitted form +// (i.e. it does not include the poison extension and any changes to reflect the +// final certificate's issuer have been made; see x509.BuildPrecertTBS). +func (m *MerkleTreeLeaf) Precertificate() (*x509.Certificate, error) { + if m.TimestampedEntry.EntryType != PrecertLogEntryType { + return nil, fmt.Errorf("cannot call Precertificate on a MerkleTreeLeaf that is not a precert entry") + } + return x509.ParseTBSCertificate(m.TimestampedEntry.PrecertEntry.TBSCertificate) +} + +// APIEndpoint is a string that represents one of the Certificate Transparency +// Log API endpoints. +type APIEndpoint string + +// Certificate Transparency Log API endpoints; see section 4. +// WARNING: Should match the URI paths without the "/ct/v1/" prefix. If +// changing these constants, may need to change those too. +const ( + AddChainStr APIEndpoint = "add-chain" + AddPreChainStr APIEndpoint = "add-pre-chain" + GetSTHStr APIEndpoint = "get-sth" + GetEntriesStr APIEndpoint = "get-entries" + GetProofByHashStr APIEndpoint = "get-proof-by-hash" + GetSTHConsistencyStr APIEndpoint = "get-sth-consistency" + GetRootsStr APIEndpoint = "get-roots" + GetEntryAndProofStr APIEndpoint = "get-entry-and-proof" +) + +// URI paths for Log requests; see section 4. +// WARNING: Should match the API endpoints, with the "/ct/v1/" prefix. If +// changing these constants, may need to change those too. +const ( + AddChainPath = "/ct/v1/add-chain" + AddPreChainPath = "/ct/v1/add-pre-chain" + GetSTHPath = "/ct/v1/get-sth" + GetEntriesPath = "/ct/v1/get-entries" + GetProofByHashPath = "/ct/v1/get-proof-by-hash" + GetSTHConsistencyPath = "/ct/v1/get-sth-consistency" + GetRootsPath = "/ct/v1/get-roots" + GetEntryAndProofPath = "/ct/v1/get-entry-and-proof" + + AddJSONPath = "/ct/v1/add-json" // Experimental addition +) + +// AddChainRequest represents the JSON request body sent to the add-chain and +// add-pre-chain POST methods from sections 4.1 and 4.2. +type AddChainRequest struct { + Chain [][]byte `json:"chain"` +} + +// AddChainResponse represents the JSON response to the add-chain and +// add-pre-chain POST methods. +// An SCT represents a Log's promise to integrate a [pre-]certificate into the +// log within a defined period of time. +type AddChainResponse struct { + SCTVersion Version `json:"sct_version"` // SCT structure version + ID []byte `json:"id"` // Log ID + Timestamp uint64 `json:"timestamp"` // Timestamp of issuance + Extensions string `json:"extensions"` // Holder for any CT extensions + Signature []byte `json:"signature"` // Log signature for this SCT +} + +// AddJSONRequest represents the JSON request body sent to the add-json POST method. +// The corresponding response re-uses AddChainResponse. +// This is an experimental addition not covered by RFC6962. +type AddJSONRequest struct { + Data interface{} `json:"data"` +} + +// GetSTHResponse respresents the JSON response to the get-sth GET method from section 4.3. +type GetSTHResponse struct { + TreeSize uint64 `json:"tree_size"` // Number of certs in the current tree + Timestamp uint64 `json:"timestamp"` // Time that the tree was created + SHA256RootHash []byte `json:"sha256_root_hash"` // Root hash of the tree + TreeHeadSignature []byte `json:"tree_head_signature"` // Log signature for this STH +} + +// ToSignedTreeHead creates a SignedTreeHead from the GetSTHResponse. +func (r *GetSTHResponse) ToSignedTreeHead() (*SignedTreeHead, error) { + sth := SignedTreeHead{ + TreeSize: r.TreeSize, + Timestamp: r.Timestamp, + } + + if len(r.SHA256RootHash) != sha256.Size { + return nil, fmt.Errorf("sha256_root_hash is invalid length, expected %d got %d", sha256.Size, len(r.SHA256RootHash)) + } + copy(sth.SHA256RootHash[:], r.SHA256RootHash) + + var ds DigitallySigned + if rest, err := tls.Unmarshal(r.TreeHeadSignature, &ds); err != nil { + return nil, fmt.Errorf("tls.Unmarshal(): %s", err) + } else if len(rest) > 0 { + return nil, fmt.Errorf("trailing data (%d bytes) after DigitallySigned", len(rest)) + } + sth.TreeHeadSignature = ds + + return &sth, nil +} + +// GetSTHConsistencyResponse represents the JSON response to the get-sth-consistency +// GET method from section 4.4. (The corresponding GET request has parameters 'first' and +// 'second'.) +type GetSTHConsistencyResponse struct { + Consistency [][]byte `json:"consistency"` +} + +// GetProofByHashResponse represents the JSON response to the get-proof-by-hash GET +// method from section 4.5. (The corresponding GET request has parameters 'hash' +// and 'tree_size'.) +type GetProofByHashResponse struct { + LeafIndex int64 `json:"leaf_index"` // The 0-based index of the end entity corresponding to the "hash" parameter. + AuditPath [][]byte `json:"audit_path"` // An array of base64-encoded Merkle Tree nodes proving the inclusion of the chosen certificate. +} + +// LeafEntry represents a leaf in the Log's Merkle tree, as returned by the get-entries +// GET method from section 4.6. +type LeafEntry struct { + // LeafInput is a TLS-encoded MerkleTreeLeaf + LeafInput []byte `json:"leaf_input"` + // ExtraData holds (unsigned) extra data, normally the cert validation chain. + ExtraData []byte `json:"extra_data"` +} + +// GetEntriesResponse respresents the JSON response to the get-entries GET method +// from section 4.6. +type GetEntriesResponse struct { + Entries []LeafEntry `json:"entries"` // the list of returned entries +} + +// GetRootsResponse represents the JSON response to the get-roots GET method from section 4.7. +type GetRootsResponse struct { + Certificates []string `json:"certificates"` +} + +// GetEntryAndProofResponse represents the JSON response to the get-entry-and-proof +// GET method from section 4.8. (The corresponding GET request has parameters 'leaf_index' +// and 'tree_size'.) +type GetEntryAndProofResponse struct { + LeafInput []byte `json:"leaf_input"` // the entry itself + ExtraData []byte `json:"extra_data"` // any chain provided when the entry was added to the log + AuditPath [][]byte `json:"audit_path"` // the corresponding proof +} diff --git a/vendor/github.com/google/certificate-transparency-go/x509/cert_pool.go b/vendor/github.com/google/certificate-transparency-go/x509/cert_pool.go new file mode 100644 index 0000000000000..1196479a0c6b2 --- /dev/null +++ b/vendor/github.com/google/certificate-transparency-go/x509/cert_pool.go @@ -0,0 +1,143 @@ +// Copyright 2011 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package x509 + +import ( + "encoding/pem" + "errors" + "runtime" +) + +// CertPool is a set of certificates. +type CertPool struct { + bySubjectKeyId map[string][]int + byName map[string][]int + certs []*Certificate +} + +// NewCertPool returns a new, empty CertPool. +func NewCertPool() *CertPool { + return &CertPool{ + bySubjectKeyId: make(map[string][]int), + byName: make(map[string][]int), + } +} + +// SystemCertPool returns a copy of the system cert pool. +// +// Any mutations to the returned pool are not written to disk and do +// not affect any other pool. +func SystemCertPool() (*CertPool, error) { + if runtime.GOOS == "windows" { + // Issue 16736, 18609: + return nil, errors.New("crypto/x509: system root pool is not available on Windows") + } + + return loadSystemRoots() +} + +// findVerifiedParents attempts to find certificates in s which have signed the +// given certificate. If any candidates were rejected then errCert will be set +// to one of them, arbitrarily, and err will contain the reason that it was +// rejected. +func (s *CertPool) findVerifiedParents(cert *Certificate) (parents []int, errCert *Certificate, err error) { + if s == nil { + return + } + var candidates []int + + if len(cert.AuthorityKeyId) > 0 { + candidates = s.bySubjectKeyId[string(cert.AuthorityKeyId)] + } + if len(candidates) == 0 { + candidates = s.byName[string(cert.RawIssuer)] + } + + for _, c := range candidates { + if err = cert.CheckSignatureFrom(s.certs[c]); err == nil { + parents = append(parents, c) + } else { + errCert = s.certs[c] + } + } + + return +} + +func (s *CertPool) contains(cert *Certificate) bool { + if s == nil { + return false + } + + candidates := s.byName[string(cert.RawSubject)] + for _, c := range candidates { + if s.certs[c].Equal(cert) { + return true + } + } + + return false +} + +// AddCert adds a certificate to a pool. +func (s *CertPool) AddCert(cert *Certificate) { + if cert == nil { + panic("adding nil Certificate to CertPool") + } + + // Check that the certificate isn't being added twice. + if s.contains(cert) { + return + } + + n := len(s.certs) + s.certs = append(s.certs, cert) + + if len(cert.SubjectKeyId) > 0 { + keyId := string(cert.SubjectKeyId) + s.bySubjectKeyId[keyId] = append(s.bySubjectKeyId[keyId], n) + } + name := string(cert.RawSubject) + s.byName[name] = append(s.byName[name], n) +} + +// AppendCertsFromPEM attempts to parse a series of PEM encoded certificates. +// It appends any certificates found to s and reports whether any certificates +// were successfully parsed. +// +// On many Linux systems, /etc/ssl/cert.pem will contain the system wide set +// of root CAs in a format suitable for this function. +func (s *CertPool) AppendCertsFromPEM(pemCerts []byte) (ok bool) { + for len(pemCerts) > 0 { + var block *pem.Block + block, pemCerts = pem.Decode(pemCerts) + if block == nil { + break + } + if block.Type != "CERTIFICATE" || len(block.Headers) != 0 { + continue + } + + cert, err := ParseCertificate(block.Bytes) + if IsFatal(err) { + continue + } + + s.AddCert(cert) + ok = true + } + + return +} + +// Subjects returns a list of the DER-encoded subjects of +// all of the certificates in the pool. +func (s *CertPool) Subjects() [][]byte { + res := make([][]byte, len(s.certs)) + for i, c := range s.certs { + res[i] = c.RawSubject + } + return res +} diff --git a/vendor/github.com/google/certificate-transparency-go/x509/curves.go b/vendor/github.com/google/certificate-transparency-go/x509/curves.go new file mode 100644 index 0000000000000..0e2778cb353e4 --- /dev/null +++ b/vendor/github.com/google/certificate-transparency-go/x509/curves.go @@ -0,0 +1,37 @@ +// Copyright 2018 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package x509 + +import ( + "crypto/elliptic" + "math/big" + "sync" +) + +// This file holds ECC curves that are not supported by the main Go crypto/elliptic +// library, but which have been observed in certificates in the wild. + +var initonce sync.Once +var p192r1 *elliptic.CurveParams + +func initAllCurves() { + initSECP192R1() +} + +func initSECP192R1() { + // See SEC-2, section 2.2.2 + p192r1 = &elliptic.CurveParams{Name: "P-192"} + p192r1.P, _ = new(big.Int).SetString("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFFFFFFFFFF", 16) + p192r1.N, _ = new(big.Int).SetString("FFFFFFFFFFFFFFFFFFFFFFFF99DEF836146BC9B1B4D22831", 16) + p192r1.B, _ = new(big.Int).SetString("64210519E59C80E70FA7E9AB72243049FEB8DEECC146B9B1", 16) + p192r1.Gx, _ = new(big.Int).SetString("188DA80EB03090F67CBF20EB43A18800F4FF0AFD82FF1012", 16) + p192r1.Gy, _ = new(big.Int).SetString("07192B95FFC8DA78631011ED6B24CDD573F977A11E794811", 16) + p192r1.BitSize = 192 +} + +func secp192r1() elliptic.Curve { + initonce.Do(initAllCurves) + return p192r1 +} diff --git a/vendor/github.com/google/certificate-transparency-go/x509/error.go b/vendor/github.com/google/certificate-transparency-go/x509/error.go new file mode 100644 index 0000000000000..63360ec8e26e2 --- /dev/null +++ b/vendor/github.com/google/certificate-transparency-go/x509/error.go @@ -0,0 +1,230 @@ +package x509 + +import ( + "bytes" + "fmt" + "strconv" + "strings" +) + +// Error implements the error interface and describes a single error in an X.509 certificate or CRL. +type Error struct { + ID ErrorID + Category ErrCategory + Summary string + Field string + SpecRef string + SpecText string + // Fatal indicates that parsing has been aborted. + Fatal bool +} + +func (err Error) Error() string { + var msg bytes.Buffer + if err.ID != ErrInvalidID { + if err.Fatal { + msg.WriteRune('E') + } else { + msg.WriteRune('W') + } + msg.WriteString(fmt.Sprintf("%03d: ", err.ID)) + } + msg.WriteString(err.Summary) + return msg.String() +} + +// VerboseError creates a more verbose error string, including spec details. +func (err Error) VerboseError() string { + var msg bytes.Buffer + msg.WriteString(err.Error()) + if len(err.Field) > 0 || err.Category != UnknownCategory || len(err.SpecRef) > 0 || len(err.SpecText) > 0 { + msg.WriteString(" (") + needSep := false + if len(err.Field) > 0 { + msg.WriteString(err.Field) + needSep = true + } + if err.Category != UnknownCategory { + if needSep { + msg.WriteString(": ") + } + msg.WriteString(err.Category.String()) + needSep = true + } + if len(err.SpecRef) > 0 { + if needSep { + msg.WriteString(": ") + } + msg.WriteString(err.SpecRef) + needSep = true + } + if len(err.SpecText) > 0 { + if needSep { + if len(err.SpecRef) > 0 { + msg.WriteString(", ") + } else { + msg.WriteString(": ") + } + } + msg.WriteString("'") + msg.WriteString(err.SpecText) + msg.WriteString("'") + } + msg.WriteString(")") + } + + return msg.String() +} + +// ErrCategory indicates the category of an x509.Error. +type ErrCategory int + +// ErrCategory values. +const ( + UnknownCategory ErrCategory = iota + // Errors in ASN.1 encoding + InvalidASN1Encoding + InvalidASN1Content + InvalidASN1DER + // Errors in ASN.1 relative to schema + InvalidValueRange + InvalidASN1Type + UnexpectedAdditionalData + // Errors in X.509 + PoorlyFormedCertificate // Fails a SHOULD clause + MalformedCertificate // Fails a MUST clause + PoorlyFormedCRL // Fails a SHOULD clause + MalformedCRL // Fails a MUST clause + // Errors relative to CA/Browser Forum guidelines + BaselineRequirementsFailure + EVRequirementsFailure + // Other errors + InsecureAlgorithm + UnrecognizedValue +) + +func (category ErrCategory) String() string { + switch category { + case InvalidASN1Encoding: + return "Invalid ASN.1 encoding" + case InvalidASN1Content: + return "Invalid ASN.1 content" + case InvalidASN1DER: + return "Invalid ASN.1 distinguished encoding" + case InvalidValueRange: + return "Invalid value for range given in schema" + case InvalidASN1Type: + return "Invalid ASN.1 type for schema" + case UnexpectedAdditionalData: + return "Unexpected additional data present" + case PoorlyFormedCertificate: + return "Certificate does not comply with SHOULD clause in spec" + case MalformedCertificate: + return "Certificate does not comply with MUST clause in spec" + case PoorlyFormedCRL: + return "Certificate Revocation List does not comply with SHOULD clause in spec" + case MalformedCRL: + return "Certificate Revocation List does not comply with MUST clause in spec" + case BaselineRequirementsFailure: + return "Certificate does not comply with CA/BF baseline requirements" + case EVRequirementsFailure: + return "Certificate does not comply with CA/BF EV requirements" + case InsecureAlgorithm: + return "Certificate uses an insecure algorithm" + case UnrecognizedValue: + return "Certificate uses an unrecognized value" + default: + return fmt.Sprintf("Unknown (%d)", category) + } +} + +// ErrorID is an identifier for an x509.Error, to allow filtering. +type ErrorID int + +// Errors implements the error interface and holds a collection of errors found in a certificate or CRL. +type Errors struct { + Errs []Error +} + +// Error converts to a string. +func (e *Errors) Error() string { + return e.combineErrors(Error.Error) +} + +// VerboseError creates a more verbose error string, including spec details. +func (e *Errors) VerboseError() string { + return e.combineErrors(Error.VerboseError) +} + +// Fatal indicates whether e includes a fatal error +func (e *Errors) Fatal() bool { + return (e.FirstFatal() != nil) +} + +// Empty indicates whether e has no errors. +func (e *Errors) Empty() bool { + return len(e.Errs) == 0 +} + +// FirstFatal returns the first fatal error in e, or nil +// if there is no fatal error. +func (e *Errors) FirstFatal() error { + for _, err := range e.Errs { + if err.Fatal { + return err + } + } + return nil + +} + +// AddID adds the Error identified by the given id to an x509.Errors. +func (e *Errors) AddID(id ErrorID, args ...interface{}) { + e.Errs = append(e.Errs, NewError(id, args...)) +} + +func (e Errors) combineErrors(errfn func(Error) string) string { + if len(e.Errs) == 0 { + return "" + } + if len(e.Errs) == 1 { + return errfn((e.Errs)[0]) + } + var msg bytes.Buffer + msg.WriteString("Errors:") + for _, err := range e.Errs { + msg.WriteString("\n ") + msg.WriteString(errfn(err)) + } + return msg.String() +} + +// Filter creates a new Errors object with any entries from the filtered +// list of IDs removed. +func (e Errors) Filter(filtered []ErrorID) Errors { + var results Errors +eloop: + for _, v := range e.Errs { + for _, f := range filtered { + if v.ID == f { + break eloop + } + } + results.Errs = append(results.Errs, v) + } + return results +} + +// ErrorFilter builds a list of error IDs (suitable for use with Errors.Filter) from a comma-separated string. +func ErrorFilter(ignore string) []ErrorID { + var ids []ErrorID + filters := strings.Split(ignore, ",") + for _, f := range filters { + v, err := strconv.Atoi(f) + if err != nil { + continue + } + ids = append(ids, ErrorID(v)) + } + return ids +} diff --git a/vendor/github.com/google/certificate-transparency-go/x509/errors.go b/vendor/github.com/google/certificate-transparency-go/x509/errors.go new file mode 100644 index 0000000000000..ec2fe06a99fb5 --- /dev/null +++ b/vendor/github.com/google/certificate-transparency-go/x509/errors.go @@ -0,0 +1,302 @@ +package x509 + +import "fmt" + +// To preserve error IDs, only append to this list, never insert. +const ( + ErrInvalidID ErrorID = iota + ErrInvalidCertList + ErrTrailingCertList + ErrUnexpectedlyCriticalCertListExtension + ErrUnexpectedlyNonCriticalCertListExtension + ErrInvalidCertListAuthKeyID + ErrTrailingCertListAuthKeyID + ErrInvalidCertListIssuerAltName + ErrInvalidCertListCRLNumber + ErrTrailingCertListCRLNumber + ErrNegativeCertListCRLNumber + ErrInvalidCertListDeltaCRL + ErrTrailingCertListDeltaCRL + ErrNegativeCertListDeltaCRL + ErrInvalidCertListIssuingDP + ErrTrailingCertListIssuingDP + ErrCertListIssuingDPMultipleTypes + ErrCertListIssuingDPInvalidFullName + ErrInvalidCertListFreshestCRL + ErrInvalidCertListAuthInfoAccess + ErrTrailingCertListAuthInfoAccess + ErrUnhandledCriticalCertListExtension + ErrUnexpectedlyCriticalRevokedCertExtension + ErrUnexpectedlyNonCriticalRevokedCertExtension + ErrInvalidRevocationReason + ErrTrailingRevocationReason + ErrInvalidRevocationInvalidityDate + ErrTrailingRevocationInvalidityDate + ErrInvalidRevocationIssuer + ErrUnhandledCriticalRevokedCertExtension + + ErrMaxID +) + +// idToError gives a template x509.Error for each defined ErrorID; where the Summary +// field may hold format specifiers that take field parameters. +var idToError map[ErrorID]Error + +var errorInfo = []Error{ + { + ID: ErrInvalidCertList, + Summary: "x509: failed to parse CertificateList: %v", + Field: "CertificateList", + SpecRef: "RFC 5280 s5.1", + Category: InvalidASN1Content, + Fatal: true, + }, + { + ID: ErrTrailingCertList, + Summary: "x509: trailing data after CertificateList", + Field: "CertificateList", + SpecRef: "RFC 5280 s5.1", + Category: InvalidASN1Content, + Fatal: true, + }, + + { + ID: ErrUnexpectedlyCriticalCertListExtension, + Summary: "x509: certificate list extension %v marked critical but expected to be non-critical", + Field: "tbsCertList.crlExtensions.*.critical", + SpecRef: "RFC 5280 s5.2", + Category: MalformedCRL, + }, + { + ID: ErrUnexpectedlyNonCriticalCertListExtension, + Summary: "x509: certificate list extension %v marked non-critical but expected to be critical", + Field: "tbsCertList.crlExtensions.*.critical", + SpecRef: "RFC 5280 s5.2", + Category: MalformedCRL, + }, + + { + ID: ErrInvalidCertListAuthKeyID, + Summary: "x509: failed to unmarshal certificate-list authority key-id: %v", + Field: "tbsCertList.crlExtensions.*.AuthorityKeyIdentifier", + SpecRef: "RFC 5280 s5.2.1", + Category: InvalidASN1Content, + Fatal: true, + }, + { + ID: ErrTrailingCertListAuthKeyID, + Summary: "x509: trailing data after certificate list auth key ID", + Field: "tbsCertList.crlExtensions.*.AuthorityKeyIdentifier", + SpecRef: "RFC 5280 s5.2.1", + Category: InvalidASN1Content, + Fatal: true, + }, + { + ID: ErrInvalidCertListIssuerAltName, + Summary: "x509: failed to parse CRL issuer alt name: %v", + Field: "tbsCertList.crlExtensions.*.IssuerAltName", + SpecRef: "RFC 5280 s5.2.2", + Category: InvalidASN1Content, + Fatal: true, + }, + { + ID: ErrInvalidCertListCRLNumber, + Summary: "x509: failed to unmarshal certificate-list crl-number: %v", + Field: "tbsCertList.crlExtensions.*.CRLNumber", + SpecRef: "RFC 5280 s5.2.3", + Category: InvalidASN1Content, + Fatal: true, + }, + { + ID: ErrTrailingCertListCRLNumber, + Summary: "x509: trailing data after certificate list crl-number", + Field: "tbsCertList.crlExtensions.*.CRLNumber", + SpecRef: "RFC 5280 s5.2.3", + Category: InvalidASN1Content, + Fatal: true, + }, + { + ID: ErrNegativeCertListCRLNumber, + Summary: "x509: negative certificate list crl-number: %d", + Field: "tbsCertList.crlExtensions.*.CRLNumber", + SpecRef: "RFC 5280 s5.2.3", + Category: MalformedCRL, + Fatal: true, + }, + { + ID: ErrInvalidCertListDeltaCRL, + Summary: "x509: failed to unmarshal certificate-list delta-crl: %v", + Field: "tbsCertList.crlExtensions.*.BaseCRLNumber", + SpecRef: "RFC 5280 s5.2.4", + Category: InvalidASN1Content, + Fatal: true, + }, + { + ID: ErrTrailingCertListDeltaCRL, + Summary: "x509: trailing data after certificate list delta-crl", + Field: "tbsCertList.crlExtensions.*.BaseCRLNumber", + SpecRef: "RFC 5280 s5.2.4", + Category: InvalidASN1Content, + Fatal: true, + }, + { + ID: ErrNegativeCertListDeltaCRL, + Summary: "x509: negative certificate list base-crl-number: %d", + Field: "tbsCertList.crlExtensions.*.BaseCRLNumber", + SpecRef: "RFC 5280 s5.2.4", + Category: MalformedCRL, + Fatal: true, + }, + { + ID: ErrInvalidCertListIssuingDP, + Summary: "x509: failed to unmarshal certificate list issuing distribution point: %v", + Field: "tbsCertList.crlExtensions.*.IssuingDistributionPoint", + SpecRef: "RFC 5280 s5.2.5", + Category: InvalidASN1Content, + Fatal: true, + }, + { + ID: ErrTrailingCertListIssuingDP, + Summary: "x509: trailing data after certificate list issuing distribution point", + Field: "tbsCertList.crlExtensions.*.IssuingDistributionPoint", + SpecRef: "RFC 5280 s5.2.5", + Category: InvalidASN1Content, + Fatal: true, + }, + { + ID: ErrCertListIssuingDPMultipleTypes, + Summary: "x509: multiple cert types set in issuing-distribution-point: user:%v CA:%v attr:%v", + Field: "tbsCertList.crlExtensions.*.IssuingDistributionPoint", + SpecRef: "RFC 5280 s5.2.5", + SpecText: "at most one of onlyContainsUserCerts, onlyContainsCACerts, and onlyContainsAttributeCerts may be set to TRUE.", + Category: MalformedCRL, + Fatal: true, + }, + { + ID: ErrCertListIssuingDPInvalidFullName, + Summary: "x509: failed to parse CRL issuing-distribution-point fullName: %v", + Field: "tbsCertList.crlExtensions.*.IssuingDistributionPoint.distributionPoint", + SpecRef: "RFC 5280 s5.2.5", + Category: InvalidASN1Content, + Fatal: true, + }, + { + ID: ErrInvalidCertListFreshestCRL, + Summary: "x509: failed to unmarshal certificate list freshestCRL: %v", + Field: "tbsCertList.crlExtensions.*.FreshestCRL", + SpecRef: "RFC 5280 s5.2.6", + Category: InvalidASN1Content, + Fatal: true, + }, + { + ID: ErrInvalidCertListAuthInfoAccess, + Summary: "x509: failed to unmarshal certificate list authority info access: %v", + Field: "tbsCertList.crlExtensions.*.AuthorityInfoAccess", + SpecRef: "RFC 5280 s5.2.7", + Category: InvalidASN1Content, + Fatal: true, + }, + { + ID: ErrTrailingCertListAuthInfoAccess, + Summary: "x509: trailing data after certificate list authority info access", + Field: "tbsCertList.crlExtensions.*.AuthorityInfoAccess", + SpecRef: "RFC 5280 s5.2.7", + Category: InvalidASN1Content, + Fatal: true, + }, + { + ID: ErrUnhandledCriticalCertListExtension, + Summary: "x509: unhandled critical extension in certificate list: %v", + Field: "tbsCertList.revokedCertificates.crlExtensions.*", + SpecRef: "RFC 5280 s5.2", + SpecText: "If a CRL contains a critical extension that the application cannot process, then the application MUST NOT use that CRL to determine the status of certificates.", + Category: MalformedCRL, + Fatal: true, + }, + + { + ID: ErrUnexpectedlyCriticalRevokedCertExtension, + Summary: "x509: revoked certificate extension %v marked critical but expected to be non-critical", + Field: "tbsCertList.revokedCertificates.crlEntryExtensions.*.critical", + SpecRef: "RFC 5280 s5.3", + Category: MalformedCRL, + }, + { + ID: ErrUnexpectedlyNonCriticalRevokedCertExtension, + Summary: "x509: revoked certificate extension %v marked non-critical but expected to be critical", + Field: "tbsCertList.revokedCertificates.crlEntryExtensions.*.critical", + SpecRef: "RFC 5280 s5.3", + Category: MalformedCRL, + }, + + { + ID: ErrInvalidRevocationReason, + Summary: "x509: failed to parse revocation reason: %v", + Field: "tbsCertList.revokedCertificates.crlEntryExtensions.*.CRLReason", + SpecRef: "RFC 5280 s5.3.1", + Category: InvalidASN1Content, + Fatal: true, + }, + { + ID: ErrTrailingRevocationReason, + Summary: "x509: trailing data after revoked certificate reason", + Field: "tbsCertList.revokedCertificates.crlEntryExtensions.*.CRLReason", + SpecRef: "RFC 5280 s5.3.1", + Category: InvalidASN1Content, + Fatal: true, + }, + { + ID: ErrInvalidRevocationInvalidityDate, + Summary: "x509: failed to parse revoked certificate invalidity date: %v", + Field: "tbsCertList.revokedCertificates.crlEntryExtensions.*.InvalidityDate", + SpecRef: "RFC 5280 s5.3.2", + Category: InvalidASN1Content, + Fatal: true, + }, + { + ID: ErrTrailingRevocationInvalidityDate, + Summary: "x509: trailing data after revoked certificate invalidity date", + Field: "tbsCertList.revokedCertificates.crlEntryExtensions.*.InvalidityDate", + SpecRef: "RFC 5280 s5.3.2", + Category: InvalidASN1Content, + Fatal: true, + }, + { + ID: ErrInvalidRevocationIssuer, + Summary: "x509: failed to parse revocation issuer %v", + Field: "tbsCertList.revokedCertificates.crlEntryExtensions.*.CertificateIssuer", + SpecRef: "RFC 5280 s5.3.3", + Category: InvalidASN1Content, + Fatal: true, + }, + { + ID: ErrUnhandledCriticalRevokedCertExtension, + Summary: "x509: unhandled critical extension in revoked certificate: %v", + Field: "tbsCertList.revokedCertificates.crlEntryExtensions.*", + SpecRef: "RFC 5280 s5.3", + SpecText: "If a CRL contains a critical CRL entry extension that the application cannot process, then the application MUST NOT use that CRL to determine the status of any certificates.", + Category: MalformedCRL, + Fatal: true, + }, +} + +func init() { + idToError = make(map[ErrorID]Error, len(errorInfo)) + for _, info := range errorInfo { + idToError[info.ID] = info + } +} + +// NewError builds a new x509.Error based on the template for the given id. +func NewError(id ErrorID, args ...interface{}) Error { + var err Error + if id >= ErrMaxID { + err.ID = id + err.Summary = fmt.Sprintf("Unknown error ID %v: args %+v", id, args) + err.Fatal = true + } else { + err = idToError[id] + err.Summary = fmt.Sprintf(err.Summary, args...) + } + return err +} diff --git a/vendor/github.com/google/certificate-transparency-go/x509/names.go b/vendor/github.com/google/certificate-transparency-go/x509/names.go new file mode 100644 index 0000000000000..3ff0b7d428671 --- /dev/null +++ b/vendor/github.com/google/certificate-transparency-go/x509/names.go @@ -0,0 +1,164 @@ +// Copyright 2009 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package x509 + +import ( + "fmt" + "net" + + "github.com/google/certificate-transparency-go/asn1" + "github.com/google/certificate-transparency-go/x509/pkix" +) + +const ( + // GeneralName tag values from RFC 5280, 4.2.1.6 + tagOtherName = 0 + tagRFC822Name = 1 + tagDNSName = 2 + tagX400Address = 3 + tagDirectoryName = 4 + tagEDIPartyName = 5 + tagURI = 6 + tagIPAddress = 7 + tagRegisteredID = 8 +) + +// OtherName describes a name related to a certificate which is not in one +// of the standard name formats. RFC 5280, 4.2.1.6: +// OtherName ::= SEQUENCE { +// type-id OBJECT IDENTIFIER, +// value [0] EXPLICIT ANY DEFINED BY type-id } +type OtherName struct { + TypeID asn1.ObjectIdentifier + Value asn1.RawValue +} + +// GeneralNames holds a collection of names related to a certificate. +type GeneralNames struct { + DNSNames []string + EmailAddresses []string + DirectoryNames []pkix.Name + URIs []string + IPNets []net.IPNet + RegisteredIDs []asn1.ObjectIdentifier + OtherNames []OtherName +} + +// Len returns the total number of names in a GeneralNames object. +func (gn GeneralNames) Len() int { + return (len(gn.DNSNames) + len(gn.EmailAddresses) + len(gn.DirectoryNames) + + len(gn.URIs) + len(gn.IPNets) + len(gn.RegisteredIDs) + len(gn.OtherNames)) +} + +// Empty indicates whether a GeneralNames object is empty. +func (gn GeneralNames) Empty() bool { + return gn.Len() == 0 +} + +func parseGeneralNames(value []byte, gname *GeneralNames) error { + // RFC 5280, 4.2.1.6 + // GeneralNames ::= SEQUENCE SIZE (1..MAX) OF GeneralName + // + // GeneralName ::= CHOICE { + // otherName [0] OtherName, + // rfc822Name [1] IA5String, + // dNSName [2] IA5String, + // x400Address [3] ORAddress, + // directoryName [4] Name, + // ediPartyName [5] EDIPartyName, + // uniformResourceIdentifier [6] IA5String, + // iPAddress [7] OCTET STRING, + // registeredID [8] OBJECT IDENTIFIER } + var seq asn1.RawValue + var rest []byte + if rest, err := asn1.Unmarshal(value, &seq); err != nil { + return fmt.Errorf("x509: failed to parse GeneralNames: %v", err) + } else if len(rest) != 0 { + return fmt.Errorf("x509: trailing data after GeneralNames") + } + if !seq.IsCompound || seq.Tag != asn1.TagSequence || seq.Class != asn1.ClassUniversal { + return fmt.Errorf("x509: failed to parse GeneralNames sequence, tag %+v", seq) + } + + rest = seq.Bytes + for len(rest) > 0 { + var err error + rest, err = parseGeneralName(rest, gname, false) + if err != nil { + return fmt.Errorf("x509: failed to parse GeneralName: %v", err) + } + } + return nil +} + +func parseGeneralName(data []byte, gname *GeneralNames, withMask bool) ([]byte, error) { + var v asn1.RawValue + var rest []byte + var err error + rest, err = asn1.Unmarshal(data, &v) + if err != nil { + return nil, fmt.Errorf("x509: failed to unmarshal GeneralNames: %v", err) + } + switch v.Tag { + case tagOtherName: + if !v.IsCompound { + return nil, fmt.Errorf("x509: failed to unmarshal GeneralNames.otherName: not compound") + } + var other OtherName + v.FullBytes = append([]byte{}, v.FullBytes...) + v.FullBytes[0] = asn1.TagSequence | 0x20 + _, err = asn1.Unmarshal(v.FullBytes, &other) + if err != nil { + return nil, fmt.Errorf("x509: failed to unmarshal GeneralNames.otherName: %v", err) + } + gname.OtherNames = append(gname.OtherNames, other) + case tagRFC822Name: + gname.EmailAddresses = append(gname.EmailAddresses, string(v.Bytes)) + case tagDNSName: + dns := string(v.Bytes) + gname.DNSNames = append(gname.DNSNames, dns) + case tagDirectoryName: + var rdnSeq pkix.RDNSequence + if _, err := asn1.Unmarshal(v.Bytes, &rdnSeq); err != nil { + return nil, fmt.Errorf("x509: failed to unmarshal GeneralNames.directoryName: %v", err) + } + var dirName pkix.Name + dirName.FillFromRDNSequence(&rdnSeq) + gname.DirectoryNames = append(gname.DirectoryNames, dirName) + case tagURI: + gname.URIs = append(gname.URIs, string(v.Bytes)) + case tagIPAddress: + vlen := len(v.Bytes) + if withMask { + switch vlen { + case (2 * net.IPv4len), (2 * net.IPv6len): + ipNet := net.IPNet{IP: v.Bytes[0 : vlen/2], Mask: v.Bytes[vlen/2:]} + gname.IPNets = append(gname.IPNets, ipNet) + default: + return nil, fmt.Errorf("x509: invalid IP/mask length %d in GeneralNames.iPAddress", vlen) + } + } else { + switch vlen { + case net.IPv4len, net.IPv6len: + ipNet := net.IPNet{IP: v.Bytes} + gname.IPNets = append(gname.IPNets, ipNet) + default: + return nil, fmt.Errorf("x509: invalid IP length %d in GeneralNames.iPAddress", vlen) + } + } + case tagRegisteredID: + var oid asn1.ObjectIdentifier + v.FullBytes = append([]byte{}, v.FullBytes...) + v.FullBytes[0] = asn1.TagOID + _, err = asn1.Unmarshal(v.FullBytes, &oid) + if err != nil { + return nil, fmt.Errorf("x509: failed to unmarshal GeneralNames.registeredID: %v", err) + } + gname.RegisteredIDs = append(gname.RegisteredIDs, oid) + default: + return nil, fmt.Errorf("x509: failed to unmarshal GeneralName: unknown tag %d", v.Tag) + } + return rest, nil +} diff --git a/vendor/github.com/google/certificate-transparency-go/x509/nilref_nil_darwin.go b/vendor/github.com/google/certificate-transparency-go/x509/nilref_nil_darwin.go new file mode 100644 index 0000000000000..d3e8af7729c76 --- /dev/null +++ b/vendor/github.com/google/certificate-transparency-go/x509/nilref_nil_darwin.go @@ -0,0 +1,26 @@ +// Copyright 2018 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// +build cgo,!arm,!arm64,!ios,!go1.10 + +package x509 + +/* +#cgo CFLAGS: -mmacosx-version-min=10.6 -D__MAC_OS_X_VERSION_MAX_ALLOWED=1080 +#cgo LDFLAGS: -framework CoreFoundation -framework Security + +#include +*/ +import "C" + +// For Go versions before 1.10, nil values for Apple's CoreFoundation +// CF*Ref types were represented by nil. See: +// https://github.com/golang/go/commit/b868616b63a8 +func setNilCFRef(v *C.CFDataRef) { + *v = nil +} + +func isNilCFRef(v C.CFDataRef) bool { + return v == nil +} diff --git a/vendor/github.com/google/certificate-transparency-go/x509/nilref_zero_darwin.go b/vendor/github.com/google/certificate-transparency-go/x509/nilref_zero_darwin.go new file mode 100644 index 0000000000000..6d8ad49866e0a --- /dev/null +++ b/vendor/github.com/google/certificate-transparency-go/x509/nilref_zero_darwin.go @@ -0,0 +1,26 @@ +// Copyright 2018 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// +build cgo,!arm,!arm64,!ios,go1.10 + +package x509 + +/* +#cgo CFLAGS: -mmacosx-version-min=10.6 -D__MAC_OS_X_VERSION_MAX_ALLOWED=1080 +#cgo LDFLAGS: -framework CoreFoundation -framework Security + +#include +*/ +import "C" + +// For Go versions >= 1.10, nil values for Apple's CoreFoundation +// CF*Ref types are represented by zero. See: +// https://github.com/golang/go/commit/b868616b63a8 +func setNilCFRef(v *C.CFDataRef) { + *v = 0 +} + +func isNilCFRef(v C.CFDataRef) bool { + return v == 0 +} diff --git a/vendor/github.com/google/certificate-transparency-go/x509/pem_decrypt.go b/vendor/github.com/google/certificate-transparency-go/x509/pem_decrypt.go new file mode 100644 index 0000000000000..0388d63e14953 --- /dev/null +++ b/vendor/github.com/google/certificate-transparency-go/x509/pem_decrypt.go @@ -0,0 +1,240 @@ +// Copyright 2012 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package x509 + +// RFC 1423 describes the encryption of PEM blocks. The algorithm used to +// generate a key from the password was derived by looking at the OpenSSL +// implementation. + +import ( + "crypto/aes" + "crypto/cipher" + "crypto/des" + "crypto/md5" + "encoding/hex" + "encoding/pem" + "errors" + "io" + "strings" +) + +type PEMCipher int + +// Possible values for the EncryptPEMBlock encryption algorithm. +const ( + _ PEMCipher = iota + PEMCipherDES + PEMCipher3DES + PEMCipherAES128 + PEMCipherAES192 + PEMCipherAES256 +) + +// rfc1423Algo holds a method for enciphering a PEM block. +type rfc1423Algo struct { + cipher PEMCipher + name string + cipherFunc func(key []byte) (cipher.Block, error) + keySize int + blockSize int +} + +// rfc1423Algos holds a slice of the possible ways to encrypt a PEM +// block. The ivSize numbers were taken from the OpenSSL source. +var rfc1423Algos = []rfc1423Algo{{ + cipher: PEMCipherDES, + name: "DES-CBC", + cipherFunc: des.NewCipher, + keySize: 8, + blockSize: des.BlockSize, +}, { + cipher: PEMCipher3DES, + name: "DES-EDE3-CBC", + cipherFunc: des.NewTripleDESCipher, + keySize: 24, + blockSize: des.BlockSize, +}, { + cipher: PEMCipherAES128, + name: "AES-128-CBC", + cipherFunc: aes.NewCipher, + keySize: 16, + blockSize: aes.BlockSize, +}, { + cipher: PEMCipherAES192, + name: "AES-192-CBC", + cipherFunc: aes.NewCipher, + keySize: 24, + blockSize: aes.BlockSize, +}, { + cipher: PEMCipherAES256, + name: "AES-256-CBC", + cipherFunc: aes.NewCipher, + keySize: 32, + blockSize: aes.BlockSize, +}, +} + +// deriveKey uses a key derivation function to stretch the password into a key +// with the number of bits our cipher requires. This algorithm was derived from +// the OpenSSL source. +func (c rfc1423Algo) deriveKey(password, salt []byte) []byte { + hash := md5.New() + out := make([]byte, c.keySize) + var digest []byte + + for i := 0; i < len(out); i += len(digest) { + hash.Reset() + hash.Write(digest) + hash.Write(password) + hash.Write(salt) + digest = hash.Sum(digest[:0]) + copy(out[i:], digest) + } + return out +} + +// IsEncryptedPEMBlock returns if the PEM block is password encrypted. +func IsEncryptedPEMBlock(b *pem.Block) bool { + _, ok := b.Headers["DEK-Info"] + return ok +} + +// IncorrectPasswordError is returned when an incorrect password is detected. +var IncorrectPasswordError = errors.New("x509: decryption password incorrect") + +// DecryptPEMBlock takes a password encrypted PEM block and the password used to +// encrypt it and returns a slice of decrypted DER encoded bytes. It inspects +// the DEK-Info header to determine the algorithm used for decryption. If no +// DEK-Info header is present, an error is returned. If an incorrect password +// is detected an IncorrectPasswordError is returned. Because of deficiencies +// in the encrypted-PEM format, it's not always possible to detect an incorrect +// password. In these cases no error will be returned but the decrypted DER +// bytes will be random noise. +func DecryptPEMBlock(b *pem.Block, password []byte) ([]byte, error) { + dek, ok := b.Headers["DEK-Info"] + if !ok { + return nil, errors.New("x509: no DEK-Info header in block") + } + + idx := strings.Index(dek, ",") + if idx == -1 { + return nil, errors.New("x509: malformed DEK-Info header") + } + + mode, hexIV := dek[:idx], dek[idx+1:] + ciph := cipherByName(mode) + if ciph == nil { + return nil, errors.New("x509: unknown encryption mode") + } + iv, err := hex.DecodeString(hexIV) + if err != nil { + return nil, err + } + if len(iv) != ciph.blockSize { + return nil, errors.New("x509: incorrect IV size") + } + + // Based on the OpenSSL implementation. The salt is the first 8 bytes + // of the initialization vector. + key := ciph.deriveKey(password, iv[:8]) + block, err := ciph.cipherFunc(key) + if err != nil { + return nil, err + } + + if len(b.Bytes)%block.BlockSize() != 0 { + return nil, errors.New("x509: encrypted PEM data is not a multiple of the block size") + } + + data := make([]byte, len(b.Bytes)) + dec := cipher.NewCBCDecrypter(block, iv) + dec.CryptBlocks(data, b.Bytes) + + // Blocks are padded using a scheme where the last n bytes of padding are all + // equal to n. It can pad from 1 to blocksize bytes inclusive. See RFC 1423. + // For example: + // [x y z 2 2] + // [x y 7 7 7 7 7 7 7] + // If we detect a bad padding, we assume it is an invalid password. + dlen := len(data) + if dlen == 0 || dlen%ciph.blockSize != 0 { + return nil, errors.New("x509: invalid padding") + } + last := int(data[dlen-1]) + if dlen < last { + return nil, IncorrectPasswordError + } + if last == 0 || last > ciph.blockSize { + return nil, IncorrectPasswordError + } + for _, val := range data[dlen-last:] { + if int(val) != last { + return nil, IncorrectPasswordError + } + } + return data[:dlen-last], nil +} + +// EncryptPEMBlock returns a PEM block of the specified type holding the +// given DER-encoded data encrypted with the specified algorithm and +// password. +func EncryptPEMBlock(rand io.Reader, blockType string, data, password []byte, alg PEMCipher) (*pem.Block, error) { + ciph := cipherByKey(alg) + if ciph == nil { + return nil, errors.New("x509: unknown encryption mode") + } + iv := make([]byte, ciph.blockSize) + if _, err := io.ReadFull(rand, iv); err != nil { + return nil, errors.New("x509: cannot generate IV: " + err.Error()) + } + // The salt is the first 8 bytes of the initialization vector, + // matching the key derivation in DecryptPEMBlock. + key := ciph.deriveKey(password, iv[:8]) + block, err := ciph.cipherFunc(key) + if err != nil { + return nil, err + } + enc := cipher.NewCBCEncrypter(block, iv) + pad := ciph.blockSize - len(data)%ciph.blockSize + encrypted := make([]byte, len(data), len(data)+pad) + // We could save this copy by encrypting all the whole blocks in + // the data separately, but it doesn't seem worth the additional + // code. + copy(encrypted, data) + // See RFC 1423, section 1.1 + for i := 0; i < pad; i++ { + encrypted = append(encrypted, byte(pad)) + } + enc.CryptBlocks(encrypted, encrypted) + + return &pem.Block{ + Type: blockType, + Headers: map[string]string{ + "Proc-Type": "4,ENCRYPTED", + "DEK-Info": ciph.name + "," + hex.EncodeToString(iv), + }, + Bytes: encrypted, + }, nil +} + +func cipherByName(name string) *rfc1423Algo { + for i := range rfc1423Algos { + alg := &rfc1423Algos[i] + if alg.name == name { + return alg + } + } + return nil +} + +func cipherByKey(key PEMCipher) *rfc1423Algo { + for i := range rfc1423Algos { + alg := &rfc1423Algos[i] + if alg.cipher == key { + return alg + } + } + return nil +} diff --git a/vendor/github.com/google/certificate-transparency-go/x509/pkcs1.go b/vendor/github.com/google/certificate-transparency-go/x509/pkcs1.go new file mode 100644 index 0000000000000..e50e1a8517087 --- /dev/null +++ b/vendor/github.com/google/certificate-transparency-go/x509/pkcs1.go @@ -0,0 +1,155 @@ +// Copyright 2011 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package x509 + +import ( + "crypto/rsa" + "errors" + "math/big" + + "github.com/google/certificate-transparency-go/asn1" +) + +// pkcs1PrivateKey is a structure which mirrors the PKCS#1 ASN.1 for an RSA private key. +type pkcs1PrivateKey struct { + Version int + N *big.Int + E int + D *big.Int + P *big.Int + Q *big.Int + // We ignore these values, if present, because rsa will calculate them. + Dp *big.Int `asn1:"optional"` + Dq *big.Int `asn1:"optional"` + Qinv *big.Int `asn1:"optional"` + + AdditionalPrimes []pkcs1AdditionalRSAPrime `asn1:"optional,omitempty"` +} + +type pkcs1AdditionalRSAPrime struct { + Prime *big.Int + + // We ignore these values because rsa will calculate them. + Exp *big.Int + Coeff *big.Int +} + +// pkcs1PublicKey reflects the ASN.1 structure of a PKCS#1 public key. +type pkcs1PublicKey struct { + N *big.Int + E int +} + +// ParsePKCS1PrivateKey returns an RSA private key from its ASN.1 PKCS#1 DER encoded form. +func ParsePKCS1PrivateKey(der []byte) (*rsa.PrivateKey, error) { + var priv pkcs1PrivateKey + rest, err := asn1.Unmarshal(der, &priv) + if len(rest) > 0 { + return nil, asn1.SyntaxError{Msg: "trailing data"} + } + if err != nil { + return nil, err + } + + if priv.Version > 1 { + return nil, errors.New("x509: unsupported private key version") + } + + if priv.N.Sign() <= 0 || priv.D.Sign() <= 0 || priv.P.Sign() <= 0 || priv.Q.Sign() <= 0 { + return nil, errors.New("x509: private key contains zero or negative value") + } + + key := new(rsa.PrivateKey) + key.PublicKey = rsa.PublicKey{ + E: priv.E, + N: priv.N, + } + + key.D = priv.D + key.Primes = make([]*big.Int, 2+len(priv.AdditionalPrimes)) + key.Primes[0] = priv.P + key.Primes[1] = priv.Q + for i, a := range priv.AdditionalPrimes { + if a.Prime.Sign() <= 0 { + return nil, errors.New("x509: private key contains zero or negative prime") + } + key.Primes[i+2] = a.Prime + // We ignore the other two values because rsa will calculate + // them as needed. + } + + err = key.Validate() + if err != nil { + return nil, err + } + key.Precompute() + + return key, nil +} + +// MarshalPKCS1PrivateKey converts a private key to ASN.1 DER encoded form. +func MarshalPKCS1PrivateKey(key *rsa.PrivateKey) []byte { + key.Precompute() + + version := 0 + if len(key.Primes) > 2 { + version = 1 + } + + priv := pkcs1PrivateKey{ + Version: version, + N: key.N, + E: key.PublicKey.E, + D: key.D, + P: key.Primes[0], + Q: key.Primes[1], + Dp: key.Precomputed.Dp, + Dq: key.Precomputed.Dq, + Qinv: key.Precomputed.Qinv, + } + + priv.AdditionalPrimes = make([]pkcs1AdditionalRSAPrime, len(key.Precomputed.CRTValues)) + for i, values := range key.Precomputed.CRTValues { + priv.AdditionalPrimes[i].Prime = key.Primes[2+i] + priv.AdditionalPrimes[i].Exp = values.Exp + priv.AdditionalPrimes[i].Coeff = values.Coeff + } + + b, _ := asn1.Marshal(priv) + return b +} + +// ParsePKCS1PublicKey parses a PKCS#1 public key in ASN.1 DER form. +func ParsePKCS1PublicKey(der []byte) (*rsa.PublicKey, error) { + var pub pkcs1PublicKey + rest, err := asn1.Unmarshal(der, &pub) + if err != nil { + return nil, err + } + if len(rest) > 0 { + return nil, asn1.SyntaxError{Msg: "trailing data"} + } + + if pub.N.Sign() <= 0 || pub.E <= 0 { + return nil, errors.New("x509: public key contains zero or negative value") + } + if pub.E > 1<<31-1 { + return nil, errors.New("x509: public key contains large public exponent") + } + + return &rsa.PublicKey{ + E: pub.E, + N: pub.N, + }, nil +} + +// MarshalPKCS1PublicKey converts an RSA public key to PKCS#1, ASN.1 DER form. +func MarshalPKCS1PublicKey(key *rsa.PublicKey) []byte { + derBytes, _ := asn1.Marshal(pkcs1PublicKey{ + N: key.N, + E: key.E, + }) + return derBytes +} diff --git a/vendor/github.com/google/certificate-transparency-go/x509/pkcs8.go b/vendor/github.com/google/certificate-transparency-go/x509/pkcs8.go new file mode 100644 index 0000000000000..b22338ccdf642 --- /dev/null +++ b/vendor/github.com/google/certificate-transparency-go/x509/pkcs8.go @@ -0,0 +1,102 @@ +// Copyright 2011 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package x509 + +import ( + "crypto/ecdsa" + "crypto/rsa" + "errors" + "fmt" + + "github.com/google/certificate-transparency-go/asn1" + "github.com/google/certificate-transparency-go/x509/pkix" +) + +// pkcs8 reflects an ASN.1, PKCS#8 PrivateKey. See +// ftp://ftp.rsasecurity.com/pub/pkcs/pkcs-8/pkcs-8v1_2.asn +// and RFC 5208. +type pkcs8 struct { + Version int + Algo pkix.AlgorithmIdentifier + PrivateKey []byte + // optional attributes omitted. +} + +// ParsePKCS8PrivateKey parses an unencrypted, PKCS#8 private key. +// See RFC 5208. +func ParsePKCS8PrivateKey(der []byte) (key interface{}, err error) { + var privKey pkcs8 + if _, err := asn1.Unmarshal(der, &privKey); err != nil { + return nil, err + } + switch { + case privKey.Algo.Algorithm.Equal(OIDPublicKeyRSA): + key, err = ParsePKCS1PrivateKey(privKey.PrivateKey) + if err != nil { + return nil, errors.New("x509: failed to parse RSA private key embedded in PKCS#8: " + err.Error()) + } + return key, nil + + case privKey.Algo.Algorithm.Equal(OIDPublicKeyECDSA): + bytes := privKey.Algo.Parameters.FullBytes + namedCurveOID := new(asn1.ObjectIdentifier) + if _, err := asn1.Unmarshal(bytes, namedCurveOID); err != nil { + namedCurveOID = nil + } + key, err = parseECPrivateKey(namedCurveOID, privKey.PrivateKey) + if err != nil { + return nil, errors.New("x509: failed to parse EC private key embedded in PKCS#8: " + err.Error()) + } + return key, nil + + default: + return nil, fmt.Errorf("x509: PKCS#8 wrapping contained private key with unknown algorithm: %v", privKey.Algo.Algorithm) + } +} + +// MarshalPKCS8PrivateKey converts a private key to PKCS#8 encoded form. +// The following key types are supported: *rsa.PrivateKey, *ecdsa.PublicKey. +// Unsupported key types result in an error. +// +// See RFC 5208. +func MarshalPKCS8PrivateKey(key interface{}) ([]byte, error) { + var privKey pkcs8 + + switch k := key.(type) { + case *rsa.PrivateKey: + privKey.Algo = pkix.AlgorithmIdentifier{ + Algorithm: OIDPublicKeyRSA, + Parameters: asn1.NullRawValue, + } + privKey.PrivateKey = MarshalPKCS1PrivateKey(k) + + case *ecdsa.PrivateKey: + oid, ok := OIDFromNamedCurve(k.Curve) + if !ok { + return nil, errors.New("x509: unknown curve while marshalling to PKCS#8") + } + + oidBytes, err := asn1.Marshal(oid) + if err != nil { + return nil, errors.New("x509: failed to marshal curve OID: " + err.Error()) + } + + privKey.Algo = pkix.AlgorithmIdentifier{ + Algorithm: OIDPublicKeyECDSA, + Parameters: asn1.RawValue{ + FullBytes: oidBytes, + }, + } + + if privKey.PrivateKey, err = marshalECPrivateKeyWithOID(k, nil); err != nil { + return nil, errors.New("x509: failed to marshal EC private key while building PKCS#8: " + err.Error()) + } + + default: + return nil, fmt.Errorf("x509: unknown key type while marshalling PKCS#8: %T", key) + } + + return asn1.Marshal(privKey) +} diff --git a/vendor/github.com/google/certificate-transparency-go/x509/pkix/pkix.go b/vendor/github.com/google/certificate-transparency-go/x509/pkix/pkix.go new file mode 100644 index 0000000000000..ccba8761f27d2 --- /dev/null +++ b/vendor/github.com/google/certificate-transparency-go/x509/pkix/pkix.go @@ -0,0 +1,288 @@ +// Copyright 2011 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// Package pkix contains shared, low level structures used for ASN.1 parsing +// and serialization of X.509 certificates, CRL and OCSP. +package pkix + +import ( + // START CT CHANGES + "encoding/hex" + "fmt" + + "github.com/google/certificate-transparency-go/asn1" + // END CT CHANGES + "math/big" + "time" +) + +// AlgorithmIdentifier represents the ASN.1 structure of the same name. See RFC +// 5280, section 4.1.1.2. +type AlgorithmIdentifier struct { + Algorithm asn1.ObjectIdentifier + Parameters asn1.RawValue `asn1:"optional"` +} + +type RDNSequence []RelativeDistinguishedNameSET + +var attributeTypeNames = map[string]string{ + "2.5.4.6": "C", + "2.5.4.10": "O", + "2.5.4.11": "OU", + "2.5.4.3": "CN", + "2.5.4.5": "SERIALNUMBER", + "2.5.4.7": "L", + "2.5.4.8": "ST", + "2.5.4.9": "STREET", + "2.5.4.17": "POSTALCODE", +} + +// String returns a string representation of the sequence r, +// roughly following the RFC 2253 Distinguished Names syntax. +func (r RDNSequence) String() string { + s := "" + for i := 0; i < len(r); i++ { + rdn := r[len(r)-1-i] + if i > 0 { + s += "," + } + for j, tv := range rdn { + if j > 0 { + s += "+" + } + + oidString := tv.Type.String() + typeName, ok := attributeTypeNames[oidString] + if !ok { + derBytes, err := asn1.Marshal(tv.Value) + if err == nil { + s += oidString + "=#" + hex.EncodeToString(derBytes) + continue // No value escaping necessary. + } + + typeName = oidString + } + + valueString := fmt.Sprint(tv.Value) + escaped := make([]rune, 0, len(valueString)) + + for k, c := range valueString { + escape := false + + switch c { + case ',', '+', '"', '\\', '<', '>', ';': + escape = true + + case ' ': + escape = k == 0 || k == len(valueString)-1 + + case '#': + escape = k == 0 + } + + if escape { + escaped = append(escaped, '\\', c) + } else { + escaped = append(escaped, c) + } + } + + s += typeName + "=" + string(escaped) + } + } + + return s +} + +type RelativeDistinguishedNameSET []AttributeTypeAndValue + +// AttributeTypeAndValue mirrors the ASN.1 structure of the same name in +// http://tools.ietf.org/html/rfc5280#section-4.1.2.4 +type AttributeTypeAndValue struct { + Type asn1.ObjectIdentifier + Value interface{} +} + +// AttributeTypeAndValueSET represents a set of ASN.1 sequences of +// AttributeTypeAndValue sequences from RFC 2986 (PKCS #10). +type AttributeTypeAndValueSET struct { + Type asn1.ObjectIdentifier + Value [][]AttributeTypeAndValue `asn1:"set"` +} + +// Extension represents the ASN.1 structure of the same name. See RFC +// 5280, section 4.2. +type Extension struct { + Id asn1.ObjectIdentifier + Critical bool `asn1:"optional"` + Value []byte +} + +// Name represents an X.509 distinguished name. This only includes the common +// elements of a DN. When parsing, all elements are stored in Names and +// non-standard elements can be extracted from there. When marshaling, elements +// in ExtraNames are appended and override other values with the same OID. +type Name struct { + Country, Organization, OrganizationalUnit []string + Locality, Province []string + StreetAddress, PostalCode []string + SerialNumber, CommonName string + + Names []AttributeTypeAndValue + ExtraNames []AttributeTypeAndValue +} + +func (n *Name) FillFromRDNSequence(rdns *RDNSequence) { + for _, rdn := range *rdns { + if len(rdn) == 0 { + continue + } + + for _, atv := range rdn { + n.Names = append(n.Names, atv) + value, ok := atv.Value.(string) + if !ok { + continue + } + + t := atv.Type + if len(t) == 4 && t[0] == OIDAttribute[0] && t[1] == OIDAttribute[1] && t[2] == OIDAttribute[2] { + switch t[3] { + case OIDCommonName[3]: + n.CommonName = value + case OIDSerialNumber[3]: + n.SerialNumber = value + case OIDCountry[3]: + n.Country = append(n.Country, value) + case OIDLocality[3]: + n.Locality = append(n.Locality, value) + case OIDProvince[3]: + n.Province = append(n.Province, value) + case OIDStreetAddress[3]: + n.StreetAddress = append(n.StreetAddress, value) + case OIDOrganization[3]: + n.Organization = append(n.Organization, value) + case OIDOrganizationalUnit[3]: + n.OrganizationalUnit = append(n.OrganizationalUnit, value) + case OIDPostalCode[3]: + n.PostalCode = append(n.PostalCode, value) + } + } + } + } +} + +var ( + OIDAttribute = asn1.ObjectIdentifier{2, 5, 4} + OIDCountry = asn1.ObjectIdentifier{2, 5, 4, 6} + OIDOrganization = asn1.ObjectIdentifier{2, 5, 4, 10} + OIDOrganizationalUnit = asn1.ObjectIdentifier{2, 5, 4, 11} + OIDCommonName = asn1.ObjectIdentifier{2, 5, 4, 3} + OIDSerialNumber = asn1.ObjectIdentifier{2, 5, 4, 5} + OIDLocality = asn1.ObjectIdentifier{2, 5, 4, 7} + OIDProvince = asn1.ObjectIdentifier{2, 5, 4, 8} + OIDStreetAddress = asn1.ObjectIdentifier{2, 5, 4, 9} + OIDPostalCode = asn1.ObjectIdentifier{2, 5, 4, 17} + + OIDPseudonym = asn1.ObjectIdentifier{2, 5, 4, 65} + OIDTitle = asn1.ObjectIdentifier{2, 5, 4, 12} + OIDDnQualifier = asn1.ObjectIdentifier{2, 5, 4, 46} + OIDName = asn1.ObjectIdentifier{2, 5, 4, 41} + OIDSurname = asn1.ObjectIdentifier{2, 5, 4, 4} + OIDGivenName = asn1.ObjectIdentifier{2, 5, 4, 42} + OIDInitials = asn1.ObjectIdentifier{2, 5, 4, 43} + OIDGenerationQualifier = asn1.ObjectIdentifier{2, 5, 4, 44} +) + +// appendRDNs appends a relativeDistinguishedNameSET to the given RDNSequence +// and returns the new value. The relativeDistinguishedNameSET contains an +// attributeTypeAndValue for each of the given values. See RFC 5280, A.1, and +// search for AttributeTypeAndValue. +func (n Name) appendRDNs(in RDNSequence, values []string, oid asn1.ObjectIdentifier) RDNSequence { + if len(values) == 0 || oidInAttributeTypeAndValue(oid, n.ExtraNames) { + return in + } + + s := make([]AttributeTypeAndValue, len(values)) + for i, value := range values { + s[i].Type = oid + s[i].Value = value + } + + return append(in, s) +} + +func (n Name) ToRDNSequence() (ret RDNSequence) { + ret = n.appendRDNs(ret, n.Country, OIDCountry) + ret = n.appendRDNs(ret, n.Province, OIDProvince) + ret = n.appendRDNs(ret, n.Locality, OIDLocality) + ret = n.appendRDNs(ret, n.StreetAddress, OIDStreetAddress) + ret = n.appendRDNs(ret, n.PostalCode, OIDPostalCode) + ret = n.appendRDNs(ret, n.Organization, OIDOrganization) + ret = n.appendRDNs(ret, n.OrganizationalUnit, OIDOrganizationalUnit) + if len(n.CommonName) > 0 { + ret = n.appendRDNs(ret, []string{n.CommonName}, OIDCommonName) + } + if len(n.SerialNumber) > 0 { + ret = n.appendRDNs(ret, []string{n.SerialNumber}, OIDSerialNumber) + } + for _, atv := range n.ExtraNames { + ret = append(ret, []AttributeTypeAndValue{atv}) + } + + return ret +} + +// String returns the string form of n, roughly following +// the RFC 2253 Distinguished Names syntax. +func (n Name) String() string { + return n.ToRDNSequence().String() +} + +// oidInAttributeTypeAndValue returns whether a type with the given OID exists +// in atv. +func oidInAttributeTypeAndValue(oid asn1.ObjectIdentifier, atv []AttributeTypeAndValue) bool { + for _, a := range atv { + if a.Type.Equal(oid) { + return true + } + } + return false +} + +// CertificateList represents the ASN.1 structure of the same name. See RFC +// 5280, section 5.1. Use Certificate.CheckCRLSignature to verify the +// signature. +type CertificateList struct { + TBSCertList TBSCertificateList + SignatureAlgorithm AlgorithmIdentifier + SignatureValue asn1.BitString +} + +// HasExpired reports whether certList should have been updated by now. +func (certList *CertificateList) HasExpired(now time.Time) bool { + return !now.Before(certList.TBSCertList.NextUpdate) +} + +// TBSCertificateList represents the ASN.1 structure TBSCertList. See RFC +// 5280, section 5.1. +type TBSCertificateList struct { + Raw asn1.RawContent + Version int `asn1:"optional,default:0"` + Signature AlgorithmIdentifier + Issuer RDNSequence + ThisUpdate time.Time + NextUpdate time.Time `asn1:"optional"` + RevokedCertificates []RevokedCertificate `asn1:"optional"` + Extensions []Extension `asn1:"tag:0,optional,explicit"` +} + +// RevokedCertificate represents the unnamed ASN.1 structure that makes up the +// revokedCertificates member of the TBSCertList structure. See RFC +// 5280, section 5.1. +type RevokedCertificate struct { + SerialNumber *big.Int + RevocationTime time.Time + Extensions []Extension `asn1:"optional"` +} diff --git a/vendor/github.com/google/certificate-transparency-go/x509/ptr_sysptr_windows.go b/vendor/github.com/google/certificate-transparency-go/x509/ptr_sysptr_windows.go new file mode 100644 index 0000000000000..3543e3042cfde --- /dev/null +++ b/vendor/github.com/google/certificate-transparency-go/x509/ptr_sysptr_windows.go @@ -0,0 +1,20 @@ +// Copyright 2018 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// +build go1.11 + +package x509 + +import ( + "syscall" + "unsafe" +) + +// For Go versions >= 1.11, the ExtraPolicyPara field in +// syscall.CertChainPolicyPara is of type syscall.Pointer. See: +// https://github.com/golang/go/commit/4869ec00e87ef + +func convertToPolicyParaType(p unsafe.Pointer) syscall.Pointer { + return (syscall.Pointer)(p) +} diff --git a/vendor/github.com/google/certificate-transparency-go/x509/ptr_uint_windows.go b/vendor/github.com/google/certificate-transparency-go/x509/ptr_uint_windows.go new file mode 100644 index 0000000000000..3908833a89ded --- /dev/null +++ b/vendor/github.com/google/certificate-transparency-go/x509/ptr_uint_windows.go @@ -0,0 +1,17 @@ +// Copyright 2018 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// +build !go1.11 + +package x509 + +import "unsafe" + +// For Go versions before 1.11, the ExtraPolicyPara field in +// syscall.CertChainPolicyPara was of type uintptr. See: +// https://github.com/golang/go/commit/4869ec00e87ef + +func convertToPolicyParaType(p unsafe.Pointer) uintptr { + return uintptr(p) +} diff --git a/vendor/github.com/google/certificate-transparency-go/x509/revoked.go b/vendor/github.com/google/certificate-transparency-go/x509/revoked.go new file mode 100644 index 0000000000000..fde74b942a741 --- /dev/null +++ b/vendor/github.com/google/certificate-transparency-go/x509/revoked.go @@ -0,0 +1,365 @@ +// Copyright 2017 Google Inc. All Rights Reserved. +// +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package x509 + +import ( + "bytes" + "encoding/pem" + "time" + + "github.com/google/certificate-transparency-go/asn1" + "github.com/google/certificate-transparency-go/x509/pkix" +) + +// OID values for CRL extensions (TBSCertList.Extensions), RFC 5280 s5.2. +var ( + OIDExtensionCRLNumber = asn1.ObjectIdentifier{2, 5, 29, 20} + OIDExtensionDeltaCRLIndicator = asn1.ObjectIdentifier{2, 5, 29, 27} + OIDExtensionIssuingDistributionPoint = asn1.ObjectIdentifier{2, 5, 29, 28} +) + +// OID values for CRL entry extensions (RevokedCertificate.Extensions), RFC 5280 s5.3 +var ( + OIDExtensionCRLReasons = asn1.ObjectIdentifier{2, 5, 29, 21} + OIDExtensionInvalidityDate = asn1.ObjectIdentifier{2, 5, 29, 24} + OIDExtensionCertificateIssuer = asn1.ObjectIdentifier{2, 5, 29, 29} +) + +// RevocationReasonCode represents the reason for a certificate revocation; see RFC 5280 s5.3.1. +type RevocationReasonCode asn1.Enumerated + +// RevocationReasonCode values. +var ( + Unspecified = RevocationReasonCode(0) + KeyCompromise = RevocationReasonCode(1) + CACompromise = RevocationReasonCode(2) + AffiliationChanged = RevocationReasonCode(3) + Superseded = RevocationReasonCode(4) + CessationOfOperation = RevocationReasonCode(5) + CertificateHold = RevocationReasonCode(6) + RemoveFromCRL = RevocationReasonCode(8) + PrivilegeWithdrawn = RevocationReasonCode(9) + AACompromise = RevocationReasonCode(10) +) + +// ReasonFlag holds a bitmask of applicable revocation reasons, from RFC 5280 s4.2.1.13 +type ReasonFlag int + +// ReasonFlag values. +const ( + UnusedFlag ReasonFlag = 1 << iota + KeyCompromiseFlag + CACompromiseFlag + AffiliationChangedFlag + SupersededFlag + CessationOfOperationFlag + CertificateHoldFlag + PrivilegeWithdrawnFlag + AACompromiseFlag +) + +// CertificateList represents the ASN.1 structure of the same name from RFC 5280, s5.1. +// It has the same content as pkix.CertificateList, but the contents include parsed versions +// of any extensions. +type CertificateList struct { + Raw asn1.RawContent + TBSCertList TBSCertList + SignatureAlgorithm pkix.AlgorithmIdentifier + SignatureValue asn1.BitString +} + +// ExpiredAt reports whether now is past the expiry time of certList. +func (certList *CertificateList) ExpiredAt(now time.Time) bool { + return now.After(certList.TBSCertList.NextUpdate) +} + +// Indication of whether extensions need to be critical or non-critical. Extensions that +// can be either are omitted from the map. +var listExtCritical = map[string]bool{ + // From RFC 5280... + OIDExtensionAuthorityKeyId.String(): false, // s5.2.1 + OIDExtensionIssuerAltName.String(): false, // s5.2.2 + OIDExtensionCRLNumber.String(): false, // s5.2.3 + OIDExtensionDeltaCRLIndicator.String(): true, // s5.2.4 + OIDExtensionIssuingDistributionPoint.String(): true, // s5.2.5 + OIDExtensionFreshestCRL.String(): false, // s5.2.6 + OIDExtensionAuthorityInfoAccess.String(): false, // s5.2.7 +} + +var certExtCritical = map[string]bool{ + // From RFC 5280... + OIDExtensionCRLReasons.String(): false, // s5.3.1 + OIDExtensionInvalidityDate.String(): false, // s5.3.2 + OIDExtensionCertificateIssuer.String(): true, // s5.3.3 +} + +// IssuingDistributionPoint represents the ASN.1 structure of the same +// name +type IssuingDistributionPoint struct { + DistributionPoint distributionPointName `asn1:"optional,tag:0"` + OnlyContainsUserCerts bool `asn1:"optional,tag:1"` + OnlyContainsCACerts bool `asn1:"optional,tag:2"` + OnlySomeReasons asn1.BitString `asn1:"optional,tag:3"` + IndirectCRL bool `asn1:"optional,tag:4"` + OnlyContainsAttributeCerts bool `asn1:"optional,tag:5"` +} + +// TBSCertList represents the ASN.1 structure of the same name from RFC +// 5280, section 5.1. It has the same content as pkix.TBSCertificateList +// but the extensions are included in a parsed format. +type TBSCertList struct { + Raw asn1.RawContent + Version int + Signature pkix.AlgorithmIdentifier + Issuer pkix.RDNSequence + ThisUpdate time.Time + NextUpdate time.Time + RevokedCertificates []*RevokedCertificate + Extensions []pkix.Extension + // Cracked out extensions: + AuthorityKeyID []byte + IssuerAltNames GeneralNames + CRLNumber int + BaseCRLNumber int // -1 if no delta CRL present + IssuingDistributionPoint IssuingDistributionPoint + IssuingDPFullNames GeneralNames + FreshestCRLDistributionPoint []string + OCSPServer []string + IssuingCertificateURL []string +} + +// ParseCertificateList parses a CertificateList (e.g. a CRL) from the given +// bytes. It's often the case that PEM encoded CRLs will appear where they +// should be DER encoded, so this function will transparently handle PEM +// encoding as long as there isn't any leading garbage. +func ParseCertificateList(clBytes []byte) (*CertificateList, error) { + if bytes.HasPrefix(clBytes, pemCRLPrefix) { + block, _ := pem.Decode(clBytes) + if block != nil && block.Type == pemType { + clBytes = block.Bytes + } + } + return ParseCertificateListDER(clBytes) +} + +// ParseCertificateListDER parses a DER encoded CertificateList from the given bytes. +// For non-fatal errors, this function returns both an error and a CertificateList +// object. +func ParseCertificateListDER(derBytes []byte) (*CertificateList, error) { + var errs Errors + // First parse the DER into the pkix structures. + pkixList := new(pkix.CertificateList) + if rest, err := asn1.Unmarshal(derBytes, pkixList); err != nil { + errs.AddID(ErrInvalidCertList, err) + return nil, &errs + } else if len(rest) != 0 { + errs.AddID(ErrTrailingCertList) + return nil, &errs + } + + // Transcribe the revoked certs but crack out extensions. + revokedCerts := make([]*RevokedCertificate, len(pkixList.TBSCertList.RevokedCertificates)) + for i, pkixRevoked := range pkixList.TBSCertList.RevokedCertificates { + revokedCerts[i] = parseRevokedCertificate(pkixRevoked, &errs) + if revokedCerts[i] == nil { + return nil, &errs + } + } + + certList := CertificateList{ + Raw: derBytes, + TBSCertList: TBSCertList{ + Raw: pkixList.TBSCertList.Raw, + Version: pkixList.TBSCertList.Version, + Signature: pkixList.TBSCertList.Signature, + Issuer: pkixList.TBSCertList.Issuer, + ThisUpdate: pkixList.TBSCertList.ThisUpdate, + NextUpdate: pkixList.TBSCertList.NextUpdate, + RevokedCertificates: revokedCerts, + Extensions: pkixList.TBSCertList.Extensions, + CRLNumber: -1, + BaseCRLNumber: -1, + }, + SignatureAlgorithm: pkixList.SignatureAlgorithm, + SignatureValue: pkixList.SignatureValue, + } + + // Now crack out extensions. + for _, e := range certList.TBSCertList.Extensions { + if expectCritical, present := listExtCritical[e.Id.String()]; present { + if e.Critical && !expectCritical { + errs.AddID(ErrUnexpectedlyCriticalCertListExtension, e.Id) + } else if !e.Critical && expectCritical { + errs.AddID(ErrUnexpectedlyNonCriticalCertListExtension, e.Id) + } + } + switch { + case e.Id.Equal(OIDExtensionAuthorityKeyId): + // RFC 5280 s5.2.1 + var a authKeyId + if rest, err := asn1.Unmarshal(e.Value, &a); err != nil { + errs.AddID(ErrInvalidCertListAuthKeyID, err) + } else if len(rest) != 0 { + errs.AddID(ErrTrailingCertListAuthKeyID) + } + certList.TBSCertList.AuthorityKeyID = a.Id + case e.Id.Equal(OIDExtensionIssuerAltName): + // RFC 5280 s5.2.2 + if err := parseGeneralNames(e.Value, &certList.TBSCertList.IssuerAltNames); err != nil { + errs.AddID(ErrInvalidCertListIssuerAltName, err) + } + case e.Id.Equal(OIDExtensionCRLNumber): + // RFC 5280 s5.2.3 + if rest, err := asn1.Unmarshal(e.Value, &certList.TBSCertList.CRLNumber); err != nil { + errs.AddID(ErrInvalidCertListCRLNumber, err) + } else if len(rest) != 0 { + errs.AddID(ErrTrailingCertListCRLNumber) + } + if certList.TBSCertList.CRLNumber < 0 { + errs.AddID(ErrNegativeCertListCRLNumber, certList.TBSCertList.CRLNumber) + } + case e.Id.Equal(OIDExtensionDeltaCRLIndicator): + // RFC 5280 s5.2.4 + if rest, err := asn1.Unmarshal(e.Value, &certList.TBSCertList.BaseCRLNumber); err != nil { + errs.AddID(ErrInvalidCertListDeltaCRL, err) + } else if len(rest) != 0 { + errs.AddID(ErrTrailingCertListDeltaCRL) + } + if certList.TBSCertList.BaseCRLNumber < 0 { + errs.AddID(ErrNegativeCertListDeltaCRL, certList.TBSCertList.BaseCRLNumber) + } + case e.Id.Equal(OIDExtensionIssuingDistributionPoint): + parseIssuingDistributionPoint(e.Value, &certList.TBSCertList.IssuingDistributionPoint, &certList.TBSCertList.IssuingDPFullNames, &errs) + case e.Id.Equal(OIDExtensionFreshestCRL): + // RFC 5280 s5.2.6 + if err := parseDistributionPoints(e.Value, &certList.TBSCertList.FreshestCRLDistributionPoint); err != nil { + errs.AddID(ErrInvalidCertListFreshestCRL, err) + return nil, err + } + case e.Id.Equal(OIDExtensionAuthorityInfoAccess): + // RFC 5280 s5.2.7 + var aia []accessDescription + if rest, err := asn1.Unmarshal(e.Value, &aia); err != nil { + errs.AddID(ErrInvalidCertListAuthInfoAccess, err) + } else if len(rest) != 0 { + errs.AddID(ErrTrailingCertListAuthInfoAccess) + } + + for _, v := range aia { + // GeneralName: uniformResourceIdentifier [6] IA5String + if v.Location.Tag != tagURI { + continue + } + switch { + case v.Method.Equal(OIDAuthorityInfoAccessOCSP): + certList.TBSCertList.OCSPServer = append(certList.TBSCertList.OCSPServer, string(v.Location.Bytes)) + case v.Method.Equal(OIDAuthorityInfoAccessIssuers): + certList.TBSCertList.IssuingCertificateURL = append(certList.TBSCertList.IssuingCertificateURL, string(v.Location.Bytes)) + } + // TODO(drysdale): cope with more possibilities + } + default: + if e.Critical { + errs.AddID(ErrUnhandledCriticalCertListExtension, e.Id) + } + } + } + + if errs.Fatal() { + return nil, &errs + } + if errs.Empty() { + return &certList, nil + } + return &certList, &errs +} + +func parseIssuingDistributionPoint(data []byte, idp *IssuingDistributionPoint, name *GeneralNames, errs *Errors) { + // RFC 5280 s5.2.5 + if rest, err := asn1.Unmarshal(data, idp); err != nil { + errs.AddID(ErrInvalidCertListIssuingDP, err) + } else if len(rest) != 0 { + errs.AddID(ErrTrailingCertListIssuingDP) + } + + typeCount := 0 + if idp.OnlyContainsUserCerts { + typeCount++ + } + if idp.OnlyContainsCACerts { + typeCount++ + } + if idp.OnlyContainsAttributeCerts { + typeCount++ + } + if typeCount > 1 { + errs.AddID(ErrCertListIssuingDPMultipleTypes, idp.OnlyContainsUserCerts, idp.OnlyContainsCACerts, idp.OnlyContainsAttributeCerts) + } + for _, fn := range idp.DistributionPoint.FullName { + if _, err := parseGeneralName(fn.FullBytes, name, false); err != nil { + errs.AddID(ErrCertListIssuingDPInvalidFullName, err) + } + } +} + +// RevokedCertificate represents the unnamed ASN.1 structure that makes up the +// revokedCertificates member of the TBSCertList structure from RFC 5280, s5.1. +// It has the same content as pkix.RevokedCertificate but the extensions are +// included in a parsed format. +type RevokedCertificate struct { + pkix.RevokedCertificate + // Cracked out extensions: + RevocationReason RevocationReasonCode + InvalidityDate time.Time + Issuer GeneralNames +} + +func parseRevokedCertificate(pkixRevoked pkix.RevokedCertificate, errs *Errors) *RevokedCertificate { + result := RevokedCertificate{RevokedCertificate: pkixRevoked} + for _, e := range pkixRevoked.Extensions { + if expectCritical, present := certExtCritical[e.Id.String()]; present { + if e.Critical && !expectCritical { + errs.AddID(ErrUnexpectedlyCriticalRevokedCertExtension, e.Id) + } else if !e.Critical && expectCritical { + errs.AddID(ErrUnexpectedlyNonCriticalRevokedCertExtension, e.Id) + } + } + switch { + case e.Id.Equal(OIDExtensionCRLReasons): + // RFC 5280, s5.3.1 + var reason asn1.Enumerated + if rest, err := asn1.Unmarshal(e.Value, &reason); err != nil { + errs.AddID(ErrInvalidRevocationReason, err) + } else if len(rest) != 0 { + errs.AddID(ErrTrailingRevocationReason) + } + result.RevocationReason = RevocationReasonCode(reason) + case e.Id.Equal(OIDExtensionInvalidityDate): + // RFC 5280, s5.3.2 + if rest, err := asn1.Unmarshal(e.Value, &result.InvalidityDate); err != nil { + errs.AddID(ErrInvalidRevocationInvalidityDate, err) + } else if len(rest) != 0 { + errs.AddID(ErrTrailingRevocationInvalidityDate) + } + case e.Id.Equal(OIDExtensionCertificateIssuer): + // RFC 5280, s5.3.3 + if err := parseGeneralNames(e.Value, &result.Issuer); err != nil { + errs.AddID(ErrInvalidRevocationIssuer, err) + } + default: + if e.Critical { + errs.AddID(ErrUnhandledCriticalRevokedCertExtension, e.Id) + } + } + } + return &result +} + +// CheckCertificateListSignature checks that the signature in crl is from c. +func (c *Certificate) CheckCertificateListSignature(crl *CertificateList) error { + algo := SignatureAlgorithmFromAI(crl.SignatureAlgorithm) + return c.CheckSignature(algo, crl.TBSCertList.Raw, crl.SignatureValue.RightAlign()) +} diff --git a/vendor/github.com/google/certificate-transparency-go/x509/root.go b/vendor/github.com/google/certificate-transparency-go/x509/root.go new file mode 100644 index 0000000000000..787d955be47db --- /dev/null +++ b/vendor/github.com/google/certificate-transparency-go/x509/root.go @@ -0,0 +1,22 @@ +// Copyright 2012 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package x509 + +import "sync" + +var ( + once sync.Once + systemRoots *CertPool + systemRootsErr error +) + +func systemRootsPool() *CertPool { + once.Do(initSystemRoots) + return systemRoots +} + +func initSystemRoots() { + systemRoots, systemRootsErr = loadSystemRoots() +} diff --git a/vendor/github.com/google/certificate-transparency-go/x509/root_bsd.go b/vendor/github.com/google/certificate-transparency-go/x509/root_bsd.go new file mode 100644 index 0000000000000..1371933891030 --- /dev/null +++ b/vendor/github.com/google/certificate-transparency-go/x509/root_bsd.go @@ -0,0 +1,15 @@ +// Copyright 2015 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// +build dragonfly freebsd netbsd openbsd + +package x509 + +// Possible certificate files; stop after finding one. +var certFiles = []string{ + "/usr/local/etc/ssl/cert.pem", // FreeBSD + "/etc/ssl/cert.pem", // OpenBSD + "/usr/local/share/certs/ca-root-nss.crt", // DragonFly + "/etc/openssl/certs/ca-certificates.crt", // NetBSD +} diff --git a/vendor/github.com/google/certificate-transparency-go/x509/root_cgo_darwin.go b/vendor/github.com/google/certificate-transparency-go/x509/root_cgo_darwin.go new file mode 100644 index 0000000000000..6c2f21d903cb5 --- /dev/null +++ b/vendor/github.com/google/certificate-transparency-go/x509/root_cgo_darwin.go @@ -0,0 +1,252 @@ +// Copyright 2011 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// +build cgo,!arm,!arm64,!ios + +package x509 + +/* +#cgo CFLAGS: -mmacosx-version-min=10.6 -D__MAC_OS_X_VERSION_MAX_ALLOWED=1080 +#cgo LDFLAGS: -framework CoreFoundation -framework Security + +#include +#include + +#include +#include + +// FetchPEMRootsCTX509_MountainLion is the version of FetchPEMRoots from Go 1.6 +// which still works on OS X 10.8 (Mountain Lion). +// It lacks support for admin & user cert domains. +// See golang.org/issue/16473 +int FetchPEMRootsCTX509_MountainLion(CFDataRef *pemRoots) { + if (pemRoots == NULL) { + return -1; + } + CFArrayRef certs = NULL; + OSStatus err = SecTrustCopyAnchorCertificates(&certs); + if (err != noErr) { + return -1; + } + CFMutableDataRef combinedData = CFDataCreateMutable(kCFAllocatorDefault, 0); + int i, ncerts = CFArrayGetCount(certs); + for (i = 0; i < ncerts; i++) { + CFDataRef data = NULL; + SecCertificateRef cert = (SecCertificateRef)CFArrayGetValueAtIndex(certs, i); + if (cert == NULL) { + continue; + } + // Note: SecKeychainItemExport is deprecated as of 10.7 in favor of SecItemExport. + // Once we support weak imports via cgo we should prefer that, and fall back to this + // for older systems. + err = SecKeychainItemExport(cert, kSecFormatX509Cert, kSecItemPemArmour, NULL, &data); + if (err != noErr) { + continue; + } + if (data != NULL) { + CFDataAppendBytes(combinedData, CFDataGetBytePtr(data), CFDataGetLength(data)); + CFRelease(data); + } + } + CFRelease(certs); + *pemRoots = combinedData; + return 0; +} + +// useOldCodeCTX509 reports whether the running machine is OS X 10.8 Mountain Lion +// or older. We only support Mountain Lion and higher, but we'll at least try our +// best on older machines and continue to use the old code path. +// +// See golang.org/issue/16473 +int useOldCodeCTX509() { + char str[256]; + size_t size = sizeof(str); + memset(str, 0, size); + sysctlbyname("kern.osrelease", str, &size, NULL, 0); + // OS X 10.8 is osrelease "12.*", 10.7 is 11.*, 10.6 is 10.*. + // We never supported things before that. + return memcmp(str, "12.", 3) == 0 || memcmp(str, "11.", 3) == 0 || memcmp(str, "10.", 3) == 0; +} + +// FetchPEMRootsCTX509 fetches the system's list of trusted X.509 root certificates. +// +// On success it returns 0 and fills pemRoots with a CFDataRef that contains the extracted root +// certificates of the system. On failure, the function returns -1. +// Additionally, it fills untrustedPemRoots with certs that must be removed from pemRoots. +// +// Note: The CFDataRef returned in pemRoots and untrustedPemRoots must +// be released (using CFRelease) after we've consumed its content. +int FetchPEMRootsCTX509(CFDataRef *pemRoots, CFDataRef *untrustedPemRoots) { + if (useOldCodeCTX509()) { + return FetchPEMRootsCTX509_MountainLion(pemRoots); + } + + // Get certificates from all domains, not just System, this lets + // the user add CAs to their "login" keychain, and Admins to add + // to the "System" keychain + SecTrustSettingsDomain domains[] = { kSecTrustSettingsDomainSystem, + kSecTrustSettingsDomainAdmin, + kSecTrustSettingsDomainUser }; + + int numDomains = sizeof(domains)/sizeof(SecTrustSettingsDomain); + if (pemRoots == NULL) { + return -1; + } + + // kSecTrustSettingsResult is defined as CFSTR("kSecTrustSettingsResult"), + // but the Go linker's internal linking mode can't handle CFSTR relocations. + // Create our own dynamic string instead and release it below. + CFStringRef policy = CFStringCreateWithCString(NULL, "kSecTrustSettingsResult", kCFStringEncodingUTF8); + + CFMutableDataRef combinedData = CFDataCreateMutable(kCFAllocatorDefault, 0); + CFMutableDataRef combinedUntrustedData = CFDataCreateMutable(kCFAllocatorDefault, 0); + for (int i = 0; i < numDomains; i++) { + CFArrayRef certs = NULL; + OSStatus err = SecTrustSettingsCopyCertificates(domains[i], &certs); + if (err != noErr) { + continue; + } + + CFIndex numCerts = CFArrayGetCount(certs); + for (int j = 0; j < numCerts; j++) { + CFDataRef data = NULL; + CFErrorRef errRef = NULL; + CFArrayRef trustSettings = NULL; + SecCertificateRef cert = (SecCertificateRef)CFArrayGetValueAtIndex(certs, j); + if (cert == NULL) { + continue; + } + // We only want trusted certs. + int untrusted = 0; + int trustAsRoot = 0; + int trustRoot = 0; + if (i == 0) { + trustAsRoot = 1; + } else { + // Certs found in the system domain are always trusted. If the user + // configures "Never Trust" on such a cert, it will also be found in the + // admin or user domain, causing it to be added to untrustedPemRoots. The + // Go code will then clean this up. + + // Trust may be stored in any of the domains. According to Apple's + // SecTrustServer.c, "user trust settings overrule admin trust settings", + // so take the last trust settings array we find. + // Skip the system domain since it is always trusted. + for (int k = i; k < numDomains; k++) { + CFArrayRef domainTrustSettings = NULL; + err = SecTrustSettingsCopyTrustSettings(cert, domains[k], &domainTrustSettings); + if (err == errSecSuccess && domainTrustSettings != NULL) { + if (trustSettings) { + CFRelease(trustSettings); + } + trustSettings = domainTrustSettings; + } + } + if (trustSettings == NULL) { + // "this certificate must be verified to a known trusted certificate"; aka not a root. + continue; + } + for (CFIndex k = 0; k < CFArrayGetCount(trustSettings); k++) { + CFNumberRef cfNum; + CFDictionaryRef tSetting = (CFDictionaryRef)CFArrayGetValueAtIndex(trustSettings, k); + if (CFDictionaryGetValueIfPresent(tSetting, policy, (const void**)&cfNum)){ + SInt32 result = 0; + CFNumberGetValue(cfNum, kCFNumberSInt32Type, &result); + // TODO: The rest of the dictionary specifies conditions for evaluation. + if (result == kSecTrustSettingsResultDeny) { + untrusted = 1; + } else if (result == kSecTrustSettingsResultTrustAsRoot) { + trustAsRoot = 1; + } else if (result == kSecTrustSettingsResultTrustRoot) { + trustRoot = 1; + } + } + } + CFRelease(trustSettings); + } + + if (trustRoot) { + // We only want to add Root CAs, so make sure Subject and Issuer Name match + CFDataRef subjectName = SecCertificateCopyNormalizedSubjectContent(cert, &errRef); + if (errRef != NULL) { + CFRelease(errRef); + continue; + } + CFDataRef issuerName = SecCertificateCopyNormalizedIssuerContent(cert, &errRef); + if (errRef != NULL) { + CFRelease(subjectName); + CFRelease(errRef); + continue; + } + Boolean equal = CFEqual(subjectName, issuerName); + CFRelease(subjectName); + CFRelease(issuerName); + if (!equal) { + continue; + } + } + + // Note: SecKeychainItemExport is deprecated as of 10.7 in favor of SecItemExport. + // Once we support weak imports via cgo we should prefer that, and fall back to this + // for older systems. + err = SecKeychainItemExport(cert, kSecFormatX509Cert, kSecItemPemArmour, NULL, &data); + if (err != noErr) { + continue; + } + + if (data != NULL) { + if (!trustRoot && !trustAsRoot) { + untrusted = 1; + } + CFMutableDataRef appendTo = untrusted ? combinedUntrustedData : combinedData; + CFDataAppendBytes(appendTo, CFDataGetBytePtr(data), CFDataGetLength(data)); + CFRelease(data); + } + } + CFRelease(certs); + } + CFRelease(policy); + *pemRoots = combinedData; + *untrustedPemRoots = combinedUntrustedData; + return 0; +} +*/ +import "C" +import ( + "errors" + "unsafe" +) + +func loadSystemRoots() (*CertPool, error) { + roots := NewCertPool() + + var data C.CFDataRef + setNilCFRef(&data) + var untrustedData C.CFDataRef + setNilCFRef(&untrustedData) + err := C.FetchPEMRootsCTX509(&data, &untrustedData) + if err == -1 { + // TODO: better error message + return nil, errors.New("crypto/x509: failed to load darwin system roots with cgo") + } + + defer C.CFRelease(C.CFTypeRef(data)) + buf := C.GoBytes(unsafe.Pointer(C.CFDataGetBytePtr(data)), C.int(C.CFDataGetLength(data))) + roots.AppendCertsFromPEM(buf) + if isNilCFRef(untrustedData) { + return roots, nil + } + defer C.CFRelease(C.CFTypeRef(untrustedData)) + buf = C.GoBytes(unsafe.Pointer(C.CFDataGetBytePtr(untrustedData)), C.int(C.CFDataGetLength(untrustedData))) + untrustedRoots := NewCertPool() + untrustedRoots.AppendCertsFromPEM(buf) + + trustedRoots := NewCertPool() + for _, c := range roots.certs { + if !untrustedRoots.contains(c) { + trustedRoots.AddCert(c) + } + } + return trustedRoots, nil +} diff --git a/vendor/github.com/google/certificate-transparency-go/x509/root_darwin.go b/vendor/github.com/google/certificate-transparency-go/x509/root_darwin.go new file mode 100644 index 0000000000000..bc35a1cf212e5 --- /dev/null +++ b/vendor/github.com/google/certificate-transparency-go/x509/root_darwin.go @@ -0,0 +1,264 @@ +// Copyright 2013 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +//go:generate go run root_darwin_arm_gen.go -output root_darwin_armx.go + +package x509 + +import ( + "bufio" + "bytes" + "crypto/sha1" + "encoding/pem" + "fmt" + "io" + "io/ioutil" + "os" + "os/exec" + "os/user" + "path/filepath" + "strings" + "sync" +) + +var debugExecDarwinRoots = strings.Contains(os.Getenv("GODEBUG"), "x509roots=1") + +func (c *Certificate) systemVerify(opts *VerifyOptions) (chains [][]*Certificate, err error) { + return nil, nil +} + +// This code is only used when compiling without cgo. +// It is here, instead of root_nocgo_darwin.go, so that tests can check it +// even if the tests are run with cgo enabled. +// The linker will not include these unused functions in binaries built with cgo enabled. + +// execSecurityRoots finds the macOS list of trusted root certificates +// using only command-line tools. This is our fallback path when cgo isn't available. +// +// The strategy is as follows: +// +// 1. Run "security trust-settings-export" and "security +// trust-settings-export -d" to discover the set of certs with some +// user-tweaked trust policy. We're too lazy to parse the XML (at +// least at this stage of Go 1.8) to understand what the trust +// policy actually is. We just learn that there is _some_ policy. +// +// 2. Run "security find-certificate" to dump the list of system root +// CAs in PEM format. +// +// 3. For each dumped cert, conditionally verify it with "security +// verify-cert" if that cert was in the set discovered in Step 1. +// Without the Step 1 optimization, running "security verify-cert" +// 150-200 times takes 3.5 seconds. With the optimization, the +// whole process takes about 180 milliseconds with 1 untrusted root +// CA. (Compared to 110ms in the cgo path) +func execSecurityRoots() (*CertPool, error) { + hasPolicy, err := getCertsWithTrustPolicy() + if err != nil { + return nil, err + } + if debugExecDarwinRoots { + println(fmt.Sprintf("crypto/x509: %d certs have a trust policy", len(hasPolicy))) + } + + args := []string{"find-certificate", "-a", "-p", + "/System/Library/Keychains/SystemRootCertificates.keychain", + "/Library/Keychains/System.keychain", + } + + u, err := user.Current() + if err != nil { + if debugExecDarwinRoots { + println(fmt.Sprintf("crypto/x509: get current user: %v", err)) + } + } else { + args = append(args, + filepath.Join(u.HomeDir, "/Library/Keychains/login.keychain"), + + // Fresh installs of Sierra use a slightly different path for the login keychain + filepath.Join(u.HomeDir, "/Library/Keychains/login.keychain-db"), + ) + } + + cmd := exec.Command("/usr/bin/security", args...) + data, err := cmd.Output() + if err != nil { + return nil, err + } + + var ( + mu sync.Mutex + roots = NewCertPool() + numVerified int // number of execs of 'security verify-cert', for debug stats + ) + + blockCh := make(chan *pem.Block) + var wg sync.WaitGroup + + // Using 4 goroutines to pipe into verify-cert seems to be + // about the best we can do. The verify-cert binary seems to + // just RPC to another server with coarse locking anyway, so + // running 16 at a time for instance doesn't help at all. Due + // to the "if hasPolicy" check below, though, we will rarely + // (or never) call verify-cert on stock macOS systems, though. + // The hope is that we only call verify-cert when the user has + // tweaked their trust policy. These 4 goroutines are only + // defensive in the pathological case of many trust edits. + for i := 0; i < 4; i++ { + wg.Add(1) + go func() { + defer wg.Done() + for block := range blockCh { + cert, err := ParseCertificate(block.Bytes) + if err != nil { + continue + } + sha1CapHex := fmt.Sprintf("%X", sha1.Sum(block.Bytes)) + + valid := true + verifyChecks := 0 + if hasPolicy[sha1CapHex] { + verifyChecks++ + if !verifyCertWithSystem(block, cert) { + valid = false + } + } + + mu.Lock() + numVerified += verifyChecks + if valid { + roots.AddCert(cert) + } + mu.Unlock() + } + }() + } + for len(data) > 0 { + var block *pem.Block + block, data = pem.Decode(data) + if block == nil { + break + } + if block.Type != "CERTIFICATE" || len(block.Headers) != 0 { + continue + } + blockCh <- block + } + close(blockCh) + wg.Wait() + + if debugExecDarwinRoots { + mu.Lock() + defer mu.Unlock() + println(fmt.Sprintf("crypto/x509: ran security verify-cert %d times", numVerified)) + } + + return roots, nil +} + +func verifyCertWithSystem(block *pem.Block, cert *Certificate) bool { + data := pem.EncodeToMemory(block) + + f, err := ioutil.TempFile("", "cert") + if err != nil { + fmt.Fprintf(os.Stderr, "can't create temporary file for cert: %v", err) + return false + } + defer os.Remove(f.Name()) + if _, err := f.Write(data); err != nil { + fmt.Fprintf(os.Stderr, "can't write temporary file for cert: %v", err) + return false + } + if err := f.Close(); err != nil { + fmt.Fprintf(os.Stderr, "can't write temporary file for cert: %v", err) + return false + } + cmd := exec.Command("/usr/bin/security", "verify-cert", "-c", f.Name(), "-l", "-L") + var stderr bytes.Buffer + if debugExecDarwinRoots { + cmd.Stderr = &stderr + } + if err := cmd.Run(); err != nil { + if debugExecDarwinRoots { + println(fmt.Sprintf("crypto/x509: verify-cert rejected %s: %q", cert.Subject.CommonName, bytes.TrimSpace(stderr.Bytes()))) + } + return false + } + if debugExecDarwinRoots { + println(fmt.Sprintf("crypto/x509: verify-cert approved %s", cert.Subject.CommonName)) + } + return true +} + +// getCertsWithTrustPolicy returns the set of certs that have a +// possibly-altered trust policy. The keys of the map are capitalized +// sha1 hex of the raw cert. +// They are the certs that should be checked against `security +// verify-cert` to see whether the user altered the default trust +// settings. This code is only used for cgo-disabled builds. +func getCertsWithTrustPolicy() (map[string]bool, error) { + set := map[string]bool{} + td, err := ioutil.TempDir("", "x509trustpolicy") + if err != nil { + return nil, err + } + defer os.RemoveAll(td) + run := func(file string, args ...string) error { + file = filepath.Join(td, file) + args = append(args, file) + cmd := exec.Command("/usr/bin/security", args...) + var stderr bytes.Buffer + cmd.Stderr = &stderr + if err := cmd.Run(); err != nil { + // If there are no trust settings, the + // `security trust-settings-export` command + // fails with: + // exit status 1, SecTrustSettingsCreateExternalRepresentation: No Trust Settings were found. + // Rather than match on English substrings that are probably + // localized on macOS, just interpret any failure to mean that + // there are no trust settings. + if debugExecDarwinRoots { + println(fmt.Sprintf("crypto/x509: exec %q: %v, %s", cmd.Args, err, stderr.Bytes())) + } + return nil + } + + f, err := os.Open(file) + if err != nil { + return err + } + defer f.Close() + + // Gather all the runs of 40 capitalized hex characters. + br := bufio.NewReader(f) + var hexBuf bytes.Buffer + for { + b, err := br.ReadByte() + isHex := ('A' <= b && b <= 'F') || ('0' <= b && b <= '9') + if isHex { + hexBuf.WriteByte(b) + } else { + if hexBuf.Len() == 40 { + set[hexBuf.String()] = true + } + hexBuf.Reset() + } + if err == io.EOF { + break + } + if err != nil { + return err + } + } + + return nil + } + if err := run("user", "trust-settings-export"); err != nil { + return nil, fmt.Errorf("dump-trust-settings (user): %v", err) + } + if err := run("admin", "trust-settings-export", "-d"); err != nil { + return nil, fmt.Errorf("dump-trust-settings (admin): %v", err) + } + return set, nil +} diff --git a/vendor/github.com/google/certificate-transparency-go/x509/root_darwin_armx.go b/vendor/github.com/google/certificate-transparency-go/x509/root_darwin_armx.go new file mode 100644 index 0000000000000..fcbbd6b170150 --- /dev/null +++ b/vendor/github.com/google/certificate-transparency-go/x509/root_darwin_armx.go @@ -0,0 +1,4313 @@ +// Code generated by root_darwin_arm_gen --output root_darwin_armx.go; DO NOT EDIT. + +// Copyright 2015 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// +build cgo +// +build darwin +// +build arm arm64 ios + +package x509 + +func loadSystemRoots() (*CertPool, error) { + p := NewCertPool() + p.AppendCertsFromPEM([]byte(systemRootsPEM)) + return p, nil +} + +const systemRootsPEM = ` +-----BEGIN CERTIFICATE----- +MIIEMjCCAxqgAwIBAgIBATANBgkqhkiG9w0BAQUFADB7MQswCQYDVQQGEwJHQjEb +MBkGA1UECAwSR3JlYXRlciBNYW5jaGVzdGVyMRAwDgYDVQQHDAdTYWxmb3JkMRow +GAYDVQQKDBFDb21vZG8gQ0EgTGltaXRlZDEhMB8GA1UEAwwYQUFBIENlcnRpZmlj +YXRlIFNlcnZpY2VzMB4XDTA0MDEwMTAwMDAwMFoXDTI4MTIzMTIzNTk1OVowezEL +MAkGA1UEBhMCR0IxGzAZBgNVBAgMEkdyZWF0ZXIgTWFuY2hlc3RlcjEQMA4GA1UE +BwwHU2FsZm9yZDEaMBgGA1UECgwRQ29tb2RvIENBIExpbWl0ZWQxITAfBgNVBAMM +GEFBQSBDZXJ0aWZpY2F0ZSBTZXJ2aWNlczCCASIwDQYJKoZIhvcNAQEBBQADggEP +ADCCAQoCggEBAL5AnfRu4ep2hxxNRUSOvkbIgwadwSr+GB+O5AL686tdUIoWMQua +BtDFcCLNSS1UY8y2bmhGC1Pqy0wkwLxyTurxFa70VJoSCsN6sjNg4tqJVfMiWPPe +3M/vg4aijJRPn2jymJBGhCfHdr/jzDUsi14HZGWCwEiwqJH5YZ92IFCokcdmtet4 +YgNW8IoaE+oxox6gmf049vYnMlhvB/VruPsUK6+3qszWY19zjNoFmag4qMsXeDZR +rOme9Hg6jc8P2ULimAyrL58OAd7vn5lJ8S3frHRNG5i1R8XlKdH5kBjHYpy+g8cm +ez6KJcfA3Z3mNWgQIJ2P2N7Sw4ScDV7oL8kCAwEAAaOBwDCBvTAdBgNVHQ4EFgQU +oBEKIz6W8Qfs4q8p74Klf9AwpLQwDgYDVR0PAQH/BAQDAgEGMA8GA1UdEwEB/wQF +MAMBAf8wewYDVR0fBHQwcjA4oDagNIYyaHR0cDovL2NybC5jb21vZG9jYS5jb20v +QUFBQ2VydGlmaWNhdGVTZXJ2aWNlcy5jcmwwNqA0oDKGMGh0dHA6Ly9jcmwuY29t +b2RvLm5ldC9BQUFDZXJ0aWZpY2F0ZVNlcnZpY2VzLmNybDANBgkqhkiG9w0BAQUF +AAOCAQEACFb8AvCb6P+k+tZ7xkSAzk/ExfYAWMymtrwUSWgEdujm7l3sAg9g1o1Q +GE8mTgHj5rCl7r+8dFRBv/38ErjHT1r0iWAFf2C3BUrz9vHCv8S5dIa2LX1rzNLz +Rt0vxuBqw8M0Ayx9lt1awg6nCpnBBYurDC/zXDrPbDdVCYfeU0BsWO/8tqtlbgT2 +G9w84FoVxp7Z8VlIMCFlA2zs6SFz7JsDoeA3raAVGI/6ugLOpyypEBMs1OUIJqsi +l2D4kF501KKaU73yqWjgom7C12yxow+ev+to51byrvLjKzg6CYG1a4XXvi3tPxq3 +smPi9WIsgtRqAEFQ8TmDn5XpNpaYbg== +-----END CERTIFICATE----- +-----BEGIN CERTIFICATE----- +MIIFuzCCA6OgAwIBAgIIVwoRl0LE48wwDQYJKoZIhvcNAQELBQAwazELMAkGA1UE +BhMCSVQxDjAMBgNVBAcMBU1pbGFuMSMwIQYDVQQKDBpBY3RhbGlzIFMucC5BLi8w +MzM1ODUyMDk2NzEnMCUGA1UEAwweQWN0YWxpcyBBdXRoZW50aWNhdGlvbiBSb290 +IENBMB4XDTExMDkyMjExMjIwMloXDTMwMDkyMjExMjIwMlowazELMAkGA1UEBhMC +SVQxDjAMBgNVBAcMBU1pbGFuMSMwIQYDVQQKDBpBY3RhbGlzIFMucC5BLi8wMzM1 +ODUyMDk2NzEnMCUGA1UEAwweQWN0YWxpcyBBdXRoZW50aWNhdGlvbiBSb290IENB +MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAp8bEpSmkLO/lGMWwUKNv +UTufClrJwkg4CsIcoBh/kbWHuUA/3R1oHwiD1S0eiKD4j1aPbZkCkpAW1V8IbInX +4ay8IMKx4INRimlNAJZaby/ARH6jDuSRzVju3PvHHkVH3Se5CAGfpiEd9UEtL0z9 +KK3giq0itFZljoZUj5NDKd45RnijMCO6zfB9E1fAXdKDa0hMxKufgFpbOr3JpyI/ +gCczWw63igxdBzcIy2zSekciRDXFzMwujt0q7bd9Zg1fYVEiVRvjRuPjPdA1Yprb +rxTIW6HMiRvhMCb8oJsfgadHHwTrozmSBp+Z07/T6k9QnBn+locePGX2oxgkg4YQ +51Q+qDp2JE+BIcXjDwL4k5RHILv+1A7TaLndxHqEguNTVHnd25zS8gebLra8Pu2F +be8lEfKXGkJh90qX6IuxEAf6ZYGyojnP9zz/GPvG8VqLWeICrHuS0E4UT1lF9gxe +KF+w6D9Fz8+vm2/7hNN3WpVvrJSEnu68wEqPSpP4RCHiMUVhUE4Q2OM1fEwZtN4F 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+38eMpSe2OAtp87ZOqCwuIR1cRN8hXX4jdP5efrRKt6atH67gBhbim1vZZ3RrXYCP +KZ2GG9mcDZhtdhAoWORlsH9KmHmf4MMxfoArtYzAQDsRhtDLooY2YKTVMIJt2W7Q +DxIEM5dfT2Fa8OT5kavnHTu86M/0ay00fOJIYRyO82FEzG+gSqmUsE3a56k0enI4 +qEHMPJQRfevIpoy3hsvKMzvZPTeL+3o+hiznc9cKV6xkmxnr9A8ECIqsAxcZZPRa +JSKNNCyy9mgdEm3Tih4U2sSPpuIjhdV6Db1q4Ons7Be7QhtnqiXtRYMh/MHJfNVi +PvryxS3T/dRlAgMBAAGjgZ8wgZwwEwYJKwYBBAGCNxQCBAYeBABDAEEwCwYDVR0P +BAQDAgGGMA8GA1UdEwEB/wQFMAMBAf8wHQYDVR0OBBYEFMZPoj0GY4QJnM5i5ASs +jVy16bYbMDYGA1UdHwQvMC0wK6ApoCeGJWh0dHA6Ly9jcmwueHJhbXBzZWN1cml0 +eS5jb20vWEdDQS5jcmwwEAYJKwYBBAGCNxUBBAMCAQEwDQYJKoZIhvcNAQEFBQAD +ggEBAJEVOQMBG2f7Shz5CmBbodpNl2L5JFMn14JkTpAuw0kbK5rc/Kh4ZzXxHfAR +vbdI4xD2Dd8/0sm2qlWkSLoC295ZLhVbO50WfUfXN+pfTXYSNrsf16GBBEYgoyxt +qZ4Bfj8pzgCT3/3JknOJiWSe5yvkHJEs0rnOfc5vMZnT5r7SHpDwCRR5XCOrTdLa +IR9NmXmd4c8nnxCbHIgNsIpkQTG4DmyQJKSbXHGPurt+HBvbaoAPIbzp26a3QPSy +i6mx5O+aGtA9aZnuqCij4Tyz8LIRnM98QObd50N9otg6tamN8jSZxNQQ4Qb9CYQQ +O+7ETPTsJ3xCwnR8gooJybQDJbw= +-----END CERTIFICATE----- +` diff --git a/vendor/github.com/google/certificate-transparency-go/x509/root_linux.go b/vendor/github.com/google/certificate-transparency-go/x509/root_linux.go new file mode 100644 index 0000000000000..aa1785e4c6375 --- /dev/null +++ b/vendor/github.com/google/certificate-transparency-go/x509/root_linux.go @@ -0,0 +1,14 @@ +// Copyright 2015 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package x509 + +// Possible certificate files; stop after finding one. +var certFiles = []string{ + "/etc/ssl/certs/ca-certificates.crt", // Debian/Ubuntu/Gentoo etc. + "/etc/pki/tls/certs/ca-bundle.crt", // Fedora/RHEL 6 + "/etc/ssl/ca-bundle.pem", // OpenSUSE + "/etc/pki/tls/cacert.pem", // OpenELEC + "/etc/pki/ca-trust/extracted/pem/tls-ca-bundle.pem", // CentOS/RHEL 7 +} diff --git a/vendor/github.com/google/certificate-transparency-go/x509/root_nacl.go b/vendor/github.com/google/certificate-transparency-go/x509/root_nacl.go new file mode 100644 index 0000000000000..4413f64738a7f --- /dev/null +++ b/vendor/github.com/google/certificate-transparency-go/x509/root_nacl.go @@ -0,0 +1,8 @@ +// Copyright 2015 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package x509 + +// Possible certificate files; stop after finding one. +var certFiles = []string{} diff --git a/vendor/github.com/google/certificate-transparency-go/x509/root_nocgo_darwin.go b/vendor/github.com/google/certificate-transparency-go/x509/root_nocgo_darwin.go new file mode 100644 index 0000000000000..2ac4666aff65b --- /dev/null +++ b/vendor/github.com/google/certificate-transparency-go/x509/root_nocgo_darwin.go @@ -0,0 +1,11 @@ +// Copyright 2013 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// +build !cgo + +package x509 + +func loadSystemRoots() (*CertPool, error) { + return execSecurityRoots() +} diff --git a/vendor/github.com/google/certificate-transparency-go/x509/root_plan9.go b/vendor/github.com/google/certificate-transparency-go/x509/root_plan9.go new file mode 100644 index 0000000000000..ebeb7dfccd86c --- /dev/null +++ b/vendor/github.com/google/certificate-transparency-go/x509/root_plan9.go @@ -0,0 +1,37 @@ +// Copyright 2012 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// +build plan9 + +package x509 + +import ( + "io/ioutil" + "os" +) + +// Possible certificate files; stop after finding one. +var certFiles = []string{ + "/sys/lib/tls/ca.pem", +} + +func (c *Certificate) systemVerify(opts *VerifyOptions) (chains [][]*Certificate, err error) { + return nil, nil +} + +func loadSystemRoots() (*CertPool, error) { + roots := NewCertPool() + var bestErr error + for _, file := range certFiles { + data, err := ioutil.ReadFile(file) + if err == nil { + roots.AppendCertsFromPEM(data) + return roots, nil + } + if bestErr == nil || (os.IsNotExist(bestErr) && !os.IsNotExist(err)) { + bestErr = err + } + } + return nil, bestErr +} diff --git a/vendor/github.com/google/certificate-transparency-go/x509/root_solaris.go b/vendor/github.com/google/certificate-transparency-go/x509/root_solaris.go new file mode 100644 index 0000000000000..e6d4e61399475 --- /dev/null +++ b/vendor/github.com/google/certificate-transparency-go/x509/root_solaris.go @@ -0,0 +1,12 @@ +// Copyright 2015 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package x509 + +// Possible certificate files; stop after finding one. +var certFiles = []string{ + "/etc/certs/ca-certificates.crt", // Solaris 11.2+ + "/etc/ssl/certs/ca-certificates.crt", // Joyent SmartOS + "/etc/ssl/cacert.pem", // OmniOS +} diff --git a/vendor/github.com/google/certificate-transparency-go/x509/root_unix.go b/vendor/github.com/google/certificate-transparency-go/x509/root_unix.go new file mode 100644 index 0000000000000..65b5a5fdbccb3 --- /dev/null +++ b/vendor/github.com/google/certificate-transparency-go/x509/root_unix.go @@ -0,0 +1,88 @@ +// Copyright 2011 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// +build dragonfly freebsd linux nacl netbsd openbsd solaris + +package x509 + +import ( + "io/ioutil" + "os" +) + +// Possible directories with certificate files; stop after successfully +// reading at least one file from a directory. +var certDirectories = []string{ + "/etc/ssl/certs", // SLES10/SLES11, https://golang.org/issue/12139 + "/system/etc/security/cacerts", // Android + "/usr/local/share/certs", // FreeBSD + "/etc/pki/tls/certs", // Fedora/RHEL + "/etc/openssl/certs", // NetBSD +} + +const ( + // certFileEnv is the environment variable which identifies where to locate + // the SSL certificate file. If set this overrides the system default. + certFileEnv = "SSL_CERT_FILE" + + // certDirEnv is the environment variable which identifies which directory + // to check for SSL certificate files. If set this overrides the system default. + certDirEnv = "SSL_CERT_DIR" +) + +func (c *Certificate) systemVerify(opts *VerifyOptions) (chains [][]*Certificate, err error) { + return nil, nil +} + +func loadSystemRoots() (*CertPool, error) { + roots := NewCertPool() + + files := certFiles + if f := os.Getenv(certFileEnv); f != "" { + files = []string{f} + } + + var firstErr error + for _, file := range files { + data, err := ioutil.ReadFile(file) + if err == nil { + roots.AppendCertsFromPEM(data) + break + } + if firstErr == nil && !os.IsNotExist(err) { + firstErr = err + } + } + + dirs := certDirectories + if d := os.Getenv(certDirEnv); d != "" { + dirs = []string{d} + } + + for _, directory := range dirs { + fis, err := ioutil.ReadDir(directory) + if err != nil { + if firstErr == nil && !os.IsNotExist(err) { + firstErr = err + } + continue + } + rootsAdded := false + for _, fi := range fis { + data, err := ioutil.ReadFile(directory + "/" + fi.Name()) + if err == nil && roots.AppendCertsFromPEM(data) { + rootsAdded = true + } + } + if rootsAdded { + return roots, nil + } + } + + if len(roots.certs) > 0 { + return roots, nil + } + + return nil, firstErr +} diff --git a/vendor/github.com/google/certificate-transparency-go/x509/root_windows.go b/vendor/github.com/google/certificate-transparency-go/x509/root_windows.go new file mode 100644 index 0000000000000..304ad3a679f02 --- /dev/null +++ b/vendor/github.com/google/certificate-transparency-go/x509/root_windows.go @@ -0,0 +1,266 @@ +// Copyright 2012 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package x509 + +import ( + "errors" + "syscall" + "unsafe" +) + +// Creates a new *syscall.CertContext representing the leaf certificate in an in-memory +// certificate store containing itself and all of the intermediate certificates specified +// in the opts.Intermediates CertPool. +// +// A pointer to the in-memory store is available in the returned CertContext's Store field. +// The store is automatically freed when the CertContext is freed using +// syscall.CertFreeCertificateContext. +func createStoreContext(leaf *Certificate, opts *VerifyOptions) (*syscall.CertContext, error) { + var storeCtx *syscall.CertContext + + leafCtx, err := syscall.CertCreateCertificateContext(syscall.X509_ASN_ENCODING|syscall.PKCS_7_ASN_ENCODING, &leaf.Raw[0], uint32(len(leaf.Raw))) + if err != nil { + return nil, err + } + defer syscall.CertFreeCertificateContext(leafCtx) + + handle, err := syscall.CertOpenStore(syscall.CERT_STORE_PROV_MEMORY, 0, 0, syscall.CERT_STORE_DEFER_CLOSE_UNTIL_LAST_FREE_FLAG, 0) + if err != nil { + return nil, err + } + defer syscall.CertCloseStore(handle, 0) + + err = syscall.CertAddCertificateContextToStore(handle, leafCtx, syscall.CERT_STORE_ADD_ALWAYS, &storeCtx) + if err != nil { + return nil, err + } + + if opts.Intermediates != nil { + for _, intermediate := range opts.Intermediates.certs { + ctx, err := syscall.CertCreateCertificateContext(syscall.X509_ASN_ENCODING|syscall.PKCS_7_ASN_ENCODING, &intermediate.Raw[0], uint32(len(intermediate.Raw))) + if err != nil { + return nil, err + } + + err = syscall.CertAddCertificateContextToStore(handle, ctx, syscall.CERT_STORE_ADD_ALWAYS, nil) + syscall.CertFreeCertificateContext(ctx) + if err != nil { + return nil, err + } + } + } + + return storeCtx, nil +} + +// extractSimpleChain extracts the final certificate chain from a CertSimpleChain. +func extractSimpleChain(simpleChain **syscall.CertSimpleChain, count int) (chain []*Certificate, err error) { + if simpleChain == nil || count == 0 { + return nil, errors.New("x509: invalid simple chain") + } + + simpleChains := (*[1 << 20]*syscall.CertSimpleChain)(unsafe.Pointer(simpleChain))[:] + lastChain := simpleChains[count-1] + elements := (*[1 << 20]*syscall.CertChainElement)(unsafe.Pointer(lastChain.Elements))[:] + for i := 0; i < int(lastChain.NumElements); i++ { + // Copy the buf, since ParseCertificate does not create its own copy. + cert := elements[i].CertContext + encodedCert := (*[1 << 20]byte)(unsafe.Pointer(cert.EncodedCert))[:] + buf := make([]byte, cert.Length) + copy(buf, encodedCert[:]) + parsedCert, err := ParseCertificate(buf) + if err != nil { + return nil, err + } + chain = append(chain, parsedCert) + } + + return chain, nil +} + +// checkChainTrustStatus checks the trust status of the certificate chain, translating +// any errors it finds into Go errors in the process. +func checkChainTrustStatus(c *Certificate, chainCtx *syscall.CertChainContext) error { + if chainCtx.TrustStatus.ErrorStatus != syscall.CERT_TRUST_NO_ERROR { + status := chainCtx.TrustStatus.ErrorStatus + switch status { + case syscall.CERT_TRUST_IS_NOT_TIME_VALID: + return CertificateInvalidError{c, Expired, ""} + default: + return UnknownAuthorityError{c, nil, nil} + } + } + return nil +} + +// checkChainSSLServerPolicy checks that the certificate chain in chainCtx is valid for +// use as a certificate chain for a SSL/TLS server. +func checkChainSSLServerPolicy(c *Certificate, chainCtx *syscall.CertChainContext, opts *VerifyOptions) error { + servernamep, err := syscall.UTF16PtrFromString(opts.DNSName) + if err != nil { + return err + } + sslPara := &syscall.SSLExtraCertChainPolicyPara{ + AuthType: syscall.AUTHTYPE_SERVER, + ServerName: servernamep, + } + sslPara.Size = uint32(unsafe.Sizeof(*sslPara)) + + para := &syscall.CertChainPolicyPara{ + ExtraPolicyPara: convertToPolicyParaType(unsafe.Pointer(sslPara)), + } + para.Size = uint32(unsafe.Sizeof(*para)) + + status := syscall.CertChainPolicyStatus{} + err = syscall.CertVerifyCertificateChainPolicy(syscall.CERT_CHAIN_POLICY_SSL, chainCtx, para, &status) + if err != nil { + return err + } + + // TODO(mkrautz): use the lChainIndex and lElementIndex fields + // of the CertChainPolicyStatus to provide proper context, instead + // using c. + if status.Error != 0 { + switch status.Error { + case syscall.CERT_E_EXPIRED: + return CertificateInvalidError{c, Expired, ""} + case syscall.CERT_E_CN_NO_MATCH: + return HostnameError{c, opts.DNSName} + case syscall.CERT_E_UNTRUSTEDROOT: + return UnknownAuthorityError{c, nil, nil} + default: + return UnknownAuthorityError{c, nil, nil} + } + } + + return nil +} + +// systemVerify is like Verify, except that it uses CryptoAPI calls +// to build certificate chains and verify them. +func (c *Certificate) systemVerify(opts *VerifyOptions) (chains [][]*Certificate, err error) { + hasDNSName := opts != nil && len(opts.DNSName) > 0 + + storeCtx, err := createStoreContext(c, opts) + if err != nil { + return nil, err + } + defer syscall.CertFreeCertificateContext(storeCtx) + + para := new(syscall.CertChainPara) + para.Size = uint32(unsafe.Sizeof(*para)) + + // If there's a DNSName set in opts, assume we're verifying + // a certificate from a TLS server. + if hasDNSName { + oids := []*byte{ + &syscall.OID_PKIX_KP_SERVER_AUTH[0], + // Both IE and Chrome allow certificates with + // Server Gated Crypto as well. Some certificates + // in the wild require them. + &syscall.OID_SERVER_GATED_CRYPTO[0], + &syscall.OID_SGC_NETSCAPE[0], + } + para.RequestedUsage.Type = syscall.USAGE_MATCH_TYPE_OR + para.RequestedUsage.Usage.Length = uint32(len(oids)) + para.RequestedUsage.Usage.UsageIdentifiers = &oids[0] + } else { + para.RequestedUsage.Type = syscall.USAGE_MATCH_TYPE_AND + para.RequestedUsage.Usage.Length = 0 + para.RequestedUsage.Usage.UsageIdentifiers = nil + } + + var verifyTime *syscall.Filetime + if opts != nil && !opts.CurrentTime.IsZero() { + ft := syscall.NsecToFiletime(opts.CurrentTime.UnixNano()) + verifyTime = &ft + } + + // CertGetCertificateChain will traverse Windows's root stores + // in an attempt to build a verified certificate chain. Once + // it has found a verified chain, it stops. MSDN docs on + // CERT_CHAIN_CONTEXT: + // + // When a CERT_CHAIN_CONTEXT is built, the first simple chain + // begins with an end certificate and ends with a self-signed + // certificate. If that self-signed certificate is not a root + // or otherwise trusted certificate, an attempt is made to + // build a new chain. CTLs are used to create the new chain + // beginning with the self-signed certificate from the original + // chain as the end certificate of the new chain. This process + // continues building additional simple chains until the first + // self-signed certificate is a trusted certificate or until + // an additional simple chain cannot be built. + // + // The result is that we'll only get a single trusted chain to + // return to our caller. + var chainCtx *syscall.CertChainContext + err = syscall.CertGetCertificateChain(syscall.Handle(0), storeCtx, verifyTime, storeCtx.Store, para, 0, 0, &chainCtx) + if err != nil { + return nil, err + } + defer syscall.CertFreeCertificateChain(chainCtx) + + err = checkChainTrustStatus(c, chainCtx) + if err != nil { + return nil, err + } + + if hasDNSName { + err = checkChainSSLServerPolicy(c, chainCtx, opts) + if err != nil { + return nil, err + } + } + + chain, err := extractSimpleChain(chainCtx.Chains, int(chainCtx.ChainCount)) + if err != nil { + return nil, err + } + + chains = append(chains, chain) + + return chains, nil +} + +func loadSystemRoots() (*CertPool, error) { + // TODO: restore this functionality on Windows. We tried to do + // it in Go 1.8 but had to revert it. See Issue 18609. + // Returning (nil, nil) was the old behavior, prior to CL 30578. + return nil, nil + + const CRYPT_E_NOT_FOUND = 0x80092004 + + store, err := syscall.CertOpenSystemStore(0, syscall.StringToUTF16Ptr("ROOT")) + if err != nil { + return nil, err + } + defer syscall.CertCloseStore(store, 0) + + roots := NewCertPool() + var cert *syscall.CertContext + for { + cert, err = syscall.CertEnumCertificatesInStore(store, cert) + if err != nil { + if errno, ok := err.(syscall.Errno); ok { + if errno == CRYPT_E_NOT_FOUND { + break + } + } + return nil, err + } + if cert == nil { + break + } + // Copy the buf, since ParseCertificate does not create its own copy. + buf := (*[1 << 20]byte)(unsafe.Pointer(cert.EncodedCert))[:] + buf2 := make([]byte, cert.Length) + copy(buf2, buf) + if c, err := ParseCertificate(buf2); err == nil { + roots.AddCert(c) + } + } + return roots, nil +} diff --git a/vendor/github.com/google/certificate-transparency-go/x509/rpki.go b/vendor/github.com/google/certificate-transparency-go/x509/rpki.go new file mode 100644 index 0000000000000..520d6dc3abd46 --- /dev/null +++ b/vendor/github.com/google/certificate-transparency-go/x509/rpki.go @@ -0,0 +1,242 @@ +// Copyright 2018 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package x509 + +import ( + "bytes" + "encoding/binary" + "errors" + "fmt" + + "github.com/google/certificate-transparency-go/asn1" +) + +// IPAddressPrefix describes an IP address prefix as an ASN.1 bit string, +// where the BitLength field holds the prefix length. +type IPAddressPrefix asn1.BitString + +// IPAddressRange describes an (inclusive) IP address range. +type IPAddressRange struct { + Min IPAddressPrefix + Max IPAddressPrefix +} + +// Most relevant values for AFI from: +// http://www.iana.org/assignments/address-family-numbers. +const ( + IPv4AddressFamilyIndicator = uint16(1) + IPv6AddressFamilyIndicator = uint16(2) +) + +// IPAddressFamilyBlocks describes a set of ranges of IP addresses. +type IPAddressFamilyBlocks struct { + // AFI holds an address family indicator from + // http://www.iana.org/assignments/address-family-numbers. + AFI uint16 + // SAFI holds a subsequent address family indicator from + // http://www.iana.org/assignments/safi-namespace. + SAFI byte + // InheritFromIssuer indicates that the set of addresses should + // be taken from the issuer's certificate. + InheritFromIssuer bool + // AddressPrefixes holds prefixes if InheritFromIssuer is false. + AddressPrefixes []IPAddressPrefix + // AddressRanges holds ranges if InheritFromIssuer is false. + AddressRanges []IPAddressRange +} + +// Internal types for asn1 unmarshalling. +type ipAddressFamily struct { + AddressFamily []byte // 2-byte AFI plus optional 1 byte SAFI + Choice asn1.RawValue +} + +// Internally, use raw asn1.BitString rather than the IPAddressPrefix +// type alias (so that asn1.Unmarshal() decodes properly). +type ipAddressRange struct { + Min asn1.BitString + Max asn1.BitString +} + +func parseRPKIAddrBlocks(data []byte, nfe *NonFatalErrors) []*IPAddressFamilyBlocks { + // RFC 3779 2.2.3 + // IPAddrBlocks ::= SEQUENCE OF IPAddressFamily + // + // IPAddressFamily ::= SEQUENCE { -- AFI & optional SAFI -- + // addressFamily OCTET STRING (SIZE (2..3)), + // ipAddressChoice IPAddressChoice } + // + // IPAddressChoice ::= CHOICE { + // inherit NULL, -- inherit from issuer -- + // addressesOrRanges SEQUENCE OF IPAddressOrRange } + // + // IPAddressOrRange ::= CHOICE { + // addressPrefix IPAddress, + // addressRange IPAddressRange } + // + // IPAddressRange ::= SEQUENCE { + // min IPAddress, + // max IPAddress } + // + // IPAddress ::= BIT STRING + + var addrBlocks []ipAddressFamily + if rest, err := asn1.Unmarshal(data, &addrBlocks); err != nil { + nfe.AddError(fmt.Errorf("failed to asn1.Unmarshal ipAddrBlocks extension: %v", err)) + return nil + } else if len(rest) != 0 { + nfe.AddError(errors.New("trailing data after ipAddrBlocks extension")) + return nil + } + + var results []*IPAddressFamilyBlocks + for i, block := range addrBlocks { + var fam IPAddressFamilyBlocks + if l := len(block.AddressFamily); l < 2 || l > 3 { + nfe.AddError(fmt.Errorf("invalid address family length (%d) for ipAddrBlock.addressFamily", l)) + continue + } + fam.AFI = binary.BigEndian.Uint16(block.AddressFamily[0:2]) + if len(block.AddressFamily) > 2 { + fam.SAFI = block.AddressFamily[2] + } + // IPAddressChoice is an ASN.1 CHOICE where the chosen alternative is indicated by (implicit) + // tagging of the alternatives -- here, either NULL or SEQUENCE OF. + if bytes.Equal(block.Choice.FullBytes, asn1.NullBytes) { + fam.InheritFromIssuer = true + results = append(results, &fam) + continue + } + + var addrRanges []asn1.RawValue + if _, err := asn1.Unmarshal(block.Choice.FullBytes, &addrRanges); err != nil { + nfe.AddError(fmt.Errorf("failed to asn1.Unmarshal ipAddrBlocks[%d].ipAddressChoice.addressesOrRanges: %v", i, err)) + continue + } + for j, ar := range addrRanges { + // Each IPAddressOrRange is a CHOICE where the alternatives have distinct (implicit) + // tags -- here, either BIT STRING or SEQUENCE. + switch ar.Tag { + case asn1.TagBitString: + // BIT STRING for single prefix IPAddress + var val asn1.BitString + if _, err := asn1.Unmarshal(ar.FullBytes, &val); err != nil { + nfe.AddError(fmt.Errorf("failed to asn1.Unmarshal ipAddrBlocks[%d].ipAddressChoice.addressesOrRanges[%d].addressPrefix: %v", i, j, err)) + continue + } + fam.AddressPrefixes = append(fam.AddressPrefixes, IPAddressPrefix(val)) + + case asn1.TagSequence: + var val ipAddressRange + if _, err := asn1.Unmarshal(ar.FullBytes, &val); err != nil { + nfe.AddError(fmt.Errorf("failed to asn1.Unmarshal ipAddrBlocks[%d].ipAddressChoice.addressesOrRanges[%d].addressRange: %v", i, j, err)) + continue + } + fam.AddressRanges = append(fam.AddressRanges, IPAddressRange{Min: IPAddressPrefix(val.Min), Max: IPAddressPrefix(val.Max)}) + + default: + nfe.AddError(fmt.Errorf("unexpected ASN.1 type in ipAddrBlocks[%d].ipAddressChoice.addressesOrRanges[%d]: %+v", i, j, ar)) + } + } + results = append(results, &fam) + } + return results +} + +// ASIDRange describes an inclusive range of AS Identifiers (AS numbers or routing +// domain identifiers). +type ASIDRange struct { + Min int + Max int +} + +// ASIdentifiers describes a collection of AS Identifiers (AS numbers or routing +// domain identifiers). +type ASIdentifiers struct { + // InheritFromIssuer indicates that the set of AS identifiers should + // be taken from the issuer's certificate. + InheritFromIssuer bool + // ASIDs holds AS identifiers if InheritFromIssuer is false. + ASIDs []int + // ASIDs holds AS identifier ranges (inclusive) if InheritFromIssuer is false. + ASIDRanges []ASIDRange +} + +type asIdentifiers struct { + ASNum asn1.RawValue `asn1:"optional,tag:0"` + RDI asn1.RawValue `asn1:"optional,tag:1"` +} + +func parseASIDChoice(val asn1.RawValue, nfe *NonFatalErrors) *ASIdentifiers { + // RFC 3779 2.3.2 + // ASIdentifierChoice ::= CHOICE { + // inherit NULL, -- inherit from issuer -- + // asIdsOrRanges SEQUENCE OF ASIdOrRange } + // ASIdOrRange ::= CHOICE { + // id ASId, + // range ASRange } + // ASRange ::= SEQUENCE { + // min ASId, + // max ASId } + // ASId ::= INTEGER + if len(val.FullBytes) == 0 { // OPTIONAL + return nil + } + // ASIdentifierChoice is an ASN.1 CHOICE where the chosen alternative is indicated by (implicit) + // tagging of the alternatives -- here, either NULL or SEQUENCE OF. + if bytes.Equal(val.Bytes, asn1.NullBytes) { + return &ASIdentifiers{InheritFromIssuer: true} + } + var ids []asn1.RawValue + if rest, err := asn1.Unmarshal(val.Bytes, &ids); err != nil { + nfe.AddError(fmt.Errorf("failed to asn1.Unmarshal ASIdentifiers.asIdsOrRanges: %v", err)) + return nil + } else if len(rest) != 0 { + nfe.AddError(errors.New("trailing data after ASIdentifiers.asIdsOrRanges")) + return nil + } + var asID ASIdentifiers + for i, id := range ids { + // Each ASIdOrRange is a CHOICE where the alternatives have distinct (implicit) + // tags -- here, either INTEGER or SEQUENCE. + switch id.Tag { + case asn1.TagInteger: + var val int + if _, err := asn1.Unmarshal(id.FullBytes, &val); err != nil { + nfe.AddError(fmt.Errorf("failed to asn1.Unmarshal ASIdentifiers.asIdsOrRanges[%d].id: %v", i, err)) + continue + } + asID.ASIDs = append(asID.ASIDs, val) + + case asn1.TagSequence: + var val ASIDRange + if _, err := asn1.Unmarshal(id.FullBytes, &val); err != nil { + nfe.AddError(fmt.Errorf("failed to asn1.Unmarshal ASIdentifiers.asIdsOrRanges[%d].range: %v", i, err)) + continue + } + asID.ASIDRanges = append(asID.ASIDRanges, val) + + default: + nfe.AddError(fmt.Errorf("unexpected value in ASIdentifiers.asIdsOrRanges[%d]: %+v", i, id)) + } + } + return &asID +} + +func parseRPKIASIdentifiers(data []byte, nfe *NonFatalErrors) (*ASIdentifiers, *ASIdentifiers) { + // RFC 3779 2.3.2 + // ASIdentifiers ::= SEQUENCE { + // asnum [0] EXPLICIT ASIdentifierChoice OPTIONAL, + // rdi [1] EXPLICIT ASIdentifierChoice OPTIONAL} + var asIDs asIdentifiers + if rest, err := asn1.Unmarshal(data, &asIDs); err != nil { + nfe.AddError(fmt.Errorf("failed to asn1.Unmarshal ASIdentifiers extension: %v", err)) + return nil, nil + } else if len(rest) != 0 { + nfe.AddError(errors.New("trailing data after ASIdentifiers extension")) + return nil, nil + } + return parseASIDChoice(asIDs.ASNum, nfe), parseASIDChoice(asIDs.RDI, nfe) +} diff --git a/vendor/github.com/google/certificate-transparency-go/x509/sec1.go b/vendor/github.com/google/certificate-transparency-go/x509/sec1.go new file mode 100644 index 0000000000000..7c51e15c44de0 --- /dev/null +++ b/vendor/github.com/google/certificate-transparency-go/x509/sec1.go @@ -0,0 +1,113 @@ +// Copyright 2012 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package x509 + +import ( + "crypto/ecdsa" + "crypto/elliptic" + "errors" + "fmt" + "math/big" + + "github.com/google/certificate-transparency-go/asn1" +) + +const ecPrivKeyVersion = 1 + +// ecPrivateKey reflects an ASN.1 Elliptic Curve Private Key Structure. +// References: +// RFC 5915 +// SEC1 - http://www.secg.org/sec1-v2.pdf +// Per RFC 5915 the NamedCurveOID is marked as ASN.1 OPTIONAL, however in +// most cases it is not. +type ecPrivateKey struct { + Version int + PrivateKey []byte + NamedCurveOID asn1.ObjectIdentifier `asn1:"optional,explicit,tag:0"` + PublicKey asn1.BitString `asn1:"optional,explicit,tag:1"` +} + +// ParseECPrivateKey parses an ASN.1 Elliptic Curve Private Key Structure. +func ParseECPrivateKey(der []byte) (*ecdsa.PrivateKey, error) { + return parseECPrivateKey(nil, der) +} + +// MarshalECPrivateKey marshals an EC private key into ASN.1, DER format. +func MarshalECPrivateKey(key *ecdsa.PrivateKey) ([]byte, error) { + oid, ok := OIDFromNamedCurve(key.Curve) + if !ok { + return nil, errors.New("x509: unknown elliptic curve") + } + + return marshalECPrivateKeyWithOID(key, oid) +} + +// marshalECPrivateKey marshals an EC private key into ASN.1, DER format and +// sets the curve ID to the given OID, or omits it if OID is nil. +func marshalECPrivateKeyWithOID(key *ecdsa.PrivateKey, oid asn1.ObjectIdentifier) ([]byte, error) { + privateKeyBytes := key.D.Bytes() + paddedPrivateKey := make([]byte, (key.Curve.Params().N.BitLen()+7)/8) + copy(paddedPrivateKey[len(paddedPrivateKey)-len(privateKeyBytes):], privateKeyBytes) + + return asn1.Marshal(ecPrivateKey{ + Version: 1, + PrivateKey: paddedPrivateKey, + NamedCurveOID: oid, + PublicKey: asn1.BitString{Bytes: elliptic.Marshal(key.Curve, key.X, key.Y)}, + }) +} + +// parseECPrivateKey parses an ASN.1 Elliptic Curve Private Key Structure. +// The OID for the named curve may be provided from another source (such as +// the PKCS8 container) - if it is provided then use this instead of the OID +// that may exist in the EC private key structure. +func parseECPrivateKey(namedCurveOID *asn1.ObjectIdentifier, der []byte) (key *ecdsa.PrivateKey, err error) { + var privKey ecPrivateKey + if _, err := asn1.Unmarshal(der, &privKey); err != nil { + return nil, errors.New("x509: failed to parse EC private key: " + err.Error()) + } + if privKey.Version != ecPrivKeyVersion { + return nil, fmt.Errorf("x509: unknown EC private key version %d", privKey.Version) + } + + var nfe NonFatalErrors + var curve elliptic.Curve + if namedCurveOID != nil { + curve = namedCurveFromOID(*namedCurveOID, &nfe) + } else { + curve = namedCurveFromOID(privKey.NamedCurveOID, &nfe) + } + if curve == nil { + return nil, errors.New("x509: unknown elliptic curve") + } + + k := new(big.Int).SetBytes(privKey.PrivateKey) + curveOrder := curve.Params().N + if k.Cmp(curveOrder) >= 0 { + return nil, errors.New("x509: invalid elliptic curve private key value") + } + priv := new(ecdsa.PrivateKey) + priv.Curve = curve + priv.D = k + + privateKey := make([]byte, (curveOrder.BitLen()+7)/8) + + // Some private keys have leading zero padding. This is invalid + // according to [SEC1], but this code will ignore it. + for len(privKey.PrivateKey) > len(privateKey) { + if privKey.PrivateKey[0] != 0 { + return nil, errors.New("x509: invalid private key length") + } + privKey.PrivateKey = privKey.PrivateKey[1:] + } + + // Some private keys remove all leading zeros, this is also invalid + // according to [SEC1] but since OpenSSL used to do this, we ignore + // this too. + copy(privateKey[len(privateKey)-len(privKey.PrivateKey):], privKey.PrivateKey) + priv.X, priv.Y = curve.ScalarBaseMult(privateKey) + + return priv, nil +} diff --git a/vendor/github.com/google/certificate-transparency-go/x509/test-dir.crt b/vendor/github.com/google/certificate-transparency-go/x509/test-dir.crt new file mode 100644 index 0000000000000..b7fc9c5186196 --- /dev/null +++ b/vendor/github.com/google/certificate-transparency-go/x509/test-dir.crt @@ -0,0 +1,31 @@ +-----BEGIN CERTIFICATE----- +MIIFazCCA1OgAwIBAgIJAL8a/lsnspOqMA0GCSqGSIb3DQEBCwUAMEwxCzAJBgNV +BAYTAlVLMRMwEQYDVQQIDApUZXN0LVN0YXRlMRUwEwYDVQQKDAxHb2xhbmcgVGVz +dHMxETAPBgNVBAMMCHRlc3QtZGlyMB4XDTE3MDIwMTIzNTAyN1oXDTI3MDEzMDIz +NTAyN1owTDELMAkGA1UEBhMCVUsxEzARBgNVBAgMClRlc3QtU3RhdGUxFTATBgNV +BAoMDEdvbGFuZyBUZXN0czERMA8GA1UEAwwIdGVzdC1kaXIwggIiMA0GCSqGSIb3 +DQEBAQUAA4ICDwAwggIKAoICAQDzBoi43Yn30KN13PKFHu8LA4UmgCRToTukLItM +WK2Je45grs/axg9n3YJOXC6hmsyrkOnyBcx1xVNgSrOAll7fSjtChRIX72Xrloxu +XewtWVIrijqz6oylbvEmbRT3O8uynu5rF82Pmdiy8oiSfdywjKuPnE0hjV1ZSCql +MYcXqA+f0JFD8kMv4pbtxjGH8f2DkYQz+hHXLrJH4/MEYdVMQXoz/GDzLyOkrXBN +hpMaBBqg1p0P+tRdfLXuliNzA9vbZylzpF1YZ0gvsr0S5Y6LVtv7QIRygRuLY4kF +k+UYuFq8NrV8TykS7FVnO3tf4XcYZ7r2KV5FjYSrJtNNo85BV5c3xMD3fJ2XcOWk ++oD1ATdgAM3aKmSOxNtNItKKxBe1mkqDH41NbWx7xMad78gDznyeT0tjEOltN2bM +uXU1R/jgR/vq5Ec0AhXJyL/ziIcmuV2fSl/ZxT4ARD+16tgPiIx+welTf0v27/JY +adlfkkL5XsPRrbSguISrj7JeaO/gjG3KnDVHcZvYBpDfHqRhCgrosfe26TZcTXx2 +cRxOfvBjMz1zJAg+esuUzSkerreyRhzD7RpeZTwi6sxvx82MhYMbA3w1LtgdABio +9JRqZy3xqsIbNv7N46WO/qXL1UMRKb1UyHeW8g8btboz+B4zv1U0Nj+9qxPBbQui +dgL9LQIDAQABo1AwTjAdBgNVHQ4EFgQUy0/0W8nwQfz2tO6AZ2jPkEiTzvUwHwYD +VR0jBBgwFoAUy0/0W8nwQfz2tO6AZ2jPkEiTzvUwDAYDVR0TBAUwAwEB/zANBgkq +hkiG9w0BAQsFAAOCAgEAvEVnUYsIOt87rggmLPqEueynkuQ+562M8EDHSQl82zbe +xDCxeg3DvPgKb+RvaUdt1362z/szK10SoeMgx6+EQLoV9LiVqXwNqeYfixrhrdw3 +ppAhYYhymdkbUQCEMHypmXP1vPhAz4o8Bs+eES1M+zO6ErBiD7SqkmBElT+GixJC +6epC9ZQFs+dw3lPlbiZSsGE85sqc3VAs0/JgpL/pb1/Eg4s0FUhZD2C2uWdSyZGc +g0/v3aXJCp4j/9VoNhI1WXz3M45nysZIL5OQgXymLqJElQa1pZ3Wa4i/nidvT4AT +Xlxc/qijM8set/nOqp7hVd5J0uG6qdwLRILUddZ6OpXd7ZNi1EXg+Bpc7ehzGsDt +3UFGzYXDjxYnK2frQfjLS8stOQIqSrGthW6x0fdkVx0y8BByvd5J6+JmZl4UZfzA +m99VxXSt4B9x6BvnY7ktzcFDOjtuLc4B/7yg9fv1eQuStA4cHGGAttsCg1X/Kx8W +PvkkeH0UWDZ9vhH9K36703z89da6MWF+bz92B0+4HoOmlVaXRkvblsNaynJnL0LC +Ayry7QBxuh5cMnDdRwJB3AVJIiJ1GVpb7aGvBOnx+s2lwRv9HWtghb+cbwwktx1M +JHyBf3GZNSWTpKY7cD8V+NnBv3UuioOVVo+XAU4LF/bYUjdRpxWADJizNtZrtFo= +-----END CERTIFICATE----- diff --git a/vendor/github.com/google/certificate-transparency-go/x509/test-file.crt b/vendor/github.com/google/certificate-transparency-go/x509/test-file.crt new file mode 100644 index 0000000000000..caa83b9f824c1 --- /dev/null +++ b/vendor/github.com/google/certificate-transparency-go/x509/test-file.crt @@ -0,0 +1,32 @@ +-----BEGIN CERTIFICATE----- +MIIFbTCCA1WgAwIBAgIJAN338vEmMtLsMA0GCSqGSIb3DQEBCwUAME0xCzAJBgNV +BAYTAlVLMRMwEQYDVQQIDApUZXN0LVN0YXRlMRUwEwYDVQQKDAxHb2xhbmcgVGVz +dHMxEjAQBgNVBAMMCXRlc3QtZmlsZTAeFw0xNzAyMDEyMzUyMDhaFw0yNzAxMzAy +MzUyMDhaME0xCzAJBgNVBAYTAlVLMRMwEQYDVQQIDApUZXN0LVN0YXRlMRUwEwYD +VQQKDAxHb2xhbmcgVGVzdHMxEjAQBgNVBAMMCXRlc3QtZmlsZTCCAiIwDQYJKoZI +hvcNAQEBBQADggIPADCCAgoCggIBAPMGiLjdiffQo3Xc8oUe7wsDhSaAJFOhO6Qs +i0xYrYl7jmCuz9rGD2fdgk5cLqGazKuQ6fIFzHXFU2BKs4CWXt9KO0KFEhfvZeuW +jG5d7C1ZUiuKOrPqjKVu8SZtFPc7y7Ke7msXzY+Z2LLyiJJ93LCMq4+cTSGNXVlI +KqUxhxeoD5/QkUPyQy/ilu3GMYfx/YORhDP6Edcuskfj8wRh1UxBejP8YPMvI6St +cE2GkxoEGqDWnQ/61F18te6WI3MD29tnKXOkXVhnSC+yvRLljotW2/tAhHKBG4tj +iQWT5Ri4Wrw2tXxPKRLsVWc7e1/hdxhnuvYpXkWNhKsm002jzkFXlzfEwPd8nZdw 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+75FrYMApUdvcjp4uzbBoED4XRQlx9kdFHVbYgmE/+yddBYJM8u4YlgAL0hW2/D8p +z9JWIfxVmjJnBnXaKGBuiUyZ864A3PJndP6EMMo7TzS2CDnfCYuJjvI0KvDjFNmc +rQA04+qfMSEz3nmKhbbZu4eYLzlADhfH8tT4GMtXf71WLA5AUHGf2Y4+HIHTsmHG +vQ== +-----END CERTIFICATE----- diff --git a/vendor/github.com/google/certificate-transparency-go/x509/verify.go b/vendor/github.com/google/certificate-transparency-go/x509/verify.go new file mode 100644 index 0000000000000..beafc3b00085b --- /dev/null +++ b/vendor/github.com/google/certificate-transparency-go/x509/verify.go @@ -0,0 +1,1090 @@ +// Copyright 2011 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package x509 + +import ( + "bytes" + "errors" + "fmt" + "net" + "net/url" + "reflect" + "runtime" + "strconv" + "strings" + "time" + "unicode/utf8" + + "github.com/google/certificate-transparency-go/asn1" +) + +type InvalidReason int + +const ( + // NotAuthorizedToSign results when a certificate is signed by another + // which isn't marked as a CA certificate. + NotAuthorizedToSign InvalidReason = iota + // Expired results when a certificate has expired, based on the time + // given in the VerifyOptions. + Expired + // CANotAuthorizedForThisName results when an intermediate or root + // certificate has a name constraint which doesn't permit a DNS or + // other name (including IP address) in the leaf certificate. + CANotAuthorizedForThisName + // TooManyIntermediates results when a path length constraint is + // violated. + TooManyIntermediates + // IncompatibleUsage results when the certificate's key usage indicates + // that it may only be used for a different purpose. + IncompatibleUsage + // NameMismatch results when the subject name of a parent certificate + // does not match the issuer name in the child. + NameMismatch + // NameConstraintsWithoutSANs results when a leaf certificate doesn't + // contain a Subject Alternative Name extension, but a CA certificate + // contains name constraints. + NameConstraintsWithoutSANs + // UnconstrainedName results when a CA certificate contains permitted + // name constraints, but leaf certificate contains a name of an + // unsupported or unconstrained type. + UnconstrainedName + // TooManyConstraints results when the number of comparision operations + // needed to check a certificate exceeds the limit set by + // VerifyOptions.MaxConstraintComparisions. This limit exists to + // prevent pathological certificates can consuming excessive amounts of + // CPU time to verify. + TooManyConstraints + // CANotAuthorizedForExtKeyUsage results when an intermediate or root + // certificate does not permit an extended key usage that is claimed by + // the leaf certificate. + CANotAuthorizedForExtKeyUsage +) + +// CertificateInvalidError results when an odd error occurs. Users of this +// library probably want to handle all these errors uniformly. +type CertificateInvalidError struct { + Cert *Certificate + Reason InvalidReason + Detail string +} + +func (e CertificateInvalidError) Error() string { + switch e.Reason { + case NotAuthorizedToSign: + return "x509: certificate is not authorized to sign other certificates" + case Expired: + return "x509: certificate has expired or is not yet valid" + case CANotAuthorizedForThisName: + return "x509: a root or intermediate certificate is not authorized to sign for this name: " + e.Detail + case CANotAuthorizedForExtKeyUsage: + return "x509: a root or intermediate certificate is not authorized for an extended key usage: " + e.Detail + case TooManyIntermediates: + return "x509: too many intermediates for path length constraint" + case IncompatibleUsage: + return "x509: certificate specifies an incompatible key usage: " + e.Detail + case NameMismatch: + return "x509: issuer name does not match subject from issuing certificate" + case NameConstraintsWithoutSANs: + return "x509: issuer has name constraints but leaf doesn't have a SAN extension" + case UnconstrainedName: + return "x509: issuer has name constraints but leaf contains unknown or unconstrained name: " + e.Detail + } + return "x509: unknown error" +} + +// HostnameError results when the set of authorized names doesn't match the +// requested name. +type HostnameError struct { + Certificate *Certificate + Host string +} + +func (h HostnameError) Error() string { + c := h.Certificate + + var valid string + if ip := net.ParseIP(h.Host); ip != nil { + // Trying to validate an IP + if len(c.IPAddresses) == 0 { + return "x509: cannot validate certificate for " + h.Host + " because it doesn't contain any IP SANs" + } + for _, san := range c.IPAddresses { + if len(valid) > 0 { + valid += ", " + } + valid += san.String() + } + } else { + if c.hasSANExtension() { + valid = strings.Join(c.DNSNames, ", ") + } else { + valid = c.Subject.CommonName + } + } + + if len(valid) == 0 { + return "x509: certificate is not valid for any names, but wanted to match " + h.Host + } + return "x509: certificate is valid for " + valid + ", not " + h.Host +} + +// UnknownAuthorityError results when the certificate issuer is unknown +type UnknownAuthorityError struct { + Cert *Certificate + // hintErr contains an error that may be helpful in determining why an + // authority wasn't found. + hintErr error + // hintCert contains a possible authority certificate that was rejected + // because of the error in hintErr. + hintCert *Certificate +} + +func (e UnknownAuthorityError) Error() string { + s := "x509: certificate signed by unknown authority" + if e.hintErr != nil { + certName := e.hintCert.Subject.CommonName + if len(certName) == 0 { + if len(e.hintCert.Subject.Organization) > 0 { + certName = e.hintCert.Subject.Organization[0] + } else { + certName = "serial:" + e.hintCert.SerialNumber.String() + } + } + s += fmt.Sprintf(" (possibly because of %q while trying to verify candidate authority certificate %q)", e.hintErr, certName) + } + return s +} + +// SystemRootsError results when we fail to load the system root certificates. +type SystemRootsError struct { + Err error +} + +func (se SystemRootsError) Error() string { + msg := "x509: failed to load system roots and no roots provided" + if se.Err != nil { + return msg + "; " + se.Err.Error() + } + return msg +} + +// errNotParsed is returned when a certificate without ASN.1 contents is +// verified. Platform-specific verification needs the ASN.1 contents. +var errNotParsed = errors.New("x509: missing ASN.1 contents; use ParseCertificate") + +// VerifyOptions contains parameters for Certificate.Verify. It's a structure +// because other PKIX verification APIs have ended up needing many options. +type VerifyOptions struct { + DNSName string + Intermediates *CertPool + Roots *CertPool // if nil, the system roots are used + CurrentTime time.Time // if zero, the current time is used + // Options to disable various verification checks. + DisableTimeChecks bool + DisableCriticalExtensionChecks bool + DisableNameChecks bool + DisableEKUChecks bool + DisablePathLenChecks bool + DisableNameConstraintChecks bool + // KeyUsage specifies which Extended Key Usage values are acceptable. A leaf + // certificate is accepted if it contains any of the listed values. An empty + // list means ExtKeyUsageServerAuth. To accept any key usage, include + // ExtKeyUsageAny. + // + // Certificate chains are required to nest extended key usage values, + // irrespective of this value. This matches the Windows CryptoAPI behavior, + // but not the spec. + KeyUsages []ExtKeyUsage + // MaxConstraintComparisions is the maximum number of comparisons to + // perform when checking a given certificate's name constraints. If + // zero, a sensible default is used. This limit prevents pathological + // certificates from consuming excessive amounts of CPU time when + // validating. + MaxConstraintComparisions int +} + +const ( + leafCertificate = iota + intermediateCertificate + rootCertificate +) + +// rfc2821Mailbox represents a “mailbox” (which is an email address to most +// people) by breaking it into the “local” (i.e. before the '@') and “domain” +// parts. +type rfc2821Mailbox struct { + local, domain string +} + +// parseRFC2821Mailbox parses an email address into local and domain parts, +// based on the ABNF for a “Mailbox” from RFC 2821. According to +// https://tools.ietf.org/html/rfc5280#section-4.2.1.6 that's correct for an +// rfc822Name from a certificate: “The format of an rfc822Name is a "Mailbox" +// as defined in https://tools.ietf.org/html/rfc2821#section-4.1.2”. +func parseRFC2821Mailbox(in string) (mailbox rfc2821Mailbox, ok bool) { + if len(in) == 0 { + return mailbox, false + } + + localPartBytes := make([]byte, 0, len(in)/2) + + if in[0] == '"' { + // Quoted-string = DQUOTE *qcontent DQUOTE + // non-whitespace-control = %d1-8 / %d11 / %d12 / %d14-31 / %d127 + // qcontent = qtext / quoted-pair + // qtext = non-whitespace-control / + // %d33 / %d35-91 / %d93-126 + // quoted-pair = ("\" text) / obs-qp + // text = %d1-9 / %d11 / %d12 / %d14-127 / obs-text + // + // (Names beginning with “obs-” are the obsolete syntax from + // https://tools.ietf.org/html/rfc2822#section-4. Since it has + // been 16 years, we no longer accept that.) + in = in[1:] + QuotedString: + for { + if len(in) == 0 { + return mailbox, false + } + c := in[0] + in = in[1:] + + switch { + case c == '"': + break QuotedString + + case c == '\\': + // quoted-pair + if len(in) == 0 { + return mailbox, false + } + if in[0] == 11 || + in[0] == 12 || + (1 <= in[0] && in[0] <= 9) || + (14 <= in[0] && in[0] <= 127) { + localPartBytes = append(localPartBytes, in[0]) + in = in[1:] + } else { + return mailbox, false + } + + case c == 11 || + c == 12 || + // Space (char 32) is not allowed based on the + // BNF, but RFC 3696 gives an example that + // assumes that it is. Several “verified” + // errata continue to argue about this point. + // We choose to accept it. + c == 32 || + c == 33 || + c == 127 || + (1 <= c && c <= 8) || + (14 <= c && c <= 31) || + (35 <= c && c <= 91) || + (93 <= c && c <= 126): + // qtext + localPartBytes = append(localPartBytes, c) + + default: + return mailbox, false + } + } + } else { + // Atom ("." Atom)* + NextChar: + for len(in) > 0 { + // atext from https://tools.ietf.org/html/rfc2822#section-3.2.4 + c := in[0] + + switch { + case c == '\\': + // Examples given in RFC 3696 suggest that + // escaped characters can appear outside of a + // quoted string. Several “verified” errata + // continue to argue the point. We choose to + // accept it. + in = in[1:] + if len(in) == 0 { + return mailbox, false + } + fallthrough + + case ('0' <= c && c <= '9') || + ('a' <= c && c <= 'z') || + ('A' <= c && c <= 'Z') || + c == '!' || c == '#' || c == '$' || c == '%' || + c == '&' || c == '\'' || c == '*' || c == '+' || + c == '-' || c == '/' || c == '=' || c == '?' || + c == '^' || c == '_' || c == '`' || c == '{' || + c == '|' || c == '}' || c == '~' || c == '.': + localPartBytes = append(localPartBytes, in[0]) + in = in[1:] + + default: + break NextChar + } + } + + if len(localPartBytes) == 0 { + return mailbox, false + } + + // https://tools.ietf.org/html/rfc3696#section-3 + // “period (".") may also appear, but may not be used to start + // or end the local part, nor may two or more consecutive + // periods appear.” + twoDots := []byte{'.', '.'} + if localPartBytes[0] == '.' || + localPartBytes[len(localPartBytes)-1] == '.' || + bytes.Contains(localPartBytes, twoDots) { + return mailbox, false + } + } + + if len(in) == 0 || in[0] != '@' { + return mailbox, false + } + in = in[1:] + + // The RFC species a format for domains, but that's known to be + // violated in practice so we accept that anything after an '@' is the + // domain part. + if _, ok := domainToReverseLabels(in); !ok { + return mailbox, false + } + + mailbox.local = string(localPartBytes) + mailbox.domain = in + return mailbox, true +} + +// domainToReverseLabels converts a textual domain name like foo.example.com to +// the list of labels in reverse order, e.g. ["com", "example", "foo"]. +func domainToReverseLabels(domain string) (reverseLabels []string, ok bool) { + for len(domain) > 0 { + if i := strings.LastIndexByte(domain, '.'); i == -1 { + reverseLabels = append(reverseLabels, domain) + domain = "" + } else { + reverseLabels = append(reverseLabels, domain[i+1:len(domain)]) + domain = domain[:i] + } + } + + if len(reverseLabels) > 0 && len(reverseLabels[0]) == 0 { + // An empty label at the end indicates an absolute value. + return nil, false + } + + for _, label := range reverseLabels { + if len(label) == 0 { + // Empty labels are otherwise invalid. + return nil, false + } + + for _, c := range label { + if c < 33 || c > 126 { + // Invalid character. + return nil, false + } + } + } + + return reverseLabels, true +} + +func matchEmailConstraint(mailbox rfc2821Mailbox, constraint string) (bool, error) { + // If the constraint contains an @, then it specifies an exact mailbox + // name. + if strings.Contains(constraint, "@") { + constraintMailbox, ok := parseRFC2821Mailbox(constraint) + if !ok { + return false, fmt.Errorf("x509: internal error: cannot parse constraint %q", constraint) + } + return mailbox.local == constraintMailbox.local && strings.EqualFold(mailbox.domain, constraintMailbox.domain), nil + } + + // Otherwise the constraint is like a DNS constraint of the domain part + // of the mailbox. + return matchDomainConstraint(mailbox.domain, constraint) +} + +func matchURIConstraint(uri *url.URL, constraint string) (bool, error) { + // https://tools.ietf.org/html/rfc5280#section-4.2.1.10 + // “a uniformResourceIdentifier that does not include an authority + // component with a host name specified as a fully qualified domain + // name (e.g., if the URI either does not include an authority + // component or includes an authority component in which the host name + // is specified as an IP address), then the application MUST reject the + // certificate.” + + host := uri.Host + if len(host) == 0 { + return false, fmt.Errorf("URI with empty host (%q) cannot be matched against constraints", uri.String()) + } + + if strings.Contains(host, ":") && !strings.HasSuffix(host, "]") { + var err error + host, _, err = net.SplitHostPort(uri.Host) + if err != nil { + return false, err + } + } + + if strings.HasPrefix(host, "[") && strings.HasSuffix(host, "]") || + net.ParseIP(host) != nil { + return false, fmt.Errorf("URI with IP (%q) cannot be matched against constraints", uri.String()) + } + + return matchDomainConstraint(host, constraint) +} + +func matchIPConstraint(ip net.IP, constraint *net.IPNet) (bool, error) { + if len(ip) != len(constraint.IP) { + return false, nil + } + + for i := range ip { + if mask := constraint.Mask[i]; ip[i]&mask != constraint.IP[i]&mask { + return false, nil + } + } + + return true, nil +} + +func matchDomainConstraint(domain, constraint string) (bool, error) { + // The meaning of zero length constraints is not specified, but this + // code follows NSS and accepts them as matching everything. + if len(constraint) == 0 { + return true, nil + } + + domainLabels, ok := domainToReverseLabels(domain) + if !ok { + return false, fmt.Errorf("x509: internal error: cannot parse domain %q", domain) + } + + // RFC 5280 says that a leading period in a domain name means that at + // least one label must be prepended, but only for URI and email + // constraints, not DNS constraints. The code also supports that + // behaviour for DNS constraints. + + mustHaveSubdomains := false + if constraint[0] == '.' { + mustHaveSubdomains = true + constraint = constraint[1:] + } + + constraintLabels, ok := domainToReverseLabels(constraint) + if !ok { + return false, fmt.Errorf("x509: internal error: cannot parse domain %q", constraint) + } + + if len(domainLabels) < len(constraintLabels) || + (mustHaveSubdomains && len(domainLabels) == len(constraintLabels)) { + return false, nil + } + + for i, constraintLabel := range constraintLabels { + if !strings.EqualFold(constraintLabel, domainLabels[i]) { + return false, nil + } + } + + return true, nil +} + +// checkNameConstraints checks that c permits a child certificate to claim the +// given name, of type nameType. The argument parsedName contains the parsed +// form of name, suitable for passing to the match function. The total number +// of comparisons is tracked in the given count and should not exceed the given +// limit. +func (c *Certificate) checkNameConstraints(count *int, + maxConstraintComparisons int, + nameType string, + name string, + parsedName interface{}, + match func(parsedName, constraint interface{}) (match bool, err error), + permitted, excluded interface{}) error { + + excludedValue := reflect.ValueOf(excluded) + + *count += excludedValue.Len() + if *count > maxConstraintComparisons { + return CertificateInvalidError{c, TooManyConstraints, ""} + } + + for i := 0; i < excludedValue.Len(); i++ { + constraint := excludedValue.Index(i).Interface() + match, err := match(parsedName, constraint) + if err != nil { + return CertificateInvalidError{c, CANotAuthorizedForThisName, err.Error()} + } + + if match { + return CertificateInvalidError{c, CANotAuthorizedForThisName, fmt.Sprintf("%s %q is excluded by constraint %q", nameType, name, constraint)} + } + } + + permittedValue := reflect.ValueOf(permitted) + + *count += permittedValue.Len() + if *count > maxConstraintComparisons { + return CertificateInvalidError{c, TooManyConstraints, ""} + } + + ok := true + for i := 0; i < permittedValue.Len(); i++ { + constraint := permittedValue.Index(i).Interface() + + var err error + if ok, err = match(parsedName, constraint); err != nil { + return CertificateInvalidError{c, CANotAuthorizedForThisName, err.Error()} + } + + if ok { + break + } + } + + if !ok { + return CertificateInvalidError{c, CANotAuthorizedForThisName, fmt.Sprintf("%s %q is not permitted by any constraint", nameType, name)} + } + + return nil +} + +const ( + checkingAgainstIssuerCert = iota + checkingAgainstLeafCert +) + +// ekuPermittedBy returns true iff the given extended key usage is permitted by +// the given EKU from a certificate. Normally, this would be a simple +// comparison plus a special case for the “any” EKU. But, in order to support +// existing certificates, some exceptions are made. +func ekuPermittedBy(eku, certEKU ExtKeyUsage, context int) bool { + if certEKU == ExtKeyUsageAny || eku == certEKU { + return true + } + + // Some exceptions are made to support existing certificates. Firstly, + // the ServerAuth and SGC EKUs are treated as a group. + mapServerAuthEKUs := func(eku ExtKeyUsage) ExtKeyUsage { + if eku == ExtKeyUsageNetscapeServerGatedCrypto || eku == ExtKeyUsageMicrosoftServerGatedCrypto { + return ExtKeyUsageServerAuth + } + return eku + } + + eku = mapServerAuthEKUs(eku) + certEKU = mapServerAuthEKUs(certEKU) + + if eku == certEKU { + return true + } + + // If checking a requested EKU against the list in a leaf certificate there + // are fewer exceptions. + if context == checkingAgainstLeafCert { + return false + } + + // ServerAuth in a CA permits ClientAuth in the leaf. + return (eku == ExtKeyUsageClientAuth && certEKU == ExtKeyUsageServerAuth) || + // Any CA may issue an OCSP responder certificate. + eku == ExtKeyUsageOCSPSigning || + // Code-signing CAs can use Microsoft's commercial and + // kernel-mode EKUs. + (eku == ExtKeyUsageMicrosoftCommercialCodeSigning || eku == ExtKeyUsageMicrosoftKernelCodeSigning) && certEKU == ExtKeyUsageCodeSigning +} + +// isValid performs validity checks on c given that it is a candidate to append +// to the chain in currentChain. +func (c *Certificate) isValid(certType int, currentChain []*Certificate, opts *VerifyOptions) error { + if !opts.DisableCriticalExtensionChecks && len(c.UnhandledCriticalExtensions) > 0 { + return UnhandledCriticalExtension{ID: c.UnhandledCriticalExtensions[0]} + } + + if !opts.DisableNameChecks && len(currentChain) > 0 { + child := currentChain[len(currentChain)-1] + if !bytes.Equal(child.RawIssuer, c.RawSubject) { + return CertificateInvalidError{c, NameMismatch, ""} + } + } + + if !opts.DisableTimeChecks { + now := opts.CurrentTime + if now.IsZero() { + now = time.Now() + } + if now.Before(c.NotBefore) || now.After(c.NotAfter) { + return CertificateInvalidError{c, Expired, ""} + } + } + + maxConstraintComparisons := opts.MaxConstraintComparisions + if maxConstraintComparisons == 0 { + maxConstraintComparisons = 250000 + } + comparisonCount := 0 + + var leaf *Certificate + if certType == intermediateCertificate || certType == rootCertificate { + if len(currentChain) == 0 { + return errors.New("x509: internal error: empty chain when appending CA cert") + } + leaf = currentChain[0] + } + + if !opts.DisableNameConstraintChecks && (certType == intermediateCertificate || certType == rootCertificate) && c.hasNameConstraints() { + sanExtension, ok := leaf.getSANExtension() + if !ok { + // This is the deprecated, legacy case of depending on + // the CN as a hostname. Chains modern enough to be + // using name constraints should not be depending on + // CNs. + return CertificateInvalidError{c, NameConstraintsWithoutSANs, ""} + } + + err := forEachSAN(sanExtension, func(tag int, data []byte) error { + switch tag { + case nameTypeEmail: + name := string(data) + mailbox, ok := parseRFC2821Mailbox(name) + if !ok { + return fmt.Errorf("x509: cannot parse rfc822Name %q", mailbox) + } + + if err := c.checkNameConstraints(&comparisonCount, maxConstraintComparisons, "email address", name, mailbox, + func(parsedName, constraint interface{}) (bool, error) { + return matchEmailConstraint(parsedName.(rfc2821Mailbox), constraint.(string)) + }, c.PermittedEmailAddresses, c.ExcludedEmailAddresses); err != nil { + return err + } + + case nameTypeDNS: + name := string(data) + if _, ok := domainToReverseLabels(name); !ok { + return fmt.Errorf("x509: cannot parse dnsName %q", name) + } + + if err := c.checkNameConstraints(&comparisonCount, maxConstraintComparisons, "DNS name", name, name, + func(parsedName, constraint interface{}) (bool, error) { + return matchDomainConstraint(parsedName.(string), constraint.(string)) + }, c.PermittedDNSDomains, c.ExcludedDNSDomains); err != nil { + return err + } + + case nameTypeURI: + name := string(data) + uri, err := url.Parse(name) + if err != nil { + return fmt.Errorf("x509: internal error: URI SAN %q failed to parse", name) + } + + if err := c.checkNameConstraints(&comparisonCount, maxConstraintComparisons, "URI", name, uri, + func(parsedName, constraint interface{}) (bool, error) { + return matchURIConstraint(parsedName.(*url.URL), constraint.(string)) + }, c.PermittedURIDomains, c.ExcludedURIDomains); err != nil { + return err + } + + case nameTypeIP: + ip := net.IP(data) + if l := len(ip); l != net.IPv4len && l != net.IPv6len { + return fmt.Errorf("x509: internal error: IP SAN %x failed to parse", data) + } + + if err := c.checkNameConstraints(&comparisonCount, maxConstraintComparisons, "IP address", ip.String(), ip, + func(parsedName, constraint interface{}) (bool, error) { + return matchIPConstraint(parsedName.(net.IP), constraint.(*net.IPNet)) + }, c.PermittedIPRanges, c.ExcludedIPRanges); err != nil { + return err + } + + default: + // Unknown SAN types are ignored. + } + + return nil + }) + + if err != nil { + return err + } + } + + checkEKUs := !opts.DisableEKUChecks && certType == intermediateCertificate + + // If no extended key usages are specified, then all are acceptable. + if checkEKUs && (len(c.ExtKeyUsage) == 0 && len(c.UnknownExtKeyUsage) == 0) { + checkEKUs = false + } + + // If the “any” key usage is permitted, then no more checks are needed. + if checkEKUs { + for _, caEKU := range c.ExtKeyUsage { + comparisonCount++ + if caEKU == ExtKeyUsageAny { + checkEKUs = false + break + } + } + } + + if checkEKUs { + NextEKU: + for _, eku := range leaf.ExtKeyUsage { + if comparisonCount > maxConstraintComparisons { + return CertificateInvalidError{c, TooManyConstraints, ""} + } + + for _, caEKU := range c.ExtKeyUsage { + comparisonCount++ + if ekuPermittedBy(eku, caEKU, checkingAgainstIssuerCert) { + continue NextEKU + } + } + + oid, _ := oidFromExtKeyUsage(eku) + return CertificateInvalidError{c, CANotAuthorizedForExtKeyUsage, fmt.Sprintf("EKU not permitted: %#v", oid)} + } + + NextUnknownEKU: + for _, eku := range leaf.UnknownExtKeyUsage { + if comparisonCount > maxConstraintComparisons { + return CertificateInvalidError{c, TooManyConstraints, ""} + } + + for _, caEKU := range c.UnknownExtKeyUsage { + comparisonCount++ + if caEKU.Equal(eku) { + continue NextUnknownEKU + } + } + + return CertificateInvalidError{c, CANotAuthorizedForExtKeyUsage, fmt.Sprintf("EKU not permitted: %#v", eku)} + } + } + + // KeyUsage status flags are ignored. From Engineering Security, Peter + // Gutmann: A European government CA marked its signing certificates as + // being valid for encryption only, but no-one noticed. Another + // European CA marked its signature keys as not being valid for + // signatures. A different CA marked its own trusted root certificate + // as being invalid for certificate signing. Another national CA + // distributed a certificate to be used to encrypt data for the + // country’s tax authority that was marked as only being usable for + // digital signatures but not for encryption. Yet another CA reversed + // the order of the bit flags in the keyUsage due to confusion over + // encoding endianness, essentially setting a random keyUsage in + // certificates that it issued. Another CA created a self-invalidating + // certificate by adding a certificate policy statement stipulating + // that the certificate had to be used strictly as specified in the + // keyUsage, and a keyUsage containing a flag indicating that the RSA + // encryption key could only be used for Diffie-Hellman key agreement. + + if certType == intermediateCertificate && (!c.BasicConstraintsValid || !c.IsCA) { + return CertificateInvalidError{c, NotAuthorizedToSign, ""} + } + + if !opts.DisablePathLenChecks && c.BasicConstraintsValid && c.MaxPathLen >= 0 { + numIntermediates := len(currentChain) - 1 + if numIntermediates > c.MaxPathLen { + return CertificateInvalidError{c, TooManyIntermediates, ""} + } + } + + return nil +} + +// formatOID formats an ASN.1 OBJECT IDENTIFER in the common, dotted style. +func formatOID(oid asn1.ObjectIdentifier) string { + ret := "" + for i, v := range oid { + if i > 0 { + ret += "." + } + ret += strconv.Itoa(v) + } + return ret +} + +// Verify attempts to verify c by building one or more chains from c to a +// certificate in opts.Roots, using certificates in opts.Intermediates if +// needed. If successful, it returns one or more chains where the first +// element of the chain is c and the last element is from opts.Roots. +// +// If opts.Roots is nil and system roots are unavailable the returned error +// will be of type SystemRootsError. +// +// Name constraints in the intermediates will be applied to all names claimed +// in the chain, not just opts.DNSName. Thus it is invalid for a leaf to claim +// example.com if an intermediate doesn't permit it, even if example.com is not +// the name being validated. Note that DirectoryName constraints are not +// supported. +// +// Extended Key Usage values are enforced down a chain, so an intermediate or +// root that enumerates EKUs prevents a leaf from asserting an EKU not in that +// list. +// +// WARNING: this function doesn't do any revocation checking. +func (c *Certificate) Verify(opts VerifyOptions) (chains [][]*Certificate, err error) { + // Platform-specific verification needs the ASN.1 contents so + // this makes the behavior consistent across platforms. + if len(c.Raw) == 0 { + return nil, errNotParsed + } + if opts.Intermediates != nil { + for _, intermediate := range opts.Intermediates.certs { + if len(intermediate.Raw) == 0 { + return nil, errNotParsed + } + } + } + + // Use Windows's own verification and chain building. + if opts.Roots == nil && runtime.GOOS == "windows" { + return c.systemVerify(&opts) + } + + if opts.Roots == nil { + opts.Roots = systemRootsPool() + if opts.Roots == nil { + return nil, SystemRootsError{systemRootsErr} + } + } + + err = c.isValid(leafCertificate, nil, &opts) + if err != nil { + return + } + + if len(opts.DNSName) > 0 { + err = c.VerifyHostname(opts.DNSName) + if err != nil { + return + } + } + + requestedKeyUsages := make([]ExtKeyUsage, len(opts.KeyUsages)) + copy(requestedKeyUsages, opts.KeyUsages) + if len(requestedKeyUsages) == 0 { + requestedKeyUsages = append(requestedKeyUsages, ExtKeyUsageServerAuth) + } + + // If no key usages are specified, then any are acceptable. + checkEKU := !opts.DisableEKUChecks && len(c.ExtKeyUsage) > 0 + + for _, eku := range requestedKeyUsages { + if eku == ExtKeyUsageAny { + checkEKU = false + break + } + } + + if checkEKU { + foundMatch := false + NextUsage: + for _, eku := range requestedKeyUsages { + for _, leafEKU := range c.ExtKeyUsage { + if ekuPermittedBy(eku, leafEKU, checkingAgainstLeafCert) { + foundMatch = true + break NextUsage + } + } + } + + if !foundMatch { + msg := "leaf contains the following, recognized EKUs: " + + for i, leafEKU := range c.ExtKeyUsage { + oid, ok := oidFromExtKeyUsage(leafEKU) + if !ok { + continue + } + + if i > 0 { + msg += ", " + } + msg += formatOID(oid) + } + + return nil, CertificateInvalidError{c, IncompatibleUsage, msg} + } + } + + var candidateChains [][]*Certificate + if opts.Roots.contains(c) { + candidateChains = append(candidateChains, []*Certificate{c}) + } else { + if candidateChains, err = c.buildChains(make(map[int][][]*Certificate), []*Certificate{c}, &opts); err != nil { + return nil, err + } + } + + return candidateChains, nil +} + +func appendToFreshChain(chain []*Certificate, cert *Certificate) []*Certificate { + n := make([]*Certificate, len(chain)+1) + copy(n, chain) + n[len(chain)] = cert + return n +} + +func (c *Certificate) buildChains(cache map[int][][]*Certificate, currentChain []*Certificate, opts *VerifyOptions) (chains [][]*Certificate, err error) { + possibleRoots, failedRoot, rootErr := opts.Roots.findVerifiedParents(c) +nextRoot: + for _, rootNum := range possibleRoots { + root := opts.Roots.certs[rootNum] + + for _, cert := range currentChain { + if cert.Equal(root) { + continue nextRoot + } + } + + err = root.isValid(rootCertificate, currentChain, opts) + if err != nil { + continue + } + chains = append(chains, appendToFreshChain(currentChain, root)) + } + + possibleIntermediates, failedIntermediate, intermediateErr := opts.Intermediates.findVerifiedParents(c) +nextIntermediate: + for _, intermediateNum := range possibleIntermediates { + intermediate := opts.Intermediates.certs[intermediateNum] + for _, cert := range currentChain { + if cert.Equal(intermediate) { + continue nextIntermediate + } + } + err = intermediate.isValid(intermediateCertificate, currentChain, opts) + if err != nil { + continue + } + var childChains [][]*Certificate + childChains, ok := cache[intermediateNum] + if !ok { + childChains, err = intermediate.buildChains(cache, appendToFreshChain(currentChain, intermediate), opts) + cache[intermediateNum] = childChains + } + chains = append(chains, childChains...) + } + + if len(chains) > 0 { + err = nil + } + + if len(chains) == 0 && err == nil { + hintErr := rootErr + hintCert := failedRoot + if hintErr == nil { + hintErr = intermediateErr + hintCert = failedIntermediate + } + err = UnknownAuthorityError{c, hintErr, hintCert} + } + + return +} + +func matchHostnames(pattern, host string) bool { + host = strings.TrimSuffix(host, ".") + pattern = strings.TrimSuffix(pattern, ".") + + if len(pattern) == 0 || len(host) == 0 { + return false + } + + patternParts := strings.Split(pattern, ".") + hostParts := strings.Split(host, ".") + + if len(patternParts) != len(hostParts) { + return false + } + + for i, patternPart := range patternParts { + if i == 0 && patternPart == "*" { + continue + } + if patternPart != hostParts[i] { + return false + } + } + + return true +} + +// toLowerCaseASCII returns a lower-case version of in. See RFC 6125 6.4.1. We use +// an explicitly ASCII function to avoid any sharp corners resulting from +// performing Unicode operations on DNS labels. +func toLowerCaseASCII(in string) string { + // If the string is already lower-case then there's nothing to do. + isAlreadyLowerCase := true + for _, c := range in { + if c == utf8.RuneError { + // If we get a UTF-8 error then there might be + // upper-case ASCII bytes in the invalid sequence. + isAlreadyLowerCase = false + break + } + if 'A' <= c && c <= 'Z' { + isAlreadyLowerCase = false + break + } + } + + if isAlreadyLowerCase { + return in + } + + out := []byte(in) + for i, c := range out { + if 'A' <= c && c <= 'Z' { + out[i] += 'a' - 'A' + } + } + return string(out) +} + +// VerifyHostname returns nil if c is a valid certificate for the named host. +// Otherwise it returns an error describing the mismatch. +func (c *Certificate) VerifyHostname(h string) error { + // IP addresses may be written in [ ]. + candidateIP := h + if len(h) >= 3 && h[0] == '[' && h[len(h)-1] == ']' { + candidateIP = h[1 : len(h)-1] + } + if ip := net.ParseIP(candidateIP); ip != nil { + // We only match IP addresses against IP SANs. + // https://tools.ietf.org/html/rfc6125#appendix-B.2 + for _, candidate := range c.IPAddresses { + if ip.Equal(candidate) { + return nil + } + } + return HostnameError{c, candidateIP} + } + + lowered := toLowerCaseASCII(h) + + if c.hasSANExtension() { + for _, match := range c.DNSNames { + if matchHostnames(toLowerCaseASCII(match), lowered) { + return nil + } + } + // If Subject Alt Name is given, we ignore the common name. + } else if matchHostnames(toLowerCaseASCII(c.Subject.CommonName), lowered) { + return nil + } + + return HostnameError{c, h} +} diff --git a/vendor/github.com/google/certificate-transparency-go/x509/x509.go b/vendor/github.com/google/certificate-transparency-go/x509/x509.go new file mode 100644 index 0000000000000..387bc432bffe3 --- /dev/null +++ b/vendor/github.com/google/certificate-transparency-go/x509/x509.go @@ -0,0 +1,3054 @@ +// Copyright 2009 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// Package x509 parses X.509-encoded keys and certificates. +// +// On UNIX systems the environment variables SSL_CERT_FILE and SSL_CERT_DIR +// can be used to override the system default locations for the SSL certificate +// file and SSL certificate files directory, respectively. +// +// This is a fork of the Go library crypto/x509 package, primarily adapted for +// use with Certificate Transparency. Main areas of difference are: +// +// - Life as a fork: +// - Rename OS-specific cgo code so it doesn't clash with main Go library. +// - Use local library imports (asn1, pkix) throughout. +// - Add version-specific wrappers for Go version-incompatible code (in +// nilref_*_darwin.go, ptr_*_windows.go). +// - Laxer certificate parsing: +// - Add options to disable various validation checks (times, EKUs etc). +// - Use NonFatalErrors type for some errors and continue parsing; this +// can be checked with IsFatal(err). +// - Support for short bitlength ECDSA curves (in curves.go). +// - Certificate Transparency specific function: +// - Parsing and marshaling of SCTList extension. +// - RemoveSCTList() function for rebuilding CT leaf entry. +// - Pre-certificate processing (RemoveCTPoison(), BuildPrecertTBS(), +// ParseTBSCertificate(), IsPrecertificate()). +// - Revocation list processing: +// - Detailed CRL parsing (in revoked.go) +// - Detailed error recording mechanism (in error.go, errors.go) +// - Factor out parseDistributionPoints() for reuse. +// - Factor out and generalize GeneralNames parsing (in names.go) +// - Fix CRL commenting. +// - RPKI support: +// - Support for SubjectInfoAccess extension +// - Support for RFC3779 extensions (in rpki.go) +// - General improvements: +// - Export and use OID values throughout. +// - Export OIDFromNamedCurve(). +// - Export SignatureAlgorithmFromAI(). +// - Add OID value to UnhandledCriticalExtension error. +// - Minor typo/lint fixes. +package x509 + +import ( + "bytes" + "crypto" + "crypto/dsa" + "crypto/ecdsa" + "crypto/elliptic" + "crypto/rsa" + _ "crypto/sha1" + _ "crypto/sha256" + _ "crypto/sha512" + "encoding/pem" + "errors" + "fmt" + "io" + "math/big" + "net" + "net/url" + "strconv" + "strings" + "time" + "unicode/utf8" + + cryptobyte_asn1 "golang.org/x/crypto/cryptobyte/asn1" + + "github.com/google/certificate-transparency-go/asn1" + "github.com/google/certificate-transparency-go/tls" + "github.com/google/certificate-transparency-go/x509/pkix" + "golang.org/x/crypto/cryptobyte" +) + +// pkixPublicKey reflects a PKIX public key structure. See SubjectPublicKeyInfo +// in RFC 3280. +type pkixPublicKey struct { + Algo pkix.AlgorithmIdentifier + BitString asn1.BitString +} + +// ParsePKIXPublicKey parses a DER encoded public key. These values are +// typically found in PEM blocks with "BEGIN PUBLIC KEY". +// +// Supported key types include RSA, DSA, and ECDSA. Unknown key +// types result in an error. +// +// On success, pub will be of type *rsa.PublicKey, *dsa.PublicKey, +// or *ecdsa.PublicKey. +func ParsePKIXPublicKey(derBytes []byte) (pub interface{}, err error) { + var pki publicKeyInfo + if rest, err := asn1.Unmarshal(derBytes, &pki); err != nil { + return nil, err + } else if len(rest) != 0 { + return nil, errors.New("x509: trailing data after ASN.1 of public-key") + } + algo := getPublicKeyAlgorithmFromOID(pki.Algorithm.Algorithm) + if algo == UnknownPublicKeyAlgorithm { + return nil, errors.New("x509: unknown public key algorithm") + } + var nfe NonFatalErrors + pub, err = parsePublicKey(algo, &pki, &nfe) + if err != nil { + return pub, err + } + // Treat non-fatal errors as fatal for this entrypoint. + if len(nfe.Errors) > 0 { + return nil, nfe.Errors[0] + } + return pub, nil +} + +func marshalPublicKey(pub interface{}) (publicKeyBytes []byte, publicKeyAlgorithm pkix.AlgorithmIdentifier, err error) { + switch pub := pub.(type) { + case *rsa.PublicKey: + publicKeyBytes, err = asn1.Marshal(pkcs1PublicKey{ + N: pub.N, + E: pub.E, + }) + if err != nil { + return nil, pkix.AlgorithmIdentifier{}, err + } + publicKeyAlgorithm.Algorithm = OIDPublicKeyRSA + // This is a NULL parameters value which is required by + // https://tools.ietf.org/html/rfc3279#section-2.3.1. + publicKeyAlgorithm.Parameters = asn1.NullRawValue + case *ecdsa.PublicKey: + publicKeyBytes = elliptic.Marshal(pub.Curve, pub.X, pub.Y) + oid, ok := OIDFromNamedCurve(pub.Curve) + if !ok { + return nil, pkix.AlgorithmIdentifier{}, errors.New("x509: unsupported elliptic curve") + } + publicKeyAlgorithm.Algorithm = OIDPublicKeyECDSA + var paramBytes []byte + paramBytes, err = asn1.Marshal(oid) + if err != nil { + return + } + publicKeyAlgorithm.Parameters.FullBytes = paramBytes + default: + return nil, pkix.AlgorithmIdentifier{}, errors.New("x509: only RSA and ECDSA public keys supported") + } + + return publicKeyBytes, publicKeyAlgorithm, nil +} + +// MarshalPKIXPublicKey serialises a public key to DER-encoded PKIX format. +func MarshalPKIXPublicKey(pub interface{}) ([]byte, error) { + var publicKeyBytes []byte + var publicKeyAlgorithm pkix.AlgorithmIdentifier + var err error + + if publicKeyBytes, publicKeyAlgorithm, err = marshalPublicKey(pub); err != nil { + return nil, err + } + + pkix := pkixPublicKey{ + Algo: publicKeyAlgorithm, + BitString: asn1.BitString{ + Bytes: publicKeyBytes, + BitLength: 8 * len(publicKeyBytes), + }, + } + + ret, _ := asn1.Marshal(pkix) + return ret, nil +} + +// These structures reflect the ASN.1 structure of X.509 certificates.: + +type certificate struct { + Raw asn1.RawContent + TBSCertificate tbsCertificate + SignatureAlgorithm pkix.AlgorithmIdentifier + SignatureValue asn1.BitString +} + +type tbsCertificate struct { + Raw asn1.RawContent + Version int `asn1:"optional,explicit,default:0,tag:0"` + SerialNumber *big.Int + SignatureAlgorithm pkix.AlgorithmIdentifier + Issuer asn1.RawValue + Validity validity + Subject asn1.RawValue + PublicKey publicKeyInfo + UniqueId asn1.BitString `asn1:"optional,tag:1"` + SubjectUniqueId asn1.BitString `asn1:"optional,tag:2"` + Extensions []pkix.Extension `asn1:"optional,explicit,tag:3"` +} + +type dsaAlgorithmParameters struct { + P, Q, G *big.Int +} + +type dsaSignature struct { + R, S *big.Int +} + +type ecdsaSignature dsaSignature + +type validity struct { + NotBefore, NotAfter time.Time +} + +type publicKeyInfo struct { + Raw asn1.RawContent + Algorithm pkix.AlgorithmIdentifier + PublicKey asn1.BitString +} + +// RFC 5280, 4.2.1.1 +type authKeyId struct { + Id []byte `asn1:"optional,tag:0"` +} + +// SignatureAlgorithm indicates the algorithm used to sign a certificate. +type SignatureAlgorithm int + +// SignatureAlgorithm values: +const ( + UnknownSignatureAlgorithm SignatureAlgorithm = iota + MD2WithRSA + MD5WithRSA + SHA1WithRSA + SHA256WithRSA + SHA384WithRSA + SHA512WithRSA + DSAWithSHA1 + DSAWithSHA256 + ECDSAWithSHA1 + ECDSAWithSHA256 + ECDSAWithSHA384 + ECDSAWithSHA512 + SHA256WithRSAPSS + SHA384WithRSAPSS + SHA512WithRSAPSS +) + +func (algo SignatureAlgorithm) isRSAPSS() bool { + switch algo { + case SHA256WithRSAPSS, SHA384WithRSAPSS, SHA512WithRSAPSS: + return true + default: + return false + } +} + +func (algo SignatureAlgorithm) String() string { + for _, details := range signatureAlgorithmDetails { + if details.algo == algo { + return details.name + } + } + return strconv.Itoa(int(algo)) +} + +// PublicKeyAlgorithm indicates the algorithm used for a certificate's public key. +type PublicKeyAlgorithm int + +// PublicKeyAlgorithm values: +const ( + UnknownPublicKeyAlgorithm PublicKeyAlgorithm = iota + RSA + DSA + ECDSA +) + +var publicKeyAlgoName = [...]string{ + RSA: "RSA", + DSA: "DSA", + ECDSA: "ECDSA", +} + +func (algo PublicKeyAlgorithm) String() string { + if 0 < algo && int(algo) < len(publicKeyAlgoName) { + return publicKeyAlgoName[algo] + } + return strconv.Itoa(int(algo)) +} + +// OIDs for signature algorithms +// +// pkcs-1 OBJECT IDENTIFIER ::= { +// iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) 1 } +// +// +// RFC 3279 2.2.1 RSA Signature Algorithms +// +// md2WithRSAEncryption OBJECT IDENTIFIER ::= { pkcs-1 2 } +// +// md5WithRSAEncryption OBJECT IDENTIFIER ::= { pkcs-1 4 } +// +// sha-1WithRSAEncryption OBJECT IDENTIFIER ::= { pkcs-1 5 } +// +// dsaWithSha1 OBJECT IDENTIFIER ::= { +// iso(1) member-body(2) us(840) x9-57(10040) x9cm(4) 3 } +// +// RFC 3279 2.2.3 ECDSA Signature Algorithm +// +// ecdsa-with-SHA1 OBJECT IDENTIFIER ::= { +// iso(1) member-body(2) us(840) ansi-x962(10045) +// signatures(4) ecdsa-with-SHA1(1)} +// +// +// RFC 4055 5 PKCS #1 Version 1.5 +// +// sha256WithRSAEncryption OBJECT IDENTIFIER ::= { pkcs-1 11 } +// +// sha384WithRSAEncryption OBJECT IDENTIFIER ::= { pkcs-1 12 } +// +// sha512WithRSAEncryption OBJECT IDENTIFIER ::= { pkcs-1 13 } +// +// +// RFC 5758 3.1 DSA Signature Algorithms +// +// dsaWithSha256 OBJECT IDENTIFIER ::= { +// joint-iso-ccitt(2) country(16) us(840) organization(1) gov(101) +// csor(3) algorithms(4) id-dsa-with-sha2(3) 2} +// +// RFC 5758 3.2 ECDSA Signature Algorithm +// +// ecdsa-with-SHA256 OBJECT IDENTIFIER ::= { iso(1) member-body(2) +// us(840) ansi-X9-62(10045) signatures(4) ecdsa-with-SHA2(3) 2 } +// +// ecdsa-with-SHA384 OBJECT IDENTIFIER ::= { iso(1) member-body(2) +// us(840) ansi-X9-62(10045) signatures(4) ecdsa-with-SHA2(3) 3 } +// +// ecdsa-with-SHA512 OBJECT IDENTIFIER ::= { iso(1) member-body(2) +// us(840) ansi-X9-62(10045) signatures(4) ecdsa-with-SHA2(3) 4 } + +var ( + oidSignatureMD2WithRSA = asn1.ObjectIdentifier{1, 2, 840, 113549, 1, 1, 2} + oidSignatureMD5WithRSA = asn1.ObjectIdentifier{1, 2, 840, 113549, 1, 1, 4} + oidSignatureSHA1WithRSA = asn1.ObjectIdentifier{1, 2, 840, 113549, 1, 1, 5} + oidSignatureSHA256WithRSA = asn1.ObjectIdentifier{1, 2, 840, 113549, 1, 1, 11} + oidSignatureSHA384WithRSA = asn1.ObjectIdentifier{1, 2, 840, 113549, 1, 1, 12} + oidSignatureSHA512WithRSA = asn1.ObjectIdentifier{1, 2, 840, 113549, 1, 1, 13} + oidSignatureRSAPSS = asn1.ObjectIdentifier{1, 2, 840, 113549, 1, 1, 10} + oidSignatureDSAWithSHA1 = asn1.ObjectIdentifier{1, 2, 840, 10040, 4, 3} + oidSignatureDSAWithSHA256 = asn1.ObjectIdentifier{2, 16, 840, 1, 101, 3, 4, 3, 2} + oidSignatureECDSAWithSHA1 = asn1.ObjectIdentifier{1, 2, 840, 10045, 4, 1} + oidSignatureECDSAWithSHA256 = asn1.ObjectIdentifier{1, 2, 840, 10045, 4, 3, 2} + oidSignatureECDSAWithSHA384 = asn1.ObjectIdentifier{1, 2, 840, 10045, 4, 3, 3} + oidSignatureECDSAWithSHA512 = asn1.ObjectIdentifier{1, 2, 840, 10045, 4, 3, 4} + + oidSHA256 = asn1.ObjectIdentifier{2, 16, 840, 1, 101, 3, 4, 2, 1} + oidSHA384 = asn1.ObjectIdentifier{2, 16, 840, 1, 101, 3, 4, 2, 2} + oidSHA512 = asn1.ObjectIdentifier{2, 16, 840, 1, 101, 3, 4, 2, 3} + + oidMGF1 = asn1.ObjectIdentifier{1, 2, 840, 113549, 1, 1, 8} + + // oidISOSignatureSHA1WithRSA means the same as oidSignatureSHA1WithRSA + // but it's specified by ISO. Microsoft's makecert.exe has been known + // to produce certificates with this OID. + oidISOSignatureSHA1WithRSA = asn1.ObjectIdentifier{1, 3, 14, 3, 2, 29} +) + +var signatureAlgorithmDetails = []struct { + algo SignatureAlgorithm + name string + oid asn1.ObjectIdentifier + pubKeyAlgo PublicKeyAlgorithm + hash crypto.Hash +}{ + {MD2WithRSA, "MD2-RSA", oidSignatureMD2WithRSA, RSA, crypto.Hash(0) /* no value for MD2 */}, + {MD5WithRSA, "MD5-RSA", oidSignatureMD5WithRSA, RSA, crypto.MD5}, + {SHA1WithRSA, "SHA1-RSA", oidSignatureSHA1WithRSA, RSA, crypto.SHA1}, + {SHA1WithRSA, "SHA1-RSA", oidISOSignatureSHA1WithRSA, RSA, crypto.SHA1}, + {SHA256WithRSA, "SHA256-RSA", oidSignatureSHA256WithRSA, RSA, crypto.SHA256}, + {SHA384WithRSA, "SHA384-RSA", oidSignatureSHA384WithRSA, RSA, crypto.SHA384}, + {SHA512WithRSA, "SHA512-RSA", oidSignatureSHA512WithRSA, RSA, crypto.SHA512}, + {SHA256WithRSAPSS, "SHA256-RSAPSS", oidSignatureRSAPSS, RSA, crypto.SHA256}, + {SHA384WithRSAPSS, "SHA384-RSAPSS", oidSignatureRSAPSS, RSA, crypto.SHA384}, + {SHA512WithRSAPSS, "SHA512-RSAPSS", oidSignatureRSAPSS, RSA, crypto.SHA512}, + {DSAWithSHA1, "DSA-SHA1", oidSignatureDSAWithSHA1, DSA, crypto.SHA1}, + {DSAWithSHA256, "DSA-SHA256", oidSignatureDSAWithSHA256, DSA, crypto.SHA256}, + {ECDSAWithSHA1, "ECDSA-SHA1", oidSignatureECDSAWithSHA1, ECDSA, crypto.SHA1}, + {ECDSAWithSHA256, "ECDSA-SHA256", oidSignatureECDSAWithSHA256, ECDSA, crypto.SHA256}, + {ECDSAWithSHA384, "ECDSA-SHA384", oidSignatureECDSAWithSHA384, ECDSA, crypto.SHA384}, + {ECDSAWithSHA512, "ECDSA-SHA512", oidSignatureECDSAWithSHA512, ECDSA, crypto.SHA512}, +} + +// pssParameters reflects the parameters in an AlgorithmIdentifier that +// specifies RSA PSS. See https://tools.ietf.org/html/rfc3447#appendix-A.2.3 +type pssParameters struct { + // The following three fields are not marked as + // optional because the default values specify SHA-1, + // which is no longer suitable for use in signatures. + Hash pkix.AlgorithmIdentifier `asn1:"explicit,tag:0"` + MGF pkix.AlgorithmIdentifier `asn1:"explicit,tag:1"` + SaltLength int `asn1:"explicit,tag:2"` + TrailerField int `asn1:"optional,explicit,tag:3,default:1"` +} + +// rsaPSSParameters returns an asn1.RawValue suitable for use as the Parameters +// in an AlgorithmIdentifier that specifies RSA PSS. +func rsaPSSParameters(hashFunc crypto.Hash) asn1.RawValue { + var hashOID asn1.ObjectIdentifier + + switch hashFunc { + case crypto.SHA256: + hashOID = oidSHA256 + case crypto.SHA384: + hashOID = oidSHA384 + case crypto.SHA512: + hashOID = oidSHA512 + } + + params := pssParameters{ + Hash: pkix.AlgorithmIdentifier{ + Algorithm: hashOID, + Parameters: asn1.NullRawValue, + }, + MGF: pkix.AlgorithmIdentifier{ + Algorithm: oidMGF1, + }, + SaltLength: hashFunc.Size(), + TrailerField: 1, + } + + mgf1Params := pkix.AlgorithmIdentifier{ + Algorithm: hashOID, + Parameters: asn1.NullRawValue, + } + + var err error + params.MGF.Parameters.FullBytes, err = asn1.Marshal(mgf1Params) + if err != nil { + panic(err) + } + + serialized, err := asn1.Marshal(params) + if err != nil { + panic(err) + } + + return asn1.RawValue{FullBytes: serialized} +} + +// SignatureAlgorithmFromAI converts an PKIX algorithm identifier to the +// equivalent local constant. +func SignatureAlgorithmFromAI(ai pkix.AlgorithmIdentifier) SignatureAlgorithm { + if !ai.Algorithm.Equal(oidSignatureRSAPSS) { + for _, details := range signatureAlgorithmDetails { + if ai.Algorithm.Equal(details.oid) { + return details.algo + } + } + return UnknownSignatureAlgorithm + } + + // RSA PSS is special because it encodes important parameters + // in the Parameters. + + var params pssParameters + if _, err := asn1.Unmarshal(ai.Parameters.FullBytes, ¶ms); err != nil { + return UnknownSignatureAlgorithm + } + + var mgf1HashFunc pkix.AlgorithmIdentifier + if _, err := asn1.Unmarshal(params.MGF.Parameters.FullBytes, &mgf1HashFunc); err != nil { + return UnknownSignatureAlgorithm + } + + // PSS is greatly overburdened with options. This code forces + // them into three buckets by requiring that the MGF1 hash + // function always match the message hash function (as + // recommended in + // https://tools.ietf.org/html/rfc3447#section-8.1), that the + // salt length matches the hash length, and that the trailer + // field has the default value. + if !bytes.Equal(params.Hash.Parameters.FullBytes, asn1.NullBytes) || + !params.MGF.Algorithm.Equal(oidMGF1) || + !mgf1HashFunc.Algorithm.Equal(params.Hash.Algorithm) || + !bytes.Equal(mgf1HashFunc.Parameters.FullBytes, asn1.NullBytes) || + params.TrailerField != 1 { + return UnknownSignatureAlgorithm + } + + switch { + case params.Hash.Algorithm.Equal(oidSHA256) && params.SaltLength == 32: + return SHA256WithRSAPSS + case params.Hash.Algorithm.Equal(oidSHA384) && params.SaltLength == 48: + return SHA384WithRSAPSS + case params.Hash.Algorithm.Equal(oidSHA512) && params.SaltLength == 64: + return SHA512WithRSAPSS + } + + return UnknownSignatureAlgorithm +} + +// RFC 3279, 2.3 Public Key Algorithms +// +// pkcs-1 OBJECT IDENTIFIER ::== { iso(1) member-body(2) us(840) +// rsadsi(113549) pkcs(1) 1 } +// +// rsaEncryption OBJECT IDENTIFIER ::== { pkcs1-1 1 } +// +// id-dsa OBJECT IDENTIFIER ::== { iso(1) member-body(2) us(840) +// x9-57(10040) x9cm(4) 1 } +// +// RFC 5480, 2.1.1 Unrestricted Algorithm Identifier and Parameters +// +// id-ecPublicKey OBJECT IDENTIFIER ::= { +// iso(1) member-body(2) us(840) ansi-X9-62(10045) keyType(2) 1 } +var ( + OIDPublicKeyRSA = asn1.ObjectIdentifier{1, 2, 840, 113549, 1, 1, 1} + OIDPublicKeyDSA = asn1.ObjectIdentifier{1, 2, 840, 10040, 4, 1} + OIDPublicKeyECDSA = asn1.ObjectIdentifier{1, 2, 840, 10045, 2, 1} + OIDPublicKeyRSAObsolete = asn1.ObjectIdentifier{2, 5, 8, 1, 1} +) + +func getPublicKeyAlgorithmFromOID(oid asn1.ObjectIdentifier) PublicKeyAlgorithm { + switch { + case oid.Equal(OIDPublicKeyRSA): + return RSA + case oid.Equal(OIDPublicKeyDSA): + return DSA + case oid.Equal(OIDPublicKeyECDSA): + return ECDSA + } + return UnknownPublicKeyAlgorithm +} + +// RFC 5480, 2.1.1.1. Named Curve +// +// secp224r1 OBJECT IDENTIFIER ::= { +// iso(1) identified-organization(3) certicom(132) curve(0) 33 } +// +// secp256r1 OBJECT IDENTIFIER ::= { +// iso(1) member-body(2) us(840) ansi-X9-62(10045) curves(3) +// prime(1) 7 } +// +// secp384r1 OBJECT IDENTIFIER ::= { +// iso(1) identified-organization(3) certicom(132) curve(0) 34 } +// +// secp521r1 OBJECT IDENTIFIER ::= { +// iso(1) identified-organization(3) certicom(132) curve(0) 35 } +// +// secp192r1 OBJECT IDENTIFIER ::= { +// iso(1) member-body(2) us(840) ansi-X9-62(10045) curves(3) +// prime(1) 1 } +// +// NB: secp256r1 is equivalent to prime256v1, +// secp192r1 is equivalent to ansix9p192r and prime192v1 +var ( + OIDNamedCurveP224 = asn1.ObjectIdentifier{1, 3, 132, 0, 33} + OIDNamedCurveP256 = asn1.ObjectIdentifier{1, 2, 840, 10045, 3, 1, 7} + OIDNamedCurveP384 = asn1.ObjectIdentifier{1, 3, 132, 0, 34} + OIDNamedCurveP521 = asn1.ObjectIdentifier{1, 3, 132, 0, 35} + OIDNamedCurveP192 = asn1.ObjectIdentifier{1, 2, 840, 10045, 3, 1, 1} +) + +func namedCurveFromOID(oid asn1.ObjectIdentifier, nfe *NonFatalErrors) elliptic.Curve { + switch { + case oid.Equal(OIDNamedCurveP224): + return elliptic.P224() + case oid.Equal(OIDNamedCurveP256): + return elliptic.P256() + case oid.Equal(OIDNamedCurveP384): + return elliptic.P384() + case oid.Equal(OIDNamedCurveP521): + return elliptic.P521() + case oid.Equal(OIDNamedCurveP192): + nfe.AddError(errors.New("insecure curve (secp192r1) specified")) + return secp192r1() + } + return nil +} + +// OIDFromNamedCurve returns the OID used to specify the use of the given +// elliptic curve. +func OIDFromNamedCurve(curve elliptic.Curve) (asn1.ObjectIdentifier, bool) { + switch curve { + case elliptic.P224(): + return OIDNamedCurveP224, true + case elliptic.P256(): + return OIDNamedCurveP256, true + case elliptic.P384(): + return OIDNamedCurveP384, true + case elliptic.P521(): + return OIDNamedCurveP521, true + case secp192r1(): + return OIDNamedCurveP192, true + } + + return nil, false +} + +// KeyUsage represents the set of actions that are valid for a given key. It's +// a bitmap of the KeyUsage* constants. +type KeyUsage int + +// KeyUsage values: +const ( + KeyUsageDigitalSignature KeyUsage = 1 << iota + KeyUsageContentCommitment + KeyUsageKeyEncipherment + KeyUsageDataEncipherment + KeyUsageKeyAgreement + KeyUsageCertSign + KeyUsageCRLSign + KeyUsageEncipherOnly + KeyUsageDecipherOnly +) + +// RFC 5280, 4.2.1.12 Extended Key Usage +// +// anyExtendedKeyUsage OBJECT IDENTIFIER ::= { id-ce-extKeyUsage 0 } +// +// id-kp OBJECT IDENTIFIER ::= { id-pkix 3 } +// +// id-kp-serverAuth OBJECT IDENTIFIER ::= { id-kp 1 } +// id-kp-clientAuth OBJECT IDENTIFIER ::= { id-kp 2 } +// id-kp-codeSigning OBJECT IDENTIFIER ::= { id-kp 3 } +// id-kp-emailProtection OBJECT IDENTIFIER ::= { id-kp 4 } +// id-kp-timeStamping OBJECT IDENTIFIER ::= { id-kp 8 } +// id-kp-OCSPSigning OBJECT IDENTIFIER ::= { id-kp 9 } +var ( + oidExtKeyUsageAny = asn1.ObjectIdentifier{2, 5, 29, 37, 0} + oidExtKeyUsageServerAuth = asn1.ObjectIdentifier{1, 3, 6, 1, 5, 5, 7, 3, 1} + oidExtKeyUsageClientAuth = asn1.ObjectIdentifier{1, 3, 6, 1, 5, 5, 7, 3, 2} + oidExtKeyUsageCodeSigning = asn1.ObjectIdentifier{1, 3, 6, 1, 5, 5, 7, 3, 3} + oidExtKeyUsageEmailProtection = asn1.ObjectIdentifier{1, 3, 6, 1, 5, 5, 7, 3, 4} + oidExtKeyUsageIPSECEndSystem = asn1.ObjectIdentifier{1, 3, 6, 1, 5, 5, 7, 3, 5} + oidExtKeyUsageIPSECTunnel = asn1.ObjectIdentifier{1, 3, 6, 1, 5, 5, 7, 3, 6} + oidExtKeyUsageIPSECUser = asn1.ObjectIdentifier{1, 3, 6, 1, 5, 5, 7, 3, 7} + oidExtKeyUsageTimeStamping = asn1.ObjectIdentifier{1, 3, 6, 1, 5, 5, 7, 3, 8} + oidExtKeyUsageOCSPSigning = asn1.ObjectIdentifier{1, 3, 6, 1, 5, 5, 7, 3, 9} + oidExtKeyUsageMicrosoftServerGatedCrypto = asn1.ObjectIdentifier{1, 3, 6, 1, 4, 1, 311, 10, 3, 3} + oidExtKeyUsageNetscapeServerGatedCrypto = asn1.ObjectIdentifier{2, 16, 840, 1, 113730, 4, 1} + oidExtKeyUsageMicrosoftCommercialCodeSigning = asn1.ObjectIdentifier{1, 3, 6, 1, 4, 1, 311, 2, 1, 22} + oidExtKeyUsageMicrosoftKernelCodeSigning = asn1.ObjectIdentifier{1, 3, 6, 1, 4, 1, 311, 61, 1, 1} + // RFC 6962 s3.1 + oidExtKeyUsageCertificateTransparency = asn1.ObjectIdentifier{1, 3, 6, 1, 4, 1, 11129, 2, 4, 4} +) + +// ExtKeyUsage represents an extended set of actions that are valid for a given key. +// Each of the ExtKeyUsage* constants define a unique action. +type ExtKeyUsage int + +// ExtKeyUsage values: +const ( + ExtKeyUsageAny ExtKeyUsage = iota + ExtKeyUsageServerAuth + ExtKeyUsageClientAuth + ExtKeyUsageCodeSigning + ExtKeyUsageEmailProtection + ExtKeyUsageIPSECEndSystem + ExtKeyUsageIPSECTunnel + ExtKeyUsageIPSECUser + ExtKeyUsageTimeStamping + ExtKeyUsageOCSPSigning + ExtKeyUsageMicrosoftServerGatedCrypto + ExtKeyUsageNetscapeServerGatedCrypto + ExtKeyUsageMicrosoftCommercialCodeSigning + ExtKeyUsageMicrosoftKernelCodeSigning + ExtKeyUsageCertificateTransparency +) + +// extKeyUsageOIDs contains the mapping between an ExtKeyUsage and its OID. +var extKeyUsageOIDs = []struct { + extKeyUsage ExtKeyUsage + oid asn1.ObjectIdentifier +}{ + {ExtKeyUsageAny, oidExtKeyUsageAny}, + {ExtKeyUsageServerAuth, oidExtKeyUsageServerAuth}, + {ExtKeyUsageClientAuth, oidExtKeyUsageClientAuth}, + {ExtKeyUsageCodeSigning, oidExtKeyUsageCodeSigning}, + {ExtKeyUsageEmailProtection, oidExtKeyUsageEmailProtection}, + {ExtKeyUsageIPSECEndSystem, oidExtKeyUsageIPSECEndSystem}, + {ExtKeyUsageIPSECTunnel, oidExtKeyUsageIPSECTunnel}, + {ExtKeyUsageIPSECUser, oidExtKeyUsageIPSECUser}, + {ExtKeyUsageTimeStamping, oidExtKeyUsageTimeStamping}, + {ExtKeyUsageOCSPSigning, oidExtKeyUsageOCSPSigning}, + {ExtKeyUsageMicrosoftServerGatedCrypto, oidExtKeyUsageMicrosoftServerGatedCrypto}, + {ExtKeyUsageNetscapeServerGatedCrypto, oidExtKeyUsageNetscapeServerGatedCrypto}, + {ExtKeyUsageMicrosoftCommercialCodeSigning, oidExtKeyUsageMicrosoftCommercialCodeSigning}, + {ExtKeyUsageMicrosoftKernelCodeSigning, oidExtKeyUsageMicrosoftKernelCodeSigning}, + {ExtKeyUsageCertificateTransparency, oidExtKeyUsageCertificateTransparency}, +} + +func extKeyUsageFromOID(oid asn1.ObjectIdentifier) (eku ExtKeyUsage, ok bool) { + for _, pair := range extKeyUsageOIDs { + if oid.Equal(pair.oid) { + return pair.extKeyUsage, true + } + } + return +} + +func oidFromExtKeyUsage(eku ExtKeyUsage) (oid asn1.ObjectIdentifier, ok bool) { + for _, pair := range extKeyUsageOIDs { + if eku == pair.extKeyUsage { + return pair.oid, true + } + } + return +} + +// SerializedSCT represents a single TLS-encoded signed certificate timestamp, from RFC6962 s3.3. +type SerializedSCT struct { + Val []byte `tls:"minlen:1,maxlen:65535"` +} + +// SignedCertificateTimestampList is a list of signed certificate timestamps, from RFC6962 s3.3. +type SignedCertificateTimestampList struct { + SCTList []SerializedSCT `tls:"minlen:1,maxlen:65335"` +} + +// A Certificate represents an X.509 certificate. +type Certificate struct { + Raw []byte // Complete ASN.1 DER content (certificate, signature algorithm and signature). + RawTBSCertificate []byte // Certificate part of raw ASN.1 DER content. + RawSubjectPublicKeyInfo []byte // DER encoded SubjectPublicKeyInfo. + RawSubject []byte // DER encoded Subject + RawIssuer []byte // DER encoded Issuer + + Signature []byte + SignatureAlgorithm SignatureAlgorithm + + PublicKeyAlgorithm PublicKeyAlgorithm + PublicKey interface{} + + Version int + SerialNumber *big.Int + Issuer pkix.Name + Subject pkix.Name + NotBefore, NotAfter time.Time // Validity bounds. + KeyUsage KeyUsage + + // Extensions contains raw X.509 extensions. When parsing certificates, + // this can be used to extract non-critical extensions that are not + // parsed by this package. When marshaling certificates, the Extensions + // field is ignored, see ExtraExtensions. + Extensions []pkix.Extension + + // ExtraExtensions contains extensions to be copied, raw, into any + // marshaled certificates. Values override any extensions that would + // otherwise be produced based on the other fields. The ExtraExtensions + // field is not populated when parsing certificates, see Extensions. + ExtraExtensions []pkix.Extension + + // UnhandledCriticalExtensions contains a list of extension IDs that + // were not (fully) processed when parsing. Verify will fail if this + // slice is non-empty, unless verification is delegated to an OS + // library which understands all the critical extensions. + // + // Users can access these extensions using Extensions and can remove + // elements from this slice if they believe that they have been + // handled. + UnhandledCriticalExtensions []asn1.ObjectIdentifier + + ExtKeyUsage []ExtKeyUsage // Sequence of extended key usages. + UnknownExtKeyUsage []asn1.ObjectIdentifier // Encountered extended key usages unknown to this package. + + // BasicConstraintsValid indicates whether IsCA, MaxPathLen, + // and MaxPathLenZero are valid. + BasicConstraintsValid bool + IsCA bool + + // MaxPathLen and MaxPathLenZero indicate the presence and + // value of the BasicConstraints' "pathLenConstraint". + // + // When parsing a certificate, a positive non-zero MaxPathLen + // means that the field was specified, -1 means it was unset, + // and MaxPathLenZero being true mean that the field was + // explicitly set to zero. The case of MaxPathLen==0 with MaxPathLenZero==false + // should be treated equivalent to -1 (unset). + // + // When generating a certificate, an unset pathLenConstraint + // can be requested with either MaxPathLen == -1 or using the + // zero value for both MaxPathLen and MaxPathLenZero. + MaxPathLen int + // MaxPathLenZero indicates that BasicConstraintsValid==true + // and MaxPathLen==0 should be interpreted as an actual + // maximum path length of zero. Otherwise, that combination is + // interpreted as MaxPathLen not being set. + MaxPathLenZero bool + + SubjectKeyId []byte + AuthorityKeyId []byte + + // RFC 5280, 4.2.2.1 (Authority Information Access) + OCSPServer []string + IssuingCertificateURL []string + + // Subject Information Access + SubjectTimestamps []string + SubjectCARepositories []string + + // Subject Alternate Name values. (Note that these values may not be valid + // if invalid values were contained within a parsed certificate. For + // example, an element of DNSNames may not be a valid DNS domain name.) + DNSNames []string + EmailAddresses []string + IPAddresses []net.IP + URIs []*url.URL + + // Name constraints + PermittedDNSDomainsCritical bool // if true then the name constraints are marked critical. + PermittedDNSDomains []string + ExcludedDNSDomains []string + PermittedIPRanges []*net.IPNet + ExcludedIPRanges []*net.IPNet + PermittedEmailAddresses []string + ExcludedEmailAddresses []string + PermittedURIDomains []string + ExcludedURIDomains []string + + // CRL Distribution Points + CRLDistributionPoints []string + + PolicyIdentifiers []asn1.ObjectIdentifier + + RPKIAddressRanges []*IPAddressFamilyBlocks + RPKIASNumbers, RPKIRoutingDomainIDs *ASIdentifiers + + // Certificate Transparency SCT extension contents; this is a TLS-encoded + // SignedCertificateTimestampList (RFC 6962 s3.3). + RawSCT []byte + SCTList SignedCertificateTimestampList +} + +// ErrUnsupportedAlgorithm results from attempting to perform an operation that +// involves algorithms that are not currently implemented. +var ErrUnsupportedAlgorithm = errors.New("x509: cannot verify signature: algorithm unimplemented") + +// InsecureAlgorithmError results when the signature algorithm for a certificate +// is known to be insecure. +type InsecureAlgorithmError SignatureAlgorithm + +func (e InsecureAlgorithmError) Error() string { + return fmt.Sprintf("x509: cannot verify signature: insecure algorithm %v", SignatureAlgorithm(e)) +} + +// ConstraintViolationError results when a requested usage is not permitted by +// a certificate. For example: checking a signature when the public key isn't a +// certificate signing key. +type ConstraintViolationError struct{} + +func (ConstraintViolationError) Error() string { + return "x509: invalid signature: parent certificate cannot sign this kind of certificate" +} + +// Equal indicates whether two Certificate objects are equal (by comparing their +// DER-encoded values). +func (c *Certificate) Equal(other *Certificate) bool { + return bytes.Equal(c.Raw, other.Raw) +} + +// IsPrecertificate checks whether the certificate is a precertificate, by +// checking for the presence of the CT Poison extension. +func (c *Certificate) IsPrecertificate() bool { + if c == nil { + return false + } + for _, ext := range c.Extensions { + if ext.Id.Equal(OIDExtensionCTPoison) { + return true + } + } + return false +} + +func (c *Certificate) hasSANExtension() bool { + return oidInExtensions(OIDExtensionSubjectAltName, c.Extensions) +} + +// Entrust have a broken root certificate (CN=Entrust.net Certification +// Authority (2048)) which isn't marked as a CA certificate and is thus invalid +// according to PKIX. +// We recognise this certificate by its SubjectPublicKeyInfo and exempt it +// from the Basic Constraints requirement. +// See http://www.entrust.net/knowledge-base/technote.cfm?tn=7869 +// +// TODO(agl): remove this hack once their reissued root is sufficiently +// widespread. +var entrustBrokenSPKI = []byte{ + 0x30, 0x82, 0x01, 0x22, 0x30, 0x0d, 0x06, 0x09, + 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, + 0x01, 0x05, 0x00, 0x03, 0x82, 0x01, 0x0f, 0x00, + 0x30, 0x82, 0x01, 0x0a, 0x02, 0x82, 0x01, 0x01, + 0x00, 0x97, 0xa3, 0x2d, 0x3c, 0x9e, 0xde, 0x05, + 0xda, 0x13, 0xc2, 0x11, 0x8d, 0x9d, 0x8e, 0xe3, + 0x7f, 0xc7, 0x4b, 0x7e, 0x5a, 0x9f, 0xb3, 0xff, + 0x62, 0xab, 0x73, 0xc8, 0x28, 0x6b, 0xba, 0x10, + 0x64, 0x82, 0x87, 0x13, 0xcd, 0x57, 0x18, 0xff, + 0x28, 0xce, 0xc0, 0xe6, 0x0e, 0x06, 0x91, 0x50, + 0x29, 0x83, 0xd1, 0xf2, 0xc3, 0x2a, 0xdb, 0xd8, + 0xdb, 0x4e, 0x04, 0xcc, 0x00, 0xeb, 0x8b, 0xb6, + 0x96, 0xdc, 0xbc, 0xaa, 0xfa, 0x52, 0x77, 0x04, + 0xc1, 0xdb, 0x19, 0xe4, 0xae, 0x9c, 0xfd, 0x3c, + 0x8b, 0x03, 0xef, 0x4d, 0xbc, 0x1a, 0x03, 0x65, + 0xf9, 0xc1, 0xb1, 0x3f, 0x72, 0x86, 0xf2, 0x38, + 0xaa, 0x19, 0xae, 0x10, 0x88, 0x78, 0x28, 0xda, + 0x75, 0xc3, 0x3d, 0x02, 0x82, 0x02, 0x9c, 0xb9, + 0xc1, 0x65, 0x77, 0x76, 0x24, 0x4c, 0x98, 0xf7, + 0x6d, 0x31, 0x38, 0xfb, 0xdb, 0xfe, 0xdb, 0x37, + 0x02, 0x76, 0xa1, 0x18, 0x97, 0xa6, 0xcc, 0xde, + 0x20, 0x09, 0x49, 0x36, 0x24, 0x69, 0x42, 0xf6, + 0xe4, 0x37, 0x62, 0xf1, 0x59, 0x6d, 0xa9, 0x3c, + 0xed, 0x34, 0x9c, 0xa3, 0x8e, 0xdb, 0xdc, 0x3a, + 0xd7, 0xf7, 0x0a, 0x6f, 0xef, 0x2e, 0xd8, 0xd5, + 0x93, 0x5a, 0x7a, 0xed, 0x08, 0x49, 0x68, 0xe2, + 0x41, 0xe3, 0x5a, 0x90, 0xc1, 0x86, 0x55, 0xfc, + 0x51, 0x43, 0x9d, 0xe0, 0xb2, 0xc4, 0x67, 0xb4, + 0xcb, 0x32, 0x31, 0x25, 0xf0, 0x54, 0x9f, 0x4b, + 0xd1, 0x6f, 0xdb, 0xd4, 0xdd, 0xfc, 0xaf, 0x5e, + 0x6c, 0x78, 0x90, 0x95, 0xde, 0xca, 0x3a, 0x48, + 0xb9, 0x79, 0x3c, 0x9b, 0x19, 0xd6, 0x75, 0x05, + 0xa0, 0xf9, 0x88, 0xd7, 0xc1, 0xe8, 0xa5, 0x09, + 0xe4, 0x1a, 0x15, 0xdc, 0x87, 0x23, 0xaa, 0xb2, + 0x75, 0x8c, 0x63, 0x25, 0x87, 0xd8, 0xf8, 0x3d, + 0xa6, 0xc2, 0xcc, 0x66, 0xff, 0xa5, 0x66, 0x68, + 0x55, 0x02, 0x03, 0x01, 0x00, 0x01, +} + +// CheckSignatureFrom verifies that the signature on c is a valid signature +// from parent. +func (c *Certificate) CheckSignatureFrom(parent *Certificate) error { + // RFC 5280, 4.2.1.9: + // "If the basic constraints extension is not present in a version 3 + // certificate, or the extension is present but the cA boolean is not + // asserted, then the certified public key MUST NOT be used to verify + // certificate signatures." + // (except for Entrust, see comment above entrustBrokenSPKI) + if (parent.Version == 3 && !parent.BasicConstraintsValid || + parent.BasicConstraintsValid && !parent.IsCA) && + !bytes.Equal(c.RawSubjectPublicKeyInfo, entrustBrokenSPKI) { + return ConstraintViolationError{} + } + + if parent.KeyUsage != 0 && parent.KeyUsage&KeyUsageCertSign == 0 { + return ConstraintViolationError{} + } + + if parent.PublicKeyAlgorithm == UnknownPublicKeyAlgorithm { + return ErrUnsupportedAlgorithm + } + + // TODO(agl): don't ignore the path length constraint. + + return parent.CheckSignature(c.SignatureAlgorithm, c.RawTBSCertificate, c.Signature) +} + +// CheckSignature verifies that signature is a valid signature over signed from +// c's public key. +func (c *Certificate) CheckSignature(algo SignatureAlgorithm, signed, signature []byte) error { + return checkSignature(algo, signed, signature, c.PublicKey) +} + +func (c *Certificate) hasNameConstraints() bool { + for _, e := range c.Extensions { + if len(e.Id) == 4 && e.Id[0] == OIDExtensionNameConstraints[0] && e.Id[1] == OIDExtensionNameConstraints[1] && e.Id[2] == OIDExtensionNameConstraints[2] && e.Id[3] == OIDExtensionNameConstraints[3] { + return true + } + } + + return false +} + +func (c *Certificate) getSANExtension() ([]byte, bool) { + for _, e := range c.Extensions { + if len(e.Id) == 4 && e.Id[0] == OIDExtensionSubjectAltName[0] && e.Id[1] == OIDExtensionSubjectAltName[1] && e.Id[2] == OIDExtensionSubjectAltName[2] && e.Id[3] == OIDExtensionSubjectAltName[3] { + return e.Value, true + } + } + + return nil, false +} + +func signaturePublicKeyAlgoMismatchError(expectedPubKeyAlgo PublicKeyAlgorithm, pubKey interface{}) error { + return fmt.Errorf("x509: signature algorithm specifies an %s public key, but have public key of type %T", expectedPubKeyAlgo.String(), pubKey) +} + +// CheckSignature verifies that signature is a valid signature over signed from +// a crypto.PublicKey. +func checkSignature(algo SignatureAlgorithm, signed, signature []byte, publicKey crypto.PublicKey) (err error) { + var hashType crypto.Hash + var pubKeyAlgo PublicKeyAlgorithm + + for _, details := range signatureAlgorithmDetails { + if details.algo == algo { + hashType = details.hash + pubKeyAlgo = details.pubKeyAlgo + } + } + + switch hashType { + case crypto.Hash(0): + return ErrUnsupportedAlgorithm + case crypto.MD5: + return InsecureAlgorithmError(algo) + } + + if !hashType.Available() { + return ErrUnsupportedAlgorithm + } + h := hashType.New() + + h.Write(signed) + digest := h.Sum(nil) + + switch pub := publicKey.(type) { + case *rsa.PublicKey: + if pubKeyAlgo != RSA { + return signaturePublicKeyAlgoMismatchError(pubKeyAlgo, pub) + } + if algo.isRSAPSS() { + return rsa.VerifyPSS(pub, hashType, digest, signature, &rsa.PSSOptions{SaltLength: rsa.PSSSaltLengthEqualsHash}) + } else { + return rsa.VerifyPKCS1v15(pub, hashType, digest, signature) + } + case *dsa.PublicKey: + if pubKeyAlgo != DSA { + return signaturePublicKeyAlgoMismatchError(pubKeyAlgo, pub) + } + dsaSig := new(dsaSignature) + if rest, err := asn1.Unmarshal(signature, dsaSig); err != nil { + return err + } else if len(rest) != 0 { + return errors.New("x509: trailing data after DSA signature") + } + if dsaSig.R.Sign() <= 0 || dsaSig.S.Sign() <= 0 { + return errors.New("x509: DSA signature contained zero or negative values") + } + if !dsa.Verify(pub, digest, dsaSig.R, dsaSig.S) { + return errors.New("x509: DSA verification failure") + } + return + case *ecdsa.PublicKey: + if pubKeyAlgo != ECDSA { + return signaturePublicKeyAlgoMismatchError(pubKeyAlgo, pub) + } + ecdsaSig := new(ecdsaSignature) + if rest, err := asn1.Unmarshal(signature, ecdsaSig); err != nil { + return err + } else if len(rest) != 0 { + return errors.New("x509: trailing data after ECDSA signature") + } + if ecdsaSig.R.Sign() <= 0 || ecdsaSig.S.Sign() <= 0 { + return errors.New("x509: ECDSA signature contained zero or negative values") + } + if !ecdsa.Verify(pub, digest, ecdsaSig.R, ecdsaSig.S) { + return errors.New("x509: ECDSA verification failure") + } + return + } + return ErrUnsupportedAlgorithm +} + +// CheckCRLSignature checks that the signature in crl is from c. +func (c *Certificate) CheckCRLSignature(crl *pkix.CertificateList) error { + algo := SignatureAlgorithmFromAI(crl.SignatureAlgorithm) + return c.CheckSignature(algo, crl.TBSCertList.Raw, crl.SignatureValue.RightAlign()) +} + +// UnhandledCriticalExtension results when the certificate contains an extension +// that is marked as critical but which is not handled by this library. +type UnhandledCriticalExtension struct { + ID asn1.ObjectIdentifier +} + +func (h UnhandledCriticalExtension) Error() string { + return fmt.Sprintf("x509: unhandled critical extension (%v)", h.ID) +} + +// removeExtension takes a DER-encoded TBSCertificate, removes the extension +// specified by oid (preserving the order of other extensions), and returns the +// result still as a DER-encoded TBSCertificate. This function will fail if +// there is not exactly 1 extension of the type specified by the oid present. +func removeExtension(tbsData []byte, oid asn1.ObjectIdentifier) ([]byte, error) { + var tbs tbsCertificate + rest, err := asn1.Unmarshal(tbsData, &tbs) + if err != nil { + return nil, fmt.Errorf("failed to parse TBSCertificate: %v", err) + } else if rLen := len(rest); rLen > 0 { + return nil, fmt.Errorf("trailing data (%d bytes) after TBSCertificate", rLen) + } + extAt := -1 + for i, ext := range tbs.Extensions { + if ext.Id.Equal(oid) { + if extAt != -1 { + return nil, errors.New("multiple extensions of specified type present") + } + extAt = i + } + } + if extAt == -1 { + return nil, errors.New("no extension of specified type present") + } + tbs.Extensions = append(tbs.Extensions[:extAt], tbs.Extensions[extAt+1:]...) + // Clear out the asn1.RawContent so the re-marshal operation sees the + // updated structure (rather than just copying the out-of-date DER data). + tbs.Raw = nil + + data, err := asn1.Marshal(tbs) + if err != nil { + return nil, fmt.Errorf("failed to re-marshal TBSCertificate: %v", err) + } + return data, nil +} + +// RemoveSCTList takes a DER-encoded TBSCertificate and removes the CT SCT +// extension that contains the SCT list (preserving the order of other +// extensions), and returns the result still as a DER-encoded TBSCertificate. +// This function will fail if there is not exactly 1 CT SCT extension present. +func RemoveSCTList(tbsData []byte) ([]byte, error) { + return removeExtension(tbsData, OIDExtensionCTSCT) +} + +// RemoveCTPoison takes a DER-encoded TBSCertificate and removes the CT poison +// extension (preserving the order of other extensions), and returns the result +// still as a DER-encoded TBSCertificate. This function will fail if there is +// not exactly 1 CT poison extension present. +func RemoveCTPoison(tbsData []byte) ([]byte, error) { + return BuildPrecertTBS(tbsData, nil) +} + +// BuildPrecertTBS builds a Certificate Transparency pre-certificate (RFC 6962 +// s3.1) from the given DER-encoded TBSCertificate, returning a DER-encoded +// TBSCertificate. +// +// This function removes the CT poison extension (there must be exactly 1 of +// these), preserving the order of other extensions. +// +// If preIssuer is provided, this should be a special intermediate certificate +// that was used to sign the precert (indicated by having the special +// CertificateTransparency extended key usage). In this case, the issuance +// information of the pre-cert is updated to reflect the next issuer in the +// chain, i.e. the issuer of this special intermediate: +// - The precert's Issuer is changed to the Issuer of the intermediate +// - The precert's AuthorityKeyId is changed to the AuthorityKeyId of the +// intermediate. +func BuildPrecertTBS(tbsData []byte, preIssuer *Certificate) ([]byte, error) { + data, err := removeExtension(tbsData, OIDExtensionCTPoison) + if err != nil { + return nil, err + } + + var tbs tbsCertificate + rest, err := asn1.Unmarshal(data, &tbs) + if err != nil { + return nil, fmt.Errorf("failed to parse TBSCertificate: %v", err) + } else if rLen := len(rest); rLen > 0 { + return nil, fmt.Errorf("trailing data (%d bytes) after TBSCertificate", rLen) + } + + if preIssuer != nil { + // Update the precert's Issuer field. Use the RawIssuer rather than the + // parsed Issuer to avoid any chance of ASN.1 differences (e.g. switching + // from UTF8String to PrintableString). + tbs.Issuer.FullBytes = preIssuer.RawIssuer + + // Also need to update the cert's AuthorityKeyID extension + // to that of the preIssuer. + var issuerKeyID []byte + for _, ext := range preIssuer.Extensions { + if ext.Id.Equal(OIDExtensionAuthorityKeyId) { + issuerKeyID = ext.Value + break + } + } + + // Check the preIssuer has the CT EKU. + seenCTEKU := false + for _, eku := range preIssuer.ExtKeyUsage { + if eku == ExtKeyUsageCertificateTransparency { + seenCTEKU = true + break + } + } + if !seenCTEKU { + return nil, fmt.Errorf("issuer does not have CertificateTransparency extended key usage") + } + + keyAt := -1 + for i, ext := range tbs.Extensions { + if ext.Id.Equal(OIDExtensionAuthorityKeyId) { + keyAt = i + break + } + } + if keyAt >= 0 { + // PreCert has an auth-key-id; replace it with the value from the preIssuer + if issuerKeyID != nil { + tbs.Extensions[keyAt].Value = issuerKeyID + } else { + tbs.Extensions = append(tbs.Extensions[:keyAt], tbs.Extensions[keyAt+1:]...) + } + } else if issuerKeyID != nil { + // PreCert did not have an auth-key-id, but the preIssuer does, so add it at the end. + authKeyIDExt := pkix.Extension{ + Id: OIDExtensionAuthorityKeyId, + Critical: false, + Value: issuerKeyID, + } + tbs.Extensions = append(tbs.Extensions, authKeyIDExt) + } + + // Clear out the asn1.RawContent so the re-marshal operation sees the + // updated structure (rather than just copying the out-of-date DER data). + tbs.Raw = nil + } + + data, err = asn1.Marshal(tbs) + if err != nil { + return nil, fmt.Errorf("failed to re-marshal TBSCertificate: %v", err) + } + return data, nil +} + +type basicConstraints struct { + IsCA bool `asn1:"optional"` + MaxPathLen int `asn1:"optional,default:-1"` +} + +// RFC 5280, 4.2.1.4 +type policyInformation struct { + Policy asn1.ObjectIdentifier + // policyQualifiers omitted +} + +const ( + nameTypeEmail = 1 + nameTypeDNS = 2 + nameTypeURI = 6 + nameTypeIP = 7 +) + +// RFC 5280, 4.2.2.1 +type accessDescription struct { + Method asn1.ObjectIdentifier + Location asn1.RawValue +} + +// RFC 5280, 4.2.1.14 +type distributionPoint struct { + DistributionPoint distributionPointName `asn1:"optional,tag:0"` + Reason asn1.BitString `asn1:"optional,tag:1"` + CRLIssuer asn1.RawValue `asn1:"optional,tag:2"` +} + +type distributionPointName struct { + FullName []asn1.RawValue `asn1:"optional,tag:0"` + RelativeName pkix.RDNSequence `asn1:"optional,tag:1"` +} + +func parsePublicKey(algo PublicKeyAlgorithm, keyData *publicKeyInfo, nfe *NonFatalErrors) (interface{}, error) { + asn1Data := keyData.PublicKey.RightAlign() + switch algo { + case RSA: + // RSA public keys must have a NULL in the parameters + // (https://tools.ietf.org/html/rfc3279#section-2.3.1). + if !bytes.Equal(keyData.Algorithm.Parameters.FullBytes, asn1.NullBytes) { + nfe.AddError(errors.New("x509: RSA key missing NULL parameters")) + } + + p := new(pkcs1PublicKey) + rest, err := asn1.Unmarshal(asn1Data, p) + if err != nil { + return nil, err + } + if len(rest) != 0 { + return nil, errors.New("x509: trailing data after RSA public key") + } + + if p.N.Sign() <= 0 { + return nil, errors.New("x509: RSA modulus is not a positive number") + } + if p.E <= 0 { + return nil, errors.New("x509: RSA public exponent is not a positive number") + } + + pub := &rsa.PublicKey{ + E: p.E, + N: p.N, + } + return pub, nil + case DSA: + var p *big.Int + rest, err := asn1.Unmarshal(asn1Data, &p) + if err != nil { + return nil, err + } + if len(rest) != 0 { + return nil, errors.New("x509: trailing data after DSA public key") + } + paramsData := keyData.Algorithm.Parameters.FullBytes + params := new(dsaAlgorithmParameters) + rest, err = asn1.Unmarshal(paramsData, params) + if err != nil { + return nil, err + } + if len(rest) != 0 { + return nil, errors.New("x509: trailing data after DSA parameters") + } + if p.Sign() <= 0 || params.P.Sign() <= 0 || params.Q.Sign() <= 0 || params.G.Sign() <= 0 { + return nil, errors.New("x509: zero or negative DSA parameter") + } + pub := &dsa.PublicKey{ + Parameters: dsa.Parameters{ + P: params.P, + Q: params.Q, + G: params.G, + }, + Y: p, + } + return pub, nil + case ECDSA: + paramsData := keyData.Algorithm.Parameters.FullBytes + namedCurveOID := new(asn1.ObjectIdentifier) + rest, err := asn1.Unmarshal(paramsData, namedCurveOID) + if err != nil { + return nil, err + } + if len(rest) != 0 { + return nil, errors.New("x509: trailing data after ECDSA parameters") + } + namedCurve := namedCurveFromOID(*namedCurveOID, nfe) + if namedCurve == nil { + return nil, fmt.Errorf("x509: unsupported elliptic curve %v", namedCurveOID) + } + x, y := elliptic.Unmarshal(namedCurve, asn1Data) + if x == nil { + return nil, errors.New("x509: failed to unmarshal elliptic curve point") + } + pub := &ecdsa.PublicKey{ + Curve: namedCurve, + X: x, + Y: y, + } + return pub, nil + default: + return nil, nil + } +} + +// NonFatalErrors is an error type which can hold a number of other errors. +// It's used to collect a range of non-fatal errors which occur while parsing +// a certificate, that way we can still match on certs which technically are +// invalid. +type NonFatalErrors struct { + Errors []error +} + +// AddError adds an error to the list of errors contained by NonFatalErrors. +func (e *NonFatalErrors) AddError(err error) { + e.Errors = append(e.Errors, err) +} + +// Returns a string consisting of the values of Error() from all of the errors +// contained in |e| +func (e NonFatalErrors) Error() string { + r := "NonFatalErrors: " + for _, err := range e.Errors { + r += err.Error() + "; " + } + return r +} + +// HasError returns true if |e| contains at least one error +func (e *NonFatalErrors) HasError() bool { + return len(e.Errors) > 0 +} + +// IsFatal indicates whether an error is fatal. +func IsFatal(err error) bool { + if err == nil { + return false + } + if _, ok := err.(NonFatalErrors); ok { + return false + } + if errs, ok := err.(*Errors); ok { + return errs.Fatal() + } + return true +} + +func parseDistributionPoints(data []byte, crldp *[]string) error { + // CRLDistributionPoints ::= SEQUENCE SIZE (1..MAX) OF DistributionPoint + // + // DistributionPoint ::= SEQUENCE { + // distributionPoint [0] DistributionPointName OPTIONAL, + // reasons [1] ReasonFlags OPTIONAL, + // cRLIssuer [2] GeneralNames OPTIONAL } + // + // DistributionPointName ::= CHOICE { + // fullName [0] GeneralNames, + // nameRelativeToCRLIssuer [1] RelativeDistinguishedName } + + var cdp []distributionPoint + if rest, err := asn1.Unmarshal(data, &cdp); err != nil { + return err + } else if len(rest) != 0 { + return errors.New("x509: trailing data after X.509 CRL distribution point") + } + + for _, dp := range cdp { + // Per RFC 5280, 4.2.1.13, one of distributionPoint or cRLIssuer may be empty. + if len(dp.DistributionPoint.FullName) == 0 { + continue + } + + for _, fullName := range dp.DistributionPoint.FullName { + if fullName.Tag == 6 { + *crldp = append(*crldp, string(fullName.Bytes)) + } + } + } + return nil +} + +func forEachSAN(extension []byte, callback func(tag int, data []byte) error) error { + // RFC 5280, 4.2.1.6 + + // SubjectAltName ::= GeneralNames + // + // GeneralNames ::= SEQUENCE SIZE (1..MAX) OF GeneralName + // + // GeneralName ::= CHOICE { + // otherName [0] OtherName, + // rfc822Name [1] IA5String, + // dNSName [2] IA5String, + // x400Address [3] ORAddress, + // directoryName [4] Name, + // ediPartyName [5] EDIPartyName, + // uniformResourceIdentifier [6] IA5String, + // iPAddress [7] OCTET STRING, + // registeredID [8] OBJECT IDENTIFIER } + var seq asn1.RawValue + rest, err := asn1.Unmarshal(extension, &seq) + if err != nil { + return err + } else if len(rest) != 0 { + return errors.New("x509: trailing data after X.509 extension") + } + if !seq.IsCompound || seq.Tag != asn1.TagSequence || seq.Class != asn1.ClassUniversal { + return asn1.StructuralError{Msg: "bad SAN sequence"} + } + + rest = seq.Bytes + for len(rest) > 0 { + var v asn1.RawValue + rest, err = asn1.Unmarshal(rest, &v) + if err != nil { + return err + } + + if err := callback(v.Tag, v.Bytes); err != nil { + return err + } + } + + return nil +} + +func parseSANExtension(value []byte, nfe *NonFatalErrors) (dnsNames, emailAddresses []string, ipAddresses []net.IP, uris []*url.URL, err error) { + err = forEachSAN(value, func(tag int, data []byte) error { + switch tag { + case nameTypeEmail: + emailAddresses = append(emailAddresses, string(data)) + case nameTypeDNS: + dnsNames = append(dnsNames, string(data)) + case nameTypeURI: + uri, err := url.Parse(string(data)) + if err != nil { + return fmt.Errorf("x509: cannot parse URI %q: %s", string(data), err) + } + if len(uri.Host) > 0 { + if _, ok := domainToReverseLabels(uri.Host); !ok { + return fmt.Errorf("x509: cannot parse URI %q: invalid domain", string(data)) + } + } + uris = append(uris, uri) + case nameTypeIP: + switch len(data) { + case net.IPv4len, net.IPv6len: + ipAddresses = append(ipAddresses, data) + default: + nfe.AddError(errors.New("x509: cannot parse IP address of length " + strconv.Itoa(len(data)))) + } + } + + return nil + }) + + return +} + +// isValidIPMask returns true iff mask consists of zero or more 1 bits, followed by zero bits. +func isValidIPMask(mask []byte) bool { + seenZero := false + + for _, b := range mask { + if seenZero { + if b != 0 { + return false + } + + continue + } + + switch b { + case 0x00, 0x80, 0xc0, 0xe0, 0xf0, 0xf8, 0xfc, 0xfe: + seenZero = true + case 0xff: + default: + return false + } + } + + return true +} + +func parseNameConstraintsExtension(out *Certificate, e pkix.Extension, nfe *NonFatalErrors) (unhandled bool, err error) { + // RFC 5280, 4.2.1.10 + + // NameConstraints ::= SEQUENCE { + // permittedSubtrees [0] GeneralSubtrees OPTIONAL, + // excludedSubtrees [1] GeneralSubtrees OPTIONAL } + // + // GeneralSubtrees ::= SEQUENCE SIZE (1..MAX) OF GeneralSubtree + // + // GeneralSubtree ::= SEQUENCE { + // base GeneralName, + // minimum [0] BaseDistance DEFAULT 0, + // maximum [1] BaseDistance OPTIONAL } + // + // BaseDistance ::= INTEGER (0..MAX) + + outer := cryptobyte.String(e.Value) + var toplevel, permitted, excluded cryptobyte.String + var havePermitted, haveExcluded bool + if !outer.ReadASN1(&toplevel, cryptobyte_asn1.SEQUENCE) || + !outer.Empty() || + !toplevel.ReadOptionalASN1(&permitted, &havePermitted, cryptobyte_asn1.Tag(0).ContextSpecific().Constructed()) || + !toplevel.ReadOptionalASN1(&excluded, &haveExcluded, cryptobyte_asn1.Tag(1).ContextSpecific().Constructed()) || + !toplevel.Empty() { + return false, errors.New("x509: invalid NameConstraints extension") + } + + if !havePermitted && !haveExcluded || len(permitted) == 0 && len(excluded) == 0 { + // https://tools.ietf.org/html/rfc5280#section-4.2.1.10: + // “either the permittedSubtrees field + // or the excludedSubtrees MUST be + // present” + return false, errors.New("x509: empty name constraints extension") + } + + getValues := func(subtrees cryptobyte.String) (dnsNames []string, ips []*net.IPNet, emails, uriDomains []string, err error) { + for !subtrees.Empty() { + var seq, value cryptobyte.String + var tag cryptobyte_asn1.Tag + if !subtrees.ReadASN1(&seq, cryptobyte_asn1.SEQUENCE) || + !seq.ReadAnyASN1(&value, &tag) { + return nil, nil, nil, nil, fmt.Errorf("x509: invalid NameConstraints extension") + } + + var ( + dnsTag = cryptobyte_asn1.Tag(2).ContextSpecific() + emailTag = cryptobyte_asn1.Tag(1).ContextSpecific() + ipTag = cryptobyte_asn1.Tag(7).ContextSpecific() + uriTag = cryptobyte_asn1.Tag(6).ContextSpecific() + ) + + switch tag { + case dnsTag: + domain := string(value) + if err := isIA5String(domain); err != nil { + return nil, nil, nil, nil, errors.New("x509: invalid constraint value: " + err.Error()) + } + + trimmedDomain := domain + if len(trimmedDomain) > 0 && trimmedDomain[0] == '.' { + // constraints can have a leading + // period to exclude the domain + // itself, but that's not valid in a + // normal domain name. + trimmedDomain = trimmedDomain[1:] + } + if _, ok := domainToReverseLabels(trimmedDomain); !ok { + nfe.AddError(fmt.Errorf("x509: failed to parse dnsName constraint %q", domain)) + } + dnsNames = append(dnsNames, domain) + + case ipTag: + l := len(value) + var ip, mask []byte + + switch l { + case 8: + ip = value[:4] + mask = value[4:] + + case 32: + ip = value[:16] + mask = value[16:] + + default: + return nil, nil, nil, nil, fmt.Errorf("x509: IP constraint contained value of length %d", l) + } + + if !isValidIPMask(mask) { + return nil, nil, nil, nil, fmt.Errorf("x509: IP constraint contained invalid mask %x", mask) + } + + ips = append(ips, &net.IPNet{IP: net.IP(ip), Mask: net.IPMask(mask)}) + + case emailTag: + constraint := string(value) + if err := isIA5String(constraint); err != nil { + return nil, nil, nil, nil, errors.New("x509: invalid constraint value: " + err.Error()) + } + + // If the constraint contains an @ then + // it specifies an exact mailbox name. + if strings.Contains(constraint, "@") { + if _, ok := parseRFC2821Mailbox(constraint); !ok { + nfe.AddError(fmt.Errorf("x509: failed to parse rfc822Name constraint %q", constraint)) + } + } else { + // Otherwise it's a domain name. + domain := constraint + if len(domain) > 0 && domain[0] == '.' { + domain = domain[1:] + } + if _, ok := domainToReverseLabels(domain); !ok { + nfe.AddError(fmt.Errorf("x509: failed to parse rfc822Name constraint %q", constraint)) + } + } + emails = append(emails, constraint) + + case uriTag: + domain := string(value) + if err := isIA5String(domain); err != nil { + return nil, nil, nil, nil, errors.New("x509: invalid constraint value: " + err.Error()) + } + + if net.ParseIP(domain) != nil { + return nil, nil, nil, nil, fmt.Errorf("x509: failed to parse URI constraint %q: cannot be IP address", domain) + } + + trimmedDomain := domain + if len(trimmedDomain) > 0 && trimmedDomain[0] == '.' { + // constraints can have a leading + // period to exclude the domain itself, + // but that's not valid in a normal + // domain name. + trimmedDomain = trimmedDomain[1:] + } + if _, ok := domainToReverseLabels(trimmedDomain); !ok { + nfe.AddError(fmt.Errorf("x509: failed to parse URI constraint %q", domain)) + } + uriDomains = append(uriDomains, domain) + + default: + unhandled = true + } + } + + return dnsNames, ips, emails, uriDomains, nil + } + + if out.PermittedDNSDomains, out.PermittedIPRanges, out.PermittedEmailAddresses, out.PermittedURIDomains, err = getValues(permitted); err != nil { + return false, err + } + if out.ExcludedDNSDomains, out.ExcludedIPRanges, out.ExcludedEmailAddresses, out.ExcludedURIDomains, err = getValues(excluded); err != nil { + return false, err + } + out.PermittedDNSDomainsCritical = e.Critical + + return unhandled, nil +} + +func parseCertificate(in *certificate) (*Certificate, error) { + var nfe NonFatalErrors + + out := new(Certificate) + out.Raw = in.Raw + out.RawTBSCertificate = in.TBSCertificate.Raw + out.RawSubjectPublicKeyInfo = in.TBSCertificate.PublicKey.Raw + out.RawSubject = in.TBSCertificate.Subject.FullBytes + out.RawIssuer = in.TBSCertificate.Issuer.FullBytes + + out.Signature = in.SignatureValue.RightAlign() + out.SignatureAlgorithm = SignatureAlgorithmFromAI(in.TBSCertificate.SignatureAlgorithm) + + out.PublicKeyAlgorithm = + getPublicKeyAlgorithmFromOID(in.TBSCertificate.PublicKey.Algorithm.Algorithm) + var err error + out.PublicKey, err = parsePublicKey(out.PublicKeyAlgorithm, &in.TBSCertificate.PublicKey, &nfe) + if err != nil { + return nil, err + } + + out.Version = in.TBSCertificate.Version + 1 + out.SerialNumber = in.TBSCertificate.SerialNumber + + var issuer, subject pkix.RDNSequence + if rest, err := asn1.Unmarshal(in.TBSCertificate.Subject.FullBytes, &subject); err != nil { + return nil, err + } else if len(rest) != 0 { + return nil, errors.New("x509: trailing data after X.509 subject") + } + if rest, err := asn1.Unmarshal(in.TBSCertificate.Issuer.FullBytes, &issuer); err != nil { + return nil, err + } else if len(rest) != 0 { + return nil, errors.New("x509: trailing data after X.509 subject") + } + + out.Issuer.FillFromRDNSequence(&issuer) + out.Subject.FillFromRDNSequence(&subject) + + out.NotBefore = in.TBSCertificate.Validity.NotBefore + out.NotAfter = in.TBSCertificate.Validity.NotAfter + + for _, e := range in.TBSCertificate.Extensions { + out.Extensions = append(out.Extensions, e) + unhandled := false + + if len(e.Id) == 4 && e.Id[0] == OIDExtensionArc[0] && e.Id[1] == OIDExtensionArc[1] && e.Id[2] == OIDExtensionArc[2] { + switch e.Id[3] { + case OIDExtensionKeyUsage[3]: + // RFC 5280, 4.2.1.3 + var usageBits asn1.BitString + if rest, err := asn1.Unmarshal(e.Value, &usageBits); err != nil { + return nil, err + } else if len(rest) != 0 { + return nil, errors.New("x509: trailing data after X.509 KeyUsage") + } + + var usage int + for i := 0; i < 9; i++ { + if usageBits.At(i) != 0 { + usage |= 1 << uint(i) + } + } + out.KeyUsage = KeyUsage(usage) + + case OIDExtensionBasicConstraints[3]: + // RFC 5280, 4.2.1.9 + var constraints basicConstraints + if rest, err := asn1.Unmarshal(e.Value, &constraints); err != nil { + return nil, err + } else if len(rest) != 0 { + return nil, errors.New("x509: trailing data after X.509 BasicConstraints") + } + + out.BasicConstraintsValid = true + out.IsCA = constraints.IsCA + out.MaxPathLen = constraints.MaxPathLen + out.MaxPathLenZero = out.MaxPathLen == 0 + // TODO: map out.MaxPathLen to 0 if it has the -1 default value? (Issue 19285) + + case OIDExtensionSubjectAltName[3]: + out.DNSNames, out.EmailAddresses, out.IPAddresses, out.URIs, err = parseSANExtension(e.Value, &nfe) + if err != nil { + return nil, err + } + + if len(out.DNSNames) == 0 && len(out.EmailAddresses) == 0 && len(out.IPAddresses) == 0 && len(out.URIs) == 0 { + // If we didn't parse anything then we do the critical check, below. + unhandled = true + } + + case OIDExtensionNameConstraints[3]: + unhandled, err = parseNameConstraintsExtension(out, e, &nfe) + if err != nil { + return nil, err + } + + case OIDExtensionCRLDistributionPoints[3]: + // RFC 5280, 4.2.1.13 + if err := parseDistributionPoints(e.Value, &out.CRLDistributionPoints); err != nil { + return nil, err + } + + case OIDExtensionAuthorityKeyId[3]: + // RFC 5280, 4.2.1.1 + var a authKeyId + if rest, err := asn1.Unmarshal(e.Value, &a); err != nil { + return nil, err + } else if len(rest) != 0 { + return nil, errors.New("x509: trailing data after X.509 authority key-id") + } + out.AuthorityKeyId = a.Id + + case OIDExtensionExtendedKeyUsage[3]: + // RFC 5280, 4.2.1.12. Extended Key Usage + + // id-ce-extKeyUsage OBJECT IDENTIFIER ::= { id-ce 37 } + // + // ExtKeyUsageSyntax ::= SEQUENCE SIZE (1..MAX) OF KeyPurposeId + // + // KeyPurposeId ::= OBJECT IDENTIFIER + + var keyUsage []asn1.ObjectIdentifier + if len(e.Value) == 0 { + nfe.AddError(errors.New("x509: empty ExtendedKeyUsage")) + } else { + if rest, err := asn1.Unmarshal(e.Value, &keyUsage); err != nil { + return nil, err + } else if len(rest) != 0 { + return nil, errors.New("x509: trailing data after X.509 ExtendedKeyUsage") + } + } + + for _, u := range keyUsage { + if extKeyUsage, ok := extKeyUsageFromOID(u); ok { + out.ExtKeyUsage = append(out.ExtKeyUsage, extKeyUsage) + } else { + out.UnknownExtKeyUsage = append(out.UnknownExtKeyUsage, u) + } + } + + case OIDExtensionSubjectKeyId[3]: + // RFC 5280, 4.2.1.2 + var keyid []byte + if rest, err := asn1.Unmarshal(e.Value, &keyid); err != nil { + return nil, err + } else if len(rest) != 0 { + return nil, errors.New("x509: trailing data after X.509 key-id") + } + out.SubjectKeyId = keyid + + case OIDExtensionCertificatePolicies[3]: + // RFC 5280 4.2.1.4: Certificate Policies + var policies []policyInformation + if rest, err := asn1.Unmarshal(e.Value, &policies); err != nil { + return nil, err + } else if len(rest) != 0 { + return nil, errors.New("x509: trailing data after X.509 certificate policies") + } + out.PolicyIdentifiers = make([]asn1.ObjectIdentifier, len(policies)) + for i, policy := range policies { + out.PolicyIdentifiers[i] = policy.Policy + } + + default: + // Unknown extensions are recorded if critical. + unhandled = true + } + } else if e.Id.Equal(OIDExtensionAuthorityInfoAccess) { + // RFC 5280 4.2.2.1: Authority Information Access + var aia []accessDescription + if rest, err := asn1.Unmarshal(e.Value, &aia); err != nil { + return nil, err + } else if len(rest) != 0 { + return nil, errors.New("x509: trailing data after X.509 authority information") + } + if len(aia) == 0 { + nfe.AddError(errors.New("x509: empty AuthorityInfoAccess extension")) + } + + for _, v := range aia { + // GeneralName: uniformResourceIdentifier [6] IA5String + if v.Location.Tag != 6 { + continue + } + if v.Method.Equal(OIDAuthorityInfoAccessOCSP) { + out.OCSPServer = append(out.OCSPServer, string(v.Location.Bytes)) + } else if v.Method.Equal(OIDAuthorityInfoAccessIssuers) { + out.IssuingCertificateURL = append(out.IssuingCertificateURL, string(v.Location.Bytes)) + } + } + } else if e.Id.Equal(OIDExtensionSubjectInfoAccess) { + // RFC 5280 4.2.2.2: Subject Information Access + var sia []accessDescription + if rest, err := asn1.Unmarshal(e.Value, &sia); err != nil { + return nil, err + } else if len(rest) != 0 { + return nil, errors.New("x509: trailing data after X.509 subject information") + } + if len(sia) == 0 { + nfe.AddError(errors.New("x509: empty SubjectInfoAccess extension")) + } + + for _, v := range sia { + // TODO(drysdale): cope with non-URI types of GeneralName + // GeneralName: uniformResourceIdentifier [6] IA5String + if v.Location.Tag != 6 { + continue + } + if v.Method.Equal(OIDSubjectInfoAccessTimestamp) { + out.SubjectTimestamps = append(out.SubjectTimestamps, string(v.Location.Bytes)) + } else if v.Method.Equal(OIDSubjectInfoAccessCARepo) { + out.SubjectCARepositories = append(out.SubjectCARepositories, string(v.Location.Bytes)) + } + } + } else if e.Id.Equal(OIDExtensionIPPrefixList) { + out.RPKIAddressRanges = parseRPKIAddrBlocks(e.Value, &nfe) + } else if e.Id.Equal(OIDExtensionASList) { + out.RPKIASNumbers, out.RPKIRoutingDomainIDs = parseRPKIASIdentifiers(e.Value, &nfe) + } else if e.Id.Equal(OIDExtensionCTSCT) { + if rest, err := asn1.Unmarshal(e.Value, &out.RawSCT); err != nil { + nfe.AddError(fmt.Errorf("failed to asn1.Unmarshal SCT list extension: %v", err)) + } else if len(rest) != 0 { + nfe.AddError(errors.New("trailing data after ASN1-encoded SCT list")) + } else { + if rest, err := tls.Unmarshal(out.RawSCT, &out.SCTList); err != nil { + nfe.AddError(fmt.Errorf("failed to tls.Unmarshal SCT list: %v", err)) + } else if len(rest) != 0 { + nfe.AddError(errors.New("trailing data after TLS-encoded SCT list")) + } + } + } else { + // Unknown extensions are recorded if critical. + unhandled = true + } + + if e.Critical && unhandled { + out.UnhandledCriticalExtensions = append(out.UnhandledCriticalExtensions, e.Id) + } + } + if nfe.HasError() { + return out, nfe + } + return out, nil +} + +// ParseTBSCertificate parses a single TBSCertificate from the given ASN.1 DER data. +// The parsed data is returned in a Certificate struct for ease of access. +func ParseTBSCertificate(asn1Data []byte) (*Certificate, error) { + var tbsCert tbsCertificate + rest, err := asn1.Unmarshal(asn1Data, &tbsCert) + if err != nil { + return nil, err + } + if len(rest) > 0 { + return nil, asn1.SyntaxError{Msg: "trailing data"} + } + return parseCertificate(&certificate{ + Raw: tbsCert.Raw, + TBSCertificate: tbsCert}) +} + +// ParseCertificate parses a single certificate from the given ASN.1 DER data. +// This function can return both a Certificate and an error (in which case the +// error will be of type NonFatalErrors). +func ParseCertificate(asn1Data []byte) (*Certificate, error) { + var cert certificate + rest, err := asn1.Unmarshal(asn1Data, &cert) + if err != nil { + return nil, err + } + if len(rest) > 0 { + return nil, asn1.SyntaxError{Msg: "trailing data"} + } + + return parseCertificate(&cert) +} + +// ParseCertificates parses one or more certificates from the given ASN.1 DER +// data. The certificates must be concatenated with no intermediate padding. +// This function can return both a slice of Certificate and an error (in which +// case the error will be of type NonFatalErrors). +func ParseCertificates(asn1Data []byte) ([]*Certificate, error) { + var v []*certificate + + for len(asn1Data) > 0 { + cert := new(certificate) + var err error + asn1Data, err = asn1.Unmarshal(asn1Data, cert) + if err != nil { + return nil, err + } + v = append(v, cert) + } + + var nfe NonFatalErrors + ret := make([]*Certificate, len(v)) + for i, ci := range v { + cert, err := parseCertificate(ci) + if err != nil { + if errs, ok := err.(NonFatalErrors); !ok { + return nil, err + } else { + nfe.Errors = append(nfe.Errors, errs.Errors...) + } + } + ret[i] = cert + } + + if nfe.HasError() { + return ret, nfe + } + return ret, nil +} + +func reverseBitsInAByte(in byte) byte { + b1 := in>>4 | in<<4 + b2 := b1>>2&0x33 | b1<<2&0xcc + b3 := b2>>1&0x55 | b2<<1&0xaa + return b3 +} + +// asn1BitLength returns the bit-length of bitString by considering the +// most-significant bit in a byte to be the "first" bit. This convention +// matches ASN.1, but differs from almost everything else. +func asn1BitLength(bitString []byte) int { + bitLen := len(bitString) * 8 + + for i := range bitString { + b := bitString[len(bitString)-i-1] + + for bit := uint(0); bit < 8; bit++ { + if (b>>bit)&1 == 1 { + return bitLen + } + bitLen-- + } + } + + return 0 +} + +// OID values for standard extensions from RFC 5280. +var ( + OIDExtensionArc = asn1.ObjectIdentifier{2, 5, 29} // id-ce RFC5280 s4.2.1 + OIDExtensionSubjectKeyId = asn1.ObjectIdentifier{2, 5, 29, 14} + OIDExtensionKeyUsage = asn1.ObjectIdentifier{2, 5, 29, 15} + OIDExtensionExtendedKeyUsage = asn1.ObjectIdentifier{2, 5, 29, 37} + OIDExtensionAuthorityKeyId = asn1.ObjectIdentifier{2, 5, 29, 35} + OIDExtensionBasicConstraints = asn1.ObjectIdentifier{2, 5, 29, 19} + OIDExtensionSubjectAltName = asn1.ObjectIdentifier{2, 5, 29, 17} + OIDExtensionCertificatePolicies = asn1.ObjectIdentifier{2, 5, 29, 32} + OIDExtensionNameConstraints = asn1.ObjectIdentifier{2, 5, 29, 30} + OIDExtensionCRLDistributionPoints = asn1.ObjectIdentifier{2, 5, 29, 31} + OIDExtensionIssuerAltName = asn1.ObjectIdentifier{2, 5, 29, 18} + OIDExtensionSubjectDirectoryAttributes = asn1.ObjectIdentifier{2, 5, 29, 9} + OIDExtensionInhibitAnyPolicy = asn1.ObjectIdentifier{2, 5, 29, 54} + OIDExtensionPolicyConstraints = asn1.ObjectIdentifier{2, 5, 29, 36} + OIDExtensionPolicyMappings = asn1.ObjectIdentifier{2, 5, 29, 33} + OIDExtensionFreshestCRL = asn1.ObjectIdentifier{2, 5, 29, 46} + + OIDExtensionAuthorityInfoAccess = asn1.ObjectIdentifier{1, 3, 6, 1, 5, 5, 7, 1, 1} + OIDExtensionSubjectInfoAccess = asn1.ObjectIdentifier{1, 3, 6, 1, 5, 5, 7, 1, 11} + + // OIDExtensionCTPoison is defined in RFC 6962 s3.1. + OIDExtensionCTPoison = asn1.ObjectIdentifier{1, 3, 6, 1, 4, 1, 11129, 2, 4, 3} + // OIDExtensionCTSCT is defined in RFC 6962 s3.3. + OIDExtensionCTSCT = asn1.ObjectIdentifier{1, 3, 6, 1, 4, 1, 11129, 2, 4, 2} + // OIDExtensionIPPrefixList is defined in RFC 3779 s2. + OIDExtensionIPPrefixList = asn1.ObjectIdentifier{1, 3, 6, 1, 5, 5, 7, 1, 7} + // OIDExtensionASList is defined in RFC 3779 s3. + OIDExtensionASList = asn1.ObjectIdentifier{1, 3, 6, 1, 5, 5, 7, 1, 8} +) + +var ( + OIDAuthorityInfoAccessOCSP = asn1.ObjectIdentifier{1, 3, 6, 1, 5, 5, 7, 48, 1} + OIDAuthorityInfoAccessIssuers = asn1.ObjectIdentifier{1, 3, 6, 1, 5, 5, 7, 48, 2} + OIDSubjectInfoAccessTimestamp = asn1.ObjectIdentifier{1, 3, 6, 1, 5, 5, 7, 48, 3} + OIDSubjectInfoAccessCARepo = asn1.ObjectIdentifier{1, 3, 6, 1, 5, 5, 7, 48, 5} + OIDAnyPolicy = asn1.ObjectIdentifier{2, 5, 29, 32, 0} +) + +// oidInExtensions returns whether an extension with the given oid exists in +// extensions. +func oidInExtensions(oid asn1.ObjectIdentifier, extensions []pkix.Extension) bool { + for _, e := range extensions { + if e.Id.Equal(oid) { + return true + } + } + return false +} + +// marshalSANs marshals a list of addresses into a the contents of an X.509 +// SubjectAlternativeName extension. +func marshalSANs(dnsNames, emailAddresses []string, ipAddresses []net.IP, uris []*url.URL) (derBytes []byte, err error) { + var rawValues []asn1.RawValue + for _, name := range dnsNames { + rawValues = append(rawValues, asn1.RawValue{Tag: nameTypeDNS, Class: asn1.ClassContextSpecific, Bytes: []byte(name)}) + } + for _, email := range emailAddresses { + rawValues = append(rawValues, asn1.RawValue{Tag: nameTypeEmail, Class: asn1.ClassContextSpecific, Bytes: []byte(email)}) + } + for _, rawIP := range ipAddresses { + // If possible, we always want to encode IPv4 addresses in 4 bytes. + ip := rawIP.To4() + if ip == nil { + ip = rawIP + } + rawValues = append(rawValues, asn1.RawValue{Tag: nameTypeIP, Class: asn1.ClassContextSpecific, Bytes: ip}) + } + for _, uri := range uris { + rawValues = append(rawValues, asn1.RawValue{Tag: nameTypeURI, Class: asn1.ClassContextSpecific, Bytes: []byte(uri.String())}) + } + return asn1.Marshal(rawValues) +} + +func isIA5String(s string) error { + for _, r := range s { + if r >= utf8.RuneSelf { + return fmt.Errorf("x509: %q cannot be encoded as an IA5String", s) + } + } + + return nil +} + +func buildExtensions(template *Certificate, subjectIsEmpty bool, authorityKeyId []byte) (ret []pkix.Extension, err error) { + ret = make([]pkix.Extension, 12 /* maximum number of elements. */) + n := 0 + + if template.KeyUsage != 0 && + !oidInExtensions(OIDExtensionKeyUsage, template.ExtraExtensions) { + ret[n].Id = OIDExtensionKeyUsage + ret[n].Critical = true + + var a [2]byte + a[0] = reverseBitsInAByte(byte(template.KeyUsage)) + a[1] = reverseBitsInAByte(byte(template.KeyUsage >> 8)) + + l := 1 + if a[1] != 0 { + l = 2 + } + + bitString := a[:l] + ret[n].Value, err = asn1.Marshal(asn1.BitString{Bytes: bitString, BitLength: asn1BitLength(bitString)}) + if err != nil { + return + } + n++ + } + + if (len(template.ExtKeyUsage) > 0 || len(template.UnknownExtKeyUsage) > 0) && + !oidInExtensions(OIDExtensionExtendedKeyUsage, template.ExtraExtensions) { + ret[n].Id = OIDExtensionExtendedKeyUsage + + var oids []asn1.ObjectIdentifier + for _, u := range template.ExtKeyUsage { + if oid, ok := oidFromExtKeyUsage(u); ok { + oids = append(oids, oid) + } else { + panic("internal error") + } + } + + oids = append(oids, template.UnknownExtKeyUsage...) + + ret[n].Value, err = asn1.Marshal(oids) + if err != nil { + return + } + n++ + } + + if template.BasicConstraintsValid && !oidInExtensions(OIDExtensionBasicConstraints, template.ExtraExtensions) { + // Leaving MaxPathLen as zero indicates that no maximum path + // length is desired, unless MaxPathLenZero is set. A value of + // -1 causes encoding/asn1 to omit the value as desired. + maxPathLen := template.MaxPathLen + if maxPathLen == 0 && !template.MaxPathLenZero { + maxPathLen = -1 + } + ret[n].Id = OIDExtensionBasicConstraints + ret[n].Value, err = asn1.Marshal(basicConstraints{template.IsCA, maxPathLen}) + ret[n].Critical = true + if err != nil { + return + } + n++ + } + + if len(template.SubjectKeyId) > 0 && !oidInExtensions(OIDExtensionSubjectKeyId, template.ExtraExtensions) { + ret[n].Id = OIDExtensionSubjectKeyId + ret[n].Value, err = asn1.Marshal(template.SubjectKeyId) + if err != nil { + return + } + n++ + } + + if len(authorityKeyId) > 0 && !oidInExtensions(OIDExtensionAuthorityKeyId, template.ExtraExtensions) { + ret[n].Id = OIDExtensionAuthorityKeyId + ret[n].Value, err = asn1.Marshal(authKeyId{authorityKeyId}) + if err != nil { + return + } + n++ + } + + if (len(template.OCSPServer) > 0 || len(template.IssuingCertificateURL) > 0) && + !oidInExtensions(OIDExtensionAuthorityInfoAccess, template.ExtraExtensions) { + ret[n].Id = OIDExtensionAuthorityInfoAccess + var aiaValues []accessDescription + for _, name := range template.OCSPServer { + aiaValues = append(aiaValues, accessDescription{ + Method: OIDAuthorityInfoAccessOCSP, + Location: asn1.RawValue{Tag: 6, Class: asn1.ClassContextSpecific, Bytes: []byte(name)}, + }) + } + for _, name := range template.IssuingCertificateURL { + aiaValues = append(aiaValues, accessDescription{ + Method: OIDAuthorityInfoAccessIssuers, + Location: asn1.RawValue{Tag: 6, Class: asn1.ClassContextSpecific, Bytes: []byte(name)}, + }) + } + ret[n].Value, err = asn1.Marshal(aiaValues) + if err != nil { + return + } + n++ + } + + if len(template.SubjectTimestamps) > 0 || len(template.SubjectCARepositories) > 0 && + !oidInExtensions(OIDExtensionSubjectInfoAccess, template.ExtraExtensions) { + ret[n].Id = OIDExtensionSubjectInfoAccess + var siaValues []accessDescription + for _, ts := range template.SubjectTimestamps { + siaValues = append(siaValues, accessDescription{ + Method: OIDSubjectInfoAccessTimestamp, + Location: asn1.RawValue{Tag: 6, Class: asn1.ClassContextSpecific, Bytes: []byte(ts)}, + }) + } + for _, repo := range template.SubjectCARepositories { + siaValues = append(siaValues, accessDescription{ + Method: OIDSubjectInfoAccessCARepo, + Location: asn1.RawValue{Tag: 6, Class: asn1.ClassContextSpecific, Bytes: []byte(repo)}, + }) + } + ret[n].Value, err = asn1.Marshal(siaValues) + if err != nil { + return + } + n++ + } + + if (len(template.DNSNames) > 0 || len(template.EmailAddresses) > 0 || len(template.IPAddresses) > 0 || len(template.URIs) > 0) && + !oidInExtensions(OIDExtensionSubjectAltName, template.ExtraExtensions) { + ret[n].Id = OIDExtensionSubjectAltName + // https://tools.ietf.org/html/rfc5280#section-4.2.1.6 + // “If the subject field contains an empty sequence ... then + // subjectAltName extension ... is marked as critical” + ret[n].Critical = subjectIsEmpty + ret[n].Value, err = marshalSANs(template.DNSNames, template.EmailAddresses, template.IPAddresses, template.URIs) + if err != nil { + return + } + n++ + } + + if len(template.PolicyIdentifiers) > 0 && + !oidInExtensions(OIDExtensionCertificatePolicies, template.ExtraExtensions) { + ret[n].Id = OIDExtensionCertificatePolicies + policies := make([]policyInformation, len(template.PolicyIdentifiers)) + for i, policy := range template.PolicyIdentifiers { + policies[i].Policy = policy + } + ret[n].Value, err = asn1.Marshal(policies) + if err != nil { + return + } + n++ + } + + if (len(template.PermittedDNSDomains) > 0 || len(template.ExcludedDNSDomains) > 0 || + len(template.PermittedIPRanges) > 0 || len(template.ExcludedIPRanges) > 0 || + len(template.PermittedEmailAddresses) > 0 || len(template.ExcludedEmailAddresses) > 0 || + len(template.PermittedURIDomains) > 0 || len(template.ExcludedURIDomains) > 0) && + !oidInExtensions(OIDExtensionNameConstraints, template.ExtraExtensions) { + ret[n].Id = OIDExtensionNameConstraints + ret[n].Critical = template.PermittedDNSDomainsCritical + + ipAndMask := func(ipNet *net.IPNet) []byte { + maskedIP := ipNet.IP.Mask(ipNet.Mask) + ipAndMask := make([]byte, 0, len(maskedIP)+len(ipNet.Mask)) + ipAndMask = append(ipAndMask, maskedIP...) + ipAndMask = append(ipAndMask, ipNet.Mask...) + return ipAndMask + } + + serialiseConstraints := func(dns []string, ips []*net.IPNet, emails []string, uriDomains []string) (der []byte, err error) { + var b cryptobyte.Builder + + for _, name := range dns { + if err = isIA5String(name); err != nil { + return nil, err + } + + b.AddASN1(cryptobyte_asn1.SEQUENCE, func(b *cryptobyte.Builder) { + b.AddASN1(cryptobyte_asn1.Tag(2).ContextSpecific(), func(b *cryptobyte.Builder) { + b.AddBytes([]byte(name)) + }) + }) + } + + for _, ipNet := range ips { + b.AddASN1(cryptobyte_asn1.SEQUENCE, func(b *cryptobyte.Builder) { + b.AddASN1(cryptobyte_asn1.Tag(7).ContextSpecific(), func(b *cryptobyte.Builder) { + b.AddBytes(ipAndMask(ipNet)) + }) + }) + } + + for _, email := range emails { + if err = isIA5String(email); err != nil { + return nil, err + } + + b.AddASN1(cryptobyte_asn1.SEQUENCE, func(b *cryptobyte.Builder) { + b.AddASN1(cryptobyte_asn1.Tag(1).ContextSpecific(), func(b *cryptobyte.Builder) { + b.AddBytes([]byte(email)) + }) + }) + } + + for _, uriDomain := range uriDomains { + if err = isIA5String(uriDomain); err != nil { + return nil, err + } + + b.AddASN1(cryptobyte_asn1.SEQUENCE, func(b *cryptobyte.Builder) { + b.AddASN1(cryptobyte_asn1.Tag(6).ContextSpecific(), func(b *cryptobyte.Builder) { + b.AddBytes([]byte(uriDomain)) + }) + }) + } + + return b.Bytes() + } + + permitted, err := serialiseConstraints(template.PermittedDNSDomains, template.PermittedIPRanges, template.PermittedEmailAddresses, template.PermittedURIDomains) + if err != nil { + return nil, err + } + + excluded, err := serialiseConstraints(template.ExcludedDNSDomains, template.ExcludedIPRanges, template.ExcludedEmailAddresses, template.ExcludedURIDomains) + if err != nil { + return nil, err + } + + var b cryptobyte.Builder + b.AddASN1(cryptobyte_asn1.SEQUENCE, func(b *cryptobyte.Builder) { + if len(permitted) > 0 { + b.AddASN1(cryptobyte_asn1.Tag(0).ContextSpecific().Constructed(), func(b *cryptobyte.Builder) { + b.AddBytes(permitted) + }) + } + + if len(excluded) > 0 { + b.AddASN1(cryptobyte_asn1.Tag(1).ContextSpecific().Constructed(), func(b *cryptobyte.Builder) { + b.AddBytes(excluded) + }) + } + }) + + ret[n].Value, err = b.Bytes() + if err != nil { + return nil, err + } + n++ + } + + if len(template.CRLDistributionPoints) > 0 && + !oidInExtensions(OIDExtensionCRLDistributionPoints, template.ExtraExtensions) { + ret[n].Id = OIDExtensionCRLDistributionPoints + + var crlDp []distributionPoint + for _, name := range template.CRLDistributionPoints { + dp := distributionPoint{ + DistributionPoint: distributionPointName{ + FullName: []asn1.RawValue{ + asn1.RawValue{Tag: 6, Class: asn1.ClassContextSpecific, Bytes: []byte(name)}, + }, + }, + } + crlDp = append(crlDp, dp) + } + + ret[n].Value, err = asn1.Marshal(crlDp) + if err != nil { + return + } + n++ + } + + if (len(template.RawSCT) > 0 || len(template.SCTList.SCTList) > 0) && !oidInExtensions(OIDExtensionCTSCT, template.ExtraExtensions) { + rawSCT := template.RawSCT + if len(template.SCTList.SCTList) > 0 { + rawSCT, err = tls.Marshal(template.SCTList) + if err != nil { + return + } + } + ret[n].Id = OIDExtensionCTSCT + ret[n].Value, err = asn1.Marshal(rawSCT) + if err != nil { + return + } + n++ + } + + // Adding another extension here? Remember to update the maximum number + // of elements in the make() at the top of the function. + + return append(ret[:n], template.ExtraExtensions...), nil +} + +func subjectBytes(cert *Certificate) ([]byte, error) { + if len(cert.RawSubject) > 0 { + return cert.RawSubject, nil + } + + return asn1.Marshal(cert.Subject.ToRDNSequence()) +} + +// signingParamsForPublicKey returns the parameters to use for signing with +// priv. If requestedSigAlgo is not zero then it overrides the default +// signature algorithm. +func signingParamsForPublicKey(pub interface{}, requestedSigAlgo SignatureAlgorithm) (hashFunc crypto.Hash, sigAlgo pkix.AlgorithmIdentifier, err error) { + var pubType PublicKeyAlgorithm + + switch pub := pub.(type) { + case *rsa.PublicKey: + pubType = RSA + hashFunc = crypto.SHA256 + sigAlgo.Algorithm = oidSignatureSHA256WithRSA + sigAlgo.Parameters = asn1.NullRawValue + + case *ecdsa.PublicKey: + pubType = ECDSA + + switch pub.Curve { + case elliptic.P224(), elliptic.P256(): + hashFunc = crypto.SHA256 + sigAlgo.Algorithm = oidSignatureECDSAWithSHA256 + case elliptic.P384(): + hashFunc = crypto.SHA384 + sigAlgo.Algorithm = oidSignatureECDSAWithSHA384 + case elliptic.P521(): + hashFunc = crypto.SHA512 + sigAlgo.Algorithm = oidSignatureECDSAWithSHA512 + default: + err = errors.New("x509: unknown elliptic curve") + } + + default: + err = errors.New("x509: only RSA and ECDSA keys supported") + } + + if err != nil { + return + } + + if requestedSigAlgo == 0 { + return + } + + found := false + for _, details := range signatureAlgorithmDetails { + if details.algo == requestedSigAlgo { + if details.pubKeyAlgo != pubType { + err = errors.New("x509: requested SignatureAlgorithm does not match private key type") + return + } + sigAlgo.Algorithm, hashFunc = details.oid, details.hash + if hashFunc == 0 { + err = errors.New("x509: cannot sign with hash function requested") + return + } + if requestedSigAlgo.isRSAPSS() { + sigAlgo.Parameters = rsaPSSParameters(hashFunc) + } + found = true + break + } + } + + if !found { + err = errors.New("x509: unknown SignatureAlgorithm") + } + + return +} + +// emptyASN1Subject is the ASN.1 DER encoding of an empty Subject, which is +// just an empty SEQUENCE. +var emptyASN1Subject = []byte{0x30, 0} + +// CreateCertificate creates a new X.509v3 certificate based on a template. +// The following members of template are used: +// - SerialNumber +// - Subject +// - NotBefore, NotAfter +// - SignatureAlgorithm +// - For extensions: +// - KeyUsage +// - ExtKeyUsage +// - BasicConstraintsValid, IsCA, MaxPathLen, MaxPathLenZero +// - SubjectKeyId +// - AuthorityKeyId +// - OCSPServer, IssuingCertificateURL +// - SubjectTimestamps, SubjectCARepositories +// - DNSNames, EmailAddresses, IPAddresses, URIs +// - PolicyIdentifiers +// - ExcludedDNSDomains, ExcludedIPRanges, ExcludedEmailAddresses, ExcludedURIDomains, PermittedDNSDomainsCritical, +// PermittedDNSDomains, PermittedIPRanges, PermittedEmailAddresses, PermittedURIDomains +// - CRLDistributionPoints +// - RawSCT, SCTList +// +// The certificate is signed by parent. If parent is equal to template then the +// certificate is self-signed. The parameter pub is the public key of the +// signee and priv is the private key of the signer. +// +// The returned slice is the certificate in DER encoding. +// +// All keys types that are implemented via crypto.Signer are supported (This +// includes *rsa.PublicKey and *ecdsa.PublicKey.) +// +// The AuthorityKeyId will be taken from the SubjectKeyId of parent, if any, +// unless the resulting certificate is self-signed. Otherwise the value from +// template will be used. +func CreateCertificate(rand io.Reader, template, parent *Certificate, pub, priv interface{}) (cert []byte, err error) { + key, ok := priv.(crypto.Signer) + if !ok { + return nil, errors.New("x509: certificate private key does not implement crypto.Signer") + } + + if template.SerialNumber == nil { + return nil, errors.New("x509: no SerialNumber given") + } + + hashFunc, signatureAlgorithm, err := signingParamsForPublicKey(key.Public(), template.SignatureAlgorithm) + if err != nil { + return nil, err + } + + publicKeyBytes, publicKeyAlgorithm, err := marshalPublicKey(pub) + if err != nil { + return nil, err + } + + asn1Issuer, err := subjectBytes(parent) + if err != nil { + return + } + + asn1Subject, err := subjectBytes(template) + if err != nil { + return + } + + authorityKeyId := template.AuthorityKeyId + if !bytes.Equal(asn1Issuer, asn1Subject) && len(parent.SubjectKeyId) > 0 { + authorityKeyId = parent.SubjectKeyId + } + + extensions, err := buildExtensions(template, bytes.Equal(asn1Subject, emptyASN1Subject), authorityKeyId) + if err != nil { + return + } + + encodedPublicKey := asn1.BitString{BitLength: len(publicKeyBytes) * 8, Bytes: publicKeyBytes} + c := tbsCertificate{ + Version: 2, + SerialNumber: template.SerialNumber, + SignatureAlgorithm: signatureAlgorithm, + Issuer: asn1.RawValue{FullBytes: asn1Issuer}, + Validity: validity{template.NotBefore.UTC(), template.NotAfter.UTC()}, + Subject: asn1.RawValue{FullBytes: asn1Subject}, + PublicKey: publicKeyInfo{nil, publicKeyAlgorithm, encodedPublicKey}, + Extensions: extensions, + } + + tbsCertContents, err := asn1.Marshal(c) + if err != nil { + return + } + + c.Raw = tbsCertContents + + h := hashFunc.New() + h.Write(tbsCertContents) + digest := h.Sum(nil) + + var signerOpts crypto.SignerOpts + signerOpts = hashFunc + if template.SignatureAlgorithm != 0 && template.SignatureAlgorithm.isRSAPSS() { + signerOpts = &rsa.PSSOptions{ + SaltLength: rsa.PSSSaltLengthEqualsHash, + Hash: hashFunc, + } + } + + var signature []byte + signature, err = key.Sign(rand, digest, signerOpts) + if err != nil { + return + } + + return asn1.Marshal(certificate{ + nil, + c, + signatureAlgorithm, + asn1.BitString{Bytes: signature, BitLength: len(signature) * 8}, + }) +} + +// pemCRLPrefix is the magic string that indicates that we have a PEM encoded +// CRL. +var pemCRLPrefix = []byte("-----BEGIN X509 CRL") + +// pemType is the type of a PEM encoded CRL. +var pemType = "X509 CRL" + +// ParseCRL parses a CRL from the given bytes. It's often the case that PEM +// encoded CRLs will appear where they should be DER encoded, so this function +// will transparently handle PEM encoding as long as there isn't any leading +// garbage. +func ParseCRL(crlBytes []byte) (*pkix.CertificateList, error) { + if bytes.HasPrefix(crlBytes, pemCRLPrefix) { + block, _ := pem.Decode(crlBytes) + if block != nil && block.Type == pemType { + crlBytes = block.Bytes + } + } + return ParseDERCRL(crlBytes) +} + +// ParseDERCRL parses a DER encoded CRL from the given bytes. +func ParseDERCRL(derBytes []byte) (*pkix.CertificateList, error) { + certList := new(pkix.CertificateList) + if rest, err := asn1.Unmarshal(derBytes, certList); err != nil { + return nil, err + } else if len(rest) != 0 { + return nil, errors.New("x509: trailing data after CRL") + } + return certList, nil +} + +// CreateCRL returns a DER encoded CRL, signed by this Certificate, that +// contains the given list of revoked certificates. +func (c *Certificate) CreateCRL(rand io.Reader, priv interface{}, revokedCerts []pkix.RevokedCertificate, now, expiry time.Time) (crlBytes []byte, err error) { + key, ok := priv.(crypto.Signer) + if !ok { + return nil, errors.New("x509: certificate private key does not implement crypto.Signer") + } + + hashFunc, signatureAlgorithm, err := signingParamsForPublicKey(key.Public(), 0) + if err != nil { + return nil, err + } + + // Force revocation times to UTC per RFC 5280. + revokedCertsUTC := make([]pkix.RevokedCertificate, len(revokedCerts)) + for i, rc := range revokedCerts { + rc.RevocationTime = rc.RevocationTime.UTC() + revokedCertsUTC[i] = rc + } + + tbsCertList := pkix.TBSCertificateList{ + Version: 1, + Signature: signatureAlgorithm, + Issuer: c.Subject.ToRDNSequence(), + ThisUpdate: now.UTC(), + NextUpdate: expiry.UTC(), + RevokedCertificates: revokedCertsUTC, + } + + // Authority Key Id + if len(c.SubjectKeyId) > 0 { + var aki pkix.Extension + aki.Id = OIDExtensionAuthorityKeyId + aki.Value, err = asn1.Marshal(authKeyId{Id: c.SubjectKeyId}) + if err != nil { + return + } + tbsCertList.Extensions = append(tbsCertList.Extensions, aki) + } + + tbsCertListContents, err := asn1.Marshal(tbsCertList) + if err != nil { + return + } + + h := hashFunc.New() + h.Write(tbsCertListContents) + digest := h.Sum(nil) + + var signature []byte + signature, err = key.Sign(rand, digest, hashFunc) + if err != nil { + return + } + + return asn1.Marshal(pkix.CertificateList{ + TBSCertList: tbsCertList, + SignatureAlgorithm: signatureAlgorithm, + SignatureValue: asn1.BitString{Bytes: signature, BitLength: len(signature) * 8}, + }) +} + +// CertificateRequest represents a PKCS #10, certificate signature request. +type CertificateRequest struct { + Raw []byte // Complete ASN.1 DER content (CSR, signature algorithm and signature). + RawTBSCertificateRequest []byte // Certificate request info part of raw ASN.1 DER content. + RawSubjectPublicKeyInfo []byte // DER encoded SubjectPublicKeyInfo. + RawSubject []byte // DER encoded Subject. + + Version int + Signature []byte + SignatureAlgorithm SignatureAlgorithm + + PublicKeyAlgorithm PublicKeyAlgorithm + PublicKey interface{} + + Subject pkix.Name + + // Attributes is the dried husk of a bug and shouldn't be used. + Attributes []pkix.AttributeTypeAndValueSET + + // Extensions contains raw X.509 extensions. When parsing CSRs, this + // can be used to extract extensions that are not parsed by this + // package. + Extensions []pkix.Extension + + // ExtraExtensions contains extensions to be copied, raw, into any + // marshaled CSR. Values override any extensions that would otherwise + // be produced based on the other fields but are overridden by any + // extensions specified in Attributes. + // + // The ExtraExtensions field is not populated when parsing CSRs, see + // Extensions. + ExtraExtensions []pkix.Extension + + // Subject Alternate Name values. + DNSNames []string + EmailAddresses []string + IPAddresses []net.IP + URIs []*url.URL +} + +// These structures reflect the ASN.1 structure of X.509 certificate +// signature requests (see RFC 2986): + +type tbsCertificateRequest struct { + Raw asn1.RawContent + Version int + Subject asn1.RawValue + PublicKey publicKeyInfo + RawAttributes []asn1.RawValue `asn1:"tag:0"` +} + +type certificateRequest struct { + Raw asn1.RawContent + TBSCSR tbsCertificateRequest + SignatureAlgorithm pkix.AlgorithmIdentifier + SignatureValue asn1.BitString +} + +// oidExtensionRequest is a PKCS#9 OBJECT IDENTIFIER that indicates requested +// extensions in a CSR. +var oidExtensionRequest = asn1.ObjectIdentifier{1, 2, 840, 113549, 1, 9, 14} + +// newRawAttributes converts AttributeTypeAndValueSETs from a template +// CertificateRequest's Attributes into tbsCertificateRequest RawAttributes. +func newRawAttributes(attributes []pkix.AttributeTypeAndValueSET) ([]asn1.RawValue, error) { + var rawAttributes []asn1.RawValue + b, err := asn1.Marshal(attributes) + if err != nil { + return nil, err + } + rest, err := asn1.Unmarshal(b, &rawAttributes) + if err != nil { + return nil, err + } + if len(rest) != 0 { + return nil, errors.New("x509: failed to unmarshal raw CSR Attributes") + } + return rawAttributes, nil +} + +// parseRawAttributes Unmarshals RawAttributes intos AttributeTypeAndValueSETs. +func parseRawAttributes(rawAttributes []asn1.RawValue) []pkix.AttributeTypeAndValueSET { + var attributes []pkix.AttributeTypeAndValueSET + for _, rawAttr := range rawAttributes { + var attr pkix.AttributeTypeAndValueSET + rest, err := asn1.Unmarshal(rawAttr.FullBytes, &attr) + // Ignore attributes that don't parse into pkix.AttributeTypeAndValueSET + // (i.e.: challengePassword or unstructuredName). + if err == nil && len(rest) == 0 { + attributes = append(attributes, attr) + } + } + return attributes +} + +// parseCSRExtensions parses the attributes from a CSR and extracts any +// requested extensions. +func parseCSRExtensions(rawAttributes []asn1.RawValue) ([]pkix.Extension, error) { + // pkcs10Attribute reflects the Attribute structure from section 4.1 of + // https://tools.ietf.org/html/rfc2986. + type pkcs10Attribute struct { + Id asn1.ObjectIdentifier + Values []asn1.RawValue `asn1:"set"` + } + + var ret []pkix.Extension + for _, rawAttr := range rawAttributes { + var attr pkcs10Attribute + if rest, err := asn1.Unmarshal(rawAttr.FullBytes, &attr); err != nil || len(rest) != 0 || len(attr.Values) == 0 { + // Ignore attributes that don't parse. + continue + } + + if !attr.Id.Equal(oidExtensionRequest) { + continue + } + + var extensions []pkix.Extension + if _, err := asn1.Unmarshal(attr.Values[0].FullBytes, &extensions); err != nil { + return nil, err + } + ret = append(ret, extensions...) + } + + return ret, nil +} + +// CreateCertificateRequest creates a new certificate request based on a +// template. The following members of template are used: Attributes, DNSNames, +// EmailAddresses, ExtraExtensions, IPAddresses, URIs, SignatureAlgorithm, and +// Subject. The private key is the private key of the signer. +// +// The returned slice is the certificate request in DER encoding. +// +// All keys types that are implemented via crypto.Signer are supported (This +// includes *rsa.PublicKey and *ecdsa.PublicKey.) +func CreateCertificateRequest(rand io.Reader, template *CertificateRequest, priv interface{}) (csr []byte, err error) { + key, ok := priv.(crypto.Signer) + if !ok { + return nil, errors.New("x509: certificate private key does not implement crypto.Signer") + } + + var hashFunc crypto.Hash + var sigAlgo pkix.AlgorithmIdentifier + hashFunc, sigAlgo, err = signingParamsForPublicKey(key.Public(), template.SignatureAlgorithm) + if err != nil { + return nil, err + } + + var publicKeyBytes []byte + var publicKeyAlgorithm pkix.AlgorithmIdentifier + publicKeyBytes, publicKeyAlgorithm, err = marshalPublicKey(key.Public()) + if err != nil { + return nil, err + } + + var extensions []pkix.Extension + + if (len(template.DNSNames) > 0 || len(template.EmailAddresses) > 0 || len(template.IPAddresses) > 0 || len(template.URIs) > 0) && + !oidInExtensions(OIDExtensionSubjectAltName, template.ExtraExtensions) { + sanBytes, err := marshalSANs(template.DNSNames, template.EmailAddresses, template.IPAddresses, template.URIs) + if err != nil { + return nil, err + } + + extensions = append(extensions, pkix.Extension{ + Id: OIDExtensionSubjectAltName, + Value: sanBytes, + }) + } + + extensions = append(extensions, template.ExtraExtensions...) + + var attributes []pkix.AttributeTypeAndValueSET + attributes = append(attributes, template.Attributes...) + + if len(extensions) > 0 { + // specifiedExtensions contains all the extensions that we + // found specified via template.Attributes. + specifiedExtensions := make(map[string]bool) + + for _, atvSet := range template.Attributes { + if !atvSet.Type.Equal(oidExtensionRequest) { + continue + } + + for _, atvs := range atvSet.Value { + for _, atv := range atvs { + specifiedExtensions[atv.Type.String()] = true + } + } + } + + atvs := make([]pkix.AttributeTypeAndValue, 0, len(extensions)) + for _, e := range extensions { + if specifiedExtensions[e.Id.String()] { + // Attributes already contained a value for + // this extension and it takes priority. + continue + } + + atvs = append(atvs, pkix.AttributeTypeAndValue{ + // There is no place for the critical flag in a CSR. + Type: e.Id, + Value: e.Value, + }) + } + + // Append the extensions to an existing attribute if possible. + appended := false + for _, atvSet := range attributes { + if !atvSet.Type.Equal(oidExtensionRequest) || len(atvSet.Value) == 0 { + continue + } + + atvSet.Value[0] = append(atvSet.Value[0], atvs...) + appended = true + break + } + + // Otherwise, add a new attribute for the extensions. + if !appended { + attributes = append(attributes, pkix.AttributeTypeAndValueSET{ + Type: oidExtensionRequest, + Value: [][]pkix.AttributeTypeAndValue{ + atvs, + }, + }) + } + } + + asn1Subject := template.RawSubject + if len(asn1Subject) == 0 { + asn1Subject, err = asn1.Marshal(template.Subject.ToRDNSequence()) + if err != nil { + return + } + } + + rawAttributes, err := newRawAttributes(attributes) + if err != nil { + return + } + + tbsCSR := tbsCertificateRequest{ + Version: 0, // PKCS #10, RFC 2986 + Subject: asn1.RawValue{FullBytes: asn1Subject}, + PublicKey: publicKeyInfo{ + Algorithm: publicKeyAlgorithm, + PublicKey: asn1.BitString{ + Bytes: publicKeyBytes, + BitLength: len(publicKeyBytes) * 8, + }, + }, + RawAttributes: rawAttributes, + } + + tbsCSRContents, err := asn1.Marshal(tbsCSR) + if err != nil { + return + } + tbsCSR.Raw = tbsCSRContents + + h := hashFunc.New() + h.Write(tbsCSRContents) + digest := h.Sum(nil) + + var signature []byte + signature, err = key.Sign(rand, digest, hashFunc) + if err != nil { + return + } + + return asn1.Marshal(certificateRequest{ + TBSCSR: tbsCSR, + SignatureAlgorithm: sigAlgo, + SignatureValue: asn1.BitString{ + Bytes: signature, + BitLength: len(signature) * 8, + }, + }) +} + +// ParseCertificateRequest parses a single certificate request from the +// given ASN.1 DER data. +func ParseCertificateRequest(asn1Data []byte) (*CertificateRequest, error) { + var csr certificateRequest + + rest, err := asn1.Unmarshal(asn1Data, &csr) + if err != nil { + return nil, err + } else if len(rest) != 0 { + return nil, asn1.SyntaxError{Msg: "trailing data"} + } + + return parseCertificateRequest(&csr) +} + +func parseCertificateRequest(in *certificateRequest) (*CertificateRequest, error) { + out := &CertificateRequest{ + Raw: in.Raw, + RawTBSCertificateRequest: in.TBSCSR.Raw, + RawSubjectPublicKeyInfo: in.TBSCSR.PublicKey.Raw, + RawSubject: in.TBSCSR.Subject.FullBytes, + + Signature: in.SignatureValue.RightAlign(), + SignatureAlgorithm: SignatureAlgorithmFromAI(in.SignatureAlgorithm), + + PublicKeyAlgorithm: getPublicKeyAlgorithmFromOID(in.TBSCSR.PublicKey.Algorithm.Algorithm), + + Version: in.TBSCSR.Version, + Attributes: parseRawAttributes(in.TBSCSR.RawAttributes), + } + + var err error + var nfe NonFatalErrors + out.PublicKey, err = parsePublicKey(out.PublicKeyAlgorithm, &in.TBSCSR.PublicKey, &nfe) + if err != nil { + return nil, err + } + // Treat non-fatal errors as fatal here. + if len(nfe.Errors) > 0 { + return nil, nfe.Errors[0] + } + + var subject pkix.RDNSequence + if rest, err := asn1.Unmarshal(in.TBSCSR.Subject.FullBytes, &subject); err != nil { + return nil, err + } else if len(rest) != 0 { + return nil, errors.New("x509: trailing data after X.509 Subject") + } + + out.Subject.FillFromRDNSequence(&subject) + + if out.Extensions, err = parseCSRExtensions(in.TBSCSR.RawAttributes); err != nil { + return nil, err + } + + for _, extension := range out.Extensions { + if extension.Id.Equal(OIDExtensionSubjectAltName) { + out.DNSNames, out.EmailAddresses, out.IPAddresses, out.URIs, err = parseSANExtension(extension.Value, &nfe) + if err != nil { + return nil, err + } + } + } + + return out, nil +} + +// CheckSignature reports whether the signature on c is valid. +func (c *CertificateRequest) CheckSignature() error { + return checkSignature(c.SignatureAlgorithm, c.RawTBSCertificateRequest, c.Signature, c.PublicKey) +} diff --git a/vendor/github.com/markbates/goth/README.md b/vendor/github.com/markbates/goth/README.md index d3f1088e01d9c..4765bc39204d7 100644 --- a/vendor/github.com/markbates/goth/README.md +++ b/vendor/github.com/markbates/goth/README.md @@ -70,10 +70,12 @@ $ go get github.com/markbates/goth * Uber * VK * Wepay +* WeCom * Xero * Yahoo * Yammer * Yandex +* Zoom ## Examples diff --git a/vendor/github.com/markbates/goth/go.mod b/vendor/github.com/markbates/goth/go.mod index 4a4405185a939..20196c9d0a7a5 100644 --- a/vendor/github.com/markbates/goth/go.mod +++ b/vendor/github.com/markbates/goth/go.mod @@ -5,7 +5,7 @@ go 1.15 require ( cloud.google.com/go v0.67.0 // indirect github.com/davecgh/go-spew v1.1.1 // indirect - github.com/golang-jwt/jwt v3.2.1+incompatible + github.com/golang-jwt/jwt/v4 v4.2.0 github.com/gorilla/mux v1.6.2 github.com/gorilla/pat v0.0.0-20180118222023-199c85a7f6d1 github.com/gorilla/sessions v1.1.1 diff --git a/vendor/github.com/markbates/goth/go.sum b/vendor/github.com/markbates/goth/go.sum index 38523c052b239..dc3bd7ae3f8ca 100644 --- a/vendor/github.com/markbates/goth/go.sum +++ b/vendor/github.com/markbates/goth/go.sum @@ -51,8 +51,8 @@ github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7 github.com/go-gl/glfw v0.0.0-20190409004039-e6da0acd62b1/go.mod h1:vR7hzQXu2zJy9AVAgeJqvqgH9Q5CA+iKCZ2gyEVpxRU= github.com/go-gl/glfw/v3.3/glfw v0.0.0-20191125211704-12ad95a8df72/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8= github.com/go-gl/glfw/v3.3/glfw v0.0.0-20200222043503-6f7a984d4dc4/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8= -github.com/golang-jwt/jwt v3.2.1+incompatible h1:73Z+4BJcrTC+KczS6WvTPvRGOp1WmfEP4Q1lOd9Z/+c= -github.com/golang-jwt/jwt v3.2.1+incompatible/go.mod h1:8pz2t5EyA70fFQQSrl6XZXzqecmYZeUEB8OUGHkxJ+I= +github.com/golang-jwt/jwt/v4 v4.2.0 h1:besgBTC8w8HjP6NzQdxwKH9Z5oQMZ24ThTrHp3cZ8eU= +github.com/golang-jwt/jwt/v4 v4.2.0/go.mod h1:/xlHOz8bRuivTWchD4jCa+NbatV+wEUSzwAxVc6locg= github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q= github.com/golang/groupcache v0.0.0-20190702054246-869f871628b6/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc= github.com/golang/groupcache v0.0.0-20191227052852-215e87163ea7/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc= diff --git a/vendor/github.com/markbates/goth/providers/google/endpoint.go b/vendor/github.com/markbates/goth/providers/google/endpoint.go index 90067bed26a0e..9e3a7e35329a1 100644 --- a/vendor/github.com/markbates/goth/providers/google/endpoint.go +++ b/vendor/github.com/markbates/goth/providers/google/endpoint.go @@ -1,3 +1,4 @@ +//go:build go1.9 // +build go1.9 package google diff --git a/vendor/github.com/markbates/goth/providers/google/endpoint_legacy.go b/vendor/github.com/markbates/goth/providers/google/endpoint_legacy.go index f9fbee7911cd6..9dcc4360e4062 100644 --- a/vendor/github.com/markbates/goth/providers/google/endpoint_legacy.go +++ b/vendor/github.com/markbates/goth/providers/google/endpoint_legacy.go @@ -1,3 +1,4 @@ +//go:build !go1.9 // +build !go1.9 package google diff --git a/vendor/github.com/markbates/goth/providers/google/google.go b/vendor/github.com/markbates/goth/providers/google/google.go index dcc79245bfde1..d9cb41bbf0185 100644 --- a/vendor/github.com/markbates/goth/providers/google/google.go +++ b/vendor/github.com/markbates/goth/providers/google/google.go @@ -25,6 +25,12 @@ func New(clientKey, secret, callbackURL string, scopes ...string) *Provider { Secret: secret, CallbackURL: callbackURL, providerName: "google", + + // We can get a refresh token from Google by this option. + // See https://developers.google.com/identity/protocols/oauth2/openid-connect#access-type-param + authCodeOptions: []oauth2.AuthCodeOption{ + oauth2.AccessTypeOffline, + }, } p.config = newConfig(p, scopes) return p @@ -86,6 +92,7 @@ func (p *Provider) FetchUser(session goth.Session) (goth.User, error) { Provider: p.Name(), RefreshToken: sess.RefreshToken, ExpiresAt: sess.ExpiresAt, + IDToken: sess.IDToken, } if user.AccessToken == "" { @@ -139,9 +146,7 @@ func newConfig(provider *Provider, scopes []string) *oauth2.Config { } if len(scopes) > 0 { - for _, scope := range scopes { - c.Scopes = append(c.Scopes, scope) - } + c.Scopes = append(c.Scopes, scopes...) } else { c.Scopes = []string{"email"} } @@ -194,3 +199,13 @@ func (p *Provider) SetLoginHint(loginHint string) { } p.authCodeOptions = append(p.authCodeOptions, oauth2.SetAuthURLParam("login_hint", loginHint)) } + +// SetAccessType sets the access_type parameter for the google OAuth call. +// If an access token is being requested, the client does not receive a refresh token unless a value of offline is specified. +// See https://developers.google.com/identity/protocols/oauth2/openid-connect#access-type-param +func (p *Provider) SetAccessType(at string) { + if at == "" { + return + } + p.authCodeOptions = append(p.authCodeOptions, oauth2.SetAuthURLParam("access_type", at)) +} diff --git a/vendor/github.com/markbates/goth/providers/google/session.go b/vendor/github.com/markbates/goth/providers/google/session.go index 47df1601bcc72..f2791df59d1da 100644 --- a/vendor/github.com/markbates/goth/providers/google/session.go +++ b/vendor/github.com/markbates/goth/providers/google/session.go @@ -15,6 +15,7 @@ type Session struct { AccessToken string RefreshToken string ExpiresAt time.Time + IDToken string } // GetAuthURL will return the URL set by calling the `BeginAuth` function on the Google provider. @@ -40,6 +41,7 @@ func (s *Session) Authorize(provider goth.Provider, params goth.Params) (string, s.AccessToken = token.AccessToken s.RefreshToken = token.RefreshToken s.ExpiresAt = token.Expiry + s.IDToken = token.Extra("id_token").(string) return token.AccessToken, err } diff --git a/vendor/github.com/satori/go.uuid/.travis.yml b/vendor/github.com/satori/go.uuid/.travis.yml new file mode 100644 index 0000000000000..20dd53b8d3626 --- /dev/null +++ b/vendor/github.com/satori/go.uuid/.travis.yml @@ -0,0 +1,23 @@ +language: go +sudo: false +go: + - 1.2 + - 1.3 + - 1.4 + - 1.5 + - 1.6 + - 1.7 + - 1.8 + - 1.9 + - tip +matrix: + allow_failures: + - go: tip + fast_finish: true +before_install: + - go get github.com/mattn/goveralls + - go get golang.org/x/tools/cmd/cover +script: + - $HOME/gopath/bin/goveralls -service=travis-ci +notifications: + email: false diff --git a/vendor/github.com/satori/go.uuid/LICENSE b/vendor/github.com/satori/go.uuid/LICENSE new file mode 100644 index 0000000000000..926d549870294 --- /dev/null +++ b/vendor/github.com/satori/go.uuid/LICENSE @@ -0,0 +1,20 @@ +Copyright (C) 2013-2018 by Maxim Bublis + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. diff --git a/vendor/github.com/satori/go.uuid/README.md b/vendor/github.com/satori/go.uuid/README.md new file mode 100644 index 0000000000000..7b1a722dff9fa --- /dev/null +++ b/vendor/github.com/satori/go.uuid/README.md @@ -0,0 +1,65 @@ +# UUID package for Go language + +[![Build Status](https://travis-ci.org/satori/go.uuid.png?branch=master)](https://travis-ci.org/satori/go.uuid) +[![Coverage Status](https://coveralls.io/repos/github/satori/go.uuid/badge.svg?branch=master)](https://coveralls.io/github/satori/go.uuid) +[![GoDoc](http://godoc.org/github.com/satori/go.uuid?status.png)](http://godoc.org/github.com/satori/go.uuid) + +This package provides pure Go implementation of Universally Unique Identifier (UUID). Supported both creation and parsing of UUIDs. + +With 100% test coverage and benchmarks out of box. + +Supported versions: +* Version 1, based on timestamp and MAC address (RFC 4122) +* Version 2, based on timestamp, MAC address and POSIX UID/GID (DCE 1.1) +* Version 3, based on MD5 hashing (RFC 4122) +* Version 4, based on random numbers (RFC 4122) +* Version 5, based on SHA-1 hashing (RFC 4122) + +## Installation + +Use the `go` command: + + $ go get github.com/satori/go.uuid + +## Requirements + +UUID package requires Go >= 1.2. + +## Example + +```go +package main + +import ( + "fmt" + "github.com/satori/go.uuid" +) + +func main() { + // Creating UUID Version 4 + u1 := uuid.NewV4() + fmt.Printf("UUIDv4: %s\n", u1) + + // Parsing UUID from string input + u2, err := uuid.FromString("6ba7b810-9dad-11d1-80b4-00c04fd430c8") + if err != nil { + fmt.Printf("Something gone wrong: %s", err) + } + fmt.Printf("Successfully parsed: %s", u2) +} +``` + +## Documentation + +[Documentation](http://godoc.org/github.com/satori/go.uuid) is hosted at GoDoc project. + +## Links +* [RFC 4122](http://tools.ietf.org/html/rfc4122) +* [DCE 1.1: Authentication and Security Services](http://pubs.opengroup.org/onlinepubs/9696989899/chap5.htm#tagcjh_08_02_01_01) + +## Copyright + +Copyright (C) 2013-2018 by Maxim Bublis . + +UUID package released under MIT License. +See [LICENSE](https://github.com/satori/go.uuid/blob/master/LICENSE) for details. diff --git a/vendor/github.com/satori/go.uuid/codec.go b/vendor/github.com/satori/go.uuid/codec.go new file mode 100644 index 0000000000000..656892c53e071 --- /dev/null +++ b/vendor/github.com/satori/go.uuid/codec.go @@ -0,0 +1,206 @@ +// Copyright (C) 2013-2018 by Maxim Bublis +// +// Permission is hereby granted, free of charge, to any person obtaining +// a copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to +// permit persons to whom the Software is furnished to do so, subject to +// the following conditions: +// +// The above copyright notice and this permission notice shall be +// included in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + +package uuid + +import ( + "bytes" + "encoding/hex" + "fmt" +) + +// FromBytes returns UUID converted from raw byte slice input. +// It will return error if the slice isn't 16 bytes long. +func FromBytes(input []byte) (u UUID, err error) { + err = u.UnmarshalBinary(input) + return +} + +// FromBytesOrNil returns UUID converted from raw byte slice input. +// Same behavior as FromBytes, but returns a Nil UUID on error. +func FromBytesOrNil(input []byte) UUID { + uuid, err := FromBytes(input) + if err != nil { + return Nil + } + return uuid +} + +// FromString returns UUID parsed from string input. +// Input is expected in a form accepted by UnmarshalText. +func FromString(input string) (u UUID, err error) { + err = u.UnmarshalText([]byte(input)) + return +} + +// FromStringOrNil returns UUID parsed from string input. +// Same behavior as FromString, but returns a Nil UUID on error. +func FromStringOrNil(input string) UUID { + uuid, err := FromString(input) + if err != nil { + return Nil + } + return uuid +} + +// MarshalText implements the encoding.TextMarshaler interface. +// The encoding is the same as returned by String. +func (u UUID) MarshalText() (text []byte, err error) { + text = []byte(u.String()) + return +} + +// UnmarshalText implements the encoding.TextUnmarshaler interface. +// Following formats are supported: +// "6ba7b810-9dad-11d1-80b4-00c04fd430c8", +// "{6ba7b810-9dad-11d1-80b4-00c04fd430c8}", +// "urn:uuid:6ba7b810-9dad-11d1-80b4-00c04fd430c8" +// "6ba7b8109dad11d180b400c04fd430c8" +// ABNF for supported UUID text representation follows: +// uuid := canonical | hashlike | braced | urn +// plain := canonical | hashlike +// canonical := 4hexoct '-' 2hexoct '-' 2hexoct '-' 6hexoct +// hashlike := 12hexoct +// braced := '{' plain '}' +// urn := URN ':' UUID-NID ':' plain +// URN := 'urn' +// UUID-NID := 'uuid' +// 12hexoct := 6hexoct 6hexoct +// 6hexoct := 4hexoct 2hexoct +// 4hexoct := 2hexoct 2hexoct +// 2hexoct := hexoct hexoct +// hexoct := hexdig hexdig +// hexdig := '0' | '1' | '2' | '3' | '4' | '5' | '6' | '7' | '8' | '9' | +// 'a' | 'b' | 'c' | 'd' | 'e' | 'f' | +// 'A' | 'B' | 'C' | 'D' | 'E' | 'F' +func (u *UUID) UnmarshalText(text []byte) (err error) { + switch len(text) { + case 32: + return u.decodeHashLike(text) + case 36: + return u.decodeCanonical(text) + case 38: + return u.decodeBraced(text) + case 41: + fallthrough + case 45: + return u.decodeURN(text) + default: + return fmt.Errorf("uuid: incorrect UUID length: %s", text) + } +} + +// decodeCanonical decodes UUID string in format +// "6ba7b810-9dad-11d1-80b4-00c04fd430c8". +func (u *UUID) decodeCanonical(t []byte) (err error) { + if t[8] != '-' || t[13] != '-' || t[18] != '-' || t[23] != '-' { + return fmt.Errorf("uuid: incorrect UUID format %s", t) + } + + src := t[:] + dst := u[:] + + for i, byteGroup := range byteGroups { + if i > 0 { + src = src[1:] // skip dash + } + _, err = hex.Decode(dst[:byteGroup/2], src[:byteGroup]) + if err != nil { + return + } + src = src[byteGroup:] + dst = dst[byteGroup/2:] + } + + return +} + +// decodeHashLike decodes UUID string in format +// "6ba7b8109dad11d180b400c04fd430c8". +func (u *UUID) decodeHashLike(t []byte) (err error) { + src := t[:] + dst := u[:] + + if _, err = hex.Decode(dst, src); err != nil { + return err + } + return +} + +// decodeBraced decodes UUID string in format +// "{6ba7b810-9dad-11d1-80b4-00c04fd430c8}" or in format +// "{6ba7b8109dad11d180b400c04fd430c8}". +func (u *UUID) decodeBraced(t []byte) (err error) { + l := len(t) + + if t[0] != '{' || t[l-1] != '}' { + return fmt.Errorf("uuid: incorrect UUID format %s", t) + } + + return u.decodePlain(t[1 : l-1]) +} + +// decodeURN decodes UUID string in format +// "urn:uuid:6ba7b810-9dad-11d1-80b4-00c04fd430c8" or in format +// "urn:uuid:6ba7b8109dad11d180b400c04fd430c8". +func (u *UUID) decodeURN(t []byte) (err error) { + total := len(t) + + urn_uuid_prefix := t[:9] + + if !bytes.Equal(urn_uuid_prefix, urnPrefix) { + return fmt.Errorf("uuid: incorrect UUID format: %s", t) + } + + return u.decodePlain(t[9:total]) +} + +// decodePlain decodes UUID string in canonical format +// "6ba7b810-9dad-11d1-80b4-00c04fd430c8" or in hash-like format +// "6ba7b8109dad11d180b400c04fd430c8". +func (u *UUID) decodePlain(t []byte) (err error) { + switch len(t) { + case 32: + return u.decodeHashLike(t) + case 36: + return u.decodeCanonical(t) + default: + return fmt.Errorf("uuid: incorrrect UUID length: %s", t) + } +} + +// MarshalBinary implements the encoding.BinaryMarshaler interface. +func (u UUID) MarshalBinary() (data []byte, err error) { + data = u.Bytes() + return +} + +// UnmarshalBinary implements the encoding.BinaryUnmarshaler interface. +// It will return error if the slice isn't 16 bytes long. +func (u *UUID) UnmarshalBinary(data []byte) (err error) { + if len(data) != Size { + err = fmt.Errorf("uuid: UUID must be exactly 16 bytes long, got %d bytes", len(data)) + return + } + copy(u[:], data) + + return +} diff --git a/vendor/github.com/satori/go.uuid/generator.go b/vendor/github.com/satori/go.uuid/generator.go new file mode 100644 index 0000000000000..3f2f1da2dcee4 --- /dev/null +++ b/vendor/github.com/satori/go.uuid/generator.go @@ -0,0 +1,239 @@ +// Copyright (C) 2013-2018 by Maxim Bublis +// +// Permission is hereby granted, free of charge, to any person obtaining +// a copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to +// permit persons to whom the Software is furnished to do so, subject to +// the following conditions: +// +// The above copyright notice and this permission notice shall be +// included in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + +package uuid + +import ( + "crypto/md5" + "crypto/rand" + "crypto/sha1" + "encoding/binary" + "hash" + "net" + "os" + "sync" + "time" +) + +// Difference in 100-nanosecond intervals between +// UUID epoch (October 15, 1582) and Unix epoch (January 1, 1970). +const epochStart = 122192928000000000 + +var ( + global = newDefaultGenerator() + + epochFunc = unixTimeFunc + posixUID = uint32(os.Getuid()) + posixGID = uint32(os.Getgid()) +) + +// NewV1 returns UUID based on current timestamp and MAC address. +func NewV1() UUID { + return global.NewV1() +} + +// NewV2 returns DCE Security UUID based on POSIX UID/GID. +func NewV2(domain byte) UUID { + return global.NewV2(domain) +} + +// NewV3 returns UUID based on MD5 hash of namespace UUID and name. +func NewV3(ns UUID, name string) UUID { + return global.NewV3(ns, name) +} + +// NewV4 returns random generated UUID. +func NewV4() UUID { + return global.NewV4() +} + +// NewV5 returns UUID based on SHA-1 hash of namespace UUID and name. +func NewV5(ns UUID, name string) UUID { + return global.NewV5(ns, name) +} + +// Generator provides interface for generating UUIDs. +type Generator interface { + NewV1() UUID + NewV2(domain byte) UUID + NewV3(ns UUID, name string) UUID + NewV4() UUID + NewV5(ns UUID, name string) UUID +} + +// Default generator implementation. +type generator struct { + storageOnce sync.Once + storageMutex sync.Mutex + + lastTime uint64 + clockSequence uint16 + hardwareAddr [6]byte +} + +func newDefaultGenerator() Generator { + return &generator{} +} + +// NewV1 returns UUID based on current timestamp and MAC address. +func (g *generator) NewV1() UUID { + u := UUID{} + + timeNow, clockSeq, hardwareAddr := g.getStorage() + + binary.BigEndian.PutUint32(u[0:], uint32(timeNow)) + binary.BigEndian.PutUint16(u[4:], uint16(timeNow>>32)) + binary.BigEndian.PutUint16(u[6:], uint16(timeNow>>48)) + binary.BigEndian.PutUint16(u[8:], clockSeq) + + copy(u[10:], hardwareAddr) + + u.SetVersion(V1) + u.SetVariant(VariantRFC4122) + + return u +} + +// NewV2 returns DCE Security UUID based on POSIX UID/GID. +func (g *generator) NewV2(domain byte) UUID { + u := UUID{} + + timeNow, clockSeq, hardwareAddr := g.getStorage() + + switch domain { + case DomainPerson: + binary.BigEndian.PutUint32(u[0:], posixUID) + case DomainGroup: + binary.BigEndian.PutUint32(u[0:], posixGID) + } + + binary.BigEndian.PutUint16(u[4:], uint16(timeNow>>32)) + binary.BigEndian.PutUint16(u[6:], uint16(timeNow>>48)) + binary.BigEndian.PutUint16(u[8:], clockSeq) + u[9] = domain + + copy(u[10:], hardwareAddr) + + u.SetVersion(V2) + u.SetVariant(VariantRFC4122) + + return u +} + +// NewV3 returns UUID based on MD5 hash of namespace UUID and name. +func (g *generator) NewV3(ns UUID, name string) UUID { + u := newFromHash(md5.New(), ns, name) + u.SetVersion(V3) + u.SetVariant(VariantRFC4122) + + return u +} + +// NewV4 returns random generated UUID. +func (g *generator) NewV4() UUID { + u := UUID{} + g.safeRandom(u[:]) + u.SetVersion(V4) + u.SetVariant(VariantRFC4122) + + return u +} + +// NewV5 returns UUID based on SHA-1 hash of namespace UUID and name. +func (g *generator) NewV5(ns UUID, name string) UUID { + u := newFromHash(sha1.New(), ns, name) + u.SetVersion(V5) + u.SetVariant(VariantRFC4122) + + return u +} + +func (g *generator) initStorage() { + g.initClockSequence() + g.initHardwareAddr() +} + +func (g *generator) initClockSequence() { + buf := make([]byte, 2) + g.safeRandom(buf) + g.clockSequence = binary.BigEndian.Uint16(buf) +} + +func (g *generator) initHardwareAddr() { + interfaces, err := net.Interfaces() + if err == nil { + for _, iface := range interfaces { + if len(iface.HardwareAddr) >= 6 { + copy(g.hardwareAddr[:], iface.HardwareAddr) + return + } + } + } + + // Initialize hardwareAddr randomly in case + // of real network interfaces absence + g.safeRandom(g.hardwareAddr[:]) + + // Set multicast bit as recommended in RFC 4122 + g.hardwareAddr[0] |= 0x01 +} + +func (g *generator) safeRandom(dest []byte) { + if _, err := rand.Read(dest); err != nil { + panic(err) + } +} + +// Returns UUID v1/v2 storage state. +// Returns epoch timestamp, clock sequence, and hardware address. +func (g *generator) getStorage() (uint64, uint16, []byte) { + g.storageOnce.Do(g.initStorage) + + g.storageMutex.Lock() + defer g.storageMutex.Unlock() + + timeNow := epochFunc() + // Clock changed backwards since last UUID generation. + // Should increase clock sequence. + if timeNow <= g.lastTime { + g.clockSequence++ + } + g.lastTime = timeNow + + return timeNow, g.clockSequence, g.hardwareAddr[:] +} + +// Returns difference in 100-nanosecond intervals between +// UUID epoch (October 15, 1582) and current time. +// This is default epoch calculation function. +func unixTimeFunc() uint64 { + return epochStart + uint64(time.Now().UnixNano()/100) +} + +// Returns UUID based on hashing of namespace UUID and name. +func newFromHash(h hash.Hash, ns UUID, name string) UUID { + u := UUID{} + h.Write(ns[:]) + h.Write([]byte(name)) + copy(u[:], h.Sum(nil)) + + return u +} diff --git a/vendor/github.com/satori/go.uuid/sql.go b/vendor/github.com/satori/go.uuid/sql.go new file mode 100644 index 0000000000000..56759d3905099 --- /dev/null +++ b/vendor/github.com/satori/go.uuid/sql.go @@ -0,0 +1,78 @@ +// Copyright (C) 2013-2018 by Maxim Bublis +// +// Permission is hereby granted, free of charge, to any person obtaining +// a copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to +// permit persons to whom the Software is furnished to do so, subject to +// the following conditions: +// +// The above copyright notice and this permission notice shall be +// included in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + +package uuid + +import ( + "database/sql/driver" + "fmt" +) + +// Value implements the driver.Valuer interface. +func (u UUID) Value() (driver.Value, error) { + return u.String(), nil +} + +// Scan implements the sql.Scanner interface. +// A 16-byte slice is handled by UnmarshalBinary, while +// a longer byte slice or a string is handled by UnmarshalText. +func (u *UUID) Scan(src interface{}) error { + switch src := src.(type) { + case []byte: + if len(src) == Size { + return u.UnmarshalBinary(src) + } + return u.UnmarshalText(src) + + case string: + return u.UnmarshalText([]byte(src)) + } + + return fmt.Errorf("uuid: cannot convert %T to UUID", src) +} + +// NullUUID can be used with the standard sql package to represent a +// UUID value that can be NULL in the database +type NullUUID struct { + UUID UUID + Valid bool +} + +// Value implements the driver.Valuer interface. +func (u NullUUID) Value() (driver.Value, error) { + if !u.Valid { + return nil, nil + } + // Delegate to UUID Value function + return u.UUID.Value() +} + +// Scan implements the sql.Scanner interface. +func (u *NullUUID) Scan(src interface{}) error { + if src == nil { + u.UUID, u.Valid = Nil, false + return nil + } + + // Delegate to UUID Scan function + u.Valid = true + return u.UUID.Scan(src) +} diff --git a/vendor/github.com/satori/go.uuid/uuid.go b/vendor/github.com/satori/go.uuid/uuid.go new file mode 100644 index 0000000000000..a2b8e2ca2a1e0 --- /dev/null +++ b/vendor/github.com/satori/go.uuid/uuid.go @@ -0,0 +1,161 @@ +// Copyright (C) 2013-2018 by Maxim Bublis +// +// Permission is hereby granted, free of charge, to any person obtaining +// a copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to +// permit persons to whom the Software is furnished to do so, subject to +// the following conditions: +// +// The above copyright notice and this permission notice shall be +// included in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + +// Package uuid provides implementation of Universally Unique Identifier (UUID). +// Supported versions are 1, 3, 4 and 5 (as specified in RFC 4122) and +// version 2 (as specified in DCE 1.1). +package uuid + +import ( + "bytes" + "encoding/hex" +) + +// Size of a UUID in bytes. +const Size = 16 + +// UUID representation compliant with specification +// described in RFC 4122. +type UUID [Size]byte + +// UUID versions +const ( + _ byte = iota + V1 + V2 + V3 + V4 + V5 +) + +// UUID layout variants. +const ( + VariantNCS byte = iota + VariantRFC4122 + VariantMicrosoft + VariantFuture +) + +// UUID DCE domains. +const ( + DomainPerson = iota + DomainGroup + DomainOrg +) + +// String parse helpers. +var ( + urnPrefix = []byte("urn:uuid:") + byteGroups = []int{8, 4, 4, 4, 12} +) + +// Nil is special form of UUID that is specified to have all +// 128 bits set to zero. +var Nil = UUID{} + +// Predefined namespace UUIDs. +var ( + NamespaceDNS = Must(FromString("6ba7b810-9dad-11d1-80b4-00c04fd430c8")) + NamespaceURL = Must(FromString("6ba7b811-9dad-11d1-80b4-00c04fd430c8")) + NamespaceOID = Must(FromString("6ba7b812-9dad-11d1-80b4-00c04fd430c8")) + NamespaceX500 = Must(FromString("6ba7b814-9dad-11d1-80b4-00c04fd430c8")) +) + +// Equal returns true if u1 and u2 equals, otherwise returns false. +func Equal(u1 UUID, u2 UUID) bool { + return bytes.Equal(u1[:], u2[:]) +} + +// Version returns algorithm version used to generate UUID. +func (u UUID) Version() byte { + return u[6] >> 4 +} + +// Variant returns UUID layout variant. +func (u UUID) Variant() byte { + switch { + case (u[8] >> 7) == 0x00: + return VariantNCS + case (u[8] >> 6) == 0x02: + return VariantRFC4122 + case (u[8] >> 5) == 0x06: + return VariantMicrosoft + case (u[8] >> 5) == 0x07: + fallthrough + default: + return VariantFuture + } +} + +// Bytes returns bytes slice representation of UUID. +func (u UUID) Bytes() []byte { + return u[:] +} + +// Returns canonical string representation of UUID: +// xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx. +func (u UUID) String() string { + buf := make([]byte, 36) + + hex.Encode(buf[0:8], u[0:4]) + buf[8] = '-' + hex.Encode(buf[9:13], u[4:6]) + buf[13] = '-' + hex.Encode(buf[14:18], u[6:8]) + buf[18] = '-' + hex.Encode(buf[19:23], u[8:10]) + buf[23] = '-' + hex.Encode(buf[24:], u[10:]) + + return string(buf) +} + +// SetVersion sets version bits. +func (u *UUID) SetVersion(v byte) { + u[6] = (u[6] & 0x0f) | (v << 4) +} + +// SetVariant sets variant bits. +func (u *UUID) SetVariant(v byte) { + switch v { + case VariantNCS: + u[8] = (u[8]&(0xff>>1) | (0x00 << 7)) + case VariantRFC4122: + u[8] = (u[8]&(0xff>>2) | (0x02 << 6)) + case VariantMicrosoft: + u[8] = (u[8]&(0xff>>3) | (0x06 << 5)) + case VariantFuture: + fallthrough + default: + u[8] = (u[8]&(0xff>>3) | (0x07 << 5)) + } +} + +// Must is a helper that wraps a call to a function returning (UUID, error) +// and panics if the error is non-nil. It is intended for use in variable +// initializations such as +// var packageUUID = uuid.Must(uuid.FromString("123e4567-e89b-12d3-a456-426655440000")); +func Must(u UUID, err error) UUID { + if err != nil { + panic(err) + } + return u +} diff --git a/vendor/github.com/x448/float16/.travis.yml b/vendor/github.com/x448/float16/.travis.yml new file mode 100644 index 0000000000000..8902bdaaffc2d --- /dev/null +++ b/vendor/github.com/x448/float16/.travis.yml @@ -0,0 +1,13 @@ +language: go + +go: + - 1.11.x + +env: + - GO111MODULE=on + +script: + - go test -short -coverprofile=coverage.txt -covermode=count ./... + +after_success: + - bash <(curl -s https://codecov.io/bash) diff --git a/vendor/github.com/x448/float16/LICENSE b/vendor/github.com/x448/float16/LICENSE new file mode 100644 index 0000000000000..bf6e357854a0a --- /dev/null +++ b/vendor/github.com/x448/float16/LICENSE @@ -0,0 +1,22 @@ +MIT License + +Copyright (c) 2019 Montgomery Edwards⁴⁴⁸ and Faye Amacker + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. + diff --git a/vendor/github.com/x448/float16/README.md b/vendor/github.com/x448/float16/README.md new file mode 100644 index 0000000000000..b524b8135d58d --- /dev/null +++ b/vendor/github.com/x448/float16/README.md @@ -0,0 +1,133 @@ +# Float16 (Binary16) in Go/Golang +[![Build Status](https://travis-ci.org/x448/float16.svg?branch=master)](https://travis-ci.org/x448/float16) +[![codecov](https://codecov.io/gh/x448/float16/branch/master/graph/badge.svg?v=4)](https://codecov.io/gh/x448/float16) +[![Go Report Card](https://goreportcard.com/badge/github.com/x448/float16)](https://goreportcard.com/report/github.com/x448/float16) +[![Release](https://img.shields.io/github/release/x448/float16.svg?style=flat-square)](https://github.com/x448/float16/releases) +[![License](http://img.shields.io/badge/license-mit-blue.svg?style=flat-square)](https://raw.githubusercontent.com/x448/float16/master/LICENSE) + +`float16` package provides [IEEE 754 half-precision floating-point format (binary16)](https://en.wikipedia.org/wiki/Half-precision_floating-point_format) with IEEE 754 default rounding for conversions. IEEE 754-2008 refers to this 16-bit floating-point format as binary16. + +IEEE 754 default rounding ("Round-to-Nearest RoundTiesToEven") is considered the most accurate and statistically unbiased estimate of the true result. + +All possible 4+ billion floating-point conversions with this library are verified to be correct. + +Lowercase "float16" refers to IEEE 754 binary16. And capitalized "Float16" refers to exported Go data type provided by this library. + +## Features +Current features include: + +* float16 to float32 conversions use lossless conversion. +* float32 to float16 conversions use IEEE 754-2008 "Round-to-Nearest RoundTiesToEven". +* conversions using pure Go take about 2.65 ns/op on a desktop amd64. +* unit tests provide 100% code coverage and check all possible 4+ billion conversions. +* other functions include: IsInf(), IsNaN(), IsNormal(), PrecisionFromfloat32(), String(), etc. +* all functions in this library use zero allocs except String(). + +## Status +This library is used by [fxamacker/cbor](https://github.com/fxamacker/cbor) and is ready for production use on supported platforms. The version number < 1.0 indicates more functions and options are planned but not yet published. + +Current status: + +* core API is done and breaking API changes are unlikely. +* 100% of unit tests pass: + * short mode (`go test -short`) tests around 65765 conversions in 0.005s. + * normal mode (`go test`) tests all possible 4+ billion conversions in about 95s. +* 100% code coverage with both short mode and normal mode. +* tested on amd64 but it should work on all little-endian platforms supported by Go. + +Roadmap: + +* add functions for fast batch conversions leveraging SIMD when supported by hardware. +* speed up unit test when verifying all possible 4+ billion conversions. +* test on additional platforms. + +## Float16 to Float32 Conversion +Conversions from float16 to float32 are lossless conversions. All 65536 possible float16 to float32 conversions (in pure Go) are confirmed to be correct. + +Unit tests take a fraction of a second to check all 65536 expected values for float16 to float32 conversions. + +## Float32 to Float16 Conversion +Conversions from float32 to float16 use IEEE 754 default rounding ("Round-to-Nearest RoundTiesToEven"). All 4294967296 possible float32 to float16 conversions (in pure Go) are confirmed to be correct. + +Unit tests in normal mode take about 1-2 minutes to check all 4+ billion float32 input values and results for Fromfloat32(), FromNaN32ps(), and PrecisionFromfloat32(). + +Unit tests in short mode use a small subset (around 229 float32 inputs) and finish in under 0.01 second while still reaching 100% code coverage. + +## Usage +Install with `go get github.com/x448/float16`. +``` +// Convert float32 to float16 +pi := float32(math.Pi) +pi16 := float16.Fromfloat32(pi) + +// Convert float16 to float32 +pi32 := pi16.Float32() + +// PrecisionFromfloat32() is faster than the overhead of calling a function. +// This example only converts if there's no data loss and input is not a subnormal. +if float16.PrecisionFromfloat32(pi) == float16.PrecisionExact { + pi16 := float16.Fromfloat32(pi) +} +``` + +## Float16 Type and API +Float16 (capitalized) is a Go type with uint16 as the underlying state. There are 6 exported functions and 9 exported methods. +``` +package float16 // import "github.com/x448/float16" + +// Exported types and consts +type Float16 uint16 +const ErrInvalidNaNValue = float16Error("float16: invalid NaN value, expected IEEE 754 NaN") + +// Exported functions +Fromfloat32(f32 float32) Float16 // Float16 number converted from f32 using IEEE 754 default rounding + with identical results to AMD and Intel F16C hardware. NaN inputs + are converted with quiet bit always set on, to be like F16C. + +FromNaN32ps(nan float32) (Float16, error) // Float16 NaN without modifying quiet bit. + // The "ps" suffix means "preserve signaling". + // Returns sNaN and ErrInvalidNaNValue if nan isn't a NaN. + +Frombits(b16 uint16) Float16 // Float16 number corresponding to b16 (IEEE 754 binary16 rep.) +NaN() Float16 // Float16 of IEEE 754 binary16 not-a-number +Inf(sign int) Float16 // Float16 of IEEE 754 binary16 infinity according to sign + +PrecisionFromfloat32(f32 float32) Precision // quickly indicates exact, ..., overflow, underflow + // (inline and < 1 ns/op) +// Exported methods +(f Float16) Float32() float32 // float32 number converted from f16 using lossless conversion +(f Float16) Bits() uint16 // the IEEE 754 binary16 representation of f +(f Float16) IsNaN() bool // true if f is not-a-number (NaN) +(f Float16) IsQuietNaN() bool // true if f is a quiet not-a-number (NaN) +(f Float16) IsInf(sign int) bool // true if f is infinite based on sign (-1=NegInf, 0=any, 1=PosInf) +(f Float16) IsFinite() bool // true if f is not infinite or NaN +(f Float16) IsNormal() bool // true if f is not zero, infinite, subnormal, or NaN. +(f Float16) Signbit() bool // true if f is negative or negative zero +(f Float16) String() string // string representation of f to satisfy fmt.Stringer interface +``` +See [API](https://godoc.org/github.com/x448/float16) at godoc.org for more info. + +## Benchmarks +Conversions (in pure Go) are around 2.65 ns/op for float16 -> float32 and float32 -> float16 on amd64. Speeds can vary depending on input value. + +``` +All functions have zero allocations except float16.String(). + +FromFloat32pi-2 2.59ns ± 0% // speed using Fromfloat32() to convert a float32 of math.Pi to Float16 +ToFloat32pi-2 2.69ns ± 0% // speed using Float32() to convert a float16 of math.Pi to float32 +Frombits-2 0.29ns ± 5% // speed using Frombits() to cast a uint16 to Float16 + +PrecisionFromFloat32-2 0.29ns ± 1% // speed using PrecisionFromfloat32() to check for overflows, etc. +``` + +## System Requirements +* Tested on Go 1.11, 1.12, and 1.13 but it should also work with older versions. +* Tested on amd64 but it should also work on all little-endian platforms supported by Go. + +## Special Thanks +Special thanks to Kathryn Long (starkat99) for creating [half-rs](https://github.com/starkat99/half-rs), a very nice rust implementation of float16. + +## License +Copyright (c) 2019 Montgomery Edwards⁴⁴⁸ and Faye Amacker + +Licensed under [MIT License](LICENSE) diff --git a/vendor/github.com/x448/float16/float16.go b/vendor/github.com/x448/float16/float16.go new file mode 100644 index 0000000000000..1a0e6dad00466 --- /dev/null +++ b/vendor/github.com/x448/float16/float16.go @@ -0,0 +1,302 @@ +// Copyright 2019 Montgomery Edwards⁴⁴⁸ and Faye Amacker +// +// Special thanks to Kathryn Long for her Rust implementation +// of float16 at github.com/starkat99/half-rs (MIT license) + +package float16 + +import ( + "math" + "strconv" +) + +// Float16 represents IEEE 754 half-precision floating-point numbers (binary16). +type Float16 uint16 + +// Precision indicates whether the conversion to Float16 is +// exact, subnormal without dropped bits, inexact, underflow, or overflow. +type Precision int + +const ( + + // PrecisionExact is for non-subnormals that don't drop bits during conversion. + // All of these can round-trip. Should always convert to float16. + PrecisionExact Precision = iota + + // PrecisionUnknown is for subnormals that don't drop bits during conversion but + // not all of these can round-trip so precision is unknown without more effort. + // Only 2046 of these can round-trip and the rest cannot round-trip. + PrecisionUnknown + + // PrecisionInexact is for dropped significand bits and cannot round-trip. + // Some of these are subnormals. Cannot round-trip float32->float16->float32. + PrecisionInexact + + // PrecisionUnderflow is for Underflows. Cannot round-trip float32->float16->float32. + PrecisionUnderflow + + // PrecisionOverflow is for Overflows. Cannot round-trip float32->float16->float32. + PrecisionOverflow +) + +// PrecisionFromfloat32 returns Precision without performing +// the conversion. Conversions from both Infinity and NaN +// values will always report PrecisionExact even if NaN payload +// or NaN-Quiet-Bit is lost. This function is kept simple to +// allow inlining and run < 0.5 ns/op, to serve as a fast filter. +func PrecisionFromfloat32(f32 float32) Precision { + u32 := math.Float32bits(f32) + + if u32 == 0 || u32 == 0x80000000 { + // +- zero will always be exact conversion + return PrecisionExact + } + + const COEFMASK uint32 = 0x7fffff // 23 least significant bits + const EXPSHIFT uint32 = 23 + const EXPBIAS uint32 = 127 + const EXPMASK uint32 = uint32(0xff) << EXPSHIFT + const DROPMASK uint32 = COEFMASK >> 10 + + exp := int32(((u32 & EXPMASK) >> EXPSHIFT) - EXPBIAS) + coef := u32 & COEFMASK + + if exp == 128 { + // +- infinity or NaN + // apps may want to do extra checks for NaN separately + return PrecisionExact + } + + // https://en.wikipedia.org/wiki/Half-precision_floating-point_format says, + // "Decimals between 2^−24 (minimum positive subnormal) and 2^−14 (maximum subnormal): fixed interval 2^−24" + if exp < -24 { + return PrecisionUnderflow + } + if exp > 15 { + return PrecisionOverflow + } + if (coef & DROPMASK) != uint32(0) { + // these include subnormals and non-subnormals that dropped bits + return PrecisionInexact + } + + if exp < -14 { + // Subnormals. Caller may want to test these further. + // There are 2046 subnormals that can successfully round-trip f32->f16->f32 + // and 20 of those 2046 have 32-bit input coef == 0. + // RFC 7049 and 7049bis Draft 12 don't precisely define "preserves value" + // so some protocols and libraries will choose to handle subnormals differently + // when deciding to encode them to CBOR float32 vs float16. + return PrecisionUnknown + } + + return PrecisionExact +} + +// Frombits returns the float16 number corresponding to the IEEE 754 binary16 +// representation u16, with the sign bit of u16 and the result in the same bit +// position. Frombits(Bits(x)) == x. +func Frombits(u16 uint16) Float16 { + return Float16(u16) +} + +// Fromfloat32 returns a Float16 value converted from f32. Conversion uses +// IEEE default rounding (nearest int, with ties to even). +func Fromfloat32(f32 float32) Float16 { + return Float16(f32bitsToF16bits(math.Float32bits(f32))) +} + +// ErrInvalidNaNValue indicates a NaN was not received. +const ErrInvalidNaNValue = float16Error("float16: invalid NaN value, expected IEEE 754 NaN") + +type float16Error string + +func (e float16Error) Error() string { return string(e) } + +// FromNaN32ps converts nan to IEEE binary16 NaN while preserving both +// signaling and payload. Unlike Fromfloat32(), which can only return +// qNaN because it sets quiet bit = 1, this can return both sNaN and qNaN. +// If the result is infinity (sNaN with empty payload), then the +// lowest bit of payload is set to make the result a NaN. +// Returns ErrInvalidNaNValue and 0x7c01 (sNaN) if nan isn't IEEE 754 NaN. +// This function was kept simple to be able to inline. +func FromNaN32ps(nan float32) (Float16, error) { + const SNAN = Float16(uint16(0x7c01)) // signalling NaN + + u32 := math.Float32bits(nan) + sign := u32 & 0x80000000 + exp := u32 & 0x7f800000 + coef := u32 & 0x007fffff + + if (exp != 0x7f800000) || (coef == 0) { + return SNAN, ErrInvalidNaNValue + } + + u16 := uint16((sign >> 16) | uint32(0x7c00) | (coef >> 13)) + + if (u16 & 0x03ff) == 0 { + // result became infinity, make it NaN by setting lowest bit in payload + u16 = u16 | 0x0001 + } + + return Float16(u16), nil +} + +// NaN returns a Float16 of IEEE 754 binary16 not-a-number (NaN). +// Returned NaN value 0x7e01 has all exponent bits = 1 with the +// first and last bits = 1 in the significand. This is consistent +// with Go's 64-bit math.NaN(). Canonical CBOR in RFC 7049 uses 0x7e00. +func NaN() Float16 { + return Float16(0x7e01) +} + +// Inf returns a Float16 with an infinity value with the specified sign. +// A sign >= returns positive infinity. +// A sign < 0 returns negative infinity. +func Inf(sign int) Float16 { + if sign >= 0 { + return Float16(0x7c00) + } + return Float16(0x8000 | 0x7c00) +} + +// Float32 returns a float32 converted from f (Float16). +// This is a lossless conversion. +func (f Float16) Float32() float32 { + u32 := f16bitsToF32bits(uint16(f)) + return math.Float32frombits(u32) +} + +// Bits returns the IEEE 754 binary16 representation of f, with the sign bit +// of f and the result in the same bit position. Bits(Frombits(x)) == x. +func (f Float16) Bits() uint16 { + return uint16(f) +} + +// IsNaN reports whether f is an IEEE 754 binary16 “not-a-number” value. +func (f Float16) IsNaN() bool { + return (f&0x7c00 == 0x7c00) && (f&0x03ff != 0) +} + +// IsQuietNaN reports whether f is a quiet (non-signaling) IEEE 754 binary16 +// “not-a-number” value. +func (f Float16) IsQuietNaN() bool { + return (f&0x7c00 == 0x7c00) && (f&0x03ff != 0) && (f&0x0200 != 0) +} + +// IsInf reports whether f is an infinity (inf). +// A sign > 0 reports whether f is positive inf. +// A sign < 0 reports whether f is negative inf. +// A sign == 0 reports whether f is either inf. +func (f Float16) IsInf(sign int) bool { + return ((f == 0x7c00) && sign >= 0) || + (f == 0xfc00 && sign <= 0) +} + +// IsFinite returns true if f is neither infinite nor NaN. +func (f Float16) IsFinite() bool { + return (uint16(f) & uint16(0x7c00)) != uint16(0x7c00) +} + +// IsNormal returns true if f is neither zero, infinite, subnormal, or NaN. +func (f Float16) IsNormal() bool { + exp := uint16(f) & uint16(0x7c00) + return (exp != uint16(0x7c00)) && (exp != 0) +} + +// Signbit reports whether f is negative or negative zero. +func (f Float16) Signbit() bool { + return (uint16(f) & uint16(0x8000)) != 0 +} + +// String satisfies the fmt.Stringer interface. +func (f Float16) String() string { + return strconv.FormatFloat(float64(f.Float32()), 'f', -1, 32) +} + +// f16bitsToF32bits returns uint32 (float32 bits) converted from specified uint16. +func f16bitsToF32bits(in uint16) uint32 { + // All 65536 conversions with this were confirmed to be correct + // by Montgomery Edwards⁴⁴⁸ (github.com/x448). + + sign := uint32(in&0x8000) << 16 // sign for 32-bit + exp := uint32(in&0x7c00) >> 10 // exponenent for 16-bit + coef := uint32(in&0x03ff) << 13 // significand for 32-bit + + if exp == 0x1f { + if coef == 0 { + // infinity + return sign | 0x7f800000 | coef + } + // NaN + return sign | 0x7fc00000 | coef + } + + if exp == 0 { + if coef == 0 { + // zero + return sign + } + + // normalize subnormal numbers + exp++ + for coef&0x7f800000 == 0 { + coef <<= 1 + exp-- + } + coef &= 0x007fffff + } + + return sign | ((exp + (0x7f - 0xf)) << 23) | coef +} + +// f32bitsToF16bits returns uint16 (Float16 bits) converted from the specified float32. +// Conversion rounds to nearest integer with ties to even. +func f32bitsToF16bits(u32 uint32) uint16 { + // Translated from Rust to Go by Montgomery Edwards⁴⁴⁸ (github.com/x448). + // All 4294967296 conversions with this were confirmed to be correct by x448. + // Original Rust implementation is by Kathryn Long (github.com/starkat99) with MIT license. + + sign := u32 & 0x80000000 + exp := u32 & 0x7f800000 + coef := u32 & 0x007fffff + + if exp == 0x7f800000 { + // NaN or Infinity + nanBit := uint32(0) + if coef != 0 { + nanBit = uint32(0x0200) + } + return uint16((sign >> 16) | uint32(0x7c00) | nanBit | (coef >> 13)) + } + + halfSign := sign >> 16 + + unbiasedExp := int32(exp>>23) - 127 + halfExp := unbiasedExp + 15 + + if halfExp >= 0x1f { + return uint16(halfSign | uint32(0x7c00)) + } + + if halfExp <= 0 { + if 14-halfExp > 24 { + return uint16(halfSign) + } + coef := coef | uint32(0x00800000) + halfCoef := coef >> uint32(14-halfExp) + roundBit := uint32(1) << uint32(13-halfExp) + if (coef&roundBit) != 0 && (coef&(3*roundBit-1)) != 0 { + halfCoef++ + } + return uint16(halfSign | halfCoef) + } + + uHalfExp := uint32(halfExp) << 10 + halfCoef := coef >> 13 + roundBit := uint32(0x00001000) + if (coef&roundBit) != 0 && (coef&(3*roundBit-1)) != 0 { + return uint16((halfSign | uHalfExp | halfCoef) + 1) + } + return uint16(halfSign | uHalfExp | halfCoef) +} diff --git a/vendor/github.com/x448/float16/go.mod b/vendor/github.com/x448/float16/go.mod new file mode 100644 index 0000000000000..2074c3aa68dfd --- /dev/null +++ b/vendor/github.com/x448/float16/go.mod @@ -0,0 +1,3 @@ +module github.com/x448/float16 + +go 1.11 diff --git a/vendor/golang.org/x/crypto/cryptobyte/asn1.go b/vendor/golang.org/x/crypto/cryptobyte/asn1.go new file mode 100644 index 0000000000000..83c776de08302 --- /dev/null +++ b/vendor/golang.org/x/crypto/cryptobyte/asn1.go @@ -0,0 +1,804 @@ +// Copyright 2017 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package cryptobyte + +import ( + encoding_asn1 "encoding/asn1" + "fmt" + "math/big" + "reflect" + "time" + + "golang.org/x/crypto/cryptobyte/asn1" +) + +// This file contains ASN.1-related methods for String and Builder. + +// Builder + +// AddASN1Int64 appends a DER-encoded ASN.1 INTEGER. +func (b *Builder) AddASN1Int64(v int64) { + b.addASN1Signed(asn1.INTEGER, v) +} + +// AddASN1Int64WithTag appends a DER-encoded ASN.1 INTEGER with the +// given tag. +func (b *Builder) AddASN1Int64WithTag(v int64, tag asn1.Tag) { + b.addASN1Signed(tag, v) +} + +// AddASN1Enum appends a DER-encoded ASN.1 ENUMERATION. +func (b *Builder) AddASN1Enum(v int64) { + b.addASN1Signed(asn1.ENUM, v) +} + +func (b *Builder) addASN1Signed(tag asn1.Tag, v int64) { + b.AddASN1(tag, func(c *Builder) { + length := 1 + for i := v; i >= 0x80 || i < -0x80; i >>= 8 { + length++ + } + + for ; length > 0; length-- { + i := v >> uint((length-1)*8) & 0xff + c.AddUint8(uint8(i)) + } + }) +} + +// AddASN1Uint64 appends a DER-encoded ASN.1 INTEGER. +func (b *Builder) AddASN1Uint64(v uint64) { + b.AddASN1(asn1.INTEGER, func(c *Builder) { + length := 1 + for i := v; i >= 0x80; i >>= 8 { + length++ + } + + for ; length > 0; length-- { + i := v >> uint((length-1)*8) & 0xff + c.AddUint8(uint8(i)) + } + }) +} + +// AddASN1BigInt appends a DER-encoded ASN.1 INTEGER. +func (b *Builder) AddASN1BigInt(n *big.Int) { + if b.err != nil { + return + } + + b.AddASN1(asn1.INTEGER, func(c *Builder) { + if n.Sign() < 0 { + // A negative number has to be converted to two's-complement form. So we + // invert and subtract 1. If the most-significant-bit isn't set then + // we'll need to pad the beginning with 0xff in order to keep the number + // negative. + nMinus1 := new(big.Int).Neg(n) + nMinus1.Sub(nMinus1, bigOne) + bytes := nMinus1.Bytes() + for i := range bytes { + bytes[i] ^= 0xff + } + if len(bytes) == 0 || bytes[0]&0x80 == 0 { + c.add(0xff) + } + c.add(bytes...) + } else if n.Sign() == 0 { + c.add(0) + } else { + bytes := n.Bytes() + if bytes[0]&0x80 != 0 { + c.add(0) + } + c.add(bytes...) + } + }) +} + +// AddASN1OctetString appends a DER-encoded ASN.1 OCTET STRING. +func (b *Builder) AddASN1OctetString(bytes []byte) { + b.AddASN1(asn1.OCTET_STRING, func(c *Builder) { + c.AddBytes(bytes) + }) +} + +const generalizedTimeFormatStr = "20060102150405Z0700" + +// AddASN1GeneralizedTime appends a DER-encoded ASN.1 GENERALIZEDTIME. +func (b *Builder) AddASN1GeneralizedTime(t time.Time) { + if t.Year() < 0 || t.Year() > 9999 { + b.err = fmt.Errorf("cryptobyte: cannot represent %v as a GeneralizedTime", t) + return + } + b.AddASN1(asn1.GeneralizedTime, func(c *Builder) { + c.AddBytes([]byte(t.Format(generalizedTimeFormatStr))) + }) +} + +// AddASN1UTCTime appends a DER-encoded ASN.1 UTCTime. +func (b *Builder) AddASN1UTCTime(t time.Time) { + b.AddASN1(asn1.UTCTime, func(c *Builder) { + // As utilized by the X.509 profile, UTCTime can only + // represent the years 1950 through 2049. + if t.Year() < 1950 || t.Year() >= 2050 { + b.err = fmt.Errorf("cryptobyte: cannot represent %v as a UTCTime", t) + return + } + c.AddBytes([]byte(t.Format(defaultUTCTimeFormatStr))) + }) +} + +// AddASN1BitString appends a DER-encoded ASN.1 BIT STRING. This does not +// support BIT STRINGs that are not a whole number of bytes. +func (b *Builder) AddASN1BitString(data []byte) { + b.AddASN1(asn1.BIT_STRING, func(b *Builder) { + b.AddUint8(0) + b.AddBytes(data) + }) +} + +func (b *Builder) addBase128Int(n int64) { + var length int + if n == 0 { + length = 1 + } else { + for i := n; i > 0; i >>= 7 { + length++ + } + } + + for i := length - 1; i >= 0; i-- { + o := byte(n >> uint(i*7)) + o &= 0x7f + if i != 0 { + o |= 0x80 + } + + b.add(o) + } +} + +func isValidOID(oid encoding_asn1.ObjectIdentifier) bool { + if len(oid) < 2 { + return false + } + + if oid[0] > 2 || (oid[0] <= 1 && oid[1] >= 40) { + return false + } + + for _, v := range oid { + if v < 0 { + return false + } + } + + return true +} + +func (b *Builder) AddASN1ObjectIdentifier(oid encoding_asn1.ObjectIdentifier) { + b.AddASN1(asn1.OBJECT_IDENTIFIER, func(b *Builder) { + if !isValidOID(oid) { + b.err = fmt.Errorf("cryptobyte: invalid OID: %v", oid) + return + } + + b.addBase128Int(int64(oid[0])*40 + int64(oid[1])) + for _, v := range oid[2:] { + b.addBase128Int(int64(v)) + } + }) +} + +func (b *Builder) AddASN1Boolean(v bool) { + b.AddASN1(asn1.BOOLEAN, func(b *Builder) { + if v { + b.AddUint8(0xff) + } else { + b.AddUint8(0) + } + }) +} + +func (b *Builder) AddASN1NULL() { + b.add(uint8(asn1.NULL), 0) +} + +// MarshalASN1 calls encoding_asn1.Marshal on its input and appends the result if +// successful or records an error if one occurred. +func (b *Builder) MarshalASN1(v interface{}) { + // NOTE(martinkr): This is somewhat of a hack to allow propagation of + // encoding_asn1.Marshal errors into Builder.err. N.B. if you call MarshalASN1 with a + // value embedded into a struct, its tag information is lost. + if b.err != nil { + return + } + bytes, err := encoding_asn1.Marshal(v) + if err != nil { + b.err = err + return + } + b.AddBytes(bytes) +} + +// AddASN1 appends an ASN.1 object. The object is prefixed with the given tag. +// Tags greater than 30 are not supported and result in an error (i.e. +// low-tag-number form only). The child builder passed to the +// BuilderContinuation can be used to build the content of the ASN.1 object. +func (b *Builder) AddASN1(tag asn1.Tag, f BuilderContinuation) { + if b.err != nil { + return + } + // Identifiers with the low five bits set indicate high-tag-number format + // (two or more octets), which we don't support. + if tag&0x1f == 0x1f { + b.err = fmt.Errorf("cryptobyte: high-tag number identifier octects not supported: 0x%x", tag) + return + } + b.AddUint8(uint8(tag)) + b.addLengthPrefixed(1, true, f) +} + +// String + +// ReadASN1Boolean decodes an ASN.1 BOOLEAN and converts it to a boolean +// representation into out and advances. It reports whether the read +// was successful. +func (s *String) ReadASN1Boolean(out *bool) bool { + var bytes String + if !s.ReadASN1(&bytes, asn1.BOOLEAN) || len(bytes) != 1 { + return false + } + + switch bytes[0] { + case 0: + *out = false + case 0xff: + *out = true + default: + return false + } + + return true +} + +var bigIntType = reflect.TypeOf((*big.Int)(nil)).Elem() + +// ReadASN1Integer decodes an ASN.1 INTEGER into out and advances. If out does +// not point to an integer or to a big.Int, it panics. It reports whether the +// read was successful. +func (s *String) ReadASN1Integer(out interface{}) bool { + if reflect.TypeOf(out).Kind() != reflect.Ptr { + panic("out is not a pointer") + } + switch reflect.ValueOf(out).Elem().Kind() { + case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: + var i int64 + if !s.readASN1Int64(&i) || reflect.ValueOf(out).Elem().OverflowInt(i) { + return false + } + reflect.ValueOf(out).Elem().SetInt(i) + return true + case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64: + var u uint64 + if !s.readASN1Uint64(&u) || reflect.ValueOf(out).Elem().OverflowUint(u) { + return false + } + reflect.ValueOf(out).Elem().SetUint(u) + return true + case reflect.Struct: + if reflect.TypeOf(out).Elem() == bigIntType { + return s.readASN1BigInt(out.(*big.Int)) + } + } + panic("out does not point to an integer type") +} + +func checkASN1Integer(bytes []byte) bool { + if len(bytes) == 0 { + // An INTEGER is encoded with at least one octet. + return false + } + if len(bytes) == 1 { + return true + } + if bytes[0] == 0 && bytes[1]&0x80 == 0 || bytes[0] == 0xff && bytes[1]&0x80 == 0x80 { + // Value is not minimally encoded. + return false + } + return true +} + +var bigOne = big.NewInt(1) + +func (s *String) readASN1BigInt(out *big.Int) bool { + var bytes String + if !s.ReadASN1(&bytes, asn1.INTEGER) || !checkASN1Integer(bytes) { + return false + } + if bytes[0]&0x80 == 0x80 { + // Negative number. + neg := make([]byte, len(bytes)) + for i, b := range bytes { + neg[i] = ^b + } + out.SetBytes(neg) + out.Add(out, bigOne) + out.Neg(out) + } else { + out.SetBytes(bytes) + } + return true +} + +func (s *String) readASN1Int64(out *int64) bool { + var bytes String + if !s.ReadASN1(&bytes, asn1.INTEGER) || !checkASN1Integer(bytes) || !asn1Signed(out, bytes) { + return false + } + return true +} + +func asn1Signed(out *int64, n []byte) bool { + length := len(n) + if length > 8 { + return false + } + for i := 0; i < length; i++ { + *out <<= 8 + *out |= int64(n[i]) + } + // Shift up and down in order to sign extend the result. + *out <<= 64 - uint8(length)*8 + *out >>= 64 - uint8(length)*8 + return true +} + +func (s *String) readASN1Uint64(out *uint64) bool { + var bytes String + if !s.ReadASN1(&bytes, asn1.INTEGER) || !checkASN1Integer(bytes) || !asn1Unsigned(out, bytes) { + return false + } + return true +} + +func asn1Unsigned(out *uint64, n []byte) bool { + length := len(n) + if length > 9 || length == 9 && n[0] != 0 { + // Too large for uint64. + return false + } + if n[0]&0x80 != 0 { + // Negative number. + return false + } + for i := 0; i < length; i++ { + *out <<= 8 + *out |= uint64(n[i]) + } + return true +} + +// ReadASN1Int64WithTag decodes an ASN.1 INTEGER with the given tag into out +// and advances. It reports whether the read was successful and resulted in a +// value that can be represented in an int64. +func (s *String) ReadASN1Int64WithTag(out *int64, tag asn1.Tag) bool { + var bytes String + return s.ReadASN1(&bytes, tag) && checkASN1Integer(bytes) && asn1Signed(out, bytes) +} + +// ReadASN1Enum decodes an ASN.1 ENUMERATION into out and advances. It reports +// whether the read was successful. +func (s *String) ReadASN1Enum(out *int) bool { + var bytes String + var i int64 + if !s.ReadASN1(&bytes, asn1.ENUM) || !checkASN1Integer(bytes) || !asn1Signed(&i, bytes) { + return false + } + if int64(int(i)) != i { + return false + } + *out = int(i) + return true +} + +func (s *String) readBase128Int(out *int) bool { + ret := 0 + for i := 0; len(*s) > 0; i++ { + if i == 4 { + return false + } + ret <<= 7 + b := s.read(1)[0] + ret |= int(b & 0x7f) + if b&0x80 == 0 { + *out = ret + return true + } + } + return false // truncated +} + +// ReadASN1ObjectIdentifier decodes an ASN.1 OBJECT IDENTIFIER into out and +// advances. It reports whether the read was successful. +func (s *String) ReadASN1ObjectIdentifier(out *encoding_asn1.ObjectIdentifier) bool { + var bytes String + if !s.ReadASN1(&bytes, asn1.OBJECT_IDENTIFIER) || len(bytes) == 0 { + return false + } + + // In the worst case, we get two elements from the first byte (which is + // encoded differently) and then every varint is a single byte long. + components := make([]int, len(bytes)+1) + + // The first varint is 40*value1 + value2: + // According to this packing, value1 can take the values 0, 1 and 2 only. + // When value1 = 0 or value1 = 1, then value2 is <= 39. When value1 = 2, + // then there are no restrictions on value2. + var v int + if !bytes.readBase128Int(&v) { + return false + } + if v < 80 { + components[0] = v / 40 + components[1] = v % 40 + } else { + components[0] = 2 + components[1] = v - 80 + } + + i := 2 + for ; len(bytes) > 0; i++ { + if !bytes.readBase128Int(&v) { + return false + } + components[i] = v + } + *out = components[:i] + return true +} + +// ReadASN1GeneralizedTime decodes an ASN.1 GENERALIZEDTIME into out and +// advances. It reports whether the read was successful. +func (s *String) ReadASN1GeneralizedTime(out *time.Time) bool { + var bytes String + if !s.ReadASN1(&bytes, asn1.GeneralizedTime) { + return false + } + t := string(bytes) + res, err := time.Parse(generalizedTimeFormatStr, t) + if err != nil { + return false + } + if serialized := res.Format(generalizedTimeFormatStr); serialized != t { + return false + } + *out = res + return true +} + +const defaultUTCTimeFormatStr = "060102150405Z0700" + +// ReadASN1UTCTime decodes an ASN.1 UTCTime into out and advances. +// It reports whether the read was successful. +func (s *String) ReadASN1UTCTime(out *time.Time) bool { + var bytes String + if !s.ReadASN1(&bytes, asn1.UTCTime) { + return false + } + t := string(bytes) + + formatStr := defaultUTCTimeFormatStr + var err error + res, err := time.Parse(formatStr, t) + if err != nil { + // Fallback to minute precision if we can't parse second + // precision. If we are following X.509 or X.690 we shouldn't + // support this, but we do. + formatStr = "0601021504Z0700" + res, err = time.Parse(formatStr, t) + } + if err != nil { + return false + } + + if serialized := res.Format(formatStr); serialized != t { + return false + } + + if res.Year() >= 2050 { + // UTCTime interprets the low order digits 50-99 as 1950-99. + // This only applies to its use in the X.509 profile. + // See https://tools.ietf.org/html/rfc5280#section-4.1.2.5.1 + res = res.AddDate(-100, 0, 0) + } + *out = res + return true +} + +// ReadASN1BitString decodes an ASN.1 BIT STRING into out and advances. +// It reports whether the read was successful. +func (s *String) ReadASN1BitString(out *encoding_asn1.BitString) bool { + var bytes String + if !s.ReadASN1(&bytes, asn1.BIT_STRING) || len(bytes) == 0 || + len(bytes)*8/8 != len(bytes) { + return false + } + + paddingBits := uint8(bytes[0]) + bytes = bytes[1:] + if paddingBits > 7 || + len(bytes) == 0 && paddingBits != 0 || + len(bytes) > 0 && bytes[len(bytes)-1]&(1< 4 || len(*s) < int(2+lenLen) { + return false + } + + lenBytes := String((*s)[2 : 2+lenLen]) + if !lenBytes.readUnsigned(&len32, int(lenLen)) { + return false + } + + // ITU-T X.690 section 10.1 (DER length forms) requires encoding the length + // with the minimum number of octets. + if len32 < 128 { + // Length should have used short-form encoding. + return false + } + if len32>>((lenLen-1)*8) == 0 { + // Leading octet is 0. Length should have been at least one byte shorter. + return false + } + + headerLen = 2 + uint32(lenLen) + if headerLen+len32 < len32 { + // Overflow. + return false + } + length = headerLen + len32 + } + + if int(length) < 0 || !s.ReadBytes((*[]byte)(out), int(length)) { + return false + } + if skipHeader && !out.Skip(int(headerLen)) { + panic("cryptobyte: internal error") + } + + return true +} diff --git a/vendor/golang.org/x/crypto/cryptobyte/asn1/asn1.go b/vendor/golang.org/x/crypto/cryptobyte/asn1/asn1.go new file mode 100644 index 0000000000000..cda8e3edfd5ea --- /dev/null +++ b/vendor/golang.org/x/crypto/cryptobyte/asn1/asn1.go @@ -0,0 +1,46 @@ +// Copyright 2017 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// Package asn1 contains supporting types for parsing and building ASN.1 +// messages with the cryptobyte package. +package asn1 // import "golang.org/x/crypto/cryptobyte/asn1" + +// Tag represents an ASN.1 identifier octet, consisting of a tag number +// (indicating a type) and class (such as context-specific or constructed). +// +// Methods in the cryptobyte package only support the low-tag-number form, i.e. +// a single identifier octet with bits 7-8 encoding the class and bits 1-6 +// encoding the tag number. +type Tag uint8 + +const ( + classConstructed = 0x20 + classContextSpecific = 0x80 +) + +// Constructed returns t with the constructed class bit set. +func (t Tag) Constructed() Tag { return t | classConstructed } + +// ContextSpecific returns t with the context-specific class bit set. +func (t Tag) ContextSpecific() Tag { return t | classContextSpecific } + +// The following is a list of standard tag and class combinations. +const ( + BOOLEAN = Tag(1) + INTEGER = Tag(2) + BIT_STRING = Tag(3) + OCTET_STRING = Tag(4) + NULL = Tag(5) + OBJECT_IDENTIFIER = Tag(6) + ENUM = Tag(10) + UTF8String = Tag(12) + SEQUENCE = Tag(16 | classConstructed) + SET = Tag(17 | classConstructed) + PrintableString = Tag(19) + T61String = Tag(20) + IA5String = Tag(22) + UTCTime = Tag(23) + GeneralizedTime = Tag(24) + GeneralString = Tag(27) +) diff --git a/vendor/golang.org/x/crypto/cryptobyte/builder.go b/vendor/golang.org/x/crypto/cryptobyte/builder.go new file mode 100644 index 0000000000000..ca7b1db5ce9d1 --- /dev/null +++ b/vendor/golang.org/x/crypto/cryptobyte/builder.go @@ -0,0 +1,337 @@ +// Copyright 2017 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package cryptobyte + +import ( + "errors" + "fmt" +) + +// A Builder builds byte strings from fixed-length and length-prefixed values. +// Builders either allocate space as needed, or are ‘fixed’, which means that +// they write into a given buffer and produce an error if it's exhausted. +// +// The zero value is a usable Builder that allocates space as needed. +// +// Simple values are marshaled and appended to a Builder using methods on the +// Builder. Length-prefixed values are marshaled by providing a +// BuilderContinuation, which is a function that writes the inner contents of +// the value to a given Builder. See the documentation for BuilderContinuation +// for details. +type Builder struct { + err error + result []byte + fixedSize bool + child *Builder + offset int + pendingLenLen int + pendingIsASN1 bool + inContinuation *bool +} + +// NewBuilder creates a Builder that appends its output to the given buffer. +// Like append(), the slice will be reallocated if its capacity is exceeded. +// Use Bytes to get the final buffer. +func NewBuilder(buffer []byte) *Builder { + return &Builder{ + result: buffer, + } +} + +// NewFixedBuilder creates a Builder that appends its output into the given +// buffer. This builder does not reallocate the output buffer. Writes that +// would exceed the buffer's capacity are treated as an error. +func NewFixedBuilder(buffer []byte) *Builder { + return &Builder{ + result: buffer, + fixedSize: true, + } +} + +// SetError sets the value to be returned as the error from Bytes. Writes +// performed after calling SetError are ignored. +func (b *Builder) SetError(err error) { + b.err = err +} + +// Bytes returns the bytes written by the builder or an error if one has +// occurred during building. +func (b *Builder) Bytes() ([]byte, error) { + if b.err != nil { + return nil, b.err + } + return b.result[b.offset:], nil +} + +// BytesOrPanic returns the bytes written by the builder or panics if an error +// has occurred during building. +func (b *Builder) BytesOrPanic() []byte { + if b.err != nil { + panic(b.err) + } + return b.result[b.offset:] +} + +// AddUint8 appends an 8-bit value to the byte string. +func (b *Builder) AddUint8(v uint8) { + b.add(byte(v)) +} + +// AddUint16 appends a big-endian, 16-bit value to the byte string. +func (b *Builder) AddUint16(v uint16) { + b.add(byte(v>>8), byte(v)) +} + +// AddUint24 appends a big-endian, 24-bit value to the byte string. The highest +// byte of the 32-bit input value is silently truncated. +func (b *Builder) AddUint24(v uint32) { + b.add(byte(v>>16), byte(v>>8), byte(v)) +} + +// AddUint32 appends a big-endian, 32-bit value to the byte string. +func (b *Builder) AddUint32(v uint32) { + b.add(byte(v>>24), byte(v>>16), byte(v>>8), byte(v)) +} + +// AddBytes appends a sequence of bytes to the byte string. +func (b *Builder) AddBytes(v []byte) { + b.add(v...) +} + +// BuilderContinuation is a continuation-passing interface for building +// length-prefixed byte sequences. Builder methods for length-prefixed +// sequences (AddUint8LengthPrefixed etc) will invoke the BuilderContinuation +// supplied to them. The child builder passed to the continuation can be used +// to build the content of the length-prefixed sequence. For example: +// +// parent := cryptobyte.NewBuilder() +// parent.AddUint8LengthPrefixed(func (child *Builder) { +// child.AddUint8(42) +// child.AddUint8LengthPrefixed(func (grandchild *Builder) { +// grandchild.AddUint8(5) +// }) +// }) +// +// It is an error to write more bytes to the child than allowed by the reserved +// length prefix. After the continuation returns, the child must be considered +// invalid, i.e. users must not store any copies or references of the child +// that outlive the continuation. +// +// If the continuation panics with a value of type BuildError then the inner +// error will be returned as the error from Bytes. If the child panics +// otherwise then Bytes will repanic with the same value. +type BuilderContinuation func(child *Builder) + +// BuildError wraps an error. If a BuilderContinuation panics with this value, +// the panic will be recovered and the inner error will be returned from +// Builder.Bytes. +type BuildError struct { + Err error +} + +// AddUint8LengthPrefixed adds a 8-bit length-prefixed byte sequence. +func (b *Builder) AddUint8LengthPrefixed(f BuilderContinuation) { + b.addLengthPrefixed(1, false, f) +} + +// AddUint16LengthPrefixed adds a big-endian, 16-bit length-prefixed byte sequence. +func (b *Builder) AddUint16LengthPrefixed(f BuilderContinuation) { + b.addLengthPrefixed(2, false, f) +} + +// AddUint24LengthPrefixed adds a big-endian, 24-bit length-prefixed byte sequence. +func (b *Builder) AddUint24LengthPrefixed(f BuilderContinuation) { + b.addLengthPrefixed(3, false, f) +} + +// AddUint32LengthPrefixed adds a big-endian, 32-bit length-prefixed byte sequence. +func (b *Builder) AddUint32LengthPrefixed(f BuilderContinuation) { + b.addLengthPrefixed(4, false, f) +} + +func (b *Builder) callContinuation(f BuilderContinuation, arg *Builder) { + if !*b.inContinuation { + *b.inContinuation = true + + defer func() { + *b.inContinuation = false + + r := recover() + if r == nil { + return + } + + if buildError, ok := r.(BuildError); ok { + b.err = buildError.Err + } else { + panic(r) + } + }() + } + + f(arg) +} + +func (b *Builder) addLengthPrefixed(lenLen int, isASN1 bool, f BuilderContinuation) { + // Subsequent writes can be ignored if the builder has encountered an error. + if b.err != nil { + return + } + + offset := len(b.result) + b.add(make([]byte, lenLen)...) + + if b.inContinuation == nil { + b.inContinuation = new(bool) + } + + b.child = &Builder{ + result: b.result, + fixedSize: b.fixedSize, + offset: offset, + pendingLenLen: lenLen, + pendingIsASN1: isASN1, + inContinuation: b.inContinuation, + } + + b.callContinuation(f, b.child) + b.flushChild() + if b.child != nil { + panic("cryptobyte: internal error") + } +} + +func (b *Builder) flushChild() { + if b.child == nil { + return + } + b.child.flushChild() + child := b.child + b.child = nil + + if child.err != nil { + b.err = child.err + return + } + + length := len(child.result) - child.pendingLenLen - child.offset + + if length < 0 { + panic("cryptobyte: internal error") // result unexpectedly shrunk + } + + if child.pendingIsASN1 { + // For ASN.1, we reserved a single byte for the length. If that turned out + // to be incorrect, we have to move the contents along in order to make + // space. + if child.pendingLenLen != 1 { + panic("cryptobyte: internal error") + } + var lenLen, lenByte uint8 + if int64(length) > 0xfffffffe { + b.err = errors.New("pending ASN.1 child too long") + return + } else if length > 0xffffff { + lenLen = 5 + lenByte = 0x80 | 4 + } else if length > 0xffff { + lenLen = 4 + lenByte = 0x80 | 3 + } else if length > 0xff { + lenLen = 3 + lenByte = 0x80 | 2 + } else if length > 0x7f { + lenLen = 2 + lenByte = 0x80 | 1 + } else { + lenLen = 1 + lenByte = uint8(length) + length = 0 + } + + // Insert the initial length byte, make space for successive length bytes, + // and adjust the offset. + child.result[child.offset] = lenByte + extraBytes := int(lenLen - 1) + if extraBytes != 0 { + child.add(make([]byte, extraBytes)...) + childStart := child.offset + child.pendingLenLen + copy(child.result[childStart+extraBytes:], child.result[childStart:]) + } + child.offset++ + child.pendingLenLen = extraBytes + } + + l := length + for i := child.pendingLenLen - 1; i >= 0; i-- { + child.result[child.offset+i] = uint8(l) + l >>= 8 + } + if l != 0 { + b.err = fmt.Errorf("cryptobyte: pending child length %d exceeds %d-byte length prefix", length, child.pendingLenLen) + return + } + + if b.fixedSize && &b.result[0] != &child.result[0] { + panic("cryptobyte: BuilderContinuation reallocated a fixed-size buffer") + } + + b.result = child.result +} + +func (b *Builder) add(bytes ...byte) { + if b.err != nil { + return + } + if b.child != nil { + panic("cryptobyte: attempted write while child is pending") + } + if len(b.result)+len(bytes) < len(bytes) { + b.err = errors.New("cryptobyte: length overflow") + } + if b.fixedSize && len(b.result)+len(bytes) > cap(b.result) { + b.err = errors.New("cryptobyte: Builder is exceeding its fixed-size buffer") + return + } + b.result = append(b.result, bytes...) +} + +// Unwrite rolls back n bytes written directly to the Builder. An attempt by a +// child builder passed to a continuation to unwrite bytes from its parent will +// panic. +func (b *Builder) Unwrite(n int) { + if b.err != nil { + return + } + if b.child != nil { + panic("cryptobyte: attempted unwrite while child is pending") + } + length := len(b.result) - b.pendingLenLen - b.offset + if length < 0 { + panic("cryptobyte: internal error") + } + if n > length { + panic("cryptobyte: attempted to unwrite more than was written") + } + b.result = b.result[:len(b.result)-n] +} + +// A MarshalingValue marshals itself into a Builder. +type MarshalingValue interface { + // Marshal is called by Builder.AddValue. It receives a pointer to a builder + // to marshal itself into. It may return an error that occurred during + // marshaling, such as unset or invalid values. + Marshal(b *Builder) error +} + +// AddValue calls Marshal on v, passing a pointer to the builder to append to. +// If Marshal returns an error, it is set on the Builder so that subsequent +// appends don't have an effect. +func (b *Builder) AddValue(v MarshalingValue) { + err := v.Marshal(b) + if err != nil { + b.err = err + } +} diff --git a/vendor/golang.org/x/crypto/cryptobyte/string.go b/vendor/golang.org/x/crypto/cryptobyte/string.go new file mode 100644 index 0000000000000..589d297e6be8f --- /dev/null +++ b/vendor/golang.org/x/crypto/cryptobyte/string.go @@ -0,0 +1,161 @@ +// Copyright 2017 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// Package cryptobyte contains types that help with parsing and constructing +// length-prefixed, binary messages, including ASN.1 DER. (The asn1 subpackage +// contains useful ASN.1 constants.) +// +// The String type is for parsing. It wraps a []byte slice and provides helper +// functions for consuming structures, value by value. +// +// The Builder type is for constructing messages. It providers helper functions +// for appending values and also for appending length-prefixed submessages – +// without having to worry about calculating the length prefix ahead of time. +// +// See the documentation and examples for the Builder and String types to get +// started. +package cryptobyte // import "golang.org/x/crypto/cryptobyte" + +// String represents a string of bytes. It provides methods for parsing +// fixed-length and length-prefixed values from it. +type String []byte + +// read advances a String by n bytes and returns them. If less than n bytes +// remain, it returns nil. +func (s *String) read(n int) []byte { + if len(*s) < n || n < 0 { + return nil + } + v := (*s)[:n] + *s = (*s)[n:] + return v +} + +// Skip advances the String by n byte and reports whether it was successful. +func (s *String) Skip(n int) bool { + return s.read(n) != nil +} + +// ReadUint8 decodes an 8-bit value into out and advances over it. +// It reports whether the read was successful. +func (s *String) ReadUint8(out *uint8) bool { + v := s.read(1) + if v == nil { + return false + } + *out = uint8(v[0]) + return true +} + +// ReadUint16 decodes a big-endian, 16-bit value into out and advances over it. +// It reports whether the read was successful. +func (s *String) ReadUint16(out *uint16) bool { + v := s.read(2) + if v == nil { + return false + } + *out = uint16(v[0])<<8 | uint16(v[1]) + return true +} + +// ReadUint24 decodes a big-endian, 24-bit value into out and advances over it. +// It reports whether the read was successful. +func (s *String) ReadUint24(out *uint32) bool { + v := s.read(3) + if v == nil { + return false + } + *out = uint32(v[0])<<16 | uint32(v[1])<<8 | uint32(v[2]) + return true +} + +// ReadUint32 decodes a big-endian, 32-bit value into out and advances over it. +// It reports whether the read was successful. +func (s *String) ReadUint32(out *uint32) bool { + v := s.read(4) + if v == nil { + return false + } + *out = uint32(v[0])<<24 | uint32(v[1])<<16 | uint32(v[2])<<8 | uint32(v[3]) + return true +} + +func (s *String) readUnsigned(out *uint32, length int) bool { + v := s.read(length) + if v == nil { + return false + } + var result uint32 + for i := 0; i < length; i++ { + result <<= 8 + result |= uint32(v[i]) + } + *out = result + return true +} + +func (s *String) readLengthPrefixed(lenLen int, outChild *String) bool { + lenBytes := s.read(lenLen) + if lenBytes == nil { + return false + } + var length uint32 + for _, b := range lenBytes { + length = length << 8 + length = length | uint32(b) + } + v := s.read(int(length)) + if v == nil { + return false + } + *outChild = v + return true +} + +// ReadUint8LengthPrefixed reads the content of an 8-bit length-prefixed value +// into out and advances over it. It reports whether the read was successful. +func (s *String) ReadUint8LengthPrefixed(out *String) bool { + return s.readLengthPrefixed(1, out) +} + +// ReadUint16LengthPrefixed reads the content of a big-endian, 16-bit +// length-prefixed value into out and advances over it. It reports whether the +// read was successful. +func (s *String) ReadUint16LengthPrefixed(out *String) bool { + return s.readLengthPrefixed(2, out) +} + +// ReadUint24LengthPrefixed reads the content of a big-endian, 24-bit +// length-prefixed value into out and advances over it. It reports whether +// the read was successful. +func (s *String) ReadUint24LengthPrefixed(out *String) bool { + return s.readLengthPrefixed(3, out) +} + +// ReadBytes reads n bytes into out and advances over them. It reports +// whether the read was successful. +func (s *String) ReadBytes(out *[]byte, n int) bool { + v := s.read(n) + if v == nil { + return false + } + *out = v + return true +} + +// CopyBytes copies len(out) bytes into out and advances over them. It reports +// whether the copy operation was successful +func (s *String) CopyBytes(out []byte) bool { + n := len(out) + v := s.read(n) + if v == nil { + return false + } + return copy(out, v) == n +} + +// Empty reports whether the string does not contain any bytes. +func (s String) Empty() bool { + return len(s) == 0 +} diff --git a/vendor/golang.org/x/crypto/pkcs12/bmp-string.go b/vendor/golang.org/x/crypto/pkcs12/bmp-string.go new file mode 100644 index 0000000000000..233b8b62cc270 --- /dev/null +++ b/vendor/golang.org/x/crypto/pkcs12/bmp-string.go @@ -0,0 +1,50 @@ +// Copyright 2015 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package pkcs12 + +import ( + "errors" + "unicode/utf16" +) + +// bmpString returns s encoded in UCS-2 with a zero terminator. +func bmpString(s string) ([]byte, error) { + // References: + // https://tools.ietf.org/html/rfc7292#appendix-B.1 + // https://en.wikipedia.org/wiki/Plane_(Unicode)#Basic_Multilingual_Plane + // - non-BMP characters are encoded in UTF 16 by using a surrogate pair of 16-bit codes + // EncodeRune returns 0xfffd if the rune does not need special encoding + // - the above RFC provides the info that BMPStrings are NULL terminated. + + ret := make([]byte, 0, 2*len(s)+2) + + for _, r := range s { + if t, _ := utf16.EncodeRune(r); t != 0xfffd { + return nil, errors.New("pkcs12: string contains characters that cannot be encoded in UCS-2") + } + ret = append(ret, byte(r/256), byte(r%256)) + } + + return append(ret, 0, 0), nil +} + +func decodeBMPString(bmpString []byte) (string, error) { + if len(bmpString)%2 != 0 { + return "", errors.New("pkcs12: odd-length BMP string") + } + + // strip terminator if present + if l := len(bmpString); l >= 2 && bmpString[l-1] == 0 && bmpString[l-2] == 0 { + bmpString = bmpString[:l-2] + } + + s := make([]uint16, 0, len(bmpString)/2) + for len(bmpString) > 0 { + s = append(s, uint16(bmpString[0])<<8+uint16(bmpString[1])) + bmpString = bmpString[2:] + } + + return string(utf16.Decode(s)), nil +} diff --git a/vendor/golang.org/x/crypto/pkcs12/crypto.go b/vendor/golang.org/x/crypto/pkcs12/crypto.go new file mode 100644 index 0000000000000..484ca51b71542 --- /dev/null +++ b/vendor/golang.org/x/crypto/pkcs12/crypto.go @@ -0,0 +1,131 @@ +// Copyright 2015 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package pkcs12 + +import ( + "bytes" + "crypto/cipher" + "crypto/des" + "crypto/x509/pkix" + "encoding/asn1" + "errors" + + "golang.org/x/crypto/pkcs12/internal/rc2" +) + +var ( + oidPBEWithSHAAnd3KeyTripleDESCBC = asn1.ObjectIdentifier([]int{1, 2, 840, 113549, 1, 12, 1, 3}) + oidPBEWithSHAAnd40BitRC2CBC = asn1.ObjectIdentifier([]int{1, 2, 840, 113549, 1, 12, 1, 6}) +) + +// pbeCipher is an abstraction of a PKCS#12 cipher. +type pbeCipher interface { + // create returns a cipher.Block given a key. + create(key []byte) (cipher.Block, error) + // deriveKey returns a key derived from the given password and salt. + deriveKey(salt, password []byte, iterations int) []byte + // deriveKey returns an IV derived from the given password and salt. + deriveIV(salt, password []byte, iterations int) []byte +} + +type shaWithTripleDESCBC struct{} + +func (shaWithTripleDESCBC) create(key []byte) (cipher.Block, error) { + return des.NewTripleDESCipher(key) +} + +func (shaWithTripleDESCBC) deriveKey(salt, password []byte, iterations int) []byte { + return pbkdf(sha1Sum, 20, 64, salt, password, iterations, 1, 24) +} + +func (shaWithTripleDESCBC) deriveIV(salt, password []byte, iterations int) []byte { + return pbkdf(sha1Sum, 20, 64, salt, password, iterations, 2, 8) +} + +type shaWith40BitRC2CBC struct{} + +func (shaWith40BitRC2CBC) create(key []byte) (cipher.Block, error) { + return rc2.New(key, len(key)*8) +} + +func (shaWith40BitRC2CBC) deriveKey(salt, password []byte, iterations int) []byte { + return pbkdf(sha1Sum, 20, 64, salt, password, iterations, 1, 5) +} + +func (shaWith40BitRC2CBC) deriveIV(salt, password []byte, iterations int) []byte { + return pbkdf(sha1Sum, 20, 64, salt, password, iterations, 2, 8) +} + +type pbeParams struct { + Salt []byte + Iterations int +} + +func pbDecrypterFor(algorithm pkix.AlgorithmIdentifier, password []byte) (cipher.BlockMode, int, error) { + var cipherType pbeCipher + + switch { + case algorithm.Algorithm.Equal(oidPBEWithSHAAnd3KeyTripleDESCBC): + cipherType = shaWithTripleDESCBC{} + case algorithm.Algorithm.Equal(oidPBEWithSHAAnd40BitRC2CBC): + cipherType = shaWith40BitRC2CBC{} + default: + return nil, 0, NotImplementedError("algorithm " + algorithm.Algorithm.String() + " is not supported") + } + + var params pbeParams + if err := unmarshal(algorithm.Parameters.FullBytes, ¶ms); err != nil { + return nil, 0, err + } + + key := cipherType.deriveKey(params.Salt, password, params.Iterations) + iv := cipherType.deriveIV(params.Salt, password, params.Iterations) + + block, err := cipherType.create(key) + if err != nil { + return nil, 0, err + } + + return cipher.NewCBCDecrypter(block, iv), block.BlockSize(), nil +} + +func pbDecrypt(info decryptable, password []byte) (decrypted []byte, err error) { + cbc, blockSize, err := pbDecrypterFor(info.Algorithm(), password) + if err != nil { + return nil, err + } + + encrypted := info.Data() + if len(encrypted) == 0 { + return nil, errors.New("pkcs12: empty encrypted data") + } + if len(encrypted)%blockSize != 0 { + return nil, errors.New("pkcs12: input is not a multiple of the block size") + } + decrypted = make([]byte, len(encrypted)) + cbc.CryptBlocks(decrypted, encrypted) + + psLen := int(decrypted[len(decrypted)-1]) + if psLen == 0 || psLen > blockSize { + return nil, ErrDecryption + } + + if len(decrypted) < psLen { + return nil, ErrDecryption + } + ps := decrypted[len(decrypted)-psLen:] + decrypted = decrypted[:len(decrypted)-psLen] + if bytes.Compare(ps, bytes.Repeat([]byte{byte(psLen)}, psLen)) != 0 { + return nil, ErrDecryption + } + + return +} + +// decryptable abstracts an object that contains ciphertext. +type decryptable interface { + Algorithm() pkix.AlgorithmIdentifier + Data() []byte +} diff --git a/vendor/golang.org/x/crypto/pkcs12/errors.go b/vendor/golang.org/x/crypto/pkcs12/errors.go new file mode 100644 index 0000000000000..7377ce6fb2b81 --- /dev/null +++ b/vendor/golang.org/x/crypto/pkcs12/errors.go @@ -0,0 +1,23 @@ +// Copyright 2015 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package pkcs12 + +import "errors" + +var ( + // ErrDecryption represents a failure to decrypt the input. + ErrDecryption = errors.New("pkcs12: decryption error, incorrect padding") + + // ErrIncorrectPassword is returned when an incorrect password is detected. + // Usually, P12/PFX data is signed to be able to verify the password. + ErrIncorrectPassword = errors.New("pkcs12: decryption password incorrect") +) + +// NotImplementedError indicates that the input is not currently supported. +type NotImplementedError string + +func (e NotImplementedError) Error() string { + return "pkcs12: " + string(e) +} diff --git a/vendor/golang.org/x/crypto/pkcs12/internal/rc2/rc2.go b/vendor/golang.org/x/crypto/pkcs12/internal/rc2/rc2.go new file mode 100644 index 0000000000000..7499e3fb69d2d --- /dev/null +++ b/vendor/golang.org/x/crypto/pkcs12/internal/rc2/rc2.go @@ -0,0 +1,271 @@ +// Copyright 2015 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// Package rc2 implements the RC2 cipher +/* +https://www.ietf.org/rfc/rfc2268.txt +http://people.csail.mit.edu/rivest/pubs/KRRR98.pdf + +This code is licensed under the MIT license. +*/ +package rc2 + +import ( + "crypto/cipher" + "encoding/binary" +) + +// The rc2 block size in bytes +const BlockSize = 8 + +type rc2Cipher struct { + k [64]uint16 +} + +// New returns a new rc2 cipher with the given key and effective key length t1 +func New(key []byte, t1 int) (cipher.Block, error) { + // TODO(dgryski): error checking for key length + return &rc2Cipher{ + k: expandKey(key, t1), + }, nil +} + +func (*rc2Cipher) BlockSize() int { return BlockSize } + +var piTable = [256]byte{ + 0xd9, 0x78, 0xf9, 0xc4, 0x19, 0xdd, 0xb5, 0xed, 0x28, 0xe9, 0xfd, 0x79, 0x4a, 0xa0, 0xd8, 0x9d, + 0xc6, 0x7e, 0x37, 0x83, 0x2b, 0x76, 0x53, 0x8e, 0x62, 0x4c, 0x64, 0x88, 0x44, 0x8b, 0xfb, 0xa2, + 0x17, 0x9a, 0x59, 0xf5, 0x87, 0xb3, 0x4f, 0x13, 0x61, 0x45, 0x6d, 0x8d, 0x09, 0x81, 0x7d, 0x32, + 0xbd, 0x8f, 0x40, 0xeb, 0x86, 0xb7, 0x7b, 0x0b, 0xf0, 0x95, 0x21, 0x22, 0x5c, 0x6b, 0x4e, 0x82, + 0x54, 0xd6, 0x65, 0x93, 0xce, 0x60, 0xb2, 0x1c, 0x73, 0x56, 0xc0, 0x14, 0xa7, 0x8c, 0xf1, 0xdc, + 0x12, 0x75, 0xca, 0x1f, 0x3b, 0xbe, 0xe4, 0xd1, 0x42, 0x3d, 0xd4, 0x30, 0xa3, 0x3c, 0xb6, 0x26, + 0x6f, 0xbf, 0x0e, 0xda, 0x46, 0x69, 0x07, 0x57, 0x27, 0xf2, 0x1d, 0x9b, 0xbc, 0x94, 0x43, 0x03, + 0xf8, 0x11, 0xc7, 0xf6, 0x90, 0xef, 0x3e, 0xe7, 0x06, 0xc3, 0xd5, 0x2f, 0xc8, 0x66, 0x1e, 0xd7, + 0x08, 0xe8, 0xea, 0xde, 0x80, 0x52, 0xee, 0xf7, 0x84, 0xaa, 0x72, 0xac, 0x35, 0x4d, 0x6a, 0x2a, + 0x96, 0x1a, 0xd2, 0x71, 0x5a, 0x15, 0x49, 0x74, 0x4b, 0x9f, 0xd0, 0x5e, 0x04, 0x18, 0xa4, 0xec, + 0xc2, 0xe0, 0x41, 0x6e, 0x0f, 0x51, 0xcb, 0xcc, 0x24, 0x91, 0xaf, 0x50, 0xa1, 0xf4, 0x70, 0x39, + 0x99, 0x7c, 0x3a, 0x85, 0x23, 0xb8, 0xb4, 0x7a, 0xfc, 0x02, 0x36, 0x5b, 0x25, 0x55, 0x97, 0x31, + 0x2d, 0x5d, 0xfa, 0x98, 0xe3, 0x8a, 0x92, 0xae, 0x05, 0xdf, 0x29, 0x10, 0x67, 0x6c, 0xba, 0xc9, + 0xd3, 0x00, 0xe6, 0xcf, 0xe1, 0x9e, 0xa8, 0x2c, 0x63, 0x16, 0x01, 0x3f, 0x58, 0xe2, 0x89, 0xa9, + 0x0d, 0x38, 0x34, 0x1b, 0xab, 0x33, 0xff, 0xb0, 0xbb, 0x48, 0x0c, 0x5f, 0xb9, 0xb1, 0xcd, 0x2e, + 0xc5, 0xf3, 0xdb, 0x47, 0xe5, 0xa5, 0x9c, 0x77, 0x0a, 0xa6, 0x20, 0x68, 0xfe, 0x7f, 0xc1, 0xad, +} + +func expandKey(key []byte, t1 int) [64]uint16 { + + l := make([]byte, 128) + copy(l, key) + + var t = len(key) + var t8 = (t1 + 7) / 8 + var tm = byte(255 % uint(1<<(8+uint(t1)-8*uint(t8)))) + + for i := len(key); i < 128; i++ { + l[i] = piTable[l[i-1]+l[uint8(i-t)]] + } + + l[128-t8] = piTable[l[128-t8]&tm] + + for i := 127 - t8; i >= 0; i-- { + l[i] = piTable[l[i+1]^l[i+t8]] + } + + var k [64]uint16 + + for i := range k { + k[i] = uint16(l[2*i]) + uint16(l[2*i+1])*256 + } + + return k +} + +func rotl16(x uint16, b uint) uint16 { + return (x >> (16 - b)) | (x << b) +} + +func (c *rc2Cipher) Encrypt(dst, src []byte) { + + r0 := binary.LittleEndian.Uint16(src[0:]) + r1 := binary.LittleEndian.Uint16(src[2:]) + r2 := binary.LittleEndian.Uint16(src[4:]) + r3 := binary.LittleEndian.Uint16(src[6:]) + + var j int + + for j <= 16 { + // mix r0 + r0 = r0 + c.k[j] + (r3 & r2) + ((^r3) & r1) + r0 = rotl16(r0, 1) + j++ + + // mix r1 + r1 = r1 + c.k[j] + (r0 & r3) + ((^r0) & r2) + r1 = rotl16(r1, 2) + j++ + + // mix r2 + r2 = r2 + c.k[j] + (r1 & r0) + ((^r1) & r3) + r2 = rotl16(r2, 3) + j++ + + // mix r3 + r3 = r3 + c.k[j] + (r2 & r1) + ((^r2) & r0) + r3 = rotl16(r3, 5) + j++ + + } + + r0 = r0 + c.k[r3&63] + r1 = r1 + c.k[r0&63] + r2 = r2 + c.k[r1&63] + r3 = r3 + c.k[r2&63] + + for j <= 40 { + // mix r0 + r0 = r0 + c.k[j] + (r3 & r2) + ((^r3) & r1) + r0 = rotl16(r0, 1) + j++ + + // mix r1 + r1 = r1 + c.k[j] + (r0 & r3) + ((^r0) & r2) + r1 = rotl16(r1, 2) + j++ + + // mix r2 + r2 = r2 + c.k[j] + (r1 & r0) + ((^r1) & r3) + r2 = rotl16(r2, 3) + j++ + + // mix r3 + r3 = r3 + c.k[j] + (r2 & r1) + ((^r2) & r0) + r3 = rotl16(r3, 5) + j++ + + } + + r0 = r0 + c.k[r3&63] + r1 = r1 + c.k[r0&63] + r2 = r2 + c.k[r1&63] + r3 = r3 + c.k[r2&63] + + for j <= 60 { + // mix r0 + r0 = r0 + c.k[j] + (r3 & r2) + ((^r3) & r1) + r0 = rotl16(r0, 1) + j++ + + // mix r1 + r1 = r1 + c.k[j] + (r0 & r3) + ((^r0) & r2) + r1 = rotl16(r1, 2) + j++ + + // mix r2 + r2 = r2 + c.k[j] + (r1 & r0) + ((^r1) & r3) + r2 = rotl16(r2, 3) + j++ + + // mix r3 + r3 = r3 + c.k[j] + (r2 & r1) + ((^r2) & r0) + r3 = rotl16(r3, 5) + j++ + } + + binary.LittleEndian.PutUint16(dst[0:], r0) + binary.LittleEndian.PutUint16(dst[2:], r1) + binary.LittleEndian.PutUint16(dst[4:], r2) + binary.LittleEndian.PutUint16(dst[6:], r3) +} + +func (c *rc2Cipher) Decrypt(dst, src []byte) { + + r0 := binary.LittleEndian.Uint16(src[0:]) + r1 := binary.LittleEndian.Uint16(src[2:]) + r2 := binary.LittleEndian.Uint16(src[4:]) + r3 := binary.LittleEndian.Uint16(src[6:]) + + j := 63 + + for j >= 44 { + // unmix r3 + r3 = rotl16(r3, 16-5) + r3 = r3 - c.k[j] - (r2 & r1) - ((^r2) & r0) + j-- + + // unmix r2 + r2 = rotl16(r2, 16-3) + r2 = r2 - c.k[j] - (r1 & r0) - ((^r1) & r3) + j-- + + // unmix r1 + r1 = rotl16(r1, 16-2) + r1 = r1 - c.k[j] - (r0 & r3) - ((^r0) & r2) + j-- + + // unmix r0 + r0 = rotl16(r0, 16-1) + r0 = r0 - c.k[j] - (r3 & r2) - ((^r3) & r1) + j-- + } + + r3 = r3 - c.k[r2&63] + r2 = r2 - c.k[r1&63] + r1 = r1 - c.k[r0&63] + r0 = r0 - c.k[r3&63] + + for j >= 20 { + // unmix r3 + r3 = rotl16(r3, 16-5) + r3 = r3 - c.k[j] - (r2 & r1) - ((^r2) & r0) + j-- + + // unmix r2 + r2 = rotl16(r2, 16-3) + r2 = r2 - c.k[j] - (r1 & r0) - ((^r1) & r3) + j-- + + // unmix r1 + r1 = rotl16(r1, 16-2) + r1 = r1 - c.k[j] - (r0 & r3) - ((^r0) & r2) + j-- + + // unmix r0 + r0 = rotl16(r0, 16-1) + r0 = r0 - c.k[j] - (r3 & r2) - ((^r3) & r1) + j-- + + } + + r3 = r3 - c.k[r2&63] + r2 = r2 - c.k[r1&63] + r1 = r1 - c.k[r0&63] + r0 = r0 - c.k[r3&63] + + for j >= 0 { + // unmix r3 + r3 = rotl16(r3, 16-5) + r3 = r3 - c.k[j] - (r2 & r1) - ((^r2) & r0) + j-- + + // unmix r2 + r2 = rotl16(r2, 16-3) + r2 = r2 - c.k[j] - (r1 & r0) - ((^r1) & r3) + j-- + + // unmix r1 + r1 = rotl16(r1, 16-2) + r1 = r1 - c.k[j] - (r0 & r3) - ((^r0) & r2) + j-- + + // unmix r0 + r0 = rotl16(r0, 16-1) + r0 = r0 - c.k[j] - (r3 & r2) - ((^r3) & r1) + j-- + + } + + binary.LittleEndian.PutUint16(dst[0:], r0) + binary.LittleEndian.PutUint16(dst[2:], r1) + binary.LittleEndian.PutUint16(dst[4:], r2) + binary.LittleEndian.PutUint16(dst[6:], r3) +} diff --git a/vendor/golang.org/x/crypto/pkcs12/mac.go b/vendor/golang.org/x/crypto/pkcs12/mac.go new file mode 100644 index 0000000000000..5f38aa7de83ce --- /dev/null +++ b/vendor/golang.org/x/crypto/pkcs12/mac.go @@ -0,0 +1,45 @@ +// Copyright 2015 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package pkcs12 + +import ( + "crypto/hmac" + "crypto/sha1" + "crypto/x509/pkix" + "encoding/asn1" +) + +type macData struct { + Mac digestInfo + MacSalt []byte + Iterations int `asn1:"optional,default:1"` +} + +// from PKCS#7: +type digestInfo struct { + Algorithm pkix.AlgorithmIdentifier + Digest []byte +} + +var ( + oidSHA1 = asn1.ObjectIdentifier([]int{1, 3, 14, 3, 2, 26}) +) + +func verifyMac(macData *macData, message, password []byte) error { + if !macData.Mac.Algorithm.Algorithm.Equal(oidSHA1) { + return NotImplementedError("unknown digest algorithm: " + macData.Mac.Algorithm.Algorithm.String()) + } + + key := pbkdf(sha1Sum, 20, 64, macData.MacSalt, password, macData.Iterations, 3, 20) + + mac := hmac.New(sha1.New, key) + mac.Write(message) + expectedMAC := mac.Sum(nil) + + if !hmac.Equal(macData.Mac.Digest, expectedMAC) { + return ErrIncorrectPassword + } + return nil +} diff --git a/vendor/golang.org/x/crypto/pkcs12/pbkdf.go b/vendor/golang.org/x/crypto/pkcs12/pbkdf.go new file mode 100644 index 0000000000000..5c419d41e32c2 --- /dev/null +++ b/vendor/golang.org/x/crypto/pkcs12/pbkdf.go @@ -0,0 +1,170 @@ +// Copyright 2015 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package pkcs12 + +import ( + "bytes" + "crypto/sha1" + "math/big" +) + +var ( + one = big.NewInt(1) +) + +// sha1Sum returns the SHA-1 hash of in. +func sha1Sum(in []byte) []byte { + sum := sha1.Sum(in) + return sum[:] +} + +// fillWithRepeats returns v*ceiling(len(pattern) / v) bytes consisting of +// repeats of pattern. +func fillWithRepeats(pattern []byte, v int) []byte { + if len(pattern) == 0 { + return nil + } + outputLen := v * ((len(pattern) + v - 1) / v) + return bytes.Repeat(pattern, (outputLen+len(pattern)-1)/len(pattern))[:outputLen] +} + +func pbkdf(hash func([]byte) []byte, u, v int, salt, password []byte, r int, ID byte, size int) (key []byte) { + // implementation of https://tools.ietf.org/html/rfc7292#appendix-B.2 , RFC text verbatim in comments + + // Let H be a hash function built around a compression function f: + + // Z_2^u x Z_2^v -> Z_2^u + + // (that is, H has a chaining variable and output of length u bits, and + // the message input to the compression function of H is v bits). The + // values for u and v are as follows: + + // HASH FUNCTION VALUE u VALUE v + // MD2, MD5 128 512 + // SHA-1 160 512 + // SHA-224 224 512 + // SHA-256 256 512 + // SHA-384 384 1024 + // SHA-512 512 1024 + // SHA-512/224 224 1024 + // SHA-512/256 256 1024 + + // Furthermore, let r be the iteration count. + + // We assume here that u and v are both multiples of 8, as are the + // lengths of the password and salt strings (which we denote by p and s, + // respectively) and the number n of pseudorandom bits required. In + // addition, u and v are of course non-zero. + + // For information on security considerations for MD5 [19], see [25] and + // [1], and on those for MD2, see [18]. + + // The following procedure can be used to produce pseudorandom bits for + // a particular "purpose" that is identified by a byte called "ID". + // This standard specifies 3 different values for the ID byte: + + // 1. If ID=1, then the pseudorandom bits being produced are to be used + // as key material for performing encryption or decryption. + + // 2. If ID=2, then the pseudorandom bits being produced are to be used + // as an IV (Initial Value) for encryption or decryption. + + // 3. If ID=3, then the pseudorandom bits being produced are to be used + // as an integrity key for MACing. + + // 1. Construct a string, D (the "diversifier"), by concatenating v/8 + // copies of ID. + var D []byte + for i := 0; i < v; i++ { + D = append(D, ID) + } + + // 2. Concatenate copies of the salt together to create a string S of + // length v(ceiling(s/v)) bits (the final copy of the salt may be + // truncated to create S). Note that if the salt is the empty + // string, then so is S. + + S := fillWithRepeats(salt, v) + + // 3. Concatenate copies of the password together to create a string P + // of length v(ceiling(p/v)) bits (the final copy of the password + // may be truncated to create P). Note that if the password is the + // empty string, then so is P. + + P := fillWithRepeats(password, v) + + // 4. Set I=S||P to be the concatenation of S and P. + I := append(S, P...) + + // 5. Set c=ceiling(n/u). + c := (size + u - 1) / u + + // 6. For i=1, 2, ..., c, do the following: + A := make([]byte, c*20) + var IjBuf []byte + for i := 0; i < c; i++ { + // A. Set A2=H^r(D||I). (i.e., the r-th hash of D||1, + // H(H(H(... H(D||I)))) + Ai := hash(append(D, I...)) + for j := 1; j < r; j++ { + Ai = hash(Ai) + } + copy(A[i*20:], Ai[:]) + + if i < c-1 { // skip on last iteration + // B. Concatenate copies of Ai to create a string B of length v + // bits (the final copy of Ai may be truncated to create B). + var B []byte + for len(B) < v { + B = append(B, Ai[:]...) + } + B = B[:v] + + // C. Treating I as a concatenation I_0, I_1, ..., I_(k-1) of v-bit + // blocks, where k=ceiling(s/v)+ceiling(p/v), modify I by + // setting I_j=(I_j+B+1) mod 2^v for each j. + { + Bbi := new(big.Int).SetBytes(B) + Ij := new(big.Int) + + for j := 0; j < len(I)/v; j++ { + Ij.SetBytes(I[j*v : (j+1)*v]) + Ij.Add(Ij, Bbi) + Ij.Add(Ij, one) + Ijb := Ij.Bytes() + // We expect Ijb to be exactly v bytes, + // if it is longer or shorter we must + // adjust it accordingly. + if len(Ijb) > v { + Ijb = Ijb[len(Ijb)-v:] + } + if len(Ijb) < v { + if IjBuf == nil { + IjBuf = make([]byte, v) + } + bytesShort := v - len(Ijb) + for i := 0; i < bytesShort; i++ { + IjBuf[i] = 0 + } + copy(IjBuf[bytesShort:], Ijb) + Ijb = IjBuf + } + copy(I[j*v:(j+1)*v], Ijb) + } + } + } + } + // 7. Concatenate A_1, A_2, ..., A_c together to form a pseudorandom + // bit string, A. + + // 8. Use the first n bits of A as the output of this entire process. + return A[:size] + + // If the above process is being used to generate a DES key, the process + // should be used to create 64 random bits, and the key's parity bits + // should be set after the 64 bits have been produced. Similar concerns + // hold for 2-key and 3-key triple-DES keys, for CDMF keys, and for any + // similar keys with parity bits "built into them". +} diff --git a/vendor/golang.org/x/crypto/pkcs12/pkcs12.go b/vendor/golang.org/x/crypto/pkcs12/pkcs12.go new file mode 100644 index 0000000000000..3a89bdb3e393b --- /dev/null +++ b/vendor/golang.org/x/crypto/pkcs12/pkcs12.go @@ -0,0 +1,360 @@ +// Copyright 2015 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// Package pkcs12 implements some of PKCS#12. +// +// This implementation is distilled from https://tools.ietf.org/html/rfc7292 +// and referenced documents. It is intended for decoding P12/PFX-stored +// certificates and keys for use with the crypto/tls package. +// +// This package is frozen. If it's missing functionality you need, consider +// an alternative like software.sslmate.com/src/go-pkcs12. +package pkcs12 + +import ( + "crypto/ecdsa" + "crypto/rsa" + "crypto/x509" + "crypto/x509/pkix" + "encoding/asn1" + "encoding/hex" + "encoding/pem" + "errors" +) + +var ( + oidDataContentType = asn1.ObjectIdentifier([]int{1, 2, 840, 113549, 1, 7, 1}) + oidEncryptedDataContentType = asn1.ObjectIdentifier([]int{1, 2, 840, 113549, 1, 7, 6}) + + oidFriendlyName = asn1.ObjectIdentifier([]int{1, 2, 840, 113549, 1, 9, 20}) + oidLocalKeyID = asn1.ObjectIdentifier([]int{1, 2, 840, 113549, 1, 9, 21}) + oidMicrosoftCSPName = asn1.ObjectIdentifier([]int{1, 3, 6, 1, 4, 1, 311, 17, 1}) + + errUnknownAttributeOID = errors.New("pkcs12: unknown attribute OID") +) + +type pfxPdu struct { + Version int + AuthSafe contentInfo + MacData macData `asn1:"optional"` +} + +type contentInfo struct { + ContentType asn1.ObjectIdentifier + Content asn1.RawValue `asn1:"tag:0,explicit,optional"` +} + +type encryptedData struct { + Version int + EncryptedContentInfo encryptedContentInfo +} + +type encryptedContentInfo struct { + ContentType asn1.ObjectIdentifier + ContentEncryptionAlgorithm pkix.AlgorithmIdentifier + EncryptedContent []byte `asn1:"tag:0,optional"` +} + +func (i encryptedContentInfo) Algorithm() pkix.AlgorithmIdentifier { + return i.ContentEncryptionAlgorithm +} + +func (i encryptedContentInfo) Data() []byte { return i.EncryptedContent } + +type safeBag struct { + Id asn1.ObjectIdentifier + Value asn1.RawValue `asn1:"tag:0,explicit"` + Attributes []pkcs12Attribute `asn1:"set,optional"` +} + +type pkcs12Attribute struct { + Id asn1.ObjectIdentifier + Value asn1.RawValue `asn1:"set"` +} + +type encryptedPrivateKeyInfo struct { + AlgorithmIdentifier pkix.AlgorithmIdentifier + EncryptedData []byte +} + +func (i encryptedPrivateKeyInfo) Algorithm() pkix.AlgorithmIdentifier { + return i.AlgorithmIdentifier +} + +func (i encryptedPrivateKeyInfo) Data() []byte { + return i.EncryptedData +} + +// PEM block types +const ( + certificateType = "CERTIFICATE" + privateKeyType = "PRIVATE KEY" +) + +// unmarshal calls asn1.Unmarshal, but also returns an error if there is any +// trailing data after unmarshaling. +func unmarshal(in []byte, out interface{}) error { + trailing, err := asn1.Unmarshal(in, out) + if err != nil { + return err + } + if len(trailing) != 0 { + return errors.New("pkcs12: trailing data found") + } + return nil +} + +// ToPEM converts all "safe bags" contained in pfxData to PEM blocks. +// Unknown attributes are discarded. +// +// Note that although the returned PEM blocks for private keys have type +// "PRIVATE KEY", the bytes are not encoded according to PKCS #8, but according +// to PKCS #1 for RSA keys and SEC 1 for ECDSA keys. +func ToPEM(pfxData []byte, password string) ([]*pem.Block, error) { + encodedPassword, err := bmpString(password) + if err != nil { + return nil, ErrIncorrectPassword + } + + bags, encodedPassword, err := getSafeContents(pfxData, encodedPassword) + + if err != nil { + return nil, err + } + + blocks := make([]*pem.Block, 0, len(bags)) + for _, bag := range bags { + block, err := convertBag(&bag, encodedPassword) + if err != nil { + return nil, err + } + blocks = append(blocks, block) + } + + return blocks, nil +} + +func convertBag(bag *safeBag, password []byte) (*pem.Block, error) { + block := &pem.Block{ + Headers: make(map[string]string), + } + + for _, attribute := range bag.Attributes { + k, v, err := convertAttribute(&attribute) + if err == errUnknownAttributeOID { + continue + } + if err != nil { + return nil, err + } + block.Headers[k] = v + } + + switch { + case bag.Id.Equal(oidCertBag): + block.Type = certificateType + certsData, err := decodeCertBag(bag.Value.Bytes) + if err != nil { + return nil, err + } + block.Bytes = certsData + case bag.Id.Equal(oidPKCS8ShroundedKeyBag): + block.Type = privateKeyType + + key, err := decodePkcs8ShroudedKeyBag(bag.Value.Bytes, password) + if err != nil { + return nil, err + } + + switch key := key.(type) { + case *rsa.PrivateKey: + block.Bytes = x509.MarshalPKCS1PrivateKey(key) + case *ecdsa.PrivateKey: + block.Bytes, err = x509.MarshalECPrivateKey(key) + if err != nil { + return nil, err + } + default: + return nil, errors.New("found unknown private key type in PKCS#8 wrapping") + } + default: + return nil, errors.New("don't know how to convert a safe bag of type " + bag.Id.String()) + } + return block, nil +} + +func convertAttribute(attribute *pkcs12Attribute) (key, value string, err error) { + isString := false + + switch { + case attribute.Id.Equal(oidFriendlyName): + key = "friendlyName" + isString = true + case attribute.Id.Equal(oidLocalKeyID): + key = "localKeyId" + case attribute.Id.Equal(oidMicrosoftCSPName): + // This key is chosen to match OpenSSL. + key = "Microsoft CSP Name" + isString = true + default: + return "", "", errUnknownAttributeOID + } + + if isString { + if err := unmarshal(attribute.Value.Bytes, &attribute.Value); err != nil { + return "", "", err + } + if value, err = decodeBMPString(attribute.Value.Bytes); err != nil { + return "", "", err + } + } else { + var id []byte + if err := unmarshal(attribute.Value.Bytes, &id); err != nil { + return "", "", err + } + value = hex.EncodeToString(id) + } + + return key, value, nil +} + +// Decode extracts a certificate and private key from pfxData. This function +// assumes that there is only one certificate and only one private key in the +// pfxData; if there are more use ToPEM instead. +func Decode(pfxData []byte, password string) (privateKey interface{}, certificate *x509.Certificate, err error) { + encodedPassword, err := bmpString(password) + if err != nil { + return nil, nil, err + } + + bags, encodedPassword, err := getSafeContents(pfxData, encodedPassword) + if err != nil { + return nil, nil, err + } + + if len(bags) != 2 { + err = errors.New("pkcs12: expected exactly two safe bags in the PFX PDU") + return + } + + for _, bag := range bags { + switch { + case bag.Id.Equal(oidCertBag): + if certificate != nil { + err = errors.New("pkcs12: expected exactly one certificate bag") + } + + certsData, err := decodeCertBag(bag.Value.Bytes) + if err != nil { + return nil, nil, err + } + certs, err := x509.ParseCertificates(certsData) + if err != nil { + return nil, nil, err + } + if len(certs) != 1 { + err = errors.New("pkcs12: expected exactly one certificate in the certBag") + return nil, nil, err + } + certificate = certs[0] + + case bag.Id.Equal(oidPKCS8ShroundedKeyBag): + if privateKey != nil { + err = errors.New("pkcs12: expected exactly one key bag") + return nil, nil, err + } + + if privateKey, err = decodePkcs8ShroudedKeyBag(bag.Value.Bytes, encodedPassword); err != nil { + return nil, nil, err + } + } + } + + if certificate == nil { + return nil, nil, errors.New("pkcs12: certificate missing") + } + if privateKey == nil { + return nil, nil, errors.New("pkcs12: private key missing") + } + + return +} + +func getSafeContents(p12Data, password []byte) (bags []safeBag, updatedPassword []byte, err error) { + pfx := new(pfxPdu) + if err := unmarshal(p12Data, pfx); err != nil { + return nil, nil, errors.New("pkcs12: error reading P12 data: " + err.Error()) + } + + if pfx.Version != 3 { + return nil, nil, NotImplementedError("can only decode v3 PFX PDU's") + } + + if !pfx.AuthSafe.ContentType.Equal(oidDataContentType) { + return nil, nil, NotImplementedError("only password-protected PFX is implemented") + } + + // unmarshal the explicit bytes in the content for type 'data' + if err := unmarshal(pfx.AuthSafe.Content.Bytes, &pfx.AuthSafe.Content); err != nil { + return nil, nil, err + } + + if len(pfx.MacData.Mac.Algorithm.Algorithm) == 0 { + return nil, nil, errors.New("pkcs12: no MAC in data") + } + + if err := verifyMac(&pfx.MacData, pfx.AuthSafe.Content.Bytes, password); err != nil { + if err == ErrIncorrectPassword && len(password) == 2 && password[0] == 0 && password[1] == 0 { + // some implementations use an empty byte array + // for the empty string password try one more + // time with empty-empty password + password = nil + err = verifyMac(&pfx.MacData, pfx.AuthSafe.Content.Bytes, password) + } + if err != nil { + return nil, nil, err + } + } + + var authenticatedSafe []contentInfo + if err := unmarshal(pfx.AuthSafe.Content.Bytes, &authenticatedSafe); err != nil { + return nil, nil, err + } + + if len(authenticatedSafe) != 2 { + return nil, nil, NotImplementedError("expected exactly two items in the authenticated safe") + } + + for _, ci := range authenticatedSafe { + var data []byte + + switch { + case ci.ContentType.Equal(oidDataContentType): + if err := unmarshal(ci.Content.Bytes, &data); err != nil { + return nil, nil, err + } + case ci.ContentType.Equal(oidEncryptedDataContentType): + var encryptedData encryptedData + if err := unmarshal(ci.Content.Bytes, &encryptedData); err != nil { + return nil, nil, err + } + if encryptedData.Version != 0 { + return nil, nil, NotImplementedError("only version 0 of EncryptedData is supported") + } + if data, err = pbDecrypt(encryptedData.EncryptedContentInfo, password); err != nil { + return nil, nil, err + } + default: + return nil, nil, NotImplementedError("only data and encryptedData content types are supported in authenticated safe") + } + + var safeContents []safeBag + if err := unmarshal(data, &safeContents); err != nil { + return nil, nil, err + } + bags = append(bags, safeContents...) + } + + return bags, password, nil +} diff --git a/vendor/golang.org/x/crypto/pkcs12/safebags.go b/vendor/golang.org/x/crypto/pkcs12/safebags.go new file mode 100644 index 0000000000000..def1f7b98d7de --- /dev/null +++ b/vendor/golang.org/x/crypto/pkcs12/safebags.go @@ -0,0 +1,57 @@ +// Copyright 2015 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package pkcs12 + +import ( + "crypto/x509" + "encoding/asn1" + "errors" +) + +var ( + // see https://tools.ietf.org/html/rfc7292#appendix-D + oidCertTypeX509Certificate = asn1.ObjectIdentifier([]int{1, 2, 840, 113549, 1, 9, 22, 1}) + oidPKCS8ShroundedKeyBag = asn1.ObjectIdentifier([]int{1, 2, 840, 113549, 1, 12, 10, 1, 2}) + oidCertBag = asn1.ObjectIdentifier([]int{1, 2, 840, 113549, 1, 12, 10, 1, 3}) +) + +type certBag struct { + Id asn1.ObjectIdentifier + Data []byte `asn1:"tag:0,explicit"` +} + +func decodePkcs8ShroudedKeyBag(asn1Data, password []byte) (privateKey interface{}, err error) { + pkinfo := new(encryptedPrivateKeyInfo) + if err = unmarshal(asn1Data, pkinfo); err != nil { + return nil, errors.New("pkcs12: error decoding PKCS#8 shrouded key bag: " + err.Error()) + } + + pkData, err := pbDecrypt(pkinfo, password) + if err != nil { + return nil, errors.New("pkcs12: error decrypting PKCS#8 shrouded key bag: " + err.Error()) + } + + ret := new(asn1.RawValue) + if err = unmarshal(pkData, ret); err != nil { + return nil, errors.New("pkcs12: error unmarshaling decrypted private key: " + err.Error()) + } + + if privateKey, err = x509.ParsePKCS8PrivateKey(pkData); err != nil { + return nil, errors.New("pkcs12: error parsing PKCS#8 private key: " + err.Error()) + } + + return privateKey, nil +} + +func decodeCertBag(asn1Data []byte) (x509Certificates []byte, err error) { + bag := new(certBag) + if err := unmarshal(asn1Data, bag); err != nil { + return nil, errors.New("pkcs12: error decoding cert bag: " + err.Error()) + } + if !bag.Id.Equal(oidCertTypeX509Certificate) { + return nil, NotImplementedError("only X509 certificates are supported") + } + return bag.Data, nil +} diff --git a/vendor/modules.txt b/vendor/modules.txt index c525a3e987279..99ad7c80a115c 100644 --- a/vendor/modules.txt +++ b/vendor/modules.txt @@ -205,6 +205,13 @@ github.com/cespare/xxhash/v2 # github.com/chi-middleware/proxy v1.1.1 ## explicit github.com/chi-middleware/proxy +# github.com/cloudflare/cfssl v0.0.0-20190726000631-633726f6bcb7 +github.com/cloudflare/cfssl/crypto/pkcs7 +github.com/cloudflare/cfssl/errors +github.com/cloudflare/cfssl/helpers +github.com/cloudflare/cfssl/helpers/derhelpers +github.com/cloudflare/cfssl/log +github.com/cloudflare/cfssl/revoke # github.com/couchbase/go-couchbase v0.0.0-20210224140812-5740cd35f448 ## explicit github.com/couchbase/go-couchbase @@ -246,6 +253,13 @@ github.com/dsnet/compress/bzip2/internal/sais github.com/dsnet/compress/internal github.com/dsnet/compress/internal/errors github.com/dsnet/compress/internal/prefix +# github.com/duo-labs/webauthn v0.0.0-20211221191814-a22482edaa3b => github.com/authelia/webauthn v0.0.0-20211225121951-80d1f2a572e4 +## explicit +github.com/duo-labs/webauthn/metadata +github.com/duo-labs/webauthn/protocol +github.com/duo-labs/webauthn/protocol/googletpm +github.com/duo-labs/webauthn/protocol/webauthncose +github.com/duo-labs/webauthn/webauthn # github.com/dustin/go-humanize v1.0.0 ## explicit github.com/dustin/go-humanize @@ -267,6 +281,8 @@ github.com/ethantkoenig/rupture github.com/felixge/httpsnoop # github.com/fsnotify/fsnotify v1.4.9 github.com/fsnotify/fsnotify +# github.com/fxamacker/cbor/v2 v2.2.0 +github.com/fxamacker/cbor/v2 # github.com/gliderlabs/ssh v0.3.3 ## explicit github.com/gliderlabs/ssh @@ -439,9 +455,9 @@ github.com/gogs/cron # github.com/gogs/go-gogs-client v0.0.0-20210131175652-1d7215cd8d85 ## explicit github.com/gogs/go-gogs-client -# github.com/golang-jwt/jwt v3.2.2+incompatible +# github.com/golang-jwt/jwt/v4 v4.2.0 ## explicit -github.com/golang-jwt/jwt +github.com/golang-jwt/jwt/v4 # github.com/golang-sql/civil v0.0.0-20190719163853-cb61b32ac6fe github.com/golang-sql/civil # github.com/golang/protobuf v1.5.2 @@ -453,6 +469,12 @@ github.com/golang/protobuf/ptypes/timestamp # github.com/golang/snappy v0.0.4 ## explicit github.com/golang/snappy +# github.com/google/certificate-transparency-go v1.0.21 +github.com/google/certificate-transparency-go +github.com/google/certificate-transparency-go/asn1 +github.com/google/certificate-transparency-go/tls +github.com/google/certificate-transparency-go/x509 +github.com/google/certificate-transparency-go/x509/pkix # github.com/google/go-github/v39 v39.2.0 ## explicit github.com/google/go-github/v39/github @@ -575,7 +597,7 @@ github.com/mailru/easyjson/jlexer github.com/mailru/easyjson/jwriter # github.com/markbates/going v1.0.0 github.com/markbates/going/defaults -# github.com/markbates/goth v1.68.0 +# github.com/markbates/goth v1.68.0 => github.com/zeripath/goth v1.68.1-0.20220109111530-754359885dce ## explicit github.com/markbates/goth github.com/markbates/goth/gothic @@ -721,6 +743,8 @@ github.com/rs/xid # github.com/russross/blackfriday/v2 v2.1.0 ## explicit github.com/russross/blackfriday/v2 +# github.com/satori/go.uuid v1.2.0 +github.com/satori/go.uuid # github.com/sergi/go-diff v1.2.0 ## explicit github.com/sergi/go-diff/diffmatchpatch @@ -794,6 +818,8 @@ github.com/unrolled/render # github.com/urfave/cli v1.22.5 ## explicit github.com/urfave/cli +# github.com/x448/float16 v0.8.4 +github.com/x448/float16 # github.com/xanzy/go-gitlab v0.50.1 ## explicit github.com/xanzy/go-gitlab @@ -860,6 +886,8 @@ golang.org/x/crypto/blake2b golang.org/x/crypto/blowfish golang.org/x/crypto/cast5 golang.org/x/crypto/chacha20 +golang.org/x/crypto/cryptobyte +golang.org/x/crypto/cryptobyte/asn1 golang.org/x/crypto/curve25519 golang.org/x/crypto/curve25519/internal/field golang.org/x/crypto/ed25519 @@ -875,6 +903,8 @@ golang.org/x/crypto/openpgp/errors golang.org/x/crypto/openpgp/packet golang.org/x/crypto/openpgp/s2k golang.org/x/crypto/pbkdf2 +golang.org/x/crypto/pkcs12 +golang.org/x/crypto/pkcs12/internal/rc2 golang.org/x/crypto/scrypt golang.org/x/crypto/ssh golang.org/x/crypto/ssh/agent @@ -1060,5 +1090,5 @@ xorm.io/xorm/names xorm.io/xorm/schemas xorm.io/xorm/tags # github.com/hashicorp/go-version => github.com/6543/go-version v1.3.1 -# github.com/golang-jwt/jwt v3.2.1+incompatible => github.com/golang-jwt/jwt v3.2.2+incompatible # github.com/shurcooL/vfsgen => github.com/lunny/vfsgen v0.0.0-20220105142115-2c99e1ffdfa0 +# github.com/duo-labs/webauthn => github.com/authelia/webauthn v0.0.0-20211225121951-80d1f2a572e4 diff --git a/web_src/js/features/user-auth-u2f.js b/web_src/js/features/user-auth-u2f.js deleted file mode 100644 index 30876a1d03f0c..0000000000000 --- a/web_src/js/features/user-auth-u2f.js +++ /dev/null @@ -1,125 +0,0 @@ -const {appSubUrl, csrfToken} = window.config; - -export function initUserAuthU2fAuth() { - if ($('#wait-for-key').length === 0) { - return; - } - u2fApi.ensureSupport().then(() => { - $.getJSON(`${appSubUrl}/user/u2f/challenge`).done((req) => { - u2fApi.sign(req.appId, req.challenge, req.registeredKeys, 30) - .then(u2fSigned) - .catch((err) => { - if (err === undefined) { - u2fError(1); - return; - } - u2fError(err.metaData.code); - }); - }); - }).catch(() => { - // Fallback in case browser do not support U2F - window.location.href = `${appSubUrl}/user/two_factor`; - }); -} - -function u2fSigned(resp) { - $.ajax({ - url: `${appSubUrl}/user/u2f/sign`, - type: 'POST', - headers: {'X-Csrf-Token': csrfToken}, - data: JSON.stringify(resp), - contentType: 'application/json; charset=utf-8', - }).done((res) => { - window.location.replace(res); - }).fail(() => { - u2fError(1); - }); -} - -function u2fRegistered(resp) { - if (checkError(resp)) { - return; - } - $.ajax({ - url: `${appSubUrl}/user/settings/security/u2f/register`, - type: 'POST', - headers: {'X-Csrf-Token': csrfToken}, - data: JSON.stringify(resp), - contentType: 'application/json; charset=utf-8', - success() { - window.location.reload(); - }, - fail() { - u2fError(1); - } - }); -} - -function checkError(resp) { - if (!('errorCode' in resp)) { - return false; - } - if (resp.errorCode === 0) { - return false; - } - u2fError(resp.errorCode); - return true; -} - -function u2fError(errorType) { - const u2fErrors = { - browser: $('#unsupported-browser'), - 1: $('#u2f-error-1'), - 2: $('#u2f-error-2'), - 3: $('#u2f-error-3'), - 4: $('#u2f-error-4'), - 5: $('.u2f_error_5') - }; - u2fErrors[errorType].removeClass('hide'); - - for (const type of Object.keys(u2fErrors)) { - if (type !== `${errorType}`) { - u2fErrors[type].addClass('hide'); - } - } - $('#u2f-error').modal('show'); -} - -export function initUserAuthU2fRegister() { - $('#register-device').modal({allowMultiple: false}); - $('#u2f-error').modal({allowMultiple: false}); - $('#register-security-key').on('click', (e) => { - e.preventDefault(); - u2fApi.ensureSupport() - .then(u2fRegisterRequest) - .catch(() => { - u2fError('browser'); - }); - }); -} - -function u2fRegisterRequest() { - $.post(`${appSubUrl}/user/settings/security/u2f/request_register`, { - _csrf: csrfToken, - name: $('#nickname').val() - }).done((req) => { - $('#nickname').closest('div.field').removeClass('error'); - $('#register-device').modal('show'); - if (req.registeredKeys === null) { - req.registeredKeys = []; - } - u2fApi.register(req.appId, req.registerRequests, req.registeredKeys, 30) - .then(u2fRegistered) - .catch((reason) => { - if (reason === undefined) { - u2fError(1); - return; - } - u2fError(reason.metaData.code); - }); - }).fail((xhr) => { - if (xhr.status === 409) { - $('#nickname').closest('div.field').addClass('error'); - } - }); -} diff --git a/web_src/js/features/user-auth-webauthn.js b/web_src/js/features/user-auth-webauthn.js new file mode 100644 index 0000000000000..5b580e7949d49 --- /dev/null +++ b/web_src/js/features/user-auth-webauthn.js @@ -0,0 +1,197 @@ +import {encode, decode} from 'uint8-to-base64'; + +const {appSubUrl, csrfToken} = window.config; + + +export function initUserAuthWebAuthn() { + if ($('.user.signin.webauthn-prompt').length === 0) { + return; + } + + if (!detectWebAuthnSupport()) { + return; + } + + $.getJSON(`${appSubUrl}/user/webauthn/assertion`, {}) + .done((makeAssertionOptions) => { + makeAssertionOptions.publicKey.challenge = decode(makeAssertionOptions.publicKey.challenge); + for (let i = 0; i < makeAssertionOptions.publicKey.allowCredentials.length; i++) { + makeAssertionOptions.publicKey.allowCredentials[i].id = decode(makeAssertionOptions.publicKey.allowCredentials[i].id); + } + navigator.credentials.get({ + publicKey: makeAssertionOptions.publicKey + }) + .then((credential) => { + verifyAssertion(credential); + }).catch((err) => { + webAuthnError(0, err.message); + }); + }).fail(() => { + webAuthnError('unknown'); + }); +} + +function verifyAssertion(assertedCredential) { + // Move data into Arrays incase it is super long + const authData = new Uint8Array(assertedCredential.response.authenticatorData); + const clientDataJSON = new Uint8Array(assertedCredential.response.clientDataJSON); + const rawId = new Uint8Array(assertedCredential.rawId); + const sig = new Uint8Array(assertedCredential.response.signature); + const userHandle = new Uint8Array(assertedCredential.response.userHandle); + $.ajax({ + url: `${appSubUrl}/user/webauthn/assertion`, + type: 'POST', + data: JSON.stringify({ + id: assertedCredential.id, + rawId: bufferEncode(rawId), + type: assertedCredential.type, + clientExtensionResults: assertedCredential.getClientExtensionResults(), + response: { + authenticatorData: bufferEncode(authData), + clientDataJSON: bufferEncode(clientDataJSON), + signature: bufferEncode(sig), + userHandle: bufferEncode(userHandle), + }, + }), + contentType: 'application/json; charset=utf-8', + dataType: 'json', + success: (resp) => { + if (resp && resp['redirect']) { + window.location.href = resp['redirect']; + } else { + window.location.href = '/'; + } + }, + error: (xhr) => { + if (xhr.status === 500) { + webAuthnError('unknown'); + return; + } + webAuthnError('unable-to-process'); + } + }); +} + +// Encode an ArrayBuffer into a base64 string. +function bufferEncode(value) { + return encode(value) + .replace(/\+/g, '-') + .replace(/\//g, '_') + .replace(/=/g, ''); +} + +function webauthnRegistered(newCredential) { + const attestationObject = new Uint8Array(newCredential.response.attestationObject); + const clientDataJSON = new Uint8Array(newCredential.response.clientDataJSON); + const rawId = new Uint8Array(newCredential.rawId); + + return $.ajax({ + url: `${appSubUrl}/user/settings/security/webauthn/register`, + type: 'POST', + headers: {'X-Csrf-Token': csrfToken}, + data: JSON.stringify({ + id: newCredential.id, + rawId: bufferEncode(rawId), + type: newCredential.type, + response: { + attestationObject: bufferEncode(attestationObject), + clientDataJSON: bufferEncode(clientDataJSON), + }, + }), + dataType: 'json', + contentType: 'application/json; charset=utf-8', + }).then(() => { + window.location.reload(); + }).fail((xhr) => { + if (xhr.status === 409) { + webAuthnError('duplicated'); + return; + } + webAuthnError('unknown'); + }); +} + +function webAuthnError(errorType, message) { + $('#webauthn-error [data-webauthn-error-msg]').hide(); + if (errorType === 0 && message && message.length > 1) { + $(`#webauthn-error [data-webauthn-error-msg=0]`).text(message); + $(`#webauthn-error [data-webauthn-error-msg=0]`).show(); + } else { + $(`#webauthn-error [data-webauthn-error-msg=${errorType}]`).show(); + } + $('#webauthn-error').modal('show'); +} + +function detectWebAuthnSupport() { + if (!window.isSecureContext) { + $('#register-button').prop('disabled', true); + $('#login-button').prop('disabled', true); + webAuthnError('insecure'); + return false; + } + + if (typeof window.PublicKeyCredential !== 'function') { + $('#register-button').prop('disabled', true); + $('#login-button').prop('disabled', true); + webAuthnError('browser'); + return false; + } + + return true; +} + +export function initUserAuthWebAuthnRegister() { + if ($('#register-webauthn').length === 0) { + return; + } + + if (!detectWebAuthnSupport()) { + return; + } + + $('#register-device').modal({allowMultiple: false}); + $('#webauthn-error').modal({allowMultiple: false}); + $('#register-webauthn').on('click', (e) => { + e.preventDefault(); + webAuthnRegisterRequest(); + }); +} + +function webAuthnRegisterRequest() { + if ($('#nickname').val() === '') { + webAuthnError('empty'); + return; + } + $.post(`${appSubUrl}/user/settings/security/webauthn/request_register`, { + _csrf: csrfToken, + name: $('#nickname').val(), + }).done((makeCredentialOptions) => { + $('#nickname').closest('div.field').removeClass('error'); + $('#register-device').modal('show'); + + makeCredentialOptions.publicKey.challenge = decode(makeCredentialOptions.publicKey.challenge); + makeCredentialOptions.publicKey.user.id = decode(makeCredentialOptions.publicKey.user.id); + if (makeCredentialOptions.publicKey.excludeCredentials) { + for (let i = 0; i < makeCredentialOptions.publicKey.excludeCredentials.length; i++) { + makeCredentialOptions.publicKey.excludeCredentials[i].id = decode(makeCredentialOptions.publicKey.excludeCredentials[i].id); + } + } + + navigator.credentials.create({ + publicKey: makeCredentialOptions.publicKey + }).then(webauthnRegistered) + .catch((err) => { + if (!err) { + webAuthnError('unknown'); + return; + } + webAuthnError(0, err); + }); + }).fail((xhr) => { + if (xhr.status === 409) { + webAuthnError('duplicated'); + return; + } + webAuthnError('unknown'); + }); +} diff --git a/web_src/js/index.js b/web_src/js/index.js index c9bf197a35518..8ea30f1fcac47 100644 --- a/web_src/js/index.js +++ b/web_src/js/index.js @@ -63,7 +63,7 @@ import { initRepoSettingSearchTeamBox, } from './features/repo-settings.js'; import {initOrgTeamSearchRepoBox, initOrgTeamSettings} from './features/org-team.js'; -import {initUserAuthU2fAuth, initUserAuthU2fRegister} from './features/user-auth-u2f.js'; +import {initUserAuthWebAuthn, initUserAuthWebAuthnRegister} from './features/user-auth-webauthn.js'; import {initRepoRelease, initRepoReleaseEditor} from './features/repo-release.js'; import {initRepoEditor} from './features/repo-editor.js'; import {initCompSearchUserBox} from './features/comp/SearchUserBox.js'; @@ -163,7 +163,7 @@ $(document).ready(() => { initUserAuthLinkAccountView(); initUserAuthOauth2(); - initUserAuthU2fAuth(); - initUserAuthU2fRegister(); + initUserAuthWebAuthn(); + initUserAuthWebAuthnRegister(); initUserSettings(); }); diff --git a/web_src/less/_form.less b/web_src/less/_form.less index 1a92b8e369d35..99aec18f482af 100644 --- a/web_src/less/_form.less +++ b/web_src/less/_form.less @@ -276,6 +276,10 @@ textarea:focus, } } +.user.signin.webauthn-prompt { + margin-top: 15px; +} + .repository { &.new.repo, &.new.migrate, diff --git a/webpack.config.js b/webpack.config.js index 5736615e604d3..86517f54cbe88 100644 --- a/webpack.config.js +++ b/webpack.config.js @@ -213,6 +213,7 @@ export default { override: { 'jquery.are-you-sure@*': {licenseName: 'MIT'}, }, + allow: '(Apache-2.0 OR BSD-2-Clause OR BSD-3-Clause OR MIT OR ISC)', ignore: [ 'font-awesome', ],