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tiup/mirror: add ability to change owner of a component (#1676)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,100 @@ | ||
| // Copyright 2021 PingCAP, Inc. | ||
| // | ||
| // 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, | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package rotate | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "net/http" | ||
|
|
||
| cjson "github.com/gibson042/canonicaljson-go" | ||
| "github.com/gorilla/mux" | ||
| "github.com/pingcap/errors" | ||
| "github.com/pingcap/fn" | ||
| logprinter "github.com/pingcap/tiup/pkg/logger/printer" | ||
| "github.com/pingcap/tiup/pkg/repository/v1manifest" | ||
| "github.com/pingcap/tiup/pkg/utils" | ||
| ) | ||
|
|
||
| // ServeComponent starts a temp server for receiving component signatures from owner | ||
| func ServeComponent(addr string, owner *v1manifest.Owner, comp *v1manifest.Component) (*v1manifest.Manifest, error) { | ||
| r := mux.NewRouter() | ||
| uri := fmt.Sprintf("/rotate/%s", utils.Base62Tag()) | ||
|
|
||
| r.Handle(uri, fn.Wrap(func() (*v1manifest.Manifest, error) { | ||
| return &v1manifest.Manifest{Signed: comp}, nil | ||
| })).Methods("GET") | ||
|
|
||
| sigCh := make(chan v1manifest.Signature) | ||
| r.Handle(uri, fn.Wrap(func(m *v1manifest.RawManifest) (*v1manifest.Manifest /* always nil */, error) { | ||
| for _, sig := range m.Signatures { | ||
| if err := verifyComponentSig(sig, owner, comp); err != nil { | ||
| return nil, err | ||
| } | ||
| sigCh <- sig | ||
| } | ||
| return nil, nil | ||
| })).Methods("POST") | ||
|
|
||
| srv := &http.Server{Addr: addr, Handler: r} | ||
| go func() { | ||
| if err := srv.ListenAndServe(); err != nil { | ||
| logprinter.Errorf("server closed: %s", err.Error()) | ||
| } | ||
| close(sigCh) | ||
| }() | ||
|
|
||
| manifest := &v1manifest.Manifest{Signed: comp} | ||
| status := newStatusRender(owner.Keys, addr, uri) | ||
| defer status.stop() | ||
|
|
||
| SIGLOOP: | ||
| for sig := range sigCh { | ||
| for _, s := range manifest.Signatures { | ||
| if s.KeyID == sig.KeyID { | ||
| // Duplicate signature | ||
| continue SIGLOOP | ||
| } | ||
| } | ||
| manifest.Signatures = append(manifest.Signatures, sig) | ||
| status.render(manifest) | ||
| if len(manifest.Signatures) == len(owner.Keys) { | ||
| _ = srv.Shutdown(context.Background()) | ||
| break | ||
| } | ||
| } | ||
|
|
||
| if len(manifest.Signatures) != len(owner.Keys) { | ||
| return nil, errors.New("no enough signature collected before server shutdown") | ||
| } | ||
| return manifest, nil | ||
| } | ||
|
|
||
| func verifyComponentSig(sig v1manifest.Signature, owner *v1manifest.Owner, comp *v1manifest.Component) error { | ||
| payload, err := cjson.Marshal(comp) | ||
| if err != nil { | ||
| return fn.ErrorWithStatusCode(errors.Annotate(err, "marshal component manifest"), http.StatusInternalServerError) | ||
| } | ||
|
|
||
| k := owner.Keys[sig.KeyID] | ||
| if k == nil { | ||
| // Received a signature signed by an invalid key | ||
| return fn.ErrorWithStatusCode(errors.New("the key is not valid"), http.StatusNotAcceptable) | ||
| } | ||
| if err := k.Verify(payload, sig.Sig); err != nil { | ||
| // Received an invalid signature | ||
| return fn.ErrorWithStatusCode(errors.New("the signature is not valid"), http.StatusNotAcceptable) | ||
| } | ||
| return nil | ||
| } |
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