Add DNS provider for SelfHost.(de|eu)

README.md

@@ -80,13 +80,14 @@ Detailed documentation is available [here](https://go-acme.github.io/lego/dns).
 | [Open Telekom Cloud](https://go-acme.github.io/lego/dns/otc/)                   | [Oracle Cloud](https://go-acme.github.io/lego/dns/oraclecloud/)                 | [OVH](https://go-acme.github.io/lego/dns/ovh/)                                  | [plesk.com](https://go-acme.github.io/lego/dns/plesk/)                          |
 | [Porkbun](https://go-acme.github.io/lego/dns/porkbun/)                          | [PowerDNS](https://go-acme.github.io/lego/dns/pdns/)                            | [Rackspace](https://go-acme.github.io/lego/dns/rackspace/)                      | [RcodeZero](https://go-acme.github.io/lego/dns/rcodezero/)                      |
 | [reg.ru](https://go-acme.github.io/lego/dns/regru/)                             | [RFC2136](https://go-acme.github.io/lego/dns/rfc2136/)                          | [RimuHosting](https://go-acme.github.io/lego/dns/rimuhosting/)                  | [Sakura Cloud](https://go-acme.github.io/lego/dns/sakuracloud/)                 |
-| [Scaleway](https://go-acme.github.io/lego/dns/scaleway/)                        | [Selectel v2](https://go-acme.github.io/lego/dns/selectelv2/)                   | [Selectel](https://go-acme.github.io/lego/dns/selectel/)                        | [Servercow](https://go-acme.github.io/lego/dns/servercow/)                      |
-| [Shellrent](https://go-acme.github.io/lego/dns/shellrent/)                      | [Simply.com](https://go-acme.github.io/lego/dns/simply/)                        | [Sonic](https://go-acme.github.io/lego/dns/sonic/)                              | [Stackpath](https://go-acme.github.io/lego/dns/stackpath/)                      |
-| [Tencent Cloud DNS](https://go-acme.github.io/lego/dns/tencentcloud/)           | [TransIP](https://go-acme.github.io/lego/dns/transip/)                          | [UKFast SafeDNS](https://go-acme.github.io/lego/dns/safedns/)                   | [Ultradns](https://go-acme.github.io/lego/dns/ultradns/)                        |
-| [Variomedia](https://go-acme.github.io/lego/dns/variomedia/)                    | [VegaDNS](https://go-acme.github.io/lego/dns/vegadns/)                          | [Vercel](https://go-acme.github.io/lego/dns/vercel/)                            | [Versio.[nl/eu/uk]](https://go-acme.github.io/lego/dns/versio/)                 |
-| [VinylDNS](https://go-acme.github.io/lego/dns/vinyldns/)                        | [VK Cloud](https://go-acme.github.io/lego/dns/vkcloud/)                         | [Vscale](https://go-acme.github.io/lego/dns/vscale/)                            | [Vultr](https://go-acme.github.io/lego/dns/vultr/)                              |
-| [Webnames](https://go-acme.github.io/lego/dns/webnames/)                        | [Websupport](https://go-acme.github.io/lego/dns/websupport/)                    | [WEDOS](https://go-acme.github.io/lego/dns/wedos/)                              | [Yandex 360](https://go-acme.github.io/lego/dns/yandex360/)                     |
-| [Yandex Cloud](https://go-acme.github.io/lego/dns/yandexcloud/)                 | [Yandex PDD](https://go-acme.github.io/lego/dns/yandex/)                        | [Zone.ee](https://go-acme.github.io/lego/dns/zoneee/)                           | [Zonomi](https://go-acme.github.io/lego/dns/zonomi/)                            |
+| [Scaleway](https://go-acme.github.io/lego/dns/scaleway/)                        | [Selectel v2](https://go-acme.github.io/lego/dns/selectelv2/)                   | [Selectel](https://go-acme.github.io/lego/dns/selectel/)                        | [SelfHost.(de/eu)](https://go-acme.github.io/lego/dns/selfhostde/)              |
+| [Servercow](https://go-acme.github.io/lego/dns/servercow/)                      | [Shellrent](https://go-acme.github.io/lego/dns/shellrent/)                      | [Simply.com](https://go-acme.github.io/lego/dns/simply/)                        | [Sonic](https://go-acme.github.io/lego/dns/sonic/)                              |
+| [Stackpath](https://go-acme.github.io/lego/dns/stackpath/)                      | [Tencent Cloud DNS](https://go-acme.github.io/lego/dns/tencentcloud/)           | [TransIP](https://go-acme.github.io/lego/dns/transip/)                          | [UKFast SafeDNS](https://go-acme.github.io/lego/dns/safedns/)                   |
+| [Ultradns](https://go-acme.github.io/lego/dns/ultradns/)                        | [Variomedia](https://go-acme.github.io/lego/dns/variomedia/)                    | [VegaDNS](https://go-acme.github.io/lego/dns/vegadns/)                          | [Vercel](https://go-acme.github.io/lego/dns/vercel/)                            |
+| [Versio.[nl/eu/uk]](https://go-acme.github.io/lego/dns/versio/)                 | [VinylDNS](https://go-acme.github.io/lego/dns/vinyldns/)                        | [VK Cloud](https://go-acme.github.io/lego/dns/vkcloud/)                         | [Vscale](https://go-acme.github.io/lego/dns/vscale/)                            |
+| [Vultr](https://go-acme.github.io/lego/dns/vultr/)                              | [Webnames](https://go-acme.github.io/lego/dns/webnames/)                        | [Websupport](https://go-acme.github.io/lego/dns/websupport/)                    | [WEDOS](https://go-acme.github.io/lego/dns/wedos/)                              |
+| [Yandex 360](https://go-acme.github.io/lego/dns/yandex360/)                     | [Yandex Cloud](https://go-acme.github.io/lego/dns/yandexcloud/)                 | [Yandex PDD](https://go-acme.github.io/lego/dns/yandex/)                        | [Zone.ee](https://go-acme.github.io/lego/dns/zoneee/)                           |
+| [Zonomi](https://go-acme.github.io/lego/dns/zonomi/)                            |                                                                                 |                                                                                 |                                                                                 |
 
 <!-- END DNS PROVIDERS LIST -->
 

cmd/zz_gen_cmd_dnshelp.go

@@ -125,6 +125,7 @@ func allDNSCodes() string {
 		"scaleway",
 		"selectel",
 		"selectelv2",
+		"selfhostde",
 		"servercow",
 		"shellrent",
 		"simply",
@@ -2553,6 +2554,28 @@ func displayDNSHelp(w io.Writer, name string) error {
 		ew.writeln()
 		ew.writeln(`More information: https://go-acme.github.io/lego/dns/selectelv2`)
 
+	case "selfhostde":
+		// generated from: providers/dns/selfhostde/selfhostde.toml
+		ew.writeln(`Configuration for SelfHost.(de|eu).`)
+		ew.writeln(`Code:	'selfhostde'`)
+		ew.writeln(`Since:	'v4.19.0'`)
+		ew.writeln()
+
+		ew.writeln(`Credentials:`)
+		ew.writeln(`	- "SELFHOSTDE_PASSWORD":	Password`)
+		ew.writeln(`	- "SELFHOSTDE_RECORDS_MAPPING":	Record IDs mapping with domains (ex: example.com:123:456,example.org:789,foo.example.com:147)`)
+		ew.writeln(`	- "SELFHOSTDE_USERNAME":	Username`)
+		ew.writeln()
+
+		ew.writeln(`Additional Configuration:`)
+		ew.writeln(`	- "SELFHOSTDE_HTTP_TIMEOUT":	API request timeout`)
+		ew.writeln(`	- "SELFHOSTDE_POLLING_INTERVAL":	Time between DNS propagation check`)
+		ew.writeln(`	- "SELFHOSTDE_PROPAGATION_TIMEOUT":	Maximum waiting time for DNS propagation`)
+		ew.writeln(`	- "SELFHOSTDE_TTL":	The TTL of the TXT record used for the DNS challenge`)
+
+		ew.writeln()
+		ew.writeln(`More information: https://go-acme.github.io/lego/dns/selfhostde`)
+
 	case "servercow":
 		// generated from: providers/dns/servercow/servercow.toml
 		ew.writeln(`Configuration for Servercow.`)

docs/content/dns/zz_gen_selfhostde.md

@@ -0,0 +1,96 @@
+---
+title: "SelfHost.(de|eu)"
+date: 2019-03-03T16:39:46+01:00
+draft: false
+slug: selfhostde
+dnsprovider:
+  since:    "v4.19.0"
+  code:     "selfhostde"
+  url:      "https://www.selfhost.de"
+---
+
+<!-- THIS DOCUMENTATION IS AUTO-GENERATED. PLEASE DO NOT EDIT. -->
+<!-- providers/dns/selfhostde/selfhostde.toml -->
+<!-- THIS DOCUMENTATION IS AUTO-GENERATED. PLEASE DO NOT EDIT. -->
+
+
+Configuration for [SelfHost.(de|eu)](https://www.selfhost.de).
+
+
+<!--more-->
+
+- Code: `selfhostde`
+- Since: v4.19.0
+
+
+Here is an example bash command using the SelfHost.(de|eu) provider:
+
+```bash
+SELFHOSTDE_USERNAME=xxx \
+SELFHOSTDE_PASSWORD=yyy \
+SELFHOSTDE_RECORDS_MAPPING=my.example.com:123 \
+lego --email you@example.com --dns selfhostde --domains my.example.org run
+```
+
+
+
+
+## Credentials
+
+| Environment Variable Name | Description |
+|-----------------------|-------------|
+| `SELFHOSTDE_PASSWORD` | Password |
+| `SELFHOSTDE_RECORDS_MAPPING` | Record IDs mapping with domains (ex: example.com:123:456,example.org:789,foo.example.com:147) |
+| `SELFHOSTDE_USERNAME` | Username |
+
+The environment variable names can be suffixed by `_FILE` to reference a file instead of a value.
+More information [here]({{% ref "dns#configuration-and-credentials" %}}).
+
+
+## Additional Configuration
+
+| Environment Variable Name | Description |
+|--------------------------------|-------------|
+| `SELFHOSTDE_HTTP_TIMEOUT` | API request timeout |
+| `SELFHOSTDE_POLLING_INTERVAL` | Time between DNS propagation check |
+| `SELFHOSTDE_PROPAGATION_TIMEOUT` | Maximum waiting time for DNS propagation |
+| `SELFHOSTDE_TTL` | The TTL of the TXT record used for the DNS challenge |
+
+The environment variable names can be suffixed by `_FILE` to reference a file instead of a value.
+More information [here]({{% ref "dns#configuration-and-credentials" %}}).
+
+SelfHost.de doesn't have an API to create or delete TXT records,
+there is only an "unofficial" and undocumented endpoint to update an existing TXT record.
+
+So, before using lego to request a certificate for a given domain or wildcard (such as `my.example.org` or `*.my.example.org`),
+you must create:
+
+- one TXT record named `_acme-challenge.my.example.org` if you are **not** using wildcard for this domain.
+- two TXT records named `_acme-challenge.my.example.org` if you are using wildcard for this domain.
+
+After that you must edit the TXT record(s) to get the ID(s).
+
+You then must prepare the `SELFHOSTDE_RECORDS_MAPPING` environment variable with the following format:
+
+```
+<domain_A>:<record_id_A1>:<record_id_A2>,<domain_B>:<record_id_B1>:<record_id_B2>,<domain_C>:<record_id_C1>:<record_id_C2>
+```
+
+where each group of domain + record ID(s) is separated with a comma (`,`),
+and the domain and record ID(s) are separated with a colon (`:`).
+
+For example, if you want to create or renew a certificate for `my.example.org`, `*.my.example.org`, and `other.example.org`,
+you would need:
+
+- two separate records for `_acme-challenge.my.example.org`
+- and another separate record for `_acme-challenge.other.example.org`
+
+The resulting environment variable would then be: `SELFHOSTDE_RECORDS_MAPPING=my.example.com:123:456,other.example.com:789`
+
+
+
+
+
+<!-- THIS DOCUMENTATION IS AUTO-GENERATED. PLEASE DO NOT EDIT. -->
+<!-- providers/dns/selfhostde/selfhostde.toml -->
+<!-- THIS DOCUMENTATION IS AUTO-GENERATED. PLEASE DO NOT EDIT. -->

docs/data/zz_cli_help.toml

@@ -139,7 +139,7 @@ To display the documentation for a specific DNS provider, run:
   $ lego dnshelp -c code
 
 Supported DNS providers:
-  acme-dns, alidns, allinkl, arvancloud, auroradns, autodns, azure, azuredns, bindman, bluecat, brandit, bunny, checkdomain, civo, clouddns, cloudflare, cloudns, cloudru, cloudxns, conoha, constellix, cpanel, derak, desec, designate, digitalocean, directadmin, dnshomede, dnsimple, dnsmadeeasy, dnspod, dode, domeneshop, dreamhost, duckdns, dyn, dynu, easydns, edgedns, efficientip, epik, exec, exoscale, freemyip, gandi, gandiv5, gcloud, gcore, glesys, godaddy, googledomains, hetzner, hostingde, hosttech, httpnet, httpreq, huaweicloud, hurricane, hyperone, ibmcloud, iij, iijdpf, infoblox, infomaniak, internetbs, inwx, ionos, ipv64, iwantmyname, joker, liara, lightsail, limacity, linode, liquidweb, loopia, luadns, mailinabox, manual, metaname, mijnhost, mittwald, mydnsjp, mythicbeasts, namecheap, namedotcom, namesilo, nearlyfreespeech, netcup, netlify, nicmanager, nifcloud, njalla, nodion, ns1, oraclecloud, otc, ovh, pdns, plesk, porkbun, rackspace, rcodezero, regru, rfc2136, rimuhosting, route53, safedns, sakuracloud, scaleway, selectel, selectelv2, servercow, shellrent, simply, sonic, stackpath, tencentcloud, transip, ultradns, variomedia, vegadns, vercel, versio, vinyldns, vkcloud, vscale, vultr, webnames, websupport, wedos, yandex, yandex360, yandexcloud, zoneee, zonomi
+  acme-dns, alidns, allinkl, arvancloud, auroradns, autodns, azure, azuredns, bindman, bluecat, brandit, bunny, checkdomain, civo, clouddns, cloudflare, cloudns, cloudru, cloudxns, conoha, constellix, cpanel, derak, desec, designate, digitalocean, directadmin, dnshomede, dnsimple, dnsmadeeasy, dnspod, dode, domeneshop, dreamhost, duckdns, dyn, dynu, easydns, edgedns, efficientip, epik, exec, exoscale, freemyip, gandi, gandiv5, gcloud, gcore, glesys, godaddy, googledomains, hetzner, hostingde, hosttech, httpnet, httpreq, huaweicloud, hurricane, hyperone, ibmcloud, iij, iijdpf, infoblox, infomaniak, internetbs, inwx, ionos, ipv64, iwantmyname, joker, liara, lightsail, limacity, linode, liquidweb, loopia, luadns, mailinabox, manual, metaname, mijnhost, mittwald, mydnsjp, mythicbeasts, namecheap, namedotcom, namesilo, nearlyfreespeech, netcup, netlify, nicmanager, nifcloud, njalla, nodion, ns1, oraclecloud, otc, ovh, pdns, plesk, porkbun, rackspace, rcodezero, regru, rfc2136, rimuhosting, route53, safedns, sakuracloud, scaleway, selectel, selectelv2, selfhostde, servercow, shellrent, simply, sonic, stackpath, tencentcloud, transip, ultradns, variomedia, vegadns, vercel, versio, vinyldns, vkcloud, vscale, vultr, webnames, websupport, wedos, yandex, yandex360, yandexcloud, zoneee, zonomi
 
 More information: https://go-acme.github.io/lego/dns
 """

providers/dns/dns_providers.go

@@ -116,6 +116,7 @@ import (
 	"github.com/go-acme/lego/v4/providers/dns/scaleway"
 	"github.com/go-acme/lego/v4/providers/dns/selectel"
 	"github.com/go-acme/lego/v4/providers/dns/selectelv2"
+	"github.com/go-acme/lego/v4/providers/dns/selfhostde"
 	"github.com/go-acme/lego/v4/providers/dns/servercow"
 	"github.com/go-acme/lego/v4/providers/dns/shellrent"
 	"github.com/go-acme/lego/v4/providers/dns/simply"
@@ -369,6 +370,8 @@ func NewDNSChallengeProviderByName(name string) (challenge.Provider, error) {
 		return selectel.NewDNSProvider()
 	case "selectelv2":
 		return selectelv2.NewDNSProvider()
+	case "selfhostde":
+		return selfhostde.NewDNSProvider()
 	case "servercow":
 		return servercow.NewDNSProvider()
 	case "shellrent":

providers/dns/selfhostde/internal/client.go

@@ -0,0 +1,66 @@
+package internal
+
+import (
+	"context"
+	"fmt"
+	"net/http"
+	"net/url"
+	"time"
+
+	"github.com/go-acme/lego/v4/providers/dns/internal/errutils"
+)
+
+const defaultBaseURL = "https://selfhost.de/cgi-bin/api.pl"
+
+// Client the SelfHost client.
+type Client struct {
+	username string
+	password string
+
+	baseURL    string
+	HTTPClient *http.Client
+}
+
+// NewClient Creates a new Client.
+func NewClient(username, password string) *Client {
+	return &Client{
+		username:   username,
+		password:   password,
+		baseURL:    defaultBaseURL,
+		HTTPClient: &http.Client{Timeout: 5 * time.Second},
+	}
+}
+
+// UpdateTXTRecord updates content of an existing TXT record.
+func (c *Client) UpdateTXTRecord(ctx context.Context, recordID, content string) error {
+	endpoint, err := url.Parse(c.baseURL)
+	if err != nil {
+		return fmt.Errorf("parse URL:  %w", err)
+	}
+
+	query := endpoint.Query()
+	query.Set("username", c.username)
+	query.Set("password", c.password)
+	query.Set("rid", recordID)
+	query.Set("content", content)
+
+	endpoint.RawQuery = query.Encode()
+
+	req, err := http.NewRequestWithContext(ctx, http.MethodGet, endpoint.String(), nil)
+	if err != nil {
+		return fmt.Errorf("new HTTP request: %w", err)
+	}
+
+	resp, err := c.HTTPClient.Do(req)
+	if err != nil {
+		return errutils.NewHTTPDoError(req, err)
+	}
+
+	defer func() { _ = resp.Body.Close() }()
+
+	if resp.StatusCode/100 != 2 {
+		return errutils.NewUnexpectedResponseStatusCodeError(req, resp)
+	}
+
+	return nil
+}

providers/dns/selfhostde/internal/client_test.go

@@ -0,0 +1,65 @@
+package internal
+
+import (
+	"context"
+	"fmt"
+	"net/http"
+	"net/http/httptest"
+	"net/url"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func setupTest(t *testing.T) (*Client, *http.ServeMux) {
+	t.Helper()
+
+	mux := http.NewServeMux()
+	server := httptest.NewServer(mux)
+	t.Cleanup(server.Close)
+
+	client := NewClient("user", "secret")
+	serverURL, err := url.Parse(server.URL)
+	require.NoError(t, err)
+
+	client.baseURL = serverURL.String()
+
+	return client, mux
+}
+
+func TestClient_UpdateTXTRecord(t *testing.T) {
+	client, mux := setupTest(t)
+
+	mux.HandleFunc("GET /", func(rw http.ResponseWriter, req *http.Request) {
+		query := req.URL.Query()
+
+		fields := map[string]string{
+			"username": "user",
+			"password": "secret",
+			"rid":      "123456",
+			"content":  "txt",
+		}
+
+		for k, v := range fields {
+			value := query.Get(k)
+			if value != v {
+				http.Error(rw, fmt.Sprintf("%s: unexpected value: %s (%s)", k, value, v), http.StatusBadRequest)
+				return
+			}
+		}
+	})
+
+	err := client.UpdateTXTRecord(context.Background(), "123456", "txt")
+	require.NoError(t, err)
+}
+
+func TestClient_UpdateTXTRecord_error(t *testing.T) {
+	client, mux := setupTest(t)
+
+	mux.HandleFunc("GET /", func(rw http.ResponseWriter, _ *http.Request) {
+		http.Error(rw, http.StatusText(http.StatusBadRequest), http.StatusBadRequest)
+	})
+
+	err := client.UpdateTXTRecord(context.Background(), "123456", "txt")
+	require.Error(t, err)
+}

providers/dns/selfhostde/internal/readme.md

@@ -0,0 +1,7 @@
+# SelfHost.(de|eu)
+
+SelfHost doesn't provide an official API documentation and there are no endpoints for create a TXT record or delete a TXT record.
+
+## More
+
+The documentation found at https://kirk.selfhost.de/cgi-bin/selfhost?p=document&name=api (PDF) describes the DynDNS/ddns API endpoint and is not used by our client.