Pre-register OAuth application for tea (go-gitea#27509)

It remains to implement OAuth login in tea
https://gitea.com/gitea/tea/issues/598

Fixes go-gitea#27510

Author: hickford

custom/conf/app.example.ini

@@ -548,7 +548,8 @@ ENABLE = true
 ;; Pre-register OAuth2 applications for some universally useful services
 ;; * https://github.com/hickford/git-credential-oauth
 ;; * https://github.com/git-ecosystem/git-credential-manager
-;DEFAULT_APPLICATIONS = git-credential-oauth, git-credential-manager
+;; * https://gitea.com/gitea/tea
+;DEFAULT_APPLICATIONS = git-credential-oauth, git-credential-manager, tea
 
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

docs/content/administration/config-cheat-sheet.en-us.md

@@ -1107,7 +1107,7 @@ This section only does "set" config, a removed config key from this section won'
 - `JWT_SECRET_URI`: **_empty_**: Instead of defining JWT_SECRET in the configuration, this configuration option can be used to give Gitea a path to a file that contains the secret (example value: `file:/etc/gitea/oauth2_jwt_secret`)
 - `JWT_SIGNING_PRIVATE_KEY_FILE`: **jwt/private.pem**: Private key file path used to sign OAuth2 tokens. The path is relative to `APP_DATA_PATH`. This setting is only needed if `JWT_SIGNING_ALGORITHM` is set to `RS256`, `RS384`, `RS512`, `ES256`, `ES384` or `ES512`. The file must contain a RSA or ECDSA private key in the PKCS8 format. If no key exists a 4096 bit key will be created for you.
 - `MAX_TOKEN_LENGTH`: **32767**: Maximum length of token/cookie to accept from OAuth2 provider
-- `DEFAULT_APPLICATIONS`: **git-credential-oauth, git-credential-manager**: Pre-register OAuth applications for some services on startup. See the [OAuth2 documentation](/development/oauth2-provider.md) for the list of available options.
+- `DEFAULT_APPLICATIONS`: **git-credential-oauth, git-credential-manager, tea**: Pre-register OAuth applications for some services on startup. See the [OAuth2 documentation](/development/oauth2-provider.md) for the list of available options.
 
 ## i18n (`i18n`)
 

docs/content/administration/config-cheat-sheet.zh-cn.md

@@ -1056,7 +1056,7 @@ Gitea 创建以下非唯一队列：
 - `JWT_SECRET_URI`：**_empty_**：可以使用此配置选项，而不是在配置中定义`JWT_SECRET`，以向Gitea提供包含密钥的文件的路径（示例值：`file:/etc/gitea/oauth2_jwt_secret`）。
 - `JWT_SIGNING_PRIVATE_KEY_FILE`：**jwt/private.pem**：用于签署OAuth2令牌的私钥文件路径。路径相对于`APP_DATA_PATH`。仅当`JWT_SIGNING_ALGORITHM`设置为`RS256`，`RS384`，`RS512`，`ES256`，`ES384`或`ES512`时才需要此设置。文件必须包含PKCS8格式的RSA或ECDSA私钥。如果不存在密钥，则将为您创建一个4096位密钥。
 - `MAX_TOKEN_LENGTH`：**32767**：从OAuth2提供者接受的令牌/cookie的最大长度。
-- `DEFAULT_APPLICATIONS`：**git-credential-oauth，git-credential-manager**：在启动时预注册用于某些服务的OAuth应用程序。有关可用选项列表，请参阅[OAuth2文档](/development/oauth2-provider.md)。
+- `DEFAULT_APPLICATIONS`：**git-credential-oauth，git-credential-manager, tea**：在启动时预注册用于某些服务的OAuth应用程序。有关可用选项列表，请参阅[OAuth2文档](/development/oauth2-provider.md)。
 
 ## i18n (`i18n`)
 

docs/content/development/oauth2-provider.en-us.md

@@ -86,6 +86,7 @@ Gitea creates OAuth applications for the following services by default on startu
 |-----------|-----------|---------|
 |[git-credential-oauth](https://github.com/hickford/git-credential-oauth)|Git credential helper|`a4792ccc-144e-407e-86c9-5e7d8d9c3269`|
 |[Git Credential Manager](https://github.com/git-ecosystem/git-credential-manager)|Git credential helper|`e90ee53c-94e2-48ac-9358-a874fb9e0662`|
+|[tea](https://gitea.com/gitea/tea)|tea|`d57cb8c4-630c-4168-8324-ec79935e18d4`|
 
 To prevent unexpected behavior, they are being displayed as locked in the UI and their creation can instead be controlled by the `DEFAULT_APPLICATIONS` parameter in `app.ini`.
 

models/auth/oauth2.go

@@ -66,6 +66,11 @@ func BuiltinApplications() map[string]*BuiltinOAuth2Application {
 		DisplayName:  "Git Credential Manager",
 		RedirectURIs: []string{"http://127.0.0.1", "https://127.0.0.1"},
 	}
+	m["d57cb8c4-630c-4168-8324-ec79935e18d4"] = &BuiltinOAuth2Application{
+		ConfigName:   "tea",
+		DisplayName:  "tea",
+		RedirectURIs: []string{"http://127.0.0.1", "https://127.0.0.1"},
+	}
 	return m
 }
 

modules/setting/oauth2.go

@@ -110,7 +110,7 @@ var OAuth2 = struct {
 	JWTSigningAlgorithm:        "RS256",
 	JWTSigningPrivateKeyFile:   "jwt/private.pem",
 	MaxTokenLength:             math.MaxInt16,
-	DefaultApplications:        []string{"git-credential-oauth", "git-credential-manager"},
+	DefaultApplications:        []string{"git-credential-oauth", "git-credential-manager", "tea"},
 }
 
 func loadOAuth2From(rootCfg ConfigProvider) {