feat: add oidc support (#1725)

* feat: add the ui for configuring the third-party standard OAuth2.0/OIDC.

- update SystemSetting.js
- add setup ui
- add configuration

* feat: add the ui for "allow the OAuth 2.0 to login"

- update SystemSetting.js

* feat: add OAuth 2.0 web ui and its process functions

- update common.js
- update AuthLogin.js
- update config.js

* fix: missing "Userinfo" endpoint configuration entry, used by OAuth clients to request user information from the IdP.

- update config.js
- update SystemSetting.js

* feat: updated the icons for Lark and OIDC to match the style of the icons for WeChat, EMail, GitHub.

- update lark.svg
- new oidc.svg

* refactor: Changing OAuth 2.0 to OIDC

* feat: add OIDC login method

* feat: Add support for OIDC login to the backend

* fix: Change the AppId and AppSecret on the Web UI to the standard usage: ClientId, ClientSecret.

* feat: Support quick configuration of OIDC through Well-Known Discovery Endpoint

* feat: Standardize terminology, add well-known configuration

- Change the AppId and AppSecret on the Server End to the standard usage: ClientId, ClientSecret.
- add Well-Known configuration to store in database, no actual use in server end but store and display in web ui only

router/api.go

@@ -23,6 +23,7 @@ func SetApiRouter(router *gin.Engine) {
 		apiRouter.GET("/reset_password", middleware.CriticalRateLimit(), middleware.TurnstileCheck(), controller.SendPasswordResetEmail)
 		apiRouter.POST("/user/reset", middleware.CriticalRateLimit(), controller.ResetPassword)
 		apiRouter.GET("/oauth/github", middleware.CriticalRateLimit(), auth.GitHubOAuth)
+		apiRouter.GET("/oauth/oidc", middleware.CriticalRateLimit(), auth.OidcAuth)
 		apiRouter.GET("/oauth/lark", middleware.CriticalRateLimit(), auth.LarkOAuth)
 		apiRouter.GET("/oauth/state", middleware.CriticalRateLimit(), auth.GenerateOAuthCode)
 		apiRouter.GET("/oauth/wechat", middleware.CriticalRateLimit(), auth.WeChatAuth)