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

model/user.go

@@ -39,6 +39,7 @@ type User struct {
 	GitHubId         string `json:"github_id" gorm:"column:github_id;index"`
 	WeChatId         string `json:"wechat_id" gorm:"column:wechat_id;index"`
 	LarkId           string `json:"lark_id" gorm:"column:lark_id;index"`
+	OidcId           string `json:"oidc_id" gorm:"column:oidc_id;index"`
 	VerificationCode string `json:"verification_code" gorm:"-:all"`                                    // this field is only for Email verification, don't save it to database!
 	AccessToken      string `json:"access_token" gorm:"type:char(32);column:access_token;uniqueIndex"` // this token is for system management
 	Quota            int64  `json:"quota" gorm:"bigint;default:0"`
@@ -245,6 +246,14 @@ func (user *User) FillUserByLarkId() error {
 	return nil
 }
 
+func (user *User) FillUserByOidcId() error {
+	if user.OidcId == "" {
+		return errors.New("oidc id 为空！")
+	}
+	DB.Where(User{OidcId: user.OidcId}).First(user)
+	return nil
+}
+
 func (user *User) FillUserByWeChatId() error {
 	if user.WeChatId == "" {
 		return errors.New("WeChat id 为空！")
@@ -277,6 +286,10 @@ func IsLarkIdAlreadyTaken(githubId string) bool {
 	return DB.Where("lark_id = ?", githubId).Find(&User{}).RowsAffected == 1
 }
 
+func IsOidcIdAlreadyTaken(oidcId string) bool {
+	return DB.Where("oidc_id = ?", oidcId).Find(&User{}).RowsAffected == 1
+}
+
 func IsUsernameAlreadyTaken(username string) bool {
 	return DB.Where("username = ?", username).Find(&User{}).RowsAffected == 1
 }