feat(oauth2): add gitea oauth2 support

add gitea oauth2 support

Signed-off-by: ysicing <i@ysicing.me>

model/user.go

@@ -4,7 +4,8 @@ import (
 	"fmt"
 	"time"
 
-	"github.com/google/go-github/github"
+	"code.gitea.io/sdk/gitea"
+	"github.com/google/go-github/v47/github"
 	"github.com/xanzy/go-gitlab"
 
 	"github.com/naiba/nezha/pkg/utils"
@@ -25,6 +26,21 @@ type User struct {
 	SuperAdmin   bool      `json:"super_admin,omitempty"`   // 超级管理员
 }
 
+func NewUserFromGitea(gu *gitea.User) User {
+	var u User
+	u.ID = uint64(gu.ID)
+	u.Login = gu.UserName
+	u.AvatarURL = gu.AvatarURL
+	u.Name = gu.FullName
+	if u.Name == "" {
+		u.Name = u.Login
+	}
+	u.Blog = gu.Website
+	u.Email = gu.Email
+	u.Bio = gu.Description
+	return u
+}
+
 func NewUserFromGitlab(gu *gitlab.User) User {
 	var u User
 	u.ID = uint64(gu.ID)