Support LDAP search by user tag

object/check.go

@@ -282,6 +282,10 @@ func CheckUserPermission(requestUserId, userId string, strict bool, lang string)
 	if userId != "" {
 		targetUser := GetUser(userId)
 		if targetUser == nil {
+			if strings.HasPrefix(requestUserId, "built-in/") {
+				return true, nil
+			}
+
 			return false, fmt.Errorf(i18n.Translate(lang, "general:The user: %s doesn't exist"), userId)
 		}
 

object/user.go

@@ -250,6 +250,16 @@ func GetUsers(owner string) []*User {
 	return users
 }
 
+func GetUsersByTag(owner string, tag string) []*User {
+	users := []*User{}
+	err := adapter.Engine.Desc("created_time").Find(&users, &User{Owner: owner, Tag: tag})
+	if err != nil {
+		panic(err)
+	}
+
+	return users
+}
+
 func GetSortedUsers(owner string, sorter string, limit int) []*User {
 	users := []*User{}
 	err := adapter.Engine.Desc(sorter).Limit(limit, 0).Find(&users, &User{Owner: owner})