#3515 use alert instead 500 for duplicated login source name

conf/locale/locale_en-US.ini

@@ -1028,6 +1028,7 @@ auths.delete_auth_title = Authentication Deletion
 auths.delete_auth_desc = This authentication is going to be deleted, do you want to continue?
 auths.still_in_used = This authentication is still used by some users, please delete or convert these users to another login type first.
 auths.deletion_success = Authentication has been deleted successfully!
+auths.login_source_exist = Login source '%s' already exists.
 
 config.server_config = Server Configuration
 config.app_name = Application Name

models/error.go

@@ -602,24 +602,37 @@ func (err ErrAttachmentNotExist) Error() string {
 	return fmt.Sprintf("attachment does not exist [id: %d, uuid: %s]", err.ID, err.UUID)
 }
 
-//    _____          __  .__                   __  .__               __  .__
-//   /  _  \  __ ___/  |_|  |__   ____   _____/  |_|__| ____ _____ _/  |_|__| ____   ____
-//  /  /_\  \|  |  \   __\  |  \_/ __ \ /    \   __\  |/ ___\\__  \\   __\  |/  _ \ /    \
-// /    |    \  |  /|  | |   Y  \  ___/|   |  \  | |  \  \___ / __ \|  | |  (  <_> )   |  \
-// \____|__  /____/ |__| |___|  /\___  >___|  /__| |__|\___  >____  /__| |__|\____/|___|  /
-//         \/                 \/     \/     \/             \/     \/                    \/
-
-type ErrAuthenticationNotExist struct {
+// .____                 .__           _________
+// |    |    ____   ____ |__| ____    /   _____/ ____  __ _________   ____  ____
+// |    |   /  _ \ / ___\|  |/    \   \_____  \ /  _ \|  |  \_  __ \_/ ___\/ __ \
+// |    |__(  <_> ) /_/  >  |   |  \  /        (  <_> )  |  /|  | \/\  \__\  ___/
+// |_______ \____/\___  /|__|___|  / /_______  /\____/|____/ |__|    \___  >___  >
+//         \/    /_____/         \/          \/                          \/    \/
+
+type ErrLoginSourceNotExist struct {
 	ID int64
 }
 
-func IsErrAuthenticationNotExist(err error) bool {
-	_, ok := err.(ErrAuthenticationNotExist)
+func IsErrLoginSourceNotExist(err error) bool {
+	_, ok := err.(ErrLoginSourceNotExist)
+	return ok
+}
+
+func (err ErrLoginSourceNotExist) Error() string {
+	return fmt.Sprintf("login source does not exist [id: %d]", err.ID)
+}
+
+type ErrLoginSourceAlreadyExist struct {
+	Name string
+}
+
+func IsErrLoginSourceAlreadyExist(err error) bool {
+	_, ok := err.(ErrLoginSourceAlreadyExist)
 	return ok
 }
 
-func (err ErrAuthenticationNotExist) Error() string {
-	return fmt.Sprintf("authentication does not exist [id: %d]", err.ID)
+func (err ErrLoginSourceAlreadyExist) Error() string {
+	return fmt.Sprintf("login source already exists [name: %s]", err.Name)
 }
 
 // ___________

models/login.go

@@ -25,7 +25,6 @@ import (
 )
 
 var (
-	ErrAuthenticationAlreadyExist = errors.New("Authentication already exist")
 	ErrAuthenticationUserUsed = errors.New("Authentication has been used by some users")
 )
 
@@ -230,8 +229,15 @@ func CountLoginSources() int64 {
 	return count
 }
 
-func CreateSource(source *LoginSource) error {
-	_, err := x.Insert(source)
+func CreateLoginSource(source *LoginSource) error {
+	has, err := x.Get(&LoginSource{Name: source.Name})
+	if err != nil {
+		return err
+	} else if has {
+		return ErrLoginSourceAlreadyExist{source.Name}
+	}
+
+	_, err = x.Insert(source)
 	return err
 }
 
@@ -247,7 +253,7 @@ func GetLoginSourceByID(id int64) (*LoginSource, error) {
 	if err != nil {
 		return nil, err
 	} else if !has {
-		return nil, ErrAuthenticationNotExist{id}
+		return nil, ErrLoginSourceNotExist{id}
 	}
 	return source, nil
 }
@@ -542,7 +548,7 @@ func UserSignIn(uname, passwd string) (*User, error) {
 			if err != nil {
 				return nil, err
 			} else if !hasSource {
-				return nil, ErrLoginSourceNotExist
+				return nil, ErrLoginSourceNotExist{u.LoginSource}
 			}
 
 			return ExternalUserLogin(u, u.LoginName, passwd, &source, false)

models/user.go

@@ -46,7 +46,6 @@ var (
 	ErrEmailNotExist         = errors.New("E-mail does not exist")
 	ErrEmailNotActivated     = errors.New("E-mail address has not been activated")
 	ErrUserNameIllegal       = errors.New("User name contains illegal characters")
-	ErrLoginSourceNotExist   = errors.New("Login source does not exist")
 	ErrLoginSourceNotActived = errors.New("Login source is not actived")
 	ErrUnsupportedLoginType  = errors.New("Login source is unknown")
 )

routers/admin/auths.go

@@ -146,13 +146,18 @@ func NewAuthSourcePost(ctx *context.Context, form auth.AuthenticationForm) {
 		return
 	}
 
-	if err := models.CreateSource(&models.LoginSource{
+	if err := models.CreateLoginSource(&models.LoginSource{
 		Type:      models.LoginType(form.Type),
 		Name:      form.Name,
 		IsActived: form.IsActive,
 		Cfg:       config,
 	}); err != nil {
+		if models.IsErrLoginSourceAlreadyExist(err) {
+			ctx.Data["Err_Name"] = true
+			ctx.RenderWithErr(ctx.Tr("admin.auths.login_source_exist", err.(models.ErrLoginSourceAlreadyExist).Name), AUTH_NEW, form)
+		} else {
 			ctx.Handle(500, "CreateSource", err)
+		}
 		return
 	}
 

routers/api/v1/admin/user.go

@@ -21,7 +21,7 @@ func parseLoginSource(ctx *context.APIContext, u *models.User, sourceID int64, l
 
 	source, err := models.GetLoginSourceByID(sourceID)
 	if err != nil {
-		if models.IsErrAuthenticationNotExist(err) {
+		if models.IsErrLoginSourceNotExist(err) {
 			ctx.Error(422, "", err)
 		} else {
 			ctx.Error(500, "GetLoginSourceByID", err)