Do not try to recreate ldap user if they are already created (#9900)

* Do not try to recreate ldap user if they are already created

* just remove autoregister

Co-authored-by: techknowlogick <matti@mdranta.net>

models/login_source.go

@@ -461,7 +461,7 @@ var (
 
 // LoginViaLDAP queries if login/password is valid against the LDAP directory pool,
 // and create a local user if success when enabled.
-func LoginViaLDAP(user *User, login, password string, source *LoginSource, autoRegister bool) (*User, error) {
+func LoginViaLDAP(user *User, login, password string, source *LoginSource) (*User, error) {
 	sr := source.Cfg.(*LDAPConfig).SearchEntry(login, password, source.Type == LoginDLDAP)
 	if sr == nil {
 		// User not in LDAP, do nothing
@@ -491,7 +491,7 @@ func LoginViaLDAP(user *User, login, password string, source *LoginSource, autoR
 		}
 	}
 
-	if !autoRegister {
+	if user != nil {
 		if isAttributeSSHPublicKeySet && synchronizeLdapSSHPublicKeys(user, source, sr.SSHPublicKey) {
 			return user, RewriteAllPublicKeys()
 		}
@@ -602,7 +602,7 @@ func SMTPAuth(a smtp.Auth, cfg *SMTPConfig) error {
 
 // LoginViaSMTP queries if login/password is valid against the SMTP,
 // and create a local user if success when enabled.
-func LoginViaSMTP(user *User, login, password string, sourceID int64, cfg *SMTPConfig, autoRegister bool) (*User, error) {
+func LoginViaSMTP(user *User, login, password string, sourceID int64, cfg *SMTPConfig) (*User, error) {
 	// Verify allowed domains.
 	if len(cfg.AllowedDomains) > 0 {
 		idx := strings.Index(login, "@")
@@ -633,7 +633,7 @@ func LoginViaSMTP(user *User, login, password string, sourceID int64, cfg *SMTPC
 		return nil, err
 	}
 
-	if !autoRegister {
+	if user != nil {
 		return user, nil
 	}
 
@@ -665,7 +665,7 @@ func LoginViaSMTP(user *User, login, password string, sourceID int64, cfg *SMTPC
 
 // LoginViaPAM queries if login/password is valid against the PAM,
 // and create a local user if success when enabled.
-func LoginViaPAM(user *User, login, password string, sourceID int64, cfg *PAMConfig, autoRegister bool) (*User, error) {
+func LoginViaPAM(user *User, login, password string, sourceID int64, cfg *PAMConfig) (*User, error) {
 	if err := pam.Auth(cfg.ServiceName, login, password); err != nil {
 		if strings.Contains(err.Error(), "Authentication failure") {
 			return nil, ErrUserNotExist{0, login, 0}
@@ -673,7 +673,7 @@ func LoginViaPAM(user *User, login, password string, sourceID int64, cfg *PAMCon
 		return nil, err
 	}
 
-	if !autoRegister {
+	if user != nil {
 		return user, nil
 	}
 
@@ -691,7 +691,7 @@ func LoginViaPAM(user *User, login, password string, sourceID int64, cfg *PAMCon
 }
 
 // ExternalUserLogin attempts a login using external source types.
-func ExternalUserLogin(user *User, login, password string, source *LoginSource, autoRegister bool) (*User, error) {
+func ExternalUserLogin(user *User, login, password string, source *LoginSource) (*User, error) {
 	if !source.IsActived {
 		return nil, ErrLoginSourceNotActived
 	}
@@ -699,11 +699,11 @@ func ExternalUserLogin(user *User, login, password string, source *LoginSource,
 	var err error
 	switch source.Type {
 	case LoginLDAP, LoginDLDAP:
-		user, err = LoginViaLDAP(user, login, password, source, autoRegister)
+		user, err = LoginViaLDAP(user, login, password, source)
 	case LoginSMTP:
-		user, err = LoginViaSMTP(user, login, password, source.ID, source.Cfg.(*SMTPConfig), autoRegister)
+		user, err = LoginViaSMTP(user, login, password, source.ID, source.Cfg.(*SMTPConfig))
 	case LoginPAM:
-		user, err = LoginViaPAM(user, login, password, source.ID, source.Cfg.(*PAMConfig), autoRegister)
+		user, err = LoginViaPAM(user, login, password, source.ID, source.Cfg.(*PAMConfig))
 	default:
 		return nil, ErrUnsupportedLoginType
 	}
@@ -783,7 +783,7 @@ func UserSignIn(username, password string) (*User, error) {
 				return nil, ErrLoginSourceNotExist{user.LoginSource}
 			}
 
-			return ExternalUserLogin(user, user.LoginName, password, &source, false)
+			return ExternalUserLogin(user, user.LoginName, password, &source)
 		}
 	}
 
@@ -797,7 +797,7 @@ func UserSignIn(username, password string) (*User, error) {
 			// don't try to authenticate against OAuth2 and SSPI sources here
 			continue
 		}
-		authUser, err := ExternalUserLogin(nil, username, password, source, true)
+		authUser, err := ExternalUserLogin(nil, username, password, source)
 		if err == nil {
 			return authUser, nil
 		}