treat dn as any other attribute when building the search() return array

apps/user_ldap/group_ldap.php

@@ -491,7 +491,7 @@ class GROUP_LDAP extends BackendUtility implements \OCP\GroupInterface {
 			array($this->access->connection->ldapGroupDisplayName, 'dn'));
 		if (is_array($groups)) {
 			foreach ($groups as $groupobj) {
-				$groupDN = $groupobj['dn'];
+				$groupDN = $groupobj['dn'][0];
 				$allGroups[$groupDN] = $groupobj;
 				$nestedGroups = $this->access->connection->ldapNestedGroups;
 				if (!empty($nestedGroups)) {

apps/user_ldap/lib/access.php

@@ -532,7 +532,7 @@ class Access extends LDAPUtility implements user\IUserTools {
 				$nameByLDAP = $ldapObject[$nameAttribute][0];
 			}
 
-			$ocName = $this->dn2ocname($ldapObject['dn'], $nameByLDAP, $isUsers);
+			$ocName = $this->dn2ocname($ldapObject['dn'][0], $nameByLDAP, $isUsers);
 			if($ocName) {
 				$ownCloudNames[] = $ocName;
 				if($isUsers) {
@@ -692,7 +692,7 @@ class Access extends LDAPUtility implements user\IUserTools {
 	 */
 	public function batchApplyUserAttributes(array $ldapRecords){
 		foreach($ldapRecords as $userRecord) {
-			$ocName  = $this->dn2ocname($userRecord['dn'], $userRecord[$this->connection->ldapUserDisplayName]);
+			$ocName  = $this->dn2ocname($userRecord['dn'][0], $userRecord[$this->connection->ldapUserDisplayName]);
 			$this->cacheUserExists($ocName);
 			$user = $this->userManager->get($ocName);
 			$user->processAttributes($userRecord);
@@ -1012,7 +1012,7 @@ class Access extends LDAPUtility implements user\IUserTools {
 								$this->sanitizeDN($item[$key])
 								: $item[$key];
 						} else {
-							$selection[$i][$key] = $this->sanitizeDN($item[$key]);
+							$selection[$i][$key] = [$this->sanitizeDN($item[$key])];
 						}
 					}
 

apps/user_ldap/user_ldap.php

@@ -78,7 +78,7 @@ class USER_LDAP extends BackendUtility implements \OCP\IUserBackend, \OCP\UserIn
 	public function loginName2UserName($loginName) {
 		try {
 			$ldapRecord = $this->getLDAPUserByLoginName($loginName);
-			$user = $this->access->userManager->get($ldapRecord['dn']);
+			$user = $this->access->userManager->get($ldapRecord['dn'][0]);
 			if($user instanceof OfflineUser) {
 				return false;
 			}
@@ -119,7 +119,7 @@ class USER_LDAP extends BackendUtility implements \OCP\IUserBackend, \OCP\UserIn
 		} catch(\Exception $e) {
 			return false;
 		}
-		$dn = $ldapRecord['dn'];
+		$dn = $ldapRecord['dn'][0];
 		$user = $this->access->userManager->get($dn);
 
 		if(!$user instanceof User) {