Add FreeIPA UUID compatibility, fixes #7796

Ability to use ipauniqueid for the UUID of a user

apps/user_ldap/lib/access.php

@@ -1064,8 +1064,8 @@ class Access extends LDAPUtility {
 			return true;
 		}
 
-		//for now, supported attributes are entryUUID, nsuniqueid, objectGUID
-		$testAttributes = array('entryuuid', 'nsuniqueid', 'objectguid', 'guid');
+		//for now, supported attributes are entryUUID, nsuniqueid, objectGUID, ipaUniqueID
+		$testAttributes = array('entryuuid', 'nsuniqueid', 'objectguid', 'guid', 'ipauniqueid', 'ipauniqueid');
 
 		foreach($testAttributes as $attribute) {
 			$value = $this->readAttribute($dn, $attribute);