* Fix wrong return value for failed detection

* Using now Yii's IP detection method (supports `FORWARDED_FOR` as well)

Author: robin.kluth

src/LdapAuth.php

@@ -92,11 +92,11 @@ public function autoDetect($overrideIp = false)
             return 0;
         }
 
-        $clientIp = $overrideIp ? $overrideIp : (isset($_SERVER['HTTP_X_FORWARDED_FOR']) ? $_SERVER['HTTP_X_FORWARDED_FOR'] : (isset($_SERVER['REMOTE_ADDR']) ? $_SERVER['REMOTE_ADDR'] : null));
+        $clientIp = $overrideIp ? $overrideIp : Yii::$app->request->getUserIP();
 
         if (empty($clientIp)) {
             Yii::debug('[Autodetect] No client ip detected, skipping auto detection', __METHOD__);
-            return 0;
+            return false;
         }
 
         $index = 0;