public static function isPictureService()
 {
     $domain = gethostbyaddr($_SERVER['REMOTE_ADDR']);
     $referer = XApp_Service_Entry_Utils::getReferer(false);
     $pageURL = self::getUrl();
     if (self::isDownload() || strpos($pageURL, 'fileUpdate') !== false) {
         xapp_import('xapp.Utils.Strings');
         if ($domain === 'ec2-75-101-241-140.compute-1.amazonaws.com') {
             return true;
         }
         if ($domain === 'ec2-50-19-185-53.compute-1.amazonaws.com') {
             return true;
         }
         if (XApp_Utils_Strings::startsWith($referer, 'http://cdn.pixlr.com/editor/')) {
             return true;
         }
     }
     return false;
 }