public function postLaravelLogin()
 {
     $post = json_decode(file_get_contents("php://input"));
     if (User::checkFBUser($post->fb_id) && !Auth::check()) {
         Auth::loginUsingId(User::getUserIdByFbId($post->fb_id));
         $success = 1;
     } else {
         $success = 0;
     }
     return json_encode(array('success' => $success));
 }