public static function import($params = array())
 {
     global $wp_filter;
     // Set error handler
     @set_error_handler('Ai1wm_Handler::error');
     // Set params
     if (empty($params)) {
         $params = ai1wm_urldecode($_REQUEST);
     }
     // Set priority
     $priority = 10;
     if (isset($params['priority'])) {
         $priority = (int) $params['priority'];
     }
     // Set secret key
     $secret_key = null;
     if (isset($params['secret_key'])) {
         $secret_key = $params['secret_key'];
     }
     // Verify secret key by using the value in the database, not in cache
     if ($secret_key !== get_option(AI1WM_SECRET_KEY)) {
         Ai1wm_Status::error(sprintf(__('Unable to authenticate your request with secret_key = "%s"', AI1WM_PLUGIN_NAME), $secret_key), __('Unable to import', AI1WM_PLUGIN_NAME));
         exit;
     }
     // Get hook
     if (isset($wp_filter['ai1wm_import']) && ($filters = $wp_filter['ai1wm_import']) && ksort($filters)) {
         while ($hooks = current($filters)) {
             if ($priority == key($filters)) {
                 foreach ($hooks as $hook) {
                     try {
                         $params = call_user_func_array($hook['function'], array($params));
                     } catch (Ai1wm_Import_Retry_Exception $exception) {
                         status_header($exception->getCode());
                         echo json_encode(array('message' => $exception->getMessage()));
                         exit;
                     } catch (Exception $e) {
                         Ai1wm_Status::error($e->getMessage(), __('Unable to import', AI1WM_PLUGIN_NAME));
                         exit;
                     }
                 }
                 // Set completed
                 $completed = true;
                 if (isset($params['completed'])) {
                     $completed = (bool) $params['completed'];
                 }
                 // Log request
                 if (empty($params['priority']) || is_file(ai1wm_import_path($params))) {
                     Ai1wm_Log::import($params);
                 }
                 // Do request
                 if ($completed === false || ($next = next($filters)) && ($params['priority'] = key($filters))) {
                     return Ai1wm_Http::get(admin_url('admin-ajax.php?action=ai1wm_import'), $params);
                 }
             }
             next($filters);
         }
     }
 }
 /**
  * Route to method
  *
  * @param  string $method Name of the method
  * @return void
  */
 protected function route_to($method)
 {
     // Redirect arguments
     $this->args['method'] = $method;
     $this->args['secret_key'] = get_site_option(AI1WM_SECRET_KEY, false, false);
     // Check the status of the export, maybe we need to stop it
     if (!is_file($this->storage()->archive())) {
         exit;
     }
     // HTTP request
     Ai1wm_Http::get(admin_url('admin-ajax.php?action=ai1wm_import'), $this->args);
 }