public function actionTitle()
 {
     $url = $this->getQuery('url');
     if (empty($url)) {
         throw BadRequestHttpException('common', 'parameters_missing');
     }
     $url = urldecode($url);
     $page = Page::getByShortUrl($url);
     if (!empty($page->title)) {
         return ['title' => $page->title];
     }
     $article = Article::getByUrl($url);
     return ['title' => empty($article->name) ? '' : $article->name];
 }