src/EventListener/ExceptionListener.php line 20

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  1. <?php
  3. namespace App\EventListener;
  5. use Symfony\Component\EventDispatcher\EventSubscriberInterface;
  6. use Symfony\Component\HttpKernel\Event\ExceptionEvent;
  7. use Symfony\Component\HttpKernel\KernelEvents;
  8. use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
  9. use Symfony\Component\HttpFoundation\Response;
  10. use Twig\Environment;
  12. class ExceptionListener implements EventSubscriberInterface {
  14.     protected $twig;
  16.     public function __construct(Environment $twig) {
  17.         $this->twig = $twig;
  18.     }
  20.     public function onKernelException(ExceptionEvent $event) {
  21.         $exception = $event->getThrowable();
  23.         if ($exception instanceof NotFoundHttpException) {
  24.             $response = new Response();
  25.             $response->setContent($this->twig->render('shared/404.html.twig'));
  26.             $response->setStatusCode($exception->getStatusCode());
  27.             $response->headers->replace($exception->getHeaders());
  29.             $event->setResponse($response);
  30.         }
  31.     }
  33.     public static function getSubscribedEvents() {
  34.         return array(
  35.             KernelEvents::EXCEPTION => 'onKernelException'
  36.         );
  37.     }
  39. }