vendor/contao/core-bundle/src/EventListener/BackendPreviewRedirectListener.php line 34

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  1. <?php
  3. declare(strict_types=1);
  5. /*
  6.  * This file is part of Contao.
  7.  *
  8.  * (c) Leo Feyer
  9.  *
  10.  * @license LGPL-3.0-or-later
  11.  */
  13. namespace Contao\CoreBundle\EventListener;
  15. use Contao\CoreBundle\Routing\ScopeMatcher;
  16. use Symfony\Component\HttpFoundation\RedirectResponse;
  17. use Symfony\Component\HttpKernel\Event\RequestEvent;
  19. /**
  20.  * @internal
  21.  */
  22. class BackendPreviewRedirectListener
  23. {
  24.     /**
  25.      * @var ScopeMatcher
  26.      */
  27.     private $scopeMatcher;
  29.     public function __construct(ScopeMatcher $scopeMatcher)
  30.     {
  31.         $this->scopeMatcher = $scopeMatcher;
  32.     }
  34.     public function __invoke(RequestEvent $event): void
  35.     {
  36.         if (!$event->isMasterRequest()) {
  37.             return;
  38.         }
  40.         $request = $event->getRequest();
  42.         if (
  43.             !$request->attributes->has('_preview')
  44.             || true !== $request->attributes->get('_preview')
  45.             || $this->scopeMatcher->isFrontendRequest($request)
  46.             || ($request->attributes->has('_allow_preview') && true === $request->attributes->get('_allow_preview'))
  47.         ) {
  48.             return;
  49.         }
  51.         $event->setResponse(new RedirectResponse($request->getSchemeAndHttpHost().$request->getPathInfo().(null !== ($qs = $request->server->get('QUERY_STRING')) ? '?'.$qs : '')));
  52.     }
  53. }