src/EventSubscriber/MaintenanceSubscriber.php line 23

  1. <?php
  3. namespace Cms\EventSubscriber;
  5. use Cms\String\MaintenanceTokenChecker;
  6. use Symfony\Component\DependencyInjection\Attribute\Autowire;
  7. use Symfony\Component\EventDispatcher\EventSubscriberInterface;
  8. use Symfony\Component\HttpFoundation\RequestStack;
  9. use Symfony\Component\HttpFoundation\Response;
  10. use Symfony\Component\HttpKernel\Event\RequestEvent;
  11. use Symfony\Component\HttpKernel\KernelEvents;
  12. use Twig\Environment;
  14. class MaintenanceSubscriber implements EventSubscriberInterface
  15. {
  16.     public function __construct(
  17.         private readonly Environment $twig,
  18.         private readonly RequestStack $requestStack,
  19.         #[Autowire('%cms.is_maintenance%')] private readonly bool $isMaintenance,
  20.         #[Autowire('%cms.is_maintenance.token%')] private readonly string $maintenanceToken,
  21.     ) {}
  23.     public function onKernelRequest(RequestEvent $event): void
  24.     {
  25.         $request = $event->getRequest();
  26.         $token = $request->query->get('token', null);
  28.         if (
  29.             $this->isMaintenance
  30.             && (!$token || $this->maintenanceToken !== $token)
  31.             && !\str_starts_with($request->attributes->get('_route'), '_')
  32.             ) {
  33.             $response = new Response();
  34.             if ($this->requestStack->getMainRequest() === $request) {
  35.                 $response->setContent($this->twig->render('maintenance.html.twig'));
  36.             }
  38.             $event->setResponse($response);
  39.         }
  40.     }
  42.     public static function getSubscribedEvents(): array
  43.     {
  44.         return [
  45.             KernelEvents::REQUEST => ['onKernelRequest', 0],
  46.         ];
  47.     }
  48. }