src/EventListener/AccessDeniedListener.php line 40

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  1. <?php
  3. /*
  4.  *  Friendu_Frontend // AccessDeniedSubscriber.php
  5.  *  
  6.  *  (c) 2018 Carsten Zeidler
  7.  */
  9. namespace App\EventListener;
  11. /**
  12.  * Description of AccessDeniedSubscriber
  13.  *
  14.  * @author Carsten
  15.  */
  16. use Symfony\Component\EventDispatcher\EventSubscriberInterface;
  17. use Symfony\Component\HttpFoundation\Response;
  18. use Symfony\Component\HttpFoundation\RedirectResponse;
  19. use Symfony\Component\HttpKernel\Event\GetResponseForExceptionEvent;
  20. use Symfony\Component\HttpKernel\KernelEvents;
  21. use Symfony\Bundle\FrameworkBundle\Routing\Router;
  22. use Symfony\Component\Security\Core\Exception\AccessDeniedException;
  23. use Symfony\Component\Security\Http\Firewall\AccessListener;
  24. use Symfony\Component\Security\Core\Security;
  26. class AccessDeniedListener implements EventSubscriberInterface {
  28.     protected $router;
  29.     protected $security;
  31.     public function __construct(Router $router, Security $security) {
  33.         $this->router = $router;
  35.         $this->security = $security;
  36.     }
  38.     public function onKernelException(GetResponseForExceptionEvent $event): void {
  40.         $exception = $event->getException();
  42.         if ($exception instanceof AccessDeniedException && !self::isThrownByFirewall($exception)) {
  43.             // Create your own response like in a custom access denied handler
  45.             if ($user = $this->security->getUser() === null) {
  47.                 $response = new RedirectResponse($this->router->generate('login'));
  48.             } else {
  50.                 $response = new RedirectResponse($this->router->generate('account_home'));
  51.             }
  53.             $event->setResponse($response);
  55.             $event->stopPropagation();
  56.         }
  57.     }
  59.     public static function getSubscribedEvents() {
  60.         return [
  61.             // Define the priority to execute our subscriber before the one from the security component
  62.             KernelEvents::EXCEPTION => ['onKernelException', 10000]
  63.         ];
  64.     }
  66.     /**
  67.      * Determines, by analyzing the stack trace, if an exception has been thrown by the firewall.
  68.      */
  69.     private static function isThrownByFirewall(\Throwable $exception): bool {
  70.         foreach ($exception->getTrace() as $stackItem) {
  71.             $class = $stackItem['class'] ?? null;
  72.             if ($class === AccessListener::class) {
  73.                 return true;
  74.             }
  75.         }
  77.         return false;
  78.     }
  80. }