vendor/symfony/security-http/Firewall/AnonymousAuthenticationListener.php line 29

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  1. <?php
  3. /*
  4.  * This file is part of the Symfony package.
  5.  *
  6.  * (c) Fabien Potencier <[email protected]>
  7.  *
  8.  * For the full copyright and license information, please view the LICENSE
  9.  * file that was distributed with this source code.
  10.  */
  12. namespace Symfony\Component\Security\Http\Firewall;
  14. use Psr\Log\LoggerInterface;
  15. use Symfony\Component\HttpKernel\Event\RequestEvent;
  16. use Symfony\Component\Security\Core\Authentication\AuthenticationManagerInterface;
  17. use Symfony\Component\Security\Core\Authentication\Token\AnonymousToken;
  18. use Symfony\Component\Security\Core\Authentication\Token\Storage\TokenStorageInterface;
  19. use Symfony\Component\Security\Core\Exception\AuthenticationException;
  21. /**
  22.  * AnonymousAuthenticationListener automatically adds a Token if none is
  23.  * already present.
  24.  *
  25.  * @author Fabien Potencier <[email protected]>
  26.  *
  27.  * @final since Symfony 4.3
  28.  */
  29. class AnonymousAuthenticationListener implements ListenerInterface
  30. {
  31.     use LegacyListenerTrait;
  33.     private $tokenStorage;
  34.     private $secret;
  35.     private $authenticationManager;
  36.     private $logger;
  38.     public function __construct(TokenStorageInterface $tokenStorage, string $secret, LoggerInterface $logger = null, AuthenticationManagerInterface $authenticationManager = null)
  39.     {
  40.         $this->tokenStorage = $tokenStorage;
  41.         $this->secret = $secret;
  42.         $this->authenticationManager = $authenticationManager;
  43.         $this->logger = $logger;
  44.     }
  46.     /**
  47.      * Handles anonymous authentication.
  48.      */
  49.     public function __invoke(RequestEvent $event)
  50.     {
  51.         if (null !== $this->tokenStorage->getToken()) {
  52.             return;
  53.         }
  55.         try {
  56.             $token = new AnonymousToken($this->secret, 'anon.', []);
  57.             if (null !== $this->authenticationManager) {
  58.                 $token = $this->authenticationManager->authenticate($token);
  59.             }
  61.             $this->tokenStorage->setToken($token);
  63.             if (null !== $this->logger) {
  64.                 $this->logger->info('Populated the TokenStorage with an anonymous Token.');
  65.             }
  66.         } catch (AuthenticationException $failed) {
  67.             if (null !== $this->logger) {
  68.                 $this->logger->info('Anonymous authentication failed.', ['exception' => $failed]);
  69.             }
  70.         }
  71.     }
  72. }