vendor/symfony/security-http/Firewall/AccessListener.php line 42

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  1. <?php
  2. /*
  3.  * This file is part of the Symfony package.
  4.  *
  5.  * (c) Fabien Potencier <fabien@symfony.com>
  6.  *
  7.  * For the full copyright and license information, please view the LICENSE
  8.  * file that was distributed with this source code.
  9.  */
  10. namespace Symfony\Component\Security\Http\Firewall;
  11. use Symfony\Component\HttpFoundation\Request;
  12. use Symfony\Component\HttpKernel\Event\RequestEvent;
  13. use Symfony\Component\Security\Core\Authentication\AuthenticationManagerInterface;
  14. use Symfony\Component\Security\Core\Authentication\Token\NullToken;
  15. use Symfony\Component\Security\Core\Authentication\Token\Storage\TokenStorageInterface;
  16. use Symfony\Component\Security\Core\Authorization\AccessDecisionManagerInterface;
  17. use Symfony\Component\Security\Core\Authorization\Voter\AuthenticatedVoter;
  18. use Symfony\Component\Security\Core\Exception\AccessDeniedException;
  19. use Symfony\Component\Security\Core\Exception\AuthenticationCredentialsNotFoundException;
  20. use Symfony\Component\Security\Http\AccessMapInterface;
  21. use Symfony\Component\Security\Http\Authentication\NoopAuthenticationManager;
  22. use Symfony\Component\Security\Http\Event\LazyResponseEvent;
  23. /**
  24.  * AccessListener enforces access control rules.
  25.  *
  26.  * @author Fabien Potencier <fabien@symfony.com>
  27.  *
  28.  * @final
  29.  */
  30. class AccessListener extends AbstractListener
  31. {
  32.     private $tokenStorage;
  33.     private $accessDecisionManager;
  34.     private $map;
  35.     private $authManager;
  36.     private $exceptionOnNoToken;
  37.     public function __construct(TokenStorageInterface $tokenStorageAccessDecisionManagerInterface $accessDecisionManagerAccessMapInterface $map/* bool */ $exceptionOnNoToken true)
  38.     {
  39.         if ($exceptionOnNoToken instanceof AuthenticationManagerInterface) {
  40.             trigger_deprecation('symfony/security-http''5.4''The $authManager argument of "%s" is deprecated.'__METHOD__);
  41.             $authManager $exceptionOnNoToken;
  42.             $exceptionOnNoToken = \func_num_args() > func_get_arg(4) : true;
  43.         }
  44.         if (false !== $exceptionOnNoToken) {
  45.             trigger_deprecation('symfony/security-http''5.4''Not setting the $exceptionOnNoToken argument of "%s" to "false" is deprecated.'__METHOD__);
  46.         }
  47.         $this->tokenStorage $tokenStorage;
  48.         $this->accessDecisionManager $accessDecisionManager;
  49.         $this->map $map;
  50.         $this->authManager $authManager ?? (class_exists(AuthenticationManagerInterface::class) ? new NoopAuthenticationManager() : null);
  51.         $this->exceptionOnNoToken $exceptionOnNoToken;
  52.     }
  53.     /**
  54.      * {@inheritdoc}
  55.      */
  56.     public function supports(Request $request): ?bool
  57.     {
  58.         [$attributes] = $this->map->getPatterns($request);
  59.         $request->attributes->set('_access_control_attributes'$attributes);
  60.         if ($attributes && (
  61.             (\defined(AuthenticatedVoter::class.'::IS_AUTHENTICATED_ANONYMOUSLY') ? [AuthenticatedVoter::IS_AUTHENTICATED_ANONYMOUSLY] !== $attributes true)
  62.             && [AuthenticatedVoter::PUBLIC_ACCESS] !== $attributes
  63.         )) {
  64.             return true;
  65.         }
  66.         return null;
  67.     }
  68.     /**
  69.      * Handles access authorization.
  70.      *
  71.      * @throws AccessDeniedException
  72.      * @throws AuthenticationCredentialsNotFoundException when the token storage has no authentication token and $exceptionOnNoToken is set to true
  73.      */
  74.     public function authenticate(RequestEvent $event)
  75.     {
  76.         if (!$event instanceof LazyResponseEvent && null === ($token $this->tokenStorage->getToken()) && $this->exceptionOnNoToken) {
  77.             throw new AuthenticationCredentialsNotFoundException('A Token was not found in the TokenStorage.');
  78.         }
  79.         $request $event->getRequest();
  80.         $attributes $request->attributes->get('_access_control_attributes');
  81.         $request->attributes->remove('_access_control_attributes');
  82.         if (!$attributes || ((
  83.             (\defined(AuthenticatedVoter::class.'::IS_AUTHENTICATED_ANONYMOUSLY') ? [AuthenticatedVoter::IS_AUTHENTICATED_ANONYMOUSLY] === $attributes false)
  84.             || [AuthenticatedVoter::PUBLIC_ACCESS] === $attributes
  85.         ) && $event instanceof LazyResponseEvent)) {
  86.             return;
  87.         }
  88.         if ($event instanceof LazyResponseEvent) {
  89.             $token $this->tokenStorage->getToken();
  90.         }
  91.         if (null === $token) {
  92.             if ($this->exceptionOnNoToken) {
  93.                 throw new AuthenticationCredentialsNotFoundException('A Token was not found in the TokenStorage.');
  94.             }
  95.             $token = new NullToken();
  96.         }
  97.         // @deprecated since Symfony 5.4
  98.         if (method_exists($token'isAuthenticated') && !$token->isAuthenticated(false)) {
  99.             trigger_deprecation('symfony/core''5.4''Returning false from "%s()" is deprecated, return null from "getUser()" instead.');
  100.             if ($this->authManager) {
  101.                 $token $this->authManager->authenticate($token);
  102.                 $this->tokenStorage->setToken($token);
  103.             }
  104.         }
  105.         if (!$this->accessDecisionManager->decide($token$attributes$requesttrue)) {
  106.             throw $this->createAccessDeniedException($request$attributes);
  107.         }
  108.     }
  109.     private function createAccessDeniedException(Request $request, array $attributes)
  110.     {
  111.         $exception = new AccessDeniedException();
  112.         $exception->setAttributes($attributes);
  113.         $exception->setSubject($request);
  114.         return $exception;
  115.     }
  116.     public static function getPriority(): int
  117.     {
  118.         return -255;
  119.     }
  120. }