vendor/api-platform/core/src/Symfony/Security/ResourceAccessChecker.php line 49

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  1. <?php
  3. /*
  4.  * This file is part of the API Platform project.
  5.  *
  6.  * (c) Kévin Dunglas <[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. declare(strict_types=1);
  14. namespace ApiPlatform\Symfony\Security;
  16. use Symfony\Component\ExpressionLanguage\ExpressionLanguage;
  17. use Symfony\Component\Security\Core\Authentication\AuthenticationTrustResolverInterface;
  18. use Symfony\Component\Security\Core\Authentication\Token\NullToken;
  19. use Symfony\Component\Security\Core\Authentication\Token\Storage\TokenStorageInterface;
  20. use Symfony\Component\Security\Core\Authentication\Token\TokenInterface;
  21. use Symfony\Component\Security\Core\Authorization\AuthorizationCheckerInterface;
  22. use Symfony\Component\Security\Core\Role\Role;
  23. use Symfony\Component\Security\Core\Role\RoleHierarchyInterface;
  25. /**
  26.  * Checks if the logged user has sufficient permissions to access the given resource.
  27.  *
  28.  * @author Kévin Dunglas <[email protected]>
  29.  */
  30. final class ResourceAccessChecker implements ResourceAccessCheckerInterface
  31. {
  32.     private $expressionLanguage;
  33.     private $authenticationTrustResolver;
  34.     private $roleHierarchy;
  35.     private $tokenStorage;
  36.     private $authorizationChecker;
  37.     private $exceptionOnNoToken;
  39.     public function __construct(ExpressionLanguage $expressionLanguage = null, AuthenticationTrustResolverInterface $authenticationTrustResolver = null, RoleHierarchyInterface $roleHierarchy = null, TokenStorageInterface $tokenStorage = null, AuthorizationCheckerInterface $authorizationChecker = null, bool $exceptionOnNoToken = true)
  40.     {
  41.         $this->expressionLanguage = $expressionLanguage;
  42.         $this->authenticationTrustResolver = $authenticationTrustResolver;
  43.         $this->roleHierarchy = $roleHierarchy;
  44.         $this->tokenStorage = $tokenStorage;
  45.         $this->authorizationChecker = $authorizationChecker;
  47.         if (5 < \func_num_args()) {
  48.             $this->exceptionOnNoToken = $exceptionOnNoToken;
  49.             trigger_deprecation('api-platform/core', '2.7', 'The $exceptionOnNoToken parameter in "%s()" is deprecated and will always be false in 3.0, you should stop using it.', __METHOD__);
  50.         }
  51.     }
  53.     public function isGranted(string $resourceClass, string $expression, array $extraVariables = []): bool
  54.     {
  55.         if (null === $this->tokenStorage || null === $this->authenticationTrustResolver) {
  56.             throw new \LogicException('The "symfony/security" library must be installed to use the "security" attribute.');
  57.         }
  58.         if (null === $token = $this->tokenStorage->getToken()) {
  59.             if ($this->exceptionOnNoToken) {
  60.                 throw new \LogicException('The current token must be set to use the "security" attribute (is the URL behind a firewall?).');
  61.             }
  63.             if (class_exists(NullToken::class)) {
  64.                 $token = new NullToken();
  65.             }
  66.         }
  67.         if (null === $this->expressionLanguage) {
  68.             throw new \LogicException('The "symfony/expression-language" library must be installed to use the "security" attribute.');
  69.         }
  71.         $variables = array_merge($extraVariables, [
  72.             'trust_resolver' => $this->authenticationTrustResolver,
  73.             'auth_checker' => $this->authorizationChecker, // needed for the is_granted expression function
  74.         ]);
  76.         if ($token) {
  77.             $variables = array_merge($variables, $this->getVariables($token));
  78.         }
  80.         return (bool) $this->expressionLanguage->evaluate($expression, $variables);
  81.     }
  83.     /**
  84.      * @copyright Fabien Potencier <[email protected]>
  85.      *
  86.      * @see https://github.com/symfony/symfony/blob/master/src/Symfony/Component/Security/Core/Authorization/Voter/ExpressionVoter.php
  87.      */
  88.     private function getVariables(TokenInterface $token): array
  89.     {
  90.         return [
  91.             'token' => $token,
  92.             'user' => $token->getUser(),
  93.             'roles' => $this->getEffectiveRoles($token),
  94.         ];
  95.     }
  97.     /**
  98.      * @return string[]
  99.      */
  100.     private function getEffectiveRoles(TokenInterface $token): array
  101.     {
  102.         if (null === $this->roleHierarchy) {
  103.             return method_exists($token, 'getRoleNames') ? $token->getRoleNames() : array_map('strval', $token->getRoles()); // @phpstan-ignore-line
  104.         }
  106.         if (method_exists($this->roleHierarchy, 'getReachableRoleNames')) {
  107.             return $this->roleHierarchy->getReachableRoleNames($token->getRoleNames());
  108.         }
  110.         return array_map(static function (Role $role): string {
  111.             return $role->getRole(); // @phpstan-ignore-line
  112.         }, $this->roleHierarchy->getReachableRoles($token->getRoles())); // @phpstan-ignore-line
  113.     }
  114. }
  116. class_alias(ResourceAccessChecker::class, \ApiPlatform\Core\Security\ResourceAccessChecker::class);