vendor/symfony/security-core/Authorization/AuthorizationChecker.php line 35

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  1. <?php
  3. /*
  4. * This file is part of the Symfony package.
  5. *
  6. * (c) Fabien Potencier <fabien@symfony.com>
  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\Core\Authorization;
  14. use Symfony\Component\Security\Core\Authentication\AuthenticationManagerInterface;
  15. use Symfony\Component\Security\Core\Authentication\Token\NullToken;
  16. use Symfony\Component\Security\Core\Authentication\Token\Storage\TokenStorageInterface;
  17. use Symfony\Component\Security\Core\Exception\AuthenticationCredentialsNotFoundException;
  19. /**
  20. * AuthorizationChecker is the main authorization point of the Security component.
  21. *
  22. * It gives access to the token representing the current user authentication.
  23. *
  24. * @author Fabien Potencier <fabien@symfony.com>
  25. * @author Johannes M. Schmitt <schmittjoh@gmail.com>
  26. */
  27. class AuthorizationChecker implements AuthorizationCheckerInterface
  28. {
  29. private $tokenStorage;
  30. private $accessDecisionManager;
  31. private $authenticationManager;
  32. private $alwaysAuthenticate;
  33. private $exceptionOnNoToken;
  35. public function __construct(TokenStorageInterface $tokenStorage, /* AccessDecisionManagerInterface */ $accessDecisionManager, /* bool */ $alwaysAuthenticate = false, /* bool */ $exceptionOnNoToken = true)
  36. {
  37. if ($accessDecisionManager instanceof AuthenticationManagerInterface) {
  38. trigger_deprecation('symfony/security-core', '5.4', 'The $autenticationManager argument of "%s" is deprecated.', __METHOD__);
  40. $this->authenticationManager = $accessDecisionManager;
  41. $accessDecisionManager = $alwaysAuthenticate;
  42. $alwaysAuthenticate = $exceptionOnNoToken;
  43. $exceptionOnNoToken = \func_num_args() > 4 ? func_get_arg(4) : true;
  44. }
  46. if (false !== $alwaysAuthenticate) {
  47. trigger_deprecation('symfony/security-core', '5.4', 'Not setting the 4th argument of "%s" to "false" is deprecated.', __METHOD__);
  48. }
  49. if (false !== $exceptionOnNoToken) {
  50. trigger_deprecation('symfony/security-core', '5.4', 'Not setting the 5th argument of "%s" to "false" is deprecated.', __METHOD__);
  51. }
  53. if (!$accessDecisionManager instanceof AccessDecisionManagerInterface) {
  54. throw new \TypeError(sprintf('Argument 2 of "%s" must be instance of "%s", "%s" given.', __METHOD__, AccessDecisionManagerInterface::class, get_debug_type($accessDecisionManager)));
  55. }
  57. $this->tokenStorage = $tokenStorage;
  58. $this->accessDecisionManager = $accessDecisionManager;
  59. $this->alwaysAuthenticate = $alwaysAuthenticate;
  60. $this->exceptionOnNoToken = $exceptionOnNoToken;
  61. }
  63. /**
  64. * {@inheritdoc}
  65. *
  66. * @throws AuthenticationCredentialsNotFoundException when the token storage has no authentication token and $exceptionOnNoToken is set to true
  67. */
  68. final public function isGranted($attribute, $subject = null): bool
  69. {
  70. $token = $this->tokenStorage->getToken();
  72. if (!$token || !$token->getUser()) {
  73. if ($this->exceptionOnNoToken) {
  74. throw new AuthenticationCredentialsNotFoundException('The token storage contains no authentication token. One possible reason may be that there is no firewall configured for this URL.');
  75. }
  77. $token = new NullToken();
  78. } else {
  79. $authenticated = true;
  80. // @deprecated since Symfony 5.4
  81. if ($this->alwaysAuthenticate || !$authenticated = $token->isAuthenticated(false)) {
  82. if (!($authenticated ?? true)) {
  83. trigger_deprecation('symfony/core', '5.4', 'Returning false from "%s::isAuthenticated()" is deprecated, return null from "getUser()" instead.', get_debug_type($token));
  84. }
  85. $this->tokenStorage->setToken($token = $this->authenticationManager->authenticate($token));
  86. }
  87. }
  89. return $this->accessDecisionManager->decide($token, [$attribute], $subject);
  90. }
  91. }