vendor/symfony/security-core/Authorization/Strategy/AffirmativeStrategy.php line 43

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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\Strategy;
  14. use Symfony\Component\Security\Core\Authorization\Voter\VoterInterface;
  16. /**
  17. * Grants access if any voter returns an affirmative response.
  18. *
  19. * If all voters abstained from voting, the decision will be based on the
  20. * allowIfAllAbstainDecisions property value (defaults to false).
  21. *
  22. * @author Fabien Potencier <fabien@symfony.com>
  23. * @author Alexander M. Turek <me@derrabus.de>
  24. */
  25. final class AffirmativeStrategy implements AccessDecisionStrategyInterface, \Stringable
  26. {
  27. /**
  28. * @var bool
  29. */
  30. private $allowIfAllAbstainDecisions;
  32. public function __construct(bool $allowIfAllAbstainDecisions = false)
  33. {
  34. $this->allowIfAllAbstainDecisions = $allowIfAllAbstainDecisions;
  35. }
  37. /**
  38. * {@inheritdoc}
  39. */
  40. public function decide(\Traversable $results): bool
  41. {
  42. $deny = 0;
  43. foreach ($results as $result) {
  44. if (VoterInterface::ACCESS_GRANTED === $result) {
  45. return true;
  46. }
  48. if (VoterInterface::ACCESS_DENIED === $result) {
  49. ++$deny;
  50. }
  51. }
  53. if ($deny > 0) {
  54. return false;
  55. }
  57. return $this->allowIfAllAbstainDecisions;
  58. }
  60. public function __toString(): string
  61. {
  62. return 'affirmative';
  63. }
  64. }