name : SecurityContext.php <?php /* * This file is part of the Symfony package. * * (c) Fabien Potencier <fabien@symfony.com> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace Symfony\Component\Security\Core; use Symfony\Component\Security\Core\Exception\AuthenticationCredentialsNotFoundException; use Symfony\Component\Security\Core\Authorization\AccessDecisionManagerInterface; use Symfony\Component\Security\Core\Authentication\AuthenticationManagerInterface; use Symfony\Component\Security\Core\Authentication\Token\TokenInterface; /** * SecurityContext is the main entry point of the Security component. * * It gives access to the token representing the current user authentication. * * @author Fabien Potencier <fabien@symfony.com> * @author Johannes M. Schmitt <schmittjoh@gmail.com> */ class SecurityContext implements SecurityContextInterface { private $token; private $accessDecisionManager; private $authenticationManager; private $alwaysAuthenticate; /** * Constructor. * * @param AuthenticationManagerInterface $authenticationManager An AuthenticationManager instance * @param AccessDecisionManagerInterface|null $accessDecisionManager An AccessDecisionManager instance * @param Boolean $alwaysAuthenticate */ public function __construct(AuthenticationManagerInterface $authenticationManager, AccessDecisionManagerInterface $accessDecisionManager, $alwaysAuthenticate = false) { $this->authenticationManager = $authenticationManager; $this->accessDecisionManager = $accessDecisionManager; $this->alwaysAuthenticate = $alwaysAuthenticate; } /** * {@inheritdoc} * * @throws AuthenticationCredentialsNotFoundException when the security context has no authentication token. */ final public function isGranted($attributes, $object = null) { if (null === $this->token) { throw new AuthenticationCredentialsNotFoundException('The security context contains no authentication token. One possible reason may be that there is no firewall configured for this URL.'); } if ($this->alwaysAuthenticate || !$this->token->isAuthenticated()) { $this->token = $this->authenticationManager->authenticate($this->token); } if (!is_array($attributes)) { $attributes = array($attributes); } return $this->accessDecisionManager->decide($this->token, $attributes, $object); } /** * {@inheritdoc} */ public function getToken() { return $this->token; } /** * {@inheritdoc} */ public function setToken(TokenInterface $token = null) { $this->token = $token; } }