<?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\Workflow\EventListener;

use Symfony\Component\Security\Core\Authentication\AuthenticationTrustResolverInterface;
use Symfony\Component\Security\Core\Authentication\Token\Storage\TokenStorageInterface;
use Symfony\Component\Security\Core\Authorization\AuthorizationCheckerInterface;
use Symfony\Component\Security\Core\Role\RoleHierarchyInterface;
use Symfony\Component\Validator\Validator\ValidatorInterface;
use Symfony\Component\Workflow\Event\GuardEvent;
use Symfony\Component\Workflow\Exception\InvalidTokenConfigurationException;

/**
 * @author Grégoire Pineau <lyrixx@lyrixx.info>
 */
class GuardListener
{
    private $configuration;
    private $expressionLanguage;
    private $tokenStorage;
    private $authenticationChecker;
    private $trustResolver;
    private $roleHierarchy;
    private $validator;

    public function __construct($configuration, ExpressionLanguage $expressionLanguage, TokenStorageInterface $tokenStorage, AuthorizationCheckerInterface $authenticationChecker, AuthenticationTrustResolverInterface $trustResolver, RoleHierarchyInterface $roleHierarchy = null, ValidatorInterface $validator = null)
    {
        $this->configuration = $configuration;
        $this->expressionLanguage = $expressionLanguage;
        $this->tokenStorage = $tokenStorage;
        $this->authenticationChecker = $authenticationChecker;
        $this->trustResolver = $trustResolver;
        $this->roleHierarchy = $roleHierarchy;
        $this->validator = $validator;
    }

    public function onTransition(GuardEvent $event, $eventName)
    {
        if (!isset($this->configuration[$eventName])) {
            return;
        }

        if (!$this->expressionLanguage->evaluate($this->configuration[$eventName], $this->getVariables($event))) {
            $event->setBlocked(true);
        }
    }

    // code should be sync with Symfony\Component\Security\Core\Authorization\Voter\ExpressionVoter
    private function getVariables(GuardEvent $event)
    {
        $token = $this->tokenStorage->getToken();

        if (null === $token) {
            throw new InvalidTokenConfigurationException(sprintf('There are no tokens available for workflow %s.', $event->getWorkflowName()));
        }

        if (null !== $this->roleHierarchy) {
            $roles = $this->roleHierarchy->getReachableRoles($token->getRoles());
        } else {
            $roles = $token->getRoles();
        }

        $variables = array(
            'token' => $token,
            'user' => $token->getUser(),
            'subject' => $event->getSubject(),
            'roles' => array_map(function ($role) {
                return $role->getRole();
            }, $roles),
            // needed for the is_granted expression function
            'auth_checker' => $this->authenticationChecker,
            // needed for the is_* expression function
            'trust_resolver' => $this->trustResolver,
            // needed for the is_valid expression function
            'validator' => $this->validator,
        );

        return $variables;
    }
}
__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----MTk0MDQ5MzEwNjg3NzU2MSA0MTMyOTg1NzUwODMwNzc4IDI4NTYyODU4NTY1NTEzOTE=