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<?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\Bridge\Twig\Extension;
use Symfony\Component\Security\Acl\Voter\FieldVote;
use Symfony\Component\Security\Core\Authorization\AuthorizationCheckerInterface;
use Symfony\Component\Security\Core\Exception\AuthenticationCredentialsNotFoundException;
use Twig\Extension\AbstractExtension;
use Twig\TwigFunction;
/**
* SecurityExtension exposes security context features.
*
* @author Fabien Potencier <fabien@symfony.com>
*
* @final since Symfony 4.4
*/
class SecurityExtension extends AbstractExtension
{
private $securityChecker;
public function __construct(AuthorizationCheckerInterface $securityChecker = null)
{
$this->securityChecker = $securityChecker;
}
public function isGranted($role, $object = null, $field = null)
{
if (null === $this->securityChecker) {
return false;
}
if (null !== $field) {
$object = new FieldVote($object, $field);
}
try {
return $this->securityChecker->isGranted($role, $object);
} catch (AuthenticationCredentialsNotFoundException $e) {
return false;
}
}
/**
* {@inheritdoc}
*
* @return TwigFunction[]
*/
public function getFunctions()
{
return [
new TwigFunction('is_granted', [$this, 'isGranted']),
];
}
/**
* {@inheritdoc}
*/
public function getName()
{
return 'security';
}
}