vendor/symfony/twig-bridge/Symfony/Bridge/Twig/Extension/SecurityExtension.php

   1 <?php
   2
   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  */
  11
  12 namespace Symfony\Bridge\Twig\Extension;
  13
  14 use Symfony\Component\Security\Acl\Voter\FieldVote;
  15 use Symfony\Component\Security\Core\SecurityContextInterface;
  16
  17 /**
  18  * SecurityExtension exposes security context features.
  19  *
  20  * @author Fabien Potencier <fabien@symfony.com>
  21  */
  22 class SecurityExtension extends \Twig_Extension
  23 {
  24     private $context;
  25
  26     public function __construct(SecurityContextInterface $context = null)
  27     {
  28         $this->context = $context;
  29     }
  30
  31     public function isGranted($role, $object = null, $field = null)
  32     {
  33         if (null === $this->context) {
  34             return false;
  35         }
  36
  37         if (null !== $field) {
  38             $object = new FieldVote($object, $field);
  39         }
  40
  41         return $this->context->isGranted($role, $object);
  42     }
  43
  44     /**
  45      * {@inheritdoc}
  46      */
  47     public function getFunctions()
  48     {
  49         return array(
  50             'is_granted' => new \Twig_Function_Method($this, 'isGranted'),
  51         );
  52     }
  53
  54     /**
  55      * Returns the name of the extension.
  56      *
  57      * @return string The extension name
  58      */
  59     public function getName()
  60     {
  61         return 'security';
  62     }
  63 }