twig implementation

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

@@ -0,0 +1,63 @@
+<?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\SecurityContextInterface;
+
+/**
+ * SecurityExtension exposes security context features.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class SecurityExtension extends \Twig_Extension
+{
+    private $context;
+
+    public function __construct(SecurityContextInterface $context = null)
+    {
+        $this->context = $context;
+    }
+
+    public function isGranted($role, $object = null, $field = null)
+    {
+        if (null === $this->context) {
+            return false;
+        }
+
+        if (null !== $field) {
+            $object = new FieldVote($object, $field);
+        }
+
+        return $this->context->isGranted($role, $object);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getFunctions()
+    {
+        return array(
+            'is_granted' => new \Twig_Function_Method($this, 'isGranted'),
+        );
+    }
+
+    /**
+     * Returns the name of the extension.
+     *
+     * @return string The extension name
+     */
+    public function getName()
+    {
+        return 'security';
+    }
+}