--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vendor/bundles/JMS/SecurityExtraBundle/Security/Authorization/RunAsManager.php	Sat Sep 24 15:40:41 2011 +0200
@@ -0,0 +1,79 @@
+<?php
+
+/*
+ * Copyright 2010 Johannes M. Schmitt <schmittjoh@gmail.com>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+namespace JMS\SecurityExtraBundle\Security\Authorization;
+
+use JMS\SecurityExtraBundle\Security\Authentication\Token\RunAsUserToken;
+use Symfony\Component\Security\Core\Role\Role;
+use Symfony\Component\Security\Core\Authentication\Token\TokenInterface;
+
+/**
+ * The RunAsManager creates throw-away Tokens which are temporarily injected into
+ * the security context for the duration of the invocation of a specific method.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+class RunAsManager implements RunAsManagerInterface
+{
+    private $key;
+    private $rolePrefix;
+
+    public function __construct($key, $rolePrefix = 'ROLE_')
+    {
+        $this->key = $key;
+        $this->rolePrefix = $rolePrefix;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function buildRunAs(TokenInterface $token, $secureObject, array $attributes)
+    {
+        $roles = array();
+        foreach ($attributes as $attribute)
+        {
+            if ($this->supportsAttribute($attribute)) {
+                $roles[] = new Role($attribute);
+            }
+        }
+
+        if (0 === count($roles)) {
+            return null;
+        }
+
+        $roles = array_merge($roles, $token->getRoles());
+
+        return new RunAsUserToken($this->key, $token->getUser(), $token->getCredentials(), $roles, $token);
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function supportsAttribute($attribute)
+    {
+        return !empty($attribute) && 0 === strpos($attribute, $this->rolePrefix);
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function supportsClass($className)
+    {
+        return true;
+    }
+}
\ No newline at end of file