Add authorization strategy for WAMP topics

lib/Alchemy/Phrasea/Websocket/Consumer/ConsumerManager.php

@@ -0,0 +1,32 @@
+<?php
+
+/*
+ * This file is part of Phraseanet
+ *
+ * (c) 2005-2014 Alchemy
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Alchemy\Phrasea\Websocket\Consumer;
+
+use Symfony\Component\HttpFoundation\Session\SessionInterface;
+
+class ConsumerManager
+{
+    /**
+     * Creates a consumer given a Session
+     *
+     * @param Session $session
+     *
+     * @return Consumer
+     */
+    public function create(SessionInterface $session)
+    {
+        $usrId = $session->has('usr_id') ? $session->get('usr_id') : null;
+        $rights = $session->has('websockets_rights') ? $session->get('websockets_rights') : [];
+
+        return new Consumer($usrId, $rights);;
+    }
+}