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libraries/joomla/session/storage/xcache.php

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+<?php
+/**
+ * @package     Joomla.Platform
+ * @subpackage  Session
+ *
+ * @copyright   Copyright (C) 2005 - 2013 Open Source Matters, Inc. All rights reserved.
+ * @license     GNU General Public License version 2 or later; see LICENSE
+ */
+
+defined('JPATH_PLATFORM') or die;
+
+/**
+ * XCache session storage handler
+ *
+ * @package     Joomla.Platform
+ * @subpackage  Session
+ * @since       11.1
+ */
+class JSessionStorageXcache extends JSessionStorage
+{
+	/**
+	 * Constructor
+	 *
+	 * @param   array  $options  Optional parameters.
+	 *
+	 * @since   11.1
+	 * @throws  RuntimeException
+	 */
+	public function __construct($options = array())
+	{
+		if (!self::isSupported())
+		{
+			throw new RuntimeException('XCache Extension is not available', 404);
+		}
+
+		parent::__construct($options);
+	}
+
+	/**
+	 * Read the data for a particular session identifier from the SessionHandler backend.
+	 *
+	 * @param   string  $id  The session identifier.
+	 *
+	 * @return  string  The session data.
+	 *
+	 * @since   11.1
+	 */
+	public function read($id)
+	{
+		$sess_id = 'sess_' . $id;
+
+		// Check if id exists
+		if (!xcache_isset($sess_id))
+		{
+			return;
+		}
+
+		return (string) xcache_get($sess_id);
+	}
+
+	/**
+	 * Write session data to the SessionHandler backend.
+	 *
+	 * @param   string  $id            The session identifier.
+	 * @param   string  $session_data  The session data.
+	 *
+	 * @return  boolean  True on success, false otherwise.
+	 *
+	 * @since   11.1
+	 */
+	public function write($id, $session_data)
+	{
+		$sess_id = 'sess_' . $id;
+		return xcache_set($sess_id, $session_data, ini_get("session.gc_maxlifetime"));
+	}
+
+	/**
+	 * Destroy the data for a particular session identifier in the SessionHandler backend.
+	 *
+	 * @param   string  $id  The session identifier.
+	 *
+	 * @return  boolean  True on success, false otherwise.
+	 *
+	 * @since   11.1
+	 */
+	public function destroy($id)
+	{
+		$sess_id = 'sess_' . $id;
+
+		if (!xcache_isset($sess_id))
+		{
+			return true;
+		}
+
+		return xcache_unset($sess_id);
+	}
+
+	/**
+	 * Test to see if the SessionHandler is available.
+	 *
+	 * @return boolean  True on success, false otherwise.
+	 *
+	 * @since   12.1
+	 */
+	static public function isSupported()
+	{
+		return (extension_loaded('xcache'));
+	}
+}