<?php /** * Cache Session save handler. Allows saving session information into Cache. * * PHP 5 * * CakePHP(tm) : Rapid Development Framework (http://cakephp.org) * Copyright 2005-2010, Cake Software Foundation, Inc. (http://cakefoundation.org) * * Licensed under The MIT License * Redistributions of files must retain the above copyright notice. * * @copyright Copyright 2005-2010, Cake Software Foundation, Inc. (http://cakefoundation.org) * @link http://cakephp.org CakePHP(tm) Project * @package cake.libs * @since CakePHP(tm) v 2.0 * @license MIT License (http://www.opensource.org/licenses/mit-license.php) */ /** * CacheSession provides method for saving sessions into a Cache engine. Used with CakeSession * * @package cake.libs.session * @see CakeSession for configuration information. */ class CacheSession implements CakeSessionHandlerInterface { /** * Method called on open of a database session. * * @return boolean Success * @access private */ public function open() { return true; } /** * Method called on close of a database session. * * @return boolean Success * @access private */ public function close() { $probability = mt_rand(1, 150); if ($probability <= 3) { Cache::gc(); } return true; } /** * Method used to read from a database session. * * @param mixed $id The key of the value to read * @return mixed The value of the key or false if it does not exist * @access private */ public function read($id) { return Cache::read($id, Configure::read('Session.handler.config')); } /** * Helper function called on write for database sessions. * * @param integer $id ID that uniquely identifies session in database * @param mixed $data The value of the data to be saved. * @return boolean True for successful write, false otherwise. * @access private */ public function write($id, $data) { return Cache::write($id, $data, Configure::read('Session.handler.config')); } /** * Method called on the destruction of a database session. * * @param integer $id ID that uniquely identifies session in database * @return boolean True for successful delete, false otherwise. * @access private */ public function destroy($id) { return Cache::delete($id, Configure::read('Session.handler.config')); } /** * Helper function called on gc for database sessions. * * @param integer $expires Timestamp (defaults to current time) * @return boolean Success * @access private */ public function gc($expires = null) { return Cache::gc(); } }