<?php /** * CodeIgniter * * An open source application development framework for PHP * * This content is released under the MIT License (MIT) * * Copyright (c) 2014 - 2015, British Columbia Institute of Technology * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. * * @package CodeIgniter * @author EllisLab Dev Team * @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (http://ellislab.com/) * @copyright Copyright (c) 2014 - 2015, British Columbia Institute of Technology (http://bcit.ca/) * @license http://opensource.org/licenses/MIT MIT License * @link http://codeigniter.com * @since Version 3.0.0 * @filesource */ defined('BASEPATH') OR exit('No direct script access allowed'); /** * CodeIgniter Session Driver Class * * @package CodeIgniter * @subpackage Libraries * @category Sessions * @author Andrey Andreev * @link http://codeigniter.com/user_guide/libraries/sessions.html */ abstract class CI_Session_driver implements SessionHandlerInterface { protected $_config; /** * Data fingerprint * * @var bool */ protected $_fingerprint; /** * Lock placeholder * * @var mixed */ protected $_lock = FALSE; /** * Read session ID * * Used to detect session_regenerate_id() calls because PHP only calls * write() after regenerating the ID. * * @var string */ protected $_session_id; // ------------------------------------------------------------------------ /** * Class constructor * * @param array $params Configuration parameters * @return void */ public function __construct(&$params) { $this->_config =& $params; } // ------------------------------------------------------------------------ /** * Cookie destroy * * Internal method to force removal of a cookie by the client * when session_destroy() is called. * * @return bool */ protected function _cookie_destroy() { return setcookie( $this->_config['cookie_name'], NULL, 1, $this->_config['cookie_path'], $this->_config['cookie_domain'], $this->_config['cookie_secure'], TRUE ); } // ------------------------------------------------------------------------ /** * Get lock * * A dummy method allowing drivers with no locking functionality * (databases other than PostgreSQL and MySQL) to act as if they * do acquire a lock. * * @param string $session_id * @return bool */ protected function _get_lock($session_id) { $this->_lock = TRUE; return TRUE; } // ------------------------------------------------------------------------ /** * Release lock * * @return bool */ protected function _release_lock() { if ($this->_lock) { $this->_lock = FALSE; } return TRUE; } }