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<?php
/**
* CodeIgniter
*
* An open source application development framework for PHP 5.2.4 or newer
*
* NOTICE OF LICENSE
*
* Licensed under the Open Software License version 3.0
*
* This source file is subject to the Open Software License (OSL 3.0) that is
* bundled with this package in the files license.txt / license.rst. It is
* also available through the world wide web at this URL:
* http://opensource.org/licenses/OSL-3.0
* If you did not receive a copy of the license and are unable to obtain it
* through the world wide web, please send an email to
* licensing@ellislab.com so we can send you a copy immediately.
*
* @package CodeIgniter
* @author EllisLab Dev Team
* @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (http://ellislab.com/)
* @license http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
* @link http://codeigniter.com
* @since Version 3.0
* @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 {
// WARNING! Setting default values to properties will
// prevent using the configuration file values.
/**
* Expiration time
*
* @var int
*/
protected $_expiration;
/**
* Cookie name
*
* @var string
*/
protected $_cookie_name;
/**
* Cookie domain
*
* @var string
*/
protected $_cookie_domain;
/**
* Cookie path
*
* @var string
*/
protected $_cookie_path;
/**
* Cookie secure flag
*
* @var bool
*/
protected $_cookie_secure;
/**
* Cookie HTTP-only flag
*
* @var bool
*/
protected $_cookie_httponly;
/**
* Match IP addresses flag
*
* @var bool
*/
protected $_match_ip;
/**
* Data dash
*
* @var bool
*/
protected $_fingerprint;
// ------------------------------------------------------------------------
/**
* Class constructor
*
* @param array $params Configuration parameters
* @return void
*/
public function __construct($params)
{
foreach ($params as $key => &$value)
{
$key = (strncmp($key, 'sess_', 5) === 0)
? substr($key, 4)
: '_'.$key;
property_exists($this, $key) && $this->$key = $value;
}
isset($this->_expiration) OR $this->_expiration = (int) config_item('sess_expiration');
isset($this->_cookie_name) OR $this->_cookie_name = config_item('sess_cookie_name');
isset($this->_cookie_domain) OR $this->_cookie_domain = config_item('cookie_domain');
isset($this->_cookie_path) OR $this->_cookie_path = config_item('cookie_path');
isset($this->_cookie_secure) OR $this->_cookie_secure = config_item('cookie_secure');
isset($this->_cookie_httponly) OR $this->_cookie_httponly = config_item('cookie_httponly');
isset($this->_match_ip) OR $this->_match_ip = config_item('sess_match_ip');
// Pass our configuration to php.ini, when appropriate
ini_set('session.name', $this->_cookie_name);
isset($this->_cookie_domain) && ini_set('session.cookie_domain', $this->_cookie_domain);
isset($this->_cookie_path) && ini_set('session.cookie_path', $this->_cookie_path);
isset($this->_cookie_secure) && ini_set('session.cookie_secure', $this->_cookie_secure);
isset($this->_cookie_httponly) && ini_set('session.cookie_httponly', $this->_cookie_httponly);
if ($this->_expiration)
{
ini_set('session.gc_maxlifetime', $this->_expiration);
}
// Security is king
ini_set('session.use_trans_id', 0);
ini_set('session.use_strict_mode', 1);
ini_set('session.use_cookies', 1);
ini_set('session.use_only_cookies', 1);
ini_set('session.hash_function', 1);
ini_set('session.hash_bits_per_character', 4);
// Work-around for PHP bug #66827 (https://bugs.php.net/bug.php?id=66827)
//
// The session ID sanitizer doesn't check for the value type and blindly does
// an implicit cast to string, which triggers an 'Array to string' E_NOTICE.
if (isset($_COOKIE[$this->_cookie_name]) && ! is_string($_COOKIE[$this->_cookie_name]))
{
unset($_COOKIE[$this->_cookie_name]);
}
/*
Need to test if this is necessary for a custom driver or if it's only
relevant to PHP's own files handler.
https://bugs.php.net/bug.php?id=65475
do this after session is started:
if (is_php('5.5.2') && ! is_php('5.5.4'))
{
$session_id = session_id();
if ($_COOKIE[$this->_cookie_name] !== $session_id && file_exists(teh file))
{
unlink(<teh file>);
}
setcookie(
$this->_cookie_name,
$session_id,
$this->_expiration
? time() + $this->_expiration
: 0,
$this->_cookie_path,
$this->_cookie_domain,
$this->_cookie_secure,
$this->_cookie_httponly
);
}
*/
}
// ------------------------------------------------------------------------
protected function _cookie_destroy()
{
return setcookie(
$this->_cookie_name,
NULL,
1,
$this->_cookie_path,
$this->_cookie_domain,
$this->_cookie_secure,
$this->_cookie_httponly
);
}
}
/* End of file Session_driver.php */
/* Location: ./system/libraries/Session/Session_driver.php */
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