redis.php
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<?php
/**
* @package Joomla.Platform
* @subpackage Session
*
* @copyright Copyright (C) 2005 - 2019 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE
*/
defined('JPATH_PLATFORM') or die;
/**
* Redis session storage handler for PHP
*
* @link https://www.php.net/manual/en/function.session-set-save-handler.php
* @since 3.8.0
*/
class JSessionStorageRedis extends JSessionStorage
{
/**
* Constructor
*
* @param array $options Optional parameters.
*
* @since 3.8.0
*/
public function __construct($options = array())
{
if (!self::isSupported())
{
throw new RuntimeException('Redis Extension is not available', 404);
}
$config = JFactory::getConfig();
$this->_server = array(
'host' => $config->get('session_redis_server_host', 'localhost'),
'port' => $config->get('session_redis_server_port', 6379),
'persist' => $config->get('session_redis_persist', true),
'auth' => $config->get('session_redis_server_auth', null),
'db' => (int) $config->get('session_redis_server_db', 0),
);
// If you are trying to connect to a socket file, ignore the supplied port
if ($this->_server['host'][0] === '/')
{
$this->_server['port'] = 0;
}
parent::__construct($options);
}
/**
* Register the functions of this class with PHP's session handler
*
* @return void
*
* @since 3.8.0
*/
public function register()
{
if (!empty($this->_server) && isset($this->_server['host'], $this->_server['port']))
{
if (!headers_sent())
{
if ($this->_server['port'] === 0)
{
$path = 'unix://' . $this->_server['host'];
}
else
{
$path = 'tcp://' . $this->_server['host'] . ":" . $this->_server['port'];
}
$persist = isset($this->_server['persist']) ? $this->_server['persist'] : false;
$db = isset($this->_server['db']) ? $this->_server['db'] : 0;
$path .= '?persistent=' . (int) $persist . '&database=' . $db;
if (!empty($this->_server['auth']))
{
$path .= '&auth=' . $this->_server['auth'];
}
ini_set('session.save_path', $path);
ini_set('session.save_handler', 'redis');
}
// This is required if the configuration.php gzip is turned on
ini_set('zlib.output_compression', 'Off');
}
}
/**
* Test to see if the SessionHandler is available.
*
* @return boolean True on success, false otherwise.
*
* @since 3.8.0
*/
public static function isSupported()
{
return extension_loaded('redis') && class_exists('Redis');
}
}