126 lines
3.8 KiB
PHP
126 lines
3.8 KiB
PHP
<?php
|
|
|
|
/**
|
|
* Session Handling for PICKLES
|
|
*
|
|
* PHP version 5
|
|
*
|
|
* Licensed under The MIT License
|
|
* Redistribution of these files must retain the above copyright notice.
|
|
*
|
|
* @author Joshua Sherman <josh@gravityblvd.com>
|
|
* @copyright Copyright 2007-2014, Joshua Sherman
|
|
* @license http://www.opensource.org/licenses/mit-license.html
|
|
* @package PICKLES
|
|
* @link https://github.com/joshtronic/pickles
|
|
*/
|
|
|
|
/**
|
|
* Session Class
|
|
*
|
|
* Provides session handling via database instead of the file based session
|
|
* handling built into PHP. Using this class requires an array to be defined
|
|
* in place of the boolean true/false (on/off). If simply an empty array, the
|
|
* datasource will default to the value in $config['pickles']['datasource'] and
|
|
* if the table will default to "sessions". The format is as follows:
|
|
*/
|
|
class Session extends Object
|
|
{
|
|
/**
|
|
* Constructor
|
|
*
|
|
* All of our set up logic for the session in contained here. This class is
|
|
* initially instantiated from pickles.php. Non-file handlers need to be
|
|
* configured in the site's config. MySQL support was dropped in favor of
|
|
* in memory stores or simply relying on file based sessions. Why? Because
|
|
* using MySQL for sessions is very write intensive and having done it in
|
|
* the past I don't recommend it. If you run a single server, files are
|
|
* good enough if your volume is lower. Memcache[d] is fine if you don't
|
|
* mind logging all of your users off your site when you restart the
|
|
* service and/or you run out of memory for the process. Redis is the best
|
|
* choice as it can be configured to be persistent and lives in memory.
|
|
* This is assuming you don't just want to roll your own sessions, which is
|
|
* pretty damn easy as well.
|
|
*/
|
|
public function __construct()
|
|
{
|
|
if (isset($_SERVER['REQUEST_METHOD']))
|
|
{
|
|
parent::__construct();
|
|
|
|
// Sets up our configuration variables
|
|
if (isset($this->config->pickles['sessions']))
|
|
{
|
|
$session = $this->config->pickles['sessions'];
|
|
}
|
|
|
|
$datasources = $this->config->datasources;
|
|
$handler = 'files';
|
|
$datasource = false;
|
|
|
|
if (isset($session, $datasources[$session]))
|
|
{
|
|
$datasource = $datasources[$session];
|
|
$handler = $datasource['type'];
|
|
|
|
if ($handler != 'files')
|
|
{
|
|
if (isset($datasource['hostname'], $datasource['port']))
|
|
{
|
|
$host = ($handler != 'memcached' ? 'tcp://' : '')
|
|
. $datasource['hostname'] . ':' . $datasource['port'];
|
|
}
|
|
else
|
|
{
|
|
throw new Exception('You must provide both the hostname and port for the datasource.');
|
|
}
|
|
}
|
|
}
|
|
|
|
switch ($handler)
|
|
{
|
|
case 'memcache':
|
|
ini_set('session.save_handler', 'memcache');
|
|
ini_set('session.save_path', $host . '?persistent=1&weight=1&timeout=1&retry_interval=15');
|
|
break;
|
|
|
|
case 'memcached':
|
|
ini_set('session.save_handler', 'memcached');
|
|
ini_set('session.save_path', $host);
|
|
break;
|
|
|
|
case 'redis':
|
|
$save_path = $host . '?weight=1';
|
|
|
|
// Database ignored by phpredis when this was coded
|
|
if (isset($datasource['database']))
|
|
{
|
|
$save_path .= '&database=' . $datasource['database'];
|
|
}
|
|
|
|
if (isset($datasource['prefix']))
|
|
{
|
|
$save_path .= '&prefix=' . $datasource['prefix'];
|
|
}
|
|
|
|
ini_set('session.save_handler', 'redis');
|
|
ini_set('session.save_path', $save_path);
|
|
break;
|
|
|
|
case 'files':
|
|
ini_set('session.save_handler', 'files');
|
|
break;
|
|
}
|
|
|
|
// Don't start sessions for people without a user agent and bots.
|
|
if (isset($_SERVER['HTTP_USER_AGENT'])
|
|
&& !String::isEmpty($_SERVER['HTTP_USER_AGENT'])
|
|
&& !preg_match('/(Baidu|Gigabot|Googlebot|libwww-perl|lwp-trivial|msnbot|SiteUptime|Slurp|WordPress|ZIBB|ZyBorg)/i', $_SERVER['HTTP_USER_AGENT']))
|
|
{
|
|
session_start();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
?>
|