sessiongc.php
1.71 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
<?php
/**
* @package Joomla.Plugin
* @subpackage System.sessiongc
*
* @copyright Copyright (C) 2005 - 2019 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE.txt
*/
defined('_JEXEC') or die;
use Joomla\CMS\Application\CMSApplication;
use Joomla\CMS\Factory;
use Joomla\CMS\Plugin\CMSPlugin;
use Joomla\CMS\Session\MetadataManager;
/**
* Garbage collection handler for session related data
*
* @since 3.8.6
*/
class PlgSystemSessionGc extends CMSPlugin
{
/**
* Application object
*
* @var CMSApplication
* @since 3.8.6
*/
protected $app;
/**
* Database driver
*
* @var JDatabaseDriver
* @since 3.8.6
*/
protected $db;
/**
* Runs after the HTTP response has been sent to the client and performs garbage collection tasks
*
* @return void
*
* @since 3.8.6
*/
public function onAfterRespond()
{
$session = Factory::getSession();
if ($this->params->get('enable_session_gc', 1))
{
$probability = $this->params->get('gc_probability', 1);
$divisor = $this->params->get('gc_divisor', 100);
$random = $divisor * lcg_value();
if ($probability > 0 && $random < $probability)
{
$session->gc();
}
}
if ($this->app->get('session_handler', 'none') !== 'database' && $this->params->get('enable_session_metadata_gc', 1))
{
$probability = $this->params->get('gc_probability', 1);
$divisor = $this->params->get('gc_divisor', 100);
$random = $divisor * lcg_value();
if ($probability > 0 && $random < $probability)
{
$metadataManager = new MetadataManager($this->app, $this->db);
$metadataManager->deletePriorTo(time() - $session->getExpire());
}
}
}
}