joomla_test/plugins/system/cache/cache.php

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2020-01-02 22:20:31 +07:00
<?php
/**
* @package Joomla.Plugin
* @subpackage System.cache
*
* @copyright Copyright (C) 2005 - 2013 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE.txt
*/
defined('_JEXEC') or die;
/**
* Joomla! Page Cache Plugin
*
* @package Joomla.Plugin
* @subpackage System.cache
*/
class PlgSystemCache extends JPlugin
{
var $_cache = null;
var $_cache_key = null;
/**
* Constructor
*
* @access protected
* @param object $subject The object to observe
* @param array $config An array that holds the plugin configuration
* @since 1.0
*/
function __construct(& $subject, $config)
{
parent::__construct($subject, $config);
//Set the language in the class
$options = array(
'defaultgroup' => 'page',
'browsercache' => $this->params->get('browsercache', false),
'caching' => false,
);
$this->_cache = JCache::getInstance('page', $options);
$this->_cache_key = JUri::getInstance()->toString();
}
/**
* Converting the site URL to fit to the HTTP request
*
*/
function onAfterInitialise()
{
global $_PROFILER;
$app = JFactory::getApplication();
$user = JFactory::getUser();
if ($app->isAdmin())
{
return;
}
if (count($app->getMessageQueue()))
{
return;
}
if ($user->get('guest') && $app->input->getMethod() == 'GET')
{
$this->_cache->setCaching(true);
}
$data = $this->_cache->get($this->_cache_key);
if ($data !== false)
{
// Set cached body
JResponse::setBody($data);
echo JResponse::toString($app->getCfg('gzip'));
if (JDEBUG)
{
$_PROFILER->mark('afterCache');
}
$app->close();
}
}
function onAfterRender()
{
$app = JFactory::getApplication();
if ($app->isAdmin())
{
return;
}
if (count($app->getMessageQueue()))
{
return;
}
$user = JFactory::getUser();
if ($user->get('guest'))
{
// We need to check again here, because auto-login plugins have not been fired before the first aid check
$this->_cache->store(null, $this->_cache_key);
}
}
}