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CacheDispatcher.php
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CacheDispatcher.php
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<?php
/**
* CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
* Copyright 2005-2012, Cake Software Foundation, Inc. (http://cakefoundation.org)
*
* Licensed under The MIT License
* Redistributions of files must retain the above copyright notice.
*
* @copyright Copyright 2005-2012, Cake Software Foundation, Inc. (http://cakefoundation.org)
* @link http://cakephp.org CakePHP(tm) Project
* @since CakePHP(tm) v 2.2
* @license MIT License (http://www.opensource.org/licenses/mit-license.php)
*/
App::uses('DispatcherFilter', 'Routing');
/**
* This filter will check wheter the response was previously cached in the file system
* and served it back to the client if appropriate.
*
* @package Cake.Routing.Filter
*/
class CacheDispatcher extends DispatcherFilter {
/**
* Default priority for all methods in this filter
* This filter should run before the request gets parsed by router
*
* @var int
*/
public $priority = 9;
/**
* Checks whether the response was cached and set the body accordingly.
*
* @param CakeEvent $event containing the request and response object
* @return CakeResponse with cached content if found, null otherwise
*/
public function beforeDispatch(CakeEvent $event) {
if (Configure::read('Cache.check') !== true) {
return;
}
$path = $event->data['request']->here();
if ($path == '/') {
$path = 'home';
}
$path = strtolower(Inflector::slug($path));
$filename = CACHE . 'views' . DS . $path . '.php';
if (!file_exists($filename)) {
$filename = CACHE . 'views' . DS . $path . '_index.php';
}
if (file_exists($filename)) {
$controller = null;
$view = new View($controller);
$result = $view->renderCache($filename, microtime(true));
if ($result !== false) {
$event->stopPropagation();
$event->data['response']->body($result);
return $event->data['response'];
}
}
}
}