www.gusucode.com > FavShop网店系统源码程序 > FavShop网店系统 1.0/upload/cake/libs/view/helpers/cache.php
<?php
/* SVN FILE: $Id: cache.php 6311 2008-01-02 06:33:52Z phpnut $ */
/**
* Short description for file.
*
* Long description for file
*
* PHP versions 4 and 5
*
* CakePHP(tm) : Rapid Development Framework <http://www.cakephp.org/>
* Copyright 2005-2008, Cake Software Foundation, Inc.
* 1785 E. Sahara Avenue, Suite 490-204
* Las Vegas, Nevada 89104
*
* Licensed under The MIT License
* Redistributions of files must retain the above copyright notice.
*
* @filesource
* @copyright Copyright 2005-2008, Cake Software Foundation, Inc.
* @link http://www.cakefoundation.org/projects/info/cakephp CakePHP(tm) Project
* @package cake
* @subpackage cake.cake.libs.view.helpers
* @since CakePHP(tm) v 1.0.0.2277
* @version $Revision: 6311 $
* @modifiedby $LastChangedBy: phpnut $
* @lastmodified $Date: 2008-01-02 00:33:52 -0600 (Wed, 02 Jan 2008) $
* @license http://www.opensource.org/licenses/mit-license.php The MIT License
*/
/**
* Short description for file.
*
* Long description for file
*
* @package cake
* @subpackage cake.cake.libs.view.helpers
*/
class CacheHelper extends AppHelper {
/**
* Array of strings replaced in cached views.
* The strings are found between <cake:nocache><cake:nocache> in views
*
* @var array
* @access private
*/
var $__replace = array();
/**
* Array of string that are replace with there var replace above.
* The strings are any content inside <cake:nocache><cake:nocache> and includes the tags in views
*
* @var array
* @access private
*/
var $__match = array();
/**
* holds the View object passed in final call to CacheHelper::cache()
*
* @var object
* @access public
*/
var $view;
/**
* cache action time
*
* @var object
* @access public
*/
var $cacheAction;
/**
* Main method used to cache a view
*
* @param string $file File to cache
* @param string $out output to cache
* @param boolean $cache
* @return view ouput
*/
function cache($file, $out, $cache = false) {
if (is_array($this->cacheAction)) {
$check = str_replace('/', '_', $this->here);
$replace = str_replace('/', '_', $this->base);
$match = str_replace($this->base, '', $this->here);
$match = str_replace('//', '/', $match);
$match = str_replace('/' . $this->controllerName . '/', '', $match);
$check = str_replace($replace, '', $check);
$check = str_replace('_' . $this->controllerName . '_', '', $check);
$check = Inflector::slug($check);
$check = preg_replace('/^_+/', '', $check);
$keys = str_replace('/', '_', array_keys($this->cacheAction));
$found = array_keys($this->cacheAction);
$index = null;
$count = 0;
foreach ($keys as $key => $value) {
if (strpos($check, $value) === 0) {
$index = $found[$count];
break;
}
$count++;
}
if (isset($index)) {
$pos1 = strrpos($match, '/');
$char = strlen($match) - 1;
if ($pos1 == $char) {
$match = substr($match, 0, $char);
}
$key = $match;
} elseif ($this->action == 'index') {
$index = 'index';
}
if (isset($this->cacheAction[$index])) {
$cacheTime = $this->cacheAction[$index];
} else {
$cacheTime = 0;
}
} else {
$cacheTime = $this->cacheAction;
}
if ($cacheTime != '' && $cacheTime > 0) {
$this->__parseFile($file, $out);
if ($cache === true) {
$cached = $this->__parseOutput($out);
$this->__writeFile($cached, $cacheTime);
}
return $out;
} else {
return $out;
}
}
/**
* Parse file searching for no cache tags
*
* @param string $file
* @param boolean $cache
* @access private
*/
function __parseFile($file, $cache) {
if (is_file($file)) {
$file = file_get_contents($file);
} elseif ($file = fileExistsInPath($file)) {
$file = file_get_contents($file);
}
preg_match_all('/(<cake:nocache>(?<=<cake:nocache>)[\\s\\S]*?(?=<\/cake:nocache>)<\/cake:nocache>)/i', $cache, $oresult, PREG_PATTERN_ORDER);
preg_match_all('/(?<=<cake:nocache>)([\\s\\S]*?)(?=<\/cake:nocache>)/i', $file, $result, PREG_PATTERN_ORDER);
if (!empty($result['0'])) {
$count = 0;
foreach ($result['0'] as $result) {
if (isset($oresult['0'][$count])) {
$this->__replace[] = $result;
$this->__match[] = $oresult['0'][$count];
}
$count++;
}
}
}
/**
* Parse the output and replace cache tags
*
* @param sting $cache
* @return string with all replacements made to <cake:nocache><cake:nocache>
* @access private
*/
function __parseOutput($cache) {
$count = 0;
if (!empty($this->__match)) {
foreach ($this->__match as $found) {
$original = $cache;
$length = strlen($found);
$position = 0;
for ($i = 1; $i <= 1; $i++) {
$position = strpos($cache, $found, $position);
if ($position !== false) {
$cache = substr($original, 0, $position);
$cache .= $this->__replace[$count];
$cache .= substr($original, $position + $length);
} else {
break;
}
}
$count++;
}
return $cache;
}
return $cache;
}
/**
* Write a cached version of the file
*
* @param string $file
* @param sting $timestamp
* @return cached view
* @access private
*/
function __writeFile($content, $timestamp) {
$now = time();
if (is_numeric($timestamp)) {
$cacheTime = $now + $timestamp;
} else {
$cacheTime = strtotime($timestamp, $now);
}
$cache = Inflector::slug($this->here);
if (empty($cache)) {
return;
}
$cache = $cache . '.php';
$file = '<!--cachetime:' . $cacheTime . '--><?php';
if (empty($this->plugin)) {
$file .= '
App::import(\'Controller\', \'' . $this->controllerName. '\');
App::import(\'Model\');
';
} else {
$file .= '
if (!class_exists(\'AppController\')) {
if (file_exists(\'' . APP . 'app_controller.php\')) {
require(\''. APP . 'app_controller.php\');
} else {
require(\''.CAKE . 'app_controller.php\');
}
}
App::import(\'Controller\', \'' . $this->plugin . '.' . $this->controllerName. '\');
App::import(\'Model\', \''.$this->plugin.'\');
';
}
$file .= '$this->controller = new ' . $this->controllerName . 'Controller();
$this->controller->plugin = \''.$this->plugin.'\';
$this->controller->_initComponents();
$this->helpers = unserialize(\'' . serialize($this->helpers) . '\');
$this->base = \'' . $this->base . '\';
$this->layout = \'' . $this->layout. '\';
$this->webroot = \'' . $this->webroot . '\';
$this->here = \'' . $this->here . '\';
$this->namedArgs = \'' . $this->namedArgs . '\';
$this->argSeparator = \'' . $this->argSeparator . '\';
$this->params = unserialize(stripslashes(\'' . addslashes(serialize($this->params)) . '\'));
$this->action = unserialize(\'' . serialize($this->action) . '\');
$this->data = unserialize(stripslashes(\'' . addslashes(serialize($this->data)) . '\'));
$this->themeWeb = \'' . $this->themeWeb . '\';
$this->plugin = \'' . $this->plugin . '\';
Router::setRequestInfo(array($this->params, array(\'base\' => $this->base, \'webroot\' => $this->webroot)));
$loadedHelpers = array();
$loadedHelpers = $this->_loadHelpers($loadedHelpers, $this->helpers);
foreach (array_keys($loadedHelpers) as $helper)
{
$replace = strtolower(substr($helper, 0, 1));
$camelBackedHelper = preg_replace(\'/\\w/\', $replace, $helper, 1);
${$camelBackedHelper} =& $loadedHelpers[$helper];
if (isset(${$camelBackedHelper}->helpers) && is_array(${$camelBackedHelper}->helpers))
{
foreach (${$camelBackedHelper}->helpers as $subHelper)
{
${$camelBackedHelper}->{$subHelper} =& $loadedHelpers[$subHelper];
}
}
$this->loaded[$camelBackedHelper] = (${$camelBackedHelper});
}
?>';
$content = preg_replace("/(<\\?xml)/", "<?php echo '$1';?>",$content);
$file .= $content;
return cache('views' . DS . $cache, $file, $timestamp);
}
}
?>