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cb53dc61b0
Implemented Validation::extension(); and Vaidation::range(); Updated copyright notices in all files" git-svn-id: https://svn.cakephp.org/repo/branches/1.2.x.x@6296 3807eeeb-6ff5-0310-8944-8be069107fe0
146 lines
No EOL
3.9 KiB
PHP
146 lines
No EOL
3.9 KiB
PHP
<?php
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/* SVN FILE: $Id$ */
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/**
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* Xcache storage engine for cache.
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*
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*
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* PHP versions 4 and 5
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*
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* CakePHP(tm) : Rapid Development Framework <http://www.cakephp.org/>
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* Copyright 2005-2008, Cake Software Foundation, Inc.
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* 1785 E. Sahara Avenue, Suite 490-204
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* Las Vegas, Nevada 89104
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*
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* Licensed under The MIT License
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* Redistributions of files must retain the above copyright notice.
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*
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* @filesource
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* @copyright Copyright 2005-2008, Cake Software Foundation, Inc.
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* @link http://www.cakefoundation.org/projects/info/cakephp CakePHP(tm) Project
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* @package cake
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* @subpackage cake.cake.libs.cache
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* @since CakePHP(tm) v 1.2.0.4947
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* @version $Revision$
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* @modifiedby $LastChangedBy$
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* @lastmodified $Date$
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* @license http://www.opensource.org/licenses/mit-license.php The MIT License
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*/
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/**
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* Xcache storage engine for cache
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*
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* @link http://trac.lighttpd.net/xcache/ Xcache
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* @package cake
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* @subpackage cake.cake.libs.cache
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*/
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class XcacheEngine extends CacheEngine {
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/**
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* settings
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* PHP_AUTH_USER = xcache.admin.user, default cake
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* PHP_AUTH_PW = xcache.admin.password, default cake
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*
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* @var array
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* @access public
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*/
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var $settings = array();
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/**
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* Initialize the Cache Engine
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*
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* Called automatically by the cache frontend
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* To reinitialize the settings call Cache::engine('EngineName', [optional] settings = array());
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*
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* @param array $setting array of setting for the engine
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* @return boolean True if the engine has been successfully initialized, false if not
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* @access public
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*/
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function init($settings) {
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parent::init($settings);
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$defaults = array('PHP_AUTH_USER' => 'cake', 'PHP_AUTH_PW' => 'cake');
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$this->settings = array_merge($this->settings, $defaults, $settings);
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return function_exists('xcache_info');
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}
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/**
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* Write data for key into cache
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*
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* @param string $key Identifier for the data
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* @param mixed $value Data to be cached
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* @param integer $duration How long to cache the data, in seconds
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* @return boolean True if the data was succesfully cached, false on failure
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* @access public
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*/
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function write($key, &$value, $duration) {
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return xcache_set($key, $value, $duration);
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}
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/**
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* Read a key from the cache
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*
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* @param string $key Identifier for the data
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* @return mixed The cached data, or false if the data doesn't exist, has expired, or if there was an error fetching it
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* @access public
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*/
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function read($key) {
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if (xcache_isset($key)) {
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return xcache_get($key);
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}
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return false;
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}
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/**
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* Delete a key from the cache
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*
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* @param string $key Identifier for the data
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* @return boolean True if the value was succesfully deleted, false if it didn't exist or couldn't be removed
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* @access public
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*/
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function delete($key) {
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return xcache_unset($key);
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}
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/**
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* Delete all keys from the cache
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*
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* @return boolean True if the cache was succesfully cleared, false otherwise
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* @access public
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*/
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function clear() {
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$result = true;
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$this->__auth();
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for ($i = 0, $max = xcache_count(XC_TYPE_VAR); $i < $max; $i++) {
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if (!xcache_clear_cache(XC_TYPE_VAR, $i)) {
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$result = false;
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break;
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}
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}
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$this->__auth(true);
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return $result;
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}
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/**
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* Populates and reverses $_SERVER authentication values
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* Makes necessary changes (and reverting them back) in $_SERVER
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*
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* This has to be done because xcache_clear_cache() needs to pass Basic Http Auth
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* (see xcache.admin configuration settings)
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*
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* @param boolean Revert changes
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* @access private
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*/
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function __auth($reverse = false) {
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static $backup = array();
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$keys = array('PHP_AUTH_USER', 'PHP_AUTH_PW');
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foreach ($keys as $key) {
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if ($reverse) {
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if (isset($backup[$key])) {
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$_SERVER[$key] = $backup[$key];
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unset($backup[$key]);
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} else {
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unset($_SERVER[$key]);
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}
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} else {
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$value = env($key);
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if (!empty($value)) {
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$backup[$key] = $value;
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}
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$varName = '__' . $key;
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$_SERVER[$key] = $this->settings[$varName];
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}
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}
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}
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}
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?>
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