77 lines
2.1 KiB
PHP
Executable File
77 lines
2.1 KiB
PHP
Executable File
<?php
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/*
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* 2007-2011 PrestaShop
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*
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* NOTICE OF LICENSE
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*
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* This source file is subject to the Open Software License (OSL 3.0)
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* that is bundled with this package in the file LICENSE.txt.
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* It is also available through the world-wide-web at this URL:
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* http://opensource.org/licenses/osl-3.0.php
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* If you did not receive a copy of the license and are unable to
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* obtain it through the world-wide-web, please send an email
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* to license@prestashop.com so we can send you a copy immediately.
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*
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* DISCLAIMER
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*
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* Do not edit or add to this file if you wish to upgrade PrestaShop to newer
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* versions in the future. If you wish to customize PrestaShop for your
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* needs please refer to http://www.prestashop.com for more information.
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*
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* @author PrestaShop SA <contact@prestashop.com>
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* @copyright 2007-2011 PrestaShop SA
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* @version Release: $Revision: 8962 $
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* @license http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0)
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* International Registered Trademark & Property of PrestaShop SA
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*/
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abstract class CacheCore
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{
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protected static $_instance;
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protected $_keysCached = array();
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protected $_tablesCached = array();
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protected $_blackList = array('cart',
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'cart_discount',
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'cart_product',
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'connections',
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'connections_source',
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'connections_page',
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'customer',
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'customer_group',
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'customized_data',
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'guest',
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'pagenotfound',
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'page_viewed');
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public static function getInstance()
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{
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if (!isset(self::$_instance))
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{
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$caching_system = _PS_CACHING_SYSTEM_;
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self::$_instance = new $caching_system();
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}
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return self::$_instance;
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}
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protected function __construct()
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{
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}
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protected function isBlacklist($query)
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{
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foreach ($this->_blackList AS $find)
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if (strpos($query, $find))
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return true;
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return false;
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}
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abstract public function get($key);
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abstract public function delete($key, $timeout = 0);
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abstract public function set($key, $value, $expire = 0);
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abstract public function flush();
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abstract public function setQuery($query, $result);
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abstract public function deleteQuery($query);
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}
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