159 lines
3.6 KiB
PHP
Executable File
159 lines
3.6 KiB
PHP
Executable File
<?php
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/*
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* 2007-2013 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 2007-2013 PrestaShop SA
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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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class CacheFsCore extends Cache
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{
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/**
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* @var int Number of subfolders to dispatch cached filenames
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*/
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protected $depth;
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protected function __construct()
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{
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$this->depth = Db::getInstance()->getValue('SELECT value FROM '._DB_PREFIX_.'configuration WHERE name= \'PS_CACHEFS_DIRECTORY_DEPTH\'', false);
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$keys_filename = $this->getFilename(self::KEYS_NAME);
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if (file_exists($keys_filename))
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$this->keys = unserialize(file_get_contents($keys_filename));
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}
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/**
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* @see Cache::_set()
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*/
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protected function _set($key, $value, $ttl = 0)
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{
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return (@file_put_contents($this->getFilename($key), serialize($value)));
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}
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/**
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* @see Cache::_get()
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*/
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protected function _get($key)
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{
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if ($this->keys[$key] > 0 && $this->keys[$key] < time())
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{
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$this->delete($key);
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return false;
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}
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$filename = $this->getFilename($key);
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if (!file_exists($filename))
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{
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unset($this->keys[$key]);
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$this->_writeKeys();
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return false;
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}
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$file = file_get_contents($filename);
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return unserialize($file);
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}
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/**
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* @see Cache::_exists()
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*/
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protected function _exists($key)
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{
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if ($this->keys[$key] > 0 && $this->keys[$key] < time())
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{
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$this->delete($key);
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return false;
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}
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return isset($this->keys[$key]) && file_exists($this->getFilename($key));
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}
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/**
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* @see Cache::_delete()
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*/
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protected function _delete($key)
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{
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$filename = $this->getFilename($key);
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if (!file_exists($filename))
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return true;
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return unlink($filename);
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}
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/**
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* @see Cache::_writeKeys()
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*/
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protected function _writeKeys()
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{
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@file_put_contents($this->getFilename(self::KEYS_NAME), serialize($this->keys));
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}
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/**
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* @see Cache::flush()
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*/
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public function flush()
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{
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$this->delete('*');
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return true;
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}
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/**
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* Delete cache directory
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*/
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public static function deleteCacheDirectory()
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{
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Tools::deleteDirectory(_PS_CACHEFS_DIRECTORY_, false);
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}
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/**
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* Create cache directory
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*
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* @param int $level_depth
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* @param string $directory
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*/
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public static function createCacheDirectories($level_depth, $directory = false)
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{
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if (!$directory)
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$directory = _PS_CACHEFS_DIRECTORY_;
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$chars = '0123456789abcdef';
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for ($i = 0, $length = strlen($chars); $i < $length; $i++)
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{
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$new_dir = $directory.$chars[$i].'/';
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if (mkdir($new_dir))
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if (chmod($new_dir, 0777))
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if ($level_depth - 1 > 0)
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CacheFs::createCacheDirectories($level_depth - 1, $new_dir);
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}
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}
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/**
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* Transform a key into its absolute path
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*
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* @param string $key
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* @return string
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*/
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protected function getFilename($key)
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{
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$path = _PS_CACHEFS_DIRECTORY_;
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for ($i = 0; $i < $this->depth; $i++)
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$path .= $key[$i].'/';
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return $path.$key;
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}
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}
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