[+] MO : CloudCache module
git-svn-id: http://dev.prestashop.com/svn/v1/branches/1.5.x@14929 b9a71923-0436-4b27-9f14-aed3839534dd
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jObregon
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<?php
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/*
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* 2007-2012 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 2007-2012 PrestaShop SA
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* @version Release: $Revision: 12823 $
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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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if (!class_exists('CloudCache') && file_exists(dirname(__FILE__).'/../../modules/cloudcache/cloudcache.php'))
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require(dirname(__FILE__).'/../../modules/cloudcache/cloudcache.php');
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class Tools extends ToolsCore
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{
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/** @var _totalServerCount Total count of all servers */
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private static $_totalServerCount = 0;
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/** @var _servers Array containing all the media servers by type */
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private static $_servers = null;
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/** @var _serversCount Array countaining the count of servers by type */
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private static $_serversCount = null;
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/** @var _fileTypes Available file types */
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private static $_fileTypes = null;
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/** @var _activatedModule Flag weither or not the module is active */
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private static $_activatedModule = false;
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public static $id_group_shop = 1;
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public static $id_shop = 1;
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/**
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* @brief Init the statics needed by getMediaServer
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*/
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private static function _initServers()
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{
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require_once(dirname(__FILE__).'/../../modules/cloudcache/backward_compatibility/backward.php');
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$context = Context::getContext();
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self::$id_shop = $context->shop->id;
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self::$id_group_shop = $context->shop->id_group_shop;
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// Init the statics
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self::$_servers = array();
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self::$_serversCount = array();
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self::$_fileTypes = array(CLOUDCACHE_FILE_TYPE_IMG, CLOUDCACHE_FILE_TYPE_JS,
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CLOUDCACHE_FILE_TYPE_CSS, CLOUDCACHE_FILE_TYPE_OTHER,
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CLOUDCACHE_FILE_TYPE_ALL);
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// check if the module is active
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self::$_activatedModule = Configuration::get('CLOUDCACHE_API_ACTIVE');
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foreach (self::$_fileTypes as $type)
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{
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self::$_servers[$type] = array();
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self::$_serversCount[$type] = 0;
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}
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$d = Db::getInstance()->executeS('SELECT `cdn_url`, `file_type`
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FROM `'._DB_PREFIX_.'cloudcache_zone`
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WHERE `file_type` != \''.CLOUDCACHE_FILE_TYPE_UNASSOCIATED.'\' AND `id_shop` = '.(int)self::$id_shop);
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$allOnly = false;
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foreach ($d as $line)
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if ($line['file_type'] == CLOUDCACHE_FILE_TYPE_ALL)
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{
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self::$_servers[CLOUDCACHE_FILE_TYPE_ALL][] = pSQL($line['cdn_url']);
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self::$_serversCount[CLOUDCACHE_FILE_TYPE_ALL]++;
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self::$_totalServerCount++;
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$allOnly = true;
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}
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foreach ($d as $line)
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if ($line['file_type'] && !$allOnly)
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{
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self::$_servers[$line['file_type']][] = $line['cdn_url'];
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self::$_serversCount[$line['file_type']]++;
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self::$_totalServerCount++;
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}
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}
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public static function addJS($js_uri)
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{
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parent::addJS($js_uri);
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global $js_files;
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foreach ($js_files as &$file)
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if (!preg_match('/^http(s?):\/\//i', $file))
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$file = 'http://'.self::getMediaServer($file).$file;
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}
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public static function addCSS($css_uri, $css_media_type = 'all')
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{
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parent::addCSS($css_uri, $css_media_type);
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global $css_files;
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$new = array();
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foreach ($css_files as $key => $file)
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{
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if (!preg_match('/^http(s?):\/\//i', $key))
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$key = 'http://'.self::getMediaServer($key).$key;
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$new[$key] = $file;
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}
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$css_files = $new;
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}
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/**
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* @brief Retrieve the media server to use
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*
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* @param filename Name of the file to serve (acually, part of the path)
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*
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* @todo Check performences
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*
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* @return URL of the server to use.
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*/
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public static function getMediaServer($filename)
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{
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// Override default behavior only if module is active
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if (!class_exists('CloudCache'))
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include(dirname(__FILE__).'/../../modules/cloudcache/cloudcache.php');
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$module = new CloudCache();
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if (!$module->active)
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return parent::getMediaServer($filename);
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// Init the server list if needed
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if (!self::$_servers)
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self::_initServers();
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if (!self::$_activatedModule)
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return parent::getMediaServer($filename);
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// If there is a least one ALL server, then use one of them
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if (self::$_serversCount[CLOUDCACHE_FILE_TYPE_ALL])
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// Return one of those server
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return (self::$_servers[CLOUDCACHE_FILE_TYPE_ALL][(abs(crc32($filename)) %
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self::$_serversCount[CLOUDCACHE_FILE_TYPE_ALL])]);
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// If there is servers, then use them
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if (self::$_totalServerCount)
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{
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// Loop on the file types to find the current one
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foreach (self::$_fileTypes as $type)
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// If we find the type in the filename, then it is our
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if (strstr($filename, $type) && self::$_serversCount[$type])
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{
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// Return one of those server
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return (self::$_servers[$type][(abs(crc32($filename)) %
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self::$_serversCount[$type])]);
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}
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// If no file type found, then it is 'other'
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// If there is server setted for the 'other' type, use it
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if (self::$_serversCount[CLOUDCACHE_FILE_TYPE_OTHER])
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// Return one of the server setted up
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return (self::$_servers[$type][(abs(crc32($filename)) %
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self::$_serversCount[$type])]);
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}
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// If there is no server setted up, then use the parent method
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return parent::getMediaServer($filename);
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}
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}
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