442 lines
13 KiB
PHP
442 lines
13 KiB
PHP
<?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: 6844 $
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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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/**
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* @since 1.5.0
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*/
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class DispatcherCore
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{
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/**
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* @var Dispatcher
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*/
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public static $instance = null;
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/**
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* List of default routes
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*
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* @var array
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*/
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public $default_routes = array(
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'product_rule' => array(
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'controller' => 'product',
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'rule' => '{category:/}{id}-{rewrite}{-:ean13}.html',
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'keywords' => array(
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'id' => array('regexp' => '[0-9]+', 'param' => 'id_product'),
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'rewrite' => array('regexp' => '[a-zA-Z0-9-]*'),
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'ean13' => array('regexp' => '[a-zA-Z0-9-]*'),
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'category' => array('regexp' => '[a-zA-Z0-9-]*'),
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'reference' => array('regexp' => '[a-zA-Z0-9-]*'),
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'meta_keywords' => array('regexp' => '[a-zA-Z0-9-]*'),
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'meta_title' => array('regexp' => '[a-zA-Z0-9-]*'),
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'manufacturer' => array('regexp' => '[a-zA-Z0-9-]*'),
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'supplier' => array('regexp' => '[a-zA-Z0-9-]*'),
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'price' => array('regexp' => '[0-9\.,]*'),
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'tags' => array('regexp' => '[a-zA-Z0-9-]*'),
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),
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),
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'category_rule' => array(
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'controller' => 'category',
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'rule' => '{id}-{rewrite}',
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'keywords' => array(
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'id' => array('regexp' => '[0-9]+', 'param' => 'id_category'),
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'rewrite' => array('regexp' => '[a-zA-Z0-9-]*'),
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'meta_keywords' => array('regexp' => '[a-zA-Z0-9-]*'),
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'meta_title' => array('regexp' => '[a-zA-Z0-9-]*'),
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),
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),
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'supplier_rule' => array(
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'controller' => 'supplier',
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'rule' => '{id}__{rewrite}',
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'keywords' => array(
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'id' => array('regexp' => '[0-9]+', 'param' => 'id_supplier'),
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'rewrite' => array('regexp' => '[a-zA-Z0-9-]*'),
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'meta_keywords' => array('regexp' => '[a-zA-Z0-9-]*'),
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'meta_title' => array('regexp' => '[a-zA-Z0-9-]*'),
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),
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),
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'manufacturer_rule' => array(
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'controller' => 'manufacturer',
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'rule' => '{id}_{rewrite}',
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'keywords' => array(
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'id' => array('regexp' => '[0-9]+', 'param' => 'id_manufacturer'),
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'rewrite' => array('regexp' => '[a-zA-Z0-9-]*'),
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'meta_keywords' => array('regexp' => '[a-zA-Z0-9-]*'),
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'meta_title' => array('regexp' => '[a-zA-Z0-9-]*'),
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),
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),
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'cms_rule' => array(
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'controller' => 'cms',
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'rule' => 'content/{id}-{rewrite}',
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'keywords' => array(
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'id' => array('regexp' => '[0-9]+', 'param' => 'id_cms'),
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'rewrite' => array('regexp' => '[a-zA-Z0-9-]*'),
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'meta_keywords' => array('regexp' => '[a-zA-Z0-9-]*'),
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'meta_title' => array('regexp' => '[a-zA-Z0-9-]*'),
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),
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),
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'cms_category_rule' => array(
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'controller' => 'cms',
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'rule' => 'content/category/{id}-{rewrite}',
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'keywords' => array(
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'id' => array('regexp' => '[0-9]+', 'param' => 'id_cms_category'),
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'rewrite' => array('regexp' => '[a-zA-Z0-9-]*'),
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'meta_keywords' => array('regexp' => '[a-zA-Z0-9-]*'),
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'meta_title' => array('regexp' => '[a-zA-Z0-9-]*'),
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),
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),
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);
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/**
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* If true, use routes to build URL (mod rewrite must be activated)
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*
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* @var bool
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*/
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protected $use_routes = false;
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/**
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* List of loaded routes
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*
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* @var array
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*/
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protected $routes = array();
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/**
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* Current controller name
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*
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* @var string
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*/
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protected $controller;
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/**
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* Current request uri
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*
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* @var string
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*/
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protected $request_uri;
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/**
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* Store empty route (a route with an empty rule)
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*
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* @var array
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*/
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protected $empty_route;
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/**
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* Get current instance of dispatcher (singleton)
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*
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* @return Dispatcher
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*/
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public static function getInstance()
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{
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if (!self::$instance)
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self::$instance = new Dispatcher();
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return self::$instance;
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}
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/**
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* Need to be instancied from getInstance() method
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*/
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protected function __construct()
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{
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$this->use_routes = (bool)Configuration::get('PS_REWRITING_SETTINGS');
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$this->loadRoutes();
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// Get request uri (HTTP_X_REWRITE_URL is used by IIS)
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if (isset($_SERVER['request_uri']))
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$this->request_uri = $_SERVER['request_uri'];
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else if (isset($_SERVER['HTTP_X_REWRITE_URL']))
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$this->request_uri = $_SERVER['HTTP_X_REWRITE_URL'];
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}
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/**
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* Find the controller and instantiate it
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*/
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public function dispatch()
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{
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$this->request_uri = preg_replace('#^'.preg_quote(Context::getContext()->shop->getBaseURI(), '#').'#i', '/', $this->request_uri);
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// If there are several languages, get language from uri
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if ($this->use_routes && Language::isMultiLanguageActivated())
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if (preg_match('#^/([a-z]{2})/#', $this->request_uri, $m))
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{
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$_GET['isolang'] = $m[1];
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$this->request_uri = substr($this->request_uri, 3);
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}
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// Get and instantiate controller
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$this->getController();
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$controllers = Dispatcher::getControllers();
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if (!$this->controller)
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$this->controller = 'index';
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if (!isset($controllers[$this->controller]))
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$this->controller = 'pagenotfound';
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Controller::getController($controllers[$this->controller])->run();
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}
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/**
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* Load default routes
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*/
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protected function loadRoutes()
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{
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$context = Context::getContext();
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foreach ($this->default_routes as $id => $route)
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$this->addRoute($id, $route['rule'], $route['controller'], $route['keywords']);
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if ($this->use_routes)
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{
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// Load routes from meta table
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$sql = 'SELECT m.page, ml.url_rewrite
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FROM `'._DB_PREFIX_.'meta` m
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LEFT JOIN `'._DB_PREFIX_.'meta_lang` ml ON (m.id_meta = ml.id_meta'.$context->shop->sqlLang('ml').')
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WHERE id_lang = '.(int)$context->language->id.'
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ORDER BY LENGTH(ml.url_rewrite) DESC';
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if ($results = Db::getInstance()->ExecuteS($sql))
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foreach ($results as $row)
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{
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if ($row['url_rewrite'])
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$this->addRoute($row['page'], $row['url_rewrite'], $row['page']);
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else
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$this->empty_route = array(
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'routeID' => $row['page'],
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'rule' => $row['url_rewrite'],
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'controller' => $row['page'],
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);
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}
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// Load custom routes
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foreach ($this->default_routes as $route_id => $route_data)
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if ($custom_route = Configuration::get('PS_ROUTE_'.$route_id))
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$this->addRoute($route_id, $custom_route, $route_data['controller'], $route_data['keywords']);
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}
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}
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/**
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*
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* @param string $id Name of the route (need to be uniq, a second route with same name will override the first)
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* @param string $rule Url rule
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* @param string $controller Controller to call if request uri match the rule
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*/
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public function addRoute($route_id, $rule, $controller, $keywords = array())
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{
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$regexp = preg_quote($rule, '#');
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if ($keywords)
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{
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$transform_keywords = array();
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preg_match_all('#\\\{(([^{}]+)\\\:)?('.implode('|', array_keys($keywords)).')(\\\:([^{}]+))?\\\}#', $regexp, $m);
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for ($i = 0, $total = count($m[0]); $i < $total; $i++)
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{
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$prepend = $m[2][$i];
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$keyword = $m[3][$i];
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$append = $m[5][$i];
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$transform_keywords[$keyword] = array(
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'required' => isset($keywords[$keyword]['param']),
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'prepend' => stripslashes($prepend),
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'append' => stripslashes($append),
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);
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if (isset($keywords[$keyword]['param']))
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$regexp = str_replace($m[0][$i], (($prepend) ? '('.$prepend.')?' : '').'(?P<'.$keywords[$keyword]['param'].'>'.$keywords[$keyword]['regexp'].')'.(($append) ? '('.$append.')?' : ''), $regexp);
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else
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$regexp = str_replace($m[0][$i], (($prepend) ? '('.$prepend.')?' : '').'('.$keywords[$keyword]['regexp'].')'.(($append) ? '('.$append.')?' : ''), $regexp);
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}
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$keywords = $transform_keywords;
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}
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$regexp = '#^/'.$regexp.'#';
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$this->routes[$route_id] = array(
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'rule' => $rule,
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'regexp' => $regexp,
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'controller' => $controller,
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'keywords' => $keywords,
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);
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}
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/**
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* Check if a keyword is written in a route rule
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*
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* @param string $route_id
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* @param string $keyword
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* @return bool
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*/
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public function hasKeyword($route_id, $keyword)
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{
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if (!isset($this->routes[$route_id]))
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return false;
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return preg_match('#\{([^{}]+:)?'.preg_quote($keyword, '#').'(:[^{}])?\}#', $this->routes[$route_id]['rule']);
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}
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/**
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* Check if a route rule contain all required keywords of default route definition
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*
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* @param string $route_id
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* @param string $rule Rule to verify
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* @param array $errors List of missing keywords
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*/
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public function validateRoute($route_id, $rule, &$errors = array())
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{
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$errors = array();
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if (!isset($this->default_routes[$route_id]))
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return false;
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foreach ($this->default_routes[$route_id]['keywords'] as $keyword => $data)
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if (isset($data['param']) && !preg_match('#\{([^{}]+:)?'.$keyword.'(:[^{}])?\}#', $rule))
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$errors[] = $keyword;
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return (count($errors)) ? false : true;
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}
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/**
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* Create an url from
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*
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* @param string $route_id Name the route
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* @param array $params
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* @param bool $use_routes If false, don't use to create this url
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*/
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public function createUrl($route_id, $params = array(), $use_routes = true)
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{
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if (!is_array($params))
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die('Dispatcher::createUrl() $params must be an array');
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if (!isset($this->routes[$route_id]))
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{
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$query = http_build_query($params);
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return ($route_id == 'index') ? 'index.php'.(($query) ? '?'.$query : '') : 'index.php?controller='.$route_id.(($query) ? '&'.$query : '');
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}
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$route = $this->routes[$route_id];
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// Check required fields
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$query_params = array();
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foreach ($route['keywords'] as $key => $data)
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{
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if (!$data['required'])
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continue;
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if (!array_key_exists($key, $params))
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die('Dispatcher::createUrl() miss required parameter "'.$key.'" for route "'.$route_id.'"');
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$query_params[$this->default_routes[$route_id]['keywords'][$key]['param']] = $params[$key];
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}
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// Build an url which match a route
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if ($this->use_routes && $use_routes)
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{
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$url = $route['rule'];
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foreach ($params as $key => $value)
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{
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if (!isset($route['keywords'][$key]))
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continue;
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$data = $route['keywords'][$key];
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if ($params[$key])
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$replace = $route['keywords'][$key]['prepend'].$params[$key].$route['keywords'][$key]['append'];
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else
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$replace = '';
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$url = preg_replace('#\{([^{}]+:)?'.$key.'(:[^{}])?\}#', $replace, $url);
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}
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$url = preg_replace('#\{([^{}]+:)?[a-z0-9_]+?(:[^{}])?\}#', '', $url);
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}
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// Build a classic url index.php?controller=foo&...
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else
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$url = 'index.php?controller='.$route['controller'].(($query_params) ? '&'.http_build_query($query_params) : '');
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return $url;
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}
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/**
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* Retrieve the controller from url or request uri if routes are activated
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*
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* @return string
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*/
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public function getController()
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{
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if ($this->controller)
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return $this->controller;
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$controller = Tools::getValue('controller');
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if (isset($controller) && preg_match('/^([0-9a-z_-]+)\?(.*)=(.*)$/Ui', $controller, $m))
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{
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$controller = $m[1];
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if (isset($_GET['controller']))
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$_GET[$m[2]] = $m[3];
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else if (isset($_POST['controller']))
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$_POST[$m[2]] = $m[3];
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}
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// Use routes ? (for url rewriting)
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if ($this->use_routes && !$controller)
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{
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if (!$this->request_uri)
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return 'pagenotfound';
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$controller = 'index';
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// Add empty route as last route to prevent this greedy regexp to match request uri before right time
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if ($this->empty_route)
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$this->addRoute($this->empty_route['routeID'], $this->empty_route['rule'], $this->empty_route['controller']);
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foreach ($this->routes as $route)
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if (preg_match($route['regexp'], $this->request_uri, $m))
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{
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// Route found ! Now fill $_GET with parameters of uri
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$controller = $route['controller'];
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foreach ($m as $k => $v)
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if (!is_numeric($k))
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$_GET[$k] = $v;
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break;
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}
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$this->controller = $controller;
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}
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// Default mode, take controller from url
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else
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$this->controller = $controller;
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$this->controller = str_replace('-', '', strtolower($this->controller));
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$_GET['controller'] = $this->controller;
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return $this->controller;
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}
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/**
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* Get list of available controllers
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*
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* @return array
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*/
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public static function getControllers()
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{
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$controller_files = scandir(_PS_ROOT_DIR_.DIRECTORY_SEPARATOR.'controllers');
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$controllers = array();
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foreach ($controller_files as $controller_filename)
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if (substr($controller_filename, -14, 14) == 'Controller.php')
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$controllers[strtolower(substr($controller_filename, 0, -14))] = basename($controller_filename, '.php');
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// add default controller
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$controllers['index'] = 'IndexController';
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$controllers['authentication'] = $controllers['auth'];
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$controllers['productscomparison'] = $controllers['compare'];
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return $controllers;
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}
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}
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