* @copyright 2007-2011 PrestaShop SA * @version Release: $Revision: 7025 $ * @license http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0) * International Registered Trademark & Property of PrestaShop SA */ class HookCore extends ObjectModel { /** @var string Name and Title */ public $name; public $title; /** * @see ObjectModel::$definition */ public static $definition = array( 'table' => 'hook', 'primary' => 'id_hook', 'fields' => array( 'name' => array('type' => self::TYPE_STRING, 'validate' => 'isHookName', 'required' => true, 'size' => 32), 'title' => array('type' => self::TYPE_STRING), ), ); /** @var array Cache Var */ protected static $_hook_modules_cache = null; protected static $_hook_modules_cache_exec = null; static $_hook_alias = null; /** * Preload hook alias list * * @return boolean preload_needed */ public static function preloadHookAlias() { if (!is_null(self::$_hook_alias)) return false; self::$_hook_alias = array(); $hook_alias_list = Db::getInstance()->executeS('SELECT * FROM `'._DB_PREFIX_.'hook_alias`'); if ($hook_alias_list) foreach ($hook_alias_list as $ha) self::$_hook_alias[strtolower($ha['alias'])] = $ha['name']; return true; } /** * Return retrocompatible hook name * * @param string $hook_name Hook name * @return integer Hook ID */ public static function getRetroHookName($hook_name) { $retro_hook_name = ''; self::preloadHookAlias(); if (isset(self::$_hook_alias[strtolower($hook_name)])) $retro_hook_name = self::$_hook_alias[strtolower($hook_name)]; foreach (self::$_hook_alias as $alias => $name) if ($hook_name == $name) return $alias; return $retro_hook_name; } /** * Return hook ID from name * * @param string $hook_name Hook name * @return integer Hook ID */ public static function getIdByName($hook_name) { if (!Validate::isHookName($hook_name)) die(Tools::displayError()); $retro_hook_name = Hook::getRetroHookName($hook_name); $result = Db::getInstance()->getRow(' SELECT `id_hook`, `name` FROM `'._DB_PREFIX_.'hook` WHERE `name` = \''.pSQL($hook_name).'\' OR `name` = \''.pSQL($retro_hook_name).'\''); return ($result ? $result['id_hook'] : false); } /** * Return Hooks List * * @param integer $position * @return array Hooks List */ public static function getHooks($position = false) { return Db::getInstance(_PS_USE_SQL_SLAVE_)->executeS(' SELECT * FROM `'._DB_PREFIX_.'hook` h '.($position ? 'WHERE h.`position` = 1' : '')); } /** * Preload hook modules cache * * @return boolean preload_needed */ public static function preloadHookModulesCache() { if (!is_null(self::$_hook_modules_cache)) return false; self::$_hook_modules_cache = array(); $sql = 'SELECT h.id_hook, h.name as h_name, title, description, h.position, live_edit, hm.position as hm_position, m.id_module, m.name, active FROM `'._DB_PREFIX_.'hook` h INNER JOIN `'._DB_PREFIX_.'hook_module` hm ON (h.id_hook = hm.id_hook) INNER JOIN `'._DB_PREFIX_.'module` as m ON (m.id_module = hm.id_module) WHERE hm.id_shop IN('.implode(', ', Context::getContext()->shop->getListOfID()).') GROUP BY hm.id_hook, hm.id_module ORDER BY hm.position'; $results = Db::getInstance()->executeS($sql); foreach ($results as $result) { if (!isset(self::$_hook_modules_cache[$result['id_hook']])) self::$_hook_modules_cache[$result['id_hook']] = array(); self::$_hook_modules_cache[$result['id_hook']][$result['id_module']] = array( 'id_hook' => $result['id_hook'], 'title' => $result['title'], 'description' => $result['description'], 'hm.position' => $result['position'], 'live_edit' => $result['live_edit'], 'm.position' => $result['hm_position'], 'id_module' => $result['id_module'], 'name' => $result['name'], 'active' => $result['active'], ); } return true; } /** * Return Hooks List * * @param integer $hookID * @param integer $moduleID (optionnal) * @return array Modules List */ public static function getModulesFromHook($hookID, $moduleID = null) { Hook::preloadHookModulesCache(); $list = (isset(self::$_hook_modules_cache[$hookID])) ? self::$_hook_modules_cache[$hookID] : array(); if ($moduleID) return (isset($list[$moduleID])) ? array($list[$moduleID]) : array(); return $list; } /** * Get Hook Module Cache Exec, testing hook name and retrocompatible hook name * * @param string $hook_name Hook Name * @param string $retro_hook_name Retrocompatible Hook Name * @return string cache */ public static function getHookModulesCacheExec($hook_name, $retro_hook_name) { $hook_name = strtolower($hook_name); $retro_hook_name = strtolower($retro_hook_name); $return = array(); if (isset(self::$_hook_modules_cache_exec[$hook_name])) $return = array_merge((array)$return, (array)self::$_hook_modules_cache_exec[$hook_name]); if (isset(self::$_hook_modules_cache_exec[$retro_hook_name])) $return = array_merge((array)$return, (array)self::$_hook_modules_cache_exec[$retro_hook_name]); if (count($return) > 0) return $return; return false; } /** * Execute modules for specified hook * * @param string $hook_name Hook Name * @param array $hookArgs Parameters for the functions * @return string modules output */ public static function exec($hook_name, $hookArgs = array(), $id_module = NULL) { // Check errors $context = Context::getContext(); if ((!empty($id_module) && !Validate::isUnsignedId($id_module)) || !Validate::isHookName($hook_name)) die(Tools::displayError()); // Check if hook exists if (!Hook::getIdByName($hook_name)) return false; // Get retrocompatible hook name $retro_hook_name = Hook::getRetroHookName($hook_name); // Hook list for live edit $ctrl = $context->controller; if ($ctrl && !in_array($hook_name, $ctrl->hook_list)); $context->controller->hook_list[Hook::getIdByName($hook_name)] = $hook_name; $live_edit = false; if (!isset($hookArgs['cookie']) || !$hookArgs['cookie']) $hookArgs['cookie'] = $context->cookie; if (!isset($hookArgs['cart']) || !$hookArgs['cart']) $hookArgs['cart'] = $context->cart; // If hook modules cache exec is empty, we load it if (!isset(self::$_hook_modules_cache_exec)) { // Get shops and groups list $db = Db::getInstance(_PS_USE_SQL_SLAVE_); $list = $context->shop->getListOfID(); if (isset($context->customer) && $context->customer->isLogged()) $groups = $context->customer->getGroups(); // SQL Request $sql = 'SELECT h.`name` as hook, m.`id_module`, h.`id_hook`, m.`name` as module, h.`live_edit` FROM `'._DB_PREFIX_.'module` m LEFT JOIN `'._DB_PREFIX_.'hook_module` hm ON hm.`id_module` = m.`id_module`'; if (isset($context->customer) && $context->customer->isLogged()) $sql .= 'LEFT JOIN `'._DB_PREFIX_.'module_group` mg ON mg.`id_module` = m.`id_module`'; $sql .= 'LEFT JOIN `'._DB_PREFIX_.'hook` h ON hm.`id_hook` = h.`id_hook` WHERE (SELECT COUNT(*) FROM '._DB_PREFIX_.'module_shop ms WHERE ms.id_module = m.id_module AND ms.id_shop IN('.implode(', ', $list).')) = '.count($list).' AND hm.id_shop IN('.implode(', ', $list).')'; if (isset($context->customer) && $context->customer->isLogged()) $sql .= 'AND (mg.`id_group` IN('.implode(', ', $groups).'))'; $sql .= 'GROUP BY hm.id_hook, hm.id_module ORDER BY hm.`position`'; $results = $db->executeS($sql); // Init cache var self::$_hook_modules_cache_exec = array(); if ($results) foreach ($results as $row) { $row['hook'] = strtolower($row['hook']); if (!isset(self::$_hook_modules_cache_exec[$row['hook']])) self::$_hook_modules_cache_exec[$row['hook']] = array(); self::$_hook_modules_cache_exec[$row['hook']][] = array('id_hook' => $row['id_hook'], 'module' => $row['module'], 'id_module' => $row['id_module'], 'live_edit' => $row['live_edit']); } } // If no modules associated to hook_name or recompatible hook name, we stop the function if (Hook::getHookModulesCacheExec($hook_name, $retro_hook_name) === false) return ''; // We load the cache of the hook $hookModulesCache = Hook::getHookModulesCacheExec($hook_name, $retro_hook_name); // Look on modules list $altern = 0; $output = ''; foreach ($hookModulesCache as $array) { // Check errors if ($id_module && $id_module != $array['id_module']) continue; if (!($moduleInstance = Module::getInstanceByName($array['module']))) continue; // Check permissions $exceptions = $moduleInstance->getExceptions($array['id_hook']); if (in_array(Dispatcher::getInstance()->getController(), $exceptions)) continue; if (isset($context->employee) && !$moduleInstance->getPermission('view', $context->employee)) continue; // Check which / if method is callable $hook_callable = is_callable(array($moduleInstance, 'hook'.$hook_name)); $hook_retro_callable = is_callable(array($moduleInstance, 'hook'.$retro_hook_name)); if (($hook_callable || $hook_retro_callable) && Module::preCall($moduleInstance->name)) { $hookArgs['altern'] = ++$altern; // Call hook method if ($hook_callable) $display = call_user_func(array($moduleInstance, 'hook'.$hook_name), $hookArgs); else if ($hook_retro_callable) $display = call_user_func(array($moduleInstance, 'hook'.$retro_hook_name), $hookArgs); // Live edit if ($array['live_edit'] && ((Tools::isSubmit('live_edit') && Tools::getValue('ad') && (Tools::getValue('liveToken') == sha1(Tools::getValue('ad')._COOKIE_KEY_))))) { $live_edit = true; $output .= '
'; } else $output .= $display; } } // Return html string return ($live_edit ? '