function fn_magiczoom_install()
{
    $moduleDirectory = str_replace(array("//", "\\"), array("/", "/"), Registry::get('config.dir.addons') . '/magiczoom');
    $cancel = false;
    if (!defined('PRODUCT_VERSION') || version_compare(PRODUCT_VERSION, '4.0.0', '<')) {
        $cancel = true;
        if (!fn_notification_exists('E', 'magiczoom_module_version_notification')) {
            $message = "<br/><span style=\"font-size: 16px; line-height: 20px; margin-top: 5px; display: block;\">This Magic Zoom module is intended only for CS Cart Version 4 and above." . "<br/>Your version of CS Cart is " . PRODUCT_VERSION . "</span>";
            fn_set_notification('E', __('error'), $message, true, 'magiczoom_module_version_notification');
        }
    }
    if ($cancel) {
        $args = func_get_args();
        if (!empty($args)) {
            fn_redirect("addons.manage");
        }
        return;
    }
    //fix url's in css files
    $cancel = fn_magiczoom_fix_css();
    if ($cancel) {
        $args = func_get_args();
        if (!empty($args)) {
            fn_redirect("addons.manage");
        }
        return;
    }
    //NOTE: fix the order in which modules call
    $magicAddons = db_get_fields("SELECT addon FROM ?:addons WHERE addon LIKE 'magic%'");
    if (!empty($magicAddons)) {
        $magicAddonsData = array();
        foreach ($magicAddons as $addon) {
            $magicAddonsData[$addon] = db_get_row("SELECT * FROM ?:addons WHERE addon='{$addon}'");
            db_query("DELETE FROM ?:addons WHERE addon='{$addon}'");
        }
        if (isset($magicAddonsData['magiczoom'])) {
            db_query("INSERT INTO ?:addons ?e", $magicAddonsData['magiczoom']);
            unset($magicAddonsData['magiczoom']);
        }
        foreach ($magicAddonsData as $addon => $data) {
            db_query("INSERT INTO ?:addons ?e", $data);
        }
    }
    fn_magiczoom_send_stat('install');
}

 public function delete($id)
 {
     $data = array();
     $status = Response::STATUS_BAD_REQUEST;
     if (LLanguages::deleteLanguages(array($id))) {
         $status = Response::STATUS_NO_CONTENT;
     } elseif (!fn_notification_exists('extra', 'language_is_default')) {
         $status = Response::STATUS_NOT_FOUND;
     }
     return array('status' => $status, 'data' => $data);
 }

 public function update($id, $params)
 {
     $data = array();
     $status = Response::STATUS_BAD_REQUEST;
     unset($params['category_id']);
     $lang_code = $this->safeGet($params, 'lang_code', DEFAULT_LANGUAGE);
     $category_id = fn_update_category($params, $id, $lang_code);
     $this->prepareImages($params, $id);
     $updated = fn_attach_image_pairs('category_main', 'category', $id, DESCR_SL);
     if ($category_id || $updated) {
         if ($updated && fn_notification_exists('extra', '404')) {
             fn_delete_notification('404');
         }
         $status = Response::STATUS_OK;
         $data = array('category_id' => $id);
     }
     return array('status' => $status, 'data' => $data);
 }

//.........这里部分代码省略.........
    }
    if (!empty($auth['this_login']) && Registry::ifGet($auth['this_login'], 'N') === 'Y') {
        fn_set_notification('E', __('error'), __(ACCOUNT_TYPE . LOGIN_STATUS_USER_DISABLED));
        $status = CONTROLLER_STATUS_DENIED;
    }
    // [Block manager]
    // block manager is disabled for vendors.
    if (!(fn_allowed_for('MULTIVENDOR') && Registry::get('runtime.company_id') || fn_allowed_for('ULTIMATE') && !Registry::get('runtime.company_id'))) {
        if (fn_check_permissions('block_manager', 'manage', 'admin')) {
            $dynamic_object = SchemesManager::getDynamicObject($_REQUEST['dispatch'], $area, $_REQUEST);
            if (!empty($dynamic_object)) {
                if ($area == 'A' && Registry::get('runtime.mode') != 'add' && !empty($_REQUEST[$dynamic_object['key']])) {
                    $object_id = $_REQUEST[$dynamic_object['key']];
                    $location = Location::instance()->get($dynamic_object['customer_dispatch'], $dynamic_object, CART_LANGUAGE);
                    if (!empty($location) && $location['is_default'] != 1) {
                        $params = array('dynamic_object' => array('object_type' => $dynamic_object['object_type'], 'object_id' => $object_id), $dynamic_object['key'] => $object_id, 'manage_url' => Registry::get('config.current_url'));
                        Registry::set('navigation.tabs.blocks', array('title' => __('layouts'), 'href' => 'block_manager.manage_in_tab?' . http_build_query($params), 'ajax' => true));
                    }
                }
            }
        }
    }
    // [/Block manager]
    // Redirect if controller returned successful/redirect status only
    if (in_array($status, array(CONTROLLER_STATUS_OK, CONTROLLER_STATUS_REDIRECT)) && !empty($_REQUEST['redirect_url']) && !$external) {
        $redirect_url = $_REQUEST['redirect_url'];
    }
    // If controller returns "Redirect" status, check if redirect url exists
    if ($status == CONTROLLER_STATUS_REDIRECT && empty($redirect_url)) {
        $status = CONTROLLER_STATUS_NO_PAGE;
    }
    // In backend show "changes saved" notification
    if ($area == 'A' && $_SERVER['REQUEST_METHOD'] == 'POST' && in_array($status, array(CONTROLLER_STATUS_OK, CONTROLLER_STATUS_REDIRECT))) {
        if (strpos($mode, 'update') !== false && $mode != 'update_status' && $mode != 'update_mode' && !fn_notification_exists('extra', 'demo_mode') && !fn_notification_exists('type', 'E')) {
            fn_set_notification('N', __('notice'), __('text_changes_saved'), 'I', 'changes_saved');
        }
    }
    // Attach params and redirect if needed
    if (in_array($status, array(CONTROLLER_STATUS_OK, CONTROLLER_STATUS_REDIRECT)) && !empty($redirect_url)) {
        if (!isset($_REQUEST['return_to_list'])) {
            $params = array('page', 'selected_section', 'active_tab');
            $url_params = array();
            foreach ($params as $param) {
                if (!empty($_REQUEST[$param])) {
                    $url_params[$param] = $_REQUEST[$param];
                }
            }
            if (!empty($url_params)) {
                $redirect_url = fn_link_attach($redirect_url, http_build_query($url_params));
            }
        }
        if (!isset($external)) {
            $external = false;
        }
        if (!isset($permanent)) {
            $permanent = false;
        }
        fn_redirect($redirect_url, $external, $permanent);
    }
    if (!$view->getTemplateVars('content_tpl') && $status == CONTROLLER_STATUS_OK) {
        // FIXME
        $status = CONTROLLER_STATUS_NO_PAGE;
    }
    if ($status != CONTROLLER_STATUS_OK) {
        if ($status == CONTROLLER_STATUS_NO_PAGE) {
            if ($area == 'A' && empty($auth['user_id'])) {

    list($cart_products, $product_groups) = fn_calculate_cart_content($cart, $auth, Registry::get('settings.General.estimate_shipping_cost') == 'Y' ? 'A' : 'S', true, 'F', true);
    fn_gather_additional_products_data($cart_products, array('get_icon' => true, 'get_detailed' => true, 'get_options' => true, 'get_discounts' => false));
    fn_add_breadcrumb(__('cart_contents'));
    fn_update_payment_surcharge($cart, $auth);
    $cart_products = array_reverse($cart_products, true);
    Tygh::$app['view']->assign('cart_products', $cart_products);
    Tygh::$app['view']->assign('product_groups', $cart['product_groups']);
    if (fn_allowed_for('MULTIVENDOR')) {
        Tygh::$app['view']->assign('take_surcharge_from_vendor', fn_take_payment_surcharge_from_vendor($cart['products']));
    }
    // Check if any outside checkout is enbaled
    if (fn_cart_is_empty($cart) != true) {
        $checkout_buttons = fn_get_checkout_payment_buttons($cart, $cart_products, $auth);
        if (!empty($checkout_buttons)) {
            Tygh::$app['view']->assign('checkout_add_buttons', $checkout_buttons, false);
        } elseif (empty($payment_methods) && !fn_notification_exists('extra', 'no_payment_notification')) {
            fn_set_notification('W', __('notice'), __('cannot_proccess_checkout_without_payment_methods'));
        }
    }
    // All checkout steps
} elseif ($mode == 'checkout') {
    if (Registry::get('settings.General.min_order_amount_type') == 'only_products' && Registry::get('settings.General.min_order_amount') > $cart['subtotal']) {
        Tygh::$app['view']->assign('value', Registry::get('settings.General.min_order_amount'));
        $min_amount = Tygh::$app['view']->fetch('common/price.tpl');
        fn_set_notification('W', __('notice'), __('text_min_products_amount_required') . ' ' . $min_amount);
        return array(CONTROLLER_STATUS_REDIRECT, 'checkout.cart');
    }
    fn_add_breadcrumb(__('checkout'));
    $profile_fields = fn_get_profile_fields('O');
    // Display steps
    $display_steps = array('step_one' => true, 'step_two' => true, 'step_three' => true, 'step_four' => true);

/**
 * Pre/Post coupon checking/applying
 *
 * @param array $cart cart
 * @param boolean $initial_check true for pre-check, false - for post-check
 * @param array $applied_promotions list of applied promotions
 * @return boolean true if coupon is applied, false - otherwise
 */
function fn_promotion_check_coupon(&$cart, $initial_check, $applied_promotions = array())
{
    $result = true;
    // Pre-check: find if coupon is already used or only single coupon is allowed
    if ($initial_check == true) {
        fn_set_hook('pre_promotion_check_coupon', $cart['pending_coupon'], $cart);
        if (!empty($cart['coupons'][$cart['pending_coupon']])) {
            $_SESSION['promotion_notices']['promotion']['messages'][] = 'coupon_already_used';
            unset($cart['pending_coupon']);
            $result = false;
        } elseif (Registry::get('settings.General.use_single_coupon') == 'Y' && sizeof($cart['coupons']) > 0) {
            $_SESSION['promotion_notices']['promotion']['messages'][] = 'single_coupon_is_allowed';
            unset($cart['pending_coupon']);
            $result = false;
        } else {
            $cart['coupons'][$cart['pending_coupon']] = true;
        }
        // Post-check: check if coupon was applied successfully
    } else {
        if (!empty($cart['pending_coupon'])) {
            if (!empty($applied_promotions)) {
                $params = array('active' => true, 'coupon_code' => !empty($cart['pending_original_coupon']) ? $cart['pending_original_coupon'] : $cart['pending_coupon'], 'promotion_id' => array_keys($applied_promotions));
                list($coupon) = fn_get_promotions($params);
            }
            if (empty($coupon)) {
                if (!fn_notification_exists('extra', 'error_coupon_already_used')) {
                    $_SESSION['promotion_notices']['promotion']['messages'][] = 'no_such_coupon';
                }
                unset($cart['coupons'][$cart['pending_coupon']]);
                $result = false;
            } else {
                $cart['coupons'][$cart['pending_coupon']] = array_keys($coupon);
                fn_set_hook('promotion_check_coupon', $cart['pending_coupon'], $cart);
            }
            unset($cart['pending_coupon'], $cart['pending_original_coupon']);
        }
    }
    return $result;
}

 public function delete($id)
 {
     $data = array();
     $status = Response::STATUS_BAD_REQUEST;
     if (fn_delete_user($id)) {
         $status = Response::STATUS_OK;
         $data['message'] = 'Ok';
     } elseif (!fn_notification_exists('extra', 'user_delete_no_permissions')) {
         $status = Response::STATUS_NOT_FOUND;
     }
     return array('status' => $status, 'data' => $data);
 }

    if (!isset($auth['first_expire_check'])) {
        $auth['first_expire_check'] = true;
    }
    // Make user change the password if:
    // - password has expired
    // - this is the first admin's login and change_admin_password_on_first_login is enabled
    // - this is the first vendor admin's login
    if (empty($auth['password_change_timestamp']) && (Registry::get('settings.Security.change_admin_password_on_first_login') == 'Y' || !empty($auth['company_id'])) || $expire && $time_diff >= $expire) {
        $_SESSION['auth']['forced_password_change'] = true;
        if ($auth['first_expire_check']) {
            // we can redirect only on first check, else we can corrupt some admin's working processes ( such as ajax requests
            fn_delete_notification('insecure_password');
            $return_url = !empty($_REQUEST['return_url']) ? $_REQUEST['return_url'] : Registry::get('config.current_url');
            return array(CONTROLLER_STATUS_REDIRECT, "auth.password_change?return_url=" . urlencode($return_url));
        } else {
            if (!fn_notification_exists('E', 'password_expire')) {
                fn_set_notification('E', fn_get_lang_var('warning'), str_replace('[link]', fn_url('profiles.update', 'A'), fn_get_lang_var('error_password_expired_change')), true, 'password_expire');
            }
        }
    } else {
        $auth['first_expire_check'] = false;
    }
}
if ($_SERVER['REQUEST_METHOD'] == 'POST') {
    return;
}
// Get base menu
$menues = fn_get_schema('menu', 'menu', 'xml');
if (fn_check_suppliers_functionality()) {
    if (PRODUCT_TYPE == 'MULTIVENDOR') {
        $menues .= fn_get_schema('menu', 'menu_mve', 'xml');

 /**
  * Sends request
  *
  * Method does not return result. It's exit from script.
  */
 public function send()
 {
     if (fn_notification_exists('extra', 'company_access_denied')) {
         $this->status = Response::STATUS_FORBIDDEN;
     } elseif (fn_notification_exists('extra', '404')) {
         $this->status = Response::STATUS_NOT_FOUND;
     }
     if ($this->status == self::STATUS_UNAUTHORIZED) {
         header('WWW-Authenticate: Basic realm="User email/API key"');
     }
     $this->sendStatusCode($this->status);
     if ($this->status == self::STATUS_NO_CONTENT) {
         exit;
     }
     header('Content-type: ' . $this->content_type);
     if (!self::isSuccessStatus($this->status)) {
         $messages = array();
         if (is_array($this->body)) {
             if (!empty($this->body['message'])) {
                 $messages = array($this->body['message']);
             } else {
                 $messages = $this->body;
             }
         } elseif (!empty($this->body)) {
             $messages = array($this->body);
         }
         $this->body = array();
         $codes = self::getAvailableCodes();
         $this->body['message'] = $codes[$this->status];
         $notifications = fn_get_notifications();
         foreach ($notifications as $notice) {
             if ($notice['type'] == 'E') {
                 $messages[] = $notice['message'];
             }
         }
         foreach ($notifications as $notice) {
             if ($notice['type'] == 'W') {
                 $messages[] = $notice['message'];
             }
         }
         if (!empty($messages)) {
             $this->body['message'] .= ': ' . implode('. ', $messages);
         }
         $this->body['status'] = $this->status;
     }
     $body = FormatManager::instance()->encode($this->body, $this->content_type);
     echo $body;
     exit;
 }

 public function delete($id)
 {
     $data = array();
     $status = Response::STATUS_BAD_REQUEST;
     if (fn_delete_company($id)) {
         $status = Response::STATUS_NO_CONTENT;
     } elseif (!fn_notification_exists('extra', 'company_has_orders')) {
         $status = Response::STATUS_NOT_FOUND;
     }
     return array('status' => $status, 'data' => $data);
 }