create a listener for adding the cart cookie in the response object

core/lib/Thelia/Cart/CartTrait.php

@@ -97,7 +97,7 @@ trait CartTrait
     protected function createCart(Session $session)
     {
         $cart = new CartModel();
-        $cart->setToken($this->generateCookie());
+        $cart->setToken($this->generateCookie($session));
 
         if (null !== $customer = $session->getCustomerUser()) {
             $cart->setCustomer($customer);
@@ -120,7 +120,7 @@ trait CartTrait
      */
     protected function duplicateCart(EventDispatcherInterface $dispatcher, CartModel $cart, Session $session, Customer $customer = null)
     {
-        $newCart = $cart->duplicate($this->generateCookie(), $customer, $dispatcher);
+        $newCart = $cart->duplicate($this->generateCookie($session), $customer, $dispatcher);
         $session->setCart($newCart->getId());
 
         $cartEvent = new CartEvent($newCart);
@@ -130,11 +130,13 @@ trait CartTrait
         return $cartEvent->getCart();
     }
 
-    protected function generateCookie()
+    protected function generateCookie(Session $session)
     {
         $id = null;
         if (ConfigQuery::read("cart.session_only", 0) == 0) {
             $id = uniqid('', true);
+            $session->set('cart_use_cookie', $id);
+
             setcookie(
                 "thelia_cart",
                 $id,

core/lib/Thelia/Config/Resources/config.xml

@@ -96,6 +96,10 @@
         <service id="mailer" class="Thelia\Mailer\MailerFactory">
             <argument type="service" id="event_dispatcher"/>
         </service>
+
+        <service id="response.listener" class="Thelia\Core\EventListener\ResponseListener">
+            <tag name="kernel.event_subscriber"/>
+        </service>
     </services>
 
 </config>

core/lib/Thelia/Core/EventListener/ResponseListener.php

@@ -0,0 +1,84 @@
+<?php
+/*************************************************************************************/
+/*                                                                                   */
+/*      Thelia	                                                                     */
+/*                                                                                   */
+/*      Copyright (c) OpenStudio                                                     */
+/*      email : info@thelia.net                                                      */
+/*      web : http://www.thelia.net                                                  */
+/*                                                                                   */
+/*      This program is free software; you can redistribute it and/or modify         */
+/*      it under the terms of the GNU General Public License as published by         */
+/*      the Free Software Foundation; either version 3 of the License                */
+/*                                                                                   */
+/*      This program is distributed in the hope that it will be useful,              */
+/*      but WITHOUT ANY WARRANTY; without even the implied warranty of               */
+/*      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the                */
+/*      GNU General Public License for more details.                                 */
+/*                                                                                   */
+/*      You should have received a copy of the GNU General Public License            */
+/*	    along with this program. If not, see <http://www.gnu.org/licenses/>.         */
+/*                                                                                   */
+/*************************************************************************************/
+
+namespace Thelia\Core\EventListener;
+
+use Symfony\Component\EventDispatcher\EventSubscriberInterface;
+use Symfony\Component\HttpFoundation\Cookie;
+use Symfony\Component\HttpKernel\Event\FilterResponseEvent;
+use Symfony\Component\HttpKernel\KernelEvents;
+use Thelia\Model\ConfigQuery;
+
+
+/**
+ * Class ResponseListener
+ * @package Thelia\Core\EventListener
+ * @author Manuel Raynaud <mraynaud@openstudio.fr>
+ */
+class ResponseListener implements EventSubscriberInterface
+{
+
+    public function beforeResponse(FilterResponseEvent $event)
+    {
+        $session = $event->getRequest()->getSession();
+
+        if (null !== $id = $session->get("cart_use_cookie")) {
+            $response = $event->getResponse();
+            $response->headers->setCookie(new Cookie(
+                    "thelia_cart",
+                    $id,
+                    time()+ConfigQuery::read("cart.cookie_lifetime", 60*60*24*365),
+                    '/'
+            ));
+
+            $session->set("cart_use_cookie", null);
+        }
+    }
+
+    /**
+     * Returns an array of event names this subscriber wants to listen to.
+     *
+     * The array keys are event names and the value can be:
+     *
+     *  * The method name to call (priority defaults to 0)
+     *  * An array composed of the method name to call and the priority
+     *  * An array of arrays composed of the method names to call and respective
+     *    priorities, or 0 if unset
+     *
+     * For instance:
+     *
+     *  * array('eventName' => 'methodName')
+     *  * array('eventName' => array('methodName', $priority))
+     *  * array('eventName' => array(array('methodName1', $priority), array('methodName2'))
+     *
+     * @return array The event names to listen to
+     *
+     * @api
+     */
+    public static function getSubscribedEvents()
+    {
+        return [
+            KernelEvents::RESPONSE => ['beforeResponse', 128]
+        ];
+    }
+}