[Backoffice] Add heartbeat ticker to extend sessions before they expi…

…re. Fixes #101

app/config/parameters.yml.local

@@ -0,0 +1,17 @@
+# This file is auto-generated during the composer install
+parameters:
+    database_driver: pdo_mysql
+    database_host: 192.168.0.184
+    database_port: null
+    database_name: clastic
+    database_user: clastic
+    database_password: clastic
+    mailer_transport: smtp
+    mailer_host: 127.0.0.1
+    mailer_user: null
+    mailer_password: null
+    locale: en
+    secret: ThisTokenIsNotSoSecretChangeIt
+    debug_toolbar: true
+    debug_redirects: false
+    use_assetic_controller: true

app/config/security.yml

@@ -20,4 +20,5 @@ security:
         - { path: ^/admin/login$, role: IS_AUTHENTICATED_ANONYMOUSLY }
         - { path: ^/admin/register, role: IS_AUTHENTICATED_ANONYMOUSLY }
         - { path: ^/admin/resetting, role: IS_AUTHENTICATED_ANONYMOUSLY }
+        - { path: _heartbeat$, role: IS_AUTHENTICATED_ANONYMOUSLY }
         - { path: ^/admin/, role: ROLE_ADMIN }

src/Clastic/BackofficeBundle/Controller/HeartbeatController.php

@@ -0,0 +1,33 @@
+<?php
+
+/**
+ * This file is part of the Clastic package.
+ *
+ * (c) Dries De Peuter <dries@nousefreak.be>
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace Clastic\BackofficeBundle\Controller;
+
+use Symfony\Bundle\FrameworkBundle\Controller\Controller;
+use Symfony\Component\HttpFoundation\JsonResponse;
+
+/**
+ * HeartBeatController.
+ *
+ * @author Dries De Peuter <dries@nousefreak.be>
+ */
+class HeartbeatController extends Controller
+{
+    /**
+     * @return Response
+     */
+    public function tickAction()
+    {
+        $maxlifetime = ini_get('session.gc_maxlifetime');
+
+        return new JsonResponse([
+            'lifetime' => $maxlifetime,
+        ]);
+    }
+}

src/Clastic/BackofficeBundle/Resources/config/routing.xml

@@ -4,6 +4,10 @@
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://symfony.com/schema/routing http://symfony.com/schema/routing/routing-1.0.xsd">
 
+    <route id="clastic_backoffice_heartbeat" path="/_heartbeat">
+        <default key="_controller">ClasticBackofficeBundle:Heartbeat:tick</default>
+    </route>
+
     <import resource="@ClasticUserBundle/Resources/config/routing_backoffice.xml"/>
     <import resource="@ClasticNodeBundle/Resources/config/routing_backoffice.xml"/>
 

src/Clastic/BackofficeBundle/Resources/public/scripts/heartbeat.js

@@ -0,0 +1,17 @@
+'use strict';
+
+(function(){
+    var tickUrl = '/admin/_heartbeat';
+
+    $.ajax(tickUrl, {
+        success: function (data) {
+            setupHeartbeat(data.lifetime);
+        }
+    });
+
+    var setupHeartbeat = function (timeout) {
+        window.setInterval(function() {
+            $.ajax(tickUrl);
+        }, timeout * 900);
+    };
+})();