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1<?php
2
3/**
4 * This file is part of the MADIS - RGPD Management application.
5 *
6 * @copyright Copyright (c) 2018-2019 Soluris - Solutions Numériques Territoriales Innovantes
7 *
8 * This program is free software: you can redistribute it and/or modify
9 * it under the terms of the GNU Affero General Public License as published by
10 * the Free Software Foundation, either version 3 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU Affero General Public License for more details.
17 *
18 * You should have received a copy of the GNU Affero General Public License
19 * along with this program. If not, see <https://www.gnu.org/licenses/>.
20 */
21
22declare(strict_types=1);
23
24namespace App\Application\Symfony\EventSubscriber\Kernel;
25
26use Symfony\Component\EventDispatcher\EventSubscriberInterface;
27use Symfony\Component\HttpKernel\Event\RequestEvent;
28use Symfony\Component\HttpKernel\KernelEvents;
29
30/**
31 * Class IdleSubscriber
32 * Check user idle time.
33 * If user is idle more than accepted time, invalidate his session.
34 */
35class IdleSubscriber implements EventSubscriberInterface
36{
37    /**
38     * @var int
39     */
40    private $expirationTime;
41
42    /**
43     * IdleSubscriber constructor.
44     *
45     * @param int $expirationTime Time in seconds to define idle
46     */
47    public function __construct(int $expirationTime)
48    {
49        $this->expirationTime = $expirationTime;
50    }
51
52    public static function getSubscribedEvents()
53    {
54        return [
55            KernelEvents::REQUEST => [
56                ['onKernelRequest', 9],
57            ],
58        ];
59    }
60
61    /**
62     * OnKernelRequest check idle since last Request.
63     * If idle is over, then invalidate session.
64     */
65    public function onKernelRequest(RequestEvent $event): void
66    {
67        if (!$event->isMasterRequest()) {
68            return;
69        }
70
71        $request = $event->getRequest();
72        $session = $request->getSession();
73
74        $session->start();
75        $metaData       = $session->getMetadataBag();
76        $timeDifference = time() - $metaData->getLastUsed();
77
78        if ($timeDifference > $this->expirationTime) {
79            $session->invalidate();
80        }
81    }
82}