xref: /webtrees/app/Http/RequestHandlers/SelectLanguage.php (revision 1e65345293efca3993945bfd7b2e1fdb9103d8bc) 
1<?php
2
3/**
4 * webtrees: online genealogy
5 * Copyright (C) 2019 webtrees development team
6 * This program is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program. If not, see <http://www.gnu.org/licenses/>.
16 */
17
18declare(strict_types=1);
19
20namespace Fisharebest\Webtrees\Http\RequestHandlers;
21
22use Fisharebest\Webtrees\Contracts\UserInterface;
23use Fisharebest\Webtrees\Session;
24use InvalidArgumentException;
25use Psr\Http\Message\ResponseInterface;
26use Psr\Http\Message\ServerRequestInterface;
27use Psr\Http\Server\RequestHandlerInterface;
28
29use function assert;
30use function is_string;
31use function response;
32
33/**
34 * Select a new language for the current session.
35 */
36class SelectLanguage implements RequestHandlerInterface
37{
38    /**
39     * @param ServerRequestInterface $request
40     *
41     * @return ResponseInterface
42     */
43    public function handle(ServerRequestInterface $request): ResponseInterface
44    {
45        $user = $request->getAttribute('user');
46        assert($user instanceof UserInterface, new InvalidArgumentException());
47
48        $language = $request->getAttribute('language');
49        assert(is_string($language), new InvalidArgumentException());
50
51        Session::put('language', $language);
52        $user->setPreference('language', $language);
53
54        return response();
55    }
56}
57