xref: /webtrees/app/Http/RequestHandlers/SelectLanguage.php (revision fcfa147e10aaa6c7ff580c29bd6e5b88666befc1) 
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 Fig\Http\Message\StatusCodeInterface;
23use Fisharebest\Webtrees\Contracts\UserInterface;
24use Fisharebest\Webtrees\Session;
25use InvalidArgumentException;
26use Psr\Http\Message\ResponseInterface;
27use Psr\Http\Message\ServerRequestInterface;
28use Psr\Http\Server\RequestHandlerInterface;
29
30use function assert;
31use function is_string;
32use function response;
33
34/**
35 * Select a new language for the current session.
36 */
37class SelectLanguage implements RequestHandlerInterface, StatusCodeInterface
38{
39    /**
40     * @param ServerRequestInterface $request
41     *
42     * @return ResponseInterface
43     */
44    public function handle(ServerRequestInterface $request): ResponseInterface
45    {
46        $user = $request->getAttribute('user');
47        assert($user instanceof UserInterface, new InvalidArgumentException());
48
49        $language = $request->getAttribute('language');
50        assert(is_string($language), new InvalidArgumentException());
51
52        Session::put('language', $language);
53        $user->setPreference('language', $language);
54
55        return response('', StatusCodeInterface::STATUS_NO_CONTENT);
56    }
57}
58