xref: /webtrees/app/Http/Middleware/BaseUrl.php (revision 1a218474113038005e50986fff24ebcbd58554ff)
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 */
17declare(strict_types=1);
18
19namespace Fisharebest\Webtrees\Http\Middleware;
20
21use Psr\Http\Message\ResponseInterface;
22use Psr\Http\Message\ServerRequestInterface;
23use Psr\Http\Server\MiddlewareInterface;
24use Psr\Http\Server\RequestHandlerInterface;
25
26use function explode;
27use function parse_url;
28use function rtrim;
29
30use const PHP_URL_HOST;
31use const PHP_URL_PORT;
32use const PHP_URL_SCHEME;
33
34/**
35 * Middleware to set the base URL.
36 */
37class BaseUrl implements MiddlewareInterface
38{
39    /**
40     * @param ServerRequestInterface  $request
41     * @param RequestHandlerInterface $handler
42     *
43     * @return ResponseInterface
44     */
45    public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface
46    {
47        // The request URL, as auto-detected from the environment.
48        $request_url = $request->getUri();
49
50        // The base URL, as specified in the configuration file.
51        $base_url = $request->getAttribute('base_url', '');
52
53        if ($base_url === '') {
54            // Guess the base URL from the request URL.
55            $base_url = rtrim(explode('index.php', (string) $request_url)[0], '/');
56            $request  = $request->withAttribute('base_url', $base_url);
57        } else {
58            // Update the request URL from the base URL.
59            $base_scheme = parse_url($base_url, PHP_URL_SCHEME) ?? 'http';
60            $base_host   = parse_url($base_url, PHP_URL_HOST) ?? 'localhost';
61            $base_port   = parse_url($base_url, PHP_URL_PORT);
62
63            $request_url = $request_url
64                ->withScheme($base_scheme)
65                ->withHost($base_host)
66                ->withPort($base_port === null ? null : (int) $base_port);
67
68            $request = $request->withUri($request_url);
69        }
70
71        return $handler->handle($request);
72    }
73}
74