Completed
Push — master ( cd2ace...497209 )
by Oscar
02:39
created

Https::__invoke()   D

Complexity

Conditions 9
Paths 9

Size

Total Lines 26
Code Lines 13

Duplication

Lines 0
Ratio 0 %

Importance

Changes 0
Metric Value
dl 0
loc 26
rs 4.909
c 0
b 0
f 0
cc 9
eloc 13
nc 9
nop 3
1
<?php
2
3
namespace Psr7Middlewares\Middleware;
4
5
use Psr7Middlewares\Utils;
6
use Psr\Http\Message\ServerRequestInterface;
7
use Psr\Http\Message\ResponseInterface;
8
9
/**
10
 * Middleware to redirect to https protocol.
11
 */
12
class Https
13
{
14
    use Utils\RedirectTrait;
15
16
    const HEADER = 'Strict-Transport-Security';
17
18
    /**
19
     * @param int One year by default
20
     */
21
    private $maxAge = 31536000;
22
23
    /**
24
     * @param bool Whether include subdomains
25
     */
26
    private $includeSubdomains = false;
27
28
    /**
29
     * @param bool Whether check the headers "HTTP_X_FORWARDED_PROTO: https" or "HTTP_X_FORWARDED_PORT: 443"
30
     */
31
    private $checkHttpsForward = false;
32
33
    /**
34
     * Set basic config.
35
     */
36
    public function __construct()
37
    {
38
        $this->redirect(301);
39
    }
40
41
    /**
42
     * Configure the max-age HSTS in seconds.
43
     *
44
     * @param int $maxAge
45
     * 
46
     * @return self
47
     */
48
    public function maxAge($maxAge)
49
    {
50
        $this->maxAge = $maxAge;
51
52
        return $this;
53
    }
54
55
    /**
56
     * Configure the includeSubDomains HSTS directive.
57
     *
58
     * @param bool $includeSubdomains
59
     * 
60
     * @return self
61
     */
62
    public function includeSubdomains($includeSubdomains = true)
63
    {
64
        $this->includeSubdomains = $includeSubdomains;
65
66
        return $this;
67
    }
68
69
    /**
70
     * Configure whether check the following headers before redirect:
71
     * HTTP_X_FORWARDED_PROTO: https
72
     * HTTP_X_FORWARDED_PORT: 443
73
     *
74
     * @param bool $checkHttpsForward
75
     * 
76
     * @return self
77
     */
78
    public function checkHttpsForward($checkHttpsForward = true)
79
    {
80
        $this->checkHttpsForward = $checkHttpsForward;
81
82
        return $this;
83
    }
84
85
    /**
86
     * Execute the middleware.
87
     *
88
     * @param ServerRequestInterface $request
89
     * @param ResponseInterface      $response
90
     * @param callable               $next
91
     *
92
     * @return ResponseInterface
93
     */
94
    public function __invoke(ServerRequestInterface $request, ResponseInterface $response, callable $next)
95
    {
96
        $uri = $request->getUri();
97
98
        if (strtolower($uri->getScheme()) !== 'https') {
99
            $uri = $uri->withScheme('https')->withPort(443);
100
101
            if ($this->redirectStatus !== false && (!$this->checkHttpsForward || ($request->getHeaderLine('HTTP_X_FORWARDED_PROTO') !== 'https' && $request->getHeaderLine('HTTP_X_FORWARDED_PORT') !== '443'))) {
102
                return $this->getRedirectResponse($request, $uri, $response);
103
            }
104
105
            $request = $request->withUri($uri);
106
        }
107
108
        if (!empty($this->maxAge)) {
109
            $response = $response->withHeader(self::HEADER, sprintf('max-age=%d%s', $this->maxAge, $this->includeSubdomains ? ';includeSubDomains' : ''));
110
        }
111
112
        $response = $next($request, $response);
113
114
        if (Utils\Helpers::isRedirect($response)) {
115
            return $response->withHeader('Location', str_replace('http://', 'https://', $response->getHeaderLine('Location')));
116
        }
117
118
        return $response;
119
    }
120
}
121