1
|
|
|
<?php |
2
|
|
|
|
3
|
|
|
declare(strict_types=1); |
4
|
|
|
|
5
|
|
|
namespace Chubbyphp\Cors; |
6
|
|
|
|
7
|
|
|
use Psr\Http\Message\ResponseFactoryInterface; |
8
|
|
|
use Psr\Http\Message\ResponseInterface; |
9
|
|
|
use Psr\Http\Message\ServerRequestInterface; |
10
|
|
|
use Psr\Http\Server\MiddlewareInterface; |
11
|
|
|
use Psr\Http\Server\RequestHandlerInterface; |
12
|
|
|
|
13
|
|
|
final class CorsMiddleware implements MiddlewareInterface |
14
|
|
|
{ |
15
|
|
|
/** |
16
|
|
|
* @var ResponseFactoryInterface |
17
|
|
|
*/ |
18
|
|
|
private $responseFactory; |
19
|
|
|
|
20
|
|
|
/** |
21
|
|
|
* @var string[] |
22
|
|
|
*/ |
23
|
|
|
private $allowOrigin; |
24
|
|
|
|
25
|
|
|
/** |
26
|
|
|
* @var string[] |
27
|
|
|
*/ |
28
|
|
|
private $allowMethods; |
29
|
|
|
|
30
|
|
|
/** |
31
|
|
|
* @var string[] |
32
|
|
|
*/ |
33
|
|
|
private $allowHeaders; |
34
|
|
|
|
35
|
|
|
/** |
36
|
|
|
* @var bool |
37
|
|
|
*/ |
38
|
|
|
private $allowCredentials; |
39
|
|
|
|
40
|
|
|
/** |
41
|
|
|
* @var int |
42
|
|
|
*/ |
43
|
|
|
private $maxAge; |
44
|
|
|
|
45
|
|
|
/** |
46
|
|
|
* @param ResponseFactoryInterface $responseFactory |
47
|
|
|
* @param string[] $allowHeaders |
48
|
|
|
* @param string[] $allowMethods |
49
|
|
|
* @param string[] $allowOrigin |
50
|
|
|
* @param bool $allowCredentials |
51
|
|
|
* @param int $maxAge |
52
|
|
|
*/ |
53
|
4 |
|
public function __construct( |
54
|
|
|
ResponseFactoryInterface $responseFactory, |
55
|
|
|
array $allowOrigin, |
56
|
|
|
array $allowMethods, |
57
|
|
|
array $allowHeaders, |
58
|
|
|
bool $allowCredentials = false, |
59
|
|
|
int $maxAge = 600 |
60
|
|
|
) { |
61
|
4 |
|
$this->responseFactory = $responseFactory; |
62
|
4 |
|
$this->allowOrigin = $allowOrigin; |
63
|
4 |
|
$this->allowMethods = $allowMethods; |
64
|
4 |
|
$this->allowHeaders = $allowHeaders; |
65
|
4 |
|
$this->allowCredentials = $allowCredentials; |
66
|
4 |
|
$this->maxAge = $maxAge; |
67
|
4 |
|
} |
68
|
|
|
|
69
|
|
|
/** |
70
|
|
|
* @param ServerRequestInterface $request |
71
|
|
|
* @param RequestHandlerInterface $handler |
72
|
|
|
* |
73
|
|
|
* @return ResponseInterface |
74
|
|
|
*/ |
75
|
4 |
|
public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface |
76
|
|
|
{ |
77
|
4 |
|
if ('OPTIONS' === strtoupper($request->getMethod())) { |
78
|
3 |
|
return $this->responseFactory->createResponse(204) |
79
|
3 |
|
->withHeader('Access-Control-Allow-Origin', $this->getAllowOrigin($request)) |
80
|
3 |
|
->withHeader('Access-Control-Allow-Methods', implode(', ', $this->allowMethods)) |
81
|
3 |
|
->withHeader('Access-Control-Allow-Headers', implode(', ', $this->allowHeaders)) |
82
|
3 |
|
->withHeader('Access-Control-Allow-Credentials', $this->allowCredentials ? 'true' : 'false') |
83
|
3 |
|
->withHeader('Access-Control-Max-Age', (string) $this->maxAge) |
84
|
|
|
; |
85
|
|
|
} |
86
|
|
|
|
87
|
1 |
|
return $handler->handle($request) |
88
|
1 |
|
->withHeader('Access-Control-Allow-Origin', $this->getAllowOrigin($request)) |
89
|
1 |
|
->withHeader('Access-Control-Allow-Credentials', $this->allowCredentials ? 'true' : 'false') |
90
|
|
|
; |
91
|
|
|
} |
92
|
|
|
|
93
|
|
|
/** |
94
|
|
|
* @param ServerRequestInterface $request |
95
|
|
|
* |
96
|
|
|
* @return string |
97
|
|
|
*/ |
98
|
4 |
|
private function getAllowOrigin(ServerRequestInterface $request): string |
99
|
|
|
{ |
100
|
4 |
|
if ('' === $origin = $request->getHeaderLine('Origin')) { |
101
|
1 |
|
return ''; |
102
|
|
|
} |
103
|
|
|
|
104
|
3 |
|
if (false === $index = array_search($origin, $this->allowOrigin, true)) { |
105
|
1 |
|
return ''; |
106
|
|
|
} |
107
|
|
|
|
108
|
2 |
|
return $this->allowOrigin[$index]; |
109
|
|
|
} |
110
|
|
|
} |
111
|
|
|
|