|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
declare(strict_types=1); |
|
4
|
|
|
|
|
5
|
|
|
namespace Lit\Nimo\Middlewares; |
|
6
|
|
|
|
|
7
|
|
|
use Lit\Nimo\Handlers\CallableHandler; |
|
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
|
|
|
class MiddlewarePipe extends AbstractMiddleware |
|
14
|
|
|
{ |
|
15
|
|
|
/** |
|
16
|
|
|
* @var RequestHandlerInterface |
|
17
|
|
|
*/ |
|
18
|
|
|
protected $nextHandler; |
|
19
|
|
|
/** |
|
20
|
|
|
* @var MiddlewareInterface[] |
|
21
|
|
|
*/ |
|
22
|
|
|
protected $stack = []; |
|
23
|
|
|
protected $index; |
|
24
|
|
|
|
|
25
|
3 |
|
public function __construct() |
|
26
|
|
|
{ |
|
27
|
|
|
$this->nextHandler = CallableHandler::wrap(function (ServerRequestInterface $request) { |
|
28
|
2 |
|
return $this->loop($request); |
|
29
|
3 |
|
}); |
|
30
|
3 |
|
} |
|
31
|
|
|
|
|
32
|
|
|
|
|
33
|
|
|
/** |
|
34
|
|
|
* append $middleware |
|
35
|
|
|
* return $this |
|
36
|
|
|
* note this method would modify $this |
|
37
|
|
|
* |
|
38
|
|
|
* @param MiddlewareInterface $middleware |
|
39
|
|
|
* @return $this |
|
40
|
|
|
*/ |
|
41
|
1 |
|
public function append(MiddlewareInterface $middleware): MiddlewarePipe |
|
42
|
|
|
{ |
|
43
|
1 |
|
$this->stack[] = $middleware; |
|
44
|
1 |
|
return $this; |
|
45
|
|
|
} |
|
46
|
|
|
|
|
47
|
|
|
/** |
|
48
|
|
|
* prepend $middleware |
|
49
|
|
|
* return $this |
|
50
|
|
|
* note this method would modify $this |
|
51
|
|
|
* |
|
52
|
|
|
* @param MiddlewareInterface $middleware |
|
53
|
|
|
* @return $this |
|
54
|
|
|
*/ |
|
55
|
1 |
|
public function prepend(MiddlewareInterface $middleware): MiddlewarePipe |
|
56
|
|
|
{ |
|
57
|
1 |
|
array_unshift($this->stack, $middleware); |
|
58
|
1 |
|
return $this; |
|
59
|
|
|
} |
|
60
|
|
|
|
|
61
|
3 |
|
protected function main(): ResponseInterface |
|
62
|
|
|
{ |
|
63
|
3 |
|
$this->index = 0; |
|
64
|
|
|
|
|
65
|
3 |
|
return $this->loop($this->request); |
|
66
|
|
|
} |
|
67
|
|
|
|
|
68
|
|
|
/** |
|
69
|
|
|
* @param ServerRequestInterface $request |
|
70
|
|
|
* @return ResponseInterface |
|
71
|
|
|
*/ |
|
72
|
3 |
|
protected function loop(ServerRequestInterface $request): ResponseInterface |
|
73
|
|
|
{ |
|
74
|
3 |
|
if (!isset($this->stack[$this->index])) { |
|
75
|
3 |
|
return $this->delegate($request); |
|
76
|
|
|
} |
|
77
|
|
|
|
|
78
|
2 |
|
return $this->stack[$this->index++]->process($request, $this->nextHandler); |
|
79
|
|
|
} |
|
80
|
|
|
} |
|
81
|
|
|
|
LitPHP /
nimo
