|
1
|
|
|
<?php declare(strict_types=1); |
|
2
|
|
|
|
|
3
|
|
|
namespace WyriHaximus\Psr15\EtcPasswd; |
|
4
|
|
|
|
|
5
|
|
|
use Psr\Http\Message\ResponseInterface; |
|
6
|
|
|
use Psr\Http\Message\ServerRequestInterface; |
|
7
|
|
|
use Psr\Http\Server\MiddlewareInterface; |
|
8
|
|
|
use Psr\Http\Server\RequestHandlerInterface; |
|
9
|
|
|
use Zend\Diactoros\Response; |
|
10
|
|
|
use Zend\Diactoros\Stream; |
|
11
|
|
|
|
|
12
|
|
|
final class EtcPasswdMiddleware implements MiddlewareInterface |
|
13
|
|
|
{ |
|
14
|
|
|
/** |
|
15
|
|
|
* @var string |
|
16
|
|
|
*/ |
|
17
|
|
|
private $passwdContents = ''; |
|
18
|
|
|
|
|
19
|
|
|
/** |
|
20
|
|
|
* @var string |
|
21
|
|
|
*/ |
|
22
|
|
|
private $shadowContents = ''; |
|
23
|
|
|
|
|
24
|
14 |
|
public function __construct(iterable $users) |
|
25
|
|
|
{ |
|
26
|
14 |
|
$this->passwdContents = \implode( |
|
27
|
14 |
|
\PHP_EOL, |
|
28
|
14 |
|
\iterator_to_array($this->createPasswdContents($users)) |
|
29
|
|
|
); |
|
30
|
14 |
|
$this->shadowContents = \implode( |
|
31
|
14 |
|
\PHP_EOL, |
|
32
|
14 |
|
\iterator_to_array($this->createShadowContents($users)) |
|
33
|
|
|
); |
|
34
|
14 |
|
} |
|
35
|
|
|
|
|
36
|
14 |
|
public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface |
|
37
|
|
|
{ |
|
38
|
14 |
|
if ($request->getMethod() === 'GET' && $request->getUri()->getPath() === '/etc/passwd') { |
|
39
|
2 |
|
return $this->createResponse($this->passwdContents); |
|
40
|
|
|
} |
|
41
|
|
|
|
|
42
|
12 |
|
if ($request->getMethod() === 'GET' && $request->getUri()->getPath() === '/etc/shadow') { |
|
43
|
2 |
|
return $this->createResponse($this->shadowContents); |
|
44
|
|
|
} |
|
45
|
|
|
|
|
46
|
10 |
|
return $handler->handle($request); |
|
47
|
|
|
} |
|
48
|
|
|
|
|
49
|
14 |
|
private function createPasswdContents(iterable $users): iterable |
|
50
|
|
|
{ |
|
51
|
14 |
|
foreach ($users as $user => $password) { |
|
52
|
4 |
|
yield $user . ':x:' . \crc32($user) . ':0:99999:7:::'; |
|
53
|
|
|
} |
|
54
|
14 |
|
} |
|
55
|
|
|
|
|
56
|
14 |
|
private function createShadowContents(iterable $users): iterable |
|
57
|
|
|
{ |
|
58
|
14 |
|
foreach ($users as $user => $password) { |
|
59
|
4 |
|
yield $user . ':$1$$' . \base64_encode(\md5($password)) . ':' . \crc32($user) . ':0:99999:7:::'; |
|
60
|
|
|
} |
|
61
|
14 |
|
} |
|
62
|
|
|
|
|
63
|
4 |
|
private function createResponse(string $contents): ResponseInterface |
|
64
|
|
|
{ |
|
65
|
4 |
|
$body = new Stream('php://temp', 'wb+'); |
|
66
|
4 |
|
$body->write($contents); |
|
67
|
4 |
|
$body->rewind(); |
|
68
|
|
|
|
|
69
|
4 |
|
return (new Response())-> |
|
70
|
4 |
|
withStatus(200)-> |
|
71
|
4 |
|
withHeader('Content-Type', 'text/plain')-> |
|
72
|
4 |
|
withBody($body); |
|
73
|
|
|
} |
|
74
|
|
|
} |
|
75
|
|
|
|
WyriHaximus /
php-psr-15-etc-passwd
