|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
|
|
4
|
|
|
namespace Noxlogic\RateLimitBundle\Util; |
|
5
|
|
|
|
|
6
|
|
|
use Noxlogic\RateLimitBundle\Annotation\RateLimit; |
|
7
|
|
|
use Symfony\Component\HttpFoundation\Request; |
|
8
|
|
|
|
|
9
|
|
|
class PathLimitProcessor |
|
10
|
|
|
{ |
|
11
|
|
|
private $pathLimits; |
|
12
|
|
|
|
|
13
|
13 |
|
function __construct(array $pathLimits) |
|
14
|
|
|
{ |
|
15
|
13 |
|
$this->pathLimits = $pathLimits; |
|
16
|
|
|
|
|
17
|
|
|
// Clean up any extra slashes from the config |
|
18
|
13 |
|
foreach ($this->pathLimits as &$pathLimit) { |
|
19
|
12 |
|
$pathLimit['path'] = trim($pathLimit['path'], '/'); |
|
20
|
13 |
|
} |
|
21
|
|
|
|
|
22
|
|
|
// Order the configs so that the most specific paths |
|
23
|
|
|
// are matched first |
|
24
|
13 |
|
usort($this->pathLimits, function($a, $b) { |
|
25
|
4 |
|
return substr_count($b['path'], '/') - substr_count($a['path'], '/'); |
|
26
|
13 |
|
}); |
|
27
|
13 |
|
} |
|
28
|
|
|
|
|
29
|
10 |
|
public function getRateLimit(Request $request) |
|
30
|
|
|
{ |
|
31
|
10 |
|
$path = trim(urldecode($request->getPathInfo()), '/'); |
|
32
|
10 |
|
$method = $request->getMethod(); |
|
33
|
|
|
|
|
34
|
10 |
|
foreach ($this->pathLimits as $pathLimit) { |
|
35
|
9 |
|
if ($this->requestMatched($pathLimit, $path, $method)) { |
|
36
|
8 |
|
return new RateLimit(array( |
|
37
|
8 |
|
'limit' => $pathLimit['limit'], |
|
38
|
8 |
|
'period' => $pathLimit['period'], |
|
39
|
8 |
|
'methods' => $pathLimit['methods'] |
|
40
|
8 |
|
)); |
|
41
|
|
|
} |
|
42
|
2 |
|
} |
|
43
|
|
|
|
|
44
|
2 |
|
return null; |
|
45
|
|
|
} |
|
46
|
|
|
|
|
47
|
3 |
|
public function getMatchedPath(Request $request) |
|
48
|
|
|
{ |
|
49
|
3 |
|
$path = trim($request->getPathInfo(), '/'); |
|
50
|
3 |
|
$method = $request->getMethod(); |
|
51
|
|
|
|
|
52
|
3 |
|
foreach ($this->pathLimits as $pathLimit) { |
|
53
|
3 |
|
if ($this->requestMatched($pathLimit, $path, $method)) { |
|
54
|
3 |
|
return $pathLimit['path']; |
|
55
|
|
|
} |
|
56
|
|
|
} |
|
57
|
|
|
|
|
58
|
|
|
return ''; |
|
59
|
|
|
} |
|
60
|
|
|
|
|
61
|
12 |
|
private function requestMatched($pathLimit, $path, $method) |
|
62
|
|
|
{ |
|
63
|
12 |
|
return $this->methodMatched($pathLimit['methods'], $method) |
|
64
|
12 |
|
&& $this->pathMatched($pathLimit['path'], $path); |
|
65
|
|
|
} |
|
66
|
|
|
|
|
67
|
12 |
|
private function methodMatched(array $expectedMethods, $method) |
|
68
|
|
|
{ |
|
69
|
12 |
|
foreach ($expectedMethods as $expectedMethod) { |
|
70
|
12 |
|
if ($expectedMethod === '*' || $expectedMethod === $method) { |
|
71
|
12 |
|
return true; |
|
72
|
|
|
} |
|
73
|
2 |
|
} |
|
74
|
|
|
|
|
75
|
|
|
return false; |
|
76
|
|
|
} |
|
77
|
|
|
|
|
78
|
12 |
|
private function pathMatched($expectedPath, $path) |
|
79
|
|
|
{ |
|
80
|
12 |
|
$expectedParts = explode('/', $expectedPath); |
|
81
|
12 |
|
$actualParts = explode('/', $path); |
|
82
|
|
|
|
|
83
|
12 |
|
if (sizeof($actualParts) < sizeof($expectedParts)) { |
|
84
|
1 |
|
return false; |
|
85
|
|
|
} |
|
86
|
|
|
|
|
87
|
11 |
|
foreach ($expectedParts as $key => $value) { |
|
88
|
11 |
|
if ($value !== $actualParts[$key]) { |
|
89
|
|
|
return false; |
|
90
|
|
|
} |
|
91
|
11 |
|
} |
|
92
|
|
|
|
|
93
|
11 |
|
return true; |
|
94
|
|
|
} |
|
95
|
|
|
} |
jaytaph /
RateLimitBundle
