|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
declare(strict_types=1); |
|
4
|
|
|
|
|
5
|
|
|
namespace Ecodev\Felix\Validator; |
|
6
|
|
|
|
|
7
|
|
|
abstract class IPRange |
|
8
|
|
|
{ |
|
9
|
|
|
/** |
|
10
|
|
|
* Whether the given IP address matches at least one of the given CIDR. |
|
11
|
|
|
* |
|
12
|
|
|
* @param string[] $cidrs |
|
13
|
|
|
*/ |
|
14
|
23 |
|
final public static function matches(string $ip, array $cidrs): bool |
|
15
|
|
|
{ |
|
16
|
23 |
|
foreach ($cidrs as $cidr) { |
|
17
|
23 |
|
if (self::matchesOne($ip, $cidr)) { |
|
18
|
10 |
|
return true; |
|
19
|
|
|
} |
|
20
|
|
|
} |
|
21
|
|
|
|
|
22
|
13 |
|
return false; |
|
23
|
|
|
} |
|
24
|
|
|
|
|
25
|
23 |
|
private static function matchesOne(string $ip, string $cidr): bool |
|
26
|
|
|
{ |
|
27
|
23 |
|
if (str_contains($ip, ':')) { |
|
28
|
9 |
|
return self::matchesIPv6($ip, $cidr); |
|
29
|
|
|
} |
|
30
|
|
|
|
|
31
|
14 |
|
return self::matchesIPv4($ip, $cidr); |
|
32
|
|
|
} |
|
33
|
|
|
|
|
34
|
14 |
|
private static function matchesIPv4(string $ip, string $cidr): bool |
|
35
|
|
|
{ |
|
36
|
14 |
|
$mask = 32; |
|
37
|
14 |
|
$subnet = $cidr; |
|
38
|
|
|
|
|
39
|
14 |
|
if (str_contains($cidr, '/')) { |
|
40
|
7 |
|
[$subnet, $mask] = explode('/', $cidr, 2); |
|
41
|
7 |
|
$mask = (int) $mask; |
|
42
|
|
|
} |
|
43
|
|
|
|
|
44
|
14 |
|
if ($mask < 0 || $mask > 32) { |
|
45
|
1 |
|
return false; |
|
46
|
|
|
} |
|
47
|
|
|
|
|
48
|
13 |
|
$ip = ip2long($ip); |
|
49
|
13 |
|
$subnet = ip2long($subnet); |
|
50
|
13 |
|
if (false === $ip || false === $subnet) { |
|
51
|
|
|
// Invalid data |
|
52
|
5 |
|
return false; |
|
53
|
|
|
} |
|
54
|
|
|
|
|
55
|
8 |
|
return 0 === substr_compare( |
|
56
|
8 |
|
sprintf('%032b', $ip), |
|
57
|
8 |
|
sprintf('%032b', $subnet), |
|
58
|
8 |
|
0, |
|
59
|
8 |
|
$mask |
|
60
|
8 |
|
); |
|
61
|
|
|
} |
|
62
|
|
|
|
|
63
|
9 |
|
private static function matchesIPv6(string $ip, string $cidr): bool |
|
64
|
|
|
{ |
|
65
|
9 |
|
$mask = 128; |
|
66
|
9 |
|
$subnet = $cidr; |
|
67
|
|
|
|
|
68
|
9 |
|
if (str_contains($cidr, '/')) { |
|
69
|
4 |
|
[$subnet, $mask] = explode('/', $cidr, 2); |
|
70
|
4 |
|
$mask = (int) $mask; |
|
71
|
|
|
} |
|
72
|
|
|
|
|
73
|
9 |
|
if ($mask < 0 || $mask > 128) { |
|
74
|
|
|
return false; |
|
75
|
|
|
} |
|
76
|
|
|
|
|
77
|
9 |
|
$ip = inet_pton($ip); |
|
78
|
9 |
|
$subnet = inet_pton($subnet); |
|
79
|
|
|
|
|
80
|
9 |
|
if (false === $ip || false === $subnet) { |
|
81
|
|
|
// Invalid data |
|
82
|
2 |
|
return false; |
|
83
|
|
|
} |
|
84
|
|
|
|
|
85
|
|
|
// mask 0: if it's a valid IP, it's valid |
|
86
|
7 |
|
if ($mask === 0) { |
|
87
|
2 |
|
return (bool) unpack('n*', $ip); |
|
88
|
|
|
} |
|
89
|
|
|
|
|
90
|
|
|
/** @see http://stackoverflow.com/questions/7951061/matching-ipv6-address-to-a-cidr-subnet, MW answer */ |
|
91
|
5 |
|
$binMask = str_repeat('f', (int) ($mask / 4)); |
|
92
|
5 |
|
switch ($mask % 4) { |
|
93
|
5 |
|
case 0: |
|
94
|
3 |
|
break; |
|
95
|
2 |
|
case 1: |
|
96
|
2 |
|
$binMask .= '8'; |
|
97
|
|
|
|
|
98
|
2 |
|
break; |
|
99
|
|
|
case 2: |
|
100
|
|
|
$binMask .= 'c'; |
|
101
|
|
|
|
|
102
|
|
|
break; |
|
103
|
|
|
case 3: |
|
104
|
|
|
$binMask .= 'e'; |
|
105
|
|
|
|
|
106
|
|
|
break; |
|
107
|
|
|
} |
|
108
|
|
|
|
|
109
|
5 |
|
$binMask = str_pad($binMask, 32, '0'); |
|
110
|
5 |
|
$binMask = pack('H*', $binMask); |
|
111
|
|
|
|
|
112
|
5 |
|
return ($ip & $binMask) === $subnet; |
|
|
|
|
|
|
113
|
|
|
} |
|
114
|
|
|
} |
|
115
|
|
|
|
Ecodev /
felix
Loading history...