|
1
|
|
|
<?php |
|
2
|
|
|
/****************************************************************************** |
|
3
|
|
|
* Wikipedia Account Creation Assistance tool * |
|
4
|
|
|
* * |
|
5
|
|
|
* All code in this file is released into the public domain by the ACC * |
|
6
|
|
|
* Development Team. Please see team.json for a list of contributors. * |
|
7
|
|
|
******************************************************************************/ |
|
8
|
|
|
|
|
9
|
|
|
namespace Waca\Providers; |
|
10
|
|
|
|
|
11
|
|
|
use PDOStatement; |
|
12
|
|
|
use Waca\PdoDatabase; |
|
13
|
|
|
use Waca\Providers\Interfaces\IXffTrustProvider; |
|
14
|
|
|
|
|
15
|
|
|
/** |
|
16
|
|
|
* XffTrustProvider short summary. |
|
17
|
|
|
* |
|
18
|
|
|
* XffTrustProvider description. |
|
19
|
|
|
* |
|
20
|
|
|
* @version 1.0 |
|
21
|
|
|
* @author stwalkerster |
|
22
|
|
|
*/ |
|
23
|
|
|
class XffTrustProvider implements IXffTrustProvider |
|
24
|
|
|
{ |
|
25
|
|
|
/** |
|
26
|
|
|
* Array of IP addresses which are TRUSTED proxies |
|
27
|
|
|
* @var string[] |
|
28
|
|
|
*/ |
|
29
|
|
|
private $trustedCache; |
|
30
|
|
|
/** |
|
31
|
|
|
* Array of IP addresses which are UNTRUSTED proxies |
|
32
|
|
|
* @var string[] |
|
33
|
|
|
*/ |
|
34
|
|
|
private $untrustedCache = array(); |
|
35
|
|
|
/** @var PDOStatement */ |
|
36
|
|
|
private $trustedQuery; |
|
37
|
|
|
/** |
|
38
|
|
|
* @var PdoDatabase |
|
39
|
|
|
*/ |
|
40
|
|
|
private $database; |
|
41
|
|
|
|
|
42
|
|
|
/** |
|
43
|
|
|
* Creates a new instance of the trust provider |
|
44
|
|
|
* |
|
45
|
|
|
* @param string[] $squidIpList List of IP addresses to pre-approve |
|
46
|
|
|
* @param PdoDatabase $database |
|
47
|
|
|
*/ |
|
48
|
|
|
public function __construct($squidIpList, PdoDatabase $database) |
|
49
|
|
|
{ |
|
50
|
|
|
$this->trustedCache = $squidIpList; |
|
51
|
|
|
$this->database = $database; |
|
52
|
|
|
} |
|
53
|
|
|
|
|
54
|
|
|
/** |
|
55
|
|
|
* Returns a value if the IP address is a trusted proxy |
|
56
|
|
|
* |
|
57
|
|
|
* @param string $ip |
|
58
|
|
|
* |
|
59
|
|
|
* @return bool |
|
60
|
|
|
*/ |
|
61
|
|
|
public function isTrusted($ip) |
|
62
|
|
|
{ |
|
63
|
|
|
if (in_array($ip, $this->trustedCache)) { |
|
64
|
|
|
return true; |
|
65
|
|
|
} |
|
66
|
|
|
|
|
67
|
|
|
if (in_array($ip, $this->untrustedCache)) { |
|
68
|
|
|
return false; |
|
69
|
|
|
} |
|
70
|
|
|
|
|
71
|
|
|
if ($this->trustedQuery === null) { |
|
72
|
|
|
$query = "SELECT COUNT(id) FROM xfftrustcache WHERE ip = :ip;"; |
|
73
|
|
|
$this->trustedQuery = $this->database->prepare($query); |
|
74
|
|
|
} |
|
75
|
|
|
|
|
76
|
|
|
$this->trustedQuery->execute(array(":ip" => $ip)); |
|
77
|
|
|
$result = $this->trustedQuery->fetchColumn(); |
|
78
|
|
|
$this->trustedQuery->closeCursor(); |
|
79
|
|
|
|
|
80
|
|
|
if ($result == 0) { |
|
81
|
|
|
$this->untrustedCache[] = $ip; |
|
82
|
|
|
|
|
83
|
|
|
return false; |
|
84
|
|
|
} |
|
85
|
|
|
|
|
86
|
|
|
if ($result >= 1) { |
|
87
|
|
|
$this->trustedCache[] = $ip; |
|
88
|
|
|
|
|
89
|
|
|
return true; |
|
90
|
|
|
} |
|
91
|
|
|
|
|
92
|
|
|
// something weird has happened if we've got here. |
|
93
|
|
|
// default to untrusted. |
|
94
|
|
|
return false; |
|
95
|
|
|
} |
|
96
|
|
|
|
|
97
|
|
|
/** |
|
98
|
|
|
* Gets the last trusted IP in the proxy chain. |
|
99
|
|
|
* |
|
100
|
|
|
* @param string $ip The IP address from REMOTE_ADDR |
|
101
|
|
|
* @param string $proxyIp The contents of the XFF header. |
|
102
|
|
|
* |
|
103
|
|
|
* @return string Trusted source IP address |
|
104
|
|
|
*/ |
|
105
|
|
|
public function getTrustedClientIp($ip, $proxyIp) |
|
106
|
|
|
{ |
|
107
|
|
|
$clientIpAddress = $ip; |
|
108
|
|
|
if ($proxyIp) { |
|
109
|
|
|
$ipList = explode(",", $proxyIp); |
|
110
|
|
|
$ipList[] = $clientIpAddress; |
|
111
|
|
|
$ipList = array_reverse($ipList); |
|
112
|
|
|
|
|
113
|
|
|
foreach ($ipList as $ipNumber => $ipAddress) { |
|
114
|
|
|
if ($this->isTrusted(trim($ipAddress)) && $ipNumber < (count($ipList) - 1)) { |
|
115
|
|
|
continue; |
|
116
|
|
|
} |
|
117
|
|
|
|
|
118
|
|
|
$clientIpAddress = $ipAddress; |
|
119
|
|
|
break; |
|
120
|
|
|
} |
|
121
|
|
|
} |
|
122
|
|
|
|
|
123
|
|
|
return trim($clientIpAddress); |
|
124
|
|
|
} |
|
125
|
|
|
|
|
126
|
|
|
/** |
|
127
|
|
|
* Takes an array( "low" => "high" ) values, and returns true if $needle is in at least one of them. |
|
128
|
|
|
* |
|
129
|
|
|
* @param array $haystack |
|
130
|
|
|
* @param string $ip |
|
131
|
|
|
* |
|
132
|
|
|
* @return bool |
|
133
|
|
|
*/ |
|
134
|
|
|
public function ipInRange($haystack, $ip) |
|
135
|
|
|
{ |
|
136
|
|
|
$needle = ip2long($ip); |
|
137
|
|
|
|
|
138
|
|
|
foreach ($haystack as $low => $high) { |
|
139
|
|
|
if (ip2long($low) <= $needle && ip2long($high) >= $needle) { |
|
140
|
|
|
return true; |
|
141
|
|
|
} |
|
142
|
|
|
} |
|
143
|
|
|
|
|
144
|
|
|
return false; |
|
145
|
|
|
} |
|
146
|
|
|
|
|
147
|
|
|
/** |
|
148
|
|
|
* Explodes a CIDR range into an array of addresses |
|
149
|
|
|
* |
|
150
|
|
|
* @param string $range A CIDR-format range |
|
151
|
|
|
* |
|
152
|
|
|
* @return array An array containing every IP address in the range |
|
153
|
|
|
*/ |
|
154
|
|
|
public function explodeCidr($range) |
|
155
|
|
|
{ |
|
156
|
|
|
$cidrData = explode('/', $range); |
|
157
|
|
|
|
|
158
|
|
|
if (!isset($cidrData[1])) { |
|
159
|
|
|
return array($range); |
|
160
|
|
|
} |
|
161
|
|
|
|
|
162
|
|
|
$blow = ( |
|
163
|
|
|
str_pad(decbin(ip2long($cidrData[0])), 32, "0", STR_PAD_LEFT) & |
|
|
|
|
|
|
164
|
|
|
str_pad(str_pad("", $cidrData[1], "1"), 32, "0") |
|
|
|
|
|
|
165
|
|
|
); |
|
166
|
|
|
$bhigh = ($blow | str_pad(str_pad("", $cidrData[1], "0"), 32, "1")); |
|
|
|
|
|
|
167
|
|
|
|
|
168
|
|
|
$list = array(); |
|
169
|
|
|
|
|
170
|
|
|
$bindecBHigh = bindec($bhigh); |
|
171
|
|
|
for ($x = bindec($blow); $x <= $bindecBHigh; $x++) { |
|
172
|
|
|
$list[] = long2ip($x); |
|
|
|
|
|
|
173
|
|
|
} |
|
174
|
|
|
|
|
175
|
|
|
return $list; |
|
176
|
|
|
} |
|
177
|
|
|
} |
|
178
|
|
|
|
stwalkerster /
waca
Loading history...
