blob: 14e1a7a0f074d7a0fc57d052d1b67fe1a867fe76 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
|
<?php
/**
* Piwik - Open source web analytics
*
* @link http://piwik.org
* @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
*
* @category Piwik
* @package Piwik
*/
/**
* Proxy headers
*
* @package Piwik
*/
class Piwik_ProxyHeaders
{
/**
* Get protocol information, with the exception of HTTPS
*
* @return string protocol information
*/
public static function getProtocolInformation()
{
if(Piwik_Common::getRequestVar('clientProtocol', 'http', 'string') == 'https')
{
return 'https';
}
if(isset($_SERVER['SERVER_PORT']) && $_SERVER['SERVER_PORT'] == 443)
{
return 'SERVER_PORT=443';
}
if(isset($_SERVER['HTTP_X_FORWARDED_PROTO']) && strtolower($_SERVER['HTTP_X_FORWARDED_PROTO']) == 'https')
{
return 'X-Forwarded-Proto';
}
if(isset($_SERVER['HTTP_X_FORWARDED_SCHEME']) && strtolower($_SERVER['HTTP_X_FORWARDED_SCHEME']) == 'https')
{
return 'X-Forwarded-Scheme';
}
if(isset($_SERVER['HTTP_X_URL_SCHEME']) && strtolower($_SERVER['HTTP_X_URL_SCHEME']) == 'https')
{
return 'X-Url-Scheme';
}
return null;
}
/**
* Get headers present in the HTTP request
*
* @param array $recognizedHeaders
* @return array HTTP headers
*/
private static function getHeaders($recognizedHeaders)
{
$headers = array();
foreach($recognizedHeaders as $header)
{
if(isset($_SERVER[$header]))
{
$headers[] = $header;
}
}
return $headers;
}
/**
* Detect proxy client headers
*
* @return array Proxy client HTTP headers
*/
public static function getProxyClientHeaders()
{
return self::getHeaders(array(
'HTTP_CF_CONNECTING_IP',
'HTTP_CLIENT_IP',
'HTTP_X_FORWARDED_FOR',
));
}
/**
* Detect proxy host headers
*
* @return array Proxy host HTTP headers
*/
public static function getProxyHostHeaders()
{
return self::getHeaders(array(
'HTTP_X_FORWARDED_HOST',
));
}
}
|
