1
|
<?php
|
2
|
/*
|
3
|
License: LGPL as per: http://www.gnu.org/copyleft/lesser.html
|
4
|
$Id: proxy.php 3650 2007-11-28 00:26:06Z rdewit $
|
5
|
$Name$
|
6
|
*/
|
7
|
|
8
|
////////////////////////////////////////////////////////////////////////////////
|
9
|
// Description:
|
10
|
// Script to redirect the request http://host/proxy.php?url=http://someUrl
|
11
|
// to http://someUrl .
|
12
|
//
|
13
|
// This script can be used to circumvent javascript's security requirements
|
14
|
// which prevent a URL from an external web site being called.
|
15
|
//
|
16
|
// Author: Nedjo Rogers
|
17
|
////////////////////////////////////////////////////////////////////////////////
|
18
|
|
19
|
// read in the variables
|
20
|
|
21
|
if(array_key_exists('HTTP_SERVERURL', $_SERVER)){
|
22
|
$onlineresource=$_SERVER['HTTP_SERVERURL'];
|
23
|
}else{
|
24
|
$onlineresource=$_REQUEST['url'];
|
25
|
}
|
26
|
$parsed = parse_url($onlineresource);
|
27
|
$host = @$parsed["host"];
|
28
|
$path = @$parsed["path"] . "?" . @$parsed["query"];
|
29
|
if(empty($host)) {
|
30
|
$host = "localhost";
|
31
|
}
|
32
|
$port = @$parsed['port'];
|
33
|
if(empty($port)){
|
34
|
$port="80";
|
35
|
}
|
36
|
$contenttype = @$_REQUEST['contenttype'];
|
37
|
if(empty($contenttype)) {
|
38
|
$contenttype = "text/xml";
|
39
|
}
|
40
|
$data = @$GLOBALS["HTTP_RAW_POST_DATA"];
|
41
|
// define content type
|
42
|
header("Content-type: " . $contenttype);
|
43
|
|
44
|
if(empty($data)) {
|
45
|
$result = send_request();
|
46
|
}
|
47
|
else {
|
48
|
// post XML
|
49
|
$posting = new HTTP_Client($host, $port, $data);
|
50
|
$posting->set_path($path);
|
51
|
$result = $posting->send_request();
|
52
|
}
|
53
|
|
54
|
// strip leading text from result and output result
|
55
|
$len=strlen($result);
|
56
|
$pos = strpos($result, "<");
|
57
|
if($pos > 1) {
|
58
|
$result = substr($result, $pos, $len);
|
59
|
}
|
60
|
//$result = str_replace("xlink:","",$result);
|
61
|
echo $result;
|
62
|
|
63
|
// define class with functions to open socket and post XML
|
64
|
// from http://www.phpbuilder.com/annotate/message.php3?id=1013274 by Richard Hundt
|
65
|
|
66
|
class HTTP_Client {
|
67
|
var $host;
|
68
|
var $path;
|
69
|
var $port;
|
70
|
var $data;
|
71
|
var $socket;
|
72
|
var $errno;
|
73
|
var $errstr;
|
74
|
var $timeout;
|
75
|
var $buf;
|
76
|
var $result;
|
77
|
var $agent_name = "MyAgent";
|
78
|
//Constructor, timeout 30s
|
79
|
function HTTP_Client($host, $port, $data, $timeout = 30) {
|
80
|
$this->host = $host;
|
81
|
$this->port = $port;
|
82
|
$this->data = $data;
|
83
|
$this->timeout = $timeout;
|
84
|
}
|
85
|
|
86
|
//Opens a connection
|
87
|
function connect() {
|
88
|
$this->socket = fsockopen($this->host,
|
89
|
$this->port,
|
90
|
$this->errno,
|
91
|
$this->errstr,
|
92
|
$this->timeout
|
93
|
);
|
94
|
if(!$this->socket)
|
95
|
return false;
|
96
|
else
|
97
|
return true;
|
98
|
}
|
99
|
|
100
|
//Set the path
|
101
|
function set_path($path) {
|
102
|
$this->path = $path;
|
103
|
}
|
104
|
|
105
|
//Send request and clean up
|
106
|
function send_request() {
|
107
|
if(!$this->connect()) {
|
108
|
return false;
|
109
|
}
|
110
|
else {
|
111
|
$this->result = $this->request($this->data);
|
112
|
return $this->result;
|
113
|
}
|
114
|
}
|
115
|
|
116
|
function request($data) {
|
117
|
$this->buf = "";
|
118
|
fwrite($this->socket,
|
119
|
"POST $this->path HTTP/1.0\r\n".
|
120
|
"Host:$this->host\r\n".
|
121
|
"User-Agent: $this->agent_name\r\n".
|
122
|
"Content-Type: application/xml\r\n".
|
123
|
"Content-Length: ".strlen($data).
|
124
|
"\r\n".
|
125
|
"\r\n".$data.
|
126
|
"\r\n"
|
127
|
);
|
128
|
|
129
|
while(!feof($this->socket))
|
130
|
$this->buf .= fgets($this->socket, 2048);
|
131
|
$this->close();
|
132
|
return $this->buf;
|
133
|
}
|
134
|
|
135
|
|
136
|
function close() {
|
137
|
fclose($this->socket);
|
138
|
}
|
139
|
}
|
140
|
|
141
|
|
142
|
|
143
|
function send_request() {
|
144
|
global $onlineresource;
|
145
|
$ch = curl_init();
|
146
|
$timeout = 5; // set to zero for no timeout
|
147
|
|
148
|
// fix to allow HTTPS connections with incorrect certificates
|
149
|
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
|
150
|
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 2);
|
151
|
|
152
|
curl_setopt ($ch, CURLOPT_URL,$onlineresource);
|
153
|
curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);
|
154
|
curl_setopt ($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
|
155
|
curl_setopt ($ch, CURLOPT_ENCODING , "gzip, deflate");
|
156
|
|
157
|
$file_contents = curl_exec($ch);
|
158
|
curl_close($ch);
|
159
|
$lines = array();
|
160
|
$lines = explode("\n", $file_contents);
|
161
|
if(!($response = $lines)) {
|
162
|
echo "Unable to retrieve file '$service_request'";
|
163
|
}
|
164
|
$response = implode("",$response);
|
165
|
return $response;
|
166
|
}
|
167
|
?>
|