-
Notifications
You must be signed in to change notification settings - Fork 65
/
function.fetch.php
221 lines (208 loc) · 8.54 KB
/
function.fetch.php
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
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
<?php
/**
* Smarty plugin
* @package Smarty
* @subpackage plugins
*/
/**
* Smarty {fetch} plugin
*
* Type: function<br>
* Name: fetch<br>
* Purpose: fetch file, web or ftp data and display results
* @link http://smarty.php.net/manual/en/language.function.fetch.php {fetch}
* (Smarty online manual)
* @author Monte Ohrt <monte at ohrt dot com>
* @param array
* @param Smarty
* @return string|null if the assign parameter is passed, Smarty assigns the
* result to a template variable
*/
function smarty_function_fetch($params, &$smarty)
{
if (empty($params['file'])) {
$smarty->_trigger_fatal_error("[plugin] parameter 'file' cannot be empty");
return;
}
$content = '';
if ($smarty->security && !preg_match('!^(http|ftp)://!i', $params['file'])) {
$_params = array('resource_type' => 'file', 'resource_name' => $params['file']);
require_once(SMARTY_CORE_DIR . 'core.is_secure.php');
if(!smarty_core_is_secure($_params, $smarty)) {
$smarty->_trigger_fatal_error('[plugin] (secure mode) fetch \'' . $params['file'] . '\' is not allowed');
return;
}
// fetch the file
if($fp = @fopen($params['file'],'r')) {
while(!feof($fp)) {
$content .= fgets ($fp,4096);
}
fclose($fp);
} else {
$smarty->_trigger_fatal_error('[plugin] fetch cannot read file \'' . $params['file'] . '\'');
return;
}
} else {
// not a local file
if(preg_match('!^http://!i',$params['file'])) {
// http fetch
if($uri_parts = parse_url($params['file'])) {
// set defaults
$host = $server_name = $uri_parts['host'];
$timeout = 30;
$accept = "image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, */*";
$agent = "Smarty Template Engine ".$smarty->_version;
$referer = "";
$uri = !empty($uri_parts['path']) ? $uri_parts['path'] : '/';
$uri .= !empty($uri_parts['query']) ? '?' . $uri_parts['query'] : '';
$_is_proxy = false;
if(empty($uri_parts['port'])) {
$port = 80;
} else {
$port = $uri_parts['port'];
}
if(!empty($uri_parts['user'])) {
$user = $uri_parts['user'];
}
if(!empty($uri_parts['pass'])) {
$pass = $uri_parts['pass'];
}
// loop through parameters, setup headers
foreach($params as $param_key => $param_value) {
switch($param_key) {
case "file":
case "assign":
case "assign_headers":
break;
case "user":
if(!empty($param_value)) {
$user = $param_value;
}
break;
case "pass":
if(!empty($param_value)) {
$pass = $param_value;
}
break;
case "accept":
if(!empty($param_value)) {
$accept = $param_value;
}
break;
case "header":
if(!empty($param_value)) {
if(!preg_match('![\w\d-]+: .+!',$param_value)) {
$smarty->_trigger_fatal_error("[plugin] invalid header format '".$param_value."'");
return;
} else {
$extra_headers[] = $param_value;
}
}
break;
case "proxy_host":
if(!empty($param_value)) {
$proxy_host = $param_value;
}
break;
case "proxy_port":
if(!preg_match('!\D!', $param_value)) {
$proxy_port = (int) $param_value;
} else {
$smarty->_trigger_fatal_error("[plugin] invalid value for attribute '".$param_key."'");
return;
}
break;
case "agent":
if(!empty($param_value)) {
$agent = $param_value;
}
break;
case "referer":
if(!empty($param_value)) {
$referer = $param_value;
}
break;
case "timeout":
if(!preg_match('!\D!', $param_value)) {
$timeout = (int) $param_value;
} else {
$smarty->_trigger_fatal_error("[plugin] invalid value for attribute '".$param_key."'");
return;
}
break;
default:
$smarty->_trigger_fatal_error("[plugin] unrecognized attribute '".$param_key."'");
return;
}
}
if(!empty($proxy_host) && !empty($proxy_port)) {
$_is_proxy = true;
$fp = fsockopen($proxy_host,$proxy_port,$errno,$errstr,$timeout);
} else {
$fp = fsockopen($server_name,$port,$errno,$errstr,$timeout);
}
if(!$fp) {
$smarty->_trigger_fatal_error("[plugin] unable to fetch: $errstr ($errno)");
return;
} else {
if($_is_proxy) {
fputs($fp, 'GET ' . $params['file'] . " HTTP/1.0\r\n");
} else {
fputs($fp, "GET $uri HTTP/1.0\r\n");
}
if(!empty($host)) {
fputs($fp, "Host: $host\r\n");
}
if(!empty($accept)) {
fputs($fp, "Accept: $accept\r\n");
}
if(!empty($agent)) {
fputs($fp, "User-Agent: $agent\r\n");
}
if(!empty($referer)) {
fputs($fp, "Referer: $referer\r\n");
}
if(isset($extra_headers) && is_array($extra_headers)) {
foreach($extra_headers as $curr_header) {
fputs($fp, $curr_header."\r\n");
}
}
if(!empty($user) && !empty($pass)) {
fputs($fp, "Authorization: BASIC ".base64_encode("$user:$pass")."\r\n");
}
fputs($fp, "\r\n");
while(!feof($fp)) {
$content .= fgets($fp,4096);
}
fclose($fp);
$csplit = split("\r\n\r\n",$content,2);
$content = $csplit[1];
if(!empty($params['assign_headers'])) {
$smarty->assign($params['assign_headers'],split("\r\n",$csplit[0]));
}
}
} else {
$smarty->_trigger_fatal_error("[plugin] unable to parse URL, check syntax");
return;
}
} else {
// ftp fetch
if($fp = @fopen($params['file'],'r')) {
while(!feof($fp)) {
$content .= fgets ($fp,4096);
}
fclose($fp);
} else {
$smarty->_trigger_fatal_error('[plugin] fetch cannot read file \'' . $params['file'] .'\'');
return;
}
}
}
if (!empty($params['assign'])) {
$smarty->assign($params['assign'],$content);
} else {
return $content;
}
}
/* vim: set expandtab: */
?>