1 | <?php
|
---|
2 | /**
|
---|
3 | * Smarty plugin
|
---|
4 | * @package Smarty
|
---|
5 | * @subpackage plugins
|
---|
6 | */
|
---|
7 |
|
---|
8 |
|
---|
9 | /**
|
---|
10 | * Smarty {fetch} plugin
|
---|
11 | *
|
---|
12 | * Type: function<br>
|
---|
13 | * Name: fetch<br>
|
---|
14 | * Purpose: fetch file, web or ftp data and display results
|
---|
15 | * @link http://smarty.php.net/manual/en/language.function.fetch.php {fetch}
|
---|
16 | * (Smarty online manual)
|
---|
17 | * @author Monte Ohrt <monte at ohrt dot com>
|
---|
18 | * @param array
|
---|
19 | * @param Smarty
|
---|
20 | * @return string|null if the assign parameter is passed, Smarty assigns the
|
---|
21 | * result to a template variable
|
---|
22 | */
|
---|
23 | function smarty_function_fetch($params, &$smarty)
|
---|
24 | {
|
---|
25 | if (empty($params['file'])) {
|
---|
26 | $smarty->_trigger_fatal_error("[plugin] parameter 'file' cannot be empty");
|
---|
27 | return;
|
---|
28 | }
|
---|
29 |
|
---|
30 | $content = '';
|
---|
31 | if ($smarty->security && !preg_match('!^(http|ftp)://!i', $params['file'])) {
|
---|
32 | $_params = array('resource_type' => 'file', 'resource_name' => $params['file']);
|
---|
33 | require_once(SMARTY_CORE_DIR . 'core.is_secure.php');
|
---|
34 | if(!smarty_core_is_secure($_params, $smarty)) {
|
---|
35 | $smarty->_trigger_fatal_error('[plugin] (secure mode) fetch \'' . $params['file'] . '\' is not allowed');
|
---|
36 | return;
|
---|
37 | }
|
---|
38 |
|
---|
39 | // fetch the file
|
---|
40 | if($fp = @fopen($params['file'],'r')) {
|
---|
41 | while(!feof($fp)) {
|
---|
42 | $content .= fgets ($fp,4096);
|
---|
43 | }
|
---|
44 | fclose($fp);
|
---|
45 | } else {
|
---|
46 | $smarty->_trigger_fatal_error('[plugin] fetch cannot read file \'' . $params['file'] . '\'');
|
---|
47 | return;
|
---|
48 | }
|
---|
49 | } else {
|
---|
50 | // not a local file
|
---|
51 | if(preg_match('!^http://!i',$params['file'])) {
|
---|
52 | // http fetch
|
---|
53 | if($uri_parts = parse_url($params['file'])) {
|
---|
54 | // set defaults
|
---|
55 | $host = $server_name = $uri_parts['host'];
|
---|
56 | $timeout = 30;
|
---|
57 | $accept = "image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, */*";
|
---|
58 | $agent = "Smarty Template Engine ".$smarty->_version;
|
---|
59 | $referer = "";
|
---|
60 | $uri = !empty($uri_parts['path']) ? $uri_parts['path'] : '/';
|
---|
61 | $uri .= !empty($uri_parts['query']) ? '?' . $uri_parts['query'] : '';
|
---|
62 | $_is_proxy = false;
|
---|
63 | if(empty($uri_parts['port'])) {
|
---|
64 | $port = 80;
|
---|
65 | } else {
|
---|
66 | $port = $uri_parts['port'];
|
---|
67 | }
|
---|
68 | if(!empty($uri_parts['user'])) {
|
---|
69 | $user = $uri_parts['user'];
|
---|
70 | }
|
---|
71 | if(!empty($uri_parts['pass'])) {
|
---|
72 | $pass = $uri_parts['pass'];
|
---|
73 | }
|
---|
74 | // loop through parameters, setup headers
|
---|
75 | foreach($params as $param_key => $param_value) {
|
---|
76 | switch($param_key) {
|
---|
77 | case "file":
|
---|
78 | case "assign":
|
---|
79 | case "assign_headers":
|
---|
80 | break;
|
---|
81 | case "user":
|
---|
82 | if(!empty($param_value)) {
|
---|
83 | $user = $param_value;
|
---|
84 | }
|
---|
85 | break;
|
---|
86 | case "pass":
|
---|
87 | if(!empty($param_value)) {
|
---|
88 | $pass = $param_value;
|
---|
89 | }
|
---|
90 | break;
|
---|
91 | case "accept":
|
---|
92 | if(!empty($param_value)) {
|
---|
93 | $accept = $param_value;
|
---|
94 | }
|
---|
95 | break;
|
---|
96 | case "header":
|
---|
97 | if(!empty($param_value)) {
|
---|
98 | if(!preg_match('![\w\d-]+: .+!',$param_value)) {
|
---|
99 | $smarty->_trigger_fatal_error("[plugin] invalid header format '".$param_value."'");
|
---|
100 | return;
|
---|
101 | } else {
|
---|
102 | $extra_headers[] = $param_value;
|
---|
103 | }
|
---|
104 | }
|
---|
105 | break;
|
---|
106 | case "proxy_host":
|
---|
107 | if(!empty($param_value)) {
|
---|
108 | $proxy_host = $param_value;
|
---|
109 | }
|
---|
110 | break;
|
---|
111 | case "proxy_port":
|
---|
112 | if(!preg_match('!\D!', $param_value)) {
|
---|
113 | $proxy_port = (int) $param_value;
|
---|
114 | } else {
|
---|
115 | $smarty->_trigger_fatal_error("[plugin] invalid value for attribute '".$param_key."'");
|
---|
116 | return;
|
---|
117 | }
|
---|
118 | break;
|
---|
119 | case "agent":
|
---|
120 | if(!empty($param_value)) {
|
---|
121 | $agent = $param_value;
|
---|
122 | }
|
---|
123 | break;
|
---|
124 | case "referer":
|
---|
125 | if(!empty($param_value)) {
|
---|
126 | $referer = $param_value;
|
---|
127 | }
|
---|
128 | break;
|
---|
129 | case "timeout":
|
---|
130 | if(!preg_match('!\D!', $param_value)) {
|
---|
131 | $timeout = (int) $param_value;
|
---|
132 | } else {
|
---|
133 | $smarty->_trigger_fatal_error("[plugin] invalid value for attribute '".$param_key."'");
|
---|
134 | return;
|
---|
135 | }
|
---|
136 | break;
|
---|
137 | default:
|
---|
138 | $smarty->_trigger_fatal_error("[plugin] unrecognized attribute '".$param_key."'");
|
---|
139 | return;
|
---|
140 | }
|
---|
141 | }
|
---|
142 | if(!empty($proxy_host) && !empty($proxy_port)) {
|
---|
143 | $_is_proxy = true;
|
---|
144 | $fp = fsockopen($proxy_host,$proxy_port,$errno,$errstr,$timeout);
|
---|
145 | } else {
|
---|
146 | $fp = fsockopen($server_name,$port,$errno,$errstr,$timeout);
|
---|
147 | }
|
---|
148 |
|
---|
149 | if(!$fp) {
|
---|
150 | $smarty->_trigger_fatal_error("[plugin] unable to fetch: $errstr ($errno)");
|
---|
151 | return;
|
---|
152 | } else {
|
---|
153 | if($_is_proxy) {
|
---|
154 | fputs($fp, 'GET ' . $params['file'] . " HTTP/1.0\r\n");
|
---|
155 | } else {
|
---|
156 | fputs($fp, "GET $uri HTTP/1.0\r\n");
|
---|
157 | }
|
---|
158 | if(!empty($host)) {
|
---|
159 | fputs($fp, "Host: $host\r\n");
|
---|
160 | }
|
---|
161 | if(!empty($accept)) {
|
---|
162 | fputs($fp, "Accept: $accept\r\n");
|
---|
163 | }
|
---|
164 | if(!empty($agent)) {
|
---|
165 | fputs($fp, "User-Agent: $agent\r\n");
|
---|
166 | }
|
---|
167 | if(!empty($referer)) {
|
---|
168 | fputs($fp, "Referer: $referer\r\n");
|
---|
169 | }
|
---|
170 | if(isset($extra_headers) && is_array($extra_headers)) {
|
---|
171 | foreach($extra_headers as $curr_header) {
|
---|
172 | fputs($fp, $curr_header."\r\n");
|
---|
173 | }
|
---|
174 | }
|
---|
175 | if(!empty($user) && !empty($pass)) {
|
---|
176 | fputs($fp, "Authorization: BASIC ".base64_encode("$user:$pass")."\r\n");
|
---|
177 | }
|
---|
178 |
|
---|
179 | fputs($fp, "\r\n");
|
---|
180 | while(!feof($fp)) {
|
---|
181 | $content .= fgets($fp,4096);
|
---|
182 | }
|
---|
183 | fclose($fp);
|
---|
184 | $csplit = split("\r\n\r\n",$content,2);
|
---|
185 |
|
---|
186 | $content = $csplit[1];
|
---|
187 |
|
---|
188 | if(!empty($params['assign_headers'])) {
|
---|
189 | $smarty->assign($params['assign_headers'],split("\r\n",$csplit[0]));
|
---|
190 | }
|
---|
191 | }
|
---|
192 | } else {
|
---|
193 | $smarty->_trigger_fatal_error("[plugin] unable to parse URL, check syntax");
|
---|
194 | return;
|
---|
195 | }
|
---|
196 | } else {
|
---|
197 | // ftp fetch
|
---|
198 | if($fp = @fopen($params['file'],'r')) {
|
---|
199 | while(!feof($fp)) {
|
---|
200 | $content .= fgets ($fp,4096);
|
---|
201 | }
|
---|
202 | fclose($fp);
|
---|
203 | } else {
|
---|
204 | $smarty->_trigger_fatal_error('[plugin] fetch cannot read file \'' . $params['file'] .'\'');
|
---|
205 | return;
|
---|
206 | }
|
---|
207 | }
|
---|
208 |
|
---|
209 | }
|
---|
210 |
|
---|
211 |
|
---|
212 | if (!empty($params['assign'])) {
|
---|
213 | $smarty->assign($params['assign'],$content);
|
---|
214 | } else {
|
---|
215 | return $content;
|
---|
216 | }
|
---|
217 | }
|
---|
218 |
|
---|
219 | /* vim: set expandtab: */
|
---|
220 |
|
---|
221 | ?>
|
---|