6 * @subpackage PluginsFunction
10 * Smarty {fetch} plugin
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 $params parameters
19 * @param object $template template object
20 * @return string|null if the assign parameter is passed, Smarty assigns the
21 * result to a template variable
23 function smarty_function_fetch($params, $template)
25 if (empty($params['file'])) {
26 trigger_error("[plugin] fetch parameter 'file' cannot be empty",E_USER_NOTICE);
31 if (isset($template->security_policy) && !preg_match('!^(http|ftp)://!i', $params['file'])) {
32 if(!$template->security_policy->isTrustedResourceDir($params['file'])) {
37 if($fp = @fopen($params['file'],'r')) {
39 $content .= fgets ($fp,4096);
43 trigger_error('[plugin] fetch cannot read file \'' . $params['file'] . '\'',E_USER_NOTICE);
48 if(preg_match('!^http://!i',$params['file'])) {
50 if($uri_parts = parse_url($params['file'])) {
52 $host = $server_name = $uri_parts['host'];
54 $accept = "image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, */*";
55 $agent = "Smarty Template Engine ".$template->_version;
57 $uri = !empty($uri_parts['path']) ? $uri_parts['path'] : '/';
58 $uri .= !empty($uri_parts['query']) ? '?' . $uri_parts['query'] : '';
60 if(empty($uri_parts['port'])) {
63 $port = $uri_parts['port'];
65 if(!empty($uri_parts['user'])) {
66 $user = $uri_parts['user'];
68 if(!empty($uri_parts['pass'])) {
69 $pass = $uri_parts['pass'];
71 // loop through parameters, setup headers
72 foreach($params as $param_key => $param_value) {
76 case "assign_headers":
79 if(!empty($param_value)) {
84 if(!empty($param_value)) {
89 if(!empty($param_value)) {
90 $accept = $param_value;
94 if(!empty($param_value)) {
95 if(!preg_match('![\w\d-]+: .+!',$param_value)) {
96 trigger_error("[plugin] invalid header format '".$param_value."'",E_USER_NOTICE);
99 $extra_headers[] = $param_value;
104 if(!empty($param_value)) {
105 $proxy_host = $param_value;
109 if(!preg_match('!\D!', $param_value)) {
110 $proxy_port = (int) $param_value;
112 trigger_error("[plugin] invalid value for attribute '".$param_key."'",E_USER_NOTICE);
117 if(!empty($param_value)) {
118 $agent = $param_value;
122 if(!empty($param_value)) {
123 $referer = $param_value;
127 if(!preg_match('!\D!', $param_value)) {
128 $timeout = (int) $param_value;
130 trigger_error("[plugin] invalid value for attribute '".$param_key."'",E_USER_NOTICE);
135 trigger_error("[plugin] unrecognized attribute '".$param_key."'",E_USER_NOTICE);
139 if(!empty($proxy_host) && !empty($proxy_port)) {
141 $fp = fsockopen($proxy_host,$proxy_port,$errno,$errstr,$timeout);
143 $fp = fsockopen($server_name,$port,$errno,$errstr,$timeout);
147 trigger_error("[plugin] unable to fetch: $errstr ($errno)",E_USER_NOTICE);
151 fputs($fp, 'GET ' . $params['file'] . " HTTP/1.0\r\n");
153 fputs($fp, "GET $uri HTTP/1.0\r\n");
156 fputs($fp, "Host: $host\r\n");
158 if(!empty($accept)) {
159 fputs($fp, "Accept: $accept\r\n");
162 fputs($fp, "User-Agent: $agent\r\n");
164 if(!empty($referer)) {
165 fputs($fp, "Referer: $referer\r\n");
167 if(isset($extra_headers) && is_array($extra_headers)) {
168 foreach($extra_headers as $curr_header) {
169 fputs($fp, $curr_header."\r\n");
172 if(!empty($user) && !empty($pass)) {
173 fputs($fp, "Authorization: BASIC ".base64_encode("$user:$pass")."\r\n");
178 $content .= fgets($fp,4096);
181 $csplit = preg_split("!\r\n\r\n!",$content,2);
183 $content = $csplit[1];
185 if(!empty($params['assign_headers'])) {
186 $template->assign($params['assign_headers'],preg_split("!\r\n!",$csplit[0]));
190 trigger_error("[plugin fetch] unable to parse URL, check syntax",E_USER_NOTICE);
195 if($fp = @fopen($params['file'],'r')) {
197 $content .= fgets ($fp,4096);
201 trigger_error('[plugin] fetch cannot read file \'' . $params['file'] .'\'',E_USER_NOTICE);
209 if (!empty($params['assign'])) {
210 $template->assign($params['assign'],$content);