gosa-core/include/smarty/plugins/function.fetch.php

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