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E:/E/GEAMP/www/openbiz/openbiz/others/Smarty/libs/plugins/function.fetch.php

00001 <?php
00022 function smarty_function_fetch($params, &$smarty)
00023 {
00024     if (empty($params['file'])) {
00025         $smarty->_trigger_fatal_error("[plugin] parameter 'file' cannot be empty");
00026         return;
00027     }
00028 
00029     $content = '';
00030     if ($smarty->security && !preg_match('!^(http|ftp)://!i', $params['file'])) {
00031         $_params = array('resource_type' => 'file', 'resource_name' => $params['file']);
00032         require_once(SMARTY_CORE_DIR . 'core.is_secure.php');
00033         if(!smarty_core_is_secure($_params, $smarty)) {
00034             $smarty->_trigger_fatal_error('[plugin] (secure mode) fetch \'' . $params['file'] . '\' is not allowed');
00035             return;
00036         }
00037         
00038         // fetch the file
00039         if($fp = @fopen($params['file'],'r')) {
00040             while(!feof($fp)) {
00041                 $content .= fgets ($fp,4096);
00042             }
00043             fclose($fp);
00044         } else {
00045             $smarty->_trigger_fatal_error('[plugin] fetch cannot read file \'' . $params['file'] . '\'');
00046             return;
00047         }
00048     } else {
00049         // not a local file
00050         if(preg_match('!^http://!i',$params['file'])) {
00051             // http fetch
00052             if($uri_parts = parse_url($params['file'])) {
00053                 // set defaults
00054                 $host = $server_name = $uri_parts['host'];
00055                 $timeout = 30;
00056                 $accept = "image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, */*";
00057                 $agent = "Smarty Template Engine ".$smarty->_version;
00058                 $referer = "";
00059                 $uri = !empty($uri_parts['path']) ? $uri_parts['path'] : '/';
00060                 $uri .= !empty($uri_parts['query']) ? '?' . $uri_parts['query'] : '';
00061                 $_is_proxy = false;
00062                 if(empty($uri_parts['port'])) {
00063                     $port = 80;
00064                 } else {
00065                     $port = $uri_parts['port'];
00066                 }
00067                 if(!empty($uri_parts['user'])) {
00068                     $user = $uri_parts['user'];
00069                 }
00070                 if(!empty($uri_parts['pass'])) {
00071                     $pass = $uri_parts['pass'];
00072                 }
00073                 // loop through parameters, setup headers
00074                 foreach($params as $param_key => $param_value) {
00075                     switch($param_key) {
00076                         case "file":
00077                         case "assign":
00078                         case "assign_headers":
00079                             break;
00080                         case "user":
00081                             if(!empty($param_value)) {
00082                                 $user = $param_value;
00083                             }
00084                             break;
00085                         case "pass":
00086                             if(!empty($param_value)) {
00087                                 $pass = $param_value;
00088                             }
00089                             break;
00090                         case "accept":
00091                             if(!empty($param_value)) {
00092                                 $accept = $param_value;
00093                             }
00094                             break;
00095                         case "header":
00096                             if(!empty($param_value)) {
00097                                 if(!preg_match('![\w\d-]+: .+!',$param_value)) {
00098                                     $smarty->_trigger_fatal_error("[plugin] invalid header format '".$param_value."'");
00099                                     return;
00100                                 } else {
00101                                     $extra_headers[] = $param_value;
00102                                 }
00103                             }
00104                             break;
00105                         case "proxy_host":
00106                             if(!empty($param_value)) {
00107                                 $proxy_host = $param_value;
00108                             }
00109                             break;
00110                         case "proxy_port":
00111                             if(!preg_match('!\D!', $param_value)) {
00112                                 $proxy_port = (int) $param_value;
00113                             } else {
00114                                 $smarty->_trigger_fatal_error("[plugin] invalid value for attribute '".$param_key."'");
00115                                 return;
00116                             }
00117                             break;
00118                         case "agent":
00119                             if(!empty($param_value)) {
00120                                 $agent = $param_value;
00121                             }
00122                             break;
00123                         case "referer":
00124                             if(!empty($param_value)) {
00125                                 $referer = $param_value;
00126                             }
00127                             break;
00128                         case "timeout":
00129                             if(!preg_match('!\D!', $param_value)) {
00130                                 $timeout = (int) $param_value;
00131                             } else {
00132                                 $smarty->_trigger_fatal_error("[plugin] invalid value for attribute '".$param_key."'");
00133                                 return;
00134                             }
00135                             break;
00136                         default:
00137                             $smarty->_trigger_fatal_error("[plugin] unrecognized attribute '".$param_key."'");
00138                             return;
00139                     }
00140                 }
00141                 if(!empty($proxy_host) && !empty($proxy_port)) {
00142                     $_is_proxy = true;
00143                     $fp = fsockopen($proxy_host,$proxy_port,$errno,$errstr,$timeout);
00144                 } else {
00145                     $fp = fsockopen($server_name,$port,$errno,$errstr,$timeout);
00146                 }
00147 
00148                 if(!$fp) {
00149                     $smarty->_trigger_fatal_error("[plugin] unable to fetch: $errstr ($errno)");
00150                     return;
00151                 } else {
00152                     if($_is_proxy) {
00153                         fputs($fp, 'GET ' . $params['file'] . " HTTP/1.0\r\n");
00154                     } else {
00155                         fputs($fp, "GET $uri HTTP/1.0\r\n");
00156                     }
00157                     if(!empty($host)) {
00158                         fputs($fp, "Host: $host\r\n");
00159                     }
00160                     if(!empty($accept)) {
00161                         fputs($fp, "Accept: $accept\r\n");
00162                     }
00163                     if(!empty($agent)) {
00164                         fputs($fp, "User-Agent: $agent\r\n");
00165                     }
00166                     if(!empty($referer)) {
00167                         fputs($fp, "Referer: $referer\r\n");
00168                     }
00169                     if(isset($extra_headers) && is_array($extra_headers)) {
00170                         foreach($extra_headers as $curr_header) {
00171                             fputs($fp, $curr_header."\r\n");
00172                         }
00173                     }
00174                     if(!empty($user) && !empty($pass)) {
00175                         fputs($fp, "Authorization: BASIC ".base64_encode("$user:$pass")."\r\n");
00176                     }
00177 
00178                     fputs($fp, "\r\n");
00179                     while(!feof($fp)) {
00180                         $content .= fgets($fp,4096);
00181                     }
00182                     fclose($fp);
00183                     $csplit = split("\r\n\r\n",$content,2);
00184 
00185                     $content = $csplit[1];
00186 
00187                     if(!empty($params['assign_headers'])) {
00188                         $smarty->assign($params['assign_headers'],split("\r\n",$csplit[0]));
00189                     }
00190                 }
00191             } else {
00192                 $smarty->_trigger_fatal_error("[plugin] unable to parse URL, check syntax");
00193                 return;
00194             }
00195         } else {
00196             // ftp fetch
00197             if($fp = @fopen($params['file'],'r')) {
00198                 while(!feof($fp)) {
00199                     $content .= fgets ($fp,4096);
00200                 }
00201                 fclose($fp);
00202             } else {
00203                 $smarty->_trigger_fatal_error('[plugin] fetch cannot read file \'' . $params['file'] .'\'');
00204                 return;
00205             }
00206         }
00207 
00208     }
00209 
00210 
00211     if (!empty($params['assign'])) {
00212         $smarty->assign($params['assign'],$content);
00213     } else {
00214         return $content;
00215     }
00216 }
00217 
00218 /* vim: set expandtab: */
00219 
00220 ?>

Generated on Thu Apr 19 2012 17:01:16 for openbiz by  doxygen 1.7.2