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							221 lines
						
					
					
						
							8.6 KiB
						
					
					
				| <?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); | |
|                     $csplit = preg_split("!\r\n\r\n!",$content,2); | |
| 
 | |
|                     $content = $csplit[1]; | |
| 
 | |
|                     if(!empty($params['assign_headers'])) { | |
|                         $smarty->assign($params['assign_headers'],preg_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: */ | |
| 
 | |
| ?>
 | |
| 
 |