<?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) * @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); $csplit = split("\r\n\r\n",$content,2); $content = $csplit[1]; if(!empty($params['assign_headers'])) { $smarty->assign($params['assign_headers'],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: */ ?>