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PHP Demo Application - Source Code

/Framework/Model/Vendor/Smarty/libs/plugins/function.fetch.php

<?php
/**
 * Smarty plugin
 * @package Smarty
 * @subpackage PluginsFunction
 */
/**
 * 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 $params parameters
 * @param object $smarty Smarty object
 * @param object $template template object
 * @return string|null if the assign parameter is passed, Smarty assigns the
 *                     result to a template variable
 */
function smarty_function_fetch($params$smarty$template)
{
    if (empty(
$params['file'])) {
        
trigger_error("[plugin] fetch parameter 'file' cannot be empty",E_USER_NOTICE);
        return;
    }    
$content '';
    if (
$template->security && !preg_match('!^(http|ftp)://!i'$params['file'])) {
        if(!
$smarty->security_handler->isTrustedResourceDir($params['file'])) {
            return;
        }
        
        
// fetch the file
        
if($fp = @fopen($params['file'],'r')) {
            while(!
feof($fp)) {
                
$content .= fgets ($fp,4096);
            }
            
fclose($fp);
        } else {
            
trigger_error('[plugin] fetch cannot read file \'' $params['file'] . '\'',E_USER_NOTICE);
            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)) {
                                    
trigger_error("[plugin] invalid header format '".$param_value."'",E_USER_NOTICE);
                                    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 {
                                
trigger_error("[plugin] invalid value for attribute '".$param_key."'",E_USER_NOTICE);
                                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 {
                                
trigger_error("[plugin] invalid value for attribute '".$param_key."'",E_USER_NOTICE);
                                return;
                            }
                            break;
                        default:
                            
trigger_error("[plugin] unrecognized attribute '".$param_key."'",E_USER_NOTICE);
                            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) {
                    
trigger_error("[plugin] unable to fetch: $errstr ($errno)",E_USER_NOTICE);
                    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'])) {
                        
$template->assign($params['assign_headers'],preg_split("!\r\n!",$csplit[0]));
                    }
                }
            } else {
                
trigger_error("[plugin fetch] unable to parse URL, check syntax",E_USER_NOTICE);
                return;
            }
        } else {
            
// ftp fetch
            
if($fp = @fopen($params['file'],'r')) {
                while(!
feof($fp)) {
                    
$content .= fgets ($fp,4096);
                }
                
fclose($fp);
            } else {
                
trigger_error('[plugin] fetch cannot read file \'' $params['file'] .'\'',E_USER_NOTICE);
                return;
            }
        }    }
    if (!empty(
$params['assign'])) {
        
$template->assign($params['assign'],$content);
    } else {
        return 
$content;
    }
}
?>

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