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File: web-app/lib/SMARTY/plugins/function.fetch.php

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  Classes of davifelipe  >  smart MVC  >  web-app/lib/SMARTY/plugins/function.fetch.php  >  Download  
File: web-app/lib/SMARTY/plugins/function.fetch.php
Role: Auxiliary script
Content type: text/plain
Description: Auxiliary script
Class: smart MVC
MVC framework using Smarty to render views
Author: By
Last change:
Date: 3 years ago
Size: 8,743 bytes
 

Contents

Class file image Download
<?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);
                   
$csplit = split("\r\n\r\n",$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: */

?>