%PDF-
%PDF-
Mini Shell
Mini Shell
<?php
if( !defined( '_JEXEC' ) ) die( 'Direct Access to '.basename(__FILE__).' is not allowed.' );
/**
*
* @version $Id:connection.php 431 2006-10-17 21:55:46 +0200 (Di, 17 Okt 2006) soeren_nb $
* @package VirtueMart
* @subpackage classes
* @copyright Copyright (C) 2004-2007 soeren, 2009-2011 VirtueMart Team. All rights reserved.
* @license http://www.gnu.org/copyleft/gpl.html GNU/GPL, see LICENSE.php
* VirtueMart is free software. This version may have been modified pursuant
* to the GNU General Public License, and as distributed it includes or
* is derivative of works licensed under the GNU General Public License or
* other free or open source software licenses.
* See /administrator/components/com_virtuemart/COPYRIGHT.php for copyright notices and details.
*
* http://virtuemart.org
*/
/**
* Provides general tools to handle connections (http, headers, ... )
*
* @author soeren
* @since VirtueMart 1.1.0
*/
class VmConnector {
var $handle = null;
/**
* Clears the output buffer, sends a http status code and a content if given
* @static
* @param int $http_status
* @param string $mime_type
* @param string $content
*/
function sendHeaderAndContent( $http_status=200, $content='', $mime_type='text/html' ) {
// Clear all Joomla header and buffer stuff
while( @ob_end_clean() );
$http_status = intval( $http_status );
@header("HTTP/1.0 $http_status");
if( $mime_type ) {
@header( "Content-type: $mime_type; charset=".vmGetCharset() );
} elseif( $mime_type != '' ) {
@header( "Content-type: text/html; charset=".vmGetCharset() );
}
if( $content ) {
echo $content;
}
}
/**
* This is a general function to safely open a connection to a server,
* post data when needed and read the result.
* Tries using cURL and switches to fopen/fsockopen if cURL is not available
* @since VirtueMart 1.1.0
* @static
* @param string $url
* @param string $postData
* @param array $headers
* @param resource $fileToSaveData
* @return mixed
*/
static function handleCommunication( $url, $postData='', $headers=array(), $fileToSaveData=null ) {
$urlParts = parse_url( $url );
if( !isset( $urlParts['port'] )) $urlParts['port'] = 80;
if( !isset( $urlParts['scheme'] )) $urlParts['scheme'] = 'http';
if( isset( $urlParts['query'] )){
$urlParts['query'] = '?'.$urlParts['query'];
if( isset( $urlParts['path'] )) $urlParts['path'] = $urlParts['path'].$urlParts['query'];
}
$vm_proxy_url = VmConfig::get('conf_VM_PROXY_URL','');
// Check proxy
if( trim( $vm_proxy_url ) != '') {
if( !stristr($vm_proxy_url, 'http')) {
$proxyURL['host'] = $vm_proxy_url;
$proxyURL['scheme'] = 'http';
} else {
$proxyURL = parse_url($vm_proxy_url);
}
}
else {
$proxyURL = '';
}
if( function_exists( "curl_init" ) && function_exists( 'curl_exec' ) ) {
$CR = curl_init();
curl_setopt($CR, CURLOPT_URL, $url);
// just to get sure the script doesn't die
curl_setopt($CR, CURLOPT_TIMEOUT, 30 );
if( !empty( $headers )) {
// Add additional headers if provided
curl_setopt($CR, CURLOPT_HTTPHEADER, $headers);
}
curl_setopt($CR, CURLOPT_FAILONERROR, true);
if( $postData ) {
curl_setopt($CR, CURLOPT_POSTFIELDS, $postData );
curl_setopt($CR, CURLOPT_POST, 1);
}
if( is_resource($fileToSaveData)) {
curl_setopt($CR, CURLOPT_FILE, $fileToSaveData );
} else {
curl_setopt($CR, CURLOPT_RETURNTRANSFER, 1);
}
// Do we need to set up the proxy?
if( !empty($proxyURL) ) {
// $vmLogger->debug( 'Setting up proxy: '.$proxyURL['host'].':'.VM_PROXY_PORT );
//curl_setopt($CR, CURLOPT_HTTPPROXYTUNNEL, true);
curl_setopt($CR, CURLOPT_PROXY, $proxyURL['host'] );
curl_setopt($CR, CURLOPT_PROXYPORT, VM_PROXY_PORT );
// Check if the proxy needs authentication
if( trim( @VM_PROXY_USER ) != '') {
// $vmLogger->debug( 'Using proxy authentication!' );
curl_setopt($CR, CURLOPT_PROXYUSERPWD, VM_PROXY_USER.':'.VM_PROXY_PASS );
}
}
if( $urlParts['scheme'] == 'https') {
// No PEER certificate validation...as we don't have
// a certificate file for it to authenticate the host www.ups.com against!
curl_setopt($CR, CURLOPT_SSL_VERIFYPEER, 0);
}
$result = curl_exec( $CR );
$error = curl_error( $CR );
if( !empty( $error ) && stristr( $error, '502') && !empty( $proxyURL )) {
// $vmLogger->debug( 'Switching to NTLM authenticaton.');
curl_setopt( $CR, CURLOPT_PROXYAUTH, CURLAUTH_NTLM );
$result = curl_exec( $CR );
$error = curl_error( $CR );
}
curl_close( $CR );
if( !empty( $error )) {
//JError::raiseError(1, $error );
return false;
} else {
return $result;
}
} else {
if( $postData ) {
if( !empty( $proxyURL )) {
// If we have something to post we need to write into a socket
if( $proxyURL['scheme'] == 'https') {
$protocol = 'ssl';
}
else {
$protocol = 'http';
}
$fp = fsockopen("$protocol://".$proxyURL['host'], VM_PROXY_PORT, $errno, $errstr, $timeout = 30);
}
else {
// If we have something to post we need to write into a socket
if( $urlParts['scheme'] == 'https') {
$protocol = 'ssl';
}
else {
$protocol = $urlParts['scheme'];
}
$fp = fsockopen("$protocol://".$urlParts['host'], $urlParts['port'], $errno, $errstr, $timeout = 30);
}
} else {
if( !empty( $proxyURL )) {
// Do a read-only fopen transaction
$fp = fopen( $proxyURL['scheme'].'://'.$proxyURL['host'].':'.VM_PROXY_PORT, 'rb' );
}
else {
// Do a read-only fopen transaction
$fp = fopen( $urlParts['scheme'].'://'.$urlParts['host'].':'.$urlParts['port'].$urlParts['path'], 'rb' );
}
}
if(!$fp) {
//error tell us
vmWarn( 'Possible server error! - '.$errstr .'('.$errno.')\n' );
return false;
}
else {
vmdebug( 'Connection opened to '.$urlParts['host']);
}
if( $postData ) {
//send the server request
if( !empty( $proxyURL )) {
fputs($fp, "POST ".$urlParts['host'].':'.$urlParts['port'].$urlParts['path']." HTTP/1.0\r\n");
fputs($fp, "Host: ".$proxyURL['host']."\r\n");
if( trim( @VM_PROXY_USER )!= '') {
fputs($fp, "Proxy-Authorization: Basic " . base64_encode (VM_PROXY_USER.':'.VM_PROXY_PASS ) . "\r\n\r\n");
}
}
else {
fputs($fp, 'POST '.$urlParts['path']." HTTP/1.0\r\n");
fputs($fp, 'Host:'. $urlParts['host']."\r\n");
}
fputs($fp, "Content-type: application/x-www-form-urlencoded\r\n");
fputs($fp, "Content-length: ".strlen($postData)."\r\n");
fputs($fp, "Connection: close\r\n\r\n");
fputs($fp, $postData . "\r\n\r\n");
} else {
if( !empty( $proxyURL )) {
fputs($fp, "GET ".$urlParts['host'].':'.$urlParts['port'].$urlParts['path']." HTTP/1.0\r\n");
fputs($fp, "Host: ".$proxyURL['host']."\r\n");
if( trim( @VM_PROXY_USER )!= '') {
fputs($fp, "Proxy-Authorization: Basic " . base64_encode (VM_PROXY_USER.':'.VM_PROXY_PASS ) . "\r\n\r\n");
}
}
else {
// JError::raiseNotice(1, 'Host:'. $urlParts['host'].' path: '. $urlParts['path'] );
fputs($fp, 'GET '.$urlParts['path']." HTTP/1.0\r\n");
fputs($fp, 'Host:'. $urlParts['host']."\r\n");
}
}
// Add additional headers if provided
foreach( $headers as $header ) {
fputs($fp, $header."\r\n");
}
$data = "";
while (!feof($fp)) {
$data .= @fgets ($fp, 4096);
}
fclose( $fp );
// If didnt get content-length, something is wrong, return false.
if ( trim($data) == '' ) {
vmWarn('An error occured while communicating with the server '.$urlParts['host'].'. It didn\'t reply (correctly). Please try again later, thank you.' );
return false;
}
$result = trim( $data );
if( is_resource($fileToSaveData )) {
fwrite($fileToSaveData, $result );
return true;
} else {
return $result;
}
}
}
/**
* Set headers and send the file to the client
*
* @author Andreas Gohr <andi@splitbrain.org>
* @param string The full path to the file
* @param string The Mime Type of the file
*/
function sendFile($file,$mime, $overrideFileName='') {
// send headers
header("Content-Type: $mime");
list($start,$len) = VmConnector::http_rangeRequest(filesize($file));
header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
header('Pragma: public');
header('Accept-Ranges: bytes');
//application mime type is downloadable
if(strtolower(substr($mime,0,11)) == 'application') {
if( $overrideFileName == '') {
$filename = basename($file);
} else {
$filename = $overrideFileName;
}
header('Content-Disposition: attachment; filename="'.$filename.'";');
}
$chunksize = 1*(1024*1024);
// send file contents
$fp = @fopen($file,"rb");
if($fp) {
fseek($fp,$start); //seek to start of range
$chunk = ($len > $chunksize) ? $chunksize : $len;
while (!feof($fp) && $chunk > 0) {
@set_time_limit(); // large files can take a lot of time
print fread($fp, $chunk);
flush();
$len -= $chunk;
$chunk = ($len > $chunksize) ? $chunksize : $len;
}
fclose($fp);
}else {
header("HTTP/1.0 500 Internal Server Error");
print "Could not read $file - bad permissions?";
JFactory::getApplication()->close(true);
}
}
/**
* Checks and sets headers to handle range requets
*
* @author Andreas Gohr <andi@splitbrain.org>
* @return array The start byte and the amount of bytes to send
* @param int The file size
*/
function http_rangeRequest($size, $exitOnError=true ) {
if(!isset($_SERVER['HTTP_RANGE'])) {
// no range requested - send the whole file
header("Content-Length: $size");
return array(0,$size);
}
$t = explode('=', $_SERVER['HTTP_RANGE']);
if (!$t[0]=='bytes') {
// we only understand byte ranges - send the whole file
header("Content-Length: $size");
return array(0,$size);
}
$r = explode('-', $t[1]);
$start = (int)$r[0];
$end = (int)$r[1];
if (!$end) $end = $size - 1;
if ($start > $end || $start > $size || $end > $size) {
if( $exitOnError ) {
header('HTTP/1.1 416 Requested Range Not Satisfiable');
print 'Bad Range Request!';
JFactory::getApplication()->close(true);
} else {
return array(0,$size);
}
}
$tot = $end - $start + 1;
header('HTTP/1.1 206 Partial Content');
header("Content-Range: bytes {$start}-{$end}/{$size}");
header("Content-Length: $tot");
return array($start,$tot);
}
}
// pure php no closing tag
Zerion Mini Shell 1.0