Adding HTTP authentication parameters to a URL, proxying the result

http-authentication-proxy

<?php

$url = $_GET['url'];
$cookie = $_GET['cookie'];

$parts = parse_url($url);

$parts['user'] = $auth[$parts['host']]['user'];
$parts['pass'] = $auth[$parts['host']]['pass'];

$url = construct_url($parts);
//print $url;

$headers = array("Cookie: $cookie");
$context['http']['header'] = implode("\r\n", $headers) . "\r\n";

set_time_limit(0);
$s = fopen($url, 'rb', false, stream_context_create($context));

foreach ($http_response_header as $h)
  header($h);

while (!feof($s))
 echo fread($s, 4096);

fclose($s);

function construct_url($p){
  $uri = '';
  
  if (isset($p['scheme']))
    $uri = $p['scheme'] . '://';

  if (isset($p['user'])){
    $uri .= $p['user'];
    if (isset($p['pass']))
      $uri .= ':' . $p['pass'];
    $uri .= '@';
  }

  if (isset($p['host']))
    $uri .= $p['host'];

  if (isset($p['port']))
    $uri .= ':' . $p['port'];

  if (isset($p['path'])){
    if (substr($p['path'], 0, 1) != '/')
      $uri .= '/';
    $uri .= $p['path'];
  }

  if (isset($p['query']))
    $uri .= '?' . $p['query'];

  if (isset($p['fragment']))
    $uri .= '#' . $p['fragment'];

  return $uri;
}