<?php

  // Default headers.
  $request_headers = array();

  // Merge with our received headers, this MUST be done as javascript/jquery
  // must be allowed to add custom headers
  foreach (getallheaders() as $h_name => $h_value) {
    $request_headers[$h_name] = $h_value;
  }

  // Persistent headers.
  $request_headers['SPLUNKUSER'] = $user->name;

  // Remove the - by cURL itself - added 'Expect' header.
  // @see http://curl.haxx.se/mail/archive-2006-10/0044.html.
  $request_headers['Expect'] = '';

  if ($_SERVER['REQUEST_METHOD'] == 'POST'){

    // Store the posted data to be used multiple times.
    $postfields = file_get_contents('php://input');
  }

  $request_headers_new = array();
  foreach ($request_headers as $h_name => $h_value) {
    $request_headers_new[$h_name] = $h_name . ': '. $h_value;
  }

  if ($_SERVER['REQUEST_METHOD'] == 'POST'){
    curl_setopt($ch, CURLOPT_POST, 1);
    curl_setopt($ch, CURLOPT_POSTFIELDS, $postfields);
  }

  // Added for new splunk version to work.
  curl_setopt($ch, CURLOPT_COOKIEFILE, '/tmp/splunk-cookie-'. session_id());
  curl_setopt($ch, CURLOPT_COOKIEJAR, '/tmp/splunk-cookie-'. session_id());
  //

  curl_setopt($ch, CURLOPT_URL, $url);
  curl_setopt($ch, CURLOPT_HEADER, 1);
  curl_setopt($ch, CURLOPT_VERBOSE, 0);
  curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
  curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
  curl_setopt($ch, CURLOPT_TIMEOUT, 0);
  curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
  curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
  curl_setopt($ch, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V4 );
  curl_setopt($ch, CURLOPT_HTTPHEADER, $request_headers_new);
  curl_setopt($ch, CURLINFO_HEADER_OUT, 1);
  curl_setopt($ch, CURLOPT_SSLVERSION , 3);

  //Send the request and store the result in an array
  $response = curl_exec ($ch);

  // Separate header and body.
  list($response_headers, $body) = explode("\r\n\r\n", $response);

  $response_headers = str_replace("Transfer-Encoding: chunked\r\n", "", $response_headers);

  // Separate individual headers.
  $response_headers = explode("\r\n", $response_headers);

  foreach ($response_headers as $key => $value) {

    // Sent header to browser.
    header(trim($value));
  }

  // Replace absolute url's (for stylesheets, js etc).
  $body = str_replace($splunk_url, $proxy_url, $body);

  // Sent body to browser.
  echo  $body;