<?php
if( !function_exists('apache_request_headers') ) {

function apache_request_headers() {
  $arh = array();
  $rx_http = '/\AHTTP_/';
  foreach($_SERVER as $key => $val) {
    if( preg_match($rx_http, $key) ) {
      $arh_key = preg_replace($rx_http, '', $key);
      $rx_matches = array();
      // do some nasty string manipulations to restore the original letter case
      // this should work in most cases
      $rx_matches = explode('_', $arh_key);
      if( count($rx_matches) > 0 and strlen($arh_key) > 2 ) {
        foreach($rx_matches as $ak_key => $ak_val) $rx_matches[$ak_key] = ucfirst($ak_val);
        $arh_key = implode('-', $rx_matches);
      }
      $arh[$arh_key] = $val;
    }
  }
  return( $arh );
  }
}

//SET THE LICENSE INFO
$license_owner = '';
$license_key = '';

//DO NOT MODIFY THE FOLLOWING CODE
$resp = '';
$reqTimeStamp = '';
$headers = apache_request_headers();
foreach ($headers as $header => $value) {
    if ($header == 'Timestamp'){
        $reqTimeStamp = $value;
        break;
    }
}

if (isset($reqTimeStamp)) {
    $license_hash = hash('sha256', $license_key . $reqTimeStamp, false);
    $resp = $license_owner . '|' . $license_hash;
}

ob_start();
ob_clean();
header('Content-type: text/plain');
echo $resp;
ob_end_flush();
exit();