New header checks

<?php

function badHosts($theirIP)
{
  $badHosts = array('servinio.com', 'turnkeyinternet.net', 'kimsufi.com', 'steephost.com', 'starnet.md', 'asianet.co.th',
  'bezeqint.net', '.server.de', 'ertelecom.ru', 'hostnoc.net', 'dedibox.fr', 'dimenoc.com', 'ukrtel.net', 'ubiquityservers.com');

  $theirHost = gethostbyaddr($theirIP);

  foreach($badHosts as $badHost)
  {
    if(strpos($theirHost, $badHost) !== false)
    {
      return true;
    }
  }
  return false;
}

function badBrowsers()
{
  $badBrowsers = array('Opera/9.80', 'bork-edition', 'Chrome/13.0.782.112', 'Firefox/4', 'Firefox/5', 'Firefox/13.0.1', ' MRA ', 'App3leWebKit');

  foreach($badBrowsers as $badBrowser)
  {
    if(strpos($_SERVER['HTTP_USER_AGENT'], $badBrowser) !== false)
    {
      return true;
    }
  }
  return false;
}

// TOR exit point detection function from http://www.irongeek.com/i.php?page=security/detect-tor-exit-node-in-php
// This will be under EXTREME header check setting with a warning it could block legitimate users

function IsTorExitPoint($theirIP)
{
  if (gethostbyname(ReverseIPOctets($theirIP) . '.' . $_SERVER['SERVER_PORT'] . '.' . ReverseIPOctets($_SERVER['SERVER_ADDR']) . '.ip-port.exitlist.torproject.org') == '127.0.0.2')
  {
    return true;
  }
  else
  {
    return false;
  }
}

function ReverseIPOctets($inputIP)
{
  $ipoc = explode('.', $inputIP);
  return $ipoc[3] . '.' . $ipoc[2] . '.' . $ipoc[1] . '.' . $ipoc[0];
}
?>