<?php

  /*
  Title:
   Proxy Detection

  Version:
   v2.0
 
  Description:
   This will detect any suspicious open socket
   that the user is running and if found in an
   array, it will not let the user proceed to 
   the website, and the ability to allow certain
   hosts to pass the scan.
 
  Author:
   Jonathan Anders
   geminii@citcom.net
   http://www.unixcon.net/~datalogik/scripts/
 
  Usage:
   Just include this page in any webpage you want protected.

  Notes:
   If you like this code and use it, I would like to inform you of a much larger
   project that I am working on named 'phpPPS - Protection Suite' which uses the
   same concept but in a much larger, multiple-user oriented way.
  */

  /* Modify these next few lines to whatever you like. */
  
  $Ports = array('1080', '8080', '8000', '3128', '8888', '23', '80', '8081');  // To hold the list of ports.
  $AllowedHosts = array('localhost', 'allowedhost.com');      // To hold the list of allowed hosts.
  $DisallowedHosts = array('127.0.0.1.poo.com', 'something.msn');    // To hold the list of disallowed hosts.
  $Redirect = "http://www.yahoo.com";    // Redirect page
  $SocketTimeout = 1;        // Higher the number, the longer it takes.

  /* End of modification. */

  if ((!in_array ($REMOTE_ADDR, $AllowedHosts)) && (!in_array ($REMOTE_ADDR, $DisallowedHosts)))
  {
  
  $x = 1;
  
  while ($Ports[$x])
  {
    $fSockPointer = fsockopen($REMOTE_ADDR, $Ports[$x], $errno, $errstr, $SocketTimeout);
    if ($fSockPointer)
    {
    header ("Location: $Redirect");
    fclose($fSockPointer);
    }
    $x++;
  }
  } else {
  if (in_array ($REMOTE_ADDR, $AllowedHosts))
  {
    die();
  } else {
    header ("Location: $Redirect");
    die();
  }
  }

?>