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Check if call is made using TOR client

Possible Duplicate:
Block TOR Servers

I would like to know if it is possible to see if a call to my PHP page is done by a TOR client (meaning the call comes in over the TOR project network). Today I call a bunch of IP adresses gotten from https://check.torproject.org/cgi-bin/TorBulkExitList.py, but it would be more fun if I can spoof the data send back to the thieves leaching my API.

I can't think of anyway to find out, is it possible? How?

Solution

  • The Class might be just want you need .. it check for ip-port.exitlist.torproject.org in DNS information and determine if an user is accessing a site using the Tor network.

    Example

    $tor = Tor::getInstance(); 

// check current users ip and 
// return true or false 
var_dump($tor->isTorActive()); 

// check ip of another user 
var_dump($tor->setTarget('1.2.3.4')->isTorActive());

    See Full Class