On Fri, Feb 16, 2018 at 3:27 AM flipchan flipchan@riseup.net wrote:

Im trying to write an ip checker script for a mail server/firewall and i want to be able check if the ip is a tor relay, is their a api for looking up ips on atlas.torproject.org ?

Do you want to check if it's any relay, or do you want to check if it's an exit?

To check for an exit I've used: https://check.torproject.org/cgi-bin/TorBulkExitList.py?ip=X.X.X.X&port=...

Q

Or any other easier way to do it in like python :)

Here ya go. This downloads the consensus so if you're gonna be doing more than an occasional one-off check you should use the suggestions from teor.

========================================

import sys import stem.descriptor.remote

def is_exit(address): for desc in stem.descriptor.remote.get_consensus(): if 'Exit' in desc.flags and address == desc.address: return True

return False

if __name__ == '__main__': if len(sys.argv) < 2: print('You need to provide an address to check.') elif is_exit(sys.argv[1]): print('%s is a tor exit.' % sys.argv[1]) else: print('%s is not a tor exit.' % sys.argv[1])

========================================

% python demo.py 199.58.81.140 199.58.81.140 is not a tor exit.

% python demo.py 154.16.149.74 154.16.149.74 is a tor exit.