Example of external authentication script for ejabberd server

ejabberd_ext_auth.py

#!/usr/bin/env python

import sys
import logging
from struct import pack, unpack

logging.basicConfig(level=logging.INFO,
                    format='%(asctime)s %(levelname)s %(message)s',
                    filename='/var/log/ejabberd/extauth.log',
                    filemode='a')

def input_from_ejabberd():
  iplen = sys.stdin.read(2)
  (count,) = unpack('>h', iplen)
  input = sys.stdin.read(iplen)
  logging.info("Incoming input from ejabberd: %s", input)
  return input

def done(is_authenticated=False):
  result = 0
  
  if is_authenticated:
    result = 1
    
  op = pack('>hh', 2, result)
  sys.stdout.write(op)
  sys.stdout.flush()

while True:
  user_pass = input_from_ejabberd()
  if len(user_pass) > 1:
    done(True)
   else:
    done(False)