#!/usr/bin/env python2.7
# encoding: utf-8

from __future__ import absolute_import

from ldap3 import (
    ALL,
    Connection, 
    SASL,
    Server, 
)


def gssapi_auth_supported(server):
    s = Server(server, get_info=ALL)
    c = Connection(s)
    c.open()
    return 'GSSAPI' in s.info.supported_sasl_mechanisms   


def bind_gssapi(server):
    s = Server(server, use_ssl=False)
    c = Connection(s, authentication=SASL, sasl_mechanism='GSSAPI')
    c.bind()
    return c


def main():
    import sys
    import os
    MYNAME = os.path.basename(__file__)
    if len(sys.argv) != 2:
        raise ValueError("Usage: %s domain_controller" % MYNAME)
    conn = bind_gssapi(sys.argv[1])


if __name__ == '__main__':
    main()