Make code compatibile with python 2 and 3

# Copyright (C) 2014-2015 Nginx, Inc.

import sys, os, signal, base64, ldap, Cookie, argparse

import sys, os, signal, base64, ldap, argparse

if sys.version_info.major == 2:

    from Cookie import BaseCookie

    from BaseHTTPServer import HTTPServer, BaseHTTPRequestHandler

elif sys.version_info.major == 3:

    from http.cookies import BaseCookie

    from http.server import HTTPServer, BaseHTTPRequestHandler

if not hasattr(__builtins__, "basestring"): basestring = (str, bytes)

#Listen = ('localhost', 8888)

#Listen = "/tmp/auth.sock"    # Also uncomment lines in 'Requests are

# -----------------------------------------------------------------------------

# Requests are processed in separate thread

import threading

if sys.version_info.major == 2:

    from SocketServer import ThreadingMixIn

elif sys.version_info.major == 3:

    from socketserver import ThreadingMixIn

class AuthHTTPServer(ThreadingMixIn, HTTPServer):

    pass

# -----------------------------------------------------------------------------

        try:

            auth_decoded = base64.b64decode(auth_header[6:])

            if sys.version_info.major == 3: auth_decoded = auth_decoded.decode("utf-8")

            user, passwd = auth_decoded.split(':', 1)

        except:

    def get_cookie(self, name):

        cookies = self.headers.get('Cookie')

        if cookies:

            authcookie = Cookie.BaseCookie(cookies).get(name)

            authcookie = BaseCookie(cookies).get(name)

            if authcookie:

                return authcookie.value

            else: