#!/usr/bin/python

# Copyright (c) 2013 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

import sys

from autotest_lib.client.cros.networking import shill_proxy

def usage():
    """ Print a usage message for this script. """
    cmd = sys.argv[0]
    common_args = ['<certificate>', '<public_key>', '<nonce>',
                   '<signed_data>', '<destination_udn>',
                   '<hotspot_ssid>', '<hotspot_bssid>']
    print cmd, 'encrypt', ' '.join(common_args)
    print cmd, 'verify', ' '.join(common_args), '<data to encrypt>'
    return False


def main(args):
    """ Call methods related to destinations.

    @param args arguments to the script, not including the script name.

    """
    NUM_VERIFY_ARGS = 7
    NUM_ENCRYPT_ARGS = NUM_VERIFY_ARGS + 1
    if len(args) < 1:
        return usage()
    command = args[0]
    args = args[1:]
    shill = shill_proxy.ShillProxy()
    if command == 'verify':
        if len(args) < NUM_VERIFY_ARGS:
            return usage()

        if shill.manager.VerifyDestination(*args[0:NUM_VERIFY_ARGS]):
            print 'Valid destination'
            return True

    if command == 'encrypt':
        if len(args) < NUM_ENCRYPT_ARGS:
            return usage()

        print shill.manager.VerifyAndEncryptData(*args[0:NUM_ENCRYPT_ARGS])
        return True

    return usage()


if __name__ == '__main__':
    if not main(sys.argv[1:]):
        sys.exit(1)