#!/usr/bin/python

# Copyright (c) 2009, Purdue University
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"""List host tool for roster"""


__copyright__ = 'Copyright (C) 2009, Purdue University'
__license__ = 'BSD'
__version__ = '0.5'


import os
import sys
import getpass

from optparse import OptionParser

from roster_user_tools import cli_record_lib
from roster_user_tools import cli_common_lib
from roster_user_tools import roster_client_lib


def main(args):
  """Collects command line arguments, checks ip addresses and adds records.

  Inputs:
    args: list of arguments from the command line
  """
  parser = OptionParser()

  parser.add_option('-i', '--ip-address', action='store', dest='ip_address',
                    help='IP address of machine.', metavar='<ip-address>',
                    default=None)
  parser.add_option('-r', '--range', action='store', dest='range',
                    help='CIDR block range of IP addresses. Assumes -l, will'
                    'only print a list of ip addresses. Example:'
                    '10.10.0.0/24', metavar='<range>', default=None)
  parser.add_option('-s', '--server', action='store', dest='server',
                    help='XML RPC Server address.', metavar='<server>',
                    default='https://localhost:8000')
  parser.add_option('-t', '--target', action='store', dest='target',
                    help='Target machine host name.', metavar='<target>',
                    default=None)
  parser.add_option('--ttl', action='store', dest='ttl',
                    help='Time to live.', metavar='<ttl>', default=5)
  parser.add_option('-v', '--view-name', action='store', dest='view_name',
                    help=('String of the view name <view-name>. Example: '
                    '"internal"'), metavar='<view-name>', default=None)
  parser.add_option('-u', '--username', action='store', dest='username',
                    help='Run as a different username.', metavar='<username>',
                    default=unicode(getpass.getuser()))
  parser.add_option('-p', '--password', action='store', dest='password',
                    help='Password string, NOTE: It is insecure to use this '
                    'flag on the command line.', metavar='<password>',
                    default=None)
  parser.add_option('-c', '--cred-file', action='store', dest='credfile',
                    help='Location of credential file.', metavar='<cred-file>',
                    default=os.path.join(os.path.expanduser('~'), '.dnscred'))

  (globals()["options"], args) = parser.parse_args(args)

  cli_common_lib.CheckCredentials(options)

  if( options.range is not None ):
    records_dict = roster_client_lib.RunFunction(
        'ListRecordsByCIDRBlock', options.username, credfile=options.credfile,
        server_name=options.server, args=[options.range],
        kwargs={'view_name': options.view_name})['core_return']
    ip_address_list = roster_client_lib.RunFunction('CIDRExpand',
                                                    options.username,
                                                    credfile=options.credfile,
                                                    server_name=options.server,
                                                    args=[options.range])[
                                                        'core_return']

    print cli_common_lib.PrintRecords(records_dict, ip_address_list)
  else:
    cli_common_lib.DnsError('An ip address or range must be specified.', 1)


if __name__ == "__main__":
    main(sys.argv[1:])
