def _ParseAndCheckSubOpts()

in gslib/commands/signurl.py [0:0]
54 lines of code
23 McCabe index (conditional complexity)

  def _ParseAndCheckSubOpts(self):
    # Default argument values
    delta = None
    method = 'GET'
    content_type = ''
    passwd = None
    region = _AUTO_DETECT_REGION
    use_service_account = False
    billing_project = None

    for o, v in self.sub_opts:
      # TODO(PY3-ONLY): Delete this if block.
      if six.PY2:
        v = v.decode(sys.stdin.encoding or constants.UTF8)
      if o == '-d':
        if delta is not None:
          delta += _DurationToTimeDelta(v)
        else:
          delta = _DurationToTimeDelta(v)
      elif o == '-m':
        method = v
      elif o == '-c':
        content_type = v
      elif o == '-p':
        passwd = v
      elif o == '-r':
        region = v
      elif o == '-u' or o == '--use-service-account':
        use_service_account = True
      elif o == '-b':
        billing_project = v
      else:
        self.RaiseInvalidArgumentException()

    if delta is None:
      delta = timedelta(hours=1)
    else:
      if use_service_account and delta > _MAX_EXPIRATION_TIME_WITH_MINUS_U:
        # This restriction comes from the IAM SignBlob API. The SignBlob
        # API uses a system-managed key which can guarantee validation only
        # up to 12 hours. b/156160482#comment4
        raise CommandException(
            'Max valid duration allowed is %s when -u flag is used. For longer'
            ' duration, consider using the private-key-file instead of the -u'
            ' option.' % _MAX_EXPIRATION_TIME_WITH_MINUS_U)
      elif delta > _MAX_EXPIRATION_TIME:
        raise CommandException('Max valid duration allowed is '
                               '%s' % _MAX_EXPIRATION_TIME)

    if method not in ['GET', 'PUT', 'DELETE', 'HEAD', 'RESUMABLE']:
      raise CommandException('HTTP method must be one of'
                             '[GET|HEAD|PUT|DELETE|RESUMABLE]')

    if not use_service_account and len(self.args) < 2:
      raise CommandException(
          'The command requires a key file argument and one or more '
          'URL arguments if the --use-service-account flag is missing. '
          'Run `gsutil help signurl` for more info')

    if use_service_account and billing_project:
      raise CommandException(
          'Specifying both the -b and --use-service-account options together is'
          'invalid.')

    return method, delta, content_type, passwd, region, use_service_account, billing_project