observe.py 文件源码

def register_args(subparsers):
    class SubcommandHelpFormatter(argparse.RawDescriptionHelpFormatter):
        def _format_action(self, action):
            parts = super()._format_action(action)
            if action.nargs == argparse.PARSER:
                parts = "\n".join([line for line in parts.split("\n")[1:]])
                parts += "\n\nSpider safely!"
            return parts

    parser = subparsers.add_parser(name='observe',
                                   help="Passively observe network traffic",
                                   formatter_class=SubcommandHelpFormatter)
    parser.add_argument('--list-chains', help="Prints a list of available chains",
                        action='store_true')
    parser.add_argument('-i', '--interface', default="eth0",
                        help="The interface to use for the observer. (Default: eth0)")
    parser.add_argument('--output', default='/dev/stdout', metavar='OUTPUTFILE',
                        help=("The file to output results data to. "
                              "Defaults to standard output."))
    parser.add_argument('chains', nargs='*', help="Observer chains to use")

    # Set the command entry point
    parser.set_defaults(cmd=run_observer)