cli.py

import argparse

parser = argparse.ArgumentParser(formatter_class=argparse.ArgumentDefaultsHelpFormatter)

parser.add_argument(
    'domain',
    help = 'The domain to scan'
)

parser.add_argument(
    '-o', '--output',
    help = 'A file to output likely origin servers to',
    dest = 'output_file'
)

parser.add_argument(
    '--censys-api-id',
    help = 'Censys API ID. Can also be defined using the CENSYS_API_ID environment variable',
    dest = 'censys_api_id'
)

parser.add_argument(
    '--censys-api-secret',
    help = 'Censys API secret. Can also be defined using the CENSYS_API_SECRET environment variable',
    dest = 'censys_api_secret'
)

parser.add_argument(
    '--cloudfront',
    help = 'Check Cloudfront instead of CloudFlare.',
    dest = 'use_cloudfront',
    action='store_true',
    default=False
)