certalert-bot/certstream/cli.py

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Python
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2020-05-13 11:53:58 +02:00
import argparse
import datetime
import json
import logging
import sys
import termcolor
from signal import signal, SIGPIPE, SIG_DFL
import certstream
parser = argparse.ArgumentParser(description='Connect to the CertStream and process CTL list updates.')
parser.add_argument('--json', action='store_true', help='Output raw JSON to the console.')
parser.add_argument('--full', action='store_true', help='Output all SAN addresses as well')
parser.add_argument('--disable-colors', action='store_true', help='Disable colors when writing a human readable ')
parser.add_argument('--verbose', action='store_true', default=False, dest='verbose', help='Display debug logging.')
parser.add_argument('--url', default="wss://certstream.calidog.io", dest='url', help='Connect to a certstream server.')
def main():
args = parser.parse_args()
# Ignore broken pipes
signal(SIGPIPE, SIG_DFL)
log_level = logging.INFO
if args.verbose:
log_level = logging.DEBUG
logging.basicConfig(format='[%(levelname)s:%(name)s] %(asctime)s - %(message)s', level=log_level)
def _handle_messages(message, context):
if args.json:
sys.stdout.flush()
sys.stdout.write(json.dumps(message) + "\n")
sys.stdout.flush()
else:
if args.disable_colors:
logging.debug("Starting normal output.")
payload = "{} {} - {} {}\n".format(
"[{}]".format(datetime.datetime.fromtimestamp(message['data']['seen']).isoformat()),
message['data']['source']['url'],
message['data']['leaf_cert']['subject']['CN'],
"[{}]".format(", ".join(message['data']['leaf_cert']['all_domains'])) if args.full else ""
)
sys.stdout.write(payload)
else:
logging.debug("Starting colored output.")
payload = "{} {} - {} {}\n".format(
termcolor.colored("[{}]".format(datetime.datetime.fromtimestamp(message['data']['seen']).isoformat()), 'cyan', attrs=["bold", ]),
termcolor.colored(message['data']['source']['url'], 'blue', attrs=["bold",]),
termcolor.colored(message['data']['leaf_cert']['subject']['CN'], 'green', attrs=["bold",]),
termcolor.colored("[", 'blue') + "{}".format(
termcolor.colored(", ", 'blue').join(
[termcolor.colored(x, 'white', attrs=["bold",]) for x in message['data']['leaf_cert']['all_domains']]
)
) + termcolor.colored("]", 'blue') if args.full else "",
)
sys.stdout.write(payload)
sys.stdout.flush()
certstream.listen_for_events(_handle_messages, args.url, skip_heartbeats=True)
if __name__ == "__main__":
main()