173 lines
4.3 KiB
Python
173 lines
4.3 KiB
Python
import csv
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import ipaddress
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import threading
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from collections import defaultdict
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from datetime import datetime
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from time import sleep
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import sys
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import requests
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from lexicon.client import Client
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from lexicon.config import ConfigResolver
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from oshipka.util.process import process_exp_backoff
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from secrets import HOVER_USERNAME, HOVER_PASSWORD
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SLEEP_SECONDS = 60 * 30 # 30 min
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ipv4_sites = [
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"http://www.icanhazip.com",
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"http://ipecho.net/plain",
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"http://checkip.amazonaws.com",
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"http://ipinfo.io/ip",
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"http://ifconfig.me"
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]
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ipv6_sites = [
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"http://bot.whatismyipaddress.com",
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"https://diagnostic.opendns.com/myip",
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"https://ifconfig.co/ip",
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]
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dns_to_check = []
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with open('dns_addresses.csv') as csvf:
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csvreader = csv.reader(csvf)
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for row in csvreader:
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dns_to_check.append(row)
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ip_checkers = ipv4_sites + ipv6_sites
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results = []
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real = defaultdict(dict)
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def test_ip(ip):
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try:
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ipaddress_info = ipaddress.ip_address(ip)
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except ValueError as e:
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print(e)
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return None
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if ipaddress_info.version == 4:
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version = 'A'
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elif ipaddress_info.version == 6:
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version = 'AAAA'
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else:
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return None
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return {
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"addr": ipaddress_info.exploded,
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"version": version,
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}
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def fetch_ip(url):
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try:
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resp = requests.get(url)
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ip = resp.text.strip()
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ip_info = test_ip(ip)
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if ip_info:
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results.append(ip_info)
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except Exception as e:
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print("Error fetching {}: {}".format(url, e))
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tso, tsd = [], []
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def check_observed():
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for url in ip_checkers:
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t = threading.Thread(target=fetch_ip, args=(url,))
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tso.append(t)
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t.start()
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def check_dns():
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for domain, ipv in dns_to_check:
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t = threading.Thread(target=get_dns, args=(domain, ipv,))
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tsd.append(t)
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t.start()
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def get_hover_results(domain, ipv):
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dns_config = ConfigResolver()
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dns_config.with_dict({
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'provider_name': 'hover',
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'action': 'list',
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'type': ipv,
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'domain': domain,
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'hover': {
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'auth_username': HOVER_USERNAME,
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'auth_password': HOVER_PASSWORD,
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}
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})
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client = Client(dns_config)
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return client.execute()
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def set_hover_results(domain, ipv, new):
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dns_config = ConfigResolver()
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dns_config.with_dict({
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'provider_name': 'hover',
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'action': 'update',
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'type': ipv,
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'domain': domain,
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'name': domain,
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'content': new,
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'hover': {
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'auth_username': HOVER_USERNAME,
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'auth_password': HOVER_PASSWORD,
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}
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})
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client = Client(dns_config)
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return client.execute()
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def get_dns(domain, ipv):
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results = process_exp_backoff(get_hover_results, func_args=[domain, ipv])
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res = [x.get('content') for x in results if x.get('name') == domain]
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if len(res) == 1:
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print("Real {}: {}".format(ipv, res[0]))
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real[domain][ipv] = res[0]
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def set_dns(domain, ipv, new):
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return process_exp_backoff(set_hover_results, func_args=[domain, ipv, new])
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def get_uniq(_list):
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if len(_list) > 1 and len(set(_list)) == 1:
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return _list[0]
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def main():
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check_dns()
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check_observed()
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for t in tso:
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t.join()
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for t in tsd:
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t.join()
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for domain, version in dns_to_check:
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ip_obs = get_uniq([x['addr'] for x in results if x['version'] == version])
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print("{}/{}: {}".format(domain, version, ip_obs))
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ip_real = real.get(domain).get(version)
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sys.stdout.flush()
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if ip_obs == ip_real:
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print('{}/{} is same!'.format(domain, version))
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else:
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print("{}/{} diff on dns: real: {}, obs: {}".format(domain, version, ip_real, ip_obs))
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if set_dns(domain, version, ip_real):
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print("update successful {}/{} -> {}".format(domain, version, ip_real))
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else:
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print("update failed: {}/{} on dns is {}, but obs is {}".format(
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domain, version, ip_real, ip_obs
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))
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if __name__ == "__main__":
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while True:
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print("{}: Waking up".format(datetime.utcnow()))
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sys.stdout.flush()
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main()
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print("{}: Sleeping for {}".format(datetime.utcnow(), SLEEP_SECONDS))
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sys.stdout.flush()
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sleep(SLEEP_SECONDS)
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