Start of a lovely script to create iptables

merge_ips.py

#!/usr/bin/env python

import re
import socket, struct
from ipwhois import IPWhois
from ipaddress import ip_network, ip_address

ips = []

with open("merged-file3") as f:
    for line in f:
        try:
            line = line.rstrip('\n')
            socket.inet_aton(line)
            ips.append(str(line))
        except socket.error:
            pass

print (ips)
cidr_ranges = []
tmp_lst = []


for ip in ips:
    try:
        b_found = False
        for each in cidr_ranges:
            net = ip_network(str(each))
            if ip_address(ip) in net:
                print ("debug, already in list no call to WHOIS needed..." + str(ip))
                b_found = True

        if b_found == False:
            print ("debug, call to WHOIS needed, New range..." + str(ip))
            tmp_lst = []
            obj = IPWhois(ip)
            out = obj.lookup_rdap()
            print (out['network']['cidr'])
            tmp_lst = out['network']['cidr'].split(', ') #deals with multiple ranges
            # print (tmp_lst)
            cidr_ranges.extend(tmp_lst)
    except Exception as e: 
        print(e)
        pass

cidr_ranges_dist = []

for i in cidr_ranges:
  if i not in cidr_ranges:
    cidr_ranges_dist.append(i)


for cidr_range in cidr_ranges_dist:
    print(cidr_range)

with open('cidr_ranges.txt', 'w') as f:
    for item in cidr_ranges_dist:
        f.write("%s\n" % item)