PrivacyNet/privacynet.py

#!/usr/bin/env python3
# Update by Deniz version 3.x

from subprocess import call, check_call, CalledProcessError
from os.path import isfile, basename
from os import devnull
from sys import exit, stdout, stderr
from atexit import register
from argparse import ArgumentParser
from json import load
from urllib.request import urlopen
from urllib.error import URLError
from time import sleep
import subprocess
import requests

class PrivacyNet(object):

    def __init__(self):
        self.local_dnsport = "53"  # DNSPort
        self.virtual_net = "10.0.0.0/10"  # VirtualAddrNetwork
        self.local_loopback = "127.0.0.1"  # Local loopback
        self.non_tor_net = ["192.168.0.0/16", "172.16.0.0/12"]
        self.non_tor = ["127.0.0.0/9", "127.128.0.0/10", "127.0.0.0/8"]
        self.tor_uid = subprocess.getoutput("id -ur debian-tor")  # Tor user uid
        self.trans_port = "9040"  # Tor port
        self.tor_config_file = '/etc/tor/torrc'
        self.torrc = r'''
## Inserted by %s for tor iptables rules set
## Transparently route all traffic thru tor on port %s
VirtualAddrNetwork %s
AutomapHostsOnResolve 1
TransPort %s
DNSPort %s
''' % (basename(__file__), self.trans_port, self.virtual_net, self.trans_port, self.local_dnsport)

    def geolocate_ip(self, ip):
        try:
            response = requests.get(f"http://ip-api.com/json/{ip}")
            data = response.json()
            country = data["country"]
            city = data["city"]
            return country, city
        except Exception as e:
            print(f"Error geolocating IP: {e}")
            return None, None

    def flush_iptables_rules(self):
        call(["iptables", "-F"])
        call(["iptables", "-t", "nat", "-F"])

    def load_iptables_rules(self):
        self.flush_iptables_rules()
        self.non_tor.extend(self.non_tor_net)

        @register
        def restart_tor():
            fnull = open(devnull, 'w')
            try:
                tor_restart = check_call(
                    ["service", "tor", "restart"],
                    stdout=fnull, stderr=fnull)

                if tor_restart == 0:
                    print(" {0}".format(
                        "[+] Anonymizer status [ON]"))
                    self.get_ip()
            except CalledProcessError as err:
                print("[!] Command failed: %s" % ' '.join(err.cmd))

        # See https://trac.torproject.org/projects/tor/wiki/doc/TransparentProxy#WARNING
        # See https://lists.torproject.org/pipermail/tor-talk/2014-March/032503.html
        call(["iptables", "-I", "OUTPUT", "!", "-o", "lo", "!", "-d",self.local_loopback, "!", "-s", self.local_loopback, "-p", "tcp","-m", "tcp", "--tcp-flags", "ACK,FIN", "ACK,FIN", "-j", "DROP"])
        call(["iptables", "-I", "OUTPUT", "!", "-o", "lo", "!", "-d",self.local_loopback, "!", "-s", self.local_loopback, "-p", "tcp","-m", "tcp", "--tcp-flags", "ACK,RST", "ACK,RST", "-j", "DROP"])
        call(["iptables", "-t", "nat", "-A", "OUTPUT", "-m", "owner", "--uid-owner","%s" % self.tor_uid, "-j", "RETURN"])
        call(["iptables", "-t", "nat", "-A", "OUTPUT", "-p", "udp", "--dport",self.local_dnsport, "-j", "REDIRECT", "--to-ports", self.local_dnsport])

        for net in self.non_tor:
            call(["iptables", "-t", "nat", "-A", "OUTPUT", "-d", "%s" % net, "-j","RETURN"])

        call(["iptables", "-t", "nat", "-A", "OUTPUT", "-p", "tcp", "--syn", "-j","REDIRECT", "--to-ports", "%s" % self.trans_port])
        call(["iptables", "-A", "OUTPUT", "-m", "state", "--state","ESTABLISHED,RELATED", "-j", "ACCEPT"])
        for net in self.non_tor:
            call(["iptables", "-A", "OUTPUT", "-d", "%s" % net, "-j", "ACCEPT"])

        call(["iptables", "-A", "OUTPUT", "-m", "owner", "--uid-owner", "%s" % self.tor_uid, "-j", "ACCEPT"])
        call(["iptables", "-A", "OUTPUT", "-j", "REJECT"])

    def get_ip(self):
        print(" {0}".format("[\033[92m*\033[0m] Getting public IP, please wait..."))
        retries = 0
        my_public_ip = None
        while retries < 12 and not my_public_ip:
            retries += 1
            try:
                my_public_ip = load(urlopen('https://check.torproject.org/api/ip'))['IP']
            except URLError:
                sleep(5)
                print(" [\033[93m?\033[0m] Still waiting for IP address...")
            except ValueError:
                break
        if not my_public_ip:
            my_public_ip = subprocess.getoutput('wget -qO - ifconfig.me')
        if not my_public_ip:
            exit(" \033[91m[!]\033[0m Can't get public ip address!")

        country, city = self.geolocate_ip(my_public_ip)
        if country and city:
            print(" {0}".format("[\033[92m+\033[0m] Your IP is \033[92m%s\033[0m" % my_public_ip))
            print(" {0}".format("[\033[92m+\033[0m] Country: \033[92m%s\033[0m" % country))
            print(" {0}".format("[\033[92m+\033[0m] City: \033[92m%s\033[0m" % city))
        else:
            print(" {0}".format("[\033[92m+\033[0m] Your IP is \033[92m%s\033[0m" % my_public_ip))
            print(" {0}".format("[\033[93m!\033[0m] Error geolocating IP"))


if __name__ == '__main__':
    parser = ArgumentParser(
        description='Tor Iptables script for loading and unloading iptables rules')
    parser.add_argument('-l','--load', action='store_true', help='This option will load tor iptables rules')
    parser.add_argument('-f', '--flush',action='store_true', help='This option flushes the iptables rules to default')
    parser.add_argument('-r','--refresh', action='store_true', help='This option will change the circuit and gives new IP')
    parser.add_argument('-i', '--ip', action='store_true', help='This option will output the current public IP address')
    args = parser.parse_args()

    try:
        load_tables = PrivacyNet()
        if isfile(load_tables.tor_config_file):
            if not 'VirtualAddrNetwork' in open(load_tables.tor_config_file).read():
                with open(load_tables.tor_config_file, 'a+') as torrconf:
                    torrconf.write(load_tables.torrc)

        if args.load:
            load_tables.load_iptables_rules()
        elif args.flush:
            load_tables.flush_iptables_rules()
            print(" {0}".format("[\033[93m!\033[0m] Anonymizer status \033[91m[OFF]\033[0m"))
        elif args.ip:
            load_tables.get_ip()
        elif args.refresh:
            call(['kill', '-HUP', '%s' % subprocess.getoutput('pidof tor')])
            load_tables.get_ip()
        else:
            parser.print_help()
    except Exception as err:
        print(f"[!] Run as super user: {err[1]}")