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proxy_program.py
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#!/usr/bin/env python3
import dns.message # --> pip install dnspython
import dns.rdatatype
import requests # --> pip install requests
from pathlib import Path
import os
import base64
import socket
import threading
import time
import random
import winreg
import atexit
import signal
listen_PORT = 4500 # pyprox listening to 127.0.0.1:listen_PORT -- 8585?
stop_event = threading.Event()
num_fragment = 30 # total number of chunks that ClientHello devided into (chunks with random size)
fragment_sleep = 0.001 # sleep between each fragment to make GFW-cache full so it forget previous chunks. LOL.
log_every_N_sec = 15 # every 15 second , update log file with latest DNS-cache statistics
allow_insecure = True # set true to allow certificate domain mismatch in DoH
output_file = open("log.txt", "w")
DNS_url = 'https://cloudflare-dns.com/dns-query?dns='
# DNS_url = 'https://8.8.4.4/dns-query?dns=' # blocked?
# DNS_url = 'https://8.8.8.8/dns-query?dns=' # blocked?
# DNS_url = 'https://1.1.1.1/dns-query?dns=' # blocked?
# DNS_url = 'https://dns.google/dns-query?dns=' # blocked?
# DNS_url = 'https://doh.opendns.com/dns-query?dns=' # blocked?
# DNS_url = 'https://secure.avastdns.com/dns-query?dns=' # blocked?
# DNS_url = 'https://doh.libredns.gr/dns-query?dns=' # blocked?
# DNS_url = 'https://dns.electrotm.org/dns-query?dns=' # DNS server inside iran
# DNS_url = 'https://dns.bitdefender.net/dns-query?dns='
# DNS_url = 'https://cluster-1.gac.edu/dns-query?dns='
offline_DNS = {
################## DNS over HTTPS IP Address (leave it intact , it must Exist) ######################
# 'cloudflare-dns.com':'1.1.1.1', # IP filtered
# 'cloudflare-dns.com':'172.67.128.43', # any cludflare ip can be used for cloudflare DoH
# 'cloudflare-dns.com':'64.68.192.137',
'cloudflare-dns.com':'203.32.120.226',
'dns.google':'8.8.8.8', # IP filtered
'doh.opendns.com':'208.67.222.222',
'secure.avastdns.com':'185.185.133.66',
'doh.libredns.gr':'116.202.176.26',
'dns.electrotm.org':'78.157.42.100',
'dns.bitdefender.net':'34.84.232.67',
'cluster-1.gac.edu':'138.236.128.101',
##########################################################################
# ################# twitter working pack ###################
# 'ocsp.digicert.com': '192.229.211.108',
'api.twitter.com': '104.244.42.66',
'twitter.com': '104.244.42.1',
'pbs.twimg.com': '93.184.220.70',
'abs-0.twimg.com': '104.244.43.131',
'abs.twimg.com': '152.199.24.185',
'video.twimg.com': '192.229.220.133',
't.co': '104.244.42.69',
'ton.local.twitter.com':'104.244.42.1',
# ##########################################################
# ################# Instagram whatsapp facebook working pack ###################
'instagram.com': '163.70.128.174',
'www.instagram.com': '163.70.128.174',
'static.cdninstagram.com': '163.70.132.63',
'scontent.cdninstagram.com':'163.70.132.63',
'privacycenter.instagram.com': '163.70.128.174',
'help.instagram.com': '163.70.128.174',
'l.instagram.com':'163.70.128.174',
'e1.whatsapp.net':'163.70.128.60',
'e2.whatsapp.net':'163.70.128.60',
'e3.whatsapp.net':'163.70.128.60',
'e4.whatsapp.net':'163.70.128.60',
'e5.whatsapp.net':'163.70.128.60',
'e6.whatsapp.net':'163.70.128.60',
'e7.whatsapp.net':'163.70.128.60',
'e8.whatsapp.net':'163.70.128.60',
'e9.whatsapp.net':'163.70.128.60',
'e10.whatsapp.net':'163.70.128.60',
'e11.whatsapp.net':'163.70.128.60',
'e12.whatsapp.net':'163.70.128.60',
'e13.whatsapp.net':'163.70.128.60',
'e14.whatsapp.net':'163.70.128.60',
'e15.whatsapp.net':'163.70.128.60',
'e16.whatsapp.net': '163.70.128.60',
'dit.whatsapp.net': '185.60.219.60',
'g.whatsapp.net': '185.60.218.54',
'wa.me':'185.60.219.60',
'web.whatsapp.com':'31.13.83.51',
'whatsapp.net':'31.13.83.51',
'whatsapp.com':'31.13.83.51',
'cdn.whatsapp.net':'31.13.83.51',
'snr.whatsapp.net':'31.13.83.51',
'static.xx.fbcdn.net': '31.13.75.13',
'scontent-mct1-1.xx.fbcdn.net':'31.13.75.13',
'video-mct1-1.xx.fbcdn.net': '31.13.75.13',
'video.fevn1-2.fna.fbcdn.net': '185.48.241.146',
'video.fevn1-4.fna.fbcdn.net': '185.48.243.145',
'scontent.xx.fbcdn.net':'185.48.240.146',
'scontent.fevn1-1.fna.fbcdn.net': '185.48.240.145',
'scontent.fevn1-2.fna.fbcdn.net': '185.48.241.145',
'scontent.fevn1-3.fna.fbcdn.net': '185.48.242.146',
'scontent.fevn1-4.fna.fbcdn.net': '185.48.243.147',
'connect.facebook.net': '31.13.84.51',
'facebook.com':'31.13.65.49',
'developers.facebook.com': '31.13.84.8',
'about.meta.com': '163.70.128.13',
'meta.com':'163.70.128.13',
# ##########################################################
# ################# GooglePlay working pack ###################
# ##########################################################
##################### youtube working pack ################################
'ocsp.pki.goog': '172.217.16.195',
'googleads.g.doubleclick.net': '45.157.177.108',
'fonts.gstatic.com': '142.250.185.227',
'rr2---sn-vh5ouxa-hju6.googlevideo.com': '213.202.6.141',
'jnn-pa.googleapis.com': '45.157.177.108',
'static.doubleclick.net': '202.61.195.218',
'rr4---sn-hju7en7k.googlevideo.com': '74.125.167.74',
'rr1---sn-hju7en7r.googlevideo.com': '74.125.167.87',
'play.google.com': '142.250.184.238',
'rr3---sn-vh5ouxa-hjuz.googlevideo.com': '134.0.218.206',
'rr3---sn-hju7enel.googlevideo.com': '74.125.98.40',
'download.visualstudio.microsoft.com': '68.232.34.200',
'ocsp.pki.goog': '172.217.16.195',
'i.ytimg.com': '142.250.186.150',
'rr2---sn-hju7enel.googlevideo.com': '74.125.98.39',
'rr2---sn-hju7en7k.googlevideo.com': '74.125.167.72',
'googleads.g.doubleclick.net': '45.157.177.108',
'rr3---sn-4g5lznl6.googlevideo.com': '74.125.173.40',
'jnn-pa.googleapis.com': '89.58.57.45',
'rr3---sn-hju7en7k.googlevideo.com': '74.125.167.73',
'rr1---sn-hju7enll.googlevideo.com': '74.125.98.6',
'rr6---sn-hju7en7r.googlevideo.com': '74.125.167.92',
'play.google.com': '216.58.212.174',
'www.gstatic.com': '142.250.185.99',
'apis.google.com': '172.217.23.110',
'adservice.google.com': '202.61.195.218',
'mail.google.com': '142.250.186.37',
'accounts.google.com': '172.217.16.205',
'lh3.googleusercontent.com': '193.26.157.66',
'accounts.youtube.com': '172.217.16.206',
'ssl.gstatic.com': '142.250.184.195',
'fonts.gstatic.com': '172.217.23.99',
'rr4---sn-hju7enll.googlevideo.com': '74.125.98.9',
'rr2---sn-hju7enll.googlevideo.com': '74.125.98.7',
'rr1---sn-hju7enel.googlevideo.com': '74.125.98.38',
'rr5---sn-vh5ouxa-hjuz.googlevideo.com': '134.0.218.208',
'i1.ytimg.com': '172.217.18.14',
'plos.org': '162.159.135.42',
'fonts.googleapis.com': '89.58.57.45',
'genweb.plos.org': '104.26.1.141',
'static.ads-twitter.com': '146.75.120.157',
'www.google-analytics.com': '142.250.185.174',
'rr1---sn-vh5ouxa-hju6.googlevideo.com': '213.202.6.140',
'rr5---sn-vh5ouxa-hju6.googlevideo.com': '213.202.6.144',
'rr3---sn-hju7enel.googlevideo.com': '74.125.98.40',
'rr5---sn-nv47zn7y.googlevideo.com': '173.194.15.74',
'rr1---sn-vh5ouxa-hju6.googlevideo.com': '213.202.6.140',
'safebrowsing.googleapis.com': '202.61.195.218',
'static.doubleclick.net': '193.26.157.66',
'rr5---sn-vh5ouxa-hju6.googlevideo.com': '213.202.6.144',
'rr1---sn-hju7en7r.googlevideo.com': '74.125.167.87',
'rr4---sn-vh5ouxa-hju6.googlevideo.com': '213.202.6.143',
'rr4---sn-hju7en7r.googlevideo.com': '74.125.167.90',
'r1---sn-hju7enel.googlevideo.com': '74.125.98.38',
'rr1---sn-nv47zn7r.googlevideo.com': '173.194.15.38',
'rr2---sn-vh5ouxa-hjuz.googlevideo.com': '134.0.218.205',
'rr4---sn-nv47zn7r.googlevideo.com': '173.194.15.41',
'rr4---sn-hju7en7r.googlevideo.com': '74.125.167.90',
'www.google.com': '142.250.186.36',
# 'www.google.com': '216.239.38.120',
'youtube.com':'216.239.38.120',
'www.youtube.com':'216.239.38.120',
'i.ytimg.com':'216.239.38.120',
# 'yt3.ggpht.com': '64.233.165.198', # filtered
# 'yt3.ggpht.com': '142.250.179.161', # filtered
# 'yt3.ggpht.com': '142.250.186.65', # sometimes work
'yt3.ggpht.com': '142.250.186.36', # most of times work
#######################################################
}
# ignore description below , its for old code , just leave it intact.
my_socket_timeout = 21 # default for google is ~21 sec , recommend 60 sec unless you have low ram and need close soon
first_time_sleep = 0.1 # speed control , avoid server crash if huge number of users flooding
accept_time_sleep = 0.01 # avoid server crash on flooding request -> max 100 sockets per second
DNS_cache = {} # resolved domains
IP_DL_traffic = {} # download usage for each ip
IP_UL_traffic = {} # upload usage for each ip
class DNS_over_Fragment:
def __init__(self):
self.url = DNS_url
self.req = requests.session()
self.fragment_proxy = {
'https': 'http://127.0.0.1:'+str(listen_PORT)
}
def query(self,server_name):
offline_ip = offline_DNS.get(server_name,None)
if(offline_ip!=None):
print('offline DNS -->',server_name,offline_ip,file=output_file)
return offline_ip
cache_ip = DNS_cache.get(server_name,None)
if(cache_ip!=None):
print('cached DNS -->',server_name,cache_ip,file=output_file)
return cache_ip
quary_params = {
# 'name': server_name, # no need for this when using dns wire-format , cause 400 err on some server
'type': 'A',
'ct': 'application/dns-message',
}
print(f'online DNS Query',server_name,file=output_file)
try:
query_message = dns.message.make_query(server_name,'A')
query_wire = query_message.to_wire()
query_base64 = base64.urlsafe_b64encode(query_wire).decode('utf-8')
query_base64 = query_base64.replace('=','') # remove base64 padding to append in url
query_url = self.url + query_base64
ans = self.req.get( query_url , params=quary_params , headers={'accept': 'application/dns-message'} , proxies=self.fragment_proxy , verify=(not allow_insecure))
# Parse the response as a DNS packet
if ans.status_code == 200 and ans.headers.get('content-type') == 'application/dns-message':
answer_msg = dns.message.from_wire(ans.content)
resolved_ip = None
for x in answer_msg.answer:
if (x.rdtype == dns.rdatatype.A):
resolved_ip = x[0].address # pick first ip in DNS answer
DNS_cache[server_name] = resolved_ip
print("################# DNS Cache is : ####################",file=output_file)
print(DNS_cache,file=output_file) # print DNS cache , it usefull to track all resolved IPs , to be used later.
print("#####################################################",file=output_file)
break
print(f'online DNS --> Resolved {server_name} to {resolved_ip}',file=output_file)
return resolved_ip
else:
print(f'Error: {ans.status_code} {ans.reason}',file=output_file)
except Exception as e:
print(repr(e),file=output_file)
class ThreadedServer(object):
def __init__(self, host, port):
self.DoH = DNS_over_Fragment()
self.host = host
self.port = port
self.sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
self.sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
self.sock.bind((self.host, self.port))
def listen(self):
self.sock.listen(128) # up to 128 concurrent unaccepted socket queued , the more is refused untill accepting those.
while not stop_event.is_set():
client_sock , client_addr = self.sock.accept()
client_sock.settimeout(my_socket_timeout)
time.sleep(accept_time_sleep) # avoid server crash on flooding request
thread_up = threading.Thread(target = self.my_upstream , args =(client_sock,) )
thread_up.daemon = True #avoid memory leak by telling os its belong to main program , its not a separate program , so gc collect it when thread finish
thread_up.start()
def handle_client_request(self,client_socket):
# Receive the CONNECT request from the client
data = client_socket.recv(16384)
if(data[:7]==b'CONNECT'):
server_name , server_port = self.extract_servername_and_port(data)
elif( (data[:3]==b'GET')
or (data[:4]==b'POST')
or (data[:4]==b'HEAD')
or (data[:7]==b'OPTIONS')
or (data[:3]==b'PUT')
or (data[:6]==b'DELETE')
or (data[:5]==b'PATCH')
or (data[:5]==b'TRACE') ):
q_line = str(data).split('\r\n')
q_req = q_line[0].split()
q_method = q_req[0]
q_url = q_req[1]
q_url = q_url.replace('http://','https://')
print('************************@@@@@@@@@@@@***************************',file=output_file)
print('redirect',q_method,'http to HTTPS',q_url,file=output_file)
response_data = 'HTTP/1.1 302 Found\r\nLocation: '+q_url+'\r\nProxy-agent: MyProxy/1.0\r\n\r\n'
client_socket.sendall(response_data.encode())
client_socket.close()
return None
else:
print('Unknown Method',str(data[:10]),file=output_file)
response_data = b'HTTP/1.1 400 Bad Request\r\nProxy-agent: MyProxy/1.0\r\n\r\n'
client_socket.sendall(response_data)
client_socket.close()
return None
print(server_name,'-->',server_port,file=output_file)
try:
server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
server_socket.settimeout(my_socket_timeout)
server_socket.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1) #force localhost kernel to send TCP packet immediately (idea: @free_the_internet)
try:
socket.inet_aton(server_name)
# print('legal IP')
server_IP = server_name
except socket.error:
# print('Not IP , its domain , try to resolve it')
server_IP = self.DoH.query(server_name)
try:
server_socket.connect((server_IP, server_port))
# Send HTTP 200 OK
response_data = b'HTTP/1.1 200 Connection established\r\nProxy-agent: MyProxy/1.0\r\n\r\n'
client_socket.sendall(response_data)
return server_socket
except socket.error:
print("@@@ "+server_IP+":"+str(server_port)+ " ==> filtered @@@",file=output_file)
# Send HTTP ERR 502
response_data = b'HTTP/1.1 502 Bad Gateway (is IP filtered?)\r\nProxy-agent: MyProxy/1.0\r\n\r\n'
client_socket.sendall(response_data)
client_socket.close()
server_socket.close()
return server_IP
except Exception as e:
print(repr(e),file=output_file)
# Send HTTP ERR 502
response_data = b'HTTP/1.1 502 Bad Gateway (Strange ERR?)\r\nProxy-agent: MyProxy/1.0\r\n\r\n'
client_socket.sendall(response_data)
client_socket.close()
server_socket.close()
return None
def my_upstream(self, client_sock):
first_flag = True
backend_sock = self.handle_client_request(client_sock)
if(backend_sock==None):
client_sock.close()
return False
if( isinstance(backend_sock,str) ):
this_ip = backend_sock
if(this_ip not in IP_UL_traffic):
IP_UL_traffic[this_ip] = 0
IP_DL_traffic[this_ip] = 0
client_sock.close()
return False
this_ip = backend_sock.getpeername()[0]
if(this_ip not in IP_UL_traffic):
IP_UL_traffic[this_ip] = 0
IP_DL_traffic[this_ip] = 0
while not stop_event.is_set():
try:
if( first_flag == True ):
first_flag = False
time.sleep(first_time_sleep) # speed control + waiting for packet to fully recieve
data = client_sock.recv(16384)
#print('len data -> ',str(len(data)))
#print('user talk :')
if data:
thread_down = threading.Thread(target = self.my_downstream , args = (backend_sock , client_sock) )
thread_down.daemon = True
thread_down.start()
# backend_sock.sendall(data)
send_data_in_fragment(data,backend_sock)
IP_UL_traffic[this_ip] = IP_UL_traffic[this_ip] + len(data)
else:
raise Exception('cli syn close')
else:
data = client_sock.recv(16384)
if data:
backend_sock.sendall(data)
IP_UL_traffic[this_ip] = IP_UL_traffic[this_ip] + len(data)
else:
raise Exception('cli pipe close')
except Exception as e:
#print('upstream : '+ repr(e) )
time.sleep(2) # wait two second for another thread to flush
client_sock.close()
backend_sock.close()
return False
def my_downstream(self, backend_sock , client_sock):
this_ip = backend_sock.getpeername()[0]
first_flag = True
while not stop_event.is_set():
try:
if( first_flag == True ):
first_flag = False
data = backend_sock.recv(16384)
if data:
client_sock.sendall(data)
IP_DL_traffic[this_ip] = IP_DL_traffic[this_ip] + len(data)
else:
raise Exception('backend pipe close at first')
else:
data = backend_sock.recv(16384)
if data:
client_sock.sendall(data)
IP_DL_traffic[this_ip] = IP_DL_traffic[this_ip] + len(data)
else:
raise Exception('backend pipe close')
except Exception as e:
#print('downstream '+backend_name +' : '+ repr(e))
time.sleep(2) # wait two second for another thread to flush
backend_sock.close()
client_sock.close()
return False
def extract_servername_and_port(self,data):
host_and_port = str(data).split()[1]
host,port = host_and_port.split(':')
return (host,int(port))
def merge_all_dicts():
full_DNS = {**DNS_cache, **offline_DNS} # merge two dict , need python 3.5 or up
inv_DNS = { v:k for k,v in full_DNS.items()} # inverse mapping to look for domain given ip
stats = {}
for ip in IP_UL_traffic:
up = round(IP_UL_traffic[ip]/(1024.0),3)
down = round(IP_DL_traffic[ip]/(1024.0),3)
host = inv_DNS.get(ip,'?')
if( (down<1.0) ): # download below 1KB
maybe_filter = ' yes'
else:
maybe_filter = '-------'
su = f'UL={up} KB:'
sd = f'DL={down} KB:'
sf = f'filtered={maybe_filter}:'
sh = f'Host={host}:'
stats[ip] = ':'+su+sd+sf+sh
return stats
# only run in separate thread
def log_writer():
file_name = 'DNS_IP_traffic_info.txt'
BASE_DIR = Path(__file__).resolve().parent
log_file_path = os.path.join(BASE_DIR,file_name)
with open(log_file_path, "w") as f:
while not stop_event.is_set():
time.sleep(log_every_N_sec)
all_stats_info = merge_all_dicts()
f.seek(0)
f.write('\n########### new DNS resolved : ##############\n')
f.write(str(DNS_cache).replace(',',',\n'))
f.write('\n#############################################\n')
f.write('\n########### ALL INFO : ######################\n')
f.write(str(all_stats_info).replace('\'','').replace(',','\n').replace(':','\t'))
f.write('\n#############################################\n')
f.flush()
f.truncate()
print("info file writed to",f.name ,file=output_file)
def start_log_writer():
thread_log = threading.Thread(target = log_writer , args = () )
thread_log.daemon = True
thread_log.start()
def send_data_in_fragment(data , sock):
L_data = len(data)
indices = random.sample(range(1,L_data-1), num_fragment-1)
indices.sort()
# print('indices=',indices)
i_pre=0
for i in indices:
fragment_data = data[i_pre:i]
i_pre=i
# print('send ',len(fragment_data),' bytes')
# sock.send(fragment_data)
sock.sendall(fragment_data)
time.sleep(fragment_sleep)
fragment_data = data[i_pre:L_data]
sock.sendall(fragment_data)
print('----------finish------------',file=output_file)
# def set_proxy(proxy):
# """
# Set the proxy settings in Windows Registry
# """
# winreg.SetValueEx(INTERNET_SETTINGS, "ProxyEnable", 0, winreg.REG_DWORD, 1)
# winreg.SetValueEx(INTERNET_SETTINGS, "ProxyServer", 0, winreg.REG_SZ, proxy)
# def unset_proxy():
# """
# Unset the proxy settings in Windows Registry
# """
# winreg.SetValueEx(INTERNET_SETTINGS, "ProxyEnable", 0, winreg.REG_DWORD, 0)
# winreg.SetValueEx(INTERNET_SETTINGS, "ProxyServer", 0, winreg.REG_SZ, '')
# def exit_handler():
# print('Exiting program: clearing proxy...')
# unset_proxy()
# def signal_handler(signum, frame):
# print('Closing program: executing atexit functions...')
# exit_handler()
# exit(signum)
def run_it(provider):
global num_fragment
if stop_event:
stop_event.clear()
if provider=='irancell':
num_fragment=10
elif provider=='hamrah':
num_fragment=80
print("program start")
start_log_writer()
("Now listening at: 127.0.0.1:"+str(listen_PORT),'\n for checking connection is stable check log file')
# set_proxy('127.0.0.1:4500')
ThreadedServer('',listen_PORT).listen()
# atexit.register(exit_handler)
# signal.signal(signal.SIGINT, signal_handler)
def stop():
stop_event.set()
print("stoped 2/2")