├── LICENSE ├── README-FA.md ├── README.md ├── main.py └── stuff ├── __pycache__ ├── pyprox_tcp.cpython-310.pyc └── pyprox_tcp_randchunk.cpython-310.pyc ├── funcs.py ├── launcher.py ├── pyprox_tcp.py └── pyprox_tcp_randchunk.py /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | 635 | Copyright (C) 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /README-FA.md: -------------------------------------------------------------------------------- 1 | # CFuzzy 2 | 3 |
4 | 5 | این برنامه صرفا جهت امور آموزشی و آزمایشی (!) ایجاد شده و مسئولیت استفاده از آن به عهده ی خود شماست. 6 | 7 | ## این چیه ؟ 8 | این برنامه یک رابط گرافیکی برای [این برنامه ی شاهکار](https://github.com/GFW-knocker/gfw_resist_tls_proxy) هست که به شما کمک میکنه تا درخواست هاتون به سمت کلادفلر راحت تر ارسال بشه و از فایروالهای مزاحم مثل GFW و امثال اون عبور بده. 9 | ## خب حالا چطوری ازش استفاده کنیم‌ ؟ 10 | روی لینوکس میتونید از دستور زیر استفاده کنید تا براتون نصب و اجرا بشه 11 | ```console 12 | wget "https://github.com/Ali-Frh/CFuzzy/archive/refs/heads/main.zip" && unzip main.zip && cd CFuzzy-main && python3 main.py 13 | ``` 14 | اگر پکیج tk براتون نصب نیست و موقع اجرا شدن اروری دیدین، برید از پکیج منیجر نصبش کنید (با همین نام در مخازن دبین، آرچ، اوبونتو، فدورا و ...) 15 | برای ویندوز و سیستم عامل های دیگه هم برید فایل ریلیز رو دانلود کنید و main.py رو اجرا کنید. 16 | 17 | ## چرا این برنامه ظاهرش کهنه هست ؟ 18 | چون این برنامه رو با یک مجموعه ی ابزار گرافیکی به نام tkinter تهیه کردم که یک برنامه ی قدیمی است و ظاهر آن زیاد جالب نیست منتها در نسخه ی استاندارد پایتون جای دارد و در نتیجه باعث حجم بسیار کم فایل های خروجی، ساده بودن دستورات و ... میشود. 19 | 20 | 21 | ## چرا این برنامه رو ایجاد کردم ؟ 22 | جهت تغییر راحت تر متغییر های برنامه توسط کاربران و تستر های عزیز 23 | 24 | ## تغییرات فایل pyprox_tcp.py ما و نسخه ی اصلی 25 | چون این پروژه بسیار فعال است و ممکن است مدام تغییر کند و اینکه توسط افراد خبره ی شبکه در دست توسعه هست، صلاح دانستم در این فایل صرفا تغییراتی جهت سازگاری با رابط کاربری ایجاد کنم و آن تغییرات را با کامنت #CFuzzy در کد مشخص نمودم، 26 | تغییر دیگری به جز این مورد در کد اصلی ایجاد نمیشود. 27 | 28 | ## لایسنس 29 | مایل بودم از MIT استفاده کنم منتها پروژه ی اصلی از GPL-3 بهره می برد، پس ... 30 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # CFuzzy 2 | 3 |
4 | 5 | [**خواندن این متن به زبان فارسی**](https://github.com/Ali-Frh/CFuzzy/blob/main/README-FA.md) 6 | 7 | ## So, wtf is this ? 8 | its a gui made for [This Masterpiece](https://github.com/GFW-knocker/gfw_resist_tls_proxy) code which make some socket stuff to your cloudflare requestes and get it pass through Goofy Firewall (GFW) and similar ones. 9 | 10 | ## How to use it? 11 | ```console 12 | wget "https://github.com/Ali-Frh/CFuzzy/archive/refs/heads/main.zip" && unzip main.zip && cd CFuzzy-main && python3 main.py 13 | ``` 14 | 15 | or even make a shortcut for main.py and double-click on it. 16 | ps. If you Use **Linux**, make sure you have **tk** Package. (available in Arch/Debian/Ubuntu/Fedora etc. Repos) 17 | 18 | 19 | ## Why this app looks ancient ? 20 | because i made it with Tkinter which is a ancient graphical toolkit, it doesnt look good but it is included in python3 standard package, it has simple syntax, small size, ... 21 | 22 | ## Why you made this ? 23 | to change their value and using it easier for users and testers. 24 | 25 | ## My pyprox_tcp.py Differences to the Original one 26 | ~~added some random.randint() feature to send_data_in_fragment() function, which suggested by [This Dude](https://twitter.com/joje_twit/status/1651341798046826496)~~ 27 | i will not tweaking the tcpproxy script anymore because the original project is very active and i just modify the script for make it compatible with the GUI. 28 | ps. I clearified my additions by #CFuzzy comment in the code. 29 | 30 | ## TODO: 31 | ~~- make this thing save last settings when closed.~~ ✔ v1.1 32 | ~~- adding Farsi Tutorial 33 | - adding an internal xray core for supporting yt feature and more. 34 | - maybe making a server choosing menu from (yebekhe/cf-clean-ip-resolver) 35 | - maybe adding Farsi 36 | - maybe adding some server killer feature in case that you closed app accidentally 37 | 38 | ## License 39 | i was wanted to choose MIT but the original project used GPL-3, so... 40 | -------------------------------------------------------------------------------- /main.py: -------------------------------------------------------------------------------- 1 | import os 2 | import time,sys 3 | import threading 4 | from tkinter import * 5 | from tkinter.ttk import Progressbar 6 | from tkinter import messagebox 7 | import subprocess 8 | import stuff.funcs as funcs 9 | import webbrowser 10 | 11 | def doinshit(): 12 | print("called") 13 | global doing 14 | global logging 15 | global server 16 | global RFrag 17 | toggle["state"] = "disabled" 18 | #time.sleep(1) 19 | if doing == True: 20 | toggle["text"] = "Start Server" 21 | server.terminate() 22 | doing = False 23 | else: 24 | doing = True 25 | server = subprocess.Popen(["python3","stuff/launcher.py",f"{svport.get()}", 26 | f"{cfip.get()}", 27 | f"{cfport.get()}", 28 | f"{l_fragment.get()}", 29 | f"{fragment_sleep.get()}", 30 | f"{my_socket_timeout.get()}", 31 | f"{first_time_sleep.get()}", 32 | f"{accept_time_sleep.get()}", 33 | f"{RFrag.get()}"]) 34 | print("RF",RFrag.get()) 35 | 36 | ## Saving Config 37 | global settings 38 | settings = { 39 | "svport": f"{svport.get()}", 40 | "cfip": f"{cfip.get()}", 41 | "cfport": f"{cfport.get()}", 42 | "l_fragment": f"{l_fragment.get()}", 43 | "fragment_sleep": f"{fragment_sleep.get()}", 44 | "my_socket_timeout":f"{my_socket_timeout.get()}", 45 | "first_time_sleep": f"{first_time_sleep.get()}", 46 | "accept_time_sleep":f"{accept_time_sleep.get()}", 47 | "randfrag": f"{RFrag.get()}" 48 | } 49 | 50 | funcs.save_settings(settings) 51 | 52 | 53 | 54 | 55 | toggle["text"] = "Stop Server" 56 | 57 | toggle["state"] = "normal" 58 | 59 | server = False 60 | 61 | # settings = {} 62 | settings = funcs.load_settings() 63 | 64 | # print(settings) 65 | 66 | doing = False 67 | root = Tk() 68 | RFrag = BooleanVar() 69 | RFrag.set(settings["randfrag"]) 70 | root.title("CFuzzy v1.0") 71 | root.geometry("550x520") 72 | #root['background']='#e4e4e4' 73 | #root.configure(bg='blue') 74 | 75 | Label(text="CFuzzy Server v1.1",font=('Times 20'),height=4).pack(side=TOP) 76 | 77 | 78 | Label(text="Basic Configuration",font=('Times 15'),height=0).pack(side=TOP) 79 | 80 | #row 1 81 | row_1 = Frame(root) 82 | 83 | 84 | svportlb = Label(row_1,text="Server Port: ", height=1) 85 | svportlb.grid(row=1,column=1) 86 | svport = Entry(row_1,width=7) 87 | svport.insert(INSERT, settings["svport"]) 88 | svport.grid(row=1,column=2) 89 | 90 | #cfip 91 | cflabel = Label(row_1,text=" CF IP: ") 92 | cflabel.grid(row=1,column=3) 93 | cfip = Entry(row_1,width=15) 94 | cfip.insert(INSERT, settings["cfip"]) 95 | cfip.grid(row=1,column=4) 96 | 97 | #cfip 98 | cfportlb = Label(row_1,text=" CF Port: ",height=4) 99 | cfportlb.grid(row=1,column=5) 100 | cfport = Entry(row_1,width=7) 101 | cfport.insert(INSERT, settings["cfport"]) 102 | cfport.grid(row=1,column=6) 103 | 104 | row_1.pack(side=TOP) 105 | 106 | Label(text="Advanced Configuration",font=('Times 15'),height=0).pack(side=TOP) 107 | Label(text="Dont touch it if you dont know what you doing!",font=('Times 10'),height=2).pack(side=TOP) 108 | 109 | 110 | row_2 = Frame(root) 111 | 112 | l_fragmentlb = Label(row_2,text="L_Fragment: ") 113 | l_fragmentlb.grid(row=1,column=1) 114 | l_fragment = Entry(row_2,width=4) 115 | l_fragment.insert(INSERT, settings["l_fragment"]) 116 | l_fragment.grid(row=1,column=2) 117 | 118 | fragment_sleep_lb = Label(row_2,text=" fragment_sleep: ") 119 | fragment_sleep_lb.grid(row=1,column=3) 120 | fragment_sleep = Entry(row_2,width=4) 121 | fragment_sleep.insert(INSERT, settings["fragment_sleep"]) 122 | fragment_sleep.grid(row=1,column=4) 123 | 124 | my_socket_timeout_lb = Label(row_2,text=" my_socket_timeout: ") 125 | my_socket_timeout_lb.grid(row=1,column=5) 126 | my_socket_timeout = Entry(row_2,width=4) 127 | my_socket_timeout.insert(INSERT, settings["my_socket_timeout"]) 128 | my_socket_timeout.grid(row=1,column=6) 129 | 130 | first_time_sleeplb = Label(row_2,text="first_time_sleep: ",height=2) 131 | first_time_sleeplb.grid(row=2,column=1) 132 | first_time_sleep = Entry(row_2,width=4) 133 | first_time_sleep.insert(INSERT, settings["first_time_sleep"]) 134 | first_time_sleep.grid(row=2,column=2) 135 | 136 | accept_time_sleeplb = Label(row_2,text=" accept_time_sleep: ",height=2) 137 | accept_time_sleeplb.grid(row=2,column=3) 138 | accept_time_sleep = Entry(row_2,width=4) 139 | accept_time_sleep.insert(INSERT, settings["accept_time_sleep"]) 140 | accept_time_sleep.grid(row=2,column=4) 141 | 142 | randfraglb = Label(row_2,text=" Random Fragments: ",height=2) 143 | randfraglb.grid(row=2,column = 5) 144 | randfrag = Checkbutton(row_2,variable=RFrag, onvalue=True, offvalue=False) 145 | randfrag.grid(row=2,column = 6) 146 | 147 | row_2.pack(side=TOP) 148 | 149 | spacer1 = Label(text="",height=2) 150 | spacer1.pack(side = TOP) 151 | 152 | ControlFrame = Frame(root) 153 | 154 | 155 | toggle = Button(ControlFrame, text="Start Server", width=10, height=2, font=('Times 15'), command=doinshit) 156 | toggle.pack(side=TOP) 157 | 158 | ControlFrame.pack(side=TOP) 159 | 160 | 161 | # Link to Repo for further issues and stuff. 162 | 163 | def callback(url): 164 | webbrowser.open_new_tab(url) 165 | 166 | 167 | link = Label(root, text="Project's Repo: https://github.com/Ali-Frh/CFuzzy", 168 | font=('Helveticabold', 10), fg="blue", cursor="hand2", height="2") 169 | link.pack(side=BOTTOM) 170 | link.bind("", lambda e: 171 | callback("https://github.com/Ali-Frh/CFuzzy")) 172 | 173 | 174 | root.mainloop() 175 | -------------------------------------------------------------------------------- /stuff/__pycache__/pyprox_tcp.cpython-310.pyc: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Ali-Frh/CFuzzy/44b4c84e0589df0e889b7d9ef9f978a421806055/stuff/__pycache__/pyprox_tcp.cpython-310.pyc -------------------------------------------------------------------------------- /stuff/__pycache__/pyprox_tcp_randchunk.cpython-310.pyc: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Ali-Frh/CFuzzy/44b4c84e0589df0e889b7d9ef9f978a421806055/stuff/__pycache__/pyprox_tcp_randchunk.cpython-310.pyc -------------------------------------------------------------------------------- /stuff/funcs.py: -------------------------------------------------------------------------------- 1 | import json 2 | import os 3 | 4 | settings_path = ".cfuzzy.conf" 5 | 6 | ## data template 7 | template = { 8 | "svport": "2500", 9 | "cfip": "162.159.135.42", 10 | "cfport": "443", 11 | "l_fragment": "77", 12 | "fragment_sleep": "0.2", 13 | "my_socket_timeout":"60", 14 | "first_time_sleep": "0.01", 15 | "accept_time_sleep":"0.01", 16 | "randfrag": False 17 | } 18 | 19 | 20 | 21 | def load_settings(): 22 | if os.path.exists(settings_path): 23 | z = open(settings_path,"r") 24 | data = z.read() 25 | z.close() 26 | 27 | ## check file corruption 28 | try: 29 | loaded_data = json.loads(data) 30 | return loaded_data 31 | except: 32 | print("Corrupted Data") 33 | return template 34 | else: 35 | return template 36 | 37 | def save_settings(data): 38 | z = open(settings_path,"w") 39 | z.write(json.dumps(data)) 40 | z.close() 41 | return True 42 | -------------------------------------------------------------------------------- /stuff/launcher.py: -------------------------------------------------------------------------------- 1 | import sys 2 | 3 | # print(type(sys.argv[9])) 4 | 5 | if str(sys.argv[9]) == "True": 6 | import pyprox_tcp_randchunk as pyprox_tcp 7 | else: 8 | import pyprox_tcp 9 | 10 | pyprox_tcp.listen_PORT = int(sys.argv[1]) 11 | pyprox_tcp.Cloudflare_IP = str(sys.argv[2]) 12 | pyprox_tcp.Cloudflare_port = int(sys.argv[3]) 13 | pyprox_tcp.L_fragment = int(sys.argv[4]) 14 | pyprox_tcp.fragment_sleep = float(sys.argv[5]) 15 | pyprox_tcp.my_socket_timeout= int(sys.argv[6]) 16 | pyprox_tcp.first_time_sleep = float(sys.argv[7]) 17 | pyprox_tcp.accept_time_sleep= float(sys.argv[8]) 18 | # pyprox_tcp.RFrag = bool(sys.argv[9]) 19 | 20 | 21 | pyprox_tcp.ThreadedServer('',int(sys.argv[1])).listen() 22 | -------------------------------------------------------------------------------- /stuff/pyprox_tcp.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env python3 2 | # downloaded in 28 apr 2023 2:44 PM IRST 3 | 4 | 5 | import socket 6 | import threading 7 | from pathlib import Path 8 | import os 9 | import copy 10 | import time 11 | import datetime 12 | import logging 13 | from logging.handlers import TimedRotatingFileHandler 14 | 15 | print("PyproxTCP Intialized") #CFuzzy 16 | if os.name == 'posix': 17 | print('os is linux') 18 | import resource # ( -> pip install python-resources ) 19 | # set linux max_num_open_socket from 1024 to 128k 20 | resource.setrlimit(resource.RLIMIT_NOFILE, (127000, 128000)) 21 | 22 | 23 | 24 | listen_PORT = 2500 # pyprox listening to 127.0.0.1:listen_PORT 25 | 26 | Cloudflare_IP = '162.159.135.42' # plos.org (can be any dirty cloudflare ip) 27 | Cloudflare_port = 443 28 | 29 | L_fragment = 77 # length of fragments of Client Hello packet (L_fragment Byte in each chunk) 30 | fragment_sleep = 0.2 # sleep between each fragment to make GFW-cache full so it forget previous chunks. LOL. 31 | 32 | 33 | 34 | # ignore description below , its for old code , just leave it intact. 35 | my_socket_timeout = 60 # default for google is ~21 sec , recommend 60 sec unless you have low ram and need close soon 36 | first_time_sleep = 0.01 # speed control , avoid server crash if huge number of users flooding (default 0.1) 37 | accept_time_sleep = 0.01 # avoid server crash on flooding request -> max 100 sockets per second 38 | 39 | 40 | 41 | class ThreadedServer(object): 42 | def __init__(self, host, port): 43 | self.host = host 44 | self.port = port 45 | self.sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) 46 | self.sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1) 47 | self.sock.bind((self.host, self.port)) 48 | 49 | def listen(self): 50 | self.sock.listen(128) # up to 128 concurrent unaccepted socket queued , the more is refused untill accepting those. 51 | while True: 52 | client_sock , client_addr = self.sock.accept() 53 | client_sock.settimeout(my_socket_timeout) 54 | 55 | #print('someone connected') 56 | time.sleep(accept_time_sleep) # avoid server crash on flooding request 57 | thread_up = threading.Thread(target = self.my_upstream , args =(client_sock,) ) 58 | 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 59 | thread_up.start() 60 | 61 | 62 | def my_upstream(self, client_sock): 63 | first_flag = True 64 | backend_sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) 65 | backend_sock.settimeout(my_socket_timeout) 66 | backend_sock.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1) #force localhost kernel to send TCP packet immediately (idea: @free_the_internet) 67 | 68 | while True: 69 | try: 70 | if( first_flag == True ): 71 | first_flag = False 72 | 73 | time.sleep(first_time_sleep) # speed control + waiting for packet to fully recieve 74 | data = client_sock.recv(16384) 75 | #print('len data -> ',str(len(data))) 76 | #print('user talk :') 77 | 78 | if data: 79 | backend_sock.connect((Cloudflare_IP,Cloudflare_port)) 80 | thread_down = threading.Thread(target = self.my_downstream , args = (backend_sock , client_sock) ) 81 | thread_down.daemon = True 82 | thread_down.start() 83 | # backend_sock.sendall(data) 84 | send_data_in_fragment(data,backend_sock) 85 | 86 | else: 87 | raise Exception('cli syn close') 88 | 89 | else: 90 | data = client_sock.recv(4096) 91 | if data: 92 | backend_sock.sendall(data) 93 | else: 94 | raise Exception('cli pipe close') 95 | 96 | except Exception as e: 97 | #print('upstream : '+ repr(e) ) 98 | time.sleep(2) # wait two second for another thread to flush 99 | client_sock.close() 100 | backend_sock.close() 101 | return False 102 | 103 | 104 | 105 | 106 | def my_downstream(self, backend_sock , client_sock): 107 | first_flag = True 108 | while True: 109 | try: 110 | if( first_flag == True ): 111 | first_flag = False 112 | data = backend_sock.recv(16384) 113 | if data: 114 | client_sock.sendall(data) 115 | else: 116 | raise Exception('backend pipe close at first') 117 | 118 | else: 119 | data = backend_sock.recv(4096) 120 | if data: 121 | client_sock.sendall(data) 122 | else: 123 | raise Exception('backend pipe close') 124 | 125 | except Exception as e: 126 | #print('downstream '+backend_name +' : '+ repr(e)) 127 | time.sleep(2) # wait two second for another thread to flush 128 | backend_sock.close() 129 | client_sock.close() 130 | return False 131 | 132 | 133 | def send_data_in_fragment(data , sock): 134 | 135 | for i in range(0, len(data), L_fragment): 136 | fragment_data = data[i:i+L_fragment] 137 | print('send ',len(fragment_data),' bytes') 138 | 139 | # sock.send(fragment_data) 140 | sock.sendall(fragment_data) 141 | 142 | time.sleep(fragment_sleep) 143 | 144 | print('----------finish------------') 145 | 146 | 147 | 148 | 149 | -------------------------------------------------------------------------------- /stuff/pyprox_tcp_randchunk.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env python3 2 | 3 | import socket 4 | import threading 5 | from pathlib import Path 6 | import os 7 | import copy 8 | import time 9 | import datetime 10 | import logging 11 | import random 12 | from logging.handlers import TimedRotatingFileHandler 13 | 14 | print("RandChunk Intialized") #CFuzzy 15 | if os.name == 'posix': 16 | print('os is linux') 17 | import resource # ( -> pip install python-resources ) 18 | # set linux max_num_open_socket from 1024 to 128k 19 | resource.setrlimit(resource.RLIMIT_NOFILE, (127000, 128000)) 20 | 21 | 22 | 23 | listen_PORT = 2500 # pyprox listening to 127.0.0.1:listen_PORT 24 | 25 | Cloudflare_IP = '162.159.135.42' # plos.org (can be any dirty cloudflare ip) 26 | # Cloudflare_IP = '162.159.36.93' # 27 | 28 | Cloudflare_port = 443 29 | 30 | num_fragment = 67 # total number of chunks that ClientHello devided into (chunks with random size) 31 | fragment_sleep = 0.001 # sleep between each fragment to make GFW-cache full so it forget previous chunks. LOL. 32 | 33 | 34 | 35 | # ignore description below , its for old code , just leave it intact. 36 | my_socket_timeout = 21 # default for google is ~21 sec , recommend 60 sec unless you have low ram and need close soon 37 | first_time_sleep = 0.1 # speed control , avoid server crash if huge number of users flooding 38 | accept_time_sleep = 0.01 # avoid server crash on flooding request -> max 100 sockets per second 39 | 40 | 41 | 42 | class ThreadedServer(object): 43 | def __init__(self, host, port): 44 | self.host = host 45 | self.port = port 46 | self.sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) 47 | self.sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1) 48 | self.sock.bind((self.host, self.port)) 49 | 50 | def listen(self): 51 | self.sock.listen(128) # up to 128 concurrent unaccepted socket queued , the more is refused untill accepting those. 52 | while True: 53 | client_sock , client_addr = self.sock.accept() 54 | client_sock.settimeout(my_socket_timeout) 55 | 56 | #print('someone connected') 57 | time.sleep(accept_time_sleep) # avoid server crash on flooding request 58 | thread_up = threading.Thread(target = self.my_upstream , args =(client_sock,) ) 59 | 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 60 | thread_up.start() 61 | 62 | 63 | def my_upstream(self, client_sock): 64 | first_flag = True 65 | backend_sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) 66 | backend_sock.settimeout(my_socket_timeout) 67 | backend_sock.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1) #force localhost kernel to send TCP packet immediately (idea: @free_the_internet) 68 | 69 | while True: 70 | try: 71 | if( first_flag == True ): 72 | first_flag = False 73 | 74 | time.sleep(first_time_sleep) # speed control + waiting for packet to fully recieve 75 | data = client_sock.recv(16384) 76 | #print('len data -> ',str(len(data))) 77 | #print('user talk :') 78 | 79 | if data: 80 | backend_sock.connect((Cloudflare_IP,Cloudflare_port)) 81 | thread_down = threading.Thread(target = self.my_downstream , args = (backend_sock , client_sock) ) 82 | thread_down.daemon = True 83 | thread_down.start() 84 | # backend_sock.sendall(data) 85 | send_data_in_fragment(data,backend_sock) 86 | 87 | else: 88 | raise Exception('cli syn close') 89 | 90 | else: 91 | data = client_sock.recv(16384) 92 | if data: 93 | backend_sock.sendall(data) 94 | else: 95 | raise Exception('cli pipe close') 96 | 97 | except Exception as e: 98 | #print('upstream : '+ repr(e) ) 99 | time.sleep(2) # wait two second for another thread to flush 100 | client_sock.close() 101 | backend_sock.close() 102 | return False 103 | 104 | 105 | 106 | 107 | def my_downstream(self, backend_sock , client_sock): 108 | first_flag = True 109 | while True: 110 | try: 111 | if( first_flag == True ): 112 | first_flag = False 113 | data = backend_sock.recv(16384) 114 | if data: 115 | client_sock.sendall(data) 116 | else: 117 | raise Exception('backend pipe close at first') 118 | 119 | else: 120 | data = backend_sock.recv(4096) 121 | if data: 122 | client_sock.sendall(data) 123 | else: 124 | raise Exception('backend pipe close') 125 | 126 | except Exception as e: 127 | #print('downstream '+backend_name +' : '+ repr(e)) 128 | time.sleep(2) # wait two second for another thread to flush 129 | backend_sock.close() 130 | client_sock.close() 131 | return False 132 | 133 | 134 | def send_data_in_fragment(data , sock): 135 | L_data = len(data) 136 | indices = random.sample(range(1,L_data-1), num_fragment-1) 137 | indices.sort() 138 | print('indices=',indices) 139 | 140 | i_pre=0 141 | for i in indices: 142 | fragment_data = data[i_pre:i] 143 | i_pre=i 144 | # print('send ',len(fragment_data),' bytes') 145 | 146 | # sock.send(fragment_data) 147 | sock.sendall(fragment_data) 148 | 149 | time.sleep(fragment_sleep) 150 | 151 | fragment_data = data[i_pre:L_data] 152 | sock.sendall(fragment_data) 153 | print('----------finish------------') 154 | 155 | 156 | 157 | 158 | --------------------------------------------------------------------------------