Requirements

You have to install the following packages:

jq
git
tput
bc
curl
parallel (version > 20220515)

How to run

1. clone

[~]>$ git clone https://github.com/MortezaBashsiz/CFScanner.git

2. Change directory and make them executable

[~]>$ cd CFScanner/bash
[~/CFScanner/bash]> chmod +x ../bin/*

3. Get config.real

[~/CFScanner/bash]>$ curl -s http://bot.sudoer.net/config.real -o ./config.real

In the config file the variables are

{
	"id": "User's UUID",
	"Host": "Host address which is behind Cloudflare",
	"Port": "Port which you are using behind Cloudflare on your origin server",
	"path": "Websocket endpoint like api20",
	"serverName": "SNI",
	"frontDomain": "fronting domain check",
	"scanDomain": "scan domain which is behind CF for download test"
}

NOTE: If you want to use your custom config DO NOT use it as config.real since script will update this file. Store your config in another file and pass it as an argument to script instead of config.real

4. Execute it

At following command pay attention to the numbers threads, speed and Custom Subnet File.

Threads: This is an integer number that defines the parallel threads count

Speed: This is the filter that you can define to list the IPs based on download speed. The values must be one of [25 50 100 150 200 250 500], and all values are in KBPS (Kilo Bytes Per Second). For example, if you set it to 50, it means that you will only list the IPs which have a download speed of more than 50 KB/S.

Custom Subnet File: This is an optional argument which is a file address if you want to execute only some specific subnets. Then put your subnets in a file and pass the file as an argument to the command.

[~/CFScanner/bash]>$ bash cfScanner.sh SUBNET threads ./config.real speed [Custome Subnet File]

EXAMPLE: without custom subnet

[~/CFScanner/bash]>$ bash cfScanner.sh SUBNET 8 ./config.real 100

EXAMPLE: with custom subnet

[~/CFScanner/bash]>$ bash cfScanner.sh SUBNET 8 ./config.real 100 ./custom.subnets

Which the custom.subnets is like as follows. You can edit this file and add your subnets in each line.

[~/CFScanner/bash]>$ cat custom.subnets 
5.226.179.0/24
203.89.5.0/24
[~/CFScanner/bash]>$

EXAMPLE: with custom ip file

[~/CFScanner/bash]>$ bash cfScanner.sh IP 8 ./config.real 100 ./ip.list

Which the custom.subnets is like as follows. You can edit this file and add your subnets in each line.

[~/CFScanner/bash]>$ cat ip.list
23.227.37.250 
23.227.37.252 
23.227.37.253 
23.227.37.254 
23.227.37.255 
23.227.38.1 
23.227.38.8 
23.227.38.2 
23.227.38.3 
23.227.38.6 
23.227.38.14 
23.227.38.11 
23.227.38.9 
23.227.38.4 
23.227.38.10 
23.227.38.7 
[~/CFScanner/bash]>$

5. Result

It will generate a file in datetime format in the result directory.

[~/CFScanner]>$ ls result/
20230120-203358-result.cf
[~/CFScanner]>$

Video Guide

You can find a video guide for this script on youtube.