CodeInjector is a command line python program that can inject javascript/html/php code into web pages after you've completed an MITM attack.
netfilterqueue
Module needs to be installed. Install it using
sudo pip install netfilterqueue
Script needs to be run as sudo
python3 codejector.py
The code to be injected can be pasten into the terminal (T/t)
Or code can be written to the file inject.txt and this code can be used (F/f)
Any HTTP website will have this code injected.