websocket-proxy

Ever needed to connect to a websocket server that is hosted inside a firewalled network that you can't open ports to but you do have access to a computer on another network that you can open ports to? Use these two simple python scripts to make the websocket server on the firewalled network work externally! I initially wrote this for my Deadline Web App backend.

Installation instructions

1. Make sure you have Python 3.10 or newer installed on both computers.
2. Install the Python Websockets library by running pip install websockets.
3. To set up the proxy on your external network, download and open external_proxy.py and change the PROXY_PORT variable to the port you wish to run it on. Then run python external-proxy.py to start the websocket server.
4. To set up the proxy on your internal network, download and open internal_proxy.py and change PROXY_URL to the URL of your external proxy, and change BACKEND_URL to the URL of the websocket server that is running on your internal network. Then run python internal-proxy.py to start the websocket client.

That's it! The external websocket server will forward all data to the internal websocket client, which will then spoof connections to the internal websocket server. A bit janky, sure, but you must do something when your IT department won't open any ports for you.