How can I implement a secure WebSocket (wss://) server in Python?

Question

I want to serve a real-time stream that has to be securely encrypted due to sensitive data.

I\'ve successfully got normal WebSockets streaming using both gevent and guni

Answer 1

You can check out the websockify project. Websockify is a proxy that allows a WebSockets capable browser to communicate with a raw binary TCP server. It does this by base64 encoding all traffic to/from the browser. However, the project is modular and the websocket.py file is a general WebSocket server that is designed to be extended (and there a couple of included tests that show how this works). It would be fairly easy to disable the base64 encoding if that is not needed for you project.

Websockify also includes a Javascript library 'websock.js' which is designed to interact with websockify. It will transparently fallback to using web-socket-js (Flash based) if the browser does not have native WebSocket support.

Websockify supports secure (TLS/wss) connections and also is able to answer Flash security policy requests inline on the same port.

Disclaimer: I made websockify.