Go WebSocket Proxy

Go WebSocket Proxy is a small, simple and still quite bare-bones proxy that enables sending/receiving requests between two client browsers.

Package Features

• Stand-alone WebSocket proxy that allows two connections
• Package/interface for implementing WebSocket servers

Go to the wiki for more info on how to use the websocket package.

Reasoning

For one of my side projects (stream overlay), I needed some way to make two locally-running web applications talk with each other. From what I've read, I would need a full-fledged web server...

So, I decided to write my own proxy server.

Testing secure connections

I just had some fun time trying to setup a self-signed certificate that would be accepted by the browser... Turns out you can't do that easily (or, at least, I failed horribly).

To save time from anyone wanting to test that, here are a few pointers:

• Use minica to create your server's and the client's certificates.
  • But do not forget to add the server CA certificate to the browser's trusted certificates.
• Use the following OpenSSL command to create a PKCS#12 with the client's certificate:
  • openssl pkcs12 -export -inkey <client_key> -in <client_cert> -name <alias> -out <client_p12>

And I must give some credits to Let's Encrypt, for pointing me toward minica (mostly because I didn't have to re-implement that).

TODOs

• Add tests and examples
• Make the application conformant with RFC 6455