Add authentication

[svenstaro]

OBS supports sending a bearer token. I think it'd be nice if that were supported by xiu for some basic authentication.

[harlanc]

What authentication methods do you usually use?

[svenstaro]

I think OBS uses Bearer? To be honest, I'm not super sure which authentication they support but I think it might make sense to support the same scheme.

[mpisat]

Whip supports Bearer: HTTP header authorization. However, it would be nice if xiu supports both Bearer and auth based on a parameter such as whip?app=live&stream=test&key=whateverencryptedpasswordhere

[harlanc]

To implement the feature, some refactor work needs to be done: most of the http mod codes in RTSP and WebRTC library are duplicate, which can be extracted as a common library and then the authentication logics can be added in this library.

[harlanc]

Reference : https://pengrl.com/lal/#/auth for the auth algorithms.

[svenstaro]

Thanks!

[harlanc]

https://harlanc.github.io/v0.10.0/docs/authentication/introduction Doc for Authentication Algorithms.