Look up authenticated user name from backend

[Lester Cheung]

Hi,

Thanks for putting up the code for this!

I'm writing a backend for pywebdav and is trying to find out the best
way to retrieved the following from my DAVBackendHandler:

* Whether request has been authenticated.

* Username of the authenticated user.


Given authentication is done with DAVRequestHandler and the server is
multi-threaded (with SocketServer.ThreadingMixIn), does it mean that I
am free to have global variables to keep track of the above in my
DAVRequestHandler?


Regards,
Lester