Authentication for connecting clients

Hello there!
I've happily used sn (0.3.3) for some months for a little news server 
for use by friends. Some days ago I updated to 0.3.6 and started from 
scratch, also adding some remote groups.
It all works perfectly, but I wondering if some kind of user 
authentication was to be implemented in sn. Apart from the host-based 
check, that is.

All my clients have dynamic ips, therefore I have to open the server up 
for possibly a lot of people. An user/pass check would be nice, maybe 
with some levels of things a client can do. For example, the first 
check is hosts-based; then if the user and pass are correct, the user 
is allowed to post on all non-.nopost groups, otherwise s/he can only 
access all groups in a read-only fashion (or just be kicked out if s/he 
provides a wrong user/pass couple).

The user/pass file might be as simple as apache's... user:cryptedpass.


Just my two cents :)
-- 
Daniele Nicolucci (Jollino)
Network Admin on irc.discussioni.org
"An it harm none, do as ye will"