[dev] Horde Auth and other fruit

[Max Kalika]

Quoting Max Kalika <max@the-triumvirate.net>:

> I did some work (with lots of direction from Chuck) locally to make IMP play
> nice on multi-server setups, primarily preventing login clashes for prefs and
> Turba.  As a side effect of this, Turba will not bring up a login screen if
> one is already logged into IMP and also Horde Auth can be configured to use 
> IMP for authentication.  The patches are below.

Sorry, this message was a bit rushed as I tried to get a few things done at 
once.  The reason I post is to get your guys' opinion as to whether or not this 
is all kosher and/or query about where improvements can be made.  The major 
changes are:

1) When logging into IMP, IMP::authenticate() (upon success) will set up the 
Horde Auth session via Auth::setAuth().

  side effect:  no need to log into to Turba when logged into IMP.

2) A new field is added to imp/config/servers.php called "realm" which would be 
appened to logins for instantiating prefs and setting up Horde Auth sessions.

  side effect:  no login clashes in prefs and Turba

3) If registry defines auth/login and auth/logout methods to be 'imp', opening 
the login page on any app that requires Horde Auth (including Horde itself) 
will redirect to imp's login page which in turn (once the user is successfully 
authenticated) will redirect back to the app's default starting page.

  potential change:  make this configurable via $conf['auth']['driver'] = 'imp';

opinions?

-- 
/// max kalika
// max@the-triumvirate.net

"and after a while you'll stop making computers out of stuff and start making 
stuff out of computers" -- douglas adams 4/5/01