[Seaside] Session expiry

[Lukas Renggli]

> Gruezi (hope I got that right...) Lukas,

I am from Bern and we say "Gruesech", which is a bit different from
the "Gruezi" in Zurich.

> I'd also prefer to get the session instance rather than just the root
> component class, but haven't yet discovered how to do that from
> WAApplication (is there a way?). With the method from 1) moved from
> the component class to the session instance, I'd be able to override
> this in my custom session class and make the session expiry behaviour
> dependent on whether or not a user is logged in and/or other factors.

There is actually a property in the application called
#redirectHandler that should be used for that kind of redirects. It
looks like this is currently not done in Seaside 2.8, what is clearly
a bug. We will fix that in 2.9, as it requires to refactor WARegistry
and WAApplication that are in quite a strange relationship right now.

For now I suggest that you create a custom application class and copy
and override the method handleExpireRequest: to do whatever you want.

Cheers,
Lukas

-- 
Lukas Renggli
http://www.lukas-renggli.ch