name and location of the keytab. In order for this keytab to be usable
TurboGears and Apache will need to run as the same user. We will also need
to listen only on localhost in TG.
kerberos principal name
Add an identity an visit class to TurboGears that can handle the user
without requiring a database
Update the UI to show the user correctly.
Note that this is currently disabled. It is hardcoded to always return the
principal test@FREEIPA.ORG in proxyprovider.py
It doesn't handle an unauthorized request because that can never happen.