Cache sidebar with a simple caching API We cache the sidebar once for every user, the downside is that once the user meets new access criteria, their sidebar does not get updated. This can be fixed by calling soc.cache.sidebar.flush() when appropriate. Patch by: Sverre Rabbelier

from django.dispatch import Signal

request_started = Signal()
request_finished = Signal()
got_request_exception = Signal(providing_args=["request"])