def logout(self, request):
notify(PrincipalLoggingOutEvent(request.principal))
if isReadonly():
storage = getUtility(IPrincipalInfoStorage, 'ram')
else:
storage = IPrincipalInfoStorage(self)
storage.clear(self, request)
def authenticate(self, request):
if isReadonly():
storage = getUtility(IPrincipalInfoStorage, 'ram')
else:
storage = IPrincipalInfoStorage(self)
# use cached PrincipalInfo
try:
info = storage.get(self, request)
if info is not None:
principal = Principal(
self.prefix + info.id, info.title, info.description)
notify(AuthenticatedPrincipalCreated(
self, principal, info, request))
return principal
except PrincipalInitializationFailed, err:
storage.clear(self, request)
cache.loginMessage = err.message