def logout(request):
"""
Logs the user out. This will clear the user's login session data
from the auth session storage.
"""
from django.conf import settings
# TODO: pre logout signal
user_prop = getattr(settings, 'NEWAUTH_USER_PROPERTY', DEFAULT_USER_PROPERTY)
if hasattr(request, user_prop):
from newauth.models import (
AnonymousUser, get_anonymous_user_model,
)
user = getattr(request, user_prop)
if hasattr(user, '_backend_name'):
# Set the current request user to the anonymous user
# given by the backend of the user being logged out.
setattr(request, user_prop, get_anonymous_user_model(user._backend_name)())
elif not isinstance(user, AnonymousUserBase):
# if the user has no backend set and is not already
# an anonymous user then set the user to the default
# anonymous user.
setattr(request, user_prop, AnonymousUser())
request.session.flush()
def get_user(user_id, backend_name=None):
"""
Get the user from a user_id. If a backend_name
is given then the backend with that name will
be used.
If a backend_name is not given (default) then
all backends are tried.
:
This method should be used to get a user
rather than getting the user directly from
the database as it associates the correct
backend with the user.
"""
# Avoid making DB queries when we know that the user
# doesn't exist.
if user_id is not None:
if backend_name:
backends = [(backend_name, load_backends(backend_name))]
else:
backends = get_backends()
for name, backend_list in backends:
for backend in backend_list:
user = backend.get_user(user_id=user_id)
if user:
user._backend = backend
user._backend_name = name
return user
# If the backend name is given then use
# that backend's anonymous user
if backend_name:
from newauth.models import get_anonymous_user_model
return get_anonymous_user_model(backend_name)()
# If no backend is specified and no
# backend can get the user then use
# the default anonymous user class.
from newauth.models import AnonymousUser
return AnonymousUser()
def anon_user_model(self):
return get_anonymous_user_model(self.backend_name)
