Sith/core/middleware.py

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# -*- coding:utf-8 -*
#
# Copyright 2016,2017
# - Skia <skia@libskia.so>
#
# Ce fichier fait partie du site de l'Association des Étudiants de l'UTBM,
# http://ae.utbm.fr.
#
# This program is free software; you can redistribute it and/or modify it under
# the terms of the GNU General Public License a published by the Free Software
# Foundation; either version 3 of the License, or (at your option) any later
# version.
#
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
# details.
#
# You should have received a copy of the GNU General Public License along with
# this program; if not, write to the Free Sofware Foundation, Inc., 59 Temple
# Place - Suite 330, Boston, MA 02111-1307, USA.
#
#
import importlib
from django.conf import settings
from django.utils.functional import SimpleLazyObject
from django.contrib.auth import get_user
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from django.contrib.auth.middleware import (
AuthenticationMiddleware as DjangoAuthenticationMiddleware,
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)
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module, klass = settings.AUTH_ANONYMOUS_MODEL.rsplit(".", 1)
AnonymousUser = getattr(importlib.import_module(module), klass)
def get_cached_user(request):
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if not hasattr(request, "_cached_user"):
user = get_user(request)
if user.is_anonymous():
user = AnonymousUser(request)
request._cached_user = user
return request._cached_user
class AuthenticationMiddleware(DjangoAuthenticationMiddleware):
def process_request(self, request):
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assert hasattr(request, "session"), (
"The Django authentication middleware requires session middleware "
"to be installed. Edit your MIDDLEWARE_CLASSES setting to insert "
"'django.contrib.sessions.middleware.SessionMiddleware' before "
"'account.middleware.AuthenticationMiddleware'."
)
request.user = SimpleLazyObject(lambda: get_cached_user(request))