Sith/core/middleware.py

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# -*- coding:utf-8 -*
#
# Copyright 2023 © AE UTBM
# ae@utbm.fr / ae.info@utbm.fr
#
# This file is part of the website of the UTBM Student Association (AE UTBM),
# https://ae.utbm.fr.
#
# You can find the source code of the website at https://github.com/ae-utbm/sith3
#
# LICENSED UNDER THE GNU GENERAL PUBLIC LICENSE VERSION 3 (GPLv3)
# SEE : https://raw.githubusercontent.com/ae-utbm/sith3/master/LICENSE
# OR WITHIN THE LOCAL FILE "LICENSE"
#
#
import importlib
import threading
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from django.conf import settings
from django.contrib.auth import get_user
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from django.contrib.auth.middleware import (
AuthenticationMiddleware as DjangoAuthenticationMiddleware,
)
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from django.utils.functional import SimpleLazyObject
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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:
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user = AnonymousUser()
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 setting to insert "
"'django.contrib.sessions.middleware.SessionMiddleware' before "
"'account.middleware.AuthenticationMiddleware'."
)
request.user = SimpleLazyObject(lambda: get_cached_user(request))
_threadlocal = threading.local()
def get_signal_request():
"""
!!! Do not use if your operation is asynchronus !!!
Allow to access current request in signals
This is a hack that looks into the thread
Mainly used for log purpose
"""
return getattr(_threadlocal, "request", None)
class SignalRequestMiddleware:
def __init__(self, get_response):
self.get_response = get_response
def __call__(self, request):
setattr(_threadlocal, "request", request)
return self.get_response(request)