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# -*- coding: utf-8 -*-
import django
from django.contrib.auth.middleware import RemoteUserMiddleware
from django.core.exceptions import ImproperlyConfigured
from django.contrib import auth
if django.VERSION >= (1, 10):
from django.utils.deprecation import MiddlewareMixin
else:
MiddlewareMixin = object
from django_webtest.compat import is_authenticated
class WebtestUserMiddleware(RemoteUserMiddleware):
"""
Middleware for utilizing django-webtest simplified auth
('user' arg for self.app.post and self.app.get).
Mostly copied from RemoteUserMiddleware, but the auth backend is changed
(by changing ``auth.authenticate`` arguments) in order to keep
RemoteUser backend untouched during django-webtest auth.
"""
header = "WEBTEST_USER"
def __call__(self, request):
# AuthenticationMiddleware is required so that request.user exists.
if not hasattr(request, 'user'):
raise ImproperlyConfigured(
"The django-webtest auth middleware requires the "
"'django.contrib.auth.middleware.AuthenticationMiddleware' "
"to be installed. Add it to your MIDDLEWARE setting "
"or disable django-webtest auth support by setting "
"'setup_auth' property of your WebTest subclass to False."
)
try:
username = request.META[self.header]
except KeyError:
# If specified header doesn't exist then return (leaving
# request.user set to AnonymousUser by the
# AuthenticationMiddleware).
return self.get_response(request)
# If the user is already authenticated and that user is the user we are
# getting passed in the headers, then the correct user is already
# persisted in the session and we don't need to continue.
if is_authenticated(request.user):
if hasattr(request.user, "get_username"):
authenticated_username = request.user.get_username()
else:
authenticated_username = request.user.username
clean_username = self.clean_username(username, request)
if authenticated_username == clean_username:
return self.get_response(request)
# We are seeing this user for the first time in this session, attempt
# to authenticate the user.
user = auth.authenticate(request=request, django_webtest_user=username)
if user:
# User is valid. Set request.user and persist user in the session
# by logging the user in.
request.user = user
auth.login(request, user)
return self.get_response(request)
class DisableCSRFCheckMiddleware(MiddlewareMixin):
def process_request(self, request):
request._dont_enforce_csrf_checks = True
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