☠️ 2020 Update: This is an old post. The Facebook API is fundamentally different nowadays so this tip is possibly obsolete.
Fandjango is a
brilliant django app that takes the pain out of managing Facebook canvas
applications with Django. Once of the nice extras it offers is a decorator to ensure that a user is authorised with Facebook before allowing them access a view. This is very similar to django.contrib.auth's login_required decorator.
But sometimes you want a user to be authorised with Facebook on all pages of your app. It can become tedious having to decorate every view individually. This is a simple piece of middleware to alleviate the problem (here's the Gist):
middlewares.py
from django.http import HttpResponseRedirect
from django.conf import settings
from fandjango.decorators import facebook_authorization_required
class ExtraFacebookMiddleware:
"""
An extra layer of middleware on top of Fandjango to
enforce facebook authentication on every request.
This avoids having to decorate every view
"""
def process_view(self, request, view_func, view_args, view_kwargs):
@facebook_authorization_required(
permissions=settings.FACEBOOK_APPLICATION_INITIAL_PERMISSIONS)
def f(request, view_args, view_kwargs):
return view_func(request, view_args, view_kwargs)
return f(request, request, view_func, view_args, view_kwargs)
To make use of this middleware simply add it to your settings.py
settings.py
MIDDLEWARE_CLASSES = (
#...
'common.middleware.ExtraFacebookMiddleware'
)