python-social-auth AuthCanceled exception

Question

I\'m using python-social-auth in my Django application for authentication via Facebook. But when a user tries to login, they have been redirected to the Facebook app page, a

Answer 1

python-social-auth is a newer, derived version of django-social-auth.

AlexYar's answer can be slightly modified to work with python-social-auth by modify settings.py with following changes:

1. Add a middleware to handle the SocialAuthException

   MIDDLEWARE_CLASSES += (
       'social.apps.django_app.middleware.SocialAuthExceptionMiddleware',
   )
   

2. URL to redirect to, when an exception occurred

   SOCIAL_AUTH_LOGIN_ERROR_URL = '/'
   

3. Note that you also need to set

   DEBUG = False
   

That's all or read http://python-social-auth.readthedocs.org/en/latest/configuration/django.html#exceptions-middleware

Answer 2

This is slight modification of @Nicolas answer and this works for me.

middleware.py

from social.apps.django_app.middleware import SocialAuthExceptionMiddleware
from django.shortcuts import render
from social.exceptions import AuthCanceled

class SocialAuthExceptionMiddleware(SocialAuthExceptionMiddleware):
    def process_exception(self, request, exception):
        if type(exception) == AuthCanceled:
            return render(request, "pysocial/authcancelled.html", {})
        else:
            pass

settings.py

MIDDLEWARE_CLASSES += (
'myapp.middleware.SocialAuthExceptionMiddleware',
)

Answer 3

The 2018 answer:

1. Add SocialAuthExceptionMiddleware middleware to your config:

   MIDDLEWARE_CLASSES = [
       ...
       'social_django.middleware.SocialAuthExceptionMiddleware',
   ]
   

2. Set SOCIAL_AUTH_LOGIN_ERROR_URL in your config:

   SOCIAL_AUTH_LOGIN_ERROR_URL = '/login'
   

Now when you have DEBUG = False, your users will get redirected to your login page when they click cancel in social auth provider's page.

When DEBUG = True you will still see the error page in your browser during development.

Answer 4

Just add in

MIDDLEWARE_CLASSES = ( 'social_auth.middleware.SocialAuthExceptionMiddleware', )

and something like

LOGIN_ERROR_URL = '/'

That's all or read http://django-social-auth.readthedocs.org/en/latest/configuration.html#exceptions-middleware

Answer 5

If you don't care about handling the exception do the following in your settings.py

SOCIAL_AUTH_RAISE_EXCEPTIONS = False

See this answer: How to solve Authentication process canceled error?

Answer 6

This is a updated imports middleware using social_django

from social_django.middleware import SocialAuthExceptionMiddleware
from social_core import exceptions as social_exceptions
from django.shortcuts import HttpResponse
from django.shortcuts import render, redirect

class FacebookAuthCanceledExceptionMiddleware(SocialAuthExceptionMiddleware):

    def process_exception(self, request, exception):
        if hasattr(social_exceptions, 'AuthCanceled'):
            return redirect('auth_login')
        else:
            raise exception