python-social-auth not getting correct Google OAuth2 details

Question

I want to login a user using the python-social-auth functionality for Google Plus signin in Django. When logging in from my website, everything works fine and the c

Answer 1

I have a project (not running actually) with google oauth2 authentication. I leave here my config file so it may be useful to you (I was only using oauth2 so some things may vary):

AUTHENTICATION_BACKENDS = (
    'social.backends.google.GoogleOAuth2',  # /google-oauth2
    'django.contrib.auth.backends.ModelBackend',
)
SOCIAL_AUTH_GOOGLE_OAUTH2_KEY = 'your google oauth 2 key'
SOCIAL_AUTH_GOOGLE_OAUTH2_SECRET = 'your secret google oauth 2 key'

SOCIAL_AUTH_PIPELINE = (
    'social.pipeline.social_auth.social_details',
    'social.pipeline.social_auth.social_uid',
    'social.pipeline.social_auth.auth_allowed',
    'social.pipeline.social_auth.associate_by_email',
    'social.pipeline.social_auth.social_user',
    'social.pipeline.user.get_username',
    'social.pipeline.user.create_user',
    'social.pipeline.social_auth.associate_user',
    'social.pipeline.social_auth.load_extra_data',
    'social.pipeline.user.user_details'
)

I attach the view also (note that I'm using django rest framework).

class ObtainAuthToken(APIView):
    permission_classes = (permissions.AllowAny,)
    serializer_class = AuthTokenSerializer
    model = Token

    # Accept backend as a parameter and 'auth' for a login / pass
    def post(self, request, backend):

        if backend == 'auth':  # For admin purposes
            serializer = self.serializer_class(data=request.DATA)
            if serializer.is_valid():
                token, created = Token.objects.get_or_create(user=serializer.object['user'])
                return Response({'token': token.key})
            return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)

        else:
            # Here we call PSA to authenticate like we would if we used PSA on server side.
            user = register_by_access_token(request, backend)

            # If user is active we get or create the REST token and send it back with user data
            if user and user.is_active:
                token, created = Token.objects.get_or_create(user=user)
                return Response({'id': user.id, 'name': user.username, 'token': token.key})
            else:
                return Response("Bad Credentials, check the Access Token and/or the UID", status=403)


@strategy('social:complete')
def register_by_access_token(request, backend):
    # This view expects an access_token GET parameter
    token = request.GET.get('access_token')
    backend = request.strategy.backend
    user = backend.do_auth(access_token=token, backend=backend)
    if user:
        # login(request, user) #Only useful for web..
        return user
    else:
        return None

and in the urls.py:

urlpatterns = patterns(
    '',
    url(r'^login/(?P[\w-]+)$', ObtainAuthToken.as_view(), ),
)

Sorry for attaching all this code and not providing a specific answer but more data is needed because the error can come from many sources (bad api keys, bad settings configuration, pipeline..). I hope the code helps.