django-allauth - Critical login required : Allow users stored in a database only to login

Question

I have implemented login form for username/password method, and that works perfect.

I want user to be also able to login using their social accounts.

I am using django-allauth to map social users to django-users.

Now I want to allow only those social accounts to login, that are mapped to django-users and not everyone.

Is there a way to override callback view? or something else can be done?

Answer 1

Finally After reading the documents thoroughly and doing a lot of trials and errors I got to what I was looking for.

I had to set following parameters as a part of configuration specified in docs.

ACCOUNT_EMAIL_REQUIRED (=False)
The user is required to hand over an e-mail address when signing up.

and

SOCIALACCOUNT_QUERY_EMAIL (=ACCOUNT_EMAIL_REQUIRED)
Request e-mail address from 3rd party account provider? E.g. using OpenID AX, or the Facebook “email” permission.

I had to set ACCOUNT_EMAIL_REQUIRED = True as it was required to check if that email id is already registerd with us.

and then finally I overridden pre_social_login like below.

from allauth.socialaccount.adapter import DefaultSocialAccountAdapter  

class NoNewSocialLogin(DefaultSocialAccountAdapter):

    def pre_social_login(self, request, sociallogin):
        try:
            cr_user = auth_user.objects.get(email=sociallogin.user.email)

            if cr_user and cr_user.is_active:
                user_login = login(request, cr_user, 'django.contrib.auth.backends.ModelBackend')
                raise ImmediateHttpResponse(HttpResponseRedirect(reverse('protect')))
            else:
                raise  ImmediateHttpResponse(render_to_response("account/authentication_error.html"))
        except ObjectDoesNotExist as e:
            raise ImmediateHttpResponse(render_to_response("socialaccount/authentication_error.html"))
        except Exception as e:
            raise ImmediateHttpResponse(HttpResponseRedirect(reverse('protect')))