third-party-package.adoc

Third Party Package

• 1. Django Allauth
  • 1.1. Use pre_social_login signal to allow emails of only specific domain to sign in

1. Django Allauth

1.1. Use pre_social_login signal to allow emails of only specific domain to sign in

from django.contrib.auth.models import User
from django.http import HttpResponseRedirect
from django.core.urlresolvers import reverse
from django.contrib import messages

from allauth.socialaccount.adapter import DefaultSocialAccountAdapter
from allauth.exceptions import ImmediateHttpResponse
from allauth.account.utils import perform_login
from allauth.account import app_settings


class LoginAdapter(DefaultSocialAccountAdapter):

    def pre_social_login(self, request, sociallogin):
        email = sociallogin.account.extra_data['email']
        if not email.split('@')[-1] == 'allowdomain.com':
            messages.add_message(request, messages.ERROR, 'Sorry! Only user with @allowdomain.com email can login')
            raise ImmediateHttpResponse(HttpResponseRedirect(reverse('admin:login')))
        try:
            user = sociallogin.account.user
        except Exception as e:
            user = None
        if user and user.id:
            return
        try:
            existing_user = User.objects.get(email=email)
            sociallogin.connect(request, existing_user)
        except User.DoesNotExist:
            pass
        else:
            perform_login(request, existing_user, app_settings.EmailVerificationMethod.NONE)

# in project settings
SOCIALACCOUNT_ADAPTER = 'path.to.LoginAdapter'