django-browserid

application.views.py

from django_browserid.views import Verify
from django_browserid.auth import BrowserIDBackend

class EmailNotWhitelistedError(Exception):
	pass

def create_user(email):
	if email.rsplit('@', 1)[0] in ("ecs.soton.ac.uk","soton.ac.uk"):
		print email
		return BrowserIDBackend().create_user(email)
	else:
		raise EmailNotWhitelistedError

class EmailCheckingVerify(Verify):
	def form_valid(self, form):
		print "foo"
		try:
			print "trying"
			return super(EmailCheckingVerify, self).form_valid(form)
		except EmailNotWhitelistedError:
			print "invalid email"
			return self.login_failure()

settings.py

BROWSERID_CREATE_USER = "application.views.create_user"

urls.py

from django.conf.urls.defaults import patterns, include, url
from application.views import EmailCheckingVerify

urlpatterns = patterns('',
    url(r'^browserid/verify/$', EmailCheckingVerify.as_view()),
    url(r'', include('django_browserid.urls')),
)

WTFPL ^