django-cats/cats/views.py

from django.contrib.auth import authenticate
from django.http import HttpResponseForbidden, HttpResponseRedirect
from django.shortcuts import redirect, render
from django.utils.translation import gettext as _


# Create your views here.
def certificate_login(request):
    certificate = request.META.get('HTTP_X_SSL_CERT', None)

    user = authenticate(request, encoded_certificate=certificate)

    if not user:
        return HttpResponseForbidden(_("you have not sent a valid client certificate"))

    if "next" in request.GET:
        return HttpResponseRedirect(request.GET["next"])

    return redirect("home")


def home_page(request):
    return render(request, "home.html")