Add core app

core/views/base.py

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+import logging
+
+# import stripe
+from django.conf import settings
+from django.contrib.auth.mixins import LoginRequiredMixin
+from django.shortcuts import redirect, render
+from django.urls import reverse, reverse_lazy
+from django.views import View
+from django.views.generic.edit import CreateView
+
+from core.forms import NewUserForm
+from core.lib.notify import raw_sendmsg
+
+logger = logging.getLogger(__name__)
+
+# Create your views here
+
+
+class Home(LoginRequiredMixin, View):
+    template_name = "index.html"
+
+    def get(self, request):
+        return render(request, self.template_name)
+
+
+class Signup(CreateView):
+    form_class = NewUserForm
+    success_url = reverse_lazy("two_factor:login")
+    template_name = "registration/signup.html"
+
+    def form_valid(self, form):
+        """If the form is valid, save the associated model."""
+        self.object = form.save()
+        raw_sendmsg(
+            f"New user signup: {self.object.username} - {self.object.email}",
+            title="New user",
+            topic=settings.NOTIFY_TOPIC,
+        )
+        return super().form_valid(form)
+
+    def get(self, request, *args, **kwargs):
+        if not settings.REGISTRATION_OPEN:
+            return render(request, "registration/registration_closed.html")
+        return super().get(request, *args, **kwargs)

core/views/manage/permissions.py

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+from django.contrib.auth.mixins import LoginRequiredMixin, UserPassesTestMixin
+
+
+class SuperUserRequiredMixin(LoginRequiredMixin, UserPassesTestMixin):
+    def test_func(self):
+        return self.request.user.is_superuser

core/views/notifications.py

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+from django.contrib.auth.mixins import LoginRequiredMixin
+from mixins.views import ObjectUpdate
+
+from core.forms import NotificationSettingsForm
+from core.models import NotificationSettings
+
+
+# Notifications - we create a new notification settings object if there isn't one
+# Hence, there is only an update view, not a create view.
+class NotificationsUpdate(LoginRequiredMixin, ObjectUpdate):
+    model = NotificationSettings
+    form_class = NotificationSettingsForm
+
+    page_title = "Update your notification settings"
+    page_subtitle = (
+        "At least the topic must be set if you want to receive notifications."
+    )
+
+    submit_url_name = "notifications_update"
+    submit_url_args = ["type"]
+
+    pk_required = False
+
+    hide_cancel = True
+
+    def get_object(self, **kwargs):
+        notification_settings, _ = NotificationSettings.objects.get_or_create(
+            user=self.request.user
+        )
+        return notification_settings