recovery(new): add recovery app to create recovery links

passbook/recovery/views.py

@@ -0,0 +1,24 @@
+"""recovery views"""
+from django.contrib import messages
+from django.contrib.auth import login
+from django.http import Http404, HttpRequest, HttpResponse
+from django.shortcuts import get_object_or_404, redirect
+from django.utils.translation import gettext as _
+from django.views import View
+
+from passbook.core.models import Nonce
+
+
+class UseNonceView(View):
+    """Use nonce to login"""
+
+    def get(self, request: HttpRequest, uuid: str) -> HttpResponse:
+        """Check if nonce exists, log user in and delete nonce."""
+        nonce: Nonce = get_object_or_404(Nonce, pk=uuid)
+        if nonce.is_expired:
+            nonce.delete()
+            raise Http404
+        login(request, nonce.user, backend='django.contrib.auth.backends.ModelBackend')
+        nonce.delete()
+        messages.warning(request, _("Used recovery-link to authenticate."))
+        return redirect('passbook_core:overview')