add working oauth and ldap client

passbook/admin/views/overview.py

@@ -0,0 +1,15 @@
+from django.contrib.auth.mixins import LoginRequiredMixin
+from django.views.generic import TemplateView
+
+from passbook.core.models import Application, Rule, User
+
+
+class AdministrationOverviewView(LoginRequiredMixin, TemplateView):
+
+    template_name = 'administration/overview.html'
+
+    def get_context_data(self, **kwargs):
+        kwargs['application_count'] = len(Application.objects.all())
+        kwargs['rule_count'] = len(Rule.objects.all())
+        kwargs['user_count'] = len(User.objects.all())
+        return super().get_context_data(**kwargs)