Implement Admin approval (#29)

This PR fixes #7

Co-authored-by: Tim Lorsbach <tim@lorsba.ch>
Reviewed-on: enviPath/enviPy#29

epdb/views.py

@@ -1176,9 +1176,14 @@ def users(request):
             username = request.POST.get('username')
             password = request.POST.get('password')
 
-            # Get email for username
+            # Get email for username and check if account is active
             try:
-                email = get_user_model().objects.get(username=username).email
+                temp_user = get_user_model().objects.get(username=username)
+
+                if not temp_user.is_active:
+                    return render(request, 'errors/user_account_inactive.html', status=403)
+
+                email = temp_user.email
             except get_user_model().DoesNotExists:
                 return HttpResponseBadRequest()