From 901fea33614f124f160a086b11eff3ac408ac076 Mon Sep 17 00:00:00 2001
From: Francesco Siddi <francesco.siddi@gmail.com>
Date: Mon, 11 Sep 2017 22:35:44 +0200
Subject: [PATCH] Do not assume that users and groups keys exist in permissions

---
 pillar/api/utils/node_type_utils.py | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/pillar/api/utils/node_type_utils.py b/pillar/api/utils/node_type_utils.py
index 2326c1c7..80fe869e 100644
--- a/pillar/api/utils/node_type_utils.py
+++ b/pillar/api/utils/node_type_utils.py
@@ -27,9 +27,11 @@ def assign_permissions(project, node_types, permission_callback):
         permissions = {}
 
         for key in ('users', 'groups'):
-            perms = proj_perms[key]
-            singular = key.rstrip('s')
+            perms = proj_perms.get(key)
+            if not perms:
+                continue
 
+            singular = key.rstrip('s')
             for perm in perms:
                 assert isinstance(perm, dict), 'perm should be dict, but is %r' % perm
                 ident = perm[singular]  # group or user ID.