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From 6d44c0c1455442ffd61ad532635c109b92ca96d1 Mon Sep 17 00:00:00 2001
From: Martin Babinsky <mbabinsk@redhat.com>
Date: Fri, 26 May 2017 12:23:51 +0200
Subject: [PATCH] fix incorrect suffix handling in topology checks

When trying to delete a partially removed master entry lacking
'iparepltopomanagedsuffix' attribute, the code that tries to retrieve
tha value for further computations passes None and causes unhandled
internal errors.

If the attribute is empty or not present, we should return empty list
instead as to not break calling cod attribute, the code that tries to
retrieve tha value for further computations passes None and causes
unhandled internal errors. We should return empty list instead.

https://pagure.io/freeipa/issue/6965

Reviewed-By: Felipe Volpone <felipevolpone@gmail.com>
---
 ipaserver/topology.py | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/ipaserver/topology.py b/ipaserver/topology.py
index 385da29a66fb7276c55e9aac5c8c266b897721a7..2b6b0835473097eeec673230fab338bef41b8c49 100644
--- a/ipaserver/topology.py
+++ b/ipaserver/topology.py
@@ -72,12 +72,15 @@ def get_topology_connection_errors(graph):
 
 def map_masters_to_suffixes(masters):
     masters_to_suffix = {}
+    managed_suffix_attr = 'iparepltopomanagedsuffix_topologysuffix'
 
     for master in masters:
-        try:
-            managed_suffixes = master.get(
-                'iparepltopomanagedsuffix_topologysuffix')
-        except KeyError:
+        if managed_suffix_attr not in master:
+            continue
+
+        managed_suffixes = master[managed_suffix_attr]
+
+        if managed_suffixes is None:
             continue
 
         for suffix_name in managed_suffixes:
-- 
2.9.4