Added a guard to prevent AnalyzeFilter from crashing if it is called with a null input

2016-10-14 00:50:06 +02:00
parent 6d01c81c3f
commit ab1336055d
1 changed files with 7 additions and 6 deletions
@@ -382,12 +382,13 @@ namespace Duplicati.Library.Utility
            Tuple<bool, bool> cacheLookup;

            // Check for cached results
-            lock(_matchLock)
-                if (_matchFallbackLookup.TryGetValue(filter, out cacheLookup))
-                {
-                    includes = cacheLookup.Item1;
-                    excludes = cacheLookup.Item2;
-                }
+            if (filter != null)
+                lock(_matchLock)
+                    if (_matchFallbackLookup.TryGetValue(filter, out cacheLookup))
+                    {
+                        includes = cacheLookup.Item1;
+                        excludes = cacheLookup.Item2;
+                    }

            // Figure out what components are in the filter
            if (cacheLookup == null)