query null check issue

query null check issue to InboundSms.cs
Vonage · Oct 2, 2020 · 38f2a79 · 38f2a79
1 parent 69a6e1b
commit 38f2a79
Showing 1 changed file with 6 additions and 3 deletions.
diff --git a/Vonage/LegacyNexmoLibrary/Messaging/InboundSms.cs b/Vonage/LegacyNexmoLibrary/Messaging/InboundSms.cs
@@ -79,9 +79,12 @@ public static string ConstructSignatureStringFromDictionary(IDictionary<string,
             {
                 var sig_sb = new StringBuilder();
                 var sorted_dict = new SortedDictionary<string, string>(StringComparer.Ordinal);
-                foreach (var key in query.Keys)
+                if (query != null)
                 {
-                    sorted_dict.Add(key, query[key].ToString());
+                    foreach (var key in query.Keys)
+                    {
+                        sorted_dict.Add(key, query[key].ToString());
+                    }
                 }
                 foreach (var key in sorted_dict.Keys)
                 {
@@ -100,4 +103,4 @@ public static string ConstructSignatureStringFromDictionary(IDictionary<string,
         }
 
     }
-}
+}