Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.WorkflowServices/System/ServiceModel/QueueNameHelper.cs

@@ -0,0 +1,54 @@
+//------------------------------------------------------------
+// Copyright (c) Microsoft Corporation.  All rights reserved.
+//------------------------------------------------------------
+namespace System.ServiceModel
+{
+    using System.Collections.Generic;
+    using System.Workflow.Runtime;
+    using System.ServiceModel.Channels;
+    using System.Reflection;
+    using System.Text;
+    using System.Xml;
+    using System.ServiceModel.Dispatcher;
+    using System.Workflow.Activities;
+
+    static class QueueNameHelper
+    {
+        public static string Create(Type contractType, string operationName)
+        {
+            return Create(contractType.AssemblyQualifiedName, operationName);
+        }
+
+        public static string Create(string typeName, string operationName)
+        {
+            return typeName + "|" + operationName;
+        }
+
+        public static string Create(string partialQueueName, IDictionary<string, string> contextProperties)
+        {
+            if (partialQueueName == null)
+            {
+                throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("partialQueueName");
+            }
+
+            if (contextProperties == null)
+            {
+                throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("contextProperties");
+            }
+
+            string conversationId = null;
+
+            //Chosen explicit look up against generic looping of Context Headers
+            //to mitigate security threat bug PS#3470.
+            if (contextProperties.TryGetValue(WellKnownContextProperties.ConversationId, out conversationId))
+            {
+                StringBuilder stringBuilder = new StringBuilder();
+                stringBuilder.Append(partialQueueName);
+                stringBuilder.Append("|");
+                stringBuilder.Append(WellKnownContextProperties.ConversationId + ":" + conversationId);
+                return stringBuilder.ToString();
+            }
+            return partialQueueName;
+        }
+    }
+}