Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.ServiceModel/System/ServiceModel/Security/BinaryNegotiation.cs

@@ -0,0 +1,89 @@
+//------------------------------------------------------------
+// Copyright (c) Microsoft Corporation.  All rights reserved.
+//------------------------------------------------------------
+namespace System.ServiceModel.Security
+{
+    using System;
+    using System.Xml;
+    using System.ServiceModel.Channels;
+
+    internal sealed class BinaryNegotiation 
+    {
+        private byte[] negotiationData;
+        XmlDictionaryString valueTypeUriDictionaryString;
+        string valueTypeUri;
+
+        public BinaryNegotiation(
+            string valueTypeUri,
+            byte[] negotiationData)
+        {
+            if (valueTypeUri == null)
+            {
+                throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("valueTypeUri");
+            }
+            if (negotiationData == null)
+            {
+                throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("negotiationData");
+            }
+            this.valueTypeUriDictionaryString = null;
+            this.valueTypeUri = valueTypeUri;
+            this.negotiationData = negotiationData;
+        }
+
+        public BinaryNegotiation(
+            XmlDictionaryString valueTypeDictionaryString,
+            byte[] negotiationData)
+        {
+            if (valueTypeDictionaryString == null)
+            {
+                throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("valueTypeDictionaryString");
+            }
+            if (negotiationData == null)
+            {
+                throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("negotiationData");
+            }
+            this.valueTypeUriDictionaryString = valueTypeDictionaryString;
+            this.valueTypeUri = valueTypeDictionaryString.Value;
+            this.negotiationData = negotiationData;
+        }
+
+        public void Validate(XmlDictionaryString valueTypeUriDictionaryString)
+        {
+            if (this.valueTypeUri != valueTypeUriDictionaryString.Value)
+            {
+                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new SecurityNegotiationException(SR.GetString(SR.IncorrectBinaryNegotiationValueType, this.valueTypeUri)));
+            }
+            this.valueTypeUriDictionaryString = valueTypeUriDictionaryString;
+        }
+
+        public void WriteTo(XmlDictionaryWriter writer, string prefix, XmlDictionaryString localName, XmlDictionaryString ns, XmlDictionaryString valueTypeLocalName, XmlDictionaryString valueTypeNs)
+        {
+            writer.WriteStartElement(prefix, localName, ns);
+            writer.WriteStartAttribute(valueTypeLocalName, valueTypeNs);
+            if (valueTypeUriDictionaryString != null)
+                writer.WriteString(valueTypeUriDictionaryString);
+            else
+                writer.WriteString(valueTypeUri);
+            writer.WriteEndAttribute();
+            writer.WriteStartAttribute(XD.SecurityJan2004Dictionary.EncodingType, null);
+            writer.WriteString(XD.SecurityJan2004Dictionary.EncodingTypeValueBase64Binary);
+            writer.WriteEndAttribute();
+            writer.WriteBase64(this.negotiationData, 0, this.negotiationData.Length);
+            writer.WriteEndElement();
+        }
+
+        public string ValueTypeUri
+        {
+            get 
+            { 
+                return this.valueTypeUri;
+            }
+        }
+
+        public byte[] GetNegotiationData()
+        {
+            // avoid copying since this is internal and callers use it as read-only
+            return this.negotiationData;
+        }
+    }
+}