1 files changed, 56 insertions, 0 deletions
diff --git a/src/DotNetOpenId/RelyingParty/AuthenticationResponseSnapshot.cs b/src/DotNetOpenId/RelyingParty/AuthenticationResponseSnapshot.cs
new file mode 100644
index 0000000..7026aaa
--- /dev/null
+++ b/src/DotNetOpenId/RelyingParty/AuthenticationResponseSnapshot.cs
@@ -0,0 +1,56 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace DotNetOpenId.RelyingParty {
+	[Serializable]
+	class AuthenticationResponseSnapshot : IAuthenticationResponse {
+		internal AuthenticationResponseSnapshot(IAuthenticationResponse copyFrom) {
+			if (copyFrom == null) throw new ArgumentNullException("copyFrom");
+
+			ClaimedIdentifier = copyFrom.ClaimedIdentifier;
+			FriendlyIdentifierForDisplay = copyFrom.FriendlyIdentifierForDisplay;
+			Status = copyFrom.Status;
+			callbackArguments = copyFrom.GetCallbackArguments();
+		}
+
+		IDictionary<string, string> callbackArguments;
+
+		#region IAuthenticationResponse Members
+
+		public IDictionary<string, string> GetCallbackArguments() {
+			// Return a copy so that the caller cannot change the contents.
+			return new Dictionary<string, string>(callbackArguments);
+		}
+
+		public string GetCallbackArgument(string key) {
+			if (String.IsNullOrEmpty(key)) throw new ArgumentNullException("key");
+
+			string value;
+			if (callbackArguments.TryGetValue(key, out value)) {
+				return value;
+			}
+			return null;
+		}
+
+		public T GetExtension<T>() where T : DotNetOpenId.Extensions.IExtensionResponse, new() {
+			throw new NotSupportedException(Strings.NotSupportedByAuthenticationSnapshot);
+		}
+
+		public DotNetOpenId.Extensions.IExtensionResponse GetExtension(Type extensionType) {
+			throw new NotSupportedException(Strings.NotSupportedByAuthenticationSnapshot);
+		}
+
+		public Identifier ClaimedIdentifier { get; private set; }
+
+		public string FriendlyIdentifierForDisplay { get; private set; }
+
+		public AuthenticationStatus Status { get; private set; }
+
+		public Exception Exception {
+			get { throw new NotSupportedException(Strings.NotSupportedByAuthenticationSnapshot); }
+		}
+
+		#endregion
+	}
+}