1 files changed, 34 insertions, 0 deletions
diff --git a/src/DotNetOpenAuth.Core/Messaging/Bindings/ReplayedMessageException.cs b/src/DotNetOpenAuth.Core/Messaging/Bindings/ReplayedMessageException.cs
new file mode 100644
index 0000000..2b8df9d
--- /dev/null
+++ b/src/DotNetOpenAuth.Core/Messaging/Bindings/ReplayedMessageException.cs
@@ -0,0 +1,34 @@
+//-----------------------------------------------------------------------
+// <copyright file="ReplayedMessageException.cs" company="Andrew Arnott">
+//     Copyright (c) Andrew Arnott. All rights reserved.
+// </copyright>
+//-----------------------------------------------------------------------
+
+namespace DotNetOpenAuth.Messaging.Bindings {
+	using System;
+
+	/// <summary>
+	/// An exception thrown when a message is received for the second time, signalling a possible
+	/// replay attack.
+	/// </summary>
+	[Serializable]
+	internal class ReplayedMessageException : ProtocolException {
+		/// <summary>
+		/// Initializes a new instance of the <see cref="ReplayedMessageException"/> class.
+		/// </summary>
+		/// <param name="faultedMessage">The replayed message.</param>
+		public ReplayedMessageException(IProtocolMessage faultedMessage) : base(MessagingStrings.ReplayAttackDetected, faultedMessage) { }
+
+		/// <summary>
+		/// Initializes a new instance of the <see cref="ReplayedMessageException"/> class.
+		/// </summary>
+		/// <param name="info">The <see cref="System.Runtime.Serialization.SerializationInfo"/> 
+		/// that holds the serialized object data about the exception being thrown.</param>
+		/// <param name="context">The System.Runtime.Serialization.StreamingContext 
+		/// that contains contextual information about the source or destination.</param>
+		protected ReplayedMessageException(
+		  System.Runtime.Serialization.SerializationInfo info,
+		  System.Runtime.Serialization.StreamingContext context)
+			: base(info, context) { }
+	}
+}