Added expiring messages and replay protection support infrastructure.

1 files changed, 29 insertions, 0 deletions

diff --git a/src/DotNetOAuth/Messaging/IExpiringProtocolMessage.cs b/src/DotNetOAuth/Messaging/IExpiringProtocolMessage.cs
new file mode 100644
index 0000000..3867369
--- /dev/null
+++ b/src/DotNetOAuth/Messaging/IExpiringProtocolMessage.cs
@@ -0,0 +1,29 @@
+//-----------------------------------------------------------------------

+// <copyright file="IExpiringProtocolMessage.cs" company="Andrew Arnott">

+//     Copyright (c) Andrew Arnott. All rights reserved.

+// </copyright>

+//-----------------------------------------------------------------------

+

+namespace DotNetOAuth.Messaging {

+	using System;

+

+	/// <summary>

+	/// The contract a message that has an allowable time window for processing must implement.

+	/// </summary>

+	/// <remarks>

+	/// All expiring messages must also be signed to prevent tampering with the creation date.

+	/// </remarks>

+	internal interface IExpiringProtocolMessage : ISignedProtocolMessage {

+		/// <summary>

+		/// Gets or sets the UTC date/time the message was originally sent onto the network.

+		/// </summary>

+		/// <remarks>

+		/// The property setter should ensure a UTC date/time,

+		/// and throw an exception if this is not possible.

+		/// </remarks>

+		/// <exception cref="ArgumentException">

+		/// Thrown when a DateTime that cannot be converted to UTC is set.

+		/// </exception>

+		DateTime UtcCreationDate { get; set; }

+	}

+}