1 files changed, 71 insertions, 0 deletions
diff --git a/src/DotNetOpenAuth/OAuth2/ChannelElements/DataBag.cs b/src/DotNetOpenAuth/OAuth2/ChannelElements/DataBag.cs
new file mode 100644
index 0000000..cefd24d
--- /dev/null
+++ b/src/DotNetOpenAuth/OAuth2/ChannelElements/DataBag.cs
@@ -0,0 +1,71 @@
+//-----------------------------------------------------------------------
+// <copyright file="DataBag.cs" company="Andrew Arnott">
+//     Copyright (c) Andrew Arnott. All rights reserved.
+// </copyright>
+//-----------------------------------------------------------------------
+
+namespace DotNetOpenAuth.OAuth2.ChannelElements {
+	using System;
+	using System.Collections.Generic;
+	using System.Diagnostics.Contracts;
+	using System.Linq;
+	using System.Security.Cryptography;
+	using System.Security.Cryptography.X509Certificates;
+	using System.Text;
+	using System.Web;
+	using DotNetOpenAuth.Messaging;
+	using DotNetOpenAuth.Messaging.Bindings;
+	using DotNetOpenAuth.Messaging.Reflection;
+	using DotNetOpenAuth.OAuth2.Messages;
+
+	/// <summary>
+	/// A collection of message parts that will be serialized into a single string,
+	/// to be set into a larger message.
+	/// </summary>
+	internal abstract class DataBag : MessageBase {
+		/// <summary>
+		/// Initializes a new instance of the <see cref="DataBag"/> class.
+		/// </summary>
+		protected DataBag()
+			: base(Protocol.Default.Version) {
+		}
+
+		/// <summary>
+		/// Gets or sets the nonce.
+		/// </summary>
+		/// <value>The nonce.</value>
+		[MessagePart]
+		internal byte[] Nonce { get; set; }
+
+		/// <summary>
+		/// Gets or sets the UTC creation date of this token.
+		/// </summary>
+		/// <value>The UTC creation date.</value>
+		[MessagePart("timestamp", IsRequired = true, Encoder = typeof(TimestampEncoder))]
+		internal DateTime UtcCreationDate { get; set; }
+
+		/// <summary>
+		/// Gets or sets the signature.
+		/// </summary>
+		/// <value>The signature.</value>
+		[MessagePart("sig")]
+		internal byte[] Signature { get; set; }
+
+		/// <summary>
+		/// Gets or sets the message that delivered this DataBag instance to this host.
+		/// </summary>
+		protected internal IProtocolMessage ContainingMessage { get; set; }
+
+		/// <summary>
+		/// Gets the type of this instance.
+		/// </summary>
+		/// <value>The type of the bag.</value>
+		/// <remarks>
+		/// This ensures that one token cannot be misused as another kind of token.
+		/// </remarks>
+		[MessagePart("t", IsRequired = true, AllowEmpty = false)]
+		private string BagType {
+			get { return this.GetType().Name; }
+		}
+	}
+}