1 files changed, 51 insertions, 0 deletions
diff --git a/src/DotNetOpenAuth.OAuth2/OAuth2/ChannelElements/AuthorizationDataBag.cs b/src/DotNetOpenAuth.OAuth2/OAuth2/ChannelElements/AuthorizationDataBag.cs
new file mode 100644
index 0000000..8f1d983
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+++ b/src/DotNetOpenAuth.OAuth2/OAuth2/ChannelElements/AuthorizationDataBag.cs
@@ -0,0 +1,51 @@
+//-----------------------------------------------------------------------
+// <copyright file="AuthorizationDataBag.cs" company="Andrew Arnott">
+//     Copyright (c) Andrew Arnott. All rights reserved.
+// </copyright>
+//-----------------------------------------------------------------------
+
+namespace DotNetOpenAuth.OAuth2.ChannelElements {
+	using System;
+	using System.Collections.Generic;
+
+	using DotNetOpenAuth.Messaging;
+
+	/// <summary>
+	/// A data bag that stores authorization data.
+	/// </summary>
+	internal abstract class AuthorizationDataBag : DataBag, IAuthorizationDescription {
+		/// <summary>
+		/// Initializes a new instance of the <see cref="AuthorizationDataBag"/> class.
+		/// </summary>
+		protected AuthorizationDataBag() {
+			this.Scope = new HashSet<string>(OAuthUtilities.ScopeStringComparer);
+		}
+
+		/// <summary>
+		/// Gets or sets the identifier of the client authorized to access protected data.
+		/// </summary>
+		/// <value></value>
+		[MessagePart]
+		public string ClientIdentifier { get; set; }
+
+		/// <summary>
+		/// Gets the date this authorization was established or the token was issued.
+		/// </summary>
+		/// <value>A date/time expressed in UTC.</value>
+		public DateTime UtcIssued {
+			get { return this.UtcCreationDate; }
+		}
+
+		/// <summary>
+		/// Gets or sets the name on the account whose data on the resource server is accessible using this authorization.
+		/// </summary>
+		[MessagePart]
+		public string User { get; set; }
+
+		/// <summary>
+		/// Gets the scope of operations the client is allowed to invoke.
+		/// </summary>
+		[MessagePart(Encoder = typeof(ScopeEncoder))]
+		public HashSet<string> Scope { get; private set; }
+	}
+}