1 files changed, 53 insertions, 0 deletions
diff --git a/src/DotNetOpenAuth.OAuth2.ClientAuthorization/OAuth2/Messages/AccessTokenRefreshRequest.cs b/src/DotNetOpenAuth.OAuth2.ClientAuthorization/OAuth2/Messages/AccessTokenRefreshRequest.cs
new file mode 100644
index 0000000..80ebdfd
--- /dev/null
+++ b/src/DotNetOpenAuth.OAuth2.ClientAuthorization/OAuth2/Messages/AccessTokenRefreshRequest.cs
@@ -0,0 +1,53 @@
+//-----------------------------------------------------------------------
+// <copyright file="AccessTokenRefreshRequest.cs" company="Outercurve Foundation">
+//     Copyright (c) Outercurve Foundation. All rights reserved.
+// </copyright>
+//-----------------------------------------------------------------------
+
+namespace DotNetOpenAuth.OAuth2.Messages {
+	using System;
+	using System.Collections.Generic;
+	using DotNetOpenAuth.Messaging;
+	using DotNetOpenAuth.OAuth2.ChannelElements;
+
+	/// <summary>
+	/// A request from the client to the token endpoint for a new access token
+	/// in exchange for a refresh token that the client has previously obtained.
+	/// </summary>
+	internal class AccessTokenRefreshRequest : ScopedAccessTokenRequest {
+		/// <summary>
+		/// Initializes a new instance of the <see cref="AccessTokenRefreshRequest"/> class.
+		/// </summary>
+		/// <param name="tokenEndpoint">The token endpoint.</param>
+		/// <param name="version">The version.</param>
+		internal AccessTokenRefreshRequest(Uri tokenEndpoint, Version version)
+			: base(tokenEndpoint, version) {
+		}
+
+		/// <summary>
+		/// Initializes a new instance of the <see cref="AccessTokenRefreshRequest"/> class.
+		/// </summary>
+		/// <param name="authorizationServer">The authorization server.</param>
+		internal AccessTokenRefreshRequest(AuthorizationServerDescription authorizationServer)
+			: this(authorizationServer.TokenEndpoint, authorizationServer.Version) {
+		}
+
+		/// <summary>
+		/// Gets or sets the refresh token.
+		/// </summary>
+		/// <value>The refresh token.</value>
+		/// <remarks>
+		/// REQUIRED. The refresh token associated with the access token to be refreshed. 
+		/// </remarks>
+		[MessagePart(Protocol.refresh_token, IsRequired = true)]
+		internal string RefreshToken { get; set; }
+
+		/// <summary>
+		/// Gets the type of the grant.
+		/// </summary>
+		/// <value>The type of the grant.</value>
+		internal override GrantType GrantType {
+			get { return Messages.GrantType.RefreshToken; }
+		}
+	}
+}