Adds extensibility points for authenticating OAuth 2 clients at the client and authorization server ends.

Fixes #105
Related to #75

1 files changed, 48 insertions, 0 deletions

diff --git a/src/DotNetOpenAuth.OAuth2.AuthorizationServer/OAuth2/ChannelElements/ClientCredentialHttpBasicReader.cs b/src/DotNetOpenAuth.OAuth2.AuthorizationServer/OAuth2/ChannelElements/ClientCredentialHttpBasicReader.cs
new file mode 100644
index 0000000..655d38f
--- /dev/null
+++ b/src/DotNetOpenAuth.OAuth2.AuthorizationServer/OAuth2/ChannelElements/ClientCredentialHttpBasicReader.cs
@@ -0,0 +1,48 @@
+//-----------------------------------------------------------------------
+// <copyright file="ClientCredentialHttpBasicReader.cs" company="Andrew Arnott">
+//     Copyright (c) Andrew Arnott. All rights reserved.
+// </copyright>
+//-----------------------------------------------------------------------
+
+namespace DotNetOpenAuth.OAuth2.ChannelElements {
+	using System;
+	using System.Collections.Generic;
+	using System.Linq;
+	using System.Text;
+	using System.Web;
+	using DotNetOpenAuth.Messaging;
+	using DotNetOpenAuth.OAuth2.Messages;
+
+	/// <summary>
+	/// Reads client authentication information from the HTTP Authorization header via Basic authentication.
+	/// </summary>
+	public class ClientCredentialHttpBasicReader : ClientAuthenticationModule {
+		/// <summary>
+		/// Gets this module's contribution to an HTTP 401 WWW-Authenticate header so the client knows what kind of authentication this module supports.
+		/// </summary>
+		public override string AuthenticateHeader {
+			get { return "Basic"; }
+		}
+
+		/// <summary>
+		/// Attempts to extract client identification/authentication information from a message.
+		/// </summary>
+		/// <param name="authorizationServerHost">The authorization server host.</param>
+		/// <param name="requestMessage">The incoming message.</param>
+		/// <param name="clientIdentifier">Receives the client identifier, if one was found.</param>
+		/// <returns>The level of the extracted client information.</returns>
+		public override ClientAuthenticationResult TryAuthenticateClient(IAuthorizationServerHost authorizationServerHost, AuthenticatedClientRequestBase requestMessage, out string clientIdentifier) {
+			Requires.NotNull(authorizationServerHost, "authorizationServerHost");
+			Requires.NotNull(requestMessage, "requestMessage");
+
+			var credential = OAuthUtilities.ParseHttpBasicAuth(requestMessage.Headers);
+			if (credential != null) {
+				clientIdentifier = credential.UserName;
+				return TryAuthenticateClientBySecret(authorizationServerHost, credential.UserName, credential.Password);
+			}
+
+			clientIdentifier = null;
+			return ClientAuthenticationResult.NoAuthenticationRecognized;
+		}
+	}
+}