1 files changed, 97 insertions, 0 deletions
diff --git a/src/DotNetOpenAuth.OpenIdOAuth/OAuth/WebConsumerOpenIdRelyingParty.cs b/src/DotNetOpenAuth.OpenIdOAuth/OAuth/WebConsumerOpenIdRelyingParty.cs
new file mode 100644
index 0000000..0d1a602
--- /dev/null
+++ b/src/DotNetOpenAuth.OpenIdOAuth/OAuth/WebConsumerOpenIdRelyingParty.cs
@@ -0,0 +1,97 @@
+//-----------------------------------------------------------------------
+// <copyright file="WebConsumerOpenIdRelyingParty.cs" company="Outercurve Foundation">
+//     Copyright (c) Outercurve Foundation. All rights reserved.
+// </copyright>
+//-----------------------------------------------------------------------
+
+namespace DotNetOpenAuth.OAuth {
+	using System;
+	using System.Collections.Generic;
+	using System.Linq;
+	using System.Text;
+	using DotNetOpenAuth.Messaging;
+	using DotNetOpenAuth.OAuth.ChannelElements;
+	using DotNetOpenAuth.OAuth.Messages;
+	using DotNetOpenAuth.OpenId.Extensions.OAuth;
+	using DotNetOpenAuth.OpenId.RelyingParty;
+
+	/// <summary>
+	/// A website or application that uses OAuth to access the Service Provider on behalf of the User
+	/// and can attach OAuth requests to outbound OpenID authentication requests.
+	/// </summary>
+	/// <remarks>
+	/// The methods on this class are thread-safe.  Provided the properties are set and not changed
+	/// afterward, a single instance of this class may be used by an entire web application safely.
+	/// </remarks>
+	public class WebConsumerOpenIdRelyingParty : WebConsumer {
+		/// <summary>
+		/// Initializes a new instance of the <see cref="WebConsumerOpenIdRelyingParty"/> class.
+		/// </summary>
+		/// <param name="serviceDescription">The endpoints and behavior of the Service Provider.</param>
+		/// <param name="tokenManager">The host's method of storing and recalling tokens and secrets.</param>
+		public WebConsumerOpenIdRelyingParty(ServiceProviderDescription serviceDescription, IConsumerTokenManager tokenManager)
+			: base(serviceDescription, tokenManager) {
+		}
+
+		/// <summary>
+		/// Attaches an OAuth authorization request to an outgoing OpenID authentication request.
+		/// </summary>
+		/// <param name="openIdAuthenticationRequest">The OpenID authentication request.</param>
+		/// <param name="scope">The scope of access that is requested of the service provider.</param>
+		public void AttachAuthorizationRequest(IAuthenticationRequest openIdAuthenticationRequest, string scope) {
+			Requires.NotNull(openIdAuthenticationRequest, "openIdAuthenticationRequest");
+
+			var authorizationRequest = new AuthorizationRequest {
+				Consumer = this.ConsumerKey,
+				Scope = scope,
+			};
+
+			openIdAuthenticationRequest.AddExtension(authorizationRequest);
+		}
+
+		/// <summary>
+		/// Processes an incoming authorization-granted message from an SP and obtains an access token.
+		/// </summary>
+		/// <param name="openIdAuthenticationResponse">The OpenID authentication response that may be carrying an authorized request token.</param>
+		/// <returns>
+		/// The access token, or null if OAuth authorization was denied by the user or service provider.
+		/// </returns>
+		/// <remarks>
+		/// The access token, if granted, is automatically stored in the <see cref="ConsumerBase.TokenManager"/>.
+		/// The token manager instance must implement <see cref="IOpenIdOAuthTokenManager"/>.
+		/// </remarks>
+		public AuthorizedTokenResponse ProcessUserAuthorization(IAuthenticationResponse openIdAuthenticationResponse) {
+			Requires.NotNull(openIdAuthenticationResponse, "openIdAuthenticationResponse");
+			Requires.ValidState(this.TokenManager is IOpenIdOAuthTokenManager);
+			var openidTokenManager = this.TokenManager as IOpenIdOAuthTokenManager;
+			ErrorUtilities.VerifyOperation(openidTokenManager != null, OAuthStrings.OpenIdOAuthExtensionRequiresSpecialTokenManagerInterface, typeof(IOpenIdOAuthTokenManager).FullName);
+
+			// The OAuth extension is only expected in positive assertion responses.
+			if (openIdAuthenticationResponse.Status != AuthenticationStatus.Authenticated) {
+				return null;
+			}
+
+			// Retrieve the OAuth extension
+			var positiveAuthorization = openIdAuthenticationResponse.GetExtension<AuthorizationApprovedResponse>();
+			if (positiveAuthorization == null) {
+				return null;
+			}
+
+			// Prepare a message to exchange the request token for an access token.
+			// We are careful to use a v1.0 message version so that the oauth_verifier is not required.
+			var requestAccess = new AuthorizedTokenRequest(this.ServiceProvider.AccessTokenEndpoint, Protocol.V10.Version) {
+				RequestToken = positiveAuthorization.RequestToken,
+				ConsumerKey = this.ConsumerKey,
+			};
+
+			// Retrieve the access token and store it in the token manager.
+			openidTokenManager.StoreOpenIdAuthorizedRequestToken(this.ConsumerKey, positiveAuthorization);
+			var grantAccess = this.Channel.Request<AuthorizedTokenResponse>(requestAccess);
+			this.TokenManager.ExpireRequestTokenAndStoreNewAccessToken(this.ConsumerKey, positiveAuthorization.RequestToken, grantAccess.AccessToken, grantAccess.TokenSecret);
+
+			// Provide the caller with the access token so it may be associated with the user
+			// that is logging in.
+			return grantAccess;
+		}
+	}
+}