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//-----------------------------------------------------------------------
// <copyright file="DesktopConsumer.cs" company="Andrew Arnott">
//     Copyright (c) Andrew Arnott. All rights reserved.
// </copyright>
//-----------------------------------------------------------------------

namespace DotNetOAuth {
	using System;
	using System.Collections.Generic;
	using System.Diagnostics.CodeAnalysis;
	using DotNetOAuth.ChannelElements;
	using DotNetOAuth.Messages;

	/// <summary>
	/// Used by a desktop application to use OAuth to access the Service Provider on behalf of the User.
	/// </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 desktop application safely.
	/// </remarks>
	public class DesktopConsumer : ConsumerBase {
		/// <summary>
		/// Initializes a new instance of the <see cref="DesktopConsumer"/> 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 DesktopConsumer(ServiceProviderDescription serviceDescription, ITokenManager tokenManager)
			: base(serviceDescription, tokenManager) {
		}

		/// <summary>
		/// Begins an OAuth authorization request.
		/// </summary>
		/// <param name="requestParameters">Extra parameters to add to the request token message.  Optional.</param>
		/// <param name="redirectParameters">Extra parameters to add to the redirect to Service Provider message.  Optional.</param>
		/// <param name="requestToken">The request token that must be exchanged for an access token after the user has provided authorization.</param>
		/// <returns>The URL to open a browser window to allow the user to provide authorization.</returns>
		[SuppressMessage("Microsoft.Design", "CA1021:AvoidOutParameters", MessageId = "2#", Justification = "Two results")]
		public Uri RequestUserAuthorization(IDictionary<string, string> requestParameters, IDictionary<string, string> redirectParameters, out string requestToken) {
			return this.RequestUserAuthorization(null, requestParameters, redirectParameters, out requestToken).DirectUriRequest;
		}

		/// <summary>
		/// Exchanges a given request token for access token.
		/// </summary>
		/// <param name="requestToken">The request token that the user has authorized.</param>
		/// <returns>The access token assigned by the Service Provider.</returns>
		public new GrantAccessTokenMessage ProcessUserAuthorization(string requestToken) {
			return base.ProcessUserAuthorization(requestToken);
		}
	}
}