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//-----------------------------------------------------------------------
// <copyright file="UIRequestAtRelyingPartyFactory.cs" company="Outercurve Foundation">
// Copyright (c) Outercurve Foundation. All rights reserved.
// </copyright>
//-----------------------------------------------------------------------
namespace DotNetOpenAuth.ApplicationBlock.CustomExtensions {
using System.Collections.Generic;
using DotNetOpenAuth.Messaging;
using DotNetOpenAuth.OpenId.ChannelElements;
using DotNetOpenAuth.OpenId.Extensions.UI;
/// <summary>
/// An extension factory that allows the <see cref="UIRequest"/> extension to be received by the relying party.
/// </summary>
/// <remarks>
/// Typically UIRequest is only received by the Provider. But Google mirrors back this data to the relying party
/// if our web user is already logged into Google.
/// See the OpenIdRelyingPartyWebForms sample's DetectGoogleSession.aspx page for usage of this factory.
/// </remarks>
public class UIRequestAtRelyingPartyFactory : IOpenIdExtensionFactory {
/// <summary>
/// The Type URI for the UI extension.
/// </summary>
private const string UITypeUri = "http://specs.openid.net/extensions/ui/1.0";
/// <summary>
/// Allows UIRequest extensions to be received by the relying party. Useful when Google mirrors back the request
/// to indicate that a user is logged in.
/// </summary>
/// <param name="typeUri">The type URI of the extension.</param>
/// <param name="data">The parameters associated specifically with this extension.</param>
/// <param name="baseMessage">The OpenID message carrying this extension.</param>
/// <param name="isProviderRole">A value indicating whether this extension is being received at the OpenID Provider.</param>
/// <returns>
/// An instance of <see cref="IOpenIdMessageExtension"/> if the factory recognizes
/// the extension described in the input parameters; <c>null</c> otherwise.
/// </returns>
public DotNetOpenAuth.OpenId.Messages.IOpenIdMessageExtension Create(string typeUri, IDictionary<string, string> data, IProtocolMessageWithExtensions baseMessage, bool isProviderRole) {
if (typeUri == UITypeUri && !isProviderRole) {
return new UIRequest();
}
return null;
}
}
}
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