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//-----------------------------------------------------------------------
// <copyright file="DefaultOpenIdHostFactories.cs" company="Andrew Arnott">
// Copyright (c) Andrew Arnott. All rights reserved.
// </copyright>
//-----------------------------------------------------------------------
namespace DotNetOpenAuth.OpenId {
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net.Cache;
using System.Net.Http;
using System.Text;
using System.Threading.Tasks;
/// <summary>
/// Creates default instances of required dependencies.
/// </summary>
public class DefaultOpenIdHostFactories : IHostFactories {
/// <summary>
/// Initializes a new instance of a concrete derivation of <see cref="HttpMessageHandler" />
/// to be used for outbound HTTP traffic.
/// </summary>
/// <returns>An instance of <see cref="HttpMessageHandler"/>.</returns>
/// <remarks>
/// An instance of <see cref="WebRequestHandler" /> is recommended where available;
/// otherwise an instance of <see cref="HttpClientHandler" /> is recommended.
/// </remarks>
public virtual HttpMessageHandler CreateHttpMessageHandler() {
var handler = new UntrustedWebRequestHandler();
((WebRequestHandler)handler.InnerHandler).CachePolicy = new RequestCachePolicy(RequestCacheLevel.NoCacheNoStore);
return handler;
}
/// <summary>
/// Initializes a new instance of the <see cref="HttpClient" /> class
/// to be used for outbound HTTP traffic.
/// </summary>
/// <param name="handler">The handler to pass to the <see cref="HttpClient" /> constructor.
/// May be null to use the default that would be provided by <see cref="CreateHttpMessageHandler" />.</param>
/// <returns>
/// An instance of <see cref="HttpClient" />.
/// </returns>
public HttpClient CreateHttpClient(HttpMessageHandler handler) {
handler = handler ?? this.CreateHttpMessageHandler();
var untrustedHandler = handler as UntrustedWebRequestHandler;
HttpClient client;
if (untrustedHandler != null) {
client = untrustedHandler.CreateClient();
} else {
client = new HttpClient(handler);
}
client.DefaultRequestHeaders.UserAgent.Add(Util.LibraryVersionHeader);
return client;
}
}
}
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