1 files changed, 54 insertions, 0 deletions
diff --git a/src/DotNetOpenAuth.OpenId/DefaultOpenIdHostFactories.cs b/src/DotNetOpenAuth.OpenId/DefaultOpenIdHostFactories.cs
new file mode 100644
index 0000000..18ad727
--- /dev/null
+++ b/src/DotNetOpenAuth.OpenId/DefaultOpenIdHostFactories.cs
@@ -0,0 +1,54 @@
+//-----------------------------------------------------------------------
+// <copyright file="DefaultHostFactories.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();
+			handler.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;
+			if (untrustedHandler != null) {
+				return untrustedHandler.CreateClient();
+			} else {
+				return new HttpClient(handler);
+			}
+		}
+	}
+}