Added OutgoingWebResponse.AsHttpResponseMessage extension method.

1 files changed, 25 insertions, 0 deletions

diff --git a/src/DotNetOpenAuth.Core/Messaging/MessagingUtilities.cs b/src/DotNetOpenAuth.Core/Messaging/MessagingUtilities.cs
index 5390da5..ab56d8b 100644
--- a/src/DotNetOpenAuth.Core/Messaging/MessagingUtilities.cs
+++ b/src/DotNetOpenAuth.Core/Messaging/MessagingUtilities.cs
@@ -15,6 +15,9 @@ namespace DotNetOpenAuth.Messaging {
 	using System.IO.Compression;
 	using System.Linq;
 	using System.Net;
+#if CLR4
+	using System.Net.Http;
+#endif
 	using System.Net.Mime;
 	using System.Runtime.Serialization.Json;
 	using System.Security;
@@ -161,6 +164,28 @@ namespace DotNetOpenAuth.Messaging {
 			return new OutgoingWebResponseActionResult(response);
 		}
 
+#if CLR4
+		/// <summary>
+		/// Transforms an OutgoingWebResponse to a Web API-friendly HttpResponseMessage.
+		/// </summary>
+		/// <param name="outgoingResponse">The response to send to the user agent.</param>
+		/// <returns>The <see cref="HttpResponseMessage"/> instance to be returned by the Web API method.</returns>
+		public static HttpResponseMessage AsHttpResponseMessage(this OutgoingWebResponse outgoingResponse) {
+			HttpResponseMessage response = new HttpResponseMessage(outgoingResponse.Status) {
+				Content = new StreamContent(outgoingResponse.ResponseStream)
+			};
+
+			var responseHeaders = outgoingResponse.Headers;
+			foreach (var header in responseHeaders.AllKeys) {
+				if (!response.Headers.TryAddWithoutValidation(header, responseHeaders[header])) {
+					response.Content.Headers.TryAddWithoutValidation(header, responseHeaders[header]);
+				}
+			}
+
+			return response;
+		}
+#endif
+
 		/// <summary>
 		/// Gets the original request URL, as seen from the browser before any URL rewrites on the server if any.
 		/// Cookieless session directory (if applicable) is also included.