1 files changed, 53 insertions, 7 deletions

diff --git a/src/DotNetOpenAuth.Core/Messaging/HttpRequestInfo.cs b/src/DotNetOpenAuth.Core/Messaging/HttpRequestInfo.cs
index 75da833..ba1faab 100644
--- a/src/DotNetOpenAuth.Core/Messaging/HttpRequestInfo.cs
+++ b/src/DotNetOpenAuth.Core/Messaging/HttpRequestInfo.cs
@@ -9,17 +9,15 @@ namespace DotNetOpenAuth.Messaging {
 	using System.Collections.Specialized;
 	using System.Diagnostics;
 	using System.Diagnostics.CodeAnalysis;
-	using System.Diagnostics.Contracts;
 	using System.Globalization;
 	using System.IO;
 	using System.Net;
-#if CLR4
 	using System.Net.Http;
 	using System.Net.Http.Headers;
-#endif
 	using System.Net.Mime;
 	using System.ServiceModel.Channels;
 	using System.Web;
+	using Validation;
 
 	/// <summary>
 	/// A property store of details of an incoming HTTP request.
@@ -124,7 +122,6 @@ namespace DotNetOpenAuth.Messaging {
 			Reporting.RecordRequestStatistics(this);
 		}
 
-#if CLR4
 		/// <summary>
 		/// Initializes a new instance of the <see cref="HttpRequestInfo" /> class.
 		/// </summary>
@@ -144,7 +141,6 @@ namespace DotNetOpenAuth.Messaging {
 
 			Reporting.RecordRequestStatistics(this);
 		}
-#endif
 
 		/// <summary>
 		/// Initializes a new instance of the <see cref="HttpRequestInfo"/> class.
@@ -226,6 +222,58 @@ namespace DotNetOpenAuth.Messaging {
 		}
 
 		/// <summary>
+		/// When overridden in a derived class, gets an array of client-supported MIME accept types.
+		/// </summary>
+		/// <returns>An array of client-supported MIME accept types.</returns>
+		public override string[] AcceptTypes {
+			get {
+				if (this.Headers["Accept"] != null) {
+					return this.headers["Accept"].Split(',');
+				}
+
+				return new string[0];
+			}
+		}
+
+		/// <summary>
+		/// When overridden in a derived class, gets information about the URL of the client request that linked to the current URL.
+		/// </summary>
+		/// <returns>The URL of the page that linked to the current request.</returns>
+		public override Uri UrlReferrer {
+			get {
+				if (this.Headers["Referer"] != null) { // misspelled word intentional, per RFC
+					return new Uri(this.Headers["Referer"]);
+				}
+
+				return null;
+			}
+		}
+
+		/// <summary>
+		/// When overridden in a derived class, gets the length, in bytes, of content that was sent by the client.
+		/// </summary>
+		/// <returns>The length, in bytes, of content that was sent by the client.</returns>
+		public override int ContentLength {
+			get {
+				if (this.Headers["Content-Length"] != null) {
+					return int.Parse(this.headers["Content-Length"]);
+				}
+
+				return 0;
+			}
+		}
+
+		/// <summary>
+		/// When overridden in a derived class, gets or sets the MIME content type of the request.
+		/// </summary>
+		/// <returns>The MIME content type of the request, such as "text/html".</returns>
+		/// <exception cref="System.NotImplementedException">Setter always throws</exception>
+		public override string ContentType {
+			get { return this.Headers["Content-Type"]; }
+			set { throw new NotImplementedException(); }
+		}
+
+		/// <summary>
 		/// Creates an <see cref="HttpRequestBase"/> instance that describes the specified HTTP request.
 		/// </summary>
 		/// <param name="request">The request.</param>
@@ -309,7 +357,6 @@ namespace DotNetOpenAuth.Messaging {
 			return new NameValueCollection();
 		}
 
-#if CLR4
 		/// <summary>
 		/// Adds HTTP headers to a <see cref="NameValueCollection"/>.
 		/// </summary>
@@ -325,6 +372,5 @@ namespace DotNetOpenAuth.Messaging {
 				}
 			}
 		}
-#endif
 	}
 }