Add SetReferrer, ReferrerUrl and ReferrerPolicy

Resolves #1464

Author: amaitland

CefSharp.Core/Internals/CefRequestWrapper.cpp

@@ -51,6 +51,27 @@ namespace CefSharp
             _wrappedRequest->SetMethod(StringUtils::ToNative(method));
         }
 
+        void CefRequestWrapper::SetReferrer(String^ referrerUrl, CefSharp::ReferrerPolicy policy)
+        {
+            ThrowIfDisposed();
+
+            _wrappedRequest->SetReferrer(StringUtils::ToNative(referrerUrl), (cef_referrer_policy_t)policy);
+        }
+
+        String^ CefRequestWrapper::ReferrerUrl::get()
+        {
+            ThrowIfDisposed();
+
+            return StringUtils::ToClr(_wrappedRequest->GetReferrerURL());
+        }
+
+        CefSharp::ReferrerPolicy CefRequestWrapper::ReferrerPolicy::get()
+        {
+            ThrowIfDisposed();
+
+            return (CefSharp::ReferrerPolicy)_wrappedRequest->GetReferrerPolicy();
+        }
+
         NameValueCollection^ CefRequestWrapper::Headers::get()
         {
             ThrowIfDisposed();

CefSharp.Core/Internals/CefRequestWrapper.h

@@ -42,6 +42,9 @@ namespace CefSharp
         public:
             virtual property String^ Url { String^ get(); void set(String^ url); }
             virtual property String^ Method { String^ get(); void set(String^ method); }
+            virtual void SetReferrer(String^ referrerUrl, CefSharp::ReferrerPolicy policy);
+            virtual property String^ ReferrerUrl { String^ get(); }
+            virtual property ReferrerPolicy ReferrerPolicy { CefSharp::ReferrerPolicy get(); }
             virtual property NameValueCollection^ Headers { NameValueCollection^ get(); void set(NameValueCollection^ url); }
             virtual property TransitionType TransitionType { CefSharp::TransitionType get(); }
             virtual property IPostData^ PostData { IPostData^ get(); }

CefSharp/CefSharp.csproj

@@ -170,6 +170,7 @@
     <Compile Include="PluginPolicy.cs" />
     <Compile Include="PostDataElementType.cs" />
     <Compile Include="PostDataExtensions.cs" />
+    <Compile Include="ReferrerPolicy.cs" />
     <Compile Include="ResourceHandler.cs" />
     <Compile Include="ResourceHandlerType.cs" />
     <Compile Include="ResponseAction.cs" />

CefSharp/IRequest.cs

@@ -19,6 +19,26 @@ public interface IRequest : IDisposable
         /// </summary>
         string Method { get; set; }
 
+        /// <summary>
+        /// Set the referrer URL and policy. If non-empty the referrer URL must be
+        /// fully qualified with an HTTP or HTTPS scheme component. Any username,
+        /// password or ref component will be removed.
+        /// </summary>
+        /// <param name="referrerUrl">the referrer url</param>
+        /// <param name="policy">referrer policy</param>
+        void SetReferrer(string referrerUrl, ReferrerPolicy policy);
+
+        /// <summary>
+        /// Get the referrer URL.
+        /// </summary>
+        string ReferrerUrl { get; }
+
+  
+        /// <summary>
+        /// Get the referrer policy.
+        /// </summary>
+        ReferrerPolicy ReferrerPolicy { get; }
+
         /// <summary>
         /// Header Collection
         /// NOTE: This collection is a copy of the underlying type, to make changes, take a reference to the collection,

CefSharp/ReferrerPolicy.cs

@@ -0,0 +1,42 @@
+// Copyright © 2010-2015 The CefSharp Authors. All rights reserved.
+//
+// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
+
+namespace CefSharp
+{
+    public enum ReferrerPolicy
+    {
+        /// <summary>
+        /// Always send the complete Referrer value.
+        /// </summary>
+        Always = 0,
+
+        /// <summary>
+        //// Use the default policy. This is OriginWhenCrossOrigin
+        /// when the `--reduced-referrer-granularity` command-line flag is specified
+        /// and NoReferrerWhenDowngrade otherwise.
+        /// </summary>
+        Default,
+
+        /// <summary>
+        /// When navigating from HTTPS to HTTP do not send the Referrer value.
+        /// Otherwise, send the complete Referrer value.
+        /// </summary>
+        NoReferrerWhenDowngrade,
+
+        /// <summary>
+        /// Never send the Referrer value.
+        /// </summary>
+        Never,
+
+        /// <summary>
+        /// Only send the origin component of the Referrer value.
+        /// </summary>
+        Origin,
+
+        /// <summary>
+        /// When navigating cross-origin only send the origin component of the Referrer value. Otherwise, send the complete Referrer value.
+        /// </summary>
+        OriginWhenCrossOrigin
+    }
+}