[epiphany] web-extension: Implement Do Not Track in WebKit2

[Carlos Garcia Campos <carlosgc src gnome org>]

commit 06e40d778446420f776f3f2d404198e0f24b2bf7
Author: Carlos Garcia Campos <cgarcia igalia com>
Date:   Wed Mar 13 17:29:35 2013 +0100

    web-extension: Implement Do Not Track in WebKit2
    
    https://bugzilla.gnome.org/show_bug.cgi?id=695343

 embed/ephy-web-view.c                    |    8 ++------
 embed/web-extension/ephy-web-extension.c |   14 +++++++++++---
 2 files changed, 13 insertions(+), 9 deletions(-)
---
diff --git a/embed/ephy-web-view.c b/embed/ephy-web-view.c
index 7bbd674..98b29d2 100644
--- a/embed/ephy-web-view.c
+++ b/embed/ephy-web-view.c
@@ -2648,9 +2648,7 @@ form_auth_data_save_requested (EphyEmbedShell *shell,
 }
 #endif
 
-#ifdef HAVE_WEBKIT2
-/* TODO: WebKitWebResource::send-request */
-#else
+#ifndef HAVE_WEBKIT2
 static void
 add_do_not_track_header_cb (WebKitWebView *view, WebKitWebFrame *frame,
                             WebKitWebResource *resource, WebKitNetworkRequest *request,
@@ -2815,9 +2813,7 @@ ephy_web_view_init (EphyWebView *web_view)
                     web_view);
 #endif
 
-#ifdef HAVE_WEBKIT2
-  /* TODO: WebKitWebResource::send-request */
-#else
+#ifndef HAVE_WEBKIT2
   if (g_settings_get_boolean (EPHY_SETTINGS_WEB, EPHY_PREFS_WEB_DO_NOT_TRACK))
     priv->do_not_track_handler = g_signal_connect (web_view, "resource-request-starting",
                                                    G_CALLBACK (add_do_not_track_header_cb), NULL);
diff --git a/embed/web-extension/ephy-web-extension.c b/embed/web-extension/ephy-web-extension.c
index d47c7f8..47feeda 100644
--- a/embed/web-extension/ephy-web-extension.c
+++ b/embed/web-extension/ephy-web-extension.c
@@ -80,9 +80,17 @@ web_page_send_request (WebKitWebPage *web_page,
   const char *request_uri;
   const char *page_uri;
 
-  /* FIXME: Instead of checking the setting here, connect to the signal
-   * or not depending on the setting.
-   */
+  if (g_settings_get_boolean (EPHY_SETTINGS_WEB, EPHY_PREFS_WEB_DO_NOT_TRACK)) {
+    SoupMessageHeaders *headers;
+
+    headers = webkit_uri_request_get_http_headers (request);
+    if (headers) {
+      /* Do Not Track header. '1' means 'opt-out'. See:
+       * http://tools.ietf.org/id/draft-mayer-do-not-track-00.txt */
+      soup_message_headers_append (headers, "DNT", "1");
+    }
+  }
+
   if (!g_settings_get_boolean (EPHY_SETTINGS_WEB, EPHY_PREFS_WEB_ENABLE_ADBLOCK))
       return FALSE;