Bug 629535 - Add navigator.doNotTrack. r=sicking

--HG-- extra : rebase_source : 48631ff375196045de1c2865ab4ee9b9c219c736
2011-09-19 15:59:22 -04:00 · 2011-09-19 15:59:22 -04:00 · 29d1d79b9d
--- a/dom/base/nsGlobalWindow.cpp
+++ b/dom/base/nsGlobalWindow.cpp
@ -274,6 +274,7 @@ static PRPackedBool         gDragServiceDisabled       = PR_FALSE;
 static FILE                *gDumpFile                  = nsnull;
 static PRUint64             gNextWindowID              = 0;
 static PRUint32             gSerialCounter             = 0;
+static PRBool               gDoNotTrackEnabled         = PR_FALSE;

 #ifdef DEBUG_jst
 PRInt32 gTimeoutCnt                                    = 0;
@ -962,6 +963,10 @@ nsGlobalWindow::Init()
  NS_ASSERTION(gEntropyCollector,
               "gEntropyCollector should have been initialized!");

+  mozilla::Preferences::AddBoolVarCache(&gDoNotTrackEnabled,
+                                        "privacy.donottrackheader.enabled",
+                                        PR_FALSE);
+
 #ifdef PR_LOGGING
  gDOMLeakPRLog = PR_NewLogModule("DOMLeak");
  NS_ASSERTION(gDOMLeakPRLog, "gDOMLeakPRLog should have been initialized!");
@ -11116,6 +11121,18 @@ nsNavigator::GetBuildID(nsAString& aBuildID)
  return NS_OK;
 }

+NS_IMETHODIMP
+nsNavigator::GetDoNotTrack(nsAString &aResult)
+{
+  if (gDoNotTrackEnabled) {
+    aResult.AssignLiteral("yes");
+  }
+  else {
+    aResult.AssignLiteral("unspecified");
+  }
+  return NS_OK;
+}
+
 NS_IMETHODIMP
 nsNavigator::JavaEnabled(PRBool *aReturn)
 {
--- a/dom/interfaces/base/nsIDOMNavigator.idl
+++ b/dom/interfaces/base/nsIDOMNavigator.idl
@ -39,7 +39,7 @@

 #include "domstubs.idl"

-[scriptable, uuid(5dd9f1f5-3347-4945-a350-4eedeb97d24c)]
+[scriptable, uuid(B8EE0374-5F47-4ED0-B9B0-BDE3E6D81FF5)]
 interface nsIDOMNavigator : nsISupports
 {
  readonly attribute DOMString           appCodeName;
@ -58,6 +58,7 @@ interface nsIDOMNavigator : nsISupports
  readonly attribute boolean             cookieEnabled;
  readonly attribute boolean             onLine;
  readonly attribute DOMString           buildID;
+  readonly attribute DOMString           doNotTrack;

  boolean                   javaEnabled();
 };
--- a/dom/tests/mochitest/general/Makefile.in
+++ b/dom/tests/mochitest/general/Makefile.in
@ -55,6 +55,7 @@ _TEST_FILES = \
 		file_bug628069.html \
 		test_bug631440.html \
 		test_bug653364.html \
+		test_bug629535.html \
 		test_consoleAPI.html \
 		test_domWindowUtils.html \
 		test_domWindowUtils_scrollXY.html \
--- a/dom/tests/mochitest/general/test_bug629535.html
+++ b/dom/tests/mochitest/general/test_bug629535.html
@ -0,0 +1,39 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=629535
+-->
+<head>
+  <title>Test for Bug 629535</title>
+  <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=629535">Mozilla Bug 629535</a>
+
+<script type="application/javascript">
+
+const dntPref = 'privacy.donottrackheader.enabled';
+const oldDNT = SpecialPowers.getBoolPref(dntPref);
+
+is(SpecialPowers.getBoolPref(dntPref), false,
+   'DNT should be disabled by default');
+is(navigator.doNotTrack, 'unspecified',
+   'navigator.doNotTrack should initially be "unspecified".');
+
+SpecialPowers.clearUserPref(dntPref);
+is(navigator.doNotTrack, "unspecified", 'after clearing pref');
+
+SpecialPowers.setBoolPref(dntPref, true);
+is(navigator.doNotTrack, "yes", 'after setting pref to true');
+
+SpecialPowers.setBoolPref(dntPref, false);
+is(navigator.doNotTrack, "unspecified", 'after setting pref to false');
+
+SpecialPowers.setBoolPref(dntPref, oldDNT);
+
+</script>
+
+</body>
+</html>
+