Added protection for window.name and window.opener

As requested by #231.

But this protection is disabled by default.

lib/modifiedWindowAPI.js

@@ -0,0 +1,87 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+(function(){
+	"use strict";
+	
+	var scope;
+	if ((typeof exports) !== "undefined"){
+		scope = exports;
+	}
+	else {
+		window.scope.modifiedWindowAPI = {};
+		scope = window.scope.modifiedWindowAPI;
+	}
+	
+	const {hasType, checkerWrapper} = require("./modifiedAPIFunctions");
+	
+	const windowNames = new WeakMap();
+	scope.changedGetters = [
+		{
+			objectGetters: [function(window){return window;}],
+			name: "opener",
+			getterGenerator: function(checker){
+				const temp = {
+					get opener(){
+						return checkerWrapper(checker, this, arguments, function(args, check){
+							const {prefs, notify, window, original} = check;
+							if (!prefs("protectWindow", window.location)){
+								return original.apply(this, window.Array.from(args));
+							}
+							const originalOpener = original.apply(this, window.Array.from(args));
+							if (originalOpener !== null){
+								notify("fakedWindowReadout");
+							}
+							return null;
+						});
+					}
+				};
+				return Object.getOwnPropertyDescriptor(temp, "opener").get;
+			}
+		},
+		{
+			objectGetters: [function(window){return window;}],
+			name: "name",
+			getterGenerator: function(checker){
+				const temp = {
+					get name(){
+						return checkerWrapper(checker, this, arguments, function(args, check){
+							const {prefs, notify, window, original} = check;
+							if (!prefs("protectWindow", window.location)){
+								return original.apply(this, window.Array.from(args));
+							}
+							const originalName = original.apply(this, window.Array.from(args));
+							const returnedName = windowNames.get(window) || "";
+							if (originalName !== returnedName){
+								notify("fakedWindowReadout");
+							}
+							return returnedName;
+						});
+					}
+				};
+				return Object.getOwnPropertyDescriptor(temp, "name").get;
+			},
+			setterGenerator: function(window, original){
+				const temp = {
+					set name(name){
+						original.apply(this, window.Array.from(arguments));
+						windowNames.set(window, name);
+					}
+				};
+				return Object.getOwnPropertyDescriptor(temp, "name").set;
+			}
+		}
+	];
+	
+	function getStatus(obj, status){
+		status = Object.create(status);
+		status.active = hasType(status, "readout");
+		return status;
+	}
+	
+	scope.changedGetters.forEach(function(changedGetter){
+		changedGetter.type = "readout";
+		changedGetter.getStatus = getStatus;
+		changedGetter.api = "window";
+	});
+}());