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CanvasBlocker/lib/modifiedNavigatorAPI.js

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/* 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";
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let scope;
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if ((typeof exports) !== "undefined"){
scope = exports;
}
else {
scope = require.register("./modifiedNavigatorAPI", {});
}
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const {checkerWrapper, setGetterProperties, getStatusByFlag} = require("./modifiedAPIFunctions");
const logging = require("./logging");
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const navigator = require("./navigator");
let cookieStoreId = false;
scope.setCookieStoreId = function(newCookieStoreId){
if (typeof newCookieStoreId === "string"){
cookieStoreId = (
newCookieStoreId !== "" &&
newCookieStoreId !== "firefox-default"
)? newCookieStoreId: "";
}
};
function getCookieStoreId(){
while (cookieStoreId === false){
logging.message("Starting synchronous request to wait for cookie store id.");
try {
let xhr = new XMLHttpRequest();
xhr.open("GET", "https://[::]", false);
xhr.send();
xhr = null;
}
catch (error){
logging.verbose("Error in XHR:", error);
}
}
return cookieStoreId;
}
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scope.changedGetters = navigator.allProperties.map(function(property){
return {
objectGetters: [function(window){return window.Navigator && window.Navigator.prototype;}],
name: property,
getterGenerator: function(checker){
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const temp = {
get [property](){
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return checkerWrapper(checker, this, arguments, function(args, check){
const {notify, original} = check;
const originalValue = original.call(this, ...args);
const returnValue = navigator.getNavigatorValue(property, getCookieStoreId);
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if (originalValue !== returnValue){
notify("fakedNavigatorReadout");
}
return returnValue;
});
}
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};
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return Object.getOwnPropertyDescriptor(temp, property).get;
}
};
});
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setGetterProperties(scope.changedGetters, {
type: "readout",
getStatus: getStatusByFlag("protectNavigator"),
api: "navigator"
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});
}());