Added container specific navigator settings

_locales/en/messages.json

@@ -1192,6 +1192,10 @@
 		"message": "CAUTION: the actual browser in use cannot be faked entirely as there is a multitude of ways to detect it. E.g. feature tests and browser specific rendering of HTML elements will always leak.",
 		"description": ""
 	},
+	"navigatorSettings_contextualIdentities": {
+		"message": "Settings for the container {select} are shown.",
+		"description": ""
+	},
 	"navigatorSettings_presetSection.os": {
 		"message": "Operating system presets",
 		"description": ""

lib/frame.js

@@ -87,6 +87,8 @@
 			logging.notice("my tab cookie store id is", data.cookieStoreId);
 			const {persistent: persistentRnd} = require("./randomSupplies");
 			persistentRnd.setCookieStoreId(data.cookieStoreId);
+			const modifiedNavigatorAPI = require("./modifiedNavigatorAPI");
+			modifiedNavigatorAPI.setCookieStoreId(data.cookieStoreId);
 		}
 		const persistentRndName = "persistent" + (extension.inIncognitoContext? "Incognito": "") + "Rnd";
 		if (data.hasOwnProperty(persistentRndName)){

lib/modifiedNavigatorAPI.js

@@ -13,8 +13,34 @@
 	}
 	
 	const {checkerWrapper, setGetterProperties, getStatusByFlag} = require("./modifiedAPIFunctions");
+	const logging = require("./logging");
 	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;
+	}
+	
 	scope.changedGetters = navigator.allProperties.map(function(property){
 		return {
 			objectGetters: [function(window){return window.Navigator && window.Navigator.prototype;}],
@@ -25,7 +51,7 @@
 						return checkerWrapper(checker, this, arguments, function(args, check){
 							const {notify, original} = check;
 							const originalValue = original.call(this, ...args);
-							const returnValue = navigator.getNavigatorValue(property);
+							const returnValue = navigator.getNavigatorValue(property, getCookieStoreId);
 							if (originalValue !== returnValue){
 								notify("fakedNavigatorReadout");
 							}

lib/navigator.js

@@ -36,8 +36,30 @@
 		changedValues = newValue;
 	});
 	
+	const getValue = function(){
+		function getChangedValues(getCookieStoreId){
+			if (changedValues.contextualIdentities){
+				const cookieStoreId = getCookieStoreId();
+				if (
+					cookieStoreId !== "" &&
+					cookieStoreId !== "firefox-default" &&
+					changedValues.contextualIdentities[cookieStoreId]
+				){
+					return changedValues.contextualIdentities[cookieStoreId];
+				}
+				else {
+					return changedValues;
+				}
+			}
+			else {
+				return changedValues;
+			}
+		}
 		
-	function getValue(name, stack = []){
+		return function getValue(name, getCookieStoreId){
+			const changedValues = getChangedValues(getCookieStoreId);
+			
+			function getValueInternal(name, stack = []){
 				if (stack.indexOf(name) !== -1){
 					return "[ERROR: loop in property definition]";
 				}
@@ -62,12 +84,15 @@
 					return undefined;
 				}
 				return string.replace(/{([a-z[\]_. -]*)}/ig, function(m, name){
-			return getValue(name, stack.slice());
+					return getValueInternal(name, stack.slice());
 				});
 			}
+			return getValueInternal(name);
+		};
+	}();
 	
-	scope.getNavigatorValue = function getNavigatorValue(name){
+	scope.getNavigatorValue = function getNavigatorValue(name, getCookieStoreId){
-		return getValue(name);
+		return getValue(name, getCookieStoreId);
 	};
 	
 	function changeHTTPHeader(details){
@@ -82,7 +107,9 @@
 		){
 			for (let header of details.requestHeaders){
 				if (header.name.toLowerCase() === "user-agent"){
-					header.value = getValue("userAgent");
+					header.value = getValue("userAgent", function(){
+						return details.cookieStoreId;
+					});
 				}
 			}
 		}
@@ -118,5 +145,24 @@
 				scope.unregisterHeaderChange();
 			}
 		});
+		
+		if (browser.contextualIdentities && browser.contextualIdentities.onRemoved){
+			logging.message("register contextual navigator identities removal");
+			browser.contextualIdentities.onRemoved.addListener(function(details){
+				logging.message("Contextual navigator identity", details.contextualIdentity.cookieStoreId, "removed.");
+				if (changedValues.contextualIdentities){
+					delete changedValues.contextualIdentities[details.contextualIdentity.cookieStoreId];
+					if (Object.keys(changedValues.contextualIdentities).length === 0){
+						delete changedValues.contextualIdentities;
+					}
+					settings.navigatorDetails = changedValues;
+				}
+			});
+		}
+		else {
+			logging.error(
+				"Old Firefox does not support browser.contextualIdentities.onRemoved"
+			);
+		}
 	};
 }());

options/navigator.css

@@ -1,3 +1,8 @@
+.contextualIdentities {
+	display: block;
+	margin: 0.5em 0;
+}
+
 .presetSection ul {
 	list-style-type: none;
 	padding: 0;

options/navigator.js

@@ -1,7 +1,7 @@
 /* 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(){
+(async function(){
 	"use strict";
 	
 	const extension = require("../lib/extension");
@@ -26,6 +26,144 @@
 	disclaimer.textContent = extension.getTranslation("navigatorSettings_disclaimer");
 	document.body.appendChild(disclaimer);
 	
+	const navigatorDetails = await async function(){
+		let cookieStoreId = "";
+		if (browser.contextualIdentities){
+			const contextualIdentities = await browser.contextualIdentities.query({});
+			if (contextualIdentities.length){
+				const containerLabel = document.createElement("label");
+				containerLabel.className = "contextualIdentities";
+				containerLabel.appendChild(extension.parseTranslation(
+					extension.getTranslation("navigatorSettings_contextualIdentities"),
+					{
+						select: function(){
+							const contextualIdentitiesSelect = document.createElement("select");
+							contextualIdentitiesSelect.appendChild(new Option("", ""));
+							contextualIdentities.forEach(function(contextualIdentity){
+								contextualIdentitiesSelect.appendChild(new Option(
+									contextualIdentity.name,
+									contextualIdentity.cookieStoreId
+								));
+							});
+							window.addEventListener("load", function(){
+								cookieStoreId = contextualIdentitiesSelect.value;
+								emitUpdate();
+							});
+							contextualIdentitiesSelect.addEventListener("change", function(){
+								cookieStoreId = this.value;
+								emitUpdate();
+							});
+							return contextualIdentitiesSelect;
+						}
+					}
+				));
+				document.body.appendChild(containerLabel);
+			}
+		}
+		
+		const callbacks = [];
+		let baseStorage;
+		let loaded = false;
+		
+		function getKeys(object){
+			return Object.keys(object).filter(function(key){
+				return key !== "contextualIdentities";
+			});
+		}
+		
+		function storageEqual(storage1, storage2){
+			const keys1 = getKeys(storage1);
+			const keys2 = getKeys(storage2);
+			return keys1.length === keys2.length && keys1.every(function(key){
+				return storage1[key] === storage2[key];
+			});
+		}
+		
+		function copyData(from, to = {}){
+			getKeys(from).forEach(function(key){
+				to[key] = from[key];
+			});
+			return to;
+		}
+		
+		function getStorage(){
+			if (cookieStoreId === ""){
+				return baseStorage;
+			}
+			else {
+				if (!baseStorage.contextualIdentities){
+					baseStorage.contextualIdentities = {};
+				}
+				if (!baseStorage.contextualIdentities[cookieStoreId]){
+					baseStorage.contextualIdentities[cookieStoreId] = copyData(baseStorage);
+				}
+				return baseStorage.contextualIdentities[cookieStoreId];
+			}
+		}
+		
+		settings.on("navigatorDetails", function({newValue}){
+			baseStorage = newValue;
+			emitUpdate();
+		});
+		settings.onloaded(function(){
+			loaded = true;
+			baseStorage = settings.navigatorDetails;
+			emitUpdate();
+		});
+		function emitUpdate(){
+			if (!loaded){
+				return;
+			}
+			const storage = getStorage();
+			callbacks.forEach(async function(callback){
+				callback(storage);
+			});
+		}
+		const api = {
+			get: getStorage,
+			getComputedValue: function getComputedValue(property){
+				return navigator.getNavigatorValue(property, function(){
+					return cookieStoreId;
+				});
+			},
+			onUpdate: function onUpdate(callback){
+				callbacks.push(callback);
+				if (loaded){
+					callback(getStorage());
+				}
+			},
+			save: function save(){
+				if (!loaded){
+					return;
+				}
+				if (baseStorage.contextualIdentities){
+					if (Object.keys(baseStorage.contextualIdentities).reduce(function(lastValue, contextualIdentity){
+						if (storageEqual(baseStorage.contextualIdentities[contextualIdentity], baseStorage)){
+							delete baseStorage.contextualIdentities[contextualIdentity];
+							return lastValue;
+						}
+						return false;
+					}, true)){
+						delete baseStorage.contextualIdentities;
+					}
+				}
+				settings.navigatorDetails = baseStorage;
+			},
+			reset: function reset(){
+				if (cookieStoreId === ""){
+					baseStorage = baseStorage.contextualIdentities? {
+						contextualIdentities: baseStorage.contextualIdentities
+					}: {};
+				}
+				else {
+					baseStorage.contextualIdentities[cookieStoreId] = {};
+				}
+				api.save();
+			}
+		};
+		return api;
+	}();
+	
 	function presetSection(title, presets){
 		const container = document.createElement("div");
 		container.className = "presetSection";
@@ -64,15 +202,10 @@
 					li.classList.remove("active");
 				}
 			}
-			settings.on("navigatorDetails", function({newValue}){
+			navigatorDetails.onUpdate(checkActive);
-				checkActive(newValue);
-			});
-			settings.onloaded(function(){
-				checkActive(settings.navigatorDetails);
-			});
 			
 			button.addEventListener("click", function(){
-				const data = settings.navigatorDetails;
+				const data = navigatorDetails.get();
 				Object.keys(presetProperties).forEach(function(property){
 					if (presetProperties[property] === undefined){
 						delete data[property];
@@ -85,7 +218,7 @@
 						data[property] = value;
 					}
 				});
-				settings.navigatorDetails = data;
+				navigatorDetails.save();
 			});
 		});
 		
@@ -249,11 +382,11 @@
 			input.value = currentProperties.hasOwnProperty(property)? currentProperties[property]: "{original value}";
 			input.addEventListener("change", function(){
 				currentProperties[property] = this.value;
-				settings.navigatorDetails = currentProperties;
+				navigatorDetails.save();
 			});
 			
 			const computedValue = document.createElement("td");
-			computedValue.textContent = navigator.getNavigatorValue(property);
+			computedValue.textContent = navigatorDetails.getComputedValue(property);
 			row.appendChild(computedValue);
 			
 			section.appendChild(row);
@@ -265,7 +398,8 @@
 		valueSection.appendChild(section);
 		
 		Object.keys(currentProperties).filter(function(property){
-			return navigator.allProperties.indexOf(property) === -1;
+			return property !== "contextualIdentities" &&
+				navigator.allProperties.indexOf(property) === -1;
 		}).sort().forEach(createPropertyRow.bind(undefined, section));
 		
 		section = document.createElement("tbody");
@@ -274,19 +408,11 @@
 		
 		navigator.allProperties.forEach(createPropertyRow.bind(undefined, section));
 	}
-	
+	navigatorDetails.onUpdate(updateValueSection);
-	settings.on("navigatorDetails", function({newValue}){
-		updateValueSection(newValue);
-	});
-	settings.onloaded(function(){
-		updateValueSection(settings.navigatorDetails);
-	});
 	
 	const resetButton = document.createElement("button");
 	resetButton.className = "button";
 	resetButton.textContent = extension.getTranslation("navigatorSettings_reset");
-	resetButton.addEventListener("click", function(){
+	resetButton.addEventListener("click", navigatorDetails.reset);
-		settings.navigatorDetails = {};
-	});
 	document.body.appendChild(resetButton);
 }());

releaseNotes.txt

@@ -4,6 +4,7 @@ Version 1.1:
 	
 	new features:
 		- added notice for privacy.resistFingerprinting
+		- added container specific navigator settings
 	
 	fixes:
 		- error when exporting function with name "top"

versions/updates.json

@@ -113,6 +113,10 @@
 				{
 					"version": "1.1Alpha20192301",
 					"update_link": "https://canvasblocker.kkapsner.de/versions/canvasblocker_beta-1.1Alpha20192301-an+fx.xpi"
+				},
+				{
+					"version": "1.1Alpha20192501",
+					"update_link": "https://canvasblocker.kkapsner.de/versions/canvasblocker_beta-1.1Alpha20192501-an+fx.xpi"
 				}
 			]
 		}