mirror of
https://github.com/kkapsner/CanvasBlocker
synced 2025-07-03 20:16:33 +02:00
Removed pageMod and many not needed features.
Notifications not working.
This commit is contained in:
kkapsner
parent
195d780bf8
commit
97e0c6b9cd
8 changed files with 348 additions and 661 deletions
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@ -1,49 +0,0 @@
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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(function(){
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"use strict";
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const observers = require("sdk/system/events");
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const { when: unload } = require("sdk/system/unload");
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var classes = {
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HTMLCanvasElement: ["getContext", "toDataURL", "toBlob", "mozGetAsFile"],
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CanvasRenderingContext2D: ["getImageData"],
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WebGLRenderingContext: ["readPixels"]
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};
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var classNames = Object.keys(classes);
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var originalProperties = new WeakMap();
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function disable({subject: window}){
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var oldProperties = {};
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classNames.forEach(function(className){
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oldProperties[className] = {};
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classes[className].forEach(function(funcName){
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oldProperties[className][funcName] = window.wrappedJSObject[className].prototype[funcName];
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window.wrappedJSObject[className].prototype[funcName] = function(){};
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});
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});
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originalProperties.set(window, oldProperties);
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}
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function reset({subject: document}){
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var window = document.defaultView;
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var oldProperties = originalProperties.get(window);
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if (oldProperties){
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originalProperties.delete(window);
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classNames.forEach(function(className){
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classes[className].forEach(function(funcName){
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window.wrappedJSObject[className].prototype[funcName] = oldProperties[className][funcName];
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});
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});
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}
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}
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observers.on("content-document-global-created", disable);
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unload(() => observers.off("content-document-global-created", disable));
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observers.on("document-element-inserted", reset);
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unload(() => observers.off("document-element-inserted", reset));
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}());
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35
lib/lists.js
Normal file
35
lib/lists.js
Normal file
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@ -0,0 +1,35 @@
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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var preferences = require("sdk/simple-prefs");
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var prefService = require("sdk/preferences/service");
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var prefs = preferences.prefs;
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var sharedFunctions = require("./sharedFunctions");
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var lists = {
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white: [],
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ignore: [],
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black: []
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};
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function updateList(type){
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lists[type] = sharedFunctions.getDomainRegExpList(prefs[type + "List"]);
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}
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Object.keys(lists).forEach(function(type){
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preferences.on(type + "List", function(){
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updateList(type);
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});
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updateList(type);
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});
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exports.get = function getList(type){
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return lists[type];
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}
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exports.appendTo = function appendToList(type, entry){
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prefs[type + "List"] += (prefs[type + "List"]? ",": "") + entry;
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prefService.set("extensions.CanvasBlocker@kkapsner.de.whiteList", prefs[type + "List"]);
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updateList(type);
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}
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exports.update = updateList;
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264
lib/main.js
264
lib/main.js
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@ -5,234 +5,62 @@
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(function(){
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"use strict";
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require("./stylePreferencePane");
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require("./disableWithoutDocumentElement");
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var self = require("sdk/self");
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var pageMod = require("sdk/page-mod");
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var array = require("sdk/util/array");
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var preferences = require("sdk/simple-prefs");
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var prefService = require("sdk/preferences/service");
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var prefs = preferences.prefs;
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var URL = require("sdk/url").URL;
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var _ = require("sdk/l10n").get;
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var tabUtils = require("sdk/tabs/utils");
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// require("./disableWithoutDocumentElement");
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const {changedFunctions} = require("./modifiedAPI");
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const {notify} = require("./notifications");
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const lists = require("./lists");
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var sharedFunctions = require("./sharedFunctions");
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var getDomainRegExpList = sharedFunctions.getDomainRegExpList;
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const sharedFunctions = require("./sharedFunctions");
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// preferences
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Object.keys(prefs).forEach(function(pref){
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preferences.on(pref, function(){
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workers.forEach(checkWorker);
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});
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});
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var whiteList;
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function updateWhiteList(){
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whiteList = getDomainRegExpList(prefs.whiteList);
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}
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updateWhiteList();
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preferences.on("whiteList", function(){
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updateWhiteList();
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});
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var blackList;
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function updateBlackList(){
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blackList = getDomainRegExpList(prefs.blackList);
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}
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updateBlackList();
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preferences.on("blackList", function(){
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updateBlackList();
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});
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var ignoreList;
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function updateIgnoreList(){
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ignoreList = getDomainRegExpList(prefs.ignoreList);
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}
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updateIgnoreList();
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preferences.on("ignoreList", function(){
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updateIgnoreList();
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});
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// preferences for injected file
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var preferencesForInjected = ["showCallingFile", "showCompleteCallingStack"];
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preferencesForInjected.forEach(function(name){
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preferences.on(name, function(){
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workers.forEach(function(worker){
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worker.port.emit("set", name, prefs[name]);
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});
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});
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});
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const observers = require("sdk/system/events");
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const { when: unload } = require("sdk/system/unload");
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const preferences = require("sdk/simple-prefs");
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const prefs = preferences.prefs;
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function checkURL(url){
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return sharedFunctions.checkURL(url, prefs.blockMode, whiteList, blackList);
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return sharedFunctions.checkURL(url, prefs.blockMode);
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}
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function checkWorker(worker){
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try {
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var mode;
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var url = new URL(worker.url);
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if (
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(url.protocol === "about:") ||
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(prefs.allowPDFCanvas && worker.tab && worker.tab.contentType.match(/\/pdf$/i))
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){
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mode = "unblock";
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}
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else {
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mode = checkURL(url);
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}
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worker.port.emit(mode, prefs.askOnlyOnce);
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}
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catch (e){
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console.log("Error updating " + worker.url + ": " + e.message);
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}
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}
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var workers = [];
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var workerTranslations = {
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sourceOutput: _("sourceOutput"),
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stackEntryOutput: _("stackEntryOutput")
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};
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["", "Readout"].forEach(function(type){
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["", "Visible", "Invisible"].forEach(function(visibility){
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var text = "askFor" + visibility + type + "Permission";
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workerTranslations[text] = _(text);
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});
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});
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var apiNames = Object.keys(changedFunctions);
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var undef;
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function intercept({subject: window}){
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apiNames.forEach(function(name){
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var changedFunction = changedFunctions[name];
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var original = window.wrappedJSObject[changedFunction.object].prototype[name];
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var workerOptions = {
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blockMode: checkURL(),
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whiteList: prefs.whiteList,
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blackList: prefs.blackList,
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askOnce: prefs.askOnce,
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translations: workerTranslations
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};
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preferences.on("blockMode", function(){
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workerOptions.blockMode = checkURL();
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});
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["whiteList", "blackList", "askOnce"].forEach(function(prefName){
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preferences.on(prefName, function(){
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workerOptions[prefName] = prefs[prefName];
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});
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});
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pageMod.PageMod({
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include: "*",
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contentScriptWhen: "start",
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contentScriptFile: [
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self.data.url("sharedFunctions.js").replace("/data/", "/lib/"),
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self.data.url("inject.js"),
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],
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contentScriptOptions: workerOptions,
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onAttach: function(worker){
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array.add(workers, worker);
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worker.on("pageshow", function(){
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array.add(workers, this);
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});
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worker.on("pagehide", function(){
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array.remove(workers, this);
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});
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worker.on("detach", function(){
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array.remove(workers, this);
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});
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preferencesForInjected.forEach(function(name){
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worker.port.emit("set", name, prefs[name]);
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});
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checkWorker(worker);
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// display notifications
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worker.port.on("accessed readAPI", function(status, callingStackMsg){
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switch (status){
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case "fake":
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var contentURL = new URL(worker.contentURL);
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if (prefs.showNotifications && !ignoreList.match(contentURL)){
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var url = contentURL.href;
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var domain = contentURL.hostname;
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var message = _("fakedReadout").replace(/\{url\}/g, domain);
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var tab = tabUtils.getTabForId(worker.tab.id);
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var tabBrowser = tabUtils.getTabBrowserForTab(tab);
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var browser = tabUtils.getBrowserForTab(tab);
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var notifyBox = tabBrowser.getNotificationBox(browser);
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var notification = notifyBox.getNotificationWithValue("fake-readout");
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if (notification){
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notification.label = message;
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}
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else {
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var buttons = [
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{
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label: _("displayFullURL"),
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accessKey: "",
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callback: function(){
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browser.contentWindow.alert(url);
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// only way to prevent closing... see https://developer.mozilla.org/en-US/docs/Mozilla/Tech/XUL/Method/appendNotification#Notification_box_events
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throw new Error("Do not close notification.");
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}
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},
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{
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label: _("displayCallingStack"),
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accessKey: "",
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callback: function(){
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browser.contentWindow.alert(callingStackMsg);
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// only way to prevent closing... see https://developer.mozilla.org/en-US/docs/Mozilla/Tech/XUL/Method/appendNotification#Notification_box_events
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throw new Error("Do not close notification.");
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}
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},
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{
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label: _("ignorelistDomain"),
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accessKey: "",
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callback: function(){
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prefs.ignoreList += (prefs.ignoreList? ",": "") + domain;
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prefService.set("extensions.CanvasBlocker@kkapsner.de.ignoreList", prefs.ignoreList);
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updateIgnoreList();
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}
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},
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{
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label: _("whitelistURL"),
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accessKey: "",
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callback: function(){
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prefs.whiteList += (prefs.whiteList? ",": "") + "^" + url.replace(/([\\\+\*\?\[\^\]\$\(\)\{\}\=\!\|\.])/g, "\\$1") + "$";
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prefService.set("extensions.CanvasBlocker@kkapsner.de.whiteList", prefs.whiteList);
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updateWhiteList();
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workers.forEach(checkWorker);
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}
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},
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{
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label: _("whitelistDomain"),
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accessKey: "",
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callback: function(){
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prefs.whiteList += (prefs.whiteList? ",": "") + domain;
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prefService.set("extensions.CanvasBlocker@kkapsner.de.whiteList", prefs.whiteList);
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updateWhiteList();
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workers.forEach(checkWorker);
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}
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},
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{
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label: _("disableNotifications"),
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accessKey: "",
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callback: function(){
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prefs.showNotifications = false;
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prefService.set("extensions.CanvasBlocker@kkapsner.de.showNotifications", prefs.showNotifications);
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}
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}
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];
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var priority = notifyBox.PRIORITY_WARNING_MEDIUM;
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notification = notifyBox.appendNotification(
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message,
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"fake-readout",
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"chrome://browser/skin/Info.png",
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priority,
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buttons
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);
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Object.defineProperty(
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window.wrappedJSObject[changedFunction.object].prototype,
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name,
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{
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enumerable: true,
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configureable: false,
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get: function(){
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var status = checkURL(window.location);
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if (status === changedFunction.mode){
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var callingStackMsg = sharedFunctions.errorToCallingStackMsg(new Error());
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switch (status){
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case "fakeReadout":
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// notify(window, callingStackMsg);
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return changedFunction.fake;
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//case "block":
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default:
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return undef;
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}
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}
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break;
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else {
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return original;
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}
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}
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}
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});
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},
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);
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});
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}
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observers.on("content-document-global-created", intercept);
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unload(function(){
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observers.off("content-document-global-created", intercept);
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});
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}());
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101
lib/modifiedAPI.js
Normal file
101
lib/modifiedAPI.js
Normal file
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@ -0,0 +1,101 @@
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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(function(){
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"use strict";
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function getFakeCanvas(window, original){
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var canvas = original.cloneNode(true);
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var context = window.HTMLCanvasElement.prototype.getContext.call(canvas, "2d");
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var imageData = window.CanvasRenderingContext2D.prototype.getImageData.call(context, 0, 0, canvas.width, canvas.height);
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var data = imageData.data;
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for (var i = 0, l = data.length; i < l; i += 1){
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var value = 0xFF - data[i];
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if (value > 0x80){
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value = value ^ Math.floor(Math.random() * 0x40);
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}
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else if (value > 0x40){
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value = value ^ Math.floor(Math.random() * 0x20);
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}
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else if (value > 0x20){
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value = value ^ Math.floor(Math.random() * 0x10);
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}
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else if (value > 0x10){
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value = value ^ Math.floor(Math.random() * 0x08);
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}
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else if (value > 0x08){
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value = value ^ Math.floor(Math.random() * 0x04);
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}
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else if (value > 0x04){
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value = value ^ Math.floor(Math.random() * 0x02);
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}
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else if (value > 0x02){
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value = value ^ Math.floor(Math.random() * 0x01);
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}
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data[i] = 0xFF - value;
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}
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context.putImageData(imageData, 0, 0);
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return canvas;
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}
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function getWindow(canvas){
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console.log(canvas);
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return canvas.ownerDocument.defaultView;
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}
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// changed functions and their fakes
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exports.changedFunctions = {
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getContext: {
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mode: "block",
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object: "HTMLCanvasElement"
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},
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toDataURL: {
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mode: "fakeReadout",
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object: "HTMLCanvasElement",
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fake: function toDataURL(){
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var window = getWindow(this);
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return window.HTMLCanvasElement.prototype.toDataURL.apply(getFakeCanvas(window, this), arguments);
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}
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},
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toBlob: {
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mode: "fakeReadout",
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object: "HTMLCanvasElement",
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fake: function toBlob(callback){
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var window = getWindow(this);
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return window.HTMLCanvasElement.prototype.toBlob.apply(getFakeCanvas(window, this), arguments);
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},
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exportOptions: {allowCallbacks: true}
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},
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mozGetAsFile: {
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mode: "fakeReadout",
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object: "HTMLCanvasElement",
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mozGetAsFile: function mozGetAsFile(callbak){
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var window = getWindow(this);
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return window.HTMLCanvasElement.prototype.mozGetAsFile.apply(getFakeCanvas(window, this), arguments);
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}
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},
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getImageData: {
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mode: "fakeReadout",
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object: "CanvasRenderingContext2D",
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fake: function getImageData(sx, sy, sw, sh){
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var window = getWindow(this.canvas);
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var context = window.HTMLCanvasElement.prototype.getContext.call(getFakeCanvas(window, this.canvas), "2d");
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var data = window.CanvasRenderingContext2D.prototype.getImageData.apply(context, arguments).data;
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var imageData = new window.wrappedJSObject.ImageData(sw, sh);
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for (var i = 0, l = data.length; i < l; i += 1){
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imageData.data[i] = data[i];
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}
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return imageData;
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}
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},
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readPixels: {
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mode: "fakeReadout",
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object: "WebGLRenderingContext",
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fake: function readPixels(x, y, width, height, format, type, pixels){
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var window = getWindow(this.canvas);
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var context = window.HTMLCanvasElement.prototype.getContext.call(getFakeCanvas(window, this.canvas), "webGL");
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return window.WebGLRenderingContext.prototype.readPixels.apply(context, arguments);
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}
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||||
}
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||||
};
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}());
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100
lib/notifications.js
Normal file
100
lib/notifications.js
Normal file
|
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@ -0,0 +1,100 @@
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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/. */
|
||||
|
||||
var _ = require("sdk/l10n").get;
|
||||
var preferences = require("sdk/simple-prefs");
|
||||
var prefService = require("sdk/preferences/service");
|
||||
var prefs = preferences.prefs;
|
||||
var tabUtils = require("sdk/tabs/utils");
|
||||
var windowUtils = require("sdk/window/utils");
|
||||
var lists = require("./lists");
|
||||
var URL = require("sdk/url").URL;
|
||||
|
||||
exports.notify = function(window, callingStackMsg){
|
||||
var contentURL = new URL(window.location);
|
||||
if (prefs.showNotifications && !lists.get("ignore").match(contentURL)){
|
||||
var url = contentURL.href;
|
||||
var domain = contentURL.hostname;
|
||||
var message = _("fakedReadout").replace(/\{url\}/g, domain);
|
||||
|
||||
// var tab = tabUtils.getTabForId(worker.tab.id);
|
||||
// var tabBrowser = tabUtils.getTabBrowserForTab(tab);
|
||||
// var browser = tabUtils.getBrowserForTab(tab);
|
||||
var tabBrowser = tabUtils.getTabBrowser(window);
|
||||
var browser = windowUtils.getOwnerBrowserWindow(window);
|
||||
|
||||
var notifyBox = tabBrowser.getNotificationBox(browser);
|
||||
var notification = notifyBox.getNotificationWithValue("fake-readout");
|
||||
if (notification){
|
||||
notification.label = message;
|
||||
notification.url = url;
|
||||
notification.domain = domain;
|
||||
notification.callingStackMsg = callingStackMsg;
|
||||
}
|
||||
else {
|
||||
var buttons = [
|
||||
{
|
||||
label: _("displayFullURL"),
|
||||
accessKey: "",
|
||||
callback: function(){
|
||||
browser.contentWindow.alert(notification.url);
|
||||
// only way to prevent closing... see https://developer.mozilla.org/en-US/docs/Mozilla/Tech/XUL/Method/appendNotification#Notification_box_events
|
||||
throw new Error("Do not close notification.");
|
||||
}
|
||||
},
|
||||
{
|
||||
label: _("displayCallingStack"),
|
||||
accessKey: "",
|
||||
callback: function(){
|
||||
browser.contentWindow.alert(notification.callingStackMsg);
|
||||
// only way to prevent closing... see https://developer.mozilla.org/en-US/docs/Mozilla/Tech/XUL/Method/appendNotification#Notification_box_events
|
||||
throw new Error("Do not close notification.");
|
||||
}
|
||||
},
|
||||
{
|
||||
label: _("ignorelistDomain"),
|
||||
accessKey: "",
|
||||
callback: function(){
|
||||
lists.appendTo("ignore", notification.domain);
|
||||
}
|
||||
},
|
||||
{
|
||||
label: _("whitelistURL"),
|
||||
accessKey: "",
|
||||
callback: function(){
|
||||
lists.appendTo("white", "^" + notification.url.replace(/([\\\+\*\?\[\^\]\$\(\)\{\}\=\!\|\.])/g, "\\$1") + "$");
|
||||
}
|
||||
},
|
||||
{
|
||||
label: _("whitelistDomain"),
|
||||
accessKey: "",
|
||||
callback: function(){
|
||||
lists.appendTo("white", notification.domain);
|
||||
}
|
||||
},
|
||||
{
|
||||
label: _("disableNotifications"),
|
||||
accessKey: "",
|
||||
callback: function(){
|
||||
prefs.showNotifications = false;
|
||||
prefService.set("extensions.CanvasBlocker@kkapsner.de.showNotifications", prefs.showNotifications);
|
||||
}
|
||||
}
|
||||
];
|
||||
|
||||
var priority = notifyBox.PRIORITY_WARNING_MEDIUM;
|
||||
notification = notifyBox.appendNotification(
|
||||
message,
|
||||
"fake-readout",
|
||||
"chrome://browser/skin/Info.png",
|
||||
priority,
|
||||
buttons
|
||||
);
|
||||
notification.url = url;
|
||||
notification.domain = domain;
|
||||
notification.callingStackMsg = callingStackMsg;
|
||||
}
|
||||
}
|
||||
|
||||
};
|
||||
|
|
@ -3,6 +3,23 @@
|
|||
* 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/. */
|
||||
|
||||
const lists = require("./lists");
|
||||
const preferences = require("sdk/simple-prefs");
|
||||
const prefs = preferences.prefs;
|
||||
|
||||
// Translation
|
||||
var translate = require("sdk/l10n").get;
|
||||
var _ = function(name, replace){
|
||||
var str = translate(name) || name;
|
||||
if (replace){
|
||||
// replace generic content in the transation by given parameter
|
||||
Object.keys(replace).forEach(function(name){
|
||||
str = str.replace(new RegExp("{" + name + "}", "g"), replace[name]);
|
||||
});
|
||||
}
|
||||
return str;
|
||||
};
|
||||
|
||||
function getDomainRegExpList(domainList){
|
||||
"use strict";
|
||||
|
||||
|
|
@ -44,44 +61,28 @@ function getDomainRegExpList(domainList){
|
|||
return list;
|
||||
}
|
||||
|
||||
function checkURL(url, blockMode, whiteList, blackList){
|
||||
function checkURL(url, blockMode){
|
||||
"use strict";
|
||||
if (url.protocol === "about:") {
|
||||
return "unblock";
|
||||
}
|
||||
|
||||
var mode = "block";
|
||||
switch (blockMode){
|
||||
case "blockEverything":
|
||||
mode = "block";
|
||||
break;
|
||||
case "allowOnlyWhiteList":
|
||||
if (url && whiteList.match(url)){
|
||||
mode = "unblock";
|
||||
}
|
||||
else {
|
||||
mode = "block";
|
||||
}
|
||||
break;
|
||||
case "ask":
|
||||
case "blockReadout":
|
||||
case "fakeReadout":
|
||||
case "askReadout":
|
||||
if (url && whiteList.match(url)){
|
||||
if (url && lists.get("white").match(url)){
|
||||
mode = "unblock";
|
||||
}
|
||||
else if (url && blackList.match(url)){
|
||||
else if (url && lists.get("black").match(url)){
|
||||
mode = "block";
|
||||
}
|
||||
else {
|
||||
mode = blockMode;
|
||||
}
|
||||
break;
|
||||
case "blockOnlyBlackList":
|
||||
if (url && blackList.match(url)){
|
||||
mode = "block";
|
||||
}
|
||||
else {
|
||||
mode = "unblock";
|
||||
}
|
||||
break;
|
||||
case "allowEverything":
|
||||
mode = "unblock";
|
||||
break;
|
||||
|
|
@ -91,8 +92,47 @@ function checkURL(url, blockMode, whiteList, blackList){
|
|||
return mode;
|
||||
}
|
||||
|
||||
try {
|
||||
exports.getDomainRegExpList = getDomainRegExpList;
|
||||
exports.checkURL = checkURL;
|
||||
|
||||
// Stack parsing
|
||||
function parseStackEntry(entry){
|
||||
var m = /@(.*):(\d*):(\d*)$/.exec(entry) || ["", entry, "--", "--"];
|
||||
return {
|
||||
url: m[1],
|
||||
line: m[2],
|
||||
column: m[3],
|
||||
raw: entry
|
||||
};
|
||||
}
|
||||
catch(e){}
|
||||
|
||||
// parse calling stack
|
||||
function errorToCallingStackMsg(error){
|
||||
var msg = "";
|
||||
var callers = error.stack.trim().split("\n");
|
||||
//console.log(callers);
|
||||
var findme = callers.shift(); // Remove us from the stack
|
||||
findme = findme.replace(/(:[0-9]+){1,2}$/, ""); // rm line & column
|
||||
// Eliminate squashed stack. stack may contain 2+ stacks, but why...
|
||||
var inDoubleStack = false;
|
||||
callers = callers.filter(function(caller){
|
||||
var doubleStackStart = caller.search(findme) !== -1;
|
||||
inDoubleStack = inDoubleStack || doubleStackStart;
|
||||
return !inDoubleStack;
|
||||
});
|
||||
msg += "\n\n" + _("sourceOutput") + ": ";
|
||||
if (prefs.showCompleteCallingStack){
|
||||
msg += callers.reduce(function(stack, c){
|
||||
return stack + "\n\t" + _("stackEntryOutput", parseStackEntry(c));
|
||||
}, "");
|
||||
}
|
||||
else{
|
||||
msg += _("stackEntryOutput", parseStackEntry(callers[0]));
|
||||
}
|
||||
|
||||
return msg;
|
||||
}
|
||||
|
||||
|
||||
exports.getDomainRegExpList = getDomainRegExpList;
|
||||
exports.checkURL = checkURL;
|
||||
exports.parseStackEntry = parseStackEntry;
|
||||
exports.errorToCallingStackMsg = errorToCallingStackMsg;
|
||||
Loading…
Add table
Add a link
Reference in a new issue