136 lines
3.9 KiB
JavaScript
136 lines
3.9 KiB
JavaScript
/* 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 settings = require("./settings");
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const logging = require("./logging");
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const {error, warning, message, notice, verbose, } = logging;
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const lists = require("./lists");
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logging.setPrefix("main script");
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const persistentRndStorage = require("./persistentRndStorage");
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message("start of background script");
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message("waiting for settings to be loaded");
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settings.onloaded(function(){
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notice("everything loaded");
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persistentRndStorage.init();
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message("register non port message listener");
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browser.runtime.onMessage.addListener(function(data){
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notice("got data without port", data);
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var keys = Object.keys(data);
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if (data["canvasBlocker-new-domain-rnd"]){
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persistentRndStorage.setDomainData(
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data["canvasBlocker-new-domain-rnd"].domain,
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data["canvasBlocker-new-domain-rnd"].rnd
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);
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if (keys.length === 1){
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return;
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}
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}
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if (data["canvasBlocker-clear-domain-rnd"]){
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persistentRndStorage.clear();
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if (keys.length === 1){
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return;
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}
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}
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notice("pass the message to the tabs");
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browser.tabs.query({}).then(function(tabs){
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tabs.forEach(function(tab){
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browser.tabs.sendMessage(tab.id, data);
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});
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});
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});
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message("register port listener");
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browser.runtime.onConnect.addListener(function(port){
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notice("got port", port);
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verbose("send back the tab id", port.sender.tab.id);
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verbose("send back the persistent random seeds", persistentRndStorage.persistentRnd);
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port.postMessage({
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tabId: port.sender.tab.id,
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persistentRnd: persistentRndStorage.persistentRnd
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});
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var url = new URL(port.sender.url);
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port.onMessage.addListener(function(data){
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if (data.hasOwnProperty("canvasBlocker-notify")){
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if (
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settings.get("showNotifications", url) &&
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!lists.get("ignore").match(url)
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){
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browser.pageAction.show(port.sender.tab.id);
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}
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}
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if (data.hasOwnProperty("canvasBlocker-clear-page-action")){
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notice("Hide page action for tab", port.sender.tab.id);
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browser.pageAction.hide(port.sender.tab.id);
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}
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verbose("got data", data, "from port", port);
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});
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});
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message("register storage change event listener");
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settings.on("showNotifications", function({newValue}){
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if (!newValue){
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message("notifications were disabled -> hide all page actions");
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browser.tabs.query({}).then(function(tabs){
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tabs.forEach(function(tab){
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browser.pageAction.hide(tab.id);
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});
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});
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}
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});
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if (browser.contentScripts){
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let unregister = function(){};
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let lastRegistering;
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const register = function register(){
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logging.message("Register content script for the settings.");
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logging.verbose("Unregister old content script, if present.");
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unregister();
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var data = {};
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settings.forEach(function(def){
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data[def.name] = def.get();
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});
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lastRegistering = data;
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browser.contentScripts.register({
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matches: ["<all_urls>"],
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matchAboutBlank: true,
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allFrames: true,
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runAt: "document_start",
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js: [{
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code: `(function(){
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const settings = require("./settings");
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settings.init(${JSON.stringify(data)});
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}())`
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}]
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}).then(function(api){
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logging.verbose("Content script registered.");
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if (data !== lastRegistering){
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logging.verbose("Multiple content scripts registered at once. Remove unnecessary one.");
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api.unregister();
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}
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else {
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unregister = api.unregister;
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}
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});
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};
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register();
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settings.on("any", register);
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}
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else {
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logging.error("Old Firefox does not support browser.contentScript.register()");
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}
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});
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browser.runtime.onInstalled.addListener(function(){
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message("CanvasBlocker installed");
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});
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message("end");
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}());
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