mirror of
https://github.com/gorhill/uBlock.git
synced 2024-07-03 02:37:21 +02:00
1806 lines
62 KiB
JavaScript
1806 lines
62 KiB
JavaScript
/*******************************************************************************
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uBlock Origin - a comprehensive, efficient content blocker
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Copyright (C) 2014-2015 The uBlock Origin authors
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Copyright (C) 2014-present Raymond Hill
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see {http://www.gnu.org/licenses/}.
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Home: https://github.com/gorhill/uBlock
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*/
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// For background page
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/******************************************************************************/
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import { ubolog } from './console.js';
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import webext from './webext.js';
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/******************************************************************************/
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const manifest = browser.runtime.getManifest();
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vAPI.cantWebsocket =
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browser.webRequest.ResourceType instanceof Object === false ||
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browser.webRequest.ResourceType.WEBSOCKET !== 'websocket';
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vAPI.canWASM = vAPI.webextFlavor.soup.has('chromium') === false;
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if ( vAPI.canWASM === false ) {
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const csp = manifest.content_security_policy;
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vAPI.canWASM = csp !== undefined && csp.indexOf("'wasm-unsafe-eval'") !== -1;
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}
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vAPI.supportsUserStylesheets = vAPI.webextFlavor.soup.has('user_stylesheet');
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const hasOwnProperty = (o, p) =>
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Object.prototype.hasOwnProperty.call(o, p);
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/******************************************************************************/
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vAPI.app = {
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name: manifest.name.replace(/ dev\w+ build/, ''),
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version: (( ) => {
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let version = manifest.version;
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const match = /(\d+\.\d+\.\d+)(?:\.(\d+))?/.exec(version);
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if ( match && match[2] ) {
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const v = parseInt(match[2], 10);
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version = match[1] + (v < 100 ? 'b' + v : 'rc' + (v - 100));
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}
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return version;
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})(),
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intFromVersion: function(s) {
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const parts = s.match(/(?:^|\.|b|rc)\d+/g);
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if ( parts === null ) { return 0; }
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let vint = 0;
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for ( let i = 0; i < 4; i++ ) {
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const pstr = parts[i] || '';
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let pint;
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if ( pstr === '' ) {
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pint = 0;
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} else if ( pstr.startsWith('.') || pstr.startsWith('b') ) {
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pint = parseInt(pstr.slice(1), 10);
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} else if ( pstr.startsWith('rc') ) {
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pint = parseInt(pstr.slice(2), 10) + 100;
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} else {
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pint = parseInt(pstr, 10);
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}
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vint = vint * 1000 + pint;
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}
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return vint;
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},
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restart: function() {
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browser.runtime.reload();
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},
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};
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/******************************************************************************/
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// Generate segments of random six alphanumeric characters, thus one segment
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// is a value out of 36^6 = over 2x10^9 values.
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vAPI.generateSecret = (size = 1) => {
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let secret = '';
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while ( size-- ) {
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secret += (Math.floor(Math.random() * 2176782336) + 2176782336).toString(36).slice(1);
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}
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return secret;
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};
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/*******************************************************************************
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*
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* https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/storage/session
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*
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* Session (in-memory) storage is promise-based in all browsers, no need for
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* a webext polyfill. However, not all browsers supports it in MV2.
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*
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* */
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vAPI.sessionStorage = browser.storage.session || {
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get() {
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return Promise.resolve();
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},
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set() {
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return Promise.resolve();
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},
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remove() {
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return Promise.resolve();
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},
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clear() {
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return Promise.resolve();
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},
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unavailable: true,
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};
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/*******************************************************************************
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*
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* Data written to and read from storage.local will be mirrored to in-memory
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* storage.session.
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*
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* Data read from storage.local will be first fetched from storage.session,
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* then if not available, read from storage.local.
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*
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* */
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vAPI.storage = {
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get(key, ...args) {
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return webext.storage.local.get(key, ...args).catch(reason => {
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console.log(reason);
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});
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},
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set(...args) {
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return webext.storage.local.set(...args).catch(reason => {
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console.log(reason);
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});
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},
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remove(...args) {
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return webext.storage.local.remove(...args).catch(reason => {
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console.log(reason);
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});
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},
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clear(...args) {
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return webext.storage.local.clear(...args).catch(reason => {
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console.log(reason);
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});
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},
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QUOTA_BYTES: browser.storage.local.QUOTA_BYTES,
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};
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// Not all platforms support getBytesInUse
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if ( webext.storage.local.getBytesInUse instanceof Function ) {
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vAPI.storage.getBytesInUse = function(...args) {
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return webext.storage.local.getBytesInUse(...args).catch(reason => {
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console.log(reason);
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});
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};
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}
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/******************************************************************************/
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/******************************************************************************/
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// https://github.com/gorhill/uMatrix/issues/234
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// https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API/privacy/network
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// https://github.com/gorhill/uBlock/issues/2048
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// Do not mess up with existing settings if not assigning them stricter
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// values.
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vAPI.browserSettings = (( ) => {
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// Not all platforms support `browser.privacy`.
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const bp = webext.privacy;
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if ( bp instanceof Object === false ) { return; }
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return {
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// https://github.com/uBlockOrigin/uBlock-issues/issues/1723#issuecomment-919913361
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canLeakLocalIPAddresses:
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vAPI.webextFlavor.soup.has('firefox') &&
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vAPI.webextFlavor.soup.has('mobile'),
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set: function(details) {
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for ( const setting in details ) {
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if ( hasOwnProperty(details, setting) === false ) { continue; }
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switch ( setting ) {
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case 'prefetching': {
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const enabled = !!details[setting];
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if ( enabled ) {
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bp.network.networkPredictionEnabled.clear({
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scope: 'regular',
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});
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} else {
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bp.network.networkPredictionEnabled.set({
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value: false,
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scope: 'regular',
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});
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}
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if ( vAPI.prefetching instanceof Function ) {
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vAPI.prefetching(enabled);
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}
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break;
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}
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case 'hyperlinkAuditing': {
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if ( details[setting] ) {
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bp.websites.hyperlinkAuditingEnabled.clear({
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scope: 'regular',
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});
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} else {
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bp.websites.hyperlinkAuditingEnabled.set({
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value: false,
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scope: 'regular',
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});
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}
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break;
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}
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case 'webrtcIPAddress': {
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// https://github.com/uBlockOrigin/uBlock-issues/issues/1928
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// https://www.reddit.com/r/uBlockOrigin/comments/sl7p74/
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// Hypothetical: some browsers _think_ uBO is still using
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// the setting possibly based on cached state from the
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// past, and making an explicit API call that uBO is not
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// using the setting appears to solve those unexpected
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// reported occurrences of uBO interfering despite never
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// using the API.
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const mustEnable = !details[setting];
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if ( this.canLeakLocalIPAddresses === false ) {
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if ( mustEnable && vAPI.webextFlavor.soup.has('chromium') ) {
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bp.network.webRTCIPHandlingPolicy.clear({
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scope: 'regular',
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});
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}
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continue;
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}
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if ( mustEnable ) {
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bp.network.webRTCIPHandlingPolicy.set({
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value: 'default_public_interface_only',
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scope: 'regular'
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});
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} else {
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bp.network.webRTCIPHandlingPolicy.clear({
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scope: 'regular',
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});
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}
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break;
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}
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default:
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break;
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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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vAPI.isBehindTheSceneTabId = function(tabId) {
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return tabId < 0;
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};
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vAPI.unsetTabId = 0;
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vAPI.noTabId = -1; // definitely not any existing tab
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// To ensure we always use a good tab id
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const toTabId = function(tabId) {
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return typeof tabId === 'number' && isNaN(tabId) === false
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? tabId
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: 0;
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};
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// https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API/webNavigation
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// https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API/tabs
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vAPI.Tabs = class {
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constructor() {
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browser.webNavigation.onCreatedNavigationTarget.addListener(details => {
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this.onCreatedNavigationTargetHandler(details);
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});
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browser.webNavigation.onCommitted.addListener(details => {
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const { frameId, tabId } = details;
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if ( frameId === 0 && tabId > 0 && details.transitionType === 'reload' ) {
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if ( vAPI.net && vAPI.net.hasUnprocessedRequest(tabId) ) {
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vAPI.net.removeUnprocessedRequest(tabId);
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}
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}
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this.onCommittedHandler(details);
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});
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browser.tabs.onUpdated.addListener((tabId, changeInfo, tab) => {
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this.onUpdatedHandler(tabId, changeInfo, tab);
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});
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browser.tabs.onActivated.addListener(details => {
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this.onActivated(details);
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});
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// https://github.com/uBlockOrigin/uBlock-issues/issues/151
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// https://github.com/uBlockOrigin/uBlock-issues/issues/680#issuecomment-515215220
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if ( browser.windows instanceof Object ) {
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browser.windows.onFocusChanged.addListener(windowId => {
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this.onFocusChangedHandler(windowId);
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});
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}
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browser.tabs.onRemoved.addListener((tabId, details) => {
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if ( vAPI.net && vAPI.net.hasUnprocessedRequest(tabId) ) {
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vAPI.net.removeUnprocessedRequest(tabId);
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}
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this.onRemovedHandler(tabId, details);
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});
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}
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async executeScript(...args) {
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let result;
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try {
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result = await webext.tabs.executeScript(...args);
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}
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catch(reason) {
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}
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return Array.isArray(result) ? result : [];
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}
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async get(tabId) {
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if ( tabId === null ) {
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return this.getCurrent();
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}
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if ( tabId <= 0 ) { return null; }
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let tab;
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try {
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tab = await webext.tabs.get(tabId);
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}
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catch(reason) {
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}
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return tab instanceof Object ? tab : null;
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}
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async getCurrent() {
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const tabs = await this.query({ active: true, currentWindow: true });
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return tabs.length !== 0 ? tabs[0] : null;
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}
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async insertCSS(tabId, details) {
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if ( vAPI.supportsUserStylesheets ) {
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details.cssOrigin = 'user';
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}
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try {
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await webext.tabs.insertCSS(...arguments);
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}
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catch(reason) {
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}
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}
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async query(queryInfo) {
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let tabs;
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try {
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tabs = await webext.tabs.query(queryInfo);
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}
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catch(reason) {
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}
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return Array.isArray(tabs) ? tabs : [];
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}
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async removeCSS(tabId, details) {
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if ( vAPI.supportsUserStylesheets ) {
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details.cssOrigin = 'user';
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}
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try {
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await webext.tabs.removeCSS(...arguments);
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}
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catch(reason) {
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}
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}
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// Properties of the details object:
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// - url: 'URL', => the address that will be opened
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// - index: -1, => undefined: end of the list, -1: following tab,
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// or after index
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// - active: false, => opens the tab... in background: true,
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// foreground: undefined
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// - popup: 'popup' => open in a new window
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async create(url, details) {
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if ( details.active === undefined ) {
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details.active = true;
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}
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const subWrapper = async ( ) => {
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const updateDetails = {
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url: url,
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active: !!details.active
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};
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// Opening a tab from incognito window won't focus the window
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// in which the tab was opened
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const focusWindow = tab => {
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if ( tab.active && vAPI.windows instanceof Object ) {
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vAPI.windows.update(tab.windowId, { focused: true });
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}
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};
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if ( !details.tabId ) {
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if ( details.index !== undefined ) {
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updateDetails.index = details.index;
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}
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browser.tabs.create(updateDetails, focusWindow);
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return;
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}
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// update doesn't accept index, must use move
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const tab = await vAPI.tabs.update(
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toTabId(details.tabId),
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updateDetails
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);
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// if the tab doesn't exist
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if ( tab === null ) {
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browser.tabs.create(updateDetails, focusWindow);
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} else if ( details.index !== undefined ) {
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browser.tabs.move(tab.id, { index: details.index });
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}
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};
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// Open in a standalone window
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//
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// https://github.com/uBlockOrigin/uBlock-issues/issues/168#issuecomment-413038191
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// Not all platforms support vAPI.windows.
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//
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// For some reasons, some platforms do not honor the left,top
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// position when specified. I found that further calling
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// windows.update again with the same position _may_ help.
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//
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// https://github.com/uBlockOrigin/uBlock-issues/issues/2249
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// Mind that the creation of the popup window might fail.
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if ( details.popup !== undefined && vAPI.windows instanceof Object ) {
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const basicDetails = {
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url: details.url,
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type: details.popup,
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};
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const shouldRestorePosition = details.box instanceof Object;
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const extraDetails = shouldRestorePosition
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? Object.assign({}, basicDetails, details.box)
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: basicDetails;
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const win = await vAPI.windows.create(extraDetails);
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if ( win === null ) {
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if ( shouldRestorePosition === false ) { return; }
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return vAPI.windows.create(basicDetails);
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}
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if ( shouldRestorePosition === false ) { return; }
|
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if ( win.left === details.box.left ) {
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if ( win.top === details.box.top ) { return; }
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}
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vAPI.windows.update(win.id, {
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left: details.box.left,
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top: details.box.top
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});
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return;
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}
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if ( details.index !== -1 ) {
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subWrapper();
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return;
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}
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const tab = await vAPI.tabs.getCurrent();
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if ( tab !== null ) {
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details.index = tab.index + 1;
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} else {
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details.index = undefined;
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}
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subWrapper();
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}
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// Properties of the details object:
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// - url: 'URL', => the address that will be opened
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// - tabId: 1, => the tab is used if set, instead of creating a new one
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// - index: -1, => undefined: end of the list, -1: following tab, or
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// after index
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// - active: false, => opens the tab in background - true and undefined:
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// foreground
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// - select: true, => if a tab is already opened with that url, then select
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// it instead of opening a new one
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// - popup: true => open in a new window
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|
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async open(details) {
|
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let targetURL = details.url;
|
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if ( typeof targetURL !== 'string' || targetURL === '' ) {
|
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return null;
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}
|
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|
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// extension pages
|
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if ( /^[\w-]{2,}:/.test(targetURL) !== true ) {
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targetURL = vAPI.getURL(targetURL);
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}
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|
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if ( !details.select ) {
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this.create(targetURL, details);
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return;
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}
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|
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// https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API/tabs/query#Parameters
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// "Note that fragment identifiers are not matched."
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// Fragment identifiers ARE matched -- we need to remove the fragment.
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const pos = targetURL.indexOf('#');
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const targetURLWithoutHash = pos === -1
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? targetURL
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: targetURL.slice(0, pos);
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const tabs = await vAPI.tabs.query({ url: targetURLWithoutHash });
|
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if ( tabs.length === 0 ) {
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this.create(targetURL, details);
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return;
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}
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let tab = tabs[0];
|
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const updateDetails = { active: true };
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// https://github.com/uBlockOrigin/uBlock-issues/issues/592
|
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if ( tab.url.startsWith(targetURL) === false ) {
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updateDetails.url = targetURL;
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}
|
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tab = await vAPI.tabs.update(tab.id, updateDetails);
|
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if ( vAPI.windows instanceof Object === false ) { return; }
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vAPI.windows.update(tab.windowId, { focused: true });
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}
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async update() {
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let tab;
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try {
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tab = await webext.tabs.update(...arguments);
|
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}
|
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catch (reason) {
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}
|
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return tab instanceof Object ? tab : null;
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}
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|
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// Replace the URL of a tab. Noop if the tab does not exist.
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replace(tabId, url) {
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tabId = toTabId(tabId);
|
|
if ( tabId === 0 ) { return; }
|
|
|
|
let targetURL = url;
|
|
|
|
// extension pages
|
|
if ( /^[\w-]{2,}:/.test(targetURL) !== true ) {
|
|
targetURL = vAPI.getURL(targetURL);
|
|
}
|
|
|
|
return vAPI.tabs.update(tabId, { url: targetURL });
|
|
}
|
|
|
|
async remove(tabId) {
|
|
tabId = toTabId(tabId);
|
|
if ( tabId === 0 ) { return; }
|
|
try {
|
|
await webext.tabs.remove(tabId);
|
|
}
|
|
catch (reason) {
|
|
}
|
|
}
|
|
|
|
async reload(tabId, bypassCache = false) {
|
|
tabId = toTabId(tabId);
|
|
if ( tabId === 0 ) { return; }
|
|
try {
|
|
await webext.tabs.reload(
|
|
tabId,
|
|
{ bypassCache: bypassCache === true }
|
|
);
|
|
}
|
|
catch (reason) {
|
|
}
|
|
}
|
|
|
|
async select(tabId) {
|
|
tabId = toTabId(tabId);
|
|
if ( tabId === 0 ) { return; }
|
|
const tab = await vAPI.tabs.update(tabId, { active: true });
|
|
if ( tab === null ) { return; }
|
|
if ( vAPI.windows instanceof Object === false ) { return; }
|
|
vAPI.windows.update(tab.windowId, { focused: true });
|
|
}
|
|
|
|
// https://forums.lanik.us/viewtopic.php?f=62&t=32826
|
|
// Chromium-based browsers: sanitize target URL. I've seen data: URI with
|
|
// newline characters in standard fields, possibly as a way of evading
|
|
// filters. As per spec, there should be no whitespaces in a data: URI's
|
|
// standard fields.
|
|
|
|
sanitizeURL(url) {
|
|
if ( url.startsWith('data:') === false ) { return url; }
|
|
const pos = url.indexOf(',');
|
|
if ( pos === -1 ) { return url; }
|
|
const s = url.slice(0, pos);
|
|
if ( s.search(/\s/) === -1 ) { return url; }
|
|
return s.replace(/\s+/, '') + url.slice(pos);
|
|
}
|
|
|
|
onCreatedNavigationTargetHandler(details) {
|
|
if ( typeof details.url !== 'string' ) {
|
|
details.url = '';
|
|
}
|
|
if ( /^https?:\/\//.test(details.url) === false ) {
|
|
details.frameId = 0;
|
|
details.url = this.sanitizeURL(details.url);
|
|
this.onNavigation(details);
|
|
}
|
|
this.onCreated(details);
|
|
}
|
|
|
|
onCommittedHandler(details) {
|
|
details.url = this.sanitizeURL(details.url);
|
|
this.onNavigation(details);
|
|
}
|
|
|
|
onUpdatedHandler(tabId, changeInfo, tab) {
|
|
// Ignore uninteresting update events
|
|
const { status = '', title = '', url = '' } = changeInfo;
|
|
if ( status === '' && title === '' && url === '' ) { return; }
|
|
// https://github.com/gorhill/uBlock/issues/3073
|
|
// Fall back to `tab.url` when `changeInfo.url` is not set.
|
|
if ( url === '' ) {
|
|
changeInfo.url = tab && tab.url;
|
|
}
|
|
if ( changeInfo.url ) {
|
|
changeInfo.url = this.sanitizeURL(changeInfo.url);
|
|
}
|
|
this.onUpdated(tabId, changeInfo, tab);
|
|
}
|
|
|
|
onRemovedHandler(tabId, details) {
|
|
this.onClosed(tabId, details);
|
|
}
|
|
|
|
onFocusChangedHandler(windowId) {
|
|
if ( windowId === browser.windows.WINDOW_ID_NONE ) { return; }
|
|
vAPI.tabs.query({ active: true, windowId }).then(tabs => {
|
|
if ( tabs.length === 0 ) { return; }
|
|
const tab = tabs[0];
|
|
this.onActivated({ tabId: tab.id, windowId: tab.windowId });
|
|
});
|
|
}
|
|
|
|
onActivated(/* details */) {
|
|
}
|
|
|
|
onClosed(/* tabId, details */) {
|
|
}
|
|
|
|
onCreated(/* details */) {
|
|
}
|
|
|
|
onNavigation(/* details */) {
|
|
}
|
|
|
|
onUpdated(/* tabId, changeInfo, tab */) {
|
|
}
|
|
};
|
|
|
|
/******************************************************************************/
|
|
/******************************************************************************/
|
|
|
|
if ( webext.windows instanceof Object ) {
|
|
vAPI.windows = {
|
|
get: async function() {
|
|
let win;
|
|
try {
|
|
win = await webext.windows.get(...arguments);
|
|
}
|
|
catch (reason) {
|
|
}
|
|
return win instanceof Object ? win : null;
|
|
},
|
|
create: async function() {
|
|
let win;
|
|
try {
|
|
win = await webext.windows.create(...arguments);
|
|
}
|
|
catch (reason) {
|
|
}
|
|
return win instanceof Object ? win : null;
|
|
},
|
|
update: async function() {
|
|
let win;
|
|
try {
|
|
win = await webext.windows.update(...arguments);
|
|
}
|
|
catch (reason) {
|
|
}
|
|
return win instanceof Object ? win : null;
|
|
},
|
|
};
|
|
}
|
|
|
|
/******************************************************************************/
|
|
/******************************************************************************/
|
|
|
|
if ( webext.browserAction instanceof Object ) {
|
|
vAPI.browserAction = {
|
|
setTitle: async function() {
|
|
try {
|
|
await webext.browserAction.setTitle(...arguments);
|
|
}
|
|
catch (reason) {
|
|
}
|
|
},
|
|
};
|
|
// Not supported on Firefox for Android
|
|
if ( webext.browserAction.setIcon ) {
|
|
vAPI.browserAction.setBadgeTextColor = async function() {
|
|
try {
|
|
await webext.browserAction.setBadgeTextColor(...arguments);
|
|
}
|
|
catch (reason) {
|
|
}
|
|
};
|
|
vAPI.browserAction.setBadgeBackgroundColor = async function() {
|
|
try {
|
|
await webext.browserAction.setBadgeBackgroundColor(...arguments);
|
|
}
|
|
catch (reason) {
|
|
}
|
|
};
|
|
vAPI.browserAction.setBadgeText = async function() {
|
|
try {
|
|
await webext.browserAction.setBadgeText(...arguments);
|
|
}
|
|
catch (reason) {
|
|
}
|
|
};
|
|
vAPI.browserAction.setIcon = async function() {
|
|
try {
|
|
await webext.browserAction.setIcon(...arguments);
|
|
}
|
|
catch (reason) {
|
|
}
|
|
};
|
|
}
|
|
}
|
|
|
|
/******************************************************************************/
|
|
/******************************************************************************/
|
|
|
|
// Must read: https://code.google.com/p/chromium/issues/detail?id=410868#c8
|
|
|
|
// https://github.com/chrisaljoudi/uBlock/issues/19
|
|
// https://github.com/chrisaljoudi/uBlock/issues/207
|
|
// Since we may be called asynchronously, the tab id may not exist
|
|
// anymore, so this ensures it does still exist.
|
|
|
|
// https://developer.mozilla.org/en-US/Add-ons/WebExtensions/API/browserAction#Browser_compatibility
|
|
// Firefox for Android does no support browser.browserAction.setIcon().
|
|
// Performance: use ImageData for platforms supporting it.
|
|
|
|
// https://github.com/uBlockOrigin/uBlock-issues/issues/32
|
|
// Ensure ImageData for toolbar icon is valid before use.
|
|
|
|
{
|
|
const browserAction = vAPI.browserAction;
|
|
const titleTemplate = `${browser.runtime.getManifest().browser_action.default_title} ({badge})`;
|
|
const icons = [
|
|
{ path: {
|
|
'16': 'img/icon_16-off.png',
|
|
'32': 'img/icon_32-off.png',
|
|
'64': 'img/icon_64-off.png',
|
|
} },
|
|
{ path: {
|
|
'16': 'img/icon_16.png',
|
|
'32': 'img/icon_32.png',
|
|
'64': 'img/icon_64.png',
|
|
} },
|
|
];
|
|
|
|
(( ) => {
|
|
if ( browserAction.setIcon === undefined ) { return; }
|
|
|
|
// The global badge text and background color.
|
|
if ( browserAction.setBadgeBackgroundColor !== undefined ) {
|
|
browserAction.setBadgeBackgroundColor({ color: '#666666' });
|
|
}
|
|
if ( browserAction.setBadgeTextColor !== undefined ) {
|
|
browserAction.setBadgeTextColor({ color: '#FFFFFF' });
|
|
}
|
|
|
|
// As of 2018-05, benchmarks show that only Chromium benefits for sure
|
|
// from using ImageData.
|
|
//
|
|
// Chromium creates a new ImageData instance every call to setIcon
|
|
// with paths:
|
|
// https://cs.chromium.org/chromium/src/extensions/renderer/resources/set_icon.js?l=56&rcl=99be185c25738437ecfa0dafba72a26114196631
|
|
//
|
|
// Firefox uses an internal cache for each setIcon's paths:
|
|
// https://searchfox.org/mozilla-central/rev/5ff2d7683078c96e4b11b8a13674daded935aa44/browser/components/extensions/parent/ext-browserAction.js#631
|
|
if ( vAPI.webextFlavor.soup.has('chromium') === false ) { return; }
|
|
|
|
const imgs = [];
|
|
for ( let i = 0; i < icons.length; i++ ) {
|
|
for ( const key of Object.keys(icons[i].path) ) {
|
|
if ( parseInt(key, 10) >= 64 ) { continue; }
|
|
imgs.push({ i: i, p: key, cached: false });
|
|
}
|
|
}
|
|
|
|
// https://github.com/uBlockOrigin/uBlock-issues/issues/296
|
|
const safeGetImageData = function(ctx, w, h) {
|
|
let data;
|
|
try {
|
|
data = ctx.getImageData(0, 0, w, h);
|
|
} catch(ex) {
|
|
}
|
|
return data;
|
|
};
|
|
|
|
const onLoaded = function() {
|
|
for ( const img of imgs ) {
|
|
if ( img.r.complete === false ) { return; }
|
|
}
|
|
const ctx = document.createElement('canvas')
|
|
.getContext('2d', { willReadFrequently: true });
|
|
const iconData = [ null, null ];
|
|
for ( const img of imgs ) {
|
|
if ( img.cached ) { continue; }
|
|
const w = img.r.naturalWidth, h = img.r.naturalHeight;
|
|
ctx.width = w; ctx.height = h;
|
|
ctx.clearRect(0, 0, w, h);
|
|
ctx.drawImage(img.r, 0, 0);
|
|
if ( iconData[img.i] === null ) { iconData[img.i] = {}; }
|
|
const imgData = safeGetImageData(ctx, w, h);
|
|
if (
|
|
imgData instanceof Object === false ||
|
|
imgData.data instanceof Uint8ClampedArray === false ||
|
|
imgData.data[0] !== 0 ||
|
|
imgData.data[1] !== 0 ||
|
|
imgData.data[2] !== 0 ||
|
|
imgData.data[3] !== 0
|
|
) {
|
|
return;
|
|
}
|
|
iconData[img.i][img.p] = imgData;
|
|
img.cached = true;
|
|
}
|
|
for ( let i = 0; i < iconData.length; i++ ) {
|
|
if ( iconData[i] ) {
|
|
icons[i] = { imageData: iconData[i] };
|
|
}
|
|
}
|
|
};
|
|
for ( const img of imgs ) {
|
|
img.r = new Image();
|
|
img.r.addEventListener('load', onLoaded, { once: true });
|
|
img.r.src = icons[img.i].path[img.p];
|
|
}
|
|
})();
|
|
|
|
// parts: bit 0 = icon
|
|
// bit 1 = badge text
|
|
// bit 2 = badge color
|
|
// bit 3 = hide badge
|
|
|
|
vAPI.setIcon = async function(tabId, details) {
|
|
tabId = toTabId(tabId);
|
|
if ( tabId === 0 ) { return; }
|
|
|
|
const tab = await vAPI.tabs.get(tabId);
|
|
if ( tab === null ) { return; }
|
|
|
|
const hasUnprocessedRequest = vAPI.net && vAPI.net.hasUnprocessedRequest(tabId);
|
|
const { parts, state } = details;
|
|
const { badge, color } = hasUnprocessedRequest
|
|
? { badge: '!', color: '#FC0' }
|
|
: details;
|
|
|
|
if ( browserAction.setIcon !== undefined ) {
|
|
if ( parts === undefined || (parts & 0b0001) !== 0 ) {
|
|
browserAction.setIcon(
|
|
Object.assign({ tabId: tab.id }, icons[state])
|
|
);
|
|
}
|
|
if ( (parts & 0b0010) !== 0 ) {
|
|
browserAction.setBadgeText({
|
|
tabId: tab.id,
|
|
text: (parts & 0b1000) === 0 ? badge : ''
|
|
});
|
|
}
|
|
if ( (parts & 0b0100) !== 0 ) {
|
|
browserAction.setBadgeBackgroundColor({ tabId: tab.id, color });
|
|
}
|
|
}
|
|
|
|
// Insert the badge text in the title if:
|
|
// - the platform does not support browserAction.setIcon(); OR
|
|
// - the rendering of the badge is disabled
|
|
if ( browserAction.setTitle !== undefined ) {
|
|
const title = titleTemplate.replace('{badge}',
|
|
state === 1 ? (badge !== '' ? badge : '0') : 'off'
|
|
);
|
|
browserAction.setTitle({ tabId: tab.id, title });
|
|
}
|
|
|
|
if ( vAPI.contextMenu instanceof Object ) {
|
|
vAPI.contextMenu.onMustUpdate(tabId);
|
|
}
|
|
};
|
|
|
|
vAPI.setDefaultIcon = function(flavor, text) {
|
|
if ( browserAction.setIcon === undefined ) { return; }
|
|
browserAction.setIcon({
|
|
path: {
|
|
'16': `img/icon_16${flavor}.png`,
|
|
'32': `img/icon_32${flavor}.png`,
|
|
'64': `img/icon_64${flavor}.png`,
|
|
}
|
|
});
|
|
browserAction.setBadgeText({ text });
|
|
browserAction.setBadgeBackgroundColor({
|
|
color: text === '!' ? '#FC0' : '#666'
|
|
});
|
|
};
|
|
}
|
|
|
|
browser.browserAction.onClicked.addListener(function(tab) {
|
|
vAPI.tabs.open({
|
|
select: true,
|
|
url: `popup-fenix.html?tabId=${tab.id}&intab=1`,
|
|
});
|
|
});
|
|
|
|
/******************************************************************************/
|
|
/******************************************************************************/
|
|
|
|
// https://github.com/uBlockOrigin/uBlock-issues/issues/710
|
|
// uBO uses only ports to communicate with its auxiliary pages and
|
|
// content scripts. Whether a message can trigger a privileged operation is
|
|
// decided based on whether the port from which a message is received is
|
|
// privileged, which is a status evaluated once, at port connection time.
|
|
//
|
|
// https://github.com/uBlockOrigin/uBlock-issues/issues/1992
|
|
// If present, use MessageSender.origin to determine whether the port is
|
|
// from a privileged page, otherwise use MessageSender.url.
|
|
// MessageSender.origin is more reliable as it is not spoofable by a
|
|
// compromised renderer.
|
|
|
|
vAPI.messaging = {
|
|
ports: new Map(),
|
|
listeners: new Map(),
|
|
defaultHandler: null,
|
|
PRIVILEGED_ORIGIN: vAPI.getURL('').slice(0, -1),
|
|
NOOPFUNC: function(){},
|
|
UNHANDLED: 'vAPI.messaging.notHandled',
|
|
|
|
listen: function(details) {
|
|
this.listeners.set(details.name, {
|
|
fn: details.listener,
|
|
privileged: details.privileged === true
|
|
});
|
|
},
|
|
|
|
onPortDisconnect: function(port) {
|
|
this.ports.delete(port.name);
|
|
},
|
|
|
|
// https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API/runtime/Port
|
|
// port.sender is always present for onConnect() listeners.
|
|
onPortConnect: function(port) {
|
|
port.onDisconnect.addListener(port =>
|
|
this.onPortDisconnect(port)
|
|
);
|
|
port.onMessage.addListener((request, port) =>
|
|
this.onPortMessage(request, port)
|
|
);
|
|
const portDetails = { port };
|
|
const sender = port.sender;
|
|
const { origin, tab, url } = sender;
|
|
portDetails.frameId = sender.frameId;
|
|
portDetails.frameURL = url;
|
|
portDetails.privileged = origin !== undefined
|
|
? origin === this.PRIVILEGED_ORIGIN
|
|
: url.startsWith(this.PRIVILEGED_ORIGIN);
|
|
if ( tab ) {
|
|
portDetails.tabId = tab.id;
|
|
portDetails.tabURL = tab.url;
|
|
}
|
|
this.ports.set(port.name, portDetails);
|
|
// https://bugzilla.mozilla.org/show_bug.cgi?id=1652925#c24
|
|
port.sender = undefined;
|
|
},
|
|
|
|
setup: function(defaultHandler) {
|
|
if ( this.defaultHandler !== null ) { return; }
|
|
|
|
if ( typeof defaultHandler !== 'function' ) {
|
|
defaultHandler = function() {
|
|
return this.UNHANDLED;
|
|
};
|
|
}
|
|
this.defaultHandler = defaultHandler;
|
|
|
|
browser.runtime.onConnect.addListener(
|
|
port => this.onPortConnect(port)
|
|
);
|
|
|
|
// https://bugzilla.mozilla.org/show_bug.cgi?id=1392067
|
|
// Workaround: manually remove ports matching removed tab.
|
|
if (
|
|
vAPI.webextFlavor.soup.has('firefox') &&
|
|
vAPI.webextFlavor.major < 61
|
|
) {
|
|
browser.tabs.onRemoved.addListener(tabId => {
|
|
for ( const { port, tabId: portTabId } of this.ports.values() ) {
|
|
if ( portTabId !== tabId ) { continue; }
|
|
this.onPortDisconnect(port);
|
|
}
|
|
});
|
|
}
|
|
},
|
|
|
|
onFrameworkMessage: function(request, port, callback) {
|
|
const portDetails = this.ports.get(port.name) || {};
|
|
const tabId = portDetails.tabId;
|
|
const msg = request.msg;
|
|
switch ( msg.what ) {
|
|
case 'localStorage': {
|
|
if ( portDetails.privileged !== true ) { break; }
|
|
const args = msg.args || [];
|
|
vAPI.localStorage[msg.fn](...args).then(result => {
|
|
callback(result);
|
|
});
|
|
break;
|
|
}
|
|
case 'userCSS': {
|
|
if ( tabId === undefined ) { break; }
|
|
const promises = [];
|
|
if ( msg.add ) {
|
|
const details = {
|
|
code: undefined,
|
|
frameId: portDetails.frameId,
|
|
matchAboutBlank: true,
|
|
runAt: 'document_start',
|
|
};
|
|
for ( const cssText of msg.add ) {
|
|
details.code = cssText;
|
|
promises.push(vAPI.tabs.insertCSS(tabId, details));
|
|
}
|
|
}
|
|
if ( msg.remove ) {
|
|
const details = {
|
|
code: undefined,
|
|
frameId: portDetails.frameId,
|
|
matchAboutBlank: true,
|
|
};
|
|
for ( const cssText of msg.remove ) {
|
|
details.code = cssText;
|
|
promises.push(vAPI.tabs.removeCSS(tabId, details));
|
|
}
|
|
}
|
|
Promise.all(promises).then(( ) => {
|
|
callback();
|
|
});
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
},
|
|
|
|
// Use a wrapper to avoid closure and to allow reuse.
|
|
CallbackWrapper: class {
|
|
constructor(messaging, port, msgId) {
|
|
this.messaging = messaging;
|
|
this.callback = this.proxy.bind(this); // bind once
|
|
this.init(port, msgId);
|
|
}
|
|
init(port, msgId) {
|
|
this.port = port;
|
|
this.msgId = msgId;
|
|
return this;
|
|
}
|
|
proxy(response) {
|
|
// https://github.com/chrisaljoudi/uBlock/issues/383
|
|
try {
|
|
this.port.postMessage({
|
|
msgId: this.msgId,
|
|
msg: response !== undefined ? response : null,
|
|
});
|
|
} catch (ex) {
|
|
this.messaging.onPortDisconnect(this.port);
|
|
}
|
|
// Store for reuse
|
|
this.port = null;
|
|
this.messaging.callbackWrapperJunkyard.push(this);
|
|
}
|
|
},
|
|
|
|
callbackWrapperJunkyard: [],
|
|
|
|
callbackWrapperFactory: function(port, msgId) {
|
|
return this.callbackWrapperJunkyard.length !== 0
|
|
? this.callbackWrapperJunkyard.pop().init(port, msgId)
|
|
: new this.CallbackWrapper(this, port, msgId);
|
|
},
|
|
|
|
onPortMessage: function(request, port) {
|
|
// prepare response
|
|
let callback = this.NOOPFUNC;
|
|
if ( request.msgId !== undefined ) {
|
|
callback = this.callbackWrapperFactory(port, request.msgId).callback;
|
|
}
|
|
|
|
// Content process to main process: framework handler.
|
|
if ( request.channel === 'vapi' ) {
|
|
this.onFrameworkMessage(request, port, callback);
|
|
return;
|
|
}
|
|
|
|
// Auxiliary process to main process: specific handler
|
|
const portDetails = this.ports.get(port.name);
|
|
if ( portDetails === undefined ) { return; }
|
|
|
|
const listenerDetails = this.listeners.get(request.channel);
|
|
let r = this.UNHANDLED;
|
|
if (
|
|
(listenerDetails !== undefined) &&
|
|
(listenerDetails.privileged === false || portDetails.privileged)
|
|
|
|
) {
|
|
r = listenerDetails.fn(request.msg, portDetails, callback);
|
|
}
|
|
if ( r !== this.UNHANDLED ) { return; }
|
|
|
|
// Auxiliary process to main process: default handler
|
|
if ( portDetails.privileged ) {
|
|
r = this.defaultHandler(request.msg, portDetails, callback);
|
|
if ( r !== this.UNHANDLED ) { return; }
|
|
}
|
|
|
|
// Auxiliary process to main process: no handler
|
|
ubolog(
|
|
`vAPI.messaging.onPortMessage > unhandled request: ${JSON.stringify(request.msg)}`,
|
|
request
|
|
);
|
|
|
|
// Need to callback anyways in case caller expected an answer, or
|
|
// else there is a memory leak on caller's side
|
|
callback();
|
|
},
|
|
};
|
|
|
|
/******************************************************************************/
|
|
/******************************************************************************/
|
|
|
|
// https://github.com/gorhill/uBlock/issues/3474
|
|
// https://github.com/gorhill/uBlock/issues/2823
|
|
// Foil ability of web pages to identify uBO through
|
|
// its web accessible resources.
|
|
// https://github.com/gorhill/uBlock/issues/3497
|
|
// Prevent web pages from interfering with uBO's element picker
|
|
// https://github.com/uBlockOrigin/uBlock-issues/issues/550
|
|
// Support using a new secret for every network request.
|
|
|
|
{
|
|
const root = vAPI.getURL('/');
|
|
const reSecret = /\?secret=(\w+)/;
|
|
const shortSecrets = [];
|
|
let lastShortSecretTime = 0;
|
|
|
|
// Long secrets are valid until revoked or uBO restarts. The realm is one
|
|
// value out of 36^18 = over 10^28 values.
|
|
const longSecrets = new Set();
|
|
|
|
const guard = details => {
|
|
const match = reSecret.exec(details.url);
|
|
if ( match === null ) { return { cancel: true }; }
|
|
const secret = match[1];
|
|
if ( longSecrets.has(secret) ) { return; }
|
|
const pos = shortSecrets.indexOf(secret);
|
|
if ( pos === -1 ) { return { cancel: true }; }
|
|
shortSecrets.splice(pos, 1);
|
|
};
|
|
|
|
browser.webRequest.onBeforeRequest.addListener(
|
|
guard,
|
|
{
|
|
urls: [ root + 'web_accessible_resources/*' ]
|
|
},
|
|
[ 'blocking' ]
|
|
);
|
|
|
|
vAPI.warSecret = {
|
|
short: ( ) => {
|
|
if ( shortSecrets.length !== 0 ) {
|
|
if ( (Date.now() - lastShortSecretTime) > 5000 ) {
|
|
shortSecrets.splice(0);
|
|
} else if ( shortSecrets.length > 256 ) {
|
|
shortSecrets.splice(0, shortSecrets.length - 192);
|
|
}
|
|
}
|
|
lastShortSecretTime = Date.now();
|
|
const secret = vAPI.generateSecret();
|
|
shortSecrets.push(secret);
|
|
return secret;
|
|
},
|
|
long: previous => {
|
|
if ( previous !== undefined ) {
|
|
longSecrets.delete(previous);
|
|
}
|
|
const secret = vAPI.generateSecret(3);
|
|
longSecrets.add(secret);
|
|
return secret;
|
|
},
|
|
};
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
vAPI.Net = class {
|
|
constructor() {
|
|
this.validTypes = new Set();
|
|
{
|
|
const wrrt = browser.webRequest.ResourceType;
|
|
for ( const typeKey in wrrt ) {
|
|
if ( hasOwnProperty(wrrt, typeKey) ) {
|
|
this.validTypes.add(wrrt[typeKey]);
|
|
}
|
|
}
|
|
}
|
|
this.suspendableListener = undefined;
|
|
this.deferredSuspendableListener = undefined;
|
|
this.listenerMap = new WeakMap();
|
|
this.suspendDepth = 0;
|
|
this.unprocessedTabs = new Map();
|
|
|
|
browser.webRequest.onBeforeRequest.addListener(
|
|
details => {
|
|
this.normalizeDetails(details);
|
|
if ( this.suspendDepth !== 0 && details.tabId >= 0 ) {
|
|
return this.suspendOneRequest(details);
|
|
}
|
|
return this.onBeforeSuspendableRequest(details);
|
|
},
|
|
this.denormalizeFilters({ urls: [ 'http://*/*', 'https://*/*' ] }),
|
|
[ 'blocking' ]
|
|
);
|
|
|
|
vAPI.setDefaultIcon('-loading', '');
|
|
}
|
|
setOptions(/* options */) {
|
|
}
|
|
normalizeDetails(/* details */) {
|
|
}
|
|
denormalizeFilters(filters) {
|
|
const urls = filters.urls || [ '<all_urls>' ];
|
|
let types = filters.types;
|
|
if ( Array.isArray(types) ) {
|
|
types = this.denormalizeTypes(types);
|
|
}
|
|
if (
|
|
(this.validTypes.has('websocket')) &&
|
|
(types === undefined || types.indexOf('websocket') !== -1) &&
|
|
(urls.indexOf('<all_urls>') === -1)
|
|
) {
|
|
if ( urls.indexOf('ws://*/*') === -1 ) {
|
|
urls.push('ws://*/*');
|
|
}
|
|
if ( urls.indexOf('wss://*/*') === -1 ) {
|
|
urls.push('wss://*/*');
|
|
}
|
|
}
|
|
return { types, urls };
|
|
}
|
|
denormalizeTypes(types) {
|
|
return types;
|
|
}
|
|
canonicalNameFromHostname(/* hn */) {
|
|
}
|
|
addListener(which, clientListener, filters, options) {
|
|
const actualFilters = this.denormalizeFilters(filters);
|
|
const actualListener = this.makeNewListenerProxy(clientListener);
|
|
browser.webRequest[which].addListener(
|
|
actualListener,
|
|
actualFilters,
|
|
options
|
|
);
|
|
}
|
|
onBeforeSuspendableRequest(details) {
|
|
if ( this.suspendableListener !== undefined ) {
|
|
return this.suspendableListener(details);
|
|
}
|
|
this.onUnprocessedRequest(details);
|
|
}
|
|
setSuspendableListener(listener) {
|
|
for ( const [ tabId, requests ] of this.unprocessedTabs ) {
|
|
let i = requests.length;
|
|
while ( i-- ) {
|
|
const r = listener(requests[i]);
|
|
if ( r === undefined || r.cancel !== true ) {
|
|
requests.splice(i, 1);
|
|
}
|
|
}
|
|
if ( requests.length !== 0 ) { continue; }
|
|
this.unprocessedTabs.delete(tabId);
|
|
}
|
|
if ( this.unprocessedTabs.size !== 0 ) {
|
|
this.deferredSuspendableListener = listener;
|
|
listener = details => {
|
|
const { tabId, type } = details;
|
|
if ( type === 'main_frame' && this.unprocessedTabs.has(tabId) ) {
|
|
if ( this.removeUnprocessedRequest(tabId) ) {
|
|
return this.suspendableListener(details);
|
|
}
|
|
}
|
|
return this.deferredSuspendableListener(details);
|
|
};
|
|
}
|
|
this.suspendableListener = listener;
|
|
vAPI.setDefaultIcon('', '');
|
|
}
|
|
removeListener(which, clientListener) {
|
|
const actualListener = this.listenerMap.get(clientListener);
|
|
if ( actualListener === undefined ) { return; }
|
|
this.listenerMap.delete(clientListener);
|
|
browser.webRequest[which].removeListener(actualListener);
|
|
}
|
|
makeNewListenerProxy(clientListener) {
|
|
const actualListener = details => {
|
|
this.normalizeDetails(details);
|
|
return clientListener(details);
|
|
};
|
|
this.listenerMap.set(clientListener, actualListener);
|
|
return actualListener;
|
|
}
|
|
handlerBehaviorChanged() {
|
|
browser.webRequest.handlerBehaviorChanged();
|
|
}
|
|
onUnprocessedRequest(details) {
|
|
const { tabId } = details;
|
|
if ( tabId === -1 ) { return; }
|
|
if ( this.unprocessedTabs.size === 0 ) {
|
|
vAPI.setDefaultIcon('-loading', '!');
|
|
}
|
|
let requests = this.unprocessedTabs.get(tabId);
|
|
if ( requests === undefined ) {
|
|
this.unprocessedTabs.set(tabId, (requests = []));
|
|
}
|
|
requests.push(Object.assign({}, details));
|
|
}
|
|
hasUnprocessedRequest(tabId) {
|
|
if ( this.unprocessedTabs.size === 0 ) { return false; }
|
|
if ( tabId === undefined ) { return true; }
|
|
return this.unprocessedTabs.has(tabId);
|
|
}
|
|
removeUnprocessedRequest(tabId) {
|
|
if ( this.deferredSuspendableListener === undefined ) {
|
|
this.unprocessedTabs.clear();
|
|
return true;
|
|
}
|
|
if ( tabId !== undefined ) {
|
|
this.unprocessedTabs.delete(tabId);
|
|
} else {
|
|
this.unprocessedTabs.clear();
|
|
}
|
|
if ( this.unprocessedTabs.size !== 0 ) { return false; }
|
|
this.suspendableListener = this.deferredSuspendableListener;
|
|
this.deferredSuspendableListener = undefined;
|
|
return true;
|
|
}
|
|
suspendOneRequest() {
|
|
}
|
|
unsuspendAllRequests() {
|
|
}
|
|
suspend() {
|
|
this.suspendDepth += 1;
|
|
}
|
|
unsuspend({ all = false, discard = false } = {}) {
|
|
if ( this.suspendDepth === 0 ) { return; }
|
|
if ( all ) {
|
|
this.suspendDepth = 0;
|
|
} else {
|
|
this.suspendDepth -= 1;
|
|
}
|
|
if ( this.suspendDepth !== 0 ) { return; }
|
|
this.unsuspendAllRequests(discard);
|
|
}
|
|
static canSuspend() {
|
|
return false;
|
|
}
|
|
};
|
|
|
|
/******************************************************************************/
|
|
/******************************************************************************/
|
|
|
|
// To be defined by platform-specific code.
|
|
|
|
vAPI.scriptletsInjector = (( ) => {
|
|
self.uBO_scriptletsInjected = '';
|
|
}).toString();
|
|
|
|
/******************************************************************************/
|
|
/******************************************************************************/
|
|
|
|
// https://developer.mozilla.org/en-US/Add-ons/WebExtensions/API/contextMenus#Browser_compatibility
|
|
// Firefox for Android does no support browser.contextMenus.
|
|
|
|
vAPI.contextMenu = webext.menus && {
|
|
_callback: null,
|
|
_hash: '',
|
|
onMustUpdate: function() {},
|
|
setEntries: function(entries, callback) {
|
|
entries = entries || [];
|
|
const hash = entries.map(v => v.id).join();
|
|
if ( hash === this._hash ) { return; }
|
|
this._hash = hash;
|
|
webext.menus.removeAll();
|
|
for ( const entry of entries ) {
|
|
webext.menus.create(JSON.parse(JSON.stringify(entry)));
|
|
}
|
|
const n = entries.length;
|
|
callback = callback || null;
|
|
if ( callback === this._callback ) { return; }
|
|
if ( n !== 0 && callback !== null ) {
|
|
webext.menus.onClicked.addListener(callback);
|
|
this._callback = callback;
|
|
} else if ( n === 0 && this._callback !== null ) {
|
|
webext.menus.onClicked.removeListener(this._callback);
|
|
this._callback = null;
|
|
}
|
|
}
|
|
};
|
|
|
|
/******************************************************************************/
|
|
/******************************************************************************/
|
|
|
|
vAPI.commands = browser.commands;
|
|
|
|
/******************************************************************************/
|
|
/******************************************************************************/
|
|
|
|
// https://github.com/gorhill/uBlock/issues/531
|
|
// Storage area dedicated to admin settings. Read-only.
|
|
|
|
// https://github.com/gorhill/uBlock/commit/43a5ed735b95a575a9339b6e71a1fcb27a99663b#commitcomment-13965030
|
|
// Not all Chromium-based browsers support managed storage. Merely testing or
|
|
// exception handling in this case does NOT work: I don't know why. The
|
|
// extension on Opera ends up in a non-sensical state, whereas vAPI become
|
|
// undefined out of nowhere. So only solution left is to test explicitly for
|
|
// Opera.
|
|
// https://github.com/gorhill/uBlock/issues/900
|
|
// Also, UC Browser: http://www.upsieutoc.com/image/WXuH
|
|
|
|
// https://github.com/uBlockOrigin/uAssets/discussions/16939
|
|
// Use a cached version of admin settings, such that there is no blocking
|
|
// call on `storage.managed`. The side effect is that any changes to admin
|
|
// settings will require an extra extension restart to take effect.
|
|
|
|
vAPI.adminStorage = (( ) => {
|
|
if ( webext.storage.managed instanceof Object === false ) {
|
|
return {
|
|
get: function() {
|
|
return Promise.resolve();
|
|
},
|
|
};
|
|
}
|
|
const cacheManagedStorage = async ( ) => {
|
|
let store;
|
|
try {
|
|
store = await webext.storage.managed.get();
|
|
} catch(ex) {
|
|
}
|
|
vAPI.storage.set({ cachedManagedStorage: store || {} });
|
|
};
|
|
|
|
return {
|
|
get: async function(key) {
|
|
let bin;
|
|
try {
|
|
bin = await vAPI.storage.get('cachedManagedStorage') || {};
|
|
if ( Object.keys(bin).length === 0 ) {
|
|
bin = await webext.storage.managed.get() || {};
|
|
} else {
|
|
bin = bin.cachedManagedStorage;
|
|
}
|
|
} catch(ex) {
|
|
bin = {};
|
|
}
|
|
cacheManagedStorage();
|
|
if ( key === undefined || key === null ) {
|
|
return bin;
|
|
}
|
|
if ( typeof key === 'string' && bin instanceof Object ) {
|
|
return bin[key];
|
|
}
|
|
const out = {};
|
|
if ( Array.isArray(key) ) {
|
|
for ( const k of key ) {
|
|
if ( bin[k] === undefined ) { continue; }
|
|
out[k] = bin[k];
|
|
}
|
|
return out;
|
|
}
|
|
for ( const [ k, v ] of Object.entries(key) ) {
|
|
out[k] = bin[k] !== undefined ? bin[k] : v;
|
|
}
|
|
return out;
|
|
}
|
|
};
|
|
})();
|
|
|
|
/******************************************************************************/
|
|
/******************************************************************************/
|
|
|
|
// A localStorage-like object which should be accessible from the
|
|
// background page or auxiliary pages.
|
|
//
|
|
// https://github.com/uBlockOrigin/uBlock-issues/issues/899
|
|
// Convert into asynchronous access API.
|
|
//
|
|
// Note: vAPI.localStorage should already be defined with the client-side
|
|
// implementation at this point, but we override with the
|
|
// background-side implementation.
|
|
vAPI.localStorage = {
|
|
start: async function() {
|
|
if ( this.cache instanceof Promise ) { return this.cache; }
|
|
if ( this.cache instanceof Object ) { return this.cache; }
|
|
this.cache = vAPI.storage.get('localStorage').then(bin => {
|
|
this.cache = bin && bin.localStorage || {};
|
|
});
|
|
return this.cache;
|
|
},
|
|
clear: function() {
|
|
this.cache = {};
|
|
return vAPI.storage.set({ localStorage: this.cache });
|
|
},
|
|
getItem: function(key) {
|
|
if ( this.cache instanceof Object === false ) {
|
|
console.info(`localStorage.getItem('${key}') not ready`);
|
|
return null;
|
|
}
|
|
const value = this.cache[key];
|
|
return value !== undefined ? value : null;
|
|
},
|
|
getItemAsync: async function(key) {
|
|
await this.start();
|
|
const value = this.cache[key];
|
|
return value !== undefined ? value : null;
|
|
},
|
|
removeItem: async function(key) {
|
|
this.setItem(key);
|
|
},
|
|
setItem: async function(key, value = undefined) {
|
|
await this.start();
|
|
if ( value === this.cache[key] ) { return; }
|
|
this.cache[key] = value;
|
|
return vAPI.storage.set({ localStorage: this.cache });
|
|
},
|
|
cache: undefined,
|
|
};
|
|
|
|
vAPI.localStorage.start();
|
|
|
|
/******************************************************************************/
|
|
/******************************************************************************/
|
|
|
|
// https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API/storage/sync
|
|
|
|
vAPI.cloud = (( ) => {
|
|
// Not all platforms support `webext.storage.sync`.
|
|
if ( webext.storage.sync instanceof Object === false ) { return; }
|
|
|
|
// Currently, only Chromium supports the following constants -- these
|
|
// values will be assumed for platforms which do not define them.
|
|
// https://developer.mozilla.org/en-US/Add-ons/WebExtensions/API/storage/sync
|
|
// > You can store up to 100KB of data using this API
|
|
const MAX_ITEMS =
|
|
webext.storage.sync.MAX_ITEMS || 512;
|
|
const QUOTA_BYTES =
|
|
webext.storage.sync.QUOTA_BYTES || 102400;
|
|
const QUOTA_BYTES_PER_ITEM =
|
|
webext.storage.sync.QUOTA_BYTES_PER_ITEM || 8192;
|
|
|
|
const chunkCountPerFetch = 16; // Must be a power of 2
|
|
const maxChunkCountPerItem = Math.floor(MAX_ITEMS * 0.75) & ~(chunkCountPerFetch - 1);
|
|
|
|
// https://github.com/gorhill/uBlock/issues/3006
|
|
// For Firefox, we will use a lower ratio to allow for more overhead for
|
|
// the infrastructure. Unfortunately this leads to less usable space for
|
|
// actual data, but all of this is provided for free by browser vendors,
|
|
// so we need to accept and deal with these limitations.
|
|
const evalMaxChunkSize = function() {
|
|
return Math.floor(
|
|
QUOTA_BYTES_PER_ITEM *
|
|
(vAPI.webextFlavor.soup.has('firefox') ? 0.6 : 0.75)
|
|
);
|
|
};
|
|
|
|
let maxChunkSize = evalMaxChunkSize();
|
|
|
|
// The real actual webextFlavor value may not be set in stone, so listen
|
|
// for possible future changes.
|
|
window.addEventListener('webextFlavor', function() {
|
|
maxChunkSize = evalMaxChunkSize();
|
|
}, { once: true });
|
|
|
|
const options = {
|
|
defaultDeviceName: window.navigator.platform,
|
|
deviceName: undefined,
|
|
};
|
|
|
|
vAPI.localStorage.getItemAsync('deviceName').then(value => {
|
|
options.deviceName = value;
|
|
});
|
|
|
|
// This is used to find out a rough count of how many chunks exists:
|
|
// We "poll" at specific index in order to get a rough idea of how
|
|
// large is the stored string.
|
|
// This allows reading a single item with only 2 sync operations -- a
|
|
// good thing given chrome.storage.sync.MAX_WRITE_OPERATIONS_PER_MINUTE
|
|
// and chrome.storage.sync.MAX_WRITE_OPERATIONS_PER_HOUR.
|
|
|
|
const getCoarseChunkCount = async function(datakey) {
|
|
const keys = {};
|
|
for ( let i = 0; i < maxChunkCountPerItem; i += 16 ) {
|
|
keys[datakey + i.toString()] = '';
|
|
}
|
|
let bin;
|
|
try {
|
|
bin = await webext.storage.sync.get(keys);
|
|
} catch (reason) {
|
|
return String(reason);
|
|
}
|
|
let chunkCount = 0;
|
|
for ( let i = 0; i < maxChunkCountPerItem; i += 16 ) {
|
|
if ( bin[datakey + i.toString()] === '' ) { break; }
|
|
chunkCount = i + 16;
|
|
}
|
|
return chunkCount;
|
|
};
|
|
|
|
const deleteChunks = async function(datakey, start) {
|
|
const keys = [];
|
|
|
|
const n = await getCoarseChunkCount(datakey);
|
|
for ( let i = start; i < n; i++ ) {
|
|
keys.push(datakey + i.toString());
|
|
}
|
|
if ( keys.length !== 0 ) {
|
|
webext.storage.sync.remove(keys);
|
|
}
|
|
};
|
|
|
|
const push = async function(details) {
|
|
const { datakey, data, encode } = details;
|
|
if ( data === undefined || typeof data === 'string' && data === '' ) {
|
|
return deleteChunks(datakey, 0);
|
|
}
|
|
const item = {
|
|
source: options.deviceName || options.defaultDeviceName,
|
|
tstamp: Date.now(),
|
|
data,
|
|
};
|
|
const encoded = encode instanceof Function
|
|
? await encode(item)
|
|
: JSON.stringify(item);
|
|
|
|
// Chunkify taking into account QUOTA_BYTES_PER_ITEM:
|
|
// https://developer.chrome.com/extensions/storage#property-sync
|
|
// "The maximum size (in bytes) of each individual item in sync
|
|
// "storage, as measured by the JSON stringification of its value
|
|
// "plus its key length."
|
|
const bin = {};
|
|
const chunkCount = Math.ceil(encoded.length / maxChunkSize);
|
|
for ( let i = 0; i < chunkCount; i++ ) {
|
|
bin[datakey + i.toString()]
|
|
= encoded.substr(i * maxChunkSize, maxChunkSize);
|
|
}
|
|
bin[datakey + chunkCount.toString()] = ''; // Sentinel
|
|
|
|
// Remove potentially unused trailing chunks before storing the data,
|
|
// this will free storage space which could otherwise cause the push
|
|
// operation to fail.
|
|
try {
|
|
await deleteChunks(datakey, chunkCount + 1);
|
|
} catch (reason) {
|
|
}
|
|
|
|
// Push the data to browser-provided cloud storage.
|
|
try {
|
|
await webext.storage.sync.set(bin);
|
|
} catch (reason) {
|
|
return String(reason);
|
|
}
|
|
};
|
|
|
|
const pull = async function(details) {
|
|
const { datakey, decode } = details;
|
|
|
|
const result = await getCoarseChunkCount(datakey);
|
|
if ( typeof result !== 'number' ) {
|
|
return result;
|
|
}
|
|
const chunkKeys = {};
|
|
for ( let i = 0; i < result; i++ ) {
|
|
chunkKeys[datakey + i.toString()] = '';
|
|
}
|
|
|
|
let bin;
|
|
try {
|
|
bin = await webext.storage.sync.get(chunkKeys);
|
|
} catch (reason) {
|
|
return String(reason);
|
|
}
|
|
|
|
// Assemble chunks into a single string.
|
|
// https://www.reddit.com/r/uMatrix/comments/8lc9ia/my_rules_tab_hangs_with_cloud_storage_support/
|
|
// Explicit sentinel is not necessarily present: this can
|
|
// happen when the number of chunks is a multiple of
|
|
// chunkCountPerFetch. Hence why we must also test against
|
|
// undefined.
|
|
let encoded = [];
|
|
let i = 0;
|
|
for (;;) {
|
|
const slice = bin[datakey + i.toString()];
|
|
if ( slice === '' || slice === undefined ) { break; }
|
|
encoded.push(slice);
|
|
i += 1;
|
|
}
|
|
encoded = encoded.join('');
|
|
|
|
let entry = null;
|
|
try {
|
|
if ( decode instanceof Function ) {
|
|
entry = await decode(encoded) || null;
|
|
}
|
|
if ( typeof entry === 'string' ) {
|
|
entry = JSON.parse(entry);
|
|
}
|
|
} catch(_) {
|
|
}
|
|
return entry;
|
|
};
|
|
|
|
const used = async function(datakey) {
|
|
if ( webext.storage.sync.getBytesInUse instanceof Function === false ) {
|
|
return;
|
|
}
|
|
const coarseCount = await getCoarseChunkCount(datakey);
|
|
if ( typeof coarseCount !== 'number' ) { return; }
|
|
const keys = [];
|
|
for ( let i = 0; i < coarseCount; i++ ) {
|
|
keys.push(`${datakey}${i}`);
|
|
}
|
|
let results;
|
|
try {
|
|
results = await Promise.all([
|
|
webext.storage.sync.getBytesInUse(keys),
|
|
webext.storage.sync.getBytesInUse(null),
|
|
]);
|
|
} catch(ex) {
|
|
}
|
|
if ( Array.isArray(results) === false ) { return; }
|
|
return { used: results[0], total: results[1], max: QUOTA_BYTES };
|
|
};
|
|
|
|
const getOptions = function(callback) {
|
|
if ( typeof callback !== 'function' ) { return; }
|
|
callback(options);
|
|
};
|
|
|
|
const setOptions = function(details, callback) {
|
|
if ( typeof details !== 'object' || details === null ) { return; }
|
|
|
|
if ( typeof details.deviceName === 'string' ) {
|
|
vAPI.localStorage.setItem('deviceName', details.deviceName);
|
|
options.deviceName = details.deviceName;
|
|
}
|
|
|
|
getOptions(callback);
|
|
};
|
|
|
|
return { push, pull, used, getOptions, setOptions };
|
|
})();
|
|
|
|
/******************************************************************************/
|
|
/******************************************************************************/
|
|
|
|
vAPI.alarms = {
|
|
create(...args) {
|
|
webext.alarms.create(...args);
|
|
},
|
|
createIfNotPresent(name, ...args) {
|
|
webext.alarms.get(name).then(details => {
|
|
if ( details !== undefined ) { return; }
|
|
webext.alarms.create(name, ...args);
|
|
});
|
|
},
|
|
async clear(...args) {
|
|
return webext.alarms.clear(...args);
|
|
},
|
|
onAlarm: {
|
|
addListener(...args) {
|
|
webext.alarms.onAlarm.addListener(...args);
|
|
},
|
|
},
|
|
};
|
|
|
|
/******************************************************************************/
|