mirror of
https://github.com/gorhill/uBlock.git
synced 2024-11-17 16:02:33 +01:00
06756baed9
- Generate imageData according to existing path information
- Pass a copy as argument (see 06768dcadb)
1406 lines
49 KiB
JavaScript
1406 lines
49 KiB
JavaScript
/*******************************************************************************
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uBlock Origin - a browser extension to block requests.
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Copyright (C) 2014-2018 The uBlock Origin authors
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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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'use strict';
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/******************************************************************************/
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(function() {
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/******************************************************************************/
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/******************************************************************************/
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var chrome = self.chrome;
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var manifest = chrome.runtime.getManifest();
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vAPI.cantWebsocket =
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chrome.webRequest.ResourceType instanceof Object === false ||
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chrome.webRequest.ResourceType.WEBSOCKET !== 'websocket';
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vAPI.lastError = function() {
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return chrome.runtime.lastError;
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};
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// https://github.com/gorhill/uBlock/issues/875
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// https://code.google.com/p/chromium/issues/detail?id=410868#c8
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// Must not leave `lastError` unchecked.
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vAPI.resetLastError = function() {
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void chrome.runtime.lastError;
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};
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vAPI.supportsUserStylesheets = vAPI.webextFlavor.soup.has('user_stylesheet');
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// The real actual webextFlavor value may not be set in stone, so listen
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// for possible future changes.
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window.addEventListener('webextFlavor', function() {
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vAPI.supportsUserStylesheets =
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vAPI.webextFlavor.soup.has('user_stylesheet');
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}, { once: true });
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vAPI.insertCSS = function(tabId, details) {
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return chrome.tabs.insertCSS(tabId, details, vAPI.resetLastError);
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};
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var noopFunc = function(){};
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/******************************************************************************/
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vAPI.app = (function() {
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let version = manifest.version;
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let match = /(\d+\.\d+\.\d+)(?:\.(\d+))?/.exec(version);
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if ( match && match[2] ) {
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let 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 {
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name: manifest.name.replace(/ dev\w+ build/, ''),
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version: version
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};
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})();
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/******************************************************************************/
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vAPI.app.restart = function() {
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chrome.runtime.reload();
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};
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/******************************************************************************/
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/******************************************************************************/
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// chrome.storage.local.get(null, function(bin){ console.debug('%o', bin); });
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vAPI.storage = chrome.storage.local;
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vAPI.cacheStorage = chrome.storage.local;
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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.chrome.com/extensions/privacy#property-network
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// 2015-08-12: Wrapped Chrome API in try-catch statements. I had a fluke
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// event in which it appeared Chrome 46 decided to restart uBlock (for
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// unknown reasons) and again for unknown reasons the browser acted as if
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// uBlock did not declare the `privacy` permission in its manifest, putting
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// uBlock in a bad, non-functional state -- because call to `chrome.privacy`
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// API threw an exception.
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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 = (function() {
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// Not all platforms support `chrome.privacy`.
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if ( chrome.privacy instanceof Object === false ) {
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return;
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}
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return {
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// Whether the WebRTC-related privacy API is crashy is an open question
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// only for Chromium proper (because it can be compiled without the
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// WebRTC feature): hence avoid overhead of the evaluation (which uses
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// an iframe) for platforms where it's a non-issue.
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// https://github.com/uBlockOrigin/uBlock-issues/issues/9
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// Some Chromium builds are made to look like a Chrome build.
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webRTCSupported: (function() {
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if ( vAPI.webextFlavor.soup.has('chromium') === false ) {
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return true;
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}
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})(),
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// Calling with `true` means IP address leak is not prevented.
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// https://github.com/gorhill/uBlock/issues/533
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// We must first check wether this Chromium-based browser was compiled
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// with WebRTC support. To do this, we use an iframe, this way the
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// empty RTCPeerConnection object we create to test for support will
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// be properly garbage collected. This prevents issues such as
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// a computer unable to enter into sleep mode, as reported in the
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// Chrome store:
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// https://github.com/gorhill/uBlock/issues/533#issuecomment-167931681
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setWebrtcIPAddress: function(setting) {
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// We don't know yet whether this browser supports WebRTC: find out.
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if ( this.webRTCSupported === undefined ) {
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// If asked to leave WebRTC setting alone at this point in the
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// code, this means we never grabbed the setting in the first
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// place.
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if ( setting ) { return; }
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this.webRTCSupported = { setting: setting };
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var iframe = document.createElement('iframe');
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var me = this;
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var messageHandler = function(ev) {
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if ( ev.origin !== self.location.origin ) {
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return;
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}
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window.removeEventListener('message', messageHandler);
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var setting = me.webRTCSupported.setting;
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me.webRTCSupported = ev.data === 'webRTCSupported';
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me.setWebrtcIPAddress(setting);
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iframe.parentNode.removeChild(iframe);
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iframe = null;
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};
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window.addEventListener('message', messageHandler);
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iframe.src = 'is-webrtc-supported.html';
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document.body.appendChild(iframe);
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return;
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}
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// We are waiting for a response from our iframe. This makes the code
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// safe to re-entrancy.
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if ( typeof this.webRTCSupported === 'object' ) {
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this.webRTCSupported.setting = setting;
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return;
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}
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// https://github.com/gorhill/uBlock/issues/533
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// WebRTC not supported: `webRTCMultipleRoutesEnabled` can NOT be
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// safely accessed. Accessing the property will cause full browser
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// crash.
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if ( this.webRTCSupported !== true ) {
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return;
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}
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var cp = chrome.privacy,
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cpn = cp.network;
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// Older version of Chromium do not support this setting, and is
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// marked as "deprecated" since Chromium 48.
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if ( typeof cpn.webRTCMultipleRoutesEnabled === 'object' ) {
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try {
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if ( setting ) {
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cpn.webRTCMultipleRoutesEnabled.clear({
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scope: 'regular'
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}, vAPI.resetLastError);
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} else {
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cpn.webRTCMultipleRoutesEnabled.set({
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value: false,
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scope: 'regular'
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}, vAPI.resetLastError);
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}
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} catch(ex) {
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console.error(ex);
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}
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}
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// This setting became available in Chromium 48.
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if ( typeof cpn.webRTCIPHandlingPolicy === 'object' ) {
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try {
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if ( setting ) {
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cpn.webRTCIPHandlingPolicy.clear({
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scope: 'regular'
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}, vAPI.resetLastError);
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} else {
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// https://github.com/uBlockOrigin/uAssets/issues/333#issuecomment-289426678
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// - Leverage virtuous side-effect of strictest setting.
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cpn.webRTCIPHandlingPolicy.set({
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value: 'disable_non_proxied_udp',
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scope: 'regular'
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}, vAPI.resetLastError);
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}
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} catch(ex) {
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console.error(ex);
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}
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}
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},
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set: function(details) {
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for ( var setting in details ) {
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if ( details.hasOwnProperty(setting) === false ) {
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continue;
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}
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switch ( setting ) {
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case 'prefetching':
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try {
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if ( !!details[setting] ) {
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chrome.privacy.network.networkPredictionEnabled.clear({
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scope: 'regular'
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}, vAPI.resetLastError);
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} else {
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chrome.privacy.network.networkPredictionEnabled.set({
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value: false,
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scope: 'regular'
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}, vAPI.resetLastError);
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}
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} catch(ex) {
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console.error(ex);
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}
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break;
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case 'hyperlinkAuditing':
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try {
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if ( !!details[setting] ) {
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chrome.privacy.websites.hyperlinkAuditingEnabled.clear({
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scope: 'regular'
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}, vAPI.resetLastError);
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} else {
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chrome.privacy.websites.hyperlinkAuditingEnabled.set({
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value: false,
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scope: 'regular'
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}, vAPI.resetLastError);
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}
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} catch(ex) {
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console.error(ex);
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}
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break;
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case 'webrtcIPAddress':
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this.setWebrtcIPAddress(!!details[setting]);
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break;
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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.tabs = {};
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/******************************************************************************/
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// https://github.com/gorhill/uBlock/issues/3546
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// Added a new flavor of behind-the-scene tab id: vAPI.anyTabId.
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// vAPI.anyTabId will be used for network requests which can be filtered,
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// because they comes with enough contextual information. It's just not
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// possible to pinpoint exactly from which tab it comes from. For example,
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// with Firefox/webext, the `documentUrl` property is available for every
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// network requests.
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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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vAPI.anyTabId = -2; // one of the existing tab
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/******************************************************************************/
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// To remove when tabId-as-integer has been tested enough.
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var toChromiumTabId = function(tabId) {
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return typeof tabId === 'number' && !isNaN(tabId) && tabId > 0 ?
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tabId :
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0;
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};
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/******************************************************************************/
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vAPI.tabs.registerListeners = function() {
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var onNavigationClient = this.onNavigation || noopFunc;
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var onUpdatedClient = this.onUpdated || noopFunc;
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// https://developer.chrome.com/extensions/webNavigation
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// [onCreatedNavigationTarget ->]
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// onBeforeNavigate ->
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// onCommitted ->
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// onDOMContentLoaded ->
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// onCompleted
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// The chrome.webRequest.onBeforeRequest() won't be called for everything
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// else than `http`/`https`. Thus, in such case, we will bind the tab as
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// early as possible in order to increase the likelihood of a context
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// properly setup if network requests are fired from within the tab.
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// Example: Chromium + case #6 at
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// http://raymondhill.net/ublock/popup.html
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var reGoodForWebRequestAPI = /^https?:\/\//;
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// https://forums.lanik.us/viewtopic.php?f=62&t=32826
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// Chromium-based browsers: sanitize target URL. I've seen data: URI with
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// newline characters in standard fields, possibly as a way of evading
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// filters. As per spec, there should be no whitespaces in a data: URI's
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// standard fields.
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var sanitizeURL = function(url) {
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if ( url.startsWith('data:') === false ) { return url; }
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var pos = url.indexOf(',');
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if ( pos === -1 ) { return url; }
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var s = url.slice(0, pos);
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if ( s.search(/\s/) === -1 ) { return url; }
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return s.replace(/\s+/, '') + url.slice(pos);
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};
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var onCreatedNavigationTarget = function(details) {
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if ( typeof details.url !== 'string' ) {
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details.url = '';
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}
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if ( reGoodForWebRequestAPI.test(details.url) === false ) {
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details.frameId = 0;
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details.url = sanitizeURL(details.url);
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onNavigationClient(details);
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}
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if ( typeof vAPI.tabs.onPopupCreated === 'function' ) {
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vAPI.tabs.onPopupCreated(
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details.tabId,
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details.sourceTabId
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);
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}
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};
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var onCommitted = function(details) {
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details.url = sanitizeURL(details.url);
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onNavigationClient(details);
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};
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var onActivated = function(details) {
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if ( vAPI.contextMenu instanceof Object ) {
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vAPI.contextMenu.onMustUpdate(details.tabId);
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}
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};
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// https://github.com/gorhill/uBlock/issues/3073
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// - Fall back to `tab.url` when `changeInfo.url` is not set.
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var onUpdated = function(tabId, changeInfo, tab) {
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if ( typeof changeInfo.url !== 'string' ) {
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changeInfo.url = tab && tab.url;
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}
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if ( changeInfo.url ) {
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changeInfo.url = sanitizeURL(changeInfo.url);
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}
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onUpdatedClient(tabId, changeInfo, tab);
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};
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chrome.webNavigation.onCommitted.addListener(onCommitted);
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// Not supported on Firefox WebExtensions yet.
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if ( chrome.webNavigation.onCreatedNavigationTarget instanceof Object ) {
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chrome.webNavigation.onCreatedNavigationTarget.addListener(onCreatedNavigationTarget);
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}
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chrome.tabs.onActivated.addListener(onActivated);
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chrome.tabs.onUpdated.addListener(onUpdated);
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if ( typeof this.onClosed === 'function' ) {
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chrome.tabs.onRemoved.addListener(this.onClosed);
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}
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};
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/******************************************************************************/
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// Caller must be prepared to deal with nil tab argument.
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// https://code.google.com/p/chromium/issues/detail?id=410868#c8
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vAPI.tabs.get = function(tabId, callback) {
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if ( tabId === null ) {
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chrome.tabs.query(
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{ active: true, currentWindow: true },
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function(tabs) {
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void chrome.runtime.lastError;
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callback(
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Array.isArray(tabs) && tabs.length !== 0 ? tabs[0] : null
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);
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}
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);
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return;
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}
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tabId = toChromiumTabId(tabId);
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if ( tabId === 0 ) {
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callback(null);
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return;
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}
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chrome.tabs.get(tabId, function(tab) {
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void chrome.runtime.lastError;
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callback(tab);
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});
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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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// 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 after index
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// active: false, // opens the tab in background - true and undefined: foreground
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// select: true, // if a tab is already opened with that url, then select 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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vAPI.tabs.open = function(details) {
|
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var 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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// dealing with Chrome's asynchronous API
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|
var wrapper = function() {
|
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if ( details.active === undefined ) {
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details.active = true;
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}
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|
|
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var subWrapper = function() {
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var _details = {
|
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url: targetURL,
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active: !!details.active
|
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};
|
|
|
|
// Opening a tab from incognito window won't focus the window
|
|
// in which the tab was opened
|
|
var focusWindow = function(tab) {
|
|
if ( tab.active ) {
|
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chrome.windows.update(tab.windowId, { focused: true });
|
|
}
|
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};
|
|
|
|
if ( !details.tabId ) {
|
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if ( details.index !== undefined ) {
|
|
_details.index = details.index;
|
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}
|
|
|
|
chrome.tabs.create(_details, focusWindow);
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|
return;
|
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}
|
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|
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// update doesn't accept index, must use move
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|
chrome.tabs.update(toChromiumTabId(details.tabId), _details, function(tab) {
|
|
// if the tab doesn't exist
|
|
if ( vAPI.lastError() ) {
|
|
chrome.tabs.create(_details, focusWindow);
|
|
} else if ( details.index !== undefined ) {
|
|
chrome.tabs.move(tab.id, {index: details.index});
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|
}
|
|
});
|
|
};
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|
|
// Open in a standalone window
|
|
if ( details.popup === true ) {
|
|
chrome.windows.create({ url: details.url, type: 'popup' });
|
|
return;
|
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}
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|
|
if ( details.index !== -1 ) {
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subWrapper();
|
|
return;
|
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}
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|
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vAPI.tabs.get(null, function(tab) {
|
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if ( tab ) {
|
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details.index = tab.index + 1;
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} else {
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delete details.index;
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}
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subWrapper();
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});
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};
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|
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if ( !details.select ) {
|
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wrapper();
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return;
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}
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|
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// https://github.com/gorhill/uBlock/issues/3053#issuecomment-332276818
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// - Do not try to lookup uBO's own pages with FF 55 or less.
|
|
if (
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vAPI.webextFlavor.soup.has('firefox') &&
|
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vAPI.webextFlavor.major < 56
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) {
|
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wrapper();
|
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return;
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}
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|
|
// https://developer.chrome.com/extensions/tabs#method-query
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|
// "Note that fragment identifiers are not matched."
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|
// It's a lie, fragment identifiers ARE matched. So we need to remove the
|
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// fragment.
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|
var pos = targetURL.indexOf('#'),
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|
targetURLWithoutHash = pos === -1 ? targetURL : targetURL.slice(0, pos);
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|
|
chrome.tabs.query({ url: targetURLWithoutHash }, function(tabs) {
|
|
void chrome.runtime.lastError;
|
|
var tab = Array.isArray(tabs) && tabs[0];
|
|
if ( !tab ) {
|
|
wrapper();
|
|
return;
|
|
}
|
|
var _details = {
|
|
active: true,
|
|
url: undefined
|
|
};
|
|
if ( targetURL !== tab.url ) {
|
|
_details.url = targetURL;
|
|
}
|
|
chrome.tabs.update(tab.id, _details, function(tab) {
|
|
chrome.windows.update(tab.windowId, { focused: true });
|
|
});
|
|
});
|
|
};
|
|
|
|
/******************************************************************************/
|
|
|
|
// Replace the URL of a tab. Noop if the tab does not exist.
|
|
|
|
vAPI.tabs.replace = function(tabId, url) {
|
|
tabId = toChromiumTabId(tabId);
|
|
if ( tabId === 0 ) { return; }
|
|
|
|
var targetURL = url;
|
|
|
|
// extension pages
|
|
if ( /^[\w-]{2,}:/.test(targetURL) !== true ) {
|
|
targetURL = vAPI.getURL(targetURL);
|
|
}
|
|
|
|
chrome.tabs.update(tabId, { url: targetURL }, vAPI.resetLastError);
|
|
};
|
|
|
|
/******************************************************************************/
|
|
|
|
vAPI.tabs.remove = function(tabId) {
|
|
tabId = toChromiumTabId(tabId);
|
|
if ( tabId === 0 ) { return; }
|
|
|
|
chrome.tabs.remove(tabId, vAPI.resetLastError);
|
|
};
|
|
|
|
/******************************************************************************/
|
|
|
|
vAPI.tabs.reload = function(tabId, bypassCache) {
|
|
tabId = toChromiumTabId(tabId);
|
|
if ( tabId === 0 ) { return; }
|
|
|
|
chrome.tabs.reload(
|
|
tabId,
|
|
{ bypassCache: bypassCache === true },
|
|
vAPI.resetLastError
|
|
);
|
|
};
|
|
|
|
/******************************************************************************/
|
|
|
|
// Select a specific tab.
|
|
|
|
vAPI.tabs.select = function(tabId) {
|
|
tabId = toChromiumTabId(tabId);
|
|
if ( tabId === 0 ) { return; }
|
|
|
|
chrome.tabs.update(tabId, { active: true }, function(tab) {
|
|
void chrome.runtime.lastError;
|
|
if ( !tab ) { return; }
|
|
chrome.windows.update(tab.windowId, { focused: true });
|
|
});
|
|
};
|
|
|
|
/******************************************************************************/
|
|
|
|
vAPI.tabs.injectScript = function(tabId, details, callback) {
|
|
var onScriptExecuted = function() {
|
|
// https://code.google.com/p/chromium/issues/detail?id=410868#c8
|
|
void chrome.runtime.lastError;
|
|
if ( typeof callback === 'function' ) {
|
|
callback();
|
|
}
|
|
};
|
|
if ( tabId ) {
|
|
chrome.tabs.executeScript(toChromiumTabId(tabId), details, onScriptExecuted);
|
|
} else {
|
|
chrome.tabs.executeScript(details, onScriptExecuted);
|
|
}
|
|
};
|
|
|
|
/******************************************************************************/
|
|
/******************************************************************************/
|
|
|
|
// 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.
|
|
|
|
vAPI.setIcon = (function() {
|
|
let browserAction = chrome.browserAction,
|
|
titleTemplate =
|
|
chrome.runtime.getManifest().browser_action.default_title +
|
|
' ({badge})';
|
|
let icons = [
|
|
{
|
|
path: { '16': 'img/icon_16-off.png', '32': 'img/icon_32-off.png' }
|
|
},
|
|
{
|
|
path: { '16': 'img/icon_16.png', '32': 'img/icon_32.png' }
|
|
}
|
|
];
|
|
|
|
(function() {
|
|
if ( browserAction.setIcon === undefined ) { return; }
|
|
|
|
// The global badge background color.
|
|
if ( browserAction.setBadgeBackgroundColor !== undefined ) {
|
|
browserAction.setBadgeBackgroundColor({
|
|
color: [ 0x66, 0x66, 0x66, 0xFF ]
|
|
});
|
|
}
|
|
|
|
// 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; }
|
|
|
|
let imgs = [];
|
|
for ( let i = 0; i < icons.length; i++ ) {
|
|
let path = icons[i].path;
|
|
for ( let key in path ) {
|
|
if ( path.hasOwnProperty(key) === false ) { continue; }
|
|
imgs.push({ i: i, p: key });
|
|
}
|
|
}
|
|
let onLoaded = function() {
|
|
for ( let img of imgs ) {
|
|
if ( img.r.complete === false ) { return; }
|
|
}
|
|
let ctx = document.createElement('canvas').getContext('2d');
|
|
let iconData = [ null, null ];
|
|
for ( let img of imgs ) {
|
|
let 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] = {}; }
|
|
let imgData = ctx.getImageData(0, 0, 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;
|
|
}
|
|
for ( let i = 0; i < iconData.length; i++ ) {
|
|
if ( iconData[i] ) {
|
|
icons[i] = { imageData: iconData[i] };
|
|
}
|
|
}
|
|
};
|
|
for ( let img of imgs ) {
|
|
img.r = new Image();
|
|
img.r.addEventListener('load', onLoaded, { once: true });
|
|
img.r.src = icons[img.i].path[img.p];
|
|
}
|
|
})();
|
|
|
|
var onTabReady = function(tab, state, badge, parts) {
|
|
if ( vAPI.lastError() || !tab ) { return; }
|
|
|
|
if ( browserAction.setIcon !== undefined ) {
|
|
if ( parts === undefined || (parts & 0x01) !== 0 ) {
|
|
browserAction.setIcon(
|
|
Object.assign({ tabId: tab.id }, icons[state])
|
|
);
|
|
}
|
|
browserAction.setBadgeText({ tabId: tab.id, text: badge });
|
|
}
|
|
|
|
if ( browserAction.setTitle !== undefined ) {
|
|
browserAction.setTitle({
|
|
tabId: tab.id,
|
|
title: titleTemplate.replace(
|
|
'{badge}',
|
|
state === 1 ? (badge !== '' ? badge : '0') : 'off'
|
|
)
|
|
});
|
|
}
|
|
};
|
|
|
|
// parts: bit 0 = icon
|
|
// bit 1 = badge
|
|
|
|
return function(tabId, state, badge, parts) {
|
|
tabId = toChromiumTabId(tabId);
|
|
if ( tabId === 0 ) { return; }
|
|
|
|
chrome.tabs.get(tabId, function(tab) {
|
|
onTabReady(tab, state, badge, parts);
|
|
});
|
|
|
|
if ( vAPI.contextMenu instanceof Object ) {
|
|
vAPI.contextMenu.onMustUpdate(tabId);
|
|
}
|
|
};
|
|
})();
|
|
|
|
chrome.browserAction.onClicked.addListener(function(tab) {
|
|
vAPI.tabs.open({
|
|
select: true,
|
|
url: 'popup.html?tabId=' + tab.id + '&responsive=1'
|
|
});
|
|
});
|
|
|
|
/******************************************************************************/
|
|
/******************************************************************************/
|
|
|
|
vAPI.messaging = {
|
|
ports: new Map(),
|
|
listeners: {},
|
|
defaultHandler: null,
|
|
NOOPFUNC: noopFunc,
|
|
UNHANDLED: 'vAPI.messaging.notHandled'
|
|
};
|
|
|
|
/******************************************************************************/
|
|
|
|
vAPI.messaging.listen = function(listenerName, callback) {
|
|
this.listeners[listenerName] = callback;
|
|
};
|
|
|
|
/******************************************************************************/
|
|
|
|
vAPI.messaging.onPortMessage = (function() {
|
|
var messaging = vAPI.messaging;
|
|
|
|
// Use a wrapper to avoid closure and to allow reuse.
|
|
var CallbackWrapper = function(port, request) {
|
|
this.callback = this.proxy.bind(this); // bind once
|
|
this.init(port, request);
|
|
};
|
|
|
|
CallbackWrapper.prototype = {
|
|
init: function(port, request) {
|
|
this.port = port;
|
|
this.request = request;
|
|
return this;
|
|
},
|
|
proxy: function(response) {
|
|
// https://github.com/chrisaljoudi/uBlock/issues/383
|
|
if ( messaging.ports.has(this.port.name) ) {
|
|
this.port.postMessage({
|
|
auxProcessId: this.request.auxProcessId,
|
|
channelName: this.request.channelName,
|
|
msg: response !== undefined ? response : null
|
|
});
|
|
}
|
|
// Mark for reuse
|
|
this.port = this.request = null;
|
|
callbackWrapperJunkyard.push(this);
|
|
}
|
|
};
|
|
|
|
var callbackWrapperJunkyard = [];
|
|
|
|
var callbackWrapperFactory = function(port, request) {
|
|
var wrapper = callbackWrapperJunkyard.pop();
|
|
if ( wrapper ) {
|
|
return wrapper.init(port, request);
|
|
}
|
|
return new CallbackWrapper(port, request);
|
|
};
|
|
|
|
var toFramework = function(request, port, callback) {
|
|
var sender = port && port.sender;
|
|
if ( !sender ) { return; }
|
|
var tabId = sender.tab && sender.tab.id || undefined;
|
|
var msg = request.msg,
|
|
toPort;
|
|
switch ( msg.what ) {
|
|
case 'connectionAccepted':
|
|
case 'connectionRefused':
|
|
toPort = messaging.ports.get(msg.fromToken);
|
|
if ( toPort !== undefined ) {
|
|
msg.tabId = tabId;
|
|
toPort.postMessage(request);
|
|
} else {
|
|
msg.what = 'connectionBroken';
|
|
port.postMessage(request);
|
|
}
|
|
break;
|
|
case 'connectionRequested':
|
|
msg.tabId = tabId;
|
|
for ( toPort of messaging.ports.values() ) {
|
|
toPort.postMessage(request);
|
|
}
|
|
break;
|
|
case 'connectionBroken':
|
|
case 'connectionCheck':
|
|
case 'connectionMessage':
|
|
toPort = messaging.ports.get(
|
|
port.name === msg.fromToken ? msg.toToken : msg.fromToken
|
|
);
|
|
if ( toPort !== undefined ) {
|
|
msg.tabId = tabId;
|
|
toPort.postMessage(request);
|
|
} else {
|
|
msg.what = 'connectionBroken';
|
|
port.postMessage(request);
|
|
}
|
|
break;
|
|
case 'userCSS':
|
|
if ( tabId === undefined ) { break; }
|
|
var details = {
|
|
code: undefined,
|
|
frameId: sender.frameId,
|
|
matchAboutBlank: true
|
|
};
|
|
if ( vAPI.supportsUserStylesheets ) {
|
|
details.cssOrigin = 'user';
|
|
}
|
|
if ( msg.add ) {
|
|
details.runAt = 'document_start';
|
|
}
|
|
var cssText;
|
|
var countdown = 0;
|
|
var countdownHandler = function() {
|
|
void chrome.runtime.lastError;
|
|
countdown -= 1;
|
|
if ( countdown === 0 && typeof callback === 'function' ) {
|
|
callback();
|
|
}
|
|
};
|
|
for ( cssText of msg.add ) {
|
|
countdown += 1;
|
|
details.code = cssText;
|
|
chrome.tabs.insertCSS(tabId, details, countdownHandler);
|
|
}
|
|
if ( typeof chrome.tabs.removeCSS === 'function' ) {
|
|
for ( cssText of msg.remove ) {
|
|
countdown += 1;
|
|
details.code = cssText;
|
|
chrome.tabs.removeCSS(tabId, details, countdownHandler);
|
|
}
|
|
}
|
|
if ( countdown === 0 && typeof callback === 'function' ) {
|
|
callback();
|
|
}
|
|
break;
|
|
}
|
|
};
|
|
|
|
// https://bugzilla.mozilla.org/show_bug.cgi?id=1392067
|
|
// Workaround: manually remove ports matching removed tab.
|
|
chrome.tabs.onRemoved.addListener(function(tabId) {
|
|
for ( var port of messaging.ports.values() ) {
|
|
var tab = port.sender && port.sender.tab;
|
|
if ( !tab ) { continue; }
|
|
if ( tab.id === tabId ) {
|
|
vAPI.messaging.onPortDisconnect(port);
|
|
}
|
|
}
|
|
});
|
|
|
|
return function(request, port) {
|
|
// prepare response
|
|
var callback = this.NOOPFUNC;
|
|
if ( request.auxProcessId !== undefined ) {
|
|
callback = callbackWrapperFactory(port, request).callback;
|
|
}
|
|
|
|
// Content process to main process: framework handler.
|
|
if ( request.channelName === 'vapi' ) {
|
|
toFramework(request, port, callback);
|
|
return;
|
|
}
|
|
|
|
// Auxiliary process to main process: specific handler
|
|
var r = this.UNHANDLED,
|
|
listener = this.listeners[request.channelName];
|
|
if ( typeof listener === 'function' ) {
|
|
r = listener(request.msg, port.sender, callback);
|
|
}
|
|
if ( r !== this.UNHANDLED ) { return; }
|
|
|
|
// Auxiliary process to main process: default handler
|
|
r = this.defaultHandler(request.msg, port.sender, callback);
|
|
if ( r !== this.UNHANDLED ) { return; }
|
|
|
|
// Auxiliary process to main process: no handler
|
|
console.error(
|
|
'vAPI.messaging.onPortMessage > unhandled request: %o',
|
|
request
|
|
);
|
|
|
|
// Need to callback anyways in case caller expected an answer, or
|
|
// else there is a memory leak on caller's side
|
|
callback();
|
|
}.bind(vAPI.messaging);
|
|
})();
|
|
|
|
/******************************************************************************/
|
|
|
|
vAPI.messaging.onPortDisconnect = function(port) {
|
|
port.onDisconnect.removeListener(this.onPortDisconnect);
|
|
port.onMessage.removeListener(this.onPortMessage);
|
|
this.ports.delete(port.name);
|
|
}.bind(vAPI.messaging);
|
|
|
|
/******************************************************************************/
|
|
|
|
vAPI.messaging.onPortConnect = function(port) {
|
|
port.onDisconnect.addListener(this.onPortDisconnect);
|
|
port.onMessage.addListener(this.onPortMessage);
|
|
this.ports.set(port.name, port);
|
|
}.bind(vAPI.messaging);
|
|
|
|
/******************************************************************************/
|
|
|
|
vAPI.messaging.setup = function(defaultHandler) {
|
|
// Already setup?
|
|
if ( this.defaultHandler !== null ) {
|
|
return;
|
|
}
|
|
|
|
if ( typeof defaultHandler !== 'function' ) {
|
|
defaultHandler = function(){ return vAPI.messaging.UNHANDLED; };
|
|
}
|
|
this.defaultHandler = defaultHandler;
|
|
|
|
chrome.runtime.onConnect.addListener(this.onPortConnect);
|
|
};
|
|
|
|
/******************************************************************************/
|
|
|
|
vAPI.messaging.broadcast = function(message) {
|
|
var messageWrapper = {
|
|
broadcast: true,
|
|
msg: message
|
|
};
|
|
for ( var port of this.ports.values() ) {
|
|
port.postMessage(messageWrapper);
|
|
}
|
|
};
|
|
|
|
/******************************************************************************/
|
|
/******************************************************************************/
|
|
|
|
// 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
|
|
|
|
(function() {
|
|
vAPI.warSecret =
|
|
Math.floor(Math.random() * 982451653 + 982451653).toString(36) +
|
|
Math.floor(Math.random() * 982451653 + 982451653).toString(36);
|
|
|
|
var key = 'secret=' + vAPI.warSecret;
|
|
var root = vAPI.getURL('/');
|
|
var guard = function(details) {
|
|
if ( details.url.indexOf(key) === -1 ) {
|
|
return { redirectUrl: root };
|
|
}
|
|
};
|
|
|
|
chrome.webRequest.onBeforeRequest.addListener(
|
|
guard,
|
|
{
|
|
urls: [ root + 'web_accessible_resources/*' ]
|
|
},
|
|
[ 'blocking' ]
|
|
);
|
|
})();
|
|
|
|
/******************************************************************************/
|
|
/******************************************************************************/
|
|
|
|
// https://developer.mozilla.org/en-US/Add-ons/WebExtensions/API/contextMenus#Browser_compatibility
|
|
// Firefox for Android does no support browser.contextMenus.
|
|
|
|
vAPI.contextMenu = chrome.contextMenus && {
|
|
_callback: null,
|
|
_entries: [],
|
|
_createEntry: function(entry) {
|
|
chrome.contextMenus.create(
|
|
JSON.parse(JSON.stringify(entry)),
|
|
vAPI.resetLastError
|
|
);
|
|
},
|
|
onMustUpdate: function() {},
|
|
setEntries: function(entries, callback) {
|
|
entries = entries || [];
|
|
var n = Math.max(this._entries.length, entries.length),
|
|
oldEntryId, newEntry;
|
|
for ( var i = 0; i < n; i++ ) {
|
|
oldEntryId = this._entries[i];
|
|
newEntry = entries[i];
|
|
if ( oldEntryId && newEntry ) {
|
|
if ( newEntry.id !== oldEntryId ) {
|
|
chrome.contextMenus.remove(oldEntryId);
|
|
this._createEntry(newEntry);
|
|
this._entries[i] = newEntry.id;
|
|
}
|
|
} else if ( oldEntryId && !newEntry ) {
|
|
chrome.contextMenus.remove(oldEntryId);
|
|
} else if ( !oldEntryId && newEntry ) {
|
|
this._createEntry(newEntry);
|
|
this._entries[i] = newEntry.id;
|
|
}
|
|
}
|
|
n = this._entries.length = entries.length;
|
|
callback = callback || null;
|
|
if ( callback === this._callback ) {
|
|
return;
|
|
}
|
|
if ( n !== 0 && callback !== null ) {
|
|
chrome.contextMenus.onClicked.addListener(callback);
|
|
this._callback = callback;
|
|
} else if ( n === 0 && this._callback !== null ) {
|
|
chrome.contextMenus.onClicked.removeListener(this._callback);
|
|
this._callback = null;
|
|
}
|
|
}
|
|
};
|
|
|
|
/******************************************************************************/
|
|
/******************************************************************************/
|
|
|
|
vAPI.commands = chrome.commands;
|
|
|
|
/******************************************************************************/
|
|
/******************************************************************************/
|
|
|
|
// This is called only once, when everything has been loaded in memory after
|
|
// the extension was launched. It can be used to inject content scripts
|
|
// in already opened web pages, to remove whatever nuisance could make it to
|
|
// the web pages before uBlock was ready.
|
|
|
|
vAPI.onLoadAllCompleted = function() {
|
|
// http://code.google.com/p/chromium/issues/detail?id=410868#c11
|
|
// Need to be sure to access `vAPI.lastError()` to prevent
|
|
// spurious warnings in the console.
|
|
var onScriptInjected = function() {
|
|
vAPI.lastError();
|
|
};
|
|
var scriptStart = function(tabId) {
|
|
var manifest = chrome.runtime.getManifest();
|
|
if ( manifest instanceof Object === false ) { return; }
|
|
for ( var contentScript of manifest.content_scripts ) {
|
|
for ( var file of contentScript.js ) {
|
|
vAPI.tabs.injectScript(tabId, {
|
|
file: file,
|
|
allFrames: contentScript.all_frames,
|
|
runAt: contentScript.run_at
|
|
}, onScriptInjected);
|
|
}
|
|
}
|
|
};
|
|
var bindToTabs = function(tabs) {
|
|
var µb = µBlock;
|
|
var i = tabs.length, tab;
|
|
while ( i-- ) {
|
|
tab = tabs[i];
|
|
µb.tabContextManager.commit(tab.id, tab.url);
|
|
µb.bindTabToPageStats(tab.id);
|
|
// https://github.com/chrisaljoudi/uBlock/issues/129
|
|
if ( /^https?:\/\//.test(tab.url) ) {
|
|
scriptStart(tab.id);
|
|
}
|
|
}
|
|
};
|
|
|
|
chrome.tabs.query({ url: '<all_urls>' }, bindToTabs);
|
|
};
|
|
|
|
/******************************************************************************/
|
|
/******************************************************************************/
|
|
|
|
vAPI.punycodeHostname = function(hostname) {
|
|
return hostname;
|
|
};
|
|
|
|
vAPI.punycodeURL = function(url) {
|
|
return url;
|
|
};
|
|
|
|
/******************************************************************************/
|
|
/******************************************************************************/
|
|
|
|
// 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
|
|
|
|
vAPI.adminStorage = chrome.storage.managed && {
|
|
getItem: function(key, callback) {
|
|
var onRead = function(store) {
|
|
var data;
|
|
if (
|
|
!chrome.runtime.lastError &&
|
|
typeof store === 'object' &&
|
|
store !== null
|
|
) {
|
|
data = store[key];
|
|
}
|
|
callback(data);
|
|
};
|
|
try {
|
|
chrome.storage.managed.get(key, onRead);
|
|
} catch (ex) {
|
|
callback();
|
|
}
|
|
}
|
|
};
|
|
|
|
/******************************************************************************/
|
|
/******************************************************************************/
|
|
|
|
vAPI.cloud = (function() {
|
|
// Not all platforms support `chrome.storage.sync`.
|
|
if ( chrome.storage.sync instanceof Object === false ) {
|
|
return;
|
|
}
|
|
|
|
var chunkCountPerFetch = 16; // Must be a power of 2
|
|
|
|
// Mind chrome.storage.sync.MAX_ITEMS (512 at time of writing)
|
|
var maxChunkCountPerItem = Math.floor(512 * 0.75) & ~(chunkCountPerFetch - 1);
|
|
|
|
// Mind chrome.storage.sync.QUOTA_BYTES_PER_ITEM (8192 at time of writing)
|
|
// 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.
|
|
var evalMaxChunkSize = function() {
|
|
return Math.floor(
|
|
(chrome.storage.sync.QUOTA_BYTES_PER_ITEM || 8192) *
|
|
(vAPI.webextFlavor.soup.has('firefox') ? 0.6 : 0.75)
|
|
);
|
|
};
|
|
|
|
var 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 });
|
|
|
|
// Mind chrome.storage.sync.QUOTA_BYTES (128 kB at time of writing)
|
|
// Firefox:
|
|
// https://developer.mozilla.org/en-US/Add-ons/WebExtensions/API/storage/sync
|
|
// > You can store up to 100KB of data using this API/
|
|
var maxStorageSize = chrome.storage.sync.QUOTA_BYTES || 102400;
|
|
|
|
var options = {
|
|
defaultDeviceName: window.navigator.platform,
|
|
deviceName: vAPI.localStorage.getItem('deviceName') || ''
|
|
};
|
|
|
|
// 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.
|
|
|
|
var getCoarseChunkCount = function(dataKey, callback) {
|
|
var bin = {};
|
|
for ( var i = 0; i < maxChunkCountPerItem; i += 16 ) {
|
|
bin[dataKey + i.toString()] = '';
|
|
}
|
|
|
|
chrome.storage.sync.get(bin, function(bin) {
|
|
if ( chrome.runtime.lastError ) {
|
|
callback(0, chrome.runtime.lastError.message);
|
|
return;
|
|
}
|
|
|
|
var chunkCount = 0;
|
|
for ( var i = 0; i < maxChunkCountPerItem; i += 16 ) {
|
|
if ( bin[dataKey + i.toString()] === '' ) {
|
|
break;
|
|
}
|
|
chunkCount = i + 16;
|
|
}
|
|
|
|
callback(chunkCount);
|
|
});
|
|
};
|
|
|
|
var deleteChunks = function(dataKey, start) {
|
|
var keys = [];
|
|
|
|
// No point in deleting more than:
|
|
// - The max number of chunks per item
|
|
// - The max number of chunks per storage limit
|
|
var n = Math.min(
|
|
maxChunkCountPerItem,
|
|
Math.ceil(maxStorageSize / maxChunkSize)
|
|
);
|
|
for ( var i = start; i < n; i++ ) {
|
|
keys.push(dataKey + i.toString());
|
|
}
|
|
if ( keys.length !== 0 ) {
|
|
chrome.storage.sync.remove(keys);
|
|
}
|
|
};
|
|
|
|
var start = function(/* dataKeys */) {
|
|
};
|
|
|
|
var push = function(dataKey, data, callback) {
|
|
|
|
var bin = {
|
|
'source': options.deviceName || options.defaultDeviceName,
|
|
'tstamp': Date.now(),
|
|
'data': data,
|
|
'size': 0
|
|
};
|
|
bin.size = JSON.stringify(bin).length;
|
|
var item = JSON.stringify(bin);
|
|
|
|
// 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."
|
|
bin = {};
|
|
var chunkCount = Math.ceil(item.length / maxChunkSize);
|
|
for ( var i = 0; i < chunkCount; i++ ) {
|
|
bin[dataKey + i.toString()] = item.substr(i * maxChunkSize, maxChunkSize);
|
|
}
|
|
bin[dataKey + i.toString()] = ''; // Sentinel
|
|
|
|
chrome.storage.sync.set(bin, function() {
|
|
var errorStr;
|
|
if ( chrome.runtime.lastError ) {
|
|
errorStr = chrome.runtime.lastError.message;
|
|
// https://github.com/gorhill/uBlock/issues/3006#issuecomment-332597677
|
|
// - Delete all that was pushed in case of failure.
|
|
// - It's unknown whether such issue applies only to Firefox:
|
|
// until such cases are reported for other browsers, we will
|
|
// reset the (now corrupted) content of the cloud storage
|
|
// only on Firefox.
|
|
if ( vAPI.webextFlavor.soup.has('firefox') ) {
|
|
chunkCount = 0;
|
|
}
|
|
}
|
|
callback(errorStr);
|
|
|
|
// Remove potentially unused trailing chunks
|
|
deleteChunks(dataKey, chunkCount);
|
|
});
|
|
};
|
|
|
|
var pull = function(dataKey, callback) {
|
|
|
|
var assembleChunks = function(bin) {
|
|
if ( chrome.runtime.lastError ) {
|
|
callback(null, chrome.runtime.lastError.message);
|
|
return;
|
|
}
|
|
|
|
// Assemble chunks into a single string.
|
|
var json = [], jsonSlice;
|
|
var i = 0;
|
|
for (;;) {
|
|
jsonSlice = bin[dataKey + i.toString()];
|
|
if ( jsonSlice === '' ) {
|
|
break;
|
|
}
|
|
json.push(jsonSlice);
|
|
i += 1;
|
|
}
|
|
|
|
var entry = null;
|
|
try {
|
|
entry = JSON.parse(json.join(''));
|
|
} catch(ex) {
|
|
}
|
|
callback(entry);
|
|
};
|
|
|
|
var fetchChunks = function(coarseCount, errorStr) {
|
|
if ( coarseCount === 0 || typeof errorStr === 'string' ) {
|
|
callback(null, errorStr);
|
|
return;
|
|
}
|
|
|
|
var bin = {};
|
|
for ( var i = 0; i < coarseCount; i++ ) {
|
|
bin[dataKey + i.toString()] = '';
|
|
}
|
|
|
|
chrome.storage.sync.get(bin, assembleChunks);
|
|
};
|
|
|
|
getCoarseChunkCount(dataKey, fetchChunks);
|
|
};
|
|
|
|
var getOptions = function(callback) {
|
|
if ( typeof callback !== 'function' ) {
|
|
return;
|
|
}
|
|
callback(options);
|
|
};
|
|
|
|
var 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 {
|
|
start: start,
|
|
push: push,
|
|
pull: pull,
|
|
getOptions: getOptions,
|
|
setOptions: setOptions
|
|
};
|
|
})();
|
|
|
|
/******************************************************************************/
|
|
/******************************************************************************/
|
|
|
|
})();
|
|
|
|
/******************************************************************************/
|