mirror of
https://github.com/gorhill/uBlock.git
synced 2024-07-19 11:18:42 +02:00
9637ab56a9
This is to fix the rendering of the menu entry in
Firefox Fenix, which displays both the icon title
and badge text as a menu entry:
Before the fix:
uBlock Origin (76) 76
After the fix:
uBlock Origin 76
The badge text will still be part of the icon title
when the icon badge is disabled by the user or when
the platform does not supprt browserAction.setIcon()
(as is the case on current Firefox for Android).
1606 lines
55 KiB
JavaScript
1606 lines
55 KiB
JavaScript
/*******************************************************************************
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uBlock Origin - a browser extension to block requests.
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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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'use strict';
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/******************************************************************************/
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{
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// >>>>> start of local scope
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/******************************************************************************/
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/******************************************************************************/
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const browser = self.browser;
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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-eval'") !== -1;
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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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/******************************************************************************/
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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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/******************************************************************************/
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vAPI.storage = webext.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.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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// 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: vAPI.webextFlavor.soup.has('chromium') === false || undefined,
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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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let iframe = document.createElement('iframe');
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const messageHandler = ev => {
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if ( ev.origin !== self.location.origin ) { return; }
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window.removeEventListener('message', messageHandler);
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const setting = this.webRTCSupported.setting;
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this.webRTCSupported = ev.data === 'webRTCSupported';
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this.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 ) { return; }
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const bpn = bp.network;
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if ( setting ) {
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bpn.webRTCIPHandlingPolicy.clear({
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scope: 'regular',
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});
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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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// https://github.com/gorhill/uBlock/issues/3009
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// Firefox currently works differently, use
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// `default_public_interface_only` for now.
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bpn.webRTCIPHandlingPolicy.set({
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value: vAPI.webextFlavor.soup.has('chromium')
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? 'disable_non_proxied_udp'
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: 'default_public_interface_only',
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scope: 'regular',
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});
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}
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},
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set: function(details) {
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for ( const setting in details ) {
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if ( details.hasOwnProperty(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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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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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.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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if ( typeof details.url !== 'string' ) {
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details.url = '';
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}
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if ( /^https?:\/\//.test(details.url) === false ) {
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details.frameId = 0;
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details.url = this.sanitizeURL(details.url);
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this.onNavigation(details);
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}
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this.onCreated(details);
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});
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browser.webNavigation.onCommitted.addListener(details => {
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details.url = this.sanitizeURL(details.url);
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this.onNavigation(details);
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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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browser.tabs.onUpdated.addListener((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 = this.sanitizeURL(changeInfo.url);
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}
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this.onUpdated(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(async windowId => {
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if ( windowId === browser.windows.WINDOW_ID_NONE ) { return; }
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const tabs = await vAPI.tabs.query({ active: true, windowId });
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if ( tabs.length === 0 ) { return; }
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const tab = tabs[0];
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this.onActivated({ tabId: tab.id, windowId: tab.windowId });
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});
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}
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browser.tabs.onRemoved.addListener((tabId, details) => {
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this.onClosed(tabId, details);
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});
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}
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async executeScript() {
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let result;
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try {
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result = await webext.tabs.executeScript(...arguments);
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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() {
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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() {
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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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|
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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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|
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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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// For some reasons, some platforms do not honor the left,top
|
|
// position when specified. I found that further calling
|
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// windows.update again with the same position _may_ help.
|
|
if ( details.popup !== undefined && vAPI.windows instanceof Object ) {
|
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const createDetails = {
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url: details.url,
|
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type: details.popup,
|
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};
|
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if ( details.box instanceof Object ) {
|
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Object.assign(createDetails, details.box);
|
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}
|
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const win = await vAPI.windows.create(createDetails);
|
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if ( win === null ) { return; }
|
|
if ( details.box instanceof Object === false ) { return; }
|
|
if (
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win.left === details.box.left &&
|
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win.top === details.box.top
|
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) {
|
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return;
|
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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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}
|
|
|
|
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 ) {
|
|
details.index = tab.index + 1;
|
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} else {
|
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details.index = undefined;
|
|
}
|
|
subWrapper();
|
|
}
|
|
|
|
// Properties of the details object:
|
|
// - url: 'URL', => the address that will be opened
|
|
// - tabId: 1, => the tab is used if set, instead of creating a new one
|
|
// - index: -1, => undefined: end of the list, -1: following tab, or
|
|
// after index
|
|
// - active: false, => opens the tab in background - true and undefined:
|
|
// foreground
|
|
// - select: true, => if a tab is already opened with that url, then select
|
|
// it instead of opening a new one
|
|
// - popup: true => open in a new window
|
|
|
|
async open(details) {
|
|
let targetURL = details.url;
|
|
if ( typeof targetURL !== 'string' || targetURL === '' ) {
|
|
return null;
|
|
}
|
|
|
|
// extension pages
|
|
if ( /^[\w-]{2,}:/.test(targetURL) !== true ) {
|
|
targetURL = vAPI.getURL(targetURL);
|
|
}
|
|
|
|
if ( !details.select ) {
|
|
this.create(targetURL, details);
|
|
return;
|
|
}
|
|
|
|
// https://github.com/gorhill/uBlock/issues/3053#issuecomment-332276818
|
|
// Do not try to lookup uBO's own pages with FF 55 or less.
|
|
if (
|
|
vAPI.webextFlavor.soup.has('firefox') &&
|
|
vAPI.webextFlavor.major < 56
|
|
) {
|
|
this.create(targetURL, details);
|
|
return;
|
|
}
|
|
|
|
// https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API/tabs/query#Parameters
|
|
// "Note that fragment identifiers are not matched."
|
|
// Fragment identifiers ARE matched -- we need to remove the fragment.
|
|
const pos = targetURL.indexOf('#');
|
|
const targetURLWithoutHash = pos === -1
|
|
? targetURL
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|
: targetURL.slice(0, pos);
|
|
|
|
const tabs = await vAPI.tabs.query({ url: targetURLWithoutHash });
|
|
if ( tabs.length === 0 ) {
|
|
this.create(targetURL, details);
|
|
return;
|
|
}
|
|
let tab = tabs[0];
|
|
const updateDetails = { active: true };
|
|
// https://github.com/uBlockOrigin/uBlock-issues/issues/592
|
|
if ( tab.url.startsWith(targetURL) === false ) {
|
|
updateDetails.url = targetURL;
|
|
}
|
|
tab = await vAPI.tabs.update(tab.id, updateDetails);
|
|
if ( vAPI.windows instanceof Object === false ) { return; }
|
|
vAPI.windows.update(tab.windowId, { focused: true });
|
|
}
|
|
|
|
async update() {
|
|
let tab;
|
|
try {
|
|
tab = await webext.tabs.update(...arguments);
|
|
}
|
|
catch (reason) {
|
|
}
|
|
return tab instanceof Object ? tab : null;
|
|
}
|
|
|
|
// Replace the URL of a tab. Noop if the tab does not exist.
|
|
replace(tabId, url) {
|
|
tabId = toTabId(tabId);
|
|
if ( tabId === 0 ) { return; }
|
|
|
|
let targetURL = url;
|
|
|
|
// extension pages
|
|
if ( /^[\w-]{2,}:/.test(targetURL) !== true ) {
|
|
targetURL = vAPI.getURL(targetURL);
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
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.
|
|
|
|
vAPI.setIcon = (( ) => {
|
|
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' } },
|
|
{ path: { '16': 'img/icon_16.png', '32': 'img/icon_32.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++ ) {
|
|
const path = icons[i].path;
|
|
for ( const key in path ) {
|
|
if ( path.hasOwnProperty(key) === false ) { continue; }
|
|
imgs.push({ i: i, p: key });
|
|
}
|
|
}
|
|
|
|
// 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');
|
|
const iconData = [ null, null ];
|
|
for ( const img of imgs ) {
|
|
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;
|
|
}
|
|
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
|
|
|
|
return async function(tabId, details) {
|
|
tabId = toTabId(tabId);
|
|
if ( tabId === 0 ) { return; }
|
|
|
|
const tab = await vAPI.tabs.get(tabId);
|
|
if ( tab === null ) { return; }
|
|
|
|
const { parts, state, badge, color } = 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 && (
|
|
browserAction.setIcon === undefined || (parts & 0b1000) !== 0
|
|
)
|
|
) {
|
|
browserAction.setTitle({
|
|
tabId: tab.id,
|
|
title: titleTemplate.replace(
|
|
'{badge}',
|
|
state === 1 ? (badge !== '' ? badge : '0') : 'off'
|
|
)
|
|
});
|
|
}
|
|
|
|
if ( vAPI.contextMenu instanceof Object ) {
|
|
vAPI.contextMenu.onMustUpdate(tabId);
|
|
}
|
|
};
|
|
})();
|
|
|
|
browser.browserAction.onClicked.addListener(function(tab) {
|
|
vAPI.tabs.open({
|
|
select: true,
|
|
url: 'popup.html?tabId=' + tab.id + '&responsive=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.
|
|
|
|
vAPI.messaging = {
|
|
ports: new Map(),
|
|
listeners: new Map(),
|
|
defaultHandler: null,
|
|
PRIVILEGED_URL: vAPI.getURL(''),
|
|
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);
|
|
},
|
|
|
|
onPortConnect: function(port) {
|
|
port.onDisconnect.addListener(
|
|
port => this.onPortDisconnect(port)
|
|
);
|
|
port.onMessage.addListener(
|
|
(request, port) => this.onPortMessage(request, port)
|
|
);
|
|
this.ports.set(port.name, {
|
|
port,
|
|
privileged: port.sender.url.startsWith(this.PRIVILEGED_URL)
|
|
});
|
|
},
|
|
|
|
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 } of this.ports.values() ) {
|
|
const tab = port.sender && port.sender.tab;
|
|
if ( !tab ) { continue; }
|
|
if ( tab.id === tabId ) {
|
|
this.onPortDisconnect(port);
|
|
}
|
|
}
|
|
});
|
|
}
|
|
},
|
|
|
|
broadcast: function(message) {
|
|
const messageWrapper = { broadcast: true, msg: message };
|
|
for ( const { port } of this.ports.values() ) {
|
|
try {
|
|
port.postMessage(messageWrapper);
|
|
} catch(ex) {
|
|
this.ports.delete(port.name);
|
|
}
|
|
}
|
|
},
|
|
|
|
onFrameworkMessage: function(request, port, callback) {
|
|
const sender = port && port.sender;
|
|
if ( !sender ) { return; }
|
|
const tabId = sender.tab && sender.tab.id || undefined;
|
|
const msg = request.msg;
|
|
switch ( msg.what ) {
|
|
case 'connectionAccepted':
|
|
case 'connectionRefused': {
|
|
const toPort = this.ports.get(msg.fromToken);
|
|
if ( toPort !== undefined ) {
|
|
msg.tabId = tabId;
|
|
toPort.port.postMessage(request);
|
|
} else {
|
|
msg.what = 'connectionBroken';
|
|
port.postMessage(request);
|
|
}
|
|
break;
|
|
}
|
|
case 'connectionRequested':
|
|
msg.tabId = tabId;
|
|
for ( const { port: toPort } of this.ports.values() ) {
|
|
if ( toPort === port ) { continue; }
|
|
toPort.postMessage(request);
|
|
}
|
|
break;
|
|
case 'connectionBroken':
|
|
case 'connectionCheck':
|
|
case 'connectionMessage': {
|
|
const toPort = this.ports.get(
|
|
port.name === msg.fromToken ? msg.toToken : msg.fromToken
|
|
);
|
|
if ( toPort !== undefined ) {
|
|
msg.tabId = tabId;
|
|
toPort.port.postMessage(request);
|
|
} else {
|
|
msg.what = 'connectionBroken';
|
|
port.postMessage(request);
|
|
}
|
|
break;
|
|
}
|
|
case 'extendClient':
|
|
vAPI.tabs.executeScript(tabId, {
|
|
file: '/js/vapi-client-extra.js',
|
|
}).then(( ) => {
|
|
callback();
|
|
});
|
|
break;
|
|
case 'userCSS':
|
|
if ( tabId === undefined ) { break; }
|
|
const details = {
|
|
code: undefined,
|
|
frameId: sender.frameId,
|
|
matchAboutBlank: true
|
|
};
|
|
if ( vAPI.supportsUserStylesheets ) {
|
|
details.cssOrigin = 'user';
|
|
}
|
|
if ( msg.add ) {
|
|
details.runAt = 'document_start';
|
|
}
|
|
const promises = [];
|
|
for ( const cssText of msg.add ) {
|
|
details.code = cssText;
|
|
promises.push(vAPI.tabs.insertCSS(tabId, details));
|
|
}
|
|
if ( typeof webext.tabs.removeCSS === 'function' ) {
|
|
for ( const cssText of msg.remove ) {
|
|
details.code = cssText;
|
|
promises.push(vAPI.tabs.removeCSS(tabId, details));
|
|
}
|
|
}
|
|
Promise.all(promises).then(( ) => {
|
|
callback();
|
|
});
|
|
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
|
|
if ( this.messaging.ports.has(this.port.name) ) {
|
|
this.port.postMessage({
|
|
msgId: this.msgId,
|
|
msg: response !== undefined ? response : null,
|
|
});
|
|
}
|
|
// 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 fromDetails = this.ports.get(port.name);
|
|
if ( fromDetails === undefined ) { return; }
|
|
|
|
const listenerDetails = this.listeners.get(request.channel);
|
|
let r = this.UNHANDLED;
|
|
if (
|
|
(listenerDetails !== undefined) &&
|
|
(listenerDetails.privileged === false || fromDetails.privileged)
|
|
|
|
) {
|
|
r = listenerDetails.fn(request.msg, port.sender, callback);
|
|
}
|
|
if ( r !== this.UNHANDLED ) { return; }
|
|
|
|
// Auxiliary process to main process: default handler
|
|
if ( fromDetails.privileged ) {
|
|
r = this.defaultHandler(request.msg, port.sender, callback);
|
|
if ( r !== this.UNHANDLED ) { return; }
|
|
}
|
|
|
|
// Auxiliary process to main process: no handler
|
|
log.info(
|
|
`vAPI.messaging.onPortMessage > unhandled request: ${JSON.stringify(request.msg)}`,
|
|
request
|
|
);
|
|
|
|
// Need to callback anyways in case caller expected an answer, or
|
|
// else there is a memory leak on caller's side
|
|
callback();
|
|
},
|
|
};
|
|
|
|
/******************************************************************************/
|
|
/******************************************************************************/
|
|
|
|
// https://github.com/gorhill/uBlock/issues/3474
|
|
// https://github.com/gorhill/uBlock/issues/2823
|
|
// Foil ability of web pages to identify uBO through
|
|
// its web accessible resources.
|
|
// https://github.com/gorhill/uBlock/issues/3497
|
|
// Prevent web pages from interfering with uBO's element picker
|
|
// https://github.com/uBlockOrigin/uBlock-issues/issues/550
|
|
// Support using a new secret for every network request.
|
|
|
|
vAPI.warSecret = (( ) => {
|
|
const generateSecret = ( ) => {
|
|
return Math.floor(Math.random() * 982451653 + 982451653).toString(36);
|
|
};
|
|
|
|
const root = vAPI.getURL('/');
|
|
const secrets = [];
|
|
let lastSecretTime = 0;
|
|
|
|
const guard = function(details) {
|
|
const url = details.url;
|
|
const pos = secrets.findIndex(secret =>
|
|
url.lastIndexOf(`?secret=${secret}`) !== -1
|
|
);
|
|
if ( pos === -1 ) {
|
|
return { redirectUrl: root };
|
|
}
|
|
secrets.splice(pos, 1);
|
|
};
|
|
|
|
browser.webRequest.onBeforeRequest.addListener(
|
|
guard,
|
|
{
|
|
urls: [ root + 'web_accessible_resources/*' ]
|
|
},
|
|
[ 'blocking' ]
|
|
);
|
|
|
|
return ( ) => {
|
|
if ( secrets.length !== 0 ) {
|
|
if ( (Date.now() - lastSecretTime) > 5000 ) {
|
|
secrets.splice(0);
|
|
} else if ( secrets.length > 256 ) {
|
|
secrets.splice(0, secrets.length - 192);
|
|
}
|
|
}
|
|
lastSecretTime = Date.now();
|
|
const secret = generateSecret();
|
|
secrets.push(secret);
|
|
return `?secret=${secret}`;
|
|
};
|
|
})();
|
|
|
|
/******************************************************************************/
|
|
|
|
vAPI.Net = class {
|
|
constructor() {
|
|
this.validTypes = new Set();
|
|
{
|
|
const wrrt = browser.webRequest.ResourceType;
|
|
for ( const typeKey in wrrt ) {
|
|
if ( wrrt.hasOwnProperty(typeKey) ) {
|
|
this.validTypes.add(wrrt[typeKey]);
|
|
}
|
|
}
|
|
}
|
|
this.suspendableListener = undefined;
|
|
this.listenerMap = new WeakMap();
|
|
this.suspendDepth = 0;
|
|
|
|
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' ]
|
|
);
|
|
}
|
|
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; }
|
|
return this.suspendableListener(details);
|
|
}
|
|
setSuspendableListener(listener) {
|
|
this.suspendableListener = listener;
|
|
}
|
|
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;
|
|
}
|
|
suspendOneRequest() {
|
|
}
|
|
unsuspendAllRequests() {
|
|
}
|
|
suspend(force = false) {
|
|
if ( this.canSuspend() || force ) {
|
|
this.suspendDepth += 1;
|
|
}
|
|
}
|
|
unsuspend(all = false) {
|
|
if ( this.suspendDepth === 0 ) { return; }
|
|
if ( all ) {
|
|
this.suspendDepth = 0;
|
|
} else {
|
|
this.suspendDepth -= 1;
|
|
}
|
|
if ( this.suspendDepth !== 0 ) { return; }
|
|
this.unsuspendAllRequests();
|
|
}
|
|
canSuspend() {
|
|
return false;
|
|
}
|
|
async benchmark() {
|
|
if ( typeof µBlock !== 'object' ) { return; }
|
|
const requests = await µBlock.loadBenchmarkDataset();
|
|
if ( Array.isArray(requests) === false || requests.length === 0 ) {
|
|
console.info('No requests found to benchmark');
|
|
return;
|
|
}
|
|
const mappedTypes = new Map([
|
|
[ 'document', 'main_frame' ],
|
|
[ 'subdocument', 'sub_frame' ],
|
|
]);
|
|
console.info('vAPI.net.onBeforeSuspendableRequest()...');
|
|
const t0 = self.performance.now();
|
|
const promises = [];
|
|
const details = {
|
|
documentUrl: '',
|
|
tabId: -1,
|
|
parentFrameId: -1,
|
|
frameId: 0,
|
|
type: '',
|
|
url: '',
|
|
};
|
|
for ( const request of requests ) {
|
|
details.documentUrl = request.frameUrl;
|
|
details.tabId = -1;
|
|
details.parentFrameId = -1;
|
|
details.frameId = 0;
|
|
details.type = mappedTypes.get(request.cpt) || request.cpt;
|
|
details.url = request.url;
|
|
if ( details.type === 'main_frame' ) { continue; }
|
|
promises.push(this.onBeforeSuspendableRequest(details));
|
|
}
|
|
return Promise.all(promises).then(results => {
|
|
let blockCount = 0;
|
|
for ( const r of results ) {
|
|
if ( r !== undefined ) { blockCount += 1; }
|
|
}
|
|
const t1 = self.performance.now();
|
|
const dur = t1 - t0;
|
|
console.info(`Evaluated ${requests.length} requests in ${dur.toFixed(0)} ms`);
|
|
console.info(`\tBlocked ${blockCount} requests`);
|
|
console.info(`\tAverage: ${(dur / requests.length).toFixed(3)} ms per request`);
|
|
});
|
|
}
|
|
};
|
|
|
|
/******************************************************************************/
|
|
/******************************************************************************/
|
|
|
|
// 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,
|
|
_entries: [],
|
|
_createEntry: function(entry) {
|
|
webext.menus.create(JSON.parse(JSON.stringify(entry)));
|
|
},
|
|
onMustUpdate: function() {},
|
|
setEntries: function(entries, callback) {
|
|
entries = entries || [];
|
|
let n = Math.max(this._entries.length, entries.length);
|
|
for ( let i = 0; i < n; i++ ) {
|
|
const oldEntryId = this._entries[i];
|
|
const newEntry = entries[i];
|
|
if ( oldEntryId && newEntry ) {
|
|
if ( newEntry.id !== oldEntryId ) {
|
|
webext.menus.remove(oldEntryId);
|
|
this._createEntry(newEntry);
|
|
this._entries[i] = newEntry.id;
|
|
}
|
|
} else if ( oldEntryId && !newEntry ) {
|
|
webext.menus.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 ) {
|
|
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
|
|
|
|
vAPI.adminStorage = (( ) => {
|
|
if ( webext.storage.managed instanceof Object === false ) {
|
|
return {
|
|
getItem: function() {
|
|
return Promise.resolve();
|
|
},
|
|
};
|
|
}
|
|
return {
|
|
getItem: async function(key) {
|
|
let bin;
|
|
try {
|
|
bin = await webext.storage.managed.get(key);
|
|
} catch(ex) {
|
|
}
|
|
if ( bin instanceof Object ) {
|
|
return bin[key];
|
|
}
|
|
}
|
|
};
|
|
})();
|
|
|
|
/******************************************************************************/
|
|
/******************************************************************************/
|
|
|
|
// 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 maxStorageSize = QUOTA_BYTES;
|
|
|
|
const 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.
|
|
|
|
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 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 = function(dataKey, start) {
|
|
const keys = [];
|
|
|
|
// No point in deleting more than:
|
|
// - The max number of chunks per item
|
|
// - The max number of chunks per storage limit
|
|
const n = Math.min(
|
|
maxChunkCountPerItem,
|
|
Math.ceil(maxStorageSize / maxChunkSize)
|
|
);
|
|
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(dataKey, data) {
|
|
|
|
let bin = {
|
|
'source': options.deviceName || options.defaultDeviceName,
|
|
'tstamp': Date.now(),
|
|
'data': data,
|
|
'size': 0
|
|
};
|
|
bin.size = JSON.stringify(bin).length;
|
|
const 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 = {};
|
|
let chunkCount = Math.ceil(item.length / maxChunkSize);
|
|
for ( let i = 0; i < chunkCount; i++ ) {
|
|
bin[dataKey + i.toString()] = item.substr(i * maxChunkSize, maxChunkSize);
|
|
}
|
|
bin[dataKey + chunkCount.toString()] = ''; // Sentinel
|
|
|
|
let result;
|
|
let errorStr;
|
|
try {
|
|
result = await webext.storage.sync.set(bin);
|
|
} catch (reason) {
|
|
errorStr = reason;
|
|
}
|
|
|
|
// 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 ( errorStr !== undefined && vAPI.webextFlavor.soup.has('firefox') ) {
|
|
chunkCount = 0;
|
|
}
|
|
|
|
// Remove potentially unused trailing chunks
|
|
deleteChunks(dataKey, chunkCount);
|
|
|
|
return errorStr;
|
|
};
|
|
|
|
const pull = async function(dataKey) {
|
|
|
|
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 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 json = [], jsonSlice;
|
|
let i = 0;
|
|
for (;;) {
|
|
jsonSlice = bin[dataKey + i.toString()];
|
|
if ( jsonSlice === '' || jsonSlice === undefined ) { break; }
|
|
json.push(jsonSlice);
|
|
i += 1;
|
|
}
|
|
let entry = null;
|
|
try {
|
|
entry = JSON.parse(json.join(''));
|
|
} catch(ex) {
|
|
}
|
|
return entry;
|
|
};
|
|
|
|
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, getOptions, setOptions };
|
|
})();
|
|
|
|
/******************************************************************************/
|
|
/******************************************************************************/
|
|
|
|
// <<<<< end of local scope
|
|
}
|
|
|
|
/******************************************************************************/
|