mirror of https://github.com/gorhill/uBlock.git
330 lines
11 KiB
JavaScript
330 lines
11 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 or non-background pages
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'use strict';
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/******************************************************************************/
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/******************************************************************************/
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vAPI.T0 = Date.now();
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/******************************************************************************/
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vAPI.setTimeout = vAPI.setTimeout || self.setTimeout.bind(self);
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/******************************************************************************/
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vAPI.webextFlavor = {
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major: 0,
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soup: new Set()
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};
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(( ) => {
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const ua = navigator.userAgent;
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const flavor = vAPI.webextFlavor;
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const soup = flavor.soup;
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const dispatch = function() {
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window.dispatchEvent(new CustomEvent('webextFlavor'));
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};
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// This is always true.
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soup.add('ublock').add('webext');
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// Whether this is a dev build.
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if ( /^\d+\.\d+\.\d+\D/.test(browser.runtime.getManifest().version) ) {
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soup.add('devbuild');
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}
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if ( /\bMobile\b/.test(ua) ) {
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soup.add('mobile');
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}
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// Asynchronous
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if (
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browser instanceof Object &&
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typeof browser.runtime.getBrowserInfo === 'function'
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) {
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browser.runtime.getBrowserInfo().then(info => {
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flavor.major = parseInt(info.version, 10) || 60;
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soup.add(info.vendor.toLowerCase())
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.add(info.name.toLowerCase());
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if ( soup.has('firefox') && flavor.major < 57 ) {
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soup.delete('html_filtering');
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}
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dispatch();
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});
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if ( browser.runtime.getURL('').startsWith('moz-extension://') ) {
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soup.add('mozilla')
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.add('firefox')
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.add('user_stylesheet')
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.add('html_filtering');
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flavor.major = 60;
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}
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return;
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}
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// Synchronous -- order of tests is important
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let match;
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if ( (match = /\bEdge\/(\d+)/.exec(ua)) !== null ) {
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flavor.major = parseInt(match[1], 10) || 0;
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soup.add('microsoft').add('edge');
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} else if ( (match = /\bOPR\/(\d+)/.exec(ua)) !== null ) {
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const reEx = /\bChrom(?:e|ium)\/([\d.]+)/;
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if ( reEx.test(ua) ) { match = reEx.exec(ua); }
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flavor.major = parseInt(match[1], 10) || 0;
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soup.add('opera').add('chromium');
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} else if ( (match = /\bChromium\/(\d+)/.exec(ua)) !== null ) {
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flavor.major = parseInt(match[1], 10) || 0;
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soup.add('chromium');
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} else if ( (match = /\bChrome\/(\d+)/.exec(ua)) !== null ) {
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flavor.major = parseInt(match[1], 10) || 0;
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soup.add('google').add('chromium');
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} else if ( (match = /\bSafari\/(\d+)/.exec(ua)) !== null ) {
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flavor.major = parseInt(match[1], 10) || 0;
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soup.add('apple').add('safari');
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}
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// https://github.com/gorhill/uBlock/issues/3588
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if ( soup.has('chromium') && flavor.major >= 66 ) {
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soup.add('user_stylesheet');
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}
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// Don't starve potential listeners
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vAPI.setTimeout(dispatch, 97);
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})();
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/******************************************************************************/
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{
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const punycode = self.punycode;
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const reCommonHostnameFromURL = /^https?:\/\/([0-9a-z_][0-9a-z._-]*[0-9a-z])\//;
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const reAuthorityFromURI = /^(?:[^:\/?#]+:)?(\/\/[^\/?#]+)/;
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const reHostFromNakedAuthority = /^[0-9a-z._-]+[0-9a-z]$/i;
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const reHostFromAuthority = /^(?:[^@]*@)?([^:]+)(?::\d*)?$/;
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const reIPv6FromAuthority = /^(?:[^@]*@)?(\[[0-9a-f:]+\])(?::\d*)?$/i;
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const reMustNormalizeHostname = /[^0-9a-z._-]/;
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vAPI.hostnameFromURI = function(uri) {
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let matches = reCommonHostnameFromURL.exec(uri);
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if ( matches !== null ) { return matches[1]; }
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matches = reAuthorityFromURI.exec(uri);
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if ( matches === null ) { return ''; }
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const authority = matches[1].slice(2);
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if ( reHostFromNakedAuthority.test(authority) ) {
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return authority.toLowerCase();
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}
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matches = reHostFromAuthority.exec(authority);
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if ( matches === null ) {
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matches = reIPv6FromAuthority.exec(authority);
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if ( matches === null ) { return ''; }
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}
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let hostname = matches[1];
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while ( hostname.endsWith('.') ) {
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hostname = hostname.slice(0, -1);
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}
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if ( reMustNormalizeHostname.test(hostname) ) {
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hostname = punycode.toASCII(hostname.toLowerCase());
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}
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return hostname;
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};
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const reHostnameFromNetworkURL =
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/^(?:http|ws|ftp)s?:\/\/([0-9a-z_][0-9a-z._-]*[0-9a-z])\//;
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vAPI.hostnameFromNetworkURL = function(url) {
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const matches = reHostnameFromNetworkURL.exec(url);
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return matches !== null ? matches[1] : '';
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};
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const psl = self.publicSuffixList;
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const reIPAddressNaive = /^\d+\.\d+\.\d+\.\d+$|^\[[\da-zA-Z:]+\]$/;
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vAPI.domainFromHostname = function(hostname) {
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return reIPAddressNaive.test(hostname)
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? hostname
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: psl.getDomain(hostname);
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};
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}
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/******************************************************************************/
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vAPI.download = function(details) {
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if ( !details.url ) { return; }
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const a = document.createElement('a');
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a.href = details.url;
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a.setAttribute('download', details.filename || '');
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a.setAttribute('type', 'text/plain');
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a.dispatchEvent(new MouseEvent('click'));
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};
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/******************************************************************************/
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vAPI.getURL = browser.runtime.getURL;
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/******************************************************************************/
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vAPI.i18n = browser.i18n.getMessage;
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// http://www.w3.org/International/questions/qa-scripts#directions
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document.body.setAttribute(
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'dir',
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['ar', 'he', 'fa', 'ps', 'ur'].indexOf(vAPI.i18n('@@ui_locale')) !== -1
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? 'rtl'
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: 'ltr'
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);
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/******************************************************************************/
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// https://github.com/gorhill/uBlock/issues/3057
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// - webNavigation.onCreatedNavigationTarget become broken on Firefox when we
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// try to make the popup panel close itself using the original
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// `window.open('', '_self').close()`.
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vAPI.closePopup = function() {
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if ( vAPI.webextFlavor.soup.has('firefox') ) {
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window.close();
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return;
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}
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// TODO: try to figure why this was used instead of a plain window.close().
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// https://github.com/gorhill/uBlock/commit/b301ac031e0c2e9a99cb6f8953319d44e22f33d2#diff-bc664f26b9c453e0d43a9379e8135c6a
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window.open('', '_self').close();
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};
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/******************************************************************************/
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// A localStorage-like object which should be accessible from the
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// background page or auxiliary pages.
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// This storage is optional, but it is nice to have, for a more polished user
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// experience.
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//
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// https://github.com/gorhill/uBlock/issues/2824
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// Use a dummy localStorage if for some reasons it's not available.
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//
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// https://github.com/gorhill/uMatrix/issues/840
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// Always use a wrapper to seamlessly handle exceptions
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//
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// https://github.com/uBlockOrigin/uBlock-issues/issues/899
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// Convert into asynchronous access API.
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vAPI.localStorage = {
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start: function() {
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if ( this.cache instanceof Promise ) { return this.cache; }
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if ( this.cache instanceof Object ) { return Promise.resolve(); }
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const onChanged = (changes, area) => {
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if (
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area !== 'local' ||
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changes instanceof Object === false ||
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changes.localStorage instanceof Object === false
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) {
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return;
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}
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const newValue = changes.localStorage.newValue;
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this.cache = newValue instanceof Object ? newValue : {};
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};
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this.cache = new Promise(resolve => {
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browser.storage.local.get('localStorage', bin => {
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this.cache = undefined;
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if (
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bin instanceof Object === false ||
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bin.localStorage instanceof Object === false
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) {
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this.cache = {};
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const ls = self.localStorage;
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for ( let i = 0; i < ls.length; i++ ) {
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const key = ls.key(i);
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this.cache[key] = ls.getItem(key);
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}
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//ls.clear();
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browser.storage.local.set({ localStorage: this.cache });
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} else {
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try {
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this.cache = bin.localStorage;
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} catch(ex) {
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}
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}
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if ( this.cache instanceof Object === false ) {
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this.cache = {};
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}
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resolve();
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browser.storage.onChanged.addListener(onChanged);
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self.addEventListener('beforeunload', ( ) => {
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this.cache = undefined;
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browser.storage.onChanged.removeListener(onChanged);
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});
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});
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});
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return this.cache;
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},
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clear: function() {
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this.cache = {};
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return browser.storage.local.set({ localStorage: this.cache });
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},
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getItem: function(key) {
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if ( this.cache instanceof Object === false ) {
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console.info(`localStorage.getItem('${key}') not ready`);
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return null;
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}
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const value = this.cache[key];
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return value !== undefined ? value : null;
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},
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getItemAsync: function(key) {
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return this.start().then(( ) => {
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const value = this.cache[key];
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return value !== undefined ? value : null;
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});
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},
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removeItem: function(key) {
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this.setItem(key);
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},
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setItem: function(key, value = undefined) {
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return this.start().then(( ) => {
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if ( value === this.cache[key] ) { return; }
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this.cache[key] = value;
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return browser.storage.local.set({ localStorage: this.cache });
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});
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},
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cache: undefined,
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};
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vAPI.localStorage.start();
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/*******************************************************************************
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DO NOT:
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- Remove the following code
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- Add code beyond the following code
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Reason:
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- https://github.com/gorhill/uBlock/pull/3721
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- uBO never uses the return value from injected content scripts
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**/
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void 0;
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