mirror of
https://github.com/gorhill/uBlock.git
synced 2026-03-11 09:04:36 +00:00
4fbcabbc66
Since permissions are now managed by the browsers, the browser will take care whether to enforce those "usafe" rules according to the permissions in effect on a given site.
1342 lines
44 KiB
JavaScript
1342 lines
44 KiB
JavaScript
/*******************************************************************************
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uBlock Origin - a comprehensive, efficient content blocker
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Copyright (C) 2022-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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import * as makeScriptlet from './make-scriptlets.js';
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import * as sfp from './js/static-filtering-parser.js';
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import {
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createHash,
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randomBytes,
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} from 'crypto';
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import {
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dnrRulesetFromRawLists,
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mergeRules,
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} from './js/static-dnr-filtering.js';
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import { execSync } from 'node:child_process';
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import fs from 'fs/promises';
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import path from 'path';
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import process from 'process';
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import redirectResourcesMap from './js/redirect-resources.js';
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import { safeReplace } from './safe-replace.js';
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/******************************************************************************/
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const commandLineArgs = (( ) => {
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const args = new Map();
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let name, value;
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for ( const arg of process.argv.slice(2) ) {
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const pos = arg.indexOf('=');
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if ( pos === -1 ) {
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name = arg;
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value = '';
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} else {
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name = arg.slice(0, pos);
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value = arg.slice(pos+1);
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}
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args.set(name, value);
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}
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return args;
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})();
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const platform = commandLineArgs.get('platform') || 'chromium';
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const outputDir = commandLineArgs.get('output') || '.';
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const cacheDir = `${outputDir}/../mv3-data`;
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const rulesetDir = `${outputDir}/rulesets`;
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const scriptletDir = `${rulesetDir}/scripting`;
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const envExtra = (( ) => {
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const env = commandLineArgs.get('env');
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return env ? env.split('|') : [];
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})();
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const env = [
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platform,
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'native_css_has',
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'mv3',
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'ublock',
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'ubol',
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'user_stylesheet',
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...envExtra,
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];
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if ( platform === 'edge' ) {
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env.push('chromium');
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}
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/******************************************************************************/
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const jsonSetMapReplacer = (k, v) => {
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if ( v instanceof Set || v instanceof Map ) {
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if ( v.size === 0 ) { return; }
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return Array.from(v);
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}
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return v;
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};
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const uidint32 = (s) => {
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const h = createHash('sha256').update(s).digest('hex').slice(0,8);
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return parseInt(h,16) & 0x7FFFFFFF;
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};
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/******************************************************************************/
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const consoleLog = console.log;
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const stdOutput = [];
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const log = (text, silent = true) => {
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stdOutput.push(text);
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if ( silent === false ) {
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consoleLog(text);
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}
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};
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console.log = log;
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const logProgress = text => {
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process?.stdout?.clearLine?.();
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process?.stdout?.cursorTo?.(0);
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process?.stdout?.write?.(text.length > 120 ? `${text.slice(0, 119)}… ` : `${text} `);
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};
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/******************************************************************************/
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async function fetchText(url, cacheDir) {
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logProgress(`Reading locally cached ${url}`);
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const fname = url
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.replace(/^https?:\/\//, '')
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.replace(/\//g, '_');(url);
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const content = await fs.readFile(
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`${cacheDir}/${fname}`,
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{ encoding: 'utf8' }
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).catch(( ) => { });
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if ( content !== undefined ) {
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log(`\tFetched local ${url}`);
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return { url, content };
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}
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logProgress(`Fetching remote ${url}`);
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log(`\tFetching remote ${url}`);
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const response = await fetch(url).catch(( ) => { });
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if ( response === undefined ) {
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return { url, error: `Fetching failed: ${url}` };
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}
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let text;
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if ( response.ok ) {
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text = await response.text().catch(( ) => { });
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} else {
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text = await fallbackFetchText(url).catch(( ) => { });
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}
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if ( text === undefined ) {
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return { url, error: `Fetching text content failed: ${url}` };
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}
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writeFile(`${cacheDir}/${fname}`, text);
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return { url, content: text };
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}
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async function fallbackFetchText(url) {
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const match = /^https:\/\/raw\.githubusercontent\.com\/([^/]+)\/([^/]+)\/master\/([^?]+)/.exec(url);
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if ( match === null ) { return; }
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logProgress(`\tGitHub CLI-fetching remote ${url}`);
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// https://docs.github.com/en/rest/repos/contents
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const content = execSync(`gh api \
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-H "Accept: application/vnd.github.raw+json" \
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-H "X-GitHub-Api-Version: 2022-11-28" \
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/repos/${match[1]}/${match[2]}/contents/${match[3]} \
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`, { encoding: 'utf8' });
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return content;
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}
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/******************************************************************************/
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const writeFile = async (fname, data) => {
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const dir = path.dirname(fname);
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await fs.mkdir(dir, { recursive: true });
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const promise = fs.writeFile(fname, data);
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writeOps.push(promise);
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return promise;
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};
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const copyFile = async (from, to) => {
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const dir = path.dirname(to);
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await fs.mkdir(dir, { recursive: true });
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const promise = fs.copyFile(from, to);
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writeOps.push(promise);
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return promise;
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};
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const writeOps = [];
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/******************************************************************************/
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const ruleResources = [];
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const rulesetDetails = [];
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const scriptletStats = new Map();
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const genericDetails = new Map();
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const requiredRedirectResources = new Set();
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let networkBad = new Set();
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// This will be used to sign our inserted `!#trusted on` directives
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const secret = createHash('sha256').update(randomBytes(16)).digest('hex').slice(0,16);
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log(`Secret: ${secret}`, false);
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/******************************************************************************/
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const restrSeparator = '(?:[^%.0-9a-z_-]|$)';
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const rePatternFromUrlFilter = s => {
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let anchor = 0b000;
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if ( s.startsWith('||') ) {
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anchor = 0b100;
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s = s.slice(2);
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} else if ( s.startsWith('|') ) {
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anchor = 0b010;
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s = s.slice(1);
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}
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if ( s.endsWith('|') ) {
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anchor |= 0b001;
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s = s.slice(0, -1);
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}
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let reStr = s.replace(rePatternFromUrlFilter.rePlainChars, '\\$&')
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.replace(rePatternFromUrlFilter.reSeparators, restrSeparator)
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.replace(rePatternFromUrlFilter.reDanglingAsterisks, '')
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.replace(rePatternFromUrlFilter.reAsterisks, '\\S*?');
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if ( anchor & 0b100 ) {
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reStr = (
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reStr.startsWith('\\.') ?
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rePatternFromUrlFilter.restrHostnameAnchor2 :
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rePatternFromUrlFilter.restrHostnameAnchor1
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) + reStr;
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} else if ( anchor & 0b010 ) {
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reStr = '^' + reStr;
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}
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if ( anchor & 0b001 ) {
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reStr += '$';
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}
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return reStr;
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};
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rePatternFromUrlFilter.rePlainChars = /[.+?${}()|[\]\\]/g;
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rePatternFromUrlFilter.reSeparators = /\^/g;
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rePatternFromUrlFilter.reDanglingAsterisks = /^\*+|\*+$/g;
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rePatternFromUrlFilter.reAsterisks = /\*+/g;
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rePatternFromUrlFilter.restrHostnameAnchor1 = '^[a-z-]+://(?:[^/?#]+\\.)?';
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rePatternFromUrlFilter.restrHostnameAnchor2 = '^[a-z-]+://(?:[^/?#]+)?';
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/******************************************************************************/
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async function fetchList(assetDetails) {
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// Remember fetched URLs
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const fetchedURLs = new Set();
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// Fetch list and expand `!#include` directives
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let parts = assetDetails.urls.map(url => ({ url }));
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while ( parts.every(v => typeof v === 'string') === false ) {
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const newParts = [];
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for ( const part of parts ) {
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if ( typeof part === 'string' ) {
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newParts.push(part);
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continue;
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}
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if ( fetchedURLs.has(part.url) ) {
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newParts.push('');
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continue;
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}
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fetchedURLs.add(part.url);
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if (
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assetDetails.trusted ||
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part.url.startsWith('https://ublockorigin.github.io/uAssets/filters/')
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) {
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newParts.push(`!#trusted on ${secret}`);
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}
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newParts.push(
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fetchText(part.url, cacheDir).then(details => {
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const { url, error } = details;
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if ( error !== undefined ) { return details; }
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const content = details.content.trim();
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if ( /* content === '' || */ /^<.*>$/.test(content) ) {
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return { url, error: `Bad content: ${url}` };
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}
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return { url, content };
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})
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);
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newParts.push(`!#trusted off ${secret}`);
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}
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if ( parts.some(v => typeof v === 'object' && v.error) ) { return; }
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parts = await Promise.all(newParts);
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parts = sfp.utils.preparser.expandIncludes(parts, env);
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}
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const text = parts.join('\n');
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if ( text === '' ) {
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log('No filterset found', false);
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}
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return text;
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}
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/******************************************************************************/
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const isUnsupported = rule =>
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rule._error !== undefined;
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const isRegex = rule =>
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rule.condition !== undefined &&
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rule.condition.regexFilter !== undefined;
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const isGood = rule =>
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isUnsupported(rule) === false &&
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/^(allow|block|redirect|modifyHeaders|allowAllRequests)$/.test(rule.action?.type);
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const isURLSkip = rule =>
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isUnsupported(rule) === false &&
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rule.action !== undefined &&
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rule.action.type === 'urlskip';
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/******************************************************************************/
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async function patchRuleset(ruleset) {
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return import(`./${platform}/patch-ruleset.js`).then(module => {
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return module.patchRuleset(ruleset)
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}).catch(( ) => {
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return ruleset;
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});
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}
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/******************************************************************************/
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// Two distinct hostnames:
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// www.example.com
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// example.com
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// Can be reduced to a single one:
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// example.com
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// Since if example.com matches, then www.example.com (or any other subdomain
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// of example.com) will always match.
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function pruneHostnameArray(hostnames) {
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const rootMap = new Map();
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for ( const hostname of hostnames ) {
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const labels = hostname.split('.');
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let currentMap = rootMap;
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let i = labels.length;
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while ( i-- ) {
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const label = labels[i];
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let nextMap = currentMap.get(label);
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if ( nextMap === null ) { break; }
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if ( nextMap === undefined ) {
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if ( i === 0 ) {
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currentMap.set(label, (nextMap = null));
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} else {
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currentMap.set(label, (nextMap = new Map()));
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}
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} else if ( i === 0 ) {
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currentMap.set(label, null);
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}
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currentMap = nextMap;
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}
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}
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const assemble = (currentMap, currentHostname, out) => {
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for ( const [ label, nextMap ] of currentMap ) {
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const nextHostname = currentHostname === ''
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? label
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: `${label}.${currentHostname}`;
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if ( nextMap === null ) {
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out.push(nextHostname);
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} else {
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assemble(nextMap, nextHostname, out);
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}
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}
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return out;
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};
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return assemble(rootMap, '', []);
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}
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/*******************************************************************************
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*
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* For large rulesets, one rule per line for compromise between size and
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* readability. This also means that the number of lines in resulting file
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* representative of the number of rules in the ruleset.
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*
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* */
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function toJSONRuleset(ruleset) {
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const nodupProps = [ 'domains', 'excludedDomains', 'requestDomains', 'excludedRequestDomains', 'initiatorDomains', 'excludedInitiatorDomains' ];
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for ( const { condition } of ruleset ) {
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if ( condition === undefined ) { continue; }
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for ( const prop of nodupProps ) {
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if ( condition[prop] === undefined ) { continue; }
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condition[prop] = Array.from(new Set(condition[prop]));
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}
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}
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const sortProps = [ 'requestDomains', 'initiatorDomains', 'domains' ];
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ruleset.sort((a, b) => {
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let aLen = 0, bLen = 0;
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for ( const prop of sortProps ) {
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aLen += a.condition[prop]?.length ?? 0;
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bLen += b.condition[prop]?.length ?? 0;
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}
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return bLen - aLen;
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});
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const replacer = (k, v) => {
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if ( k.startsWith('_') ) { return; }
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if ( Array.isArray(v) ) {
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return v.sort();
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}
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if ( v instanceof Object ) {
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const sorted = {};
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for ( const kk of Object.keys(v).sort() ) {
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sorted[kk] = v[kk];
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}
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return sorted;
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}
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return v;
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};
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const indent = ruleset.length > 10 ? undefined : 1;
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const out = [];
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let id = 1;
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for ( const rule of ruleset ) {
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rule.id = id++;
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out.push(JSON.stringify(rule, replacer, indent));
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}
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return `[\n${out.join(',\n')}\n]\n`;
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}
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/******************************************************************************/
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function toStrictBlockRule(rule, out) {
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if ( rule.action.type !== 'block' ) { return; }
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const { condition } = rule;
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if ( condition === undefined ) { return; }
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if ( condition.domainType ) { return; }
|
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if ( condition.excludedResourceTypes ) { return; }
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if ( condition.requestMethods ) { return; }
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if ( condition.excludedRequestMethods ) { return; }
|
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if ( condition.responseHeaders ) { return; }
|
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if ( condition.excludedResponseHeaders ) { return; }
|
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if ( condition.initiatorDomains ) { return; }
|
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if ( condition.excludedInitiatorDomains ) { return; }
|
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const { resourceTypes } = condition;
|
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if ( resourceTypes === undefined ) {
|
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if ( condition.requestDomains === undefined ) { return; }
|
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} else if ( resourceTypes.includes('main_frame') === false ) {
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return;
|
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}
|
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let regexFilter;
|
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if ( condition.urlFilter ) {
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regexFilter = rePatternFromUrlFilter(condition.urlFilter);
|
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} else if ( condition.regexFilter ) {
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regexFilter = condition.regexFilter;
|
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} else {
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regexFilter = '^https?://.*';
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}
|
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if ( regexFilter.startsWith('^') === false ) {
|
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regexFilter = `^.*${regexFilter}`;
|
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}
|
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if (
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regexFilter.endsWith('$') === false &&
|
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regexFilter.endsWith('.*') === false &&
|
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regexFilter.endsWith('.+') === false
|
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) {
|
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regexFilter = `${regexFilter}.*`;
|
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}
|
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const strictBlockRule = out.get(regexFilter) || {
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action: {
|
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type: 'redirect',
|
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redirect: {
|
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regexSubstitution: `/strictblock.html#\\0`,
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},
|
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},
|
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condition: {
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regexFilter,
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resourceTypes: [ 'main_frame' ],
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},
|
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priority: 29,
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};
|
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if ( condition.requestDomains ) {
|
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strictBlockRule.condition.requestDomains ??= [];
|
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strictBlockRule.condition.requestDomains.push(...condition.requestDomains);
|
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}
|
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if ( condition.excludedRequestDomains ) {
|
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strictBlockRule.condition.excludedRequestDomains ??= [];
|
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strictBlockRule.condition.excludedRequestDomains.push(...condition.excludedRequestDomains);
|
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}
|
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out.set(regexFilter, strictBlockRule);
|
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}
|
|
toStrictBlockRule.ruleId = 1;
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|
|
/******************************************************************************/
|
|
|
|
async function processNetworkFilters(assetDetails, network) {
|
|
const { ruleset: rules } = network;
|
|
log(`Input filter count: ${network.filterCount}`);
|
|
log(`\tAccepted filter count: ${network.acceptedFilterCount}`);
|
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log(`\tRejected filter count: ${network.rejectedFilterCount}`);
|
|
log(`Output rule count: ${rules.length}`);
|
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|
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// Minimize requestDomains arrays
|
|
for ( const rule of rules ) {
|
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const condition = rule.condition;
|
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if ( condition === undefined ) { continue; }
|
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const requestDomains = condition.requestDomains;
|
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if ( requestDomains === undefined ) { continue; }
|
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const beforeCount = requestDomains.length;
|
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condition.requestDomains = pruneHostnameArray(requestDomains);
|
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const afterCount = condition.requestDomains.length;
|
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if ( afterCount !== beforeCount ) {
|
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log(`\tPruning requestDomains: from ${beforeCount} to ${afterCount}`);
|
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}
|
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}
|
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|
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// Add native DNR ruleset if present
|
|
if ( assetDetails.dnrURL ) {
|
|
const result = await fetchText(assetDetails.dnrURL, cacheDir);
|
|
for ( const rule of JSON.parse(result.content) ) {
|
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rules.push(rule);
|
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}
|
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}
|
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|
|
const staticRules = await patchRuleset(
|
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rules.filter(rule => isGood(rule) && isRegex(rule) === false)
|
|
);
|
|
log(`\tStatic rules: ${staticRules.length}`);
|
|
log(staticRules
|
|
.filter(rule => Array.isArray(rule._warning))
|
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.map(rule => rule._warning.map(v => `\t\t${v}`))
|
|
.join('\n'), true
|
|
);
|
|
|
|
const regexRules = await patchRuleset(
|
|
rules.filter(rule => isGood(rule) && isRegex(rule))
|
|
);
|
|
log(`\tMaybe good (regexes): ${regexRules.length}`);
|
|
|
|
staticRules.forEach(rule => {
|
|
if ( rule.action.redirect?.extensionPath === undefined ) { return; }
|
|
requiredRedirectResources.add(
|
|
rule.action.redirect.extensionPath.replace(/^\/+/, '')
|
|
);
|
|
});
|
|
|
|
const urlskips = new Map();
|
|
for ( const rule of rules ) {
|
|
if ( isURLSkip(rule) === false ) { continue; }
|
|
if ( rule.__modifierAction !== 0 ) { continue; }
|
|
const { condition } = rule;
|
|
if ( condition.resourceTypes ) {
|
|
if ( condition.resourceTypes.includes('main_frame') === false ) {
|
|
continue;
|
|
}
|
|
}
|
|
const { urlFilter, regexFilter, requestDomains } = condition;
|
|
let re;
|
|
if ( urlFilter !== undefined ) {
|
|
re = rePatternFromUrlFilter(urlFilter);
|
|
} else if ( regexFilter !== undefined ) {
|
|
re = regexFilter;
|
|
} else {
|
|
re = '^';
|
|
}
|
|
const rawSteps = rule.__modifierValue;
|
|
const steps = rawSteps.includes(' ') && rawSteps.split(/ +/) || [ rawSteps ];
|
|
const keyEntry = {
|
|
re,
|
|
c: condition.isUrlFilterCaseSensitive,
|
|
steps,
|
|
}
|
|
const key = JSON.stringify(keyEntry);
|
|
let actualEntry = urlskips.get(key);
|
|
if ( actualEntry === undefined ) {
|
|
urlskips.set(key, keyEntry);
|
|
actualEntry = keyEntry;
|
|
}
|
|
if ( requestDomains !== undefined ) {
|
|
if ( actualEntry.hostnames === undefined ) {
|
|
actualEntry.hostnames = [];
|
|
}
|
|
actualEntry.hostnames.push(...requestDomains);
|
|
}
|
|
}
|
|
log(`\turlskip=: ${urlskips.size}`);
|
|
|
|
const bad = rules.filter(rule =>
|
|
isUnsupported(rule)
|
|
);
|
|
log(`\tUnsupported: ${bad.length}`);
|
|
log(bad.map(rule => rule._error.map(v => `\t\t${v}`)).join('\n'), true);
|
|
|
|
writeFile(`${rulesetDir}/main/${assetDetails.id}.json`,
|
|
toJSONRuleset(staticRules)
|
|
);
|
|
|
|
if ( regexRules.length !== 0 ) {
|
|
writeFile(`${rulesetDir}/regex/${assetDetails.id}.json`,
|
|
toJSONRuleset(regexRules)
|
|
);
|
|
}
|
|
|
|
const strictBlocked = new Map();
|
|
for ( const rule of staticRules ) {
|
|
toStrictBlockRule(rule, strictBlocked);
|
|
}
|
|
if ( strictBlocked.size !== 0 ) {
|
|
mergeRules(strictBlocked, 'requestDomains');
|
|
writeFile(`${rulesetDir}/strictblock/${assetDetails.id}.json`,
|
|
toJSONRuleset(Array.from(strictBlocked.values()))
|
|
);
|
|
}
|
|
|
|
if ( urlskips.size !== 0 ) {
|
|
writeFile(`${rulesetDir}/urlskip/${assetDetails.id}.json`,
|
|
JSON.stringify(Array.from(urlskips.values()), null, 1)
|
|
);
|
|
}
|
|
|
|
return {
|
|
total: rules.length,
|
|
plain: staticRules.length,
|
|
rejected: bad.length,
|
|
regex: regexRules.length,
|
|
strictblock: strictBlocked.size,
|
|
urlskip: urlskips.size,
|
|
};
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
// TODO: unify css/scriptlet processing code since now css styles are
|
|
// injected using scriptlet injection.
|
|
|
|
// Load all available scriptlets into a key-val map, where the key is the
|
|
// scriptlet token, and val is the whole content of the file.
|
|
|
|
let scriptletsMapPromise;
|
|
|
|
function loadAllSourceScriptlets() {
|
|
if ( scriptletsMapPromise !== undefined ) {
|
|
return scriptletsMapPromise;
|
|
}
|
|
|
|
scriptletsMapPromise = fs.readdir('./scriptlets').then(files => {
|
|
const readTemplateFile = file =>
|
|
fs.readFile(`./scriptlets/${file}`, { encoding: 'utf8' })
|
|
.then(text => ({ file, text }));
|
|
const readPromises = [];
|
|
for ( const file of files ) {
|
|
readPromises.push(readTemplateFile(file));
|
|
}
|
|
return Promise.all(readPromises).then(results => {
|
|
const originalScriptletMap = new Map();
|
|
for ( const details of results ) {
|
|
originalScriptletMap.set(
|
|
details.file.replace('.template.js', '')
|
|
.replace('.template.css', ''),
|
|
details.text
|
|
);
|
|
}
|
|
return originalScriptletMap;
|
|
});
|
|
});
|
|
|
|
return scriptletsMapPromise;
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
// http://www.cse.yorku.ca/~oz/hash.html#djb2
|
|
// Must mirror content script surveyor's version
|
|
|
|
async function processGenericCosmeticFilters(
|
|
assetDetails,
|
|
selectorList,
|
|
exceptionList,
|
|
declarativeMap
|
|
) {
|
|
const exceptionSet = new Set(
|
|
exceptionList &&
|
|
exceptionList.filter(a => a.key !== undefined).map(a => a.selector)
|
|
);
|
|
|
|
const genericSelectorMap = new Map();
|
|
if ( selectorList ) {
|
|
for ( const { key, selector } of selectorList ) {
|
|
if ( key === undefined ) { continue; }
|
|
if ( exceptionSet.has(selector) ) { continue; }
|
|
const type = key.charCodeAt(0);
|
|
const hash = hashFromStr(type, key.slice(1));
|
|
const selectors = genericSelectorMap.get(hash);
|
|
if ( selectors === undefined ) {
|
|
genericSelectorMap.set(hash, selector)
|
|
} else {
|
|
genericSelectorMap.set(hash, `${selectors},\n${selector}`)
|
|
}
|
|
}
|
|
}
|
|
|
|
// Specific exceptions
|
|
const genericExceptionSieve = new Set();
|
|
const genericExceptionMap = new Map();
|
|
if ( declarativeMap ) {
|
|
for ( const [ exception, details ] of declarativeMap ) {
|
|
if ( details.rejected ) { continue; }
|
|
if ( details.key === undefined ) { continue; }
|
|
if ( details.matches !== undefined ) { continue; }
|
|
if ( details.excludeMatches === undefined ) { continue; }
|
|
const type = details.key.charCodeAt(0);
|
|
const hash = hashFromStr(type, details.key.slice(1));
|
|
genericExceptionSieve.add(hash);
|
|
for ( const hn of details.excludeMatches ) {
|
|
const exceptions = genericExceptionMap.get(hn);
|
|
if ( exceptions === undefined ) {
|
|
genericExceptionMap.set(hn, exception);
|
|
} else {
|
|
genericExceptionMap.set(hn, `${exceptions}\n${exception}`);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if ( genericSelectorMap.size === 0 ) {
|
|
if ( genericExceptionMap.size === 0 ) { return 0; }
|
|
}
|
|
|
|
const originalScriptletMap = await loadAllSourceScriptlets();
|
|
let patchedScriptlet = originalScriptletMap.get('css-generic').replace(
|
|
'$rulesetId$',
|
|
assetDetails.id
|
|
);
|
|
patchedScriptlet = safeReplace(patchedScriptlet,
|
|
/\bself\.\$genericSelectorMap\$/,
|
|
`${JSON.stringify(genericSelectorMap, scriptletJsonReplacer)}`
|
|
);
|
|
patchedScriptlet = safeReplace(patchedScriptlet,
|
|
/\bself\.\$genericExceptionSieve\$/,
|
|
`${JSON.stringify(genericExceptionSieve, scriptletJsonReplacer)}`
|
|
);
|
|
patchedScriptlet = safeReplace(patchedScriptlet,
|
|
/\bself\.\$genericExceptionMap\$/,
|
|
`${JSON.stringify(genericExceptionMap, scriptletJsonReplacer)}`
|
|
);
|
|
|
|
writeFile(`${scriptletDir}/generic/${assetDetails.id}.js`,
|
|
patchedScriptlet
|
|
);
|
|
|
|
log(`CSS-generic: ${genericExceptionSieve.size} specific CSS exceptions`);
|
|
log(`CSS-generic: ${genericSelectorMap.size} plain CSS selectors`);
|
|
|
|
return genericSelectorMap.size + genericExceptionSieve.size;
|
|
}
|
|
|
|
const hashFromStr = (type, s) => {
|
|
const len = s.length;
|
|
const step = len + 7 >>> 3;
|
|
let hash = (type << 5) + type ^ len;
|
|
for ( let i = 0; i < len; i += step ) {
|
|
hash = (hash << 5) + hash ^ s.charCodeAt(i);
|
|
}
|
|
return hash & 0xFFFFFF;
|
|
};
|
|
|
|
/******************************************************************************/
|
|
|
|
async function processGenericHighCosmeticFilters(
|
|
assetDetails,
|
|
genericSelectorList,
|
|
genericExceptionList
|
|
) {
|
|
if ( genericSelectorList === undefined ) { return 0; }
|
|
const genericSelectorSet = new Set(
|
|
genericSelectorList
|
|
.filter(a => a.key === undefined)
|
|
.map(a => a.selector)
|
|
);
|
|
// https://github.com/uBlockOrigin/uBOL-home/issues/365
|
|
if ( genericExceptionList ) {
|
|
for ( const entry of genericExceptionList ) {
|
|
if ( entry.key !== undefined ) { continue; }
|
|
globalHighlyGenericExceptionSet.add(entry.selector);
|
|
}
|
|
}
|
|
for ( const selector of globalHighlyGenericExceptionSet ) {
|
|
if ( genericSelectorSet.has(selector) === false ) { continue; }
|
|
genericSelectorSet.delete(selector);
|
|
log(`\tRemoving excepted highly generic filter ##${selector}`);
|
|
}
|
|
if ( genericSelectorSet.size === 0 ) { return 0; }
|
|
const selectorLists = Array.from(genericSelectorSet).sort().join(',\n');
|
|
const originalScriptletMap = await loadAllSourceScriptlets();
|
|
|
|
let patchedScriptlet = originalScriptletMap.get('css-generichigh').replace(
|
|
'$rulesetId$',
|
|
assetDetails.id
|
|
);
|
|
patchedScriptlet = safeReplace(patchedScriptlet,
|
|
/\$selectorList\$/,
|
|
selectorLists
|
|
);
|
|
|
|
writeFile(`${scriptletDir}/generichigh/${assetDetails.id}.css`,
|
|
patchedScriptlet
|
|
);
|
|
|
|
log(`CSS-generic-high: ${genericSelectorSet.size} plain CSS selectors`);
|
|
|
|
return genericSelectorSet.size;
|
|
}
|
|
|
|
const globalHighlyGenericExceptionSet = new Set();
|
|
|
|
/******************************************************************************/
|
|
|
|
// This merges selectors which are used by the same hostnames
|
|
|
|
function groupSelectorsByHostnames(mapin) {
|
|
if ( mapin === undefined ) { return []; }
|
|
const merged = new Map();
|
|
for ( const [ selector, details ] of mapin ) {
|
|
if ( details.rejected ) { continue; }
|
|
const json = JSON.stringify(details);
|
|
let entries = merged.get(json);
|
|
if ( entries === undefined ) {
|
|
entries = new Set();
|
|
merged.set(json, entries);
|
|
}
|
|
entries.add(selector);
|
|
}
|
|
const out = [];
|
|
for ( const [ json, entries ] of merged ) {
|
|
const details = JSON.parse(json);
|
|
details.selectors = Array.from(entries).sort();
|
|
out.push(details);
|
|
}
|
|
return out;
|
|
}
|
|
|
|
// This merges hostnames which have the same set of selectors.
|
|
//
|
|
// Also, we sort the hostnames to increase likelihood that selector with
|
|
// same hostnames will end up in same generated scriptlet.
|
|
|
|
function groupHostnamesBySelectors(arrayin) {
|
|
const contentMap = new Map();
|
|
for ( const entry of arrayin ) {
|
|
const id = uidint32(JSON.stringify(entry.selectors));
|
|
let details = contentMap.get(id);
|
|
if ( details === undefined ) {
|
|
details = { a: entry.selectors };
|
|
contentMap.set(id, details);
|
|
}
|
|
if ( entry.matches !== undefined ) {
|
|
if ( details.y === undefined ) {
|
|
details.y = new Set();
|
|
}
|
|
for ( const hn of entry.matches ) {
|
|
details.y.add(hn);
|
|
}
|
|
}
|
|
if ( entry.excludeMatches !== undefined ) {
|
|
if ( details.n === undefined ) {
|
|
details.n = new Set();
|
|
}
|
|
for ( const hn of entry.excludeMatches ) {
|
|
details.n.add(hn);
|
|
}
|
|
}
|
|
}
|
|
const out = Array.from(contentMap).map(a => [
|
|
a[0], {
|
|
a: a[1].a,
|
|
y: a[1].y ? Array.from(a[1].y) : undefined,
|
|
n: a[1].n ? Array.from(a[1].n) : undefined,
|
|
}
|
|
]);
|
|
return out;
|
|
}
|
|
|
|
const scriptletHostnameToIdMap = (hostnames, id, map) => {
|
|
for ( const hn of hostnames ) {
|
|
const existing = map.get(hn);
|
|
if ( existing === undefined ) {
|
|
map.set(hn, id);
|
|
} else if ( Array.isArray(existing) ) {
|
|
existing.push(id);
|
|
} else {
|
|
map.set(hn, [ existing, id ]);
|
|
}
|
|
}
|
|
};
|
|
|
|
const scriptletJsonReplacer = (k, v) => {
|
|
if ( k === 'n' ) {
|
|
if ( v === undefined || v.size === 0 ) { return; }
|
|
return Array.from(v);
|
|
}
|
|
if ( v instanceof Set || v instanceof Map ) {
|
|
if ( v.size === 0 ) { return; }
|
|
return Array.from(v);
|
|
}
|
|
return v;
|
|
};
|
|
|
|
/******************************************************************************/
|
|
|
|
function argsMap2List(argsMap, hostnamesMap) {
|
|
const argsList = [ '' ];
|
|
const indexMap = new Map();
|
|
for ( const [ id, details ] of argsMap ) {
|
|
indexMap.set(id, argsList.length);
|
|
argsList.push(details);
|
|
}
|
|
const argsSeqs = [ 0 ];
|
|
const argsSeqsIndices = new Map();
|
|
for ( const [ hn, ids ] of hostnamesMap ) {
|
|
const seqKey = JSON.stringify(ids);
|
|
if ( argsSeqsIndices.has(seqKey) ) {
|
|
hostnamesMap.set(hn, argsSeqsIndices.get(seqKey));
|
|
continue;
|
|
}
|
|
const seqIndex = argsSeqs.length;
|
|
argsSeqsIndices.set(seqKey, seqIndex);
|
|
hostnamesMap.set(hn, seqIndex);
|
|
if ( typeof ids === 'number' ) {
|
|
argsSeqs.push(indexMap.get(ids));
|
|
continue;
|
|
}
|
|
for ( let i = 0; i < ids.length; i++ ) {
|
|
argsSeqs.push(-indexMap.get(ids[i]));
|
|
}
|
|
argsSeqs[argsSeqs.length-1] = -argsSeqs[argsSeqs.length-1];
|
|
}
|
|
return { argsList, argsSeqs };
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
async function processCosmeticFilters(assetDetails, mapin) {
|
|
if ( mapin === undefined ) { return 0; }
|
|
if ( mapin.size === 0 ) { return 0; }
|
|
|
|
const domainBasedEntries = groupHostnamesBySelectors(
|
|
groupSelectorsByHostnames(mapin)
|
|
);
|
|
// We do not want more than n CSS files per subscription, so we will
|
|
// group multiple unrelated selectors in the same file, and distinct
|
|
// css declarations will be injected programmatically according to the
|
|
// hostname of the current document.
|
|
//
|
|
// The cosmetic filters will be injected programmatically as content
|
|
// script and the decisions to activate the cosmetic filters will be
|
|
// done at injection time according to the document's hostname.
|
|
const generatedFiles = [];
|
|
|
|
const argsMap = domainBasedEntries.map(entry => [
|
|
entry[0],
|
|
entry[1].a ? entry[1].a.join('\n') : undefined,
|
|
]);
|
|
const hostnamesMap = new Map();
|
|
let hasEntities = false;
|
|
for ( const [ id, details ] of domainBasedEntries ) {
|
|
if ( details.y ) {
|
|
scriptletHostnameToIdMap(details.y, id, hostnamesMap);
|
|
hasEntities ||= details.y.some(a => a.endsWith('.*'));
|
|
}
|
|
if ( details.n ) {
|
|
scriptletHostnameToIdMap(details.n.map(a => `~${a}`), id, hostnamesMap);
|
|
hasEntities ||= details.n.some(a => a.endsWith('.*'));
|
|
}
|
|
}
|
|
const { argsList, argsSeqs } = argsMap2List(argsMap, hostnamesMap);
|
|
|
|
const originalScriptletMap = await loadAllSourceScriptlets();
|
|
let patchedScriptlet = originalScriptletMap.get('css-specific').replace(
|
|
'$rulesetId$',
|
|
assetDetails.id
|
|
);
|
|
patchedScriptlet = safeReplace(patchedScriptlet,
|
|
/\bself\.\$argsList\$/,
|
|
`${JSON.stringify(argsList, scriptletJsonReplacer)}`
|
|
);
|
|
patchedScriptlet = safeReplace(patchedScriptlet,
|
|
/\bself\.\$argsSeqs\$/,
|
|
`${JSON.stringify(argsSeqs, scriptletJsonReplacer)}`
|
|
);
|
|
patchedScriptlet = safeReplace(patchedScriptlet,
|
|
/\bself\.\$hostnamesMap\$/,
|
|
`${JSON.stringify(hostnamesMap, scriptletJsonReplacer)}`
|
|
);
|
|
patchedScriptlet = safeReplace(patchedScriptlet,
|
|
'self.$hasEntities$',
|
|
JSON.stringify(hasEntities)
|
|
);
|
|
writeFile(`${scriptletDir}/specific/${assetDetails.id}.js`, patchedScriptlet);
|
|
generatedFiles.push(`${assetDetails.id}`);
|
|
|
|
if ( generatedFiles.length !== 0 ) {
|
|
log(`CSS-specific: ${mapin.size} distinct filters`);
|
|
log(`\tCombined into ${hostnamesMap.size} distinct hostnames`);
|
|
}
|
|
|
|
return hostnamesMap.size;
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
async function processProceduralCosmeticFilters(assetDetails, mapin) {
|
|
if ( mapin === undefined ) { return 0; }
|
|
if ( mapin.size === 0 ) { return 0; }
|
|
|
|
const procedurals = new Map();
|
|
mapin.forEach((details, jsonSelector) => {
|
|
procedurals.set(jsonSelector, details);
|
|
});
|
|
if ( procedurals.size === 0 ) { return 0; }
|
|
|
|
const contentArray = groupHostnamesBySelectors(
|
|
groupSelectorsByHostnames(procedurals)
|
|
);
|
|
|
|
const argsMap = contentArray.map(entry => [
|
|
entry[0],
|
|
entry[1].a,
|
|
]);
|
|
const hostnamesMap = new Map();
|
|
let hasEntities = false;
|
|
for ( const [ id, details ] of contentArray ) {
|
|
if ( details.y ) {
|
|
scriptletHostnameToIdMap(details.y, id, hostnamesMap);
|
|
hasEntities ||= details.y.some(a => a.endsWith('.*'));
|
|
}
|
|
if ( details.n ) {
|
|
scriptletHostnameToIdMap(details.n.map(a => `~${a}`), id, hostnamesMap);
|
|
hasEntities ||= details.n.some(a => a.endsWith('.*'));
|
|
}
|
|
}
|
|
const { argsList, argsSeqs } = argsMap2List(argsMap, hostnamesMap);
|
|
const argsListAfter = [];
|
|
for ( const a of argsList ) {
|
|
const aAfter = [];
|
|
for ( let b of a ) {
|
|
aAfter.push(JSON.parse(b));
|
|
}
|
|
argsListAfter.push(JSON.stringify(aAfter));
|
|
}
|
|
const originalScriptletMap = await loadAllSourceScriptlets();
|
|
let patchedScriptlet = originalScriptletMap.get('css-procedural').replace(
|
|
'$rulesetId$',
|
|
assetDetails.id
|
|
);
|
|
patchedScriptlet = safeReplace(patchedScriptlet,
|
|
/\bself\.\$argsList\$/,
|
|
`${JSON.stringify(argsListAfter, scriptletJsonReplacer)}`
|
|
);
|
|
patchedScriptlet = safeReplace(patchedScriptlet,
|
|
/\bself\.\$argsSeqs\$/,
|
|
`${JSON.stringify(argsSeqs, scriptletJsonReplacer)}`
|
|
);
|
|
patchedScriptlet = safeReplace(patchedScriptlet,
|
|
/\bself\.\$hostnamesMap\$/,
|
|
`${JSON.stringify(hostnamesMap, scriptletJsonReplacer)}`
|
|
);
|
|
patchedScriptlet = safeReplace(patchedScriptlet,
|
|
'self.$hasEntities$',
|
|
JSON.stringify(hasEntities)
|
|
);
|
|
writeFile(`${scriptletDir}/procedural/${assetDetails.id}.js`, patchedScriptlet);
|
|
|
|
if ( contentArray.length !== 0 ) {
|
|
log(`Procedural-related distinct filters: ${procedurals.size} distinct combined selectors`);
|
|
log(`\tCombined into ${hostnamesMap.size} distinct hostnames`);
|
|
}
|
|
|
|
return hostnamesMap.size;
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
async function processScriptletFilters(assetDetails, mapin) {
|
|
if ( mapin === undefined ) { return 0; }
|
|
if ( mapin.size === 0 ) { return 0; }
|
|
|
|
makeScriptlet.init();
|
|
|
|
for ( const details of mapin.values() ) {
|
|
makeScriptlet.compile(assetDetails, details);
|
|
}
|
|
const stats = await makeScriptlet.commit(
|
|
assetDetails.id,
|
|
`${scriptletDir}/scriptlet`,
|
|
writeFile
|
|
);
|
|
if ( stats.length !== 0 ) {
|
|
scriptletStats.set(assetDetails.id, stats);
|
|
}
|
|
makeScriptlet.reset();
|
|
return stats.length;
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
async function rulesetFromURLs(assetDetails) {
|
|
log('============================');
|
|
log(`Listset for '${assetDetails.id}':`);
|
|
|
|
if ( assetDetails.text === undefined && assetDetails.urls.length !== 0 ) {
|
|
const text = await fetchList(assetDetails);
|
|
if ( text === undefined ) {
|
|
process.exit(1);
|
|
}
|
|
assetDetails.text = text;
|
|
} else {
|
|
assetDetails.text = '';
|
|
}
|
|
|
|
if ( Array.isArray(assetDetails.filters) && assetDetails.filters.length ) {
|
|
const extra = [
|
|
`!#trusted on ${secret}`,
|
|
...assetDetails.filters,
|
|
`!#trusted off ${secret}`,
|
|
assetDetails.text,
|
|
];
|
|
assetDetails.text = extra.join('\n').trim();
|
|
}
|
|
|
|
if ( assetDetails.text === '' ) { return; }
|
|
|
|
const extensionPaths = [];
|
|
for ( const [ fname, details ] of redirectResourcesMap ) {
|
|
const path = `/web_accessible_resources/${fname}`;
|
|
extensionPaths.push([ fname, path ]);
|
|
if ( details.alias === undefined ) { continue; }
|
|
if ( typeof details.alias === 'string' ) {
|
|
extensionPaths.push([ details.alias, path ]);
|
|
continue;
|
|
}
|
|
if ( Array.isArray(details.alias) === false ) { continue; }
|
|
for ( const alias of details.alias ) {
|
|
extensionPaths.push([ alias, path ]);
|
|
}
|
|
}
|
|
|
|
const results = await dnrRulesetFromRawLists(
|
|
[ { name: assetDetails.id, text: assetDetails.text } ],
|
|
{ env, extensionPaths, secret, networkBad }
|
|
);
|
|
networkBad = results.networkBad;
|
|
|
|
// Release memory used by filter list content
|
|
assetDetails.text = undefined;
|
|
|
|
const netStats = await processNetworkFilters(
|
|
assetDetails,
|
|
results.network
|
|
);
|
|
|
|
// Split cosmetic filters into two groups: declarative and procedural
|
|
const declarativeCosmetic = new Map();
|
|
const proceduralCosmetic = new Map();
|
|
const rejectedCosmetic = [];
|
|
if ( results.specificCosmetic ) {
|
|
for ( const [ selector, details ] of results.specificCosmetic ) {
|
|
if ( details.rejected ) {
|
|
rejectedCosmetic.push(selector);
|
|
continue;
|
|
}
|
|
if ( selector.startsWith('{') === false ) {
|
|
declarativeCosmetic.set(selector, details);
|
|
continue;
|
|
}
|
|
const parsed = JSON.parse(selector);
|
|
parsed.raw = undefined;
|
|
proceduralCosmetic.set(JSON.stringify(parsed), details);
|
|
}
|
|
}
|
|
if ( rejectedCosmetic.length !== 0 ) {
|
|
log(`Rejected cosmetic filters: ${rejectedCosmetic.length}`);
|
|
log(rejectedCosmetic.map(line => `\t${line}`).join('\n'), true);
|
|
}
|
|
|
|
const genericDetailsForRuleset = {};
|
|
if (
|
|
Array.isArray(results.network.generichideExclusions) &&
|
|
results.network.generichideExclusions.length !== 0
|
|
) {
|
|
genericDetailsForRuleset.unhide = results.network.generichideExclusions
|
|
.filter(hn => hn.endsWith('.*') === false)
|
|
.sort();
|
|
}
|
|
if (
|
|
Array.isArray(results.network.generichideInclusions) &&
|
|
results.network.generichideInclusions.length !== 0
|
|
) {
|
|
genericDetailsForRuleset.hide = results.network.generichideInclusions
|
|
.filter(hn => hn.endsWith('.*') === false)
|
|
.sort();
|
|
}
|
|
if ( genericDetailsForRuleset.unhide || genericDetailsForRuleset.hide ) {
|
|
genericDetails.set(assetDetails.id, genericDetailsForRuleset);
|
|
}
|
|
|
|
const genericCosmeticStats = await processGenericCosmeticFilters(
|
|
assetDetails,
|
|
results.genericCosmeticFilters,
|
|
results.genericCosmeticExceptions,
|
|
declarativeCosmetic
|
|
);
|
|
const genericHighCosmeticStats = await processGenericHighCosmeticFilters(
|
|
assetDetails,
|
|
results.genericCosmeticFilters,
|
|
results.genericCosmeticExceptions,
|
|
);
|
|
const specificCosmeticStats = await processCosmeticFilters(
|
|
assetDetails,
|
|
declarativeCosmetic
|
|
);
|
|
const proceduralStats = await processProceduralCosmeticFilters(
|
|
assetDetails,
|
|
proceduralCosmetic
|
|
);
|
|
const scriptletStats = await processScriptletFilters(
|
|
assetDetails,
|
|
results.scriptlet
|
|
);
|
|
|
|
rulesetDetails.push({
|
|
id: assetDetails.id,
|
|
name: assetDetails.name,
|
|
group: assetDetails.group,
|
|
parent: assetDetails.parent,
|
|
enabled: assetDetails.enabled,
|
|
lang: assetDetails.lang,
|
|
tags: assetDetails.tags,
|
|
homeURL: assetDetails.homeURL,
|
|
filters: {
|
|
total: results.network.filterCount,
|
|
accepted: results.network.acceptedFilterCount,
|
|
rejected: results.network.rejectedFilterCount,
|
|
},
|
|
rules: {
|
|
total: netStats.total,
|
|
plain: netStats.plain,
|
|
regex: netStats.regex,
|
|
removeparam: netStats.removeparam,
|
|
redirect: netStats.redirect,
|
|
modifyHeaders: netStats.modifyHeaders,
|
|
strictblock: netStats.strictblock,
|
|
urlskip: netStats.urlskip,
|
|
discarded: netStats.discarded,
|
|
rejected: netStats.rejected,
|
|
},
|
|
css: {
|
|
generic: genericCosmeticStats,
|
|
generichigh: genericHighCosmeticStats,
|
|
specific: specificCosmeticStats,
|
|
procedural: proceduralStats,
|
|
},
|
|
scriptlets: scriptletStats,
|
|
});
|
|
|
|
ruleResources.push({
|
|
id: assetDetails.id,
|
|
enabled: assetDetails.enabled,
|
|
path: `/rulesets/main/${assetDetails.id}.json`
|
|
});
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
async function main() {
|
|
|
|
let version = '';
|
|
{
|
|
const now = new Date();
|
|
const yearPart = now.getUTCFullYear();
|
|
const monthPart = now.getUTCMonth() + 1;
|
|
const dayPart = now.getUTCDate();
|
|
const hourPart = Math.floor(now.getUTCHours());
|
|
const minutePart = Math.floor(now.getUTCMinutes());
|
|
version = `${yearPart}.${monthPart*100+dayPart}.${hourPart*100+minutePart}`;
|
|
}
|
|
log(`Version: ${version}`, false);
|
|
|
|
// Get list of rulesets
|
|
const rulesets = await fs.readFile('rulesets.json', {
|
|
encoding: 'utf8'
|
|
}).then(text =>
|
|
JSON.parse(text)
|
|
);
|
|
|
|
for ( const ruleset of rulesets ) {
|
|
if ( ruleset.excludedPlatforms?.includes(platform) ) { continue; }
|
|
await rulesetFromURLs(ruleset);
|
|
}
|
|
|
|
logProgress('');
|
|
|
|
writeFile(`${rulesetDir}/ruleset-details.json`,
|
|
`${JSON.stringify(rulesetDetails, null, 1)}\n`
|
|
);
|
|
|
|
writeFile(`${rulesetDir}/scriptlet-details.json`,
|
|
`${JSON.stringify(scriptletStats, jsonSetMapReplacer, 1)}\n`
|
|
);
|
|
|
|
writeFile(`${rulesetDir}/generic-details.json`,
|
|
`${JSON.stringify(genericDetails, jsonSetMapReplacer, 1)}\n`
|
|
);
|
|
|
|
// Copy required redirect resources
|
|
for ( const path of requiredRedirectResources ) {
|
|
copyFile(`./${path}`, `${outputDir}/${path}`);
|
|
}
|
|
|
|
await Promise.all(writeOps);
|
|
|
|
// Patch manifest
|
|
// Get manifest content
|
|
const manifest = await fs.readFile(
|
|
`${outputDir}/manifest.json`,
|
|
{ encoding: 'utf8' }
|
|
).then(text =>
|
|
JSON.parse(text)
|
|
);
|
|
// Patch declarative_net_request key
|
|
manifest.declarative_net_request = { rule_resources: ruleResources };
|
|
// Patch web_accessible_resources key
|
|
manifest.web_accessible_resources = manifest.web_accessible_resources || [];
|
|
const web_accessible_resources = {
|
|
resources: Array.from(requiredRedirectResources).map(path => `${path}`),
|
|
matches: [ '<all_urls>' ],
|
|
};
|
|
if ( env.includes('chromium') && env.includes('safari') === false ) {
|
|
web_accessible_resources.use_dynamic_url = true;
|
|
}
|
|
manifest.web_accessible_resources.push(web_accessible_resources);
|
|
|
|
// Patch manifest version property
|
|
manifest.version = version;
|
|
// Commit changes
|
|
await fs.writeFile(`${outputDir}/manifest.json`,
|
|
JSON.stringify(manifest, null, 2) + '\n'
|
|
);
|
|
|
|
// Log results
|
|
const logContent = stdOutput.join('\n') + '\n';
|
|
await fs.writeFile(`${outputDir}/log.txt`, logContent);
|
|
}
|
|
|
|
main();
|
|
|
|
/******************************************************************************/
|