mirror of https://github.com/gorhill/uBlock.git
127 lines
4.8 KiB
JavaScript
127 lines
4.8 KiB
JavaScript
/*******************************************************************************
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uBlock Origin Lite - a comprehensive, MV3-compliant content blocker
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Copyright (C) 2024-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 { browser, dnr } from './ext.js';
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/******************************************************************************/
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export const isSideloaded = (( ) => {
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if ( dnr.onRuleMatchedDebug instanceof Object === false ) { return false; }
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const { id } = browser.runtime;
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// https://addons.mozilla.org/en-US/firefox/addon/ublock-origin-lite/
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if ( id === 'uBOLite@raymondhill.net' ) { return false; }
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// https://chromewebstore.google.com/detail/ddkjiahejlhfcafbddmgiahcphecmpfh
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if ( id === 'ddkjiahejlhfcafbddmgiahcphecmpfh' ) { return false; }
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// https://microsoftedge.microsoft.com/addons/detail/cimighlppcgcoapaliogpjjdehbnofhn
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if ( id === 'cimighlppcgcoapaliogpjjdehbnofhn' ) { return false; }
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return true;
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})();
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/******************************************************************************/
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export const ubolLog = (...args) => {
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// Do not pollute dev console in stable releases.
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if ( isSideloaded !== true ) { return; }
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console.info('[uBOL]', ...args);
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};
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/******************************************************************************/
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export const getMatchedRules = (( ) => {
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const noopFn = ( ) => Promise.resolve([]);
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if ( isSideloaded !== true ) { return noopFn; }
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if ( dnr.onRuleMatchedDebug instanceof Object === false ) { return noopFn; }
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const rulesets = new Map();
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const bufferSize = 256;
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const matchedRules = new Array(bufferSize);
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matchedRules.fill(null);
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let writePtr = 0;
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const pruneLongLists = list => {
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if ( list.length <= 21 ) { return list; }
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return [ ...list.slice(0, 10), '...', ...list.slice(-10) ];
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};
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const getRuleset = async rulesetId => {
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if ( rulesets.has(rulesetId) ) {
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return rulesets.get(rulesetId);
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}
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let rules;
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if ( rulesetId === dnr.DYNAMIC_RULESET_ID ) {
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rules = await dnr.getDynamicRules().catch(( ) => undefined);
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} else {
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const response = await fetch(`/rulesets/main/${rulesetId}.json`).catch(( ) => undefined);
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if ( response === undefined ) { return; }
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rules = await response.json().catch(( ) => undefined);
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}
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if ( Array.isArray(rules) === false ) { return; }
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const ruleset = new Map();
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for ( const rule of rules ) {
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const condition = rule.condition;
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if ( condition ) {
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if ( condition.requestDomains ) {
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condition.requestDomains = pruneLongLists(condition.requestDomains);
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}
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if ( condition.initiatorDomains ) {
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condition.initiatorDomains = pruneLongLists(condition.initiatorDomains);
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}
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}
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const ruleId = rule.id;
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rule.id = `${rulesetId}/${ruleId}`;
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ruleset.set(ruleId, rule);
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}
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rulesets.set(rulesetId, ruleset);
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return ruleset;
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};
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const getRuleDetails = async ruleInfo => {
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const { rulesetId, ruleId } = ruleInfo.rule;
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const ruleset = await getRuleset(rulesetId);
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if ( ruleset === undefined ) { return; }
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return { request: ruleInfo.request, rule: ruleset.get(ruleId) };
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};
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dnr.onRuleMatchedDebug.addListener(ruleInfo => {
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matchedRules[writePtr] = ruleInfo;
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writePtr = (writePtr + 1) % bufferSize;
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});
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return async tabId => {
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const promises = [];
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for ( let i = 0; i < bufferSize; i++ ) {
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const j = (writePtr + i) % bufferSize;
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const ruleInfo = matchedRules[j];
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if ( ruleInfo === null ) { continue; }
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if ( ruleInfo.request.tabId !== -1 ) {
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if ( ruleInfo.request.tabId !== tabId ) { continue; }
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}
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const promise = getRuleDetails(ruleInfo);
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if ( promise === undefined ) { continue; }
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promises.unshift(promise);
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}
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return Promise.all(promises);
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};
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})();
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/******************************************************************************/
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