mirror of
https://github.com/gorhill/uBlock.git
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1a863a877d
This reflects the _world_ of the MV3 scripting API: https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API/scripting/ExecutionWorld MAIN: page's world ISOLATED: extension's content script world Some scriptlets are best executed in either world, so this commit allows to pick in which world a scriptlet should execute (default to MAIN). For instance, the new sed.js scriptlet will now execute in the ISOLATED world.
2308 lines
77 KiB
JavaScript
2308 lines
77 KiB
JavaScript
/*******************************************************************************
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uBlock Origin - a browser extension to block requests.
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Copyright (C) 2019-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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The scriptlets below are meant to be injected only into a
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web page context.
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*/
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// Externally added to the private namespace in which scriptlets execute.
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/* global scriptletGlobals */
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'use strict';
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export const builtinScriptlets = [];
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/*******************************************************************************
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Helper functions
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These are meant to be used as dependencies to injectable scriptlets.
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*******************************************************************************/
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builtinScriptlets.push({
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name: 'safe-self.fn',
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fn: safeSelf,
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});
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function safeSelf() {
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if ( scriptletGlobals.has('safeSelf') ) {
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return scriptletGlobals.get('safeSelf');
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}
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const safe = {
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'RegExp': self.RegExp,
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'RegExp_test': self.RegExp.prototype.test,
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'RegExp_exec': self.RegExp.prototype.exec,
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'addEventListener': self.EventTarget.prototype.addEventListener,
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'removeEventListener': self.EventTarget.prototype.removeEventListener,
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'log': console.log.bind(console),
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'uboLog': function(...args) {
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if ( args.length === 0 ) { return; }
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if ( `${args[0]}` === '' ) { return; }
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this.log('[uBO]', ...args);
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},
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};
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scriptletGlobals.set('safeSelf', safe);
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return safe;
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}
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/******************************************************************************/
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builtinScriptlets.push({
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name: 'pattern-to-regex.fn',
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fn: patternToRegex,
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});
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function patternToRegex(pattern, flags = undefined) {
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if ( pattern === '' ) { return /^/; }
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const match = /^\/(.+)\/([gimsu]*)$/.exec(pattern);
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if ( match !== null ) {
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return new RegExp(match[1], match[2] || flags);
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}
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return new RegExp(pattern.replace(/[.*+?^${}()|[\]\\]/g, '\\$&'), flags);
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}
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/******************************************************************************/
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builtinScriptlets.push({
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name: 'get-exception-token.fn',
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fn: getExceptionToken,
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});
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function getExceptionToken() {
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const token =
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String.fromCharCode(Date.now() % 26 + 97) +
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Math.floor(Math.random() * 982451653 + 982451653).toString(36);
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const oe = self.onerror;
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self.onerror = function(msg, ...args) {
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if ( typeof msg === 'string' && msg.includes(token) ) { return true; }
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if ( oe instanceof Function ) {
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return oe.call(this, msg, ...args);
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}
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}.bind();
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return token;
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}
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/******************************************************************************/
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builtinScriptlets.push({
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name: 'should-debug.fn',
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fn: shouldDebug,
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});
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function shouldDebug(details) {
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if ( details instanceof Object === false ) { return false; }
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return scriptletGlobals.has('canDebug') && details.debug;
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}
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/******************************************************************************/
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builtinScriptlets.push({
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name: 'should-log.fn',
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fn: shouldLog,
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});
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function shouldLog(details) {
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if ( details instanceof Object === false ) { return false; }
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return scriptletGlobals.has('canDebug') && details.log;
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}
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/******************************************************************************/
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builtinScriptlets.push({
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name: 'run-at.fn',
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fn: runAt,
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dependencies: [
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'safe-self.fn',
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],
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});
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function runAt(fn, when) {
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const intFromReadyState = state => {
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const targets = {
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'loading': 1,
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'interactive': 2, 'end': 2, '2': 2,
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'complete': 3, 'idle': 3, '3': 3,
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};
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const tokens = Array.isArray(state) ? state : [ state ];
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for ( const token of tokens ) {
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const prop = `${token}`;
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if ( targets.hasOwnProperty(prop) === false ) { continue; }
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return targets[prop];
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}
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return 0;
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};
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const runAt = intFromReadyState(when);
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if ( intFromReadyState(document.readyState) >= runAt ) {
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fn(); return;
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}
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const onStateChange = ( ) => {
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if ( intFromReadyState(document.readyState) < runAt ) { return; }
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fn();
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safe.removeEventListener.apply(document, args);
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};
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const safe = safeSelf();
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const args = [ 'readystatechange', onStateChange, { capture: true } ];
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safe.addEventListener.apply(document, args);
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}
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/*******************************************************************************
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Injectable scriptlets
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These are meant to be used in the MAIN (webpage) execution world.
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*******************************************************************************/
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builtinScriptlets.push({
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name: 'abort-current-script.js',
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aliases: [ 'acs.js', 'abort-current-inline-script.js', 'acis.js' ],
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fn: abortCurrentScript,
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dependencies: [
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'pattern-to-regex.fn',
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'get-exception-token.fn',
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'safe-self.fn',
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'should-debug.fn',
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'should-log.fn',
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],
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});
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// Issues to mind before changing anything:
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// https://github.com/uBlockOrigin/uBlock-issues/issues/2154
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function abortCurrentScript(
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arg1 = '',
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arg2 = '',
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arg3 = ''
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) {
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const details = typeof arg1 !== 'object'
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? { target: arg1, needle: arg2, context: arg3 }
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: arg1;
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const { target = '', needle = '', context = '' } = details;
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if ( typeof target !== 'string' ) { return; }
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if ( target === '' ) { return; }
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const safe = safeSelf();
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const reNeedle = patternToRegex(needle);
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const reContext = patternToRegex(context);
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const thisScript = document.currentScript;
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const chain = target.split('.');
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let owner = window;
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let prop;
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for (;;) {
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prop = chain.shift();
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if ( chain.length === 0 ) { break; }
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owner = owner[prop];
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if ( owner instanceof Object === false ) { return; }
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}
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let value;
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let desc = Object.getOwnPropertyDescriptor(owner, prop);
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if (
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desc instanceof Object === false ||
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desc.get instanceof Function === false
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) {
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value = owner[prop];
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desc = undefined;
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}
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const log = shouldLog(details);
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const debug = shouldDebug(details);
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const exceptionToken = getExceptionToken();
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const scriptTexts = new WeakMap();
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const getScriptText = elem => {
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let text = elem.textContent;
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if ( text.trim() !== '' ) { return text; }
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if ( scriptTexts.has(elem) ) { return scriptTexts.get(elem); }
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const [ , mime, content ] =
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/^data:([^,]*),(.+)$/.exec(elem.src.trim()) ||
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[ '', '', '' ];
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try {
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switch ( true ) {
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case mime.endsWith(';base64'):
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text = self.atob(content);
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break;
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default:
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text = self.decodeURIComponent(content);
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break;
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}
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} catch(ex) {
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}
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scriptTexts.set(elem, text);
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return text;
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};
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const validate = ( ) => {
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if ( debug ) { debugger; } // jshint ignore: line
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const e = document.currentScript;
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if ( e instanceof HTMLScriptElement === false ) { return; }
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if ( e === thisScript ) { return; }
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if ( reContext.test(e.src) === false ) { return; }
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if ( log && e.src !== '' ) { safe.uboLog(`matched src: ${e.src}`); }
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const scriptText = getScriptText(e);
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if ( reNeedle.test(scriptText) === false ) { return; }
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if ( log ) { safe.uboLog(`matched script text: ${scriptText}`); }
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throw new ReferenceError(exceptionToken);
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};
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if ( debug ) { debugger; } // jshint ignore: line
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try {
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Object.defineProperty(owner, prop, {
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get: function() {
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validate();
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return desc instanceof Object
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? desc.get.call(owner)
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: value;
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},
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set: function(a) {
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validate();
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if ( desc instanceof Object ) {
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desc.set.call(owner, a);
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} else {
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value = a;
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}
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}
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});
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} catch(ex) {
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if ( log ) { safe.uboLog(ex); }
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}
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}
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/******************************************************************************/
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builtinScriptlets.push({
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name: 'abort-on-property-read.js',
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aliases: [ 'aopr.js' ],
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fn: abortOnPropertyRead,
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dependencies: [
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'get-exception-token.fn',
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],
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});
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function abortOnPropertyRead(
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chain = ''
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) {
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if ( typeof chain !== 'string' ) { return; }
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if ( chain === '' ) { return; }
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const exceptionToken = getExceptionToken();
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const abort = function() {
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throw new ReferenceError(exceptionToken);
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};
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const makeProxy = function(owner, chain) {
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const pos = chain.indexOf('.');
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if ( pos === -1 ) {
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const desc = Object.getOwnPropertyDescriptor(owner, chain);
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if ( !desc || desc.get !== abort ) {
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Object.defineProperty(owner, chain, {
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get: abort,
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set: function(){}
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});
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}
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return;
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}
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const prop = chain.slice(0, pos);
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let v = owner[prop];
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chain = chain.slice(pos + 1);
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if ( v ) {
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makeProxy(v, chain);
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return;
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}
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const desc = Object.getOwnPropertyDescriptor(owner, prop);
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if ( desc && desc.set !== undefined ) { return; }
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Object.defineProperty(owner, prop, {
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get: function() { return v; },
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set: function(a) {
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v = a;
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if ( a instanceof Object ) {
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makeProxy(a, chain);
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}
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}
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});
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};
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const owner = window;
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makeProxy(owner, chain);
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}
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/******************************************************************************/
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builtinScriptlets.push({
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name: 'abort-on-property-write.js',
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aliases: [ 'aopw.js' ],
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fn: abortOnPropertyWrite,
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dependencies: [
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'get-exception-token.fn',
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],
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});
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function abortOnPropertyWrite(
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prop = ''
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) {
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if ( typeof prop !== 'string' ) { return; }
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if ( prop === '' ) { return; }
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const exceptionToken = getExceptionToken();
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let owner = window;
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for (;;) {
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const pos = prop.indexOf('.');
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if ( pos === -1 ) { break; }
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owner = owner[prop.slice(0, pos)];
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if ( owner instanceof Object === false ) { return; }
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prop = prop.slice(pos + 1);
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}
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delete owner[prop];
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Object.defineProperty(owner, prop, {
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set: function() {
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throw new ReferenceError(exceptionToken);
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}
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});
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}
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/******************************************************************************/
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builtinScriptlets.push({
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name: 'abort-on-stack-trace.js',
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aliases: [ 'aost.js' ],
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fn: abortOnStackTrace,
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dependencies: [
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'get-exception-token.fn',
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'pattern-to-regex.fn',
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'safe-self.fn',
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],
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});
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// Status is currently experimental
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function abortOnStackTrace(
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chain = '',
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needle = '',
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logLevel = ''
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) {
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if ( typeof chain !== 'string' ) { return; }
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const safe = safeSelf();
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const reNeedle = patternToRegex(needle);
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const exceptionToken = getExceptionToken();
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const ErrorCtor = self.Error;
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const mustAbort = function(err) {
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let docURL = self.location.href;
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const pos = docURL.indexOf('#');
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if ( pos !== -1 ) {
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docURL = docURL.slice(0, pos);
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}
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// Normalize stack trace
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const reLine = /(.*?@)?(\S+)(:\d+):\d+\)?$/;
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const lines = [];
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for ( let line of err.stack.split(/[\n\r]+/) ) {
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if ( line.includes(exceptionToken) ) { continue; }
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line = line.trim();
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const match = safe.RegExp_exec.call(reLine, line);
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if ( match === null ) { continue; }
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let url = match[2];
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if ( url.startsWith('(') ) { url = url.slice(1); }
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if ( url === docURL ) {
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url = 'inlineScript';
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} else if ( url.startsWith('<anonymous>') ) {
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url = 'injectedScript';
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}
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let fn = match[1] !== undefined
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? match[1].slice(0, -1)
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: line.slice(0, match.index).trim();
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if ( fn.startsWith('at') ) { fn = fn.slice(2).trim(); }
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let rowcol = match[3];
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lines.push(' ' + `${fn} ${url}${rowcol}:1`.trim());
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}
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lines[0] = `stackDepth:${lines.length-1}`;
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const stack = lines.join('\t');
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const r = safe.RegExp_test.call(reNeedle, stack);
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if (
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logLevel === '1' ||
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logLevel === '2' && r ||
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logLevel === '3' && !r
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) {
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safe.uboLog(stack.replace(/\t/g, '\n'));
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}
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return r;
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};
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const makeProxy = function(owner, chain) {
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const pos = chain.indexOf('.');
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if ( pos === -1 ) {
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let v = owner[chain];
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Object.defineProperty(owner, chain, {
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get: function() {
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if ( mustAbort(new ErrorCtor(exceptionToken)) ) {
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throw new ReferenceError(exceptionToken);
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}
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return v;
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},
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set: function(a) {
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if ( mustAbort(new ErrorCtor(exceptionToken)) ) {
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throw new ReferenceError(exceptionToken);
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}
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v = a;
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},
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});
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return;
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}
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const prop = chain.slice(0, pos);
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let v = owner[prop];
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chain = chain.slice(pos + 1);
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if ( v ) {
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makeProxy(v, chain);
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return;
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}
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const desc = Object.getOwnPropertyDescriptor(owner, prop);
|
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if ( desc && desc.set !== undefined ) { return; }
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Object.defineProperty(owner, prop, {
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get: function() { return v; },
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set: function(a) {
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v = a;
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if ( a instanceof Object ) {
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makeProxy(a, chain);
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}
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}
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});
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};
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const owner = window;
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makeProxy(owner, chain);
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}
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/******************************************************************************/
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builtinScriptlets.push({
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name: 'addEventListener-defuser.js',
|
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aliases: [ 'aeld.js' ],
|
|
fn: addEventListenerDefuser,
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dependencies: [
|
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'pattern-to-regex.fn',
|
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'run-at.fn',
|
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'safe-self.fn',
|
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'should-debug.fn',
|
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'should-log.fn',
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],
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});
|
|
// https://github.com/uBlockOrigin/uAssets/issues/9123#issuecomment-848255120
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|
function addEventListenerDefuser(
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arg1 = '',
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arg2 = ''
|
|
) {
|
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const details = typeof arg1 !== 'object'
|
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? { type: arg1, pattern: arg2 }
|
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: arg1;
|
|
const { type = '', pattern = '' } = details;
|
|
if ( typeof type !== 'string' ) { return; }
|
|
if ( typeof pattern !== 'string' ) { return; }
|
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const safe = safeSelf();
|
|
const reType = patternToRegex(type);
|
|
const rePattern = patternToRegex(pattern);
|
|
const log = shouldLog(details);
|
|
const debug = shouldDebug(details);
|
|
const trapEddEventListeners = ( ) => {
|
|
const eventListenerHandler = {
|
|
apply: function(target, thisArg, args) {
|
|
let type, handler;
|
|
try {
|
|
type = String(args[0]);
|
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handler = String(args[1]);
|
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} catch(ex) {
|
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}
|
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const matchesType = safe.RegExp_test.call(reType, type);
|
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const matchesHandler = safe.RegExp_test.call(rePattern, handler);
|
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const matchesEither = matchesType || matchesHandler;
|
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const matchesBoth = matchesType && matchesHandler;
|
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if ( log === 1 && matchesBoth || log === 2 && matchesEither || log === 3 ) {
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safe.uboLog(`addEventListener('${type}', ${handler})`);
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}
|
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if ( debug === 1 && matchesBoth || debug === 2 && matchesEither ) {
|
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debugger; // jshint ignore:line
|
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}
|
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if ( matchesBoth ) { return; }
|
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return Reflect.apply(target, thisArg, args);
|
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}
|
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};
|
|
self.EventTarget.prototype.addEventListener = new Proxy(
|
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self.EventTarget.prototype.addEventListener,
|
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eventListenerHandler
|
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);
|
|
};
|
|
runAt(( ) => {
|
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trapEddEventListeners();
|
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}, details.runAt);
|
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}
|
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|
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/******************************************************************************/
|
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|
|
builtinScriptlets.push({
|
|
name: 'json-prune.js',
|
|
fn: jsonPrune,
|
|
dependencies: [
|
|
'pattern-to-regex.fn',
|
|
],
|
|
});
|
|
// When no "prune paths" argument is provided, the scriptlet is
|
|
// used for logging purpose and the "needle paths" argument is
|
|
// used to filter logging output.
|
|
//
|
|
// https://github.com/uBlockOrigin/uBlock-issues/issues/1545
|
|
// - Add support for "remove everything if needle matches" case
|
|
function jsonPrune(
|
|
rawPrunePaths = '',
|
|
rawNeedlePaths = ''
|
|
) {
|
|
if ( typeof rawPrunePaths !== 'string' ) { return; }
|
|
const prunePaths = rawPrunePaths !== ''
|
|
? rawPrunePaths.split(/ +/)
|
|
: [];
|
|
let needlePaths;
|
|
let log, reLogNeedle;
|
|
if ( prunePaths.length !== 0 ) {
|
|
needlePaths = prunePaths.length !== 0 && rawNeedlePaths !== ''
|
|
? rawNeedlePaths.split(/ +/)
|
|
: [];
|
|
} else {
|
|
log = console.log.bind(console);
|
|
reLogNeedle = patternToRegex(rawNeedlePaths);
|
|
}
|
|
const findOwner = function(root, path, prune = false) {
|
|
let owner = root;
|
|
let chain = path;
|
|
for (;;) {
|
|
if ( typeof owner !== 'object' || owner === null ) {
|
|
return false;
|
|
}
|
|
const pos = chain.indexOf('.');
|
|
if ( pos === -1 ) {
|
|
if ( prune === false ) {
|
|
return owner.hasOwnProperty(chain);
|
|
}
|
|
if ( chain === '*' ) {
|
|
for ( const key in owner ) {
|
|
if ( owner.hasOwnProperty(key) === false ) { continue; }
|
|
delete owner[key];
|
|
}
|
|
} else if ( owner.hasOwnProperty(chain) ) {
|
|
delete owner[chain];
|
|
}
|
|
return true;
|
|
}
|
|
const prop = chain.slice(0, pos);
|
|
if (
|
|
prop === '[]' && Array.isArray(owner) ||
|
|
prop === '*' && owner instanceof Object
|
|
) {
|
|
const next = chain.slice(pos + 1);
|
|
let found = false;
|
|
for ( const key of Object.keys(owner) ) {
|
|
found = findOwner(owner[key], next, prune) || found;
|
|
}
|
|
return found;
|
|
}
|
|
if ( owner.hasOwnProperty(prop) === false ) { return false; }
|
|
owner = owner[prop];
|
|
chain = chain.slice(pos + 1);
|
|
}
|
|
};
|
|
const mustProcess = function(root) {
|
|
for ( const needlePath of needlePaths ) {
|
|
if ( findOwner(root, needlePath) === false ) {
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
};
|
|
const pruner = function(o) {
|
|
if ( log !== undefined ) {
|
|
const json = JSON.stringify(o, null, 2);
|
|
if ( reLogNeedle.test(json) ) {
|
|
log('uBO:', location.hostname, json);
|
|
}
|
|
return o;
|
|
}
|
|
if ( mustProcess(o) === false ) { return o; }
|
|
for ( const path of prunePaths ) {
|
|
findOwner(o, path, true);
|
|
}
|
|
return o;
|
|
};
|
|
JSON.parse = new Proxy(JSON.parse, {
|
|
apply: function() {
|
|
return pruner(Reflect.apply(...arguments));
|
|
},
|
|
});
|
|
Response.prototype.json = new Proxy(Response.prototype.json, {
|
|
apply: function() {
|
|
return Reflect.apply(...arguments).then(o => pruner(o));
|
|
},
|
|
});
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
builtinScriptlets.push({
|
|
name: 'nano-setInterval-booster.js',
|
|
aliases: [ 'nano-sib.js' ],
|
|
fn: nanoSetIntervalBooster,
|
|
dependencies: [
|
|
'pattern-to-regex.fn',
|
|
],
|
|
});
|
|
// Imported from:
|
|
// https://github.com/NanoAdblocker/NanoFilters/blob/1f3be7211bb0809c5106996f52564bf10c4525f7/NanoFiltersSource/NanoResources.txt#L126
|
|
//
|
|
// Speed up or down setInterval, 3 optional arguments.
|
|
// The payload matcher, a string literal or a JavaScript RegExp, defaults
|
|
// to match all.
|
|
// delayMatcher
|
|
// The delay matcher, an integer, defaults to 1000.
|
|
// Use `*` to match any delay.
|
|
// boostRatio - The delay multiplier when there is a match, 0.5 speeds up by
|
|
// 2 times and 2 slows down by 2 times, defaults to 0.05 or speed up
|
|
// 20 times. Speed up and down both cap at 50 times.
|
|
function nanoSetIntervalBooster(
|
|
needleArg = '',
|
|
delayArg = '',
|
|
boostArg = ''
|
|
) {
|
|
if ( typeof needleArg !== 'string' ) { return; }
|
|
const reNeedle = patternToRegex(needleArg);
|
|
let delay = delayArg !== '*' ? parseInt(delayArg, 10) : -1;
|
|
if ( isNaN(delay) || isFinite(delay) === false ) { delay = 1000; }
|
|
let boost = parseFloat(boostArg);
|
|
boost = isNaN(boost) === false && isFinite(boost)
|
|
? Math.min(Math.max(boost, 0.02), 50)
|
|
: 0.05;
|
|
self.setInterval = new Proxy(self.setInterval, {
|
|
apply: function(target, thisArg, args) {
|
|
const [ a, b ] = args;
|
|
if (
|
|
(delay === -1 || b === delay) &&
|
|
reNeedle.test(a.toString())
|
|
) {
|
|
args[1] = b * boost;
|
|
}
|
|
return target.apply(thisArg, args);
|
|
}
|
|
});
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
builtinScriptlets.push({
|
|
name: 'nano-setTimeout-booster.js',
|
|
aliases: [ 'nano-stb.js' ],
|
|
fn: nanoSetTimeoutBooster,
|
|
dependencies: [
|
|
'pattern-to-regex.fn',
|
|
],
|
|
});
|
|
// Imported from:
|
|
// https://github.com/NanoAdblocker/NanoFilters/blob/1f3be7211bb0809c5106996f52564bf10c4525f7/NanoFiltersSource/NanoResources.txt#L82
|
|
//
|
|
// Speed up or down setTimeout, 3 optional arguments.
|
|
// funcMatcher
|
|
// The payload matcher, a string literal or a JavaScript RegExp, defaults
|
|
// to match all.
|
|
// delayMatcher
|
|
// The delay matcher, an integer, defaults to 1000.
|
|
// Use `*` to match any delay.
|
|
// boostRatio - The delay multiplier when there is a match, 0.5 speeds up by
|
|
// 2 times and 2 slows down by 2 times, defaults to 0.05 or speed up
|
|
// 20 times. Speed up and down both cap at 50 times.
|
|
function nanoSetTimeoutBooster(
|
|
needleArg = '',
|
|
delayArg = '',
|
|
boostArg = ''
|
|
) {
|
|
if ( typeof needleArg !== 'string' ) { return; }
|
|
const reNeedle = patternToRegex(needleArg);
|
|
let delay = delayArg !== '*' ? parseInt(delayArg, 10) : -1;
|
|
if ( isNaN(delay) || isFinite(delay) === false ) { delay = 1000; }
|
|
let boost = parseFloat(boostArg);
|
|
boost = isNaN(boost) === false && isFinite(boost)
|
|
? Math.min(Math.max(boost, 0.02), 50)
|
|
: 0.05;
|
|
self.setTimeout = new Proxy(self.setTimeout, {
|
|
apply: function(target, thisArg, args) {
|
|
const [ a, b ] = args;
|
|
if (
|
|
(delay === -1 || b === delay) &&
|
|
reNeedle.test(a.toString())
|
|
) {
|
|
args[1] = b * boost;
|
|
}
|
|
return target.apply(thisArg, args);
|
|
}
|
|
});
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
builtinScriptlets.push({
|
|
name: 'noeval-if.js',
|
|
fn: noEvalIf,
|
|
dependencies: [
|
|
'pattern-to-regex.fn',
|
|
],
|
|
});
|
|
function noEvalIf(
|
|
needle = ''
|
|
) {
|
|
if ( typeof needle !== 'string' ) { return; }
|
|
const reNeedle = patternToRegex(needle);
|
|
window.eval = new Proxy(window.eval, { // jshint ignore: line
|
|
apply: function(target, thisArg, args) {
|
|
const a = args[0];
|
|
if ( reNeedle.test(a.toString()) ) { return; }
|
|
return target.apply(thisArg, args);
|
|
}
|
|
});
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
builtinScriptlets.push({
|
|
name: 'no-fetch-if.js',
|
|
fn: noFetchIf,
|
|
dependencies: [
|
|
'pattern-to-regex.fn',
|
|
],
|
|
});
|
|
function noFetchIf(
|
|
arg1 = '',
|
|
) {
|
|
if ( typeof arg1 !== 'string' ) { return; }
|
|
const needles = [];
|
|
for ( const condition of arg1.split(/\s+/) ) {
|
|
if ( condition === '' ) { continue; }
|
|
const pos = condition.indexOf(':');
|
|
let key, value;
|
|
if ( pos !== -1 ) {
|
|
key = condition.slice(0, pos);
|
|
value = condition.slice(pos + 1);
|
|
} else {
|
|
key = 'url';
|
|
value = condition;
|
|
}
|
|
needles.push({ key, re: patternToRegex(value) });
|
|
}
|
|
const log = needles.length === 0 ? console.log.bind(console) : undefined;
|
|
self.fetch = new Proxy(self.fetch, {
|
|
apply: function(target, thisArg, args) {
|
|
let proceed = true;
|
|
try {
|
|
let details;
|
|
if ( args[0] instanceof self.Request ) {
|
|
details = args[0];
|
|
} else {
|
|
details = Object.assign({ url: args[0] }, args[1]);
|
|
}
|
|
const props = new Map();
|
|
for ( const prop in details ) {
|
|
let v = details[prop];
|
|
if ( typeof v !== 'string' ) {
|
|
try { v = JSON.stringify(v); }
|
|
catch(ex) { }
|
|
}
|
|
if ( typeof v !== 'string' ) { continue; }
|
|
props.set(prop, v);
|
|
}
|
|
if ( log !== undefined ) {
|
|
const out = Array.from(props)
|
|
.map(a => `${a[0]}:${a[1]}`)
|
|
.join(' ');
|
|
log(`uBO: fetch(${out})`);
|
|
}
|
|
proceed = needles.length === 0;
|
|
for ( const { key, re } of needles ) {
|
|
if (
|
|
props.has(key) === false ||
|
|
re.test(props.get(key)) === false
|
|
) {
|
|
proceed = true;
|
|
break;
|
|
}
|
|
}
|
|
} catch(ex) {
|
|
}
|
|
return proceed
|
|
? Reflect.apply(target, thisArg, args)
|
|
: Promise.resolve(new Response());
|
|
}
|
|
});
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
builtinScriptlets.push({
|
|
name: 'refresh-defuser.js',
|
|
fn: refreshDefuser,
|
|
});
|
|
// https://www.reddit.com/r/uBlockOrigin/comments/q0frv0/while_reading_a_sports_article_i_was_redirected/hf7wo9v/
|
|
function refreshDefuser(
|
|
arg1 = ''
|
|
) {
|
|
if ( typeof arg1 !== 'string' ) { return; }
|
|
const defuse = ( ) => {
|
|
const meta = document.querySelector('meta[http-equiv="refresh" i][content]');
|
|
if ( meta === null ) { return; }
|
|
const s = arg1 === ''
|
|
? meta.getAttribute('content')
|
|
: arg1;
|
|
const ms = Math.max(parseFloat(s) || 0, 0) * 1000;
|
|
setTimeout(( ) => { window.stop(); }, ms);
|
|
};
|
|
if ( document.readyState === 'loading' ) {
|
|
document.addEventListener('DOMContentLoaded', defuse, { once: true });
|
|
} else {
|
|
defuse();
|
|
}
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
builtinScriptlets.push({
|
|
name: 'remove-attr.js',
|
|
aliases: [ 'ra.js' ],
|
|
fn: removeAttr,
|
|
});
|
|
function removeAttr(
|
|
token = '',
|
|
selector = '',
|
|
behavior = ''
|
|
) {
|
|
if ( typeof token !== 'string' ) { return; }
|
|
if ( token === '' ) { return; }
|
|
const tokens = token.split(/\s*\|\s*/);
|
|
if ( selector === '' ) {
|
|
selector = `[${tokens.join('],[')}]`;
|
|
}
|
|
let timer;
|
|
const rmattr = ( ) => {
|
|
timer = undefined;
|
|
try {
|
|
const nodes = document.querySelectorAll(selector);
|
|
for ( const node of nodes ) {
|
|
for ( const attr of tokens ) {
|
|
node.removeAttribute(attr);
|
|
}
|
|
}
|
|
} catch(ex) {
|
|
}
|
|
};
|
|
const mutationHandler = mutations => {
|
|
if ( timer !== undefined ) { return; }
|
|
let skip = true;
|
|
for ( let i = 0; i < mutations.length && skip; i++ ) {
|
|
const { type, addedNodes, removedNodes } = mutations[i];
|
|
if ( type === 'attributes' ) { skip = false; }
|
|
for ( let j = 0; j < addedNodes.length && skip; j++ ) {
|
|
if ( addedNodes[j].nodeType === 1 ) { skip = false; break; }
|
|
}
|
|
for ( let j = 0; j < removedNodes.length && skip; j++ ) {
|
|
if ( removedNodes[j].nodeType === 1 ) { skip = false; break; }
|
|
}
|
|
}
|
|
if ( skip ) { return; }
|
|
timer = self.requestIdleCallback(rmattr, { timeout: 17 });
|
|
};
|
|
const start = ( ) => {
|
|
rmattr();
|
|
if ( /\bstay\b/.test(behavior) === false ) { return; }
|
|
const observer = new MutationObserver(mutationHandler);
|
|
observer.observe(document, {
|
|
attributes: true,
|
|
attributeFilter: tokens,
|
|
childList: true,
|
|
subtree: true,
|
|
});
|
|
};
|
|
if ( document.readyState !== 'complete' && /\bcomplete\b/.test(behavior) ) {
|
|
self.addEventListener('load', start, { once: true });
|
|
} else if ( document.readyState !== 'loading' || /\basap\b/.test(behavior) ) {
|
|
start();
|
|
} else {
|
|
self.addEventListener('DOMContentLoaded', start, { once: true });
|
|
}
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
builtinScriptlets.push({
|
|
name: 'remove-class.js',
|
|
aliases: [ 'rc.js' ],
|
|
fn: removeClass,
|
|
});
|
|
function removeClass(
|
|
token = '',
|
|
selector = '',
|
|
behavior = ''
|
|
) {
|
|
if ( typeof token !== 'string' ) { return; }
|
|
if ( token === '' ) { return; }
|
|
const tokens = token.split(/\s*\|\s*/);
|
|
if ( selector === '' ) {
|
|
selector = '.' + tokens.map(a => CSS.escape(a)).join(',.');
|
|
}
|
|
let timer;
|
|
const rmclass = function() {
|
|
timer = undefined;
|
|
try {
|
|
const nodes = document.querySelectorAll(selector);
|
|
for ( const node of nodes ) {
|
|
node.classList.remove(...tokens);
|
|
}
|
|
} catch(ex) {
|
|
}
|
|
};
|
|
const mutationHandler = mutations => {
|
|
if ( timer !== undefined ) { return; }
|
|
let skip = true;
|
|
for ( let i = 0; i < mutations.length && skip; i++ ) {
|
|
const { type, addedNodes, removedNodes } = mutations[i];
|
|
if ( type === 'attributes' ) { skip = false; }
|
|
for ( let j = 0; j < addedNodes.length && skip; j++ ) {
|
|
if ( addedNodes[j].nodeType === 1 ) { skip = false; break; }
|
|
}
|
|
for ( let j = 0; j < removedNodes.length && skip; j++ ) {
|
|
if ( removedNodes[j].nodeType === 1 ) { skip = false; break; }
|
|
}
|
|
}
|
|
if ( skip ) { return; }
|
|
timer = self.requestIdleCallback(rmclass, { timeout: 67 });
|
|
};
|
|
const start = ( ) => {
|
|
rmclass();
|
|
if ( /\bstay\b/.test(behavior) === false ) { return; }
|
|
const observer = new MutationObserver(mutationHandler);
|
|
observer.observe(document, {
|
|
attributes: true,
|
|
attributeFilter: [ 'class' ],
|
|
childList: true,
|
|
subtree: true,
|
|
});
|
|
};
|
|
if ( document.readyState !== 'complete' && /\bcomplete\b/.test(behavior) ) {
|
|
self.addEventListener('load', start, { once: true });
|
|
} else if ( document.readyState === 'loading' ) {
|
|
self.addEventListener('DOMContentLoaded', start, { once: true });
|
|
} else {
|
|
start();
|
|
}
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
builtinScriptlets.push({
|
|
name: 'no-requestAnimationFrame-if.js',
|
|
aliases: [ 'norafif.js' ],
|
|
fn: noRequestAnimationFrameIf,
|
|
dependencies: [
|
|
'pattern-to-regex.fn',
|
|
],
|
|
});
|
|
function noRequestAnimationFrameIf(
|
|
needle = ''
|
|
) {
|
|
if ( typeof needle !== 'string' ) { return; }
|
|
const needleNot = needle.charAt(0) === '!';
|
|
if ( needleNot ) { needle = needle.slice(1); }
|
|
const log = needleNot === false && needle === '' ? console.log : undefined;
|
|
const reNeedle = patternToRegex(needle);
|
|
window.requestAnimationFrame = new Proxy(window.requestAnimationFrame, {
|
|
apply: function(target, thisArg, args) {
|
|
const a = String(args[0]);
|
|
let defuse = false;
|
|
if ( log !== undefined ) {
|
|
log('uBO: requestAnimationFrame("%s")', a);
|
|
} else {
|
|
defuse = reNeedle.test(a) !== needleNot;
|
|
}
|
|
if ( defuse ) {
|
|
args[0] = function(){};
|
|
}
|
|
return target.apply(thisArg, args);
|
|
}
|
|
});
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
builtinScriptlets.push({
|
|
name: 'set-constant.js',
|
|
aliases: [ 'set.js' ],
|
|
fn: setConstant,
|
|
dependencies: [
|
|
'run-at.fn',
|
|
],
|
|
});
|
|
function setConstant(
|
|
arg1 = '',
|
|
arg2 = '',
|
|
arg3 = ''
|
|
) {
|
|
const details = typeof arg1 !== 'object'
|
|
? { prop: arg1, value: arg2 }
|
|
: arg1;
|
|
if ( arg3 !== '' ) {
|
|
if ( /^\d$/.test(arg3) ) {
|
|
details.options = [ arg3 ];
|
|
} else {
|
|
details.options = Array.from(arguments).slice(2);
|
|
}
|
|
}
|
|
const { prop: chain = '', value: cValue = '' } = details;
|
|
if ( typeof chain !== 'string' ) { return; }
|
|
if ( chain === '' ) { return; }
|
|
const options = details.options || [];
|
|
function setConstant(chain, cValue) {
|
|
const trappedProp = (( ) => {
|
|
const pos = chain.lastIndexOf('.');
|
|
if ( pos === -1 ) { return chain; }
|
|
return chain.slice(pos+1);
|
|
})();
|
|
if ( trappedProp === '' ) { return; }
|
|
const thisScript = document.currentScript;
|
|
const objectDefineProperty = Object.defineProperty.bind(Object);
|
|
const cloakFunc = fn => {
|
|
objectDefineProperty(fn, 'name', { value: trappedProp });
|
|
const proxy = new Proxy(fn, {
|
|
defineProperty(target, prop) {
|
|
if ( prop !== 'toString' ) {
|
|
return Reflect.deleteProperty(...arguments);
|
|
}
|
|
return true;
|
|
},
|
|
deleteProperty(target, prop) {
|
|
if ( prop !== 'toString' ) {
|
|
return Reflect.deleteProperty(...arguments);
|
|
}
|
|
return true;
|
|
},
|
|
get(target, prop) {
|
|
if ( prop === 'toString' ) {
|
|
return function() {
|
|
return `function ${trappedProp}() { [native code] }`;
|
|
}.bind(null);
|
|
}
|
|
return Reflect.get(...arguments);
|
|
},
|
|
});
|
|
return proxy;
|
|
};
|
|
if ( cValue === 'undefined' ) {
|
|
cValue = undefined;
|
|
} else if ( cValue === 'false' ) {
|
|
cValue = false;
|
|
} else if ( cValue === 'true' ) {
|
|
cValue = true;
|
|
} else if ( cValue === 'null' ) {
|
|
cValue = null;
|
|
} else if ( cValue === "''" ) {
|
|
cValue = '';
|
|
} else if ( cValue === '[]' ) {
|
|
cValue = [];
|
|
} else if ( cValue === '{}' ) {
|
|
cValue = {};
|
|
} else if ( cValue === 'noopFunc' ) {
|
|
cValue = cloakFunc(function(){});
|
|
} else if ( cValue === 'trueFunc' ) {
|
|
cValue = cloakFunc(function(){ return true; });
|
|
} else if ( cValue === 'falseFunc' ) {
|
|
cValue = cloakFunc(function(){ return false; });
|
|
} else if ( /^-?\d+$/.test(cValue) ) {
|
|
cValue = parseInt(cValue);
|
|
if ( isNaN(cValue) ) { return; }
|
|
if ( Math.abs(cValue) > 0x7FFF ) { return; }
|
|
} else {
|
|
return;
|
|
}
|
|
if ( options.includes('asFunction') ) {
|
|
cValue = ( ) => cValue;
|
|
} else if ( options.includes('asCallback') ) {
|
|
cValue = ( ) => (( ) => cValue);
|
|
} else if ( options.includes('asResolved') ) {
|
|
cValue = Promise.resolve(cValue);
|
|
} else if ( options.includes('asRejected') ) {
|
|
cValue = Promise.reject(cValue);
|
|
}
|
|
let aborted = false;
|
|
const mustAbort = function(v) {
|
|
if ( aborted ) { return true; }
|
|
aborted =
|
|
(v !== undefined && v !== null) &&
|
|
(cValue !== undefined && cValue !== null) &&
|
|
(typeof v !== typeof cValue);
|
|
return aborted;
|
|
};
|
|
// https://github.com/uBlockOrigin/uBlock-issues/issues/156
|
|
// Support multiple trappers for the same property.
|
|
const trapProp = function(owner, prop, configurable, handler) {
|
|
if ( handler.init(configurable ? owner[prop] : cValue) === false ) { return; }
|
|
const odesc = Object.getOwnPropertyDescriptor(owner, prop);
|
|
let prevGetter, prevSetter;
|
|
if ( odesc instanceof Object ) {
|
|
owner[prop] = cValue;
|
|
if ( odesc.get instanceof Function ) {
|
|
prevGetter = odesc.get;
|
|
}
|
|
if ( odesc.set instanceof Function ) {
|
|
prevSetter = odesc.set;
|
|
}
|
|
}
|
|
try {
|
|
objectDefineProperty(owner, prop, {
|
|
configurable,
|
|
get() {
|
|
if ( prevGetter !== undefined ) {
|
|
prevGetter();
|
|
}
|
|
return handler.getter(); // cValue
|
|
},
|
|
set(a) {
|
|
if ( prevSetter !== undefined ) {
|
|
prevSetter(a);
|
|
}
|
|
handler.setter(a);
|
|
}
|
|
});
|
|
} catch(ex) {
|
|
}
|
|
};
|
|
const trapChain = function(owner, chain) {
|
|
const pos = chain.indexOf('.');
|
|
if ( pos === -1 ) {
|
|
trapProp(owner, chain, false, {
|
|
v: undefined,
|
|
init: function(v) {
|
|
if ( mustAbort(v) ) { return false; }
|
|
this.v = v;
|
|
return true;
|
|
},
|
|
getter: function() {
|
|
return document.currentScript === thisScript
|
|
? this.v
|
|
: cValue;
|
|
},
|
|
setter: function(a) {
|
|
if ( mustAbort(a) === false ) { return; }
|
|
cValue = a;
|
|
}
|
|
});
|
|
return;
|
|
}
|
|
const prop = chain.slice(0, pos);
|
|
const v = owner[prop];
|
|
chain = chain.slice(pos + 1);
|
|
if ( v instanceof Object || typeof v === 'object' && v !== null ) {
|
|
trapChain(v, chain);
|
|
return;
|
|
}
|
|
trapProp(owner, prop, true, {
|
|
v: undefined,
|
|
init: function(v) {
|
|
this.v = v;
|
|
return true;
|
|
},
|
|
getter: function() {
|
|
return this.v;
|
|
},
|
|
setter: function(a) {
|
|
this.v = a;
|
|
if ( a instanceof Object ) {
|
|
trapChain(a, chain);
|
|
}
|
|
}
|
|
});
|
|
};
|
|
trapChain(window, chain);
|
|
}
|
|
runAt(( ) => {
|
|
setConstant(chain, cValue);
|
|
}, options);
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
builtinScriptlets.push({
|
|
name: 'no-setInterval-if.js',
|
|
aliases: [ 'nosiif.js' ],
|
|
fn: noSetIntervalIf,
|
|
dependencies: [
|
|
'pattern-to-regex.fn',
|
|
],
|
|
});
|
|
function noSetIntervalIf(
|
|
needle = '',
|
|
delay = ''
|
|
) {
|
|
if ( typeof needle !== 'string' ) { return; }
|
|
const needleNot = needle.charAt(0) === '!';
|
|
if ( needleNot ) { needle = needle.slice(1); }
|
|
if ( delay === '' ) { delay = undefined; }
|
|
let delayNot = false;
|
|
if ( delay !== undefined ) {
|
|
delayNot = delay.charAt(0) === '!';
|
|
if ( delayNot ) { delay = delay.slice(1); }
|
|
delay = parseInt(delay, 10);
|
|
}
|
|
const log = needleNot === false && needle === '' && delay === undefined
|
|
? console.log
|
|
: undefined;
|
|
const reNeedle = patternToRegex(needle);
|
|
window.setInterval = new Proxy(window.setInterval, {
|
|
apply: function(target, thisArg, args) {
|
|
const a = String(args[0]);
|
|
const b = args[1];
|
|
if ( log !== undefined ) {
|
|
log('uBO: setInterval("%s", %s)', a, b);
|
|
} else {
|
|
let defuse;
|
|
if ( needle !== '' ) {
|
|
defuse = reNeedle.test(a) !== needleNot;
|
|
}
|
|
if ( defuse !== false && delay !== undefined ) {
|
|
defuse = (b === delay || isNaN(b) && isNaN(delay) ) !== delayNot;
|
|
}
|
|
if ( defuse ) {
|
|
args[0] = function(){};
|
|
}
|
|
}
|
|
return target.apply(thisArg, args);
|
|
},
|
|
get(target, prop, receiver) {
|
|
if ( prop === 'toString' ) {
|
|
return target.toString.bind(target);
|
|
}
|
|
return Reflect.get(target, prop, receiver);
|
|
},
|
|
});
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
builtinScriptlets.push({
|
|
name: 'no-setTimeout-if.js',
|
|
aliases: [ 'nostif.js', 'setTimeout-defuser.js' ],
|
|
fn: noSetTimeoutIf,
|
|
dependencies: [
|
|
'pattern-to-regex.fn',
|
|
],
|
|
});
|
|
function noSetTimeoutIf(
|
|
needle = '',
|
|
delay = ''
|
|
) {
|
|
if ( typeof needle !== 'string' ) { return; }
|
|
const needleNot = needle.charAt(0) === '!';
|
|
if ( needleNot ) { needle = needle.slice(1); }
|
|
if ( delay === '' ) { delay = undefined; }
|
|
let delayNot = false;
|
|
if ( delay !== undefined ) {
|
|
delayNot = delay.charAt(0) === '!';
|
|
if ( delayNot ) { delay = delay.slice(1); }
|
|
delay = parseInt(delay, 10);
|
|
}
|
|
const log = needleNot === false && needle === '' && delay === undefined
|
|
? console.log
|
|
: undefined;
|
|
const reNeedle = patternToRegex(needle);
|
|
window.setTimeout = new Proxy(window.setTimeout, {
|
|
apply: function(target, thisArg, args) {
|
|
const a = String(args[0]);
|
|
const b = args[1];
|
|
if ( log !== undefined ) {
|
|
log('uBO: setTimeout("%s", %s)', a, b);
|
|
} else {
|
|
let defuse;
|
|
if ( needle !== '' ) {
|
|
defuse = reNeedle.test(a) !== needleNot;
|
|
}
|
|
if ( defuse !== false && delay !== undefined ) {
|
|
defuse = (b === delay || isNaN(b) && isNaN(delay) ) !== delayNot;
|
|
}
|
|
if ( defuse ) {
|
|
args[0] = function(){};
|
|
}
|
|
}
|
|
return target.apply(thisArg, args);
|
|
},
|
|
get(target, prop, receiver) {
|
|
if ( prop === 'toString' ) {
|
|
return target.toString.bind(target);
|
|
}
|
|
return Reflect.get(target, prop, receiver);
|
|
},
|
|
});
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
builtinScriptlets.push({
|
|
name: 'webrtc-if.js',
|
|
fn: webrtcIf,
|
|
dependencies: [
|
|
'pattern-to-regex.fn',
|
|
],
|
|
});
|
|
function webrtcIf(
|
|
good = ''
|
|
) {
|
|
if ( typeof good !== 'string' ) { return; }
|
|
const reGood = patternToRegex(good);
|
|
const rtcName = window.RTCPeerConnection
|
|
? 'RTCPeerConnection'
|
|
: (window.webkitRTCPeerConnection ? 'webkitRTCPeerConnection' : '');
|
|
if ( rtcName === '' ) { return; }
|
|
const log = console.log.bind(console);
|
|
const neuteredPeerConnections = new WeakSet();
|
|
const isGoodConfig = function(instance, config) {
|
|
if ( neuteredPeerConnections.has(instance) ) { return false; }
|
|
if ( config instanceof Object === false ) { return true; }
|
|
if ( Array.isArray(config.iceServers) === false ) { return true; }
|
|
for ( const server of config.iceServers ) {
|
|
const urls = typeof server.urls === 'string'
|
|
? [ server.urls ]
|
|
: server.urls;
|
|
if ( Array.isArray(urls) ) {
|
|
for ( const url of urls ) {
|
|
if ( reGood.test(url) ) { return true; }
|
|
}
|
|
}
|
|
if ( typeof server.username === 'string' ) {
|
|
if ( reGood.test(server.username) ) { return true; }
|
|
}
|
|
if ( typeof server.credential === 'string' ) {
|
|
if ( reGood.test(server.credential) ) { return true; }
|
|
}
|
|
}
|
|
neuteredPeerConnections.add(instance);
|
|
return false;
|
|
};
|
|
const peerConnectionCtor = window[rtcName];
|
|
const peerConnectionProto = peerConnectionCtor.prototype;
|
|
peerConnectionProto.createDataChannel =
|
|
new Proxy(peerConnectionProto.createDataChannel, {
|
|
apply: function(target, thisArg, args) {
|
|
if ( isGoodConfig(target, args[1]) === false ) {
|
|
log('uBO:', args[1]);
|
|
return Reflect.apply(target, thisArg, args.slice(0, 1));
|
|
}
|
|
return Reflect.apply(target, thisArg, args);
|
|
},
|
|
});
|
|
window[rtcName] =
|
|
new Proxy(peerConnectionCtor, {
|
|
construct: function(target, args) {
|
|
if ( isGoodConfig(target, args[0]) === false ) {
|
|
log('uBO:', args[0]);
|
|
return Reflect.construct(target);
|
|
}
|
|
return Reflect.construct(target, args);
|
|
}
|
|
});
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
builtinScriptlets.push({
|
|
name: 'no-xhr-if.js',
|
|
fn: noXhrIf,
|
|
dependencies: [
|
|
'pattern-to-regex.fn',
|
|
],
|
|
});
|
|
function noXhrIf(
|
|
arg1 = ''
|
|
) {
|
|
if ( typeof arg1 !== 'string' ) { return; }
|
|
const xhrInstances = new WeakMap();
|
|
const needles = [];
|
|
for ( const condition of arg1.split(/\s+/) ) {
|
|
if ( condition === '' ) { continue; }
|
|
const pos = condition.indexOf(':');
|
|
let key, value;
|
|
if ( pos !== -1 ) {
|
|
key = condition.slice(0, pos);
|
|
value = condition.slice(pos + 1);
|
|
} else {
|
|
key = 'url';
|
|
value = condition;
|
|
}
|
|
needles.push({ key, re: patternToRegex(value) });
|
|
}
|
|
const log = needles.length === 0 ? console.log.bind(console) : undefined;
|
|
self.XMLHttpRequest = class extends self.XMLHttpRequest {
|
|
open(...args) {
|
|
if ( log !== undefined ) {
|
|
log(`uBO: xhr.open(${args.join(', ')})`);
|
|
} else {
|
|
const argNames = [ 'method', 'url' ];
|
|
const haystack = new Map();
|
|
for ( let i = 0; i < args.length && i < argNames.length; i++ ) {
|
|
haystack.set(argNames[i], args[i]);
|
|
}
|
|
if ( haystack.size !== 0 ) {
|
|
let matches = true;
|
|
for ( const { key, re } of needles ) {
|
|
matches = re.test(haystack.get(key) || '');
|
|
if ( matches === false ) { break; }
|
|
}
|
|
if ( matches ) {
|
|
xhrInstances.set(this, haystack);
|
|
}
|
|
}
|
|
}
|
|
return super.open(...args);
|
|
}
|
|
send(...args) {
|
|
const haystack = xhrInstances.get(this);
|
|
if ( haystack === undefined ) {
|
|
return super.send(...args);
|
|
}
|
|
Object.defineProperties(this, {
|
|
readyState: { value: 4, writable: false },
|
|
response: { value: '', writable: false },
|
|
responseText: { value: '', writable: false },
|
|
responseURL: { value: haystack.get('url'), writable: false },
|
|
responseXML: { value: '', writable: false },
|
|
status: { value: 200, writable: false },
|
|
statusText: { value: 'OK', writable: false },
|
|
});
|
|
this.dispatchEvent(new Event('readystatechange'));
|
|
this.dispatchEvent(new Event('load'));
|
|
this.dispatchEvent(new Event('loadend'));
|
|
}
|
|
};
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
builtinScriptlets.push({
|
|
name: 'window-close-if.js',
|
|
fn: windowCloseIf,
|
|
dependencies: [
|
|
'pattern-to-regex.fn',
|
|
],
|
|
});
|
|
// https://github.com/uBlockOrigin/uAssets/issues/10323#issuecomment-992312847
|
|
// https://github.com/AdguardTeam/Scriptlets/issues/158
|
|
// https://github.com/uBlockOrigin/uBlock-issues/discussions/2270
|
|
function windowCloseIf(
|
|
arg1 = ''
|
|
) {
|
|
if ( typeof arg1 !== 'string' ) { return; }
|
|
let subject = '';
|
|
if ( /^\/.*\/$/.test(arg1) ) {
|
|
subject = window.location.href;
|
|
} else if ( arg1 !== '' ) {
|
|
subject = `${window.location.pathname}${window.location.search}`;
|
|
}
|
|
try {
|
|
const re = patternToRegex(arg1);
|
|
if ( re.test(subject) ) {
|
|
window.close();
|
|
}
|
|
} catch(ex) {
|
|
console.log(ex);
|
|
}
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
builtinScriptlets.push({
|
|
name: 'window.name-defuser.js',
|
|
fn: windowNameDefuser,
|
|
});
|
|
// https://github.com/gorhill/uBlock/issues/1228
|
|
function windowNameDefuser() {
|
|
if ( window === window.top ) {
|
|
window.name = '';
|
|
}
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
builtinScriptlets.push({
|
|
name: 'overlay-buster.js',
|
|
fn: overlayBuster,
|
|
});
|
|
// Experimental: Generic nuisance overlay buster.
|
|
// if this works well and proves to be useful, this may end up
|
|
// as a stock tool in uBO's popup panel.
|
|
function overlayBuster() {
|
|
if ( window !== window.top ) { return; }
|
|
var tstart;
|
|
var ttl = 30000;
|
|
var delay = 0;
|
|
var delayStep = 50;
|
|
var buster = function() {
|
|
var docEl = document.documentElement,
|
|
bodyEl = document.body,
|
|
vw = Math.min(docEl.clientWidth, window.innerWidth),
|
|
vh = Math.min(docEl.clientHeight, window.innerHeight),
|
|
tol = Math.min(vw, vh) * 0.05,
|
|
el = document.elementFromPoint(vw/2, vh/2),
|
|
style, rect;
|
|
for (;;) {
|
|
if ( el === null || el.parentNode === null || el === bodyEl ) {
|
|
break;
|
|
}
|
|
style = window.getComputedStyle(el);
|
|
if ( parseInt(style.zIndex, 10) >= 1000 || style.position === 'fixed' ) {
|
|
rect = el.getBoundingClientRect();
|
|
if ( rect.left <= tol && rect.top <= tol && (vw - rect.right) <= tol && (vh - rect.bottom) < tol ) {
|
|
el.parentNode.removeChild(el);
|
|
tstart = Date.now();
|
|
el = document.elementFromPoint(vw/2, vh/2);
|
|
bodyEl.style.setProperty('overflow', 'auto', 'important');
|
|
docEl.style.setProperty('overflow', 'auto', 'important');
|
|
continue;
|
|
}
|
|
}
|
|
el = el.parentNode;
|
|
}
|
|
if ( (Date.now() - tstart) < ttl ) {
|
|
delay = Math.min(delay + delayStep, 1000);
|
|
setTimeout(buster, delay);
|
|
}
|
|
};
|
|
var domReady = function(ev) {
|
|
if ( ev ) {
|
|
document.removeEventListener(ev.type, domReady);
|
|
}
|
|
tstart = Date.now();
|
|
setTimeout(buster, delay);
|
|
};
|
|
if ( document.readyState === 'loading' ) {
|
|
document.addEventListener('DOMContentLoaded', domReady);
|
|
} else {
|
|
domReady();
|
|
}
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
builtinScriptlets.push({
|
|
name: 'alert-buster.js',
|
|
fn: alertBuster,
|
|
});
|
|
// https://github.com/uBlockOrigin/uAssets/issues/8
|
|
function alertBuster() {
|
|
window.alert = new Proxy(window.alert, {
|
|
apply: function(a) {
|
|
console.info(a);
|
|
},
|
|
get(target, prop, receiver) {
|
|
if ( prop === 'toString' ) {
|
|
return target.toString.bind(target);
|
|
}
|
|
return Reflect.get(target, prop, receiver);
|
|
},
|
|
});
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
builtinScriptlets.push({
|
|
name: 'nowebrtc.js',
|
|
fn: noWebrtc,
|
|
});
|
|
// Prevent web pages from using RTCPeerConnection(), and report attempts in console.
|
|
function noWebrtc() {
|
|
var rtcName = window.RTCPeerConnection ? 'RTCPeerConnection' : (
|
|
window.webkitRTCPeerConnection ? 'webkitRTCPeerConnection' : ''
|
|
);
|
|
if ( rtcName === '' ) { return; }
|
|
var log = console.log.bind(console);
|
|
var pc = function(cfg) {
|
|
log('Document tried to create an RTCPeerConnection: %o', cfg);
|
|
};
|
|
const noop = function() {
|
|
};
|
|
pc.prototype = {
|
|
close: noop,
|
|
createDataChannel: noop,
|
|
createOffer: noop,
|
|
setRemoteDescription: noop,
|
|
toString: function() {
|
|
return '[object RTCPeerConnection]';
|
|
}
|
|
};
|
|
var z = window[rtcName];
|
|
window[rtcName] = pc.bind(window);
|
|
if ( z.prototype ) {
|
|
z.prototype.createDataChannel = function() {
|
|
return {
|
|
close: function() {},
|
|
send: function() {}
|
|
};
|
|
}.bind(null);
|
|
}
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
builtinScriptlets.push({
|
|
name: 'golem.de.js',
|
|
fn: golemDe,
|
|
});
|
|
// https://github.com/uBlockOrigin/uAssets/issues/88
|
|
function golemDe() {
|
|
const rael = window.addEventListener;
|
|
window.addEventListener = function(a, b) {
|
|
rael(...arguments);
|
|
let haystack;
|
|
try {
|
|
haystack = b.toString();
|
|
} catch(ex) {
|
|
}
|
|
if (
|
|
typeof haystack === 'string' &&
|
|
/^\s*function\s*\(\)\s*\{\s*window\.clearTimeout\(r\)\s*\}\s*$/.test(haystack)
|
|
) {
|
|
b();
|
|
}
|
|
}.bind(window);
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
builtinScriptlets.push({
|
|
name: 'adfly-defuser.js',
|
|
fn: adflyDefuser,
|
|
});
|
|
// https://github.com/reek/anti-adblock-killer/issues/3774#issuecomment-348536138
|
|
// https://github.com/uBlockOrigin/uAssets/issues/883
|
|
function adflyDefuser() {
|
|
// Based on AdsBypasser
|
|
// License:
|
|
// https://github.com/adsbypasser/adsbypasser/blob/master/LICENSE
|
|
var isDigit = /^\d$/;
|
|
var handler = function(encodedURL) {
|
|
var var1 = "", var2 = "", i;
|
|
for (i = 0; i < encodedURL.length; i++) {
|
|
if (i % 2 === 0) {
|
|
var1 = var1 + encodedURL.charAt(i);
|
|
} else {
|
|
var2 = encodedURL.charAt(i) + var2;
|
|
}
|
|
}
|
|
var data = (var1 + var2).split("");
|
|
for (i = 0; i < data.length; i++) {
|
|
if (isDigit.test(data[i])) {
|
|
for (var ii = i + 1; ii < data.length; ii++) {
|
|
if (isDigit.test(data[ii])) {
|
|
var temp = parseInt(data[i],10) ^ parseInt(data[ii],10);
|
|
if (temp < 10) {
|
|
data[i] = temp.toString();
|
|
}
|
|
i = ii;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
data = data.join("");
|
|
var decodedURL = window.atob(data).slice(16, -16);
|
|
window.stop();
|
|
window.onbeforeunload = null;
|
|
window.location.href = decodedURL;
|
|
};
|
|
try {
|
|
var val;
|
|
var flag = true;
|
|
window.Object.defineProperty(window, "ysmm", {
|
|
configurable: false,
|
|
set: function(value) {
|
|
if (flag) {
|
|
flag = false;
|
|
try {
|
|
if (typeof value === "string") {
|
|
handler(value);
|
|
}
|
|
} catch (err) { }
|
|
}
|
|
val = value;
|
|
},
|
|
get: function() {
|
|
return val;
|
|
}
|
|
});
|
|
} catch (err) {
|
|
window.console.error("Failed to set up Adfly bypasser!");
|
|
}
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
builtinScriptlets.push({
|
|
name: 'disable-newtab-links.js',
|
|
fn: disableNewtabLinks,
|
|
});
|
|
// https://github.com/uBlockOrigin/uAssets/issues/913
|
|
function disableNewtabLinks() {
|
|
document.addEventListener('click', function(ev) {
|
|
var target = ev.target;
|
|
while ( target !== null ) {
|
|
if ( target.localName === 'a' && target.hasAttribute('target') ) {
|
|
ev.stopPropagation();
|
|
ev.preventDefault();
|
|
break;
|
|
}
|
|
target = target.parentNode;
|
|
}
|
|
});
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
builtinScriptlets.push({
|
|
name: 'cookie-remover.js',
|
|
fn: cookieRemover,
|
|
dependencies: [
|
|
'pattern-to-regex.fn',
|
|
],
|
|
});
|
|
// https://github.com/NanoAdblocker/NanoFilters/issues/149
|
|
function cookieRemover(
|
|
needle = ''
|
|
) {
|
|
if ( typeof needle !== 'string' ) { return; }
|
|
const reName = patternToRegex(needle);
|
|
const removeCookie = function() {
|
|
document.cookie.split(';').forEach(cookieStr => {
|
|
let pos = cookieStr.indexOf('=');
|
|
if ( pos === -1 ) { return; }
|
|
let cookieName = cookieStr.slice(0, pos).trim();
|
|
if ( !reName.test(cookieName) ) { return; }
|
|
let part1 = cookieName + '=';
|
|
let part2a = '; domain=' + document.location.hostname;
|
|
let part2b = '; domain=.' + document.location.hostname;
|
|
let part2c, part2d;
|
|
let domain = document.domain;
|
|
if ( domain ) {
|
|
if ( domain !== document.location.hostname ) {
|
|
part2c = '; domain=.' + domain;
|
|
}
|
|
if ( domain.startsWith('www.') ) {
|
|
part2d = '; domain=' + domain.replace('www', '');
|
|
}
|
|
}
|
|
let part3 = '; path=/';
|
|
let part4 = '; Max-Age=-1000; expires=Thu, 01 Jan 1970 00:00:00 GMT';
|
|
document.cookie = part1 + part4;
|
|
document.cookie = part1 + part2a + part4;
|
|
document.cookie = part1 + part2b + part4;
|
|
document.cookie = part1 + part3 + part4;
|
|
document.cookie = part1 + part2a + part3 + part4;
|
|
document.cookie = part1 + part2b + part3 + part4;
|
|
if ( part2c !== undefined ) {
|
|
document.cookie = part1 + part2c + part3 + part4;
|
|
}
|
|
if ( part2d !== undefined ) {
|
|
document.cookie = part1 + part2d + part3 + part4;
|
|
}
|
|
});
|
|
};
|
|
removeCookie();
|
|
window.addEventListener('beforeunload', removeCookie);
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
builtinScriptlets.push({
|
|
name: 'xml-prune.js',
|
|
fn: xmlPrune,
|
|
dependencies: [
|
|
'pattern-to-regex.fn',
|
|
],
|
|
});
|
|
function xmlPrune(
|
|
selector = '',
|
|
selectorCheck = '',
|
|
urlPattern = ''
|
|
) {
|
|
if ( typeof selector !== 'string' ) { return; }
|
|
if ( selector === '' ) { return; }
|
|
const reUrl = patternToRegex(urlPattern);
|
|
const pruner = text => {
|
|
if ( (/^\s*</.test(text) && />\s*$/.test(text)) === false ) {
|
|
return text;
|
|
}
|
|
try {
|
|
const xmlParser = new DOMParser();
|
|
const xmlDoc = xmlParser.parseFromString(text, 'text/xml');
|
|
if ( selectorCheck !== '' && xmlDoc.querySelector(selectorCheck) === null ) {
|
|
return text;
|
|
}
|
|
const elems = xmlDoc.querySelectorAll(selector);
|
|
if ( elems.length !== 0 ) {
|
|
for ( const elem of elems ) {
|
|
elem.remove();
|
|
}
|
|
const serializer = new XMLSerializer();
|
|
text = serializer.serializeToString(xmlDoc);
|
|
}
|
|
} catch(ex) {
|
|
}
|
|
return text;
|
|
};
|
|
const urlFromArg = arg => {
|
|
if ( typeof arg === 'string' ) { return arg; }
|
|
if ( arg instanceof Request ) { return arg.url; }
|
|
return String(arg);
|
|
};
|
|
const realFetch = self.fetch;
|
|
self.fetch = new Proxy(self.fetch, {
|
|
apply: function(target, thisArg, args) {
|
|
if ( reUrl.test(urlFromArg(args[0])) === false ) {
|
|
return Reflect.apply(target, thisArg, args);
|
|
}
|
|
return realFetch(...args).then(realResponse =>
|
|
realResponse.text().then(text =>
|
|
new Response(pruner(text), {
|
|
status: realResponse.status,
|
|
statusText: realResponse.statusText,
|
|
headers: realResponse.headers,
|
|
})
|
|
)
|
|
);
|
|
}
|
|
});
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
builtinScriptlets.push({
|
|
name: 'm3u-prune.js',
|
|
fn: m3uPrune,
|
|
});
|
|
// https://en.wikipedia.org/wiki/M3U
|
|
function m3uPrune(
|
|
m3uPattern = '',
|
|
urlPattern = ''
|
|
) {
|
|
if ( typeof m3uPattern !== 'string' ) { return; }
|
|
const regexFromArg = arg => {
|
|
if ( arg === '' ) { return /^/; }
|
|
const match = /^\/(.+)\/([gms]*)$/.exec(arg);
|
|
if ( match !== null ) {
|
|
let flags = match[2] || '';
|
|
if ( flags.includes('m') ) { flags += 's'; }
|
|
return new RegExp(match[1], flags);
|
|
}
|
|
return new RegExp(
|
|
arg.replace(/[.+?^${}()|[\]\\]/g, '\\$&').replace(/\*+/g, '.*?')
|
|
);
|
|
};
|
|
const reM3u = regexFromArg(m3uPattern);
|
|
const reUrl = regexFromArg(urlPattern);
|
|
const pruneSpliceoutBlock = (lines, i) => {
|
|
if ( lines[i].startsWith('#EXT-X-CUE:TYPE="SpliceOut"') === false ) {
|
|
return false;
|
|
}
|
|
lines[i] = undefined; i += 1;
|
|
if ( lines[i].startsWith('#EXT-X-ASSET:CAID') ) {
|
|
lines[i] = undefined; i += 1;
|
|
}
|
|
if ( lines[i].startsWith('#EXT-X-SCTE35:') ) {
|
|
lines[i] = undefined; i += 1;
|
|
}
|
|
if ( lines[i].startsWith('#EXT-X-CUE-IN') ) {
|
|
lines[i] = undefined; i += 1;
|
|
}
|
|
if ( lines[i].startsWith('#EXT-X-SCTE35:') ) {
|
|
lines[i] = undefined; i += 1;
|
|
}
|
|
return true;
|
|
};
|
|
const pruneInfBlock = (lines, i) => {
|
|
if ( lines[i].startsWith('#EXTINF') === false ) { return false; }
|
|
if ( reM3u.test(lines[i+1]) === false ) { return false; }
|
|
lines[i] = lines[i+1] = undefined; i += 2;
|
|
if ( lines[i].startsWith('#EXT-X-DISCONTINUITY') ) {
|
|
lines[i] = undefined; i += 1;
|
|
}
|
|
return true;
|
|
};
|
|
const pruner = text => {
|
|
if ( (/^\s*#EXTM3U/.test(text)) === false ) { return text; }
|
|
if ( reM3u.multiline ) {
|
|
reM3u.lastIndex = 0;
|
|
for (;;) {
|
|
const match = reM3u.exec(text);
|
|
if ( match === null ) { break; }
|
|
const before = text.slice(0, match.index);
|
|
if ( before.length === 0 || /[\n\r]+\s*$/.test(before) ) {
|
|
const after = text.slice(match.index + match[0].length);
|
|
if ( after.length === 0 || /^\s*[\n\r]+/.test(after) ) {
|
|
text = before.trim() + '\n' + after.trim();
|
|
reM3u.lastIndex = before.length + 1;
|
|
}
|
|
}
|
|
if ( reM3u.global === false ) { break; }
|
|
}
|
|
}
|
|
const lines = text.split(/\n\r|\n|\r/);
|
|
for ( let i = 0; i < lines.length; i++ ) {
|
|
if ( lines[i] === undefined ) { continue; }
|
|
if ( pruneSpliceoutBlock(lines, i) ) { continue; }
|
|
if ( pruneInfBlock(lines, i) ) { continue; }
|
|
}
|
|
return lines.filter(l => l !== undefined).join('\n');
|
|
};
|
|
const urlFromArg = arg => {
|
|
if ( typeof arg === 'string' ) { return arg; }
|
|
if ( arg instanceof Request ) { return arg.url; }
|
|
return String(arg);
|
|
};
|
|
const realFetch = self.fetch;
|
|
self.fetch = new Proxy(self.fetch, {
|
|
apply: function(target, thisArg, args) {
|
|
if ( reUrl.test(urlFromArg(args[0])) === false ) {
|
|
return Reflect.apply(target, thisArg, args);
|
|
}
|
|
return realFetch(...args).then(realResponse =>
|
|
realResponse.text().then(text =>
|
|
new Response(pruner(text), {
|
|
status: realResponse.status,
|
|
statusText: realResponse.statusText,
|
|
headers: realResponse.headers,
|
|
})
|
|
)
|
|
);
|
|
}
|
|
});
|
|
self.XMLHttpRequest.prototype.open = new Proxy(self.XMLHttpRequest.prototype.open, {
|
|
apply: async (target, thisArg, args) => {
|
|
if ( reUrl.test(urlFromArg(args[1])) === false ) {
|
|
return Reflect.apply(target, thisArg, args);
|
|
}
|
|
thisArg.addEventListener('readystatechange', function() {
|
|
if ( thisArg.readyState !== 4 ) { return; }
|
|
const type = thisArg.responseType;
|
|
if ( type !== '' && type !== 'text' ) { return; }
|
|
const textin = thisArg.responseText;
|
|
const textout = pruner(textin);
|
|
if ( textout === textin ) { return; }
|
|
Object.defineProperty(thisArg, 'response', { value: textout });
|
|
Object.defineProperty(thisArg, 'responseText', { value: textout });
|
|
});
|
|
return Reflect.apply(target, thisArg, args);
|
|
}
|
|
});
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
builtinScriptlets.push({
|
|
name: 'href-sanitizer.js',
|
|
fn: hrefSanitizer,
|
|
});
|
|
function hrefSanitizer(
|
|
selector = '',
|
|
source = ''
|
|
) {
|
|
if ( typeof selector !== 'string' ) { return; }
|
|
if ( selector === '' ) { return; }
|
|
if ( source === '' ) { source = 'text'; }
|
|
const sanitizeCopycats = (href, text) => {
|
|
let elems = [];
|
|
try {
|
|
elems = document.querySelectorAll(`a[href="${href}"`);
|
|
}
|
|
catch(ex) {
|
|
}
|
|
for ( const elem of elems ) {
|
|
elem.setAttribute('href', text);
|
|
}
|
|
};
|
|
const extractText = (elem, source) => {
|
|
if ( /^\[.*\]$/.test(source) ) {
|
|
return elem.getAttribute(source.slice(1,-1).trim()) || '';
|
|
}
|
|
if ( source !== 'text' ) { return ''; }
|
|
const text = elem.textContent
|
|
.replace(/^[^\x21-\x7e]+/, '') // remove leading invalid characters
|
|
.replace(/[^\x21-\x7e]+$/, '') // remove trailing invalid characters
|
|
;
|
|
if ( /^https:\/\/./.test(text) === false ) { return ''; }
|
|
if ( /[^\x21-\x7e]/.test(text) ) { return ''; }
|
|
return text;
|
|
};
|
|
const sanitize = ( ) => {
|
|
let elems = [];
|
|
try {
|
|
elems = document.querySelectorAll(selector);
|
|
}
|
|
catch(ex) {
|
|
return false;
|
|
}
|
|
for ( const elem of elems ) {
|
|
if ( elem.localName !== 'a' ) { continue; }
|
|
if ( elem.hasAttribute('href') === false ) { continue; }
|
|
const href = elem.getAttribute('href');
|
|
const text = extractText(elem, source);
|
|
if ( text === '' ) { continue; }
|
|
if ( href === text ) { continue; }
|
|
elem.setAttribute('href', text);
|
|
sanitizeCopycats(href, text);
|
|
}
|
|
return true;
|
|
};
|
|
let observer, timer;
|
|
const onDomChanged = mutations => {
|
|
if ( timer !== undefined ) { return; }
|
|
let shouldSanitize = false;
|
|
for ( const mutation of mutations ) {
|
|
if ( mutation.addedNodes.length === 0 ) { continue; }
|
|
for ( const node of mutation.addedNodes ) {
|
|
if ( node.nodeType !== 1 ) { continue; }
|
|
shouldSanitize = true;
|
|
break;
|
|
}
|
|
if ( shouldSanitize ) { break; }
|
|
}
|
|
if ( shouldSanitize === false ) { return; }
|
|
timer = self.requestAnimationFrame(( ) => {
|
|
timer = undefined;
|
|
sanitize();
|
|
});
|
|
};
|
|
const start = ( ) => {
|
|
if ( sanitize() === false ) { return; }
|
|
observer = new MutationObserver(onDomChanged);
|
|
observer.observe(document.body, {
|
|
subtree: true,
|
|
childList: true,
|
|
});
|
|
};
|
|
if ( document.readyState === 'loading' ) {
|
|
document.addEventListener('DOMContentLoaded', start, { once: true });
|
|
} else {
|
|
start();
|
|
}
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
builtinScriptlets.push({
|
|
name: 'call-nothrow.js',
|
|
fn: callNothrow,
|
|
});
|
|
function callNothrow(
|
|
chain = ''
|
|
) {
|
|
if ( typeof chain !== 'string' ) { return; }
|
|
if ( chain === '' ) { return; }
|
|
const parts = chain.split('.');
|
|
let owner = window, prop;
|
|
for (;;) {
|
|
prop = parts.shift();
|
|
if ( parts.length === 0 ) { break; }
|
|
owner = owner[prop];
|
|
if ( owner instanceof Object === false ) { return; }
|
|
}
|
|
if ( prop === '' ) { return; }
|
|
const fn = owner[prop];
|
|
if ( typeof fn !== 'function' ) { return; }
|
|
owner[prop] = new Proxy(fn, {
|
|
apply: function(...args) {
|
|
let r;
|
|
try {
|
|
r = Reflect.apply(...args);
|
|
} catch(ex) {
|
|
}
|
|
return r;
|
|
},
|
|
});
|
|
}
|
|
|
|
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/******************************************************************************/
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builtinScriptlets.push({
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name: 'spoof-css.js',
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fn: spoofCSS,
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dependencies: [
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'safe-self.fn',
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],
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});
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function spoofCSS(
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selector,
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...args
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) {
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if ( typeof selector !== 'string' ) { return; }
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if ( selector === '' ) { return; }
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const toCamelCase = s => s.replace(/-[a-z]/g, s => s.charAt(1).toUpperCase());
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const propToValueMap = new Map();
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for ( let i = 0; i < args.length; i += 2 ) {
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if ( typeof args[i+0] !== 'string' ) { break; }
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if ( args[i+0] === '' ) { break; }
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if ( typeof args[i+1] !== 'string' ) { break; }
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propToValueMap.set(toCamelCase(args[i+0]), args[i+1]);
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}
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const safe = safeSelf();
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const canDebug = scriptletGlobals.has('canDebug');
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const shouldDebug = canDebug && propToValueMap.get('debug') || 0;
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const shouldLog = canDebug && propToValueMap.has('log') || 0;
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const proxiedStyles = new WeakSet();
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const spoofStyle = (prop, real) => {
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const normalProp = toCamelCase(prop);
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const shouldSpoof = propToValueMap.has(normalProp);
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const value = shouldSpoof ? propToValueMap.get(normalProp) : real;
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if ( shouldLog === 2 || shouldSpoof && shouldLog === 1 ) {
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safe.uboLog(prop, value);
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}
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return value;
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};
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self.getComputedStyle = new Proxy(self.getComputedStyle, {
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apply: function(target, thisArg, args) {
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if ( shouldDebug !== 0 ) { debugger; } // jshint ignore: line
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const style = Reflect.apply(target, thisArg, args);
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const targetElements = new WeakSet(document.querySelectorAll(selector));
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if ( targetElements.has(args[0]) === false ) { return style; }
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proxiedStyles.add(target);
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const proxiedStyle = new Proxy(style, {
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get(target, prop, receiver) {
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return spoofStyle(prop, Reflect.get(target, prop, receiver));
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},
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});
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return proxiedStyle;
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},
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get(target, prop, receiver) {
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if ( prop === 'toString' ) {
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return target.toString.bind(target);
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}
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return Reflect.get(target, prop, receiver);
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},
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});
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CSSStyleDeclaration.prototype.getPropertyValue = new Proxy(CSSStyleDeclaration.prototype.getPropertyValue, {
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apply: function(target, thisArg, args) {
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if ( shouldDebug !== 0 ) { debugger; } // jshint ignore: line
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const value = Reflect.apply(target, thisArg, args);
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if ( proxiedStyles.has(thisArg) === false ) { return value; }
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return spoofStyle(args[0], value);
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},
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get(target, prop, receiver) {
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if ( prop === 'toString' ) {
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return target.toString.bind(target);
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}
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return Reflect.get(target, prop, receiver);
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},
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});
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Element.prototype.getBoundingClientRect = new Proxy(Element.prototype.getBoundingClientRect, {
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apply: function(target, thisArg, args) {
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if ( shouldDebug !== 0 ) { debugger; } // jshint ignore: line
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const rect = Reflect.apply(target, thisArg, args);
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const targetElements = new WeakSet(document.querySelectorAll(selector));
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if ( targetElements.has(thisArg) === false ) { return rect; }
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let { height, width } = rect;
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if ( propToValueMap.has('width') ) {
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width = parseFloat(propToValueMap.get('width'));
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}
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if ( propToValueMap.has('height') ) {
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height = parseFloat(propToValueMap.get('height'));
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}
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return new self.DOMRect(rect.x, rect.y, width, height);
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},
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get(target, prop, receiver) {
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if ( prop === 'toString' ) {
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return target.toString.bind(target);
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}
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return Reflect.get(target, prop, receiver);
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},
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});
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}
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/******************************************************************************/
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builtinScriptlets.push({
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name: 'sed.js',
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requiresTrust: true,
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fn: sed,
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world: 'ISOLATED',
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dependencies: [
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'pattern-to-regex.fn',
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'run-at.fn',
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'safe-self.fn',
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],
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});
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function sed(
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nodeName = '',
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pattern = '',
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replacement = ''
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) {
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const reNodeName = patternToRegex(nodeName, 'i');
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const rePattern = patternToRegex(pattern, 'gms');
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const extraArgs = new Map(
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Array.from(arguments).slice(3).reduce((out, v, i, a) => {
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if ( (i & 1) === 0 ) { out.push([ a[i], a[i+1] || undefined ]); }
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return out;
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}, [])
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);
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const shouldLog = scriptletGlobals.has('canDebug') && extraArgs.get('log') || 0;
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const shouldStay = extraArgs.get('stay') || false;
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const reCondition = patternToRegex(extraArgs.get('condition') || '', 'gms');
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const safe = safeSelf();
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const stop = (takeRecord = true) => {
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if ( takeRecord ) {
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handleMutations(observer.takeRecords());
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}
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observer.disconnect();
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if ( shouldLog !== 0 ) {
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safe.uboLog(`sed.js: quitting "${pattern}" => "${replacement}"`);
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}
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};
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let sedCount = extraArgs.has('sedCount') ? parseInt(extraArgs.get('sedCount')) : 0;
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const handleNode = node => {
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const before = node.textContent;
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if ( safe.RegExp_test.call(rePattern, before) === false ) { return true; }
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if ( safe.RegExp_test.call(reCondition, before) === false ) { return true; }
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const after = before.replace(rePattern, replacement);
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node.textContent = after;
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if ( shouldLog !== 0 ) {
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safe.uboLog('sed.js before:\n', before);
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safe.uboLog('sed.js after:\n', after);
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}
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return sedCount === 0 || (sedCount -= 1) !== 0;
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};
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const handleMutations = mutations => {
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for ( const mutation of mutations ) {
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for ( const node of mutation.addedNodes ) {
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if ( reNodeName.test(node.nodeName) === false ) { continue; }
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if ( handleNode(node) ) { continue; }
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stop(false); return;
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}
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}
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};
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const observer = new MutationObserver(handleMutations);
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observer.observe(document, { childList: true, subtree: true });
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if ( document.documentElement ) {
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const treeWalker = document.createTreeWalker(
|
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document.documentElement,
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NodeFilter.SHOW_ELEMENT | NodeFilter.SHOW_TEXT
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);
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let count = 0;
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for (;;) {
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const node = treeWalker.nextNode();
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count += 1;
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if ( node === null ) { break; }
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if ( reNodeName.test(node.nodeName) === false ) { continue; }
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if ( handleNode(node) ) { continue; }
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stop(); break;
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}
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if ( shouldLog !== 0 ) {
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safe.uboLog(`sed.js ${count} nodes present before installing mutation observer`);
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}
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}
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if ( shouldStay ) { return; }
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runAt(( ) => {
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const quitAfter = parseInt(extraArgs.get('quitAfter')) || 0;
|
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if ( quitAfter !== 0 ) {
|
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setTimeout(( ) => { stop(); }, quitAfter);
|
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} else {
|
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stop();
|
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}
|
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}, 'interactive');
|
|
}
|
|
|
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/******************************************************************************/
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