[mv3] Add support for aeld scriptlet

This commit is contained in:
Raymond Hill 2022-10-11 11:13:27 -04:00
parent 556c3a143f
commit da6d17c159
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GPG Key ID: 25E1490B761470C2
4 changed files with 121 additions and 5 deletions

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@ -0,0 +1,119 @@
/*******************************************************************************
uBlock Origin - a browser extension to block requests.
Copyright (C) 2019-present Raymond Hill
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see {http://www.gnu.org/licenses/}.
Home: https://github.com/gorhill/uBlock
The scriptlets below are meant to be injected only into a
web page context.
*/
/* jshint esversion:11 */
'use strict';
/******************************************************************************/
/// name no-addEventListener-if
/// alias noaelif
/// alias aeld
/******************************************************************************/
// Important!
// Isolate from global scope
(function uBOL_noAddEventListenerIf() {
/******************************************************************************/
// $rulesetId$
const argsMap = new Map(self.$argsMap$);
const hostnamesMap = new Map(self.$hostnamesMap$);
/******************************************************************************/
const regexpFromArg = arg => {
if ( arg === '' ) { return /^/; }
if ( /^\/.+\/$/.test(arg) ) { return new RegExp(arg.slice(1,-1)); }
return new RegExp(arg.replace(/[.*+?^${}()|[\]\\]/g, '\\$&'));
};
/******************************************************************************/
const scriptlet = (
needle1 = '',
needle2 = ''
) => {
const reNeedle1 = regexpFromArg(needle1);
const reNeedle2 = regexpFromArg(needle2);
self.EventTarget.prototype.addEventListener = new Proxy(
self.EventTarget.prototype.addEventListener,
{
apply: function(target, thisArg, args) {
let type, handler;
try {
type = String(args[0]);
handler = String(args[1]);
} catch(ex) {
}
if (
reNeedle1.test(type) === false ||
reNeedle2.test(handler) === false
) {
return target.apply(thisArg, args);
}
}
}
);
};
/******************************************************************************/
let hn;
try { hn = document.location.hostname; } catch(ex) { }
while ( hn ) {
if ( hostnamesMap.has(hn) ) {
let argsHashes = hostnamesMap.get(hn);
if ( typeof argsHashes === 'number' ) { argsHashes = [ argsHashes ]; }
for ( const argsHash of argsHashes ) {
const details = argsMap.get(argsHash);
if ( details.n && details.n.includes(hn) ) { continue; }
try { scriptlet(...details.a); } catch(ex) {}
}
}
if ( hn === '*' ) { break; }
const pos = hn.indexOf('.');
if ( pos !== -1 ) {
hn = hn.slice(pos + 1);
} else {
hn = '*';
}
}
/******************************************************************************/
argsMap.clear();
hostnamesMap.clear();
/******************************************************************************/
})();
/******************************************************************************/

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@ -49,8 +49,7 @@ const hostnamesMap = new Map(self.$hostnamesMap$);
const scriptlet = (
needle = '',
delay = '',
delay = ''
) => {
const needleNot = needle.charAt(0) === '!';
if ( needleNot ) { needle = needle.slice(1); }

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@ -49,8 +49,7 @@ const hostnamesMap = new Map(self.$hostnamesMap$);
const scriptlet = (
needle = '',
delay = '',
delay = ''
) => {
const needleNot = needle.charAt(0) === '!';
if ( needleNot ) { needle = needle.slice(1); }

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@ -51,7 +51,6 @@ const scriptlet = (
needle = '',
delay = '',
options = ''
) => {
const newSyntax = /^[01]?$/.test(needle) === false;
let pattern = '';