uBlock/platform/mv3/scriptlets/no-windowopen-if.js

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/*******************************************************************************
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-windowopen-if
/// alias no-windowOpen-if
/// alias nowoif
/// alias window.open-defuser
/******************************************************************************/
// Important!
// Isolate from global scope
(function uBOL_noWindowOpenIf() {
/******************************************************************************/
// $rulesetId$
const argsList = self.$argsList$;
const hostnamesMap = new Map(self.$hostnamesMap$);
/******************************************************************************/
const scriptlet = (
needle = '',
delay = '',
options = ''
) => {
const newSyntax = /^[01]?$/.test(needle) === false;
let pattern = '';
let targetResult = true;
let autoRemoveAfter = -1;
if ( newSyntax ) {
pattern = needle;
if ( pattern.startsWith('!') ) {
targetResult = false;
pattern = pattern.slice(1);
}
autoRemoveAfter = parseInt(delay);
if ( isNaN(autoRemoveAfter) ) {
autoRemoveAfter = -1;
}
} else {
pattern = delay;
if ( needle === '0' ) {
targetResult = false;
}
}
if ( pattern === '' ) {
pattern = '.?';
} else if ( /^\/.+\/$/.test(pattern) ) {
pattern = pattern.slice(1,-1);
} else {
pattern = pattern.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
}
const rePattern = new RegExp(pattern);
const createDecoy = function(tag, urlProp, url) {
const decoy = document.createElement(tag);
decoy[urlProp] = url;
decoy.style.setProperty('height','1px', 'important');
decoy.style.setProperty('position','fixed', 'important');
decoy.style.setProperty('top','-1px', 'important');
decoy.style.setProperty('width','1px', 'important');
document.body.appendChild(decoy);
setTimeout(( ) => decoy.remove(), autoRemoveAfter * 1000);
return decoy;
};
window.open = new Proxy(window.open, {
apply: function(target, thisArg, args) {
const url = args[0];
if ( rePattern.test(url) !== targetResult ) {
return target.apply(thisArg, args);
}
if ( autoRemoveAfter < 0 ) { return null; }
const decoy = /\bobj\b/.test(options)
? createDecoy('object', 'data', url)
: createDecoy('iframe', 'src', url);
let popup = decoy.contentWindow;
if ( typeof popup === 'object' && popup !== null ) {
Object.defineProperty(popup, 'closed', { value: false });
} else {
const noopFunc = (function(){}).bind(self);
popup = new Proxy(self, {
get: function(target, prop) {
if ( prop === 'closed' ) { return false; }
const r = Reflect.get(...arguments);
if ( typeof r === 'function' ) { return noopFunc; }
return target[prop];
},
set: function() {
return Reflect.set(...arguments);
},
});
}
return popup;
}
});
};
/******************************************************************************/
let hn;
try { hn = document.location.hostname; } catch(ex) { }
while ( hn ) {
if ( hostnamesMap.has(hn) ) {
let argsIndices = hostnamesMap.get(hn);
if ( typeof argsIndices === 'number' ) { argsIndices = [ argsIndices ]; }
for ( const argsIndex of argsIndices ) {
const details = argsList[argsIndex];
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 = '*';
}
}
argsList.length = 0;
hostnamesMap.clear();
/******************************************************************************/
})();
/******************************************************************************/