mirror of
https://github.com/gorhill/uBlock.git
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122 lines
3.9 KiB
JavaScript
122 lines
3.9 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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/* jshint esversion:11 */
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'use strict';
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/******************************************************************************/
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/// name json-prune
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try {
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/******************************************************************************/
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// https://github.com/uBlockOrigin/uBlock-issues/issues/1545
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// - Add support for "remove everything if needle matches" case
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(function(
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rawPrunePaths = '',
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rawNeedlePaths = ''
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) {
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const prunePaths = rawPrunePaths !== ''
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? rawPrunePaths.split(/ +/)
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: [];
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let needlePaths;
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if ( prunePaths.length === 0 ) { return; }
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needlePaths = prunePaths.length !== 0 && rawNeedlePaths !== ''
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? rawNeedlePaths.split(/ +/)
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: [];
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const findOwner = function(root, path, prune = false) {
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let owner = root;
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let chain = path;
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for (;;) {
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if ( typeof owner !== 'object' || owner === null ) {
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return false;
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}
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const pos = chain.indexOf('.');
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if ( pos === -1 ) {
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if ( prune === false ) {
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return owner.hasOwnProperty(chain);
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}
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if ( chain === '*' ) {
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for ( const key in owner ) {
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if ( owner.hasOwnProperty(key) === false ) { continue; }
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delete owner[key];
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}
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} else if ( owner.hasOwnProperty(chain) ) {
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delete owner[chain];
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}
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return true;
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}
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const prop = chain.slice(0, pos);
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if (
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prop === '[]' && Array.isArray(owner) ||
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prop === '*' && owner instanceof Object
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) {
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const next = chain.slice(pos + 1);
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let found = false;
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for ( const key of Object.keys(owner) ) {
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found = findOwner(owner[key], next, prune) || found;
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}
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return found;
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}
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if ( owner.hasOwnProperty(prop) === false ) { return false; }
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owner = owner[prop];
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chain = chain.slice(pos + 1);
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}
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};
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const mustProcess = function(root) {
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for ( const needlePath of needlePaths ) {
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if ( findOwner(root, needlePath) === false ) {
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return false;
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}
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}
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return true;
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};
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const pruner = function(o) {
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if ( mustProcess(o) === false ) { return o; }
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for ( const path of prunePaths ) {
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findOwner(o, path, true);
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}
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return o;
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};
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JSON.parse = new Proxy(JSON.parse, {
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apply: function() {
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return pruner(Reflect.apply(...arguments));
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},
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});
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Response.prototype.json = new Proxy(Response.prototype.json, {
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apply: function() {
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return Reflect.apply(...arguments).then(o => pruner(o));
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},
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});
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})(...self.$args$);
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/******************************************************************************/
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} catch(ex) {
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}
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