111 lines
3.6 KiB
JavaScript
111 lines
3.6 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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*/
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(function() {
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'use strict';
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// https://developers.google.com/analytics/devguides/collection/analyticsjs/
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const noopfn = function() {
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};
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//
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const Tracker = function() {
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};
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const p = Tracker.prototype;
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p.get = noopfn;
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p.set = noopfn;
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p.send = noopfn;
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//
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const w = window;
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const gaName = w.GoogleAnalyticsObject || 'ga';
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const gaQueue = w[gaName];
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// https://github.com/uBlockOrigin/uAssets/pull/4115
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const ga = function() {
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const len = arguments.length;
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if ( len === 0 ) { return; }
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const args = Array.from(arguments);
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let fn;
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let a = args[len-1];
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if ( a instanceof Object && a.hitCallback instanceof Function ) {
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fn = a.hitCallback;
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} else if ( a instanceof Function ) {
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fn = ( ) => { a(ga.create()); };
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} else {
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const pos = args.indexOf('hitCallback');
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if ( pos !== -1 && args[pos+1] instanceof Function ) {
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fn = args[pos+1];
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}
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}
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if ( fn instanceof Function === false ) { return; }
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try {
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fn();
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} catch (ex) {
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}
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};
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ga.create = function() {
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return new Tracker();
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};
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ga.getByName = function() {
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return new Tracker();
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};
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ga.getAll = function() {
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return [new Tracker()];
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};
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ga.remove = noopfn;
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// https://github.com/uBlockOrigin/uAssets/issues/2107
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ga.loaded = true;
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w[gaName] = ga;
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// https://github.com/gorhill/uBlock/issues/3075
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const dl = w.dataLayer;
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if ( dl instanceof Object ) {
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if ( dl.hide instanceof Object && typeof dl.hide.end === 'function' ) {
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dl.hide.end();
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dl.hide.end = ()=>{};
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}
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if ( typeof dl.push === 'function' ) {
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const doCallback = function(item) {
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if ( item instanceof Object === false ) { return; }
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if ( typeof item.eventCallback !== 'function' ) { return; }
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setTimeout(item.eventCallback, 1);
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item.eventCallback = ()=>{};
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};
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dl.push = new Proxy(dl.push, {
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apply: function(target, thisArg, args) {
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doCallback(args[0]);
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return Reflect.apply(target, thisArg, args);
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}
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});
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if ( Array.isArray(dl) ) {
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const q = dl.slice();
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for ( const item of q ) {
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doCallback(item);
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}
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}
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}
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}
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// empty ga queue
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if ( gaQueue instanceof Function && Array.isArray(gaQueue.q) ) {
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const q = gaQueue.q.slice();
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gaQueue.q.length = 0;
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for ( const entry of q ) {
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ga(...entry);
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}
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}
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})();
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