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@BenBaryoPX
Created August 1, 2023 11:33
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A benign Google Analytics script to test ChatGPT Magecart detection capability for FP. Part of the Magecart and the PCI-DSS 4.0 Challenge: Is ChatGPT the Answer? blog
(function() {
'use strict';
// https://developers.google.com/analytics/devguides/collection/analyticsjs/
const noopfn = function() {
};
//
const Tracker = function() {
};
const p = Tracker.prototype;
p.get = noopfn;
p.set = noopfn;
p.send = noopfn;
//
const w = window;
const gaName = w.GoogleAnalyticsObject || 'ga';
const gaQueue = w[gaName];
// https://github.com/uBlockOrigin/uAssets/pull/4115
const ga = function() {
const len = arguments.length;
if ( len === 0 ) { return; }
const args = Array.from(arguments);
let fn;
let a = args[len-1];
if ( a instanceof Object && a.hitCallback instanceof Function ) {
fn = a.hitCallback;
} else if ( a instanceof Function ) {
fn = ( ) => { a(ga.create()); };
} else {
const pos = args.indexOf('hitCallback');
if ( pos !== -1 && args[pos+1] instanceof Function ) {
fn = args[pos+1];
}
}
if ( fn instanceof Function === false ) { return; }
try {
fn();
} catch (ex) {
}
};
ga.create = function() {
return new Tracker();
};
ga.getByName = function() {
return new Tracker();
};
ga.getAll = function() {
return [new Tracker()];
};
ga.remove = noopfn;
// https://github.com/uBlockOrigin/uAssets/issues/2107
ga.loaded = true;
w[gaName] = ga;
// https://github.com/gorhill/uBlock/issues/3075
const dl = w.dataLayer;
if ( dl instanceof Object ) {
if ( dl.hide instanceof Object && typeof dl.hide.end === 'function' ) {
dl.hide.end();
dl.hide.end = ()=>{};
}
if ( typeof dl.push === 'function' ) {
const doCallback = function(item) {
if ( item instanceof Object === false ) { return; }
if ( typeof item.eventCallback !== 'function' ) { return; }
setTimeout(item.eventCallback, 1);
item.eventCallback = ()=>{};
};
dl.push = new Proxy(dl.push, {
apply: function(target, thisArg, args) {
doCallback(args[0]);
return Reflect.apply(target, thisArg, args);
}
});
if ( Array.isArray(dl) ) {
const q = dl.slice();
for ( const item of q ) {
doCallback(item);
}
}
}
}
// empty ga queue
if ( gaQueue instanceof Function && Array.isArray(gaQueue.q) ) {
const q = gaQueue.q.slice();
gaQueue.q.length = 0;
for ( const entry of q ) {
ga(...entry);
}
}
})();
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