import { Page } from 'brave-real-puppeteer-core';
/**
* AGGRESSIVE AD BLOCKING SCRIPTLETS
* Blocks: window.open popups, location redirects, overlay ads, click hijacking
*/
export async function injectScriptlets(page: Page) {
// Use CDP for earliest injection
const client = await page.target().createCDPSession();
await client.send('Page.enable');
await client.send('Page.addScriptToEvaluateOnNewDocument', {
source: `
(function() {
'use strict';
// ==========================================
// CONFIGURATION
// ==========================================
const CONFIG = {
// Time window after user interaction to allow popups (ms)
POPUP_GRACE_PERIOD: 500,
// Minimum time between popups (ms)
POPUP_COOLDOWN: 1000,
// Maximum popups per page session
MAX_POPUPS_PER_SESSION: 3,
// Block these URL patterns
BLOCKED_URL_PATTERNS: [
/ads?\\./i, /pop(up|under)?\\./i, /click\\./i, /track(er|ing)?\\./i,
/beacon\\./i, /affiliate/i, /partner\\./i, /promo\\./i, /banner/i,
/about:blank/, /javascript:/i, /\\?utm_/i, /\\/afu\\//i,
/redirect/i, /go\\.php/i, /out\\.php/i, /link\\.php/i,
/profitableratecpm/i, /engridfanlike/i, /pubfuture/i,
/clickadu/i, /propellerads/i, /popads/i, /popcash/i,
/adcash/i, /exoclick/i, /ExoLoader/i, /PopMagic/i
]
};
// ==========================================
// STATE TRACKING
// ==========================================
let lastUserInteraction = 0;
let lastPopupTime = 0;
let popupCount = 0;
let isUserInteracting = false;
// ==========================================
// HELPER FUNCTIONS
// ==========================================
function isBlockedUrl(url) {
if (!url) return true;
const urlStr = String(url);
return CONFIG.BLOCKED_URL_PATTERNS.some(pattern => pattern.test(urlStr));
}
function isUserInitiated() {
return (Date.now() - lastUserInteraction) < CONFIG.POPUP_GRACE_PERIOD;
}
function canOpenPopup() {
const now = Date.now();
if (now - lastPopupTime < CONFIG.POPUP_COOLDOWN) return false;
if (popupCount >= CONFIG.MAX_POPUPS_PER_SESSION) return false;
return true;
}
function makeNative(fn, name) {
const nativeToString = function() { return 'function ' + name + '() { [native code] }'; };
Object.defineProperty(fn, 'toString', { value: nativeToString });
Object.defineProperty(fn, 'name', { value: name, configurable: true });
return fn;
}
// ==========================================
// USER INTERACTION TRACKING
// ==========================================
['click', 'keydown', 'mousedown', 'touchstart', 'pointerdown'].forEach(event => {
document.addEventListener(event, function(e) {
// Only count as interaction if it's a trusted event
if (e.isTrusted) {
lastUserInteraction = Date.now();
isUserInteracting = true;
setTimeout(() => { isUserInteracting = false; }, CONFIG.POPUP_GRACE_PERIOD);
}
}, { capture: true, passive: true });
});
// ==========================================
// WINDOW.OPEN BLOCKING
// ==========================================
const originalOpen = window.open;
window.open = makeNative(function(url, target, features) {
const urlStr = String(url || '');
// Block if URL matches blocked patterns
if (isBlockedUrl(urlStr)) {
console.log('[AdBlocker] Blocked popup (bad URL):', urlStr.substring(0, 60));
return null;
}
// Block if not user-initiated
if (!isUserInitiated()) {
console.log('[AdBlocker] Blocked popup (no user interaction):', urlStr.substring(0, 60));
return null;
}
// Block if too many popups
if (!canOpenPopup()) {
console.log('[AdBlocker] Blocked popup (rate limit):', urlStr.substring(0, 60));
return null;
}
// Block if has popup window features (sized windows = ads)
if (features && (features.includes('width') || features.includes('height'))) {
console.log('[AdBlocker] Blocked popup (window features):', urlStr.substring(0, 60));
return null;
}
// Allow legitimate popup
lastPopupTime = Date.now();
popupCount++;
return originalOpen.call(this, url, target, features);
}, 'open');
// ==========================================
// LOCATION.HREF REDIRECT BLOCKING
// ==========================================
const locationDescriptor = Object.getOwnPropertyDescriptor(window, 'location');
let legitimateUrl = window.location.href;
// Intercept location.assign
const originalAssign = window.location.assign.bind(window.location);
window.location.assign = makeNative(function(url) {
if (isBlockedUrl(url) || !isUserInitiated()) {
console.log('[AdBlocker] Blocked redirect (assign):', String(url).substring(0, 60));
return;
}
return originalAssign(url);
}, 'assign');
// Intercept location.replace
const originalReplace = window.location.replace.bind(window.location);
window.location.replace = makeNative(function(url) {
if (isBlockedUrl(url) || !isUserInitiated()) {
console.log('[AdBlocker] Blocked redirect (replace):', String(url).substring(0, 60));
return;
}
return originalReplace(url);
}, 'replace');
// ==========================================
// SETTIMEOUT/SETINTERVAL REDIRECT BLOCKING
// ==========================================
const originalSetTimeout = window.setTimeout;
window.setTimeout = makeNative(function(callback, delay, ...args) {
// Check if callback contains redirect code
if (typeof callback === 'string') {
const code = callback.toLowerCase();
if (code.includes('location') || code.includes('redirect') || code.includes('window.open')) {
console.log('[AdBlocker] Blocked setTimeout redirect');
return 0;
}
}
return originalSetTimeout.call(this, callback, delay, ...args);
}, 'setTimeout');
const originalSetInterval = window.setInterval;
window.setInterval = makeNative(function(callback, delay, ...args) {
if (typeof callback === 'string') {
const code = callback.toLowerCase();
if (code.includes('location') || code.includes('redirect') || code.includes('window.open')) {
console.log('[AdBlocker] Blocked setInterval redirect');
return 0;
}
}
return originalSetInterval.call(this, callback, delay, ...args);
}, 'setInterval');
// ==========================================
// DOCUMENT.WRITE BLOCKING (AD INJECTION)
// ==========================================
const originalWrite = document.write.bind(document);
document.write = makeNative(function(html) {
const htmlStr = String(html || '').toLowerCase();
if (htmlStr.includes('location.href') ||
htmlStr.includes('window.open') ||
htmlStr.includes('redirect') ||
htmlStr.includes('popunder') ||
htmlStr.includes('exoclick') ||
htmlStr.includes('popads')) {
console.log('[AdBlocker] Blocked document.write ad injection');
return;
}
return originalWrite(html);
}, 'write');
// ==========================================
// ADDEVENTLISTENER CLICK HIJACK BLOCKING
// ==========================================
const originalAddEventListener = EventTarget.prototype.addEventListener;
EventTarget.prototype.addEventListener = function(type, listener, options) {
// Block suspicious click handlers on body/document
if (type === 'click' && (this === document || this === document.body || this === window)) {
const listenerStr = listener ? listener.toString().toLowerCase() : '';
if (listenerStr.includes('window.open') ||
listenerStr.includes('location') ||
listenerStr.includes('popup') ||
listenerStr.includes('redirect')) {
console.log('[AdBlocker] Blocked click hijack listener');
return;
}
}
return originalAddEventListener.call(this, type, listener, options);
};
// ==========================================
// ABORT ON PROPERTY WRITE (POPUNDER SCRIPTS)
// ==========================================
const ABORT_PROPERTIES = ['popunder', '__$pb', 'ExoLoader', 'PopMagic', 'Fingerprint2', 'adblock', 'popMagic'];
ABORT_PROPERTIES.forEach(prop => {
try {
Object.defineProperty(window, prop, {
get: function() { return undefined; },
set: function(val) {
console.log('[AdBlocker] Blocked property set:', prop);
return true;
},
configurable: false
});
} catch(e) {}
});
// ==========================================
// EVAL BLOCKING FOR AD CODE
// ==========================================
const originalEval = window.eval;
window.eval = makeNative(function(code) {
if (typeof code === 'string') {
const codeLower = code.toLowerCase();
if (codeLower.includes('popup') ||
codeLower.includes('popunder') ||
codeLower.includes('redirect') ||
codeLower.includes('exoclick') ||
codeLower.includes('popads')) {
console.log('[AdBlocker] Blocked eval ad code');
return undefined;
}
}
return originalEval.call(this, code);
}, 'eval');
console.log('[AdBlocker] Scriptlet injection active');
})();
`
});
// Also inject via evaluateOnNewDocument for redundancy
await page.evaluateOnNewDocument(() => {
// Mark that blocker is active
(window as any).__braveBlockerActive = true;
});
}
