55 lines
2.7 KiB
JavaScript
55 lines
2.7 KiB
JavaScript
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// Minimal stealth init script for Playwright-driven Chromium.
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// Vendored from puppeteer-extra-plugin-stealth/evasions/* (MIT) — covers:
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// webdriver, chrome.runtime, navigator.plugins, navigator.languages,
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// Permissions.query, WebGL getParameter (vendor + renderer spoof).
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// Run via context.add_init_script() so it executes before any page script.
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(() => {
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// navigator.webdriver — most common detection, removed entirely.
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Object.defineProperty(Navigator.prototype, 'webdriver', { get: () => undefined });
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// window.chrome.runtime — many sites check that real Chrome exposes this.
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if (!window.chrome) window.chrome = {};
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window.chrome.runtime = window.chrome.runtime || {};
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// navigator.plugins — headless reports zero; spoof a plausible PDF viewer.
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Object.defineProperty(navigator, 'plugins', {
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get: () => [{ name: 'Chrome PDF Plugin' }, { name: 'Chrome PDF Viewer' }, { name: 'Native Client' }],
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});
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// navigator.languages — headless returns empty array.
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Object.defineProperty(navigator, 'languages', { get: () => ['en-US', 'en'] });
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// Permissions.query — headless returns 'denied' for notifications instead of 'default'.
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const origQuery = window.navigator.permissions && window.navigator.permissions.query;
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if (origQuery) {
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window.navigator.permissions.query = (parameters) =>
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parameters && parameters.name === 'notifications'
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? Promise.resolve({ state: Notification.permission })
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: origQuery(parameters);
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}
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// WebGL getParameter — spoof vendor + renderer strings to a real GPU.
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const spoofGl = (proto) => {
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if (!proto) return;
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const orig = proto.getParameter;
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proto.getParameter = function (parameter) {
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if (parameter === 37445) return 'Intel Inc.'; // UNMASKED_VENDOR_WEBGL
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if (parameter === 37446) return 'Intel Iris OpenGL Engine'; // UNMASKED_RENDERER_WEBGL
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return orig.apply(this, arguments);
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};
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};
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spoofGl(window.WebGLRenderingContext && window.WebGLRenderingContext.prototype);
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spoofGl(window.WebGL2RenderingContext && window.WebGL2RenderingContext.prototype);
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// disable-devtool.js (theajack/disable-devtool) auto-inits via a script
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// tag with `disable-devtool-auto`. Its Performance detector trips under
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// Playwright (CDP adds console.log latency vs console.table) and the
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// redirect URL is hard-coded — for hmembeds that's google.com.
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// Hide the auto-init marker so the library's IIFE exits early.
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const origQS = Document.prototype.querySelector;
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Document.prototype.querySelector = function (sel) {
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if (typeof sel === 'string' && sel.indexOf('disable-devtool-auto') !== -1) return null;
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return origQS.apply(this, arguments);
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};
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})();
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