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https://bitbucket.org/siakitem/my-pi.git
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60 lines
3.0 KiB
HTML
60 lines
3.0 KiB
HTML
<!doctype html>
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<meta charset="utf-8">
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<title>12 fingerprint consistency</title>
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<link rel="stylesheet" href="../_style.css">
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<script src="../_lib.js"></script>
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<body>
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<main>
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<p>Auto-check. Looks for cross-API consistency mismatches that betray instrumented Chrome.</p>
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<pre id="rep" style="font:12px monospace;background:#111;color:#eee;padding:12px;border-radius:6px"></pre>
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</main>
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<script>
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Challenge.init({ id: "fingerprint", instructions: "no interaction" });
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(async () => {
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const checks = [];
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const ua = navigator.userAgent;
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const isChrome = /Chrome\/\d+/.test(ua);
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checks.push({ name: "ua-is-chrome", bad: !isChrome, note: ua });
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// UA-CH: Chrome should expose userAgentData with brands incl Chromium.
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const uad = navigator.userAgentData;
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const hasUAD = !!uad;
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checks.push({ name: "userAgentData-present", bad: isChrome && !hasUAD, note: hasUAD ? JSON.stringify(uad.brands) : "missing" });
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// Chrome runtime object exists in normal Chrome.
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checks.push({ name: "window.chrome", bad: isChrome && typeof window.chrome === "undefined",
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note: typeof window.chrome });
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// languages must match accept-language semantics.
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checks.push({ name: "languages-includes-language", bad: !navigator.languages?.includes(navigator.language),
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note: `${navigator.language} vs ${JSON.stringify(navigator.languages)}` });
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// WebGL vendor/renderer should not be Brian Paul / SwiftShader on user profile.
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try {
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const gl = document.createElement("canvas").getContext("webgl");
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const dbg = gl.getExtension("WEBGL_debug_renderer_info");
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const vendor = dbg ? gl.getParameter(dbg.UNMASKED_VENDOR_WEBGL) : gl.getParameter(gl.VENDOR);
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const renderer = dbg ? gl.getParameter(dbg.UNMASKED_RENDERER_WEBGL) : gl.getParameter(gl.RENDERER);
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const swiftshader = /SwiftShader|llvmpipe|Software/i.test(renderer);
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checks.push({ name: "webgl-not-software", bad: false, warn: swiftshader, note: `${vendor} / ${renderer}${swiftshader ? " (software renderer; warning in VM/remote contexts)" : ""}` });
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} catch (e) {
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checks.push({ name: "webgl-not-software", bad: false, note: "n/a " + e.message });
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}
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// hardwareConcurrency / deviceMemory plausibility.
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checks.push({ name: "hardwareConcurrency", bad: !(navigator.hardwareConcurrency > 0), note: String(navigator.hardwareConcurrency) });
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// navigator.webdriver again, separate from challenge 03 so it appears here too.
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checks.push({ name: "webdriver-false", bad: navigator.webdriver === true, note: String(navigator.webdriver) });
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const rep = document.getElementById("rep");
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rep.textContent = checks.map(c => `${c.bad ? "✗" : c.warn ? "!" : "✓"} ${c.name} ${c.note}`).join("\n");
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const failed = checks.filter(c => c.bad);
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const warned = checks.filter(c => c.warn);
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if (failed.length) Challenge.fail(...failed.map(c => `${c.name}: ${c.note}`));
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else if (warned.length) Challenge.warn(...warned.map(c => `${c.name}: ${c.note}`));
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else Challenge.pass("fingerprint consistent with real Chrome");
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})();
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</script>
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</body>
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