<!DOCTYPE html>
<html>
<head>
<title>Settings loading test</title>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<link href="testIcon.svg" type="image/png" rel="icon">
<link href="testIcon.svg" type="image/png" rel="shortcut icon">
<link rel="stylesheet" href="../default.css" type="text/css">
<?php
echo "<script>" . file_get_contents("testAPI.js");
echo file_get_contents("canvasAPI.js") . "</script>";
?>
<script>
const firstDescriptor = Object.getOwnPropertyDescriptor(HTMLCanvasElement.prototype, "getContext");
console.log(new Date(), "starting first fingerprint", window.name);
let firstFingerprint = false;
try {
firstFingerprint = canvasAPI.fingerprint().url;
}
catch (error){
console.log(new Date(), error);
}
</script>
<style>
#output {
padding: 1em;
}
.ok {
background-color: lightgreen;
}
.kok {
background-color: orange;
}
.nok {
background-color: lightcoral;
}
</style>
</head>
<body>
<h1>Settings loading test</h1>
<h2>Expected result</h2>
<ul>
<li>the background of the test result is green and states "good"</li>
<li>the displayed hash changes upon reload (depending on CanvasBlocker settings - e.g. not in the stealth preset)</li>
</ul>
<h2>Test</h2>
<div id="output"></div>
<script>
if (firstFingerprint){
const output = document.getElementById("output");
output.textContent = "context API not blocked";
output.appendChild(document.createElement("br"));
window.setTimeout(async function(){
"use strict";
console.log(new Date(), "starting second fingerprint", window.name);
const secondDescriptor = Object.getOwnPropertyDescriptor(HTMLCanvasElement.prototype, "getContext");
if (firstDescriptor.value === secondDescriptor.value){
output.appendChild(document.createTextNode("descriptor did not change -> good!"));
output.classList.add("ok");
}
else {
output.appendChild(document.createTextNode("descriptor changed -> bad!"));
console.log(firstDescriptor, secondDescriptor);
output.classList.add("nok");
}
output.appendChild(document.createElement("br"));
const secondFingerprint = canvasAPI.fingerprint().url;
if (firstFingerprint === secondFingerprint){
const firstHash = await testAPI.hash(firstFingerprint);
output.appendChild(document.createTextNode("fingerprint consistent (" + firstHash + ") -> good!"));
output.classList.add("ok");
}
else {
const hashes = await Promise.all([testAPI.hash(firstFingerprint), testAPI.hash(secondFingerprint)]);
output.appendChild(
document.createTextNode(
"fingerprint not consistent (" +
hashes[0] + " != " + hashes[1] +
") -> very bad! (potential fingerprint leak)"
)
);
output.classList.add("nok");
}
}, 500);
}
else {
output.textContent = "context API blocked";
output.classList.add("kok");
}
</script>
</body></html>