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Expand bounce tracking page to cookies #237

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Merged
merged 1 commit into from
Oct 23, 2024
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Merged

Expand bounce tracking page to cookies #237

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39 changes: 31 additions & 8 deletions privacy-protections/bounce-tracking/bounce.html
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Original file line number Diff line number Diff line change
@@ -1,33 +1,55 @@
<!DOCTYPE html>
<html lang="en">

<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Bounce Tracking Test Page - Bounce Page</title>
</head>

<body>

<p>Log:</p>
<textarea id='note' style='width: 500px; height: 200px;' readonly></textarea>

<script>
const destinationSafelist = ['privacy-test-pages.site', 'www.first-party.site', 'good.third-party.site', '127.0.0.1:3000'];
const destinationSafelist = ['privacy-test-pages.site', 'www.first-party.site', 'good.third-party.site', 'www.publisher-company.site', '127.0.0.1:3000'];
const fieldName = 'bounceUID';
let uid = localStorage.getItem(fieldName);
const lsUID = localStorage.getItem(fieldName) || '';
const cookieUID = getCookie(fieldName);
const pageURL = new URL(location.href);

function getCookie (cname) {
const name = cname + '=';
const decodedCookie = decodeURIComponent(document.cookie);
const ca = decodedCookie.split(';');
for (let i = 0; i < ca.length; i++) {
let c = ca[i];
while (c.charAt(0) === ' ') {
c = c.substring(1);
}
if (c.indexOf(name) === 0) {
return c.substring(name.length, c.length);
}
}
return '';
}

function say (text) {
document.getElementById('note').value += text + '\n';
}

function run () {
if (!uid) {
let newID = '';

if (!lsUID && !cookieUID) {
say('No ID found, generating new ID. ');

uid = Math.round(Math.random() * 100);
localStorage.setItem(fieldName, uid);
newID = Math.round(Math.random() * 100) + 1;
localStorage.setItem(fieldName, newID);
document.cookie = `${fieldName}=${newID};max-age=${60 * 60 * 24 * 60}`;
}
say(`ID is ${uid}.`);
say(`ID is ${lsUID || cookieUID || newID}.`);

if (!pageURL.searchParams.has('destination')) {
say('No destination provided.');
Expand All @@ -38,7 +60,7 @@
if (!destinationSafelist.includes(destination)) {
say(`Invalid destination '${destination}'.`);
} else {
const redirectURL = new URL(`/privacy-protections/bounce-tracking/?bounceUIDlocalStorage=${uid}`, 'https://' + destination);
const redirectURL = new URL(`/privacy-protections/bounce-tracking/?bounceUIDlocalStorage=${lsUID}&bounceUIDcookie=${cookieUID}&isNew=${newID}`, 'http://' + destination);
say(`Redirecting to '${redirectURL.toString()}'.`);

setTimeout(() => { location.href = redirectURL; }, delay);
Expand All @@ -50,4 +72,5 @@
</script>

</body>

</html>
14 changes: 11 additions & 3 deletions privacy-protections/bounce-tracking/index.html
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Original file line number Diff line number Diff line change
Expand Up @@ -13,15 +13,23 @@
<p><a href='https://bad.third-party.site/privacy-protections/bounce-tracking/bounce.html?destination=good.third-party.site'>Go to good.third-party.site</a></p>
<p><a href='https://bad.third-party.site/privacy-protections/bounce-tracking/bounce.html?destination=www.first-party.site'>Go to first-party.site</a></p>
<p><a href='https://bad.third-party.site/privacy-protections/bounce-tracking/bounce.html?destination=privacy-test-pages.site'>Go to privacy-test-pages.site</a></p>
<!--<p><a href='./bounce.html?destination=127.0.0.1:3000'>Bounce local test</a></p>-->
<p><a href='https://bad.third-party.site/privacy-protections/bounce-tracking/bounce.html?destination=www.publisher-company.site'>Go to www.publisher-company.site</a></p>
<!-- <p><a href='./bounce.html?destination=127.0.0.1:3000'>Bounce local test</a></p> -->

<p id="result" style="font-weight: bold;"></p>

<script>
const pageURL = new URL(location.href);

if (pageURL.searchParams.has('bounceUIDlocalStorage')) {
document.getElementById('result').innerText = `ID received back is "${pageURL.searchParams.get('bounceUIDlocalStorage')}".`;
if (pageURL.searchParams.has('isNew') && pageURL.searchParams.get('isNew')) {
document.getElementById('result').innerText = `ID didn't exist and was generated - "${pageURL.searchParams.get('isNew')}".`;
} else {
if (pageURL.searchParams.has('bounceUIDlocalStorage')) {
document.getElementById('result').innerText = `bad.third-party.site localStorage ID: "${pageURL.searchParams.get('bounceUIDlocalStorage')}".\n`;
}
if (pageURL.searchParams.has('bounceUIDcookie')) {
document.getElementById('result').innerText += `bad.third-party.site cookie ID: "${pageURL.searchParams.get('bounceUIDcookie')}".`;
}
}
</script>
</body>
Expand Down
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