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(function () {
let hb = require('heuristicblocking');
let chromeDetails = {
frameId: 35,
method: "GET",
requestHeaders: [
{
name: "User-Agent",
value: "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2924.87 Safari/537.36"
}, {
name: "Accept",
value: "*/*"
}, {
name: "Referer",
value: "http://eff-tracker-test.s3-website-us-west-2.amazonaws.com/third-party.html"
}, {
name: "Accept-Encoding",
value: "gzip, deflate, sdch"
}, {
name: "Accept-Language",
value: "en-US,en;q=0.8"
}, {
name: "Cookie",
value: "thirdpartytest=1234567890"
}
],
requestId: "502",
tabId: 15,
timeStamp: 1490117784939.147,
type: "script",
url: "http://eff-tracker-test.s3-website-us-west-2.amazonaws.com/third-party.js"
};
const CHROME_COOKIE_INDEX = chromeDetails.requestHeaders.findIndex(
i => i.name == "Cookie"
);
let firefoxDetails = {
requestId: "13",
url: "http://eff-tracker-test.s3-website-us-west-2.amazonaws.com/third-party.js",
originUrl: "http://eff-tracker-test.s3-website-us-west-2.amazonaws.com/third-party.html",
method: "GET",
type: "script",
timeStamp: 1490118778473,
frameId: 4294967303,
tabId: 2,
requestHeaders: [
{
name: "host",
value: "eff-tracker-test.s3-website-us-west-2.amazonaws.com"
}, {
name: "user-agent",
value: "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:52.0) Gecko/20100101 Firefox/52.0"
}, {
name: "accept",
value: "*/*"
}, {
name: "accept-language",
value: "en-US,en;q=0.5"
}, {
name: "accept-encoding",
value: "gzip, deflate"
}, {
name: "referer",
value: "http://eff-tracker-test.s3-website-us-west-2.amazonaws.com/third-party.html"
}, {
name: "cookie",
value: "thirdpartytest=1234567890"
}, {
name: "connection",
value: "keep-alive"
}
]
};
QUnit.module("Heuristic", {
before: (/*assert*/) => {
},
beforeEach: (/*assert*/) => {
},
afterEach: (/*assert*/) => {
},
after: (/*assert*/) => {
}
});
QUnit.test("HTTP cookie tracking detection", (assert) => {
let details = JSON.parse(JSON.stringify(chromeDetails));
// remove cookie header
let cookieHeader = details.requestHeaders.splice(CHROME_COOKIE_INDEX, 1);
assert.notOk(hb.hasCookieTracking(details), "No cookie header");
// restore it
details.requestHeaders.push(cookieHeader[0]);
assert.ok(hb.hasCookieTracking(details), "High-entropy cookie header");
// set it to a low-entropy value
details.requestHeaders[CHROME_COOKIE_INDEX] = {
name: "Cookie",
value: "key=ab"
};
assert.notOk(hb.hasCookieTracking(details), "Low-entropy cookie header");
// check when individual entropy is low but overall entropy is over threshold
// add another low entropy cookie
details.requestHeaders.push({
name: "Cookie",
value: "key=ab"
});
assert.ok(hb.hasCookieTracking(details),
"Two low-entropy cookies combine to cross tracking threshold");
});
QUnit.test("HTTP header names are case-insensitive", (assert) => {
assert.ok(
hb.hasCookieTracking(chromeDetails),
"Cookie tracking detected with capitalized (Chrome) headers"
);
assert.ok(
hb.hasCookieTracking(firefoxDetails),
"Cookie tracking detected with lowercase (Firefox) headers"
);
});
QUnit.test("Cookie attributes shouldn't add to entropy", (assert) => {
let ATTR_COOKIES = [
'test-cookie=true; Expires=Thu, 01-Jan-1970 00:00:01 GMT; Path=/; Domain=.parrable.com',
'__usd_latimes.com=; expires=Wed, 03-May-2017 01:20:20 GMT; domain=.go.sonobi.com; path=/',
'ses55=; Domain=.rubiconproject.com; Path=/; Expires=Wed, 03-May-2017 11:59:59 GMT; Max-Age=38407',
'vf=5;Version=1;Comment=;Domain=.contextweb.com;Path=/;Max-Age=9583',
'PUBMDCID=2; domain=pubmatic.com; expires=Tue, 01-Aug-2017 01:20:21 GMT; path=/',
'tc=; path=/; Max-Age=31536000; expires=Thu, 03 May 2018 01:20:21 GMT',
'uid=; path=/; expires=Wed, 03 May 2017 01:20:31 GMT; domain=medium.com; secure; httponly',
];
let details = JSON.parse(JSON.stringify(chromeDetails));
for (let i = 0; i < ATTR_COOKIES.length; i++) {
details.requestHeaders[CHROME_COOKIE_INDEX].value = ATTR_COOKIES[i];
assert.notOk(hb.hasCookieTracking(details),
"cookie attributes test #" + i);
}
});
QUnit.test("CloudFlare cookies should get ignored", (assert) => {
let CLOUDFLARE_COOKIES = [
'__cfduid=d3c728f97e01b1ab6969828f24b42ab111493693758',
'__cfduid=d9758e8613dd4acbba3248dde15e74f8d1493774432; expires=Thu, 03-May-18 01:20:32 GMT; path=/; domain=.medium.com; HttpOnly',
'__cfduid=de8a1734f91060dba20e2833705018b911493771353; expires=Thu, 03-May-18 02:25:53 GMT; path=/; domain=.fightforthefuture.org; HttpOnly',
'__cfduid=d712bcfe8e20469cc4b9129a4ab89b7501576598707; expires=Thu, 16-Jan-20 16:05:07 GMT; path=/; domain=.githack.com; HttpOnly; SameSite=Lax',
];
let details = JSON.parse(JSON.stringify(chromeDetails));
for (let i = 0; i < CLOUDFLARE_COOKIES.length; i++) {
details.requestHeaders[CHROME_COOKIE_INDEX].value = CLOUDFLARE_COOKIES[i];
assert.notOk(hb.hasCookieTracking(details),
"CloudFlare cookie test #" + i);
}
});
}());
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