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// small red image
const IMG_BYTES = atob(
"iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12" +
"P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg=="
);
const NESTED_IFRAME_NAVIGATION = `
<html>
<body>
<a id="testlink" href="http://mochi.test:8888/tests/dom/security/test/general/file_same_site_cookies_iframe.sjs"></a>
<script type="application/javascript">
let link = document.getElementById("testlink");
link.click();
<\/script>
</body>
</html>`;
const NESTED_IFRAME_INCLUSION = `
<html>
<body>
<script type="application/javascript">
// simply passing on the message from the child to parent
window.addEventListener("message", receiveMessage);
function receiveMessage(event) {
window.removeEventListener("message", receiveMessage);
window.parent.postMessage({result: event.data.result}, '*');
}
<\/script>
<iframe src="http://mochi.test:8888/tests/dom/security/test/general/file_same_site_cookies_iframe.sjs"></iframe>
</body>
</html>`;
function handleRequest(request, response) {
// avoid confusing cache behaviors
response.setHeader("Cache-Control", "no-cache", false);
// using startsWith and discard the math random
if (request.queryString.startsWith("setSameSiteCookie")) {
response.setHeader(
"Set-Cookie",
"myKey=mySameSiteIframeTestCookie; samesite=strict",
true
);
response.setHeader("Content-Type", "image/png");
response.write(IMG_BYTES);
return;
}
// navigation tests
if (request.queryString === "nestedIframeNavigation") {
response.write(NESTED_IFRAME_NAVIGATION);
return;
}
if (request.queryString === "nestedSandboxIframeNavigation") {
response.setHeader(
"Content-Security-Policy",
"sandbox allow-scripts",
false
);
response.write(NESTED_IFRAME_NAVIGATION);
return;
}
// inclusion tests
if (request.queryString === "nestedIframeInclusion") {
response.write(NESTED_IFRAME_INCLUSION);
return;
}
if (request.queryString === "nestedSandboxIframeInclusion") {
response.setHeader(
"Content-Security-Policy",
"sandbox allow-scripts",
false
);
response.write(NESTED_IFRAME_INCLUSION);
return;
}
const cookies = request.hasHeader("Cookie")
? request.getHeader("Cookie")
: "";
response.write(`
<!DOCTYPE html>
<html>
<head>
</head>
<body>
<script type="application/javascript">
window.parent.postMessage({result: "${cookies}" }, '*');
</script>
</body>
</html>
`);
}