RTCCertificate-postMessage.html

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This test has a WPT meta file that expects 3 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /webrtc/RTCCertificate-postMessage.html - WPT Dashboard Interop Dashboard

<!doctype html>

<meta charset="utf-8">

<title>RTCCertificate persistent Tests</title>

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<script src="/common/get-host-info.sub.js"></script>

<body>

<script>

    function findMatchingFingerprint(fingerprints, fingerprint) {

        for (let f of fingerprints) {

            if (f.value == fingerprint.value && f.algorithm == fingerprint.algorithm)

                return true;

        return false;

    function with_iframe(url) {

        return new Promise(function(resolve) {

            var frame = document.createElement('iframe');

            frame.src = url;

            frame.onload = function() { resolve(frame); };

            document.body.appendChild(frame);

});

    function testPostMessageCertificate(isCrossOrigin) {

        promise_test(async t => {

            let certificate = await  RTCPeerConnection.generateCertificate({ name: 'ECDSA', namedCurve: 'P-256' });

            let url = "resources/RTCCertificate-postMessage-iframe.html";

            if (isCrossOrigin)

                url = get_host_info().HTTP_REMOTE_ORIGIN + "/webrtc/" + url;

            let iframe = await with_iframe(url);

            let promise = new Promise((resolve, reject) => {

                window.onmessage = (event) => {

                    resolve(event.data);

};

                t.step_timeout(() => reject("Timed out waiting for frame to send back certificate"), 5000);

});

            iframe.contentWindow.postMessage(certificate, "*");

            let certificate2 = await promise;

            const pc1 = new RTCPeerConnection({certificates: [certificate]});

            t.add_cleanup(() => pc1.close());

            const pc2 = new RTCPeerConnection({certificates: [certificate2]});

            t.add_cleanup(() => pc2.close());

            assert_equals(certificate.expires, certificate2.expires);

            for (let fingerprint of certificate2.getFingerprints())

                assert_true(findMatchingFingerprint(certificate.getFingerprints(), fingerprint), "check fingerprints");

            iframe.remove();

        }, "Check " + (isCrossOrigin ? "cross-origin" : "same-origin") + " RTCCertificate serialization");

    testPostMessageCertificate(false);

    testPostMessageCertificate(true);

    promise_test(async t => {

        let url = get_host_info().HTTP_REMOTE_ORIGIN + "/webrtc/resources/RTCCertificate-postMessage-iframe.html";

        let iframe = await with_iframe(url);

        let promise = new Promise((resolve, reject) => {

            window.onmessage = (event) => {

                resolve(event.data);

};

            t.step_timeout(() => reject("Timed out waiting for frame to send back certificate"), 5000);

});

        iframe.contentWindow.postMessage(null, "*");

        let certificate2 = await promise;

        assert_throws_dom("InvalidAccessError", () => { new RTCPeerConnection({certificates: [certificate2]}) });

        iframe.remove();

    }, "Check cross-origin created RTCCertificate");

</script>

</body>