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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
| commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
| tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /dom/media/webrtc/tests/mochitests/test_fingerprinting_resistance.html | |
| parent | Initial commit. (diff) | |
| download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip | |
Adding upstream version 115.7.0esr.upstream/115.7.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'dom/media/webrtc/tests/mochitests/test_fingerprinting_resistance.html')
| -rw-r--r-- | dom/media/webrtc/tests/mochitests/test_fingerprinting_resistance.html | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/dom/media/webrtc/tests/mochitests/test_fingerprinting_resistance.html b/dom/media/webrtc/tests/mochitests/test_fingerprinting_resistance.html new file mode 100644 index 0000000000..7e9cd5a219 --- /dev/null +++ b/dom/media/webrtc/tests/mochitests/test_fingerprinting_resistance.html @@ -0,0 +1,112 @@ +<!DOCTYPE html> +<html> +<head> +<meta charset="utf-8"> +<script src="mediaStreamPlayback.js"></script> +</head> +<body> +<script> +/* global SimpleTest SpecialPowers */ + +async function testEnumerateDevices(expectDevices) { + let devices = await navigator.mediaDevices.enumerateDevices(); + if (!expectDevices) { + SimpleTest.is(devices.length, 0, "testEnumerateDevices: No devices"); + return; + } + let cams = devices.filter((device) => device.kind == "videoinput"); + let mics = devices.filter((device) => device.kind == "audioinput"); + SimpleTest.ok((cams.length == 1) && (mics.length == 1), + "testEnumerateDevices: a microphone and a camera"); +} + +async function testGetUserMedia(expectDevices) { + const constraints = [ + {audio: true}, + {video: true}, + {audio: true, video: true}, + {video: {width: {min: 1e9}}}, // impossible + {audio: {channelCount: {exact: 1e3}}}, // impossible + ]; + for (let constraint of constraints) { + let message = "getUserMedia(" + JSON.stringify(constraint) + ")"; + try { + let stream = await navigator.mediaDevices.getUserMedia(constraint); + SimpleTest.ok(expectDevices, message + " resolved"); + if (!expectDevices) { + continue; + } + + // We only do testGetUserMedia(true) when privacy.resistFingerprinting + // is true, test if MediaStreamTrack.label is spoofed. + for (let track of stream.getTracks()) { + switch (track.kind) { + case "audio": + SimpleTest.is(track.label, "Internal Microphone", "AudioStreamTrack.label"); + break; + case "video": + SimpleTest.is(track.label, "Internal Camera", "VideoStreamTrack.label"); + break; + default: + SimpleTest.ok(false, "Unknown kind: " + track.kind); + break; + } + track.stop(); + } + } catch (e) { + if (!expectDevices) { + SimpleTest.is(e.name, "NotAllowedError", message + " throws NotAllowedError"); + } else { + SimpleTest.ok(false, message + " failed: " + e); + } + } + } +} + +async function testDevices() { + await SpecialPowers.pushPrefEnv({ + set: [ + ["privacy.resistFingerprinting", true], + ["media.navigator.streams.fake", true] + ] + }); + await testEnumerateDevices(true); // should list a microphone and a camera + await testGetUserMedia(true); // should get audio and video streams +} + +async function testNoDevices() { + await SpecialPowers.pushPrefEnv({ + set: [ + ["privacy.resistFingerprinting", false], + ["media.navigator.permission.device", false], + ["media.navigator.streams.fake", false], + ["media.audio_loopback_dev", "foo"], + ["media.video_loopback_dev", "bar"] + ] + }); + await testEnumerateDevices(false); // should list nothing + await SpecialPowers.pushPrefEnv({ + set: [ + ["privacy.resistFingerprinting", true] + ] + }); + await testEnumerateDevices(true); // should list a microphone and a camera + await testGetUserMedia(false); // should reject with NotAllowedError +} + +createHTML({ + title: "Neutralize the threat of fingerprinting of media devices API when 'privacy.resistFingerprinting' is true", + bug: "1372073" +}); + +runTest(async () => { + // Make sure enumerateDevices and getUserMedia work when + // privacy.resistFingerprinting is true. + await testDevices(); + + // Test that absence of devices can't be detected. + await testNoDevices(); +}); +</script> +</body> +</html> |