зеркало из https://github.com/mozilla/gecko-dev.git
Bug 1372073 - Add tests for Media Capture and Streams fingerprinting resistance. r=arthuredelstein,jib
MozReview-Commit-ID: DY9JpwJevkS --HG-- extra : rebase_source : 7dfb91ac8ab7bcfec264fb0f9ddbc2729c631b88
This commit is contained in:
Chung-Sheng Fu
Родитель
dcc7fc01d6
Коммит
1ce995c702
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@ -306,3 +306,4 @@ skip-if = toolkit == 'android' # android(Bug 1189784, timeouts on 4.3 emulator,
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skip-if = (android_version == '18') # android(Bug 1189784, timeouts on 4.3 emulator)
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skip-if = (android_version == '18') # android(Bug 1189784, timeouts on 4.3 emulator)
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[test_peerConnection_verifyDescriptions.html]
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[test_peerConnection_verifyDescriptions.html]
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skip-if = (android_version == '18')
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skip-if = (android_version == '18')
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[test_fingerprinting_resistance.html]
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@ -0,0 +1,107 @@
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8">
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<script src="mediaStreamPlayback.js"></script>
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</head>
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<body>
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<script>
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/* global SimpleTest SpecialPowers */
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async function testEnumerateDevices(expectDevices) {
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let devices = await navigator.mediaDevices.enumerateDevices();
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if (!expectDevices) {
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SimpleTest.is(devices.length, 0, "testEnumerateDevices: No devices");
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return;
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}
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let cams = devices.filter((device) => device.kind == "videoinput");
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let mics = devices.filter((device) => device.kind == "audioinput");
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SimpleTest.ok((cams.length == 1) && (mics.length == 1),
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"testEnumerateDevices: a microphone and a camera");
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}
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async function testGetUserMedia(expectDevices) {
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const constraints = [
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{audio: true}, {video: true}, {audio: true, video: true}
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];
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for (let constraint of constraints) {
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let message = "getUserMedia(" + JSON.stringify(constraint) + ")";
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try {
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let stream = await navigator.mediaDevices.getUserMedia(constraint);
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SimpleTest.ok(expectDevices, message + " resolved");
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if (!expectDevices) {
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continue;
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}
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// We only do testGetUserMedia(true) when privacy.resistFingerprinting
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// is true, test if MediaStreamTrack.label is spoofed.
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for (let track of stream.getTracks()) {
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switch (track.kind) {
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case "audio":
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SimpleTest.is(track.label, "Internal Microphone", "AudioStreamTrack.label");
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break;
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case "video":
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SimpleTest.is(track.label, "Internal Camera", "VideoStreamTrack.label");
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break;
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default:
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SimpleTest.ok(false, "Unknown kind: " + track.kind);
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break;
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}
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track.stop();
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}
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} catch (e) {
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if (!expectDevices) {
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SimpleTest.is(e.name, "NotAllowedError", message + " throws NotAllowedError");
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} else {
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SimpleTest.ok(false, message + " failed: " + e);
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}
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}
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}
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}
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async function testDevices() {
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await SpecialPowers.pushPrefEnv({
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set: [
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["privacy.resistFingerprinting", true],
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["media.navigator.streams.fake", true]
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]
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});
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await testEnumerateDevices(true); // should list a microphone and a camera
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await testGetUserMedia(true); // should get audio and video streams
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}
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async function testNoDevices() {
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await SpecialPowers.pushPrefEnv({
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set: [
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["privacy.resistFingerprinting", false],
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["media.navigator.streams.fake", false],
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["media.audio_loopback_dev", "foo"],
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["media.video_loopback_dev", "bar"]
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]
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});
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await testEnumerateDevices(false); // should list nothing
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await SpecialPowers.pushPrefEnv({
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set: [
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["privacy.resistFingerprinting", true]
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]
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});
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await testEnumerateDevices(true); // should list a microphone and a camera
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await testGetUserMedia(false); // should reject with NotAllowedError
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}
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createHTML({
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title: "Neutralize the threat of fingerprinting of media devices API when 'privacy.resistFingerprinting' is true",
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bug: "1372073"
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});
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runTest(async () => {
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// Make sure enumerateDevices and getUserMedia work when
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// privacy.resistFingerprinting is true.
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await testDevices();
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// Test that absence of devices can't be detected.
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await testNoDevices();
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});
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</script>
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</body>
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</html>
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