1 files changed, 66 insertions, 0 deletions
diff --git a/dom/media/tests/mochitest/test_getUserMedia_scarySources.html b/dom/media/tests/mochitest/test_getUserMedia_scarySources.html
new file mode 100644
index 000000000..2f1b2195b
--- /dev/null
+++ b/dom/media/tests/mochitest/test_getUserMedia_scarySources.html
@@ -0,0 +1,66 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <script type="application/javascript" src="head.js"></script>
+  <script type="application/javascript" src="mediaStreamPlayback.js"></script>
+</head>
+<body>
+<pre id="test">
+<script type="application/javascript">
+
+createHTML({title: "Detect screensharing sources that are firefox", bug: "1311048"});
+
+netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
+
+const { Services } = SpecialPowers.Cu.import('resource://gre/modules/Services.jsm');
+
+let observe = topic => new Promise(r => Services.obs.addObserver(function o(...args) {
+  Services.obs.removeObserver(o, topic);
+  r(args);
+}, topic, false));
+
+let getDevices = async constraints => {
+  let [{ windowID, innerWindowID, callID }] = await Promise.race([
+    getUserMedia(constraints),
+    observe("getUserMedia:request")
+  ]);
+  let window = Services.wm.getOuterWindowWithId(windowID);
+  let devices = await new Promise((resolve, reject) =>
+      window.navigator.mozGetUserMediaDevices({}, resolve, reject,
+                                              innerWindowID, callID));
+  return devices.map(d => d.QueryInterface(Ci.nsIMediaDevice));
+};
+
+runTest(async () => {
+  try {
+    const isWinXP = navigator.userAgent.indexOf("Windows NT 5.1") != -1;
+    if (IsMacOSX10_6orOlder() || isWinXP) {
+      ok(true, "Screensharing disabled for OSX10.6 and WinXP");
+      return;
+    }
+
+    await pushPrefs(["media.navigator.permission.disabled", true],
+                    ["media.navigator.permission.fake", true],
+                    ["media.navigator.permission.force", true]);
+    let devices = await getDevices({video: { mediaSource: "window" }});
+    ok(devices.length, "Found one or more windows.");
+    devices = devices.filter(d => d.scary);
+    ok(devices.length, "Found one or more scary windows (our own counts).");
+    devices.filter(d => d.name.includes("MochiTest"));
+    ok(devices.length,
+       "Our own window is among the scary: " + devices.map(d => `"${d.name}"`));
+
+    devices = await getDevices({video: { mediaSource: "screen" }});
+    let numScreens = devices.length;
+    ok(numScreens, "Found one or more screens.");
+    devices = devices.filter(d => d.scary);
+    is(devices.length, numScreens, "All screens are scary.");
+  } catch(e) {
+    ok(false, e);
+  }
+});
+
+</script>
+</pre>
+</body>
+</html>