Bug 1703674 - Revoking cam or mic permission revokes both if either is capturing. r=pbz

Differential Revision: https://phabricator.services.mozilla.com/D111174

browser/base/content/test/webrtc/browser_devices_get_user_media.js

@@ -653,7 +653,12 @@ var gTests = [
   {
     desc: "Stop Sharing removes permissions",
     run: async function checkStopSharingRemovesPermissions() {
-      async function stopAndCheckPerm(aRequestAudio, aRequestVideo) {
+      async function stopAndCheckPerm(
+        aRequestAudio,
+        aRequestVideo,
+        aStopAudio = aRequestAudio,
+        aStopVideo = aRequestVideo
+      ) {
         let uri = gBrowser.selectedBrowser.documentURI;
 
         // Initially set both permissions to 'allow'.
@@ -677,12 +682,15 @@ var gTests = [
           10000000
         );
 
+        if (aRequestAudio || aRequestVideo) {
           let indicator = promiseIndicatorWindow();
           let observerPromise1 = expectObserverCalled("getUserMedia:request");
           let observerPromise2 = expectObserverCalled(
             "getUserMedia:response:allow"
           );
-        let observerPromise3 = expectObserverCalled("recording-device-events");
+          let observerPromise3 = expectObserverCalled(
+            "recording-device-events"
+          );
           // Start sharing what's been requested.
           let promise = promiseMessage("ok");
           await promiseRequestDevice(aRequestAudio, aRequestVideo);
@@ -701,8 +709,10 @@ var gTests = [
               audio: { scope: SitePermissions.SCOPE_PERSISTENT },
             }
           );
-
-        await stopSharing(aRequestVideo ? "camera" : "microphone");
+          await stopSharing(aStopVideo ? "camera" : "microphone");
+        } else {
+          await revokePermission(aStopVideo ? "camera" : "microphone");
+        }
 
         // Check that permissions have been removed as expected.
         let audioPerm = SitePermissions.getForPrincipal(
@@ -716,7 +726,12 @@ var gTests = [
           gBrowser.selectedBrowser
         );
 
-        if (aRequestAudio) {
+        if (
+          aRequestAudio ||
+          aRequestVideo ||
+          aStopAudio ||
+          (aStopVideo && aRequestAudio)
+        ) {
           Assert.deepEqual(
             audioPerm,
             {
@@ -762,7 +777,12 @@ var gTests = [
           "camera^myDevice2",
           gBrowser.selectedBrowser
         );
-        if (aRequestVideo) {
+        if (
+          aRequestAudio ||
+          aRequestVideo ||
+          aStopVideo ||
+          (aStopAudio && aRequestVideo)
+        ) {
           Assert.deepEqual(
             videoPerm,
             {
@@ -797,6 +817,7 @@ var gTests = [
             "camera device-specific permissions untouched"
           );
         }
+        await checkNotSharing();
 
         // Cleanup.
         await closeStream(true);
@@ -813,12 +834,20 @@ var gTests = [
         );
       }
 
-      info("request audio+video, stop sharing resets both");
+      info("request audio+video, stop sharing video resets both");
       await stopAndCheckPerm(true, true);
-      info("request audio, stop sharing resets audio only");
+      info("request audio only, stop sharing audio resets both");
       await stopAndCheckPerm(true, false);
-      info("request video, stop sharing resets video only");
+      info("request video only, stop sharing video resets both");
       await stopAndCheckPerm(false, true);
+      info("request audio only, stop sharing video resets both");
+      await stopAndCheckPerm(true, false, false, true);
+      info("request video only, stop sharing audio resets both");
+      await stopAndCheckPerm(false, true, true, false);
+      info("request neither, stop audio affects audio only");
+      await stopAndCheckPerm(false, false, true, false);
+      info("request neither, stop video affects video only");
+      await stopAndCheckPerm(false, false, false, true);
     },
   },
 

browser/base/content/test/webrtc/head.js

@@ -582,22 +582,6 @@ async function stopSharing(
     1,
     aFrameBC
   );
-  aWindow.gPermissionPanel._identityPermissionBox.click();
-  let popup = aWindow.gPermissionPanel._permissionPopup;
-  // If the popup gets hidden before being shown, by stray focus/activate
-  // events, don't bother failing the test. It's enough to know that we
-  // started showing the popup.
-  let hiddenEvent = BrowserTestUtils.waitForEvent(popup, "popuphidden");
-  let shownEvent = BrowserTestUtils.waitForEvent(popup, "popupshown");
-  await Promise.race([hiddenEvent, shownEvent]);
-  let doc = aWindow.document;
-  let permissions = doc.getElementById("permission-popup-permission-list");
-  let cancelButton = permissions.querySelector(
-    ".permission-popup-permission-icon." +
-      aType +
-      "-icon ~ " +
-      ".permission-popup-permission-remove-button"
-  );
   let observerPromise1 = expectObserverCalled(
     "getUserMedia:revoke",
     1,
@@ -615,9 +599,7 @@ async function stopSharing(
     );
   }
 
-  cancelButton.click();
-  popup.hidePopup();
-
+  await revokePermission(aType, aShouldKeepSharing, aFrameBC, aWindow);
   await promiseRecordingEvent;
   await observerPromise1;
   await observerPromise2;
@@ -627,6 +609,37 @@ async function stopSharing(
   }
 }
 
+async function revokePermission(
+  aType = "camera",
+  aShouldKeepSharing = false,
+  aFrameBC,
+  aWindow = window
+) {
+  aWindow.gPermissionPanel._identityPermissionBox.click();
+  let popup = aWindow.gPermissionPanel._permissionPopup;
+  // If the popup gets hidden before being shown, by stray focus/activate
+  // events, don't bother failing the test. It's enough to know that we
+  // started showing the popup.
+  let hiddenEvent = BrowserTestUtils.waitForEvent(popup, "popuphidden");
+  let shownEvent = BrowserTestUtils.waitForEvent(popup, "popupshown");
+  await Promise.race([hiddenEvent, shownEvent]);
+  let doc = aWindow.document;
+  let permissions = doc.getElementById("permission-popup-permission-list");
+  let cancelButton = permissions.querySelector(
+    ".permission-popup-permission-icon." +
+      aType +
+      "-icon ~ " +
+      ".permission-popup-permission-remove-button"
+  );
+
+  cancelButton.click();
+  popup.hidePopup();
+
+  if (!aShouldKeepSharing) {
+    await checkNotSharing();
+  }
+}
+
 function getBrowsingContextForFrame(aBrowsingContext, aFrameId) {
   if (!aFrameId) {
     return aBrowsingContext;

browser/modules/webrtcUI.jsm

@@ -600,22 +600,18 @@ var webrtcUI = {
     // devices related to the permission.
     let perms = SitePermissions.getAllForBrowser(browser);
 
-    let sharingCameraAndMic =
-      sharingState?.camera &&
-      sharingState?.microphone &&
+    // If capturing, don't revoke one of camera/microphone without the other.
+    let sharingCameraOrMic =
+      (sharingState?.camera || sharingState?.microphone) &&
       (types.includes("camera") || types.includes("microphone"));
+
     perms
       .filter(perm => {
-        let [permId] = perm.id.split(SitePermissions.PERM_KEY_DELIMITER);
-        // It's not possible to stop sharing one of camera/microphone
-        // without the other.
-        if (
-          sharingCameraAndMic &&
-          (permId == "camera" || permId == "microphone")
-        ) {
+        let [id] = perm.id.split(SitePermissions.PERM_KEY_DELIMITER);
+        if (sharingCameraOrMic && (id == "camera" || id == "microphone")) {
           return true;
         }
-        return types.includes(permId);
+        return types.includes(id);
       })
       .forEach(perm => {
         SitePermissions.removeFromPrincipal(
@@ -637,10 +633,7 @@ var webrtcUI = {
     if (types.includes("screen") && sharingState.screen) {
       windowIds.push(`screen:${windowId}`);
     }
-    if (
-      (types.includes("camera") && sharingState.camera) ||
-      (types.includes("microphone") && sharingState.microphone)
-    ) {
+    if (sharingCameraOrMic) {
       windowIds.push(windowId);
     }