1 files changed, 56 insertions, 0 deletions
diff --git a/mobile/android/actors/GeckoViewPermissionProcessParent.sys.mjs b/mobile/android/actors/GeckoViewPermissionProcessParent.sys.mjs
new file mode 100644
index 0000000000..47b98602a5
--- /dev/null
+++ b/mobile/android/actors/GeckoViewPermissionProcessParent.sys.mjs
@@ -0,0 +1,56 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+import { GeckoViewUtils } from "resource://gre/modules/GeckoViewUtils.sys.mjs";
+
+// See: http://developer.android.com/reference/android/Manifest.permission.html
+const PERM_CAMERA = "android.permission.CAMERA";
+const PERM_RECORD_AUDIO = "android.permission.RECORD_AUDIO";
+
+export class GeckoViewPermissionProcessParent extends JSProcessActorParent {
+  async askDevicePermission(aType) {
+    const perms = [];
+    if (aType === "video" || aType === "all") {
+      perms.push(PERM_CAMERA);
+    }
+    if (aType === "audio" || aType === "all") {
+      perms.push(PERM_RECORD_AUDIO);
+    }
+
+    try {
+      // This looks sketchy but it's fine: Android needs the audio/video
+      // permission to enumerate devices, which Gecko wants to do even before
+      // we expose the list to web pages.
+      // So really it doesn't matter what the request source is, because we
+      // will, separately, issue a windowId-specific request to let the webpage
+      // actually have access to the list of devices. So even if the source of
+      // *this* request is incorrect, no actual harm will be done, as the user
+      // will always receive the request with the right origin after this.
+      const window = Services.wm.getMostRecentWindow("navigator:geckoview");
+      const windowActor = window.browsingContext.currentWindowGlobal.getActor(
+        "GeckoViewPermission"
+      );
+      await windowActor.getAppPermissions(perms);
+    } catch (error) {
+      // We can't really do anything here so we pretend we got the permission.
+      warn`Error getting app permission: ${error}`;
+    }
+  }
+
+  receiveMessage(aMessage) {
+    debug`receiveMessage ${aMessage.name}`;
+
+    switch (aMessage.name) {
+      case "AskDevicePermission": {
+        return this.askDevicePermission(aMessage.data);
+      }
+    }
+
+    return super.receiveMessage(aMessage);
+  }
+}
+
+const { debug, warn } = GeckoViewUtils.initLogging(
+  "GeckoViewPermissionProcess"
+);