1 files changed, 63 insertions, 0 deletions
diff --git a/remote/shared/AppInfo.sys.mjs b/remote/shared/AppInfo.sys.mjs
new file mode 100644
index 0000000000..300041987b
--- /dev/null
+++ b/remote/shared/AppInfo.sys.mjs
@@ -0,0 +1,63 @@
+/* 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 { XPCOMUtils } from "resource://gre/modules/XPCOMUtils.sys.mjs";
+
+const ID_FIREFOX = "{ec8030f7-c20a-464f-9b0e-13a3a9e97384}";
+const ID_THUNDERBIRD = "{3550f703-e582-4d05-9a08-453d09bdfdc6}";
+
+/**
+ * Extends Services.appinfo with further properties that are
+ * used by different protocols as handled by the Remote Agent.
+ *
+ * @typedef {object} RemoteAgent.AppInfo
+ * @property {boolean} isAndroid - Whether the application runs on Android.
+ * @property {boolean} isLinux - Whether the application runs on Linux.
+ * @property {boolean} isMac - Whether the application runs on Mac OS.
+ * @property {boolean} isWindows - Whether the application runs on Windows.
+ * @property {boolean} isFirefox - Whether the application is Firefox.
+ * @property {boolean} isThunderbird - Whether the application is Thunderbird.
+ *
+ * @since 88
+ */
+export const AppInfo = new Proxy(
+  {},
+  {
+    get(target, prop, receiver) {
+      if (target.hasOwnProperty(prop)) {
+        return target[prop];
+      }
+
+      return Services.appinfo[prop];
+    },
+  }
+);
+
+// Platform support
+
+XPCOMUtils.defineLazyGetter(AppInfo, "isAndroid", () => {
+  return Services.appinfo.OS === "Android";
+});
+
+XPCOMUtils.defineLazyGetter(AppInfo, "isLinux", () => {
+  return Services.appinfo.OS === "Linux";
+});
+
+XPCOMUtils.defineLazyGetter(AppInfo, "isMac", () => {
+  return Services.appinfo.OS === "Darwin";
+});
+
+XPCOMUtils.defineLazyGetter(AppInfo, "isWindows", () => {
+  return Services.appinfo.OS === "WINNT";
+});
+
+// Application type
+
+XPCOMUtils.defineLazyGetter(AppInfo, "isFirefox", () => {
+  return Services.appinfo.ID == ID_FIREFOX;
+});
+
+XPCOMUtils.defineLazyGetter(AppInfo, "isThunderbird", () => {
+  return Services.appinfo.ID == ID_THUNDERBIRD;
+});