1 files changed, 44 insertions, 0 deletions
diff --git a/devtools/server/actors/utils/map-uri-to-addon-id.js b/devtools/server/actors/utils/map-uri-to-addon-id.js
new file mode 100644
index 000000000..6f3316b14
--- /dev/null
+++ b/devtools/server/actors/utils/map-uri-to-addon-id.js
@@ -0,0 +1,44 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2; js-indent-level: 2 -*- */
+/* vim: set ft=javascript ts=2 et sw=2 tw=80: */
+/* 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/. */
+
+"use strict";
+
+const DevToolsUtils = require("devtools/shared/DevToolsUtils");
+const Services = require("Services");
+
+loader.lazyServiceGetter(this, "AddonPathService",
+                         "@mozilla.org/addon-path-service;1",
+                         "amIAddonPathService");
+
+const B2G_ID = "{3c2e2abc-06d4-11e1-ac3b-374f68613e61}";
+const GRAPHENE_ID = "{d1bfe7d9-c01e-4237-998b-7b5f960a4314}";
+
+/**
+ * This is a wrapper around amIAddonPathService.mapURIToAddonID which always returns
+ * false on B2G and graphene to avoid loading the add-on manager there and
+ * reports any exceptions rather than throwing so that the caller doesn't have
+ * to worry about them.
+ */
+if (!Services.appinfo
+    || Services.appinfo.processType == Services.appinfo.PROCESS_TYPE_CONTENT
+    || Services.appinfo.ID === undefined /* XPCShell */
+    || Services.appinfo.ID == B2G_ID
+    || Services.appinfo.ID == GRAPHENE_ID
+    || !AddonPathService) {
+  module.exports = function mapURIToAddonId(uri) {
+    return false;
+  };
+} else {
+  module.exports = function mapURIToAddonId(uri) {
+    try {
+      return AddonPathService.mapURIToAddonId(uri);
+    }
+    catch (e) {
+      DevToolsUtils.reportException("mapURIToAddonId", e);
+      return false;
+    }
+  };
+}