1 files changed, 94 insertions, 0 deletions
diff --git a/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/reject-importGlobalProperties.js b/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/reject-importGlobalProperties.js
new file mode 100644
index 0000000000..1012c12350
--- /dev/null
+++ b/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/reject-importGlobalProperties.js
@@ -0,0 +1,94 @@
+/**
+ * @fileoverview Reject use of Cu.importGlobalProperties
+ *
+ * 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 path = require("path");
+
+const privilegedGlobals = Object.keys(
+  require("../environments/privileged.js").globals
+);
+
+module.exports = {
+  meta: {
+    docs: {
+      url: "https://firefox-source-docs.mozilla.org/code-quality/lint/linters/eslint-plugin-mozilla/reject-importGlobalProperties.html",
+    },
+    messages: {
+      unexpectedCall: "Unexpected call to Cu.importGlobalProperties",
+      unexpectedCallCuWebIdl:
+        "Unnecessary call to Cu.importGlobalProperties for {{name}} (webidl names are automatically imported)",
+      unexpectedCallXPCOMWebIdl:
+        "Unnecessary call to XPCOMUtils.defineLazyGlobalGetters for {{name}} (webidl names are automatically imported)",
+    },
+    schema: [
+      {
+        enum: ["everything", "allownonwebidl"],
+      },
+    ],
+    type: "problem",
+  },
+
+  create(context) {
+    return {
+      CallExpression(node) {
+        if (
+          node.callee.type !== "MemberExpression" ||
+          // TODO Bug 1501127: sjs files have their own sandbox, and do not inherit
+          // the Window backstage pass directly.
+          path.extname(context.getFilename()) == ".sjs"
+        ) {
+          return;
+        }
+        let memexp = node.callee;
+        if (
+          memexp.object.type === "Identifier" &&
+          // Only Cu, not Components.utils as `use-cc-etc` handles this for us.
+          memexp.object.name === "Cu" &&
+          memexp.property.type === "Identifier" &&
+          memexp.property.name === "importGlobalProperties"
+        ) {
+          if (context.options.includes("allownonwebidl")) {
+            for (let element of node.arguments[0].elements) {
+              if (privilegedGlobals.includes(element.value)) {
+                context.report({
+                  node,
+                  messageId: "unexpectedCallCuWebIdl",
+                  data: { name: element.value },
+                });
+              }
+            }
+          } else {
+            context.report({ node, messageId: "unexpectedCall" });
+          }
+        }
+        if (
+          memexp.object.type === "Identifier" &&
+          memexp.object.name === "XPCOMUtils" &&
+          memexp.property.type === "Identifier" &&
+          memexp.property.name === "defineLazyGlobalGetters" &&
+          node.arguments.length >= 2
+        ) {
+          if (context.options.includes("allownonwebidl")) {
+            for (let element of node.arguments[1].elements) {
+              if (privilegedGlobals.includes(element.value)) {
+                context.report({
+                  node,
+                  messageId: "unexpectedCallXPCOMWebIdl",
+                  data: { name: element.value },
+                });
+              }
+            }
+          } else {
+            context.report({ node, messageId: "unexpectedCall" });
+          }
+        }
+      },
+    };
+  },
+};