From a0638a23b099b5ca174680324e856533d765be09 Mon Sep 17 00:00:00 2001
From: Antoine du Hamel <duhamelantoine1995@gmail.com>
Date: Fri, 29 Apr 2022 16:04:12 +0200
Subject: [PATCH] esm: fix imports from non-file module

Fixes: https://github.com/nodejs/node/issues/42860

PR-URL: https://github.com/nodejs/node/pull/42881
Reviewed-By: Geoffrey Booth <webadmin@geoffreybooth.com>
Reviewed-By: Jacob Smith <jacob@frende.me>
Reviewed-By: Guy Bedford <guybedford@gmail.com>
---
 lib/internal/modules/esm/resolve.js  | 8 +++-----
 test/es-module/test-esm-data-urls.js | 5 +++++
 test/es-module/test-http-imports.mjs | 6 +++---
 3 files changed, 11 insertions(+), 8 deletions(-)

diff --git a/lib/internal/modules/esm/resolve.js b/lib/internal/modules/esm/resolve.js
index f1298e58dc445c..8767109d7c4177 100644
--- a/lib/internal/modules/esm/resolve.js
+++ b/lib/internal/modules/esm/resolve.js
@@ -1015,8 +1015,6 @@ function resolveAsCommonJS(specifier, parentURL) {
 // TODO(@JakobJingleheimer): de-dupe `specifier` & `parsed`
 function checkIfDisallowedImport(specifier, parsed, parsedParentURL) {
   if (parsedParentURL) {
-    const parentURL = fileURLToPath(parsedParentURL?.href);
-
     if (
       parsedParentURL.protocol === 'http:' ||
       parsedParentURL.protocol === 'https:'
@@ -1030,7 +1028,7 @@ function checkIfDisallowedImport(specifier, parsed, parsedParentURL) {
         ) {
           throw new ERR_NETWORK_IMPORT_DISALLOWED(
             specifier,
-            parentURL,
+            parsedParentURL,
             'remote imports cannot import from a local location.'
           );
         }
@@ -1041,14 +1039,14 @@ function checkIfDisallowedImport(specifier, parsed, parsedParentURL) {
           NativeModule.canBeRequiredWithoutScheme(specifier)) {
         throw new ERR_NETWORK_IMPORT_DISALLOWED(
           specifier,
-          parentURL,
+          parsedParentURL,
           'remote imports cannot import from a local location.'
         );
       }
 
       throw new ERR_NETWORK_IMPORT_DISALLOWED(
         specifier,
-        parentURL,
+        parsedParentURL,
         'only relative and absolute specifiers are supported.'
       );
     }
diff --git a/test/es-module/test-esm-data-urls.js b/test/es-module/test-esm-data-urls.js
index 9d0deb70a1568c..5be45d0f7af3b6 100644
--- a/test/es-module/test-esm-data-urls.js
+++ b/test/es-module/test-esm-data-urls.js
@@ -1,5 +1,6 @@
 'use strict';
 const common = require('../common');
+const fixtures = require('../common/fixtures');
 const assert = require('assert');
 function createURL(mime, body) {
   return `data:${mime},${body}`;
@@ -107,4 +108,8 @@ function createBase64URL(mime, body) {
     const module = await import(plainESMURL);
     assert.strictEqual(module.default, 2);
   }
+  {
+    const plainESMURL = `data:text/javascript,${encodeURIComponent(`import ${JSON.stringify(fixtures.fileURL('es-module-url', 'empty.js'))}`)}`;
+    await import(plainESMURL);
+  }
 })().then(common.mustCall());
diff --git a/test/es-module/test-http-imports.mjs b/test/es-module/test-http-imports.mjs
index 5b1f2dbc578e35..5139a2e69e0f60 100644
--- a/test/es-module/test-http-imports.mjs
+++ b/test/es-module/test-http-imports.mjs
@@ -167,7 +167,7 @@ for (const { protocol, createServer } of [
       export default 1;`);
     await assert.rejects(
       import(fileDep.href),
-      { code: 'ERR_INVALID_URL_SCHEME' }
+      { code: 'ERR_NETWORK_IMPORT_DISALLOWED' }
     );
 
     const builtinDep = new URL(url.href);
@@ -177,7 +177,7 @@ for (const { protocol, createServer } of [
     `);
     await assert.rejects(
       import(builtinDep.href),
-      { code: 'ERR_INVALID_URL_SCHEME' }
+      { code: 'ERR_NETWORK_IMPORT_DISALLOWED' }
     );
 
     const unprefixedBuiltinDep = new URL(url.href);
@@ -187,7 +187,7 @@ for (const { protocol, createServer } of [
     `);
     await assert.rejects(
       import(unprefixedBuiltinDep.href),
-      { code: 'ERR_INVALID_URL_SCHEME' }
+      { code: 'ERR_NETWORK_IMPORT_DISALLOWED' }
     );
 
     const unsupportedMIME = new URL(url.href);