implement domainToASCII and domainToUnicode

src/node/internal/url.d.ts

@@ -0,0 +1,5 @@
+// Copyright (c) 2017-2022 Cloudflare, Inc.
+// Licensed under the Apache 2.0 license found in the LICENSE file or at:
+//     https://opensource.org/licenses/Apache-2.0
+export function domainToASCII(domain: string): string;
+export function domainToUnicode(domain: string): string;

src/node/url.ts

@@ -0,0 +1,33 @@
+// Copyright (c) 2017-2022 Cloudflare, Inc.
+// Licensed under the Apache 2.0 license found in the LICENSE file or at:
+//     https://opensource.org/licenses/Apache-2.0
+/* eslint-disable @typescript-eslint/no-unsafe-assignment */
+import { default as urlUtil } from 'node-internal:url';
+import { ERR_MISSING_ARGS } from 'node-internal:internal_errors';
+
+const { URL, URLSearchParams } = globalThis;
+
+export function domainToASCII(domain?: unknown): string {
+  if (arguments.length < 1) {
+    throw new ERR_MISSING_ARGS('domain');
+  }
+
+  return urlUtil.domainToASCII(`${domain}`);
+}
+
+export function domainToUnicode(domain?: unknown): string {
+  if (arguments.length < 1) {
+    throw new ERR_MISSING_ARGS('domain');
+  }
+
+  return urlUtil.domainToUnicode(`${domain}`);
+}
+
+export { URL, URLSearchParams };
+
+export default {
+  domainToASCII,
+  domainToUnicode,
+  URL,
+  URLSearchParams,
+};

src/workerd/api/node/BUILD.bazel

@@ -10,6 +10,7 @@ wd_cc_library(
     ),
     hdrs = glob(["**/*.h"]),
     implementation_deps = [
+        "@ada-url",
         "@capnp-cpp//src/kj/compat:kj-gzip",
         "@nbytes",
         "@simdutf",
@@ -138,6 +139,12 @@ wd_test(
     data = ["tests/string-decoder-test.js"],
 )
 
+wd_test(
+    src = "tests/url-nodejs-test.wd-test",
+    args = ["--experimental"],
+    data = ["tests/url-nodejs-test.js"],
+)
+
 wd_test(
     src = "tests/util-nodejs-test.wd-test",
     args = ["--experimental"],

src/workerd/api/node/node.h

@@ -4,6 +4,7 @@
 #include "buffer.h"
 #include "crypto.h"
 #include "diagnostics-channel.h"
+#include "url.h"
 #include "util.h"
 #include "zlib-util.h"
 #include <workerd/jsg/jsg.h>
@@ -44,7 +45,8 @@ class CompatibilityFlags: public jsg::Object {
   V(CryptoImpl, "node-internal:crypto")                                                            \
   V(UtilModule, "node-internal:util")                                                              \
   V(DiagnosticsChannelModule, "node-internal:diagnostics_channel")                                 \
-  V(ZlibUtil, "node-internal:zlib")
+  V(ZlibUtil, "node-internal:zlib")                                                                \
+  V(UrlUtil, "node-internal:url")
 
 // Add to the NODEJS_MODULES_EXPERIMENTAL list any currently in-development
 // node.js compat C++ modules that should be guarded by the experimental compat
@@ -135,4 +137,4 @@ kj::Own<jsg::modules::ModuleBundle> getExternalNodeJsCompatModuleBundle(auto fea
 #define EW_NODE_ISOLATE_TYPES                                                                      \
   api::node::CompatibilityFlags, EW_NODE_BUFFER_ISOLATE_TYPES, EW_NODE_CRYPTO_ISOLATE_TYPES,       \
       EW_NODE_DIAGNOSTICCHANNEL_ISOLATE_TYPES, EW_NODE_ASYNCHOOKS_ISOLATE_TYPES,                   \
-      EW_NODE_UTIL_ISOLATE_TYPES, EW_NODE_ZLIB_ISOLATE_TYPES
+      EW_NODE_UTIL_ISOLATE_TYPES, EW_NODE_ZLIB_ISOLATE_TYPES, EW_NODE_URL_ISOLATE_TYPES

src/workerd/api/node/tests/url-nodejs-test.js

@@ -0,0 +1,79 @@
+// Copyright (c) 2017-2022 Cloudflare, Inc.
+// Licensed under the Apache 2.0 license found in the LICENSE file or at:
+//     https://opensource.org/licenses/Apache-2.0
+//
+// Adapted from Node.js. Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+import { strictEqual, throws, ok as assert } from 'node:assert';
+import {
+  domainToASCII,
+  domainToUnicode,
+  URL as URLImpl,
+  URLSearchParams as URLSearchParamsImpl,
+} from 'node:url';
+
+// Tests are taken from:
+// https://github.com/nodejs/node/blob/321a14b36d6b3304aedfd183e12ddba35dc704bd/test/parallel/test-url-domain-ascii-unicode.js
+export const testDomainAsciiUnicode = {
+  test() {
+    const domainWithASCII = [
+      ['ıíd', 'xn--d-iga7r'],
+      ['يٴ', 'xn--mhb8f'],
+      ['www.ϧƽəʐ.com', 'www.xn--cja62apfr6c.com'],
+      ['новини.com', 'xn--b1amarcd.com'],
+      ['名がドメイン.com', 'xn--v8jxj3d1dzdz08w.com'],
+      ['افغانستا.icom.museum', 'xn--mgbaal8b0b9b2b.icom.museum'],
+      ['الجزائر.icom.fake', 'xn--lgbbat1ad8j.icom.fake'],
+      ['भारत.org', 'xn--h2brj9c.org'],
+      ['aaa', 'aaa'],
+    ];
+
+    for (const [domain, ascii] of domainWithASCII) {
+      strictEqual(domainToASCII(domain), ascii);
+      strictEqual(domainToUnicode(ascii), domain);
+    }
+  },
+};
+
+// Tests are taken from:
+// https://github.com/nodejs/node/blob/321a14b36d6b3304aedfd183e12ddba35dc704bd/test/parallel/test-whatwg-url-custom-domainto.js
+export const whatwgURLCustomDomainTo = {
+  test() {
+    {
+      const expectedError = { code: 'ERR_MISSING_ARGS', name: 'TypeError' };
+      throws(() => domainToASCII(), expectedError);
+      throws(() => domainToUnicode(), expectedError);
+      strictEqual(domainToASCII(undefined), 'undefined');
+      strictEqual(domainToUnicode(undefined), 'undefined');
+    }
+  },
+};
+
+export const urlAndSearchParams = {
+  test() {
+    assert(URLImpl, 'URL should be exported from node:url');
+    assert(
+      URLSearchParamsImpl,
+      'URLSearchParams should be exported by node:url'
+    );
+  },
+};

src/workerd/api/node/tests/url-nodejs-test.wd-test

@@ -0,0 +1,15 @@
+using Workerd = import "/workerd/workerd.capnp";
+
+const unitTests :Workerd.Config = (
+  services = [
+    ( name = "nodejs-url-test",
+      worker = (
+        modules = [
+          (name = "worker", esModule = embed "url-nodejs-test.js")
+        ],
+        compatibilityDate = "2023-10-01",
+        compatibilityFlags = ["nodejs_compat"],
+      )
+    ),
+  ],
+);

src/workerd/api/node/url.c++

@@ -0,0 +1,47 @@
+// Copyright (c) 2017-2022 Cloudflare, Inc.
+// Licensed under the Apache 2.0 license found in the LICENSE file or at:
+//     https://opensource.org/licenses/Apache-2.0
+#include "url.h"
+
+#include "ada.h"
+
+namespace workerd::api::node {
+
+namespace {
+
+// Implementation is used by `domainToASCII` and `domainToUnicode`
+kj::Maybe<std::string> GetHostName(kj::StringPtr domain) {
+  if (domain.size() == 0) {
+    return kj::none;
+  }
+
+  // It is important to have an initial value that contains a special scheme.
+  // Since it will change the implementation of `set_hostname` according to URL
+  // spec.
+  auto out = ada::parse<ada::url>("ws://x");
+  JSG_REQUIRE(out.has_value(), Error, "URL parsing failed"_kj);
+  if (!out->set_hostname({domain.begin(), domain.size()})) {
+    return kj::none;
+  }
+  return out->get_hostname();
+}
+
+}  // namespace
+
+jsg::JsString UrlUtil::domainToASCII(jsg::Lock& js, kj::String domain) {
+  KJ_IF_SOME(hostname, GetHostName(domain)) {
+    return js.str(kj::StringPtr(hostname.data(), hostname.size()));
+  }
+  return js.str(""_kj);
+}
+
+jsg::JsString UrlUtil::domainToUnicode(jsg::Lock& js, kj::String domain) {
+  KJ_IF_SOME(hostname, GetHostName(domain)) {
+    auto result = ada::idna::to_unicode(hostname);
+    return js.str(kj::StringPtr(result.data(), result.size()));
+  }
+
+  return js.str(""_kj);
+}
+
+}  // namespace workerd::api::node

src/workerd/api/node/url.h

@@ -0,0 +1,27 @@
+// Copyright (c) 2017-2022 Cloudflare, Inc.
+// Licensed under the Apache 2.0 license found in the LICENSE file or at:
+//     https://opensource.org/licenses/Apache-2.0
+#pragma once
+
+#include <kj/string.h>
+#include <workerd/jsg/jsg.h>
+
+namespace workerd::api::node {
+
+class UrlUtil final: public jsg::Object {
+public:
+  UrlUtil() = default;
+  UrlUtil(jsg::Lock&, const jsg::Url&) {}
+
+  jsg::JsString domainToUnicode(jsg::Lock& js, kj::String domain);
+  jsg::JsString domainToASCII(jsg::Lock& js, kj::String domain);
+
+  JSG_RESOURCE_TYPE(UrlUtil) {
+    JSG_METHOD(domainToUnicode);
+    JSG_METHOD(domainToASCII);
+  }
+};
+
+#define EW_NODE_URL_ISOLATE_TYPES api::node::UrlUtil
+
+}  // namespace workerd::api::node