From f412834151bbe74dc481fd5cf76654460b47dcc8 Mon Sep 17 00:00:00 2001
From: Yagiz Nizipli <yagiz@nizipli.com>
Date: Fri, 14 Oct 2022 18:51:52 +0300
Subject: [PATCH] lib: support more attributes for early hint link

PR-URL: https://github.com/nodejs/node/pull/44874
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
---
 lib/internal/validators.js       |  2 +-
 test/parallel/test-validators.js | 13 +++++++++++++
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/lib/internal/validators.js b/lib/internal/validators.js
index 8fb3eed9646042..20b7486315cf1f 100644
--- a/lib/internal/validators.js
+++ b/lib/internal/validators.js
@@ -441,7 +441,7 @@ function validateUnion(value, name, union) {
   }
 }
 
-const linkValueRegExp = /^(?:<[^>]*>;)\s*(?:rel=(")?[^;"]*\1;?)\s*(?:(?:as|anchor|title)=(")?[^;"]*\2)?$/;
+const linkValueRegExp = /^(?:<[^>]*>;)\s*(?:rel=(")?[^;"]*\1;?)\s*(?:(?:as|anchor|title|crossorigin|disabled|fetchpriority|rel|referrerpolicy)=(")?[^;"]*\2)?$/;
 
 /**
  * @param {any} value
diff --git a/test/parallel/test-validators.js b/test/parallel/test-validators.js
index 63cf42e306605c..a40139678eee65 100644
--- a/test/parallel/test-validators.js
+++ b/test/parallel/test-validators.js
@@ -12,6 +12,7 @@ const {
   validateString,
   validateInt32,
   validateUint32,
+  validateLinkHeaderValue,
 } = require('internal/validators');
 const { MAX_SAFE_INTEGER, MIN_SAFE_INTEGER } = Number;
 const outOfRangeError = {
@@ -154,3 +155,15 @@ const invalidArgValueError = {
     code: 'ERR_INVALID_ARG_TYPE'
   }));
 }
+
+{
+  // validateLinkHeaderValue type validation.
+  [
+    ['</styles.css>; rel=preload; as=style', '</styles.css>; rel=preload; as=style'],
+    ['</styles.css>; rel=preload; title=hello', '</styles.css>; rel=preload; title=hello'],
+    ['</styles.css>; rel=preload; crossorigin=hello', '</styles.css>; rel=preload; crossorigin=hello'],
+    ['</styles.css>; rel=preload; disabled=true', '</styles.css>; rel=preload; disabled=true'],
+    ['</styles.css>; rel=preload; fetchpriority=high', '</styles.css>; rel=preload; fetchpriority=high'],
+    ['</styles.css>; rel=preload; referrerpolicy=origin', '</styles.css>; rel=preload; referrerpolicy=origin'],
+  ].forEach(([value, expected]) => assert.strictEqual(validateLinkHeaderValue(value), expected));
+}