Patch for v5.24.0

lib/core/constants.js

@@ -0,0 +1,118 @@
+'use strict'
+
+/** @type {Record<string, string | undefined>} */
+const headerNameLowerCasedRecord = {}
+
+// https://developer.mozilla.org/docs/Web/HTTP/Headers
+const wellknownHeaderNames = [
+  'Accept',
+  'Accept-Encoding',
+  'Accept-Language',
+  'Accept-Ranges',
+  'Access-Control-Allow-Credentials',
+  'Access-Control-Allow-Headers',
+  'Access-Control-Allow-Methods',
+  'Access-Control-Allow-Origin',
+  'Access-Control-Expose-Headers',
+  'Access-Control-Max-Age',
+  'Access-Control-Request-Headers',
+  'Access-Control-Request-Method',
+  'Age',
+  'Allow',
+  'Alt-Svc',
+  'Alt-Used',
+  'Authorization',
+  'Cache-Control',
+  'Clear-Site-Data',
+  'Connection',
+  'Content-Disposition',
+  'Content-Encoding',
+  'Content-Language',
+  'Content-Length',
+  'Content-Location',
+  'Content-Range',
+  'Content-Security-Policy',
+  'Content-Security-Policy-Report-Only',
+  'Content-Type',
+  'Cookie',
+  'Cross-Origin-Embedder-Policy',
+  'Cross-Origin-Opener-Policy',
+  'Cross-Origin-Resource-Policy',
+  'Date',
+  'Device-Memory',
+  'Downlink',
+  'ECT',
+  'ETag',
+  'Expect',
+  'Expect-CT',
+  'Expires',
+  'Forwarded',
+  'From',
+  'Host',
+  'If-Match',
+  'If-Modified-Since',
+  'If-None-Match',
+  'If-Range',
+  'If-Unmodified-Since',
+  'Keep-Alive',
+  'Last-Modified',
+  'Link',
+  'Location',
+  'Max-Forwards',
+  'Origin',
+  'Permissions-Policy',
+  'Pragma',
+  'Proxy-Authenticate',
+  'Proxy-Authorization',
+  'RTT',
+  'Range',
+  'Referer',
+  'Referrer-Policy',
+  'Refresh',
+  'Retry-After',
+  'Sec-WebSocket-Accept',
+  'Sec-WebSocket-Extensions',
+  'Sec-WebSocket-Key',
+  'Sec-WebSocket-Protocol',
+  'Sec-WebSocket-Version',
+  'Server',
+  'Server-Timing',
+  'Service-Worker-Allowed',
+  'Service-Worker-Navigation-Preload',
+  'Set-Cookie',
+  'SourceMap',
+  'Strict-Transport-Security',
+  'Supports-Loading-Mode',
+  'TE',
+  'Timing-Allow-Origin',
+  'Trailer',
+  'Transfer-Encoding',
+  'Upgrade',
+  'Upgrade-Insecure-Requests',
+  'User-Agent',
+  'Vary',
+  'Via',
+  'WWW-Authenticate',
+  'X-Content-Type-Options',
+  'X-DNS-Prefetch-Control',
+  'X-Frame-Options',
+  'X-Permitted-Cross-Domain-Policies',
+  'X-Powered-By',
+  'X-Requested-With',
+  'X-XSS-Protection'
+]
+
+for (let i = 0; i < wellknownHeaderNames.length; ++i) {
+  const key = wellknownHeaderNames[i]
+  const lowerCasedKey = key.toLowerCase()
+  headerNameLowerCasedRecord[key] = headerNameLowerCasedRecord[lowerCasedKey] =
+    lowerCasedKey
+}
+
+// Note: object prototypes should not be able to be referenced. e.g. `Object#hasOwnProperty`.
+Object.setPrototypeOf(headerNameLowerCasedRecord, null)
+
+module.exports = {
+  wellknownHeaderNames,
+  headerNameLowerCasedRecord
+}

lib/core/util.js

@@ -9,6 +9,7 @@ const { InvalidArgumentError } = require('./errors')
 const { Blob } = require('buffer')
 const nodeUtil = require('util')
 const { stringify } = require('querystring')
+const { headerNameLowerCasedRecord } = require('./constants')
 
 const [nodeMajor, nodeMinor] = process.versions.node.split('.').map(v => Number(v))
 
@@ -218,6 +219,15 @@ function parseKeepAliveTimeout (val) {
   return m ? parseInt(m[1], 10) * 1000 : null
 }
 
+/**
+ * Retrieves a header name and returns its lowercase value.
+ * @param {string | Buffer} value Header name
+ * @returns {string}
+ */
+function headerNameToString (value) {
+  return headerNameLowerCasedRecord[value] || value.toLowerCase()
+}
+
 function parseHeaders (headers, obj = {}) {
   // For H2 support
   if (!Array.isArray(headers)) return headers
@@ -483,6 +493,7 @@ module.exports = {
   isIterable,
   isAsyncIterable,
   isDestroyed,
+  headerNameToString,
   parseRawHeaders,
   parseHeaders,
   parseKeepAliveTimeout,