MLE-24397 - fix reported issue on Linux FIPS around exception caused by default load of FIPS-forbidden MD5 digest algorithm. Incorporate the source from the abandoned www-authenticate project to lib/www-authenticate-patched, and fix in place.

Changes to www-authenticate-patched include: removal of unnecessary pre-load of MD5 digester function from www-authenticate and md5 js files, use of Buffer.from rather than new Buffer (deprecated), and moving a prototype decl to after function has been defined.
Add Progress copyright and typedef comment to Authenticator.

Author: stevebio

lib/www-authenticate-patched/md5.js

@@ -1,6 +1,4 @@
-var crypto= require('crypto')
-  , md5sum = crypto.createHash('md5')
-  ;
+var crypto= require('crypto');
 
 function md5(s) {
   return crypto.createHash('md5').update(s).digest('hex');

lib/www-authenticate-patched/parsers.js

@@ -88,8 +88,6 @@ function Parse_WWW_Authenticate(to_parse)
   }
 }
 
-Parse_Authentication_Info.prototype.parse_params= parse_params;
-
 function Parse_Authentication_Info(to_parse)
 {
   this.scheme= 'Digest';
@@ -102,6 +100,7 @@ function Parse_Authentication_Info(to_parse)
   }
 }
 
+Parse_Authentication_Info.prototype.parse_params= parse_params;
 Parse_WWW_Authenticate.prototype.parse_params= parse_params;
 
 module.exports = {

lib/www-authenticate-patched/user-credentials.js

@@ -16,9 +16,9 @@ function user_credentials(username,password,options) {
     ''
     :
       (!password && password !== '' ?
-        new Buffer(username, "ascii").toString("base64")
+        Buffer.from(username, "ascii").toString("base64")
       :
-        new Buffer(username+':'+password, "ascii").toString("base64")
+        Buffer.from(username+':'+password, "ascii").toString("base64")
       )
   function Credentials()
   {

lib/www-authenticate-patched/www-authenticate.js

@@ -7,10 +7,13 @@
  * Licensed under the MIT license.
  */
 
+/*
+ * Copyright © 2015-2025 Progress Software Corporation and/or its subsidiaries or affiliates. All Rights Reserved.
+ */
+
 'use strict';
 
 var crypto= require('crypto')
-  , md5sum = crypto.createHash('md5')
   , parsers= require('./parsers')
   , md5= require('./md5')
   , user_credentials= require('./user-credentials')
@@ -40,6 +43,20 @@ var www_authenticator = function(username,password,options)
       cnonce= options.cnonce;
   }
   if (cnonce === void 0) cnonce= crypto.pseudoRandomBytes(8).toString('hex');
+
+  /**
+   * @typedef {Object} Authenticator
+   * @property {any} [err]
+   * @property {function(string=, string=): string} [authorize]
+   * @property {any} [parms]
+   * @property {string} [cnonce]
+   */
+
+  /**
+   * Parses the WWW-Authenticate header.
+   * @param {string} www_authenticate
+   * @returns {Authenticator}
+   */
   var parse_header= function(www_authenticate)
   {
     function Authenticator()