ya funcionando el mcp, vamos a continuar

mcp/node_modules/express/lib/utils.js

@@ -12,17 +12,20 @@
  * @api private
  */
 
-var Buffer = require('safe-buffer').Buffer
-var contentDisposition = require('content-disposition');
+var { METHODS } = require('node:http');
 var contentType = require('content-type');
-var deprecate = require('depd')('express');
-var flatten = require('array-flatten');
-var mime = require('send').mime;
 var etag = require('etag');
+var mime = require('mime-types')
 var proxyaddr = require('proxy-addr');
 var qs = require('qs');
 var querystring = require('querystring');
 
+/**
+ * A list of lowercased HTTP methods that are supported by Node.js.
+ * @api private
+ */
+exports.methods = METHODS.map((method) => method.toLowerCase());
+
 /**
  * Return strong ETag for `body`.
  *
@@ -45,31 +48,6 @@ exports.etag = createETagGenerator({ weak: false })
 
 exports.wetag = createETagGenerator({ weak: true })
 
-/**
- * Check if `path` looks absolute.
- *
- * @param {String} path
- * @return {Boolean}
- * @api private
- */
-
-exports.isAbsolute = function(path){
-  if ('/' === path[0]) return true;
-  if (':' === path[1] && ('\\' === path[2] || '/' === path[2])) return true; // Windows device path
-  if ('\\\\' === path.substring(0, 2)) return true; // Microsoft Azure absolute path
-};
-
-/**
- * Flatten the given `arr`.
- *
- * @param {Array} arr
- * @return {Array}
- * @api private
- */
-
-exports.flatten = deprecate.function(flatten,
-  'utils.flatten: use array-flatten npm module instead');
-
 /**
  * Normalize the given `type`, for example "html" becomes "text/html".
  *
@@ -81,7 +59,7 @@ exports.flatten = deprecate.function(flatten,
 exports.normalizeType = function(type){
   return ~type.indexOf('/')
     ? acceptParams(type)
-    : { value: mime.lookup(type), params: {} };
+    : { value: (mime.lookup(type) || 'application/octet-stream'), params: {} }
 };
 
 /**
@@ -92,27 +70,10 @@ exports.normalizeType = function(type){
  * @api private
  */
 
-exports.normalizeTypes = function(types){
-  var ret = [];
-
-  for (var i = 0; i < types.length; ++i) {
-    ret.push(exports.normalizeType(types[i]));
-  }
-
-  return ret;
+exports.normalizeTypes = function(types) {
+  return types.map(exports.normalizeType);
 };
 
-/**
- * Generate Content-Disposition header appropriate for the filename.
- * non-ascii filenames are urlencoded and a filename* parameter is added
- *
- * @param {String} filename
- * @return {String}
- * @api private
- */
-
-exports.contentDisposition = deprecate.function(contentDisposition,
-  'utils.contentDisposition: use content-disposition npm module instead');
 
 /**
  * Parse accept params `str` returning an
@@ -124,16 +85,33 @@ exports.contentDisposition = deprecate.function(contentDisposition,
  */
 
 function acceptParams (str) {
-  var parts = str.split(/ *; */);
-  var ret = { value: parts[0], quality: 1, params: {} }
+  var length = str.length;
+  var colonIndex = str.indexOf(';');
+  var index = colonIndex === -1 ? length : colonIndex;
+  var ret = { value: str.slice(0, index).trim(), quality: 1, params: {} };
 
-  for (var i = 1; i < parts.length; ++i) {
-    var pms = parts[i].split(/ *= */);
-    if ('q' === pms[0]) {
-      ret.quality = parseFloat(pms[1]);
-    } else {
-      ret.params[pms[0]] = pms[1];
+  while (index < length) {
+    var splitIndex = str.indexOf('=', index);
+    if (splitIndex === -1) break;
+
+    var colonIndex = str.indexOf(';', index);
+    var endIndex = colonIndex === -1 ? length : colonIndex;
+
+    if (splitIndex > endIndex) {
+      index = str.lastIndexOf(';', splitIndex - 1) + 1;
+      continue;
     }
+
+    var key = str.slice(index, splitIndex).trim();
+    var value = str.slice(splitIndex + 1, endIndex).trim();
+
+    if (key === 'q') {
+      ret.quality = parseFloat(value);
+    } else {
+      ret.params[key] = value;
+    }
+
+    index = endIndex + 1;
   }
 
   return ret;
@@ -192,7 +170,6 @@ exports.compileQueryParser = function compileQueryParser(val) {
       fn = querystring.parse;
       break;
     case false:
-      fn = newObject;
       break;
     case 'extended':
       fn = parseExtendedQueryString;
@@ -290,14 +267,3 @@ function parseExtendedQueryString(str) {
     allowPrototypes: true
   });
 }
-
-/**
- * Return new empty object.
- *
- * @return {Object}
- * @api private
- */
-
-function newObject() {
-  return {};
-}