http: reduce usage of public util

PR-URL: #26548
Refs: #26546
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>

Author: ZYSzys

lib/_http_agent.js

@@ -22,9 +22,8 @@
 'use strict';
 
 const net = require('net');
-const util = require('util');
 const EventEmitter = require('events');
-const debug = util.debuglog('http');
+const debug = require('internal/util/debuglog').debuglog('http');
 const { async_id_symbol } = require('internal/async_hooks').symbols;
 
 // New Agent code.
@@ -106,7 +105,8 @@ function Agent(options) {
   });
 }
 
-util.inherits(Agent, EventEmitter);
+Object.setPrototypeOf(Agent.prototype, EventEmitter.prototype);
+Object.setPrototypeOf(Agent, EventEmitter);
 
 Agent.defaultMaxSockets = Infinity;
 

lib/_http_common.js

@@ -36,7 +36,7 @@ const {
   readStop
 } = incoming;
 
-const debug = require('util').debuglog('http');
+const debug = require('internal/util/debuglog').debuglog('http');
 
 const kIncomingMessage = Symbol('IncomingMessage');
 const kOnHeaders = HTTPParser.kOnHeaders | 0;

lib/_http_outgoing.js

@@ -23,7 +23,6 @@
 
 const assert = require('internal/assert');
 const Stream = require('stream');
-const util = require('util');
 const internalUtil = require('internal/util');
 const { outHeadersKey, utcDate } = require('internal/http');
 const { Buffer } = require('buffer');
@@ -104,7 +103,8 @@ function OutgoingMessage() {
 
   this._onPendingData = noopPendingOutput;
 }
-util.inherits(OutgoingMessage, Stream);
+Object.setPrototypeOf(OutgoingMessage.prototype, Stream.prototype);
+Object.setPrototypeOf(OutgoingMessage, Stream);
 
 
 Object.defineProperty(OutgoingMessage.prototype, '_headers', {

lib/_http_server.js

@@ -21,7 +21,6 @@
 
 'use strict';
 
-const util = require('util');
 const net = require('net');
 const assert = require('internal/assert');
 const {
@@ -136,7 +135,8 @@ function ServerResponse(req) {
     this.shouldKeepAlive = false;
   }
 }
-util.inherits(ServerResponse, OutgoingMessage);
+Object.setPrototypeOf(ServerResponse.prototype, OutgoingMessage.prototype);
+Object.setPrototypeOf(ServerResponse, OutgoingMessage);
 
 ServerResponse.prototype._finish = function _finish() {
   DTRACE_HTTP_SERVER_RESPONSE(this.connection);
@@ -306,7 +306,8 @@ function Server(options, requestListener) {
   this.maxHeadersCount = null;
   this.headersTimeout = 40 * 1000; // 40 seconds
 }
-util.inherits(Server, net.Server);
+Object.setPrototypeOf(Server.prototype, net.Server.prototype);
+Object.setPrototypeOf(Server, net.Server);
 
 
 Server.prototype.setTimeout = function setTimeout(msecs, callback) {