Dockerfile

@@ -1,4 +1,4 @@
-= require(node:10.1.0-alpine
+FROM node:10.1.0-alpine
 
 WORKDIR /app
 

README.md

@@ -13,7 +13,7 @@ The default localtunnel client connects to the `localtunnel.me` server. You can,
 * You can set up DNS entries for your `domain.tld` and `*.domain.tld` (or `sub.domain.tld` and `*.sub.domain.tld`).
 * The server can accept incoming TCP connections for any non-root TCP port (i.e. ports over 1000).
 
-The above are constant as the client will ask the server for a subdomain under a particular domain. The server will listen on any OS-assigned TCP port for client connections.
+The above are important as the client will ask the server for a subdomain under a particular domain. The server will listen on any OS-assigned TCP port for client connections.
 
 #### setup
 

bin/server

@@ -1,12 +1,12 @@
 #!/usr/bin/env node -r esm
 
-require('localenv');
-const optimist = require('optimist');
+import 'localenv';
+import optimist from 'optimist';
 
-const log = require('book');
-const Debug = require('debug');
+import log from 'book';
+import Debug from 'debug';
 
-const CreateServer = require('../server');
+import CreateServer from '../server';
 
 const debug = Debug('localtunnel');
 
@@ -25,7 +25,7 @@ const argv = optimist
         describe: 'IP address to bind to'
     })
     .options('domain', {
-        describe: 'Specify the base domain name. This is optional if hosting localtunnel = require(a regular example.com domain. This is required if hosting a localtunnel server = require(a subdomain (i.e. lt.example.dom where clients will be client-app.lt.example.come)',
+        describe: 'Specify the base domain name. This is optional if hosting localtunnel from a regular example.com domain. This is required if hosting a localtunnel server from a subdomain (i.e. lt.example.dom where clients will be client-app.lt.example.come)',
     })
     .options('max-sockets', {
         default: 10,

lib/Client.js

@@ -1,7 +1,7 @@
-const http = require('http');
-const Debug = require('debug');
-const pump = require('pump');
-const EventEmitter = require('events');
+import http from 'http';
+import Debug from 'debug';
+import pump from 'pump';
+import EventEmitter from 'events';
 
 // A client encapsulates req/res handling using an agent
 //
@@ -129,4 +129,4 @@ class Client extends EventEmitter {
     }
 }
 
-module.exports = Client;
+export default Client;

lib/Client.test.js

@@ -1,10 +1,10 @@
-const assert = require('assert';
-const http = require('http';
-const { Duplex } = require('stream';
-const WebSocket = require('ws';
-const net = require('net';
+import assert from 'assert';
+import http from 'http';
+import { Duplex } from 'stream';
+import WebSocket from 'ws';
+import net from 'net';
 
-const Client = require('./Client';
+import Client from './Client';
 
 class DummySocket extends Duplex {
     constructor(options) {

lib/ClientManager.js

@@ -1,8 +1,8 @@
-const { hri } = require('human-readable-ids');
-const Debug = require('debug');
+import { hri } from 'human-readable-ids';
+import Debug from 'debug';
 
-const Client = require('./Client');
-const TunnelAgent = require('./TunnelAgent');
+import Client from './Client';
+import TunnelAgent from './TunnelAgent';
 
 // Manage sets of clients
 //
@@ -93,4 +93,4 @@ class ClientManager {
     }
 }
 
-module.exports = ClientManager;
+export default ClientManager;

lib/ClientManager.test.js

@@ -1,7 +1,7 @@
-const assert = require('assert';
-const net = require('net';
+import assert from 'assert';
+import net from 'net';
 
-const ClientManager = require('./ClientManager';
+import ClientManager from './ClientManager';
 
 describe('ClientManager', () => {
     it('should construct with no tunnels', () => {

lib/TunnelAgent.js

@@ -1,8 +1,8 @@
-const { Agent } = require('http');
-const net = require('net');
-const assert = require('assert');
-const log = require('book');
-const Debug = require('debug');
+import { Agent } from 'http';
+import net from 'net';
+import assert from 'assert';
+import log from 'book';
+import Debug from 'debug';
 
 const DEFAULT_MAX_SOCKETS = 10;
 
@@ -14,7 +14,7 @@ class TunnelAgent extends Agent {
         super({
             keepAlive: true,
             // only allow keepalive to hold on to one socket
-            // this prevents it = require(holding on to all the sockets so they can be used for upgrades
+            // this prevents it from holding on to all the sockets so they can be used for upgrades
             maxFreeSockets: 1,
         });
 
@@ -55,7 +55,7 @@ class TunnelAgent extends Agent {
         server.on('close', this._onClose.bind(this));
         server.on('connection', this._onConnection.bind(this));
         server.on('error', (err) => {
-            // These errors happen = require(killed connections, we don't worry about them
+            // These errors happen from killed connections, we don't worry about them
             if (err.code == 'ECONNRESET' || err.code == 'ETIMEDOUT') {
                 return;
             }
@@ -86,7 +86,7 @@ class TunnelAgent extends Agent {
         this.emit('end');
     }
 
-    // new socket connection = require(client for tunneling requests to client
+    // new socket connection from client for tunneling requests to client
     _onConnection(socket) {
         // no more socket connections allowed
         if (this.connectedSockets >= this.maxTcpSockets) {
@@ -98,7 +98,7 @@ class TunnelAgent extends Agent {
         socket.once('close', (hadError) => {
             this.debug('closed socket (error: %s)', hadError);
             this.connectedSockets -= 1;
-            // remove the socket = require(available list
+            // remove the socket from available list
             const idx = this.availableSockets.indexOf(socket);
             if (idx >= 0) {
                 this.availableSockets.splice(idx, 1);
@@ -113,7 +113,7 @@ class TunnelAgent extends Agent {
 
         // close will be emitted after this
         socket.once('error', (err) => {
-            // we do not log these errors, sessions can drop = require(clients for many reasons
+            // we do not log these errors, sessions can drop from clients for many reasons
             // these are not actionable errors for our server
             socket.destroy();
         });
@@ -139,7 +139,7 @@ class TunnelAgent extends Agent {
         this.availableSockets.push(socket);
     }
 
-    // fetch a socket = require(the available socket pool for the agent
+    // fetch a socket from the available socket pool for the agent
     // if no socket is available, queue
     // cb(err, socket)
     createConnection(options, cb) {
@@ -172,4 +172,4 @@ class TunnelAgent extends Agent {
     }
 }
 
-module.exports = TunnelAgent;
+export default TunnelAgent;

lib/TunnelAgent.test.js

@@ -1,8 +1,8 @@
-const http = require('http';
-const net = require('net';
-const assert = require('assert';
+import http from 'http';
+import net from 'net';
+import assert from 'assert';
 
-const TunnelAgent = require('./TunnelAgent';
+import TunnelAgent from './TunnelAgent';
 
 describe('TunnelAgent', () => {
     it('should create an empty agent', async () => {

server.js

@@ -1,16 +1,16 @@
-const log = require('book');
-const Koa = require('koa');
-const tldjs = require('tldjs');
-const Debug = require('debug');
-const http = require('http');
-const { hri } = require('human-readable-ids');
-const Router = require('koa-router');
+import log from 'book';
+import Koa from 'koa';
+import tldjs from 'tldjs';
+import Debug from 'debug';
+import http from 'http';
+import { hri } from 'human-readable-ids';
+import Router from 'koa-router';
 
-const ClientManager = require('./lib/ClientManager');
+import ClientManager from './lib/ClientManager';
 
 const debug = Debug('localtunnel:server');
 
-module.exports =  function(opt) {
+export default function(opt) {
     opt = opt || {};
 
     const validHosts = (opt.domain) ? [opt.domain] : undefined;

server.test.js

@@ -1,10 +1,10 @@
-const request = require('supertest';
-const assert = require('assert';
-const { Server as WebSocketServer } = require('ws';
-const WebSocket = require('ws';
-const net = require('net';
+import request from 'supertest';
+import assert from 'assert';
+import { Server as WebSocketServer } from 'ws';
+import WebSocket from 'ws';
+import net from 'net';
 
-const createServer = require('./server';
+import createServer from './server';
 
 describe('Server', () => {
     it('server starts and stops', async () => {