TcpSockets.js

/**
 * Copyright (c) 2015-present, Peel Technologies, Inc.
 * All rights reserved.
 *
 * @providesModule TcpSockets
 * @flow
 */

var ipRegex = require('ip-regex');

var Socket = require('./TcpSocket');
var Server = require('./TcpServer');

exports.createServer = function (
  connectionListener: (socket: Socket) => void,
): Server {
  return new Server(connectionListener);
};

// TODO : determine how to properly overload this with flow
exports.connect = exports.createConnection = function (): Socket {
  var tcpSocket = new Socket();
  return Socket.prototype.connect.apply(
    tcpSocket,
    tcpSocket._normalizeConnectArgs(arguments),
  );
};

exports.isIP = function (input: string): number {
  var result = 0;
  if (ipRegex.v4({ exact: true }).test(input)) {
    result = 4;
  } else if (ipRegex.v6({ exact: true }).test(input)) {
    result = 6;
  }
  return result;
};

exports.isIPv4 = function (input: string): boolean {
  return exports.isIP(input) === 4;
};

exports.isIPv6 = function (input: string): boolean {
  return exports.isIP(input) === 6;
};

exports.Socket = Socket;
exports.Server = Server;