netdde/test/client/test01.js

A JavaScript implementation of the NetDDE protocol

const net = require('net');
const NetDDEClientSerializer = require('../../src/client/serializer');
const NetDDEClientParser = require('../../src/client/parser');
const C = require('../../src/constants');
const os = require('os');

let serializer = new NetDDEClientSerializer();
let parser = new NetDDEClientParser();

let counter = 1, convPtr, convId, currentService;

serializer.on('error', e => console.log(' # Serializer ERROR:', e));
parser.on('error', e => console.log(' # Serializer ERROR:', e));
parser.on('data', d => console.log(' < DATA', d));
parser.on('data', d => {
    if (d.type == C.DDE_CREATE_CONVERSATION) {
        convPtr = d.payload.convPtr;
        convId = d.payload.convId;
    }
});

let sock = net.createConnection(8888, '192.168.15.119');
sock.on('error', e => console.log(' # Socket ERROR:', e));
sock.on('connect', () => console.log(' # Socket Connected!'));
sock.pipe(parser);
serializer.pipe(sock);

function send(type, payload) {
    serializer.write({
        id: counter++,
        type, payload 
    })
}

function connect(service = 'PROGMAN') {
    currentService = service;
    send(C.NETDDE_CLIENT_CONNECT, {
        service: service,
        computer: os.hostname(),
        user: os.userInfo().username,
        process: process.argv0,
        version: "v2.0"
    })
}

function convStart(service = 'PROGMAN', topic = 'PROGMAN') {
    send(C.DDE_CREATE_CONVERSATION, { service, topic });
}

function convRequest(item) {
    send(C.DDE_REQUEST, { convPtr, convId, item });
}

function end() {
    send(C.DDE_DESTROY_CONVERSATION, { convPtr, convId});
    send(C.NETDDE_CLIENT_DISCONNECT, { service: currentService, computer: os.hostname()});
    sock.end();
}