ws->exec

exec.js

// ws -> exec bridge
// npm i ws

const fs = require("fs");
const https = require('https');
const port = 3055;

var exec = require('child_process').exec;

const server = https.createServer({
  cert: fs.readFileSync('/home/pi/_gc/srv/crt/server.crt'),
  key: fs.readFileSync('/home/pi/_gc/srv/crt/server.key')
});

server.listen(port,()=> {
  console.log("https server started.");
});

var WebSocket = require('ws');
var wss = new WebSocket.Server({server:server}); 

process.on('unhandledRejection', console.dir);

var connections = new Map;

wss.on('connection', (ws,req)=> {
  let id=ws._ultron.id;
  console.log(id);

  var conn = {ws:ws, uid:ws._socket._handle.fd};
  connections.set(conn.uid,conn);
  console.log("[new connection]uid:"+conn.uid);

  conn.ws.on('close', ()=>{
    console.log("[connection closed]uid:"+conn.uid);
    connections.delete(conn.uid);
  });
  conn.ws.on('message', (message)=>{
    console.log("[onmessage]:"+message);
//    var mesobj = JSON.parse(message);
    if(message == "red"){
      exec("./red");
    }else if(message == "green"){
      exec("./green");
    }else{
      exec("./blue");
    }

//    broadcastMessage(message,conn);
  });
  conn.ws.on('error', (err)=>{
    console.log(err);
  });
});