Ssh-chat, fizarana 2

Salama, Habr. Ity no lahatsoratra faha-2 amin'ny andiany ssh-chat.

Inona no hataontsika:

• Andeha ampio ny fahafahana mamorona asa famolavolana anao manokana
• Andeha isika hanampy markdown fanohanana
• Andeha isika hanampy bot fanohanana
• Ampitomboy ny fiarovana ny tenimiafina (hash sy sira)
  Miala tsiny fa tsy hisy fandefasana rakitra.

endri-javatra famolavolana manokana

Amin'izao fotoana izao, ireto asa famolavolana manaraka ireto dia tohana:

• @color
• @bold
• @underline
• @hex
• @box
  Saingy ilaina ny manampy ny fahafahana mamorona ny asanao manokana:
  Ny fiasa rehetra dia voatahiry ao объекте под названием methods
  Noho izany dia ho ampy ny mamorona asa registerMethod:

// parserExec.js at end
module.exports.registerMethod  =  function(name, func) {
  methods[name] =  func
}

Mila mamerina ity fomba ity ihany koa ianao rehefa avy namorona ny mpizara

// index.js at require part
const { registerMethod } = require('./parserExec')

// index.js at end
module.exports.registerMethod  =  registerMethod

Ankehitriny, rehefa mamorona mpizara, dia afaka misoratra anarana fomba fandrafetana. Ohatra:

const  chat  =  require('.')
const { formatNick } =  require('./format')

chat({})

chat.registerMethod('hello', function(p, name){
  return  'Hi, '  +  formatNick(name) +  '!'
})

Fanohanana markdown

Tena mety ny Markdown, koa andao hampiasaina voamarika ny terminal

// format.js near require
const marked = require('marked');
const TerminalRenderer = require('marked-terminal');

marked.setOptions({
  renderer: new TerminalRenderer()
});

// format.js line 23
message = marked(message)

Bot

Hanao ahoana izany

let writeBotBob = chat.registerBot({
  name: 'botBob',

  onConnect(nick, write){
    write('@hello{' + nick + '}')
  },

  onDisconnect(nick, write){},

  onMessage(nick, message, write) {
    if(message == 'botBob!') write('I'm here')
  },

  onCommand(command, write) {
    write('Doing ' + command)
  }
})

onCommand azo antsoina hoe mampiasa @bot(botBob){Command}

Ny zava-drehetra momba ny fiasana amin'ny bots dia voalaza ao amin'ny rakitra:

let bots = []; // Все боты

let onWrite = () => {}; 

function getWrite(bot) { // Генерирует метод отправки сообщения для бота
  return msg => {
    onWrite(bot.name, msg);
  };
}

module.exports.message = function message(nick, message) { // index.js выполнит эту функцию после отправки сообщения
  bots.forEach(bot => {
    try {
      bot.onMessage(nick, message, getWrite(bot));
    } catch (e) {
      console.error(e);
    }
  });
};

module.exports.connect = function message(nick) { // При соединении
  bots.forEach(bot => {
    try {
      bot.onConnect(nick, getWrite(bot));
    } catch (e) {
      console.error(e);
    }
  });
};

module.exports.disConnect = function message(nick) { // При отсоединении
  bots.forEach(bot => {
    try {
      bot.onDisconnect(nick, message, getWrite(bot));
    } catch (e) {
      console.error(e);
    }
  });
};

module.exports.command = function message(name, message) { // При выполнении команды
  bots.forEach(bot => {
    if (bot.name == name) {
      try {
        bot.onCommand(message, getWrite(bot));
      } catch (e) {
        console.error(e);
      }
    }
  });
};

module.exports.registerBot = function(bot) {
  bots.push(bot);
  return  getWrite(bot)
};

module.exports.onMessage = func => {
  onWrite = func;
};

Inona no azonao atao amin'ny bots:

• Load monitor
• miisa
• Tabilao asa

Hash sy sira

Nahoana no tsy ssh keys? Satria ny fanalahidy ssh dia tsy mitovy amin'ny fitaovana samihafa
Andao hamorona rakitra iray izay ho tompon'andraikitra amin'ny fanamarinana sy famoronana tenimiafina

// crypto.js
const crypto = require('crypto');

function genRandomString(length) {
  return crypto
    .randomBytes(Math.ceil(length / 2))
    .toString('hex')
    .slice(0, length);
}

function sha512(password, salt){
  const hash = crypto.createHmac('sha512', salt); /** Hashing algorithm sha512 */
  hash.update(password);
  const value = hash.digest('hex');
  return value
};

function checkPass(pass, obj){
  return obj.password == sha512(pass, obj.salt)
}

function encodePass(pass){
  const salt = genRandomString(16)
  return JSON.stringify({
    salt,
    password: sha512(pass, salt)
  })
}

module.exports.encodePass = encodePass
module.exports.checkPass = checkPass

Misy ihany koa script ho an'ny sira sy hashing ny tenimiafina

// To generate password run node ./encryptPassword password
const { encodePass } =require('./crypto')
console.log(encodePass(process.argv[2]))

Manavao amin'ny users.json izahay fa tsy mampitaha ao amin'ny lobby.js dia mampiasa checkPassword

Ny vokany

Vokatr'izany dia manana chat amin'ny ssh izahay miaraka amin'ny fahaiza-manao famolavolana sy bots.
Repository farany

Source: www.habr.com