Sugeng rawuh, Habr. Iki minangka artikel kaping 2 ing seri ssh-chat.
Apa sing bakal kita lakoni:
- Ayo nambah kemampuan kanggo nggawe fungsi desain dhewe
- Ayo nambah dhukungan markdown
- Ayo nambah dhukungan bot
- Tambah keamanan sandi (hash lan uyah)
Nuwun sewu, nanging ora bakal dikirim file.
Fitur desain khusus
Saiki, fungsi desain ing ngisor iki didhukung:
@color
@bold
@underline
@hex
@box
Nanging perlu nambah kemampuan kanggo nggawe fungsi sampeyan dhewe:
Kabeh fungsi disimpen ingΠΎΠ±ΡΠ΅ΠΊΡΠ΅ ΠΏΠΎΠ΄ Π½Π°Π·Π²Π°Π½ΠΈΠ΅ΠΌ methods
Dadi bakal cukup kanggo nggawe fungsiregisterMethod
:
// parserExec.js at end
module.exports.registerMethod = function(name, func) {
methods[name] = func
}
Sampeyan uga kudu mbalekake cara iki sawise nggawe server
// index.js at require part
const { registerMethod } = require('./parserExec')
// index.js at end
module.exports.registerMethod = registerMethod
Saiki, nalika nggawe server, kita bisa ndhaptar cara format. Tuladha:
const chat = require('.')
const { formatNick } = require('./format')
chat({})
chat.registerMethod('hello', function(p, name){
return 'Hi, ' + formatNick(name) + '!'
})
Dhukungan markdown
Markdown trep banget, mula ayo nambah nggunakake
// 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-bot
Carane bakal bisa
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
bisa diarani nggunakake @bot(botBob){Command}
Kabeh kanggo nggarap bot diterangake ing file:
let bots = []; // ΠΡΠ΅ Π±ΠΎΡΡ
let onWrite = () => {};
function getWrite(bot) { // ΠΠ΅Π½Π΅ΡΠΈΡΡΠ΅Ρ ΠΌΠ΅ΡΠΎΠ΄ ΠΎΡΠΏΡΠ°Π²ΠΊΠΈ ΡΠΎΠΎΠ±ΡΠ΅Π½ΠΈΡ Π΄Π»Ρ Π±ΠΎΡΠ°
return msg => {
onWrite(bot.name, msg);
};
}
module.exports.message = function message(nick, message) { // index.js Π²ΡΠΏΠΎΠ»Π½ΠΈΡ ΡΡΡ ΡΡΠ½ΠΊΡΠΈΡ ΠΏΠΎΡΠ»Π΅ ΠΎΡΠΏΡΠ°Π²ΠΊΠΈ ΡΠΎΠΎΠ±ΡΠ΅Π½ΠΈΡ
bots.forEach(bot => {
try {
bot.onMessage(nick, message, getWrite(bot));
} catch (e) {
console.error(e);
}
});
};
module.exports.connect = function message(nick) { // ΠΡΠΈ ΡΠΎΠ΅Π΄ΠΈΠ½Π΅Π½ΠΈΠΈ
bots.forEach(bot => {
try {
bot.onConnect(nick, getWrite(bot));
} catch (e) {
console.error(e);
}
});
};
module.exports.disConnect = function message(nick) { // ΠΡΠΈ ΠΎΡΡΠΎΠ΅Π΄ΠΈΠ½Π΅Π½ΠΈΠΈ
bots.forEach(bot => {
try {
bot.onDisconnect(nick, message, getWrite(bot));
} catch (e) {
console.error(e);
}
});
};
module.exports.command = function message(name, message) { // ΠΡΠΈ Π²ΡΠΏΠΎΠ»Π½Π΅Π½ΠΈΠΈ ΠΊΠΎΠΌΠ°Π½Π΄Ρ
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;
};
Apa sampeyan bisa nindakake karo bot:
- Muat monitor
- masang
- Papan tugas
Hash lan uyah
Apa ora tombol ssh? Amarga tombol ssh bakal beda ing piranti sing beda
Ayo nggawe file sing bakal tanggung jawab kanggo mriksa lan nggawe sandhi
// 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
Uga script kanggo salting lan hashing sandi
// To generate password run node ./encryptPassword password
const { encodePass } =require('./crypto')
console.log(encodePass(process.argv[2]))
Kita nganyari ing users.json lan tinimbang mbandhingake ing lobby.js kita nggunakake checkPassword
Asile
AkibatΓ©, kita ngobrol liwat ssh kanthi kapabilitas desain lan bot.
Source: www.habr.com