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90 lines
3.0 KiB
90 lines
3.0 KiB
const net = require("net")
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const User = require("../src/user.js")
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const RPL_WELCOME = '001'
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const ERR_NOSUCHNICK = '401'
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const ERR_NOSUCHCHANNEL = '403'
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const ERR_CANNOTSENDTOCHAN = '404'
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const ERR_UNKNOWNCOMMAND = '421'
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const ERR_ERRONEUSNICKNAME = '432'
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const ERR_NONICKNAMEGIVEN = '431'
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const ERR_NICKNAMEINUSE = '433'
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const ERR_NEEDMOREPARAMS = '461'
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let server = {}
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server.create = function create() {
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let userlist = {}
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let server = net.createServer((socket) => {
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const user = new User(socket)
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socket.on('data', function (data) {
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let splitted = data.toString("ascii").split("\r\n")[0].split(" ")
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let tokenized = []
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let lastParam = -1
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for(let i = 0; i < splitted.length; i++) {
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if (lastParam > 0) {
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tokenized[lastParam] = tokenized[lastParam] + " " + splitted[i]
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} else if (splitted[i].charAt(0) == ":" && i > 0) {
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lastParam = i
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tokenized[lastParam] = splitted[i].slice(1)
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} else {
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tokenized[i] = splitted[i]
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}
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}
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let command = tokenized[0].toUpperCase()
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switch (command) {
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case "PING":
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if (tokenized[1] && tokenized[1] === "irc.example.com") {
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socket.write("PONG irc.example.com\r\n")
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}
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break;
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case "NICK":
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if (tokenized[1]) {
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let nickname = tokenized[1]
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// nick collision test
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if (!Object.keys(userlist).includes(nickname)) {
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user.setNickname(nickname)
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userlist[user.nickname] = user
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} else {
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socket.write(ERR_NICKNAMEINUSE, " nickname in use")
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}
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} else {
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socket.write(ERR_NONICKNAMEGIVEN, "ERROR: NO NICKNAME PROVIDED")
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}
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break;
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case "USER":
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// ignoring servername and hostname, not useful these days
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user.register(tokenized[1], tokenized[4])
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let address = user.getAddress()
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socket.write(`001 ${user.nickname} :Welcome to the example IRC Project ${user.nickname}!~${user.username}@${address}`)
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break;
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case "PRIVMSG":
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let target = userlist[tokenized[1]]
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let message = tokenized[2]
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target.sendMsg(user, message)
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break;
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default:
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console.error(`Unknown command: ${command}`);
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}
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}).on('error', (err) => {
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console.error(err);
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})
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}).on('error', (err) => {
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console.error(err);
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throw err;
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});
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server.getUserlist = function() {
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return userlist
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}
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return server
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}
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module.exports = server
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