const http = require("http").Server(); const io = require("socket.io")(http); const sanitizeHtml = require("sanitize-html"); const HOST = "0.0.0.0", PORT = 19132; // Currently connected users and users in each channel (for possible future use). let onlineUsers = []; let channels = new Map([["#general", []]]); io.on("connection", sock => { console.log(`[ OK ] Client connected from ${sock.handshake.address}!`); let name, clientObj, isAfk = false; channel = "#general"; sock.on("msg", (msg) => { msg = sanitizeHtml(msg); // If the user hasn't entered a name yet. if (name == undefined) { name = (msg.length <= 27) ? msg : msg.slice(0, 28); clientObj = [name, sock.id, sock.handshake.address]; // Add client to list of clients and channel. onlineUsers.push(clientObj); channels.get(channel).push(clientObj); // Send connection message and online user list update. io.emit("msg", `* ${name}: connected to the server!`); io.emit("olusud", channels.get(channel).map(i => `${i[0]} ${i[2]}`)); } else { // Send regular plain text message. if (2000 > msg.length > 0) { io.emit("msg", `${name}: ${msg}`); } } }); // Third person message command. sock.on("msg-me", msg => { msg = sanitizeHtml(msg); if (2000 > msg.length > 0 && name != undefined) { io.emit("msg", `* ${name} ${msg.split(" ").slice(1).join(" ")}.`); } }); // Toggle AFK status command. sock.on("afk", () => { isAfk = !isAfk; // Send AFK update. if (isAfk) { io.emit("msg", `* ${name} is now AFK!`); name += " (AFK)"; } else { name = name.slice(0, name.length - 6); io.emit("msg", `* ${name} is no longer AFK!`); } // Replace reference with name and send online user list update. clientObj[0] = name; io.emit("olusud", channels.get(channel).map(i => `${i[0]} ${i[2]}`)); }); sock.on("disconnect", () => { console.log("[ OK ] Client disconnected!"); // If the user has entered a username (and therefore has been added to the lists). if (name != undefined) { // Remove from lists. onlineUsers = onlineUsers.filter(i => i != clientObj); channels.set(channel, channels.get(channel).filter(i => i != clientObj)); // Send disconnection message and online user list update. io.emit("msg", `* ${name}: disconnected from the server!`); io.emit("olusud", channels.get(channel).map(i => `${i[0]} ${i[2]}`)); } }); }); http.listen(PORT, HOST, () => { console.log(`[ OK ] Listening at ${HOST}:${PORT}`); });

[JS] Harmony Server