338 lines
10 KiB
TypeScript
338 lines
10 KiB
TypeScript
import Config from "./objects/Config";
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import SimpleProm from "simple-prom";
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import Gauge from "simple-prom/lib/objects/Gauge";
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import Counter from "simple-prom/lib/objects/Counter";
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const metrics = SimpleProm.init({
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selfHost: true,
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selfHostPort: Config.ports.metrics ?? 9100
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});
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const onlineUsers = metrics.addMetric(new Gauge("multiprobe_open_connections"));
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onlineUsers.setHelpText("Number of connections to the websocket");
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const onlineUsersUnique = metrics.addMetric(new Gauge("multiprobe_unique_connections"));
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onlineUsersUnique.setHelpText("Number of unique user connections to the websocket");
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const dataIn = metrics.addMetric(new Counter("multiprobe_data_in"));
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dataIn.setHelpText("Data received by the server in bytes");
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const messagesIn = metrics.addMetric(new Counter("multiprobe_msg_in"));
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dataIn.setHelpText("Total messages received by the server");
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const dataOut = metrics.addMetric(new Counter("multiprobe_data_out"));
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dataOut.setHelpText("Data sent by the server in bytes");
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const messagesOut = metrics.addMetric(new Counter("multiprobe_msg_out"));
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dataIn.setHelpText("Total messages sent by the server");
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import { createReader, createWriter, Endian } from "bufferstuff";
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import { WebSocketServer } from "ws";
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import Fastify from "fastify";
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import FastifyFormBody from "@fastify/formbody";
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import FastifyCookie from "@fastify/cookie";
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import FastifyView from "@fastify/view";
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import FastifyStatic from "@fastify/static";
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import EJS from "ejs";
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import FunkyArray from "funky-array";
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import RemoteUser from "./objects/RemoteUser";
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import { MessageType } from "./enums/MessageType";
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import Database from "./objects/Database";
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import { Console } from "hsconsole";
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import UserService from "./services/UserService";
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import Party from "./entities/Party";
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import Controller from "./controller/Controller";
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import HomeController from "./controller/HomeController";
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import AccountController from "./controller/AccountController";
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import PartyController from "./controller/PartyController";
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import ApiController from "./controller/ApiController";
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import PartyService from "./services/PartyService";
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import AdminController_Auth$Admin from "./controller/AdminController";
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import { join } from "path";
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Console.customHeader(`MultiProbe server started at ${new Date()}`);
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const users = new FunkyArray<string, RemoteUser>();
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new Database(Config.database.address, Config.database.port, Config.database.username, Config.database.password, Config.database.name);
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// Web stuff
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const fastify = Fastify({
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logger: false
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});
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fastify.register(FastifyView, { engine: { ejs: EJS } });
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fastify.register(FastifyFormBody);
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fastify.register(FastifyCookie, {
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secret: Config.session.secret,
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parseOptions: {
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path: "/",
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secure: true
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}
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});
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fastify.register(FastifyStatic, {
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root: join(__dirname, "wwwroot"),
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prefix: `/`
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});
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fastify.setNotFoundHandler(async (req, res) => {
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return res.status(404).view("views/404.ejs", { });
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});
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Controller.FastifyInstance = fastify;
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new HomeController();
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new AccountController();
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new PartyController();
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new ApiController();
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new AdminController_Auth$Admin();
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// Websocket stuff
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const websocketServer = new WebSocketServer({
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port: Config.ports.ws
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}, () => {
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Console.printInfo(`WebsocketServer listening at ws://localhost:${Config.ports.ws}`);
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fastify.listen({ port: Config.ports.http, host: "0.0.0.0" }, (err, address) => {
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if (err) {
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Console.printError(`Error occured while spinning up fastify:\n${err}`);
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process.exit(1);
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}
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Console.printInfo(`Fastify listening at ${address.replace("0.0.0.0", "localhost")}`);
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Console.printInfo("MultiProbe is ready to go!");
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});
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});
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function sendToAllButSelf(user:RemoteUser, data:Buffer) {
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users.forEach(otherUser => {
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if (otherUser.id !== user.id && otherUser.currentURL === user.currentURL) {
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otherUser.send(data);
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}
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});
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}
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function sendToAll(user:RemoteUser, data:Buffer) {
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users.forEach(otherUser => {
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if (otherUser.currentURL === user.currentURL) {
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otherUser.send(data);
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}
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});
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}
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function sendToAllInGroup(user:RemoteUser, data:Buffer) {
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users.forEach(otherUser => {
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if (otherUser.groupId === user.groupId && otherUser.userId !== user.userId) {
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otherUser.send(data);
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}
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});
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}
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const afkInterval = setInterval(() => {
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users.forEach(otherUser => {
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if (Date.now() - otherUser.timeLastMovedCursor >= 30000 && !otherUser.isAfk) {
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otherUser.isAfk = true;
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const afkPacket = createWriter(Endian.LE, 6).writeByte(MessageType.HonkShoe).writeUInt(otherUser.id).writeBool(otherUser.isAfk).toBuffer();
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sendToAllButSelf(otherUser, afkPacket);
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}
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});
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}, 5000);
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async function updateConnectionMetrics() {
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onlineUsers.Value = users.length;
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let userCount = 0;
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const checkedUsers = new Array<string>();
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await users.forEach(user => {
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if (!checkedUsers.includes(user.username)) {
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userCount++;
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checkedUsers.push(user.username);
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}
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});
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onlineUsersUnique.Value = userCount;
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}
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websocketServer.on("connection", (socket) => {
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const myUUID = crypto.randomUUID();
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let user:RemoteUser;
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function closeOrError() {
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if (users.has(myUUID)) {
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users.remove(myUUID);
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const userLeftPacket = createWriter(Endian.LE, 5).writeByte(MessageType.ClientLeft).writeUInt(user.id).toBuffer();
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users.forEach(otherUser => otherUser.send(userLeftPacket));
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sendGroupUpdate(user);
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}
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updateConnectionMetrics();
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}
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async function sendGroupUpdate(sendUser:RemoteUser, groupSend = false) {
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if (!sendUser || sendUser.groupId === Number.MIN_VALUE) {
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return;
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}
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const usersInGroup = new FunkyArray<number, RemoteUser>();
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let totalUsernameLength = 0;
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await users.forEach(otherUser => {
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if (sendUser.groupId === otherUser.groupId && sendUser.userId !== otherUser.userId) {
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if (usersInGroup.has(otherUser.userId)) {
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totalUsernameLength += otherUser.username.length;
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}
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usersInGroup.set(otherUser.userId, otherUser);
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}
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if (!groupSend && sendUser.userId !== otherUser.userId) {
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sendGroupUpdate(otherUser, true);
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}
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});
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const writer = createWriter(Endian.LE)
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.writeByte(MessageType.GroupData)
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.writeShortString(sendUser.groupName)
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.writeUShort(usersInGroup.length);
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await usersInGroup.forEach(otherUser => {
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writer.writeShortString(otherUser.username).writeString(otherUser.rawURL);
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});
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const groupData = writer.toBuffer();
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sendUser.send(groupData);
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}
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socket.on("close", closeOrError);
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socket.on("error", closeOrError);
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socket.on("message", async (data) => {
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const reader = createReader(Endian.LE, data as Buffer);
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dataIn.add(reader.length);
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messagesIn.add(1);
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if (reader.length > 0 && reader.length < 1024) {
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switch (reader.readUByte()) {
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case MessageType.KeepAlive:
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{
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if (user !== undefined) {
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user.lastKeepAliveTime = Date.now();
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}
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break;
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}
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case MessageType.ClientDetails:
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{
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if (user !== undefined) {
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return;
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}
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const apiKey = reader.readShortString();
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const rawURL = reader.readString();
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const dbUser = await UserService.GetUserByAPIKey(apiKey);
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if (dbUser == null) {
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return;
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}
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const dbUserParty = await UserService.GetActiveParty(dbUser.Id);
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let dbParty: Party | null = null;
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if (dbUserParty) {
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dbParty = await PartyService.GetParty(dbUserParty.PartyId);
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}
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let page = rawURL.toLowerCase().replace(".htm", "").replace(".html", "");
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if (page === "index") {
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page = "";
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}
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let lengthOfUsernames = 0;
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const usersOnPage = new Array<RemoteUser>();
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await users.forEach(otherUser => {
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if (otherUser.currentURL === page) {
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usersOnPage.push(otherUser);
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lengthOfUsernames += otherUser.username.length + 1; // + 1 for length byte
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}
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});
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const usersToSend = createWriter(Endian.LE, 3 + (usersOnPage.length * 13) + lengthOfUsernames).writeByte(MessageType.Clients).writeUShort(usersOnPage.length);
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for (const otherUser of usersOnPage) {
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usersToSend.writeUInt(otherUser.id).writeShortString(otherUser.username).writeFloat(otherUser.cursorX).writeInt(otherUser.cursorY).writeBool(otherUser.isAfk);
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}
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if (dbParty) {
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user = users.set(myUUID, new RemoteUser(socket, dataOut, messagesOut, myUUID, dbUser.Username, page, rawURL, dbUser.Id, dbParty.Id, dbParty.Name));
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} else {
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user = users.set(myUUID, new RemoteUser(socket, dataOut, messagesOut, myUUID, dbUser.Username, page, rawURL, dbUser.Id, Number.MIN_VALUE, ""));
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}
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sendToAllButSelf(user, createWriter(Endian.LE, 6 + dbUser.Username.length).writeByte(MessageType.ClientJoined).writeUInt(user.id).writeShortString(dbUser.Username).toBuffer());
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user.send(usersToSend.toBuffer());
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sendGroupUpdate(user);
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updateConnectionMetrics();
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break;
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}
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case MessageType.CursorPos:
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{
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if (user === undefined) {
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return;
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}
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user.cursorX = reader.readFloat();
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user.cursorY = reader.readInt();
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sendToAllButSelf(user, createWriter(Endian.LE, 13).writeByte(MessageType.CursorPos).writeUInt(user.id).writeFloat(user.cursorX).writeInt(user.cursorY).toBuffer());
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user.timeLastMovedCursor = Date.now();
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if (user.isAfk) {
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user.isAfk = false;
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const afkPacket = createWriter(Endian.LE, 6).writeByte(MessageType.HonkShoe).writeUInt(user.id).writeBool(user.isAfk).toBuffer();
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sendToAllButSelf(user, afkPacket);
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}
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break;
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}
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case MessageType.Ping:
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{
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if (user === undefined) {
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return;
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}
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if ((Date.now() - user.lastPingReset) >= 1000) {
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user.allowedPings = 10;
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user.lastPingReset = Date.now();
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}
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if (user.allowedPings > 0) {
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user.allowedPings--;
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const cursorX = reader.readFloat();
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const cursorY = reader.readInt();
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const packet = createWriter(Endian.LE, 9).writeByte(MessageType.Ping).writeFloat(cursorX).writeInt(cursorY).toBuffer();
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sendToAll(user, packet);
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}
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break;
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}
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case MessageType.HonkShoe:
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{
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if (user === undefined) {
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return;
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}
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user.isAfk = reader.readBool();
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const afkPacket = createWriter(Endian.LE, 6).writeByte(MessageType.HonkShoe).writeUInt(user.id).writeBool(user.isAfk).toBuffer();
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sendToAllButSelf(user, afkPacket);
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break;
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}
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}
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}
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});
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});
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let isShuttingDown = false;
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function shutdown() {
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if (isShuttingDown) {
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return;
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}
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isShuttingDown = true;
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Console.printInfo("Shutting down...");
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websocketServer.close(async () => {
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await fastify.close();
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clearInterval(afkInterval);
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Console.cleanup();
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console.log("Goodbye!");
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});
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}
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process.on("SIGQUIT", shutdown);
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process.on("SIGINT", shutdown);
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//process.on("SIGUSR2", shutdown);
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