mirror of
https://github.com/louislam/uptime-kuma.git
synced 2024-11-24 07:14:04 +00:00
738 lines
19 KiB
JavaScript
738 lines
19 KiB
JavaScript
console.log("Welcome to Uptime Kuma ")
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console.log("Importing libraries")
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const express = require('express');
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const http = require('http');
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const { Server } = require("socket.io");
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const dayjs = require("dayjs");
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const {R} = require("redbean-node");
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const passwordHash = require('./password-hash');
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const jwt = require('jsonwebtoken');
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const Monitor = require("./model/monitor");
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const fs = require("fs");
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const {getSettings} = require("./util-server");
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const {Notification} = require("./notification")
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const gracefulShutdown = require('http-graceful-shutdown');
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const {sleep} = require("./util");
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const args = require('args-parser')(process.argv);
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const version = require('../package.json').version;
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const hostname = args.host || "0.0.0.0"
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const port = args.port || 3001
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console.info("Version: " + version)
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console.log("Creating express and socket.io instance")
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const app = express();
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const server = http.createServer(app);
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const io = new Server(server);
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app.use(express.json())
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let totalClient = 0;
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let jwtSecret = null;
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let monitorList = {};
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let needSetup = false;
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(async () => {
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await initDatabase();
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app.use('/', express.static("dist"));
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app.get('*', function(request, response, next) {
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response.sendFile(process.cwd() + '/dist/index.html');
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});
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io.on('connection', async (socket) => {
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socket.emit("info", {
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version,
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})
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console.log('a user connected');
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totalClient++;
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if (needSetup) {
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console.log("Redirect to setup page")
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socket.emit("setup")
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}
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socket.on('disconnect', () => {
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console.log('user disconnected');
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totalClient--;
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});
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// Public API
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socket.on("loginByToken", async (token, callback) => {
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try {
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let decoded = jwt.verify(token, jwtSecret);
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console.log("Username from JWT: " + decoded.username)
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let user = await R.findOne("user", " username = ? AND active = 1 ", [
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decoded.username
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])
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if (user) {
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await afterLogin(socket, user)
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callback({
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ok: true,
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})
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} else {
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callback({
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ok: false,
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msg: "The user is inactive or deleted."
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})
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}
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} catch (error) {
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callback({
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ok: false,
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msg: "Invalid token."
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})
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}
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});
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socket.on("login", async (data, callback) => {
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console.log("Login")
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let user = await R.findOne("user", " username = ? AND active = 1 ", [
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data.username
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])
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if (user && passwordHash.verify(data.password, user.password)) {
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// Upgrade the hash to bcrypt
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if (passwordHash.needRehash(user.password)) {
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await R.exec("UPDATE `user` SET password = ? WHERE id = ? ", [
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passwordHash.generate(data.password),
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user.id
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]);
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}
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await afterLogin(socket, user)
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callback({
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ok: true,
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token: jwt.sign({
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username: data.username
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}, jwtSecret)
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})
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} else {
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callback({
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ok: false,
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msg: "Incorrect username or password."
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})
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}
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});
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socket.on("logout", async (callback) => {
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socket.leave(socket.userID)
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socket.userID = null;
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callback();
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});
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socket.on("needSetup", async (callback) => {
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callback(needSetup);
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});
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socket.on("setup", async (username, password, callback) => {
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try {
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if ((await R.count("user")) !== 0) {
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throw new Error("Uptime Kuma has been setup. If you want to setup again, please delete the database.")
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}
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let user = R.dispense("user")
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user.username = username;
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user.password = passwordHash.generate(password)
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await R.store(user)
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needSetup = false;
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callback({
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ok: true,
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msg: "Added Successfully."
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});
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} catch (e) {
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callback({
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ok: false,
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msg: e.message
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});
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}
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});
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// Auth Only API
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socket.on("add", async (monitor, callback) => {
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try {
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checkLogin(socket)
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let bean = R.dispense("monitor")
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let notificationIDList = monitor.notificationIDList;
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delete monitor.notificationIDList;
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bean.import(monitor)
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bean.user_id = socket.userID
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await R.store(bean)
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await updateMonitorNotification(bean.id, notificationIDList)
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await startMonitor(socket.userID, bean.id);
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await sendMonitorList(socket);
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callback({
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ok: true,
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msg: "Added Successfully.",
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monitorID: bean.id
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});
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} catch (e) {
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callback({
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ok: false,
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msg: e.message
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});
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}
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});
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socket.on("editMonitor", async (monitor, callback) => {
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try {
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checkLogin(socket)
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let bean = await R.findOne("monitor", " id = ? ", [ monitor.id ])
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if (bean.user_id !== socket.userID) {
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throw new Error("Permission denied.")
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}
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bean.name = monitor.name
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bean.type = monitor.type
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bean.url = monitor.url
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bean.interval = monitor.interval
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bean.hostname = monitor.hostname;
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bean.port = monitor.port;
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bean.keyword = monitor.keyword;
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await R.store(bean)
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await updateMonitorNotification(bean.id, monitor.notificationIDList)
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if (bean.active) {
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await restartMonitor(socket.userID, bean.id)
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}
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await sendMonitorList(socket);
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callback({
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ok: true,
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msg: "Saved.",
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monitorID: bean.id
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});
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} catch (e) {
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console.error(e)
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callback({
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ok: false,
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msg: e.message
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});
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}
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});
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socket.on("getMonitor", async (monitorID, callback) => {
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try {
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checkLogin(socket)
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console.log(`Get Monitor: ${monitorID} User ID: ${socket.userID}`)
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let bean = await R.findOne("monitor", " id = ? AND user_id = ? ", [
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monitorID,
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socket.userID,
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])
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callback({
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ok: true,
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monitor: await bean.toJSON(),
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});
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} catch (e) {
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callback({
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ok: false,
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msg: e.message
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});
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}
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});
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// Start or Resume the monitor
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socket.on("resumeMonitor", async (monitorID, callback) => {
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try {
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checkLogin(socket)
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await startMonitor(socket.userID, monitorID);
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await sendMonitorList(socket);
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callback({
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ok: true,
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msg: "Resumed Successfully."
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});
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} catch (e) {
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callback({
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ok: false,
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msg: e.message
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});
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}
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});
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socket.on("pauseMonitor", async (monitorID, callback) => {
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try {
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checkLogin(socket)
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await pauseMonitor(socket.userID, monitorID)
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await sendMonitorList(socket);
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callback({
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ok: true,
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msg: "Paused Successfully."
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});
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} catch (e) {
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callback({
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ok: false,
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msg: e.message
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});
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}
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});
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socket.on("deleteMonitor", async (monitorID, callback) => {
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try {
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checkLogin(socket)
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console.log(`Delete Monitor: ${monitorID} User ID: ${socket.userID}`)
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if (monitorID in monitorList) {
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monitorList[monitorID].stop();
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delete monitorList[monitorID]
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}
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await R.exec("DELETE FROM monitor WHERE id = ? AND user_id = ? ", [
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monitorID,
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socket.userID
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]);
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callback({
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ok: true,
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msg: "Deleted Successfully."
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});
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await sendMonitorList(socket);
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} catch (e) {
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callback({
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ok: false,
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msg: e.message
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});
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}
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});
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socket.on("changePassword", async (password, callback) => {
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try {
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checkLogin(socket)
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if (! password.currentPassword) {
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throw new Error("Invalid new password")
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}
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let user = await R.findOne("user", " id = ? AND active = 1 ", [
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socket.userID
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])
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if (user && passwordHash.verify(password.currentPassword, user.password)) {
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await R.exec("UPDATE `user` SET password = ? WHERE id = ? ", [
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passwordHash.generate(password.newPassword),
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socket.userID
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]);
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callback({
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ok: true,
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msg: "Password has been updated successfully."
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})
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} else {
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throw new Error("Incorrect current password")
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}
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} catch (e) {
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callback({
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ok: false,
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msg: e.message
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});
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}
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});
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socket.on("getSettings", async (type, callback) => {
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try {
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checkLogin(socket)
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callback({
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ok: true,
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data: await getSettings(type),
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});
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} catch (e) {
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callback({
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ok: false,
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msg: e.message
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});
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}
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});
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// Add or Edit
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socket.on("addNotification", async (notification, notificationID, callback) => {
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try {
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checkLogin(socket)
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await Notification.save(notification, notificationID, socket.userID)
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await sendNotificationList(socket)
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callback({
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ok: true,
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msg: "Saved",
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});
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} catch (e) {
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callback({
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ok: false,
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msg: e.message
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});
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}
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});
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socket.on("deleteNotification", async (notificationID, callback) => {
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try {
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checkLogin(socket)
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await Notification.delete(notificationID, socket.userID)
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await sendNotificationList(socket)
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callback({
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ok: true,
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msg: "Deleted",
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});
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} catch (e) {
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callback({
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ok: false,
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msg: e.message
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});
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}
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});
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socket.on("testNotification", async (notification, callback) => {
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try {
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checkLogin(socket)
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await Notification.send(notification, notification.name + " Testing")
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callback({
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ok: true,
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msg: "Sent Successfully"
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});
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} catch (e) {
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callback({
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ok: false,
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msg: e.message
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});
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}
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});
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});
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server.listen(port, hostname, () => {
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console.log(`Listening on ${hostname}:${port}`);
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startMonitors();
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});
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})();
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async function updateMonitorNotification(monitorID, notificationIDList) {
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R.exec("DELETE FROM monitor_notification WHERE monitor_id = ? ", [
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monitorID
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])
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for (let notificationID in notificationIDList) {
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if (notificationIDList[notificationID]) {
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let relation = R.dispense("monitor_notification");
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relation.monitor_id = monitorID;
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relation.notification_id = notificationID;
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await R.store(relation)
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}
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}
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}
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async function checkOwner(userID, monitorID) {
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let row = await R.getRow("SELECT id FROM monitor WHERE id = ? AND user_id = ? ", [
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monitorID,
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userID,
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])
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if (! row) {
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throw new Error("You do not own this monitor.");
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}
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}
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async function sendMonitorList(socket) {
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let list = await getMonitorJSONList(socket.userID);
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io.to(socket.userID).emit("monitorList", list)
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return list;
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}
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async function sendNotificationList(socket) {
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let result = [];
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let list = await R.find("notification", " user_id = ? ", [
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socket.userID
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]);
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for (let bean of list) {
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result.push(bean.export())
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}
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io.to(socket.userID).emit("notificationList", result)
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return list;
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}
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async function afterLogin(socket, user) {
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socket.userID = user.id;
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socket.join(user.id)
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let monitorList = await sendMonitorList(socket)
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for (let monitorID in monitorList) {
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await sendHeartbeatList(socket, monitorID);
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await sendImportantHeartbeatList(socket, monitorID);
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await Monitor.sendStats(io, monitorID, user.id)
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}
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await sendNotificationList(socket)
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}
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async function getMonitorJSONList(userID) {
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let result = {};
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let monitorList = await R.find("monitor", " user_id = ? ", [
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userID
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])
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for (let monitor of monitorList) {
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result[monitor.id] = await monitor.toJSON();
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}
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return result;
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}
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function checkLogin(socket) {
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if (! socket.userID) {
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throw new Error("You are not logged in.");
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}
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}
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async function initDatabase() {
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const path = './data/kuma.db';
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if (! fs.existsSync(path)) {
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console.log("Copying Database")
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fs.copyFileSync("./db/kuma.db", path);
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}
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console.log("Connecting to Database")
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R.setup('sqlite', {
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filename: path
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});
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R.freeze(true)
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await R.autoloadModels("./server/model");
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let jwtSecretBean = await R.findOne("setting", " `key` = ? ", [
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"jwtSecret"
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]);
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if (! jwtSecretBean) {
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console.log("JWT secret is not found, generate one.")
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jwtSecretBean = R.dispense("setting")
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jwtSecretBean.key = "jwtSecret"
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jwtSecretBean.value = passwordHash.generate(dayjs() + "")
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await R.store(jwtSecretBean)
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} else {
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console.log("Load JWT secret from database.")
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}
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if ((await R.count("user")) === 0) {
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console.log("No user, need setup")
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needSetup = true;
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}
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jwtSecret = jwtSecretBean.value;
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}
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async function startMonitor(userID, monitorID) {
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await checkOwner(userID, monitorID)
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console.log(`Resume Monitor: ${monitorID} User ID: ${userID}`)
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await R.exec("UPDATE monitor SET active = 1 WHERE id = ? AND user_id = ? ", [
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monitorID,
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userID
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]);
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let monitor = await R.findOne("monitor", " id = ? ", [
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monitorID
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])
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if (monitor.id in monitorList) {
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monitorList[monitor.id].stop();
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}
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monitorList[monitor.id] = monitor;
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monitor.start(io)
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}
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async function restartMonitor(userID, monitorID) {
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return await startMonitor(userID, monitorID)
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}
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async function pauseMonitor(userID, monitorID) {
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await checkOwner(userID, monitorID)
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console.log(`Pause Monitor: ${monitorID} User ID: ${userID}`)
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await R.exec("UPDATE monitor SET active = 0 WHERE id = ? AND user_id = ? ", [
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monitorID,
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userID
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]);
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|
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if (monitorID in monitorList) {
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monitorList[monitorID].stop();
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}
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}
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|
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/**
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* Resume active monitors
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*/
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async function startMonitors() {
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let list = await R.find("monitor", " active = 1 ")
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|
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for (let monitor of list) {
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monitor.start(io)
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monitorList[monitor.id] = monitor;
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}
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}
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|
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/**
|
|
* Send Heartbeat History list to socket
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|
*/
|
|
async function sendHeartbeatList(socket, monitorID) {
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let list = await R.find("heartbeat", `
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monitor_id = ?
|
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ORDER BY time DESC
|
|
LIMIT 100
|
|
`, [
|
|
monitorID
|
|
])
|
|
|
|
let result = [];
|
|
|
|
for (let bean of list) {
|
|
result.unshift(bean.toJSON())
|
|
}
|
|
|
|
socket.emit("heartbeatList", monitorID, result)
|
|
}
|
|
|
|
async function sendImportantHeartbeatList(socket, monitorID) {
|
|
let list = await R.find("heartbeat", `
|
|
monitor_id = ?
|
|
AND important = 1
|
|
ORDER BY time DESC
|
|
LIMIT 500
|
|
`, [
|
|
monitorID
|
|
])
|
|
|
|
socket.emit("importantHeartbeatList", monitorID, list)
|
|
}
|
|
|
|
|
|
|
|
const startGracefulShutdown = async () => {
|
|
console.log('Shutdown requested');
|
|
|
|
|
|
await (new Promise((resolve) => {
|
|
server.close(async function () {
|
|
console.log('Stopped Express.');
|
|
process.exit(0)
|
|
setTimeout(async () =>{
|
|
await R.close();
|
|
console.log("Stopped DB")
|
|
|
|
resolve();
|
|
}, 5000)
|
|
|
|
});
|
|
}));
|
|
|
|
|
|
}
|
|
|
|
let noReject = true;
|
|
process.on('unhandledRejection', (reason, p) => {
|
|
noReject = false;
|
|
});
|
|
|
|
async function shutdownFunction(signal) {
|
|
console.log('Called signal: ' + signal);
|
|
|
|
console.log("Stopping all monitors")
|
|
for (let id in monitorList) {
|
|
let monitor = monitorList[id]
|
|
monitor.stop()
|
|
}
|
|
await sleep(2000)
|
|
|
|
console.log("Closing DB")
|
|
|
|
// Special handle, because tarn.js throw a promise reject that cannot be caught
|
|
while (true) {
|
|
noReject = true;
|
|
await R.close()
|
|
await sleep(2000)
|
|
|
|
if (noReject) {
|
|
break;
|
|
} else {
|
|
console.log("Waiting...")
|
|
}
|
|
}
|
|
|
|
console.log("OK")
|
|
}
|
|
|
|
function finalFunction() {
|
|
console.log('Graceful Shutdown')
|
|
}
|
|
|
|
gracefulShutdown(server, {
|
|
signals: 'SIGINT SIGTERM',
|
|
timeout: 30000, // timeout: 30 secs
|
|
development: false, // not in dev mode
|
|
forceExit: true, // triggers process.exit() at the end of shutdown process
|
|
onShutdown: shutdownFunction, // shutdown function (async) - e.g. for cleanup DB, ...
|
|
finally: finalFunction // finally function (sync) - e.g. for logging
|
|
});
|