560 lines
17 KiB
TypeScript
560 lines
17 KiB
TypeScript
import { MainRouter } from "./routers/main-router";
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import * as fs from "node:fs";
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import { PackageJson } from "type-fest";
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import { Database } from "./database";
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import packageJSON from "../package.json";
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import { log } from "./log";
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import * as socketIO from "socket.io";
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import express, { Express } from "express";
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import { parse } from "ts-command-line-args";
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import https from "https";
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import http from "http";
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import { Router } from "./router";
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import { Socket } from "socket.io";
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import { MainSocketHandler } from "./socket-handlers/main-socket-handler";
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import { SocketHandler } from "./socket-handler";
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import { Settings } from "./settings";
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import checkVersion from "./check-version";
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import dayjs from "dayjs";
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import { R } from "redbean-node";
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import { genSecret, isDev } from "./util-common";
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import { generatePasswordHash } from "./password-hash";
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import { Bean } from "redbean-node/dist/bean";
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import { Arguments, Config, DockgeSocket } from "./util-server";
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import { DockerSocketHandler } from "./socket-handlers/docker-socket-handler";
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import expressStaticGzip from "express-static-gzip";
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import path from "path";
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import { TerminalSocketHandler } from "./socket-handlers/terminal-socket-handler";
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import { Stack } from "./stack";
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import { Cron } from "croner";
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import gracefulShutdown from "http-graceful-shutdown";
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import User from "./models/user";
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import childProcess from "child_process";
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export class DockgeServer {
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app : Express;
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httpServer : http.Server;
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packageJSON : PackageJson;
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io : socketIO.Server;
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config : Config;
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indexHTML : string = "";
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/**
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* List of express routers
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*/
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routerList : Router[] = [
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new MainRouter(),
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];
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/**
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* List of socket handlers
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*/
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socketHandlerList : SocketHandler[] = [
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new MainSocketHandler(),
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new DockerSocketHandler(),
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new TerminalSocketHandler(),
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];
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/**
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* Show Setup Page
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*/
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needSetup = false;
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jwtSecret? : string;
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stacksDir : string = "";
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/**
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*
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*/
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constructor() {
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// Catch unexpected errors here
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let unexpectedErrorHandler = (error : unknown) => {
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console.trace(error);
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console.error("If you keep encountering errors, please report to https://github.com/louislam/dockge");
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};
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process.addListener("unhandledRejection", unexpectedErrorHandler);
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process.addListener("uncaughtException", unexpectedErrorHandler);
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if (!process.env.NODE_ENV) {
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process.env.NODE_ENV = "production";
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}
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// Log NODE ENV
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log.info("server", "NODE_ENV: " + process.env.NODE_ENV);
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// Default stacks directory
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let defaultStacksDir;
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if (process.platform === "win32") {
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defaultStacksDir = "./stacks";
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} else {
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defaultStacksDir = "/opt/stacks";
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}
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// Define all possible arguments
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let args = parse<Arguments>({
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sslKey: {
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type: String,
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optional: true,
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},
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sslCert: {
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type: String,
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optional: true,
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},
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sslKeyPassphrase: {
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type: String,
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optional: true,
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},
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port: {
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type: Number,
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optional: true,
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},
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hostname: {
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type: String,
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optional: true,
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},
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dataDir: {
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type: String,
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optional: true,
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},
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stacksDir: {
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type: String,
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optional: true,
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}
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});
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this.config = args as Config;
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// Load from environment variables or default values if args are not set
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this.config.sslKey = args.sslKey || process.env.DOCKGE_SSL_KEY || undefined;
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this.config.sslCert = args.sslCert || process.env.DOCKGE_SSL_CERT || undefined;
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this.config.sslKeyPassphrase = args.sslKeyPassphrase || process.env.DOCKGE_SSL_KEY_PASSPHRASE || undefined;
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this.config.port = args.port || parseInt(process.env.DOCKGE_PORT) || 5001;
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this.config.hostname = args.hostname || process.env.DOCKGE_HOSTNAME || undefined;
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this.config.dataDir = args.dataDir || process.env.DOCKGE_DATA_DIR || "./data/";
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this.config.stacksDir = args.stacksDir || process.env.DOCKGE_STACKS_DIR || defaultStacksDir;
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this.stacksDir = this.config.stacksDir;
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log.debug("server", this.config);
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this.packageJSON = packageJSON as PackageJson;
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try {
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this.indexHTML = fs.readFileSync("./frontend-dist/index.html").toString();
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} catch (e) {
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// "dist/index.html" is not necessary for development
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if (process.env.NODE_ENV !== "development") {
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log.error("server", "Error: Cannot find 'frontend-dist/index.html', did you install correctly?");
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process.exit(1);
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}
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}
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// Create all the necessary directories
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this.initDataDir();
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// Create express
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this.app = express();
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// Create HTTP server
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if (this.config.sslKey && this.config.sslCert) {
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log.info("server", "Server Type: HTTPS");
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this.httpServer = https.createServer({
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key: fs.readFileSync(this.config.sslKey),
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cert: fs.readFileSync(this.config.sslCert),
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passphrase: this.config.sslKeyPassphrase,
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}, this.app);
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} else {
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log.info("server", "Server Type: HTTP");
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this.httpServer = http.createServer(this.app);
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}
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// Binding Routers
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for (const router of this.routerList) {
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this.app.use(router.create(this.app, this));
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}
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// Static files
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this.app.use("/", expressStaticGzip("frontend-dist", {
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enableBrotli: true,
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}));
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// Universal Route Handler, must be at the end of all express routes.
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this.app.get("*", async (_request, response) => {
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response.send(this.indexHTML);
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});
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// Allow all CORS origins in development
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let cors = undefined;
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if (isDev) {
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cors = {
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origin: "*",
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};
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}
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// Create Socket.io
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this.io = new socketIO.Server(this.httpServer, {
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cors,
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});
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this.io.on("connection", async (socket: Socket) => {
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log.info("server", "Socket connected!");
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this.sendInfo(socket, true);
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if (this.needSetup) {
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log.info("server", "Redirect to setup page");
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socket.emit("setup");
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}
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// Create socket handlers
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for (const socketHandler of this.socketHandlerList) {
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socketHandler.create(socket as DockgeSocket, this);
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}
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// ***************************
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// Better do anything after added all socket handlers here
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// ***************************
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log.debug("auth", "check auto login");
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if (await Settings.get("disableAuth")) {
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log.info("auth", "Disabled Auth: auto login to admin");
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this.afterLogin(socket as DockgeSocket, await R.findOne("user"));
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socket.emit("autoLogin");
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} else {
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log.debug("auth", "need auth");
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}
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});
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this.io.on("disconnect", () => {
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});
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}
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async afterLogin(socket : DockgeSocket, user : User) {
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socket.userID = user.id;
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socket.join(user.id.toString());
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this.sendInfo(socket);
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try {
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this.sendStackList();
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} catch (e) {
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log.error("server", e);
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}
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}
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/**
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*
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*/
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async serve() {
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// Connect to database
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try {
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await Database.init(this);
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} catch (e) {
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log.error("server", "Failed to prepare your database: " + e.message);
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process.exit(1);
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}
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// First time setup if needed
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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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log.info("server", "JWT secret is not found, generate one.");
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jwtSecretBean = await this.initJWTSecret();
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log.info("server", "Stored JWT secret into database");
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} else {
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log.debug("server", "Load JWT secret from database.");
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}
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this.jwtSecret = jwtSecretBean.value;
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const userCount = (await R.knex("user").count("id as count").first()).count;
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log.debug("server", "User count: " + userCount);
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// If there is no record in user table, it is a new Dockge instance, need to setup
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if (userCount == 0) {
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log.info("server", "No user, need setup");
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this.needSetup = true;
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}
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// Listen
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this.httpServer.listen(5001, this.config.hostname, () => {
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if (this.config.hostname) {
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log.info( "server", `Listening on ${this.config.hostname}:${this.config.port}`);
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} else {
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log.info("server", `Listening on ${this.config.port}`);
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}
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// Run every 5 seconds
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const job = Cron("*/2 * * * * *", {
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protect: true, // Enabled over-run protection.
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}, () => {
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log.debug("server", "Cron job running");
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this.sendStackList(true);
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});
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});
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gracefulShutdown(this.httpServer, {
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signals: "SIGINT SIGTERM",
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timeout: 30000, // timeout: 30 secs
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development: false, // not in dev mode
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forceExit: true, // triggers process.exit() at the end of shutdown process
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onShutdown: this.shutdownFunction, // shutdown function (async) - e.g. for cleanup DB, ...
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finally: this.finalFunction, // finally function (sync) - e.g. for logging
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});
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}
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/**
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* Emits the version information to the client.
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* @param socket Socket.io socket instance
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* @param hideVersion Should we hide the version information in the response?
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* @returns
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*/
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async sendInfo(socket : Socket, hideVersion = false) {
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let versionProperty;
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let latestVersionProperty;
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let isContainer;
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if (!hideVersion) {
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versionProperty = packageJSON.version;
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latestVersionProperty = checkVersion.latestVersion;
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isContainer = (process.env.DOCKGE_IS_CONTAINER === "1");
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}
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socket.emit("info", {
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version: versionProperty,
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latestVersion: latestVersionProperty,
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isContainer,
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primaryHostname: await Settings.get("primaryHostname"),
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//serverTimezone: await this.getTimezone(),
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//serverTimezoneOffset: this.getTimezoneOffset(),
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});
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}
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/**
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* Get the IP of the client connected to the socket
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* @param {Socket} socket Socket to query
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* @returns IP of client
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*/
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async getClientIP(socket : Socket) : Promise<string> {
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let clientIP = socket.client.conn.remoteAddress;
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if (clientIP === undefined) {
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clientIP = "";
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}
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if (await Settings.get("trustProxy")) {
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const forwardedFor = socket.client.conn.request.headers["x-forwarded-for"];
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if (typeof forwardedFor === "string") {
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return forwardedFor.split(",")[0].trim();
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} else if (typeof socket.client.conn.request.headers["x-real-ip"] === "string") {
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return socket.client.conn.request.headers["x-real-ip"];
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}
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}
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return clientIP.replace(/^::ffff:/, "");
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}
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/**
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* Attempt to get the current server timezone
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* If this fails, fall back to environment variables and then make a
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* guess.
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* @returns {Promise<string>} Current timezone
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*/
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async getTimezone() {
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// From process.env.TZ
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try {
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if (process.env.TZ) {
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this.checkTimezone(process.env.TZ);
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return process.env.TZ;
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}
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} catch (e) {
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log.warn("timezone", e.message + " in process.env.TZ");
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}
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const timezone = await Settings.get("serverTimezone");
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// From Settings
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try {
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log.debug("timezone", "Using timezone from settings: " + timezone);
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if (timezone) {
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this.checkTimezone(timezone);
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return timezone;
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}
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} catch (e) {
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log.warn("timezone", e.message + " in settings");
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}
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// Guess
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try {
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const guess = dayjs.tz.guess();
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log.debug("timezone", "Guessing timezone: " + guess);
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if (guess) {
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this.checkTimezone(guess);
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return guess;
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} else {
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return "UTC";
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}
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} catch (e) {
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// Guess failed, fall back to UTC
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log.debug("timezone", "Guessed an invalid timezone. Use UTC as fallback");
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return "UTC";
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}
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}
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/**
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* Get the current offset
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* @returns {string} Time offset
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*/
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getTimezoneOffset() {
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return dayjs().format("Z");
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}
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/**
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* Throw an error if the timezone is invalid
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* @param {string} timezone Timezone to test
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* @returns {void}
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* @throws The timezone is invalid
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*/
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checkTimezone(timezone : string) {
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try {
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dayjs.utc("2013-11-18 11:55").tz(timezone).format();
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} catch (e) {
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throw new Error("Invalid timezone:" + timezone);
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}
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}
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/**
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* Initialize the data directory
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*/
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initDataDir() {
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if (! fs.existsSync(this.config.dataDir)) {
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fs.mkdirSync(this.config.dataDir, { recursive: true });
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}
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// Check if a directory
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if (!fs.lstatSync(this.config.dataDir).isDirectory()) {
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throw new Error(`Fatal error: ${this.config.dataDir} is not a directory`);
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}
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// Create data/stacks directory
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if (!fs.existsSync(this.stacksDir)) {
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fs.mkdirSync(this.stacksDir, { recursive: true });
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}
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log.info("server", `Data Dir: ${this.config.dataDir}`);
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}
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/**
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* Init or reset JWT secret
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* @returns JWT secret
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*/
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async initJWTSecret() : Promise<Bean> {
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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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jwtSecretBean = R.dispense("setting");
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jwtSecretBean.key = "jwtSecret";
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}
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jwtSecretBean.value = generatePasswordHash(genSecret());
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await R.store(jwtSecretBean);
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return jwtSecretBean;
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}
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sendStackList(useCache = false) {
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let roomList = this.io.sockets.adapter.rooms.keys();
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let map : Map<string, object> | undefined;
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for (let room of roomList) {
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// Check if the room is a number (user id)
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if (Number(room)) {
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// Get the list only if there is a room
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if (!map) {
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map = new Map();
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let stackList = Stack.getStackList(this, useCache);
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for (let [ stackName, stack ] of stackList) {
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map.set(stackName, stack.toSimpleJSON());
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}
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}
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log.debug("server", "Send stack list to room " + room);
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this.io.to(room).emit("stackList", {
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ok: true,
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stackList: Object.fromEntries(map),
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});
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}
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}
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}
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sendStackStatusList() {
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let statusList = Stack.getStatusList();
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let roomList = this.io.sockets.adapter.rooms.keys();
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for (let room of roomList) {
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// Check if the room is a number (user id)
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if (Number(room)) {
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log.debug("server", "Send stack status list to room " + room);
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this.io.to(room).emit("stackStatusList", {
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ok: true,
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stackStatusList: Object.fromEntries(statusList),
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});
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} else {
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log.debug("server", "Skip sending stack status list to room " + room);
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}
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}
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}
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getDockerNetworkList() : string[] {
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let res = childProcess.spawnSync("docker", [ "network", "ls", "--format", "{{.Name}}" ]);
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let list = res.stdout.toString().split("\n");
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// Remove empty string item
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list = list.filter((item) => {
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return item !== "";
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}).sort((a, b) => {
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return a.localeCompare(b);
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});
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return list;
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}
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get stackDirFullPath() {
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return path.resolve(this.stacksDir);
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}
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/**
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* Shutdown the application
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* Stops all monitors and closes the database connection.
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* @param signal The signal that triggered this function to be called.
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*/
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async shutdownFunction(signal : string | undefined) {
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log.info("server", "Shutdown requested");
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log.info("server", "Called signal: " + signal);
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// TODO: Close all terminals?
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await Database.close();
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Settings.stopCacheCleaner();
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}
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/**
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* Final function called before application exits
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*/
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finalFunction() {
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log.info("server", "Graceful shutdown successful!");
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}
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}
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