Fixed import.

src/node/db/DB.ts

@@ -24,7 +24,7 @@
 const ueberDB = require('ueberdb2');
 const settings = require('../utils/Settings');
 const log4js = require('log4js');
-const stats = require('../stats');
+import stats from '../stats';
 
 const logger = log4js.getLogger('ueberDB');
 

src/node/handler/PadMessageHandler.js

@@ -35,7 +35,7 @@ const log4js = require('log4js');
 const messageLogger = log4js.getLogger('message');
 const accessLogger = log4js.getLogger('access');
 const hooks = require('../../static/js/pluginfw/hooks.js');
-const stats = require('../stats');
+import stats from '../stats'
 const assert = require('assert').strict;
 const {RateLimiterMemory} = require('rate-limiter-flexible');
 const webaccess = require('../hooks/express/webaccess');

src/node/handler/SocketIORouter.js

@@ -22,7 +22,7 @@
 
 const log4js = require('log4js');
 const settings = require('../utils/Settings');
-const stats = require('../stats');
+import stats from '../stats'
 
 const logger = log4js.getLogger('socket.io');
 

src/node/hooks/express.ts

@@ -1,26 +1,27 @@
 'use strict';
 
 import {Socket} from "node:net";
-import {MapArrayType} from "../types/MapType";
+import type {MapArrayType} from "../types/MapType";
 
-const _ = require('underscore');
-const cookieParser = require('cookie-parser');
-const events = require('events');
-const express = require('express');
-const expressSession = require('express-session');
-const fs = require('fs');
+import _ from 'underscore';
+// @ts-ignore
+import cookieParser from 'cookie-parser';
+import events from 'events';
+import express from 'express';
+// @ts-ignore
+import expressSession from 'express-session';
+import fs from 'fs';
 const hooks = require('../../static/js/pluginfw/hooks');
-const log4js = require('log4js');
+import log4js from 'log4js';
 const SessionStore = require('../db/SessionStore');
 const settings = require('../utils/Settings');
-const stats = require('../stats');
-const util = require('util');
+import stats from '../stats';
+import util from 'util';
 const webaccess = require('./express/webaccess');
 
 import SecretRotator from '../security/SecretRotator';
 
-// TODO once we have ESM we can use the type of the class
-let secretRotator: any|null = null;
+let secretRotator: SecretRotator|null = null;
 const logger = log4js.getLogger('http');
 let serverName:string;
 let sessionStore: { shutdown: () => void; } | null;
@@ -126,7 +127,7 @@ exports.restartServer = async () => {
     exports.server = http.createServer(app);
   }
 
-  app.use((req:any, res:any, next:Function) => {
+  app.use((req, res, next) => {
     // res.header("X-Frame-Options", "deny"); // breaks embedded pads
     if (settings.ssl) {
       // we use SSL
@@ -165,10 +166,10 @@ exports.restartServer = async () => {
   }
 
   // Measure response time
-  app.use((req:any, res:any, next:Function) => {
+  app.use((req, res, next) => {
     const stopWatch = stats.timer('httpRequests').start();
     const sendFn = res.send.bind(res);
-    res.send = (...args: any) => { stopWatch.end(); sendFn(...args); };
+    res.send = (...args) => {   stopWatch.end(); return sendFn(...args); };
     next();
   });
 
@@ -178,7 +179,7 @@ exports.restartServer = async () => {
   // anyway.
   if (!(settings.loglevel === 'WARN' && settings.loglevel === 'ERROR')) {
     app.use(log4js.connectLogger(logger, {
-      level: log4js.levels.DEBUG,
+      level: log4js.levels.DEBUG.levelStr,
       format: ':status, :method :url',
     }));
   }

src/node/hooks/express/errorhandling.ts

@@ -3,7 +3,7 @@
 import {ArgsExpressType} from "../../types/ArgsExpressType";
 import {ErrorCaused} from "../../types/ErrorCaused";
 
-const stats = require('../../stats');
+import stats from '../../stats';
 
 exports.expressCreateServer = (hook_name:string, args: ArgsExpressType, cb:Function) => {
   exports.app = args.app;

src/node/hooks/i18n.ts

@@ -1,6 +1,6 @@
 'use strict';
 
-import {MapArrayType, MapType} from "../types/MapType";
+import type {MapArrayType} from "../types/MapType";
 import {I18nPluginDefs} from "../types/I18nPluginDefs";
 
 const languages = require('languages4translatewiki');

src/node/security/SecretRotator.ts

@@ -64,7 +64,7 @@ const intervalStart = (t:number, interval:number) => t - mod(t, interval);
  * from a long-lived secret stored in the database (generated if missing).
  */
 export class SecretRotator {
-  private readonly secrets: string[];
+  readonly secrets: string[];
   private readonly _dbPrefix
   private readonly _interval
   private readonly _legacyStaticSecret

src/node/server.ts

@@ -55,7 +55,7 @@ const pluginDefs = require('../static/js/pluginfw/plugin_defs');
 const plugins = require('../static/js/pluginfw/plugins');
 const installer = require('../static/js/pluginfw/installer');
 const {Gate} = require('./utils/promises');
-import * as stats from './stats';
+import stats from './stats';
 
 const logger = log4js.getLogger('server');
 
@@ -107,7 +107,9 @@ exports.start = async () => {
     // Check if Etherpad version is up-to-date
     UpdateCheck.check();
 
+    // @ts-ignore
     stats.gauge('memoryUsage', () => process.memoryUsage().rss);
+    // @ts-ignore
     stats.gauge('memoryUsageHeap', () => process.memoryUsage().heapUsed);
 
     process.on('uncaughtException', (err: ErrorCaused) => {

src/node/stats.ts

@@ -3,8 +3,8 @@
 // @ts-ignore
 import measured from 'measured-core';
 
-module.exports = measured.createCollection();
+export default measured.createCollection();
 
-module.exports.shutdown = async (hookName: string, context:any) => {
+export const shutdown = async (hookName: string, context:any) => {
   module.exports.end();
 };

src/package-lock.json

@@ -512,6 +512,12 @@
         "minipass": "^4.0.0"
       }
     },
+    "@types/underscore": {
+      "version": "1.11.15",
+      "resolved": "https://registry.npmjs.org/@types/underscore/-/underscore-1.11.15.tgz",
+      "integrity": "sha512-HP38xE+GuWGlbSRq9WrZkousaQ7dragtZCruBVMi0oX1migFZavZ3OROKHSkNp/9ouq82zrWtZpg18jFnVN96g==",
+      "dev": true
+    },
     "@types/unist": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/@types/unist/-/unist-3.0.0.tgz",

src/package.json

@@ -80,8 +80,8 @@
   },
   "devDependencies": {
     "@types/async": "^3.2.24",
-    "typescript": "^5.3.3",
     "@types/node": "^20.11.5",
+    "@types/underscore": "^1.11.15",
     "eslint": "^8.56.0",
     "eslint-config-etherpad": "^3.0.22",
     "etherpad-cli-client": "^2.0.2",
@@ -93,7 +93,8 @@
     "set-cookie-parser": "^2.6.0",
     "sinon": "^17.0.1",
     "split-grid": "^1.0.11",
-    "supertest": "^6.3.4"
+    "supertest": "^6.3.4",
+    "typescript": "^5.3.3"
   },
   "engines": {
     "node": ">=18.18.2",