81 lines
3.0 KiB
JavaScript
81 lines
3.0 KiB
JavaScript
import express from "express";
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import RateLimit from "express-rate-limit";
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import {fileURLToPath} from "url";
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import path, {dirname} from "path";
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import http from "http";
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export default class PairDropServer {
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constructor(conf) {
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const app = express();
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if (conf.rateLimit) {
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const limiter = RateLimit({
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windowMs: 5 * 60 * 1000, // 5 minutes
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max: 1000, // Limit each IP to 1000 requests per `window` (here, per 5 minutes)
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message: 'Too many requests from this IP Address, please try again after 5 minutes.',
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standardHeaders: true, // Return rate limit info in the `RateLimit-*` headers
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legacyHeaders: false, // Disable the `X-RateLimit-*` headers
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})
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app.use(limiter);
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// ensure correct client ip and not the ip of the reverse proxy is used for rate limiting
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// see https://express-rate-limit.mintlify.app/guides/troubleshooting-proxy-issues
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app.set('trust proxy', conf.rateLimit);
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if (!conf.debugMode) {
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console.log("Use DEBUG_MODE=true to find correct number for RATE_LIMIT.");
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}
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}
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const __filename = fileURLToPath(import.meta.url);
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const __dirname = dirname(__filename);
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const publicPathAbs = path.join(__dirname, '../public');
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app.use(express.static(publicPathAbs));
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if (conf.debugMode && conf.rateLimit) {
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console.debug("\n");
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console.debug("----DEBUG RATE_LIMIT----")
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console.debug("To find out the correct value for RATE_LIMIT go to '/ip' and ensure the returned IP-address is the IP-address of your client.")
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console.debug("See https://github.com/express-rate-limit/express-rate-limit#troubleshooting-proxy-issues for more info")
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app.get('/ip', (req, res) => {
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res.send(req.ip);
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})
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}
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// By default, clients connecting to your instance use the signaling server of your instance to connect to other devices.
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// By using `WS_SERVER`, you can host an instance that uses another signaling server.
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app.get('/config', (req, res) => {
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res.send({
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signalingServer: conf.signalingServer,
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buttons: conf.buttons
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});
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});
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app.use((req, res) => {
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res.redirect(301, '/');
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});
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app.get('/', (req, res) => {
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res.sendFile('index.html');
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console.log(`Serving client files from:\n${publicPathAbs}`)
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});
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const hostname = conf.localhostOnly ? '127.0.0.1' : null;
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const server = http.createServer(app);
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server.listen(conf.port, hostname);
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server.on('error', (err) => {
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if (err.code === 'EADDRINUSE') {
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console.error(err);
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console.info("Error EADDRINUSE received, exiting process without restarting process...");
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process.exit(1)
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}
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});
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this.server = server
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}
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} |