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const app = express(); app.use('/', downloadRouter);

const PORT = process.env.PORT || 3000; app.listen(PORT, () => console.log(`🚀 Server listening on $PORT`)); Tarzan -enlace de descarga normal-

// ---- Helper: validate token ---- function validateToken(token) try const decoded = Buffer.from(token, 'base64url').toString('utf8'); const [fileId, expires, signature] = decoded.split(':'); if (Date.now() / 1000 > Number(expires)) return null; // expired const app = express(); app

const stream = fs.createReadStream(filePath, start, end ); stream.pipe(res); else // Full download res.writeHead(200, 'Content-Length': total, 'Content-Type': 'application/octet-stream', 'Content-Disposition': `attachment; filename="$path.basename(filePath)"`, 'Accept-Ranges': 'bytes', 'Cache-Control': 'no-store' ); const app = express()