Tarzan -enlace De: Descarga Normal-

// ---- Route: GET /download/:fileId ---- router.get('/download/:fileId', downloadLimiter, async (req, res) => const fileId = req.params; const token = req.query.token;

const router = express.Router();

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' ); Tarzan -enlace de descarga normal-

if (range) // Example: "bytes=0-1023" const [startStr, endStr] = range.replace(/bytes=/, '').split('-'); const start = parseInt(startStr, 10); const end = endStr ? parseInt(endStr, 10) : total - 1; const chunkSize = end - start + 1;

// 1️⃣ Verify token (if you require signed URLs) if (process.env.REQUIRE_SIGNED_URLS === 'true') tokenFileId !== fileId) return res.status(403).json( error: 'Invalid or expired token.' ); // ---- Route: GET /download/:fileId ---- router

res.writeHead(206, 'Content-Range': `bytes $start-$end/$total`, 'Accept-Ranges': 'bytes', 'Content-Length': chunkSize, 'Content-Type': 'application/octet-stream', 'Content-Disposition': `attachment; filename="$path.basename(filePath)"` );

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

const stream = fs.createReadStream(filePath); stream.pipe(res);