Modifier la route de téléchargement de vidéo pour gérer le streaming avec prise en charge des plages de fichiers

package-lock.json

@@ -14,6 +14,7 @@
         "multer": "^1.4.5-lts.1",
         "mysql2": "^3.11.3",
         "pg": "^8.13.0",
+        "range-parser": "^1.2.1",
         "sharp": "^0.33.5",
         "swagger-jsdoc": "^6.2.8",
         "swagger-ui-express": "^5.0.1"

package.json

@@ -16,6 +16,7 @@
     "multer": "^1.4.5-lts.1",
     "mysql2": "^3.11.3",
     "pg": "^8.13.0",
+    "range-parser": "^1.2.1",
     "sharp": "^0.33.5",
     "swagger-jsdoc": "^6.2.8",
     "swagger-ui-express": "^5.0.1"

routes/videoRoutes.js

@@ -2,6 +2,7 @@ const express = require('express');
 const router = express.Router();
 const db = require('../db');
 const fs = require('fs');
+const rangeParser = require('range-parser');
 const path = require('path');
 const serverError = require('../utils/serverError');
 const videoManager = require('../src/video/videoManager');
@@ -270,14 +271,32 @@ router.get('/videos/file/:video_id', (req, res) => {
            return res.status(400).json({ error: 'Video not yet produced' });
        }
        const videoPath = video.video_file;
-       console.log('Video path:', videoPath);
-       fs.access(videoPath, fs.constants.F_OK, (err) => {
-           if (err) {
-               console.error('Video not found:', err);
-               return res.status(404).json({ error: 'Video not found' });
-           }
-           res.download(videoPath);
-       });
+       const stat = fs.statSync(videoPath);
+       const fileSize = stat.size;
+       const range = req.headers.range;
+
+       if (range) {
+           const parts = rangeParser(fileSize, range);
+           const start = parts[0].start;
+           const end = parts[0].end;
+           const chunksize = (end - start) + 1;
+           const file = fs.createReadStream(videoPath, { start, end });
+           const head = {
+               'Content-Range': `bytes ${start}-${end}/${fileSize}`,
+               'Accept-Ranges': 'bytes',
+               'Content-Length': chunksize,
+               'Content-Type': 'video/mp4',
+           };
+           res.writeHead(206, head);
+           file.pipe(res);
+       } else {
+           const head = {
+               'Content-Length': fileSize,
+               'Content-Type': 'video/mp4',
+           };
+           res.writeHead(200, head);
+           fs.createReadStream(videoPath).pipe(res);
+       }
    });
 });