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server/routes/download.js

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+/*
+  This file is part of Freedom Loader.
+
+  Copyright (C) 2025 MasterAcnolo
+
+  Freedom Loader is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License.
+
+  Freedom Loader is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+  See the GNU General Public License for more details.
+*/
+const { app } = require("electron");
+const express = require("express");
+const router = express.Router();
+const { execFile } = require("child_process");
+const path = require("path");
+const fs = require("fs");
+const { Notification } = require("electron");
+const logger = require("../logger").logger;
+const userYtDlp = path.join(app.getPath("userData"), "yt-dlp.exe");
+
+// Path vers yt-dlp
+const ytDlpPath = path.join(process.resourcesPath, "yt-dlp.exe");
+const sourceYtDlp = path.join(process.resourcesPath, "yt-dlp.exe");
+
+
+if (!fs.existsSync(userYtDlp)) {
+  fs.copyFileSync(sourceYtDlp, userYtDlp);
+  logger.info(`yt-dlp copié dans le dossier utilisateur : ${userYtDlp}`);
+}
+
+//  Lancement de la mise à jour une seule fois au démarrage 
+execFile(userYtDlp, ["-U"], (err, stdout, stderr) => {
+  if (err) {
+    logger.warn("Erreur update yt-dlp:", err);
+    logger.debug(err);
+    return;
+  }
+  logger.info(`Update yt-dlp : ${stdout}`);
+});
+
+// Validation simple d'une URL
+function isValidUrl(url) {
+  return /^https?:\/\/.+/.test(url); // Petit Regex qui renvoie true si l'URL est bonne et False si elle est pas bonne
+}
+
+router.post("/", (req, res) => {
+  try {
+    const options = {
+      url: req.body.url,
+      audioOnly: req.body.audioOnly === "1",
+      quality: req.body.quality || "best",
+    };
+
+    if (!options.url) {
+      logger.warn("Requête POST /download sans URL");
+      return res.status(400).send("❌ URL manquante !");
+    }
+
+    if (!isValidUrl(options.url)) {
+      logger.warn(`URL invalide : ${options.url}`);
+      return res.status(400).send("❌ URL invalide !");
+    }
+
+    let requestedOutputFolder = req.body.savePath || req.app.locals.outputFolder;
+    requestedOutputFolder = path.normalize(requestedOutputFolder);
+
+    if (
+      !requestedOutputFolder ||
+      requestedOutputFolder.length < 3 ||
+      requestedOutputFolder.includes("System32") ||
+      requestedOutputFolder.includes("/etc") ||
+      requestedOutputFolder.includes("\\Windows")
+    ) {
+      logger.warn(`Chemin potentiellement dangereux refusé : ${requestedOutputFolder}`);
+      return res.status(400).send("❌ Chemin de sauvegarde non autorisé.");
+    }
+
+    if (!fs.existsSync(requestedOutputFolder)) {
+      fs.mkdirSync(requestedOutputFolder, { recursive: true });
+      logger.info(`Dossier de sortie créé : ${requestedOutputFolder}`);
+    }
+
+    const outputTemplate = path.join(requestedOutputFolder, "%(title)s.%(ext)s");
+
+    const args = [
+      "--no-continue",
+      // "--restrict-filenames",
+      "--no-overwrites",
+      
+      "--embed-thumbnail",
+      "--add-metadata",
+      "--concurrent-fragments", "8",
+      "--retries", "10",
+      "--fragment-retries", "10",
+      "--ffmpeg-location", path.join(process.resourcesPath, "ffmpeg.exe")
+    ];
+
+    if (options.audioOnly) {
+      args.push("-f", "bestaudio", "--extract-audio", "--audio-format", "mp3");
+    } else
+      args.push("--merge-output","mp4")
+
+    const qualityMap = {
+      best: "bestvideo+bestaudio/best/mp4",
+      medium: "bestvideo[height<=720]+bestaudio/best[height<=720]/mp4",
+      worst: "worstvideo+worstaudio/worst/mp4",
+      1080: "bestvideo[height<=1080]+bestaudio/best[height<=1080]/mp4",
+      720: "bestvideo[height<=720]+bestaudio/best[height<=720]/mp4",
+      480: "bestvideo[height<=480]+bestaudio/best[height<=480]/mp4",
+    };
+
+    const format = qualityMap[options.quality] || "best";
+    args.push("-f", format);
+    
+    args.push("-o", outputTemplate);
+    args.push(options.url);
+
+    logger.info(`Téléchargement demandé : url=${options.url}, audioOnly=${options.audioOnly}, quality=${options.quality}`);
+    logger.info(`Commande yt-dlp : ${ytDlpPath} ${args.join(" ")}`);
+
+    const child = execFile(userYtDlp, args);
+
+    child.stdout.on("data", (data) => {
+      data.toString().split("\n").forEach(line => {
+        if (line.trim()) logger.info(`[yt-dlp stdout] ${line.trim()}`);
+      });
+    });
+
+    child.stderr.on("data", (data) => {
+      data.toString().split("\n").forEach(line => {
+        if (line.trim()) logger.error(`[yt-dlp stderr] ${line.trim()}`);
+      });
+    });
+
+    child.on("error", (err) => {
+      logger.error(`Erreur lancement yt-dlp : ${err.message}`);
+      res.status(500).send(`❌ Erreur lors de l'exécution : ${err.message}`);
+    });
+
+    child.on("close", (code) => {
+      logger.info(`yt-dlp terminé avec code de sortie : ${code}`);
+      if (code === 0) {
+        const iconPath = path.join(process.resourcesPath, "confirm-icon.png");
+        const notif = new Notification({
+          title: "Freedom Loader",
+          body: "Ton téléchargement est terminé, clique ici pour l'ouvrir.",
+          icon: iconPath,
+        });
+
+        notif.on("click", () => {
+          const { shell } = require("electron");
+          shell.openPath(requestedOutputFolder);
+        });
+
+        notif.show();
+        res.send("✅ Téléchargement terminé !");
+      } else {
+        res.status(500).send(`❌ yt-dlp a échoué avec le code : ${code}`);
+      }
+    });
+
+  } catch (err) {
+    logger.error(`Erreur serveur dans /download : ${err.message}`);
+    res.status(500).send(`Erreur serveur : ${err.message}`);
+  }
+});
+
+module.exports = router;