Helpers + Clean Download et Info

server/helpers/buildArgs.js

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+const path = require("path");
+
+function buildYtDlpArgs({ url, audioOnly, quality, outputFolder }) {
+  const args = [
+    "--no-continue",
+    "--no-overwrites",
+    "--embed-thumbnail",
+    "--add-metadata",
+    "--concurrent-fragments", "8",
+    "--retries", "10",
+    "--fragment-retries", "10",
+    "--ffmpeg-location", path.join(process.resourcesPath, "ffmpeg.exe")
+  ];
+
+  if (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",
+  };
+
+  args.push("-f", qualityMap[quality] || "best");
+  args.push("-o", path.join(outputFolder, "%(title)s.%(ext)s"));
+  args.push(url);
+
+  return args;
+}
+
+module.exports = { buildYtDlpArgs };

server/helpers/notify.js

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+const { Notification, shell } = require("electron");
+const path = require("path");
+
+function notifyDownloadFinished(folder) {
+  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", () => shell.openPath(folder));
+  notif.show();
+}
+
+module.exports = { notifyDownloadFinished };

server/helpers/path.js

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+const path = require("path");
+const fs = require("fs");
+const { app } = require("electron");
+
+const userYtDlp = path.join(app.getPath("userData"), "yt-dlp.exe");
+const sourceYtDlp = path.join(process.resourcesPath, "yt-dlp.exe");
+
+if (!fs.existsSync(userYtDlp)) fs.copyFileSync(sourceYtDlp, userYtDlp);
+
+module.exports = { 
+    userYtDlp, 
+    sourceYtDlp 
+};

server/helpers/validation.js

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+const path = require("path");
+
+function isValidUrl(url) {
+  try {
+    new URL(url);
+    return true;
+  } catch {
+    return false;
+  }
+}
+
+function isSafePath(folder) {
+  if (!folder || folder.length < 3) return false;
+  const unsafe = ["System32", "/etc", "\\Windows"];
+  const resolved = path.resolve(folder);
+  return !unsafe.some(u => resolved.includes(u));
+}
+
+module.exports = { isValidUrl, isSafePath };