Helpers + Clean Download et Info

server/helpers/validation.js

@@ -0,0 +1,19 @@
+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 };