Initial Commit

server/routes/browse.js

@@ -0,0 +1,55 @@
+'use strict';
+const { Router } = require('express');
+const fs   = require('fs');
+const path = require('path');
+
+const router = Router();
+
+/** Return available drive letters on Windows. */
+function getWindowsRoots() {
+  const roots = [];
+  for (let code = 65; code <= 90; code++) {
+    const drive = `${String.fromCharCode(code)}:\\`;
+    try { fs.accessSync(drive); roots.push({ name: drive, path: drive }); } catch { /* skip */ }
+  }
+  return roots;
+}
+
+router.get('/', (req, res) => {
+  const reqPath = req.query.path ? String(req.query.path) : null;
+
+  // No path → return filesystem roots
+  if (!reqPath) {
+    const isWindows = process.platform === 'win32';
+    const dirs = isWindows ? getWindowsRoots() : [{ name: '/', path: '/' }];
+    return res.json({ path: null, parent: null, dirs });
+  }
+
+  // Validate: must exist and be a directory
+  let stat;
+  try { stat = fs.statSync(reqPath); }
+  catch { return res.status(400).json({ error: 'Path does not exist' }); }
+
+  if (!stat.isDirectory()) {
+    return res.status(400).json({ error: 'Path is not a directory' });
+  }
+
+  // List subdirectories, excluding hidden entries
+  let dirs;
+  try {
+    dirs = fs.readdirSync(reqPath, { withFileTypes: true })
+      .filter(e => e.isDirectory() && !e.name.startsWith('.'))
+      .map(e => ({ name: e.name, path: path.join(reqPath, e.name) }))
+      .sort((a, b) => a.name.localeCompare(b.name));
+  } catch {
+    return res.status(403).json({ error: 'Cannot read directory' });
+  }
+
+  // Compute parent; at a drive root on Windows dirname === reqPath
+  const parent = path.dirname(reqPath);
+  const atRoot = parent === reqPath;
+
+  res.json({ path: reqPath, parent: atRoot ? null : parent, dirs });
+});
+
+module.exports = router;