Improve filemanager, get first level folders listing

app/Http/Controllers/Server/FileController.php

@@ -0,0 +1,69 @@
+<?php
+
+namespace Pterodactyl\Http\Controllers\Server;
+
+use Illuminate\Http\Request;
+use Illuminate\Http\JsonResponse;
+use GuzzleHttp\Exception\TransferException;
+use Pterodactyl\Http\Controllers\Controller;
+use Pterodactyl\Contracts\Repository\Daemon\FileRepositoryInterface;
+use Pterodactyl\Exceptions\Http\Connection\DaemonConnectionException;
+
+class FileController extends Controller
+{
+    /**
+     * @var \Pterodactyl\Contracts\Repository\Daemon\FileRepositoryInterface
+     */
+    private $fileRepository;
+
+    /**
+     * FileController constructor.
+     *
+     * @param \Pterodactyl\Contracts\Repository\Daemon\FileRepositoryInterface $fileRepository
+     */
+    public function __construct(FileRepositoryInterface $fileRepository)
+    {
+        $this->fileRepository = $fileRepository;
+    }
+
+    /**
+     * @param \Illuminate\Http\Request $request
+     * @return \Illuminate\Http\JsonResponse
+     *
+     * @throws \Illuminate\Auth\Access\AuthorizationException
+     * @throws \Pterodactyl\Exceptions\Http\Connection\DaemonConnectionException
+     */
+    public function index(Request $request): JsonResponse
+    {
+        $server = $request->attributes->get('server');
+        $this->authorize('list-files', $server);
+
+        $requestDirectory = '/' . trim(urldecode($request->route()->parameter('directory', '/')), '/');
+        $directory = [
+            'header' => $requestDirectory !== '/' ? $requestDirectory : '',
+            'first' => $requestDirectory !== '/',
+        ];
+
+        $goBack = explode('/', trim($requestDirectory, '/'));
+        if (! empty(array_filter($goBack)) && count($goBack) >= 2) {
+            array_pop($goBack);
+            $directory['show'] = true;
+            $directory['link'] = '/' . implode('/', $goBack);
+            $directory['link_show'] = implode('/', $goBack) . '/';
+        }
+
+        try {
+            $contents = $this->fileRepository->setServer($server)->setToken(
+                $request->attributes->get('server_token')
+            )->getDirectory($requestDirectory);
+        } catch (TransferException $exception) {
+            throw new DaemonConnectionException($exception, true);
+        }
+
+        return JsonResponse::create([
+            'contents' => $contents,
+            'editable' => config('pterodactyl.files.editable'),
+            'current_directory' => $directory,
+        ]);
+    }
+}