v5.0.0 update

app/Http/Controllers/V1/Admin/Update/CheckVersionController.php

@@ -0,0 +1,33 @@
+<?php
+
+namespace Crater\Http\Controllers\V1\Admin\Update;
+
+use Crater\Http\Controllers\Controller;
+use Crater\Models\Setting;
+use Crater\Space\Updater;
+use Illuminate\Http\Request;
+
+class CheckVersionController extends Controller
+{
+    /**
+     * Handle the incoming request.
+     *
+     * @param  \Illuminate\Http\Request  $request
+     * @return \Illuminate\Http\JsonResponse
+     */
+    public function __invoke(Request $request)
+    {
+        if ((! $request->user()) || (! $request->user()->isOwner())) {
+            return response()->json([
+                'success' => false,
+                'message' => 'You are not allowed to update this app.'
+            ], 401);
+        }
+
+        set_time_limit(600); // 10 minutes
+
+        $json = Updater::checkForUpdate(Setting::getSetting('version'));
+
+        return response()->json($json);
+    }
+}