FEATURE #1401: add middleware for registering modules

app/Http/Middleware/ModuleRegistrator.php

@@ -0,0 +1,33 @@
+<?php
+
+namespace App\Http\Middleware;
+
+use Closure;
+
+class ModuleRegistrator
+{
+    /**
+     * Handle an incoming request.
+     *
+     * @param  \Illuminate\Http\Request $request
+     * @param  \Closure                 $next
+     *
+     * @return mixed
+     */
+    public function handle($request, Closure $next)
+    {
+        $modules = \Module::enabled();
+
+        // iterate over all enabled modules
+        foreach ($modules as $key => $module) {
+            $handler = config($module->getName() . '.handler');
+
+            // try to register menus
+            if (method_exists($handler, 'registerAdminMenu') && \Auth::check()) {
+                call_user_func([$handler, 'registerAdminMenu'], \Auth::user());
+            }
+        }
+
+        return $next($request);
+    }
+}