Added permission system

app/Http/Middleware/PermissionMiddleware.php

@@ -0,0 +1,28 @@
+<?php
+
+namespace Oxbow\Http\Middleware;
+
+use Closure;
+use Illuminate\Support\Facades\Session;
+
+class PermissionMiddleware
+{
+    /**
+     * Handle an incoming request.
+     *
+     * @param  \Illuminate\Http\Request $request
+     * @param  \Closure                 $next
+     * @param                           $permission
+     * @return mixed
+     */
+    public function handle($request, Closure $next, $permission)
+    {
+
+        if (!$request->user() || !$request->user()->can($permission)) {
+            Session::flash('error', trans('errors.permission'));
+            return redirect()->back();
+        }
+
+        return $next($request);
+    }
+}