ldc-gen-game-web/app/Http/Middleware/IsAdmin.php

<?php

namespace App\Http\Middleware;

use Closure;
use Illuminate\Support\Facades\Auth;

class IsAdmin
{
    /**
     * Handle an incoming request.
     *
     * @param mixed    $request
     * @param \Closure $next
     * @return mixed
     */
    public function handle($request, Closure $next)
    {
        /** @var \App\Models\User|null $user */
        $user = Auth::user();
        if ($user and $user->isLocal()) {
            return $next($request);
        }
        abort(404, "Cette page n'existe pas.");
    }
}