<?php
declare(strict_types = 1);

namespace App\Http\Middleware;

use Closure;
use Illuminate\Http\Request;

class IntranetAccess
{

    /**
     * @param Request $request
     * @param Closure $next
     * @return mixed
     */
    public function handle(Request $request, Closure $next): mixed
    {
		$forwarded = request()->header("x-forwarded-for");
		if($forwarded){
			$ip = explode(',',$forwarded)[0];
		}else{
			$ip = request()->ip();
		}

		if(
			$ip != '::1' &&
			$ip != '127.0.0.1' &&
            !str_starts_with($ip, "10.") &&
            !str_starts_with($ip, "172.") &&
            !str_starts_with($ip, "192.")
		) {
			return response('Not Found.', 404);
		}

		return $next($request);
	}

}