032.CI4 framework CodeIgniter, frequently using the throttle classes IP access restrictions, IP restrictions within certain period of time only GET / POST how many times

01. We created App / Filters Throttle.php a directory file, which is written only have access to 10 times in one minute, if the time exceeds one second to access the code is as follows:

<?php namespace App\Filters;

use CodeIgniter\Filters\FilterInterface;
use CodeIgniter\HTTP\RequestInterface;
use CodeIgniter\HTTP\ResponseInterface;
use Config\Services;

class Throttle implements FilterInterface
{
    // This is a class for use Trottler applications to achieve rate-limiting examples of 
    public  function before (RequestInterface $ Request )
    {
        $throttler = Services::throttler();

        // the entire IP address on the site is limited to no more than one request per second 
        IF ( $ Throttler -> Check ( $ Request -> getIPAddress (), 10, MINUTE) === to false ) {
             return Services :: Response ( ) -> setStatusCode (429 );
        }
    }

    // temporarily nothing to do 
    public  function the After (RequestInterface $ Request , ResponseInterface $ the Response )
    {
    }
}

 

 

 

02. We in App / Config / Filters file, write the following code:

    public $aliases = [
        'csrf'     => \CodeIgniter\Filters\CSRF::class,
        'toolbar'  => \CodeIgniter\Filters\DebugToolbar::class,
        'honeypot' => \CodeIgniter\Filters\Honeypot::class,
        'throttle' => \App\Filters\Throttle::class,
    ];

    public $methods = [
        'post' => ['throttle', 'CSRF'],
        'get'  => ['throttle'],
    ];

 

 

03. We write the code for a controller output in the controller

<?php namespace App\Controllers;

class Hello extends BaseController
{
    //http://127.0.0.1/CI4/public/index.php/hello/

    function __construct()
    {
    }

    public function index()
    {
        echo '青青子衿悠悠我心' . rand(100, 999);
    }
    //--------------------------------------------------------------------
}

 

 

04.打开浏览器，我们浏览器访问http://127.0.0.1/CI4/public/index.php/hello/，效果如下

 

05.我们1分钟超过10次访问http://127.0.0.1/CI4/public/index.php/hello/之后，会发现浏览器无法显示。需要等2秒再访问，这样就很完美的起到了限制IP频繁访问的作用了。

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