Просмотр файла app/Classes/CloudFlare.php

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  1. <?php
  2.  
  3. declare(strict_types=1);
  4.  
  5. namespace App\Classes;
  6.  
  7. use Closure;
  8. use Illuminate\Http\Request;
  9. use Symfony\Component\HttpFoundation\IpUtils;
  10.  
  11. class CloudFlare
  12. {
  13.     /**
  14.      * List of IP's used by CloudFlare.
  15.      * @const array
  16.      */
  17.     protected const IPS = [
  18.         '103.21.244.0/22',
  19.         '103.22.200.0/22',
  20.         '103.31.4.0/22',
  21.         '104.16.0.0/13',
  22.         '104.24.0.0/14',
  23.         '108.162.192.0/18',
  24.         '131.0.72.0/22',
  25.         '141.101.64.0/18',
  26.         '162.158.0.0/15',
  27.         '172.64.0.0/13',
  28.         '173.245.48.0/20',
  29.         '188.114.96.0/20',
  30.         '190.93.240.0/20',
  31.         '197.234.240.0/22',
  32.         '198.41.128.0/17',
  33.         '2400:cb00::/32',
  34.         '2405:8100::/32',
  35.         '2405:b500::/32',
  36.         '2606:4700::/32',
  37.         '2803:f800::/32',
  38.         '2c0f:f248::/32',
  39.         '2a06:98c0::/29',
  40.     ];
  41.  
  42.     /**
  43.      * @var Request
  44.      */
  45.     private $request;
  46.  
  47.     public function __construct(Request $request)
  48.     {
  49.         $this->request = $request;
  50.     }
  51.  
  52.     /**
  53.      * Checks if current request is coming from CloudFlare servers.
  54.      *
  55.      * @return bool
  56.      */
  57.     public function isTrustedRequest(): bool
  58.     {
  59.         return IpUtils::checkIp($this->request->ip(), static::IPS);
  60.     }
  61.  
  62.     /**
  63.      * Executes a callback on a trusted request.
  64.      *
  65.      * @param  Closure $callback
  66.      *
  67.      * @return mixed
  68.      */
  69.     public function onTrustedRequest(Closure $callback)
  70.     {
  71.         if ($this->isTrustedRequest()) {
  72.             return $callback();
  73.         }
  74.     }
  75.  
  76.     /**
  77.      * Determines "the real" IP address from the current request.
  78.      *
  79.      * @return string
  80.      */
  81.     public function ip(): string
  82.     {
  83.         return $this->onTrustedRequest(function () {
  84.             return filter_var($this->request->header('CF_CONNECTING_IP'), FILTER_VALIDATE_IP);
  85.         }) ?: $this->request->ip();
  86.     }
  87.  
  88.     /**
  89.      * Determines country from the current request.
  90.      *
  91.      * @return string
  92.      */
  93.     public function country(): string
  94.     {
  95.         return $this->onTrustedRequest(function () {
  96.             return $this->request->header('CF_IPCOUNTRY');
  97.         }) ?: '';
  98.     }
  99. }