lib/Drupal/cryptolog/CryptologManager.php

   1 <?php
   2
   3 /**
   4  * @file
   5  * Definition of Drupal\cryptolog\CryptologManager.
   6  */
   7
   8 namespace Drupal\cryptolog;
   9
  10 /**
  11  * Cryptolog Manager.
  12  */
  13 class CryptologManager {
  14
  15   /**
  16    * The memory-based data store.
  17    */
  18   protected $cache;
  19
  20   /**
  21    * Construct the Cryptolog Manager.
  22    */
  23   public function __construct() {
  24     foreach (array('dmemcache_set' => 'dmemcache_get', 'apc_store' => 'apc_fetch', 'xcache_set' => 'xcache_get') as $set => $get) {
  25       if (function_exists($set)) {
  26         $this->cache = $get('cryptolog');
  27         $day = gmdate('zY');
  28         if (!$this->cache || $this->cache['day'] !== $day) {
  29           $this->cache = array('day' => $day, 'salt' => drupal_random_bytes(32));
  30           $set('cryptolog', $this->cache, 86400);
  31         }
  32         break;
  33       }
  34     }
  35   }
  36
  37   /**
  38    * Sets the client IP address.
  39    */
  40   public function setClientIP() {
  41     global $request;
  42     if ($this->cache) {
  43       // Generate a keyed hash in IPv6 address notation.
  44       $_SERVER['REMOTE_ADDR'] = inet_ntop(hash_hmac('md5', ip_address(), $this->cache['salt'], TRUE));
  45       drupal_static_reset('ip_address');
  46       $request->server->set('REMOTE_ADDR', $_SERVER['REMOTE_ADDR']);
  47     }
  48   }
  49
  50 }