acf

plugins/system/nrframework/NRFramework/VisitorToken.php

@@ -0,0 +1,112 @@
+<?php 
+
+/**
+ * @author          Tassos Marinos <info@tassos.gr>
+ * @link            https://www.tassos.gr
+ * @copyright       Copyright © 2024 Tassos All Rights Reserved
+ * @license         GNU GPLv3 <http://www.gnu.org/licenses/gpl.html> or later
+*/
+
+namespace NRFramework;
+
+defined('_JEXEC') or die('Restricted access');
+
+use Joomla\CMS\Factory;
+use Joomla\CMS\Crypt\Crypt;
+
+class VisitorToken
+{
+   /**
+     *  Class instance
+     *
+     *  @var  object
+     */
+    private static $instance;
+
+	/**
+	 *  Cookie Name
+	 *
+	 *  @var  string
+	 */
+	private $cookieName = "nrid";
+
+	/**
+	 *  Represents the maximum age of the visitor's cookie in seconds.
+	 *
+	 *  @var  Integer
+	 */
+	private $expire = 90000000;
+
+    /**
+     *  Cookies Object
+     *
+     *  @var  object
+     */
+    private $cookies;
+
+    /**
+     *  Class constructor
+     */
+    private function __construct()
+    {
+        $this->cookies = Factory::getApplication()->input->cookie;
+
+        $token = $this->cookies->get($this->cookieName, null);
+
+        if ($token === null)
+        {
+            $this->store($this->create());
+        }
+    }
+
+    /**
+     *  Returns class instance
+     *
+     *  @return  object
+     */
+    public static function getInstance()
+    {
+        if (is_null(self::$instance))
+        {
+            self::$instance = new self();
+        }
+
+        return self::$instance;
+    }
+
+    /**
+     *  Get a visitor's unique token id, if a token isn't set yet one will be generated.
+     *
+     *  @param   boolean   $forceNew  If true, force a new token to be created
+     *  
+     *  @return  string    The session token
+     */
+    public function get($forceNew = false)
+    {
+        return $this->cookies->get($this->cookieName);
+    }
+
+    /**
+     *  Create a token-string
+     *
+     *  @param   integer $length  Length of string
+     *
+     *  @return  string  Generated token
+     */
+    private function create($length = 8)
+    {
+        return bin2hex(Crypt::genRandomBytes($length));
+    }
+
+    /**
+     *  Saves the cookie to the visitor's browser
+     *
+     *  @param   string  $value  Cookie Value
+     *
+     *  @return  void
+     */
+    private function store($value)
+    {
+        $this->cookies->set($this->cookieName, $value, time() + $this->expire, '/', '', true);
+    }
+}