Initial Kohana install

[speedfreak] / Server / system / libraries / drivers / Captcha / Math.php

diff --git a/Server/system/libraries/drivers/Captcha/Math.php b/Server/system/libraries/drivers/Captcha/Math.php
new file mode 100644 (file)
index 0000000..4ac2024
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+++ b/Server/system/libraries/drivers/Captcha/Math.php
@@ -0,0 +1,61 @@
+<?php defined('SYSPATH') OR die('No direct access allowed.');
+/**
+ * Captcha driver for "math" style.
+ *
+ * $Id: Math.php 3769 2008-12-15 00:48:56Z zombor $
+ *
+ * @package    Captcha
+ * @author     Kohana Team
+ * @copyright  (c) 2007-2008 Kohana Team
+ * @license    http://kohanaphp.com/license.html
+ */
+class Captcha_Math_Driver extends Captcha_Driver {
+
+       private $math_exercice;
+
+       /**
+        * Generates a new Captcha challenge.
+        *
+        * @return  string  the challenge answer
+        */
+       public function generate_challenge()
+       {
+               // Easy
+               if (Captcha::$config['complexity'] < 4)
+               {
+                       $numbers[] = mt_rand(1, 5);
+                       $numbers[] = mt_rand(1, 4);
+               }
+               // Normal
+               elseif (Captcha::$config['complexity'] < 7)
+               {
+                       $numbers[] = mt_rand(10, 20);
+                       $numbers[] = mt_rand(1, 10);
+               }
+               // Difficult, well, not really ;)
+               else
+               {
+                       $numbers[] = mt_rand(100, 200);
+                       $numbers[] = mt_rand(10, 20);
+                       $numbers[] = mt_rand(1, 10);
+               }
+
+               // Store the question for output
+               $this->math_exercice = implode(' + ', $numbers).' = ';
+
+               // Return the answer
+               return array_sum($numbers);
+       }
+
+       /**
+        * Outputs the Captcha riddle.
+        *
+        * @param   boolean  html output
+        * @return  mixed
+        */
+       public function render($html)
+       {
+               return $this->math_exercice;
+       }
+
+} // End Captcha Math Driver Class
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