1 files changed, 47 insertions, 0 deletions
diff --git a/kohana/libraries/drivers/Captcha/Riddle.php b/kohana/libraries/drivers/Captcha/Riddle.php
new file mode 100644
index 00000000..a19b906c
--- /dev/null
+++ b/kohana/libraries/drivers/Captcha/Riddle.php
@@ -0,0 +1,47 @@
+<?php defined('SYSPATH') OR die('No direct access allowed.');
+/**
+ * Captcha driver for "riddle" style.
+ *
+ * $Id$
+ *
+ * @package    Captcha
+ * @author     Kohana Team
+ * @copyright  (c) 2007-2008 Kohana Team
+ * @license    http://kohanaphp.com/license.html
+ */
+class Captcha_Riddle_Driver extends Captcha_Driver {
+
+	private $riddle;
+
+	/**
+	 * Generates a new Captcha challenge.
+	 *
+	 * @return  string  the challenge answer
+	 */
+	public function generate_challenge()
+	{
+		// Load riddles from the current language
+		$riddles = Kohana::lang('captcha.riddles');
+
+		// Pick a random riddle
+		$riddle = $riddles[array_rand($riddles)];
+
+		// Store the question for output
+		$this->riddle = $riddle[0];
+
+		// Return the answer
+		return $riddle[1];
+	}
+
+	/**
+	 * Outputs the Captcha riddle.
+	 *
+	 * @param   boolean  html output
+	 * @return  mixed
+	 */
+	public function render($html)
+	{
+		return $this->riddle;
+	}
+
+} // End Captcha Riddle Driver Class
+\ No newline at end of file