Imported Upstream version 0.6.24+dfsg1

lib/kohana/system/helpers/security.php

@@ -0,0 +1,47 @@
+<?php defined('SYSPATH') OR die('No direct access allowed.');
+/**
+ * Security helper class.
+ *
+ * $Id: security.php 3769 2008-12-15 00:48:56Z zombor $
+ *
+ * @package    Core
+ * @author     Kohana Team
+ * @copyright  (c) 2007-2008 Kohana Team
+ * @license    http://kohanaphp.com/license.html
+ */
+class security_Core {
+
+	/**
+	 * Sanitize a string with the xss_clean method.
+	 *
+	 * @param   string  string to sanitize
+	 * @return  string
+	 */
+	public static function xss_clean($str)
+	{
+		return Input::instance()->xss_clean($str);
+	}
+
+	/**
+	 * Remove image tags from a string.
+	 *
+	 * @param   string  string to sanitize
+	 * @return  string
+	 */
+	public static function strip_image_tags($str)
+	{
+		return preg_replace('#<img\s.*?(?:src\s*=\s*["\']?([^"\'<>\s]*)["\']?[^>]*)?>#is', '$1', $str);
+	}
+
+	/**
+	 * Remove PHP tags from a string.
+	 *
+	 * @param   string  string to sanitize
+	 * @return  string
+	 */
+	public static function encode_php_tags($str)
+	{
+		return str_replace(array('<?', '?>'), array('&lt;?', '?&gt;'), $str);
+	}
+
+} // End security