ininitial froxlor commit;

'reverted' old-style update-process;
removed billing-classes, -functions and -templates;
some sql-fixes;

lib/functions/validate/function.validateUsername.php

@@ -0,0 +1,45 @@
+<?php
+
+/**
+ * This file is part of the SysCP project.
+ * Copyright (c) 2003-2009 the SysCP Team (see authors).
+ *
+ * For the full copyright and license information, please view the COPYING
+ * file that was distributed with this source code. You can also view the
+ * COPYING file online at http://files.syscp.org/misc/COPYING.txt
+ *
+ * @copyright  (c) the authors
+ * @author     Florian Lippert <flo@syscp.org>
+ * @license    GPLv2 http://files.syscp.org/misc/COPYING.txt
+ * @package    Functions
+ * @version    $Id: function.validateUsername.php 2724 2009-06-07 14:18:02Z flo $
+ */
+
+/**
+ * Returns if an username is in correct format or not.
+ *
+ * @param string The username to check
+ * @return bool Correct or not
+ * @author Michael Duergner <michael@duergner.com>
+ *
+ * @changes Backported regex from SysCP 1.3 (lib/classes/Syscp/Handler/Validation.class.php)
+ */
+
+function validateUsername($username, $unix_names = 1, $mysql_max = '')
+{
+	if($unix_names == 0)
+	{
+		if(strpos($username, '--') === false)
+		{
+			return (preg_match('/^[a-z][a-z0-9\-_]{1,' . (int)($mysql_max - 1) . '}[a-z0-9]{1}$/Di', $username) != false);
+		}
+		else
+		{
+			return false;
+		}
+	}
+	else
+	{
+		return (preg_match('/^[a-z][a-z0-9]{1,' . $mysql_max . '}$/Di', $username) != false);
+	}
+}