<?php
/***************************************************************************
 *                                login.php
 *                            -------------------
 *   begin                : Saturday, Feb 13, 2001
 *   copyright            : (C) 2001 The phpBB Group
 *   email                : support@phpbb.com
 *
 *   $Id: login.php,v 1.47.2.13 2003/06/20 07:40:27 acydburn Exp $
 *
 *
 ***************************************************************************/

/***************************************************************************
 *
 *   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation; either version 2 of the License, or
 *   (at your option) any later version.
 *
 ***************************************************************************/

//
// Allow people to reach login page if
// board is shut down
//
define("IN_LOGIN", true);

define('IN_PHPBB', true);
$phpbb_root_path = './';
include($phpbb_root_path . 'extension.inc');
include($phpbb_root_path . 'common.'.$phpEx);

//
// Set page ID for session management
//
$userdata = session_pagestart($user_ip, PAGE_LOGIN);
init_userprefs($userdata);
//
// End session management
//

if( isset($HTTP_POST_VARS['login']) || isset($HTTP_GET_VARS['login']) || isset($HTTP_POST_VARS['logout']) || isset($HTTP_GET_VARS['logout']) )
{
	if( ( isset($HTTP_POST_VARS['login']) || isset($HTTP_GET_VARS['login']) ) && !$userdata['session_logged_in'] )
	{
		$username = isset($HTTP_POST_VARS['username']) ? trim(htmlspecialchars($HTTP_POST_VARS['username'])) : '';
		$username = substr(str_replace("\\'", "'", $username), 0, 25);
		$username = str_replace("'", "\\'", $username);
		$password = isset($HTTP_POST_VARS['password']) ? $HTTP_POST_VARS['password'] : '';

		$sql = "SELECT uid, uname, pass, level, user_level
			FROM " . USERS_TABLE . "
			WHERE uname = '" . str_replace("\\'", "''", $username) . "'";
		if ( !($result = $db->sql_query($sql)) )
		{
			message_die(GENERAL_ERROR, 'Error in obtaining userdata', '', __LINE__, __FILE__, $sql);
		}

		if( $row = $db->sql_fetchrow($result) )
		{
			if( $row['user_level'] != ADMIN && $board_config['board_disable'] )
			{
				redirect(append_sid("index.$phpEx", true));
			}
			else
			{
				if( md5($password) == $row['pass'] && $row['level'] )
				{
					$autologin = ( isset($HTTP_POST_VARS['autologin']) ) ? "On" : "";

// XOOPS redirect login
			@Header("location: ".XOOPS_URL."/user.php?op=login&AutoLogin=".$autologin."&uname=".$username."&pass=".$password."&pbb=".$HTTP_SERVER_VARS['HTTP_REFERER']);
//
				}
				else
				{
					$redirect = ( !empty($HTTP_POST_VARS['redirect']) ) ? $HTTP_POST_VARS['redirect'] : '';
					$redirect = str_replace('?', '&', $redirect);

					$template->assign_vars(array(
						'META' => "<meta http-equiv=\"refresh\" content=\"3;url=login.$phpEx?redirect=$redirect\">")
					);

					$message = $lang['Error_login'] . '<br /><br />' . sprintf($lang['Click_return_login'], "<a href=\"login.$phpEx?redirect=$redirect\">", '</a>') . '<br /><br />' .  sprintf($lang['Click_return_index'], '<a href="' . append_sid("index.$phpEx") . '">', '</a>');

					message_die(GENERAL_MESSAGE, $message);
				}
			}
		}
		else
		{
			$redirect = ( !empty($HTTP_POST_VARS['redirect']) ) ? $HTTP_POST_VARS['redirect'] : "";
			$redirect = str_replace("?", "&", $redirect);

			$template->assign_vars(array(
				'META' => "<meta http-equiv=\"refresh\" content=\"3;url=login.$phpEx?redirect=$redirect\">")
			);

			$message = $lang['Error_login'] . '<br /><br />' . sprintf($lang['Click_return_login'], "<a href=\"login.$phpEx?redirect=$redirect\">", '</a>') . '<br /><br />' .  sprintf($lang['Click_return_index'], '<a href="' . append_sid("index.$phpEx") . '">', '</a>');

			message_die(GENERAL_MESSAGE, $message);
		}
	}
	else if( ( isset($HTTP_GET_VARS['logout']) || isset($HTTP_POST_VARS['logout']) ) && $userdata['session_logged_in'] )
	{
// XOOPS redirect logout
			@Header("location: ".XOOPS_URL."/user.php?op=logout");
//
	}
	else
	{
		$url = ( !empty($HTTP_POST_VARS['redirect']) ) ? $HTTP_POST_VARS['redirect'] : "index.$phpEx";
		redirect(append_sid($url, true));
	}
}
else
{
	//
	// Do a full login page dohickey if
	// user not already logged in
	//
	if( !$userdata['session_logged_in'] )
	{
		$page_title = $lang['Login'];
		include($phpbb_root_path . 'includes/page_header.'.$phpEx);

		$template->set_filenames(array(
			'body' => 'login_body.tpl')
		);

		if( isset($HTTP_POST_VARS['redirect']) || isset($HTTP_GET_VARS['redirect']) )
		{
			$forward_to = $HTTP_SERVER_VARS['QUERY_STRING'];

			if( preg_match("/^redirect=([a-z0-9\.#\/\?&=\+\-_]+)/si", $forward_to, $forward_matches) )
			{
				$forward_to = ( !empty($forward_matches[3]) ) ? $forward_matches[3] : $forward_matches[1];
				$forward_match = explode('&', $forward_to);

				if(count($forward_match) > 1)
				{
					$forward_page = '';

					for($i = 1; $i < count($forward_match); $i++)
					{
						if( !ereg("sid=", $forward_match[$i]) )
						{
							if( $forward_page != '' )
							{
								$forward_page .= '&';
							}
							$forward_page .= $forward_match[$i];
						}
					}
					$forward_page = $forward_match[0] . '?' . $forward_page;
				}
				else
				{
					$forward_page = $forward_match[0];
				}
			}
		}
		else
		{
			$forward_page = '';
		}

		$username = ( $userdata['uid'] != ANONYMOUS ) ? $userdata['uname'] : '';

		$s_hidden_fields = '<input type="hidden" name="redirect" value="' . $forward_page . '" />';

		make_jumpbox('viewforum.'.$phpEx, $forum_id);
		$template->assign_vars(array(
			'USERNAME' => $username,

			'L_ENTER_PASSWORD' => $lang['Enter_password'],
			'L_SEND_PASSWORD' => $lang['Forgotten_password'],

			'U_SEND_PASSWORD' => append_sid("profile.$phpEx?mode=sendpassword"),

			'S_HIDDEN_FIELDS' => $s_hidden_fields)
		);

		$template->pparse('body');

		include($phpbb_root_path . 'includes/page_tail.'.$phpEx);
	}
	else
	{
		redirect(append_sid("index.$phpEx", true));
	}

}

?>