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688d57f99c
- it would be nice if anyone able would be testing these changes on their installations and report bugs as soon as possible (also do not hestitate to PM the developers. ;)). - the changelog is ommitted for now - it will get checked in later. git-svn-id: file:///svn/phpbb/branches/phpBB-2_0_0@6772 89ea8834-ac86-4346-8a33-228a782c2dd0
265 lines
No EOL
9.3 KiB
PHP
265 lines
No EOL
9.3 KiB
PHP
<?php
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/***************************************************************************
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* login.php
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* -------------------
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* begin : Saturday, Feb 13, 2001
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* copyright : (C) 2001 The phpBB Group
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* email : support@phpbb.com
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*
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* $Id$
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*
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*
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***************************************************************************/
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/***************************************************************************
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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***************************************************************************/
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//
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// Allow people to reach login page if
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// board is shut down
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//
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define("IN_LOGIN", true);
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define('IN_PHPBB', true);
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$phpbb_root_path = './';
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include($phpbb_root_path . 'extension.inc');
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include($phpbb_root_path . 'common.'.$phpEx);
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//
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// Set page ID for session management
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//
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$userdata = session_pagestart($user_ip, PAGE_LOGIN);
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init_userprefs($userdata);
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//
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// End session management
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//
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// session id check
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if (!empty($HTTP_POST_VARS['sid']) || !empty($HTTP_GET_VARS['sid']))
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{
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$sid = (!empty($HTTP_POST_VARS['sid'])) ? $HTTP_POST_VARS['sid'] : $HTTP_GET_VARS['sid'];
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}
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else
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{
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$sid = '';
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}
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if( isset($HTTP_POST_VARS['login']) || isset($HTTP_GET_VARS['login']) || isset($HTTP_POST_VARS['logout']) || isset($HTTP_GET_VARS['logout']) )
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{
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if( ( isset($HTTP_POST_VARS['login']) || isset($HTTP_GET_VARS['login']) ) && (!$userdata['session_logged_in'] || isset($HTTP_POST_VARS['admin'])) )
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{
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$username = isset($HTTP_POST_VARS['username']) ? phpbb_clean_username($HTTP_POST_VARS['username']) : '';
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$password = isset($HTTP_POST_VARS['password']) ? $HTTP_POST_VARS['password'] : '';
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$sql = "SELECT user_id, username, user_password, user_active, user_level, user_login_tries, user_last_login_try
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FROM " . USERS_TABLE . "
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WHERE username = '" . str_replace("\\'", "''", $username) . "'";
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if ( !($result = $db->sql_query($sql)) )
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{
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message_die(GENERAL_ERROR, 'Error in obtaining userdata', '', __LINE__, __FILE__, $sql);
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}
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if( $row = $db->sql_fetchrow($result) )
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{
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if( $row['user_level'] != ADMIN && $board_config['board_disable'] )
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{
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redirect(append_sid("index.$phpEx", true));
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}
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else
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{
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// If the last login is more than x minutes ago, then reset the login tries/time
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if ($row['user_last_login_try'] && $board_config['login_reset_time'] && $row['user_last_login_try'] < (time() - ($board_config['login_reset_time'] * 60)))
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{
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$db->sql_query('UPDATE ' . USERS_TABLE . ' SET user_login_tries = 0, user_last_login_try = 0 WHERE user_id = ' . $row['user_id']);
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$row['user_last_login_try'] = $row['user_login_tries'] = 0;
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}
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// Check to see if user is allowed to login again... if his tries are exceeded
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if ($row['user_last_login_try'] && $board_config['login_reset_time'] && $board_config['max_login_attempts'] &&
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$row['user_last_login_try'] >= (time() - ($board_config['login_reset_time'] * 60)) && $row['user_login_tries'] >= $board_config['max_login_attempts'] && $userdata['user_level'] != ADMIN)
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{
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message_die(GENERAL_MESSAGE, sprintf($lang['Login_attempts_exceeded'], $board_config['max_login_attempts'], $board_config['login_reset_time']));
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}
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if( md5($password) == $row['user_password'] && $row['user_active'] )
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{
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$autologin = ( isset($HTTP_POST_VARS['autologin']) ) ? TRUE : 0;
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$admin = (isset($HTTP_POST_VARS['admin'])) ? 1 : 0;
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$session_id = session_begin($row['user_id'], $user_ip, PAGE_INDEX, FALSE, $autologin, $admin);
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// Reset login tries
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$db->sql_query('UPDATE ' . USERS_TABLE . ' SET user_login_tries = 0, user_last_login_try = 0 WHERE user_id = ' . $row['user_id']);
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if( $session_id )
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{
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$url = ( !empty($HTTP_POST_VARS['redirect']) ) ? str_replace('&', '&', htmlspecialchars($HTTP_POST_VARS['redirect'])) : "index.$phpEx";
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redirect(append_sid($url, true));
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}
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else
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{
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message_die(CRITICAL_ERROR, "Couldn't start session : login", "", __LINE__, __FILE__);
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}
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}
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// Only store a failed login attempt for an active user - inactive users can't login even with a correct password
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elseif( $row['user_active'] )
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{
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// Save login tries and last login
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if ($row['user_id'] != ANONYMOUS)
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{
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$sql = 'UPDATE ' . USERS_TABLE . '
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SET user_login_tries = user_login_tries + 1, user_last_login_try = ' . time() . '
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WHERE user_id = ' . $row['user_id'];
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$db->sql_query($sql);
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}
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}
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$redirect = ( !empty($HTTP_POST_VARS['redirect']) ) ? str_replace('&', '&', htmlspecialchars($HTTP_POST_VARS['redirect'])) : '';
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$redirect = str_replace('?', '&', $redirect);
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if (strstr(urldecode($redirect), "\n") || strstr(urldecode($redirect), "\r") || strstr(urldecode($redirect), ';url'))
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{
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message_die(GENERAL_ERROR, 'Tried to redirect to potentially insecure url.');
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}
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$template->assign_vars(array(
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'META' => "<meta http-equiv=\"refresh\" content=\"3;url=login.$phpEx?redirect=$redirect\">")
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);
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$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>');
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message_die(GENERAL_MESSAGE, $message);
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}
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}
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else
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{
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$redirect = ( !empty($HTTP_POST_VARS['redirect']) ) ? str_replace('&', '&', htmlspecialchars($HTTP_POST_VARS['redirect'])) : "";
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$redirect = str_replace("?", "&", $redirect);
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if (strstr(urldecode($redirect), "\n") || strstr(urldecode($redirect), "\r") || strstr(urldecode($redirect), ';url'))
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{
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message_die(GENERAL_ERROR, 'Tried to redirect to potentially insecure url.');
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}
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$template->assign_vars(array(
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'META' => "<meta http-equiv=\"refresh\" content=\"3;url=login.$phpEx?redirect=$redirect\">")
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);
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$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>');
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message_die(GENERAL_MESSAGE, $message);
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}
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}
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else if( ( isset($HTTP_GET_VARS['logout']) || isset($HTTP_POST_VARS['logout']) ) && $userdata['session_logged_in'] )
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{
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// session id check
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if ($sid == '' || $sid != $userdata['session_id'])
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{
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message_die(GENERAL_ERROR, 'Invalid_session');
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}
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if( $userdata['session_logged_in'] )
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{
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session_end($userdata['session_id'], $userdata['user_id']);
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}
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if (!empty($HTTP_POST_VARS['redirect']) || !empty($HTTP_GET_VARS['redirect']))
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{
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$url = (!empty($HTTP_POST_VARS['redirect'])) ? htmlspecialchars($HTTP_POST_VARS['redirect']) : htmlspecialchars($HTTP_GET_VARS['redirect']);
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$url = str_replace('&', '&', $url);
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redirect(append_sid($url, true));
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}
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else
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{
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redirect(append_sid("index.$phpEx", true));
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}
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}
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else
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{
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$url = ( !empty($HTTP_POST_VARS['redirect']) ) ? str_replace('&', '&', htmlspecialchars($HTTP_POST_VARS['redirect'])) : "index.$phpEx";
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redirect(append_sid($url, true));
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}
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}
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else
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{
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//
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// Do a full login page dohickey if
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// user not already logged in
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//
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if( !$userdata['session_logged_in'] || (isset($HTTP_GET_VARS['admin']) && $userdata['session_logged_in'] && $userdata['user_level'] == ADMIN))
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{
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$page_title = $lang['Login'];
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include($phpbb_root_path . 'includes/page_header.'.$phpEx);
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$template->set_filenames(array(
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'body' => 'login_body.tpl')
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);
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$forward_page = '';
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if( isset($HTTP_POST_VARS['redirect']) || isset($HTTP_GET_VARS['redirect']) )
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{
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$forward_to = $HTTP_SERVER_VARS['QUERY_STRING'];
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if( preg_match("/^redirect=([a-z0-9\.#\/\?&=\+\-_]+)/si", $forward_to, $forward_matches) )
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{
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$forward_to = ( !empty($forward_matches[3]) ) ? $forward_matches[3] : $forward_matches[1];
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$forward_match = explode('&', $forward_to);
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if(count($forward_match) > 1)
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{
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for($i = 1; $i < count($forward_match); $i++)
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{
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if( !ereg("sid=", $forward_match[$i]) )
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{
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if( $forward_page != '' )
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{
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$forward_page .= '&';
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}
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$forward_page .= $forward_match[$i];
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}
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}
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$forward_page = $forward_match[0] . '?' . $forward_page;
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}
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else
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{
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$forward_page = $forward_match[0];
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}
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}
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}
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$username = ( $userdata['user_id'] != ANONYMOUS ) ? $userdata['username'] : '';
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$s_hidden_fields = '<input type="hidden" name="redirect" value="' . $forward_page . '" />';
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$s_hidden_fields .= (isset($HTTP_GET_VARS['admin'])) ? '<input type="hidden" name="admin" value="1" />' : '';
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make_jumpbox('viewforum.'.$phpEx);
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$template->assign_vars(array(
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'USERNAME' => $username,
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'L_ENTER_PASSWORD' => (isset($HTTP_GET_VARS['admin'])) ? $lang['Admin_reauthenticate'] : $lang['Enter_password'],
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'L_SEND_PASSWORD' => $lang['Forgotten_password'],
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'U_SEND_PASSWORD' => append_sid("profile.$phpEx?mode=sendpassword"),
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'S_HIDDEN_FIELDS' => $s_hidden_fields)
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);
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$template->pparse('body');
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include($phpbb_root_path . 'includes/page_tail.'.$phpEx);
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}
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else
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{
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redirect(append_sid("index.$phpEx", true));
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}
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}
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?>
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