742 lines
No EOL
26 KiB
PHP
742 lines
No EOL
26 KiB
PHP
<?php
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/**
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* Simple Machines Forum (SMF)
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*
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* @package SMF
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* @author Simple Machines http://www.simplemachines.org
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* @copyright 2011 Simple Machines
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* @license http://www.simplemachines.org/about/smf/license.php BSD
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*
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* @version 2.0.11
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*/
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if (!defined('SMF'))
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die('Hacking attempt...');
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/* This file is concerned pretty entirely, as you see from its name, with
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logging in and out members, and the validation of that. It contains:
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void Login()
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- shows a page for the user to type in their username and password.
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- caches the referring URL in $_SESSION['login_url'].
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- uses the Login template and language file with the login sub
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template.
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- if you are using a wireless device, uses the protocol_login sub
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template in the Wireless template.
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- accessed from ?action=login.
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void Login2()
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- actually logs you in and checks that login was successful.
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- employs protection against a specific IP or user trying to brute
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force a login to an account.
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- on error, uses the same templates Login() uses.
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- upgrades password encryption on login, if necessary.
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- after successful login, redirects you to $_SESSION['login_url'].
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- accessed from ?action=login2, by forms.
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void Logout(bool internal = false)
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- logs the current user out of their account.
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- requires that the session hash is sent as well, to prevent automatic
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logouts by images or javascript.
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- doesn't check the session if internal is true.
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- redirects back to $_SESSION['logout_url'], if it exists.
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- accessed via ?action=logout;session_var=...
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string md5_hmac(string data, string key)
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- old style SMF 1.0.x/YaBB SE 1.5.x hashing.
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- returns the HMAC MD5 of data with key.
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string phpBB3_password_check(string passwd, string passwd_hash)
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- custom encryption for phpBB3 based passwords.
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void validatePasswordFlood(id_member, password_flood_value = false, was_correct = false)
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- this function helps protect against brute force attacks on a member's password.
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*/
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// Ask them for their login information.
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function Login()
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{
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global $txt, $context, $scripturl;
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// In wireless? If so, use the correct sub template.
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if (WIRELESS)
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$context['sub_template'] = WIRELESS_PROTOCOL . '_login';
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// Otherwise, we need to load the Login template/language file.
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else
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{
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loadLanguage('Login');
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loadTemplate('Login');
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$context['sub_template'] = 'login';
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}
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// Get the template ready.... not really much else to do.
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$context['page_title'] = $txt['login'];
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$context['default_username'] = &$_REQUEST['u'];
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$context['default_password'] = '';
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$context['never_expire'] = false;
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// Add the login chain to the link tree.
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$context['linktree'][] = array(
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'url' => $scripturl . '?action=login',
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'name' => $txt['login'],
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);
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// Set the login URL - will be used when the login process is done (but careful not to send us to an attachment).
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if (isset($_SESSION['old_url']) && strpos($_SESSION['old_url'], 'dlattach') === false && preg_match('~(board|topic)[=,]~', $_SESSION['old_url']) != 0)
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$_SESSION['login_url'] = $_SESSION['old_url'];
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else
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unset($_SESSION['login_url']);
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}
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// Perform the actual logging-in.
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function Login2()
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{
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global $txt, $scripturl, $user_info, $user_settings, $smcFunc;
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global $cookiename, $maintenance, $modSettings, $context, $sc, $sourcedir;
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// Load cookie authentication stuff.
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require_once($sourcedir . '/Subs-Auth.php');
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if (isset($_GET['sa']) && $_GET['sa'] == 'salt' && !$user_info['is_guest'])
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{
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if (isset($_COOKIE[$cookiename]) && preg_match('~^a:[34]:\{i:0;(i:\d{1,6}|s:[1-8]:"\d{1,8}");i:1;s:(0|40):"([a-fA-F0-9]{40})?";i:2;[id]:\d{1,14};(i:3;i:\d;)?\}$~', $_COOKIE[$cookiename]) === 1)
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list (, , $timeout) = safe_unserialize($_COOKIE[$cookiename]);
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elseif (isset($_SESSION['login_' . $cookiename]))
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list (, , $timeout) = safe_unserialize($_SESSION['login_' . $cookiename]);
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else
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trigger_error('Login2(): Cannot be logged in without a session or cookie', E_USER_ERROR);
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$user_settings['password_salt'] = substr(md5(mt_rand()), 0, 4);
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updateMemberData($user_info['id'], array('password_salt' => $user_settings['password_salt']));
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setLoginCookie($timeout - time(), $user_info['id'], sha1($user_settings['passwd'] . $user_settings['password_salt']));
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redirectexit('action=login2;sa=check;member=' . $user_info['id'], $context['server']['needs_login_fix']);
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}
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// Double check the cookie...
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elseif (isset($_GET['sa']) && $_GET['sa'] == 'check')
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{
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// Strike! You're outta there!
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if ($_GET['member'] != $user_info['id'])
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fatal_lang_error('login_cookie_error', false);
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// Some whitelisting for login_url...
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if (empty($_SESSION['login_url']))
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redirectexit();
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else
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{
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// Best not to clutter the session data too much...
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$temp = $_SESSION['login_url'];
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unset($_SESSION['login_url']);
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redirectexit($temp);
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}
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}
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// Beyond this point you are assumed to be a guest trying to login.
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if (!$user_info['is_guest'])
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redirectexit();
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// Are you guessing with a script?
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spamProtection('login');
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// Set the login_url if it's not already set (but careful not to send us to an attachment).
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if (empty($_SESSION['login_url']) && isset($_SESSION['old_url']) && strpos($_SESSION['old_url'], 'dlattach') === false && preg_match('~(board|topic)[=,]~', $_SESSION['old_url']) != 0)
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$_SESSION['login_url'] = $_SESSION['old_url'];
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// Been guessing a lot, haven't we?
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if (isset($_SESSION['failed_login']) && $_SESSION['failed_login'] >= $modSettings['failed_login_threshold'] * 3)
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fatal_lang_error('login_threshold_fail', 'critical');
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// Set up the cookie length. (if it's invalid, just fall through and use the default.)
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if (isset($_POST['cookieneverexp']) || (!empty($_POST['cookielength']) && $_POST['cookielength'] == -1))
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$modSettings['cookieTime'] = 3153600;
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elseif (!empty($_POST['cookielength']) && ($_POST['cookielength'] >= 1 || $_POST['cookielength'] <= 525600))
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$modSettings['cookieTime'] = (int) $_POST['cookielength'];
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loadLanguage('Login');
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// Load the template stuff - wireless or normal.
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if (WIRELESS)
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$context['sub_template'] = WIRELESS_PROTOCOL . '_login';
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else
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{
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loadTemplate('Login');
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$context['sub_template'] = 'login';
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}
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// Set up the default/fallback stuff.
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$context['default_username'] = isset($_POST['user']) ? preg_replace('~&#(\\d{1,7}|x[0-9a-fA-F]{1,6});~', '&#\\1;', htmlspecialchars($_POST['user'])) : '';
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$context['default_password'] = '';
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$context['never_expire'] = $modSettings['cookieTime'] == 525600 || $modSettings['cookieTime'] == 3153600;
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$context['login_errors'] = array($txt['error_occured']);
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$context['page_title'] = $txt['login'];
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// Add the login chain to the link tree.
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$context['linktree'][] = array(
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'url' => $scripturl . '?action=login',
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'name' => $txt['login'],
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);
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if (!empty($_POST['openid_identifier']) && !empty($modSettings['enableOpenID']))
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{
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require_once($sourcedir . '/Subs-OpenID.php');
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if (($open_id = smf_openID_validate($_POST['openid_identifier'])) !== 'no_data')
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return $open_id;
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}
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// You forgot to type your username, dummy!
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if (!isset($_POST['user']) || $_POST['user'] == '')
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{
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$context['login_errors'] = array($txt['need_username']);
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return;
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}
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// Hmm... maybe 'admin' will login with no password. Uhh... NO!
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if ((!isset($_POST['passwrd']) || $_POST['passwrd'] == '') && (!isset($_POST['hash_passwrd']) || strlen($_POST['hash_passwrd']) != 40))
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{
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$context['login_errors'] = array($txt['no_password']);
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return;
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}
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// No funky symbols either.
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if (preg_match('~[<>&"\'=\\\]~', preg_replace('~(&#(\\d{1,7}|x[0-9a-fA-F]{1,6});)~', '', $_POST['user'])) != 0)
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{
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$context['login_errors'] = array($txt['error_invalid_characters_username']);
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return;
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}
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// And if it's too long, trim it back.
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if ($smcFunc['strlen']($_POST['user']) > 80)
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{
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$_POST['user'] = $smcFunc['substr']($_POST['user'], 0, 79);
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$context['default_username'] = preg_replace('~&#(\\d{1,7}|x[0-9a-fA-F]{1,6});~', '&#\\1;', $smcFunc['htmlspecialchars']($_POST['user']));
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}
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// Are we using any sort of integration to validate the login?
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if (in_array('retry', call_integration_hook('integrate_validate_login', array($_POST['user'], isset($_POST['hash_passwrd']) && strlen($_POST['hash_passwrd']) == 40 ? $_POST['hash_passwrd'] : null, $modSettings['cookieTime'])), true))
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{
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$context['login_errors'] = array($txt['login_hash_error']);
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$context['disable_login_hashing'] = true;
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return;
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}
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// Load the data up!
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$request = $smcFunc['db_query']('', '
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SELECT mem.passwd, mem.id_member, mem.id_group, mem.lngfile, mem.is_activated, mem.email_address, mem.additional_groups, mem.member_name, mem.password_salt,
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mem.openid_uri, mem.passwd_flood, IFNULL(sub.id_parent, 0) AS id_parent
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FROM {db_prefix}members AS mem
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LEFT JOIN {db_prefix}subaccounts AS sub ON (sub.id_member = mem.id_member)
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WHERE ' . ($smcFunc['db_case_sensitive'] ? 'LOWER(mem.member_name) = LOWER({string:user_name})' : 'mem.member_name = {string:user_name}') . '
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LIMIT 1',
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array(
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'user_name' => $smcFunc['db_case_sensitive'] ? strtolower($_POST['user']) : $_POST['user'],
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)
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);
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// Probably mistyped or their email, try it as an email address. (member_name first, though!)
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if ($smcFunc['db_num_rows']($request) == 0)
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{
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$smcFunc['db_free_result']($request);
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$request = $smcFunc['db_query']('', '
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SELECT mem.passwd, mem.id_member, mem.id_group, mem.lngfile, mem.is_activated, mem.email_address, mem.additional_groups, mem.member_name, mem.password_salt,
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mem.openid_uri, mem.passwd_flood, IFNULL(sub.id_parent, 0) AS id_parent
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FROM {db_prefix}members AS mem
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LEFT JOIN {db_prefix}subaccounts AS sub ON (sub.id_member = mem.id_member)
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WHERE mem.email_address = {string:user_name}
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LIMIT 1',
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array(
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'user_name' => $_POST['user'],
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)
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);
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// Let them try again, it didn't match anything...
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if ($smcFunc['db_num_rows']($request) == 0)
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{
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$context['login_errors'] = array($txt['username_no_exist']);
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return;
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}
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}
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$user_settings = $smcFunc['db_fetch_assoc']($request);
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$smcFunc['db_free_result']($request);
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// SubAccount?
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if (!empty($user_settings['id_parent']))
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{
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$context['login_errors'] = array($txt['no_subaccount_login']);
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return;
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}
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// Figure out the password using SMF's encryption - if what they typed is right.
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if (isset($_POST['hash_passwrd']) && strlen($_POST['hash_passwrd']) == 40)
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{
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// Needs upgrading?
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if (strlen($user_settings['passwd']) != 40)
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{
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$context['login_errors'] = array($txt['login_hash_error']);
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$context['disable_login_hashing'] = true;
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unset($user_settings);
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return;
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}
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// Challenge passed.
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elseif ($_POST['hash_passwrd'] == sha1($user_settings['passwd'] . $sc))
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$sha_passwd = $user_settings['passwd'];
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else
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{
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// Don't allow this!
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validatePasswordFlood($user_settings['id_member'], $user_settings['passwd_flood']);
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$_SESSION['failed_login'] = @$_SESSION['failed_login'] + 1;
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if ($_SESSION['failed_login'] >= $modSettings['failed_login_threshold'])
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redirectexit('action=reminder');
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else
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{
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log_error($txt['incorrect_password'] . ' - <span class="remove">' . $user_settings['member_name'] . '</span>', 'user');
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$context['disable_login_hashing'] = true;
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$context['login_errors'] = array($txt['incorrect_password']);
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unset($user_settings);
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return;
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}
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}
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}
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else
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$sha_passwd = sha1(strtolower($user_settings['member_name']) . un_htmlspecialchars($_POST['passwrd']));
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// Bad password! Thought you could fool the database?!
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if ($user_settings['passwd'] != $sha_passwd)
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{
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// Let's be cautious, no hacking please. thanx.
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validatePasswordFlood($user_settings['id_member'], $user_settings['passwd_flood']);
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// Maybe we were too hasty... let's try some other authentication methods.
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$other_passwords = array();
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// None of the below cases will be used most of the time (because the salt is normally set.)
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if ($user_settings['password_salt'] == '')
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{
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// YaBB SE, Discus, MD5 (used a lot), SHA-1 (used some), SMF 1.0.x, IkonBoard, and none at all.
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$other_passwords[] = crypt($_POST['passwrd'], substr($_POST['passwrd'], 0, 2));
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$other_passwords[] = crypt($_POST['passwrd'], substr($user_settings['passwd'], 0, 2));
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$other_passwords[] = md5($_POST['passwrd']);
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$other_passwords[] = sha1($_POST['passwrd']);
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$other_passwords[] = md5_hmac($_POST['passwrd'], strtolower($user_settings['member_name']));
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$other_passwords[] = md5($_POST['passwrd'] . strtolower($user_settings['member_name']));
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$other_passwords[] = md5(md5($_POST['passwrd']));
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$other_passwords[] = $_POST['passwrd'];
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// This one is a strange one... MyPHP, crypt() on the MD5 hash.
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$other_passwords[] = crypt(md5($_POST['passwrd']), md5($_POST['passwrd']));
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// Snitz style - SHA-256. Technically, this is a downgrade, but most PHP configurations don't support sha256 anyway.
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if (strlen($user_settings['passwd']) == 64 && function_exists('mhash') && defined('MHASH_SHA256'))
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$other_passwords[] = bin2hex(mhash(MHASH_SHA256, $_POST['passwrd']));
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// phpBB3 users new hashing. We now support it as well ;).
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$other_passwords[] = phpBB3_password_check($_POST['passwrd'], $user_settings['passwd']);
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// APBoard 2 Login Method.
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$other_passwords[] = md5(crypt($_POST['passwrd'], 'CRYPT_MD5'));
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}
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// The hash should be 40 if it's SHA-1, so we're safe with more here too.
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elseif (strlen($user_settings['passwd']) == 32)
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{
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// vBulletin 3 style hashing? Let's welcome them with open arms \o/.
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$other_passwords[] = md5(md5($_POST['passwrd']) . $user_settings['password_salt']);
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// Hmm.. p'raps it's Invision 2 style?
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$other_passwords[] = md5(md5($user_settings['password_salt']) . md5($_POST['passwrd']));
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// Some common md5 ones.
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$other_passwords[] = md5($user_settings['password_salt'] . $_POST['passwrd']);
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$other_passwords[] = md5($_POST['passwrd'] . $user_settings['password_salt']);
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}
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elseif (strlen($user_settings['passwd']) == 40)
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{
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// Maybe they are using a hash from before the password fix.
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$other_passwords[] = sha1(strtolower($user_settings['member_name']) . un_htmlspecialchars($_POST['passwrd']));
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// BurningBoard3 style of hashing.
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$other_passwords[] = sha1($user_settings['password_salt'] . sha1($user_settings['password_salt'] . sha1($_POST['passwrd'])));
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// Perhaps we converted to UTF-8 and have a valid password being hashed differently.
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if ($context['character_set'] == 'utf8' && !empty($modSettings['previousCharacterSet']) && $modSettings['previousCharacterSet'] != 'utf8')
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{
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// Try iconv first, for no particular reason.
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if (function_exists('iconv'))
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$other_passwords['iconv'] = sha1(strtolower(iconv('UTF-8', $modSettings['previousCharacterSet'], $user_settings['member_name'])) . un_htmlspecialchars(iconv('UTF-8', $modSettings['previousCharacterSet'], $_POST['passwrd'])));
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// Say it aint so, iconv failed!
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if (empty($other_passwords['iconv']) && function_exists('mb_convert_encoding'))
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$other_passwords[] = sha1(strtolower(mb_convert_encoding($user_settings['member_name'], 'UTF-8', $modSettings['previousCharacterSet'])) . un_htmlspecialchars(mb_convert_encoding($_POST['passwrd'], 'UTF-8', $modSettings['previousCharacterSet'])));
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}
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}
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// SMF's sha1 function can give a funny result on Linux (Not our fault!). If we've now got the real one let the old one be valid!
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if (strpos(strtolower(PHP_OS), 'win') !== 0)
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{
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require_once($sourcedir . '/Subs-Compat.php');
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$other_passwords[] = sha1_smf(strtolower($user_settings['member_name']) . un_htmlspecialchars($_POST['passwrd']));
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}
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// Whichever encryption it was using, let's make it use SMF's now ;).
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if (in_array($user_settings['passwd'], $other_passwords))
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{
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$user_settings['passwd'] = $sha_passwd;
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$user_settings['password_salt'] = substr(md5(mt_rand()), 0, 4);
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// Update the password and set up the hash.
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updateMemberData($user_settings['id_member'], array('passwd' => $user_settings['passwd'], 'password_salt' => $user_settings['password_salt'], 'passwd_flood' => ''));
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}
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// Okay, they for sure didn't enter the password!
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else
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{
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// They've messed up again - keep a count to see if they need a hand.
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$_SESSION['failed_login'] = @$_SESSION['failed_login'] + 1;
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// Hmm... don't remember it, do you? Here, try the password reminder ;).
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if ($_SESSION['failed_login'] >= $modSettings['failed_login_threshold'])
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redirectexit('action=reminder');
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// We'll give you another chance...
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else
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{
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// Log an error so we know that it didn't go well in the error log.
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log_error($txt['incorrect_password'] . ' - <span class="remove">' . $user_settings['member_name'] . '</span>', 'user');
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$context['login_errors'] = array($txt['incorrect_password']);
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return;
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}
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}
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}
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elseif (!empty($user_settings['passwd_flood']))
|
|
{
|
|
// Let's be sure they weren't a little hacker.
|
|
validatePasswordFlood($user_settings['id_member'], $user_settings['passwd_flood'], true);
|
|
|
|
// If we got here then we can reset the flood counter.
|
|
updateMemberData($user_settings['id_member'], array('passwd_flood' => ''));
|
|
}
|
|
|
|
// Correct password, but they've got no salt; fix it!
|
|
if ($user_settings['password_salt'] == '')
|
|
{
|
|
$user_settings['password_salt'] = substr(md5(mt_rand()), 0, 4);
|
|
updateMemberData($user_settings['id_member'], array('password_salt' => $user_settings['password_salt']));
|
|
}
|
|
|
|
// Check their activation status.
|
|
if (!checkActivation())
|
|
return;
|
|
|
|
DoLogin();
|
|
}
|
|
|
|
function checkActivation()
|
|
{
|
|
global $context, $txt, $scripturl, $user_settings, $modSettings;
|
|
|
|
if (!isset($context['login_errors']))
|
|
$context['login_errors'] = array();
|
|
|
|
// What is the true activation status of this account?
|
|
$activation_status = $user_settings['is_activated'] > 10 ? $user_settings['is_activated'] - 10 : $user_settings['is_activated'];
|
|
|
|
// Check if the account is activated - COPPA first...
|
|
if ($activation_status == 5)
|
|
{
|
|
$context['login_errors'][] = $txt['coppa_no_concent'] . ' <a href="' . $scripturl . '?action=coppa;member=' . $user_settings['id_member'] . '">' . $txt['coppa_need_more_details'] . '</a>';
|
|
return false;
|
|
}
|
|
// Awaiting approval still?
|
|
elseif ($activation_status == 3)
|
|
fatal_lang_error('still_awaiting_approval', 'user');
|
|
// Awaiting deletion, changed their mind?
|
|
elseif ($activation_status == 4)
|
|
{
|
|
if (isset($_REQUEST['undelete']))
|
|
{
|
|
updateMemberData($user_settings['id_member'], array('is_activated' => 1));
|
|
updateSettings(array('unapprovedMembers' => ($modSettings['unapprovedMembers'] > 0 ? $modSettings['unapprovedMembers'] - 1 : 0)));
|
|
}
|
|
else
|
|
{
|
|
$context['disable_login_hashing'] = true;
|
|
$context['login_errors'][] = $txt['awaiting_delete_account'];
|
|
$context['login_show_undelete'] = true;
|
|
return false;
|
|
}
|
|
}
|
|
// Standard activation?
|
|
elseif ($activation_status != 1)
|
|
{
|
|
log_error($txt['activate_not_completed1'] . ' - <span class="remove">' . $user_settings['member_name'] . '</span>', false);
|
|
|
|
$context['login_errors'][] = $txt['activate_not_completed1'] . ' <a href="' . $scripturl . '?action=activate;sa=resend;u=' . $user_settings['id_member'] . '">' . $txt['activate_not_completed2'] . '</a>';
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
function DoLogin()
|
|
{
|
|
global $txt, $scripturl, $user_info, $user_settings, $smcFunc;
|
|
global $cookiename, $maintenance, $modSettings, $context, $sourcedir;
|
|
|
|
// Load cookie authentication stuff.
|
|
require_once($sourcedir . '/Subs-Auth.php');
|
|
|
|
// Call login integration functions.
|
|
call_integration_hook('integrate_login', array($user_settings['member_name'], isset($_POST['hash_passwrd']) && strlen($_POST['hash_passwrd']) == 40 ? $_POST['hash_passwrd'] : null, $modSettings['cookieTime']));
|
|
|
|
// Get ready to set the cookie...
|
|
$username = $user_settings['member_name'];
|
|
$user_info['id'] = $user_settings['id_member'];
|
|
|
|
// Bam! Cookie set. A session too, just in case.
|
|
setLoginCookie(60 * $modSettings['cookieTime'], $user_settings['id_member'], sha1($user_settings['passwd'] . $user_settings['password_salt']));
|
|
|
|
// Reset the login threshold.
|
|
if (isset($_SESSION['failed_login']))
|
|
unset($_SESSION['failed_login']);
|
|
|
|
$user_info['is_guest'] = false;
|
|
$user_settings['additional_groups'] = explode(',', $user_settings['additional_groups']);
|
|
$user_info['is_admin'] = $user_settings['id_group'] == 1 || in_array(1, $user_settings['additional_groups']);
|
|
|
|
// Are you banned?
|
|
is_not_banned(true);
|
|
|
|
// An administrator, set up the login so they don't have to type it again.
|
|
if ($user_info['is_admin'] && isset($user_settings['openid_uri']) && empty($user_settings['openid_uri']))
|
|
{
|
|
$_SESSION['admin_time'] = time();
|
|
unset($_SESSION['just_registered']);
|
|
}
|
|
|
|
// Don't stick the language or theme after this point.
|
|
unset($_SESSION['language'], $_SESSION['id_theme']);
|
|
|
|
// First login?
|
|
$request = $smcFunc['db_query']('', '
|
|
SELECT last_login
|
|
FROM {db_prefix}members
|
|
WHERE id_member = {int:id_member}
|
|
AND last_login = 0',
|
|
array(
|
|
'id_member' => $user_info['id'],
|
|
)
|
|
);
|
|
if ($smcFunc['db_num_rows']($request) == 1)
|
|
$_SESSION['first_login'] = true;
|
|
else
|
|
unset($_SESSION['first_login']);
|
|
$smcFunc['db_free_result']($request);
|
|
|
|
// You've logged in, haven't you?
|
|
updateMemberData($user_info['id'], array('last_login' => time(), 'member_ip' => $user_info['ip'], 'member_ip2' => $_SERVER['BAN_CHECK_IP']));
|
|
|
|
// Get rid of the online entry for that old guest....
|
|
$smcFunc['db_query']('', '
|
|
DELETE FROM {db_prefix}log_online
|
|
WHERE session = {string:session}',
|
|
array(
|
|
'session' => 'ip' . $user_info['ip'],
|
|
)
|
|
);
|
|
$_SESSION['log_time'] = 0;
|
|
|
|
// Just log you back out if it's in maintenance mode and you AREN'T an admin.
|
|
if (empty($maintenance) || allowedTo('admin_forum'))
|
|
redirectexit('action=login2;sa=check;member=' . $user_info['id'], $context['server']['needs_login_fix']);
|
|
else
|
|
redirectexit('action=logout;' . $context['session_var'] . '=' . $context['session_id'], $context['server']['needs_login_fix']);
|
|
}
|
|
|
|
// Log the user out.
|
|
function Logout($internal = false, $redirect = true)
|
|
{
|
|
global $sourcedir, $user_info, $user_settings, $context, $modSettings, $smcFunc;
|
|
|
|
// Make sure they aren't being auto-logged out.
|
|
if (!$internal)
|
|
checkSession('get');
|
|
|
|
require_once($sourcedir . '/Subs-Auth.php');
|
|
|
|
if (isset($_SESSION['pack_ftp']))
|
|
$_SESSION['pack_ftp'] = null;
|
|
|
|
// They cannot be open ID verified any longer.
|
|
if (isset($_SESSION['openid']))
|
|
unset($_SESSION['openid']);
|
|
|
|
// It won't be first login anymore.
|
|
unset($_SESSION['first_login']);
|
|
|
|
// Just ensure they aren't a guest!
|
|
if (!$user_info['is_guest'])
|
|
{
|
|
// Pass the logout information to integrations.
|
|
call_integration_hook('integrate_logout', array($user_settings['member_name']));
|
|
|
|
// If you log out, you aren't online anymore :P.
|
|
$smcFunc['db_query']('', '
|
|
DELETE FROM {db_prefix}log_online
|
|
WHERE id_member = {int:current_member}',
|
|
array(
|
|
'current_member' => $user_info['id'],
|
|
)
|
|
);
|
|
}
|
|
|
|
$_SESSION['log_time'] = 0;
|
|
|
|
// Empty the cookie! (set it in the past, and for id_member = 0)
|
|
setLoginCookie(-3600, 0);
|
|
|
|
// And some other housekeeping while we're at it.
|
|
session_destroy();
|
|
if (!empty($user_info['id']))
|
|
updateMemberData($user_info['id'], array('password_salt' => substr(md5(mt_rand()), 0, 4)));
|
|
|
|
// Off to the merry board index we go!
|
|
if ($redirect)
|
|
{
|
|
if (empty($_SESSION['logout_url']))
|
|
redirectexit('', $context['server']['needs_login_fix']);
|
|
else
|
|
{
|
|
$temp = $_SESSION['logout_url'];
|
|
unset($_SESSION['logout_url']);
|
|
|
|
redirectexit($temp, $context['server']['needs_login_fix']);
|
|
}
|
|
}
|
|
}
|
|
|
|
// MD5 Encryption used for older passwords.
|
|
function md5_hmac($data, $key)
|
|
{
|
|
$key = str_pad(strlen($key) <= 64 ? $key : pack('H*', md5($key)), 64, chr(0x00));
|
|
return md5(($key ^ str_repeat(chr(0x5c), 64)) . pack('H*', md5(($key ^ str_repeat(chr(0x36), 64)) . $data)));
|
|
}
|
|
|
|
// Special encryption used by phpBB3.
|
|
function phpBB3_password_check($passwd, $passwd_hash)
|
|
{
|
|
// Too long or too short?
|
|
if (strlen($passwd_hash) != 34)
|
|
return;
|
|
|
|
// Range of characters allowed.
|
|
$range = './0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz';
|
|
|
|
// Tests
|
|
$strpos = strpos($range, $passwd_hash[3]);
|
|
$count = 1 << $strpos;
|
|
$count2 = $count;
|
|
$salt = substr($passwd_hash, 4, 8);
|
|
|
|
// Things are done differently for PHP 5.
|
|
if (@version_compare(PHP_VERSION, '5') >= 0)
|
|
{
|
|
$hash = md5($salt . $passwd, true);
|
|
for (; $count != 0; --$count)
|
|
$hash = md5($hash . $passwd, true);
|
|
}
|
|
else
|
|
{
|
|
$hash = pack('H*', md5($salt . $passwd));
|
|
for (; $count != 0; --$count)
|
|
$hash = pack('H*', md5($hash . $passwd));
|
|
}
|
|
|
|
$output = substr($passwd_hash, 0, 12);
|
|
$i = 0;
|
|
while ($i < 16)
|
|
{
|
|
$value = ord($hash[$i++]);
|
|
$output .= $range[$value & 0x3f];
|
|
|
|
if ($i < 16)
|
|
$value |= ord($hash[$i]) << 8;
|
|
|
|
$output .= $range[($value >> 6) & 0x3f];
|
|
|
|
if ($i++ >= 16)
|
|
break;
|
|
|
|
if ($i < 16)
|
|
$value |= ord($hash[$i]) << 16;
|
|
|
|
$output .= $range[($value >> 12) & 0x3f];
|
|
|
|
if ($i++ >= 16)
|
|
break;
|
|
|
|
$output .= $range[($value >> 18) & 0x3f];
|
|
}
|
|
|
|
// Return now.
|
|
return $output;
|
|
}
|
|
|
|
// This protects against brute force attacks on a member's password. Importantly even if the password was right we DON'T TELL THEM!
|
|
function validatePasswordFlood($id_member, $password_flood_value = false, $was_correct = false)
|
|
{
|
|
global $smcFunc, $cookiename, $sourcedir;
|
|
|
|
// As this is only brute protection, we allow 5 attempts every 10 seconds.
|
|
|
|
// Destroy any session or cookie data about this member, as they validated wrong.
|
|
require_once($sourcedir . '/Subs-Auth.php');
|
|
setLoginCookie(-3600, 0);
|
|
|
|
if (isset($_SESSION['login_' . $cookiename]))
|
|
unset($_SESSION['login_' . $cookiename]);
|
|
|
|
// We need a member!
|
|
if (!$id_member)
|
|
{
|
|
// Redirect back!
|
|
redirectexit();
|
|
|
|
// Probably not needed, but still make sure...
|
|
fatal_lang_error('no_access', false);
|
|
}
|
|
|
|
// Right, have we got a flood value?
|
|
if ($password_flood_value !== false)
|
|
@list ($time_stamp, $number_tries) = explode('|', $password_flood_value);
|
|
|
|
// Timestamp or number of tries invalid?
|
|
if (empty($number_tries) || empty($time_stamp))
|
|
{
|
|
$number_tries = 0;
|
|
$time_stamp = time();
|
|
}
|
|
|
|
// They've failed logging in already
|
|
if (!empty($number_tries))
|
|
{
|
|
// Give them less chances if they failed before
|
|
$number_tries = $time_stamp < time() - 20 ? 2 : $number_tries;
|
|
|
|
// They are trying too fast, make them wait longer
|
|
if ($time_stamp < time() - 10)
|
|
$time_stamp = time();
|
|
}
|
|
|
|
$number_tries++;
|
|
|
|
// Broken the law?
|
|
if ($number_tries > 5)
|
|
fatal_lang_error('login_threshold_brute_fail', 'critical');
|
|
|
|
// Otherwise set the members data. If they correct on their first attempt then we actually clear it, otherwise we set it!
|
|
updateMemberData($id_member, array('passwd_flood' => $was_correct && $number_tries == 1 ? '' : $time_stamp . '|' . $number_tries));
|
|
|
|
}
|
|
|
|
?>
|