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- <?php
- /**
- * This file is concerned pretty entirely, as you see from its name, with
- * logging in and out members, and the validation of that.
- *
- * Simple Machines Forum (SMF)
- *
- * @package SMF
- * @author Simple Machines http://www.simplemachines.org
- * @copyright 2013 Simple Machines and individual contributors
- * @license http://www.simplemachines.org/about/smf/license.php BSD
- *
- * @version 2.1 Alpha 1
- */
- if (!defined('SMF'))
- die('No direct access...');
- /**
- * Ask them for their login information. (shows a page for the user to type
- * in their username and password.)
- * It caches the referring URL in $_SESSION['login_url'].
- * It is accessed from ?action=login.
- * @uses Login template and language file with the login sub-template.
- * @uses the protocol_login sub-template in the Wireless template,
- * if you are using a wireless device
- */
- function Login()
- {
- global $txt, $context, $scripturl, $user_info;
- // You are already logged in, go take a tour of the boards
- if (!empty($user_info['id']))
- redirectexit();
- // In wireless? If so, use the correct sub template.
- if (WIRELESS)
- $context['sub_template'] = WIRELESS_PROTOCOL . '_login';
- // Otherwise, we need to load the Login template/language file.
- else
- {
- loadLanguage('Login');
- loadTemplate('Login');
- $context['sub_template'] = 'login';
- }
- // Get the template ready.... not really much else to do.
- $context['page_title'] = $txt['login'];
- $context['default_username'] = &$_REQUEST['u'];
- $context['default_password'] = '';
- $context['never_expire'] = false;
- // Add the login chain to the link tree.
- $context['linktree'][] = array(
- 'url' => $scripturl . '?action=login',
- 'name' => $txt['login'],
- );
- // Set the login URL - will be used when the login process is done (but careful not to send us to an attachment).
- if (isset($_SESSION['old_url']) && strpos($_SESSION['old_url'], 'dlattach') === false && preg_match('~(board|topic)[=,]~', $_SESSION['old_url']) != 0)
- $_SESSION['login_url'] = $_SESSION['old_url'];
- else
- unset($_SESSION['login_url']);
- // Create a one time token.
- createToken('login');
- }
- /**
- * Actually logs you in.
- * What it does:
- * - checks credentials and checks that login was successful.
- * - it employs protection against a specific IP or user trying to brute force
- * a login to an account.
- * - upgrades password encryption on login, if necessary.
- * - after successful login, redirects you to $_SESSION['login_url'].
- * - accessed from ?action=login2, by forms.
- * On error, uses the same templates Login() uses.
- */
- function Login2()
- {
- global $txt, $scripturl, $user_info, $user_settings, $smcFunc;
- global $cookiename, $modSettings, $context, $sc, $sourcedir;
- // Load cookie authentication stuff.
- require_once($sourcedir . '/Subs-Auth.php');
- if (isset($_GET['sa']) && $_GET['sa'] == 'salt' && !$user_info['is_guest'])
- {
- 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)
- list (, , $timeout) = @unserialize($_COOKIE[$cookiename]);
- elseif (isset($_SESSION['login_' . $cookiename]))
- list (, , $timeout) = @unserialize($_SESSION['login_' . $cookiename]);
- else
- trigger_error('Login2(): Cannot be logged in without a session or cookie', E_USER_ERROR);
- $user_settings['password_salt'] = substr(md5(mt_rand()), 0, 4);
- updateMemberData($user_info['id'], array('password_salt' => $user_settings['password_salt']));
- setLoginCookie($timeout - time(), $user_info['id'], sha1($user_settings['passwd'] . $user_settings['password_salt']));
- redirectexit('action=login2;sa=check;member=' . $user_info['id'], $context['server']['needs_login_fix']);
- }
- // Double check the cookie...
- elseif (isset($_GET['sa']) && $_GET['sa'] == 'check')
- {
- // Strike! You're outta there!
- if ($_GET['member'] != $user_info['id'])
- fatal_lang_error('login_cookie_error', false);
- $user_info['can_mod'] = allowedTo('access_mod_center') || (!$user_info['is_guest'] && ($user_info['mod_cache']['gq'] != '0=1' || $user_info['mod_cache']['bq'] != '0=1' || ($modSettings['postmod_active'] && !empty($user_info['mod_cache']['ap']))));
- if ($user_info['can_mod'] && isset($user_settings['openid_uri']) && empty($user_settings['openid_uri']))
- {
- $_SESSION['moderate_time'] = time();
- unset($_SESSION['just_registered']);
- }
- // Some whitelisting for login_url...
- if (empty($_SESSION['login_url']))
- redirectexit();
- elseif (!empty($_SESSION['login_url']) && (strpos('http://', $_SESSION['login_url']) === false && strpos('https://', $_SESSION['login_url']) === false))
- {
- unset ($_SESSION['login_url']);
- redirectexit();
- }
- else
- {
- // Best not to clutter the session data too much...
- $temp = $_SESSION['login_url'];
- unset($_SESSION['login_url']);
- redirectexit($temp);
- }
- }
- // Beyond this point you are assumed to be a guest trying to login.
- if (!$user_info['is_guest'])
- redirectexit();
- // Are you guessing with a script?
- checkSession('post');
- $tk = validateToken('login');
- spamProtection('login');
- // Set the login_url if it's not already set (but careful not to send us to an attachment).
- if ((empty($_SESSION['login_url']) && isset($_SESSION['old_url']) && strpos($_SESSION['old_url'], 'dlattach') === false && preg_match('~(board|topic)[=,]~', $_SESSION['old_url']) != 0) || (isset($_GET['quicklogin']) && isset($_SESSION['old_url']) && strpos($_SESSION['old_url'], 'login') === false))
- $_SESSION['login_url'] = $_SESSION['old_url'];
- // Been guessing a lot, haven't we?
- if (isset($_SESSION['failed_login']) && $_SESSION['failed_login'] >= $modSettings['failed_login_threshold'] * 3)
- fatal_lang_error('login_threshold_fail', 'critical');
- // Set up the cookie length. (if it's invalid, just fall through and use the default.)
- if (isset($_POST['cookieneverexp']) || (!empty($_POST['cookielength']) && $_POST['cookielength'] == -1))
- $modSettings['cookieTime'] = 3153600;
- elseif (!empty($_POST['cookielength']) && ($_POST['cookielength'] >= 1 || $_POST['cookielength'] <= 525600))
- $modSettings['cookieTime'] = (int) $_POST['cookielength'];
- loadLanguage('Login');
- // Load the template stuff - wireless or normal.
- if (WIRELESS)
- $context['sub_template'] = WIRELESS_PROTOCOL . '_login';
- else
- {
- loadTemplate('Login');
- $context['sub_template'] = 'login';
- }
- // Set up the default/fallback stuff.
- $context['default_username'] = isset($_POST['user']) ? preg_replace('~&#(\\d{1,7}|x[0-9a-fA-F]{1,6});~', '&#\\1;', htmlspecialchars($_POST['user'])) : '';
- $context['default_password'] = '';
- $context['never_expire'] = $modSettings['cookieTime'] == 525600 || $modSettings['cookieTime'] == 3153600;
- $context['login_errors'] = array($txt['error_occured']);
- $context['page_title'] = $txt['login'];
- // Add the login chain to the link tree.
- $context['linktree'][] = array(
- 'url' => $scripturl . '?action=login',
- 'name' => $txt['login'],
- );
- if (!empty($_POST['openid_identifier']) && !empty($modSettings['enableOpenID']))
- {
- require_once($sourcedir . '/Subs-OpenID.php');
- if (($open_id = smf_openID_validate($_POST['openid_identifier'])) !== 'no_data')
- return $open_id;
- }
- // You forgot to type your username, dummy!
- if (!isset($_POST['user']) || $_POST['user'] == '')
- {
- $context['login_errors'] = array($txt['need_username']);
- return;
- }
- // Hmm... maybe 'admin' will login with no password. Uhh... NO!
- if ((!isset($_POST['passwrd']) || $_POST['passwrd'] == '') && (!isset($_POST['hash_passwrd']) || strlen($_POST['hash_passwrd']) != 40))
- {
- $context['login_errors'] = array($txt['no_password']);
- return;
- }
- // No funky symbols either.
- if (preg_match('~[<>&"\'=\\\]~', preg_replace('~(&#(\\d{1,7}|x[0-9a-fA-F]{1,6});)~', '', $_POST['user'])) != 0)
- {
- $context['login_errors'] = array($txt['error_invalid_characters_username']);
- return;
- }
- // Are we using any sort of integration to validate the login?
- 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))
- {
- $context['login_errors'] = array($txt['login_hash_error']);
- $context['disable_login_hashing'] = true;
- return;
- }
- // Load the data up!
- $request = $smcFunc['db_query']('', '
- SELECT passwd, id_member, id_group, lngfile, is_activated, email_address, additional_groups, member_name, password_salt,
- openid_uri, passwd_flood
- FROM {db_prefix}members
- WHERE ' . ($smcFunc['db_case_sensitive'] ? 'LOWER(member_name) = LOWER({string:user_name})' : 'member_name = {string:user_name}') . '
- LIMIT 1',
- array(
- 'user_name' => $smcFunc['db_case_sensitive'] ? strtolower($_POST['user']) : $_POST['user'],
- )
- );
- // Probably mistyped or their email, try it as an email address. (member_name first, though!)
- if ($smcFunc['db_num_rows']($request) == 0 && strpos($_POST['user'], '@') !== false)
- {
- $smcFunc['db_free_result']($request);
- $request = $smcFunc['db_query']('', '
- SELECT passwd, id_member, id_group, lngfile, is_activated, email_address, additional_groups, member_name, password_salt, openid_uri,
- passwd_flood
- FROM {db_prefix}members
- WHERE email_address = {string:user_name}
- LIMIT 1',
- array(
- 'user_name' => $_POST['user'],
- )
- );
- }
- // Let them try again, it didn't match anything...
- if ($smcFunc['db_num_rows']($request) == 0)
- {
- $context['login_errors'] = array($txt['username_no_exist']);
- return;
- }
- $user_settings = $smcFunc['db_fetch_assoc']($request);
- $smcFunc['db_free_result']($request);
- // Figure out the password using SMF's encryption - if what they typed is right.
- if (isset($_POST['hash_passwrd']) && strlen($_POST['hash_passwrd']) == 40)
- {
- // Needs upgrading?
- if (strlen($user_settings['passwd']) != 40)
- {
- $context['login_errors'] = array($txt['login_hash_error']);
- $context['disable_login_hashing'] = true;
- unset($user_settings);
- return;
- }
- // Challenge passed.
- elseif ($_POST['hash_passwrd'] == sha1($user_settings['passwd'] . $sc . $tk))
- $sha_passwd = $user_settings['passwd'];
- else
- {
- // Don't allow this!
- validatePasswordFlood($user_settings['id_member'], $user_settings['passwd_flood']);
- $_SESSION['failed_login'] = isset($_SESSION['failed_login']) ? ($_SESSION['failed_login'] + 1) : 1;
- if ($_SESSION['failed_login'] >= $modSettings['failed_login_threshold'])
- redirectexit('action=reminder');
- else
- {
- log_error($txt['incorrect_password'] . ' - <span class="remove">' . $user_settings['member_name'] . '</span>', 'user');
- $context['disable_login_hashing'] = true;
- $context['login_errors'] = array($txt['incorrect_password']);
- unset($user_settings);
- return;
- }
- }
- }
- else
- $sha_passwd = sha1(strtolower($user_settings['member_name']) . un_htmlspecialchars($_POST['passwrd']));
- // Bad password! Thought you could fool the database?!
- if ($user_settings['passwd'] != $sha_passwd)
- {
- // Let's be cautious, no hacking please. thanx.
- validatePasswordFlood($user_settings['id_member'], $user_settings['passwd_flood']);
- // Maybe we were too hasty... let's try some other authentication methods.
- $other_passwords = array();
- // None of the below cases will be used most of the time (because the salt is normally set.)
- if (!empty($modSettings['enable_password_conversion']) && $user_settings['password_salt'] == '')
- {
- // YaBB SE, Discus, MD5 (used a lot), SHA-1 (used some), SMF 1.0.x, IkonBoard, and none at all.
- $other_passwords[] = crypt($_POST['passwrd'], substr($_POST['passwrd'], 0, 2));
- $other_passwords[] = crypt($_POST['passwrd'], substr($user_settings['passwd'], 0, 2));
- $other_passwords[] = md5($_POST['passwrd']);
- $other_passwords[] = sha1($_POST['passwrd']);
- $other_passwords[] = md5_hmac($_POST['passwrd'], strtolower($user_settings['member_name']));
- $other_passwords[] = md5($_POST['passwrd'] . strtolower($user_settings['member_name']));
- $other_passwords[] = md5(md5($_POST['passwrd']));
- $other_passwords[] = $_POST['passwrd'];
- // This one is a strange one... MyPHP, crypt() on the MD5 hash.
- $other_passwords[] = crypt(md5($_POST['passwrd']), md5($_POST['passwrd']));
- // Snitz style - SHA-256. Technically, this is a downgrade, but most PHP configurations don't support sha256 anyway.
- if (strlen($user_settings['passwd']) == 64 && function_exists('mhash') && defined('MHASH_SHA256'))
- $other_passwords[] = bin2hex(mhash(MHASH_SHA256, $_POST['passwrd']));
- // phpBB3 users new hashing. We now support it as well ;).
- $other_passwords[] = phpBB3_password_check($_POST['passwrd'], $user_settings['passwd']);
- // APBoard 2 Login Method.
- $other_passwords[] = md5(crypt($_POST['passwrd'], 'CRYPT_MD5'));
- }
- // The hash should be 40 if it's SHA-1, so we're safe with more here too.
- elseif (!empty($modSettings['enable_password_conversion']) && strlen($user_settings['passwd']) == 32)
- {
- // vBulletin 3 style hashing? Let's welcome them with open arms \o/.
- $other_passwords[] = md5(md5($_POST['passwrd']) . stripslashes($user_settings['password_salt']));
- // Hmm.. p'raps it's Invision 2 style?
- $other_passwords[] = md5(md5($user_settings['password_salt']) . md5($_POST['passwrd']));
- // Some common md5 ones.
- $other_passwords[] = md5($user_settings['password_salt'] . $_POST['passwrd']);
- $other_passwords[] = md5($_POST['passwrd'] . $user_settings['password_salt']);
- }
- elseif (strlen($user_settings['passwd']) == 40)
- {
- // Maybe they are using a hash from before the password fix.
- $other_passwords[] = sha1(strtolower($user_settings['member_name']) . un_htmlspecialchars($_POST['passwrd']));
- // BurningBoard3 style of hashing.
- if (!empty($modSettings['enable_password_conversion']))
- $other_passwords[] = sha1($user_settings['password_salt'] . sha1($user_settings['password_salt'] . sha1($_POST['passwrd'])));
- // Perhaps we converted to UTF-8 and have a valid password being hashed differently.
- if ($context['character_set'] == 'utf8' && !empty($modSettings['previousCharacterSet']) && $modSettings['previousCharacterSet'] != 'utf8')
- {
- // Try iconv first, for no particular reason.
- if (function_exists('iconv'))
- $other_passwords['iconv'] = sha1(strtolower(iconv('UTF-8', $modSettings['previousCharacterSet'], $user_settings['member_name'])) . un_htmlspecialchars(iconv('UTF-8', $modSettings['previousCharacterSet'], $_POST['passwrd'])));
- // Say it aint so, iconv failed!
- if (empty($other_passwords['iconv']) && function_exists('mb_convert_encoding'))
- $other_passwords[] = sha1(strtolower(mb_convert_encoding($user_settings['member_name'], 'UTF-8', $modSettings['previousCharacterSet'])) . un_htmlspecialchars(mb_convert_encoding($_POST['passwrd'], 'UTF-8', $modSettings['previousCharacterSet'])));
- }
- }
- // SMF's sha1 function can give a funny result on Linux (Not our fault!). If we've now got the real one let the old one be valid!
- if (stripos(PHP_OS, 'win') !== 0)
- {
- require_once($sourcedir . '/Subs-Compat.php');
- $other_passwords[] = sha1_smf(strtolower($user_settings['member_name']) . un_htmlspecialchars($_POST['passwrd']));
- }
- // Allows mods to easily extend the $other_passwords array
- call_integration_hook('integrate_other_passwords', array(&$other_passwords));
- // Whichever encryption it was using, let's make it use SMF's now ;).
- if (in_array($user_settings['passwd'], $other_passwords))
- {
- $user_settings['passwd'] = $sha_passwd;
- $user_settings['password_salt'] = substr(md5(mt_rand()), 0, 4);
- // Update the password and set up the hash.
- updateMemberData($user_settings['id_member'], array('passwd' => $user_settings['passwd'], 'password_salt' => $user_settings['password_salt'], 'passwd_flood' => ''));
- }
- // Okay, they for sure didn't enter the password!
- else
- {
- // They've messed up again - keep a count to see if they need a hand.
- $_SESSION['failed_login'] = isset($_SESSION['failed_login']) ? ($_SESSION['failed_login'] + 1) : 1;
- // Hmm... don't remember it, do you? Here, try the password reminder ;).
- if ($_SESSION['failed_login'] >= $modSettings['failed_login_threshold'])
- redirectexit('action=reminder');
- // We'll give you another chance...
- else
- {
- // Log an error so we know that it didn't go well in the error log.
- log_error($txt['incorrect_password'] . ' - <span class="remove">' . $user_settings['member_name'] . '</span>', 'user');
- $context['login_errors'] = array($txt['incorrect_password']);
- return;
- }
- }
- }
- 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();
- }
- /**
- * Check activation status of the current user.
- */
- 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;
- }
- /**
- * Perform the logging in. (set cookie, call hooks, etc)
- */
- function DoLogin()
- {
- global $user_info, $user_settings, $smcFunc;
- global $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'],
- )
- );
- $_SESSION['log_time'] = 0;
- // Log this entry, only if we have it enabled.
- if (!empty($modSettings['loginHistoryDays']))
- $smcFunc['db_insert']('insert',
- '{db_prefix}member_logins',
- array(
- 'id_member' => 'int', 'time' => 'int', 'ip' => 'string', 'ip2' => 'string',
- ),
- array(
- $user_info['id'], time(), $user_info['ip'], $user_info['ip2']
- ),
- array(
- 'id_member', 'time'
- )
- );
- // Just log you back out if it's in maintenance mode and you AREN'T an admin.
- if (empty($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']);
- }
- /**
- * Logs the current user out of their account.
- * It requires that the session hash is sent as well, to prevent automatic logouts by images or javascript.
- * It redirects back to $_SESSION['logout_url'], if it exists.
- * It is accessed via ?action=logout;session_var=...
- *
- * @param bool $internal if true, it doesn't check the session
- * @param $redirect
- */
- function Logout($internal = false, $redirect = true)
- {
- global $sourcedir, $user_info, $user_settings, $context, $smcFunc;
- // Make sure they aren't being auto-logged out.
- if (!$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'],
- )
- );
- }
- $_SESSION['log_time'] = 0;
- // Empty the cookie! (set it in the past, and for id_member = 0)
- setLoginCookie(-3600, 0);
- // Off to the merry board index we go!
- if ($redirect)
- {
- if (empty($_SESSION['logout_url']))
- redirectexit('', $context['server']['needs_login_fix']);
- elseif (!empty($_SESSION['logout_url']) && (strpos('http://', $_SESSION['logout_url']) === false && strpos('https://', $_SESSION['logout_url']) === false))
- {
- unset ($_SESSION['logout_url']);
- redirectexit();
- }
- else
- {
- $temp = $_SESSION['logout_url'];
- unset($_SESSION['logout_url']);
- redirectexit($temp, $context['server']['needs_login_fix']);
- }
- }
- }
- /**
- * MD5 Encryption used for older passwords. (SMF 1.0.x/YaBB SE 1.5.x hashing)
- *
- * @param string $data
- * @param string $key
- * @return string, the HMAC MD5 of data with key
- */
- function md5_hmac($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)));
- }
- /**
- * Custom encryption for phpBB3 based passwords.
- *
- * @param string $passwd
- * @param string $passwd_hash
- * @return string
- */
- function phpBB3_password_check($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);
- $hash = md5($salt . $passwd, true);
- for (; $count != 0; --$count)
- $hash = md5($hash . $passwd, true);
- $output = substr($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!
- *
- * @param $id_member
- * @param $password_flood_value = false
- * @param $was_correct = false
- */
- function validatePasswordFlood($id_member, $password_flood_value = false, $was_correct = false)
- {
- global $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));
- }
- ?>
|