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<?php /** * WP fail2ban core * * @package wp-fail2ban * @since 4.3.0 */ namespace org\lecklider\charles\wordpress\wp_fail2ban\core; use function org\lecklider\charles\wordpress\wp_fail2ban\openlog; use function org\lecklider\charles\wordpress\wp_fail2ban\syslog; use function org\lecklider\charles\wordpress\wp_fail2ban\closelog; defined('ABSPATH') or exit; /** * Catch empty usernames * * @see \wp_authenticate() * * @since 4.3.0 * * @param mixed|null $user * @param string $username * @param string $password * * @return mixed|null * * @wp-f2b-soft Empty username */ function authenticate($user, $username, $password) { if (empty($username) && isset($_POST['log'])) { if (openlog()) { syslog(LOG_NOTICE, 'Empty username'); closelog(); } do_action(__FUNCTION__, $user, $username, $password); } return $user; } /** * Hook: wp_login * * @since 4.3.0 Add action * @since 4.1.0 Add REST support * @since 3.5.0 Refactored for unit testing * @since 1.0.0 * * @param string $user_login * @param mixed $user * * @codeCoverageIgnore */ function wp_login($user_login, $user) { if (openlog()) { syslog(LOG_INFO, "Accepted password for {$user_login}"); closelog(); } do_action(__FUNCTION__, $user_login, $user); } /** * Hook: wp_login_failed * * @since 4.3.0.5 Handle empty username * @since 4.3.0 Add action * @since 4.2.4 Add message filter * @since 4.2.0 Change username check * @since 4.1.0 Add REST support * @since 3.5.0 Refactored for unit testing * @since 1.0.0 * * @param string $username * * @wp-f2b-hard Authentication attempt for unknown user .* * @wp-f2b-hard REST authentication attempt for unknown user .* * @wp-f2b-hard XML-RPC authentication attempt for unknown user .* * @wp-f2b-soft Authentication failure for .* * @wp-f2b-soft REST authentication failure for .* * @wp-f2b-soft XML-RPC authentication failure for .* */ function wp_login_failed($username) { $username = trim($username); if (empty($username)) { $msg = 'Empty username'; $filter = '::empty'; } else { global $wp_xmlrpc_server; if (defined('REST_REQUEST')) { $msg = 'REST a'; $filter = '::REST'; } elseif ($wp_xmlrpc_server) { $msg = 'XML-RPC a'; $filter = '::XML-RPC'; } else { $msg = 'A'; $filter = ''; } $msg .= (wp_cache_get($username, 'useremail') || wp_cache_get(sanitize_user($username), 'userlogins')) ? "uthentication failure for {$username}" : "uthentication attempt for unknown user {$username}"; } $msg = apply_filters("wp_fail2ban::wp_login_failed{$filter}", $msg); if (openlog()) { syslog(LOG_NOTICE, $msg); closelog(); } do_action(__FUNCTION__, $username); }
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