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<?php /** * Blocked user functionality * * @package wp-fail2ban * @since 4.0.0 */ namespace org\lecklider\charles\wordpress\wp_fail2ban\feature; use function org\lecklider\charles\wordpress\wp_fail2ban\bail; 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 blocked users * * @see \wp_authenticate() * * @since 4.3.0 Add blocking username logins * @since 3.5.0 Refactored for unit testing * @since 2.0.0 * * @param mixed|null $user * @param string $username * @param string $password * * @return mixed|null * * @wp-f2b-hard Blocked authentication attempt for .* * @wp-f2b-hard Blocked username authentication attempt for .* */ function block_users($user, $username, $password) { if (!empty($username)) { if (defined('WP_FAIL2BAN_BLOCK_USERNAME_LOGIN') && WP_FAIL2BAN_BLOCK_USERNAME_LOGIN) { if (is_email($username)) { // OK! } else { if (openlog()) { syslog(LOG_NOTICE, "Blocked username authentication attempt for {$username}"); closelog(); } do_action(__FUNCTION__.'.block_username_login', $user, $username, $password); return bail(); // for testing } } if (defined('WP_FAIL2BAN_BLOCKED_USERS') && !empty(WP_FAIL2BAN_BLOCKED_USERS)) { /** * @since 3.5.0 Arrays allowed in PHP 7 */ $matched = (is_array(WP_FAIL2BAN_BLOCKED_USERS)) ? in_array($username, WP_FAIL2BAN_BLOCKED_USERS) : preg_match('/'.WP_FAIL2BAN_BLOCKED_USERS.'/i', $username); if ($matched) { if (openlog()) { syslog(LOG_NOTICE, "Blocked authentication attempt for {$username}"); closelog(); } do_action(__FUNCTION__.'.blocked_users', $user, $username, $password); return bail(); // for testing } } } return $user; }
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