test('/^[a-zA-Z_]+$/')) { return $user_defined_header; } return null; } public static function user_agent() { return $_SERVER['HTTP_USER_AGENT']; } public static function is_ip_address_blocked() : bool { $blocked_ips = \IAWPSCOPED\iawp()->get_option('iawp_blocked_ips', []); // No address could be blocked if (\count($blocked_ips) == 0) { return \false; } $visitor_address = Factory::parseAddressString(self::ip()); // We cannot block invalid ip addresses if ($visitor_address === null) { return \false; } foreach ($blocked_ips as $blocked_ip) { $blocked_range = Factory::parseRangeString($blocked_ip); // We cannot check an ip address against an invalid range if ($blocked_range === null) { continue; } // If the address matches this particular blocked range, then the ip address is indeed blocked if ($blocked_range->contains($visitor_address)) { return \true; } } return \false; } /** * @return string[] */ public static function ip_headers() : array { return ['HTTP_X_FORWARDED_FOR', 'HTTP_X_FORWARDED', 'HTTP_FORWARDED_FOR', 'HTTP_FORWARDED', 'REMOTE_ADDR', 'HTTP_CF_CONNECTING_IP', 'HTTP_CLIENT_IP', 'HTTP_INCAP_CLIENT_IP', 'HTTP_CF_CONNECTING_IP']; } public static function is_blocked_user_role() : bool { $blocked_roles = \IAWPSCOPED\iawp()->get_option('iawp_blocked_roles', ['administrator']); foreach (\wp_get_current_user()->roles as $visitor_role) { if (\in_array($visitor_role, $blocked_roles)) { return \true; } } return \false; } private static function scheme() { if (!empty($_SERVER['REQUEST_SCHEME']) && $_SERVER['REQUEST_SCHEME'] == 'https' || !empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] == 'on' || !empty($_SERVER['SERVER_PORT']) && $_SERVER['SERVER_PORT'] == '443') { return 'https'; } else { return 'http'; } } private static function url() { if (!empty($_SERVER['HTTP_HOST']) && !empty($_SERVER['REQUEST_URI'])) { return \esc_url_raw(self::scheme() . '://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI']); } else { return null; } } }