func()

in remoteip/parser.go [127:156]

• 21 lines of code
• 7 McCabe index (conditional complexity)

func (p *RemoteIPParser) parseIP(addr string) string {
	// Trim whitespace
	addr = strings.TrimSpace(addr)
	if addr == "" {
		return ""
	}

	// Try to use SplitHostPort to handle IP:port format
	host := addr
	h, _, err := net.SplitHostPort(addr)
	if err == nil {
		host = h
	} else if strings.HasPrefix(addr, "[") && strings.HasSuffix(addr, "]") {
		// Could be IPv6 with brackets but no port: "[IPv6]"
		host = addr[1 : len(addr)-1]
	}

	// Parse the IP address
	ip := net.ParseIP(host)
	if ip == nil {
		return ""
	}

	// Check if it has a netmask by looking for slash
	if strings.Contains(addr, "/") {
		return "" // Reject CIDR notation
	}

	return ip.String()
}