refactor

pkg/geoip/iputil/iputil.go

@@ -1,66 +0,0 @@
-package iputil
-
-import (
-	"net"
-	"strings"
-)
-
-func NormalizeIP(raw string) string {
-	trimmed := strings.TrimSpace(raw)
-	if trimmed == "" {
-		return ""
-	}
-	ip := net.ParseIP(trimmed)
-	if ip == nil {
-		return ""
-	}
-	if ipv4 := ip.To4(); ipv4 != nil {
-		return ipv4.String()
-	}
-	return ip.String()
-}
-
-func NormalizeRemoteAddr(remoteAddr string) string {
-	trimmed := strings.TrimSpace(remoteAddr)
-	if trimmed == "" {
-		return ""
-	}
-	if host, _, err := net.SplitHostPort(trimmed); err == nil {
-		return NormalizeIP(host)
-	}
-	return NormalizeIP(trimmed)
-}
-
-func IsPublic(ip net.IP) bool {
-	if ip == nil {
-		return false
-	}
-	if ipv4 := ip.To4(); ipv4 != nil {
-		ip = ipv4
-	}
-	if !ip.IsGlobalUnicast() || ip.IsLoopback() || ip.IsPrivate() || ip.IsLinkLocalUnicast() || ip.IsMulticast() || ip.IsUnspecified() {
-		return false
-	}
-	return true
-}
-
-func IsPublicString(raw string) bool {
-	ip := net.ParseIP(strings.TrimSpace(raw))
-	return IsPublic(ip)
-}
-
-func Score(ip net.IP) int {
-	if ip == nil {
-		return -1
-	}
-	if ipv4 := ip.To4(); ipv4 != nil {
-		ip = ipv4
-	}
-	if !ip.IsGlobalUnicast() || ip.IsLoopback() || ip.IsMulticast() || ip.IsUnspecified() {
-		return -1
-	}
-	if IsPublic(ip) {
-		return 2
-	}
-	return 1
-}