fix accesslog and serialization

internal/net/types/cidr.go

@@ -2,6 +2,33 @@ package types
 
 import (
 	"net"
+	"strings"
 )
 
-type CIDR = net.IPNet
+//nolint:recvcheck
+type CIDR net.IPNet
+
+func (cidr *CIDR) Parse(v string) error {
+	if !strings.Contains(v, "/") {
+		v += "/32" // single IP
+	}
+	_, ipnet, err := net.ParseCIDR(v)
+	if err != nil {
+		return err
+	}
+	cidr.IP = ipnet.IP
+	cidr.Mask = ipnet.Mask
+	return nil
+}
+
+func (cidr CIDR) Contains(ip net.IP) bool {
+	return (*net.IPNet)(&cidr).Contains(ip)
+}
+
+func (cidr CIDR) String() string {
+	return (*net.IPNet)(&cidr).String()
+}
+
+func (cidr CIDR) MarshalText() ([]byte, error) {
+	return []byte(cidr.String()), nil
+}