feat: better config for sniffer

component/sniffer/base_sniffer.go

@@ -0,0 +1,52 @@
+package sniffer
+
+import (
+	"errors"
+
+	"github.com/Dreamacro/clash/common/utils"
+	"github.com/Dreamacro/clash/constant"
+	"github.com/Dreamacro/clash/constant/sniffer"
+)
+
+type SnifferConfig struct {
+	Ports []utils.Range[uint16]
+}
+
+type BaseSniffer struct {
+	ports              []utils.Range[uint16]
+	supportNetworkType constant.NetWork
+}
+
+// Protocol implements sniffer.Sniffer
+func (*BaseSniffer) Protocol() string {
+	return "unknown"
+}
+
+// SniffTCP implements sniffer.Sniffer
+func (*BaseSniffer) SniffTCP(bytes []byte) (string, error) {
+	return "", errors.New("TODO")
+}
+
+// SupportNetwork implements sniffer.Sniffer
+func (bs *BaseSniffer) SupportNetwork() constant.NetWork {
+	return bs.supportNetworkType
+}
+
+// SupportPort implements sniffer.Sniffer
+func (bs *BaseSniffer) SupportPort(port uint16) bool {
+	for _, portRange := range bs.ports {
+		if portRange.Contains(port) {
+			return true
+		}
+	}
+	return false
+}
+
+func NewBaseSniffer(ports []utils.Range[uint16], networkType constant.NetWork) *BaseSniffer {
+	return &BaseSniffer{
+		ports:              ports,
+		supportNetworkType: networkType,
+	}
+}
+
+var _ sniffer.Sniffer = (*BaseSniffer)(nil)