yess

client/modules/status.go

@@ -0,0 +1,54 @@
+package modules
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+
+	"github.com/admin-else/strom/event"
+	"github.com/admin-else/strom/proto"
+	"github.com/admin-else/strom/proto_base"
+
+	"github.com/admin-else/strom/data"
+	"github.com/admin-else/strom/proto_generated/v1_21_8"
+)
+
+type StatusClient struct {
+	*proto.Conn
+	Status string
+}
+
+func (s *StatusClient) Default(event any) (err error) {
+	err = fmt.Errorf("unexpected event: %v", event)
+	return
+}
+
+func (s *StatusClient) OnStart(_ event.OnStart) (err error) {
+	parts := strings.Split(s.RemoteAddr().String(), ":")
+	versionData, err := data.LookUpProtocolVersionByName(s.Version)
+	if err != nil {
+		return
+	}
+	port, err := strconv.Atoi(parts[1])
+	if err != nil {
+		return
+	}
+	err = s.Send(v1_21_8.HandshakingToServerPacketSetProtocol{
+		ProtocolVersion: proto_base.VarInt(versionData.Version),
+		ServerHost:      parts[0],
+		ServerPort:      uint16(port),
+		NextState:       proto_base.VarInt(proto_base.Status),
+	})
+	if err != nil {
+		return
+	}
+	s.State = proto_base.Status
+	err = s.Send(v1_21_8.StatusToServerPacketPingStart{})
+	return
+}
+
+func (s *StatusClient) OnStatus(p v1_21_8.StatusToClientPacketServerInfo) (err error) {
+	s.Status = p.Response
+	err = event.HandlerDone
+	return
+}