Add login and status clients with modular compression handling

modules/login.go

@@ -0,0 +1,66 @@
+package modules
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+	"strom"
+
+	"github.com/admin-else/queser"
+	"github.com/admin-else/queser/data"
+	"github.com/admin-else/queser/generated/v1_21_8"
+	"github.com/google/uuid"
+)
+
+type Account struct {
+	Username string
+	UUID     uuid.UUID
+	Token    string
+}
+type LoginClient struct {
+	*strom.Connection
+	Account Account
+}
+
+func (s *LoginClient) Default(event any) (err error) {
+	err = fmt.Errorf("unexpected event: %T%v", event, event)
+	return
+}
+
+func (s *LoginClient) OnStart(_ strom.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: queser.VarInt(versionData.Version),
+		ServerHost:      parts[0],
+		ServerPort:      uint16(port),
+		NextState:       queser.VarInt(queser.Login),
+	})
+	if err != nil {
+		return
+	}
+	s.State = queser.Login
+	err = s.Send(v1_21_8.LoginToServerPacketLoginStart{Username: s.Account.Username, PlayerUUID: s.Account.UUID})
+	return
+}
+
+func (s *LoginClient) OnCompress(compress v1_21_8.LoginToClientPacketCompress) (err error) {
+	s.CompressionThreshold = int32(compress.Threshold)
+	return
+}
+
+func (s *LoginClient) OnSuccess(success v1_21_8.LoginToClientPacketSuccess) (err error) {
+	err = s.Send(v1_21_8.LoginToServerPacketLoginAcknowledged{})
+	if err != nil {
+		return
+	}
+	s.State = queser.Configuration
+	return
+}

modules/status.go

@@ -0,0 +1,52 @@
+package modules
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+	"strom"
+
+	"github.com/admin-else/queser"
+	"github.com/admin-else/queser/data"
+	"github.com/admin-else/queser/generated/v1_21_8"
+)
+
+type StatusClient struct {
+	*strom.Connection
+	Status string
+}
+
+func (s *StatusClient) Default(event any) (err error) {
+	err = fmt.Errorf("unexpected event: %v", event)
+	return
+}
+
+func (s *StatusClient) OnStart(_ strom.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: queser.VarInt(versionData.Version),
+		ServerHost:      parts[0],
+		ServerPort:      uint16(port),
+		NextState:       queser.VarInt(queser.Status),
+	})
+	if err != nil {
+		return
+	}
+	s.State = queser.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 = strom.HandlerDone
+	return
+}