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nnet/protocol/nnet/client_pipeline_nnet.go

66 lines
1.5 KiB
Go

package nnet
import (
"encoding/json"
"errors"
"fmt"
"git.noahlan.cn/noahlan/nnet"
"git.noahlan.cn/noahlan/nnet/connection"
"git.noahlan.cn/noahlan/nnet/packet"
"git.noahlan.cn/noahlan/ntool/nlog"
)
type OnReadyFunc func()
func WithNNetClientPipeline(onReady OnReadyFunc, packer packet.Packer) nnet.RunOption {
return func(ngin *nnet.Engine) {
ngin.Pipeline().Inbound().PushFront(func(conn *connection.Connection, v any) error {
pkg, ok := v.(*Packet)
if !ok {
return packet.ErrWrongPacketType
}
nc, _ := conn.Conn()
// Server to client
switch pkg.PacketType {
case Handshake:
var handshakeData HandshakeResp
err := json.Unmarshal(pkg.Data, &handshakeData)
nlog.Must(err)
hrd, _ := packer.Pack(Header{
PacketType: HandshakeAck,
MessageHeader: MessageHeader{},
}, nil)
if err := conn.SendBytes(hrd); err != nil {
return err
}
conn.SetStatus(connection.StatusWorking)
// onReady
if onReady != nil {
onReady()
}
nlog.Debugf("connection handshake Id=%d, Remote=%s", conn.Session().ID(), nc.RemoteAddr())
case Kick:
_ = conn.Close()
case Data:
status := conn.Status()
if status != connection.StatusWorking {
return errors.New(fmt.Sprintf("receive data on socket which not yet ACK, session will be closed immediately, remote=%s",
nc.RemoteAddr()))
}
var lastMid uint64
switch pkg.MsgType {
case Response:
lastMid = pkg.ID
case Notify:
lastMid = 0
}
conn.SetLastMID(lastMid)
}
return nil
})
}
}