You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
86 lines
2.1 KiB
Go
86 lines
2.1 KiB
Go
package nnet
|
|
|
|
import (
|
|
"encoding/json"
|
|
"git.noahlan.cn/noahlan/nnet"
|
|
"git.noahlan.cn/noahlan/nnet/conn"
|
|
"git.noahlan.cn/noahlan/nnet/event"
|
|
"git.noahlan.cn/noahlan/nnet/packet"
|
|
"git.noahlan.cn/noahlan/ntool/nlog"
|
|
)
|
|
|
|
type (
|
|
HandshakeValidatorFunc func(*HandshakeReq) error
|
|
HandshakeAckPayloadFunc func() any
|
|
)
|
|
|
|
func withNNetEvents(
|
|
handshakeResp *HandshakeResp,
|
|
validator HandshakeValidatorFunc,
|
|
packer packet.Packer,
|
|
) nnet.RunOption {
|
|
return func(ngin *nnet.Engine) {
|
|
ngin.EventManager().RegisterEventFront(event.EvtOnReceive, onServerReceiveEvent(handshakeResp, validator, packer))
|
|
}
|
|
}
|
|
|
|
func onServerReceiveEvent(
|
|
handshakeResp *HandshakeResp,
|
|
validator HandshakeValidatorFunc,
|
|
packer packet.Packer, ) event.OnReceiveFn {
|
|
return func(nc *conn.Connection, p packet.IPacket) {
|
|
pkg, ok := p.(*Packet)
|
|
if !ok {
|
|
nlog.Error(packet.ErrWrongPacketType)
|
|
return
|
|
}
|
|
switch pkg.PacketType {
|
|
case Handshake:
|
|
var handshakeData HandshakeReq
|
|
err := json.Unmarshal(pkg.Data, &handshakeData)
|
|
nlog.Must(err)
|
|
|
|
if err := validator(&handshakeData); err != nil {
|
|
nlog.Error(err)
|
|
return
|
|
}
|
|
handshakeResp.Payload = handshakeData.Payload
|
|
|
|
data, err := json.Marshal(handshakeResp)
|
|
nlog.Must(err)
|
|
|
|
hrd, _ := packer.Pack(Header{
|
|
PacketType: Handshake,
|
|
MessageHeader: MessageHeader{},
|
|
}, data)
|
|
if err := nc.SendBytes(hrd); err != nil {
|
|
nlog.Error(err)
|
|
return
|
|
}
|
|
nc.SetStatus(conn.StatusPrepare)
|
|
nlog.Debugf("connection handshake Id=%d, Remote=%s", nc.Session().ID(), nc.Conn().RemoteAddr())
|
|
case HandshakeAck:
|
|
nc.SetStatus(conn.StatusPending)
|
|
nlog.Debugf("receive handshake ACK Id=%d, Remote=%s", nc.Session().ID(), nc.Conn().RemoteAddr())
|
|
case Data:
|
|
if nc.Status() < conn.StatusPending {
|
|
nlog.Errorf("receive data on socket which not yet ACK, session will be closed immediately, remote=%s",
|
|
nc.Conn().RemoteAddr())
|
|
return
|
|
}
|
|
nc.SetStatus(conn.StatusWorking)
|
|
|
|
var lastMid uint64
|
|
switch pkg.MsgType {
|
|
case Request:
|
|
lastMid = pkg.ID
|
|
case Notify:
|
|
lastMid = 0
|
|
default:
|
|
nlog.Errorf("Invalid message type: %s ", pkg.MsgType.String())
|
|
}
|
|
nc.SetLastMID(lastMid)
|
|
}
|
|
}
|
|
}
|