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server: refactoring; start support for variadic packets

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This commit is contained in:
CPunch 2023-03-10 23:59:13 -06:00
parent d60638d555
commit 00fa94162c
3 changed files with 71 additions and 58 deletions
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53
server/login.go
View File

@ -35,7 +35,7 @@ func (server *LoginServer) AcceptLogin(peer *Peer, SzID string, IClientVerC int3
UiSvrTime: uint64(time.Now().Unix()),
}
if err := peer.Send(resp, protocol.P_LS2CL_REP_LOGIN_SUCC); err != nil {
if err := peer.Send(protocol.P_LS2CL_REP_LOGIN_SUCC, resp); err != nil {
return err
}
@ -53,7 +53,7 @@ func (server *LoginServer) AcceptLogin(peer *Peer, SzID string, IClientVerC int3
// send characters (if any)
for i := 0; i < len(data); i++ {
if err := peer.Send(&data[i], protocol.P_LS2CL_REP_CHAR_INFO); err != nil {
if err := peer.Send(protocol.P_LS2CL_REP_CHAR_INFO, &data[i]); err != nil {
return err
}
}
@ -66,10 +66,10 @@ func (server *LoginServer) Login(peer *Peer, pkt protocol.Packet) error {
pkt.Decode(&loginPkt)
SendError := func(e int32) {
peer.Send(&protocol.SP_LS2CL_REP_LOGIN_FAIL{
peer.Send(protocol.P_LS2CL_REP_LOGIN_FAIL, &protocol.SP_LS2CL_REP_LOGIN_FAIL{
IErrorCode: e,
SzID: loginPkt.SzID,
}, protocol.P_LS2CL_REP_LOGIN_FAIL)
})
}
// client is resending a login packet??
@ -137,10 +137,10 @@ func (server *LoginServer) CheckCharacterName(peer *Peer, pkt protocol.Packet) e
pkt.Decode(&charPkt)
// just auto accept, client resends this data later
return peer.Send(&protocol.SP_LS2CL_REP_CHECK_CHAR_NAME_SUCC{
return peer.Send(protocol.P_LS2CL_REP_CHECK_CHAR_NAME_SUCC, &protocol.SP_LS2CL_REP_CHECK_CHAR_NAME_SUCC{
SzFirstName: charPkt.SzFirstName,
SzLastName: charPkt.SzLastName,
}, protocol.P_LS2CL_REP_CHECK_CHAR_NAME_SUCC)
})
}
func (server *LoginServer) SaveCharacterName(peer *Peer, pkt protocol.Packet) error {
@ -148,24 +148,24 @@ func (server *LoginServer) SaveCharacterName(peer *Peer, pkt protocol.Packet) er
pkt.Decode(&charPkt)
if peer.AccountID == -1 {
peer.Send(&protocol.SP_LS2CL_REP_SAVE_CHAR_NAME_FAIL{}, protocol.P_LS2CL_REP_SAVE_CHAR_NAME_FAIL)
peer.Send(protocol.P_LS2CL_REP_SAVE_CHAR_NAME_FAIL, &protocol.SP_LS2CL_REP_SAVE_CHAR_NAME_FAIL{})
return fmt.Errorf("Out of order P_LS2CL_REP_SAVE_CHAR_NAME_FAIL!")
}
// TODO: sanity check SzFirstName && SzLastName
PlayerID, err := db.DefaultDB.NewPlayer(peer.AccountID, charPkt.SzFirstName, charPkt.SzLastName, int(charPkt.ISlotNum))
if err != nil {
peer.Send(&protocol.SP_LS2CL_REP_SAVE_CHAR_NAME_FAIL{}, protocol.P_LS2CL_REP_SAVE_CHAR_NAME_FAIL)
peer.Send(protocol.P_LS2CL_REP_SAVE_CHAR_NAME_FAIL, &protocol.SP_LS2CL_REP_SAVE_CHAR_NAME_FAIL{})
return err
}
return peer.Send(&protocol.SP_LS2CL_REP_SAVE_CHAR_NAME_SUCC{
return peer.Send(protocol.P_LS2CL_REP_SAVE_CHAR_NAME_SUCC, &protocol.SP_LS2CL_REP_SAVE_CHAR_NAME_SUCC{
IPC_UID: int64(PlayerID),
ISlotNum: charPkt.ISlotNum,
IGender: charPkt.IGender,
SzFirstName: charPkt.SzFirstName,
SzLastName: charPkt.SzLastName,
}, protocol.P_LS2CL_REP_SAVE_CHAR_NAME_SUCC)
})
}
func validateCharacterCreation(character *protocol.SP_CL2LS_REQ_CHAR_CREATE) bool {
@ -194,33 +194,40 @@ func validateCharacterCreation(character *protocol.SP_CL2LS_REQ_CHAR_CREATE) boo
return true
}
func SendFail(peer *Peer) error {
if err := peer.Send(protocol.P_LS2CL_REP_SHARD_SELECT_FAIL, &protocol.SP_LS2CL_REP_SHARD_SELECT_FAIL{
IErrorCode: 2,
}); err != nil {
return err
}
return nil
}
func (server *LoginServer) CharacterCreate(peer *Peer, pkt protocol.Packet) error {
var charPkt protocol.SP_CL2LS_REQ_CHAR_CREATE
pkt.Decode(&charPkt)
if !validateCharacterCreation(&charPkt) {
peer.Send(&protocol.SP_LS2CL_REP_SHARD_SELECT_FAIL{IErrorCode: 2}, protocol.P_LS2CL_REP_SHARD_SELECT_FAIL)
return fmt.Errorf("invalid SP_CL2LS_REQ_CHAR_CREATE!")
return SendFail(peer)
}
if err := db.DefaultDB.FinishPlayer(&charPkt, peer.AccountID); err != nil {
peer.Send(&protocol.SP_LS2CL_REP_SHARD_SELECT_FAIL{IErrorCode: 2}, protocol.P_LS2CL_REP_SHARD_SELECT_FAIL)
return err
return SendFail(peer)
}
plr, err := db.DefaultDB.GetPlayer(int(charPkt.PCStyle.IPC_UID))
if err != nil {
peer.Send(&protocol.SP_LS2CL_REP_SHARD_SELECT_FAIL{IErrorCode: 2}, protocol.P_LS2CL_REP_SHARD_SELECT_FAIL)
return err
return SendFail(peer)
}
PCStyle, PCStyle2 := util.Player2PCStyle(plr)
return peer.Send(&protocol.SP_LS2CL_REP_CHAR_CREATE_SUCC{
return peer.Send(protocol.P_LS2CL_REP_CHAR_CREATE_SUCC, &protocol.SP_LS2CL_REP_CHAR_CREATE_SUCC{
ILevel: int16(plr.Level),
SPC_Style: PCStyle,
SPC_Style2: PCStyle2,
SOn_Item: charPkt.SOn_Item, // if items were faked, we don't really care since the db only stores the sanitized fields
}, protocol.P_LS2CL_REP_CHAR_CREATE_SUCC)
})
}
func (server *LoginServer) CharacterDelete(peer *Peer, pkt protocol.Packet) error {
@ -229,13 +236,12 @@ func (server *LoginServer) CharacterDelete(peer *Peer, pkt protocol.Packet) erro
slot, err := db.DefaultDB.DeletePlayer(int(charPkt.IPC_UID), peer.AccountID)
if err != nil {
peer.Send(&protocol.SP_LS2CL_REP_SHARD_SELECT_FAIL{IErrorCode: 2}, protocol.P_LS2CL_REP_SHARD_SELECT_FAIL)
return err
return SendFail(peer)
}
return peer.Send(&protocol.SP_LS2CL_REP_CHAR_DELETE_SUCC{
return peer.Send(protocol.P_LS2CL_REP_CHAR_DELETE_SUCC, &protocol.SP_LS2CL_REP_CHAR_DELETE_SUCC{
ISlotNum: int8(slot),
}, protocol.P_LS2CL_REP_CHAR_DELETE_SUCC)
})
}
func (server *LoginServer) FinishTutorial(peer *Peer, pkt protocol.Packet) error {
@ -243,8 +249,7 @@ func (server *LoginServer) FinishTutorial(peer *Peer, pkt protocol.Packet) error
pkt.Decode(&charPkt)
if err := db.DefaultDB.FinishTutorial(int(charPkt.IPC_UID), peer.AccountID); err != nil {
peer.Send(&protocol.SP_LS2CL_REP_SHARD_SELECT_FAIL{IErrorCode: 2}, protocol.P_LS2CL_REP_SHARD_SELECT_FAIL)
return err
return SendFail(peer)
}
// no response

2
server/loginserver.go
View File

@ -63,7 +63,7 @@ func (server *LoginServer) Start() {
client := NewPeer(server, conn)
server.Connect(client)
go client.ClientHandler()
go client.Handler()
}
}

74
server/peer.go
View File

@ -49,56 +49,64 @@ func NewPeer(handler PeerHandler, conn net.Conn) *Peer {
}
}
func (client *Peer) Send(data interface{}, typeID uint32) error {
func (peer *Peer) Send(typeID uint32, data ...interface{}) error {
buf := pool.Get()
defer func() { // always return the buffer to the pool
pool.Put(buf)
}()
defer pool.Put(buf) // always return the buffer to the pool
// encode
// body start
pkt := protocol.NewPacket(buf)
// write the typeID and packet body
pkt.Encode(uint32(typeID))
pkt.Encode(data)
// write the packet size
binary.Write(client.conn, binary.LittleEndian, uint32(buf.Len()))
// encrypt typeID & body
switch client.whichKey {
case USE_E:
protocol.EncryptData(buf.Bytes(), client.E_key)
case USE_FE:
protocol.EncryptData(buf.Bytes(), client.FE_key)
// encode type id
if err := pkt.Encode(uint32(typeID)); err != nil {
return err
}
// write packet type && packet body
// encode data
for _, trailer := range data {
if err := pkt.Encode(trailer); err != nil {
return err
}
}
// encrypt body
switch peer.whichKey {
case USE_E:
protocol.EncryptData(buf.Bytes(), peer.E_key)
case USE_FE:
protocol.EncryptData(buf.Bytes(), peer.FE_key)
}
// write packet size
if err := binary.Write(peer.conn, binary.LittleEndian, uint32(buf.Len())); err != nil {
return err
}
// write packet body
log.Printf("Sending %#v, sizeof: %d", data, buf.Len())
if _, err := client.conn.Write(buf.Bytes()); err != nil {
if _, err := peer.conn.Write(buf.Bytes()); err != nil {
return fmt.Errorf("[FATAL] failed to write packet body! %v", err)
}
return nil
}
func (client *Peer) Kill() {
if !client.alive {
func (peer *Peer) Kill() {
if !peer.alive {
return
}
client.alive = false
client.conn.Close()
client.handler.Disconnect(client)
peer.alive = false
peer.conn.Close()
peer.handler.Disconnect(peer)
}
func (client *Peer) ClientHandler() {
defer client.Kill()
func (peer *Peer) Handler() {
defer peer.Kill()
for {
// read packet size
// read packet size, the goroutine spends most of it's time parked here
var sz uint32
if err := binary.Read(client.conn, binary.LittleEndian, &sz); err != nil {
if err := binary.Read(peer.conn, binary.LittleEndian, &sz); err != nil {
log.Printf("[FATAL] failed to read packet size! %v\n", err)
return
}
@ -111,17 +119,17 @@ func (client *Peer) ClientHandler() {
// read packet body
buf := pool.Get()
if _, err := buf.ReadFrom(io.LimitReader(client.conn, int64(sz))); err != nil {
if _, err := buf.ReadFrom(io.LimitReader(peer.conn, int64(sz))); err != nil {
log.Printf("[FATAL] failed to read packet body! %v", err)
return
}
// decrypt
protocol.DecryptData(buf.Bytes(), client.E_key)
protocol.DecryptData(buf.Bytes(), peer.E_key)
pkt := protocol.NewPacket(buf)
// create packet && read typeID
var typeID uint32
pkt := protocol.NewPacket(buf)
if err := pkt.Decode(&typeID); err != nil {
log.Printf("[FATAL] failed to read packet type! %v", err)
return
@ -129,7 +137,7 @@ func (client *Peer) ClientHandler() {
// dispatch packet
log.Printf("Got packet ID: %x, with a sizeof: %d\n", typeID, sz)
if err := client.handler.HandlePacket(client, typeID, pkt); err != nil {
if err := peer.handler.HandlePacket(peer, typeID, pkt); err != nil {
log.Printf("[FATAL] %v", err)
return
}