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holy refactor

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started out as me making a service abstraction..

- db.Player exists again, and entity.Player uses it as an embedded struct
- chunk.ForEachEntity() lets you add/remove entities during iteration now
- removed account related fields from CNPeer
- protocol/pool has been merged with protocol.
use protocol.GetBuffer() and protocol.PutBuffer().
- new protocol/internal/service!
service.Service is an abstraction layer to handle multiple CNPeer*
connections and allows you to associate each with an interface{} uData.
In the future it might also handle a task queue for jobs that
modify/interact with the player's uData, called from service.handleEvents()
- PacketHandler callback type has a new param! uData is passed as well now
- much of loginserver/shardserver is now handled by the shared service
abstraction
- SHARD: NPC_ENTER packets are now sent on player loading complete
rather than on enter.
This commit is contained in:
CPunch 2023-11-27 21:23:28 -06:00
parent d8277ea89c
commit 1f66acfd25
12 changed files with 378 additions and 358 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

44
internal/db/players.go
View File

@ -4,11 +4,41 @@ import (
"database/sql"
"github.com/CPunch/gopenfusion/config"
"github.com/CPunch/gopenfusion/internal/entity"
"github.com/CPunch/gopenfusion/internal/protocol"
"github.com/blockloop/scan"
)
type Player struct {
PlayerID int
AccountID int
AccountLevel int
Slot int
PCStyle protocol.SPCStyle
PCStyle2 protocol.SPCStyle2
EquippedNanos [3]int
Nanos [config.NANO_COUNT]protocol.SNano
Equip [config.AEQUIP_COUNT]protocol.SItemBase
Inven [config.AINVEN_COUNT]protocol.SItemBase
Bank [config.ABANK_COUNT]protocol.SItemBase
SkywayLocationFlag []byte
FirstUseFlag []byte
Quests []byte
HP int
Level int
Taros int
FusionMatter int
Mentor int
X, Y, Z int
Angle int
BatteryN int
BatteryW int
WarpLocationFlag int
ActiveNanoSlotNum int
Fatigue int
CurrentMissionID int
IPCState int8
}
// returns PlayerID, error
func (db *DBHandler) NewPlayer(AccountID int, FirstName, LastName string, slot int) (int, error) {
nameCheck := 1 // for now, we approve all names
@ -121,8 +151,8 @@ const (
INNER JOIN Accounts as acc ON p.AccountID = acc.AccountID `
)
func (db *DBHandler) readPlayer(rows *sql.Rows) (*entity.Player, error) {
plr := entity.Player{ActiveNanoSlotNum: 0}
func (db *DBHandler) readPlayer(rows *sql.Rows) (*Player, error) {
plr := Player{ActiveNanoSlotNum: 0}
if err := rows.Scan(
&plr.PlayerID, &plr.AccountID, &plr.Slot, &plr.PCStyle.SzFirstName, &plr.PCStyle.SzLastName,
@ -162,13 +192,13 @@ func (db *DBHandler) readPlayer(rows *sql.Rows) (*entity.Player, error) {
return &plr, nil
}
func (db *DBHandler) GetPlayer(PlayerID int) (*entity.Player, error) {
func (db *DBHandler) GetPlayer(PlayerID int) (*Player, error) {
rows, err := db.Query(QUERY_PLAYERS+"WHERE p.PlayerID = $1", PlayerID)
if err != nil {
return nil, err
}
var plr *entity.Player
var plr *Player
for rows.Next() {
plr, err = db.readPlayer(rows)
if err != nil {
@ -179,13 +209,13 @@ func (db *DBHandler) GetPlayer(PlayerID int) (*entity.Player, error) {
return plr, nil
}
func (db *DBHandler) GetPlayers(AccountID int) ([]entity.Player, error) {
func (db *DBHandler) GetPlayers(AccountID int) ([]Player, error) {
rows, err := db.Query(QUERY_PLAYERS+"WHERE p.AccountID = $1", AccountID)
if err != nil {
return nil, err
}
var plrs []entity.Player
var plrs []Player
for rows.Next() {
plr, err := db.readPlayer(rows)
if err != nil {

10
internal/entity/chunk.go
View File

@ -38,11 +38,17 @@ func (c *Chunk) SendPacket(typeID uint32, pkt ...interface{}) {
}
// calls f for each entity in this chunk, if f returns true, stop iterating
// f can safely add/remove entities from the chunk
func (c *Chunk) ForEachEntity(f func(entity Entity) bool) {
// copy entities to avoid locking for the entire iteration
entities := make(map[Entity]struct{})
c.lock.Lock()
defer c.lock.Unlock()
for entity := range c.entities {
entities[entity] = struct{}{}
}
c.lock.Unlock()
for entity := range entities {
if f(entity) {
break
}

39
internal/entity/player.go
View File

@ -1,41 +1,22 @@
package entity
import (
"github.com/CPunch/gopenfusion/config"
"github.com/CPunch/gopenfusion/internal/db"
"github.com/CPunch/gopenfusion/internal/protocol"
)
type Player struct {
db.Player
Peer *protocol.CNPeer
Chunk ChunkPosition
PlayerID int
AccountID int
AccountLevel int
Slot int
PCStyle protocol.SPCStyle
PCStyle2 protocol.SPCStyle2
EquippedNanos [3]int
Nanos [config.NANO_COUNT]protocol.SNano
Equip [config.AEQUIP_COUNT]protocol.SItemBase
Inven [config.AINVEN_COUNT]protocol.SItemBase
Bank [config.ABANK_COUNT]protocol.SItemBase
SkywayLocationFlag []byte
FirstUseFlag []byte
Quests []byte
HP int
Level int
Taros int
FusionMatter int
Mentor int
X, Y, Z int
Angle int
BatteryN int
BatteryW int
WarpLocationFlag int
ActiveNanoSlotNum int
Fatigue int
CurrentMissionID int
IPCState int8
}
func NewPlayer(peer *protocol.CNPeer, player *db.Player) *Player {
return &Player{
Player: *player,
Peer: peer,
Chunk: MakeChunkPosition(player.X, player.Y),
}
}
// ==================== Entity interface ====================

45
internal/protocol/cnpeer.go
View File

@ -6,9 +6,8 @@ import (
"io"
"log"
"net"
"sync/atomic"
"time"
"github.com/CPunch/gopenfusion/internal/protocol/pool"
)
const (
@ -20,13 +19,14 @@ const (
type CNPeer struct {
conn net.Conn
eRecv chan *Event
SzID string
E_key []byte
FE_key []byte
AccountID int
PlayerID int32
whichKey int
alive bool
alive *atomic.Bool
// May not be set while Send() or Handler() are concurrently running.
E_key []byte
// May not be set while Send() or Handler() are concurrently running.
FE_key []byte
}
func GetTime() uint64 {
@ -34,22 +34,23 @@ func GetTime() uint64 {
}
func NewCNPeer(eRecv chan *Event, conn net.Conn) *CNPeer {
return &CNPeer{
p := &CNPeer{
conn: conn,
eRecv: eRecv,
SzID: "",
whichKey: USE_E,
alive: &atomic.Bool{},
E_key: []byte(DEFAULT_KEY),
FE_key: nil,
AccountID: -1,
whichKey: USE_E,
alive: true,
}
return p
}
func (peer *CNPeer) Send(typeID uint32, data ...interface{}) error {
// grab buffer from pool
buf := pool.Get()
defer pool.Put(buf)
buf := GetBuffer()
defer PutBuffer(buf)
// allocate space for packet size
buf.Write(make([]byte, 4))
@ -73,12 +74,14 @@ func (peer *CNPeer) Send(typeID uint32, data ...interface{}) error {
binary.LittleEndian.PutUint32(buf.Bytes()[:4], uint32(buf.Len()-4))
// encrypt body
var key []byte
switch peer.whichKey {
case USE_E:
EncryptData(buf.Bytes()[4:], peer.E_key)
key = peer.E_key
case USE_FE:
EncryptData(buf.Bytes()[4:], peer.FE_key)
key = peer.FE_key
}
EncryptData(buf.Bytes()[4:], key)
// send full packet
log.Printf("Sending %#v, sizeof: %d, buffer: %v", data, buf.Len(), buf.Bytes())
@ -94,11 +97,12 @@ func (peer *CNPeer) SetActiveKey(whichKey int) {
func (peer *CNPeer) Kill() {
log.Printf("Killing peer %p", peer)
if !peer.alive {
if !peer.alive.Load() {
return
}
peer.alive.Store(false)
peer.alive = false
peer.conn.Close()
peer.eRecv <- &Event{Type: EVENT_CLIENT_DISCONNECT, Peer: peer}
}
@ -107,6 +111,7 @@ func (peer *CNPeer) Kill() {
func (peer *CNPeer) Handler() {
defer peer.Kill()
peer.alive.Store(true)
for {
// read packet size, the goroutine spends most of it's time parked here
var sz uint32
@ -123,7 +128,7 @@ func (peer *CNPeer) Handler() {
// grab buffer && read packet body
if err := func() error {
buf := pool.Get()
buf := GetBuffer()
if _, err := buf.ReadFrom(io.LimitReader(peer.conn, int64(sz))); err != nil {
return fmt.Errorf("failed to read packet body! %v", err)
}

8
internal/protocol/pool/pool.go → internal/protocol/pool.go
View File

@ -1,4 +1,4 @@
package pool
package protocol
import (
"bytes"
@ -9,11 +9,13 @@ var allocator = &sync.Pool{
New: func() any { return new(bytes.Buffer) },
}
func Get() *bytes.Buffer {
// grabs a *bytes.Buffer from the pool
func GetBuffer() *bytes.Buffer {
return allocator.Get().(*bytes.Buffer)
}
func Put(buf *bytes.Buffer) {
// returns a *bytes.Buffer to the pool
func PutBuffer(buf *bytes.Buffer) {
buf.Reset()
allocator.Put(buf)
}

138
internal/service/service.go Normal file
View File

@ -0,0 +1,138 @@
package service
import (
"fmt"
"log"
"net"
"sync"
"github.com/CPunch/gopenfusion/config"
"github.com/CPunch/gopenfusion/internal/protocol"
)
type PacketHandler func(peer *protocol.CNPeer, uData interface{}, pkt protocol.Packet) error
func StubbedPacket(_ *protocol.CNPeer, _ interface{}, _ protocol.Packet) error {
return nil
}
type Service struct {
listener net.Listener
port int
Name string
eRecv chan *protocol.Event
packetHandlers map[uint32]PacketHandler
peers *sync.Map
// OnDisconnect is called when a peer disconnects from the service.
// uData is the stored value of the key/value pair in the peer map.
// It may not be set while the service is running. (eg. srvc.Start() has been called)
OnDisconnect func(peer *protocol.CNPeer, uData interface{})
// OnConnect is called when a peer connects to the service.
// return value is used as the value in the peer map.
// It may not be set while the service is running. (eg. srvc.Start() has been called)
OnConnect func(peer *protocol.CNPeer) (uData interface{})
}
func NewService(name string, port int) (*Service, error) {
listener, err := net.Listen("tcp", fmt.Sprintf(":%d", port))
if err != nil {
return nil, err
}
service := &Service{
listener: listener,
port: port,
Name: name,
eRecv: make(chan *protocol.Event),
packetHandlers: make(map[uint32]PacketHandler),
peers: &sync.Map{},
}
return service, nil
}
// may not be called while the service is running (eg. srvc.Start() has been called)
func (service *Service) AddPacketHandler(pktID uint32, handler PacketHandler) {
service.packetHandlers[pktID] = handler
}
func (service *Service) Start() {
log.Printf("%s service hosted on %s:%d\n", service.Name, config.GetAnnounceIP(), service.port)
go service.handleEvents()
for {
conn, err := service.listener.Accept()
if err != nil {
log.Println("Connection error: ", err)
return
}
peer := protocol.NewCNPeer(service.eRecv, conn)
service.connect(peer)
}
}
func (service *Service) handleEvents() {
for event := range service.eRecv {
switch event.Type {
case protocol.EVENT_CLIENT_DISCONNECT:
service.disconnect(event.Peer)
case protocol.EVENT_CLIENT_PACKET:
if err := service.handlePacket(event.Peer, event.PktID, protocol.NewPacket(event.Pkt)); err != nil {
log.Printf("Error handling packet: %v", err)
event.Peer.Kill()
}
// the packet buffer is given to us by the event, so we'll need to make sure to return it to the pool
protocol.PutBuffer(event.Pkt)
}
}
}
func (service *Service) handlePacket(peer *protocol.CNPeer, typeID uint32, pkt protocol.Packet) error {
uData, _ := service.peers.Load(peer)
if hndlr, ok := service.packetHandlers[typeID]; ok {
if err := hndlr(peer, uData, pkt); err != nil {
return err
}
} else {
log.Printf("[WARN] unknown packet ID: %x\n", typeID)
}
return nil
}
func (service *Service) disconnect(peer *protocol.CNPeer) {
if service.OnDisconnect != nil {
uData, _ := service.peers.Load(peer)
service.OnDisconnect(peer, uData)
}
log.Printf("Peer %p disconnected from %s\n", peer, service.Name)
service.peers.Delete(peer)
}
func (service *Service) connect(peer *protocol.CNPeer) {
// default uData to nil, but if the service has an OnConnect
// handler, use the result from that
uData := interface{}(nil)
if service.OnConnect != nil {
uData = service.OnConnect(peer)
}
log.Printf("New peer %p connected to %s\n", peer, service.Name)
service.peers.Store(peer, uData)
go peer.Handler()
}
func (service *Service) SetPeerData(peer *protocol.CNPeer, uData interface{}) {
service.peers.Store(peer, uData)
}
func (service *Service) RangePeers(f func(peer *protocol.CNPeer, uData interface{}) bool) {
service.peers.Range(func(key, value any) bool {
return f(key.(*protocol.CNPeer), value)
})
}

55
login/login.go
View File

@ -25,8 +25,6 @@ const (
)
func (server *LoginServer) AcceptLogin(peer *protocol.CNPeer, SzID string, IClientVerC int32, ISlotNum int8, data []protocol.SP_LS2CL_REP_CHAR_INFO) error {
peer.SzID = SzID
resp := protocol.SP_LS2CL_REP_LOGIN_SUCC{
SzID: SzID,
ICharCount: int8(len(data)),
@ -62,7 +60,7 @@ func (server *LoginServer) AcceptLogin(peer *protocol.CNPeer, SzID string, IClie
return nil
}
func (server *LoginServer) Login(peer *protocol.CNPeer, pkt protocol.Packet) error {
func (server *LoginServer) Login(peer *protocol.CNPeer, _account interface{}, pkt protocol.Packet) error {
var loginPkt protocol.SP_CL2LS_REQ_LOGIN
pkt.Decode(&loginPkt)
@ -74,9 +72,9 @@ func (server *LoginServer) Login(peer *protocol.CNPeer, pkt protocol.Packet) err
}
// client is resending a login packet??
if peer.AccountID != -1 {
if _account != nil {
SendError(LOGIN_ERROR)
return fmt.Errorf("out of order P_CL2LS_REQ_LOGIN")
return fmt.Errorf("out of order P_CL2LS_REQ_LOGIN: %v", _account)
}
// attempt login
@ -99,7 +97,7 @@ func (server *LoginServer) Login(peer *protocol.CNPeer, pkt protocol.Packet) err
}
// grab player data
peer.AccountID = account.AccountID
server.service.SetPeerData(peer, account)
plrs, err := server.dbHndlr.GetPlayers(account.AccountID)
if err != nil {
SendError(LOGIN_DATABASE_ERROR)
@ -138,7 +136,7 @@ func (server *LoginServer) Login(peer *protocol.CNPeer, pkt protocol.Packet) err
return server.AcceptLogin(peer, loginPkt.SzID, loginPkt.IClientVerC, 1, charInfo[:len(plrs)])
}
func (server *LoginServer) CheckCharacterName(peer *protocol.CNPeer, pkt protocol.Packet) error {
func (server *LoginServer) CheckCharacterName(peer *protocol.CNPeer, account interface{}, pkt protocol.Packet) error {
var charPkt protocol.SP_CL2LS_REQ_CHECK_CHAR_NAME
pkt.Decode(&charPkt)
@ -149,17 +147,17 @@ func (server *LoginServer) CheckCharacterName(peer *protocol.CNPeer, pkt protoco
})
}
func (server *LoginServer) SaveCharacterName(peer *protocol.CNPeer, pkt protocol.Packet) error {
func (server *LoginServer) SaveCharacterName(peer *protocol.CNPeer, account interface{}, pkt protocol.Packet) error {
var charPkt protocol.SP_CL2LS_REQ_SAVE_CHAR_NAME
pkt.Decode(&charPkt)
if peer.AccountID == -1 {
if account == nil {
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 := server.dbHndlr.NewPlayer(peer.AccountID, charPkt.SzFirstName, charPkt.SzLastName, int(charPkt.ISlotNum))
PlayerID, err := server.dbHndlr.NewPlayer(account.(*db.Account).AccountID, charPkt.SzFirstName, charPkt.SzLastName, int(charPkt.ISlotNum))
if err != nil {
peer.Send(protocol.P_LS2CL_REP_SAVE_CHAR_NAME_FAIL, protocol.SP_LS2CL_REP_SAVE_CHAR_NAME_FAIL{})
return err
@ -211,16 +209,20 @@ func SendFail(peer *protocol.CNPeer) error {
return nil
}
func (server *LoginServer) CharacterCreate(peer *protocol.CNPeer, pkt protocol.Packet) error {
func (server *LoginServer) CharacterCreate(peer *protocol.CNPeer, account interface{}, pkt protocol.Packet) error {
var charPkt protocol.SP_CL2LS_REQ_CHAR_CREATE
pkt.Decode(&charPkt)
if account == nil {
return SendFail(peer)
}
if !validateCharacterCreation(&charPkt) {
log.Printf("Invalid character creation packet: %+v", charPkt)
return SendFail(peer)
}
if err := server.dbHndlr.FinishPlayer(&charPkt, peer.AccountID); err != nil {
if err := server.dbHndlr.FinishPlayer(&charPkt, account.(*db.Account).AccountID); err != nil {
log.Printf("Error finishing player: %v", err)
return SendFail(peer)
}
@ -239,11 +241,15 @@ func (server *LoginServer) CharacterCreate(peer *protocol.CNPeer, pkt protocol.P
})
}
func (server *LoginServer) CharacterDelete(peer *protocol.CNPeer, pkt protocol.Packet) error {
func (server *LoginServer) CharacterDelete(peer *protocol.CNPeer, account interface{}, pkt protocol.Packet) error {
var charPkt protocol.SP_CL2LS_REQ_CHAR_DELETE
pkt.Decode(&charPkt)
slot, err := server.dbHndlr.DeletePlayer(int(charPkt.IPC_UID), peer.AccountID)
if account == nil {
return SendFail(peer)
}
slot, err := server.dbHndlr.DeletePlayer(int(charPkt.IPC_UID), account.(*db.Account).AccountID)
if err != nil {
return SendFail(peer)
}
@ -253,10 +259,14 @@ func (server *LoginServer) CharacterDelete(peer *protocol.CNPeer, pkt protocol.P
})
}
func (server *LoginServer) ShardSelect(peer *protocol.CNPeer, pkt protocol.Packet) error {
func (server *LoginServer) ShardSelect(peer *protocol.CNPeer, account interface{}, pkt protocol.Packet) error {
var selection protocol.SP_CL2LS_REQ_CHAR_SELECT
pkt.Decode(&selection)
if account == nil {
return SendFail(peer)
}
shards := server.redisHndlr.GetShards()
if len(shards) == 0 {
SendFail(peer)
@ -278,9 +288,10 @@ func (server *LoginServer) ShardSelect(peer *protocol.CNPeer, pkt protocol.Packe
log.Printf("Error getting player: %v", err)
return SendFail(peer)
}
accountID := account.(*db.Account).AccountID
if plr.AccountID != peer.AccountID {
log.Printf("HACK: player %d tried to join shard as player %d", peer.AccountID, plr.AccountID)
if plr.AccountID != accountID {
log.Printf("HACK: player %d tried to join shard as player %d", accountID, plr.AccountID)
return SendFail(peer)
}
@ -288,7 +299,7 @@ func (server *LoginServer) ShardSelect(peer *protocol.CNPeer, pkt protocol.Packe
server.redisHndlr.QueueLogin(key, redis.LoginMetadata{
FEKey: peer.FE_key,
PlayerID: int32(selection.IPC_UID),
AccountID: peer.AccountID,
AccountID: accountID,
})
// craft response
@ -303,11 +314,15 @@ func (server *LoginServer) ShardSelect(peer *protocol.CNPeer, pkt protocol.Packe
return peer.Send(protocol.P_LS2CL_REP_SHARD_SELECT_SUCC, resp)
}
func (server *LoginServer) FinishTutorial(peer *protocol.CNPeer, pkt protocol.Packet) error {
func (server *LoginServer) FinishTutorial(peer *protocol.CNPeer, account interface{}, pkt protocol.Packet) error {
var charPkt protocol.SP_CL2LS_REQ_SAVE_CHAR_TUTOR
pkt.Decode(&charPkt)
if err := server.dbHndlr.FinishTutorial(int(charPkt.IPC_UID), peer.AccountID); err != nil {
if account == nil {
return SendFail(peer)
}
if err := server.dbHndlr.FinishTutorial(int(charPkt.IPC_UID), account.(*db.Account).AccountID); err != nil {
return SendFail(peer)
}

118
login/loginserver.go
View File

@ -1,126 +1,52 @@
package login
import (
"fmt"
"log"
"net"
"sync"
"github.com/CPunch/gopenfusion/config"
"github.com/CPunch/gopenfusion/internal/db"
"github.com/CPunch/gopenfusion/internal/protocol"
"github.com/CPunch/gopenfusion/internal/protocol/pool"
"github.com/CPunch/gopenfusion/internal/redis"
"github.com/CPunch/gopenfusion/internal/service"
)
type PacketHandler func(peer *protocol.CNPeer, pkt protocol.Packet) error
func stubbedPacket(_ *protocol.CNPeer, _ protocol.Packet) error { /* stubbed */ return nil }
type LoginServer struct {
listener net.Listener
port int
service *service.Service
dbHndlr *db.DBHandler
redisHndlr *redis.RedisHandler
eRecv chan *protocol.Event
peers map[*protocol.CNPeer]bool
packetHandlers map[uint32]PacketHandler
peerLock sync.Mutex
}
func NewLoginServer(dbHndlr *db.DBHandler, redisHndlr *redis.RedisHandler, port int) (*LoginServer, error) {
listener, err := net.Listen("tcp", fmt.Sprintf(":%d", port))
srvc, err := service.NewService("LOGIN", port)
if err != nil {
return nil, err
}
server := &LoginServer{
listener: listener,
port: port,
service: srvc,
dbHndlr: dbHndlr,
redisHndlr: redisHndlr,
peers: make(map[*protocol.CNPeer]bool),
eRecv: make(chan *protocol.Event),
}
server.packetHandlers = map[uint32]PacketHandler{
protocol.P_CL2LS_REQ_LOGIN: server.Login,
protocol.P_CL2LS_REQ_CHECK_CHAR_NAME: server.CheckCharacterName,
protocol.P_CL2LS_REQ_SAVE_CHAR_NAME: server.SaveCharacterName,
protocol.P_CL2LS_REQ_CHAR_CREATE: server.CharacterCreate,
protocol.P_CL2LS_REQ_CHAR_SELECT: server.ShardSelect,
protocol.P_CL2LS_REQ_CHAR_DELETE: server.CharacterDelete,
protocol.P_CL2LS_REQ_SHARD_SELECT: stubbedPacket,
protocol.P_CL2LS_REQ_SHARD_LIST_INFO: stubbedPacket,
protocol.P_CL2LS_CHECK_NAME_LIST: stubbedPacket,
protocol.P_CL2LS_REQ_SAVE_CHAR_TUTOR: server.FinishTutorial,
protocol.P_CL2LS_REQ_PC_EXIT_DUPLICATE: stubbedPacket,
protocol.P_CL2LS_REP_LIVE_CHECK: stubbedPacket,
protocol.P_CL2LS_REQ_CHANGE_CHAR_NAME: stubbedPacket,
protocol.P_CL2LS_REQ_SERVER_SELECT: stubbedPacket,
srvc.AddPacketHandler(protocol.P_CL2LS_REQ_LOGIN, server.Login)
srvc.AddPacketHandler(protocol.P_CL2LS_REQ_CHECK_CHAR_NAME, server.CheckCharacterName)
srvc.AddPacketHandler(protocol.P_CL2LS_REQ_SAVE_CHAR_NAME, server.SaveCharacterName)
srvc.AddPacketHandler(protocol.P_CL2LS_REQ_CHAR_CREATE, server.CharacterCreate)
srvc.AddPacketHandler(protocol.P_CL2LS_REQ_CHAR_SELECT, server.ShardSelect)
srvc.AddPacketHandler(protocol.P_CL2LS_REQ_CHAR_DELETE, server.CharacterDelete)
srvc.AddPacketHandler(protocol.P_CL2LS_REQ_SHARD_SELECT, service.StubbedPacket)
srvc.AddPacketHandler(protocol.P_CL2LS_REQ_SHARD_LIST_INFO, service.StubbedPacket)
srvc.AddPacketHandler(protocol.P_CL2LS_CHECK_NAME_LIST, service.StubbedPacket)
srvc.AddPacketHandler(protocol.P_CL2LS_REQ_SAVE_CHAR_TUTOR, server.FinishTutorial)
srvc.AddPacketHandler(protocol.P_CL2LS_REQ_PC_EXIT_DUPLICATE, service.StubbedPacket)
srvc.AddPacketHandler(protocol.P_CL2LS_REP_LIVE_CHECK, service.StubbedPacket)
srvc.AddPacketHandler(protocol.P_CL2LS_REQ_CHANGE_CHAR_NAME, service.StubbedPacket)
srvc.AddPacketHandler(protocol.P_CL2LS_REQ_SERVER_SELECT, service.StubbedPacket)
srvc.OnConnect = func(peer *protocol.CNPeer) interface{} {
return nil
}
return server, nil
}
func (server *LoginServer) Start() {
log.Printf("Login service hosted on %s:%d\n", config.GetAnnounceIP(), server.port)
go server.handleEvents()
for {
conn, err := server.listener.Accept()
if err != nil {
log.Println("Connection error: ", err)
return
}
client := protocol.NewCNPeer(server.eRecv, conn)
server.connect(client)
go client.Handler()
}
}
func (server *LoginServer) handleEvents() {
for event := range server.eRecv {
switch event.Type {
case protocol.EVENT_CLIENT_DISCONNECT:
server.disconnect(event.Peer)
case protocol.EVENT_CLIENT_PACKET:
if err := server.handlePacket(event.Peer, event.PktID, protocol.NewPacket(event.Pkt)); err != nil {
log.Printf("Error handling packet: %v", err)
event.Peer.Kill()
}
// the packet is given to us by the event, so we'll need to make sure to return it to the pool
pool.Put(event.Pkt)
}
}
}
func (server *LoginServer) handlePacket(peer *protocol.CNPeer, typeID uint32, pkt protocol.Packet) error {
if hndlr, ok := server.packetHandlers[typeID]; ok {
if err := hndlr(peer, pkt); err != nil {
return err
}
} else {
log.Printf("[WARN] unknown packet ID: %x\n", typeID)
}
return nil
}
func (server *LoginServer) disconnect(peer *protocol.CNPeer) {
server.peerLock.Lock()
defer server.peerLock.Unlock()
log.Printf("Peer %p disconnected from LOGIN\n", peer)
delete(server.peers, peer)
}
func (server *LoginServer) connect(peer *protocol.CNPeer) {
server.peerLock.Lock()
defer server.peerLock.Unlock()
log.Printf("New peer %p connected to LOGIN\n", peer)
server.peers[peer] = true
server.service.Start()
}

34
shard/chat.go
View File

@ -1,16 +1,20 @@
package shard
import "github.com/CPunch/gopenfusion/internal/protocol"
import (
"fmt"
func (server *ShardServer) freeChat(peer *protocol.CNPeer, pkt protocol.Packet) error {
"github.com/CPunch/gopenfusion/internal/entity"
"github.com/CPunch/gopenfusion/internal/protocol"
)
func (server *ShardServer) freeChat(peer *protocol.CNPeer, _plr interface{}, pkt protocol.Packet) error {
var chat protocol.SP_CL2FE_REQ_SEND_FREECHAT_MESSAGE
pkt.Decode(&chat)
// sanity check
plr, err := server.getPlayer(peer)
if err != nil {
return err
if _plr == nil {
return fmt.Errorf("freeChat: _plr is nil")
}
plr := _plr.(*entity.Player)
// spread message
return server.sendAllPacket(plr, protocol.P_FE2CL_REP_SEND_FREECHAT_MESSAGE_SUCC, protocol.SP_FE2CL_REP_SEND_FREECHAT_MESSAGE_SUCC{
@ -20,15 +24,14 @@ func (server *ShardServer) freeChat(peer *protocol.CNPeer, pkt protocol.Packet)
})
}
func (server *ShardServer) menuChat(peer *protocol.CNPeer, pkt protocol.Packet) error {
func (server *ShardServer) menuChat(peer *protocol.CNPeer, _plr interface{}, pkt protocol.Packet) error {
var chat protocol.SP_CL2FE_REQ_SEND_MENUCHAT_MESSAGE
pkt.Decode(&chat)
// sanity check
plr, err := server.getPlayer(peer)
if err != nil {
return err
if _plr == nil {
return fmt.Errorf("menuChat: _plr is nil")
}
plr := _plr.(*entity.Player)
// spread message
return server.sendAllPacket(plr, protocol.P_FE2CL_REP_SEND_MENUCHAT_MESSAGE_SUCC, protocol.SP_FE2CL_REP_SEND_MENUCHAT_MESSAGE_SUCC{
@ -38,15 +41,14 @@ func (server *ShardServer) menuChat(peer *protocol.CNPeer, pkt protocol.Packet)
})
}
func (server *ShardServer) emoteChat(peer *protocol.CNPeer, pkt protocol.Packet) error {
func (server *ShardServer) emoteChat(peer *protocol.CNPeer, _plr interface{}, pkt protocol.Packet) error {
var chat protocol.SP_CL2FE_REQ_PC_AVATAR_EMOTES_CHAT
pkt.Decode(&chat)
// sanity check
plr, err := server.getPlayer(peer)
if err != nil {
return err
if _plr == nil {
return fmt.Errorf("emoteChat: _plr is nil")
}
plr := _plr.(*entity.Player)
// spread message
return server.sendAllPacket(plr, protocol.P_FE2CL_REP_PC_AVATAR_EMOTES_CHAT, protocol.SP_FE2CL_REP_PC_AVATAR_EMOTES_CHAT{

46
shard/join.go
View File

@ -10,27 +10,29 @@ import (
)
func (server *ShardServer) attachPlayer(peer *protocol.CNPeer, meta redis.LoginMetadata) (*entity.Player, error) {
// resending a shard enter packet?
old, _ := server.getPlayer(peer)
if old != nil {
return nil, fmt.Errorf("resent enter packet")
}
// attach player
plr, err := server.dbHndlr.GetPlayer(int(meta.PlayerID))
dbPlr, err := server.dbHndlr.GetPlayer(int(meta.PlayerID))
if err != nil {
return nil, err
}
plr.Peer = peer
plr := entity.NewPlayer(peer, dbPlr)
server.setPlayer(peer, plr)
// once we create the player, it's memory address is owned by the
// server.Start() goroutine. the only functions allowed to access
// it are the packet handlers as no other goroutines will be
// concurrently accessing it.
server.service.SetPeerData(peer, plr)
return plr, nil
}
func (server *ShardServer) RequestEnter(peer *protocol.CNPeer, pkt protocol.Packet) error {
func (server *ShardServer) RequestEnter(peer *protocol.CNPeer, _plr interface{}, pkt protocol.Packet) error {
var enter protocol.SP_CL2FE_REQ_PC_ENTER
pkt.Decode(&enter)
// resending a shard enter packet?
if _plr != nil {
return fmt.Errorf("resent enter packet")
}
loginData, err := server.redisHndlr.GetLogin(enter.IEnterSerialKey)
if err != nil {
// the error codes for P_FE2CL_REP_PC_ENTER_FAIL aren't referenced in the client :(
@ -52,29 +54,35 @@ func (server *ShardServer) RequestEnter(peer *protocol.CNPeer, pkt protocol.Pack
// setup peer
peer.E_key = protocol.CreateNewKey(resp.UiSvrTime, uint64(resp.IID+1), uint64(resp.PCLoadData2CL.IFusionMatter+1))
peer.FE_key = loginData.FEKey
peer.PlayerID = loginData.PlayerID
peer.AccountID = loginData.AccountID
peer.SetActiveKey(protocol.USE_FE)
log.Printf("Player %d (AccountID %d) entered\n", resp.IID, loginData.AccountID)
if err := peer.Send(protocol.P_FE2CL_REP_PC_ENTER_SUCC, resp); err != nil {
return err
}
// we send the chunk updates (PC_NEW, NPC_NEW, etc.) after the enter packet
server.updatePlayerPosition(plr, int(plr.X), int(plr.Y), int(plr.Z), int(plr.Angle))
return nil
}
func (server *ShardServer) LoadingComplete(peer *protocol.CNPeer, pkt protocol.Packet) error {
func (server *ShardServer) LoadingComplete(peer *protocol.CNPeer, _plr interface{}, pkt protocol.Packet) error {
var loadComplete protocol.SP_CL2FE_REQ_PC_LOADING_COMPLETE
pkt.Decode(&loadComplete)
plr, err := server.getPlayer(peer)
// was the peer attached to a player?
if _plr == nil {
return fmt.Errorf("loadingComplete: plr is nil")
}
plr := _plr.(*entity.Player)
err := peer.Send(protocol.P_FE2CL_REP_PC_LOADING_COMPLETE_SUCC, protocol.SP_FE2CL_REP_PC_LOADING_COMPLETE_SUCC{IPC_ID: int32(plr.PlayerID)})
if err != nil {
return err
}
return peer.Send(protocol.P_FE2CL_REP_PC_LOADING_COMPLETE_SUCC, protocol.SP_FE2CL_REP_PC_LOADING_COMPLETE_SUCC{IPC_ID: int32(plr.PlayerID)})
// we send the chunk updates (PC_NEW, NPC_NEW, etc.) after the enter packet
chunkPos := entity.MakeChunkPosition(plr.X, plr.Y)
viewableChunks := server.getViewableChunks(chunkPos)
plr.SetChunkPos(chunkPos)
server.addEntityToChunks(plr, viewableChunks)
return nil
}

29
shard/movement.go
View File

@ -1,6 +1,8 @@
package shard
import (
"fmt"
"github.com/CPunch/gopenfusion/internal/entity"
"github.com/CPunch/gopenfusion/internal/protocol"
)
@ -13,15 +15,14 @@ func (server *ShardServer) updatePlayerPosition(plr *entity.Player, X, Y, Z, Ang
server.updateEntityChunk(plr, plr.GetChunkPos(), entity.MakeChunkPosition(X, Y))
}
func (server *ShardServer) playerMove(peer *protocol.CNPeer, pkt protocol.Packet) error {
func (server *ShardServer) playerMove(peer *protocol.CNPeer, _plr interface{}, pkt protocol.Packet) error {
var move protocol.SP_CL2FE_REQ_PC_MOVE
pkt.Decode(&move)
// sanity check
plr, err := server.getPlayer(peer)
if err != nil {
return err
if _plr == nil {
return fmt.Errorf("playerMove: _plr is nil")
}
plr := _plr.(*entity.Player)
// update chunking
server.updatePlayerPosition(plr, int(move.IX), int(move.IY), int(move.IZ), int(move.IAngle))
@ -42,15 +43,14 @@ func (server *ShardServer) playerMove(peer *protocol.CNPeer, pkt protocol.Packet
})
}
func (server *ShardServer) playerStop(peer *protocol.CNPeer, pkt protocol.Packet) error {
func (server *ShardServer) playerStop(peer *protocol.CNPeer, _plr interface{}, pkt protocol.Packet) error {
var stop protocol.SP_CL2FE_REQ_PC_STOP
pkt.Decode(&stop)
// sanity check
plr, err := server.getPlayer(peer)
if err != nil {
return err
if _plr == nil {
return fmt.Errorf("playerStop: _plr is nil")
}
plr := _plr.(*entity.Player)
// update chunking
server.updatePlayerPosition(plr, int(stop.IX), int(stop.IY), int(stop.IZ), plr.Angle)
@ -65,15 +65,14 @@ func (server *ShardServer) playerStop(peer *protocol.CNPeer, pkt protocol.Packet
})
}
func (server *ShardServer) playerJump(peer *protocol.CNPeer, pkt protocol.Packet) error {
func (server *ShardServer) playerJump(peer *protocol.CNPeer, _plr interface{}, pkt protocol.Packet) error {
var jump protocol.SP_CL2FE_REQ_PC_JUMP
pkt.Decode(&jump)
// sanity check
plr, err := server.getPlayer(peer)
if err != nil {
return err
if _plr == nil {
return fmt.Errorf("playerJump: _plr is nil")
}
plr := _plr.(*entity.Player)
// update chunking
server.updatePlayerPosition(plr, int(jump.IX), int(jump.IY), int(jump.IZ), plr.Angle)

136
shard/shardserver.go
View File

@ -1,60 +1,47 @@
package shard
import (
"fmt"
"log"
"net"
"sync"
"github.com/CPunch/gopenfusion/config"
"github.com/CPunch/gopenfusion/internal/db"
"github.com/CPunch/gopenfusion/internal/entity"
"github.com/CPunch/gopenfusion/internal/protocol"
"github.com/CPunch/gopenfusion/internal/protocol/pool"
"github.com/CPunch/gopenfusion/internal/redis"
"github.com/CPunch/gopenfusion/internal/service"
)
type PacketHandler func(peer *protocol.CNPeer, pkt protocol.Packet) error
type ShardServer struct {
listener net.Listener
port int
service *service.Service
dbHndlr *db.DBHandler
redisHndlr *redis.RedisHandler
eRecv chan *protocol.Event
packetHandlers map[uint32]PacketHandler
peers map[*protocol.CNPeer]*entity.Player
chunks map[entity.ChunkPosition]*entity.Chunk
peerLock sync.Mutex
}
func NewShardServer(dbHndlr *db.DBHandler, redisHndlr *redis.RedisHandler, port int) (*ShardServer, error) {
listener, err := net.Listen("tcp", fmt.Sprintf(":%d", port))
srvc, err := service.NewService("SHARD", port)
if err != nil {
return nil, err
}
server := &ShardServer{
listener: listener,
port: port,
service: srvc,
dbHndlr: dbHndlr,
redisHndlr: redisHndlr,
packetHandlers: make(map[uint32]PacketHandler),
peers: make(map[*protocol.CNPeer]*entity.Player),
chunks: make(map[entity.ChunkPosition]*entity.Chunk),
eRecv: make(chan *protocol.Event),
}
server.packetHandlers = map[uint32]PacketHandler{
protocol.P_CL2FE_REQ_PC_ENTER: server.RequestEnter,
protocol.P_CL2FE_REQ_PC_LOADING_COMPLETE: server.LoadingComplete,
protocol.P_CL2FE_REQ_PC_MOVE: server.playerMove,
protocol.P_CL2FE_REQ_PC_STOP: server.playerStop,
protocol.P_CL2FE_REQ_PC_JUMP: server.playerJump,
protocol.P_CL2FE_REQ_SEND_FREECHAT_MESSAGE: server.freeChat,
protocol.P_CL2FE_REQ_SEND_MENUCHAT_MESSAGE: server.menuChat,
protocol.P_CL2FE_REQ_PC_AVATAR_EMOTES_CHAT: server.emoteChat,
}
srvc.AddPacketHandler(protocol.P_CL2FE_REQ_PC_ENTER, server.RequestEnter)
srvc.AddPacketHandler(protocol.P_CL2FE_REQ_PC_LOADING_COMPLETE, server.LoadingComplete)
srvc.AddPacketHandler(protocol.P_CL2FE_REQ_PC_MOVE, server.playerMove)
srvc.AddPacketHandler(protocol.P_CL2FE_REQ_PC_STOP, server.playerStop)
srvc.AddPacketHandler(protocol.P_CL2FE_REQ_PC_JUMP, server.playerJump)
srvc.AddPacketHandler(protocol.P_CL2FE_REQ_SEND_FREECHAT_MESSAGE, server.freeChat)
srvc.AddPacketHandler(protocol.P_CL2FE_REQ_SEND_MENUCHAT_MESSAGE, server.menuChat)
srvc.AddPacketHandler(protocol.P_CL2FE_REQ_PC_AVATAR_EMOTES_CHAT, server.emoteChat)
srvc.OnConnect = server.onConnect
srvc.OnDisconnect = server.onDisconnect
redisHndlr.RegisterShard(redis.ShardMetadata{
IP: config.GetAnnounceIP(),
@ -64,97 +51,18 @@ func NewShardServer(dbHndlr *db.DBHandler, redisHndlr *redis.RedisHandler, port
return server, nil
}
func (server *ShardServer) handleEvents() {
for event := range server.eRecv {
switch event.Type {
case protocol.EVENT_CLIENT_DISCONNECT:
server.disconnect(event.Peer)
case protocol.EVENT_CLIENT_PACKET:
if err := server.handlePacket(event.Peer, event.PktID, protocol.NewPacket(event.Pkt)); err != nil {
event.Peer.Kill()
}
// the packet is given to us by the event, so we'll need to make sure to return it to the pool
pool.Put(event.Pkt)
}
}
}
func (server *ShardServer) Start() {
server.LoadNPCs()
server.service.Start()
}
log.Printf("Shard service hosted on %s:%d\n", config.GetAnnounceIP(), server.port)
go server.handleEvents()
for {
conn, err := server.listener.Accept()
if err != nil {
log.Println("Connection error: ", err)
return
}
client := protocol.NewCNPeer(server.eRecv, conn)
server.connect(client)
go client.Handler()
func (server *ShardServer) onDisconnect(peer *protocol.CNPeer, _plr interface{}) {
// remove from chunks
if _plr != nil {
server.removeEntity(_plr.(*entity.Player))
}
}
func (server *ShardServer) GetPort() int {
return server.port
}
func (server *ShardServer) handlePacket(peer *protocol.CNPeer, typeID uint32, pkt protocol.Packet) error {
if hndlr, ok := server.packetHandlers[typeID]; ok {
if err := hndlr(peer, pkt); err != nil {
return err
}
} else {
log.Printf("[WARN] unknown packet ID: %x\n", typeID)
}
func (server *ShardServer) onConnect(peer *protocol.CNPeer) interface{} {
return nil
}
func (server *ShardServer) disconnect(peer *protocol.CNPeer) {
server.peerLock.Lock()
defer server.peerLock.Unlock()
// remove from chunk(s)
plr, ok := server.peers[peer]
if ok {
log.Printf("Player %d (AccountID %d) disconnected\n", plr.PlayerID, plr.AccountID)
server.removeEntity(plr)
}
log.Printf("Peer %p disconnected from SHARD\n", peer)
delete(server.peers, peer)
}
func (server *ShardServer) connect(peer *protocol.CNPeer) {
server.peerLock.Lock()
defer server.peerLock.Unlock()
log.Printf("New peer %p connected to SHARD\n", peer)
server.peers[peer] = nil
}
func (server *ShardServer) getPlayer(peer *protocol.CNPeer) (*entity.Player, error) {
plr, ok := server.peers[peer]
if !ok {
return nil, fmt.Errorf("player not found")
}
return plr, nil
}
func (server *ShardServer) setPlayer(peer *protocol.CNPeer, plr *entity.Player) {
server.peers[peer] = plr
}
// If f returns false the iteration is stopped.
func (server *ShardServer) rangePeers(f func(peer *protocol.CNPeer, plr *entity.Player) bool) {
for peer, plr := range server.peers {
if f(peer, plr) {
return
}
}
}