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absolute minimal login server

This commit is contained in:
CPunch 2023-03-07 02:06:40 -06:00
parent 8f3f31d354
commit 4d0bd4b1c1
3 changed files with 49 additions and 24 deletions
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8
protocol/packet.go
View File

@ -3,7 +3,6 @@ package protocol
import (
"encoding/binary"
"fmt"
"log"
"reflect"
"strconv"
"unicode/utf16"
@ -78,7 +77,7 @@ func (pkt *Packet) readByte() byte {
}
func (pkt *Packet) encodeStructField(field reflect.StructField, value reflect.Value) {
log.Printf("Encoding '%s', current cursor: %d", field.Name, len(pkt.Buf))
// log.Printf("Encoding '%s', current cursor: %d", field.Name, len(pkt.Buf))
switch field.Type.Kind() {
case reflect.String: // all strings in fusionfall packets are encoded as utf16, we'll need to encode it
@ -102,7 +101,6 @@ func (pkt *Packet) encodeStructField(field reflect.StructField, value reflect.Va
}
}
log.Printf("sending %d", len(buf))
pkt.Write(buf)
default:
pkt.Encode(value.Addr().Interface())
@ -168,7 +166,7 @@ func (pkt *Packet) Encode(data interface{}) {
}
func (pkt *Packet) decodeStructField(field reflect.StructField, value reflect.Value) {
log.Printf("Decoding '%s', current cursor: %d", field.Name, pkt.cursor)
// log.Printf("Decoding '%s', current cursor: %d", field.Name, pkt.cursor)
switch field.Type.Kind() {
case reflect.String: // all strings in fusionfall packets are encoded as utf16, we'll need to decode it
@ -193,7 +191,6 @@ func (pkt *Packet) decodeStructField(field reflect.StructField, value reflect.Va
}
str := string(utf16.Decode(buf16[:realSize]))
log.Printf(" got: %#.v or '%s'", buf16, str)
value.SetString(str)
default:
pkt.Decode(value.Addr().Interface())
@ -222,7 +219,6 @@ func (pkt *Packet) Decode(data interface{}) {
sz := rv.Len()
// decode data
log.Print("reading array length ", sz, " cursor: ", pkt.cursor)
for i := 0; i < sz; i++ {
elem := rv.Index(i)
pkt.Decode(elem.Addr().Interface())

31
server/client.go
View File

@ -61,19 +61,13 @@ func (client *Client) Send(data interface{}, typeID uint32) {
if _, err := client.conn.Write(tmp); err != nil {
panic(fmt.Errorf("[FATAL] failed to write packet body! %v", err))
}
log.Printf("sent!")
}
func (client *Client) Login(pkt *protocol.Packet) {
var loginPkt protocol.SP_CL2LS_REQ_LOGIN
pkt.Decode(&loginPkt)
log.Printf("Got packet: %#v", loginPkt)
// !! TODO
func (client *Client) AcceptLogin(SZID string, IClientVerC int32, ISlotNum int8, data []protocol.SP_LS2CL_REP_CHAR_INFO) {
resp := &protocol.SP_LS2CL_REP_LOGIN_SUCC{
SZID: loginPkt.SZID,
ICharCount: 0,
ISlotNum: 1,
SZID: SZID,
ICharCount: int8(len(data)),
ISlotNum: ISlotNum,
IPaymentFlag: 1,
IOpenBetaFlag: 0,
UISvrTime: uint64(time.Now().Unix()),
@ -87,9 +81,14 @@ func (client *Client) Login(pkt *protocol.Packet) {
)
client.fe_key = protocol.CreateNewKey(
binary.LittleEndian.Uint64([]byte(protocol.DEFAULT_KEY)),
uint64(loginPkt.IClientVerC),
uint64(IClientVerC),
1,
)
// send characters (if any)
for i := 0; i < len(data); i++ {
client.Send(data[i], protocol.P_LS2CL_REP_CHAR_INFO)
}
}
func (client *Client) ClientHandler() {
@ -121,16 +120,12 @@ func (client *Client) ClientHandler() {
// decrypt && grab typeID
protocol.DecryptData(tmp[:sz], client.e_key)
typeID := int(binary.LittleEndian.Uint32(tmp[:4]))
typeID := uint32(binary.LittleEndian.Uint32(tmp[:4]))
// dispatch packet
log.Printf("Got packet ID: %x, with a sizeof: %d\n", typeID, sz)
pkt := protocol.NewPacket(tmp[4:sz])
switch typeID {
case protocol.P_CL2LS_REQ_LOGIN:
client.Login(pkt)
default:
log.Printf("[WARN] unsupported packet ID: %x\n", typeID)
}
client.server.handlePacket(client, typeID, pkt)
// reset tmp
tmp = tmp[:4]

34
server/server.go
View File

@ -4,6 +4,8 @@ import (
"fmt"
"log"
"net"
"github.com/CPunch/GopenFusion/protocol"
)
type Server struct {
@ -48,6 +50,38 @@ func (server *Server) Start() {
}
}
func (server *Server) handlePacket(client *Client, typeID uint32, pkt *protocol.Packet) {
switch typeID {
case protocol.P_CL2LS_REQ_LOGIN:
var loginPkt protocol.SP_CL2LS_REQ_LOGIN
pkt.Decode(&loginPkt)
// TODO: for now, we're a dummy server
client.AcceptLogin(loginPkt.SZID, loginPkt.IClientVerC, 1, []protocol.SP_LS2CL_REP_CHAR_INFO{})
case protocol.P_CL2LS_REQ_CHECK_CHAR_NAME:
var charPkt protocol.SP_CL2LS_REQ_CHECK_CHAR_NAME
pkt.Decode(&charPkt)
client.Send(&protocol.SP_LS2CL_REP_CHECK_CHAR_NAME_SUCC{
SZFirstName: charPkt.SZFirstName,
SZLastName: charPkt.SZLastName,
}, protocol.P_LS2CL_REP_CHECK_CHAR_NAME_SUCC)
case protocol.P_CL2LS_REQ_SAVE_CHAR_NAME:
var charPkt protocol.SP_CL2LS_REQ_SAVE_CHAR_NAME
pkt.Decode(&charPkt)
client.Send(&protocol.SP_LS2CL_REP_SAVE_CHAR_NAME_SUCC{
IPC_UID: 1,
ISlotNum: charPkt.ISlotNum,
IGender: charPkt.IGender,
SZFirstName: charPkt.SZFirstName,
SZLastName: charPkt.SZLastName,
}, protocol.P_LS2CL_REP_SAVE_CHAR_NAME_SUCC)
default:
log.Printf("[WARN] unsupported packet ID: %x\n", typeID)
}
}
func main() {
server := newServer()
server.Start()