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server: split LoginServer, new Server interface

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This commit is contained in:
CPunch 2023-03-07 14:47:49 -06:00
parent 468e426a82
commit b639346605
6 changed files with 106 additions and 91 deletions
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2
README.md
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@ -1,6 +1,6 @@
# gopenfusion # gopenfusion
A toy fusionfall packet protocol implementation written in Go. A toy implementation of the Fusionfall Packet Protocol written in Go.
## Generating structures ## Generating structures

4
build.sh
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@ -1,7 +1,5 @@
#!/bin/sh #!/bin/sh
mkdir -p bin mkdir -p bin
cd server go build -o ./bin/server
go build -o ../bin/server
cd ../
echo 'Done' echo 'Done'

8
main.go Normal file
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@ -0,0 +1,8 @@
package main
import "github.com/CPunch/GopenFusion/server"
func main() {
server := server.NewLoginServer()
server.Start()
}

10
server/client.go
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@ -1,4 +1,4 @@
package main package server
import ( import (
"encoding/binary" "encoding/binary"
@ -16,14 +16,14 @@ const (
) )
type Client struct { type Client struct {
server *Server server Server
conn net.Conn conn net.Conn
e_key []byte e_key []byte
fe_key []byte fe_key []byte
whichKey int whichKey int
} }
func newClient(server *Server, conn net.Conn) *Client { func newClient(server Server, conn net.Conn) *Client {
return &Client{ return &Client{
server: server, server: server,
conn: conn, conn: conn,
@ -97,7 +97,7 @@ func (client *Client) ClientHandler() {
log.Printf("Client %p panic'd! %v", client, err) log.Printf("Client %p panic'd! %v", client, err)
} }
client.conn.Close() client.conn.Close()
client.server.unregister <- client client.server.Disconnect(client)
}() }()
tmp := make([]byte, 4, protocol.CN_PACKET_BUFFER_SIZE) tmp := make([]byte, 4, protocol.CN_PACKET_BUFFER_SIZE)
@ -125,7 +125,7 @@ func (client *Client) ClientHandler() {
// dispatch packet // dispatch packet
log.Printf("Got packet ID: %x, with a sizeof: %d\n", typeID, sz) log.Printf("Got packet ID: %x, with a sizeof: %d\n", typeID, sz)
pkt := protocol.NewPacket(tmp[4:sz]) pkt := protocol.NewPacket(tmp[4:sz])
client.server.handlePacket(client, typeID, pkt) client.server.HandlePacket(client, typeID, pkt)
// reset tmp // reset tmp
tmp = tmp[:4] tmp = tmp[:4]

87
server/loginserver.go Normal file
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@ -0,0 +1,87 @@
package server
import (
"fmt"
"log"
"net"
"github.com/CPunch/GopenFusion/protocol"
)
type LoginServer struct {
listener net.Listener
clients map[*Client]bool
unregister chan *Client
}
func NewLoginServer() *LoginServer {
listener, err := net.Listen("tcp", ":23000")
if err != nil {
log.Fatal(err)
}
return &LoginServer{
listener: listener,
clients: make(map[*Client]bool),
unregister: make(chan *Client),
}
}
func (server *LoginServer) Start() {
log.Print("Server hosted on 127.0.0.1:23000")
for {
select {
case client := <-server.unregister:
delete(server.clients, client)
fmt.Printf("Client %p disconnected\n", client)
default:
conn, err := server.listener.Accept()
if err != nil {
log.Println("Connection error: ", err)
return
}
client := newClient(server, conn)
server.clients[client] = true
go client.ClientHandler()
fmt.Printf("Client %p connected\n", client)
}
}
}
func (server *LoginServer) 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 (server *LoginServer) Disconnect(client *Client) {
server.unregister <- client
}

86
server/server.go
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@ -1,88 +1,10 @@
package main package server
import ( import (
"fmt"
"log"
"net"
"github.com/CPunch/GopenFusion/protocol" "github.com/CPunch/GopenFusion/protocol"
) )
type Server struct { type Server interface {
listener net.Listener HandlePacket(client *Client, typeID uint32, pkt *protocol.Packet)
clients map[*Client]bool Disconnect(client *Client)
unregister chan *Client
}
func newServer() *Server {
listener, err := net.Listen("tcp", ":23000")
if err != nil {
log.Fatal(err)
}
return &Server{
listener: listener,
clients: make(map[*Client]bool),
unregister: make(chan *Client),
}
}
func (server *Server) Start() {
log.Print("Server hosted on 127.0.0.1:23000")
for {
select {
case client := <-server.unregister:
delete(server.clients, client)
fmt.Printf("Client %p disconnected\n", client)
default:
conn, err := server.listener.Accept()
if err != nil {
log.Println("Connection error: ", err)
return
}
client := newClient(server, conn)
server.clients[client] = true
go client.ClientHandler()
fmt.Printf("Client %p connected\n", client)
}
}
}
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()
} }