func handlePacketID1(player *Player, ps protocol.PacketStream) error {
if ps.GetRemainingBytes() == 0 {
return nil
}
status, found := statuses[player.Hostname]
if !found {
status = &ping.Status{
ShowConnection: false,
}
}
return ping.HandlePingPacket(ps.Stream, *status)
}
func handlePacketID0(player *Player, ps protocol.PacketStream) error {
if ps.GetRemainingBytes() == 0 {
if player.State != 1 {
return nil
}
status, found := statuses[player.Hostname]
if !found {
player.ShouldClose = true
return nil
}
err := ping.WriteHandshakeResponse(ps.Stream, *status)
if err != nil {
return err
}
return nil
}
switch player.State {
case 1:
handshake, err := ping.ReadHandshakePacket(ps.Stream)
if err != nil {
log.Println("beacon: Handshake packet read error:", err)
}
player.Hostname = strings.ToLower(handshake.ServerAddress)
if address, found := forwarders[player.Hostname]; found {
// Write the handshake data
initialPacket := protocol.NewPacketWithID(0x00)
initialPacket.WriteVarInt(handshake.ProtocolNumber)
initialPacket.WriteString(handshake.ServerAddress)
initialPacket.WriteUInt16(handshake.ServerPort)
initialPacket.WriteVarInt(handshake.NextState)
player.InitialPacket = initialPacket
player.ForwardAddress = address
player.State = handshake.NextState
return nil
}
if handshake.NextState == 1 {
player.State = 1
} else if handshake.NextState == 2 {
player.State = 2
}
case 2:
username, err := ps.ReadString()
if err != nil {
return err
}
player.Username = username
handler, found := handlers[player.Hostname]
if !found {
log.Println("beacon: Missing handler for hostname: " +
player.Hostname)
err := ping.DisplayMessage(ps.Stream,
"Connection rejected. There is no server on this hostname.")
if err != nil {
return err
}
return nil
}
err = ping.DisplayMessage(ps.Stream, handler(player))
if err != nil {
return err
}
}
return nil
}