protected void Send(AppPacket packet)
{
if (packet.Size > 512 - 7)
{
// Fragment
WriteLine("Fragment :(");
}
else
{
if (Debug)
{
//ForegroundColor = ConsoleColor.Green;
WriteLine($"Sending app packet (opcode {packet.Opcode:X04}, {this}):");
if (packet.Data == null)
{
WriteLine("!Null data!");
}
else
{
Hexdump(packet.Data);
}
//ResetColor();
}
var data = new byte[packet.Size];
data[1] = (byte)(packet.Opcode >> 8);
data[0] = (byte)packet.Opcode;
if (packet.Data != null)
{
Array.Copy(packet.Data, 0, data, 2, packet.Data.Length);
}
Send(new Packet(SessionOp.Single, data));
}
}
protected override void HandleSessionResponse(Packet packet)
{
Send(packet);
var data = new byte[464];
var str = $"{AccountID}\0{SessionKey}";
Array.Copy(Encoding.ASCII.GetBytes(str), data, str.Length);
Send(AppPacket.Create(WorldOp.SendLoginInfo, data));
}
public void UpdatePosition(Tuple <float, float, float, float> Position)
{
var update = new ClientPlayerPositionUpdate {
ID = PlayerSpawnId,
Sequence = UpdateSequence++,
X = Position.Item1,
Y = Position.Item2,
Sub1 = new ClientUpdatePositionSub1(),
Z = Position.Item3,
Sub2 = new ClientUpdatePositionSub2(0, (ushort)(Position.Item4 * 8f * 255f))
};
Send(AppPacket.Create(ZoneOp.ClientUpdate, update));
}
protected override void HandleAppPacket(AppPacket packet)
{
WriteLine($"Foo? {(WorldOp) packet.Opcode}");
switch ((WorldOp)packet.Opcode)
{
case WorldOp.GuildsList:
break;
case WorldOp.LogServer:
case WorldOp.ApproveWorld:
case WorldOp.EnterWorld:
case WorldOp.ExpansionInfo:
break;
case WorldOp.SendCharInfo:
var chars = new CharacterSelect(packet.Data);
CharacterList?.Invoke(this, chars.Characters);
break;
case WorldOp.MessageOfTheDay:
MOTD?.Invoke(this, Encoding.ASCII.GetString(packet.Data));
break;
case WorldOp.ZoneServerInfo:
var info = packet.Get <ZoneServerInfo>();
ZoneServer?.Invoke(this, info);
break;
case WorldOp.SetChatServer:
case WorldOp.SetChatServer2:
ChatServerList?.Invoke(this, packet.Data);
break;
case WorldOp.PostEnterWorld:
// The emu doesn't do anything with ApproveWorld and WorldClientReady so we may be able to just skip them both.
Send(AppPacket.Create(WorldOp.ApproveWorld));
Send(AppPacket.Create(WorldOp.WorldClientReady));
break;
case WorldOp.ApproveName:
CharacterCreateNameApproval?.Invoke(this, packet.Data[0] == 1);
break;
default:
WriteLine($"Unhandled packet in WorldStream: {(WorldOp) packet.Opcode} (0x{packet.Opcode:X04})");
Hexdump(packet.Data);
break;
}
}
protected override void HandleAppPacket(AppPacket packet)
{
switch ((LoginOp)packet.Opcode)
{
case LoginOp.ChatMessage:
Send(AppPacket.Create(LoginOp.Login, new Login(), CryptoBlob));
break;
case LoginOp.LoginAccepted:
if (packet.Data.Length < 90)
{
LoginSuccess?.Invoke(this, false);
}
else
{
var dec = Decrypt(packet.Data, 10);
var rep = new LoginReply(dec);
AccountID = rep.AcctID;
SessionKey = rep.Key;
LoginSuccess?.Invoke(this, true);
}
break;
case LoginOp.ServerListResponse:
var header = packet.Get <ServerListHeader>();
ServerList?.Invoke(this, header.Servers);
break;
case LoginOp.PlayEverquestResponse:
var resp = packet.Get <PlayResponse>();
if (!resp.Allowed)
{
CurPlay = null;
}
PlaySuccess?.Invoke(this, CurPlay);
break;
default:
WriteLine($"Unhandled packet in LoginStream: {(LoginOp) packet.Opcode} (0x{packet.Opcode:X04})");
Hexdump(packet.Data);
break;
}
}
void HandleAppPacketProxy(AppPacket packet)
{
if (Debug)
{
//ForegroundColor = ConsoleColor.Magenta;
WriteLine($"Received app packet (opcode {packet.Opcode:X04}, {this}):");
if (packet.Data == null)
{
WriteLine("!Null data!");
}
else
{
Hexdump(packet.Data);
}
//ResetColor();
}
HandleAppPacket(packet);
}
protected override void HandleSessionResponse(Packet packet) => Send(AppPacket.Create(LoginOp.SessionReady, new SessionReady()));
public void Play(ServerListElement server)
{
CurPlay = server;
Send(AppPacket.Create(LoginOp.PlayEverquestRequest, new PlayRequest(5, server.RuntimeID)));
}
public void RequestServerList() =>
Send(AppPacket.Create(LoginOp.ServerListRequest, new byte[] { 0, 0, 0, 0 }));
protected abstract void HandleAppPacket(AppPacket packet);
bool ProcessPacket(Packet packet, bool self = false)
{
switch ((SessionOp)packet.Opcode)
{
case SessionOp.Bare:
var bapp = new AppPacket(packet.Data);
HandleAppPacketProxy(bapp);
break;
case SessionOp.Single:
futurePackets[packet.Sequence] = null;
var app = new AppPacket(packet.Data);
HandleAppPacketProxy(app);
InSequence = (ushort)((packet.Sequence + 1) % 65536);
if (Debug)
{
WriteLine($"Single packet updated sequence from {packet.Sequence} to {InSequence}");
}
break;
case SessionOp.Fragment:
var tlen = packet.Data.NetU32(0);
var rlen = -4;
for (var i = packet.Sequence; futurePackets[i] != null && rlen < tlen; ++i)
{
rlen += futurePackets[i].Data.Length;
}
if (rlen < tlen)
{
// Don't have all the pieces yet
futurePackets[packet.Sequence] = packet;
return(false);
}
var tdata = new byte[rlen];
rlen = 0;
var last = 0;
for (var i = packet.Sequence; rlen < tlen; ++i)
{
var off = i == packet.Sequence ? 4 : 0;
var fdata = futurePackets[i % 65536].Data;
Array.Copy(fdata, off, tdata, rlen, fdata.Length - off);
rlen += fdata.Length - off;
futurePackets[i] = null;
last = i;
}
InSequence = (ushort)((last + 1) % 65536);
if (Debug)
{
WriteLine(
$"Fragmented packet updated our sequence from {packet.Sequence} to {InSequence} ({last - packet.Sequence} packets)");
}
HandleAppPacketProxy(new AppPacket(tdata));
break;
}
while (!self && futurePackets[InSequence] != null)
{
if (!ProcessPacket(futurePackets[InSequence], self: true))
{
break;
}
}
return(true);
}
public void SendEnterWorld(EnterWorld enterWorld)
{
Send(AppPacket.Create(WorldOp.EnterWorld, enterWorld));
}
public void SendCharacterCreate(CharCreate charCreate)
{
Send(AppPacket.Create(WorldOp.CharacterCreate, charCreate));
}
public void SendNameApproval(NameApproval nameApproval)
{
Send(AppPacket.Create(WorldOp.ApproveName, nameApproval));
}
protected override void HandleAppPacket(AppPacket packet)
{
//WriteLine($"Zone app packet: {(ZoneOp) packet.Opcode}");
switch ((ZoneOp)packet.Opcode)
{
case ZoneOp.PlayerProfile:
var player = packet.Get <PlayerProfile>();
//WriteLine(player);
break;
case ZoneOp.TimeOfDay:
var timeofday = packet.Get <TimeOfDay>();
//WriteLine(timeofday);
break;
case ZoneOp.TaskActivity:
// XXX: Handle short activities!
//var activity = packet.Get<TaskActivity>();
//WriteLine(activity);
break;
case ZoneOp.TaskDescription:
var desc = packet.Get <TaskDescription>();
//WriteLine(desc);
break;
case ZoneOp.CompletedTasks:
var comp = packet.Get <CompletedTasks>();
//WriteLine(comp);
break;
case ZoneOp.XTargetResponse:
var xt = packet.Get <XTarget>();
//WriteLine(xt);
break;
case ZoneOp.Weather:
var weather = packet.Get <Weather>();
//WriteLine(weather);
if (Entering)
{
Send(AppPacket.Create(ZoneOp.ReqNewZone));
}
break;
case ZoneOp.TributeTimer:
var timer = packet.Get <TributeTimer>();
//WriteLine(timer);
break;
case ZoneOp.TributeUpdate:
var update = packet.Get <TributeInfo>();
//WriteLine(update);
break;
case ZoneOp.ZoneEntry:
var mob = packet.Get <Spawn>();
if (mob.Name == CharName)
{
PlayerSpawnId = (ushort)mob.SpawnID;
}
Spawned?.Invoke(this, mob);
break;
case ZoneOp.NewZone:
Send(AppPacket.Create(ZoneOp.ReqClientSpawn));
break;
case ZoneOp.SendExpZonein:
if (Entering)
{
Send(AppPacket.Create(ZoneOp.ClientReady));
Entering = false;
}
break;
case ZoneOp.CharInventory:
break;
case ZoneOp.SendFindableNPCs:
var npc = packet.Get <FindableNPC>();
//WriteLine(npc);
break;
case ZoneOp.ClientUpdate:
var pu = packet.Get <PlayerPositionUpdate>();
PositionUpdated?.Invoke(this, pu);
break;
case ZoneOp.HPUpdate:
break;
case ZoneOp.SpawnDoor:
for (var i = 0; i < packet.Data.Length; i += 92)
{
var door = new Door(packet.Data, i);
WriteLine(door);
}
break;
default:
WriteLine($"Unhandled packet in ZoneStream: {(ZoneOp) packet.Opcode} (0x{packet.Opcode:X04})");
Hexdump(packet.Data);
break;
}
}
protected override void HandleSessionResponse(Packet packet)
{
Send(packet);
Send(AppPacket.Create(ZoneOp.ZoneEntry, new ClientZoneEntry(CharName)));
}
