/// <summary>
/// Do the Minecraft login.
/// </summary>
/// <returns>True if login successful</returns>
public bool Login()
{
byte[] protocol_version = dataTypes.GetVarInt(protocolversion);
string server_address = pForge.GetServerAddress(handler.GetServerHost());
byte[] server_port = BitConverter.GetBytes((ushort)handler.GetServerPort()); Array.Reverse(server_port);
byte[] next_state = dataTypes.GetVarInt(2);
byte[] handshake_packet = dataTypes.ConcatBytes(protocol_version, dataTypes.GetString(server_address), server_port, next_state);
SendPacket(0x00, handshake_packet);
byte[] login_packet = dataTypes.GetString(handler.GetUsername());
SendPacket(0x00, login_packet);
int packetID = -1;
List <byte> packetData = new List <byte>();
while (true)
{
ReadNextPacket(ref packetID, packetData);
if (packetID == 0x00) //Login rejected
{
handler.OnConnectionLost(ChatBot.DisconnectReason.LoginRejected, ChatParser.ParseText(dataTypes.ReadNextString(packetData)));
return(false);
}
else if (packetID == 0x01) //Encryption request
{
string serverID = dataTypes.ReadNextString(packetData);
byte[] Serverkey = dataTypes.ReadNextByteArray(packetData);
byte[] token = dataTypes.ReadNextByteArray(packetData);
return(StartEncryption(handler.GetUserUUID(), handler.GetSessionID(), token, serverID, Serverkey));
}
else if (packetID == 0x02) //Login successful
{
ConsoleIO.WriteLineFormatted("§8Server is in offline mode.");
login_phase = false;
if (!pForge.CompleteForgeHandshake())
{
return(false);
}
StartUpdating();
return(true); //No need to check session or start encryption
}
else
{
HandlePacket(packetID, packetData);
}
}
}
/// <summary>
/// Handle Forge plugin messages
/// </summary>
/// <param name="channel">Plugin message channel</param>
/// <param name="packetData">Plugin message data</param>
/// <param name="currentDimension">Current world dimension</param>
/// <returns>TRUE if the plugin message was recognized and handled</returns>
public bool HandlePluginMessage(string channel, List <byte> packetData, ref int currentDimension)
{
if (ForgeEnabled() && fmlHandshakeState != FMLHandshakeClientState.DONE)
{
if (channel == "FML|HS")
{
FMLHandshakeDiscriminator discriminator = (FMLHandshakeDiscriminator)dataTypes.ReadNextByte(packetData);
if (discriminator == FMLHandshakeDiscriminator.HandshakeReset)
{
fmlHandshakeState = FMLHandshakeClientState.START;
return(true);
}
switch (fmlHandshakeState)
{
case FMLHandshakeClientState.START:
if (discriminator != FMLHandshakeDiscriminator.ServerHello)
{
return(false);
}
// Send the plugin channel registration.
// REGISTER is somewhat special in that it doesn't actually include length information,
// and is also \0-separated.
// Also, yes, "FML" is there twice. Don't ask me why, but that's the way forge does it.
string[] channels = { "FML|HS", "FML", "FML|MP", "FML", "FORGE" };
protocol18.SendPluginChannelPacket("REGISTER", Encoding.UTF8.GetBytes(string.Join("\0", channels)));
byte fmlProtocolVersion = dataTypes.ReadNextByte(packetData);
if (Settings.DebugMessages)
{
ConsoleIO.WriteLineFormatted("§8Forge protocol version : " + fmlProtocolVersion);
}
if (fmlProtocolVersion >= 1)
{
currentDimension = dataTypes.ReadNextInt(packetData);
}
// Tell the server we're running the same version.
SendForgeHandshakePacket(FMLHandshakeDiscriminator.ClientHello, new byte[] { fmlProtocolVersion });
// Then tell the server that we're running the same mods.
if (Settings.DebugMessages)
{
ConsoleIO.WriteLineFormatted("§8Sending falsified mod list to server...");
}
byte[][] mods = new byte[forgeInfo.Mods.Count][];
for (int i = 0; i < forgeInfo.Mods.Count; i++)
{
ForgeInfo.ForgeMod mod = forgeInfo.Mods[i];
mods[i] = dataTypes.ConcatBytes(dataTypes.GetString(mod.ModID), dataTypes.GetString(mod.Version));
}
SendForgeHandshakePacket(FMLHandshakeDiscriminator.ModList,
dataTypes.ConcatBytes(dataTypes.GetVarInt(forgeInfo.Mods.Count), dataTypes.ConcatBytes(mods)));
fmlHandshakeState = FMLHandshakeClientState.WAITINGSERVERDATA;
return(true);
case FMLHandshakeClientState.WAITINGSERVERDATA:
if (discriminator != FMLHandshakeDiscriminator.ModList)
{
return(false);
}
Thread.Sleep(2000);
if (Settings.DebugMessages)
{
ConsoleIO.WriteLineFormatted("§8Accepting server mod list...");
}
// Tell the server that yes, we are OK with the mods it has
// even though we don't actually care what mods it has.
SendForgeHandshakePacket(FMLHandshakeDiscriminator.HandshakeAck,
new byte[] { (byte)FMLHandshakeClientState.WAITINGSERVERDATA });
fmlHandshakeState = FMLHandshakeClientState.WAITINGSERVERCOMPLETE;
return(false);
case FMLHandshakeClientState.WAITINGSERVERCOMPLETE:
// The server now will tell us a bunch of registry information.
// We need to read it all, though, until it says that there is no more.
if (discriminator != FMLHandshakeDiscriminator.RegistryData)
{
return(false);
}
if (protocolversion < Protocol18Handler.MC18Version)
{
// 1.7.10 and below have one registry
// with blocks and items.
int registrySize = dataTypes.ReadNextVarInt(packetData);
if (Settings.DebugMessages)
{
ConsoleIO.WriteLineFormatted("§8Received registry with " + registrySize + " entries");
}
fmlHandshakeState = FMLHandshakeClientState.PENDINGCOMPLETE;
}
else
{
// 1.8+ has more than one registry.
bool hasNextRegistry = dataTypes.ReadNextBool(packetData);
string registryName = dataTypes.ReadNextString(packetData);
int registrySize = dataTypes.ReadNextVarInt(packetData);
if (Settings.DebugMessages)
{
ConsoleIO.WriteLineFormatted("§8Received registry " + registryName + " with " + registrySize + " entries");
}
if (!hasNextRegistry)
{
fmlHandshakeState = FMLHandshakeClientState.PENDINGCOMPLETE;
}
}
return(false);
case FMLHandshakeClientState.PENDINGCOMPLETE:
// The server will ask us to accept the registries.
// Just say yes.
if (discriminator != FMLHandshakeDiscriminator.HandshakeAck)
{
return(false);
}
if (Settings.DebugMessages)
{
ConsoleIO.WriteLineFormatted("§8Accepting server registries...");
}
SendForgeHandshakePacket(FMLHandshakeDiscriminator.HandshakeAck,
new byte[] { (byte)FMLHandshakeClientState.PENDINGCOMPLETE });
fmlHandshakeState = FMLHandshakeClientState.COMPLETE;
return(true);
case FMLHandshakeClientState.COMPLETE:
// One final "OK". On the actual forge source, a packet is sent from
// the client to the client saying that the connection was complete, but
// we don't need to do that.
SendForgeHandshakePacket(FMLHandshakeDiscriminator.HandshakeAck,
new byte[] { (byte)FMLHandshakeClientState.COMPLETE });
if (Settings.DebugMessages)
{
ConsoleIO.WriteLine("Forge server connection complete!");
}
fmlHandshakeState = FMLHandshakeClientState.DONE;
return(true);
}
}
}
return(false);
}
/// <summary>
/// Ping a Minecraft server to get information about the server
/// </summary>
/// <returns>True if ping was successful</returns>
public static bool doPing(string host, int port, ref int protocolversion, ref ForgeInfo forgeInfo)
{
string version = "";
TcpClient tcp = ProxyHandler.newTcpClient(host, port);
tcp.ReceiveBufferSize = 1024 * 1024;
SocketWrapper socketWrapper = new SocketWrapper(tcp);
DataTypes dataTypes = new DataTypes(MC18Version);
byte[] packet_id = dataTypes.GetVarInt(0);
byte[] protocol_version = dataTypes.GetVarInt(-1);
byte[] server_port = BitConverter.GetBytes((ushort)port); Array.Reverse(server_port);
byte[] next_state = dataTypes.GetVarInt(1);
byte[] packet = dataTypes.ConcatBytes(packet_id, protocol_version, dataTypes.GetString(host), server_port, next_state);
byte[] tosend = dataTypes.ConcatBytes(dataTypes.GetVarInt(packet.Length), packet);
socketWrapper.SendDataRAW(tosend);
byte[] status_request = dataTypes.GetVarInt(0);
byte[] request_packet = dataTypes.ConcatBytes(dataTypes.GetVarInt(status_request.Length), status_request);
socketWrapper.SendDataRAW(request_packet);
int packetLength = dataTypes.ReadNextVarIntRAW(socketWrapper);
if (packetLength > 0) //Read Response length
{
List <byte> packetData = new List <byte>(socketWrapper.ReadDataRAW(packetLength));
if (dataTypes.ReadNextVarInt(packetData) == 0x00) //Read Packet ID
{
string result = dataTypes.ReadNextString(packetData); //Get the Json data
if (!String.IsNullOrEmpty(result) && result.StartsWith("{") && result.EndsWith("}"))
{
Json.JSONData jsonData = Json.ParseJson(result);
if (jsonData.Type == Json.JSONData.DataType.Object && jsonData.Properties.ContainsKey("version"))
{
Json.JSONData versionData = jsonData.Properties["version"];
//Retrieve display name of the Minecraft version
if (versionData.Properties.ContainsKey("name"))
{
version = versionData.Properties["name"].StringValue;
}
//Retrieve protocol version number for handling this server
if (versionData.Properties.ContainsKey("protocol"))
{
protocolversion = dataTypes.Atoi(versionData.Properties["protocol"].StringValue);
}
// Check for forge on the server.
Protocol18Forge.ServerInfoCheckForge(jsonData, ref forgeInfo);
ConsoleIO.WriteLineFormatted("§8Server version : " + version + " (protocol v" + protocolversion + (forgeInfo != null ? ", with Forge)." : ")."));
return(true);
}
}
}
}
return(false);
}
