protected void DecodeCert(McpeLogin message)
{
byte[] buffer = message.payload;
if (message.payload.Length != buffer.Length)
{
Log.Debug($"Wrong lenght {message.payload.Length} != {message.payload.Length}");
throw new Exception($"Wrong lenght {message.payload.Length} != {message.payload.Length}");
}
if (Log.IsDebugEnabled)
{
Log.Debug("Lenght: " + message.payload.Length + ", Message: " + Convert.ToBase64String(buffer));
}
string certificateChain;
string skinData;
try
{
var destination = new MemoryStream(buffer);
destination.Position = 0;
NbtBinaryReader reader = new NbtBinaryReader(destination, false);
var countCertData = reader.ReadInt32();
certificateChain = Encoding.UTF8.GetString(reader.ReadBytes(countCertData));
if (Log.IsDebugEnabled)
{
Log.Debug($"Certificate Chain (Lenght={countCertData})\n{certificateChain}");
}
var countSkinData = reader.ReadInt32();
skinData = Encoding.UTF8.GetString(reader.ReadBytes(countSkinData));
if (Log.IsDebugEnabled)
{
Log.Debug($"Skin data (Lenght={countSkinData})\n{skinData}");
}
}
catch (Exception e)
{
Log.Error("Parsing login", e);
return;
}
try
{
{
IDictionary <string, dynamic> headers = JWT.Headers(skinData);
dynamic payload = JObject.Parse(JWT.Payload(skinData));
if (Log.IsDebugEnabled)
{
Log.Debug($"Skin JWT Header: {string.Join(";", headers)}");
}
if (Log.IsDebugEnabled)
{
Log.Debug($"Skin JWT Payload:\n{payload.ToString()}");
}
try
{
_playerInfo.ClientId = payload.ClientRandomId;
_playerInfo.CurrentInputMode = payload.CurrentInputMode;
_playerInfo.DefaultInputMode = payload.DefaultInputMode;
_playerInfo.DeviceModel = payload.DeviceModel;
_playerInfo.DeviceOS = payload.DeviceOS;
_playerInfo.GameVersion = payload.GameVersion;
_playerInfo.GuiScale = payload.GuiScale;
_playerInfo.LanguageCode = payload.LanguageCode;
_playerInfo.ServerAddress = payload.ServerAddress;
_playerInfo.UIProfile = payload.UIProfile;
_playerInfo.Skin = new Skin()
{
CapeData = Convert.FromBase64String((string)payload.CapeData),
SkinId = payload.SkinId,
SkinData = Convert.FromBase64String((string)payload.SkinData),
SkinGeometryName = payload.SkinGeometryName,
SkinGeometry = Convert.FromBase64String((string)payload.SkinGeometry),
};
Log.Warn($"Cape data lenght={_playerInfo.Skin.CapeData.Length}");
}
catch (Exception e)
{
Log.Error("Parsing skin data", e);
}
}
{
dynamic json = JObject.Parse(certificateChain);
if (Log.IsDebugEnabled)
{
Log.Debug($"Certificate JSON:\n{json}");
}
JArray chain = json.chain;
//var chainArray = chain.ToArray();
string validationKey = null;
string identityPublicKey = null;
foreach (JToken token in chain)
{
IDictionary <string, dynamic> headers = JWT.Headers(token.ToString());
if (Log.IsDebugEnabled)
{
Log.Debug("Raw chain element:\n" + token.ToString());
Log.Debug($"JWT Header: {string.Join(";", headers)}");
dynamic jsonPayload = JObject.Parse(JWT.Payload(token.ToString()));
Log.Debug($"JWT Payload:\n{jsonPayload}");
}
// Mojang root x5u cert (string): MHYwEAYHKoZIzj0CAQYFK4EEACIDYgAE8ELkixyLcwlZryUQcu1TvPOmI2B7vX83ndnWRUaXm74wFfa5f/lwQNTfrLVHa2PmenpGI6JhIMUJaWZrjmMj90NoKNFSNBuKdm8rYiXsfaz3K36x/1U26HpG0ZxK/V1V
if (!headers.ContainsKey("x5u"))
{
continue;
}
string x5u = headers["x5u"];
if (identityPublicKey == null)
{
if (CertificateData.MojangRootKey.Equals(x5u, StringComparison.InvariantCultureIgnoreCase))
{
Log.Debug("Key is ok, and got Mojang root");
}
else if (chain.Count > 1)
{
Log.Debug("Got client cert (client root)");
continue;
}
else if (chain.Count == 1)
{
Log.Debug("Selfsigned chain");
}
}
else if (identityPublicKey.Equals(x5u))
{
Log.Debug("Derived Key is ok");
}
if (Log.IsDebugEnabled)
{
Log.Debug($"x5u cert (string): {x5u}");
ECDiffieHellmanPublicKey publicKey = CryptoUtils.CreateEcDiffieHellmanPublicKey(x5u);
Log.Debug($"Cert:\n{publicKey.ToXmlString()}");
}
// Validate
CngKey newKey = CryptoUtils.ImportECDsaCngKeyFromString(x5u);
CertificateData data = JWT.Decode <CertificateData>(token.ToString(), newKey);
if (data != null)
{
identityPublicKey = data.IdentityPublicKey;
if (Log.IsDebugEnabled)
{
Log.Debug("Decoded token success");
}
if (CertificateData.MojangRootKey.Equals(x5u, StringComparison.InvariantCultureIgnoreCase))
{
Log.Debug("Got Mojang key. Is valid = " + data.CertificateAuthority);
validationKey = data.IdentityPublicKey;
}
else if (validationKey != null && validationKey.Equals(x5u, StringComparison.InvariantCultureIgnoreCase))
{
_playerInfo.CertificateData = data;
}
else
{
if (data.ExtraData == null)
{
continue;
}
// Self signed, make sure they don't fake XUID
if (data.ExtraData.Xuid != null)
{
Log.Warn("Received fake XUID from " + data.ExtraData.DisplayName);
data.ExtraData.Xuid = null;
}
_playerInfo.CertificateData = data;
}
}
else
{
Log.Error("Not a valid Identity Public Key for decoding");
}
}
//TODO: Implement disconnect here
{
_playerInfo.Username = _playerInfo.CertificateData.ExtraData.DisplayName;
_session.Username = _playerInfo.Username;
string identity = _playerInfo.CertificateData.ExtraData.Identity;
if (Log.IsDebugEnabled)
{
Log.Debug($"Connecting user {_playerInfo.Username} with identity={identity}");
}
_playerInfo.ClientUuid = new UUID(identity);
_session.CryptoContext = new CryptoContext
{
UseEncryption = Config.GetProperty("UseEncryptionForAll", false) || (Config.GetProperty("UseEncryption", true) && !string.IsNullOrWhiteSpace(_playerInfo.CertificateData.ExtraData.Xuid)),
};
if (_session.CryptoContext.UseEncryption)
{
ECDiffieHellmanPublicKey publicKey = CryptoUtils.CreateEcDiffieHellmanPublicKey(_playerInfo.CertificateData.IdentityPublicKey);
if (Log.IsDebugEnabled)
{
Log.Debug($"Cert:\n{publicKey.ToXmlString()}");
}
// Create shared shared secret
ECDiffieHellmanCng ecKey = new ECDiffieHellmanCng(384);
ecKey.HashAlgorithm = CngAlgorithm.Sha256;
ecKey.KeyDerivationFunction = ECDiffieHellmanKeyDerivationFunction.Hash;
ecKey.SecretPrepend = Encoding.UTF8.GetBytes("RANDOM SECRET"); // Server token
byte[] secret = ecKey.DeriveKeyMaterial(publicKey);
if (Log.IsDebugEnabled)
{
Log.Debug($"SECRET KEY (b64):\n{Convert.ToBase64String(secret)}");
}
{
RijndaelManaged rijAlg = new RijndaelManaged
{
BlockSize = 128,
Padding = PaddingMode.None,
Mode = CipherMode.CFB,
FeedbackSize = 8,
Key = secret,
IV = secret.Take(16).ToArray(),
};
// Create a decrytor to perform the stream transform.
ICryptoTransform decryptor = rijAlg.CreateDecryptor(rijAlg.Key, rijAlg.IV);
MemoryStream inputStream = new MemoryStream();
CryptoStream cryptoStreamIn = new CryptoStream(inputStream, decryptor, CryptoStreamMode.Read);
ICryptoTransform encryptor = rijAlg.CreateEncryptor(rijAlg.Key, rijAlg.IV);
MemoryStream outputStream = new MemoryStream();
CryptoStream cryptoStreamOut = new CryptoStream(outputStream, encryptor, CryptoStreamMode.Write);
_session.CryptoContext.Algorithm = rijAlg;
_session.CryptoContext.Decryptor = decryptor;
_session.CryptoContext.Encryptor = encryptor;
_session.CryptoContext.InputStream = inputStream;
_session.CryptoContext.OutputStream = outputStream;
_session.CryptoContext.CryptoStreamIn = cryptoStreamIn;
_session.CryptoContext.CryptoStreamOut = cryptoStreamOut;
}
//TODO: JSON now.
throw new Exception("JSON!!!");
//var response = McpeServerToClientHandshake.CreateObject();
// response.NoBatch = true;
// response.ForceClear = true;
//response.token =
// response.serverPublicKey = Convert.ToBase64String(ecKey.PublicKey.GetDerEncoded());
// response.tokenLength = (short) ecKey.SecretPrepend.Length;
// response.token = ecKey.SecretPrepend;
//_session.SendPackage(response);
if (Log.IsDebugEnabled)
{
Log.Warn($"Encryption enabled for {_session.Username}");
}
}
}
}
if (!_session.CryptoContext.UseEncryption)
{
_session.MessageHandler.HandleMcpeClientToServerHandshake(null);
}
}
catch (Exception e)
{
Log.Error("Decrypt", e);
}
}
protected void DecodeCert(McpeLogin message)
{
// Get bytes
byte[] buffer = message.payload;
//Log.Debug($"Unknown byte in login packet is: {message.unknown}");
if (message.payload.Length != buffer.Length)
{
Log.Debug($"Wrong lenght {message.payload.Length} != {message.payload.Length}");
throw new Exception($"Wrong lenght {message.payload.Length} != {message.payload.Length}");
}
// Decompress bytes
Log.Debug("Lenght: " + message.payload.Length + ", Message: " + Convert.ToBase64String(buffer));
//MemoryStream stream = new MemoryStream(buffer);
//if (stream.ReadByte() != 0x78)
//{
// throw new InvalidDataException("Incorrect ZLib header. Expected 0x78 0x9C");
//}
//stream.ReadByte();
string certificateChain;
string skinData;
//using (var defStream2 = new DeflateStream(stream, CompressionMode.Decompress, false))
{
// Get actual package out of bytes
//using (MemoryStream destination = MiNetServer.MemoryStreamManager.GetStream())
{
//defStream2.CopyTo(destination);
var destination = new MemoryStream(buffer);
destination.Position = 0;
NbtBinaryReader reader = new NbtBinaryReader(destination, false);
try
{
var countCertData = reader.ReadInt32();
Log.Debug("Count cert: " + countCertData);
certificateChain = Encoding.UTF8.GetString(reader.ReadBytes(countCertData));
Log.Debug("Decompressed certificateChain " + certificateChain);
var countSkinData = reader.ReadInt32();
Log.Debug("Count skin: " + countSkinData);
skinData = Encoding.UTF8.GetString(reader.ReadBytes(countSkinData));
Log.Debug("Decompressed skinData" + skinData);
}
catch (Exception e)
{
Log.Error("Parsing login", e);
return;
}
}
}
try
{
{
if (Log.IsDebugEnabled)
{
Log.Debug("Input SKIN string: " + skinData);
}
IDictionary <string, dynamic> headers = JWT.Headers(skinData);
dynamic payload = JObject.Parse(JWT.Payload(skinData));
if (Log.IsDebugEnabled)
{
Log.Debug($"Skin JWT Header: {string.Join(";", headers)}");
}
if (Log.IsDebugEnabled)
{
Log.Debug($"Skin JWT Payload:\n{payload.ToString()}");
}
Console.WriteLine(payload);
// Skin JWT Payload:
//{
// "ClientRandomId": 1423700530444426768,
// "CurrentInputMode": 1,
// "DefaultInputMode": 1,
// "DeviceModel": "ASUSTeK COMPUTER INC. N550JK",
// "DeviceOS": 7,
// "GameVersion": "1.2.0",
// "GuiScale": 0,
// "LanguageCode": "en_US",
// "ServerAddress": "192.168.0.3:19132",
// "SkinData": "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",
// "SkinId": "Standard_Custom",
// "UIProfile": 0
//}
try
{
_playerInfo.ClientId = payload.ClientRandomId;
_playerInfo.CurrentInputMode = payload.CurrentInputMode;
_playerInfo.DefaultInputMode = payload.DefaultInputMode;
_playerInfo.DeviceModel = payload.DeviceModel;
_playerInfo.DeviceOS = payload.DeviceOS;
_playerInfo.GameVersion = payload.GameVersion;
_playerInfo.GuiScale = payload.GuiScale;
_playerInfo.LanguageCode = payload.LanguageCode;
_playerInfo.ServerAddress = payload.ServerAddress;
_playerInfo.UIProfile = payload.UIProfile;
_playerInfo.Skin = new Skin()
{
SkinType = payload.SkinId,
Texture = Convert.FromBase64String((string)payload.SkinData),
GeometryType = (string)payload.SkinGeometryName,
GeometryData = Encoding.ASCII.GetString(Convert.FromBase64String((string)payload.SkinGeometryData))
};
}
catch (Exception e)
{
Log.Error("Skin info", e);
}
}
{
if (Log.IsDebugEnabled)
{
Log.Debug("Input JSON string: " + certificateChain);
}
dynamic json = JObject.Parse(certificateChain);
if (Log.IsDebugEnabled)
{
Log.Debug($"JSON:\n{json}");
}
string validationKey = null;
JArray chain = json.chain;
var chainArray = chain.ToArray();
string identityPublicKey = null;
foreach (dynamic o in chainArray)
{
IDictionary <string, dynamic> headers = JWT.Headers(o.ToString());
if (Log.IsDebugEnabled)
{
Log.Debug("Raw chain element:\n" + o.ToString());
Log.Debug($"JWT Header: {string.Join(";", headers)}");
dynamic jsonPayload = JObject.Parse(JWT.Payload(o.ToString()));
Log.Debug($"JWT Payload:\n{jsonPayload}");
}
// x5u cert (string): MHYwEAYHKoZIzj0CAQYFK4EEACIDYgAE8ELkixyLcwlZryUQcu1TvPOmI2B7vX83ndnWRUaXm74wFfa5f/lwQNTfrLVHa2PmenpGI6JhIMUJaWZrjmMj90NoKNFSNBuKdm8rYiXsfaz3K36x/1U26HpG0ZxK/V1V
if (headers.ContainsKey("x5u"))
{
string certString = headers["x5u"];
if (identityPublicKey == null && CertificateData.MojangRootKey.Equals(certString, StringComparison.InvariantCultureIgnoreCase))
{
Log.Debug("Key is ok, and got Mojang root");
}
else if (identityPublicKey == null)
{
if (chainArray.Length > 1)
{
Log.Debug("Got client cert (client root)");
continue;
}
else if (chainArray.Length == 1)
{
Log.Debug("Selfsigned chain");
}
}
else if (identityPublicKey.Equals(certString))
{
Log.Debug("Derived Key is ok");
}
if (Log.IsDebugEnabled)
{
Log.Debug($"x5u cert (string): {certString}");
ECDiffieHellmanPublicKey publicKey = CryptoUtils.CreateEcDiffieHellmanPublicKey(certString);
Log.Debug($"Cert:\n{publicKey.ToXmlString()}");
}
// Validate
var newKey = CryptoUtils.ImportECDsaCngKeyFromString(certString);
CertificateData data = JWT.Decode <CertificateData>(o.ToString(), newKey);
if (data != null)
{
identityPublicKey = data.IdentityPublicKey;
if (Log.IsDebugEnabled)
{
Log.Debug("Decoded token success");
}
if (CertificateData.MojangRootKey.Equals(certString, StringComparison.InvariantCultureIgnoreCase))
{
Log.Debug("Got Mojang key. Is valid = " + data.CertificateAuthority);
validationKey = data.IdentityPublicKey;
}
else if (validationKey != null && validationKey.Equals(certString, StringComparison.InvariantCultureIgnoreCase))
{
_playerInfo.CertificateData = data;
}
else
{
if (data.ExtraData == null)
{
continue;
}
// Self signed, make sure they don't fake XUID
if (data.ExtraData.Xuid != null)
{
Log.Warn("Received fake XUID from " + data.ExtraData.DisplayName);
data.ExtraData.Xuid = null;
}
_playerInfo.CertificateData = data;
}
}
else
{
Log.Error("Not a valid Identity Public Key for decoding");
}
}
}
//TODO: Implement disconnect here
{
_playerInfo.Username = _playerInfo.CertificateData.ExtraData.DisplayName;
_session.Username = _playerInfo.Username;
string identity = _playerInfo.CertificateData.ExtraData.Identity;
if (Log.IsDebugEnabled)
{
Log.Debug($"Connecting user {_playerInfo.Username} with identity={identity}");
}
_playerInfo.ClientUuid = new UUID(identity);
_session.CryptoContext = new CryptoContext
{
UseEncryption = Config.GetProperty("UseEncryptionForAll", false) || (Config.GetProperty("UseEncryption", true) && !string.IsNullOrWhiteSpace(_playerInfo.CertificateData.ExtraData.Xuid)),
};
if (_session.CryptoContext.UseEncryption)
{
ECDiffieHellmanPublicKey publicKey = CryptoUtils.CreateEcDiffieHellmanPublicKey(_playerInfo.CertificateData.IdentityPublicKey);
if (Log.IsDebugEnabled)
{
Log.Debug($"Cert:\n{publicKey.ToXmlString()}");
}
// Create shared shared secret
ECDiffieHellmanCng ecKey = new ECDiffieHellmanCng(384);
ecKey.HashAlgorithm = CngAlgorithm.Sha256;
ecKey.KeyDerivationFunction = ECDiffieHellmanKeyDerivationFunction.Hash;
ecKey.SecretPrepend = Encoding.UTF8.GetBytes("RANDOM SECRET"); // Server token
byte[] secret = ecKey.DeriveKeyMaterial(publicKey);
if (Log.IsDebugEnabled)
{
Log.Debug($"SECRET KEY (b64):\n{Convert.ToBase64String(secret)}");
}
{
RijndaelManaged rijAlg = new RijndaelManaged
{
BlockSize = 128,
Padding = PaddingMode.None,
Mode = CipherMode.CFB,
FeedbackSize = 8,
Key = secret,
IV = secret.Take(16).ToArray(),
};
// Create a decrytor to perform the stream transform.
ICryptoTransform decryptor = rijAlg.CreateDecryptor(rijAlg.Key, rijAlg.IV);
MemoryStream inputStream = new MemoryStream();
CryptoStream cryptoStreamIn = new CryptoStream(inputStream, decryptor, CryptoStreamMode.Read);
ICryptoTransform encryptor = rijAlg.CreateEncryptor(rijAlg.Key, rijAlg.IV);
MemoryStream outputStream = new MemoryStream();
CryptoStream cryptoStreamOut = new CryptoStream(outputStream, encryptor, CryptoStreamMode.Write);
_session.CryptoContext.Algorithm = rijAlg;
_session.CryptoContext.Decryptor = decryptor;
_session.CryptoContext.Encryptor = encryptor;
_session.CryptoContext.InputStream = inputStream;
_session.CryptoContext.OutputStream = outputStream;
_session.CryptoContext.CryptoStreamIn = cryptoStreamIn;
_session.CryptoContext.CryptoStreamOut = cryptoStreamOut;
}
var response = McpeServerToClientHandshake.CreateObject();
response.NoBatch = true;
response.ForceClear = true;
string b64Key = Convert.ToBase64String(ecKey.PublicKey.GetDerEncoded());
var j = CngKey.Create(CngAlgorithm.ECDiffieHellmanP384, null, new CngKeyCreationParameters()
{
ExportPolicy = CngExportPolicies.AllowPlaintextExport, KeyUsage = CngKeyUsages.AllUsages
});
var jwt = JWT.Encode(new object[] {
new [] { "salt", "sNUMIRcN2BSNRw93P5vGpg==" }
}, j, JwsAlgorithm.ES384, new Dictionary <string, object> {
{ "x5u", b64Key }
});
response.token = jwt;
_session.SendPackage(response);
if (Log.IsDebugEnabled)
{
Log.Warn($"Encryption enabled for {_session.Username}");
}
}
}
}
if (!_session.CryptoContext.UseEncryption)
{
_session.MessageHandler.HandleMcpeClientToServerHandshake(null);
}
}
catch (Exception e)
{
Log.Error("Decrypt", e);
}
}
internal void HandlePackage(Package message, PlayerNetworkSession playerSession)
{
if (message == null)
{
return;
}
TraceReceive(message);
if (typeof(UnknownPackage) == message.GetType())
{
UnknownPackage packet = (UnknownPackage)message;
Log.Warn($"Received unknown package 0x{message.Id:X2}\n{Package.HexDump(packet.Message)}");
return;
}
if (typeof(McpeBatch) == message.GetType())
{
McpeBatch batch = (McpeBatch)message;
var messages = new List <Package>();
// Get bytes
byte[] payload = batch.payload;
// Decompress bytes
MemoryStream stream = new MemoryStream(payload);
if (stream.ReadByte() != 0x78)
{
throw new InvalidDataException("Incorrect ZLib header. Expected 0x78 0x9C");
}
stream.ReadByte();
using (var defStream2 = new DeflateStream(stream, CompressionMode.Decompress, false))
{
// Get actual package out of bytes
MemoryStream destination = MiNetServer.MemoryStreamManager.GetStream();
defStream2.CopyTo(destination);
destination.Position = 0;
NbtBinaryReader reader = new NbtBinaryReader(destination, true);
int len = reader.ReadInt32();
byte[] internalBuffer = reader.ReadBytes(len);
//byte[] internalBuffer = destination.ToArray();
messages.Add(PackageFactory.CreatePackage(internalBuffer[0], internalBuffer) ?? new UnknownPackage(internalBuffer[0], internalBuffer));
if (destination.Length > destination.Position)
{
throw new Exception("Have more data");
}
}
foreach (var msg in messages)
{
msg.DatagramSequenceNumber = batch.DatagramSequenceNumber;
msg.OrderingChannel = batch.OrderingChannel;
msg.OrderingIndex = batch.OrderingIndex;
HandlePackage(msg, playerSession);
msg.PutPool();
}
return;
}
Player player = playerSession.Player;
if (player != null)
{
player.HandlePackage(message);
}
}
private void OnBatch(Package message)
{
McpeBatch batch = (McpeBatch) message;
var messages = new List<Package>();
// Get bytes
byte[] payload = batch.payload;
// Decompress bytes
MemoryStream stream = new MemoryStream(payload);
if (stream.ReadByte() != 0x78)
{
throw new InvalidDataException("Incorrect ZLib header. Expected 0x78 0x9C");
}
stream.ReadByte();
using (var defStream2 = new DeflateStream(stream, CompressionMode.Decompress, false))
{
// Get actual package out of bytes
MemoryStream destination = new MemoryStream();
defStream2.CopyTo(destination);
destination.Position = 0;
NbtBinaryReader reader = new NbtBinaryReader(destination, true);
do
{
int len = reader.ReadInt32();
byte[] internalBuffer = reader.ReadBytes(len);
messages.Add(PackageFactory.CreatePackage(internalBuffer[0], internalBuffer) ?? new UnknownPackage(internalBuffer[0], internalBuffer));
} while (destination.Position < destination.Length);
}
foreach (var msg in messages)
{
msg.DatagramSequenceNumber = batch.DatagramSequenceNumber;
msg.OrderingChannel = batch.OrderingChannel;
msg.OrderingIndex = batch.OrderingIndex;
HandlePackage(msg);
msg.PutPool();
}
}
public static ChunkColumn DecodeChunkColumn(int subChunkCount, byte[] buffer, BlockPalette bedrockPalette = null, HashSet <BlockStateContainer> internalBlockPallet = null)
{
lock (_chunkRead)
{
var stream = new MemoryStream(buffer);
{
var defStream = new NbtBinaryReader(stream, true);
if (subChunkCount < 1)
{
Log.Warn("Nothing to read");
return(null);
}
Log.Debug($"Reading {subChunkCount} sections");
var chunkColumn = new ChunkColumn(false);
for (int chunkIndex = 0; chunkIndex < subChunkCount; chunkIndex++)
{
int version = defStream.ReadByte();
int storageSize = defStream.ReadByte();
var subChunk = chunkColumn[chunkIndex];
for (int storageIndex = 0; storageIndex < storageSize; storageIndex++)
{
int bitsPerBlock = defStream.ReadByte() >> 1;
int blocksPerWord = (int)Math.Floor(32f / bitsPerBlock);
int wordsPerChunk = (int)Math.Ceiling(4096f / blocksPerWord);
Log.Debug($"New section {chunkIndex}, " +
$"version={version}, " +
$"storageSize={storageSize}, " +
$"storageIndex={storageIndex}, " +
$"bitsPerBlock={bitsPerBlock}, " +
$"noBlocksPerWord={blocksPerWord}, " +
$"wordCount={wordsPerChunk}, " +
$"");
long jumpPos = stream.Position;
stream.Seek(wordsPerChunk * 4, SeekOrigin.Current);
int paletteCount = VarInt.ReadSInt32(stream);
var palette = new int[paletteCount];
for (int j = 0; j < paletteCount; j++)
{
int runtimeId = VarInt.ReadSInt32(stream);
if (bedrockPalette == null || internalBlockPallet == null)
{
continue;
}
palette[j] = GetServerRuntimeId(bedrockPalette, internalBlockPallet, runtimeId);
}
long afterPos = stream.Position;
stream.Position = jumpPos;
int position = 0;
for (int w = 0; w < wordsPerChunk; w++)
{
uint word = defStream.ReadUInt32();
for (int block = 0; block < blocksPerWord; block++)
{
if (position >= 4096)
{
continue;
}
uint state = (uint)((word >> ((position % blocksPerWord) * bitsPerBlock)) & ((1 << bitsPerBlock) - 1));
int x = (position >> 8) & 0xF;
int y = position & 0xF;
int z = (position >> 4) & 0xF;
int runtimeId = palette[state];
if (storageIndex == 0)
{
subChunk.SetBlockByRuntimeId(x, y, z, (int)runtimeId);
}
else
{
subChunk.SetLoggedBlockByRuntimeId(x, y, z, (int)runtimeId);
}
position++;
}
}
stream.Position = afterPos;
}
}
if (defStream.Read(chunkColumn.biomeId, 0, 256) != 256)
{
Log.Error($"Out of data biomeId");
}
//Log.Debug($"biomeId:\n{Package.HexDump(chunk.biomeId)}");
//if (stream.Position >= stream.Length - 1) return chunkColumn;
int borderBlock = VarInt.ReadSInt32(stream);
if (borderBlock != 0)
{
byte[] buf = new byte[borderBlock];
int len = defStream.Read(buf, 0, borderBlock);
Log.Warn($"??? Got borderblock {borderBlock}. Read {len} bytes");
Log.Debug($"{Packet.HexDump(buf)}");
for (int i = 0; i < borderBlock; i++)
{
int x = (buf[i] & 0xf0) >> 4;
int z = buf[i] & 0x0f;
Log.Debug($"x={x}, z={z}");
}
}
if (stream.Position < stream.Length - 1)
{
while (stream.Position < stream.Length)
{
NbtFile file = new NbtFile()
{
BigEndian = false,
UseVarInt = true
};
file.LoadFromStream(stream, NbtCompression.None);
var blockEntityTag = file.RootTag;
if (blockEntityTag.Name != "alex")
{
int x = blockEntityTag["x"].IntValue;
int y = blockEntityTag["y"].IntValue;
int z = blockEntityTag["z"].IntValue;
chunkColumn.SetBlockEntity(new BlockCoordinates(x, y, z), (NbtCompound)file.RootTag);
Log.Debug($"Blockentity:\n{file.RootTag}");
}
}
}
if (stream.Position < stream.Length - 1)
{
Log.Warn($"Still have data to read\n{Packet.HexDump(defStream.ReadBytes((int) (stream.Length - stream.Position)))}");
}
return(chunkColumn);
}
}
}
public static ChunkColumn DecocedChunkColumn(byte[] buffer)
{
lock (_chunkRead)
{
MemoryStream stream = new MemoryStream(buffer);
{
NbtBinaryReader defStream = new NbtBinaryReader(stream, true);
Log.Debug("New chunk column");
int count = defStream.ReadByte();
if (count < 1)
{
Log.Warn("Nothing to read");
return(null);
}
Log.Debug($"Reading {count} sections");
ChunkColumn chunkColumn = new ChunkColumn();
for (int s = 0; s < count; s++)
{
int version = defStream.ReadByte();
int storageSize = defStream.ReadByte();
for (int i = 0; i < storageSize; i++)
{
int bitsPerBlock = defStream.ReadByte() >> 1;
int noBlocksPerWord = (int)Math.Floor(32f / bitsPerBlock);
int wordCount = (int)Math.Ceiling(4096f / noBlocksPerWord);
Log.Warn($"New section {s}, " +
$"version={version}, " +
$"storageSize={storageSize}, " +
$"bitsPerBlock={bitsPerBlock}, " +
$"noBlocksPerWord={noBlocksPerWord}, " +
$"wordCount={wordCount}, " +
$"");
defStream.ReadBytes(wordCount * 4);
int paletteCount = VarInt.ReadSInt32(stream);
//Log.Warn($"New section {s}, " +
// $"version={version}, " +
// $"storageSize={storageSize}, " +
// $"bitsPerBlock={bitsPerBlock}, " +
// $"noBlocksPerWord={noBlocksPerWord}, " +
// $"wordCount={wordCount}, " +
// $"paletteCount={paletteCount}" +
// $"");
for (int j = 0; j < paletteCount; j++)
{
VarInt.ReadSInt32(stream);
}
}
}
//if (stream.Position >= stream.Length - 1) continue;
byte[] ba = new byte[512];
if (defStream.Read(ba, 0, 256 * 2) != 256 * 2)
{
Log.Error($"Out of data height");
}
Buffer.BlockCopy(ba, 0, chunkColumn.height, 0, 512);
//Log.Debug($"Heights:\n{Package.HexDump(ba)}");
//if (stream.Position >= stream.Length - 1) continue;
if (defStream.Read(chunkColumn.biomeId, 0, 256) != 256)
{
Log.Error($"Out of data biomeId");
}
//Log.Debug($"biomeId:\n{Package.HexDump(chunk.biomeId)}");
if (stream.Position >= stream.Length - 1)
{
return(chunkColumn);
}
int borderBlock = VarInt.ReadSInt32(stream);
if (borderBlock != 0)
{
byte[] buf = new byte[borderBlock];
int len = defStream.Read(buf, 0, borderBlock);
Log.Warn($"??? Got borderblock {borderBlock}. Read {len} bytes");
Log.Debug($"{Packet.HexDump(buf)}");
for (int i = 0; i < borderBlock; i++)
{
int x = (buf[i] & 0xf0) >> 4;
int z = buf[i] & 0x0f;
Log.Debug($"x={x}, z={z}");
}
}
if (stream.Position < stream.Length - 1)
{
//Log.Debug($"Got NBT data\n{Package.HexDump(defStream.ReadBytes((int) (stream.Length - stream.Position)))}");
while (stream.Position < stream.Length)
{
NbtFile file = new NbtFile()
{
BigEndian = false,
UseVarInt = true
};
file.LoadFromStream(stream, NbtCompression.None);
Log.Debug($"Blockentity: {file.RootTag}");
}
}
if (stream.Position < stream.Length - 1)
{
Log.Warn($"Still have data to read\n{Packet.HexDump(defStream.ReadBytes((int) (stream.Length - stream.Position)))}");
}
return(chunkColumn);
}
}
}
/// <summary>
/// Handles the specified package.
/// </summary>
/// <param name="message">The package.</param>
/// <param name="senderEndpoint">The sender's endpoint.</param>
private void HandlePackage(Package message, IPEndPoint senderEndpoint)
{
if (typeof(McpeBatch) == message.GetType())
{
Log.Debug("Processing Batch package");
McpeBatch batch = (McpeBatch)message;
var messages = new List <Package>();
// Get bytes
byte[] payload = batch.payload;
// Decompress bytes
MemoryStream stream = new MemoryStream(payload);
if (stream.ReadByte() != 0x78)
{
throw new InvalidDataException("Incorrect ZLib header. Expected 0x78");
}
stream.ReadByte();
using (var defStream2 = new DeflateStream(stream, CompressionMode.Decompress, false))
{
// Get actual package out of bytes
MemoryStream destination = new MemoryStream();
defStream2.CopyTo(destination);
destination.Position = 0;
NbtBinaryReader reader = new NbtBinaryReader(destination, true);
do
{
int len = reader.ReadInt32();
byte[] internalBuffer = reader.ReadBytes(len);
messages.Add(PackageFactory.CreatePackage(internalBuffer[0], internalBuffer) ?? new UnknownPackage(internalBuffer[0], internalBuffer));
} while (destination.Position < destination.Length); // throw new Exception("Have more data");
}
foreach (var msg in messages)
{
HandlePackage(msg, senderEndpoint);
msg.PutPool();
}
return;
}
TraceReceive(message);
if (typeof(UnknownPackage) == message.GetType())
{
return;
}
if (typeof(McpeDisconnect) == message.GetType())
{
McpeDisconnect msg = (McpeDisconnect)message;
Log.InfoFormat("Disconnect {1}: {0}", msg.message, Username);
SendDisconnectionNotification();
StopClient();
return;
}
if (typeof(ConnectedPing) == message.GetType())
{
ConnectedPing msg = (ConnectedPing)message;
SendConnectedPong(msg.sendpingtime);
return;
}
if (typeof(McpeFullChunkData) == message.GetType())
{
//McpeFullChunkData msg = (McpeFullChunkData) message;
//ChunkColumn chunk = ClientUtils.DecocedChunkColumn(msg.chunkData);
//if (chunk != null)
//{
// Log.DebugFormat("Chunk X={0}", chunk.x);
// Log.DebugFormat("Chunk Z={0}", chunk.z);
// //ClientUtils.SaveChunkToAnvil(chunk);
//}
return;
}
if (typeof(ConnectionRequestAccepted) == message.GetType())
{
Thread.Sleep(50);
SendNewIncomingConnection();
//_connectedPingTimer = new Timer(state => SendConnectedPing(), null, 1000, 1000);
Thread.Sleep(50);
SendLogin(Username);
return;
}
if (typeof(McpeSetSpawnPosition) == message.GetType())
{
McpeSetSpawnPosition msg = (McpeSetSpawnPosition)message;
_spawn = new Vector3(msg.x, msg.y, msg.z);
_level.SpawnX = (int)_spawn.X;
_level.SpawnY = (int)_spawn.Y;
_level.SpawnZ = (int)_spawn.Z;
return;
}
if (typeof(McpeStartGame) == message.GetType())
{
McpeStartGame msg = (McpeStartGame)message;
_entityId = msg.entityId;
_spawn = new Vector3(msg.x, msg.y, msg.z);
_level.LevelName = "Default";
_level.Version = 19133;
_level.GameType = msg.gamemode;
//ClientUtils.SaveLevel(_level);
return;
}
if (typeof(McpeTileEvent) == message.GetType())
{
McpeTileEvent msg = (McpeTileEvent)message;
Log.DebugFormat("X: {0}", msg.x);
Log.DebugFormat("Y: {0}", msg.y);
Log.DebugFormat("Z: {0}", msg.z);
Log.DebugFormat("Case 1: {0}", msg.case1);
Log.DebugFormat("Case 2: {0}", msg.case2);
return;
}
if (typeof(McpeAddEntity) == message.GetType())
{
McpeAddEntity msg = (McpeAddEntity)message;
Log.DebugFormat("Entity ID: {0}", msg.entityId);
Log.DebugFormat("Entity Type: {0}", msg.entityType);
Log.DebugFormat("X: {0}", msg.x);
Log.DebugFormat("Y: {0}", msg.y);
Log.DebugFormat("Z: {0}", msg.z);
Log.DebugFormat("Yaw: {0}", msg.yaw);
Log.DebugFormat("Pitch: {0}", msg.pitch);
Log.DebugFormat("Velocity X: {0}", msg.speedX);
Log.DebugFormat("Velocity Y: {0}", msg.speedY);
Log.DebugFormat("Velocity Z: {0}", msg.speedZ);
//Log.DebugFormat("Metadata: {0}", msg.metadata.ToString());
//Log.DebugFormat("Links count: {0}", msg.links);
return;
}
if (typeof(McpeSetEntityData) == message.GetType())
{
McpeSetEntityData msg = (McpeSetEntityData)message;
Log.DebugFormat("Entity ID: {0}", msg.entityId);
MetadataDictionary metadata = msg.metadata;
Log.DebugFormat("Metadata: {0}", metadata.ToString());
return;
}
if (typeof(McpeMovePlayer) == message.GetType())
{
//McpeMovePlayer msg = (McpeMovePlayer) message;
//Log.DebugFormat("Entity ID: {0}", msg.entityId);
//CurrentLocation = new PlayerLocation(msg.x, msg.y + 10, msg.z);
//SendMcpeMovePlayer();
return;
}
if (typeof(McpeUpdateBlock) == message.GetType())
{
McpeUpdateBlock msg = (McpeUpdateBlock)message;
Log.DebugFormat("No of Blocks: {0}", msg.blocks.Count);
return;
}
if (typeof(McpeLevelEvent) == message.GetType())
{
McpeLevelEvent msg = (McpeLevelEvent)message;
Log.DebugFormat("Event ID: {0}", msg.eventId);
Log.DebugFormat("X: {0}", msg.x);
Log.DebugFormat("Y: {0}", msg.y);
Log.DebugFormat("Z: {0}", msg.z);
Log.DebugFormat("Data: {0}", msg.data);
return;
}
if (typeof(McpeContainerSetContent) == message.GetType())
{
McpeContainerSetContent msg = (McpeContainerSetContent)message;
Log.DebugFormat("Window ID: 0x{0:x2}, Count: {1}", msg.windowId, msg.slotData.Count);
var slots = msg.slotData.GetValues();
foreach (var entry in slots)
{
MetadataSlot slot = (MetadataSlot)entry;
//Log.DebugFormat(" - Id: {0}, Metadata: {1}, Count: {2}", slot.Value.Item.Id, slot.Value.Item.Metadata, slot.Value.Count);
}
return;
}
if (typeof(McpeCraftingData) == message.GetType())
{
string fileName = Path.GetTempPath() + "Recipes_" + Guid.NewGuid() + ".txt";
Log.Info("Writing recipes to filename: " + fileName);
FileStream file = File.OpenWrite(fileName);
McpeCraftingData msg = (McpeCraftingData)message;
IndentedTextWriter writer = new IndentedTextWriter(new StreamWriter(file));
writer.WriteLine("static RecipeManager()");
writer.WriteLine("{");
writer.Indent++;
writer.WriteLine("Recipes = new Recipes");
writer.WriteLine("{");
writer.Indent++;
foreach (Recipe recipe in msg.recipes)
{
ShapelessRecipe shapelessRecipe = recipe as ShapelessRecipe;
if (shapelessRecipe != null)
{
writer.WriteLine(string.Format("new ShapelessRecipe(new ItemStack(ItemFactory.GetItem({0}, {1}), {2}),", shapelessRecipe.Result.Id, shapelessRecipe.Result.Metadata, shapelessRecipe.Result.Count));
writer.Indent++;
writer.WriteLine("new List<ItemStack>");
writer.WriteLine("{");
writer.Indent++;
foreach (var itemStack in shapelessRecipe.Input)
{
writer.WriteLine(string.Format("new ItemStack(ItemFactory.GetItem({0}, {1}), {2}),", itemStack.Id, itemStack.Metadata, itemStack.Count));
}
writer.Indent--;
writer.WriteLine("}),");
writer.Indent--;
continue;
}
ShapedRecipe shapedRecipe = recipe as ShapedRecipe;
if (shapedRecipe != null)
{
writer.WriteLine(string.Format("new ShapedRecipe({0}, {1}, new ItemStack(ItemFactory.GetItem({2}, {3}), {4}),", shapedRecipe.Width, shapedRecipe.Height, shapedRecipe.Result.Id, shapedRecipe.Result.Metadata, shapedRecipe.Result.Count));
writer.Indent++;
writer.WriteLine("new Item[]");
writer.WriteLine("{");
writer.Indent++;
foreach (Item item in shapedRecipe.Input)
{
writer.WriteLine(string.Format("ItemFactory.GetItem({0}, {1}),", item.Id, item.Metadata));
}
writer.Indent--;
writer.WriteLine("}),");
writer.Indent--;
continue;
}
}
writer.WriteLine("};");
writer.Indent--;
writer.WriteLine("}");
writer.Indent--;
writer.Flush();
file.Close();
Environment.Exit(0);
return;
}
}
protected void DecodeCertMono(McpeLogin message)
{
byte[] buffer = message.payload;
if (message.payload.Length != buffer.Length)
{
Log.Debug($"Wrong lenght {message.payload.Length} != {message.payload.Length}");
throw new Exception($"Wrong lenght {message.payload.Length} != {message.payload.Length}");
}
if (Log.IsDebugEnabled)
{
Log.Debug("Lenght: " + message.payload.Length + ", Message: " + buffer.EncodeBase64());
}
string certificateChain;
string skinData;
try
{
var destination = new MemoryStream(buffer);
destination.Position = 0;
NbtBinaryReader reader = new NbtBinaryReader(destination, false);
var countCertData = reader.ReadInt32();
certificateChain = Encoding.UTF8.GetString(reader.ReadBytes(countCertData));
if (Log.IsDebugEnabled)
{
Log.Debug($"Certificate Chain (Lenght={countCertData})\n{certificateChain}");
}
var countSkinData = reader.ReadInt32();
skinData = Encoding.UTF8.GetString(reader.ReadBytes(countSkinData));
if (Log.IsDebugEnabled)
{
Log.Debug($"Skin data (Lenght={countSkinData})\n{skinData}");
}
}
catch (Exception e)
{
Log.Error("Parsing login", e);
return;
}
try
{
{
IDictionary <string, dynamic> headers = JWT.Headers(skinData);
dynamic payload = JObject.Parse(JWT.Payload(skinData));
if (Log.IsDebugEnabled)
{
Log.Debug($"Skin JWT Header: {string.Join(";", headers)}");
}
if (Log.IsDebugEnabled)
{
Log.Debug($"Skin JWT Payload:\n{payload.ToString()}");
}
try
{
_playerInfo.ClientId = payload.ClientRandomId;
_playerInfo.CurrentInputMode = payload.CurrentInputMode;
_playerInfo.DefaultInputMode = payload.DefaultInputMode;
_playerInfo.DeviceModel = payload.DeviceModel;
_playerInfo.DeviceOS = payload.DeviceOS;
_playerInfo.GameVersion = payload.GameVersion;
_playerInfo.GuiScale = payload.GuiScale;
_playerInfo.LanguageCode = payload.LanguageCode;
_playerInfo.ServerAddress = payload.ServerAddress;
_playerInfo.UIProfile = payload.UIProfile;
_playerInfo.Skin = new Skin()
{
CapeData = Convert.FromBase64String((string)payload.CapeData),
SkinId = payload.SkinId,
SkinData = Convert.FromBase64String((string)payload.SkinData),
SkinGeometryName = payload.SkinGeometryName,
SkinGeometry = Encoding.UTF8.GetString(Convert.FromBase64String((string)payload.SkinGeometry)),
};
Log.Warn($"Cape data lenght={_playerInfo.Skin.CapeData.Length}");
}
catch (Exception e)
{
Log.Error("Parsing skin data", e);
}
}
//var chainArray = chain.ToArray();
string validationKey = null;
string identityPublicKey = null;
//if (!isMono)
{
dynamic json = JObject.Parse(certificateChain);
if (Log.IsDebugEnabled)
{
Log.Debug($"Certificate JSON:\n{json}");
}
JArray chain = json.chain;
foreach (JToken token in chain)
{
IDictionary <string, dynamic> headers = JWT.Headers(token.ToString());
if (Log.IsDebugEnabled)
{
Log.Debug("Raw chain element:\n" + token.ToString());
Log.Debug($"JWT Header: {string.Join(";", headers)}");
dynamic jsonPayload = JObject.Parse(JWT.Payload(token.ToString()));
Log.Debug($"JWT Payload:\n{jsonPayload}");
}
// Mojang root x5u cert (string): MHYwEAYHKoZIzj0CAQYFK4EEACIDYgAE8ELkixyLcwlZryUQcu1TvPOmI2B7vX83ndnWRUaXm74wFfa5f/lwQNTfrLVHa2PmenpGI6JhIMUJaWZrjmMj90NoKNFSNBuKdm8rYiXsfaz3K36x/1U26HpG0ZxK/V1V
if (!headers.ContainsKey("x5u"))
{
continue;
}
string x5u = headers["x5u"];
if (identityPublicKey == null)
{
if (CertificateData.MojangRootKey.Equals(x5u, StringComparison.InvariantCultureIgnoreCase))
{
Log.Debug("Key is ok, and got Mojang root");
}
else if (chain.Count > 1)
{
Log.Debug("Got client cert (client root)");
continue;
}
else if (chain.Count == 1)
{
Log.Debug("Selfsigned chain");
}
}
else if (identityPublicKey.Equals(x5u))
{
Log.Debug("Derived Key is ok");
}
// Validate
var key = PublicKeyFactory.CreateKey(x5u.DecodeBase64Url());
CertificateData data = CryptoUtils.Decode(token.ToString(), key);
if (data != null)
{
identityPublicKey = data.IdentityPublicKey;
if (Log.IsDebugEnabled)
{
Log.Debug("Decoded token success");
}
if (CertificateData.MojangRootKey.Equals(x5u, StringComparison.InvariantCultureIgnoreCase))
{
Log.Debug("Got Mojang key. Is valid = " + data.CertificateAuthority);
validationKey = data.IdentityPublicKey;
}
else if (validationKey != null && validationKey.Equals(x5u, StringComparison.InvariantCultureIgnoreCase))
{
_playerInfo.CertificateData = data;
}
else
{
if (data.ExtraData == null)
{
continue;
}
// Self signed, make sure they don't fake XUID
if (data.ExtraData.Xuid != null)
{
Log.Warn("Received fake XUID from " + data.ExtraData.DisplayName);
data.ExtraData.Xuid = null;
}
_playerInfo.CertificateData = data;
}
}
else
{
Log.Error("Not a valid Identity Public Key for decoding");
}
}
}
//TODO: Implement disconnect here
_playerInfo.Username = _playerInfo.CertificateData.ExtraData.DisplayName;
_session.Username = _playerInfo.Username;
string identity = _playerInfo.CertificateData.ExtraData.Identity;
if (Log.IsDebugEnabled)
{
Log.Debug($"Connecting user {_playerInfo.Username} with identity={identity}");
}
_playerInfo.ClientUuid = new UUID(identity);
bool useEncryption = (Config.GetProperty("UseEncryptionForAll", false) ||
(Config.GetProperty("UseEncryption", true) &&
!string.IsNullOrWhiteSpace(_playerInfo.CertificateData.ExtraData.Xuid)));
if (useEncryption)
{
var publicKey = PublicKeyFactory.CreateKey(_playerInfo.CertificateData.IdentityPublicKey.DecodeBase64Url());
string namedCurve = "secp384r1";
ECKeyPairGenerator pGen = new ECKeyPairGenerator();
ECKeyGenerationParameters genParam = new ECKeyGenerationParameters(
SecNamedCurves.GetOid(namedCurve),
new SecureRandom());
pGen.Init(genParam);
AsymmetricCipherKeyPair keyPair = pGen.GenerateKeyPair();
ECDHBasicAgreement agreement = new ECDHBasicAgreement();
agreement.Init(keyPair.Private);
byte[] preHash = agreement.CalculateAgreement(publicKey).ToByteArray();
byte[] prepend = Encoding.UTF8.GetBytes("RANDOM SECRET");
byte[] secret;
SHA256Managed sha = new SHA256Managed();
using (var memoryStream = new MemoryStream())
{
memoryStream.Write(prepend, 0, prepend.Length);
memoryStream.Write(preHash, 0, preHash.Length);
memoryStream.Position = 0;
secret = sha.ComputeHash(memoryStream);
}
sha.Dispose();
//if (Log.IsDebugEnabled) Log.Debug($"SECRET KEY (b64, {secret.Length}):\n{secret.EncodeBase64()}");
{
RijndaelManaged rijAlg = new RijndaelManaged
{
BlockSize = 128,
Padding = PaddingMode.None,
Mode = CipherMode.CFB,
FeedbackSize = 8,
Key = secret,
IV = secret.Take(16).ToArray(),
};
// Create a decrytor to perform the stream transform.
ICryptoTransform decryptor = rijAlg.CreateDecryptor(rijAlg.Key, rijAlg.IV);
MemoryStream inputStream = new MemoryStream();
CryptoStream cryptoStreamIn = new CryptoStream(inputStream, decryptor, CryptoStreamMode.Read);
ICryptoTransform encryptor = rijAlg.CreateEncryptor(rijAlg.Key, rijAlg.IV);
MemoryStream outputStream = new MemoryStream();
CryptoStream cryptoStreamOut = new CryptoStream(outputStream, encryptor, CryptoStreamMode.Write);
_session.CryptoContext = new CryptoContext
{
UseEncryption = true,
Algorithm = rijAlg,
Decryptor = decryptor,
Encryptor = encryptor,
InputStream = inputStream,
OutputStream = outputStream,
CryptoStreamIn = cryptoStreamIn,
CryptoStreamOut = cryptoStreamOut
};
var pubKey1 = ((ECPublicKeyParameters)keyPair.Public);
byte[] asn = new byte[24]
{
0x30, 0x76, 0x30, 0x10, 0x6, 0x7, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x2,
0x1, 0x6, 0x5, 0x2b, 0x81, 0x4, 0x0, 0x22, 0x3, 0x62, 0x0, 0x4
};
string b64Key = asn.Concat(ConvertToNCryptEccPublicBlob(pubKey1.Q).Skip(8)).ToArray().EncodeBase64();
var handshakeJson = new HandshakeData()
{
salt = prepend.EncodeBase64()
};
string val = CryptoUtils.Encode(handshakeJson, keyPair.Private, JwsAlgorithm.ES384,
new Dictionary <string, object> {
{ "x5u", b64Key }
});
var response = McpeServerToClientHandshake.CreateObject();
response.NoBatch = true;
response.ForceClear = true;
response.token = val;
_session.SendPackage(response);
if (Log.IsDebugEnabled)
{
Log.Warn($"Encryption enabled for {_session.Username}");
}
}
}
else
{
_session.CryptoContext = new CryptoContext
{
UseEncryption = false
};
_session.MessageHandler.HandleMcpeClientToServerHandshake(null);
}
}
catch (Exception e)
{
Log.Error("Decrypt", e);
}
}
private void HandleChunk(byte[] chunkData, int cx, int cz, Action <ChunkColumn> callback)
{
MeasureProfiler.StartCollectingData();
var profiler = MiniProfiler.StartNew("BEToJavaColumn");
try
{
using (MemoryStream stream = new MemoryStream(chunkData))
{
NbtBinaryReader defStream = new NbtBinaryReader(stream, true);
int count = defStream.ReadByte();
if (count < 1)
{
Log.Warn("Nothing to read");
return;
}
ChunkColumn chunkColumn = new ChunkColumn();
chunkColumn.IsDirty = true;
chunkColumn.X = cx;
chunkColumn.Z = cz;
for (int s = 0; s < count; s++)
{
var section = chunkColumn.Sections[s] as ChunkSection;
if (section == null)
{
section = new ChunkSection(s, true);
}
int version = defStream.ReadByte();
if (version == 1 || version == 8)
{
int storageSize = defStream.ReadByte();
for (int storage = 0; storage < storageSize; storage++)
{
int paletteAndFlag = defStream.ReadByte();
bool isRuntime = (paletteAndFlag & 1) != 0;
int bitsPerBlock = paletteAndFlag >> 1;
int blocksPerWord = (int)Math.Floor(32f / bitsPerBlock);
int wordCount = (int)Math.Ceiling(4096.0f / blocksPerWord);
uint[] words = new uint[wordCount];
for (int w = 0; w < wordCount; w++)
{
int word = defStream.ReadInt32();
words[w] = SwapBytes((uint)word);
}
uint[] pallete = new uint[0];
if (isRuntime)
{
int palleteSize = VarInt.ReadSInt32(stream);
pallete = new uint[palleteSize];
for (int pi = 0; pi < pallete.Length; pi++)
{
var ui = (uint)VarInt.ReadSInt32(stream);
pallete[pi] = ui;
}
if (palleteSize == 0)
{
Log.Warn($"Pallete size is 0");
continue;
}
}
int position = 0;
for (int w = 0; w < wordCount; w++)
{
uint word = words[w];
for (int block = 0; block < blocksPerWord; block++)
{
if (position >= 4096)
{
break; // padding bytes
}
uint state =
(uint)((word >> ((position % blocksPerWord) * bitsPerBlock)) &
((1 << bitsPerBlock) - 1));
int x = (position >> 8) & 0xF;
int y = position & 0xF;
int z = (position >> 4) & 0xF;
if (storage == 0)
{
if (state >= pallete.Length)
{
continue;
}
IBlockState translated = _convertedStates.GetOrAdd(pallete[state],
u =>
{
if (_blockStateMap.TryGetValue(pallete[state], out var bs))
{
var result =
BlockFactory.RuntimeIdTable.FirstOrDefault(xx =>
xx.Name == bs.Name);
if (result != null && result.Id >= 0)
{
var reverseMap = MiNET.Worlds.AnvilWorldProvider.Convert.FirstOrDefault(map =>
map.Value.Item1 == result.Id);
var id = result.Id;
if (reverseMap.Value != null)
{
id = reverseMap.Key;
}
var res = BlockFactory.GetBlockStateID(
(int)id,
(byte)bs.Data);
if (AnvilWorldProvider.BlockStateMapper.TryGetValue(
res,
out var res2))
{
var t = BlockFactory.GetBlockState(res2);
t = TranslateBlockState(t, id,
bs.Data);
return(t);
}
else
{
Log.Info(
$"Did not find anvil statemap: {result.Name}");
return(TranslateBlockState(
BlockFactory.GetBlockState(result.Name),
id, bs.Data));
}
}
return(TranslateBlockState(
BlockFactory.GetBlockState(bs.Name),
-1, bs.Data));
}
return(null);
});
if (translated != null)
{
section.Set(x, y, z, translated);
}
}
else
{
//TODO.
}
position++;
}
if (position >= 4096)
{
break;
}
}
}
}
else
{
#region OldFormat
byte[] blockIds = new byte[4096];
defStream.Read(blockIds, 0, blockIds.Length);
NibbleArray data = new NibbleArray(4096);
defStream.Read(data.Data, 0, data.Data.Length);
for (int x = 0; x < 16; x++)
{
for (int z = 0; z < 16; z++)
{
for (int y = 0; y < 16; y++)
{
int idx = (x << 8) + (z << 4) + y;
var id = blockIds[idx];
var meta = data[idx];
IBlockState result = null;
if (id > 0 && result == null)
{
var res = BlockFactory.GetBlockStateID(id, meta);
if (AnvilWorldProvider.BlockStateMapper.TryGetValue(res,
out var res2))
{
var t = BlockFactory.GetBlockState(res2);
t = TranslateBlockState(t, id,
meta);
result = t;
}
else
{
Log.Info($"Did not find anvil statemap: {result.Name}");
result = TranslateBlockState(BlockFactory.GetBlockState(res),
id, meta);
}
}
if (result == null)
{
var results = BlockFactory.RuntimeIdTable.Where(xx =>
xx.Id == id && xx.Data == meta).ToArray();
if (results.Length > 0)
{
result = TranslateBlockState(
BlockFactory.GetBlockState((uint)results[0].RuntimeId), id,
meta);
}
}
if (result != null)
{
section.Set(x, y, z, result);
}
}
}
}
#endregion
}
if (UseAlexChunks)
{
// Log.Info($"Alex chunk!");
var rawSky = new Utils.NibbleArray(4096);
defStream.Read(rawSky.Data, 0, rawSky.Data.Length);
var rawBlock = new Utils.NibbleArray(4096);
defStream.Read(rawBlock.Data, 0, rawBlock.Data.Length);
for (int x = 0; x < 16; x++)
{
for (int y = 0; y < 16; y++)
{
for (int z = 0; z < 16; z++)
{
var peIndex = (x * 256) + (z * 16) + y;
var sky = rawSky[peIndex];
var block = rawBlock[peIndex];
var idx = y << 8 | z << 4 | x;
section.SkyLight[idx] = sky;
section.BlockLight[idx] = block;
}
}
}
}
section.RemoveInvalidBlocks();
section.IsDirty = true;
//Make sure the section is saved.
chunkColumn.Sections[s] = section;
}
byte[] ba = new byte[512];
if (defStream.Read(ba, 0, 256 * 2) != 256 * 2)
{
Log.Error($"Out of data height");
}
Buffer.BlockCopy(ba, 0, chunkColumn.Height, 0, 512);
int[] biomeIds = new int[256];
for (int i = 0; i < biomeIds.Length; i++)
{
biomeIds[i] = defStream.ReadByte();
}
chunkColumn.BiomeId = biomeIds;
if (stream.Position >= stream.Length - 1)
{
callback?.Invoke(chunkColumn);
return;
}
int borderBlock = VarInt.ReadSInt32(stream);
if (borderBlock > 0)
{
byte[] buf = new byte[borderBlock];
int len = defStream.Read(buf, 0, borderBlock);
}
if (stream.Position < stream.Length - 1)
{
while (stream.Position < stream.Length)
{
NbtFile file = new NbtFile()
{
BigEndian = false,
UseVarInt = true
};
file.LoadFromStream(stream, NbtCompression.None);
}
}
if (stream.Position < stream.Length - 1)
{
Log.Warn(
$"Still have data to read\n{Packet.HexDump(defStream.ReadBytes((int) (stream.Length - stream.Position)))}");
}
//Done processing this chunk, send to world
callback?.Invoke(chunkColumn);
}
}
catch (Exception ex)
{
Log.Error($"Exception in chunk loading: {ex.ToString()}");
}
finally
{
profiler?.Stop();
MeasureProfiler.SaveData();
}
}
internal void HandlePackage(Package message, PlayerNetworkSession playerSession)
{
Player player = playerSession.Player;
if (message == null)
{
return;
}
if (typeof(McpeWrapper) == message.GetType())
{
McpeWrapper batch = (McpeWrapper)message;
// Get bytes
byte[] payload = batch.payload;
if (playerSession.CryptoContext != null && Config.GetProperty("UseEncryption", true))
{
payload = CryptoUtils.Decrypt(payload, playerSession.CryptoContext);
}
//if (Log.IsDebugEnabled)
// Log.Debug($"0x{payload[0]:x2}\n{Package.HexDump(payload)}");
var msg = PackageFactory.CreatePackage(payload[0], payload, "mcpe") ?? new UnknownPackage(payload[0], payload);
HandlePackage(msg, playerSession);
msg.PutPool();
return;
}
if (typeof(UnknownPackage) == message.GetType())
{
UnknownPackage packet = (UnknownPackage)message;
Log.Warn($"Received unknown package 0x{message.Id:X2}\n{Package.HexDump(packet.Message)}");
return;
}
if (typeof(McpeBatch) == message.GetType())
{
Log.Debug("Handle MCPE batch message");
McpeBatch batch = (McpeBatch)message;
var messages = new List <Package>();
// Get bytes
byte[] payload = batch.payload;
// Decompress bytes
MemoryStream stream = new MemoryStream(payload);
if (stream.ReadByte() != 0x78)
{
throw new InvalidDataException("Incorrect ZLib header. Expected 0x78 0x9C");
}
stream.ReadByte();
using (var defStream2 = new DeflateStream(stream, CompressionMode.Decompress, false))
{
// Get actual package out of bytes
MemoryStream destination = MiNetServer.MemoryStreamManager.GetStream();
defStream2.CopyTo(destination);
destination.Position = 0;
NbtBinaryReader reader = new NbtBinaryReader(destination, true);
while (destination.Position < destination.Length)
{
int len = reader.ReadInt32();
byte[] internalBuffer = reader.ReadBytes(len);
//if (Log.IsDebugEnabled)
// Log.Debug($"0x{internalBuffer[0]:x2}\n{Package.HexDump(internalBuffer)}");
messages.Add(PackageFactory.CreatePackage(internalBuffer[0], internalBuffer, "mcpe") ?? new UnknownPackage(internalBuffer[0], internalBuffer));
}
if (destination.Length > destination.Position)
{
throw new Exception("Have more data");
}
}
foreach (var msg in messages)
{
msg.DatagramSequenceNumber = batch.DatagramSequenceNumber;
msg.OrderingChannel = batch.OrderingChannel;
msg.OrderingIndex = batch.OrderingIndex;
HandlePackage(msg, playerSession);
msg.PutPool();
}
return;
}
if (player != null)
{
player.HandlePackage(message);
}
}
public static ChunkColumn DecocedChunkColumn(byte[] buffer)
{
MemoryStream stream = new MemoryStream(buffer);
{
NbtBinaryReader defStream = new NbtBinaryReader(stream, true);
ChunkColumn chunk = new ChunkColumn();
//chunk.x = IPAddress.NetworkToHostOrder(defStream.ReadInt32());
//chunk.z = IPAddress.NetworkToHostOrder(defStream.ReadInt32());
int chunkSize = 16 * 16 * 128;
defStream.Read(chunk.blocks, 0, chunkSize);
defStream.Read(chunk.metadata.Data, 0, chunkSize / 2);
defStream.Read(chunk.skylight.Data, 0, chunkSize / 2);
defStream.Read(chunk.blocklight.Data, 0, chunkSize / 2);
//Log.Debug($"skylight.Data:\n{Package.HexDump(chunk.skylight.Data, 64)}");
//Log.Debug($"blocklight.Data:\n{Package.HexDump(chunk.blocklight.Data)}");
defStream.Read(chunk.height, 0, 256);
//Log.Debug($"Heights:\n{Package.HexDump(chunk.height)}");
byte[] ints = new byte[256 * 4];
defStream.Read(ints, 0, ints.Length);
//Log.Debug($"biomeColor (pre):\n{Package.HexDump(ints)}");
int j = 0;
for (int i = 0; i < ints.Length; i = i + 4)
{
chunk.biomeId[j] = ints[i];
chunk.biomeColor[j++] = BitConverter.ToInt32(new[] { (byte)0, ints[i + 1], ints[i + 2], ints[i + 3] }, 0);
}
//Log.Debug($"biomeId (post):\n{Package.HexDump(chunk.biomeId)}");
if (stream.Position >= stream.Length - 1)
{
return(chunk);
}
//return chunk;
int extraSize = defStream.ReadInt16();
if (extraSize != 0)
{
Log.Debug($"Got extradata\n{Package.HexDump(defStream.ReadBytes(extraSize))}");
}
if (stream.Position >= stream.Length - 1)
{
return(chunk);
}
//Log.Debug($"Got NBT data\n{Package.HexDump(defStream.ReadBytes((int) (stream.Length - stream.Position)))}");
while (stream.Position < stream.Length)
{
NbtFile file = new NbtFile()
{
BigEndian = false, UseVarInt = true
};
file.LoadFromStream(stream, NbtCompression.None);
//Log.Debug($"Blockentity: {file.RootTag}");
}
return(chunk);
}
}
protected void DecodeCert(McpeLogin message)
{
_playerInfo = new PlayerInfo();
// Get bytes
byte[] buffer = message.payload;
//Log.Debug($"Unknown byte in login packet is: {message.unknown}");
if (message.payload.Length != buffer.Length)
{
Log.Debug($"Wrong lenght {message.payload.Length} != {message.payload.Length}");
throw new Exception($"Wrong lenght {message.payload.Length} != {message.payload.Length}");
}
// Decompress bytes
Log.Debug("Lenght: " + message.payload.Length + ", Message: " + Convert.ToBase64String(buffer));
MemoryStream stream = new MemoryStream(buffer);
if (stream.ReadByte() != 0x78)
{
throw new InvalidDataException("Incorrect ZLib header. Expected 0x78 0x9C");
}
stream.ReadByte();
string certificateChain;
string skinData;
using (var defStream2 = new DeflateStream(stream, CompressionMode.Decompress, false))
{
// Get actual package out of bytes
using (MemoryStream destination = MiNetServer.MemoryStreamManager.GetStream())
{
defStream2.CopyTo(destination);
destination.Position = 0;
NbtBinaryReader reader = new NbtBinaryReader(destination, false);
try
{
var countCertData = reader.ReadInt32();
Log.Debug("Count cert: " + countCertData);
certificateChain = Encoding.UTF8.GetString(reader.ReadBytes(countCertData));
Log.Debug("Decompressed certificateChain " + certificateChain);
var countSkinData = reader.ReadInt32();
Log.Debug("Count skin: " + countSkinData);
skinData = Encoding.UTF8.GetString(reader.ReadBytes(countSkinData));
Log.Debug("Decompressed skinData" + skinData);
}
catch (Exception e)
{
Log.Error("Parsing login", e);
return;
}
}
}
try
{
{
if (Log.IsDebugEnabled)
{
Log.Debug("Input SKIN string: " + skinData);
}
IDictionary <string, dynamic> headers = JWT.Headers(skinData);
dynamic payload = JObject.Parse(JWT.Payload(skinData));
if (Log.IsDebugEnabled)
{
Log.Debug($"Skin JWT Header: {string.Join(";", headers)}");
}
if (Log.IsDebugEnabled)
{
Log.Debug($"Skin JWT Payload:\n{payload.ToString()}");
}
// Skin JWT Payload:
//{
// "ADRole": 2,
// "ClientRandomId": -1256727416,
// "CurrentInputMode": 2,
// "DefaultInputMode": 2,
// "DeviceModel": "SAMSUNG GT-P5210",
// "DeviceOS": 1,
// "GameVersion": "1.0.3.0",
// "GuiScale": 0,
// "ServerAddress": "192.168.0.3:19132",
// "SkinData": 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// "SkinId": "Standard_Custom",
// "TenantId": "",
// "UIProfile": 1
//}
try
{
_playerInfo.ADRole = payload.ADRole;
_playerInfo.ClientId = payload.ClientRandomId;
_playerInfo.CurrentInputMode = payload.CurrentInputMode;
_playerInfo.DefaultInputMode = payload.DefaultInputMode;
_playerInfo.DeviceModel = payload.DeviceModel;
_playerInfo.DeviceOS = payload.DeviceOS;
_playerInfo.GameVersion = payload.GameVersion;
_playerInfo.GuiScale = payload.GuiScale;
_playerInfo.ServerAddress = payload.ServerAddress;
_playerInfo.UIProfile = payload.UIProfile;
_playerInfo.Skin = new Skin()
{
SkinType = payload.SkinId,
Texture = Convert.FromBase64String((string)payload.SkinData),
};
}
catch (Exception e)
{
Log.Error("Skin info", e);
}
}
{
if (Log.IsDebugEnabled)
{
Log.Debug("Input JSON string: " + certificateChain);
}
dynamic json = JObject.Parse(certificateChain);
if (Log.IsDebugEnabled)
{
Log.Debug($"JSON:\n{json}");
}
string validationKey = null;
foreach (dynamic o in json.chain)
{
IDictionary <string, dynamic> headers = JWT.Headers(o.ToString());
if (Log.IsDebugEnabled)
{
Log.Debug("Raw chain element:\n" + o.ToString());
Log.Debug($"JWT Header: {string.Join(";", headers)}");
dynamic jsonPayload = JObject.Parse(JWT.Payload(o.ToString()));
Log.Debug($"JWT Payload:\n{jsonPayload}");
}
// x5u cert (string): MHYwEAYHKoZIzj0CAQYFK4EEACIDYgAE8ELkixyLcwlZryUQcu1TvPOmI2B7vX83ndnWRUaXm74wFfa5f/lwQNTfrLVHa2PmenpGI6JhIMUJaWZrjmMj90NoKNFSNBuKdm8rYiXsfaz3K36x/1U26HpG0ZxK/V1V
if (headers.ContainsKey("x5u"))
{
string certString = headers["x5u"];
if (Log.IsDebugEnabled)
{
Log.Debug($"x5u cert (string): {certString}");
ECDiffieHellmanPublicKey publicKey = CryptoUtils.CreateEcDiffieHellmanPublicKey(certString);
Log.Debug($"Cert:\n{publicKey.ToXmlString()}");
}
// Validate
CngKey newKey = CryptoUtils.ImportECDsaCngKeyFromString(certString);
CertificateData data = JWT.Decode <CertificateData>(o.ToString(), newKey);
if (data != null)
{
if (Log.IsDebugEnabled)
{
Log.Debug("Decoded token success");
}
if (CertificateData.MojangRootKey.Equals(certString, StringComparison.InvariantCultureIgnoreCase))
{
Log.Debug("Got Mojang key. Is valid = " + data.CertificateAuthority);
validationKey = data.IdentityPublicKey;
}
else if (validationKey != null && validationKey.Equals(certString, StringComparison.InvariantCultureIgnoreCase))
{
_playerInfo.CertificateData = data;
}
else
{
if (data.ExtraData == null)
{
continue;
}
// Self signed, make sure they don't fake XUID
if (data.ExtraData.Xuid != null)
{
Log.Warn("Received fake XUID from " + data.ExtraData.DisplayName);
data.ExtraData.Xuid = null;
}
_playerInfo.CertificateData = data;
}
}
else
{
Log.Error("Not a valid Identity Public Key for decoding");
}
}
}
//TODO: Implement disconnect here
{
_playerInfo.Username = _playerInfo.CertificateData.ExtraData.DisplayName;
_session.Username = _playerInfo.Username;
string identity = _playerInfo.CertificateData.ExtraData.Identity;
if (Log.IsDebugEnabled)
{
Log.Debug($"Connecting user {_playerInfo.Username} with identity={identity}");
}
_playerInfo.ClientUuid = new UUID(identity);
_session.CryptoContext = new CryptoContext
{
UseEncryption = Config.GetProperty("UseEncryptionForAll", false) || (Config.GetProperty("UseEncryption", true) && !string.IsNullOrWhiteSpace(_playerInfo.CertificateData.ExtraData.Xuid)),
};
if (_session.CryptoContext.UseEncryption)
{
ECDiffieHellmanPublicKey publicKey = CryptoUtils.CreateEcDiffieHellmanPublicKey(_playerInfo.CertificateData.IdentityPublicKey);
if (Log.IsDebugEnabled)
{
Log.Debug($"Cert:\n{publicKey.ToXmlString()}");
}
// Create shared shared secret
ECDiffieHellmanCng ecKey = new ECDiffieHellmanCng(384);
ecKey.HashAlgorithm = CngAlgorithm.Sha256;
ecKey.KeyDerivationFunction = ECDiffieHellmanKeyDerivationFunction.Hash;
ecKey.SecretPrepend = Encoding.UTF8.GetBytes("RANDOM SECRET"); // Server token
byte[] secret = ecKey.DeriveKeyMaterial(publicKey);
if (Log.IsDebugEnabled)
{
Log.Debug($"SECRET KEY (b64):\n{Convert.ToBase64String(secret)}");
}
{
RijndaelManaged rijAlg = new RijndaelManaged
{
BlockSize = 128,
Padding = PaddingMode.None,
Mode = CipherMode.CFB,
FeedbackSize = 8,
Key = secret,
IV = secret.Take(16).ToArray(),
};
// Create a decrytor to perform the stream transform.
ICryptoTransform decryptor = rijAlg.CreateDecryptor(rijAlg.Key, rijAlg.IV);
MemoryStream inputStream = new MemoryStream();
CryptoStream cryptoStreamIn = new CryptoStream(inputStream, decryptor, CryptoStreamMode.Read);
ICryptoTransform encryptor = rijAlg.CreateEncryptor(rijAlg.Key, rijAlg.IV);
MemoryStream outputStream = new MemoryStream();
CryptoStream cryptoStreamOut = new CryptoStream(outputStream, encryptor, CryptoStreamMode.Write);
_session.CryptoContext.Algorithm = rijAlg;
_session.CryptoContext.Decryptor = decryptor;
_session.CryptoContext.Encryptor = encryptor;
_session.CryptoContext.InputStream = inputStream;
_session.CryptoContext.OutputStream = outputStream;
_session.CryptoContext.CryptoStreamIn = cryptoStreamIn;
_session.CryptoContext.CryptoStreamOut = cryptoStreamOut;
}
var response = McpeServerExchange.CreateObject();
response.NoBatch = true;
response.ForceClear = true;
response.serverPublicKey = Convert.ToBase64String(ecKey.PublicKey.GetDerEncoded());
response.tokenLength = (short)ecKey.SecretPrepend.Length;
response.token = ecKey.SecretPrepend;
_session.SendPackage(response);
if (Log.IsDebugEnabled)
{
Log.Warn($"Encryption enabled for {_session.Username}");
}
}
}
}
if (!_session.CryptoContext.UseEncryption)
{
_session.MessageHandler.HandleMcpeClientMagic(null);
}
}
catch (Exception e)
{
Log.Error("Decrypt", e);
}
}
protected void DecodeCert(McpeLogin message)
{
_playerInfo = new PlayerInfo();
// Get bytes
byte[] buffer = message.payload;
//Log.Debug($"Unknown byte in login packet is: {message.unknown}");
if (message.payload.Length != buffer.Length)
{
Log.Debug($"Wrong lenght {message.payload.Length} != {message.payload.Length}");
throw new Exception($"Wrong lenght {message.payload.Length} != {message.payload.Length}");
}
// Decompress bytes
Log.Debug("Lenght: " + message.payload.Length + ", Message: " + Convert.ToBase64String(buffer));
//MemoryStream stream = new MemoryStream(buffer);
//if (stream.ReadByte() != 0x78)
//{
// throw new InvalidDataException("Incorrect ZLib header. Expected 0x78 0x9C");
//}
//stream.ReadByte();
string certificateChain;
string skinData;
//using (var defStream2 = new DeflateStream(stream, CompressionMode.Decompress, false))
{
// Get actual package out of bytes
//using (MemoryStream destination = MiNetServer.MemoryStreamManager.GetStream())
{
//defStream2.CopyTo(destination);
var destination = new MemoryStream(buffer);
destination.Position = 0;
NbtBinaryReader reader = new NbtBinaryReader(destination, false);
try
{
var countCertData = reader.ReadInt32();
Log.Debug("Count cert: " + countCertData);
certificateChain = Encoding.UTF8.GetString(reader.ReadBytes(countCertData));
Log.Debug("Decompressed certificateChain " + certificateChain);
var countSkinData = reader.ReadInt32();
Log.Debug("Count skin: " + countSkinData);
skinData = Encoding.UTF8.GetString(reader.ReadBytes(countSkinData));
Log.Debug("Decompressed skinData" + skinData);
}
catch (Exception e)
{
Log.Error("Parsing login", e);
return;
}
}
}
try
{
{
if (Log.IsDebugEnabled)
{
Log.Debug("Input SKIN string: " + skinData);
}
IDictionary <string, dynamic> headers = JWT.Headers(skinData);
dynamic payload = JObject.Parse(JWT.Payload(skinData));
if (Log.IsDebugEnabled)
{
Log.Debug($"Skin JWT Header: {string.Join(";", headers)}");
}
if (Log.IsDebugEnabled)
{
Log.Debug($"Skin JWT Payload:\n{payload.ToString()}");
}
// Skin JWT Payload:
//{
// "ADRole": 2,
// "ClientRandomId": 1423700530444426768,
// "CurrentInputMode": 1,
// "DefaultInputMode": 1,
// "DeviceModel": "ASUSTeK COMPUTER INC. N550JK",
// "DeviceOS": 7,
// "GameVersion": "1.1.0",
// "GuiScale": 0,
// "LanguageCode": "en_US",
// "ServerAddress": "192.168.0.3:19132",
// "SkinData": "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",
// "SkinId": "Standard_Custom",
// "TenantId": "",
// "UIProfile": 0
//}
try
{
_playerInfo.ADRole = payload.ADRole;
_playerInfo.ClientId = payload.ClientRandomId;
_playerInfo.CurrentInputMode = payload.CurrentInputMode;
_playerInfo.DefaultInputMode = payload.DefaultInputMode;
_playerInfo.DeviceModel = payload.DeviceModel;
_playerInfo.DeviceOS = payload.DeviceOS;
_playerInfo.GameVersion = payload.GameVersion;
_playerInfo.GuiScale = payload.GuiScale;
_playerInfo.LanguageCode = payload.LanguageCode;
_playerInfo.ServerAddress = payload.ServerAddress;
_playerInfo.UIProfile = payload.UIProfile;
_playerInfo.Skin = new Skin()
{
SkinType = payload.SkinId,
Texture = Convert.FromBase64String((string)payload.SkinData),
};
}
catch (Exception e)
{
Log.Error("Skin info", e);
}
}
{
if (Log.IsDebugEnabled)
{
Log.Debug("Input JSON string: " + certificateChain);
}
dynamic json = JObject.Parse(certificateChain);
if (Log.IsDebugEnabled)
{
Log.Debug($"JSON:\n{json}");
}
string validationKey = null;
foreach (dynamic o in json.chain)
{
IDictionary <string, dynamic> headers = JWT.Headers(o.ToString());
dynamic jsonPayload = JObject.Parse(JWT.Payload(o.ToString()));
if (Log.IsDebugEnabled)
{
Log.Debug("Raw chain element:\n" + o.ToString());
Log.Debug($"JWT Header: {string.Join(";", headers)}");
Log.Debug($"JWT Payload:\n{jsonPayload}");
}
if (jsonPayload["extraData"] == null)
{
continue;
}
_playerInfo.Username = jsonPayload["extraData"]["displayName"];
_session.Username = _playerInfo.Username;
string identity = jsonPayload["extraData"]["identity"];
_playerInfo.ClientUuid = new UUID(new Guid(identity).ToByteArray());
_session.CryptoContext = new CryptoContext
{
UseEncryption = false
};
if (jsonPayload["extraData"]["XUID"] != null)
{
_playerInfo.CertificateData = new CertificateData
{
ExtraData = new ExtraData
{
Xuid = jsonPayload["extraData"]["XUID"]
}
};
}
else
{
_playerInfo.CertificateData = new CertificateData
{
ExtraData = new ExtraData
{
Xuid = ""
}
};
}
}
}
if (!_session.CryptoContext.UseEncryption)
{
_session.MessageHandler.HandleMcpeClientToServerHandshake(null);
}
}
catch (Exception e)
{
Log.Error("Decrypt", e);
}
}
internal void HandlePackage(Package message, PlayerNetworkSession playerSession)
{
//SignalTick();
try
{
if (message == null)
{
return;
}
if (typeof(UnknownPackage) == message.GetType())
{
UnknownPackage packet = (UnknownPackage)message;
if (Log.IsDebugEnabled)
{
Log.Warn($"Received unknown package 0x{message.Id:X2}\n{Package.HexDump(packet.Message)}");
}
message.PutPool();
return;
}
if (typeof(McpeWrapper) == message.GetType())
{
McpeWrapper batch = (McpeWrapper)message;
var messages = new List <Package>();
// Get bytes
byte[] payload = batch.payload;
if (playerSession.CryptoContext != null && playerSession.CryptoContext.UseEncryption)
{
payload = CryptoUtils.Decrypt(payload, playerSession.CryptoContext);
}
// Decompress bytes
MemoryStream stream = new MemoryStream(payload);
if (stream.ReadByte() != 0x78)
{
throw new InvalidDataException("Incorrect ZLib header. Expected 0x78 0x9C");
}
stream.ReadByte();
using (var defStream2 = new DeflateStream(stream, CompressionMode.Decompress, false))
{
// Get actual package out of bytes
using (MemoryStream destination = MiNetServer.MemoryStreamManager.GetStream())
{
defStream2.CopyTo(destination);
destination.Position = 0;
NbtBinaryReader reader = new NbtBinaryReader(destination, true);
while (destination.Position < destination.Length)
{
//int len = reader.ReadInt32();
int len = BatchUtils.ReadLength(destination);
byte[] internalBuffer = reader.ReadBytes(len);
//if (Log.IsDebugEnabled)
// Log.Debug($"0x{internalBuffer[0]:x2}\n{Package.HexDump(internalBuffer)}");
messages.Add(PackageFactory.CreatePackage(internalBuffer[0], internalBuffer, "mcpe") ??
new UnknownPackage(internalBuffer[0], internalBuffer));
}
if (destination.Length > destination.Position)
{
throw new Exception("Have more data");
}
}
}
foreach (var msg in messages)
{
// Temp fix for performance, take 1.
var interact = msg as McpeInteract;
if (interact?.actionId == 4 && interact.targetRuntimeEntityId == 0)
{
continue;
}
msg.DatagramSequenceNumber = batch.DatagramSequenceNumber;
msg.Reliability = batch.Reliability;
msg.ReliableMessageNumber = batch.ReliableMessageNumber;
msg.OrderingChannel = batch.OrderingChannel;
msg.OrderingIndex = batch.OrderingIndex;
HandlePackage(msg, playerSession);
}
message.PutPool();
return;
}
MiNetServer.TraceReceive(message);
if (CryptoContext != null && CryptoContext.UseEncryption)
{
MiNetServer.FastThreadPool.QueueUserWorkItem(delegate()
{
HandlePackage(MessageHandler, message as Package);
message.PutPool();
});
}
else
{
HandlePackage(MessageHandler, message);
message.PutPool();
}
}
catch (Exception e)
{
Log.Error("Package handling", e);
throw;
}
}
private void HandleChunk(bool cacheEnabled, uint subChunkCount, byte[] chunkData, int cx, int cz, Action <ChunkColumn> callback)
{
if (cacheEnabled)
{
Log.Warn($"Unsupported cache enabled!");
}
bool gotLight = false;
try
{
using (MemoryStream stream = new MemoryStream(chunkData))
{
NbtBinaryReader defStream = new NbtBinaryReader(stream, true);
//int count = defStream.ReadByte();
if (subChunkCount < 1)
{
Log.Warn("Nothing to read");
return;
}
ChunkColumn chunkColumn = new ChunkColumn();
chunkColumn.IsDirty = true;
chunkColumn.X = cx;
chunkColumn.Z = cz;
for (int s = 0; s < subChunkCount; s++)
{
var section = chunkColumn.Sections[s] as ChunkSection;
int version = defStream.ReadByte();
if (version == 1 || version == 8)
{
int storageSize = defStream.ReadByte();
if (section == null)
{
section = new ChunkSection(chunkColumn, s, true, 2);
}
for (int storage = 0; storage < storageSize; storage++)
{
int paletteAndFlag = defStream.ReadByte();
bool isRuntime = (paletteAndFlag & 1) != 0;
int bitsPerBlock = paletteAndFlag >> 1;
int blocksPerWord = (int)Math.Floor(32f / bitsPerBlock);
int wordCount = (int)Math.Ceiling(4096.0f / blocksPerWord);
uint[] words = new uint[wordCount];
for (int w = 0; w < wordCount; w++)
{
int word = defStream.ReadInt32();
words[w] = SwapBytes((uint)word);
}
uint[] pallete = new uint[0];
if (isRuntime)
{
int palleteSize = VarInt.ReadSInt32(stream);
pallete = new uint[palleteSize];
for (int pi = 0; pi < pallete.Length; pi++)
{
var ui = (uint)VarInt.ReadSInt32(stream);
pallete[pi] = ui;
}
if (palleteSize == 0)
{
Log.Warn($"Pallete size is 0");
continue;
}
}
int position = 0;
for (int w = 0; w < wordCount; w++)
{
uint word = words[w];
for (int block = 0; block < blocksPerWord; block++)
{
if (position >= 4096)
{
break; // padding bytes
}
uint state =
(uint)((word >> ((position % blocksPerWord) * bitsPerBlock)) &
((1 << bitsPerBlock) - 1));
int x = (position >> 8) & 0xF;
int y = position & 0xF;
int z = (position >> 4) & 0xF;
if (state >= pallete.Length)
{
continue;
}
BlockState translated = GetBlockState(pallete[state]);
if (translated != null)
{
if (translated.Block is Water)
{
string a = "";
}
section.Set(storage, x, y, z, translated);
}
position++;
}
if (position >= 4096)
{
break;
}
}
}
}
else
{
if (section == null)
{
section = new ChunkSection(chunkColumn, s, true, 1);
}
#region OldFormat
byte[] blockIds = new byte[4096];
defStream.Read(blockIds, 0, blockIds.Length);
NibbleArray data = new NibbleArray(4096);
defStream.Read(data.Data, 0, data.Data.Length);
for (int x = 0; x < 16; x++)
{
for (int z = 0; z < 16; z++)
{
for (int y = 0; y < 16; y++)
{
int idx = (x << 8) + (z << 4) + y;
var id = blockIds[idx];
var meta = data[idx];
var ruid = BlockFactory.GetBlockStateID(id, meta);
BlockState result = null;
if (!_convertedStates.TryGetValue(
ruid, out result))
{
if (id == 124 || id == 123)
{
result = BlockFactory.GetBlockState("minecraft:redstone_lamp");
if (id == 124)
{
result = result.WithProperty("lit", "true");
}
}
else if (id > 0 && result == null)
{
var reverseMap =
MiNET.Worlds.AnvilWorldProvider.Convert.FirstOrDefault(
map => map.Value.Item1 == id);
if (reverseMap.Value != null)
{
id = (byte)reverseMap.Key;
}
var res = BlockFactory.GetBlockStateID(id, meta);
if (AnvilWorldProvider.BlockStateMapper.TryGetValue(res, out var res2))
{
var t = BlockFactory.GetBlockState(res2);
t = TranslateBlockState(t, id, meta);
result = t;
}
else
{
Log.Info($"Did not find anvil statemap: {result.Name}");
result = TranslateBlockState(
BlockFactory.GetBlockState(res), id, meta);
}
}
if (result == null)
{
var results = BlockFactory.RuntimeIdTable.Where(xx => xx.Id == id)
.ToArray();
if (results.Length > 0)
{
var first = results.FirstOrDefault(xx => xx.Data == meta);
if (first == default)
{
first = results[0];
}
result = TranslateBlockState(
BlockFactory.GetBlockState((uint)first.RuntimeId), id, meta);
}
}
if (result == null)
{
result = new BlockState()
{
Name = $"{id}:{meta.ToString()}",
Model = BlockFactory.UnknownBlockModel,
Block = new Block(0)
{
}
};
Log.Info($"Unknown block: {id}:{meta}");
}
if (result != null)
{
_convertedStates.TryAdd(ruid, result);
}
}
if (result != null)
{
section.Set(x, y, z, result);
}
else
{
Log.Info($"Unknown block: {id}:{meta}");
}
}
}
}
#endregion
}
if (UseAlexChunks)
{
// Log.Info($"Alex chunk!");
var rawSky = new API.Utils.NibbleArray(4096);
defStream.Read(rawSky.Data, 0, rawSky.Data.Length);
var rawBlock = new API.Utils.NibbleArray(4096);
defStream.Read(rawBlock.Data, 0, rawBlock.Data.Length);
for (int x = 0; x < 16; x++)
{
for (int y = 0; y < 16; y++)
{
for (int z = 0; z < 16; z++)
{
var peIndex = (x * 256) + (z * 16) + y;
var sky = rawSky[peIndex];
var block = rawBlock[peIndex];
var idx = y << 8 | z << 4 | x;
section.SkyLight[idx] = sky;
section.BlockLight[idx] = block;
}
}
}
gotLight = true;
}
section.RemoveInvalidBlocks();
section.IsDirty = true;
//Make sure the section is saved.
chunkColumn.Sections[s] = section;
}
/* byte[] ba = new byte[512];
* if (defStream.Read(ba, 0, 256 * 2) != 256 * 2) Log.Error($"Out of data height");
*
* Buffer.BlockCopy(ba, 0, chunkColumn.Height, 0, 512);*/
int[] biomeIds = new int[256];
for (int i = 0; i < biomeIds.Length; i++)
{
biomeIds[i] = defStream.ReadByte();
}
chunkColumn.BiomeId = biomeIds;
if (stream.Position >= stream.Length - 1)
{
callback?.Invoke(chunkColumn);
return;
}
int borderBlock = VarInt.ReadSInt32(stream);
if (borderBlock > 0)
{
byte[] buf = new byte[borderBlock];
int len = defStream.Read(buf, 0, borderBlock);
}
if (stream.Position < stream.Length - 1)
{
int loop = 0;
while (stream.Position < stream.Length - 1)
{
try
{
NbtFile file = new NbtFile()
{
BigEndian = false,
UseVarInt = true
};
file.LoadFromStream(stream, NbtCompression.None);
if (file.RootTag.Name == "alex")
{
NbtCompound alexCompound = (NbtCompound)file.RootTag;
for (int ci = 0; ci < subChunkCount; ci++)
{
var section = (ChunkSection)chunkColumn.Sections[ci];
var rawSky = new API.Utils.NibbleArray(4096);
if (alexCompound.TryGet($"skylight-{ci}", out NbtByteArray skyData))
{
rawSky.Data = skyData.Value;
}
//defStream.Read(rawSky.Data, 0, rawSky.Data.Length);
var rawBlock = new API.Utils.NibbleArray(4096);
if (alexCompound.TryGet($"blocklight-{ci}", out NbtByteArray blockData))
{
rawBlock.Data = blockData.Value;
}
for (int x = 0; x < 16; x++)
{
for (int y = 0; y < 16; y++)
{
for (int z = 0; z < 16; z++)
{
var peIndex = (x * 256) + (z * 16) + y;
var sky = rawSky[peIndex];
var block = rawBlock[peIndex];
var idx = y << 8 | z << 4 | x;
section.SkyLight[idx] = sky;
section.BlockLight[idx] = block;
}
}
}
chunkColumn.Sections[ci] = section;
}
gotLight = true;
}
if (stream.Position < stream.Length - 1)
{
// pre = stream.ReadByte();
}
}
catch (Exception ex)
{
// Log.Warn(ex, $"Reading chunk extra data (Loop={loop})");
}
loop++;
}
}
if (stream.Position < stream.Length - 1)
{
Log.Warn(
$"Still have data to read\n{Packet.HexDump(defStream.ReadBytes((int) (stream.Length - stream.Position)))}");
}
if (gotLight)
{
chunkColumn.SkyLightDirty = false;
chunkColumn.BlockLightDirty = false;
}
chunkColumn.CalculateHeight(!gotLight && ClientSideLighting);
//Done processing this chunk, send to world
callback?.Invoke(chunkColumn);
}
}
catch (Exception ex)
{
Log.Error($"Exception in chunk loading: {ex.ToString()}");
}
finally
{
}
}
public static ChunkColumn DecocedChunkColumn(byte[] buffer)
{
lock (_chunkRead)
{
MemoryStream stream = new MemoryStream(buffer);
{
NbtBinaryReader defStream = new NbtBinaryReader(stream, true);
Log.Debug("New chunk column");
int count = defStream.ReadByte();
if (count < 1)
{
Log.Warn("Nothing to read");
return(null);
}
if (count > 1)
{
Log.Debug($"Reading {count} sections");
}
else
{
Log.Debug($"Reading {count} sections");
}
ChunkColumn chunkColumn = new ChunkColumn();
for (int s = 0; s < count; s++)
{
int idx = defStream.ReadByte();
Log.Debug($"New section {s}, index={idx}");
Chunk chunk = chunkColumn.chunks[s];
int chunkSize = 16 * 16 * 16;
defStream.Read(chunk.blocks, 0, chunkSize);
//Log.Debug($"Blocks1:\n{Package.HexDump(chunk.blocks)}");
if (defStream.Read(chunk.metadata.Data, 0, chunkSize / 2) != chunkSize / 2)
{
Log.Error($"Out of data: metadata");
}
//Log.Debug($"metadata:\n{Package.HexDump(chunk.metadata.Data)}");
if (defStream.Read(chunk.skylight.Data, 0, chunkSize / 2) != chunkSize / 2)
{
Log.Error($"Out of data: skylight");
}
//Log.Debug($"skylight:\n{Package.HexDump(chunk.skylight.Data)}");
if (defStream.Read(chunk.blocklight.Data, 0, chunkSize / 2) != chunkSize / 2)
{
Log.Error($"Out of data: blocklight");
}
//Log.Debug($"blocklight:\n{Package.HexDump(chunk.blocklight.Data)}");
//Log.Debug($"skylight.Data:\n{Package.HexDump(chunk.skylight.Data, 64)}");
//Log.Debug($"blocklight.Data:\n{Package.HexDump(chunk.blocklight.Data)}");
//byte[] ints = new byte[256*4];
//var readLen = defStream.Read(ints, 0, ints.Length);
//if (readLen != ints.Length) Log.Error($"Out of data biomeColors, read lenght {readLen}");
//Log.Debug($"biomeColor (pre):\n{Package.HexDump(ints)}");
//return null;
//int j = 0;
//for (int i = 0; i < ints.Length; i = i + 4)
//{
// chunk.biomeId[j] = ints[i];
// chunk.biomeColor[j++] = BitConverter.ToInt32(new[] {(byte) 0, ints[i + 1], ints[i + 2], ints[i + 3]}, 0);
//}
//Log.Debug($"biomeId (post):\n{Package.HexDump(chunk.biomeId)}");
//if (stream.Position >= stream.Length - 1) return chunk;
////return chunk;
//return chunk;
}
//if (stream.Position >= stream.Length - 1) continue;
if (defStream.Read(chunkColumn.height, 0, 256 * 2) != 256 * 2)
{
Log.Error($"Out of data height");
}
//Log.Debug($"Heights:\n{Package.HexDump(chunk.height)}");
//if (stream.Position >= stream.Length - 1) continue;
if (defStream.Read(chunkColumn.biomeId, 0, 256) != 256)
{
Log.Error($"Out of data biomeId");
}
//Log.Debug($"biomeId:\n{Package.HexDump(chunk.biomeId)}");
//if (stream.Position >= stream.Length - 1) continue;
int borderBlock = VarInt.ReadSInt32(stream);
if (borderBlock != 0)
{
Log.Warn($"??? Got borderblock {borderBlock}");
}
int extraCount = VarInt.ReadSInt32(stream);
if (extraCount != 0)
{
//Log.Warn($"Got extradata\n{Package.HexDump(defStream.ReadBytes(extraCount*10))}");
for (int i = 0; i < extraCount; i++)
{
var hash = VarInt.ReadSInt32(stream);
var blockData = defStream.ReadInt16();
Log.Warn($"Got extradata: hash=0x{hash:X2}, blockdata=0x{blockData:X2}");
}
}
if (stream.Position < stream.Length - 1)
{
//Log.Debug($"Got NBT data\n{Package.HexDump(defStream.ReadBytes((int) (stream.Length - stream.Position)))}");
while (stream.Position < stream.Length)
{
NbtFile file = new NbtFile()
{
BigEndian = false, UseVarInt = true
};
file.LoadFromStream(stream, NbtCompression.None);
Log.Debug($"Blockentity: {file.RootTag}");
}
}
if (stream.Position < stream.Length - 1)
{
Log.Warn($"Still have data to read\n{Package.HexDump(defStream.ReadBytes((int)(stream.Length - stream.Position)))}");
}
}
return(new ChunkColumn());
}
}
internal override bool ReadTag(NbtBinaryReader readStream)
{
int length = readStream.ReadInt32();
if (length < 0)
{
throw new NbtFormatException("Negative length given in TAG_Byte_Array");
}
if (readStream.Selector != null && !readStream.Selector(this))
{
readStream.Skip(length);
return false;
}
Value = readStream.ReadBytes(length);
if (Value.Length < length)
{
throw new EndOfStreamException();
}
return true;
}