private static void ProcessRequestSocket(TcpListener tcpListener)
{
Console.WriteLine("Processing...");
var tcpClient = tcpListener.AcceptSocket();
var bytes = new byte[tcpClient.ReceiveBufferSize];
var countbyte = tcpClient.Receive(bytes);
return;
byte[] nonceFromClient = new byte[16];
var tcpMessage = TcpMessage.Decode(bytes);
var binaryReader = new BinaryReader(new MemoryStream(tcpMessage.Body, false));
var a = binaryReader.ReadInt64();
var msgId = binaryReader.ReadInt64();
var datalength = binaryReader.ReadInt32();
var data = binaryReader.ReadBytes(datalength);
var binaryReader2 = new BinaryReader(new MemoryStream(data, false));
const int responseConstructorNumber = 0x60469778;
var responseCode = binaryReader2.ReadInt32();
Console.WriteLine("Request code: " + responseCode);
if (responseCode == responseConstructorNumber)//---Step1_PQRequest
{
nonceFromClient = binaryReader2.ReadBytes(16);
}
var nonce = new byte[16];
new Random().NextBytes(nonce);
var fingerprint = StringToByteArray("216be86c022bb4c3");
//var rr = BitConverter.ToString(fingerprint).Replace("-", "");
var step1 = new Step1_Response()
{
Pq = new BigInteger(1, BitConverter.GetBytes(880)),
ServerNonce = nonceFromClient,
Nonce = nonce,
Fingerprints = new List <byte[]>()
{
fingerprint
}
};
var bytes1 = PrepareToSend(step1.ToBytes());
var datatosend = Encode(bytes1, 11);
//Byte[] sendBytes = Encoding.UTF8.GetBytes("Is anybody there?");
tcpClient.Send(datatosend, SocketFlags.Truncated);
//tcpClient.Close();
}
private static void ProcessRequest(TcpListener tcpListener)
{
Console.WriteLine("Processing...");
var tcpClient = tcpListener.AcceptTcpClient();
var netStream = tcpClient.GetStream();
BigInteger ga = null;
byte[] newNonce = new byte[32];
BigInteger a = new BigInteger(2048, new Random());
var dhPrime = new BigInteger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
BigInteger gb = null;
var sequenceNumber = 1;
ulong? messageId = null;
var privateKey = new BigInteger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
AuthKey authKey = null;
//var getingCounter = 0;
//while (true)
//{
// if (!netStream.DataAvailable)
// continue;
// Console.WriteLine("Get data " + ++getingCounter);
//}
while (tcpClient.Connected)
{
System.Threading.Thread.Sleep(100);
if (!netStream.DataAvailable)
{
continue;
}
byte[] nonceFromClient = new byte[16];
byte[] servernonce = new byte[16];
uint responseCode = 0;
int innerCode = 0;
long authkeysample = 123456789;
const long step1Constructor = 0x60469778;
const long step2Constructor = 0xd712e4be;
const long step3Constructor = 0xf5045f1f;
if (netStream.CanRead)
{
var bytes = new byte[tcpClient.ReceiveBufferSize];
netStream.Read(bytes, 0, (int)tcpClient.ReceiveBufferSize);
var tcpMessage = TcpMessage.Decode(bytes);
var binaryReader = new BinaryReader(new MemoryStream(tcpMessage.Body, false));
var authKeyId = binaryReader.ReadInt64();
if (authKeyId == 0)
{
var msgId = binaryReader.ReadInt64();
var datalength = binaryReader.ReadInt32();
var data = binaryReader.ReadBytes(datalength);
var binaryReader2 = new BinaryReader(new MemoryStream(data, false));
responseCode = binaryReader2.ReadUInt32();
Console.WriteLine("Request code: " + responseCode);
if (responseCode == step1Constructor) //---Step1_PQRequest
{
nonceFromClient = binaryReader2.ReadBytes(16);
}
else if (responseCode == step2Constructor) //---Step1_PQRequest
{
nonceFromClient = binaryReader2.ReadBytes(16);
servernonce = binaryReader2.ReadBytes(16);
var p = binaryReader2.ReadBytes(4);
var q = binaryReader2.ReadBytes(8);
var targetFingerprint = BitConverter.ToString(binaryReader2.ReadBytes(8)).Replace("-", string.Empty);
//TODO: need to decryption
var ciphertext = Bytes.read(binaryReader2);
ciphertext = RSA.Decrypt(targetFingerprint, ciphertext, privateKey, 0, ciphertext.Length);
var cipherReader = new BinaryReader(new MemoryStream(ciphertext, false));
var hashsum = cipherReader.ReadBytes(20);
var innercode = cipherReader.ReadUInt32();//0x83c95aec
var pq = cipherReader.ReadBytes(20);
var noncetemp = cipherReader.ReadBytes(16);
var servernoncetemp = cipherReader.ReadBytes(16);
newNonce = cipherReader.ReadBytes(32);
//Array.Copy(ciphertext, ciphertext.Length - 32, newNonce, 0, 32);
//ciphertext.CopyTo(newnoncetemp, ciphertext.Length - 32);
}
else if (responseCode == step3Constructor) //---Step1_PQRequest
{
nonceFromClient = binaryReader2.ReadBytes(16);
servernonce = binaryReader2.ReadBytes(16);
//TODO: need to decryption
var ciphertext = Bytes.read(binaryReader2);
AESKeyData key = AES.GenerateKeyDataFromNonces(servernonce, newNonce);
var cleartext = AES.DecryptAES(key, ciphertext);
var binaryReadernner = new BinaryReader(new MemoryStream(cleartext, false));
var hasheddata = binaryReadernner.ReadBytes(20);
var client_dh_inner_data_code = binaryReadernner.ReadUInt32();
if (client_dh_inner_data_code != 0x6643b654)
{
throw new Exception("We have a complex story");
}
var nonceFromClient_temp = binaryReadernner.ReadBytes(16);
var servernonce_temp = binaryReadernner.ReadBytes(16);
var zero = binaryReadernner.ReadUInt64();
gb = new BigInteger(Bytes.read(binaryReadernner));
}
}
else
{
var _gba = gb.ModPow(a, dhPrime);
authKey = new AuthKey(_gba);
var decodeMessage = DecodeMessage(tcpMessage.Body, authKey);
var objrawReader = new BinaryReader(new MemoryStream(decodeMessage.Item1, false));
messageId = decodeMessage.Item2;
innerCode = objrawReader.ReadInt32();
if (innerCode == 0x62d6b459)//acknowledged
{
var vector = objrawReader.ReadInt32();
var msgCount = objrawReader.ReadInt32();
continue;
}
else //if (responseCode == -627372787)
{
objrawReader.BaseStream.Position += -4;
var obj = ObjectUtils.DeserializeObject(objrawReader);
if (obj is TLRequestInvokeWithLayer)
{
var invokewithlayer = (TLRequestInvokeWithLayer)obj;
if (invokewithlayer.Query is TLRequestInitConnection)
{
var requestInitConnection = (TLRequestInitConnection)invokewithlayer.Query;
}
else if (invokewithlayer.Query is TLRequestSendCode)
{
var requestSendCode = (TLRequestSendCode)invokewithlayer.Query;
}
}
else if (obj is TLRequestSendCode)
{
var requestSendCode = (TLRequestSendCode)obj;
}
else if (obj is TLRequestSignIn)
{
var requestSignIn = (TLRequestSignIn)obj;
}
else if (obj is TLRequestGetContacts)
{
var requestGetContacts = (TLRequestGetContacts)obj;
}
}
//var keyData = Helpers.CalcKey(buffer, messageKey, false);
//var data = AES.DecryptAES(keyData, buffer);
}
}
if (netStream.CanWrite)
{
var fingerprint = StringToByteArray("216be86c022bb4c3");
byte[] outputdata = null;
if (responseCode == step1Constructor)
{
var nonce = new byte[16];
new Random().NextBytes(nonce);
outputdata = new Step1_Response()
{
Pq = new BigInteger(1, BitConverter.GetBytes(880)),
ServerNonce = nonceFromClient,
Nonce = nonce,
Fingerprints = new List <byte[]>()
{
fingerprint
}
}.ToBytes();
}
else if (responseCode == step2Constructor)
{
//var nonce = new byte[16];
//new Random().NextBytes(nonce);
byte[] answer;
var hashsum = Encoding.UTF8.GetBytes("asdfghjklmnbvcxzasdf");
const uint innerCodetemp = 0xb5890dba;
AESKeyData key = AES.GenerateKeyDataFromNonces(servernonce, newNonce);
var g = 47;
ga = BigInteger.ValueOf(g).ModPow(a, dhPrime);
using (var memoryStream = new MemoryStream())
{
using (var binaryWriter = new BinaryWriter(memoryStream))
{
binaryWriter.Write(hashsum);
binaryWriter.Write(innerCodetemp);
binaryWriter.Write(nonceFromClient);
binaryWriter.Write(servernonce);
binaryWriter.Write(g);
Bytes.write(binaryWriter, dhPrime.ToByteArrayUnsigned());
Bytes.write(binaryWriter, ga.ToByteArrayUnsigned());
Bytes.write(binaryWriter, BitConverter.GetBytes((int)(Convert.ToInt64((DateTime.UtcNow - new DateTime(1970, 1, 1)).TotalMilliseconds) / 1000)));//server datetime
answer = memoryStream.ToArray();
}
}
outputdata = new Step2_Response()
{
ServerNonce = nonceFromClient,
Nonce = servernonce,
NewNonce = newNonce,
EncryptedAnswer = AES.EncryptAES(key, answer)
}.ToBytes();
}
else if (responseCode == step3Constructor)
{
var _gba = gb.ModPow(a, dhPrime);
authKey = new AuthKey(_gba);
var newNonceHash = authKey.CalcNewNonceHash(newNonce, 1);
const uint innerCodeTemp = 0x3bcbf734;
using (var memoryStream = new MemoryStream())
{
using (var binaryWriter = new BinaryWriter(memoryStream))
{
binaryWriter.Write(innerCodeTemp);
binaryWriter.Write(servernonce);
binaryWriter.Write(nonceFromClient);
binaryWriter.Write(newNonceHash);//hashnewnonce
outputdata = memoryStream.ToArray();
}
}
}
else if (innerCode == -2035355412)//TLRequestSendCode
{
#region Generate TLSentCode
var sentCode = new TLSentCode();
sentCode.PhoneRegistered = false;
sentCode.Timeout = 7777;
sentCode.PhoneCodeHash = "asdfghjklmnbvcxzasdf";
sentCode.Flags = 3;
sentCode.NextType = new TLCodeTypeSms();
sentCode.Type = new TLSentCodeTypeApp()
{
Length = 20
};
#endregion
using (var memoryStream = new MemoryStream())
{
using (var binaryWriter = new BinaryWriter(memoryStream))
{
binaryWriter.Write(0xf35c6d01); //main code
binaryWriter.Write(messageId.Value); //requestId -- ulong -- from mesage id
sentCode.SerializeBody(binaryWriter);
outputdata = memoryStream.ToArray();
}
}
}
else if (innerCode == -627372787)
{
#region Generate TLConfig
//---Genrate mock tlconfig
var config = new TLConfig();
config.CallConnectTimeoutMs = 7777;
config.CallPacketTimeoutMs = 7777;
config.CallReceiveTimeoutMs = 7777;
config.CallRingTimeoutMs = 7777;
config.ChatBigSize = 7777;
config.ChatSizeMax = 777;
config.Date = Convert.ToInt32((DateTime.UtcNow - new DateTime(1970, 1, 1)).TotalSeconds);
config.DcOptions = new TLVector <TLDcOption>()
{
new TLDcOption()
{
Flags = 0, Id = 1, IpAddress = "127.0.0.1", Port = 5000
}
};
config.DisabledFeatures = new TLVector <TLDisabledFeature>();
config.ForwardedCountMax = 777;
config.MegagroupSizeMax = 777;
config.NotifyCloudDelayMs = 7777;
config.NotifyDefaultDelayMs = 7777;
config.OfflineBlurTimeoutMs = 7777;
config.OfflineIdleTimeoutMs = 7777;
config.OnlineCloudTimeoutMs = 7777;
config.OnlineUpdatePeriodMs = 7777;
config.PhonecallsEnabled = false;
config.PinnedDialogsCountMax = 7;
config.PushChatLimit = 7;
config.PushChatPeriodMs = 777;
config.RatingEDecay = 777;
config.SavedGifsLimit = 777;
config.StickersRecentLimit = 777;
config.ThisDc = 1;//TODO: ---what's this?!---
config.MeUrlPrefix = "https://t.me/";
config.TestMode = false;
#endregion
using (var memoryStream = new MemoryStream())
{
using (var binaryWriter = new BinaryWriter(memoryStream))
{
binaryWriter.Write(0xf35c6d01); //main code
//binaryWriter.Write(0xf35c6d02);//code
binaryWriter.Write(messageId.Value); //requestId -- ulong -- from mesage id
//binaryWriter.Write(0x2144ca17);//innercode -- int
//binaryWriter.Write(1123456789);//sample code
//Serializers.Bytes.write(binaryWriter, config.Serialize());
config.SerializeBody(binaryWriter);
outputdata = memoryStream.ToArray();
}
}
}
else if (innerCode == -1126886015)
{
#region Generate TLAuthorization
var auth = new TeleSharp.TL.Auth.TLAuthorization();
auth.Flags = 3;
auth.User = new TLUser()
{
FirstName = "Meysami"
};
#endregion
using (var memoryStream = new MemoryStream())
{
using (var binaryWriter = new BinaryWriter(memoryStream))
{
binaryWriter.Write(0xf35c6d01); //main code
binaryWriter.Write(messageId.Value); //requestId -- ulong -- from mesage id
auth.SerializeBody(binaryWriter);
outputdata = memoryStream.ToArray();
}
}
}
else if (innerCode == 583445000)//GetContacts
{
#region Generate TLAbsContacts
var contacts = new TLContacts();
contacts.Contacts = new TLVector <TLContact>()
{
new TLContact()
{
UserId = 11
},
new TLContact()
{
UserId = 12
}
};
contacts.Users = new TLVector <TLAbsUser>()
{
new TLUser()
{
Bot = false, FirstName = "Mary", Id = 11
},
new TLUser()
{
Bot = false, FirstName = "Mary 2", Id = 12
}
};
#endregion
using (var memoryStream = new MemoryStream())
{
using (var binaryWriter = new BinaryWriter(memoryStream))
{
binaryWriter.Write(0xf35c6d01); //main code
binaryWriter.Write(messageId.Value); //requestId -- ulong -- from mesage id
contacts.SerializeBody(binaryWriter);
outputdata = memoryStream.ToArray();
}
}
}
else
{
continue;
}
if (innerCode != 0)
{
outputdata = PrepareToSend2(outputdata, authKey.Id, 0, 0, 0, servernonce, sequenceNumber, authKey);
}
else
{
outputdata = PrepareToSend(outputdata);
}
outputdata = Encode(outputdata, sequenceNumber++);
netStream.Write(outputdata, 0, outputdata.Length);
}
else
{
Console.WriteLine("You cannot write data to this stream.");
tcpClient.Close();
netStream.Close();
}
}
}