private void HandleLoginServer(LoginServer payload, PayloadWriter writer)
{
byte[] loginCipher = payload.Cipher;
byte[] result = Crypto.HandleUser(loginCipher, _sharedSecret);
Program.LogDebug($" User: {Serializer.DumpBytes(result)}");
MemoryStream stream = new MemoryStream(result);
BinaryReader reader = new BinaryReader(stream);
bool invalid = false;
byte[] nameBytes = null;
int nameLength = reader.ReadByte();
if (nameLength < 32)
{
nameBytes = reader.ReadBytes(nameLength);
}
else
{
invalid = true;
}
byte[] passwordBytes = null;
if (!invalid)
{
int passwordLength = reader.ReadByte();
if (nameLength < 32)
{
passwordBytes = reader.ReadBytes(passwordLength);
}
else
{
invalid = true;
}
}
if (invalid)
{
StatusMsg resultPayload1 = Payloads.CreatePayload <StatusMsg>();
resultPayload1.Errorcode = 3;
resultPayload1.Errormsg = "Encryption failure";
resultPayload1.TicketId = payload.TicketId;
SendReply(writer, resultPayload1);
return;
}
string name = Encoding.ASCII.GetString(nameBytes);
byte[] password = Crypto.HashPassword(passwordBytes);
Account = Program.Accounts.Get(Database.Connection, name);
if (Account == null)
{
StatusMsg resultPayload1 = Payloads.CreatePayload <StatusMsg>();
resultPayload1.Errorcode = 1;
resultPayload1.Errormsg = "Account not found";
resultPayload1.TicketId = payload.TicketId;
SendReply(writer, resultPayload1);
return;
}
if (!Serializer.CompareArrays(password, Account.Password))
{
StatusMsg resultPayload1 = Payloads.CreatePayload <StatusMsg>();
resultPayload1.Errorcode = 1;
resultPayload1.Errormsg = "Wrong password";
resultPayload1.TicketId = payload.TicketId;
SendReply(writer, resultPayload1);
return;
}
byte[] secret = Crypto.HandleSessionKey(Crypto.CreateSecretKey(), _sharedSecret);
LoginReplyCipher resultPayload = Payloads.CreatePayload <LoginReplyCipher>();
resultPayload.PermId = Account.Id;
resultPayload.Cipher = secret;
resultPayload.TicketId = payload.TicketId;
SendReply(writer, resultPayload);
Program.Log($"Server logged in for user {name}");
}
private void HandleRegisterUser(RegisterUser payload, PayloadWriter writer)
{
byte[] loginCipher = payload.Cipher;
byte[] result = Crypto.HandleUser(loginCipher, _sharedSecret);
Program.LogDebug($" User: {Serializer.DumpBytes(result)}");
MemoryStream stream = new MemoryStream(result);
BinaryReader reader = new BinaryReader(stream);
bool invalid = false;
byte[] nameBytes = null;
int nameLength = reader.ReadByte();
if (nameLength < 32)
{
nameBytes = reader.ReadBytes(nameLength);
}
else
{
invalid = true;
}
byte[] passwordBytes = null;
if (!invalid)
{
int passwordLength = reader.ReadByte();
if (nameLength < 32)
{
passwordBytes = reader.ReadBytes(passwordLength);
}
else
{
invalid = true;
}
}
byte[] cdKey = null;
if (!invalid)
{
int keysLength = reader.ReadByte();
int keyPool = reader.ReadByte();
int keyLength = reader.ReadByte();
if (keysLength != 1 || keyPool != 1 || keyLength != 16)
{
invalid = true;
}
else
{
cdKey = reader.ReadBytes(keyLength);
}
}
if (invalid)
{
StatusMsg resultPayload1 = Payloads.CreatePayload <StatusMsg>();
resultPayload1.Errorcode = 3;
resultPayload1.Errormsg = "Encryption failure";
resultPayload1.TicketId = payload.TicketId;
SendReply(writer, resultPayload1);
return;
}
string name = Encoding.ASCII.GetString(nameBytes);
byte[] password = Crypto.HashPassword(passwordBytes);
uint id = Program.Accounts.Create(Database.Connection, name, password, cdKey);
if (id == 0)
{
StatusMsg resultPayload1 = Payloads.CreatePayload <StatusMsg>();
resultPayload1.Errorcode = 1;
resultPayload1.Errormsg = "Username already in use";
resultPayload1.TicketId = payload.TicketId;
SendReply(writer, resultPayload1);
return;
}
Account = Program.Accounts.Get(Database.Connection, name);
if (Account == null)
{
StatusMsg resultPayload1 = Payloads.CreatePayload <StatusMsg>();
resultPayload1.Errorcode = 1;
resultPayload1.Errormsg = "Account not created";
resultPayload1.TicketId = payload.TicketId;
SendReply(writer, resultPayload1);
return;
}
byte[] secret = Crypto.HandleSessionKey(Crypto.CreateSecretKey(), _sharedSecret);
LoginReplyCipher resultPayload2 = Payloads.CreatePayload <LoginReplyCipher>();
resultPayload2.PermId = Account.Id;
resultPayload2.Cipher = secret;
resultPayload2.TicketId = payload.TicketId;
SendReply(writer, resultPayload2);
Program.Log($"Account created for {name}");
}
