public async Task Auth()
{
var block = await ReadBlock();
if (block.Type == BlockType.HAND_SHAKE)
{
var resp = Authenticator.ValidateChallenge(block.Data.Span);
if (block.Id != 0)
{
ChangeId(block.Id);
}
block = new BlockData()
{
Id = Id, Type = BlockType.HAND_SHAKE, Data = resp
};
await WriteBlock(block);
block = await ReadBlock();
ConfigureCryptor(Authenticator.DecodePassword(block.Data.Span));
}
else if (block.Type == BlockType.FAST_CONNECT)
{
var data = block.Data;
var(id, challenge, password, encryptedData) = FastConnectUtils.ParseFactConnectData(data);
ConfigureCryptor(Authenticator.DecodePassword(password.Span));
block.Data = encryptedData.ToArray();
DecryptBlock(ref block);
if (id != 0)
{
ChangeId(id);
}
#pragma warning disable CS4014 // no wait the http connecting
this.ProcessConnect(block, true, Authenticator.ValidateChallenge(challenge.Span));
#pragma warning restore CS4014
}
}
public async Task <BlockData> FastConnect(int id, HostData hostData)
{
var data = Encoding.UTF8.GetBytes(JsonSerializer.Serialize(hostData));
var password = _authenticator.GenerateEncodedPassword();
var block = new BlockData()
{
Id = id, Type = BlockType.FAST_CONNECT
};
ConfigureCryptor(_authenticator.DecodePassword(password));
block.Data = data;
EncryptBlock(ref block);
block.Data = FastConnectUtils.GenerateFastConnectData(Id, _authenticator.GenerateChallenge(), password, block.Data.Span);
await WriteBlock(block);
block = await ReadBlock();
DecryptBlock(ref block);
var resultId = BitConverter.ToInt32(block.Data.Span);
_authenticator.ValidateChallengeResponse(block.Data.Span.Slice(4));
if (Id == 0)
{
Id = resultId;
}
else
{
if (Id != resultId)
{
throw new SharkException("FastConnect hand shake failed, id challenge failed");
}
}
Initialized = true;
return(block);
}
