public async Task Connect(string host, int port)
{
_tcpClient = new TcpClient();
await _tcpClient.ConnectAsync(host, port).ConfigureAwait(false);
StartTlsResult sessionInitialized = await TryInitializeSession(_tcpClient.GetStream()).ConfigureAwait(false);
if (!sessionInitialized.Success)
{
throw new Exception("Failed to initialize session.");
}
TlsClientProtocol clientProtocol = new TlsClientProtocol(_tcpClient.GetStream(), SecureRandom.GetInstance("SHA256PRNG"));
clientProtocol.Connect(new BasicTlsClient());
}
private async Task <TlsConnectionResult> DoConnect(string host, int port, TlsVersion version, List <CipherSuite> cipherSuites)
{
_tcpClient = new TcpClient
{
NoDelay = true,
SendTimeout = _timeOut.Milliseconds,
ReceiveTimeout = _timeOut.Milliseconds,
};
_log.Debug($"Starting TCP connection to {host ?? "<null>"}:{port}");
await _tcpClient.ConnectAsync(host, port).ConfigureAwait(false);
_log.Debug($"Successfully started TCP connection to {host ?? "<null>"}:{port}");
_log.Debug("Initializing session");
StartTlsResult sessionInitialized = await TryInitializeSession(_tcpClient.GetStream()).ConfigureAwait(false);
_log.Debug("Successfully initialized session");
if (!sessionInitialized.Success)
{
_log.Debug("Failed to initialize session");
return(new TlsConnectionResult(Error.SESSION_INITIALIZATION_FAILED, sessionInitialized.Error, sessionInitialized.SmtpSession));
}
TestTlsClientProtocol clientProtocol = new TestTlsClientProtocol(_tcpClient.GetStream());
TestTlsClient testSuiteTlsClient = new TestTlsClient(version, cipherSuites);
_log.Debug("Starting TLS session");
TlsConnectionResult connectionResult = clientProtocol.ConnectWithResults(testSuiteTlsClient);
_log.Debug("Successfully started TLS session");
return(connectionResult);
}