Add property in FtpClient class to retrieve the selected SslProtocol

[JosHuybrighs]

FTP OS: All

FTP Server: All

Computer OS: All

FluentFTP Version: Future release

Framework: All

Could it be possible for one of the next updates of FluentFTP to have the possibility to retrieve the selected/negotiated Ssl/Tls version?

I did it myself by adding the FluentFtp source code project to my solution. It is quite easy. The following files need to be expanded with a simple property:

In FtpClientProperties.cs

/// <summary>
/// The negotiated SSL/TLS version
/// </summary>
public SslProtocols SelectedSslProtocol
{
	get { return m_stream != null ? m_stream.SelectedSslProtocol : SslProtocols.None; }
}

In FtpSocketStream.cs

/// <summary>
/// The negotiated SSL/TLS version
/// </summary>
public SslProtocols SelectedSslProtocol
{
	get { return IsEncrypted ? m_sslStream.SslProtocol : SslProtocols.None; }
}

I would like to have this to inform the user about which protocol has been negotiated.

[FanDjango]

I would also use this.

[robinrodricks]

Good idea!

[robinrodricks]

39.4.0

• New: Add SslProtocolActive property to retrieve the negotiated SSL/TLS protocol version

[marcwaz]

I'm looking for the property SslProtocolActive in 52.0.0. Not here anymore ? How to retrieve the selected/negotiated Ssl/Tls version?

[FanDjango]

@marcwaz You are right. It disappeared by mistake after df7ac2c.

[FanDjango]

I have no explanation as to why it was removed. I have brought it back and committed this to the current master. It will be back in the next release.

[marcwaz]

good. it should be tested, to ensure that it works.

[FanDjango]

@marcwaz Oh, thanks for offering to do that.

[marcwaz]

Could you just send me a sample of code in order to show me how to do a call of SslProtoclActive property after a ".connect" on a new FtpClient ?

[FanDjango]

				client.Connect();
				Console.WriteLine("Selected SSL Version/Protocol " + client.SslProtocolActive);

Result:

Selected SSL Version/Protocol Tls12

using the current master on GitHub.

[FanDjango]

Actually more even:

				client.Connect();
				Console.WriteLine("Selected SSL Version/Protocol " + client.SslProtocolActive);
				Console.WriteLine("Selected SSL Ciphersuite " + client.SslCipherSuiteActive);

Result:

Selected SSL Version/Protocol Tls12
Selected SSL Ciphersuite Tls12 (Aes256, TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384, 44550, 255)

using the current master on GitHub.

[marcwaz]

I don't know when the next version of FluentFTP (v52.1?) will be released.

Is it possible to push a beta nuget ?

I need the FluentFTP .net472 framework dll (compile in release mode) in order to do the tests.

I don't have the necessary environnement in order to compile the master FluentFTP sources.

thanks

[FanDjango]

Making a new (interim) release is solely at @robinrodricks discretion.