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(Mono C#) FTP Connect, Examine Server Certificate, and then AuthenticateDemonstrates how to connect to an FTP server, examine the server's SSL/TLS certificate, and then, if it meets the application's security requirements, proceed to authenticate.
// This example assumes Chilkat Ftp2 to have been previously unlocked. // See Unlock Ftp2 for sample code. Chilkat.Ftp2 ftp = new Chilkat.Ftp2(); ftp.Hostname = "www.authtls-ftps-server.com"; ftp.Username = "FTP_LOGIN"; ftp.Password = "FTP_PASSWORD"; ftp.AuthTls = true; ftp.Port = 21; // Connect to the FTP server using explicit TLS (AUTH TLS). bool success = ftp.ConnectOnly(); if (success != true) { Debug.WriteLine(ftp.LastErrorText); return; } // Get the FTP server's certificate. Chilkat.Cert serverCert = ftp.GetSslServerCert(); if (ftp.LastMethodSuccess != true) { Debug.WriteLine(ftp.LastErrorText); return; } // Now that we have the certificate, we can check it in any way we desire. // (See the online reference documentation for the certificate object's methods // and properties)... // Assuming the certificate is OK, proceed to authenticate with the FTP server. success = ftp.LoginAfterConnectOnly(); if (success != true) { Debug.WriteLine(ftp.LastErrorText); return; } // // Proceed with uploading/download files, etc... // ftp.Disconnect(); Debug.WriteLine("Success."); |
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