C#•2y ago

❔ Fluent FTP Problem

Currently writing a little C# program to connect to FTP server and download some files. Connecting to the server is no problem but as soon as i try to retrieve folders, files etc. I get a error

Code: 450 Message: TLS session of data connection has not resumed or the session does not match the control connection

My code is as follows:

 using var conn = new FtpClient("host", "login", "pw", port);
            conn.Config.EncryptionMode = FtpEncryptionMode.Explicit;
            conn.Config.ValidateAnyCertificate = true;
            conn.Config.SslProtocols = SslProtocols.Tls12;
            conn.Connect();

            foreach (var item in conn.GetListing("/", FtpListOption.Recursive))
            {
                switch (item.Type)
                {

                    case FtpObjectType.Directory:

                        Console.WriteLine("Directory!  " + item.FullName);
                        Console.WriteLine("Modified date:  " + conn.GetModifiedTime(item.FullName));

                        break;

                    case FtpObjectType.File:

                        Console.WriteLine("File!  " + item.FullName);
                        Console.WriteLine("File size:  " + conn.GetFileSize(item.FullName));
                        Console.WriteLine("Modified date:  " + conn.GetModifiedTime(item.FullName));
                        Console.WriteLine("Chmod:  " + conn.GetChmod(item.FullName));

                        break;

                    case FtpObjectType.Link:
                        break;
                }
            }

 using var conn = new FtpClient("host", "login", "pw", port);
            conn.Config.EncryptionMode = FtpEncryptionMode.Explicit;
            conn.Config.ValidateAnyCertificate = true;
            conn.Config.SslProtocols = SslProtocols.Tls12;
            conn.Connect();

            foreach (var item in conn.GetListing("/", FtpListOption.Recursive))
            {
                switch (item.Type)
                {

                    case FtpObjectType.Directory:

                        Console.WriteLine("Directory!  " + item.FullName);
                        Console.WriteLine("Modified date:  " + conn.GetModifiedTime(item.FullName));

                        break;

                    case FtpObjectType.File:

                        Console.WriteLine("File!  " + item.FullName);
                        Console.WriteLine("File size:  " + conn.GetFileSize(item.FullName));
                        Console.WriteLine("Modified date:  " + conn.GetModifiedTime(item.FullName));
                        Console.WriteLine("Chmod:  " + conn.GetChmod(item.FullName));

                        break;

                    case FtpObjectType.Link:
                        break;
                }
            }

Any tips or suggestions?

1 Reply

Accord•2y ago

Looks like nothing has happened here. I will mark this as stale and this post will be archived until there is new activity.

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❔ Fluent FTP Problem