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Hey guys:

We have an app that is using TScSFTPClient and when we download the file, the resulting file has 0 KB.

Using other FTP clients, like Filezilla, we can donwload the files correctly.

Any idea where/how to investigate this issue?

We are using version 6.2.3 04-Feb-14, but also tried with latest release.

Regards

--
Jackson Gomes / Flow Software

I can not reproduce the problem. Please make sure you use SFTP server for file downloading, not FTP. The SFTP protocol is not derived from the FTP protocol, and it is an independent protocol.

THanks for the reply.

I tested with other SFTP servers and it is working fine. It seems a failure on this particular SFTP server.

Can you please give me any hint on where I should start investigating?

I've tested downloading files from this particular server using Filezilla (SFTP) and it works fine. When I use TScSFTPClient it does not work, ie, the resulting files have 0 KB.

Should I open a support request?

Thanks

--
Jackson Gomes / Flow Software

Hi again:

I just tried the same SFTP server with another set of components (Eldos SecureBlackbox.VCL) and it works fine with the "problematic" SFTP server.

I tried debugging your code and the method below

procedure TScSFTPClient.DownloadFile(const Source, Destination: string; Overwrite: Boolean);
...
FCopyingRemoteFile := True;
try
...
...
Handle := OpenFile(Source, [foRead], nil);
finally
...
end;
...

the Handle result is always (0,0,0,0) on the problematic server. When I test it on other servers, the Handle has values different than 0s (not sure if it has any meanings for you).

Any thoughts?

Thanks

Jackson / Flow Software

Unfortunately, I still cannot reproduce the problem.
Can you provide access to your SFTP server to investigate the problem?

To investigate the problem, try opening a remote file by the OpenFile method with another Modes parameter, like [foRead, foWrite] or [foAppend, foCreate].

I'm talking with my customer about it. PLease send me a private message so I can provide you the details

I have answered you by e-mail.