Download file to browser from SFTP server in ASP.NET using SSH.NET

Question

With SSH.NET, I am trying to trigger a file to be downloaded by the browser instead of directly writing it to the local file storage.

using(var saveFile = File.OpenWrite(@"Downloads")) {
  result = client.BeginDownloadFile(remotePath + fileName, saveFile) as SftpUploadAsyncResult;

  client.EndUploadFile(result);
}

The above code fails as my the application pool identity doesn't have permission to write files and I cannot give permission as I don't have Admin privileges to my computer.

So better option would be to trigger the download through browser which was working earlier with FtpWebRequest.

But my current task is to convert the FTP download to SFTP download.

Can someone suggest the best way to trigger browser download?

Martin Prikryl · Accepted Answer · 2021-08-09 06:02:06Z

1

Download the file to HttpResponse.OutputStream:

HttpResponse response = HttpContext.Current.Response;

response.AddHeader("Content-Disposition", "attachment;filename=" + fileName);

client.DownloadFile(remotePath + fileName, response.OutputStream);

edited Aug 9, 2021 at 6:02

answered Aug 8, 2021 at 11:51

Martin Prikryl

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