Stream interface to a file on SFTP server in C# SSH.NET

Question

I am connecting to an SFTP server using SSH.NET and trying to read an image into a stream for displaying it in my web page.

SftpClient client = connectToServer(IP,user,pwd); 
string remotePath = client.WorkingDirectory.ToString() + dto.Directory + "/"; 
FileStream fs = new FileStream(remotePath + dto.FileName,FileMode.Open); 
Stream strm = fs;

The above code throws an invalid characters exception. I am not sure if the reason for it is because of the filename on the server i.e. all these files are stored with * delimiter i.e. Text1*Text2*Text3.00.png.

If it is, is there any other way to read the stream?

I have also tried to read from HttpResponse.OutputStream but that throws a read/seek invalid exception.

HttpResponse response = HttpContext.Current.Response;
Stream strm = response.OutputStream;

Are there any other ways to read such image files?

---

This is the working code code for the same functionality using FtpWebRequest.

var request = (FtpWebRequest)WebRequest.Create(serverUri);
request.UsePassive = true;
request.UseBinary = true;
request.Credentials =// 
request.Method = WebRequestMethods.Ftp.DownloadFile;
response = (FtpWebResponse)await request.GetResponseAsync();
Stream responseStream = response.GetResponseStream();

I am changing it to SFTP using SSH.NET.

Is there a way to get the same output as GetResponseStream() with SSH.NET?

Answer 1

If you need to obtain Stream API to a file on SFTP server, use SSH.NET SftpClient.Open[Read]:

Stream fs = client.OpenRead(remotePath);