SSH.NET SFTP Get a list of directories and files recursively

Question

I am using Renci.SshNet library to get a list of files and directories recursively by using SFTP. I can able to connect SFTP site but I am not sure how to get a list of director

Answer 1

I have achieved this using recursion. Created a class TransportResponse like this

 public class TransportResponse
{
    public string directoryName { get; set; }
    public string fileName { get; set; }
    public DateTime fileTimeStamp { get; set; }
    public MemoryStream fileStream { get; set; }
    public List lstTransportResponse { get; set; }
}

I create a list of TransportResponse class. If the directoryName is not null, it will contain a list of the same class which will have the the files inside that directory as a MemoryStream ( this can be changed as per your use case)

List lstResponse = new List();
using (var client = new SftpClient(connectionInfo))
  {
          try
          {
                    Console.WriteLine("Connecting to " + connectionInfo.Host + " ...");
                    client.Connect();
                    Console.WriteLine("Connected to " + connectionInfo.Host + " ...");
           }
           catch (Exception ex)
           {
                    Console.WriteLine("Could not connect to "+ connectionInfo.Host +" server. Exception Details: " + ex.Message);
           }
           if (client.IsConnected)
           {
                    var files = client.ListDirectory(transport.SourceFolder);
                    lstResponse = downloadFilesInDirectory(files, client);
                    client.Disconnect();
            }
            else
            {
                    Console.WriteLine("Could not download files from "+ transport.TransportIdentifier +" because client was not connected.");
             }
   }



private static List downloadFilesInDirectory(IEnumerable files, SftpClient client)
    {
        List lstResponse = new List();
        foreach (var file in files)
        {
            if (!file.IsDirectory)
            {
                if (file.Name != "." && file.Name != "..")
                {
                    if (!TransportDAL.checkFileExists(file.Name, file.LastWriteTime))
                    {
                        using (MemoryStream fs = new MemoryStream())
                        {
                            try
                            {
                                Console.WriteLine("Reading " + file.Name + "...");
                                client.DownloadFile(file.FullName, fs);
                                fs.Seek(0, SeekOrigin.Begin);
                                lstResponse.Add(new TransportResponse { fileName = file.Name, fileTimeStamp = file.LastWriteTime, fileStream = new MemoryStream(fs.GetBuffer()) });
                            }
                            catch(Exception ex)
                            {
                                Console.WriteLine("Error reading File. Exception Details: " + ex.Message);
                            }
                        }
                    }
                    else
                    {
                        Console.WriteLine("File was downloaded previously");
                    }
                }
            }
            else
            {
                if (file.Name != "." && file.Name != "..")
                {
                    lstResponse.Add(new TransportResponse { directoryName = file.Name,lstTransportResponse = downloadFilesInDirectory(client.ListDirectory(file.Name), client) });
                }                
            }
        }

        return lstResponse;
    }

Hope this helps. Thanks