SFTP Upload from Local Filesystem

Demonstrates how to upload a file to an SSH server. There are no limitations on file size, and the file is streamed directly from the local filesystem.

Download Chilkat 32-bit SSH / SFTP ActiveX (.msi)

Download All 32-bit Chilkat ActiveX Components (.zip)

Download All 64-bit Chilkat ActiveX Components (.zip)

uses
    Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
    Dialogs, StdCtrls,
    CHILKATSSHLib_TLB,
    OleCtrls;

...

procedure TForm1.Button1Click(Sender: TObject);
var
sftp: TChilkatSFtp;
success: Integer;
port: Integer;
hostname: String;
handle: String;

begin
//  Important: It is helpful to send the contents of the
//  sftp.LastErrorText property when requesting support.

sftp := TChilkatSFtp.Create(Self);

//  Any string automatically begins a fully-functional 30-day trial.
success := sftp.UnlockComponent('Anything for 30-day trial');
if (success <> 1) then
  begin
    ShowMessage(sftp.LastErrorText);
    Exit;
  end;

//  Set some timeouts, in milliseconds:
sftp.ConnectTimeoutMs := 5000;
sftp.IdleTimeoutMs := 10000;

//  Connect to the SSH server.
//  The standard SSH port = 22
//  The hostname may be a hostname or IP address.

hostname := 'www.my-ssh-server.com';
port := 22;
success := sftp.Connect(hostname,port);
if (success <> 1) then
  begin
    ShowMessage(sftp.LastErrorText);
    Exit;
  end;

//  Authenticate with the SSH server.  Chilkat SFTP supports
//  both password-based authenication as well as public-key
//  authentication.  This example uses password authenication.
success := sftp.AuthenticatePw('myLogin','myPassword');
if (success <> 1) then
  begin
    ShowMessage(sftp.LastErrorText);
    Exit;
  end;

//  After authenticating, the SFTP subsystem must be initialized:
success := sftp.InitializeSftp();
if (success <> 1) then
  begin
    ShowMessage(sftp.LastErrorText);
    Exit;
  end;

//  Open a file for writing on the SSH server.
//  If the file already exists, it is overwritten.
//  (Specify "createNew" instead of "createTruncate" to
//  prevent overwriting existing files.)

handle := sftp.OpenFile('hamlet.xml','writeOnly','createTruncate');
if (Length(handle) = 0 ) then
  begin
    ShowMessage(sftp.LastErrorText);
    Exit;
  end;

//  Upload from the local file to the SSH server.
success := sftp.UploadFile(handle,'c:/temp/hamlet.xml');
if (success <> 1) then
  begin
    ShowMessage(sftp.LastErrorText);
    Exit;
  end;

//  Close the file.
success := sftp.CloseHandle(handle);
if (success <> 1) then
  begin
    ShowMessage(sftp.LastErrorText);
    Exit;
  end;

ShowMessage('Success.');
end;