(Delphi ActiveX) SCP Download from a Specific Directory

Demonstrates how to download a file using the SCP protocol (Secure Copy Protocol over SSH), from a specific remote directory located on the SSH server. The remote directory can be a path relative to the HOME directory of the SSH user account, or an absolute path on the remote filesystem. Obviously, in both cases the SSH user account must have permission to open and read the file in the specified directory.

Chilkat for Delphi Downloads Chilkat ActiveX DLL for Delphi Chilkat non-ActiveX DLL for Delphi * The examples here use the ActiveX DLL.

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Chilkat_TLB;

...

procedure TForm1.Button1Click(Sender: TObject);
var
ssh: TChilkatSsh;
hostname: WideString;
port: Integer;
success: Integer;
scp: TChilkatScp;
remotePath: WideString;
localPath: WideString;

begin
// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

ssh := TChilkatSsh.Create(Self);

// Hostname may be an IP address or hostname:
hostname := 'www.some-ssh-server.com';
port := 22;

// Connect to an SSH server:
success := ssh.Connect(hostname,port);
if (success <> 1) then
  begin
    Memo1.Lines.Add(ssh.LastErrorText);
    Exit;
  end;

// Wait a max of 5 seconds when reading responses..
ssh.IdleTimeoutMs := 5000;

// Authenticate using login/password:
success := ssh.AuthenticatePw('myLogin','myPassword');
if (success <> 1) then
  begin
    Memo1.Lines.Add(ssh.LastErrorText);
    Exit;
  end;

// Once the SSH object is connected and authenticated, we use it
// in our SCP object.
scp := TChilkatScp.Create(Self);

success := scp.UseSsh(ssh.ControlInterface);
if (success <> 1) then
  begin
    Memo1.Lines.Add(scp.LastErrorText);
    Exit;
  end;

// This downloads a file from the "testApp/logs/" subdirectory (relative to the SSH user account's HOME directory).  
// For example, if the HOME directory is /Users/chilkat, then the following downloads
// /Users/chilkat/testApp/logs/test1.log
remotePath := 'testApp/logs/test1.log';
localPath := 'c:/testApp/logs/test1.log';
success := scp.DownloadFile(remotePath,localPath);
if (success <> 1) then
  begin
    Memo1.Lines.Add(scp.LastErrorText);
    Exit;
  end;

// The following call to DownloadFile specifies an absolute file path on the SSH server:
remotePath := '/Users/chilkat/Documents/gecko.jpg';
localPath := 'c:/temp/images/gecko.jpg';
success := scp.DownloadFile(remotePath,localPath);
if (success <> 1) then
  begin
    Memo1.Lines.Add(scp.LastErrorText);
    Exit;
  end;

Memo1.Lines.Add('SCP download file success.');

// Disconnect
ssh.Disconnect();
end;