Pascal (Lazarus/Delphi)

Get FTP Filenames as XML (NLST)

Demonstrates the Chilkat Ftp2.NlstXml method, which sends NLST and returns the matching names in XML form. The only argument is appended literally; an empty string sends a bare NLST and a value like *.txt sends NLST *.txt.

Tip: Code to parse the returned XML can be generated at Chilkat Tools.

Background: NLST is the lightweight listing command: it returns only names, with none of the sizes, dates, or type information that LIST provides. That makes it fast and simple when a bare list of filenames is all you need — for example to drive a batch of downloads. Wrapping the result as XML gives you a clean, uniform structure to iterate regardless of how the server formats the raw NLST reply.

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Pascal (Lazarus/Delphi)

program ChilkatDemo;

// Demonstrates using the Chilkat Pascal wrapper via the C bridge DLL.
// Builds as a console application under Lazarus (FPC) or Delphi.

{$IFDEF FPC}
  {$MODE DELPHI}
{$ENDIF}
{$APPTYPE CONSOLE}

uses
  {$IFDEF UNIX}
  cthreads,
  {$ENDIF}
  SysUtils,
  CkDllLoader,
  Chilkat.Ftp2;

// ---------------------------------------------------------------------------

procedure RunDemo;
var
  success: Boolean;
  ftp: TFtp2;
  xml: string;

begin
  success := False;

  //  Demonstrates the Ftp2.NlstXml method, which sends NLST and returns the matching names in XML
  //  form.  The only argument is appended literally; an empty string sends a bare NLST.

  ftp := TFtp2.Create;

  ftp.Hostname := 'ftp.example.com';
  ftp.Username := 'myFtpLogin';

  //  Normally you would not hard-code the password in source.  You should instead obtain it
  //  from an interactive prompt, environment variable, or a secrets vault.
  ftp.Password := 'myPassword';

  success := ftp.Connect();
  if (success = False) then
    begin
      WriteLn(ftp.LastErrorText);
      Exit;
    end;

  success := ftp.ChangeRemoteDir('public_html');
  if (success = False) then
    begin
      WriteLn(ftp.LastErrorText);
      Exit;
    end;

  //  NLST returns names only (no sizes, dates, or types).  "*.txt" sends NLST *.txt.
  xml := ftp.NlstXml('*.txt');
  if (ftp.LastMethodSuccess = False) then
    begin
      WriteLn(ftp.LastErrorText);
      Exit;
    end;
  WriteLn(xml);

  success := ftp.Disconnect();
  if (success = False) then
    begin
      WriteLn(ftp.LastErrorText);
      Exit;
    end;


  ftp.Free;

end;

// ---------------------------------------------------------------------------

begin

  try
    RunDemo;
  except
    on E: Exception do
      WriteLn('Unhandled exception: ', E.ClassName, ': ', E.Message);
  end;

  WriteLn;
  {$IFDEF MSWINDOWS}
  WriteLn('Press Enter to exit...');
  ReadLn;
  {$ENDIF}
end.