Delphi ActiveX

Get an FTP Listing Entry's Owner

Demonstrates the Chilkat Ftp2.GetOwner method, which returns the owner name or identifier of a cached directory-listing entry. The only argument is a zero-based index. The value is empty when a valid entry has no owner metadata.

Background: Owner information appears in Unix-style listings and is useful for auditing or for deciding whether an operation is likely to be permitted. It is not universally available — some servers and listing formats omit it entirely, and it may be a numeric ID rather than a name — so treat an empty result as "not reported" rather than an error.

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var
success: Integer;
ftp: TChilkatFtp2;
n: Integer;
i: Integer;
name: WideString;
owner: WideString;

begin
success := 0;

//  Demonstrates the Ftp2.GetOwner method, which returns the owner name or identifier of a cached
//  directory-listing entry.  The only argument is a zero-based index.

ftp := TChilkatFtp2.Create(Self);

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 = 0) then
  begin
    Memo1.Lines.Add(ftp.LastErrorText);
    Exit;
  end;

success := ftp.ChangeRemoteDir('public_html');
if (success = 0) then
  begin
    Memo1.Lines.Add(ftp.LastErrorText);
    Exit;
  end;

//  GetDirCount retrieves the directory listing on the first call and returns the number of
//  entries.  A negative return indicates failure.
n := ftp.GetDirCount();
if (n < 0) then
  begin
    Memo1.Lines.Add(ftp.LastErrorText);
    Exit;
  end;

for i := 0 to n - 1 do
  begin
    name := ftp.GetFilename(i);

    //  The owner is empty when a valid entry has no owner metadata.
    owner := ftp.GetOwner(i);
    Memo1.Lines.Add(owner + '  ' + name);
  end;

success := ftp.Disconnect();
if (success = 0) then
  begin
    Memo1.Lines.Add(ftp.LastErrorText);
    Exit;
  end;