Delphi DLL

FTP Upload / Download to StringBuilder

Demonstrate how to upload from a Chilkat StringBuilder object, and download into a StringBuilder object. Delphi DLL

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Ftp2, StringBuilder;

...

procedure TForm1.Button1Click(Sender: TObject);
var
success: Boolean;
ftp: HCkFtp2;
sbA: HCkStringBuilder;
bIncludeBOM: Boolean;
remoteFilename: PWideChar;
sbB: HCkStringBuilder;
bCaseSensitive: Boolean;

begin
success := False;

// This example assumes Chilkat Ftp2 to have been previously unlocked.
// See Unlock Ftp2 for sample code.

ftp := CkFtp2_Create();

CkFtp2_putHostname(ftp,'www.my-ftp-server.com');
CkFtp2_putUsername(ftp,'mFtpLogin');
CkFtp2_putPassword(ftp,'myFtpPassword');

// Connect to the FTP server.
success := CkFtp2_ConnectOnly(ftp);
if (success <> True) then
  begin
    Memo1.Lines.Add(CkFtp2__lastErrorText(ftp));
    Exit;
  end;

// Authenticate with the FTP server.
success := CkFtp2_LoginAfterConnectOnly(ftp);
if (success <> True) then
  begin
    Memo1.Lines.Add(CkFtp2__lastErrorText(ftp));
    Exit;
  end;

sbA := CkStringBuilder_Create();
CkStringBuilder_LoadFile(sbA,'qa_data/hamlet.xml','utf-8');

// Upload the contents of sbA to the FTP server.
bIncludeBOM := False;
remoteFilename := 'hamletFromSb.xml';
success := CkFtp2_PutFileSb(ftp,sbA,'utf-8',bIncludeBOM,remoteFilename);
if (success <> True) then
  begin
    Memo1.Lines.Add(CkFtp2__lastErrorText(ftp));
    Exit;
  end;

// Download...
sbB := CkStringBuilder_Create();
success := CkFtp2_GetFileSb(ftp,remoteFilename,'utf-8',sbB);
if (success <> True) then
  begin
    Memo1.Lines.Add(CkFtp2__lastErrorText(ftp));
    Exit;
  end;

// Verify that sbA and sbB have the exact same contents.
Memo1.Lines.Add('size of sbA: ' + IntToStr(CkStringBuilder_getLength(sbA)));
bCaseSensitive := True;
if (CkStringBuilder_ContentsEqualSb(sbA,sbB,bCaseSensitive) = True) then
  begin
    Memo1.Lines.Add('Contents are equal. Success.');
  end
else
  begin
    Memo1.Lines.Add('Contents are NOT equal.  Failed.');
  end;

CkFtp2_Disconnect(ftp);

CkFtp2_Dispose(ftp);
CkStringBuilder_Dispose(sbA);
CkStringBuilder_Dispose(sbB);

end;