Pascal (Lazarus/Delphi)

FTP Upload / Download to a BinData Object

Demonstrates how to FTP upload the contents of a BinData object, and FTP downloads to the a BinData object. 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,
  Chilkat.BinData;

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

procedure RunDemo;
var
  success: Boolean;
  ftp: TFtp2;
  bdA: TBinData;
  remoteFilename: string;
  bdB: TBinData;

begin
  success := False;

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

  ftp := TFtp2.Create;

  ftp.Hostname := 'www.my-ftp-server.com';
  ftp.Username := 'mFtpLogin';
  ftp.Password := 'myFtpPassword';

  //  Connect to the FTP server.
  success := ftp.ConnectOnly();
  if (success <> True) then
    begin
      WriteLn(ftp.LastErrorText);
      Exit;
    end;

  //  Authenticate with the FTP server.
  success := ftp.LoginAfterConnectOnly();
  if (success <> True) then
    begin
      WriteLn(ftp.LastErrorText);
      Exit;
    end;

  bdA := TBinData.Create;
  bdA.LoadFile('qa_data/jpg/penguins.jpg');

  //  Upload the contents of bdA to the FTP server.
  remoteFilename := 'penguins.jpg';
  success := ftp.PutFileBd(bdA,remoteFilename);
  if (success <> True) then
    begin
      WriteLn(ftp.LastErrorText);
      Exit;
    end;

  //  Download...
  bdB := TBinData.Create;
  success := ftp.GetFileBd(remoteFilename,bdB);
  if (success <> True) then
    begin
      WriteLn(ftp.LastErrorText);
      Exit;
    end;

  //  Verify that bdA and bdB have the exact same contents.
  WriteLn('size of bdA: ' + bdA.NumBytes);
  if (bdA.ContentsEqual(bdB) = True) then
    begin
      WriteLn('Contents are equal. Success.');
    end
  else
    begin
      WriteLn('Contents are NOT equal.  Failed.');
    end;

  ftp.Disconnect();


  ftp.Free;
  bdA.Free;
  bdB.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.