Pascal (Lazarus/Delphi)

SOCKS4 and SOCKS5 Proxy for FTP

See more FTP Examples

Demonstrates how to connect to an FTP server through a SOCKS4 or SOCKS5 proxy. Both SSL/TLS and non-secure FTP communications may use SOCKS4 and SOCKS5 proxies. 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;
  localFilename: string;
  remoteFilename: string;

begin
  success := False;

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

  ftp := TFtp2.Create;

  ftp.Hostname := 'ftp.example.com';
  ftp.Username := 'login';
  ftp.Password := 'password';

  //  To use a SOCKS4 or SOCKS5 proxy, simply set the following
  //  properties prior to connecting:
  //  The SOCKS hostname may be a domain name or 
  //  IP address:
  ftp.SocksHostname := 'www.mysocksproxyserver.com';
  ftp.SocksPort := 1080;
  ftp.SocksUsername := 'myProxyLogin';
  ftp.SocksPassword := 'myProxyPassword';
  //  Set the SOCKS version to 4 or 5 based on the version
  //  of the SOCKS proxy server:
  ftp.SocksVersion := 5;
  //  Note: SOCKS4 servers only support usernames without passwords.
  //  SOCKS5 servers support full login/password authentication.

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

  //  Change to the remote directory where the file is located.
  //  This step is only necessary if the file is not in the root directory
  //  for the FTP account.
  success := ftp.ChangeRemoteDir('junk');
  if (success <> True) then
    begin
      WriteLn(ftp.LastErrorText);
      Exit;
    end;

  //  Download a file.
  localFilename := 'c:/temp/hamlet.xml';
  remoteFilename := 'hamlet.xml';

  success := ftp.GetFile(remoteFilename,localFilename);
  if (success <> True) then
    begin
      WriteLn(ftp.LastErrorText);
      Exit;
    end;

  success := ftp.Disconnect();

  WriteLn('File Downloaded!');


  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.