SOCKS4 and SOCKS5 Proxy for FTP

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.

Download 32-bit Chilkat FTP2 ActiveX (.msi)

Download All 32-bit Chilkat ActiveX Components (.zip)

Download All 64-bit Chilkat ActiveX Components (.zip)

uses
    Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
    Dialogs, StdCtrls,
    CHILKATFTP2Lib_TLB,
    OleCtrls;

...

procedure TForm1.Button1Click(Sender: TObject);
var
ftp: TChilkatFtp2;
success: Integer;
localFilename: String;
remoteFilename: String;

begin
ftp := TChilkatFtp2.Create(Self);

//  Any string unlocks the component for the 1st 30-days.
success := ftp.UnlockComponent('Anything for 30-day trial');
if (success <> 1) then
  begin
    ShowMessage(ftp.LastErrorText);
    Exit;
  end;

ftp.Hostname := 'ftp.example-code.com';
ftp.Username := 'myLogin';
ftp.Password := 'myPassword';

//  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 <> 1) then
  begin
    ShowMessage(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 <> 1) then
  begin
    ShowMessage(ftp.LastErrorText);
    Exit;
  end;

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

success := ftp.GetFile(remoteFilename,localFilename);
if (success <> 1) then
  begin
    ShowMessage(ftp.LastErrorText);
    Exit;
  end;

ftp.Disconnect();

ShowMessage('File Downloaded!');
end;