Dart

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. Dart

import 'package:chilkat/chilkat.dart';

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

  final ftp = CkFtp2();

  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.
  try {
    ftp.connect();
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  // 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.
  try {
    ftp.changeRemoteDir('junk');
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

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

  try {
    ftp.getFile(remoteFilename, localFilename);
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  ftp.disconnect();

  print('File Downloaded!');
}