(Java) Socket/SSL/TLS through SOCKS5 / SOCKS4 Proxy

Demonstrates how to use the Chilkat Socket/SSL/TLS component/library with a SOCKS5 or SOCKS4 proxy server.

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import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

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

    CkSocket socket = new CkSocket();

    // To use a SOCKS4 or SOCKS5 proxy, simply set the following
    // properties prior to calling Connect.  The connection may be SSL/TLS or 
    // non-secure - both will work with a SOCKS proxy.
    // The SOCKS hostname may be a domain name or 
    // IP address:
    socket.put_SocksHostname("www.mysocksproxyserver.com");
    socket.put_SocksPort(1080);
    socket.put_SocksUsername("myProxyLogin");
    socket.put_SocksPassword("myProxyPassword");
    // Set the SOCKS version to 4 or 5 based on the version
    // of the SOCKS proxy server:
    socket.put_SocksVersion(5);
    // Note: SOCKS4 servers only support usernames without passwords.
    // SOCKS5 servers support full login/password authentication.

    // Connect to port 5555 of 192.168.1.108.
    // hostname may be a domain name or IP address.
    String hostname = "192.168.1.108";
    boolean ssl = false;
    int maxWaitMillisec = 20000;
    boolean success = socket.Connect(hostname,5555,ssl,maxWaitMillisec);
    if (success != true) {
        System.out.println(socket.lastErrorText());
        return;
        }

    // Set maximum timeouts for reading an writing (in millisec)
    socket.put_MaxReadIdleMs(10000);
    socket.put_MaxSendIdleMs(10000);

    // The server (in this example) is going to send a "Hello World!" 
    // message.  Read it:
    String receivedMsg = socket.receiveString();
    if (socket.get_LastMethodSuccess() != true) {
        System.out.println(socket.lastErrorText());
        return;
        }

    // Close the connection with the server
    // Wait a max of 20 seconds (20000 millsec)
    success = socket.Close(20000);

    System.out.println(receivedMsg);
  }
}