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[])
  {
    CkSocket socket = new CkSocket();

    boolean success;
    success = socket.UnlockComponent("Anything for 30-day trial");
    if (success != true) {
        System.out.println("Failed to unlock component");
        return;
    }

    //  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;
    hostname = "192.168.1.108";
    boolean ssl;
    ssl = false;
    int maxWaitMillisec;
    maxWaitMillisec = 20000;
    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;
    receivedMsg = socket.receiveString();
    if (receivedMsg == null ) {
        System.out.println(socket.lastErrorText());
        return;
    }

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

    System.out.println(receivedMsg);
  }
}