sslexplorerconnect.java

这是linux下ssl vpn的实现程序

import com.sslexplorer.vpn.embed.EmbeddedVPNClient;
import com.sslexplorer.vpn.embed.LogonCredentialsPrompt;

import java.io.*;
import java.net.*;
//import com.maverick.ssh.*;
//import com.sshtools.net.*;

public class SSLExplorerConnect {
    public static void main(String[] args) {

        try {

            // These system properties need to be set unless you are connecting
            // to a server that have a certificate issued by a certificate authority
            System.setProperty("com.maverick.ssl.allowUntrustedCertificates", "true");
            System.setProperty("com.maverick.ssl.allowInvalidCertificates", "true");

            BufferedReader reader = new BufferedReader(
                    new InputStreamReader(System.in));

            // Enter the hostname of the SSL-Explorer gateway
            System.out.print("SSL-Explorer Hostname  (<hostname>[:<port>]): ");
            String hostname = reader.readLine();

            int idx = hostname.indexOf(':');
            int port = 443;
            if (idx > -1) {
                port = Integer.parseInt(hostname.substring(idx + 1));
                hostname = hostname.substring(0, idx);
            }

            // Enter the username of the SSL-Explorer account
            System.out.print("SSL-Explorer Username [Enter for " + System.getProperty("user.name") +
                             "]: ");
            String username = reader.readLine();

            if (username == null || username.trim().equals(""))
                username = System.getProperty("user.name");

            // Enter the users password for the SSL-Explorer
            System.out.print("SSL-Explorer Password: ");
            String password = reader.readLine();

            // Create an Embedded VPN Client instance
            EmbeddedVPNClient vpnclient = new EmbeddedVPNClient(hostname, port, username, password);
            vpnclient.connect();


            // Enter the hostname of the SSL-Explorer gateway
            System.out.print("Target Hostname (<hostname>[:<port>]): ");
            String targetHostname = reader.readLine();

            idx = hostname.indexOf(':');
            int targetPort = 443;
            if (idx > -1) {
                targetPort = Integer.parseInt(hostname.substring(idx + 1));
                targetHostname = hostname.substring(0, idx);
            }
            
            // Create a tunnel to any hostname/port within the network perimeter
            Socket socket = vpnclient.createTunnel(targetHostname, targetPort);
            InputStream in = socket.getInputStream();
            OutputStream out = socket.getOutputStream();
            
            //
            System.out.println("You now have I/O streams connected to your " +
                    "target host / port, what you do with them is up to you!");

            // use the Socket for the tunnelled application such as J2SSH Maverick
            /*SshConnector con = SshConnector.getInstance();

            SshClient ssh = con.connect(new SocketWrapper(socket),
                        "foobar");

            com.maverick.ssh.PasswordAuthentication pwd = new com.maverick.ssh.PasswordAuthentication();
            pwd.setPassword("xxxxx");

            ssh.authenticate(pwd);*/

            // When finished and you don't require any further tunnels, disconnect
            vpnclient.disconnect();
        }
        catch(Exception ex)
        {
            ex.printStackTrace();
        }

    }
}