Question

I am using Jetty’s ProxyServlet as a HTTP proxy.

After I start the server and add the socks proxy in firefox I can access websites through the proxy without any problems.

The problem is that when I try to access a HTTPs website through the proxy. Firefox displays a “Server not found” error and during debugging I don’t see anything happening in my Java code.

Am I missing something here to add SSL support to Jetty?

Here’s part of the code:

    Server httpProxy = new Server(8087);

    ServletHandler servletHandler = new ServletHandler();
    servletHandler.addServletWithMapping(new ServletHolder(new TunnelProxyServlet()), "/*");

    httpProxy.setHandler(servletHandler);
    try {
        httpProxy.start();
    } catch (Exception ex) {
        Logger.getLogger(HttpProxy.class.getName()).log(Level.SEVERE, null, ex);
    }

    public class TunnelProxyServlet extends ProxyServlet {
      @Override
      public void init(ServletConfig config) throws ServletException {
        super.init(config);
        System.out.println("init done !");
      }

      @Override
      public void service(ServletRequest req, ServletResponse res) throws ServletException, IOException {
        System.out.println("got a request !");
        super.service(req, res);
      } 
   }

Answer 1

You can use a “ConnectHandler”

http://grepcode.com/file/repo1.maven.org/maven2/org.eclipse.jetty/example-jetty-embedded/8.1.1.v20120215/org/eclipse/jetty/embedded/ProxyServer.java

public class ProxyServer {

    public static void main(String[] args) throws Exception {

        Server server = new Server();
        SelectChannelConnector connector = new SelectChannelConnector();
        connector.setPort(8888);
        server.addConnector(connector);

        HandlerCollection handlers = new HandlerCollection();
        server.setHandler(handlers);

        // Setup proxy servlet
        ServletContextHandler context = new ServletContextHandler(handlers, "/", ServletContextHandler.SESSIONS);
        ServletHolder proxyServlet = new ServletHolder(ProxyServlet.class);
        proxyServlet.setInitParameter("whiteList", "google.com, www.eclipse.org, localhost");
        proxyServlet.setInitParameter("blackList", "google.com/calendar/*, www.eclipse.org/committers/");
        context.addServlet(proxyServlet, "/*");

        // Setup proxy handler to handle CONNECT methods
        ConnectHandler proxy = new ConnectHandler();
        proxy.setWhite(new String[]{"mail.google.com"});
        proxy.addWhite("www.google.com");
        handlers.addHandler(proxy);

        server.start();

    }

}