SOCKS5 Proxy using SSLSocket

I have a client/server application that remotely connects to a server via Java's SSLSocket.

I'm trying to implement an optional mode that enables connections via an authenticated SOCKS v5 proxy.

I tried using the relevant tutorial but it doesn't mention anything about SSL specifically.

I've tried setting the system-wide properties ("socksProxyHost" and "socksProxyPort") but it doesn't seem to do anything.

My next approach was to use factory method in SSLSocketFactory:

            String proxyHost = Config.prefs.get("PROXY_NAME", "localhost");
            int proxyPort = Config.prefs.getInt("PROXY_PORT", 1080);
            InetSocketAddress proxyAddr = new InetSocketAddress(proxyHost, proxyPort);
            Socket underlying = new SSLSocket(new Proxy(Proxy.Type.SOCKS, proxyAddr));
            underlying.connect(new InetSocketAddress(getHost(), getPort()));
            socket = (SSLSocket) factory.createSocket(
                    underlying,
                    getHost(),
                    getPort(),
                    true);

But the problem with this approach is that the createSocket method requires the und开发者_运维知识库erlying socket to be already connected, and my server won't accept non SSL connections.

What's the best way to connect to my remote server using SOCKS? Also, I have next to no idea how to supply a username/password for authenticated SOCKS in this system.

Thanks!

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        String proxyHost = Config.prefs.get("PROXY_NAME", "localhost");
        int proxyPort = Config.prefs.getInt("PROXY_PORT", 1080);
        InetSocketAddress proxyAddr = new InetSocketAddress(proxyHost, proxyPort);
        Socket underlying = new Socket(new Proxy(Proxy.Type.SOCKS, proxyAddr));
        underlying.connect(new InetSocketAddress(getHost(), getPort()));
        socket = (SSLSocket) factory.createSocket(
                underlying,
                proxyHost,
                proxyPort,
                true);