package de.spieleck.servlets;

import java.net.*;
import java.io.*;
import javax.servlet.http.*;
import javax.servlet.*;

public class Fetchlet
    extends HttpServlet
{
    public Fetchlet() { }
    
    public void init()
        throws ServletException
    {
        String h = getInitParameter("safe");
    }

    protected void doGet(HttpServletRequest req,
                            HttpServletResponse res)
        throws ServletException, IOException
    {
        URL url = new URL(req.getQueryString());
        HttpURLConnection huc = (HttpURLConnection) url.openConnection();
        huc.setFollowRedirects(true);
        try
        {
            huc.setRequestMethod("GET");
            huc.setDoInput(true);
        }
        catch ( ProtocolException ignore ) { }
        huc.connect();
        // is caught by INA firewall res.setContentType(huc.getContentType());
        // res.setContentEncoding(huc.getContentEncoding());
        res.setContentType("text/plain");
        BufferedInputStream in = new BufferedInputStream(huc.getInputStream());
        // OutputStream out = new java.util.zip.GZIPOutputStream(
        //                                                res.getOutputStream());
        OutputStream out = res.getOutputStream();
        int b;
        int i = 0;
        while ( ( b = in.read() ) != -1 )
        {
            out.write(b);
            // Give the network s.th. to do!
            if ( ( ++i & 0xFFF ) == 0 )
                out.flush();
        }
        out.close();
        in.close();
        huc.disconnect();
    }
}