BinText.java

package eu.byjean.bintext;

import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;

import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.google.appengine.repackaged.com.google.common.util.Base64;

@SuppressWarnings("serial")
public class BintextServlet extends HttpServlet {
  public void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException {
    resp.setContentType("text/plain");
    resp.getWriter().println("Hello, world");
  }
  public void doPost(HttpServletRequest req, HttpServletResponse resp) throws IOException {
    resp.setContentType("text/plain");
   
    try {
      URL url = new URL(req.getParameter("url"));      
      HttpURLConnection  co = (HttpURLConnection)url.openConnection();
      co.setInstanceFollowRedirects(true);
      co.setConnectTimeout(0);
      co.setReadTimeout(0);
      InputStream is = co.getInputStream();
      byte[] buffer = new byte[10240];
      
      while(is.read(buffer)>0){
        resp.getWriter().print(Base64.encode(buffer));
        resp.flushBuffer();        
      }
      
      is.close();

  } catch (MalformedURLException e) {
    resp.getWriter().println("Malformed url: "+e.getMessage());
  } catch (IOException e) {
    resp.getWriter().println("IOEXception :"+e.getMessage());
  }
    
  }
}