/*
 *  This file is part of the Heritrix web crawler (crawler.archive.org).
 *
 *  Licensed to the Internet Archive (IA) by one or more individual 
 *  contributors. 
 *
 *  The IA licenses this file to You under the Apache License, Version 2.0
 *  (the "License"); you may not use this file except in compliance with
 *  the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */
 
package org.archive.crawler.selftest;

import java.io.IOException;
import java.util.Enumeration;

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

/**
 * @author pjack
 */
public class UserAgentServlet extends HttpServlet {
    private static final long serialVersionUID = 1L;

    private String ua;
    private String from;
    
    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) 
    throws ServletException, IOException {
        Enumeration<?> e = req.getHeaderNames();
        while (e.hasMoreElements()) {
            String name = (String)e.nextElement();
            System.out.println(name + "=" + req.getHeader(name));
        }
        this.ua = req.getHeader("User-Agent");
        this.from = req.getHeader("From");
        resp.getWriter().println("This space intentionally left blank.");
        resp.getWriter().close();
    }
    
    
    public String getUserAgent() {
        return ua;
    }
    
    
    public String getFrom() {
        return from;
    }

}