    HeadersServlet.java

    /*
     * @(#)HeadersServlet.java
     *
     * Copyright (c) 1998-1999 Servertec. All Rights Reserved.
     *
     * This software is the proprietary and confidential property of Servertec.
     * Use only in accordance with the terms of the license agreement.
     *
     * SERVERTEC MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY
     * OF THE SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
     * TO THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
     * PURPOSE, OR NON-INFRINGEMENT. SERVERTEC SHALL NOT BE LIABLE FOR ANY
     * DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
     * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES.
     *
     * THIS NOTICE MUST NOT BE ALTERED NOR REMOVED.
     *
     * CopyrightVersion 1.0
     */

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

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

    import stec.iws.Utils;

    public class HeadersServlet extends HttpServlet
    {
        public void service(HttpServletRequest _request, HttpServletResponse _response) throws ServletException, IOException
        {
            _response.setContentType("text/html");

            ServletOutputStream out = _response.getOutputStream();

            out.println("<html>");
            out.println("<head><title>Display Headers</title></head>");
            out.println("<body>");

            server_variables(out, _request);
            headers(out, _request);

            out.println("</body>");
            out.println("</html>");
            out.close();
        }

        protected static void server_variables(ServletOutputStream out, HttpServletRequest _request) throws IOException
        {
            out.println("<h1>Server Variables:</h1>");

            out.println("<lit>");

            out.println("AUTH_TYPE = [" + _request.getAuthType() + "]<br>");
            out.println("REQUEST_METHOD = [" + _request.getMethod() + "]<br>");
            out.println("PATH_INFO = [" + _request.getPathInfo() + "]<br>");
            out.println("PATH_TRANSLATED = [" + _request.getPathTranslated() + "]<br>");
            out.println("QUERY_STRING = [" + _request.getQueryString() + "]<br>");
            out.println("REQUEST_URI = [" + _request.getRequestURI() + "]<br>");
            out.println("SCRIPT_NAME = [" + _request.getServletPath() + "]<br>");
            //out.println("LOCAL_ADDR = [" + _request.getLocalAddr() + "]<br>");
            out.println("SERVER_PROTOCOL = [" + _request.getProtocol() + "]<br>");
            out.println("REMOTE_ADDR = [" + _request.getRemoteAddr() + "]<br>");
            out.println("REMOTE_HOST = [" + _request.getRemoteHost() + "]<br>");
            out.println("HTTPS = [" + _request.getScheme() + "]<br>");
            out.println("SERVER_NAME = [" + _request.getServerName() + "]<br>");
            out.println("SERVER_PORT = [" + _request.getServerPort() + "]<br>");

            out.println("</lit>");
        }

        protected static void headers(ServletOutputStream out, HttpServletRequest _request) throws IOException
        {
            out.println("<h1>Headers:</h1>");

            out.println("<lit>");

            String key;
            String value;

            Enumeration vars = _request.getHeaderNames();
            while(vars.hasMoreElements())
            {
                key = (String)vars.nextElement();
                value = _request.getHeader(key);
                out.println(key + " = [" + value + "]<br>");
            }

            out.println("</lit>");
        }

        public String getServletInfo()
        {
            return "HeadersServlet";
        }
    }