// TestServlet - simple servlet that tests the Servlet API
//
// Copyright (C) 1996,1998 by Jef Poskanzer <jef@acme.com>. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
// 1. Redistributions of source code must retain the above copyright
//    notice, this list of conditions and the following disclaimer.
// 2. Redistributions in binary form must reproduce the above copyright
//    notice, this list of conditions and the following disclaimer in the
//    documentation and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
// SUCH DAMAGE.
//
// Visit the ACME Labs Java page for up-to-date versions of this and other
// fine Java utilities: http://www.acme.com/java/

package Acme.Serve;

import java.io.*;
import java.util.*;
import Acme.Serve.servlet.*;
import Acme.Serve.servlet.http.*;

/// Simple servlet that tests the Servlet API.
// Sample output:
// <PRE>
// getContentLength(): -1
// getContentType(): null
// getProtocol(): HTTP/1.0
// getScheme(): http
// getServerName(): www.acme.com
// getServerPort(): 1234
// getRemoteAddr(): 192.100.66.1
// getRemoteHost(): acme.com
// getMethod(): GET
// getRequestURI(): http://www.acme.com:1234/TestServlet?foo=bar
// getServletPath(): /TestServlet
// getPathInfo(): null
// getPathTranslated(): null
// getQueryString(): foo=bar
// getRemoteUser(): null
// getAuthType(): null
// 
// Parameters:
//     foo = bar
// 
// Header:
//     accept: text/html, image/gif, image/jpeg, *; q=.2
//     user-agent: Java1.0.2
// </PRE>
// <A HREF="/resources/classes/Acme/Serve/TestServlet.java">Fetch the software.</A><BR>
// <A HREF="/resources/classes/Acme.tar.gz">Fetch the entire Acme package.</A>

public class TestServlet extends HttpServlet
    {

    /// Returns a string containing information about the author, version, and
    // copyright of the servlet.
    public String getServletInfo()
	{
	return "simple servlet that tests the Servlet API";
	}

    /// Services a single request from the client.
    // @param req the servlet request
    // @param req the servlet response
    // @exception ServletException when an exception has occurred
    public void service( HttpServletRequest req, HttpServletResponse res ) throws ServletException, IOException
	{
	Enumeration en;
	log( "called" );
	res.setStatus( HttpServletResponse.SC_OK );
	res.setContentType( "text/html" );
	ServletOutputStream p = res.getOutputStream();
	p.println( "<HTML><HEAD>" );
	p.println( "<TITLE>Test Servlet Output</TITLE>" );
	p.println( "</HEAD><BODY>" );
	p.println( "<H2>Test Servlet Output</H2>" );
	p.println( "<HR>" );
	p.println( "<PRE>" );
	p.println( "getContentLength(): " + req.getContentLength() );
	p.println( "getContentType(): " + req.getContentType() );
	p.println( "getProtocol(): " + req.getProtocol() );
	p.println( "getScheme(): " + req.getScheme() );
	p.println( "getServerName(): " + req.getServerName() );
	p.println( "getServerPort(): " + req.getServerPort() );
	p.println( "getRemoteAddr(): " + req.getRemoteAddr() );
	p.println( "getRemoteHost(): " + req.getRemoteHost() );
	p.println( "getMethod(): " + req.getMethod() );
	p.println( "getRequestURI(): " + req.getRequestURI() );
	p.println( "getServletPath(): " + req.getServletPath() );
	p.println( "getPathInfo(): " + req.getPathInfo() );
	p.println( "getPathTranslated(): " + req.getPathTranslated() );
	p.println( "getQueryString(): " + req.getQueryString() );
	p.println( "getRemoteUser(): " + req.getRemoteUser() );
	p.println( "getAuthType(): " + req.getAuthType() );
	p.println( "" );
	p.println( "Parameters:" );
	en = req.getParameterNames();
	while ( en.hasMoreElements() )
	    {
	    String name = (String) en.nextElement();
	    p.println( "    " + name + " = " + req.getParameter( name ) );
	    }
	p.println( "" );
	p.println( "Headers:" );
	en = req.getHeaderNames();
	while ( en.hasMoreElements() )
	    {
	    String name = (String) en.nextElement();
	    p.println( "    " + name + ": " + req.getHeader( name ) );
	    }
	p.println( "</PRE>" );
	p.println( "<HR>" );
	p.println( "</BODY></HTML>" );
	p.flush();
	p.close();
	}

    }
