org.eclipse.jetty.server.handler.DefaultHandler Maven / Gradle / Ivy
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//
// ========================================================================
// Copyright (c) 1995-2012 Mort Bay Consulting Pty. Ltd.
// ------------------------------------------------------------------------
// All rights reserved. This program and the accompanying materials
// are made available under the terms of the Eclipse Public License v1.0
// and Apache License v2.0 which accompanies this distribution.
//
// The Eclipse Public License is available at
// http://www.eclipse.org/legal/epl-v10.html
//
// The Apache License v2.0 is available at
// http://www.opensource.org/licenses/apache2.0.php
//
// You may elect to redistribute this code under either of these licenses.
// ========================================================================
//
package org.eclipse.jetty.server.handler;
import java.io.IOException;
import java.io.OutputStream;
import java.net.URL;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.eclipse.jetty.http.HttpHeader;
import org.eclipse.jetty.http.HttpMethod;
import org.eclipse.jetty.http.MimeTypes;
import org.eclipse.jetty.server.Handler;
import org.eclipse.jetty.server.Request;
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.util.ByteArrayISO8859Writer;
import org.eclipse.jetty.util.IO;
import org.eclipse.jetty.util.log.Log;
import org.eclipse.jetty.util.log.Logger;
import org.eclipse.jetty.util.resource.Resource;
/* ------------------------------------------------------------ */
/** Default Handler.
*
* This handle will deal with unhandled requests in the server.
* For requests for favicon.ico, the Jetty icon is served.
* For reqests to '/' a 404 with a list of known contexts is served.
* For all other requests a normal 404 is served.
*
*
* @org.apache.xbean.XBean
*/
public class DefaultHandler extends AbstractHandler
{
private static final Logger LOG = Log.getLogger(DefaultHandler.class);
final long _faviconModified=(System.currentTimeMillis()/1000)*1000L;
byte[] _favicon;
boolean _serveIcon=true;
boolean _showContexts=true;
public DefaultHandler()
{
try
{
URL fav = this.getClass().getClassLoader().getResource("org/eclipse/jetty/favicon.ico");
if (fav!=null)
{
Resource r = Resource.newResource(fav);
_favicon=IO.readBytes(r.getInputStream());
}
}
catch(Exception e)
{
LOG.warn(e);
}
}
/* ------------------------------------------------------------ */
/*
* @see org.eclipse.jetty.server.server.Handler#handle(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse, int)
*/
@Override
public void handle(String target, Request baseRequest, HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException
{
if (response.isCommitted() || baseRequest.isHandled())
return;
baseRequest.setHandled(true);
String method=request.getMethod();
// little cheat for common request
if (_serveIcon && _favicon!=null && HttpMethod.GET.is(method) && request.getRequestURI().equals("/favicon.ico"))
{
if (request.getDateHeader(HttpHeader.IF_MODIFIED_SINCE.toString())==_faviconModified)
response.setStatus(HttpServletResponse.SC_NOT_MODIFIED);
else
{
response.setStatus(HttpServletResponse.SC_OK);
response.setContentType("image/x-icon");
response.setContentLength(_favicon.length);
response.setDateHeader(HttpHeader.LAST_MODIFIED.toString(), _faviconModified);
response.setHeader(HttpHeader.CACHE_CONTROL.toString(),"max-age=360000,public");
response.getOutputStream().write(_favicon);
}
return;
}
if (!_showContexts || !HttpMethod.GET.is(method) || !request.getRequestURI().equals("/"))
{
response.sendError(HttpServletResponse.SC_NOT_FOUND);
return;
}
response.setStatus(HttpServletResponse.SC_NOT_FOUND);
response.setContentType(MimeTypes.Type.TEXT_HTML.toString());
ByteArrayISO8859Writer writer = new ByteArrayISO8859Writer(1500);
writer.write("\n\nError 404 - Not Found");
writer.write(" \n\nError 404 - Not Found.
\n");
writer.write("No context on this server matched or handled this request.
");
writer.write("Contexts known to this server are: ");
Server server = getServer();
Handler[] handlers = server==null?null:server.getChildHandlersByClass(ContextHandler.class);
for (int i=0;handlers!=null && i0)
writer.write("http://"+context.getVirtualHosts()[0]+":"+request.getLocalPort());
writer.write(context.getContextPath());
if (context.getContextPath().length()>1 && context.getContextPath().endsWith("/"))
writer.write("/");
writer.write("\">");
writer.write(context.getContextPath());
if (context.getVirtualHosts()!=null && context.getVirtualHosts().length>0)
writer.write(" @ "+context.getVirtualHosts()[0]+":"+request.getLocalPort());
writer.write(" ---> ");
writer.write(context.toString());
writer.write("\n");
}
else
{
writer.write("- ");
writer.write(context.getContextPath());
if (context.getVirtualHosts()!=null && context.getVirtualHosts().length>0)
writer.write(" @ "+context.getVirtualHosts()[0]+":"+request.getLocalPort());
writer.write(" ---> ");
writer.write(context.toString());
if (context.isFailed())
writer.write(" [failed]");
if (context.isStopped())
writer.write(" [stopped]");
writer.write("
\n");
}
}
writer.write("
");
writer.write("![](\"/favicon.ico\"/)
");
writer.write("Powered by Jetty:// Java Web Server
\n");
writer.write("\n\n\n");
writer.flush();
response.setContentLength(writer.size());
OutputStream out=response.getOutputStream();
writer.writeTo(out);
out.close();
}
/* ------------------------------------------------------------ */
/**
* @return Returns true if the handle can server the jetty favicon.ico
*/
public boolean getServeIcon()
{
return _serveIcon;
}
/* ------------------------------------------------------------ */
/**
* @param serveIcon true if the handle can server the jetty favicon.ico
*/
public void setServeIcon(boolean serveIcon)
{
_serveIcon = serveIcon;
}
public boolean getShowContexts()
{
return _showContexts;
}
public void setShowContexts(boolean show)
{
_showContexts = show;
}
}