// ========================================================================
// Copyright 1999-2005 Mort Bay Consulting Pty. Ltd.
// ------------------------------------------------------------------------
// Licensed 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.mortbay.jetty.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.mortbay.jetty.Handler;
import org.mortbay.jetty.HttpConnection;
import org.mortbay.jetty.HttpHeaders;
import org.mortbay.jetty.HttpMethods;
import org.mortbay.jetty.MimeTypes;
import org.mortbay.jetty.Request;
import org.mortbay.jetty.Server;
import org.mortbay.log.Log;
import org.mortbay.util.ByteArrayISO8859Writer;
import org.mortbay.util.IO;
import org.mortbay.util.StringUtil;
/* ------------------------------------------------------------ */
/** 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.
* TODO Implement OPTIONS and TRACE methods for the server.
*
* @author Greg Wilkins (gregw)
* @org.apache.xbean.XBean
*/
public class DefaultHandler extends AbstractHandler
{
long _faviconModified=(System.currentTimeMillis()/1000)*1000;
byte[] _favicon;
boolean _serveIcon=true;
public DefaultHandler()
{
try
{
URL fav = this.getClass().getClassLoader().getResource("org/mortbay/jetty/favicon.ico");
if (fav!=null)
_favicon=IO.readBytes(fav.openStream());
}
catch(Exception e)
{
Log.warn(e);
}
}
/* ------------------------------------------------------------ */
/*
* @see org.mortbay.jetty.Handler#handle(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse, int)
*/
public void handle(String target, HttpServletRequest request, HttpServletResponse response, int dispatch) throws IOException, ServletException
{
Request base_request = request instanceof Request?(Request)request:HttpConnection.getCurrentConnection().getRequest();
if (response.isCommitted() || base_request.isHandled())
return;
base_request.setHandled(true);
String method=request.getMethod();
// little cheat for common request
if (_serveIcon && _favicon!=null && method.equals(HttpMethods.GET) && request.getRequestURI().equals("/favicon.ico"))
{
if (request.getDateHeader(HttpHeaders.IF_MODIFIED_SINCE)==_faviconModified)
response.setStatus(HttpServletResponse.SC_NOT_MODIFIED);
else
{
response.setStatus(HttpServletResponse.SC_OK);
response.setContentType("image/x-icon");
response.setContentLength(_favicon.length);
response.setDateHeader(HttpHeaders.LAST_MODIFIED, _faviconModified);
response.getOutputStream().write(_favicon);
}
return;
}
if (!method.equals(HttpMethods.GET) || !request.getRequestURI().equals("/"))
{
response.sendError(HttpServletResponse.SC_NOT_FOUND);
return;
}
response.setStatus(HttpServletResponse.SC_NOT_FOUND);
response.setContentType(MimeTypes.TEXT_HTML);
ByteArrayISO8859Writer writer = new ByteArrayISO8859Writer(1500);
String uri=request.getRequestURI();
uri=StringUtil.replace(uri,"<","<");
uri=StringUtil.replace(uri,">",">");
writer.write("<HTML>\n<HEAD>\n<TITLE>Error 404 - Not Found");
writer.write("</TITLE>\n<BODY>\n<H2>Error 404 - Not Found.</H2>\n");
writer.write("No context on this server matched or handled this request.<BR>");
writer.write("Contexts known to this server are: <ul>");
Server server = getServer();
Handler[] handlers = server==null?null:server.getChildHandlersByClass(ContextHandler.class);
for (int i=0;handlers!=null && i<handlers.length;i++)
{
ContextHandler context = (ContextHandler)handlers[i];
if (context.isRunning())
{
writer.write("<li><a href=\"");
if (context.getVirtualHosts()!=null && context.getVirtualHosts().length>0)
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("</a></li>\n");
}
else
{
writer.write("<li>");
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("</li>\n");
}
}
for (int i=0;i<10;i++)
writer.write("\n<!-- Padding for IE -->");
writer.write("\n</BODY>\n</HTML>\n");
writer.flush();
response.setContentLength(writer.size());
OutputStream out=response.getOutputStream();
writer.writeTo(out);
out.close();
return;
}
/* ------------------------------------------------------------ */
/**
* @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;
}
}