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// ========================================================================
// $Id: ServletHttpContext.java,v 1.27 2005/04/13 16:30:47 janb Exp $
// Copyright 2001-2004 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.openqa.jetty.jetty.servlet;
import java.io.IOException;
import java.util.HashMap;
import java.util.Locale;
import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletResponse;
import org.openqa.jetty.http.HttpContext;
import org.openqa.jetty.http.HttpException;
import org.openqa.jetty.http.HttpRequest;
import org.openqa.jetty.http.HttpResponse;
/* ------------------------------------------------------------ */
/** ServletHttpContext.
* Extends HttpContext with conveniance methods for adding servlets.
* Enforces a single ServletHandler per context.
* @version $Id: ServletHttpContext.java,v 1.27 2005/04/13 16:30:47 janb Exp $
* @author Greg Wilkins (gregw)
*/
public class ServletHttpContext extends HttpContext
{
private HashMap _localeEncodingMap = new HashMap();
private ServletHandler _servletHandler=null;
/* ------------------------------------------------------------ */
/** Constructor.
*/
public ServletHttpContext()
{
super();
}
/* ------------------------------------------------------------ */
/**
* @return The ServletContext.
*/
public ServletContext getServletContext()
{
ServletHandler shandler=getServletHandler();
if (shandler!=null)
return shandler.getServletContext();
throw new IllegalStateException();
}
/* ------------------------------------------------------------ */
/** Get the context ServletHandler.
* Conveniance method. If no ServletHandler exists, a new one is added to
* the context.
* @return ServletHandler
*/
public synchronized ServletHandler getServletHandler()
{
if (_servletHandler==null)
_servletHandler=(ServletHandler) getHandler(ServletHandler.class);
if (_servletHandler==null)
{
_servletHandler=new ServletHandler();
addHandler(_servletHandler);
}
return _servletHandler;
}
/* ------------------------------------------------------------ */
/** Add a servlet to the context.
* Conveniance method.
* If no ServletHandler is found in the context, a new one is added.
* @param pathSpec The pathspec within the context
* @param className The classname of the servlet.
* @return The ServletHolder.
* @exception ClassNotFoundException
* @exception InstantiationException
* @exception IllegalAccessException
*/
public synchronized ServletHolder addServlet(String pathSpec,
String className)
throws ClassNotFoundException,
InstantiationException,
IllegalAccessException
{
return addServlet(className,pathSpec,className);
}
/* ------------------------------------------------------------ */
/** Add a servlet to the context.
* If no ServletHandler is found in the context, a new one is added.
* @param name The name of the servlet.
* @param pathSpec The pathspec within the context
* @param className The classname of the servlet.
* @return The ServletHolder.
* @exception ClassNotFoundException
* @exception InstantiationException
* @exception IllegalAccessException
*/
public synchronized ServletHolder addServlet(String name,
String pathSpec,
String className)
throws ClassNotFoundException,
InstantiationException,
IllegalAccessException
{
return getServletHandler().addServlet(name,pathSpec,className,null);
}
/* ------------------------------------------------------------ */
protected boolean jSecurityCheck(String pathInContext,
HttpRequest request,
HttpResponse response)
throws IOException
{
if (getAuthenticator() instanceof FormAuthenticator &&
pathInContext.endsWith(FormAuthenticator.__J_SECURITY_CHECK) &&
getAuthenticator().authenticate(getRealm(),
pathInContext,
request,
response)==null)
return false;
return true;
}
/* ------------------------------------------------------------ */
public boolean checkSecurityConstraints(String pathInContext,
HttpRequest request,
HttpResponse response)
throws HttpException, IOException
{
if (!super.checkSecurityConstraints(pathInContext,request,response) ||
! jSecurityCheck(pathInContext,request,response))
return false;
return true;
}
/* ------------------------------------------------------------ */
public void addLocaleEncoding(String locale,String encoding)
{
_localeEncodingMap.put(locale, encoding);
}
/* ------------------------------------------------------------ */
/**
* Get the character encoding for a locale. The full locale name is first
* looked up in the map of encodings. If no encoding is found, then the
* locale language is looked up.
*
* @param locale a Locale value
* @return a String representing the character encoding for
* the locale or null if none found.
*/
public String getLocaleEncoding(Locale locale)
{
String encoding = (String)_localeEncodingMap.get(locale.toString());
if (encoding==null)
encoding = (String)_localeEncodingMap.get(locale.getLanguage());
return encoding;
}
/* ------------------------------------------------------------ */
public String toString()
{
return "Servlet"+super.toString();
}
/* ------------------------------------------------------------ */
/* send servlet response error
*
*/
public void sendError(HttpResponse response,int code,String msg)
throws IOException
{
Object wrapper = response.getWrapper();
if (wrapper!=null && wrapper instanceof HttpServletResponse)
((HttpServletResponse)wrapper).sendError(code,msg);
else
super.sendError(response,code,msg);
}
/* ------------------------------------------------------------ */
public void destroy()
{
super.destroy();
if (_localeEncodingMap!=null)
_localeEncodingMap.clear();
_localeEncodingMap=null;
}
/* ------------------------------------------------------------ */
/*
* @see org.openqa.jetty.http.HttpContext#enterContextScope(org.openqa.jetty.http.HttpRequest, org.openqa.jetty.http.HttpResponse)
*/
public Object enterContextScope(HttpRequest request, HttpResponse response)
{
// Make sure servlet wrappers exist for request/response objects
ServletHttpRequest srequest = (ServletHttpRequest) request.getWrapper();
ServletHttpResponse sresponse = (ServletHttpResponse) response.getWrapper();
if (srequest==null)
{
// Build the request and response.
srequest = new ServletHttpRequest(getServletHandler(),null,request);
sresponse = new ServletHttpResponse(srequest,response);
request.setWrapper(srequest);
response.setWrapper(sresponse);
}
return super.enterContextScope(request,response);
}
/* ------------------------------------------------------------ */
/*
* @see org.openqa.jetty.util.Container#doStop()
*/
protected void doStop() throws Exception
{
super.doStop();
_servletHandler=null;
}
}
