| // |
| // ======================================================================== |
| // Copyright (c) 1995-2015 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.gzip; |
| |
| import java.io.IOException; |
| |
| import javax.servlet.AsyncContext; |
| import javax.servlet.AsyncEvent; |
| import javax.servlet.AsyncListener; |
| import javax.servlet.Filter; |
| import javax.servlet.FilterChain; |
| import javax.servlet.FilterConfig; |
| import javax.servlet.ServletException; |
| import javax.servlet.ServletRequest; |
| import javax.servlet.ServletResponse; |
| |
| import org.eclipse.jetty.util.log.Log; |
| import org.eclipse.jetty.util.log.Logger; |
| |
| /** |
| * Filter that merely manipulates the AsyncContext. |
| * <p> |
| * The pattern of manipulation is modeled after how DOSFilter behaves. The purpose of this filter is to test arbitrary filter chains that could see unintended |
| * side-effects of async context manipulation. |
| */ |
| public class AsyncManipFilter implements Filter, AsyncListener |
| { |
| private static final Logger LOG = Log.getLogger(AsyncManipFilter.class); |
| private static final String MANIP_KEY = AsyncManipFilter.class.getName(); |
| |
| @Override |
| public void init(FilterConfig filterConfig) throws ServletException |
| { |
| } |
| |
| @Override |
| public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException |
| { |
| LOG.debug("doFilter() - {}", chain); |
| AsyncContext ctx = (AsyncContext)request.getAttribute(MANIP_KEY); |
| if (ctx == null) |
| { |
| LOG.debug("Initial pass through: {}", chain); |
| ctx = request.startAsync(); |
| ctx.addListener(this); |
| ctx.setTimeout(1000); |
| LOG.debug("AsyncContext: {}", ctx); |
| request.setAttribute(MANIP_KEY,ctx); |
| return; |
| } |
| else |
| { |
| LOG.debug("Second pass through: {}", chain); |
| chain.doFilter(request,response); |
| } |
| } |
| |
| @Override |
| public void destroy() |
| { |
| } |
| |
| @Override |
| public void onComplete(AsyncEvent event) throws IOException |
| { |
| LOG.debug("onComplete() {}",event); |
| } |
| |
| @Override |
| public void onTimeout(AsyncEvent event) throws IOException |
| { |
| LOG.debug("onTimeout() {}",event.getAsyncContext()); |
| event.getAsyncContext().dispatch(); |
| } |
| |
| @Override |
| public void onError(AsyncEvent event) throws IOException |
| { |
| LOG.debug("onError()",event.getThrowable()); |
| } |
| |
| @Override |
| public void onStartAsync(AsyncEvent event) throws IOException |
| { |
| LOG.debug("onTimeout() {}",event); |
| } |
| } |