//
// ========================================================================
// Copyright (c) 1995-2014 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.websocket.server;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.eclipse.jetty.io.ByteBufferPool;
import org.eclipse.jetty.io.MappedByteBufferPool;
import org.eclipse.jetty.server.Request;
import org.eclipse.jetty.server.handler.HandlerWrapper;
import org.eclipse.jetty.websocket.server.pathmap.PathMappings;
import org.eclipse.jetty.websocket.server.pathmap.PathMappings.MappedResource;
import org.eclipse.jetty.websocket.server.pathmap.PathSpec;
import org.eclipse.jetty.websocket.servlet.WebSocketCreator;
public class WebSocketUpgradeHandlerWrapper extends HandlerWrapper implements MappedWebSocketCreator
{
private PathMappings<WebSocketCreator> pathmap = new PathMappings<>();
private final WebSocketServerFactory factory;
public WebSocketUpgradeHandlerWrapper()
{
this(new MappedByteBufferPool());
}
public WebSocketUpgradeHandlerWrapper(ByteBufferPool bufferPool)
{
factory = new WebSocketServerFactory(bufferPool);
}
@Override
public void addMapping(PathSpec spec, WebSocketCreator creator)
{
pathmap.put(spec,creator);
}
@Override
public PathMappings<WebSocketCreator> getMappings()
{
return pathmap;
}
@Override
public void handle(String target, Request baseRequest, HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException
{
if (factory.isUpgradeRequest(request,response))
{
MappedResource<WebSocketCreator> resource = pathmap.getMatch(target);
if (resource == null)
{
// no match.
response.sendError(HttpServletResponse.SC_NOT_FOUND,"No websocket endpoint matching path: " + target);
return;
}
WebSocketCreator creator = resource.getResource();
// Store PathSpec resource mapping as request attribute
request.setAttribute(PathSpec.class.getName(),resource);
// We have an upgrade request
if (factory.acceptWebSocket(creator,request,response))
{
// We have a socket instance created
return;
}
// If we reach this point, it means we had an incoming request to upgrade
// but it was either not a proper websocket upgrade, or it was possibly rejected
// due to incoming request constraints (controlled by WebSocketCreator)
if (response.isCommitted())
{
// not much we can do at this point.
return;
}
}
super.handle(target,baseRequest,request,response);
}
}