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/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.qpid.server.management.plugin.servlet.rest;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.net.SocketAddress;
import java.security.Principal;
import java.util.Collections;
import javax.security.auth.Subject;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import org.apache.commons.codec.binary.Base64;
import org.apache.qpid.server.model.Broker;
import org.apache.qpid.server.registry.ApplicationRegistry;
import org.apache.qpid.server.security.auth.AuthenticationResult;
import org.apache.qpid.server.security.auth.manager.AnonymousAuthenticationManager;
import org.apache.qpid.server.security.auth.manager.AuthenticationManager;
public abstract class AbstractServlet extends HttpServlet
{
private final Broker _broker;
protected AbstractServlet()
{
super();
_broker = ApplicationRegistry.getInstance().getBroker();
}
protected AbstractServlet(Broker broker)
{
_broker = broker;
}
@Override
protected final void doGet(HttpServletRequest request, HttpServletResponse resp) throws ServletException, IOException
{
setAuthorizedSubject(request);
try
{
onGet(request, resp);
}
finally
{
clearAuthorizedSubject();
}
}
protected void onGet(HttpServletRequest request, HttpServletResponse resp) throws IOException, ServletException
{
super.doGet(request, resp);
}
private void clearAuthorizedSubject()
{
org.apache.qpid.server.security.SecurityManager.setThreadSubject(null);
}
private void setAuthorizedSubject(HttpServletRequest request)
{
HttpSession session = request.getSession(true);
Subject subject = (Subject) session.getAttribute("subject");
if(subject == null)
{
Principal principal = request.getUserPrincipal();
if(principal != null)
{
subject = new Subject(false, Collections.singleton(principal),Collections.emptySet(),
Collections.emptySet());
}
else
{
String header = request.getHeader("Authorization");
/*
* TODO - Should configure whether basic authentication is allowed... and in particular whether it
* should be allowed over non-ssl connections
* */
if (header != null)
{
String[] tokens = header.split("\\s");
if(tokens.length >= 2
&& "BASIC".equalsIgnoreCase(tokens[0]))
{
String[] credentials = (new String(Base64.decodeBase64(tokens[1].getBytes()))).split(":",2);
if(credentials.length == 2)
{
SocketAddress address = getSocketAddress(request);
AuthenticationManager authenticationManager =
ApplicationRegistry.getInstance().getAuthenticationManager(address);
AuthenticationResult authResult =
authenticationManager.authenticate(credentials[0], credentials[1]);
subject = authResult.getSubject();
}
}
}
}
}
if (subject == null)
{
subject = AnonymousAuthenticationManager.ANONYMOUS_SUBJECT;
}
org.apache.qpid.server.security.SecurityManager.setThreadSubject(subject);
}
protected Subject getSubject(HttpSession session)
{
return (Subject)session.getAttribute("subject");
}
@Override
protected final void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException
{
setAuthorizedSubject(req);
try
{
onPost(req, resp);
}
finally
{
clearAuthorizedSubject();
}
}
protected void onPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException
{
super.doPost(req, resp);
}
@Override
protected final void doPut(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException
{
setAuthorizedSubject(req);
try
{
onPut(req, resp);
}
finally
{
clearAuthorizedSubject();
}
}
protected void onPut(HttpServletRequest req, HttpServletResponse resp) throws IOException, ServletException
{
super.doPut(req,resp);
}
@Override
protected final void doDelete(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException
{
setAuthorizedSubject(req);
try
{
onDelete(req, resp);
}
finally
{
clearAuthorizedSubject();
}
}
protected void onDelete(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException
{
super.doDelete(req, resp);
}
protected Broker getBroker()
{
return _broker;
}
protected SocketAddress getSocketAddress(HttpServletRequest request)
{
return InetSocketAddress.createUnresolved(request.getServerName(), request.getServerPort());
}
}
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