001/*
002 *  Copyright 2012 Anyware Services
003 *
004 *  Licensed under the Apache License, Version 2.0 (the "License");
005 *  you may not use this file except in compliance with the License.
006 *  You may obtain a copy of the License at
007 *
008 *      http://www.apache.org/licenses/LICENSE-2.0
009 *
010 *  Unless required by applicable law or agreed to in writing, software
011 *  distributed under the License is distributed on an "AS IS" BASIS,
012 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 *  See the License for the specific language governing permissions and
014 *  limitations under the License.
015 */
016package org.ametys.web;
017
018import org.apache.cocoon.components.ContextHelper;
019import org.apache.cocoon.environment.Request;
020
021import org.ametys.core.user.UserIdentity;
022import org.ametys.plugins.core.impl.user.AvalonCurrentUserProvider;
023
024/**
025 * This implementation try to find the current user in a request attribute before letting the AvalonCurrentUserProvider get it in session.
026 * This is useful with WebAuthenticateAction that put FO users in the request attribute 
027 */
028public class WebCurrentUserProvider extends AvalonCurrentUserProvider
029{
030    @Override
031    public UserIdentity getUser()
032    {
033        try
034        {
035            Request request = ContextHelper.getRequest(_context);
036            if (request != null)
037            {
038                UserIdentity frontUserIdentity = (UserIdentity) request.getAttribute(WebAuthenticateAction.REQUEST_ATTRIBUTE_FRONTOFFICE_USERIDENTITY);
039                if (frontUserIdentity != null)
040                {
041                    return frontUserIdentity;
042                }
043            }
044        }
045        catch (Exception e)
046        {
047            if (getLogger().isInfoEnabled())
048            {
049                getLogger().info("Unable to look for current user in the request, fallback to AvalonCurrentUserProvider", e);
050            }
051        }
052        
053        return super.getUser();
054    }
055}