001/*
002 *  Copyright 2010 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.site;
017
018import java.util.Map;
019
020import org.apache.avalon.framework.parameters.Parameters;
021import org.apache.avalon.framework.thread.ThreadSafe;
022import org.apache.cocoon.acting.AbstractAction;
023import org.apache.cocoon.environment.ObjectModelHelper;
024import org.apache.cocoon.environment.Redirector;
025import org.apache.cocoon.environment.Request;
026import org.apache.cocoon.environment.Response;
027import org.apache.cocoon.environment.SourceResolver;
028
029/**
030 * Add the "Content-disposition attachment" header if there's a request parameter "download=true".
031 */
032public class SetContentDispositionHeaderAction extends AbstractAction implements ThreadSafe
033{
034    @Override
035    public Map act(Redirector redirector, SourceResolver resolver, Map objectModel, String source, Parameters parameters) throws Exception
036    {
037        Request request = ObjectModelHelper.getRequest(objectModel);
038        String download = request.getParameter("download");
039        
040        if ("true".equals(download))
041        {
042            Response response = ObjectModelHelper.getResponse(objectModel);
043            response.addHeader("Content-disposition", "attachment");
044        }
045        
046        return null;
047    }
048}