001/*
002 *  Copyright 2017 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.plugins.workspaces.dav;
017
018import java.io.InputStream;
019import java.util.Date;
020import java.util.HashMap;
021import java.util.Map;
022
023import javax.jcr.Node;
024import javax.jcr.lock.Lock;
025import javax.jcr.lock.LockManager;
026import javax.servlet.http.HttpServletRequest;
027
028import org.apache.avalon.framework.parameters.Parameters;
029import org.apache.avalon.framework.service.ServiceException;
030import org.apache.avalon.framework.service.ServiceManager;
031import org.apache.avalon.framework.service.Serviceable;
032import org.apache.cocoon.acting.AbstractAction;
033import org.apache.cocoon.environment.ObjectModelHelper;
034import org.apache.cocoon.environment.Redirector;
035import org.apache.cocoon.environment.SourceResolver;
036import org.apache.cocoon.environment.http.HttpEnvironment;
037import org.apache.cocoon.environment.http.HttpResponse;
038
039import org.ametys.core.observation.Event;
040import org.ametys.core.observation.ObservationManager;
041import org.ametys.core.user.CurrentUserProvider;
042import org.ametys.core.user.UserIdentity;
043import org.ametys.plugins.explorer.ObservationConstants;
044import org.ametys.plugins.explorer.resources.ModifiableResource;
045import org.ametys.plugins.repository.AmetysObject;
046import org.ametys.plugins.repository.RepositoryConstants;
047import org.ametys.plugins.repository.jcr.JCRAmetysObject;
048import org.ametys.plugins.repository.lock.LockHelper;
049import org.ametys.plugins.repository.version.VersionableAmetysObject;
050
051/**
052 * Action for WebDAV PUT method
053 *
054 */
055public class WebdavPutAction extends AbstractAction implements Serviceable
056{
057    /** The current user provider */
058    protected CurrentUserProvider _currentUserProvider;
059    /** Observer manager. */
060    protected ObservationManager _observationManager;
061    
062    @Override
063    public void service(ServiceManager smanager) throws ServiceException
064    {
065        _currentUserProvider = (CurrentUserProvider) smanager.lookup(CurrentUserProvider.ROLE);
066        _observationManager = (ObservationManager) smanager.lookup(ObservationManager.ROLE);
067    }
068    
069    public Map act(Redirector redirector, SourceResolver resolver, Map objectModel, String source, Parameters parameters) throws Exception
070    {
071        HttpServletRequest request = (HttpServletRequest) objectModel.get(HttpEnvironment.HTTP_REQUEST_OBJECT);
072        
073        ModifiableResource resource = (ModifiableResource) request.getAttribute("resource");
074        
075        if (resource.isLocked() && !LockHelper.isLockOwner(resource, _currentUserProvider.getUser()))
076        {
077            HttpResponse response = (HttpResponse) ObjectModelHelper.getResponse(objectModel);
078            response.setStatus(423);
079            return null;
080        }
081        
082        if (resource instanceof JCRAmetysObject)
083        {
084            Node node = ((JCRAmetysObject) resource).getNode();
085            
086            if (node.isLocked())
087            {
088                LockManager lockManager = node.getSession().getWorkspace().getLockManager();
089                
090                Lock lock = lockManager.getLock(node.getPath());
091                Node lockHolder = lock.getNode();
092                
093                lockManager.addLockToken(lockHolder.getProperty(RepositoryConstants.METADATA_LOCKTOKEN).getString());
094            }
095        }
096
097        InputStream is = request.getInputStream();
098                
099        UserIdentity author = _currentUserProvider.getUser();
100        String mimeType = resource.getMimeType();
101        mimeType = mimeType == null ? "application/unknown" : mimeType;
102        
103        resource.setData(is, mimeType, new Date(), author);
104        
105        resource.saveChanges();
106        _checkpoint(resource);
107        
108        Map<String, Object> eventParams = new HashMap<>();
109        
110        eventParams.put(ObservationConstants.ARGS_ID, resource.getId());
111        eventParams.put(ObservationConstants.ARGS_NAME, resource.getName());
112        eventParams.put(ObservationConstants.ARGS_PATH, resource.getPath());
113        eventParams.put(ObservationConstants.ARGS_RESOURCE_PATH, resource.getResourcePath());
114        AmetysObject parent = resource.getParent();
115        if (parent != null)
116        {
117            eventParams.put(ObservationConstants.ARGS_PARENT_ID, parent.getId());
118        }
119        _observationManager.notify(new Event(ObservationConstants.EVENT_RESOURCE_UPDATED, _currentUserProvider.getUser(), eventParams));
120        
121        return EMPTY_MAP;
122    }
123
124    private void _checkpoint(ModifiableResource resource)
125    {
126        if (resource instanceof VersionableAmetysObject)
127        {
128            // Create first version
129            ((VersionableAmetysObject) resource).checkpoint();
130        }
131    }
132}