001/*
002 *  Copyright 2018 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 */
016
017package org.ametys.cms.repository.comment.actions;
018
019import java.util.HashMap;
020import java.util.Map;
021
022import org.apache.avalon.framework.parameters.Parameters;
023import org.apache.avalon.framework.service.ServiceException;
024import org.apache.avalon.framework.service.ServiceManager;
025import org.apache.cocoon.environment.ObjectModelHelper;
026import org.apache.cocoon.environment.Redirector;
027import org.apache.cocoon.environment.Request;
028import org.apache.cocoon.environment.SourceResolver;
029import org.apache.commons.lang.StringUtils;
030
031import org.ametys.cms.ObservationConstants;
032import org.ametys.cms.content.ContentHelper;
033import org.ametys.cms.repository.comment.Comment;
034import org.ametys.cms.repository.comment.CommentManagerExtensionPoint;
035import org.ametys.cms.repository.comment.CommentableContent;
036import org.ametys.core.cocoon.ActionResultGenerator;
037import org.ametys.core.observation.Event;
038import org.ametys.core.right.RightManager.RightResult;
039import org.ametys.core.user.User;
040import org.ametys.core.user.UserIdentity;
041import org.ametys.plugins.core.user.UserHelper;
042import org.ametys.plugins.repository.metadata.UnknownMetadataException;
043
044/**
045 * Delete a comment
046 */
047public class DeleteCommentAction extends AbstractCommentAction
048{
049    /** The listeners for this action */
050    protected CommentManagerExtensionPoint _commentManager;
051
052    /** The content helper */
053    protected ContentHelper _contentHelper;
054   
055    /** The user helper */
056    protected UserHelper _userHelper;
057   
058    @Override
059    public void service(ServiceManager smanager) throws ServiceException
060    {
061        super.service(smanager);
062        _commentManager = (CommentManagerExtensionPoint) smanager.lookup(CommentManagerExtensionPoint.ROLE);
063        _contentHelper = (ContentHelper) smanager.lookup(ContentHelper.ROLE);
064        _userHelper = (UserHelper) smanager.lookup(UserHelper.ROLE);
065    }
066    
067    @Override
068    public Map act(Redirector redirector, SourceResolver resolver, Map objectModel, String source, Parameters parameters) throws Exception
069    {
070        Request request = ObjectModelHelper.getRequest(objectModel);
071
072        Map<String, Object> results = new HashMap<>();
073        
074        String contentId = request.getParameter(PARAMETER_CONTENTID);
075        if (StringUtils.isBlank(contentId))
076        {
077            throw new IllegalArgumentException("Missing or empty 'content-id' parameter to like a comment");
078        }
079        
080        String commentId = request.getParameter(PARAMETER_COMMENTID);
081        if (StringUtils.isBlank(commentId))
082        {
083            throw new IllegalArgumentException("Missing or empty 'comment-id' parameter to like a comment");
084        }
085        
086        CommentableContent content = getContent(request, contentId);
087        Comment comment = content.getComment(commentId);
088        
089        UserIdentity currentUser = getCurrentUser();
090        User user = _userHelper.getUser(currentUser);
091        Map<String, Object> commentParams = new HashMap<>();
092        commentParams.put("id", commentId);
093        commentParams.put("contentId", contentId);
094        commentParams.put("contentTitle", _contentHelper.getTitle(content));
095
096        String authorEmail = comment.getAuthorEmail();
097        String userEmail = user.getEmail();
098        boolean isUserOwnComment = StringUtils.isNotBlank(userEmail) && StringUtils.equals(authorEmail, userEmail);
099        
100        if (isUserOwnComment || _rightManager.hasRight(currentUser, "CMS_Rights_CommentModerate", content).equals(RightResult.RIGHT_ALLOW))
101        {
102            try
103            {
104                Map<String, Object> eventParams = new HashMap<>();
105                eventParams.put(ObservationConstants.ARGS_CONTENT, content);
106                eventParams.put(ObservationConstants.ARGS_COMMENT_ID, comment.getId());
107                eventParams.put(ObservationConstants.ARGS_COMMENT_AUTHOR, comment.getAuthorName());
108                eventParams.put(ObservationConstants.ARGS_COMMENT_AUTHOR_EMAIL, comment.getAuthorEmail());
109                eventParams.put(ObservationConstants.ARGS_COMMENT_VALIDATED, comment.isValidated());
110                eventParams.put("comment.content", comment.getContent());
111                
112                _observationManager.notify(new Event(ObservationConstants.EVENT_CONTENT_COMMENT_DELETING, getCurrentUser(), eventParams));
113                
114                comment.remove();
115                content.saveChanges();
116                
117                _observationManager.notify(new Event(ObservationConstants.EVENT_CONTENT_COMMENT_DELETED, getCurrentUser(), eventParams));
118    
119                results.put("deleted", true);
120            }
121            catch (UnknownMetadataException e)
122            {
123                getLogger().error("Can not remove a non existing comment", e);
124                results.put("deleted", false);
125            }
126        }
127        else
128        {
129            results.put("deleted", false);
130        }
131        
132        results.put("contentId", content.getId());
133        results.put("commentId", comment.getId());
134
135        request.setAttribute(ActionResultGenerator.MAP_REQUEST_ATTR, results);
136        return EMPTY_MAP;
137    }
138}