001    /**
002     * Copyright (c) 2000-2013 Liferay, Inc. All rights reserved.
003     *
004     * This library is free software; you can redistribute it and/or modify it under
005     * the terms of the GNU Lesser General Public License as published by the Free
006     * Software Foundation; either version 2.1 of the License, or (at your option)
007     * any later version.
008     *
009     * This library is distributed in the hope that it will be useful, but WITHOUT
010     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
011     * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
012     * details.
013     */
014    
015    package com.liferay.portlet.messageboards.action;
016    
017    import com.liferay.portal.kernel.json.JSONFactoryUtil;
018    import com.liferay.portal.kernel.json.JSONObject;
019    import com.liferay.portal.kernel.servlet.SessionErrors;
020    import com.liferay.portal.kernel.util.Constants;
021    import com.liferay.portal.kernel.util.ParamUtil;
022    import com.liferay.portal.kernel.workflow.WorkflowConstants;
023    import com.liferay.portal.model.User;
024    import com.liferay.portal.security.auth.PrincipalException;
025    import com.liferay.portal.security.auth.PrincipalThreadLocal;
026    import com.liferay.portal.service.ServiceContext;
027    import com.liferay.portal.service.ServiceContextFactory;
028    import com.liferay.portal.service.SubscriptionLocalServiceUtil;
029    import com.liferay.portal.service.UserLocalServiceUtil;
030    import com.liferay.portal.struts.PortletAction;
031    import com.liferay.portal.theme.ThemeDisplay;
032    import com.liferay.portal.util.PortalUtil;
033    import com.liferay.portal.util.WebKeys;
034    import com.liferay.portlet.messageboards.MessageBodyException;
035    import com.liferay.portlet.messageboards.NoSuchMessageException;
036    import com.liferay.portlet.messageboards.RequiredMessageException;
037    import com.liferay.portlet.messageboards.model.MBMessage;
038    import com.liferay.portlet.messageboards.service.MBMessageServiceUtil;
039    
040    import javax.portlet.ActionRequest;
041    import javax.portlet.ActionResponse;
042    import javax.portlet.PortletConfig;
043    import javax.portlet.RenderRequest;
044    import javax.portlet.RenderResponse;
045    
046    import org.apache.struts.action.ActionForm;
047    import org.apache.struts.action.ActionForward;
048    import org.apache.struts.action.ActionMapping;
049    
050    /**
051     * @author Brian Wing Shun Chan
052     * @author Sergio Gonz??lez
053     */
054    public class EditDiscussionAction extends PortletAction {
055    
056            @Override
057            public void processAction(
058                            ActionMapping actionMapping, ActionForm actionForm,
059                            PortletConfig portletConfig, ActionRequest actionRequest,
060                            ActionResponse actionResponse)
061                    throws Exception {
062    
063                    String cmd = ParamUtil.getString(actionRequest, Constants.CMD);
064    
065                    try {
066                            String redirect = PortalUtil.escapeRedirect(
067                                    ParamUtil.getString(actionRequest, "redirect"));
068    
069                            if (cmd.equals(Constants.ADD) || cmd.equals(Constants.UPDATE)) {
070                                    MBMessage message = updateMessage(actionRequest);
071    
072                                    String randomNamespace = ParamUtil.getString(
073                                            actionRequest, "randomNamespace");
074    
075                                    JSONObject jsonObject = JSONFactoryUtil.createJSONObject();
076    
077                                    jsonObject.put("messageId", message.getMessageId());
078                                    jsonObject.put("randomNamespace", randomNamespace);
079    
080                                    writeJSON(actionRequest, actionResponse, jsonObject);
081    
082                                    return;
083                            }
084                            else if (cmd.equals(Constants.DELETE)) {
085                                    deleteMessage(actionRequest);
086                            }
087                            else if (cmd.equals(Constants.SUBSCRIBE_TO_COMMENTS)) {
088                                    subscribeToComments(actionRequest, true);
089                            }
090                            else if (cmd.equals(Constants.UNSUBSCRIBE_FROM_COMMENTS)) {
091                                    subscribeToComments(actionRequest, false);
092                            }
093    
094                            sendRedirect(actionRequest, actionResponse, redirect);
095                    }
096                    catch (Exception e) {
097                            if (e instanceof MessageBodyException ||
098                                    e instanceof NoSuchMessageException ||
099                                    e instanceof PrincipalException ||
100                                    e instanceof RequiredMessageException) {
101    
102                                    JSONObject jsonObject = JSONFactoryUtil.createJSONObject();
103    
104                                    jsonObject.putException(e);
105    
106                                    writeJSON(actionRequest, actionResponse, jsonObject);
107                            }
108                            else {
109                                    throw e;
110                            }
111                    }
112            }
113    
114            @Override
115            public ActionForward render(
116                            ActionMapping actionMapping, ActionForm actionForm,
117                            PortletConfig portletConfig, RenderRequest renderRequest,
118                            RenderResponse renderResponse)
119                    throws Exception {
120    
121                    try {
122                            ActionUtil.getMessage(renderRequest);
123                    }
124                    catch (Exception e) {
125                            if (e instanceof NoSuchMessageException ||
126                                    e instanceof PrincipalException) {
127    
128                                    SessionErrors.add(renderRequest, e.getClass());
129    
130                                    return actionMapping.findForward(
131                                            "portlet.message_boards.error");
132                            }
133                            else {
134                                    throw e;
135                            }
136                    }
137    
138                    return actionMapping.findForward(
139                            getForward(
140                                    renderRequest, "portlet.message_boards.edit_discussion"));
141            }
142    
143            protected void deleteMessage(ActionRequest actionRequest) throws Exception {
144                    long groupId = PortalUtil.getScopeGroupId(actionRequest);
145    
146                    String className = ParamUtil.getString(actionRequest, "className");
147                    long classPK = ParamUtil.getLong(actionRequest, "classPK");
148                    String permissionClassName = ParamUtil.getString(
149                            actionRequest, "permissionClassName");
150                    long permissionClassPK = ParamUtil.getLong(
151                            actionRequest, "permissionClassPK");
152                    long permissionOwnerId = ParamUtil.getLong(
153                            actionRequest, "permissionOwnerId");
154    
155                    long messageId = ParamUtil.getLong(actionRequest, "messageId");
156    
157                    MBMessageServiceUtil.deleteDiscussionMessage(
158                            groupId, className, classPK, permissionClassName, permissionClassPK,
159                            permissionOwnerId, messageId);
160            }
161    
162            @Override
163            protected boolean isCheckMethodOnProcessAction() {
164                    return _CHECK_METHOD_ON_PROCESS_ACTION;
165            }
166    
167            protected void subscribeToComments(
168                            ActionRequest actionRequest, boolean subscribe)
169                    throws Exception {
170    
171                    ThemeDisplay themeDisplay = (ThemeDisplay)actionRequest.getAttribute(
172                            WebKeys.THEME_DISPLAY);
173    
174                    String className = ParamUtil.getString(actionRequest, "className");
175                    long classPK = ParamUtil.getLong(actionRequest, "classPK");
176    
177                    if (subscribe) {
178                            SubscriptionLocalServiceUtil.addSubscription(
179                                    themeDisplay.getUserId(), themeDisplay.getScopeGroupId(),
180                                    className, classPK);
181                    }
182                    else {
183                            SubscriptionLocalServiceUtil.deleteSubscription(
184                                    themeDisplay.getUserId(), className, classPK);
185                    }
186            }
187    
188            protected MBMessage updateMessage(ActionRequest actionRequest)
189                    throws Exception {
190    
191                    ThemeDisplay themeDisplay = (ThemeDisplay)actionRequest.getAttribute(
192                            WebKeys.THEME_DISPLAY);
193    
194                    String className = ParamUtil.getString(actionRequest, "className");
195                    long classPK = ParamUtil.getLong(actionRequest, "classPK");
196                    String permissionClassName = ParamUtil.getString(
197                            actionRequest, "permissionClassName");
198                    long permissionClassPK = ParamUtil.getLong(
199                            actionRequest, "permissionClassPK");
200                    long permissionOwnerId = ParamUtil.getLong(
201                            actionRequest, "permissionOwnerId");
202    
203                    long messageId = ParamUtil.getLong(actionRequest, "messageId");
204    
205                    long threadId = ParamUtil.getLong(actionRequest, "threadId");
206                    long parentMessageId = ParamUtil.getLong(
207                            actionRequest, "parentMessageId");
208                    String subject = ParamUtil.getString(actionRequest, "subject");
209                    String body = ParamUtil.getString(actionRequest, "body");
210    
211                    ServiceContext serviceContext = ServiceContextFactory.getInstance(
212                            MBMessage.class.getName(), actionRequest);
213    
214                    MBMessage message = null;
215    
216                    if (messageId <= 0) {
217    
218                            // Add message
219    
220                            User user = null;
221    
222                            if (themeDisplay.isSignedIn()) {
223                                    user = themeDisplay.getUser();
224                            }
225                            else {
226                                    String emailAddress = ParamUtil.getString(
227                                            actionRequest, "emailAddress");
228    
229                                    user = UserLocalServiceUtil.fetchUserByEmailAddress(
230                                            themeDisplay.getCompanyId(), emailAddress);
231    
232                                    if ((user == null) ||
233                                            (user.getStatus() != WorkflowConstants.STATUS_INCOMPLETE)) {
234    
235                                            return null;
236                                    }
237                            }
238    
239                            String name = PrincipalThreadLocal.getName();
240    
241                            PrincipalThreadLocal.setName(user.getUserId());
242    
243                            try {
244                                    message = MBMessageServiceUtil.addDiscussionMessage(
245                                            serviceContext.getScopeGroupId(), className, classPK,
246                                            permissionClassName, permissionClassPK, permissionOwnerId,
247                                            threadId, parentMessageId, subject, body, serviceContext);
248                            }
249                            finally {
250                                    PrincipalThreadLocal.setName(name);
251                            }
252                    }
253                    else {
254    
255                            // Update message
256    
257                            message = MBMessageServiceUtil.updateDiscussionMessage(
258                                    className, classPK, permissionClassName, permissionClassPK,
259                                    permissionOwnerId, messageId, subject, body, serviceContext);
260                    }
261    
262                    // Subscription
263    
264                    boolean subscribe = ParamUtil.getBoolean(actionRequest, "subscribe");
265    
266                    if (subscribe) {
267                            SubscriptionLocalServiceUtil.addSubscription(
268                                    themeDisplay.getUserId(), themeDisplay.getScopeGroupId(),
269                                    className, classPK);
270                    }
271    
272                    return message;
273            }
274    
275            private static final boolean _CHECK_METHOD_ON_PROCESS_ACTION = false;
276    
277    }