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.wiki.action;
016    
017    import com.liferay.portal.kernel.log.Log;
018    import com.liferay.portal.kernel.log.LogFactoryUtil;
019    import com.liferay.portal.kernel.repository.model.FileEntry;
020    import com.liferay.portal.kernel.servlet.ServletResponseUtil;
021    import com.liferay.portal.kernel.util.ParamUtil;
022    import com.liferay.portal.kernel.workflow.WorkflowConstants;
023    import com.liferay.portal.portletfilerepository.PortletFileRepositoryUtil;
024    import com.liferay.portal.struts.ActionConstants;
025    import com.liferay.portal.struts.PortletAction;
026    import com.liferay.portal.util.PortalUtil;
027    import com.liferay.portlet.documentlibrary.NoSuchFileException;
028    import com.liferay.portlet.documentlibrary.model.DLFileEntry;
029    import com.liferay.portlet.documentlibrary.model.DLFileVersion;
030    import com.liferay.portlet.trash.util.TrashUtil;
031    import com.liferay.portlet.wiki.NoSuchPageException;
032    import com.liferay.portlet.wiki.model.WikiPage;
033    import com.liferay.portlet.wiki.service.WikiPageServiceUtil;
034    
035    import javax.portlet.ActionRequest;
036    import javax.portlet.ActionResponse;
037    import javax.portlet.PortletConfig;
038    
039    import javax.servlet.http.HttpServletRequest;
040    import javax.servlet.http.HttpServletResponse;
041    
042    import org.apache.struts.action.ActionForm;
043    import org.apache.struts.action.ActionForward;
044    import org.apache.struts.action.ActionMapping;
045    
046    /**
047     * @author Jorge Ferrer
048     */
049    public class GetPageAttachmentAction extends PortletAction {
050    
051            @Override
052            public void processAction(
053                            ActionMapping mapping, ActionForm form, PortletConfig portletConfig,
054                            ActionRequest actionRequest, ActionResponse actionResponse)
055                    throws Exception {
056    
057                    try {
058                            long nodeId = ParamUtil.getLong(actionRequest, "nodeId");
059                            String title = ParamUtil.getString(actionRequest, "title");
060                            String fileName = ParamUtil.getString(actionRequest, "fileName");
061                            int status = ParamUtil.getInteger(
062                                    actionRequest, "status", WorkflowConstants.STATUS_APPROVED);
063    
064                            HttpServletRequest request = PortalUtil.getHttpServletRequest(
065                                    actionRequest);
066                            HttpServletResponse response = PortalUtil.getHttpServletResponse(
067                                    actionResponse);
068    
069                            getFile(nodeId, title, fileName, status, request, response);
070    
071                            setForward(actionRequest, ActionConstants.COMMON_NULL);
072                    }
073                    catch (Exception e) {
074                            PortalUtil.sendError(e, actionRequest, actionResponse);
075                    }
076            }
077    
078            @Override
079            public ActionForward strutsExecute(
080                            ActionMapping mapping, ActionForm form, HttpServletRequest request,
081                            HttpServletResponse response)
082                    throws Exception {
083    
084                    try {
085                            long nodeId = ParamUtil.getLong(request, "nodeId");
086                            String title = ParamUtil.getString(request, "title");
087                            String fileName = ParamUtil.getString(request, "fileName");
088                            int status = ParamUtil.getInteger(
089                                    request, "status", WorkflowConstants.STATUS_APPROVED);
090    
091                            getFile(nodeId, title, fileName, status, request, response);
092    
093                            return null;
094                    }
095                    catch (Exception e) {
096                            if ((e instanceof NoSuchPageException) ||
097                                    (e instanceof NoSuchFileException)) {
098    
099                                    if (_log.isWarnEnabled()) {
100                                            _log.warn(e);
101                                    }
102                            }
103                            else {
104                                    PortalUtil.sendError(e, request, response);
105                            }
106    
107                            return null;
108                    }
109            }
110    
111            protected void getFile(
112                            long nodeId, String title, String fileName, int status,
113                            HttpServletRequest request, HttpServletResponse response)
114                    throws Exception {
115    
116                    WikiPage wikiPage = WikiPageServiceUtil.getPage(nodeId, title);
117    
118                    FileEntry fileEntry = PortletFileRepositoryUtil.getPortletFileEntry(
119                            wikiPage.getGroupId(), wikiPage.getAttachmentsFolderId(), fileName);
120    
121                    DLFileEntry dlFileEntry = (DLFileEntry)fileEntry.getModel();
122    
123                    DLFileVersion dlFileVersion = dlFileEntry.getFileVersion();
124    
125                    if ((status != WorkflowConstants.STATUS_IN_TRASH) &&
126                            (dlFileVersion.isInTrash() || dlFileEntry.isInTrashContainer())) {
127    
128                            return;
129                    }
130    
131                    if (dlFileVersion.isInTrash()) {
132                            fileName = TrashUtil.getOriginalTitle(dlFileEntry.getTitle());
133                    }
134    
135                    ServletResponseUtil.sendFile(
136                            request, response, fileName, fileEntry.getContentStream(),
137                            fileEntry.getSize(), fileEntry.getMimeType());
138            }
139    
140            @Override
141            protected boolean isCheckMethodOnProcessAction() {
142                    return _CHECK_METHOD_ON_PROCESS_ACTION;
143            }
144    
145            private static final boolean _CHECK_METHOD_ON_PROCESS_ACTION = false;
146    
147            private static Log _log = LogFactoryUtil.getLog(
148                    GetPageAttachmentAction.class);
149    
150    }