001    /**
002     * Copyright (c) 2000-2010 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.documentlibrary.service.DLLocalServiceUtil;
018    import com.liferay.documentlibrary.service.DLServiceUtil;
019    import com.liferay.portal.kernel.util.MimeTypesUtil;
020    import com.liferay.portal.kernel.util.ParamUtil;
021    import com.liferay.portal.model.CompanyConstants;
022    import com.liferay.portal.struts.ActionConstants;
023    import com.liferay.portal.struts.PortletAction;
024    import com.liferay.portal.util.PortalUtil;
025    import com.liferay.portlet.messageboards.model.MBMessage;
026    import com.liferay.portlet.messageboards.service.MBMessageServiceUtil;
027    import com.liferay.util.servlet.ServletResponseUtil;
028    
029    import java.io.InputStream;
030    
031    import javax.portlet.ActionRequest;
032    import javax.portlet.ActionResponse;
033    import javax.portlet.PortletConfig;
034    
035    import javax.servlet.http.HttpServletRequest;
036    import javax.servlet.http.HttpServletResponse;
037    
038    import org.apache.struts.action.ActionForm;
039    import org.apache.struts.action.ActionForward;
040    import org.apache.struts.action.ActionMapping;
041    
042    /**
043     * @author Brian Wing Shun Chan
044     */
045    public class GetMessageAttachmentAction extends PortletAction {
046    
047            public ActionForward strutsExecute(
048                            ActionMapping mapping, ActionForm form, HttpServletRequest request,
049                            HttpServletResponse response)
050                    throws Exception {
051    
052                    try {
053                            long messageId = ParamUtil.getLong(request, "messageId");
054                            String fileName = ParamUtil.getString(request, "attachment");
055    
056                            getFile(messageId, fileName, request, response);
057    
058                            return null;
059                    }
060                    catch (Exception e) {
061                            PortalUtil.sendError(e, request, response);
062    
063                            return null;
064                    }
065            }
066    
067            public void processAction(
068                            ActionMapping mapping, ActionForm form, PortletConfig portletConfig,
069                            ActionRequest actionRequest, ActionResponse actionResponse)
070                    throws Exception {
071    
072                    try {
073                            long messageId = ParamUtil.getLong(actionRequest, "messageId");
074                            String fileName = ParamUtil.getString(actionRequest, "attachment");
075    
076                            HttpServletRequest request = PortalUtil.getHttpServletRequest(
077                                    actionRequest);
078                            HttpServletResponse response = PortalUtil.getHttpServletResponse(
079                                    actionResponse);
080    
081                            getFile(messageId, fileName, request, response);
082    
083                            setForward(actionRequest, ActionConstants.COMMON_NULL);
084                    }
085                    catch (Exception e) {
086                            PortalUtil.sendError(e, actionRequest, actionResponse);
087                    }
088            }
089    
090            protected void getFile(
091                            long messageId, String fileName, HttpServletRequest request,
092                            HttpServletResponse response)
093                    throws Exception {
094    
095                    MBMessage message = MBMessageServiceUtil.getMessage(messageId);
096    
097                    String path = message.getAttachmentsDir() + "/" + fileName;
098    
099                    InputStream is = DLLocalServiceUtil.getFileAsStream(
100                            message.getCompanyId(), CompanyConstants.SYSTEM, path);
101                    int contentLength = (int)DLServiceUtil.getFileSize(
102                            message.getCompanyId(), CompanyConstants.SYSTEM, path);
103                    String contentType = MimeTypesUtil.getContentType(fileName);
104    
105                    ServletResponseUtil.sendFile(
106                            request, response, fileName, is, contentLength, contentType);
107            }
108    
109            protected boolean isCheckMethodOnProcessAction() {
110                    return _CHECK_METHOD_ON_PROCESS_ACTION;
111            }
112    
113            private static final boolean _CHECK_METHOD_ON_PROCESS_ACTION = false;
114    
115    }