1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    * Permission is hereby granted, free of charge, to any person obtaining a copy
5    * of this software and associated documentation files (the "Software"), to deal
6    * in the Software without restriction, including without limitation the rights
7    * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8    * copies of the Software, and to permit persons to whom the Software is
9    * furnished to do so, subject to the following conditions:
10   *
11   * The above copyright notice and this permission notice shall be included in
12   * all copies or substantial portions of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.portlet.messageboards.action;
24  
25  import com.liferay.documentlibrary.service.DLLocalServiceUtil;
26  import com.liferay.documentlibrary.service.DLServiceUtil;
27  import com.liferay.portal.kernel.util.MimeTypesUtil;
28  import com.liferay.portal.kernel.util.ParamUtil;
29  import com.liferay.portal.model.CompanyConstants;
30  import com.liferay.portal.struts.ActionConstants;
31  import com.liferay.portal.struts.PortletAction;
32  import com.liferay.portal.util.PortalUtil;
33  import com.liferay.portlet.messageboards.model.MBMessage;
34  import com.liferay.portlet.messageboards.service.MBMessageServiceUtil;
35  import com.liferay.util.servlet.ServletResponseUtil;
36  
37  import java.io.InputStream;
38  
39  import javax.portlet.ActionRequest;
40  import javax.portlet.ActionResponse;
41  import javax.portlet.PortletConfig;
42  
43  import javax.servlet.http.HttpServletRequest;
44  import javax.servlet.http.HttpServletResponse;
45  
46  import org.apache.struts.action.ActionForm;
47  import org.apache.struts.action.ActionForward;
48  import org.apache.struts.action.ActionMapping;
49  
50  /**
51   * <a href="GetMessageAttachmentAction.java.html"><b><i>View Source</i></b></a>
52   *
53   * @author Brian Wing Shun Chan
54   *
55   */
56  public class GetMessageAttachmentAction extends PortletAction {
57  
58      public ActionForward strutsExecute(
59              ActionMapping mapping, ActionForm form, HttpServletRequest request,
60              HttpServletResponse response)
61          throws Exception {
62  
63          try {
64              long messageId = ParamUtil.getLong(request, "messageId");
65              String fileName = ParamUtil.getString(request, "attachment");
66  
67              getFile(messageId, fileName, response);
68  
69              return null;
70          }
71          catch (Exception e) {
72              PortalUtil.sendError(e, request, response);
73  
74              return null;
75          }
76      }
77  
78      public void processAction(
79              ActionMapping mapping, ActionForm form, PortletConfig portletConfig,
80              ActionRequest actionRequest, ActionResponse actionResponse)
81          throws Exception {
82  
83          try {
84              long messageId = ParamUtil.getLong(actionRequest, "messageId");
85              String fileName = ParamUtil.getString(actionRequest, "attachment");
86  
87              HttpServletResponse response = PortalUtil.getHttpServletResponse(
88                  actionResponse);
89  
90              getFile(messageId, fileName, response);
91  
92              setForward(actionRequest, ActionConstants.COMMON_NULL);
93          }
94          catch (Exception e) {
95              PortalUtil.sendError(e, actionRequest, actionResponse);
96          }
97      }
98  
99      protected void getFile(
100             long messageId, String fileName, HttpServletResponse response)
101         throws Exception {
102 
103         InputStream is = null;
104 
105         try {
106             MBMessage message = MBMessageServiceUtil.getMessage(messageId);
107 
108             String path = message.getAttachmentsDir() + "/" + fileName;
109 
110             is = DLLocalServiceUtil.getFileAsStream(
111                 message.getCompanyId(), CompanyConstants.SYSTEM, path);
112             int contentLength = (int)DLServiceUtil.getFileSize(
113                 message.getCompanyId(), CompanyConstants.SYSTEM, path);
114             String contentType = MimeTypesUtil.getContentType(fileName);
115 
116             ServletResponseUtil.sendFile(
117                 response, fileName, is, contentLength, contentType);
118         }
119         finally {
120             ServletResponseUtil.cleanUp(is);
121         }
122     }
123 
124     protected boolean isCheckMethodOnProcessAction() {
125         return _CHECK_METHOD_ON_PROCESS_ACTION;
126     }
127 
128     private static final boolean _CHECK_METHOD_ON_PROCESS_ACTION = false;
129 
130 }