1   /**
2    * Copyright (c) 2000-2008 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.wiki.action;
24  
25  import com.liferay.documentlibrary.service.DLLocalServiceUtil;
26  import com.liferay.portal.kernel.util.MimeTypesUtil;
27  import com.liferay.portal.kernel.util.ParamUtil;
28  import com.liferay.portal.kernel.util.StringPool;
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.wiki.model.WikiPage;
34  import com.liferay.portlet.wiki.service.WikiPageServiceUtil;
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="GetPageAttachmentAction.java.html"><b><i>View Source</i></b></a>
52   *
53   * @author Jorge Ferrer
54   *
55   */
56  public class GetPageAttachmentAction 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 nodeId = ParamUtil.getLong(request, "nodeId");
65              String title = ParamUtil.getString(request, "title");
66              String fileName = ParamUtil.getString(request, "fileName");
67  
68              getFile(nodeId, title, fileName, request, response);
69  
70              return null;
71          }
72          catch (Exception e) {
73              PortalUtil.sendError(e, request, response);
74  
75              return null;
76          }
77      }
78  
79      public void processAction(
80              ActionMapping mapping, ActionForm form, PortletConfig portletConfig,
81              ActionRequest actionRequest, ActionResponse actionResponse)
82          throws Exception {
83  
84          try {
85              long nodeId = ParamUtil.getLong(actionRequest, "nodeId");
86              String title = ParamUtil.getString(actionRequest, "title");
87              String fileName = ParamUtil.getString(actionRequest, "fileName");
88  
89              HttpServletRequest request = PortalUtil.getHttpServletRequest(
90                  actionRequest);
91              HttpServletResponse response = PortalUtil.getHttpServletResponse(
92                  actionResponse);
93  
94              getFile(nodeId, title, fileName, request, response);
95  
96              setForward(actionRequest, ActionConstants.COMMON_NULL);
97          }
98          catch (Exception e) {
99              PortalUtil.sendError(e, actionRequest, actionResponse);
100         }
101     }
102 
103     protected void getFile(
104             long nodeId, String title, String fileName,
105             HttpServletRequest request, HttpServletResponse response)
106         throws Exception {
107 
108         int pos = fileName.indexOf(StringPool.SLASH);
109 
110         if (pos != -1) {
111             title = fileName.substring(0, pos);
112             fileName = fileName.substring(pos + 1);
113         }
114 
115         InputStream is = null;
116 
117         try {
118             WikiPage page = WikiPageServiceUtil.getPage(nodeId, title);
119 
120             is = DLLocalServiceUtil.getFileAsStream(
121                 page.getCompanyId(), CompanyConstants.SYSTEM,
122                 page.getAttachmentsDir() + "/" + fileName);
123 
124             String contentType = MimeTypesUtil.getContentType(fileName);
125 
126             ServletResponseUtil.sendFile(response, fileName, is, contentType);
127         }
128         finally {
129             ServletResponseUtil.cleanUp(is);
130         }
131     }
132 
133     protected boolean isCheckMethodOnProcessAction() {
134         return _CHECK_METHOD_ON_PROCESS_ACTION;
135     }
136 
137     private static final boolean _CHECK_METHOD_ON_PROCESS_ACTION = false;
138 
139 }