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.portal.kernel.util.HttpUtil;
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.kernel.util.Validator;
30  import com.liferay.portal.struts.ActionConstants;
31  import com.liferay.portal.struts.PortletAction;
32  import com.liferay.portal.theme.ThemeDisplay;
33  import com.liferay.portal.util.PortalUtil;
34  import com.liferay.portal.util.WebKeys;
35  import com.liferay.portlet.ActionRequestImpl;
36  import com.liferay.portlet.PortletURLImpl;
37  import com.liferay.portlet.documentlibrary.util.DocumentConversionUtil;
38  import com.liferay.portlet.wiki.model.WikiPage;
39  import com.liferay.portlet.wiki.service.WikiPageServiceUtil;
40  import com.liferay.portlet.wiki.util.WikiUtil;
41  import com.liferay.util.servlet.ServletResponseUtil;
42  
43  import java.io.ByteArrayInputStream;
44  import java.io.InputStream;
45  
46  import javax.portlet.ActionRequest;
47  import javax.portlet.ActionResponse;
48  import javax.portlet.PortletConfig;
49  import javax.portlet.PortletMode;
50  import javax.portlet.PortletRequest;
51  import javax.portlet.PortletURL;
52  import javax.portlet.WindowState;
53  
54  import javax.servlet.http.HttpServletRequest;
55  import javax.servlet.http.HttpServletResponse;
56  
57  import org.apache.commons.logging.Log;
58  import org.apache.commons.logging.LogFactory;
59  import org.apache.struts.action.ActionForm;
60  import org.apache.struts.action.ActionMapping;
61  
62  /**
63   * <a href="ExportPageAction.java.html"><b><i>View Source</i></b></a>
64   *
65   * @author Bruno Farache
66   *
67   */
68  public class ExportPageAction extends PortletAction {
69  
70      public void processAction(
71              ActionMapping mapping, ActionForm form, PortletConfig portletConfig,
72              ActionRequest actionRequest, ActionResponse actionResponse)
73          throws Exception {
74  
75          try {
76              long nodeId = ParamUtil.getLong(actionRequest, "nodeId");
77              String nodeName = ParamUtil.getString(actionRequest, "nodeName");
78              String title = ParamUtil.getString(actionRequest, "title");
79              double version = ParamUtil.getDouble(actionRequest, "version");
80  
81              String targetExtension = ParamUtil.getString(
82                  actionRequest, "targetExtension");
83  
84              ThemeDisplay themeDisplay =
85                  (ThemeDisplay)actionRequest.getAttribute(WebKeys.THEME_DISPLAY);
86  
87              PortletURL viewPageURL = new PortletURLImpl(
88                  (ActionRequestImpl)actionRequest,
89                  portletConfig.getPortletName(), themeDisplay.getPlid(),
90                  PortletRequest.RENDER_PHASE);
91  
92              viewPageURL.setPortletMode(PortletMode.VIEW);
93              viewPageURL.setWindowState(WindowState.MAXIMIZED);
94              viewPageURL.setParameter("struts_action", "/wiki/view");
95              viewPageURL.setParameter("nodeName", nodeName);
96              viewPageURL.setParameter("title", title);
97  
98              PortletURL editPageURL = new PortletURLImpl(
99                  (ActionRequestImpl)actionRequest,
100                 portletConfig.getPortletName(), themeDisplay.getPlid(),
101                 PortletRequest.RENDER_PHASE);
102 
103             editPageURL.setPortletMode(PortletMode.VIEW);
104             editPageURL.setWindowState(WindowState.MAXIMIZED);
105             editPageURL.setParameter("struts_action", "/wiki/edit_page");
106             editPageURL.setParameter("nodeId", String.valueOf(nodeId));
107             editPageURL.setParameter("title", title);
108 
109             HttpServletRequest request = PortalUtil.getHttpServletRequest(
110                 actionRequest);
111             HttpServletResponse response = PortalUtil.getHttpServletResponse(
112                 actionResponse);
113 
114             getFile(
115                 nodeId, title, version, targetExtension, viewPageURL,
116                 editPageURL, themeDisplay, request, response);
117 
118             setForward(actionRequest, ActionConstants.COMMON_NULL);
119         }
120         catch (Exception e) {
121             PortalUtil.sendError(e, actionRequest, actionResponse);
122         }
123     }
124 
125     protected void getFile(
126             long nodeId, String title, double version, String targetExtension,
127             PortletURL viewPageURL, PortletURL editPageURL,
128             ThemeDisplay themeDisplay, HttpServletRequest request,
129             HttpServletResponse response)
130         throws Exception {
131 
132         InputStream is = null;
133 
134         try {
135             WikiPage page = WikiPageServiceUtil.getPage(nodeId, title, version);
136 
137             String content = page.getContent();
138 
139             String attachmentURLPrefix =
140                 themeDisplay.getPathMain() + "/wiki/get_page_attachment?" +
141                     "p_l_id=" + themeDisplay.getPlid() + "&nodeId=" + nodeId +
142                         "&title=" + HttpUtil.encodeURL(title) + "&fileName=";
143 
144             try {
145                 content = WikiUtil.convert(
146                     page, viewPageURL, editPageURL, attachmentURLPrefix);
147             }
148             catch (Exception e) {
149                 _log.error(
150                     "Error formatting the wiki page " + page.getPageId() +
151                         " with the format " + page.getFormat(), e);
152             }
153 
154             StringBuilder sb = new StringBuilder();
155 
156             sb.append("<h1>");
157             sb.append(title);
158             sb.append("</h1>");
159             sb.append(content);
160 
161             is = new ByteArrayInputStream(
162                 sb.toString().getBytes(StringPool.UTF8));
163 
164             String sourceExtension = "html";
165 
166             sb = new StringBuilder();
167 
168             sb.append(title);
169             sb.append(StringPool.PERIOD);
170             sb.append(sourceExtension);
171 
172             String fileName = sb.toString();
173 
174             if (Validator.isNotNull(targetExtension)) {
175                 String id = page.getUuid();
176 
177                 InputStream convertedIS = DocumentConversionUtil.convert(
178                     id, is, sourceExtension, targetExtension);
179 
180                 if ((convertedIS != null) && (convertedIS != is)) {
181                     sb = new StringBuilder();
182 
183                     sb.append(title);
184                     sb.append(StringPool.PERIOD);
185                     sb.append(targetExtension);
186 
187                     fileName = sb.toString();
188 
189                     is = convertedIS;
190                 }
191             }
192 
193             String contentType = MimeTypesUtil.getContentType(fileName);
194 
195             ServletResponseUtil.sendFile(response, fileName, is, contentType);
196         }
197         catch (Exception e) {
198             _log.error(e, e);
199         }
200         finally {
201             ServletResponseUtil.cleanUp(is);
202         }
203     }
204 
205     protected boolean isCheckMethodOnProcessAction() {
206         return _CHECK_METHOD_ON_PROCESS_ACTION;
207     }
208 
209     private static final boolean _CHECK_METHOD_ON_PROCESS_ACTION = false;
210 
211     private static Log _log = LogFactory.getLog(ExportPageAction.class);
212 
213 }