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.wiki.engines.jspwiki;
24  
25  import com.ecyrd.jspwiki.WikiContext;
26  import com.ecyrd.jspwiki.WikiException;
27  import com.ecyrd.jspwiki.WikiPage;
28  
29  import com.liferay.portal.SystemException;
30  import com.liferay.portal.kernel.log.Log;
31  import com.liferay.portal.kernel.log.LogFactoryUtil;
32  import com.liferay.portal.kernel.util.StringPool;
33  import com.liferay.portal.kernel.util.Validator;
34  import com.liferay.portlet.wiki.PageContentException;
35  import com.liferay.portlet.wiki.engines.WikiEngine;
36  import com.liferay.portlet.wiki.service.WikiPageLocalServiceUtil;
37  
38  import java.io.ByteArrayInputStream;
39  import java.io.IOException;
40  import java.io.InputStream;
41  
42  import java.util.Collection;
43  import java.util.Collections;
44  import java.util.HashMap;
45  import java.util.Map;
46  import java.util.Properties;
47  
48  import javax.portlet.PortletURL;
49  
50  /**
51   * <a href="JSPWikiEngine.java.html"><b><i>View Source</i></b></a>
52   *
53   * @author Jorge Ferrer
54   *
55   */
56  public class JSPWikiEngine implements WikiEngine {
57  
58      public String convert(
59              com.liferay.portlet.wiki.model.WikiPage page, PortletURL portletURL)
60          throws PageContentException {
61  
62          try {
63              return convert(page);
64          }
65          catch (WikiException we) {
66              throw new PageContentException(we);
67          }
68      }
69  
70      public Map<String, Boolean> getOutgoingLinks(
71              com.liferay.portlet.wiki.model.WikiPage page)
72          throws PageContentException {
73  
74          if (Validator.isNull(page.getContent())) {
75              return Collections.EMPTY_MAP;
76          }
77  
78          try {
79              LiferayJSPWikiEngine engine = getEngine(page.getNodeId());
80  
81              WikiPage jspWikiPage = LiferayPageProvider.toJSPWikiPage(
82                  page, engine);
83  
84              Collection<String> titles = engine.scanWikiLinks(
85                  jspWikiPage, page.getContent());
86  
87              Map<String, Boolean> links = new HashMap<String, Boolean>();
88  
89              for (String title : titles) {
90                  if (title.startsWith("[[")) {
91                      title = title.substring(2);
92                  }
93                  else if (title.startsWith("[")) {
94                      title = title.substring(1);
95                  }
96  
97                  if (title.endsWith("]]")) {
98                      title = title.substring(title.length() - 2, title.length());
99                  }
100                 else if (title.startsWith("[")) {
101                     title = title.substring(title.length() - 1, title.length());
102                 }
103 
104                 Boolean existsObj = links.get(title);
105 
106                 if (existsObj == null) {
107                     if (WikiPageLocalServiceUtil.getPagesCount(
108                             page.getNodeId(), title, true) > 0) {
109 
110                         existsObj = Boolean.TRUE;
111                     }
112                     else {
113                         existsObj = Boolean.FALSE;
114                     }
115 
116                     links.put(title, existsObj);
117                 }
118             }
119 
120             return links;
121         }
122         catch (SystemException se) {
123             throw new PageContentException(se);
124         }
125         catch (WikiException we) {
126             throw new PageContentException(we);
127         }
128     }
129 
130     public void setInterWikiConfiguration(String interWikiConfiguration) {
131     }
132 
133     public void setMainConfiguration(String mainConfiguration) {
134         setProperties(mainConfiguration);
135     }
136 
137     public boolean validate(long nodeId, String newContent) {
138         return true;
139     }
140 
141     protected String convert(com.liferay.portlet.wiki.model.WikiPage page)
142         throws WikiException {
143 
144         String content = page.getContent();
145 
146         if (Validator.isNull(content)) {
147             return StringPool.BLANK;
148         }
149 
150         com.ecyrd.jspwiki.WikiEngine engine = getEngine(page.getNodeId());
151 
152         WikiPage jspWikiPage = LiferayPageProvider.toJSPWikiPage(page, engine);
153 
154         WikiContext wikiContext = new WikiContext(engine, jspWikiPage);
155 
156         return engine.textToHTML(wikiContext, content);
157     }
158 
159     protected LiferayJSPWikiEngine getEngine(long nodeId)
160         throws WikiException {
161 
162         LiferayJSPWikiEngine engine = _engines.get(nodeId);
163 
164         if (engine == null) {
165             Properties nodeProps = new Properties(_props);
166 
167             nodeProps.setProperty("nodeId", String.valueOf(nodeId));
168 
169             String appName = nodeProps.getProperty("jspwiki.applicationName");
170 
171             nodeProps.setProperty(
172                 "jspwiki.applicationName", appName + " for node " + nodeId);
173 
174             engine = new LiferayJSPWikiEngine(nodeProps);
175 
176             _engines.put(nodeId, engine);
177         }
178 
179         return engine;
180     }
181 
182     protected synchronized void setProperties(String configuration) {
183         _props = new Properties();
184 
185         InputStream is = new ByteArrayInputStream(configuration.getBytes());
186 
187         try {
188             _props.load(is);
189         }
190         catch (IOException ioe) {
191             _log.error(ioe, ioe);
192         }
193     }
194 
195     private static Log _log = LogFactoryUtil.getLog(JSPWikiEngine.class);
196 
197     private Properties _props;
198     private Map<Long, LiferayJSPWikiEngine> _engines =
199         new HashMap<Long, LiferayJSPWikiEngine>();
200 
201 }