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.portal.events;
24  
25  import com.liferay.portal.kernel.events.Action;
26  import com.liferay.portal.kernel.events.ActionException;
27  import com.liferay.portal.kernel.servlet.BrowserSniffer;
28  import com.liferay.portal.kernel.util.GetterUtil;
29  import com.liferay.portal.kernel.util.Randomizer;
30  import com.liferay.portal.model.ColorScheme;
31  import com.liferay.portal.model.Layout;
32  import com.liferay.portal.model.Theme;
33  import com.liferay.portal.service.LayoutServiceUtil;
34  import com.liferay.portal.service.impl.ThemeLocalUtil;
35  import com.liferay.portal.theme.ThemeDisplay;
36  import com.liferay.portal.util.PropsUtil;
37  import com.liferay.portal.util.WebKeys;
38  
39  import java.util.List;
40  
41  import javax.servlet.http.HttpServletRequest;
42  import javax.servlet.http.HttpServletResponse;
43  
44  import org.apache.commons.logging.Log;
45  import org.apache.commons.logging.LogFactory;
46  
47  /**
48   * <a href="RandomLookAndFeelAction.java.html"><b><i>View Source</i></b></a>
49   *
50   * @author Brian Wing Shun Chan
51   *
52   */
53  public class RandomLookAndFeelAction extends Action {
54  
55      public void run(HttpServletRequest req, HttpServletResponse res)
56          throws ActionException {
57  
58          try {
59  
60              // Disable caching for CSS and JavaScript
61  
62              PropsUtil.set(PropsUtil.LAST_MODIFIED_CHECK, "false");
63  
64              // Do not randomize look and feel unless the user is logged in
65  
66              ThemeDisplay themeDisplay =
67                  (ThemeDisplay)req.getAttribute(WebKeys.THEME_DISPLAY);
68  
69              if (!themeDisplay.isSignedIn()) {
70                  return;
71              }
72  
73              // Do not randomize look and feel unless the user is accessing the
74              // portal
75  
76              String requestURI = GetterUtil.getString(req.getRequestURI());
77  
78              if (!requestURI.endsWith("/portal/layout")) {
79                  return;
80              }
81  
82              // Do not randomize look and feel unless the user is accessing a
83              // personal layout
84  
85              Layout layout = themeDisplay.getLayout();
86  
87              if (layout == null) {
88                  return;
89              }
90  
91              Randomizer randomizer = Randomizer.getInstance();
92  
93              boolean wapTheme = BrowserSniffer.is_wap_xhtml(req);
94  
95              List<Theme> themes = ThemeLocalUtil.getThemes(
96                  themeDisplay.getCompanyId(), themeDisplay.getPortletGroupId(),
97                  themeDisplay.getUserId(), wapTheme);
98  
99              if (themes.size() > 0) {
100                 Theme theme = themes.get(randomizer.nextInt(themes.size()));
101 
102                 List<ColorScheme> colorSchemes = theme.getColorSchemes();
103 
104                 ColorScheme colorScheme = colorSchemes.get(
105                     randomizer.nextInt(colorSchemes.size()));
106 
107                 LayoutServiceUtil.updateLookAndFeel(
108                     layout.getGroupId(), layout.isPrivateLayout(),
109                     layout.getPlid(), theme.getThemeId(),
110                     colorScheme.getColorSchemeId(), layout.getCss(), wapTheme);
111 
112                 themeDisplay.setLookAndFeel(theme, colorScheme);
113 
114                 req.setAttribute(WebKeys.THEME, theme);
115                 req.setAttribute(WebKeys.COLOR_SCHEME, colorScheme);
116             }
117         }
118         catch (Exception e) {
119             _log.error(e, e);
120 
121             throw new ActionException(e);
122         }
123     }
124 
125     private static Log _log = LogFactory.getLog(RandomLookAndFeelAction.class);
126 
127 }