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.BrowserSnifferUtil;
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.ThemeLocalServiceUtil;
35  import com.liferay.portal.theme.ThemeDisplay;
36  import com.liferay.portal.util.PropsKeys;
37  import com.liferay.portal.util.PropsUtil;
38  import com.liferay.portal.util.WebKeys;
39  
40  import java.util.List;
41  
42  import javax.servlet.http.HttpServletRequest;
43  import javax.servlet.http.HttpServletResponse;
44  
45  import org.apache.commons.logging.Log;
46  import org.apache.commons.logging.LogFactory;
47  
48  /**
49   * <a href="RandomLookAndFeelAction.java.html"><b><i>View Source</i></b></a>
50   *
51   * @author Brian Wing Shun Chan
52   *
53   */
54  public class RandomLookAndFeelAction extends Action {
55  
56      public void run(HttpServletRequest request, HttpServletResponse response)
57          throws ActionException {
58  
59          try {
60  
61              // Disable caching for CSS and JavaScript
62  
63              PropsUtil.set(PropsKeys.LAST_MODIFIED_CHECK, "false");
64  
65              // Do not randomize look and feel unless the user is logged in
66  
67              ThemeDisplay themeDisplay = (ThemeDisplay)request.getAttribute(
68                  WebKeys.THEME_DISPLAY);
69  
70              if (!themeDisplay.isSignedIn()) {
71                  return;
72              }
73  
74              // Do not randomize look and feel unless the user is accessing the
75              // portal
76  
77              String requestURI = GetterUtil.getString(request.getRequestURI());
78  
79              if (!requestURI.endsWith("/portal/layout")) {
80                  return;
81              }
82  
83              // Do not randomize look and feel unless the user is accessing a
84              // personal layout
85  
86              Layout layout = themeDisplay.getLayout();
87  
88              if (layout == null) {
89                  return;
90              }
91  
92              Randomizer randomizer = Randomizer.getInstance();
93  
94              boolean wapTheme = BrowserSnifferUtil.is_wap(request);
95  
96              List<Theme> themes = ThemeLocalServiceUtil.getThemes(
97                  themeDisplay.getCompanyId(), themeDisplay.getPortletGroupId(),
98                  themeDisplay.getUserId(), wapTheme);
99  
100             if (themes.size() > 0) {
101                 Theme theme = themes.get(randomizer.nextInt(themes.size()));
102 
103                 List<ColorScheme> colorSchemes = theme.getColorSchemes();
104 
105                 ColorScheme colorScheme = colorSchemes.get(
106                     randomizer.nextInt(colorSchemes.size()));
107 
108                 LayoutServiceUtil.updateLookAndFeel(
109                     layout.getGroupId(), layout.isPrivateLayout(),
110                     layout.getPlid(), theme.getThemeId(),
111                     colorScheme.getColorSchemeId(), layout.getCss(), wapTheme);
112 
113                 themeDisplay.setLookAndFeel(theme, colorScheme);
114 
115                 request.setAttribute(WebKeys.THEME, theme);
116                 request.setAttribute(WebKeys.COLOR_SCHEME, colorScheme);
117             }
118         }
119         catch (Exception e) {
120             _log.error(e, e);
121 
122             throw new ActionException(e);
123         }
124     }
125 
126     private static Log _log = LogFactory.getLog(RandomLookAndFeelAction.class);
127 
128 }