001    /**
002     * Copyright (c) 2000-2013 Liferay, Inc. All rights reserved.
003     *
004     * This library is free software; you can redistribute it and/or modify it under
005     * the terms of the GNU Lesser General Public License as published by the Free
006     * Software Foundation; either version 2.1 of the License, or (at your option)
007     * any later version.
008     *
009     * This library is distributed in the hope that it will be useful, but WITHOUT
010     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
011     * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
012     * details.
013     */
014    
015    package com.liferay.portlet.wiki.action;
016    
017    import com.liferay.portal.kernel.dao.search.SearchContainer;
018    import com.liferay.portal.kernel.util.GetterUtil;
019    import com.liferay.portal.kernel.util.ParamUtil;
020    import com.liferay.portal.kernel.util.StringBundler;
021    import com.liferay.portal.kernel.util.StringPool;
022    import com.liferay.portal.kernel.util.Validator;
023    import com.liferay.portal.service.PortletPreferencesLocalServiceUtil;
024    import com.liferay.portal.theme.ThemeDisplay;
025    import com.liferay.portal.util.Portal;
026    import com.liferay.portal.util.PortalUtil;
027    import com.liferay.portal.util.PortletKeys;
028    import com.liferay.portal.util.WebKeys;
029    import com.liferay.portlet.wiki.service.WikiPageServiceUtil;
030    import com.liferay.portlet.wiki.util.WikiUtil;
031    import com.liferay.util.RSSUtil;
032    
033    import java.util.Locale;
034    
035    import javax.portlet.PortletPreferences;
036    
037    import javax.servlet.http.HttpServletRequest;
038    
039    /**
040     * @author Jorge Ferrer
041     */
042    public class RSSAction extends com.liferay.portal.struts.RSSAction {
043    
044            @Override
045            protected byte[] getRSS(HttpServletRequest request) throws Exception {
046                    ThemeDisplay themeDisplay = (ThemeDisplay)request.getAttribute(
047                            WebKeys.THEME_DISPLAY);
048    
049                    long companyId = ParamUtil.getLong(request, "companyId");
050                    long nodeId = ParamUtil.getLong(request, "nodeId");
051                    String title = ParamUtil.getString(request, "title");
052                    int max = ParamUtil.getInteger(
053                            request, "max", SearchContainer.DEFAULT_DELTA);
054                    String type = ParamUtil.getString(
055                            request, "type", RSSUtil.FORMAT_DEFAULT);
056                    double version = ParamUtil.getDouble(
057                            request, "version", RSSUtil.VERSION_DEFAULT);
058                    String displayStyle = ParamUtil.getString(
059                            request, "displayStyle", RSSUtil.DISPLAY_STYLE_DEFAULT);
060    
061                    String layoutFullURL = PortalUtil.getLayoutFullURL(
062                            themeDisplay.getScopeGroupId(), PortletKeys.WIKI);
063    
064                    StringBundler sb = new StringBundler(4);
065    
066                    sb.append(layoutFullURL);
067                    sb.append(Portal.FRIENDLY_URL_SEPARATOR);
068                    sb.append("wiki/");
069                    sb.append(nodeId);
070    
071                    String feedURL = sb.toString();
072    
073                    String entryURL = feedURL + StringPool.SLASH + title;
074    
075                    Locale locale = themeDisplay.getLocale();
076    
077                    String rss = StringPool.BLANK;
078    
079                    if (nodeId > 0) {
080                            String attachmentURLPrefix = WikiUtil.getAttachmentURLPrefix(
081                                    themeDisplay.getPathMain(), themeDisplay.getPlid(), nodeId,
082                                    title);
083    
084                            if (Validator.isNotNull(title)) {
085                                    rss = WikiPageServiceUtil.getPagesRSS(
086                                            companyId, nodeId, title, max, type, version, displayStyle,
087                                            feedURL, entryURL, attachmentURLPrefix, locale);
088                            }
089                            else {
090                                    rss = WikiPageServiceUtil.getNodePagesRSS(
091                                            nodeId, max, type, version, displayStyle, feedURL, entryURL,
092                                            attachmentURLPrefix);
093                            }
094                    }
095    
096                    return rss.getBytes(StringPool.UTF8);
097            }
098    
099            protected boolean isRSSFeedsEnabled(HttpServletRequest request)
100                    throws Exception {
101    
102                    if (!super.isRSSFeedsEnabled(request)) {
103                            return false;
104                    }
105    
106                    ThemeDisplay themeDisplay = (ThemeDisplay)request.getAttribute(
107                            WebKeys.THEME_DISPLAY);
108    
109                    PortletPreferences portletPreferences =
110                            PortletPreferencesLocalServiceUtil.getPreferences(
111                                    themeDisplay.getCompanyId(), PortletKeys.PREFS_OWNER_ID_DEFAULT,
112                                    PortletKeys.PREFS_OWNER_TYPE_LAYOUT, themeDisplay.getPlid(),
113                                    PortletKeys.WIKI, null);
114    
115                    if (portletPreferences != null) {
116                            return GetterUtil.getBoolean(
117                                    portletPreferences.getValue("enableRss", null), true);
118                    }
119    
120                    return true;
121            }
122    
123    }