1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    * The contents of this file are subject to the terms of the Liferay Enterprise
5    * Subscription License ("License"). You may not use this file except in
6    * compliance with the License. You can obtain a copy of the License by
7    * contacting Liferay, Inc. See the License for the specific language governing
8    * permissions and limitations under the License, including but not limited to
9    * distribution rights of the Software.
10   *
11   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
12   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
13   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
14   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
15   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
16   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
17   * SOFTWARE.
18   */
19  
20  package com.liferay.portlet.blogs.action;
21  
22  import com.liferay.portal.kernel.dao.search.SearchContainer;
23  import com.liferay.portal.kernel.util.ContentTypes;
24  import com.liferay.portal.kernel.util.ParamUtil;
25  import com.liferay.portal.kernel.util.StringPool;
26  import com.liferay.portal.model.Layout;
27  import com.liferay.portal.struts.ActionConstants;
28  import com.liferay.portal.struts.PortletAction;
29  import com.liferay.portal.theme.ThemeDisplay;
30  import com.liferay.portal.util.Portal;
31  import com.liferay.portal.util.PortalUtil;
32  import com.liferay.portal.util.WebKeys;
33  import com.liferay.portlet.blogs.service.BlogsEntryServiceUtil;
34  import com.liferay.util.RSSUtil;
35  import com.liferay.util.servlet.ServletResponseUtil;
36  
37  import javax.portlet.ActionRequest;
38  import javax.portlet.ActionResponse;
39  import javax.portlet.PortletConfig;
40  
41  import javax.servlet.http.HttpServletRequest;
42  import javax.servlet.http.HttpServletResponse;
43  
44  import org.apache.struts.action.ActionForm;
45  import org.apache.struts.action.ActionForward;
46  import org.apache.struts.action.ActionMapping;
47  
48  /**
49   * <a href="RSSAction.java.html"><b><i>View Source</i></b></a>
50   *
51   * @author Brian Wing Shun Chan
52   *
53   */
54  public class RSSAction extends PortletAction {
55  
56      public ActionForward strutsExecute(
57              ActionMapping mapping, ActionForm form, HttpServletRequest request,
58              HttpServletResponse response)
59          throws Exception {
60  
61          try {
62              ServletResponseUtil.sendFile(
63                  response, null, getRSS(request), ContentTypes.TEXT_XML_UTF8);
64  
65              return null;
66          }
67          catch (Exception e) {
68              PortalUtil.sendError(e, request, response);
69  
70              return null;
71          }
72      }
73  
74      public void processAction(
75              ActionMapping mapping, ActionForm form, PortletConfig portletConfig,
76              ActionRequest actionRequest, ActionResponse actionResponse)
77          throws Exception {
78  
79          try {
80              HttpServletRequest request = PortalUtil.getHttpServletRequest(
81                  actionRequest);
82              HttpServletResponse response = PortalUtil.getHttpServletResponse(
83                  actionResponse);
84  
85              ServletResponseUtil.sendFile(
86                  response, null, getRSS(request), ContentTypes.TEXT_XML_UTF8);
87  
88              setForward(actionRequest, ActionConstants.COMMON_NULL);
89          }
90          catch (Exception e) {
91              PortalUtil.sendError(e, actionRequest, actionResponse);
92          }
93      }
94  
95      protected byte[] getRSS(HttpServletRequest request) throws Exception {
96          ThemeDisplay themeDisplay = (ThemeDisplay)request.getAttribute(
97              WebKeys.THEME_DISPLAY);
98  
99          Layout layout = themeDisplay.getLayout();
100 
101         long plid = ParamUtil.getLong(request, "p_l_id");
102         long companyId = ParamUtil.getLong(request, "companyId");
103         long groupId = ParamUtil.getLong(request, "groupId");
104         long organizationId = ParamUtil.getLong(request, "organizationId");
105         int max = ParamUtil.getInteger(
106             request, "max", SearchContainer.DEFAULT_DELTA);
107         String type = ParamUtil.getString(
108             request, "type", RSSUtil.DEFAULT_TYPE);
109         double version = ParamUtil.getDouble(
110             request, "version", RSSUtil.DEFAULT_VERSION);
111         String displayStyle = ParamUtil.getString(
112             request, "displayStyle", RSSUtil.DISPLAY_STYLE_FULL_CONTENT);
113 
114         String feedURL =
115             themeDisplay.getURLPortal() + themeDisplay.getPathMain() +
116                 "/blogs/find_entry?";
117 
118         String entryURL = feedURL;
119 
120         String rss = StringPool.BLANK;
121 
122         if (companyId > 0) {
123             feedURL = StringPool.BLANK;
124 
125             rss = BlogsEntryServiceUtil.getCompanyEntriesRSS(
126                 companyId, max, type, version, displayStyle, feedURL, entryURL,
127                 themeDisplay);
128         }
129         else if (groupId > 0) {
130             feedURL += "p_l_id=" + plid;
131 
132             entryURL = feedURL;
133 
134             rss = BlogsEntryServiceUtil.getGroupEntriesRSS(
135                 groupId, max, type, version, displayStyle, feedURL, entryURL,
136                 themeDisplay);
137         }
138         else if (organizationId > 0) {
139             feedURL = StringPool.BLANK;
140 
141             rss = BlogsEntryServiceUtil.getOrganizationEntriesRSS(
142                 organizationId, max, type, version, displayStyle, feedURL,
143                 entryURL, themeDisplay);
144         }
145         else if (layout != null) {
146             if (layout.hasScopeGroup()) {
147                 groupId = layout.getScopeGroup().getGroupId();
148             }
149             else {
150                 groupId = layout.getGroupId();
151             }
152 
153             feedURL =
154                 themeDisplay.getURLPortal() +
155                     PortalUtil.getLayoutURL(themeDisplay) +
156                         Portal.FRIENDLY_URL_SEPARATOR + "blogs/rss";
157 
158             entryURL = feedURL;
159 
160             rss = BlogsEntryServiceUtil.getGroupEntriesRSS(
161                 groupId, max, type, version, displayStyle, feedURL, entryURL,
162                 themeDisplay);
163         }
164 
165         return rss.getBytes(StringPool.UTF8);
166     }
167 
168     protected boolean isCheckMethodOnProcessAction() {
169         return _CHECK_METHOD_ON_PROCESS_ACTION;
170     }
171 
172     private static final boolean _CHECK_METHOD_ON_PROCESS_ACTION = false;
173 
174 }