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.PortalUtil;
31  import com.liferay.portal.util.WebKeys;
32  import com.liferay.portlet.blogs.service.BlogsEntryServiceUtil;
33  import com.liferay.util.RSSUtil;
34  import com.liferay.util.servlet.ServletResponseUtil;
35  
36  import javax.portlet.ActionRequest;
37  import javax.portlet.ActionResponse;
38  import javax.portlet.PortletConfig;
39  
40  import javax.servlet.http.HttpServletRequest;
41  import javax.servlet.http.HttpServletResponse;
42  
43  import org.apache.struts.action.ActionForm;
44  import org.apache.struts.action.ActionForward;
45  import org.apache.struts.action.ActionMapping;
46  
47  /**
48   * <a href="RSSAction.java.html"><b><i>View Source</i></b></a>
49   *
50   * @author Brian Wing Shun Chan
51   *
52   */
53  public class RSSAction extends PortletAction {
54  
55      public ActionForward strutsExecute(
56              ActionMapping mapping, ActionForm form, HttpServletRequest request,
57              HttpServletResponse response)
58          throws Exception {
59  
60          try {
61              ServletResponseUtil.sendFile(
62                  response, null, getRSS(request), ContentTypes.TEXT_XML_UTF8);
63  
64              return null;
65          }
66          catch (Exception e) {
67              PortalUtil.sendError(e, request, response);
68  
69              return null;
70          }
71      }
72  
73      public void processAction(
74              ActionMapping mapping, ActionForm form, PortletConfig portletConfig,
75              ActionRequest actionRequest, ActionResponse actionResponse)
76          throws Exception {
77  
78          try {
79              HttpServletRequest request = PortalUtil.getHttpServletRequest(
80                  actionRequest);
81              HttpServletResponse response = PortalUtil.getHttpServletResponse(
82                  actionResponse);
83  
84              ServletResponseUtil.sendFile(
85                  response, null, getRSS(request), ContentTypes.TEXT_XML_UTF8);
86  
87              setForward(actionRequest, ActionConstants.COMMON_NULL);
88          }
89          catch (Exception e) {
90              PortalUtil.sendError(e, actionRequest, actionResponse);
91          }
92      }
93  
94      protected byte[] getRSS(HttpServletRequest request) throws Exception {
95          ThemeDisplay themeDisplay = (ThemeDisplay)request.getAttribute(
96              WebKeys.THEME_DISPLAY);
97  
98          Layout layout = themeDisplay.getLayout();
99  
100         long plid = ParamUtil.getLong(request, "p_l_id");
101         long companyId = ParamUtil.getLong(request, "companyId");
102         long groupId = ParamUtil.getLong(request, "groupId");
103         long organizationId = ParamUtil.getLong(request, "organizationId");
104         int max = ParamUtil.getInteger(
105             request, "max", SearchContainer.DEFAULT_DELTA);
106         String type = ParamUtil.getString(
107             request, "type", RSSUtil.DEFAULT_TYPE);
108         double version = ParamUtil.getDouble(
109             request, "version", RSSUtil.DEFAULT_VERSION);
110         String displayStyle = ParamUtil.getString(
111             request, "displayStyle", RSSUtil.DISPLAY_STYLE_FULL_CONTENT);
112 
113         String feedURL =
114             themeDisplay.getURLPortal() + themeDisplay.getPathMain() +
115                 "/blogs/find_entry?";
116 
117         String entryURL = feedURL;
118 
119         String rss = StringPool.BLANK;
120 
121         if (companyId > 0) {
122             feedURL = StringPool.BLANK;
123 
124             rss = BlogsEntryServiceUtil.getCompanyEntriesRSS(
125                 companyId, max, type, version, displayStyle, feedURL, entryURL,
126                 themeDisplay);
127         }
128         else if (groupId > 0) {
129             feedURL += "p_l_id=" + plid;
130 
131             entryURL = feedURL;
132 
133             rss = BlogsEntryServiceUtil.getGroupEntriesRSS(
134                 groupId, max, type, version, displayStyle, feedURL, entryURL,
135                 themeDisplay);
136         }
137         else if (organizationId > 0) {
138             feedURL = StringPool.BLANK;
139 
140             rss = BlogsEntryServiceUtil.getOrganizationEntriesRSS(
141                 organizationId, max, type, version, displayStyle, feedURL,
142                 entryURL, themeDisplay);
143         }
144         else if (layout != null) {
145             groupId = layout.getGroupId();
146 
147             feedURL =
148                 themeDisplay.getURLPortal() +
149                     PortalUtil.getLayoutURL(themeDisplay) + "/-/blogs/rss";
150 
151             entryURL = feedURL;
152 
153             rss = BlogsEntryServiceUtil.getGroupEntriesRSS(
154                 groupId, max, type, version, displayStyle, feedURL, entryURL,
155                 themeDisplay);
156         }
157 
158         return rss.getBytes(StringPool.UTF8);
159     }
160 
161     protected boolean isCheckMethodOnProcessAction() {
162         return _CHECK_METHOD_ON_PROCESS_ACTION;
163     }
164 
165     private static final boolean _CHECK_METHOD_ON_PROCESS_ACTION = false;
166 
167 }