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.servlet.taglib.portlet;
24  
25  import com.liferay.portal.kernel.util.HttpUtil;
26  import com.liferay.portal.kernel.util.StringMaker;
27  import com.liferay.portal.kernel.util.StringPool;
28  import com.liferay.portal.kernel.util.StringUtil;
29  import com.liferay.portal.kernel.util.Validator;
30  
31  import java.util.StringTokenizer;
32  
33  import javax.portlet.PortletURL;
34  
35  import javax.servlet.jsp.JspException;
36  import javax.servlet.jsp.PageContext;
37  
38  import org.apache.commons.logging.Log;
39  import org.apache.commons.logging.LogFactory;
40  
41  /**
42   * <a href="RenderURLParamsTagUtil.java.html"><b><i>View Source</i></b></a>
43   *
44   * @author Brian Wing Shun Chan
45   *
46   */
47  public class RenderURLParamsTagUtil {
48  
49      public static String doEndTag(String varImpl, PageContext pageContext)
50          throws JspException {
51  
52          try {
53              PortletURL portletURL =
54                  (PortletURL)pageContext.getAttribute(varImpl);
55  
56              String params = StringPool.BLANK;
57  
58              if (portletURL != null) {
59                  params = _toParamsString(portletURL);
60  
61                  pageContext.getOut().print(params);
62              }
63  
64              return params;
65          }
66          catch (Exception e) {
67              _log.error(e, e);
68  
69              throw new JspException(e);
70          }
71      }
72  
73      private static String _toParamsString(PortletURL portletURL)
74          throws Exception {
75  
76          StringMaker sm = new StringMaker();
77  
78          String url = portletURL.toString();
79  
80          String queryString = HttpUtil.getQueryString(url);
81  
82          StringTokenizer st = new StringTokenizer(
83              queryString, StringPool.AMPERSAND);
84  
85          while (st.hasMoreTokens()) {
86              String token = st.nextToken();
87  
88              if (Validator.isNotNull(token)) {
89                  String[] kvp = StringUtil.split(token, StringPool.EQUAL);
90  
91                  if ((kvp != null) && (kvp.length > 0)) {
92                      String key = kvp[0];
93                      String value = StringPool.BLANK;
94  
95                      if (kvp.length > 1) {
96                          value = kvp[1];
97                      }
98  
99                      value = HttpUtil.decodeURL(value);
100 
101                     sm.append("<input name=\"");
102                     sm.append(key);
103                     sm.append("\" type=\"hidden\" value=\"");
104                     sm.append(value);
105                     sm.append("\" />");
106                 }
107             }
108         }
109 
110         return sm.toString();
111     }
112 
113     private static Log _log = LogFactory.getLog(ActionURLTagUtil.class);
114 
115 }