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