1   /**
2    * Copyright (c) 2000-2009 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.log.Log;
26  import com.liferay.portal.kernel.log.LogFactoryUtil;
27  import com.liferay.portal.kernel.util.HttpUtil;
28  import com.liferay.portal.kernel.util.StringPool;
29  import com.liferay.portal.kernel.util.StringUtil;
30  import com.liferay.portal.kernel.util.Validator;
31  
32  import java.util.StringTokenizer;
33  
34  import javax.portlet.PortletURL;
35  
36  import javax.servlet.jsp.JspException;
37  import javax.servlet.jsp.PageContext;
38  
39  /**
40   * <a href="RenderURLParamsTagUtil.java.html"><b><i>View Source</i></b></a>
41   *
42   * @author Brian Wing Shun Chan
43   *
44   */
45  public class RenderURLParamsTagUtil {
46  
47      public static String doEndTag(String varImpl, PageContext pageContext)
48          throws JspException {
49  
50          try {
51              PortletURL portletURL =
52                  (PortletURL)pageContext.getAttribute(varImpl);
53  
54              String params = StringPool.BLANK;
55  
56              if (portletURL != null) {
57                  params = _toParamsString(portletURL);
58  
59                  pageContext.getOut().print(params);
60              }
61  
62              return params;
63          }
64          catch (Exception e) {
65              _log.error(e, e);
66  
67              throw new JspException(e);
68          }
69      }
70  
71      private static String _toParamsString(PortletURL portletURL)
72          throws Exception {
73  
74          StringBuilder sb = new StringBuilder();
75  
76          String url = portletURL.toString();
77  
78          String queryString = HttpUtil.getQueryString(url);
79  
80          StringTokenizer st = new StringTokenizer(
81              queryString, StringPool.AMPERSAND);
82  
83          while (st.hasMoreTokens()) {
84              String token = st.nextToken();
85  
86              if (Validator.isNotNull(token)) {
87                  String[] kvp = StringUtil.split(token, StringPool.EQUAL);
88  
89                  if ((kvp != null) && (kvp.length > 0)) {
90                      String key = kvp[0];
91                      String value = StringPool.BLANK;
92  
93                      if (kvp.length > 1) {
94                          value = kvp[1];
95                      }
96  
97                      value = HttpUtil.decodeURL(value);
98  
99                      sb.append("<input name=\"");
100                     sb.append(key);
101                     sb.append("\" type=\"hidden\" value=\"");
102                     sb.append(value);
103                     sb.append("\" />");
104                 }
105             }
106         }
107 
108         return sb.toString();
109     }
110 
111     private static Log _log = LogFactoryUtil.getLog(ActionURLTagUtil.class);
112 
113 }