1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    *
5    *
6    *
7    * The contents of this file are subject to the terms of the Liferay Enterprise
8    * Subscription License ("License"). You may not use this file except in
9    * compliance with the License. You can obtain a copy of the License by
10   * contacting Liferay, Inc. See the License for the specific language governing
11   * permissions and limitations under the License, including but not limited to
12   * distribution rights 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.security;
24  
25  import com.liferay.portal.kernel.util.HttpUtil;
26  import com.liferay.portal.kernel.util.Validator;
27  import com.liferay.portal.model.Company;
28  import com.liferay.portal.theme.ThemeDisplay;
29  import com.liferay.portal.util.PropsValues;
30  import com.liferay.portal.util.WebKeys;
31  import com.liferay.util.Encryptor;
32  
33  import javax.servlet.http.HttpServletRequest;
34  import javax.servlet.jsp.JspException;
35  import javax.servlet.jsp.PageContext;
36  import javax.servlet.jsp.tagext.TagSupport;
37  
38  /**
39   * <a href="DoAsURLTagUtil.java.html"><b><i>View Source</i></b></a>
40   *
41   * @author Brian Wing Shun Chan
42   */
43  public class DoAsURLTagUtil extends TagSupport {
44  
45      public static String doEndTag(
46              long doAsUserId, String var, boolean writeOutput,
47              PageContext pageContext)
48          throws JspException {
49  
50          try {
51              HttpServletRequest request =
52                  (HttpServletRequest)pageContext.getRequest();
53  
54              ThemeDisplay themeDisplay = (ThemeDisplay)request.getAttribute(
55                  WebKeys.THEME_DISPLAY);
56  
57              Company company = themeDisplay.getCompany();
58  
59              String doAsURL = company.getHomeURL();
60  
61              if (Validator.isNull(doAsURL)) {
62                  doAsURL = PropsValues.COMPANY_DEFAULT_HOME_URL;
63              }
64  
65              if (doAsUserId <= 0) {
66                  doAsUserId = company.getDefaultUser().getUserId();
67              }
68  
69              String encDoAsUserId = Encryptor.encrypt(
70                  company.getKeyObj(), String.valueOf(doAsUserId));
71  
72              doAsURL = HttpUtil.addParameter(
73                  doAsURL, "doAsUserId", encDoAsUserId);
74  
75              if (Validator.isNotNull(var)) {
76                  pageContext.setAttribute(var, doAsURL);
77              }
78              else if (writeOutput) {
79                  pageContext.getOut().print(doAsURL);
80              }
81  
82              return doAsURL;
83          }
84          catch (Exception e) {
85              throw new JspException(e);
86          }
87      }
88  
89  }