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.captcha;
24  
25  import com.liferay.portal.struts.ActionConstants;
26  import com.liferay.portal.struts.PortletAction;
27  import com.liferay.portal.util.PortalUtil;
28  import com.liferay.portal.util.WebKeys;
29  
30  import javax.portlet.ActionRequest;
31  import javax.portlet.ActionResponse;
32  import javax.portlet.PortletConfig;
33  import javax.portlet.PortletSession;
34  
35  import javax.servlet.http.HttpServletResponse;
36  
37  import nl.captcha.servlet.CaptchaProducer;
38  
39  import org.apache.commons.logging.Log;
40  import org.apache.commons.logging.LogFactory;
41  import org.apache.struts.action.ActionForm;
42  import org.apache.struts.action.ActionMapping;
43  
44  /**
45   * <a href="CaptchaPortletAction.java.html"><b><i>View Source</i></b></a>
46   *
47   * @author Brian Wing Shun Chan
48   *
49   */
50  public class CaptchaPortletAction extends PortletAction {
51  
52      public void processAction(
53              ActionMapping mapping, ActionForm form, PortletConfig portletConfig,
54              ActionRequest actionRequest, ActionResponse actionResponse)
55          throws Exception {
56  
57          try {
58              PortletSession portletSession = actionRequest.getPortletSession();
59  
60              CaptchaProducer captchaProducer = CaptchaUtil.getCaptchaProducer();
61  
62              String captchaText = captchaProducer.createText();
63  
64              portletSession.setAttribute(WebKeys.CAPTCHA_TEXT, captchaText);
65  
66              HttpServletResponse response = PortalUtil.getHttpServletResponse(
67                  actionResponse);
68  
69              captchaProducer.createImage(
70                  response.getOutputStream(), captchaText);
71  
72              setForward(actionRequest, ActionConstants.COMMON_NULL);
73          }
74          catch (Exception e) {
75              _log.error(e);
76          }
77      }
78  
79      protected boolean isCheckMethodOnProcessAction() {
80          return _CHECK_METHOD_ON_PROCESS_ACTION;
81      }
82  
83      private static final boolean _CHECK_METHOD_ON_PROCESS_ACTION = false;
84  
85      private static Log _log = LogFactory.getLog(CaptchaPortletAction.class);
86  
87  }