| CaptchaPortalAction.java |
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.util.PropsFiles;
27 import com.liferay.portal.util.WebKeys;
28 import com.liferay.util.ExtPropertiesLoader;
29
30 import java.util.Properties;
31
32 import javax.servlet.http.HttpServletRequest;
33 import javax.servlet.http.HttpServletResponse;
34 import javax.servlet.http.HttpSession;
35 import javax.servlet.jsp.PageContext;
36
37 import nl.captcha.servlet.CaptchaProducer;
38 import nl.captcha.util.Helper;
39
40 import org.apache.struts.action.Action;
41 import org.apache.struts.action.ActionForm;
42 import org.apache.struts.action.ActionForward;
43 import org.apache.struts.action.ActionMapping;
44
45 /**
46 * <a href="CaptchaPortalAction.java.html"><b><i>View Source</i></b></a>
47 *
48 * @author Brian Wing Shun Chan
49 *
50 */
51 public class CaptchaPortalAction extends Action {
52
53 public CaptchaPortalAction() {
54 Properties props = ExtPropertiesLoader.getInstance(
55 PropsFiles.CAPTCHA).getProperties();
56
57 _producer = (CaptchaProducer)Helper.ThingFactory.loadImpl(
58 Helper.ThingFactory.CPROD, props);
59 }
60
61 public ActionForward execute(
62 ActionMapping mapping, ActionForm form, HttpServletRequest req,
63 HttpServletResponse res)
64 throws Exception {
65
66 try {
67 HttpSession ses = req.getSession();
68
69 String captchaText = _producer.createText();
70
71 ses.setAttribute(WebKeys.CAPTCHA_TEXT, captchaText);
72
73 _producer.createImage(res.getOutputStream(), captchaText);
74
75 return null;
76 }
77 catch (Exception e) {
78 req.setAttribute(PageContext.EXCEPTION, e);
79
80 return mapping.findForward(ActionConstants.COMMON_ERROR);
81 }
82 }
83
84 private CaptchaProducer _producer;
85
86 }