01: /**
02: * Copyright (c) 2000-2008 Liferay, Inc. All rights reserved.
03: *
04: * Permission is hereby granted, free of charge, to any person obtaining a copy
05: * of this software and associated documentation files (the "Software"), to deal
06: * in the Software without restriction, including without limitation the rights
07: * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
08: * copies of the Software, and to permit persons to whom the Software is
09: * 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: */package com.liferay.portal.captcha;
22:
23: import com.liferay.portal.struts.ActionConstants;
24: import com.liferay.portal.util.PropsFiles;
25: import com.liferay.portal.util.WebKeys;
26: import com.liferay.util.ExtPropertiesLoader;
27:
28: import java.util.Properties;
29:
30: import javax.servlet.http.HttpServletRequest;
31: import javax.servlet.http.HttpServletResponse;
32: import javax.servlet.http.HttpSession;
33: import javax.servlet.jsp.PageContext;
34:
35: import nl.captcha.servlet.CaptchaProducer;
36: import nl.captcha.util.Helper;
37:
38: import org.apache.struts.action.Action;
39: import org.apache.struts.action.ActionForm;
40: import org.apache.struts.action.ActionForward;
41: import org.apache.struts.action.ActionMapping;
42:
43: /**
44: * <a href="CaptchaPortalAction.java.html"><b><i>View Source</i></b></a>
45: *
46: * @author Brian Wing Shun Chan
47: *
48: */
49: public class CaptchaPortalAction extends Action {
50:
51: public CaptchaPortalAction() {
52: Properties props = ExtPropertiesLoader.getInstance(
53: PropsFiles.CAPTCHA).getProperties();
54:
55: _producer = (CaptchaProducer) Helper.ThingFactory.loadImpl(
56: Helper.ThingFactory.CPROD, props);
57: }
58:
59: public ActionForward execute(ActionMapping mapping,
60: ActionForm form, HttpServletRequest req,
61: HttpServletResponse res) throws Exception {
62:
63: try {
64: HttpSession ses = req.getSession();
65:
66: String captchaText = _producer.createText();
67:
68: ses.setAttribute(WebKeys.CAPTCHA_TEXT, captchaText);
69:
70: _producer.createImage(res.getOutputStream(), captchaText);
71:
72: return null;
73: } catch (Exception e) {
74: req.setAttribute(PageContext.EXCEPTION, e);
75:
76: return mapping.findForward(ActionConstants.COMMON_ERROR);
77: }
78: }
79:
80: private CaptchaProducer _producer;
81:
82: }
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