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.util.PortalUtil; 26 import com.liferay.portal.util.WebKeys; 27 28 import javax.servlet.http.HttpServletRequest; 29 import javax.servlet.http.HttpServletResponse; 30 import javax.servlet.http.HttpSession; 31 32 import nl.captcha.servlet.CaptchaProducer; 33 34 import org.apache.struts.action.Action; 35 import org.apache.struts.action.ActionForm; 36 import org.apache.struts.action.ActionForward; 37 import org.apache.struts.action.ActionMapping; 38 39 /** 40 * <a href="CaptchaPortalAction.java.html"><b><i>View Source</i></b></a> 41 * 42 * @author Brian Wing Shun Chan 43 * 44 */ 45 public class CaptchaPortalAction extends Action { 46 47 public ActionForward execute( 48 ActionMapping mapping, ActionForm form, HttpServletRequest request, 49 HttpServletResponse response) 50 throws Exception { 51 52 try { 53 HttpSession session = request.getSession(); 54 55 CaptchaProducer captchaProducer = CaptchaUtil.getCaptchaProducer(); 56 57 String captchaText = captchaProducer.createText(); 58 59 session.setAttribute(WebKeys.CAPTCHA_TEXT, captchaText); 60 61 captchaProducer.createImage( 62 response.getOutputStream(), captchaText); 63 64 return null; 65 } 66 catch (Exception e) { 67 PortalUtil.sendError(e, request, response); 68 69 return null; 70 } 71 } 72 73 }