001    /**
002     * Copyright (c) 2000-2010 Liferay, Inc. All rights reserved.
003     *
004     * This library is free software; you can redistribute it and/or modify it under
005     * the terms of the GNU Lesser General Public License as published by the Free
006     * Software Foundation; either version 2.1 of the License, or (at your option)
007     * any later version.
008     *
009     * This library is distributed in the hope that it will be useful, but WITHOUT
010     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
011     * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
012     * details.
013     */
014    
015    package com.liferay.portal.kernel.captcha;
016    
017    import java.io.IOException;
018    
019    import javax.portlet.PortletRequest;
020    import javax.portlet.PortletResponse;
021    
022    import javax.servlet.http.HttpServletRequest;
023    import javax.servlet.http.HttpServletResponse;
024    
025    /**
026     * @author Brian Wing Shun Chan
027     */
028    public class CaptchaUtil {
029    
030            public static void check(HttpServletRequest request)
031                    throws CaptchaTextException {
032    
033                    getCaptcha().check(request);
034            }
035    
036            public static void check(PortletRequest portletRequest)
037                    throws CaptchaTextException {
038    
039                    getCaptcha().check(portletRequest);
040            }
041    
042            public static Captcha getCaptcha() {
043                    return _captcha;
044            }
045    
046            public static String getTaglibPath() {
047                    return getCaptcha().getTaglibPath();
048            }
049    
050            public static boolean isEnabled(HttpServletRequest request) {
051                    return getCaptcha().isEnabled(request);
052            }
053    
054            public static boolean isEnabled(PortletRequest portletRequest) {
055                    return getCaptcha().isEnabled(portletRequest);
056            }
057    
058            public static void serveImage(
059                            HttpServletRequest request, HttpServletResponse response)
060                    throws IOException {
061    
062                    getCaptcha().serveImage(request, response);
063            }
064    
065            public static void serveImage(
066                            PortletRequest portletRequest, PortletResponse portletResponse)
067                    throws IOException {
068    
069                    getCaptcha().serveImage(portletRequest, portletResponse);
070            }
071    
072            public void setCaptcha(Captcha captcha) {
073                    _captcha = captcha;
074            }
075    
076            private static Captcha _captcha;
077    
078    }