/* * WANDORA * Knowledge Extraction, Management, and Publishing Application * http://wandora.org * * Copyright (C) 2004-2016 Wandora Team * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. * */package org.wandora.modules.servlet; import java.io.IOException; import java.util.Collection; import java.util.HashMap; import javax.servlet.ServletException; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import net.tanesha.recaptcha.ReCaptcha; import net.tanesha.recaptcha.ReCaptchaFactory; import net.tanesha.recaptcha.ReCaptchaImpl; import net.tanesha.recaptcha.ReCaptchaResponse; import org.wandora.modules.Module; import org.wandora.modules.ModuleException; import org.wandora.modules.ModuleManager; import org.wandora.modules.usercontrol.User; /** * * @author olli */ public class RecaptchaAction extends AbstractAction { protected String privateKey; protected String publicKey; protected AbstractAction errorAction; protected String errorActionName; protected AbstractAction successAction; protected String successActionName; public ReCaptcha makeReCaptcha(){ return ReCaptchaFactory.newReCaptcha(publicKey, privateKey, false); } public String createFormHtml(){ ReCaptcha rc=makeReCaptcha(); return rc.createRecaptchaHtml(null, null); } @Override public Collection<Module> getDependencies(ModuleManager manager) throws ModuleException { Collection<Module> deps=super.getDependencies(manager); if(errorActionName!=null) manager.requireModule(this, errorActionName, AbstractAction.class, deps); if(successActionName!=null) manager.requireModule(this, successActionName, AbstractAction.class, deps); return deps; } @Override public void stop(ModuleManager manager) { errorAction=null; successAction=null; super.stop(manager); } @Override public void start(ModuleManager manager) throws ModuleException { if(publicKey==null) throw new ModuleException("publicKey is null"); if(privateKey==null) throw new ModuleException("privateKey is null"); if(errorActionName!=null) errorAction=manager.findModule(this, errorActionName, AbstractAction.class); if(successActionName!=null) successAction=manager.findModule(this, successActionName, AbstractAction.class); super.start(manager); } @Override public void init(ModuleManager manager, HashMap<String, Object> settings) throws ModuleException { Object o=settings.get("privateKey"); if(o!=null) privateKey=o.toString().trim(); o=settings.get("publicKey"); if(o!=null) publicKey=o.toString().trim(); o=settings.get("errorAction"); if(o!=null) errorActionName=o.toString().trim(); o=settings.get("successAction"); if(o!=null) successActionName=o.toString().trim(); super.init(manager, settings); } public boolean validateCaptcha(HttpServletRequest request){ String remoteAddr = request.getRemoteAddr(); ReCaptchaImpl reCaptcha = new ReCaptchaImpl(); reCaptcha.setPrivateKey(privateKey); String challenge = request.getParameter("recaptcha_challenge_field"); String uresponse = request.getParameter("recaptcha_response_field"); ReCaptchaResponse reCaptchaResponse = reCaptcha.checkAnswer(remoteAddr, challenge, uresponse); return reCaptchaResponse.isValid(); } @Override public boolean handleAction(HttpServletRequest req, HttpServletResponse resp, ModulesServlet.HttpMethod method, String action, User user) throws ServletException, IOException, ActionException { if(validateCaptcha(req)){ if(successAction!=null) return successAction.handleAction(req, resp, method, action, user); else return true; } else { if(errorAction!=null) return errorAction.handleAction(req, resp, method, action, user); else return false; } } }