/**
* Copyright (C) 2009 eXo Platform SAS.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.exoplatform.portal.webui;
import org.exoplatform.portal.application.PortalRequestContext;
import org.exoplatform.portal.webui.util.Util;
import org.exoplatform.web.application.ApplicationMessage;
import org.exoplatform.webui.core.UIComponent;
import org.exoplatform.webui.exception.MessageException;
import org.exoplatform.webui.form.UIForm;
import org.exoplatform.webui.form.UIFormInput;
import org.exoplatform.webui.form.validator.Validator;
import nl.captcha.Captcha;
import java.io.Serializable;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
/**
* @author <a href="mailto:theute@redhat.com">Thomas Heute</a>
* Validator for Captcha content.
* Checks that the user input is equals to the content displayed by the
* distorted image.
*/
public class CaptchaValidator implements Validator, Serializable
{
public void validate(UIFormInput uiInput) throws Exception
{
PortalRequestContext prContext = Util.getPortalRequestContext();
HttpServletRequest request = prContext.getRequest();
HttpSession session = request.getSession();
Captcha captcha = (Captcha) session.getAttribute(Captcha.NAME);
if ((captcha != null) && (captcha.isCorrect((String) uiInput.getValue())))
{
return;
}
//modified by Pham Dinh Tan
UIComponent uiComponent = (UIComponent) uiInput;
UIForm uiForm = uiComponent.getAncestorOfType(UIForm.class);
String label;
try
{
label = uiForm.getLabel(uiInput.getName());
}
catch (Exception e)
{
label = uiInput.getName();
}
label = label.trim();
if (label.charAt(label.length() - 1) == ':')
label = label.substring(0, label.length() - 1);
Object[] args =
{label, uiInput.getBindingField()};
throw new MessageException(new ApplicationMessage("CaptchaValidator.msg.Invalid-input", args,
ApplicationMessage.WARNING));
}
}