/**
* 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 java.io.Serializable;
import javax.portlet.PortletRequest;
import javax.portlet.PortletSession;
import nl.captcha.Captcha;
import org.exoplatform.webui.application.portlet.PortletRequestContext;
import org.exoplatform.webui.form.UIFormInput;
import org.exoplatform.webui.form.validator.AbstractValidator;
/**
* @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 extends AbstractValidator implements Serializable {
@Override
protected boolean isValid(String value, UIFormInput uiInput) {
PortletRequestContext ctx = PortletRequestContext.getCurrentInstance();
PortletRequest req = ctx.getRequest();
PortletSession session = req.getPortletSession();
Captcha captcha = (Captcha) session.getAttribute(Captcha.NAME);
return ((captcha != null) && (captcha.isCorrect(value)));
}
protected String getMessageLocalizationKey() {
return "CaptchaValidator.msg.Invalid-input";
}
@Override
protected Object[] getMessageArgs(String value, UIFormInput uiInput) throws Exception {
String label = getLabelFor(uiInput);
if (label.charAt(label.length() - 1) == ':') {
label = label.substring(0, label.length() - 1);
}
return new Object[] { label, uiInput.getBindingField() };
}
}