/*
* Copyright 1998-2014 Linux.org.ru
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package ru.org.linux.auth;
import net.tanesha.recaptcha.ReCaptcha;
import net.tanesha.recaptcha.ReCaptchaException;
import net.tanesha.recaptcha.ReCaptchaResponse;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.validation.Errors;
import javax.servlet.ServletRequest;
@Component
public class CaptchaService {
private static final Logger logger = LoggerFactory.getLogger(CaptchaService.class);
private ReCaptcha captcha;
@Autowired
public void setCaptcha(ReCaptcha captcha) {
this.captcha = captcha;
}
public void checkCaptcha(ServletRequest request, Errors errors) {
String captchaChallenge = request.getParameter("recaptcha_challenge_field");
String captchaResponse = request.getParameter("recaptcha_response_field");
if (captchaChallenge==null || captchaResponse==null) {
errors.reject(null, "Код проверки защиты от роботов не указан");
return;
}
try {
ReCaptchaResponse response = captcha.checkAnswer(request.getRemoteAddr(), captchaChallenge, captchaResponse);
if (!response.isValid()) {
errors.reject(null, "Код проверки защиты от роботов не совпадает");
}
} catch (ReCaptchaException e) {
logger.warn("Unable to check captcha", e);
errors.reject(null, "Unable to check captcha: "+e.getMessage());
}
}
}