/*
 * Copyright (c) 2010-2016, b3log.org & hacpai.com
 *
 * 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 org.b3log.solo.processor.console.common;


import java.io.IOException;
import java.util.Map;
import javax.inject.Named;
import javax.inject.Singleton;

import javax.servlet.http.HttpServletResponse;
import org.b3log.latke.ioc.LatkeBeanManager;
import org.b3log.latke.ioc.Lifecycle;

import org.b3log.latke.servlet.HTTPRequestContext;
import org.b3log.latke.servlet.advice.BeforeRequestProcessAdvice;
import org.b3log.latke.servlet.advice.RequestProcessAdviceException;
import org.b3log.latke.servlet.advice.RequestReturnAdviceException;
import org.b3log.solo.service.UserQueryService;


/**
 *  The common auth check before advice for admin console.
 * 
 * @author <a href="mailto:wmainlove@gmail.com">Love Yao</a>
 * @version 1.0.0.1, Jal 18, 2013
 */
@Named
@Singleton
public class ProcessAuthAdvice extends BeforeRequestProcessAdvice {

    @Override
    public void doAdvice(final HTTPRequestContext context, final Map<String, Object> args) throws RequestProcessAdviceException {
        final LatkeBeanManager beanManager = Lifecycle.getBeanManager();
        final UserQueryService userQueryService = beanManager.getReference(UserQueryService.class);
        
        if (!userQueryService.isLoggedIn(context.getRequest(), context.getResponse())) {
            try {
                context.getResponse().sendError(HttpServletResponse.SC_FORBIDDEN);
            } catch (final IOException e) {
                throw new RuntimeException(e);
            }
            throw new RequestReturnAdviceException(null);
        }

    }

}
