/*
 *    Copyright (c) 2018-2025, lengleng All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the following disclaimer.
 * Redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution.
 * Neither the name of the pig4cloud.com developer nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 * Author: lengleng (wangiegie@gmail.com)
 */

package com.pig4cloud.pigx.common.security.component;

import cn.hutool.http.HttpStatus;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.pig4cloud.pigx.common.core.constant.CommonConstant;
import com.pig4cloud.pigx.common.core.util.R;
import lombok.AllArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.security.core.AuthenticationException;
import org.springframework.security.web.AuthenticationEntryPoint;
import org.springframework.stereotype.Component;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;

/**
 * @author lengleng
 * @date 2018/7/8
 * 客户端异常处理
 * 1. 可以根据 AuthenticationException 不同细化异常处理
 */
@Slf4j
@Component
@AllArgsConstructor
public class ResourceAuthExceptionEntryPoint implements AuthenticationEntryPoint {
	private final ObjectMapper objectMapper;

	@Override
	public void commence(HttpServletRequest request, HttpServletResponse response,
						 AuthenticationException authException) throws IOException {
		response.setCharacterEncoding(CommonConstant.UTF8);
		response.setContentType(CommonConstant.CONTENT_TYPE);
		R<String> result = new R<>();
		result.setCode(HttpStatus.HTTP_UNAUTHORIZED);
		if (authException != null) {
			result.setMsg("error");
			result.setData(authException.getMessage());
		}
		response.setStatus(HttpStatus.HTTP_UNAUTHORIZED);
		PrintWriter printWriter = response.getWriter();
		printWriter.append(objectMapper.writeValueAsString(result));
	}
}
