package com.CUST.brain.common.security.handler;

import com.CUST.brain.common.api.CommonResult;
import com.fasterxml.jackson.databind.ObjectMapper;
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.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

/**
 * 自定义未登录或token失效时的返回结果
 */
@Slf4j
@Component
public class RestAuthenticationEntryPoint implements AuthenticationEntryPoint {
    @Override
    public void commence(HttpServletRequest request,
                        HttpServletResponse response,
                        AuthenticationException authException) throws IOException, ServletException {
        log.warn("未登录或token已过期: {}", authException.getMessage());
        response.setCharacterEncoding("UTF-8");
        response.setContentType("application/json");
        response.getWriter().println(new ObjectMapper().writeValueAsString(CommonResult.unauthorized(authException.getMessage())));
        response.getWriter().flush();
    }
} 