package com.freedom.admin.config;

import com.alibaba.fastjson.JSON;
import com.freedom.admin.common.Result;
import com.freedom.admin.utils.JwtUtils;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.web.authentication.AuthenticationSuccessHandler;
import org.springframework.stereotype.Component;


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

/**
 * @author zhangjiaxun
 * @date 2021/1/5 17:40
 * @description 对安全验证成功的请求进行响应处理
 */
@Component
@Slf4j
public class MyAuthenticationSuccessHandler implements AuthenticationSuccessHandler {

    @Autowired
    private JwtUtils jwtUtils;

    @Override
    public void onAuthenticationSuccess(HttpServletRequest request, HttpServletResponse response, Authentication authentication) throws IOException {

        UserDetails userDetails = (UserDetails)authentication.getPrincipal();
        // 生成token
        String token = jwtUtils.generateToken(userDetails.getUsername());
        Result result = Result.ok().message("登录成功").token(token);
        // 修改编码格式
        response.setCharacterEncoding("utf-8");
        response.setContentType("application/json");
        // 输出结果
        response.getWriter().write(JSON.toJSONString(result));
    }

}