package com.zhgd.xmgl.security;

import lombok.experimental.UtilityClass;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.context.SecurityContextHolder;
@UtilityClass
public class SecurityUtil {

    /**
     * 获取Authentication
     */
    public Authentication getAuthentication() {
        return SecurityContextHolder.getContext().getAuthentication();
    }

    /**
     * 获取用户
     * @param authentication
     * <p>
     */
    private SecurityUser getUser(Authentication authentication) {
        Object principal = authentication.getPrincipal();
        if (principal instanceof SecurityUser) {
            return (SecurityUser) principal;
        }
        return null;
    }

    /**
     * 获取用户
     */
    public SecurityUser getUser() {
        Authentication authentication = getAuthentication();
        return getUser(authentication);
    }
}