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

import com.CUST.brain.common.api.CommonResult;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.security.access.AccessDeniedException;
import org.springframework.security.web.access.AccessDeniedHandler;
import org.springframework.stereotype.Component;

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

/**
 * 自定义无权限访问的返回结果
 */
@Component
public class RestfulAccessDeniedHandler implements AccessDeniedHandler {
    @Override
    public void handle(HttpServletRequest request,
                      HttpServletResponse response,
                      AccessDeniedException e) throws IOException, ServletException {
        response.setCharacterEncoding("UTF-8");
        response.setContentType("application/json");
        response.getWriter().println(new ObjectMapper().writeValueAsString(CommonResult.forbidden(e.getMessage())));
        response.getWriter().flush();
    }
} 