package com.mes.common.handler;

import cn.hutool.json.JSONUtil;
import com.mes.common.utils.JwtUtil;
import com.mes.utils.Result;
import org.springframework.security.core.Authentication;
import org.springframework.security.web.authentication.AuthenticationSuccessHandler;
import org.springframework.stereotype.Component;

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

@Component
public class LoginSuccessHandler implements AuthenticationSuccessHandler {

	private static final String header = "Authorization";

	@Override
	public void onAuthenticationSuccess(HttpServletRequest request, HttpServletResponse response, Authentication authentication) throws IOException, ServletException {
		response.setContentType("application/json;charset=UTF-8");
		ServletOutputStream outputStream = response.getOutputStream();

		// 生成jwt，并放置到请求头中
		String jwt = JwtUtil.generateToken(authentication.getName());
		response.setHeader(header, jwt);

		Result result = Result.success("");

		outputStream.write(JSONUtil.toJsonStr(result).getBytes("UTF-8"));

		outputStream.flush();
		outputStream.close();
	}

}