//package com.mes.filter;
//
//import com.fasterxml.jackson.databind.ObjectMapper;
//import com.mes.utils.Result;
//import com.mes.entity.SecurityUser;
//import com.mes.entity.User;
//import com.mes.security.TokenManager;
//import com.mes.utils.ResponseUtil;
//import org.springframework.data.redis.core.RedisTemplate;
//import org.springframework.security.authentication.AuthenticationManager;
//import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
//import org.springframework.security.core.Authentication;
//import org.springframework.security.core.AuthenticationException;
//import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;
//import org.springframework.security.web.util.matcher.AntPathRequestMatcher;
//
//import javax.servlet.FilterChain;
//import javax.servlet.ServletException;
//import javax.servlet.http.HttpServletRequest;
//import javax.servlet.http.HttpServletResponse;
//import java.io.IOException;
//import java.util.ArrayList;
//
//public class TokenLoginFilter extends UsernamePasswordAuthenticationFilter {
//
//    private TokenManager tokenManager;
//    private RedisTemplate redisTemplate;
//    private AuthenticationManager authenticationManager;
//
//    public TokenLoginFilter(AuthenticationManager authenticationManager, TokenManager tokenManager, RedisTemplate redisTemplate) {
//        this.authenticationManager = authenticationManager;
//        this.tokenManager = tokenManager;
//        this.redisTemplate = redisTemplate;
//        this.setPostOnly(false);
//        this.setRequiresAuthenticationRequestMatcher(new AntPathRequestMatcher("/admin/acl/login","POST"));
//    }
//
//    //1 获取表单提交用户名和密码
//    @Override
//    public Authentication attemptAuthentication(HttpServletRequest request, HttpServletResponse response)
//            throws AuthenticationException {
//        //获取表单提交数据
//        try {
//            User user = new ObjectMapper().readValue(request.getInputStream(), User.class);
//            return authenticationManager.authenticate(new UsernamePasswordAuthenticationToken(user.getUsername(),user.getPassword(),
//                    new ArrayList<>()));
//        } catch (IOException e) {
//            e.printStackTrace();
//            throw new RuntimeException();
//        }
//    }
//
//    //2 认证成功调用的方法
//    @Override
//    protected void successfulAuthentication(HttpServletRequest request,
//                                            HttpServletResponse response, FilterChain chain, Authentication authResult)
//            throws IOException, ServletException {
//        //认证成功，得到认证成功之后用户信息
//        SecurityUser user = (SecurityUser)authResult.getPrincipal();
//        //根据用户名生成token
//        String token = tokenManager.createToken(user.getCurrentUserInfo().getUsername());
//        //把用户名称和用户权限列表放到redis
//        redisTemplate.opsForValue().set(user.getCurrentUserInfo().getUsername(),user.getPermissionValueList());
//        //返回token
//        ResponseUtil.out(response, Result.success(token));
//    }
//
//    //3 认证失败调用的方法
//    @Override
//    protected void unsuccessfulAuthentication(HttpServletRequest request, HttpServletResponse response, AuthenticationException failed)
//            throws IOException, ServletException {
//        ResponseUtil.out(response, Result.error());
//    }
//}