package com.moon.server.interceptor;
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import com.moon.server.entity.all.StaticData;
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import com.moon.server.entity.sys.TokenEntity;
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import com.moon.server.entity.sys.UserEntity;
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import com.moon.server.helper.StringHelper;
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import com.moon.server.helper.WebHelper;
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import com.moon.server.service.all.SysService;
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import javax.annotation.Resource;
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import javax.servlet.*;
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import javax.servlet.annotation.WebFilter;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import java.util.List;
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/**
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* 代理过滤器
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* @author WWW
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* @date 2023-07-04
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*/
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@WebFilter(urlPatterns = {"/proxy/*"})
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public class ProxyFilter implements Filter {
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@Resource
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private SysService sysService;
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@Override
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public void init(FilterConfig filterConfig) {
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}
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@Override
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public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) {
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HttpServletRequest req = (HttpServletRequest) request;
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HttpServletResponse res = (HttpServletResponse) response;
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if (!check(req, res)) {
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return;
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}
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int i = 0;
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}
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@Override
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public void destroy() {
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}
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private boolean check(HttpServletRequest req, HttpServletResponse res) {
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// 2.获取令牌
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String token = WebHelper.getToken(req);
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if (StringHelper.isNull(token)) {
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return WebHelper.writeStr2Page(res, AuthInterceptor.NO_TOKEN);
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}
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// 3.获取用户
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UserEntity ue = sysService.tokenService.getCurrentUser(req);
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if (ue == null) {
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return WebHelper.writeStr2Page(res, AuthInterceptor.NO_LOGIN);
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}
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// 4.获取IP
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String ip = WebHelper.getIpAddress(req);
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if (StringHelper.isEmpty(ip)) {
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return WebHelper.writeStr2Page(res, AuthInterceptor.IP_NULL);
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}
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// 5.检查黑名单
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if (!checkBlackList(ip, req)) {
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return WebHelper.writeStr2Page(res, AuthInterceptor.BLACK_LIST);
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}
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// 6.admin跳过权限检测
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if (StaticData.ADMIN.equals(ue.getUid())) {
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return true;
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}
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// 7.检查白名单
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if (!checkWhiteList(ip, req)) {
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// 检查IP一致性
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if (!checkIpSource(ip, token)) {
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return WebHelper.writeStr2Page(res, AuthInterceptor.ILLEGAL_TOKEN);
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}
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}
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// 8.检查用户ID是否禁用
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if (sysService.tokenService.isUidDisable(ue)) {
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return WebHelper.writeStr2Page(res, AuthInterceptor.USER_LOCK);
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}
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return true;
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}
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/**
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* 检查黑名单
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*/
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private boolean checkBlackList(String ip, HttpServletRequest request) {
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List<String> blackList = sysService.blacklistService.selectIpList(1);
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if (blackList == null || blackList.isEmpty()) {
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return true;
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}
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if (blackList.contains(ip)) {
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return false;
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}
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return true;
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}
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/**
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* 检查白名单
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*/
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private boolean checkWhiteList(String ip, HttpServletRequest request) {
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List<String> whiteList = sysService.blacklistService.selectIpList(2);
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if (whiteList == null || whiteList.isEmpty()) {
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return false;
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}
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return whiteList.contains(ip);
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}
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/**
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* 检查IP一致性
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*/
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private boolean checkIpSource(String ip, String token) {
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TokenEntity te = sysService.tokenService.getEntityByToken(token);
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return te.getIp().equals(ip);
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}
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}
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