package cc.mrbird.febs.common.aspect;
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import cc.mrbird.febs.common.annotation.SubmitRepeat;
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import cc.mrbird.febs.common.contants.AppContants;
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import cc.mrbird.febs.common.exception.FebsException;
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import cc.mrbird.febs.common.utils.RedisUtils;
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import cc.mrbird.febs.modules.api.entity.MemberEntity;
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import cn.hutool.core.util.StrUtil;
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import cn.hutool.crypto.asymmetric.KeyType;
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import cn.hutool.crypto.asymmetric.RSA;
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import com.alibaba.fastjson.JSON;
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import lombok.extern.slf4j.Slf4j;
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import org.aspectj.lang.ProceedingJoinPoint;
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import org.aspectj.lang.annotation.*;
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import org.springframework.stereotype.Component;
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import org.springframework.web.context.request.RequestContextHolder;
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import org.springframework.web.context.request.ServletRequestAttributes;
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import javax.annotation.Resource;
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import javax.servlet.http.HttpServletRequest;
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@Slf4j
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@Aspect
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@Component
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public class SubmitRepeatAspect {
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@Resource
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private RedisUtils redisUtil;
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private String key;
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@Pointcut("@annotation(submitRepeat)")
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public void submitRepeatPointCut(SubmitRepeat submitRepeat) {
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}
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@Before("submitRepeatPointCut(submitRepeat)")
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public void before(SubmitRepeat submitRepeat) {
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}
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@Around("submitRepeatPointCut(submitRepeat)")
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public Object around(ProceedingJoinPoint joinPoint, SubmitRepeat submitRepeat) throws Throwable {
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ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
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HttpServletRequest request = attributes.getRequest();
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String headerToken = request.getHeader("token");
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String token = resolveToken(headerToken);
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if(StrUtil.isEmpty(token)) {
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throw new FebsException("系统繁忙");
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}
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String object = (String)redisUtil.get(token);
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MemberEntity member = JSON.parseObject(object, MemberEntity.class);
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String mId = member.getId().toString();
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String uri = request.getRequestURI();
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log.info("#token : {}, uri : {}, mId : {}#", token, uri, mId);
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key = mId + "_" + uri;
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boolean flag = redisUtil.setNotExist(key, "1", 5);
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log.info("#mid : {}, flag : {}#", mId, flag);
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if (flag) {
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return joinPoint.proceed();
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} else {
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throw new FebsException("请勿重复提交");
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}
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}
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@After("submitRepeatPointCut(submitRepeat)")
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public void after(SubmitRepeat submitRepeat) {
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}
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private static String resolveToken(String token) {
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try {
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RSA rsa = new RSA(AppContants.PRIVATE_KEY, null);
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String[] tokens = StrUtil.split(rsa.decryptStr(token, KeyType.PrivateKey), "_");
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return tokens[0];
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} catch (Exception e) {
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return null;
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}
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}
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}
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