SignAspect.java
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package com.xkl.authorization.aspect;
import com.xkl.repository.XklInterKeyRespository;
import com.xkl.security.SecurityTool;
import com.xkl.tools.UtilTools;
import lombok.extern.apachecommons.CommonsLog;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import javax.servlet.http.HttpServletRequest;
import java.util.Collections;
import java.util.List;
import java.util.Map;
/**
* Created by win7 on 2016/11/20.
*加密算法:
* t: 北京时间距离1970年1月1日的秒数
* key:(平台对应的key,此值喜开路管理员授予)
* str:业务参数数组,按参数名递增排序排列拼接,例如用户登陆接口,coid+password+username
* sign=md5(str+t+key),32位小写md5
* 需要验证:
* sign:是否正确
* t:是否过期,客户端与服务器时间必须为±300s以内,否则时间验证过期。
*/
@Service
@Aspect
@CommonsLog
public class SignAspect {
@Autowired
private XklInterKeyRespository xklInterKeyRespository;
/**
* 由接口传过来的type获取xkl_inter_key表中的key
* @param type
* @return
*/
private String getKeyByType(int type){
long id = (long)type;
return (xklInterKeyRespository.findOne(id) == null)?"":xklInterKeyRespository.findOne(id).getKey();
}
/**
* 定义切点,定位到@Sign注解的地方
*/
@Pointcut("@annotation(com.xkl.authorization.annotation.Sign)")
public void signPointCut() {
}
@Before(value="signPointCut()")
public void beforeSign(JoinPoint joinPoint) throws Exception {
Object[] args = joinPoint.getArgs();
//Controller中所有方法的参数,前两个分别为:Request,Response
HttpServletRequest request = (HttpServletRequest) args[0];
// HttpServletResponse response = (HttpServletResponse)args[1];
String sign = request.getParameter("sign");
long t = UtilTools._long(request.getParameter("t"));
int type = UtilTools._int(request.getParameter("type"));
/**
* str为
* sign=md5(str+t+key)
*/
Map<String,String[]> map=request.getParameterMap();
List<String> list=Collections.list(request.getParameterNames());
Collections.sort(list);
String str="";
for(String para:list){
if(!para.equals("sign")&&!para.equals("t")&&!para.equals("type"))
str += map.get(para)[0];
}
String key = getKeyByType(type);
if(key != null){
long t1= UtilTools.getNow10Second();
String sign1= SecurityTool.encode("MD5",str+t+key);
/**
* 比较sign和过期时间
*/
if(sign1.equals(sign)&&Math.abs(t1-t)<60*60*24){
request.setAttribute("signAspect",true);
}else{
request.setAttribute("signAspect",false);
}
}else{
request.setAttribute("signAspect",false);
}
}
}