demo-parameter-decode/src/main/java/com/tptj/demo/hg/parameter/decode/Sign.java

package com.tptj.demo.hg.parameter.decode;

import com.fr.intelli.record.Focus;
import com.fr.record.analyzer.EnableMetrics;
import com.fr.stable.CodeUtils;
import com.fr.stable.StringUtils;

/**
 * @author 秃破天际
 * @version 10.0
 * Created by 秃破天际 on 2021/7/11
 **/
@EnableMetrics
public class Sign {
    private String md5;
    private long timestamp;
    private long timeout;

    private Sign(String md5, long timestamp, long timeout) {
        this.md5 = md5;
        this.timestamp = timestamp;
        this.timeout = timeout;
    }

    private final static Sign EMPTY = new Sign(StringUtils.EMPTY,0,0);

    /**
     * 解析签名
     * @param sign
     * @return
     */
    public static Sign parse( String sign ){
        try{
            String md5 = sign.substring(0,32);
            long timestamp = Long.parseLong( sign.substring(33,46) );
            long timeout = Long.parseLong( sign.substring(47) );
            return new Sign(md5,timestamp,timeout);
        }catch(Exception e){

        }
        return EMPTY;
    }

    /**
     * 检验超时
     * @return
     */
    public boolean isTimeout(){
        long crt = System.currentTimeMillis();
        return  crt  < timestamp || crt - timestamp > timeout;
    }

    /**
     * 验签
     * @param data
     * @param secret
     * @return
     */
    @Focus(id = "com.tptj.demo.hg.parameter.decode.v10",text = "Parameter Decode")
    public boolean check( String data, String secret ){
        String source = data+secret+timestamp+timeout;
        String md5 = CodeUtils.md5Encode(source, StringUtils.EMPTY,"MD5");
        return StringUtils.equals(md5,this.md5);
    }
}