站点RPC方法
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package siterpc
import (
"crypto/md5"
"encoding/hex"
"errors"
"strconv"
"strings"
"time"
"git.tetele.net/tgo/crypter"
)
/**
* 签名
*/
func Sign(data string, salt string) string {
var build strings.Builder
build.WriteString(data)
build.WriteString(salt)
build.WriteString("site55sign33")
data_str := build.String()
h := md5.New()
h.Write([]byte(data_str)) // 需要加密的字符串
return hex.EncodeToString(h.Sum(nil)) // 输出加密结果
}
/**
* 验证签名
*/
func CheckSign(sign_str, data, salt string) bool {
sign := Sign(data, salt)
if strings.Compare(sign_str, sign) > -1 {
return true
}
return false
}
/**
* 解密
*/
func GetOrgData(res *Response) (string, error) {
res_data := res.GetData()
if res_data == "" {
return "", errors.New("未收到收据")
}
time_int64, err := strconv.ParseInt(res.GetTime(), 10, 64)
if err != nil {
return "", err
}
now_int64 := time.Now().Unix()
if now_int64-time_int64 > 10 || time_int64-now_int64 > 10 {
//时间误差前后10秒,返回
return "", errors.New("返回时间错误")
}
check_sign := CheckSign(res.GetSign(), res_data, res.GetTime())
if !check_sign {
return "", errors.New("返回数据签名错误")
}
//解密
res_data_de := crypter.DesDe(res_data, DES_KEY)
return res_data_de, nil
}