package main
import (
"crypto/hmac"
"crypto/sha1"
"fmt"
"net/url"
"sort"
)
func CheckXiaoMiPay(urlInfo url.Values) bool {
mapKeyInfo := map[string]string{}
var slKeys sort.StringSlice
for key, _ := range urlInfo {
if key == `signature` {
continue
}
mapKeyInfo[key] = urlInfo.Get(key)
slKeys = append(slKeys, key)
}
//check success
slKeys.Sort()
var sText string
for _, key := range slKeys {
sText = sText + key + `=` + mapKeyInfo[key] + `&`
}
if len(sText) != 0 {
sText = sText[:len(sText)-1]
}
sEncrypt := getEncryptKey(sText, "QFehjb0X8qEhbkpi380GTQ=1")
fmt.Println(sEncrypt)
return sEncrypt == urlInfo.Get(`signature`)
}
func getEncryptKey(sText string, appSecret string) string {
mac := hmac.New(sha1.New, []byte(appSecret))
mac.Write([]byte(sText))
slBytes := mac.Sum(nil)
if slBytes == nil {
return ``
}
var strRtn string
for _, aByte := range slBytes {
strRtn = strRtn + fmt.Sprintf("%02x", aByte)
}
return strRtn
}
func main() {
urlData := url.Values{
"appId":            []string{"2882303761517239138"},
"cpOrderId":        []string{"9786bffc-996d-4553-aa33-f7e92c0b29d5"},
"orderConsumeType": []string{"10"},
"orderId":          []string{"21140990160359583390"},
"orderStatus":      []string{"TRADE_SUCCESS"},
"payFee":           []string{"1"},
"payTime":          []string{"2014-09-05%2015:20:27"},
"productCode":      []string{"com.demo_1"},
"productCount":     []string{"1"},
"productName":      []string{"银子1两"},
"uid":              []string{"100010"},
"signature":        []string{"121f401e6e92fa8d8bb45392b8102891a058c1be"},
}
fmt.Println(CheckXiaoMiPay(urlData))
}