/
sign.go
49 lines (40 loc) · 1.07 KB
/
sign.go
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package jssdk
import (
"bufio"
"crypto/sha1"
"encoding/hex"
"sort"
"strings"
)
// JS-SDK wx.config 的参数签名.
func WXConfigSign(jsapiTicket, nonceStr, timestamp, url string) (signature string) {
if i := strings.IndexByte(url, '#'); i >= 0 {
url = url[:i]
}
n := len("jsapi_ticket=") + len(jsapiTicket) +
len("&noncestr=") + len(nonceStr) +
len("×tamp=") + len(timestamp) +
len("&url=") + len(url)
buf := make([]byte, 0, n)
buf = append(buf, "jsapi_ticket="...)
buf = append(buf, jsapiTicket...)
buf = append(buf, "&noncestr="...)
buf = append(buf, nonceStr...)
buf = append(buf, "×tamp="...)
buf = append(buf, timestamp...)
buf = append(buf, "&url="...)
buf = append(buf, url...)
hashsum := sha1.Sum(buf)
return hex.EncodeToString(hashsum[:])
}
// JS-SDK 卡券 API 参数签名.
func CardSign(strs []string) (signature string) {
sort.Strings(strs)
h := sha1.New()
bufw := bufio.NewWriterSize(h, 128) // sha1.BlockSize 的整数倍
for _, str := range strs {
bufw.WriteString(str)
}
bufw.Flush()
return hex.EncodeToString(h.Sum(nil))
}