/
sysParams.go
75 lines (65 loc) · 1.63 KB
/
sysParams.go
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package openyouku
import (
"bytes"
"crypto/md5"
"encoding/hex"
"encoding/json"
"net/url"
"sort"
)
//SysParams API定义的系统级别参数
type SysParams struct {
Action string `json:"action"`
ClientID string `json:"client_id"`
AccessToken string `json:"access_token"`
Format string `json:"format"`
Timestamp string `json:"timestamp"`
Version string `json:"version"`
Sign string `json:"sign"`
}
func (p *SysParams) String() (string, error) {
data, err := json.Marshal(p)
if err != nil {
return "", err
}
return string(data), nil
}
//SignParm is a method to sign this request
func (p *SysParams) SignParm(clientSecret string, param map[string]string) map[string]string {
signParam := map[string]string{
"action": p.Action,
"timestamp": p.Timestamp,
"client_id": p.ClientID,
"version": p.Version,
}
var keys []string
for key := range signParam {
keys = append(keys, key)
}
for key := range param {
keys = append(keys, key)
}
//对系统参数与业务参数的key进行排序
sort.Strings(keys)
buffer := bytes.NewBufferString("")
for _, k := range keys {
//如果冲突,则系统参数在前,所以,这里的顺序很重要
if s, ok := signParam[k]; ok {
buffer.WriteString(k)
buffer.WriteString(s)
}
if s, ok := param[k]; ok {
buffer.WriteString(k)
buffer.WriteString(s)
}
}
buffer.WriteString(clientSecret)
signStr := buffer.String()
signStr = url.QueryEscape(signStr)
md5Hahser := md5.New()
md5Hahser.Write([]byte(signStr))
md5Sum := md5Hahser.Sum(nil)
signStr = hex.EncodeToString(md5Sum[:])
signParam["sign"] = signStr
return signParam
}