Files
baseapi/platformapi/dingdingapi/callback.go
2019-03-09 08:10:04 +08:00

82 lines
2.1 KiB
Go

package dingdingapi
import (
"crypto/sha1"
"encoding/base64"
"fmt"
"sort"
"strings"
"time"
"git.rosy.net.cn/baseapi/utils"
)
const (
CBTagUserAddOrg = "user_add_org"
CBTagUserModifyOrg = "user_modify_org"
CBTagUserLeaveOrg = "user_leave_org"
)
const (
KeyMsgSignature = "msg_signature"
)
func (a *API) PackCallbackResult(result string) (resultMap map[string]interface{}) {
encryptedResult, err := a.Encrypt(result)
if err == nil {
resultMap = map[string]interface{}{
"encrypt": encryptedResult,
"timeStamp": utils.Int64ToStr(time.Now().Unix()),
"nonce": utils.GetUUID(),
}
resultMap["msg_signature"] = a.calculateCallbackSign(resultMap)
}
return resultMap
}
func (a *API) calculateCallbackSign(data map[string]interface{}) (sign string) {
strList := []string{
a.callbackToken,
}
for k, v := range data {
if k != KeyMsgSignature {
strList = append(strList, v.(string))
}
}
sort.Sort(sort.StringSlice(strList))
return fmt.Sprintf("%x", sha1.Sum([]byte(strings.Join(strList, ""))))
}
func (a *API) Encrypt(msg string) (encryptedMsg string, err error) {
binResult, err := utils.AESCBCEncpryt([]byte(msg), a.callbackAesKey, a.callbackAesKey[:16])
encryptedMsg = base64.StdEncoding.EncodeToString(binResult)
return encryptedMsg, err
}
func (a *API) Decrypt(msg string) (decryptedMsg string, err error) {
binMsg, err := base64.StdEncoding.DecodeString(msg)
if err == nil {
binResult, err2 := utils.AESCBCDecpryt(binMsg, a.callbackAesKey, a.callbackAesKey[:16])
if err = err2; err == nil {
decryptedMsg = string(binResult)
}
}
return decryptedMsg, err
}
func (a *API) RegisterCallback(callbackTagList []string, token, aesKey, urlStr string) (err error) {
if len(callbackTagList) > 0 { // 为0做测试用
_, err = a.AccessAPI("call_back/register_call_back", nil, map[string]interface{}{
"call_back_tag": callbackTagList,
"token": token,
"aes_key": aesKey,
"url": urlStr,
})
}
if err == nil {
a.callbackToken = token
a.callbackAesKey, _ = base64.StdEncoding.DecodeString(aesKey + "=")
}
return err
}