- dingding callback

platformapi/weixinapi/sns.go

@@ -1,8 +1,7 @@
 package weixinapi
 
 import (
-	"crypto/aes"
-	"crypto/cipher"
+	"bytes"
 
 	"git.rosy.net.cn/baseapi/utils"
 )
@@ -86,19 +85,18 @@ func (a *API) SNSDecodeMiniProgramData(encryptedData, sessionKey, iv string) (de
 	if err != nil {
 		return nil, err
 	}
-	c, err := aes.NewCipher(decodedDataList[1])
-	if err != nil {
-		return nil, err
-	}
-	cfbdec := cipher.NewCBCDecrypter(c, decodedDataList[2][:c.BlockSize()])
-	decryptedData = make([]byte, len(decodedDataList[0]))
-	cfbdec.CryptBlocks(decryptedData, decodedDataList[0])
-	decryptedData = PKCS7UnPadding(decryptedData)
-	return decryptedData, nil
+	decryptedData, err = utils.AESCBCDecpryt(decodedDataList[0], decodedDataList[1], decodedDataList[2])
+	return decryptedData, err
 }
 
-func PKCS7UnPadding(origData []byte) []byte {
+func PKCSUnPadding(origData []byte) []byte {
 	length := len(origData)
 	unpadding := int(origData[length-1])
 	return origData[:(length - unpadding)]
 }
+
+func PKCSPadding(ciphertext []byte, blockSize int) []byte {
+	padding := blockSize - len(ciphertext)%blockSize
+	padtext := bytes.Repeat([]byte{byte(padding)}, padding)
+	return append(ciphertext, padtext...)
+}