调用钉钉回调接口提示"errcode":71009,"errmsg":"返回文本非success，

调用钉钉回调接口提示"errcode":71009,"errmsg":"返回文本非success， 本地可以解析出："EventType" : "check_url"

代码是这么写的：

class DingTalkCrypto(): def init(self, encodingAesKey, key): self.encodingAesKey = encodingAesKey self.key = key self.aesKey = base64.b64decode(self.encodingAesKey + '=')

def encrypt(self, content):
    """加密"""
    msg_len = self.length(content)
    content = self.generateRandomKey(16) + msg_len.decode() + content + self.key
    contentEncode = self.pks7encode(content)
    iv = self.aesKey[:16]
    aesEncode = AES.new(self.aesKey, AES.MODE_CBC, iv)
    aesEncrypt = aesEncode.encrypt(contentEncode)
    return base64.b64encode(aesEncrypt).decode().replace('\n', '')

def length(self, content):
    """将msg_len转为符合要求的四位字节长度"""
    l = len(content)
    return struct.pack('>l', l)

def pks7encode(self, content):
    """安装PKCS#7标准填充字符串"""
    l = len(content)
    output = io.StringIO()
    val = 32 - (l % 32)
    for _ in range(val):
        output.write('%02x' % val)
    return bytes(content, 'utf-8') + binascii.unhexlify(output.getvalue())

def pks7decode(self, content):
    nl = len(content)
    val = int(binascii.hexlify(content[-1].encode()), 16)
    if val > 32:
        raise ValueError('Input is not padded or padding is corrupt')
    l = nl - val
    return content[:l]

def decrypt(self, content):
    """解密数据"""
    # 钉钉返回的消息体
    content = base64.b64decode(content)
    iv = self.aesKey[:16]  # 初始向量
    aesDecode = AES.new(self.aesKey, AES.MODE_CBC, iv)
    decodeRes = aesDecode.decrypt(content)[20:].decode().replace(self.key, '')
    return self.pks7decode(decodeRes)

def generateRandomKey(self, size,
                      chars=string.ascii_letters + string.ascii_lowercase + string.ascii_uppercase + string.digits):
    """生成加密所需要的随机字符串"""
    return ''.join(choice(chars) for i in range(size))

def generateSignature(self, nonce, timestamp, token, msg_encrypt):
    """生成签名"""
    signList = ''.join(sorted([nonce, timestamp, token, msg_encrypt])).encode()
    return hashlib.sha1(signList).hexdigest()

def result_success(encode_aes_key, token, corp_id): dtc = DingTalkCrypto(encode_aes_key,corp_id) encrypt = dtc.encrypt('success') timestamp = str(int(round(time.time()))) nonce = dtc.generateRandomKey(8) # 生成签名 signature = dtc.generateSignature(nonce, timestamp, token, encrypt) # 构造返回数据 new_data = { 'data': { 'msg_signature': signature, 'timeStamp': timestamp, 'nonce': nonce, 'encrypt': encrypt } } return new_data