public async Task <string> HandlePaymentCallbackAsync(Func <PaymentCallbackResponse, Task> handle, string input)
{
var r = new PaymentCallbackResponse();
var xml = XDocument.Parse(input);
var root = xml.Element("jdpay");
var result = root.Element("result");
r.Success = result.Element("code").Value == "000000";
r.Message = result.Element("desc").Value;
if (r.Success)
{
var encryptStr = root.Element("encrypt").Value;
var key = Convert.FromBase64String(_options.JdPay.Key);
var inputStr =
SecretUtil.Des3DecryptEcb(key, Encoding.UTF8.GetString(Convert.FromBase64String(encryptStr)));
xml = XDocument.Parse(inputStr);
root = xml.Element("jdpay");
var status = root.Element("status").Value;
r.Success = status == "2";
var orderId = root.Element("tradeNum").Value;
r.OrderId = Convert.ToInt64(orderId);
var signNode = root.Element("sign");
var sign = signNode.Value;
signNode.Remove();
if (!CheckSign(sign, root.ToString()))
{
throw new SettleException("京东支付异步回调验签失败");
}
}
await handle.Invoke(r);
return("success");
}
