private void CheckNotifySign(WeChatPayNotify notify, WeChatPayOptions options)
{
if (string.IsNullOrEmpty(notify.Body))
{
throw new WeChatPayException("sign check fail: Body is Empty!");
}
if (notify.Parameters.Count == 0)
{
throw new WeChatPayException("sign check fail: Parameters is Empty!");
}
if (!notify.Parameters.TryGetValue("sign", out var sign))
{
throw new WeChatPayException("sign check fail: sign is Empty!");
}
var cal_sign = WeChatPaySignature.SignWithKey(notify.Parameters, options.Key, WeChatPaySignType.MD5);
if (cal_sign != sign)
{
throw new WeChatPayException("sign check fail: check Sign and Data Fail!");
}
}
private void CheckResponseSign(WeChatPayResponse response, WeChatPayOptions options, WeChatPaySignType signType)
{
if (string.IsNullOrEmpty(response.Body))
{
throw new WeChatPayException("sign check fail: Body is Empty!");
}
if (response.Parameters.TryGetValue(WeChatPayConsts.return_code, out var return_code))
{
if (return_code == WeChatPayCode.Success)
{
if (!response.Parameters.TryGetValue(WeChatPayConsts.sign, out var sign))
{
throw new WeChatPayException("sign check fail: sign is Empty!");
}
var cal_sign = WeChatPaySignature.SignWithKey(response.Parameters, options.Key, signType);
if (cal_sign != sign)
{
throw new WeChatPayException("sign check fail: check Sign and Data Fail!");
}
}
}
}