/// <summary>
/// 获取退款信息。
/// </summary>
/// <param name="root">退款XML Linq节点数据。</param>
/// <returns>返回退款信息。</returns>
protected virtual IRefundInfo GetRefundInfo(XElement root)
{
var dict = root.Elements().ToDictionary(t => t.Name.LocalName, t => t.Value);
if (dict["sign"] != GetSignature(dict, ShopKey))
{
return(null);
}
RefundInfo info = new RefundInfo();
var count = int.Parse(root.Element("refund_count").Value);
info.Items = new IRefundResult[count];
for (int i = 0; i < count; i++)
{
RefundResult item = new RefundResult();
item.RefundId = root.Element("refund_id_" + i).Value;
item.RefundFee = int.Parse(root.Element("refund_fee_" + i).Value);
item.Status = (RefundStatus)Enum.Parse(typeof(RefundStatus), root.Element("refund_status_" + i).Value);
if (root.Element("refund_channel_" + i) != null)
{
item.RefundChannel = root.Element("refund_channel_" + i).Value;
}
if (root.Element("coupon_refund_fee_" + i) != null)
{
item.Coupon = int.Parse(root.Element("coupon_refund_fee_" + i).Value);
}
if (root.Element("refund_recv_accout_" + i) != null)
{
item.Account = root.Element("refund_recv_accout_" + i).Value;
}
var ncount = int.Parse(root.Element("coupon_refund_count_" + i).Value);
item.CouponItems = new Coupon[ncount];
for (int n = 0; n < ncount; n++)
{
Coupon coupon = new Coupon();
coupon.Id = root.Element("coupon_refund_id_" + i + "_" + n).Value;
coupon.Batch = root.Element("coupon_refund_batch_id_" + i + "_" + n).Value;
coupon.Fee = int.Parse(root.Element("coupon_refund_fee_" + i + "_" + n).Value);
}
}
return(info);
}
/// <summary>
/// 微信交易退款。
/// </summary>
/// <param name="refundInfo">退款信息。</param>
/// <returns></returns>
public virtual async Task <IRefundResult> RefundPayment(IRefundOrder refundInfo)
{
if (refundInfo == null)
{
throw new ArgumentNullException("refundInfo");
}
if (!IsCertificateEnabled)
{
throw new NotSupportedException("不支持没有证书的操作。");
}
var payData = new Dictionary <string, string>();
payData.Add("appid", AppId);
payData.Add("mch_id", ShopId);
payData.Add("nonce_str", Guid.NewGuid().ToString().Replace("-", ""));//随机字符串
if (refundInfo.TransactionId != null)
{
payData.Add("transaction_id", refundInfo.TransactionId);
}
else
{
payData.Add("out_trade_no", refundInfo.TradeNo);
}
payData.Add("total_fee", refundInfo.RefundNo);
payData.Add("refund_fee", refundInfo.TradeNo);
if (refundInfo.RefundCurrency != null)
{
payData.Add("refund_fee_type", refundInfo.TradeNo);
}
payData.Add("op_user_id", refundInfo.Operator ?? ShopId);
payData.Add("sign", GetSignature(payData, ShopKey));
string backData = await HttpHelper.PostHttp(new Uri(RefundPayUrl), Encoding.UTF8.GetBytes(GetXml(payData)), "text/xml", Encoding.UTF8, 5000, Certificate);
XElement root = XDocument.Parse(backData).Element("xml");
if (root.Element("return_code").Value == "FAIL")
{
string errMsg = root.Element("return_msg").Value;
throw new WechatException(errMsg);
}
if (root.Element("result_code").Value == "FAIL")
{
string errMsg = root.Element("err_code").Value;
throw new WechatException(errMsg);
}
RefundResult result = new RefundResult();
result.RefundId = root.Element("refund_id").Value;
result.RefundChannel = root.Element("refund_channel").Value;
result.RefundFee = int.Parse(root.Element("refund_fee").Value);
result.RefundNo = root.Element("out_refund_no").Value;
result.Status = RefundStatus.PROCESSING;
if (root.Element("cash_refund_fee") != null)
{
result.RefundCash = int.Parse(root.Element("cash_fee").Value);
}
if (root.Element("coupon_refund_fee") != null)
{
result.Coupon = int.Parse(root.Element("coupon_refund_fee").Value);
}
return(result);
}
