/// <summary>
/// 退款
/// </summary>
/// <param name="key">商户API key</param>
/// <param name="cert_subjectName">商户证书主体名</param>
/// <returns></returns>
public async Task <bool> GetRefund(string key, string cert_subjectName)
{
var dicProperties = ToDicHelper.GetPropertiesFromObj(this);
dicProperties.Remove(nameof(timeStamp));
//拼接成XML请求数据
StringBuilder sbPay = new StringBuilder();
foreach (KeyValuePair <string, string> k in dicProperties)
{
sbPay.Append($"<{ k.Key }><![CDATA[{ k.Value }]]></{ k.Key }>");
}
sbPay.Append($"<sign>{GetSign(dicProperties, key)}</sign>");
string post_string = string.Format($"<xml>{sbPay.ToString()}</xml>");
var handler = new HttpClientHandler
{
ClientCertificateOptions = ClientCertificateOption.Manual,
SslProtocols = SslProtocols.Tls12
};
X509Store store = new X509Store(StoreName.My, StoreLocation.CurrentUser);
store.Open(OpenFlags.ReadOnly);
foreach (var cert in store.Certificates)
{
if (cert.SubjectName.Name == cert_subjectName)
{
handler.ClientCertificates.Add(cert);
}
}
using (HttpClient client = new HttpClient(handler))
{
client.DefaultRequestHeaders.Accept.Add(new System.Net.Http.Headers.MediaTypeWithQualityHeaderValue("text/xml"));
var response = await client.PostAsync(RefundUrl, new StringContent(post_string, Encoding.UTF8));
if (response.IsSuccessStatusCode)
{
var res = GetInfoFromXml(await response.Content.ReadAsStringAsync());
if (res["return_code"] == "SUCCESS")
{
if (res["result_code"] == "SUCCESS")
{
return(true);
}
else
{
throw new Exception($"{res["err_code"]} : {res["err_code_des"]}");
}
//prepay_id = res["prepay_id"];
}
else
{
throw new Exception(res["return_msg"]);
}
}
return(false);
}
}
/// <summary>
/// 获取微信返回的预付单信息
/// </summary>
/// <param name="amount"></param>
/// <returns></returns>
public async Task <WeChatPayReturnModel> GetWeChatPay(string key)
{
var dicProperties = ToDicHelper.GetPropertiesFromObj(this);
dicProperties.Remove(nameof(timeStamp));
//拼接成XML请求数据
StringBuilder sbPay = new StringBuilder();
//sbPay.Append(@"<?xml version=""1.0"" encoding=""utf - 8""?>");
foreach (KeyValuePair <string, string> k in dicProperties)
{
//if (k.Key == "attach" || k.Key == "body" || k.Key == "sign")
//{
// sbPay.Append($"<{ k.Key }><![CDATA[{ k.Value }]]></{ k.Key }>");
//}
//else
//{
// sbPay.Append($"<{ k.Key }>{ k.Value }</{ k.Key }>");
//}
sbPay.Append($"<{ k.Key }><![CDATA[{ k.Value }]]></{ k.Key }>");
}
sbPay.Append($"<sign>{GetSign(dicProperties, key)}</sign>");
string post_string = string.Format($"<xml>{sbPay.ToString()}</xml>");
//发起请求,获取预付订单
string prepay_id = "";
using (HttpClient client = new HttpClient())
{
client.DefaultRequestHeaders.Accept.Add(new System.Net.Http.Headers.MediaTypeWithQualityHeaderValue("text/xml"));
var response = await client.PostAsync(UnifiedPayUrl, new StringContent(post_string, Encoding.UTF8));
if (response.IsSuccessStatusCode)
{
var res = GetInfoFromXml(await response.Content.ReadAsStringAsync());
if (res["return_code"] == "SUCCESS")
{
prepay_id = res["prepay_id"];
}
else
{
throw new Exception(res["return_msg"]);
}
}
}
WeChatPayReturnModel result = new WeChatPayReturnModel()
{
NonceStr = nonce_str,
AppId = appid,
Package = "prepay_id=" + prepay_id,
};
//timeStamp = int.Parse(result.TimeStamp);
//计算签名
SortedDictionary <string, string> paysign = new SortedDictionary <string, string>
{
{ "appId", appid },
{ "nonceStr", result.NonceStr },
{ "package", result.Package },
{ "signType", result.SignType },
{ "timeStamp", result.TimeStamp },
};
result.PaySign = GetSign(paysign, key);
return(result);
}