private string BuildRequestBody(OutcomingData data)
{
var nonce = _random.Next().ToString("D");
var items = data.GetFields(_jsonParser)
.Concat(GetCommonOutcomingFields(data))
.Where(x => !string.IsNullOrEmpty(x.Value))
.ToList();
items.Add(new KeyValuePair <string, string>("sign", ComputeSign(items)));
var xml = new XElement("xml", items.Select(x => new XElement(x.Key, x.Value)));
return(xml.ToString(SaveOptions.DisableFormatting));
}
public async Task <TIncoming> SendRequest <TIncoming, TErrorCode>(string url, bool requiresClientCert, OutcomingData data, bool checkSignatue)
where TIncoming : IncomingData <TErrorCode>, new()
where TErrorCode : struct
{
var response = await GetResponse(url, requiresClientCert, data);
var responseBody = await response.Content.ReadAsStringAsync().ConfigureAwait(false);
return(ParseResponse <TIncoming, TErrorCode>(responseBody, checkSignatue));
}
private IEnumerable <KeyValuePair <string, string> > GetCommonOutcomingFields(OutcomingData data)
{
yield return(new KeyValuePair <string, string>(data.AppIdFieldName, _appid));
yield return(new KeyValuePair <string, string>(data.MerchantIdFieldName, _mch_id));
yield return(new KeyValuePair <string, string>(data.SubAppIdFieldName, _sub_appid));
yield return(new KeyValuePair <string, string>(data.SubMerchantIdFieldName, _sub_mch_id));
var nonce = _random.Next().ToString("D");
yield return(new KeyValuePair <string, string>("nonce_str", nonce));
}
public async Task <HttpResponseMessage> GetResponse(string url, bool requiresClientCert, OutcomingData data)
{
var requestBody = BuildRequestBody(data);
var request = new HttpRequestMessage(HttpMethod.Post, url)
{
Content = new StringContent(requestBody, Encoding.UTF8)
};
HttpClientHandler handler;
if (requiresClientCert)
{
handler = new HttpClientHandler
{
ClientCertificateOptions = ClientCertificateOption.Manual,
AutomaticDecompression = DecompressionMethods.Deflate |
DecompressionMethods.GZip,
};
handler.ClientCertificates.Add(_cert);
}
else
{
handler = new HttpClientHandler
{
AutomaticDecompression = DecompressionMethods.Deflate |
DecompressionMethods.GZip,
};
}
var http = CreateHttpClient(handler);
var response = await http.SendAsync(request).ConfigureAwait(false);
response.EnsureSuccessStatusCode();
return(response);
}