protected override async Task <object> GetTaskResult(ApiActionContext context)
{
System.Net.Http.HttpResponseMessage response = context.ResponseMessage;
string xml = await response.Content.ReadAsStringAsync().ConfigureAwait(false);
Type dataType = context.ApiActionDescriptor.Return.DataType.Type;
object result = context.HttpApiConfig.XmlFormatter.Deserialize(xml, dataType);
IEnumerable <XElement> elements = XDocument.Parse(xml)?.Root?.Elements();
if (elements != null && elements.Any())
{
if (result is WeChat.ApiModels.Response.WeChatPayResponse weChatPayResponse)
{
weChatPayResponse.OriginalContent = xml;
}
{//验签
string returnSign = elements.FirstOrDefault(e => e.Name == "sign")?.Value;
if (!string.IsNullOrWhiteSpace(returnSign))
{
WeChatSignSettings signSettings = context.ApiActionDescriptor.Arguments.FirstOrDefault(arg => arg is WeChatSignSettings) as WeChatSignSettings;
SortedDictionary <string, string> parameters = new SortedDictionary <string, string>();
foreach (XElement element in elements)
{
if (!string.IsNullOrEmpty(element.Name.LocalName) && !string.IsNullOrEmpty(element.Value))
{
parameters.Add(element.Name.LocalName, element.Value);
}
}
string sign = new WeChatSignProvider(signSettings).SignWithKey(parameters);
if (sign != returnSign)
{
throw new CheckSignException($"targetSign:{sign} != {returnSign}");
}
}
}
if (result is IWeChatPayXmlReturnListPropertParser weChatPayXmlReturnListPropertParser)
{
weChatPayXmlReturnListPropertParser.ParseListProperty(elements);
}
}
return(result);
}
public override async Task SignRequestAsync(ApiActionContext context)
{
WeChatSignSettings signSettings = context.ApiActionDescriptor.Arguments.FirstOrDefault(arg => arg is WeChatSignSettings) as WeChatSignSettings;
string xmlstring = await context.RequestMessage.Content.ReadAsStringAsync();
XDocument xml = XDocument.Parse(xmlstring);
XElement bodyDoc = xml.Root;
bodyDoc.Add(new XElement("sign_type", signSettings.SignType.GetDescription()));
SortedDictionary <string, string> parameters = new SortedDictionary <string, string>();
foreach (XElement element in bodyDoc.Elements())
{
if (!string.IsNullOrEmpty(element.Name.LocalName) && !string.IsNullOrEmpty(element.Value))
{
parameters.Add(element.Name.LocalName, element.Value);
}
}
string sign = new WeChatSignProvider(signSettings).SignWithKey(parameters);
bodyDoc.Add(new XElement("sign", sign));
context.RequestMessage.Content = new StringContent(bodyDoc.ToString(), Encoding.UTF8, "application/xml");
}
