public TimeStampProviderApiResult VerifyTimeStamp(string contentToVerify, string signature)
{
if (string.IsNullOrEmpty(contentToVerify))
{
throw new ArgumentNullException("contentToVerify");
}
if (string.IsNullOrEmpty(signature))
{
throw new ArgumentNullException("signature");
}
TimeStampProviderApiResult result = new TimeStampProviderApiResult { IsSuccess = false };
string dataXml = string.Format(RequestTemplates.VerifyRequest, HashHelper.EncodeTo64(HashHelper.HashString(contentToVerify)), signature);
string apiResponse = SendRequest(dataXml, TractisDssClientProperties.ApiVerifyUrl);
if (!string.IsNullOrEmpty(apiResponse))
{
result.ApiResponse = new XmlDocument();
result.ApiResponse.LoadXml(apiResponse);
XmlNamespaceManager tractisDssNamespace = new XmlNamespaceManager(result.ApiResponse.NameTable);
tractisDssNamespace.AddNamespace("dss", "urn:oasis:names:tc:dss:1.0:core:schema");
tractisDssNamespace.AddNamespace("ds", "http://www.w3.org/2000/09/xmldsig#");
result.IsSuccess = result.ApiResponse.SelectSingleNode("//dss:ResultMajor", tractisDssNamespace).InnerText.ToLower().Contains("success") &&
result.ApiResponse.SelectSingleNode("//dss:ResultMinor", tractisDssNamespace).InnerText.ToLower().Contains("onalldocuments");
result.OriginalContent = contentToVerify;
}
return result;
}
public TimeStampProviderApiResult GenerateTimeStamp(string contentToStamp)
{
if (string.IsNullOrEmpty(contentToStamp))
{
throw new ArgumentNullException("contentToStamp");
}
TimeStampProviderApiResult result = new TimeStampProviderApiResult { IsSuccess = false };
string dataXml = string.Format(RequestTemplates.StampRequest, HashHelper.EncodeTo64(contentToStamp));
string apiResponse = SendRequest(dataXml, TractisDssClientProperties.ApiTimeStampUrl);
if (!string.IsNullOrEmpty(apiResponse))
{
result.ApiResponse = new XmlDocument();
result.ApiResponse.LoadXml(apiResponse);
XmlNamespaceManager tractisDssNamespace = new XmlNamespaceManager(result.ApiResponse.NameTable);
tractisDssNamespace.AddNamespace("dss", "urn:oasis:names:tc:dss:1.0:core:schema");
tractisDssNamespace.AddNamespace("ds", "http://www.w3.org/2000/09/xmldsig#");
tractisDssNamespace.AddNamespace("ns3", "urn:oasis:names:tc:dss:1.0:core:schema");
result.IsSuccess =
result.ApiResponse.SelectSingleNode("//dss:ResultMajor", tractisDssNamespace).InnerText.ToLower().Contains("success");
result.Signature = ExtractSignatureString(apiResponse);
result.TimeStampDateTime = DateTime.Parse(result.ApiResponse.SelectSingleNode("//ns3:SignResponse/ns3:OptionalOutputs/ns3:SigningTimeInfo/ns3:SigningTime", tractisDssNamespace).InnerText);
result.OriginalContent = contentToStamp;
string certificateText = result.ApiResponse.SelectSingleNode("//ds:X509Certificate", tractisDssNamespace).InnerText;
X509Certificate certificate = new X509Certificate(HashHelper.StrToByteArray(certificateText));
result.TimeStampExpirationDateTime = DateTime.Parse(certificate.GetExpirationDateString());
}
return result;
}
