/// <summary>
/// Computes the detached digital signature of the given text.
/// </summary>
/// <param name="textToSign">Text to sign.</param>
/// <returns>Detached signature in CMS format and base64 encoding.</returns>
private string ComputeSignature(string textToSign)
{
if (UserCertificate == null)
{
return(null);
}
return(GostCryptoHelpers.ComputeDetachedSignature(UserCertificate, textToSign));
}
public void CertificateCanBeUsedToComputeDetachedCmsSignature()
{
var cert = GetTestCertificate();
var sign = GostCryptoHelpers.ComputeDetachedSignature(cert, "Привет!");
Assert.IsNotNull(sign);
Assert.IsTrue(sign.StartsWith("MII"));
Assert.IsTrue(sign.Length > 1000);
}
/// <summary>
/// 3.1.1. Метод создания заявки на регистрацию УОТ
/// </summary>
public string Register(ProductDocument organizationInfo)
{
var json = Serializer.Serialize(organizationInfo);
var signature = GostCryptoHelpers.ComputeDetachedSignature(UserCertificate, json);
var jsonBase64 = Convert.ToBase64String(Encoding.UTF8.GetBytes(json));
var response = Post <RegistrationResponse>("/elk/registration", new Registration
{
DocumentFormat = Registration.DocumentFormatJson,
ProductDocument = jsonBase64,
Signature = signature,
});
return(response.RegistrationRequestDocID);
}
/// <summary>
/// 4.2.5.1 Ввод в оборот
/// </summary>
public string IntroduceGoodsRF(LP_INTRODUCE_GOODS organizationInfo)
{
throw new NotImplementedException();
var json = Serializer.Serialize(organizationInfo);
var signature = GostCryptoHelpers.ComputeDetachedSignature(UserCertificate, json);
var jsonBase64 = Convert.ToBase64String(Encoding.UTF8.GetBytes(json));
var response = Post <RegistrationResponse>("/elk/registration", new Registration
{
DocumentFormat = Registration.DocumentFormatJson,
ProductDocument = jsonBase64,
Signature = signature,
});
return(response.RegistrationRequestDocID);
}
/// <summary>
/// 4.2.2.1 Аггрегация
/// </summary>
//TODO Можно сделать единый метод отправки доументов
public string Aggregation(AggregationDocument Document)
{
var json = Serializer.Serialize(Document);
var signature = GostCryptoHelpers.ComputeDetachedSignature(UserCertificate, json);
var jsonBase64 = Convert.ToBase64String(Encoding.UTF8.GetBytes(json));
var response = Post("/lk/documents/create", new DocumentBase()
{
DocumentFormat = Registration.DocumentFormatJson,
Document = jsonBase64,
Signature = signature,
Type = Document.DocumentName
},
new Parameter[] { new RestSharp.Parameter("pg", "milk", ParameterType.QueryString) });
return(response);
}
/// <summary>
/// 3.5. Подписание исходящего документа
/// </summary>
/// <param name="docId">Идентификатор документа</param>
/// <param name="xmlFileContents">XML-содержимое документа (опционально: если не передать, документ будет запрошен через API).</param>
public void SignOutgoingDocument(string docId, string xmlFileContents = null)
{
// если документ не передан, получить содержимое документа и подписать его
xmlFileContents = xmlFileContents ?? GetOutgoingDocument(docId);
var docBytes = Encoding.GetEncoding(1251).GetBytes(xmlFileContents);
var signature = GostCryptoHelpers.ComputeDetachedSignature(UserCertificate, docBytes);
var url = "outgoing-documents/{doc_id}/signature";
var request = new RestRequest(url, Method.POST, DataFormat.Json);
request.AddParameter(new Parameter("doc_id", docId, ParameterType.UrlSegment));
request.AddParameter(new Parameter(string.Empty, signature, ParameterType.RequestBody));
request.AddHeader("Content-encoding", "base64");
request.AddHeader("Content-type", "text/plain");
Execute(request);
}
protected virtual void SignRequest(IRestRequest request)
{
// we can sign the request when it's already prepared
// because otherwise we don't have the serialized body
// that's why we have to do it in OnBeforeRequest handler
request.OnBeforeRequest += (IHttp http) =>
{
var data = request.Method == Method.GET ? request.Resource : GetBodyText(request.Body);
var cert = UserCertificate;
var signature = GostCryptoHelpers.ComputeDetachedSignature(cert, data);
// won't be added to headers because the request is already prepared
// we add parameter just for the tracing:
request.Parameters.Add(new Parameter("X-Signature", signature, ParameterType.HttpHeader));
var header = new HttpHeader("X-Signature", signature);
http.Headers.Add(header);
};
}
/// <summary>
/// 3.1. Метод загрузки файла информации продавца УПД согласно приказу 820 от 19.12.2018 № ММВ-7-15/820@ в формате XML
/// </summary>
/// <remarks>
/// * Сервер принимает только документы в кодировке windows-1251.
/// * Трассировка этого метода неполная: multipart/form-data не отображается.
/// </remarks>
/// <param name="fileName">Имя файла, сформированное согласно стандарту формирования</param>
/// <param name="xmlFileContents">Содержимое XML-файла, должно быть согласовано с именем</param>
/// <param name="signed">Подписывать документ перед отсылкой</param>
public string SendSellerUpdDocument(string fileName, string xmlFileContents, bool signed = true)
{
var request = new RestRequest("outgoing-documents", Method.POST, DataFormat.Json);
request.AlwaysMultipartFormData = true;
// сервер принимает XML-документы только в кодировке windows-1251
var content = Encoding.GetEncoding(1251).GetBytes(xmlFileContents);
request.AddFile("content", content, fileName, "application/xml");
// если документ подписывается, то в той же кодировке, что и отсылается
if (signed)
{
var signature = GostCryptoHelpers.ComputeDetachedSignature(UserCertificate, content);
request.Parameters.Add(new Parameter("signature", signature, ParameterType.GetOrPost));
}
var result = Execute <ResID>(request);
return(result.ID);
}
/// <inheritdoc/>
public override AuthToken Authenticate(MdlpClient apiClient)
{
// load the certificate with a private key by userId
var certificate = apiClient.UserCertificate;
if (certificate == null)
{
throw new SecurityException("GOST-compliant certificate not found. " +
"Make sure that the certificate is properly installed and has the associated private key. " +
"Thumbprint or subject name: " + UserID);
}
// get authentication code
var authCode = apiClient.Authenticate(ClientID, ClientSecret, UserID, AuthTypeEnum.SIGNED_CODE);
// compute the signature and save the size
var signature = GostCryptoHelpers.ComputeDetachedSignature(certificate, authCode);
apiClient.SignatureSize = Encoding.UTF8.GetByteCount(signature);
// get authentication token
return(apiClient.GetToken(authCode, signature: signature));
}