/// <summary>
/// Especifica el nodo en el cual se añadira la firma
/// </summary>
/// <param name="elementXPath"></param>
/// <param name="namespaces"></param>
private void SetSignatureDestination(SignatureDocument sigDocument, SignatureXPathExpression destination)
{
XmlNode nodo;
if (destination.Namespaces.Count > 0)
{
XmlNamespaceManager xmlnsMgr = new XmlNamespaceManager(sigDocument.Document.NameTable);
foreach (var item in destination.Namespaces)
{
xmlnsMgr.AddNamespace(item.Key, item.Value);
}
nodo = sigDocument.Document.SelectSingleNode(destination.XPathExpression, xmlnsMgr);
}
else
{
nodo = sigDocument.Document.SelectSingleNode(destination.XPathExpression);
}
if (nodo == null)
{
throw new Exception("Elemento no encontrado");
}
sigDocument.XadesSignature.SignatureNodeDestination = (XmlElement)nodo;
}
public byte[] FirmarAjusteNominaIndividual(byte[] bytesXml, DateTime fecha, int numExtension = 1)
{
var xpathExpression = new SignatureXPathExpression();
xpathExpression.Namespaces.Add("anei", "dian:gov:co:facturaelectronica:NominaIndividualDeAjuste");
xpathExpression.Namespaces.Add("ext", "urn:oasis:names:specification:ubl:schema:xsd:CommonExtensionComponents-2");
xpathExpression.Namespaces.Add("xsi", "http://www.w3.org/2001/XMLSchema-instance");
xpathExpression.Namespaces.Add("xades", "http://uri.etsi.org/01903/v1.3.2#");
xpathExpression.Namespaces.Add("xades141", "http://uri.etsi.org/01903/v1.4.1#");
xpathExpression.XPathExpression = "/anei:NominaIndividualDeAjuste/ext:UBLExtensions/ext:UBLExtension[" + numExtension + "]/ext:ExtensionContent";
return(FirmarDocumento(bytesXml, fecha, xpathExpression));
}
public byte[] FirmarNotaCredito(byte[] bytesXml, DateTime fecha)
{
var xpathExpression = new SignatureXPathExpression();
xpathExpression.Namespaces.Add("fe", "urn:oasis:names:specification:ubl:schema:xsd:CreditNote-2");
xpathExpression.Namespaces.Add("cac", "urn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-2");
xpathExpression.Namespaces.Add("cbc", "urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2");
xpathExpression.Namespaces.Add("ext", "urn:oasis:names:specification:ubl:schema:xsd:CommonExtensionComponents-2");
xpathExpression.Namespaces.Add("xsi", "http://www.w3.org/2001/XMLSchema-instance");
xpathExpression.Namespaces.Add("sts", "dian:gov:co:facturaelectronica:Structures-2-1");
xpathExpression.Namespaces.Add("xades", "http://uri.etsi.org/01903/v1.3.2#");
xpathExpression.Namespaces.Add("xades141", "http://uri.etsi.org/01903/v1.4.1#");
xpathExpression.XPathExpression = "/fe:CreditNote/ext:UBLExtensions/ext:UBLExtension[2]/ext:ExtensionContent";
return(FirmarDocumento(bytesXml, fecha, xpathExpression));
}
protected byte[] FirmarDocumento(byte[] bytesXml, DateTime fecha, SignatureXPathExpression xpathExpression)
{
var xadesService = new XadesService();
var parametros = new SignatureParameters();
parametros.SignatureMethod = SignatureMethod.RSAwithSHA256;
parametros.DigestMethod = DigestMethod.SHA256;
parametros.SigningDate = fecha;
parametros.SignerRole = new SignerRole();
var signerRole = (RolFirmante == RolFirmante.EMISOR ? "supplier" : "third party");
parametros.SignerRole.ClaimedRoles.Add(signerRole);
parametros.SignatureDestination = xpathExpression;
parametros.SignaturePolicyInfo = new SignaturePolicyInfo();
parametros.SignaturePolicyInfo.PolicyIdentifier = "https://facturaelectronica.dian.gov.co/politicadefirma/v2/politicadefirmav2.pdf";
parametros.SignaturePolicyInfo.PolicyHash = "dMoMvtcG5aIzgYo0tIsSQeVJBDnUnfSOfBpxXrmor0Y=";
parametros.SignaturePolicyInfo.PolicyDigestAlgorithm = DigestMethod.SHA256;
parametros.SignaturePackaging = SignaturePackaging.ENVELOPED;
parametros.DataFormat = new DataFormat {
MimeType = "text/xml"
};
using (parametros.Signer = new Signer(new X509Certificate2(RutaCertificado, ClaveCertificado)))
{
using (var stream = new MemoryStream(bytesXml))
{
var signatureDocument = xadesService.Sign(stream, parametros);
var output = new MemoryStream();
signatureDocument.Save(output);
return(output.ToArray());
}
}
}
private void SetSignatureDestination(SignatureDocument sigDocument, SignatureXPathExpression destination)
{
XmlNode xmlNode;
if (destination.Namespaces.Count > 0)
{
XmlNamespaceManager xmlNamespaceManager = new XmlNamespaceManager(sigDocument.Document.NameTable);
foreach (KeyValuePair <string, string> @namespace in destination.Namespaces)
{
xmlNamespaceManager.AddNamespace(@namespace.Key, @namespace.Value);
}
xmlNode = sigDocument.Document.SelectSingleNode(destination.XPathExpression, xmlNamespaceManager);
}
else
{
xmlNode = sigDocument.Document.SelectSingleNode(destination.XPathExpression);
}
if (xmlNode == null)
{
throw new Exception("Elemento no encontrado");
}
sigDocument.XadesSignature.SignatureNodeDestination = (XmlElement)xmlNode;
}
