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Dart

TicketBAI Sign XML Example 1

See more TicketBAI Examples

First example to demonstrate how to sign XML for TicketBAI.

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Dart
import 'package:chilkat/chilkat.dart';

void main() {
  // This example requires the Chilkat API to have been previously unlocked.
  // See Global Unlock Sample for sample code.

  // Create the XML to be signed...
  final xmlToSign = CkXml();
  xmlToSign.tag = 'T:TicketBai';
  xmlToSign.addAttribute('xmlns:T', 'urn:ticketbai:emision');
  xmlToSign.updateChildContent('Cabecera|IDVersionTBAI', '1.2');
  xmlToSign.updateChildContent('Sujetos|Emisor|NIF', '79732487C');
  xmlToSign.updateChildContent('Sujetos|Emisor|ApellidosNombreRazonSocial', 'ARRIOLA LEJARDI ANE');
  xmlToSign.updateChildContent('Sujetos|Destinatarios|IDDestinatario|NIF', 'B00000034');
  xmlToSign.updateChildContent('Sujetos|Destinatarios|IDDestinatario|ApellidosNombreRazonSocial', 'CONSULTORIA GALDETU');
  xmlToSign.updateChildContent('Factura|CabeceraFactura|SerieFactura', 'A2022');
  xmlToSign.updateChildContent('Factura|CabeceraFactura|NumFactura', '0399');
  xmlToSign.updateChildContent('Factura|CabeceraFactura|FechaExpedicionFactura', '06-05-2022');
  xmlToSign.updateChildContent('Factura|CabeceraFactura|HoraExpedicionFactura', '10:30:28');
  xmlToSign.updateChildContent('Factura|DatosFactura|DescripcionFactura', 'Venta Fotocopister�a');
  xmlToSign.updateChildContent('Factura|DatosFactura|ImporteTotalFactura', '31.46');
  xmlToSign.updateChildContent('Factura|DatosFactura|Claves|IDClave|ClaveRegimenIvaOpTrascendencia', '01');
  xmlToSign.updateChildContent('Factura|TipoDesglose|DesgloseFactura|Sujeta|NoExenta|DetalleNoExenta|TipoNoExenta', 'S1');
  xmlToSign.updateChildContent('Factura|TipoDesglose|DesgloseFactura|Sujeta|NoExenta|DetalleNoExenta|DesgloseIVA|DetalleIVA|BaseImponible', '26.00');
  xmlToSign.updateChildContent('Factura|TipoDesglose|DesgloseFactura|Sujeta|NoExenta|DetalleNoExenta|DesgloseIVA|DetalleIVA|TipoImpositivo', '21.00');
  xmlToSign.updateChildContent('Factura|TipoDesglose|DesgloseFactura|Sujeta|NoExenta|DetalleNoExenta|DesgloseIVA|DetalleIVA|CuotaImpuesto', '5.46');
  xmlToSign.updateChildContent('HuellaTBAI|EncadenamientoFacturaAnterior|SerieFacturaAnterior', 'A2022');
  xmlToSign.updateChildContent('HuellaTBAI|EncadenamientoFacturaAnterior|NumFacturaAnterior', '0398');
  xmlToSign.updateChildContent('HuellaTBAI|EncadenamientoFacturaAnterior|FechaExpedicionFacturaAnterior', '05-05-2022');
  xmlToSign.updateChildContent('HuellaTBAI|EncadenamientoFacturaAnterior|SignatureValueFirmaFacturaAnterior', 'KwXaQec65SKpVP7EU9o4nUXOx7SAftIToFsxH+2j2tXPXhpBUnS26dhdSpiMl2DlTuqRsFdZfWyYazaGHgSRQHZZAnFtpbi4BeMk');
  xmlToSign.updateChildContent('HuellaTBAI|Software|LicenciaTBAI', 'TBAIPRUEBA');
  xmlToSign.updateChildContent('HuellaTBAI|Software|EntidadDesarrolladora|NIF', 'A48119820');
  xmlToSign.updateChildContent('HuellaTBAI|Software|Nombre', 'DFBTBAI');
  xmlToSign.updateChildContent('HuellaTBAI|Software|Version', '1.04.00');
  xmlToSign.updateChildContent('HuellaTBAI|NumSerieDispositivo', 'GP4FC5J');

  final gen = CkXmlDSigGen();

  gen.sigLocation = 'T:TicketBai';
  gen.sigLocationMod = 0;
  gen.sigId = 'Signature-63c35f38-2b5f-4600-b3da-3ddee86d62b3-Signature';
  gen.sigNamespacePrefix = 'ds';
  gen.sigNamespaceUri = 'http://www.w3.org/2000/09/xmldsig#';
  gen.sigValueId = 'Signature-63c35f38-2b5f-4600-b3da-3ddee86d62b3-SignatureValue';
  gen.signedInfoCanonAlg = 'C14N';
  gen.signedInfoDigestMethod = 'sha256';

  // Set the KeyInfoId before adding references..
  gen.keyInfoId = 'Signature-63c35f38-2b5f-4600-b3da-3ddee86d62b3-KeyInfo';

  // Create an Object to be added to the Signature.
  final object1 = CkXml();
  object1.tag = 'xades:QualifyingProperties';
  object1.addAttribute('xmlns:xades', 'http://uri.etsi.org/01903/v1.3.2#');
  object1.addAttribute('Id', 'Signature-63c35f38-2b5f-4600-b3da-3ddee86d62b3-QualifyingProperties');
  object1.addAttribute('Target', '#Signature-63c35f38-2b5f-4600-b3da-3ddee86d62b3-Signature');
  object1.addAttribute('xmlns:ds', 'http://www.w3.org/2000/09/xmldsig#');
  object1.updateAttrAt('xades:SignedProperties', true, 'Id', 'Signature-63c35f38-2b5f-4600-b3da-3ddee86d62b3-SignedProperties');
  object1.updateChildContent('xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningTime', 'TO BE GENERATED BY CHILKAT');
  object1.updateAttrAt('xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificateV2|xades:Cert|xades:CertDigest|ds:DigestMethod', true, 'Algorithm', 'http://www.w3.org/2001/04/xmlenc#sha512');
  object1.updateChildContent('xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificateV2|xades:Cert|xades:CertDigest|ds:DigestValue', 'TO BE GENERATED BY CHILKAT');
  object1.updateChildContent('xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificateV2|xades:Cert|xades:IssuerSerialV2', 'TO BE GENERATED BY CHILKAT');
  object1.updateChildContent('xades:SignedProperties|xades:SignedSignatureProperties|xades:SignaturePolicyIdentifier|xades:SignaturePolicyId|xades:SigPolicyId|xades:Identifier', 'https://www.batuz.eus/fitxategiak/batuz/ticketbai/sinadura_elektronikoaren_zehaztapenak_especificaciones_de_la_firma_electronica_v1_0.pdf');
  object1.updateChildContent('xades:SignedProperties|xades:SignedSignatureProperties|xades:SignaturePolicyIdentifier|xades:SignaturePolicyId|xades:SigPolicyId|xades:Description', '');
  object1.updateAttrAt('xades:SignedProperties|xades:SignedSignatureProperties|xades:SignaturePolicyIdentifier|xades:SignaturePolicyId|xades:SigPolicyHash|ds:DigestMethod', true, 'Algorithm', 'http://www.w3.org/2001/04/xmlenc#sha256');
  object1.updateChildContent('xades:SignedProperties|xades:SignedSignatureProperties|xades:SignaturePolicyIdentifier|xades:SignaturePolicyId|xades:SigPolicyHash|ds:DigestValue', 'Quzn98x3PMbSHwbUzaj5f5KOpiH0u8bvmwbbbNkO9Es=');
  object1.updateChildContent('xades:SignedProperties|xades:SignedSignatureProperties|xades:SignaturePolicyIdentifier|xades:SignaturePolicyId|xades:SigPolicyQualifiers|xades:SigPolicyQualifier|xades:SPURI', 'https://www.batuz.eus/fitxategiak/batuz/ticketbai/sinadura_elektronikoaren_zehaztapenak_especificaciones_de_la_firma_electronica_v1_0.pdf');
  object1.updateAttrAt('xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat', true, 'ObjectReference', '#Reference-7e6f3481-4acc-47de-90fd-67878ad15e8e');
  object1.updateChildContent('xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:Description', '');
  object1.updateAttrAt('xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:ObjectIdentifier|xades:Identifier', true, 'Qualifier', 'OIDAsURN');
  object1.updateChildContent('xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:ObjectIdentifier|xades:Identifier', 'urn:oid:1.2.840.10003.5.109.10');
  object1.updateChildContent('xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:ObjectIdentifier|xades:Description', '');
  object1.updateChildContent('xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:MimeType', 'text/xml');
  object1.updateChildContent('xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:Encoding', '');

  gen.addObject('', object1.getXml(), '', '');

  // -------- Reference 1 --------
  gen.addSameDocRef('', 'sha512', 'C14N', '', 'http://www.w3.org/2000/09/xmldsig#Object');
  gen.setRefIdAttr('', 'Reference-7e6f3481-4acc-47de-90fd-67878ad15e8e');

  // -------- Reference 2 --------
  gen.addObjectRef('Signature-63c35f38-2b5f-4600-b3da-3ddee86d62b3-SignedProperties', 'sha512', '', '', 'http://uri.etsi.org/01903#SignedProperties');

  // -------- Reference 3 --------
  gen.addSameDocRef('Signature-63c35f38-2b5f-4600-b3da-3ddee86d62b3-KeyInfo', 'sha512', '', '', '');

  // Provide a certificate + private key. (PFX password is test123)
  final cert = CkCert();
  try {
    cert.loadPfxFile('qa_data/pfx/cert_test123.pfx', 'test123');
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  gen.setX509Cert(cert, true);

  gen.keyInfoType = 'X509Data+KeyValue';
  gen.x509Type = 'Certificate';

  // Load XML to be signed...
  final sbXml = CkStringBuilder();
  xmlToSign.getXmlSb(sbXml);

  gen.behaviors = 'TransformSignatureXPath';

  // Sign the XML...
  try {
    gen.createXmlDSigSb(sbXml);
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  // -----------------------------------------------

  // Save the signed XML to a file.
  sbXml.writeFile('qa_output/signedXml_1.xml', 'utf-8', false);

  print(sbXml.getAsString());

  // ----------------------------------------
  // Verify the signatures we just produced...
  final verifier = CkXmlDSig();
  try {
    verifier.loadSignatureSb(sbXml);
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  final numSigs = verifier.numSignatures;
  var verifyIdx = 0;
  while (verifyIdx < numSigs) {
    verifier.selector = verifyIdx;
    try {
      verifier.verifySignature(true);
    } on ChilkatException catch (e) {
      print(e.lastErrorText);
      return;
    }

    verifyIdx++;
  }

  print('All signatures were successfully verified.');
}