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(PureBasic) Sign Bolivia Invoice XMLSee more XML Digital Signatures ExamplesDemonstrates how to create an XML digital signature (XmlDSig) for a Bolivia invoice (factura).
IncludeFile "CkCert.pb" IncludeFile "CkXml.pb" IncludeFile "CkXmlDSigGen.pb" IncludeFile "CkXmlDSig.pb" IncludeFile "CkStringBuilder.pb" Procedure ChilkatExample() ; This example assumes the Chilkat API to have been previously unlocked. ; See Global Unlock Sample for sample code. success.i = 1 ; Create the following XML to be signed: ; <?xml version="1.0" encoding="UTF-8"?> ; <facturaElectronicaCompraVenta xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="facturaElectronicaCompraVenta.xsd"> ; <cabecera> ; <nitEmisor>99999999</nitEmisor> ; <razonSocialEmisor>Abc Xyz</razonSocialEmisor> ; <municipio>Cochabamba - Cochabamba</municipio> ; <telefono>4444444</telefono> ; <numeroFactura>417</numeroFactura> ; <cuf>ABABABABABABABABABABABABABABABABABABABABABABABABABABABABA</cuf> ; <cufd>xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx</cufd> ; <codigoSucursal>0</codigoSucursal> ; <direccion>aaa aaa aaa</direccion> ; <codigoPuntoVenta>1</codigoPuntoVenta> ; <fechaEmision>2023-04-13T22:43:22.417</fechaEmision> ; <nombreRazonSocial>xyz</nombreRazonSocial> ; <codigoTipoDocumentoIdentidad>1</codigoTipoDocumentoIdentidad> ; <numeroDocumento>1234567</numeroDocumento> ; <complemento xsi:nil="true"/> ; <codigoCliente>1234567</codigoCliente> ; <codigoMetodoPago>1</codigoMetodoPago> ; <numeroTarjeta xsi:nil="true"/> ; <montoTotal>22.00</montoTotal> ; <montoTotalSujetoIva>22.00</montoTotalSujetoIva> ; <codigoMoneda>1</codigoMoneda> ; <tipoCambio>1.00</tipoCambio> ; <montoTotalMoneda>22.00</montoTotalMoneda> ; <montoGiftCard xsi:nil="true"/> ; <descuentoAdicional>0.00</descuentoAdicional> ; <codigoExcepcion>1</codigoExcepcion> ; <cafc xsi:nil="true"/> ; <leyenda>Ley N 453: El proveedor de servicios debe habilitar medios e instrumentos para efectuar consultas y reclamaciones.</leyenda> ; <usuario>nromero</usuario> ; <codigoDocumentoSector>1</codigoDocumentoSector> ; </cabecera> ; <detalle> ; <actividadEconomica>620100</actividadEconomica> ; <codigoProductoSin>123456</codigoProductoSin> ; <codigoProducto>1</codigoProducto> ; <descripcion>Economicos</descripcion> ; <cantidad>1.00</cantidad> ; <unidadMedida>58</unidadMedida> ; <precioUnitario>22.00</precioUnitario> ; <montoDescuento>0.00</montoDescuento> ; <subTotal>22.00</subTotal> ; <numeroSerie xsi:nil="true"/> ; <numeroImei xsi:nil="true"/> ; </detalle> ; </facturaElectronicaCompraVenta> ; Use this online tool to generate code from sample XML: ; Generate Code to Create XML xml.i = CkXml::ckCreate() If xml.i = 0 Debug "Failed to create object." ProcedureReturn EndIf CkXml::setCkTag(xml, "facturaElectronicaCompraVenta") CkXml::ckAddAttribute(xml,"xmlns:xsi","http://www.w3.org/2001/XMLSchema-instance") CkXml::ckAddAttribute(xml,"xsi:noNamespaceSchemaLocation","facturaElectronicaCompraVenta.xsd") CkXml::ckUpdateChildContent(xml,"cabecera|nitEmisor","99999999") CkXml::ckUpdateChildContent(xml,"cabecera|razonSocialEmisor","Abc Xyz") CkXml::ckUpdateChildContent(xml,"cabecera|municipio","Cochabamba - Cochabamba") CkXml::ckUpdateChildContent(xml,"cabecera|telefono","4444444") CkXml::ckUpdateChildContent(xml,"cabecera|numeroFactura","417") CkXml::ckUpdateChildContent(xml,"cabecera|cuf","ABABABABABABABABABABABABABABABABABABABABABABABABABABABABA") CkXml::ckUpdateChildContent(xml,"cabecera|cufd","xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx") CkXml::ckUpdateChildContent(xml,"cabecera|codigoSucursal","0") CkXml::ckUpdateChildContent(xml,"cabecera|direccion","aaa aaa aaa") CkXml::ckUpdateChildContent(xml,"cabecera|codigoPuntoVenta","1") CkXml::ckUpdateChildContent(xml,"cabecera|fechaEmision","2023-04-13T22:43:22.417") CkXml::ckUpdateChildContent(xml,"cabecera|nombreRazonSocial","xyz") CkXml::ckUpdateChildContent(xml,"cabecera|codigoTipoDocumentoIdentidad","1") CkXml::ckUpdateChildContent(xml,"cabecera|numeroDocumento","1234567") CkXml::ckUpdateAttrAt(xml,"cabecera|complemento",1,"xsi:nil","true") CkXml::ckUpdateChildContent(xml,"cabecera|codigoCliente","1234567") CkXml::ckUpdateChildContent(xml,"cabecera|codigoMetodoPago","1") CkXml::ckUpdateAttrAt(xml,"cabecera|numeroTarjeta",1,"xsi:nil","true") CkXml::ckUpdateChildContent(xml,"cabecera|montoTotal","22.00") CkXml::ckUpdateChildContent(xml,"cabecera|montoTotalSujetoIva","22.00") CkXml::ckUpdateChildContent(xml,"cabecera|codigoMoneda","1") CkXml::ckUpdateChildContent(xml,"cabecera|tipoCambio","1.00") CkXml::ckUpdateChildContent(xml,"cabecera|montoTotalMoneda","22.00") CkXml::ckUpdateAttrAt(xml,"cabecera|montoGiftCard",1,"xsi:nil","true") CkXml::ckUpdateChildContent(xml,"cabecera|descuentoAdicional","0.00") CkXml::ckUpdateChildContent(xml,"cabecera|codigoExcepcion","1") CkXml::ckUpdateAttrAt(xml,"cabecera|cafc",1,"xsi:nil","true") CkXml::ckUpdateChildContent(xml,"cabecera|leyenda","Ley N 453: El proveedor de servicios debe habilitar medios e instrumentos para efectuar consultas y reclamaciones.") CkXml::ckUpdateChildContent(xml,"cabecera|usuario","nromero") CkXml::ckUpdateChildContent(xml,"cabecera|codigoDocumentoSector","1") CkXml::ckUpdateChildContent(xml,"detalle|actividadEconomica","620100") CkXml::ckUpdateChildContent(xml,"detalle|codigoProductoSin","123456") CkXml::ckUpdateChildContent(xml,"detalle|codigoProducto","1") CkXml::ckUpdateChildContent(xml,"detalle|descripcion","Economicos") CkXml::ckUpdateChildContent(xml,"detalle|cantidad","1.00") CkXml::ckUpdateChildContent(xml,"detalle|unidadMedida","58") CkXml::ckUpdateChildContent(xml,"detalle|precioUnitario","22.00") CkXml::ckUpdateChildContent(xml,"detalle|montoDescuento","0.00") CkXml::ckUpdateChildContent(xml,"detalle|subTotal","22.00") CkXml::ckUpdateAttrAt(xml,"detalle|numeroSerie",1,"xsi:nil","true") CkXml::ckUpdateAttrAt(xml,"detalle|numeroImei",1,"xsi:nil","true") gen.i = CkXmlDSigGen::ckCreate() If gen.i = 0 Debug "Failed to create object." ProcedureReturn EndIf CkXmlDSigGen::setCkSigLocation(gen, "facturaElectronicaCompraVenta") CkXmlDSigGen::setCkSigLocationMod(gen, 0) CkXmlDSigGen::setCkSigNamespacePrefix(gen, "") CkXmlDSigGen::setCkSigNamespaceUri(gen, "http://www.w3.org/2000/09/xmldsig#") CkXmlDSigGen::setCkSignedInfoCanonAlg(gen, "C14N") CkXmlDSigGen::setCkSignedInfoDigestMethod(gen, "sha256") CkXmlDSigGen::ckAddSameDocRef(gen,"","sha256","C14N_WithComments","","") ; Provide your certificate + private key. (PFX password is test123) cert.i = CkCert::ckCreate() If cert.i = 0 Debug "Failed to create object." ProcedureReturn EndIf success = CkCert::ckLoadPfxFile(cert,"qa_data/pfx/cert_test123.pfx","test123") If success <> 1 Debug CkCert::ckLastErrorText(cert) CkXml::ckDispose(xml) CkXmlDSigGen::ckDispose(gen) CkCert::ckDispose(cert) ProcedureReturn EndIf CkXmlDSigGen::ckSetX509Cert(gen,cert,1) CkXmlDSigGen::setCkKeyInfoType(gen, "X509Data") CkXmlDSigGen::setCkX509Type(gen, "Certificate") CkXmlDSigGen::setCkBehaviors(gen, "EnvelopedTransformFirst") ; Load XML to be signed... sbXml.i = CkStringBuilder::ckCreate() If sbXml.i = 0 Debug "Failed to create object." ProcedureReturn EndIf CkXml::setCkEmitCompact(xml, 1) CkXml::ckGetXmlSb(xml,sbXml) ; Sign the XML... success = CkXmlDSigGen::ckCreateXmlDSigSb(gen,sbXml) If success <> 1 Debug CkXmlDSigGen::ckLastErrorText(gen) CkXml::ckDispose(xml) CkXmlDSigGen::ckDispose(gen) CkCert::ckDispose(cert) CkStringBuilder::ckDispose(sbXml) ProcedureReturn EndIf ; ----------------------------------------------- ; Save the signed XML to a file. success = CkStringBuilder::ckWriteFile(sbXml,"qa_output/signedXml.xml","utf-8",1) Debug CkStringBuilder::ckGetAsString(sbXml) ; ---------------------------------------- ; Verify the signatures we just produced... verifier.i = CkXmlDSig::ckCreate() If verifier.i = 0 Debug "Failed to create object." ProcedureReturn EndIf success = CkXmlDSig::ckLoadSignatureSb(verifier,sbXml) If success <> 1 Debug CkXmlDSig::ckLastErrorText(verifier) CkXml::ckDispose(xml) CkXmlDSigGen::ckDispose(gen) CkCert::ckDispose(cert) CkStringBuilder::ckDispose(sbXml) CkXmlDSig::ckDispose(verifier) ProcedureReturn EndIf numSigs.i = CkXmlDSig::ckNumSignatures(verifier) verifyIdx.i = 0 While verifyIdx < numSigs CkXmlDSig::setCkSelector(verifier, verifyIdx) verified.i = CkXmlDSig::ckVerifySignature(verifier,1) If verified <> 1 Debug CkXmlDSig::ckLastErrorText(verifier) CkXml::ckDispose(xml) CkXmlDSigGen::ckDispose(gen) CkCert::ckDispose(cert) CkStringBuilder::ckDispose(sbXml) CkXmlDSig::ckDispose(verifier) ProcedureReturn EndIf verifyIdx = verifyIdx + 1 Wend Debug "All signatures were successfully verified." CkXml::ckDispose(xml) CkXmlDSigGen::ckDispose(gen) CkCert::ckDispose(cert) CkStringBuilder::ckDispose(sbXml) CkXmlDSig::ckDispose(verifier) ProcedureReturn EndProcedure |
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