(PureBasic) Create sii.cl Factura Electrónica (Chile Servicio de Impuestos Internos)

Demonstrates how to sign an XML invoice according to Chilean Internal Revenue Service regulations.

Chilkat PureBasic Module Download Chilkat PureBasic Module

IncludeFile "CkStringBuilder.pb"
IncludeFile "CkCert.pb"
IncludeFile "CkXmlDSigGen.pb"
IncludeFile "CkXmlDSig.pb"

Procedure ChilkatExample()

    ; This example assumes the Chilkat API to have been previously unlocked.
    ; See Global Unlock Sample for sample code.

    ; See: Apply 2nd Signature to sii.cl Factura Electr�nica (Chile Servicio de Impuestos Internos)
    ; for an example showing how to apply a 2nd signature.

    ; We want to sign XML that looks like the following:

    ; <?xml version="1.0" encoding="iso-8859-1"?>
    ; <DTE version="1.0" xmlns="http://www.sii.cl/SiiDte">
    ;     <Documento ID="F13T34">
    ;         <Encabezado>
    ;             <IdDoc>
    ;                 <TipoDTE>34</TipoDTE>
    ;                 <Folio>13</Folio>
    ;                 <FchEmis>2020-07-17</FchEmis>
    ;                 <FmaPago>1</FmaPago>
    ;                 <FchVenc>2020-07-17</FchVenc>
    ;             </IdDoc>
    ;             <Emisor>
    ;                 <RUTEmisor>...</RUTEmisor>
    ;                 <RznSoc>...</RznSoc>
    ;                 <GiroEmis>...</GiroEmis>
    ;                 <Acteco>...</Acteco>
    ;                 <DirOrigen>...</DirOrigen>
    ;                 <CmnaOrigen>...</CmnaOrigen>
    ;                 <CiudadOrigen>...</CiudadOrigen>
    ;             </Emisor>
    ;             <Receptor>
    ;                 <RUTRecep>...</RUTRecep>
    ;                 <RznSocRecep>...</RznSocRecep>
    ;                 <GiroRecep>...</GiroRecep>
    ;                 <Contacto/>
    ;                 <DirRecep>...</DirRecep>
    ;                 <CmnaRecep>...</CmnaRecep>
    ;                 <CiudadRecep>...</CiudadRecep>
    ;             </Receptor>
    ;             <Totales>
    ;                 <MntExe>14999</MntExe>
    ;                 <MntTotal>14999</MntTotal>
    ;             </Totales>
    ;         </Encabezado>
    ;         <Detalle>
    ;             <NroLinDet>1</NroLinDet>
    ;             <CdgItem>
    ;                 <TpoCodigo>INT</TpoCodigo>
    ;                 <VlrCodigo>1</VlrCodigo>
    ;             </CdgItem>
    ;             <NmbItem>Atencin profesional mes de Junio 2020</NmbItem>
    ;             <QtyItem>1</QtyItem>
    ;             <UnmdItem>UNI</UnmdItem>
    ;             <PrcItem>14999</PrcItem>
    ;             <MontoItem>14999</MontoItem>
    ;         </Detalle>
    ;         <TED version="1.0">
    ;             <DD>
    ;                 <RE>99972220-K</RE>
    ;                 <TD>34</TD>
    ;                 <F>13</F>
    ;                 <FE>2020-07-17</FE>
    ;                 <RR>99942999-2</RR>
    ;                 <RSR>...</RSR>
    ;                 <MNT>14999</MNT>
    ;                 <IT1>Atencion profesional mes de Junio 2020</IT1>
    ;                 <CAF version="1.0">
    ;                     <DA>
    ;                         <RE>99972220-K</RE>
    ;                         <RS>...</RS>
    ;                         <TD>34</TD>
    ;                         <RNG>
    ;                             <D>3</D>
    ;                             <H>12</H>
    ;                         </RNG>
    ;                         <FA>2019-10-10</FA>
    ;                         <RSAPK>
    ;                             <M>2zHVYpcVNQRvS2yFuqdrh...TEQZx/m0t9HVTgWKZvlc6LSQ==</M>
    ;                             <E>Aw==</E>
    ;                         </RSAPK>
    ;                         <IDK>300</IDK>
    ;                     </DA>
    ;                     <FRMA algoritmo="SHA1withRSA">LaVkjISGu...sBtsQL1jR9lw==</FRMA>
    ;                 </CAF>
    ;                 <TSTED>2020-07-17T13:19:10</TSTED>
    ;             </DD>
    ;             <FRMT algoritmo="SHA1withRSA">LxZr6zmXRZIfTz7...IXS6sp4vfz2fIsA==</FRMT>
    ;         </TED>
    ;         <TmstFirma>2020-07-17T13:19:10</TmstFirma>
    ;     </Documento>
    ; </DTE>

    success.i = 1

    gen.i = CkXmlDSigGen::ckCreate()
    If gen.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    CkXmlDSigGen::setCkSigLocation(gen, "DTE")
    CkXmlDSigGen::setCkSigLocationMod(gen, 0)
    CkXmlDSigGen::setCkSigNamespacePrefix(gen, "")
    CkXmlDSigGen::setCkSigNamespaceUri(gen, "http://www.w3.org/2000/09/xmldsig#")
    CkXmlDSigGen::setCkSignedInfoCanonAlg(gen, "C14N")
    CkXmlDSigGen::setCkSignedInfoDigestMethod(gen, "sha1")

    ; -------- Reference 1 --------
    CkXmlDSigGen::ckAddSameDocRef(gen,"F13T34","sha1","","","")

    ; Provide a 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)
        CkXmlDSigGen::ckDispose(gen)
        CkCert::ckDispose(cert)
        ProcedureReturn
    EndIf

    CkXmlDSigGen::ckSetX509Cert(gen,cert,1)

    CkXmlDSigGen::setCkKeyInfoType(gen, "X509Data+KeyValue")
    CkXmlDSigGen::setCkX509Type(gen, "Certificate")

    ; Load XML to be signed...
    sbXml.i = CkStringBuilder::ckCreate()
    If sbXml.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    success = CkStringBuilder::ckLoadFile(sbXml,"qa_data/xml_dsig/sii_cl/xmlToSign.xml","iso-8859-1")
    If success = 0
        Debug "Failed to load XML file."
        CkXmlDSigGen::ckDispose(gen)
        CkCert::ckDispose(cert)
        CkStringBuilder::ckDispose(sbXml)
        ProcedureReturn
    EndIf

    CkXmlDSigGen::setCkBehaviors(gen, "IndentedSignature")

    ; Sign the XML...
    success = CkXmlDSigGen::ckCreateXmlDSigSb(gen,sbXml)
    If success <> 1
        Debug CkXmlDSigGen::ckLastErrorText(gen)
        CkXmlDSigGen::ckDispose(gen)
        CkCert::ckDispose(cert)
        CkStringBuilder::ckDispose(sbXml)
        ProcedureReturn
    EndIf

    ; -----------------------------------------------

    ; Save the signed XML to a file.
    success = CkStringBuilder::ckWriteFile(sbXml,"qa_data/xml_dsig/sii_cl/signed1.xml","iso-8859-1",0)

    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)
        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)
            CkXmlDSigGen::ckDispose(gen)
            CkCert::ckDispose(cert)
            CkStringBuilder::ckDispose(sbXml)
            CkXmlDSig::ckDispose(verifier)
            ProcedureReturn
        EndIf

        verifyIdx = verifyIdx + 1
    Wend
    Debug "All signatures were successfully verified."


    CkXmlDSigGen::ckDispose(gen)
    CkCert::ckDispose(cert)
    CkStringBuilder::ckDispose(sbXml)
    CkXmlDSig::ckDispose(verifier)


    ProcedureReturn
EndProcedure