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

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

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import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    // 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>

    boolean success = true;

    CkXmlDSigGen gen = new CkXmlDSigGen();

    gen.put_SigLocation("DTE");
    gen.put_SigLocationMod(0);
    gen.put_SigNamespacePrefix("");
    gen.put_SigNamespaceUri("http://www.w3.org/2000/09/xmldsig#");
    gen.put_SignedInfoCanonAlg("C14N");
    gen.put_SignedInfoDigestMethod("sha1");

    // -------- Reference 1 --------
    gen.AddSameDocRef("F13T34","sha1","","","");

    // Provide a certificate + private key. (PFX password is test123)
    CkCert cert = new CkCert();
    success = cert.LoadPfxFile("qa_data/pfx/cert_test123.pfx","test123");
    if (success != true) {
        System.out.println(cert.lastErrorText());
        return;
        }

    gen.SetX509Cert(cert,true);

    gen.put_KeyInfoType("X509Data+KeyValue");
    gen.put_X509Type("Certificate");

    // Load XML to be signed...
    CkStringBuilder sbXml = new CkStringBuilder();
    success = sbXml.LoadFile("qa_data/xml_dsig/sii_cl/xmlToSign.xml","iso-8859-1");
    if (success == false) {
        System.out.println("Failed to load XML file.");
        return;
        }

    gen.put_Behaviors("IndentedSignature");

    // Sign the XML...
    success = gen.CreateXmlDSigSb(sbXml);
    if (success != true) {
        System.out.println(gen.lastErrorText());
        return;
        }

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

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

    System.out.println(sbXml.getAsString());

    // ----------------------------------------
    // Verify the signatures we just produced...
    CkXmlDSig verifier = new CkXmlDSig();
    success = verifier.LoadSignatureSb(sbXml);
    if (success != true) {
        System.out.println(verifier.lastErrorText());
        return;
        }

    int numSigs = verifier.get_NumSignatures();
    int verifyIdx = 0;
    while (verifyIdx < numSigs) {
        verifier.put_Selector(verifyIdx);
        boolean verified = verifier.VerifySignature(true);
        if (verified != true) {
            System.out.println(verifier.lastErrorText());
            return;
            }

        verifyIdx = verifyIdx+1;
        }

    System.out.println("All signatures were successfully verified.");
  }
}