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Pascal (Lazarus/Delphi)

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

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

Chilkat Pascal (Lazarus/Delphi) Downloads

Pascal (Lazarus/Delphi)
program ChilkatDemo;

// Demonstrates using the Chilkat Pascal wrapper via the C bridge DLL.
// Builds as a console application under Lazarus (FPC) or Delphi.

{$IFDEF FPC}
  {$MODE DELPHI}
{$ENDIF}
{$APPTYPE CONSOLE}

uses
  {$IFDEF UNIX}
  cthreads,
  {$ENDIF}
  SysUtils,
  CkDllLoader,
  Chilkat.StringBuilder,
  Chilkat.XmlDSigGen,
  Chilkat.Cert,
  Chilkat.XmlDSig;

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

procedure RunDemo;
var
  success: Boolean;
  gen: TXmlDSigGen;
  cert: TCert;
  sbXml: TStringBuilder;
  verifier: TXmlDSig;
  numSigs: Integer;
  verifyIdx: Integer;
  verified: Boolean;

begin
  success := False;

  //  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>Atenci�n 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 := True;

  gen := TXmlDSigGen.Create;

  gen.SigLocation := 'DTE';
  gen.SigLocationMod := 0;
  gen.SigNamespacePrefix := '';
  gen.SigNamespaceUri := 'http://www.w3.org/2000/09/xmldsig#';
  gen.SignedInfoCanonAlg := 'C14N';
  gen.SignedInfoDigestMethod := 'sha1';

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

  //  Provide a certificate + private key. (PFX password is test123)
  cert := TCert.Create;
  success := cert.LoadPfxFile('qa_data/pfx/cert_test123.pfx','test123');
  if (success <> True) then
    begin
      WriteLn(cert.LastErrorText);
      Exit;
    end;
  gen.SetX509Cert(cert,True);

  gen.KeyInfoType := 'X509Data+KeyValue';
  gen.X509Type := 'Certificate';

  //  Load XML to be signed...
  sbXml := TStringBuilder.Create;
  success := sbXml.LoadFile('qa_data/xml_dsig/sii_cl/xmlToSign.xml','iso-8859-1');
  if (success = False) then
    begin
      WriteLn('Failed to load XML file.');
      Exit;
    end;

  gen.Behaviors := 'IndentedSignature';

  //  Sign the XML...
  success := gen.CreateXmlDSigSb(sbXml);
  if (success <> True) then
    begin
      WriteLn(gen.LastErrorText);
      Exit;
    end;
  //  -----------------------------------------------

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

  WriteLn(sbXml.GetAsString());

  //  ----------------------------------------
  //  Verify the signatures we just produced...
  verifier := TXmlDSig.Create;
  success := verifier.LoadSignatureSb(sbXml);
  if (success <> True) then
    begin
      WriteLn(verifier.LastErrorText);
      Exit;
    end;

  numSigs := verifier.NumSignatures;
  verifyIdx := 0;
  while verifyIdx < numSigs do
    begin
      verifier.Selector := verifyIdx;
      verified := verifier.VerifySignature(True);
      if (verified <> True) then
        begin
          WriteLn(verifier.LastErrorText);
          Exit;
        end;
      verifyIdx := verifyIdx + 1;
    end;

  WriteLn('All signatures were successfully verified.');


  gen.Free;
  cert.Free;
  sbXml.Free;
  verifier.Free;

end;

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

begin

  try
    RunDemo;
  except
    on E: Exception do
      WriteLn('Unhandled exception: ', E.ClassName, ': ', E.Message);
  end;

  WriteLn;
  {$IFDEF MSWINDOWS}
  WriteLn('Press Enter to exit...');
  ReadLn;
  {$ENDIF}
end.