B4X

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. B4X

Dim success As Boolean = 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

Dim gen As ChilkatXmlDSigGen
gen.Initialize("gen")

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)
Dim cert As ChilkatCert
cert.Initialize("cert")
success = cert.LoadPfxFile("qa_data/pfx/cert_test123.pfx", "test123")
If success <> True Then
    Log(cert.LastErrorText)
    Return
End If

gen.SetX509Cert(cert, True)

gen.KeyInfoType = "X509Data+KeyValue"
gen.X509Type = "Certificate"

'  Load XML to be signed...
Dim sbXml As ChilkatStringBuilder
sbXml.Initialize
success = sbXml.LoadFile("qa_data/xml_dsig/sii_cl/xmlToSign.xml", "iso-8859-1")
If success = False Then
    Log("Failed to load XML file.")
    Return
End If


gen.Behaviors = "IndentedSignature"

'  Sign the XML...
success = gen.CreateXmlDSigSb(sbXml)
If success <> True Then
    Log(gen.LastErrorText)
    Return
End If

'  -----------------------------------------------

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

Log(sbXml.GetAsString)

'  ----------------------------------------
'  Verify the signatures we just produced...
Dim verifier As ChilkatXmlDSig
verifier.Initialize
success = verifier.LoadSignatureSb(sbXml)
If success <> True Then
    Log(verifier.LastErrorText)
    Return
End If


Dim numSigs As Int = verifier.NumSignatures
Dim verifyIdx As Int = 0
Do While verifyIdx < numSigs
    verifier.Selector = verifyIdx
    Dim verified As Boolean = verifier.VerifySignature(True)
    If verified <> True Then
        Log(verifier.LastErrorText)
        Return
    End If

    verifyIdx = verifyIdx + 1
Loop
Log("All signatures were successfully verified.")