(Tcl) 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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load ./chilkat.dll

# 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>

set success 1

set gen [new_CkXmlDSigGen]

CkXmlDSigGen_put_SigLocation $gen "DTE"
CkXmlDSigGen_put_SigLocationMod $gen 0
CkXmlDSigGen_put_SigNamespacePrefix $gen ""
CkXmlDSigGen_put_SigNamespaceUri $gen "http://www.w3.org/2000/09/xmldsig#"
CkXmlDSigGen_put_SignedInfoCanonAlg $gen "C14N"
CkXmlDSigGen_put_SignedInfoDigestMethod $gen "sha1"

# -------- Reference 1 --------
CkXmlDSigGen_AddSameDocRef $gen "F13T34" "sha1" "" "" ""

# Provide a certificate + private key. (PFX password is test123)
set cert [new_CkCert]

set success [CkCert_LoadPfxFile $cert "qa_data/pfx/cert_test123.pfx" "test123"]
if {$success != 1} then {
    puts [CkCert_lastErrorText $cert]
    delete_CkXmlDSigGen $gen
    delete_CkCert $cert
    exit
}

CkXmlDSigGen_SetX509Cert $gen $cert 1

CkXmlDSigGen_put_KeyInfoType $gen "X509Data+KeyValue"
CkXmlDSigGen_put_X509Type $gen "Certificate"

# Load XML to be signed...
set sbXml [new_CkStringBuilder]

set success [CkStringBuilder_LoadFile $sbXml "qa_data/xml_dsig/sii_cl/xmlToSign.xml" "iso-8859-1"]
if {$success == 0} then {
    puts "Failed to load XML file."
    delete_CkXmlDSigGen $gen
    delete_CkCert $cert
    delete_CkStringBuilder $sbXml
    exit
}

CkXmlDSigGen_put_Behaviors $gen "IndentedSignature"

# Sign the XML...
set success [CkXmlDSigGen_CreateXmlDSigSb $gen $sbXml]
if {$success != 1} then {
    puts [CkXmlDSigGen_lastErrorText $gen]
    delete_CkXmlDSigGen $gen
    delete_CkCert $cert
    delete_CkStringBuilder $sbXml
    exit
}

# -----------------------------------------------

# Save the signed XML to a file.
set success [CkStringBuilder_WriteFile $sbXml "qa_data/xml_dsig/sii_cl/signed1.xml" "iso-8859-1" 0]

puts [CkStringBuilder_getAsString $sbXml]

# ----------------------------------------
# Verify the signatures we just produced...
set verifier [new_CkXmlDSig]

set success [CkXmlDSig_LoadSignatureSb $verifier $sbXml]
if {$success != 1} then {
    puts [CkXmlDSig_lastErrorText $verifier]
    delete_CkXmlDSigGen $gen
    delete_CkCert $cert
    delete_CkStringBuilder $sbXml
    delete_CkXmlDSig $verifier
    exit
}

set numSigs [CkXmlDSig_get_NumSignatures $verifier]
set verifyIdx 0
while {$verifyIdx < $numSigs} {
    CkXmlDSig_put_Selector $verifier $verifyIdx
    set verified [CkXmlDSig_VerifySignature $verifier 1]
    if {$verified != 1} then {
        puts [CkXmlDSig_lastErrorText $verifier]
        delete_CkXmlDSigGen $gen
        delete_CkCert $cert
        delete_CkStringBuilder $sbXml
        delete_CkXmlDSig $verifier
        exit
    }

    set verifyIdx [expr $verifyIdx + 1]
}
puts "All signatures were successfully verified."

delete_CkXmlDSigGen $gen
delete_CkCert $cert
delete_CkStringBuilder $sbXml
delete_CkXmlDSig $verifier