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Lua

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 Lua Downloads

Lua
local chilkat = require("chilkat")

-- 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>

local success = true

local gen = chilkat.XmlDSigGen.new()

gen.sig_location = "DTE"
gen.sig_location_mod = 0
gen.sig_namespace_prefix = ""
gen.sig_namespace_uri = "http://www.w3.org/2000/09/xmldsig#"
gen.signed_info_canon_alg = "C14N"
gen.signed_info_digest_method = "sha1"

-- -------- Reference 1 --------
gen:add_same_doc_ref("F13T34", "sha1", "", "", "")

-- Provide a certificate + private key. (PFX password is test123)
local cert = chilkat.Cert.new()
success = cert:load_pfx_file("qa_data/pfx/cert_test123.pfx", "test123")
if not success then
    print(cert.last_error_text)
    return
end

gen:set_x509_cert(cert, true)

gen.key_info_type = "X509Data+KeyValue"
gen.x509_type = "Certificate"

-- Load XML to be signed...
local sbXml = chilkat.StringBuilder.new()
success = sbXml:load_file("qa_data/xml_dsig/sii_cl/xmlToSign.xml", "iso-8859-1")
if not success then
    print("Failed to load XML file.")
    return
end

gen.behaviors = "IndentedSignature"

-- Sign the XML...
success = gen:create_xml_dsig_sb(sbXml)
if not success then
    print(gen.last_error_text)
    return
end

-- -----------------------------------------------

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

print(sbXml:get_as_string())

-- ----------------------------------------
-- Verify the signatures we just produced...
local verifier = chilkat.XmlDSig.new()
success = verifier:load_signature_sb(sbXml)
if not success then
    print(verifier.last_error_text)
    return
end

local numSigs = verifier.num_signatures
local verifyIdx = 0
while verifyIdx < numSigs do
    verifier.selector = verifyIdx
    local verified = verifier:verify_signature(true)
    if not verified then
        print(verifier.last_error_text)
        return
    end

    verifyIdx = verifyIdx + 1
end

print("All signatures were successfully verified.")