Chilkat2-Python

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. Chilkat2-Python

import sys
import chilkat2

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 = chilkat2.XmlDSigGen()

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 = chilkat2.Cert()
success = cert.LoadPfxFile("qa_data/pfx/cert_test123.pfx","test123")
if (success != True):
    print(cert.LastErrorText)
    sys.exit()

gen.SetX509Cert(cert,True)

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

# Load XML to be signed...
sbXml = chilkat2.StringBuilder()
success = sbXml.LoadFile("qa_data/xml_dsig/sii_cl/xmlToSign.xml","iso-8859-1")
if (success == False):
    print("Failed to load XML file.")
    sys.exit()

gen.Behaviors = "IndentedSignature"

# Sign the XML...
success = gen.CreateXmlDSigSb(sbXml)
if (success != True):
    print(gen.LastErrorText)
    sys.exit()

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

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

print(sbXml.GetAsString())

# ----------------------------------------
# Verify the signatures we just produced...
verifier = chilkat2.XmlDSig()
success = verifier.LoadSignatureSb(sbXml)
if (success != True):
    print(verifier.LastErrorText)
    sys.exit()

numSigs = verifier.NumSignatures
verifyIdx = 0
while verifyIdx < numSigs :
    verifier.Selector = verifyIdx
    verified = verifier.VerifySignature(True)
    if (verified != True):
        print(verifier.LastErrorText)
        sys.exit()

    verifyIdx = verifyIdx + 1

print("All signatures were successfully verified.")