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(DataFlex) Apply 2nd Signature to sii.cl Factura Electrónica (Chile Servicio de Impuestos Internos)Demonstrates how to apply the 2nd signature an XML invoice according to Chilean Internal Revenue Service regulations.
Use ChilkatAx-win32.pkg Procedure Test Handle hoGen Boolean iSuccess Variant vCert Handle hoCert Boolean iSuccess Handle hoXml Variant vSbXml Handle hoSbXml Handle hoSbExisting Integer iNumReplaced String sTemp1 // This example assumes the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. // In this example: Create sii.cl Factura Electr�nica (Chile Servicio de Impuestos Internos) // We signed XML structured like this: // <?xml version="1.0" encoding="iso-8859-1"?> // <DTE version="1.0" xmlns="http://www.sii.cl/SiiDte"> // <Documento ID="F11T22"> // ... // </Documento> // </DTE> // To get a signature like this: // <?xml version="1.0" encoding="iso-8859-1"?> // <DTE version="1.0" xmlns="http://www.sii.cl/SiiDte"> // <Documento ID="F11T22"> // ... // </Documento> // <Signature xmlns="http://www.w3.org/2000/09/xmldsig#"> // .. // </Signature> // </DTE> // Now we wish to wrap the result of the 1st example in the following and sign again: // <?xml version="1.0" encoding="iso-8859-1"?> // <EnvioDTE version="1.0" xmlns="http://www.sii.cl/SiiDte" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.sii.cl/SiiDte EnvioDTE_v10.xsd"> // <SetDTE ID="NDTECHILE"> // <Caratula version="1.0"> // <RutEmisor>...</RutEmisor> // <RutEnvia>...</RutEnvia> // <RutReceptor>...</RutReceptor> // <FchResol>2014-08-22</FchResol> // <NroResol>80</NroResol> // <TmstFirmaEnv>2020-07-17T13:19:10</TmstFirmaEnv> // <SubTotDTE> // <TpoDTE>34</TpoDTE> // <NroDTE>1</NroDTE> // </SubTotDTE> // </Caratula> // <DTE version="1.0" xmlns="http://www.sii.cl/SiiDte"> // <Documento ID="F11T22">...</Documento> // <Signature xmlns="http://www.w3.org/2000/09/xmldsig#">..</Signature> // </DTE> // </SetDTE> // </EnvioDTE> // The result will be this: // <?xml version="1.0" encoding="iso-8859-1"?> // <EnvioDTE version="1.0" xmlns="http://www.sii.cl/SiiDte" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.sii.cl/SiiDte EnvioDTE_v10.xsd"> // <SetDTE ID="NDTECHILE"> // <Caratula version="1.0"> // <RutEmisor>...</RutEmisor> // <RutEnvia>...</RutEnvia> // <RutReceptor>...</RutReceptor> // <FchResol>2014-08-22</FchResol> // <NroResol>80</NroResol> // <TmstFirmaEnv>2020-07-17T13:19:10</TmstFirmaEnv> // <SubTotDTE> // <TpoDTE>34</TpoDTE> // <NroDTE>1</NroDTE> // </SubTotDTE> // </Caratula> // <DTE version="1.0" xmlns="http://www.sii.cl/SiiDte"> // <Documento ID="F11T22">...</Documento> // <Signature xmlns="http://www.w3.org/2000/09/xmldsig#">..</Signature> // </DTE> // </SetDTE> // <Signature xmlns="http://www.w3.org/2000/09/xmldsig#">..</Signature> // </EnvioDTE> Get Create (RefClass(cComChilkatXmlDSigGen)) To hoGen If (Not(IsComObjectCreated(hoGen))) Begin Send CreateComObject of hoGen End Set ComSigLocation Of hoGen To "EnvioDTE" Set ComSigLocationMod Of hoGen To 0 Set ComSigNamespacePrefix Of hoGen To "" Set ComSigNamespaceUri Of hoGen To "http://www.w3.org/2000/09/xmldsig#" Set ComSignedInfoCanonAlg Of hoGen To "C14N" Set ComSignedInfoDigestMethod Of hoGen To "sha1" // -------- Reference 1 -------- Get ComAddSameDocRef Of hoGen "NDTECHILE" "sha1" "" "" "" To iSuccess // Provide a certificate + private key. (PFX password is test123) Get Create (RefClass(cComChilkatCert)) To hoCert If (Not(IsComObjectCreated(hoCert))) Begin Send CreateComObject of hoCert End Get ComLoadPfxFile Of hoCert "qa_data/pfx/cert_test123.pfx" "test123" To iSuccess If (iSuccess <> True) Begin Get ComLastErrorText Of hoCert To sTemp1 Showln sTemp1 Procedure_Return End Get pvComObject of hoCert to vCert Get ComSetX509Cert Of hoGen vCert True To iSuccess Set ComKeyInfoType Of hoGen To "X509Data+KeyValue" Set ComX509Type Of hoGen To "Certificate" // Here's the part where we must be very careful not to disturb the existing signature. // We want to encapsulate the existing signed XML like this: // <?xml version="1.0" encoding="iso-8859-1"?> // <EnvioDTE version="1.0" xmlns="http://www.sii.cl/SiiDte" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.sii.cl/SiiDte EnvioDTE_v10.xsd"> // <SetDTE ID="NDTECHILE"> // <Caratula version="1.0"> // <RutEmisor>...</RutEmisor> // <RutEnvia>...</RutEnvia> // <RutReceptor>...</RutReceptor> // <FchResol>2014-08-22</FchResol> // <NroResol>80</NroResol> // <TmstFirmaEnv>2020-07-17T13:19:10</TmstFirmaEnv> // <SubTotDTE> // <TpoDTE>34</TpoDTE> // <NroDTE>1</NroDTE> // </SubTotDTE> // </Caratula> // <EXISTING_SIGNED_XML>HERE</EXISTING_SIGNED_XML> // </SetDTE> // <Signature xmlns="http://www.w3.org/2000/09/xmldsig#">..</Signature> // </EnvioDTE> Get Create (RefClass(cComChilkatXml)) To hoXml If (Not(IsComObjectCreated(hoXml))) Begin Send CreateComObject of hoXml End Set ComTag Of hoXml To "EnvioDTE" Get ComAddAttribute Of hoXml "version" "1.0" To iSuccess Get ComAddAttribute Of hoXml "xmlns" "http://www.sii.cl/SiiDte" To iSuccess Get ComAddAttribute Of hoXml "xmlns:xsi" "http://www.w3.org/2001/XMLSchema-instance" To iSuccess Get ComAddAttribute Of hoXml "xsi:schemaLocation" "http://www.sii.cl/SiiDte EnvioDTE_v10.xsd" To iSuccess Get ComUpdateAttrAt Of hoXml "SetDTE" True "ID" "NDTECHILE" To iSuccess Get ComUpdateAttrAt Of hoXml "SetDTE|Caratula" True "version" "1.0" To iSuccess Send ComUpdateChildContent To hoXml "SetDTE|Caratula|RutEmisor" "..." Send ComUpdateChildContent To hoXml "SetDTE|Caratula|RutEnvia" "..." Send ComUpdateChildContent To hoXml "SetDTE|Caratula|RutReceptor" "..." Send ComUpdateChildContent To hoXml "SetDTE|Caratula|FchResol" "2014-08-22" Send ComUpdateChildContent To hoXml "SetDTE|Caratula|NroResol" "80" Send ComUpdateChildContent To hoXml "SetDTE|Caratula|TmstFirmaEnv" "2020-07-17T13:19:10" Send ComUpdateChildContent To hoXml "SetDTE|Caratula|SubTotDTE|TpoDTE" "34" Send ComUpdateChildContent To hoXml "SetDTE|Caratula|SubTotDTE|NroDTE" "1" Send ComUpdateChildContent To hoXml "SetDTE|EXISTING_SIGNED_XML" "HERE" Get Create (RefClass(cComChilkatStringBuilder)) To hoSbXml If (Not(IsComObjectCreated(hoSbXml))) Begin Send CreateComObject of hoSbXml End Get pvComObject of hoSbXml to vSbXml Get ComGetXmlSb Of hoXml vSbXml To iSuccess // Load our existing signed XML. // We cannot load it into a Chilkat XML object because we cannot allow anything to change, // not even indentation or whitespace. Get Create (RefClass(cComChilkatStringBuilder)) To hoSbExisting If (Not(IsComObjectCreated(hoSbExisting))) Begin Send CreateComObject of hoSbExisting End Get ComLoadFile Of hoSbExisting "qa_data/xml_dsig/sii_cl/signed1.xml" "iso-8859-1" To iSuccess // However, we must remove the XML declarator, and we can trim the whitespace at the very front and back (i.e. whitespace completely outside the document). Get ComReplace Of hoSbExisting '<?xml version="1.0" encoding="iso-8859-1"?>' "" To iNumReplaced Get ComTrim Of hoSbExisting To iSuccess // Insert the existing signed XML into the new XML document to be signed. Get ComGetAsString Of hoSbExisting To sTemp1 Get ComReplace Of hoSbXml "<EXISTING_SIGNED_XML>HERE</EXISTING_SIGNED_XML>" sTemp1 To iNumReplaced // We now have the XML document ready for the 2nd signature to be applied... // Make sure we add the "SignExistingSignatures" behavior so that this signature includes the original signature in the digest. Set ComBehaviors Of hoGen To "IndentedSignature,SignExistingSignatures" // Sign the XML... Get pvComObject of hoSbXml to vSbXml Get ComCreateXmlDSigSb Of hoGen vSbXml To iSuccess If (iSuccess <> True) Begin Get ComLastErrorText Of hoGen To sTemp1 Showln sTemp1 Procedure_Return End // ----------------------------------------------- // Change the XML declarator to indicate iso-8859-1 (because we'll be saving using iso-8859-1) Get ComReplace Of hoSbXml 'encoding="utf-8"?>' 'encoding="iso-8859-1"?>' To iNumReplaced // Save the signed XML to a file. Get ComWriteFile Of hoSbXml "qa_data/xml_dsig/sii_cl/signed2.xml" "iso-8859-1" False To iSuccess Get ComGetAsString Of hoSbXml To sTemp1 Showln sTemp1 End_Procedure |
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