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(C) 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.
#include <C_CkXmlDSigGen.h> #include <C_CkCert.h> #include <C_CkXml.h> #include <C_CkStringBuilder.h> void ChilkatSample(void) { HCkXmlDSigGen gen; HCkCert cert; BOOL success; HCkXml xml; HCkStringBuilder sbXml; HCkStringBuilder sbExisting; int numReplaced; // 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> gen = CkXmlDSigGen_Create(); CkXmlDSigGen_putSigLocation(gen,"EnvioDTE"); CkXmlDSigGen_putSigLocationMod(gen,0); CkXmlDSigGen_putSigNamespacePrefix(gen,""); CkXmlDSigGen_putSigNamespaceUri(gen,"http://www.w3.org/2000/09/xmldsig#"); CkXmlDSigGen_putSignedInfoCanonAlg(gen,"C14N"); CkXmlDSigGen_putSignedInfoDigestMethod(gen,"sha1"); // -------- Reference 1 -------- CkXmlDSigGen_AddSameDocRef(gen,"NDTECHILE","sha1","","",""); // Provide a certificate + private key. (PFX password is test123) cert = CkCert_Create(); success = CkCert_LoadPfxFile(cert,"qa_data/pfx/cert_test123.pfx","test123"); if (success != TRUE) { printf("%s\n",CkCert_lastErrorText(cert)); CkXmlDSigGen_Dispose(gen); CkCert_Dispose(cert); return; } CkXmlDSigGen_SetX509Cert(gen,cert,TRUE); CkXmlDSigGen_putKeyInfoType(gen,"X509Data+KeyValue"); CkXmlDSigGen_putX509Type(gen,"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> xml = CkXml_Create(); CkXml_putTag(xml,"EnvioDTE"); CkXml_AddAttribute(xml,"version","1.0"); CkXml_AddAttribute(xml,"xmlns","http://www.sii.cl/SiiDte"); CkXml_AddAttribute(xml,"xmlns:xsi","http://www.w3.org/2001/XMLSchema-instance"); CkXml_AddAttribute(xml,"xsi:schemaLocation","http://www.sii.cl/SiiDte EnvioDTE_v10.xsd"); CkXml_UpdateAttrAt(xml,"SetDTE",TRUE,"ID","NDTECHILE"); CkXml_UpdateAttrAt(xml,"SetDTE|Caratula",TRUE,"version","1.0"); CkXml_UpdateChildContent(xml,"SetDTE|Caratula|RutEmisor","..."); CkXml_UpdateChildContent(xml,"SetDTE|Caratula|RutEnvia","..."); CkXml_UpdateChildContent(xml,"SetDTE|Caratula|RutReceptor","..."); CkXml_UpdateChildContent(xml,"SetDTE|Caratula|FchResol","2014-08-22"); CkXml_UpdateChildContent(xml,"SetDTE|Caratula|NroResol","80"); CkXml_UpdateChildContent(xml,"SetDTE|Caratula|TmstFirmaEnv","2020-07-17T13:19:10"); CkXml_UpdateChildContent(xml,"SetDTE|Caratula|SubTotDTE|TpoDTE","34"); CkXml_UpdateChildContent(xml,"SetDTE|Caratula|SubTotDTE|NroDTE","1"); CkXml_UpdateChildContent(xml,"SetDTE|EXISTING_SIGNED_XML","HERE"); sbXml = CkStringBuilder_Create(); CkXml_GetXmlSb(xml,sbXml); // 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. sbExisting = CkStringBuilder_Create(); CkStringBuilder_LoadFile(sbExisting,"qa_data/xml_dsig/sii_cl/signed1.xml","iso-8859-1"); // 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). numReplaced = CkStringBuilder_Replace(sbExisting,"<?xml version=\"1.0\" encoding=\"iso-8859-1\"?>",""); CkStringBuilder_Trim(sbExisting); // Insert the existing signed XML into the new XML document to be signed. numReplaced = CkStringBuilder_Replace(sbXml,"<EXISTING_SIGNED_XML>HERE</EXISTING_SIGNED_XML>",CkStringBuilder_getAsString(sbExisting)); // 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. CkXmlDSigGen_putBehaviors(gen,"IndentedSignature,SignExistingSignatures"); // Sign the XML... success = CkXmlDSigGen_CreateXmlDSigSb(gen,sbXml); if (success != TRUE) { printf("%s\n",CkXmlDSigGen_lastErrorText(gen)); CkXmlDSigGen_Dispose(gen); CkCert_Dispose(cert); CkXml_Dispose(xml); CkStringBuilder_Dispose(sbXml); CkStringBuilder_Dispose(sbExisting); return; } // ----------------------------------------------- // Change the XML declarator to indicate iso-8859-1 (because we'll be saving using iso-8859-1) numReplaced = CkStringBuilder_Replace(sbXml,"encoding=\"utf-8\"?>","encoding=\"iso-8859-1\"?>"); // Save the signed XML to a file. success = CkStringBuilder_WriteFile(sbXml,"qa_data/xml_dsig/sii_cl/signed2.xml","iso-8859-1",FALSE); printf("%s\n",CkStringBuilder_getAsString(sbXml)); CkXmlDSigGen_Dispose(gen); CkCert_Dispose(cert); CkXml_Dispose(xml); CkStringBuilder_Dispose(sbXml); CkStringBuilder_Dispose(sbExisting); } |
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