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(Android™) 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.
// Important: Don't forget to include the call to System.loadLibrary // as shown at the bottom of this code sample. package com.test; import android.app.Activity; import com.chilkatsoft.*; import android.widget.TextView; import android.os.Bundle; public class SimpleActivity extends Activity { private static final String TAG = "Chilkat"; // Called when the activity is first created. @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); // 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> CkXmlDSigGen gen = new CkXmlDSigGen(); gen.put_SigLocation("EnvioDTE"); gen.put_SigLocationMod(0); gen.put_SigNamespacePrefix(""); gen.put_SigNamespaceUri("http://www.w3.org/2000/09/xmldsig#"); gen.put_SignedInfoCanonAlg("C14N"); gen.put_SignedInfoDigestMethod("sha1"); // -------- Reference 1 -------- gen.AddSameDocRef("NDTECHILE","sha1","","",""); // Provide a certificate + private key. (PFX password is test123) CkCert cert = new CkCert(); boolean success = cert.LoadPfxFile("qa_data/pfx/cert_test123.pfx","test123"); if (success != true) { Log.i(TAG, cert.lastErrorText()); return; } gen.SetX509Cert(cert,true); gen.put_KeyInfoType("X509Data+KeyValue"); gen.put_X509Type("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> CkXml xml = new CkXml(); xml.put_Tag("EnvioDTE"); xml.AddAttribute("version","1.0"); xml.AddAttribute("xmlns","http://www.sii.cl/SiiDte"); xml.AddAttribute("xmlns:xsi","http://www.w3.org/2001/XMLSchema-instance"); xml.AddAttribute("xsi:schemaLocation","http://www.sii.cl/SiiDte EnvioDTE_v10.xsd"); xml.UpdateAttrAt("SetDTE",true,"ID","NDTECHILE"); xml.UpdateAttrAt("SetDTE|Caratula",true,"version","1.0"); xml.UpdateChildContent("SetDTE|Caratula|RutEmisor","..."); xml.UpdateChildContent("SetDTE|Caratula|RutEnvia","..."); xml.UpdateChildContent("SetDTE|Caratula|RutReceptor","..."); xml.UpdateChildContent("SetDTE|Caratula|FchResol","2014-08-22"); xml.UpdateChildContent("SetDTE|Caratula|NroResol","80"); xml.UpdateChildContent("SetDTE|Caratula|TmstFirmaEnv","2020-07-17T13:19:10"); xml.UpdateChildContent("SetDTE|Caratula|SubTotDTE|TpoDTE","34"); xml.UpdateChildContent("SetDTE|Caratula|SubTotDTE|NroDTE","1"); xml.UpdateChildContent("SetDTE|EXISTING_SIGNED_XML","HERE"); CkStringBuilder sbXml = new CkStringBuilder(); xml.GetXmlSb(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. CkStringBuilder sbExisting = new CkStringBuilder(); sbExisting.LoadFile("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). int numReplaced = sbExisting.Replace("<?xml version=\"1.0\" encoding=\"iso-8859-1\"?>",""); sbExisting.Trim(); // Insert the existing signed XML into the new XML document to be signed. numReplaced = sbXml.Replace("<EXISTING_SIGNED_XML>HERE</EXISTING_SIGNED_XML>",sbExisting.getAsString()); // 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. gen.put_Behaviors("IndentedSignature,SignExistingSignatures"); // Sign the XML... success = gen.CreateXmlDSigSb(sbXml); if (success != true) { Log.i(TAG, gen.lastErrorText()); return; } // ----------------------------------------------- // Change the XML declarator to indicate iso-8859-1 (because we'll be saving using iso-8859-1) numReplaced = sbXml.Replace("encoding=\"utf-8\"?>","encoding=\"iso-8859-1\"?>"); // Save the signed XML to a file. success = sbXml.WriteFile("qa_data/xml_dsig/sii_cl/signed2.xml","iso-8859-1",false); Log.i(TAG, sbXml.getAsString()); } static { System.loadLibrary("chilkat"); // Note: If the incorrect library name is passed to System.loadLibrary, // then you will see the following error message at application startup: //"The application <your-application-name> has stopped unexpectedly. Please try again." } } |
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