Commit inicial: fuentes MBS ERP (Genero 6) + .gitignore + docs/SETUP_PC_MBS.md

2026-08-18 20:59:52 -04:00
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+import java.io.InputStream;
+import java.io.Serializable;
+import java.security.KeyStore;
+import java.security.cert.X509Certificate;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import javax.xml.crypto.dsig.dom.DOMSignContext;
+import javax.xml.crypto.dsig.keyinfo.KeyInfo;
+import javax.xml.crypto.dsig.keyinfo.KeyInfoFactory;
+import javax.xml.crypto.dsig.keyinfo.X509Data;
+import javax.xml.crypto.dsig.spec.C14NMethodParameterSpec;
+import javax.xml.crypto.dsig.spec.TransformParameterSpec;
+import org.w3c.dom.Element;
+
+//Ref:
+//https://repo1.maven.org/maven2/com/oracle/database/xml/xmlparserv2/21.8.0.0/xmlparserv2-21.8.0.0.jar
+
+import oracle.xml.parser.v2.DOMParser;
+import oracle.xml.parser.v2.XMLDocument;
+
+import javax.xml.crypto.dsig.CanonicalizationMethod;
+import javax.xml.crypto.dsig.DigestMethod;
+import javax.xml.crypto.dsig.Reference;
+import javax.xml.crypto.dsig.SignedInfo;
+import javax.xml.crypto.dsig.Transform;
+import javax.xml.crypto.dsig.XMLSignature;
+import javax.xml.crypto.dsig.XMLSignatureFactory;
+
+public class SignManager{
+ private static final String algoritmoSignatureMethod =
+"http://www.w3.org/2001/04/xmldsig-more#rsa-sha256";
+ /*
+ * Método para el firmado un XML utilizando un certificado digital (.p12)
+ * @param streamXML InputStream del xml que será firmado.
+ * @param pathCerticate ruta del certificado digital (archivo extension .p12)
+ * @param passwordCertificate contraseña del certificado digital
+ * @param pathFirmado Ruta donde sera almacenado el XML firmado
+ * @throws Exception
+ */
+ public Element SignXML(InputStream streamXML, InputStream streamCerticate,String
+passwordCertificate) throws Exception
+ {
+
+ try {
+ // Creamos un DOM XMLSignatureFactory. Se usará para generar la firma
+ XMLSignatureFactory fac = XMLSignatureFactory.getInstance("DOM");
+ Reference ref = fac.newReference("", fac.newDigestMethod(DigestMethod.SHA256, null),
+ Collections.singletonList(fac.newTransform(Transform.ENVELOPED,
+(TransformParameterSpec) null)),
+ null,
+ null);
+ // Creamos el objeto SignedInfo
+ SignedInfo si =
+fac.newSignedInfo(fac.newCanonicalizationMethod(CanonicalizationMethod.INCLUSIVE,
+ (C14NMethodParameterSpec) null),
+ fac.newSignatureMethod(algoritmoSignatureMethod, null),
+ Collections.singletonList(ref));
+ // Cargamos el archivo p12 desde disco
+ KeyStore ks = KeyStore.getInstance("PKCS12");
+ ks.load(streamCerticate, passwordCertificate.toCharArray());
+ String param = ks.aliases().nextElement();
+ // Extraemos los datos del archivo p12
+ KeyStore.PrivateKeyEntry keyEntry = (KeyStore.PrivateKeyEntry) ks
+ .getEntry(param, new
+KeyStore.PasswordProtection(passwordCertificate.toCharArray()));
+ X509Certificate cert = (X509Certificate) keyEntry.getCertificate();
+ KeyInfoFactory kinfoFactory = fac.getKeyInfoFactory();
+ // Cargamos nuestro certificado
+ List<Serializable> x509Content = new ArrayList<Serializable>();
+ x509Content.add(cert);
+ // Objetos para extraer la llave privada
+ X509Data x509d = kinfoFactory.newX509Data(x509Content);
+ KeyInfo kinfo = kinfoFactory.newKeyInfo(Collections.singletonList(x509d));
+ DOMParser parser = new DOMParser();
+ parser.setPreserveWhitespace(false);
+ parser.parse(streamXML);
+ XMLDocument xml =parser.getDocument();
+ Element xmlRoot = xml.getDocumentElement();
+ // Crea el contexto de firmma y especifica las llaves privadas
+ DOMSignContext dsc = new DOMSignContext(keyEntry.getPrivateKey(), xmlRoot);
+
+ // crea los nodos de firmas xml
+ XMLSignature signature = fac.newXMLSignature(si, kinfo);
+ // en esta etapa dsc modifica el objeto xmlRoot insertándole la firma
+ signature.sign(dsc);
+ return xmlRoot;
+ } catch (Exception e) {
+ throw e;
+ }
+ }
+}