diff options
Diffstat (limited to 'mocca-1.2.11/bkucommon/src/main/java/at/gv/egiz/bku/slcommands/impl/xsect/Signature.java')
| -rw-r--r-- | mocca-1.2.11/bkucommon/src/main/java/at/gv/egiz/bku/slcommands/impl/xsect/Signature.java | 995 |
1 files changed, 0 insertions, 995 deletions
diff --git a/mocca-1.2.11/bkucommon/src/main/java/at/gv/egiz/bku/slcommands/impl/xsect/Signature.java b/mocca-1.2.11/bkucommon/src/main/java/at/gv/egiz/bku/slcommands/impl/xsect/Signature.java deleted file mode 100644 index 3cebb6a3..00000000 --- a/mocca-1.2.11/bkucommon/src/main/java/at/gv/egiz/bku/slcommands/impl/xsect/Signature.java +++ /dev/null @@ -1,995 +0,0 @@ -/* -* Copyright 2008 Federal Chancellery Austria and -* Graz University of Technology -* -* Licensed under the Apache License, Version 2.0 (the "License"); -* you may not use this file except in compliance with the License. -* You may obtain a copy of the License at -* -* http://www.apache.org/licenses/LICENSE-2.0 -* -* Unless required by applicable law or agreed to in writing, software -* distributed under the License is distributed on an "AS IS" BASIS, -* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -* See the License for the specific language governing permissions and -* limitations under the License. -*/ -package at.gv.egiz.bku.slcommands.impl.xsect; - -import java.io.ByteArrayInputStream; -import java.io.ByteArrayOutputStream; -import java.io.IOException; -import java.io.InputStream; -import java.io.InputStreamReader; -import java.io.StringWriter; -import java.io.UnsupportedEncodingException; -import java.security.InvalidAlgorithmParameterException; -import java.security.NoSuchAlgorithmException; -import java.security.PrivateKey; -import java.security.cert.X509Certificate; -import java.util.ArrayList; -import java.util.Collections; -import java.util.Date; -import java.util.List; - -import javax.xml.bind.JAXBElement; -import javax.xml.bind.JAXBException; -import javax.xml.crypto.MarshalException; -import javax.xml.crypto.dom.DOMStructure; -import javax.xml.crypto.dsig.CanonicalizationMethod; -import javax.xml.crypto.dsig.DigestMethod; -import javax.xml.crypto.dsig.Reference; -import javax.xml.crypto.dsig.SignatureMethod; -import javax.xml.crypto.dsig.SignedInfo; -import javax.xml.crypto.dsig.XMLObject; -import javax.xml.crypto.dsig.XMLSignature; -import javax.xml.crypto.dsig.XMLSignatureException; -import javax.xml.crypto.dsig.XMLSignatureFactory; -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.stream.XMLStreamException; - -import org.apache.commons.logging.Log; -import org.apache.commons.logging.LogFactory; -import org.etsi.uri._01903.v1_1.DataObjectFormatType; -import org.etsi.uri._01903.v1_1.QualifyingPropertiesType; -import org.w3c.dom.DOMConfiguration; -import org.w3c.dom.DOMException; -import org.w3c.dom.Document; -import org.w3c.dom.DocumentFragment; -import org.w3c.dom.Element; -import org.w3c.dom.Node; -import org.w3c.dom.NodeList; -import org.w3c.dom.ls.DOMImplementationLS; -import org.w3c.dom.ls.LSException; -import org.w3c.dom.ls.LSInput; -import org.w3c.dom.ls.LSOutput; -import org.w3c.dom.ls.LSParser; -import org.w3c.dom.ls.LSResourceResolver; -import org.w3c.dom.ls.LSSerializer; - -import at.buergerkarte.namespaces.securitylayer._1.Base64XMLLocRefReqRefContentType; -import at.buergerkarte.namespaces.securitylayer._1.Base64XMLOptRefContentType; -import at.buergerkarte.namespaces.securitylayer._1.DataObjectAssociationType; -import at.buergerkarte.namespaces.securitylayer._1.DataObjectInfoType; -import at.buergerkarte.namespaces.securitylayer._1.SignatureInfoCreationType; -import at.gv.egiz.bku.binding.HttpUtil; -import at.gv.egiz.bku.slexceptions.SLCommandException; -import at.gv.egiz.bku.slexceptions.SLRequestException; -import at.gv.egiz.bku.slexceptions.SLViewerException; -import at.gv.egiz.bku.utils.HexDump; -import at.gv.egiz.bku.utils.urldereferencer.StreamData; -import at.gv.egiz.bku.utils.urldereferencer.URLDereferencer; -import at.gv.egiz.bku.utils.urldereferencer.URLDereferencerContext; -import at.gv.egiz.dom.DOMUtils; -import at.gv.egiz.slbinding.impl.XMLContentType; -import at.gv.egiz.stal.STAL; -import at.gv.egiz.xades.QualifyingPropertiesException; -import at.gv.egiz.xades.QualifyingPropertiesFactory; - -/** - * This class represents an XML-Signature as to be created by the - * security layer command <code>CreateXMLSignatureRequest</code>. - * - * @author mcentner - */ -public class Signature { - public static final String XMLDSIG_PREFIX = "dsig"; - - /** - * Logging facility. - */ - private static Log log = LogFactory.getLog(Signature.class); - - /** - * The DOM implementation used. - */ - private DOMImplementationLS domImplLS; - - /** - * The SignatureContext for the XMLSignature. - */ - private SignatureContext ctx; - - /** - * The list of {@link DataObject}s for this signature. - */ - private List<DataObject> dataObjects = new ArrayList<DataObject>(); - - /** - * A mapping from the <code>Id</code>-attribute values of this signature's - * <code>ds:Reference</code>s to the corresponding {@link DataObject}s. - */ -// private Map<String, DataObject> dataObjectReferencIds = new HashMap<String, DataObject>(); - - /** - * The SignatureEnvironment for this signature. - */ - private SignatureLocation signatureLocation; - - /** - * The XML signature. - */ - private XMLSignature xmlSignature; - - /** - * A list of attributes of type <code>xsd:ID</code> to be registered in the {@link DOMSignContext}. - */ - private List<IdAttribute> idAttributes = new ArrayList<IdAttribute>(); - - /** - * The signer's X509 certificate. - */ - private X509Certificate signerCertificate; - - /** - * The signing time. - */ - private Date signingTime; - - /** - * Creates a new SLXMLSignature instance. - */ - public Signature(URLDereferencerContext dereferencerContext, - IdValueFactory idValueFactory, - AlgorithmMethodFactory algorithmMethodFactory) { - - domImplLS = DOMUtils.getDOMImplementationLS(); - - ctx = new SignatureContext(); - - ctx.setSignatureFactory(XMLSignatureFactory.getInstance()); - - ctx.setDereferencerContext(dereferencerContext); - ctx.setIdValueFactory(idValueFactory); - ctx.setAlgorithmMethodFactory(algorithmMethodFactory); - - } - - /** - * @return the Document containing this Signature - */ - public Document getDocument() { - return ctx.getDocument(); - } - - /** - * @return the parent Node for this Signature - */ - public Node getParent() { - return (signatureLocation != null) ? signatureLocation.getParent() : null; - } - - /** - * @return the next sibling Node for this Signature - */ - public Node getNextSibling() { - return (signatureLocation != null) ? signatureLocation.getNextSibling() : null; - } - - /** - * @return the XMLSignature - */ - public XMLSignature getXMLSignature() { - return xmlSignature; - } - - /** - * @return the list of {@link Reference}s of this Signature - */ - @SuppressWarnings("unchecked") - public List<Reference> getReferences() { - return (xmlSignature != null) ? xmlSignature.getSignedInfo().getReferences() : null; - } - - /** - * @return the list of {@link XMLObject}s of this Signature - */ - @SuppressWarnings("unchecked") - public List<XMLObject> getXMLObjects() { - return (xmlSignature != null) ? xmlSignature.getObjects() : null; - } - - /** - * Prepares the signature document with the information given by the - * <code>signatureInfo</code> provided. - * - * @param signatureInfo - * the <code>SignatureInfo</code> - * - * @throws SLCommandException - * if processing fails for any reason - * @throws IllegalStateException - * if the <code>parent</code> node has already been set - * @throws NullPointerException - * if <code>signatureInfo</code> is <code>null</code> - */ - public void setSignatureInfo(SignatureInfoCreationType signatureInfo) throws SLCommandException { - - if (signatureLocation != null) { - throw new IllegalStateException("SignatureEnvironment already set."); - } - - Base64XMLOptRefContentType signatureEnvironment = signatureInfo.getSignatureEnvironment(); - - if (signatureEnvironment == null) { - - // no SignatureEnvironment, so we use an empty document and the document as parent - ensureSignatureLocation(); - - } else { - - // parse SignatureEnvrionment and use as document - Document document = parseSignatureEnvironment(signatureEnvironment, signatureInfo.getSupplement()); - ctx.setDocument(document); - - signatureLocation = new SignatureLocation(ctx); - signatureLocation.setSignatureInfo(signatureInfo); - - } - - } - - /** - * Ensures a SignatureLocation for this Signature. - */ - private void ensureSignatureLocation() { - - if (signatureLocation == null) { - Document document = DOMUtils.createDocument(); - ctx.setDocument(document); - - signatureLocation = new SignatureLocation(ctx); - signatureLocation.setParent(document); - } - - } - - /** - * Adds a DataObject with the information given by the - * <code>dataObjectInfo</code> provided to this Signature. - * - * @param dataObjectInfo - * the <code>DataObjectInfo</code> element - * - * @throws SLCommandException - * if adding the DataObject fails - * @throws SLRequestException - * if the information provided by the given - * <code>dataObjectInfo</code> does not conform to the security - * layer specification - * @throws NullPointerException - * if <code>dataObjectInfo</code> is <code>null</code> - */ - public void addDataObject(DataObjectInfoType dataObjectInfo) throws SLCommandException, SLRequestException { - - ensureSignatureLocation(); - - DataObject dataObject = new DataObject(ctx); - dataObject.setDataObjectInfo(dataObjectInfo); - - dataObjects.add(dataObject); - -// dataObjectReferencIds.put(dataObject.getReference().getId(), dataObject); - - } - - /** - * Sets the <code>SigningTime</code> qualifying property of this Signature. - * - * @param signingTime the signing time to set - */ - public void setSigningTime(Date signingTime) { - this.signingTime = signingTime; - } - - /** - * Sets the <code>SignerCertificate</code> qualifying property of this Signature. - * - * @param certificate the signer's certificate - */ - public void setSignerCeritifcate(X509Certificate certificate) { - this.signerCertificate = certificate; - } - - /** - * Builds the XMLSignature data structure of this Signature as configured by - * the various setter methods. - * - * @throws SLCommandException if building this signature fails - */ - public void buildXMLSignature() throws SLCommandException { - - String signatureId = ctx.getIdValueFactory().createIdValue("Signature"); - - List<XMLObject> objects = new ArrayList<XMLObject>(); - List<Reference> references = new ArrayList<Reference>(); - - // add all data objects - for (DataObject dataObject : dataObjects) { - if (dataObject.getXmlObject() != null) { - objects.add(dataObject.getXmlObject()); - } - if (dataObject.getReference() != null) { - references.add(dataObject.getReference()); - } - } - - addXAdESObjectAndReference(objects, references, signatureId); - - XMLSignatureFactory signatureFactory = ctx.getSignatureFactory(); - AlgorithmMethodFactory algorithmMethodFactory = ctx.getAlgorithmMethodFactory(); - - CanonicalizationMethod cm; - SignatureMethod sm; - try { - cm = algorithmMethodFactory.createCanonicalizationMethod(ctx); - sm = algorithmMethodFactory.createSignatureMethod(ctx); - } catch (NoSuchAlgorithmException e) { - log.error("Failed to get Canonicalization or Signature algorithm.", e); - throw new SLCommandException(4006); - } catch (InvalidAlgorithmParameterException e) { - log.error("Failed to get Canonicalization or Signature algorithm.", e); - throw new SLCommandException(4006); - } - - String siId = ctx.getIdValueFactory().createIdValue("SignedInfo"); - - SignedInfo si = signatureFactory.newSignedInfo(cm, sm, references, siId); - - KeyInfo ki = null; - if (signerCertificate != null) { - KeyInfoFactory kif = KeyInfoFactory.getInstance(); - X509Data x509Data = kif.newX509Data(Collections.singletonList(signerCertificate)); - ki = kif.newKeyInfo(Collections.singletonList(x509Data)); - } - - String signatureValueId = ctx.getIdValueFactory().createIdValue("SignatureValue"); - - xmlSignature = signatureFactory.newXMLSignature(si, ki, objects, signatureId, signatureValueId); - - } - - /** - * Sign this Signature using the given <code>signContext</code>. - * <p> - * Call's {@link #buildXMLSignature()} if it has not been called yet. - * </p> - * - * @param signContext - * the signing context - * - * @throws MarshalException - * if marshalling the XMLSignature fails - * @throws XMLSignatureException - * if signing the XMLSignature fails - * @throws SLCommandException - * if building the XMLSignature fails - * @throws SLViewerException - * @throws NullPointerException - * if <code>signContext</code> is <code>null</code> - */ - public void sign(DOMSignContext signContext) throws MarshalException, XMLSignatureException, SLCommandException, SLViewerException { - - if (xmlSignature == null) { - buildXMLSignature(); - } - - for (IdAttribute idAttribute : idAttributes) { - signContext.setIdAttributeNS(idAttribute.element, idAttribute.namespaceURI, idAttribute.localName); - } - - // DO NOT USE: - // signContext.setProperty("iaik.xml.crypto.dsig.sign-over", Boolean.TRUE); - - signContext.setProperty("javax.xml.crypto.dsig.cacheReference", Boolean.TRUE); - - signContext.putNamespacePrefix(XMLSignature.XMLNS,XMLDSIG_PREFIX); - - signContext.setURIDereferencer(new URIDereferncerAdapter(ctx.getDereferencerContext())); - - try { - xmlSignature.sign(signContext); - } catch (XMLSignatureException e) { - Throwable cause = e.getCause(); - while (cause != null) { - if (cause instanceof STALSignatureException) { - if (((STALSignatureException) cause).getCause() instanceof SLViewerException) { - throw (SLViewerException) ((STALSignatureException) cause).getCause(); - } - int errorCode = ((STALSignatureException) cause).getErrorCode(); - SLCommandException commandException = new SLCommandException(errorCode); - log.info("Failed to sign signature.", commandException); - throw commandException; - } else { - cause = cause.getCause(); - } - } - throw e; - } - - // debug - if (log.isTraceEnabled()) { - for (DataObject dataObject : dataObjects) { - Reference reference = dataObject.getReference(); - InputStream digestInputStream = reference.getDigestInputStream(); - if (digestInputStream != null) { - String mimeType = dataObject.getMimeType(); - StringBuilder sb = new StringBuilder(); - sb.append("DigestInput for Reference with id='"); - sb.append(reference.getId()); - sb.append("' (MIME-Type="); - sb.append(dataObject.getMimeType()); - sb.append("):\n"); - try { - if (mimeType != null && ( - mimeType.startsWith("text") || - "application/xhtml+xml".equals(mimeType))) { - byte[] b = new byte[512]; - for (int l; (l = digestInputStream.read(b)) != -1;) { - sb.append(new String(b, 0, l)); - } - } else { - sb.append(HexDump.hexDump(digestInputStream)); - } - } catch (IOException e) { - log.error(e); - } - log.trace(sb.toString()); - } else { - log.trace("Reference caching is not enabled."); - } - } - for (Reference reference : getReferences()) { - if (reference.getType() != null) { - InputStream digestInputStream = reference.getDigestInputStream(); - if (digestInputStream != null) { - StringBuilder sb = new StringBuilder(); - sb.append("DigestInput for Reference with id='"); - sb.append(reference.getId()); - sb.append("'; Type:"); - sb.append(reference.getType()); - sb.append("):\n"); - try { - byte[] b = new byte[512]; - for (int l; (l = digestInputStream.read(b)) != -1;) { - sb.append(new String(b, 0, l)); - } - } catch (IOException e) { - log.error(e); - } - log.trace(sb.toString()); - } else { - log.trace("Reference caching is not enabled."); - } - - } - } - } - - } - - /** - * Sign this Signature using the given <code>stal</code> implementation and - * <code>keyboxIdentifier</code>. - * <p> - * This method configures an appropriate {@link DOMSignContext} and calls - * {@link #sign(DOMSignContext)}. If {@link #buildXMLSignature()} has not been - * called yet, it is called by this method. - * </p> - * - * @param stal - * the STAL implementation to use - * @param keyboxIdentifier - * the KeyboxIdentifier to use - * - * @throws MarshalException - * if marshalling this Signature fails - * @throws XMLSignatureException - * if signing this Signature fails - * @throws SLCommandException - * if building this Signature fails - * @throws SLViewerException - * @throws NullPointerException - * if <code>stal</code> or <code>keyboxIdentifier</code> is - * <code>null</code> - */ - public void sign(STAL stal, String keyboxIdentifier) throws MarshalException, XMLSignatureException, SLCommandException, SLViewerException { - - if (stal == null) { - throw new NullPointerException("Argument 'stal' must not be null."); - } - - if (keyboxIdentifier == null) { - throw new NullPointerException("Argument 'keyboxIdentifier' must not be null."); - } - - if (xmlSignature == null) { - buildXMLSignature(); - } - - SignatureMethod signatureMethod = xmlSignature.getSignedInfo().getSignatureMethod(); - String algorithm = signatureMethod.getAlgorithm(); - - //don't get hashDataInputs (digestInputStreams) now, only once Signature.sign() was called (cf STALSignature.engineSign) - PrivateKey privateKey = new STALPrivateKey(stal, algorithm, keyboxIdentifier, dataObjects); // hashDataInputs); - - DOMSignContext signContext; - if (getNextSibling() == null) { - signContext = new DOMSignContext(privateKey, getParent()); - } else { - signContext = new DOMSignContext(privateKey, getParent(), getNextSibling()); - } - - sign(signContext); - } - -// @Override -// public HashDataInput getHashDataInput(final String referenceId) { -// final DataObject dataObject = dataObjectReferencIds.get(referenceId); -// if (dataObject != null) { -// return new HashDataInput() { -// -// InputStream hashDataInput = dataObject.getReference().getDigestInputStream(); -// -// @Override -// public String getReferenceId() { -// return referenceId; -// } -// -// @Override -// public String getMimeType() { -// return dataObject.getMimeType(); -// } -// -// @Override -// public InputStream getHashDataInput() { -// return hashDataInput; -// } -// }; -// } -// return null; -// } - - /** - * Adds the XAdES <code>QualifyingProperties</code> as an - * <code>ds:Object</code> and a corresponding <code>ds:Reference</code> to - * it's <code>SignedProperties</code> element to this Signature. - * - * @param objects - * the list of <code>ds:Objects</code> to add the created - * <code>ds:Object</code> to - * @param references - * the list of <code>ds:References</code> to add the created - * <code>ds:Reference</code> to - * @param signatureId TODO - * @throws SLCommandException - * if creating and adding the XAdES - * <code>QualifyingProperties</code> fails - * @throws NullPointerException - * if <code>objects</code> or <code>references</code> is - * <code>null</code> - */ - private void addXAdESObjectAndReference(List<XMLObject> objects, List<Reference> references, String signatureId) throws SLCommandException { - - QualifyingPropertiesFactory factory = QualifyingPropertiesFactory.getInstance(); - - String idValue = ctx.getIdValueFactory().createIdValue("SignedProperties"); - - Date date = (signingTime != null) ? signingTime : new Date(); - - List<X509Certificate> signingCertificates; - if (signerCertificate != null) { - signingCertificates = Collections.singletonList(signerCertificate); - } else { - signingCertificates = Collections.emptyList(); - } - - // TODO: report MOA-SP bug - // - // The security layer specification mandates the use of version 1.2.2. of the - // XAdES QualifyingProperties. However MOA-SP supports only version 1.1.1. Therefore, - // the version 1.1.1 is used in order to be compatible with current MOA-SP versions. - - List<DataObjectFormatType> dataObjectFormats = new ArrayList<DataObjectFormatType>(); - for (DataObject dataObject : dataObjects) { - if (dataObject.getMimeType() != null && dataObject.getReference() != null) { - Reference reference = dataObject.getReference(); - if (reference.getId() != null) { - String objectReference = "#" + reference.getId(); - dataObjectFormats.add(factory.createDataObjectFormatType( - objectReference, dataObject.getMimeType(), dataObject - .getDescription())); - } - } - } - - String target = "#" + signatureId; - - DigestMethod dm; - try { - dm = ctx.getAlgorithmMethodFactory().createDigestMethod(ctx); - } catch (NoSuchAlgorithmException e) { - log.error("Failed to get DigestMethod algorithm.", e); - throw new SLCommandException(4006); - } catch (InvalidAlgorithmParameterException e) { - log.error("Failed to get DigestMethod algorithm.", e); - throw new SLCommandException(4006); - } - - JAXBElement<QualifyingPropertiesType> qualifyingProperties; - try { - qualifyingProperties = factory.createQualifyingProperties111(target, date, signingCertificates, idValue, dataObjectFormats, dm); - } catch (QualifyingPropertiesException e) { - log.error("Failed to create QualifyingProperties.", e); - throw new SLCommandException(4000); - } - - DocumentFragment fragment = ctx.getDocument().createDocumentFragment(); - - try { - factory.marshallQualifyingProperties(qualifyingProperties, fragment); - } catch (JAXBException e) { - log.error("Failed to marshal QualifyingProperties.", e); - throw new SLCommandException(4000); - } - - List<DOMStructure> content = Collections.singletonList(new DOMStructure(fragment.getFirstChild())); - - String objectIdValue = ctx.getIdValueFactory().createIdValue("Object"); - - XMLObject object = ctx.getSignatureFactory().newXMLObject(content, objectIdValue, null, null); - - objects.add(object); - - // TODO: Report MOA-SP Bug - // - // Direct referencing of the SignedPorperties Id-attribute is not supported by MOA-SP - // because the QualifyingProperties are parsed without the XAdES schema. Therefore, - // the shorthand XPointer could not be resolved. - // - // The following workaround uses an XPointer to select the SignedProperties in order - // to allow the signature to be verified with MOA-SP. - - String referenceURI = "#xmlns(xades=http://uri.etsi.org/01903/v1.1.1%23)%20xpointer(id('" - + objectIdValue - + "')/child::xades:QualifyingProperties/child::xades:SignedProperties)"; - - String referenceIdValue = ctx.getIdValueFactory().createIdValue("Reference"); - String referenceType = QualifyingPropertiesFactory.SIGNED_PROPERTIES_REFERENCE_TYPE_V1_1_1; - - try { - dm = ctx.getAlgorithmMethodFactory().createDigestMethod(ctx); - } catch (NoSuchAlgorithmException e) { - log.error("Failed to get DigestMethod algorithm.", e); - throw new SLCommandException(4006); - } catch (InvalidAlgorithmParameterException e) { - log.error("Failed to get DigestMethod algorithm.", e); - throw new SLCommandException(4006); - } - - Reference reference = ctx.getSignatureFactory().newReference(referenceURI, dm, null, referenceType, referenceIdValue); - - references.add(reference); - - Node child = fragment.getFirstChild(); - if (child instanceof Element) { - NodeList nodes = ((Element) child).getElementsByTagNameNS(QualifyingPropertiesFactory.NS_URI_V1_1_1, "SignedProperties"); - if (nodes.getLength() > 0) { - IdAttribute idAttribute = new IdAttribute(); - idAttribute.element = (Element) nodes.item(0); - idAttribute.namespaceURI = null; - idAttribute.localName = "Id"; - idAttributes.add(idAttribute); - } - } - - } - - /** - * Parse the SignatureEnvironment. - * - * @param signatureEnvironment - * the <code>SignatureEnvironment</code> element - * @param supplements - * an optional list of <code>Supplements</code> (may be - * <code>null</code>) - * - * @return the parsed SignatureEnvironment document - * - * @throws SLCommandException - * if parsing the SignatureEnvironment fails - * @throws NullPointerException - * if <code>signatureEnvironment</code> is <code>null</code> - */ - private Document parseSignatureEnvironment( - Base64XMLOptRefContentType signatureEnvironment, - List<DataObjectAssociationType> supplements) throws SLCommandException { - - if (signatureEnvironment == null) { - throw new NullPointerException("Argument 'signatureEnvironment' must not be null."); - } - - LSInput input; - try { - if (signatureEnvironment.getReference() != null) { - log.debug("SignatureEnvironment contains Reference " + signatureEnvironment.getReference() + "."); - input = createLSInput(signatureEnvironment.getReference()); - } else if (signatureEnvironment.getBase64Content() != null) { - log.debug("SignatureEnvironment contains Base64Content."); - input = createLSInput(signatureEnvironment.getBase64Content()); - } else if (signatureEnvironment.getXMLContent() != null) { - log.debug("SignatureEnvironment contains XMLContent."); - input = createLSInput((XMLContentType) signatureEnvironment.getXMLContent()); - } else { - // the schema does not allow us to reach this point - throw new SLCommandException(4000); - } - } catch (IOException e) { - log.info("XML document in which the signature is to be integrated cannot be resolved.", e); - throw new SLCommandException(4100); - } catch (XMLStreamException e) { - log.info("XML document in which the signature is to be integrated cannot be resolved.", e); - throw new SLCommandException(4100); - } - - LSParser parser = domImplLS.createLSParser(DOMImplementationLS.MODE_SYNCHRONOUS, null); - DOMConfiguration domConfig = parser.getDomConfig(); - SimpleDOMErrorHandler errorHandler = new SimpleDOMErrorHandler(); - domConfig.setParameter("error-handler", errorHandler); - LSResourceResolverAdapter resourceResolver = new LSResourceResolverAdapter(supplements); - domConfig.setParameter("resource-resolver", resourceResolver); - domConfig.setParameter("validate", Boolean.TRUE); - - Document doc; - try { - doc = parser.parse(input); - } catch (DOMException e) { - log.info("XML document in which the signature is to be integrated cannot be parsed.", e); - throw new SLCommandException(4101); - } catch (LSException e) { - log.info("XML document in which the signature is to be integrated cannot be parsed.", e); - throw new SLCommandException(4101); - } - - if (resourceResolver.getError() != null) { - log.info("Failed to resolve resource while parsing SignatureEnvironment document.", resourceResolver.getError()); - // we don't stop here, as we only _try_ to parse validating - } - - if (errorHandler.hasFatalErrors()) { - // log fatal errors - if (log.isInfoEnabled()) { - List<String> errorMessages = errorHandler.getErrorMessages(); - StringBuffer sb = new StringBuffer(); - for (String errorMessage : errorMessages) { - sb.append(" "); - sb.append(errorMessage); - } - log.info("XML document in which the signature is to be integrated cannot be parsed." + sb.toString()); - } - throw new SLCommandException(4101); - } - - // log parsed document - if (log.isTraceEnabled()) { - - StringWriter writer = new StringWriter(); - - writer.write("SignatureEnvironment:\n"); - - LSOutput output = domImplLS.createLSOutput(); - output.setCharacterStream(writer); - output.setEncoding("UTF-8"); - LSSerializer serializer = domImplLS.createLSSerializer(); - serializer.write(doc, output); - - log.trace(writer.toString()); - } - - return doc; - - } - - /** - * Creates an LSInput from the given <code>reference</code> URI. - * - * @param reference - * the reference URL - * - * @return an LSInput from the given <code>reference</code> URI - * - * @throws IOException - * if dereferencing the given <code>reference</code> fails - */ - private LSInput createLSInput(String reference) throws IOException { - - URLDereferencer urlDereferencer = URLDereferencer.getInstance(); - StreamData streamData = urlDereferencer.dereference(reference, ctx.getDereferencerContext()); - - String contentType = streamData.getContentType(); - String charset = HttpUtil.getCharset(contentType, true); - InputStreamReader streamReader; - try { - streamReader = new InputStreamReader(streamData.getStream(), charset); - } catch (UnsupportedEncodingException e) { - log.info("Charset " + charset + " not supported. Using default."); - streamReader = new InputStreamReader(streamData.getStream()); - } - - LSInput input = domImplLS.createLSInput(); - input = domImplLS.createLSInput(); - input.setCharacterStream(streamReader); - - return input; - - } - - /** - * Creates an LSInput from the given <code>content</code> bytes. - * - * @param content - * the content bytes - * - * @return an LSInput from the givne <code>content</code> bytes - */ - private LSInput createLSInput(byte[] content) { - - ByteArrayInputStream inputStream = new ByteArrayInputStream(content); - LSInput input = domImplLS.createLSInput(); - input.setByteStream(inputStream); - - return input; - - } - - /** - * Creates an LSInput from the given XML <code>content</code>. - * - * @param content - * the XML content - * @return an LSInput from the given XML <code>content</code> - * - * @throws XMLStreamException - * if reading the XMLStream from the given XML content fails - */ - private LSInput createLSInput(XMLContentType content) throws XMLStreamException { - - ByteArrayOutputStream redirectedStream = content.getRedirectedStream(); - if (redirectedStream != null) { - LSInput input = domImplLS.createLSInput(); - input.setByteStream(new ByteArrayInputStream(redirectedStream.toByteArray())); - return input; - } else { - return null; - } - - } - - /** - * Represents an <code>xsd:Id</code>-attribute value. - * - * @author mcentner - */ - private class IdAttribute { - - private Element element; - - private String namespaceURI; - - private String localName; - - } - - /** - * An implementation of the LSResourceResolver that uses a list of supplements - * to resolve resources. - * - * @author mcentner - */ - private class LSResourceResolverAdapter implements LSResourceResolver { - - List<DataObjectAssociationType> supplements; - - private LSResourceResolverAdapter( - List<DataObjectAssociationType> supplements) { - this.supplements = supplements; - } - - private Exception error; - - /** - * @return the error - */ - public Exception getError() { - return error; - } - - @Override - public LSInput resolveResource(String type, String namespaceURI, - String publicId, String systemId, String baseURI) { - - if (log.isTraceEnabled()) { - log.trace("Resolve resource :" + - "\n type=" + type + - "\n namespaceURI=" + namespaceURI + - "\n publicId=" + publicId + - "\n systemId=" + systemId + - "\n baseURI=" + baseURI); - } - - if (systemId != null) { - - log.debug("Resolve resource '" + systemId + "'."); - - for (DataObjectAssociationType supplement : supplements) { - - Base64XMLLocRefReqRefContentType content = supplement.getContent(); - if (content != null) { - - String reference = content.getReference(); - if (systemId.equals(reference)) { - - try { - if (content.getLocRefContent() != null) { - log.trace("Resolved resource '" + reference + "' to supplement with LocRefContent."); - return createLSInput(content.getLocRefContent()); - } else if (content.getBase64Content() != null) { - log.trace("Resolved resource '" + reference + "' to supplement with Base64Content."); - return createLSInput(content.getBase64Content()); - } else if (content.getXMLContent() != null) { - log.trace("Resolved resource '" + reference + "' to supplement with XMLContent."); - return createLSInput((XMLContentType) content.getXMLContent()); - } else { - return null; - } - } catch (IOException e) { - log.info("Failed to resolve resource '" + systemId + "' to supplement.", e); - error = e; - return null; - } catch (XMLStreamException e) { - log.info("Failed to resolve resource '" + systemId + "' to supplement.", e); - error = e; - return null; - } - - } - - } - - } - - log.info("Failed to resolve resource '" + systemId + "' to supplement. No such supplement."); - - } - - return null; - - } - - - } - -} |