From 6576428966f1e3d688269a407b072fb01f9f7647 Mon Sep 17 00:00:00 2001 From: clemenso Date: Thu, 26 Feb 2009 19:39:00 +0000 Subject: 1.1 candidate (activation) git-svn-id: https://joinup.ec.europa.eu/svn/mocca/trunk@309 8a26b1a7-26f0-462f-b9ef-d0e30c41f5a4 --- .../egiz/bku/slcommands/impl/xsect/DataObject.java | 2078 ++++++++++---------- .../egiz/bku/slcommands/impl/xsect/Signature.java | 5 +- 2 files changed, 1095 insertions(+), 988 deletions(-) (limited to 'bkucommon/src/main/java/at/gv') diff --git a/bkucommon/src/main/java/at/gv/egiz/bku/slcommands/impl/xsect/DataObject.java b/bkucommon/src/main/java/at/gv/egiz/bku/slcommands/impl/xsect/DataObject.java index ae4918ce..b64306aa 100644 --- a/bkucommon/src/main/java/at/gv/egiz/bku/slcommands/impl/xsect/DataObject.java +++ b/bkucommon/src/main/java/at/gv/egiz/bku/slcommands/impl/xsect/DataObject.java @@ -14,98 +14,105 @@ * See the License for the specific language governing permissions and * limitations under the License. */ -package at.gv.egiz.bku.slcommands.impl.xsect; - -import iaik.xml.crypto.dom.DOMCryptoContext; - -import java.io.ByteArrayInputStream; -import java.io.ByteArrayOutputStream; -import java.io.IOException; -import java.io.InputStream; -import java.io.SequenceInputStream; -import java.io.StringWriter; -import java.io.UnsupportedEncodingException; -import java.net.URISyntaxException; -import java.nio.charset.Charset; -import java.security.InvalidAlgorithmParameterException; -import java.security.NoSuchAlgorithmException; -import java.util.ArrayList; +package at.gv.egiz.bku.slcommands.impl.xsect; + +import iaik.xml.crypto.dom.DOMCryptoContext; + +import java.io.ByteArrayInputStream; +import java.io.ByteArrayOutputStream; +import java.io.IOException; +import java.io.InputStream; +import java.io.SequenceInputStream; +import java.io.StringWriter; +import java.io.UnsupportedEncodingException; +import java.net.URISyntaxException; +import java.nio.charset.Charset; +import java.security.InvalidAlgorithmParameterException; +import java.security.NoSuchAlgorithmException; +import java.util.ArrayList; import java.util.Arrays; -import java.util.Collections; -import java.util.HashMap; -import java.util.List; -import java.util.Map; - -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.Transform; -import javax.xml.crypto.dsig.XMLObject; -import javax.xml.crypto.dsig.spec.TransformParameterSpec; -import javax.xml.crypto.dsig.spec.XPathFilter2ParameterSpec; -import javax.xml.crypto.dsig.spec.XPathType; - -import org.apache.commons.logging.Log; -import org.apache.commons.logging.LogFactory; -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.Text; -import org.w3c.dom.bootstrap.DOMImplementationRegistry; -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.LSSerializer; - -import at.buergerkarte.namespaces.securitylayer._1.Base64XMLLocRefOptRefContentType; -import at.buergerkarte.namespaces.securitylayer._1.DataObjectInfoType; -import at.buergerkarte.namespaces.securitylayer._1.MetaInfoType; -import at.buergerkarte.namespaces.securitylayer._1.TransformsInfoType; -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.SLRuntimeException; +import java.util.Collections; +import java.util.HashMap; +import java.util.List; +import java.util.Map; + +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.Transform; +import javax.xml.crypto.dsig.XMLObject; +import javax.xml.crypto.dsig.spec.TransformParameterSpec; +import javax.xml.crypto.dsig.spec.XPathFilter2ParameterSpec; +import javax.xml.crypto.dsig.spec.XPathType; + +import org.apache.commons.logging.Log; +import org.apache.commons.logging.LogFactory; +import org.w3._2000._09.xmldsig_.TransformType; +import org.w3._2000._09.xmldsig_.TransformsType; +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.Text; +import org.w3c.dom.bootstrap.DOMImplementationRegistry; +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.LSSerializer; + +import at.buergerkarte.namespaces.securitylayer._1.Base64XMLLocRefOptRefContentType; +import at.buergerkarte.namespaces.securitylayer._1.DataObjectInfoType; +import at.buergerkarte.namespaces.securitylayer._1.MetaInfoType; +import at.buergerkarte.namespaces.securitylayer._1.TransformsInfoType; +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.SLRuntimeException; import at.gv.egiz.bku.slexceptions.SLViewerException; -import at.gv.egiz.bku.utils.urldereferencer.StreamData; -import at.gv.egiz.bku.utils.urldereferencer.URLDereferencer; +import at.gv.egiz.bku.utils.urldereferencer.StreamData; +import at.gv.egiz.bku.utils.urldereferencer.URLDereferencer; import at.gv.egiz.bku.viewer.ValidationException; import at.gv.egiz.bku.viewer.Validator; import at.gv.egiz.bku.viewer.ValidatorFactory; -import at.gv.egiz.dom.DOMUtils; -import at.gv.egiz.slbinding.impl.XMLContentType; - -/** - * This class represents a DataObject of an XML-Signature - * created by the security layer command CreateXMLSignature. - * - * @author mcentner - */ -public class DataObject { - - /** - * Logging facility. - */ - private static Log log = LogFactory.getLog(DataObject.class); - - /** - * DOM Implementation. - */ - private static final String DOM_LS_3_0 = "LS 3.0"; - - /** - * The array of the default preferred MIME type order. - */ - private static final String[] DEFAULT_PREFFERED_MIME_TYPES = - new String[] { +import at.gv.egiz.dom.DOMUtils; +import at.gv.egiz.marshal.NamespacePrefix; +import at.gv.egiz.marshal.NamespacePrefixMapperImpl; +import at.gv.egiz.slbinding.impl.XMLContentType; +import javax.xml.namespace.NamespaceContext; +import javax.xml.parsers.DocumentBuilder; +import javax.xml.parsers.DocumentBuilderFactory; + +/** + * This class represents a DataObject of an XML-Signature + * created by the security layer command CreateXMLSignature. + * + * @author mcentner + */ +public class DataObject { + + /** + * Logging facility. + */ + private static Log log = LogFactory.getLog(DataObject.class); + + /** + * DOM Implementation. + */ + private static final String DOM_LS_3_0 = "LS 3.0"; + + /** + * The array of the default preferred MIME type order. + */ + private static final String[] DEFAULT_PREFFERED_MIME_TYPES = + new String[] { "text/plain", - "application/xhtml+xml" + "application/xhtml+xml" }; /** @@ -149,87 +156,87 @@ public class DataObject { validMimeTypes = mediaTypes; } - /** - * The DOM implementation used. - */ - private DOMImplementationLS domImplLS; - - /** - * The signature context. - */ - private SignatureContext ctx; - - /** - * The Reference for this DataObject. - */ - private XSECTReference reference; - - /** - * The XMLObject for this DataObject. - */ - private XMLObject xmlObject; - - /** - * The MIME-Type of the digest input. - */ - private String mimeType; - - /** - * An optional description of the digest input. - */ - private String description; - - /** - * Creates a new instance. - * - * @param document the document of the target signature - */ - public DataObject(SignatureContext signatureContext) { - this.ctx = signatureContext; - - DOMImplementationRegistry registry; - try { - registry = DOMImplementationRegistry.newInstance(); - } catch (Exception e) { - log.error("Failed to get DOMImplementationRegistry.", e); - throw new SLRuntimeException("Failed to get DOMImplementationRegistry."); - } - - domImplLS = (DOMImplementationLS) registry.getDOMImplementation(DOM_LS_3_0); - if (domImplLS == null) { - log.error("Failed to get DOMImplementation " + DOM_LS_3_0); - throw new SLRuntimeException("Failed to get DOMImplementation " + DOM_LS_3_0); - } - - } - - /** - * @return the reference - */ - public Reference getReference() { - return reference; - } - - /** - * @return the xmlObject - */ - public XMLObject getXmlObject() { - return xmlObject; - } - - /** - * @return the mimeType - */ - public String getMimeType() { - return mimeType; - } - - /** - * @return the description - */ - public String getDescription() { - return description; - } + /** + * The DOM implementation used. + */ + private DOMImplementationLS domImplLS; + + /** + * The signature context. + */ + private SignatureContext ctx; + + /** + * The Reference for this DataObject. + */ + private XSECTReference reference; + + /** + * The XMLObject for this DataObject. + */ + private XMLObject xmlObject; + + /** + * The MIME-Type of the digest input. + */ + private String mimeType; + + /** + * An optional description of the digest input. + */ + private String description; + + /** + * Creates a new instance. + * + * @param document the document of the target signature + */ + public DataObject(SignatureContext signatureContext) { + this.ctx = signatureContext; + + DOMImplementationRegistry registry; + try { + registry = DOMImplementationRegistry.newInstance(); + } catch (Exception e) { + log.error("Failed to get DOMImplementationRegistry.", e); + throw new SLRuntimeException("Failed to get DOMImplementationRegistry."); + } + + domImplLS = (DOMImplementationLS) registry.getDOMImplementation(DOM_LS_3_0); + if (domImplLS == null) { + log.error("Failed to get DOMImplementation " + DOM_LS_3_0); + throw new SLRuntimeException("Failed to get DOMImplementation " + DOM_LS_3_0); + } + + } + + /** + * @return the reference + */ + public Reference getReference() { + return reference; + } + + /** + * @return the xmlObject + */ + public XMLObject getXmlObject() { + return xmlObject; + } + + /** + * @return the mimeType + */ + public String getMimeType() { + return mimeType; + } + + /** + * @return the description + */ + public String getDescription() { + return description; + } public void validateHashDataInput() throws SLViewerException { @@ -293,823 +300,920 @@ public class DataObject { } } - - /** - * Configures this DataObject with the information provided within the given - * sl:DataObjectInfo. - * - * @param dataObjectInfo - * the sl:DataObjectInfo - * - * @throws SLCommandException - * if configuring this DataObject with the information provided in - * the sl:DataObjectInfo fails. - * @throws SLRequestException - * if the information provided in the sl:DataObjectInfo - * does not conform to the security layer specification. - * @throws NullPointerException - * if dataObjectInfo is null - */ - public void setDataObjectInfo(DataObjectInfoType dataObjectInfo) throws SLCommandException, SLRequestException { - - Base64XMLLocRefOptRefContentType dataObject = dataObjectInfo.getDataObject(); - String structure = dataObjectInfo.getStructure(); - - // select and unmarshal an appropriate transformation path if provided - // and set the final data meta information - XSECTTransforms transforms = createTransformsAndSetFinalDataMetaInfo(dataObjectInfo.getTransformsInfo()); - - if ("enveloping".equals(structure)) { - - // configure this DataObject as an enveloped DataObject - setEnvelopedDataObject(dataObject, transforms); - - } else if ("detached".equals(structure)) { - - // configure this DataObject as an detached DataObject - setDetachedDataObject(dataObject, transforms); - - } - // other values are not allowed by the schema and are therefore ignored - - } - - /** - * Configures this DataObject as an enveloped DataObject with the information - * provided within the given sl:DataObject. - * - * @param dataObject - * the sl:DataObject - * @param transforms - * an optional Transforms element (may be - * null) - * - * @throws SLCommandException - * if configuring this DataObject with the information provided in - * the sl:DataObject fails. - * @throws SLRequestException - * if the information provided in the sl:DataObject - * does not conform to the security layer specification. - * @throws NullPointerException - * if dataObject is null - */ - private void setEnvelopedDataObject( - Base64XMLLocRefOptRefContentType dataObject, XSECTTransforms transforms) - throws SLCommandException, SLRequestException { - - String reference = dataObject.getReference(); - if (reference == null) { - // - // case A - // - // The Reference attribute is not used; the content of sl:DataObject represents the data object. - // If the data object is XML-coded (the sl:XMLContent element is used in sl:DataObject), then it - // must be incorporated in the signature structure as parsed XML. - // - - if (dataObject.getBase64Content() != null) { - - log.debug("Adding DataObject (Base64Content) without a reference URI."); - - // create XMLObject - XMLObject xmlObject = createXMLObject(new ByteArrayInputStream(dataObject.getBase64Content())); - - setXMLObjectAndReferenceBase64(xmlObject, transforms); - - } else if (dataObject.getXMLContent() != null) { - - log.debug("Adding DataObject (XMLContent) without a reference URI."); - - // create XMLObject - DocumentFragment content = parseDataObject((XMLContentType) dataObject.getXMLContent()); - XMLObject xmlObject = createXMLObject(content); - - setXMLObjectAndReferenceXML(xmlObject, transforms); - - } else if (dataObject.getLocRefContent() != null) { - - log.debug("Adding DataObject (LocRefContent) without a reference URI."); - - setEnvelopedDataObject(dataObject.getLocRefContent(), transforms); - - } else { - - // not allowed - log.info("XML structure of the command request contains an " + - "invalid combination of optional elements or attributes. " + - "DataObject of structure='enveloped' without a reference must contain content."); - throw new SLRequestException(3003); - - } - - } else { - - if (dataObject.getBase64Content() == null && - dataObject.getXMLContent() == null && - dataObject.getLocRefContent() == null) { - - // - // case B - // - // The Reference attribute contains a URI that must be resolved by the - // Citizen Card Environment to obtain the data object. - // The content of sl:DataObject remains empty - // - - log.debug("Adding DataObject from reference URI '" + reference + "'."); - - setEnvelopedDataObject(reference, transforms); - - } else { - - // not allowed - log.info("XML structure of the command request contains an " + - "invalid combination of optional elements or attributes. " + - "DataObject of structure='enveloped' with reference must not contain content."); - throw new SLRequestException(3003); - - } - - - } - - } - - /** - * Configures this DataObject as an enveloped DataObject with the content to - * be dereferenced from the given reference. - * - * @param reference - * the reference URI - * @param transforms - * an optional Transforms element (may be - * null) - * - * @throws SLCommandException - * if dereferencing the given reference fails, or if - * configuring this DataObject with the data dereferenced from the - * given reference fails. - * @throws NullPointerException - * if reference is null - */ - private void setEnvelopedDataObject(String reference, XSECTTransforms transforms) throws SLCommandException { - - if (reference == null) { - throw new NullPointerException("Argument 'reference' must not be null."); - } - - // dereference URL - URLDereferencer dereferencer = URLDereferencer.getInstance(); - - StreamData streamData; - try { - streamData = dereferencer.dereference(reference, ctx.getDereferencerContext()); - } catch (IOException e) { - log.info("Failed to dereference XMLObject from '" + reference + "'.", e); - throw new SLCommandException(4110); - } - - Node childNode; - - String contentType = streamData.getContentType(); - if (contentType.startsWith("text/xml")) { - - // If content type is text/xml parse content. - String charset = HttpUtil.getCharset(contentType, true); - - Document doc = parseDataObject(streamData.getStream(), charset); - - childNode = doc.getDocumentElement(); - - if (childNode == null) { - log.info("Failed to parse XMLObject from '" + reference + "'."); - throw new SLCommandException(4111); - } - - XMLObject xmlObject = createXMLObject(childNode); - - setXMLObjectAndReferenceXML(xmlObject, transforms); - - } else { - - // Include content Base64 encoded. - XMLObject xmlObject = createXMLObject(streamData.getStream()); - - setXMLObjectAndReferenceBase64(xmlObject, transforms); - - } - - } - - /** - * Configures this DataObject as an detached DataObject with the information - * provided in the given sl:DataObject and optionally - * transforms. - * - * @param dataObject - * the sl:DataObject - * @param transforms - * an optional Transforms object, may be null - * - * @throws SLCommandException - * if configuring this DataObject with the information provided in - * the sl:DataObject fails. - * @throws SLRequestException - * if the information provided in the sl:DataObject - * does not conform to the security layer specification. - * @throws NullPointerException - * if dataObject is null - */ - private void setDetachedDataObject( - Base64XMLLocRefOptRefContentType dataObject, XSECTTransforms transforms) - throws SLCommandException, SLRequestException { - - String referenceURI = dataObject.getReference(); - - if (referenceURI == null) { - - // not allowed - log.info("XML structure of the command request contains an " + - "invalid combination of optional elements or attributes. " + - "DataObject of structure='detached' must contain a reference."); - throw new SLRequestException(3003); - - } else { - - DigestMethod dm; - try { - dm = ctx.getAlgorithmMethodFactory().createDigestMethod(ctx); - } catch (NoSuchAlgorithmException e) { - log.error("Failed to get DigestMethod.", e); - throw new SLCommandException(4006); - } catch (InvalidAlgorithmParameterException e) { - log.error("Failed to get DigestMethod.", e); - throw new SLCommandException(4006); - } - - String idValue = ctx.getIdValueFactory().createIdValue("Reference"); - - reference = new XSECTReference(referenceURI, dm, transforms, null, idValue); - - // case D: - // - // The Reference attribute contains a URI that is used by the Citizen Card - // Environment to code the reference to the data object as part of the XML - // signature (attribute URI in the dsig:Reference) element. The content of - // sl:DataObject represents the data object. - - if (dataObject.getLocRefContent() != null) { - String locRef = dataObject.getLocRefContent(); - try { - this.reference.setDereferencer(new LocRefDereferencer(ctx.getDereferencerContext(), locRef)); - } catch (URISyntaxException e) { - log.info("Invalid URI '" + locRef + "' in DataObject.", e); - throw new SLCommandException(4003); - } catch (IllegalArgumentException e) { - log.info("LocRef URI of '" + locRef + "' not supported in DataObject. ", e); - throw new SLCommandException(4003); - } - } else if (dataObject.getBase64Content() != null) { - byte[] base64Content = dataObject.getBase64Content(); - this.reference.setDereferencer(new ByteArrayDereferencer(base64Content)); - } else if (dataObject.getXMLContent() != null) { - XMLContentType xmlContent = (XMLContentType) dataObject.getXMLContent(); - byte[] bytes = xmlContent.getRedirectedStream().toByteArray(); - this.reference.setDereferencer(new ByteArrayDereferencer(bytes)); - } else { - - // case C: - // - // The Reference attribute contains a URI that must be resolved by the - // Citizen Card Environment to obtain the data object. The Reference - // attribute contains a URI that is used by the Citizen Card Environment - // to code the reference to the data object as part of the XML signature - // (attribute URI in the dsig:Reference) element. The content of - // sl:DataObject remains empty. - - } - - } - } - - /** - * Returns the preferred sl:TransformInfo from the given list of - * transformInfos, or null if none of the given - * transformInfos is preferred over the others. - * - * @param transformsInfos - * a list of sl:TransformInfos - * - * @return the selected sl:TransformInfo or null, if - * none is preferred over the others - */ - private TransformsInfoType selectPreferredTransformsInfo(List transformsInfos) { - - Map mimeTypes = new HashMap(); - - StringBuilder debugString = null; - if (log.isDebugEnabled()) { - debugString = new StringBuilder(); - debugString.append("Got " + transformsInfos.size() + " TransformsInfo(s):"); - } - - for (TransformsInfoType transformsInfoType : transformsInfos) { - MetaInfoType finalDataMetaInfo = transformsInfoType.getFinalDataMetaInfo(); - String mimeType = finalDataMetaInfo.getMimeType(); - String description = finalDataMetaInfo.getDescription(); - mimeTypes.put(mimeType, transformsInfoType); - if (debugString != null) { - debugString.append("\n FinalDataMetaInfo: MIME-Type="); - debugString.append(mimeType); - if (description != null) { - debugString.append(" "); - debugString.append(description); - } - } - } - - if (debugString != null) { - log.debug(debugString); - } - - // look for preferred transform - for (String mimeType : DEFAULT_PREFFERED_MIME_TYPES) { - if (mimeTypes.containsKey(mimeType)) { - return mimeTypes.get(mimeType); - } - } - - // no preferred transform - return null; - - } - - /** - * Create an instance of ds:Transforms from the given - * sl:TransformsInfo. - * - * @param transformsInfo - * the sl:TransformsInfo - * - * @return a corresponding unmarshalled ds:Transforms, or - * null if the given sl:TransformsInfo does - * not contain a dsig:Transforms element - * - * @throws SLRequestException - * if the ds:Transforms in the given - * transformsInfo are not valid or cannot be parsed. - * - * @throws MarshalException - * if the ds:Transforms in the given - * transformsInfo cannot be unmarshalled. - */ - private XSECTTransforms createTransforms(TransformsInfoType transformsInfo) throws SLRequestException, MarshalException { - - ByteArrayOutputStream redirectedStream = ((at.gv.egiz.slbinding.impl.TransformsInfoType) transformsInfo).getRedirectedStream(); - byte[] transformBytes = (redirectedStream != null) ? redirectedStream.toByteArray() : null; - - if (transformBytes != null && transformBytes.length > 0) { - - // debug - if (log.isTraceEnabled()) { - StringBuilder sb = new StringBuilder(); - sb.append("Trying to parse transforms:\n"); - sb.append(new String(transformBytes, Charset.forName("UTF-8"))); - log.trace(sb); - } - - DOMImplementationLS domImplLS = DOMUtils.getDOMImplementationLS(); - LSInput input = domImplLS.createLSInput(); - input.setByteStream(new ByteArrayInputStream(transformBytes)); - - LSParser parser = domImplLS.createLSParser( - DOMImplementationLS.MODE_SYNCHRONOUS, null); - DOMConfiguration domConfig = parser.getDomConfig(); - SimpleDOMErrorHandler errorHandler = new SimpleDOMErrorHandler(); - domConfig.setParameter("error-handler", errorHandler); - domConfig.setParameter("validate", Boolean.FALSE); - - Document document; - try { - document = parser.parse(input); - } catch (DOMException e) { - log.info("Failed to parse dsig:Transforms.", e); - throw new SLRequestException(3002); - } catch (LSException e) { - log.info("Failed to parse dsig:Transforms.", e); - throw new SLRequestException(3002); - } - - // adopt ds:Transforms - Element documentElement = document.getDocumentElement(); - Node adoptedTransforms = ctx.getDocument().adoptNode(documentElement); - - DOMCryptoContext context = new DOMCryptoContext(); - - // unmarshall ds:Transforms - return new XSECTTransforms(context, adoptedTransforms); - - } else { - return null; - } - - } - - /** - * Sets the mimeType and the description value - * for this DataObject. - * - * @param metaInfoType the sl:FinalMetaDataInfo - * - * @throws NullPointerException if metaInfoType is null - */ - private void setFinalDataMetaInfo(MetaInfoType metaInfoType) { - - this.mimeType = metaInfoType.getMimeType(); - this.description = metaInfoType.getDescription(); - - } - - /** - * Selects an appropriate transformation path (if present) from the given list - * of sl:TransformInfos, sets the corresponding final data meta info and - * returns the corresponding unmarshalled ds:Transforms. - * - * @param transformsInfos the sl:TransformInfos - * - * @return the unmarshalled ds:Transforms, or null if - * no transformation path has been selected. - * - * @throws SLRequestException if the given list ds:TransformsInfo contains - * an invalid ds:Transforms element, or no suitable transformation path - * can be found. - */ - private XSECTTransforms createTransformsAndSetFinalDataMetaInfo( - List transformsInfos) throws SLRequestException { - - TransformsInfoType preferredTransformsInfo = selectPreferredTransformsInfo(transformsInfos); - // try preferred transform - if (preferredTransformsInfo != null) { - - try { - XSECTTransforms transforms = createTransforms(preferredTransformsInfo); - setFinalDataMetaInfo(preferredTransformsInfo.getFinalDataMetaInfo()); - return transforms; - } catch (MarshalException e) { - - String mimeType = preferredTransformsInfo.getFinalDataMetaInfo().getMimeType(); - log.info("Failed to unmarshal preferred transformation path (MIME-Type=" - + mimeType + ").", e); - - } - - } - - // look for another suitable transformation path - for (TransformsInfoType transformsInfoType : transformsInfos) { - - try { - XSECTTransforms transforms = createTransforms(transformsInfoType); - setFinalDataMetaInfo(transformsInfoType.getFinalDataMetaInfo()); - return transforms; - } catch (MarshalException e) { - - String mimeType = transformsInfoType.getFinalDataMetaInfo().getMimeType(); - log.info("Failed to unmarshal transformation path (MIME-Type=" - + mimeType + ").", e); - } - - } - - // no suitable transformation path found - throw new SLRequestException(3003); - - } - - /** - * Create an XMLObject with the Base64 encoding of the given - * content. - * - * @param content - * the to-be Base64 encoded content - * @return an XMLObject with the Base64 encoded content - */ - private XMLObject createXMLObject(InputStream content) { - - Text textNode; - try { - textNode = at.gv.egiz.dom.DOMUtils.createBase64Text(content, ctx.getDocument()); - } catch (IOException e) { - log.error(e); - throw new SLRuntimeException(e); - } - - DOMStructure structure = new DOMStructure(textNode); - - String idValue = ctx.getIdValueFactory().createIdValue("Object"); - - return ctx.getSignatureFactory().newXMLObject(Collections.singletonList(structure), idValue, null, null); - - } - - /** - * Create an XMLObject with the given content node. - * - * @param content the content node - * - * @return an XMLObject with the given content - */ - private XMLObject createXMLObject(Node content) { - - String idValue = ctx.getIdValueFactory().createIdValue("Object"); - - List structures = Collections.singletonList(new DOMStructure(content)); - - return ctx.getSignatureFactory().newXMLObject(structures, idValue, null, null); - - } - - /** - * Sets the given xmlObject and creates and sets a corresponding - * Reference. - *

- * A transform to Base64-decode the xmlObject's content is inserted at the top - * of to the optional transforms if given, or to a newly created - * Transforms element if transforms is - * null. - * - * @param xmlObject - * the XMLObject - * @param transforms - * an optional Transforms element (may be - * null) - * - * @throws SLCommandException - * if creating the Reference fails - * @throws NullPointerException - * if xmlObject is null - */ - private void setXMLObjectAndReferenceBase64(XMLObject xmlObject, XSECTTransforms transforms) throws SLCommandException { - - // create reference URI - // - // NOTE: the ds:Object can be referenced directly, as the Base64 transform - // operates on the text() of the input nodelist. - // - String referenceURI = "#" + xmlObject.getId(); - - // create Base64 Transform - Transform transform; - try { - transform = ctx.getSignatureFactory().newTransform(Transform.BASE64, (TransformParameterSpec) null); - } catch (NoSuchAlgorithmException e) { - // algorithm must be present - throw new SLRuntimeException(e); - } catch (InvalidAlgorithmParameterException e) { - // algorithm does not take parameters - throw new SLRuntimeException(e); - } - - if (transforms == null) { - transforms = new XSECTTransforms(Collections.singletonList(transform)); - } else { - transforms.insertTransform(transform); - } - - DigestMethod dm; - try { - dm = ctx.getAlgorithmMethodFactory().createDigestMethod(ctx); - } catch (NoSuchAlgorithmException e) { - log.error("Failed to get DigestMethod.", e); - throw new SLCommandException(4006); - } catch (InvalidAlgorithmParameterException e) { - log.error("Failed to get DigestMethod.", e); - throw new SLCommandException(4006); - } - String id = ctx.getIdValueFactory().createIdValue("Reference"); - - this.xmlObject = xmlObject; - this.reference = new XSECTReference(referenceURI, dm, transforms, null, id); - - } - - /** - * Sets the given xmlObject and creates and sets a corresponding - * Reference. - *

- * A transform to select the xmlObject's content is inserted at the top of to - * the optional transforms if given, or to a newly created - * Transforms element if transforms is - * null. - *

- * - * @param xmlObject - * the XMLObject - * @param transforms - * an optional Transforms element (may be - * null) - * - * @throws SLCommandException - * if creating the Reference fails - * @throws NullPointerException - * if xmlObject is null - */ - private void setXMLObjectAndReferenceXML(XMLObject xmlObject, XSECTTransforms transforms) throws SLCommandException { - - // create reference URI - String referenceURI = "#" + xmlObject.getId(); - - // create Transform to select ds:Object's children - Transform xpathTransform; - Transform c14nTransform; - try { - - XPathType xpath = new XPathType("id(\"" + xmlObject.getId() + "\")/node()", XPathType.Filter.INTERSECT); - List xpaths = Collections.singletonList(xpath); - XPathFilter2ParameterSpec params = new XPathFilter2ParameterSpec(xpaths); - - xpathTransform = ctx.getSignatureFactory().newTransform(Transform.XPATH2, params); - - // add exclusive canonicalization to avoid signing the namespace context of the ds:Object - c14nTransform = ctx.getSignatureFactory().newTransform(CanonicalizationMethod.EXCLUSIVE, (TransformParameterSpec) null); - - } catch (NoSuchAlgorithmException e) { - // algorithm must be present - throw new SLRuntimeException(e); - } catch (InvalidAlgorithmParameterException e) { - // params must be appropriate - throw new SLRuntimeException(e); - } - - if (transforms == null) { - List newTransfroms = new ArrayList(); - newTransfroms.add(xpathTransform); - newTransfroms.add(c14nTransform); - transforms = new XSECTTransforms(newTransfroms); - } else { - transforms.insertTransform(xpathTransform); - } - - DigestMethod dm; - try { - dm = ctx.getAlgorithmMethodFactory().createDigestMethod(ctx); - } catch (NoSuchAlgorithmException e) { - log.error("Failed to get DigestMethod.", e); - throw new SLCommandException(4006); - } catch (InvalidAlgorithmParameterException e) { - log.error("Failed to get DigestMethod.", e); - throw new SLCommandException(4006); - } - String id = ctx.getIdValueFactory().createIdValue("Reference"); - - this.xmlObject = xmlObject; - this.reference = new XSECTReference(referenceURI, dm, transforms, null, id); - - } - - /** - * Parses the given xmlContent and returns a corresponding - * document fragment. - * - *

- * The to-be parsed content is surrounded by ... elements to - * allow for mixed (e.g. Text and Element) content in XMLContent. - *

- * - * @param xmlContent - * the XMLContent to-be parsed - * - * @return a document fragment containing the parsed nodes - * - * @throws SLCommandException - * if parsing the given xmlContent fails - * - * @throws NullPointerException - * if xmlContent is null - */ - private DocumentFragment parseDataObject(XMLContentType xmlContent) throws SLCommandException { - - ByteArrayOutputStream redirectedStream = xmlContent.getRedirectedStream(); - - // Note: We can assume a fixed character encoding of UTF-8 for the - // content of the redirect stream as the content has already been parsed - // and serialized again to the redirect stream. - - List inputStreams = new ArrayList(); - try { - // dummy start element - inputStreams.add(new ByteArrayInputStream("".getBytes("UTF-8"))); - - // content - inputStreams.add(new ByteArrayInputStream(redirectedStream.toByteArray())); - - // dummy end element - inputStreams.add(new ByteArrayInputStream("".getBytes("UTF-8"))); - } catch (UnsupportedEncodingException e) { - throw new SLRuntimeException(e); - } - - SequenceInputStream inputStream = new SequenceInputStream(Collections.enumeration(inputStreams)); - - // parse DataObject - Document doc = parseDataObject(inputStream, "UTF-8"); - - Element documentElement = doc.getDocumentElement(); - - if (documentElement == null || - !"dummy".equals(documentElement.getLocalName())) { - log.info("Failed to parse DataObject XMLContent."); - throw new SLCommandException(4111); - } - - DocumentFragment fragment = doc.createDocumentFragment(); - while (documentElement.getFirstChild() != null) { - fragment.appendChild(documentElement.getFirstChild()); - } - - // log parsed document - if (log.isTraceEnabled()) { - - StringWriter writer = new StringWriter(); - - writer.write("DataObject:\n"); - - LSOutput output = domImplLS.createLSOutput(); - output.setCharacterStream(writer); - output.setEncoding("UTF-8"); - LSSerializer serializer = domImplLS.createLSSerializer(); - serializer.getDomConfig().setParameter("xml-declaration", Boolean.FALSE); - serializer.write(fragment, output); - - log.trace(writer.toString()); - } - - return fragment; - - } - - /** - * Parses the given inputStream using the given - * encoding and returns the parsed document. - * - * @param inputStream - * the to-be parsed input - * - * @param encoding - * the encoding to be used for parsing the given - * inputStream - * - * @return the parsed document - * - * @throws SLCommandException - * if parsing the inputStream fails. - * - * @throws NullPointerException - * if inputStram is null - */ - private Document parseDataObject(InputStream inputStream, String encoding) throws SLCommandException { - - LSInput input = domImplLS.createLSInput(); - input.setByteStream(inputStream); - - if (encoding != null) { - input.setEncoding(encoding); - } - - LSParser parser = domImplLS.createLSParser(DOMImplementationLS.MODE_SYNCHRONOUS, null); - DOMConfiguration domConfig = parser.getDomConfig(); - SimpleDOMErrorHandler errorHandler = new SimpleDOMErrorHandler(); - domConfig.setParameter("error-handler", errorHandler); - domConfig.setParameter("validate", Boolean.FALSE); - - Document doc; - try { - doc = parser.parse(input); - } catch (DOMException e) { - log.info("Existing XML document cannot be parsed.", e); - throw new SLCommandException(4111); - } catch (LSException e) { - log.info("Existing XML document cannot be parsed. ", e); - throw new SLCommandException(4111); - } - - if (errorHandler.hasErrors()) { - // log errors - if (log.isInfoEnabled()) { - List errorMessages = errorHandler.getErrorMessages(); - StringBuffer sb = new StringBuffer(); - for (String errorMessage : errorMessages) { - sb.append(" "); - sb.append(errorMessage); - } - log.info("Existing XML document cannot be parsed. " + sb.toString()); - } - throw new SLCommandException(4111); - } - - return doc; - - } - - -} + + /** + * Configures this DataObject with the information provided within the given + * sl:DataObjectInfo. + * + * @param dataObjectInfo + * the sl:DataObjectInfo + * + * @throws SLCommandException + * if configuring this DataObject with the information provided in + * the sl:DataObjectInfo fails. + * @throws SLRequestException + * if the information provided in the sl:DataObjectInfo + * does not conform to the security layer specification. + * @throws NullPointerException + * if dataObjectInfo is null + */ + public void setDataObjectInfo(DataObjectInfoType dataObjectInfo) throws SLCommandException, SLRequestException { + + Base64XMLLocRefOptRefContentType dataObject = dataObjectInfo.getDataObject(); + String structure = dataObjectInfo.getStructure(); + + // select and unmarshal an appropriate transformation path if provided + // and set the final data meta information + XSECTTransforms transforms = createTransformsAndSetFinalDataMetaInfo(dataObjectInfo.getTransformsInfo()); + + if ("enveloping".equals(structure)) { + + // configure this DataObject as an enveloped DataObject + setEnvelopedDataObject(dataObject, transforms); + + } else if ("detached".equals(structure)) { + + // configure this DataObject as an detached DataObject + setDetachedDataObject(dataObject, transforms); + + } + // other values are not allowed by the schema and are therefore ignored + + } + + private byte[] getTransformsBytes(at.gv.egiz.slbinding.impl.TransformsInfoType ti) { + return ti.getRedirectedStream().toByteArray(); +// byte[] transformsBytes = ti.getRedirectedStream().toByteArray(); +// +// if (transformsBytes == null || transformsBytes.length == 0) { +// return null; +// } +// +// String dsigPrefix = ti.getNamespaceContext().getNamespaceURI("http://www.w3.org/2000/09/xmldsig#"); +// byte[] pre, post; +// if (dsigPrefix == null) { +// log.trace("XMLDSig not declared in outside dsig:Transforms"); +// pre = "".getBytes(); +// post = "".getBytes(); +// } else { +// log.trace("XMLDSig bound to prefix " + dsigPrefix); +// pre = ("").getBytes(); +// post = "".getBytes(); +// } +// +// byte[] workaround = new byte[pre.length + transformsBytes.length + post.length]; +// System.arraycopy(pre, 0, workaround, 0, pre.length); +// System.arraycopy(transformsBytes, 0, workaround, pre.length, transformsBytes.length); +// System.arraycopy(post, 0, workaround, pre.length + transformsBytes.length, post.length); +// return workaround; + } + + /** + * Configures this DataObject as an enveloped DataObject with the information + * provided within the given sl:DataObject. + * + * @param dataObject + * the sl:DataObject + * @param transforms + * an optional Transforms element (may be + * null) + * + * @throws SLCommandException + * if configuring this DataObject with the information provided in + * the sl:DataObject fails. + * @throws SLRequestException + * if the information provided in the sl:DataObject + * does not conform to the security layer specification. + * @throws NullPointerException + * if dataObject is null + */ + private void setEnvelopedDataObject( + Base64XMLLocRefOptRefContentType dataObject, XSECTTransforms transforms) + throws SLCommandException, SLRequestException { + + String reference = dataObject.getReference(); + if (reference == null) { + // + // case A + // + // The Reference attribute is not used; the content of sl:DataObject represents the data object. + // If the data object is XML-coded (the sl:XMLContent element is used in sl:DataObject), then it + // must be incorporated in the signature structure as parsed XML. + // + + if (dataObject.getBase64Content() != null) { + + log.debug("Adding DataObject (Base64Content) without a reference URI."); + + // create XMLObject + XMLObject xmlObject = createXMLObject(new ByteArrayInputStream(dataObject.getBase64Content())); + + setXMLObjectAndReferenceBase64(xmlObject, transforms); + + } else if (dataObject.getXMLContent() != null) { + + log.debug("Adding DataObject (XMLContent) without a reference URI."); + + // create XMLObject + DocumentFragment content = parseDataObject((XMLContentType) dataObject.getXMLContent()); + XMLObject xmlObject = createXMLObject(content); + + setXMLObjectAndReferenceXML(xmlObject, transforms); + + } else if (dataObject.getLocRefContent() != null) { + + log.debug("Adding DataObject (LocRefContent) without a reference URI."); + + setEnvelopedDataObject(dataObject.getLocRefContent(), transforms); + + } else { + + // not allowed + log.info("XML structure of the command request contains an " + + "invalid combination of optional elements or attributes. " + + "DataObject of structure='enveloped' without a reference must contain content."); + throw new SLRequestException(3003); + + } + + } else { + + if (dataObject.getBase64Content() == null && + dataObject.getXMLContent() == null && + dataObject.getLocRefContent() == null) { + + // + // case B + // + // The Reference attribute contains a URI that must be resolved by the + // Citizen Card Environment to obtain the data object. + // The content of sl:DataObject remains empty + // + + log.debug("Adding DataObject from reference URI '" + reference + "'."); + + setEnvelopedDataObject(reference, transforms); + + } else { + + // not allowed + log.info("XML structure of the command request contains an " + + "invalid combination of optional elements or attributes. " + + "DataObject of structure='enveloped' with reference must not contain content."); + throw new SLRequestException(3003); + + } + + + } + + } + + /** + * Configures this DataObject as an enveloped DataObject with the content to + * be dereferenced from the given reference. + * + * @param reference + * the reference URI + * @param transforms + * an optional Transforms element (may be + * null) + * + * @throws SLCommandException + * if dereferencing the given reference fails, or if + * configuring this DataObject with the data dereferenced from the + * given reference fails. + * @throws NullPointerException + * if reference is null + */ + private void setEnvelopedDataObject(String reference, XSECTTransforms transforms) throws SLCommandException { + + if (reference == null) { + throw new NullPointerException("Argument 'reference' must not be null."); + } + + // dereference URL + URLDereferencer dereferencer = URLDereferencer.getInstance(); + + StreamData streamData; + try { + streamData = dereferencer.dereference(reference, ctx.getDereferencerContext()); + } catch (IOException e) { + log.info("Failed to dereference XMLObject from '" + reference + "'.", e); + throw new SLCommandException(4110); + } + + Node childNode; + + String contentType = streamData.getContentType(); + if (contentType.startsWith("text/xml")) { + + // If content type is text/xml parse content. + String charset = HttpUtil.getCharset(contentType, true); + + Document doc = parseDataObject(streamData.getStream(), charset); + + childNode = doc.getDocumentElement(); + + if (childNode == null) { + log.info("Failed to parse XMLObject from '" + reference + "'."); + throw new SLCommandException(4111); + } + + XMLObject xmlObject = createXMLObject(childNode); + + setXMLObjectAndReferenceXML(xmlObject, transforms); + + } else { + + // Include content Base64 encoded. + XMLObject xmlObject = createXMLObject(streamData.getStream()); + + setXMLObjectAndReferenceBase64(xmlObject, transforms); + + } + + } + + /** + * Configures this DataObject as an detached DataObject with the information + * provided in the given sl:DataObject and optionally + * transforms. + * + * @param dataObject + * the sl:DataObject + * @param transforms + * an optional Transforms object, may be null + * + * @throws SLCommandException + * if configuring this DataObject with the information provided in + * the sl:DataObject fails. + * @throws SLRequestException + * if the information provided in the sl:DataObject + * does not conform to the security layer specification. + * @throws NullPointerException + * if dataObject is null + */ + private void setDetachedDataObject( + Base64XMLLocRefOptRefContentType dataObject, XSECTTransforms transforms) + throws SLCommandException, SLRequestException { + + String referenceURI = dataObject.getReference(); + + if (referenceURI == null) { + + // not allowed + log.info("XML structure of the command request contains an " + + "invalid combination of optional elements or attributes. " + + "DataObject of structure='detached' must contain a reference."); + throw new SLRequestException(3003); + + } else { + + DigestMethod dm; + try { + dm = ctx.getAlgorithmMethodFactory().createDigestMethod(ctx); + } catch (NoSuchAlgorithmException e) { + log.error("Failed to get DigestMethod.", e); + throw new SLCommandException(4006); + } catch (InvalidAlgorithmParameterException e) { + log.error("Failed to get DigestMethod.", e); + throw new SLCommandException(4006); + } + + String idValue = ctx.getIdValueFactory().createIdValue("Reference"); + + reference = new XSECTReference(referenceURI, dm, transforms, null, idValue); + + // case D: + // + // The Reference attribute contains a URI that is used by the Citizen Card + // Environment to code the reference to the data object as part of the XML + // signature (attribute URI in the dsig:Reference) element. The content of + // sl:DataObject represents the data object. + + if (dataObject.getLocRefContent() != null) { + String locRef = dataObject.getLocRefContent(); + try { + this.reference.setDereferencer(new LocRefDereferencer(ctx.getDereferencerContext(), locRef)); + } catch (URISyntaxException e) { + log.info("Invalid URI '" + locRef + "' in DataObject.", e); + throw new SLCommandException(4003); + } catch (IllegalArgumentException e) { + log.info("LocRef URI of '" + locRef + "' not supported in DataObject. ", e); + throw new SLCommandException(4003); + } + } else if (dataObject.getBase64Content() != null) { + byte[] base64Content = dataObject.getBase64Content(); + this.reference.setDereferencer(new ByteArrayDereferencer(base64Content)); + } else if (dataObject.getXMLContent() != null) { + XMLContentType xmlContent = (XMLContentType) dataObject.getXMLContent(); + byte[] bytes = xmlContent.getRedirectedStream().toByteArray(); + this.reference.setDereferencer(new ByteArrayDereferencer(bytes)); + } else { + + // case C: + // + // The Reference attribute contains a URI that must be resolved by the + // Citizen Card Environment to obtain the data object. The Reference + // attribute contains a URI that is used by the Citizen Card Environment + // to code the reference to the data object as part of the XML signature + // (attribute URI in the dsig:Reference) element. The content of + // sl:DataObject remains empty. + + } + + } + } + + /** + * Returns the preferred sl:TransformInfo from the given list of + * transformInfos, or null if none of the given + * transformInfos is preferred over the others. + * + * @param transformsInfos + * a list of sl:TransformInfos + * + * @return the selected sl:TransformInfo or null, if + * none is preferred over the others + */ + private TransformsInfoType selectPreferredTransformsInfo(List transformsInfos) { + + Map mimeTypes = new HashMap(); + + StringBuilder debugString = null; + if (log.isDebugEnabled()) { + debugString = new StringBuilder(); + debugString.append("Got " + transformsInfos.size() + " TransformsInfo(s):"); + } + + for (TransformsInfoType transformsInfoType : transformsInfos) { + MetaInfoType finalDataMetaInfo = transformsInfoType.getFinalDataMetaInfo(); + String mimeType = finalDataMetaInfo.getMimeType(); + String description = finalDataMetaInfo.getDescription(); + mimeTypes.put(mimeType, transformsInfoType); + if (debugString != null) { + debugString.append("\n FinalDataMetaInfo: MIME-Type="); + debugString.append(mimeType); + if (description != null) { + debugString.append(" "); + debugString.append(description); + } + } + } + + if (debugString != null) { + log.debug(debugString); + } + + // look for preferred transform + for (String mimeType : DEFAULT_PREFFERED_MIME_TYPES) { + if (mimeTypes.containsKey(mimeType)) { + return mimeTypes.get(mimeType); + } + } + + // no preferred transform + return null; + + } + + /** + * Create an instance of ds:Transforms from the given + * sl:TransformsInfo. + * + * @param transformsInfo + * the sl:TransformsInfo + * + * @return a corresponding unmarshalled ds:Transforms, or + * null if the given sl:TransformsInfo does + * not contain a dsig:Transforms element + * + * @throws SLRequestException + * if the ds:Transforms in the given + * transformsInfo are not valid or cannot be parsed. + * + * @throws MarshalException + * if the ds:Transforms in the given + * transformsInfo cannot be unmarshalled. + */ + private XSECTTransforms createTransforms(TransformsInfoType transformsInfo) throws SLRequestException, MarshalException { + + byte[] transforms = getTransformsBytes((at.gv.egiz.slbinding.impl.TransformsInfoType) transformsInfo); + + if (transforms != null && transforms.length > 0) { + // debug + if (log.isTraceEnabled()) { + StringBuilder sb = new StringBuilder(); + sb.append("Trying to parse transforms:\n"); + sb.append(new String(transforms, Charset.forName("UTF-8"))); + log.trace(sb); + } + + DOMImplementationLS domImplLS = DOMUtils.getDOMImplementationLS(); + LSInput input = domImplLS.createLSInput(); + input.setByteStream(new ByteArrayInputStream(transforms)); + + LSParser parser = domImplLS.createLSParser( + DOMImplementationLS.MODE_SYNCHRONOUS, null); + DOMConfiguration domConfig = parser.getDomConfig(); + SimpleDOMErrorHandler errorHandler = new SimpleDOMErrorHandler(); + domConfig.setParameter("error-handler", errorHandler); + domConfig.setParameter("validate", Boolean.FALSE); + + Document document; + try { + document = parser.parse(input); + } catch (DOMException e) { + log.info("Failed to parse dsig:Transforms.", e); + throw new SLRequestException(3002); + } catch (LSException e) { + log.info("Failed to parse dsig:Transforms.", e); + throw new SLRequestException(3002); + } + + // adopt ds:Transforms + Element transformsElt = document.getDocumentElement(); + Node adoptedTransforms = ctx.getDocument().adoptNode(transformsElt); + + DOMCryptoContext context = new DOMCryptoContext(); + + // unmarshall ds:Transforms + return new XSECTTransforms(context, adoptedTransforms); + + } else { + return null; + } + + +// TransformsType transformsType = transformsInfo.getTransforms(); +// if (transformsType == null) { +// return null; +// } +// List transformList = transformsType.getTransform(); +// +// DOMImplementationLS domImplLS = DOMUtils.getDOMImplementationLS(); +//// Document transformsDoc = ((DOMImplementation) domImplLS).createDocument("http://www.w3.org/2000/09/xmldsig#", "Transforms", null); +//// Element transforms = transformsDoc.getDocumentElement(); +// Document transformsDoc = DOMUtils.createDocument(); +// Element transforms = transformsDoc.createElementNS( +// "http://www.w3.org/2000/09/xmldsig#", +// Signature.XMLDSIG_PREFIX + ":Transforms"); +// transformsDoc.appendChild(transforms); +// +// for (TransformType transformType : transformList) { +// log.trace("found " + transformType.getClass().getName()); +// Element transform = transformsDoc.createElementNS( +// "http://www.w3.org/2000/09/xmldsig#", +// Signature.XMLDSIG_PREFIX + ":Transform"); +// String algorithm = transformType.getAlgorithm(); +// if (algorithm != null) { +// log.trace("found algorithm " + algorithm); +// transform.setAttribute("Algorithm", algorithm); +// } +// +// at.gv.egiz.slbinding.impl.TransformType t = (at.gv.egiz.slbinding.impl.TransformType) transformType; +// byte[] redirectedBytes = t.getRedirectedStream().toByteArray(); +// if (redirectedBytes != null && redirectedBytes.length > 0) { +// if (log.isTraceEnabled()) { +// StringBuilder sb = new StringBuilder(); +// sb.append("Trying to parse dsig:Transform:\n"); +// sb.append(new String(redirectedBytes, Charset.forName("UTF-8"))); +// log.trace(sb); +// } +// LSInput input = domImplLS.createLSInput(); +// input.setByteStream(new ByteArrayInputStream(redirectedBytes)); +// +// LSParser parser = domImplLS.createLSParser( +// DOMImplementationLS.MODE_SYNCHRONOUS, null); +// DOMConfiguration domConfig = parser.getDomConfig(); +// SimpleDOMErrorHandler errorHandler = new SimpleDOMErrorHandler(); +// domConfig.setParameter("error-handler", errorHandler); +// domConfig.setParameter("validate", Boolean.FALSE); +// +// try { +// Document redirectedDoc = parser.parse(input); +// Node redirected = transformsDoc.adoptNode(redirectedDoc.getDocumentElement()); +// transform.appendChild(redirected); +// +// //not supported by Xerces2.9.1 +//// Node redirected = parser.parseWithContext(input, transform, LSParser.ACTION_APPEND_AS_CHILDREN); +// +// } catch (DOMException e) { +// log.info("Failed to parse dsig:Transform.", e); +// throw new SLRequestException(3002); +// } catch (LSException e) { +// log.info("Failed to parse dsig:Transform.", e); +// throw new SLRequestException(3002); +// } +// } +// transforms.appendChild(transform); +// } +// +// //adopt ds:Transforms +// Node adoptedTransforms = ctx.getDocument().adoptNode(transforms); +// DOMCryptoContext context = new DOMCryptoContext(); +// +// // unmarshall ds:Transforms +// return new XSECTTransforms(context, adoptedTransforms); + + } + + /** + * Sets the mimeType and the description value + * for this DataObject. + * + * @param metaInfoType the sl:FinalMetaDataInfo + * + * @throws NullPointerException if metaInfoType is null + */ + private void setFinalDataMetaInfo(MetaInfoType metaInfoType) { + + this.mimeType = metaInfoType.getMimeType(); + this.description = metaInfoType.getDescription(); + + } + + /** + * Selects an appropriate transformation path (if present) from the given list + * of sl:TransformInfos, sets the corresponding final data meta info and + * returns the corresponding unmarshalled ds:Transforms. + * + * @param transformsInfos the sl:TransformInfos + * + * @return the unmarshalled ds:Transforms, or null if + * no transformation path has been selected. + * + * @throws SLRequestException if the given list ds:TransformsInfo contains + * an invalid ds:Transforms element, or no suitable transformation path + * can be found. + */ + private XSECTTransforms createTransformsAndSetFinalDataMetaInfo( + List transformsInfos) throws SLRequestException { + + TransformsInfoType preferredTransformsInfo = selectPreferredTransformsInfo(transformsInfos); + // try preferred transform + if (preferredTransformsInfo != null) { + + try { + XSECTTransforms transforms = createTransforms(preferredTransformsInfo); + setFinalDataMetaInfo(preferredTransformsInfo.getFinalDataMetaInfo()); + return transforms; + } catch (MarshalException e) { + + String mimeType = preferredTransformsInfo.getFinalDataMetaInfo().getMimeType(); + log.info("Failed to unmarshal preferred transformation path (MIME-Type=" + + mimeType + ").", e); + + } + + } + + // look for another suitable transformation path + for (TransformsInfoType transformsInfoType : transformsInfos) { + + try { + XSECTTransforms transforms = createTransforms(transformsInfoType); + setFinalDataMetaInfo(transformsInfoType.getFinalDataMetaInfo()); + return transforms; + } catch (MarshalException e) { + + String mimeType = transformsInfoType.getFinalDataMetaInfo().getMimeType(); + log.info("Failed to unmarshal transformation path (MIME-Type=" + + mimeType + ").", e); + } + + } + + // no suitable transformation path found + throw new SLRequestException(3003); + + } + + /** + * Create an XMLObject with the Base64 encoding of the given + * content. + * + * @param content + * the to-be Base64 encoded content + * @return an XMLObject with the Base64 encoded content + */ + private XMLObject createXMLObject(InputStream content) { + + Text textNode; + try { + textNode = at.gv.egiz.dom.DOMUtils.createBase64Text(content, ctx.getDocument()); + } catch (IOException e) { + log.error(e); + throw new SLRuntimeException(e); + } + + DOMStructure structure = new DOMStructure(textNode); + + String idValue = ctx.getIdValueFactory().createIdValue("Object"); + + return ctx.getSignatureFactory().newXMLObject(Collections.singletonList(structure), idValue, null, null); + + } + + /** + * Create an XMLObject with the given content node. + * + * @param content the content node + * + * @return an XMLObject with the given content + */ + private XMLObject createXMLObject(Node content) { + + String idValue = ctx.getIdValueFactory().createIdValue("Object"); + + List structures = Collections.singletonList(new DOMStructure(content)); + + return ctx.getSignatureFactory().newXMLObject(structures, idValue, null, null); + + } + + /** + * Sets the given xmlObject and creates and sets a corresponding + * Reference. + *

+ * A transform to Base64-decode the xmlObject's content is inserted at the top + * of to the optional transforms if given, or to a newly created + * Transforms element if transforms is + * null. + * + * @param xmlObject + * the XMLObject + * @param transforms + * an optional Transforms element (may be + * null) + * + * @throws SLCommandException + * if creating the Reference fails + * @throws NullPointerException + * if xmlObject is null + */ + private void setXMLObjectAndReferenceBase64(XMLObject xmlObject, XSECTTransforms transforms) throws SLCommandException { + + // create reference URI + // + // NOTE: the ds:Object can be referenced directly, as the Base64 transform + // operates on the text() of the input nodelist. + // + String referenceURI = "#" + xmlObject.getId(); + + // create Base64 Transform + Transform transform; + try { + transform = ctx.getSignatureFactory().newTransform(Transform.BASE64, (TransformParameterSpec) null); + } catch (NoSuchAlgorithmException e) { + // algorithm must be present + throw new SLRuntimeException(e); + } catch (InvalidAlgorithmParameterException e) { + // algorithm does not take parameters + throw new SLRuntimeException(e); + } + + if (transforms == null) { + transforms = new XSECTTransforms(Collections.singletonList(transform)); + } else { + transforms.insertTransform(transform); + } + + DigestMethod dm; + try { + dm = ctx.getAlgorithmMethodFactory().createDigestMethod(ctx); + } catch (NoSuchAlgorithmException e) { + log.error("Failed to get DigestMethod.", e); + throw new SLCommandException(4006); + } catch (InvalidAlgorithmParameterException e) { + log.error("Failed to get DigestMethod.", e); + throw new SLCommandException(4006); + } + String id = ctx.getIdValueFactory().createIdValue("Reference"); + + this.xmlObject = xmlObject; + this.reference = new XSECTReference(referenceURI, dm, transforms, null, id); + + } + + /** + * Sets the given xmlObject and creates and sets a corresponding + * Reference. + *

+ * A transform to select the xmlObject's content is inserted at the top of to + * the optional transforms if given, or to a newly created + * Transforms element if transforms is + * null. + *

+ * + * @param xmlObject + * the XMLObject + * @param transforms + * an optional Transforms element (may be + * null) + * + * @throws SLCommandException + * if creating the Reference fails + * @throws NullPointerException + * if xmlObject is null + */ + private void setXMLObjectAndReferenceXML(XMLObject xmlObject, XSECTTransforms transforms) throws SLCommandException { + + // create reference URI + String referenceURI = "#" + xmlObject.getId(); + + // create Transform to select ds:Object's children + Transform xpathTransform; + Transform c14nTransform; + try { + + XPathType xpath = new XPathType("id(\"" + xmlObject.getId() + "\")/node()", XPathType.Filter.INTERSECT); + List xpaths = Collections.singletonList(xpath); + XPathFilter2ParameterSpec params = new XPathFilter2ParameterSpec(xpaths); + + xpathTransform = ctx.getSignatureFactory().newTransform(Transform.XPATH2, params); + + // add exclusive canonicalization to avoid signing the namespace context of the ds:Object + c14nTransform = ctx.getSignatureFactory().newTransform(CanonicalizationMethod.EXCLUSIVE, (TransformParameterSpec) null); + + } catch (NoSuchAlgorithmException e) { + // algorithm must be present + throw new SLRuntimeException(e); + } catch (InvalidAlgorithmParameterException e) { + // params must be appropriate + throw new SLRuntimeException(e); + } + + if (transforms == null) { + List newTransfroms = new ArrayList(); + newTransfroms.add(xpathTransform); + newTransfroms.add(c14nTransform); + transforms = new XSECTTransforms(newTransfroms); + } else { + transforms.insertTransform(xpathTransform); + } + + DigestMethod dm; + try { + dm = ctx.getAlgorithmMethodFactory().createDigestMethod(ctx); + } catch (NoSuchAlgorithmException e) { + log.error("Failed to get DigestMethod.", e); + throw new SLCommandException(4006); + } catch (InvalidAlgorithmParameterException e) { + log.error("Failed to get DigestMethod.", e); + throw new SLCommandException(4006); + } + String id = ctx.getIdValueFactory().createIdValue("Reference"); + + this.xmlObject = xmlObject; + this.reference = new XSECTReference(referenceURI, dm, transforms, null, id); + + } + + /** + * Parses the given xmlContent and returns a corresponding + * document fragment. + * + *

+ * The to-be parsed content is surrounded by ... elements to + * allow for mixed (e.g. Text and Element) content in XMLContent. + *

+ * + * @param xmlContent + * the XMLContent to-be parsed + * + * @return a document fragment containing the parsed nodes + * + * @throws SLCommandException + * if parsing the given xmlContent fails + * + * @throws NullPointerException + * if xmlContent is null + */ + private DocumentFragment parseDataObject(XMLContentType xmlContent) throws SLCommandException { + + ByteArrayOutputStream redirectedStream = xmlContent.getRedirectedStream(); + + // Note: We can assume a fixed character encoding of UTF-8 for the + // content of the redirect stream as the content has already been parsed + // and serialized again to the redirect stream. + + List inputStreams = new ArrayList(); + try { + // dummy start element + inputStreams.add(new ByteArrayInputStream("".getBytes("UTF-8"))); + + // content + inputStreams.add(new ByteArrayInputStream(redirectedStream.toByteArray())); + + // dummy end element + inputStreams.add(new ByteArrayInputStream("".getBytes("UTF-8"))); + } catch (UnsupportedEncodingException e) { + throw new SLRuntimeException(e); + } + + SequenceInputStream inputStream = new SequenceInputStream(Collections.enumeration(inputStreams)); + + // parse DataObject + Document doc = parseDataObject(inputStream, "UTF-8"); + + Element documentElement = doc.getDocumentElement(); + + if (documentElement == null || + !"dummy".equals(documentElement.getLocalName())) { + log.info("Failed to parse DataObject XMLContent."); + throw new SLCommandException(4111); + } + + DocumentFragment fragment = doc.createDocumentFragment(); + while (documentElement.getFirstChild() != null) { + fragment.appendChild(documentElement.getFirstChild()); + } + + // log parsed document + if (log.isTraceEnabled()) { + + StringWriter writer = new StringWriter(); + + writer.write("DataObject:\n"); + + LSOutput output = domImplLS.createLSOutput(); + output.setCharacterStream(writer); + output.setEncoding("UTF-8"); + LSSerializer serializer = domImplLS.createLSSerializer(); + serializer.getDomConfig().setParameter("xml-declaration", Boolean.FALSE); + serializer.write(fragment, output); + + log.trace(writer.toString()); + } + + return fragment; + + } + + /** + * Parses the given inputStream using the given + * encoding and returns the parsed document. + * + * @param inputStream + * the to-be parsed input + * + * @param encoding + * the encoding to be used for parsing the given + * inputStream + * + * @return the parsed document + * + * @throws SLCommandException + * if parsing the inputStream fails. + * + * @throws NullPointerException + * if inputStram is null + */ + private Document parseDataObject(InputStream inputStream, String encoding) throws SLCommandException { + + LSInput input = domImplLS.createLSInput(); + input.setByteStream(inputStream); + + if (encoding != null) { + input.setEncoding(encoding); + } + + LSParser parser = domImplLS.createLSParser(DOMImplementationLS.MODE_SYNCHRONOUS, null); + DOMConfiguration domConfig = parser.getDomConfig(); + SimpleDOMErrorHandler errorHandler = new SimpleDOMErrorHandler(); + domConfig.setParameter("error-handler", errorHandler); + domConfig.setParameter("validate", Boolean.FALSE); + + Document doc; + try { + doc = parser.parse(input); + } catch (DOMException e) { + log.info("Existing XML document cannot be parsed.", e); + throw new SLCommandException(4111); + } catch (LSException e) { + log.info("Existing XML document cannot be parsed. ", e); + throw new SLCommandException(4111); + } + + if (errorHandler.hasErrors()) { + // log errors + if (log.isInfoEnabled()) { + List errorMessages = errorHandler.getErrorMessages(); + StringBuffer sb = new StringBuffer(); + for (String errorMessage : errorMessages) { + sb.append(" "); + sb.append(errorMessage); + } + log.info("Existing XML document cannot be parsed. " + sb.toString()); + } + throw new SLCommandException(4111); + } + + return doc; + + } + + +} diff --git a/bkucommon/src/main/java/at/gv/egiz/bku/slcommands/impl/xsect/Signature.java b/bkucommon/src/main/java/at/gv/egiz/bku/slcommands/impl/xsect/Signature.java index 8baa0137..9182e824 100644 --- a/bkucommon/src/main/java/at/gv/egiz/bku/slcommands/impl/xsect/Signature.java +++ b/bkucommon/src/main/java/at/gv/egiz/bku/slcommands/impl/xsect/Signature.java @@ -87,6 +87,8 @@ 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.marshal.NamespacePrefix; +import at.gv.egiz.marshal.NamespacePrefixMapperImpl; import at.gv.egiz.slbinding.impl.XMLContentType; import at.gv.egiz.stal.STAL; import at.gv.egiz.xades.QualifyingPropertiesException; @@ -99,6 +101,7 @@ import at.gv.egiz.xades.QualifyingPropertiesFactory; * @author mcentner */ public class Signature { + public static final String XMLDSIG_PREFIX = "dsig"; /** * Logging facility. @@ -407,7 +410,7 @@ public class Signature { signContext.setProperty("javax.xml.crypto.dsig.cacheReference", Boolean.TRUE); - signContext.putNamespacePrefix(XMLSignature.XMLNS, "dsig"); + signContext.putNamespacePrefix(XMLSignature.XMLNS,XMLDSIG_PREFIX); signContext.setURIDereferencer(new URIDereferncerAdapter(ctx.getDereferencerContext())); -- cgit v1.2.3