diff options
Diffstat (limited to 'spss.server/src/at/gv/egovernment/moa/spss/api/xmlbind/ProfileParser.java')
-rw-r--r-- | spss.server/src/at/gv/egovernment/moa/spss/api/xmlbind/ProfileParser.java | 285 |
1 files changed, 285 insertions, 0 deletions
diff --git a/spss.server/src/at/gv/egovernment/moa/spss/api/xmlbind/ProfileParser.java b/spss.server/src/at/gv/egovernment/moa/spss/api/xmlbind/ProfileParser.java new file mode 100644 index 000000000..66c08e0ab --- /dev/null +++ b/spss.server/src/at/gv/egovernment/moa/spss/api/xmlbind/ProfileParser.java @@ -0,0 +1,285 @@ +package at.gv.egovernment.moa.spss.api.xmlbind; + +import java.io.IOException; +import java.io.InputStream; +import java.util.ArrayList; +import java.util.List; +import java.util.Map; + +import org.w3c.dom.Element; +import org.w3c.dom.traversal.NodeIterator; + +import at.gv.egovernment.moa.util.Base64Utils; +import at.gv.egovernment.moa.util.Constants; +import at.gv.egovernment.moa.util.DOMUtils; +import at.gv.egovernment.moa.util.XPathUtils; + +import at.gv.egovernment.moa.spss.MOAApplicationException; +import at.gv.egovernment.moa.spss.api.SPSSFactory; +import at.gv.egovernment.moa.spss.api.common.MetaInfo; +import at.gv.egovernment.moa.spss.api.common.XMLDataObjectAssociation; +import at.gv.egovernment.moa.spss.api.xmlsign.CreateSignatureEnvironmentProfile; +import at.gv.egovernment.moa.spss.api.xmlsign.CreateSignatureLocation; +import at.gv.egovernment.moa.spss.api.xmlsign.CreateTransformsInfo; +import at.gv.egovernment.moa.spss.api.xmlsign.CreateTransformsInfoProfile; +import at.gv.egovernment.moa.spss.api.xmlverify.SupplementProfile; +import at.gv.egovernment.moa.spss.api.xmlverify.TransformParameter; +import at.gv.egovernment.moa.spss.api.xmlverify.VerifyTransformsInfoProfile; + +/** + * Parse the various profile elements contained in the MOA web service requests + * and given as separate files in the MOA configuration. + * + * The profiles parsed must be schema valid according to the MOA XML schema. + * + * @author Patrick Peck + * @version $Id$ + */ +public class ProfileParser { + + // + // XPath expressions to select parts of the profiles + // + private static final String MOA = Constants.MOA_PREFIX + ":"; + private static final String DSIG = Constants.DSIG_PREFIX + ":"; + private static final String CREATE_TRANSFORMS_XPATH = + MOA + "CreateTransformsInfo/" + DSIG + "Transforms"; + private static final String FINAL_DATA_META_INFO_XPATH = + MOA + "CreateTransformsInfo/" + MOA + "FinalDataMetaInfo"; + private static final String CREATE_SIGNATURE_LOCATION_XPATH = + MOA + "CreateSignatureLocation"; + private static final String SUPPLEMENT_XPATH = MOA + "Supplement"; + private static final String VERIFY_TRANSFORMS_XPATH = DSIG + "Transforms"; + private static final String TRANSFORM_PARAMETER_XPATH = + MOA + "TransformParameter"; + private static final String TRANSFORM_PARAMETER_CONTENT_XPATH = + MOA + "Base64Content | " + MOA + "Hash"; + private static final String DIGEST_METHOD_XPATH = DSIG + "DigestMethod"; + private static final String DIGEST_VALUE_XPATH = DSIG + "DigestValue"; + + /** The factory used to create API objects. */ + private SPSSFactory factory = SPSSFactory.getInstance(); + + /** + * Parse a <code>CreateTransformsInfoProfile</code> DOM element. + * + * @param profileElem The <code>CreateTransformsInfoProfile</code> element + * to parse. + * @return The <code>CreateTransformsInfoProfile</code> API object containing + * the data from the <code>profileElem</code>. + * @throws MOAApplicationException An error occurred parsing the DOM element. + */ + public CreateTransformsInfoProfile parseCreateTransformsInfoProfile(Element profileElem) + throws MOAApplicationException { + CreateTransformsInfo createTransformsInfo = + parseCreateTransformsInfo(profileElem); + List supplements = parseSupplements(profileElem); + + return factory.createCreateTransformsInfoProfile( + createTransformsInfo, + supplements); + } + + /** + * Parse the <code>CreateTransformsInfo</code> DOM element contained in a + * <code>CreateTransformsInfoProfile</code>. + * + * @param profileElem The <code>CreateTransformsInfoProfile</code> DOM + * element containing the <code>CreateTransformsInfo</code>. + * @return The <code>CreateTransformsInfo</code> API object containinig the + * data from the <code>CreateTransformsInfo</code> DOM element. + * @throws MOAApplicationException An error occurred parsing the + * <code>CreateTransformsInfo</code> DOM element. + */ + private CreateTransformsInfo parseCreateTransformsInfo(Element profileElem) + throws MOAApplicationException { + + Element transformsElem = + (Element) XPathUtils.selectSingleNode( + profileElem, + CREATE_TRANSFORMS_XPATH); + Element metaInfoElem = + (Element) XPathUtils.selectSingleNode( + profileElem, + FINAL_DATA_META_INFO_XPATH); + MetaInfo finalDataMetaInfo; + List transforms; + + // parse the dsig:Transforms + if (transformsElem != null) { + TransformParser transformsParser = new TransformParser(); + transforms = transformsParser.parseTransforms(transformsElem); + } else { + transforms = null; + } + + // parse the meta info + finalDataMetaInfo = RequestParserUtils.parseMetaInfo(metaInfoElem); + + return factory.createCreateTransformsInfo(transforms, finalDataMetaInfo); + } + + /** + * Parse a <code>CreateSignatureEnvironmentProfile</code> DOM element. + * + * @param profileElem The <code>CreateSignatureEnvironmentProfile</code> + * DOM element to parse. + * @return The <code>CreateSignatureEnvironmentProfile</code> API object + * containing the data from the <code>profileElem</code>. + */ + public CreateSignatureEnvironmentProfile parseCreateSignatureEnvironmentProfile(Element profileElem) { + CreateSignatureLocation createSignatureLocation = + parseCreateSignatureLocation(profileElem); + List supplements = parseSupplements(profileElem); + + return factory.createCreateSignatureEnvironmentProfile( + createSignatureLocation, + supplements); + } + + /** + * Parse a <code>CreateSignatureLocation</code> DOM element contained in + * a <code>CreateSignatureEnvironmentProfile</code>. + * + * @param profileElem The <code>CreateSignatureEnvironmentProfile</code> DOM + * element containing the <code>CreateSignatureLocation</code>. + * @return The <code>CreateSignatureLocation</code> API object containing + * the data from the <code>CreateSignatureLocation</code> DOM element. + */ + private CreateSignatureLocation parseCreateSignatureLocation(Element profileElem) { + Element locationElem = + (Element) XPathUtils.selectSingleNode( + profileElem, + CREATE_SIGNATURE_LOCATION_XPATH); + String xPathExpression = DOMUtils.getText(locationElem); + Map namespaceDeclarations = DOMUtils.getNamespaceDeclarations(locationElem); + String indexStr = locationElem.getAttribute("Index"); + int index = Integer.parseInt(indexStr); + + return factory.createCreateSignatureLocation( + xPathExpression, + index, + namespaceDeclarations); + } + + /** + * Parse all <code>Supplement</code> DOM elements contained in a given + * parent DOM element. + * + * @param supplementsParentElem The DOM element being the parent of the + * <code>Supplement</code>s. + * @return A <code>List</code> of <code>Supplement</code> API objects + * containing the data from the <code>Supplement</code> DOM elements. + */ + private List parseSupplements(Element supplementsParentElem) { + List supplements = new ArrayList(); + NodeIterator supplementElems = + XPathUtils.selectNodeIterator(supplementsParentElem, SUPPLEMENT_XPATH); + Element supplementElem; + + while ((supplementElem = (Element) supplementElems.nextNode()) != null) { + XMLDataObjectAssociation supplement = + RequestParserUtils.parseXMLDataObjectAssociation(supplementElem); + supplements.add(supplement); + } + return supplements; + } + + /** + * Parse a <code>SupplementProfile</code> DOM element. + * + * @param profileElem The <code>SupplementProfile</code> DOM element to parse. + * @return The <code>SupplementProfile</code> API object containing the + * data from the <code>SupplementProfile</code> DOM element. + */ + public SupplementProfile parseSupplementProfile(Element profileElem) { + XMLDataObjectAssociation supplementProfile = + RequestParserUtils.parseXMLDataObjectAssociation(profileElem); + + return factory.createSupplementProfile(supplementProfile); + } + + /** + * Parse a <code>VerifyTransformsInfoProfile</code> DOM element. + * + * @param profileElem The <code>VerifyTransformsInfoProfile</code> DOM + * element to parse. + * @return A <code>VerifyTransformsInfoProfile</code> API object containing + * the information from the <code>VerifyTransformsInfoProfile</code> DOM + * element. + * @throws MOAApplicationException An error occurred parsing the + * <code>VerifyTransformsInfoProfile</code>. + */ + public VerifyTransformsInfoProfile parseVerifyTransformsInfoProfile(Element profileElem) + throws MOAApplicationException { + Element transformsElem = + (Element) XPathUtils.selectSingleNode( + profileElem, + VERIFY_TRANSFORMS_XPATH); + List transforms = null; + NodeIterator paramElems = + XPathUtils.selectNodeIterator(profileElem, TRANSFORM_PARAMETER_XPATH); + Element paramElem; + List transformParameters = new ArrayList(); + + // parse the dsig:Transforms + if (transformsElem != null) { + TransformParser transformsParser = new TransformParser(); + transforms = transformsParser.parseTransforms(transformsElem); + } + + // parse the TransformParameter elements + while ((paramElem = (Element) paramElems.nextNode()) != null) { + transformParameters.add(parseTransformParameter(paramElem)); + } + + return factory.createVerifyTransformsInfoProfile( + transforms, + transformParameters); + } + + /** + * Parse a <code>TransformParameter</code> DOM element. + * + * @param paramElem The <code>TransformParameter</code> DOM element to + * parse. + * @return The <code>TransformParameter</code> API object containing the + * information from the <code>TransformParameter</code> DOM element. + * @throws MOAApplicationException An error occurred parsing the + * <code>TransformParameter</code> DOM element. + */ + private TransformParameter parseTransformParameter(Element paramElem) + throws MOAApplicationException { + String uri = paramElem.getAttribute("URI"); + Element contentElem = + (Element) XPathUtils.selectSingleNode( + paramElem, + TRANSFORM_PARAMETER_CONTENT_XPATH); + + if (contentElem == null) { + return factory.createTransformParameter(uri); + } else if ("Base64Content".equals(contentElem.getLocalName())) { + String base64Str = DOMUtils.getText(contentElem); + InputStream binaryContent = Base64Utils.decodeToStream(base64Str, true); + + return factory.createTransformParameter(uri, binaryContent); + } else { // "Hash".equals(contentElem.getLocalName()) + String digestMethodStr = + XPathUtils.getElementValue(contentElem, DIGEST_METHOD_XPATH, ""); + String digestValueStr = + XPathUtils.getElementValue(contentElem, DIGEST_VALUE_XPATH, ""); + byte[] digestValue = null; + + try { + digestValue = Base64Utils.decode(digestValueStr, true); + } catch (IOException e) { + throw new MOAApplicationException("2270", null); + } + return factory.createTransformParameter( + uri, + digestMethodStr, + digestValue); + } + } + +} |