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Diffstat (limited to 'spss/server/serverlib/src/main/java/at/gv/egovernment/moa/spss/api/xmlbind/CreateCMSSignatureRequestParser.java')
-rw-r--r-- | spss/server/serverlib/src/main/java/at/gv/egovernment/moa/spss/api/xmlbind/CreateCMSSignatureRequestParser.java | 247 |
1 files changed, 247 insertions, 0 deletions
diff --git a/spss/server/serverlib/src/main/java/at/gv/egovernment/moa/spss/api/xmlbind/CreateCMSSignatureRequestParser.java b/spss/server/serverlib/src/main/java/at/gv/egovernment/moa/spss/api/xmlbind/CreateCMSSignatureRequestParser.java new file mode 100644 index 000000000..737915ecd --- /dev/null +++ b/spss/server/serverlib/src/main/java/at/gv/egovernment/moa/spss/api/xmlbind/CreateCMSSignatureRequestParser.java @@ -0,0 +1,247 @@ +/* + * Copyright 2003 Federal Chancellery Austria + * MOA-SPSS has been developed in a cooperation between BRZ, the Federal + * Chancellery Austria - ICT staff unit, and Graz University of Technology. + * + * Licensed under the EUPL, Version 1.1 or - as soon they will be approved by + * the European Commission - subsequent versions of the EUPL (the "Licence"); + * You may not use this work except in compliance with the Licence. + * You may obtain a copy of the Licence at: + * http://www.osor.eu/eupl/ + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the Licence is distributed on an "AS IS" basis, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the Licence for the specific language governing permissions and + * limitations under the Licence. + * + * This product combines work with different licenses. See the "NOTICE" text + * file for details on the various modules and licenses. + * The "NOTICE" text file is part of the distribution. Any derivative works + * that you distribute must include a readable copy of the "NOTICE" text file. + */ + + +package at.gv.egovernment.moa.spss.api.xmlbind; + +import java.io.InputStream; +import java.util.ArrayList; +import java.util.List; + +import org.w3c.dom.Element; +import org.w3c.dom.traversal.NodeIterator; + +import at.gv.egovernment.moa.spss.MOAApplicationException; +import at.gv.egovernment.moa.spss.api.SPSSFactory; +import at.gv.egovernment.moa.spss.api.cmssign.CreateCMSSignatureRequest; +import at.gv.egovernment.moa.spss.api.cmssign.DataObjectInfo; +import at.gv.egovernment.moa.spss.api.cmssign.SingleSignatureInfo; +import at.gv.egovernment.moa.spss.api.cmsverify.CMSContent; +import at.gv.egovernment.moa.spss.api.cmsverify.CMSDataObject; +import at.gv.egovernment.moa.spss.api.common.Content; +import at.gv.egovernment.moa.spss.api.common.MetaInfo; +import at.gv.egovernment.moa.util.Base64Utils; +import at.gv.egovernment.moa.util.BoolUtils; +import at.gv.egovernment.moa.util.Constants; +import at.gv.egovernment.moa.util.DOMUtils; +import at.gv.egovernment.moa.util.XPathUtils; + +/** + * A parser to parse <code>CreateCMSSignatureRequest</code> DOM trees into + * <code>CreateCMSSignatureRequest</code> API objects. + * + * @author Patrick Peck + * @version $Id$ + */ +public class CreateCMSSignatureRequestParser { + + // + // XPath expresssions to select elements in the CreateCMSSignatureRequest + // + private static final String MOA = Constants.MOA_PREFIX + ":"; + private static final String KEY_IDENTIFIER_XPATH = + "/" + MOA + "CreateCMSSignatureRequest/" + MOA + "KeyIdentifier"; + private static final String SINGLE_SIGNATURE_INFO_XPATH = + "/" + MOA + "CreateCMSSignatureRequest/" + MOA + "SingleSignatureInfo"; + private static final String DATA_OBJECT_INFO_XPATH = MOA + "DataObjectInfo"; + private static final String DATA_OBJECT_XPATH = MOA + "DataObject"; + + private static final String SL_CONFORM_ATTR_NAME = "SecurityLayerConformity"; + + private static final String META_INFO_XPATH = MOA + "MetaInfo"; + private static final String CONTENT_XPATH = MOA + "Content"; + private static final String BASE64_CONTENT_XPATH = MOA + "Base64Content"; + + + /** The factory to create API objects. */ + private SPSSFactory factory; + + /** + * Create a new <code>CreateCMSSignatureRequestParser</code>. + */ + public CreateCMSSignatureRequestParser() { + this.factory = SPSSFactory.getInstance(); + } + + /** + * Parse a <code>CreateCMSSignatureRequest</code> DOM element, as defined + * by the MOA schema. + * + * @param requestElem The <code>CreateCMSSignatureRequest</code> to parse. The + * request must have been successfully parsed against the schema for this + * method to succeed. + * @return A <code>CreateCMSSignatureRequest</code> API object containing + * the data from the DOM element. + * @throws MOAApplicationException An error occurred parsing the request. + */ + public CreateCMSSignatureRequest parse(Element requestElem) + throws MOAApplicationException { + + List singleSignatureInfos = parseSingleSignatureInfos(requestElem); + String keyIdentifier = + XPathUtils.getElementValue(requestElem, KEY_IDENTIFIER_XPATH, null); + + return factory.createCreateCMSSignatureRequest( + keyIdentifier, + singleSignatureInfos); + } + + /** + * Parse all <code>SingleSignatureInfo</code> elements of the + * <code>CreateCMSSignatureRequest</code>. + * + * @param requestElem The <code>CreateCMSSignatureRequest</code> to parse. + * @return A <code>List</code> of <code>SingleSignatureInfo</code> API + * objects. + * @throws MOAApplicationException An error occurred parsing on of the + * <code>SingleSignatureInfo</code> elements. + */ + private List parseSingleSignatureInfos(Element requestElem) + throws MOAApplicationException { + + List singleSignatureInfos = new ArrayList(); + NodeIterator sigInfoElems = + XPathUtils.selectNodeIterator(requestElem, SINGLE_SIGNATURE_INFO_XPATH); + Element sigInfoElem; + + while ((sigInfoElem = (Element) sigInfoElems.nextNode()) != null) { + singleSignatureInfos.add(parseSingleSignatureInfo(sigInfoElem)); + } + + return singleSignatureInfos; + } + + /** + * Parse a <code>SingleSignatureInfo</code> DOM element. + * + * @param sigInfoElem The <code>SingleSignatureInfo</code> DOM element to + * parse. + * @return A <code>SingleSignatureInfo</code> API object containing the + * information of <code>sigInfoElem</code>. + * @throws MOAApplicationException An error occurred parsing the + * <code>SingleSignatureInfo</code>. + */ + private SingleSignatureInfo parseSingleSignatureInfo(Element sigInfoElem) + throws MOAApplicationException { + + DataObjectInfo dataObjectInfo = parseDataObjectInfo(sigInfoElem); + boolean securityLayerConform; + + if (sigInfoElem.hasAttribute(SL_CONFORM_ATTR_NAME)) { + securityLayerConform = + BoolUtils.valueOf(sigInfoElem.getAttribute(SL_CONFORM_ATTR_NAME)); + } else { + securityLayerConform = true; + } + + return factory.createSingleSignatureInfoCMS( + dataObjectInfo, + securityLayerConform); + } + + /** + * Parse the <code>DataObjectInfo</code> DOM elements contained in the given + * <code>SingleSignatureInfo</code> DOM element. + * + * @param sigInfoElem The <code>SingleSignatureInfo</code> DOM element + * whose <code>DataObjectInfo</code>s to parse. + * @return A <code>List</code> of <code>DataObjectInfo</code> API objects + * containing the data from the <code>DataObjectInfo</code> DOM elements. + * @throws MOAApplicationException An error occurred parsing one of the + * <code>DataObjectInfo</code>s. + */ + private DataObjectInfo parseDataObjectInfo(Element sigInfoElem) + throws MOAApplicationException { + + Element dataObjInfoElem = (Element)XPathUtils.selectSingleNode(sigInfoElem, DATA_OBJECT_INFO_XPATH); + + String structure = dataObjInfoElem.getAttribute("Structure"); + Element dataObjectElem = + (Element) XPathUtils.selectSingleNode(dataObjInfoElem, DATA_OBJECT_XPATH); + + CMSDataObject dataObject = parseDataObject(dataObjectElem); + + return factory.createDataObjectInfo( + structure, + dataObject); + + } + + + + + + /** + * Parse a the <code>DataObject</code> DOM element contained in a given + * <code>CreateCMSSignatureRequest</code> DOM element. + * + * @param requestElem The DataObject DOM element of the <code>VerifyCMSSignatureRequest</code> + * to parse. + * @return The <code>CMSDataObject</code> API object containing the data + * from the <code>DataObject</code> DOM element. + */ + private CMSDataObject parseDataObject(Element dataObjectElem) { + + if (dataObjectElem != null) { + Element metaInfoElem = (Element) XPathUtils.selectSingleNode(dataObjectElem, META_INFO_XPATH); + MetaInfo metaInfo = null; + Element contentElem = (Element) XPathUtils.selectSingleNode(dataObjectElem, CONTENT_XPATH); + CMSContent content = parseContent(contentElem); + + if (metaInfoElem != null) { + metaInfo = RequestParserUtils.parseMetaInfo(metaInfoElem); + } + + return factory.createCMSDataObject(metaInfo, content); + } + else { + return null; + } + } + + + + /** + * Parse the content contained in a <code>CMSContentBaseType</code> kind of + * DOM element. + * + * @param contentElem The <code>CMSContentBaseType</code> kind of element to + * parse. + * @return A <code>CMSDataObject</code> API object containing the data + * from the given DOM element. + */ + private CMSContent parseContent(Element contentElem) { + Element base64ContentElem = + (Element) XPathUtils.selectSingleNode(contentElem, BASE64_CONTENT_XPATH); + + if (base64ContentElem != null) { + String base64Str = DOMUtils.getText(base64ContentElem); + InputStream binaryContent = Base64Utils.decodeToStream(base64Str, true); + return factory.createCMSContent(binaryContent); + } else { + return factory.createCMSContent( + contentElem.getAttribute("Reference")); + } + } + +}
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