| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 org.apache.wss4j.dom.util; |
| |
| import java.util.ArrayList; |
| import java.util.LinkedHashSet; |
| import java.util.List; |
| import java.util.Set; |
| |
| import org.apache.wss4j.common.ext.WSSecurityException; |
| import org.apache.wss4j.dom.WSConstants; |
| import org.apache.wss4j.dom.WSDataRef; |
| import org.apache.wss4j.dom.WSDocInfo; |
| import org.apache.wss4j.dom.engine.WSSecurityEngineResult; |
| import org.w3c.dom.Element; |
| import org.w3c.dom.NamedNodeMap; |
| import org.w3c.dom.Node; |
| |
| /** |
| * WS-Security Utility methods. <p/> |
| */ |
| public final class SignatureUtils { |
| |
| private SignatureUtils() { |
| // Complete |
| } |
| |
| public static void verifySignedElement(Element elem, WSDocInfo wsDocInfo) |
| throws WSSecurityException { |
| verifySignedElement(elem, wsDocInfo.getResultsByTag(WSConstants.SIGN)); |
| } |
| |
| public static void verifySignedElement(Element elem, List<WSSecurityEngineResult> signedResults) |
| throws WSSecurityException { |
| if (signedResults != null) { |
| for (WSSecurityEngineResult signedResult : signedResults) { |
| @SuppressWarnings("unchecked") |
| List<WSDataRef> dataRefs = |
| (List<WSDataRef>)signedResult.get(WSSecurityEngineResult.TAG_DATA_REF_URIS); |
| if (dataRefs != null) { |
| for (WSDataRef dataRef : dataRefs) { |
| if (isElementOrAncestorSigned(elem, dataRef.getProtectedElement())) { |
| return; |
| } |
| } |
| } |
| } |
| } |
| |
| throw new WSSecurityException( |
| WSSecurityException.ErrorCode.FAILED_CHECK, "elementNotSigned", |
| new Object[] {elem}); |
| } |
| |
| /** |
| * Get the List of inclusive prefixes from the DOM Element argument |
| */ |
| public static List<String> getInclusivePrefixes(Element target, boolean excludeVisible) { |
| Set<String> result = new LinkedHashSet<>(); |
| Node parent = target; |
| while (parent.getParentNode() != null |
| && !(Node.DOCUMENT_NODE == parent.getParentNode().getNodeType())) { |
| parent = parent.getParentNode(); |
| NamedNodeMap attributes = parent.getAttributes(); |
| for (int i = 0; i < attributes.getLength(); i++) { |
| Node attribute = attributes.item(i); |
| if (WSConstants.XMLNS_NS.equals(attribute.getNamespaceURI())) { |
| if ("xmlns".equals(attribute.getNodeName())) { |
| result.add("#default"); |
| } else { |
| result.add(attribute.getLocalName()); |
| } |
| } |
| } |
| } |
| |
| if (excludeVisible) { |
| NamedNodeMap attributes = target.getAttributes(); |
| for (int i = 0; i < attributes.getLength(); i++) { |
| Node attribute = attributes.item(i); |
| if (WSConstants.XMLNS_NS.equals(attribute.getNamespaceURI())) { |
| if ("xmlns".equals(attribute.getNodeName())) { |
| result.remove("#default"); |
| } else { |
| result.remove(attribute.getLocalName()); |
| } |
| } |
| if (attribute.getPrefix() != null) { |
| result.remove(attribute.getPrefix()); |
| } |
| } |
| |
| if (target.getPrefix() == null) { |
| result.remove("#default"); |
| } else { |
| result.remove(target.getPrefix()); |
| } |
| } |
| |
| return new ArrayList<String>(result); |
| } |
| |
| /** |
| * Does the current element or some ancestor of it correspond to the known "signedElement"? |
| */ |
| private static boolean isElementOrAncestorSigned(Element elem, Element signedElement) |
| throws WSSecurityException { |
| final Element envelope = elem.getOwnerDocument().getDocumentElement(); |
| Node cur = elem; |
| while (!cur.isSameNode(envelope)) { |
| if (cur.getNodeType() == Node.ELEMENT_NODE && cur.equals(signedElement)) { |
| return true; |
| } |
| cur = cur.getParentNode(); |
| } |
| |
| return false; |
| } |
| |
| } |