| /** |
| * 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.xml.security.stax.impl.transformer.canonicalizer; |
| |
| import org.apache.xml.security.stax.ext.stax.XMLSecAttribute; |
| import org.apache.xml.security.stax.ext.stax.XMLSecEvent; |
| import org.apache.xml.security.stax.ext.stax.XMLSecStartElement; |
| |
| import javax.xml.namespace.QName; |
| import java.util.*; |
| |
| /** |
| */ |
| public class Canonicalizer11 extends CanonicalizerBase { |
| public Canonicalizer11(boolean includeComments) { |
| super(includeComments); |
| } |
| |
| @Override |
| protected List<XMLSecAttribute> getInitialUtilizedAttributes(final XMLSecStartElement xmlSecStartElement, |
| final C14NStack<XMLSecEvent> outputStack) { |
| |
| List<XMLSecAttribute> utilizedAttributes = Collections.emptyList(); |
| |
| List<XMLSecAttribute> visibleAttributes = new ArrayList<>(); |
| xmlSecStartElement.getAttributesFromCurrentScope(visibleAttributes); |
| for (int i = 0; i < visibleAttributes.size(); i++) { |
| XMLSecAttribute comparableAttribute = visibleAttributes.get(i); |
| final QName comparableAttributeName = comparableAttribute.getName(); |
| //xml:id attributes must be handled like other attributes: emit but dont inherit |
| if (!XML.equals(comparableAttributeName.getPrefix())) { |
| continue; |
| } |
| if ("id".equals(comparableAttributeName.getLocalPart()) |
| || "base".equals(comparableAttributeName.getLocalPart())) { |
| continue; |
| } |
| if (outputStack.containsOnStack(comparableAttribute) != null) { |
| continue; |
| } |
| if (utilizedAttributes == Collections.<XMLSecAttribute>emptyList()) { |
| utilizedAttributes = new ArrayList<>(2); |
| } |
| utilizedAttributes.add(comparableAttribute); |
| outputStack.peek().add(comparableAttribute); |
| } |
| |
| List<XMLSecAttribute> elementAttributes = xmlSecStartElement.getOnElementDeclaredAttributes(); |
| for (int i = 0; i < elementAttributes.size(); i++) { |
| XMLSecAttribute comparableAttribute = elementAttributes.get(i); |
| //attributes with xml prefix are already processed in the for loop above |
| //xml:id attributes must be handled like other attributes: emit but dont inherit |
| final QName attributeName = comparableAttribute.getName(); |
| if (XML.equals(attributeName.getPrefix())) { |
| continue; |
| } |
| if (utilizedAttributes == Collections.<XMLSecAttribute>emptyList()) { |
| utilizedAttributes = new ArrayList<>(2); |
| } |
| utilizedAttributes.add(comparableAttribute); |
| } |
| |
| return utilizedAttributes; |
| } |
| } |