| /** |
| * 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.resourceResolvers; |
| |
| import java.io.InputStream; |
| |
| import javax.xml.namespace.QName; |
| import javax.xml.stream.events.Attribute; |
| |
| import org.apache.xml.security.exceptions.XMLSecurityException; |
| import org.apache.xml.security.stax.ext.ResourceResolver; |
| import org.apache.xml.security.stax.ext.ResourceResolverLookup; |
| import org.apache.xml.security.stax.ext.XMLSecurityConstants; |
| import org.apache.xml.security.stax.ext.XMLSecurityUtils; |
| import org.apache.xml.security.stax.ext.stax.XMLSecStartElement; |
| |
| /** |
| * Resolver for references in the same document. |
| * |
| */ |
| public class ResolverSameDocument implements ResourceResolver, ResourceResolverLookup { |
| |
| private String id; |
| private boolean firstElementOccured = false; |
| |
| public ResolverSameDocument() { |
| } |
| |
| public ResolverSameDocument(String uri) { |
| this.id = XMLSecurityUtils.dropReferenceMarker(uri); |
| } |
| |
| public String getId() { |
| return id; |
| } |
| |
| @Override |
| public ResourceResolverLookup canResolve(String uri, String baseURI) { |
| if (uri != null && (uri.isEmpty() || uri.charAt(0) == '#')) { |
| if (uri.startsWith("#xpointer")) { |
| return null; |
| } |
| return this; |
| } |
| return null; |
| } |
| |
| @Override |
| public ResourceResolver newInstance(String uri, String baseURI) { |
| return new ResolverSameDocument(uri); |
| } |
| |
| @Override |
| public boolean isSameDocumentReference() { |
| return true; |
| } |
| |
| @Override |
| public boolean matches(XMLSecStartElement xmlSecStartElement) { |
| return this.matches(xmlSecStartElement, XMLSecurityConstants.ATT_NULL_Id); |
| } |
| |
| public boolean matches(XMLSecStartElement xmlSecStartElement, QName idAttributeNS) { |
| if (id.isEmpty()) { |
| if (firstElementOccured) { |
| return false; |
| } |
| firstElementOccured = true; |
| return true; |
| } else { |
| Attribute attribute = xmlSecStartElement.getAttributeByName(idAttributeNS); |
| if (attribute != null && attribute.getValue().equals(id)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| @Override |
| public InputStream getInputStreamFromExternalReference() throws XMLSecurityException { |
| return null; |
| } |
| } |