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/* ====================================================================
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.poi.poifs.crypt.dsig;
import static org.apache.poi.poifs.crypt.dsig.facets.SignatureFacet.XML_DIGSIG_NS;
import static org.apache.poi.poifs.crypt.dsig.facets.SignatureFacet.XML_NS;
import java.util.Arrays;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import java.util.function.Consumer;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.w3c.dom.events.EventListener;
import org.w3c.dom.events.EventTarget;
import org.w3c.dom.traversal.DocumentTraversal;
import org.w3c.dom.traversal.NodeFilter;
import org.w3c.dom.traversal.NodeIterator;
/**
* This listener class is used, to modify the to be digested xml document,
* e.g. to register id attributes or set prefixes for registered namespaces
*/
public class SignatureMarshalDefaultListener implements SignatureMarshalListener {
private static final String OBJECT_TAG = "Object";
private static final Set IGNORE_NS = new HashSet<>(Arrays.asList(null, XML_NS, XML_DIGSIG_NS));
@Override
public void handleElement(SignatureInfo signatureInfo, Document doc, EventTarget target, EventListener parentListener) {
// see POI #63712 : because of Santuario change r1853805 in XmlSec 2.1.3,
// we have to deal with the whole document now
final DocumentTraversal traversal = (DocumentTraversal) doc;
final Map prefixCfg = signatureInfo.getSignatureConfig().getNamespacePrefixes();
final Map prefixUsed = new HashMap<>();
forEachElement(doc.getElementsByTagName(OBJECT_TAG), (o) -> {
forEachElement(o.getChildNodes(), (c) -> {
getAllNamespaces(traversal, c, prefixCfg, prefixUsed);
prefixUsed.forEach((ns, prefix) -> c.setAttributeNS(XML_NS, "xmlns:"+prefix, ns));
});
});
}
private static void forEachElement(NodeList nl, Consumer consumer) {
int len = nl.getLength();
for(int i=0; i prefixCfg, Map prefixUsed) {
prefixUsed.clear();
final NodeIterator iter = traversal.createNodeIterator(objNode, NodeFilter.SHOW_ELEMENT, null, false);
try {
for (Element node; (node = (Element)iter.nextNode()) != null; ) {
setPrefix(node, prefixCfg, prefixUsed);
NamedNodeMap nnm = node.getAttributes();
final int nnmLen = nnm.getLength();
for (int j=0; j prefixCfg, Map prefixUsed) {
String ns = node.getNamespaceURI();
String prefix = prefixCfg.get(ns);
if (!IGNORE_NS.contains(prefix)) {
node.setPrefix(prefix);
prefixUsed.put(ns, prefix);
}
}
}