/**
* 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.camel.component.xmlsecurity.util;
import java.util.HashSet;
import java.util.Set;
import javax.xml.crypto.dsig.CanonicalizationMethod;
import org.apache.camel.component.xmlsecurity.api.XmlSignatureChecker;
import org.apache.camel.component.xmlsecurity.api.XmlSignatureInvalidException;
/**
* Checks that root element local name is "Signature" and the root element
* namespace is "http://www.w3.org/2000/09/xmldsig#". If the checks fails then a
* {@link XmlSignatureInvalidException} is thrown.
*/
public class EnvelopingXmlSignatureChecker implements XmlSignatureChecker {
private static final Set<String> ALLOWED_TRANSFORM_ALGORITHMS = new HashSet<String>(4);
static {
ALLOWED_TRANSFORM_ALGORITHMS.add(CanonicalizationMethod.INCLUSIVE);
ALLOWED_TRANSFORM_ALGORITHMS.add(CanonicalizationMethod.INCLUSIVE_WITH_COMMENTS);
ALLOWED_TRANSFORM_ALGORITHMS.add(CanonicalizationMethod.EXCLUSIVE);
ALLOWED_TRANSFORM_ALGORITHMS.add(CanonicalizationMethod.EXCLUSIVE_WITH_COMMENTS);
}
@Override
public void checkBeforeCoreValidation(Input input) throws Exception {
if (!"Signature".equals(input.getMessageBodyDocument().getDocumentElement().getLocalName())) {
throw new XmlSignatureInvalidException(
"XML signature is not enveloping. Only enveloping XML signatures are allowed.");
}
}
}