/*
* Copyright (c) 2007-2013, Oracle and/or its affiliates. All rights reserved.
* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
*/
/**
* 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 com.sun.org.apache.xml.internal.security.transforms.implementations;
import java.io.OutputStream;
import com.sun.org.apache.xml.internal.security.c14n.CanonicalizationException;
import com.sun.org.apache.xml.internal.security.c14n.implementations.Canonicalizer20010315ExclOmitComments;
import com.sun.org.apache.xml.internal.security.exceptions.XMLSecurityException;
import com.sun.org.apache.xml.internal.security.signature.XMLSignatureInput;
import com.sun.org.apache.xml.internal.security.transforms.Transform;
import com.sun.org.apache.xml.internal.security.transforms.TransformSpi;
import com.sun.org.apache.xml.internal.security.transforms.Transforms;
import com.sun.org.apache.xml.internal.security.transforms.params.InclusiveNamespaces;
import com.sun.org.apache.xml.internal.security.utils.XMLUtils;
import org.w3c.dom.Element;
/**
* Class TransformC14NExclusive
*
*/
public class TransformC14NExclusive extends TransformSpi {
/** Field implementedTransformURI */
public static final String implementedTransformURI =
Transforms.TRANSFORM_C14N_EXCL_OMIT_COMMENTS;
/**
* Method engineGetURI
*
* @inheritDoc
*/
protected String engineGetURI() {
return implementedTransformURI;
}
protected XMLSignatureInput enginePerformTransform(
XMLSignatureInput input, OutputStream os, Transform transformObject
) throws CanonicalizationException {
try {
String inclusiveNamespaces = null;
if (transformObject.length(
InclusiveNamespaces.ExclusiveCanonicalizationNamespace,
InclusiveNamespaces._TAG_EC_INCLUSIVENAMESPACES) == 1
) {
Element inclusiveElement =
XMLUtils.selectNode(
transformObject.getElement().getFirstChild(),
InclusiveNamespaces.ExclusiveCanonicalizationNamespace,
InclusiveNamespaces._TAG_EC_INCLUSIVENAMESPACES,
0
);
inclusiveNamespaces =
new InclusiveNamespaces(
inclusiveElement, transformObject.getBaseURI()).getInclusiveNamespaces();
}
Canonicalizer20010315ExclOmitComments c14n =
new Canonicalizer20010315ExclOmitComments();
if (os != null) {
c14n.setWriter(os);
}
byte[] result = c14n.engineCanonicalize(input, inclusiveNamespaces);
XMLSignatureInput output = new XMLSignatureInput(result);
if (os != null) {
output.setOutputStream(os);
}
return output;
} catch (XMLSecurityException ex) {
throw new CanonicalizationException("empty", ex);
}
}
}