1 /*
2  * reserved comment block
3  * DO NOT REMOVE OR ALTER!
4  */
5 /**
6  * Licensed to the Apache Software Foundation (ASF) under one
7  * or more contributor license agreements. See the NOTICE file
8  * distributed with this work for additional information
9  * regarding copyright ownership. The ASF licenses this file
10  * to you under the Apache License, Version 2.0 (the
11  * "License"); you may not use this file except in compliance
12  * with the License. You may obtain a copy of the License at
13  *
14  * http://www.apache.org/licenses/LICENSE-2.0
15  *
16  * Unless required by applicable law or agreed to in writing,
17  * software distributed under the License is distributed on an
18  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
19  * KIND, either express or implied. See the License for the
20  * specific language governing permissions and limitations
21  * under the License.
22  */
23 package com.sun.org.apache.xml.internal.security.transforms.implementations;
24 
25 import java.io.OutputStream;
26 
27 import com.sun.org.apache.xml.internal.security.c14n.CanonicalizationException;
28 import com.sun.org.apache.xml.internal.security.c14n.implementations.Canonicalizer20010315OmitComments;
29 import com.sun.org.apache.xml.internal.security.signature.XMLSignatureInput;
30 import com.sun.org.apache.xml.internal.security.transforms.Transform;
31 import com.sun.org.apache.xml.internal.security.transforms.TransformSpi;
32 import com.sun.org.apache.xml.internal.security.transforms.Transforms;
33 
34 /**
35  * Implements the {@code http://www.w3.org/TR/2001/REC-xml-c14n-20010315}
36  * transform.
37  *
38  */
39 public class TransformC14N extends TransformSpi {
40 
41     /** Field implementedTransformURI */
42     public static final String implementedTransformURI =
43         Transforms.TRANSFORM_C14N_OMIT_COMMENTS;
44 
45     /**
46      * {@inheritDoc}
47      */
engineGetURI()48     protected String engineGetURI() {
49         return TransformC14N.implementedTransformURI;
50     }
51 
enginePerformTransform( XMLSignatureInput input, OutputStream os, Transform transformObject )52     protected XMLSignatureInput enginePerformTransform(
53         XMLSignatureInput input, OutputStream os, Transform transformObject
54     ) throws CanonicalizationException {
55         Canonicalizer20010315OmitComments c14n = new Canonicalizer20010315OmitComments();
56         c14n.setSecureValidation(secureValidation);
57         if (os != null) {
58             c14n.setWriter(os);
59         }
60         byte[] result = null;
61         result = c14n.engineCanonicalize(input);
62         XMLSignatureInput output = new XMLSignatureInput(result);
63         output.setSecureValidation(secureValidation);
64         if (os != null) {
65             output.setOutputStream(os);
66         }
67         return output;
68     }
69 }
70