com.sun.xml.wss.impl.c14n.ImageCanonicalizer Maven / Gradle / Ivy
/*
* Copyright (c) 2010, 2022 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Distribution License v. 1.0, which is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
/*
* $Id: ImageCanonicalizer.java,v 1.2 2010-10-21 15:37:19 snajper Exp $
* $Revision: 1.2 $
* $Date: 2010-10-21 15:37:19 $
*/
package com.sun.xml.wss.impl.c14n;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.logging.Level;
/**
* Section 4.2 on Image Media types in RFC 2046
* http://www.rfc-editor.org/rfc/rfc2046.txt
* does not specify any rules for image canonicalization.
*
* So assuming that this binary data need not be canonicalized.
*
* @author XWS-Security Team
*/
public class ImageCanonicalizer extends Canonicalizer {
public ImageCanonicalizer() {}
public ImageCanonicalizer(String charset) {
super(charset);
}
/*
* RFC 3851 says - http://www.rfc-archive.org/getrfc.php?rfc=3851
* Other than text types, most types
* have only one representation regardless of computing platform or
* environment which can be considered their canonical representation.
*
* So right now we are just serializing the attachment for gif data types.
*
*/
@Override
public byte[] canonicalize(byte[] input) {
return input;
}
@Override
public InputStream canonicalize(InputStream input, OutputStream outputStream)
throws javax.xml.crypto.dsig.TransformException {
try{
if(outputStream == null){
return input;
}else{
byte [] data = new byte[128];
while(true){
int len = input.read(data);
if(len <= 0)
break;
outputStream.write(data,0,len);
}
}
}catch(Exception ex){
log.log(Level.SEVERE, "WSS1001.error.canonicalizing.image",
new Object[] {ex.getMessage()});
throw new javax.xml.crypto.dsig.TransformException(ex.getMessage());
}
return null;
}
}