| /* |
| * Copyright 2005 Sun Microsystems, Inc. All Rights Reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Sun designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Sun in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| * CA 95054 USA or visit www.sun.com if you need additional information or |
| * have any questions. |
| */ |
| /* |
| * $Id: DOMCanonicalXMLC14NMethod.java,v 1.24.4.1 2005/08/12 15:27:49 mullan Exp $ |
| */ |
| package org.jcp.xml.dsig.internal.dom; |
| |
| import javax.xml.crypto.*; |
| import javax.xml.crypto.dsig.*; |
| import javax.xml.crypto.dsig.spec.TransformParameterSpec; |
| |
| import java.security.InvalidAlgorithmParameterException; |
| |
| import com.sun.org.apache.xml.internal.security.c14n.Canonicalizer; |
| import com.sun.org.apache.xml.internal.security.c14n.InvalidCanonicalizerException; |
| |
| /** |
| * DOM-based implementation of CanonicalizationMethod for Canonical XML |
| * (with or without comments). Uses Apache XML-Sec Canonicalizer. |
| * |
| * @author Sean Mullan |
| */ |
| public final class DOMCanonicalXMLC14NMethod extends ApacheCanonicalizer { |
| |
| public void init(TransformParameterSpec params) |
| throws InvalidAlgorithmParameterException { |
| if (params != null) { |
| throw new InvalidAlgorithmParameterException("no parameters " + |
| "should be specified for Canonical XML C14N algorithm"); |
| } |
| } |
| |
| public Data transform(Data data, XMLCryptoContext xc) |
| throws TransformException { |
| |
| // ignore comments if dereferencing same-document URI that requires |
| // you to omit comments, even if the Transform says otherwise - |
| // this is to be compliant with section 4.3.3.3 of W3C Rec. |
| if (data instanceof DOMSubTreeData) { |
| DOMSubTreeData subTree = (DOMSubTreeData) data; |
| if (subTree.excludeComments()) { |
| try { |
| apacheCanonicalizer = Canonicalizer.getInstance |
| (CanonicalizationMethod.INCLUSIVE); |
| } catch (InvalidCanonicalizerException ice) { |
| throw new TransformException |
| ("Couldn't find Canonicalizer for: " + |
| CanonicalizationMethod.INCLUSIVE + ": " + |
| ice.getMessage(), ice); |
| } |
| } |
| } |
| |
| return canonicalize(data, xc); |
| } |
| } |