| J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2005 Sun Microsystems, Inc. All Rights Reserved. |
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 | * |
| 5 | * This code is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License version 2 only, as |
| 7 | * published by the Free Software Foundation. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun in the LICENSE file that accompanied this code. |
| 10 | * |
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 14 | * version 2 for more details (a copy is included in the LICENSE file that |
| 15 | * accompanied this code). |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License version |
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 20 | * |
| 21 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | /* |
| 26 | * $Id: DOMCanonicalXMLC14NMethod.java,v 1.24.4.1 2005/08/12 15:27:49 mullan Exp $ |
| 27 | */ |
| 28 | package org.jcp.xml.dsig.internal.dom; |
| 29 | |
| 30 | import javax.xml.crypto.*; |
| 31 | import javax.xml.crypto.dsig.*; |
| 32 | import javax.xml.crypto.dsig.spec.TransformParameterSpec; |
| 33 | |
| 34 | import java.security.InvalidAlgorithmParameterException; |
| 35 | |
| 36 | import com.sun.org.apache.xml.internal.security.c14n.Canonicalizer; |
| 37 | import com.sun.org.apache.xml.internal.security.c14n.InvalidCanonicalizerException; |
| 38 | |
| 39 | /** |
| 40 | * DOM-based implementation of CanonicalizationMethod for Canonical XML |
| 41 | * (with or without comments). Uses Apache XML-Sec Canonicalizer. |
| 42 | * |
| 43 | * @author Sean Mullan |
| 44 | */ |
| 45 | public final class DOMCanonicalXMLC14NMethod extends ApacheCanonicalizer { |
| 46 | |
| 47 | public void init(TransformParameterSpec params) |
| 48 | throws InvalidAlgorithmParameterException { |
| 49 | if (params != null) { |
| 50 | throw new InvalidAlgorithmParameterException("no parameters " + |
| 51 | "should be specified for Canonical XML C14N algorithm"); |
| 52 | } |
| 53 | } |
| 54 | |
| 55 | public Data transform(Data data, XMLCryptoContext xc) |
| 56 | throws TransformException { |
| 57 | |
| 58 | // ignore comments if dereferencing same-document URI that requires |
| 59 | // you to omit comments, even if the Transform says otherwise - |
| 60 | // this is to be compliant with section 4.3.3.3 of W3C Rec. |
| 61 | if (data instanceof DOMSubTreeData) { |
| 62 | DOMSubTreeData subTree = (DOMSubTreeData) data; |
| 63 | if (subTree.excludeComments()) { |
| 64 | try { |
| 65 | apacheCanonicalizer = Canonicalizer.getInstance |
| 66 | (CanonicalizationMethod.INCLUSIVE); |
| 67 | } catch (InvalidCanonicalizerException ice) { |
| 68 | throw new TransformException |
| 69 | ("Couldn't find Canonicalizer for: " + |
| 70 | CanonicalizationMethod.INCLUSIVE + ": " + |
| 71 | ice.getMessage(), ice); |
| 72 | } |
| 73 | } |
| 74 | } |
| 75 | |
| 76 | return canonicalize(data, xc); |
| 77 | } |
| 78 | } |