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: DOMCryptoBinary.java,v 1.14 2005/05/12 19:28:29 mullan Exp $ |
| 27 | */ |
| 28 | package org.jcp.xml.dsig.internal.dom; |
| 29 | |
| 30 | import java.math.BigInteger; |
| 31 | import javax.xml.crypto.*; |
| 32 | import javax.xml.crypto.dom.DOMCryptoContext; |
| 33 | import javax.xml.crypto.dsig.*; |
| 34 | import org.w3c.dom.Node; |
| 35 | import org.w3c.dom.Text; |
| 36 | |
| 37 | import com.sun.org.apache.xml.internal.security.utils.Base64; |
| 38 | |
| 39 | /** |
| 40 | * A DOM-based representation of the XML <code>CryptoBinary</code> simple type |
| 41 | * as defined in the W3C specification for XML-Signature Syntax and Processing. |
| 42 | * The XML Schema Definition is defined as: |
| 43 | * |
| 44 | * <xmp> |
| 45 | * <simpleType name="CryptoBinary"> |
| 46 | * <restriction base = "base64Binary"> |
| 47 | * </restriction> |
| 48 | * </simpleType> |
| 49 | * </xmp> |
| 50 | * |
| 51 | * @author Sean Mullan |
| 52 | */ |
| 53 | public final class DOMCryptoBinary extends DOMStructure { |
| 54 | |
| 55 | private final BigInteger bigNum; |
| 56 | private final String value; |
| 57 | |
| 58 | /** |
| 59 | * Create a <code>DOMCryptoBinary</code> instance from the specified |
| 60 | * <code>BigInteger</code> |
| 61 | * |
| 62 | * @param bigNum the arbitrary-length integer |
| 63 | * @throws NullPointerException if <code>bigNum</code> is <code>null</code> |
| 64 | */ |
| 65 | public DOMCryptoBinary(BigInteger bigNum) { |
| 66 | if (bigNum == null) { |
| 67 | throw new NullPointerException("bigNum is null"); |
| 68 | } |
| 69 | this.bigNum = bigNum; |
| 70 | // convert to bitstring |
| 71 | value = Base64.encode(bigNum); |
| 72 | } |
| 73 | |
| 74 | /** |
| 75 | * Creates a <code>DOMCryptoBinary</code> from a node. |
| 76 | * |
| 77 | * @param cbNode a CryptoBinary text node |
| 78 | * @throws MarshalException if value cannot be decoded (invalid format) |
| 79 | */ |
| 80 | public DOMCryptoBinary(Node cbNode) throws MarshalException { |
| 81 | value = cbNode.getNodeValue(); |
| 82 | try { |
| 83 | bigNum = Base64.decodeBigIntegerFromText((Text) cbNode); |
| 84 | } catch (Exception ex) { |
| 85 | throw new MarshalException(ex); |
| 86 | } |
| 87 | } |
| 88 | |
| 89 | /** |
| 90 | * Returns the <code>BigInteger</code> that this object contains. |
| 91 | * |
| 92 | * @return the <code>BigInteger</code> that this object contains |
| 93 | */ |
| 94 | public BigInteger getBigNum() { |
| 95 | return bigNum; |
| 96 | } |
| 97 | |
| 98 | public void marshal(Node parent, String prefix, DOMCryptoContext context) |
| 99 | throws MarshalException { |
| 100 | parent.appendChild |
| 101 | (DOMUtils.getOwnerDocument(parent).createTextNode(value)); |
| 102 | } |
| 103 | } |