/*
* Copyright (c) 2001-2007 Sun Microsystems, Inc. All rights reserved.
*
* The Sun Project JXTA(TM) Software License
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* 3. The end-user documentation included with the redistribution, if any, must
* include the following acknowledgment: "This product includes software
* developed by Sun Microsystems, Inc. for JXTA(TM) technology."
* Alternately, this acknowledgment may appear in the software itself, if
* and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Sun", "Sun Microsystems, Inc.", "JXTA" and "Project JXTA" must
* not be used to endorse or promote products derived from this software
* without prior written permission. For written permission, please contact
* Project JXTA at http://www.jxta.org.
*
* 5. Products derived from this software may not be called "JXTA", nor may
* "JXTA" appear in their name, without prior written permission of Sun.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SUN
* MICROSYSTEMS OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* JXTA is a registered trademark of Sun Microsystems, Inc. in the United
* States and other countries.
*
* Please see the license information page at :
* <http://www.jxta.org/project/www/license.html> for instructions on use of
* the license in source files.
*
* ====================================================================
*
* This software consists of voluntary contributions made by many individuals
* on behalf of Project JXTA. For more information on Project JXTA, please see
* http://www.jxta.org.
*
* This license is based on the BSD license adopted by the Apache Foundation.
*/
package net.jxta.document;
import java.net.URISyntaxException;
import net.jxta.peer.PeerID;
import net.jxta.id.IDFactory;
import net.jxta.impl.util.BASE64InputStream;
import net.jxta.impl.util.BASE64OutputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.Reader;
import java.io.StringReader;
import java.io.StringWriter;
import java.net.URI;
import java.lang.reflect.UndeclaredThrowableException;
import java.util.Enumeration;
/**
* The XMLSignatureInfo element for signed advertisements
*/
public class XMLSignatureInfo {
private PeerID peerID = null;
private byte[] digest = null;
private String keyalgorithm = null;
private String signaturealgorithm = null;
private byte[] encodedkey = null;
private boolean includePublicKey = false;
private boolean includePeerID = false;
/**
* The XMLSignatureInfo element for an outgoing adv
* @param digest
* @param peerID
* @param keyalgorithm
* @param encodedkey
* @param includePublicKey
* @param includePeerID
*/
public XMLSignatureInfo(byte[] digest, PeerID peerID, String keyalgorithm, byte[] encodedkey, String signaturealgorithm, boolean includePublicKey, boolean includePeerID) {
this.peerID = peerID;
this.digest = digest;
this.keyalgorithm = keyalgorithm;
this.encodedkey = encodedkey;
this.signaturealgorithm = signaturealgorithm;
this.includePublicKey = includePublicKey;
this.includePeerID = includePeerID;
}
/**
* The XMLSignatureInfo element for an incoming adv
* @param raw
*/
public XMLSignatureInfo(Element raw) {
XMLElement elem = (XMLElement) raw;
if ("XMLSignatureInfo".equals(elem.getName())) {
Enumeration eachChild = elem.getChildren();
while (eachChild.hasMoreElements()) {
XMLElement aChild = (XMLElement) eachChild.nextElement();
if ("peerid".equals(aChild.getName())) {
try {
URI pID = new URI(aChild.getValue());
peerID = (PeerID)IDFactory.fromURI(pID);
} catch (URISyntaxException ex) {
IllegalArgumentException failure = new IllegalArgumentException("Could not process Key element");
throw failure;
}
} else if ("digest".equals(aChild.getName()) || "encodedkey".equals(aChild.getName())) {
try {
Reader encodedB64 = new StringReader(aChild.getValue());
InputStream bis = new BASE64InputStream(encodedB64);
ByteArrayOutputStream bos = new ByteArrayOutputStream();
do {
int c = bis.read();
if (-1 == c) {
break;
}
bos.write(c);
} while (true);
if ("digest".equals(aChild.getName()))
digest = bos.toByteArray();
else
encodedkey = bos.toByteArray();
bis.close();
bos.close();
} catch (IOException failed) {
IllegalArgumentException failure = new IllegalArgumentException("Could not process Key element");
throw failure;
}
} else if ("keyalgorithm".equals(aChild.getName())) {
keyalgorithm = aChild.getValue();
} else if ("signaturealgorithm".equals(aChild.getName())) {
signaturealgorithm = aChild.getValue();
}
}
}
}
/**
* Get the Key Element in order to attach it to an outgoing advertisement
* @param doc
* @return XMLElement containing peerID, digest, encodedkey, keyalgorithm
*/
public XMLDocument getXMLSignatureInfoDocument() {
StringBuilder docBuilder = new StringBuilder();
docBuilder.append("<XMLSignatureInfoDocument><XMLSignatureInfo>");
try {
StringWriter digestB64 = new StringWriter();
OutputStream digestOut = new BASE64OutputStream(digestB64);
digestOut.write(digest);
digestOut.close();
docBuilder.append("<digest>");
docBuilder.append(digestB64.toString());
docBuilder.append("</digest>");
if (encodedkey != null && includePublicKey) {
StringWriter encodedkeyB64 = new StringWriter();
OutputStream encodedkeyOut = new BASE64OutputStream(encodedkeyB64);
encodedkeyOut.write(encodedkey);
encodedkeyOut.close();
docBuilder.append("<encodedkey>");
docBuilder.append(encodedkeyB64.toString());
docBuilder.append("</encodedkey>");
}
if (peerID != null && includePeerID) {
docBuilder.append("<peerid>");
docBuilder.append(peerID.toString());
docBuilder.append("</peerid>");
}
if (keyalgorithm != null && includePublicKey) {
docBuilder.append("<keyalgorithm>");
docBuilder.append(keyalgorithm);
docBuilder.append("</keyalgorithm>");
}
if (signaturealgorithm != null) {
docBuilder.append("<signaturealgorithm>");
docBuilder.append(signaturealgorithm);
docBuilder.append("</signaturealgorithm>");
}
} catch (Exception failed) {
if (failed instanceof RuntimeException) {
throw (RuntimeException) failed;
} else {
throw new UndeclaredThrowableException(failed, "Failure building element");
}
}
docBuilder.append("</XMLSignatureInfo></XMLSignatureInfoDocument>");
try {
XMLDocument xmlSignatureInfoDocument = (XMLDocument)StructuredDocumentFactory.newStructuredDocument(
MimeMediaType.XMLUTF8,
new StringReader(docBuilder.toString()));
return xmlSignatureInfoDocument;
} catch (Exception failed) {
if (failed instanceof RuntimeException) {
throw (RuntimeException) failed;
} else {
throw new UndeclaredThrowableException(failed, "Failure building element");
}
}
}
/**
* Get the peerid
* @return PeerID of originator
*/
public PeerID getPeerID() {
return peerID;
}
/**
* Get the digest of the original adv
* @return digest
*/
public byte[] getDigest() {
return digest;
}
/**
* Get the encoded public key used for signing
* @return encoded public key
*/
public byte[] getEncodedKey() {
return encodedkey;
}
/**
* Get the public key type
* @returnthe public key type
*/
public String getKeyAlgorithm() {
return keyalgorithm;
}
/**
* Get the signature algorithm
* @returnthe signature algorithm
*/
public String getSignatureAlgorithm() {
return signaturealgorithm;
}
}