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/*
* Copyright (c) 2000, 2012, Oracle and/or its affiliates. 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. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package sun.security.provider.certpath;
import java.io.IOException;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import sun.security.util.Debug;
import sun.security.x509.AuthorityKeyIdentifierExtension;
import sun.security.x509.KeyIdentifier;
import sun.security.x509.SubjectKeyIdentifierExtension;
import sun.security.x509.X509CertImpl;
/*
* This class represents a vertex in the adjacency list. A
* vertex in the builder's view is just a distinguished name
* in the directory. The Vertex contains a certificate
* along an attempted certification path, along with a pointer
* to a list of certificates that followed this one in various
* attempted certification paths.
*
* @author Sean Mullan
* @since 1.4
*/
public class Vertex {
private static final Debug debug = Debug.getInstance("certpath");
private X509Certificate cert;
private int index;
private Throwable throwable;
/**
* Constructor; creates vertex with index of -1
* Use setIndex method to set another index.
*
* @param cert X509Certificate associated with vertex
*/
Vertex(X509Certificate cert) {
this.cert = cert;
this.index = -1;
}
/**
* return the certificate for this vertex
*
* @returns X509Certificate
*/
public X509Certificate getCertificate() {
return cert;
}
/**
* get the index for this vertex, where the index is the row of the
* adjacency list that contains certificates that could follow this
* certificate.
*
* @returns int index for this vertex, or -1 if no following certificates.
*/
public int getIndex() {
return index;
}
/**
* set the index for this vertex, where the index is the row of the
* adjacency list that contains certificates that could follow this
* certificate.
*
* @param ndx int index for vertex, or -1 if no following certificates.
*/
void setIndex(int ndx) {
index = ndx;
}
/**
* return the throwable associated with this vertex;
* returns null if none.
*
* @returns Throwable
*/
public Throwable getThrowable() {
return throwable;
}
/**
* set throwable associated with this vertex; default value is null.
*
* @param throwable Throwable associated with this vertex
* (or null)
*/
void setThrowable(Throwable throwable) {
this.throwable = throwable;
}
/**
* Return full string representation of vertex
*
* @returns String representation of vertex
*/
@Override
public String toString() {
return certToString() + throwableToString() + indexToString();
}
/**
* Return string representation of this vertex's
* certificate information.
*
* @returns String representation of certificate info
*/
public String certToString() {
StringBuilder sb = new StringBuilder();
X509CertImpl x509Cert = null;
try {
x509Cert = X509CertImpl.toImpl(cert);
} catch (CertificateException ce) {
if (debug != null) {
debug.println("Vertex.certToString() unexpected exception");
ce.printStackTrace();
}
return sb.toString();
}
sb.append("Issuer: ").append
(x509Cert.getIssuerX500Principal()).append("\n");
sb.append("Subject: ").append
(x509Cert.getSubjectX500Principal()).append("\n");
sb.append("SerialNum: ").append
(x509Cert.getSerialNumber().toString(16)).append("\n");
sb.append("Expires: ").append
(x509Cert.getNotAfter().toString()).append("\n");
boolean[] iUID = x509Cert.getIssuerUniqueID();
if (iUID != null) {
sb.append("IssuerUID: ");
for (boolean b : iUID) {
sb.append(b ? 1 : 0);
}
sb.append("\n");
}
boolean[] sUID = x509Cert.getSubjectUniqueID();
if (sUID != null) {
sb.append("SubjectUID: ");
for (boolean b : sUID) {
sb.append(b ? 1 : 0);
}
sb.append("\n");
}
try {
SubjectKeyIdentifierExtension sKeyID =
x509Cert.getSubjectKeyIdentifierExtension();
if (sKeyID != null) {
KeyIdentifier keyID = sKeyID.get(
SubjectKeyIdentifierExtension.KEY_ID);
sb.append("SubjKeyID: ").append(keyID.toString());
}
AuthorityKeyIdentifierExtension aKeyID =
x509Cert.getAuthorityKeyIdentifierExtension();
if (aKeyID != null) {
KeyIdentifier keyID = (KeyIdentifier)aKeyID.get(
AuthorityKeyIdentifierExtension.KEY_ID);
sb.append("AuthKeyID: ").append(keyID.toString());
}
} catch (IOException e) {
if (debug != null) {
debug.println("Vertex.certToString() unexpected exception");
e.printStackTrace();
}
}
return sb.toString();
}
/**
* return Vertex throwable as String compatible with
* the way toString returns other information
*
* @returns String form of exception (or "none")
*/
public String throwableToString() {
StringBuilder sb = new StringBuilder("Exception: ");
if (throwable != null)
sb.append(throwable.toString());
else
sb.append("null");
sb.append("\n");
return sb.toString();
}
/**
* return Vertex index as String compatible with
* the way other Vertex.xToString() methods display
* information.
*
* @returns String form of index as "Last cert? [Yes/No]
*/
public String moreToString() {
StringBuilder sb = new StringBuilder("Last cert? ");
sb.append((index == -1) ? "Yes" : "No");
sb.append("\n");
return sb.toString();
}
/**
* return Vertex index as String compatible with
* the way other Vertex.xToString() methods displays other information.
*
* @returns String form of index as "Index: [numeric index]"
*/
public String indexToString() {
return "Index: " + index + "\n";
}
}
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