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using System;
using System.Text;
using Org.BouncyCastle.Asn1;
using Org.BouncyCastle.Asn1.Utilities;
using Org.BouncyCastle.Asn1.X509;
using Org.BouncyCastle.Math;
using Org.BouncyCastle.Security.Certificates;
using Org.BouncyCastle.Utilities;
using Org.BouncyCastle.X509.Extension;
namespace Org.BouncyCastle.X509
{
/**
* The following extensions are listed in RFC 2459 as relevant to CRL Entries
*
* ReasonCode Hode Instruction Code Invalidity Date Certificate Issuer
* (critical)
*/
public class X509CrlEntry
: X509ExtensionBase
{
private CrlEntry c;
private bool isIndirect;
private X509Name previousCertificateIssuer;
private X509Name certificateIssuer;
private volatile bool hashValueSet;
private volatile int hashValue;
public X509CrlEntry(
CrlEntry c)
{
this.c = c;
this.certificateIssuer = loadCertificateIssuer();
}
/**
* Constructor for CRLEntries of indirect CRLs. If <code>isIndirect</code>
* is <code>false</code> {@link #getCertificateIssuer()} will always
* return <code>null</code>, <code>previousCertificateIssuer</code> is
* ignored. If this <code>isIndirect</code> is specified and this CrlEntry
* has no certificate issuer CRL entry extension
* <code>previousCertificateIssuer</code> is returned by
* {@link #getCertificateIssuer()}.
*
* @param c
* TbsCertificateList.CrlEntry object.
* @param isIndirect
* <code>true</code> if the corresponding CRL is a indirect
* CRL.
* @param previousCertificateIssuer
* Certificate issuer of the previous CrlEntry.
*/
public X509CrlEntry(
CrlEntry c,
bool isIndirect,
X509Name previousCertificateIssuer)
{
this.c = c;
this.isIndirect = isIndirect;
this.previousCertificateIssuer = previousCertificateIssuer;
this.certificateIssuer = loadCertificateIssuer();
}
private X509Name loadCertificateIssuer()
{
if (!isIndirect)
{
return null;
}
Asn1OctetString ext = GetExtensionValue(X509Extensions.CertificateIssuer);
if (ext == null)
{
return previousCertificateIssuer;
}
try
{
GeneralName[] names = GeneralNames.GetInstance(
X509ExtensionUtilities.FromExtensionValue(ext)).GetNames();
for (int i = 0; i < names.Length; i++)
{
if (names[i].TagNo == GeneralName.DirectoryName)
{
return X509Name.GetInstance(names[i].Name);
}
}
}
catch (Exception)
{
}
return null;
}
public X509Name GetCertificateIssuer()
{
return certificateIssuer;
}
protected override X509Extensions GetX509Extensions()
{
return c.Extensions;
}
public byte[] GetEncoded()
{
try
{
return c.GetDerEncoded();
}
catch (Exception e)
{
throw new CrlException(e.ToString());
}
}
public BigInteger SerialNumber
{
get { return c.UserCertificate.Value; }
}
public DateTime RevocationDate
{
get { return c.RevocationDate.ToDateTime(); }
}
public bool HasExtensions
{
get { return c.Extensions != null; }
}
public override bool Equals(object other)
{
if (this == other)
return true;
X509CrlEntry that = other as X509CrlEntry;
if (null == that)
return false;
if (this.hashValueSet && that.hashValueSet)
{
if (this.hashValue != that.hashValue)
return false;
}
return this.c.Equals(that.c);
}
public override int GetHashCode()
{
if (!hashValueSet)
{
hashValue = this.c.GetHashCode();
hashValueSet = true;
}
return hashValue;
}
public override string ToString()
{
StringBuilder buf = new StringBuilder();
buf.Append(" userCertificate: ").Append(this.SerialNumber).AppendLine();
buf.Append(" revocationDate: ").Append(this.RevocationDate).AppendLine();
buf.Append(" certificateIssuer: ").Append(this.GetCertificateIssuer()).AppendLine();
X509Extensions extensions = c.Extensions;
if (extensions != null)
{
var e = extensions.ExtensionOids.GetEnumerator();
if (e.MoveNext())
{
buf.AppendLine(" crlEntryExtensions:");
do
{
DerObjectIdentifier oid = e.Current;
X509Extension ext = extensions.GetExtension(oid);
if (ext.Value != null)
{
Asn1Object obj = X509ExtensionUtilities.FromExtensionValue(ext.Value);
buf.Append(" critical(")
.Append(ext.IsCritical)
.Append(") ");
try
{
if (oid.Equals(X509Extensions.ReasonCode))
{
buf.Append(new CrlReason(DerEnumerated.GetInstance(obj)));
}
else if (oid.Equals(X509Extensions.CertificateIssuer))
{
buf.Append("Certificate issuer: ").Append(
GeneralNames.GetInstance((Asn1Sequence)obj));
}
else
{
buf.Append(oid.Id);
buf.Append(" value = ").Append(Asn1Dump.DumpAsString(obj));
}
buf.AppendLine();
}
catch (Exception)
{
buf.Append(oid.Id);
buf.Append(" value = ").Append("*****").AppendLine();
}
}
else
{
buf.AppendLine();
}
}
while (e.MoveNext());
}
}
return buf.ToString();
}
}
}
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