diff options
Diffstat (limited to 'base/common/src/com/netscape/cmscore/authentication/VerifiedCerts.java')
-rw-r--r-- | base/common/src/com/netscape/cmscore/authentication/VerifiedCerts.java | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/base/common/src/com/netscape/cmscore/authentication/VerifiedCerts.java b/base/common/src/com/netscape/cmscore/authentication/VerifiedCerts.java new file mode 100644 index 000000000..9ceae4487 --- /dev/null +++ b/base/common/src/com/netscape/cmscore/authentication/VerifiedCerts.java @@ -0,0 +1,161 @@ +// --- BEGIN COPYRIGHT BLOCK --- +// This program is free software; you can redistribute it and/or modify +// it under the terms of the GNU General Public License as published by +// the Free Software Foundation; version 2 of the License. +// +// This program 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 for more details. +// +// You should have received a copy of the GNU General Public License along +// with this program; if not, write to the Free Software Foundation, Inc., +// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. +// +// (C) 2007 Red Hat, Inc. +// All rights reserved. +// --- END COPYRIGHT BLOCK --- +package com.netscape.cmscore.authentication; + + +import java.util.*; +import java.math.BigInteger; +import netscape.security.x509.*; + + +/** + * class storing verified certificates. + * + * @version $Revision$, $Date$ + */ + +public class VerifiedCerts { + + /* the value type of the dn component */ + private int mFirst = 0; + private int mLast = 0; + private int mNext = 0; + private VerifiedCert[] mVCerts = null; + private long mInterval = 0; + private long mUnknownStateInterval = 0; + + /** + * Constructs verified certiificates list + */ + + public VerifiedCerts(int size, long interval) { + mVCerts = new VerifiedCert[size]; + mInterval = interval; + mUnknownStateInterval = interval; + } + + public VerifiedCerts(int size, long interval, long unknownStateInterval) { + mVCerts = new VerifiedCert[size]; + mInterval = interval; + mUnknownStateInterval = unknownStateInterval; + } + + public void update(X509CertImpl cert, int status) { + if (cert != null) { + byte[] certEncoded = null; + + try { + certEncoded = cert.getEncoded(); + } catch (Exception e) { + } + if ((certEncoded != null || + (status == VerifiedCert.CHECKED && mUnknownStateInterval > 0)) + && mInterval > 0) { + update(cert.getSerialNumber(), certEncoded, status); + } + } + } + + public synchronized void update(BigInteger serialNumber, byte[] certEncoded, int status) { + if ((status == VerifiedCert.NOT_REVOKED || + status == VerifiedCert.REVOKED || + (status == VerifiedCert.CHECKED && mUnknownStateInterval > 0)) + && mInterval > 0) { + if (mLast == mNext && mFirst == mNext) { // empty + mVCerts[mNext] = new VerifiedCert(serialNumber, certEncoded, status); + mNext = next(mNext); + } else if (mFirst == mNext) { // full + mFirst = next(mFirst); + mVCerts[mNext] = new VerifiedCert(serialNumber, certEncoded, status); + mLast = mNext; + mNext = next(mNext); + } else { + mVCerts[mNext] = new VerifiedCert(serialNumber, certEncoded, status); + mLast = mNext; + mNext = next(mNext); + } + } + } + + public int check(X509CertImpl cert) { + int status = VerifiedCert.UNKNOWN; + + if (mLast != mNext && mInterval > 0) { // if not empty and + if (cert != null) { + byte[] certEncoded = null; + + try { + certEncoded = cert.getEncoded(); + } catch (Exception e) { + } + if (certEncoded != null) { + status = check(cert.getSerialNumber(), certEncoded); + } + } + } + + return status; + } + + public synchronized int check(BigInteger serialNumber, byte[] certEncoded) { + int status = VerifiedCert.UNKNOWN; + int i = mLast; + + if (mVCerts != null && mLast != mNext && mInterval > 0) { // if not empty and + while (status == VerifiedCert.UNKNOWN) { + if (mVCerts[i] == null) + return status; + status = mVCerts[i].check(serialNumber, certEncoded, + mInterval, mUnknownStateInterval); + if (status == VerifiedCert.EXPIRED) { + if (mFirst == mLast) + mNext = mLast; + else + mFirst = next(i); + break; + } else if (mFirst == i) { + break; + } else { + i = previous(i); + } + } + if (status == VerifiedCert.UNKNOWN) + status = mVCerts[i].check(serialNumber, certEncoded, + mInterval, mUnknownStateInterval); + } + + return status; + } + + private int next(int i) { + i++; + if (i >= mVCerts.length) + i = 0; + + return i; + } + + private int previous(int i) { + if (i <= 0) + i = mVCerts.length; + i--; + + return i; + } +} + |