001/*
002 * Copyright 2012-2020 Ping Identity Corporation
003 * All Rights Reserved.
004 */
005/*
006 * Copyright 2012-2020 Ping Identity Corporation
007 *
008 * Licensed under the Apache License, Version 2.0 (the "License");
009 * you may not use this file except in compliance with the License.
010 * You may obtain a copy of the License at
011 *
012 *    http://www.apache.org/licenses/LICENSE-2.0
013 *
014 * Unless required by applicable law or agreed to in writing, software
015 * distributed under the License is distributed on an "AS IS" BASIS,
016 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
017 * See the License for the specific language governing permissions and
018 * limitations under the License.
019 */
020/*
021 * Copyright (C) 2012-2020 Ping Identity Corporation
022 *
023 * This program is free software; you can redistribute it and/or modify
024 * it under the terms of the GNU General Public License (GPLv2 only)
025 * or the terms of the GNU Lesser General Public License (LGPLv2.1 only)
026 * as published by the Free Software Foundation.
027 *
028 * This program is distributed in the hope that it will be useful,
029 * but WITHOUT ANY WARRANTY; without even the implied warranty of
030 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
031 * GNU General Public License for more details.
032 *
033 * You should have received a copy of the GNU General Public License
034 * along with this program; if not, see <http://www.gnu.org/licenses>.
035 */
036package com.unboundid.util.ssl;
037
038
039
040import java.security.cert.CertificateException;
041import java.security.cert.X509Certificate;
042import java.util.Date;
043import javax.net.ssl.X509TrustManager;
044import javax.security.auth.x500.X500Principal;
045
046import com.unboundid.util.NotMutable;
047import com.unboundid.util.ThreadSafety;
048import com.unboundid.util.ThreadSafetyLevel;
049
050import static com.unboundid.util.ssl.SSLMessages.*;
051
052
053
054/**
055 * This class provides an SSL trust manager that merely checks to see whether
056 * a presented certificate is currently within its validity time window (i.e.,
057 * the current time is not earlier than the certificate's notBefore timestamp
058 * and not later than the certificate's notAfter timestamp).
059 * <BR><BR>
060 * Note that no other elements of the certificate are examined, so it is
061 * strongly recommended that this trust manager be used in an
062 * {@link AggregateTrustManager} in conjunction with other trust managers that
063 * perform other forms of validation.
064 */
065@NotMutable()
066@ThreadSafety(level=ThreadSafetyLevel.COMPLETELY_THREADSAFE)
067public final class ValidityDateTrustManager
068       implements X509TrustManager
069{
070  /**
071   * A pre-allocated empty certificate array.
072   */
073  private static final X509Certificate[] NO_CERTIFICATES =
074       new X509Certificate[0];
075
076
077
078  /**
079   * Creates a new validity date trust manager.
080   */
081  public ValidityDateTrustManager()
082  {
083    // No implementation is required.
084  }
085
086
087
088  /**
089   * Checks to determine whether the provided client certificate chain should be
090   * trusted.
091   *
092   * @param  chain     The client certificate chain for which to make the
093   *                   determination.
094   * @param  authType  The authentication type based on the client certificate.
095   *
096   * @throws  CertificateException  If the provided client certificate chain
097   *                                should not be trusted.
098   */
099  @Override()
100  public void checkClientTrusted(final X509Certificate[] chain,
101                                 final String authType)
102         throws CertificateException
103  {
104    checkCertificateValidity(chain[0]);
105  }
106
107
108
109  /**
110   * Checks to determine whether the provided server certificate chain should be
111   * trusted.
112   *
113   * @param  chain     The server certificate chain for which to make the
114   *                   determination.
115   * @param  authType  The key exchange algorithm used.
116   *
117   * @throws  CertificateException  If the provided server certificate chain
118   *                                should not be trusted.
119   */
120  @Override()
121  public void checkServerTrusted(final X509Certificate[] chain,
122                                 final String authType)
123         throws CertificateException
124  {
125    checkCertificateValidity(chain[0]);
126  }
127
128
129
130  /**
131   * Checks the provided certificate to determine whether the current time is
132   * within the certificate's validity window.
133   *
134   * @param  c  The certificate to be checked.
135   *
136   * @throws  CertificateException  If the presented certificate is outside the
137   *                                validity window.
138   */
139  private static void checkCertificateValidity(final X509Certificate c)
140         throws CertificateException
141  {
142    final Date currentTime = new Date();
143    final Date notBefore   = c.getNotBefore();
144    final Date notAfter    = c.getNotAfter();
145
146    if (currentTime.before(notBefore))
147    {
148      throw new CertificateException(ERR_VALIDITY_TOO_EARLY.get(
149           c.getSubjectX500Principal().getName(X500Principal.RFC2253),
150           String.valueOf(notBefore)));
151    }
152
153    if (currentTime.after(c.getNotAfter()))
154    {
155      throw new CertificateException(ERR_VALIDITY_TOO_LATE.get(
156           c.getSubjectX500Principal().getName(X500Principal.RFC2253),
157           String.valueOf(notAfter)));
158    }
159  }
160
161
162
163  /**
164   * Retrieves the accepted issuer certificates for this trust manager.  This
165   * will always return an empty array.
166   *
167   * @return  The accepted issuer certificates for this trust manager.
168   */
169  @Override()
170  public X509Certificate[] getAcceptedIssuers()
171  {
172    return NO_CERTIFICATES;
173  }
174}