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author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
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committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /libjava/classpath/java/security/cert/X509CRLSelector.java | |
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Diffstat (limited to 'libjava/classpath/java/security/cert/X509CRLSelector.java')
-rw-r--r-- | libjava/classpath/java/security/cert/X509CRLSelector.java | 442 |
1 files changed, 442 insertions, 0 deletions
diff --git a/libjava/classpath/java/security/cert/X509CRLSelector.java b/libjava/classpath/java/security/cert/X509CRLSelector.java new file mode 100644 index 000000000..d412a1ae3 --- /dev/null +++ b/libjava/classpath/java/security/cert/X509CRLSelector.java @@ -0,0 +1,442 @@ +/* X509CRLSelector.java -- selects X.509 CRLs by criteria. + Copyright (C) 2004 Free Software Foundation, Inc. + +This file is part of GNU Classpath. + +GNU Classpath 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; either version 2, or (at your option) +any later version. + +GNU Classpath 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 GNU Classpath; see the file COPYING. If not, write to the +Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301 USA. + +Linking this library statically or dynamically with other modules is +making a combined work based on this library. Thus, the terms and +conditions of the GNU General Public License cover the whole +combination. + +As a special exception, the copyright holders of this library give you +permission to link this library with independent modules to produce an +executable, regardless of the license terms of these independent +modules, and to copy and distribute the resulting executable under +terms of your choice, provided that you also meet, for each linked +independent module, the terms and conditions of the license of that +module. An independent module is a module which is not derived from +or based on this library. If you modify this library, you may extend +this exception to your version of the library, but you are not +obligated to do so. If you do not wish to do so, delete this +exception statement from your version. */ + + +package java.security.cert; + +import gnu.classpath.SystemProperties; +import gnu.java.lang.CPStringBuilder; +import gnu.java.security.der.DERReader; +import gnu.java.security.der.DERValue; + +import java.io.IOException; +import java.io.InputStream; +import java.math.BigInteger; +import java.util.ArrayList; +import java.util.Collection; +import java.util.Collections; +import java.util.Date; +import java.util.Iterator; +import java.util.LinkedList; +import java.util.List; + +import javax.security.auth.x500.X500Principal; + +/** + * A class for matching X.509 certificate revocation lists by criteria. + * + * <p>Use of this class requires extensive knowledge of the Internet + * Engineering Task Force's Public Key Infrastructure (X.509). The primary + * document describing this standard is <a + * href="http://www.ietf.org/rfc/rfc3280.txt">RFC 3280: Internet X.509 + * Public Key Infrastructure Certificate and Certificate Revocation List + * (CRL) Profile</a>. + * + * <p>Note that this class is not thread-safe. If multiple threads will + * use or modify this class then they need to synchronize on the object. + * + * @author Casey Marshall (csm@gnu.org) + * @since 1.4 + */ +public class X509CRLSelector implements CRLSelector, Cloneable +{ + + // Fields. + // ------------------------------------------------------------------------- + + private static final String CRL_NUMBER_ID = "2.5.29.20"; + + private List issuerNames; + private BigInteger maxCrlNumber; + private BigInteger minCrlNumber; + private Date date; + private X509Certificate cert; + + // Constructor. + // ------------------------------------------------------------------------- + + /** + * Creates a new CRL selector with no criteria enabled; i.e., every CRL + * will be matched. + */ + public X509CRLSelector() + { + } + + // Instance methods. + // ------------------------------------------------------------------------- + + /** + * Add an issuer name to the set of issuer names criteria, as the DER + * encoded form. + * + * @param name The name to add, as DER bytes. + * @throws IOException If the argument is not a valid DER-encoding. + */ + public void addIssuerName(byte[] name) throws IOException + { + X500Principal p = null; + try + { + p = new X500Principal(name); + } + catch (IllegalArgumentException iae) + { + IOException ioe = new IOException("malformed name"); + ioe.initCause(iae); + throw ioe; + } + if (issuerNames == null) + issuerNames = new LinkedList(); + issuerNames.add(p); + } + + /** + * Add an issuer name to the set of issuer names criteria, as a + * String representation. + * + * @param name The name to add. + * @throws IOException If the argument is not a valid name. + */ + public void addIssuerName(String name) throws IOException + { + X500Principal p = null; + try + { + p = new X500Principal(name); + } + catch (IllegalArgumentException iae) + { + IOException ioe = new IOException("malformed name: " + name); + ioe.initCause(iae); + throw ioe; + } + if (issuerNames == null) + issuerNames = new LinkedList(); + issuerNames.add(p); + } + + /** + * Sets the issuer names criterion. Pass <code>null</code> to clear this + * value. CRLs matched by this selector must have an issuer name in this + * set. + * + * @param names The issuer names. + * @throws IOException If any of the elements in the collection is not + * a valid name. + */ + public void setIssuerNames(Collection<?> names) throws IOException + { + if (names == null) + { + issuerNames = null; + return; + } + List l = new ArrayList(names.size()); + for (Iterator it = names.iterator(); it.hasNext(); ) + { + Object o = it.next(); + if (o instanceof X500Principal) + l.add(o); + else if (o instanceof String) + { + try + { + l.add(new X500Principal((String) o)); + } + catch (IllegalArgumentException iae) + { + IOException ioe = new IOException("malformed name: " + o); + ioe.initCause(iae); + throw ioe; + } + } + else if (o instanceof byte[]) + { + try + { + l.add(new X500Principal((byte[]) o)); + } + catch (IllegalArgumentException iae) + { + IOException ioe = new IOException("malformed name"); + ioe.initCause(iae); + throw ioe; + } + } + else if (o instanceof InputStream) + { + try + { + l.add(new X500Principal((InputStream) o)); + } + catch (IllegalArgumentException iae) + { + IOException ioe = new IOException("malformed name"); + ioe.initCause(iae); + throw ioe; + } + } + else + throw new IOException("not a valid name: " + + (o != null ? o.getClass().getName() : "null")); + + } + issuerNames = l; + } + + /** + * Returns the set of issuer names that are matched by this selector, + * or <code>null</code> if this criteria is not set. The returned + * collection is not modifiable. + * + * @return The set of issuer names. + */ + public Collection<Object> getIssuerNames() + { + if (issuerNames != null) + return Collections.unmodifiableList(issuerNames); + else + return null; + } + + /** + * Returns the maximum value of the CRLNumber extension present in + * CRLs matched by this selector, or <code>null</code> if this + * criteria is not set. + * + * @return The maximum CRL number. + */ + public BigInteger getMaxCRL() + { + return maxCrlNumber; + } + + /** + * Returns the minimum value of the CRLNumber extension present in + * CRLs matched by this selector, or <code>null</code> if this + * criteria is not set. + * + * @return The minimum CRL number. + */ + public BigInteger getMinCRL() + { + return minCrlNumber; + } + + /** + * Sets the maximum value of the CRLNumber extension present in CRLs + * matched by this selector. Specify <code>null</code> to clear this + * criterion. + * + * @param maxCrlNumber The maximum CRL number. + */ + public void setMaxCRLNumber(BigInteger maxCrlNumber) + { + this.maxCrlNumber = maxCrlNumber; + } + + /** + * Sets the minimum value of the CRLNumber extension present in CRLs + * matched by this selector. Specify <code>null</code> to clear this + * criterion. + * + * @param minCrlNumber The minimum CRL number. + */ + public void setMinCRLNumber(BigInteger minCrlNumber) + { + this.minCrlNumber = minCrlNumber; + } + + /** + * Returns the date when this CRL must be valid; that is, the date + * must be after the thisUpdate date, but before the nextUpdate date. + * Returns <code>null</code> if this criterion is not set. + * + * @return The date. + */ + public Date getDateAndTime() + { + return date != null ? (Date) date.clone() : null; + } + + /** + * Sets the date at which this CRL must be valid. Specify + * <code>null</code> to clear this criterion. + * + * @param date The date. + */ + public void setDateAndTime(Date date) + { + this.date = date != null ? (Date) date.clone() : null; + } + + /** + * Returns the certificate being checked, or <code>null</code> if this + * value is not set. + * + * @return The certificate. + */ + public X509Certificate getCertificateChecking() + { + return cert; + } + + /** + * Sets the certificate being checked. This is not a criterion, but + * info used by certificate store implementations to aid in searching. + * + * @param cert The certificate. + */ + public void setCertificateChecking(X509Certificate cert) + { + this.cert = cert; + } + + /** + * Returns a string representation of this selector. The string will + * only describe the enabled criteria, so if none are enabled this will + * return a string that contains little else besides the class name. + * + * @return The string. + */ + public String toString() + { + CPStringBuilder str = new CPStringBuilder(X509CRLSelector.class.getName()); + String nl = SystemProperties.getProperty("line.separator"); + String eol = ";" + nl; + + str.append(" {").append(nl); + if (issuerNames != null) + str.append(" issuer names = ").append(issuerNames).append(eol); + if (maxCrlNumber != null) + str.append(" max CRL = ").append(maxCrlNumber).append(eol); + if (minCrlNumber != null) + str.append(" min CRL = ").append(minCrlNumber).append(eol); + if (date != null) + str.append(" date = ").append(date).append(eol); + if (cert != null) + str.append(" certificate = ").append(cert).append(eol); + str.append("}").append(nl); + return str.toString(); + } + + /** + * Checks a CRL against the criteria of this selector, returning + * <code>true</code> if the given CRL matches all the criteria. + * + * @param _crl The CRL being checked. + * @return True if the CRL matches, false otherwise. + */ + public boolean match(CRL _crl) + { + if (!(_crl instanceof X509CRL)) + return false; + X509CRL crl = (X509CRL) _crl; + if (issuerNames != null) + { + if (!issuerNames.contains(crl.getIssuerX500Principal())) + return false; + } + BigInteger crlNumber = null; + if (maxCrlNumber != null) + { + byte[] b = crl.getExtensionValue(CRL_NUMBER_ID); + if (b == null) + return false; + try + { + DERValue val = DERReader.read(b); + if (!(val.getValue() instanceof BigInteger)) + return false; + crlNumber = (BigInteger) val.getValue(); + } + catch (IOException ioe) + { + return false; + } + if (maxCrlNumber.compareTo(crlNumber) < 0) + return false; + } + if (minCrlNumber != null) + { + if (crlNumber == null) + { + byte[] b = crl.getExtensionValue(CRL_NUMBER_ID); + if (b == null) + return false; + try + { + DERValue val = DERReader.read(b); + if (!(val.getValue() instanceof BigInteger)) + return false; + crlNumber = (BigInteger) val.getValue(); + } + catch (IOException ioe) + { + return false; + } + } + if (minCrlNumber.compareTo(crlNumber) > 0) + return false; + } + if (date != null) + { + if (date.compareTo(crl.getThisUpdate()) < 0 || + date.compareTo(crl.getNextUpdate()) > 0) + return false; + } + return true; + } + + /** + * Returns a copy of this object. + * + * @return The copy. + */ + public Object clone() + { + try + { + return super.clone(); + } + catch (CloneNotSupportedException shouldNotHappen) + { + throw new Error(shouldNotHappen); + } + } +} |