From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- .../java/security/cert/CertPathBuilder.java | 251 +++++++++++++++++++++ 1 file changed, 251 insertions(+) create mode 100644 libjava/classpath/java/security/cert/CertPathBuilder.java (limited to 'libjava/classpath/java/security/cert/CertPathBuilder.java') diff --git a/libjava/classpath/java/security/cert/CertPathBuilder.java b/libjava/classpath/java/security/cert/CertPathBuilder.java new file mode 100644 index 000000000..47bae6db8 --- /dev/null +++ b/libjava/classpath/java/security/cert/CertPathBuilder.java @@ -0,0 +1,251 @@ +/* CertPathBuilder.java -- bulids CertPath objects from Certificates. + Copyright (C) 2003, 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.java.lang.CPStringBuilder; + +import gnu.java.security.Engine; + +import java.lang.reflect.InvocationTargetException; +import java.security.InvalidAlgorithmParameterException; +import java.security.NoSuchAlgorithmException; +import java.security.NoSuchProviderException; +import java.security.Provider; +import java.security.Security; + +/** + * This class builds certificate paths (also called certificate chains), + * which can be used to establish trust for a particular certificate by + * building a path from a trusted certificate (a trust anchor) to the + * untrusted certificate. + * + * @see CertPath + */ +public class CertPathBuilder +{ + + // Constants and fields. + // ------------------------------------------------------------------------ + + /** Service name for CertPathBuilder. */ + private static final String CERT_PATH_BUILDER = "CertPathBuilder"; + + /** The underlying implementation. */ + private CertPathBuilderSpi cpbSpi; + + /** The provider of this implementation. */ + private Provider provider; + + /** The name of this implementation. */ + private String algorithm; + + // Constructor. + // ------------------------------------------------------------------------ + + /** + * Creates a new CertPathBuilder. + * + * @param cpbSpi The underlying implementation. + * @param provider The provider of the implementation. + * @param algorithm This implementation's name. + */ + protected CertPathBuilder(CertPathBuilderSpi cpbSpi, Provider provider, + String algorithm) + { + this.cpbSpi = cpbSpi; + this.provider = provider; + this.algorithm = algorithm; + } + + // Class methods. + // ------------------------------------------------------------------------ + + /** + * Get the default cert path builder type. + * + *

This value can be set at run-time by the security property + * "certpathbuilder.type". If this property is not set, + * then the value returned is "PKIX". + * + * @return The default CertPathBuilder algorithm. + */ + public static final String getDefaultType() + { + String type = Security.getProperty("certpathbuilder.type"); + if (type == null) + type = "PKIX"; + return type; + } + + /** + * Returns an instance of a named CertPathBuilder from the + * first provider that implements it. + * + * @param algorithm The name of the CertPathBuilder to create. + * @return The new instance. + * @throws NoSuchAlgorithmException If no installed provider implements the + * named algorithm. + * @throws IllegalArgumentException if algorithm is + * null or is an empty string. + */ + public static CertPathBuilder getInstance(String algorithm) + throws NoSuchAlgorithmException + { + Provider[] p = Security.getProviders(); + NoSuchAlgorithmException lastException = null; + for (int i = 0; i < p.length; i++) + try + { + return getInstance(algorithm, p[i]); + } + catch (NoSuchAlgorithmException x) + { + lastException = x; + } + if (lastException != null) + throw lastException; + throw new NoSuchAlgorithmException(algorithm); + } + + /** + * Returns an instance of a named CertPathBuilder from a named + * provider. + * + * @param algorithm The name of the CertPathBuilder to create. + * @param provider The name of the provider to use. + * @return The new instance. + * @throws NoSuchAlgorithmException If no installed provider implements the + * named algorithm. + * @throws NoSuchProviderException If the named provider does not exist. + * @throws IllegalArgumentException if either algorithm or + * provider is null, or if + * algorithm is an empty string. + */ + public static CertPathBuilder getInstance(String algorithm, String provider) + throws NoSuchAlgorithmException, NoSuchProviderException + { + if (provider == null) + throw new IllegalArgumentException("provider MUST NOT be null"); + Provider p = Security.getProvider(provider); + if (p == null) + throw new NoSuchProviderException(provider); + return getInstance(algorithm, p); + } + + /** + * Returns an instance of a named CertPathBuilder from the + * specified provider. + * + * @param algorithm The name of the CertPathBuilder to create. + * @param provider The provider to use. + * @return The new instance. + * @throws NoSuchAlgorithmException If no installed provider implements the + * named algorithm. + * @throws IllegalArgumentException if either algorithm or + * provider is null, or if + * algorithm is an empty string. + */ + public static CertPathBuilder getInstance(String algorithm, Provider provider) + throws NoSuchAlgorithmException + { + CPStringBuilder sb = new CPStringBuilder("CertPathBuilder for algorithm [") + .append(algorithm).append("] from provider[") + .append(provider).append("] could not be created"); + Throwable cause; + try + { + Object spi = Engine.getInstance(CERT_PATH_BUILDER, algorithm, provider); + return new CertPathBuilder((CertPathBuilderSpi) spi, provider, algorithm); + } + catch (InvocationTargetException x) + { + cause = x.getCause(); + if (cause instanceof NoSuchAlgorithmException) + throw (NoSuchAlgorithmException) cause; + if (cause == null) + cause = x; + } + catch (ClassCastException x) + { + cause = x; + } + NoSuchAlgorithmException x = new NoSuchAlgorithmException(sb.toString()); + x.initCause(cause); + throw x; + } + + /** + * Return the name of this CertPathBuilder algorithm. + * + * @return The algorithm name. + */ + public final String getAlgorithm() + { + return algorithm; + } + + /** + * Return the provider of this instance's implementation. + * + * @return The provider. + */ + public final Provider getProvider() + { + return provider; + } + + /** + * Builds a certificate path. The {@link CertPathParameters} parameter + * passed to this method is implementation-specific, but in general + * should contain some number of certificates and some number of + * trusted certificates (or "trust anchors"). + * + * @param params The parameters. + * @retrun The certificate path result. + * @throws CertPathBuilderException If the certificate path cannot be + * built. + * @throws InvalidAlgorithmParameterException If the implementation + * rejects the specified parameters. + */ + public final CertPathBuilderResult build(CertPathParameters params) + throws CertPathBuilderException, InvalidAlgorithmParameterException + { + return cpbSpi.engineBuild(params); + } +} -- cgit v1.2.3