| /* |
| * Copyright (c) 1999, 2012, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code 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 |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package javax.net.ssl; |
| |
| import java.security.Security; |
| import java.security.*; |
| |
| import sun.security.jca.GetInstance; |
| |
| /** |
| * This class acts as a factory for trust managers based on a |
| * source of trust material. Each trust manager manages a specific |
| * type of trust material for use by secure sockets. The trust |
| * material is based on a KeyStore and/or provider specific sources. |
| * |
| * <p> Android provides the following <code>TrustManagerFactory</code> algorithms: |
| * <table> |
| * <thead> |
| * <tr> |
| * <th>Algorithm</th> |
| * <th>Supported API Levels</th> |
| * </tr> |
| * </thead> |
| * <tbody> |
| * <tr> |
| * <td>PKIX</td> |
| * <td>1+</td> |
| * </tr> |
| * </tbody> |
| * </table> |
| * |
| * @since 1.4 |
| * @see TrustManager |
| */ |
| public class TrustManagerFactory { |
| // The provider |
| private Provider provider; |
| |
| // The provider implementation (delegate) |
| private TrustManagerFactorySpi factorySpi; |
| |
| // The name of the trust management algorithm. |
| private String algorithm; |
| |
| /** |
| * Obtains the default TrustManagerFactory algorithm name. |
| * |
| * <p>The default TrustManager can be changed at runtime by setting |
| * the value of the {@code ssl.TrustManagerFactory.algorithm} |
| * security property to the desired algorithm name. |
| * |
| * @see java.security.Security security properties |
| * @return the default algorithm name as specified by the |
| * {@code ssl.TrustManagerFactory.algorithm} security property, or an |
| * implementation-specific default if no such property exists. |
| */ |
| public final static String getDefaultAlgorithm() { |
| String type; |
| type = AccessController.doPrivileged(new PrivilegedAction<String>() { |
| @Override |
| public String run() { |
| return Security.getProperty( |
| "ssl.TrustManagerFactory.algorithm"); |
| } |
| }); |
| if (type == null) { |
| type = "SunX509"; |
| } |
| return type; |
| } |
| |
| /** |
| * Creates a TrustManagerFactory object. |
| * |
| * @param factorySpi the delegate |
| * @param provider the provider |
| * @param algorithm the algorithm |
| */ |
| protected TrustManagerFactory(TrustManagerFactorySpi factorySpi, |
| Provider provider, String algorithm) { |
| this.factorySpi = factorySpi; |
| this.provider = provider; |
| this.algorithm = algorithm; |
| } |
| |
| /** |
| * Returns the algorithm name of this <code>TrustManagerFactory</code> |
| * object. |
| * |
| * <p>This is the same name that was specified in one of the |
| * <code>getInstance</code> calls that created this |
| * <code>TrustManagerFactory</code> object. |
| * |
| * @return the algorithm name of this <code>TrustManagerFactory</code> |
| * object |
| */ |
| public final String getAlgorithm() { |
| return this.algorithm; |
| } |
| |
| /** |
| * Returns a <code>TrustManagerFactory</code> object that acts as a |
| * factory for trust managers. |
| * |
| * <p> This method traverses the list of registered security Providers, |
| * starting with the most preferred Provider. |
| * A new TrustManagerFactory object encapsulating the |
| * TrustManagerFactorySpi implementation from the first |
| * Provider that supports the specified algorithm is returned. |
| * |
| * <p> Note that the list of registered providers may be retrieved via |
| * the {@link Security#getProviders() Security.getProviders()} method. |
| * |
| * @param algorithm the standard name of the requested trust management |
| * algorithm. See the <a href= |
| * "{@docRoot}/../technotes/guides/security/jsse/JSSERefGuide.html"> |
| * Java Secure Socket Extension Reference Guide </a> |
| * for information about standard algorithm names. |
| * |
| * @return the new <code>TrustManagerFactory</code> object. |
| * |
| * @exception NoSuchAlgorithmException if no Provider supports a |
| * TrustManagerFactorySpi implementation for the |
| * specified algorithm. |
| * @exception NullPointerException if algorithm is null. |
| * |
| * @see java.security.Provider |
| */ |
| public static final TrustManagerFactory getInstance(String algorithm) |
| throws NoSuchAlgorithmException { |
| GetInstance.Instance instance = GetInstance.getInstance |
| ("TrustManagerFactory", TrustManagerFactorySpi.class, |
| algorithm); |
| return new TrustManagerFactory((TrustManagerFactorySpi)instance.impl, |
| instance.provider, algorithm); |
| } |
| |
| /** |
| * Returns a <code>TrustManagerFactory</code> object that acts as a |
| * factory for trust managers. |
| * |
| * <p> A new KeyManagerFactory object encapsulating the |
| * KeyManagerFactorySpi implementation from the specified provider |
| * is returned. The specified provider must be registered |
| * in the security provider list. |
| * |
| * <p> Note that the list of registered providers may be retrieved via |
| * the {@link Security#getProviders() Security.getProviders()} method. |
| * |
| * @param algorithm the standard name of the requested trust management |
| * algorithm. See the <a href= |
| * "{@docRoot}/../technotes/guides/security/jsse/JSSERefGuide.html"> |
| * Java Secure Socket Extension Reference Guide </a> |
| * for information about standard algorithm names. |
| * |
| * @param provider the name of the provider. |
| * |
| * @return the new <code>TrustManagerFactory</code> object |
| * |
| * @throws NoSuchAlgorithmException if a TrustManagerFactorySpi |
| * implementation for the specified algorithm is not |
| * available from the specified provider. |
| * |
| * @throws NoSuchProviderException if the specified provider is not |
| * registered in the security provider list. |
| * |
| * @throws IllegalArgumentException if the provider name is null or empty. |
| * @throws NullPointerException if algorithm is null. |
| * |
| * @see java.security.Provider |
| */ |
| public static final TrustManagerFactory getInstance(String algorithm, |
| String provider) throws NoSuchAlgorithmException, |
| NoSuchProviderException { |
| GetInstance.Instance instance = GetInstance.getInstance |
| ("TrustManagerFactory", TrustManagerFactorySpi.class, |
| algorithm, provider); |
| return new TrustManagerFactory((TrustManagerFactorySpi)instance.impl, |
| instance.provider, algorithm); |
| } |
| |
| /** |
| * Returns a <code>TrustManagerFactory</code> object that acts as a |
| * factory for trust managers. |
| * |
| * <p> A new TrustManagerFactory object encapsulating the |
| * TrustManagerFactorySpi implementation from the specified Provider |
| * object is returned. Note that the specified Provider object |
| * does not have to be registered in the provider list. |
| * |
| * @param algorithm the standard name of the requested trust management |
| * algorithm. See the <a href= |
| * "{@docRoot}/../technotes/guides/security/jsse/JSSERefGuide.html"> |
| * Java Secure Socket Extension Reference Guide </a> |
| * for information about standard algorithm names. |
| * |
| * @param provider an instance of the provider. |
| * |
| * @return the new <code>TrustManagerFactory</code> object. |
| * |
| * @throws NoSuchAlgorithmException if a TrustManagerFactorySpi |
| * implementation for the specified algorithm is not available |
| * from the specified Provider object. |
| * |
| * @throws IllegalArgumentException if the provider is null. |
| * @throws NullPointerException if algorithm is null. |
| * |
| * @see java.security.Provider |
| */ |
| public static final TrustManagerFactory getInstance(String algorithm, |
| Provider provider) throws NoSuchAlgorithmException { |
| GetInstance.Instance instance = GetInstance.getInstance |
| ("TrustManagerFactory", TrustManagerFactorySpi.class, |
| algorithm, provider); |
| return new TrustManagerFactory((TrustManagerFactorySpi)instance.impl, |
| instance.provider, algorithm); |
| } |
| |
| /** |
| * Returns the provider of this <code>TrustManagerFactory</code> object. |
| * |
| * @return the provider of this <code>TrustManagerFactory</code> object |
| */ |
| public final Provider getProvider() { |
| return this.provider; |
| } |
| |
| |
| /** |
| * Initializes this factory with a source of certificate |
| * authorities and related trust material. |
| * <P> |
| * The provider typically uses a KeyStore as a basis for making |
| * trust decisions. |
| * <P> |
| * For more flexible initialization, please see |
| * {@link #init(ManagerFactoryParameters)}. |
| * |
| * @param ks the key store, or null |
| * @throws KeyStoreException if this operation fails |
| */ |
| public final void init(KeyStore ks) throws KeyStoreException { |
| factorySpi.engineInit(ks); |
| } |
| |
| |
| /** |
| * Initializes this factory with a source of provider-specific |
| * trust material. |
| * <P> |
| * In some cases, initialization parameters other than a keystore |
| * may be needed by a provider. Users of that particular provider |
| * are expected to pass an implementation of the appropriate |
| * <CODE>ManagerFactoryParameters</CODE> as defined by the |
| * provider. The provider can then call the specified methods in |
| * the <CODE>ManagerFactoryParameters</CODE> implementation to obtain the |
| * needed information. |
| * |
| * @param spec an implementation of a provider-specific parameter |
| * specification |
| * @throws InvalidAlgorithmParameterException if an error is |
| * encountered |
| */ |
| public final void init(ManagerFactoryParameters spec) throws |
| InvalidAlgorithmParameterException { |
| factorySpi.engineInit(spec); |
| } |
| |
| |
| /** |
| * Returns one trust manager for each type of trust material. |
| * |
| * @throws IllegalStateException if the factory is not initialized. |
| * |
| * @return the trust managers |
| */ |
| public final TrustManager[] getTrustManagers() { |
| return factorySpi.engineGetTrustManagers(); |
| } |
| } |