--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/share/classes/sun/security/ssl/X509TrustManagerImpl.java Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,296 @@
+/*
+ * Copyright 1997-2007 Sun Microsystems, Inc. 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. Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+
+package sun.security.ssl;
+
+import java.util.*;
+import java.security.*;
+import java.security.cert.*;
+
+import javax.net.ssl.*;
+
+import com.sun.net.ssl.internal.ssl.X509ExtendedTrustManager;
+
+import sun.security.validator.*;
+
+import sun.security.util.HostnameChecker;
+
+/**
+ * This class implements the SunJSSE X.509 trust manager using the internal
+ * validator API in J2SE core. The logic in this class is minimal.<p>
+ *
+ * This class supports both the Simple validation algorithm from previous
+ * JSSE versions and PKIX validation. Currently, it is not possible for the
+ * application to specify PKIX parameters other than trust anchors. This will
+ * be fixed in a future release using new APIs. When that happens, it may also
+ * make sense to separate the Simple and PKIX trust managers into separate
+ * classes.
+ *
+ * @author Andreas Sterbenz
+ * @author Xuelei Fan
+ */
+final class X509TrustManagerImpl extends X509ExtendedTrustManager
+ implements X509TrustManager {
+
+ /**
+ * Flag indicating whether to enable revocation check for the PKIX trust
+ * manager. Typically, this will only work if the PKIX implementation
+ * supports CRL distribution points as we do not manually setup CertStores.
+ */
+ private final static boolean checkRevocation =
+ Debug.getBooleanProperty("com.sun.net.ssl.checkRevocation", false);
+
+ private final String validatorType;
+
+ /**
+ * The Set of trusted X509Certificates.
+ */
+ private final Collection<X509Certificate> trustedCerts;
+
+ private final PKIXBuilderParameters pkixParams;
+
+ // note that we need separate validator for client and server due to
+ // the different extension checks. They are initialized lazily on demand.
+ private volatile Validator clientValidator, serverValidator;
+
+ private static final Debug debug = Debug.getInstance("ssl");
+
+ X509TrustManagerImpl(String validatorType, KeyStore ks)
+ throws KeyStoreException {
+ this.validatorType = validatorType;
+ this.pkixParams = null;
+ if (ks == null) {
+ trustedCerts = Collections.<X509Certificate>emptySet();
+ } else {
+ trustedCerts = KeyStores.getTrustedCerts(ks);
+ }
+ showTrustedCerts();
+ }
+
+ X509TrustManagerImpl(String validatorType, PKIXBuilderParameters params) {
+ this.validatorType = validatorType;
+ this.pkixParams = params;
+ // create server validator eagerly so that we can conveniently
+ // get the trusted certificates
+ // clients need it anyway eventually, and servers will not mind
+ // the little extra footprint
+ Validator v = getValidator(Validator.VAR_TLS_SERVER);
+ trustedCerts = v.getTrustedCertificates();
+ serverValidator = v;
+ showTrustedCerts();
+ }
+
+ private void showTrustedCerts() {
+ if (debug != null && Debug.isOn("trustmanager")) {
+ for (X509Certificate cert : trustedCerts) {
+ System.out.println("adding as trusted cert:");
+ System.out.println(" Subject: "
+ + cert.getSubjectX500Principal());
+ System.out.println(" Issuer: "
+ + cert.getIssuerX500Principal());
+ System.out.println(" Algorithm: "
+ + cert.getPublicKey().getAlgorithm()
+ + "; Serial number: 0x"
+ + cert.getSerialNumber().toString(16));
+ System.out.println(" Valid from "
+ + cert.getNotBefore() + " until "
+ + cert.getNotAfter());
+ System.out.println();
+ }
+ }
+ }
+
+ private Validator getValidator(String variant) {
+ Validator v;
+ if (pkixParams == null) {
+ v = Validator.getInstance(validatorType, variant, trustedCerts);
+ // if the PKIX validator is created from a KeyStore,
+ // disable revocation checking
+ if (v instanceof PKIXValidator) {
+ PKIXValidator pkixValidator = (PKIXValidator)v;
+ pkixValidator.getParameters().setRevocationEnabled
+ (checkRevocation);
+ }
+ } else {
+ v = Validator.getInstance(validatorType, variant, pkixParams);
+ }
+ return v;
+ }
+
+ private static X509Certificate[] validate(Validator v,
+ X509Certificate[] chain, String authType) throws CertificateException {
+ Object o = JsseJce.beginFipsProvider();
+ try {
+ return v.validate(chain, null, authType);
+ } finally {
+ JsseJce.endFipsProvider(o);
+ }
+ }
+
+ /**
+ * Returns true if the client certificate can be trusted.
+ *
+ * @param chain certificates which establish an identity for the client.
+ * Chains of arbitrary length are supported, and certificates
+ * marked internally as trusted will short-circuit signature checks.
+ * @throws IllegalArgumentException if null or zero-length chain
+ * is passed in for the chain parameter or if null or zero-length
+ * string is passed in for the authType parameter.
+ * @throws CertificateException if the certificate chain is not trusted
+ * by this TrustManager.
+ */
+ public void checkClientTrusted(X509Certificate chain[], String authType)
+ throws CertificateException {
+ if (chain == null || chain.length == 0) {
+ throw new IllegalArgumentException(
+ "null or zero-length certificate chain");
+ }
+ if (authType == null || authType.length() == 0) {
+ throw new IllegalArgumentException(
+ "null or zero-length authentication type");
+ }
+
+ // assume double checked locking with a volatile flag works
+ // (guaranteed under the new Tiger memory model)
+ Validator v = clientValidator;
+ if (v == null) {
+ synchronized (this) {
+ v = clientValidator;
+ if (v == null) {
+ v = getValidator(Validator.VAR_TLS_CLIENT);
+ clientValidator = v;
+ }
+ }
+ }
+ X509Certificate[] trustedChain = validate(v, chain, null);
+ if (debug != null && Debug.isOn("trustmanager")) {
+ System.out.println("Found trusted certificate:");
+ System.out.println(trustedChain[trustedChain.length - 1]);
+ }
+ }
+
+ /**
+ * Returns true if the server certifcate can be trusted.
+ *
+ * @param chain certificates which establish an identity for the server.
+ * Chains of arbitrary length are supported, and certificates
+ * marked internally as trusted will short-circuit signature checks.
+ * @throws IllegalArgumentException if null or zero-length chain
+ * is passed in for the chain parameter or if null or zero-length
+ * string is passed in for the authType parameter.
+ * @throws CertificateException if the certificate chain is not trusted
+ * by this TrustManager.
+ */
+ public void checkServerTrusted(X509Certificate chain[], String authType)
+ throws CertificateException {
+ if (chain == null || chain.length == 0) {
+ throw new IllegalArgumentException(
+ "null or zero-length certificate chain");
+ }
+ if (authType == null || authType.length() == 0) {
+ throw new IllegalArgumentException(
+ "null or zero-length authentication type");
+ }
+
+ // assume double checked locking with a volatile flag works
+ // (guaranteed under the new Tiger memory model)
+ Validator v = serverValidator;
+ if (v == null) {
+ synchronized (this) {
+ v = serverValidator;
+ if (v == null) {
+ v = getValidator(Validator.VAR_TLS_SERVER);
+ serverValidator = v;
+ }
+ }
+ }
+ X509Certificate[] trustedChain = validate(v, chain, authType);
+ if (debug != null && Debug.isOn("trustmanager")) {
+ System.out.println("Found trusted certificate:");
+ System.out.println(trustedChain[trustedChain.length - 1]);
+ }
+ }
+
+ /**
+ * Returns a list of CAs accepted to authenticate entities for the
+ * specified purpose.
+ *
+ * @param purpose activity for which CAs should be trusted
+ * @return list of CAs accepted for authenticating such tasks
+ */
+ public X509Certificate[] getAcceptedIssuers() {
+ X509Certificate[] certsArray = new X509Certificate[trustedCerts.size()];
+ trustedCerts.toArray(certsArray);
+ return certsArray;
+ }
+
+ /**
+ * Given the partial or complete certificate chain provided by the
+ * peer, check its identity and build a certificate path to a trusted
+ * root, return if it can be validated and is trusted for client SSL
+ * authentication based on the authentication type.
+ */
+ public void checkClientTrusted(X509Certificate[] chain, String authType,
+ String hostname, String algorithm) throws CertificateException {
+ checkClientTrusted(chain, authType);
+ checkIdentity(hostname, chain[0], algorithm);
+ }
+
+ /**
+ * Given the partial or complete certificate chain provided by the
+ * peer, check its identity and build a certificate path to a trusted
+ * root, return if it can be validated and is trusted for server SSL
+ * authentication based on the authentication type.
+ */
+ public void checkServerTrusted(X509Certificate[] chain, String authType,
+ String hostname, String algorithm) throws CertificateException {
+ checkServerTrusted(chain, authType);
+ checkIdentity(hostname, chain[0], algorithm);
+ }
+
+ // Identify the peer by its certificate and hostname.
+ private void checkIdentity(String hostname, X509Certificate cert,
+ String algorithm) throws CertificateException {
+ if (algorithm != null && algorithm.length() != 0) {
+ // if IPv6 strip off the "[]"
+ if (hostname != null && hostname.startsWith("[") &&
+ hostname.endsWith("]")) {
+ hostname = hostname.substring(1, hostname.length()-1);
+ }
+
+ if (algorithm.equalsIgnoreCase("HTTPS")) {
+ HostnameChecker.getInstance(HostnameChecker.TYPE_TLS).match(
+ hostname, cert);
+ } else if (algorithm.equalsIgnoreCase("LDAP")) {
+ HostnameChecker.getInstance(HostnameChecker.TYPE_LDAP).match(
+ hostname, cert);
+ } else {
+ throw new CertificateException(
+ "Unknown identification algorithm: " + algorithm);
+ }
+ }
+ }
+}