JDK8/Java8源码在线阅读

/*
 * Copyright (c) 2003, 2004, 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 java.net;

import java.security.cert.Certificate;
import javax.net.ssl.SSLPeerUnverifiedException;
import java.security.Principal;
import java.util.List;

/**
 * Represents a cache response originally retrieved through secure
 * means, such as TLS.
 *
 * @since 1.5
 */
public abstract class SecureCacheResponse extends CacheResponse {
    /**
     * Returns the cipher suite in use on the original connection that
     * retrieved the network resource.
     *
     * @return a string representing the cipher suite
     */
    public abstract String getCipherSuite();

    /**
     * Returns the certificate chain that were sent to the server during
     * handshaking of the original connection that retrieved the
     * network resource.  Note: This method is useful only
     * when using certificate-based cipher suites.
     *
     * @return an immutable List of Certificate representing the
     *           certificate chain that was sent to the server. If no
     *           certificate chain was sent, null will be returned.
     * @see #getLocalPrincipal()
     */
    public abstract List<Certificate> getLocalCertificateChain();

    /**
     * Returns the server's certificate chain, which was established as
     * part of defining the session in the original connection that
     * retrieved the network resource, from cache.  Note: This method
     * can be used only when using certificate-based cipher suites;
     * using it with non-certificate-based cipher suites, such as
     * Kerberos, will throw an SSLPeerUnverifiedException.
     *
     * @return an immutable List of Certificate representing the server's
     *         certificate chain.
     * @throws SSLPeerUnverifiedException if the peer is not verified.
     * @see #getPeerPrincipal()
     */
    public abstract List<Certificate> getServerCertificateChain()
        throws SSLPeerUnverifiedException;

    /**
     * Returns the server's principal which was established as part of
     * defining the session during the original connection that
     * retrieved the network resource.
     *
     * @return the server's principal. Returns an X500Principal of the
     * end-entity certiticate for X509-based cipher suites, and
     * KerberosPrincipal for Kerberos cipher suites.
     *
     * @throws SSLPeerUnverifiedException if the peer was not verified.
     *
     * @see #getServerCertificateChain()
     * @see #getLocalPrincipal()
     */
     public abstract Principal getPeerPrincipal()
             throws SSLPeerUnverifiedException;

    /**
      * Returns the principal that was sent to the server during
      * handshaking in the original connection that retrieved the

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