| /* |
| * Copyright (c) 1997, 2016, 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.io.IOException; |
| import java.net.*; |
| import java.util.List; |
| import java.util.function.BiFunction; |
| |
| /** |
| * This class extends <code>Socket</code>s and provides secure |
| * socket using protocols such as the "Secure |
| * Sockets Layer" (SSL) or IETF "Transport Layer Security" (TLS) protocols. |
| * <P> |
| * Such sockets are normal stream sockets, but they |
| * add a layer of security protections over the underlying network transport |
| * protocol, such as TCP. Those protections include: <UL> |
| * |
| * <LI> <em>Integrity Protection</em>. SSL protects against |
| * modification of messages by an active wiretapper. |
| * |
| * <LI> <em>Authentication</em>. In most modes, SSL provides |
| * peer authentication. Servers are usually authenticated, |
| * and clients may be authenticated as requested by servers. |
| * |
| * <LI> <em>Confidentiality (Privacy Protection)</em>. In most |
| * modes, SSL encrypts data being sent between client and server. |
| * This protects the confidentiality of data, so that passive |
| * wiretappers won't see sensitive data such as financial |
| * information or personal information of many kinds. |
| * |
| * </UL> |
| * |
| * <P>These kinds of protection are specified by a "cipher suite", which |
| * is a combination of cryptographic algorithms used by a given SSL connection. |
| * During the negotiation process, the two endpoints must agree on |
| * a ciphersuite that is available in both environments. |
| * If there is no such suite in common, no SSL connection can |
| * be established, and no data can be exchanged. |
| * |
| * <P> The cipher suite used is established by a negotiation process |
| * called "handshaking". The goal of this |
| * process is to create or rejoin a "session", which may protect many |
| * connections over time. After handshaking has completed, you can access |
| * session attributes by using the <em>getSession</em> method. |
| * The initial handshake on this connection can be initiated in |
| * one of three ways: <UL> |
| * |
| * <LI> calling <code>startHandshake</code> which explicitly |
| * begins handshakes, or |
| * <LI> any attempt to read or write application data on |
| * this socket causes an implicit handshake, or |
| * <LI> a call to <code>getSession</code> tries to set up a session |
| * if there is no currently valid session, and |
| * an implicit handshake is done. |
| * </UL> |
| * |
| * <P>If handshaking fails for any reason, the <code>SSLSocket</code> |
| * is closed, and no further communications can be done. |
| * |
| * <P>There are two groups of cipher suites which you will need to know |
| * about when managing cipher suites: <UL> |
| * |
| * <LI> <em>Supported</em> cipher suites: all the suites which are |
| * supported by the SSL implementation. This list is reported |
| * using <em>getSupportedCipherSuites</em>. |
| * |
| * <LI> <em>Enabled</em> cipher suites, which may be fewer |
| * than the full set of supported suites. This group is |
| * set using the <em>setEnabledCipherSuites</em> method, and |
| * queried using the <em>getEnabledCipherSuites</em> method. |
| * Initially, a default set of cipher suites will be enabled on |
| * a new socket that represents the minimum suggested configuration. |
| * |
| * </UL> |
| * |
| * <P> Implementation defaults require that only cipher |
| * suites which authenticate servers and provide confidentiality |
| * be enabled by default. |
| * Only if both sides explicitly agree to unauthenticated and/or |
| * non-private (unencrypted) communications will such a ciphersuite be |
| * selected. |
| * |
| * <P>When <code>SSLSocket</code>s are first created, no handshaking |
| * is done so that applications may first set their communication |
| * preferences: what cipher suites to use, whether the socket should be |
| * in client or server mode, etc. |
| * However, security is always provided by the time that application data |
| * is sent over the connection. |
| * |
| * <P> You may register to receive event notification of handshake |
| * completion. This involves |
| * the use of two additional classes. <em>HandshakeCompletedEvent</em> |
| * objects are passed to <em>HandshakeCompletedListener</em> instances, |
| * which are registered by users of this API. |
| * |
| * <code>SSLSocket</code>s are created by <code>SSLSocketFactory</code>s, |
| * or by <code>accept</code>ing a connection from a |
| * <code>SSLServerSocket</code>. |
| * |
| * <P>A SSL socket must choose to operate in the client or server mode. |
| * This will determine who begins the handshaking process, as well |
| * as which messages should be sent by each party. Each |
| * connection must have one client and one server, or handshaking |
| * will not progress properly. Once the initial handshaking has started, a |
| * socket can not switch between client and server modes, even when |
| * performing renegotiations. |
| * |
| * @see java.net.Socket |
| * @see SSLServerSocket |
| * @see SSLSocketFactory |
| * |
| * @since 1.4 |
| * @author David Brownell |
| */ |
| public abstract class SSLSocket extends Socket |
| { |
| /** |
| * Used only by subclasses. |
| * Constructs an uninitialized, unconnected TCP socket. |
| */ |
| protected SSLSocket() |
| { super(); } |
| |
| |
| /** |
| * Used only by subclasses. |
| * Constructs a TCP connection to a named host at a specified port. |
| * This acts as the SSL client. |
| * <p> |
| * If there is a security manager, its <code>checkConnect</code> |
| * method is called with the host address and <code>port</code> |
| * as its arguments. This could result in a SecurityException. |
| * |
| * @param host name of the host with which to connect, or |
| * <code>null</code> for the loopback address. |
| * @param port number of the server's port |
| * @throws IOException if an I/O error occurs when creating the socket |
| * @throws SecurityException if a security manager exists and its |
| * <code>checkConnect</code> method doesn't allow the operation. |
| * @throws UnknownHostException if the host is not known |
| * @throws IllegalArgumentException if the port parameter is outside the |
| * specified range of valid port values, which is between 0 and |
| * 65535, inclusive. |
| * @see SecurityManager#checkConnect |
| */ |
| protected SSLSocket(String host, int port) |
| throws IOException, UnknownHostException |
| { super(host, port); } |
| |
| |
| /** |
| * Used only by subclasses. |
| * Constructs a TCP connection to a server at a specified address |
| * and port. This acts as the SSL client. |
| * <p> |
| * If there is a security manager, its <code>checkConnect</code> |
| * method is called with the host address and <code>port</code> |
| * as its arguments. This could result in a SecurityException. |
| * |
| * @param address the server's host |
| * @param port its port |
| * @throws IOException if an I/O error occurs when creating the socket |
| * @throws SecurityException if a security manager exists and its |
| * <code>checkConnect</code> method doesn't allow the operation. |
| * @throws IllegalArgumentException if the port parameter is outside the |
| * specified range of valid port values, which is between 0 and |
| * 65535, inclusive. |
| * @throws NullPointerException if <code>address</code> is null. |
| * @see SecurityManager#checkConnect |
| */ |
| protected SSLSocket(InetAddress address, int port) |
| throws IOException |
| { super(address, port); } |
| |
| |
| /** |
| * Used only by subclasses. |
| * Constructs an SSL connection to a named host at a specified port, |
| * binding the client side of the connection a given address and port. |
| * This acts as the SSL client. |
| * <p> |
| * If there is a security manager, its <code>checkConnect</code> |
| * method is called with the host address and <code>port</code> |
| * as its arguments. This could result in a SecurityException. |
| * |
| * @param host name of the host with which to connect, or |
| * <code>null</code> for the loopback address. |
| * @param port number of the server's port |
| * @param clientAddress the client's address the socket is bound to, or |
| * <code>null</code> for the <code>anyLocal</code> address. |
| * @param clientPort the client's port the socket is bound to, or |
| * <code>zero</code> for a system selected free port. |
| * @throws IOException if an I/O error occurs when creating the socket |
| * @throws SecurityException if a security manager exists and its |
| * <code>checkConnect</code> method doesn't allow the operation. |
| * @throws UnknownHostException if the host is not known |
| * @throws IllegalArgumentException if the port parameter or clientPort |
| * parameter is outside the specified range of valid port values, |
| * which is between 0 and 65535, inclusive. |
| * @see SecurityManager#checkConnect |
| */ |
| protected SSLSocket(String host, int port, |
| InetAddress clientAddress, int clientPort) |
| throws IOException, UnknownHostException |
| { super(host, port, clientAddress, clientPort); } |
| |
| |
| /** |
| * Used only by subclasses. |
| * Constructs an SSL connection to a server at a specified address |
| * and TCP port, binding the client side of the connection a given |
| * address and port. This acts as the SSL client. |
| * <p> |
| * If there is a security manager, its <code>checkConnect</code> |
| * method is called with the host address and <code>port</code> |
| * as its arguments. This could result in a SecurityException. |
| * |
| * @param address the server's host |
| * @param port its port |
| * @param clientAddress the client's address the socket is bound to, or |
| * <code>null</code> for the <code>anyLocal</code> address. |
| * @param clientPort the client's port the socket is bound to, or |
| * <code>zero</code> for a system selected free port. |
| * @throws IOException if an I/O error occurs when creating the socket |
| * @throws SecurityException if a security manager exists and its |
| * <code>checkConnect</code> method doesn't allow the operation. |
| * @throws IllegalArgumentException if the port parameter or clientPort |
| * parameter is outside the specified range of valid port values, |
| * which is between 0 and 65535, inclusive. |
| * @throws NullPointerException if <code>address</code> is null. |
| * @see SecurityManager#checkConnect |
| */ |
| protected SSLSocket(InetAddress address, int port, |
| InetAddress clientAddress, int clientPort) |
| throws IOException |
| { super(address, port, clientAddress, clientPort); } |
| |
| |
| /** |
| * Returns the names of the cipher suites which could be enabled for use |
| * on this connection. Normally, only a subset of these will actually |
| * be enabled by default, since this list may include cipher suites which |
| * do not meet quality of service requirements for those defaults. Such |
| * cipher suites might be useful in specialized applications. |
| * <P> |
| * The returned array includes cipher suites from the list of standard |
| * cipher suite names in the <a href= |
| * "{@docRoot}/../technotes/guides/security/StandardNames.html#ciphersuites"> |
| * JSSE Cipher Suite Names</a> section of the Java Cryptography |
| * Architecture Standard Algorithm Name Documentation, and may also |
| * include other cipher suites that the provider supports. |
| * |
| * @return an array of cipher suite names |
| * @see #getEnabledCipherSuites() |
| * @see #setEnabledCipherSuites(String []) |
| */ |
| public abstract String [] getSupportedCipherSuites(); |
| |
| |
| /** |
| * Returns the names of the SSL cipher suites which are currently |
| * enabled for use on this connection. When an SSLSocket is first |
| * created, all enabled cipher suites support a minimum quality of |
| * service. Thus, in some environments this value might be empty. |
| * <P> |
| * Note that even if a suite is enabled, it may never be used. This |
| * can occur if the peer does not support it, or its use is restricted, |
| * or the requisite certificates (and private keys) for the suite are |
| * not available, or an anonymous suite is enabled but authentication |
| * is required. |
| * <P> |
| * The returned array includes cipher suites from the list of standard |
| * cipher suite names in the <a href= |
| * "{@docRoot}/../technotes/guides/security/StandardNames.html#ciphersuites"> |
| * JSSE Cipher Suite Names</a> section of the Java Cryptography |
| * Architecture Standard Algorithm Name Documentation, and may also |
| * include other cipher suites that the provider supports. |
| * |
| * @return an array of cipher suite names |
| * @see #getSupportedCipherSuites() |
| * @see #setEnabledCipherSuites(String []) |
| */ |
| public abstract String [] getEnabledCipherSuites(); |
| |
| |
| /** |
| * Sets the cipher suites enabled for use on this connection. |
| * <P> |
| * Each cipher suite in the <code>suites</code> parameter must have |
| * been listed by getSupportedCipherSuites(), or the method will |
| * fail. Following a successful call to this method, only suites |
| * listed in the <code>suites</code> parameter are enabled for use. |
| * <P> |
| * Note that the standard list of cipher suite names may be found in the |
| * <a href= |
| * "{@docRoot}/../technotes/guides/security/StandardNames.html#ciphersuites"> |
| * JSSE Cipher Suite Names</a> section of the Java Cryptography |
| * Architecture Standard Algorithm Name Documentation. Providers |
| * may support cipher suite names not found in this list or might not |
| * use the recommended name for a certain cipher suite. |
| * <P> |
| * See {@link #getEnabledCipherSuites()} for more information |
| * on why a specific ciphersuite may never be used on a connection. |
| * |
| * @param suites Names of all the cipher suites to enable |
| * @throws IllegalArgumentException when one or more of the ciphers |
| * named by the parameter is not supported, or when the |
| * parameter is null. |
| * @see #getSupportedCipherSuites() |
| * @see #getEnabledCipherSuites() |
| */ |
| public abstract void setEnabledCipherSuites(String suites []); |
| |
| |
| /** |
| * Returns the names of the protocols which could be enabled for use |
| * on an SSL connection. |
| * |
| * @return an array of protocols supported |
| */ |
| public abstract String [] getSupportedProtocols(); |
| |
| |
| /** |
| * Returns the names of the protocol versions which are currently |
| * enabled for use on this connection. |
| * <P> |
| * Note that even if a protocol is enabled, it may never be used. |
| * This can occur if the peer does not support the protocol, or its |
| * use is restricted, or there are no enabled cipher suites supported |
| * by the protocol. |
| * |
| * @see #setEnabledProtocols(String []) |
| * @return an array of protocols |
| */ |
| public abstract String [] getEnabledProtocols(); |
| |
| |
| /** |
| * Sets the protocol versions enabled for use on this connection. |
| * <P> |
| * The protocols must have been listed by |
| * <code>getSupportedProtocols()</code> as being supported. |
| * Following a successful call to this method, only protocols listed |
| * in the <code>protocols</code> parameter are enabled for use. |
| * |
| * @param protocols Names of all the protocols to enable. |
| * @throws IllegalArgumentException when one or more of |
| * the protocols named by the parameter is not supported or |
| * when the protocols parameter is null. |
| * @see #getEnabledProtocols() |
| */ |
| public abstract void setEnabledProtocols(String protocols[]); |
| |
| |
| /** |
| * Returns the SSL Session in use by this connection. These can |
| * be long lived, and frequently correspond to an entire login session |
| * for some user. The session specifies a particular cipher suite |
| * which is being actively used by all connections in that session, |
| * as well as the identities of the session's client and server. |
| * <P> |
| * This method will initiate the initial handshake if |
| * necessary and then block until the handshake has been |
| * established. |
| * <P> |
| * If an error occurs during the initial handshake, this method |
| * returns an invalid session object which reports an invalid |
| * cipher suite of "SSL_NULL_WITH_NULL_NULL". |
| * |
| * @return the <code>SSLSession</code> |
| */ |
| public abstract SSLSession getSession(); |
| |
| |
| /** |
| * Returns the {@code SSLSession} being constructed during a SSL/TLS |
| * handshake. |
| * <p> |
| * TLS protocols may negotiate parameters that are needed when using |
| * an instance of this class, but before the {@code SSLSession} has |
| * been completely initialized and made available via {@code getSession}. |
| * For example, the list of valid signature algorithms may restrict |
| * the type of certificates that can used during TrustManager |
| * decisions, or the maximum TLS fragment packet sizes can be |
| * resized to better support the network environment. |
| * <p> |
| * This method provides early access to the {@code SSLSession} being |
| * constructed. Depending on how far the handshake has progressed, |
| * some data may not yet be available for use. For example, if a |
| * remote server will be sending a Certificate chain, but that chain |
| * has yet not been processed, the {@code getPeerCertificates} |
| * method of {@code SSLSession} will throw a |
| * SSLPeerUnverifiedException. Once that chain has been processed, |
| * {@code getPeerCertificates} will return the proper value. |
| * <p> |
| * Unlike {@link #getSession()}, this method does not initiate the |
| * initial handshake and does not block until handshaking is |
| * complete. |
| * |
| * @see SSLEngine |
| * @see SSLSession |
| * @see ExtendedSSLSession |
| * @see X509ExtendedKeyManager |
| * @see X509ExtendedTrustManager |
| * |
| * @return null if this instance is not currently handshaking, or |
| * if the current handshake has not progressed far enough to |
| * create a basic SSLSession. Otherwise, this method returns the |
| * {@code SSLSession} currently being negotiated. |
| * @throws UnsupportedOperationException if the underlying provider |
| * does not implement the operation. |
| * |
| * @since 1.7 |
| */ |
| public SSLSession getHandshakeSession() { |
| throw new UnsupportedOperationException(); |
| } |
| |
| |
| /** |
| * Registers an event listener to receive notifications that an |
| * SSL handshake has completed on this connection. |
| * |
| * @param listener the HandShake Completed event listener |
| * @see #startHandshake() |
| * @see #removeHandshakeCompletedListener(HandshakeCompletedListener) |
| * @throws IllegalArgumentException if the argument is null. |
| */ |
| public abstract void addHandshakeCompletedListener( |
| HandshakeCompletedListener listener); |
| |
| |
| /** |
| * Removes a previously registered handshake completion listener. |
| * |
| * @param listener the HandShake Completed event listener |
| * @throws IllegalArgumentException if the listener is not registered, |
| * or the argument is null. |
| * @see #addHandshakeCompletedListener(HandshakeCompletedListener) |
| */ |
| public abstract void removeHandshakeCompletedListener( |
| HandshakeCompletedListener listener); |
| |
| |
| /** |
| * Starts an SSL handshake on this connection. Common reasons include |
| * a need to use new encryption keys, to change cipher suites, or to |
| * initiate a new session. To force complete reauthentication, the |
| * current session could be invalidated before starting this handshake. |
| * |
| * <P> If data has already been sent on the connection, it continues |
| * to flow during this handshake. When the handshake completes, this |
| * will be signaled with an event. |
| * |
| * This method is synchronous for the initial handshake on a connection |
| * and returns when the negotiated handshake is complete. Some |
| * protocols may not support multiple handshakes on an existing socket |
| * and may throw an IOException. |
| * |
| * @throws IOException on a network level error |
| * @see #addHandshakeCompletedListener(HandshakeCompletedListener) |
| */ |
| public abstract void startHandshake() throws IOException; |
| |
| |
| /** |
| * Configures the socket to use client (or server) mode when |
| * handshaking. |
| * <P> |
| * This method must be called before any handshaking occurs. |
| * Once handshaking has begun, the mode can not be reset for the |
| * life of this socket. |
| * <P> |
| * Servers normally authenticate themselves, and clients |
| * are not required to do so. |
| * |
| * @param mode true if the socket should start its handshaking |
| * in "client" mode |
| * @throws IllegalArgumentException if a mode change is attempted |
| * after the initial handshake has begun. |
| * @see #getUseClientMode() |
| */ |
| public abstract void setUseClientMode(boolean mode); |
| |
| |
| /** |
| * Returns true if the socket is set to use client mode when |
| * handshaking. |
| * |
| * @return true if the socket should do handshaking |
| * in "client" mode |
| * @see #setUseClientMode(boolean) |
| */ |
| public abstract boolean getUseClientMode(); |
| |
| |
| /** |
| * Configures the socket to <i>require</i> client authentication. This |
| * option is only useful for sockets in the server mode. |
| * <P> |
| * A socket's client authentication setting is one of the following: |
| * <ul> |
| * <li> client authentication required |
| * <li> client authentication requested |
| * <li> no client authentication desired |
| * </ul> |
| * <P> |
| * Unlike {@link #setWantClientAuth(boolean)}, if this option is set and |
| * the client chooses not to provide authentication information |
| * about itself, <i>the negotiations will stop and the connection |
| * will be dropped</i>. |
| * <P> |
| * Calling this method overrides any previous setting made by |
| * this method or {@link #setWantClientAuth(boolean)}. |
| * |
| * @param need set to true if client authentication is required, |
| * or false if no client authentication is desired. |
| * @see #getNeedClientAuth() |
| * @see #setWantClientAuth(boolean) |
| * @see #getWantClientAuth() |
| * @see #setUseClientMode(boolean) |
| */ |
| public abstract void setNeedClientAuth(boolean need); |
| |
| |
| /** |
| * Returns true if the socket will <i>require</i> client authentication. |
| * This option is only useful to sockets in the server mode. |
| * |
| * @return true if client authentication is required, |
| * or false if no client authentication is desired. |
| * @see #setNeedClientAuth(boolean) |
| * @see #setWantClientAuth(boolean) |
| * @see #getWantClientAuth() |
| * @see #setUseClientMode(boolean) |
| */ |
| public abstract boolean getNeedClientAuth(); |
| |
| |
| /** |
| * Configures the socket to <i>request</i> client authentication. |
| * This option is only useful for sockets in the server mode. |
| * <P> |
| * A socket's client authentication setting is one of the following: |
| * <ul> |
| * <li> client authentication required |
| * <li> client authentication requested |
| * <li> no client authentication desired |
| * </ul> |
| * <P> |
| * Unlike {@link #setNeedClientAuth(boolean)}, if this option is set and |
| * the client chooses not to provide authentication information |
| * about itself, <i>the negotiations will continue</i>. |
| * <P> |
| * Calling this method overrides any previous setting made by |
| * this method or {@link #setNeedClientAuth(boolean)}. |
| * |
| * @param want set to true if client authentication is requested, |
| * or false if no client authentication is desired. |
| * @see #getWantClientAuth() |
| * @see #setNeedClientAuth(boolean) |
| * @see #getNeedClientAuth() |
| * @see #setUseClientMode(boolean) |
| */ |
| public abstract void setWantClientAuth(boolean want); |
| |
| |
| /** |
| * Returns true if the socket will <i>request</i> client authentication. |
| * This option is only useful for sockets in the server mode. |
| * |
| * @return true if client authentication is requested, |
| * or false if no client authentication is desired. |
| * @see #setNeedClientAuth(boolean) |
| * @see #getNeedClientAuth() |
| * @see #setWantClientAuth(boolean) |
| * @see #setUseClientMode(boolean) |
| */ |
| public abstract boolean getWantClientAuth(); |
| |
| |
| /** |
| * Controls whether new SSL sessions may be established by this socket. |
| * If session creations are not allowed, and there are no |
| * existing sessions to resume, there will be no successful |
| * handshaking. |
| * |
| * @param flag true indicates that sessions may be created; this |
| * is the default. false indicates that an existing session |
| * must be resumed |
| * @see #getEnableSessionCreation() |
| */ |
| public abstract void setEnableSessionCreation(boolean flag); |
| |
| |
| /** |
| * Returns true if new SSL sessions may be established by this socket. |
| * |
| * @return true indicates that sessions may be created; this |
| * is the default. false indicates that an existing session |
| * must be resumed |
| * @see #setEnableSessionCreation(boolean) |
| */ |
| public abstract boolean getEnableSessionCreation(); |
| |
| /** |
| * Returns the SSLParameters in effect for this SSLSocket. |
| * The ciphersuites and protocols of the returned SSLParameters |
| * are always non-null. |
| * |
| * @return the SSLParameters in effect for this SSLSocket. |
| * @since 1.6 |
| */ |
| public SSLParameters getSSLParameters() { |
| SSLParameters params = new SSLParameters(); |
| params.setCipherSuites(getEnabledCipherSuites()); |
| params.setProtocols(getEnabledProtocols()); |
| if (getNeedClientAuth()) { |
| params.setNeedClientAuth(true); |
| } else if (getWantClientAuth()) { |
| params.setWantClientAuth(true); |
| } |
| return params; |
| } |
| |
| /** |
| * Applies SSLParameters to this socket. |
| * |
| * <p>This means: |
| * <ul> |
| * <li>If {@code params.getCipherSuites()} is non-null, |
| * {@code setEnabledCipherSuites()} is called with that value.</li> |
| * <li>If {@code params.getProtocols()} is non-null, |
| * {@code setEnabledProtocols()} is called with that value.</li> |
| * <li>If {@code params.getNeedClientAuth()} or |
| * {@code params.getWantClientAuth()} return {@code true}, |
| * {@code setNeedClientAuth(true)} and |
| * {@code setWantClientAuth(true)} are called, respectively; |
| * otherwise {@code setWantClientAuth(false)} is called.</li> |
| * <li>If {@code params.getServerNames()} is non-null, the socket will |
| * configure its server names with that value.</li> |
| * <li>If {@code params.getSNIMatchers()} is non-null, the socket will |
| * configure its SNI matchers with that value.</li> |
| * </ul> |
| * |
| * @param params the parameters |
| * @throws IllegalArgumentException if the setEnabledCipherSuites() or |
| * the setEnabledProtocols() call fails |
| * @since 1.6 |
| */ |
| public void setSSLParameters(SSLParameters params) { |
| String[] s; |
| s = params.getCipherSuites(); |
| if (s != null) { |
| setEnabledCipherSuites(s); |
| } |
| s = params.getProtocols(); |
| if (s != null) { |
| setEnabledProtocols(s); |
| } |
| if (params.getNeedClientAuth()) { |
| setNeedClientAuth(true); |
| } else if (params.getWantClientAuth()) { |
| setWantClientAuth(true); |
| } else { |
| setWantClientAuth(false); |
| } |
| } |
| |
| /** |
| * Returns the most recent application protocol value negotiated for this |
| * connection. |
| * <p> |
| * If supported by the underlying SSL/TLS/DTLS implementation, |
| * application name negotiation mechanisms such as <a |
| * href="http://www.ietf.org/rfc/rfc7301.txt"> RFC 7301 </a>, the |
| * Application-Layer Protocol Negotiation (ALPN), can negotiate |
| * application-level values between peers. |
| * <p> |
| * @implSpec |
| * The implementation in this class throws |
| * {@code UnsupportedOperationException} and performs no other action. |
| * |
| * @return null if it has not yet been determined if application |
| * protocols might be used for this connection, an empty |
| * {@code String} if application protocols values will not |
| * be used, or a non-empty application protocol {@code String} |
| * if a value was successfully negotiated. |
| * @throws UnsupportedOperationException if the underlying provider |
| * does not implement the operation. |
| * @since 9 |
| */ |
| public String getApplicationProtocol() { |
| throw new UnsupportedOperationException(); |
| } |
| |
| /** |
| * Returns the application protocol value negotiated on a SSL/TLS |
| * handshake currently in progress. |
| * <p> |
| * Like {@link #getHandshakeSession()}, |
| * a connection may be in the middle of a handshake. The |
| * application protocol may or may not yet be available. |
| * <p> |
| * @implSpec |
| * The implementation in this class throws |
| * {@code UnsupportedOperationException} and performs no other action. |
| * |
| * @return null if it has not yet been determined if application |
| * protocols might be used for this handshake, an empty |
| * {@code String} if application protocols values will not |
| * be used, or a non-empty application protocol {@code String} |
| * if a value was successfully negotiated. |
| * @throws UnsupportedOperationException if the underlying provider |
| * does not implement the operation. |
| * @since 9 |
| */ |
| public String getHandshakeApplicationProtocol() { |
| throw new UnsupportedOperationException(); |
| } |
| |
| |
| /** |
| * Registers a callback function that selects an application protocol |
| * value for a SSL/TLS/DTLS handshake. |
| * The function overrides any values supplied using |
| * {@link SSLParameters#setApplicationProtocols |
| * SSLParameters.setApplicationProtocols} and it supports the following |
| * type parameters: |
| * <blockquote> |
| * <dl> |
| * <dt> {@code SSLSocket} |
| * <dd> The function's first argument allows the current {@code SSLSocket} |
| * to be inspected, including the handshake session and configuration |
| * settings. |
| * <dt> {@code List<String>} |
| * <dd> The function's second argument lists the application protocol names |
| * advertised by the TLS peer. |
| * <dt> {@code String} |
| * <dd> The function's result is an application protocol name, or null to |
| * indicate that none of the advertised names are acceptable. |
| * If the return value is an empty {@code String} then application |
| * protocol indications will not be used. |
| * If the return value is null (no value chosen) or is a value that |
| * was not advertised by the peer, the underlying protocol will |
| * determine what action to take. (For example, ALPN will send a |
| * "no_application_protocol" alert and terminate the connection.) |
| * </dl> |
| * </blockquote> |
| * |
| * For example, the following call registers a callback function that |
| * examines the TLS handshake parameters and selects an application protocol |
| * name: |
| * <pre>{@code |
| * serverSocket.setHandshakeApplicationProtocolSelector( |
| * (serverSocket, clientProtocols) -> { |
| * SSLSession session = serverSocket.getHandshakeSession(); |
| * return chooseApplicationProtocol( |
| * serverSocket, |
| * clientProtocols, |
| * session.getProtocol(), |
| * session.getCipherSuite()); |
| * }); |
| * }</pre> |
| * |
| * @apiNote |
| * This method should be called by TLS server applications before the TLS |
| * handshake begins. Also, this {@code SSLSocket} should be configured with |
| * parameters that are compatible with the application protocol selected by |
| * the callback function. For example, enabling a poor choice of cipher |
| * suites could result in no suitable application protocol. |
| * See {@link SSLParameters}. |
| * |
| * @implSpec |
| * The implementation in this class throws |
| * {@code UnsupportedOperationException} and performs no other action. |
| * |
| * @param selector the callback function, or null to de-register. |
| * @throws UnsupportedOperationException if the underlying provider |
| * does not implement the operation. |
| * @since 9 |
| */ |
| public void setHandshakeApplicationProtocolSelector( |
| BiFunction<SSLSocket, List<String>, String> selector) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| /** |
| * Retrieves the callback function that selects an application protocol |
| * value during a SSL/TLS/DTLS handshake. |
| * See {@link #setHandshakeApplicationProtocolSelector |
| * setHandshakeApplicationProtocolSelector} |
| * for the function's type parameters. |
| * |
| * @implSpec |
| * The implementation in this class throws |
| * {@code UnsupportedOperationException} and performs no other action. |
| * |
| * @return the callback function, or null if none has been set. |
| * @throws UnsupportedOperationException if the underlying provider |
| * does not implement the operation. |
| * @since 9 |
| */ |
| public BiFunction<SSLSocket, List<String>, String> |
| getHandshakeApplicationProtocolSelector() { |
| throw new UnsupportedOperationException(); |
| } |
| } |