author | xuelei |
Tue, 18 Sep 2012 06:51:02 -0700 | |
changeset 13815 | 2de30ecf335e |
parent 9246 | c459f79af46b |
child 14194 | 971f46db533d |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 1996, 2012, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package sun.security.ssl; |
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import java.io.IOException; |
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import java.net.InetAddress; |
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import java.net.Socket; |
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import java.net.ServerSocket; |
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import java.security.AlgorithmConstraints; |
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import java.util.*; |
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import javax.net.ServerSocketFactory; |
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import javax.net.ssl.SSLException; |
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import javax.net.ssl.SSLServerSocket; |
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import javax.net.ssl.SSLParameters; |
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/** |
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* This class provides a simple way for servers to support conventional |
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* use of the Secure Sockets Layer (SSL). Application code uses an |
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* SSLServerSocketImpl exactly like it uses a regular TCP ServerSocket; the |
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* difference is that the connections established are secured using SSL. |
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* |
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* <P> Also, the constructors take an explicit authentication context |
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* parameter, giving flexibility with respect to how the server socket |
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* authenticates itself. That policy flexibility is not exposed through |
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* the standard SSLServerSocketFactory API. |
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* |
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* <P> System security defaults prevent server sockets from accepting |
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* connections if they the authentication context has not been given |
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* a certificate chain and its matching private key. If the clients |
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* of your application support "anonymous" cipher suites, you may be |
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* able to configure a server socket to accept those suites. |
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* |
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* @see SSLSocketImpl |
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* @see SSLServerSocketFactoryImpl |
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* |
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* @author David Brownell |
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*/ |
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final |
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class SSLServerSocketImpl extends SSLServerSocket |
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{ |
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private SSLContextImpl sslContext; |
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/* Do newly accepted connections require clients to authenticate? */ |
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private byte doClientAuth = SSLEngineImpl.clauth_none; |
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/* Do new connections created here use the "server" mode of SSL? */ |
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private boolean useServerMode = true; |
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/* Can new connections created establish new sessions? */ |
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private boolean enableSessionCreation = true; |
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/* what cipher suites to use by default */ |
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private CipherSuiteList enabledCipherSuites = null; |
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/* which protocol to use by default */ |
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private ProtocolList enabledProtocols = null; |
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/* could enabledCipherSuites ever complete handshaking? */ |
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private boolean checkedEnabled = false; |
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// the endpoint identification protocol to use by default |
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private String identificationProtocol = null; |
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// The cryptographic algorithm constraints |
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private AlgorithmConstraints algorithmConstraints = null; |
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/** |
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* Create an SSL server socket on a port, using a non-default |
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* authentication context and a specified connection backlog. |
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* |
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* @param port the port on which to listen |
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* @param backlog how many connections may be pending before |
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* the system should start rejecting new requests |
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* @param context authentication context for this server |
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*/ |
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SSLServerSocketImpl(int port, int backlog, SSLContextImpl context) |
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throws IOException, SSLException |
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{ |
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super(port, backlog); |
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initServer(context); |
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} |
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/** |
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* Create an SSL server socket on a port, using a specified |
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* authentication context and a specified backlog of connections |
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* as well as a particular specified network interface. This |
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* constructor is used on multihomed hosts, such as those used |
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* for firewalls or as routers, to control through which interface |
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* a network service is provided. |
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* |
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* @param port the port on which to listen |
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* @param backlog how many connections may be pending before |
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* the system should start rejecting new requests |
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* @param address the address of the network interface through |
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* which connections will be accepted |
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* @param context authentication context for this server |
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*/ |
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SSLServerSocketImpl( |
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int port, |
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int backlog, |
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InetAddress address, |
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SSLContextImpl context) |
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throws IOException |
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{ |
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super(port, backlog, address); |
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initServer(context); |
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} |
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/** |
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* Creates an unbound server socket. |
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*/ |
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SSLServerSocketImpl(SSLContextImpl context) throws IOException { |
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super(); |
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initServer(context); |
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} |
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/** |
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* Initializes the server socket. |
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*/ |
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private void initServer(SSLContextImpl context) throws SSLException { |
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if (context == null) { |
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throw new SSLException("No Authentication context given"); |
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} |
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sslContext = context; |
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9246
c459f79af46b
6976117: SSLContext.getInstance("TLSv1.1") returns SSLEngines/SSLSockets without TLSv1.1 enabled
xuelei
parents:
7043
diff
changeset
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enabledCipherSuites = sslContext.getDefaultCipherSuiteList(true); |
c459f79af46b
6976117: SSLContext.getInstance("TLSv1.1") returns SSLEngines/SSLSockets without TLSv1.1 enabled
xuelei
parents:
7043
diff
changeset
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enabledProtocols = sslContext.getDefaultProtocolList(true); |
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} |
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/** |
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* Returns the names of the cipher suites which could be enabled for use |
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* on an SSL connection. Normally, only a subset of these will actually |
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* be enabled by default, since this list may include cipher suites which |
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* do not support the mutual authentication of servers and clients, or |
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* which do not protect data confidentiality. Servers may also need |
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* certain kinds of certificates to use certain cipher suites. |
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* |
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* @return an array of cipher suite names |
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*/ |
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public String[] getSupportedCipherSuites() { |
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return sslContext.getSupportedCipherSuiteList().toStringArray(); |
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} |
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/** |
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* Returns the list of cipher suites which are currently enabled |
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* for use by newly accepted connections. A null return indicates |
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* that the system defaults are in effect. |
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*/ |
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synchronized public String[] getEnabledCipherSuites() { |
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return enabledCipherSuites.toStringArray(); |
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} |
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/** |
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* Controls which particular SSL cipher suites are enabled for use |
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* by accepted connections. |
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* |
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* @param suites Names of all the cipher suites to enable; null |
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* means to accept system defaults. |
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*/ |
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synchronized public void setEnabledCipherSuites(String[] suites) { |
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enabledCipherSuites = new CipherSuiteList(suites); |
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checkedEnabled = false; |
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} |
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public String[] getSupportedProtocols() { |
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c459f79af46b
6976117: SSLContext.getInstance("TLSv1.1") returns SSLEngines/SSLSockets without TLSv1.1 enabled
xuelei
parents:
7043
diff
changeset
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return sslContext.getSuportedProtocolList().toStringArray(); |
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} |
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/** |
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* Controls which protocols are enabled for use. |
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* The protocols must have been listed by |
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* getSupportedProtocols() as being supported. |
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* |
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* @param protocols protocols to enable. |
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* @exception IllegalArgumentException when one of the protocols |
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* named by the parameter is not supported. |
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*/ |
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synchronized public void setEnabledProtocols(String[] protocols) { |
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enabledProtocols = new ProtocolList(protocols); |
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} |
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synchronized public String[] getEnabledProtocols() { |
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return enabledProtocols.toStringArray(); |
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} |
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/** |
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* Controls whether the connections which are accepted must include |
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* client authentication. |
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*/ |
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public void setNeedClientAuth(boolean flag) { |
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doClientAuth = (flag ? |
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SSLEngineImpl.clauth_required : SSLEngineImpl.clauth_none); |
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} |
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public boolean getNeedClientAuth() { |
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return (doClientAuth == SSLEngineImpl.clauth_required); |
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} |
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/** |
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* Controls whether the connections which are accepted should request |
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* client authentication. |
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*/ |
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public void setWantClientAuth(boolean flag) { |
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doClientAuth = (flag ? |
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SSLEngineImpl.clauth_requested : SSLEngineImpl.clauth_none); |
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} |
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public boolean getWantClientAuth() { |
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return (doClientAuth == SSLEngineImpl.clauth_requested); |
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} |
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/** |
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* Makes the returned sockets act in SSL "client" mode, not the usual |
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* server mode. The canonical example of why this is needed is for |
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* FTP clients, which accept connections from servers and should be |
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* rejoining the already-negotiated SSL connection. |
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*/ |
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public void setUseClientMode(boolean flag) { |
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/* |
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* If we need to change the socket mode and the enabled |
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* protocols haven't specifically been set by the user, |
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* change them to the corresponding default ones. |
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*/ |
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if (useServerMode != (!flag) && |
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9246
c459f79af46b
6976117: SSLContext.getInstance("TLSv1.1") returns SSLEngines/SSLSockets without TLSv1.1 enabled
xuelei
parents:
7043
diff
changeset
|
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sslContext.isDefaultProtocolList(enabledProtocols)) { |
c459f79af46b
6976117: SSLContext.getInstance("TLSv1.1") returns SSLEngines/SSLSockets without TLSv1.1 enabled
xuelei
parents:
7043
diff
changeset
|
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enabledProtocols = sslContext.getDefaultProtocolList(!flag); |
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} |
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useServerMode = !flag; |
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} |
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public boolean getUseClientMode() { |
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return !useServerMode; |
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} |
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/** |
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* Controls whether new connections may cause creation of new SSL |
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* sessions. |
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*/ |
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public void setEnableSessionCreation(boolean flag) { |
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enableSessionCreation = flag; |
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} |
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/** |
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* Returns true if new connections may cause creation of new SSL |
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* sessions. |
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*/ |
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public boolean getEnableSessionCreation() { |
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return enableSessionCreation; |
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} |
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/** |
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* Returns the SSLParameters in effect for newly accepted connections. |
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*/ |
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synchronized public SSLParameters getSSLParameters() { |
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SSLParameters params = super.getSSLParameters(); |
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// the super implementation does not handle the following parameters |
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params.setEndpointIdentificationAlgorithm(identificationProtocol); |
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params.setAlgorithmConstraints(algorithmConstraints); |
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return params; |
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} |
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/** |
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* Applies SSLParameters to newly accepted connections. |
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*/ |
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synchronized public void setSSLParameters(SSLParameters params) { |
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super.setSSLParameters(params); |
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// the super implementation does not handle the following parameters |
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identificationProtocol = params.getEndpointIdentificationAlgorithm(); |
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algorithmConstraints = params.getAlgorithmConstraints(); |
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} |
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/** |
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* Accept a new SSL connection. This server identifies itself with |
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* information provided in the authentication context which was |
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* presented during construction. |
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*/ |
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public Socket accept() throws IOException { |
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SSLSocketImpl s = new SSLSocketImpl(sslContext, useServerMode, |
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enabledCipherSuites, doClientAuth, enableSessionCreation, |
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enabledProtocols, identificationProtocol, algorithmConstraints); |
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implAccept(s); |
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s.doneConnect(); |
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return s; |
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} |
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/** |
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* Provides a brief description of this SSL socket. |
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*/ |
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public String toString() { |
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return "[SSL: "+ super.toString() + "]"; |
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} |
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} |