/** Closes the write half of the stream. */
@Override
public void closeWrite() throws IOException {
if (_isCloseWrite) {
return;
}
_isCloseWrite = true;
// OutputStream os = _os;
// _os = null;
boolean isShutdownOutput = false;
// since the output stream is opened lazily, we might
// need to open it
if (_s != null) {
try {
_s.shutdownOutput();
isShutdownOutput = true;
} catch (UnsupportedOperationException e) {
log.log(Level.FINEST, e.toString(), e);
} catch (Exception e) {
log.finer(e.toString());
log.log(Level.FINEST, e.toString(), e);
}
}
/*
// SSLSocket doesn't support shutdownOutput()
if (! isShutdownOutput && os != null) {
os.close();
}
*/
}
public static void main(String[] args) throws Exception {
ServerSocketChannel ssc = ServerSocketChannel.open().bind(new InetSocketAddress(0));
try {
InetAddress lh = InetAddress.getLocalHost();
int port = ((InetSocketAddress) (ssc.getLocalAddress())).getPort();
SocketAddress remote = new InetSocketAddress(lh, port);
// Test SocketChannel shutdownXXX
SocketChannel sc;
sc = SocketChannel.open(remote);
try {
acceptAndReset(ssc);
sc.shutdownInput();
sc.shutdownOutput();
} finally {
sc.close();
}
// Test Socket adapter shutdownXXX and isShutdownInput
sc = SocketChannel.open(remote);
try {
acceptAndReset(ssc);
boolean before = sc.socket().isInputShutdown();
sc.socket().shutdownInput();
boolean after = sc.socket().isInputShutdown();
if (before || !after) throw new RuntimeException("Before and after test failed");
sc.socket().shutdownOutput();
} finally {
sc.close();
}
} finally {
ssc.close();
}
}
@Test
public void testGentleCloseDuringHandshake() throws Exception {
InetSocketAddress address = startServer(version, null);
SslContextFactory sslContextFactory = newSslContextFactory();
sslContextFactory.start();
SSLEngine sslEngine = sslContextFactory.newSSLEngine(address);
sslEngine.setUseClientMode(true);
NextProtoNego.put(
sslEngine,
new NextProtoNego.ClientProvider() {
@Override
public boolean supports() {
return true;
}
@Override
public void unsupported() {}
@Override
public String selectProtocol(List<String> protocols) {
return null;
}
});
sslEngine.beginHandshake();
ByteBuffer encrypted = ByteBuffer.allocate(sslEngine.getSession().getPacketBufferSize());
sslEngine.wrap(BufferUtil.EMPTY_BUFFER, encrypted);
encrypted.flip();
try (SocketChannel channel = SocketChannel.open(address)) {
// Send ClientHello, immediately followed by TLS Close Alert and then by FIN
channel.write(encrypted);
sslEngine.closeOutbound();
encrypted.clear();
sslEngine.wrap(BufferUtil.EMPTY_BUFFER, encrypted);
encrypted.flip();
channel.write(encrypted);
channel.shutdownOutput();
// Read ServerHello from server
encrypted.clear();
int read = channel.read(encrypted);
encrypted.flip();
Assert.assertTrue(read > 0);
// Cannot decrypt, as the SSLEngine has been already closed
// Now if we read more, we should either read the TLS Close Alert, or directly -1
encrypted.clear();
read = channel.read(encrypted);
// Sending a TLS Close Alert during handshake results in an exception when
// unwrapping that the server react to by closing the connection abruptly.
Assert.assertTrue(read < 0);
}
}
@Test
public void testAbruptCloseDuringHandshake() throws Exception {
InetSocketAddress address = startServer(version, null);
SslContextFactory sslContextFactory = newSslContextFactory();
sslContextFactory.start();
SSLEngine sslEngine = sslContextFactory.newSSLEngine(address);
sslEngine.setUseClientMode(true);
NextProtoNego.put(
sslEngine,
new NextProtoNego.ClientProvider() {
@Override
public boolean supports() {
return true;
}
@Override
public void unsupported() {}
@Override
public String selectProtocol(List<String> protocols) {
return null;
}
});
sslEngine.beginHandshake();
ByteBuffer encrypted = ByteBuffer.allocate(sslEngine.getSession().getPacketBufferSize());
sslEngine.wrap(BufferUtil.EMPTY_BUFFER, encrypted);
encrypted.flip();
try (SocketChannel channel = SocketChannel.open(address)) {
// Send ClientHello, immediately followed by FIN (no TLS Close Alert)
channel.write(encrypted);
channel.shutdownOutput();
// Read ServerHello from server
encrypted.clear();
int read = channel.read(encrypted);
encrypted.flip();
Assert.assertTrue(read > 0);
ByteBuffer decrypted = ByteBuffer.allocate(sslEngine.getSession().getApplicationBufferSize());
sslEngine.unwrap(encrypted, decrypted);
// Now if we read more, we should either read the TLS Close Alert, or directly -1
encrypted.clear();
read = channel.read(encrypted);
// Since we have close the connection abruptly, the server also does so
Assert.assertTrue(read < 0);
}
}
@Override
public SocketChannel shutdownOutput() throws IOException {
socketChannel = socketChannel.shutdownOutput();
return this;
}