org.xnio.ssl.JsseSslStreamSinkConduit Maven / Gradle / Ivy
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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including
all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and
JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up
with different versions on classes on the class path).
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/*
* JBoss, Home of Professional Open Source
*
* Copyright 2013 Red Hat, Inc. and/or its affiliates.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.xnio.ssl;
import static org.xnio._private.Messages.msg;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.nio.channels.FileChannel;
import java.util.concurrent.TimeUnit;
import org.xnio.channels.StreamSourceChannel;
import org.xnio.conduits.AbstractStreamSinkConduit;
import org.xnio.conduits.ConduitWritableByteChannel;
import org.xnio.conduits.Conduits;
import org.xnio.conduits.StreamSinkConduit;
/**
* Jsse SSL source conduit implementation based on {@link JsseSslConduitEngine}.
*
* @author Flavia Rainone
*
*/
final class JsseSslStreamSinkConduit extends AbstractStreamSinkConduit {
private final JsseSslConduitEngine sslEngine;
private volatile boolean tls;
protected JsseSslStreamSinkConduit(StreamSinkConduit next, JsseSslConduitEngine sslEngine, boolean tls) {
super(next);
if (sslEngine == null) {
throw msg.nullParameter("sslEngine");
}
this.sslEngine = sslEngine;
this.tls = tls;
}
public void enableTls() {
tls = true;
if (isWriteResumed()) {
wakeupWrites();
}
}
@Override
public long transferFrom(final FileChannel src, final long position, final long count) throws IOException {
return src.transferTo(position, count, new ConduitWritableByteChannel(this));
}
@Override
public long transferFrom(final StreamSourceChannel source, final long count, final ByteBuffer throughBuffer) throws IOException {
return Conduits.transfer(source, count, throughBuffer, this);
}
@Override
public int write(ByteBuffer src) throws IOException {
return write(src, false);
}
@Override
public long write(ByteBuffer[] srcs, int offs, int len) throws IOException {
return write(srcs, offs, len, false);
}
@Override
public int writeFinal(ByteBuffer src) throws IOException {
return write(src, true);
}
@Override
public long writeFinal(ByteBuffer[] srcs, int offset, int length) throws IOException {
return write(srcs, offset, length, true);
}
private int write(ByteBuffer src, boolean writeFinal) throws IOException {
if (!tls) {
if(writeFinal) {
return next.writeFinal(src);
} else {
return next.write(src);
}
}
final int wrappedBytes = sslEngine.wrap(src);
if (wrappedBytes > 0) {
writeWrappedBuffer(writeFinal);
}
return wrappedBytes;
}
private long write(ByteBuffer[] srcs, int offs, int len, boolean writeFinal) throws IOException {
if (!tls) {
if(writeFinal) {
return super.writeFinal(srcs, offs, len);
} else {
return super.write(srcs, offs, len);
}
}
final long wrappedBytes = sslEngine.wrap(srcs, offs, len);
if (wrappedBytes > 0) {
writeWrappedBuffer(writeFinal);
}
return wrappedBytes;
}
@Override
public void resumeWrites() {
if (tls && sslEngine.isFirstHandshake()) {
super.wakeupWrites();
} else {
super.resumeWrites();
}
}
@Override
public void terminateWrites() throws IOException {
if (!tls) {
super.terminateWrites();
return;
}
try {
sslEngine.closeOutbound();
flush();
} catch (IOException e) {
try {
super.truncateWrites();
} catch (IOException e2) {
e2.addSuppressed(e);
throw e2;
}
throw e;
}
}
@Override
public void awaitWritable() throws IOException {
if (tls) {
sslEngine.awaitCanWrap();
}
super.awaitWritable();
}
@Override
public void awaitWritable(long time, TimeUnit timeUnit) throws IOException {
if (!tls) {
super.awaitWritable(time, timeUnit);
return;
}
long duration = timeUnit.toNanos(time);
long awaited = System.nanoTime();
sslEngine.awaitCanWrap(time, timeUnit);
awaited = System.nanoTime() - awaited;
if (awaited > duration) {
return;
}
super.awaitWritable(duration - awaited, TimeUnit.NANOSECONDS);
}
@Override
public void truncateWrites() throws IOException {
if (tls) try {
sslEngine.closeOutbound();
} finally {
try {
super.truncateWrites();
} catch (IOException ignored) {
}
}
super.truncateWrites();
}
@Override
public boolean flush() throws IOException {
if (!tls) {
return super.flush();
}
if (sslEngine.isOutboundClosed()) {
if (sslEngine.flush() && writeWrappedBuffer(false) && super.flush()) {
super.terminateWrites();
return true;
} else {
return false;
}
}
return sslEngine.flush() && writeWrappedBuffer(false) && super.flush();
}
private boolean writeWrappedBuffer(boolean writeFinal) throws IOException {
synchronized (sslEngine.getWrapLock()) {
final ByteBuffer wrapBuffer = sslEngine.getWrappedBuffer();
for (;;) {
try {
if (!wrapBuffer.flip().hasRemaining()) {
if (writeFinal) {
terminateWrites();
}
return true;
}
if(writeFinal) {
if (super.writeFinal(wrapBuffer) == 0) {
return false;
}
} else {
if (super.write(wrapBuffer) == 0) {
return false;
}
}
} finally {
wrapBuffer.compact();
}
}
}
}
}