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The core jetty server artifact.
//
// ========================================================================
// Copyright (c) 1995 Mort Bay Consulting Pty Ltd and others.
//
// This program and the accompanying materials are made available under the
// terms of the Eclipse Public License v. 2.0 which is available at
// https://www.eclipse.org/legal/epl-2.0, or the Apache License, Version 2.0
// which is available at https://www.apache.org/licenses/LICENSE-2.0.
//
// SPDX-License-Identifier: EPL-2.0 OR Apache-2.0
// ========================================================================
//
package org.eclipse.jetty.server;
import java.io.IOException;
import java.net.Inet4Address;
import java.net.Inet6Address;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.SocketAddress;
import java.nio.ByteBuffer;
import java.nio.channels.ReadPendingException;
import java.nio.channels.WritePendingException;
import java.nio.charset.StandardCharsets;
import java.util.HashMap;
import java.util.Map;
import org.eclipse.jetty.io.AbstractConnection;
import org.eclipse.jetty.io.Connection;
import org.eclipse.jetty.io.EndPoint;
import org.eclipse.jetty.util.AttributesMap;
import org.eclipse.jetty.util.BufferUtil;
import org.eclipse.jetty.util.Callback;
import org.eclipse.jetty.util.TypeUtil;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* ConnectionFactory for the PROXY Protocol.
* This factory can be placed in front of any other connection factory
* to process the proxy v1 or v2 line before the normal protocol handling
*
* @see http://www.haproxy.org/download/1.5/doc/proxy-protocol.txt
*/
public class ProxyConnectionFactory extends DetectorConnectionFactory
{
public static final String TLS_VERSION = "TLS_VERSION";
private static final Logger LOG = LoggerFactory.getLogger(ProxyConnectionFactory.class);
public ProxyConnectionFactory()
{
this(null);
}
public ProxyConnectionFactory(String nextProtocol)
{
super(new ProxyV1ConnectionFactory(nextProtocol), new ProxyV2ConnectionFactory(nextProtocol));
}
private static ConnectionFactory findNextConnectionFactory(String nextProtocol, Connector connector, String currentProtocol, EndPoint endp)
{
currentProtocol = "[" + currentProtocol + "]";
if (LOG.isDebugEnabled())
LOG.debug("finding connection factory following {} for protocol {}", currentProtocol, nextProtocol);
String nextProtocolToFind = nextProtocol;
if (nextProtocol == null)
nextProtocolToFind = AbstractConnectionFactory.findNextProtocol(connector, currentProtocol);
if (nextProtocolToFind == null)
throw new IllegalStateException("Cannot find protocol following '" + currentProtocol + "' in connector's protocol list " + connector.getProtocols() + " for " + endp);
ConnectionFactory connectionFactory = connector.getConnectionFactory(nextProtocolToFind);
if (connectionFactory == null)
throw new IllegalStateException("Cannot find protocol '" + nextProtocol + "' in connector's protocol list " + connector.getProtocols() + " for " + endp);
if (LOG.isDebugEnabled())
LOG.debug("found next connection factory {} for protocol {}", connectionFactory, nextProtocol);
return connectionFactory;
}
public int getMaxProxyHeader()
{
ProxyV2ConnectionFactory v2 = getBean(ProxyV2ConnectionFactory.class);
return v2.getMaxProxyHeader();
}
public void setMaxProxyHeader(int maxProxyHeader)
{
ProxyV2ConnectionFactory v2 = getBean(ProxyV2ConnectionFactory.class);
v2.setMaxProxyHeader(maxProxyHeader);
}
private static class ProxyV1ConnectionFactory extends AbstractConnectionFactory implements Detecting
{
private static final byte[] SIGNATURE = "PROXY".getBytes(StandardCharsets.US_ASCII);
private final String _nextProtocol;
private ProxyV1ConnectionFactory(String nextProtocol)
{
super("proxy");
this._nextProtocol = nextProtocol;
}
@Override
public Detection detect(ByteBuffer buffer)
{
if (LOG.isDebugEnabled())
LOG.debug("Proxy v1 attempting detection with {} bytes", buffer.remaining());
if (buffer.remaining() < SIGNATURE.length)
{
if (LOG.isDebugEnabled())
LOG.debug("Proxy v1 detection requires more bytes");
return Detection.NEED_MORE_BYTES;
}
for (int i = 0; i < SIGNATURE.length; i++)
{
byte signatureByte = SIGNATURE[i];
byte byteInBuffer = buffer.get(i);
if (byteInBuffer != signatureByte)
{
if (LOG.isDebugEnabled())
LOG.debug("Proxy v1 detection unsuccessful");
return Detection.NOT_RECOGNIZED;
}
}
if (LOG.isDebugEnabled())
LOG.debug("Proxy v1 detection succeeded");
return Detection.RECOGNIZED;
}
@Override
public Connection newConnection(Connector connector, EndPoint endp)
{
ConnectionFactory nextConnectionFactory = findNextConnectionFactory(_nextProtocol, connector, getProtocol(), endp);
return configure(new ProxyProtocolV1Connection(endp, connector, nextConnectionFactory), connector, endp);
}
private static class ProxyProtocolV1Connection extends AbstractConnection implements Connection.UpgradeFrom, Connection.UpgradeTo
{
// 0 1 2 3 4 5 6
// 98765432109876543210987654321
// PROXY P R.R.R.R L.L.L.L R Lrn
private static final int CR_INDEX = 6;
private static final int LF_INDEX = 7;
private final Connector _connector;
private final ConnectionFactory _next;
private final ByteBuffer _buffer;
private final StringBuilder _builder = new StringBuilder();
private final String[] _fields = new String[6];
private int _index;
private int _length;
private ProxyProtocolV1Connection(EndPoint endp, Connector connector, ConnectionFactory next)
{
super(endp, connector.getExecutor());
_connector = connector;
_next = next;
_buffer = _connector.getByteBufferPool().acquire(getInputBufferSize(), true);
}
@Override
public void onFillable()
{
if (LOG.isDebugEnabled())
LOG.debug("Proxy v1 onFillable current index = {}", _index);
try
{
while (_index < LF_INDEX)
{
// Read data
int fill = getEndPoint().fill(_buffer);
if (LOG.isDebugEnabled())
LOG.debug("Proxy v1 filled buffer with {} bytes", fill);
if (fill < 0)
{
_connector.getByteBufferPool().release(_buffer);
getEndPoint().shutdownOutput();
return;
}
if (fill == 0)
{
fillInterested();
return;
}
if (parse())
break;
}
if (LOG.isDebugEnabled())
LOG.debug("Proxy v1 onFillable parsing done, now upgrading");
upgrade();
}
catch (Throwable x)
{
LOG.warn("Proxy v1 error for {}", getEndPoint(), x);
releaseAndClose();
}
}
@Override
public void onOpen()
{
super.onOpen();
try
{
while (_index < LF_INDEX)
{
if (!parse())
{
if (LOG.isDebugEnabled())
LOG.debug("Proxy v1 onOpen parsing ran out of bytes, marking as fillInterested");
fillInterested();
return;
}
}
if (LOG.isDebugEnabled())
LOG.debug("Proxy v1 onOpen parsing done, now upgrading");
upgrade();
}
catch (Throwable x)
{
LOG.warn("Proxy v1 error for {}", getEndPoint(), x);
releaseAndClose();
}
}
@Override
public ByteBuffer onUpgradeFrom()
{
if (_buffer.hasRemaining())
{
ByteBuffer unconsumed = ByteBuffer.allocateDirect(_buffer.remaining());
unconsumed.put(_buffer);
unconsumed.flip();
_connector.getByteBufferPool().release(_buffer);
return unconsumed;
}
return null;
}
@Override
public void onUpgradeTo(ByteBuffer buffer)
{
if (LOG.isDebugEnabled())
LOG.debug("Proxy v1 copying unconsumed buffer {}", BufferUtil.toDetailString(buffer));
BufferUtil.append(_buffer, buffer);
}
/**
* @return true when parsing is done, false when more bytes are needed.
*/
private boolean parse() throws IOException
{
if (LOG.isDebugEnabled())
LOG.debug("Proxy v1 parsing {}", BufferUtil.toDetailString(_buffer));
_length += _buffer.remaining();
// Parse fields
while (_buffer.hasRemaining())
{
byte b = _buffer.get();
if (_index < CR_INDEX)
{
if (b == ' ' || b == '\r')
{
_fields[_index++] = _builder.toString();
_builder.setLength(0);
if (b == '\r')
_index = CR_INDEX;
}
else if (b < ' ')
{
throw new IOException("Proxy v1 bad character " + (b & 0xFF));
}
else
{
_builder.append((char)b);
}
}
else
{
if (b == '\n')
{
_index = LF_INDEX;
if (LOG.isDebugEnabled())
LOG.debug("Proxy v1 parsing is done");
return true;
}
throw new IOException("Proxy v1 bad CRLF " + (b & 0xFF));
}
}
// Not enough bytes.
if (LOG.isDebugEnabled())
LOG.debug("Proxy v1 parsing requires more bytes");
return false;
}
private void releaseAndClose()
{
if (LOG.isDebugEnabled())
LOG.debug("Proxy v1 releasing buffer and closing");
_connector.getByteBufferPool().release(_buffer);
close();
}
private void upgrade()
{
int proxyLineLength = _length - _buffer.remaining();
if (LOG.isDebugEnabled())
LOG.debug("Proxy v1 pre-upgrade packet length (including CRLF) is {}", proxyLineLength);
if (proxyLineLength >= 110)
{
LOG.warn("Proxy v1 PROXY line too long {} for {}", proxyLineLength, getEndPoint());
releaseAndClose();
return;
}
// Check proxy
if (!"PROXY".equals(_fields[0]))
{
LOG.warn("Proxy v1 not PROXY protocol for {}", getEndPoint());
releaseAndClose();
return;
}
String srcIP = _fields[2];
String srcPort = _fields[4];
String dstIP = _fields[3];
String dstPort = _fields[5];
// If UNKNOWN, we must ignore the information sent, so use the EndPoint's.
boolean unknown = "UNKNOWN".equalsIgnoreCase(_fields[1]);
EndPoint proxyEndPoint;
if (unknown)
{
EndPoint endPoint = getEndPoint();
proxyEndPoint = new ProxyEndPoint(endPoint, endPoint.getLocalSocketAddress(), endPoint.getRemoteSocketAddress());
}
else
{
SocketAddress remote = new InetSocketAddress(srcIP, Integer.parseInt(srcPort));
SocketAddress local = new InetSocketAddress(dstIP, Integer.parseInt(dstPort));
proxyEndPoint = new ProxyEndPoint(getEndPoint(), local, remote);
}
if (LOG.isDebugEnabled())
LOG.debug("Proxy v1 next protocol '{}' for {} -> {}", _next, getEndPoint(), proxyEndPoint);
upgradeToConnectionFactory(_next, _connector, proxyEndPoint);
}
}
}
private static class ProxyV2ConnectionFactory extends AbstractConnectionFactory implements Detecting
{
private enum Family
{
UNSPEC, INET, INET6, UNIX
}
private enum Transport
{
UNSPEC, STREAM, DGRAM
}
private static final byte[] SIGNATURE = new byte[]
{
0x0D, 0x0A, 0x0D, 0x0A, 0x00, 0x0D, 0x0A, 0x51, 0x55, 0x49, 0x54, 0x0A
};
private final String _nextProtocol;
private int _maxProxyHeader = 1024;
private ProxyV2ConnectionFactory(String nextProtocol)
{
super("proxy");
this._nextProtocol = nextProtocol;
}
@Override
public Detection detect(ByteBuffer buffer)
{
if (LOG.isDebugEnabled())
LOG.debug("Proxy v2 attempting detection with {} bytes", buffer.remaining());
if (buffer.remaining() < SIGNATURE.length)
{
if (LOG.isDebugEnabled())
LOG.debug("Proxy v2 detection requires more bytes");
return Detection.NEED_MORE_BYTES;
}
for (int i = 0; i < SIGNATURE.length; i++)
{
byte signatureByte = SIGNATURE[i];
byte byteInBuffer = buffer.get(i);
if (byteInBuffer != signatureByte)
{
if (LOG.isDebugEnabled())
LOG.debug("Proxy v2 detection unsuccessful");
return Detection.NOT_RECOGNIZED;
}
}
if (LOG.isDebugEnabled())
LOG.debug("Proxy v2 detection succeeded");
return Detection.RECOGNIZED;
}
public int getMaxProxyHeader()
{
return _maxProxyHeader;
}
public void setMaxProxyHeader(int maxProxyHeader)
{
_maxProxyHeader = maxProxyHeader;
}
@Override
public Connection newConnection(Connector connector, EndPoint endp)
{
ConnectionFactory nextConnectionFactory = findNextConnectionFactory(_nextProtocol, connector, getProtocol(), endp);
return configure(new ProxyProtocolV2Connection(endp, connector, nextConnectionFactory), connector, endp);
}
private class ProxyProtocolV2Connection extends AbstractConnection implements Connection.UpgradeFrom, Connection.UpgradeTo
{
private static final int HEADER_LENGTH = 16;
private final Connector _connector;
private final ConnectionFactory _next;
private final ByteBuffer _buffer;
private boolean _local;
private Family _family;
private int _length;
private boolean _headerParsed;
protected ProxyProtocolV2Connection(EndPoint endp, Connector connector, ConnectionFactory next)
{
super(endp, connector.getExecutor());
_connector = connector;
_next = next;
_buffer = _connector.getByteBufferPool().acquire(getInputBufferSize(), true);
}
@Override
public void onUpgradeTo(ByteBuffer buffer)
{
if (LOG.isDebugEnabled())
LOG.debug("Proxy v2 copying unconsumed buffer {}", BufferUtil.toDetailString(buffer));
BufferUtil.append(_buffer, buffer);
}
@Override
public void onOpen()
{
super.onOpen();
try
{
parseHeader();
if (_headerParsed && _buffer.remaining() >= _length)
{
if (LOG.isDebugEnabled())
LOG.debug("Proxy v2 onOpen parsing fixed length packet part done, now upgrading");
parseBodyAndUpgrade();
}
else
{
if (LOG.isDebugEnabled())
LOG.debug("Proxy v2 onOpen parsing fixed length packet ran out of bytes, marking as fillInterested");
fillInterested();
}
}
catch (Exception x)
{
LOG.warn("Proxy v2 error for {}", getEndPoint(), x);
releaseAndClose();
}
}
@Override
public void onFillable()
{
try
{
if (LOG.isDebugEnabled())
LOG.debug("Proxy v2 onFillable header parsed? {}", _headerParsed);
while (!_headerParsed)
{
// Read data
int fill = getEndPoint().fill(_buffer);
if (LOG.isDebugEnabled())
LOG.debug("Proxy v2 filled buffer with {} bytes", fill);
if (fill < 0)
{
_connector.getByteBufferPool().release(_buffer);
getEndPoint().shutdownOutput();
return;
}
if (fill == 0)
{
fillInterested();
return;
}
parseHeader();
}
if (LOG.isDebugEnabled())
LOG.debug("Proxy v2 onFillable header parsed, length = {}, buffer = {}", _length, BufferUtil.toDetailString(_buffer));
while (_buffer.remaining() < _length)
{
// Read data
int fill = getEndPoint().fill(_buffer);
if (LOG.isDebugEnabled())
LOG.debug("Proxy v2 filled buffer with {} bytes", fill);
if (fill < 0)
{
_connector.getByteBufferPool().release(_buffer);
getEndPoint().shutdownOutput();
return;
}
if (fill == 0)
{
fillInterested();
return;
}
}
parseBodyAndUpgrade();
}
catch (Throwable x)
{
LOG.warn("Proxy v2 error for {}", getEndPoint(), x);
releaseAndClose();
}
}
@Override
public ByteBuffer onUpgradeFrom()
{
if (_buffer.hasRemaining())
{
ByteBuffer unconsumed = ByteBuffer.allocateDirect(_buffer.remaining());
unconsumed.put(_buffer);
unconsumed.flip();
_connector.getByteBufferPool().release(_buffer);
return unconsumed;
}
return null;
}
private void parseBodyAndUpgrade() throws IOException
{
int nonProxyRemaining = _buffer.remaining() - _length;
if (LOG.isDebugEnabled())
LOG.debug("Proxy v2 parsing body, length = {}, buffer = {}", _length, BufferUtil.toHexSummary(_buffer));
if (LOG.isDebugEnabled())
LOG.debug("Proxy v2 body {} from {} for {}", _next, BufferUtil.toHexSummary(_buffer), this);
// Do we need to wrap the endpoint?
ProxyEndPoint proxyEndPoint;
EndPoint endPoint = getEndPoint();
if (_local)
{
_buffer.position(_buffer.position() + _length);
proxyEndPoint = new ProxyEndPoint(endPoint, endPoint.getLocalSocketAddress(), endPoint.getRemoteSocketAddress());
}
else
{
SocketAddress local;
SocketAddress remote;
switch (_family)
{
case INET:
{
byte[] addr = new byte[4];
_buffer.get(addr);
InetAddress srcAddr = Inet4Address.getByAddress(addr);
_buffer.get(addr);
InetAddress dstAddr = Inet4Address.getByAddress(addr);
int srcPort = _buffer.getChar();
int dstPort = _buffer.getChar();
local = new InetSocketAddress(dstAddr, dstPort);
remote = new InetSocketAddress(srcAddr, srcPort);
break;
}
case INET6:
{
byte[] addr = new byte[16];
_buffer.get(addr);
InetAddress srcAddr = Inet6Address.getByAddress(addr);
_buffer.get(addr);
InetAddress dstAddr = Inet6Address.getByAddress(addr);
int srcPort = _buffer.getChar();
int dstPort = _buffer.getChar();
local = new InetSocketAddress(dstAddr, dstPort);
remote = new InetSocketAddress(srcAddr, srcPort);
break;
}
case UNIX:
{
byte[] addr = new byte[108];
_buffer.get(addr);
String src = UnixDomain.toPath(addr);
_buffer.get(addr);
String dst = UnixDomain.toPath(addr);
local = UnixDomain.newSocketAddress(dst);
remote = UnixDomain.newSocketAddress(src);
break;
}
default:
{
throw new IllegalStateException("Unsupported family " + _family);
}
}
proxyEndPoint = new ProxyEndPoint(endPoint, local, remote);
// Any additional info?
while (_buffer.remaining() > nonProxyRemaining)
{
int type = 0xff & _buffer.get();
int length = _buffer.getChar();
byte[] value = new byte[length];
_buffer.get(value);
if (LOG.isDebugEnabled())
LOG.debug(String.format("Proxy v2 T=%x L=%d V=%s for %s", type, length, TypeUtil.toHexString(value), this));
// PP2_TYPE_NOOP is only used for byte alignment, skip them.
if (type != ProxyEndPoint.PP2_TYPE_NOOP)
proxyEndPoint.putTLV(type, value);
if (type == ProxyEndPoint.PP2_TYPE_SSL)
{
int client = value[0] & 0xFF;
if (client == ProxyEndPoint.PP2_TYPE_SSL_PP2_CLIENT_SSL)
{
int i = 5; // Index of the first sub_tlv, after verify.
while (i < length)
{
int subType = value[i++] & 0xFF;
int subLength = (value[i++] & 0xFF) * 256 + (value[i++] & 0xFF);
byte[] subValue = new byte[subLength];
System.arraycopy(value, i, subValue, 0, subLength);
i += subLength;
if (subType == ProxyEndPoint.PP2_SUBTYPE_SSL_VERSION)
{
String tlsVersion = new String(subValue, StandardCharsets.US_ASCII);
proxyEndPoint.setAttribute(TLS_VERSION, tlsVersion);
}
}
}
}
}
if (LOG.isDebugEnabled())
LOG.debug("Proxy v2 {} {}", endPoint, proxyEndPoint);
}
if (LOG.isDebugEnabled())
LOG.debug("Proxy v2 parsing dynamic packet part is now done, upgrading to {}", _nextProtocol);
upgradeToConnectionFactory(_next, _connector, proxyEndPoint);
}
private void parseHeader() throws IOException
{
if (LOG.isDebugEnabled())
LOG.debug("Proxy v2 parsing fixed length packet part, buffer = {}", BufferUtil.toDetailString(_buffer));
if (_buffer.remaining() < HEADER_LENGTH)
return;
if (LOG.isDebugEnabled())
LOG.debug("Proxy v2 header {} for {}", BufferUtil.toHexSummary(_buffer), this);
// struct proxy_hdr_v2 {
// uint8_t sig[12]; /* hex 0D 0A 0D 0A 00 0D 0A 51 55 49 54 0A */
// uint8_t ver_cmd; /* protocol version and command */
// uint8_t fam; /* protocol family and address */
// uint16_t len; /* number of following bytes part of the header */
// };
for (byte signatureByte : SIGNATURE)
{
if (_buffer.get() != signatureByte)
throw new IOException("Proxy v2 bad PROXY signature");
}
int versionAndCommand = 0xFF & _buffer.get();
if ((versionAndCommand & 0xF0) != 0x20)
throw new IOException("Proxy v2 bad PROXY version");
_local = (versionAndCommand & 0xF) == 0x00;
int transportAndFamily = 0xFF & _buffer.get();
switch (transportAndFamily >> 4)
{
case 0:
_family = Family.UNSPEC;
break;
case 1:
_family = Family.INET;
break;
case 2:
_family = Family.INET6;
break;
case 3:
_family = Family.UNIX;
break;
default:
throw new IOException("Proxy v2 bad PROXY family");
}
Transport transport;
switch (transportAndFamily & 0xF)
{
case 0:
transport = Transport.UNSPEC;
break;
case 1:
transport = Transport.STREAM;
break;
case 2:
transport = Transport.DGRAM;
break;
default:
throw new IOException("Proxy v2 bad PROXY family");
}
_length = _buffer.getChar();
if (!_local && (_family == Family.UNSPEC || transport != Transport.STREAM))
throw new IOException(String.format("Proxy v2 unsupported PROXY mode 0x%x,0x%x", versionAndCommand, transportAndFamily));
if (_length > getMaxProxyHeader())
throw new IOException(String.format("Proxy v2 Unsupported PROXY mode 0x%x,0x%x,0x%x", versionAndCommand, transportAndFamily, _length));
if (LOG.isDebugEnabled())
LOG.debug("Proxy v2 fixed length packet part is now parsed");
_headerParsed = true;
}
private void releaseAndClose()
{
_connector.getByteBufferPool().release(_buffer);
close();
}
}
}
public static class ProxyEndPoint extends AttributesMap implements EndPoint, EndPoint.Wrapper
{
private static final int PP2_TYPE_NOOP = 0x04;
private static final int PP2_TYPE_SSL = 0x20;
private static final int PP2_TYPE_SSL_PP2_CLIENT_SSL = 0x01;
private static final int PP2_SUBTYPE_SSL_VERSION = 0x21;
private final EndPoint _endPoint;
private final SocketAddress _local;
private final SocketAddress _remote;
private Map _tlvs;
@Deprecated
public ProxyEndPoint(EndPoint endPoint, InetSocketAddress remote, InetSocketAddress local)
{
this(endPoint, (SocketAddress)local, remote);
}
public ProxyEndPoint(EndPoint endPoint, SocketAddress local, SocketAddress remote)
{
_endPoint = endPoint;
_local = local;
_remote = remote;
}
public EndPoint unwrap()
{
return _endPoint;
}
/**
* Sets a TLV vector, see section 2.2.7 of the PROXY protocol specification.
*
* @param type the TLV type
* @param value the TLV value
*/
private void putTLV(int type, byte[] value)
{
if (_tlvs == null)
_tlvs = new HashMap<>();
_tlvs.put(type, value);
}
/**
* Gets a TLV vector, see section 2.2.7 of the PROXY protocol specification.
*
* @param type the TLV type
* @return the TLV value or null if not present.
*/
public byte[] getTLV(int type)
{
return _tlvs != null ? _tlvs.get(type) : null;
}
@Override
public void close(Throwable cause)
{
_endPoint.close(cause);
}
@Override
public int fill(ByteBuffer buffer) throws IOException
{
return _endPoint.fill(buffer);
}
@Override
public void fillInterested(Callback callback) throws ReadPendingException
{
_endPoint.fillInterested(callback);
}
@Override
public boolean flush(ByteBuffer... buffer) throws IOException
{
return _endPoint.flush(buffer);
}
@Override
public Connection getConnection()
{
return _endPoint.getConnection();
}
@Override
public void setConnection(Connection connection)
{
_endPoint.setConnection(connection);
}
@Override
public long getCreatedTimeStamp()
{
return _endPoint.getCreatedTimeStamp();
}
@Override
public long getIdleTimeout()
{
return _endPoint.getIdleTimeout();
}
@Override
public void setIdleTimeout(long idleTimeout)
{
_endPoint.setIdleTimeout(idleTimeout);
}
@Override
public InetSocketAddress getLocalAddress()
{
SocketAddress local = getLocalSocketAddress();
if (local instanceof InetSocketAddress)
return (InetSocketAddress)local;
return null;
}
@Override
public SocketAddress getLocalSocketAddress()
{
return _local;
}
@Override
public InetSocketAddress getRemoteAddress()
{
SocketAddress remote = getRemoteSocketAddress();
if (remote instanceof InetSocketAddress)
return (InetSocketAddress)remote;
return null;
}
@Override
public SocketAddress getRemoteSocketAddress()
{
return _remote;
}
@Override
public Object getTransport()
{
return _endPoint.getTransport();
}
@Override
public boolean isFillInterested()
{
return _endPoint.isFillInterested();
}
@Override
public boolean isInputShutdown()
{
return _endPoint.isInputShutdown();
}
@Override
public boolean isOpen()
{
return _endPoint.isOpen();
}
@Override
public boolean isOutputShutdown()
{
return _endPoint.isOutputShutdown();
}
@Override
public void onClose(Throwable cause)
{
_endPoint.onClose(cause);
}
@Override
public void onOpen()
{
_endPoint.onOpen();
}
@Override
public void shutdownOutput()
{
_endPoint.shutdownOutput();
}
@Override
public String toString()
{
return String.format("%s@%x[remote=%s,local=%s,endpoint=%s]",
getClass().getSimpleName(),
hashCode(),
_remote,
_local,
_endPoint);
}
@Override
public boolean tryFillInterested(Callback callback)
{
return _endPoint.tryFillInterested(callback);
}
@Override
public void upgrade(Connection newConnection)
{
_endPoint.upgrade(newConnection);
}
@Override
public void write(Callback callback, ByteBuffer... buffers) throws WritePendingException
{
_endPoint.write(callback, buffers);
}
}
private static class UnixDomain
{
private static final Class unixDomainSocketAddress = probe();
private static Class probe()
{
try
{
return ClassLoader.getPlatformClassLoader().loadClass("java.net.UnixDomainSocketAddress");
}
catch (Throwable ignored)
{
return null;
}
}
private static SocketAddress newSocketAddress(String path)
{
try
{
if (unixDomainSocketAddress != null)
return (SocketAddress)unixDomainSocketAddress.getMethod("of", String.class).invoke(null, path);
return null;
}
catch (Throwable ignored)
{
return null;
}
}
private static String toPath(byte[] bytes)
{
// Unix-Domain paths are zero-terminated.
int i = 0;
while (i < bytes.length)
{
if (bytes[i++] == 0)
break;
}
return new String(bytes, 0, i, StandardCharsets.US_ASCII).trim();
}
}
}