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/**
* Copyright (C) 2010-2017 Gordon Fraser, Andrea Arcuri and EvoSuite
* contributors
*
* This file is part of EvoSuite.
*
* EvoSuite is free software: you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation, either version 3.0 of the License, or
* (at your option) any later version.
*
* EvoSuite 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
* Lesser Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with EvoSuite. If not, see .
*/
package org.evosuite.runtime.mock.java.net;
import org.evosuite.runtime.mock.MockFramework;
import org.evosuite.runtime.mock.OverrideMock;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.Inet4Address;
import java.net.Inet6Address;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.Proxy;
import java.net.Socket;
import java.net.SocketAddress;
import java.net.SocketException;
import java.net.SocketImplFactory;
import java.net.SocketOptions;
import java.net.UnknownHostException;
import java.nio.channels.SocketChannel;
public class MockSocket extends Socket implements OverrideMock {
private Object closeLock = new Object();
private boolean created = false;
private boolean bound = false;
private boolean connected = false;
private boolean closed = false;
private boolean shutIn = false;
private boolean shutOut = false;
MockSocketImpl impl;
//-------- constructors ---------------------------
/**
* TODO rollback here would be very complicated, as would need to replicate every single
* constructor code by reflection, as they have side-effects we cannot avoid
*/
public MockSocket() {
super();
if(!MockFramework.isEnabled()) {
return;
}
setImpl();
}
public MockSocket(Proxy proxy) {
// Create a copy of Proxy as a security measure
if (proxy == null) {
throw new IllegalArgumentException("Invalid Proxy");
}
Proxy p = proxy;
//Note: not needed as only used in EvoSuiteSocket constructor
// == Proxy.NO_PROXY ? Proxy.NO_PROXY : sun.net.ApplicationProxy.create(proxy);
if (p.type() == Proxy.Type.SOCKS) {
InetSocketAddress epoint = (InetSocketAddress) p.address();
if (epoint.getAddress() != null) {
checkAddress (epoint.getAddress(), "Socket");
}
impl = new EvoSuiteSocket(p);
impl.setSocket(this);
} else {
if (p == Proxy.NO_PROXY) {
impl = new EvoSuiteSocket();
impl.setSocket(this);
} else
throw new IllegalArgumentException("Invalid Proxy");
}
}
protected MockSocket(MockSocketImpl impl) throws SocketException {
super(impl);
if(!MockFramework.isEnabled()) {
return;
}
this.impl = impl;
if (impl != null) {
this.impl.setSocket(this);
}
}
public MockSocket(String host, int port)throws UnknownHostException, IOException {
this(host != null ? new MockInetSocketAddress(host, port) :
new MockInetSocketAddress(MockInetAddress.getByName(null), port),
(SocketAddress) null, true);
}
public MockSocket(InetAddress address, int port) throws IOException {
this(address != null ? new MockInetSocketAddress(address, port) : null,
(SocketAddress) null, true);
}
public MockSocket(String host, int port, InetAddress localAddr,
int localPort) throws IOException {
this(host != null ? new MockInetSocketAddress(host, port) :
new MockInetSocketAddress(MockInetAddress.getByName(null), port),
new MockInetSocketAddress(localAddr, localPort), true);
}
public MockSocket(InetAddress address, int port, InetAddress localAddr,
int localPort) throws IOException {
this(address != null ? new MockInetSocketAddress(address, port) : null,
new MockInetSocketAddress(localAddr, localPort), true);
}
public MockSocket(String host, int port, boolean stream) throws IOException {
this(host != null ? new MockInetSocketAddress(host, port) :
new MockInetSocketAddress(MockInetAddress.getByName(null), port),
(SocketAddress) null, stream);
}
public MockSocket(InetAddress host, int port, boolean stream) throws IOException {
this(host != null ? new MockInetSocketAddress(host, port) : null,
new MockInetSocketAddress(0), stream);
}
private MockSocket(SocketAddress address, SocketAddress localAddr,
boolean stream) throws IOException {
setImpl();
// backward compatibility
if (address == null)
throw new NullPointerException();
try {
createImpl(stream);
if (localAddr != null)
bind(localAddr);
if (address != null)
connect(address);
} catch (IOException e) {
close();
throw e;
}
}
//---------------------------------------------------------------
protected void createImpl(boolean stream) throws SocketException {
if (impl == null)
setImpl();
try {
impl.create(stream);
created = true;
} catch (IOException e) {
throw new SocketException(e.getMessage());
}
}
/*
in superclass it is package level, so it is not overriden
*/
protected void setImpl() {
impl = new EvoSuiteSocket();
impl.setSocket(this);
}
protected MockSocketImpl getImpl() throws SocketException {
if (!created)
createImpl(true);
return impl;
}
/*
* note: super postAccept is final.
* but it is called only in ServerSocket
*/
protected void _postAccept() {
connected = true;
created = true;
bound = true;
}
protected void setCreated() {
created = true;
}
protected void setBound() {
bound = true;
}
protected void setConnected() {
connected = true;
}
//-------- public methods ----------------
@Override
public void connect(SocketAddress endpoint) throws IOException {
connect(endpoint, 0);
}
@Override
public void connect(SocketAddress endpoint, int timeout) throws IOException {
if (endpoint == null)
throw new IllegalArgumentException("connect: The address can't be null");
if (timeout < 0)
throw new IllegalArgumentException("connect: timeout can't be negative");
if (isClosed())
throw new SocketException("Socket is closed");
if (isConnected())
throw new SocketException("already connected");
if (!(endpoint instanceof InetSocketAddress))
throw new IllegalArgumentException("Unsupported address type");
InetSocketAddress epoint = (InetSocketAddress) endpoint;
InetAddress addr = epoint.getAddress();
checkAddress(addr, "connect");
if (!created)
createImpl(true);
impl.connect(epoint, timeout);
connected = true;
/*
* If the socket was not bound before the connect, it is now because
* the kernel will have picked an ephemeral port & a local address
*/
bound = true;
}
@Override
public void bind(SocketAddress bindpoint) throws IOException {
if (isClosed())
throw new SocketException("Socket is closed");
if (isBound())
throw new SocketException("Already bound");
if (bindpoint != null && (!(bindpoint instanceof InetSocketAddress)))
throw new IllegalArgumentException("Unsupported address type");
InetSocketAddress epoint = (InetSocketAddress) bindpoint;
if (epoint != null && epoint.isUnresolved())
throw new SocketException("Unresolved address");
if (epoint == null) {
epoint = new MockInetSocketAddress(0);
}
InetAddress addr = epoint.getAddress();
int port = epoint.getPort();
checkAddress (addr, "bind");
getImpl().bind (addr, port);
bound = true;
}
private void checkAddress (InetAddress addr, String op) {
if (addr == null) {
return;
}
if (!(addr instanceof Inet4Address || addr instanceof Inet6Address)) {
throw new IllegalArgumentException(op + ": invalid address type");
}
}
@Override
public InetAddress getInetAddress() {
if (!isConnected())
return null;
try {
return getImpl().getInetAddress();
} catch (SocketException e) {
}
return null;
}
@Override
public InetAddress getLocalAddress() {
if(!MockFramework.isEnabled()) {
return super.getLocalAddress();
}
if (!isBound()) {
return MockInetAddress.anyLocalAddress();
}
InetAddress in = null;
try {
in = (InetAddress) getImpl().getOption(SocketOptions.SO_BINDADDR);
if (in.isAnyLocalAddress()) {
in = MockInetAddress.anyLocalAddress();
}
} catch (SecurityException e) {
in = MockInetAddress.getLoopbackAddress();
} catch (Exception e) {
in = MockInetAddress.anyLocalAddress();
}
return in;
}
@Override
public int getPort() {
if (!isConnected())
return 0;
try {
return getImpl().getPort();
} catch (SocketException e) {
// Shouldn't happen as we're connected
}
return -1;
}
@Override
public int getLocalPort() {
if (!isBound())
return -1;
try {
return getImpl().getLocalPort();
} catch(SocketException e) {
// shouldn't happen as we're bound
}
return -1;
}
@Override
public SocketAddress getRemoteSocketAddress() {
if (!isConnected())
return null;
return new MockInetSocketAddress(getInetAddress(), getPort());
}
@Override
public SocketAddress getLocalSocketAddress() {
if (!isBound())
return null;
return new MockInetSocketAddress(getLocalAddress(), getLocalPort());
}
@Override
public SocketChannel getChannel() {
return null; //TODO check it
}
@Override
public InputStream getInputStream() throws IOException {
if (isClosed())
throw new SocketException("Socket is closed");
if (!isConnected())
throw new SocketException("Socket is not connected");
if (isInputShutdown())
throw new SocketException("Socket input is shutdown");
return impl.getInputStream();
}
@Override
public OutputStream getOutputStream() throws IOException {
if (isClosed())
throw new SocketException("Socket is closed");
if (!isConnected())
throw new SocketException("Socket is not connected");
if (isOutputShutdown())
throw new SocketException("Socket output is shutdown");
return impl.getOutputStream();
}
@Override
public void setTcpNoDelay(boolean on) throws SocketException {
if (isClosed())
throw new SocketException("Socket is closed");
getImpl().setOption(SocketOptions.TCP_NODELAY, Boolean.valueOf(on));
}
@Override
public boolean getTcpNoDelay() throws SocketException {
if (isClosed())
throw new SocketException("Socket is closed");
return ((Boolean) getImpl().getOption(SocketOptions.TCP_NODELAY)).booleanValue();
}
@Override
public void setSoLinger(boolean on, int linger) throws SocketException {
if (isClosed())
throw new SocketException("Socket is closed");
if (!on) {
getImpl().setOption(SocketOptions.SO_LINGER, new Boolean(on));
} else {
if (linger < 0) {
throw new IllegalArgumentException("invalid value for SO_LINGER");
}
if (linger > 65535)
linger = 65535;
getImpl().setOption(SocketOptions.SO_LINGER, new Integer(linger));
}
}
@Override
public int getSoLinger() throws SocketException {
if (isClosed())
throw new SocketException("Socket is closed");
Object o = getImpl().getOption(SocketOptions.SO_LINGER);
if (o instanceof Integer) {
return ((Integer) o).intValue();
} else {
return -1;
}
}
@Override
public void sendUrgentData (int data) throws IOException {
if (!getImpl().supportsUrgentData ()) {
throw new SocketException ("Urgent data not supported");
}
getImpl().sendUrgentData (data);
}
@Override
public void setOOBInline(boolean on) throws SocketException {
if (isClosed())
throw new SocketException("Socket is closed");
getImpl().setOption(SocketOptions.SO_OOBINLINE, Boolean.valueOf(on));
}
@Override
public boolean getOOBInline() throws SocketException {
if (isClosed())
throw new SocketException("Socket is closed");
return ((Boolean) getImpl().getOption(SocketOptions.SO_OOBINLINE)).booleanValue();
}
@Override
public synchronized void setSoTimeout(int timeout) throws SocketException {
if (isClosed())
throw new SocketException("Socket is closed");
if (timeout < 0)
throw new IllegalArgumentException("timeout can't be negative");
getImpl().setOption(SocketOptions.SO_TIMEOUT, new Integer(timeout));
}
@Override
public synchronized int getSoTimeout() throws SocketException {
if (isClosed())
throw new SocketException("Socket is closed");
Object o = getImpl().getOption(SocketOptions.SO_TIMEOUT);
if (o instanceof Integer) {
return ((Integer) o).intValue();
} else {
return 0;
}
}
@Override
public synchronized void setSendBufferSize(int size) throws SocketException{
if (!(size > 0)) {
throw new IllegalArgumentException("negative send size");
}
if (isClosed())
throw new SocketException("Socket is closed");
getImpl().setOption(SocketOptions.SO_SNDBUF, new Integer(size));
}
@Override
public synchronized int getSendBufferSize() throws SocketException {
if (isClosed())
throw new SocketException("Socket is closed");
int result = 0;
Object o = getImpl().getOption(SocketOptions.SO_SNDBUF);
if (o instanceof Integer) {
result = ((Integer)o).intValue();
}
return result;
}
@Override
public synchronized void setReceiveBufferSize(int size) throws SocketException{
if (size <= 0) {
throw new IllegalArgumentException("invalid receive size");
}
if (isClosed())
throw new SocketException("Socket is closed");
getImpl().setOption(SocketOptions.SO_RCVBUF, new Integer(size));
}
@Override
public synchronized int getReceiveBufferSize() throws SocketException{
if (isClosed())
throw new SocketException("Socket is closed");
int result = 0;
Object o = getImpl().getOption(SocketOptions.SO_RCVBUF);
if (o instanceof Integer) {
result = ((Integer)o).intValue();
}
return result;
}
@Override
public void setKeepAlive(boolean on) throws SocketException {
if (isClosed())
throw new SocketException("Socket is closed");
getImpl().setOption(SocketOptions.SO_KEEPALIVE, Boolean.valueOf(on));
}
@Override
public boolean getKeepAlive() throws SocketException {
if (isClosed())
throw new SocketException("Socket is closed");
return ((Boolean) getImpl().getOption(SocketOptions.SO_KEEPALIVE)).booleanValue();
}
@Override
public void setTrafficClass(int tc) throws SocketException {
if (tc < 0 || tc > 255)
throw new IllegalArgumentException("tc is not in range 0 -- 255");
if (isClosed())
throw new SocketException("Socket is closed");
getImpl().setOption(SocketOptions.IP_TOS, new Integer(tc));
}
@Override
public int getTrafficClass() throws SocketException {
return ((Integer) (getImpl().getOption(SocketOptions.IP_TOS))).intValue();
}
@Override
public void setReuseAddress(boolean on) throws SocketException {
if (isClosed())
throw new SocketException("Socket is closed");
getImpl().setOption(SocketOptions.SO_REUSEADDR, Boolean.valueOf(on));
}
@Override
public boolean getReuseAddress() throws SocketException {
if (isClosed())
throw new SocketException("Socket is closed");
return ((Boolean) (getImpl().getOption(SocketOptions.SO_REUSEADDR))).booleanValue();
}
@Override
public synchronized void close() throws IOException {
synchronized(closeLock) {
if (isClosed())
return;
if (created)
impl.close();
closed = true;
}
}
@Override
public void shutdownInput() throws IOException
{
if (isClosed())
throw new SocketException("Socket is closed");
if (!isConnected())
throw new SocketException("Socket is not connected");
if (isInputShutdown())
throw new SocketException("Socket input is already shutdown");
getImpl().shutdownInput();
shutIn = true;
}
@Override
public void shutdownOutput() throws IOException
{
if (isClosed())
throw new SocketException("Socket is closed");
if (!isConnected())
throw new SocketException("Socket is not connected");
if (isOutputShutdown())
throw new SocketException("Socket output is already shutdown");
getImpl().shutdownOutput();
shutOut = true;
}
@Override
public String toString() {
try {
if (isConnected())
return "Socket[addr=" + getImpl().getInetAddress() +
",port=" + getImpl().getPort() +
",localport=" + getImpl().getLocalPort() + "]";
} catch (SocketException e) {
}
return "Socket[unconnected]";
}
// -------- boolean methods --------
@Override
public boolean isConnected() {
return connected;
}
@Override
public boolean isBound() {
return bound;
}
@Override
public boolean isClosed() {
synchronized(closeLock) {
return closed;
}
}
@Override
public boolean isInputShutdown() {
return shutIn;
}
@Override
public boolean isOutputShutdown() {
return shutOut;
}
//---------------------------------------
//private static SocketImplFactory factory = null;
public static synchronized void setSocketImplFactory(SocketImplFactory fac) throws IOException{
/*
* Having a factory would be very tricky, as returned instances are not of type MockSocketImpl.
* Even if where to change "impl" into SocketImpl, then we wouldn't be able to call all its package
* level methods used in this class. We could use reflection though.
* Anyway, as this method is never used in SF110, we just throw a legal exception
*/
throw new IOException("Setting of factory is not supported in virtual network");
/*
if (factory != null) {
throw new SocketException("factory already defined");
}
SecurityManager security = System.getSecurityManager();
if (security != null) {
security.checkSetFactory();
}
factory = fac;
*/
}
@Override
public void setPerformancePreferences(int connectionTime,
int latency,
int bandwidth) {
super.setPerformancePreferences(connectionTime, latency, bandwidth);
}
}
