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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.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.ServerSocket;
import java.net.Socket;
import java.net.SocketAddress;
import java.net.SocketException;
import java.net.SocketImplFactory;
import java.net.SocketOptions;
import java.nio.channels.ServerSocketChannel;
/**
*
* Created by arcuri on 6/29/14.
*/
public class MockServerSocket extends ServerSocket implements OverrideMock {
private boolean created = false;
private boolean bound = false;
private boolean closed = false;
private Object closeLock = new Object();
private boolean oldImpl = false;
private MockSocketImpl impl;
//--------- constructors -------------
/**
* Non-visible (package-level) constructor
*
MockServerSocket(MockSocketImpl impl) {
this.impl = impl;
impl.setServerSocket(this);
}
*/
public MockServerSocket() throws IOException {
super();
/*
* the super constructor is only calling setImpl, which is implemented with:
if (factory != null) {
impl = factory.createSocketImpl();
checkOldImpl();
} else {
// No need to do a checkOldImpl() here, we know it's an up to date
// SocketImpl!
impl = new SocksSocketImpl();
}
if (impl != null)
impl.setServerSocket(this);
* ie, the only side effect is to set the variable "impl"
*/
setImpl();
}
public MockServerSocket(int port) throws IOException {
this(port, 50, null);
}
public MockServerSocket(int port, int backlog) throws IOException {
this(port, backlog, null);
}
public MockServerSocket(int port, int backlog, InetAddress bindAddr) throws IOException {
this();
if (port < 0 || port > 0xFFFF)
throw new IllegalArgumentException("Port value out of range: " + port);
if (backlog < 1)
backlog = 50;
try {
if(MockFramework.isEnabled()) {
bind(new MockInetSocketAddress(bindAddr, port), backlog);
} else {
Method setImplMethod = ServerSocket.class.getDeclaredMethod("setImpl");
setImplMethod.setAccessible(true);
setImplMethod.invoke(this);
super.bind(new InetSocketAddress(bindAddr, port), backlog);
}
} catch(SecurityException e) {
close();
throw e;
} catch(IOException e) {
close();
throw e;
} catch (NoSuchMethodException | IllegalAccessException e ) {
//should never happen
throw new RuntimeException("ERROR in EvoSuite: "+e,e);
} catch (InvocationTargetException e) {
throw new RuntimeException(e.getCause());
}
}
//-------------------------------------------------
public static synchronized void setSocketFactory(SocketImplFactory fac) throws IOException {
//for explanation, see MockSocket
throw new IOException("Setting of factory is not supported in virtual network");
}
private void setImpl() {
impl = new EvoSuiteSocket();
impl.setServerSocket(this);
}
private MockSocketImpl getImpl() throws SocketException {
if (!created)
createImpl();
return impl;
}
protected void setBound() {
bound = true;
}
protected void setCreated() {
created = true;
}
private void createImpl() throws SocketException {
if (impl == null)
setImpl();
try {
impl.create(true);
created = true;
} catch (IOException e) {
throw new SocketException(e.getMessage());
}
}
@Override
public void bind(SocketAddress endpoint) throws IOException {
if(!MockFramework.isEnabled()){
super.bind(endpoint);
return;
}
bind(endpoint, 50);
}
@Override
public void bind(SocketAddress endpoint, int backlog) throws IOException {
if(!MockFramework.isEnabled()){
super.bind(endpoint,backlog);
return;
}
if (isClosed())
throw new SocketException("Socket is closed");
if (!oldImpl && isBound())
throw new SocketException("Already bound");
if (endpoint == null)
endpoint = new MockInetSocketAddress(0);
if (!(endpoint instanceof InetSocketAddress))
throw new IllegalArgumentException("Unsupported address type");
InetSocketAddress epoint = (InetSocketAddress) endpoint;
if (epoint.isUnresolved())
throw new SocketException("Unresolved address");
if (backlog < 1)
backlog = 50;
try {
getImpl().bind(epoint.getAddress(), epoint.getPort());
getImpl().listen(backlog);
bound = true;
} catch(IOException e) {
bound = false;
throw e;
}
}
@Override
public InetAddress getInetAddress() {
if(!MockFramework.isEnabled()){
return super.getInetAddress();
}
if (!isBound())
return null;
try {
InetAddress in = getImpl().getInetAddress();
return in;
} catch (SocketException e) {
// nothing
// If we're bound, the impl has been created
// so we shouldn't get here
}
return null;
}
@Override
public int getLocalPort() {
if(!MockFramework.isEnabled()){
return super.getLocalPort();
}
if (!isBound())
return -1;
try {
return getImpl().getLocalPort();
} catch (SocketException e) {
// nothing
// If we're bound, the impl has been created
// so we shouldn't get here
}
return -1;
}
@Override
public SocketAddress getLocalSocketAddress() {
if(!MockFramework.isEnabled()){
return super.getLocalSocketAddress();
}
if (!isBound())
return null;
return new InetSocketAddress(getInetAddress(), getLocalPort());
}
@Override
public Socket accept() throws IOException {
if(!MockFramework.isEnabled()){
return super.accept();
}
if (isClosed())
throw new SocketException("Socket is closed");
if (!isBound())
throw new SocketException("Socket is not bound yet");
MockSocket s = new MockSocket((MockSocketImpl) null);
_implAccept(s);
return s;
}
protected void _implAccept(MockSocket s) throws IOException {
MockSocketImpl si = null;
try {
if (s.impl == null)
s.setImpl();
else {
s.impl.reset();
}
si = s.impl;
s.impl = null;
//si.address = new InetAddress();
//si.fd = new FileDescriptor();
si.setServerSocket(this);// TODO not sure if correct
getImpl().accept(si);
} catch (IOException e) {
if (si != null)
si.reset();
s.impl = si;
throw e;
}
s.impl = si;
s._postAccept();
}
/* Cannot override because final
protected final void implAccept(Socket s) throws IOException {
SocketImpl si = null;
try {
if (s.impl == null)
s.setImpl();
else {
s.impl.reset();
}
si = s.impl;
s.impl = null;
si.address = new InetAddress();
si.fd = new FileDescriptor();
getImpl().accept(si);
SecurityManager security = System.getSecurityManager();
if (security != null) {
security.checkAccept(si.getInetAddress().getHostAddress(),
si.getPort());
}
} catch (IOException e) {
if (si != null)
si.reset();
s.impl = si;
throw e;
} catch (SecurityException e) {
if (si != null)
si.reset();
s.impl = si;
throw e;
}
s.impl = si;
s.postAccept();
}
*/
@Override
public void close() throws IOException {
if(!MockFramework.isEnabled()){
super.close();
return;
}
synchronized(closeLock) {
if (isClosed())
return;
if (created)
impl.close();
closed = true;
}
}
@Override
public ServerSocketChannel getChannel() {
return null; //TODO
}
@Override
public boolean isBound() {
if(!MockFramework.isEnabled()){
return super.isBound();
}
// Before 1.3 ServerSockets were always bound during creation
return bound || oldImpl;
}
@Override
public boolean isClosed() {
if(!MockFramework.isEnabled()){
return super.isClosed();
}
synchronized(closeLock) {
return closed;
}
}
@Override
public synchronized void setSoTimeout(int timeout) throws SocketException {
if(!MockFramework.isEnabled()){
super.setSoTimeout(timeout);
return;
}
if (isClosed())
throw new SocketException("Socket is closed");
getImpl().setOption(SocketOptions.SO_TIMEOUT, new Integer(timeout));
}
@Override
public synchronized int getSoTimeout() throws IOException {
if(!MockFramework.isEnabled()){
return super.getSoTimeout();
}
if (isClosed())
throw new SocketException("Socket is closed");
Object o = getImpl().getOption(SocketOptions.SO_TIMEOUT);
/* extra type safety */
if (o instanceof Integer) {
return ((Integer) o).intValue();
} else {
return 0;
}
}
@Override
public void setReuseAddress(boolean on) throws SocketException {
if(!MockFramework.isEnabled()){
super.setReuseAddress(on);
return;
}
if (isClosed())
throw new SocketException("Socket is closed");
getImpl().setOption(SocketOptions.SO_REUSEADDR, Boolean.valueOf(on));
}
@Override
public boolean getReuseAddress() throws SocketException {
if(!MockFramework.isEnabled()){
return super.getReuseAddress();
}
if (isClosed())
throw new SocketException("Socket is closed");
return ((Boolean) (getImpl().getOption(SocketOptions.SO_REUSEADDR))).booleanValue();
}
@Override
public String toString() {
if(!MockFramework.isEnabled()){
return super.toString();
}
if (!isBound())
return "ServerSocket[unbound]";
InetAddress in = impl.getInetAddress();
return "ServerSocket[addr=" + in + ",localport=" + impl.getLocalPort() + "]";
}
@Override
public synchronized void setReceiveBufferSize (int size) throws SocketException {
super.setReceiveBufferSize(size);
}
@Override
public synchronized int getReceiveBufferSize() throws SocketException{
return super.getReceiveBufferSize();
}
@Override
public void setPerformancePreferences(int connectionTime,
int latency,
int bandwidth){
super.setPerformancePreferences(connectionTime, latency, bandwidth);
}
}
