/**
* Initiator and target should successfully connect to the local SOCKS5 proxy.
*
* @throws Exception should not happen
*/
@Test
public void shouldSuccessfullyConnectThroughLocalSocks5Proxy() throws Exception {
// start a local SOCKS5 proxy
Socks5Proxy.setLocalSocks5ProxyPort(proxyPort);
Socks5Proxy socks5Proxy = Socks5Proxy.getSocks5Proxy();
socks5Proxy.start();
// test data
final byte[] data = new byte[] {1, 2, 3};
// create digest
final String digest = Socks5Utils.createDigest(sessionID, initiatorJID, targetJID);
// allow connection of target with this digest
socks5Proxy.addTransfer(digest);
// build stream host information
final StreamHost streamHost =
new StreamHost(connection.getUser(), socks5Proxy.getLocalAddresses().get(0));
streamHost.setPort(socks5Proxy.getPort());
// target connects to local SOCKS5 proxy
Thread targetThread =
new Thread() {
@Override
public void run() {
try {
Socks5Client targetClient = new Socks5Client(streamHost, digest);
Socket socket = targetClient.getSocket(10000);
socket.getOutputStream().write(data);
} catch (Exception e) {
fail(e.getMessage());
}
}
};
targetThread.start();
Thread.sleep(200);
// initiator connects
Socks5ClientForInitiator socks5Client =
new Socks5ClientForInitiator(streamHost, digest, connection, sessionID, targetJID);
Socket socket = socks5Client.getSocket(10000);
// verify test data
InputStream in = socket.getInputStream();
for (int i = 0; i < data.length; i++) {
assertEquals(data[i], in.read());
}
targetThread.join();
protocol.verifyAll(); // assert no XMPP messages were sent
socks5Proxy.removeTransfer(digest);
socks5Proxy.stop();
}
/**
* If the target is not connected to the local SOCKS5 proxy an exception should be thrown.
*
* @throws Exception should not happen
*/
@Test
public void shouldFailIfTargetIsNotConnectedToLocalSocks5Proxy() throws Exception {
// start a local SOCKS5 proxy
Socks5Proxy.setLocalSocks5ProxyPort(proxyPort);
Socks5Proxy socks5Proxy = Socks5Proxy.getSocks5Proxy();
socks5Proxy.start();
// build stream host information for local SOCKS5 proxy
StreamHost streamHost =
new StreamHost(connection.getUser(), socks5Proxy.getLocalAddresses().get(0));
streamHost.setPort(socks5Proxy.getPort());
// create digest to get the socket opened by target
String digest = Socks5Utils.createDigest(sessionID, initiatorJID, targetJID);
Socks5ClientForInitiator socks5Client =
new Socks5ClientForInitiator(streamHost, digest, connection, sessionID, targetJID);
try {
socks5Client.getSocket(10000);
fail("exception should be thrown");
} catch (SmackException e) {
assertTrue(e.getMessage().contains("target is not connected to SOCKS5 proxy"));
protocol.verifyAll(); // assert no XMPP messages were sent
}
socks5Proxy.stop();
}
private IByteStreamConnection connectInternal(String connectionID, JID peer) throws IOException {
IByteStreamConnection connection = null;
final String connectionIDToken = toConnectionIDToken(connectionID, OUT, peer);
synchronized (currentOutgoingConnectionEstablishments) {
if (!currentOutgoingConnectionEstablishments.contains(connectionIDToken)) {
connection = getCurrentConnection(connectionID, peer);
if (connection == null) currentOutgoingConnectionEstablishments.add(connectionIDToken);
}
if (connection != null) return connection;
}
connectLock.lock();
try {
connection = getCurrentConnection(connectionID, peer);
if (connection != null) return connection;
JID connectionJID = currentLocalJID;
if (connectionJID == null) throw new IOException("not connected to a XMPP server");
ArrayList<ITransport> transportModesToUse = new ArrayList<ITransport>(availableTransports);
LOG.debug(
"currently used IP addresses for Socks5Proxy: "
+ Arrays.toString(Socks5Proxy.getSocks5Proxy().getLocalAddresses().toArray()));
for (ITransport transport : transportModesToUse) {
LOG.info(
"establishing connection to "
+ peer.getBase()
+ " from "
+ connectionJID
+ " using "
+ transport);
try {
connection = transport.connect(connectionID, peer);
break;
} catch (IOException e) {
LOG.error(peer + " failed to connect using " + transport + ": " + e.getMessage(), e);
} catch (InterruptedException e) {
IOException io = new InterruptedIOException("connecting cancelled: " + e.getMessage());
io.initCause(e);
throw io;
} catch (Exception e) {
LOG.error(
peer
+ " failed to connect using "
+ transport
+ " because of an unknown error: "
+ e.getMessage(),
e);
}
}
if (connection != null) {
byteStreamConnectionListener.connectionChanged(connectionID, peer, connection, false);
return connection;
}
throw new IOException("could not connect to: " + peer);
} finally {
synchronized (currentOutgoingConnectionEstablishments) {
currentOutgoingConnectionEstablishments.remove(connectionIDToken);
}
connectLock.unlock();
}
}
/** Reset default port for local SOCKS5 proxy. */
@After
public void cleanup() {
Socks5Proxy.setLocalSocks5ProxyPort(7777);
}