// function to do the join use case
public static void share() throws Exception {
HttpPost method = new HttpPost(url + "/share");
String ipAddress = null;
Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces();
while (en.hasMoreElements()) {
NetworkInterface ni = (NetworkInterface) en.nextElement();
if (ni.getName().equals("eth0")) {
Enumeration<InetAddress> en2 = ni.getInetAddresses();
while (en2.hasMoreElements()) {
InetAddress ip = (InetAddress) en2.nextElement();
if (ip instanceof Inet4Address) {
ipAddress = ip.getHostAddress();
break;
}
}
break;
}
}
method.setEntity(new StringEntity(username + ';' + ipAddress, "UTF-8"));
try {
ResponseHandler<String> responseHandler = new BasicResponseHandler();
connIp = client.execute(method, responseHandler);
} catch (IOException e) {
System.err.println("Fatal transport error: " + e.getMessage());
e.printStackTrace();
}
// get present time
date = new Date();
long start = date.getTime();
// Execute the vishwa share process
Process p = Runtime.getRuntime().exec("java -jar vishwa/JVishwa.jar " + connIp);
String ch = "alive";
System.out.println("Type kill to unjoin from the grid");
while (!ch.equals("kill")) {
BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
ch = in.readLine();
}
p.destroy();
date = new Date();
long end = date.getTime();
long durationInt = end - start;
String duration = String.valueOf(durationInt);
method = new HttpPost(url + "/shareAck");
method.setEntity(new StringEntity(username + ";" + duration, "UTF-8"));
try {
client.execute(method);
} catch (IOException e) {
System.err.println("Fatal transport error: " + e.getMessage());
e.printStackTrace();
}
}
private Core() {
boolean f = false;
try {
for (Enumeration en = NetworkInterface.getNetworkInterfaces(); en.hasMoreElements(); ) {
NetworkInterface intf = (NetworkInterface) en.nextElement();
for (Enumeration enumIpAddr = intf.getInetAddresses(); enumIpAddr.hasMoreElements(); ) {
InetAddress inetAddress = (InetAddress) enumIpAddr.nextElement();
if (!inetAddress.isLoopbackAddress() && inetAddress instanceof Inet4Address) {
String ipAddress = inetAddress.getHostAddress().toString();
this.ip = inetAddress;
f = true;
break;
}
}
if (f) break;
}
} catch (SocketException ex) {
ex.printStackTrace();
System.exit(1);
}
this.teams = new HashMap<String, Team>();
this.judges = new HashMap<String, Judge>();
this.problems = new HashMap<String, ProblemInfo>();
this.scheduler = new Scheduler();
this.timer = new ContestTimer(300 * 60);
try {
readConfigure();
} catch (FileNotFoundException e) {
e.printStackTrace();
System.exit(1);
}
this.scoreBoardHttpServer = new ScoreBoardHttpServer(this.scoreBoardPort);
}
static String serverAddresses() throws SocketException {
String ipaddrs = "127.0.0.1";
NetworkInterface ni = NetworkInterface.getByName("en0");
if (ni != null)
for (Enumeration<InetAddress> e = ni.getInetAddresses(); e.hasMoreElements(); )
ipaddrs += " " + e.nextElement().getHostAddress();
return ipaddrs; // should return space separated ip addresses serverSocket is listening on
}
/**
* Returns an InetAddress instance that represents the localhost, and that a socket can bind upon
* or distribute to peers as a contact address.
*
* @param intendedDestination the destination that we'd like to use the localhost address with.
* @return an InetAddress instance representing the local host, and that a socket can bind upon or
* distribute to peers as a contact address.
*/
public synchronized InetAddress getLocalHost(InetAddress intendedDestination) {
// no point in making sure that the localHostFinderSocket is initialized.
// better let it through a NullPointerException.
InetAddress localHost = null;
localHostFinderSocket.connect(intendedDestination, this.RANDOM_ADDR_DISC_PORT);
localHost = localHostFinderSocket.getLocalAddress();
localHostFinderSocket.disconnect();
// windows socket implementations return the any address so we need to
// find something else here ... InetAddress.getLocalHost seems to work
// better on windows so lets hope it'll do the trick.
if (localHost.isAnyLocalAddress()) {
try {
// all that's inside the if is an ugly IPv6 hack
// (good ol' IPv6 - always causing more problems than it solves.)
if (intendedDestination instanceof Inet6Address) {
// return the first globally routable ipv6 address we find
// on the machine (and hope it's a good one)
Enumeration interfaces = NetworkInterface.getNetworkInterfaces();
while (interfaces.hasMoreElements()) {
NetworkInterface iface = (NetworkInterface) interfaces.nextElement();
Enumeration addresses = iface.getInetAddresses();
while (addresses.hasMoreElements()) {
InetAddress address = (InetAddress) addresses.nextElement();
if (address instanceof Inet6Address) {
if (!address.isAnyLocalAddress()
&& !address.isLinkLocalAddress()
&& !address.isSiteLocalAddress()
&& !address.isLoopbackAddress()) {
return address;
}
}
}
}
} else localHost = InetAddress.getLocalHost();
/** @todo test on windows for ipv6 cases */
} catch (Exception ex) {
// sigh ... ok return 0.0.0.0
logger.warn("Failed to get localhost ", ex);
}
}
return localHost;
}
static void displayInfo(NetworkInterface netint) throws IOException {
inetAddresses = netint.getInterfaceAddresses();
System.out.println("some information about my link:");
System.out.printf("Display name: %s\n", netint.getDisplayName());
System.out.printf("Name: %s\n", netint.getName());
System.out.printf("Up? %s\n", netint.isUp());
System.out.printf("Loopback? %s\n", netint.isLoopback());
System.out.printf("PointToPoint? %s\n", netint.isPointToPoint());
System.out.printf("Supports multicast? %s\n", netint.supportsMulticast());
System.out.printf("Virtual? %s\n", netint.isVirtual());
System.out.printf("Hardware address: %s\n", Arrays.toString(netint.getHardwareAddress()));
System.out.printf("MTU: %s\n", netint.getMTU());
System.out.printf("\n");
System.out.println(
"my ip address is: " + ((InterfaceAddress) inetAddresses.get(0)).getAddress());
System.out.println(
"the sunnetmask address is: "
+ ((InterfaceAddress) inetAddresses.get(0)).getNetworkPrefixLength());
System.out.println("the broadcast address of this subnet is:" + bcid);
}
public String getLocalIpAddress() {
try {
for (Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces();
en.hasMoreElements(); ) {
NetworkInterface intf = en.nextElement();
for (Enumeration<InetAddress> enumIpAddr = intf.getInetAddresses();
enumIpAddr.hasMoreElements(); ) {
InetAddress inetAddress = enumIpAddr.nextElement();
// if (!inetAddress.isLoopbackAddress() && !inetAddress.isLinkLocalAddress() &&
// inetAddress.isSiteLocalAddress() ) {
if (!inetAddress.isLoopbackAddress()
&& InetAddressUtils.isIPv4Address(inetAddress.getHostAddress())) {
String ipAddr = inetAddress.getHostAddress();
return ipAddr;
}
}
}
} catch (SocketException ex) {
Log.d(TAG, ex.toString());
}
return null;
}
public static void main(String[] args) {
try {
Enumeration<NetworkInterface> nets = NetworkInterface.getNetworkInterfaces();
for (NetworkInterface netint : Collections.list(nets)) displayInfo(netint);
pinging();
} catch (java.net.SocketException s) {
System.out.print('/'); //
System.exit(0);
} catch (IOException e) {
e
.printStackTrace(); // To change body of catch statement use File | Settings | File
// Templates.
}
}
@PostConstruct
public void getHostAdderesAndConnectToMS() {
try {
Enumeration e = NetworkInterface.getNetworkInterfaces();
while (e.hasMoreElements()) {
NetworkInterface n = (NetworkInterface) e.nextElement();
Enumeration ee = n.getInetAddresses();
while (ee.hasMoreElements()) {
InetAddress i = (InetAddress) ee.nextElement();
if (i.getHostAddress().contains("10.") || i.getHostAddress().contains("192.")) {
hostAdder = i.getHostAddress().trim();
System.out.println("Run at start. IP:" + hostAdder);
if (masterService.connectPS(hostAdder) == FAILED) {
System.out.println("Could not connect to MS. Shutting down");
System.exit(0);
}
return;
}
}
}
} catch (Exception e) {
}
}
public static void showNIC() {
// http://www.informatik-blog.net/2009/01/28/informationen-der-netzwerkkarten-auslesen/
try {
Enumeration<NetworkInterface> interfaceNIC = NetworkInterface.getNetworkInterfaces();
// Alle Schnittstellen durchlaufen
while (interfaceNIC.hasMoreElements()) {
// Elemente abfragen und ausgeben
NetworkInterface n = interfaceNIC.nextElement();
System.out.println(
String.format("Netzwerk-Interface: %s (%s)", n.getName(), n.getDisplayName()));
// Adressen abrufen
Enumeration<InetAddress> addresses = n.getInetAddresses();
// Adressen durchlaufen
while (addresses.hasMoreElements()) {
InetAddress address = addresses.nextElement();
System.out.println(String.format("- %s", address.getHostAddress()));
}
}
System.out.println();
} catch (SocketException e) {
e.printStackTrace();
}
}
/** @return */
public static String getIPv4Address() {
String ipv4address = null;
try {
final List<NetworkInterface> networkinterfaces =
Collections.list(NetworkInterface.getNetworkInterfaces());
for (final NetworkInterface networkinterface : networkinterfaces) {
final List<InetAddress> addresses = Collections.list(networkinterface.getInetAddresses());
for (final InetAddress address : addresses) {
if ((address == null) || address.isLoopbackAddress()) {
continue;
}
if (address instanceof Inet4Address) {
ipv4address = address.getHostAddress().toString();
break;
}
}
}
} catch (Exception x) {
DBG.m(x);
}
return ipv4address;
}
/**
* Get IP address from first non-localhost interface
*
* @param ipv4 true=return ipv4, false=return ipv6
* @return address or empty string
*/
public static String getIPAddress(boolean useIPv4) {
try {
List<NetworkInterface> interfaces = Collections.list(NetworkInterface.getNetworkInterfaces());
for (NetworkInterface intf : interfaces) {
List<InetAddress> addrs = Collections.list(intf.getInetAddresses());
for (InetAddress addr : addrs) {
if (!addr.isLoopbackAddress()) {
String sAddr = addr.getHostAddress().toUpperCase();
boolean isIPv4 = InetAddressUtils.isIPv4Address(sAddr);
if (useIPv4) {
if (isIPv4) return sAddr;
} else {
if (!isIPv4) {
int delim = sAddr.indexOf('%'); // drop ip6 port suffix
return delim < 0 ? sAddr : sAddr.substring(0, delim);
}
}
}
}
}
} catch (Exception ex) {
} // for now eat exceptions
return "";
}
/**
* Discover WS device on the local network
*
* @return list of unique devices access strings which might be URLs in most cases
*/
public static Collection<String> discoverWsDevices() {
final Collection<String> addresses = new ConcurrentSkipListSet<>();
final CountDownLatch serverStarted = new CountDownLatch(1);
final CountDownLatch serverFinished = new CountDownLatch(1);
final Collection<InetAddress> addressList = new ArrayList<>();
try {
final Enumeration<NetworkInterface> interfaces = NetworkInterface.getNetworkInterfaces();
if (interfaces != null) {
while (interfaces.hasMoreElements()) {
NetworkInterface anInterface = interfaces.nextElement();
if (!anInterface.isLoopback()) {
final List<InterfaceAddress> interfaceAddresses = anInterface.getInterfaceAddresses();
for (InterfaceAddress address : interfaceAddresses) {
addressList.add(address.getAddress());
}
}
}
}
} catch (SocketException e) {
e.printStackTrace();
}
ExecutorService executorService = Executors.newCachedThreadPool();
for (final InetAddress address : addressList) {
Runnable runnable =
new Runnable() {
public void run() {
try {
final String uuid = UUID.randomUUID().toString();
final String probe =
WS_DISCOVERY_PROBE_MESSAGE.replaceAll(
"<wsa:MessageID>urn:uuid:.*</wsa:MessageID>",
"<wsa:MessageID>urn:uuid:" + uuid + "</wsa:MessageID>");
final int port = random.nextInt(20000) + 40000;
@SuppressWarnings("SocketOpenedButNotSafelyClosed")
final DatagramSocket server = new DatagramSocket(port, address);
new Thread() {
public void run() {
try {
final DatagramPacket packet = new DatagramPacket(new byte[4096], 4096);
server.setSoTimeout(WS_DISCOVERY_TIMEOUT);
long timerStarted = System.currentTimeMillis();
while (System.currentTimeMillis() - timerStarted < (WS_DISCOVERY_TIMEOUT)) {
serverStarted.countDown();
server.receive(packet);
final Collection<String> collection =
parseSoapResponseForUrls(
Arrays.copyOf(packet.getData(), packet.getLength()));
for (String key : collection) {
addresses.add(key);
}
}
} catch (SocketTimeoutException ignored) {
} catch (Exception e) {
e.printStackTrace();
} finally {
serverFinished.countDown();
server.close();
}
}
}.start();
try {
serverStarted.await(1000, TimeUnit.MILLISECONDS);
} catch (InterruptedException e) {
e.printStackTrace();
}
if (address instanceof Inet4Address) {
server.send(
new DatagramPacket(
probe.getBytes(),
probe.length(),
InetAddress.getByName(WS_DISCOVERY_ADDRESS_IPv4),
WS_DISCOVERY_PORT));
} else {
server.send(
new DatagramPacket(
probe.getBytes(),
probe.length(),
InetAddress.getByName(WS_DISCOVERY_ADDRESS_IPv6),
WS_DISCOVERY_PORT));
}
} catch (Exception e) {
e.printStackTrace();
}
try {
serverFinished.await((WS_DISCOVERY_TIMEOUT), TimeUnit.MILLISECONDS);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
};
executorService.submit(runnable);
}
try {
executorService.shutdown();
executorService.awaitTermination(WS_DISCOVERY_TIMEOUT + 2000, TimeUnit.MILLISECONDS);
} catch (InterruptedException ignored) {
}
return addresses;
}
public void run() {
try {
this.serverSocket = new ServerSocket(Settings.getPropertyInteger("server_port"));
} catch (Exception e) {
Logger.log(
Level.WARNING,
Messages.getString("can_not_open_port_", Settings.getLocale())
+ Settings.getPropertyInteger("server_port"));
if (FancyFileServer.getGUI() != null) {
FancyFileServer.getGUI().updateServerStatus();
}
return;
}
running = true;
this.parameters = new BasicHttpParams();
this.parameters.setIntParameter(HttpConnectionParams.SO_TIMEOUT, 5000);
this.parameters.setIntParameter(HttpConnectionParams.SOCKET_BUFFER_SIZE, 8 * 1024);
this.parameters.setBooleanParameter(HttpConnectionParams.STALE_CONNECTION_CHECK, false);
this.parameters.setBooleanParameter(HttpConnectionParams.TCP_NODELAY, true);
this.parameters.setParameter(
HttpProtocolParams.ORIGIN_SERVER,
FancyFileServer.NAME.replaceAll("\\s", "-") + "/" + FancyFileServer.VERSION);
Logger.log(Level.INFO, Messages.getString("server_started", Settings.getLocale()));
try {
Enumeration<NetworkInterface> interfaces = NetworkInterface.getNetworkInterfaces();
while (interfaces.hasMoreElements()) {
NetworkInterface i = (NetworkInterface) interfaces.nextElement();
if (i.isLoopback() || i.isVirtual()) {
continue;
}
Enumeration<InetAddress> addresses = i.getInetAddresses();
while (addresses.hasMoreElements()) {
InetAddress a = (InetAddress) addresses.nextElement();
if (a instanceof Inet4Address) {
Logger.log(
Level.INFO,
Messages.getString("server_address_", Settings.getLocale())
+ "http://"
+ a.getHostAddress()
+ ":"
+ serverSocket.getLocalPort()
+ "/");
}
}
}
} catch (Exception e) {
Logger.log(
Level.WARNING,
Messages.getString("can_not_get_server_address_", Settings.getLocale()) + e.getMessage());
}
if (FancyFileServer.getGUI() != null) {
FancyFileServer.getGUI().updateServerStatus();
}
while (running) {
try {
/** Set up HTTP connection */
Socket socket = this.serverSocket.accept();
DefaultHttpServerConnection connection = new DefaultHttpServerConnection();
Logger.log(
Level.DEBUG,
Messages.getString("incoming_connection_from_", Settings.getLocale())
+ socket.getInetAddress().getHostAddress());
connection.bind(socket, this.parameters);
/** Set up HTTP protocol processor */
BasicHttpProcessor processor = new BasicHttpProcessor();
processor.addInterceptor(new ResponseDate());
processor.addInterceptor(new ResponseServer());
processor.addInterceptor(new ResponseContent());
processor.addInterceptor(new ResponseConnControl());
/** Set up HTTP request handlers */
HttpRequestHandlerRegistry registry = new HttpRequestHandlerRegistry();
registry.register("*", new FileHandler());
/** Set up HTTP service */
HttpService service =
new HttpService(
processor,
new DefaultConnectionReuseStrategy(),
new DefaultHttpResponseFactory(),
registry,
this.parameters);
/** Start worker thread */
WorkerThread t = new WorkerThread(this, service, connection);
t.setDaemon(true);
t.start();
} catch (IOException e) {
if (running) {
running = false;
Logger.log(
Level.SEVERE,
Messages.getString("i_o_error_", Settings.getLocale()) + e.getMessage());
break;
}
}
}
if (FancyFileServer.getGUI() != null) {
FancyFileServer.getGUI().updateServerStatus();
}
Logger.log(Level.INFO, Messages.getString("server_stopped", Settings.getLocale()));
}
