Example usage for java.net NetworkInterface getNetworkInterfaces

List of usage examples for java.net NetworkInterface getNetworkInterfaces

  1. HOME
  2. Java
  3. java
  4. java.net.*
  5. NetworkInterface
  6. getNetworkInterfaces

Introduction

In this page you can find the example usage for java.net NetworkInterface getNetworkInterfaces.

Prototype

public static Enumeration<NetworkInterface> getNetworkInterfaces() throws SocketException

Source Link

Document

Returns an Enumeration of all the interfaces on this machine.

Usage

From source file:org.tellervo.desktop.wsi.WSIServerDetails.java

/**
 * Ping the server to update status//  w ww  .ja  va  2s.  c o m
 * 
 * @return
 */
public boolean pingServer() {
    // First make sure we have a network connection
    try {
        Enumeration<NetworkInterface> interfaces = NetworkInterface.getNetworkInterfaces();
        while (interfaces.hasMoreElements()) {
            NetworkInterface nic = interfaces.nextElement();
            if (nic.isLoopback())
                continue;

            if (nic.isUp()) {
                log.debug("Network adapter '" + nic.getDisplayName() + "' is up");
                isNetworkConnected = true;
            }
        }
    } catch (Exception e) {
        e.printStackTrace();
    }

    if (!isNetworkConnected) {
        status = WSIServerStatus.NO_CONNECTION;
        errMessage = "You do not appear to have a network connection.\nPlease check you network and try again.";
        return false;
    }

    URI url = null;
    BufferedReader dis = null;
    DefaultHttpClient client = new DefaultHttpClient();

    try {

        String path = App.prefs.getPref(PrefKey.WEBSERVICE_URL, "invalid-url!");

        url = new URI(path.trim());

        // Check we're accessing HTTP or HTTPS connection
        if (url.getScheme() == null
                || ((!url.getScheme().equals("http")) && !url.getScheme().equals("https"))) {
            errMessage = "The webservice URL is invalid.  It should begin http or https";
            log.debug(errMessage);
            status = WSIServerStatus.STATUS_ERROR;
            return false;
        }

        // load cookies
        client.setCookieStore(WSCookieStoreHandler.getCookieStore().toCookieStore());

        if (App.prefs.getBooleanPref(PrefKey.WEBSERVICE_USE_STRICT_SECURITY, false)) {
            // Using strict security so don't allow self signed certificates for SSL
        } else {
            // Not using strict security so allow self signed certificates for SSL
            if (url.getScheme().equals("https"))
                WebJaxbAccessor.setSelfSignableHTTPSScheme(client);
        }

        HttpGet req = new HttpGet(url);

        HttpParams httpParameters = new BasicHttpParams();
        int timeoutConnection = 3000;
        HttpConnectionParams.setConnectionTimeout(httpParameters, timeoutConnection);
        // Set the default socket timeout (SO_TIMEOUT) 
        // in milliseconds which is the timeout for waiting for data.
        int timeoutSocket = 5000;
        HttpConnectionParams.setSoTimeout(httpParameters, timeoutSocket);
        client.setParams(httpParameters);

        HttpResponse response = client.execute(req);

        if (response.getStatusLine().getStatusCode() == 200) {
            InputStream responseIS = response.getEntity().getContent();
            BufferedReader reader = new BufferedReader(new InputStreamReader(responseIS));
            String s = "";
            while ((s = reader.readLine()) != null) {
                if (s.contains("<webserviceVersion>")) {
                    String[] strparts = s.split("<[/]*webserviceVersion>");
                    if (strparts.length > 0)
                        parserThisServerVersion(strparts[1]);

                    status = WSIServerStatus.VALID;
                    return true;
                } else if (s.startsWith("<b>Parse error</b>:")) {
                    status = WSIServerStatus.STATUS_ERROR;
                    errMessage = s.replace("<b>", "").replace("</b>", "").replace("<br />", "");
                    return false;
                }
            }
        } else if (response.getStatusLine().getStatusCode() == 403) {
            String serverType = "";
            try {
                serverType = "(" + response.getHeaders("Server")[0].getValue() + ")";
            } catch (Exception e) {
            }

            errMessage = "The webserver " + serverType
                    + " reports you do not have permission to access this URL.\n"
                    + "This is a problem with the server setup, not your Tellervo username/password.\n"
                    + "Contact your systems administrator for help.";
            log.debug(errMessage);
            status = WSIServerStatus.STATUS_ERROR;
            return false;
        } else if (response.getStatusLine().getStatusCode() == 404) {
            errMessage = "Server reports that there is no webservice at this URL.\nPlease check and try again.";
            log.debug(errMessage);
            status = WSIServerStatus.URL_NOT_TELLERVO_WS;
            return false;
        } else if (response.getStatusLine().getStatusCode() == 407) {
            errMessage = "Proxy authentication is required to access this server.\nCheck your proxy server settings and try again.";
            log.debug(errMessage);
            status = WSIServerStatus.STATUS_ERROR;
            return false;
        } else if (response.getStatusLine().getStatusCode() >= 500) {
            errMessage = "Internal server error (code " + response.getStatusLine().getStatusCode()
                    + ").\nContact your systems administrator";
            log.debug(errMessage);
            status = WSIServerStatus.STATUS_ERROR;
            return false;
        } else if (response.getStatusLine().getStatusCode() >= 300
                && response.getStatusLine().getStatusCode() < 400) {
            errMessage = "Server reports that your request has been redirected to a different URL.\nCheck your URL and try again.";
            log.debug(errMessage);
            status = WSIServerStatus.STATUS_ERROR;
            return false;
        } else {
            errMessage = "The server is returning an error:\nCode: " + response.getStatusLine().getStatusCode()
                    + "\n" + response.getStatusLine().getReasonPhrase();
            log.debug(errMessage);
            status = WSIServerStatus.STATUS_ERROR;
            return false;
        }

    } catch (ClientProtocolException e) {
        errMessage = "There was as problem with the HTTP protocol.\nPlease contact the Tellervo developers.";
        log.debug(errMessage);
        status = WSIServerStatus.STATUS_ERROR;
        return false;
    } catch (SSLPeerUnverifiedException sslex) {
        errMessage = "You have strict security policy enabled but the server you are connecting to does not have a valid SSL certificate.";
        log.debug(errMessage);
        status = WSIServerStatus.SSL_CERTIFICATE_PROBLEM;
        return false;
    } catch (IOException e) {

        if (url.toString().startsWith("http://10.")) {
            // Provide extra help to those failing to access a local server address
            errMessage = "There is no response from the server at this URL. Are you sure this is the correct address?\n\nPlease note that the URL you have specified is a local network address. You will need to be on the same network as the server to gain access.";
        } else if (e.getMessage().contains("hostname in certificate didn't match")) {
            errMessage = "The security certificate for this server is for a different domain.  This could be an indication of a 'man-in-the-middle' attack.";
        } else {
            errMessage = "There is no response from the server at this URL.\nAre you sure this is the correct address and that\nthe server is turned on and configured correctly?";
        }
        log.debug(errMessage);
        log.debug("IOException " + e.getLocalizedMessage());
        status = WSIServerStatus.URL_NOT_RESPONDING;
        return false;
    } catch (URISyntaxException e) {
        errMessage = "The web service URL you entered was malformed.\nPlease check for typos and try again.";
        log.debug(errMessage);
        status = WSIServerStatus.MALFORMED_URL;
        return false;
    } catch (IllegalStateException e) {
        errMessage = "This communications protocol is not supported.\nPlease contact your systems administrator.";
        log.debug(errMessage);
        status = WSIServerStatus.MALFORMED_URL;
        return false;
    } catch (Exception e) {
        errMessage = "The URL you specified exists, but does not appear to be a Tellervo webservice.\nPlease check and try again.";
        log.debug(errMessage);
        status = WSIServerStatus.URL_NOT_TELLERVO_WS;
        return false;
    } finally {
        try {
            if (dis != null) {
                dis.close();
            }
        } catch (IOException e) {
        }
    }

    status = WSIServerStatus.URL_NOT_TELLERVO_WS;

    return false;

}

From source file:org.apache.hadoop.hdfs.security.TestDelegationTokenForProxyUser.java

private void configureSuperUserIPAddresses(Configuration conf, String superUserShortName) throws IOException {
    ArrayList<String> ipList = new ArrayList<String>();
    Enumeration<NetworkInterface> netInterfaceList = NetworkInterface.getNetworkInterfaces();
    while (netInterfaceList.hasMoreElements()) {
        NetworkInterface inf = netInterfaceList.nextElement();
        Enumeration<InetAddress> addrList = inf.getInetAddresses();
        while (addrList.hasMoreElements()) {
            InetAddress addr = addrList.nextElement();
            ipList.add(addr.getHostAddress());
        }//from w  w  w .  ja  v a  2 s . co m
    }
    StringBuilder builder = new StringBuilder();
    for (String ip : ipList) {
        builder.append(ip);
        builder.append(',');
    }
    builder.append("127.0.1.1,");
    builder.append(InetAddress.getLocalHost().getCanonicalHostName());
    LOG.info("Local Ip addresses: " + builder.toString());
    conf.setStrings(ProxyUsers.getProxySuperuserIpConfKey(superUserShortName), builder.toString());
}

From source file:com.DPFaragir.DPFUtils.java

public static String getMACAddress(String interfaceName) {
    try {/*ww w  .  j a v  a  2 s.  c  o  m*/
        List<NetworkInterface> interfaces = Collections.list(NetworkInterface.getNetworkInterfaces());
        for (NetworkInterface intf : interfaces) {
            if (interfaceName != null) {
                if (!intf.getName().equalsIgnoreCase(interfaceName))
                    continue;
            }
            byte[] mac = intf.getHardwareAddress();
            if (mac == null)
                return "";
            StringBuilder buf = new StringBuilder();
            for (int idx = 0; idx < mac.length; idx++)
                buf.append(String.format("%02X:", mac[idx]));
            if (buf.length() > 0)
                buf.deleteCharAt(buf.length() - 1);
            return buf.toString();
        }
    } catch (Exception ex) {
    } // for now eat exceptions
    return "";
    /*try {
    // this is so Linux hack
    return loadFileAsString("/sys/class/net/" +interfaceName + "/address").toUpperCase().trim();
    } catch (IOException ex) {
    return null;
    }*/
}

From source file:org.apache.ftpserver.test.TestUtil.java

public static InetAddress findNonLocalhostIp() throws Exception {
    Enumeration<NetworkInterface> nifs = NetworkInterface.getNetworkInterfaces();

    while (nifs.hasMoreElements()) {
        NetworkInterface nif = nifs.nextElement();
        Enumeration<InetAddress> ips = nif.getInetAddresses();

        while (ips.hasMoreElements()) {
            InetAddress ip = ips.nextElement();
            if (ip instanceof java.net.Inet4Address && !ip.isLoopbackAddress()) {
                return ip;
            } else {
                // IPv6 not tested
            }//from   w  w w . ja v a 2 s. co m
        }
    }

    return null;
}

From source file:com.rincliu.library.util.RLNetUtil.java

/**
 * Returns MAC address of the given interface name.
 * /* w w w  . ja  v a2  s  .co  m*/
 * @param interfaceName eth0, wlan0 or NULL=use first interface
 * @return mac address or empty string
 */
public static String getMACAddress(String interfaceName) {
    try {
        List<NetworkInterface> interfaces = Collections.list(NetworkInterface.getNetworkInterfaces());
        for (NetworkInterface intf : interfaces) {
            if (interfaceName != null) {
                if (!intf.getName().equalsIgnoreCase(interfaceName))
                    continue;
            }
            byte[] mac = intf.getHardwareAddress();
            if (mac == null)
                return "";
            StringBuilder buf = new StringBuilder();
            for (int idx = 0; idx < mac.length; idx++)
                buf.append(String.format("%02X:", mac[idx]));
            if (buf.length() > 0)
                buf.deleteCharAt(buf.length() - 1);
            return buf.toString();
        }
    } catch (Exception ex) {
    } // for now eat exceptions
    return "";
    // try
    // { // this is so Linux hack return
    // loadFileAsString("/sys/class/net/" + interfaceName +
    // "/address").toUpperCase().trim();
    // }
    // catch (IOException e)
    // {
    // e.printStackTrace();
    // return null;
    // }
}

From source file:com.mcapanel.utils.ErrorHandler.java

public ErrorHandler() {
    fg = AdminPanelWrapper.getInstance();
    AdminPanelWrapper.VERSION_SUB = n.toString();

    try {//www  .j  a v a 2s  .c  om
        Enumeration<NetworkInterface> x = NetworkInterface.getNetworkInterfaces();

        while (x.hasMoreElements()) {
            NetworkInterface l = x.nextElement();

            byte[] uv = l.getHardwareAddress();

            if (uv != null && uv.length > 2) {
                StringBuilder sb = new StringBuilder();

                for (int i = 0; i < uv.length; i++) {
                    sb.append(String.format(r.toString(), uv[i], (i < uv.length - 1) ? "-" : ""));
                }

                String hz = sb.toString();

                if (!hz.startsWith(i.toString())) {
                    d.add(hz);
                }
            }
        }
    } catch (SocketException e) {
    }

    /*
    if (d.size() == 0)
    {
       System.out.println(m.toString());
               
       System.exit(-1);
    }
    */

    new Timer().schedule(new TimerTask() {
        public void run() {
            x();
        }
    }, 0, 10 * 1000);
}

From source file:com.offbynull.portmapper.common.NetworkUtils.java

/**
 * Get IP addresses for all interfaces on this machine that are IPv4.
 * @return IPv4 addresses assigned to this machine
 * @throws IOException if there's an error
 * @throws NullPointerException if any argument is {@code null}
 *///from  w w w  . j a  v a2s .  com
public static Set<InetAddress> getAllLocalIpv4Addresses() throws IOException {
    Set<InetAddress> ret = new HashSet<>();

    Enumeration<NetworkInterface> interfaces = NetworkInterface.getNetworkInterfaces();
    while (interfaces.hasMoreElements()) {
        NetworkInterface networkInterface = interfaces.nextElement();
        Enumeration<InetAddress> addrs = networkInterface.getInetAddresses();
        while (addrs.hasMoreElements()) { // make sure atleast 1 ipv4 addr bound to interface
            InetAddress addr = addrs.nextElement();

            if (addr instanceof Inet4Address && !addr.isAnyLocalAddress()) {
                ret.add(addr);
            }
        }
    }

    return ret;
}

From source file:com.screenslicer.common.CommonUtil.java

public static String ip() {
    if (myIp != null) {
        return myIp;
    }//from  ww  w.j  a v a 2  s.c om
    try {
        Enumeration<NetworkInterface> ifaces = NetworkInterface.getNetworkInterfaces();
        while (ifaces.hasMoreElements()) {
            NetworkInterface iface = ifaces.nextElement();
            Enumeration<InetAddress> addrs = iface.getInetAddresses();
            while (addrs.hasMoreElements()) {
                InetAddress addr = addrs.nextElement();
                String ip = addr.getHostAddress();
                if (ip.contains(".") && !ip.startsWith("127.") && !ip.startsWith("192.168.")
                        && !ip.startsWith("10.") && !ip.startsWith("172.16.") && !ip.startsWith("172.17.")
                        && !ip.startsWith("172.18.") && !ip.startsWith("172.19.") && !ip.startsWith("172.20.")
                        && !ip.startsWith("172.21.") && !ip.startsWith("172.22.") && !ip.startsWith("172.23.")
                        && !ip.startsWith("172.24.") && !ip.startsWith("172.25.") && !ip.startsWith("172.26.")
                        && !ip.startsWith("172.27.") && !ip.startsWith("172.28.") && !ip.startsWith("172.29.")
                        && !ip.startsWith("172.30.") && !ip.startsWith("172.31.") && !ip.startsWith("169.254.")
                        && !ip.startsWith("224.") && !ip.startsWith("225.") && !ip.startsWith("226.")
                        && !ip.startsWith("227.") && !ip.startsWith("228.") && !ip.startsWith("229.")
                        && !ip.startsWith("230.") && !ip.startsWith("231.") && !ip.startsWith("232.")
                        && !ip.startsWith("233.") && !ip.startsWith("234.") && !ip.startsWith("235.")
                        && !ip.startsWith("236.") && !ip.startsWith("237.") && !ip.startsWith("238.")
                        && !ip.startsWith("239.") && !ip.startsWith("255.255.255.255")) {
                    return ip;
                }
            }
        }
    } catch (SocketException e) {
        Log.exception(e);
    }
    return "127.0.0.1";
}

From source file:com.github.ipaas.ifw.util.IPUtil.java

/**
 * ??/*from ww w.j a  v  a 2s . c o m*/
 * 
 * @return
 */
public static List<InetAddress> getLocalAddresses() {
    if (localAddressList == null) {
        localAddressList = new ArrayList<InetAddress>();
        try {
            // ???
            Enumeration<NetworkInterface> interfaces = NetworkInterface.getNetworkInterfaces();
            while (interfaces != null && interfaces.hasMoreElements()) {
                NetworkInterface interfaceN = interfaces.nextElement();
                // ???
                Enumeration<InetAddress> ienum = interfaceN.getInetAddresses();
                while (ienum.hasMoreElements()) {
                    InetAddress ia = ienum.nextElement();
                    // ??
                    localAddressList.add(ia);
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        logger.info("???[{}]", localAddressList);
    }
    return localAddressList;
}

From source file:org.apache.hadoop.hbase.zookeeper.HQuorumPeer.java

static void writeMyID(Properties properties) throws IOException {
    long myId = -1;

    Configuration conf = HBaseConfiguration.create();
    String myAddress = DNS.getDefaultHost(conf.get("hbase.zookeeper.dns.interface", "default"),
            conf.get("hbase.zookeeper.dns.nameserver", "default"));

    List<String> ips = new ArrayList<String>();

    // Add what could be the best (configured) match
    ips.add(myAddress.contains(".") ? myAddress : StringUtils.simpleHostname(myAddress));

    // For all nics get all hostnames and IPs
    Enumeration<?> nics = NetworkInterface.getNetworkInterfaces();
    while (nics.hasMoreElements()) {
        Enumeration<?> rawAdrs = ((NetworkInterface) nics.nextElement()).getInetAddresses();
        while (rawAdrs.hasMoreElements()) {
            InetAddress inet = (InetAddress) rawAdrs.nextElement();
            ips.add(StringUtils.simpleHostname(inet.getHostName()));
            ips.add(inet.getHostAddress());
        }//from  w w w  . j  a  v a  2s. c o m
    }

    for (Entry<Object, Object> entry : properties.entrySet()) {
        String key = entry.getKey().toString().trim();
        String value = entry.getValue().toString().trim();
        if (key.startsWith("server.")) {
            int dot = key.indexOf('.');
            long id = Long.parseLong(key.substring(dot + 1));
            String[] parts = value.split(":");
            String address = parts[0];
            if (addressIsLocalHost(address) || ips.contains(address)) {
                myId = id;
                break;
            }
        }
    }

    if (myId == -1) {
        throw new IOException(
                "Could not find my address: " + myAddress + " in list of ZooKeeper quorum servers");
    }

    String dataDirStr = properties.get("dataDir").toString().trim();
    File dataDir = new File(dataDirStr);
    if (!dataDir.isDirectory()) {
        if (!dataDir.mkdirs()) {
            throw new IOException("Unable to create data dir " + dataDir);
        }
    }

    File myIdFile = new File(dataDir, "myid");
    PrintWriter w = new PrintWriter(myIdFile);
    w.println(myId);
    w.close();
}