Java Code Examples for java.net.InetAddress#isSiteLocalAddress()

The following examples show how to use java.net.InetAddress#isSiteLocalAddress() . These examples are extracted from open source projects. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may want to check out the right sidebar which shows the related API usage.
Example 1
public static String getHostName() throws SocketException {
  	Enumeration<NetworkInterface> e = NetworkInterface.getNetworkInterfaces();
while(e.hasMoreElements())
{
    NetworkInterface n = (NetworkInterface) e.nextElement();
    Enumeration<InetAddress> ee = n.getInetAddresses();
    while (ee.hasMoreElements())
    {
        InetAddress i = (InetAddress) ee.nextElement();
        if (!i.isSiteLocalAddress() && !i.isLinkLocalAddress() && !i.isLoopbackAddress() && !i.isAnyLocalAddress() && !i.isMulticastAddress()) {
        	return i.getHostName();
        }
    }
}
throw new SocketException("Failed to get the IP address for the local host");
  }
 
Example 2
Source Project: react-native-sockets   File: SocketsModule.java    License: MIT License 6 votes vote down vote up
@ReactMethod
public void getIpAddress(Callback successCallback, Callback errorCallback) {
    WritableArray ipList = Arguments.createArray();
    try {
        Enumeration<NetworkInterface> enumNetworkInterfaces = NetworkInterface.getNetworkInterfaces();
        while (enumNetworkInterfaces.hasMoreElements()) {
            NetworkInterface networkInterface = enumNetworkInterfaces.nextElement();
            Enumeration<InetAddress> enumInetAddress = networkInterface.getInetAddresses();
            while (enumInetAddress.hasMoreElements()) {
                InetAddress inetAddress = enumInetAddress.nextElement();
                if (inetAddress.isSiteLocalAddress()) {
                    ipList.pushString(inetAddress.getHostAddress());
                }
            }
        }
    } catch (SocketException e) {
        Log.e(eTag, "getIpAddress SocketException", e);
        errorCallback.invoke(e.getMessage());
    }
    successCallback.invoke(ipList);
}
 
Example 3
Source Project: diamond   File: SystemConfig.java    License: Apache License 2.0 6 votes vote down vote up
private static String getHostAddress() {
    String address = "127.0.0.1";
    try {
        Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces();
        while (en.hasMoreElements()) {
            NetworkInterface ni = en.nextElement();
            Enumeration<InetAddress> ads = ni.getInetAddresses();
            while (ads.hasMoreElements()) {
                InetAddress ip = ads.nextElement();
                if (!ip.isLoopbackAddress() && ip.isSiteLocalAddress()) {
                    return ip.getHostAddress();
                }
            }
        }
    }
    catch (Exception e) {
    }
    return address;
}
 
Example 4
Source Project: blockchain   File: CommonUtils.java    License: MIT License 6 votes vote down vote up
/**
 * 获得外网IP
 * 
 * @return 外网IP
 */
public static String getInternetIp() {
	try {
		Enumeration<NetworkInterface> networks = NetworkInterface.getNetworkInterfaces();
		InetAddress ip = null;
		Enumeration<InetAddress> addrs;
		while (networks.hasMoreElements()) {
			addrs = networks.nextElement().getInetAddresses();
			while (addrs.hasMoreElements()) {
				ip = addrs.nextElement();
				if (ip != null && ip instanceof Inet4Address && ip.isSiteLocalAddress()
						&& !ip.getHostAddress().equals(INTRANET_IP)) {
					return ip.getHostAddress();
				}
			}
		}

		// 如果没有外网IP,就返回内网IP
		return INTRANET_IP;
	} catch (Exception e) {
		throw new RuntimeException(e);
	}
}
 
Example 5
Source Project: liteflow   File: IpUtils.java    License: Apache License 2.0 6 votes vote down vote up
/**
 * 获取本地ip
 *
 * @return
 */
private static String getLocalIp() {
    try {
        Enumeration<NetworkInterface> networkInterfaces = NetworkInterface.getNetworkInterfaces();
        while (networkInterfaces.hasMoreElements()) {
            NetworkInterface networkInterface = networkInterfaces.nextElement();
            Enumeration<InetAddress> inetAddresses = networkInterface.getInetAddresses();
            while (inetAddresses.hasMoreElements()) {
                InetAddress inetAddress = inetAddresses.nextElement();
                if (inetAddress.isSiteLocalAddress()) {
                    return inetAddress.getHostAddress();
                }
            }
        }
    } catch (Exception  e) {
        LOG.error("get local ip error!", e);
    }
    return null;
}
 
Example 6
Source Project: brave   File: Platform.java    License: Apache License 2.0 6 votes vote down vote up
String produceLinkLocalIp() {
  try {
    Enumeration<NetworkInterface> nics = NetworkInterface.getNetworkInterfaces();
    while (nics.hasMoreElements()) {
      NetworkInterface nic = nics.nextElement();
      Enumeration<InetAddress> addresses = nic.getInetAddresses();
      while (addresses.hasMoreElements()) {
        InetAddress address = addresses.nextElement();
        if (address.isSiteLocalAddress()) return address.getHostAddress();
      }
    }
  } catch (Exception e) {
    // don't crash the caller if there was a problem reading nics.
    log("error reading nics", e);
  }
  return null;
}
 
Example 7
/**
 * Gets the current machine endpoint.
 *
 * @return the current machine endpoint
 * @throws SocketException the socket exception
 */
protected String getCurrentMachineEndpoint() throws SocketException {
	Enumeration<NetworkInterface> ifaces = NetworkInterface
			.getNetworkInterfaces();
	String ipAddress = null;
	for (NetworkInterface iface : Collections.list(ifaces)) {
		Enumeration<InetAddress> raddrs = iface.getInetAddresses();
		for (InetAddress raddr : Collections.list(raddrs)) {
			if (!raddr.isLoopbackAddress() && raddr.isSiteLocalAddress()) {
				if (raddr.toString().startsWith("/")) {
					ipAddress = raddr.toString().split("/")[1];
				}
			}
		}
	}
	return ipAddress;
}
 
Example 8
/**
 * Returns the IP address of the first configured interface of the device
 * @param removeIPv6 If true, IPv6 addresses are ignored
 * @return the IP address of the first configured interface or null
 */
public static String getLocalIpAddress(boolean removeIPv6) {
	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.isSiteLocalAddress() &&
						!inetAddress.isAnyLocalAddress() &&
						(!removeIPv6 || isIpv4Address(inetAddress.getHostAddress().toString())) ) {
					return inetAddress.getHostAddress().toString();
				}
			}
		}
	} catch (SocketException ignore) {}
	return null;
}
 
Example 9
private static boolean isLocal(final InetAddress a) {
    final boolean
        localp = noLocalCheck || // DO NOT REMOVE THIS! it is correct to return true if the check is off
        a == null ||
        a.isAnyLocalAddress() ||
        a.isLinkLocalAddress() ||
        a.isLoopbackAddress() ||
        a.isSiteLocalAddress();
    return localp;
}
 
Example 10
Source Project: flow   File: AbstractTestBenchTest.java    License: Apache License 2.0 5 votes vote down vote up
private static Optional<String> getHostAddress(
        NetworkInterface nwInterface) {
    Enumeration<InetAddress> addresses = nwInterface.getInetAddresses();
    while (addresses.hasMoreElements()) {
        InetAddress address = addresses.nextElement();
        if (address.isLoopbackAddress()) {
            continue;
        }
        if (address.isSiteLocalAddress()) {
            return Optional.of(address.getHostAddress());
        }
    }
    return Optional.empty();
}
 
Example 11
Source Project: BACnet4J   File: IpNetwork.java    License: GNU General Public License v3.0 5 votes vote down vote up
public static InetAddress getDefaultLocalInetAddress() throws UnknownHostException, SocketException {
    for (NetworkInterface iface : Collections.list(NetworkInterface.getNetworkInterfaces())) {
        for (InetAddress addr : Collections.list(iface.getInetAddresses())) {
            if (!addr.isLoopbackAddress() && addr.isSiteLocalAddress())
                return addr;
        }
    }
    return InetAddress.getLocalHost();
}
 
Example 12
Source Project: wt1   File: Utils.java    License: Apache License 2.0 5 votes vote down vote up
/**
 * Checks whether a String is a valid public IP address.
 */
public static boolean isPublicAddress(String a) {
	if (! InetAddresses.isInetAddress(a)) {
		return false;
	}
	InetAddress addr = InetAddresses.forString(a);
	return ! addr.isSiteLocalAddress()
			&& ! addr.isLinkLocalAddress()
			&& ! addr.isLoopbackAddress()
			&& ! addr.isAnyLocalAddress()
			&& ! addr.isMulticastAddress();
}
 
Example 13
Source Project: keycloak   File: WelcomePageTest.java    License: Apache License 2.0 5 votes vote down vote up
/**
 * Attempt to resolve the floating IP address. This is where EAP/WildFly
 * will be accessible. See "-Djboss.bind.address=0.0.0.0".
 * 
 * @return
 * @throws Exception 
 */
private String getFloatingIpAddress() throws Exception {
    Enumeration<NetworkInterface> netInterfaces = NetworkInterface.getNetworkInterfaces();
    for (NetworkInterface ni : Collections.list(netInterfaces)) {
        Enumeration<InetAddress> inetAddresses = ni.getInetAddresses();
        for (InetAddress a : Collections.list(inetAddresses)) {
            if (!a.isLoopbackAddress() && a.isSiteLocalAddress()) {
                return a.getHostAddress();
            }
        }
    }
    return null;
}
 
Example 14
Source Project: leaf-snowflake   File: Utils.java    License: Apache License 2.0 5 votes vote down vote up
/**
 * 获得外网IP
 * @return 外网IP
 */
public static String getInternetIp(){
	if( true )
		return getIntranetIp();
	try{
		Enumeration<NetworkInterface> networks = NetworkInterface.getNetworkInterfaces();
		InetAddress ip = null;
		Enumeration<InetAddress> addrs;
		while (networks.hasMoreElements())
		{
			addrs = networks.nextElement().getInetAddresses();
			while (addrs.hasMoreElements())
			{
				ip = addrs.nextElement();
				if (ip != null
						&& ip instanceof Inet4Address
						&& ip.isSiteLocalAddress()
						&& !ip.getHostAddress().equals(getIntranetIp()))
				{
					return ip.getHostAddress();
				}
			}
		}

		// 如果没有外网IP,就返回内网IP
		return getIntranetIp();
	} catch(Exception e){
		throw new RuntimeException(e);
	}
}
 
Example 15
Source Project: crate   File: IfConfig.java    License: Apache License 2.0 5 votes vote down vote up
/** format internet address: java's default doesn't include everything useful */
private static String formatAddress(InterfaceAddress interfaceAddress) throws IOException {
    StringBuilder sb = new StringBuilder();

    InetAddress address = interfaceAddress.getAddress();
    if (address instanceof Inet6Address) {
        sb.append("inet6 ");
        sb.append(NetworkAddress.format(address));
        sb.append(" prefixlen:");
        sb.append(interfaceAddress.getNetworkPrefixLength());
    } else {
        sb.append("inet ");
        sb.append(NetworkAddress.format(address));
        int netmask = 0xFFFFFFFF << (32 - interfaceAddress.getNetworkPrefixLength());
        sb.append(" netmask:").append(NetworkAddress.format(InetAddress.getByAddress(new byte[]{
            (byte) (netmask >>> 24),
            (byte) (netmask >>> 16 & 0xFF),
            (byte) (netmask >>> 8 & 0xFF),
            (byte) (netmask & 0xFF)
        })));
        InetAddress broadcast = interfaceAddress.getBroadcast();
        if (broadcast != null) {
            sb.append(" broadcast:").append(NetworkAddress.format(broadcast));
        }
    }
    if (address.isLoopbackAddress()) {
        sb.append(" scope:host");
    } else if (address.isLinkLocalAddress()) {
        sb.append(" scope:link");
    } else if (address.isSiteLocalAddress()) {
        sb.append(" scope:site");
    }
    return sb.toString();
}
 
Example 16
Source Project: open-rmbt   File: Helperfunctions.java    License: Apache License 2.0 5 votes vote down vote up
public static String filterIP(final InetAddress inetAddress)
{
    try
    {
        final String ipVersion;
        if (inetAddress instanceof Inet4Address)
            ipVersion = "ipv4";
        else if (inetAddress instanceof Inet6Address)
            ipVersion = "ipv6";
        else
            ipVersion = "ipv?";
        
        if (inetAddress.isAnyLocalAddress())
            return "wildcard";
        if (inetAddress.isSiteLocalAddress())
            return "site_local_" + ipVersion;
        if (inetAddress.isLinkLocalAddress())
            return "link_local_" + ipVersion;
        if (inetAddress.isLoopbackAddress())
            return "loopback_" + ipVersion;
        return inetAddress.getHostAddress();
    }
    catch (final IllegalArgumentException e)
    {
        return "illegal_ip";
    }
}
 
Example 17
Source Project: pampas   File: AbstractServer.java    License: Apache License 2.0 5 votes vote down vote up
public InetAddress getLocalHostLANAddress() {
    try {
        InetAddress candidateAddress = null;
        // 遍历所有的网络接口
        for (Enumeration ifaces = NetworkInterface.getNetworkInterfaces(); ifaces.hasMoreElements(); ) {
            NetworkInterface iface = (NetworkInterface) ifaces.nextElement();
            // 在所有的接口下再遍历IP
            for (Enumeration inetAddrs = iface.getInetAddresses(); inetAddrs.hasMoreElements(); ) {
                InetAddress inetAddr = (InetAddress) inetAddrs.nextElement();
                if (!inetAddr.isLoopbackAddress()) {// 排除loopback类型地址
                    if (inetAddr.isSiteLocalAddress()) {
                        // 如果是site-local地址,就是它了
                        return inetAddr;
                    } else if (candidateAddress == null) {
                        // site-local类型的地址未被发现,先记录候选地址
                        candidateAddress = inetAddr;
                    }
                }
            }
        }
        if (candidateAddress != null) {
            return candidateAddress;
        }
        // 如果没有发现 non-loopback地址.只能用最次选的方案
        InetAddress jdkSuppliedAddress = InetAddress.getLocalHost();
        return jdkSuppliedAddress;
    } catch (Exception e) {
        e.printStackTrace();
    }
    return null;
}
 
Example 18
Source Project: linden   File: CommonUtils.java    License: Apache License 2.0 5 votes vote down vote up
public static String getLocalHostIp() {
  // for container env
  if (System.getenv(CONTAINER_ENV_KEY) != null && System.getenv(CONTAINER_ENV_KEY).equals("true")
      && System.getenv(HOST_IP_KEY) != null) {
    LOGGER.debug("Using the IP address {} from container env", System.getenv(HOST_IP_KEY));
    return System.getenv(HOST_IP_KEY);
  }

  try {
    for (NetworkInterface iface : Collections.list(NetworkInterface.getNetworkInterfaces())) {
      for (InetAddress addr : Collections.list(iface.getInetAddresses())) {
        LOGGER.debug("Checking ip address {}", addr);
        String hostAddress = addr.getHostAddress();
        // The docker virtual environment uses a virtual ip which should be skipped.
        if (addr.isSiteLocalAddress()
            && !addr.isLoopbackAddress()
            && !(addr instanceof Inet6Address)
            && !hostAddress.equals(DockerIP)) {
          LOGGER.debug("Ok, the ip {} will be used.", addr);
          return hostAddress;
        }
      }
    }
  } catch (SocketException e) {
    LOGGER.error("Couldn't find the local machine ip.", e);
  }
  throw new IllegalStateException("Couldn't find the local machine ip.");
}
 
Example 19
/**
 * https://stackoverflow.com/questions/9481865/getting-the-ip-address-of-the-current-machine-using-java
 *
 * <p>
 * Returns an <code>InetAddress</code> object encapsulating what is most likely the machine's LAN IP address.
 * <p/>
 * This method is intended for use as a replacement of JDK method <code>InetAddress.getLocalHost</code>, because
 * that method is ambiguous on Linux systems. Linux systems enumerate the loopback network interface the same
 * way as regular LAN network interfaces, but the JDK <code>InetAddress.getLocalHost</code> method does not
 * specify the algorithm used to select the address returned under such circumstances, and will often return the
 * loopback address, which is not valid for network communication. Details
 * <a href="http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4665037">here</a>.
 * <p/>
 * This method will scan all IP addresses on all network interfaces on the host machine to determine the IP address
 * most likely to be the machine's LAN address. If the machine has multiple IP addresses, this method will prefer
 * a site-local IP address (e.g. 192.168.x.x or 10.10.x.x, usually IPv4) if the machine has one (and will return the
 * first site-local address if the machine has more than one), but if the machine does not hold a site-local
 * address, this method will return simply the first non-loopback address found (IPv4 or IPv6).
 * <p/>
 * If this method cannot find a non-loopback address using this selection algorithm, it will fall back to
 * calling and returning the result of JDK method <code>InetAddress.getLocalHost</code>.
 * <p/>
 *
 * @throws UnknownHostException If the LAN address of the machine cannot be found.
 */
private static InetAddress getLocalHostLANAddress() throws UnknownHostException {
	try {
		InetAddress candidateAddress = null;
		// Iterate all NICs (network interface cards)...
		for (Enumeration ifaces = NetworkInterface.getNetworkInterfaces(); ifaces.hasMoreElements(); ) {
			NetworkInterface iface = (NetworkInterface) ifaces.nextElement();
			// Iterate all IP addresses assigned to each card...
			for (Enumeration inetAddrs = iface.getInetAddresses(); inetAddrs.hasMoreElements(); ) {
				InetAddress inetAddr = (InetAddress) inetAddrs.nextElement();
				if (!inetAddr.isLoopbackAddress()) {

					if (inetAddr.isSiteLocalAddress()) {
						// Found non-loopback site-local address. Return it immediately...
						return inetAddr;
					} else if (candidateAddress == null) {
						// Found non-loopback address, but not necessarily site-local.
						// Store it as a candidate to be returned if site-local address is not subsequently found...
						candidateAddress = inetAddr;
						// Note that we don't repeatedly assign non-loopback non-site-local addresses as candidates,
						// only the first. For subsequent iterations, candidate will be non-null.
					}
				}
			}
		}
		if (candidateAddress != null) {
			// We did not find a site-local address, but we found some other non-loopback address.
			// Server might have a non-site-local address assigned to its NIC (or it might be running
			// IPv6 which deprecates the "site-local" concept).
			// Return this non-loopback candidate address...
			return candidateAddress;
		}
		// At this point, we did not find a non-loopback address.
		// Fall back to returning whatever InetAddress.getLocalHost() returns...
		InetAddress jdkSuppliedAddress = InetAddress.getLocalHost();
		if (jdkSuppliedAddress == null) {
			throw new UnknownHostException("The JDK InetAddress.getLocalHost() method unexpectedly returned null.");
		}
		return jdkSuppliedAddress;
	} catch (Exception e) {
		UnknownHostException unknownHostException = new UnknownHostException("Failed to determine LAN address: " + e);
		unknownHostException.initCause(e);
		throw unknownHostException;
	}
}
 
Example 20
Source Project: brooklyn-server   File: Networking.java    License: Apache License 2.0 2 votes vote down vote up
/**
 * Check if this is a private address, not exposed on the public Internet.
 *
 * For IPV4 addresses this is an RFC1918 subnet (site local) address ({@code 10.0.0.0/8},
 * {@code 172.16.0.0/12} and {@code 192.168.0.0/16}), a link-local address
 * ({@code 169.254.0.0/16}) or a loopback address ({@code 127.0.0.1/0}).
 * <p>
 * For IPV6 addresses this is the RFC3514 link local block ({@code fe80::/10})
 * and site local block ({@code feco::/10}) or the loopback block
 * ({@code ::1/128}).
 *
 * @return true if the address is private
 */
public static boolean isPrivateSubnet(InetAddress address) {
    return address.isSiteLocalAddress() || address.isLoopbackAddress() || address.isLinkLocalAddress();
}