| /* |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| */ |
| package org.apache.qpid.server.virtualhostalias; |
| |
| import java.net.InetAddress; |
| import java.net.InterfaceAddress; |
| import java.net.NetworkInterface; |
| import java.net.SocketException; |
| import java.net.UnknownHostException; |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.HashSet; |
| import java.util.Map; |
| import java.util.Set; |
| import java.util.concurrent.CopyOnWriteArraySet; |
| import java.util.concurrent.atomic.AtomicBoolean; |
| import java.util.concurrent.locks.Lock; |
| import java.util.concurrent.locks.ReentrantLock; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import org.apache.qpid.server.model.Broker; |
| import org.apache.qpid.server.model.HostNameAlias; |
| import org.apache.qpid.server.model.ManagedObjectFactoryConstructor; |
| import org.apache.qpid.server.model.NamedAddressSpace; |
| import org.apache.qpid.server.model.Port; |
| import org.apache.qpid.server.model.VirtualHostNode; |
| import org.apache.qpid.server.model.port.AmqpPort; |
| |
| public class HostNameAliasImpl |
| extends AbstractFixedVirtualHostNodeAlias<HostNameAliasImpl> |
| implements HostNameAlias<HostNameAliasImpl> |
| { |
| |
| private static final Logger LOG = LoggerFactory.getLogger(HostNameAliasImpl.class); |
| |
| private final Set<InetAddress> _localAddresses = new CopyOnWriteArraySet<>(); |
| private final Set<String> _localAddressNames = new CopyOnWriteArraySet<>(); |
| private final Lock _addressLock = new ReentrantLock(); |
| private final AtomicBoolean _addressesComputed = new AtomicBoolean(); |
| |
| |
| @ManagedObjectFactoryConstructor |
| protected HostNameAliasImpl(final Map<String, Object> attributes, final Port port) |
| { |
| super(attributes, port); |
| } |
| |
| protected void onOpen() |
| { |
| super.onOpen(); |
| String bindingAddress = ((AmqpPort) getPort()).getBindingAddress(); |
| Thread thread = new Thread(new NetworkAddressResolver(), |
| "Network Address Resolver (Port: " |
| + (useAllAddresses(bindingAddress) ? "" : bindingAddress) |
| + ":" + getPort().getPort() +")"); |
| thread.setDaemon(true); |
| thread.start(); |
| } |
| |
| |
| @Override |
| public NamedAddressSpace getAddressSpace(final String name) |
| { |
| VirtualHostNode<?> node = null; |
| if (matches(name)) |
| { |
| node = getVirtualHostNode(); |
| if (node == null) |
| { |
| Broker<?> broker = getPort().getParent(Broker.class); |
| node = broker.findDefautVirtualHostNode(); |
| } |
| |
| } |
| return node == null ? null : node.getVirtualHost(); |
| |
| } |
| |
| @Override |
| protected boolean matches(final String host) |
| { |
| while(!_addressesComputed.get()) |
| { |
| Lock lock = _addressLock; |
| lock.lock(); |
| lock.unlock(); |
| } |
| |
| boolean isNetworkAddress = true; |
| if (!_localAddressNames.contains(host)) |
| { |
| try |
| { |
| InetAddress inetAddress = InetAddress.getByName(host); |
| if (!_localAddresses.contains(inetAddress)) |
| { |
| isNetworkAddress = false; |
| } |
| else |
| { |
| _localAddressNames.add(host); |
| } |
| } |
| catch (UnknownHostException e) |
| { |
| // ignore |
| isNetworkAddress = false; |
| } |
| } |
| return isNetworkAddress; |
| |
| } |
| |
| private class NetworkAddressResolver implements Runnable |
| { |
| public void run() |
| { |
| _addressesComputed.set(false); |
| Lock lock = _addressLock; |
| |
| lock.lock(); |
| String bindingAddress = ((AmqpPort<?>)getPort()).getBindingAddress(); |
| try |
| { |
| Collection<InetAddress> inetAddresses; |
| if(useAllAddresses(bindingAddress)) |
| { |
| inetAddresses = getAllInetAddresses(); |
| } |
| else |
| { |
| inetAddresses = Collections.singleton(InetAddress.getByName(bindingAddress)); |
| } |
| for (InetAddress address : inetAddresses) |
| { |
| _localAddresses.add(address); |
| String hostAddress = address.getHostAddress(); |
| if (hostAddress != null) |
| { |
| _localAddressNames.add(hostAddress); |
| } |
| String hostName = address.getHostName(); |
| if (hostName != null) |
| { |
| _localAddressNames.add(hostName); |
| } |
| String canonicalHostName = address.getCanonicalHostName(); |
| if (canonicalHostName != null) |
| { |
| _localAddressNames.add(canonicalHostName); |
| } |
| } |
| } |
| catch (SocketException | UnknownHostException e) |
| { |
| LOG.error("Unable to correctly calculate host name aliases for port " + getPort().getName() |
| + ". This may lead to connection failures.", e); |
| } |
| finally |
| { |
| _addressesComputed.set(true); |
| lock.unlock(); |
| } |
| } |
| |
| private Collection<InetAddress> getAllInetAddresses() throws SocketException |
| { |
| Set<InetAddress> addresses = new HashSet<>(); |
| for (NetworkInterface networkInterface : Collections.list(NetworkInterface.getNetworkInterfaces())) |
| { |
| for (InterfaceAddress inetAddress : networkInterface.getInterfaceAddresses()) |
| { |
| addresses.add(inetAddress.getAddress()); |
| } |
| } |
| return addresses; |
| } |
| } |
| |
| private boolean useAllAddresses(final String bindingAddress) |
| { |
| return bindingAddress == null || bindingAddress.trim().equals("") || bindingAddress.trim().equals("*"); |
| } |
| } |