| /* |
| * |
| * 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.transport; |
| |
| import static org.apache.qpid.transport.Connection.State.OPEN; |
| import static org.apache.qpid.transport.Connection.State.RESUMING; |
| |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| |
| import javax.security.sasl.SaslClient; |
| import javax.security.sasl.SaslException; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import org.apache.qpid.configuration.ClientProperties; |
| import org.apache.qpid.configuration.CommonProperties; |
| import org.apache.qpid.properties.ConnectionStartProperties; |
| |
| |
| /** |
| * ClientDelegate |
| * |
| */ |
| |
| public class ClientDelegate extends ConnectionDelegate |
| { |
| private static final Logger LOGGER = LoggerFactory.getLogger(ClientDelegate.class); |
| |
| private final ConnectionSettings _connectionSettings; |
| |
| public ClientDelegate(ConnectionSettings settings) |
| { |
| _connectionSettings = settings; |
| } |
| |
| public void init(Connection conn, ProtocolHeader hdr) |
| { |
| if (!(hdr.getMajor() == 0 && hdr.getMinor() == 10)) |
| { |
| conn.exception(new ProtocolVersionException(hdr.getMajor(), hdr.getMinor())); |
| } |
| } |
| |
| @Override |
| public void connectionStart(Connection conn, ConnectionStart start) |
| { |
| Map<String,Object> clientProperties = new HashMap<String,Object>(); |
| |
| if(_connectionSettings.getClientProperties() != null) |
| { |
| clientProperties.putAll(_connectionSettings.getClientProperties()); |
| } |
| |
| clientProperties.put(ConnectionStartProperties.SESSION_FLOW, 1); |
| clientProperties.put(ConnectionStartProperties.PID, ConnectionStartProperties.getPID()); |
| clientProperties.put(ConnectionStartProperties.PROCESS, System.getProperty(ClientProperties.PROCESS_NAME, "Apache Qpid JMS Client for AMQP 0-9-1/0-10")); |
| clientProperties.put(ConnectionStartProperties.VERSION_0_10, CommonProperties.getReleaseVersion()); |
| clientProperties.put(ConnectionStartProperties.PRODUCT, CommonProperties.getProductName()); |
| clientProperties.put(ConnectionStartProperties.PLATFORM, ConnectionStartProperties.getPlatformInfo()); |
| |
| List<Object> brokerMechs = start.getMechanisms(); |
| if (brokerMechs == null || brokerMechs.isEmpty()) |
| { |
| conn.connectionStartOk |
| (clientProperties, null, null, conn.getLocale()); |
| return; |
| } |
| conn.setServerProperties(start.getServerProperties()); |
| |
| try |
| { |
| final SaslClient sc = createSaslClient(brokerMechs); |
| |
| conn.setSaslClient(sc); |
| |
| byte[] response = sc.hasInitialResponse() ? |
| sc.evaluateChallenge(new byte[0]) : null; |
| conn.connectionStartOk |
| (clientProperties, sc.getMechanismName(), response, |
| conn.getLocale()); |
| } |
| catch (ConnectionException ce) |
| { |
| conn.exception(ce); |
| } |
| catch (SaslException e) |
| { |
| conn.exception(e); |
| } |
| } |
| |
| |
| protected SaslClient createSaslClient(List<Object> brokerMechs) throws ConnectionException, SaslException |
| { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public void connectionSecure(Connection conn, ConnectionSecure secure) |
| { |
| SaslClient sc = conn.getSaslClient(); |
| try |
| { |
| byte[] response = sc.evaluateChallenge(secure.getChallenge()); |
| conn.connectionSecureOk(response); |
| } |
| catch (SaslException e) |
| { |
| conn.exception(e); |
| } |
| } |
| |
| @Override |
| public void connectionTune(Connection conn, ConnectionTune tune) |
| { |
| try |
| { |
| verifySaslNegotiationComplete(conn); |
| } |
| catch (SaslException e) |
| { |
| conn.exception(e); |
| return; |
| } |
| |
| int heartbeatInterval = _connectionSettings.getHeartbeatInterval010(); |
| float heartbeatTimeoutFactor = _connectionSettings.getHeartbeatTimeoutFactor(); |
| int actualHeartbeatInterval = calculateHeartbeatInterval(heartbeatInterval, |
| tune.getHeartbeatMin(), |
| tune.getHeartbeatMax()); |
| int maxFrameSize = tune.getMaxFrameSize(); |
| int settingsMaxFrameSize = conn.getConnectionSettings().getMaxFrameSize(); |
| if(maxFrameSize == 0 && settingsMaxFrameSize != 0 && settingsMaxFrameSize < 0xffff) |
| { |
| maxFrameSize = Math.max(Constant.MIN_MAX_FRAME_SIZE, settingsMaxFrameSize); |
| } |
| else if(maxFrameSize != 0 && settingsMaxFrameSize != 0) |
| { |
| maxFrameSize = Math.max(Constant.MIN_MAX_FRAME_SIZE, Math.min(maxFrameSize, settingsMaxFrameSize)); |
| } |
| conn.connectionTuneOk(tune.getChannelMax(), |
| maxFrameSize, |
| actualHeartbeatInterval); |
| |
| conn.getNetworkConnection().setMaxReadIdleMillis((long) (1000L * (actualHeartbeatInterval * heartbeatTimeoutFactor))); |
| conn.getNetworkConnection().setMaxWriteIdleMillis(1000L *actualHeartbeatInterval); |
| conn.setMaxFrameSize(maxFrameSize == 0 ? 0xffff : maxFrameSize); |
| |
| int channelMax = tune.getChannelMax(); |
| //0 means no implied limit, except available server resources |
| //(or that forced by protocol limitations [0xFFFF]) |
| conn.setChannelMax(channelMax == 0 ? Connection.MAX_CHANNEL_MAX : channelMax); |
| |
| conn.connectionOpen(_connectionSettings.getVhost(), null, Option.INSIST); |
| } |
| |
| @Override |
| public void connectionOpenOk(Connection conn, ConnectionOpenOk ok) |
| { |
| if (conn.isConnectionResuming()) |
| { |
| conn.setState(RESUMING); |
| } |
| else |
| { |
| conn.setState(OPEN); |
| } |
| } |
| |
| @Override |
| public void connectionRedirect(Connection conn, ConnectionRedirect redir) |
| { |
| conn.setRedirecting(true); |
| conn.getSender().close(); |
| for(ConnectionListener listener : conn.getListeners()) |
| { |
| if(listener.redirect(redir.getHost(), redir.getKnownHosts())) |
| { |
| break; |
| } |
| } |
| } |
| |
| @Override |
| public void connectionHeartbeat(Connection conn, ConnectionHeartbeat hearbeat) |
| { |
| conn.connectionHeartbeat(); |
| } |
| |
| /** |
| * Currently the spec specified the min and max for heartbeat using secs |
| */ |
| int calculateHeartbeatInterval(int heartbeat,int min, int max) |
| { |
| int i = heartbeat; |
| if (i == 0) |
| { |
| LOGGER.info("Heartbeat interval is 0 sec. Heartbeats are disabled."); |
| return 0; // heartbeats are disabled. |
| } |
| else if (i >= min && i <= max) |
| { |
| return i; |
| } |
| else |
| { |
| LOGGER.info("The broker does not support the configured connection heartbeat interval of {} sec," + |
| " using the brokers max supported value of {} sec instead.", i, max); |
| return max; |
| } |
| } |
| |
| public ConnectionSettings getConnectionSettings() |
| { |
| return _connectionSettings; |
| } |
| |
| private void verifySaslNegotiationComplete(Connection connection) throws SaslException |
| { |
| SaslClient client = connection.getSaslClient(); |
| if (client != null) |
| { |
| if (!client.isComplete()) |
| { |
| throw new SaslException("SASL negotiation has not been completed - cannot proceed with connection open"); |
| } |
| |
| String mechanismName = client.getMechanismName(); |
| try |
| { |
| client.dispose(); |
| } |
| catch (SaslException e) |
| { |
| LOGGER.warn("Disposal of client sasl for mechanism '{}' has failed", mechanismName, e); |
| } |
| finally |
| { |
| connection.setSaslClient(null); |
| } |
| } |
| } |
| } |