| /** |
| * 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.kerby.kerberos.kerb.client.impl.event; |
| |
| import org.apache.kerby.KOptions; |
| import org.apache.kerby.event.Event; |
| import org.apache.kerby.event.EventHub; |
| import org.apache.kerby.event.EventWaiter; |
| import org.apache.kerby.kerberos.kerb.KrbException; |
| import org.apache.kerby.kerberos.kerb.client.impl.AbstractInternalKrbClient; |
| import org.apache.kerby.kerberos.kerb.client.request.AsRequest; |
| import org.apache.kerby.kerberos.kerb.client.request.TgsRequest; |
| import org.apache.kerby.kerberos.kerb.common.KrbStreamingDecoder; |
| import org.apache.kerby.kerberos.kerb.spec.ticket.ServiceTicket; |
| import org.apache.kerby.kerberos.kerb.spec.ticket.TgtTicket; |
| import org.apache.kerby.transport.Network; |
| import org.apache.kerby.transport.Transport; |
| import org.apache.kerby.transport.event.TransportEvent; |
| import org.apache.kerby.transport.event.TransportEventType; |
| |
| import java.util.concurrent.TimeUnit; |
| import java.util.concurrent.TimeoutException; |
| |
| /** |
| * An event based krb client implementation. |
| */ |
| public class EventBasedKrbClient extends AbstractInternalKrbClient { |
| |
| private EventKrbHandler krbHandler; |
| private EventHub eventHub; |
| private EventWaiter eventWaiter; |
| private Transport transport; |
| |
| @Override |
| public void init(KOptions commonOptions) throws KrbException { |
| super.init(commonOptions); |
| |
| this.krbHandler = new EventKrbHandler(); |
| krbHandler.init(getContext()); |
| |
| this.eventHub = new EventHub(); |
| eventHub.register(krbHandler); |
| |
| Network network = new Network(); |
| network.setStreamingDecoder(new KrbStreamingDecoder()); |
| eventHub.register(network); |
| |
| eventWaiter = eventHub.waitEvent( |
| TransportEventType.NEW_TRANSPORT, |
| KrbClientEventType.TGT_RESULT, |
| KrbClientEventType.TKT_RESULT |
| ); |
| |
| eventHub.start(); |
| |
| network.tcpConnect(getSetting().getKdcHost(), |
| getSetting().getKdcTcpPort()); |
| if (getSetting().allowUdp()) { |
| network.udpConnect(getSetting().getKdcHost(), |
| getSetting().getKdcUdpPort()); |
| } |
| final Event event = eventWaiter.waitEvent(TransportEventType.NEW_TRANSPORT); |
| transport = ((TransportEvent) event).getTransport(); |
| } |
| |
| @Override |
| protected TgtTicket doRequestTgtTicket(AsRequest tgtTktReq) throws KrbException { |
| tgtTktReq.setSessionData(transport); |
| transport.setAttachment(tgtTktReq); |
| |
| eventHub.dispatch(KrbClientEvent.createTgtIntentEvent(tgtTktReq)); |
| Event resultEvent; |
| try { |
| resultEvent = eventWaiter.waitEvent(KrbClientEventType.TGT_RESULT, |
| getSetting().getTimeout(), TimeUnit.SECONDS); |
| } catch (TimeoutException e) { |
| throw new KrbException("Network timeout", e); |
| } |
| AsRequest asResponse = (AsRequest) resultEvent.getEventData(); |
| |
| return asResponse.getTicket(); |
| } |
| |
| @Override |
| protected ServiceTicket doRequestServiceTicket(TgsRequest ticketReq) throws KrbException { |
| ticketReq.setSessionData(transport); |
| transport.setAttachment(ticketReq); |
| |
| eventHub.dispatch(KrbClientEvent.createTktIntentEvent(ticketReq)); |
| Event resultEvent; |
| try { |
| resultEvent = eventWaiter.waitEvent(KrbClientEventType.TKT_RESULT, |
| getSetting().getTimeout(), TimeUnit.SECONDS); |
| } catch (TimeoutException e) { |
| throw new KrbException("Network timeout", e); |
| } |
| TgsRequest tgsResponse = (TgsRequest) resultEvent.getEventData(); |
| |
| return tgsResponse.getServiceTicket(); |
| } |
| } |