forked from apache/pulsar
/
ServerCnx.java
2662 lines (2395 loc) · 132 KB
/
ServerCnx.java
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/**
* 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.pulsar.broker.service;
import static com.google.common.base.Preconditions.checkArgument;
import static org.apache.commons.lang3.StringUtils.isNotBlank;
import static org.apache.pulsar.broker.admin.impl.PersistentTopicsBase.unsafeGetPartitionedTopicMetadataAsync;
import static org.apache.pulsar.broker.lookup.TopicLookupBase.lookupTopicAsync;
import static org.apache.pulsar.common.api.proto.ProtocolVersion.v5;
import static org.apache.pulsar.common.protocol.Commands.newLookupErrorResponse;
import com.google.common.annotations.VisibleForTesting;
import com.google.common.base.Strings;
import io.netty.buffer.ByteBuf;
import io.netty.channel.ChannelHandler;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelOption;
import io.netty.handler.codec.haproxy.HAProxyMessage;
import io.netty.handler.ssl.SslHandler;
import io.netty.util.concurrent.FastThreadLocal;
import io.netty.util.concurrent.Promise;
import io.prometheus.client.Gauge;
import java.net.InetSocketAddress;
import java.net.SocketAddress;
import java.util.Collections;
import java.util.IdentityHashMap;
import java.util.Map;
import java.util.NoSuchElementException;
import java.util.Objects;
import java.util.Optional;
import java.util.Set;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.Semaphore;
import java.util.concurrent.TimeUnit;
import java.util.stream.Collectors;
import javax.naming.AuthenticationException;
import javax.net.ssl.SSLSession;
import lombok.val;
import org.apache.bookkeeper.mledger.AsyncCallbacks;
import org.apache.bookkeeper.mledger.Entry;
import org.apache.bookkeeper.mledger.ManagedLedgerException;
import org.apache.bookkeeper.mledger.Position;
import org.apache.bookkeeper.mledger.impl.ManagedLedgerImpl;
import org.apache.bookkeeper.mledger.impl.PositionImpl;
import org.apache.bookkeeper.mledger.util.SafeRun;
import org.apache.commons.lang3.StringUtils;
import org.apache.commons.lang3.exception.ExceptionUtils;
import org.apache.commons.lang3.mutable.MutableInt;
import org.apache.commons.lang3.mutable.MutableLong;
import org.apache.pulsar.broker.PulsarService;
import org.apache.pulsar.broker.ServiceConfiguration;
import org.apache.pulsar.broker.TransactionMetadataStoreService;
import org.apache.pulsar.broker.authentication.AuthenticationDataCommand;
import org.apache.pulsar.broker.authentication.AuthenticationDataSource;
import org.apache.pulsar.broker.authentication.AuthenticationProvider;
import org.apache.pulsar.broker.authentication.AuthenticationState;
import org.apache.pulsar.broker.intercept.BrokerInterceptor;
import org.apache.pulsar.broker.service.BrokerServiceException.ConsumerBusyException;
import org.apache.pulsar.broker.service.BrokerServiceException.ServerMetadataException;
import org.apache.pulsar.broker.service.BrokerServiceException.ServiceUnitNotReadyException;
import org.apache.pulsar.broker.service.BrokerServiceException.SubscriptionNotFoundException;
import org.apache.pulsar.broker.service.BrokerServiceException.TopicNotFoundException;
import org.apache.pulsar.broker.service.persistent.PersistentSubscription;
import org.apache.pulsar.broker.service.persistent.PersistentTopic;
import org.apache.pulsar.broker.service.schema.SchemaRegistryService;
import org.apache.pulsar.broker.service.schema.exceptions.IncompatibleSchemaException;
import org.apache.pulsar.broker.web.RestException;
import org.apache.pulsar.client.api.PulsarClientException;
import org.apache.pulsar.client.api.transaction.TxnID;
import org.apache.pulsar.client.impl.BatchMessageIdImpl;
import org.apache.pulsar.client.impl.ClientCnx;
import org.apache.pulsar.client.impl.MessageIdImpl;
import org.apache.pulsar.client.impl.schema.SchemaInfoUtil;
import org.apache.pulsar.common.api.AuthData;
import org.apache.pulsar.common.api.proto.BaseCommand;
import org.apache.pulsar.common.api.proto.CommandAck;
import org.apache.pulsar.common.api.proto.CommandAddPartitionToTxn;
import org.apache.pulsar.common.api.proto.CommandAddSubscriptionToTxn;
import org.apache.pulsar.common.api.proto.CommandAuthResponse;
import org.apache.pulsar.common.api.proto.CommandCloseConsumer;
import org.apache.pulsar.common.api.proto.CommandCloseProducer;
import org.apache.pulsar.common.api.proto.CommandConnect;
import org.apache.pulsar.common.api.proto.CommandConsumerStats;
import org.apache.pulsar.common.api.proto.CommandEndTxn;
import org.apache.pulsar.common.api.proto.CommandEndTxnOnPartition;
import org.apache.pulsar.common.api.proto.CommandEndTxnOnSubscription;
import org.apache.pulsar.common.api.proto.CommandFlow;
import org.apache.pulsar.common.api.proto.CommandGetLastMessageId;
import org.apache.pulsar.common.api.proto.CommandGetOrCreateSchema;
import org.apache.pulsar.common.api.proto.CommandGetSchema;
import org.apache.pulsar.common.api.proto.CommandGetTopicsOfNamespace;
import org.apache.pulsar.common.api.proto.CommandLookupTopic;
import org.apache.pulsar.common.api.proto.CommandNewTxn;
import org.apache.pulsar.common.api.proto.CommandPartitionedTopicMetadata;
import org.apache.pulsar.common.api.proto.CommandProducer;
import org.apache.pulsar.common.api.proto.CommandRedeliverUnacknowledgedMessages;
import org.apache.pulsar.common.api.proto.CommandSeek;
import org.apache.pulsar.common.api.proto.CommandSend;
import org.apache.pulsar.common.api.proto.CommandSubscribe;
import org.apache.pulsar.common.api.proto.CommandSubscribe.InitialPosition;
import org.apache.pulsar.common.api.proto.CommandSubscribe.SubType;
import org.apache.pulsar.common.api.proto.CommandUnsubscribe;
import org.apache.pulsar.common.api.proto.FeatureFlags;
import org.apache.pulsar.common.api.proto.KeySharedMeta;
import org.apache.pulsar.common.api.proto.KeySharedMode;
import org.apache.pulsar.common.api.proto.KeyValue;
import org.apache.pulsar.common.api.proto.MessageIdData;
import org.apache.pulsar.common.api.proto.MessageMetadata;
import org.apache.pulsar.common.api.proto.ProducerAccessMode;
import org.apache.pulsar.common.api.proto.ProtocolVersion;
import org.apache.pulsar.common.api.proto.Schema;
import org.apache.pulsar.common.api.proto.ServerError;
import org.apache.pulsar.common.api.proto.TxnAction;
import org.apache.pulsar.common.intercept.InterceptException;
import org.apache.pulsar.common.naming.Metadata;
import org.apache.pulsar.common.naming.NamespaceName;
import org.apache.pulsar.common.naming.TopicName;
import org.apache.pulsar.common.policies.data.BacklogQuota;
import org.apache.pulsar.common.policies.data.NamespaceOperation;
import org.apache.pulsar.common.policies.data.TopicOperation;
import org.apache.pulsar.common.policies.data.stats.ConsumerStatsImpl;
import org.apache.pulsar.common.protocol.ByteBufPair;
import org.apache.pulsar.common.protocol.CommandUtils;
import org.apache.pulsar.common.protocol.Commands;
import org.apache.pulsar.common.protocol.PulsarHandler;
import org.apache.pulsar.common.protocol.schema.SchemaData;
import org.apache.pulsar.common.protocol.schema.SchemaVersion;
import org.apache.pulsar.common.schema.SchemaType;
import org.apache.pulsar.common.util.FutureUtil;
import org.apache.pulsar.common.util.collections.ConcurrentLongHashMap;
import org.apache.pulsar.functions.utils.Exceptions;
import org.apache.pulsar.transaction.coordinator.TransactionCoordinatorID;
import org.apache.pulsar.transaction.coordinator.exceptions.CoordinatorException;
import org.apache.pulsar.transaction.coordinator.impl.MLTransactionMetadataStore;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class ServerCnx extends PulsarHandler implements TransportCnx {
private final BrokerService service;
private final SchemaRegistryService schemaService;
private final ConcurrentLongHashMap<CompletableFuture<Producer>> producers;
private final ConcurrentLongHashMap<CompletableFuture<Consumer>> consumers;
private State state;
private volatile boolean isActive = true;
String authRole = null;
private volatile AuthenticationDataSource authenticationData;
AuthenticationProvider authenticationProvider;
AuthenticationState authState;
// In case of proxy, if the authentication credentials are forwardable,
// it will hold the credentials of the original client
AuthenticationState originalAuthState;
AuthenticationDataSource originalAuthData;
private boolean pendingAuthChallengeResponse = false;
// Max number of pending requests per connections. If multiple producers are sharing the same connection the flow
// control done by a single producer might not be enough to prevent write spikes on the broker.
private final int maxPendingSendRequests;
private final int resumeReadsThreshold;
private int pendingSendRequest = 0;
private final String replicatorPrefix;
private String clientVersion = null;
private int nonPersistentPendingMessages = 0;
private final int maxNonPersistentPendingMessages;
private String originalPrincipal = null;
private Set<String> proxyRoles;
private boolean authenticateOriginalAuthData;
private final boolean schemaValidationEnforced;
private String authMethod = "none";
private final int maxMessageSize;
private boolean preciseDispatcherFlowControl;
private boolean preciseTopicPublishRateLimitingEnable;
private boolean encryptionRequireOnProducer;
// Flag to manage throttling-rate by atomically enable/disable read-channel.
private volatile boolean autoReadDisabledRateLimiting = false;
private FeatureFlags features;
private PulsarCommandSender commandSender;
private final ConnectionController connectionController;
private static final KeySharedMeta emptyKeySharedMeta = new KeySharedMeta()
.setKeySharedMode(KeySharedMode.AUTO_SPLIT);
// Flag to manage throttling-publish-buffer by atomically enable/disable read-channel.
private boolean autoReadDisabledPublishBufferLimiting = false;
private final long maxPendingBytesPerThread;
private final long resumeThresholdPendingBytesPerThread;
// Number of bytes pending to be published from a single specific IO thread.
private static final FastThreadLocal<MutableLong> pendingBytesPerThread = new FastThreadLocal<MutableLong>() {
@Override
protected MutableLong initialValue() throws Exception {
return new MutableLong();
}
};
// A set of connections tied to the current thread
private static final FastThreadLocal<Set<ServerCnx>> cnxsPerThread = new FastThreadLocal<Set<ServerCnx>>() {
@Override
protected Set<ServerCnx> initialValue() throws Exception {
return Collections.newSetFromMap(new IdentityHashMap<>());
}
};
enum State {
Start, Connected, Failed, Connecting
}
public ServerCnx(PulsarService pulsar) {
super(pulsar.getBrokerService().getKeepAliveIntervalSeconds(), TimeUnit.SECONDS);
this.service = pulsar.getBrokerService();
this.schemaService = pulsar.getSchemaRegistryService();
this.state = State.Start;
ServiceConfiguration conf = pulsar.getConfiguration();
// This maps are not heavily contended since most accesses are within the cnx thread
this.producers = new ConcurrentLongHashMap<>(8, 1);
this.consumers = new ConcurrentLongHashMap<>(8, 1);
this.replicatorPrefix = conf.getReplicatorPrefix();
this.maxNonPersistentPendingMessages = conf.getMaxConcurrentNonPersistentMessagePerConnection();
this.proxyRoles = conf.getProxyRoles();
this.authenticateOriginalAuthData = conf.isAuthenticateOriginalAuthData();
this.schemaValidationEnforced = conf.isSchemaValidationEnforced();
this.maxMessageSize = conf.getMaxMessageSize();
this.maxPendingSendRequests = conf.getMaxPendingPublishRequestsPerConnection();
this.resumeReadsThreshold = maxPendingSendRequests / 2;
this.preciseDispatcherFlowControl = conf.isPreciseDispatcherFlowControl();
this.preciseTopicPublishRateLimitingEnable = conf.isPreciseTopicPublishRateLimiterEnable();
this.encryptionRequireOnProducer = conf.isEncryptionRequireOnProducer();
// Assign a portion of max-pending bytes to each IO thread
this.maxPendingBytesPerThread = conf.getMaxMessagePublishBufferSizeInMB() * 1024L * 1024L
/ conf.getNumIOThreads();
this.resumeThresholdPendingBytesPerThread = this.maxPendingBytesPerThread / 2;
this.connectionController = new ConnectionController.DefaultConnectionController(conf);
}
@Override
public void channelActive(ChannelHandlerContext ctx) throws Exception {
super.channelActive(ctx);
ConnectionController.Sate sate = connectionController.increaseConnection(remoteAddress);
if (!sate.equals(ConnectionController.Sate.OK)) {
ctx.channel().writeAndFlush(Commands.newError(-1, ServerError.NotAllowedError,
sate.equals(ConnectionController.Sate.REACH_MAX_CONNECTION)
? "Reached the maximum number of connections"
: "Reached the maximum number of connections on address" + remoteAddress));
ctx.channel().close();
return;
}
log.info("New connection from {}", remoteAddress);
this.ctx = ctx;
this.commandSender = new PulsarCommandSenderImpl(getBrokerService().getInterceptor(), this);
this.service.getPulsarStats().recordConnectionCreate();
cnxsPerThread.get().add(this);
}
@Override
public void channelInactive(ChannelHandlerContext ctx) throws Exception {
super.channelInactive(ctx);
connectionController.decreaseConnection(ctx.channel().remoteAddress());
isActive = false;
log.info("Closed connection from {}", remoteAddress);
BrokerInterceptor brokerInterceptor = getBrokerService().getInterceptor();
if (brokerInterceptor != null) {
brokerInterceptor.onConnectionClosed(this);
}
cnxsPerThread.get().remove(this);
// Connection is gone, close the producers immediately
producers.forEach((__, producerFuture) -> {
if (producerFuture.isDone() && !producerFuture.isCompletedExceptionally()) {
Producer producer = producerFuture.getNow(null);
producer.closeNow(true);
}
});
consumers.forEach((__, consumerFuture) -> {
Consumer consumer;
if (consumerFuture.isDone() && !consumerFuture.isCompletedExceptionally()) {
consumer = consumerFuture.getNow(null);
} else {
return;
}
try {
consumer.close();
} catch (BrokerServiceException e) {
log.warn("Consumer {} was already closed: {}", consumer, e);
}
});
this.service.getPulsarStats().recordConnectionClose();
}
@Override
public void channelWritabilityChanged(ChannelHandlerContext ctx) throws Exception {
if (log.isDebugEnabled()) {
log.debug("Channel writability has changed to: {}", ctx.channel().isWritable());
}
}
@Override
public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
if (state != State.Failed) {
// No need to report stack trace for known exceptions that happen in disconnections
log.warn("[{}] Got exception {}", remoteAddress,
ClientCnx.isKnownException(cause) ? cause : ExceptionUtils.getStackTrace(cause));
state = State.Failed;
if (log.isDebugEnabled()) {
log.debug("[{}] connect state change to : [{}]", remoteAddress, State.Failed.name());
}
} else {
// At default info level, suppress all subsequent exceptions that are thrown when the connection has already
// failed
if (log.isDebugEnabled()) {
log.debug("[{}] Got exception: {}", remoteAddress, cause);
}
}
ctx.close();
}
/*
* If authentication and authorization is enabled(and not sasl) and
* if the authRole is one of proxyRoles we want to enforce
* - the originalPrincipal is given while connecting
* - originalPrincipal is not blank
* - originalPrincipal is not a proxy principal
*/
private boolean invalidOriginalPrincipal(String originalPrincipal) {
return (service.isAuthenticationEnabled() && service.isAuthorizationEnabled()
&& proxyRoles.contains(authRole) && (StringUtils.isBlank(originalPrincipal)
|| proxyRoles.contains(originalPrincipal)));
}
// ////
// // Incoming commands handling
// ////
private CompletableFuture<Boolean> isTopicOperationAllowed(TopicName topicName, TopicOperation operation) {
CompletableFuture<Boolean> isProxyAuthorizedFuture;
CompletableFuture<Boolean> isAuthorizedFuture;
if (service.isAuthorizationEnabled()) {
if (originalPrincipal != null) {
isProxyAuthorizedFuture = service.getAuthorizationService().allowTopicOperationAsync(
topicName, operation, originalPrincipal, getAuthenticationData());
} else {
isProxyAuthorizedFuture = CompletableFuture.completedFuture(true);
}
isAuthorizedFuture = service.getAuthorizationService().allowTopicOperationAsync(
topicName, operation, authRole, authenticationData);
} else {
isProxyAuthorizedFuture = CompletableFuture.completedFuture(true);
isAuthorizedFuture = CompletableFuture.completedFuture(true);
}
return isProxyAuthorizedFuture.thenCombine(isAuthorizedFuture, (isProxyAuthorized, isAuthorized) -> {
if (!isProxyAuthorized) {
log.warn("OriginalRole {} is not authorized to perform operation {} on topic {}",
originalPrincipal, operation, topicName);
}
if (!isAuthorized) {
log.warn("Role {} is not authorized to perform operation {} on topic {}",
authRole, operation, topicName);
}
return isProxyAuthorized && isAuthorized;
});
}
private CompletableFuture<Boolean> isTopicOperationAllowed(TopicName topicName, String subscriptionName,
TopicOperation operation) {
CompletableFuture<Boolean> isProxyAuthorizedFuture;
CompletableFuture<Boolean> isAuthorizedFuture;
if (service.isAuthorizationEnabled()) {
if (authenticationData == null) {
authenticationData = new AuthenticationDataCommand("", subscriptionName);
} else {
authenticationData.setSubscription(subscriptionName);
}
if (originalAuthData != null) {
originalAuthData.setSubscription(subscriptionName);
}
return isTopicOperationAllowed(topicName, operation);
} else {
isProxyAuthorizedFuture = CompletableFuture.completedFuture(true);
isAuthorizedFuture = CompletableFuture.completedFuture(true);
}
return isProxyAuthorizedFuture.thenCombine(isAuthorizedFuture, (isProxyAuthorized, isAuthorized) -> {
if (!isProxyAuthorized) {
log.warn("OriginalRole {} is not authorized to perform operation {} on topic {}, subscription {}",
originalPrincipal, operation, topicName, subscriptionName);
}
if (!isAuthorized) {
log.warn("Role {} is not authorized to perform operation {} on topic {}, subscription {}",
authRole, operation, topicName, subscriptionName);
}
return isProxyAuthorized && isAuthorized;
});
}
@Override
protected void handleLookup(CommandLookupTopic lookup) {
final long requestId = lookup.getRequestId();
final boolean authoritative = lookup.isAuthoritative();
final String advertisedListenerName = lookup.hasAdvertisedListenerName() ? lookup.getAdvertisedListenerName()
: null;
if (log.isDebugEnabled()) {
log.debug("[{}] Received Lookup from {} for {}", lookup.getTopic(), remoteAddress, requestId);
}
TopicName topicName = validateTopicName(lookup.getTopic(), requestId, lookup);
if (topicName == null) {
return;
}
final Semaphore lookupSemaphore = service.getLookupRequestSemaphore();
if (lookupSemaphore.tryAcquire()) {
if (invalidOriginalPrincipal(originalPrincipal)) {
final String msg = "Valid Proxy Client role should be provided for lookup ";
log.warn("[{}] {} with role {} and proxyClientAuthRole {} on topic {}", remoteAddress, msg, authRole,
originalPrincipal, topicName);
ctx.writeAndFlush(newLookupErrorResponse(ServerError.AuthorizationError, msg, requestId));
lookupSemaphore.release();
return;
}
isTopicOperationAllowed(topicName, TopicOperation.LOOKUP).thenApply(isAuthorized -> {
if (isAuthorized) {
lookupTopicAsync(getBrokerService().pulsar(), topicName, authoritative,
getPrincipal(), getAuthenticationData(),
requestId, advertisedListenerName).handle((lookupResponse, ex) -> {
if (ex == null) {
ctx.writeAndFlush(lookupResponse);
} else {
// it should never happen
log.warn("[{}] lookup failed with error {}, {}", remoteAddress, topicName,
ex.getMessage(), ex);
ctx.writeAndFlush(newLookupErrorResponse(ServerError.ServiceNotReady,
ex.getMessage(), requestId));
}
lookupSemaphore.release();
return null;
});
} else {
final String msg = "Proxy Client is not authorized to Lookup";
log.warn("[{}] {} with role {} on topic {}", remoteAddress, msg, getPrincipal(), topicName);
ctx.writeAndFlush(newLookupErrorResponse(ServerError.AuthorizationError, msg, requestId));
lookupSemaphore.release();
}
return null;
}).exceptionally(ex -> {
logAuthException(remoteAddress, "lookup", getPrincipal(), Optional.of(topicName), ex);
final String msg = "Exception occurred while trying to authorize lookup";
ctx.writeAndFlush(newLookupErrorResponse(ServerError.AuthorizationError, msg, requestId));
lookupSemaphore.release();
return null;
});
} else {
if (log.isDebugEnabled()) {
log.debug("[{}] Failed lookup due to too many lookup-requests {}", remoteAddress, topicName);
}
ctx.writeAndFlush(newLookupErrorResponse(ServerError.TooManyRequests,
"Failed due to too many pending lookup requests", requestId));
}
}
@Override
protected void handlePartitionMetadataRequest(CommandPartitionedTopicMetadata partitionMetadata) {
final long requestId = partitionMetadata.getRequestId();
if (log.isDebugEnabled()) {
log.debug("[{}] Received PartitionMetadataLookup from {} for {}", partitionMetadata.getTopic(),
remoteAddress, requestId);
}
TopicName topicName = validateTopicName(partitionMetadata.getTopic(), requestId, partitionMetadata);
if (topicName == null) {
return;
}
final Semaphore lookupSemaphore = service.getLookupRequestSemaphore();
if (lookupSemaphore.tryAcquire()) {
if (invalidOriginalPrincipal(originalPrincipal)) {
final String msg = "Valid Proxy Client role should be provided for getPartitionMetadataRequest ";
log.warn("[{}] {} with role {} and proxyClientAuthRole {} on topic {}", remoteAddress, msg, authRole,
originalPrincipal, topicName);
commandSender.sendPartitionMetadataResponse(ServerError.AuthorizationError, msg, requestId);
lookupSemaphore.release();
return;
}
isTopicOperationAllowed(topicName, TopicOperation.LOOKUP).thenApply(isAuthorized -> {
if (isAuthorized) {
unsafeGetPartitionedTopicMetadataAsync(getBrokerService().pulsar(), topicName)
.handle((metadata, ex) -> {
if (ex == null) {
int partitions = metadata.partitions;
commandSender.sendPartitionMetadataResponse(partitions, requestId);
} else {
if (ex instanceof PulsarClientException) {
log.warn("Failed to authorize {} at [{}] on topic {} : {}", getRole(),
remoteAddress, topicName, ex.getMessage());
commandSender.sendPartitionMetadataResponse(ServerError.AuthorizationError,
ex.getMessage(), requestId);
} else {
log.warn("Failed to get Partitioned Metadata [{}] {}: {}", remoteAddress,
topicName, ex.getMessage(), ex);
ServerError error = (ex instanceof RestException)
&& ((RestException) ex).getResponse().getStatus() < 500
? ServerError.MetadataError
: ServerError.ServiceNotReady;
commandSender.sendPartitionMetadataResponse(error, ex.getMessage(), requestId);
}
}
lookupSemaphore.release();
return null;
});
} else {
final String msg = "Proxy Client is not authorized to Get Partition Metadata";
log.warn("[{}] {} with role {} on topic {}", remoteAddress, msg, getPrincipal(), topicName);
ctx.writeAndFlush(
Commands.newPartitionMetadataResponse(ServerError.AuthorizationError, msg, requestId));
lookupSemaphore.release();
}
return null;
}).exceptionally(ex -> {
logAuthException(remoteAddress, "partition-metadata", getPrincipal(), Optional.of(topicName), ex);
final String msg = "Exception occurred while trying to authorize get Partition Metadata";
ctx.writeAndFlush(Commands.newPartitionMetadataResponse(ServerError.AuthorizationError, msg,
requestId));
lookupSemaphore.release();
return null;
});
} else {
if (log.isDebugEnabled()) {
log.debug("[{}] Failed Partition-Metadata lookup due to too many lookup-requests {}", remoteAddress,
topicName);
}
commandSender.sendPartitionMetadataResponse(ServerError.TooManyRequests,
"Failed due to too many pending lookup requests", requestId);
}
}
@Override
protected void handleConsumerStats(CommandConsumerStats commandConsumerStats) {
if (log.isDebugEnabled()) {
log.debug("Received CommandConsumerStats call from {}", remoteAddress);
}
final long requestId = commandConsumerStats.getRequestId();
final long consumerId = commandConsumerStats.getConsumerId();
CompletableFuture<Consumer> consumerFuture = consumers.get(consumerId);
Consumer consumer = consumerFuture.getNow(null);
ByteBuf msg = null;
if (consumer == null) {
log.error(
"Failed to get consumer-stats response - Consumer not found for"
+ " CommandConsumerStats[remoteAddress = {}, requestId = {}, consumerId = {}]",
remoteAddress, requestId, consumerId);
msg = Commands.newConsumerStatsResponse(ServerError.ConsumerNotFound,
"Consumer " + consumerId + " not found", requestId);
} else {
if (log.isDebugEnabled()) {
log.debug("CommandConsumerStats[requestId = {}, consumer = {}]", requestId, consumer);
}
msg = createConsumerStatsResponse(consumer, requestId);
}
ctx.writeAndFlush(msg);
}
ByteBuf createConsumerStatsResponse(Consumer consumer, long requestId) {
ConsumerStatsImpl consumerStats = consumer.getStats();
Subscription subscription = consumer.getSubscription();
BaseCommand cmd = Commands.newConsumerStatsResponseCommand(ServerError.UnknownError, null, requestId);
cmd.getConsumerStatsResponse()
.clearErrorCode()
.setRequestId(requestId)
.setMsgRateOut(consumerStats.msgRateOut)
.setMsgThroughputOut(consumerStats.msgThroughputOut)
.setMsgRateRedeliver(consumerStats.msgRateRedeliver)
.setConsumerName(consumerStats.consumerName)
.setAvailablePermits(consumerStats.availablePermits)
.setUnackedMessages(consumerStats.unackedMessages)
.setBlockedConsumerOnUnackedMsgs(consumerStats.blockedConsumerOnUnackedMsgs)
.setAddress(consumerStats.getAddress())
.setConnectedSince(consumerStats.getConnectedSince())
.setMsgBacklog(subscription.getNumberOfEntriesInBacklog(false))
.setMsgRateExpired(subscription.getExpiredMessageRate())
.setType(subscription.getTypeString());
return Commands.serializeWithSize(cmd);
}
// complete the connect and sent newConnected command
private void completeConnect(int clientProtoVersion, String clientVersion) {
ctx.writeAndFlush(Commands.newConnected(clientProtoVersion, maxMessageSize));
state = State.Connected;
service.getPulsarStats().recordConnectionCreateSuccess();
if (log.isDebugEnabled()) {
log.debug("[{}] connect state change to : [{}]", remoteAddress, State.Connected.name());
}
setRemoteEndpointProtocolVersion(clientProtoVersion);
if (isNotBlank(clientVersion) && !clientVersion.contains(" ") /* ignore default version: pulsar client */) {
this.clientVersion = clientVersion.intern();
}
}
// According to auth result, send newConnected or newAuthChallenge command.
private State doAuthentication(AuthData clientData,
int clientProtocolVersion,
String clientVersion) throws Exception {
// The original auth state can only be set on subsequent auth attempts (and only
// in presence of a proxy and if the proxy is forwarding the credentials).
// In this case, the re-validation needs to be done against the original client
// credentials.
boolean useOriginalAuthState = (originalAuthState != null);
AuthenticationState authState = useOriginalAuthState ? originalAuthState : this.authState;
String authRole = useOriginalAuthState ? originalPrincipal : this.authRole;
AuthData brokerData = authState.authenticate(clientData);
if (log.isDebugEnabled()) {
log.debug("Authenticate using original auth state : {}, role = {}", useOriginalAuthState, authRole);
}
if (authState.isComplete()) {
// Authentication has completed. It was either:
// 1. the 1st time the authentication process was done, in which case we'll
// a `CommandConnected` response
// 2. an authentication refresh, in which case we need to refresh authenticationData
String newAuthRole = authState.getAuthRole();
// Refresh the auth data.
this.authenticationData = authState.getAuthDataSource();
if (log.isDebugEnabled()) {
log.debug("[{}] Auth data refreshed for role={}", remoteAddress, this.authRole);
}
if (!useOriginalAuthState) {
this.authRole = newAuthRole;
}
if (log.isDebugEnabled()) {
log.debug("[{}] Client successfully authenticated with {} role {} and originalPrincipal {}",
remoteAddress, authMethod, this.authRole, originalPrincipal);
}
if (state != State.Connected) {
// First time authentication is done
completeConnect(clientProtocolVersion, clientVersion);
} else {
// If the connection was already ready, it means we're doing a refresh
if (!StringUtils.isEmpty(authRole)) {
if (!authRole.equals(newAuthRole)) {
log.warn("[{}] Principal cannot change during an authentication refresh expected={} got={}",
remoteAddress, authRole, newAuthRole);
ctx.close();
} else {
log.info("[{}] Refreshed authentication credentials for role {}", remoteAddress, authRole);
}
}
}
return State.Connected;
}
// auth not complete, continue auth with client side.
ctx.writeAndFlush(Commands.newAuthChallenge(authMethod, brokerData, clientProtocolVersion));
if (log.isDebugEnabled()) {
log.debug("[{}] Authentication in progress client by method {}.",
remoteAddress, authMethod);
log.debug("[{}] connect state change to : [{}]", remoteAddress, State.Connecting.name());
}
return State.Connecting;
}
public void refreshAuthenticationCredentials() {
AuthenticationState authState = this.originalAuthState != null ? originalAuthState : this.authState;
if (authState == null) {
// Authentication is disabled or there's no local state to refresh
return;
} else if (getState() != State.Connected || !isActive) {
// Connection is either still being established or already closed.
return;
} else if (authState != null && !authState.isExpired()) {
// Credentials are still valid. Nothing to do at this point
return;
} else if (originalPrincipal != null && originalAuthState == null) {
log.info(
"[{}] Cannot revalidate user credential when using proxy and"
+ " not forwarding the credentials. Closing connection",
remoteAddress);
return;
}
ctx.executor().execute(SafeRun.safeRun(() -> {
log.info("[{}] Refreshing authentication credentials for originalPrincipal {} and authRole {}",
remoteAddress, originalPrincipal, this.authRole);
if (!supportsAuthenticationRefresh()) {
log.warn("[{}] Closing connection because client doesn't support auth credentials refresh",
remoteAddress);
ctx.close();
return;
}
if (pendingAuthChallengeResponse) {
log.warn("[{}] Closing connection after timeout on refreshing auth credentials",
remoteAddress);
ctx.close();
return;
}
try {
AuthData brokerData = authState.refreshAuthentication();
ctx.writeAndFlush(Commands.newAuthChallenge(authMethod, brokerData,
getRemoteEndpointProtocolVersion()));
if (log.isDebugEnabled()) {
log.debug("[{}] Sent auth challenge to client to refresh credentials with method: {}.",
remoteAddress, authMethod);
}
pendingAuthChallengeResponse = true;
} catch (AuthenticationException e) {
log.warn("[{}] Failed to refresh authentication: {}", remoteAddress, e);
ctx.close();
}
}));
}
private static final byte[] emptyArray = new byte[0];
@Override
protected void handleConnect(CommandConnect connect) {
checkArgument(state == State.Start);
if (log.isDebugEnabled()) {
log.debug("Received CONNECT from {}, auth enabled: {}:"
+ " has original principal = {}, original principal = {}",
remoteAddress,
service.isAuthenticationEnabled(),
connect.hasOriginalPrincipal(),
connect.hasOriginalPrincipal() ? connect.getOriginalPrincipal() : null);
}
String clientVersion = connect.getClientVersion();
int clientProtocolVersion = connect.getProtocolVersion();
features = new FeatureFlags();
if (connect.hasFeatureFlags()) {
features.copyFrom(connect.getFeatureFlags());
}
if (!service.isAuthenticationEnabled()) {
completeConnect(clientProtocolVersion, clientVersion);
return;
}
try {
byte[] authData = connect.hasAuthData() ? connect.getAuthData() : emptyArray;
AuthData clientData = AuthData.of(authData);
// init authentication
if (connect.hasAuthMethodName()) {
authMethod = connect.getAuthMethodName();
} else if (connect.hasAuthMethod()) {
// Legacy client is passing enum
authMethod = connect.getAuthMethod().name().substring(10).toLowerCase();
} else {
authMethod = "none";
}
authenticationProvider = getBrokerService()
.getAuthenticationService()
.getAuthenticationProvider(authMethod);
// Not find provider named authMethod. Most used for tests.
// In AuthenticationDisabled, it will set authMethod "none".
if (authenticationProvider == null) {
authRole = getBrokerService().getAuthenticationService().getAnonymousUserRole()
.orElseThrow(() ->
new AuthenticationException("No anonymous role, and no authentication provider configured"));
completeConnect(clientProtocolVersion, clientVersion);
return;
}
// init authState and other var
ChannelHandler sslHandler = ctx.channel().pipeline().get(PulsarChannelInitializer.TLS_HANDLER);
SSLSession sslSession = null;
if (sslHandler != null) {
sslSession = ((SslHandler) sslHandler).engine().getSession();
}
authState = authenticationProvider.newAuthState(clientData, remoteAddress, sslSession);
authenticationData = authState.getAuthDataSource();
if (log.isDebugEnabled()) {
log.debug("[{}] Authenticate role : {}", remoteAddress,
authState != null ? authState.getAuthRole() : null);
}
state = doAuthentication(clientData, clientProtocolVersion, clientVersion);
// This will fail the check if:
// 1. client is coming through a proxy
// 2. we require to validate the original credentials
// 3. no credentials were passed
if (connect.hasOriginalPrincipal() && service.getPulsar().getConfig().isAuthenticateOriginalAuthData()) {
// init authentication
String originalAuthMethod;
if (connect.hasOriginalAuthMethod()) {
originalAuthMethod = connect.getOriginalAuthMethod();
} else {
originalAuthMethod = "none";
}
AuthenticationProvider originalAuthenticationProvider = getBrokerService()
.getAuthenticationService()
.getAuthenticationProvider(originalAuthMethod);
if (originalAuthenticationProvider == null) {
throw new AuthenticationException(
String.format("Can't find AuthenticationProvider for original role"
+ " using auth method [%s] is not available", originalAuthMethod));
}
originalAuthState = originalAuthenticationProvider.newAuthState(
AuthData.of(connect.getOriginalAuthData().getBytes()),
remoteAddress,
sslSession);
originalAuthData = originalAuthState.getAuthDataSource();
originalPrincipal = originalAuthState.getAuthRole();
if (log.isDebugEnabled()) {
log.debug("[{}] Authenticate original role : {}", remoteAddress, originalPrincipal);
}
} else {
originalPrincipal = connect.hasOriginalPrincipal() ? connect.getOriginalPrincipal() : null;
if (log.isDebugEnabled()) {
log.debug("[{}] Authenticate original role (forwarded from proxy): {}",
remoteAddress, originalPrincipal);
}
}
} catch (Exception e) {
service.getPulsarStats().recordConnectionCreateFail();
logAuthException(remoteAddress, "connect", getPrincipal(), Optional.empty(), e);
String msg = "Unable to authenticate";
ctx.writeAndFlush(Commands.newError(-1, ServerError.AuthenticationError, msg));
close();
}
}
@Override
protected void handleAuthResponse(CommandAuthResponse authResponse) {
checkArgument(authResponse.hasResponse());
checkArgument(authResponse.getResponse().hasAuthData() && authResponse.getResponse().hasAuthMethodName());
pendingAuthChallengeResponse = false;
if (log.isDebugEnabled()) {
log.debug("Received AuthResponse from {}, auth method: {}",
remoteAddress, authResponse.getResponse().getAuthMethodName());
}
try {
AuthData clientData = AuthData.of(authResponse.getResponse().getAuthData());
doAuthentication(clientData, authResponse.getProtocolVersion(), authResponse.getClientVersion());
} catch (AuthenticationException e) {
service.getPulsarStats().recordConnectionCreateFail();
log.warn("[{}] Authentication failed: {} ", remoteAddress, e.getMessage());
ctx.writeAndFlush(Commands.newError(-1, ServerError.AuthenticationError, e.getMessage()));
close();
} catch (Exception e) {
service.getPulsarStats().recordConnectionCreateFail();
String msg = "Unable to handleAuthResponse";
log.warn("[{}] {} ", remoteAddress, msg, e);
ctx.writeAndFlush(Commands.newError(-1, ServerError.UnknownError, msg));
close();
}
}
@Override
protected void handleSubscribe(final CommandSubscribe subscribe) {
checkArgument(state == State.Connected);
final long requestId = subscribe.getRequestId();
final long consumerId = subscribe.getConsumerId();
TopicName topicName = validateTopicName(subscribe.getTopic(), requestId, subscribe);
if (topicName == null) {
return;
}
if (log.isDebugEnabled()) {
log.debug("[{}] Handle subscribe command: auth role = {}, original auth role = {}",
remoteAddress, authRole, originalPrincipal);
}
if (invalidOriginalPrincipal(originalPrincipal)) {
final String msg = "Valid Proxy Client role should be provided while subscribing ";
log.warn("[{}] {} with role {} and proxyClientAuthRole {} on topic {}", remoteAddress, msg, authRole,
originalPrincipal, topicName);
commandSender.sendErrorResponse(requestId, ServerError.AuthorizationError, msg);
return;
}
final String subscriptionName = subscribe.getSubscription();
final SubType subType = subscribe.getSubType();
final String consumerName = subscribe.hasConsumerName() ? subscribe.getConsumerName() : "";
final boolean isDurable = subscribe.isDurable();
final MessageIdImpl startMessageId = subscribe.hasStartMessageId() ? new BatchMessageIdImpl(
subscribe.getStartMessageId().getLedgerId(), subscribe.getStartMessageId().getEntryId(),
subscribe.getStartMessageId().getPartition(), subscribe.getStartMessageId().getBatchIndex())
: null;
final int priorityLevel = subscribe.hasPriorityLevel() ? subscribe.getPriorityLevel() : 0;
final boolean readCompacted = subscribe.hasReadCompacted() && subscribe.isReadCompacted();
final Map<String, String> metadata = CommandUtils.metadataFromCommand(subscribe);
final InitialPosition initialPosition = subscribe.getInitialPosition();
final long startMessageRollbackDurationSec = subscribe.hasStartMessageRollbackDurationSec()
? subscribe.getStartMessageRollbackDurationSec()
: -1;
final SchemaData schema = subscribe.hasSchema() ? getSchema(subscribe.getSchema()) : null;
final boolean isReplicated = subscribe.hasReplicateSubscriptionState()
&& subscribe.isReplicateSubscriptionState();
final boolean forceTopicCreation = subscribe.isForceTopicCreation();
final KeySharedMeta keySharedMeta = subscribe.hasKeySharedMeta()
? new KeySharedMeta().copyFrom(subscribe.getKeySharedMeta())
: emptyKeySharedMeta;
CompletableFuture<Boolean> isAuthorizedFuture = isTopicOperationAllowed(
topicName,
subscriptionName,
TopicOperation.CONSUME
);
isAuthorizedFuture.thenApply(isAuthorized -> {
if (isAuthorized) {
if (log.isDebugEnabled()) {
log.debug("[{}] Client is authorized to subscribe with role {}",
remoteAddress, getPrincipal());
}
log.info("[{}] Subscribing on topic {} / {}", remoteAddress, topicName, subscriptionName);
try {
Metadata.validateMetadata(metadata);
} catch (IllegalArgumentException iae) {
final String msg = iae.getMessage();
commandSender.sendErrorResponse(requestId, ServerError.MetadataError, msg);
return null;
}
CompletableFuture<Consumer> consumerFuture = new CompletableFuture<>();
CompletableFuture<Consumer> existingConsumerFuture = consumers.putIfAbsent(consumerId,
consumerFuture);
if (existingConsumerFuture != null) {
if (existingConsumerFuture.isDone() && !existingConsumerFuture.isCompletedExceptionally()) {
Consumer consumer = existingConsumerFuture.getNow(null);
log.info("[{}] Consumer with the same id is already created:"
+ " consumerId={}, consumer={}",
remoteAddress, consumerId, consumer);
commandSender.sendSuccessResponse(requestId);
return null;
} else {
// There was an early request to create a consumer with same consumerId. This can happen
// when
// client timeout is lower the broker timeouts. We need to wait until the previous
// consumer
// creation request either complete or fails.
log.warn("[{}][{}][{}] Consumer with id is already present on the connection,"
+ " consumerId={}", remoteAddress, topicName, subscriptionName, consumerId);
ServerError error = null;
if (!existingConsumerFuture.isDone()) {
error = ServerError.ServiceNotReady;
} else {
error = getErrorCode(existingConsumerFuture);
consumers.remove(consumerId, existingConsumerFuture);
}
commandSender.sendErrorResponse(requestId, error,
"Consumer is already present on the connection");
return null;
}
}
boolean createTopicIfDoesNotExist = forceTopicCreation
&& service.isAllowAutoTopicCreation(topicName.toString());