-
-
Notifications
You must be signed in to change notification settings - Fork 68
/
Copy pathAgent.hs
3009 lines (2789 loc) · 165 KB
/
Agent.hs
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
{-# LANGUAGE BangPatterns #-}
{-# LANGUAGE ConstraintKinds #-}
{-# LANGUAGE DataKinds #-}
{-# LANGUAGE DuplicateRecordFields #-}
{-# LANGUAGE FlexibleContexts #-}
{-# LANGUAGE FlexibleInstances #-}
{-# LANGUAGE GADTs #-}
{-# LANGUAGE KindSignatures #-}
{-# LANGUAGE LambdaCase #-}
{-# LANGUAGE NamedFieldPuns #-}
{-# LANGUAGE OverloadedLists #-}
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE PatternSynonyms #-}
{-# LANGUAGE RankNTypes #-}
{-# LANGUAGE ScopedTypeVariables #-}
{-# LANGUAGE TupleSections #-}
{-# LANGUAGE TypeApplications #-}
{-# OPTIONS_GHC -fno-warn-ambiguous-fields #-}
-- |
-- Module : Simplex.Messaging.Agent
-- Copyright : (c) simplex.chat
-- License : AGPL-3
--
-- Maintainer : [email protected]
-- Stability : experimental
-- Portability : non-portable
--
-- This module defines SMP protocol agent with SQLite persistence.
--
-- See https://github.com/simplex-chat/simplexmq/blob/master/protocol/agent-protocol.md
module Simplex.Messaging.Agent
( -- * SMP agent functional API
AgentClient (..),
AE,
SubscriptionsInfo (..),
MsgReq,
getSMPAgentClient,
getSMPAgentClient_,
disconnectAgentClient,
disposeAgentClient,
resumeAgentClient,
withConnLock,
withInvLock,
createUser,
deleteUser,
connRequestPQSupport,
createConnectionAsync,
joinConnectionAsync,
allowConnectionAsync,
acceptContactAsync,
ackMessageAsync,
switchConnectionAsync,
deleteConnectionAsync,
deleteConnectionsAsync,
createConnection,
changeConnectionUser,
prepareConnectionToJoin,
prepareConnectionToAccept,
joinConnection,
allowConnection,
acceptContact,
rejectContact,
subscribeConnection,
subscribeConnections,
getConnectionMessages,
getNotificationConns,
resubscribeConnection,
resubscribeConnections,
sendMessage,
sendMessages,
sendMessagesB,
ackMessage,
getConnectionQueueInfo,
switchConnection,
abortConnectionSwitch,
synchronizeRatchet,
suspendConnection,
deleteConnection,
deleteConnections,
getConnectionServers,
getConnectionRatchetAdHash,
setProtocolServers,
checkUserServers,
testProtocolServer,
setNtfServers,
setNetworkConfig,
setUserNetworkInfo,
reconnectAllServers,
reconnectSMPServer,
registerNtfToken,
verifyNtfToken,
checkNtfToken,
deleteNtfToken,
getNtfToken,
getNtfTokenData,
toggleConnectionNtfs,
xftpStartWorkers,
xftpStartSndWorkers,
xftpReceiveFile,
xftpDeleteRcvFile,
xftpDeleteRcvFiles,
xftpSendFile,
xftpSendDescription,
xftpDeleteSndFileInternal,
xftpDeleteSndFilesInternal,
xftpDeleteSndFileRemote,
xftpDeleteSndFilesRemote,
rcNewHostPairing,
rcConnectHost,
rcConnectCtrl,
rcDiscoverCtrl,
getAgentSubsTotal,
getAgentServersSummary,
resetAgentServersStats,
foregroundAgent,
suspendAgent,
execAgentStoreSQL,
getAgentMigrations,
debugAgentLocks,
getAgentSubscriptions,
logConnection,
-- for tests
withAgentEnv,
)
where
import Control.Logger.Simple
import Control.Monad
import Control.Monad.Except
import Control.Monad.Reader
import Control.Monad.Trans.Except
import Crypto.Random (ChaChaDRG)
import qualified Data.Aeson as J
import Data.Bifunctor (bimap, first, second)
import Data.ByteString.Char8 (ByteString)
import qualified Data.ByteString.Char8 as B
import Data.Composition ((.:), (.:.), (.::), (.::.))
import Data.Either (isRight, partitionEithers, rights)
import Data.Foldable (foldl', toList)
import Data.Functor (($>))
import Data.Functor.Identity
import Data.List (find)
import Data.List.NonEmpty (NonEmpty (..))
import qualified Data.List.NonEmpty as L
import Data.Map.Strict (Map)
import qualified Data.Map.Strict as M
import Data.Maybe (catMaybes, fromMaybe, isJust, isNothing, mapMaybe)
import Data.Set (Set)
import qualified Data.Set as S
import Data.Text (Text)
import qualified Data.Text as T
import Data.Time.Clock
import Data.Time.Clock.System (systemToUTCTime)
import Data.Traversable (mapAccumL)
import Data.Word (Word16)
import Simplex.FileTransfer.Agent (closeXFTPAgent, deleteSndFileInternal, deleteSndFileRemote, deleteSndFilesInternal, deleteSndFilesRemote, startXFTPSndWorkers, startXFTPWorkers, toFSFilePath, xftpDeleteRcvFile', xftpDeleteRcvFiles', xftpReceiveFile', xftpSendDescription', xftpSendFile')
import Simplex.FileTransfer.Description (ValidFileDescription)
import Simplex.FileTransfer.Protocol (FileParty (..))
import Simplex.FileTransfer.Types (RcvFileId, SndFileId)
import Simplex.FileTransfer.Util (removePath)
import Simplex.Messaging.Agent.Client
import Simplex.Messaging.Agent.Env.SQLite
import Simplex.Messaging.Agent.Lock (withLock, withLock')
import Simplex.Messaging.Agent.NtfSubSupervisor
import Simplex.Messaging.Agent.Protocol
import Simplex.Messaging.Agent.RetryInterval
import Simplex.Messaging.Agent.Stats
import Simplex.Messaging.Agent.Store
import Simplex.Messaging.Agent.Store.AgentStore
import Simplex.Messaging.Agent.Store.Common (DBStore)
import qualified Simplex.Messaging.Agent.Store.DB as DB
import qualified Simplex.Messaging.Agent.Store.Migrations as Migrations
import Simplex.Messaging.Agent.Store.Shared (UpMigration (..), upMigration)
import Simplex.Messaging.Client (SMPClientError, ServerTransmission (..), ServerTransmissionBatch, temporaryClientError, unexpectedResponse)
import qualified Simplex.Messaging.Crypto as C
import Simplex.Messaging.Crypto.File (CryptoFile, CryptoFileArgs)
import Simplex.Messaging.Crypto.Ratchet (PQEncryption, PQSupport (..), pattern PQEncOff, pattern PQEncOn, pattern PQSupportOff, pattern PQSupportOn)
import qualified Simplex.Messaging.Crypto.Ratchet as CR
import Simplex.Messaging.Encoding
import Simplex.Messaging.Encoding.String
import Simplex.Messaging.Notifications.Protocol (DeviceToken, NtfRegCode (NtfRegCode), NtfTknStatus (..), NtfTokenId, PNMessageData (..), pnMessagesP)
import Simplex.Messaging.Notifications.Types
import Simplex.Messaging.Parsers (parse)
import Simplex.Messaging.Protocol (BrokerMsg, Cmd (..), ErrorType (AUTH), MsgBody, MsgFlags (..), NtfServer, ProtoServerWithAuth, ProtocolType (..), ProtocolTypeI (..), SMPMsgMeta, SParty (..), SProtocolType (..), SndPublicAuthKey, SubscriptionMode (..), UserProtocol, VersionSMPC, sndAuthKeySMPClientVersion)
import qualified Simplex.Messaging.Protocol as SMP
import Simplex.Messaging.ServiceScheme (ServiceScheme (..))
import qualified Simplex.Messaging.TMap as TM
import Simplex.Messaging.Transport (SMPVersion)
import Simplex.Messaging.Util
import Simplex.Messaging.Version
import Simplex.RemoteControl.Client
import Simplex.RemoteControl.Invitation
import Simplex.RemoteControl.Types
import System.Mem.Weak (deRefWeak)
import UnliftIO.Concurrent (forkFinally, forkIO, killThread, mkWeakThreadId, threadDelay)
import qualified UnliftIO.Exception as E
import UnliftIO.STM
-- import GHC.Conc (unsafeIOToSTM)
type AE a = ExceptT AgentErrorType IO a
-- | Creates an SMP agent client instance
getSMPAgentClient :: AgentConfig -> InitialAgentServers -> DBStore -> Bool -> IO AgentClient
getSMPAgentClient = getSMPAgentClient_ 1
{-# INLINE getSMPAgentClient #-}
getSMPAgentClient_ :: Int -> AgentConfig -> InitialAgentServers -> DBStore -> Bool -> IO AgentClient
getSMPAgentClient_ clientId cfg initServers@InitialAgentServers {smp, xftp} store backgroundMode =
newSMPAgentEnv cfg store >>= runReaderT runAgent
where
runAgent = do
liftIO $ checkServers "SMP" smp >> checkServers "XFTP" xftp
currentTs <- liftIO getCurrentTime
c@AgentClient {acThread} <- liftIO . newAgentClient clientId initServers currentTs =<< ask
t <- runAgentThreads c `forkFinally` const (liftIO $ disconnectAgentClient c)
atomically . writeTVar acThread . Just =<< mkWeakThreadId t
pure c
checkServers protocol srvs =
forM_ (M.assocs srvs) $ \(userId, srvs') -> checkUserServers ("getSMPAgentClient " <> protocol <> " " <> tshow userId) srvs'
runAgentThreads c
| backgroundMode = run c "subscriber" $ subscriber c
| otherwise = do
restoreServersStats c
raceAny_
[ run c "subscriber" $ subscriber c,
run c "runNtfSupervisor" $ runNtfSupervisor c,
run c "cleanupManager" $ cleanupManager c,
run c "logServersStats" $ logServersStats c
]
`E.finally` saveServersStats c
run AgentClient {subQ, acThread} name a =
a `E.catchAny` \e -> whenM (isJust <$> readTVarIO acThread) $ do
logError $ "Agent thread " <> name <> " crashed: " <> tshow e
atomically $ writeTBQueue subQ ("", "", AEvt SAEConn $ ERR $ CRITICAL True $ show e)
logServersStats :: AgentClient -> AM' ()
logServersStats c = do
delay <- asks (initialLogStatsDelay . config)
liftIO $ threadDelay' delay
int <- asks (logStatsInterval . config)
forever $ do
liftIO $ waitUntilActive c
saveServersStats c
liftIO $ threadDelay' int
saveServersStats :: AgentClient -> AM' ()
saveServersStats c@AgentClient {subQ, smpServersStats, xftpServersStats, ntfServersStats} = do
sss <- mapM (liftIO . getAgentSMPServerStats) =<< readTVarIO smpServersStats
xss <- mapM (liftIO . getAgentXFTPServerStats) =<< readTVarIO xftpServersStats
nss <- mapM (liftIO . getAgentNtfServerStats) =<< readTVarIO ntfServersStats
let stats = AgentPersistedServerStats {smpServersStats = sss, xftpServersStats = xss, ntfServersStats = OptionalMap nss}
tryAgentError' (withStore' c (`updateServersStats` stats)) >>= \case
Left e -> atomically $ writeTBQueue subQ ("", "", AEvt SAEConn $ ERR $ INTERNAL $ show e)
Right () -> pure ()
restoreServersStats :: AgentClient -> AM' ()
restoreServersStats c@AgentClient {smpServersStats, xftpServersStats, ntfServersStats, srvStatsStartedAt} = do
tryAgentError' (withStore c getServersStats) >>= \case
Left e -> atomically $ writeTBQueue (subQ c) ("", "", AEvt SAEConn $ ERR $ INTERNAL $ show e)
Right (startedAt, Nothing) -> atomically $ writeTVar srvStatsStartedAt startedAt
Right (startedAt, Just AgentPersistedServerStats {smpServersStats = sss, xftpServersStats = xss, ntfServersStats = OptionalMap nss}) -> do
atomically $ writeTVar srvStatsStartedAt startedAt
atomically . writeTVar smpServersStats =<< mapM (atomically . newAgentSMPServerStats') sss
atomically . writeTVar xftpServersStats =<< mapM (atomically . newAgentXFTPServerStats') xss
atomically . writeTVar ntfServersStats =<< mapM (atomically . newAgentNtfServerStats') nss
disconnectAgentClient :: AgentClient -> IO ()
disconnectAgentClient c@AgentClient {agentEnv = Env {ntfSupervisor = ns, xftpAgent = xa}} = do
closeAgentClient c
closeNtfSupervisor ns
closeXFTPAgent xa
logConnection c False
-- only used in the tests
disposeAgentClient :: AgentClient -> IO ()
disposeAgentClient c@AgentClient {acThread, agentEnv = Env {store}} = do
t_ <- atomically (swapTVar acThread Nothing) $>>= (liftIO . deRefWeak)
disconnectAgentClient c
mapM_ killThread t_
liftIO $ closeStore store
resumeAgentClient :: AgentClient -> IO ()
resumeAgentClient c = atomically $ writeTVar (active c) True
{-# INLINE resumeAgentClient #-}
createUser :: AgentClient -> NonEmpty (ServerCfg 'PSMP) -> NonEmpty (ServerCfg 'PXFTP) -> AE UserId
createUser c = withAgentEnv c .: createUser' c
{-# INLINE createUser #-}
-- | Delete user record optionally deleting all user's connections on SMP servers
deleteUser :: AgentClient -> UserId -> Bool -> AE ()
deleteUser c = withAgentEnv c .: deleteUser' c
{-# INLINE deleteUser #-}
-- | Create SMP agent connection (NEW command) asynchronously, synchronous response is new connection id
createConnectionAsync :: ConnectionModeI c => AgentClient -> UserId -> ACorrId -> Bool -> SConnectionMode c -> CR.InitialKeys -> SubscriptionMode -> AE ConnId
createConnectionAsync c userId aCorrId enableNtfs = withAgentEnv c .:. newConnAsync c userId aCorrId enableNtfs
{-# INLINE createConnectionAsync #-}
-- | Join SMP agent connection (JOIN command) asynchronously, synchronous response is new connection id
joinConnectionAsync :: AgentClient -> UserId -> ACorrId -> Bool -> ConnectionRequestUri c -> ConnInfo -> PQSupport -> SubscriptionMode -> AE ConnId
joinConnectionAsync c userId aCorrId enableNtfs = withAgentEnv c .:: joinConnAsync c userId aCorrId enableNtfs
{-# INLINE joinConnectionAsync #-}
-- | Allow connection to continue after CONF notification (LET command), no synchronous response
allowConnectionAsync :: AgentClient -> ACorrId -> ConnId -> ConfirmationId -> ConnInfo -> AE ()
allowConnectionAsync c = withAgentEnv c .:: allowConnectionAsync' c
{-# INLINE allowConnectionAsync #-}
-- | Accept contact after REQ notification (ACPT command) asynchronously, synchronous response is new connection id
acceptContactAsync :: AgentClient -> ACorrId -> Bool -> ConfirmationId -> ConnInfo -> PQSupport -> SubscriptionMode -> AE ConnId
acceptContactAsync c aCorrId enableNtfs = withAgentEnv c .:: acceptContactAsync' c aCorrId enableNtfs
{-# INLINE acceptContactAsync #-}
-- | Acknowledge message (ACK command) asynchronously, no synchronous response
ackMessageAsync :: AgentClient -> ACorrId -> ConnId -> AgentMsgId -> Maybe MsgReceiptInfo -> AE ()
ackMessageAsync c = withAgentEnv c .:: ackMessageAsync' c
{-# INLINE ackMessageAsync #-}
-- | Switch connection to the new receive queue
switchConnectionAsync :: AgentClient -> ACorrId -> ConnId -> AE ConnectionStats
switchConnectionAsync c = withAgentEnv c .: switchConnectionAsync' c
{-# INLINE switchConnectionAsync #-}
-- | Delete SMP agent connection (DEL command) asynchronously, no synchronous response
deleteConnectionAsync :: AgentClient -> Bool -> ConnId -> AE ()
deleteConnectionAsync c waitDelivery = withAgentEnv c . deleteConnectionAsync' c waitDelivery
{-# INLINE deleteConnectionAsync #-}
-- | Delete SMP agent connections using batch commands asynchronously, no synchronous response
deleteConnectionsAsync :: AgentClient -> Bool -> [ConnId] -> AE ()
deleteConnectionsAsync c waitDelivery = withAgentEnv c . deleteConnectionsAsync' c waitDelivery
{-# INLINE deleteConnectionsAsync #-}
-- | Create SMP agent connection (NEW command)
createConnection :: AgentClient -> UserId -> Bool -> SConnectionMode c -> Maybe CRClientData -> CR.InitialKeys -> SubscriptionMode -> AE (ConnId, ConnectionRequestUri c)
createConnection c userId enableNtfs = withAgentEnv c .:: newConn c userId enableNtfs
{-# INLINE createConnection #-}
-- | Changes the user id associated with a connection
changeConnectionUser :: AgentClient -> UserId -> ConnId -> UserId -> AE ()
changeConnectionUser c oldUserId connId newUserId = withAgentEnv c $ changeConnectionUser' c oldUserId connId newUserId
{-# INLINE changeConnectionUser #-}
-- | Create SMP agent connection without queue (to be joined with joinConnection passing connection ID).
-- This method is required to prevent race condition when confirmation from peer is received before
-- the caller of joinConnection saves connection ID to the database.
-- Instead of it we could send confirmation asynchronously, but then it would be harder to report
-- "link deleted" (SMP AUTH) interactively, so this approach is simpler overall.
prepareConnectionToJoin :: AgentClient -> UserId -> Bool -> ConnectionRequestUri c -> PQSupport -> AE ConnId
prepareConnectionToJoin c userId enableNtfs = withAgentEnv c .: newConnToJoin c userId "" enableNtfs
-- | Create SMP agent connection without queue (to be joined with acceptContact passing invitation ID).
prepareConnectionToAccept :: AgentClient -> Bool -> ConfirmationId -> PQSupport -> AE ConnId
prepareConnectionToAccept c enableNtfs = withAgentEnv c .: newConnToAccept c "" enableNtfs
-- | Join SMP agent connection (JOIN command).
joinConnection :: AgentClient -> UserId -> ConnId -> Bool -> ConnectionRequestUri c -> ConnInfo -> PQSupport -> SubscriptionMode -> AE SndQueueSecured
joinConnection c userId connId enableNtfs = withAgentEnv c .:: joinConn c userId connId enableNtfs
{-# INLINE joinConnection #-}
-- | Allow connection to continue after CONF notification (LET command)
allowConnection :: AgentClient -> ConnId -> ConfirmationId -> ConnInfo -> AE ()
allowConnection c = withAgentEnv c .:. allowConnection' c
{-# INLINE allowConnection #-}
-- | Accept contact after REQ notification (ACPT command)
acceptContact :: AgentClient -> ConnId -> Bool -> ConfirmationId -> ConnInfo -> PQSupport -> SubscriptionMode -> AE SndQueueSecured
acceptContact c connId enableNtfs = withAgentEnv c .:: acceptContact' c connId enableNtfs
{-# INLINE acceptContact #-}
-- | Reject contact (RJCT command)
rejectContact :: AgentClient -> ConnId -> ConfirmationId -> AE ()
rejectContact c = withAgentEnv c .: rejectContact' c
{-# INLINE rejectContact #-}
-- | Subscribe to receive connection messages (SUB command)
subscribeConnection :: AgentClient -> ConnId -> AE ()
subscribeConnection c = withAgentEnv c . subscribeConnection' c
{-# INLINE subscribeConnection #-}
-- | Subscribe to receive connection messages from multiple connections, batching commands when possible
subscribeConnections :: AgentClient -> [ConnId] -> AE (Map ConnId (Either AgentErrorType ()))
subscribeConnections c = withAgentEnv c . subscribeConnections' c
{-# INLINE subscribeConnections #-}
-- | Get messages for connections (GET commands)
getConnectionMessages :: AgentClient -> NonEmpty ConnId -> IO (NonEmpty (Maybe SMPMsgMeta))
getConnectionMessages c = withAgentEnv' c . getConnectionMessages' c
{-# INLINE getConnectionMessages #-}
-- | Get connections for received notification
getNotificationConns :: AgentClient -> C.CbNonce -> ByteString -> AE (NonEmpty NotificationInfo)
getNotificationConns c = withAgentEnv c .: getNotificationConns' c
{-# INLINE getNotificationConns #-}
resubscribeConnection :: AgentClient -> ConnId -> AE ()
resubscribeConnection c = withAgentEnv c . resubscribeConnection' c
{-# INLINE resubscribeConnection #-}
resubscribeConnections :: AgentClient -> [ConnId] -> AE (Map ConnId (Either AgentErrorType ()))
resubscribeConnections c = withAgentEnv c . resubscribeConnections' c
{-# INLINE resubscribeConnections #-}
-- | Send message to the connection (SEND command)
sendMessage :: AgentClient -> ConnId -> PQEncryption -> MsgFlags -> MsgBody -> AE (AgentMsgId, PQEncryption)
sendMessage c = withAgentEnv c .:: sendMessage' c
{-# INLINE sendMessage #-}
-- When sending multiple messages to the same connection,
-- only the first MsgReq for this connection should have non-empty ConnId.
-- All subsequent MsgReq in traversable for this connection must be empty.
-- This is done to optimize processing by grouping all messages to one connection together.
type MsgReq = (ConnId, PQEncryption, MsgFlags, MsgBody)
-- | Send multiple messages to different connections (SEND command)
sendMessages :: AgentClient -> [MsgReq] -> AE [Either AgentErrorType (AgentMsgId, PQEncryption)]
sendMessages c = withAgentEnv c . sendMessages' c
{-# INLINE sendMessages #-}
sendMessagesB :: Traversable t => AgentClient -> t (Either AgentErrorType MsgReq) -> AE (t (Either AgentErrorType (AgentMsgId, PQEncryption)))
sendMessagesB c = withAgentEnv c . sendMessagesB' c
{-# INLINE sendMessagesB #-}
ackMessage :: AgentClient -> ConnId -> AgentMsgId -> Maybe MsgReceiptInfo -> AE ()
ackMessage c = withAgentEnv c .:. ackMessage' c
{-# INLINE ackMessage #-}
getConnectionQueueInfo :: AgentClient -> ConnId -> AE ServerQueueInfo
getConnectionQueueInfo c = withAgentEnv c . getConnectionQueueInfo' c
{-# INLINE getConnectionQueueInfo #-}
-- | Switch connection to the new receive queue
switchConnection :: AgentClient -> ConnId -> AE ConnectionStats
switchConnection c = withAgentEnv c . switchConnection' c
{-# INLINE switchConnection #-}
-- | Abort switching connection to the new receive queue
abortConnectionSwitch :: AgentClient -> ConnId -> AE ConnectionStats
abortConnectionSwitch c = withAgentEnv c . abortConnectionSwitch' c
{-# INLINE abortConnectionSwitch #-}
-- | Re-synchronize connection ratchet keys
synchronizeRatchet :: AgentClient -> ConnId -> PQSupport -> Bool -> AE ConnectionStats
synchronizeRatchet c = withAgentEnv c .:. synchronizeRatchet' c
{-# INLINE synchronizeRatchet #-}
-- | Suspend SMP agent connection (OFF command)
suspendConnection :: AgentClient -> ConnId -> AE ()
suspendConnection c = withAgentEnv c . suspendConnection' c
{-# INLINE suspendConnection #-}
-- | Delete SMP agent connection (DEL command)
deleteConnection :: AgentClient -> ConnId -> AE ()
deleteConnection c = withAgentEnv c . deleteConnection' c
{-# INLINE deleteConnection #-}
-- | Delete multiple connections, batching commands when possible
deleteConnections :: AgentClient -> [ConnId] -> AE (Map ConnId (Either AgentErrorType ()))
deleteConnections c = withAgentEnv c . deleteConnections' c
{-# INLINE deleteConnections #-}
-- | get servers used for connection
getConnectionServers :: AgentClient -> ConnId -> AE ConnectionStats
getConnectionServers c = withAgentEnv c . getConnectionServers' c
{-# INLINE getConnectionServers #-}
-- | get connection ratchet associated data hash for verification (should match peer AD hash)
getConnectionRatchetAdHash :: AgentClient -> ConnId -> AE ByteString
getConnectionRatchetAdHash c = withAgentEnv c . getConnectionRatchetAdHash' c
{-# INLINE getConnectionRatchetAdHash #-}
-- | Test protocol server
testProtocolServer :: forall p. ProtocolTypeI p => AgentClient -> UserId -> ProtoServerWithAuth p -> IO (Maybe ProtocolTestFailure)
testProtocolServer c userId srv = withAgentEnv' c $ case protocolTypeI @p of
SPSMP -> runSMPServerTest c userId srv
SPXFTP -> runXFTPServerTest c userId srv
SPNTF -> runNTFServerTest c userId srv
-- | set SOCKS5 proxy on/off and optionally set TCP timeouts for fast network
setNetworkConfig :: AgentClient -> NetworkConfig -> IO ()
setNetworkConfig c@AgentClient {useNetworkConfig, proxySessTs} cfg' = do
(spChanged, changed) <- atomically $ do
(_, cfg) <- readTVar useNetworkConfig
let changed = cfg /= cfg'
!cfgSlow = slowNetworkConfig cfg'
when changed $ writeTVar useNetworkConfig (cfgSlow, cfg')
pure (socksProxy cfg /= socksProxy cfg', changed)
when spChanged $ getCurrentTime >>= atomically . writeTVar proxySessTs
when changed $ reconnectAllServers c
setUserNetworkInfo :: AgentClient -> UserNetworkInfo -> IO ()
setUserNetworkInfo c@AgentClient {userNetworkInfo, userNetworkUpdated} ni = withAgentEnv' c $ do
ts' <- liftIO getCurrentTime
i <- asks $ userOfflineDelay . config
-- if network offline event happens in less than `userOfflineDelay` after the previous event, it is ignored
atomically . whenM ((isOnline ni ||) <$> notRecentlyChanged ts' i) $ do
writeTVar userNetworkInfo ni
writeTVar userNetworkUpdated $ Just ts'
where
notRecentlyChanged ts' i =
maybe True (\ts -> diffUTCTime ts' ts > i) <$> readTVar userNetworkUpdated
reconnectAllServers :: AgentClient -> IO ()
reconnectAllServers c = do
reconnectServerClients c smpClients
reconnectServerClients c xftpClients
reconnectServerClients c ntfClients
-- | Register device notifications token
registerNtfToken :: AgentClient -> DeviceToken -> NotificationsMode -> AE NtfTknStatus
registerNtfToken c = withAgentEnv c .: registerNtfToken' c
{-# INLINE registerNtfToken #-}
-- | Verify device notifications token
verifyNtfToken :: AgentClient -> DeviceToken -> C.CbNonce -> ByteString -> AE ()
verifyNtfToken c = withAgentEnv c .:. verifyNtfToken' c
{-# INLINE verifyNtfToken #-}
checkNtfToken :: AgentClient -> DeviceToken -> AE NtfTknStatus
checkNtfToken c = withAgentEnv c . checkNtfToken' c
{-# INLINE checkNtfToken #-}
deleteNtfToken :: AgentClient -> DeviceToken -> AE ()
deleteNtfToken c = withAgentEnv c . deleteNtfToken' c
{-# INLINE deleteNtfToken #-}
getNtfToken :: AgentClient -> AE (DeviceToken, NtfTknStatus, NotificationsMode, NtfServer)
getNtfToken c = withAgentEnv c $ getNtfToken' c
{-# INLINE getNtfToken #-}
getNtfTokenData :: AgentClient -> AE NtfToken
getNtfTokenData c = withAgentEnv c $ getNtfTokenData' c
{-# INLINE getNtfTokenData #-}
-- | Set connection notifications on/off
toggleConnectionNtfs :: AgentClient -> ConnId -> Bool -> AE ()
toggleConnectionNtfs c = withAgentEnv c .: toggleConnectionNtfs' c
{-# INLINE toggleConnectionNtfs #-}
xftpStartWorkers :: AgentClient -> Maybe FilePath -> AE ()
xftpStartWorkers c = withAgentEnv c . startXFTPWorkers c
{-# INLINE xftpStartWorkers #-}
xftpStartSndWorkers :: AgentClient -> Maybe FilePath -> AE ()
xftpStartSndWorkers c = withAgentEnv c . startXFTPSndWorkers c
{-# INLINE xftpStartSndWorkers #-}
-- | Receive XFTP file
xftpReceiveFile :: AgentClient -> UserId -> ValidFileDescription 'FRecipient -> Maybe CryptoFileArgs -> Bool -> AE RcvFileId
xftpReceiveFile c = withAgentEnv c .:: xftpReceiveFile' c
{-# INLINE xftpReceiveFile #-}
-- | Delete XFTP rcv file (deletes work files from file system and db records)
xftpDeleteRcvFile :: AgentClient -> RcvFileId -> IO ()
xftpDeleteRcvFile c = withAgentEnv' c . xftpDeleteRcvFile' c
{-# INLINE xftpDeleteRcvFile #-}
-- | Delete multiple rcv files, batching operations when possible (deletes work files from file system and db records)
xftpDeleteRcvFiles :: AgentClient -> [RcvFileId] -> IO ()
xftpDeleteRcvFiles c = withAgentEnv' c . xftpDeleteRcvFiles' c
{-# INLINE xftpDeleteRcvFiles #-}
-- | Send XFTP file
xftpSendFile :: AgentClient -> UserId -> CryptoFile -> Int -> AE SndFileId
xftpSendFile c = withAgentEnv c .:. xftpSendFile' c
{-# INLINE xftpSendFile #-}
-- | Send XFTP file
xftpSendDescription :: AgentClient -> UserId -> ValidFileDescription 'FRecipient -> Int -> AE SndFileId
xftpSendDescription c = withAgentEnv c .:. xftpSendDescription' c
{-# INLINE xftpSendDescription #-}
-- | Delete XFTP snd file internally (deletes work files from file system and db records)
xftpDeleteSndFileInternal :: AgentClient -> SndFileId -> IO ()
xftpDeleteSndFileInternal c = withAgentEnv' c . deleteSndFileInternal c
{-# INLINE xftpDeleteSndFileInternal #-}
-- | Delete multiple snd files internally, batching operations when possible (deletes work files from file system and db records)
xftpDeleteSndFilesInternal :: AgentClient -> [SndFileId] -> IO ()
xftpDeleteSndFilesInternal c = withAgentEnv' c . deleteSndFilesInternal c
{-# INLINE xftpDeleteSndFilesInternal #-}
-- | Delete XFTP snd file chunks on servers
xftpDeleteSndFileRemote :: AgentClient -> UserId -> SndFileId -> ValidFileDescription 'FSender -> IO ()
xftpDeleteSndFileRemote c = withAgentEnv' c .:. deleteSndFileRemote c
{-# INLINE xftpDeleteSndFileRemote #-}
-- | Delete XFTP snd file chunks on servers for multiple snd files, batching operations when possible
xftpDeleteSndFilesRemote :: AgentClient -> UserId -> [(SndFileId, ValidFileDescription 'FSender)] -> IO ()
xftpDeleteSndFilesRemote c = withAgentEnv' c .: deleteSndFilesRemote c
{-# INLINE xftpDeleteSndFilesRemote #-}
-- | Create new remote host pairing
rcNewHostPairing :: AgentClient -> IO RCHostPairing
rcNewHostPairing AgentClient {agentEnv = Env {random}} = newRCHostPairing random
{-# INLINE rcNewHostPairing #-}
-- | start TLS server for remote host with optional multicast
rcConnectHost :: AgentClient -> RCHostPairing -> J.Value -> Bool -> Maybe RCCtrlAddress -> Maybe Word16 -> AE RCHostConnection
rcConnectHost AgentClient {agentEnv = Env {random}} = withExceptT RCP .::. connectRCHost random
{-# INLINE rcConnectHost #-}
-- | connect to remote controller via URI
rcConnectCtrl :: AgentClient -> RCVerifiedInvitation -> Maybe RCCtrlPairing -> J.Value -> AE RCCtrlConnection
rcConnectCtrl AgentClient {agentEnv = Env {random}} = withExceptT RCP .:. connectRCCtrl random
{-# INLINE rcConnectCtrl #-}
-- | connect to known remote controller via multicast
rcDiscoverCtrl :: AgentClient -> NonEmpty RCCtrlPairing -> AE (RCCtrlPairing, RCVerifiedInvitation)
rcDiscoverCtrl AgentClient {agentEnv = Env {multicastSubscribers = subs}} = withExceptT RCP . discoverRCCtrl subs
{-# INLINE rcDiscoverCtrl #-}
resetAgentServersStats :: AgentClient -> AE ()
resetAgentServersStats c = withAgentEnv c $ resetAgentServersStats' c
{-# INLINE resetAgentServersStats #-}
withAgentEnv' :: AgentClient -> AM' a -> IO a
withAgentEnv' c = (`runReaderT` agentEnv c)
{-# INLINE withAgentEnv' #-}
withAgentEnv :: AgentClient -> AM a -> AE a
withAgentEnv c a = ExceptT $ runExceptT a `runReaderT` agentEnv c
{-# INLINE withAgentEnv #-}
logConnection :: AgentClient -> Bool -> IO ()
logConnection c connected =
let event = if connected then "connected to" else "disconnected from"
in logInfo $ T.unwords ["client", tshow (clientId c), event, "Agent"]
createUser' :: AgentClient -> NonEmpty (ServerCfg 'PSMP) -> NonEmpty (ServerCfg 'PXFTP) -> AM UserId
createUser' c smp xftp = do
liftIO $ checkUserServers "createUser SMP" smp
liftIO $ checkUserServers "createUser XFTP" xftp
userId <- withStore' c createUserRecord
atomically $ TM.insert userId (mkUserServers smp) $ smpServers c
atomically $ TM.insert userId (mkUserServers xftp) $ xftpServers c
pure userId
deleteUser' :: AgentClient -> UserId -> Bool -> AM ()
deleteUser' c@AgentClient {smpServersStats, xftpServersStats} userId delSMPQueues = do
if delSMPQueues
then withStore c (`setUserDeleted` userId) >>= deleteConnectionsAsync_ delUser c False
else withStore c (`deleteUserRecord` userId)
atomically $ TM.delete userId $ smpServers c
atomically $ TM.delete userId $ xftpServers c
atomically $ modifyTVar' smpServersStats $ M.filterWithKey (\(userId', _) _ -> userId' /= userId)
atomically $ modifyTVar' xftpServersStats $ M.filterWithKey (\(userId', _) _ -> userId' /= userId)
lift $ saveServersStats c
where
delUser =
whenM (withStore' c (`deleteUserWithoutConns` userId)) . atomically $
writeTBQueue (subQ c) ("", "", AEvt SAENone $ DEL_USER userId)
newConnAsync :: ConnectionModeI c => AgentClient -> UserId -> ACorrId -> Bool -> SConnectionMode c -> CR.InitialKeys -> SubscriptionMode -> AM ConnId
newConnAsync c userId corrId enableNtfs cMode pqInitKeys subMode = do
connId <- newConnNoQueues c userId enableNtfs cMode (CR.connPQEncryption pqInitKeys)
enqueueCommand c corrId connId Nothing $ AClientCommand $ NEW enableNtfs (ACM cMode) pqInitKeys subMode
pure connId
newConnNoQueues :: AgentClient -> UserId -> Bool -> SConnectionMode c -> PQSupport -> AM ConnId
newConnNoQueues c userId enableNtfs cMode pqSupport = do
g <- asks random
connAgentVersion <- asks $ maxVersion . smpAgentVRange . config
let cData = ConnData {userId, connId = "", connAgentVersion, enableNtfs, lastExternalSndId = 0, deleted = False, ratchetSyncState = RSOk, pqSupport}
withStore c $ \db -> createNewConn db g cData cMode
joinConnAsync :: AgentClient -> UserId -> ACorrId -> Bool -> ConnectionRequestUri c -> ConnInfo -> PQSupport -> SubscriptionMode -> AM ConnId
joinConnAsync c userId corrId enableNtfs cReqUri@CRInvitationUri {} cInfo pqSup subMode = do
withInvLock c (strEncode cReqUri) "joinConnAsync" $ do
lift (compatibleInvitationUri cReqUri) >>= \case
Just (_, Compatible (CR.E2ERatchetParams v _ _ _), Compatible connAgentVersion) -> do
g <- asks random
let pqSupport = pqSup `CR.pqSupportAnd` versionPQSupport_ connAgentVersion (Just v)
cData = ConnData {userId, connId = "", connAgentVersion, enableNtfs, lastExternalSndId = 0, deleted = False, ratchetSyncState = RSOk, pqSupport}
connId <- withStore c $ \db -> createNewConn db g cData SCMInvitation
enqueueCommand c corrId connId Nothing $ AClientCommand $ JOIN enableNtfs (ACR sConnectionMode cReqUri) pqSupport subMode cInfo
pure connId
Nothing -> throwE $ AGENT A_VERSION
joinConnAsync _c _userId _corrId _enableNtfs (CRContactUri _) _subMode _cInfo _pqEncryption =
throwE $ CMD PROHIBITED "joinConnAsync"
allowConnectionAsync' :: AgentClient -> ACorrId -> ConnId -> ConfirmationId -> ConnInfo -> AM ()
allowConnectionAsync' c corrId connId confId ownConnInfo =
withStore c (`getConn` connId) >>= \case
SomeConn _ (RcvConnection _ RcvQueue {server}) ->
enqueueCommand c corrId connId (Just server) $ AClientCommand $ LET confId ownConnInfo
_ -> throwE $ CMD PROHIBITED "allowConnectionAsync"
-- TODO
-- Unlike `acceptContact` (synchronous version), `acceptContactAsync` uses `unacceptInvitation` in case of error,
-- because we're not taking lock here. In practice it is less likely to fail because it doesn't involve network IO,
-- and also it can't be triggered by user concurrently several times in a row. It could be improved similarly to
-- `acceptContact` by creating a new map for invitation locks and taking lock here, and removing `unacceptInvitation`
-- while marking invitation as accepted inside "lock level transaction" after successful `joinConnAsync`.
acceptContactAsync' :: AgentClient -> ACorrId -> Bool -> InvitationId -> ConnInfo -> PQSupport -> SubscriptionMode -> AM ConnId
acceptContactAsync' c corrId enableNtfs invId ownConnInfo pqSupport subMode = do
Invitation {contactConnId, connReq} <- withStore c $ \db -> getInvitation db "acceptContactAsync'" invId
withStore c (`getConn` contactConnId) >>= \case
SomeConn _ (ContactConnection ConnData {userId} _) -> do
withStore' c $ \db -> acceptInvitation db invId ownConnInfo
joinConnAsync c userId corrId enableNtfs connReq ownConnInfo pqSupport subMode `catchAgentError` \err -> do
withStore' c (`unacceptInvitation` invId)
throwE err
_ -> throwE $ CMD PROHIBITED "acceptContactAsync"
ackMessageAsync' :: AgentClient -> ACorrId -> ConnId -> AgentMsgId -> Maybe MsgReceiptInfo -> AM ()
ackMessageAsync' c corrId connId msgId rcptInfo_ = do
SomeConn cType _ <- withStore c (`getConn` connId)
case cType of
SCDuplex -> enqueueAck
SCRcv -> enqueueAck
SCSnd -> throwE $ CONN SIMPLEX
SCContact -> throwE $ CMD PROHIBITED "ackMessageAsync: SCContact"
SCNew -> throwE $ CMD PROHIBITED "ackMessageAsync: SCNew"
where
enqueueAck :: AM ()
enqueueAck = do
let mId = InternalId msgId
RcvMsg {msgType} <- withStore c $ \db -> getRcvMsg db connId mId
when (isJust rcptInfo_ && msgType /= AM_A_MSG_) $ throwE $ CMD PROHIBITED "ackMessageAsync: receipt not allowed"
(RcvQueue {server}, _) <- withStore c $ \db -> setMsgUserAck db connId mId
enqueueCommand c corrId connId (Just server) . AClientCommand $ ACK msgId rcptInfo_
deleteConnectionAsync' :: AgentClient -> Bool -> ConnId -> AM ()
deleteConnectionAsync' c waitDelivery connId = deleteConnectionsAsync' c waitDelivery [connId]
{-# INLINE deleteConnectionAsync' #-}
deleteConnectionsAsync' :: AgentClient -> Bool -> [ConnId] -> AM ()
deleteConnectionsAsync' = deleteConnectionsAsync_ $ pure ()
{-# INLINE deleteConnectionsAsync' #-}
deleteConnectionsAsync_ :: AM () -> AgentClient -> Bool -> [ConnId] -> AM ()
deleteConnectionsAsync_ onSuccess c waitDelivery connIds = case connIds of
[] -> onSuccess
_ -> do
(_, rqs, connIds') <- prepareDeleteConnections_ getConns c waitDelivery connIds
withStore' c $ \db -> forM_ connIds' $ setConnDeleted db waitDelivery
void . lift . forkIO $
withLock' (deleteLock c) "deleteConnectionsAsync" $
deleteConnQueues c waitDelivery True rqs >> void (runExceptT onSuccess)
-- | Add connection to the new receive queue
switchConnectionAsync' :: AgentClient -> ACorrId -> ConnId -> AM ConnectionStats
switchConnectionAsync' c corrId connId =
withConnLock c connId "switchConnectionAsync" $
withStore c (`getConn` connId) >>= \case
SomeConn _ (DuplexConnection cData rqs@(rq :| _rqs) sqs)
| isJust (switchingRQ rqs) -> throwE $ CMD PROHIBITED "switchConnectionAsync: already switching"
| otherwise -> do
when (ratchetSyncSendProhibited cData) $ throwE $ CMD PROHIBITED "switchConnectionAsync: send prohibited"
rq1 <- withStore' c $ \db -> setRcvSwitchStatus db rq $ Just RSSwitchStarted
enqueueCommand c corrId connId Nothing $ AClientCommand SWCH
let rqs' = updatedQs rq1 rqs
pure . connectionStats $ DuplexConnection cData rqs' sqs
_ -> throwE $ CMD PROHIBITED "switchConnectionAsync: not duplex"
newConn :: AgentClient -> UserId -> Bool -> SConnectionMode c -> Maybe CRClientData -> CR.InitialKeys -> SubscriptionMode -> AM (ConnId, ConnectionRequestUri c)
newConn c userId enableNtfs cMode clientData pqInitKeys subMode = do
srv <- getSMPServer c userId
connId <- newConnNoQueues c userId enableNtfs cMode (CR.connPQEncryption pqInitKeys)
cReq <- newRcvConnSrv c userId connId enableNtfs cMode clientData pqInitKeys subMode srv
pure (connId, cReq)
changeConnectionUser' :: AgentClient -> UserId -> ConnId -> UserId -> AM ()
changeConnectionUser' c oldUserId connId newUserId = do
SomeConn _ conn <- withStore c (`getConn` connId)
case conn of
NewConnection {} -> updateConn
RcvConnection {} -> updateConn
_ -> throwE $ CMD PROHIBITED "changeConnectionUser: established connection"
where
updateConn = withStore' c $ \db -> setConnUserId db oldUserId connId newUserId
newRcvConnSrv :: AgentClient -> UserId -> ConnId -> Bool -> SConnectionMode c -> Maybe CRClientData -> CR.InitialKeys -> SubscriptionMode -> SMPServerWithAuth -> AM (ConnectionRequestUri c)
newRcvConnSrv c userId connId enableNtfs cMode clientData pqInitKeys subMode srvWithAuth@(ProtoServerWithAuth srv _) = do
case (cMode, pqInitKeys) of
(SCMContact, CR.IKUsePQ) -> throwE $ CMD PROHIBITED "newRcvConnSrv"
_ -> pure ()
AgentConfig {smpClientVRange, smpAgentVRange, e2eEncryptVRange} <- asks config
let sndSecure = case cMode of SCMInvitation -> True; SCMContact -> False
(rq, qUri, tSess, sessId) <- newRcvQueue c userId connId srvWithAuth smpClientVRange subMode sndSecure `catchAgentError` \e -> liftIO (print e) >> throwE e
atomically $ incSMPServerStat c userId srv connCreated
rq' <- withStore c $ \db -> updateNewConnRcv db connId rq
lift . when (subMode == SMSubscribe) $ addNewQueueSubscription c rq' tSess sessId
when enableNtfs $ do
ns <- asks ntfSupervisor
atomically $ sendNtfSubCommand ns (NSCCreate, [connId])
let crData = ConnReqUriData SSSimplex smpAgentVRange [qUri] clientData
case cMode of
SCMContact -> pure $ CRContactUri crData
SCMInvitation -> do
g <- asks random
(pk1, pk2, pKem, e2eRcvParams) <- liftIO $ CR.generateRcvE2EParams g (maxVersion e2eEncryptVRange) (CR.initialPQEncryption pqInitKeys)
withStore' c $ \db -> createRatchetX3dhKeys db connId pk1 pk2 pKem
pure $ CRInvitationUri crData $ toVersionRangeT e2eRcvParams e2eEncryptVRange
newConnToJoin :: forall c. AgentClient -> UserId -> ConnId -> Bool -> ConnectionRequestUri c -> PQSupport -> AM ConnId
newConnToJoin c userId connId enableNtfs cReq pqSup = case cReq of
CRInvitationUri {} ->
lift (compatibleInvitationUri cReq) >>= \case
Just (_, Compatible (CR.E2ERatchetParams v _ _ _), aVersion) -> create aVersion (Just v)
Nothing -> throwE $ AGENT A_VERSION
CRContactUri {} ->
lift (compatibleContactUri cReq) >>= \case
Just (_, aVersion) -> create aVersion Nothing
Nothing -> throwE $ AGENT A_VERSION
where
create :: Compatible VersionSMPA -> Maybe CR.VersionE2E -> AM ConnId
create (Compatible connAgentVersion) e2eV_ = do
g <- asks random
let pqSupport = pqSup `CR.pqSupportAnd` versionPQSupport_ connAgentVersion e2eV_
cData = ConnData {userId, connId, connAgentVersion, enableNtfs, lastExternalSndId = 0, deleted = False, ratchetSyncState = RSOk, pqSupport}
withStore c $ \db -> createNewConn db g cData SCMInvitation
newConnToAccept :: AgentClient -> ConnId -> Bool -> ConfirmationId -> PQSupport -> AM ConnId
newConnToAccept c connId enableNtfs invId pqSup = do
Invitation {connReq, contactConnId} <- withStore c $ \db -> getInvitation db "newConnToAccept" invId
withStore c (`getConn` contactConnId) >>= \case
SomeConn _ (ContactConnection ConnData {userId} _) ->
newConnToJoin c userId connId enableNtfs connReq pqSup
_ -> throwE $ CMD PROHIBITED "newConnToAccept"
joinConn :: AgentClient -> UserId -> ConnId -> Bool -> ConnectionRequestUri c -> ConnInfo -> PQSupport -> SubscriptionMode -> AM SndQueueSecured
joinConn c userId connId enableNtfs cReq cInfo pqSupport subMode = do
srv <- getNextSMPServer c userId [qServer cReqQueue]
joinConnSrv c userId connId enableNtfs cReq cInfo pqSupport subMode srv
where
cReqQueue :: SMPQueueUri
cReqQueue = case cReq of
CRInvitationUri ConnReqUriData {crSmpQueues = q :| _} _ -> q
CRContactUri ConnReqUriData {crSmpQueues = q :| _} -> q
startJoinInvitation :: AgentClient -> UserId -> ConnId -> Maybe SndQueue -> Bool -> ConnectionRequestUri 'CMInvitation -> PQSupport -> AM (ConnData, SndQueue, CR.SndE2ERatchetParams 'C.X448)
startJoinInvitation c userId connId sq_ enableNtfs cReqUri pqSup =
lift (compatibleInvitationUri cReqUri) >>= \case
Just (qInfo, Compatible e2eRcvParams@(CR.E2ERatchetParams v _ rcDHRr kem_), Compatible connAgentVersion) -> do
g <- asks random
let pqSupport = pqSup `CR.pqSupportAnd` versionPQSupport_ connAgentVersion (Just v)
(pk1, pk2, pKem, e2eSndParams) <- liftIO $ CR.generateSndE2EParams g v (CR.replyKEM_ v kem_ pqSupport)
(_, rcDHRs) <- atomically $ C.generateKeyPair g
rcParams <- liftEitherWith cryptoError $ CR.pqX3dhSnd pk1 pk2 pKem e2eRcvParams
maxSupported <- asks $ maxVersion . e2eEncryptVRange . config
let rcVs = CR.RatchetVersions {current = v, maxSupported}
rc = CR.initSndRatchet rcVs rcDHRr rcDHRs rcParams
-- this case avoids re-generating queue keys and subsequent failure of SKEY that timed out
-- e2ePubKey is always present, it's Maybe historically
q <- case sq_ of
Just sq@SndQueue {e2ePubKey = Just _k} -> pure (sq :: SndQueue) {dbQueueId = DBNewQueue}
_ -> lift $ fst <$> newSndQueue userId "" qInfo
let cData = ConnData {userId, connId, connAgentVersion, enableNtfs, lastExternalSndId = 0, deleted = False, ratchetSyncState = RSOk, pqSupport}
sq' <- withStore c $ \db -> runExceptT $ do
liftIO $ createRatchet db connId rc
maybe (ExceptT $ updateNewConnSnd db connId q) pure sq_
pure (cData, sq', e2eSndParams)
Nothing -> throwE $ AGENT A_VERSION
connRequestPQSupport :: AgentClient -> PQSupport -> ConnectionRequestUri c -> IO (Maybe (VersionSMPA, PQSupport))
connRequestPQSupport c pqSup cReq = withAgentEnv' c $ case cReq of
CRInvitationUri {} -> invPQSupported <$$> compatibleInvitationUri cReq
where
invPQSupported (_, Compatible (CR.E2ERatchetParams e2eV _ _ _), Compatible agentV) = (agentV, pqSup `CR.pqSupportAnd` versionPQSupport_ agentV (Just e2eV))
CRContactUri {} -> ctPQSupported <$$> compatibleContactUri cReq
where
ctPQSupported (_, Compatible agentV) = (agentV, pqSup `CR.pqSupportAnd` versionPQSupport_ agentV Nothing)
compatibleInvitationUri :: ConnectionRequestUri 'CMInvitation -> AM' (Maybe (Compatible SMPQueueInfo, Compatible (CR.RcvE2ERatchetParams 'C.X448), Compatible VersionSMPA))
compatibleInvitationUri (CRInvitationUri ConnReqUriData {crAgentVRange, crSmpQueues = (qUri :| _)} e2eRcvParamsUri) = do
AgentConfig {smpClientVRange, smpAgentVRange, e2eEncryptVRange} <- asks config
pure $
(,,)
<$> (qUri `compatibleVersion` smpClientVRange)
<*> (e2eRcvParamsUri `compatibleVersion` e2eEncryptVRange)
<*> (crAgentVRange `compatibleVersion` smpAgentVRange)
compatibleContactUri :: ConnectionRequestUri 'CMContact -> AM' (Maybe (Compatible SMPQueueInfo, Compatible VersionSMPA))
compatibleContactUri (CRContactUri ConnReqUriData {crAgentVRange, crSmpQueues = (qUri :| _)}) = do
AgentConfig {smpClientVRange, smpAgentVRange} <- asks config
pure $
(,)
<$> (qUri `compatibleVersion` smpClientVRange)
<*> (crAgentVRange `compatibleVersion` smpAgentVRange)
versionPQSupport_ :: VersionSMPA -> Maybe CR.VersionE2E -> PQSupport
versionPQSupport_ agentV e2eV_ = PQSupport $ agentV >= pqdrSMPAgentVersion && maybe True (>= CR.pqRatchetE2EEncryptVersion) e2eV_
{-# INLINE versionPQSupport_ #-}
joinConnSrv :: AgentClient -> UserId -> ConnId -> Bool -> ConnectionRequestUri c -> ConnInfo -> PQSupport -> SubscriptionMode -> SMPServerWithAuth -> AM SndQueueSecured
joinConnSrv c userId connId enableNtfs inv@CRInvitationUri {} cInfo pqSup subMode srv =
withInvLock c (strEncode inv) "joinConnSrv" $ do
SomeConn cType conn <- withStore c (`getConn` connId)
case conn of
NewConnection _ -> doJoin Nothing
SndConnection _ sq -> doJoin $ Just sq
_ -> throwE $ CMD PROHIBITED $ "joinConnSrv: bad connection " <> show cType
where
doJoin :: Maybe SndQueue -> AM SndQueueSecured
doJoin sq_ = do
(cData, sq, e2eSndParams) <- startJoinInvitation c userId connId sq_ enableNtfs inv pqSup
secureConfirmQueue c cData sq srv cInfo (Just e2eSndParams) subMode
joinConnSrv c userId connId enableNtfs cReqUri@CRContactUri {} cInfo pqSup subMode srv =
lift (compatibleContactUri cReqUri) >>= \case
Just (qInfo, vrsn) -> do
cReq <- newRcvConnSrv c userId connId enableNtfs SCMInvitation Nothing (CR.IKNoPQ pqSup) subMode srv
void $ sendInvitation c userId connId qInfo vrsn cReq cInfo
pure False
Nothing -> throwE $ AGENT A_VERSION
joinConnSrvAsync :: AgentClient -> UserId -> ConnId -> Bool -> ConnectionRequestUri c -> ConnInfo -> PQSupport -> SubscriptionMode -> SMPServerWithAuth -> AM SndQueueSecured
joinConnSrvAsync c userId connId enableNtfs inv@CRInvitationUri {} cInfo pqSupport subMode srv = do
SomeConn cType conn <- withStore c (`getConn` connId)
case conn of
NewConnection _ -> doJoin Nothing
SndConnection _ sq -> doJoin $ Just sq
_ -> throwE $ CMD PROHIBITED $ "joinConnSrvAsync: bad connection " <> show cType
where
doJoin :: Maybe SndQueue -> AM SndQueueSecured
doJoin sq_ = do
(cData, sq, e2eSndParams) <- startJoinInvitation c userId connId sq_ enableNtfs inv pqSupport
secureConfirmQueueAsync c cData sq srv cInfo (Just e2eSndParams) subMode
joinConnSrvAsync _c _userId _connId _enableNtfs (CRContactUri _) _cInfo _subMode _pqSupport _srv = do
throwE $ CMD PROHIBITED "joinConnSrvAsync"
createReplyQueue :: AgentClient -> ConnData -> SndQueue -> SubscriptionMode -> SMPServerWithAuth -> AM SMPQueueInfo
createReplyQueue c ConnData {userId, connId, enableNtfs} SndQueue {smpClientVersion} subMode srv = do
let sndSecure = smpClientVersion >= sndAuthKeySMPClientVersion
(rq, qUri, tSess, sessId) <- newRcvQueue c userId connId srv (versionToRange smpClientVersion) subMode sndSecure
atomically $ incSMPServerStat c userId (qServer rq) connCreated
let qInfo = toVersionT qUri smpClientVersion
rq' <- withStore c $ \db -> upgradeSndConnToDuplex db connId rq
lift . when (subMode == SMSubscribe) $ addNewQueueSubscription c rq' tSess sessId
when enableNtfs $ do
ns <- asks ntfSupervisor
atomically $ sendNtfSubCommand ns (NSCCreate, [connId])
pure qInfo
-- | Approve confirmation (LET command) in Reader monad
allowConnection' :: AgentClient -> ConnId -> ConfirmationId -> ConnInfo -> AM ()
allowConnection' c connId confId ownConnInfo = withConnLock c connId "allowConnection" $ do
withStore c (`getConn` connId) >>= \case
SomeConn _ (RcvConnection _ RcvQueue {server, rcvId}) -> do
AcceptedConfirmation {senderConf = SMPConfirmation {senderKey}} <-
withStore c $ \db -> acceptConfirmation db confId ownConnInfo
enqueueCommand c "" connId (Just server) . AInternalCommand $ ICAllowSecure rcvId senderKey
_ -> throwE $ CMD PROHIBITED "allowConnection"
-- | Accept contact (ACPT command) in Reader monad
acceptContact' :: AgentClient -> ConnId -> Bool -> InvitationId -> ConnInfo -> PQSupport -> SubscriptionMode -> AM SndQueueSecured
acceptContact' c connId enableNtfs invId ownConnInfo pqSupport subMode = withConnLock c connId "acceptContact" $ do
Invitation {contactConnId, connReq} <- withStore c $ \db -> getInvitation db "acceptContact'" invId
withStore c (`getConn` contactConnId) >>= \case
SomeConn _ (ContactConnection ConnData {userId} _) -> do
sqSecured <- joinConn c userId connId enableNtfs connReq ownConnInfo pqSupport subMode
withStore' c $ \db -> acceptInvitation db invId ownConnInfo
pure sqSecured
_ -> throwE $ CMD PROHIBITED "acceptContact"
-- | Reject contact (RJCT command) in Reader monad
rejectContact' :: AgentClient -> ConnId -> InvitationId -> AM ()
rejectContact' c contactConnId invId =
withStore c $ \db -> deleteInvitation db contactConnId invId
{-# INLINE rejectContact' #-}
-- | Subscribe to receive connection messages (SUB command) in Reader monad
subscribeConnection' :: AgentClient -> ConnId -> AM ()
subscribeConnection' c connId = toConnResult connId =<< subscribeConnections' c [connId]
{-# INLINE subscribeConnection' #-}
toConnResult :: ConnId -> Map ConnId (Either AgentErrorType ()) -> AM ()
toConnResult connId rs = case M.lookup connId rs of
Just (Right ()) -> when (M.size rs > 1) $ logError $ T.pack $ "too many results " <> show (M.size rs)
Just (Left e) -> throwE e
_ -> throwE $ INTERNAL $ "no result for connection " <> B.unpack connId
type QCmdResult = (QueueStatus, Either AgentErrorType ())
subscribeConnections' :: AgentClient -> [ConnId] -> AM (Map ConnId (Either AgentErrorType ()))
subscribeConnections' _ [] = pure M.empty
subscribeConnections' c connIds = do
conns :: Map ConnId (Either StoreError SomeConn) <- M.fromList . zip connIds <$> withStore' c (`getConns` connIds)
let (errs, cs) = M.mapEither id conns
errs' = M.map (Left . storeError) errs
(subRs, rcvQs) = M.mapEither rcvQueueOrResult cs
resumeDelivery cs
lift $ resumeConnCmds c $ M.keys cs
rcvRs <- lift $ connResults . fst <$> subscribeQueues c (concat $ M.elems rcvQs)
ns <- asks ntfSupervisor
tkn <- readTVarIO (ntfTkn ns)
lift $ when (instantNotifications tkn) . void . forkIO . void $ sendNtfCreate ns rcvRs cs
let rs = M.unions ([errs', subRs, rcvRs] :: [Map ConnId (Either AgentErrorType ())])
notifyResultError rs
pure rs
where
rcvQueueOrResult :: SomeConn -> Either (Either AgentErrorType ()) [RcvQueue]
rcvQueueOrResult (SomeConn _ conn) = case conn of
DuplexConnection _ rqs _ -> Right $ L.toList rqs
SndConnection _ sq -> Left $ sndSubResult sq
RcvConnection _ rq -> Right [rq]