aboutsummaryrefslogtreecommitdiffstats
path: root/src/main/java/de/pixart/messenger/entities/Conversation.java
blob: 833b1eb3bbaa60375c768cbf2576e42363382a94 (plain)
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
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
package de.pixart.messenger.entities;

import android.content.ContentValues;
import android.database.Cursor;
import android.support.annotation.NonNull;

import net.java.otr4j.OtrException;
import net.java.otr4j.crypto.OtrCryptoException;
import net.java.otr4j.session.SessionID;
import net.java.otr4j.session.SessionImpl;
import net.java.otr4j.session.SessionStatus;

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import java.security.interfaces.DSAPublicKey;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.Iterator;
import java.util.List;
import java.util.ListIterator;
import java.util.Locale;
import java.util.concurrent.atomic.AtomicBoolean;

import de.pixart.messenger.Config;
import de.pixart.messenger.crypto.PgpDecryptionService;
import de.pixart.messenger.crypto.axolotl.AxolotlService;
import de.pixart.messenger.services.XmppConnectionService;
import de.pixart.messenger.xmpp.chatstate.ChatState;
import de.pixart.messenger.xmpp.jid.InvalidJidException;
import de.pixart.messenger.xmpp.jid.Jid;
import de.pixart.messenger.xmpp.mam.MamReference;


public class Conversation extends AbstractEntity implements Blockable, Comparable<Conversation> {
    public static final String TABLENAME = "conversations";

    public static final int STATUS_AVAILABLE = 0;
    public static final int STATUS_ARCHIVED = 1;

    public static final int MODE_MULTI = 1;
    public static final int MODE_SINGLE = 0;

    public static final String NAME = "name";
    public static final String ACCOUNT = "accountUuid";
    public static final String CONTACT = "contactUuid";
    public static final String CONTACTJID = "contactJid";
    public static final String STATUS = "status";
    public static final String CREATED = "created";
    public static final String MODE = "mode";
    public static final String ATTRIBUTES = "attributes";

    private static final String ATTRIBUTE_NEXT_ENCRYPTION = "next_encryption";
    static final String ATTRIBUTE_MUC_PASSWORD = "muc_password";
    public static final String ATTRIBUTE_MUTED_TILL = "muted_till";
    public static final String ATTRIBUTE_ALWAYS_NOTIFY = "always_notify";
    private static final String ATTRIBUTE_CRYPTO_TARGETS = "crypto_targets";
    public static final String ATTRIBUTE_LAST_CLEAR_HISTORY = "last_clear_history";
    public static final String ATTRIBUTE_NEXT_MESSAGE = "next_message";

    private String draftMessage;
    private String name;
    private String contactUuid;
    private String accountUuid;
    private Jid contactJid;
    private int status;
    private long created;
    private int mode;

    private JSONObject attributes = new JSONObject();

    private Jid nextCounterpart;

    protected final ArrayList<Message> messages = new ArrayList<>();
    protected Account account = null;

    private transient SessionImpl otrSession;

    private transient String otrFingerprint = null;
    private Smp mSmp = new Smp();

    private transient MucOptions mucOptions = null;

    private byte[] symmetricKey;

    private Bookmark bookmark;

    private boolean messagesLeftOnServer = true;
    private ChatState mOutgoingChatState = Config.DEFAULT_CHATSTATE;
    private ChatState mIncomingChatState = Config.DEFAULT_CHATSTATE;
    private String mLastReceivedOtrMessageId = null;
    private String mFirstMamReference = null;
    private Message correctingMessage;
    public AtomicBoolean messagesLoaded = new AtomicBoolean(true);

    XmppConnectionService mXmppConnectionService;

    public boolean hasMessagesLeftOnServer() {
        return messagesLeftOnServer;
    }

    public void setHasMessagesLeftOnServer(boolean value) {
        this.messagesLeftOnServer = value;
    }


    public Message getFirstUnreadMessage() {
        Message first = null;
        synchronized (this.messages) {
            for (int i = messages.size() - 1; i >= 0; --i) {
                if (messages.get(i).isRead()) {
                    return first;
                } else {
                    first = messages.get(i);
                }
            }
        }
        return first;
    }

    public Message findUnsentMessageWithUuid(String uuid) {
        synchronized (this.messages) {
            for (final Message message : this.messages) {
                final int s = message.getStatus();
                if ((s == Message.STATUS_UNSEND || s == Message.STATUS_WAITING) && message.getUuid().equals(uuid)) {
                    return message;
                }
            }
        }
        return null;
    }

    public void findWaitingMessages(OnMessageFound onMessageFound) {
        synchronized (this.messages) {
            for (Message message : this.messages) {
                if (message.getStatus() == Message.STATUS_WAITING) {
                    onMessageFound.onMessageFound(message);
                }
            }
        }
    }

    public void findUnreadMessages(OnMessageFound onMessageFound) {
        synchronized (this.messages) {
            for (Message message : this.messages) {
                if (!message.isRead()) {
                    onMessageFound.onMessageFound(message);
                }
            }
        }
    }

    public void findMessagesWithFiles(final OnMessageFound onMessageFound) {
        synchronized (this.messages) {
            for (final Message message : this.messages) {
                if ((message.getType() == Message.TYPE_IMAGE || message.getType() == Message.TYPE_FILE)
                        && message.getEncryption() != Message.ENCRYPTION_PGP) {
                    onMessageFound.onMessageFound(message);
                }
            }
        }
    }

    public void findFailedMessagesWithFiles(final OnMessageFound onMessageFound) {
        synchronized (this.messages) {
            for (final Message message : this.messages) {
                if ((message.getType() == Message.TYPE_IMAGE || message.getType() == Message.TYPE_FILE)
                        && message.getEncryption() != Message.ENCRYPTION_PGP) {
                    if (message.getStatus() == Message.STATUS_SEND_FAILED && !message.isDeleted() && message.needsUploading()) {
                        onMessageFound.onMessageFound(message);
                    }
                }
            }
        }
    }

    public Message findMessageWithFileAndUuid(final String uuid) {
        synchronized (this.messages) {
            for (final Message message : this.messages) {
                if (message.getUuid().equals(uuid)
                        && message.getEncryption() != Message.ENCRYPTION_PGP
                        && (message.getType() == Message.TYPE_IMAGE || message.getType() == Message.TYPE_FILE || message.treatAsDownloadable())) {
                    return message;
                }
            }
        }
        return null;
    }

    public void clearMessages() {
        synchronized (this.messages) {
            this.messages.clear();
        }
    }

    public boolean setIncomingChatState(ChatState state) {
        if (this.mIncomingChatState == state) {
            return false;
        }
        this.mIncomingChatState = state;
        return true;
    }

    public ChatState getIncomingChatState() {
        return this.mIncomingChatState;
    }

    public boolean setOutgoingChatState(ChatState state) {
        if (mode == MODE_MULTI && (getNextCounterpart() != null || !isPnNA())) {
            return false;
        }
        if (this.mOutgoingChatState != state) {
            this.mOutgoingChatState = state;
            return true;
        } else {
            return false;
        }
    }

    public ChatState getOutgoingChatState() {
        return this.mOutgoingChatState;
    }

    public void trim() {
        synchronized (this.messages) {
            final int size = messages.size();
            final int maxsize = Config.PAGE_SIZE * Config.MAX_NUM_PAGES;
            if (size > maxsize) {
                List<Message> discards = this.messages.subList(0, size - maxsize);
                final PgpDecryptionService pgpDecryptionService = account.getPgpDecryptionService();
                if (pgpDecryptionService != null) {
                    pgpDecryptionService.discard(discards);
                }
                discards.clear();
                untieMessages();
            }
        }
    }

    public void findUnsentMessagesWithEncryption(int encryptionType, OnMessageFound onMessageFound) {
        synchronized (this.messages) {
            for (Message message : this.messages) {
                if ((message.getStatus() == Message.STATUS_UNSEND || message.getStatus() == Message.STATUS_WAITING)
                        && (message.getEncryption() == encryptionType)) {
                    onMessageFound.onMessageFound(message);
                }
            }
        }
    }

    public void findUnsentTextMessages(OnMessageFound onMessageFound) {
        synchronized (this.messages) {
            for (Message message : this.messages) {
                if (message.getType() != Message.TYPE_IMAGE
                        && message.getStatus() == Message.STATUS_UNSEND) {
                    onMessageFound.onMessageFound(message);
                }
            }
        }
    }

    public Message findSentMessageWithUuidOrRemoteId(String id) {
        synchronized (this.messages) {
            for (Message message : this.messages) {
                if (id.equals(message.getUuid())
                        || (message.getStatus() >= Message.STATUS_SEND
                        && id.equals(message.getRemoteMsgId()))) {
                    return message;
                }
            }
        }
        return null;
    }

    public Message findMessageWithRemoteIdAndCounterpart(String id, Jid counterpart, boolean received, boolean carbon) {
        synchronized (this.messages) {
            for (int i = this.messages.size() - 1; i >= 0; --i) {
                Message message = messages.get(i);
                if (counterpart.equals(message.getCounterpart())
                        && ((message.getStatus() == Message.STATUS_RECEIVED) == received)
                        && (carbon == message.isCarbon() || received)) {
                    if (id.equals(message.getRemoteMsgId()) && !message.isFileOrImage() && !message.treatAsDownloadable()) {
                        return message;
                    } else {
                        return null;
                    }
                }
            }
        }
        return null;
    }

    public Message findSentMessageWithUuid(String id) {
        synchronized (this.messages) {
            for (Message message : this.messages) {
                if (id.equals(message.getUuid())) {
                    return message;
                }
            }
        }
        return null;
    }

    public boolean hasMessageWithCounterpart(Jid counterpart) {
        synchronized (this.messages) {
            for (Message message : this.messages) {
                if (counterpart.equals(message.getCounterpart())) {
                    return true;
                }
            }
        }
        return false;
    }

    public void populateWithMessages(final List<Message> messages) {
        synchronized (this.messages) {
            messages.clear();
            messages.addAll(this.messages);
        }
        for (Iterator<Message> iterator = messages.iterator(); iterator.hasNext(); ) {
            if (iterator.next().wasMergedIntoPrevious()) {
                iterator.remove();
            }
        }
    }

    @Override
    public boolean isBlocked() {
        return getContact().isBlocked();
    }

    @Override
    public boolean isDomainBlocked() {
        return getContact().isDomainBlocked();
    }

    @Override
    public Jid getBlockedJid() {
        return getContact().getBlockedJid();
    }

    public String getLastReceivedOtrMessageId() {
        return this.mLastReceivedOtrMessageId;
    }

    public void setLastReceivedOtrMessageId(String id) {
        this.mLastReceivedOtrMessageId = id;
    }

    public int countMessages() {
        synchronized (this.messages) {
            return this.messages.size();
        }
    }

    public void setFirstMamReference(String reference) {
        this.mFirstMamReference = reference;
    }

    public String getFirstMamReference() {
        return this.mFirstMamReference;
    }

    public void setLastClearHistory(long time, String reference) {
        if (reference != null) {
            setAttribute(ATTRIBUTE_LAST_CLEAR_HISTORY, String.valueOf(time) + ":" + reference);
        } else {
            setAttribute(ATTRIBUTE_LAST_CLEAR_HISTORY, String.valueOf(time));
        }
    }

    public MamReference getLastClearHistory() {
        return MamReference.fromAttribute(getAttribute(ATTRIBUTE_LAST_CLEAR_HISTORY));
    }

    public List<Jid> getAcceptedCryptoTargets() {
        if (mode == MODE_SINGLE) {
            return Collections.singletonList(getJid().toBareJid());
        } else {
            return getJidListAttribute(ATTRIBUTE_CRYPTO_TARGETS);
        }
    }

    public void setAcceptedCryptoTargets(List<Jid> acceptedTargets) {
        setAttribute(ATTRIBUTE_CRYPTO_TARGETS, acceptedTargets);
    }

    public boolean setCorrectingMessage(Message correctingMessage) {
        this.correctingMessage = correctingMessage;
        return correctingMessage == null && draftMessage != null;
    }

    public Message getCorrectingMessage() {
        return this.correctingMessage;
    }

    public boolean withSelf() {
        return getContact().isSelf();
    }

    @Override
    public int compareTo(@NonNull Conversation another) {
        final Message left = getLatestMessage();
        final Message right = another.getLatestMessage();
        if (left.getTimeSent() > right.getTimeSent()) {
            return -1;
        } else if (left.getTimeSent() < right.getTimeSent()) {
            return 1;
        } else {
            return 0;
        }
    }

    public String getDraftMessage() {
        return draftMessage;
    }

    public void setDraftMessage(String draftMessage) {
        this.draftMessage = draftMessage;
    }

    public interface OnMessageFound {
        void onMessageFound(final Message message);
    }

    public Conversation(final String name, final Account account, final Jid contactJid,
                        final int mode) {
        this(java.util.UUID.randomUUID().toString(), name, null, account
                        .getUuid(), contactJid, System.currentTimeMillis(),
                STATUS_AVAILABLE, mode, "");
        this.account = account;
    }

    public Conversation(final String uuid, final String name, final String contactUuid,
                        final String accountUuid, final Jid contactJid, final long created, final int status,
                        final int mode, final String attributes) {
        this.uuid = uuid;
        this.name = name;
        this.contactUuid = contactUuid;
        this.accountUuid = accountUuid;
        this.contactJid = contactJid;
        this.created = created;
        this.status = status;
        this.mode = mode;
        try {
            this.attributes = new JSONObject(attributes == null ? "" : attributes);
        } catch (JSONException e) {
            this.attributes = new JSONObject();
        }
    }

    public boolean isRead() {
        return (this.messages.size() == 0) || this.messages.get(this.messages.size() - 1).isRead();
    }

    public List<Message> markRead() {
        final List<Message> unread = new ArrayList<>();
        synchronized (this.messages) {
            for (Message message : this.messages) {
                if (!message.isRead()) {
                    message.markRead();
                    unread.add(message);
                }
            }
        }
        return unread;
    }

    public Message getLatestMarkableMessage() {
        synchronized (this.messages) {
            for (int i = this.messages.size() - 1; i >= 0; --i) {
                final Message message = this.messages.get(i);
                if (message.getStatus() <= Message.STATUS_RECEIVED && message.markable) {
                    return message.isRead() ? null : message;
                }
            }
        }
        return null;
    }

    public Message getLatestMessage() {
        synchronized (this.messages) {
            if (this.messages.size() == 0) {
                Message message = new Message(this, "", Message.ENCRYPTION_NONE);
                message.setType(Message.TYPE_STATUS);
                message.setTime(Math.max(getCreated(), getLastClearHistory().getTimestamp()));
                return message;
            } else {
                return this.messages.get(this.messages.size() - 1);
            }
        }
    }

    public String getName() {
        if (getMode() == MODE_MULTI) {
            if (getMucOptions().getSubject() != null) {
                return getMucOptions().getSubject();
            } else if (bookmark != null
                    && bookmark.getBookmarkName() != null
                    && !bookmark.getBookmarkName().trim().isEmpty()) {
                return bookmark.getBookmarkName().trim();
            } else {
                String generatedName = getMucOptions().createNameFromParticipants();
                if (generatedName != null) {
                    return generatedName;
                } else {
                    return getJid().getUnescapedLocalpart();
                }
            }
        } else if (isWithStranger()) {
            return contactJid.toBareJid().toString();
        } else {
            return this.getContact().getDisplayName();
        }
    }

    public String getParticipants() {
        if (getMode() == MODE_MULTI) {
            String generatedName = getMucOptions().createNameFromParticipants();
            if (generatedName != null) {
                return generatedName;
            } else {
                return null;
            }
        } else {
            return null;
        }
    }

    public int getNumberOfParticipants() {
        if (getMode() == MODE_MULTI) {
            return getMucOptions().NumberOfUsers();
        } else {
            return 0;
        }
    }

    public String getAccountUuid() {
        return this.accountUuid;
    }

    public Account getAccount() {
        return this.account;
    }

    public Contact getContact() {
        return this.account.getRoster().getContact(this.contactJid);
    }

    public void setAccount(final Account account) {
        this.account = account;
    }

    @Override
    public Jid getJid() {
        return this.contactJid;
    }

    public int getStatus() {
        return this.status;
    }

    public long getCreated() {
        return this.created;
    }

    public ContentValues getContentValues() {
        ContentValues values = new ContentValues();
        values.put(UUID, uuid);
        values.put(NAME, name);
        values.put(CONTACT, contactUuid);
        values.put(ACCOUNT, accountUuid);
        values.put(CONTACTJID, contactJid.toPreppedString());
        values.put(CREATED, created);
        values.put(STATUS, status);
        values.put(MODE, mode);
        values.put(ATTRIBUTES, attributes.toString());
        return values;
    }

    public static Conversation fromCursor(Cursor cursor) {
        Jid jid;
        try {
            jid = Jid.fromString(cursor.getString(cursor.getColumnIndex(CONTACTJID)), true);
        } catch (final InvalidJidException e) {
            // Borked DB..
            jid = null;
        }
        return new Conversation(cursor.getString(cursor.getColumnIndex(UUID)),
                cursor.getString(cursor.getColumnIndex(NAME)),
                cursor.getString(cursor.getColumnIndex(CONTACT)),
                cursor.getString(cursor.getColumnIndex(ACCOUNT)),
                jid,
                cursor.getLong(cursor.getColumnIndex(CREATED)),
                cursor.getInt(cursor.getColumnIndex(STATUS)),
                cursor.getInt(cursor.getColumnIndex(MODE)),
                cursor.getString(cursor.getColumnIndex(ATTRIBUTES)));
    }

    public void setStatus(int status) {
        this.status = status;
    }

    public int getMode() {
        return this.mode;
    }

    public void setMode(int mode) {
        this.mode = mode;
    }

    public SessionImpl startOtrSession(String presence, boolean sendStart) {
        if (this.otrSession != null) {
            return this.otrSession;
        } else {
            final SessionID sessionId = new SessionID(this.getJid().toBareJid().toString(),
                    presence,
                    "xmpp");
            this.otrSession = new SessionImpl(sessionId, getAccount().getOtrService());
            try {
                if (sendStart) {
                    this.otrSession.startSession();
                    return this.otrSession;
                }
                return this.otrSession;
            } catch (OtrException e) {
                return null;
            }
        }

    }

    public SessionImpl getOtrSession() {
        return this.otrSession;
    }

    public void resetOtrSession() {
        this.otrFingerprint = null;
        this.otrSession = null;
        this.mSmp.hint = null;
        this.mSmp.secret = null;
        this.mSmp.status = Smp.STATUS_NONE;
    }

    public Smp smp() {
        return mSmp;
    }

    public boolean startOtrIfNeeded() {
        if (this.otrSession != null && this.otrSession.getSessionStatus() != SessionStatus.ENCRYPTED) {
            try {
                this.otrSession.startSession();
                return true;
            } catch (OtrException e) {
                this.resetOtrSession();
                return false;
            }
        } else {
            return true;
        }
    }

    public boolean endOtrIfNeeded() {
        if (this.otrSession != null) {
            if (this.otrSession.getSessionStatus() == SessionStatus.ENCRYPTED) {
                try {
                    this.otrSession.endSession();
                    this.resetOtrSession();
                    return true;
                } catch (OtrException e) {
                    this.resetOtrSession();
                    return false;
                }
            } else {
                this.resetOtrSession();
                return false;
            }
        } else {
            return false;
        }
    }

    public boolean hasValidOtrSession() {
        return this.otrSession != null;
    }

    public synchronized String getOtrFingerprint() {
        if (this.otrFingerprint == null) {
            try {
                if (getOtrSession() == null || getOtrSession().getSessionStatus() != SessionStatus.ENCRYPTED) {
                    return null;
                }
                DSAPublicKey remotePubKey = (DSAPublicKey) getOtrSession().getRemotePublicKey();
                this.otrFingerprint = getAccount().getOtrService().getFingerprint(remotePubKey).toLowerCase(Locale.US);
            } catch (final OtrCryptoException | UnsupportedOperationException ignored) {
                return null;
            }
        }
        return this.otrFingerprint;
    }

    public boolean verifyOtrFingerprint() {
        final String fingerprint = getOtrFingerprint();
        if (fingerprint != null) {
            getContact().addOtrFingerprint(fingerprint);
            return true;
        } else {
            return false;
        }
    }

    public boolean isOtrFingerprintVerified() {
        return getContact().getOtrFingerprints().contains(getOtrFingerprint());
    }

    /**
     * short for is Private and Non-anonymous
     */
    private boolean isPnNA() {
        return mode == MODE_SINGLE || (getMucOptions().membersOnly() && getMucOptions().nonanonymous());
    }

    public synchronized MucOptions getMucOptions() {
        if (this.mucOptions == null) {
            this.mucOptions = new MucOptions(this);
        }
        return this.mucOptions;
    }

    public void resetMucOptions() {
        this.mucOptions = null;
    }

    public void setContactJid(final Jid jid) {
        this.contactJid = jid;
    }

    public void setNextCounterpart(Jid jid) {
        this.nextCounterpart = jid;
    }

    public Jid getNextCounterpart() {
        return this.nextCounterpart;
    }

    public int getNextEncryption() {
        return fixAvailableEncryption(this.getIntAttribute(ATTRIBUTE_NEXT_ENCRYPTION, getDefaultEncryption()));
    }

    private int fixAvailableEncryption(int selectedEncryption) {
        switch (selectedEncryption) {
            case Message.ENCRYPTION_NONE:
                return Config.supportUnencrypted() ? selectedEncryption : getDefaultEncryption();
            case Message.ENCRYPTION_AXOLOTL:
                return Config.supportOmemo() ? selectedEncryption : getDefaultEncryption();
            case Message.ENCRYPTION_OTR:
                return Config.supportOtr() ? selectedEncryption : getDefaultEncryption();
            case Message.ENCRYPTION_PGP:
            case Message.ENCRYPTION_DECRYPTED:
            case Message.ENCRYPTION_DECRYPTION_FAILED:
                return Config.supportOpenPgp() ? Message.ENCRYPTION_PGP : getDefaultEncryption();
            default:
                return getDefaultEncryption();
        }
    }

    private int getDefaultEncryption() {
        AxolotlService axolotlService = account.getAxolotlService();
        if (Config.supportUnencrypted()) {
            return Message.ENCRYPTION_NONE;
        } else if (Config.supportOmemo()
                && (axolotlService != null && axolotlService.isConversationAxolotlCapable(this) || !Config.multipleEncryptionChoices())) {
            return Message.ENCRYPTION_AXOLOTL;
        } else if (Config.supportOtr() && mode == MODE_SINGLE) {
            return Message.ENCRYPTION_OTR;
        } else if (Config.supportOpenPgp()) {
            return Message.ENCRYPTION_PGP;
        } else {
            return Message.ENCRYPTION_NONE;
        }
    }

    public void setNextEncryption(int encryption) {
        this.setAttribute(ATTRIBUTE_NEXT_ENCRYPTION, String.valueOf(encryption));
    }

    public String getNextMessage() {
        final String nextMessage = getAttribute(ATTRIBUTE_NEXT_MESSAGE);
        return nextMessage == null ? "" : nextMessage;
    }

    public boolean smpRequested() {
        return smp().status == Smp.STATUS_CONTACT_REQUESTED;
    }

    public boolean setNextMessage(String message) {
        boolean changed = !getNextMessage().equals(message);
        this.setAttribute(ATTRIBUTE_NEXT_MESSAGE, message);
        return changed;
    }

    public void setSymmetricKey(byte[] key) {
        this.symmetricKey = key;
    }

    public byte[] getSymmetricKey() {
        return this.symmetricKey;
    }

    public void setBookmark(Bookmark bookmark) {
        this.bookmark = bookmark;
        this.bookmark.setConversation(this);
    }

    public void deregisterWithBookmark() {
        if (this.bookmark != null) {
            this.bookmark.setConversation(null);
        }
        this.bookmark = null;
    }

    public Bookmark getBookmark() {
        return this.bookmark;
    }

    public boolean hasDuplicateMessage(Message message) {
        synchronized (this.messages) {
            for (int i = this.messages.size() - 1; i >= 0; --i) {
                if (this.messages.get(i).similar(message)) {
                    return true;
                }
            }
        }
        return false;
    }

    public Message findSentMessageWithBody(String body) {
        synchronized (this.messages) {
            for (int i = this.messages.size() - 1; i >= 0; --i) {
                Message message = this.messages.get(i);
                if (message.getStatus() == Message.STATUS_UNSEND || message.getStatus() == Message.STATUS_SEND) {
                    String otherBody;
                    if (message.hasFileOnRemoteHost()) {
                        otherBody = message.getFileParams().url.toString();
                    } else {
                        otherBody = message.body;
                    }
                    if (otherBody != null && otherBody.equals(body)) {
                        return message;
                    }
                }
            }
            return null;
        }
    }

    public MamReference getLastMessageTransmitted() {
        final MamReference lastClear = getLastClearHistory();
        MamReference lastReceived = new MamReference(0);
        synchronized (this.messages) {
            for (int i = this.messages.size() - 1; i >= 0; --i) {
                Message message = this.messages.get(i);
                if (message.getStatus() == Message.STATUS_RECEIVED || message.isCarbon()) {
                    lastReceived = new MamReference(message.getTimeSent(),message.getServerMsgId());
                    break;
                }
            }
        }
        return MamReference.max(lastClear,lastReceived);
    }

    public void setMutedTill(long value) {
        this.setAttribute(ATTRIBUTE_MUTED_TILL, String.valueOf(value));
    }

    public boolean isMuted() {
        return System.currentTimeMillis() < this.getLongAttribute(ATTRIBUTE_MUTED_TILL, 0);
    }

    public boolean alwaysNotify() {
        return mode == MODE_SINGLE || getBooleanAttribute(ATTRIBUTE_ALWAYS_NOTIFY, Config.ALWAYS_NOTIFY_BY_DEFAULT || isPnNA());
    }

    public boolean setAttribute(String key, String value) {
        synchronized (this.attributes) {
            try {
                this.attributes.put(key, value);
                return true;
            } catch (JSONException e) {
                return false;
            }
        }
    }

    public boolean setAttribute(String key, List<Jid> jids) {
        JSONArray array = new JSONArray();
        for (Jid jid : jids) {
            array.put(jid.toBareJid().toString());
        }
        synchronized (this.attributes) {
            try {
                this.attributes.put(key, array);
                return true;
            } catch (JSONException e) {
                e.printStackTrace();
                return false;
            }
        }
    }

    public String getAttribute(String key) {
        synchronized (this.attributes) {
            try {
                return this.attributes.getString(key);
            } catch (JSONException e) {
                return null;
            }
        }
    }

    private List<Jid> getJidListAttribute(String key) {
        ArrayList<Jid> list = new ArrayList<>();
        synchronized (this.attributes) {
            try {
                JSONArray array = this.attributes.getJSONArray(key);
                for (int i = 0; i < array.length(); ++i) {
                    try {
                        list.add(Jid.fromString(array.getString(i)));
                    } catch (InvalidJidException e) {
                        //ignored
                    }
                }
            } catch (JSONException e) {
                //ignored
            }
        }
        return list;
    }

    private int getIntAttribute(String key, int defaultValue) {
        String value = this.getAttribute(key);
        if (value == null) {
            return defaultValue;
        } else {
            try {
                return Integer.parseInt(value);
            } catch (NumberFormatException e) {
                return defaultValue;
            }
        }
    }

    public long getLongAttribute(String key, long defaultValue) {
        String value = this.getAttribute(key);
        if (value == null) {
            return defaultValue;
        } else {
            try {
                return Long.parseLong(value);
            } catch (NumberFormatException e) {
                return defaultValue;
            }
        }
    }

    private boolean getBooleanAttribute(String key, boolean defaultValue) {
        String value = this.getAttribute(key);
        if (value == null) {
            return defaultValue;
        } else {
            return Boolean.parseBoolean(value);
        }
    }

    public void add(Message message) {
        synchronized (this.messages) {
            this.messages.add(message);
        }
    }

    public void prepend(Message message) {
        synchronized (this.messages) {
            this.messages.add(0, message);
        }
    }

    public void addAll(int index, List<Message> messages) {
        synchronized (this.messages) {
            this.messages.addAll(index, messages);
        }
        account.getPgpDecryptionService().decrypt(messages);
    }

    public void expireOldMessages(long timestamp) {
        synchronized (this.messages) {
            for (ListIterator<Message> iterator = this.messages.listIterator(); iterator.hasNext(); ) {
                if (iterator.next().getTimeSent() < timestamp) {
                    iterator.remove();
                }
            }
            untieMessages();
        }
    }

    public void sort() {
        synchronized (this.messages) {
            Collections.sort(this.messages, new Comparator<Message>() {
                @Override
                public int compare(Message left, Message right) {
                    if (left.getTimeSent() < right.getTimeSent()) {
                        return -1;
                    } else if (left.getTimeSent() > right.getTimeSent()) {
                        return 1;
                    } else {
                        return 0;
                    }
                }
            });
            untieMessages();
        }
    }

    private void untieMessages() {
        for (Message message : this.messages) {
            message.untie();
        }
    }

    public int unreadCount() {
        synchronized (this.messages) {
            int count = 0;
            for (int i = this.messages.size() - 1; i >= 0; --i) {
                if (this.messages.get(i).isRead()) {
                    return count;
                }
                ++count;
            }
            return count;
        }
    }

    public int failedCount() {
        synchronized (this.messages) {
            int count = 0;
            for (int i = this.messages.size() - 1; i >= 0; --i) {
                Message message = this.messages.get(i);
                if ((message.getType() == Message.TYPE_IMAGE || message.getType() == Message.TYPE_FILE) && message.getEncryption() != Message.ENCRYPTION_PGP) {
                    if (message.getStatus() == Message.STATUS_SEND_FAILED && !message.isDeleted() && message.needsUploading()){
                        ++count;
                    }
                }
            }
            return count;
        }
    }

    public int receivedMessagesCount() {
        int count = 0;
        synchronized (this.messages) {
            for (Message message : messages) {
                if (message.getStatus() == Message.STATUS_RECEIVED) {
                    ++count;
                }
            }
        }
        return count;
    }

    private int sentMessagesCount() {
        int count = 0;
        synchronized (this.messages) {
            for (Message message : messages) {
                if (message.getStatus() != Message.STATUS_RECEIVED) {
                    ++count;
                }
            }
        }
        return count;
    }

    public boolean isWithStranger() {
        return mode == MODE_SINGLE
                && !getJid().equals(account.getJid().toDomainJid())
                && !getContact().showInRoster()
                && sentMessagesCount() == 0;
    }

    public class Smp {
        public static final int STATUS_NONE = 0;
        public static final int STATUS_CONTACT_REQUESTED = 1;
        public static final int STATUS_WE_REQUESTED = 2;
        public static final int STATUS_FAILED = 3;
        public static final int STATUS_VERIFIED = 4;

        public String secret = null;
        public String hint = null;
        public int status = 0;
    }
}