1package eu.siacs.conversations.entities;
2
3import android.support.annotation.NonNull;
4import android.support.annotation.Nullable;
5import android.text.TextUtils;
6
7import java.util.ArrayList;
8import java.util.Collections;
9import java.util.HashSet;
10import java.util.List;
11import java.util.Locale;
12import java.util.Set;
13
14import eu.siacs.conversations.Config;
15import eu.siacs.conversations.R;
16import eu.siacs.conversations.services.MessageArchiveService;
17import eu.siacs.conversations.utils.JidHelper;
18import eu.siacs.conversations.utils.UIHelper;
19import eu.siacs.conversations.xmpp.chatstate.ChatState;
20import eu.siacs.conversations.xmpp.forms.Data;
21import eu.siacs.conversations.xmpp.forms.Field;
22import eu.siacs.conversations.xmpp.pep.Avatar;
23import rocks.xmpp.addr.Jid;
24
25public class MucOptions {
26
27 public static final String STATUS_CODE_SELF_PRESENCE = "110";
28 public static final String STATUS_CODE_ROOM_CREATED = "201";
29 public static final String STATUS_CODE_BANNED = "301";
30 public static final String STATUS_CODE_CHANGED_NICK = "303";
31 public static final String STATUS_CODE_KICKED = "307";
32 public static final String STATUS_CODE_AFFILIATION_CHANGE = "321";
33 public static final String STATUS_CODE_LOST_MEMBERSHIP = "322";
34 public static final String STATUS_CODE_SHUTDOWN = "332";
35 private final Set<User> users = new HashSet<>();
36 private final Conversation conversation;
37 public OnRenameListener onRenameListener = null;
38 private boolean mAutoPushConfiguration = true;
39 private Account account;
40 private ServiceDiscoveryResult serviceDiscoveryResult;
41 private boolean isOnline = false;
42 private Error error = Error.NONE;
43 private User self;
44 private String password = null;
45 public MucOptions(Conversation conversation) {
46 this.account = conversation.getAccount();
47 this.conversation = conversation;
48 this.self = new User(this, createJoinJid(getProposedNick()));
49 this.self.affiliation = Affiliation.of(conversation.getAttribute("affiliation"));
50 this.self.role = Role.of(conversation.getAttribute("role"));
51 }
52
53 public Account getAccount() {
54 return this.conversation.getAccount();
55 }
56
57 public boolean setSelf(User user) {
58 this.self = user;
59 final boolean roleChanged = this.conversation.setAttribute("role", user.role.toString());
60 final boolean affiliationChanged = this.conversation.setAttribute("affiliation", user.affiliation.toString());
61 return roleChanged || affiliationChanged;
62 }
63
64 public void changeAffiliation(Jid jid, Affiliation affiliation) {
65 User user = findUserByRealJid(jid);
66 synchronized (users) {
67 if (user != null && user.getRole() == Role.NONE) {
68 users.remove(user);
69 if (affiliation.ranks(Affiliation.MEMBER)) {
70 user.affiliation = affiliation;
71 users.add(user);
72 }
73 }
74 }
75 }
76
77 public void flagNoAutoPushConfiguration() {
78 mAutoPushConfiguration = false;
79 }
80
81 public boolean autoPushConfiguration() {
82 return mAutoPushConfiguration;
83 }
84
85 public boolean isSelf(Jid counterpart) {
86 return counterpart.equals(self.getFullJid());
87 }
88
89 public void resetChatState() {
90 synchronized (users) {
91 for (User user : users) {
92 user.chatState = Config.DEFAULT_CHATSTATE;
93 }
94 }
95 }
96
97 public boolean mamSupport() {
98 return MessageArchiveService.Version.has(getFeatures());
99 }
100
101 public boolean updateConfiguration(ServiceDiscoveryResult serviceDiscoveryResult) {
102 this.serviceDiscoveryResult = serviceDiscoveryResult;
103 String name;
104 Field roomConfigName = getRoomInfoForm().getFieldByName("muc#roomconfig_roomname");
105 if (roomConfigName != null) {
106 name = roomConfigName.getValue();
107 } else {
108 List<ServiceDiscoveryResult.Identity> identities = serviceDiscoveryResult.getIdentities();
109 String identityName = identities.size() > 0 ? identities.get(0).getName() : null;
110 final Jid jid = conversation.getJid();
111 if (identityName != null && !identityName.equals(jid == null ? null : jid.getEscapedLocal())) {
112 name = identityName;
113 } else {
114 name = null;
115 }
116 }
117 boolean changed = conversation.setAttribute("muc_name", name);
118 changed |= conversation.setAttribute(Conversation.ATTRIBUTE_MEMBERS_ONLY, this.hasFeature("muc_membersonly"));
119 changed |= conversation.setAttribute(Conversation.ATTRIBUTE_MODERATED, this.hasFeature("muc_moderated"));
120 changed |= conversation.setAttribute(Conversation.ATTRIBUTE_NON_ANONYMOUS, this.hasFeature("muc_nonanonymous"));
121 return changed;
122 }
123
124 private Data getRoomInfoForm() {
125 final List<Data> forms = serviceDiscoveryResult == null ? Collections.emptyList() : serviceDiscoveryResult.forms;
126 return forms.size() == 0 ? new Data() : forms.get(0);
127 }
128
129 public String getAvatar() {
130 return account.getRoster().getContact(conversation.getJid()).getAvatarFilename();
131 }
132
133 public boolean hasFeature(String feature) {
134 return this.serviceDiscoveryResult != null && this.serviceDiscoveryResult.features.contains(feature);
135 }
136
137 public boolean hasVCards() {
138 return hasFeature("vcard-temp");
139 }
140
141 public boolean canInvite() {
142 Field field = getRoomInfoForm().getFieldByName("muc#roomconfig_allowinvites");
143 return !membersOnly() || self.getRole().ranks(Role.MODERATOR) || (field != null && "1".equals(field.getValue()));
144 }
145
146 public boolean canChangeSubject() {
147 Field field = getRoomInfoForm().getFieldByName("muc#roominfo_changesubject");
148 return self.getRole().ranks(Role.MODERATOR) || (field != null && "1".equals(field.getValue()));
149 }
150
151 public boolean allowPm() {
152 final Field field = getRoomInfoForm().getFieldByName("muc#roomconfig_allowpm");
153 if (field == null) {
154 return true; //fall back if field does not exists
155 }
156 if ("anyone".equals(field.getValue())) {
157 return true;
158 } else if ("participants".equals(field.getValue())) {
159 return self.getRole().ranks(Role.PARTICIPANT);
160 } else if ("moderators".equals(field.getValue())) {
161 return self.getRole().ranks(Role.MODERATOR);
162 } else {
163 return false;
164 }
165 }
166
167 public boolean participating() {
168 return self.getRole().ranks(Role.PARTICIPANT) || !moderated();
169 }
170
171 public boolean membersOnly() {
172 return conversation.getBooleanAttribute(Conversation.ATTRIBUTE_MEMBERS_ONLY, false);
173 }
174
175 public List<String> getFeatures() {
176 return this.serviceDiscoveryResult != null ? this.serviceDiscoveryResult.features : Collections.emptyList();
177 }
178
179 public boolean nonanonymous() {
180 return conversation.getBooleanAttribute(Conversation.ATTRIBUTE_NON_ANONYMOUS, false);
181 }
182
183 public boolean isPrivateAndNonAnonymous() {
184 return membersOnly() && nonanonymous();
185 }
186
187 public boolean moderated() {
188 return conversation.getBooleanAttribute(Conversation.ATTRIBUTE_MODERATED, false);
189 }
190
191 public User deleteUser(Jid jid) {
192 User user = findUserByFullJid(jid);
193 if (user != null) {
194 synchronized (users) {
195 users.remove(user);
196 boolean realJidInMuc = false;
197 for (User u : users) {
198 if (user.realJid != null && user.realJid.equals(u.realJid)) {
199 realJidInMuc = true;
200 break;
201 }
202 }
203 boolean self = user.realJid != null && user.realJid.equals(account.getJid().asBareJid());
204 if (membersOnly()
205 && nonanonymous()
206 && user.affiliation.ranks(Affiliation.MEMBER)
207 && user.realJid != null
208 && !realJidInMuc
209 && !self) {
210 user.role = Role.NONE;
211 user.avatar = null;
212 user.fullJid = null;
213 users.add(user);
214 }
215 }
216 }
217 return user;
218 }
219
220 //returns true if real jid was new;
221 public boolean updateUser(User user) {
222 User old;
223 boolean realJidFound = false;
224 if (user.fullJid == null && user.realJid != null) {
225 old = findUserByRealJid(user.realJid);
226 realJidFound = old != null;
227 if (old != null) {
228 if (old.fullJid != null) {
229 return false; //don't add. user already exists
230 } else {
231 synchronized (users) {
232 users.remove(old);
233 }
234 }
235 }
236 } else if (user.realJid != null) {
237 old = findUserByRealJid(user.realJid);
238 realJidFound = old != null;
239 synchronized (users) {
240 if (old != null && old.fullJid == null) {
241 users.remove(old);
242 }
243 }
244 }
245 old = findUserByFullJid(user.getFullJid());
246 synchronized (this.users) {
247 if (old != null) {
248 users.remove(old);
249 }
250 boolean fullJidIsSelf = isOnline && user.getFullJid() != null && user.getFullJid().equals(self.getFullJid());
251 if ((!membersOnly() || user.getAffiliation().ranks(Affiliation.MEMBER))
252 && user.getAffiliation().outranks(Affiliation.OUTCAST)
253 && !fullJidIsSelf) {
254 this.users.add(user);
255 return !realJidFound && user.realJid != null;
256 }
257 }
258 return false;
259 }
260
261 public User findUserByFullJid(Jid jid) {
262 if (jid == null) {
263 return null;
264 }
265 synchronized (users) {
266 for (User user : users) {
267 if (jid.equals(user.getFullJid())) {
268 return user;
269 }
270 }
271 }
272 return null;
273 }
274
275 public User findUserByRealJid(Jid jid) {
276 if (jid == null) {
277 return null;
278 }
279 synchronized (users) {
280 for (User user : users) {
281 if (jid.equals(user.realJid)) {
282 return user;
283 }
284 }
285 }
286 return null;
287 }
288
289 public User findOrCreateUserByRealJid(Jid jid, Jid fullJid) {
290 User user = findUserByRealJid(jid);
291 if (user == null) {
292 user = new User(this, fullJid);
293 user.setRealJid(jid);
294 }
295 return user;
296 }
297
298 public User findUser(ReadByMarker readByMarker) {
299 if (readByMarker.getRealJid() != null) {
300 return findOrCreateUserByRealJid(readByMarker.getRealJid().asBareJid(), readByMarker.getFullJid());
301 } else if (readByMarker.getFullJid() != null) {
302 return findUserByFullJid(readByMarker.getFullJid());
303 } else {
304 return null;
305 }
306 }
307
308 public boolean isContactInRoom(Contact contact) {
309 return findUserByRealJid(contact.getJid().asBareJid()) != null;
310 }
311
312 public boolean isUserInRoom(Jid jid) {
313 return findUserByFullJid(jid) != null;
314 }
315
316 public boolean setOnline() {
317 boolean before = this.isOnline;
318 this.isOnline = true;
319 return !before;
320 }
321
322 public ArrayList<User> getUsers() {
323 return getUsers(true);
324 }
325
326 public ArrayList<User> getUsers(boolean includeOffline) {
327 synchronized (users) {
328 ArrayList<User> users = new ArrayList<>();
329 for (User user : this.users) {
330 if (!user.isDomain() && (includeOffline || user.getRole().ranks(Role.PARTICIPANT))) {
331 users.add(user);
332 }
333 }
334 return users;
335 }
336 }
337
338 public ArrayList<User> getUsersWithChatState(ChatState state, int max) {
339 synchronized (users) {
340 ArrayList<User> list = new ArrayList<>();
341 for (User user : users) {
342 if (user.chatState == state) {
343 list.add(user);
344 if (list.size() >= max) {
345 break;
346 }
347 }
348 }
349 return list;
350 }
351 }
352
353 public List<User> getUsers(int max) {
354 ArrayList<User> subset = new ArrayList<>();
355 HashSet<Jid> jids = new HashSet<>();
356 jids.add(account.getJid().asBareJid());
357 synchronized (users) {
358 for (User user : users) {
359 if (user.getRealJid() == null || (user.getRealJid().getLocal() != null && jids.add(user.getRealJid()))) {
360 subset.add(user);
361 }
362 if (subset.size() >= max) {
363 break;
364 }
365 }
366 }
367 return subset;
368 }
369
370 public int getUserCount() {
371 synchronized (users) {
372 return users.size();
373 }
374 }
375
376 private String getProposedNick() {
377 if (conversation.getBookmark() != null
378 && conversation.getBookmark().getNick() != null
379 && !conversation.getBookmark().getNick().trim().isEmpty()) {
380 return conversation.getBookmark().getNick().trim();
381 } else if (!conversation.getJid().isBareJid()) {
382 return conversation.getJid().getResource();
383 } else {
384 final String displayName = account.getDisplayName();
385 if (TextUtils.isEmpty(displayName)) {
386 return JidHelper.localPartOrFallback(account.getJid());
387 } else {
388 return displayName;
389 }
390 }
391 }
392
393 public String getActualNick() {
394 if (this.self.getName() != null) {
395 return this.self.getName();
396 } else {
397 return this.getProposedNick();
398 }
399 }
400
401 public boolean online() {
402 return this.isOnline;
403 }
404
405 public Error getError() {
406 return this.error;
407 }
408
409 public void setError(Error error) {
410 this.isOnline = isOnline && error == Error.NONE;
411 this.error = error;
412 }
413
414 public void setOnRenameListener(OnRenameListener listener) {
415 this.onRenameListener = listener;
416 }
417
418 public void setOffline() {
419 synchronized (users) {
420 this.users.clear();
421 }
422 this.error = Error.NO_RESPONSE;
423 this.isOnline = false;
424 }
425
426 public User getSelf() {
427 return self;
428 }
429
430 public boolean setSubject(String subject) {
431 return this.conversation.setAttribute("subject", subject);
432 }
433
434 public String getSubject() {
435 return this.conversation.getAttribute("subject");
436 }
437
438 public String getName() {
439 return this.conversation.getAttribute("muc_name");
440 }
441
442 private List<User> getFallbackUsersFromCryptoTargets() {
443 List<User> users = new ArrayList<>();
444 for (Jid jid : conversation.getAcceptedCryptoTargets()) {
445 User user = new User(this, null);
446 user.setRealJid(jid);
447 users.add(user);
448 }
449 return users;
450 }
451
452 public List<User> getUsersRelevantForNameAndAvatar() {
453 final List<User> users;
454 if (isOnline) {
455 users = getUsers(5);
456 } else {
457 users = getFallbackUsersFromCryptoTargets();
458 }
459 return users;
460 }
461
462 public String createNameFromParticipants() {
463 List<User> users = getUsersRelevantForNameAndAvatar();
464 if (users.size() >= 2) {
465 StringBuilder builder = new StringBuilder();
466 for (User user : users) {
467 if (builder.length() != 0) {
468 builder.append(", ");
469 }
470 String name = UIHelper.getDisplayName(user);
471 if (name != null) {
472 builder.append(name.split("\\s+")[0]);
473 }
474 }
475 return builder.toString();
476 } else {
477 return null;
478 }
479 }
480
481 public long[] getPgpKeyIds() {
482 List<Long> ids = new ArrayList<>();
483 for (User user : this.users) {
484 if (user.getPgpKeyId() != 0) {
485 ids.add(user.getPgpKeyId());
486 }
487 }
488 ids.add(account.getPgpId());
489 long[] primitiveLongArray = new long[ids.size()];
490 for (int i = 0; i < ids.size(); ++i) {
491 primitiveLongArray[i] = ids.get(i);
492 }
493 return primitiveLongArray;
494 }
495
496 public boolean pgpKeysInUse() {
497 synchronized (users) {
498 for (User user : users) {
499 if (user.getPgpKeyId() != 0) {
500 return true;
501 }
502 }
503 }
504 return false;
505 }
506
507 public boolean everybodyHasKeys() {
508 synchronized (users) {
509 for (User user : users) {
510 if (user.getPgpKeyId() == 0) {
511 return false;
512 }
513 }
514 }
515 return true;
516 }
517
518 public Jid createJoinJid(String nick) {
519 try {
520 return Jid.of(this.conversation.getJid().asBareJid().toString() + "/" + nick);
521 } catch (final IllegalArgumentException e) {
522 return null;
523 }
524 }
525
526 public Jid getTrueCounterpart(Jid jid) {
527 if (jid.equals(getSelf().getFullJid())) {
528 return account.getJid().asBareJid();
529 }
530 User user = findUserByFullJid(jid);
531 return user == null ? null : user.realJid;
532 }
533
534 public String getPassword() {
535 this.password = conversation.getAttribute(Conversation.ATTRIBUTE_MUC_PASSWORD);
536 if (this.password == null && conversation.getBookmark() != null
537 && conversation.getBookmark().getPassword() != null) {
538 return conversation.getBookmark().getPassword();
539 } else {
540 return this.password;
541 }
542 }
543
544 public void setPassword(String password) {
545 if (conversation.getBookmark() != null) {
546 conversation.getBookmark().setPassword(password);
547 } else {
548 this.password = password;
549 }
550 conversation.setAttribute(Conversation.ATTRIBUTE_MUC_PASSWORD, password);
551 }
552
553 public Conversation getConversation() {
554 return this.conversation;
555 }
556
557 public List<Jid> getMembers(final boolean includeDomains) {
558 ArrayList<Jid> members = new ArrayList<>();
559 synchronized (users) {
560 for (User user : users) {
561 if (user.affiliation.ranks(Affiliation.MEMBER) && user.realJid != null && (!user.isDomain() || includeDomains)) {
562 members.add(user.realJid);
563 }
564 }
565 }
566 return members;
567 }
568
569 public enum Affiliation {
570 OWNER(4, R.string.owner),
571 ADMIN(3, R.string.admin),
572 MEMBER(2, R.string.member),
573 OUTCAST(0, R.string.outcast),
574 NONE(1, R.string.no_affiliation);
575
576 private int resId;
577 private int rank;
578 Affiliation(int rank, int resId) {
579 this.resId = resId;
580 this.rank = rank;
581 }
582
583 public static Affiliation of(@Nullable String value) {
584 if (value == null) {
585 return NONE;
586 }
587 try {
588 return Affiliation.valueOf(value.toUpperCase(Locale.US));
589 } catch (IllegalArgumentException e) {
590 return NONE;
591 }
592 }
593
594 public int getResId() {
595 return resId;
596 }
597
598 @Override
599 public String toString() {
600 return name().toLowerCase(Locale.US);
601 }
602
603 public boolean outranks(Affiliation affiliation) {
604 return rank > affiliation.rank;
605 }
606
607 public boolean ranks(Affiliation affiliation) {
608 return rank >= affiliation.rank;
609 }
610 }
611
612 public enum Role {
613 MODERATOR(R.string.moderator, 3),
614 VISITOR(R.string.visitor, 1),
615 PARTICIPANT(R.string.participant, 2),
616 NONE(R.string.no_role, 0);
617
618 private int resId;
619 private int rank;
620 Role(int resId, int rank) {
621 this.resId = resId;
622 this.rank = rank;
623 }
624
625 public static Role of(@Nullable String value) {
626 if (value == null) {
627 return NONE;
628 }
629 try {
630 return Role.valueOf(value.toUpperCase(Locale.US));
631 } catch (IllegalArgumentException e) {
632 return NONE;
633 }
634 }
635
636 public int getResId() {
637 return resId;
638 }
639
640 @Override
641 public String toString() {
642 return name().toLowerCase(Locale.US);
643 }
644
645 public boolean ranks(Role role) {
646 return rank >= role.rank;
647 }
648 }
649
650 public enum Error {
651 NO_RESPONSE,
652 SERVER_NOT_FOUND,
653 REMOTE_SERVER_TIMEOUT,
654 NONE,
655 NICK_IN_USE,
656 PASSWORD_REQUIRED,
657 BANNED,
658 MEMBERS_ONLY,
659 RESOURCE_CONSTRAINT,
660 KICKED,
661 SHUTDOWN,
662 DESTROYED,
663 INVALID_NICK,
664 UNKNOWN
665 }
666
667 private interface OnEventListener {
668 void onSuccess();
669
670 void onFailure();
671 }
672
673 public interface OnRenameListener extends OnEventListener {
674
675 }
676
677 public static class User implements Comparable<User> {
678 private Role role = Role.NONE;
679 private Affiliation affiliation = Affiliation.NONE;
680 private Jid realJid;
681 private Jid fullJid;
682 private long pgpKeyId = 0;
683 private Avatar avatar;
684 private MucOptions options;
685 private ChatState chatState = Config.DEFAULT_CHATSTATE;
686
687 public User(MucOptions options, Jid fullJid) {
688 this.options = options;
689 this.fullJid = fullJid;
690 }
691
692 public String getName() {
693 return fullJid == null ? null : fullJid.getResource();
694 }
695
696 public Role getRole() {
697 return this.role;
698 }
699
700 public void setRole(String role) {
701 this.role = Role.of(role);
702 }
703
704 public Affiliation getAffiliation() {
705 return this.affiliation;
706 }
707
708 public void setAffiliation(String affiliation) {
709 this.affiliation = Affiliation.of(affiliation);
710 }
711
712 public long getPgpKeyId() {
713 if (this.pgpKeyId != 0) {
714 return this.pgpKeyId;
715 } else if (realJid != null) {
716 return getAccount().getRoster().getContact(realJid).getPgpKeyId();
717 } else {
718 return 0;
719 }
720 }
721
722 public void setPgpKeyId(long id) {
723 this.pgpKeyId = id;
724 }
725
726 public Contact getContact() {
727 if (fullJid != null) {
728 return getAccount().getRoster().getContactFromContactList(realJid);
729 } else if (realJid != null) {
730 return getAccount().getRoster().getContact(realJid);
731 } else {
732 return null;
733 }
734 }
735
736 public boolean setAvatar(Avatar avatar) {
737 if (this.avatar != null && this.avatar.equals(avatar)) {
738 return false;
739 } else {
740 this.avatar = avatar;
741 return true;
742 }
743 }
744
745 public String getAvatar() {
746 if (avatar != null) {
747 return avatar.getFilename();
748 }
749 Avatar avatar = realJid != null ? getAccount().getRoster().getContact(realJid).getAvatar() : null;
750 return avatar == null ? null : avatar.getFilename();
751 }
752
753 public Account getAccount() {
754 return options.getAccount();
755 }
756
757 public Conversation getConversation() {
758 return options.getConversation();
759 }
760
761 public Jid getFullJid() {
762 return fullJid;
763 }
764
765 @Override
766 public boolean equals(Object o) {
767 if (this == o) return true;
768 if (o == null || getClass() != o.getClass()) return false;
769
770 User user = (User) o;
771
772 if (role != user.role) return false;
773 if (affiliation != user.affiliation) return false;
774 if (realJid != null ? !realJid.equals(user.realJid) : user.realJid != null)
775 return false;
776 return fullJid != null ? fullJid.equals(user.fullJid) : user.fullJid == null;
777
778 }
779
780 public boolean isDomain() {
781 return realJid != null && realJid.getLocal() == null && role == Role.NONE;
782 }
783
784 @Override
785 public int hashCode() {
786 int result = role != null ? role.hashCode() : 0;
787 result = 31 * result + (affiliation != null ? affiliation.hashCode() : 0);
788 result = 31 * result + (realJid != null ? realJid.hashCode() : 0);
789 result = 31 * result + (fullJid != null ? fullJid.hashCode() : 0);
790 return result;
791 }
792
793 @Override
794 public String toString() {
795 return "[fulljid:" + String.valueOf(fullJid) + ",realjid:" + String.valueOf(realJid) + ",affiliation" + affiliation.toString() + "]";
796 }
797
798 public boolean realJidMatchesAccount() {
799 return realJid != null && realJid.equals(options.account.getJid().asBareJid());
800 }
801
802 @Override
803 public int compareTo(@NonNull User another) {
804 if (another.getAffiliation().outranks(getAffiliation())) {
805 return 1;
806 } else if (getAffiliation().outranks(another.getAffiliation())) {
807 return -1;
808 } else {
809 return getComparableName().compareToIgnoreCase(another.getComparableName());
810 }
811 }
812
813 private String getComparableName() {
814 Contact contact = getContact();
815 if (contact != null) {
816 return contact.getDisplayName();
817 } else {
818 String name = getName();
819 return name == null ? "" : name;
820 }
821 }
822
823 public Jid getRealJid() {
824 return realJid;
825 }
826
827 public void setRealJid(Jid jid) {
828 this.realJid = jid != null ? jid.asBareJid() : null;
829 }
830
831 public boolean setChatState(ChatState chatState) {
832 if (this.chatState == chatState) {
833 return false;
834 }
835 this.chatState = chatState;
836 return true;
837 }
838 }
839}