nmode's Git Repositories - signal-cli/blob - lib/src/main/java/org/asamk/signal/manager/ManagerImpl.java

   1 /*
   2   Copyright (C) 2015-2022 AsamK and contributors
   3
   4   This program is free software: you can redistribute it and/or modify
   5   it under the terms of the GNU General Public License as published by
   6   the Free Software Foundation, either version 3 of the License, or
   7   (at your option) any later version.
   8
   9   This program is distributed in the hope that it will be useful,
  10   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12   GNU General Public License for more details.
  13
  14   You should have received a copy of the GNU General Public License
  15   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17 package org.asamk.signal.manager;
  18
  19 import org.asamk.signal.manager.api.AttachmentInvalidException;
  20 import org.asamk.signal.manager.api.Configuration;
  21 import org.asamk.signal.manager.api.Device;
  22 import org.asamk.signal.manager.api.Group;
  23 import org.asamk.signal.manager.api.Identity;
  24 import org.asamk.signal.manager.api.InactiveGroupLinkException;
  25 import org.asamk.signal.manager.api.InvalidDeviceLinkException;
  26 import org.asamk.signal.manager.api.InvalidStickerException;
  27 import org.asamk.signal.manager.api.Message;
  28 import org.asamk.signal.manager.api.NotPrimaryDeviceException;
  29 import org.asamk.signal.manager.api.Pair;
  30 import org.asamk.signal.manager.api.ReceiveConfig;
  31 import org.asamk.signal.manager.api.RecipientIdentifier;
  32 import org.asamk.signal.manager.api.SendGroupMessageResults;
  33 import org.asamk.signal.manager.api.SendMessageResult;
  34 import org.asamk.signal.manager.api.SendMessageResults;
  35 import org.asamk.signal.manager.api.StickerPack;
  36 import org.asamk.signal.manager.api.StickerPackId;
  37 import org.asamk.signal.manager.api.StickerPackInvalidException;
  38 import org.asamk.signal.manager.api.StickerPackUrl;
  39 import org.asamk.signal.manager.api.TypingAction;
  40 import org.asamk.signal.manager.api.UnregisteredRecipientException;
  41 import org.asamk.signal.manager.api.UpdateGroup;
  42 import org.asamk.signal.manager.api.UpdateProfile;
  43 import org.asamk.signal.manager.api.UserStatus;
  44 import org.asamk.signal.manager.config.ServiceEnvironmentConfig;
  45 import org.asamk.signal.manager.groups.GroupId;
  46 import org.asamk.signal.manager.groups.GroupInviteLinkUrl;
  47 import org.asamk.signal.manager.groups.GroupNotFoundException;
  48 import org.asamk.signal.manager.groups.GroupSendingNotAllowedException;
  49 import org.asamk.signal.manager.groups.LastGroupAdminException;
  50 import org.asamk.signal.manager.groups.NotAGroupMemberException;
  51 import org.asamk.signal.manager.helper.AccountFileUpdater;
  52 import org.asamk.signal.manager.helper.Context;
  53 import org.asamk.signal.manager.storage.SignalAccount;
  54 import org.asamk.signal.manager.storage.groups.GroupInfo;
  55 import org.asamk.signal.manager.storage.identities.IdentityInfo;
  56 import org.asamk.signal.manager.storage.recipients.Profile;
  57 import org.asamk.signal.manager.storage.recipients.Recipient;
  58 import org.asamk.signal.manager.storage.recipients.RecipientId;
  59 import org.asamk.signal.manager.storage.stickerPacks.JsonStickerPack;
  60 import org.asamk.signal.manager.storage.stickerPacks.StickerPackStore;
  61 import org.asamk.signal.manager.storage.stickers.Sticker;
  62 import org.asamk.signal.manager.util.AttachmentUtils;
  63 import org.asamk.signal.manager.util.KeyUtils;
  64 import org.asamk.signal.manager.util.StickerUtils;
  65 import org.slf4j.Logger;
  66 import org.slf4j.LoggerFactory;
  67 import org.whispersystems.signalservice.api.SignalSessionLock;
  68 import org.whispersystems.signalservice.api.messages.SignalServiceDataMessage;
  69 import org.whispersystems.signalservice.api.messages.SignalServicePreview;
  70 import org.whispersystems.signalservice.api.messages.SignalServiceReceiptMessage;
  71 import org.whispersystems.signalservice.api.messages.SignalServiceTypingMessage;
  72 import org.whispersystems.signalservice.api.push.ACI;
  73 import org.whispersystems.signalservice.api.util.DeviceNameUtil;
  74 import org.whispersystems.signalservice.api.util.InvalidNumberException;
  75 import org.whispersystems.signalservice.api.util.PhoneNumberFormatter;
  76 import org.whispersystems.signalservice.internal.util.Hex;
  77 import org.whispersystems.signalservice.internal.util.Util;
  78
  79 import java.io.File;
  80 import java.io.IOException;
  81 import java.net.URI;
  82 import java.time.Duration;
  83 import java.util.ArrayList;
  84 import java.util.Collection;
  85 import java.util.HashMap;
  86 import java.util.HashSet;
  87 import java.util.List;
  88 import java.util.Map;
  89 import java.util.Objects;
  90 import java.util.Optional;
  91 import java.util.Set;
  92 import java.util.concurrent.ExecutorService;
  93 import java.util.concurrent.Executors;
  94 import java.util.concurrent.atomic.AtomicInteger;
  95 import java.util.concurrent.locks.ReentrantLock;
  96 import java.util.function.Function;
  97 import java.util.stream.Collectors;
  98 import java.util.stream.Stream;
  99
 100 import io.reactivex.rxjava3.disposables.CompositeDisposable;
 101
 102 class ManagerImpl implements Manager {
 103
 104     private final static Logger logger = LoggerFactory.getLogger(ManagerImpl.class);
 105
 106     private SignalAccount account;
 107     private final SignalDependencies dependencies;
 108     private final Context context;
 109
 110     private final ExecutorService executor = Executors.newCachedThreadPool();
 111
 112     private Thread receiveThread;
 113     private boolean isReceivingSynchronous;
 114     private final Set<ReceiveMessageHandler> weakHandlers = new HashSet<>();
 115     private final Set<ReceiveMessageHandler> messageHandlers = new HashSet<>();
 116     private final List<Runnable> closedListeners = new ArrayList<>();
 117     private final List<Runnable> addressChangedListeners = new ArrayList<>();
 118     private final CompositeDisposable disposable = new CompositeDisposable();
 119
 120     ManagerImpl(
 121             SignalAccount account,
 122             PathConfig pathConfig,
 123             AccountFileUpdater accountFileUpdater,
 124             ServiceEnvironmentConfig serviceEnvironmentConfig,
 125             String userAgent
 126     ) {
 127         this.account = account;
 128
 129         final var sessionLock = new SignalSessionLock() {
 130             private final ReentrantLock LEGACY_LOCK = new ReentrantLock();
 131
 132             @Override
 133             public Lock acquire() {
 134                 LEGACY_LOCK.lock();
 135                 return LEGACY_LOCK::unlock;
 136             }
 137         };
 138         this.dependencies = new SignalDependencies(serviceEnvironmentConfig,
 139                 userAgent,
 140                 account.getCredentialsProvider(),
 141                 account.getSignalServiceDataStore(),
 142                 executor,
 143                 sessionLock);
 144         final var avatarStore = new AvatarStore(pathConfig.avatarsPath());
 145         final var attachmentStore = new AttachmentStore(pathConfig.attachmentsPath());
 146         final var stickerPackStore = new StickerPackStore(pathConfig.stickerPacksPath());
 147
 148         this.context = new Context(account, new AccountFileUpdater() {
 149             @Override
 150             public void updateAccountIdentifiers(final String number, final ACI aci) {
 151                 accountFileUpdater.updateAccountIdentifiers(number, aci);
 152                 synchronized (addressChangedListeners) {
 153                     addressChangedListeners.forEach(Runnable::run);
 154                 }
 155             }
 156
 157             @Override
 158             public void removeAccount() {
 159                 accountFileUpdater.removeAccount();
 160             }
 161         }, dependencies, avatarStore, attachmentStore, stickerPackStore);
 162         this.context.getAccountHelper().setUnregisteredListener(this::close);
 163         this.context.getReceiveHelper().setAuthenticationFailureListener(this::close);
 164         this.context.getReceiveHelper().setCaughtUpWithOldMessagesListener(() -> {
 165             synchronized (this) {
 166                 this.notifyAll();
 167             }
 168         });
 169         disposable.add(account.getIdentityKeyStore().getIdentityChanges().subscribe(recipientId -> {
 170             logger.trace("Archiving old sessions for {}", recipientId);
 171             account.getSessionStore().archiveSessions(recipientId);
 172             account.getSenderKeyStore().deleteSharedWith(recipientId);
 173             final var profile = account.getProfileStore().getProfile(recipientId);
 174             if (profile != null) {
 175                 account.getProfileStore()
 176                         .storeProfile(recipientId,
 177                                 Profile.newBuilder(profile)
 178                                         .withUnidentifiedAccessMode(Profile.UnidentifiedAccessMode.UNKNOWN)
 179                                         .withLastUpdateTimestamp(0)
 180                                         .build());
 181             }
 182         }));
 183     }
 184
 185     @Override
 186     public String getSelfNumber() {
 187         return account.getNumber();
 188     }
 189
 190     void checkAccountState() throws IOException {
 191         context.getAccountHelper().checkAccountState();
 192     }
 193
 194     @Override
 195     public Map<String, UserStatus> getUserStatus(Set<String> numbers) throws IOException {
 196         final var canonicalizedNumbers = numbers.stream().collect(Collectors.toMap(n -> n, n -> {
 197             try {
 198                 final var canonicalizedNumber = PhoneNumberFormatter.formatNumber(n, account.getNumber());
 199                 if (!canonicalizedNumber.equals(n)) {
 200                     logger.debug("Normalized number {} to {}.", n, canonicalizedNumber);
 201                 }
 202                 return canonicalizedNumber;
 203             } catch (InvalidNumberException e) {
 204                 return "";
 205             }
 206         }));
 207
 208         // Note "registeredUsers" has no optionals. It only gives us info on users who are registered
 209         final var canonicalizedNumbersSet = canonicalizedNumbers.values()
 210                 .stream()
 211                 .filter(s -> !s.isEmpty())
 212                 .collect(Collectors.toSet());
 213         final var registeredUsers = context.getRecipientHelper().getRegisteredUsers(canonicalizedNumbersSet);
 214
 215         return numbers.stream().collect(Collectors.toMap(n -> n, n -> {
 216             final var number = canonicalizedNumbers.get(n);
 217             final var aci = registeredUsers.get(number);
 218             final var profile = aci == null
 219                     ? null
 220                     : context.getProfileHelper()
 221                             .getRecipientProfile(account.getRecipientResolver().resolveRecipient(aci));
 222             return new UserStatus(number.isEmpty() ? null : number,
 223                     aci == null ? null : aci.uuid(),
 224                     profile != null
 225                             && profile.getUnidentifiedAccessMode() == Profile.UnidentifiedAccessMode.UNRESTRICTED);
 226         }));
 227     }
 228
 229     @Override
 230     public void updateAccountAttributes(String deviceName) throws IOException {
 231         if (deviceName != null) {
 232             context.getAccountHelper().setDeviceName(deviceName);
 233         }
 234         context.getAccountHelper().checkWhoAmiI();
 235         context.getAccountHelper().updateAccountAttributes();
 236     }
 237
 238     @Override
 239     public Configuration getConfiguration() {
 240         final var configurationStore = account.getConfigurationStore();
 241         return Configuration.from(configurationStore);
 242     }
 243
 244     @Override
 245     public void updateConfiguration(
 246             Configuration configuration
 247     ) throws NotPrimaryDeviceException {
 248         if (!account.isPrimaryDevice()) {
 249             throw new NotPrimaryDeviceException();
 250         }
 251
 252         final var configurationStore = account.getConfigurationStore();
 253         if (configuration.readReceipts().isPresent()) {
 254             configurationStore.setReadReceipts(configuration.readReceipts().get());
 255         }
 256         if (configuration.unidentifiedDeliveryIndicators().isPresent()) {
 257             configurationStore.setUnidentifiedDeliveryIndicators(configuration.unidentifiedDeliveryIndicators().get());
 258         }
 259         if (configuration.typingIndicators().isPresent()) {
 260             configurationStore.setTypingIndicators(configuration.typingIndicators().get());
 261         }
 262         if (configuration.linkPreviews().isPresent()) {
 263             configurationStore.setLinkPreviews(configuration.linkPreviews().get());
 264         }
 265         context.getSyncHelper().sendConfigurationMessage();
 266     }
 267
 268     @Override
 269     public void updateProfile(UpdateProfile updateProfile) throws IOException {
 270         context.getProfileHelper()
 271                 .setProfile(updateProfile.getGivenName(),
 272                         updateProfile.getFamilyName(),
 273                         updateProfile.getAbout(),
 274                         updateProfile.getAboutEmoji(),
 275                         updateProfile.isDeleteAvatar()
 276                                 ? Optional.empty()
 277                                 : updateProfile.getAvatar() == null ? null : Optional.of(updateProfile.getAvatar()),
 278                         updateProfile.getMobileCoinAddress());
 279         context.getSyncHelper().sendSyncFetchProfileMessage();
 280     }
 281
 282     @Override
 283     public void unregister() throws IOException {
 284         context.getAccountHelper().unregister();
 285     }
 286
 287     @Override
 288     public void deleteAccount() throws IOException {
 289         context.getAccountHelper().deleteAccount();
 290     }
 291
 292     @Override
 293     public void submitRateLimitRecaptchaChallenge(String challenge, String captcha) throws IOException {
 294         captcha = captcha == null ? null : captcha.replace("signalcaptcha://", "");
 295
 296         dependencies.getAccountManager().submitRateLimitRecaptchaChallenge(challenge, captcha);
 297     }
 298
 299     @Override
 300     public List<Device> getLinkedDevices() throws IOException {
 301         var devices = dependencies.getAccountManager().getDevices();
 302         account.setMultiDevice(devices.size() > 1);
 303         var identityKey = account.getAciIdentityKeyPair().getPrivateKey();
 304         return devices.stream().map(d -> {
 305             String deviceName = d.getName();
 306             if (deviceName != null) {
 307                 try {
 308                     deviceName = DeviceNameUtil.decryptDeviceName(deviceName, identityKey);
 309                 } catch (IOException e) {
 310                     logger.debug("Failed to decrypt device name, maybe plain text?", e);
 311                 }
 312             }
 313             return new Device(d.getId(),
 314                     deviceName,
 315                     d.getCreated(),
 316                     d.getLastSeen(),
 317                     d.getId() == account.getDeviceId());
 318         }).toList();
 319     }
 320
 321     @Override
 322     public void removeLinkedDevices(int deviceId) throws IOException {
 323         context.getAccountHelper().removeLinkedDevices(deviceId);
 324     }
 325
 326     @Override
 327     public void addDeviceLink(URI linkUri) throws IOException, InvalidDeviceLinkException {
 328         var deviceLinkInfo = DeviceLinkInfo.parseDeviceLinkUri(linkUri);
 329         context.getAccountHelper().addDevice(deviceLinkInfo);
 330     }
 331
 332     @Override
 333     public void setRegistrationLockPin(Optional<String> pin) throws IOException, NotPrimaryDeviceException {
 334         if (!account.isPrimaryDevice()) {
 335             throw new NotPrimaryDeviceException();
 336         }
 337         if (pin.isPresent()) {
 338             context.getAccountHelper().setRegistrationPin(pin.get());
 339         } else {
 340             context.getAccountHelper().removeRegistrationPin();
 341         }
 342     }
 343
 344     void refreshPreKeys() throws IOException {
 345         context.getPreKeyHelper().refreshPreKeys();
 346     }
 347
 348     @Override
 349     public Profile getRecipientProfile(RecipientIdentifier.Single recipient) throws UnregisteredRecipientException {
 350         return context.getProfileHelper().getRecipientProfile(context.getRecipientHelper().resolveRecipient(recipient));
 351     }
 352
 353     @Override
 354     public List<Group> getGroups() {
 355         return account.getGroupStore().getGroups().stream().map(this::toGroup).toList();
 356     }
 357
 358     private Group toGroup(final GroupInfo groupInfo) {
 359         if (groupInfo == null) {
 360             return null;
 361         }
 362
 363         return Group.from(groupInfo, account.getRecipientAddressResolver(), account.getSelfRecipientId());
 364     }
 365
 366     @Override
 367     public SendGroupMessageResults quitGroup(
 368             GroupId groupId, Set<RecipientIdentifier.Single> groupAdmins
 369     ) throws GroupNotFoundException, IOException, NotAGroupMemberException, LastGroupAdminException, UnregisteredRecipientException {
 370         final var newAdmins = context.getRecipientHelper().resolveRecipients(groupAdmins);
 371         return context.getGroupHelper().quitGroup(groupId, newAdmins);
 372     }
 373
 374     @Override
 375     public void deleteGroup(GroupId groupId) throws IOException {
 376         final var group = context.getGroupHelper().getGroup(groupId);
 377         if (group.isMember(account.getSelfRecipientId())) {
 378             throw new IOException(
 379                     "The local group information cannot be removed, as the user is still a member of the group");
 380         }
 381         context.getGroupHelper().deleteGroup(groupId);
 382     }
 383
 384     @Override
 385     public Pair<GroupId, SendGroupMessageResults> createGroup(
 386             String name, Set<RecipientIdentifier.Single> members, File avatarFile
 387     ) throws IOException, AttachmentInvalidException, UnregisteredRecipientException {
 388         return context.getGroupHelper()
 389                 .createGroup(name,
 390                         members == null ? null : context.getRecipientHelper().resolveRecipients(members),
 391                         avatarFile);
 392     }
 393
 394     @Override
 395     public SendGroupMessageResults updateGroup(
 396             final GroupId groupId, final UpdateGroup updateGroup
 397     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException, GroupSendingNotAllowedException, UnregisteredRecipientException {
 398         return context.getGroupHelper()
 399                 .updateGroup(groupId,
 400                         updateGroup.getName(),
 401                         updateGroup.getDescription(),
 402                         updateGroup.getMembers() == null
 403                                 ? null
 404                                 : context.getRecipientHelper().resolveRecipients(updateGroup.getMembers()),
 405                         updateGroup.getRemoveMembers() == null
 406                                 ? null
 407                                 : context.getRecipientHelper().resolveRecipients(updateGroup.getRemoveMembers()),
 408                         updateGroup.getAdmins() == null
 409                                 ? null
 410                                 : context.getRecipientHelper().resolveRecipients(updateGroup.getAdmins()),
 411                         updateGroup.getRemoveAdmins() == null
 412                                 ? null
 413                                 : context.getRecipientHelper().resolveRecipients(updateGroup.getRemoveAdmins()),
 414                         updateGroup.getBanMembers() == null
 415                                 ? null
 416                                 : context.getRecipientHelper().resolveRecipients(updateGroup.getBanMembers()),
 417                         updateGroup.getUnbanMembers() == null
 418                                 ? null
 419                                 : context.getRecipientHelper().resolveRecipients(updateGroup.getUnbanMembers()),
 420                         updateGroup.isResetGroupLink(),
 421                         updateGroup.getGroupLinkState(),
 422                         updateGroup.getAddMemberPermission(),
 423                         updateGroup.getEditDetailsPermission(),
 424                         updateGroup.getAvatarFile(),
 425                         updateGroup.getExpirationTimer(),
 426                         updateGroup.getIsAnnouncementGroup());
 427     }
 428
 429     @Override
 430     public Pair<GroupId, SendGroupMessageResults> joinGroup(
 431             GroupInviteLinkUrl inviteLinkUrl
 432     ) throws IOException, InactiveGroupLinkException {
 433         return context.getGroupHelper().joinGroup(inviteLinkUrl);
 434     }
 435
 436     private SendMessageResults sendMessage(
 437             SignalServiceDataMessage.Builder messageBuilder, Set<RecipientIdentifier> recipients
 438     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException {
 439         var results = new HashMap<RecipientIdentifier, List<SendMessageResult>>();
 440         long timestamp = System.currentTimeMillis();
 441         messageBuilder.withTimestamp(timestamp);
 442         for (final var recipient : recipients) {
 443             if (recipient instanceof RecipientIdentifier.Single single) {
 444                 try {
 445                     final var recipientId = context.getRecipientHelper().resolveRecipient(single);
 446                     final var result = context.getSendHelper().sendMessage(messageBuilder, recipientId);
 447                     results.put(recipient, List.of(toSendMessageResult(result)));
 448                 } catch (UnregisteredRecipientException e) {
 449                     results.put(recipient,
 450                             List.of(SendMessageResult.unregisteredFailure(single.toPartialRecipientAddress())));
 451                 }
 452             } else if (recipient instanceof RecipientIdentifier.NoteToSelf) {
 453                 final var result = context.getSendHelper().sendSelfMessage(messageBuilder);
 454                 results.put(recipient, List.of(toSendMessageResult(result)));
 455             } else if (recipient instanceof RecipientIdentifier.Group group) {
 456                 final var result = context.getSendHelper().sendAsGroupMessage(messageBuilder, group.groupId());
 457                 results.put(recipient, result.stream().map(this::toSendMessageResult).toList());
 458             }
 459         }
 460         return new SendMessageResults(timestamp, results);
 461     }
 462
 463     private SendMessageResult toSendMessageResult(final org.whispersystems.signalservice.api.messages.SendMessageResult result) {
 464         return SendMessageResult.from(result, account.getRecipientResolver(), account.getRecipientAddressResolver());
 465     }
 466
 467     private SendMessageResults sendTypingMessage(
 468             SignalServiceTypingMessage.Action action, Set<RecipientIdentifier> recipients
 469     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException {
 470         var results = new HashMap<RecipientIdentifier, List<SendMessageResult>>();
 471         final var timestamp = System.currentTimeMillis();
 472         for (var recipient : recipients) {
 473             if (recipient instanceof RecipientIdentifier.Single single) {
 474                 final var message = new SignalServiceTypingMessage(action, timestamp, Optional.empty());
 475                 try {
 476                     final var recipientId = context.getRecipientHelper().resolveRecipient(single);
 477                     final var result = context.getSendHelper().sendTypingMessage(message, recipientId);
 478                     results.put(recipient, List.of(toSendMessageResult(result)));
 479                 } catch (UnregisteredRecipientException e) {
 480                     results.put(recipient,
 481                             List.of(SendMessageResult.unregisteredFailure(single.toPartialRecipientAddress())));
 482                 }
 483             } else if (recipient instanceof RecipientIdentifier.Group) {
 484                 final var groupId = ((RecipientIdentifier.Group) recipient).groupId();
 485                 final var message = new SignalServiceTypingMessage(action, timestamp, Optional.of(groupId.serialize()));
 486                 final var result = context.getSendHelper().sendGroupTypingMessage(message, groupId);
 487                 results.put(recipient, result.stream().map(this::toSendMessageResult).toList());
 488             }
 489         }
 490         return new SendMessageResults(timestamp, results);
 491     }
 492
 493     @Override
 494     public SendMessageResults sendTypingMessage(
 495             TypingAction action, Set<RecipientIdentifier> recipients
 496     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException {
 497         return sendTypingMessage(action.toSignalService(), recipients);
 498     }
 499
 500     @Override
 501     public SendMessageResults sendReadReceipt(
 502             RecipientIdentifier.Single sender, List<Long> messageIds
 503     ) {
 504         final var timestamp = System.currentTimeMillis();
 505         var receiptMessage = new SignalServiceReceiptMessage(SignalServiceReceiptMessage.Type.READ,
 506                 messageIds,
 507                 timestamp);
 508
 509         return sendReceiptMessage(sender, timestamp, receiptMessage);
 510     }
 511
 512     @Override
 513     public SendMessageResults sendViewedReceipt(
 514             RecipientIdentifier.Single sender, List<Long> messageIds
 515     ) {
 516         final var timestamp = System.currentTimeMillis();
 517         var receiptMessage = new SignalServiceReceiptMessage(SignalServiceReceiptMessage.Type.VIEWED,
 518                 messageIds,
 519                 timestamp);
 520
 521         return sendReceiptMessage(sender, timestamp, receiptMessage);
 522     }
 523
 524     private SendMessageResults sendReceiptMessage(
 525             final RecipientIdentifier.Single sender,
 526             final long timestamp,
 527             final SignalServiceReceiptMessage receiptMessage
 528     ) {
 529         try {
 530             final var result = context.getSendHelper()
 531                     .sendReceiptMessage(receiptMessage, context.getRecipientHelper().resolveRecipient(sender));
 532             return new SendMessageResults(timestamp, Map.of(sender, List.of(toSendMessageResult(result))));
 533         } catch (UnregisteredRecipientException e) {
 534             return new SendMessageResults(timestamp,
 535                     Map.of(sender, List.of(SendMessageResult.unregisteredFailure(sender.toPartialRecipientAddress()))));
 536         }
 537     }
 538
 539     @Override
 540     public SendMessageResults sendMessage(
 541             Message message, Set<RecipientIdentifier> recipients
 542     ) throws IOException, AttachmentInvalidException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException, UnregisteredRecipientException, InvalidStickerException {
 543         final var selfProfile = context.getProfileHelper().getSelfProfile();
 544         if (selfProfile == null || selfProfile.getDisplayName().isEmpty()) {
 545             logger.warn(
 546                     "No profile name set. When sending a message it's recommended to set a profile name wit the updateProfile command. This may become mandatory in the future.");
 547         }
 548         final var messageBuilder = SignalServiceDataMessage.newBuilder();
 549         applyMessage(messageBuilder, message);
 550         return sendMessage(messageBuilder, recipients);
 551     }
 552
 553     private void applyMessage(
 554             final SignalServiceDataMessage.Builder messageBuilder, final Message message
 555     ) throws AttachmentInvalidException, IOException, UnregisteredRecipientException, InvalidStickerException {
 556         messageBuilder.withBody(message.messageText());
 557         if (message.attachments().size() > 0) {
 558             messageBuilder.withAttachments(context.getAttachmentHelper().uploadAttachments(message.attachments()));
 559         }
 560         if (message.mentions().size() > 0) {
 561             messageBuilder.withMentions(resolveMentions(message.mentions()));
 562         }
 563         if (message.quote().isPresent()) {
 564             final var quote = message.quote().get();
 565             messageBuilder.withQuote(new SignalServiceDataMessage.Quote(quote.timestamp(),
 566                     context.getRecipientHelper()
 567                             .resolveSignalServiceAddress(context.getRecipientHelper().resolveRecipient(quote.author())),
 568                     quote.message(),
 569                     List.of(),
 570                     resolveMentions(quote.mentions()),
 571                     SignalServiceDataMessage.Quote.Type.NORMAL));
 572         }
 573         if (message.sticker().isPresent()) {
 574             final var sticker = message.sticker().get();
 575             final var packId = StickerPackId.deserialize(sticker.packId());
 576             final var stickerId = sticker.stickerId();
 577
 578             final var stickerPack = context.getAccount().getStickerStore().getStickerPack(packId);
 579             if (stickerPack == null) {
 580                 throw new InvalidStickerException("Sticker pack not found");
 581             }
 582             final var manifest = context.getStickerHelper().getOrRetrieveStickerPack(packId, stickerPack.getPackKey());
 583             if (manifest.stickers().size() <= stickerId) {
 584                 throw new InvalidStickerException("Sticker id not part of this pack");
 585             }
 586             final var manifestSticker = manifest.stickers().get(stickerId);
 587             final var streamDetails = context.getStickerPackStore().retrieveSticker(packId, stickerId);
 588             if (streamDetails == null) {
 589                 throw new InvalidStickerException("Missing local sticker file");
 590             }
 591             messageBuilder.withSticker(new SignalServiceDataMessage.Sticker(packId.serialize(),
 592                     stickerPack.getPackKey(),
 593                     stickerId,
 594                     manifestSticker.emoji(),
 595                     AttachmentUtils.createAttachmentStream(streamDetails, Optional.empty())));
 596         }
 597         if (message.previews().size() > 0) {
 598             final var previews = new ArrayList<SignalServicePreview>(message.previews().size());
 599             for (final var p : message.previews()) {
 600                 final var image = p.image().isPresent() ? context.getAttachmentHelper()
 601                         .uploadAttachment(p.image().get()) : null;
 602                 previews.add(new SignalServicePreview(p.url(),
 603                         p.title(),
 604                         p.description(),
 605                         0,
 606                         Optional.ofNullable(image)));
 607             }
 608             messageBuilder.withPreviews(previews);
 609         }
 610     }
 611
 612     private ArrayList<SignalServiceDataMessage.Mention> resolveMentions(final List<Message.Mention> mentionList) throws UnregisteredRecipientException {
 613         final var mentions = new ArrayList<SignalServiceDataMessage.Mention>();
 614         for (final var m : mentionList) {
 615             final var recipientId = context.getRecipientHelper().resolveRecipient(m.recipient());
 616             mentions.add(new SignalServiceDataMessage.Mention(context.getRecipientHelper()
 617                     .resolveSignalServiceAddress(recipientId)
 618                     .getServiceId(), m.start(), m.length()));
 619         }
 620         return mentions;
 621     }
 622
 623     @Override
 624     public SendMessageResults sendRemoteDeleteMessage(
 625             long targetSentTimestamp, Set<RecipientIdentifier> recipients
 626     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException {
 627         var delete = new SignalServiceDataMessage.RemoteDelete(targetSentTimestamp);
 628         final var messageBuilder = SignalServiceDataMessage.newBuilder().withRemoteDelete(delete);
 629         for (final var recipient : recipients) {
 630             if (recipient instanceof RecipientIdentifier.Single r) {
 631                 try {
 632                     final var recipientId = context.getRecipientHelper().resolveRecipient(r);
 633                     account.getMessageSendLogStore().deleteEntryForRecipientNonGroup(targetSentTimestamp, recipientId);
 634                 } catch (UnregisteredRecipientException ignored) {
 635                 }
 636             } else if (recipient instanceof RecipientIdentifier.Group r) {
 637                 account.getMessageSendLogStore().deleteEntryForGroup(targetSentTimestamp, r.groupId());
 638             }
 639         }
 640         return sendMessage(messageBuilder, recipients);
 641     }
 642
 643     @Override
 644     public SendMessageResults sendMessageReaction(
 645             String emoji,
 646             boolean remove,
 647             RecipientIdentifier.Single targetAuthor,
 648             long targetSentTimestamp,
 649             Set<RecipientIdentifier> recipients
 650     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException, UnregisteredRecipientException {
 651         var targetAuthorRecipientId = context.getRecipientHelper().resolveRecipient(targetAuthor);
 652         var reaction = new SignalServiceDataMessage.Reaction(emoji,
 653                 remove,
 654                 context.getRecipientHelper().resolveSignalServiceAddress(targetAuthorRecipientId),
 655                 targetSentTimestamp);
 656         final var messageBuilder = SignalServiceDataMessage.newBuilder().withReaction(reaction);
 657         return sendMessage(messageBuilder, recipients);
 658     }
 659
 660     @Override
 661     public SendMessageResults sendPaymentNotificationMessage(
 662             byte[] receipt, String note, RecipientIdentifier.Single recipient
 663     ) throws IOException {
 664         final var paymentNotification = new SignalServiceDataMessage.PaymentNotification(receipt, note);
 665         final var payment = new SignalServiceDataMessage.Payment(paymentNotification);
 666         final var messageBuilder = SignalServiceDataMessage.newBuilder().withPayment(payment);
 667         try {
 668             return sendMessage(messageBuilder, Set.of(recipient));
 669         } catch (NotAGroupMemberException | GroupNotFoundException | GroupSendingNotAllowedException e) {
 670             throw new AssertionError(e);
 671         }
 672     }
 673
 674     @Override
 675     public SendMessageResults sendEndSessionMessage(Set<RecipientIdentifier.Single> recipients) throws IOException {
 676         var messageBuilder = SignalServiceDataMessage.newBuilder().asEndSessionMessage();
 677
 678         try {
 679             return sendMessage(messageBuilder,
 680                     recipients.stream().map(RecipientIdentifier.class::cast).collect(Collectors.toSet()));
 681         } catch (GroupNotFoundException | NotAGroupMemberException | GroupSendingNotAllowedException e) {
 682             throw new AssertionError(e);
 683         } finally {
 684             for (var recipient : recipients) {
 685                 final RecipientId recipientId;
 686                 try {
 687                     recipientId = context.getRecipientHelper().resolveRecipient(recipient);
 688                 } catch (UnregisteredRecipientException e) {
 689                     continue;
 690                 }
 691                 account.getSessionStore().deleteAllSessions(recipientId);
 692             }
 693         }
 694     }
 695
 696     @Override
 697     public void deleteRecipient(final RecipientIdentifier.Single recipient) {
 698         account.removeRecipient(account.getRecipientResolver().resolveRecipient(recipient.toPartialRecipientAddress()));
 699     }
 700
 701     @Override
 702     public void deleteContact(final RecipientIdentifier.Single recipient) {
 703         account.getContactStore()
 704                 .deleteContact(account.getRecipientResolver().resolveRecipient(recipient.toPartialRecipientAddress()));
 705     }
 706
 707     @Override
 708     public void setContactName(
 709             RecipientIdentifier.Single recipient, String givenName, final String familyName
 710     ) throws NotPrimaryDeviceException, UnregisteredRecipientException {
 711         if (!account.isPrimaryDevice()) {
 712             throw new NotPrimaryDeviceException();
 713         }
 714         context.getContactHelper()
 715                 .setContactName(context.getRecipientHelper().resolveRecipient(recipient), givenName, familyName);
 716     }
 717
 718     @Override
 719     public void setContactsBlocked(
 720             Collection<RecipientIdentifier.Single> recipients, boolean blocked
 721     ) throws NotPrimaryDeviceException, IOException, UnregisteredRecipientException {
 722         if (!account.isPrimaryDevice()) {
 723             throw new NotPrimaryDeviceException();
 724         }
 725         if (recipients.size() == 0) {
 726             return;
 727         }
 728         final var recipientIds = context.getRecipientHelper().resolveRecipients(recipients);
 729         final var selfRecipientId = account.getSelfRecipientId();
 730         boolean shouldRotateProfileKey = false;
 731         for (final var recipientId : recipientIds) {
 732             if (context.getContactHelper().isContactBlocked(recipientId) == blocked) {
 733                 continue;
 734             }
 735             context.getContactHelper().setContactBlocked(recipientId, blocked);
 736             // if we don't have a common group with the blocked contact we need to rotate the profile key
 737             shouldRotateProfileKey = blocked && (
 738                     shouldRotateProfileKey || account.getGroupStore()
 739                             .getGroups()
 740                             .stream()
 741                             .noneMatch(g -> g.isMember(selfRecipientId) && g.isMember(recipientId))
 742             );
 743         }
 744         if (shouldRotateProfileKey) {
 745             context.getProfileHelper().rotateProfileKey();
 746         }
 747         context.getSyncHelper().sendBlockedList();
 748     }
 749
 750     @Override
 751     public void setGroupsBlocked(
 752             final Collection<GroupId> groupIds, final boolean blocked
 753     ) throws GroupNotFoundException, NotPrimaryDeviceException, IOException {
 754         if (!account.isPrimaryDevice()) {
 755             throw new NotPrimaryDeviceException();
 756         }
 757         if (groupIds.size() == 0) {
 758             return;
 759         }
 760         boolean shouldRotateProfileKey = false;
 761         for (final var groupId : groupIds) {
 762             if (context.getGroupHelper().isGroupBlocked(groupId) == blocked) {
 763                 continue;
 764             }
 765             context.getGroupHelper().setGroupBlocked(groupId, blocked);
 766             shouldRotateProfileKey = blocked;
 767         }
 768         if (shouldRotateProfileKey) {
 769             context.getProfileHelper().rotateProfileKey();
 770         }
 771         context.getSyncHelper().sendBlockedList();
 772     }
 773
 774     @Override
 775     public void setExpirationTimer(
 776             RecipientIdentifier.Single recipient, int messageExpirationTimer
 777     ) throws IOException, UnregisteredRecipientException {
 778         var recipientId = context.getRecipientHelper().resolveRecipient(recipient);
 779         context.getContactHelper().setExpirationTimer(recipientId, messageExpirationTimer);
 780         final var messageBuilder = SignalServiceDataMessage.newBuilder().asExpirationUpdate();
 781         try {
 782             sendMessage(messageBuilder, Set.of(recipient));
 783         } catch (NotAGroupMemberException | GroupNotFoundException | GroupSendingNotAllowedException e) {
 784             throw new AssertionError(e);
 785         }
 786     }
 787
 788     @Override
 789     public StickerPackUrl uploadStickerPack(File path) throws IOException, StickerPackInvalidException {
 790         var manifest = StickerUtils.getSignalServiceStickerManifestUpload(path);
 791
 792         var messageSender = dependencies.getMessageSender();
 793
 794         var packKey = KeyUtils.createStickerUploadKey();
 795         var packIdString = messageSender.uploadStickerManifest(manifest, packKey);
 796         var packId = StickerPackId.deserialize(Hex.fromStringCondensed(packIdString));
 797
 798         var sticker = new Sticker(packId, packKey);
 799         account.getStickerStore().updateSticker(sticker);
 800
 801         return new StickerPackUrl(packId, packKey);
 802     }
 803
 804     @Override
 805     public List<StickerPack> getStickerPacks() {
 806         final var stickerPackStore = context.getStickerPackStore();
 807         return account.getStickerStore().getStickerPacks().stream().map(pack -> {
 808             if (stickerPackStore.existsStickerPack(pack.getPackId())) {
 809                 try {
 810                     final var manifest = stickerPackStore.retrieveManifest(pack.getPackId());
 811                     return new StickerPack(pack.getPackId(),
 812                             new StickerPackUrl(pack.getPackId(), pack.getPackKey()),
 813                             pack.isInstalled(),
 814                             manifest.title(),
 815                             manifest.author(),
 816                             Optional.ofNullable(manifest.cover() == null ? null : manifest.cover().toApi()),
 817                             manifest.stickers().stream().map(JsonStickerPack.JsonSticker::toApi).toList());
 818                 } catch (Exception e) {
 819                     logger.warn("Failed to read local sticker pack manifest: {}", e.getMessage(), e);
 820                 }
 821             }
 822
 823             return new StickerPack(pack.getPackId(), pack.getPackKey(), pack.isInstalled());
 824         }).toList();
 825     }
 826
 827     @Override
 828     public void requestAllSyncData() throws IOException {
 829         context.getSyncHelper().requestAllSyncData();
 830         retrieveRemoteStorage();
 831     }
 832
 833     void retrieveRemoteStorage() throws IOException {
 834         context.getStorageHelper().readDataFromStorage();
 835     }
 836
 837     @Override
 838     public void addReceiveHandler(final ReceiveMessageHandler handler, final boolean isWeakListener) {
 839         if (isReceivingSynchronous) {
 840             throw new IllegalStateException("Already receiving message synchronously.");
 841         }
 842         synchronized (messageHandlers) {
 843             if (isWeakListener) {
 844                 weakHandlers.add(handler);
 845             } else {
 846                 messageHandlers.add(handler);
 847                 startReceiveThreadIfRequired();
 848             }
 849         }
 850     }
 851
 852     private static final AtomicInteger threadNumber = new AtomicInteger(0);
 853
 854     private void startReceiveThreadIfRequired() {
 855         if (receiveThread != null) {
 856             return;
 857         }
 858         receiveThread = new Thread(() -> {
 859             logger.debug("Starting receiving messages");
 860             context.getReceiveHelper().receiveMessagesContinuously((envelope, e) -> {
 861                 synchronized (messageHandlers) {
 862                     final var handlers = Stream.concat(messageHandlers.stream(), weakHandlers.stream()).toList();
 863                     handlers.forEach(h -> {
 864                         try {
 865                             h.handleMessage(envelope, e);
 866                         } catch (Throwable ex) {
 867                             logger.warn("Message handler failed, ignoring", ex);
 868                         }
 869                     });
 870                 }
 871             });
 872             logger.debug("Finished receiving messages");
 873             synchronized (messageHandlers) {
 874                 receiveThread = null;
 875
 876                 // Check if in the meantime another handler has been registered
 877                 if (!messageHandlers.isEmpty()) {
 878                     logger.debug("Another handler has been registered, starting receive thread again");
 879                     startReceiveThreadIfRequired();
 880                 }
 881             }
 882         });
 883         receiveThread.setName("receive-" + threadNumber.getAndIncrement());
 884
 885         receiveThread.start();
 886     }
 887
 888     @Override
 889     public void removeReceiveHandler(final ReceiveMessageHandler handler) {
 890         final Thread thread;
 891         synchronized (messageHandlers) {
 892             weakHandlers.remove(handler);
 893             messageHandlers.remove(handler);
 894             if (!messageHandlers.isEmpty() || receiveThread == null || isReceivingSynchronous) {
 895                 return;
 896             }
 897             thread = receiveThread;
 898             receiveThread = null;
 899         }
 900
 901         stopReceiveThread(thread);
 902     }
 903
 904     private void stopReceiveThread(final Thread thread) {
 905         if (context.getReceiveHelper().requestStopReceiveMessages()) {
 906             logger.debug("Receive stop requested, interrupting read from server.");
 907             thread.interrupt();
 908         }
 909         try {
 910             thread.join();
 911         } catch (InterruptedException ignored) {
 912         }
 913     }
 914
 915     @Override
 916     public boolean isReceiving() {
 917         if (isReceivingSynchronous) {
 918             return true;
 919         }
 920         synchronized (messageHandlers) {
 921             return messageHandlers.size() > 0;
 922         }
 923     }
 924
 925     @Override
 926     public void receiveMessages(Duration timeout, ReceiveMessageHandler handler) throws IOException {
 927         receiveMessages(timeout, true, handler);
 928     }
 929
 930     @Override
 931     public void receiveMessages(ReceiveMessageHandler handler) throws IOException {
 932         receiveMessages(Duration.ofMinutes(1), false, handler);
 933     }
 934
 935     private void receiveMessages(
 936             Duration timeout, boolean returnOnTimeout, ReceiveMessageHandler handler
 937     ) throws IOException {
 938         if (isReceiving()) {
 939             throw new IllegalStateException("Already receiving message.");
 940         }
 941         isReceivingSynchronous = true;
 942         receiveThread = Thread.currentThread();
 943         try {
 944             context.getReceiveHelper().receiveMessages(timeout, returnOnTimeout, handler);
 945         } finally {
 946             receiveThread = null;
 947             isReceivingSynchronous = false;
 948         }
 949     }
 950
 951     @Override
 952     public void setReceiveConfig(final ReceiveConfig receiveConfig) {
 953         context.getReceiveHelper().setReceiveConfig(receiveConfig);
 954     }
 955
 956     @Override
 957     public boolean hasCaughtUpWithOldMessages() {
 958         return context.getReceiveHelper().hasCaughtUpWithOldMessages();
 959     }
 960
 961     @Override
 962     public boolean isContactBlocked(final RecipientIdentifier.Single recipient) {
 963         final RecipientId recipientId;
 964         try {
 965             recipientId = context.getRecipientHelper().resolveRecipient(recipient);
 966         } catch (UnregisteredRecipientException e) {
 967             return false;
 968         }
 969         return context.getContactHelper().isContactBlocked(recipientId);
 970     }
 971
 972     @Override
 973     public void sendContacts() throws IOException {
 974         context.getSyncHelper().sendContacts();
 975     }
 976
 977     @Override
 978     public List<Recipient> getRecipients(
 979             boolean onlyContacts,
 980             Optional<Boolean> blocked,
 981             Collection<RecipientIdentifier.Single> recipients,
 982             Optional<String> name
 983     ) {
 984         final var recipientIds = recipients.stream().map(a -> {
 985             try {
 986                 return context.getRecipientHelper().resolveRecipient(a);
 987             } catch (UnregisteredRecipientException e) {
 988                 return null;
 989             }
 990         }).filter(Objects::nonNull).collect(Collectors.toSet());
 991         if (!recipients.isEmpty() && recipientIds.isEmpty()) {
 992             return List.of();
 993         }
 994         // refresh profiles of explicitly given recipients
 995         context.getProfileHelper().refreshRecipientProfiles(recipientIds);
 996         return account.getRecipientStore().getRecipients(onlyContacts, blocked, recipientIds, name);
 997     }
 998
 999     @Override
1000     public String getContactOrProfileName(RecipientIdentifier.Single recipient) {
1001         final RecipientId recipientId;
1002         try {
1003             recipientId = context.getRecipientHelper().resolveRecipient(recipient);
1004         } catch (UnregisteredRecipientException e) {
1005             return null;
1006         }
1007
1008         final var contact = account.getContactStore().getContact(recipientId);
1009         if (contact != null && !Util.isEmpty(contact.getName())) {
1010             return contact.getName();
1011         }
1012
1013         final var profile = context.getProfileHelper().getRecipientProfile(recipientId);
1014         if (profile != null) {
1015             return profile.getDisplayName();
1016         }
1017
1018         return null;
1019     }
1020
1021     @Override
1022     public Group getGroup(GroupId groupId) {
1023         return toGroup(context.getGroupHelper().getGroup(groupId));
1024     }
1025
1026     @Override
1027     public List<Identity> getIdentities() {
1028         return account.getIdentityKeyStore().getIdentities().stream().map(this::toIdentity).toList();
1029     }
1030
1031     private Identity toIdentity(final IdentityInfo identityInfo) {
1032         if (identityInfo == null) {
1033             return null;
1034         }
1035
1036         final var address = account.getRecipientAddressResolver()
1037                 .resolveRecipientAddress(identityInfo.getRecipientId());
1038         final var scannableFingerprint = context.getIdentityHelper()
1039                 .computeSafetyNumberForScanning(identityInfo.getRecipientId(), identityInfo.getIdentityKey());
1040         return new Identity(address,
1041                 identityInfo.getIdentityKey(),
1042                 context.getIdentityHelper()
1043                         .computeSafetyNumber(identityInfo.getRecipientId(), identityInfo.getIdentityKey()),
1044                 scannableFingerprint == null ? null : scannableFingerprint.getSerialized(),
1045                 identityInfo.getTrustLevel(),
1046                 identityInfo.getDateAdded());
1047     }
1048
1049     @Override
1050     public List<Identity> getIdentities(RecipientIdentifier.Single recipient) {
1051         IdentityInfo identity;
1052         try {
1053             identity = account.getIdentityKeyStore()
1054                     .getIdentityInfo(context.getRecipientHelper().resolveRecipient(recipient));
1055         } catch (UnregisteredRecipientException e) {
1056             identity = null;
1057         }
1058         return identity == null ? List.of() : List.of(toIdentity(identity));
1059     }
1060
1061     @Override
1062     public boolean trustIdentityVerified(
1063             RecipientIdentifier.Single recipient, byte[] fingerprint
1064     ) throws UnregisteredRecipientException {
1065         return trustIdentity(recipient, r -> context.getIdentityHelper().trustIdentityVerified(r, fingerprint));
1066     }
1067
1068     @Override
1069     public boolean trustIdentityVerifiedSafetyNumber(
1070             RecipientIdentifier.Single recipient, String safetyNumber
1071     ) throws UnregisteredRecipientException {
1072         return trustIdentity(recipient,
1073                 r -> context.getIdentityHelper().trustIdentityVerifiedSafetyNumber(r, safetyNumber));
1074     }
1075
1076     @Override
1077     public boolean trustIdentityVerifiedSafetyNumber(
1078             RecipientIdentifier.Single recipient, byte[] safetyNumber
1079     ) throws UnregisteredRecipientException {
1080         return trustIdentity(recipient,
1081                 r -> context.getIdentityHelper().trustIdentityVerifiedSafetyNumber(r, safetyNumber));
1082     }
1083
1084     @Override
1085     public boolean trustIdentityAllKeys(RecipientIdentifier.Single recipient) throws UnregisteredRecipientException {
1086         return trustIdentity(recipient, r -> context.getIdentityHelper().trustIdentityAllKeys(r));
1087     }
1088
1089     private boolean trustIdentity(
1090             RecipientIdentifier.Single recipient, Function<RecipientId, Boolean> trustMethod
1091     ) throws UnregisteredRecipientException {
1092         final var recipientId = context.getRecipientHelper().resolveRecipient(recipient);
1093         final var updated = trustMethod.apply(recipientId);
1094         if (updated && this.isReceiving()) {
1095             context.getReceiveHelper().setNeedsToRetryFailedMessages(true);
1096         }
1097         return updated;
1098     }
1099
1100     @Override
1101     public void addAddressChangedListener(final Runnable listener) {
1102         synchronized (addressChangedListeners) {
1103             addressChangedListeners.add(listener);
1104         }
1105     }
1106
1107     @Override
1108     public void addClosedListener(final Runnable listener) {
1109         synchronized (closedListeners) {
1110             closedListeners.add(listener);
1111         }
1112     }
1113
1114     @Override
1115     public void close() {
1116         Thread thread;
1117         synchronized (messageHandlers) {
1118             weakHandlers.clear();
1119             messageHandlers.clear();
1120             thread = receiveThread;
1121             receiveThread = null;
1122         }
1123         if (thread != null) {
1124             stopReceiveThread(thread);
1125         }
1126         executor.shutdown();
1127
1128         dependencies.getSignalWebSocket().disconnect();
1129         disposable.dispose();
1130
1131         if (account != null) {
1132             account.close();
1133         }
1134
1135         synchronized (closedListeners) {
1136             closedListeners.forEach(Runnable::run);
1137             closedListeners.clear();
1138         }
1139
1140         account = null;
1141     }
1142 }