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.AlreadyReceivingException;
  20 import org.asamk.signal.manager.api.AttachmentInvalidException;
  21 import org.asamk.signal.manager.api.Configuration;
  22 import org.asamk.signal.manager.api.Device;
  23 import org.asamk.signal.manager.api.Group;
  24 import org.asamk.signal.manager.api.Identity;
  25 import org.asamk.signal.manager.api.InactiveGroupLinkException;
  26 import org.asamk.signal.manager.api.InvalidDeviceLinkException;
  27 import org.asamk.signal.manager.api.InvalidStickerException;
  28 import org.asamk.signal.manager.api.InvalidUsernameException;
  29 import org.asamk.signal.manager.api.Message;
  30 import org.asamk.signal.manager.api.MessageEnvelope;
  31 import org.asamk.signal.manager.api.NotPrimaryDeviceException;
  32 import org.asamk.signal.manager.api.Pair;
  33 import org.asamk.signal.manager.api.PendingAdminApprovalException;
  34 import org.asamk.signal.manager.api.ReceiveConfig;
  35 import org.asamk.signal.manager.api.Recipient;
  36 import org.asamk.signal.manager.api.RecipientIdentifier;
  37 import org.asamk.signal.manager.api.SendGroupMessageResults;
  38 import org.asamk.signal.manager.api.SendMessageResult;
  39 import org.asamk.signal.manager.api.SendMessageResults;
  40 import org.asamk.signal.manager.api.StickerPackId;
  41 import org.asamk.signal.manager.api.StickerPackInvalidException;
  42 import org.asamk.signal.manager.api.StickerPackUrl;
  43 import org.asamk.signal.manager.api.TypingAction;
  44 import org.asamk.signal.manager.api.UnregisteredRecipientException;
  45 import org.asamk.signal.manager.api.UpdateGroup;
  46 import org.asamk.signal.manager.api.UpdateProfile;
  47 import org.asamk.signal.manager.api.UserStatus;
  48 import org.asamk.signal.manager.config.ServiceEnvironmentConfig;
  49 import org.asamk.signal.manager.groups.GroupId;
  50 import org.asamk.signal.manager.groups.GroupInviteLinkUrl;
  51 import org.asamk.signal.manager.groups.GroupNotFoundException;
  52 import org.asamk.signal.manager.groups.GroupSendingNotAllowedException;
  53 import org.asamk.signal.manager.groups.LastGroupAdminException;
  54 import org.asamk.signal.manager.groups.NotAGroupMemberException;
  55 import org.asamk.signal.manager.helper.AccountFileUpdater;
  56 import org.asamk.signal.manager.helper.Context;
  57 import org.asamk.signal.manager.storage.SignalAccount;
  58 import org.asamk.signal.manager.storage.groups.GroupInfo;
  59 import org.asamk.signal.manager.storage.identities.IdentityInfo;
  60 import org.asamk.signal.manager.storage.recipients.Profile;
  61 import org.asamk.signal.manager.storage.recipients.RecipientId;
  62 import org.asamk.signal.manager.storage.stickerPacks.JsonStickerPack;
  63 import org.asamk.signal.manager.storage.stickerPacks.StickerPackStore;
  64 import org.asamk.signal.manager.storage.stickers.StickerPack;
  65 import org.asamk.signal.manager.util.AttachmentUtils;
  66 import org.asamk.signal.manager.util.KeyUtils;
  67 import org.asamk.signal.manager.util.MimeUtils;
  68 import org.asamk.signal.manager.util.StickerUtils;
  69 import org.signal.libsignal.usernames.BaseUsernameException;
  70 import org.slf4j.Logger;
  71 import org.slf4j.LoggerFactory;
  72 import org.whispersystems.signalservice.api.SignalSessionLock;
  73 import org.whispersystems.signalservice.api.messages.SignalServiceDataMessage;
  74 import org.whispersystems.signalservice.api.messages.SignalServicePreview;
  75 import org.whispersystems.signalservice.api.messages.SignalServiceReceiptMessage;
  76 import org.whispersystems.signalservice.api.messages.SignalServiceTypingMessage;
  77 import org.whispersystems.signalservice.api.push.ACI;
  78 import org.whispersystems.signalservice.api.push.ServiceId;
  79 import org.whispersystems.signalservice.api.util.DeviceNameUtil;
  80 import org.whispersystems.signalservice.api.util.InvalidNumberException;
  81 import org.whispersystems.signalservice.api.util.PhoneNumberFormatter;
  82 import org.whispersystems.signalservice.api.util.StreamDetails;
  83 import org.whispersystems.signalservice.internal.util.Hex;
  84 import org.whispersystems.signalservice.internal.util.Util;
  85
  86 import java.io.ByteArrayInputStream;
  87 import java.io.File;
  88 import java.io.IOException;
  89 import java.io.InputStream;
  90 import java.net.URI;
  91 import java.nio.charset.StandardCharsets;
  92 import java.time.Duration;
  93 import java.util.ArrayList;
  94 import java.util.Collection;
  95 import java.util.HashMap;
  96 import java.util.HashSet;
  97 import java.util.List;
  98 import java.util.Map;
  99 import java.util.Objects;
 100 import java.util.Optional;
 101 import java.util.Set;
 102 import java.util.concurrent.ExecutorService;
 103 import java.util.concurrent.Executors;
 104 import java.util.concurrent.atomic.AtomicInteger;
 105 import java.util.concurrent.locks.ReentrantLock;
 106 import java.util.function.Function;
 107 import java.util.stream.Collectors;
 108 import java.util.stream.Stream;
 109
 110 import io.reactivex.rxjava3.disposables.CompositeDisposable;
 111
 112 class ManagerImpl implements Manager {
 113
 114     private final static Logger logger = LoggerFactory.getLogger(ManagerImpl.class);
 115
 116     private SignalAccount account;
 117     private final SignalDependencies dependencies;
 118     private final Context context;
 119
 120     private final ExecutorService executor = Executors.newCachedThreadPool();
 121
 122     private Thread receiveThread;
 123     private boolean isReceivingSynchronous;
 124     private final Set<ReceiveMessageHandler> weakHandlers = new HashSet<>();
 125     private final Set<ReceiveMessageHandler> messageHandlers = new HashSet<>();
 126     private final List<Runnable> closedListeners = new ArrayList<>();
 127     private final List<Runnable> addressChangedListeners = new ArrayList<>();
 128     private final CompositeDisposable disposable = new CompositeDisposable();
 129
 130     ManagerImpl(
 131             SignalAccount account,
 132             PathConfig pathConfig,
 133             AccountFileUpdater accountFileUpdater,
 134             ServiceEnvironmentConfig serviceEnvironmentConfig,
 135             String userAgent
 136     ) {
 137         this.account = account;
 138
 139         final var sessionLock = new SignalSessionLock() {
 140             private final ReentrantLock LEGACY_LOCK = new ReentrantLock();
 141
 142             @Override
 143             public Lock acquire() {
 144                 LEGACY_LOCK.lock();
 145                 return LEGACY_LOCK::unlock;
 146             }
 147         };
 148         this.dependencies = new SignalDependencies(serviceEnvironmentConfig,
 149                 userAgent,
 150                 account.getCredentialsProvider(),
 151                 account.getSignalServiceDataStore(),
 152                 executor,
 153                 sessionLock);
 154         final var avatarStore = new AvatarStore(pathConfig.avatarsPath());
 155         final var attachmentStore = new AttachmentStore(pathConfig.attachmentsPath());
 156         final var stickerPackStore = new StickerPackStore(pathConfig.stickerPacksPath());
 157
 158         this.context = new Context(account, new AccountFileUpdater() {
 159             @Override
 160             public void updateAccountIdentifiers(final String number, final ACI aci) {
 161                 accountFileUpdater.updateAccountIdentifiers(number, aci);
 162                 synchronized (addressChangedListeners) {
 163                     addressChangedListeners.forEach(Runnable::run);
 164                 }
 165             }
 166
 167             @Override
 168             public void removeAccount() {
 169                 accountFileUpdater.removeAccount();
 170             }
 171         }, dependencies, avatarStore, attachmentStore, stickerPackStore);
 172         this.context.getAccountHelper().setUnregisteredListener(this::close);
 173         this.context.getReceiveHelper().setAuthenticationFailureListener(this::close);
 174         this.context.getReceiveHelper().setCaughtUpWithOldMessagesListener(() -> {
 175             synchronized (this) {
 176                 this.notifyAll();
 177             }
 178         });
 179         disposable.add(account.getIdentityKeyStore().getIdentityChanges().subscribe(serviceId -> {
 180             logger.trace("Archiving old sessions for {}", serviceId);
 181             account.getAciSessionStore().archiveSessions(serviceId);
 182             account.getPniSessionStore().archiveSessions(serviceId);
 183             account.getSenderKeyStore().deleteSharedWith(serviceId);
 184             final var recipientId = account.getRecipientResolver().resolveRecipient(serviceId);
 185             final var profile = account.getProfileStore().getProfile(recipientId);
 186             if (profile != null) {
 187                 account.getProfileStore()
 188                         .storeProfile(recipientId,
 189                                 Profile.newBuilder(profile)
 190                                         .withUnidentifiedAccessMode(Profile.UnidentifiedAccessMode.UNKNOWN)
 191                                         .withLastUpdateTimestamp(0)
 192                                         .build());
 193             }
 194         }));
 195     }
 196
 197     @Override
 198     public String getSelfNumber() {
 199         return account.getNumber();
 200     }
 201
 202     void checkAccountState() throws IOException {
 203         context.getAccountHelper().checkAccountState();
 204     }
 205
 206     @Override
 207     public Map<String, UserStatus> getUserStatus(Set<String> numbers) throws IOException {
 208         final var canonicalizedNumbers = numbers.stream().collect(Collectors.toMap(n -> n, n -> {
 209             try {
 210                 final var canonicalizedNumber = PhoneNumberFormatter.formatNumber(n, account.getNumber());
 211                 if (!canonicalizedNumber.equals(n)) {
 212                     logger.debug("Normalized number {} to {}.", n, canonicalizedNumber);
 213                 }
 214                 return canonicalizedNumber;
 215             } catch (InvalidNumberException e) {
 216                 return "";
 217             }
 218         }));
 219
 220         // Note "registeredUsers" has no optionals. It only gives us info on users who are registered
 221         final var canonicalizedNumbersSet = canonicalizedNumbers.values()
 222                 .stream()
 223                 .filter(s -> !s.isEmpty())
 224                 .collect(Collectors.toSet());
 225         final var registeredUsers = context.getRecipientHelper().getRegisteredUsers(canonicalizedNumbersSet);
 226
 227         return numbers.stream().collect(Collectors.toMap(n -> n, n -> {
 228             final var number = canonicalizedNumbers.get(n);
 229             final var user = registeredUsers.get(number);
 230             final var serviceId = user == null ? null : user.getServiceId();
 231             final var profile = serviceId == null
 232                     ? null
 233                     : context.getProfileHelper()
 234                             .getRecipientProfile(account.getRecipientResolver().resolveRecipient(serviceId));
 235             return new UserStatus(number.isEmpty() ? null : number,
 236                     serviceId == null ? null : serviceId.uuid(),
 237                     profile != null
 238                             && profile.getUnidentifiedAccessMode() == Profile.UnidentifiedAccessMode.UNRESTRICTED);
 239         }));
 240     }
 241
 242     @Override
 243     public void updateAccountAttributes(String deviceName) throws IOException {
 244         if (deviceName != null) {
 245             context.getAccountHelper().setDeviceName(deviceName);
 246         }
 247         context.getAccountHelper().updateAccountAttributes();
 248         context.getAccountHelper().checkWhoAmiI();
 249     }
 250
 251     @Override
 252     public Configuration getConfiguration() {
 253         final var configurationStore = account.getConfigurationStore();
 254         return Configuration.from(configurationStore);
 255     }
 256
 257     @Override
 258     public void updateConfiguration(
 259             Configuration configuration
 260     ) throws NotPrimaryDeviceException {
 261         if (!account.isPrimaryDevice()) {
 262             throw new NotPrimaryDeviceException();
 263         }
 264
 265         final var configurationStore = account.getConfigurationStore();
 266         if (configuration.readReceipts().isPresent()) {
 267             configurationStore.setReadReceipts(configuration.readReceipts().get());
 268         }
 269         if (configuration.unidentifiedDeliveryIndicators().isPresent()) {
 270             configurationStore.setUnidentifiedDeliveryIndicators(configuration.unidentifiedDeliveryIndicators().get());
 271         }
 272         if (configuration.typingIndicators().isPresent()) {
 273             configurationStore.setTypingIndicators(configuration.typingIndicators().get());
 274         }
 275         if (configuration.linkPreviews().isPresent()) {
 276             configurationStore.setLinkPreviews(configuration.linkPreviews().get());
 277         }
 278         context.getSyncHelper().sendConfigurationMessage();
 279     }
 280
 281     @Override
 282     public void updateProfile(UpdateProfile updateProfile) throws IOException {
 283         context.getProfileHelper()
 284                 .setProfile(updateProfile.getGivenName(),
 285                         updateProfile.getFamilyName(),
 286                         updateProfile.getAbout(),
 287                         updateProfile.getAboutEmoji(),
 288                         updateProfile.isDeleteAvatar()
 289                                 ? Optional.empty()
 290                                 : updateProfile.getAvatar() == null ? null : Optional.of(updateProfile.getAvatar()),
 291                         updateProfile.getMobileCoinAddress());
 292         context.getSyncHelper().sendSyncFetchProfileMessage();
 293     }
 294
 295     void refreshCurrentUsername() throws IOException, BaseUsernameException {
 296         context.getAccountHelper().refreshCurrentUsername();
 297     }
 298
 299     @Override
 300     public String setUsername(final String username) throws IOException, InvalidUsernameException {
 301         try {
 302             return context.getAccountHelper().reserveUsername(username);
 303         } catch (BaseUsernameException e) {
 304             throw new InvalidUsernameException(e.getMessage() + " (" + e.getClass().getSimpleName() + ")", e);
 305         }
 306     }
 307
 308     @Override
 309     public void deleteUsername() throws IOException {
 310         context.getAccountHelper().deleteUsername();
 311     }
 312
 313     @Override
 314     public void unregister() throws IOException {
 315         context.getAccountHelper().unregister();
 316     }
 317
 318     @Override
 319     public void deleteAccount() throws IOException {
 320         context.getAccountHelper().deleteAccount();
 321     }
 322
 323     @Override
 324     public void submitRateLimitRecaptchaChallenge(String challenge, String captcha) throws IOException {
 325         captcha = captcha == null ? null : captcha.replace("signalcaptcha://", "");
 326
 327         dependencies.getAccountManager().submitRateLimitRecaptchaChallenge(challenge, captcha);
 328     }
 329
 330     @Override
 331     public List<Device> getLinkedDevices() throws IOException {
 332         var devices = dependencies.getAccountManager().getDevices();
 333         account.setMultiDevice(devices.size() > 1);
 334         var identityKey = account.getAciIdentityKeyPair().getPrivateKey();
 335         return devices.stream().map(d -> {
 336             String deviceName = d.getName();
 337             if (deviceName != null) {
 338                 try {
 339                     deviceName = DeviceNameUtil.decryptDeviceName(deviceName, identityKey);
 340                 } catch (IOException e) {
 341                     logger.debug("Failed to decrypt device name, maybe plain text?", e);
 342                 }
 343             }
 344             return new Device(d.getId(),
 345                     deviceName,
 346                     d.getCreated(),
 347                     d.getLastSeen(),
 348                     d.getId() == account.getDeviceId());
 349         }).toList();
 350     }
 351
 352     @Override
 353     public void removeLinkedDevices(int deviceId) throws IOException {
 354         context.getAccountHelper().removeLinkedDevices(deviceId);
 355     }
 356
 357     @Override
 358     public void addDeviceLink(URI linkUri) throws IOException, InvalidDeviceLinkException {
 359         var deviceLinkInfo = DeviceLinkInfo.parseDeviceLinkUri(linkUri);
 360         context.getAccountHelper().addDevice(deviceLinkInfo);
 361     }
 362
 363     @Override
 364     public void setRegistrationLockPin(Optional<String> pin) throws IOException, NotPrimaryDeviceException {
 365         if (!account.isPrimaryDevice()) {
 366             throw new NotPrimaryDeviceException();
 367         }
 368         if (pin.isPresent()) {
 369             context.getAccountHelper().setRegistrationPin(pin.get());
 370         } else {
 371             context.getAccountHelper().removeRegistrationPin();
 372         }
 373     }
 374
 375     void refreshPreKeys() throws IOException {
 376         context.getPreKeyHelper().refreshPreKeys();
 377     }
 378
 379     @Override
 380     public Profile getRecipientProfile(RecipientIdentifier.Single recipient) throws UnregisteredRecipientException {
 381         return context.getProfileHelper().getRecipientProfile(context.getRecipientHelper().resolveRecipient(recipient));
 382     }
 383
 384     @Override
 385     public List<Group> getGroups() {
 386         return account.getGroupStore().getGroups().stream().map(this::toGroup).toList();
 387     }
 388
 389     private Group toGroup(final GroupInfo groupInfo) {
 390         if (groupInfo == null) {
 391             return null;
 392         }
 393
 394         return Group.from(groupInfo, account.getRecipientAddressResolver(), account.getSelfRecipientId());
 395     }
 396
 397     @Override
 398     public SendGroupMessageResults quitGroup(
 399             GroupId groupId, Set<RecipientIdentifier.Single> groupAdmins
 400     ) throws GroupNotFoundException, IOException, NotAGroupMemberException, LastGroupAdminException, UnregisteredRecipientException {
 401         final var newAdmins = context.getRecipientHelper().resolveRecipients(groupAdmins);
 402         return context.getGroupHelper().quitGroup(groupId, newAdmins);
 403     }
 404
 405     @Override
 406     public void deleteGroup(GroupId groupId) throws IOException {
 407         final var group = context.getGroupHelper().getGroup(groupId);
 408         if (group.isMember(account.getSelfRecipientId())) {
 409             throw new IOException(
 410                     "The local group information cannot be removed, as the user is still a member of the group");
 411         }
 412         context.getGroupHelper().deleteGroup(groupId);
 413     }
 414
 415     @Override
 416     public Pair<GroupId, SendGroupMessageResults> createGroup(
 417             String name, Set<RecipientIdentifier.Single> members, String avatarFile
 418     ) throws IOException, AttachmentInvalidException, UnregisteredRecipientException {
 419         return context.getGroupHelper()
 420                 .createGroup(name,
 421                         members == null ? null : context.getRecipientHelper().resolveRecipients(members),
 422                         avatarFile);
 423     }
 424
 425     @Override
 426     public SendGroupMessageResults updateGroup(
 427             final GroupId groupId, final UpdateGroup updateGroup
 428     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException, GroupSendingNotAllowedException, UnregisteredRecipientException {
 429         return context.getGroupHelper()
 430                 .updateGroup(groupId,
 431                         updateGroup.getName(),
 432                         updateGroup.getDescription(),
 433                         updateGroup.getMembers() == null
 434                                 ? null
 435                                 : context.getRecipientHelper().resolveRecipients(updateGroup.getMembers()),
 436                         updateGroup.getRemoveMembers() == null
 437                                 ? null
 438                                 : context.getRecipientHelper().resolveRecipients(updateGroup.getRemoveMembers()),
 439                         updateGroup.getAdmins() == null
 440                                 ? null
 441                                 : context.getRecipientHelper().resolveRecipients(updateGroup.getAdmins()),
 442                         updateGroup.getRemoveAdmins() == null
 443                                 ? null
 444                                 : context.getRecipientHelper().resolveRecipients(updateGroup.getRemoveAdmins()),
 445                         updateGroup.getBanMembers() == null
 446                                 ? null
 447                                 : context.getRecipientHelper().resolveRecipients(updateGroup.getBanMembers()),
 448                         updateGroup.getUnbanMembers() == null
 449                                 ? null
 450                                 : context.getRecipientHelper().resolveRecipients(updateGroup.getUnbanMembers()),
 451                         updateGroup.isResetGroupLink(),
 452                         updateGroup.getGroupLinkState(),
 453                         updateGroup.getAddMemberPermission(),
 454                         updateGroup.getEditDetailsPermission(),
 455                         updateGroup.getAvatarFile(),
 456                         updateGroup.getExpirationTimer(),
 457                         updateGroup.getIsAnnouncementGroup());
 458     }
 459
 460     @Override
 461     public Pair<GroupId, SendGroupMessageResults> joinGroup(
 462             GroupInviteLinkUrl inviteLinkUrl
 463     ) throws IOException, InactiveGroupLinkException, PendingAdminApprovalException {
 464         return context.getGroupHelper().joinGroup(inviteLinkUrl);
 465     }
 466
 467     private SendMessageResults sendMessage(
 468             SignalServiceDataMessage.Builder messageBuilder, Set<RecipientIdentifier> recipients
 469     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException {
 470         var results = new HashMap<RecipientIdentifier, List<SendMessageResult>>();
 471         long timestamp = System.currentTimeMillis();
 472         messageBuilder.withTimestamp(timestamp);
 473         for (final var recipient : recipients) {
 474             if (recipient instanceof RecipientIdentifier.Single single) {
 475                 try {
 476                     final var recipientId = context.getRecipientHelper().resolveRecipient(single);
 477                     final var result = context.getSendHelper().sendMessage(messageBuilder, 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.NoteToSelf) {
 484                 final var result = context.getSendHelper().sendSelfMessage(messageBuilder);
 485                 results.put(recipient, List.of(toSendMessageResult(result)));
 486             } else if (recipient instanceof RecipientIdentifier.Group group) {
 487                 final var result = context.getSendHelper().sendAsGroupMessage(messageBuilder, group.groupId());
 488                 results.put(recipient, result.stream().map(this::toSendMessageResult).toList());
 489             }
 490         }
 491         return new SendMessageResults(timestamp, results);
 492     }
 493
 494     private SendMessageResult toSendMessageResult(final org.whispersystems.signalservice.api.messages.SendMessageResult result) {
 495         return SendMessageResult.from(result, account.getRecipientResolver(), account.getRecipientAddressResolver());
 496     }
 497
 498     private SendMessageResults sendTypingMessage(
 499             SignalServiceTypingMessage.Action action, Set<RecipientIdentifier> recipients
 500     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException {
 501         var results = new HashMap<RecipientIdentifier, List<SendMessageResult>>();
 502         final var timestamp = System.currentTimeMillis();
 503         for (var recipient : recipients) {
 504             if (recipient instanceof RecipientIdentifier.Single single) {
 505                 final var message = new SignalServiceTypingMessage(action, timestamp, Optional.empty());
 506                 try {
 507                     final var recipientId = context.getRecipientHelper().resolveRecipient(single);
 508                     final var result = context.getSendHelper().sendTypingMessage(message, recipientId);
 509                     results.put(recipient, List.of(toSendMessageResult(result)));
 510                 } catch (UnregisteredRecipientException e) {
 511                     results.put(recipient,
 512                             List.of(SendMessageResult.unregisteredFailure(single.toPartialRecipientAddress())));
 513                 }
 514             } else if (recipient instanceof RecipientIdentifier.Group) {
 515                 final var groupId = ((RecipientIdentifier.Group) recipient).groupId();
 516                 final var message = new SignalServiceTypingMessage(action, timestamp, Optional.of(groupId.serialize()));
 517                 final var result = context.getSendHelper().sendGroupTypingMessage(message, groupId);
 518                 results.put(recipient, result.stream().map(this::toSendMessageResult).toList());
 519             }
 520         }
 521         return new SendMessageResults(timestamp, results);
 522     }
 523
 524     @Override
 525     public SendMessageResults sendTypingMessage(
 526             TypingAction action, Set<RecipientIdentifier> recipients
 527     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException {
 528         return sendTypingMessage(action.toSignalService(), recipients);
 529     }
 530
 531     @Override
 532     public SendMessageResults sendReadReceipt(
 533             RecipientIdentifier.Single sender, List<Long> messageIds
 534     ) {
 535         final var timestamp = System.currentTimeMillis();
 536         var receiptMessage = new SignalServiceReceiptMessage(SignalServiceReceiptMessage.Type.READ,
 537                 messageIds,
 538                 timestamp);
 539
 540         return sendReceiptMessage(sender, timestamp, receiptMessage);
 541     }
 542
 543     @Override
 544     public SendMessageResults sendViewedReceipt(
 545             RecipientIdentifier.Single sender, List<Long> messageIds
 546     ) {
 547         final var timestamp = System.currentTimeMillis();
 548         var receiptMessage = new SignalServiceReceiptMessage(SignalServiceReceiptMessage.Type.VIEWED,
 549                 messageIds,
 550                 timestamp);
 551
 552         return sendReceiptMessage(sender, timestamp, receiptMessage);
 553     }
 554
 555     private SendMessageResults sendReceiptMessage(
 556             final RecipientIdentifier.Single sender,
 557             final long timestamp,
 558             final SignalServiceReceiptMessage receiptMessage
 559     ) {
 560         try {
 561             final var result = context.getSendHelper()
 562                     .sendReceiptMessage(receiptMessage, context.getRecipientHelper().resolveRecipient(sender));
 563             return new SendMessageResults(timestamp, Map.of(sender, List.of(toSendMessageResult(result))));
 564         } catch (UnregisteredRecipientException e) {
 565             return new SendMessageResults(timestamp,
 566                     Map.of(sender, List.of(SendMessageResult.unregisteredFailure(sender.toPartialRecipientAddress()))));
 567         }
 568     }
 569
 570     @Override
 571     public SendMessageResults sendMessage(
 572             Message message, Set<RecipientIdentifier> recipients
 573     ) throws IOException, AttachmentInvalidException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException, UnregisteredRecipientException, InvalidStickerException {
 574         final var selfProfile = context.getProfileHelper().getSelfProfile();
 575         if (selfProfile == null || selfProfile.getDisplayName().isEmpty()) {
 576             logger.warn(
 577                     "No profile name set. When sending a message it's recommended to set a profile name with the updateProfile command. This may become mandatory in the future.");
 578         }
 579         final var messageBuilder = SignalServiceDataMessage.newBuilder();
 580         applyMessage(messageBuilder, message);
 581         return sendMessage(messageBuilder, recipients);
 582     }
 583
 584     private void applyMessage(
 585             final SignalServiceDataMessage.Builder messageBuilder, final Message message
 586     ) throws AttachmentInvalidException, IOException, UnregisteredRecipientException, InvalidStickerException {
 587         if (message.messageText().length() > 2000) {
 588             final var messageBytes = message.messageText().getBytes(StandardCharsets.UTF_8);
 589             final var textAttachment = AttachmentUtils.createAttachmentStream(new StreamDetails(new ByteArrayInputStream(
 590                     messageBytes), MimeUtils.LONG_TEXT, messageBytes.length), Optional.empty());
 591             messageBuilder.withBody(message.messageText().substring(0, 2000));
 592             messageBuilder.withAttachment(context.getAttachmentHelper().uploadAttachment(textAttachment));
 593         } else {
 594             messageBuilder.withBody(message.messageText());
 595         }
 596         if (message.attachments().size() > 0) {
 597             messageBuilder.withAttachments(context.getAttachmentHelper().uploadAttachments(message.attachments()));
 598         }
 599         if (message.mentions().size() > 0) {
 600             messageBuilder.withMentions(resolveMentions(message.mentions()));
 601         }
 602         if (message.quote().isPresent()) {
 603             final var quote = message.quote().get();
 604             messageBuilder.withQuote(new SignalServiceDataMessage.Quote(quote.timestamp(),
 605                     context.getRecipientHelper()
 606                             .resolveSignalServiceAddress(context.getRecipientHelper().resolveRecipient(quote.author()))
 607                             .getServiceId(),
 608                     quote.message(),
 609                     List.of(),
 610                     resolveMentions(quote.mentions()),
 611                     SignalServiceDataMessage.Quote.Type.NORMAL,
 612                     List.of()));
 613         }
 614         if (message.sticker().isPresent()) {
 615             final var sticker = message.sticker().get();
 616             final var packId = StickerPackId.deserialize(sticker.packId());
 617             final var stickerId = sticker.stickerId();
 618
 619             final var stickerPack = context.getAccount().getStickerStore().getStickerPack(packId);
 620             if (stickerPack == null) {
 621                 throw new InvalidStickerException("Sticker pack not found");
 622             }
 623             final var manifest = context.getStickerHelper().getOrRetrieveStickerPack(packId, stickerPack.packKey());
 624             if (manifest.stickers().size() <= stickerId) {
 625                 throw new InvalidStickerException("Sticker id not part of this pack");
 626             }
 627             final var manifestSticker = manifest.stickers().get(stickerId);
 628             final var streamDetails = context.getStickerPackStore().retrieveSticker(packId, stickerId);
 629             if (streamDetails == null) {
 630                 throw new InvalidStickerException("Missing local sticker file");
 631             }
 632             messageBuilder.withSticker(new SignalServiceDataMessage.Sticker(packId.serialize(),
 633                     stickerPack.packKey(),
 634                     stickerId,
 635                     manifestSticker.emoji(),
 636                     AttachmentUtils.createAttachmentStream(streamDetails, Optional.empty())));
 637         }
 638         if (message.previews().size() > 0) {
 639             final var previews = new ArrayList<SignalServicePreview>(message.previews().size());
 640             for (final var p : message.previews()) {
 641                 final var image = p.image().isPresent() ? context.getAttachmentHelper()
 642                         .uploadAttachment(p.image().get()) : null;
 643                 previews.add(new SignalServicePreview(p.url(),
 644                         p.title(),
 645                         p.description(),
 646                         0,
 647                         Optional.ofNullable(image)));
 648             }
 649             messageBuilder.withPreviews(previews);
 650         }
 651         if (message.storyReply().isPresent()) {
 652             final var storyReply = message.storyReply().get();
 653             final var authorServiceId = context.getRecipientHelper()
 654                     .resolveSignalServiceAddress(context.getRecipientHelper().resolveRecipient(storyReply.author()))
 655                     .getServiceId();
 656             messageBuilder.withStoryContext(new SignalServiceDataMessage.StoryContext(authorServiceId,
 657                     storyReply.timestamp()));
 658         }
 659     }
 660
 661     private ArrayList<SignalServiceDataMessage.Mention> resolveMentions(final List<Message.Mention> mentionList) throws UnregisteredRecipientException {
 662         final var mentions = new ArrayList<SignalServiceDataMessage.Mention>();
 663         for (final var m : mentionList) {
 664             final var recipientId = context.getRecipientHelper().resolveRecipient(m.recipient());
 665             mentions.add(new SignalServiceDataMessage.Mention(context.getRecipientHelper()
 666                     .resolveSignalServiceAddress(recipientId)
 667                     .getServiceId(), m.start(), m.length()));
 668         }
 669         return mentions;
 670     }
 671
 672     @Override
 673     public SendMessageResults sendRemoteDeleteMessage(
 674             long targetSentTimestamp, Set<RecipientIdentifier> recipients
 675     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException {
 676         var delete = new SignalServiceDataMessage.RemoteDelete(targetSentTimestamp);
 677         final var messageBuilder = SignalServiceDataMessage.newBuilder().withRemoteDelete(delete);
 678         for (final var recipient : recipients) {
 679             if (recipient instanceof RecipientIdentifier.Single r) {
 680                 try {
 681                     final var recipientId = context.getRecipientHelper().resolveRecipient(r);
 682                     account.getMessageSendLogStore()
 683                             .deleteEntryForRecipientNonGroup(targetSentTimestamp,
 684                                     account.getRecipientAddressResolver()
 685                                             .resolveRecipientAddress(recipientId)
 686                                             .getServiceId());
 687                 } catch (UnregisteredRecipientException ignored) {
 688                 }
 689             } else if (recipient instanceof RecipientIdentifier.Group r) {
 690                 account.getMessageSendLogStore().deleteEntryForGroup(targetSentTimestamp, r.groupId());
 691             }
 692         }
 693         return sendMessage(messageBuilder, recipients);
 694     }
 695
 696     @Override
 697     public SendMessageResults sendMessageReaction(
 698             String emoji,
 699             boolean remove,
 700             RecipientIdentifier.Single targetAuthor,
 701             long targetSentTimestamp,
 702             Set<RecipientIdentifier> recipients,
 703             final boolean isStory
 704     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException, UnregisteredRecipientException {
 705         var targetAuthorRecipientId = context.getRecipientHelper().resolveRecipient(targetAuthor);
 706         final var authorServiceId = context.getRecipientHelper()
 707                 .resolveSignalServiceAddress(targetAuthorRecipientId)
 708                 .getServiceId();
 709         var reaction = new SignalServiceDataMessage.Reaction(emoji, remove, authorServiceId, targetSentTimestamp);
 710         final var messageBuilder = SignalServiceDataMessage.newBuilder().withReaction(reaction);
 711         if (isStory) {
 712             messageBuilder.withStoryContext(new SignalServiceDataMessage.StoryContext(authorServiceId,
 713                     targetSentTimestamp));
 714         }
 715         return sendMessage(messageBuilder, recipients);
 716     }
 717
 718     @Override
 719     public SendMessageResults sendPaymentNotificationMessage(
 720             byte[] receipt, String note, RecipientIdentifier.Single recipient
 721     ) throws IOException {
 722         final var paymentNotification = new SignalServiceDataMessage.PaymentNotification(receipt, note);
 723         final var payment = new SignalServiceDataMessage.Payment(paymentNotification, null);
 724         final var messageBuilder = SignalServiceDataMessage.newBuilder().withPayment(payment);
 725         try {
 726             return sendMessage(messageBuilder, Set.of(recipient));
 727         } catch (NotAGroupMemberException | GroupNotFoundException | GroupSendingNotAllowedException e) {
 728             throw new AssertionError(e);
 729         }
 730     }
 731
 732     @Override
 733     public SendMessageResults sendEndSessionMessage(Set<RecipientIdentifier.Single> recipients) throws IOException {
 734         var messageBuilder = SignalServiceDataMessage.newBuilder().asEndSessionMessage();
 735
 736         try {
 737             return sendMessage(messageBuilder,
 738                     recipients.stream().map(RecipientIdentifier.class::cast).collect(Collectors.toSet()));
 739         } catch (GroupNotFoundException | NotAGroupMemberException | GroupSendingNotAllowedException e) {
 740             throw new AssertionError(e);
 741         } finally {
 742             for (var recipient : recipients) {
 743                 final RecipientId recipientId;
 744                 try {
 745                     recipientId = context.getRecipientHelper().resolveRecipient(recipient);
 746                 } catch (UnregisteredRecipientException e) {
 747                     continue;
 748                 }
 749                 final var serviceId = context.getAccount()
 750                         .getRecipientAddressResolver()
 751                         .resolveRecipientAddress(recipientId)
 752                         .getServiceId();
 753                 account.getAciSessionStore().deleteAllSessions(serviceId);
 754             }
 755         }
 756     }
 757
 758     @Override
 759     public void deleteRecipient(final RecipientIdentifier.Single recipient) {
 760         final var recipientIdOptional = context.getRecipientHelper().resolveRecipientOptional(recipient);
 761         if (recipientIdOptional.isPresent()) {
 762             account.removeRecipient(recipientIdOptional.get());
 763         }
 764     }
 765
 766     @Override
 767     public void deleteContact(final RecipientIdentifier.Single recipient) {
 768         final var recipientIdOptional = context.getRecipientHelper().resolveRecipientOptional(recipient);
 769         if (recipientIdOptional.isPresent()) {
 770             account.getContactStore().deleteContact(recipientIdOptional.get());
 771         }
 772     }
 773
 774     @Override
 775     public void setContactName(
 776             RecipientIdentifier.Single recipient, String givenName, final String familyName
 777     ) throws NotPrimaryDeviceException, UnregisteredRecipientException {
 778         if (!account.isPrimaryDevice()) {
 779             throw new NotPrimaryDeviceException();
 780         }
 781         context.getContactHelper()
 782                 .setContactName(context.getRecipientHelper().resolveRecipient(recipient), givenName, familyName);
 783     }
 784
 785     @Override
 786     public void setContactsBlocked(
 787             Collection<RecipientIdentifier.Single> recipients, boolean blocked
 788     ) throws NotPrimaryDeviceException, IOException, UnregisteredRecipientException {
 789         if (!account.isPrimaryDevice()) {
 790             throw new NotPrimaryDeviceException();
 791         }
 792         if (recipients.size() == 0) {
 793             return;
 794         }
 795         final var recipientIds = context.getRecipientHelper().resolveRecipients(recipients);
 796         final var selfRecipientId = account.getSelfRecipientId();
 797         boolean shouldRotateProfileKey = false;
 798         for (final var recipientId : recipientIds) {
 799             if (context.getContactHelper().isContactBlocked(recipientId) == blocked) {
 800                 continue;
 801             }
 802             context.getContactHelper().setContactBlocked(recipientId, blocked);
 803             // if we don't have a common group with the blocked contact we need to rotate the profile key
 804             shouldRotateProfileKey = blocked && (
 805                     shouldRotateProfileKey || account.getGroupStore()
 806                             .getGroups()
 807                             .stream()
 808                             .noneMatch(g -> g.isMember(selfRecipientId) && g.isMember(recipientId))
 809             );
 810         }
 811         if (shouldRotateProfileKey) {
 812             context.getProfileHelper().rotateProfileKey();
 813         }
 814         context.getSyncHelper().sendBlockedList();
 815     }
 816
 817     @Override
 818     public void setGroupsBlocked(
 819             final Collection<GroupId> groupIds, final boolean blocked
 820     ) throws GroupNotFoundException, NotPrimaryDeviceException, IOException {
 821         if (!account.isPrimaryDevice()) {
 822             throw new NotPrimaryDeviceException();
 823         }
 824         if (groupIds.size() == 0) {
 825             return;
 826         }
 827         boolean shouldRotateProfileKey = false;
 828         for (final var groupId : groupIds) {
 829             if (context.getGroupHelper().isGroupBlocked(groupId) == blocked) {
 830                 continue;
 831             }
 832             context.getGroupHelper().setGroupBlocked(groupId, blocked);
 833             shouldRotateProfileKey = blocked;
 834         }
 835         if (shouldRotateProfileKey) {
 836             context.getProfileHelper().rotateProfileKey();
 837         }
 838         context.getSyncHelper().sendBlockedList();
 839     }
 840
 841     @Override
 842     public void setExpirationTimer(
 843             RecipientIdentifier.Single recipient, int messageExpirationTimer
 844     ) throws IOException, UnregisteredRecipientException {
 845         var recipientId = context.getRecipientHelper().resolveRecipient(recipient);
 846         context.getContactHelper().setExpirationTimer(recipientId, messageExpirationTimer);
 847         final var messageBuilder = SignalServiceDataMessage.newBuilder().asExpirationUpdate();
 848         try {
 849             sendMessage(messageBuilder, Set.of(recipient));
 850         } catch (NotAGroupMemberException | GroupNotFoundException | GroupSendingNotAllowedException e) {
 851             throw new AssertionError(e);
 852         }
 853     }
 854
 855     @Override
 856     public StickerPackUrl uploadStickerPack(File path) throws IOException, StickerPackInvalidException {
 857         var manifest = StickerUtils.getSignalServiceStickerManifestUpload(path);
 858
 859         var messageSender = dependencies.getMessageSender();
 860
 861         var packKey = KeyUtils.createStickerUploadKey();
 862         var packIdString = messageSender.uploadStickerManifest(manifest, packKey);
 863         var packId = StickerPackId.deserialize(Hex.fromStringCondensed(packIdString));
 864
 865         var sticker = new StickerPack(packId, packKey);
 866         account.getStickerStore().addStickerPack(sticker);
 867
 868         return new StickerPackUrl(packId, packKey);
 869     }
 870
 871     @Override
 872     public List<org.asamk.signal.manager.api.StickerPack> getStickerPacks() {
 873         final var stickerPackStore = context.getStickerPackStore();
 874         return account.getStickerStore().getStickerPacks().stream().map(pack -> {
 875             if (stickerPackStore.existsStickerPack(pack.packId())) {
 876                 try {
 877                     final var manifest = stickerPackStore.retrieveManifest(pack.packId());
 878                     return new org.asamk.signal.manager.api.StickerPack(pack.packId(),
 879                             new StickerPackUrl(pack.packId(), pack.packKey()),
 880                             pack.isInstalled(),
 881                             manifest.title(),
 882                             manifest.author(),
 883                             Optional.ofNullable(manifest.cover() == null ? null : manifest.cover().toApi()),
 884                             manifest.stickers().stream().map(JsonStickerPack.JsonSticker::toApi).toList());
 885                 } catch (Exception e) {
 886                     logger.warn("Failed to read local sticker pack manifest: {}", e.getMessage(), e);
 887                 }
 888             }
 889
 890             return new org.asamk.signal.manager.api.StickerPack(pack.packId(), pack.packKey(), pack.isInstalled());
 891         }).toList();
 892     }
 893
 894     @Override
 895     public void requestAllSyncData() throws IOException {
 896         context.getSyncHelper().requestAllSyncData();
 897         retrieveRemoteStorage();
 898     }
 899
 900     void retrieveRemoteStorage() throws IOException {
 901         context.getStorageHelper().readDataFromStorage();
 902     }
 903
 904     @Override
 905     public void addReceiveHandler(final ReceiveMessageHandler handler, final boolean isWeakListener) {
 906         synchronized (messageHandlers) {
 907             if (isWeakListener) {
 908                 weakHandlers.add(handler);
 909             } else {
 910                 messageHandlers.add(handler);
 911                 startReceiveThreadIfRequired();
 912             }
 913         }
 914     }
 915
 916     private static final AtomicInteger threadNumber = new AtomicInteger(0);
 917
 918     private void startReceiveThreadIfRequired() {
 919         if (receiveThread != null || isReceivingSynchronous) {
 920             return;
 921         }
 922         receiveThread = new Thread(() -> {
 923             logger.debug("Starting receiving messages");
 924             context.getReceiveHelper().receiveMessagesContinuously(this::passReceivedMessageToHandlers);
 925             logger.debug("Finished receiving messages");
 926             synchronized (messageHandlers) {
 927                 receiveThread = null;
 928
 929                 // Check if in the meantime another handler has been registered
 930                 if (!messageHandlers.isEmpty()) {
 931                     logger.debug("Another handler has been registered, starting receive thread again");
 932                     startReceiveThreadIfRequired();
 933                 }
 934             }
 935         });
 936         receiveThread.setName("receive-" + threadNumber.getAndIncrement());
 937
 938         receiveThread.start();
 939     }
 940
 941     private void passReceivedMessageToHandlers(MessageEnvelope envelope, Throwable e) {
 942         synchronized (messageHandlers) {
 943             Stream.concat(messageHandlers.stream(), weakHandlers.stream()).forEach(h -> {
 944                 try {
 945                     h.handleMessage(envelope, e);
 946                 } catch (Throwable ex) {
 947                     logger.warn("Message handler failed, ignoring", ex);
 948                 }
 949             });
 950         }
 951     }
 952
 953     @Override
 954     public void removeReceiveHandler(final ReceiveMessageHandler handler) {
 955         final Thread thread;
 956         synchronized (messageHandlers) {
 957             weakHandlers.remove(handler);
 958             messageHandlers.remove(handler);
 959             if (!messageHandlers.isEmpty() || receiveThread == null || isReceivingSynchronous) {
 960                 return;
 961             }
 962             thread = receiveThread;
 963             receiveThread = null;
 964         }
 965
 966         stopReceiveThread(thread);
 967     }
 968
 969     private void stopReceiveThread(final Thread thread) {
 970         if (context.getReceiveHelper().requestStopReceiveMessages()) {
 971             logger.debug("Receive stop requested, interrupting read from server.");
 972             thread.interrupt();
 973         }
 974         try {
 975             thread.join();
 976         } catch (InterruptedException ignored) {
 977         }
 978     }
 979
 980     @Override
 981     public boolean isReceiving() {
 982         if (isReceivingSynchronous) {
 983             return true;
 984         }
 985         synchronized (messageHandlers) {
 986             return messageHandlers.size() > 0;
 987         }
 988     }
 989
 990     @Override
 991     public void receiveMessages(
 992             Optional<Duration> timeout, Optional<Integer> maxMessages, ReceiveMessageHandler handler
 993     ) throws IOException, AlreadyReceivingException {
 994         receiveMessages(timeout.orElse(Duration.ofMinutes(1)), timeout.isPresent(), maxMessages.orElse(null), handler);
 995     }
 996
 997     private void receiveMessages(
 998             Duration timeout, boolean returnOnTimeout, Integer maxMessages, ReceiveMessageHandler handler
 999     ) throws IOException, AlreadyReceivingException {
1000         synchronized (messageHandlers) {
1001             if (isReceiving()) {
1002                 throw new AlreadyReceivingException("Already receiving message.");
1003             }
1004             isReceivingSynchronous = true;
1005             receiveThread = Thread.currentThread();
1006         }
1007         try {
1008             context.getReceiveHelper().receiveMessages(timeout, returnOnTimeout, maxMessages, (envelope, e) -> {
1009                 passReceivedMessageToHandlers(envelope, e);
1010                 handler.handleMessage(envelope, e);
1011             });
1012         } finally {
1013             synchronized (messageHandlers) {
1014                 receiveThread = null;
1015                 isReceivingSynchronous = false;
1016                 if (messageHandlers.size() > 0) {
1017                     startReceiveThreadIfRequired();
1018                 }
1019             }
1020         }
1021     }
1022
1023     @Override
1024     public void setReceiveConfig(final ReceiveConfig receiveConfig) {
1025         context.getReceiveHelper().setReceiveConfig(receiveConfig);
1026     }
1027
1028     @Override
1029     public boolean hasCaughtUpWithOldMessages() {
1030         return context.getReceiveHelper().hasCaughtUpWithOldMessages();
1031     }
1032
1033     @Override
1034     public boolean isContactBlocked(final RecipientIdentifier.Single recipient) {
1035         final RecipientId recipientId;
1036         try {
1037             recipientId = context.getRecipientHelper().resolveRecipient(recipient);
1038         } catch (UnregisteredRecipientException e) {
1039             return false;
1040         }
1041         return context.getContactHelper().isContactBlocked(recipientId);
1042     }
1043
1044     @Override
1045     public void sendContacts() throws IOException {
1046         context.getSyncHelper().sendContacts();
1047     }
1048
1049     @Override
1050     public List<Recipient> getRecipients(
1051             boolean onlyContacts,
1052             Optional<Boolean> blocked,
1053             Collection<RecipientIdentifier.Single> recipients,
1054             Optional<String> name
1055     ) {
1056         final var recipientIds = recipients.stream().map(a -> {
1057             try {
1058                 return context.getRecipientHelper().resolveRecipient(a);
1059             } catch (UnregisteredRecipientException e) {
1060                 return null;
1061             }
1062         }).filter(Objects::nonNull).collect(Collectors.toSet());
1063         if (!recipients.isEmpty() && recipientIds.isEmpty()) {
1064             return List.of();
1065         }
1066         // refresh profiles of explicitly given recipients
1067         context.getProfileHelper().refreshRecipientProfiles(recipientIds);
1068         return account.getRecipientStore()
1069                 .getRecipients(onlyContacts, blocked, recipientIds, name)
1070                 .stream()
1071                 .map(s -> new Recipient(s.getRecipientId(),
1072                         s.getAddress().toApiRecipientAddress(),
1073                         s.getContact(),
1074                         s.getProfileKey(),
1075                         s.getExpiringProfileKeyCredential(),
1076                         s.getProfile()))
1077                 .toList();
1078     }
1079
1080     @Override
1081     public String getContactOrProfileName(RecipientIdentifier.Single recipient) {
1082         final RecipientId recipientId;
1083         try {
1084             recipientId = context.getRecipientHelper().resolveRecipient(recipient);
1085         } catch (UnregisteredRecipientException e) {
1086             return null;
1087         }
1088
1089         final var contact = account.getContactStore().getContact(recipientId);
1090         if (contact != null && !Util.isEmpty(contact.getName())) {
1091             return contact.getName();
1092         }
1093
1094         final var profile = context.getProfileHelper().getRecipientProfile(recipientId);
1095         if (profile != null) {
1096             return profile.getDisplayName();
1097         }
1098
1099         return null;
1100     }
1101
1102     @Override
1103     public Group getGroup(GroupId groupId) {
1104         return toGroup(context.getGroupHelper().getGroup(groupId));
1105     }
1106
1107     @Override
1108     public List<Identity> getIdentities() {
1109         return account.getIdentityKeyStore().getIdentities().stream().map(this::toIdentity).toList();
1110     }
1111
1112     private Identity toIdentity(final IdentityInfo identityInfo) {
1113         if (identityInfo == null) {
1114             return null;
1115         }
1116
1117         final var address = account.getRecipientAddressResolver()
1118                 .resolveRecipientAddress(account.getRecipientResolver().resolveRecipient(identityInfo.getServiceId()));
1119         final var scannableFingerprint = context.getIdentityHelper()
1120                 .computeSafetyNumberForScanning(identityInfo.getServiceId(), identityInfo.getIdentityKey());
1121         return new Identity(address.toApiRecipientAddress(),
1122                 identityInfo.getIdentityKey(),
1123                 context.getIdentityHelper()
1124                         .computeSafetyNumber(identityInfo.getServiceId(), identityInfo.getIdentityKey()),
1125                 scannableFingerprint == null ? null : scannableFingerprint.getSerialized(),
1126                 identityInfo.getTrustLevel(),
1127                 identityInfo.getDateAddedTimestamp());
1128     }
1129
1130     @Override
1131     public List<Identity> getIdentities(RecipientIdentifier.Single recipient) {
1132         ServiceId serviceId;
1133         try {
1134             serviceId = account.getRecipientAddressResolver()
1135                     .resolveRecipientAddress(context.getRecipientHelper().resolveRecipient(recipient))
1136                     .getServiceId();
1137         } catch (UnregisteredRecipientException e) {
1138             return List.of();
1139         }
1140         final var identity = account.getIdentityKeyStore().getIdentityInfo(serviceId);
1141         return identity == null ? List.of() : List.of(toIdentity(identity));
1142     }
1143
1144     @Override
1145     public boolean trustIdentityVerified(
1146             RecipientIdentifier.Single recipient, byte[] fingerprint
1147     ) throws UnregisteredRecipientException {
1148         return trustIdentity(recipient, r -> context.getIdentityHelper().trustIdentityVerified(r, fingerprint));
1149     }
1150
1151     @Override
1152     public boolean trustIdentityVerifiedSafetyNumber(
1153             RecipientIdentifier.Single recipient, String safetyNumber
1154     ) throws UnregisteredRecipientException {
1155         return trustIdentity(recipient,
1156                 r -> context.getIdentityHelper().trustIdentityVerifiedSafetyNumber(r, safetyNumber));
1157     }
1158
1159     @Override
1160     public boolean trustIdentityVerifiedSafetyNumber(
1161             RecipientIdentifier.Single recipient, byte[] safetyNumber
1162     ) throws UnregisteredRecipientException {
1163         return trustIdentity(recipient,
1164                 r -> context.getIdentityHelper().trustIdentityVerifiedSafetyNumber(r, safetyNumber));
1165     }
1166
1167     @Override
1168     public boolean trustIdentityAllKeys(RecipientIdentifier.Single recipient) throws UnregisteredRecipientException {
1169         return trustIdentity(recipient, r -> context.getIdentityHelper().trustIdentityAllKeys(r));
1170     }
1171
1172     private boolean trustIdentity(
1173             RecipientIdentifier.Single recipient, Function<RecipientId, Boolean> trustMethod
1174     ) throws UnregisteredRecipientException {
1175         final var recipientId = context.getRecipientHelper().resolveRecipient(recipient);
1176         final var updated = trustMethod.apply(recipientId);
1177         if (updated && this.isReceiving()) {
1178             context.getReceiveHelper().setNeedsToRetryFailedMessages(true);
1179         }
1180         return updated;
1181     }
1182
1183     @Override
1184     public void addAddressChangedListener(final Runnable listener) {
1185         synchronized (addressChangedListeners) {
1186             addressChangedListeners.add(listener);
1187         }
1188     }
1189
1190     @Override
1191     public void addClosedListener(final Runnable listener) {
1192         synchronized (closedListeners) {
1193             closedListeners.add(listener);
1194         }
1195     }
1196
1197     @Override
1198     public InputStream retrieveAttachment(final String id) throws IOException {
1199         return context.getAttachmentHelper().retrieveAttachment(id).getStream();
1200     }
1201
1202     @Override
1203     public void close() {
1204         Thread thread;
1205         synchronized (messageHandlers) {
1206             weakHandlers.clear();
1207             messageHandlers.clear();
1208             thread = receiveThread;
1209             receiveThread = null;
1210         }
1211         if (thread != null) {
1212             stopReceiveThread(thread);
1213         }
1214         executor.shutdown();
1215
1216         dependencies.getSignalWebSocket().disconnect();
1217         disposable.dispose();
1218
1219         if (account != null) {
1220             account.close();
1221         }
1222
1223         synchronized (closedListeners) {
1224             closedListeners.forEach(Runnable::run);
1225             closedListeners.clear();
1226         }
1227
1228         account = null;
1229     }
1230 }