nmode's Git Repositories - signal-cli/blob - lib/src/main/java/org/asamk/signal/manager/internal/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.internal;
  18
  19 import org.asamk.signal.manager.Manager;
  20 import org.asamk.signal.manager.api.AlreadyReceivingException;
  21 import org.asamk.signal.manager.api.AttachmentInvalidException;
  22 import org.asamk.signal.manager.api.CaptchaRequiredException;
  23 import org.asamk.signal.manager.api.Configuration;
  24 import org.asamk.signal.manager.api.Device;
  25 import org.asamk.signal.manager.api.DeviceLinkUrl;
  26 import org.asamk.signal.manager.api.Group;
  27 import org.asamk.signal.manager.api.GroupId;
  28 import org.asamk.signal.manager.api.GroupInviteLinkUrl;
  29 import org.asamk.signal.manager.api.GroupNotFoundException;
  30 import org.asamk.signal.manager.api.GroupSendingNotAllowedException;
  31 import org.asamk.signal.manager.api.Identity;
  32 import org.asamk.signal.manager.api.IdentityVerificationCode;
  33 import org.asamk.signal.manager.api.InactiveGroupLinkException;
  34 import org.asamk.signal.manager.api.IncorrectPinException;
  35 import org.asamk.signal.manager.api.InvalidDeviceLinkException;
  36 import org.asamk.signal.manager.api.InvalidStickerException;
  37 import org.asamk.signal.manager.api.InvalidUsernameException;
  38 import org.asamk.signal.manager.api.LastGroupAdminException;
  39 import org.asamk.signal.manager.api.Message;
  40 import org.asamk.signal.manager.api.MessageEnvelope;
  41 import org.asamk.signal.manager.api.NonNormalizedPhoneNumberException;
  42 import org.asamk.signal.manager.api.NotAGroupMemberException;
  43 import org.asamk.signal.manager.api.NotPrimaryDeviceException;
  44 import org.asamk.signal.manager.api.Pair;
  45 import org.asamk.signal.manager.api.PendingAdminApprovalException;
  46 import org.asamk.signal.manager.api.PinLockedException;
  47 import org.asamk.signal.manager.api.Profile;
  48 import org.asamk.signal.manager.api.RateLimitException;
  49 import org.asamk.signal.manager.api.ReceiveConfig;
  50 import org.asamk.signal.manager.api.Recipient;
  51 import org.asamk.signal.manager.api.RecipientIdentifier;
  52 import org.asamk.signal.manager.api.SendGroupMessageResults;
  53 import org.asamk.signal.manager.api.SendMessageResult;
  54 import org.asamk.signal.manager.api.SendMessageResults;
  55 import org.asamk.signal.manager.api.StickerPackId;
  56 import org.asamk.signal.manager.api.StickerPackInvalidException;
  57 import org.asamk.signal.manager.api.StickerPackUrl;
  58 import org.asamk.signal.manager.api.TextStyle;
  59 import org.asamk.signal.manager.api.TypingAction;
  60 import org.asamk.signal.manager.api.UnregisteredRecipientException;
  61 import org.asamk.signal.manager.api.UpdateGroup;
  62 import org.asamk.signal.manager.api.UpdateProfile;
  63 import org.asamk.signal.manager.api.UserStatus;
  64 import org.asamk.signal.manager.config.ServiceEnvironmentConfig;
  65 import org.asamk.signal.manager.helper.AccountFileUpdater;
  66 import org.asamk.signal.manager.helper.Context;
  67 import org.asamk.signal.manager.helper.RecipientHelper.RegisteredUser;
  68 import org.asamk.signal.manager.storage.AttachmentStore;
  69 import org.asamk.signal.manager.storage.AvatarStore;
  70 import org.asamk.signal.manager.storage.SignalAccount;
  71 import org.asamk.signal.manager.storage.groups.GroupInfo;
  72 import org.asamk.signal.manager.storage.identities.IdentityInfo;
  73 import org.asamk.signal.manager.storage.recipients.RecipientId;
  74 import org.asamk.signal.manager.storage.stickerPacks.JsonStickerPack;
  75 import org.asamk.signal.manager.storage.stickerPacks.StickerPackStore;
  76 import org.asamk.signal.manager.storage.stickers.StickerPack;
  77 import org.asamk.signal.manager.util.AttachmentUtils;
  78 import org.asamk.signal.manager.util.KeyUtils;
  79 import org.asamk.signal.manager.util.MimeUtils;
  80 import org.asamk.signal.manager.util.StickerUtils;
  81 import org.signal.libsignal.protocol.InvalidMessageException;
  82 import org.signal.libsignal.usernames.BaseUsernameException;
  83 import org.slf4j.Logger;
  84 import org.slf4j.LoggerFactory;
  85 import org.whispersystems.signalservice.api.SignalSessionLock;
  86 import org.whispersystems.signalservice.api.messages.SignalServiceDataMessage;
  87 import org.whispersystems.signalservice.api.messages.SignalServicePreview;
  88 import org.whispersystems.signalservice.api.messages.SignalServiceReceiptMessage;
  89 import org.whispersystems.signalservice.api.messages.SignalServiceTypingMessage;
  90 import org.whispersystems.signalservice.api.push.ServiceId;
  91 import org.whispersystems.signalservice.api.push.ServiceId.ACI;
  92 import org.whispersystems.signalservice.api.push.ServiceIdType;
  93 import org.whispersystems.signalservice.api.push.exceptions.CdsiResourceExhaustedException;
  94 import org.whispersystems.signalservice.api.util.DeviceNameUtil;
  95 import org.whispersystems.signalservice.api.util.InvalidNumberException;
  96 import org.whispersystems.signalservice.api.util.PhoneNumberFormatter;
  97 import org.whispersystems.signalservice.api.util.StreamDetails;
  98 import org.whispersystems.signalservice.internal.util.Hex;
  99 import org.whispersystems.signalservice.internal.util.Util;
 100
 101 import java.io.ByteArrayInputStream;
 102 import java.io.File;
 103 import java.io.IOException;
 104 import java.io.InputStream;
 105 import java.nio.charset.StandardCharsets;
 106 import java.time.Duration;
 107 import java.util.ArrayList;
 108 import java.util.Collection;
 109 import java.util.HashMap;
 110 import java.util.HashSet;
 111 import java.util.List;
 112 import java.util.Map;
 113 import java.util.Objects;
 114 import java.util.Optional;
 115 import java.util.Set;
 116 import java.util.concurrent.ExecutorService;
 117 import java.util.concurrent.Executors;
 118 import java.util.concurrent.TimeUnit;
 119 import java.util.concurrent.atomic.AtomicInteger;
 120 import java.util.concurrent.locks.ReentrantLock;
 121 import java.util.function.Function;
 122 import java.util.stream.Collectors;
 123 import java.util.stream.Stream;
 124
 125 import io.reactivex.rxjava3.disposables.CompositeDisposable;
 126
 127 public class ManagerImpl implements Manager {
 128
 129     private final static Logger logger = LoggerFactory.getLogger(ManagerImpl.class);
 130
 131     private SignalAccount account;
 132     private final SignalDependencies dependencies;
 133     private final Context context;
 134
 135     private final ExecutorService executor = Executors.newCachedThreadPool();
 136
 137     private Thread receiveThread;
 138     private boolean isReceivingSynchronous;
 139     private final Set<ReceiveMessageHandler> weakHandlers = new HashSet<>();
 140     private final Set<ReceiveMessageHandler> messageHandlers = new HashSet<>();
 141     private final List<Runnable> closedListeners = new ArrayList<>();
 142     private final List<Runnable> addressChangedListeners = new ArrayList<>();
 143     private final CompositeDisposable disposable = new CompositeDisposable();
 144
 145     public ManagerImpl(
 146             SignalAccount account,
 147             PathConfig pathConfig,
 148             AccountFileUpdater accountFileUpdater,
 149             ServiceEnvironmentConfig serviceEnvironmentConfig,
 150             String userAgent
 151     ) {
 152         this.account = account;
 153
 154         final var sessionLock = new SignalSessionLock() {
 155             private final ReentrantLock LEGACY_LOCK = new ReentrantLock();
 156
 157             @Override
 158             public Lock acquire() {
 159                 LEGACY_LOCK.lock();
 160                 return LEGACY_LOCK::unlock;
 161             }
 162         };
 163         this.dependencies = new SignalDependencies(serviceEnvironmentConfig,
 164                 userAgent,
 165                 account.getCredentialsProvider(),
 166                 account.getSignalServiceDataStore(),
 167                 executor,
 168                 sessionLock);
 169         final var avatarStore = new AvatarStore(pathConfig.avatarsPath());
 170         final var attachmentStore = new AttachmentStore(pathConfig.attachmentsPath());
 171         final var stickerPackStore = new StickerPackStore(pathConfig.stickerPacksPath());
 172
 173         this.context = new Context(account, new AccountFileUpdater() {
 174             @Override
 175             public void updateAccountIdentifiers(final String number, final ACI aci) {
 176                 accountFileUpdater.updateAccountIdentifiers(number, aci);
 177                 synchronized (addressChangedListeners) {
 178                     addressChangedListeners.forEach(Runnable::run);
 179                 }
 180             }
 181
 182             @Override
 183             public void removeAccount() {
 184                 accountFileUpdater.removeAccount();
 185             }
 186         }, dependencies, avatarStore, attachmentStore, stickerPackStore);
 187         this.context.getAccountHelper().setUnregisteredListener(this::close);
 188         this.context.getReceiveHelper().setAuthenticationFailureListener(this::close);
 189         this.context.getReceiveHelper().setCaughtUpWithOldMessagesListener(() -> {
 190             synchronized (this) {
 191                 this.notifyAll();
 192             }
 193         });
 194         disposable.add(account.getIdentityKeyStore().getIdentityChanges().subscribe(serviceId -> {
 195             logger.trace("Archiving old sessions for {}", serviceId);
 196             account.getAccountData(ServiceIdType.ACI).getSessionStore().archiveSessions(serviceId);
 197             account.getAccountData(ServiceIdType.PNI).getSessionStore().archiveSessions(serviceId);
 198             account.getSenderKeyStore().deleteSharedWith(serviceId);
 199             final var recipientId = account.getRecipientResolver().resolveRecipient(serviceId);
 200             final var profile = account.getProfileStore().getProfile(recipientId);
 201             if (profile != null) {
 202                 account.getProfileStore()
 203                         .storeProfile(recipientId,
 204                                 Profile.newBuilder(profile)
 205                                         .withUnidentifiedAccessMode(Profile.UnidentifiedAccessMode.UNKNOWN)
 206                                         .withLastUpdateTimestamp(0)
 207                                         .build());
 208             }
 209         }));
 210     }
 211
 212     @Override
 213     public String getSelfNumber() {
 214         return account.getNumber();
 215     }
 216
 217     public void checkAccountState() throws IOException {
 218         context.getAccountHelper().checkAccountState();
 219         final var lastRecipientsRefresh = account.getLastRecipientsRefresh();
 220         if (lastRecipientsRefresh == null
 221                 || lastRecipientsRefresh < System.currentTimeMillis() - TimeUnit.DAYS.toMillis(1)) {
 222             try {
 223                 context.getRecipientHelper().refreshUsers();
 224             } catch (Exception e) {
 225                 logger.warn("Full CDSI recipients refresh failed, ignoring: {} ({})",
 226                         e.getMessage(),
 227                         e.getClass().getSimpleName());
 228                 logger.debug("Full CDSI refresh failed", e);
 229             }
 230         }
 231     }
 232
 233     @Override
 234     public Map<String, UserStatus> getUserStatus(Set<String> numbers) throws IOException, RateLimitException {
 235         final var canonicalizedNumbers = numbers.stream().collect(Collectors.toMap(n -> n, n -> {
 236             try {
 237                 final var canonicalizedNumber = PhoneNumberFormatter.formatNumber(n, account.getNumber());
 238                 if (!canonicalizedNumber.equals(n)) {
 239                     logger.debug("Normalized number {} to {}.", n, canonicalizedNumber);
 240                 }
 241                 return canonicalizedNumber;
 242             } catch (InvalidNumberException e) {
 243                 return "";
 244             }
 245         }));
 246
 247         // Note "registeredUsers" has no optionals. It only gives us info on users who are registered
 248         final var canonicalizedNumbersSet = canonicalizedNumbers.values()
 249                 .stream()
 250                 .filter(s -> !s.isEmpty())
 251                 .collect(Collectors.toSet());
 252
 253         final Map<String, RegisteredUser> registeredUsers;
 254         try {
 255             registeredUsers = context.getRecipientHelper().getRegisteredUsers(canonicalizedNumbersSet);
 256         } catch (CdsiResourceExhaustedException e) {
 257             logger.debug("CDSI resource exhausted: {}", e.getMessage());
 258             throw new RateLimitException(System.currentTimeMillis() + e.getRetryAfterSeconds() * 1000L);
 259         }
 260
 261         return numbers.stream().collect(Collectors.toMap(n -> n, n -> {
 262             final var number = canonicalizedNumbers.get(n);
 263             final var user = registeredUsers.get(number);
 264             final var serviceId = user == null ? null : user.getServiceId();
 265             final var profile = serviceId == null
 266                     ? null
 267                     : context.getProfileHelper()
 268                             .getRecipientProfile(account.getRecipientResolver().resolveRecipient(serviceId));
 269             return new UserStatus(number.isEmpty() ? null : number,
 270                     serviceId == null ? null : serviceId.getRawUuid(),
 271                     profile != null
 272                             && profile.getUnidentifiedAccessMode() == Profile.UnidentifiedAccessMode.UNRESTRICTED);
 273         }));
 274     }
 275
 276     @Override
 277     public void updateAccountAttributes(String deviceName) throws IOException {
 278         if (deviceName != null) {
 279             context.getAccountHelper().setDeviceName(deviceName);
 280         }
 281         context.getAccountHelper().updateAccountAttributes();
 282         context.getAccountHelper().checkWhoAmiI();
 283     }
 284
 285     @Override
 286     public Configuration getConfiguration() {
 287         final var configurationStore = account.getConfigurationStore();
 288         return Configuration.from(configurationStore);
 289     }
 290
 291     @Override
 292     public void updateConfiguration(
 293             Configuration configuration
 294     ) throws NotPrimaryDeviceException {
 295         if (!account.isPrimaryDevice()) {
 296             throw new NotPrimaryDeviceException();
 297         }
 298
 299         final var configurationStore = account.getConfigurationStore();
 300         if (configuration.readReceipts().isPresent()) {
 301             configurationStore.setReadReceipts(configuration.readReceipts().get());
 302         }
 303         if (configuration.unidentifiedDeliveryIndicators().isPresent()) {
 304             configurationStore.setUnidentifiedDeliveryIndicators(configuration.unidentifiedDeliveryIndicators().get());
 305         }
 306         if (configuration.typingIndicators().isPresent()) {
 307             configurationStore.setTypingIndicators(configuration.typingIndicators().get());
 308         }
 309         if (configuration.linkPreviews().isPresent()) {
 310             configurationStore.setLinkPreviews(configuration.linkPreviews().get());
 311         }
 312         context.getSyncHelper().sendConfigurationMessage();
 313     }
 314
 315     @Override
 316     public void updateProfile(UpdateProfile updateProfile) throws IOException {
 317         context.getProfileHelper()
 318                 .setProfile(updateProfile.getGivenName(),
 319                         updateProfile.getFamilyName(),
 320                         updateProfile.getAbout(),
 321                         updateProfile.getAboutEmoji(),
 322                         updateProfile.isDeleteAvatar()
 323                                 ? Optional.empty()
 324                                 : updateProfile.getAvatar() == null ? null : Optional.of(updateProfile.getAvatar()),
 325                         updateProfile.getMobileCoinAddress());
 326         context.getSyncHelper().sendSyncFetchProfileMessage();
 327     }
 328
 329     void refreshCurrentUsername() throws IOException, BaseUsernameException {
 330         context.getAccountHelper().refreshCurrentUsername();
 331     }
 332
 333     @Override
 334     public String setUsername(final String username) throws IOException, InvalidUsernameException {
 335         try {
 336             return context.getAccountHelper().reserveUsername(username);
 337         } catch (BaseUsernameException e) {
 338             throw new InvalidUsernameException(e.getMessage() + " (" + e.getClass().getSimpleName() + ")", e);
 339         }
 340     }
 341
 342     @Override
 343     public void deleteUsername() throws IOException {
 344         context.getAccountHelper().deleteUsername();
 345     }
 346
 347     @Override
 348     public void startChangeNumber(
 349             String newNumber, boolean voiceVerification, String captcha
 350     ) throws RateLimitException, IOException, CaptchaRequiredException, NonNormalizedPhoneNumberException, NotPrimaryDeviceException {
 351         if (!account.isPrimaryDevice()) {
 352             throw new NotPrimaryDeviceException();
 353         }
 354         context.getAccountHelper().startChangeNumber(newNumber, voiceVerification, captcha);
 355     }
 356
 357     @Override
 358     public void finishChangeNumber(
 359             String newNumber, String verificationCode, String pin
 360     ) throws IncorrectPinException, PinLockedException, IOException, NotPrimaryDeviceException {
 361         if (!account.isPrimaryDevice()) {
 362             throw new NotPrimaryDeviceException();
 363         }
 364         context.getAccountHelper().finishChangeNumber(newNumber, verificationCode, pin);
 365     }
 366
 367     @Override
 368     public void unregister() throws IOException {
 369         context.getAccountHelper().unregister();
 370     }
 371
 372     @Override
 373     public void deleteAccount() throws IOException {
 374         context.getAccountHelper().deleteAccount();
 375     }
 376
 377     @Override
 378     public void submitRateLimitRecaptchaChallenge(String challenge, String captcha) throws IOException {
 379         captcha = captcha == null ? null : captcha.replace("signalcaptcha://", "");
 380
 381         dependencies.getAccountManager().submitRateLimitRecaptchaChallenge(challenge, captcha);
 382     }
 383
 384     @Override
 385     public List<Device> getLinkedDevices() throws IOException {
 386         var devices = dependencies.getAccountManager().getDevices();
 387         account.setMultiDevice(devices.size() > 1);
 388         var identityKey = account.getAciIdentityKeyPair().getPrivateKey();
 389         return devices.stream().map(d -> {
 390             String deviceName = d.getName();
 391             if (deviceName != null) {
 392                 try {
 393                     deviceName = DeviceNameUtil.decryptDeviceName(deviceName, identityKey);
 394                 } catch (IOException e) {
 395                     logger.debug("Failed to decrypt device name, maybe plain text?", e);
 396                 }
 397             }
 398             return new Device(d.getId(),
 399                     deviceName,
 400                     d.getCreated(),
 401                     d.getLastSeen(),
 402                     d.getId() == account.getDeviceId());
 403         }).toList();
 404     }
 405
 406     @Override
 407     public void removeLinkedDevices(int deviceId) throws IOException {
 408         context.getAccountHelper().removeLinkedDevices(deviceId);
 409     }
 410
 411     @Override
 412     public void addDeviceLink(DeviceLinkUrl linkUrl) throws IOException, InvalidDeviceLinkException, NotPrimaryDeviceException {
 413         if (!account.isPrimaryDevice()) {
 414             throw new NotPrimaryDeviceException();
 415         }
 416         context.getAccountHelper().addDevice(linkUrl);
 417     }
 418
 419     @Override
 420     public void setRegistrationLockPin(Optional<String> pin) throws IOException, NotPrimaryDeviceException {
 421         if (!account.isPrimaryDevice()) {
 422             throw new NotPrimaryDeviceException();
 423         }
 424         if (pin.isPresent()) {
 425             context.getAccountHelper().setRegistrationPin(pin.get());
 426         } else {
 427             context.getAccountHelper().removeRegistrationPin();
 428         }
 429     }
 430
 431     void refreshPreKeys() throws IOException {
 432         context.getPreKeyHelper().refreshPreKeysIfNecessary();
 433     }
 434
 435     @Override
 436     public List<Group> getGroups() {
 437         return account.getGroupStore().getGroups().stream().map(this::toGroup).toList();
 438     }
 439
 440     private Group toGroup(final GroupInfo groupInfo) {
 441         if (groupInfo == null) {
 442             return null;
 443         }
 444
 445         return Group.from(groupInfo, account.getRecipientAddressResolver(), account.getSelfRecipientId());
 446     }
 447
 448     @Override
 449     public SendGroupMessageResults quitGroup(
 450             GroupId groupId, Set<RecipientIdentifier.Single> groupAdmins
 451     ) throws GroupNotFoundException, IOException, NotAGroupMemberException, LastGroupAdminException, UnregisteredRecipientException {
 452         final var newAdmins = context.getRecipientHelper().resolveRecipients(groupAdmins);
 453         return context.getGroupHelper().quitGroup(groupId, newAdmins);
 454     }
 455
 456     @Override
 457     public void deleteGroup(GroupId groupId) throws IOException {
 458         final var group = context.getGroupHelper().getGroup(groupId);
 459         if (group.isMember(account.getSelfRecipientId())) {
 460             throw new IOException(
 461                     "The local group information cannot be removed, as the user is still a member of the group");
 462         }
 463         context.getGroupHelper().deleteGroup(groupId);
 464     }
 465
 466     @Override
 467     public Pair<GroupId, SendGroupMessageResults> createGroup(
 468             String name, Set<RecipientIdentifier.Single> members, String avatarFile
 469     ) throws IOException, AttachmentInvalidException, UnregisteredRecipientException {
 470         return context.getGroupHelper()
 471                 .createGroup(name,
 472                         members == null ? null : context.getRecipientHelper().resolveRecipients(members),
 473                         avatarFile);
 474     }
 475
 476     @Override
 477     public SendGroupMessageResults updateGroup(
 478             final GroupId groupId, final UpdateGroup updateGroup
 479     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException, GroupSendingNotAllowedException, UnregisteredRecipientException {
 480         return context.getGroupHelper()
 481                 .updateGroup(groupId,
 482                         updateGroup.getName(),
 483                         updateGroup.getDescription(),
 484                         updateGroup.getMembers() == null
 485                                 ? null
 486                                 : context.getRecipientHelper().resolveRecipients(updateGroup.getMembers()),
 487                         updateGroup.getRemoveMembers() == null
 488                                 ? null
 489                                 : context.getRecipientHelper().resolveRecipients(updateGroup.getRemoveMembers()),
 490                         updateGroup.getAdmins() == null
 491                                 ? null
 492                                 : context.getRecipientHelper().resolveRecipients(updateGroup.getAdmins()),
 493                         updateGroup.getRemoveAdmins() == null
 494                                 ? null
 495                                 : context.getRecipientHelper().resolveRecipients(updateGroup.getRemoveAdmins()),
 496                         updateGroup.getBanMembers() == null
 497                                 ? null
 498                                 : context.getRecipientHelper().resolveRecipients(updateGroup.getBanMembers()),
 499                         updateGroup.getUnbanMembers() == null
 500                                 ? null
 501                                 : context.getRecipientHelper().resolveRecipients(updateGroup.getUnbanMembers()),
 502                         updateGroup.isResetGroupLink(),
 503                         updateGroup.getGroupLinkState(),
 504                         updateGroup.getAddMemberPermission(),
 505                         updateGroup.getEditDetailsPermission(),
 506                         updateGroup.getAvatarFile(),
 507                         updateGroup.getExpirationTimer(),
 508                         updateGroup.getIsAnnouncementGroup());
 509     }
 510
 511     @Override
 512     public Pair<GroupId, SendGroupMessageResults> joinGroup(
 513             GroupInviteLinkUrl inviteLinkUrl
 514     ) throws IOException, InactiveGroupLinkException, PendingAdminApprovalException {
 515         return context.getGroupHelper().joinGroup(inviteLinkUrl);
 516     }
 517
 518     private SendMessageResults sendMessage(
 519             SignalServiceDataMessage.Builder messageBuilder, Set<RecipientIdentifier> recipients
 520     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException {
 521         return sendMessage(messageBuilder, recipients, Optional.empty());
 522     }
 523
 524     private SendMessageResults sendMessage(
 525             SignalServiceDataMessage.Builder messageBuilder,
 526             Set<RecipientIdentifier> recipients,
 527             Optional<Long> editTargetTimestamp
 528     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException {
 529         var results = new HashMap<RecipientIdentifier, List<SendMessageResult>>();
 530         long timestamp = System.currentTimeMillis();
 531         messageBuilder.withTimestamp(timestamp);
 532         for (final var recipient : recipients) {
 533             if (recipient instanceof RecipientIdentifier.Single single) {
 534                 try {
 535                     final var recipientId = context.getRecipientHelper().resolveRecipient(single);
 536                     final var result = context.getSendHelper()
 537                             .sendMessage(messageBuilder, recipientId, editTargetTimestamp);
 538                     results.put(recipient, List.of(toSendMessageResult(result)));
 539                 } catch (UnregisteredRecipientException e) {
 540                     results.put(recipient,
 541                             List.of(SendMessageResult.unregisteredFailure(single.toPartialRecipientAddress())));
 542                 }
 543             } else if (recipient instanceof RecipientIdentifier.NoteToSelf) {
 544                 final var result = context.getSendHelper().sendSelfMessage(messageBuilder, editTargetTimestamp);
 545                 results.put(recipient, List.of(toSendMessageResult(result)));
 546             } else if (recipient instanceof RecipientIdentifier.Group group) {
 547                 final var result = context.getSendHelper()
 548                         .sendAsGroupMessage(messageBuilder, group.groupId(), editTargetTimestamp);
 549                 results.put(recipient, result.stream().map(this::toSendMessageResult).toList());
 550             }
 551         }
 552         return new SendMessageResults(timestamp, results);
 553     }
 554
 555     private SendMessageResult toSendMessageResult(final org.whispersystems.signalservice.api.messages.SendMessageResult result) {
 556         return SendMessageResult.from(result, account.getRecipientResolver(), account.getRecipientAddressResolver());
 557     }
 558
 559     private SendMessageResults sendTypingMessage(
 560             SignalServiceTypingMessage.Action action, Set<RecipientIdentifier> recipients
 561     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException {
 562         var results = new HashMap<RecipientIdentifier, List<SendMessageResult>>();
 563         final var timestamp = System.currentTimeMillis();
 564         for (var recipient : recipients) {
 565             if (recipient instanceof RecipientIdentifier.Single single) {
 566                 final var message = new SignalServiceTypingMessage(action, timestamp, Optional.empty());
 567                 try {
 568                     final var recipientId = context.getRecipientHelper().resolveRecipient(single);
 569                     final var result = context.getSendHelper().sendTypingMessage(message, recipientId);
 570                     results.put(recipient, List.of(toSendMessageResult(result)));
 571                 } catch (UnregisteredRecipientException e) {
 572                     results.put(recipient,
 573                             List.of(SendMessageResult.unregisteredFailure(single.toPartialRecipientAddress())));
 574                 }
 575             } else if (recipient instanceof RecipientIdentifier.Group) {
 576                 final var groupId = ((RecipientIdentifier.Group) recipient).groupId();
 577                 final var message = new SignalServiceTypingMessage(action, timestamp, Optional.of(groupId.serialize()));
 578                 final var result = context.getSendHelper().sendGroupTypingMessage(message, groupId);
 579                 results.put(recipient, result.stream().map(this::toSendMessageResult).toList());
 580             }
 581         }
 582         return new SendMessageResults(timestamp, results);
 583     }
 584
 585     @Override
 586     public SendMessageResults sendTypingMessage(
 587             TypingAction action, Set<RecipientIdentifier> recipients
 588     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException {
 589         return sendTypingMessage(action.toSignalService(), recipients);
 590     }
 591
 592     @Override
 593     public SendMessageResults sendReadReceipt(
 594             RecipientIdentifier.Single sender, List<Long> messageIds
 595     ) {
 596         final var timestamp = System.currentTimeMillis();
 597         var receiptMessage = new SignalServiceReceiptMessage(SignalServiceReceiptMessage.Type.READ,
 598                 messageIds,
 599                 timestamp);
 600
 601         return sendReceiptMessage(sender, timestamp, receiptMessage);
 602     }
 603
 604     @Override
 605     public SendMessageResults sendViewedReceipt(
 606             RecipientIdentifier.Single sender, List<Long> messageIds
 607     ) {
 608         final var timestamp = System.currentTimeMillis();
 609         var receiptMessage = new SignalServiceReceiptMessage(SignalServiceReceiptMessage.Type.VIEWED,
 610                 messageIds,
 611                 timestamp);
 612
 613         return sendReceiptMessage(sender, timestamp, receiptMessage);
 614     }
 615
 616     private SendMessageResults sendReceiptMessage(
 617             final RecipientIdentifier.Single sender,
 618             final long timestamp,
 619             final SignalServiceReceiptMessage receiptMessage
 620     ) {
 621         try {
 622             final var result = context.getSendHelper()
 623                     .sendReceiptMessage(receiptMessage, context.getRecipientHelper().resolveRecipient(sender));
 624             return new SendMessageResults(timestamp, Map.of(sender, List.of(toSendMessageResult(result))));
 625         } catch (UnregisteredRecipientException e) {
 626             return new SendMessageResults(timestamp,
 627                     Map.of(sender, List.of(SendMessageResult.unregisteredFailure(sender.toPartialRecipientAddress()))));
 628         }
 629     }
 630
 631     @Override
 632     public SendMessageResults sendMessage(
 633             Message message, Set<RecipientIdentifier> recipients
 634     ) throws IOException, AttachmentInvalidException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException, UnregisteredRecipientException, InvalidStickerException {
 635         final var selfProfile = context.getProfileHelper().getSelfProfile();
 636         if (selfProfile == null || selfProfile.getDisplayName().isEmpty()) {
 637             logger.warn(
 638                     "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.");
 639         }
 640         final var messageBuilder = SignalServiceDataMessage.newBuilder();
 641         applyMessage(messageBuilder, message);
 642         return sendMessage(messageBuilder, recipients);
 643     }
 644
 645     @Override
 646     public SendMessageResults sendEditMessage(
 647             Message message, Set<RecipientIdentifier> recipients, long editTargetTimestamp
 648     ) throws IOException, AttachmentInvalidException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException, UnregisteredRecipientException, InvalidStickerException {
 649         final var messageBuilder = SignalServiceDataMessage.newBuilder();
 650         applyMessage(messageBuilder, message);
 651         return sendMessage(messageBuilder, recipients, Optional.of(editTargetTimestamp));
 652     }
 653
 654     private void applyMessage(
 655             final SignalServiceDataMessage.Builder messageBuilder, final Message message
 656     ) throws AttachmentInvalidException, IOException, UnregisteredRecipientException, InvalidStickerException {
 657         if (message.messageText().length() > 2000) {
 658             final var messageBytes = message.messageText().getBytes(StandardCharsets.UTF_8);
 659             final var textAttachment = AttachmentUtils.createAttachmentStream(new StreamDetails(new ByteArrayInputStream(
 660                     messageBytes), MimeUtils.LONG_TEXT, messageBytes.length), Optional.empty());
 661             messageBuilder.withBody(message.messageText().substring(0, 2000));
 662             messageBuilder.withAttachment(context.getAttachmentHelper().uploadAttachment(textAttachment));
 663         } else {
 664             messageBuilder.withBody(message.messageText());
 665         }
 666         if (!message.attachments().isEmpty()) {
 667             messageBuilder.withAttachments(context.getAttachmentHelper().uploadAttachments(message.attachments()));
 668         }
 669         if (!message.mentions().isEmpty()) {
 670             messageBuilder.withMentions(resolveMentions(message.mentions()));
 671         }
 672         if (!message.textStyles().isEmpty()) {
 673             messageBuilder.withBodyRanges(message.textStyles().stream().map(TextStyle::toBodyRange).toList());
 674         }
 675         if (message.quote().isPresent()) {
 676             final var quote = message.quote().get();
 677             final var quotedAttachments = new ArrayList<SignalServiceDataMessage.Quote.QuotedAttachment>();
 678             for (final var a : quote.attachments()) {
 679                 final var quotedAttachment = new SignalServiceDataMessage.Quote.QuotedAttachment(a.contentType(),
 680                         a.filename(),
 681                         a.preview() == null ? null : context.getAttachmentHelper().uploadAttachment(a.preview()));
 682                 quotedAttachments.add(quotedAttachment);
 683             }
 684             messageBuilder.withQuote(new SignalServiceDataMessage.Quote(quote.timestamp(),
 685                     context.getRecipientHelper()
 686                             .resolveSignalServiceAddress(context.getRecipientHelper().resolveRecipient(quote.author()))
 687                             .getServiceId(),
 688                     quote.message(),
 689                     quotedAttachments,
 690                     resolveMentions(quote.mentions()),
 691                     SignalServiceDataMessage.Quote.Type.NORMAL,
 692                     quote.textStyles().stream().map(TextStyle::toBodyRange).toList()));
 693         }
 694         if (message.sticker().isPresent()) {
 695             final var sticker = message.sticker().get();
 696             final var packId = StickerPackId.deserialize(sticker.packId());
 697             final var stickerId = sticker.stickerId();
 698
 699             final var stickerPack = context.getAccount().getStickerStore().getStickerPack(packId);
 700             if (stickerPack == null) {
 701                 throw new InvalidStickerException("Sticker pack not found");
 702             }
 703             final var manifest = context.getStickerHelper().getOrRetrieveStickerPack(packId, stickerPack.packKey());
 704             if (manifest.stickers().size() <= stickerId) {
 705                 throw new InvalidStickerException("Sticker id not part of this pack");
 706             }
 707             final var manifestSticker = manifest.stickers().get(stickerId);
 708             final var streamDetails = context.getStickerPackStore().retrieveSticker(packId, stickerId);
 709             if (streamDetails == null) {
 710                 throw new InvalidStickerException("Missing local sticker file");
 711             }
 712             messageBuilder.withSticker(new SignalServiceDataMessage.Sticker(packId.serialize(),
 713                     stickerPack.packKey(),
 714                     stickerId,
 715                     manifestSticker.emoji(),
 716                     AttachmentUtils.createAttachmentStream(streamDetails, Optional.empty())));
 717         }
 718         if (!message.previews().isEmpty()) {
 719             final var previews = new ArrayList<SignalServicePreview>(message.previews().size());
 720             for (final var p : message.previews()) {
 721                 final var image = p.image().isPresent() ? context.getAttachmentHelper()
 722                         .uploadAttachment(p.image().get()) : null;
 723                 previews.add(new SignalServicePreview(p.url(),
 724                         p.title(),
 725                         p.description(),
 726                         0,
 727                         Optional.ofNullable(image)));
 728             }
 729             messageBuilder.withPreviews(previews);
 730         }
 731         if (message.storyReply().isPresent()) {
 732             final var storyReply = message.storyReply().get();
 733             final var authorServiceId = context.getRecipientHelper()
 734                     .resolveSignalServiceAddress(context.getRecipientHelper().resolveRecipient(storyReply.author()))
 735                     .getServiceId();
 736             messageBuilder.withStoryContext(new SignalServiceDataMessage.StoryContext(authorServiceId,
 737                     storyReply.timestamp()));
 738         }
 739     }
 740
 741     private ArrayList<SignalServiceDataMessage.Mention> resolveMentions(final List<Message.Mention> mentionList) throws UnregisteredRecipientException {
 742         final var mentions = new ArrayList<SignalServiceDataMessage.Mention>();
 743         for (final var m : mentionList) {
 744             final var recipientId = context.getRecipientHelper().resolveRecipient(m.recipient());
 745             mentions.add(new SignalServiceDataMessage.Mention(context.getRecipientHelper()
 746                     .resolveSignalServiceAddress(recipientId)
 747                     .getServiceId(), m.start(), m.length()));
 748         }
 749         return mentions;
 750     }
 751
 752     @Override
 753     public SendMessageResults sendRemoteDeleteMessage(
 754             long targetSentTimestamp, Set<RecipientIdentifier> recipients
 755     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException {
 756         var delete = new SignalServiceDataMessage.RemoteDelete(targetSentTimestamp);
 757         final var messageBuilder = SignalServiceDataMessage.newBuilder().withRemoteDelete(delete);
 758         for (final var recipient : recipients) {
 759             if (recipient instanceof RecipientIdentifier.Uuid u) {
 760                 account.getMessageSendLogStore()
 761                         .deleteEntryForRecipientNonGroup(targetSentTimestamp, ACI.from(u.uuid()));
 762             } else if (recipient instanceof RecipientIdentifier.Single r) {
 763                 try {
 764                     final var recipientId = context.getRecipientHelper().resolveRecipient(r);
 765                     final var address = account.getRecipientAddressResolver().resolveRecipientAddress(recipientId);
 766                     if (address.serviceId().isPresent()) {
 767                         account.getMessageSendLogStore()
 768                                 .deleteEntryForRecipientNonGroup(targetSentTimestamp, address.serviceId().get());
 769                     }
 770                 } catch (UnregisteredRecipientException ignored) {
 771                 }
 772             } else if (recipient instanceof RecipientIdentifier.Group r) {
 773                 account.getMessageSendLogStore().deleteEntryForGroup(targetSentTimestamp, r.groupId());
 774             }
 775         }
 776         return sendMessage(messageBuilder, recipients);
 777     }
 778
 779     @Override
 780     public SendMessageResults sendMessageReaction(
 781             String emoji,
 782             boolean remove,
 783             RecipientIdentifier.Single targetAuthor,
 784             long targetSentTimestamp,
 785             Set<RecipientIdentifier> recipients,
 786             final boolean isStory
 787     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException, UnregisteredRecipientException {
 788         var targetAuthorRecipientId = context.getRecipientHelper().resolveRecipient(targetAuthor);
 789         final var authorServiceId = context.getRecipientHelper()
 790                 .resolveSignalServiceAddress(targetAuthorRecipientId)
 791                 .getServiceId();
 792         var reaction = new SignalServiceDataMessage.Reaction(emoji, remove, authorServiceId, targetSentTimestamp);
 793         final var messageBuilder = SignalServiceDataMessage.newBuilder().withReaction(reaction);
 794         if (isStory) {
 795             messageBuilder.withStoryContext(new SignalServiceDataMessage.StoryContext(authorServiceId,
 796                     targetSentTimestamp));
 797         }
 798         return sendMessage(messageBuilder, recipients);
 799     }
 800
 801     @Override
 802     public SendMessageResults sendPaymentNotificationMessage(
 803             byte[] receipt, String note, RecipientIdentifier.Single recipient
 804     ) throws IOException {
 805         final var paymentNotification = new SignalServiceDataMessage.PaymentNotification(receipt, note);
 806         final var payment = new SignalServiceDataMessage.Payment(paymentNotification, null);
 807         final var messageBuilder = SignalServiceDataMessage.newBuilder().withPayment(payment);
 808         try {
 809             return sendMessage(messageBuilder, Set.of(recipient));
 810         } catch (NotAGroupMemberException | GroupNotFoundException | GroupSendingNotAllowedException e) {
 811             throw new AssertionError(e);
 812         }
 813     }
 814
 815     @Override
 816     public SendMessageResults sendEndSessionMessage(Set<RecipientIdentifier.Single> recipients) throws IOException {
 817         var messageBuilder = SignalServiceDataMessage.newBuilder().asEndSessionMessage();
 818
 819         try {
 820             return sendMessage(messageBuilder,
 821                     recipients.stream().map(RecipientIdentifier.class::cast).collect(Collectors.toSet()));
 822         } catch (GroupNotFoundException | NotAGroupMemberException | GroupSendingNotAllowedException e) {
 823             throw new AssertionError(e);
 824         } finally {
 825             for (var recipient : recipients) {
 826                 final RecipientId recipientId;
 827                 try {
 828                     recipientId = context.getRecipientHelper().resolveRecipient(recipient);
 829                 } catch (UnregisteredRecipientException e) {
 830                     continue;
 831                 }
 832                 final var serviceId = context.getAccount()
 833                         .getRecipientAddressResolver()
 834                         .resolveRecipientAddress(recipientId)
 835                         .serviceId();
 836                 if (serviceId.isPresent()) {
 837                     account.getAccountData(ServiceIdType.ACI).getSessionStore().deleteAllSessions(serviceId.get());
 838                 }
 839             }
 840         }
 841     }
 842
 843     @Override
 844     public void deleteRecipient(final RecipientIdentifier.Single recipient) {
 845         final var recipientIdOptional = context.getRecipientHelper().resolveRecipientOptional(recipient);
 846         if (recipientIdOptional.isPresent()) {
 847             account.removeRecipient(recipientIdOptional.get());
 848         }
 849     }
 850
 851     @Override
 852     public void deleteContact(final RecipientIdentifier.Single recipient) {
 853         final var recipientIdOptional = context.getRecipientHelper().resolveRecipientOptional(recipient);
 854         if (recipientIdOptional.isPresent()) {
 855             account.getContactStore().deleteContact(recipientIdOptional.get());
 856         }
 857     }
 858
 859     @Override
 860     public void setContactName(
 861             RecipientIdentifier.Single recipient, String givenName, final String familyName
 862     ) throws NotPrimaryDeviceException, UnregisteredRecipientException {
 863         if (!account.isPrimaryDevice()) {
 864             throw new NotPrimaryDeviceException();
 865         }
 866         context.getContactHelper()
 867                 .setContactName(context.getRecipientHelper().resolveRecipient(recipient), givenName, familyName);
 868     }
 869
 870     @Override
 871     public void setContactsBlocked(
 872             Collection<RecipientIdentifier.Single> recipients, boolean blocked
 873     ) throws NotPrimaryDeviceException, IOException, UnregisteredRecipientException {
 874         if (!account.isPrimaryDevice()) {
 875             throw new NotPrimaryDeviceException();
 876         }
 877         if (recipients.isEmpty()) {
 878             return;
 879         }
 880         final var recipientIds = context.getRecipientHelper().resolveRecipients(recipients);
 881         final var selfRecipientId = account.getSelfRecipientId();
 882         boolean shouldRotateProfileKey = false;
 883         for (final var recipientId : recipientIds) {
 884             if (context.getContactHelper().isContactBlocked(recipientId) == blocked) {
 885                 continue;
 886             }
 887             context.getContactHelper().setContactBlocked(recipientId, blocked);
 888             // if we don't have a common group with the blocked contact we need to rotate the profile key
 889             shouldRotateProfileKey = blocked && (
 890                     shouldRotateProfileKey || account.getGroupStore()
 891                             .getGroups()
 892                             .stream()
 893                             .noneMatch(g -> g.isMember(selfRecipientId) && g.isMember(recipientId))
 894             );
 895         }
 896         if (shouldRotateProfileKey) {
 897             context.getProfileHelper().rotateProfileKey();
 898         }
 899         context.getSyncHelper().sendBlockedList();
 900     }
 901
 902     @Override
 903     public void setGroupsBlocked(
 904             final Collection<GroupId> groupIds, final boolean blocked
 905     ) throws GroupNotFoundException, NotPrimaryDeviceException, IOException {
 906         if (!account.isPrimaryDevice()) {
 907             throw new NotPrimaryDeviceException();
 908         }
 909         if (groupIds.isEmpty()) {
 910             return;
 911         }
 912         boolean shouldRotateProfileKey = false;
 913         for (final var groupId : groupIds) {
 914             if (context.getGroupHelper().isGroupBlocked(groupId) == blocked) {
 915                 continue;
 916             }
 917             context.getGroupHelper().setGroupBlocked(groupId, blocked);
 918             shouldRotateProfileKey = blocked;
 919         }
 920         if (shouldRotateProfileKey) {
 921             context.getProfileHelper().rotateProfileKey();
 922         }
 923         context.getSyncHelper().sendBlockedList();
 924     }
 925
 926     @Override
 927     public void setExpirationTimer(
 928             RecipientIdentifier.Single recipient, int messageExpirationTimer
 929     ) throws IOException, UnregisteredRecipientException {
 930         var recipientId = context.getRecipientHelper().resolveRecipient(recipient);
 931         context.getContactHelper().setExpirationTimer(recipientId, messageExpirationTimer);
 932         final var messageBuilder = SignalServiceDataMessage.newBuilder().asExpirationUpdate();
 933         try {
 934             sendMessage(messageBuilder, Set.of(recipient));
 935         } catch (NotAGroupMemberException | GroupNotFoundException | GroupSendingNotAllowedException e) {
 936             throw new AssertionError(e);
 937         }
 938     }
 939
 940     @Override
 941     public StickerPackUrl uploadStickerPack(File path) throws IOException, StickerPackInvalidException {
 942         var manifest = StickerUtils.getSignalServiceStickerManifestUpload(path);
 943
 944         var messageSender = dependencies.getMessageSender();
 945
 946         var packKey = KeyUtils.createStickerUploadKey();
 947         var packIdString = messageSender.uploadStickerManifest(manifest, packKey);
 948         var packId = StickerPackId.deserialize(Hex.fromStringCondensed(packIdString));
 949
 950         var sticker = new StickerPack(packId, packKey);
 951         account.getStickerStore().addStickerPack(sticker);
 952         context.getSyncHelper().sendStickerOperationsMessage(List.of(sticker), List.of());
 953
 954         return new StickerPackUrl(packId, packKey);
 955     }
 956
 957     @Override
 958     public void installStickerPack(StickerPackUrl url) throws IOException {
 959         final var packId = url.packId();
 960         final var packKey = url.packKey();
 961         try {
 962             context.getStickerHelper().retrieveStickerPack(packId, packKey);
 963         } catch (InvalidMessageException e) {
 964             throw new IOException(e);
 965         }
 966
 967         final var sticker = context.getStickerHelper().addOrUpdateStickerPack(packId, packKey, true);
 968         context.getSyncHelper().sendStickerOperationsMessage(List.of(sticker), List.of());
 969     }
 970
 971     @Override
 972     public List<org.asamk.signal.manager.api.StickerPack> getStickerPacks() {
 973         final var stickerPackStore = context.getStickerPackStore();
 974         return account.getStickerStore().getStickerPacks().stream().map(pack -> {
 975             if (stickerPackStore.existsStickerPack(pack.packId())) {
 976                 try {
 977                     final var manifest = stickerPackStore.retrieveManifest(pack.packId());
 978                     return new org.asamk.signal.manager.api.StickerPack(pack.packId(),
 979                             new StickerPackUrl(pack.packId(), pack.packKey()),
 980                             pack.isInstalled(),
 981                             manifest.title(),
 982                             manifest.author(),
 983                             Optional.ofNullable(manifest.cover() == null ? null : manifest.cover().toApi()),
 984                             manifest.stickers().stream().map(JsonStickerPack.JsonSticker::toApi).toList());
 985                 } catch (Exception e) {
 986                     logger.warn("Failed to read local sticker pack manifest: {}", e.getMessage(), e);
 987                 }
 988             }
 989
 990             return new org.asamk.signal.manager.api.StickerPack(pack.packId(), pack.packKey(), pack.isInstalled());
 991         }).toList();
 992     }
 993
 994     @Override
 995     public void requestAllSyncData() throws IOException {
 996         context.getSyncHelper().requestAllSyncData();
 997         retrieveRemoteStorage();
 998     }
 999
1000     void retrieveRemoteStorage() throws IOException {
1001         context.getStorageHelper().readDataFromStorage();
1002     }
1003
1004     @Override
1005     public void addReceiveHandler(final ReceiveMessageHandler handler, final boolean isWeakListener) {
1006         synchronized (messageHandlers) {
1007             if (isWeakListener) {
1008                 weakHandlers.add(handler);
1009             } else {
1010                 messageHandlers.add(handler);
1011                 startReceiveThreadIfRequired();
1012             }
1013         }
1014     }
1015
1016     private static final AtomicInteger threadNumber = new AtomicInteger(0);
1017
1018     private void startReceiveThreadIfRequired() {
1019         if (receiveThread != null || isReceivingSynchronous) {
1020             return;
1021         }
1022         receiveThread = Thread.ofPlatform().name("receive-" + threadNumber.getAndIncrement()).start(() -> {
1023             logger.debug("Starting receiving messages");
1024             context.getReceiveHelper().receiveMessagesContinuously(this::passReceivedMessageToHandlers);
1025             logger.debug("Finished receiving messages");
1026             synchronized (messageHandlers) {
1027                 receiveThread = null;
1028
1029                 // Check if in the meantime another handler has been registered
1030                 if (!messageHandlers.isEmpty()) {
1031                     logger.debug("Another handler has been registered, starting receive thread again");
1032                     startReceiveThreadIfRequired();
1033                 }
1034             }
1035         });
1036     }
1037
1038     private void passReceivedMessageToHandlers(MessageEnvelope envelope, Throwable e) {
1039         synchronized (messageHandlers) {
1040             Stream.concat(messageHandlers.stream(), weakHandlers.stream()).forEach(h -> {
1041                 try {
1042                     h.handleMessage(envelope, e);
1043                 } catch (Throwable ex) {
1044                     logger.warn("Message handler failed, ignoring", ex);
1045                 }
1046             });
1047         }
1048     }
1049
1050     @Override
1051     public void removeReceiveHandler(final ReceiveMessageHandler handler) {
1052         final Thread thread;
1053         synchronized (messageHandlers) {
1054             weakHandlers.remove(handler);
1055             messageHandlers.remove(handler);
1056             if (!messageHandlers.isEmpty() || receiveThread == null || isReceivingSynchronous) {
1057                 return;
1058             }
1059             thread = receiveThread;
1060             receiveThread = null;
1061         }
1062
1063         stopReceiveThread(thread);
1064     }
1065
1066     private void stopReceiveThread(final Thread thread) {
1067         if (context.getReceiveHelper().requestStopReceiveMessages()) {
1068             logger.debug("Receive stop requested, interrupting read from server.");
1069             thread.interrupt();
1070         }
1071         try {
1072             thread.join();
1073         } catch (InterruptedException ignored) {
1074         }
1075     }
1076
1077     @Override
1078     public boolean isReceiving() {
1079         if (isReceivingSynchronous) {
1080             return true;
1081         }
1082         synchronized (messageHandlers) {
1083             return !messageHandlers.isEmpty();
1084         }
1085     }
1086
1087     @Override
1088     public void receiveMessages(
1089             Optional<Duration> timeout, Optional<Integer> maxMessages, ReceiveMessageHandler handler
1090     ) throws IOException, AlreadyReceivingException {
1091         receiveMessages(timeout.orElse(Duration.ofMinutes(1)), timeout.isPresent(), maxMessages.orElse(null), handler);
1092     }
1093
1094     private void receiveMessages(
1095             Duration timeout, boolean returnOnTimeout, Integer maxMessages, ReceiveMessageHandler handler
1096     ) throws IOException, AlreadyReceivingException {
1097         synchronized (messageHandlers) {
1098             if (isReceiving()) {
1099                 throw new AlreadyReceivingException("Already receiving message.");
1100             }
1101             isReceivingSynchronous = true;
1102             receiveThread = Thread.currentThread();
1103         }
1104         try {
1105             context.getReceiveHelper().receiveMessages(timeout, returnOnTimeout, maxMessages, (envelope, e) -> {
1106                 passReceivedMessageToHandlers(envelope, e);
1107                 handler.handleMessage(envelope, e);
1108             });
1109         } finally {
1110             synchronized (messageHandlers) {
1111                 receiveThread = null;
1112                 isReceivingSynchronous = false;
1113                 if (!messageHandlers.isEmpty()) {
1114                     startReceiveThreadIfRequired();
1115                 }
1116             }
1117         }
1118     }
1119
1120     @Override
1121     public void setReceiveConfig(final ReceiveConfig receiveConfig) {
1122         context.getReceiveHelper().setReceiveConfig(receiveConfig);
1123     }
1124
1125     @Override
1126     public boolean isContactBlocked(final RecipientIdentifier.Single recipient) {
1127         final RecipientId recipientId;
1128         try {
1129             recipientId = context.getRecipientHelper().resolveRecipient(recipient);
1130         } catch (UnregisteredRecipientException e) {
1131             return false;
1132         }
1133         return context.getContactHelper().isContactBlocked(recipientId);
1134     }
1135
1136     @Override
1137     public void sendContacts() throws IOException {
1138         context.getSyncHelper().sendContacts();
1139     }
1140
1141     @Override
1142     public List<Recipient> getRecipients(
1143             boolean onlyContacts,
1144             Optional<Boolean> blocked,
1145             Collection<RecipientIdentifier.Single> recipients,
1146             Optional<String> name
1147     ) {
1148         final var recipientIds = recipients.stream().map(a -> {
1149             try {
1150                 return context.getRecipientHelper().resolveRecipient(a);
1151             } catch (UnregisteredRecipientException e) {
1152                 return null;
1153             }
1154         }).filter(Objects::nonNull).collect(Collectors.toSet());
1155         if (!recipients.isEmpty() && recipientIds.isEmpty()) {
1156             return List.of();
1157         }
1158         // refresh profiles of explicitly given recipients
1159         context.getProfileHelper().refreshRecipientProfiles(recipientIds);
1160         return account.getRecipientStore()
1161                 .getRecipients(onlyContacts, blocked, recipientIds, name)
1162                 .stream()
1163                 .map(s -> new Recipient(s.getRecipientId(),
1164                         s.getAddress().toApiRecipientAddress(),
1165                         s.getContact(),
1166                         s.getProfileKey(),
1167                         s.getExpiringProfileKeyCredential(),
1168                         s.getProfile()))
1169                 .toList();
1170     }
1171
1172     @Override
1173     public String getContactOrProfileName(RecipientIdentifier.Single recipient) {
1174         final RecipientId recipientId;
1175         try {
1176             recipientId = context.getRecipientHelper().resolveRecipient(recipient);
1177         } catch (UnregisteredRecipientException e) {
1178             return null;
1179         }
1180
1181         final var contact = account.getContactStore().getContact(recipientId);
1182         if (contact != null && !Util.isEmpty(contact.getName())) {
1183             return contact.getName();
1184         }
1185
1186         final var profile = context.getProfileHelper().getRecipientProfile(recipientId);
1187         if (profile != null) {
1188             return profile.getDisplayName();
1189         }
1190
1191         return null;
1192     }
1193
1194     @Override
1195     public Group getGroup(GroupId groupId) {
1196         return toGroup(context.getGroupHelper().getGroup(groupId));
1197     }
1198
1199     @Override
1200     public List<Identity> getIdentities() {
1201         return account.getIdentityKeyStore()
1202                 .getIdentities()
1203                 .stream()
1204                 .map(this::toIdentity)
1205                 .filter(Objects::nonNull)
1206                 .toList();
1207     }
1208
1209     private Identity toIdentity(final IdentityInfo identityInfo) {
1210         if (identityInfo == null) {
1211             return null;
1212         }
1213
1214         final var address = account.getRecipientAddressResolver()
1215                 .resolveRecipientAddress(account.getRecipientResolver().resolveRecipient(identityInfo.getServiceId()));
1216         if (address.serviceId().isPresent() && !Objects.equals(address.serviceId().get(),
1217                 identityInfo.getServiceId())) {
1218             return null;
1219         }
1220         final var scannableFingerprint = context.getIdentityHelper()
1221                 .computeSafetyNumberForScanning(identityInfo.getServiceId(), identityInfo.getIdentityKey());
1222         return new Identity(address.toApiRecipientAddress(),
1223                 identityInfo.getIdentityKey(),
1224                 context.getIdentityHelper()
1225                         .computeSafetyNumber(identityInfo.getServiceId(), identityInfo.getIdentityKey()),
1226                 scannableFingerprint == null ? null : scannableFingerprint.getSerialized(),
1227                 identityInfo.getTrustLevel(),
1228                 identityInfo.getDateAddedTimestamp());
1229     }
1230
1231     @Override
1232     public List<Identity> getIdentities(RecipientIdentifier.Single recipient) {
1233         ServiceId serviceId;
1234         try {
1235             final var address = account.getRecipientAddressResolver()
1236                     .resolveRecipientAddress(context.getRecipientHelper().resolveRecipient(recipient));
1237             if (address.serviceId().isEmpty()) {
1238                 return List.of();
1239             }
1240             serviceId = address.serviceId().get();
1241         } catch (UnregisteredRecipientException e) {
1242             return List.of();
1243         }
1244         final var identity = account.getIdentityKeyStore().getIdentityInfo(serviceId);
1245         return identity == null ? List.of() : List.of(toIdentity(identity));
1246     }
1247
1248     @Override
1249     public boolean trustIdentityVerified(
1250             RecipientIdentifier.Single recipient, IdentityVerificationCode verificationCode
1251     ) throws UnregisteredRecipientException {
1252         return switch (verificationCode) {
1253             case IdentityVerificationCode.Fingerprint fingerprint -> trustIdentity(recipient,
1254                     r -> context.getIdentityHelper().trustIdentityVerified(r, fingerprint.fingerprint()));
1255             case IdentityVerificationCode.SafetyNumber safetyNumber -> trustIdentity(recipient,
1256                     r -> context.getIdentityHelper().trustIdentityVerifiedSafetyNumber(r, safetyNumber.safetyNumber()));
1257             case IdentityVerificationCode.ScannableSafetyNumber safetyNumber -> trustIdentity(recipient,
1258                     r -> context.getIdentityHelper().trustIdentityVerifiedSafetyNumber(r, safetyNumber.safetyNumber()));
1259             case null, default -> throw new AssertionError("Invalid verification code type");
1260         };
1261     }
1262
1263     @Override
1264     public boolean trustIdentityAllKeys(RecipientIdentifier.Single recipient) throws UnregisteredRecipientException {
1265         return trustIdentity(recipient, r -> context.getIdentityHelper().trustIdentityAllKeys(r));
1266     }
1267
1268     private boolean trustIdentity(
1269             RecipientIdentifier.Single recipient, Function<RecipientId, Boolean> trustMethod
1270     ) throws UnregisteredRecipientException {
1271         final var recipientId = context.getRecipientHelper().resolveRecipient(recipient);
1272         final var updated = trustMethod.apply(recipientId);
1273         if (updated && this.isReceiving()) {
1274             context.getReceiveHelper().setNeedsToRetryFailedMessages(true);
1275         }
1276         return updated;
1277     }
1278
1279     @Override
1280     public void addAddressChangedListener(final Runnable listener) {
1281         synchronized (addressChangedListeners) {
1282             addressChangedListeners.add(listener);
1283         }
1284     }
1285
1286     @Override
1287     public void addClosedListener(final Runnable listener) {
1288         synchronized (closedListeners) {
1289             closedListeners.add(listener);
1290         }
1291     }
1292
1293     @Override
1294     public InputStream retrieveAttachment(final String id) throws IOException {
1295         return context.getAttachmentHelper().retrieveAttachment(id).getStream();
1296     }
1297
1298     @Override
1299     public void close() {
1300         Thread thread;
1301         synchronized (messageHandlers) {
1302             weakHandlers.clear();
1303             messageHandlers.clear();
1304             thread = receiveThread;
1305             receiveThread = null;
1306         }
1307         if (thread != null) {
1308             stopReceiveThread(thread);
1309         }
1310         executor.close();
1311
1312         dependencies.getSignalWebSocket().disconnect();
1313         disposable.dispose();
1314
1315         if (account != null) {
1316             account.close();
1317         }
1318
1319         synchronized (closedListeners) {
1320             closedListeners.forEach(Runnable::run);
1321             closedListeners.clear();
1322         }
1323
1324         account = null;
1325     }
1326 }