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