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             context.getAccountHelper().checkWhoAmiI();
 231         }
 232     }
 233
 234     @Override
 235     public Map<String, UserStatus> getUserStatus(Set<String> numbers) throws IOException, RateLimitException {
 236         final var canonicalizedNumbers = numbers.stream().collect(Collectors.toMap(n -> n, n -> {
 237             try {
 238                 final var canonicalizedNumber = PhoneNumberFormatter.formatNumber(n, account.getNumber());
 239                 if (!canonicalizedNumber.equals(n)) {
 240                     logger.debug("Normalized number {} to {}.", n, canonicalizedNumber);
 241                 }
 242                 return canonicalizedNumber;
 243             } catch (InvalidNumberException e) {
 244                 return "";
 245             }
 246         }));
 247
 248         // Note "registeredUsers" has no optionals. It only gives us info on users who are registered
 249         final var canonicalizedNumbersSet = canonicalizedNumbers.values()
 250                 .stream()
 251                 .filter(s -> !s.isEmpty())
 252                 .collect(Collectors.toSet());
 253
 254         final Map<String, RegisteredUser> registeredUsers;
 255         try {
 256             registeredUsers = context.getRecipientHelper().getRegisteredUsers(canonicalizedNumbersSet);
 257         } catch (CdsiResourceExhaustedException e) {
 258             logger.debug("CDSI resource exhausted: {}", e.getMessage());
 259             throw new RateLimitException(System.currentTimeMillis() + e.getRetryAfterSeconds() * 1000L);
 260         }
 261
 262         return numbers.stream().collect(Collectors.toMap(n -> n, n -> {
 263             final var number = canonicalizedNumbers.get(n);
 264             final var user = registeredUsers.get(number);
 265             final var serviceId = user == null ? null : user.getServiceId();
 266             final var profile = serviceId == null
 267                     ? null
 268                     : context.getProfileHelper()
 269                             .getRecipientProfile(account.getRecipientResolver().resolveRecipient(serviceId));
 270             return new UserStatus(number.isEmpty() ? null : number,
 271                     serviceId == null ? null : serviceId.getRawUuid(),
 272                     profile != null
 273                             && profile.getUnidentifiedAccessMode() == Profile.UnidentifiedAccessMode.UNRESTRICTED);
 274         }));
 275     }
 276
 277     @Override
 278     public void updateAccountAttributes(String deviceName) throws IOException {
 279         if (deviceName != null) {
 280             context.getAccountHelper().setDeviceName(deviceName);
 281         }
 282         context.getAccountHelper().updateAccountAttributes();
 283         context.getAccountHelper().checkWhoAmiI();
 284     }
 285
 286     @Override
 287     public Configuration getConfiguration() {
 288         final var configurationStore = account.getConfigurationStore();
 289         return Configuration.from(configurationStore);
 290     }
 291
 292     @Override
 293     public void updateConfiguration(
 294             Configuration configuration
 295     ) throws NotPrimaryDeviceException {
 296         if (!account.isPrimaryDevice()) {
 297             throw new NotPrimaryDeviceException();
 298         }
 299
 300         final var configurationStore = account.getConfigurationStore();
 301         if (configuration.readReceipts().isPresent()) {
 302             configurationStore.setReadReceipts(configuration.readReceipts().get());
 303         }
 304         if (configuration.unidentifiedDeliveryIndicators().isPresent()) {
 305             configurationStore.setUnidentifiedDeliveryIndicators(configuration.unidentifiedDeliveryIndicators().get());
 306         }
 307         if (configuration.typingIndicators().isPresent()) {
 308             configurationStore.setTypingIndicators(configuration.typingIndicators().get());
 309         }
 310         if (configuration.linkPreviews().isPresent()) {
 311             configurationStore.setLinkPreviews(configuration.linkPreviews().get());
 312         }
 313         context.getSyncHelper().sendConfigurationMessage();
 314     }
 315
 316     @Override
 317     public void updateProfile(UpdateProfile updateProfile) throws IOException {
 318         context.getProfileHelper()
 319                 .setProfile(updateProfile.getGivenName(),
 320                         updateProfile.getFamilyName(),
 321                         updateProfile.getAbout(),
 322                         updateProfile.getAboutEmoji(),
 323                         updateProfile.isDeleteAvatar()
 324                                 ? Optional.empty()
 325                                 : updateProfile.getAvatar() == null ? null : Optional.of(updateProfile.getAvatar()),
 326                         updateProfile.getMobileCoinAddress());
 327         context.getSyncHelper().sendSyncFetchProfileMessage();
 328     }
 329
 330     void refreshCurrentUsername() throws IOException, BaseUsernameException {
 331         context.getAccountHelper().refreshCurrentUsername();
 332     }
 333
 334     @Override
 335     public String setUsername(final String username) throws IOException, InvalidUsernameException {
 336         try {
 337             return context.getAccountHelper().reserveUsername(username);
 338         } catch (BaseUsernameException e) {
 339             throw new InvalidUsernameException(e.getMessage() + " (" + e.getClass().getSimpleName() + ")", e);
 340         }
 341     }
 342
 343     @Override
 344     public void deleteUsername() throws IOException {
 345         context.getAccountHelper().deleteUsername();
 346     }
 347
 348     @Override
 349     public void startChangeNumber(
 350             String newNumber, boolean voiceVerification, String captcha
 351     ) throws RateLimitException, IOException, CaptchaRequiredException, NonNormalizedPhoneNumberException, NotPrimaryDeviceException {
 352         if (!account.isPrimaryDevice()) {
 353             throw new NotPrimaryDeviceException();
 354         }
 355         context.getAccountHelper().startChangeNumber(newNumber, voiceVerification, captcha);
 356     }
 357
 358     @Override
 359     public void finishChangeNumber(
 360             String newNumber, String verificationCode, String pin
 361     ) throws IncorrectPinException, PinLockedException, IOException, NotPrimaryDeviceException {
 362         if (!account.isPrimaryDevice()) {
 363             throw new NotPrimaryDeviceException();
 364         }
 365         context.getAccountHelper().finishChangeNumber(newNumber, verificationCode, pin);
 366     }
 367
 368     @Override
 369     public void unregister() throws IOException {
 370         context.getAccountHelper().unregister();
 371     }
 372
 373     @Override
 374     public void deleteAccount() throws IOException {
 375         context.getAccountHelper().deleteAccount();
 376     }
 377
 378     @Override
 379     public void submitRateLimitRecaptchaChallenge(String challenge, String captcha) throws IOException {
 380         captcha = captcha == null ? null : captcha.replace("signalcaptcha://", "");
 381
 382         dependencies.getAccountManager().submitRateLimitRecaptchaChallenge(challenge, captcha);
 383     }
 384
 385     @Override
 386     public List<Device> getLinkedDevices() throws IOException {
 387         var devices = dependencies.getAccountManager().getDevices();
 388         account.setMultiDevice(devices.size() > 1);
 389         var identityKey = account.getAciIdentityKeyPair().getPrivateKey();
 390         return devices.stream().map(d -> {
 391             String deviceName = d.getName();
 392             if (deviceName != null) {
 393                 try {
 394                     deviceName = DeviceNameUtil.decryptDeviceName(deviceName, identityKey);
 395                 } catch (IOException e) {
 396                     logger.debug("Failed to decrypt device name, maybe plain text?", e);
 397                 }
 398             }
 399             return new Device(d.getId(),
 400                     deviceName,
 401                     d.getCreated(),
 402                     d.getLastSeen(),
 403                     d.getId() == account.getDeviceId());
 404         }).toList();
 405     }
 406
 407     @Override
 408     public void removeLinkedDevices(int deviceId) throws IOException {
 409         context.getAccountHelper().removeLinkedDevices(deviceId);
 410     }
 411
 412     @Override
 413     public void addDeviceLink(DeviceLinkUrl linkUrl) throws IOException, InvalidDeviceLinkException, NotPrimaryDeviceException {
 414         if (!account.isPrimaryDevice()) {
 415             throw new NotPrimaryDeviceException();
 416         }
 417         context.getAccountHelper().addDevice(linkUrl);
 418     }
 419
 420     @Override
 421     public void setRegistrationLockPin(Optional<String> pin) throws IOException, NotPrimaryDeviceException {
 422         if (!account.isPrimaryDevice()) {
 423             throw new NotPrimaryDeviceException();
 424         }
 425         if (pin.isPresent()) {
 426             context.getAccountHelper().setRegistrationPin(pin.get());
 427         } else {
 428             context.getAccountHelper().removeRegistrationPin();
 429         }
 430     }
 431
 432     void refreshPreKeys() throws IOException {
 433         context.getPreKeyHelper().refreshPreKeysIfNecessary();
 434     }
 435
 436     @Override
 437     public List<Group> getGroups() {
 438         return account.getGroupStore().getGroups().stream().map(this::toGroup).toList();
 439     }
 440
 441     private Group toGroup(final GroupInfo groupInfo) {
 442         if (groupInfo == null) {
 443             return null;
 444         }
 445
 446         return Group.from(groupInfo, account.getRecipientAddressResolver(), account.getSelfRecipientId());
 447     }
 448
 449     @Override
 450     public SendGroupMessageResults quitGroup(
 451             GroupId groupId, Set<RecipientIdentifier.Single> groupAdmins
 452     ) throws GroupNotFoundException, IOException, NotAGroupMemberException, LastGroupAdminException, UnregisteredRecipientException {
 453         final var newAdmins = context.getRecipientHelper().resolveRecipients(groupAdmins);
 454         return context.getGroupHelper().quitGroup(groupId, newAdmins);
 455     }
 456
 457     @Override
 458     public void deleteGroup(GroupId groupId) throws IOException {
 459         final var group = context.getGroupHelper().getGroup(groupId);
 460         if (group.isMember(account.getSelfRecipientId())) {
 461             throw new IOException(
 462                     "The local group information cannot be removed, as the user is still a member of the group");
 463         }
 464         context.getGroupHelper().deleteGroup(groupId);
 465     }
 466
 467     @Override
 468     public Pair<GroupId, SendGroupMessageResults> createGroup(
 469             String name, Set<RecipientIdentifier.Single> members, String avatarFile
 470     ) throws IOException, AttachmentInvalidException, UnregisteredRecipientException {
 471         return context.getGroupHelper()
 472                 .createGroup(name,
 473                         members == null ? null : context.getRecipientHelper().resolveRecipients(members),
 474                         avatarFile);
 475     }
 476
 477     @Override
 478     public SendGroupMessageResults updateGroup(
 479             final GroupId groupId, final UpdateGroup updateGroup
 480     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException, GroupSendingNotAllowedException, UnregisteredRecipientException {
 481         return context.getGroupHelper()
 482                 .updateGroup(groupId,
 483                         updateGroup.getName(),
 484                         updateGroup.getDescription(),
 485                         updateGroup.getMembers() == null
 486                                 ? null
 487                                 : context.getRecipientHelper().resolveRecipients(updateGroup.getMembers()),
 488                         updateGroup.getRemoveMembers() == null
 489                                 ? null
 490                                 : context.getRecipientHelper().resolveRecipients(updateGroup.getRemoveMembers()),
 491                         updateGroup.getAdmins() == null
 492                                 ? null
 493                                 : context.getRecipientHelper().resolveRecipients(updateGroup.getAdmins()),
 494                         updateGroup.getRemoveAdmins() == null
 495                                 ? null
 496                                 : context.getRecipientHelper().resolveRecipients(updateGroup.getRemoveAdmins()),
 497                         updateGroup.getBanMembers() == null
 498                                 ? null
 499                                 : context.getRecipientHelper().resolveRecipients(updateGroup.getBanMembers()),
 500                         updateGroup.getUnbanMembers() == null
 501                                 ? null
 502                                 : context.getRecipientHelper().resolveRecipients(updateGroup.getUnbanMembers()),
 503                         updateGroup.isResetGroupLink(),
 504                         updateGroup.getGroupLinkState(),
 505                         updateGroup.getAddMemberPermission(),
 506                         updateGroup.getEditDetailsPermission(),
 507                         updateGroup.getAvatarFile(),
 508                         updateGroup.getExpirationTimer(),
 509                         updateGroup.getIsAnnouncementGroup());
 510     }
 511
 512     @Override
 513     public Pair<GroupId, SendGroupMessageResults> joinGroup(
 514             GroupInviteLinkUrl inviteLinkUrl
 515     ) throws IOException, InactiveGroupLinkException, PendingAdminApprovalException {
 516         return context.getGroupHelper().joinGroup(inviteLinkUrl);
 517     }
 518
 519     private SendMessageResults sendMessage(
 520             SignalServiceDataMessage.Builder messageBuilder, Set<RecipientIdentifier> recipients
 521     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException {
 522         return sendMessage(messageBuilder, recipients, Optional.empty());
 523     }
 524
 525     private SendMessageResults sendMessage(
 526             SignalServiceDataMessage.Builder messageBuilder,
 527             Set<RecipientIdentifier> recipients,
 528             Optional<Long> editTargetTimestamp
 529     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException {
 530         var results = new HashMap<RecipientIdentifier, List<SendMessageResult>>();
 531         long timestamp = System.currentTimeMillis();
 532         messageBuilder.withTimestamp(timestamp);
 533         for (final var recipient : recipients) {
 534             if (recipient instanceof RecipientIdentifier.Single single) {
 535                 try {
 536                     final var recipientId = context.getRecipientHelper().resolveRecipient(single);
 537                     final var result = context.getSendHelper()
 538                             .sendMessage(messageBuilder, recipientId, editTargetTimestamp);
 539                     results.put(recipient, List.of(toSendMessageResult(result)));
 540                 } catch (UnregisteredRecipientException e) {
 541                     results.put(recipient,
 542                             List.of(SendMessageResult.unregisteredFailure(single.toPartialRecipientAddress())));
 543                 }
 544             } else if (recipient instanceof RecipientIdentifier.NoteToSelf) {
 545                 final var result = context.getSendHelper().sendSelfMessage(messageBuilder, editTargetTimestamp);
 546                 results.put(recipient, List.of(toSendMessageResult(result)));
 547             } else if (recipient instanceof RecipientIdentifier.Group group) {
 548                 final var result = context.getSendHelper()
 549                         .sendAsGroupMessage(messageBuilder, group.groupId(), editTargetTimestamp);
 550                 results.put(recipient, result.stream().map(this::toSendMessageResult).toList());
 551             }
 552         }
 553         return new SendMessageResults(timestamp, results);
 554     }
 555
 556     private SendMessageResult toSendMessageResult(final org.whispersystems.signalservice.api.messages.SendMessageResult result) {
 557         return SendMessageResult.from(result, account.getRecipientResolver(), account.getRecipientAddressResolver());
 558     }
 559
 560     private SendMessageResults sendTypingMessage(
 561             SignalServiceTypingMessage.Action action, Set<RecipientIdentifier> recipients
 562     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException {
 563         var results = new HashMap<RecipientIdentifier, List<SendMessageResult>>();
 564         final var timestamp = System.currentTimeMillis();
 565         for (var recipient : recipients) {
 566             if (recipient instanceof RecipientIdentifier.Single single) {
 567                 final var message = new SignalServiceTypingMessage(action, timestamp, Optional.empty());
 568                 try {
 569                     final var recipientId = context.getRecipientHelper().resolveRecipient(single);
 570                     final var result = context.getSendHelper().sendTypingMessage(message, recipientId);
 571                     results.put(recipient, List.of(toSendMessageResult(result)));
 572                 } catch (UnregisteredRecipientException e) {
 573                     results.put(recipient,
 574                             List.of(SendMessageResult.unregisteredFailure(single.toPartialRecipientAddress())));
 575                 }
 576             } else if (recipient instanceof RecipientIdentifier.Group) {
 577                 final var groupId = ((RecipientIdentifier.Group) recipient).groupId();
 578                 final var message = new SignalServiceTypingMessage(action, timestamp, Optional.of(groupId.serialize()));
 579                 final var result = context.getSendHelper().sendGroupTypingMessage(message, groupId);
 580                 results.put(recipient, result.stream().map(this::toSendMessageResult).toList());
 581             }
 582         }
 583         return new SendMessageResults(timestamp, results);
 584     }
 585
 586     @Override
 587     public SendMessageResults sendTypingMessage(
 588             TypingAction action, Set<RecipientIdentifier> recipients
 589     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException {
 590         return sendTypingMessage(action.toSignalService(), recipients);
 591     }
 592
 593     @Override
 594     public SendMessageResults sendReadReceipt(
 595             RecipientIdentifier.Single sender, List<Long> messageIds
 596     ) {
 597         final var timestamp = System.currentTimeMillis();
 598         var receiptMessage = new SignalServiceReceiptMessage(SignalServiceReceiptMessage.Type.READ,
 599                 messageIds,
 600                 timestamp);
 601
 602         return sendReceiptMessage(sender, timestamp, receiptMessage);
 603     }
 604
 605     @Override
 606     public SendMessageResults sendViewedReceipt(
 607             RecipientIdentifier.Single sender, List<Long> messageIds
 608     ) {
 609         final var timestamp = System.currentTimeMillis();
 610         var receiptMessage = new SignalServiceReceiptMessage(SignalServiceReceiptMessage.Type.VIEWED,
 611                 messageIds,
 612                 timestamp);
 613
 614         return sendReceiptMessage(sender, timestamp, receiptMessage);
 615     }
 616
 617     private SendMessageResults sendReceiptMessage(
 618             final RecipientIdentifier.Single sender,
 619             final long timestamp,
 620             final SignalServiceReceiptMessage receiptMessage
 621     ) {
 622         try {
 623             final var result = context.getSendHelper()
 624                     .sendReceiptMessage(receiptMessage, context.getRecipientHelper().resolveRecipient(sender));
 625             return new SendMessageResults(timestamp, Map.of(sender, List.of(toSendMessageResult(result))));
 626         } catch (UnregisteredRecipientException e) {
 627             return new SendMessageResults(timestamp,
 628                     Map.of(sender, List.of(SendMessageResult.unregisteredFailure(sender.toPartialRecipientAddress()))));
 629         }
 630     }
 631
 632     @Override
 633     public SendMessageResults sendMessage(
 634             Message message, Set<RecipientIdentifier> recipients
 635     ) throws IOException, AttachmentInvalidException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException, UnregisteredRecipientException, InvalidStickerException {
 636         final var selfProfile = context.getProfileHelper().getSelfProfile();
 637         if (selfProfile == null || selfProfile.getDisplayName().isEmpty()) {
 638             logger.warn(
 639                     "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.");
 640         }
 641         final var messageBuilder = SignalServiceDataMessage.newBuilder();
 642         applyMessage(messageBuilder, message);
 643         return sendMessage(messageBuilder, recipients);
 644     }
 645
 646     @Override
 647     public SendMessageResults sendEditMessage(
 648             Message message, Set<RecipientIdentifier> recipients, long editTargetTimestamp
 649     ) throws IOException, AttachmentInvalidException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException, UnregisteredRecipientException, InvalidStickerException {
 650         final var messageBuilder = SignalServiceDataMessage.newBuilder();
 651         applyMessage(messageBuilder, message);
 652         return sendMessage(messageBuilder, recipients, Optional.of(editTargetTimestamp));
 653     }
 654
 655     private void applyMessage(
 656             final SignalServiceDataMessage.Builder messageBuilder, final Message message
 657     ) throws AttachmentInvalidException, IOException, UnregisteredRecipientException, InvalidStickerException {
 658         if (message.messageText().length() > 2000) {
 659             final var messageBytes = message.messageText().getBytes(StandardCharsets.UTF_8);
 660             final var textAttachment = AttachmentUtils.createAttachmentStream(new StreamDetails(new ByteArrayInputStream(
 661                     messageBytes), MimeUtils.LONG_TEXT, messageBytes.length), Optional.empty());
 662             messageBuilder.withBody(message.messageText().substring(0, 2000));
 663             messageBuilder.withAttachment(context.getAttachmentHelper().uploadAttachment(textAttachment));
 664         } else {
 665             messageBuilder.withBody(message.messageText());
 666         }
 667         if (!message.attachments().isEmpty()) {
 668             messageBuilder.withAttachments(context.getAttachmentHelper().uploadAttachments(message.attachments()));
 669         }
 670         if (!message.mentions().isEmpty()) {
 671             messageBuilder.withMentions(resolveMentions(message.mentions()));
 672         }
 673         if (!message.textStyles().isEmpty()) {
 674             messageBuilder.withBodyRanges(message.textStyles().stream().map(TextStyle::toBodyRange).toList());
 675         }
 676         if (message.quote().isPresent()) {
 677             final var quote = message.quote().get();
 678             final var quotedAttachments = new ArrayList<SignalServiceDataMessage.Quote.QuotedAttachment>();
 679             for (final var a : quote.attachments()) {
 680                 final var quotedAttachment = new SignalServiceDataMessage.Quote.QuotedAttachment(a.contentType(),
 681                         a.filename(),
 682                         a.preview() == null ? null : context.getAttachmentHelper().uploadAttachment(a.preview()));
 683                 quotedAttachments.add(quotedAttachment);
 684             }
 685             messageBuilder.withQuote(new SignalServiceDataMessage.Quote(quote.timestamp(),
 686                     context.getRecipientHelper()
 687                             .resolveSignalServiceAddress(context.getRecipientHelper().resolveRecipient(quote.author()))
 688                             .getServiceId(),
 689                     quote.message(),
 690                     quotedAttachments,
 691                     resolveMentions(quote.mentions()),
 692                     SignalServiceDataMessage.Quote.Type.NORMAL,
 693                     quote.textStyles().stream().map(TextStyle::toBodyRange).toList()));
 694         }
 695         if (message.sticker().isPresent()) {
 696             final var sticker = message.sticker().get();
 697             final var packId = StickerPackId.deserialize(sticker.packId());
 698             final var stickerId = sticker.stickerId();
 699
 700             final var stickerPack = context.getAccount().getStickerStore().getStickerPack(packId);
 701             if (stickerPack == null) {
 702                 throw new InvalidStickerException("Sticker pack not found");
 703             }
 704             final var manifest = context.getStickerHelper().getOrRetrieveStickerPack(packId, stickerPack.packKey());
 705             if (manifest.stickers().size() <= stickerId) {
 706                 throw new InvalidStickerException("Sticker id not part of this pack");
 707             }
 708             final var manifestSticker = manifest.stickers().get(stickerId);
 709             final var streamDetails = context.getStickerPackStore().retrieveSticker(packId, stickerId);
 710             if (streamDetails == null) {
 711                 throw new InvalidStickerException("Missing local sticker file");
 712             }
 713             messageBuilder.withSticker(new SignalServiceDataMessage.Sticker(packId.serialize(),
 714                     stickerPack.packKey(),
 715                     stickerId,
 716                     manifestSticker.emoji(),
 717                     AttachmentUtils.createAttachmentStream(streamDetails, Optional.empty())));
 718         }
 719         if (!message.previews().isEmpty()) {
 720             final var previews = new ArrayList<SignalServicePreview>(message.previews().size());
 721             for (final var p : message.previews()) {
 722                 final var image = p.image().isPresent() ? context.getAttachmentHelper()
 723                         .uploadAttachment(p.image().get()) : null;
 724                 previews.add(new SignalServicePreview(p.url(),
 725                         p.title(),
 726                         p.description(),
 727                         0,
 728                         Optional.ofNullable(image)));
 729             }
 730             messageBuilder.withPreviews(previews);
 731         }
 732         if (message.storyReply().isPresent()) {
 733             final var storyReply = message.storyReply().get();
 734             final var authorServiceId = context.getRecipientHelper()
 735                     .resolveSignalServiceAddress(context.getRecipientHelper().resolveRecipient(storyReply.author()))
 736                     .getServiceId();
 737             messageBuilder.withStoryContext(new SignalServiceDataMessage.StoryContext(authorServiceId,
 738                     storyReply.timestamp()));
 739         }
 740     }
 741
 742     private ArrayList<SignalServiceDataMessage.Mention> resolveMentions(final List<Message.Mention> mentionList) throws UnregisteredRecipientException {
 743         final var mentions = new ArrayList<SignalServiceDataMessage.Mention>();
 744         for (final var m : mentionList) {
 745             final var recipientId = context.getRecipientHelper().resolveRecipient(m.recipient());
 746             mentions.add(new SignalServiceDataMessage.Mention(context.getRecipientHelper()
 747                     .resolveSignalServiceAddress(recipientId)
 748                     .getServiceId(), m.start(), m.length()));
 749         }
 750         return mentions;
 751     }
 752
 753     @Override
 754     public SendMessageResults sendRemoteDeleteMessage(
 755             long targetSentTimestamp, Set<RecipientIdentifier> recipients
 756     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException {
 757         var delete = new SignalServiceDataMessage.RemoteDelete(targetSentTimestamp);
 758         final var messageBuilder = SignalServiceDataMessage.newBuilder().withRemoteDelete(delete);
 759         for (final var recipient : recipients) {
 760             if (recipient instanceof RecipientIdentifier.Uuid u) {
 761                 account.getMessageSendLogStore()
 762                         .deleteEntryForRecipientNonGroup(targetSentTimestamp, ACI.from(u.uuid()));
 763             } else if (recipient instanceof RecipientIdentifier.Single r) {
 764                 try {
 765                     final var recipientId = context.getRecipientHelper().resolveRecipient(r);
 766                     final var address = account.getRecipientAddressResolver().resolveRecipientAddress(recipientId);
 767                     if (address.serviceId().isPresent()) {
 768                         account.getMessageSendLogStore()
 769                                 .deleteEntryForRecipientNonGroup(targetSentTimestamp, address.serviceId().get());
 770                     }
 771                 } catch (UnregisteredRecipientException ignored) {
 772                 }
 773             } else if (recipient instanceof RecipientIdentifier.Group r) {
 774                 account.getMessageSendLogStore().deleteEntryForGroup(targetSentTimestamp, r.groupId());
 775             }
 776         }
 777         return sendMessage(messageBuilder, recipients);
 778     }
 779
 780     @Override
 781     public SendMessageResults sendMessageReaction(
 782             String emoji,
 783             boolean remove,
 784             RecipientIdentifier.Single targetAuthor,
 785             long targetSentTimestamp,
 786             Set<RecipientIdentifier> recipients,
 787             final boolean isStory
 788     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException, UnregisteredRecipientException {
 789         var targetAuthorRecipientId = context.getRecipientHelper().resolveRecipient(targetAuthor);
 790         final var authorServiceId = context.getRecipientHelper()
 791                 .resolveSignalServiceAddress(targetAuthorRecipientId)
 792                 .getServiceId();
 793         var reaction = new SignalServiceDataMessage.Reaction(emoji, remove, authorServiceId, targetSentTimestamp);
 794         final var messageBuilder = SignalServiceDataMessage.newBuilder().withReaction(reaction);
 795         if (isStory) {
 796             messageBuilder.withStoryContext(new SignalServiceDataMessage.StoryContext(authorServiceId,
 797                     targetSentTimestamp));
 798         }
 799         return sendMessage(messageBuilder, recipients);
 800     }
 801
 802     @Override
 803     public SendMessageResults sendPaymentNotificationMessage(
 804             byte[] receipt, String note, RecipientIdentifier.Single recipient
 805     ) throws IOException {
 806         final var paymentNotification = new SignalServiceDataMessage.PaymentNotification(receipt, note);
 807         final var payment = new SignalServiceDataMessage.Payment(paymentNotification, null);
 808         final var messageBuilder = SignalServiceDataMessage.newBuilder().withPayment(payment);
 809         try {
 810             return sendMessage(messageBuilder, Set.of(recipient));
 811         } catch (NotAGroupMemberException | GroupNotFoundException | GroupSendingNotAllowedException e) {
 812             throw new AssertionError(e);
 813         }
 814     }
 815
 816     @Override
 817     public SendMessageResults sendEndSessionMessage(Set<RecipientIdentifier.Single> recipients) throws IOException {
 818         var messageBuilder = SignalServiceDataMessage.newBuilder().asEndSessionMessage();
 819
 820         try {
 821             return sendMessage(messageBuilder,
 822                     recipients.stream().map(RecipientIdentifier.class::cast).collect(Collectors.toSet()));
 823         } catch (GroupNotFoundException | NotAGroupMemberException | GroupSendingNotAllowedException e) {
 824             throw new AssertionError(e);
 825         } finally {
 826             for (var recipient : recipients) {
 827                 final RecipientId recipientId;
 828                 try {
 829                     recipientId = context.getRecipientHelper().resolveRecipient(recipient);
 830                 } catch (UnregisteredRecipientException e) {
 831                     continue;
 832                 }
 833                 final var serviceId = context.getAccount()
 834                         .getRecipientAddressResolver()
 835                         .resolveRecipientAddress(recipientId)
 836                         .serviceId();
 837                 if (serviceId.isPresent()) {
 838                     account.getAccountData(ServiceIdType.ACI).getSessionStore().deleteAllSessions(serviceId.get());
 839                 }
 840             }
 841         }
 842     }
 843
 844     @Override
 845     public void deleteRecipient(final RecipientIdentifier.Single recipient) {
 846         final var recipientIdOptional = context.getRecipientHelper().resolveRecipientOptional(recipient);
 847         if (recipientIdOptional.isPresent()) {
 848             account.removeRecipient(recipientIdOptional.get());
 849         }
 850     }
 851
 852     @Override
 853     public void deleteContact(final RecipientIdentifier.Single recipient) {
 854         final var recipientIdOptional = context.getRecipientHelper().resolveRecipientOptional(recipient);
 855         if (recipientIdOptional.isPresent()) {
 856             account.getContactStore().deleteContact(recipientIdOptional.get());
 857         }
 858     }
 859
 860     @Override
 861     public void setContactName(
 862             RecipientIdentifier.Single recipient, String givenName, final String familyName
 863     ) throws NotPrimaryDeviceException, UnregisteredRecipientException {
 864         if (!account.isPrimaryDevice()) {
 865             throw new NotPrimaryDeviceException();
 866         }
 867         context.getContactHelper()
 868                 .setContactName(context.getRecipientHelper().resolveRecipient(recipient), givenName, familyName);
 869     }
 870
 871     @Override
 872     public void setContactsBlocked(
 873             Collection<RecipientIdentifier.Single> recipients, boolean blocked
 874     ) throws NotPrimaryDeviceException, IOException, UnregisteredRecipientException {
 875         if (!account.isPrimaryDevice()) {
 876             throw new NotPrimaryDeviceException();
 877         }
 878         if (recipients.isEmpty()) {
 879             return;
 880         }
 881         final var recipientIds = context.getRecipientHelper().resolveRecipients(recipients);
 882         final var selfRecipientId = account.getSelfRecipientId();
 883         boolean shouldRotateProfileKey = false;
 884         for (final var recipientId : recipientIds) {
 885             if (context.getContactHelper().isContactBlocked(recipientId) == blocked) {
 886                 continue;
 887             }
 888             context.getContactHelper().setContactBlocked(recipientId, blocked);
 889             // if we don't have a common group with the blocked contact we need to rotate the profile key
 890             shouldRotateProfileKey = blocked && (
 891                     shouldRotateProfileKey || account.getGroupStore()
 892                             .getGroups()
 893                             .stream()
 894                             .noneMatch(g -> g.isMember(selfRecipientId) && g.isMember(recipientId))
 895             );
 896         }
 897         if (shouldRotateProfileKey) {
 898             context.getProfileHelper().rotateProfileKey();
 899         }
 900         context.getSyncHelper().sendBlockedList();
 901     }
 902
 903     @Override
 904     public void setGroupsBlocked(
 905             final Collection<GroupId> groupIds, final boolean blocked
 906     ) throws GroupNotFoundException, NotPrimaryDeviceException, IOException {
 907         if (!account.isPrimaryDevice()) {
 908             throw new NotPrimaryDeviceException();
 909         }
 910         if (groupIds.isEmpty()) {
 911             return;
 912         }
 913         boolean shouldRotateProfileKey = false;
 914         for (final var groupId : groupIds) {
 915             if (context.getGroupHelper().isGroupBlocked(groupId) == blocked) {
 916                 continue;
 917             }
 918             context.getGroupHelper().setGroupBlocked(groupId, blocked);
 919             shouldRotateProfileKey = blocked;
 920         }
 921         if (shouldRotateProfileKey) {
 922             context.getProfileHelper().rotateProfileKey();
 923         }
 924         context.getSyncHelper().sendBlockedList();
 925     }
 926
 927     @Override
 928     public void setExpirationTimer(
 929             RecipientIdentifier.Single recipient, int messageExpirationTimer
 930     ) throws IOException, UnregisteredRecipientException {
 931         var recipientId = context.getRecipientHelper().resolveRecipient(recipient);
 932         context.getContactHelper().setExpirationTimer(recipientId, messageExpirationTimer);
 933         final var messageBuilder = SignalServiceDataMessage.newBuilder().asExpirationUpdate();
 934         try {
 935             sendMessage(messageBuilder, Set.of(recipient));
 936         } catch (NotAGroupMemberException | GroupNotFoundException | GroupSendingNotAllowedException e) {
 937             throw new AssertionError(e);
 938         }
 939     }
 940
 941     @Override
 942     public StickerPackUrl uploadStickerPack(File path) throws IOException, StickerPackInvalidException {
 943         var manifest = StickerUtils.getSignalServiceStickerManifestUpload(path);
 944
 945         var messageSender = dependencies.getMessageSender();
 946
 947         var packKey = KeyUtils.createStickerUploadKey();
 948         var packIdString = messageSender.uploadStickerManifest(manifest, packKey);
 949         var packId = StickerPackId.deserialize(Hex.fromStringCondensed(packIdString));
 950
 951         var sticker = new StickerPack(packId, packKey);
 952         account.getStickerStore().addStickerPack(sticker);
 953         context.getSyncHelper().sendStickerOperationsMessage(List.of(sticker), List.of());
 954
 955         return new StickerPackUrl(packId, packKey);
 956     }
 957
 958     @Override
 959     public void installStickerPack(StickerPackUrl url) throws IOException {
 960         final var packId = url.packId();
 961         final var packKey = url.packKey();
 962         try {
 963             context.getStickerHelper().retrieveStickerPack(packId, packKey);
 964         } catch (InvalidMessageException e) {
 965             throw new IOException(e);
 966         }
 967
 968         final var sticker = context.getStickerHelper().addOrUpdateStickerPack(packId, packKey, true);
 969         context.getSyncHelper().sendStickerOperationsMessage(List.of(sticker), List.of());
 970     }
 971
 972     @Override
 973     public List<org.asamk.signal.manager.api.StickerPack> getStickerPacks() {
 974         final var stickerPackStore = context.getStickerPackStore();
 975         return account.getStickerStore().getStickerPacks().stream().map(pack -> {
 976             if (stickerPackStore.existsStickerPack(pack.packId())) {
 977                 try {
 978                     final var manifest = stickerPackStore.retrieveManifest(pack.packId());
 979                     return new org.asamk.signal.manager.api.StickerPack(pack.packId(),
 980                             new StickerPackUrl(pack.packId(), pack.packKey()),
 981                             pack.isInstalled(),
 982                             manifest.title(),
 983                             manifest.author(),
 984                             Optional.ofNullable(manifest.cover() == null ? null : manifest.cover().toApi()),
 985                             manifest.stickers().stream().map(JsonStickerPack.JsonSticker::toApi).toList());
 986                 } catch (Exception e) {
 987                     logger.warn("Failed to read local sticker pack manifest: {}", e.getMessage(), e);
 988                 }
 989             }
 990
 991             return new org.asamk.signal.manager.api.StickerPack(pack.packId(), pack.packKey(), pack.isInstalled());
 992         }).toList();
 993     }
 994
 995     @Override
 996     public void requestAllSyncData() throws IOException {
 997         context.getSyncHelper().requestAllSyncData();
 998         retrieveRemoteStorage();
 999     }
1000
1001     void retrieveRemoteStorage() throws IOException {
1002         context.getStorageHelper().readDataFromStorage();
1003     }
1004
1005     @Override
1006     public void addReceiveHandler(final ReceiveMessageHandler handler, final boolean isWeakListener) {
1007         synchronized (messageHandlers) {
1008             if (isWeakListener) {
1009                 weakHandlers.add(handler);
1010             } else {
1011                 messageHandlers.add(handler);
1012                 startReceiveThreadIfRequired();
1013             }
1014         }
1015     }
1016
1017     private static final AtomicInteger threadNumber = new AtomicInteger(0);
1018
1019     private void startReceiveThreadIfRequired() {
1020         if (receiveThread != null || isReceivingSynchronous) {
1021             return;
1022         }
1023         receiveThread = new Thread(() -> {
1024             logger.debug("Starting receiving messages");
1025             context.getReceiveHelper().receiveMessagesContinuously(this::passReceivedMessageToHandlers);
1026             logger.debug("Finished receiving messages");
1027             synchronized (messageHandlers) {
1028                 receiveThread = null;
1029
1030                 // Check if in the meantime another handler has been registered
1031                 if (!messageHandlers.isEmpty()) {
1032                     logger.debug("Another handler has been registered, starting receive thread again");
1033                     startReceiveThreadIfRequired();
1034                 }
1035             }
1036         });
1037         receiveThread.setName("receive-" + threadNumber.getAndIncrement());
1038
1039         receiveThread.start();
1040     }
1041
1042     private void passReceivedMessageToHandlers(MessageEnvelope envelope, Throwable e) {
1043         synchronized (messageHandlers) {
1044             Stream.concat(messageHandlers.stream(), weakHandlers.stream()).forEach(h -> {
1045                 try {
1046                     h.handleMessage(envelope, e);
1047                 } catch (Throwable ex) {
1048                     logger.warn("Message handler failed, ignoring", ex);
1049                 }
1050             });
1051         }
1052     }
1053
1054     @Override
1055     public void removeReceiveHandler(final ReceiveMessageHandler handler) {
1056         final Thread thread;
1057         synchronized (messageHandlers) {
1058             weakHandlers.remove(handler);
1059             messageHandlers.remove(handler);
1060             if (!messageHandlers.isEmpty() || receiveThread == null || isReceivingSynchronous) {
1061                 return;
1062             }
1063             thread = receiveThread;
1064             receiveThread = null;
1065         }
1066
1067         stopReceiveThread(thread);
1068     }
1069
1070     private void stopReceiveThread(final Thread thread) {
1071         if (context.getReceiveHelper().requestStopReceiveMessages()) {
1072             logger.debug("Receive stop requested, interrupting read from server.");
1073             thread.interrupt();
1074         }
1075         try {
1076             thread.join();
1077         } catch (InterruptedException ignored) {
1078         }
1079     }
1080
1081     @Override
1082     public boolean isReceiving() {
1083         if (isReceivingSynchronous) {
1084             return true;
1085         }
1086         synchronized (messageHandlers) {
1087             return !messageHandlers.isEmpty();
1088         }
1089     }
1090
1091     @Override
1092     public void receiveMessages(
1093             Optional<Duration> timeout, Optional<Integer> maxMessages, ReceiveMessageHandler handler
1094     ) throws IOException, AlreadyReceivingException {
1095         receiveMessages(timeout.orElse(Duration.ofMinutes(1)), timeout.isPresent(), maxMessages.orElse(null), handler);
1096     }
1097
1098     private void receiveMessages(
1099             Duration timeout, boolean returnOnTimeout, Integer maxMessages, ReceiveMessageHandler handler
1100     ) throws IOException, AlreadyReceivingException {
1101         synchronized (messageHandlers) {
1102             if (isReceiving()) {
1103                 throw new AlreadyReceivingException("Already receiving message.");
1104             }
1105             isReceivingSynchronous = true;
1106             receiveThread = Thread.currentThread();
1107         }
1108         try {
1109             context.getReceiveHelper().receiveMessages(timeout, returnOnTimeout, maxMessages, (envelope, e) -> {
1110                 passReceivedMessageToHandlers(envelope, e);
1111                 handler.handleMessage(envelope, e);
1112             });
1113         } finally {
1114             synchronized (messageHandlers) {
1115                 receiveThread = null;
1116                 isReceivingSynchronous = false;
1117                 if (!messageHandlers.isEmpty()) {
1118                     startReceiveThreadIfRequired();
1119                 }
1120             }
1121         }
1122     }
1123
1124     @Override
1125     public void setReceiveConfig(final ReceiveConfig receiveConfig) {
1126         context.getReceiveHelper().setReceiveConfig(receiveConfig);
1127     }
1128
1129     @Override
1130     public boolean isContactBlocked(final RecipientIdentifier.Single recipient) {
1131         final RecipientId recipientId;
1132         try {
1133             recipientId = context.getRecipientHelper().resolveRecipient(recipient);
1134         } catch (UnregisteredRecipientException e) {
1135             return false;
1136         }
1137         return context.getContactHelper().isContactBlocked(recipientId);
1138     }
1139
1140     @Override
1141     public void sendContacts() throws IOException {
1142         context.getSyncHelper().sendContacts();
1143     }
1144
1145     @Override
1146     public List<Recipient> getRecipients(
1147             boolean onlyContacts,
1148             Optional<Boolean> blocked,
1149             Collection<RecipientIdentifier.Single> recipients,
1150             Optional<String> name
1151     ) {
1152         final var recipientIds = recipients.stream().map(a -> {
1153             try {
1154                 return context.getRecipientHelper().resolveRecipient(a);
1155             } catch (UnregisteredRecipientException e) {
1156                 return null;
1157             }
1158         }).filter(Objects::nonNull).collect(Collectors.toSet());
1159         if (!recipients.isEmpty() && recipientIds.isEmpty()) {
1160             return List.of();
1161         }
1162         // refresh profiles of explicitly given recipients
1163         context.getProfileHelper().refreshRecipientProfiles(recipientIds);
1164         return account.getRecipientStore()
1165                 .getRecipients(onlyContacts, blocked, recipientIds, name)
1166                 .stream()
1167                 .map(s -> new Recipient(s.getRecipientId(),
1168                         s.getAddress().toApiRecipientAddress(),
1169                         s.getContact(),
1170                         s.getProfileKey(),
1171                         s.getExpiringProfileKeyCredential(),
1172                         s.getProfile()))
1173                 .toList();
1174     }
1175
1176     @Override
1177     public String getContactOrProfileName(RecipientIdentifier.Single recipient) {
1178         final RecipientId recipientId;
1179         try {
1180             recipientId = context.getRecipientHelper().resolveRecipient(recipient);
1181         } catch (UnregisteredRecipientException e) {
1182             return null;
1183         }
1184
1185         final var contact = account.getContactStore().getContact(recipientId);
1186         if (contact != null && !Util.isEmpty(contact.getName())) {
1187             return contact.getName();
1188         }
1189
1190         final var profile = context.getProfileHelper().getRecipientProfile(recipientId);
1191         if (profile != null) {
1192             return profile.getDisplayName();
1193         }
1194
1195         return null;
1196     }
1197
1198     @Override
1199     public Group getGroup(GroupId groupId) {
1200         return toGroup(context.getGroupHelper().getGroup(groupId));
1201     }
1202
1203     @Override
1204     public List<Identity> getIdentities() {
1205         return account.getIdentityKeyStore()
1206                 .getIdentities()
1207                 .stream()
1208                 .map(this::toIdentity)
1209                 .filter(Objects::nonNull)
1210                 .toList();
1211     }
1212
1213     private Identity toIdentity(final IdentityInfo identityInfo) {
1214         if (identityInfo == null) {
1215             return null;
1216         }
1217
1218         final var address = account.getRecipientAddressResolver()
1219                 .resolveRecipientAddress(account.getRecipientResolver().resolveRecipient(identityInfo.getServiceId()));
1220         if (address.serviceId().isPresent() && !Objects.equals(address.serviceId().get(),
1221                 identityInfo.getServiceId())) {
1222             return null;
1223         }
1224         final var scannableFingerprint = context.getIdentityHelper()
1225                 .computeSafetyNumberForScanning(identityInfo.getServiceId(), identityInfo.getIdentityKey());
1226         return new Identity(address.toApiRecipientAddress(),
1227                 identityInfo.getIdentityKey(),
1228                 context.getIdentityHelper()
1229                         .computeSafetyNumber(identityInfo.getServiceId(), identityInfo.getIdentityKey()),
1230                 scannableFingerprint == null ? null : scannableFingerprint.getSerialized(),
1231                 identityInfo.getTrustLevel(),
1232                 identityInfo.getDateAddedTimestamp());
1233     }
1234
1235     @Override
1236     public List<Identity> getIdentities(RecipientIdentifier.Single recipient) {
1237         ServiceId serviceId;
1238         try {
1239             final var address = account.getRecipientAddressResolver()
1240                     .resolveRecipientAddress(context.getRecipientHelper().resolveRecipient(recipient));
1241             if (address.serviceId().isEmpty()) {
1242                 return List.of();
1243             }
1244             serviceId = address.serviceId().get();
1245         } catch (UnregisteredRecipientException e) {
1246             return List.of();
1247         }
1248         final var identity = account.getIdentityKeyStore().getIdentityInfo(serviceId);
1249         return identity == null ? List.of() : List.of(toIdentity(identity));
1250     }
1251
1252     @Override
1253     public boolean trustIdentityVerified(
1254             RecipientIdentifier.Single recipient, IdentityVerificationCode verificationCode
1255     ) throws UnregisteredRecipientException {
1256         if (verificationCode instanceof IdentityVerificationCode.Fingerprint fingerprint) {
1257             return trustIdentity(recipient,
1258                     r -> context.getIdentityHelper().trustIdentityVerified(r, fingerprint.fingerprint()));
1259         } else if (verificationCode instanceof IdentityVerificationCode.SafetyNumber safetyNumber) {
1260             return trustIdentity(recipient,
1261                     r -> context.getIdentityHelper().trustIdentityVerifiedSafetyNumber(r, safetyNumber.safetyNumber()));
1262         } else if (verificationCode instanceof IdentityVerificationCode.ScannableSafetyNumber safetyNumber) {
1263             return trustIdentity(recipient,
1264                     r -> context.getIdentityHelper().trustIdentityVerifiedSafetyNumber(r, safetyNumber.safetyNumber()));
1265         } else {
1266             throw new AssertionError("Invalid verification code type");
1267         }
1268     }
1269
1270     @Override
1271     public boolean trustIdentityAllKeys(RecipientIdentifier.Single recipient) throws UnregisteredRecipientException {
1272         return trustIdentity(recipient, r -> context.getIdentityHelper().trustIdentityAllKeys(r));
1273     }
1274
1275     private boolean trustIdentity(
1276             RecipientIdentifier.Single recipient, Function<RecipientId, Boolean> trustMethod
1277     ) throws UnregisteredRecipientException {
1278         final var recipientId = context.getRecipientHelper().resolveRecipient(recipient);
1279         final var updated = trustMethod.apply(recipientId);
1280         if (updated && this.isReceiving()) {
1281             context.getReceiveHelper().setNeedsToRetryFailedMessages(true);
1282         }
1283         return updated;
1284     }
1285
1286     @Override
1287     public void addAddressChangedListener(final Runnable listener) {
1288         synchronized (addressChangedListeners) {
1289             addressChangedListeners.add(listener);
1290         }
1291     }
1292
1293     @Override
1294     public void addClosedListener(final Runnable listener) {
1295         synchronized (closedListeners) {
1296             closedListeners.add(listener);
1297         }
1298     }
1299
1300     @Override
1301     public InputStream retrieveAttachment(final String id) throws IOException {
1302         return context.getAttachmentHelper().retrieveAttachment(id).getStream();
1303     }
1304
1305     @Override
1306     public void close() {
1307         Thread thread;
1308         synchronized (messageHandlers) {
1309             weakHandlers.clear();
1310             messageHandlers.clear();
1311             thread = receiveThread;
1312             receiveThread = null;
1313         }
1314         if (thread != null) {
1315             stopReceiveThread(thread);
1316         }
1317         executor.shutdown();
1318
1319         dependencies.getSignalWebSocket().disconnect();
1320         dependencies.getPushServiceSocket().close();
1321         disposable.dispose();
1322
1323         if (account != null) {
1324             account.close();
1325         }
1326
1327         synchronized (closedListeners) {
1328             closedListeners.forEach(Runnable::run);
1329             closedListeners.clear();
1330         }
1331
1332         account = null;
1333     }
1334 }