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