nmode's Git Repositories - signal-cli/blob - lib/src/main/java/org/asamk/signal/manager/ManagerImpl.java

   1 /*
   2   Copyright (C) 2015-2021 AsamK and contributors
   3
   4   This program is free software: you can redistribute it and/or modify
   5   it under the terms of the GNU General Public License as published by
   6   the Free Software Foundation, either version 3 of the License, or
   7   (at your option) any later version.
   8
   9   This program is distributed in the hope that it will be useful,
  10   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12   GNU General Public License for more details.
  13
  14   You should have received a copy of the GNU General Public License
  15   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17 package org.asamk.signal.manager;
  18
  19 import org.asamk.signal.manager.actions.HandleAction;
  20 import org.asamk.signal.manager.api.Device;
  21 import org.asamk.signal.manager.api.Group;
  22 import org.asamk.signal.manager.api.Identity;
  23 import org.asamk.signal.manager.api.Message;
  24 import org.asamk.signal.manager.api.RecipientIdentifier;
  25 import org.asamk.signal.manager.api.SendGroupMessageResults;
  26 import org.asamk.signal.manager.api.SendMessageResults;
  27 import org.asamk.signal.manager.api.TypingAction;
  28 import org.asamk.signal.manager.api.UpdateGroup;
  29 import org.asamk.signal.manager.config.ServiceConfig;
  30 import org.asamk.signal.manager.config.ServiceEnvironmentConfig;
  31 import org.asamk.signal.manager.groups.GroupId;
  32 import org.asamk.signal.manager.groups.GroupInviteLinkUrl;
  33 import org.asamk.signal.manager.groups.GroupNotFoundException;
  34 import org.asamk.signal.manager.groups.GroupSendingNotAllowedException;
  35 import org.asamk.signal.manager.groups.LastGroupAdminException;
  36 import org.asamk.signal.manager.groups.NotAGroupMemberException;
  37 import org.asamk.signal.manager.helper.AttachmentHelper;
  38 import org.asamk.signal.manager.helper.ContactHelper;
  39 import org.asamk.signal.manager.helper.GroupHelper;
  40 import org.asamk.signal.manager.helper.GroupV2Helper;
  41 import org.asamk.signal.manager.helper.IdentityHelper;
  42 import org.asamk.signal.manager.helper.IncomingMessageHandler;
  43 import org.asamk.signal.manager.helper.PinHelper;
  44 import org.asamk.signal.manager.helper.PreKeyHelper;
  45 import org.asamk.signal.manager.helper.ProfileHelper;
  46 import org.asamk.signal.manager.helper.SendHelper;
  47 import org.asamk.signal.manager.helper.StorageHelper;
  48 import org.asamk.signal.manager.helper.SyncHelper;
  49 import org.asamk.signal.manager.helper.UnidentifiedAccessHelper;
  50 import org.asamk.signal.manager.jobs.Context;
  51 import org.asamk.signal.manager.storage.SignalAccount;
  52 import org.asamk.signal.manager.storage.groups.GroupInfo;
  53 import org.asamk.signal.manager.storage.identities.IdentityInfo;
  54 import org.asamk.signal.manager.storage.messageCache.CachedMessage;
  55 import org.asamk.signal.manager.storage.recipients.Contact;
  56 import org.asamk.signal.manager.storage.recipients.Profile;
  57 import org.asamk.signal.manager.storage.recipients.RecipientAddress;
  58 import org.asamk.signal.manager.storage.recipients.RecipientId;
  59 import org.asamk.signal.manager.storage.stickers.Sticker;
  60 import org.asamk.signal.manager.storage.stickers.StickerPackId;
  61 import org.asamk.signal.manager.util.KeyUtils;
  62 import org.asamk.signal.manager.util.StickerUtils;
  63 import org.slf4j.Logger;
  64 import org.slf4j.LoggerFactory;
  65 import org.whispersystems.libsignal.InvalidKeyException;
  66 import org.whispersystems.libsignal.ecc.ECPublicKey;
  67 import org.whispersystems.libsignal.util.Pair;
  68 import org.whispersystems.libsignal.util.guava.Optional;
  69 import org.whispersystems.signalservice.api.SignalSessionLock;
  70 import org.whispersystems.signalservice.api.groupsv2.GroupLinkNotActiveException;
  71 import org.whispersystems.signalservice.api.messages.SendMessageResult;
  72 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentRemoteId;
  73 import org.whispersystems.signalservice.api.messages.SignalServiceDataMessage;
  74 import org.whispersystems.signalservice.api.messages.SignalServiceEnvelope;
  75 import org.whispersystems.signalservice.api.messages.SignalServiceReceiptMessage;
  76 import org.whispersystems.signalservice.api.messages.SignalServiceTypingMessage;
  77 import org.whispersystems.signalservice.api.push.SignalServiceAddress;
  78 import org.whispersystems.signalservice.api.push.exceptions.UnregisteredUserException;
  79 import org.whispersystems.signalservice.api.util.DeviceNameUtil;
  80 import org.whispersystems.signalservice.api.util.InvalidNumberException;
  81 import org.whispersystems.signalservice.api.util.PhoneNumberFormatter;
  82 import org.whispersystems.signalservice.api.websocket.WebSocketUnavailableException;
  83 import org.whispersystems.signalservice.internal.contacts.crypto.Quote;
  84 import org.whispersystems.signalservice.internal.contacts.crypto.UnauthenticatedQuoteException;
  85 import org.whispersystems.signalservice.internal.contacts.crypto.UnauthenticatedResponseException;
  86 import org.whispersystems.signalservice.internal.util.DynamicCredentialsProvider;
  87 import org.whispersystems.signalservice.internal.util.Hex;
  88 import org.whispersystems.signalservice.internal.util.Util;
  89
  90 import java.io.File;
  91 import java.io.IOException;
  92 import java.net.URI;
  93 import java.net.URISyntaxException;
  94 import java.net.URLEncoder;
  95 import java.nio.charset.StandardCharsets;
  96 import java.security.SignatureException;
  97 import java.util.Collection;
  98 import java.util.HashMap;
  99 import java.util.HashSet;
 100 import java.util.List;
 101 import java.util.Map;
 102 import java.util.Set;
 103 import java.util.UUID;
 104 import java.util.concurrent.ExecutorService;
 105 import java.util.concurrent.Executors;
 106 import java.util.concurrent.TimeUnit;
 107 import java.util.concurrent.TimeoutException;
 108 import java.util.concurrent.locks.ReentrantLock;
 109 import java.util.stream.Collectors;
 110
 111 import static org.asamk.signal.manager.config.ServiceConfig.capabilities;
 112
 113 public class ManagerImpl implements Manager {
 114
 115     private final static Logger logger = LoggerFactory.getLogger(ManagerImpl.class);
 116
 117     private final ServiceEnvironmentConfig serviceEnvironmentConfig;
 118     private final SignalDependencies dependencies;
 119
 120     private SignalAccount account;
 121
 122     private final ExecutorService executor = Executors.newCachedThreadPool();
 123
 124     private final ProfileHelper profileHelper;
 125     private final PinHelper pinHelper;
 126     private final StorageHelper storageHelper;
 127     private final SendHelper sendHelper;
 128     private final SyncHelper syncHelper;
 129     private final AttachmentHelper attachmentHelper;
 130     private final GroupHelper groupHelper;
 131     private final ContactHelper contactHelper;
 132     private final IncomingMessageHandler incomingMessageHandler;
 133     private final PreKeyHelper preKeyHelper;
 134     private final IdentityHelper identityHelper;
 135
 136     private final Context context;
 137     private boolean hasCaughtUpWithOldMessages = false;
 138     private boolean ignoreAttachments = false;
 139
 140     private Thread receiveThread;
 141     private final Set<ReceiveMessageHandler> messageHandlers = new HashSet<>();
 142     private boolean isReceivingSynchronous;
 143
 144     ManagerImpl(
 145             SignalAccount account,
 146             PathConfig pathConfig,
 147             ServiceEnvironmentConfig serviceEnvironmentConfig,
 148             String userAgent
 149     ) {
 150         this.account = account;
 151         this.serviceEnvironmentConfig = serviceEnvironmentConfig;
 152
 153         final var credentialsProvider = new DynamicCredentialsProvider(account.getUuid(),
 154                 account.getUsername(),
 155                 account.getPassword(),
 156                 account.getDeviceId());
 157         final var sessionLock = new SignalSessionLock() {
 158             private final ReentrantLock LEGACY_LOCK = new ReentrantLock();
 159
 160             @Override
 161             public Lock acquire() {
 162                 LEGACY_LOCK.lock();
 163                 return LEGACY_LOCK::unlock;
 164             }
 165         };
 166         this.dependencies = new SignalDependencies(serviceEnvironmentConfig,
 167                 userAgent,
 168                 credentialsProvider,
 169                 account.getSignalProtocolStore(),
 170                 executor,
 171                 sessionLock);
 172         final var avatarStore = new AvatarStore(pathConfig.getAvatarsPath());
 173         final var attachmentStore = new AttachmentStore(pathConfig.getAttachmentsPath());
 174         final var stickerPackStore = new StickerPackStore(pathConfig.getStickerPacksPath());
 175
 176         this.attachmentHelper = new AttachmentHelper(dependencies, attachmentStore);
 177         this.pinHelper = new PinHelper(dependencies.getKeyBackupService());
 178         final var unidentifiedAccessHelper = new UnidentifiedAccessHelper(account,
 179                 dependencies,
 180                 account::getProfileKey,
 181                 this::getRecipientProfile);
 182         this.profileHelper = new ProfileHelper(account,
 183                 dependencies,
 184                 avatarStore,
 185                 unidentifiedAccessHelper::getAccessFor,
 186                 this::resolveSignalServiceAddress);
 187         final GroupV2Helper groupV2Helper = new GroupV2Helper(profileHelper::getRecipientProfileKeyCredential,
 188                 this::getRecipientProfile,
 189                 account::getSelfRecipientId,
 190                 dependencies.getGroupsV2Operations(),
 191                 dependencies.getGroupsV2Api(),
 192                 this::resolveSignalServiceAddress);
 193         this.sendHelper = new SendHelper(account,
 194                 dependencies,
 195                 unidentifiedAccessHelper,
 196                 this::resolveSignalServiceAddress,
 197                 account.getRecipientStore(),
 198                 this::handleIdentityFailure,
 199                 this::getGroupInfo,
 200                 this::refreshRegisteredUser);
 201         this.groupHelper = new GroupHelper(account,
 202                 dependencies,
 203                 attachmentHelper,
 204                 sendHelper,
 205                 groupV2Helper,
 206                 avatarStore,
 207                 this::resolveSignalServiceAddress,
 208                 account.getRecipientStore());
 209         this.storageHelper = new StorageHelper(account, dependencies, groupHelper, profileHelper);
 210         this.contactHelper = new ContactHelper(account);
 211         this.syncHelper = new SyncHelper(account,
 212                 attachmentHelper,
 213                 sendHelper,
 214                 groupHelper,
 215                 avatarStore,
 216                 this::resolveSignalServiceAddress);
 217         preKeyHelper = new PreKeyHelper(account, dependencies);
 218
 219         this.context = new Context(account,
 220                 dependencies,
 221                 stickerPackStore,
 222                 sendHelper,
 223                 groupHelper,
 224                 syncHelper,
 225                 profileHelper,
 226                 storageHelper,
 227                 preKeyHelper);
 228         var jobExecutor = new JobExecutor(context);
 229
 230         this.incomingMessageHandler = new IncomingMessageHandler(account,
 231                 dependencies,
 232                 account.getRecipientStore(),
 233                 this::resolveSignalServiceAddress,
 234                 groupHelper,
 235                 contactHelper,
 236                 attachmentHelper,
 237                 syncHelper,
 238                 this::getRecipientProfile,
 239                 jobExecutor);
 240         this.identityHelper = new IdentityHelper(account,
 241                 dependencies,
 242                 this::resolveSignalServiceAddress,
 243                 syncHelper,
 244                 profileHelper);
 245     }
 246
 247     @Override
 248     public String getSelfNumber() {
 249         return account.getUsername();
 250     }
 251
 252     @Override
 253     public void checkAccountState() throws IOException {
 254         if (account.getLastReceiveTimestamp() == 0) {
 255             logger.info("The Signal protocol expects that incoming messages are regularly received.");
 256         } else {
 257             var diffInMilliseconds = System.currentTimeMillis() - account.getLastReceiveTimestamp();
 258             long days = TimeUnit.DAYS.convert(diffInMilliseconds, TimeUnit.MILLISECONDS);
 259             if (days > 7) {
 260                 logger.warn(
 261                         "Messages have been last received {} days ago. The Signal protocol expects that incoming messages are regularly received.",
 262                         days);
 263             }
 264         }
 265         preKeyHelper.refreshPreKeysIfNecessary();
 266         if (account.getUuid() == null) {
 267             account.setUuid(dependencies.getAccountManager().getOwnUuid());
 268         }
 269         updateAccountAttributes(null);
 270     }
 271
 272     /**
 273      * This is used for checking a set of phone numbers for registration on Signal
 274      *
 275      * @param numbers The set of phone number in question
 276      * @return A map of numbers to canonicalized number and uuid. If a number is not registered the uuid is null.
 277      * @throws IOException if its unable to get the contacts to check if they're registered
 278      */
 279     @Override
 280     public Map<String, Pair<String, UUID>> areUsersRegistered(Set<String> numbers) throws IOException {
 281         Map<String, String> canonicalizedNumbers = numbers.stream().collect(Collectors.toMap(n -> n, n -> {
 282             try {
 283                 return PhoneNumberFormatter.formatNumber(n, account.getUsername());
 284             } catch (InvalidNumberException e) {
 285                 return "";
 286             }
 287         }));
 288
 289         // Note "registeredUsers" has no optionals. It only gives us info on users who are registered
 290         var registeredUsers = getRegisteredUsers(canonicalizedNumbers.values()
 291                 .stream()
 292                 .filter(s -> !s.isEmpty())
 293                 .collect(Collectors.toSet()));
 294
 295         return numbers.stream().collect(Collectors.toMap(n -> n, n -> {
 296             final var number = canonicalizedNumbers.get(n);
 297             final var uuid = registeredUsers.get(number);
 298             return new Pair<>(number.isEmpty() ? null : number, uuid);
 299         }));
 300     }
 301
 302     @Override
 303     public void updateAccountAttributes(String deviceName) throws IOException {
 304         final String encryptedDeviceName;
 305         if (deviceName == null) {
 306             encryptedDeviceName = account.getEncryptedDeviceName();
 307         } else {
 308             final var privateKey = account.getIdentityKeyPair().getPrivateKey();
 309             encryptedDeviceName = DeviceNameUtil.encryptDeviceName(deviceName, privateKey);
 310             account.setEncryptedDeviceName(encryptedDeviceName);
 311         }
 312         dependencies.getAccountManager()
 313                 .setAccountAttributes(encryptedDeviceName,
 314                         null,
 315                         account.getLocalRegistrationId(),
 316                         true,
 317                         null,
 318                         account.getPinMasterKey() == null ? null : account.getPinMasterKey().deriveRegistrationLock(),
 319                         account.getSelfUnidentifiedAccessKey(),
 320                         account.isUnrestrictedUnidentifiedAccess(),
 321                         capabilities,
 322                         account.isDiscoverableByPhoneNumber());
 323     }
 324
 325     @Override
 326     public void updateConfiguration(
 327             final Boolean readReceipts,
 328             final Boolean unidentifiedDeliveryIndicators,
 329             final Boolean typingIndicators,
 330             final Boolean linkPreviews
 331     ) throws IOException, NotMasterDeviceException {
 332         if (!account.isMasterDevice()) {
 333             throw new NotMasterDeviceException();
 334         }
 335
 336         final var configurationStore = account.getConfigurationStore();
 337         if (readReceipts != null) {
 338             configurationStore.setReadReceipts(readReceipts);
 339         }
 340         if (unidentifiedDeliveryIndicators != null) {
 341             configurationStore.setUnidentifiedDeliveryIndicators(unidentifiedDeliveryIndicators);
 342         }
 343         if (typingIndicators != null) {
 344             configurationStore.setTypingIndicators(typingIndicators);
 345         }
 346         if (linkPreviews != null) {
 347             configurationStore.setLinkPreviews(linkPreviews);
 348         }
 349         syncHelper.sendConfigurationMessage();
 350     }
 351
 352     /**
 353      * @param givenName  if null, the previous givenName will be kept
 354      * @param familyName if null, the previous familyName will be kept
 355      * @param about      if null, the previous about text will be kept
 356      * @param aboutEmoji if null, the previous about emoji will be kept
 357      * @param avatar     if avatar is null the image from the local avatar store is used (if present),
 358      */
 359     @Override
 360     public void setProfile(
 361             String givenName, final String familyName, String about, String aboutEmoji, Optional<File> avatar
 362     ) throws IOException {
 363         profileHelper.setProfile(givenName, familyName, about, aboutEmoji, avatar);
 364         syncHelper.sendSyncFetchProfileMessage();
 365     }
 366
 367     @Override
 368     public void unregister() throws IOException {
 369         // When setting an empty GCM id, the Signal-Server also sets the fetchesMessages property to false.
 370         // If this is the master device, other users can't send messages to this number anymore.
 371         // If this is a linked device, other users can still send messages, but this device doesn't receive them anymore.
 372         dependencies.getAccountManager().setGcmId(Optional.absent());
 373
 374         account.setRegistered(false);
 375     }
 376
 377     @Override
 378     public void deleteAccount() throws IOException {
 379         try {
 380             pinHelper.removeRegistrationLockPin();
 381         } catch (UnauthenticatedResponseException e) {
 382             logger.warn("Failed to remove registration lock pin");
 383         }
 384         account.setRegistrationLockPin(null, null);
 385
 386         dependencies.getAccountManager().deleteAccount();
 387
 388         account.setRegistered(false);
 389     }
 390
 391     @Override
 392     public void submitRateLimitRecaptchaChallenge(String challenge, String captcha) throws IOException {
 393         dependencies.getAccountManager().submitRateLimitRecaptchaChallenge(challenge, captcha);
 394     }
 395
 396     @Override
 397     public List<Device> getLinkedDevices() throws IOException {
 398         var devices = dependencies.getAccountManager().getDevices();
 399         account.setMultiDevice(devices.size() > 1);
 400         var identityKey = account.getIdentityKeyPair().getPrivateKey();
 401         return devices.stream().map(d -> {
 402             String deviceName = d.getName();
 403             if (deviceName != null) {
 404                 try {
 405                     deviceName = DeviceNameUtil.decryptDeviceName(deviceName, identityKey);
 406                 } catch (IOException e) {
 407                     logger.debug("Failed to decrypt device name, maybe plain text?", e);
 408                 }
 409             }
 410             return new Device(d.getId(),
 411                     deviceName,
 412                     d.getCreated(),
 413                     d.getLastSeen(),
 414                     d.getId() == account.getDeviceId());
 415         }).collect(Collectors.toList());
 416     }
 417
 418     @Override
 419     public void removeLinkedDevices(long deviceId) throws IOException {
 420         dependencies.getAccountManager().removeDevice(deviceId);
 421         var devices = dependencies.getAccountManager().getDevices();
 422         account.setMultiDevice(devices.size() > 1);
 423     }
 424
 425     @Override
 426     public void addDeviceLink(URI linkUri) throws IOException, InvalidKeyException {
 427         var info = DeviceLinkInfo.parseDeviceLinkUri(linkUri);
 428
 429         addDevice(info.deviceIdentifier, info.deviceKey);
 430     }
 431
 432     private void addDevice(String deviceIdentifier, ECPublicKey deviceKey) throws IOException, InvalidKeyException {
 433         var identityKeyPair = account.getIdentityKeyPair();
 434         var verificationCode = dependencies.getAccountManager().getNewDeviceVerificationCode();
 435
 436         dependencies.getAccountManager()
 437                 .addDevice(deviceIdentifier,
 438                         deviceKey,
 439                         identityKeyPair,
 440                         Optional.of(account.getProfileKey().serialize()),
 441                         verificationCode);
 442         account.setMultiDevice(true);
 443     }
 444
 445     @Override
 446     public void setRegistrationLockPin(Optional<String> pin) throws IOException, UnauthenticatedResponseException {
 447         if (!account.isMasterDevice()) {
 448             throw new RuntimeException("Only master device can set a PIN");
 449         }
 450         if (pin.isPresent()) {
 451             final var masterKey = account.getPinMasterKey() != null
 452                     ? account.getPinMasterKey()
 453                     : KeyUtils.createMasterKey();
 454
 455             pinHelper.setRegistrationLockPin(pin.get(), masterKey);
 456
 457             account.setRegistrationLockPin(pin.get(), masterKey);
 458         } else {
 459             // Remove KBS Pin
 460             pinHelper.removeRegistrationLockPin();
 461
 462             account.setRegistrationLockPin(null, null);
 463         }
 464     }
 465
 466     void refreshPreKeys() throws IOException {
 467         preKeyHelper.refreshPreKeys();
 468     }
 469
 470     @Override
 471     public Profile getRecipientProfile(RecipientIdentifier.Single recipient) throws UnregisteredUserException {
 472         return profileHelper.getRecipientProfile(resolveRecipient(recipient));
 473     }
 474
 475     private Profile getRecipientProfile(RecipientId recipientId) {
 476         return profileHelper.getRecipientProfile(recipientId);
 477     }
 478
 479     @Override
 480     public List<Group> getGroups() {
 481         return account.getGroupStore().getGroups().stream().map(this::toGroup).collect(Collectors.toList());
 482     }
 483
 484     private Group toGroup(final GroupInfo groupInfo) {
 485         if (groupInfo == null) {
 486             return null;
 487         }
 488
 489         return new Group(groupInfo.getGroupId(),
 490                 groupInfo.getTitle(),
 491                 groupInfo.getDescription(),
 492                 groupInfo.getGroupInviteLink(),
 493                 groupInfo.getMembers()
 494                         .stream()
 495                         .map(account.getRecipientStore()::resolveRecipientAddress)
 496                         .collect(Collectors.toSet()),
 497                 groupInfo.getPendingMembers()
 498                         .stream()
 499                         .map(account.getRecipientStore()::resolveRecipientAddress)
 500                         .collect(Collectors.toSet()),
 501                 groupInfo.getRequestingMembers()
 502                         .stream()
 503                         .map(account.getRecipientStore()::resolveRecipientAddress)
 504                         .collect(Collectors.toSet()),
 505                 groupInfo.getAdminMembers()
 506                         .stream()
 507                         .map(account.getRecipientStore()::resolveRecipientAddress)
 508                         .collect(Collectors.toSet()),
 509                 groupInfo.isBlocked(),
 510                 groupInfo.getMessageExpirationTimer(),
 511                 groupInfo.getPermissionAddMember(),
 512                 groupInfo.getPermissionEditDetails(),
 513                 groupInfo.getPermissionSendMessage(),
 514                 groupInfo.isMember(account.getSelfRecipientId()),
 515                 groupInfo.isAdmin(account.getSelfRecipientId()));
 516     }
 517
 518     @Override
 519     public SendGroupMessageResults quitGroup(
 520             GroupId groupId, Set<RecipientIdentifier.Single> groupAdmins
 521     ) throws GroupNotFoundException, IOException, NotAGroupMemberException, LastGroupAdminException {
 522         final var newAdmins = resolveRecipients(groupAdmins);
 523         return groupHelper.quitGroup(groupId, newAdmins);
 524     }
 525
 526     @Override
 527     public void deleteGroup(GroupId groupId) throws IOException {
 528         groupHelper.deleteGroup(groupId);
 529     }
 530
 531     @Override
 532     public Pair<GroupId, SendGroupMessageResults> createGroup(
 533             String name, Set<RecipientIdentifier.Single> members, File avatarFile
 534     ) throws IOException, AttachmentInvalidException {
 535         return groupHelper.createGroup(name, members == null ? null : resolveRecipients(members), avatarFile);
 536     }
 537
 538     @Override
 539     public SendGroupMessageResults updateGroup(
 540             final GroupId groupId, final UpdateGroup updateGroup
 541     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException, GroupSendingNotAllowedException {
 542         return groupHelper.updateGroup(groupId,
 543                 updateGroup.getName(),
 544                 updateGroup.getDescription(),
 545                 updateGroup.getMembers() == null ? null : resolveRecipients(updateGroup.getMembers()),
 546                 updateGroup.getRemoveMembers() == null ? null : resolveRecipients(updateGroup.getRemoveMembers()),
 547                 updateGroup.getAdmins() == null ? null : resolveRecipients(updateGroup.getAdmins()),
 548                 updateGroup.getRemoveAdmins() == null ? null : resolveRecipients(updateGroup.getRemoveAdmins()),
 549                 updateGroup.isResetGroupLink(),
 550                 updateGroup.getGroupLinkState(),
 551                 updateGroup.getAddMemberPermission(),
 552                 updateGroup.getEditDetailsPermission(),
 553                 updateGroup.getAvatarFile(),
 554                 updateGroup.getExpirationTimer(),
 555                 updateGroup.getIsAnnouncementGroup());
 556     }
 557
 558     @Override
 559     public Pair<GroupId, SendGroupMessageResults> joinGroup(
 560             GroupInviteLinkUrl inviteLinkUrl
 561     ) throws IOException, GroupLinkNotActiveException {
 562         return groupHelper.joinGroup(inviteLinkUrl);
 563     }
 564
 565     private SendMessageResults sendMessage(
 566             SignalServiceDataMessage.Builder messageBuilder, Set<RecipientIdentifier> recipients
 567     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException {
 568         var results = new HashMap<RecipientIdentifier, List<SendMessageResult>>();
 569         long timestamp = System.currentTimeMillis();
 570         messageBuilder.withTimestamp(timestamp);
 571         for (final var recipient : recipients) {
 572             if (recipient instanceof RecipientIdentifier.Single) {
 573                 final var recipientId = resolveRecipient((RecipientIdentifier.Single) recipient);
 574                 final var result = sendHelper.sendMessage(messageBuilder, recipientId);
 575                 results.put(recipient, List.of(result));
 576             } else if (recipient instanceof RecipientIdentifier.NoteToSelf) {
 577                 final var result = sendHelper.sendSelfMessage(messageBuilder);
 578                 results.put(recipient, List.of(result));
 579             } else if (recipient instanceof RecipientIdentifier.Group) {
 580                 final var groupId = ((RecipientIdentifier.Group) recipient).groupId;
 581                 final var result = sendHelper.sendAsGroupMessage(messageBuilder, groupId);
 582                 results.put(recipient, result);
 583             }
 584         }
 585         return new SendMessageResults(timestamp, results);
 586     }
 587
 588     private void sendTypingMessage(
 589             SignalServiceTypingMessage.Action action, Set<RecipientIdentifier> recipients
 590     ) throws IOException, UntrustedIdentityException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException {
 591         final var timestamp = System.currentTimeMillis();
 592         for (var recipient : recipients) {
 593             if (recipient instanceof RecipientIdentifier.Single) {
 594                 final var message = new SignalServiceTypingMessage(action, timestamp, Optional.absent());
 595                 final var recipientId = resolveRecipient((RecipientIdentifier.Single) recipient);
 596                 sendHelper.sendTypingMessage(message, recipientId);
 597             } else if (recipient instanceof RecipientIdentifier.Group) {
 598                 final var groupId = ((RecipientIdentifier.Group) recipient).groupId;
 599                 final var message = new SignalServiceTypingMessage(action, timestamp, Optional.of(groupId.serialize()));
 600                 sendHelper.sendGroupTypingMessage(message, groupId);
 601             }
 602         }
 603     }
 604
 605     @Override
 606     public void sendTypingMessage(
 607             TypingAction action, Set<RecipientIdentifier> recipients
 608     ) throws IOException, UntrustedIdentityException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException {
 609         sendTypingMessage(action.toSignalService(), recipients);
 610     }
 611
 612     @Override
 613     public void sendReadReceipt(
 614             RecipientIdentifier.Single sender, List<Long> messageIds
 615     ) throws IOException, UntrustedIdentityException {
 616         var receiptMessage = new SignalServiceReceiptMessage(SignalServiceReceiptMessage.Type.READ,
 617                 messageIds,
 618                 System.currentTimeMillis());
 619
 620         sendHelper.sendReceiptMessage(receiptMessage, resolveRecipient(sender));
 621     }
 622
 623     @Override
 624     public void sendViewedReceipt(
 625             RecipientIdentifier.Single sender, List<Long> messageIds
 626     ) throws IOException, UntrustedIdentityException {
 627         var receiptMessage = new SignalServiceReceiptMessage(SignalServiceReceiptMessage.Type.VIEWED,
 628                 messageIds,
 629                 System.currentTimeMillis());
 630
 631         sendHelper.sendReceiptMessage(receiptMessage, resolveRecipient(sender));
 632     }
 633
 634     @Override
 635     public SendMessageResults sendMessage(
 636             Message message, Set<RecipientIdentifier> recipients
 637     ) throws IOException, AttachmentInvalidException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException {
 638         final var messageBuilder = SignalServiceDataMessage.newBuilder();
 639         applyMessage(messageBuilder, message);
 640         return sendMessage(messageBuilder, recipients);
 641     }
 642
 643     private void applyMessage(
 644             final SignalServiceDataMessage.Builder messageBuilder, final Message message
 645     ) throws AttachmentInvalidException, IOException {
 646         messageBuilder.withBody(message.getMessageText());
 647         final var attachments = message.getAttachments();
 648         if (attachments != null) {
 649             messageBuilder.withAttachments(attachmentHelper.uploadAttachments(attachments));
 650         }
 651     }
 652
 653     @Override
 654     public SendMessageResults sendRemoteDeleteMessage(
 655             long targetSentTimestamp, Set<RecipientIdentifier> recipients
 656     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException {
 657         var delete = new SignalServiceDataMessage.RemoteDelete(targetSentTimestamp);
 658         final var messageBuilder = SignalServiceDataMessage.newBuilder().withRemoteDelete(delete);
 659         return sendMessage(messageBuilder, recipients);
 660     }
 661
 662     @Override
 663     public SendMessageResults sendMessageReaction(
 664             String emoji,
 665             boolean remove,
 666             RecipientIdentifier.Single targetAuthor,
 667             long targetSentTimestamp,
 668             Set<RecipientIdentifier> recipients
 669     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException {
 670         var targetAuthorRecipientId = resolveRecipient(targetAuthor);
 671         var reaction = new SignalServiceDataMessage.Reaction(emoji,
 672                 remove,
 673                 resolveSignalServiceAddress(targetAuthorRecipientId),
 674                 targetSentTimestamp);
 675         final var messageBuilder = SignalServiceDataMessage.newBuilder().withReaction(reaction);
 676         return sendMessage(messageBuilder, recipients);
 677     }
 678
 679     @Override
 680     public SendMessageResults sendEndSessionMessage(Set<RecipientIdentifier.Single> recipients) throws IOException {
 681         var messageBuilder = SignalServiceDataMessage.newBuilder().asEndSessionMessage();
 682
 683         try {
 684             return sendMessage(messageBuilder,
 685                     recipients.stream().map(RecipientIdentifier.class::cast).collect(Collectors.toSet()));
 686         } catch (GroupNotFoundException | NotAGroupMemberException | GroupSendingNotAllowedException e) {
 687             throw new AssertionError(e);
 688         } finally {
 689             for (var recipient : recipients) {
 690                 final var recipientId = resolveRecipient(recipient);
 691                 account.getSessionStore().deleteAllSessions(recipientId);
 692             }
 693         }
 694     }
 695
 696     @Override
 697     public void setContactName(
 698             RecipientIdentifier.Single recipient, String name
 699     ) throws NotMasterDeviceException, UnregisteredUserException {
 700         if (!account.isMasterDevice()) {
 701             throw new NotMasterDeviceException();
 702         }
 703         contactHelper.setContactName(resolveRecipient(recipient), name);
 704     }
 705
 706     @Override
 707     public void setContactBlocked(
 708             RecipientIdentifier.Single recipient, boolean blocked
 709     ) throws NotMasterDeviceException, IOException {
 710         if (!account.isMasterDevice()) {
 711             throw new NotMasterDeviceException();
 712         }
 713         contactHelper.setContactBlocked(resolveRecipient(recipient), blocked);
 714         // TODO cycle our profile key
 715         syncHelper.sendBlockedList();
 716     }
 717
 718     @Override
 719     public void setGroupBlocked(
 720             final GroupId groupId, final boolean blocked
 721     ) throws GroupNotFoundException, IOException, NotMasterDeviceException {
 722         if (!account.isMasterDevice()) {
 723             throw new NotMasterDeviceException();
 724         }
 725         groupHelper.setGroupBlocked(groupId, blocked);
 726         // TODO cycle our profile key
 727         syncHelper.sendBlockedList();
 728     }
 729
 730     /**
 731      * Change the expiration timer for a contact
 732      */
 733     @Override
 734     public void setExpirationTimer(
 735             RecipientIdentifier.Single recipient, int messageExpirationTimer
 736     ) throws IOException {
 737         var recipientId = resolveRecipient(recipient);
 738         contactHelper.setExpirationTimer(recipientId, messageExpirationTimer);
 739         final var messageBuilder = SignalServiceDataMessage.newBuilder().asExpirationUpdate();
 740         try {
 741             sendMessage(messageBuilder, Set.of(recipient));
 742         } catch (NotAGroupMemberException | GroupNotFoundException | GroupSendingNotAllowedException e) {
 743             throw new AssertionError(e);
 744         }
 745     }
 746
 747     /**
 748      * Upload the sticker pack from path.
 749      *
 750      * @param path Path can be a path to a manifest.json file or to a zip file that contains a manifest.json file
 751      * @return if successful, returns the URL to install the sticker pack in the signal app
 752      */
 753     @Override
 754     public URI uploadStickerPack(File path) throws IOException, StickerPackInvalidException {
 755         var manifest = StickerUtils.getSignalServiceStickerManifestUpload(path);
 756
 757         var messageSender = dependencies.getMessageSender();
 758
 759         var packKey = KeyUtils.createStickerUploadKey();
 760         var packIdString = messageSender.uploadStickerManifest(manifest, packKey);
 761         var packId = StickerPackId.deserialize(Hex.fromStringCondensed(packIdString));
 762
 763         var sticker = new Sticker(packId, packKey);
 764         account.getStickerStore().updateSticker(sticker);
 765
 766         try {
 767             return new URI("https",
 768                     "signal.art",
 769                     "/addstickers/",
 770                     "pack_id="
 771                             + URLEncoder.encode(Hex.toStringCondensed(packId.serialize()), StandardCharsets.UTF_8)
 772                             + "&pack_key="
 773                             + URLEncoder.encode(Hex.toStringCondensed(packKey), StandardCharsets.UTF_8));
 774         } catch (URISyntaxException e) {
 775             throw new AssertionError(e);
 776         }
 777     }
 778
 779     @Override
 780     public void requestAllSyncData() throws IOException {
 781         syncHelper.requestAllSyncData();
 782         retrieveRemoteStorage();
 783     }
 784
 785     void retrieveRemoteStorage() throws IOException {
 786         if (account.getStorageKey() != null) {
 787             storageHelper.readDataFromStorage();
 788         }
 789     }
 790
 791     private RecipientId refreshRegisteredUser(RecipientId recipientId) throws IOException {
 792         final var address = resolveSignalServiceAddress(recipientId);
 793         if (!address.getNumber().isPresent()) {
 794             return recipientId;
 795         }
 796         final var number = address.getNumber().get();
 797         final var uuid = getRegisteredUser(number);
 798         return resolveRecipientTrusted(new SignalServiceAddress(uuid, number));
 799     }
 800
 801     private UUID getRegisteredUser(final String number) throws IOException {
 802         final Map<String, UUID> uuidMap;
 803         try {
 804             uuidMap = getRegisteredUsers(Set.of(number));
 805         } catch (NumberFormatException e) {
 806             throw new UnregisteredUserException(number, e);
 807         }
 808         final var uuid = uuidMap.get(number);
 809         if (uuid == null) {
 810             throw new UnregisteredUserException(number, null);
 811         }
 812         return uuid;
 813     }
 814
 815     private Map<String, UUID> getRegisteredUsers(final Set<String> numbers) throws IOException {
 816         final Map<String, UUID> registeredUsers;
 817         try {
 818             registeredUsers = dependencies.getAccountManager()
 819                     .getRegisteredUsers(ServiceConfig.getIasKeyStore(),
 820                             numbers,
 821                             serviceEnvironmentConfig.getCdsMrenclave());
 822         } catch (Quote.InvalidQuoteFormatException | UnauthenticatedQuoteException | SignatureException | UnauthenticatedResponseException | InvalidKeyException e) {
 823             throw new IOException(e);
 824         }
 825
 826         // Store numbers as recipients so we have the number/uuid association
 827         registeredUsers.forEach((number, uuid) -> resolveRecipientTrusted(new SignalServiceAddress(uuid, number)));
 828
 829         return registeredUsers;
 830     }
 831
 832     private void retryFailedReceivedMessages(ReceiveMessageHandler handler) {
 833         Set<HandleAction> queuedActions = new HashSet<>();
 834         for (var cachedMessage : account.getMessageCache().getCachedMessages()) {
 835             var actions = retryFailedReceivedMessage(handler, cachedMessage);
 836             if (actions != null) {
 837                 queuedActions.addAll(actions);
 838             }
 839         }
 840         handleQueuedActions(queuedActions);
 841     }
 842
 843     private List<HandleAction> retryFailedReceivedMessage(
 844             final ReceiveMessageHandler handler, final CachedMessage cachedMessage
 845     ) {
 846         var envelope = cachedMessage.loadEnvelope();
 847         if (envelope == null) {
 848             cachedMessage.delete();
 849             return null;
 850         }
 851
 852         final var result = incomingMessageHandler.handleRetryEnvelope(envelope, ignoreAttachments, handler);
 853         final var actions = result.first();
 854         final var exception = result.second();
 855
 856         if (exception instanceof UntrustedIdentityException) {
 857             if (System.currentTimeMillis() - envelope.getServerDeliveredTimestamp() > 1000L * 60 * 60 * 24 * 30) {
 858                 // Envelope is more than a month old, cleaning up.
 859                 cachedMessage.delete();
 860                 return null;
 861             }
 862             if (!envelope.hasSourceUuid()) {
 863                 final var identifier = ((UntrustedIdentityException) exception).getSender();
 864                 final var recipientId = account.getRecipientStore().resolveRecipient(identifier);
 865                 try {
 866                     account.getMessageCache().replaceSender(cachedMessage, recipientId);
 867                 } catch (IOException ioException) {
 868                     logger.warn("Failed to move cached message to recipient folder: {}", ioException.getMessage());
 869                 }
 870             }
 871             return null;
 872         }
 873
 874         // If successful and for all other errors that are not recoverable, delete the cached message
 875         cachedMessage.delete();
 876         return actions;
 877     }
 878
 879     @Override
 880     public void addReceiveHandler(final ReceiveMessageHandler handler) {
 881         if (isReceivingSynchronous) {
 882             throw new IllegalStateException("Already receiving message synchronously.");
 883         }
 884         synchronized (messageHandlers) {
 885             messageHandlers.add(handler);
 886
 887             startReceiveThreadIfRequired();
 888         }
 889     }
 890
 891     private void startReceiveThreadIfRequired() {
 892         if (receiveThread != null) {
 893             return;
 894         }
 895         receiveThread = new Thread(() -> {
 896             while (!Thread.interrupted()) {
 897                 try {
 898                     receiveMessagesInternal(1L, TimeUnit.HOURS, false, (envelope, decryptedContent, e) -> {
 899                         synchronized (messageHandlers) {
 900                             for (ReceiveMessageHandler h : messageHandlers) {
 901                                 try {
 902                                     h.handleMessage(envelope, decryptedContent, e);
 903                                 } catch (Exception ex) {
 904                                     logger.warn("Message handler failed, ignoring", ex);
 905                                 }
 906                             }
 907                         }
 908                     });
 909                     break;
 910                 } catch (IOException e) {
 911                     logger.warn("Receiving messages failed, retrying", e);
 912                 }
 913             }
 914             hasCaughtUpWithOldMessages = false;
 915             synchronized (messageHandlers) {
 916                 receiveThread = null;
 917
 918                 // Check if in the meantime another handler has been registered
 919                 if (!messageHandlers.isEmpty()) {
 920                     startReceiveThreadIfRequired();
 921                 }
 922             }
 923         });
 924
 925         receiveThread.start();
 926     }
 927
 928     @Override
 929     public void removeReceiveHandler(final ReceiveMessageHandler handler) {
 930         final Thread thread;
 931         synchronized (messageHandlers) {
 932             thread = receiveThread;
 933             receiveThread = null;
 934             messageHandlers.remove(handler);
 935             if (!messageHandlers.isEmpty() || isReceivingSynchronous) {
 936                 return;
 937             }
 938         }
 939
 940         stopReceiveThread(thread);
 941     }
 942
 943     private void stopReceiveThread(final Thread thread) {
 944         thread.interrupt();
 945         try {
 946             thread.join();
 947         } catch (InterruptedException ignored) {
 948         }
 949     }
 950
 951     @Override
 952     public boolean isReceiving() {
 953         if (isReceivingSynchronous) {
 954             return true;
 955         }
 956         synchronized (messageHandlers) {
 957             return messageHandlers.size() > 0;
 958         }
 959     }
 960
 961     @Override
 962     public void receiveMessages(long timeout, TimeUnit unit, ReceiveMessageHandler handler) throws IOException {
 963         receiveMessages(timeout, unit, true, handler);
 964     }
 965
 966     @Override
 967     public void receiveMessages(ReceiveMessageHandler handler) throws IOException {
 968         receiveMessages(1L, TimeUnit.HOURS, false, handler);
 969     }
 970
 971     private void receiveMessages(
 972             long timeout, TimeUnit unit, boolean returnOnTimeout, ReceiveMessageHandler handler
 973     ) throws IOException {
 974         if (isReceiving()) {
 975             throw new IllegalStateException("Already receiving message.");
 976         }
 977         isReceivingSynchronous = true;
 978         receiveThread = Thread.currentThread();
 979         try {
 980             receiveMessagesInternal(timeout, unit, returnOnTimeout, handler);
 981         } finally {
 982             receiveThread = null;
 983             hasCaughtUpWithOldMessages = false;
 984             isReceivingSynchronous = false;
 985         }
 986     }
 987
 988     private void receiveMessagesInternal(
 989             long timeout, TimeUnit unit, boolean returnOnTimeout, ReceiveMessageHandler handler
 990     ) throws IOException {
 991         retryFailedReceivedMessages(handler);
 992
 993         Set<HandleAction> queuedActions = new HashSet<>();
 994
 995         final var signalWebSocket = dependencies.getSignalWebSocket();
 996         signalWebSocket.connect();
 997
 998         hasCaughtUpWithOldMessages = false;
 999         var backOffCounter = 0;
1000         final var MAX_BACKOFF_COUNTER = 9;
1001
1002         while (!Thread.interrupted()) {
1003             SignalServiceEnvelope envelope;
1004             final CachedMessage[] cachedMessage = {null};
1005             account.setLastReceiveTimestamp(System.currentTimeMillis());
1006             logger.debug("Checking for new message from server");
1007             try {
1008                 var result = signalWebSocket.readOrEmpty(unit.toMillis(timeout), envelope1 -> {
1009                     final var recipientId = envelope1.hasSourceUuid()
1010                             ? resolveRecipient(envelope1.getSourceAddress())
1011                             : null;
1012                     // store message on disk, before acknowledging receipt to the server
1013                     cachedMessage[0] = account.getMessageCache().cacheMessage(envelope1, recipientId);
1014                 });
1015                 backOffCounter = 0;
1016
1017                 if (result.isPresent()) {
1018                     envelope = result.get();
1019                     logger.debug("New message received from server");
1020                 } else {
1021                     logger.debug("Received indicator that server queue is empty");
1022                     handleQueuedActions(queuedActions);
1023                     queuedActions.clear();
1024
1025                     hasCaughtUpWithOldMessages = true;
1026                     synchronized (this) {
1027                         this.notifyAll();
1028                     }
1029
1030                     // Continue to wait another timeout for new messages
1031                     continue;
1032                 }
1033             } catch (AssertionError e) {
1034                 if (e.getCause() instanceof InterruptedException) {
1035                     Thread.currentThread().interrupt();
1036                     break;
1037                 } else {
1038                     throw e;
1039                 }
1040             } catch (IOException e) {
1041                 logger.debug("Pipe unexpectedly unavailable: {}", e.getMessage());
1042                 if (e instanceof WebSocketUnavailableException || "Connection closed!".equals(e.getMessage())) {
1043                     final var sleepMilliseconds = 100 * (long) Math.pow(2, backOffCounter);
1044                     backOffCounter = Math.min(backOffCounter + 1, MAX_BACKOFF_COUNTER);
1045                     logger.warn("Connection closed unexpectedly, reconnecting in {} ms", sleepMilliseconds);
1046                     try {
1047                         Thread.sleep(sleepMilliseconds);
1048                     } catch (InterruptedException interruptedException) {
1049                         return;
1050                     }
1051                     hasCaughtUpWithOldMessages = false;
1052                     signalWebSocket.connect();
1053                     continue;
1054                 }
1055                 throw e;
1056             } catch (TimeoutException e) {
1057                 backOffCounter = 0;
1058                 if (returnOnTimeout) return;
1059                 continue;
1060             }
1061
1062             final var result = incomingMessageHandler.handleEnvelope(envelope, ignoreAttachments, handler);
1063             queuedActions.addAll(result.first());
1064             final var exception = result.second();
1065
1066             if (hasCaughtUpWithOldMessages) {
1067                 handleQueuedActions(queuedActions);
1068                 queuedActions.clear();
1069             }
1070             if (cachedMessage[0] != null) {
1071                 if (exception instanceof UntrustedIdentityException) {
1072                     logger.debug("Keeping message with untrusted identity in message cache");
1073                     final var address = ((UntrustedIdentityException) exception).getSender();
1074                     final var recipientId = resolveRecipient(address);
1075                     if (!envelope.hasSourceUuid()) {
1076                         try {
1077                             cachedMessage[0] = account.getMessageCache().replaceSender(cachedMessage[0], recipientId);
1078                         } catch (IOException ioException) {
1079                             logger.warn("Failed to move cached message to recipient folder: {}",
1080                                     ioException.getMessage());
1081                         }
1082                     }
1083                 } else {
1084                     cachedMessage[0].delete();
1085                 }
1086             }
1087         }
1088         handleQueuedActions(queuedActions);
1089         queuedActions.clear();
1090     }
1091
1092     @Override
1093     public void setIgnoreAttachments(final boolean ignoreAttachments) {
1094         this.ignoreAttachments = ignoreAttachments;
1095     }
1096
1097     @Override
1098     public boolean hasCaughtUpWithOldMessages() {
1099         return hasCaughtUpWithOldMessages;
1100     }
1101
1102     private void handleQueuedActions(final Collection<HandleAction> queuedActions) {
1103         logger.debug("Handling message actions");
1104         var interrupted = false;
1105         for (var action : queuedActions) {
1106             try {
1107                 action.execute(context);
1108             } catch (Throwable e) {
1109                 if ((e instanceof AssertionError || e instanceof RuntimeException)
1110                         && e.getCause() instanceof InterruptedException) {
1111                     interrupted = true;
1112                     continue;
1113                 }
1114                 logger.warn("Message action failed.", e);
1115             }
1116         }
1117         if (interrupted) {
1118             Thread.currentThread().interrupt();
1119         }
1120     }
1121
1122     @Override
1123     public boolean isContactBlocked(final RecipientIdentifier.Single recipient) {
1124         final RecipientId recipientId;
1125         try {
1126             recipientId = resolveRecipient(recipient);
1127         } catch (UnregisteredUserException e) {
1128             return false;
1129         }
1130         return contactHelper.isContactBlocked(recipientId);
1131     }
1132
1133     @Override
1134     public File getAttachmentFile(SignalServiceAttachmentRemoteId attachmentId) {
1135         return attachmentHelper.getAttachmentFile(attachmentId);
1136     }
1137
1138     @Override
1139     public void sendContacts() throws IOException {
1140         syncHelper.sendContacts();
1141     }
1142
1143     @Override
1144     public List<Pair<RecipientAddress, Contact>> getContacts() {
1145         return account.getContactStore()
1146                 .getContacts()
1147                 .stream()
1148                 .map(p -> new Pair<>(account.getRecipientStore().resolveRecipientAddress(p.first()), p.second()))
1149                 .collect(Collectors.toList());
1150     }
1151
1152     @Override
1153     public String getContactOrProfileName(RecipientIdentifier.Single recipient) {
1154         final RecipientId recipientId;
1155         try {
1156             recipientId = resolveRecipient(recipient);
1157         } catch (UnregisteredUserException e) {
1158             return null;
1159         }
1160
1161         final var contact = account.getContactStore().getContact(recipientId);
1162         if (contact != null && !Util.isEmpty(contact.getName())) {
1163             return contact.getName();
1164         }
1165
1166         final var profile = getRecipientProfile(recipientId);
1167         if (profile != null) {
1168             return profile.getDisplayName();
1169         }
1170
1171         return null;
1172     }
1173
1174     @Override
1175     public Group getGroup(GroupId groupId) {
1176         return toGroup(groupHelper.getGroup(groupId));
1177     }
1178
1179     private GroupInfo getGroupInfo(GroupId groupId) {
1180         return groupHelper.getGroup(groupId);
1181     }
1182
1183     @Override
1184     public List<Identity> getIdentities() {
1185         return account.getIdentityKeyStore()
1186                 .getIdentities()
1187                 .stream()
1188                 .map(this::toIdentity)
1189                 .collect(Collectors.toList());
1190     }
1191
1192     private Identity toIdentity(final IdentityInfo identityInfo) {
1193         if (identityInfo == null) {
1194             return null;
1195         }
1196
1197         final var address = account.getRecipientStore().resolveRecipientAddress(identityInfo.getRecipientId());
1198         final var scannableFingerprint = identityHelper.computeSafetyNumberForScanning(identityInfo.getRecipientId(),
1199                 identityInfo.getIdentityKey());
1200         return new Identity(address,
1201                 identityInfo.getIdentityKey(),
1202                 identityHelper.computeSafetyNumber(identityInfo.getRecipientId(), identityInfo.getIdentityKey()),
1203                 scannableFingerprint == null ? null : scannableFingerprint.getSerialized(),
1204                 identityInfo.getTrustLevel(),
1205                 identityInfo.getDateAdded());
1206     }
1207
1208     @Override
1209     public List<Identity> getIdentities(RecipientIdentifier.Single recipient) {
1210         IdentityInfo identity;
1211         try {
1212             identity = account.getIdentityKeyStore().getIdentity(resolveRecipient(recipient));
1213         } catch (UnregisteredUserException e) {
1214             identity = null;
1215         }
1216         return identity == null ? List.of() : List.of(toIdentity(identity));
1217     }
1218
1219     /**
1220      * Trust this the identity with this fingerprint
1221      *
1222      * @param recipient   username of the identity
1223      * @param fingerprint Fingerprint
1224      */
1225     @Override
1226     public boolean trustIdentityVerified(RecipientIdentifier.Single recipient, byte[] fingerprint) {
1227         RecipientId recipientId;
1228         try {
1229             recipientId = resolveRecipient(recipient);
1230         } catch (UnregisteredUserException e) {
1231             return false;
1232         }
1233         return identityHelper.trustIdentityVerified(recipientId, fingerprint);
1234     }
1235
1236     /**
1237      * Trust this the identity with this safety number
1238      *
1239      * @param recipient    username of the identity
1240      * @param safetyNumber Safety number
1241      */
1242     @Override
1243     public boolean trustIdentityVerifiedSafetyNumber(RecipientIdentifier.Single recipient, String safetyNumber) {
1244         RecipientId recipientId;
1245         try {
1246             recipientId = resolveRecipient(recipient);
1247         } catch (UnregisteredUserException e) {
1248             return false;
1249         }
1250         return identityHelper.trustIdentityVerifiedSafetyNumber(recipientId, safetyNumber);
1251     }
1252
1253     /**
1254      * Trust this the identity with this scannable safety number
1255      *
1256      * @param recipient    username of the identity
1257      * @param safetyNumber Scannable safety number
1258      */
1259     @Override
1260     public boolean trustIdentityVerifiedSafetyNumber(RecipientIdentifier.Single recipient, byte[] safetyNumber) {
1261         RecipientId recipientId;
1262         try {
1263             recipientId = resolveRecipient(recipient);
1264         } catch (UnregisteredUserException e) {
1265             return false;
1266         }
1267         return identityHelper.trustIdentityVerifiedSafetyNumber(recipientId, safetyNumber);
1268     }
1269
1270     /**
1271      * Trust all keys of this identity without verification
1272      *
1273      * @param recipient username of the identity
1274      */
1275     @Override
1276     public boolean trustIdentityAllKeys(RecipientIdentifier.Single recipient) {
1277         RecipientId recipientId;
1278         try {
1279             recipientId = resolveRecipient(recipient);
1280         } catch (UnregisteredUserException e) {
1281             return false;
1282         }
1283         return identityHelper.trustIdentityAllKeys(recipientId);
1284     }
1285
1286     private void handleIdentityFailure(
1287             final RecipientId recipientId, final SendMessageResult.IdentityFailure identityFailure
1288     ) {
1289         this.identityHelper.handleIdentityFailure(recipientId, identityFailure);
1290     }
1291
1292     @Override
1293     public SignalServiceAddress resolveSignalServiceAddress(SignalServiceAddress address) {
1294         return resolveSignalServiceAddress(resolveRecipient(address));
1295     }
1296
1297     private SignalServiceAddress resolveSignalServiceAddress(RecipientId recipientId) {
1298         final var address = account.getRecipientStore().resolveRecipientAddress(recipientId);
1299         if (address.getUuid().isPresent()) {
1300             return address.toSignalServiceAddress();
1301         }
1302
1303         // Address in recipient store doesn't have a uuid, this shouldn't happen
1304         // Try to retrieve the uuid from the server
1305         final var number = address.getNumber().get();
1306         final UUID uuid;
1307         try {
1308             uuid = getRegisteredUser(number);
1309         } catch (IOException e) {
1310             logger.warn("Failed to get uuid for e164 number: {}", number, e);
1311             // Return SignalServiceAddress with unknown UUID
1312             return address.toSignalServiceAddress();
1313         }
1314         return resolveSignalServiceAddress(account.getRecipientStore().resolveRecipient(uuid));
1315     }
1316
1317     private Set<RecipientId> resolveRecipients(Collection<RecipientIdentifier.Single> recipients) throws UnregisteredUserException {
1318         final var recipientIds = new HashSet<RecipientId>(recipients.size());
1319         for (var number : recipients) {
1320             final var recipientId = resolveRecipient(number);
1321             recipientIds.add(recipientId);
1322         }
1323         return recipientIds;
1324     }
1325
1326     private RecipientId resolveRecipient(final RecipientIdentifier.Single recipient) throws UnregisteredUserException {
1327         if (recipient instanceof RecipientIdentifier.Uuid) {
1328             return account.getRecipientStore().resolveRecipient(((RecipientIdentifier.Uuid) recipient).uuid);
1329         } else {
1330             final var number = ((RecipientIdentifier.Number) recipient).number;
1331             return account.getRecipientStore().resolveRecipient(number, () -> {
1332                 try {
1333                     return getRegisteredUser(number);
1334                 } catch (IOException e) {
1335                     return null;
1336                 }
1337             });
1338         }
1339     }
1340
1341     private RecipientId resolveRecipient(SignalServiceAddress address) {
1342         return account.getRecipientStore().resolveRecipient(address);
1343     }
1344
1345     private RecipientId resolveRecipientTrusted(SignalServiceAddress address) {
1346         return account.getRecipientStore().resolveRecipientTrusted(address);
1347     }
1348
1349     @Override
1350     public void close() throws IOException {
1351         close(true);
1352     }
1353
1354     private void close(boolean closeAccount) throws IOException {
1355         Thread thread;
1356         synchronized (messageHandlers) {
1357             messageHandlers.clear();
1358             thread = receiveThread;
1359             receiveThread = null;
1360         }
1361         if (thread != null) {
1362             stopReceiveThread(thread);
1363         }
1364         executor.shutdown();
1365
1366         dependencies.getSignalWebSocket().disconnect();
1367
1368         if (closeAccount && account != null) {
1369             account.close();
1370         }
1371         account = null;
1372     }
1373 }