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.Configuration;
  21 import org.asamk.signal.manager.api.Device;
  22 import org.asamk.signal.manager.api.Group;
  23 import org.asamk.signal.manager.api.Identity;
  24 import org.asamk.signal.manager.api.InactiveGroupLinkException;
  25 import org.asamk.signal.manager.api.InvalidDeviceLinkException;
  26 import org.asamk.signal.manager.api.Message;
  27 import org.asamk.signal.manager.api.Pair;
  28 import org.asamk.signal.manager.api.RecipientIdentifier;
  29 import org.asamk.signal.manager.api.SendGroupMessageResults;
  30 import org.asamk.signal.manager.api.SendMessageResult;
  31 import org.asamk.signal.manager.api.SendMessageResults;
  32 import org.asamk.signal.manager.api.TypingAction;
  33 import org.asamk.signal.manager.api.UpdateGroup;
  34 import org.asamk.signal.manager.config.ServiceConfig;
  35 import org.asamk.signal.manager.config.ServiceEnvironmentConfig;
  36 import org.asamk.signal.manager.groups.GroupId;
  37 import org.asamk.signal.manager.groups.GroupInviteLinkUrl;
  38 import org.asamk.signal.manager.groups.GroupNotFoundException;
  39 import org.asamk.signal.manager.groups.GroupSendingNotAllowedException;
  40 import org.asamk.signal.manager.groups.LastGroupAdminException;
  41 import org.asamk.signal.manager.groups.NotAGroupMemberException;
  42 import org.asamk.signal.manager.helper.AttachmentHelper;
  43 import org.asamk.signal.manager.helper.ContactHelper;
  44 import org.asamk.signal.manager.helper.GroupHelper;
  45 import org.asamk.signal.manager.helper.GroupV2Helper;
  46 import org.asamk.signal.manager.helper.IdentityHelper;
  47 import org.asamk.signal.manager.helper.IncomingMessageHandler;
  48 import org.asamk.signal.manager.helper.PinHelper;
  49 import org.asamk.signal.manager.helper.PreKeyHelper;
  50 import org.asamk.signal.manager.helper.ProfileHelper;
  51 import org.asamk.signal.manager.helper.SendHelper;
  52 import org.asamk.signal.manager.helper.StorageHelper;
  53 import org.asamk.signal.manager.helper.SyncHelper;
  54 import org.asamk.signal.manager.helper.UnidentifiedAccessHelper;
  55 import org.asamk.signal.manager.jobs.Context;
  56 import org.asamk.signal.manager.storage.SignalAccount;
  57 import org.asamk.signal.manager.storage.groups.GroupInfo;
  58 import org.asamk.signal.manager.storage.identities.IdentityInfo;
  59 import org.asamk.signal.manager.storage.messageCache.CachedMessage;
  60 import org.asamk.signal.manager.storage.recipients.Contact;
  61 import org.asamk.signal.manager.storage.recipients.Profile;
  62 import org.asamk.signal.manager.storage.recipients.RecipientAddress;
  63 import org.asamk.signal.manager.storage.recipients.RecipientId;
  64 import org.asamk.signal.manager.storage.stickers.Sticker;
  65 import org.asamk.signal.manager.storage.stickers.StickerPackId;
  66 import org.asamk.signal.manager.util.KeyUtils;
  67 import org.asamk.signal.manager.util.StickerUtils;
  68 import org.slf4j.Logger;
  69 import org.slf4j.LoggerFactory;
  70 import org.whispersystems.libsignal.InvalidKeyException;
  71 import org.whispersystems.libsignal.ecc.ECPublicKey;
  72 import org.whispersystems.libsignal.util.guava.Optional;
  73 import org.whispersystems.signalservice.api.SignalSessionLock;
  74 import org.whispersystems.signalservice.api.messages.SignalServiceDataMessage;
  75 import org.whispersystems.signalservice.api.messages.SignalServiceEnvelope;
  76 import org.whispersystems.signalservice.api.messages.SignalServiceReceiptMessage;
  77 import org.whispersystems.signalservice.api.messages.SignalServiceTypingMessage;
  78 import org.whispersystems.signalservice.api.push.ACI;
  79 import org.whispersystems.signalservice.api.push.SignalServiceAddress;
  80 import org.whispersystems.signalservice.api.util.DeviceNameUtil;
  81 import org.whispersystems.signalservice.api.util.InvalidNumberException;
  82 import org.whispersystems.signalservice.api.util.PhoneNumberFormatter;
  83 import org.whispersystems.signalservice.api.websocket.WebSocketUnavailableException;
  84 import org.whispersystems.signalservice.internal.contacts.crypto.Quote;
  85 import org.whispersystems.signalservice.internal.contacts.crypto.UnauthenticatedQuoteException;
  86 import org.whispersystems.signalservice.internal.contacts.crypto.UnauthenticatedResponseException;
  87 import org.whispersystems.signalservice.internal.util.DynamicCredentialsProvider;
  88 import org.whispersystems.signalservice.internal.util.Hex;
  89 import org.whispersystems.signalservice.internal.util.Util;
  90
  91 import java.io.File;
  92 import java.io.IOException;
  93 import java.net.URI;
  94 import java.net.URISyntaxException;
  95 import java.net.URLEncoder;
  96 import java.nio.charset.StandardCharsets;
  97 import java.security.SignatureException;
  98 import java.util.Collection;
  99 import java.util.HashMap;
 100 import java.util.HashSet;
 101 import java.util.List;
 102 import java.util.Map;
 103 import java.util.Set;
 104 import java.util.UUID;
 105 import java.util.concurrent.ExecutorService;
 106 import java.util.concurrent.Executors;
 107 import java.util.concurrent.TimeUnit;
 108 import java.util.concurrent.TimeoutException;
 109 import java.util.concurrent.locks.ReentrantLock;
 110 import java.util.stream.Collectors;
 111
 112 import static org.asamk.signal.manager.config.ServiceConfig.capabilities;
 113
 114 public class ManagerImpl implements Manager {
 115
 116     private final static Logger logger = LoggerFactory.getLogger(ManagerImpl.class);
 117
 118     private final ServiceEnvironmentConfig serviceEnvironmentConfig;
 119     private final SignalDependencies dependencies;
 120
 121     private SignalAccount account;
 122
 123     private final ExecutorService executor = Executors.newCachedThreadPool();
 124
 125     private final ProfileHelper profileHelper;
 126     private final PinHelper pinHelper;
 127     private final StorageHelper storageHelper;
 128     private final SendHelper sendHelper;
 129     private final SyncHelper syncHelper;
 130     private final AttachmentHelper attachmentHelper;
 131     private final GroupHelper groupHelper;
 132     private final ContactHelper contactHelper;
 133     private final IncomingMessageHandler incomingMessageHandler;
 134     private final PreKeyHelper preKeyHelper;
 135     private final IdentityHelper identityHelper;
 136
 137     private final Context context;
 138     private boolean hasCaughtUpWithOldMessages = false;
 139     private boolean ignoreAttachments = false;
 140
 141     private Thread receiveThread;
 142     private final Set<ReceiveMessageHandler> messageHandlers = new HashSet<>();
 143     private boolean isReceivingSynchronous;
 144
 145     ManagerImpl(
 146             SignalAccount account,
 147             PathConfig pathConfig,
 148             ServiceEnvironmentConfig serviceEnvironmentConfig,
 149             String userAgent
 150     ) {
 151         this.account = account;
 152         this.serviceEnvironmentConfig = serviceEnvironmentConfig;
 153
 154         final var credentialsProvider = new DynamicCredentialsProvider(account.getAci(),
 155                 account.getUsername(),
 156                 account.getPassword(),
 157                 account.getDeviceId());
 158         final var sessionLock = new SignalSessionLock() {
 159             private final ReentrantLock LEGACY_LOCK = new ReentrantLock();
 160
 161             @Override
 162             public Lock acquire() {
 163                 LEGACY_LOCK.lock();
 164                 return LEGACY_LOCK::unlock;
 165             }
 166         };
 167         this.dependencies = new SignalDependencies(serviceEnvironmentConfig,
 168                 userAgent,
 169                 credentialsProvider,
 170                 account.getSignalProtocolStore(),
 171                 executor,
 172                 sessionLock);
 173         final var avatarStore = new AvatarStore(pathConfig.avatarsPath());
 174         final var attachmentStore = new AttachmentStore(pathConfig.attachmentsPath());
 175         final var stickerPackStore = new StickerPackStore(pathConfig.stickerPacksPath());
 176
 177         this.attachmentHelper = new AttachmentHelper(dependencies, attachmentStore);
 178         this.pinHelper = new PinHelper(dependencies.getKeyBackupService());
 179         final var unidentifiedAccessHelper = new UnidentifiedAccessHelper(account,
 180                 dependencies,
 181                 account::getProfileKey,
 182                 this::getRecipientProfile);
 183         this.profileHelper = new ProfileHelper(account,
 184                 dependencies,
 185                 avatarStore,
 186                 unidentifiedAccessHelper::getAccessFor,
 187                 this::resolveSignalServiceAddress);
 188         final GroupV2Helper groupV2Helper = new GroupV2Helper(profileHelper::getRecipientProfileKeyCredential,
 189                 this::getRecipientProfile,
 190                 account::getSelfRecipientId,
 191                 dependencies.getGroupsV2Operations(),
 192                 dependencies.getGroupsV2Api(),
 193                 this::resolveSignalServiceAddress);
 194         this.sendHelper = new SendHelper(account,
 195                 dependencies,
 196                 unidentifiedAccessHelper,
 197                 this::resolveSignalServiceAddress,
 198                 account.getRecipientStore(),
 199                 this::handleIdentityFailure,
 200                 this::getGroupInfo,
 201                 this::refreshRegisteredUser);
 202         this.groupHelper = new GroupHelper(account,
 203                 dependencies,
 204                 attachmentHelper,
 205                 sendHelper,
 206                 groupV2Helper,
 207                 avatarStore,
 208                 this::resolveSignalServiceAddress,
 209                 account.getRecipientStore());
 210         this.storageHelper = new StorageHelper(account, dependencies, groupHelper, profileHelper);
 211         this.contactHelper = new ContactHelper(account);
 212         this.syncHelper = new SyncHelper(account,
 213                 attachmentHelper,
 214                 sendHelper,
 215                 groupHelper,
 216                 avatarStore,
 217                 this::resolveSignalServiceAddress);
 218         preKeyHelper = new PreKeyHelper(account, dependencies);
 219
 220         this.context = new Context(account,
 221                 dependencies,
 222                 stickerPackStore,
 223                 sendHelper,
 224                 groupHelper,
 225                 syncHelper,
 226                 profileHelper,
 227                 storageHelper,
 228                 preKeyHelper);
 229         var jobExecutor = new JobExecutor(context);
 230
 231         this.incomingMessageHandler = new IncomingMessageHandler(account,
 232                 dependencies,
 233                 account.getRecipientStore(),
 234                 this::resolveSignalServiceAddress,
 235                 groupHelper,
 236                 contactHelper,
 237                 attachmentHelper,
 238                 syncHelper,
 239                 this::getRecipientProfile,
 240                 jobExecutor);
 241         this.identityHelper = new IdentityHelper(account,
 242                 dependencies,
 243                 this::resolveSignalServiceAddress,
 244                 syncHelper,
 245                 profileHelper);
 246     }
 247
 248     @Override
 249     public String getSelfNumber() {
 250         return account.getUsername();
 251     }
 252
 253     @Override
 254     public void checkAccountState() throws IOException {
 255         if (account.getLastReceiveTimestamp() == 0) {
 256             logger.info("The Signal protocol expects that incoming messages are regularly received.");
 257         } else {
 258             var diffInMilliseconds = System.currentTimeMillis() - account.getLastReceiveTimestamp();
 259             long days = TimeUnit.DAYS.convert(diffInMilliseconds, TimeUnit.MILLISECONDS);
 260             if (days > 7) {
 261                 logger.warn(
 262                         "Messages have been last received {} days ago. The Signal protocol expects that incoming messages are regularly received.",
 263                         days);
 264             }
 265         }
 266         preKeyHelper.refreshPreKeysIfNecessary();
 267         if (account.getAci() == null) {
 268             account.setAci(dependencies.getAccountManager().getOwnAci());
 269         }
 270         updateAccountAttributes(null);
 271     }
 272
 273     /**
 274      * This is used for checking a set of phone numbers for registration on Signal
 275      *
 276      * @param numbers The set of phone number in question
 277      * @return A map of numbers to canonicalized number and uuid. If a number is not registered the uuid is null.
 278      * @throws IOException if its unable to get the contacts to check if they're registered
 279      */
 280     @Override
 281     public Map<String, Pair<String, UUID>> areUsersRegistered(Set<String> numbers) throws IOException {
 282         Map<String, String> canonicalizedNumbers = numbers.stream().collect(Collectors.toMap(n -> n, n -> {
 283             try {
 284                 return PhoneNumberFormatter.formatNumber(n, account.getUsername());
 285             } catch (InvalidNumberException e) {
 286                 return "";
 287             }
 288         }));
 289
 290         // Note "registeredUsers" has no optionals. It only gives us info on users who are registered
 291         var registeredUsers = getRegisteredUsers(canonicalizedNumbers.values()
 292                 .stream()
 293                 .filter(s -> !s.isEmpty())
 294                 .collect(Collectors.toSet()));
 295
 296         return numbers.stream().collect(Collectors.toMap(n -> n, n -> {
 297             final var number = canonicalizedNumbers.get(n);
 298             final var aci = registeredUsers.get(number);
 299             return new Pair<>(number.isEmpty() ? null : number, aci == null ? null : aci.uuid());
 300         }));
 301     }
 302
 303     @Override
 304     public void updateAccountAttributes(String deviceName) throws IOException {
 305         final String encryptedDeviceName;
 306         if (deviceName == null) {
 307             encryptedDeviceName = account.getEncryptedDeviceName();
 308         } else {
 309             final var privateKey = account.getIdentityKeyPair().getPrivateKey();
 310             encryptedDeviceName = DeviceNameUtil.encryptDeviceName(deviceName, privateKey);
 311             account.setEncryptedDeviceName(encryptedDeviceName);
 312         }
 313         dependencies.getAccountManager()
 314                 .setAccountAttributes(encryptedDeviceName,
 315                         null,
 316                         account.getLocalRegistrationId(),
 317                         true,
 318                         null,
 319                         account.getPinMasterKey() == null ? null : account.getPinMasterKey().deriveRegistrationLock(),
 320                         account.getSelfUnidentifiedAccessKey(),
 321                         account.isUnrestrictedUnidentifiedAccess(),
 322                         capabilities,
 323                         account.isDiscoverableByPhoneNumber());
 324     }
 325
 326     @Override
 327     public Configuration getConfiguration() {
 328         final var configurationStore = account.getConfigurationStore();
 329         return new Configuration(java.util.Optional.ofNullable(configurationStore.getReadReceipts()),
 330                 java.util.Optional.ofNullable(configurationStore.getUnidentifiedDeliveryIndicators()),
 331                 java.util.Optional.ofNullable(configurationStore.getTypingIndicators()),
 332                 java.util.Optional.ofNullable(configurationStore.getLinkPreviews()));
 333     }
 334
 335     @Override
 336     public void updateConfiguration(
 337             Configuration configuration
 338     ) throws IOException, NotMasterDeviceException {
 339         if (!account.isMasterDevice()) {
 340             throw new NotMasterDeviceException();
 341         }
 342
 343         final var configurationStore = account.getConfigurationStore();
 344         if (configuration.readReceipts().isPresent()) {
 345             configurationStore.setReadReceipts(configuration.readReceipts().get());
 346         }
 347         if (configuration.unidentifiedDeliveryIndicators().isPresent()) {
 348             configurationStore.setUnidentifiedDeliveryIndicators(configuration.unidentifiedDeliveryIndicators().get());
 349         }
 350         if (configuration.typingIndicators().isPresent()) {
 351             configurationStore.setTypingIndicators(configuration.typingIndicators().get());
 352         }
 353         if (configuration.linkPreviews().isPresent()) {
 354             configurationStore.setLinkPreviews(configuration.linkPreviews().get());
 355         }
 356         syncHelper.sendConfigurationMessage();
 357     }
 358
 359     /**
 360      * @param givenName  if null, the previous givenName will be kept
 361      * @param familyName if null, the previous familyName will be kept
 362      * @param about      if null, the previous about text will be kept
 363      * @param aboutEmoji if null, the previous about emoji will be kept
 364      * @param avatar     if avatar is null the image from the local avatar store is used (if present),
 365      */
 366     @Override
 367     public void setProfile(
 368             String givenName, final String familyName, String about, String aboutEmoji, java.util.Optional<File> avatar
 369     ) throws IOException {
 370         profileHelper.setProfile(givenName,
 371                 familyName,
 372                 about,
 373                 aboutEmoji,
 374                 avatar == null ? null : Optional.fromNullable(avatar.orElse(null)));
 375         syncHelper.sendSyncFetchProfileMessage();
 376     }
 377
 378     @Override
 379     public void unregister() throws IOException {
 380         // When setting an empty GCM id, the Signal-Server also sets the fetchesMessages property to false.
 381         // If this is the master device, other users can't send messages to this number anymore.
 382         // If this is a linked device, other users can still send messages, but this device doesn't receive them anymore.
 383         dependencies.getAccountManager().setGcmId(Optional.absent());
 384
 385         account.setRegistered(false);
 386     }
 387
 388     @Override
 389     public void deleteAccount() throws IOException {
 390         try {
 391             pinHelper.removeRegistrationLockPin();
 392         } catch (IOException e) {
 393             logger.warn("Failed to remove registration lock pin");
 394         }
 395         account.setRegistrationLockPin(null, null);
 396
 397         dependencies.getAccountManager().deleteAccount();
 398
 399         account.setRegistered(false);
 400     }
 401
 402     @Override
 403     public void submitRateLimitRecaptchaChallenge(String challenge, String captcha) throws IOException {
 404         dependencies.getAccountManager().submitRateLimitRecaptchaChallenge(challenge, captcha);
 405     }
 406
 407     @Override
 408     public List<Device> getLinkedDevices() throws IOException {
 409         var devices = dependencies.getAccountManager().getDevices();
 410         account.setMultiDevice(devices.size() > 1);
 411         var identityKey = account.getIdentityKeyPair().getPrivateKey();
 412         return devices.stream().map(d -> {
 413             String deviceName = d.getName();
 414             if (deviceName != null) {
 415                 try {
 416                     deviceName = DeviceNameUtil.decryptDeviceName(deviceName, identityKey);
 417                 } catch (IOException e) {
 418                     logger.debug("Failed to decrypt device name, maybe plain text?", e);
 419                 }
 420             }
 421             return new Device(d.getId(),
 422                     deviceName,
 423                     d.getCreated(),
 424                     d.getLastSeen(),
 425                     d.getId() == account.getDeviceId());
 426         }).collect(Collectors.toList());
 427     }
 428
 429     @Override
 430     public void removeLinkedDevices(long deviceId) throws IOException {
 431         dependencies.getAccountManager().removeDevice(deviceId);
 432         var devices = dependencies.getAccountManager().getDevices();
 433         account.setMultiDevice(devices.size() > 1);
 434     }
 435
 436     @Override
 437     public void addDeviceLink(URI linkUri) throws IOException, InvalidDeviceLinkException {
 438         var info = DeviceLinkInfo.parseDeviceLinkUri(linkUri);
 439
 440         addDevice(info.deviceIdentifier(), info.deviceKey());
 441     }
 442
 443     private void addDevice(
 444             String deviceIdentifier, ECPublicKey deviceKey
 445     ) throws IOException, InvalidDeviceLinkException {
 446         var identityKeyPair = account.getIdentityKeyPair();
 447         var verificationCode = dependencies.getAccountManager().getNewDeviceVerificationCode();
 448
 449         try {
 450             dependencies.getAccountManager()
 451                     .addDevice(deviceIdentifier,
 452                             deviceKey,
 453                             identityKeyPair,
 454                             Optional.of(account.getProfileKey().serialize()),
 455                             verificationCode);
 456         } catch (InvalidKeyException e) {
 457             throw new InvalidDeviceLinkException("Invalid device link", e);
 458         }
 459         account.setMultiDevice(true);
 460     }
 461
 462     @Override
 463     public void setRegistrationLockPin(java.util.Optional<String> pin) throws IOException {
 464         if (!account.isMasterDevice()) {
 465             throw new RuntimeException("Only master device can set a PIN");
 466         }
 467         if (pin.isPresent()) {
 468             final var masterKey = account.getPinMasterKey() != null
 469                     ? account.getPinMasterKey()
 470                     : KeyUtils.createMasterKey();
 471
 472             pinHelper.setRegistrationLockPin(pin.get(), masterKey);
 473
 474             account.setRegistrationLockPin(pin.get(), masterKey);
 475         } else {
 476             // Remove KBS Pin
 477             pinHelper.removeRegistrationLockPin();
 478
 479             account.setRegistrationLockPin(null, null);
 480         }
 481     }
 482
 483     void refreshPreKeys() throws IOException {
 484         preKeyHelper.refreshPreKeys();
 485     }
 486
 487     @Override
 488     public Profile getRecipientProfile(RecipientIdentifier.Single recipient) throws IOException {
 489         return profileHelper.getRecipientProfile(resolveRecipient(recipient));
 490     }
 491
 492     private Profile getRecipientProfile(RecipientId recipientId) {
 493         return profileHelper.getRecipientProfile(recipientId);
 494     }
 495
 496     @Override
 497     public List<Group> getGroups() {
 498         return account.getGroupStore().getGroups().stream().map(this::toGroup).collect(Collectors.toList());
 499     }
 500
 501     private Group toGroup(final GroupInfo groupInfo) {
 502         if (groupInfo == null) {
 503             return null;
 504         }
 505
 506         return new Group(groupInfo.getGroupId(),
 507                 groupInfo.getTitle(),
 508                 groupInfo.getDescription(),
 509                 groupInfo.getGroupInviteLink(),
 510                 groupInfo.getMembers()
 511                         .stream()
 512                         .map(account.getRecipientStore()::resolveRecipientAddress)
 513                         .collect(Collectors.toSet()),
 514                 groupInfo.getPendingMembers()
 515                         .stream()
 516                         .map(account.getRecipientStore()::resolveRecipientAddress)
 517                         .collect(Collectors.toSet()),
 518                 groupInfo.getRequestingMembers()
 519                         .stream()
 520                         .map(account.getRecipientStore()::resolveRecipientAddress)
 521                         .collect(Collectors.toSet()),
 522                 groupInfo.getAdminMembers()
 523                         .stream()
 524                         .map(account.getRecipientStore()::resolveRecipientAddress)
 525                         .collect(Collectors.toSet()),
 526                 groupInfo.isBlocked(),
 527                 groupInfo.getMessageExpirationTimer(),
 528                 groupInfo.getPermissionAddMember(),
 529                 groupInfo.getPermissionEditDetails(),
 530                 groupInfo.getPermissionSendMessage(),
 531                 groupInfo.isMember(account.getSelfRecipientId()),
 532                 groupInfo.isAdmin(account.getSelfRecipientId()));
 533     }
 534
 535     @Override
 536     public SendGroupMessageResults quitGroup(
 537             GroupId groupId, Set<RecipientIdentifier.Single> groupAdmins
 538     ) throws GroupNotFoundException, IOException, NotAGroupMemberException, LastGroupAdminException {
 539         final var newAdmins = resolveRecipients(groupAdmins);
 540         return groupHelper.quitGroup(groupId, newAdmins);
 541     }
 542
 543     @Override
 544     public void deleteGroup(GroupId groupId) throws IOException {
 545         groupHelper.deleteGroup(groupId);
 546     }
 547
 548     @Override
 549     public Pair<GroupId, SendGroupMessageResults> createGroup(
 550             String name, Set<RecipientIdentifier.Single> members, File avatarFile
 551     ) throws IOException, AttachmentInvalidException {
 552         return groupHelper.createGroup(name, members == null ? null : resolveRecipients(members), avatarFile);
 553     }
 554
 555     @Override
 556     public SendGroupMessageResults updateGroup(
 557             final GroupId groupId, final UpdateGroup updateGroup
 558     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException, GroupSendingNotAllowedException {
 559         return groupHelper.updateGroup(groupId,
 560                 updateGroup.getName(),
 561                 updateGroup.getDescription(),
 562                 updateGroup.getMembers() == null ? null : resolveRecipients(updateGroup.getMembers()),
 563                 updateGroup.getRemoveMembers() == null ? null : resolveRecipients(updateGroup.getRemoveMembers()),
 564                 updateGroup.getAdmins() == null ? null : resolveRecipients(updateGroup.getAdmins()),
 565                 updateGroup.getRemoveAdmins() == null ? null : resolveRecipients(updateGroup.getRemoveAdmins()),
 566                 updateGroup.isResetGroupLink(),
 567                 updateGroup.getGroupLinkState(),
 568                 updateGroup.getAddMemberPermission(),
 569                 updateGroup.getEditDetailsPermission(),
 570                 updateGroup.getAvatarFile(),
 571                 updateGroup.getExpirationTimer(),
 572                 updateGroup.getIsAnnouncementGroup());
 573     }
 574
 575     @Override
 576     public Pair<GroupId, SendGroupMessageResults> joinGroup(
 577             GroupInviteLinkUrl inviteLinkUrl
 578     ) throws IOException, InactiveGroupLinkException {
 579         return groupHelper.joinGroup(inviteLinkUrl);
 580     }
 581
 582     private SendMessageResults sendMessage(
 583             SignalServiceDataMessage.Builder messageBuilder, Set<RecipientIdentifier> recipients
 584     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException {
 585         var results = new HashMap<RecipientIdentifier, List<SendMessageResult>>();
 586         long timestamp = System.currentTimeMillis();
 587         messageBuilder.withTimestamp(timestamp);
 588         for (final var recipient : recipients) {
 589             if (recipient instanceof RecipientIdentifier.Single single) {
 590                 final var recipientId = resolveRecipient(single);
 591                 final var result = sendHelper.sendMessage(messageBuilder, recipientId);
 592                 results.put(recipient,
 593                         List.of(SendMessageResult.from(result,
 594                                 account.getRecipientStore(),
 595                                 account.getRecipientStore()::resolveRecipientAddress)));
 596             } else if (recipient instanceof RecipientIdentifier.NoteToSelf) {
 597                 final var result = sendHelper.sendSelfMessage(messageBuilder);
 598                 results.put(recipient,
 599                         List.of(SendMessageResult.from(result,
 600                                 account.getRecipientStore(),
 601                                 account.getRecipientStore()::resolveRecipientAddress)));
 602             } else if (recipient instanceof RecipientIdentifier.Group group) {
 603                 final var result = sendHelper.sendAsGroupMessage(messageBuilder, group.groupId());
 604                 results.put(recipient,
 605                         result.stream()
 606                                 .map(sendMessageResult -> SendMessageResult.from(sendMessageResult,
 607                                         account.getRecipientStore(),
 608                                         account.getRecipientStore()::resolveRecipientAddress))
 609                                 .collect(Collectors.toList()));
 610             }
 611         }
 612         return new SendMessageResults(timestamp, results);
 613     }
 614
 615     private void sendTypingMessage(
 616             SignalServiceTypingMessage.Action action, Set<RecipientIdentifier> recipients
 617     ) throws IOException, UntrustedIdentityException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException {
 618         final var timestamp = System.currentTimeMillis();
 619         for (var recipient : recipients) {
 620             if (recipient instanceof RecipientIdentifier.Single) {
 621                 final var message = new SignalServiceTypingMessage(action, timestamp, Optional.absent());
 622                 final var recipientId = resolveRecipient((RecipientIdentifier.Single) recipient);
 623                 sendHelper.sendTypingMessage(message, recipientId);
 624             } else if (recipient instanceof RecipientIdentifier.Group) {
 625                 final var groupId = ((RecipientIdentifier.Group) recipient).groupId();
 626                 final var message = new SignalServiceTypingMessage(action, timestamp, Optional.of(groupId.serialize()));
 627                 sendHelper.sendGroupTypingMessage(message, groupId);
 628             }
 629         }
 630     }
 631
 632     @Override
 633     public void sendTypingMessage(
 634             TypingAction action, Set<RecipientIdentifier> recipients
 635     ) throws IOException, UntrustedIdentityException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException {
 636         sendTypingMessage(action.toSignalService(), recipients);
 637     }
 638
 639     @Override
 640     public void sendReadReceipt(
 641             RecipientIdentifier.Single sender, List<Long> messageIds
 642     ) throws IOException, UntrustedIdentityException {
 643         var receiptMessage = new SignalServiceReceiptMessage(SignalServiceReceiptMessage.Type.READ,
 644                 messageIds,
 645                 System.currentTimeMillis());
 646
 647         sendHelper.sendReceiptMessage(receiptMessage, resolveRecipient(sender));
 648     }
 649
 650     @Override
 651     public void sendViewedReceipt(
 652             RecipientIdentifier.Single sender, List<Long> messageIds
 653     ) throws IOException, UntrustedIdentityException {
 654         var receiptMessage = new SignalServiceReceiptMessage(SignalServiceReceiptMessage.Type.VIEWED,
 655                 messageIds,
 656                 System.currentTimeMillis());
 657
 658         sendHelper.sendReceiptMessage(receiptMessage, resolveRecipient(sender));
 659     }
 660
 661     @Override
 662     public SendMessageResults sendMessage(
 663             Message message, Set<RecipientIdentifier> recipients
 664     ) throws IOException, AttachmentInvalidException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException {
 665         final var messageBuilder = SignalServiceDataMessage.newBuilder();
 666         applyMessage(messageBuilder, message);
 667         return sendMessage(messageBuilder, recipients);
 668     }
 669
 670     private void applyMessage(
 671             final SignalServiceDataMessage.Builder messageBuilder, final Message message
 672     ) throws AttachmentInvalidException, IOException {
 673         messageBuilder.withBody(message.messageText());
 674         final var attachments = message.attachments();
 675         if (attachments != null) {
 676             messageBuilder.withAttachments(attachmentHelper.uploadAttachments(attachments));
 677         }
 678     }
 679
 680     @Override
 681     public SendMessageResults sendRemoteDeleteMessage(
 682             long targetSentTimestamp, Set<RecipientIdentifier> recipients
 683     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException {
 684         var delete = new SignalServiceDataMessage.RemoteDelete(targetSentTimestamp);
 685         final var messageBuilder = SignalServiceDataMessage.newBuilder().withRemoteDelete(delete);
 686         return sendMessage(messageBuilder, recipients);
 687     }
 688
 689     @Override
 690     public SendMessageResults sendMessageReaction(
 691             String emoji,
 692             boolean remove,
 693             RecipientIdentifier.Single targetAuthor,
 694             long targetSentTimestamp,
 695             Set<RecipientIdentifier> recipients
 696     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException {
 697         var targetAuthorRecipientId = resolveRecipient(targetAuthor);
 698         var reaction = new SignalServiceDataMessage.Reaction(emoji,
 699                 remove,
 700                 resolveSignalServiceAddress(targetAuthorRecipientId),
 701                 targetSentTimestamp);
 702         final var messageBuilder = SignalServiceDataMessage.newBuilder().withReaction(reaction);
 703         return sendMessage(messageBuilder, recipients);
 704     }
 705
 706     @Override
 707     public SendMessageResults sendEndSessionMessage(Set<RecipientIdentifier.Single> recipients) throws IOException {
 708         var messageBuilder = SignalServiceDataMessage.newBuilder().asEndSessionMessage();
 709
 710         try {
 711             return sendMessage(messageBuilder,
 712                     recipients.stream().map(RecipientIdentifier.class::cast).collect(Collectors.toSet()));
 713         } catch (GroupNotFoundException | NotAGroupMemberException | GroupSendingNotAllowedException e) {
 714             throw new AssertionError(e);
 715         } finally {
 716             for (var recipient : recipients) {
 717                 final var recipientId = resolveRecipient(recipient);
 718                 account.getSessionStore().deleteAllSessions(recipientId);
 719             }
 720         }
 721     }
 722
 723     @Override
 724     public void setContactName(
 725             RecipientIdentifier.Single recipient, String name
 726     ) throws NotMasterDeviceException, IOException {
 727         if (!account.isMasterDevice()) {
 728             throw new NotMasterDeviceException();
 729         }
 730         contactHelper.setContactName(resolveRecipient(recipient), name);
 731     }
 732
 733     @Override
 734     public void setContactBlocked(
 735             RecipientIdentifier.Single recipient, boolean blocked
 736     ) throws NotMasterDeviceException, IOException {
 737         if (!account.isMasterDevice()) {
 738             throw new NotMasterDeviceException();
 739         }
 740         contactHelper.setContactBlocked(resolveRecipient(recipient), blocked);
 741         // TODO cycle our profile key
 742         syncHelper.sendBlockedList();
 743     }
 744
 745     @Override
 746     public void setGroupBlocked(
 747             final GroupId groupId, final boolean blocked
 748     ) throws GroupNotFoundException, IOException, NotMasterDeviceException {
 749         if (!account.isMasterDevice()) {
 750             throw new NotMasterDeviceException();
 751         }
 752         groupHelper.setGroupBlocked(groupId, blocked);
 753         // TODO cycle our profile key
 754         syncHelper.sendBlockedList();
 755     }
 756
 757     /**
 758      * Change the expiration timer for a contact
 759      */
 760     @Override
 761     public void setExpirationTimer(
 762             RecipientIdentifier.Single recipient, int messageExpirationTimer
 763     ) throws IOException {
 764         var recipientId = resolveRecipient(recipient);
 765         contactHelper.setExpirationTimer(recipientId, messageExpirationTimer);
 766         final var messageBuilder = SignalServiceDataMessage.newBuilder().asExpirationUpdate();
 767         try {
 768             sendMessage(messageBuilder, Set.of(recipient));
 769         } catch (NotAGroupMemberException | GroupNotFoundException | GroupSendingNotAllowedException e) {
 770             throw new AssertionError(e);
 771         }
 772     }
 773
 774     /**
 775      * Upload the sticker pack from path.
 776      *
 777      * @param path Path can be a path to a manifest.json file or to a zip file that contains a manifest.json file
 778      * @return if successful, returns the URL to install the sticker pack in the signal app
 779      */
 780     @Override
 781     public URI uploadStickerPack(File path) throws IOException, StickerPackInvalidException {
 782         var manifest = StickerUtils.getSignalServiceStickerManifestUpload(path);
 783
 784         var messageSender = dependencies.getMessageSender();
 785
 786         var packKey = KeyUtils.createStickerUploadKey();
 787         var packIdString = messageSender.uploadStickerManifest(manifest, packKey);
 788         var packId = StickerPackId.deserialize(Hex.fromStringCondensed(packIdString));
 789
 790         var sticker = new Sticker(packId, packKey);
 791         account.getStickerStore().updateSticker(sticker);
 792
 793         try {
 794             return new URI("https",
 795                     "signal.art",
 796                     "/addstickers/",
 797                     "pack_id="
 798                             + URLEncoder.encode(Hex.toStringCondensed(packId.serialize()), StandardCharsets.UTF_8)
 799                             + "&pack_key="
 800                             + URLEncoder.encode(Hex.toStringCondensed(packKey), StandardCharsets.UTF_8));
 801         } catch (URISyntaxException e) {
 802             throw new AssertionError(e);
 803         }
 804     }
 805
 806     @Override
 807     public void requestAllSyncData() throws IOException {
 808         syncHelper.requestAllSyncData();
 809         retrieveRemoteStorage();
 810     }
 811
 812     void retrieveRemoteStorage() throws IOException {
 813         if (account.getStorageKey() != null) {
 814             storageHelper.readDataFromStorage();
 815         }
 816     }
 817
 818     private RecipientId refreshRegisteredUser(RecipientId recipientId) throws IOException {
 819         final var address = resolveSignalServiceAddress(recipientId);
 820         if (!address.getNumber().isPresent()) {
 821             return recipientId;
 822         }
 823         final var number = address.getNumber().get();
 824         final var uuid = getRegisteredUser(number);
 825         return resolveRecipientTrusted(new SignalServiceAddress(uuid, number));
 826     }
 827
 828     private ACI getRegisteredUser(final String number) throws IOException {
 829         final Map<String, ACI> aciMap;
 830         try {
 831             aciMap = getRegisteredUsers(Set.of(number));
 832         } catch (NumberFormatException e) {
 833             throw new IOException(number, e);
 834         }
 835         final var uuid = aciMap.get(number);
 836         if (uuid == null) {
 837             throw new IOException(number, null);
 838         }
 839         return uuid;
 840     }
 841
 842     private Map<String, ACI> getRegisteredUsers(final Set<String> numbers) throws IOException {
 843         final Map<String, ACI> registeredUsers;
 844         try {
 845             registeredUsers = dependencies.getAccountManager()
 846                     .getRegisteredUsers(ServiceConfig.getIasKeyStore(),
 847                             numbers,
 848                             serviceEnvironmentConfig.getCdsMrenclave());
 849         } catch (Quote.InvalidQuoteFormatException | UnauthenticatedQuoteException | SignatureException | UnauthenticatedResponseException | InvalidKeyException e) {
 850             throw new IOException(e);
 851         }
 852
 853         // Store numbers as recipients, so we have the number/uuid association
 854         registeredUsers.forEach((number, aci) -> resolveRecipientTrusted(new SignalServiceAddress(aci, number)));
 855
 856         return registeredUsers;
 857     }
 858
 859     private void retryFailedReceivedMessages(ReceiveMessageHandler handler) {
 860         Set<HandleAction> queuedActions = new HashSet<>();
 861         for (var cachedMessage : account.getMessageCache().getCachedMessages()) {
 862             var actions = retryFailedReceivedMessage(handler, cachedMessage);
 863             if (actions != null) {
 864                 queuedActions.addAll(actions);
 865             }
 866         }
 867         handleQueuedActions(queuedActions);
 868     }
 869
 870     private List<HandleAction> retryFailedReceivedMessage(
 871             final ReceiveMessageHandler handler, final CachedMessage cachedMessage
 872     ) {
 873         var envelope = cachedMessage.loadEnvelope();
 874         if (envelope == null) {
 875             cachedMessage.delete();
 876             return null;
 877         }
 878
 879         final var result = incomingMessageHandler.handleRetryEnvelope(envelope, ignoreAttachments, handler);
 880         final var actions = result.first();
 881         final var exception = result.second();
 882
 883         if (exception instanceof UntrustedIdentityException) {
 884             if (System.currentTimeMillis() - envelope.getServerDeliveredTimestamp() > 1000L * 60 * 60 * 24 * 30) {
 885                 // Envelope is more than a month old, cleaning up.
 886                 cachedMessage.delete();
 887                 return null;
 888             }
 889             if (!envelope.hasSourceUuid()) {
 890                 final var identifier = ((UntrustedIdentityException) exception).getSender();
 891                 final var recipientId = account.getRecipientStore().resolveRecipient(identifier);
 892                 try {
 893                     account.getMessageCache().replaceSender(cachedMessage, recipientId);
 894                 } catch (IOException ioException) {
 895                     logger.warn("Failed to move cached message to recipient folder: {}", ioException.getMessage());
 896                 }
 897             }
 898             return null;
 899         }
 900
 901         // If successful and for all other errors that are not recoverable, delete the cached message
 902         cachedMessage.delete();
 903         return actions;
 904     }
 905
 906     @Override
 907     public void addReceiveHandler(final ReceiveMessageHandler handler) {
 908         if (isReceivingSynchronous) {
 909             throw new IllegalStateException("Already receiving message synchronously.");
 910         }
 911         synchronized (messageHandlers) {
 912             messageHandlers.add(handler);
 913
 914             startReceiveThreadIfRequired();
 915         }
 916     }
 917
 918     private void startReceiveThreadIfRequired() {
 919         if (receiveThread != null) {
 920             return;
 921         }
 922         receiveThread = new Thread(() -> {
 923             while (!Thread.interrupted()) {
 924                 try {
 925                     receiveMessagesInternal(1L, TimeUnit.HOURS, false, (envelope, e) -> {
 926                         synchronized (messageHandlers) {
 927                             for (ReceiveMessageHandler h : messageHandlers) {
 928                                 try {
 929                                     h.handleMessage(envelope, e);
 930                                 } catch (Exception ex) {
 931                                     logger.warn("Message handler failed, ignoring", ex);
 932                                 }
 933                             }
 934                         }
 935                     });
 936                     break;
 937                 } catch (IOException e) {
 938                     logger.warn("Receiving messages failed, retrying", e);
 939                 }
 940             }
 941             hasCaughtUpWithOldMessages = false;
 942             synchronized (messageHandlers) {
 943                 receiveThread = null;
 944
 945                 // Check if in the meantime another handler has been registered
 946                 if (!messageHandlers.isEmpty()) {
 947                     startReceiveThreadIfRequired();
 948                 }
 949             }
 950         });
 951
 952         receiveThread.start();
 953     }
 954
 955     @Override
 956     public void removeReceiveHandler(final ReceiveMessageHandler handler) {
 957         final Thread thread;
 958         synchronized (messageHandlers) {
 959             messageHandlers.remove(handler);
 960             if (!messageHandlers.isEmpty() || isReceivingSynchronous) {
 961                 return;
 962             }
 963             thread = receiveThread;
 964             receiveThread = null;
 965         }
 966
 967         stopReceiveThread(thread);
 968     }
 969
 970     private void stopReceiveThread(final Thread thread) {
 971         thread.interrupt();
 972         try {
 973             thread.join();
 974         } catch (InterruptedException ignored) {
 975         }
 976     }
 977
 978     @Override
 979     public boolean isReceiving() {
 980         if (isReceivingSynchronous) {
 981             return true;
 982         }
 983         synchronized (messageHandlers) {
 984             return messageHandlers.size() > 0;
 985         }
 986     }
 987
 988     @Override
 989     public void receiveMessages(long timeout, TimeUnit unit, ReceiveMessageHandler handler) throws IOException {
 990         receiveMessages(timeout, unit, true, handler);
 991     }
 992
 993     @Override
 994     public void receiveMessages(ReceiveMessageHandler handler) throws IOException {
 995         receiveMessages(1L, TimeUnit.HOURS, false, handler);
 996     }
 997
 998     private void receiveMessages(
 999             long timeout, TimeUnit unit, boolean returnOnTimeout, ReceiveMessageHandler handler
1000     ) throws IOException {
1001         if (isReceiving()) {
1002             throw new IllegalStateException("Already receiving message.");
1003         }
1004         isReceivingSynchronous = true;
1005         receiveThread = Thread.currentThread();
1006         try {
1007             receiveMessagesInternal(timeout, unit, returnOnTimeout, handler);
1008         } finally {
1009             receiveThread = null;
1010             hasCaughtUpWithOldMessages = false;
1011             isReceivingSynchronous = false;
1012         }
1013     }
1014
1015     private void receiveMessagesInternal(
1016             long timeout, TimeUnit unit, boolean returnOnTimeout, ReceiveMessageHandler handler
1017     ) throws IOException {
1018         retryFailedReceivedMessages(handler);
1019
1020         Set<HandleAction> queuedActions = new HashSet<>();
1021
1022         final var signalWebSocket = dependencies.getSignalWebSocket();
1023         signalWebSocket.connect();
1024
1025         hasCaughtUpWithOldMessages = false;
1026         var backOffCounter = 0;
1027         final var MAX_BACKOFF_COUNTER = 9;
1028
1029         while (!Thread.interrupted()) {
1030             SignalServiceEnvelope envelope;
1031             final CachedMessage[] cachedMessage = {null};
1032             account.setLastReceiveTimestamp(System.currentTimeMillis());
1033             logger.debug("Checking for new message from server");
1034             try {
1035                 var result = signalWebSocket.readOrEmpty(unit.toMillis(timeout), envelope1 -> {
1036                     final var recipientId = envelope1.hasSourceUuid()
1037                             ? resolveRecipient(envelope1.getSourceAddress())
1038                             : null;
1039                     // store message on disk, before acknowledging receipt to the server
1040                     cachedMessage[0] = account.getMessageCache().cacheMessage(envelope1, recipientId);
1041                 });
1042                 backOffCounter = 0;
1043
1044                 if (result.isPresent()) {
1045                     envelope = result.get();
1046                     logger.debug("New message received from server");
1047                 } else {
1048                     logger.debug("Received indicator that server queue is empty");
1049                     handleQueuedActions(queuedActions);
1050                     queuedActions.clear();
1051
1052                     hasCaughtUpWithOldMessages = true;
1053                     synchronized (this) {
1054                         this.notifyAll();
1055                     }
1056
1057                     // Continue to wait another timeout for new messages
1058                     continue;
1059                 }
1060             } catch (AssertionError e) {
1061                 if (e.getCause() instanceof InterruptedException) {
1062                     Thread.currentThread().interrupt();
1063                     break;
1064                 } else {
1065                     throw e;
1066                 }
1067             } catch (IOException e) {
1068                 logger.debug("Pipe unexpectedly unavailable: {}", e.getMessage());
1069                 if (e instanceof WebSocketUnavailableException || "Connection closed!".equals(e.getMessage())) {
1070                     final var sleepMilliseconds = 100 * (long) Math.pow(2, backOffCounter);
1071                     backOffCounter = Math.min(backOffCounter + 1, MAX_BACKOFF_COUNTER);
1072                     logger.warn("Connection closed unexpectedly, reconnecting in {} ms", sleepMilliseconds);
1073                     try {
1074                         Thread.sleep(sleepMilliseconds);
1075                     } catch (InterruptedException interruptedException) {
1076                         return;
1077                     }
1078                     hasCaughtUpWithOldMessages = false;
1079                     signalWebSocket.connect();
1080                     continue;
1081                 }
1082                 throw e;
1083             } catch (TimeoutException e) {
1084                 backOffCounter = 0;
1085                 if (returnOnTimeout) return;
1086                 continue;
1087             }
1088
1089             final var result = incomingMessageHandler.handleEnvelope(envelope, ignoreAttachments, handler);
1090             queuedActions.addAll(result.first());
1091             final var exception = result.second();
1092
1093             if (hasCaughtUpWithOldMessages) {
1094                 handleQueuedActions(queuedActions);
1095                 queuedActions.clear();
1096             }
1097             if (cachedMessage[0] != null) {
1098                 if (exception instanceof UntrustedIdentityException) {
1099                     logger.debug("Keeping message with untrusted identity in message cache");
1100                     final var address = ((UntrustedIdentityException) exception).getSender();
1101                     final var recipientId = resolveRecipient(address);
1102                     if (!envelope.hasSourceUuid()) {
1103                         try {
1104                             cachedMessage[0] = account.getMessageCache().replaceSender(cachedMessage[0], recipientId);
1105                         } catch (IOException ioException) {
1106                             logger.warn("Failed to move cached message to recipient folder: {}",
1107                                     ioException.getMessage());
1108                         }
1109                     }
1110                 } else {
1111                     cachedMessage[0].delete();
1112                 }
1113             }
1114         }
1115         handleQueuedActions(queuedActions);
1116         queuedActions.clear();
1117     }
1118
1119     @Override
1120     public void setIgnoreAttachments(final boolean ignoreAttachments) {
1121         this.ignoreAttachments = ignoreAttachments;
1122     }
1123
1124     @Override
1125     public boolean hasCaughtUpWithOldMessages() {
1126         return hasCaughtUpWithOldMessages;
1127     }
1128
1129     private void handleQueuedActions(final Collection<HandleAction> queuedActions) {
1130         logger.debug("Handling message actions");
1131         var interrupted = false;
1132         for (var action : queuedActions) {
1133             try {
1134                 action.execute(context);
1135             } catch (Throwable e) {
1136                 if ((e instanceof AssertionError || e instanceof RuntimeException)
1137                         && e.getCause() instanceof InterruptedException) {
1138                     interrupted = true;
1139                     continue;
1140                 }
1141                 logger.warn("Message action failed.", e);
1142             }
1143         }
1144         if (interrupted) {
1145             Thread.currentThread().interrupt();
1146         }
1147     }
1148
1149     @Override
1150     public boolean isContactBlocked(final RecipientIdentifier.Single recipient) {
1151         final RecipientId recipientId;
1152         try {
1153             recipientId = resolveRecipient(recipient);
1154         } catch (IOException e) {
1155             return false;
1156         }
1157         return contactHelper.isContactBlocked(recipientId);
1158     }
1159
1160     @Override
1161     public void sendContacts() throws IOException {
1162         syncHelper.sendContacts();
1163     }
1164
1165     @Override
1166     public List<Pair<RecipientAddress, Contact>> getContacts() {
1167         return account.getContactStore()
1168                 .getContacts()
1169                 .stream()
1170                 .map(p -> new Pair<>(account.getRecipientStore().resolveRecipientAddress(p.first()), p.second()))
1171                 .collect(Collectors.toList());
1172     }
1173
1174     @Override
1175     public String getContactOrProfileName(RecipientIdentifier.Single recipient) {
1176         final RecipientId recipientId;
1177         try {
1178             recipientId = resolveRecipient(recipient);
1179         } catch (IOException e) {
1180             return null;
1181         }
1182
1183         final var contact = account.getContactStore().getContact(recipientId);
1184         if (contact != null && !Util.isEmpty(contact.getName())) {
1185             return contact.getName();
1186         }
1187
1188         final var profile = getRecipientProfile(recipientId);
1189         if (profile != null) {
1190             return profile.getDisplayName();
1191         }
1192
1193         return null;
1194     }
1195
1196     @Override
1197     public Group getGroup(GroupId groupId) {
1198         return toGroup(groupHelper.getGroup(groupId));
1199     }
1200
1201     private GroupInfo getGroupInfo(GroupId groupId) {
1202         return groupHelper.getGroup(groupId);
1203     }
1204
1205     @Override
1206     public List<Identity> getIdentities() {
1207         return account.getIdentityKeyStore()
1208                 .getIdentities()
1209                 .stream()
1210                 .map(this::toIdentity)
1211                 .collect(Collectors.toList());
1212     }
1213
1214     private Identity toIdentity(final IdentityInfo identityInfo) {
1215         if (identityInfo == null) {
1216             return null;
1217         }
1218
1219         final var address = account.getRecipientStore().resolveRecipientAddress(identityInfo.getRecipientId());
1220         final var scannableFingerprint = identityHelper.computeSafetyNumberForScanning(identityInfo.getRecipientId(),
1221                 identityInfo.getIdentityKey());
1222         return new Identity(address,
1223                 identityInfo.getIdentityKey(),
1224                 identityHelper.computeSafetyNumber(identityInfo.getRecipientId(), identityInfo.getIdentityKey()),
1225                 scannableFingerprint == null ? null : scannableFingerprint.getSerialized(),
1226                 identityInfo.getTrustLevel(),
1227                 identityInfo.getDateAdded());
1228     }
1229
1230     @Override
1231     public List<Identity> getIdentities(RecipientIdentifier.Single recipient) {
1232         IdentityInfo identity;
1233         try {
1234             identity = account.getIdentityKeyStore().getIdentity(resolveRecipient(recipient));
1235         } catch (IOException e) {
1236             identity = null;
1237         }
1238         return identity == null ? List.of() : List.of(toIdentity(identity));
1239     }
1240
1241     /**
1242      * Trust this the identity with this fingerprint
1243      *
1244      * @param recipient   username of the identity
1245      * @param fingerprint Fingerprint
1246      */
1247     @Override
1248     public boolean trustIdentityVerified(RecipientIdentifier.Single recipient, byte[] fingerprint) {
1249         RecipientId recipientId;
1250         try {
1251             recipientId = resolveRecipient(recipient);
1252         } catch (IOException e) {
1253             return false;
1254         }
1255         return identityHelper.trustIdentityVerified(recipientId, fingerprint);
1256     }
1257
1258     /**
1259      * Trust this the identity with this safety number
1260      *
1261      * @param recipient    username of the identity
1262      * @param safetyNumber Safety number
1263      */
1264     @Override
1265     public boolean trustIdentityVerifiedSafetyNumber(RecipientIdentifier.Single recipient, String safetyNumber) {
1266         RecipientId recipientId;
1267         try {
1268             recipientId = resolveRecipient(recipient);
1269         } catch (IOException e) {
1270             return false;
1271         }
1272         return identityHelper.trustIdentityVerifiedSafetyNumber(recipientId, safetyNumber);
1273     }
1274
1275     /**
1276      * Trust this the identity with this scannable safety number
1277      *
1278      * @param recipient    username of the identity
1279      * @param safetyNumber Scannable safety number
1280      */
1281     @Override
1282     public boolean trustIdentityVerifiedSafetyNumber(RecipientIdentifier.Single recipient, byte[] safetyNumber) {
1283         RecipientId recipientId;
1284         try {
1285             recipientId = resolveRecipient(recipient);
1286         } catch (IOException e) {
1287             return false;
1288         }
1289         return identityHelper.trustIdentityVerifiedSafetyNumber(recipientId, safetyNumber);
1290     }
1291
1292     /**
1293      * Trust all keys of this identity without verification
1294      *
1295      * @param recipient username of the identity
1296      */
1297     @Override
1298     public boolean trustIdentityAllKeys(RecipientIdentifier.Single recipient) {
1299         RecipientId recipientId;
1300         try {
1301             recipientId = resolveRecipient(recipient);
1302         } catch (IOException e) {
1303             return false;
1304         }
1305         return identityHelper.trustIdentityAllKeys(recipientId);
1306     }
1307
1308     private void handleIdentityFailure(
1309             final RecipientId recipientId,
1310             final org.whispersystems.signalservice.api.messages.SendMessageResult.IdentityFailure identityFailure
1311     ) {
1312         this.identityHelper.handleIdentityFailure(recipientId, identityFailure);
1313     }
1314
1315     private SignalServiceAddress resolveSignalServiceAddress(RecipientId recipientId) {
1316         final var address = account.getRecipientStore().resolveRecipientAddress(recipientId);
1317         if (address.getUuid().isPresent()) {
1318             return address.toSignalServiceAddress();
1319         }
1320
1321         // Address in recipient store doesn't have a uuid, this shouldn't happen
1322         // Try to retrieve the uuid from the server
1323         final var number = address.getNumber().get();
1324         final ACI aci;
1325         try {
1326             aci = getRegisteredUser(number);
1327         } catch (IOException e) {
1328             logger.warn("Failed to get uuid for e164 number: {}", number, e);
1329             // Return SignalServiceAddress with unknown UUID
1330             return address.toSignalServiceAddress();
1331         }
1332         return resolveSignalServiceAddress(account.getRecipientStore().resolveRecipient(aci));
1333     }
1334
1335     private Set<RecipientId> resolveRecipients(Collection<RecipientIdentifier.Single> recipients) throws IOException {
1336         final var recipientIds = new HashSet<RecipientId>(recipients.size());
1337         for (var number : recipients) {
1338             final var recipientId = resolveRecipient(number);
1339             recipientIds.add(recipientId);
1340         }
1341         return recipientIds;
1342     }
1343
1344     private RecipientId resolveRecipient(final RecipientIdentifier.Single recipient) throws IOException {
1345         if (recipient instanceof RecipientIdentifier.Uuid uuidRecipient) {
1346             return account.getRecipientStore().resolveRecipient(ACI.from(uuidRecipient.uuid()));
1347         } else {
1348             final var number = ((RecipientIdentifier.Number) recipient).number();
1349             return account.getRecipientStore().resolveRecipient(number, () -> {
1350                 try {
1351                     return getRegisteredUser(number);
1352                 } catch (IOException e) {
1353                     return null;
1354                 }
1355             });
1356         }
1357     }
1358
1359     private RecipientId resolveRecipient(RecipientAddress address) {
1360         return account.getRecipientStore().resolveRecipient(address);
1361     }
1362
1363     private RecipientId resolveRecipient(SignalServiceAddress address) {
1364         return account.getRecipientStore().resolveRecipient(address);
1365     }
1366
1367     private RecipientId resolveRecipientTrusted(SignalServiceAddress address) {
1368         return account.getRecipientStore().resolveRecipientTrusted(address);
1369     }
1370
1371     @Override
1372     public void close() throws IOException {
1373         close(true);
1374     }
1375
1376     private void close(boolean closeAccount) throws IOException {
1377         Thread thread;
1378         synchronized (messageHandlers) {
1379             messageHandlers.clear();
1380             thread = receiveThread;
1381             receiveThread = null;
1382         }
1383         if (thread != null) {
1384             stopReceiveThread(thread);
1385         }
1386         executor.shutdown();
1387
1388         dependencies.getSignalWebSocket().disconnect();
1389
1390         if (closeAccount && account != null) {
1391             account.close();
1392         }
1393         account = null;
1394     }
1395 }