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