nmode's Git Repositories - signal-cli/blob - lib/src/main/java/org/asamk/signal/manager/Manager.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.api.Device;
  20 import org.asamk.signal.manager.api.TypingAction;
  21 import org.asamk.signal.manager.config.ServiceConfig;
  22 import org.asamk.signal.manager.config.ServiceEnvironment;
  23 import org.asamk.signal.manager.config.ServiceEnvironmentConfig;
  24 import org.asamk.signal.manager.groups.GroupId;
  25 import org.asamk.signal.manager.groups.GroupIdV1;
  26 import org.asamk.signal.manager.groups.GroupInviteLinkUrl;
  27 import org.asamk.signal.manager.groups.GroupLinkState;
  28 import org.asamk.signal.manager.groups.GroupNotFoundException;
  29 import org.asamk.signal.manager.groups.GroupPermission;
  30 import org.asamk.signal.manager.groups.GroupUtils;
  31 import org.asamk.signal.manager.groups.LastGroupAdminException;
  32 import org.asamk.signal.manager.groups.NotAGroupMemberException;
  33 import org.asamk.signal.manager.helper.GroupV2Helper;
  34 import org.asamk.signal.manager.helper.PinHelper;
  35 import org.asamk.signal.manager.helper.ProfileHelper;
  36 import org.asamk.signal.manager.helper.SendHelper;
  37 import org.asamk.signal.manager.helper.UnidentifiedAccessHelper;
  38 import org.asamk.signal.manager.jobs.Context;
  39 import org.asamk.signal.manager.jobs.Job;
  40 import org.asamk.signal.manager.jobs.RetrieveStickerPackJob;
  41 import org.asamk.signal.manager.storage.SignalAccount;
  42 import org.asamk.signal.manager.storage.groups.GroupInfo;
  43 import org.asamk.signal.manager.storage.groups.GroupInfoV1;
  44 import org.asamk.signal.manager.storage.groups.GroupInfoV2;
  45 import org.asamk.signal.manager.storage.identities.IdentityInfo;
  46 import org.asamk.signal.manager.storage.identities.TrustNewIdentity;
  47 import org.asamk.signal.manager.storage.messageCache.CachedMessage;
  48 import org.asamk.signal.manager.storage.recipients.Contact;
  49 import org.asamk.signal.manager.storage.recipients.Profile;
  50 import org.asamk.signal.manager.storage.recipients.RecipientId;
  51 import org.asamk.signal.manager.storage.stickers.Sticker;
  52 import org.asamk.signal.manager.storage.stickers.StickerPackId;
  53 import org.asamk.signal.manager.util.AttachmentUtils;
  54 import org.asamk.signal.manager.util.IOUtils;
  55 import org.asamk.signal.manager.util.KeyUtils;
  56 import org.asamk.signal.manager.util.ProfileUtils;
  57 import org.asamk.signal.manager.util.StickerUtils;
  58 import org.asamk.signal.manager.util.Utils;
  59 import org.signal.libsignal.metadata.InvalidMetadataMessageException;
  60 import org.signal.libsignal.metadata.InvalidMetadataVersionException;
  61 import org.signal.libsignal.metadata.ProtocolDuplicateMessageException;
  62 import org.signal.libsignal.metadata.ProtocolInvalidKeyException;
  63 import org.signal.libsignal.metadata.ProtocolInvalidKeyIdException;
  64 import org.signal.libsignal.metadata.ProtocolInvalidMessageException;
  65 import org.signal.libsignal.metadata.ProtocolInvalidVersionException;
  66 import org.signal.libsignal.metadata.ProtocolLegacyMessageException;
  67 import org.signal.libsignal.metadata.ProtocolNoSessionException;
  68 import org.signal.libsignal.metadata.ProtocolUntrustedIdentityException;
  69 import org.signal.libsignal.metadata.SelfSendException;
  70 import org.signal.storageservice.protos.groups.GroupChange;
  71 import org.signal.storageservice.protos.groups.local.DecryptedGroup;
  72 import org.signal.zkgroup.InvalidInputException;
  73 import org.signal.zkgroup.VerificationFailedException;
  74 import org.signal.zkgroup.groups.GroupMasterKey;
  75 import org.signal.zkgroup.groups.GroupSecretParams;
  76 import org.signal.zkgroup.profiles.ProfileKey;
  77 import org.signal.zkgroup.profiles.ProfileKeyCredential;
  78 import org.slf4j.Logger;
  79 import org.slf4j.LoggerFactory;
  80 import org.whispersystems.libsignal.IdentityKey;
  81 import org.whispersystems.libsignal.IdentityKeyPair;
  82 import org.whispersystems.libsignal.InvalidKeyException;
  83 import org.whispersystems.libsignal.InvalidMessageException;
  84 import org.whispersystems.libsignal.ecc.ECPublicKey;
  85 import org.whispersystems.libsignal.fingerprint.Fingerprint;
  86 import org.whispersystems.libsignal.fingerprint.FingerprintParsingException;
  87 import org.whispersystems.libsignal.fingerprint.FingerprintVersionMismatchException;
  88 import org.whispersystems.libsignal.state.PreKeyRecord;
  89 import org.whispersystems.libsignal.state.SignedPreKeyRecord;
  90 import org.whispersystems.libsignal.util.Pair;
  91 import org.whispersystems.libsignal.util.guava.Optional;
  92 import org.whispersystems.signalservice.api.InvalidMessageStructureException;
  93 import org.whispersystems.signalservice.api.SignalSessionLock;
  94 import org.whispersystems.signalservice.api.crypto.UntrustedIdentityException;
  95 import org.whispersystems.signalservice.api.groupsv2.GroupLinkNotActiveException;
  96 import org.whispersystems.signalservice.api.groupsv2.GroupsV2AuthorizationString;
  97 import org.whispersystems.signalservice.api.messages.SendMessageResult;
  98 import org.whispersystems.signalservice.api.messages.SignalServiceAttachment;
  99 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentPointer;
 100 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentRemoteId;
 101 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentStream;
 102 import org.whispersystems.signalservice.api.messages.SignalServiceContent;
 103 import org.whispersystems.signalservice.api.messages.SignalServiceDataMessage;
 104 import org.whispersystems.signalservice.api.messages.SignalServiceEnvelope;
 105 import org.whispersystems.signalservice.api.messages.SignalServiceGroup;
 106 import org.whispersystems.signalservice.api.messages.SignalServiceGroupV2;
 107 import org.whispersystems.signalservice.api.messages.SignalServiceReceiptMessage;
 108 import org.whispersystems.signalservice.api.messages.SignalServiceTypingMessage;
 109 import org.whispersystems.signalservice.api.messages.multidevice.BlockedListMessage;
 110 import org.whispersystems.signalservice.api.messages.multidevice.ContactsMessage;
 111 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContact;
 112 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsInputStream;
 113 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsOutputStream;
 114 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroup;
 115 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsInputStream;
 116 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsOutputStream;
 117 import org.whispersystems.signalservice.api.messages.multidevice.RequestMessage;
 118 import org.whispersystems.signalservice.api.messages.multidevice.SignalServiceSyncMessage;
 119 import org.whispersystems.signalservice.api.messages.multidevice.StickerPackOperationMessage;
 120 import org.whispersystems.signalservice.api.messages.multidevice.VerifiedMessage;
 121 import org.whispersystems.signalservice.api.profiles.ProfileAndCredential;
 122 import org.whispersystems.signalservice.api.profiles.SignalServiceProfile;
 123 import org.whispersystems.signalservice.api.push.SignalServiceAddress;
 124 import org.whispersystems.signalservice.api.push.exceptions.ConflictException;
 125 import org.whispersystems.signalservice.api.push.exceptions.MissingConfigurationException;
 126 import org.whispersystems.signalservice.api.util.DeviceNameUtil;
 127 import org.whispersystems.signalservice.api.util.InvalidNumberException;
 128 import org.whispersystems.signalservice.api.util.PhoneNumberFormatter;
 129 import org.whispersystems.signalservice.api.util.UuidUtil;
 130 import org.whispersystems.signalservice.api.websocket.WebSocketUnavailableException;
 131 import org.whispersystems.signalservice.internal.contacts.crypto.Quote;
 132 import org.whispersystems.signalservice.internal.contacts.crypto.UnauthenticatedQuoteException;
 133 import org.whispersystems.signalservice.internal.contacts.crypto.UnauthenticatedResponseException;
 134 import org.whispersystems.signalservice.internal.push.SignalServiceProtos;
 135 import org.whispersystems.signalservice.internal.push.UnsupportedDataMessageException;
 136 import org.whispersystems.signalservice.internal.util.DynamicCredentialsProvider;
 137 import org.whispersystems.signalservice.internal.util.Hex;
 138 import org.whispersystems.signalservice.internal.util.Util;
 139
 140 import java.io.Closeable;
 141 import java.io.File;
 142 import java.io.FileInputStream;
 143 import java.io.FileOutputStream;
 144 import java.io.IOException;
 145 import java.io.InputStream;
 146 import java.io.OutputStream;
 147 import java.net.URI;
 148 import java.net.URISyntaxException;
 149 import java.net.URLEncoder;
 150 import java.nio.charset.StandardCharsets;
 151 import java.nio.file.Files;
 152 import java.security.SignatureException;
 153 import java.util.ArrayList;
 154 import java.util.Arrays;
 155 import java.util.Base64;
 156 import java.util.Collection;
 157 import java.util.Date;
 158 import java.util.HashSet;
 159 import java.util.List;
 160 import java.util.Map;
 161 import java.util.Set;
 162 import java.util.UUID;
 163 import java.util.concurrent.ExecutorService;
 164 import java.util.concurrent.Executors;
 165 import java.util.concurrent.TimeUnit;
 166 import java.util.concurrent.TimeoutException;
 167 import java.util.concurrent.locks.ReentrantLock;
 168 import java.util.function.Function;
 169 import java.util.stream.Collectors;
 170
 171 import static org.asamk.signal.manager.config.ServiceConfig.capabilities;
 172
 173 public class Manager implements Closeable {
 174
 175     private final static Logger logger = LoggerFactory.getLogger(Manager.class);
 176
 177     private final ServiceEnvironmentConfig serviceEnvironmentConfig;
 178     private final SignalDependencies dependencies;
 179
 180     private SignalAccount account;
 181
 182     private final ExecutorService executor = Executors.newCachedThreadPool();
 183
 184     private final ProfileHelper profileHelper;
 185     private final GroupV2Helper groupV2Helper;
 186     private final PinHelper pinHelper;
 187     private final SendHelper sendHelper;
 188
 189     private final AvatarStore avatarStore;
 190     private final AttachmentStore attachmentStore;
 191     private final StickerPackStore stickerPackStore;
 192     private final SignalSessionLock sessionLock = new SignalSessionLock() {
 193         private final ReentrantLock LEGACY_LOCK = new ReentrantLock();
 194
 195         @Override
 196         public Lock acquire() {
 197             LEGACY_LOCK.lock();
 198             return LEGACY_LOCK::unlock;
 199         }
 200     };
 201
 202     Manager(
 203             SignalAccount account,
 204             PathConfig pathConfig,
 205             ServiceEnvironmentConfig serviceEnvironmentConfig,
 206             String userAgent
 207     ) {
 208         this.account = account;
 209         this.serviceEnvironmentConfig = serviceEnvironmentConfig;
 210
 211         final var credentialsProvider = new DynamicCredentialsProvider(account.getUuid(),
 212                 account.getUsername(),
 213                 account.getPassword(),
 214                 account.getDeviceId());
 215         this.dependencies = new SignalDependencies(account.getSelfAddress(),
 216                 serviceEnvironmentConfig,
 217                 userAgent,
 218                 credentialsProvider,
 219                 account.getSignalProtocolStore(),
 220                 executor,
 221                 sessionLock);
 222         this.pinHelper = new PinHelper(dependencies.getKeyBackupService());
 223
 224         final var unidentifiedAccessHelper = new UnidentifiedAccessHelper(account::getProfileKey,
 225                 account.getProfileStore()::getProfileKey,
 226                 this::getRecipientProfile,
 227                 this::getSenderCertificate);
 228         this.profileHelper = new ProfileHelper(account.getProfileStore()::getProfileKey,
 229                 unidentifiedAccessHelper::getAccessFor,
 230                 dependencies::getProfileService,
 231                 dependencies::getMessageReceiver,
 232                 this::resolveSignalServiceAddress);
 233         this.groupV2Helper = new GroupV2Helper(this::getRecipientProfileKeyCredential,
 234                 this::getRecipientProfile,
 235                 account::getSelfRecipientId,
 236                 dependencies.getGroupsV2Operations(),
 237                 dependencies.getGroupsV2Api(),
 238                 this::getGroupAuthForToday,
 239                 this::resolveSignalServiceAddress);
 240         this.avatarStore = new AvatarStore(pathConfig.getAvatarsPath());
 241         this.attachmentStore = new AttachmentStore(pathConfig.getAttachmentsPath());
 242         this.stickerPackStore = new StickerPackStore(pathConfig.getStickerPacksPath());
 243         this.sendHelper = new SendHelper(account,
 244                 dependencies,
 245                 unidentifiedAccessHelper,
 246                 this::resolveSignalServiceAddress,
 247                 this::resolveRecipient,
 248                 this::handleIdentityFailure,
 249                 this::getGroup,
 250                 this::refreshRegisteredUser);
 251     }
 252
 253     public String getUsername() {
 254         return account.getUsername();
 255     }
 256
 257     public SignalServiceAddress getSelfAddress() {
 258         return account.getSelfAddress();
 259     }
 260
 261     public RecipientId getSelfRecipientId() {
 262         return account.getSelfRecipientId();
 263     }
 264
 265     private IdentityKeyPair getIdentityKeyPair() {
 266         return account.getIdentityKeyPair();
 267     }
 268
 269     public int getDeviceId() {
 270         return account.getDeviceId();
 271     }
 272
 273     public static Manager init(
 274             String username,
 275             File settingsPath,
 276             ServiceEnvironment serviceEnvironment,
 277             String userAgent,
 278             final TrustNewIdentity trustNewIdentity
 279     ) throws IOException, NotRegisteredException {
 280         var pathConfig = PathConfig.createDefault(settingsPath);
 281
 282         if (!SignalAccount.userExists(pathConfig.getDataPath(), username)) {
 283             throw new NotRegisteredException();
 284         }
 285
 286         var account = SignalAccount.load(pathConfig.getDataPath(), username, true, trustNewIdentity);
 287
 288         if (!account.isRegistered()) {
 289             throw new NotRegisteredException();
 290         }
 291
 292         final var serviceEnvironmentConfig = ServiceConfig.getServiceEnvironmentConfig(serviceEnvironment, userAgent);
 293
 294         return new Manager(account, pathConfig, serviceEnvironmentConfig, userAgent);
 295     }
 296
 297     public static List<String> getAllLocalUsernames(File settingsPath) {
 298         var pathConfig = PathConfig.createDefault(settingsPath);
 299         final var dataPath = pathConfig.getDataPath();
 300         final var files = dataPath.listFiles();
 301
 302         if (files == null) {
 303             return List.of();
 304         }
 305
 306         return Arrays.stream(files)
 307                 .filter(File::isFile)
 308                 .map(File::getName)
 309                 .filter(file -> PhoneNumberFormatter.isValidNumber(file, null))
 310                 .collect(Collectors.toList());
 311     }
 312
 313     public void checkAccountState() throws IOException {
 314         if (account.getLastReceiveTimestamp() == 0) {
 315             logger.warn("The Signal protocol expects that incoming messages are regularly received.");
 316         } else {
 317             var diffInMilliseconds = System.currentTimeMillis() - account.getLastReceiveTimestamp();
 318             long days = TimeUnit.DAYS.convert(diffInMilliseconds, TimeUnit.MILLISECONDS);
 319             if (days > 7) {
 320                 logger.warn(
 321                         "Messages have been last received {} days ago. The Signal protocol expects that incoming messages are regularly received.",
 322                         days);
 323             }
 324         }
 325         if (dependencies.getAccountManager().getPreKeysCount() < ServiceConfig.PREKEY_MINIMUM_COUNT) {
 326             refreshPreKeys();
 327         }
 328         if (account.getUuid() == null) {
 329             account.setUuid(dependencies.getAccountManager().getOwnUuid());
 330         }
 331         updateAccountAttributes();
 332     }
 333
 334     /**
 335      * This is used for checking a set of phone numbers for registration on Signal
 336      *
 337      * @param numbers The set of phone number in question
 338      * @return A map of numbers to canonicalized number and uuid. If a number is not registered the uuid is null.
 339      * @throws IOException if its unable to get the contacts to check if they're registered
 340      */
 341     public Map<String, Pair<String, UUID>> areUsersRegistered(Set<String> numbers) throws IOException {
 342         Map<String, String> canonicalizedNumbers = numbers.stream().collect(Collectors.toMap(n -> n, n -> {
 343             try {
 344                 return canonicalizePhoneNumber(n);
 345             } catch (InvalidNumberException e) {
 346                 return "";
 347             }
 348         }));
 349
 350         // Note "contactDetails" has no optionals. It only gives us info on users who are registered
 351         var contactDetails = getRegisteredUsers(canonicalizedNumbers.values()
 352                 .stream()
 353                 .filter(s -> !s.isEmpty())
 354                 .collect(Collectors.toSet()));
 355
 356         // Store numbers as recipients so we have the number/uuid association
 357         contactDetails.forEach((number, uuid) -> resolveRecipientTrusted(new SignalServiceAddress(uuid, number)));
 358
 359         return numbers.stream().collect(Collectors.toMap(n -> n, n -> {
 360             final var number = canonicalizedNumbers.get(n);
 361             final var uuid = contactDetails.get(number);
 362             return new Pair<>(number.isEmpty() ? null : number, uuid);
 363         }));
 364     }
 365
 366     public void updateAccountAttributes() throws IOException {
 367         dependencies.getAccountManager()
 368                 .setAccountAttributes(account.getEncryptedDeviceName(),
 369                         null,
 370                         account.getLocalRegistrationId(),
 371                         true,
 372                         // set legacy pin only if no KBS master key is set
 373                         account.getPinMasterKey() == null ? account.getRegistrationLockPin() : null,
 374                         account.getPinMasterKey() == null ? null : account.getPinMasterKey().deriveRegistrationLock(),
 375                         account.getSelfUnidentifiedAccessKey(),
 376                         account.isUnrestrictedUnidentifiedAccess(),
 377                         capabilities,
 378                         account.isDiscoverableByPhoneNumber());
 379     }
 380
 381     /**
 382      * @param givenName  if null, the previous givenName will be kept
 383      * @param familyName if null, the previous familyName will be kept
 384      * @param about      if null, the previous about text will be kept
 385      * @param aboutEmoji if null, the previous about emoji will be kept
 386      * @param avatar     if avatar is null the image from the local avatar store is used (if present),
 387      */
 388     public void setProfile(
 389             String givenName, final String familyName, String about, String aboutEmoji, Optional<File> avatar
 390     ) throws IOException {
 391         var profile = getRecipientProfile(account.getSelfRecipientId());
 392         var builder = profile == null ? Profile.newBuilder() : Profile.newBuilder(profile);
 393         if (givenName != null) {
 394             builder.withGivenName(givenName);
 395         }
 396         if (familyName != null) {
 397             builder.withFamilyName(familyName);
 398         }
 399         if (about != null) {
 400             builder.withAbout(about);
 401         }
 402         if (aboutEmoji != null) {
 403             builder.withAboutEmoji(aboutEmoji);
 404         }
 405         var newProfile = builder.build();
 406
 407         try (final var streamDetails = avatar == null
 408                 ? avatarStore.retrieveProfileAvatar(getSelfAddress())
 409                 : avatar.isPresent() ? Utils.createStreamDetailsFromFile(avatar.get()) : null) {
 410             dependencies.getAccountManager()
 411                     .setVersionedProfile(account.getUuid(),
 412                             account.getProfileKey(),
 413                             newProfile.getInternalServiceName(),
 414                             newProfile.getAbout() == null ? "" : newProfile.getAbout(),
 415                             newProfile.getAboutEmoji() == null ? "" : newProfile.getAboutEmoji(),
 416                             Optional.absent(),
 417                             streamDetails);
 418         }
 419
 420         if (avatar != null) {
 421             if (avatar.isPresent()) {
 422                 avatarStore.storeProfileAvatar(getSelfAddress(),
 423                         outputStream -> IOUtils.copyFileToStream(avatar.get(), outputStream));
 424             } else {
 425                 avatarStore.deleteProfileAvatar(getSelfAddress());
 426             }
 427         }
 428         account.getProfileStore().storeProfile(account.getSelfRecipientId(), newProfile);
 429
 430         sendHelper.sendSyncMessage(SignalServiceSyncMessage.forFetchLatest(SignalServiceSyncMessage.FetchType.LOCAL_PROFILE));
 431     }
 432
 433     public void unregister() throws IOException {
 434         // When setting an empty GCM id, the Signal-Server also sets the fetchesMessages property to false.
 435         // If this is the master device, other users can't send messages to this number anymore.
 436         // If this is a linked device, other users can still send messages, but this device doesn't receive them anymore.
 437         dependencies.getAccountManager().setGcmId(Optional.absent());
 438
 439         account.setRegistered(false);
 440     }
 441
 442     public void deleteAccount() throws IOException {
 443         dependencies.getAccountManager().deleteAccount();
 444
 445         account.setRegistered(false);
 446     }
 447
 448     public List<Device> getLinkedDevices() throws IOException {
 449         var devices = dependencies.getAccountManager().getDevices();
 450         account.setMultiDevice(devices.size() > 1);
 451         var identityKey = account.getIdentityKeyPair().getPrivateKey();
 452         return devices.stream().map(d -> {
 453             String deviceName = d.getName();
 454             if (deviceName != null) {
 455                 try {
 456                     deviceName = DeviceNameUtil.decryptDeviceName(deviceName, identityKey);
 457                 } catch (IOException e) {
 458                     logger.debug("Failed to decrypt device name, maybe plain text?", e);
 459                 }
 460             }
 461             return new Device(d.getId(), deviceName, d.getCreated(), d.getLastSeen());
 462         }).collect(Collectors.toList());
 463     }
 464
 465     public void removeLinkedDevices(int deviceId) throws IOException {
 466         dependencies.getAccountManager().removeDevice(deviceId);
 467         var devices = dependencies.getAccountManager().getDevices();
 468         account.setMultiDevice(devices.size() > 1);
 469     }
 470
 471     public void addDeviceLink(URI linkUri) throws IOException, InvalidKeyException {
 472         var info = DeviceLinkInfo.parseDeviceLinkUri(linkUri);
 473
 474         addDevice(info.deviceIdentifier, info.deviceKey);
 475     }
 476
 477     private void addDevice(String deviceIdentifier, ECPublicKey deviceKey) throws IOException, InvalidKeyException {
 478         var identityKeyPair = getIdentityKeyPair();
 479         var verificationCode = dependencies.getAccountManager().getNewDeviceVerificationCode();
 480
 481         dependencies.getAccountManager()
 482                 .addDevice(deviceIdentifier,
 483                         deviceKey,
 484                         identityKeyPair,
 485                         Optional.of(account.getProfileKey().serialize()),
 486                         verificationCode);
 487         account.setMultiDevice(true);
 488     }
 489
 490     public void setRegistrationLockPin(Optional<String> pin) throws IOException, UnauthenticatedResponseException {
 491         if (!account.isMasterDevice()) {
 492             throw new RuntimeException("Only master device can set a PIN");
 493         }
 494         if (pin.isPresent()) {
 495             final var masterKey = account.getPinMasterKey() != null
 496                     ? account.getPinMasterKey()
 497                     : KeyUtils.createMasterKey();
 498
 499             pinHelper.setRegistrationLockPin(pin.get(), masterKey);
 500
 501             account.setRegistrationLockPin(pin.get(), masterKey);
 502         } else {
 503             // Remove KBS Pin
 504             pinHelper.removeRegistrationLockPin();
 505
 506             account.setRegistrationLockPin(null, null);
 507         }
 508     }
 509
 510     void refreshPreKeys() throws IOException {
 511         var oneTimePreKeys = generatePreKeys();
 512         final var identityKeyPair = getIdentityKeyPair();
 513         var signedPreKeyRecord = generateSignedPreKey(identityKeyPair);
 514
 515         dependencies.getAccountManager().setPreKeys(identityKeyPair.getPublicKey(), signedPreKeyRecord, oneTimePreKeys);
 516     }
 517
 518     private List<PreKeyRecord> generatePreKeys() {
 519         final var offset = account.getPreKeyIdOffset();
 520
 521         var records = KeyUtils.generatePreKeyRecords(offset, ServiceConfig.PREKEY_BATCH_SIZE);
 522         account.addPreKeys(records);
 523
 524         return records;
 525     }
 526
 527     private SignedPreKeyRecord generateSignedPreKey(IdentityKeyPair identityKeyPair) {
 528         final var signedPreKeyId = account.getNextSignedPreKeyId();
 529
 530         var record = KeyUtils.generateSignedPreKeyRecord(identityKeyPair, signedPreKeyId);
 531         account.addSignedPreKey(record);
 532
 533         return record;
 534     }
 535
 536     public Profile getRecipientProfile(
 537             RecipientId recipientId
 538     ) {
 539         return getRecipientProfile(recipientId, false);
 540     }
 541
 542     private final Set<RecipientId> pendingProfileRequest = new HashSet<>();
 543
 544     Profile getRecipientProfile(
 545             RecipientId recipientId, boolean force
 546     ) {
 547         var profile = account.getProfileStore().getProfile(recipientId);
 548
 549         var now = System.currentTimeMillis();
 550         // Profiles are cached for 24h before retrieving them again, unless forced
 551         if (!force && profile != null && now - profile.getLastUpdateTimestamp() < 24 * 60 * 60 * 1000) {
 552             return profile;
 553         }
 554
 555         synchronized (pendingProfileRequest) {
 556             if (pendingProfileRequest.contains(recipientId)) {
 557                 return profile;
 558             }
 559             pendingProfileRequest.add(recipientId);
 560         }
 561         final SignalServiceProfile encryptedProfile;
 562         try {
 563             encryptedProfile = retrieveEncryptedProfile(recipientId);
 564         } finally {
 565             synchronized (pendingProfileRequest) {
 566                 pendingProfileRequest.remove(recipientId);
 567             }
 568         }
 569         if (encryptedProfile == null) {
 570             return null;
 571         }
 572
 573         profile = decryptProfileIfKeyKnown(recipientId, encryptedProfile);
 574         account.getProfileStore().storeProfile(recipientId, profile);
 575
 576         return profile;
 577     }
 578
 579     private Profile decryptProfileIfKeyKnown(
 580             final RecipientId recipientId, final SignalServiceProfile encryptedProfile
 581     ) {
 582         var profileKey = account.getProfileStore().getProfileKey(recipientId);
 583         if (profileKey == null) {
 584             return new Profile(System.currentTimeMillis(),
 585                     null,
 586                     null,
 587                     null,
 588                     null,
 589                     ProfileUtils.getUnidentifiedAccessMode(encryptedProfile, null),
 590                     ProfileUtils.getCapabilities(encryptedProfile));
 591         }
 592
 593         return decryptProfileAndDownloadAvatar(recipientId, profileKey, encryptedProfile);
 594     }
 595
 596     private SignalServiceProfile retrieveEncryptedProfile(RecipientId recipientId) {
 597         try {
 598             return retrieveProfileAndCredential(recipientId, SignalServiceProfile.RequestType.PROFILE).getProfile();
 599         } catch (IOException e) {
 600             logger.warn("Failed to retrieve profile, ignoring: {}", e.getMessage());
 601             return null;
 602         }
 603     }
 604
 605     private ProfileAndCredential retrieveProfileAndCredential(
 606             final RecipientId recipientId, final SignalServiceProfile.RequestType requestType
 607     ) throws IOException {
 608         final var profileAndCredential = profileHelper.retrieveProfileSync(recipientId, requestType);
 609         final var profile = profileAndCredential.getProfile();
 610
 611         try {
 612             var newIdentity = account.getIdentityKeyStore()
 613                     .saveIdentity(recipientId,
 614                             new IdentityKey(Base64.getDecoder().decode(profile.getIdentityKey())),
 615                             new Date());
 616
 617             if (newIdentity) {
 618                 account.getSessionStore().archiveSessions(recipientId);
 619             }
 620         } catch (InvalidKeyException ignored) {
 621             logger.warn("Got invalid identity key in profile for {}",
 622                     resolveSignalServiceAddress(recipientId).getIdentifier());
 623         }
 624         return profileAndCredential;
 625     }
 626
 627     private ProfileKeyCredential getRecipientProfileKeyCredential(RecipientId recipientId) {
 628         var profileKeyCredential = account.getProfileStore().getProfileKeyCredential(recipientId);
 629         if (profileKeyCredential != null) {
 630             return profileKeyCredential;
 631         }
 632
 633         ProfileAndCredential profileAndCredential;
 634         try {
 635             profileAndCredential = retrieveProfileAndCredential(recipientId,
 636                     SignalServiceProfile.RequestType.PROFILE_AND_CREDENTIAL);
 637         } catch (IOException e) {
 638             logger.warn("Failed to retrieve profile key credential, ignoring: {}", e.getMessage());
 639             return null;
 640         }
 641
 642         profileKeyCredential = profileAndCredential.getProfileKeyCredential().orNull();
 643         account.getProfileStore().storeProfileKeyCredential(recipientId, profileKeyCredential);
 644
 645         var profileKey = account.getProfileStore().getProfileKey(recipientId);
 646         if (profileKey != null) {
 647             final var profile = decryptProfileAndDownloadAvatar(recipientId,
 648                     profileKey,
 649                     profileAndCredential.getProfile());
 650             account.getProfileStore().storeProfile(recipientId, profile);
 651         }
 652
 653         return profileKeyCredential;
 654     }
 655
 656     private Profile decryptProfileAndDownloadAvatar(
 657             final RecipientId recipientId, final ProfileKey profileKey, final SignalServiceProfile encryptedProfile
 658     ) {
 659         if (encryptedProfile.getAvatar() != null) {
 660             downloadProfileAvatar(resolveSignalServiceAddress(recipientId), encryptedProfile.getAvatar(), profileKey);
 661         }
 662
 663         return ProfileUtils.decryptProfile(profileKey, encryptedProfile);
 664     }
 665
 666     private Optional<SignalServiceAttachmentStream> createGroupAvatarAttachment(GroupId groupId) throws IOException {
 667         final var streamDetails = avatarStore.retrieveGroupAvatar(groupId);
 668         if (streamDetails == null) {
 669             return Optional.absent();
 670         }
 671
 672         return Optional.of(AttachmentUtils.createAttachment(streamDetails, Optional.absent()));
 673     }
 674
 675     private Optional<SignalServiceAttachmentStream> createContactAvatarAttachment(SignalServiceAddress address) throws IOException {
 676         final var streamDetails = avatarStore.retrieveContactAvatar(address);
 677         if (streamDetails == null) {
 678             return Optional.absent();
 679         }
 680
 681         return Optional.of(AttachmentUtils.createAttachment(streamDetails, Optional.absent()));
 682     }
 683
 684     private GroupInfo getGroupForUpdating(GroupId groupId) throws GroupNotFoundException, NotAGroupMemberException {
 685         var g = getGroup(groupId);
 686         if (g == null) {
 687             throw new GroupNotFoundException(groupId);
 688         }
 689         if (!g.isMember(account.getSelfRecipientId()) && !g.isPendingMember(account.getSelfRecipientId())) {
 690             throw new NotAGroupMemberException(groupId, g.getTitle());
 691         }
 692         return g;
 693     }
 694
 695     public List<GroupInfo> getGroups() {
 696         return account.getGroupStore().getGroups();
 697     }
 698
 699     public Pair<Long, List<SendMessageResult>> sendGroupMessage(
 700             String messageText, List<String> attachments, GroupId groupId
 701     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 702         final var messageBuilder = createMessageBuilder().withBody(messageText);
 703         if (attachments != null) {
 704             messageBuilder.withAttachments(AttachmentUtils.getSignalServiceAttachments(attachments));
 705         }
 706
 707         return sendHelper.sendAsGroupMessage(messageBuilder, groupId);
 708     }
 709
 710     public Pair<Long, List<SendMessageResult>> sendGroupMessageReaction(
 711             String emoji, boolean remove, String targetAuthor, long targetSentTimestamp, GroupId groupId
 712     ) throws IOException, InvalidNumberException, NotAGroupMemberException, GroupNotFoundException {
 713         var targetAuthorRecipientId = canonicalizeAndResolveRecipient(targetAuthor);
 714         var reaction = new SignalServiceDataMessage.Reaction(emoji,
 715                 remove,
 716                 resolveSignalServiceAddress(targetAuthorRecipientId),
 717                 targetSentTimestamp);
 718         final var messageBuilder = createMessageBuilder().withReaction(reaction);
 719
 720         return sendHelper.sendAsGroupMessage(messageBuilder, groupId);
 721     }
 722
 723     public Pair<Long, List<SendMessageResult>> sendQuitGroupMessage(
 724             GroupId groupId, Set<String> groupAdmins
 725     ) throws GroupNotFoundException, IOException, NotAGroupMemberException, InvalidNumberException, LastGroupAdminException {
 726         var group = getGroupForUpdating(groupId);
 727         if (group instanceof GroupInfoV1) {
 728             return quitGroupV1((GroupInfoV1) group);
 729         }
 730
 731         final var newAdmins = getRecipientIds(groupAdmins);
 732         try {
 733             return quitGroupV2((GroupInfoV2) group, newAdmins);
 734         } catch (ConflictException e) {
 735             // Detected conflicting update, refreshing group and trying again
 736             group = getGroup(groupId, true);
 737             return quitGroupV2((GroupInfoV2) group, newAdmins);
 738         }
 739     }
 740
 741     private Pair<Long, List<SendMessageResult>> quitGroupV1(final GroupInfoV1 groupInfoV1) throws IOException {
 742         var group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.QUIT)
 743                 .withId(groupInfoV1.getGroupId().serialize())
 744                 .build();
 745
 746         var messageBuilder = createMessageBuilder().asGroupMessage(group);
 747         groupInfoV1.removeMember(account.getSelfRecipientId());
 748         account.getGroupStore().updateGroup(groupInfoV1);
 749         return sendHelper.sendGroupMessage(messageBuilder.build(),
 750                 groupInfoV1.getMembersIncludingPendingWithout(account.getSelfRecipientId()));
 751     }
 752
 753     private Pair<Long, List<SendMessageResult>> quitGroupV2(
 754             final GroupInfoV2 groupInfoV2, final Set<RecipientId> newAdmins
 755     ) throws LastGroupAdminException, IOException {
 756         final var currentAdmins = groupInfoV2.getAdminMembers();
 757         newAdmins.removeAll(currentAdmins);
 758         newAdmins.retainAll(groupInfoV2.getMembers());
 759         if (currentAdmins.contains(getSelfRecipientId())
 760                 && currentAdmins.size() == 1
 761                 && groupInfoV2.getMembers().size() > 1
 762                 && newAdmins.size() == 0) {
 763             // Last admin can't leave the group, unless she's also the last member
 764             throw new LastGroupAdminException(groupInfoV2.getGroupId(), groupInfoV2.getTitle());
 765         }
 766         final var groupGroupChangePair = groupV2Helper.leaveGroup(groupInfoV2, newAdmins);
 767         groupInfoV2.setGroup(groupGroupChangePair.first(), this::resolveRecipient);
 768         var messageBuilder = getGroupUpdateMessageBuilder(groupInfoV2, groupGroupChangePair.second().toByteArray());
 769         account.getGroupStore().updateGroup(groupInfoV2);
 770         return sendHelper.sendGroupMessage(messageBuilder.build(),
 771                 groupInfoV2.getMembersIncludingPendingWithout(account.getSelfRecipientId()));
 772     }
 773
 774     public void deleteGroup(GroupId groupId) throws IOException {
 775         account.getGroupStore().deleteGroup(groupId);
 776         avatarStore.deleteGroupAvatar(groupId);
 777     }
 778
 779     public Pair<GroupId, List<SendMessageResult>> createGroup(
 780             String name, List<String> members, File avatarFile
 781     ) throws IOException, AttachmentInvalidException, InvalidNumberException {
 782         return createGroup(name, members == null ? null : getRecipientIds(members), avatarFile);
 783     }
 784
 785     private Pair<GroupId, List<SendMessageResult>> createGroup(
 786             String name, Set<RecipientId> members, File avatarFile
 787     ) throws IOException, AttachmentInvalidException {
 788         final var selfRecipientId = account.getSelfRecipientId();
 789         if (members != null && members.contains(selfRecipientId)) {
 790             members = new HashSet<>(members);
 791             members.remove(selfRecipientId);
 792         }
 793
 794         var gv2Pair = groupV2Helper.createGroup(name == null ? "" : name,
 795                 members == null ? Set.of() : members,
 796                 avatarFile);
 797
 798         SignalServiceDataMessage.Builder messageBuilder;
 799         if (gv2Pair == null) {
 800             // Failed to create v2 group, creating v1 group instead
 801             var gv1 = new GroupInfoV1(GroupIdV1.createRandom());
 802             gv1.addMembers(List.of(selfRecipientId));
 803             final var result = updateGroupV1(gv1, name, members, avatarFile);
 804             return new Pair<>(gv1.getGroupId(), result.second());
 805         }
 806
 807         final var gv2 = gv2Pair.first();
 808         final var decryptedGroup = gv2Pair.second();
 809
 810         gv2.setGroup(decryptedGroup, this::resolveRecipient);
 811         if (avatarFile != null) {
 812             avatarStore.storeGroupAvatar(gv2.getGroupId(),
 813                     outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
 814         }
 815         messageBuilder = getGroupUpdateMessageBuilder(gv2, null);
 816         account.getGroupStore().updateGroup(gv2);
 817
 818         final var result = sendHelper.sendGroupMessage(messageBuilder.build(),
 819                 gv2.getMembersIncludingPendingWithout(selfRecipientId));
 820         return new Pair<>(gv2.getGroupId(), result.second());
 821     }
 822
 823     public Pair<Long, List<SendMessageResult>> updateGroup(
 824             GroupId groupId,
 825             String name,
 826             String description,
 827             List<String> members,
 828             List<String> removeMembers,
 829             List<String> admins,
 830             List<String> removeAdmins,
 831             boolean resetGroupLink,
 832             GroupLinkState groupLinkState,
 833             GroupPermission addMemberPermission,
 834             GroupPermission editDetailsPermission,
 835             File avatarFile,
 836             Integer expirationTimer,
 837             Boolean isAnnouncementGroup
 838     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, InvalidNumberException, NotAGroupMemberException {
 839         return updateGroup(groupId,
 840                 name,
 841                 description,
 842                 members == null ? null : getRecipientIds(members),
 843                 removeMembers == null ? null : getRecipientIds(removeMembers),
 844                 admins == null ? null : getRecipientIds(admins),
 845                 removeAdmins == null ? null : getRecipientIds(removeAdmins),
 846                 resetGroupLink,
 847                 groupLinkState,
 848                 addMemberPermission,
 849                 editDetailsPermission,
 850                 avatarFile,
 851                 expirationTimer,
 852                 isAnnouncementGroup);
 853     }
 854
 855     private Pair<Long, List<SendMessageResult>> updateGroup(
 856             final GroupId groupId,
 857             final String name,
 858             final String description,
 859             final Set<RecipientId> members,
 860             final Set<RecipientId> removeMembers,
 861             final Set<RecipientId> admins,
 862             final Set<RecipientId> removeAdmins,
 863             final boolean resetGroupLink,
 864             final GroupLinkState groupLinkState,
 865             final GroupPermission addMemberPermission,
 866             final GroupPermission editDetailsPermission,
 867             final File avatarFile,
 868             final Integer expirationTimer,
 869             final Boolean isAnnouncementGroup
 870     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 871         var group = getGroupForUpdating(groupId);
 872
 873         if (group instanceof GroupInfoV2) {
 874             try {
 875                 return updateGroupV2((GroupInfoV2) group,
 876                         name,
 877                         description,
 878                         members,
 879                         removeMembers,
 880                         admins,
 881                         removeAdmins,
 882                         resetGroupLink,
 883                         groupLinkState,
 884                         addMemberPermission,
 885                         editDetailsPermission,
 886                         avatarFile,
 887                         expirationTimer,
 888                         isAnnouncementGroup);
 889             } catch (ConflictException e) {
 890                 // Detected conflicting update, refreshing group and trying again
 891                 group = getGroup(groupId, true);
 892                 return updateGroupV2((GroupInfoV2) group,
 893                         name,
 894                         description,
 895                         members,
 896                         removeMembers,
 897                         admins,
 898                         removeAdmins,
 899                         resetGroupLink,
 900                         groupLinkState,
 901                         addMemberPermission,
 902                         editDetailsPermission,
 903                         avatarFile,
 904                         expirationTimer,
 905                         isAnnouncementGroup);
 906             }
 907         }
 908
 909         final var gv1 = (GroupInfoV1) group;
 910         final var result = updateGroupV1(gv1, name, members, avatarFile);
 911         if (expirationTimer != null) {
 912             setExpirationTimer(gv1, expirationTimer);
 913         }
 914         return result;
 915     }
 916
 917     private Pair<Long, List<SendMessageResult>> updateGroupV1(
 918             final GroupInfoV1 gv1, final String name, final Set<RecipientId> members, final File avatarFile
 919     ) throws IOException, AttachmentInvalidException {
 920         updateGroupV1Details(gv1, name, members, avatarFile);
 921         var messageBuilder = getGroupUpdateMessageBuilder(gv1);
 922
 923         account.getGroupStore().updateGroup(gv1);
 924
 925         return sendHelper.sendGroupMessage(messageBuilder.build(),
 926                 gv1.getMembersIncludingPendingWithout(account.getSelfRecipientId()));
 927     }
 928
 929     private void updateGroupV1Details(
 930             final GroupInfoV1 g, final String name, final Collection<RecipientId> members, final File avatarFile
 931     ) throws IOException {
 932         if (name != null) {
 933             g.name = name;
 934         }
 935
 936         if (members != null) {
 937             final var newMemberAddresses = members.stream()
 938                     .filter(member -> !g.isMember(member))
 939                     .map(this::resolveSignalServiceAddress)
 940                     .collect(Collectors.toList());
 941             final var newE164Members = new HashSet<String>();
 942             for (var member : newMemberAddresses) {
 943                 if (!member.getNumber().isPresent()) {
 944                     continue;
 945                 }
 946                 newE164Members.add(member.getNumber().get());
 947             }
 948
 949             final var registeredUsers = getRegisteredUsers(newE164Members);
 950             if (registeredUsers.size() != newE164Members.size()) {
 951                 // Some of the new members are not registered on Signal
 952                 newE164Members.removeAll(registeredUsers.keySet());
 953                 throw new IOException("Failed to add members "
 954                         + String.join(", ", newE164Members)
 955                         + " to group: Not registered on Signal");
 956             }
 957
 958             g.addMembers(members);
 959         }
 960
 961         if (avatarFile != null) {
 962             avatarStore.storeGroupAvatar(g.getGroupId(),
 963                     outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
 964         }
 965     }
 966
 967     private Pair<Long, List<SendMessageResult>> updateGroupV2(
 968             final GroupInfoV2 group,
 969             final String name,
 970             final String description,
 971             final Set<RecipientId> members,
 972             final Set<RecipientId> removeMembers,
 973             final Set<RecipientId> admins,
 974             final Set<RecipientId> removeAdmins,
 975             final boolean resetGroupLink,
 976             final GroupLinkState groupLinkState,
 977             final GroupPermission addMemberPermission,
 978             final GroupPermission editDetailsPermission,
 979             final File avatarFile,
 980             final Integer expirationTimer,
 981             final Boolean isAnnouncementGroup
 982     ) throws IOException {
 983         Pair<Long, List<SendMessageResult>> result = null;
 984         if (group.isPendingMember(account.getSelfRecipientId())) {
 985             var groupGroupChangePair = groupV2Helper.acceptInvite(group);
 986             result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
 987         }
 988
 989         if (members != null) {
 990             final var newMembers = new HashSet<>(members);
 991             newMembers.removeAll(group.getMembers());
 992             if (newMembers.size() > 0) {
 993                 var groupGroupChangePair = groupV2Helper.addMembers(group, newMembers);
 994                 result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
 995             }
 996         }
 997
 998         if (removeMembers != null) {
 999             var existingRemoveMembers = new HashSet<>(removeMembers);
1000             existingRemoveMembers.retainAll(group.getMembers());
1001             existingRemoveMembers.remove(getSelfRecipientId());// self can be removed with sendQuitGroupMessage
1002             if (existingRemoveMembers.size() > 0) {
1003                 var groupGroupChangePair = groupV2Helper.removeMembers(group, existingRemoveMembers);
1004                 result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1005             }
1006
1007             var pendingRemoveMembers = new HashSet<>(removeMembers);
1008             pendingRemoveMembers.retainAll(group.getPendingMembers());
1009             if (pendingRemoveMembers.size() > 0) {
1010                 var groupGroupChangePair = groupV2Helper.revokeInvitedMembers(group, pendingRemoveMembers);
1011                 result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1012             }
1013         }
1014
1015         if (admins != null) {
1016             final var newAdmins = new HashSet<>(admins);
1017             newAdmins.retainAll(group.getMembers());
1018             newAdmins.removeAll(group.getAdminMembers());
1019             if (newAdmins.size() > 0) {
1020                 for (var admin : newAdmins) {
1021                     var groupGroupChangePair = groupV2Helper.setMemberAdmin(group, admin, true);
1022                     result = sendUpdateGroupV2Message(group,
1023                             groupGroupChangePair.first(),
1024                             groupGroupChangePair.second());
1025                 }
1026             }
1027         }
1028
1029         if (removeAdmins != null) {
1030             final var existingRemoveAdmins = new HashSet<>(removeAdmins);
1031             existingRemoveAdmins.retainAll(group.getAdminMembers());
1032             if (existingRemoveAdmins.size() > 0) {
1033                 for (var admin : existingRemoveAdmins) {
1034                     var groupGroupChangePair = groupV2Helper.setMemberAdmin(group, admin, false);
1035                     result = sendUpdateGroupV2Message(group,
1036                             groupGroupChangePair.first(),
1037                             groupGroupChangePair.second());
1038                 }
1039             }
1040         }
1041
1042         if (resetGroupLink) {
1043             var groupGroupChangePair = groupV2Helper.resetGroupLinkPassword(group);
1044             result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1045         }
1046
1047         if (groupLinkState != null) {
1048             var groupGroupChangePair = groupV2Helper.setGroupLinkState(group, groupLinkState);
1049             result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1050         }
1051
1052         if (addMemberPermission != null) {
1053             var groupGroupChangePair = groupV2Helper.setAddMemberPermission(group, addMemberPermission);
1054             result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1055         }
1056
1057         if (editDetailsPermission != null) {
1058             var groupGroupChangePair = groupV2Helper.setEditDetailsPermission(group, editDetailsPermission);
1059             result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1060         }
1061
1062         if (expirationTimer != null) {
1063             var groupGroupChangePair = groupV2Helper.setMessageExpirationTimer(group, expirationTimer);
1064             result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1065         }
1066
1067         if (isAnnouncementGroup != null) {
1068             var groupGroupChangePair = groupV2Helper.setIsAnnouncementGroup(group, isAnnouncementGroup);
1069             result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1070         }
1071
1072         if (name != null || description != null || avatarFile != null) {
1073             var groupGroupChangePair = groupV2Helper.updateGroup(group, name, description, avatarFile);
1074             if (avatarFile != null) {
1075                 avatarStore.storeGroupAvatar(group.getGroupId(),
1076                         outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
1077             }
1078             result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1079         }
1080
1081         return result;
1082     }
1083
1084     public Pair<GroupId, List<SendMessageResult>> joinGroup(
1085             GroupInviteLinkUrl inviteLinkUrl
1086     ) throws IOException, GroupLinkNotActiveException {
1087         final var groupJoinInfo = groupV2Helper.getDecryptedGroupJoinInfo(inviteLinkUrl.getGroupMasterKey(),
1088                 inviteLinkUrl.getPassword());
1089         final var groupChange = groupV2Helper.joinGroup(inviteLinkUrl.getGroupMasterKey(),
1090                 inviteLinkUrl.getPassword(),
1091                 groupJoinInfo);
1092         final var group = getOrMigrateGroup(inviteLinkUrl.getGroupMasterKey(),
1093                 groupJoinInfo.getRevision() + 1,
1094                 groupChange.toByteArray());
1095
1096         if (group.getGroup() == null) {
1097             // Only requested member, can't send update to group members
1098             return new Pair<>(group.getGroupId(), List.of());
1099         }
1100
1101         final var result = sendUpdateGroupV2Message(group, group.getGroup(), groupChange);
1102
1103         return new Pair<>(group.getGroupId(), result.second());
1104     }
1105
1106     private Pair<Long, List<SendMessageResult>> sendUpdateGroupV2Message(
1107             GroupInfoV2 group, DecryptedGroup newDecryptedGroup, GroupChange groupChange
1108     ) throws IOException {
1109         final var selfRecipientId = account.getSelfRecipientId();
1110         final var members = group.getMembersIncludingPendingWithout(selfRecipientId);
1111         group.setGroup(newDecryptedGroup, this::resolveRecipient);
1112         members.addAll(group.getMembersIncludingPendingWithout(selfRecipientId));
1113
1114         final var messageBuilder = getGroupUpdateMessageBuilder(group, groupChange.toByteArray());
1115         account.getGroupStore().updateGroup(group);
1116         return sendHelper.sendGroupMessage(messageBuilder.build(), members);
1117     }
1118
1119     private static int currentTimeDays() {
1120         return (int) TimeUnit.MILLISECONDS.toDays(System.currentTimeMillis());
1121     }
1122
1123     private GroupsV2AuthorizationString getGroupAuthForToday(
1124             final GroupSecretParams groupSecretParams
1125     ) throws IOException {
1126         final var today = currentTimeDays();
1127         // Returns credentials for the next 7 days
1128         final var credentials = dependencies.getGroupsV2Api().getCredentials(today);
1129         // TODO cache credentials until they expire
1130         var authCredentialResponse = credentials.get(today);
1131         try {
1132             return dependencies.getGroupsV2Api()
1133                     .getGroupsV2AuthorizationString(account.getUuid(),
1134                             today,
1135                             groupSecretParams,
1136                             authCredentialResponse);
1137         } catch (VerificationFailedException e) {
1138             throw new IOException(e);
1139         }
1140     }
1141
1142     Pair<Long, List<SendMessageResult>> sendGroupInfoMessage(
1143             GroupIdV1 groupId, SignalServiceAddress recipient
1144     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, AttachmentInvalidException {
1145         GroupInfoV1 g;
1146         var group = getGroupForUpdating(groupId);
1147         if (!(group instanceof GroupInfoV1)) {
1148             throw new IOException("Received an invalid group request for a v2 group!");
1149         }
1150         g = (GroupInfoV1) group;
1151
1152         final var recipientId = resolveRecipient(recipient);
1153         if (!g.isMember(recipientId)) {
1154             throw new NotAGroupMemberException(groupId, g.name);
1155         }
1156
1157         var messageBuilder = getGroupUpdateMessageBuilder(g);
1158
1159         // Send group message only to the recipient who requested it
1160         return sendHelper.sendGroupMessage(messageBuilder.build(), Set.of(recipientId));
1161     }
1162
1163     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfoV1 g) throws AttachmentInvalidException {
1164         var group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.UPDATE)
1165                 .withId(g.getGroupId().serialize())
1166                 .withName(g.name)
1167                 .withMembers(g.getMembers()
1168                         .stream()
1169                         .map(this::resolveSignalServiceAddress)
1170                         .collect(Collectors.toList()));
1171
1172         try {
1173             final var attachment = createGroupAvatarAttachment(g.getGroupId());
1174             if (attachment.isPresent()) {
1175                 group.withAvatar(attachment.get());
1176             }
1177         } catch (IOException e) {
1178             throw new AttachmentInvalidException(g.getGroupId().toBase64(), e);
1179         }
1180
1181         return createMessageBuilder().asGroupMessage(group.build()).withExpiration(g.getMessageExpirationTime());
1182     }
1183
1184     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfoV2 g, byte[] signedGroupChange) {
1185         var group = SignalServiceGroupV2.newBuilder(g.getMasterKey())
1186                 .withRevision(g.getGroup().getRevision())
1187                 .withSignedGroupChange(signedGroupChange);
1188         return createMessageBuilder().asGroupMessage(group.build()).withExpiration(g.getMessageExpirationTime());
1189     }
1190
1191     Pair<Long, List<SendMessageResult>> sendGroupInfoRequest(
1192             GroupIdV1 groupId, SignalServiceAddress recipient
1193     ) throws IOException {
1194         var group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.REQUEST_INFO).withId(groupId.serialize());
1195
1196         var messageBuilder = createMessageBuilder().asGroupMessage(group.build());
1197
1198         // Send group info request message to the recipient who sent us a message with this groupId
1199         return sendHelper.sendGroupMessage(messageBuilder.build(), Set.of(resolveRecipient(recipient)));
1200     }
1201
1202     public void sendReadReceipt(
1203             String sender, List<Long> messageIds
1204     ) throws IOException, UntrustedIdentityException, InvalidNumberException {
1205         var receiptMessage = new SignalServiceReceiptMessage(SignalServiceReceiptMessage.Type.READ,
1206                 messageIds,
1207                 System.currentTimeMillis());
1208
1209         sendHelper.sendReceiptMessage(receiptMessage, canonicalizeAndResolveRecipient(sender));
1210     }
1211
1212     public void sendViewedReceipt(
1213             String sender, List<Long> messageIds
1214     ) throws IOException, UntrustedIdentityException, InvalidNumberException {
1215         var receiptMessage = new SignalServiceReceiptMessage(SignalServiceReceiptMessage.Type.VIEWED,
1216                 messageIds,
1217                 System.currentTimeMillis());
1218
1219         sendHelper.sendReceiptMessage(receiptMessage, canonicalizeAndResolveRecipient(sender));
1220     }
1221
1222     void sendDeliveryReceipt(
1223             SignalServiceAddress remoteAddress, List<Long> messageIds
1224     ) throws IOException, UntrustedIdentityException {
1225         var receiptMessage = new SignalServiceReceiptMessage(SignalServiceReceiptMessage.Type.DELIVERY,
1226                 messageIds,
1227                 System.currentTimeMillis());
1228
1229         sendHelper.sendReceiptMessage(receiptMessage, resolveRecipient(remoteAddress));
1230     }
1231
1232     public Pair<Long, List<SendMessageResult>> sendMessage(
1233             String messageText, List<String> attachments, List<String> recipients
1234     ) throws IOException, AttachmentInvalidException, InvalidNumberException {
1235         final var messageBuilder = createMessageBuilder().withBody(messageText);
1236         if (attachments != null) {
1237             var attachmentStreams = AttachmentUtils.getSignalServiceAttachments(attachments);
1238
1239             // Upload attachments here, so we only upload once even for multiple recipients
1240             var messageSender = dependencies.getMessageSender();
1241             var attachmentPointers = new ArrayList<SignalServiceAttachment>(attachmentStreams.size());
1242             for (var attachment : attachmentStreams) {
1243                 if (attachment.isStream()) {
1244                     attachmentPointers.add(messageSender.uploadAttachment(attachment.asStream()));
1245                 } else if (attachment.isPointer()) {
1246                     attachmentPointers.add(attachment.asPointer());
1247                 }
1248             }
1249
1250             messageBuilder.withAttachments(attachmentPointers);
1251         }
1252         return sendHelper.sendMessage(messageBuilder, getRecipientIds(recipients));
1253     }
1254
1255     public Pair<Long, SendMessageResult> sendSelfMessage(
1256             String messageText, List<String> attachments
1257     ) throws IOException, AttachmentInvalidException {
1258         final var messageBuilder = createMessageBuilder().withBody(messageText);
1259         if (attachments != null) {
1260             messageBuilder.withAttachments(AttachmentUtils.getSignalServiceAttachments(attachments));
1261         }
1262         return sendHelper.sendSelfMessage(messageBuilder);
1263     }
1264
1265     public Pair<Long, List<SendMessageResult>> sendRemoteDeleteMessage(
1266             long targetSentTimestamp, List<String> recipients
1267     ) throws IOException, InvalidNumberException {
1268         var delete = new SignalServiceDataMessage.RemoteDelete(targetSentTimestamp);
1269         final var messageBuilder = createMessageBuilder().withRemoteDelete(delete);
1270         return sendHelper.sendMessage(messageBuilder, getRecipientIds(recipients));
1271     }
1272
1273     public Pair<Long, List<SendMessageResult>> sendGroupRemoteDeleteMessage(
1274             long targetSentTimestamp, GroupId groupId
1275     ) throws IOException, NotAGroupMemberException, GroupNotFoundException {
1276         var delete = new SignalServiceDataMessage.RemoteDelete(targetSentTimestamp);
1277         final var messageBuilder = createMessageBuilder().withRemoteDelete(delete);
1278         return sendHelper.sendAsGroupMessage(messageBuilder, groupId);
1279     }
1280
1281     public Pair<Long, List<SendMessageResult>> sendMessageReaction(
1282             String emoji, boolean remove, String targetAuthor, long targetSentTimestamp, List<String> recipients
1283     ) throws IOException, InvalidNumberException {
1284         var targetAuthorRecipientId = canonicalizeAndResolveRecipient(targetAuthor);
1285         var reaction = new SignalServiceDataMessage.Reaction(emoji,
1286                 remove,
1287                 resolveSignalServiceAddress(targetAuthorRecipientId),
1288                 targetSentTimestamp);
1289         final var messageBuilder = createMessageBuilder().withReaction(reaction);
1290         return sendHelper.sendMessage(messageBuilder, getRecipientIds(recipients));
1291     }
1292
1293     public Pair<Long, List<SendMessageResult>> sendEndSessionMessage(List<String> recipients) throws IOException, InvalidNumberException {
1294         var messageBuilder = createMessageBuilder().asEndSessionMessage();
1295
1296         final var recipientIds = getRecipientIds(recipients);
1297         try {
1298             return sendHelper.sendMessage(messageBuilder, recipientIds);
1299         } finally {
1300             for (var recipientId : recipientIds) {
1301                 handleEndSession(recipientId);
1302             }
1303         }
1304     }
1305
1306     void renewSession(RecipientId recipientId) throws IOException {
1307         account.getSessionStore().archiveSessions(recipientId);
1308         if (!recipientId.equals(getSelfRecipientId())) {
1309             sendHelper.sendNullMessage(recipientId);
1310         }
1311     }
1312
1313     public void setContactName(String number, String name) throws InvalidNumberException, NotMasterDeviceException {
1314         if (!account.isMasterDevice()) {
1315             throw new NotMasterDeviceException();
1316         }
1317         final var recipientId = canonicalizeAndResolveRecipient(number);
1318         var contact = account.getContactStore().getContact(recipientId);
1319         final var builder = contact == null ? Contact.newBuilder() : Contact.newBuilder(contact);
1320         account.getContactStore().storeContact(recipientId, builder.withName(name).build());
1321     }
1322
1323     public void setContactBlocked(
1324             String number, boolean blocked
1325     ) throws InvalidNumberException, NotMasterDeviceException {
1326         if (!account.isMasterDevice()) {
1327             throw new NotMasterDeviceException();
1328         }
1329         setContactBlocked(canonicalizeAndResolveRecipient(number), blocked);
1330     }
1331
1332     private void setContactBlocked(RecipientId recipientId, boolean blocked) {
1333         var contact = account.getContactStore().getContact(recipientId);
1334         final var builder = contact == null ? Contact.newBuilder() : Contact.newBuilder(contact);
1335         account.getContactStore().storeContact(recipientId, builder.withBlocked(blocked).build());
1336     }
1337
1338     public void setGroupBlocked(final GroupId groupId, final boolean blocked) throws GroupNotFoundException {
1339         var group = getGroup(groupId);
1340         if (group == null) {
1341             throw new GroupNotFoundException(groupId);
1342         }
1343
1344         group.setBlocked(blocked);
1345         account.getGroupStore().updateGroup(group);
1346     }
1347
1348     private void setExpirationTimer(RecipientId recipientId, int messageExpirationTimer) {
1349         var contact = account.getContactStore().getContact(recipientId);
1350         if (contact != null && contact.getMessageExpirationTime() == messageExpirationTimer) {
1351             return;
1352         }
1353         final var builder = contact == null ? Contact.newBuilder() : Contact.newBuilder(contact);
1354         account.getContactStore()
1355                 .storeContact(recipientId, builder.withMessageExpirationTime(messageExpirationTimer).build());
1356     }
1357
1358     private void sendExpirationTimerUpdate(RecipientId recipientId) throws IOException {
1359         final var messageBuilder = createMessageBuilder().asExpirationUpdate();
1360         sendHelper.sendMessage(messageBuilder, Set.of(recipientId));
1361     }
1362
1363     /**
1364      * Change the expiration timer for a contact
1365      */
1366     public void setExpirationTimer(
1367             String number, int messageExpirationTimer
1368     ) throws IOException, InvalidNumberException {
1369         var recipientId = canonicalizeAndResolveRecipient(number);
1370         setExpirationTimer(recipientId, messageExpirationTimer);
1371         sendExpirationTimerUpdate(recipientId);
1372     }
1373
1374     /**
1375      * Change the expiration timer for a group
1376      */
1377     private void setExpirationTimer(
1378             GroupInfoV1 groupInfoV1, int messageExpirationTimer
1379     ) throws NotAGroupMemberException, GroupNotFoundException, IOException {
1380         groupInfoV1.messageExpirationTime = messageExpirationTimer;
1381         account.getGroupStore().updateGroup(groupInfoV1);
1382         sendExpirationTimerUpdate(groupInfoV1.getGroupId());
1383     }
1384
1385     private void sendExpirationTimerUpdate(GroupIdV1 groupId) throws IOException, NotAGroupMemberException, GroupNotFoundException {
1386         final var messageBuilder = createMessageBuilder().asExpirationUpdate();
1387         sendHelper.sendAsGroupMessage(messageBuilder, groupId);
1388     }
1389
1390     /**
1391      * Upload the sticker pack from path.
1392      *
1393      * @param path Path can be a path to a manifest.json file or to a zip file that contains a manifest.json file
1394      * @return if successful, returns the URL to install the sticker pack in the signal app
1395      */
1396     public String uploadStickerPack(File path) throws IOException, StickerPackInvalidException {
1397         var manifest = StickerUtils.getSignalServiceStickerManifestUpload(path);
1398
1399         var messageSender = dependencies.getMessageSender();
1400
1401         var packKey = KeyUtils.createStickerUploadKey();
1402         var packIdString = messageSender.uploadStickerManifest(manifest, packKey);
1403         var packId = StickerPackId.deserialize(Hex.fromStringCondensed(packIdString));
1404
1405         var sticker = new Sticker(packId, packKey);
1406         account.getStickerStore().updateSticker(sticker);
1407
1408         try {
1409             return new URI("https",
1410                     "signal.art",
1411                     "/addstickers/",
1412                     "pack_id="
1413                             + URLEncoder.encode(Hex.toStringCondensed(packId.serialize()), StandardCharsets.UTF_8)
1414                             + "&pack_key="
1415                             + URLEncoder.encode(Hex.toStringCondensed(packKey), StandardCharsets.UTF_8)).toString();
1416         } catch (URISyntaxException e) {
1417             throw new AssertionError(e);
1418         }
1419     }
1420
1421     public void requestAllSyncData() throws IOException {
1422         requestSyncGroups();
1423         requestSyncContacts();
1424         requestSyncBlocked();
1425         requestSyncConfiguration();
1426         requestSyncKeys();
1427     }
1428
1429     private void requestSyncGroups() throws IOException {
1430         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1431                 .setType(SignalServiceProtos.SyncMessage.Request.Type.GROUPS)
1432                 .build();
1433         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1434         sendHelper.sendSyncMessage(message);
1435     }
1436
1437     private void requestSyncContacts() throws IOException {
1438         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1439                 .setType(SignalServiceProtos.SyncMessage.Request.Type.CONTACTS)
1440                 .build();
1441         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1442         sendHelper.sendSyncMessage(message);
1443     }
1444
1445     private void requestSyncBlocked() throws IOException {
1446         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1447                 .setType(SignalServiceProtos.SyncMessage.Request.Type.BLOCKED)
1448                 .build();
1449         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1450         sendHelper.sendSyncMessage(message);
1451     }
1452
1453     private void requestSyncConfiguration() throws IOException {
1454         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1455                 .setType(SignalServiceProtos.SyncMessage.Request.Type.CONFIGURATION)
1456                 .build();
1457         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1458         sendHelper.sendSyncMessage(message);
1459     }
1460
1461     private void requestSyncKeys() throws IOException {
1462         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1463                 .setType(SignalServiceProtos.SyncMessage.Request.Type.KEYS)
1464                 .build();
1465         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1466         sendHelper.sendSyncMessage(message);
1467     }
1468
1469     private byte[] getSenderCertificate() {
1470         byte[] certificate;
1471         try {
1472             if (account.isPhoneNumberShared()) {
1473                 certificate = dependencies.getAccountManager().getSenderCertificate();
1474             } else {
1475                 certificate = dependencies.getAccountManager().getSenderCertificateForPhoneNumberPrivacy();
1476             }
1477         } catch (IOException e) {
1478             logger.warn("Failed to get sender certificate, ignoring: {}", e.getMessage());
1479             return null;
1480         }
1481         // TODO cache for a day
1482         return certificate;
1483     }
1484
1485     private Set<RecipientId> getRecipientIds(Collection<String> numbers) throws InvalidNumberException {
1486         final var signalServiceAddresses = new HashSet<SignalServiceAddress>(numbers.size());
1487         final var addressesMissingUuid = new HashSet<SignalServiceAddress>();
1488
1489         for (var number : numbers) {
1490             final var resolvedAddress = resolveSignalServiceAddress(canonicalizeAndResolveRecipient(number));
1491             if (resolvedAddress.getUuid().isPresent()) {
1492                 signalServiceAddresses.add(resolvedAddress);
1493             } else {
1494                 addressesMissingUuid.add(resolvedAddress);
1495             }
1496         }
1497
1498         final var numbersMissingUuid = addressesMissingUuid.stream()
1499                 .map(a -> a.getNumber().get())
1500                 .collect(Collectors.toSet());
1501         Map<String, UUID> registeredUsers;
1502         try {
1503             registeredUsers = getRegisteredUsers(numbersMissingUuid);
1504         } catch (IOException e) {
1505             logger.warn("Failed to resolve uuids from server, ignoring: {}", e.getMessage());
1506             registeredUsers = Map.of();
1507         }
1508
1509         for (var address : addressesMissingUuid) {
1510             final var number = address.getNumber().get();
1511             if (registeredUsers.containsKey(number)) {
1512                 final var newAddress = resolveSignalServiceAddress(resolveRecipientTrusted(new SignalServiceAddress(
1513                         registeredUsers.get(number),
1514                         number)));
1515                 signalServiceAddresses.add(newAddress);
1516             } else {
1517                 signalServiceAddresses.add(address);
1518             }
1519         }
1520
1521         return signalServiceAddresses.stream().map(this::resolveRecipient).collect(Collectors.toSet());
1522     }
1523
1524     private RecipientId refreshRegisteredUser(RecipientId recipientId) throws IOException {
1525         final var address = resolveSignalServiceAddress(recipientId);
1526         if (!address.getNumber().isPresent()) {
1527             return recipientId;
1528         }
1529         final var number = address.getNumber().get();
1530         final var uuidMap = getRegisteredUsers(Set.of(number));
1531         return resolveRecipientTrusted(new SignalServiceAddress(uuidMap.getOrDefault(number, null), number));
1532     }
1533
1534     private Map<String, UUID> getRegisteredUsers(final Set<String> numbers) throws IOException {
1535         try {
1536             return dependencies.getAccountManager()
1537                     .getRegisteredUsers(ServiceConfig.getIasKeyStore(),
1538                             numbers,
1539                             serviceEnvironmentConfig.getCdsMrenclave());
1540         } catch (Quote.InvalidQuoteFormatException | UnauthenticatedQuoteException | SignatureException | UnauthenticatedResponseException | InvalidKeyException e) {
1541             throw new IOException(e);
1542         }
1543     }
1544
1545     public void sendTypingMessage(
1546             TypingAction action, Set<String> recipients
1547     ) throws IOException, UntrustedIdentityException, InvalidNumberException {
1548         final var timestamp = System.currentTimeMillis();
1549         var message = new SignalServiceTypingMessage(action.toSignalService(), timestamp, Optional.absent());
1550         sendHelper.sendTypingMessage(message, getRecipientIds(recipients));
1551     }
1552
1553     public void sendGroupTypingMessage(
1554             TypingAction action, GroupId groupId
1555     ) throws IOException, NotAGroupMemberException, GroupNotFoundException {
1556         final var timestamp = System.currentTimeMillis();
1557         final var message = new SignalServiceTypingMessage(action.toSignalService(),
1558                 timestamp,
1559                 Optional.of(groupId.serialize()));
1560         sendHelper.sendGroupTypingMessage(message, groupId);
1561     }
1562
1563     private SignalServiceDataMessage.Builder createMessageBuilder() {
1564         final var timestamp = System.currentTimeMillis();
1565
1566         var messageBuilder = SignalServiceDataMessage.newBuilder();
1567         messageBuilder.withTimestamp(timestamp);
1568         return messageBuilder;
1569     }
1570
1571     private SignalServiceContent decryptMessage(SignalServiceEnvelope envelope) throws InvalidMetadataMessageException, ProtocolInvalidMessageException, ProtocolDuplicateMessageException, ProtocolLegacyMessageException, ProtocolInvalidKeyIdException, InvalidMetadataVersionException, ProtocolInvalidVersionException, ProtocolNoSessionException, ProtocolInvalidKeyException, SelfSendException, UnsupportedDataMessageException, ProtocolUntrustedIdentityException, InvalidMessageStructureException {
1572         return dependencies.getCipher().decrypt(envelope);
1573     }
1574
1575     private void handleEndSession(RecipientId recipientId) {
1576         account.getSessionStore().deleteAllSessions(recipientId);
1577     }
1578
1579     private List<HandleAction> handleSignalServiceDataMessage(
1580             SignalServiceDataMessage message,
1581             boolean isSync,
1582             SignalServiceAddress source,
1583             SignalServiceAddress destination,
1584             boolean ignoreAttachments
1585     ) {
1586         var actions = new ArrayList<HandleAction>();
1587         if (message.getGroupContext().isPresent()) {
1588             if (message.getGroupContext().get().getGroupV1().isPresent()) {
1589                 var groupInfo = message.getGroupContext().get().getGroupV1().get();
1590                 var groupId = GroupId.v1(groupInfo.getGroupId());
1591                 var group = getGroup(groupId);
1592                 if (group == null || group instanceof GroupInfoV1) {
1593                     var groupV1 = (GroupInfoV1) group;
1594                     switch (groupInfo.getType()) {
1595                         case UPDATE: {
1596                             if (groupV1 == null) {
1597                                 groupV1 = new GroupInfoV1(groupId);
1598                             }
1599
1600                             if (groupInfo.getAvatar().isPresent()) {
1601                                 var avatar = groupInfo.getAvatar().get();
1602                                 downloadGroupAvatar(avatar, groupV1.getGroupId());
1603                             }
1604
1605                             if (groupInfo.getName().isPresent()) {
1606                                 groupV1.name = groupInfo.getName().get();
1607                             }
1608
1609                             if (groupInfo.getMembers().isPresent()) {
1610                                 groupV1.addMembers(groupInfo.getMembers()
1611                                         .get()
1612                                         .stream()
1613                                         .map(this::resolveRecipient)
1614                                         .collect(Collectors.toSet()));
1615                             }
1616
1617                             account.getGroupStore().updateGroup(groupV1);
1618                             break;
1619                         }
1620                         case DELIVER:
1621                             if (groupV1 == null && !isSync) {
1622                                 actions.add(new SendGroupInfoRequestAction(source, groupId));
1623                             }
1624                             break;
1625                         case QUIT: {
1626                             if (groupV1 != null) {
1627                                 groupV1.removeMember(resolveRecipient(source));
1628                                 account.getGroupStore().updateGroup(groupV1);
1629                             }
1630                             break;
1631                         }
1632                         case REQUEST_INFO:
1633                             if (groupV1 != null && !isSync) {
1634                                 actions.add(new SendGroupInfoAction(source, groupV1.getGroupId()));
1635                             }
1636                             break;
1637                     }
1638                 } else {
1639                     // Received a group v1 message for a v2 group
1640                 }
1641             }
1642             if (message.getGroupContext().get().getGroupV2().isPresent()) {
1643                 final var groupContext = message.getGroupContext().get().getGroupV2().get();
1644                 final var groupMasterKey = groupContext.getMasterKey();
1645
1646                 getOrMigrateGroup(groupMasterKey,
1647                         groupContext.getRevision(),
1648                         groupContext.hasSignedGroupChange() ? groupContext.getSignedGroupChange() : null);
1649             }
1650         }
1651
1652         final var conversationPartnerAddress = isSync ? destination : source;
1653         if (conversationPartnerAddress != null && message.isEndSession()) {
1654             handleEndSession(resolveRecipient(conversationPartnerAddress));
1655         }
1656         if (message.isExpirationUpdate() || message.getBody().isPresent()) {
1657             if (message.getGroupContext().isPresent()) {
1658                 if (message.getGroupContext().get().getGroupV1().isPresent()) {
1659                     var groupInfo = message.getGroupContext().get().getGroupV1().get();
1660                     var group = account.getGroupStore().getOrCreateGroupV1(GroupId.v1(groupInfo.getGroupId()));
1661                     if (group != null) {
1662                         if (group.messageExpirationTime != message.getExpiresInSeconds()) {
1663                             group.messageExpirationTime = message.getExpiresInSeconds();
1664                             account.getGroupStore().updateGroup(group);
1665                         }
1666                     }
1667                 } else if (message.getGroupContext().get().getGroupV2().isPresent()) {
1668                     // disappearing message timer already stored in the DecryptedGroup
1669                 }
1670             } else if (conversationPartnerAddress != null) {
1671                 setExpirationTimer(resolveRecipient(conversationPartnerAddress), message.getExpiresInSeconds());
1672             }
1673         }
1674         if (!ignoreAttachments) {
1675             if (message.getAttachments().isPresent()) {
1676                 for (var attachment : message.getAttachments().get()) {
1677                     downloadAttachment(attachment);
1678                 }
1679             }
1680             if (message.getSharedContacts().isPresent()) {
1681                 for (var contact : message.getSharedContacts().get()) {
1682                     if (contact.getAvatar().isPresent()) {
1683                         downloadAttachment(contact.getAvatar().get().getAttachment());
1684                     }
1685                 }
1686             }
1687         }
1688         if (message.getProfileKey().isPresent() && message.getProfileKey().get().length == 32) {
1689             final ProfileKey profileKey;
1690             try {
1691                 profileKey = new ProfileKey(message.getProfileKey().get());
1692             } catch (InvalidInputException e) {
1693                 throw new AssertionError(e);
1694             }
1695             if (source.matches(account.getSelfAddress())) {
1696                 this.account.setProfileKey(profileKey);
1697             }
1698             this.account.getProfileStore().storeProfileKey(resolveRecipient(source), profileKey);
1699         }
1700         if (message.getPreviews().isPresent()) {
1701             final var previews = message.getPreviews().get();
1702             for (var preview : previews) {
1703                 if (preview.getImage().isPresent()) {
1704                     downloadAttachment(preview.getImage().get());
1705                 }
1706             }
1707         }
1708         if (message.getQuote().isPresent()) {
1709             final var quote = message.getQuote().get();
1710
1711             for (var quotedAttachment : quote.getAttachments()) {
1712                 final var thumbnail = quotedAttachment.getThumbnail();
1713                 if (thumbnail != null) {
1714                     downloadAttachment(thumbnail);
1715                 }
1716             }
1717         }
1718         if (message.getSticker().isPresent()) {
1719             final var messageSticker = message.getSticker().get();
1720             final var stickerPackId = StickerPackId.deserialize(messageSticker.getPackId());
1721             var sticker = account.getStickerStore().getSticker(stickerPackId);
1722             if (sticker == null) {
1723                 sticker = new Sticker(stickerPackId, messageSticker.getPackKey());
1724                 account.getStickerStore().updateSticker(sticker);
1725             }
1726             enqueueJob(new RetrieveStickerPackJob(stickerPackId, messageSticker.getPackKey()));
1727         }
1728         return actions;
1729     }
1730
1731     private GroupInfoV2 getOrMigrateGroup(
1732             final GroupMasterKey groupMasterKey, final int revision, final byte[] signedGroupChange
1733     ) {
1734         final var groupSecretParams = GroupSecretParams.deriveFromMasterKey(groupMasterKey);
1735
1736         var groupId = GroupUtils.getGroupIdV2(groupSecretParams);
1737         var groupInfo = getGroup(groupId);
1738         final GroupInfoV2 groupInfoV2;
1739         if (groupInfo instanceof GroupInfoV1) {
1740             // Received a v2 group message for a v1 group, we need to locally migrate the group
1741             account.getGroupStore().deleteGroupV1(((GroupInfoV1) groupInfo).getGroupId());
1742             groupInfoV2 = new GroupInfoV2(groupId, groupMasterKey);
1743             logger.info("Locally migrated group {} to group v2, id: {}",
1744                     groupInfo.getGroupId().toBase64(),
1745                     groupInfoV2.getGroupId().toBase64());
1746         } else if (groupInfo instanceof GroupInfoV2) {
1747             groupInfoV2 = (GroupInfoV2) groupInfo;
1748         } else {
1749             groupInfoV2 = new GroupInfoV2(groupId, groupMasterKey);
1750         }
1751
1752         if (groupInfoV2.getGroup() == null || groupInfoV2.getGroup().getRevision() < revision) {
1753             DecryptedGroup group = null;
1754             if (signedGroupChange != null
1755                     && groupInfoV2.getGroup() != null
1756                     && groupInfoV2.getGroup().getRevision() + 1 == revision) {
1757                 group = groupV2Helper.getUpdatedDecryptedGroup(groupInfoV2.getGroup(),
1758                         signedGroupChange,
1759                         groupMasterKey);
1760             }
1761             if (group == null) {
1762                 group = groupV2Helper.getDecryptedGroup(groupSecretParams);
1763             }
1764             if (group != null) {
1765                 storeProfileKeysFromMembers(group);
1766                 final var avatar = group.getAvatar();
1767                 if (avatar != null && !avatar.isEmpty()) {
1768                     downloadGroupAvatar(groupId, groupSecretParams, avatar);
1769                 }
1770             }
1771             groupInfoV2.setGroup(group, this::resolveRecipient);
1772             account.getGroupStore().updateGroup(groupInfoV2);
1773         }
1774
1775         return groupInfoV2;
1776     }
1777
1778     private void storeProfileKeysFromMembers(final DecryptedGroup group) {
1779         for (var member : group.getMembersList()) {
1780             final var uuid = UuidUtil.parseOrThrow(member.getUuid().toByteArray());
1781             final var recipientId = account.getRecipientStore().resolveRecipient(uuid);
1782             try {
1783                 account.getProfileStore()
1784                         .storeProfileKey(recipientId, new ProfileKey(member.getProfileKey().toByteArray()));
1785             } catch (InvalidInputException ignored) {
1786             }
1787         }
1788     }
1789
1790     private void retryFailedReceivedMessages(ReceiveMessageHandler handler, boolean ignoreAttachments) {
1791         Set<HandleAction> queuedActions = new HashSet<>();
1792         for (var cachedMessage : account.getMessageCache().getCachedMessages()) {
1793             var actions = retryFailedReceivedMessage(handler, ignoreAttachments, cachedMessage);
1794             if (actions != null) {
1795                 queuedActions.addAll(actions);
1796             }
1797         }
1798         handleQueuedActions(queuedActions);
1799     }
1800
1801     private List<HandleAction> retryFailedReceivedMessage(
1802             final ReceiveMessageHandler handler, final boolean ignoreAttachments, final CachedMessage cachedMessage
1803     ) {
1804         var envelope = cachedMessage.loadEnvelope();
1805         if (envelope == null) {
1806             return null;
1807         }
1808         SignalServiceContent content = null;
1809         List<HandleAction> actions = null;
1810         if (!envelope.isReceipt()) {
1811             try {
1812                 content = decryptMessage(envelope);
1813             } catch (ProtocolUntrustedIdentityException e) {
1814                 if (!envelope.hasSource()) {
1815                     final var identifier = e.getSender();
1816                     final var recipientId = resolveRecipient(identifier);
1817                     try {
1818                         account.getMessageCache().replaceSender(cachedMessage, recipientId);
1819                     } catch (IOException ioException) {
1820                         logger.warn("Failed to move cached message to recipient folder: {}", ioException.getMessage());
1821                     }
1822                 }
1823                 return null;
1824             } catch (Exception er) {
1825                 // All other errors are not recoverable, so delete the cached message
1826                 cachedMessage.delete();
1827                 return null;
1828             }
1829             actions = handleMessage(envelope, content, ignoreAttachments);
1830         }
1831         handler.handleMessage(envelope, content, null);
1832         cachedMessage.delete();
1833         return actions;
1834     }
1835
1836     public void receiveMessages(
1837             long timeout,
1838             TimeUnit unit,
1839             boolean returnOnTimeout,
1840             boolean ignoreAttachments,
1841             ReceiveMessageHandler handler
1842     ) throws IOException {
1843         retryFailedReceivedMessages(handler, ignoreAttachments);
1844
1845         Set<HandleAction> queuedActions = new HashSet<>();
1846
1847         final var signalWebSocket = dependencies.getSignalWebSocket();
1848         signalWebSocket.connect();
1849
1850         var hasCaughtUpWithOldMessages = false;
1851
1852         while (!Thread.interrupted()) {
1853             SignalServiceEnvelope envelope;
1854             SignalServiceContent content = null;
1855             Exception exception = null;
1856             final CachedMessage[] cachedMessage = {null};
1857             account.setLastReceiveTimestamp(System.currentTimeMillis());
1858             logger.debug("Checking for new message from server");
1859             try {
1860                 var result = signalWebSocket.readOrEmpty(unit.toMillis(timeout), envelope1 -> {
1861                     final var recipientId = envelope1.hasSource()
1862                             ? resolveRecipient(envelope1.getSourceIdentifier())
1863                             : null;
1864                     // store message on disk, before acknowledging receipt to the server
1865                     cachedMessage[0] = account.getMessageCache().cacheMessage(envelope1, recipientId);
1866                 });
1867                 logger.debug("New message received from server");
1868                 if (result.isPresent()) {
1869                     envelope = result.get();
1870                 } else {
1871                     // Received indicator that server queue is empty
1872                     hasCaughtUpWithOldMessages = true;
1873
1874                     handleQueuedActions(queuedActions);
1875                     queuedActions.clear();
1876
1877                     // Continue to wait another timeout for new messages
1878                     continue;
1879                 }
1880             } catch (AssertionError e) {
1881                 if (e.getCause() instanceof InterruptedException) {
1882                     Thread.currentThread().interrupt();
1883                     break;
1884                 } else {
1885                     throw e;
1886                 }
1887             } catch (WebSocketUnavailableException e) {
1888                 logger.debug("Pipe unexpectedly unavailable, connecting");
1889                 signalWebSocket.connect();
1890                 continue;
1891             } catch (TimeoutException e) {
1892                 if (returnOnTimeout) return;
1893                 continue;
1894             }
1895
1896             if (envelope.hasSource()) {
1897                 // Store uuid if we don't have it already
1898                 // address/uuid in envelope is sent by server
1899                 resolveRecipientTrusted(envelope.getSourceAddress());
1900             }
1901             if (!envelope.isReceipt()) {
1902                 try {
1903                     content = decryptMessage(envelope);
1904                 } catch (Exception e) {
1905                     exception = e;
1906                 }
1907                 if (!envelope.hasSource() && content != null) {
1908                     // Store uuid if we don't have it already
1909                     // address/uuid is validated by unidentified sender certificate
1910                     resolveRecipientTrusted(content.getSender());
1911                 }
1912                 var actions = handleMessage(envelope, content, ignoreAttachments);
1913                 if (exception instanceof ProtocolInvalidMessageException) {
1914                     final var sender = resolveRecipient(((ProtocolInvalidMessageException) exception).getSender());
1915                     logger.debug("Received invalid message, queuing renew session action.");
1916                     actions.add(new RenewSessionAction(sender));
1917                 }
1918                 if (hasCaughtUpWithOldMessages) {
1919                     for (var action : actions) {
1920                         try {
1921                             action.execute(this);
1922                         } catch (Throwable e) {
1923                             if (e instanceof AssertionError && e.getCause() instanceof InterruptedException) {
1924                                 Thread.currentThread().interrupt();
1925                             }
1926                             logger.warn("Message action failed.", e);
1927                         }
1928                     }
1929                 } else {
1930                     queuedActions.addAll(actions);
1931                 }
1932             }
1933             final var notAllowedToSendToGroup = isNotAllowedToSendToGroup(envelope, content);
1934             if (isMessageBlocked(envelope, content)) {
1935                 logger.info("Ignoring a message from blocked user/group: {}", envelope.getTimestamp());
1936             } else if (notAllowedToSendToGroup) {
1937                 logger.info("Ignoring a group message from an unauthorized sender (no member or admin): {} {}",
1938                         (envelope.hasSource() ? envelope.getSourceAddress() : content.getSender()).getIdentifier(),
1939                         envelope.getTimestamp());
1940             } else {
1941                 handler.handleMessage(envelope, content, exception);
1942             }
1943             if (cachedMessage[0] != null) {
1944                 if (exception instanceof ProtocolUntrustedIdentityException) {
1945                     final var identifier = ((ProtocolUntrustedIdentityException) exception).getSender();
1946                     final var recipientId = resolveRecipient(identifier);
1947                     queuedActions.add(new RetrieveProfileAction(recipientId));
1948                     if (!envelope.hasSource()) {
1949                         try {
1950                             cachedMessage[0] = account.getMessageCache().replaceSender(cachedMessage[0], recipientId);
1951                         } catch (IOException ioException) {
1952                             logger.warn("Failed to move cached message to recipient folder: {}",
1953                                     ioException.getMessage());
1954                         }
1955                     }
1956                 } else {
1957                     cachedMessage[0].delete();
1958                 }
1959             }
1960         }
1961         handleQueuedActions(queuedActions);
1962     }
1963
1964     private void handleQueuedActions(final Set<HandleAction> queuedActions) {
1965         for (var action : queuedActions) {
1966             try {
1967                 action.execute(this);
1968             } catch (Throwable e) {
1969                 if (e instanceof AssertionError && e.getCause() instanceof InterruptedException) {
1970                     Thread.currentThread().interrupt();
1971                 }
1972                 logger.warn("Message action failed.", e);
1973             }
1974         }
1975     }
1976
1977     private boolean isMessageBlocked(
1978             SignalServiceEnvelope envelope, SignalServiceContent content
1979     ) {
1980         SignalServiceAddress source;
1981         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1982             source = envelope.getSourceAddress();
1983         } else if (content != null) {
1984             source = content.getSender();
1985         } else {
1986             return false;
1987         }
1988         final var recipientId = resolveRecipient(source);
1989         if (isContactBlocked(recipientId)) {
1990             return true;
1991         }
1992
1993         if (content != null && content.getDataMessage().isPresent()) {
1994             var message = content.getDataMessage().get();
1995             if (message.getGroupContext().isPresent()) {
1996                 var groupId = GroupUtils.getGroupId(message.getGroupContext().get());
1997                 var group = getGroup(groupId);
1998                 if (group != null && group.isBlocked()) {
1999                     return true;
2000                 }
2001             }
2002         }
2003         return false;
2004     }
2005
2006     public boolean isContactBlocked(final String identifier) throws InvalidNumberException {
2007         final var recipientId = canonicalizeAndResolveRecipient(identifier);
2008         return isContactBlocked(recipientId);
2009     }
2010
2011     private boolean isContactBlocked(final RecipientId recipientId) {
2012         var sourceContact = account.getContactStore().getContact(recipientId);
2013         return sourceContact != null && sourceContact.isBlocked();
2014     }
2015
2016     private boolean isNotAllowedToSendToGroup(
2017             SignalServiceEnvelope envelope, SignalServiceContent content
2018     ) {
2019         SignalServiceAddress source;
2020         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
2021             source = envelope.getSourceAddress();
2022         } else if (content != null) {
2023             source = content.getSender();
2024         } else {
2025             return false;
2026         }
2027
2028         if (content == null || !content.getDataMessage().isPresent()) {
2029             return false;
2030         }
2031
2032         var message = content.getDataMessage().get();
2033         if (!message.getGroupContext().isPresent()) {
2034             return false;
2035         }
2036
2037         if (message.getGroupContext().get().getGroupV1().isPresent()) {
2038             var groupInfo = message.getGroupContext().get().getGroupV1().get();
2039             if (groupInfo.getType() == SignalServiceGroup.Type.QUIT) {
2040                 return false;
2041             }
2042         }
2043
2044         var groupId = GroupUtils.getGroupId(message.getGroupContext().get());
2045         var group = getGroup(groupId);
2046         if (group == null) {
2047             return false;
2048         }
2049
2050         final var recipientId = resolveRecipient(source);
2051         return !group.isMember(recipientId) || (
2052                 group.isAnnouncementGroup() && !group.isAdmin(recipientId)
2053         );
2054     }
2055
2056     private List<HandleAction> handleMessage(
2057             SignalServiceEnvelope envelope, SignalServiceContent content, boolean ignoreAttachments
2058     ) {
2059         var actions = new ArrayList<HandleAction>();
2060         if (content != null) {
2061             final SignalServiceAddress sender;
2062             if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
2063                 sender = envelope.getSourceAddress();
2064             } else {
2065                 sender = content.getSender();
2066             }
2067
2068             if (content.getDataMessage().isPresent()) {
2069                 var message = content.getDataMessage().get();
2070
2071                 if (content.isNeedsReceipt()) {
2072                     actions.add(new SendReceiptAction(sender, message.getTimestamp()));
2073                 }
2074
2075                 actions.addAll(handleSignalServiceDataMessage(message,
2076                         false,
2077                         sender,
2078                         account.getSelfAddress(),
2079                         ignoreAttachments));
2080             }
2081             if (content.getSyncMessage().isPresent()) {
2082                 account.setMultiDevice(true);
2083                 var syncMessage = content.getSyncMessage().get();
2084                 if (syncMessage.getSent().isPresent()) {
2085                     var message = syncMessage.getSent().get();
2086                     final var destination = message.getDestination().orNull();
2087                     actions.addAll(handleSignalServiceDataMessage(message.getMessage(),
2088                             true,
2089                             sender,
2090                             destination,
2091                             ignoreAttachments));
2092                 }
2093                 if (syncMessage.getRequest().isPresent() && account.isMasterDevice()) {
2094                     var rm = syncMessage.getRequest().get();
2095                     if (rm.isContactsRequest()) {
2096                         actions.add(SendSyncContactsAction.create());
2097                     }
2098                     if (rm.isGroupsRequest()) {
2099                         actions.add(SendSyncGroupsAction.create());
2100                     }
2101                     if (rm.isBlockedListRequest()) {
2102                         actions.add(SendSyncBlockedListAction.create());
2103                     }
2104                     // TODO Handle rm.isConfigurationRequest(); rm.isKeysRequest();
2105                 }
2106                 if (syncMessage.getGroups().isPresent()) {
2107                     File tmpFile = null;
2108                     try {
2109                         tmpFile = IOUtils.createTempFile();
2110                         final var groupsMessage = syncMessage.getGroups().get();
2111                         try (var attachmentAsStream = retrieveAttachmentAsStream(groupsMessage.asPointer(), tmpFile)) {
2112                             var s = new DeviceGroupsInputStream(attachmentAsStream);
2113                             DeviceGroup g;
2114                             while (true) {
2115                                 try {
2116                                     g = s.read();
2117                                 } catch (IOException e) {
2118                                     logger.warn("Sync groups contained invalid group, ignoring: {}", e.getMessage());
2119                                     continue;
2120                                 }
2121                                 if (g == null) {
2122                                     break;
2123                                 }
2124                                 var syncGroup = account.getGroupStore().getOrCreateGroupV1(GroupId.v1(g.getId()));
2125                                 if (syncGroup != null) {
2126                                     if (g.getName().isPresent()) {
2127                                         syncGroup.name = g.getName().get();
2128                                     }
2129                                     syncGroup.addMembers(g.getMembers()
2130                                             .stream()
2131                                             .map(this::resolveRecipient)
2132                                             .collect(Collectors.toSet()));
2133                                     if (!g.isActive()) {
2134                                         syncGroup.removeMember(account.getSelfRecipientId());
2135                                     } else {
2136                                         // Add ourself to the member set as it's marked as active
2137                                         syncGroup.addMembers(List.of(account.getSelfRecipientId()));
2138                                     }
2139                                     syncGroup.blocked = g.isBlocked();
2140                                     if (g.getColor().isPresent()) {
2141                                         syncGroup.color = g.getColor().get();
2142                                     }
2143
2144                                     if (g.getAvatar().isPresent()) {
2145                                         downloadGroupAvatar(g.getAvatar().get(), syncGroup.getGroupId());
2146                                     }
2147                                     syncGroup.archived = g.isArchived();
2148                                     account.getGroupStore().updateGroup(syncGroup);
2149                                 }
2150                             }
2151                         }
2152                     } catch (Exception e) {
2153                         logger.warn("Failed to handle received sync groups “{}”, ignoring: {}",
2154                                 tmpFile,
2155                                 e.getMessage());
2156                     } finally {
2157                         if (tmpFile != null) {
2158                             try {
2159                                 Files.delete(tmpFile.toPath());
2160                             } catch (IOException e) {
2161                                 logger.warn("Failed to delete received groups temp file “{}”, ignoring: {}",
2162                                         tmpFile,
2163                                         e.getMessage());
2164                             }
2165                         }
2166                     }
2167                 }
2168                 if (syncMessage.getBlockedList().isPresent()) {
2169                     final var blockedListMessage = syncMessage.getBlockedList().get();
2170                     for (var address : blockedListMessage.getAddresses()) {
2171                         setContactBlocked(resolveRecipient(address), true);
2172                     }
2173                     for (var groupId : blockedListMessage.getGroupIds()
2174                             .stream()
2175                             .map(GroupId::unknownVersion)
2176                             .collect(Collectors.toSet())) {
2177                         try {
2178                             setGroupBlocked(groupId, true);
2179                         } catch (GroupNotFoundException e) {
2180                             logger.warn("BlockedListMessage contained groupID that was not found in GroupStore: {}",
2181                                     groupId.toBase64());
2182                         }
2183                     }
2184                 }
2185                 if (syncMessage.getContacts().isPresent()) {
2186                     File tmpFile = null;
2187                     try {
2188                         tmpFile = IOUtils.createTempFile();
2189                         final var contactsMessage = syncMessage.getContacts().get();
2190                         try (var attachmentAsStream = retrieveAttachmentAsStream(contactsMessage.getContactsStream()
2191                                 .asPointer(), tmpFile)) {
2192                             var s = new DeviceContactsInputStream(attachmentAsStream);
2193                             DeviceContact c;
2194                             while (true) {
2195                                 try {
2196                                     c = s.read();
2197                                 } catch (IOException e) {
2198                                     logger.warn("Sync contacts contained invalid contact, ignoring: {}",
2199                                             e.getMessage());
2200                                     continue;
2201                                 }
2202                                 if (c == null) {
2203                                     break;
2204                                 }
2205                                 if (c.getAddress().matches(account.getSelfAddress()) && c.getProfileKey().isPresent()) {
2206                                     account.setProfileKey(c.getProfileKey().get());
2207                                 }
2208                                 final var recipientId = resolveRecipientTrusted(c.getAddress());
2209                                 var contact = account.getContactStore().getContact(recipientId);
2210                                 final var builder = contact == null
2211                                         ? Contact.newBuilder()
2212                                         : Contact.newBuilder(contact);
2213                                 if (c.getName().isPresent()) {
2214                                     builder.withName(c.getName().get());
2215                                 }
2216                                 if (c.getColor().isPresent()) {
2217                                     builder.withColor(c.getColor().get());
2218                                 }
2219                                 if (c.getProfileKey().isPresent()) {
2220                                     account.getProfileStore().storeProfileKey(recipientId, c.getProfileKey().get());
2221                                 }
2222                                 if (c.getVerified().isPresent()) {
2223                                     final var verifiedMessage = c.getVerified().get();
2224                                     account.getIdentityKeyStore()
2225                                             .setIdentityTrustLevel(resolveRecipientTrusted(verifiedMessage.getDestination()),
2226                                                     verifiedMessage.getIdentityKey(),
2227                                                     TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
2228                                 }
2229                                 if (c.getExpirationTimer().isPresent()) {
2230                                     builder.withMessageExpirationTime(c.getExpirationTimer().get());
2231                                 }
2232                                 builder.withBlocked(c.isBlocked());
2233                                 builder.withArchived(c.isArchived());
2234                                 account.getContactStore().storeContact(recipientId, builder.build());
2235
2236                                 if (c.getAvatar().isPresent()) {
2237                                     downloadContactAvatar(c.getAvatar().get(), c.getAddress());
2238                                 }
2239                             }
2240                         }
2241                     } catch (Exception e) {
2242                         logger.warn("Failed to handle received sync contacts “{}”, ignoring: {}",
2243                                 tmpFile,
2244                                 e.getMessage());
2245                     } finally {
2246                         if (tmpFile != null) {
2247                             try {
2248                                 Files.delete(tmpFile.toPath());
2249                             } catch (IOException e) {
2250                                 logger.warn("Failed to delete received contacts temp file “{}”, ignoring: {}",
2251                                         tmpFile,
2252                                         e.getMessage());
2253                             }
2254                         }
2255                     }
2256                 }
2257                 if (syncMessage.getVerified().isPresent()) {
2258                     final var verifiedMessage = syncMessage.getVerified().get();
2259                     account.getIdentityKeyStore()
2260                             .setIdentityTrustLevel(resolveRecipientTrusted(verifiedMessage.getDestination()),
2261                                     verifiedMessage.getIdentityKey(),
2262                                     TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
2263                 }
2264                 if (syncMessage.getStickerPackOperations().isPresent()) {
2265                     final var stickerPackOperationMessages = syncMessage.getStickerPackOperations().get();
2266                     for (var m : stickerPackOperationMessages) {
2267                         if (!m.getPackId().isPresent()) {
2268                             continue;
2269                         }
2270                         final var stickerPackId = StickerPackId.deserialize(m.getPackId().get());
2271                         final var installed = !m.getType().isPresent()
2272                                 || m.getType().get() == StickerPackOperationMessage.Type.INSTALL;
2273
2274                         var sticker = account.getStickerStore().getSticker(stickerPackId);
2275                         if (m.getPackKey().isPresent()) {
2276                             if (sticker == null) {
2277                                 sticker = new Sticker(stickerPackId, m.getPackKey().get());
2278                             }
2279                             if (installed) {
2280                                 enqueueJob(new RetrieveStickerPackJob(stickerPackId, m.getPackKey().get()));
2281                             }
2282                         }
2283
2284                         if (sticker != null) {
2285                             sticker.setInstalled(installed);
2286                             account.getStickerStore().updateSticker(sticker);
2287                         }
2288                     }
2289                 }
2290                 if (syncMessage.getFetchType().isPresent()) {
2291                     switch (syncMessage.getFetchType().get()) {
2292                         case LOCAL_PROFILE:
2293                             getRecipientProfile(account.getSelfRecipientId(), true);
2294                         case STORAGE_MANIFEST:
2295                             // TODO
2296                     }
2297                 }
2298                 if (syncMessage.getKeys().isPresent()) {
2299                     final var keysMessage = syncMessage.getKeys().get();
2300                     if (keysMessage.getStorageService().isPresent()) {
2301                         final var storageKey = keysMessage.getStorageService().get();
2302                         account.setStorageKey(storageKey);
2303                     }
2304                 }
2305                 if (syncMessage.getConfiguration().isPresent()) {
2306                     // TODO
2307                 }
2308             }
2309         }
2310         return actions;
2311     }
2312
2313     private void downloadContactAvatar(SignalServiceAttachment avatar, SignalServiceAddress address) {
2314         try {
2315             avatarStore.storeContactAvatar(address, outputStream -> retrieveAttachment(avatar, outputStream));
2316         } catch (IOException e) {
2317             logger.warn("Failed to download avatar for contact {}, ignoring: {}", address, e.getMessage());
2318         }
2319     }
2320
2321     private void downloadGroupAvatar(SignalServiceAttachment avatar, GroupId groupId) {
2322         try {
2323             avatarStore.storeGroupAvatar(groupId, outputStream -> retrieveAttachment(avatar, outputStream));
2324         } catch (IOException e) {
2325             logger.warn("Failed to download avatar for group {}, ignoring: {}", groupId.toBase64(), e.getMessage());
2326         }
2327     }
2328
2329     private void downloadGroupAvatar(GroupId groupId, GroupSecretParams groupSecretParams, String cdnKey) {
2330         try {
2331             avatarStore.storeGroupAvatar(groupId,
2332                     outputStream -> retrieveGroupV2Avatar(groupSecretParams, cdnKey, outputStream));
2333         } catch (IOException e) {
2334             logger.warn("Failed to download avatar for group {}, ignoring: {}", groupId.toBase64(), e.getMessage());
2335         }
2336     }
2337
2338     private void downloadProfileAvatar(
2339             SignalServiceAddress address, String avatarPath, ProfileKey profileKey
2340     ) {
2341         try {
2342             avatarStore.storeProfileAvatar(address,
2343                     outputStream -> retrieveProfileAvatar(avatarPath, profileKey, outputStream));
2344         } catch (Throwable e) {
2345             if (e instanceof AssertionError && e.getCause() instanceof InterruptedException) {
2346                 Thread.currentThread().interrupt();
2347             }
2348             logger.warn("Failed to download profile avatar, ignoring: {}", e.getMessage());
2349         }
2350     }
2351
2352     public File getAttachmentFile(SignalServiceAttachmentRemoteId attachmentId) {
2353         return attachmentStore.getAttachmentFile(attachmentId);
2354     }
2355
2356     private void downloadAttachment(final SignalServiceAttachment attachment) {
2357         if (!attachment.isPointer()) {
2358             logger.warn("Invalid state, can't store an attachment stream.");
2359         }
2360
2361         var pointer = attachment.asPointer();
2362         if (pointer.getPreview().isPresent()) {
2363             final var preview = pointer.getPreview().get();
2364             try {
2365                 attachmentStore.storeAttachmentPreview(pointer.getRemoteId(),
2366                         outputStream -> outputStream.write(preview, 0, preview.length));
2367             } catch (IOException e) {
2368                 logger.warn("Failed to download attachment preview, ignoring: {}", e.getMessage());
2369             }
2370         }
2371
2372         try {
2373             attachmentStore.storeAttachment(pointer.getRemoteId(),
2374                     outputStream -> retrieveAttachmentPointer(pointer, outputStream));
2375         } catch (IOException e) {
2376             logger.warn("Failed to download attachment ({}), ignoring: {}", pointer.getRemoteId(), e.getMessage());
2377         }
2378     }
2379
2380     private void retrieveGroupV2Avatar(
2381             GroupSecretParams groupSecretParams, String cdnKey, OutputStream outputStream
2382     ) throws IOException {
2383         var groupOperations = dependencies.getGroupsV2Operations().forGroup(groupSecretParams);
2384
2385         var tmpFile = IOUtils.createTempFile();
2386         try (InputStream input = dependencies.getMessageReceiver()
2387                 .retrieveGroupsV2ProfileAvatar(cdnKey, tmpFile, ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
2388             var encryptedData = IOUtils.readFully(input);
2389
2390             var decryptedData = groupOperations.decryptAvatar(encryptedData);
2391             outputStream.write(decryptedData);
2392         } finally {
2393             try {
2394                 Files.delete(tmpFile.toPath());
2395             } catch (IOException e) {
2396                 logger.warn("Failed to delete received group avatar temp file “{}”, ignoring: {}",
2397                         tmpFile,
2398                         e.getMessage());
2399             }
2400         }
2401     }
2402
2403     private void retrieveProfileAvatar(
2404             String avatarPath, ProfileKey profileKey, OutputStream outputStream
2405     ) throws IOException {
2406         var tmpFile = IOUtils.createTempFile();
2407         try (var input = dependencies.getMessageReceiver()
2408                 .retrieveProfileAvatar(avatarPath,
2409                         tmpFile,
2410                         profileKey,
2411                         ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
2412             // Use larger buffer size to prevent AssertionError: Need: 12272 but only have: 8192 ...
2413             IOUtils.copyStream(input, outputStream, (int) ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE);
2414         } finally {
2415             try {
2416                 Files.delete(tmpFile.toPath());
2417             } catch (IOException e) {
2418                 logger.warn("Failed to delete received profile avatar temp file “{}”, ignoring: {}",
2419                         tmpFile,
2420                         e.getMessage());
2421             }
2422         }
2423     }
2424
2425     private void retrieveAttachment(
2426             final SignalServiceAttachment attachment, final OutputStream outputStream
2427     ) throws IOException {
2428         if (attachment.isPointer()) {
2429             var pointer = attachment.asPointer();
2430             retrieveAttachmentPointer(pointer, outputStream);
2431         } else {
2432             var stream = attachment.asStream();
2433             IOUtils.copyStream(stream.getInputStream(), outputStream);
2434         }
2435     }
2436
2437     private void retrieveAttachmentPointer(
2438             SignalServiceAttachmentPointer pointer, OutputStream outputStream
2439     ) throws IOException {
2440         var tmpFile = IOUtils.createTempFile();
2441         try (var input = retrieveAttachmentAsStream(pointer, tmpFile)) {
2442             IOUtils.copyStream(input, outputStream);
2443         } catch (MissingConfigurationException | InvalidMessageException e) {
2444             throw new IOException(e);
2445         } finally {
2446             try {
2447                 Files.delete(tmpFile.toPath());
2448             } catch (IOException e) {
2449                 logger.warn("Failed to delete received attachment temp file “{}”, ignoring: {}",
2450                         tmpFile,
2451                         e.getMessage());
2452             }
2453         }
2454     }
2455
2456     private InputStream retrieveAttachmentAsStream(
2457             SignalServiceAttachmentPointer pointer, File tmpFile
2458     ) throws IOException, InvalidMessageException, MissingConfigurationException {
2459         return dependencies.getMessageReceiver()
2460                 .retrieveAttachment(pointer, tmpFile, ServiceConfig.MAX_ATTACHMENT_SIZE);
2461     }
2462
2463     void sendGroups() throws IOException {
2464         var groupsFile = IOUtils.createTempFile();
2465
2466         try {
2467             try (OutputStream fos = new FileOutputStream(groupsFile)) {
2468                 var out = new DeviceGroupsOutputStream(fos);
2469                 for (var record : getGroups()) {
2470                     if (record instanceof GroupInfoV1) {
2471                         var groupInfo = (GroupInfoV1) record;
2472                         out.write(new DeviceGroup(groupInfo.getGroupId().serialize(),
2473                                 Optional.fromNullable(groupInfo.name),
2474                                 groupInfo.getMembers()
2475                                         .stream()
2476                                         .map(this::resolveSignalServiceAddress)
2477                                         .collect(Collectors.toList()),
2478                                 createGroupAvatarAttachment(groupInfo.getGroupId()),
2479                                 groupInfo.isMember(account.getSelfRecipientId()),
2480                                 Optional.of(groupInfo.messageExpirationTime),
2481                                 Optional.fromNullable(groupInfo.color),
2482                                 groupInfo.blocked,
2483                                 Optional.absent(),
2484                                 groupInfo.archived));
2485                     }
2486                 }
2487             }
2488
2489             if (groupsFile.exists() && groupsFile.length() > 0) {
2490                 try (var groupsFileStream = new FileInputStream(groupsFile)) {
2491                     var attachmentStream = SignalServiceAttachment.newStreamBuilder()
2492                             .withStream(groupsFileStream)
2493                             .withContentType("application/octet-stream")
2494                             .withLength(groupsFile.length())
2495                             .build();
2496
2497                     sendHelper.sendSyncMessage(SignalServiceSyncMessage.forGroups(attachmentStream));
2498                 }
2499             }
2500         } finally {
2501             try {
2502                 Files.delete(groupsFile.toPath());
2503             } catch (IOException e) {
2504                 logger.warn("Failed to delete groups temp file “{}”, ignoring: {}", groupsFile, e.getMessage());
2505             }
2506         }
2507     }
2508
2509     public void sendContacts() throws IOException {
2510         var contactsFile = IOUtils.createTempFile();
2511
2512         try {
2513             try (OutputStream fos = new FileOutputStream(contactsFile)) {
2514                 var out = new DeviceContactsOutputStream(fos);
2515                 for (var contactPair : account.getContactStore().getContacts()) {
2516                     final var recipientId = contactPair.first();
2517                     final var contact = contactPair.second();
2518                     final var address = resolveSignalServiceAddress(recipientId);
2519
2520                     var currentIdentity = account.getIdentityKeyStore().getIdentity(recipientId);
2521                     VerifiedMessage verifiedMessage = null;
2522                     if (currentIdentity != null) {
2523                         verifiedMessage = new VerifiedMessage(address,
2524                                 currentIdentity.getIdentityKey(),
2525                                 currentIdentity.getTrustLevel().toVerifiedState(),
2526                                 currentIdentity.getDateAdded().getTime());
2527                     }
2528
2529                     var profileKey = account.getProfileStore().getProfileKey(recipientId);
2530                     out.write(new DeviceContact(address,
2531                             Optional.fromNullable(contact.getName()),
2532                             createContactAvatarAttachment(address),
2533                             Optional.fromNullable(contact.getColor()),
2534                             Optional.fromNullable(verifiedMessage),
2535                             Optional.fromNullable(profileKey),
2536                             contact.isBlocked(),
2537                             Optional.of(contact.getMessageExpirationTime()),
2538                             Optional.absent(),
2539                             contact.isArchived()));
2540                 }
2541
2542                 if (account.getProfileKey() != null) {
2543                     // Send our own profile key as well
2544                     out.write(new DeviceContact(account.getSelfAddress(),
2545                             Optional.absent(),
2546                             Optional.absent(),
2547                             Optional.absent(),
2548                             Optional.absent(),
2549                             Optional.of(account.getProfileKey()),
2550                             false,
2551                             Optional.absent(),
2552                             Optional.absent(),
2553                             false));
2554                 }
2555             }
2556
2557             if (contactsFile.exists() && contactsFile.length() > 0) {
2558                 try (var contactsFileStream = new FileInputStream(contactsFile)) {
2559                     var attachmentStream = SignalServiceAttachment.newStreamBuilder()
2560                             .withStream(contactsFileStream)
2561                             .withContentType("application/octet-stream")
2562                             .withLength(contactsFile.length())
2563                             .build();
2564
2565                     sendHelper.sendSyncMessage(SignalServiceSyncMessage.forContacts(new ContactsMessage(attachmentStream,
2566                             true)));
2567                 }
2568             }
2569         } finally {
2570             try {
2571                 Files.delete(contactsFile.toPath());
2572             } catch (IOException e) {
2573                 logger.warn("Failed to delete contacts temp file “{}”, ignoring: {}", contactsFile, e.getMessage());
2574             }
2575         }
2576     }
2577
2578     void sendBlockedList() throws IOException {
2579         var addresses = new ArrayList<SignalServiceAddress>();
2580         for (var record : account.getContactStore().getContacts()) {
2581             if (record.second().isBlocked()) {
2582                 addresses.add(resolveSignalServiceAddress(record.first()));
2583             }
2584         }
2585         var groupIds = new ArrayList<byte[]>();
2586         for (var record : getGroups()) {
2587             if (record.isBlocked()) {
2588                 groupIds.add(record.getGroupId().serialize());
2589             }
2590         }
2591         sendHelper.sendSyncMessage(SignalServiceSyncMessage.forBlocked(new BlockedListMessage(addresses, groupIds)));
2592     }
2593
2594     private void sendVerifiedMessage(
2595             SignalServiceAddress destination, IdentityKey identityKey, TrustLevel trustLevel
2596     ) throws IOException {
2597         var verifiedMessage = new VerifiedMessage(destination,
2598                 identityKey,
2599                 trustLevel.toVerifiedState(),
2600                 System.currentTimeMillis());
2601         sendHelper.sendSyncMessage(SignalServiceSyncMessage.forVerified(verifiedMessage));
2602     }
2603
2604     public List<Pair<RecipientId, Contact>> getContacts() {
2605         return account.getContactStore().getContacts();
2606     }
2607
2608     public String getContactOrProfileName(String number) throws InvalidNumberException {
2609         final var recipientId = canonicalizeAndResolveRecipient(number);
2610         final var recipient = account.getRecipientStore().getRecipient(recipientId);
2611         if (recipient == null) {
2612             return null;
2613         }
2614
2615         if (recipient.getContact() != null && !Util.isEmpty(recipient.getContact().getName())) {
2616             return recipient.getContact().getName();
2617         }
2618
2619         if (recipient.getProfile() != null && recipient.getProfile() != null) {
2620             return recipient.getProfile().getDisplayName();
2621         }
2622
2623         return null;
2624     }
2625
2626     public GroupInfo getGroup(GroupId groupId) {
2627         return getGroup(groupId, false);
2628     }
2629
2630     public GroupInfo getGroup(GroupId groupId, boolean forceUpdate) {
2631         final var group = account.getGroupStore().getGroup(groupId);
2632         if (group instanceof GroupInfoV2 && (forceUpdate || ((GroupInfoV2) group).getGroup() == null)) {
2633             final var groupSecretParams = GroupSecretParams.deriveFromMasterKey(((GroupInfoV2) group).getMasterKey());
2634             ((GroupInfoV2) group).setGroup(groupV2Helper.getDecryptedGroup(groupSecretParams), this::resolveRecipient);
2635             account.getGroupStore().updateGroup(group);
2636         }
2637         return group;
2638     }
2639
2640     public List<IdentityInfo> getIdentities() {
2641         return account.getIdentityKeyStore().getIdentities();
2642     }
2643
2644     public List<IdentityInfo> getIdentities(String number) throws InvalidNumberException {
2645         final var identity = account.getIdentityKeyStore().getIdentity(canonicalizeAndResolveRecipient(number));
2646         return identity == null ? List.of() : List.of(identity);
2647     }
2648
2649     /**
2650      * Trust this the identity with this fingerprint
2651      *
2652      * @param name        username of the identity
2653      * @param fingerprint Fingerprint
2654      */
2655     public boolean trustIdentityVerified(String name, byte[] fingerprint) throws InvalidNumberException {
2656         var recipientId = canonicalizeAndResolveRecipient(name);
2657         return trustIdentity(recipientId,
2658                 identityKey -> Arrays.equals(identityKey.serialize(), fingerprint),
2659                 TrustLevel.TRUSTED_VERIFIED);
2660     }
2661
2662     /**
2663      * Trust this the identity with this safety number
2664      *
2665      * @param name         username of the identity
2666      * @param safetyNumber Safety number
2667      */
2668     public boolean trustIdentityVerifiedSafetyNumber(String name, String safetyNumber) throws InvalidNumberException {
2669         var recipientId = canonicalizeAndResolveRecipient(name);
2670         var address = account.getRecipientStore().resolveServiceAddress(recipientId);
2671         return trustIdentity(recipientId,
2672                 identityKey -> safetyNumber.equals(computeSafetyNumber(address, identityKey)),
2673                 TrustLevel.TRUSTED_VERIFIED);
2674     }
2675
2676     /**
2677      * Trust this the identity with this scannable safety number
2678      *
2679      * @param name         username of the identity
2680      * @param safetyNumber Scannable safety number
2681      */
2682     public boolean trustIdentityVerifiedSafetyNumber(String name, byte[] safetyNumber) throws InvalidNumberException {
2683         var recipientId = canonicalizeAndResolveRecipient(name);
2684         var address = account.getRecipientStore().resolveServiceAddress(recipientId);
2685         return trustIdentity(recipientId, identityKey -> {
2686             final var fingerprint = computeSafetyNumberFingerprint(address, identityKey);
2687             try {
2688                 return fingerprint != null && fingerprint.getScannableFingerprint().compareTo(safetyNumber);
2689             } catch (FingerprintVersionMismatchException | FingerprintParsingException e) {
2690                 return false;
2691             }
2692         }, TrustLevel.TRUSTED_VERIFIED);
2693     }
2694
2695     /**
2696      * Trust all keys of this identity without verification
2697      *
2698      * @param name username of the identity
2699      */
2700     public boolean trustIdentityAllKeys(String name) throws InvalidNumberException {
2701         var recipientId = canonicalizeAndResolveRecipient(name);
2702         return trustIdentity(recipientId, identityKey -> true, TrustLevel.TRUSTED_UNVERIFIED);
2703     }
2704
2705     private boolean trustIdentity(
2706             RecipientId recipientId, Function<IdentityKey, Boolean> verifier, TrustLevel trustLevel
2707     ) {
2708         var identity = account.getIdentityKeyStore().getIdentity(recipientId);
2709         if (identity == null) {
2710             return false;
2711         }
2712
2713         if (!verifier.apply(identity.getIdentityKey())) {
2714             return false;
2715         }
2716
2717         account.getIdentityKeyStore().setIdentityTrustLevel(recipientId, identity.getIdentityKey(), trustLevel);
2718         try {
2719             var address = account.getRecipientStore().resolveServiceAddress(recipientId);
2720             sendVerifiedMessage(address, identity.getIdentityKey(), trustLevel);
2721         } catch (IOException e) {
2722             logger.warn("Failed to send verification sync message: {}", e.getMessage());
2723         }
2724
2725         return true;
2726     }
2727
2728     private void handleIdentityFailure(
2729             final RecipientId recipientId, final SendMessageResult.IdentityFailure identityFailure
2730     ) {
2731         final var identityKey = identityFailure.getIdentityKey();
2732         if (identityKey != null) {
2733             final var newIdentity = account.getIdentityKeyStore().saveIdentity(recipientId, identityKey, new Date());
2734             if (newIdentity) {
2735                 account.getSessionStore().archiveSessions(recipientId);
2736             }
2737         } else {
2738             // Retrieve profile to get the current identity key from the server
2739             retrieveEncryptedProfile(recipientId);
2740         }
2741     }
2742
2743     public String computeSafetyNumber(SignalServiceAddress theirAddress, IdentityKey theirIdentityKey) {
2744         final Fingerprint fingerprint = computeSafetyNumberFingerprint(theirAddress, theirIdentityKey);
2745         return fingerprint == null ? null : fingerprint.getDisplayableFingerprint().getDisplayText();
2746     }
2747
2748     public byte[] computeSafetyNumberForScanning(SignalServiceAddress theirAddress, IdentityKey theirIdentityKey) {
2749         final Fingerprint fingerprint = computeSafetyNumberFingerprint(theirAddress, theirIdentityKey);
2750         return fingerprint == null ? null : fingerprint.getScannableFingerprint().getSerialized();
2751     }
2752
2753     private Fingerprint computeSafetyNumberFingerprint(
2754             final SignalServiceAddress theirAddress, final IdentityKey theirIdentityKey
2755     ) {
2756         return Utils.computeSafetyNumber(capabilities.isUuid(),
2757                 account.getSelfAddress(),
2758                 getIdentityKeyPair().getPublicKey(),
2759                 theirAddress,
2760                 theirIdentityKey);
2761     }
2762
2763     @Deprecated
2764     public SignalServiceAddress resolveSignalServiceAddress(String identifier) {
2765         var address = Utils.getSignalServiceAddressFromIdentifier(identifier);
2766
2767         return resolveSignalServiceAddress(address);
2768     }
2769
2770     @Deprecated
2771     public SignalServiceAddress resolveSignalServiceAddress(SignalServiceAddress address) {
2772         if (address.matches(account.getSelfAddress())) {
2773             return account.getSelfAddress();
2774         }
2775
2776         return account.getRecipientStore().resolveServiceAddress(address);
2777     }
2778
2779     public SignalServiceAddress resolveSignalServiceAddress(RecipientId recipientId) {
2780         return account.getRecipientStore().resolveServiceAddress(recipientId);
2781     }
2782
2783     private RecipientId canonicalizeAndResolveRecipient(String identifier) throws InvalidNumberException {
2784         var canonicalizedNumber = UuidUtil.isUuid(identifier) ? identifier : canonicalizePhoneNumber(identifier);
2785
2786         return resolveRecipient(canonicalizedNumber);
2787     }
2788
2789     private String canonicalizePhoneNumber(final String number) throws InvalidNumberException {
2790         return PhoneNumberFormatter.formatNumber(number, account.getUsername());
2791     }
2792
2793     private RecipientId resolveRecipient(final String identifier) {
2794         var address = Utils.getSignalServiceAddressFromIdentifier(identifier);
2795
2796         return resolveRecipient(address);
2797     }
2798
2799     public RecipientId resolveRecipient(SignalServiceAddress address) {
2800         return account.getRecipientStore().resolveRecipient(address);
2801     }
2802
2803     private RecipientId resolveRecipientTrusted(SignalServiceAddress address) {
2804         return account.getRecipientStore().resolveRecipientTrusted(address);
2805     }
2806
2807     private void enqueueJob(Job job) {
2808         var context = new Context(account,
2809                 dependencies.getAccountManager(),
2810                 dependencies.getMessageReceiver(),
2811                 stickerPackStore);
2812         job.run(context);
2813     }
2814
2815     @Override
2816     public void close() throws IOException {
2817         close(true);
2818     }
2819
2820     void close(boolean closeAccount) throws IOException {
2821         executor.shutdown();
2822
2823         dependencies.getSignalWebSocket().disconnect();
2824
2825         if (closeAccount && account != null) {
2826             account.close();
2827         }
2828         account = null;
2829     }
2830
2831     public interface ReceiveMessageHandler {
2832
2833         void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent decryptedContent, Throwable e);
2834     }
2835 }