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.config.ServiceConfig;
  21 import org.asamk.signal.manager.config.ServiceEnvironment;
  22 import org.asamk.signal.manager.config.ServiceEnvironmentConfig;
  23 import org.asamk.signal.manager.groups.GroupId;
  24 import org.asamk.signal.manager.groups.GroupIdV1;
  25 import org.asamk.signal.manager.groups.GroupInviteLinkUrl;
  26 import org.asamk.signal.manager.groups.GroupNotFoundException;
  27 import org.asamk.signal.manager.groups.GroupUtils;
  28 import org.asamk.signal.manager.groups.NotAGroupMemberException;
  29 import org.asamk.signal.manager.helper.GroupV2Helper;
  30 import org.asamk.signal.manager.helper.PinHelper;
  31 import org.asamk.signal.manager.helper.ProfileHelper;
  32 import org.asamk.signal.manager.helper.UnidentifiedAccessHelper;
  33 import org.asamk.signal.manager.storage.SignalAccount;
  34 import org.asamk.signal.manager.storage.groups.GroupInfo;
  35 import org.asamk.signal.manager.storage.groups.GroupInfoV1;
  36 import org.asamk.signal.manager.storage.groups.GroupInfoV2;
  37 import org.asamk.signal.manager.storage.identities.IdentityInfo;
  38 import org.asamk.signal.manager.storage.messageCache.CachedMessage;
  39 import org.asamk.signal.manager.storage.recipients.Contact;
  40 import org.asamk.signal.manager.storage.recipients.Profile;
  41 import org.asamk.signal.manager.storage.recipients.RecipientId;
  42 import org.asamk.signal.manager.storage.stickers.Sticker;
  43 import org.asamk.signal.manager.storage.stickers.StickerPackId;
  44 import org.asamk.signal.manager.util.AttachmentUtils;
  45 import org.asamk.signal.manager.util.IOUtils;
  46 import org.asamk.signal.manager.util.KeyUtils;
  47 import org.asamk.signal.manager.util.ProfileUtils;
  48 import org.asamk.signal.manager.util.StickerUtils;
  49 import org.asamk.signal.manager.util.Utils;
  50 import org.signal.libsignal.metadata.InvalidMetadataMessageException;
  51 import org.signal.libsignal.metadata.InvalidMetadataVersionException;
  52 import org.signal.libsignal.metadata.ProtocolDuplicateMessageException;
  53 import org.signal.libsignal.metadata.ProtocolInvalidKeyException;
  54 import org.signal.libsignal.metadata.ProtocolInvalidKeyIdException;
  55 import org.signal.libsignal.metadata.ProtocolInvalidMessageException;
  56 import org.signal.libsignal.metadata.ProtocolInvalidVersionException;
  57 import org.signal.libsignal.metadata.ProtocolLegacyMessageException;
  58 import org.signal.libsignal.metadata.ProtocolNoSessionException;
  59 import org.signal.libsignal.metadata.ProtocolUntrustedIdentityException;
  60 import org.signal.libsignal.metadata.SelfSendException;
  61 import org.signal.libsignal.metadata.certificate.CertificateValidator;
  62 import org.signal.storageservice.protos.groups.GroupChange;
  63 import org.signal.storageservice.protos.groups.local.DecryptedGroup;
  64 import org.signal.zkgroup.InvalidInputException;
  65 import org.signal.zkgroup.VerificationFailedException;
  66 import org.signal.zkgroup.groups.GroupMasterKey;
  67 import org.signal.zkgroup.groups.GroupSecretParams;
  68 import org.signal.zkgroup.profiles.ClientZkProfileOperations;
  69 import org.signal.zkgroup.profiles.ProfileKey;
  70 import org.signal.zkgroup.profiles.ProfileKeyCredential;
  71 import org.slf4j.Logger;
  72 import org.slf4j.LoggerFactory;
  73 import org.whispersystems.libsignal.IdentityKey;
  74 import org.whispersystems.libsignal.IdentityKeyPair;
  75 import org.whispersystems.libsignal.InvalidKeyException;
  76 import org.whispersystems.libsignal.InvalidMessageException;
  77 import org.whispersystems.libsignal.ecc.ECPublicKey;
  78 import org.whispersystems.libsignal.state.PreKeyRecord;
  79 import org.whispersystems.libsignal.state.SignedPreKeyRecord;
  80 import org.whispersystems.libsignal.util.Pair;
  81 import org.whispersystems.libsignal.util.guava.Optional;
  82 import org.whispersystems.signalservice.api.SignalServiceAccountManager;
  83 import org.whispersystems.signalservice.api.SignalServiceMessagePipe;
  84 import org.whispersystems.signalservice.api.SignalServiceMessageReceiver;
  85 import org.whispersystems.signalservice.api.SignalServiceMessageSender;
  86 import org.whispersystems.signalservice.api.SignalSessionLock;
  87 import org.whispersystems.signalservice.api.crypto.SignalServiceCipher;
  88 import org.whispersystems.signalservice.api.crypto.UntrustedIdentityException;
  89 import org.whispersystems.signalservice.api.groupsv2.ClientZkOperations;
  90 import org.whispersystems.signalservice.api.groupsv2.GroupLinkNotActiveException;
  91 import org.whispersystems.signalservice.api.groupsv2.GroupsV2Api;
  92 import org.whispersystems.signalservice.api.groupsv2.GroupsV2AuthorizationString;
  93 import org.whispersystems.signalservice.api.groupsv2.GroupsV2Operations;
  94 import org.whispersystems.signalservice.api.messages.SendMessageResult;
  95 import org.whispersystems.signalservice.api.messages.SignalServiceAttachment;
  96 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentPointer;
  97 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentRemoteId;
  98 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentStream;
  99 import org.whispersystems.signalservice.api.messages.SignalServiceContent;
 100 import org.whispersystems.signalservice.api.messages.SignalServiceDataMessage;
 101 import org.whispersystems.signalservice.api.messages.SignalServiceEnvelope;
 102 import org.whispersystems.signalservice.api.messages.SignalServiceGroup;
 103 import org.whispersystems.signalservice.api.messages.SignalServiceGroupV2;
 104 import org.whispersystems.signalservice.api.messages.SignalServiceReceiptMessage;
 105 import org.whispersystems.signalservice.api.messages.multidevice.BlockedListMessage;
 106 import org.whispersystems.signalservice.api.messages.multidevice.ContactsMessage;
 107 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContact;
 108 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsInputStream;
 109 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsOutputStream;
 110 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroup;
 111 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsInputStream;
 112 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsOutputStream;
 113 import org.whispersystems.signalservice.api.messages.multidevice.RequestMessage;
 114 import org.whispersystems.signalservice.api.messages.multidevice.SentTranscriptMessage;
 115 import org.whispersystems.signalservice.api.messages.multidevice.SignalServiceSyncMessage;
 116 import org.whispersystems.signalservice.api.messages.multidevice.StickerPackOperationMessage;
 117 import org.whispersystems.signalservice.api.messages.multidevice.VerifiedMessage;
 118 import org.whispersystems.signalservice.api.profiles.ProfileAndCredential;
 119 import org.whispersystems.signalservice.api.profiles.SignalServiceProfile;
 120 import org.whispersystems.signalservice.api.push.SignalServiceAddress;
 121 import org.whispersystems.signalservice.api.push.exceptions.MissingConfigurationException;
 122 import org.whispersystems.signalservice.api.push.exceptions.UnregisteredUserException;
 123 import org.whispersystems.signalservice.api.util.DeviceNameUtil;
 124 import org.whispersystems.signalservice.api.util.InvalidNumberException;
 125 import org.whispersystems.signalservice.api.util.PhoneNumberFormatter;
 126 import org.whispersystems.signalservice.api.util.SleepTimer;
 127 import org.whispersystems.signalservice.api.util.UptimeSleepTimer;
 128 import org.whispersystems.signalservice.api.util.UuidUtil;
 129 import org.whispersystems.signalservice.internal.contacts.crypto.Quote;
 130 import org.whispersystems.signalservice.internal.contacts.crypto.UnauthenticatedQuoteException;
 131 import org.whispersystems.signalservice.internal.contacts.crypto.UnauthenticatedResponseException;
 132 import org.whispersystems.signalservice.internal.push.SignalServiceProtos;
 133 import org.whispersystems.signalservice.internal.push.UnsupportedDataMessageException;
 134 import org.whispersystems.signalservice.internal.util.DynamicCredentialsProvider;
 135 import org.whispersystems.signalservice.internal.util.Hex;
 136 import org.whispersystems.signalservice.internal.util.Util;
 137
 138 import java.io.Closeable;
 139 import java.io.File;
 140 import java.io.FileInputStream;
 141 import java.io.FileOutputStream;
 142 import java.io.IOException;
 143 import java.io.InputStream;
 144 import java.io.OutputStream;
 145 import java.net.URI;
 146 import java.net.URISyntaxException;
 147 import java.net.URLEncoder;
 148 import java.nio.charset.StandardCharsets;
 149 import java.nio.file.Files;
 150 import java.security.SignatureException;
 151 import java.util.ArrayList;
 152 import java.util.Arrays;
 153 import java.util.Base64;
 154 import java.util.Collection;
 155 import java.util.Date;
 156 import java.util.HashSet;
 157 import java.util.List;
 158 import java.util.Map;
 159 import java.util.Set;
 160 import java.util.UUID;
 161 import java.util.concurrent.ExecutorService;
 162 import java.util.concurrent.Executors;
 163 import java.util.concurrent.TimeUnit;
 164 import java.util.concurrent.TimeoutException;
 165 import java.util.concurrent.locks.ReentrantLock;
 166 import java.util.function.Function;
 167 import java.util.stream.Collectors;
 168
 169 import static org.asamk.signal.manager.config.ServiceConfig.capabilities;
 170
 171 public class Manager implements Closeable {
 172
 173     private final static Logger logger = LoggerFactory.getLogger(Manager.class);
 174
 175     private final CertificateValidator certificateValidator;
 176
 177     private final ServiceEnvironmentConfig serviceEnvironmentConfig;
 178     private final String userAgent;
 179
 180     private SignalAccount account;
 181     private final SignalServiceAccountManager accountManager;
 182     private final GroupsV2Api groupsV2Api;
 183     private final GroupsV2Operations groupsV2Operations;
 184     private final SignalServiceMessageReceiver messageReceiver;
 185     private final ClientZkProfileOperations clientZkProfileOperations;
 186
 187     private final ExecutorService executor = Executors.newCachedThreadPool();
 188
 189     private SignalServiceMessagePipe messagePipe = null;
 190     private SignalServiceMessagePipe unidentifiedMessagePipe = null;
 191
 192     private final UnidentifiedAccessHelper unidentifiedAccessHelper;
 193     private final ProfileHelper profileHelper;
 194     private final GroupV2Helper groupV2Helper;
 195     private final PinHelper pinHelper;
 196     private final AvatarStore avatarStore;
 197     private final AttachmentStore attachmentStore;
 198     private final SignalSessionLock sessionLock = new SignalSessionLock() {
 199         private final ReentrantLock LEGACY_LOCK = new ReentrantLock();
 200
 201         @Override
 202         public Lock acquire() {
 203             LEGACY_LOCK.lock();
 204             return LEGACY_LOCK::unlock;
 205         }
 206     };
 207
 208     Manager(
 209             SignalAccount account,
 210             PathConfig pathConfig,
 211             ServiceEnvironmentConfig serviceEnvironmentConfig,
 212             String userAgent
 213     ) {
 214         this.account = account;
 215         this.serviceEnvironmentConfig = serviceEnvironmentConfig;
 216         this.certificateValidator = new CertificateValidator(serviceEnvironmentConfig.getUnidentifiedSenderTrustRoot());
 217         this.userAgent = userAgent;
 218         this.groupsV2Operations = capabilities.isGv2() ? new GroupsV2Operations(ClientZkOperations.create(
 219                 serviceEnvironmentConfig.getSignalServiceConfiguration())) : null;
 220         final SleepTimer timer = new UptimeSleepTimer();
 221         this.accountManager = new SignalServiceAccountManager(serviceEnvironmentConfig.getSignalServiceConfiguration(),
 222                 new DynamicCredentialsProvider(account.getUuid(),
 223                         account.getUsername(),
 224                         account.getPassword(),
 225                         account.getDeviceId()),
 226                 userAgent,
 227                 groupsV2Operations,
 228                 ServiceConfig.AUTOMATIC_NETWORK_RETRY,
 229                 timer);
 230         this.groupsV2Api = accountManager.getGroupsV2Api();
 231         final var keyBackupService = accountManager.getKeyBackupService(ServiceConfig.getIasKeyStore(),
 232                 serviceEnvironmentConfig.getKeyBackupConfig().getEnclaveName(),
 233                 serviceEnvironmentConfig.getKeyBackupConfig().getServiceId(),
 234                 serviceEnvironmentConfig.getKeyBackupConfig().getMrenclave(),
 235                 10);
 236
 237         this.pinHelper = new PinHelper(keyBackupService);
 238         this.clientZkProfileOperations = capabilities.isGv2()
 239                 ? ClientZkOperations.create(serviceEnvironmentConfig.getSignalServiceConfiguration())
 240                 .getProfileOperations()
 241                 : null;
 242         this.messageReceiver = new SignalServiceMessageReceiver(serviceEnvironmentConfig.getSignalServiceConfiguration(),
 243                 account.getUuid(),
 244                 account.getUsername(),
 245                 account.getPassword(),
 246                 account.getDeviceId(),
 247                 userAgent,
 248                 null,
 249                 timer,
 250                 clientZkProfileOperations,
 251                 ServiceConfig.AUTOMATIC_NETWORK_RETRY);
 252
 253         this.unidentifiedAccessHelper = new UnidentifiedAccessHelper(account::getProfileKey,
 254                 account.getProfileStore()::getProfileKey,
 255                 this::getRecipientProfile,
 256                 this::getSenderCertificate);
 257         this.profileHelper = new ProfileHelper(account.getProfileStore()::getProfileKey,
 258                 unidentifiedAccessHelper::getAccessFor,
 259                 unidentified -> unidentified ? getOrCreateUnidentifiedMessagePipe() : getOrCreateMessagePipe(),
 260                 () -> messageReceiver,
 261                 this::resolveSignalServiceAddress);
 262         this.groupV2Helper = new GroupV2Helper(this::getRecipientProfileKeyCredential,
 263                 this::getRecipientProfile,
 264                 account::getSelfRecipientId,
 265                 groupsV2Operations,
 266                 groupsV2Api,
 267                 this::getGroupAuthForToday,
 268                 this::resolveSignalServiceAddress);
 269         this.avatarStore = new AvatarStore(pathConfig.getAvatarsPath());
 270         this.attachmentStore = new AttachmentStore(pathConfig.getAttachmentsPath());
 271     }
 272
 273     public String getUsername() {
 274         return account.getUsername();
 275     }
 276
 277     public SignalServiceAddress getSelfAddress() {
 278         return account.getSelfAddress();
 279     }
 280
 281     public RecipientId getSelfRecipientId() {
 282         return account.getSelfRecipientId();
 283     }
 284
 285     private IdentityKeyPair getIdentityKeyPair() {
 286         return account.getIdentityKeyPair();
 287     }
 288
 289     public int getDeviceId() {
 290         return account.getDeviceId();
 291     }
 292
 293     public static Manager init(
 294             String username, File settingsPath, ServiceEnvironment serviceEnvironment, String userAgent
 295     ) throws IOException, NotRegisteredException {
 296         var pathConfig = PathConfig.createDefault(settingsPath);
 297
 298         if (!SignalAccount.userExists(pathConfig.getDataPath(), username)) {
 299             throw new NotRegisteredException();
 300         }
 301
 302         var account = SignalAccount.load(pathConfig.getDataPath(), username, true);
 303
 304         if (!account.isRegistered()) {
 305             throw new NotRegisteredException();
 306         }
 307
 308         final var serviceEnvironmentConfig = ServiceConfig.getServiceEnvironmentConfig(serviceEnvironment, userAgent);
 309
 310         return new Manager(account, pathConfig, serviceEnvironmentConfig, userAgent);
 311     }
 312
 313     public static List<String> getAllLocalUsernames(File settingsPath) {
 314         var pathConfig = PathConfig.createDefault(settingsPath);
 315         final var dataPath = pathConfig.getDataPath();
 316         final var files = dataPath.listFiles();
 317
 318         if (files == null) {
 319             return List.of();
 320         }
 321
 322         return Arrays.stream(files)
 323                 .filter(File::isFile)
 324                 .map(File::getName)
 325                 .filter(file -> PhoneNumberFormatter.isValidNumber(file, null))
 326                 .collect(Collectors.toList());
 327     }
 328
 329     public void checkAccountState() throws IOException {
 330         if (accountManager.getPreKeysCount() < ServiceConfig.PREKEY_MINIMUM_COUNT) {
 331             refreshPreKeys();
 332         }
 333         if (account.getUuid() == null) {
 334             account.setUuid(accountManager.getOwnUuid());
 335         }
 336         updateAccountAttributes();
 337     }
 338
 339     /**
 340      * This is used for checking a set of phone numbers for registration on Signal
 341      *
 342      * @param numbers The set of phone number in question
 343      * @return A map of numbers to booleans. True if registered, false otherwise. Should never be null
 344      * @throws IOException if its unable to get the contacts to check if they're registered
 345      */
 346     public Map<String, Boolean> areUsersRegistered(Set<String> numbers) throws IOException {
 347         // Note "contactDetails" has no optionals. It only gives us info on users who are registered
 348         var contactDetails = getRegisteredUsers(numbers);
 349
 350         var registeredUsers = contactDetails.keySet();
 351
 352         return numbers.stream().collect(Collectors.toMap(x -> x, registeredUsers::contains));
 353     }
 354
 355     public void updateAccountAttributes() throws IOException {
 356         accountManager.setAccountAttributes(account.getEncryptedDeviceName(),
 357                 null,
 358                 account.getLocalRegistrationId(),
 359                 true,
 360                 // set legacy pin only if no KBS master key is set
 361                 account.getPinMasterKey() == null ? account.getRegistrationLockPin() : null,
 362                 account.getPinMasterKey() == null ? null : account.getPinMasterKey().deriveRegistrationLock(),
 363                 account.getSelfUnidentifiedAccessKey(),
 364                 account.isUnrestrictedUnidentifiedAccess(),
 365                 capabilities,
 366                 account.isDiscoverableByPhoneNumber());
 367     }
 368
 369     /**
 370      * @param givenName  if null, the previous givenName will be kept
 371      * @param familyName if null, the previous familyName will be kept
 372      * @param about      if null, the previous about text will be kept
 373      * @param aboutEmoji if null, the previous about emoji will be kept
 374      * @param avatar     if avatar is null the image from the local avatar store is used (if present),
 375      */
 376     public void setProfile(
 377             String givenName, final String familyName, String about, String aboutEmoji, Optional<File> avatar
 378     ) throws IOException {
 379         var profile = getRecipientProfile(account.getSelfRecipientId());
 380         var builder = profile == null ? Profile.newBuilder() : Profile.newBuilder(profile);
 381         if (givenName != null) {
 382             builder.withGivenName(givenName);
 383         }
 384         if (familyName != null) {
 385             builder.withFamilyName(familyName);
 386         }
 387         if (about != null) {
 388             builder.withAbout(about);
 389         }
 390         if (aboutEmoji != null) {
 391             builder.withAboutEmoji(aboutEmoji);
 392         }
 393         var newProfile = builder.build();
 394
 395         try (final var streamDetails = avatar == null
 396                 ? avatarStore.retrieveProfileAvatar(getSelfAddress())
 397                 : avatar.isPresent() ? Utils.createStreamDetailsFromFile(avatar.get()) : null) {
 398             accountManager.setVersionedProfile(account.getUuid(),
 399                     account.getProfileKey(),
 400                     newProfile.getInternalServiceName(),
 401                     newProfile.getAbout() == null ? "" : newProfile.getAbout(),
 402                     newProfile.getAboutEmoji() == null ? "" : newProfile.getAboutEmoji(),
 403                     Optional.absent(),
 404                     streamDetails);
 405         }
 406
 407         if (avatar != null) {
 408             if (avatar.isPresent()) {
 409                 avatarStore.storeProfileAvatar(getSelfAddress(),
 410                         outputStream -> IOUtils.copyFileToStream(avatar.get(), outputStream));
 411             } else {
 412                 avatarStore.deleteProfileAvatar(getSelfAddress());
 413             }
 414         }
 415         account.getProfileStore().storeProfile(account.getSelfRecipientId(), newProfile);
 416
 417         try {
 418             sendSyncMessage(SignalServiceSyncMessage.forFetchLatest(SignalServiceSyncMessage.FetchType.LOCAL_PROFILE));
 419         } catch (UntrustedIdentityException ignored) {
 420         }
 421     }
 422
 423     public void unregister() throws IOException {
 424         // When setting an empty GCM id, the Signal-Server also sets the fetchesMessages property to false.
 425         // If this is the master device, other users can't send messages to this number anymore.
 426         // If this is a linked device, other users can still send messages, but this device doesn't receive them anymore.
 427         accountManager.setGcmId(Optional.absent());
 428
 429         account.setRegistered(false);
 430     }
 431
 432     public void deleteAccount() throws IOException {
 433         accountManager.deleteAccount();
 434
 435         account.setRegistered(false);
 436     }
 437
 438     public List<Device> getLinkedDevices() throws IOException {
 439         var devices = accountManager.getDevices();
 440         account.setMultiDevice(devices.size() > 1);
 441         var identityKey = account.getIdentityKeyPair().getPrivateKey();
 442         return devices.stream().map(d -> {
 443             String deviceName = d.getName();
 444             if (deviceName != null) {
 445                 try {
 446                     deviceName = DeviceNameUtil.decryptDeviceName(deviceName, identityKey);
 447                 } catch (IOException e) {
 448                     logger.debug("Failed to decrypt device name, maybe plain text?", e);
 449                 }
 450             }
 451             return new Device(d.getId(), deviceName, d.getCreated(), d.getLastSeen());
 452         }).collect(Collectors.toList());
 453     }
 454
 455     public void removeLinkedDevices(int deviceId) throws IOException {
 456         accountManager.removeDevice(deviceId);
 457         var devices = accountManager.getDevices();
 458         account.setMultiDevice(devices.size() > 1);
 459     }
 460
 461     public void addDeviceLink(URI linkUri) throws IOException, InvalidKeyException {
 462         var info = DeviceLinkInfo.parseDeviceLinkUri(linkUri);
 463
 464         addDevice(info.deviceIdentifier, info.deviceKey);
 465     }
 466
 467     private void addDevice(String deviceIdentifier, ECPublicKey deviceKey) throws IOException, InvalidKeyException {
 468         var identityKeyPair = getIdentityKeyPair();
 469         var verificationCode = accountManager.getNewDeviceVerificationCode();
 470
 471         accountManager.addDevice(deviceIdentifier,
 472                 deviceKey,
 473                 identityKeyPair,
 474                 Optional.of(account.getProfileKey().serialize()),
 475                 verificationCode);
 476         account.setMultiDevice(true);
 477     }
 478
 479     public void setRegistrationLockPin(Optional<String> pin) throws IOException, UnauthenticatedResponseException {
 480         if (!account.isMasterDevice()) {
 481             throw new RuntimeException("Only master device can set a PIN");
 482         }
 483         if (pin.isPresent()) {
 484             final var masterKey = account.getPinMasterKey() != null
 485                     ? account.getPinMasterKey()
 486                     : KeyUtils.createMasterKey();
 487
 488             pinHelper.setRegistrationLockPin(pin.get(), masterKey);
 489
 490             account.setRegistrationLockPin(pin.get(), masterKey);
 491         } else {
 492             // Remove legacy registration lock
 493             accountManager.removeRegistrationLockV1();
 494
 495             // Remove KBS Pin
 496             pinHelper.removeRegistrationLockPin();
 497
 498             account.setRegistrationLockPin(null, null);
 499         }
 500     }
 501
 502     void refreshPreKeys() throws IOException {
 503         var oneTimePreKeys = generatePreKeys();
 504         final var identityKeyPair = getIdentityKeyPair();
 505         var signedPreKeyRecord = generateSignedPreKey(identityKeyPair);
 506
 507         accountManager.setPreKeys(identityKeyPair.getPublicKey(), signedPreKeyRecord, oneTimePreKeys);
 508     }
 509
 510     private List<PreKeyRecord> generatePreKeys() {
 511         final var offset = account.getPreKeyIdOffset();
 512
 513         var records = KeyUtils.generatePreKeyRecords(offset, ServiceConfig.PREKEY_BATCH_SIZE);
 514         account.addPreKeys(records);
 515
 516         return records;
 517     }
 518
 519     private SignedPreKeyRecord generateSignedPreKey(IdentityKeyPair identityKeyPair) {
 520         final var signedPreKeyId = account.getNextSignedPreKeyId();
 521
 522         var record = KeyUtils.generateSignedPreKeyRecord(identityKeyPair, signedPreKeyId);
 523         account.addSignedPreKey(record);
 524
 525         return record;
 526     }
 527
 528     private SignalServiceMessagePipe getOrCreateMessagePipe() {
 529         if (messagePipe == null) {
 530             messagePipe = messageReceiver.createMessagePipe();
 531         }
 532         return messagePipe;
 533     }
 534
 535     private SignalServiceMessagePipe getOrCreateUnidentifiedMessagePipe() {
 536         if (unidentifiedMessagePipe == null) {
 537             unidentifiedMessagePipe = messageReceiver.createUnidentifiedMessagePipe();
 538         }
 539         return unidentifiedMessagePipe;
 540     }
 541
 542     private SignalServiceMessageSender createMessageSender() {
 543         return new SignalServiceMessageSender(serviceEnvironmentConfig.getSignalServiceConfiguration(),
 544                 account.getUuid(),
 545                 account.getUsername(),
 546                 account.getPassword(),
 547                 account.getDeviceId(),
 548                 account.getSignalProtocolStore(),
 549                 sessionLock,
 550                 userAgent,
 551                 account.isMultiDevice(),
 552                 Optional.fromNullable(messagePipe),
 553                 Optional.fromNullable(unidentifiedMessagePipe),
 554                 Optional.absent(),
 555                 clientZkProfileOperations,
 556                 executor,
 557                 ServiceConfig.MAX_ENVELOPE_SIZE,
 558                 ServiceConfig.AUTOMATIC_NETWORK_RETRY);
 559     }
 560
 561     public Profile getRecipientProfile(
 562             RecipientId recipientId
 563     ) {
 564         return getRecipientProfile(recipientId, false);
 565     }
 566
 567     private final Set<RecipientId> pendingProfileRequest = new HashSet<>();
 568
 569     Profile getRecipientProfile(
 570             RecipientId recipientId, boolean force
 571     ) {
 572         var profile = account.getProfileStore().getProfile(recipientId);
 573
 574         var now = new Date().getTime();
 575         // Profiles are cached for 24h before retrieving them again, unless forced
 576         if (!force && profile != null && now - profile.getLastUpdateTimestamp() < 24 * 60 * 60 * 1000) {
 577             return profile;
 578         }
 579
 580         synchronized (pendingProfileRequest) {
 581             if (pendingProfileRequest.contains(recipientId)) {
 582                 return profile;
 583             }
 584             pendingProfileRequest.add(recipientId);
 585         }
 586         final SignalServiceProfile encryptedProfile;
 587         try {
 588             encryptedProfile = retrieveEncryptedProfile(recipientId);
 589         } finally {
 590             synchronized (pendingProfileRequest) {
 591                 pendingProfileRequest.remove(recipientId);
 592             }
 593         }
 594         if (encryptedProfile == null) {
 595             return null;
 596         }
 597
 598         var profileKey = account.getProfileStore().getProfileKey(recipientId);
 599         if (profileKey == null) {
 600             profile = new Profile(new Date().getTime(),
 601                     null,
 602                     null,
 603                     null,
 604                     null,
 605                     ProfileUtils.getUnidentifiedAccessMode(encryptedProfile, null),
 606                     ProfileUtils.getCapabilities(encryptedProfile));
 607         } else {
 608             profile = decryptProfileAndDownloadAvatar(recipientId, profileKey, encryptedProfile);
 609         }
 610         account.getProfileStore().storeProfile(recipientId, profile);
 611
 612         return profile;
 613     }
 614
 615     private SignalServiceProfile retrieveEncryptedProfile(RecipientId recipientId) {
 616         try {
 617             return retrieveProfileAndCredential(recipientId, SignalServiceProfile.RequestType.PROFILE).getProfile();
 618         } catch (IOException e) {
 619             logger.warn("Failed to retrieve profile, ignoring: {}", e.getMessage());
 620             return null;
 621         }
 622     }
 623
 624     private ProfileAndCredential retrieveProfileAndCredential(
 625             final RecipientId recipientId, final SignalServiceProfile.RequestType requestType
 626     ) throws IOException {
 627         final var profileAndCredential = profileHelper.retrieveProfileSync(recipientId, requestType);
 628         final var profile = profileAndCredential.getProfile();
 629
 630         try {
 631             var newIdentity = account.getIdentityKeyStore()
 632                     .saveIdentity(recipientId,
 633                             new IdentityKey(Base64.getDecoder().decode(profile.getIdentityKey())),
 634                             new Date());
 635
 636             if (newIdentity) {
 637                 account.getSessionStore().archiveSessions(recipientId);
 638             }
 639         } catch (InvalidKeyException ignored) {
 640             logger.warn("Got invalid identity key in profile for {}",
 641                     resolveSignalServiceAddress(recipientId).getLegacyIdentifier());
 642         }
 643         return profileAndCredential;
 644     }
 645
 646     private ProfileKeyCredential getRecipientProfileKeyCredential(RecipientId recipientId) {
 647         var profileKeyCredential = account.getProfileStore().getProfileKeyCredential(recipientId);
 648         if (profileKeyCredential != null) {
 649             return profileKeyCredential;
 650         }
 651
 652         ProfileAndCredential profileAndCredential;
 653         try {
 654             profileAndCredential = retrieveProfileAndCredential(recipientId,
 655                     SignalServiceProfile.RequestType.PROFILE_AND_CREDENTIAL);
 656         } catch (IOException e) {
 657             logger.warn("Failed to retrieve profile key credential, ignoring: {}", e.getMessage());
 658             return null;
 659         }
 660
 661         profileKeyCredential = profileAndCredential.getProfileKeyCredential().orNull();
 662         account.getProfileStore().storeProfileKeyCredential(recipientId, profileKeyCredential);
 663
 664         var profileKey = account.getProfileStore().getProfileKey(recipientId);
 665         if (profileKey != null) {
 666             final var profile = decryptProfileAndDownloadAvatar(recipientId,
 667                     profileKey,
 668                     profileAndCredential.getProfile());
 669             account.getProfileStore().storeProfile(recipientId, profile);
 670         }
 671
 672         return profileKeyCredential;
 673     }
 674
 675     private Profile decryptProfileAndDownloadAvatar(
 676             final RecipientId recipientId, final ProfileKey profileKey, final SignalServiceProfile encryptedProfile
 677     ) {
 678         if (encryptedProfile.getAvatar() != null) {
 679             downloadProfileAvatar(resolveSignalServiceAddress(recipientId), encryptedProfile.getAvatar(), profileKey);
 680         }
 681
 682         return ProfileUtils.decryptProfile(profileKey, encryptedProfile);
 683     }
 684
 685     private Optional<SignalServiceAttachmentStream> createGroupAvatarAttachment(GroupId groupId) throws IOException {
 686         final var streamDetails = avatarStore.retrieveGroupAvatar(groupId);
 687         if (streamDetails == null) {
 688             return Optional.absent();
 689         }
 690
 691         return Optional.of(AttachmentUtils.createAttachment(streamDetails, Optional.absent()));
 692     }
 693
 694     private Optional<SignalServiceAttachmentStream> createContactAvatarAttachment(SignalServiceAddress address) throws IOException {
 695         final var streamDetails = avatarStore.retrieveContactAvatar(address);
 696         if (streamDetails == null) {
 697             return Optional.absent();
 698         }
 699
 700         return Optional.of(AttachmentUtils.createAttachment(streamDetails, Optional.absent()));
 701     }
 702
 703     private GroupInfo getGroupForSending(GroupId groupId) throws GroupNotFoundException, NotAGroupMemberException {
 704         var g = getGroup(groupId);
 705         if (g == null) {
 706             throw new GroupNotFoundException(groupId);
 707         }
 708         if (!g.isMember(account.getSelfRecipientId())) {
 709             throw new NotAGroupMemberException(groupId, g.getTitle());
 710         }
 711         return g;
 712     }
 713
 714     private GroupInfo getGroupForUpdating(GroupId groupId) throws GroupNotFoundException, NotAGroupMemberException {
 715         var g = getGroup(groupId);
 716         if (g == null) {
 717             throw new GroupNotFoundException(groupId);
 718         }
 719         if (!g.isMember(account.getSelfRecipientId()) && !g.isPendingMember(account.getSelfRecipientId())) {
 720             throw new NotAGroupMemberException(groupId, g.getTitle());
 721         }
 722         return g;
 723     }
 724
 725     public List<GroupInfo> getGroups() {
 726         return account.getGroupStore().getGroups();
 727     }
 728
 729     public Pair<Long, List<SendMessageResult>> sendGroupMessage(
 730             String messageText, List<String> attachments, GroupId groupId
 731     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 732         final var messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
 733         if (attachments != null) {
 734             messageBuilder.withAttachments(AttachmentUtils.getSignalServiceAttachments(attachments));
 735         }
 736
 737         return sendGroupMessage(messageBuilder, groupId);
 738     }
 739
 740     public Pair<Long, List<SendMessageResult>> sendGroupMessageReaction(
 741             String emoji, boolean remove, String targetAuthor, long targetSentTimestamp, GroupId groupId
 742     ) throws IOException, InvalidNumberException, NotAGroupMemberException, GroupNotFoundException {
 743         var targetAuthorRecipientId = canonicalizeAndResolveRecipient(targetAuthor);
 744         var reaction = new SignalServiceDataMessage.Reaction(emoji,
 745                 remove,
 746                 resolveSignalServiceAddress(targetAuthorRecipientId),
 747                 targetSentTimestamp);
 748         final var messageBuilder = SignalServiceDataMessage.newBuilder().withReaction(reaction);
 749
 750         return sendGroupMessage(messageBuilder, groupId);
 751     }
 752
 753     public Pair<Long, List<SendMessageResult>> sendGroupMessage(
 754             SignalServiceDataMessage.Builder messageBuilder, GroupId groupId
 755     ) throws IOException, GroupNotFoundException, NotAGroupMemberException {
 756         final var g = getGroupForSending(groupId);
 757
 758         GroupUtils.setGroupContext(messageBuilder, g);
 759         messageBuilder.withExpiration(g.getMessageExpirationTime());
 760
 761         return sendMessage(messageBuilder, g.getMembersWithout(account.getSelfRecipientId()));
 762     }
 763
 764     public Pair<Long, List<SendMessageResult>> sendQuitGroupMessage(GroupId groupId) throws GroupNotFoundException, IOException, NotAGroupMemberException {
 765         SignalServiceDataMessage.Builder messageBuilder;
 766
 767         final var g = getGroupForUpdating(groupId);
 768         if (g instanceof GroupInfoV1) {
 769             var groupInfoV1 = (GroupInfoV1) g;
 770             var group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.QUIT).withId(groupId.serialize()).build();
 771             messageBuilder = SignalServiceDataMessage.newBuilder().asGroupMessage(group);
 772             groupInfoV1.removeMember(account.getSelfRecipientId());
 773             account.getGroupStore().updateGroup(groupInfoV1);
 774         } else {
 775             final var groupInfoV2 = (GroupInfoV2) g;
 776             final var groupGroupChangePair = groupV2Helper.leaveGroup(groupInfoV2);
 777             groupInfoV2.setGroup(groupGroupChangePair.first(), this::resolveRecipient);
 778             messageBuilder = getGroupUpdateMessageBuilder(groupInfoV2, groupGroupChangePair.second().toByteArray());
 779             account.getGroupStore().updateGroup(groupInfoV2);
 780         }
 781
 782         return sendMessage(messageBuilder, g.getMembersWithout(account.getSelfRecipientId()));
 783     }
 784
 785     public Pair<GroupId, List<SendMessageResult>> createGroup(
 786             String name, List<String> members, File avatarFile
 787     ) throws IOException, AttachmentInvalidException, InvalidNumberException {
 788         return createGroup(name, members == null ? null : getSignalServiceAddresses(members), avatarFile);
 789     }
 790
 791     private Pair<GroupId, List<SendMessageResult>> createGroup(
 792             String name, Set<RecipientId> members, File avatarFile
 793     ) throws IOException, AttachmentInvalidException {
 794         final var selfRecipientId = account.getSelfRecipientId();
 795         if (members != null && members.contains(selfRecipientId)) {
 796             members = new HashSet<>(members);
 797             members.remove(selfRecipientId);
 798         }
 799
 800         var gv2Pair = groupV2Helper.createGroup(name == null ? "" : name,
 801                 members == null ? Set.of() : members,
 802                 avatarFile);
 803
 804         SignalServiceDataMessage.Builder messageBuilder;
 805         if (gv2Pair == null) {
 806             // Failed to create v2 group, creating v1 group instead
 807             var gv1 = new GroupInfoV1(GroupIdV1.createRandom());
 808             gv1.addMembers(List.of(selfRecipientId));
 809             final var result = updateGroupV1(gv1, name, members, avatarFile);
 810             return new Pair<>(gv1.getGroupId(), result.second());
 811         }
 812
 813         final var gv2 = gv2Pair.first();
 814         final var decryptedGroup = gv2Pair.second();
 815
 816         gv2.setGroup(decryptedGroup, this::resolveRecipient);
 817         if (avatarFile != null) {
 818             avatarStore.storeGroupAvatar(gv2.getGroupId(),
 819                     outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
 820         }
 821         messageBuilder = getGroupUpdateMessageBuilder(gv2, null);
 822         account.getGroupStore().updateGroup(gv2);
 823
 824         final var result = sendMessage(messageBuilder, gv2.getMembersIncludingPendingWithout(selfRecipientId));
 825         return new Pair<>(gv2.getGroupId(), result.second());
 826     }
 827
 828     public Pair<Long, List<SendMessageResult>> updateGroup(
 829             GroupId groupId,
 830             String name,
 831             String description,
 832             List<String> members,
 833             List<String> removeMembers,
 834             List<String> admins,
 835             List<String> removeAdmins,
 836             File avatarFile
 837     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, InvalidNumberException, NotAGroupMemberException {
 838         return updateGroup(groupId,
 839                 name,
 840                 description,
 841                 members == null ? null : getSignalServiceAddresses(members),
 842                 removeMembers == null ? null : getSignalServiceAddresses(removeMembers),
 843                 admins == null ? null : getSignalServiceAddresses(admins),
 844                 removeAdmins == null ? null : getSignalServiceAddresses(removeAdmins),
 845                 avatarFile);
 846     }
 847
 848     private Pair<Long, List<SendMessageResult>> updateGroup(
 849             final GroupId groupId,
 850             final String name,
 851             final String description,
 852             final Set<RecipientId> members,
 853             final Set<RecipientId> removeMembers,
 854             final Set<RecipientId> admins,
 855             final Set<RecipientId> removeAdmins,
 856             final File avatarFile
 857     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 858         var group = getGroupForUpdating(groupId);
 859
 860         if (group instanceof GroupInfoV2) {
 861             return updateGroupV2((GroupInfoV2) group,
 862                     name,
 863                     description,
 864                     members,
 865                     removeMembers,
 866                     admins,
 867                     removeAdmins,
 868                     avatarFile);
 869         }
 870
 871         return updateGroupV1((GroupInfoV1) group, name, members, avatarFile);
 872     }
 873
 874     private Pair<Long, List<SendMessageResult>> updateGroupV1(
 875             final GroupInfoV1 gv1, final String name, final Set<RecipientId> members, final File avatarFile
 876     ) throws IOException, AttachmentInvalidException {
 877         updateGroupV1Details(gv1, name, members, avatarFile);
 878         var messageBuilder = getGroupUpdateMessageBuilder(gv1);
 879
 880         account.getGroupStore().updateGroup(gv1);
 881
 882         return sendMessage(messageBuilder, gv1.getMembersIncludingPendingWithout(account.getSelfRecipientId()));
 883     }
 884
 885     private void updateGroupV1Details(
 886             final GroupInfoV1 g, final String name, final Collection<RecipientId> members, final File avatarFile
 887     ) throws IOException {
 888         if (name != null) {
 889             g.name = name;
 890         }
 891
 892         if (members != null) {
 893             final var newMemberAddresses = members.stream()
 894                     .filter(member -> !g.isMember(member))
 895                     .map(this::resolveSignalServiceAddress)
 896                     .collect(Collectors.toList());
 897             final var newE164Members = new HashSet<String>();
 898             for (var member : newMemberAddresses) {
 899                 if (!member.getNumber().isPresent()) {
 900                     continue;
 901                 }
 902                 newE164Members.add(member.getNumber().get());
 903             }
 904
 905             final var registeredUsers = getRegisteredUsers(newE164Members);
 906             if (registeredUsers.size() != newE164Members.size()) {
 907                 // Some of the new members are not registered on Signal
 908                 newE164Members.removeAll(registeredUsers.keySet());
 909                 throw new IOException("Failed to add members "
 910                         + String.join(", ", newE164Members)
 911                         + " to group: Not registered on Signal");
 912             }
 913
 914             g.addMembers(members);
 915         }
 916
 917         if (avatarFile != null) {
 918             avatarStore.storeGroupAvatar(g.getGroupId(),
 919                     outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
 920         }
 921     }
 922
 923     private Pair<Long, List<SendMessageResult>> updateGroupV2(
 924             final GroupInfoV2 group,
 925             final String name,
 926             final String description,
 927             final Set<RecipientId> members,
 928             final Set<RecipientId> removeMembers,
 929             final Set<RecipientId> admins,
 930             final Set<RecipientId> removeAdmins,
 931             final File avatarFile
 932     ) throws IOException {
 933         Pair<Long, List<SendMessageResult>> result = null;
 934         if (group.isPendingMember(account.getSelfRecipientId())) {
 935             var groupGroupChangePair = groupV2Helper.acceptInvite(group);
 936             result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
 937         }
 938
 939         if (members != null) {
 940             final var newMembers = new HashSet<>(members);
 941             newMembers.removeAll(group.getMembers());
 942             if (newMembers.size() > 0) {
 943                 var groupGroupChangePair = groupV2Helper.addMembers(group, newMembers);
 944                 result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
 945             }
 946         }
 947
 948         if (removeMembers != null) {
 949             var existingRemoveMembers = new HashSet<>(removeMembers);
 950             existingRemoveMembers.retainAll(group.getMembers());
 951             existingRemoveMembers.remove(getSelfRecipientId());// self can be removed with sendQuitGroupMessage
 952             if (existingRemoveMembers.size() > 0) {
 953                 var groupGroupChangePair = groupV2Helper.removeMembers(group, existingRemoveMembers);
 954                 result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
 955             }
 956
 957             var pendingRemoveMembers = new HashSet<>(removeMembers);
 958             pendingRemoveMembers.retainAll(group.getPendingMembers());
 959             if (pendingRemoveMembers.size() > 0) {
 960                 var groupGroupChangePair = groupV2Helper.revokeInvitedMembers(group, pendingRemoveMembers);
 961                 result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
 962             }
 963         }
 964
 965         if (admins != null) {
 966             final var newAdmins = new HashSet<>(admins);
 967             newAdmins.retainAll(group.getMembers());
 968             newAdmins.removeAll(group.getAdminMembers());
 969             if (newAdmins.size() > 0) {
 970                 for (var admin : newAdmins) {
 971                     var groupGroupChangePair = groupV2Helper.setMemberAdmin(group, admin, true);
 972                     result = sendUpdateGroupV2Message(group,
 973                             groupGroupChangePair.first(),
 974                             groupGroupChangePair.second());
 975                 }
 976             }
 977         }
 978
 979         if (removeAdmins != null) {
 980             final var existingRemoveAdmins = new HashSet<>(removeAdmins);
 981             existingRemoveAdmins.retainAll(group.getAdminMembers());
 982             if (existingRemoveAdmins.size() > 0) {
 983                 for (var admin : existingRemoveAdmins) {
 984                     var groupGroupChangePair = groupV2Helper.setMemberAdmin(group, admin, false);
 985                     result = sendUpdateGroupV2Message(group,
 986                             groupGroupChangePair.first(),
 987                             groupGroupChangePair.second());
 988                 }
 989             }
 990         }
 991
 992         if (result == null || name != null || description != null || avatarFile != null) {
 993             var groupGroupChangePair = groupV2Helper.updateGroup(group, name, description, avatarFile);
 994             if (avatarFile != null) {
 995                 avatarStore.storeGroupAvatar(group.getGroupId(),
 996                         outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
 997             }
 998             result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
 999         }
1000
1001         return result;
1002     }
1003
1004     public Pair<GroupId, List<SendMessageResult>> joinGroup(
1005             GroupInviteLinkUrl inviteLinkUrl
1006     ) throws IOException, GroupLinkNotActiveException {
1007         final var groupJoinInfo = groupV2Helper.getDecryptedGroupJoinInfo(inviteLinkUrl.getGroupMasterKey(),
1008                 inviteLinkUrl.getPassword());
1009         final var groupChange = groupV2Helper.joinGroup(inviteLinkUrl.getGroupMasterKey(),
1010                 inviteLinkUrl.getPassword(),
1011                 groupJoinInfo);
1012         final var group = getOrMigrateGroup(inviteLinkUrl.getGroupMasterKey(),
1013                 groupJoinInfo.getRevision() + 1,
1014                 groupChange.toByteArray());
1015
1016         if (group.getGroup() == null) {
1017             // Only requested member, can't send update to group members
1018             return new Pair<>(group.getGroupId(), List.of());
1019         }
1020
1021         final var result = sendUpdateGroupV2Message(group, group.getGroup(), groupChange);
1022
1023         return new Pair<>(group.getGroupId(), result.second());
1024     }
1025
1026     private Pair<Long, List<SendMessageResult>> sendUpdateGroupV2Message(
1027             GroupInfoV2 group, DecryptedGroup newDecryptedGroup, GroupChange groupChange
1028     ) throws IOException {
1029         final var selfRecipientId = account.getSelfRecipientId();
1030         final var members = group.getMembersIncludingPendingWithout(selfRecipientId);
1031         group.setGroup(newDecryptedGroup, this::resolveRecipient);
1032         members.addAll(group.getMembersIncludingPendingWithout(selfRecipientId));
1033
1034         final var messageBuilder = getGroupUpdateMessageBuilder(group, groupChange.toByteArray());
1035         account.getGroupStore().updateGroup(group);
1036         return sendMessage(messageBuilder, members);
1037     }
1038
1039     private static int currentTimeDays() {
1040         return (int) TimeUnit.MILLISECONDS.toDays(System.currentTimeMillis());
1041     }
1042
1043     private GroupsV2AuthorizationString getGroupAuthForToday(
1044             final GroupSecretParams groupSecretParams
1045     ) throws IOException {
1046         final var today = currentTimeDays();
1047         // Returns credentials for the next 7 days
1048         final var credentials = groupsV2Api.getCredentials(today);
1049         // TODO cache credentials until they expire
1050         var authCredentialResponse = credentials.get(today);
1051         try {
1052             return groupsV2Api.getGroupsV2AuthorizationString(account.getUuid(),
1053                     today,
1054                     groupSecretParams,
1055                     authCredentialResponse);
1056         } catch (VerificationFailedException e) {
1057             throw new IOException(e);
1058         }
1059     }
1060
1061     Pair<Long, List<SendMessageResult>> sendGroupInfoMessage(
1062             GroupIdV1 groupId, SignalServiceAddress recipient
1063     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, AttachmentInvalidException {
1064         GroupInfoV1 g;
1065         var group = getGroupForSending(groupId);
1066         if (!(group instanceof GroupInfoV1)) {
1067             throw new RuntimeException("Received an invalid group request for a v2 group!");
1068         }
1069         g = (GroupInfoV1) group;
1070
1071         final var recipientId = resolveRecipient(recipient);
1072         if (!g.isMember(recipientId)) {
1073             throw new NotAGroupMemberException(groupId, g.name);
1074         }
1075
1076         var messageBuilder = getGroupUpdateMessageBuilder(g);
1077
1078         // Send group message only to the recipient who requested it
1079         return sendMessage(messageBuilder, Set.of(recipientId));
1080     }
1081
1082     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfoV1 g) throws AttachmentInvalidException {
1083         var group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.UPDATE)
1084                 .withId(g.getGroupId().serialize())
1085                 .withName(g.name)
1086                 .withMembers(g.getMembers()
1087                         .stream()
1088                         .map(this::resolveSignalServiceAddress)
1089                         .collect(Collectors.toList()));
1090
1091         try {
1092             final var attachment = createGroupAvatarAttachment(g.getGroupId());
1093             if (attachment.isPresent()) {
1094                 group.withAvatar(attachment.get());
1095             }
1096         } catch (IOException e) {
1097             throw new AttachmentInvalidException(g.getGroupId().toBase64(), e);
1098         }
1099
1100         return SignalServiceDataMessage.newBuilder()
1101                 .asGroupMessage(group.build())
1102                 .withExpiration(g.getMessageExpirationTime());
1103     }
1104
1105     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfoV2 g, byte[] signedGroupChange) {
1106         var group = SignalServiceGroupV2.newBuilder(g.getMasterKey())
1107                 .withRevision(g.getGroup().getRevision())
1108                 .withSignedGroupChange(signedGroupChange);
1109         return SignalServiceDataMessage.newBuilder()
1110                 .asGroupMessage(group.build())
1111                 .withExpiration(g.getMessageExpirationTime());
1112     }
1113
1114     Pair<Long, List<SendMessageResult>> sendGroupInfoRequest(
1115             GroupIdV1 groupId, SignalServiceAddress recipient
1116     ) throws IOException {
1117         var group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.REQUEST_INFO).withId(groupId.serialize());
1118
1119         var messageBuilder = SignalServiceDataMessage.newBuilder().asGroupMessage(group.build());
1120
1121         // Send group info request message to the recipient who sent us a message with this groupId
1122         return sendMessage(messageBuilder, Set.of(resolveRecipient(recipient)));
1123     }
1124
1125     void sendReceipt(
1126             SignalServiceAddress remoteAddress, long messageId
1127     ) throws IOException, UntrustedIdentityException {
1128         var receiptMessage = new SignalServiceReceiptMessage(SignalServiceReceiptMessage.Type.DELIVERY,
1129                 List.of(messageId),
1130                 System.currentTimeMillis());
1131
1132         createMessageSender().sendReceipt(remoteAddress,
1133                 unidentifiedAccessHelper.getAccessFor(resolveRecipient(remoteAddress)),
1134                 receiptMessage);
1135     }
1136
1137     public Pair<Long, List<SendMessageResult>> sendMessage(
1138             String messageText, List<String> attachments, List<String> recipients
1139     ) throws IOException, AttachmentInvalidException, InvalidNumberException {
1140         final var messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
1141         if (attachments != null) {
1142             var attachmentStreams = AttachmentUtils.getSignalServiceAttachments(attachments);
1143
1144             // Upload attachments here, so we only upload once even for multiple recipients
1145             var messageSender = createMessageSender();
1146             var attachmentPointers = new ArrayList<SignalServiceAttachment>(attachmentStreams.size());
1147             for (var attachment : attachmentStreams) {
1148                 if (attachment.isStream()) {
1149                     attachmentPointers.add(messageSender.uploadAttachment(attachment.asStream()));
1150                 } else if (attachment.isPointer()) {
1151                     attachmentPointers.add(attachment.asPointer());
1152                 }
1153             }
1154
1155             messageBuilder.withAttachments(attachmentPointers);
1156         }
1157         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
1158     }
1159
1160     public Pair<Long, SendMessageResult> sendSelfMessage(
1161             String messageText, List<String> attachments
1162     ) throws IOException, AttachmentInvalidException {
1163         final var messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
1164         if (attachments != null) {
1165             messageBuilder.withAttachments(AttachmentUtils.getSignalServiceAttachments(attachments));
1166         }
1167         return sendSelfMessage(messageBuilder);
1168     }
1169
1170     public Pair<Long, List<SendMessageResult>> sendRemoteDeleteMessage(
1171             long targetSentTimestamp, List<String> recipients
1172     ) throws IOException, InvalidNumberException {
1173         var delete = new SignalServiceDataMessage.RemoteDelete(targetSentTimestamp);
1174         final var messageBuilder = SignalServiceDataMessage.newBuilder().withRemoteDelete(delete);
1175         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
1176     }
1177
1178     public Pair<Long, List<SendMessageResult>> sendGroupRemoteDeleteMessage(
1179             long targetSentTimestamp, GroupId groupId
1180     ) throws IOException, NotAGroupMemberException, GroupNotFoundException {
1181         var delete = new SignalServiceDataMessage.RemoteDelete(targetSentTimestamp);
1182         final var messageBuilder = SignalServiceDataMessage.newBuilder().withRemoteDelete(delete);
1183         return sendGroupMessage(messageBuilder, groupId);
1184     }
1185
1186     public Pair<Long, List<SendMessageResult>> sendMessageReaction(
1187             String emoji, boolean remove, String targetAuthor, long targetSentTimestamp, List<String> recipients
1188     ) throws IOException, InvalidNumberException {
1189         var targetAuthorRecipientId = canonicalizeAndResolveRecipient(targetAuthor);
1190         var reaction = new SignalServiceDataMessage.Reaction(emoji,
1191                 remove,
1192                 resolveSignalServiceAddress(targetAuthorRecipientId),
1193                 targetSentTimestamp);
1194         final var messageBuilder = SignalServiceDataMessage.newBuilder().withReaction(reaction);
1195         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
1196     }
1197
1198     public Pair<Long, List<SendMessageResult>> sendEndSessionMessage(List<String> recipients) throws IOException, InvalidNumberException {
1199         var messageBuilder = SignalServiceDataMessage.newBuilder().asEndSessionMessage();
1200
1201         final var signalServiceAddresses = getSignalServiceAddresses(recipients);
1202         try {
1203             return sendMessage(messageBuilder, signalServiceAddresses);
1204         } catch (Exception e) {
1205             for (var address : signalServiceAddresses) {
1206                 handleEndSession(address);
1207             }
1208             throw e;
1209         }
1210     }
1211
1212     void renewSession(RecipientId recipientId) throws IOException {
1213         account.getSessionStore().archiveSessions(recipientId);
1214         if (!recipientId.equals(getSelfRecipientId())) {
1215             sendNullMessage(recipientId);
1216         }
1217     }
1218
1219     public String getContactName(String number) throws InvalidNumberException {
1220         var contact = account.getContactStore().getContact(canonicalizeAndResolveRecipient(number));
1221         return contact == null || contact.getName() == null ? "" : contact.getName();
1222     }
1223
1224     public void setContactName(String number, String name) throws InvalidNumberException, NotMasterDeviceException {
1225         if (!account.isMasterDevice()) {
1226             throw new NotMasterDeviceException();
1227         }
1228         final var recipientId = canonicalizeAndResolveRecipient(number);
1229         var contact = account.getContactStore().getContact(recipientId);
1230         final var builder = contact == null ? Contact.newBuilder() : Contact.newBuilder(contact);
1231         account.getContactStore().storeContact(recipientId, builder.withName(name).build());
1232     }
1233
1234     public void setContactBlocked(
1235             String number, boolean blocked
1236     ) throws InvalidNumberException, NotMasterDeviceException {
1237         if (!account.isMasterDevice()) {
1238             throw new NotMasterDeviceException();
1239         }
1240         setContactBlocked(canonicalizeAndResolveRecipient(number), blocked);
1241     }
1242
1243     private void setContactBlocked(RecipientId recipientId, boolean blocked) {
1244         var contact = account.getContactStore().getContact(recipientId);
1245         final var builder = contact == null ? Contact.newBuilder() : Contact.newBuilder(contact);
1246         account.getContactStore().storeContact(recipientId, builder.withBlocked(blocked).build());
1247     }
1248
1249     public void setGroupBlocked(final GroupId groupId, final boolean blocked) throws GroupNotFoundException {
1250         var group = getGroup(groupId);
1251         if (group == null) {
1252             throw new GroupNotFoundException(groupId);
1253         }
1254
1255         group.setBlocked(blocked);
1256         account.getGroupStore().updateGroup(group);
1257     }
1258
1259     private void setExpirationTimer(RecipientId recipientId, int messageExpirationTimer) {
1260         var contact = account.getContactStore().getContact(recipientId);
1261         if (contact != null && contact.getMessageExpirationTime() == messageExpirationTimer) {
1262             return;
1263         }
1264         final var builder = contact == null ? Contact.newBuilder() : Contact.newBuilder(contact);
1265         account.getContactStore()
1266                 .storeContact(recipientId, builder.withMessageExpirationTime(messageExpirationTimer).build());
1267     }
1268
1269     private void sendExpirationTimerUpdate(RecipientId recipientId) throws IOException {
1270         final var messageBuilder = SignalServiceDataMessage.newBuilder().asExpirationUpdate();
1271         sendMessage(messageBuilder, Set.of(recipientId));
1272     }
1273
1274     /**
1275      * Change the expiration timer for a contact
1276      */
1277     public void setExpirationTimer(
1278             String number, int messageExpirationTimer
1279     ) throws IOException, InvalidNumberException {
1280         var recipientId = canonicalizeAndResolveRecipient(number);
1281         setExpirationTimer(recipientId, messageExpirationTimer);
1282         sendExpirationTimerUpdate(recipientId);
1283     }
1284
1285     /**
1286      * Change the expiration timer for a group
1287      */
1288     public void setExpirationTimer(GroupId groupId, int messageExpirationTimer) {
1289         var g = getGroup(groupId);
1290         if (g instanceof GroupInfoV1) {
1291             var groupInfoV1 = (GroupInfoV1) g;
1292             groupInfoV1.messageExpirationTime = messageExpirationTimer;
1293             account.getGroupStore().updateGroup(groupInfoV1);
1294         } else {
1295             throw new RuntimeException("TODO Not implemented!");
1296         }
1297     }
1298
1299     /**
1300      * Upload the sticker pack from path.
1301      *
1302      * @param path Path can be a path to a manifest.json file or to a zip file that contains a manifest.json file
1303      * @return if successful, returns the URL to install the sticker pack in the signal app
1304      */
1305     public String uploadStickerPack(File path) throws IOException, StickerPackInvalidException {
1306         var manifest = StickerUtils.getSignalServiceStickerManifestUpload(path);
1307
1308         var messageSender = createMessageSender();
1309
1310         var packKey = KeyUtils.createStickerUploadKey();
1311         var packId = messageSender.uploadStickerManifest(manifest, packKey);
1312
1313         var sticker = new Sticker(StickerPackId.deserialize(Hex.fromStringCondensed(packId)), packKey);
1314         account.getStickerStore().updateSticker(sticker);
1315
1316         try {
1317             return new URI("https",
1318                     "signal.art",
1319                     "/addstickers/",
1320                     "pack_id=" + URLEncoder.encode(packId, StandardCharsets.UTF_8) + "&pack_key=" + URLEncoder.encode(
1321                             Hex.toStringCondensed(packKey),
1322                             StandardCharsets.UTF_8)).toString();
1323         } catch (URISyntaxException e) {
1324             throw new AssertionError(e);
1325         }
1326     }
1327
1328     public void requestAllSyncData() throws IOException {
1329         requestSyncGroups();
1330         requestSyncContacts();
1331         requestSyncBlocked();
1332         requestSyncConfiguration();
1333         requestSyncKeys();
1334     }
1335
1336     private void requestSyncGroups() throws IOException {
1337         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1338                 .setType(SignalServiceProtos.SyncMessage.Request.Type.GROUPS)
1339                 .build();
1340         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1341         try {
1342             sendSyncMessage(message);
1343         } catch (UntrustedIdentityException e) {
1344             throw new AssertionError(e);
1345         }
1346     }
1347
1348     private void requestSyncContacts() throws IOException {
1349         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1350                 .setType(SignalServiceProtos.SyncMessage.Request.Type.CONTACTS)
1351                 .build();
1352         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1353         try {
1354             sendSyncMessage(message);
1355         } catch (UntrustedIdentityException e) {
1356             throw new AssertionError(e);
1357         }
1358     }
1359
1360     private void requestSyncBlocked() throws IOException {
1361         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1362                 .setType(SignalServiceProtos.SyncMessage.Request.Type.BLOCKED)
1363                 .build();
1364         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1365         try {
1366             sendSyncMessage(message);
1367         } catch (UntrustedIdentityException e) {
1368             throw new AssertionError(e);
1369         }
1370     }
1371
1372     private void requestSyncConfiguration() throws IOException {
1373         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1374                 .setType(SignalServiceProtos.SyncMessage.Request.Type.CONFIGURATION)
1375                 .build();
1376         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1377         try {
1378             sendSyncMessage(message);
1379         } catch (UntrustedIdentityException e) {
1380             throw new AssertionError(e);
1381         }
1382     }
1383
1384     private void requestSyncKeys() throws IOException {
1385         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1386                 .setType(SignalServiceProtos.SyncMessage.Request.Type.KEYS)
1387                 .build();
1388         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1389         try {
1390             sendSyncMessage(message);
1391         } catch (UntrustedIdentityException e) {
1392             throw new AssertionError(e);
1393         }
1394     }
1395
1396     private byte[] getSenderCertificate() {
1397         byte[] certificate;
1398         try {
1399             if (account.isPhoneNumberShared()) {
1400                 certificate = accountManager.getSenderCertificate();
1401             } else {
1402                 certificate = accountManager.getSenderCertificateForPhoneNumberPrivacy();
1403             }
1404         } catch (IOException e) {
1405             logger.warn("Failed to get sender certificate, ignoring: {}", e.getMessage());
1406             return null;
1407         }
1408         // TODO cache for a day
1409         return certificate;
1410     }
1411
1412     private void sendSyncMessage(SignalServiceSyncMessage message) throws IOException, UntrustedIdentityException {
1413         var messageSender = createMessageSender();
1414         messageSender.sendMessage(message, unidentifiedAccessHelper.getAccessForSync());
1415     }
1416
1417     private Set<RecipientId> getSignalServiceAddresses(Collection<String> numbers) throws InvalidNumberException {
1418         final var signalServiceAddresses = new HashSet<SignalServiceAddress>(numbers.size());
1419         final var addressesMissingUuid = new HashSet<SignalServiceAddress>();
1420
1421         for (var number : numbers) {
1422             final var resolvedAddress = resolveSignalServiceAddress(canonicalizeAndResolveRecipient(number));
1423             if (resolvedAddress.getUuid().isPresent()) {
1424                 signalServiceAddresses.add(resolvedAddress);
1425             } else {
1426                 addressesMissingUuid.add(resolvedAddress);
1427             }
1428         }
1429
1430         final var numbersMissingUuid = addressesMissingUuid.stream()
1431                 .map(a -> a.getNumber().get())
1432                 .collect(Collectors.toSet());
1433         Map<String, UUID> registeredUsers;
1434         try {
1435             registeredUsers = getRegisteredUsers(numbersMissingUuid);
1436         } catch (IOException e) {
1437             logger.warn("Failed to resolve uuids from server, ignoring: {}", e.getMessage());
1438             registeredUsers = Map.of();
1439         }
1440
1441         for (var address : addressesMissingUuid) {
1442             final var number = address.getNumber().get();
1443             if (registeredUsers.containsKey(number)) {
1444                 final var newAddress = resolveSignalServiceAddress(resolveRecipientTrusted(new SignalServiceAddress(
1445                         registeredUsers.get(number),
1446                         number)));
1447                 signalServiceAddresses.add(newAddress);
1448             } else {
1449                 signalServiceAddresses.add(address);
1450             }
1451         }
1452
1453         return signalServiceAddresses.stream().map(this::resolveRecipient).collect(Collectors.toSet());
1454     }
1455
1456     private RecipientId refreshRegisteredUser(RecipientId recipientId) throws IOException {
1457         final var address = resolveSignalServiceAddress(recipientId);
1458         if (!address.getNumber().isPresent()) {
1459             return recipientId;
1460         }
1461         final var number = address.getNumber().get();
1462         final var uuidMap = getRegisteredUsers(Set.of(number));
1463         return resolveRecipientTrusted(new SignalServiceAddress(uuidMap.getOrDefault(number, null), number));
1464     }
1465
1466     private Map<String, UUID> getRegisteredUsers(final Set<String> numbers) throws IOException {
1467         try {
1468             return accountManager.getRegisteredUsers(ServiceConfig.getIasKeyStore(),
1469                     numbers,
1470                     serviceEnvironmentConfig.getCdsMrenclave());
1471         } catch (Quote.InvalidQuoteFormatException | UnauthenticatedQuoteException | SignatureException | UnauthenticatedResponseException | InvalidKeyException e) {
1472             throw new IOException(e);
1473         }
1474     }
1475
1476     private Pair<Long, List<SendMessageResult>> sendMessage(
1477             SignalServiceDataMessage.Builder messageBuilder, Set<RecipientId> recipientIds
1478     ) throws IOException {
1479         final var timestamp = System.currentTimeMillis();
1480         messageBuilder.withTimestamp(timestamp);
1481         getOrCreateMessagePipe();
1482         getOrCreateUnidentifiedMessagePipe();
1483         SignalServiceDataMessage message = null;
1484         try {
1485             message = messageBuilder.build();
1486             if (message.getGroupContext().isPresent()) {
1487                 try {
1488                     var messageSender = createMessageSender();
1489                     final var isRecipientUpdate = false;
1490                     final var recipientIdList = new ArrayList<>(recipientIds);
1491                     final var addresses = recipientIdList.stream()
1492                             .map(this::resolveSignalServiceAddress)
1493                             .collect(Collectors.toList());
1494                     var result = messageSender.sendMessage(addresses,
1495                             unidentifiedAccessHelper.getAccessFor(recipientIdList),
1496                             isRecipientUpdate,
1497                             message);
1498
1499                     for (var r : result) {
1500                         if (r.getIdentityFailure() != null) {
1501                             final var recipientId = resolveRecipient(r.getAddress());
1502                             final var newIdentity = account.getIdentityKeyStore()
1503                                     .saveIdentity(recipientId, r.getIdentityFailure().getIdentityKey(), new Date());
1504                             if (newIdentity) {
1505                                 account.getSessionStore().archiveSessions(recipientId);
1506                             }
1507                         }
1508                     }
1509
1510                     return new Pair<>(timestamp, result);
1511                 } catch (UntrustedIdentityException e) {
1512                     return new Pair<>(timestamp, List.of());
1513                 }
1514             } else {
1515                 // Send to all individually, so sync messages are sent correctly
1516                 messageBuilder.withProfileKey(account.getProfileKey().serialize());
1517                 var results = new ArrayList<SendMessageResult>(recipientIds.size());
1518                 for (var recipientId : recipientIds) {
1519                     final var contact = account.getContactStore().getContact(recipientId);
1520                     final var expirationTime = contact != null ? contact.getMessageExpirationTime() : 0;
1521                     messageBuilder.withExpiration(expirationTime);
1522                     message = messageBuilder.build();
1523                     results.add(sendMessage(recipientId, message));
1524                 }
1525                 return new Pair<>(timestamp, results);
1526             }
1527         } finally {
1528             if (message != null && message.isEndSession()) {
1529                 for (var recipient : recipientIds) {
1530                     handleEndSession(recipient);
1531                 }
1532             }
1533         }
1534     }
1535
1536     private Pair<Long, SendMessageResult> sendSelfMessage(
1537             SignalServiceDataMessage.Builder messageBuilder
1538     ) throws IOException {
1539         final var timestamp = System.currentTimeMillis();
1540         messageBuilder.withTimestamp(timestamp);
1541         getOrCreateMessagePipe();
1542         getOrCreateUnidentifiedMessagePipe();
1543         final var recipientId = account.getSelfRecipientId();
1544
1545         final var contact = account.getContactStore().getContact(recipientId);
1546         final var expirationTime = contact != null ? contact.getMessageExpirationTime() : 0;
1547         messageBuilder.withExpiration(expirationTime);
1548
1549         var message = messageBuilder.build();
1550         final var result = sendSelfMessage(message);
1551         return new Pair<>(timestamp, result);
1552     }
1553
1554     private SendMessageResult sendSelfMessage(SignalServiceDataMessage message) throws IOException {
1555         var messageSender = createMessageSender();
1556
1557         var recipientId = account.getSelfRecipientId();
1558
1559         final var unidentifiedAccess = unidentifiedAccessHelper.getAccessFor(recipientId);
1560         var recipient = resolveSignalServiceAddress(recipientId);
1561         var transcript = new SentTranscriptMessage(Optional.of(recipient),
1562                 message.getTimestamp(),
1563                 message,
1564                 message.getExpiresInSeconds(),
1565                 Map.of(recipient, unidentifiedAccess.isPresent()),
1566                 false);
1567         var syncMessage = SignalServiceSyncMessage.forSentTranscript(transcript);
1568
1569         try {
1570             var startTime = System.currentTimeMillis();
1571             messageSender.sendMessage(syncMessage, unidentifiedAccess);
1572             return SendMessageResult.success(recipient,
1573                     unidentifiedAccess.isPresent(),
1574                     false,
1575                     System.currentTimeMillis() - startTime);
1576         } catch (UntrustedIdentityException e) {
1577             return SendMessageResult.identityFailure(recipient, e.getIdentityKey());
1578         }
1579     }
1580
1581     private SendMessageResult sendMessage(
1582             RecipientId recipientId, SignalServiceDataMessage message
1583     ) throws IOException {
1584         var messageSender = createMessageSender();
1585
1586         final var address = resolveSignalServiceAddress(recipientId);
1587         try {
1588             try {
1589                 return messageSender.sendMessage(address, unidentifiedAccessHelper.getAccessFor(recipientId), message);
1590             } catch (UnregisteredUserException e) {
1591                 final var newRecipientId = refreshRegisteredUser(recipientId);
1592                 return messageSender.sendMessage(resolveSignalServiceAddress(newRecipientId),
1593                         unidentifiedAccessHelper.getAccessFor(newRecipientId),
1594                         message);
1595             }
1596         } catch (UntrustedIdentityException e) {
1597             return SendMessageResult.identityFailure(address, e.getIdentityKey());
1598         }
1599     }
1600
1601     private SendMessageResult sendNullMessage(RecipientId recipientId) throws IOException {
1602         var messageSender = createMessageSender();
1603
1604         final var address = resolveSignalServiceAddress(recipientId);
1605         try {
1606             try {
1607                 return messageSender.sendNullMessage(address, unidentifiedAccessHelper.getAccessFor(recipientId));
1608             } catch (UnregisteredUserException e) {
1609                 final var newRecipientId = refreshRegisteredUser(recipientId);
1610                 final var newAddress = resolveSignalServiceAddress(newRecipientId);
1611                 return messageSender.sendNullMessage(newAddress, unidentifiedAccessHelper.getAccessFor(newRecipientId));
1612             }
1613         } catch (UntrustedIdentityException e) {
1614             return SendMessageResult.identityFailure(address, e.getIdentityKey());
1615         }
1616     }
1617
1618     private SignalServiceContent decryptMessage(SignalServiceEnvelope envelope) throws InvalidMetadataMessageException, ProtocolInvalidMessageException, ProtocolDuplicateMessageException, ProtocolLegacyMessageException, ProtocolInvalidKeyIdException, InvalidMetadataVersionException, ProtocolInvalidVersionException, ProtocolNoSessionException, ProtocolInvalidKeyException, SelfSendException, UnsupportedDataMessageException, ProtocolUntrustedIdentityException {
1619         var cipher = new SignalServiceCipher(account.getSelfAddress(),
1620                 account.getSignalProtocolStore(),
1621                 sessionLock,
1622                 certificateValidator);
1623         return cipher.decrypt(envelope);
1624     }
1625
1626     private void handleEndSession(RecipientId recipientId) {
1627         account.getSessionStore().deleteAllSessions(recipientId);
1628     }
1629
1630     private List<HandleAction> handleSignalServiceDataMessage(
1631             SignalServiceDataMessage message,
1632             boolean isSync,
1633             SignalServiceAddress source,
1634             SignalServiceAddress destination,
1635             boolean ignoreAttachments
1636     ) {
1637         var actions = new ArrayList<HandleAction>();
1638         if (message.getGroupContext().isPresent()) {
1639             if (message.getGroupContext().get().getGroupV1().isPresent()) {
1640                 var groupInfo = message.getGroupContext().get().getGroupV1().get();
1641                 var groupId = GroupId.v1(groupInfo.getGroupId());
1642                 var group = getGroup(groupId);
1643                 if (group == null || group instanceof GroupInfoV1) {
1644                     var groupV1 = (GroupInfoV1) group;
1645                     switch (groupInfo.getType()) {
1646                         case UPDATE: {
1647                             if (groupV1 == null) {
1648                                 groupV1 = new GroupInfoV1(groupId);
1649                             }
1650
1651                             if (groupInfo.getAvatar().isPresent()) {
1652                                 var avatar = groupInfo.getAvatar().get();
1653                                 downloadGroupAvatar(avatar, groupV1.getGroupId());
1654                             }
1655
1656                             if (groupInfo.getName().isPresent()) {
1657                                 groupV1.name = groupInfo.getName().get();
1658                             }
1659
1660                             if (groupInfo.getMembers().isPresent()) {
1661                                 groupV1.addMembers(groupInfo.getMembers()
1662                                         .get()
1663                                         .stream()
1664                                         .map(this::resolveRecipient)
1665                                         .collect(Collectors.toSet()));
1666                             }
1667
1668                             account.getGroupStore().updateGroup(groupV1);
1669                             break;
1670                         }
1671                         case DELIVER:
1672                             if (groupV1 == null && !isSync) {
1673                                 actions.add(new SendGroupInfoRequestAction(source, groupId));
1674                             }
1675                             break;
1676                         case QUIT: {
1677                             if (groupV1 != null) {
1678                                 groupV1.removeMember(resolveRecipient(source));
1679                                 account.getGroupStore().updateGroup(groupV1);
1680                             }
1681                             break;
1682                         }
1683                         case REQUEST_INFO:
1684                             if (groupV1 != null && !isSync) {
1685                                 actions.add(new SendGroupInfoAction(source, groupV1.getGroupId()));
1686                             }
1687                             break;
1688                     }
1689                 } else {
1690                     // Received a group v1 message for a v2 group
1691                 }
1692             }
1693             if (message.getGroupContext().get().getGroupV2().isPresent()) {
1694                 final var groupContext = message.getGroupContext().get().getGroupV2().get();
1695                 final var groupMasterKey = groupContext.getMasterKey();
1696
1697                 getOrMigrateGroup(groupMasterKey,
1698                         groupContext.getRevision(),
1699                         groupContext.hasSignedGroupChange() ? groupContext.getSignedGroupChange() : null);
1700             }
1701         }
1702
1703         final var conversationPartnerAddress = isSync ? destination : source;
1704         if (conversationPartnerAddress != null && message.isEndSession()) {
1705             handleEndSession(resolveRecipient(conversationPartnerAddress));
1706         }
1707         if (message.isExpirationUpdate() || message.getBody().isPresent()) {
1708             if (message.getGroupContext().isPresent()) {
1709                 if (message.getGroupContext().get().getGroupV1().isPresent()) {
1710                     var groupInfo = message.getGroupContext().get().getGroupV1().get();
1711                     var group = account.getGroupStore().getOrCreateGroupV1(GroupId.v1(groupInfo.getGroupId()));
1712                     if (group != null) {
1713                         if (group.messageExpirationTime != message.getExpiresInSeconds()) {
1714                             group.messageExpirationTime = message.getExpiresInSeconds();
1715                             account.getGroupStore().updateGroup(group);
1716                         }
1717                     }
1718                 } else if (message.getGroupContext().get().getGroupV2().isPresent()) {
1719                     // disappearing message timer already stored in the DecryptedGroup
1720                 }
1721             } else if (conversationPartnerAddress != null) {
1722                 setExpirationTimer(resolveRecipient(conversationPartnerAddress), message.getExpiresInSeconds());
1723             }
1724         }
1725         if (!ignoreAttachments) {
1726             if (message.getAttachments().isPresent()) {
1727                 for (var attachment : message.getAttachments().get()) {
1728                     downloadAttachment(attachment);
1729                 }
1730             }
1731             if (message.getSharedContacts().isPresent()) {
1732                 for (var contact : message.getSharedContacts().get()) {
1733                     if (contact.getAvatar().isPresent()) {
1734                         downloadAttachment(contact.getAvatar().get().getAttachment());
1735                     }
1736                 }
1737             }
1738         }
1739         if (message.getProfileKey().isPresent() && message.getProfileKey().get().length == 32) {
1740             final ProfileKey profileKey;
1741             try {
1742                 profileKey = new ProfileKey(message.getProfileKey().get());
1743             } catch (InvalidInputException e) {
1744                 throw new AssertionError(e);
1745             }
1746             if (source.matches(account.getSelfAddress())) {
1747                 this.account.setProfileKey(profileKey);
1748             }
1749             this.account.getProfileStore().storeProfileKey(resolveRecipient(source), profileKey);
1750         }
1751         if (message.getPreviews().isPresent()) {
1752             final var previews = message.getPreviews().get();
1753             for (var preview : previews) {
1754                 if (preview.getImage().isPresent()) {
1755                     downloadAttachment(preview.getImage().get());
1756                 }
1757             }
1758         }
1759         if (message.getQuote().isPresent()) {
1760             final var quote = message.getQuote().get();
1761
1762             for (var quotedAttachment : quote.getAttachments()) {
1763                 final var thumbnail = quotedAttachment.getThumbnail();
1764                 if (thumbnail != null) {
1765                     downloadAttachment(thumbnail);
1766                 }
1767             }
1768         }
1769         if (message.getSticker().isPresent()) {
1770             final var messageSticker = message.getSticker().get();
1771             final var stickerPackId = StickerPackId.deserialize(messageSticker.getPackId());
1772             var sticker = account.getStickerStore().getSticker(stickerPackId);
1773             if (sticker == null) {
1774                 sticker = new Sticker(stickerPackId, messageSticker.getPackKey());
1775                 account.getStickerStore().updateSticker(sticker);
1776             }
1777         }
1778         return actions;
1779     }
1780
1781     private GroupInfoV2 getOrMigrateGroup(
1782             final GroupMasterKey groupMasterKey, final int revision, final byte[] signedGroupChange
1783     ) {
1784         final var groupSecretParams = GroupSecretParams.deriveFromMasterKey(groupMasterKey);
1785
1786         var groupId = GroupUtils.getGroupIdV2(groupSecretParams);
1787         var groupInfo = getGroup(groupId);
1788         final GroupInfoV2 groupInfoV2;
1789         if (groupInfo instanceof GroupInfoV1) {
1790             // Received a v2 group message for a v1 group, we need to locally migrate the group
1791             account.getGroupStore().deleteGroupV1(((GroupInfoV1) groupInfo).getGroupId());
1792             groupInfoV2 = new GroupInfoV2(groupId, groupMasterKey);
1793             logger.info("Locally migrated group {} to group v2, id: {}",
1794                     groupInfo.getGroupId().toBase64(),
1795                     groupInfoV2.getGroupId().toBase64());
1796         } else if (groupInfo instanceof GroupInfoV2) {
1797             groupInfoV2 = (GroupInfoV2) groupInfo;
1798         } else {
1799             groupInfoV2 = new GroupInfoV2(groupId, groupMasterKey);
1800         }
1801
1802         if (groupInfoV2.getGroup() == null || groupInfoV2.getGroup().getRevision() < revision) {
1803             DecryptedGroup group = null;
1804             if (signedGroupChange != null
1805                     && groupInfoV2.getGroup() != null
1806                     && groupInfoV2.getGroup().getRevision() + 1 == revision) {
1807                 group = groupV2Helper.getUpdatedDecryptedGroup(groupInfoV2.getGroup(),
1808                         signedGroupChange,
1809                         groupMasterKey);
1810             }
1811             if (group == null) {
1812                 group = groupV2Helper.getDecryptedGroup(groupSecretParams);
1813             }
1814             if (group != null) {
1815                 storeProfileKeysFromMembers(group);
1816                 final var avatar = group.getAvatar();
1817                 if (avatar != null && !avatar.isEmpty()) {
1818                     downloadGroupAvatar(groupId, groupSecretParams, avatar);
1819                 }
1820             }
1821             groupInfoV2.setGroup(group, this::resolveRecipient);
1822             account.getGroupStore().updateGroup(groupInfoV2);
1823         }
1824
1825         return groupInfoV2;
1826     }
1827
1828     private void storeProfileKeysFromMembers(final DecryptedGroup group) {
1829         for (var member : group.getMembersList()) {
1830             final var uuid = UuidUtil.parseOrThrow(member.getUuid().toByteArray());
1831             final var recipientId = account.getRecipientStore().resolveRecipient(uuid);
1832             try {
1833                 account.getProfileStore()
1834                         .storeProfileKey(recipientId, new ProfileKey(member.getProfileKey().toByteArray()));
1835             } catch (InvalidInputException ignored) {
1836             }
1837         }
1838     }
1839
1840     private void retryFailedReceivedMessages(ReceiveMessageHandler handler, boolean ignoreAttachments) {
1841         Set<HandleAction> queuedActions = new HashSet<>();
1842         for (var cachedMessage : account.getMessageCache().getCachedMessages()) {
1843             var actions = retryFailedReceivedMessage(handler, ignoreAttachments, cachedMessage);
1844             if (actions != null) {
1845                 queuedActions.addAll(actions);
1846             }
1847         }
1848         for (var action : queuedActions) {
1849             try {
1850                 action.execute(this);
1851             } catch (Throwable e) {
1852                 logger.warn("Message action failed.", e);
1853             }
1854         }
1855     }
1856
1857     private List<HandleAction> retryFailedReceivedMessage(
1858             final ReceiveMessageHandler handler, final boolean ignoreAttachments, final CachedMessage cachedMessage
1859     ) {
1860         var envelope = cachedMessage.loadEnvelope();
1861         if (envelope == null) {
1862             return null;
1863         }
1864         SignalServiceContent content = null;
1865         List<HandleAction> actions = null;
1866         if (!envelope.isReceipt()) {
1867             try {
1868                 content = decryptMessage(envelope);
1869             } catch (ProtocolUntrustedIdentityException e) {
1870                 if (!envelope.hasSource()) {
1871                     final var identifier = e.getSender();
1872                     final var recipientId = resolveRecipient(identifier);
1873                     try {
1874                         account.getMessageCache().replaceSender(cachedMessage, recipientId);
1875                     } catch (IOException ioException) {
1876                         logger.warn("Failed to move cached message to recipient folder: {}", ioException.getMessage());
1877                     }
1878                 }
1879                 return null;
1880             } catch (Exception er) {
1881                 // All other errors are not recoverable, so delete the cached message
1882                 cachedMessage.delete();
1883                 return null;
1884             }
1885             actions = handleMessage(envelope, content, ignoreAttachments);
1886         }
1887         handler.handleMessage(envelope, content, null);
1888         cachedMessage.delete();
1889         return actions;
1890     }
1891
1892     public void receiveMessages(
1893             long timeout,
1894             TimeUnit unit,
1895             boolean returnOnTimeout,
1896             boolean ignoreAttachments,
1897             ReceiveMessageHandler handler
1898     ) throws IOException {
1899         retryFailedReceivedMessages(handler, ignoreAttachments);
1900
1901         Set<HandleAction> queuedActions = null;
1902
1903         final var messagePipe = getOrCreateMessagePipe();
1904
1905         var hasCaughtUpWithOldMessages = false;
1906
1907         while (true) {
1908             SignalServiceEnvelope envelope;
1909             SignalServiceContent content = null;
1910             Exception exception = null;
1911             final CachedMessage[] cachedMessage = {null};
1912             try {
1913                 var result = messagePipe.readOrEmpty(timeout, unit, envelope1 -> {
1914                     final var recipientId = envelope1.hasSource()
1915                             ? resolveRecipient(envelope1.getSourceIdentifier())
1916                             : null;
1917                     // store message on disk, before acknowledging receipt to the server
1918                     cachedMessage[0] = account.getMessageCache().cacheMessage(envelope1, recipientId);
1919                 });
1920                 if (result.isPresent()) {
1921                     envelope = result.get();
1922                 } else {
1923                     // Received indicator that server queue is empty
1924                     hasCaughtUpWithOldMessages = true;
1925
1926                     if (queuedActions != null) {
1927                         for (var action : queuedActions) {
1928                             try {
1929                                 action.execute(this);
1930                             } catch (Throwable e) {
1931                                 logger.warn("Message action failed.", e);
1932                             }
1933                         }
1934                         queuedActions.clear();
1935                         queuedActions = null;
1936                     }
1937
1938                     // Continue to wait another timeout for new messages
1939                     continue;
1940                 }
1941             } catch (TimeoutException e) {
1942                 if (returnOnTimeout) return;
1943                 continue;
1944             }
1945
1946             if (envelope.hasSource()) {
1947                 // Store uuid if we don't have it already
1948                 // address/uuid in envelope is sent by server
1949                 resolveRecipientTrusted(envelope.getSourceAddress());
1950             }
1951             final var notAGroupMember = isNotAGroupMember(envelope, content);
1952             if (!envelope.isReceipt()) {
1953                 try {
1954                     content = decryptMessage(envelope);
1955                 } catch (Exception e) {
1956                     exception = e;
1957                 }
1958                 if (!envelope.hasSource() && content != null) {
1959                     // Store uuid if we don't have it already
1960                     // address/uuid is validated by unidentified sender certificate
1961                     resolveRecipientTrusted(content.getSender());
1962                 }
1963                 var actions = handleMessage(envelope, content, ignoreAttachments);
1964                 if (exception instanceof ProtocolInvalidMessageException) {
1965                     final var sender = resolveRecipient(((ProtocolInvalidMessageException) exception).getSender());
1966                     logger.debug("Received invalid message, queuing renew session action.");
1967                     actions.add(new RenewSessionAction(sender));
1968                 }
1969                 if (hasCaughtUpWithOldMessages) {
1970                     for (var action : actions) {
1971                         try {
1972                             action.execute(this);
1973                         } catch (Throwable e) {
1974                             logger.warn("Message action failed.", e);
1975                         }
1976                     }
1977                 } else {
1978                     if (queuedActions == null) {
1979                         queuedActions = new HashSet<>();
1980                     }
1981                     queuedActions.addAll(actions);
1982                 }
1983             }
1984             if (isMessageBlocked(envelope, content)) {
1985                 logger.info("Ignoring a message from blocked user/group: {}", envelope.getTimestamp());
1986             } else if (notAGroupMember) {
1987                 logger.info("Ignoring a message from a non group member: {}", envelope.getTimestamp());
1988             } else {
1989                 handler.handleMessage(envelope, content, exception);
1990             }
1991             if (cachedMessage[0] != null) {
1992                 if (exception instanceof ProtocolUntrustedIdentityException) {
1993                     final var identifier = ((ProtocolUntrustedIdentityException) exception).getSender();
1994                     final var recipientId = resolveRecipient(identifier);
1995                     queuedActions.add(new RetrieveProfileAction(recipientId));
1996                     if (!envelope.hasSource()) {
1997                         try {
1998                             cachedMessage[0] = account.getMessageCache().replaceSender(cachedMessage[0], recipientId);
1999                         } catch (IOException ioException) {
2000                             logger.warn("Failed to move cached message to recipient folder: {}",
2001                                     ioException.getMessage());
2002                         }
2003                     }
2004                 } else {
2005                     cachedMessage[0].delete();
2006                 }
2007             }
2008         }
2009     }
2010
2011     private boolean isMessageBlocked(
2012             SignalServiceEnvelope envelope, SignalServiceContent content
2013     ) {
2014         SignalServiceAddress source;
2015         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
2016             source = envelope.getSourceAddress();
2017         } else if (content != null) {
2018             source = content.getSender();
2019         } else {
2020             return false;
2021         }
2022         final var recipientId = resolveRecipient(source);
2023         if (isContactBlocked(recipientId)) {
2024             return true;
2025         }
2026
2027         if (content != null && content.getDataMessage().isPresent()) {
2028             var message = content.getDataMessage().get();
2029             if (message.getGroupContext().isPresent()) {
2030                 var groupId = GroupUtils.getGroupId(message.getGroupContext().get());
2031                 var group = getGroup(groupId);
2032                 if (group != null && group.isBlocked()) {
2033                     return true;
2034                 }
2035             }
2036         }
2037         return false;
2038     }
2039
2040     public boolean isContactBlocked(final String identifier) throws InvalidNumberException {
2041         final var recipientId = canonicalizeAndResolveRecipient(identifier);
2042         return isContactBlocked(recipientId);
2043     }
2044
2045     private boolean isContactBlocked(final RecipientId recipientId) {
2046         var sourceContact = account.getContactStore().getContact(recipientId);
2047         return sourceContact != null && sourceContact.isBlocked();
2048     }
2049
2050     private boolean isNotAGroupMember(
2051             SignalServiceEnvelope envelope, SignalServiceContent content
2052     ) {
2053         SignalServiceAddress source;
2054         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
2055             source = envelope.getSourceAddress();
2056         } else if (content != null) {
2057             source = content.getSender();
2058         } else {
2059             return false;
2060         }
2061
2062         if (content != null && content.getDataMessage().isPresent()) {
2063             var message = content.getDataMessage().get();
2064             if (message.getGroupContext().isPresent()) {
2065                 if (message.getGroupContext().get().getGroupV1().isPresent()) {
2066                     var groupInfo = message.getGroupContext().get().getGroupV1().get();
2067                     if (groupInfo.getType() == SignalServiceGroup.Type.QUIT) {
2068                         return false;
2069                     }
2070                 }
2071                 var groupId = GroupUtils.getGroupId(message.getGroupContext().get());
2072                 var group = getGroup(groupId);
2073                 if (group != null && !group.isMember(resolveRecipient(source))) {
2074                     return true;
2075                 }
2076             }
2077         }
2078         return false;
2079     }
2080
2081     private List<HandleAction> handleMessage(
2082             SignalServiceEnvelope envelope, SignalServiceContent content, boolean ignoreAttachments
2083     ) {
2084         var actions = new ArrayList<HandleAction>();
2085         if (content != null) {
2086             final SignalServiceAddress sender;
2087             if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
2088                 sender = envelope.getSourceAddress();
2089             } else {
2090                 sender = content.getSender();
2091             }
2092
2093             if (content.getDataMessage().isPresent()) {
2094                 var message = content.getDataMessage().get();
2095
2096                 if (content.isNeedsReceipt()) {
2097                     actions.add(new SendReceiptAction(sender, message.getTimestamp()));
2098                 }
2099
2100                 actions.addAll(handleSignalServiceDataMessage(message,
2101                         false,
2102                         sender,
2103                         account.getSelfAddress(),
2104                         ignoreAttachments));
2105             }
2106             if (content.getSyncMessage().isPresent()) {
2107                 account.setMultiDevice(true);
2108                 var syncMessage = content.getSyncMessage().get();
2109                 if (syncMessage.getSent().isPresent()) {
2110                     var message = syncMessage.getSent().get();
2111                     final var destination = message.getDestination().orNull();
2112                     actions.addAll(handleSignalServiceDataMessage(message.getMessage(),
2113                             true,
2114                             sender,
2115                             destination,
2116                             ignoreAttachments));
2117                 }
2118                 if (syncMessage.getRequest().isPresent() && account.isMasterDevice()) {
2119                     var rm = syncMessage.getRequest().get();
2120                     if (rm.isContactsRequest()) {
2121                         actions.add(SendSyncContactsAction.create());
2122                     }
2123                     if (rm.isGroupsRequest()) {
2124                         actions.add(SendSyncGroupsAction.create());
2125                     }
2126                     if (rm.isBlockedListRequest()) {
2127                         actions.add(SendSyncBlockedListAction.create());
2128                     }
2129                     // TODO Handle rm.isConfigurationRequest(); rm.isKeysRequest();
2130                 }
2131                 if (syncMessage.getGroups().isPresent()) {
2132                     File tmpFile = null;
2133                     try {
2134                         tmpFile = IOUtils.createTempFile();
2135                         final var groupsMessage = syncMessage.getGroups().get();
2136                         try (var attachmentAsStream = retrieveAttachmentAsStream(groupsMessage.asPointer(), tmpFile)) {
2137                             var s = new DeviceGroupsInputStream(attachmentAsStream);
2138                             DeviceGroup g;
2139                             while ((g = s.read()) != null) {
2140                                 var syncGroup = account.getGroupStore().getOrCreateGroupV1(GroupId.v1(g.getId()));
2141                                 if (syncGroup != null) {
2142                                     if (g.getName().isPresent()) {
2143                                         syncGroup.name = g.getName().get();
2144                                     }
2145                                     syncGroup.addMembers(g.getMembers()
2146                                             .stream()
2147                                             .map(this::resolveRecipient)
2148                                             .collect(Collectors.toSet()));
2149                                     if (!g.isActive()) {
2150                                         syncGroup.removeMember(account.getSelfRecipientId());
2151                                     } else {
2152                                         // Add ourself to the member set as it's marked as active
2153                                         syncGroup.addMembers(List.of(account.getSelfRecipientId()));
2154                                     }
2155                                     syncGroup.blocked = g.isBlocked();
2156                                     if (g.getColor().isPresent()) {
2157                                         syncGroup.color = g.getColor().get();
2158                                     }
2159
2160                                     if (g.getAvatar().isPresent()) {
2161                                         downloadGroupAvatar(g.getAvatar().get(), syncGroup.getGroupId());
2162                                     }
2163                                     syncGroup.archived = g.isArchived();
2164                                     account.getGroupStore().updateGroup(syncGroup);
2165                                 }
2166                             }
2167                         }
2168                     } catch (Exception e) {
2169                         logger.warn("Failed to handle received sync groups “{}”, ignoring: {}",
2170                                 tmpFile,
2171                                 e.getMessage());
2172                     } finally {
2173                         if (tmpFile != null) {
2174                             try {
2175                                 Files.delete(tmpFile.toPath());
2176                             } catch (IOException e) {
2177                                 logger.warn("Failed to delete received groups temp file “{}”, ignoring: {}",
2178                                         tmpFile,
2179                                         e.getMessage());
2180                             }
2181                         }
2182                     }
2183                 }
2184                 if (syncMessage.getBlockedList().isPresent()) {
2185                     final var blockedListMessage = syncMessage.getBlockedList().get();
2186                     for (var address : blockedListMessage.getAddresses()) {
2187                         setContactBlocked(resolveRecipient(address), true);
2188                     }
2189                     for (var groupId : blockedListMessage.getGroupIds()
2190                             .stream()
2191                             .map(GroupId::unknownVersion)
2192                             .collect(Collectors.toSet())) {
2193                         try {
2194                             setGroupBlocked(groupId, true);
2195                         } catch (GroupNotFoundException e) {
2196                             logger.warn("BlockedListMessage contained groupID that was not found in GroupStore: {}",
2197                                     groupId.toBase64());
2198                         }
2199                     }
2200                 }
2201                 if (syncMessage.getContacts().isPresent()) {
2202                     File tmpFile = null;
2203                     try {
2204                         tmpFile = IOUtils.createTempFile();
2205                         final var contactsMessage = syncMessage.getContacts().get();
2206                         try (var attachmentAsStream = retrieveAttachmentAsStream(contactsMessage.getContactsStream()
2207                                 .asPointer(), tmpFile)) {
2208                             var s = new DeviceContactsInputStream(attachmentAsStream);
2209                             DeviceContact c;
2210                             while ((c = s.read()) != null) {
2211                                 if (c.getAddress().matches(account.getSelfAddress()) && c.getProfileKey().isPresent()) {
2212                                     account.setProfileKey(c.getProfileKey().get());
2213                                 }
2214                                 final var recipientId = resolveRecipientTrusted(c.getAddress());
2215                                 var contact = account.getContactStore().getContact(recipientId);
2216                                 final var builder = contact == null
2217                                         ? Contact.newBuilder()
2218                                         : Contact.newBuilder(contact);
2219                                 if (c.getName().isPresent()) {
2220                                     builder.withName(c.getName().get());
2221                                 }
2222                                 if (c.getColor().isPresent()) {
2223                                     builder.withColor(c.getColor().get());
2224                                 }
2225                                 if (c.getProfileKey().isPresent()) {
2226                                     account.getProfileStore().storeProfileKey(recipientId, c.getProfileKey().get());
2227                                 }
2228                                 if (c.getVerified().isPresent()) {
2229                                     final var verifiedMessage = c.getVerified().get();
2230                                     account.getIdentityKeyStore()
2231                                             .setIdentityTrustLevel(resolveRecipientTrusted(verifiedMessage.getDestination()),
2232                                                     verifiedMessage.getIdentityKey(),
2233                                                     TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
2234                                 }
2235                                 if (c.getExpirationTimer().isPresent()) {
2236                                     builder.withMessageExpirationTime(c.getExpirationTimer().get());
2237                                 }
2238                                 builder.withBlocked(c.isBlocked());
2239                                 builder.withArchived(c.isArchived());
2240                                 account.getContactStore().storeContact(recipientId, builder.build());
2241
2242                                 if (c.getAvatar().isPresent()) {
2243                                     downloadContactAvatar(c.getAvatar().get(), c.getAddress());
2244                                 }
2245                             }
2246                         }
2247                     } catch (Exception e) {
2248                         logger.warn("Failed to handle received sync contacts “{}”, ignoring: {}",
2249                                 tmpFile,
2250                                 e.getMessage());
2251                     } finally {
2252                         if (tmpFile != null) {
2253                             try {
2254                                 Files.delete(tmpFile.toPath());
2255                             } catch (IOException e) {
2256                                 logger.warn("Failed to delete received contacts temp file “{}”, ignoring: {}",
2257                                         tmpFile,
2258                                         e.getMessage());
2259                             }
2260                         }
2261                     }
2262                 }
2263                 if (syncMessage.getVerified().isPresent()) {
2264                     final var verifiedMessage = syncMessage.getVerified().get();
2265                     account.getIdentityKeyStore()
2266                             .setIdentityTrustLevel(resolveRecipientTrusted(verifiedMessage.getDestination()),
2267                                     verifiedMessage.getIdentityKey(),
2268                                     TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
2269                 }
2270                 if (syncMessage.getStickerPackOperations().isPresent()) {
2271                     final var stickerPackOperationMessages = syncMessage.getStickerPackOperations().get();
2272                     for (var m : stickerPackOperationMessages) {
2273                         if (!m.getPackId().isPresent()) {
2274                             continue;
2275                         }
2276                         final var stickerPackId = StickerPackId.deserialize(m.getPackId().get());
2277                         var sticker = account.getStickerStore().getSticker(stickerPackId);
2278                         if (sticker == null) {
2279                             if (!m.getPackKey().isPresent()) {
2280                                 continue;
2281                             }
2282                             sticker = new Sticker(stickerPackId, m.getPackKey().get());
2283                         }
2284                         sticker.setInstalled(!m.getType().isPresent()
2285                                 || m.getType().get() == StickerPackOperationMessage.Type.INSTALL);
2286                         account.getStickerStore().updateSticker(sticker);
2287                     }
2288                 }
2289                 if (syncMessage.getFetchType().isPresent()) {
2290                     switch (syncMessage.getFetchType().get()) {
2291                         case LOCAL_PROFILE:
2292                             getRecipientProfile(account.getSelfRecipientId(), true);
2293                         case STORAGE_MANIFEST:
2294                             // TODO
2295                     }
2296                 }
2297                 if (syncMessage.getKeys().isPresent()) {
2298                     final var keysMessage = syncMessage.getKeys().get();
2299                     if (keysMessage.getStorageService().isPresent()) {
2300                         final var storageKey = keysMessage.getStorageService().get();
2301                         account.setStorageKey(storageKey);
2302                     }
2303                 }
2304                 if (syncMessage.getConfiguration().isPresent()) {
2305                     // TODO
2306                 }
2307             }
2308         }
2309         return actions;
2310     }
2311
2312     private void downloadContactAvatar(SignalServiceAttachment avatar, SignalServiceAddress address) {
2313         try {
2314             avatarStore.storeContactAvatar(address, outputStream -> retrieveAttachment(avatar, outputStream));
2315         } catch (IOException e) {
2316             logger.warn("Failed to download avatar for contact {}, ignoring: {}", address, e.getMessage());
2317         }
2318     }
2319
2320     private void downloadGroupAvatar(SignalServiceAttachment avatar, GroupId groupId) {
2321         try {
2322             avatarStore.storeGroupAvatar(groupId, outputStream -> retrieveAttachment(avatar, outputStream));
2323         } catch (IOException e) {
2324             logger.warn("Failed to download avatar for group {}, ignoring: {}", groupId.toBase64(), e.getMessage());
2325         }
2326     }
2327
2328     private void downloadGroupAvatar(GroupId groupId, GroupSecretParams groupSecretParams, String cdnKey) {
2329         try {
2330             avatarStore.storeGroupAvatar(groupId,
2331                     outputStream -> retrieveGroupV2Avatar(groupSecretParams, cdnKey, outputStream));
2332         } catch (IOException e) {
2333             logger.warn("Failed to download avatar for group {}, ignoring: {}", groupId.toBase64(), e.getMessage());
2334         }
2335     }
2336
2337     private void downloadProfileAvatar(
2338             SignalServiceAddress address, String avatarPath, ProfileKey profileKey
2339     ) {
2340         try {
2341             avatarStore.storeProfileAvatar(address,
2342                     outputStream -> retrieveProfileAvatar(avatarPath, profileKey, outputStream));
2343         } catch (Throwable e) {
2344             logger.warn("Failed to download profile avatar, ignoring: {}", e.getMessage());
2345         }
2346     }
2347
2348     public File getAttachmentFile(SignalServiceAttachmentRemoteId attachmentId) {
2349         return attachmentStore.getAttachmentFile(attachmentId);
2350     }
2351
2352     private void downloadAttachment(final SignalServiceAttachment attachment) {
2353         if (!attachment.isPointer()) {
2354             logger.warn("Invalid state, can't store an attachment stream.");
2355         }
2356
2357         var pointer = attachment.asPointer();
2358         if (pointer.getPreview().isPresent()) {
2359             final var preview = pointer.getPreview().get();
2360             try {
2361                 attachmentStore.storeAttachmentPreview(pointer.getRemoteId(),
2362                         outputStream -> outputStream.write(preview, 0, preview.length));
2363             } catch (IOException e) {
2364                 logger.warn("Failed to download attachment preview, ignoring: {}", e.getMessage());
2365             }
2366         }
2367
2368         try {
2369             attachmentStore.storeAttachment(pointer.getRemoteId(),
2370                     outputStream -> retrieveAttachmentPointer(pointer, outputStream));
2371         } catch (IOException e) {
2372             logger.warn("Failed to download attachment ({}), ignoring: {}", pointer.getRemoteId(), e.getMessage());
2373         }
2374     }
2375
2376     private void retrieveGroupV2Avatar(
2377             GroupSecretParams groupSecretParams, String cdnKey, OutputStream outputStream
2378     ) throws IOException {
2379         var groupOperations = groupsV2Operations.forGroup(groupSecretParams);
2380
2381         var tmpFile = IOUtils.createTempFile();
2382         try (InputStream input = messageReceiver.retrieveGroupsV2ProfileAvatar(cdnKey,
2383                 tmpFile,
2384                 ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
2385             var encryptedData = IOUtils.readFully(input);
2386
2387             var decryptedData = groupOperations.decryptAvatar(encryptedData);
2388             outputStream.write(decryptedData);
2389         } finally {
2390             try {
2391                 Files.delete(tmpFile.toPath());
2392             } catch (IOException e) {
2393                 logger.warn("Failed to delete received group avatar temp file “{}”, ignoring: {}",
2394                         tmpFile,
2395                         e.getMessage());
2396             }
2397         }
2398     }
2399
2400     private void retrieveProfileAvatar(
2401             String avatarPath, ProfileKey profileKey, OutputStream outputStream
2402     ) throws IOException {
2403         var tmpFile = IOUtils.createTempFile();
2404         try (var input = messageReceiver.retrieveProfileAvatar(avatarPath,
2405                 tmpFile,
2406                 profileKey,
2407                 ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
2408             // Use larger buffer size to prevent AssertionError: Need: 12272 but only have: 8192 ...
2409             IOUtils.copyStream(input, outputStream, (int) ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE);
2410         } finally {
2411             try {
2412                 Files.delete(tmpFile.toPath());
2413             } catch (IOException e) {
2414                 logger.warn("Failed to delete received profile avatar temp file “{}”, ignoring: {}",
2415                         tmpFile,
2416                         e.getMessage());
2417             }
2418         }
2419     }
2420
2421     private void retrieveAttachment(
2422             final SignalServiceAttachment attachment, final OutputStream outputStream
2423     ) throws IOException {
2424         if (attachment.isPointer()) {
2425             var pointer = attachment.asPointer();
2426             retrieveAttachmentPointer(pointer, outputStream);
2427         } else {
2428             var stream = attachment.asStream();
2429             IOUtils.copyStream(stream.getInputStream(), outputStream);
2430         }
2431     }
2432
2433     private void retrieveAttachmentPointer(
2434             SignalServiceAttachmentPointer pointer, OutputStream outputStream
2435     ) throws IOException {
2436         var tmpFile = IOUtils.createTempFile();
2437         try (var input = retrieveAttachmentAsStream(pointer, tmpFile)) {
2438             IOUtils.copyStream(input, outputStream);
2439         } catch (MissingConfigurationException | InvalidMessageException e) {
2440             throw new IOException(e);
2441         } finally {
2442             try {
2443                 Files.delete(tmpFile.toPath());
2444             } catch (IOException e) {
2445                 logger.warn("Failed to delete received attachment temp file “{}”, ignoring: {}",
2446                         tmpFile,
2447                         e.getMessage());
2448             }
2449         }
2450     }
2451
2452     private InputStream retrieveAttachmentAsStream(
2453             SignalServiceAttachmentPointer pointer, File tmpFile
2454     ) throws IOException, InvalidMessageException, MissingConfigurationException {
2455         return messageReceiver.retrieveAttachment(pointer, tmpFile, ServiceConfig.MAX_ATTACHMENT_SIZE);
2456     }
2457
2458     void sendGroups() throws IOException, UntrustedIdentityException {
2459         var groupsFile = IOUtils.createTempFile();
2460
2461         try {
2462             try (OutputStream fos = new FileOutputStream(groupsFile)) {
2463                 var out = new DeviceGroupsOutputStream(fos);
2464                 for (var record : getGroups()) {
2465                     if (record instanceof GroupInfoV1) {
2466                         var groupInfo = (GroupInfoV1) record;
2467                         out.write(new DeviceGroup(groupInfo.getGroupId().serialize(),
2468                                 Optional.fromNullable(groupInfo.name),
2469                                 groupInfo.getMembers()
2470                                         .stream()
2471                                         .map(this::resolveSignalServiceAddress)
2472                                         .collect(Collectors.toList()),
2473                                 createGroupAvatarAttachment(groupInfo.getGroupId()),
2474                                 groupInfo.isMember(account.getSelfRecipientId()),
2475                                 Optional.of(groupInfo.messageExpirationTime),
2476                                 Optional.fromNullable(groupInfo.color),
2477                                 groupInfo.blocked,
2478                                 Optional.absent(),
2479                                 groupInfo.archived));
2480                     }
2481                 }
2482             }
2483
2484             if (groupsFile.exists() && groupsFile.length() > 0) {
2485                 try (var groupsFileStream = new FileInputStream(groupsFile)) {
2486                     var attachmentStream = SignalServiceAttachment.newStreamBuilder()
2487                             .withStream(groupsFileStream)
2488                             .withContentType("application/octet-stream")
2489                             .withLength(groupsFile.length())
2490                             .build();
2491
2492                     sendSyncMessage(SignalServiceSyncMessage.forGroups(attachmentStream));
2493                 }
2494             }
2495         } finally {
2496             try {
2497                 Files.delete(groupsFile.toPath());
2498             } catch (IOException e) {
2499                 logger.warn("Failed to delete groups temp file “{}”, ignoring: {}", groupsFile, e.getMessage());
2500             }
2501         }
2502     }
2503
2504     public void sendContacts() throws IOException, UntrustedIdentityException {
2505         var contactsFile = IOUtils.createTempFile();
2506
2507         try {
2508             try (OutputStream fos = new FileOutputStream(contactsFile)) {
2509                 var out = new DeviceContactsOutputStream(fos);
2510                 for (var contactPair : account.getContactStore().getContacts()) {
2511                     final var recipientId = contactPair.first();
2512                     final var contact = contactPair.second();
2513                     final var address = resolveSignalServiceAddress(recipientId);
2514
2515                     var currentIdentity = account.getIdentityKeyStore().getIdentity(recipientId);
2516                     VerifiedMessage verifiedMessage = null;
2517                     if (currentIdentity != null) {
2518                         verifiedMessage = new VerifiedMessage(address,
2519                                 currentIdentity.getIdentityKey(),
2520                                 currentIdentity.getTrustLevel().toVerifiedState(),
2521                                 currentIdentity.getDateAdded().getTime());
2522                     }
2523
2524                     var profileKey = account.getProfileStore().getProfileKey(recipientId);
2525                     out.write(new DeviceContact(address,
2526                             Optional.fromNullable(contact.getName()),
2527                             createContactAvatarAttachment(address),
2528                             Optional.fromNullable(contact.getColor()),
2529                             Optional.fromNullable(verifiedMessage),
2530                             Optional.fromNullable(profileKey),
2531                             contact.isBlocked(),
2532                             Optional.of(contact.getMessageExpirationTime()),
2533                             Optional.absent(),
2534                             contact.isArchived()));
2535                 }
2536
2537                 if (account.getProfileKey() != null) {
2538                     // Send our own profile key as well
2539                     out.write(new DeviceContact(account.getSelfAddress(),
2540                             Optional.absent(),
2541                             Optional.absent(),
2542                             Optional.absent(),
2543                             Optional.absent(),
2544                             Optional.of(account.getProfileKey()),
2545                             false,
2546                             Optional.absent(),
2547                             Optional.absent(),
2548                             false));
2549                 }
2550             }
2551
2552             if (contactsFile.exists() && contactsFile.length() > 0) {
2553                 try (var contactsFileStream = new FileInputStream(contactsFile)) {
2554                     var attachmentStream = SignalServiceAttachment.newStreamBuilder()
2555                             .withStream(contactsFileStream)
2556                             .withContentType("application/octet-stream")
2557                             .withLength(contactsFile.length())
2558                             .build();
2559
2560                     sendSyncMessage(SignalServiceSyncMessage.forContacts(new ContactsMessage(attachmentStream, true)));
2561                 }
2562             }
2563         } finally {
2564             try {
2565                 Files.delete(contactsFile.toPath());
2566             } catch (IOException e) {
2567                 logger.warn("Failed to delete contacts temp file “{}”, ignoring: {}", contactsFile, e.getMessage());
2568             }
2569         }
2570     }
2571
2572     void sendBlockedList() throws IOException, UntrustedIdentityException {
2573         var addresses = new ArrayList<SignalServiceAddress>();
2574         for (var record : account.getContactStore().getContacts()) {
2575             if (record.second().isBlocked()) {
2576                 addresses.add(resolveSignalServiceAddress(record.first()));
2577             }
2578         }
2579         var groupIds = new ArrayList<byte[]>();
2580         for (var record : getGroups()) {
2581             if (record.isBlocked()) {
2582                 groupIds.add(record.getGroupId().serialize());
2583             }
2584         }
2585         sendSyncMessage(SignalServiceSyncMessage.forBlocked(new BlockedListMessage(addresses, groupIds)));
2586     }
2587
2588     private void sendVerifiedMessage(
2589             SignalServiceAddress destination, IdentityKey identityKey, TrustLevel trustLevel
2590     ) throws IOException, UntrustedIdentityException {
2591         var verifiedMessage = new VerifiedMessage(destination,
2592                 identityKey,
2593                 trustLevel.toVerifiedState(),
2594                 System.currentTimeMillis());
2595         sendSyncMessage(SignalServiceSyncMessage.forVerified(verifiedMessage));
2596     }
2597
2598     public List<Pair<RecipientId, Contact>> getContacts() {
2599         return account.getContactStore().getContacts();
2600     }
2601
2602     public String getContactOrProfileName(String number) throws InvalidNumberException {
2603         final var recipientId = canonicalizeAndResolveRecipient(number);
2604         final var recipient = account.getRecipientStore().getRecipient(recipientId);
2605         if (recipient == null) {
2606             return null;
2607         }
2608
2609         if (recipient.getContact() != null && !Util.isEmpty(recipient.getContact().getName())) {
2610             return recipient.getContact().getName();
2611         }
2612
2613         if (recipient.getProfile() != null && recipient.getProfile() != null) {
2614             return recipient.getProfile().getDisplayName();
2615         }
2616
2617         return null;
2618     }
2619
2620     public GroupInfo getGroup(GroupId groupId) {
2621         final var group = account.getGroupStore().getGroup(groupId);
2622         if (group instanceof GroupInfoV2 && ((GroupInfoV2) group).getGroup() == null) {
2623             final var groupSecretParams = GroupSecretParams.deriveFromMasterKey(((GroupInfoV2) group).getMasterKey());
2624             ((GroupInfoV2) group).setGroup(groupV2Helper.getDecryptedGroup(groupSecretParams), this::resolveRecipient);
2625             account.getGroupStore().updateGroup(group);
2626         }
2627         return group;
2628     }
2629
2630     public List<IdentityInfo> getIdentities() {
2631         return account.getIdentityKeyStore().getIdentities();
2632     }
2633
2634     public List<IdentityInfo> getIdentities(String number) throws InvalidNumberException {
2635         final var identity = account.getIdentityKeyStore().getIdentity(canonicalizeAndResolveRecipient(number));
2636         return identity == null ? List.of() : List.of(identity);
2637     }
2638
2639     /**
2640      * Trust this the identity with this fingerprint
2641      *
2642      * @param name        username of the identity
2643      * @param fingerprint Fingerprint
2644      */
2645     public boolean trustIdentityVerified(String name, byte[] fingerprint) throws InvalidNumberException {
2646         var recipientId = canonicalizeAndResolveRecipient(name);
2647         return trustIdentity(recipientId,
2648                 identityKey -> Arrays.equals(identityKey.serialize(), fingerprint),
2649                 TrustLevel.TRUSTED_VERIFIED);
2650     }
2651
2652     /**
2653      * Trust this the identity with this safety number
2654      *
2655      * @param name         username of the identity
2656      * @param safetyNumber Safety number
2657      */
2658     public boolean trustIdentityVerifiedSafetyNumber(String name, String safetyNumber) throws InvalidNumberException {
2659         var recipientId = canonicalizeAndResolveRecipient(name);
2660         var address = account.getRecipientStore().resolveServiceAddress(recipientId);
2661         return trustIdentity(recipientId,
2662                 identityKey -> safetyNumber.equals(computeSafetyNumber(address, identityKey)),
2663                 TrustLevel.TRUSTED_VERIFIED);
2664     }
2665
2666     /**
2667      * Trust all keys of this identity without verification
2668      *
2669      * @param name username of the identity
2670      */
2671     public boolean trustIdentityAllKeys(String name) throws InvalidNumberException {
2672         var recipientId = canonicalizeAndResolveRecipient(name);
2673         return trustIdentity(recipientId, identityKey -> true, TrustLevel.TRUSTED_UNVERIFIED);
2674     }
2675
2676     private boolean trustIdentity(
2677             RecipientId recipientId, Function<IdentityKey, Boolean> verifier, TrustLevel trustLevel
2678     ) {
2679         var identity = account.getIdentityKeyStore().getIdentity(recipientId);
2680         if (identity == null) {
2681             return false;
2682         }
2683
2684         if (!verifier.apply(identity.getIdentityKey())) {
2685             return false;
2686         }
2687
2688         account.getIdentityKeyStore().setIdentityTrustLevel(recipientId, identity.getIdentityKey(), trustLevel);
2689         try {
2690             var address = account.getRecipientStore().resolveServiceAddress(recipientId);
2691             sendVerifiedMessage(address, identity.getIdentityKey(), trustLevel);
2692         } catch (IOException | UntrustedIdentityException e) {
2693             logger.warn("Failed to send verification sync message: {}", e.getMessage());
2694         }
2695
2696         return true;
2697     }
2698
2699     public String computeSafetyNumber(
2700             SignalServiceAddress theirAddress, IdentityKey theirIdentityKey
2701     ) {
2702         return Utils.computeSafetyNumber(ServiceConfig.capabilities.isUuid(),
2703                 account.getSelfAddress(),
2704                 getIdentityKeyPair().getPublicKey(),
2705                 theirAddress,
2706                 theirIdentityKey);
2707     }
2708
2709     @Deprecated
2710     public SignalServiceAddress resolveSignalServiceAddress(String identifier) {
2711         var address = Utils.getSignalServiceAddressFromIdentifier(identifier);
2712
2713         return resolveSignalServiceAddress(address);
2714     }
2715
2716     @Deprecated
2717     public SignalServiceAddress resolveSignalServiceAddress(SignalServiceAddress address) {
2718         if (address.matches(account.getSelfAddress())) {
2719             return account.getSelfAddress();
2720         }
2721
2722         return account.getRecipientStore().resolveServiceAddress(address);
2723     }
2724
2725     public SignalServiceAddress resolveSignalServiceAddress(RecipientId recipientId) {
2726         return account.getRecipientStore().resolveServiceAddress(recipientId);
2727     }
2728
2729     public RecipientId canonicalizeAndResolveRecipient(String identifier) throws InvalidNumberException {
2730         var canonicalizedNumber = UuidUtil.isUuid(identifier)
2731                 ? identifier
2732                 : PhoneNumberFormatter.formatNumber(identifier, account.getUsername());
2733
2734         return resolveRecipient(canonicalizedNumber);
2735     }
2736
2737     private RecipientId resolveRecipient(final String identifier) {
2738         var address = Utils.getSignalServiceAddressFromIdentifier(identifier);
2739
2740         return resolveRecipient(address);
2741     }
2742
2743     public RecipientId resolveRecipient(SignalServiceAddress address) {
2744         return account.getRecipientStore().resolveRecipient(address);
2745     }
2746
2747     private RecipientId resolveRecipientTrusted(SignalServiceAddress address) {
2748         return account.getRecipientStore().resolveRecipientTrusted(address);
2749     }
2750
2751     @Override
2752     public void close() throws IOException {
2753         close(true);
2754     }
2755
2756     void close(boolean closeAccount) throws IOException {
2757         executor.shutdown();
2758
2759         if (messagePipe != null) {
2760             messagePipe.shutdown();
2761             messagePipe = null;
2762         }
2763
2764         if (unidentifiedMessagePipe != null) {
2765             unidentifiedMessagePipe.shutdown();
2766             unidentifiedMessagePipe = null;
2767         }
2768
2769         if (closeAccount && account != null) {
2770             account.close();
2771         }
2772         account = null;
2773     }
2774
2775     public interface ReceiveMessageHandler {
2776
2777         void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent decryptedContent, Throwable e);
2778     }
2779 }