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.GroupLinkState;
  27 import org.asamk.signal.manager.groups.GroupNotFoundException;
  28 import org.asamk.signal.manager.groups.GroupUtils;
  29 import org.asamk.signal.manager.groups.NotAGroupMemberException;
  30 import org.asamk.signal.manager.helper.GroupV2Helper;
  31 import org.asamk.signal.manager.helper.PinHelper;
  32 import org.asamk.signal.manager.helper.ProfileHelper;
  33 import org.asamk.signal.manager.helper.UnidentifiedAccessHelper;
  34 import org.asamk.signal.manager.storage.SignalAccount;
  35 import org.asamk.signal.manager.storage.groups.GroupInfo;
  36 import org.asamk.signal.manager.storage.groups.GroupInfoV1;
  37 import org.asamk.signal.manager.storage.groups.GroupInfoV2;
  38 import org.asamk.signal.manager.storage.identities.IdentityInfo;
  39 import org.asamk.signal.manager.storage.messageCache.CachedMessage;
  40 import org.asamk.signal.manager.storage.recipients.Contact;
  41 import org.asamk.signal.manager.storage.recipients.Profile;
  42 import org.asamk.signal.manager.storage.recipients.RecipientId;
  43 import org.asamk.signal.manager.storage.stickers.Sticker;
  44 import org.asamk.signal.manager.storage.stickers.StickerPackId;
  45 import org.asamk.signal.manager.util.AttachmentUtils;
  46 import org.asamk.signal.manager.util.IOUtils;
  47 import org.asamk.signal.manager.util.KeyUtils;
  48 import org.asamk.signal.manager.util.ProfileUtils;
  49 import org.asamk.signal.manager.util.StickerUtils;
  50 import org.asamk.signal.manager.util.Utils;
  51 import org.signal.libsignal.metadata.InvalidMetadataMessageException;
  52 import org.signal.libsignal.metadata.InvalidMetadataVersionException;
  53 import org.signal.libsignal.metadata.ProtocolDuplicateMessageException;
  54 import org.signal.libsignal.metadata.ProtocolInvalidKeyException;
  55 import org.signal.libsignal.metadata.ProtocolInvalidKeyIdException;
  56 import org.signal.libsignal.metadata.ProtocolInvalidMessageException;
  57 import org.signal.libsignal.metadata.ProtocolInvalidVersionException;
  58 import org.signal.libsignal.metadata.ProtocolLegacyMessageException;
  59 import org.signal.libsignal.metadata.ProtocolNoSessionException;
  60 import org.signal.libsignal.metadata.ProtocolUntrustedIdentityException;
  61 import org.signal.libsignal.metadata.SelfSendException;
  62 import org.signal.libsignal.metadata.certificate.CertificateValidator;
  63 import org.signal.storageservice.protos.groups.GroupChange;
  64 import org.signal.storageservice.protos.groups.local.DecryptedGroup;
  65 import org.signal.zkgroup.InvalidInputException;
  66 import org.signal.zkgroup.VerificationFailedException;
  67 import org.signal.zkgroup.groups.GroupMasterKey;
  68 import org.signal.zkgroup.groups.GroupSecretParams;
  69 import org.signal.zkgroup.profiles.ClientZkProfileOperations;
  70 import org.signal.zkgroup.profiles.ProfileKey;
  71 import org.signal.zkgroup.profiles.ProfileKeyCredential;
  72 import org.slf4j.Logger;
  73 import org.slf4j.LoggerFactory;
  74 import org.whispersystems.libsignal.IdentityKey;
  75 import org.whispersystems.libsignal.IdentityKeyPair;
  76 import org.whispersystems.libsignal.InvalidKeyException;
  77 import org.whispersystems.libsignal.InvalidMessageException;
  78 import org.whispersystems.libsignal.ecc.ECPublicKey;
  79 import org.whispersystems.libsignal.state.PreKeyRecord;
  80 import org.whispersystems.libsignal.state.SignedPreKeyRecord;
  81 import org.whispersystems.libsignal.util.Pair;
  82 import org.whispersystems.libsignal.util.guava.Optional;
  83 import org.whispersystems.signalservice.api.SignalServiceAccountManager;
  84 import org.whispersystems.signalservice.api.SignalServiceMessagePipe;
  85 import org.whispersystems.signalservice.api.SignalServiceMessageReceiver;
  86 import org.whispersystems.signalservice.api.SignalServiceMessageSender;
  87 import org.whispersystems.signalservice.api.SignalSessionLock;
  88 import org.whispersystems.signalservice.api.crypto.SignalServiceCipher;
  89 import org.whispersystems.signalservice.api.crypto.UntrustedIdentityException;
  90 import org.whispersystems.signalservice.api.groupsv2.ClientZkOperations;
  91 import org.whispersystems.signalservice.api.groupsv2.GroupLinkNotActiveException;
  92 import org.whispersystems.signalservice.api.groupsv2.GroupsV2Api;
  93 import org.whispersystems.signalservice.api.groupsv2.GroupsV2AuthorizationString;
  94 import org.whispersystems.signalservice.api.groupsv2.GroupsV2Operations;
  95 import org.whispersystems.signalservice.api.messages.SendMessageResult;
  96 import org.whispersystems.signalservice.api.messages.SignalServiceAttachment;
  97 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentPointer;
  98 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentRemoteId;
  99 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentStream;
 100 import org.whispersystems.signalservice.api.messages.SignalServiceContent;
 101 import org.whispersystems.signalservice.api.messages.SignalServiceDataMessage;
 102 import org.whispersystems.signalservice.api.messages.SignalServiceEnvelope;
 103 import org.whispersystems.signalservice.api.messages.SignalServiceGroup;
 104 import org.whispersystems.signalservice.api.messages.SignalServiceGroupV2;
 105 import org.whispersystems.signalservice.api.messages.SignalServiceReceiptMessage;
 106 import org.whispersystems.signalservice.api.messages.multidevice.BlockedListMessage;
 107 import org.whispersystems.signalservice.api.messages.multidevice.ContactsMessage;
 108 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContact;
 109 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsInputStream;
 110 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsOutputStream;
 111 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroup;
 112 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsInputStream;
 113 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsOutputStream;
 114 import org.whispersystems.signalservice.api.messages.multidevice.RequestMessage;
 115 import org.whispersystems.signalservice.api.messages.multidevice.SentTranscriptMessage;
 116 import org.whispersystems.signalservice.api.messages.multidevice.SignalServiceSyncMessage;
 117 import org.whispersystems.signalservice.api.messages.multidevice.StickerPackOperationMessage;
 118 import org.whispersystems.signalservice.api.messages.multidevice.VerifiedMessage;
 119 import org.whispersystems.signalservice.api.profiles.ProfileAndCredential;
 120 import org.whispersystems.signalservice.api.profiles.SignalServiceProfile;
 121 import org.whispersystems.signalservice.api.push.SignalServiceAddress;
 122 import org.whispersystems.signalservice.api.push.exceptions.MissingConfigurationException;
 123 import org.whispersystems.signalservice.api.push.exceptions.UnregisteredUserException;
 124 import org.whispersystems.signalservice.api.util.DeviceNameUtil;
 125 import org.whispersystems.signalservice.api.util.InvalidNumberException;
 126 import org.whispersystems.signalservice.api.util.PhoneNumberFormatter;
 127 import org.whispersystems.signalservice.api.util.SleepTimer;
 128 import org.whispersystems.signalservice.api.util.UptimeSleepTimer;
 129 import org.whispersystems.signalservice.api.util.UuidUtil;
 130 import org.whispersystems.signalservice.internal.contacts.crypto.Quote;
 131 import org.whispersystems.signalservice.internal.contacts.crypto.UnauthenticatedQuoteException;
 132 import org.whispersystems.signalservice.internal.contacts.crypto.UnauthenticatedResponseException;
 133 import org.whispersystems.signalservice.internal.push.SignalServiceProtos;
 134 import org.whispersystems.signalservice.internal.push.UnsupportedDataMessageException;
 135 import org.whispersystems.signalservice.internal.util.DynamicCredentialsProvider;
 136 import org.whispersystems.signalservice.internal.util.Hex;
 137 import org.whispersystems.signalservice.internal.util.Util;
 138
 139 import java.io.Closeable;
 140 import java.io.File;
 141 import java.io.FileInputStream;
 142 import java.io.FileOutputStream;
 143 import java.io.IOException;
 144 import java.io.InputStream;
 145 import java.io.OutputStream;
 146 import java.net.URI;
 147 import java.net.URISyntaxException;
 148 import java.net.URLEncoder;
 149 import java.nio.charset.StandardCharsets;
 150 import java.nio.file.Files;
 151 import java.security.SignatureException;
 152 import java.util.ArrayList;
 153 import java.util.Arrays;
 154 import java.util.Base64;
 155 import java.util.Collection;
 156 import java.util.Date;
 157 import java.util.HashSet;
 158 import java.util.List;
 159 import java.util.Map;
 160 import java.util.Set;
 161 import java.util.UUID;
 162 import java.util.concurrent.ExecutorService;
 163 import java.util.concurrent.Executors;
 164 import java.util.concurrent.TimeUnit;
 165 import java.util.concurrent.TimeoutException;
 166 import java.util.concurrent.locks.ReentrantLock;
 167 import java.util.function.Function;
 168 import java.util.stream.Collectors;
 169
 170 import static org.asamk.signal.manager.config.ServiceConfig.capabilities;
 171
 172 public class Manager implements Closeable {
 173
 174     private final static Logger logger = LoggerFactory.getLogger(Manager.class);
 175
 176     private final CertificateValidator certificateValidator;
 177
 178     private final ServiceEnvironmentConfig serviceEnvironmentConfig;
 179     private final String userAgent;
 180
 181     private SignalAccount account;
 182     private final SignalServiceAccountManager accountManager;
 183     private final GroupsV2Api groupsV2Api;
 184     private final GroupsV2Operations groupsV2Operations;
 185     private final SignalServiceMessageReceiver messageReceiver;
 186     private final ClientZkProfileOperations clientZkProfileOperations;
 187
 188     private final ExecutorService executor = Executors.newCachedThreadPool();
 189
 190     private SignalServiceMessagePipe messagePipe = null;
 191     private SignalServiceMessagePipe unidentifiedMessagePipe = null;
 192
 193     private final UnidentifiedAccessHelper unidentifiedAccessHelper;
 194     private final ProfileHelper profileHelper;
 195     private final GroupV2Helper groupV2Helper;
 196     private final PinHelper pinHelper;
 197     private final AvatarStore avatarStore;
 198     private final AttachmentStore attachmentStore;
 199     private final SignalSessionLock sessionLock = new SignalSessionLock() {
 200         private final ReentrantLock LEGACY_LOCK = new ReentrantLock();
 201
 202         @Override
 203         public Lock acquire() {
 204             LEGACY_LOCK.lock();
 205             return LEGACY_LOCK::unlock;
 206         }
 207     };
 208
 209     Manager(
 210             SignalAccount account,
 211             PathConfig pathConfig,
 212             ServiceEnvironmentConfig serviceEnvironmentConfig,
 213             String userAgent
 214     ) {
 215         this.account = account;
 216         this.serviceEnvironmentConfig = serviceEnvironmentConfig;
 217         this.certificateValidator = new CertificateValidator(serviceEnvironmentConfig.getUnidentifiedSenderTrustRoot());
 218         this.userAgent = userAgent;
 219         this.groupsV2Operations = capabilities.isGv2() ? new GroupsV2Operations(ClientZkOperations.create(
 220                 serviceEnvironmentConfig.getSignalServiceConfiguration())) : null;
 221         final SleepTimer timer = new UptimeSleepTimer();
 222         this.accountManager = new SignalServiceAccountManager(serviceEnvironmentConfig.getSignalServiceConfiguration(),
 223                 new DynamicCredentialsProvider(account.getUuid(),
 224                         account.getUsername(),
 225                         account.getPassword(),
 226                         account.getDeviceId()),
 227                 userAgent,
 228                 groupsV2Operations,
 229                 ServiceConfig.AUTOMATIC_NETWORK_RETRY,
 230                 timer);
 231         this.groupsV2Api = accountManager.getGroupsV2Api();
 232         final var keyBackupService = accountManager.getKeyBackupService(ServiceConfig.getIasKeyStore(),
 233                 serviceEnvironmentConfig.getKeyBackupConfig().getEnclaveName(),
 234                 serviceEnvironmentConfig.getKeyBackupConfig().getServiceId(),
 235                 serviceEnvironmentConfig.getKeyBackupConfig().getMrenclave(),
 236                 10);
 237
 238         this.pinHelper = new PinHelper(keyBackupService);
 239         this.clientZkProfileOperations = capabilities.isGv2()
 240                 ? ClientZkOperations.create(serviceEnvironmentConfig.getSignalServiceConfiguration())
 241                 .getProfileOperations()
 242                 : null;
 243         this.messageReceiver = new SignalServiceMessageReceiver(serviceEnvironmentConfig.getSignalServiceConfiguration(),
 244                 account.getUuid(),
 245                 account.getUsername(),
 246                 account.getPassword(),
 247                 account.getDeviceId(),
 248                 userAgent,
 249                 null,
 250                 timer,
 251                 clientZkProfileOperations,
 252                 ServiceConfig.AUTOMATIC_NETWORK_RETRY);
 253
 254         this.unidentifiedAccessHelper = new UnidentifiedAccessHelper(account::getProfileKey,
 255                 account.getProfileStore()::getProfileKey,
 256                 this::getRecipientProfile,
 257                 this::getSenderCertificate);
 258         this.profileHelper = new ProfileHelper(account.getProfileStore()::getProfileKey,
 259                 unidentifiedAccessHelper::getAccessFor,
 260                 unidentified -> unidentified ? getOrCreateUnidentifiedMessagePipe() : getOrCreateMessagePipe(),
 261                 () -> messageReceiver,
 262                 this::resolveSignalServiceAddress);
 263         this.groupV2Helper = new GroupV2Helper(this::getRecipientProfileKeyCredential,
 264                 this::getRecipientProfile,
 265                 account::getSelfRecipientId,
 266                 groupsV2Operations,
 267                 groupsV2Api,
 268                 this::getGroupAuthForToday,
 269                 this::resolveSignalServiceAddress);
 270         this.avatarStore = new AvatarStore(pathConfig.getAvatarsPath());
 271         this.attachmentStore = new AttachmentStore(pathConfig.getAttachmentsPath());
 272     }
 273
 274     public String getUsername() {
 275         return account.getUsername();
 276     }
 277
 278     public SignalServiceAddress getSelfAddress() {
 279         return account.getSelfAddress();
 280     }
 281
 282     public RecipientId getSelfRecipientId() {
 283         return account.getSelfRecipientId();
 284     }
 285
 286     private IdentityKeyPair getIdentityKeyPair() {
 287         return account.getIdentityKeyPair();
 288     }
 289
 290     public int getDeviceId() {
 291         return account.getDeviceId();
 292     }
 293
 294     public static Manager init(
 295             String username, File settingsPath, ServiceEnvironment serviceEnvironment, String userAgent
 296     ) throws IOException, NotRegisteredException {
 297         var pathConfig = PathConfig.createDefault(settingsPath);
 298
 299         if (!SignalAccount.userExists(pathConfig.getDataPath(), username)) {
 300             throw new NotRegisteredException();
 301         }
 302
 303         var account = SignalAccount.load(pathConfig.getDataPath(), username, true);
 304
 305         if (!account.isRegistered()) {
 306             throw new NotRegisteredException();
 307         }
 308
 309         final var serviceEnvironmentConfig = ServiceConfig.getServiceEnvironmentConfig(serviceEnvironment, userAgent);
 310
 311         return new Manager(account, pathConfig, serviceEnvironmentConfig, userAgent);
 312     }
 313
 314     public static List<String> getAllLocalUsernames(File settingsPath) {
 315         var pathConfig = PathConfig.createDefault(settingsPath);
 316         final var dataPath = pathConfig.getDataPath();
 317         final var files = dataPath.listFiles();
 318
 319         if (files == null) {
 320             return List.of();
 321         }
 322
 323         return Arrays.stream(files)
 324                 .filter(File::isFile)
 325                 .map(File::getName)
 326                 .filter(file -> PhoneNumberFormatter.isValidNumber(file, null))
 327                 .collect(Collectors.toList());
 328     }
 329
 330     public void checkAccountState() throws IOException {
 331         if (accountManager.getPreKeysCount() < ServiceConfig.PREKEY_MINIMUM_COUNT) {
 332             refreshPreKeys();
 333         }
 334         if (account.getUuid() == null) {
 335             account.setUuid(accountManager.getOwnUuid());
 336         }
 337         updateAccountAttributes();
 338     }
 339
 340     /**
 341      * This is used for checking a set of phone numbers for registration on Signal
 342      *
 343      * @param numbers The set of phone number in question
 344      * @return A map of numbers to booleans. True if registered, false otherwise. Should never be null
 345      * @throws IOException if its unable to get the contacts to check if they're registered
 346      */
 347     public Map<String, Boolean> areUsersRegistered(Set<String> numbers) throws IOException {
 348         // Note "contactDetails" has no optionals. It only gives us info on users who are registered
 349         var contactDetails = getRegisteredUsers(numbers);
 350
 351         var registeredUsers = contactDetails.keySet();
 352
 353         return numbers.stream().collect(Collectors.toMap(x -> x, registeredUsers::contains));
 354     }
 355
 356     public void updateAccountAttributes() throws IOException {
 357         accountManager.setAccountAttributes(account.getEncryptedDeviceName(),
 358                 null,
 359                 account.getLocalRegistrationId(),
 360                 true,
 361                 // set legacy pin only if no KBS master key is set
 362                 account.getPinMasterKey() == null ? account.getRegistrationLockPin() : null,
 363                 account.getPinMasterKey() == null ? null : account.getPinMasterKey().deriveRegistrationLock(),
 364                 account.getSelfUnidentifiedAccessKey(),
 365                 account.isUnrestrictedUnidentifiedAccess(),
 366                 capabilities,
 367                 account.isDiscoverableByPhoneNumber());
 368     }
 369
 370     /**
 371      * @param givenName  if null, the previous givenName will be kept
 372      * @param familyName if null, the previous familyName will be kept
 373      * @param about      if null, the previous about text will be kept
 374      * @param aboutEmoji if null, the previous about emoji will be kept
 375      * @param avatar     if avatar is null the image from the local avatar store is used (if present),
 376      */
 377     public void setProfile(
 378             String givenName, final String familyName, String about, String aboutEmoji, Optional<File> avatar
 379     ) throws IOException {
 380         var profile = getRecipientProfile(account.getSelfRecipientId());
 381         var builder = profile == null ? Profile.newBuilder() : Profile.newBuilder(profile);
 382         if (givenName != null) {
 383             builder.withGivenName(givenName);
 384         }
 385         if (familyName != null) {
 386             builder.withFamilyName(familyName);
 387         }
 388         if (about != null) {
 389             builder.withAbout(about);
 390         }
 391         if (aboutEmoji != null) {
 392             builder.withAboutEmoji(aboutEmoji);
 393         }
 394         var newProfile = builder.build();
 395
 396         try (final var streamDetails = avatar == null
 397                 ? avatarStore.retrieveProfileAvatar(getSelfAddress())
 398                 : avatar.isPresent() ? Utils.createStreamDetailsFromFile(avatar.get()) : null) {
 399             accountManager.setVersionedProfile(account.getUuid(),
 400                     account.getProfileKey(),
 401                     newProfile.getInternalServiceName(),
 402                     newProfile.getAbout() == null ? "" : newProfile.getAbout(),
 403                     newProfile.getAboutEmoji() == null ? "" : newProfile.getAboutEmoji(),
 404                     Optional.absent(),
 405                     streamDetails);
 406         }
 407
 408         if (avatar != null) {
 409             if (avatar.isPresent()) {
 410                 avatarStore.storeProfileAvatar(getSelfAddress(),
 411                         outputStream -> IOUtils.copyFileToStream(avatar.get(), outputStream));
 412             } else {
 413                 avatarStore.deleteProfileAvatar(getSelfAddress());
 414             }
 415         }
 416         account.getProfileStore().storeProfile(account.getSelfRecipientId(), newProfile);
 417
 418         try {
 419             sendSyncMessage(SignalServiceSyncMessage.forFetchLatest(SignalServiceSyncMessage.FetchType.LOCAL_PROFILE));
 420         } catch (UntrustedIdentityException ignored) {
 421         }
 422     }
 423
 424     public void unregister() throws IOException {
 425         // When setting an empty GCM id, the Signal-Server also sets the fetchesMessages property to false.
 426         // If this is the master device, other users can't send messages to this number anymore.
 427         // If this is a linked device, other users can still send messages, but this device doesn't receive them anymore.
 428         accountManager.setGcmId(Optional.absent());
 429
 430         account.setRegistered(false);
 431     }
 432
 433     public void deleteAccount() throws IOException {
 434         accountManager.deleteAccount();
 435
 436         account.setRegistered(false);
 437     }
 438
 439     public List<Device> getLinkedDevices() throws IOException {
 440         var devices = accountManager.getDevices();
 441         account.setMultiDevice(devices.size() > 1);
 442         var identityKey = account.getIdentityKeyPair().getPrivateKey();
 443         return devices.stream().map(d -> {
 444             String deviceName = d.getName();
 445             if (deviceName != null) {
 446                 try {
 447                     deviceName = DeviceNameUtil.decryptDeviceName(deviceName, identityKey);
 448                 } catch (IOException e) {
 449                     logger.debug("Failed to decrypt device name, maybe plain text?", e);
 450                 }
 451             }
 452             return new Device(d.getId(), deviceName, d.getCreated(), d.getLastSeen());
 453         }).collect(Collectors.toList());
 454     }
 455
 456     public void removeLinkedDevices(int deviceId) throws IOException {
 457         accountManager.removeDevice(deviceId);
 458         var devices = accountManager.getDevices();
 459         account.setMultiDevice(devices.size() > 1);
 460     }
 461
 462     public void addDeviceLink(URI linkUri) throws IOException, InvalidKeyException {
 463         var info = DeviceLinkInfo.parseDeviceLinkUri(linkUri);
 464
 465         addDevice(info.deviceIdentifier, info.deviceKey);
 466     }
 467
 468     private void addDevice(String deviceIdentifier, ECPublicKey deviceKey) throws IOException, InvalidKeyException {
 469         var identityKeyPair = getIdentityKeyPair();
 470         var verificationCode = accountManager.getNewDeviceVerificationCode();
 471
 472         accountManager.addDevice(deviceIdentifier,
 473                 deviceKey,
 474                 identityKeyPair,
 475                 Optional.of(account.getProfileKey().serialize()),
 476                 verificationCode);
 477         account.setMultiDevice(true);
 478     }
 479
 480     public void setRegistrationLockPin(Optional<String> pin) throws IOException, UnauthenticatedResponseException {
 481         if (!account.isMasterDevice()) {
 482             throw new RuntimeException("Only master device can set a PIN");
 483         }
 484         if (pin.isPresent()) {
 485             final var masterKey = account.getPinMasterKey() != null
 486                     ? account.getPinMasterKey()
 487                     : KeyUtils.createMasterKey();
 488
 489             pinHelper.setRegistrationLockPin(pin.get(), masterKey);
 490
 491             account.setRegistrationLockPin(pin.get(), masterKey);
 492         } else {
 493             // Remove legacy registration lock
 494             accountManager.removeRegistrationLockV1();
 495
 496             // Remove KBS Pin
 497             pinHelper.removeRegistrationLockPin();
 498
 499             account.setRegistrationLockPin(null, null);
 500         }
 501     }
 502
 503     void refreshPreKeys() throws IOException {
 504         var oneTimePreKeys = generatePreKeys();
 505         final var identityKeyPair = getIdentityKeyPair();
 506         var signedPreKeyRecord = generateSignedPreKey(identityKeyPair);
 507
 508         accountManager.setPreKeys(identityKeyPair.getPublicKey(), signedPreKeyRecord, oneTimePreKeys);
 509     }
 510
 511     private List<PreKeyRecord> generatePreKeys() {
 512         final var offset = account.getPreKeyIdOffset();
 513
 514         var records = KeyUtils.generatePreKeyRecords(offset, ServiceConfig.PREKEY_BATCH_SIZE);
 515         account.addPreKeys(records);
 516
 517         return records;
 518     }
 519
 520     private SignedPreKeyRecord generateSignedPreKey(IdentityKeyPair identityKeyPair) {
 521         final var signedPreKeyId = account.getNextSignedPreKeyId();
 522
 523         var record = KeyUtils.generateSignedPreKeyRecord(identityKeyPair, signedPreKeyId);
 524         account.addSignedPreKey(record);
 525
 526         return record;
 527     }
 528
 529     private SignalServiceMessagePipe getOrCreateMessagePipe() {
 530         if (messagePipe == null) {
 531             messagePipe = messageReceiver.createMessagePipe();
 532         }
 533         return messagePipe;
 534     }
 535
 536     private SignalServiceMessagePipe getOrCreateUnidentifiedMessagePipe() {
 537         if (unidentifiedMessagePipe == null) {
 538             unidentifiedMessagePipe = messageReceiver.createUnidentifiedMessagePipe();
 539         }
 540         return unidentifiedMessagePipe;
 541     }
 542
 543     private SignalServiceMessageSender createMessageSender() {
 544         return new SignalServiceMessageSender(serviceEnvironmentConfig.getSignalServiceConfiguration(),
 545                 account.getUuid(),
 546                 account.getUsername(),
 547                 account.getPassword(),
 548                 account.getDeviceId(),
 549                 account.getSignalProtocolStore(),
 550                 sessionLock,
 551                 userAgent,
 552                 account.isMultiDevice(),
 553                 Optional.fromNullable(messagePipe),
 554                 Optional.fromNullable(unidentifiedMessagePipe),
 555                 Optional.absent(),
 556                 clientZkProfileOperations,
 557                 executor,
 558                 ServiceConfig.MAX_ENVELOPE_SIZE,
 559                 ServiceConfig.AUTOMATIC_NETWORK_RETRY);
 560     }
 561
 562     public Profile getRecipientProfile(
 563             RecipientId recipientId
 564     ) {
 565         return getRecipientProfile(recipientId, false);
 566     }
 567
 568     private final Set<RecipientId> pendingProfileRequest = new HashSet<>();
 569
 570     Profile getRecipientProfile(
 571             RecipientId recipientId, boolean force
 572     ) {
 573         var profile = account.getProfileStore().getProfile(recipientId);
 574
 575         var now = new Date().getTime();
 576         // Profiles are cached for 24h before retrieving them again, unless forced
 577         if (!force && profile != null && now - profile.getLastUpdateTimestamp() < 24 * 60 * 60 * 1000) {
 578             return profile;
 579         }
 580
 581         synchronized (pendingProfileRequest) {
 582             if (pendingProfileRequest.contains(recipientId)) {
 583                 return profile;
 584             }
 585             pendingProfileRequest.add(recipientId);
 586         }
 587         final SignalServiceProfile encryptedProfile;
 588         try {
 589             encryptedProfile = retrieveEncryptedProfile(recipientId);
 590         } finally {
 591             synchronized (pendingProfileRequest) {
 592                 pendingProfileRequest.remove(recipientId);
 593             }
 594         }
 595         if (encryptedProfile == null) {
 596             return null;
 597         }
 598
 599         var profileKey = account.getProfileStore().getProfileKey(recipientId);
 600         if (profileKey == null) {
 601             profile = new Profile(new Date().getTime(),
 602                     null,
 603                     null,
 604                     null,
 605                     null,
 606                     ProfileUtils.getUnidentifiedAccessMode(encryptedProfile, null),
 607                     ProfileUtils.getCapabilities(encryptedProfile));
 608         } else {
 609             profile = decryptProfileAndDownloadAvatar(recipientId, profileKey, encryptedProfile);
 610         }
 611         account.getProfileStore().storeProfile(recipientId, profile);
 612
 613         return profile;
 614     }
 615
 616     private SignalServiceProfile retrieveEncryptedProfile(RecipientId recipientId) {
 617         try {
 618             return retrieveProfileAndCredential(recipientId, SignalServiceProfile.RequestType.PROFILE).getProfile();
 619         } catch (IOException e) {
 620             logger.warn("Failed to retrieve profile, ignoring: {}", e.getMessage());
 621             return null;
 622         }
 623     }
 624
 625     private ProfileAndCredential retrieveProfileAndCredential(
 626             final RecipientId recipientId, final SignalServiceProfile.RequestType requestType
 627     ) throws IOException {
 628         final var profileAndCredential = profileHelper.retrieveProfileSync(recipientId, requestType);
 629         final var profile = profileAndCredential.getProfile();
 630
 631         try {
 632             var newIdentity = account.getIdentityKeyStore()
 633                     .saveIdentity(recipientId,
 634                             new IdentityKey(Base64.getDecoder().decode(profile.getIdentityKey())),
 635                             new Date());
 636
 637             if (newIdentity) {
 638                 account.getSessionStore().archiveSessions(recipientId);
 639             }
 640         } catch (InvalidKeyException ignored) {
 641             logger.warn("Got invalid identity key in profile for {}",
 642                     resolveSignalServiceAddress(recipientId).getLegacyIdentifier());
 643         }
 644         return profileAndCredential;
 645     }
 646
 647     private ProfileKeyCredential getRecipientProfileKeyCredential(RecipientId recipientId) {
 648         var profileKeyCredential = account.getProfileStore().getProfileKeyCredential(recipientId);
 649         if (profileKeyCredential != null) {
 650             return profileKeyCredential;
 651         }
 652
 653         ProfileAndCredential profileAndCredential;
 654         try {
 655             profileAndCredential = retrieveProfileAndCredential(recipientId,
 656                     SignalServiceProfile.RequestType.PROFILE_AND_CREDENTIAL);
 657         } catch (IOException e) {
 658             logger.warn("Failed to retrieve profile key credential, ignoring: {}", e.getMessage());
 659             return null;
 660         }
 661
 662         profileKeyCredential = profileAndCredential.getProfileKeyCredential().orNull();
 663         account.getProfileStore().storeProfileKeyCredential(recipientId, profileKeyCredential);
 664
 665         var profileKey = account.getProfileStore().getProfileKey(recipientId);
 666         if (profileKey != null) {
 667             final var profile = decryptProfileAndDownloadAvatar(recipientId,
 668                     profileKey,
 669                     profileAndCredential.getProfile());
 670             account.getProfileStore().storeProfile(recipientId, profile);
 671         }
 672
 673         return profileKeyCredential;
 674     }
 675
 676     private Profile decryptProfileAndDownloadAvatar(
 677             final RecipientId recipientId, final ProfileKey profileKey, final SignalServiceProfile encryptedProfile
 678     ) {
 679         if (encryptedProfile.getAvatar() != null) {
 680             downloadProfileAvatar(resolveSignalServiceAddress(recipientId), encryptedProfile.getAvatar(), profileKey);
 681         }
 682
 683         return ProfileUtils.decryptProfile(profileKey, encryptedProfile);
 684     }
 685
 686     private Optional<SignalServiceAttachmentStream> createGroupAvatarAttachment(GroupId groupId) throws IOException {
 687         final var streamDetails = avatarStore.retrieveGroupAvatar(groupId);
 688         if (streamDetails == null) {
 689             return Optional.absent();
 690         }
 691
 692         return Optional.of(AttachmentUtils.createAttachment(streamDetails, Optional.absent()));
 693     }
 694
 695     private Optional<SignalServiceAttachmentStream> createContactAvatarAttachment(SignalServiceAddress address) throws IOException {
 696         final var streamDetails = avatarStore.retrieveContactAvatar(address);
 697         if (streamDetails == null) {
 698             return Optional.absent();
 699         }
 700
 701         return Optional.of(AttachmentUtils.createAttachment(streamDetails, Optional.absent()));
 702     }
 703
 704     private GroupInfo getGroupForSending(GroupId groupId) throws GroupNotFoundException, NotAGroupMemberException {
 705         var g = getGroup(groupId);
 706         if (g == null) {
 707             throw new GroupNotFoundException(groupId);
 708         }
 709         if (!g.isMember(account.getSelfRecipientId())) {
 710             throw new NotAGroupMemberException(groupId, g.getTitle());
 711         }
 712         return g;
 713     }
 714
 715     private GroupInfo getGroupForUpdating(GroupId groupId) throws GroupNotFoundException, NotAGroupMemberException {
 716         var g = getGroup(groupId);
 717         if (g == null) {
 718             throw new GroupNotFoundException(groupId);
 719         }
 720         if (!g.isMember(account.getSelfRecipientId()) && !g.isPendingMember(account.getSelfRecipientId())) {
 721             throw new NotAGroupMemberException(groupId, g.getTitle());
 722         }
 723         return g;
 724     }
 725
 726     public List<GroupInfo> getGroups() {
 727         return account.getGroupStore().getGroups();
 728     }
 729
 730     public Pair<Long, List<SendMessageResult>> sendGroupMessage(
 731             String messageText, List<String> attachments, GroupId groupId
 732     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 733         final var messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
 734         if (attachments != null) {
 735             messageBuilder.withAttachments(AttachmentUtils.getSignalServiceAttachments(attachments));
 736         }
 737
 738         return sendGroupMessage(messageBuilder, groupId);
 739     }
 740
 741     public Pair<Long, List<SendMessageResult>> sendGroupMessageReaction(
 742             String emoji, boolean remove, String targetAuthor, long targetSentTimestamp, GroupId groupId
 743     ) throws IOException, InvalidNumberException, NotAGroupMemberException, GroupNotFoundException {
 744         var targetAuthorRecipientId = canonicalizeAndResolveRecipient(targetAuthor);
 745         var reaction = new SignalServiceDataMessage.Reaction(emoji,
 746                 remove,
 747                 resolveSignalServiceAddress(targetAuthorRecipientId),
 748                 targetSentTimestamp);
 749         final var messageBuilder = SignalServiceDataMessage.newBuilder().withReaction(reaction);
 750
 751         return sendGroupMessage(messageBuilder, groupId);
 752     }
 753
 754     public Pair<Long, List<SendMessageResult>> sendGroupMessage(
 755             SignalServiceDataMessage.Builder messageBuilder, GroupId groupId
 756     ) throws IOException, GroupNotFoundException, NotAGroupMemberException {
 757         final var g = getGroupForSending(groupId);
 758
 759         GroupUtils.setGroupContext(messageBuilder, g);
 760         messageBuilder.withExpiration(g.getMessageExpirationTime());
 761
 762         return sendMessage(messageBuilder, g.getMembersWithout(account.getSelfRecipientId()));
 763     }
 764
 765     public Pair<Long, List<SendMessageResult>> sendQuitGroupMessage(GroupId groupId) throws GroupNotFoundException, IOException, NotAGroupMemberException {
 766         SignalServiceDataMessage.Builder messageBuilder;
 767
 768         final var g = getGroupForUpdating(groupId);
 769         if (g instanceof GroupInfoV1) {
 770             var groupInfoV1 = (GroupInfoV1) g;
 771             var group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.QUIT).withId(groupId.serialize()).build();
 772             messageBuilder = SignalServiceDataMessage.newBuilder().asGroupMessage(group);
 773             groupInfoV1.removeMember(account.getSelfRecipientId());
 774             account.getGroupStore().updateGroup(groupInfoV1);
 775         } else {
 776             final var groupInfoV2 = (GroupInfoV2) g;
 777             final var groupGroupChangePair = groupV2Helper.leaveGroup(groupInfoV2);
 778             groupInfoV2.setGroup(groupGroupChangePair.first(), this::resolveRecipient);
 779             messageBuilder = getGroupUpdateMessageBuilder(groupInfoV2, groupGroupChangePair.second().toByteArray());
 780             account.getGroupStore().updateGroup(groupInfoV2);
 781         }
 782
 783         return sendMessage(messageBuilder, g.getMembersWithout(account.getSelfRecipientId()));
 784     }
 785
 786     public Pair<GroupId, List<SendMessageResult>> createGroup(
 787             String name, List<String> members, File avatarFile
 788     ) throws IOException, AttachmentInvalidException, InvalidNumberException {
 789         return createGroup(name, members == null ? null : getSignalServiceAddresses(members), avatarFile);
 790     }
 791
 792     private Pair<GroupId, List<SendMessageResult>> createGroup(
 793             String name, Set<RecipientId> members, File avatarFile
 794     ) throws IOException, AttachmentInvalidException {
 795         final var selfRecipientId = account.getSelfRecipientId();
 796         if (members != null && members.contains(selfRecipientId)) {
 797             members = new HashSet<>(members);
 798             members.remove(selfRecipientId);
 799         }
 800
 801         var gv2Pair = groupV2Helper.createGroup(name == null ? "" : name,
 802                 members == null ? Set.of() : members,
 803                 avatarFile);
 804
 805         SignalServiceDataMessage.Builder messageBuilder;
 806         if (gv2Pair == null) {
 807             // Failed to create v2 group, creating v1 group instead
 808             var gv1 = new GroupInfoV1(GroupIdV1.createRandom());
 809             gv1.addMembers(List.of(selfRecipientId));
 810             final var result = updateGroupV1(gv1, name, members, avatarFile);
 811             return new Pair<>(gv1.getGroupId(), result.second());
 812         }
 813
 814         final var gv2 = gv2Pair.first();
 815         final var decryptedGroup = gv2Pair.second();
 816
 817         gv2.setGroup(decryptedGroup, this::resolveRecipient);
 818         if (avatarFile != null) {
 819             avatarStore.storeGroupAvatar(gv2.getGroupId(),
 820                     outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
 821         }
 822         messageBuilder = getGroupUpdateMessageBuilder(gv2, null);
 823         account.getGroupStore().updateGroup(gv2);
 824
 825         final var result = sendMessage(messageBuilder, gv2.getMembersIncludingPendingWithout(selfRecipientId));
 826         return new Pair<>(gv2.getGroupId(), result.second());
 827     }
 828
 829     public Pair<Long, List<SendMessageResult>> updateGroup(
 830             GroupId groupId,
 831             String name,
 832             String description,
 833             List<String> members,
 834             List<String> removeMembers,
 835             List<String> admins,
 836             List<String> removeAdmins,
 837             boolean resetGroupLink,
 838             GroupLinkState groupLinkState,
 839             File avatarFile
 840     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, InvalidNumberException, NotAGroupMemberException {
 841         return updateGroup(groupId,
 842                 name,
 843                 description,
 844                 members == null ? null : getSignalServiceAddresses(members),
 845                 removeMembers == null ? null : getSignalServiceAddresses(removeMembers),
 846                 admins == null ? null : getSignalServiceAddresses(admins),
 847                 removeAdmins == null ? null : getSignalServiceAddresses(removeAdmins),
 848                 resetGroupLink,
 849                 groupLinkState,
 850                 avatarFile);
 851     }
 852
 853     private Pair<Long, List<SendMessageResult>> updateGroup(
 854             final GroupId groupId,
 855             final String name,
 856             final String description,
 857             final Set<RecipientId> members,
 858             final Set<RecipientId> removeMembers,
 859             final Set<RecipientId> admins,
 860             final Set<RecipientId> removeAdmins,
 861             final boolean resetGroupLink,
 862             final GroupLinkState groupLinkState,
 863             final File avatarFile
 864     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 865         var group = getGroupForUpdating(groupId);
 866
 867         if (group instanceof GroupInfoV2) {
 868             return updateGroupV2((GroupInfoV2) group,
 869                     name,
 870                     description,
 871                     members,
 872                     removeMembers,
 873                     admins,
 874                     removeAdmins,
 875                     resetGroupLink,
 876                     groupLinkState,
 877                     avatarFile);
 878         }
 879
 880         return updateGroupV1((GroupInfoV1) group, name, members, avatarFile);
 881     }
 882
 883     private Pair<Long, List<SendMessageResult>> updateGroupV1(
 884             final GroupInfoV1 gv1, final String name, final Set<RecipientId> members, final File avatarFile
 885     ) throws IOException, AttachmentInvalidException {
 886         updateGroupV1Details(gv1, name, members, avatarFile);
 887         var messageBuilder = getGroupUpdateMessageBuilder(gv1);
 888
 889         account.getGroupStore().updateGroup(gv1);
 890
 891         return sendMessage(messageBuilder, gv1.getMembersIncludingPendingWithout(account.getSelfRecipientId()));
 892     }
 893
 894     private void updateGroupV1Details(
 895             final GroupInfoV1 g, final String name, final Collection<RecipientId> members, final File avatarFile
 896     ) throws IOException {
 897         if (name != null) {
 898             g.name = name;
 899         }
 900
 901         if (members != null) {
 902             final var newMemberAddresses = members.stream()
 903                     .filter(member -> !g.isMember(member))
 904                     .map(this::resolveSignalServiceAddress)
 905                     .collect(Collectors.toList());
 906             final var newE164Members = new HashSet<String>();
 907             for (var member : newMemberAddresses) {
 908                 if (!member.getNumber().isPresent()) {
 909                     continue;
 910                 }
 911                 newE164Members.add(member.getNumber().get());
 912             }
 913
 914             final var registeredUsers = getRegisteredUsers(newE164Members);
 915             if (registeredUsers.size() != newE164Members.size()) {
 916                 // Some of the new members are not registered on Signal
 917                 newE164Members.removeAll(registeredUsers.keySet());
 918                 throw new IOException("Failed to add members "
 919                         + String.join(", ", newE164Members)
 920                         + " to group: Not registered on Signal");
 921             }
 922
 923             g.addMembers(members);
 924         }
 925
 926         if (avatarFile != null) {
 927             avatarStore.storeGroupAvatar(g.getGroupId(),
 928                     outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
 929         }
 930     }
 931
 932     private Pair<Long, List<SendMessageResult>> updateGroupV2(
 933             final GroupInfoV2 group,
 934             final String name,
 935             final String description,
 936             final Set<RecipientId> members,
 937             final Set<RecipientId> removeMembers,
 938             final Set<RecipientId> admins,
 939             final Set<RecipientId> removeAdmins,
 940             final boolean resetGroupLink,
 941             final GroupLinkState groupLinkState,
 942             final File avatarFile
 943     ) throws IOException {
 944         Pair<Long, List<SendMessageResult>> result = null;
 945         if (group.isPendingMember(account.getSelfRecipientId())) {
 946             var groupGroupChangePair = groupV2Helper.acceptInvite(group);
 947             result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
 948         }
 949
 950         if (members != null) {
 951             final var newMembers = new HashSet<>(members);
 952             newMembers.removeAll(group.getMembers());
 953             if (newMembers.size() > 0) {
 954                 var groupGroupChangePair = groupV2Helper.addMembers(group, newMembers);
 955                 result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
 956             }
 957         }
 958
 959         if (removeMembers != null) {
 960             var existingRemoveMembers = new HashSet<>(removeMembers);
 961             existingRemoveMembers.retainAll(group.getMembers());
 962             existingRemoveMembers.remove(getSelfRecipientId());// self can be removed with sendQuitGroupMessage
 963             if (existingRemoveMembers.size() > 0) {
 964                 var groupGroupChangePair = groupV2Helper.removeMembers(group, existingRemoveMembers);
 965                 result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
 966             }
 967
 968             var pendingRemoveMembers = new HashSet<>(removeMembers);
 969             pendingRemoveMembers.retainAll(group.getPendingMembers());
 970             if (pendingRemoveMembers.size() > 0) {
 971                 var groupGroupChangePair = groupV2Helper.revokeInvitedMembers(group, pendingRemoveMembers);
 972                 result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
 973             }
 974         }
 975
 976         if (admins != null) {
 977             final var newAdmins = new HashSet<>(admins);
 978             newAdmins.retainAll(group.getMembers());
 979             newAdmins.removeAll(group.getAdminMembers());
 980             if (newAdmins.size() > 0) {
 981                 for (var admin : newAdmins) {
 982                     var groupGroupChangePair = groupV2Helper.setMemberAdmin(group, admin, true);
 983                     result = sendUpdateGroupV2Message(group,
 984                             groupGroupChangePair.first(),
 985                             groupGroupChangePair.second());
 986                 }
 987             }
 988         }
 989
 990         if (removeAdmins != null) {
 991             final var existingRemoveAdmins = new HashSet<>(removeAdmins);
 992             existingRemoveAdmins.retainAll(group.getAdminMembers());
 993             if (existingRemoveAdmins.size() > 0) {
 994                 for (var admin : existingRemoveAdmins) {
 995                     var groupGroupChangePair = groupV2Helper.setMemberAdmin(group, admin, false);
 996                     result = sendUpdateGroupV2Message(group,
 997                             groupGroupChangePair.first(),
 998                             groupGroupChangePair.second());
 999                 }
1000             }
1001         }
1002
1003         if (resetGroupLink) {
1004             var groupGroupChangePair = groupV2Helper.resetGroupLinkPassword(group);
1005             result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1006         }
1007
1008         if (groupLinkState != null) {
1009             var groupGroupChangePair = groupV2Helper.setGroupLinkState(group, groupLinkState);
1010             result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1011         }
1012
1013         if (result == null || name != null || description != null || avatarFile != null) {
1014             var groupGroupChangePair = groupV2Helper.updateGroup(group, name, description, avatarFile);
1015             if (avatarFile != null) {
1016                 avatarStore.storeGroupAvatar(group.getGroupId(),
1017                         outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
1018             }
1019             result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1020         }
1021
1022         return result;
1023     }
1024
1025     public Pair<GroupId, List<SendMessageResult>> joinGroup(
1026             GroupInviteLinkUrl inviteLinkUrl
1027     ) throws IOException, GroupLinkNotActiveException {
1028         final var groupJoinInfo = groupV2Helper.getDecryptedGroupJoinInfo(inviteLinkUrl.getGroupMasterKey(),
1029                 inviteLinkUrl.getPassword());
1030         final var groupChange = groupV2Helper.joinGroup(inviteLinkUrl.getGroupMasterKey(),
1031                 inviteLinkUrl.getPassword(),
1032                 groupJoinInfo);
1033         final var group = getOrMigrateGroup(inviteLinkUrl.getGroupMasterKey(),
1034                 groupJoinInfo.getRevision() + 1,
1035                 groupChange.toByteArray());
1036
1037         if (group.getGroup() == null) {
1038             // Only requested member, can't send update to group members
1039             return new Pair<>(group.getGroupId(), List.of());
1040         }
1041
1042         final var result = sendUpdateGroupV2Message(group, group.getGroup(), groupChange);
1043
1044         return new Pair<>(group.getGroupId(), result.second());
1045     }
1046
1047     private Pair<Long, List<SendMessageResult>> sendUpdateGroupV2Message(
1048             GroupInfoV2 group, DecryptedGroup newDecryptedGroup, GroupChange groupChange
1049     ) throws IOException {
1050         final var selfRecipientId = account.getSelfRecipientId();
1051         final var members = group.getMembersIncludingPendingWithout(selfRecipientId);
1052         group.setGroup(newDecryptedGroup, this::resolveRecipient);
1053         members.addAll(group.getMembersIncludingPendingWithout(selfRecipientId));
1054
1055         final var messageBuilder = getGroupUpdateMessageBuilder(group, groupChange.toByteArray());
1056         account.getGroupStore().updateGroup(group);
1057         return sendMessage(messageBuilder, members);
1058     }
1059
1060     private static int currentTimeDays() {
1061         return (int) TimeUnit.MILLISECONDS.toDays(System.currentTimeMillis());
1062     }
1063
1064     private GroupsV2AuthorizationString getGroupAuthForToday(
1065             final GroupSecretParams groupSecretParams
1066     ) throws IOException {
1067         final var today = currentTimeDays();
1068         // Returns credentials for the next 7 days
1069         final var credentials = groupsV2Api.getCredentials(today);
1070         // TODO cache credentials until they expire
1071         var authCredentialResponse = credentials.get(today);
1072         try {
1073             return groupsV2Api.getGroupsV2AuthorizationString(account.getUuid(),
1074                     today,
1075                     groupSecretParams,
1076                     authCredentialResponse);
1077         } catch (VerificationFailedException e) {
1078             throw new IOException(e);
1079         }
1080     }
1081
1082     Pair<Long, List<SendMessageResult>> sendGroupInfoMessage(
1083             GroupIdV1 groupId, SignalServiceAddress recipient
1084     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, AttachmentInvalidException {
1085         GroupInfoV1 g;
1086         var group = getGroupForSending(groupId);
1087         if (!(group instanceof GroupInfoV1)) {
1088             throw new RuntimeException("Received an invalid group request for a v2 group!");
1089         }
1090         g = (GroupInfoV1) group;
1091
1092         final var recipientId = resolveRecipient(recipient);
1093         if (!g.isMember(recipientId)) {
1094             throw new NotAGroupMemberException(groupId, g.name);
1095         }
1096
1097         var messageBuilder = getGroupUpdateMessageBuilder(g);
1098
1099         // Send group message only to the recipient who requested it
1100         return sendMessage(messageBuilder, Set.of(recipientId));
1101     }
1102
1103     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfoV1 g) throws AttachmentInvalidException {
1104         var group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.UPDATE)
1105                 .withId(g.getGroupId().serialize())
1106                 .withName(g.name)
1107                 .withMembers(g.getMembers()
1108                         .stream()
1109                         .map(this::resolveSignalServiceAddress)
1110                         .collect(Collectors.toList()));
1111
1112         try {
1113             final var attachment = createGroupAvatarAttachment(g.getGroupId());
1114             if (attachment.isPresent()) {
1115                 group.withAvatar(attachment.get());
1116             }
1117         } catch (IOException e) {
1118             throw new AttachmentInvalidException(g.getGroupId().toBase64(), e);
1119         }
1120
1121         return SignalServiceDataMessage.newBuilder()
1122                 .asGroupMessage(group.build())
1123                 .withExpiration(g.getMessageExpirationTime());
1124     }
1125
1126     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfoV2 g, byte[] signedGroupChange) {
1127         var group = SignalServiceGroupV2.newBuilder(g.getMasterKey())
1128                 .withRevision(g.getGroup().getRevision())
1129                 .withSignedGroupChange(signedGroupChange);
1130         return SignalServiceDataMessage.newBuilder()
1131                 .asGroupMessage(group.build())
1132                 .withExpiration(g.getMessageExpirationTime());
1133     }
1134
1135     Pair<Long, List<SendMessageResult>> sendGroupInfoRequest(
1136             GroupIdV1 groupId, SignalServiceAddress recipient
1137     ) throws IOException {
1138         var group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.REQUEST_INFO).withId(groupId.serialize());
1139
1140         var messageBuilder = SignalServiceDataMessage.newBuilder().asGroupMessage(group.build());
1141
1142         // Send group info request message to the recipient who sent us a message with this groupId
1143         return sendMessage(messageBuilder, Set.of(resolveRecipient(recipient)));
1144     }
1145
1146     void sendReceipt(
1147             SignalServiceAddress remoteAddress, long messageId
1148     ) throws IOException, UntrustedIdentityException {
1149         var receiptMessage = new SignalServiceReceiptMessage(SignalServiceReceiptMessage.Type.DELIVERY,
1150                 List.of(messageId),
1151                 System.currentTimeMillis());
1152
1153         createMessageSender().sendReceipt(remoteAddress,
1154                 unidentifiedAccessHelper.getAccessFor(resolveRecipient(remoteAddress)),
1155                 receiptMessage);
1156     }
1157
1158     public Pair<Long, List<SendMessageResult>> sendMessage(
1159             String messageText, List<String> attachments, List<String> recipients
1160     ) throws IOException, AttachmentInvalidException, InvalidNumberException {
1161         final var messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
1162         if (attachments != null) {
1163             var attachmentStreams = AttachmentUtils.getSignalServiceAttachments(attachments);
1164
1165             // Upload attachments here, so we only upload once even for multiple recipients
1166             var messageSender = createMessageSender();
1167             var attachmentPointers = new ArrayList<SignalServiceAttachment>(attachmentStreams.size());
1168             for (var attachment : attachmentStreams) {
1169                 if (attachment.isStream()) {
1170                     attachmentPointers.add(messageSender.uploadAttachment(attachment.asStream()));
1171                 } else if (attachment.isPointer()) {
1172                     attachmentPointers.add(attachment.asPointer());
1173                 }
1174             }
1175
1176             messageBuilder.withAttachments(attachmentPointers);
1177         }
1178         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
1179     }
1180
1181     public Pair<Long, SendMessageResult> sendSelfMessage(
1182             String messageText, List<String> attachments
1183     ) throws IOException, AttachmentInvalidException {
1184         final var messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
1185         if (attachments != null) {
1186             messageBuilder.withAttachments(AttachmentUtils.getSignalServiceAttachments(attachments));
1187         }
1188         return sendSelfMessage(messageBuilder);
1189     }
1190
1191     public Pair<Long, List<SendMessageResult>> sendRemoteDeleteMessage(
1192             long targetSentTimestamp, List<String> recipients
1193     ) throws IOException, InvalidNumberException {
1194         var delete = new SignalServiceDataMessage.RemoteDelete(targetSentTimestamp);
1195         final var messageBuilder = SignalServiceDataMessage.newBuilder().withRemoteDelete(delete);
1196         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
1197     }
1198
1199     public Pair<Long, List<SendMessageResult>> sendGroupRemoteDeleteMessage(
1200             long targetSentTimestamp, GroupId groupId
1201     ) throws IOException, NotAGroupMemberException, GroupNotFoundException {
1202         var delete = new SignalServiceDataMessage.RemoteDelete(targetSentTimestamp);
1203         final var messageBuilder = SignalServiceDataMessage.newBuilder().withRemoteDelete(delete);
1204         return sendGroupMessage(messageBuilder, groupId);
1205     }
1206
1207     public Pair<Long, List<SendMessageResult>> sendMessageReaction(
1208             String emoji, boolean remove, String targetAuthor, long targetSentTimestamp, List<String> recipients
1209     ) throws IOException, InvalidNumberException {
1210         var targetAuthorRecipientId = canonicalizeAndResolveRecipient(targetAuthor);
1211         var reaction = new SignalServiceDataMessage.Reaction(emoji,
1212                 remove,
1213                 resolveSignalServiceAddress(targetAuthorRecipientId),
1214                 targetSentTimestamp);
1215         final var messageBuilder = SignalServiceDataMessage.newBuilder().withReaction(reaction);
1216         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
1217     }
1218
1219     public Pair<Long, List<SendMessageResult>> sendEndSessionMessage(List<String> recipients) throws IOException, InvalidNumberException {
1220         var messageBuilder = SignalServiceDataMessage.newBuilder().asEndSessionMessage();
1221
1222         final var signalServiceAddresses = getSignalServiceAddresses(recipients);
1223         try {
1224             return sendMessage(messageBuilder, signalServiceAddresses);
1225         } catch (Exception e) {
1226             for (var address : signalServiceAddresses) {
1227                 handleEndSession(address);
1228             }
1229             throw e;
1230         }
1231     }
1232
1233     void renewSession(RecipientId recipientId) throws IOException {
1234         account.getSessionStore().archiveSessions(recipientId);
1235         if (!recipientId.equals(getSelfRecipientId())) {
1236             sendNullMessage(recipientId);
1237         }
1238     }
1239
1240     public String getContactName(String number) throws InvalidNumberException {
1241         var contact = account.getContactStore().getContact(canonicalizeAndResolveRecipient(number));
1242         return contact == null || contact.getName() == null ? "" : contact.getName();
1243     }
1244
1245     public void setContactName(String number, String name) throws InvalidNumberException, NotMasterDeviceException {
1246         if (!account.isMasterDevice()) {
1247             throw new NotMasterDeviceException();
1248         }
1249         final var recipientId = canonicalizeAndResolveRecipient(number);
1250         var contact = account.getContactStore().getContact(recipientId);
1251         final var builder = contact == null ? Contact.newBuilder() : Contact.newBuilder(contact);
1252         account.getContactStore().storeContact(recipientId, builder.withName(name).build());
1253     }
1254
1255     public void setContactBlocked(
1256             String number, boolean blocked
1257     ) throws InvalidNumberException, NotMasterDeviceException {
1258         if (!account.isMasterDevice()) {
1259             throw new NotMasterDeviceException();
1260         }
1261         setContactBlocked(canonicalizeAndResolveRecipient(number), blocked);
1262     }
1263
1264     private void setContactBlocked(RecipientId recipientId, boolean blocked) {
1265         var contact = account.getContactStore().getContact(recipientId);
1266         final var builder = contact == null ? Contact.newBuilder() : Contact.newBuilder(contact);
1267         account.getContactStore().storeContact(recipientId, builder.withBlocked(blocked).build());
1268     }
1269
1270     public void setGroupBlocked(final GroupId groupId, final boolean blocked) throws GroupNotFoundException {
1271         var group = getGroup(groupId);
1272         if (group == null) {
1273             throw new GroupNotFoundException(groupId);
1274         }
1275
1276         group.setBlocked(blocked);
1277         account.getGroupStore().updateGroup(group);
1278     }
1279
1280     private void setExpirationTimer(RecipientId recipientId, int messageExpirationTimer) {
1281         var contact = account.getContactStore().getContact(recipientId);
1282         if (contact != null && contact.getMessageExpirationTime() == messageExpirationTimer) {
1283             return;
1284         }
1285         final var builder = contact == null ? Contact.newBuilder() : Contact.newBuilder(contact);
1286         account.getContactStore()
1287                 .storeContact(recipientId, builder.withMessageExpirationTime(messageExpirationTimer).build());
1288     }
1289
1290     private void sendExpirationTimerUpdate(RecipientId recipientId) throws IOException {
1291         final var messageBuilder = SignalServiceDataMessage.newBuilder().asExpirationUpdate();
1292         sendMessage(messageBuilder, Set.of(recipientId));
1293     }
1294
1295     /**
1296      * Change the expiration timer for a contact
1297      */
1298     public void setExpirationTimer(
1299             String number, int messageExpirationTimer
1300     ) throws IOException, InvalidNumberException {
1301         var recipientId = canonicalizeAndResolveRecipient(number);
1302         setExpirationTimer(recipientId, messageExpirationTimer);
1303         sendExpirationTimerUpdate(recipientId);
1304     }
1305
1306     /**
1307      * Change the expiration timer for a group
1308      */
1309     public void setExpirationTimer(GroupId groupId, int messageExpirationTimer) {
1310         var g = getGroup(groupId);
1311         if (g instanceof GroupInfoV1) {
1312             var groupInfoV1 = (GroupInfoV1) g;
1313             groupInfoV1.messageExpirationTime = messageExpirationTimer;
1314             account.getGroupStore().updateGroup(groupInfoV1);
1315         } else {
1316             throw new RuntimeException("TODO Not implemented!");
1317         }
1318     }
1319
1320     /**
1321      * Upload the sticker pack from path.
1322      *
1323      * @param path Path can be a path to a manifest.json file or to a zip file that contains a manifest.json file
1324      * @return if successful, returns the URL to install the sticker pack in the signal app
1325      */
1326     public String uploadStickerPack(File path) throws IOException, StickerPackInvalidException {
1327         var manifest = StickerUtils.getSignalServiceStickerManifestUpload(path);
1328
1329         var messageSender = createMessageSender();
1330
1331         var packKey = KeyUtils.createStickerUploadKey();
1332         var packId = messageSender.uploadStickerManifest(manifest, packKey);
1333
1334         var sticker = new Sticker(StickerPackId.deserialize(Hex.fromStringCondensed(packId)), packKey);
1335         account.getStickerStore().updateSticker(sticker);
1336
1337         try {
1338             return new URI("https",
1339                     "signal.art",
1340                     "/addstickers/",
1341                     "pack_id=" + URLEncoder.encode(packId, StandardCharsets.UTF_8) + "&pack_key=" + URLEncoder.encode(
1342                             Hex.toStringCondensed(packKey),
1343                             StandardCharsets.UTF_8)).toString();
1344         } catch (URISyntaxException e) {
1345             throw new AssertionError(e);
1346         }
1347     }
1348
1349     public void requestAllSyncData() throws IOException {
1350         requestSyncGroups();
1351         requestSyncContacts();
1352         requestSyncBlocked();
1353         requestSyncConfiguration();
1354         requestSyncKeys();
1355     }
1356
1357     private void requestSyncGroups() throws IOException {
1358         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1359                 .setType(SignalServiceProtos.SyncMessage.Request.Type.GROUPS)
1360                 .build();
1361         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1362         try {
1363             sendSyncMessage(message);
1364         } catch (UntrustedIdentityException e) {
1365             throw new AssertionError(e);
1366         }
1367     }
1368
1369     private void requestSyncContacts() throws IOException {
1370         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1371                 .setType(SignalServiceProtos.SyncMessage.Request.Type.CONTACTS)
1372                 .build();
1373         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1374         try {
1375             sendSyncMessage(message);
1376         } catch (UntrustedIdentityException e) {
1377             throw new AssertionError(e);
1378         }
1379     }
1380
1381     private void requestSyncBlocked() throws IOException {
1382         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1383                 .setType(SignalServiceProtos.SyncMessage.Request.Type.BLOCKED)
1384                 .build();
1385         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1386         try {
1387             sendSyncMessage(message);
1388         } catch (UntrustedIdentityException e) {
1389             throw new AssertionError(e);
1390         }
1391     }
1392
1393     private void requestSyncConfiguration() throws IOException {
1394         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1395                 .setType(SignalServiceProtos.SyncMessage.Request.Type.CONFIGURATION)
1396                 .build();
1397         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1398         try {
1399             sendSyncMessage(message);
1400         } catch (UntrustedIdentityException e) {
1401             throw new AssertionError(e);
1402         }
1403     }
1404
1405     private void requestSyncKeys() throws IOException {
1406         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1407                 .setType(SignalServiceProtos.SyncMessage.Request.Type.KEYS)
1408                 .build();
1409         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1410         try {
1411             sendSyncMessage(message);
1412         } catch (UntrustedIdentityException e) {
1413             throw new AssertionError(e);
1414         }
1415     }
1416
1417     private byte[] getSenderCertificate() {
1418         byte[] certificate;
1419         try {
1420             if (account.isPhoneNumberShared()) {
1421                 certificate = accountManager.getSenderCertificate();
1422             } else {
1423                 certificate = accountManager.getSenderCertificateForPhoneNumberPrivacy();
1424             }
1425         } catch (IOException e) {
1426             logger.warn("Failed to get sender certificate, ignoring: {}", e.getMessage());
1427             return null;
1428         }
1429         // TODO cache for a day
1430         return certificate;
1431     }
1432
1433     private void sendSyncMessage(SignalServiceSyncMessage message) throws IOException, UntrustedIdentityException {
1434         var messageSender = createMessageSender();
1435         messageSender.sendMessage(message, unidentifiedAccessHelper.getAccessForSync());
1436     }
1437
1438     private Set<RecipientId> getSignalServiceAddresses(Collection<String> numbers) throws InvalidNumberException {
1439         final var signalServiceAddresses = new HashSet<SignalServiceAddress>(numbers.size());
1440         final var addressesMissingUuid = new HashSet<SignalServiceAddress>();
1441
1442         for (var number : numbers) {
1443             final var resolvedAddress = resolveSignalServiceAddress(canonicalizeAndResolveRecipient(number));
1444             if (resolvedAddress.getUuid().isPresent()) {
1445                 signalServiceAddresses.add(resolvedAddress);
1446             } else {
1447                 addressesMissingUuid.add(resolvedAddress);
1448             }
1449         }
1450
1451         final var numbersMissingUuid = addressesMissingUuid.stream()
1452                 .map(a -> a.getNumber().get())
1453                 .collect(Collectors.toSet());
1454         Map<String, UUID> registeredUsers;
1455         try {
1456             registeredUsers = getRegisteredUsers(numbersMissingUuid);
1457         } catch (IOException e) {
1458             logger.warn("Failed to resolve uuids from server, ignoring: {}", e.getMessage());
1459             registeredUsers = Map.of();
1460         }
1461
1462         for (var address : addressesMissingUuid) {
1463             final var number = address.getNumber().get();
1464             if (registeredUsers.containsKey(number)) {
1465                 final var newAddress = resolveSignalServiceAddress(resolveRecipientTrusted(new SignalServiceAddress(
1466                         registeredUsers.get(number),
1467                         number)));
1468                 signalServiceAddresses.add(newAddress);
1469             } else {
1470                 signalServiceAddresses.add(address);
1471             }
1472         }
1473
1474         return signalServiceAddresses.stream().map(this::resolveRecipient).collect(Collectors.toSet());
1475     }
1476
1477     private RecipientId refreshRegisteredUser(RecipientId recipientId) throws IOException {
1478         final var address = resolveSignalServiceAddress(recipientId);
1479         if (!address.getNumber().isPresent()) {
1480             return recipientId;
1481         }
1482         final var number = address.getNumber().get();
1483         final var uuidMap = getRegisteredUsers(Set.of(number));
1484         return resolveRecipientTrusted(new SignalServiceAddress(uuidMap.getOrDefault(number, null), number));
1485     }
1486
1487     private Map<String, UUID> getRegisteredUsers(final Set<String> numbers) throws IOException {
1488         try {
1489             return accountManager.getRegisteredUsers(ServiceConfig.getIasKeyStore(),
1490                     numbers,
1491                     serviceEnvironmentConfig.getCdsMrenclave());
1492         } catch (Quote.InvalidQuoteFormatException | UnauthenticatedQuoteException | SignatureException | UnauthenticatedResponseException | InvalidKeyException e) {
1493             throw new IOException(e);
1494         }
1495     }
1496
1497     private Pair<Long, List<SendMessageResult>> sendMessage(
1498             SignalServiceDataMessage.Builder messageBuilder, Set<RecipientId> recipientIds
1499     ) throws IOException {
1500         final var timestamp = System.currentTimeMillis();
1501         messageBuilder.withTimestamp(timestamp);
1502         getOrCreateMessagePipe();
1503         getOrCreateUnidentifiedMessagePipe();
1504         SignalServiceDataMessage message = null;
1505         try {
1506             message = messageBuilder.build();
1507             if (message.getGroupContext().isPresent()) {
1508                 try {
1509                     var messageSender = createMessageSender();
1510                     final var isRecipientUpdate = false;
1511                     final var recipientIdList = new ArrayList<>(recipientIds);
1512                     final var addresses = recipientIdList.stream()
1513                             .map(this::resolveSignalServiceAddress)
1514                             .collect(Collectors.toList());
1515                     var result = messageSender.sendMessage(addresses,
1516                             unidentifiedAccessHelper.getAccessFor(recipientIdList),
1517                             isRecipientUpdate,
1518                             message);
1519
1520                     for (var r : result) {
1521                         if (r.getIdentityFailure() != null) {
1522                             final var recipientId = resolveRecipient(r.getAddress());
1523                             final var newIdentity = account.getIdentityKeyStore()
1524                                     .saveIdentity(recipientId, r.getIdentityFailure().getIdentityKey(), new Date());
1525                             if (newIdentity) {
1526                                 account.getSessionStore().archiveSessions(recipientId);
1527                             }
1528                         }
1529                     }
1530
1531                     return new Pair<>(timestamp, result);
1532                 } catch (UntrustedIdentityException e) {
1533                     return new Pair<>(timestamp, List.of());
1534                 }
1535             } else {
1536                 // Send to all individually, so sync messages are sent correctly
1537                 messageBuilder.withProfileKey(account.getProfileKey().serialize());
1538                 var results = new ArrayList<SendMessageResult>(recipientIds.size());
1539                 for (var recipientId : recipientIds) {
1540                     final var contact = account.getContactStore().getContact(recipientId);
1541                     final var expirationTime = contact != null ? contact.getMessageExpirationTime() : 0;
1542                     messageBuilder.withExpiration(expirationTime);
1543                     message = messageBuilder.build();
1544                     results.add(sendMessage(recipientId, message));
1545                 }
1546                 return new Pair<>(timestamp, results);
1547             }
1548         } finally {
1549             if (message != null && message.isEndSession()) {
1550                 for (var recipient : recipientIds) {
1551                     handleEndSession(recipient);
1552                 }
1553             }
1554         }
1555     }
1556
1557     private Pair<Long, SendMessageResult> sendSelfMessage(
1558             SignalServiceDataMessage.Builder messageBuilder
1559     ) throws IOException {
1560         final var timestamp = System.currentTimeMillis();
1561         messageBuilder.withTimestamp(timestamp);
1562         getOrCreateMessagePipe();
1563         getOrCreateUnidentifiedMessagePipe();
1564         final var recipientId = account.getSelfRecipientId();
1565
1566         final var contact = account.getContactStore().getContact(recipientId);
1567         final var expirationTime = contact != null ? contact.getMessageExpirationTime() : 0;
1568         messageBuilder.withExpiration(expirationTime);
1569
1570         var message = messageBuilder.build();
1571         final var result = sendSelfMessage(message);
1572         return new Pair<>(timestamp, result);
1573     }
1574
1575     private SendMessageResult sendSelfMessage(SignalServiceDataMessage message) throws IOException {
1576         var messageSender = createMessageSender();
1577
1578         var recipientId = account.getSelfRecipientId();
1579
1580         final var unidentifiedAccess = unidentifiedAccessHelper.getAccessFor(recipientId);
1581         var recipient = resolveSignalServiceAddress(recipientId);
1582         var transcript = new SentTranscriptMessage(Optional.of(recipient),
1583                 message.getTimestamp(),
1584                 message,
1585                 message.getExpiresInSeconds(),
1586                 Map.of(recipient, unidentifiedAccess.isPresent()),
1587                 false);
1588         var syncMessage = SignalServiceSyncMessage.forSentTranscript(transcript);
1589
1590         try {
1591             var startTime = System.currentTimeMillis();
1592             messageSender.sendMessage(syncMessage, unidentifiedAccess);
1593             return SendMessageResult.success(recipient,
1594                     unidentifiedAccess.isPresent(),
1595                     false,
1596                     System.currentTimeMillis() - startTime);
1597         } catch (UntrustedIdentityException e) {
1598             return SendMessageResult.identityFailure(recipient, e.getIdentityKey());
1599         }
1600     }
1601
1602     private SendMessageResult sendMessage(
1603             RecipientId recipientId, SignalServiceDataMessage message
1604     ) throws IOException {
1605         var messageSender = createMessageSender();
1606
1607         final var address = resolveSignalServiceAddress(recipientId);
1608         try {
1609             try {
1610                 return messageSender.sendMessage(address, unidentifiedAccessHelper.getAccessFor(recipientId), message);
1611             } catch (UnregisteredUserException e) {
1612                 final var newRecipientId = refreshRegisteredUser(recipientId);
1613                 return messageSender.sendMessage(resolveSignalServiceAddress(newRecipientId),
1614                         unidentifiedAccessHelper.getAccessFor(newRecipientId),
1615                         message);
1616             }
1617         } catch (UntrustedIdentityException e) {
1618             return SendMessageResult.identityFailure(address, e.getIdentityKey());
1619         }
1620     }
1621
1622     private SendMessageResult sendNullMessage(RecipientId recipientId) throws IOException {
1623         var messageSender = createMessageSender();
1624
1625         final var address = resolveSignalServiceAddress(recipientId);
1626         try {
1627             try {
1628                 return messageSender.sendNullMessage(address, unidentifiedAccessHelper.getAccessFor(recipientId));
1629             } catch (UnregisteredUserException e) {
1630                 final var newRecipientId = refreshRegisteredUser(recipientId);
1631                 final var newAddress = resolveSignalServiceAddress(newRecipientId);
1632                 return messageSender.sendNullMessage(newAddress, unidentifiedAccessHelper.getAccessFor(newRecipientId));
1633             }
1634         } catch (UntrustedIdentityException e) {
1635             return SendMessageResult.identityFailure(address, e.getIdentityKey());
1636         }
1637     }
1638
1639     private SignalServiceContent decryptMessage(SignalServiceEnvelope envelope) throws InvalidMetadataMessageException, ProtocolInvalidMessageException, ProtocolDuplicateMessageException, ProtocolLegacyMessageException, ProtocolInvalidKeyIdException, InvalidMetadataVersionException, ProtocolInvalidVersionException, ProtocolNoSessionException, ProtocolInvalidKeyException, SelfSendException, UnsupportedDataMessageException, ProtocolUntrustedIdentityException {
1640         var cipher = new SignalServiceCipher(account.getSelfAddress(),
1641                 account.getSignalProtocolStore(),
1642                 sessionLock,
1643                 certificateValidator);
1644         return cipher.decrypt(envelope);
1645     }
1646
1647     private void handleEndSession(RecipientId recipientId) {
1648         account.getSessionStore().deleteAllSessions(recipientId);
1649     }
1650
1651     private List<HandleAction> handleSignalServiceDataMessage(
1652             SignalServiceDataMessage message,
1653             boolean isSync,
1654             SignalServiceAddress source,
1655             SignalServiceAddress destination,
1656             boolean ignoreAttachments
1657     ) {
1658         var actions = new ArrayList<HandleAction>();
1659         if (message.getGroupContext().isPresent()) {
1660             if (message.getGroupContext().get().getGroupV1().isPresent()) {
1661                 var groupInfo = message.getGroupContext().get().getGroupV1().get();
1662                 var groupId = GroupId.v1(groupInfo.getGroupId());
1663                 var group = getGroup(groupId);
1664                 if (group == null || group instanceof GroupInfoV1) {
1665                     var groupV1 = (GroupInfoV1) group;
1666                     switch (groupInfo.getType()) {
1667                         case UPDATE: {
1668                             if (groupV1 == null) {
1669                                 groupV1 = new GroupInfoV1(groupId);
1670                             }
1671
1672                             if (groupInfo.getAvatar().isPresent()) {
1673                                 var avatar = groupInfo.getAvatar().get();
1674                                 downloadGroupAvatar(avatar, groupV1.getGroupId());
1675                             }
1676
1677                             if (groupInfo.getName().isPresent()) {
1678                                 groupV1.name = groupInfo.getName().get();
1679                             }
1680
1681                             if (groupInfo.getMembers().isPresent()) {
1682                                 groupV1.addMembers(groupInfo.getMembers()
1683                                         .get()
1684                                         .stream()
1685                                         .map(this::resolveRecipient)
1686                                         .collect(Collectors.toSet()));
1687                             }
1688
1689                             account.getGroupStore().updateGroup(groupV1);
1690                             break;
1691                         }
1692                         case DELIVER:
1693                             if (groupV1 == null && !isSync) {
1694                                 actions.add(new SendGroupInfoRequestAction(source, groupId));
1695                             }
1696                             break;
1697                         case QUIT: {
1698                             if (groupV1 != null) {
1699                                 groupV1.removeMember(resolveRecipient(source));
1700                                 account.getGroupStore().updateGroup(groupV1);
1701                             }
1702                             break;
1703                         }
1704                         case REQUEST_INFO:
1705                             if (groupV1 != null && !isSync) {
1706                                 actions.add(new SendGroupInfoAction(source, groupV1.getGroupId()));
1707                             }
1708                             break;
1709                     }
1710                 } else {
1711                     // Received a group v1 message for a v2 group
1712                 }
1713             }
1714             if (message.getGroupContext().get().getGroupV2().isPresent()) {
1715                 final var groupContext = message.getGroupContext().get().getGroupV2().get();
1716                 final var groupMasterKey = groupContext.getMasterKey();
1717
1718                 getOrMigrateGroup(groupMasterKey,
1719                         groupContext.getRevision(),
1720                         groupContext.hasSignedGroupChange() ? groupContext.getSignedGroupChange() : null);
1721             }
1722         }
1723
1724         final var conversationPartnerAddress = isSync ? destination : source;
1725         if (conversationPartnerAddress != null && message.isEndSession()) {
1726             handleEndSession(resolveRecipient(conversationPartnerAddress));
1727         }
1728         if (message.isExpirationUpdate() || message.getBody().isPresent()) {
1729             if (message.getGroupContext().isPresent()) {
1730                 if (message.getGroupContext().get().getGroupV1().isPresent()) {
1731                     var groupInfo = message.getGroupContext().get().getGroupV1().get();
1732                     var group = account.getGroupStore().getOrCreateGroupV1(GroupId.v1(groupInfo.getGroupId()));
1733                     if (group != null) {
1734                         if (group.messageExpirationTime != message.getExpiresInSeconds()) {
1735                             group.messageExpirationTime = message.getExpiresInSeconds();
1736                             account.getGroupStore().updateGroup(group);
1737                         }
1738                     }
1739                 } else if (message.getGroupContext().get().getGroupV2().isPresent()) {
1740                     // disappearing message timer already stored in the DecryptedGroup
1741                 }
1742             } else if (conversationPartnerAddress != null) {
1743                 setExpirationTimer(resolveRecipient(conversationPartnerAddress), message.getExpiresInSeconds());
1744             }
1745         }
1746         if (!ignoreAttachments) {
1747             if (message.getAttachments().isPresent()) {
1748                 for (var attachment : message.getAttachments().get()) {
1749                     downloadAttachment(attachment);
1750                 }
1751             }
1752             if (message.getSharedContacts().isPresent()) {
1753                 for (var contact : message.getSharedContacts().get()) {
1754                     if (contact.getAvatar().isPresent()) {
1755                         downloadAttachment(contact.getAvatar().get().getAttachment());
1756                     }
1757                 }
1758             }
1759         }
1760         if (message.getProfileKey().isPresent() && message.getProfileKey().get().length == 32) {
1761             final ProfileKey profileKey;
1762             try {
1763                 profileKey = new ProfileKey(message.getProfileKey().get());
1764             } catch (InvalidInputException e) {
1765                 throw new AssertionError(e);
1766             }
1767             if (source.matches(account.getSelfAddress())) {
1768                 this.account.setProfileKey(profileKey);
1769             }
1770             this.account.getProfileStore().storeProfileKey(resolveRecipient(source), profileKey);
1771         }
1772         if (message.getPreviews().isPresent()) {
1773             final var previews = message.getPreviews().get();
1774             for (var preview : previews) {
1775                 if (preview.getImage().isPresent()) {
1776                     downloadAttachment(preview.getImage().get());
1777                 }
1778             }
1779         }
1780         if (message.getQuote().isPresent()) {
1781             final var quote = message.getQuote().get();
1782
1783             for (var quotedAttachment : quote.getAttachments()) {
1784                 final var thumbnail = quotedAttachment.getThumbnail();
1785                 if (thumbnail != null) {
1786                     downloadAttachment(thumbnail);
1787                 }
1788             }
1789         }
1790         if (message.getSticker().isPresent()) {
1791             final var messageSticker = message.getSticker().get();
1792             final var stickerPackId = StickerPackId.deserialize(messageSticker.getPackId());
1793             var sticker = account.getStickerStore().getSticker(stickerPackId);
1794             if (sticker == null) {
1795                 sticker = new Sticker(stickerPackId, messageSticker.getPackKey());
1796                 account.getStickerStore().updateSticker(sticker);
1797             }
1798         }
1799         return actions;
1800     }
1801
1802     private GroupInfoV2 getOrMigrateGroup(
1803             final GroupMasterKey groupMasterKey, final int revision, final byte[] signedGroupChange
1804     ) {
1805         final var groupSecretParams = GroupSecretParams.deriveFromMasterKey(groupMasterKey);
1806
1807         var groupId = GroupUtils.getGroupIdV2(groupSecretParams);
1808         var groupInfo = getGroup(groupId);
1809         final GroupInfoV2 groupInfoV2;
1810         if (groupInfo instanceof GroupInfoV1) {
1811             // Received a v2 group message for a v1 group, we need to locally migrate the group
1812             account.getGroupStore().deleteGroupV1(((GroupInfoV1) groupInfo).getGroupId());
1813             groupInfoV2 = new GroupInfoV2(groupId, groupMasterKey);
1814             logger.info("Locally migrated group {} to group v2, id: {}",
1815                     groupInfo.getGroupId().toBase64(),
1816                     groupInfoV2.getGroupId().toBase64());
1817         } else if (groupInfo instanceof GroupInfoV2) {
1818             groupInfoV2 = (GroupInfoV2) groupInfo;
1819         } else {
1820             groupInfoV2 = new GroupInfoV2(groupId, groupMasterKey);
1821         }
1822
1823         if (groupInfoV2.getGroup() == null || groupInfoV2.getGroup().getRevision() < revision) {
1824             DecryptedGroup group = null;
1825             if (signedGroupChange != null
1826                     && groupInfoV2.getGroup() != null
1827                     && groupInfoV2.getGroup().getRevision() + 1 == revision) {
1828                 group = groupV2Helper.getUpdatedDecryptedGroup(groupInfoV2.getGroup(),
1829                         signedGroupChange,
1830                         groupMasterKey);
1831             }
1832             if (group == null) {
1833                 group = groupV2Helper.getDecryptedGroup(groupSecretParams);
1834             }
1835             if (group != null) {
1836                 storeProfileKeysFromMembers(group);
1837                 final var avatar = group.getAvatar();
1838                 if (avatar != null && !avatar.isEmpty()) {
1839                     downloadGroupAvatar(groupId, groupSecretParams, avatar);
1840                 }
1841             }
1842             groupInfoV2.setGroup(group, this::resolveRecipient);
1843             account.getGroupStore().updateGroup(groupInfoV2);
1844         }
1845
1846         return groupInfoV2;
1847     }
1848
1849     private void storeProfileKeysFromMembers(final DecryptedGroup group) {
1850         for (var member : group.getMembersList()) {
1851             final var uuid = UuidUtil.parseOrThrow(member.getUuid().toByteArray());
1852             final var recipientId = account.getRecipientStore().resolveRecipient(uuid);
1853             try {
1854                 account.getProfileStore()
1855                         .storeProfileKey(recipientId, new ProfileKey(member.getProfileKey().toByteArray()));
1856             } catch (InvalidInputException ignored) {
1857             }
1858         }
1859     }
1860
1861     private void retryFailedReceivedMessages(ReceiveMessageHandler handler, boolean ignoreAttachments) {
1862         Set<HandleAction> queuedActions = new HashSet<>();
1863         for (var cachedMessage : account.getMessageCache().getCachedMessages()) {
1864             var actions = retryFailedReceivedMessage(handler, ignoreAttachments, cachedMessage);
1865             if (actions != null) {
1866                 queuedActions.addAll(actions);
1867             }
1868         }
1869         for (var action : queuedActions) {
1870             try {
1871                 action.execute(this);
1872             } catch (Throwable e) {
1873                 logger.warn("Message action failed.", e);
1874             }
1875         }
1876     }
1877
1878     private List<HandleAction> retryFailedReceivedMessage(
1879             final ReceiveMessageHandler handler, final boolean ignoreAttachments, final CachedMessage cachedMessage
1880     ) {
1881         var envelope = cachedMessage.loadEnvelope();
1882         if (envelope == null) {
1883             return null;
1884         }
1885         SignalServiceContent content = null;
1886         List<HandleAction> actions = null;
1887         if (!envelope.isReceipt()) {
1888             try {
1889                 content = decryptMessage(envelope);
1890             } catch (ProtocolUntrustedIdentityException e) {
1891                 if (!envelope.hasSource()) {
1892                     final var identifier = e.getSender();
1893                     final var recipientId = resolveRecipient(identifier);
1894                     try {
1895                         account.getMessageCache().replaceSender(cachedMessage, recipientId);
1896                     } catch (IOException ioException) {
1897                         logger.warn("Failed to move cached message to recipient folder: {}", ioException.getMessage());
1898                     }
1899                 }
1900                 return null;
1901             } catch (Exception er) {
1902                 // All other errors are not recoverable, so delete the cached message
1903                 cachedMessage.delete();
1904                 return null;
1905             }
1906             actions = handleMessage(envelope, content, ignoreAttachments);
1907         }
1908         handler.handleMessage(envelope, content, null);
1909         cachedMessage.delete();
1910         return actions;
1911     }
1912
1913     public void receiveMessages(
1914             long timeout,
1915             TimeUnit unit,
1916             boolean returnOnTimeout,
1917             boolean ignoreAttachments,
1918             ReceiveMessageHandler handler
1919     ) throws IOException {
1920         retryFailedReceivedMessages(handler, ignoreAttachments);
1921
1922         Set<HandleAction> queuedActions = null;
1923
1924         final var messagePipe = getOrCreateMessagePipe();
1925
1926         var hasCaughtUpWithOldMessages = false;
1927
1928         while (true) {
1929             SignalServiceEnvelope envelope;
1930             SignalServiceContent content = null;
1931             Exception exception = null;
1932             final CachedMessage[] cachedMessage = {null};
1933             try {
1934                 var result = messagePipe.readOrEmpty(timeout, unit, envelope1 -> {
1935                     final var recipientId = envelope1.hasSource()
1936                             ? resolveRecipient(envelope1.getSourceIdentifier())
1937                             : null;
1938                     // store message on disk, before acknowledging receipt to the server
1939                     cachedMessage[0] = account.getMessageCache().cacheMessage(envelope1, recipientId);
1940                 });
1941                 if (result.isPresent()) {
1942                     envelope = result.get();
1943                 } else {
1944                     // Received indicator that server queue is empty
1945                     hasCaughtUpWithOldMessages = true;
1946
1947                     if (queuedActions != null) {
1948                         for (var action : queuedActions) {
1949                             try {
1950                                 action.execute(this);
1951                             } catch (Throwable e) {
1952                                 logger.warn("Message action failed.", e);
1953                             }
1954                         }
1955                         queuedActions.clear();
1956                         queuedActions = null;
1957                     }
1958
1959                     // Continue to wait another timeout for new messages
1960                     continue;
1961                 }
1962             } catch (TimeoutException e) {
1963                 if (returnOnTimeout) return;
1964                 continue;
1965             }
1966
1967             if (envelope.hasSource()) {
1968                 // Store uuid if we don't have it already
1969                 // address/uuid in envelope is sent by server
1970                 resolveRecipientTrusted(envelope.getSourceAddress());
1971             }
1972             final var notAGroupMember = isNotAGroupMember(envelope, content);
1973             if (!envelope.isReceipt()) {
1974                 try {
1975                     content = decryptMessage(envelope);
1976                 } catch (Exception e) {
1977                     exception = e;
1978                 }
1979                 if (!envelope.hasSource() && content != null) {
1980                     // Store uuid if we don't have it already
1981                     // address/uuid is validated by unidentified sender certificate
1982                     resolveRecipientTrusted(content.getSender());
1983                 }
1984                 var actions = handleMessage(envelope, content, ignoreAttachments);
1985                 if (exception instanceof ProtocolInvalidMessageException) {
1986                     final var sender = resolveRecipient(((ProtocolInvalidMessageException) exception).getSender());
1987                     logger.debug("Received invalid message, queuing renew session action.");
1988                     actions.add(new RenewSessionAction(sender));
1989                 }
1990                 if (hasCaughtUpWithOldMessages) {
1991                     for (var action : actions) {
1992                         try {
1993                             action.execute(this);
1994                         } catch (Throwable e) {
1995                             logger.warn("Message action failed.", e);
1996                         }
1997                     }
1998                 } else {
1999                     if (queuedActions == null) {
2000                         queuedActions = new HashSet<>();
2001                     }
2002                     queuedActions.addAll(actions);
2003                 }
2004             }
2005             if (isMessageBlocked(envelope, content)) {
2006                 logger.info("Ignoring a message from blocked user/group: {}", envelope.getTimestamp());
2007             } else if (notAGroupMember) {
2008                 logger.info("Ignoring a message from a non group member: {}", envelope.getTimestamp());
2009             } else {
2010                 handler.handleMessage(envelope, content, exception);
2011             }
2012             if (cachedMessage[0] != null) {
2013                 if (exception instanceof ProtocolUntrustedIdentityException) {
2014                     final var identifier = ((ProtocolUntrustedIdentityException) exception).getSender();
2015                     final var recipientId = resolveRecipient(identifier);
2016                     queuedActions.add(new RetrieveProfileAction(recipientId));
2017                     if (!envelope.hasSource()) {
2018                         try {
2019                             cachedMessage[0] = account.getMessageCache().replaceSender(cachedMessage[0], recipientId);
2020                         } catch (IOException ioException) {
2021                             logger.warn("Failed to move cached message to recipient folder: {}",
2022                                     ioException.getMessage());
2023                         }
2024                     }
2025                 } else {
2026                     cachedMessage[0].delete();
2027                 }
2028             }
2029         }
2030     }
2031
2032     private boolean isMessageBlocked(
2033             SignalServiceEnvelope envelope, SignalServiceContent content
2034     ) {
2035         SignalServiceAddress source;
2036         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
2037             source = envelope.getSourceAddress();
2038         } else if (content != null) {
2039             source = content.getSender();
2040         } else {
2041             return false;
2042         }
2043         final var recipientId = resolveRecipient(source);
2044         if (isContactBlocked(recipientId)) {
2045             return true;
2046         }
2047
2048         if (content != null && content.getDataMessage().isPresent()) {
2049             var message = content.getDataMessage().get();
2050             if (message.getGroupContext().isPresent()) {
2051                 var groupId = GroupUtils.getGroupId(message.getGroupContext().get());
2052                 var group = getGroup(groupId);
2053                 if (group != null && group.isBlocked()) {
2054                     return true;
2055                 }
2056             }
2057         }
2058         return false;
2059     }
2060
2061     public boolean isContactBlocked(final String identifier) throws InvalidNumberException {
2062         final var recipientId = canonicalizeAndResolveRecipient(identifier);
2063         return isContactBlocked(recipientId);
2064     }
2065
2066     private boolean isContactBlocked(final RecipientId recipientId) {
2067         var sourceContact = account.getContactStore().getContact(recipientId);
2068         return sourceContact != null && sourceContact.isBlocked();
2069     }
2070
2071     private boolean isNotAGroupMember(
2072             SignalServiceEnvelope envelope, SignalServiceContent content
2073     ) {
2074         SignalServiceAddress source;
2075         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
2076             source = envelope.getSourceAddress();
2077         } else if (content != null) {
2078             source = content.getSender();
2079         } else {
2080             return false;
2081         }
2082
2083         if (content != null && content.getDataMessage().isPresent()) {
2084             var message = content.getDataMessage().get();
2085             if (message.getGroupContext().isPresent()) {
2086                 if (message.getGroupContext().get().getGroupV1().isPresent()) {
2087                     var groupInfo = message.getGroupContext().get().getGroupV1().get();
2088                     if (groupInfo.getType() == SignalServiceGroup.Type.QUIT) {
2089                         return false;
2090                     }
2091                 }
2092                 var groupId = GroupUtils.getGroupId(message.getGroupContext().get());
2093                 var group = getGroup(groupId);
2094                 if (group != null && !group.isMember(resolveRecipient(source))) {
2095                     return true;
2096                 }
2097             }
2098         }
2099         return false;
2100     }
2101
2102     private List<HandleAction> handleMessage(
2103             SignalServiceEnvelope envelope, SignalServiceContent content, boolean ignoreAttachments
2104     ) {
2105         var actions = new ArrayList<HandleAction>();
2106         if (content != null) {
2107             final SignalServiceAddress sender;
2108             if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
2109                 sender = envelope.getSourceAddress();
2110             } else {
2111                 sender = content.getSender();
2112             }
2113
2114             if (content.getDataMessage().isPresent()) {
2115                 var message = content.getDataMessage().get();
2116
2117                 if (content.isNeedsReceipt()) {
2118                     actions.add(new SendReceiptAction(sender, message.getTimestamp()));
2119                 }
2120
2121                 actions.addAll(handleSignalServiceDataMessage(message,
2122                         false,
2123                         sender,
2124                         account.getSelfAddress(),
2125                         ignoreAttachments));
2126             }
2127             if (content.getSyncMessage().isPresent()) {
2128                 account.setMultiDevice(true);
2129                 var syncMessage = content.getSyncMessage().get();
2130                 if (syncMessage.getSent().isPresent()) {
2131                     var message = syncMessage.getSent().get();
2132                     final var destination = message.getDestination().orNull();
2133                     actions.addAll(handleSignalServiceDataMessage(message.getMessage(),
2134                             true,
2135                             sender,
2136                             destination,
2137                             ignoreAttachments));
2138                 }
2139                 if (syncMessage.getRequest().isPresent() && account.isMasterDevice()) {
2140                     var rm = syncMessage.getRequest().get();
2141                     if (rm.isContactsRequest()) {
2142                         actions.add(SendSyncContactsAction.create());
2143                     }
2144                     if (rm.isGroupsRequest()) {
2145                         actions.add(SendSyncGroupsAction.create());
2146                     }
2147                     if (rm.isBlockedListRequest()) {
2148                         actions.add(SendSyncBlockedListAction.create());
2149                     }
2150                     // TODO Handle rm.isConfigurationRequest(); rm.isKeysRequest();
2151                 }
2152                 if (syncMessage.getGroups().isPresent()) {
2153                     File tmpFile = null;
2154                     try {
2155                         tmpFile = IOUtils.createTempFile();
2156                         final var groupsMessage = syncMessage.getGroups().get();
2157                         try (var attachmentAsStream = retrieveAttachmentAsStream(groupsMessage.asPointer(), tmpFile)) {
2158                             var s = new DeviceGroupsInputStream(attachmentAsStream);
2159                             DeviceGroup g;
2160                             while ((g = s.read()) != null) {
2161                                 var syncGroup = account.getGroupStore().getOrCreateGroupV1(GroupId.v1(g.getId()));
2162                                 if (syncGroup != null) {
2163                                     if (g.getName().isPresent()) {
2164                                         syncGroup.name = g.getName().get();
2165                                     }
2166                                     syncGroup.addMembers(g.getMembers()
2167                                             .stream()
2168                                             .map(this::resolveRecipient)
2169                                             .collect(Collectors.toSet()));
2170                                     if (!g.isActive()) {
2171                                         syncGroup.removeMember(account.getSelfRecipientId());
2172                                     } else {
2173                                         // Add ourself to the member set as it's marked as active
2174                                         syncGroup.addMembers(List.of(account.getSelfRecipientId()));
2175                                     }
2176                                     syncGroup.blocked = g.isBlocked();
2177                                     if (g.getColor().isPresent()) {
2178                                         syncGroup.color = g.getColor().get();
2179                                     }
2180
2181                                     if (g.getAvatar().isPresent()) {
2182                                         downloadGroupAvatar(g.getAvatar().get(), syncGroup.getGroupId());
2183                                     }
2184                                     syncGroup.archived = g.isArchived();
2185                                     account.getGroupStore().updateGroup(syncGroup);
2186                                 }
2187                             }
2188                         }
2189                     } catch (Exception e) {
2190                         logger.warn("Failed to handle received sync groups “{}”, ignoring: {}",
2191                                 tmpFile,
2192                                 e.getMessage());
2193                     } finally {
2194                         if (tmpFile != null) {
2195                             try {
2196                                 Files.delete(tmpFile.toPath());
2197                             } catch (IOException e) {
2198                                 logger.warn("Failed to delete received groups temp file “{}”, ignoring: {}",
2199                                         tmpFile,
2200                                         e.getMessage());
2201                             }
2202                         }
2203                     }
2204                 }
2205                 if (syncMessage.getBlockedList().isPresent()) {
2206                     final var blockedListMessage = syncMessage.getBlockedList().get();
2207                     for (var address : blockedListMessage.getAddresses()) {
2208                         setContactBlocked(resolveRecipient(address), true);
2209                     }
2210                     for (var groupId : blockedListMessage.getGroupIds()
2211                             .stream()
2212                             .map(GroupId::unknownVersion)
2213                             .collect(Collectors.toSet())) {
2214                         try {
2215                             setGroupBlocked(groupId, true);
2216                         } catch (GroupNotFoundException e) {
2217                             logger.warn("BlockedListMessage contained groupID that was not found in GroupStore: {}",
2218                                     groupId.toBase64());
2219                         }
2220                     }
2221                 }
2222                 if (syncMessage.getContacts().isPresent()) {
2223                     File tmpFile = null;
2224                     try {
2225                         tmpFile = IOUtils.createTempFile();
2226                         final var contactsMessage = syncMessage.getContacts().get();
2227                         try (var attachmentAsStream = retrieveAttachmentAsStream(contactsMessage.getContactsStream()
2228                                 .asPointer(), tmpFile)) {
2229                             var s = new DeviceContactsInputStream(attachmentAsStream);
2230                             DeviceContact c;
2231                             while ((c = s.read()) != null) {
2232                                 if (c.getAddress().matches(account.getSelfAddress()) && c.getProfileKey().isPresent()) {
2233                                     account.setProfileKey(c.getProfileKey().get());
2234                                 }
2235                                 final var recipientId = resolveRecipientTrusted(c.getAddress());
2236                                 var contact = account.getContactStore().getContact(recipientId);
2237                                 final var builder = contact == null
2238                                         ? Contact.newBuilder()
2239                                         : Contact.newBuilder(contact);
2240                                 if (c.getName().isPresent()) {
2241                                     builder.withName(c.getName().get());
2242                                 }
2243                                 if (c.getColor().isPresent()) {
2244                                     builder.withColor(c.getColor().get());
2245                                 }
2246                                 if (c.getProfileKey().isPresent()) {
2247                                     account.getProfileStore().storeProfileKey(recipientId, c.getProfileKey().get());
2248                                 }
2249                                 if (c.getVerified().isPresent()) {
2250                                     final var verifiedMessage = c.getVerified().get();
2251                                     account.getIdentityKeyStore()
2252                                             .setIdentityTrustLevel(resolveRecipientTrusted(verifiedMessage.getDestination()),
2253                                                     verifiedMessage.getIdentityKey(),
2254                                                     TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
2255                                 }
2256                                 if (c.getExpirationTimer().isPresent()) {
2257                                     builder.withMessageExpirationTime(c.getExpirationTimer().get());
2258                                 }
2259                                 builder.withBlocked(c.isBlocked());
2260                                 builder.withArchived(c.isArchived());
2261                                 account.getContactStore().storeContact(recipientId, builder.build());
2262
2263                                 if (c.getAvatar().isPresent()) {
2264                                     downloadContactAvatar(c.getAvatar().get(), c.getAddress());
2265                                 }
2266                             }
2267                         }
2268                     } catch (Exception e) {
2269                         logger.warn("Failed to handle received sync contacts “{}”, ignoring: {}",
2270                                 tmpFile,
2271                                 e.getMessage());
2272                     } finally {
2273                         if (tmpFile != null) {
2274                             try {
2275                                 Files.delete(tmpFile.toPath());
2276                             } catch (IOException e) {
2277                                 logger.warn("Failed to delete received contacts temp file “{}”, ignoring: {}",
2278                                         tmpFile,
2279                                         e.getMessage());
2280                             }
2281                         }
2282                     }
2283                 }
2284                 if (syncMessage.getVerified().isPresent()) {
2285                     final var verifiedMessage = syncMessage.getVerified().get();
2286                     account.getIdentityKeyStore()
2287                             .setIdentityTrustLevel(resolveRecipientTrusted(verifiedMessage.getDestination()),
2288                                     verifiedMessage.getIdentityKey(),
2289                                     TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
2290                 }
2291                 if (syncMessage.getStickerPackOperations().isPresent()) {
2292                     final var stickerPackOperationMessages = syncMessage.getStickerPackOperations().get();
2293                     for (var m : stickerPackOperationMessages) {
2294                         if (!m.getPackId().isPresent()) {
2295                             continue;
2296                         }
2297                         final var stickerPackId = StickerPackId.deserialize(m.getPackId().get());
2298                         var sticker = account.getStickerStore().getSticker(stickerPackId);
2299                         if (sticker == null) {
2300                             if (!m.getPackKey().isPresent()) {
2301                                 continue;
2302                             }
2303                             sticker = new Sticker(stickerPackId, m.getPackKey().get());
2304                         }
2305                         sticker.setInstalled(!m.getType().isPresent()
2306                                 || m.getType().get() == StickerPackOperationMessage.Type.INSTALL);
2307                         account.getStickerStore().updateSticker(sticker);
2308                     }
2309                 }
2310                 if (syncMessage.getFetchType().isPresent()) {
2311                     switch (syncMessage.getFetchType().get()) {
2312                         case LOCAL_PROFILE:
2313                             getRecipientProfile(account.getSelfRecipientId(), true);
2314                         case STORAGE_MANIFEST:
2315                             // TODO
2316                     }
2317                 }
2318                 if (syncMessage.getKeys().isPresent()) {
2319                     final var keysMessage = syncMessage.getKeys().get();
2320                     if (keysMessage.getStorageService().isPresent()) {
2321                         final var storageKey = keysMessage.getStorageService().get();
2322                         account.setStorageKey(storageKey);
2323                     }
2324                 }
2325                 if (syncMessage.getConfiguration().isPresent()) {
2326                     // TODO
2327                 }
2328             }
2329         }
2330         return actions;
2331     }
2332
2333     private void downloadContactAvatar(SignalServiceAttachment avatar, SignalServiceAddress address) {
2334         try {
2335             avatarStore.storeContactAvatar(address, outputStream -> retrieveAttachment(avatar, outputStream));
2336         } catch (IOException e) {
2337             logger.warn("Failed to download avatar for contact {}, ignoring: {}", address, e.getMessage());
2338         }
2339     }
2340
2341     private void downloadGroupAvatar(SignalServiceAttachment avatar, GroupId groupId) {
2342         try {
2343             avatarStore.storeGroupAvatar(groupId, outputStream -> retrieveAttachment(avatar, outputStream));
2344         } catch (IOException e) {
2345             logger.warn("Failed to download avatar for group {}, ignoring: {}", groupId.toBase64(), e.getMessage());
2346         }
2347     }
2348
2349     private void downloadGroupAvatar(GroupId groupId, GroupSecretParams groupSecretParams, String cdnKey) {
2350         try {
2351             avatarStore.storeGroupAvatar(groupId,
2352                     outputStream -> retrieveGroupV2Avatar(groupSecretParams, cdnKey, outputStream));
2353         } catch (IOException e) {
2354             logger.warn("Failed to download avatar for group {}, ignoring: {}", groupId.toBase64(), e.getMessage());
2355         }
2356     }
2357
2358     private void downloadProfileAvatar(
2359             SignalServiceAddress address, String avatarPath, ProfileKey profileKey
2360     ) {
2361         try {
2362             avatarStore.storeProfileAvatar(address,
2363                     outputStream -> retrieveProfileAvatar(avatarPath, profileKey, outputStream));
2364         } catch (Throwable e) {
2365             logger.warn("Failed to download profile avatar, ignoring: {}", e.getMessage());
2366         }
2367     }
2368
2369     public File getAttachmentFile(SignalServiceAttachmentRemoteId attachmentId) {
2370         return attachmentStore.getAttachmentFile(attachmentId);
2371     }
2372
2373     private void downloadAttachment(final SignalServiceAttachment attachment) {
2374         if (!attachment.isPointer()) {
2375             logger.warn("Invalid state, can't store an attachment stream.");
2376         }
2377
2378         var pointer = attachment.asPointer();
2379         if (pointer.getPreview().isPresent()) {
2380             final var preview = pointer.getPreview().get();
2381             try {
2382                 attachmentStore.storeAttachmentPreview(pointer.getRemoteId(),
2383                         outputStream -> outputStream.write(preview, 0, preview.length));
2384             } catch (IOException e) {
2385                 logger.warn("Failed to download attachment preview, ignoring: {}", e.getMessage());
2386             }
2387         }
2388
2389         try {
2390             attachmentStore.storeAttachment(pointer.getRemoteId(),
2391                     outputStream -> retrieveAttachmentPointer(pointer, outputStream));
2392         } catch (IOException e) {
2393             logger.warn("Failed to download attachment ({}), ignoring: {}", pointer.getRemoteId(), e.getMessage());
2394         }
2395     }
2396
2397     private void retrieveGroupV2Avatar(
2398             GroupSecretParams groupSecretParams, String cdnKey, OutputStream outputStream
2399     ) throws IOException {
2400         var groupOperations = groupsV2Operations.forGroup(groupSecretParams);
2401
2402         var tmpFile = IOUtils.createTempFile();
2403         try (InputStream input = messageReceiver.retrieveGroupsV2ProfileAvatar(cdnKey,
2404                 tmpFile,
2405                 ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
2406             var encryptedData = IOUtils.readFully(input);
2407
2408             var decryptedData = groupOperations.decryptAvatar(encryptedData);
2409             outputStream.write(decryptedData);
2410         } finally {
2411             try {
2412                 Files.delete(tmpFile.toPath());
2413             } catch (IOException e) {
2414                 logger.warn("Failed to delete received group avatar temp file “{}”, ignoring: {}",
2415                         tmpFile,
2416                         e.getMessage());
2417             }
2418         }
2419     }
2420
2421     private void retrieveProfileAvatar(
2422             String avatarPath, ProfileKey profileKey, OutputStream outputStream
2423     ) throws IOException {
2424         var tmpFile = IOUtils.createTempFile();
2425         try (var input = messageReceiver.retrieveProfileAvatar(avatarPath,
2426                 tmpFile,
2427                 profileKey,
2428                 ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
2429             // Use larger buffer size to prevent AssertionError: Need: 12272 but only have: 8192 ...
2430             IOUtils.copyStream(input, outputStream, (int) ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE);
2431         } finally {
2432             try {
2433                 Files.delete(tmpFile.toPath());
2434             } catch (IOException e) {
2435                 logger.warn("Failed to delete received profile avatar temp file “{}”, ignoring: {}",
2436                         tmpFile,
2437                         e.getMessage());
2438             }
2439         }
2440     }
2441
2442     private void retrieveAttachment(
2443             final SignalServiceAttachment attachment, final OutputStream outputStream
2444     ) throws IOException {
2445         if (attachment.isPointer()) {
2446             var pointer = attachment.asPointer();
2447             retrieveAttachmentPointer(pointer, outputStream);
2448         } else {
2449             var stream = attachment.asStream();
2450             IOUtils.copyStream(stream.getInputStream(), outputStream);
2451         }
2452     }
2453
2454     private void retrieveAttachmentPointer(
2455             SignalServiceAttachmentPointer pointer, OutputStream outputStream
2456     ) throws IOException {
2457         var tmpFile = IOUtils.createTempFile();
2458         try (var input = retrieveAttachmentAsStream(pointer, tmpFile)) {
2459             IOUtils.copyStream(input, outputStream);
2460         } catch (MissingConfigurationException | InvalidMessageException e) {
2461             throw new IOException(e);
2462         } finally {
2463             try {
2464                 Files.delete(tmpFile.toPath());
2465             } catch (IOException e) {
2466                 logger.warn("Failed to delete received attachment temp file “{}”, ignoring: {}",
2467                         tmpFile,
2468                         e.getMessage());
2469             }
2470         }
2471     }
2472
2473     private InputStream retrieveAttachmentAsStream(
2474             SignalServiceAttachmentPointer pointer, File tmpFile
2475     ) throws IOException, InvalidMessageException, MissingConfigurationException {
2476         return messageReceiver.retrieveAttachment(pointer, tmpFile, ServiceConfig.MAX_ATTACHMENT_SIZE);
2477     }
2478
2479     void sendGroups() throws IOException, UntrustedIdentityException {
2480         var groupsFile = IOUtils.createTempFile();
2481
2482         try {
2483             try (OutputStream fos = new FileOutputStream(groupsFile)) {
2484                 var out = new DeviceGroupsOutputStream(fos);
2485                 for (var record : getGroups()) {
2486                     if (record instanceof GroupInfoV1) {
2487                         var groupInfo = (GroupInfoV1) record;
2488                         out.write(new DeviceGroup(groupInfo.getGroupId().serialize(),
2489                                 Optional.fromNullable(groupInfo.name),
2490                                 groupInfo.getMembers()
2491                                         .stream()
2492                                         .map(this::resolveSignalServiceAddress)
2493                                         .collect(Collectors.toList()),
2494                                 createGroupAvatarAttachment(groupInfo.getGroupId()),
2495                                 groupInfo.isMember(account.getSelfRecipientId()),
2496                                 Optional.of(groupInfo.messageExpirationTime),
2497                                 Optional.fromNullable(groupInfo.color),
2498                                 groupInfo.blocked,
2499                                 Optional.absent(),
2500                                 groupInfo.archived));
2501                     }
2502                 }
2503             }
2504
2505             if (groupsFile.exists() && groupsFile.length() > 0) {
2506                 try (var groupsFileStream = new FileInputStream(groupsFile)) {
2507                     var attachmentStream = SignalServiceAttachment.newStreamBuilder()
2508                             .withStream(groupsFileStream)
2509                             .withContentType("application/octet-stream")
2510                             .withLength(groupsFile.length())
2511                             .build();
2512
2513                     sendSyncMessage(SignalServiceSyncMessage.forGroups(attachmentStream));
2514                 }
2515             }
2516         } finally {
2517             try {
2518                 Files.delete(groupsFile.toPath());
2519             } catch (IOException e) {
2520                 logger.warn("Failed to delete groups temp file “{}”, ignoring: {}", groupsFile, e.getMessage());
2521             }
2522         }
2523     }
2524
2525     public void sendContacts() throws IOException, UntrustedIdentityException {
2526         var contactsFile = IOUtils.createTempFile();
2527
2528         try {
2529             try (OutputStream fos = new FileOutputStream(contactsFile)) {
2530                 var out = new DeviceContactsOutputStream(fos);
2531                 for (var contactPair : account.getContactStore().getContacts()) {
2532                     final var recipientId = contactPair.first();
2533                     final var contact = contactPair.second();
2534                     final var address = resolveSignalServiceAddress(recipientId);
2535
2536                     var currentIdentity = account.getIdentityKeyStore().getIdentity(recipientId);
2537                     VerifiedMessage verifiedMessage = null;
2538                     if (currentIdentity != null) {
2539                         verifiedMessage = new VerifiedMessage(address,
2540                                 currentIdentity.getIdentityKey(),
2541                                 currentIdentity.getTrustLevel().toVerifiedState(),
2542                                 currentIdentity.getDateAdded().getTime());
2543                     }
2544
2545                     var profileKey = account.getProfileStore().getProfileKey(recipientId);
2546                     out.write(new DeviceContact(address,
2547                             Optional.fromNullable(contact.getName()),
2548                             createContactAvatarAttachment(address),
2549                             Optional.fromNullable(contact.getColor()),
2550                             Optional.fromNullable(verifiedMessage),
2551                             Optional.fromNullable(profileKey),
2552                             contact.isBlocked(),
2553                             Optional.of(contact.getMessageExpirationTime()),
2554                             Optional.absent(),
2555                             contact.isArchived()));
2556                 }
2557
2558                 if (account.getProfileKey() != null) {
2559                     // Send our own profile key as well
2560                     out.write(new DeviceContact(account.getSelfAddress(),
2561                             Optional.absent(),
2562                             Optional.absent(),
2563                             Optional.absent(),
2564                             Optional.absent(),
2565                             Optional.of(account.getProfileKey()),
2566                             false,
2567                             Optional.absent(),
2568                             Optional.absent(),
2569                             false));
2570                 }
2571             }
2572
2573             if (contactsFile.exists() && contactsFile.length() > 0) {
2574                 try (var contactsFileStream = new FileInputStream(contactsFile)) {
2575                     var attachmentStream = SignalServiceAttachment.newStreamBuilder()
2576                             .withStream(contactsFileStream)
2577                             .withContentType("application/octet-stream")
2578                             .withLength(contactsFile.length())
2579                             .build();
2580
2581                     sendSyncMessage(SignalServiceSyncMessage.forContacts(new ContactsMessage(attachmentStream, true)));
2582                 }
2583             }
2584         } finally {
2585             try {
2586                 Files.delete(contactsFile.toPath());
2587             } catch (IOException e) {
2588                 logger.warn("Failed to delete contacts temp file “{}”, ignoring: {}", contactsFile, e.getMessage());
2589             }
2590         }
2591     }
2592
2593     void sendBlockedList() throws IOException, UntrustedIdentityException {
2594         var addresses = new ArrayList<SignalServiceAddress>();
2595         for (var record : account.getContactStore().getContacts()) {
2596             if (record.second().isBlocked()) {
2597                 addresses.add(resolveSignalServiceAddress(record.first()));
2598             }
2599         }
2600         var groupIds = new ArrayList<byte[]>();
2601         for (var record : getGroups()) {
2602             if (record.isBlocked()) {
2603                 groupIds.add(record.getGroupId().serialize());
2604             }
2605         }
2606         sendSyncMessage(SignalServiceSyncMessage.forBlocked(new BlockedListMessage(addresses, groupIds)));
2607     }
2608
2609     private void sendVerifiedMessage(
2610             SignalServiceAddress destination, IdentityKey identityKey, TrustLevel trustLevel
2611     ) throws IOException, UntrustedIdentityException {
2612         var verifiedMessage = new VerifiedMessage(destination,
2613                 identityKey,
2614                 trustLevel.toVerifiedState(),
2615                 System.currentTimeMillis());
2616         sendSyncMessage(SignalServiceSyncMessage.forVerified(verifiedMessage));
2617     }
2618
2619     public List<Pair<RecipientId, Contact>> getContacts() {
2620         return account.getContactStore().getContacts();
2621     }
2622
2623     public String getContactOrProfileName(String number) throws InvalidNumberException {
2624         final var recipientId = canonicalizeAndResolveRecipient(number);
2625         final var recipient = account.getRecipientStore().getRecipient(recipientId);
2626         if (recipient == null) {
2627             return null;
2628         }
2629
2630         if (recipient.getContact() != null && !Util.isEmpty(recipient.getContact().getName())) {
2631             return recipient.getContact().getName();
2632         }
2633
2634         if (recipient.getProfile() != null && recipient.getProfile() != null) {
2635             return recipient.getProfile().getDisplayName();
2636         }
2637
2638         return null;
2639     }
2640
2641     public GroupInfo getGroup(GroupId groupId) {
2642         final var group = account.getGroupStore().getGroup(groupId);
2643         if (group instanceof GroupInfoV2 && ((GroupInfoV2) group).getGroup() == null) {
2644             final var groupSecretParams = GroupSecretParams.deriveFromMasterKey(((GroupInfoV2) group).getMasterKey());
2645             ((GroupInfoV2) group).setGroup(groupV2Helper.getDecryptedGroup(groupSecretParams), this::resolveRecipient);
2646             account.getGroupStore().updateGroup(group);
2647         }
2648         return group;
2649     }
2650
2651     public List<IdentityInfo> getIdentities() {
2652         return account.getIdentityKeyStore().getIdentities();
2653     }
2654
2655     public List<IdentityInfo> getIdentities(String number) throws InvalidNumberException {
2656         final var identity = account.getIdentityKeyStore().getIdentity(canonicalizeAndResolveRecipient(number));
2657         return identity == null ? List.of() : List.of(identity);
2658     }
2659
2660     /**
2661      * Trust this the identity with this fingerprint
2662      *
2663      * @param name        username of the identity
2664      * @param fingerprint Fingerprint
2665      */
2666     public boolean trustIdentityVerified(String name, byte[] fingerprint) throws InvalidNumberException {
2667         var recipientId = canonicalizeAndResolveRecipient(name);
2668         return trustIdentity(recipientId,
2669                 identityKey -> Arrays.equals(identityKey.serialize(), fingerprint),
2670                 TrustLevel.TRUSTED_VERIFIED);
2671     }
2672
2673     /**
2674      * Trust this the identity with this safety number
2675      *
2676      * @param name         username of the identity
2677      * @param safetyNumber Safety number
2678      */
2679     public boolean trustIdentityVerifiedSafetyNumber(String name, String safetyNumber) throws InvalidNumberException {
2680         var recipientId = canonicalizeAndResolveRecipient(name);
2681         var address = account.getRecipientStore().resolveServiceAddress(recipientId);
2682         return trustIdentity(recipientId,
2683                 identityKey -> safetyNumber.equals(computeSafetyNumber(address, identityKey)),
2684                 TrustLevel.TRUSTED_VERIFIED);
2685     }
2686
2687     /**
2688      * Trust all keys of this identity without verification
2689      *
2690      * @param name username of the identity
2691      */
2692     public boolean trustIdentityAllKeys(String name) throws InvalidNumberException {
2693         var recipientId = canonicalizeAndResolveRecipient(name);
2694         return trustIdentity(recipientId, identityKey -> true, TrustLevel.TRUSTED_UNVERIFIED);
2695     }
2696
2697     private boolean trustIdentity(
2698             RecipientId recipientId, Function<IdentityKey, Boolean> verifier, TrustLevel trustLevel
2699     ) {
2700         var identity = account.getIdentityKeyStore().getIdentity(recipientId);
2701         if (identity == null) {
2702             return false;
2703         }
2704
2705         if (!verifier.apply(identity.getIdentityKey())) {
2706             return false;
2707         }
2708
2709         account.getIdentityKeyStore().setIdentityTrustLevel(recipientId, identity.getIdentityKey(), trustLevel);
2710         try {
2711             var address = account.getRecipientStore().resolveServiceAddress(recipientId);
2712             sendVerifiedMessage(address, identity.getIdentityKey(), trustLevel);
2713         } catch (IOException | UntrustedIdentityException e) {
2714             logger.warn("Failed to send verification sync message: {}", e.getMessage());
2715         }
2716
2717         return true;
2718     }
2719
2720     public String computeSafetyNumber(
2721             SignalServiceAddress theirAddress, IdentityKey theirIdentityKey
2722     ) {
2723         return Utils.computeSafetyNumber(ServiceConfig.capabilities.isUuid(),
2724                 account.getSelfAddress(),
2725                 getIdentityKeyPair().getPublicKey(),
2726                 theirAddress,
2727                 theirIdentityKey);
2728     }
2729
2730     @Deprecated
2731     public SignalServiceAddress resolveSignalServiceAddress(String identifier) {
2732         var address = Utils.getSignalServiceAddressFromIdentifier(identifier);
2733
2734         return resolveSignalServiceAddress(address);
2735     }
2736
2737     @Deprecated
2738     public SignalServiceAddress resolveSignalServiceAddress(SignalServiceAddress address) {
2739         if (address.matches(account.getSelfAddress())) {
2740             return account.getSelfAddress();
2741         }
2742
2743         return account.getRecipientStore().resolveServiceAddress(address);
2744     }
2745
2746     public SignalServiceAddress resolveSignalServiceAddress(RecipientId recipientId) {
2747         return account.getRecipientStore().resolveServiceAddress(recipientId);
2748     }
2749
2750     public RecipientId canonicalizeAndResolveRecipient(String identifier) throws InvalidNumberException {
2751         var canonicalizedNumber = UuidUtil.isUuid(identifier)
2752                 ? identifier
2753                 : PhoneNumberFormatter.formatNumber(identifier, account.getUsername());
2754
2755         return resolveRecipient(canonicalizedNumber);
2756     }
2757
2758     private RecipientId resolveRecipient(final String identifier) {
2759         var address = Utils.getSignalServiceAddressFromIdentifier(identifier);
2760
2761         return resolveRecipient(address);
2762     }
2763
2764     public RecipientId resolveRecipient(SignalServiceAddress address) {
2765         return account.getRecipientStore().resolveRecipient(address);
2766     }
2767
2768     private RecipientId resolveRecipientTrusted(SignalServiceAddress address) {
2769         return account.getRecipientStore().resolveRecipientTrusted(address);
2770     }
2771
2772     @Override
2773     public void close() throws IOException {
2774         close(true);
2775     }
2776
2777     void close(boolean closeAccount) throws IOException {
2778         executor.shutdown();
2779
2780         if (messagePipe != null) {
2781             messagePipe.shutdown();
2782             messagePipe = null;
2783         }
2784
2785         if (unidentifiedMessagePipe != null) {
2786             unidentifiedMessagePipe.shutdown();
2787             unidentifiedMessagePipe = null;
2788         }
2789
2790         if (closeAccount && account != null) {
2791             account.close();
2792         }
2793         account = null;
2794     }
2795
2796     public interface ReceiveMessageHandler {
2797
2798         void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent decryptedContent, Throwable e);
2799     }
2800 }