nmode's Git Repositories - signal-cli/blob - lib/src/main/java/org/asamk/signal/manager/Manager.java

   1 /*
   2   Copyright (C) 2015-2021 AsamK and contributors
   3
   4   This program is free software: you can redistribute it and/or modify
   5   it under the terms of the GNU General Public License as published by
   6   the Free Software Foundation, either version 3 of the License, or
   7   (at your option) any later version.
   8
   9   This program is distributed in the hope that it will be useful,
  10   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12   GNU General Public License for more details.
  13
  14   You should have received a copy of the GNU General Public License
  15   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17 package org.asamk.signal.manager;
  18
  19 import org.asamk.signal.manager.api.Device;
  20 import org.asamk.signal.manager.api.TypingAction;
  21 import org.asamk.signal.manager.config.ServiceConfig;
  22 import org.asamk.signal.manager.config.ServiceEnvironment;
  23 import org.asamk.signal.manager.config.ServiceEnvironmentConfig;
  24 import org.asamk.signal.manager.groups.GroupId;
  25 import org.asamk.signal.manager.groups.GroupIdV1;
  26 import org.asamk.signal.manager.groups.GroupInviteLinkUrl;
  27 import org.asamk.signal.manager.groups.GroupLinkState;
  28 import org.asamk.signal.manager.groups.GroupNotFoundException;
  29 import org.asamk.signal.manager.groups.GroupPermission;
  30 import org.asamk.signal.manager.groups.GroupUtils;
  31 import org.asamk.signal.manager.groups.LastGroupAdminException;
  32 import org.asamk.signal.manager.groups.NotAGroupMemberException;
  33 import org.asamk.signal.manager.helper.GroupV2Helper;
  34 import org.asamk.signal.manager.helper.PinHelper;
  35 import org.asamk.signal.manager.helper.ProfileHelper;
  36 import org.asamk.signal.manager.helper.SendHelper;
  37 import org.asamk.signal.manager.helper.UnidentifiedAccessHelper;
  38 import org.asamk.signal.manager.jobs.Context;
  39 import org.asamk.signal.manager.jobs.Job;
  40 import org.asamk.signal.manager.jobs.RetrieveStickerPackJob;
  41 import org.asamk.signal.manager.storage.SignalAccount;
  42 import org.asamk.signal.manager.storage.groups.GroupInfo;
  43 import org.asamk.signal.manager.storage.groups.GroupInfoV1;
  44 import org.asamk.signal.manager.storage.groups.GroupInfoV2;
  45 import org.asamk.signal.manager.storage.identities.IdentityInfo;
  46 import org.asamk.signal.manager.storage.messageCache.CachedMessage;
  47 import org.asamk.signal.manager.storage.recipients.Contact;
  48 import org.asamk.signal.manager.storage.recipients.Profile;
  49 import org.asamk.signal.manager.storage.recipients.RecipientId;
  50 import org.asamk.signal.manager.storage.stickers.Sticker;
  51 import org.asamk.signal.manager.storage.stickers.StickerPackId;
  52 import org.asamk.signal.manager.util.AttachmentUtils;
  53 import org.asamk.signal.manager.util.IOUtils;
  54 import org.asamk.signal.manager.util.KeyUtils;
  55 import org.asamk.signal.manager.util.ProfileUtils;
  56 import org.asamk.signal.manager.util.StickerUtils;
  57 import org.asamk.signal.manager.util.Utils;
  58 import org.signal.libsignal.metadata.InvalidMetadataMessageException;
  59 import org.signal.libsignal.metadata.InvalidMetadataVersionException;
  60 import org.signal.libsignal.metadata.ProtocolDuplicateMessageException;
  61 import org.signal.libsignal.metadata.ProtocolInvalidKeyException;
  62 import org.signal.libsignal.metadata.ProtocolInvalidKeyIdException;
  63 import org.signal.libsignal.metadata.ProtocolInvalidMessageException;
  64 import org.signal.libsignal.metadata.ProtocolInvalidVersionException;
  65 import org.signal.libsignal.metadata.ProtocolLegacyMessageException;
  66 import org.signal.libsignal.metadata.ProtocolNoSessionException;
  67 import org.signal.libsignal.metadata.ProtocolUntrustedIdentityException;
  68 import org.signal.libsignal.metadata.SelfSendException;
  69 import org.signal.storageservice.protos.groups.GroupChange;
  70 import org.signal.storageservice.protos.groups.local.DecryptedGroup;
  71 import org.signal.zkgroup.InvalidInputException;
  72 import org.signal.zkgroup.VerificationFailedException;
  73 import org.signal.zkgroup.groups.GroupMasterKey;
  74 import org.signal.zkgroup.groups.GroupSecretParams;
  75 import org.signal.zkgroup.profiles.ProfileKey;
  76 import org.signal.zkgroup.profiles.ProfileKeyCredential;
  77 import org.slf4j.Logger;
  78 import org.slf4j.LoggerFactory;
  79 import org.whispersystems.libsignal.IdentityKey;
  80 import org.whispersystems.libsignal.IdentityKeyPair;
  81 import org.whispersystems.libsignal.InvalidKeyException;
  82 import org.whispersystems.libsignal.InvalidMessageException;
  83 import org.whispersystems.libsignal.ecc.ECPublicKey;
  84 import org.whispersystems.libsignal.state.PreKeyRecord;
  85 import org.whispersystems.libsignal.state.SignedPreKeyRecord;
  86 import org.whispersystems.libsignal.util.Pair;
  87 import org.whispersystems.libsignal.util.guava.Optional;
  88 import org.whispersystems.signalservice.api.InvalidMessageStructureException;
  89 import org.whispersystems.signalservice.api.SignalSessionLock;
  90 import org.whispersystems.signalservice.api.crypto.UntrustedIdentityException;
  91 import org.whispersystems.signalservice.api.groupsv2.GroupLinkNotActiveException;
  92 import org.whispersystems.signalservice.api.groupsv2.GroupsV2AuthorizationString;
  93 import org.whispersystems.signalservice.api.messages.SendMessageResult;
  94 import org.whispersystems.signalservice.api.messages.SignalServiceAttachment;
  95 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentPointer;
  96 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentRemoteId;
  97 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentStream;
  98 import org.whispersystems.signalservice.api.messages.SignalServiceContent;
  99 import org.whispersystems.signalservice.api.messages.SignalServiceDataMessage;
 100 import org.whispersystems.signalservice.api.messages.SignalServiceEnvelope;
 101 import org.whispersystems.signalservice.api.messages.SignalServiceGroup;
 102 import org.whispersystems.signalservice.api.messages.SignalServiceGroupV2;
 103 import org.whispersystems.signalservice.api.messages.SignalServiceReceiptMessage;
 104 import org.whispersystems.signalservice.api.messages.SignalServiceTypingMessage;
 105 import org.whispersystems.signalservice.api.messages.multidevice.BlockedListMessage;
 106 import org.whispersystems.signalservice.api.messages.multidevice.ContactsMessage;
 107 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContact;
 108 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsInputStream;
 109 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsOutputStream;
 110 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroup;
 111 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsInputStream;
 112 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsOutputStream;
 113 import org.whispersystems.signalservice.api.messages.multidevice.RequestMessage;
 114 import org.whispersystems.signalservice.api.messages.multidevice.SignalServiceSyncMessage;
 115 import org.whispersystems.signalservice.api.messages.multidevice.StickerPackOperationMessage;
 116 import org.whispersystems.signalservice.api.messages.multidevice.VerifiedMessage;
 117 import org.whispersystems.signalservice.api.profiles.ProfileAndCredential;
 118 import org.whispersystems.signalservice.api.profiles.SignalServiceProfile;
 119 import org.whispersystems.signalservice.api.push.SignalServiceAddress;
 120 import org.whispersystems.signalservice.api.push.exceptions.ConflictException;
 121 import org.whispersystems.signalservice.api.push.exceptions.MissingConfigurationException;
 122 import org.whispersystems.signalservice.api.util.DeviceNameUtil;
 123 import org.whispersystems.signalservice.api.util.InvalidNumberException;
 124 import org.whispersystems.signalservice.api.util.PhoneNumberFormatter;
 125 import org.whispersystems.signalservice.api.util.UuidUtil;
 126 import org.whispersystems.signalservice.api.websocket.WebSocketUnavailableException;
 127 import org.whispersystems.signalservice.internal.contacts.crypto.Quote;
 128 import org.whispersystems.signalservice.internal.contacts.crypto.UnauthenticatedQuoteException;
 129 import org.whispersystems.signalservice.internal.contacts.crypto.UnauthenticatedResponseException;
 130 import org.whispersystems.signalservice.internal.push.SignalServiceProtos;
 131 import org.whispersystems.signalservice.internal.push.UnsupportedDataMessageException;
 132 import org.whispersystems.signalservice.internal.util.DynamicCredentialsProvider;
 133 import org.whispersystems.signalservice.internal.util.Hex;
 134 import org.whispersystems.signalservice.internal.util.Util;
 135
 136 import java.io.Closeable;
 137 import java.io.File;
 138 import java.io.FileInputStream;
 139 import java.io.FileOutputStream;
 140 import java.io.IOException;
 141 import java.io.InputStream;
 142 import java.io.OutputStream;
 143 import java.net.URI;
 144 import java.net.URISyntaxException;
 145 import java.net.URLEncoder;
 146 import java.nio.charset.StandardCharsets;
 147 import java.nio.file.Files;
 148 import java.security.SignatureException;
 149 import java.util.ArrayList;
 150 import java.util.Arrays;
 151 import java.util.Base64;
 152 import java.util.Collection;
 153 import java.util.Date;
 154 import java.util.HashSet;
 155 import java.util.List;
 156 import java.util.Map;
 157 import java.util.Set;
 158 import java.util.UUID;
 159 import java.util.concurrent.ExecutorService;
 160 import java.util.concurrent.Executors;
 161 import java.util.concurrent.TimeUnit;
 162 import java.util.concurrent.TimeoutException;
 163 import java.util.concurrent.locks.ReentrantLock;
 164 import java.util.function.Function;
 165 import java.util.stream.Collectors;
 166
 167 import static org.asamk.signal.manager.config.ServiceConfig.capabilities;
 168
 169 public class Manager implements Closeable {
 170
 171     private final static Logger logger = LoggerFactory.getLogger(Manager.class);
 172
 173     private final ServiceEnvironmentConfig serviceEnvironmentConfig;
 174     private final SignalDependencies dependencies;
 175
 176     private SignalAccount account;
 177
 178     private final ExecutorService executor = Executors.newCachedThreadPool();
 179
 180     private final ProfileHelper profileHelper;
 181     private final GroupV2Helper groupV2Helper;
 182     private final PinHelper pinHelper;
 183     private final SendHelper sendHelper;
 184
 185     private final AvatarStore avatarStore;
 186     private final AttachmentStore attachmentStore;
 187     private final StickerPackStore stickerPackStore;
 188     private final SignalSessionLock sessionLock = new SignalSessionLock() {
 189         private final ReentrantLock LEGACY_LOCK = new ReentrantLock();
 190
 191         @Override
 192         public Lock acquire() {
 193             LEGACY_LOCK.lock();
 194             return LEGACY_LOCK::unlock;
 195         }
 196     };
 197
 198     Manager(
 199             SignalAccount account,
 200             PathConfig pathConfig,
 201             ServiceEnvironmentConfig serviceEnvironmentConfig,
 202             String userAgent
 203     ) {
 204         this.account = account;
 205         this.serviceEnvironmentConfig = serviceEnvironmentConfig;
 206
 207         final var credentialsProvider = new DynamicCredentialsProvider(account.getUuid(),
 208                 account.getUsername(),
 209                 account.getPassword(),
 210                 account.getDeviceId());
 211         this.dependencies = new SignalDependencies(account.getSelfAddress(),
 212                 serviceEnvironmentConfig,
 213                 userAgent,
 214                 credentialsProvider,
 215                 account.getSignalProtocolStore(),
 216                 executor,
 217                 sessionLock);
 218         this.pinHelper = new PinHelper(dependencies.getKeyBackupService());
 219
 220         final var unidentifiedAccessHelper = new UnidentifiedAccessHelper(account::getProfileKey,
 221                 account.getProfileStore()::getProfileKey,
 222                 this::getRecipientProfile,
 223                 this::getSenderCertificate);
 224         this.profileHelper = new ProfileHelper(account.getProfileStore()::getProfileKey,
 225                 unidentifiedAccessHelper::getAccessFor,
 226                 dependencies::getProfileService,
 227                 dependencies::getMessageReceiver,
 228                 this::resolveSignalServiceAddress);
 229         this.groupV2Helper = new GroupV2Helper(this::getRecipientProfileKeyCredential,
 230                 this::getRecipientProfile,
 231                 account::getSelfRecipientId,
 232                 dependencies.getGroupsV2Operations(),
 233                 dependencies.getGroupsV2Api(),
 234                 this::getGroupAuthForToday,
 235                 this::resolveSignalServiceAddress);
 236         this.avatarStore = new AvatarStore(pathConfig.getAvatarsPath());
 237         this.attachmentStore = new AttachmentStore(pathConfig.getAttachmentsPath());
 238         this.stickerPackStore = new StickerPackStore(pathConfig.getStickerPacksPath());
 239         this.sendHelper = new SendHelper(account,
 240                 dependencies,
 241                 unidentifiedAccessHelper,
 242                 this::resolveSignalServiceAddress,
 243                 this::resolveRecipient,
 244                 this::handleIdentityFailure,
 245                 this::getGroup,
 246                 this::refreshRegisteredUser);
 247     }
 248
 249     public String getUsername() {
 250         return account.getUsername();
 251     }
 252
 253     public SignalServiceAddress getSelfAddress() {
 254         return account.getSelfAddress();
 255     }
 256
 257     public RecipientId getSelfRecipientId() {
 258         return account.getSelfRecipientId();
 259     }
 260
 261     private IdentityKeyPair getIdentityKeyPair() {
 262         return account.getIdentityKeyPair();
 263     }
 264
 265     public int getDeviceId() {
 266         return account.getDeviceId();
 267     }
 268
 269     public static Manager init(
 270             String username, File settingsPath, ServiceEnvironment serviceEnvironment, String userAgent
 271     ) throws IOException, NotRegisteredException {
 272         var pathConfig = PathConfig.createDefault(settingsPath);
 273
 274         if (!SignalAccount.userExists(pathConfig.getDataPath(), username)) {
 275             throw new NotRegisteredException();
 276         }
 277
 278         var account = SignalAccount.load(pathConfig.getDataPath(), username, true);
 279
 280         if (!account.isRegistered()) {
 281             throw new NotRegisteredException();
 282         }
 283
 284         final var serviceEnvironmentConfig = ServiceConfig.getServiceEnvironmentConfig(serviceEnvironment, userAgent);
 285
 286         return new Manager(account, pathConfig, serviceEnvironmentConfig, userAgent);
 287     }
 288
 289     public static List<String> getAllLocalUsernames(File settingsPath) {
 290         var pathConfig = PathConfig.createDefault(settingsPath);
 291         final var dataPath = pathConfig.getDataPath();
 292         final var files = dataPath.listFiles();
 293
 294         if (files == null) {
 295             return List.of();
 296         }
 297
 298         return Arrays.stream(files)
 299                 .filter(File::isFile)
 300                 .map(File::getName)
 301                 .filter(file -> PhoneNumberFormatter.isValidNumber(file, null))
 302                 .collect(Collectors.toList());
 303     }
 304
 305     public void checkAccountState() throws IOException {
 306         if (account.getLastReceiveTimestamp() == 0) {
 307             logger.warn("The Signal protocol expects that incoming messages are regularly received.");
 308         } else {
 309             var diffInMilliseconds = System.currentTimeMillis() - account.getLastReceiveTimestamp();
 310             long days = TimeUnit.DAYS.convert(diffInMilliseconds, TimeUnit.MILLISECONDS);
 311             if (days > 7) {
 312                 logger.warn(
 313                         "Messages have been last received {} days ago. The Signal protocol expects that incoming messages are regularly received.",
 314                         days);
 315             }
 316         }
 317         if (dependencies.getAccountManager().getPreKeysCount() < ServiceConfig.PREKEY_MINIMUM_COUNT) {
 318             refreshPreKeys();
 319         }
 320         if (account.getUuid() == null) {
 321             account.setUuid(dependencies.getAccountManager().getOwnUuid());
 322         }
 323         updateAccountAttributes();
 324     }
 325
 326     /**
 327      * This is used for checking a set of phone numbers for registration on Signal
 328      *
 329      * @param numbers The set of phone number in question
 330      * @return A map of numbers to canonicalized number and uuid. If a number is not registered the uuid is null.
 331      * @throws IOException if its unable to get the contacts to check if they're registered
 332      */
 333     public Map<String, Pair<String, UUID>> areUsersRegistered(Set<String> numbers) throws IOException {
 334         Map<String, String> canonicalizedNumbers = numbers.stream().collect(Collectors.toMap(n -> n, n -> {
 335             try {
 336                 return canonicalizePhoneNumber(n);
 337             } catch (InvalidNumberException e) {
 338                 return "";
 339             }
 340         }));
 341
 342         // Note "contactDetails" has no optionals. It only gives us info on users who are registered
 343         var contactDetails = getRegisteredUsers(canonicalizedNumbers.values()
 344                 .stream()
 345                 .filter(s -> !s.isEmpty())
 346                 .collect(Collectors.toSet()));
 347
 348         // Store numbers as recipients so we have the number/uuid association
 349         contactDetails.forEach((number, uuid) -> resolveRecipientTrusted(new SignalServiceAddress(uuid, number)));
 350
 351         return numbers.stream().collect(Collectors.toMap(n -> n, n -> {
 352             final var number = canonicalizedNumbers.get(n);
 353             final var uuid = contactDetails.get(number);
 354             return new Pair<>(number.isEmpty() ? null : number, uuid);
 355         }));
 356     }
 357
 358     public void updateAccountAttributes() throws IOException {
 359         dependencies.getAccountManager()
 360                 .setAccountAttributes(account.getEncryptedDeviceName(),
 361                         null,
 362                         account.getLocalRegistrationId(),
 363                         true,
 364                         // set legacy pin only if no KBS master key is set
 365                         account.getPinMasterKey() == null ? account.getRegistrationLockPin() : null,
 366                         account.getPinMasterKey() == null ? null : account.getPinMasterKey().deriveRegistrationLock(),
 367                         account.getSelfUnidentifiedAccessKey(),
 368                         account.isUnrestrictedUnidentifiedAccess(),
 369                         capabilities,
 370                         account.isDiscoverableByPhoneNumber());
 371     }
 372
 373     /**
 374      * @param givenName  if null, the previous givenName will be kept
 375      * @param familyName if null, the previous familyName will be kept
 376      * @param about      if null, the previous about text will be kept
 377      * @param aboutEmoji if null, the previous about emoji will be kept
 378      * @param avatar     if avatar is null the image from the local avatar store is used (if present),
 379      */
 380     public void setProfile(
 381             String givenName, final String familyName, String about, String aboutEmoji, Optional<File> avatar
 382     ) throws IOException {
 383         var profile = getRecipientProfile(account.getSelfRecipientId());
 384         var builder = profile == null ? Profile.newBuilder() : Profile.newBuilder(profile);
 385         if (givenName != null) {
 386             builder.withGivenName(givenName);
 387         }
 388         if (familyName != null) {
 389             builder.withFamilyName(familyName);
 390         }
 391         if (about != null) {
 392             builder.withAbout(about);
 393         }
 394         if (aboutEmoji != null) {
 395             builder.withAboutEmoji(aboutEmoji);
 396         }
 397         var newProfile = builder.build();
 398
 399         try (final var streamDetails = avatar == null
 400                 ? avatarStore.retrieveProfileAvatar(getSelfAddress())
 401                 : avatar.isPresent() ? Utils.createStreamDetailsFromFile(avatar.get()) : null) {
 402             dependencies.getAccountManager()
 403                     .setVersionedProfile(account.getUuid(),
 404                             account.getProfileKey(),
 405                             newProfile.getInternalServiceName(),
 406                             newProfile.getAbout() == null ? "" : newProfile.getAbout(),
 407                             newProfile.getAboutEmoji() == null ? "" : newProfile.getAboutEmoji(),
 408                             Optional.absent(),
 409                             streamDetails);
 410         }
 411
 412         if (avatar != null) {
 413             if (avatar.isPresent()) {
 414                 avatarStore.storeProfileAvatar(getSelfAddress(),
 415                         outputStream -> IOUtils.copyFileToStream(avatar.get(), outputStream));
 416             } else {
 417                 avatarStore.deleteProfileAvatar(getSelfAddress());
 418             }
 419         }
 420         account.getProfileStore().storeProfile(account.getSelfRecipientId(), newProfile);
 421
 422         sendHelper.sendSyncMessage(SignalServiceSyncMessage.forFetchLatest(SignalServiceSyncMessage.FetchType.LOCAL_PROFILE));
 423     }
 424
 425     public void unregister() throws IOException {
 426         // When setting an empty GCM id, the Signal-Server also sets the fetchesMessages property to false.
 427         // If this is the master device, other users can't send messages to this number anymore.
 428         // If this is a linked device, other users can still send messages, but this device doesn't receive them anymore.
 429         dependencies.getAccountManager().setGcmId(Optional.absent());
 430
 431         account.setRegistered(false);
 432     }
 433
 434     public void deleteAccount() throws IOException {
 435         dependencies.getAccountManager().deleteAccount();
 436
 437         account.setRegistered(false);
 438     }
 439
 440     public List<Device> getLinkedDevices() throws IOException {
 441         var devices = dependencies.getAccountManager().getDevices();
 442         account.setMultiDevice(devices.size() > 1);
 443         var identityKey = account.getIdentityKeyPair().getPrivateKey();
 444         return devices.stream().map(d -> {
 445             String deviceName = d.getName();
 446             if (deviceName != null) {
 447                 try {
 448                     deviceName = DeviceNameUtil.decryptDeviceName(deviceName, identityKey);
 449                 } catch (IOException e) {
 450                     logger.debug("Failed to decrypt device name, maybe plain text?", e);
 451                 }
 452             }
 453             return new Device(d.getId(), deviceName, d.getCreated(), d.getLastSeen());
 454         }).collect(Collectors.toList());
 455     }
 456
 457     public void removeLinkedDevices(int deviceId) throws IOException {
 458         dependencies.getAccountManager().removeDevice(deviceId);
 459         var devices = dependencies.getAccountManager().getDevices();
 460         account.setMultiDevice(devices.size() > 1);
 461     }
 462
 463     public void addDeviceLink(URI linkUri) throws IOException, InvalidKeyException {
 464         var info = DeviceLinkInfo.parseDeviceLinkUri(linkUri);
 465
 466         addDevice(info.deviceIdentifier, info.deviceKey);
 467     }
 468
 469     private void addDevice(String deviceIdentifier, ECPublicKey deviceKey) throws IOException, InvalidKeyException {
 470         var identityKeyPair = getIdentityKeyPair();
 471         var verificationCode = dependencies.getAccountManager().getNewDeviceVerificationCode();
 472
 473         dependencies.getAccountManager()
 474                 .addDevice(deviceIdentifier,
 475                         deviceKey,
 476                         identityKeyPair,
 477                         Optional.of(account.getProfileKey().serialize()),
 478                         verificationCode);
 479         account.setMultiDevice(true);
 480     }
 481
 482     public void setRegistrationLockPin(Optional<String> pin) throws IOException, UnauthenticatedResponseException {
 483         if (!account.isMasterDevice()) {
 484             throw new RuntimeException("Only master device can set a PIN");
 485         }
 486         if (pin.isPresent()) {
 487             final var masterKey = account.getPinMasterKey() != null
 488                     ? account.getPinMasterKey()
 489                     : KeyUtils.createMasterKey();
 490
 491             pinHelper.setRegistrationLockPin(pin.get(), masterKey);
 492
 493             account.setRegistrationLockPin(pin.get(), masterKey);
 494         } else {
 495             // Remove KBS Pin
 496             pinHelper.removeRegistrationLockPin();
 497
 498             account.setRegistrationLockPin(null, null);
 499         }
 500     }
 501
 502     void refreshPreKeys() throws IOException {
 503         var oneTimePreKeys = generatePreKeys();
 504         final var identityKeyPair = getIdentityKeyPair();
 505         var signedPreKeyRecord = generateSignedPreKey(identityKeyPair);
 506
 507         dependencies.getAccountManager().setPreKeys(identityKeyPair.getPublicKey(), signedPreKeyRecord, oneTimePreKeys);
 508     }
 509
 510     private List<PreKeyRecord> generatePreKeys() {
 511         final var offset = account.getPreKeyIdOffset();
 512
 513         var records = KeyUtils.generatePreKeyRecords(offset, ServiceConfig.PREKEY_BATCH_SIZE);
 514         account.addPreKeys(records);
 515
 516         return records;
 517     }
 518
 519     private SignedPreKeyRecord generateSignedPreKey(IdentityKeyPair identityKeyPair) {
 520         final var signedPreKeyId = account.getNextSignedPreKeyId();
 521
 522         var record = KeyUtils.generateSignedPreKeyRecord(identityKeyPair, signedPreKeyId);
 523         account.addSignedPreKey(record);
 524
 525         return record;
 526     }
 527
 528     public Profile getRecipientProfile(
 529             RecipientId recipientId
 530     ) {
 531         return getRecipientProfile(recipientId, false);
 532     }
 533
 534     private final Set<RecipientId> pendingProfileRequest = new HashSet<>();
 535
 536     Profile getRecipientProfile(
 537             RecipientId recipientId, boolean force
 538     ) {
 539         var profile = account.getProfileStore().getProfile(recipientId);
 540
 541         var now = System.currentTimeMillis();
 542         // Profiles are cached for 24h before retrieving them again, unless forced
 543         if (!force && profile != null && now - profile.getLastUpdateTimestamp() < 24 * 60 * 60 * 1000) {
 544             return profile;
 545         }
 546
 547         synchronized (pendingProfileRequest) {
 548             if (pendingProfileRequest.contains(recipientId)) {
 549                 return profile;
 550             }
 551             pendingProfileRequest.add(recipientId);
 552         }
 553         final SignalServiceProfile encryptedProfile;
 554         try {
 555             encryptedProfile = retrieveEncryptedProfile(recipientId);
 556         } finally {
 557             synchronized (pendingProfileRequest) {
 558                 pendingProfileRequest.remove(recipientId);
 559             }
 560         }
 561         if (encryptedProfile == null) {
 562             return null;
 563         }
 564
 565         profile = decryptProfileIfKeyKnown(recipientId, encryptedProfile);
 566         account.getProfileStore().storeProfile(recipientId, profile);
 567
 568         return profile;
 569     }
 570
 571     private Profile decryptProfileIfKeyKnown(
 572             final RecipientId recipientId, final SignalServiceProfile encryptedProfile
 573     ) {
 574         var profileKey = account.getProfileStore().getProfileKey(recipientId);
 575         if (profileKey == null) {
 576             return new Profile(System.currentTimeMillis(),
 577                     null,
 578                     null,
 579                     null,
 580                     null,
 581                     ProfileUtils.getUnidentifiedAccessMode(encryptedProfile, null),
 582                     ProfileUtils.getCapabilities(encryptedProfile));
 583         }
 584
 585         return decryptProfileAndDownloadAvatar(recipientId, profileKey, encryptedProfile);
 586     }
 587
 588     private SignalServiceProfile retrieveEncryptedProfile(RecipientId recipientId) {
 589         try {
 590             return retrieveProfileAndCredential(recipientId, SignalServiceProfile.RequestType.PROFILE).getProfile();
 591         } catch (IOException e) {
 592             logger.warn("Failed to retrieve profile, ignoring: {}", e.getMessage());
 593             return null;
 594         }
 595     }
 596
 597     private ProfileAndCredential retrieveProfileAndCredential(
 598             final RecipientId recipientId, final SignalServiceProfile.RequestType requestType
 599     ) throws IOException {
 600         final var profileAndCredential = profileHelper.retrieveProfileSync(recipientId, requestType);
 601         final var profile = profileAndCredential.getProfile();
 602
 603         try {
 604             var newIdentity = account.getIdentityKeyStore()
 605                     .saveIdentity(recipientId,
 606                             new IdentityKey(Base64.getDecoder().decode(profile.getIdentityKey())),
 607                             new Date());
 608
 609             if (newIdentity) {
 610                 account.getSessionStore().archiveSessions(recipientId);
 611             }
 612         } catch (InvalidKeyException ignored) {
 613             logger.warn("Got invalid identity key in profile for {}",
 614                     resolveSignalServiceAddress(recipientId).getIdentifier());
 615         }
 616         return profileAndCredential;
 617     }
 618
 619     private ProfileKeyCredential getRecipientProfileKeyCredential(RecipientId recipientId) {
 620         var profileKeyCredential = account.getProfileStore().getProfileKeyCredential(recipientId);
 621         if (profileKeyCredential != null) {
 622             return profileKeyCredential;
 623         }
 624
 625         ProfileAndCredential profileAndCredential;
 626         try {
 627             profileAndCredential = retrieveProfileAndCredential(recipientId,
 628                     SignalServiceProfile.RequestType.PROFILE_AND_CREDENTIAL);
 629         } catch (IOException e) {
 630             logger.warn("Failed to retrieve profile key credential, ignoring: {}", e.getMessage());
 631             return null;
 632         }
 633
 634         profileKeyCredential = profileAndCredential.getProfileKeyCredential().orNull();
 635         account.getProfileStore().storeProfileKeyCredential(recipientId, profileKeyCredential);
 636
 637         var profileKey = account.getProfileStore().getProfileKey(recipientId);
 638         if (profileKey != null) {
 639             final var profile = decryptProfileAndDownloadAvatar(recipientId,
 640                     profileKey,
 641                     profileAndCredential.getProfile());
 642             account.getProfileStore().storeProfile(recipientId, profile);
 643         }
 644
 645         return profileKeyCredential;
 646     }
 647
 648     private Profile decryptProfileAndDownloadAvatar(
 649             final RecipientId recipientId, final ProfileKey profileKey, final SignalServiceProfile encryptedProfile
 650     ) {
 651         if (encryptedProfile.getAvatar() != null) {
 652             downloadProfileAvatar(resolveSignalServiceAddress(recipientId), encryptedProfile.getAvatar(), profileKey);
 653         }
 654
 655         return ProfileUtils.decryptProfile(profileKey, encryptedProfile);
 656     }
 657
 658     private Optional<SignalServiceAttachmentStream> createGroupAvatarAttachment(GroupId groupId) throws IOException {
 659         final var streamDetails = avatarStore.retrieveGroupAvatar(groupId);
 660         if (streamDetails == null) {
 661             return Optional.absent();
 662         }
 663
 664         return Optional.of(AttachmentUtils.createAttachment(streamDetails, Optional.absent()));
 665     }
 666
 667     private Optional<SignalServiceAttachmentStream> createContactAvatarAttachment(SignalServiceAddress address) throws IOException {
 668         final var streamDetails = avatarStore.retrieveContactAvatar(address);
 669         if (streamDetails == null) {
 670             return Optional.absent();
 671         }
 672
 673         return Optional.of(AttachmentUtils.createAttachment(streamDetails, Optional.absent()));
 674     }
 675
 676     private GroupInfo getGroupForUpdating(GroupId groupId) throws GroupNotFoundException, NotAGroupMemberException {
 677         var g = getGroup(groupId);
 678         if (g == null) {
 679             throw new GroupNotFoundException(groupId);
 680         }
 681         if (!g.isMember(account.getSelfRecipientId()) && !g.isPendingMember(account.getSelfRecipientId())) {
 682             throw new NotAGroupMemberException(groupId, g.getTitle());
 683         }
 684         return g;
 685     }
 686
 687     public List<GroupInfo> getGroups() {
 688         return account.getGroupStore().getGroups();
 689     }
 690
 691     public Pair<Long, List<SendMessageResult>> sendGroupMessage(
 692             String messageText, List<String> attachments, GroupId groupId
 693     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 694         final var messageBuilder = createMessageBuilder().withBody(messageText);
 695         if (attachments != null) {
 696             messageBuilder.withAttachments(AttachmentUtils.getSignalServiceAttachments(attachments));
 697         }
 698
 699         return sendHelper.sendAsGroupMessage(messageBuilder, groupId);
 700     }
 701
 702     public Pair<Long, List<SendMessageResult>> sendGroupMessageReaction(
 703             String emoji, boolean remove, String targetAuthor, long targetSentTimestamp, GroupId groupId
 704     ) throws IOException, InvalidNumberException, NotAGroupMemberException, GroupNotFoundException {
 705         var targetAuthorRecipientId = canonicalizeAndResolveRecipient(targetAuthor);
 706         var reaction = new SignalServiceDataMessage.Reaction(emoji,
 707                 remove,
 708                 resolveSignalServiceAddress(targetAuthorRecipientId),
 709                 targetSentTimestamp);
 710         final var messageBuilder = createMessageBuilder().withReaction(reaction);
 711
 712         return sendHelper.sendAsGroupMessage(messageBuilder, groupId);
 713     }
 714
 715     public Pair<Long, List<SendMessageResult>> sendQuitGroupMessage(
 716             GroupId groupId, Set<String> groupAdmins
 717     ) throws GroupNotFoundException, IOException, NotAGroupMemberException, InvalidNumberException, LastGroupAdminException {
 718         var group = getGroupForUpdating(groupId);
 719         if (group instanceof GroupInfoV1) {
 720             return quitGroupV1((GroupInfoV1) group);
 721         }
 722
 723         final var newAdmins = getRecipientIds(groupAdmins);
 724         try {
 725             return quitGroupV2((GroupInfoV2) group, newAdmins);
 726         } catch (ConflictException e) {
 727             // Detected conflicting update, refreshing group and trying again
 728             group = getGroup(groupId, true);
 729             return quitGroupV2((GroupInfoV2) group, newAdmins);
 730         }
 731     }
 732
 733     private Pair<Long, List<SendMessageResult>> quitGroupV1(final GroupInfoV1 groupInfoV1) throws IOException {
 734         var group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.QUIT)
 735                 .withId(groupInfoV1.getGroupId().serialize())
 736                 .build();
 737
 738         var messageBuilder = createMessageBuilder().asGroupMessage(group);
 739         groupInfoV1.removeMember(account.getSelfRecipientId());
 740         account.getGroupStore().updateGroup(groupInfoV1);
 741         return sendHelper.sendGroupMessage(messageBuilder.build(),
 742                 groupInfoV1.getMembersIncludingPendingWithout(account.getSelfRecipientId()));
 743     }
 744
 745     private Pair<Long, List<SendMessageResult>> quitGroupV2(
 746             final GroupInfoV2 groupInfoV2, final Set<RecipientId> newAdmins
 747     ) throws LastGroupAdminException, IOException {
 748         final var currentAdmins = groupInfoV2.getAdminMembers();
 749         newAdmins.removeAll(currentAdmins);
 750         newAdmins.retainAll(groupInfoV2.getMembers());
 751         if (currentAdmins.contains(getSelfRecipientId())
 752                 && currentAdmins.size() == 1
 753                 && groupInfoV2.getMembers().size() > 1
 754                 && newAdmins.size() == 0) {
 755             // Last admin can't leave the group, unless she's also the last member
 756             throw new LastGroupAdminException(groupInfoV2.getGroupId(), groupInfoV2.getTitle());
 757         }
 758         final var groupGroupChangePair = groupV2Helper.leaveGroup(groupInfoV2, newAdmins);
 759         groupInfoV2.setGroup(groupGroupChangePair.first(), this::resolveRecipient);
 760         var messageBuilder = getGroupUpdateMessageBuilder(groupInfoV2, groupGroupChangePair.second().toByteArray());
 761         account.getGroupStore().updateGroup(groupInfoV2);
 762         return sendHelper.sendGroupMessage(messageBuilder.build(),
 763                 groupInfoV2.getMembersIncludingPendingWithout(account.getSelfRecipientId()));
 764     }
 765
 766     public void deleteGroup(GroupId groupId) throws IOException {
 767         account.getGroupStore().deleteGroup(groupId);
 768         avatarStore.deleteGroupAvatar(groupId);
 769     }
 770
 771     public Pair<GroupId, List<SendMessageResult>> createGroup(
 772             String name, List<String> members, File avatarFile
 773     ) throws IOException, AttachmentInvalidException, InvalidNumberException {
 774         return createGroup(name, members == null ? null : getRecipientIds(members), avatarFile);
 775     }
 776
 777     private Pair<GroupId, List<SendMessageResult>> createGroup(
 778             String name, Set<RecipientId> members, File avatarFile
 779     ) throws IOException, AttachmentInvalidException {
 780         final var selfRecipientId = account.getSelfRecipientId();
 781         if (members != null && members.contains(selfRecipientId)) {
 782             members = new HashSet<>(members);
 783             members.remove(selfRecipientId);
 784         }
 785
 786         var gv2Pair = groupV2Helper.createGroup(name == null ? "" : name,
 787                 members == null ? Set.of() : members,
 788                 avatarFile);
 789
 790         SignalServiceDataMessage.Builder messageBuilder;
 791         if (gv2Pair == null) {
 792             // Failed to create v2 group, creating v1 group instead
 793             var gv1 = new GroupInfoV1(GroupIdV1.createRandom());
 794             gv1.addMembers(List.of(selfRecipientId));
 795             final var result = updateGroupV1(gv1, name, members, avatarFile);
 796             return new Pair<>(gv1.getGroupId(), result.second());
 797         }
 798
 799         final var gv2 = gv2Pair.first();
 800         final var decryptedGroup = gv2Pair.second();
 801
 802         gv2.setGroup(decryptedGroup, this::resolveRecipient);
 803         if (avatarFile != null) {
 804             avatarStore.storeGroupAvatar(gv2.getGroupId(),
 805                     outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
 806         }
 807         messageBuilder = getGroupUpdateMessageBuilder(gv2, null);
 808         account.getGroupStore().updateGroup(gv2);
 809
 810         final var result = sendHelper.sendGroupMessage(messageBuilder.build(),
 811                 gv2.getMembersIncludingPendingWithout(selfRecipientId));
 812         return new Pair<>(gv2.getGroupId(), result.second());
 813     }
 814
 815     public Pair<Long, List<SendMessageResult>> updateGroup(
 816             GroupId groupId,
 817             String name,
 818             String description,
 819             List<String> members,
 820             List<String> removeMembers,
 821             List<String> admins,
 822             List<String> removeAdmins,
 823             boolean resetGroupLink,
 824             GroupLinkState groupLinkState,
 825             GroupPermission addMemberPermission,
 826             GroupPermission editDetailsPermission,
 827             File avatarFile,
 828             Integer expirationTimer,
 829             Boolean isAnnouncementGroup
 830     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, InvalidNumberException, NotAGroupMemberException {
 831         return updateGroup(groupId,
 832                 name,
 833                 description,
 834                 members == null ? null : getRecipientIds(members),
 835                 removeMembers == null ? null : getRecipientIds(removeMembers),
 836                 admins == null ? null : getRecipientIds(admins),
 837                 removeAdmins == null ? null : getRecipientIds(removeAdmins),
 838                 resetGroupLink,
 839                 groupLinkState,
 840                 addMemberPermission,
 841                 editDetailsPermission,
 842                 avatarFile,
 843                 expirationTimer,
 844                 isAnnouncementGroup);
 845     }
 846
 847     private Pair<Long, List<SendMessageResult>> updateGroup(
 848             final GroupId groupId,
 849             final String name,
 850             final String description,
 851             final Set<RecipientId> members,
 852             final Set<RecipientId> removeMembers,
 853             final Set<RecipientId> admins,
 854             final Set<RecipientId> removeAdmins,
 855             final boolean resetGroupLink,
 856             final GroupLinkState groupLinkState,
 857             final GroupPermission addMemberPermission,
 858             final GroupPermission editDetailsPermission,
 859             final File avatarFile,
 860             final Integer expirationTimer,
 861             final Boolean isAnnouncementGroup
 862     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 863         var group = getGroupForUpdating(groupId);
 864
 865         if (group instanceof GroupInfoV2) {
 866             try {
 867                 return updateGroupV2((GroupInfoV2) group,
 868                         name,
 869                         description,
 870                         members,
 871                         removeMembers,
 872                         admins,
 873                         removeAdmins,
 874                         resetGroupLink,
 875                         groupLinkState,
 876                         addMemberPermission,
 877                         editDetailsPermission,
 878                         avatarFile,
 879                         expirationTimer,
 880                         isAnnouncementGroup);
 881             } catch (ConflictException e) {
 882                 // Detected conflicting update, refreshing group and trying again
 883                 group = getGroup(groupId, true);
 884                 return updateGroupV2((GroupInfoV2) group,
 885                         name,
 886                         description,
 887                         members,
 888                         removeMembers,
 889                         admins,
 890                         removeAdmins,
 891                         resetGroupLink,
 892                         groupLinkState,
 893                         addMemberPermission,
 894                         editDetailsPermission,
 895                         avatarFile,
 896                         expirationTimer,
 897                         isAnnouncementGroup);
 898             }
 899         }
 900
 901         final var gv1 = (GroupInfoV1) group;
 902         final var result = updateGroupV1(gv1, name, members, avatarFile);
 903         if (expirationTimer != null) {
 904             setExpirationTimer(gv1, expirationTimer);
 905         }
 906         return result;
 907     }
 908
 909     private Pair<Long, List<SendMessageResult>> updateGroupV1(
 910             final GroupInfoV1 gv1, final String name, final Set<RecipientId> members, final File avatarFile
 911     ) throws IOException, AttachmentInvalidException {
 912         updateGroupV1Details(gv1, name, members, avatarFile);
 913         var messageBuilder = getGroupUpdateMessageBuilder(gv1);
 914
 915         account.getGroupStore().updateGroup(gv1);
 916
 917         return sendHelper.sendGroupMessage(messageBuilder.build(),
 918                 gv1.getMembersIncludingPendingWithout(account.getSelfRecipientId()));
 919     }
 920
 921     private void updateGroupV1Details(
 922             final GroupInfoV1 g, final String name, final Collection<RecipientId> members, final File avatarFile
 923     ) throws IOException {
 924         if (name != null) {
 925             g.name = name;
 926         }
 927
 928         if (members != null) {
 929             final var newMemberAddresses = members.stream()
 930                     .filter(member -> !g.isMember(member))
 931                     .map(this::resolveSignalServiceAddress)
 932                     .collect(Collectors.toList());
 933             final var newE164Members = new HashSet<String>();
 934             for (var member : newMemberAddresses) {
 935                 if (!member.getNumber().isPresent()) {
 936                     continue;
 937                 }
 938                 newE164Members.add(member.getNumber().get());
 939             }
 940
 941             final var registeredUsers = getRegisteredUsers(newE164Members);
 942             if (registeredUsers.size() != newE164Members.size()) {
 943                 // Some of the new members are not registered on Signal
 944                 newE164Members.removeAll(registeredUsers.keySet());
 945                 throw new IOException("Failed to add members "
 946                         + String.join(", ", newE164Members)
 947                         + " to group: Not registered on Signal");
 948             }
 949
 950             g.addMembers(members);
 951         }
 952
 953         if (avatarFile != null) {
 954             avatarStore.storeGroupAvatar(g.getGroupId(),
 955                     outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
 956         }
 957     }
 958
 959     private Pair<Long, List<SendMessageResult>> updateGroupV2(
 960             final GroupInfoV2 group,
 961             final String name,
 962             final String description,
 963             final Set<RecipientId> members,
 964             final Set<RecipientId> removeMembers,
 965             final Set<RecipientId> admins,
 966             final Set<RecipientId> removeAdmins,
 967             final boolean resetGroupLink,
 968             final GroupLinkState groupLinkState,
 969             final GroupPermission addMemberPermission,
 970             final GroupPermission editDetailsPermission,
 971             final File avatarFile,
 972             final Integer expirationTimer,
 973             final Boolean isAnnouncementGroup
 974     ) throws IOException {
 975         Pair<Long, List<SendMessageResult>> result = null;
 976         if (group.isPendingMember(account.getSelfRecipientId())) {
 977             var groupGroupChangePair = groupV2Helper.acceptInvite(group);
 978             result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
 979         }
 980
 981         if (members != null) {
 982             final var newMembers = new HashSet<>(members);
 983             newMembers.removeAll(group.getMembers());
 984             if (newMembers.size() > 0) {
 985                 var groupGroupChangePair = groupV2Helper.addMembers(group, newMembers);
 986                 result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
 987             }
 988         }
 989
 990         if (removeMembers != null) {
 991             var existingRemoveMembers = new HashSet<>(removeMembers);
 992             existingRemoveMembers.retainAll(group.getMembers());
 993             existingRemoveMembers.remove(getSelfRecipientId());// self can be removed with sendQuitGroupMessage
 994             if (existingRemoveMembers.size() > 0) {
 995                 var groupGroupChangePair = groupV2Helper.removeMembers(group, existingRemoveMembers);
 996                 result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
 997             }
 998
 999             var pendingRemoveMembers = new HashSet<>(removeMembers);
1000             pendingRemoveMembers.retainAll(group.getPendingMembers());
1001             if (pendingRemoveMembers.size() > 0) {
1002                 var groupGroupChangePair = groupV2Helper.revokeInvitedMembers(group, pendingRemoveMembers);
1003                 result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1004             }
1005         }
1006
1007         if (admins != null) {
1008             final var newAdmins = new HashSet<>(admins);
1009             newAdmins.retainAll(group.getMembers());
1010             newAdmins.removeAll(group.getAdminMembers());
1011             if (newAdmins.size() > 0) {
1012                 for (var admin : newAdmins) {
1013                     var groupGroupChangePair = groupV2Helper.setMemberAdmin(group, admin, true);
1014                     result = sendUpdateGroupV2Message(group,
1015                             groupGroupChangePair.first(),
1016                             groupGroupChangePair.second());
1017                 }
1018             }
1019         }
1020
1021         if (removeAdmins != null) {
1022             final var existingRemoveAdmins = new HashSet<>(removeAdmins);
1023             existingRemoveAdmins.retainAll(group.getAdminMembers());
1024             if (existingRemoveAdmins.size() > 0) {
1025                 for (var admin : existingRemoveAdmins) {
1026                     var groupGroupChangePair = groupV2Helper.setMemberAdmin(group, admin, false);
1027                     result = sendUpdateGroupV2Message(group,
1028                             groupGroupChangePair.first(),
1029                             groupGroupChangePair.second());
1030                 }
1031             }
1032         }
1033
1034         if (resetGroupLink) {
1035             var groupGroupChangePair = groupV2Helper.resetGroupLinkPassword(group);
1036             result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1037         }
1038
1039         if (groupLinkState != null) {
1040             var groupGroupChangePair = groupV2Helper.setGroupLinkState(group, groupLinkState);
1041             result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1042         }
1043
1044         if (addMemberPermission != null) {
1045             var groupGroupChangePair = groupV2Helper.setAddMemberPermission(group, addMemberPermission);
1046             result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1047         }
1048
1049         if (editDetailsPermission != null) {
1050             var groupGroupChangePair = groupV2Helper.setEditDetailsPermission(group, editDetailsPermission);
1051             result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1052         }
1053
1054         if (expirationTimer != null) {
1055             var groupGroupChangePair = groupV2Helper.setMessageExpirationTimer(group, expirationTimer);
1056             result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1057         }
1058
1059         if (isAnnouncementGroup != null) {
1060             var groupGroupChangePair = groupV2Helper.setIsAnnouncementGroup(group, isAnnouncementGroup);
1061             result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1062         }
1063
1064         if (name != null || description != null || avatarFile != null) {
1065             var groupGroupChangePair = groupV2Helper.updateGroup(group, name, description, avatarFile);
1066             if (avatarFile != null) {
1067                 avatarStore.storeGroupAvatar(group.getGroupId(),
1068                         outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
1069             }
1070             result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1071         }
1072
1073         return result;
1074     }
1075
1076     public Pair<GroupId, List<SendMessageResult>> joinGroup(
1077             GroupInviteLinkUrl inviteLinkUrl
1078     ) throws IOException, GroupLinkNotActiveException {
1079         final var groupJoinInfo = groupV2Helper.getDecryptedGroupJoinInfo(inviteLinkUrl.getGroupMasterKey(),
1080                 inviteLinkUrl.getPassword());
1081         final var groupChange = groupV2Helper.joinGroup(inviteLinkUrl.getGroupMasterKey(),
1082                 inviteLinkUrl.getPassword(),
1083                 groupJoinInfo);
1084         final var group = getOrMigrateGroup(inviteLinkUrl.getGroupMasterKey(),
1085                 groupJoinInfo.getRevision() + 1,
1086                 groupChange.toByteArray());
1087
1088         if (group.getGroup() == null) {
1089             // Only requested member, can't send update to group members
1090             return new Pair<>(group.getGroupId(), List.of());
1091         }
1092
1093         final var result = sendUpdateGroupV2Message(group, group.getGroup(), groupChange);
1094
1095         return new Pair<>(group.getGroupId(), result.second());
1096     }
1097
1098     private Pair<Long, List<SendMessageResult>> sendUpdateGroupV2Message(
1099             GroupInfoV2 group, DecryptedGroup newDecryptedGroup, GroupChange groupChange
1100     ) throws IOException {
1101         final var selfRecipientId = account.getSelfRecipientId();
1102         final var members = group.getMembersIncludingPendingWithout(selfRecipientId);
1103         group.setGroup(newDecryptedGroup, this::resolveRecipient);
1104         members.addAll(group.getMembersIncludingPendingWithout(selfRecipientId));
1105
1106         final var messageBuilder = getGroupUpdateMessageBuilder(group, groupChange.toByteArray());
1107         account.getGroupStore().updateGroup(group);
1108         return sendHelper.sendGroupMessage(messageBuilder.build(), members);
1109     }
1110
1111     private static int currentTimeDays() {
1112         return (int) TimeUnit.MILLISECONDS.toDays(System.currentTimeMillis());
1113     }
1114
1115     private GroupsV2AuthorizationString getGroupAuthForToday(
1116             final GroupSecretParams groupSecretParams
1117     ) throws IOException {
1118         final var today = currentTimeDays();
1119         // Returns credentials for the next 7 days
1120         final var credentials = dependencies.getGroupsV2Api().getCredentials(today);
1121         // TODO cache credentials until they expire
1122         var authCredentialResponse = credentials.get(today);
1123         try {
1124             return dependencies.getGroupsV2Api()
1125                     .getGroupsV2AuthorizationString(account.getUuid(),
1126                             today,
1127                             groupSecretParams,
1128                             authCredentialResponse);
1129         } catch (VerificationFailedException e) {
1130             throw new IOException(e);
1131         }
1132     }
1133
1134     Pair<Long, List<SendMessageResult>> sendGroupInfoMessage(
1135             GroupIdV1 groupId, SignalServiceAddress recipient
1136     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, AttachmentInvalidException {
1137         GroupInfoV1 g;
1138         var group = getGroupForUpdating(groupId);
1139         if (!(group instanceof GroupInfoV1)) {
1140             throw new IOException("Received an invalid group request for a v2 group!");
1141         }
1142         g = (GroupInfoV1) group;
1143
1144         final var recipientId = resolveRecipient(recipient);
1145         if (!g.isMember(recipientId)) {
1146             throw new NotAGroupMemberException(groupId, g.name);
1147         }
1148
1149         var messageBuilder = getGroupUpdateMessageBuilder(g);
1150
1151         // Send group message only to the recipient who requested it
1152         return sendHelper.sendGroupMessage(messageBuilder.build(), Set.of(recipientId));
1153     }
1154
1155     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfoV1 g) throws AttachmentInvalidException {
1156         var group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.UPDATE)
1157                 .withId(g.getGroupId().serialize())
1158                 .withName(g.name)
1159                 .withMembers(g.getMembers()
1160                         .stream()
1161                         .map(this::resolveSignalServiceAddress)
1162                         .collect(Collectors.toList()));
1163
1164         try {
1165             final var attachment = createGroupAvatarAttachment(g.getGroupId());
1166             if (attachment.isPresent()) {
1167                 group.withAvatar(attachment.get());
1168             }
1169         } catch (IOException e) {
1170             throw new AttachmentInvalidException(g.getGroupId().toBase64(), e);
1171         }
1172
1173         return createMessageBuilder().asGroupMessage(group.build()).withExpiration(g.getMessageExpirationTime());
1174     }
1175
1176     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfoV2 g, byte[] signedGroupChange) {
1177         var group = SignalServiceGroupV2.newBuilder(g.getMasterKey())
1178                 .withRevision(g.getGroup().getRevision())
1179                 .withSignedGroupChange(signedGroupChange);
1180         return createMessageBuilder().asGroupMessage(group.build()).withExpiration(g.getMessageExpirationTime());
1181     }
1182
1183     Pair<Long, List<SendMessageResult>> sendGroupInfoRequest(
1184             GroupIdV1 groupId, SignalServiceAddress recipient
1185     ) throws IOException {
1186         var group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.REQUEST_INFO).withId(groupId.serialize());
1187
1188         var messageBuilder = createMessageBuilder().asGroupMessage(group.build());
1189
1190         // Send group info request message to the recipient who sent us a message with this groupId
1191         return sendHelper.sendGroupMessage(messageBuilder.build(), Set.of(resolveRecipient(recipient)));
1192     }
1193
1194     void sendReceipt(
1195             SignalServiceAddress remoteAddress, long messageId
1196     ) throws IOException, UntrustedIdentityException {
1197         var receiptMessage = new SignalServiceReceiptMessage(SignalServiceReceiptMessage.Type.DELIVERY,
1198                 List.of(messageId),
1199                 System.currentTimeMillis());
1200
1201         sendHelper.sendReceiptMessage(receiptMessage, resolveRecipient(remoteAddress));
1202     }
1203
1204     public Pair<Long, List<SendMessageResult>> sendMessage(
1205             String messageText, List<String> attachments, List<String> recipients
1206     ) throws IOException, AttachmentInvalidException, InvalidNumberException {
1207         final var messageBuilder = createMessageBuilder().withBody(messageText);
1208         if (attachments != null) {
1209             var attachmentStreams = AttachmentUtils.getSignalServiceAttachments(attachments);
1210
1211             // Upload attachments here, so we only upload once even for multiple recipients
1212             var messageSender = dependencies.getMessageSender();
1213             var attachmentPointers = new ArrayList<SignalServiceAttachment>(attachmentStreams.size());
1214             for (var attachment : attachmentStreams) {
1215                 if (attachment.isStream()) {
1216                     attachmentPointers.add(messageSender.uploadAttachment(attachment.asStream()));
1217                 } else if (attachment.isPointer()) {
1218                     attachmentPointers.add(attachment.asPointer());
1219                 }
1220             }
1221
1222             messageBuilder.withAttachments(attachmentPointers);
1223         }
1224         return sendHelper.sendMessage(messageBuilder, getRecipientIds(recipients));
1225     }
1226
1227     public Pair<Long, SendMessageResult> sendSelfMessage(
1228             String messageText, List<String> attachments
1229     ) throws IOException, AttachmentInvalidException {
1230         final var messageBuilder = createMessageBuilder().withBody(messageText);
1231         if (attachments != null) {
1232             messageBuilder.withAttachments(AttachmentUtils.getSignalServiceAttachments(attachments));
1233         }
1234         return sendHelper.sendSelfMessage(messageBuilder);
1235     }
1236
1237     public Pair<Long, List<SendMessageResult>> sendRemoteDeleteMessage(
1238             long targetSentTimestamp, List<String> recipients
1239     ) throws IOException, InvalidNumberException {
1240         var delete = new SignalServiceDataMessage.RemoteDelete(targetSentTimestamp);
1241         final var messageBuilder = createMessageBuilder().withRemoteDelete(delete);
1242         return sendHelper.sendMessage(messageBuilder, getRecipientIds(recipients));
1243     }
1244
1245     public Pair<Long, List<SendMessageResult>> sendGroupRemoteDeleteMessage(
1246             long targetSentTimestamp, GroupId groupId
1247     ) throws IOException, NotAGroupMemberException, GroupNotFoundException {
1248         var delete = new SignalServiceDataMessage.RemoteDelete(targetSentTimestamp);
1249         final var messageBuilder = createMessageBuilder().withRemoteDelete(delete);
1250         return sendHelper.sendAsGroupMessage(messageBuilder, groupId);
1251     }
1252
1253     public Pair<Long, List<SendMessageResult>> sendMessageReaction(
1254             String emoji, boolean remove, String targetAuthor, long targetSentTimestamp, List<String> recipients
1255     ) throws IOException, InvalidNumberException {
1256         var targetAuthorRecipientId = canonicalizeAndResolveRecipient(targetAuthor);
1257         var reaction = new SignalServiceDataMessage.Reaction(emoji,
1258                 remove,
1259                 resolveSignalServiceAddress(targetAuthorRecipientId),
1260                 targetSentTimestamp);
1261         final var messageBuilder = createMessageBuilder().withReaction(reaction);
1262         return sendHelper.sendMessage(messageBuilder, getRecipientIds(recipients));
1263     }
1264
1265     public Pair<Long, List<SendMessageResult>> sendEndSessionMessage(List<String> recipients) throws IOException, InvalidNumberException {
1266         var messageBuilder = createMessageBuilder().asEndSessionMessage();
1267
1268         final var recipientIds = getRecipientIds(recipients);
1269         try {
1270             return sendHelper.sendMessage(messageBuilder, recipientIds);
1271         } finally {
1272             for (var recipientId : recipientIds) {
1273                 handleEndSession(recipientId);
1274             }
1275         }
1276     }
1277
1278     void renewSession(RecipientId recipientId) throws IOException {
1279         account.getSessionStore().archiveSessions(recipientId);
1280         if (!recipientId.equals(getSelfRecipientId())) {
1281             sendHelper.sendNullMessage(recipientId);
1282         }
1283     }
1284
1285     public void setContactName(String number, String name) throws InvalidNumberException, NotMasterDeviceException {
1286         if (!account.isMasterDevice()) {
1287             throw new NotMasterDeviceException();
1288         }
1289         final var recipientId = canonicalizeAndResolveRecipient(number);
1290         var contact = account.getContactStore().getContact(recipientId);
1291         final var builder = contact == null ? Contact.newBuilder() : Contact.newBuilder(contact);
1292         account.getContactStore().storeContact(recipientId, builder.withName(name).build());
1293     }
1294
1295     public void setContactBlocked(
1296             String number, boolean blocked
1297     ) throws InvalidNumberException, NotMasterDeviceException {
1298         if (!account.isMasterDevice()) {
1299             throw new NotMasterDeviceException();
1300         }
1301         setContactBlocked(canonicalizeAndResolveRecipient(number), blocked);
1302     }
1303
1304     private void setContactBlocked(RecipientId recipientId, boolean blocked) {
1305         var contact = account.getContactStore().getContact(recipientId);
1306         final var builder = contact == null ? Contact.newBuilder() : Contact.newBuilder(contact);
1307         account.getContactStore().storeContact(recipientId, builder.withBlocked(blocked).build());
1308     }
1309
1310     public void setGroupBlocked(final GroupId groupId, final boolean blocked) throws GroupNotFoundException {
1311         var group = getGroup(groupId);
1312         if (group == null) {
1313             throw new GroupNotFoundException(groupId);
1314         }
1315
1316         group.setBlocked(blocked);
1317         account.getGroupStore().updateGroup(group);
1318     }
1319
1320     private void setExpirationTimer(RecipientId recipientId, int messageExpirationTimer) {
1321         var contact = account.getContactStore().getContact(recipientId);
1322         if (contact != null && contact.getMessageExpirationTime() == messageExpirationTimer) {
1323             return;
1324         }
1325         final var builder = contact == null ? Contact.newBuilder() : Contact.newBuilder(contact);
1326         account.getContactStore()
1327                 .storeContact(recipientId, builder.withMessageExpirationTime(messageExpirationTimer).build());
1328     }
1329
1330     private void sendExpirationTimerUpdate(RecipientId recipientId) throws IOException {
1331         final var messageBuilder = createMessageBuilder().asExpirationUpdate();
1332         sendHelper.sendMessage(messageBuilder, Set.of(recipientId));
1333     }
1334
1335     /**
1336      * Change the expiration timer for a contact
1337      */
1338     public void setExpirationTimer(
1339             String number, int messageExpirationTimer
1340     ) throws IOException, InvalidNumberException {
1341         var recipientId = canonicalizeAndResolveRecipient(number);
1342         setExpirationTimer(recipientId, messageExpirationTimer);
1343         sendExpirationTimerUpdate(recipientId);
1344     }
1345
1346     /**
1347      * Change the expiration timer for a group
1348      */
1349     private void setExpirationTimer(
1350             GroupInfoV1 groupInfoV1, int messageExpirationTimer
1351     ) throws NotAGroupMemberException, GroupNotFoundException, IOException {
1352         groupInfoV1.messageExpirationTime = messageExpirationTimer;
1353         account.getGroupStore().updateGroup(groupInfoV1);
1354         sendExpirationTimerUpdate(groupInfoV1.getGroupId());
1355     }
1356
1357     private void sendExpirationTimerUpdate(GroupIdV1 groupId) throws IOException, NotAGroupMemberException, GroupNotFoundException {
1358         final var messageBuilder = createMessageBuilder().asExpirationUpdate();
1359         sendHelper.sendAsGroupMessage(messageBuilder, groupId);
1360     }
1361
1362     /**
1363      * Upload the sticker pack from path.
1364      *
1365      * @param path Path can be a path to a manifest.json file or to a zip file that contains a manifest.json file
1366      * @return if successful, returns the URL to install the sticker pack in the signal app
1367      */
1368     public String uploadStickerPack(File path) throws IOException, StickerPackInvalidException {
1369         var manifest = StickerUtils.getSignalServiceStickerManifestUpload(path);
1370
1371         var messageSender = dependencies.getMessageSender();
1372
1373         var packKey = KeyUtils.createStickerUploadKey();
1374         var packIdString = messageSender.uploadStickerManifest(manifest, packKey);
1375         var packId = StickerPackId.deserialize(Hex.fromStringCondensed(packIdString));
1376
1377         var sticker = new Sticker(packId, packKey);
1378         account.getStickerStore().updateSticker(sticker);
1379
1380         try {
1381             return new URI("https",
1382                     "signal.art",
1383                     "/addstickers/",
1384                     "pack_id="
1385                             + URLEncoder.encode(Hex.toStringCondensed(packId.serialize()), StandardCharsets.UTF_8)
1386                             + "&pack_key="
1387                             + URLEncoder.encode(Hex.toStringCondensed(packKey), StandardCharsets.UTF_8)).toString();
1388         } catch (URISyntaxException e) {
1389             throw new AssertionError(e);
1390         }
1391     }
1392
1393     public void requestAllSyncData() throws IOException {
1394         requestSyncGroups();
1395         requestSyncContacts();
1396         requestSyncBlocked();
1397         requestSyncConfiguration();
1398         requestSyncKeys();
1399     }
1400
1401     private void requestSyncGroups() throws IOException {
1402         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1403                 .setType(SignalServiceProtos.SyncMessage.Request.Type.GROUPS)
1404                 .build();
1405         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1406         sendHelper.sendSyncMessage(message);
1407     }
1408
1409     private void requestSyncContacts() throws IOException {
1410         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1411                 .setType(SignalServiceProtos.SyncMessage.Request.Type.CONTACTS)
1412                 .build();
1413         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1414         sendHelper.sendSyncMessage(message);
1415     }
1416
1417     private void requestSyncBlocked() throws IOException {
1418         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1419                 .setType(SignalServiceProtos.SyncMessage.Request.Type.BLOCKED)
1420                 .build();
1421         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1422         sendHelper.sendSyncMessage(message);
1423     }
1424
1425     private void requestSyncConfiguration() throws IOException {
1426         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1427                 .setType(SignalServiceProtos.SyncMessage.Request.Type.CONFIGURATION)
1428                 .build();
1429         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1430         sendHelper.sendSyncMessage(message);
1431     }
1432
1433     private void requestSyncKeys() throws IOException {
1434         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1435                 .setType(SignalServiceProtos.SyncMessage.Request.Type.KEYS)
1436                 .build();
1437         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1438         sendHelper.sendSyncMessage(message);
1439     }
1440
1441     private byte[] getSenderCertificate() {
1442         byte[] certificate;
1443         try {
1444             if (account.isPhoneNumberShared()) {
1445                 certificate = dependencies.getAccountManager().getSenderCertificate();
1446             } else {
1447                 certificate = dependencies.getAccountManager().getSenderCertificateForPhoneNumberPrivacy();
1448             }
1449         } catch (IOException e) {
1450             logger.warn("Failed to get sender certificate, ignoring: {}", e.getMessage());
1451             return null;
1452         }
1453         // TODO cache for a day
1454         return certificate;
1455     }
1456
1457     private Set<RecipientId> getRecipientIds(Collection<String> numbers) throws InvalidNumberException {
1458         final var signalServiceAddresses = new HashSet<SignalServiceAddress>(numbers.size());
1459         final var addressesMissingUuid = new HashSet<SignalServiceAddress>();
1460
1461         for (var number : numbers) {
1462             final var resolvedAddress = resolveSignalServiceAddress(canonicalizeAndResolveRecipient(number));
1463             if (resolvedAddress.getUuid().isPresent()) {
1464                 signalServiceAddresses.add(resolvedAddress);
1465             } else {
1466                 addressesMissingUuid.add(resolvedAddress);
1467             }
1468         }
1469
1470         final var numbersMissingUuid = addressesMissingUuid.stream()
1471                 .map(a -> a.getNumber().get())
1472                 .collect(Collectors.toSet());
1473         Map<String, UUID> registeredUsers;
1474         try {
1475             registeredUsers = getRegisteredUsers(numbersMissingUuid);
1476         } catch (IOException e) {
1477             logger.warn("Failed to resolve uuids from server, ignoring: {}", e.getMessage());
1478             registeredUsers = Map.of();
1479         }
1480
1481         for (var address : addressesMissingUuid) {
1482             final var number = address.getNumber().get();
1483             if (registeredUsers.containsKey(number)) {
1484                 final var newAddress = resolveSignalServiceAddress(resolveRecipientTrusted(new SignalServiceAddress(
1485                         registeredUsers.get(number),
1486                         number)));
1487                 signalServiceAddresses.add(newAddress);
1488             } else {
1489                 signalServiceAddresses.add(address);
1490             }
1491         }
1492
1493         return signalServiceAddresses.stream().map(this::resolveRecipient).collect(Collectors.toSet());
1494     }
1495
1496     private RecipientId refreshRegisteredUser(RecipientId recipientId) throws IOException {
1497         final var address = resolveSignalServiceAddress(recipientId);
1498         if (!address.getNumber().isPresent()) {
1499             return recipientId;
1500         }
1501         final var number = address.getNumber().get();
1502         final var uuidMap = getRegisteredUsers(Set.of(number));
1503         return resolveRecipientTrusted(new SignalServiceAddress(uuidMap.getOrDefault(number, null), number));
1504     }
1505
1506     private Map<String, UUID> getRegisteredUsers(final Set<String> numbers) throws IOException {
1507         try {
1508             return dependencies.getAccountManager()
1509                     .getRegisteredUsers(ServiceConfig.getIasKeyStore(),
1510                             numbers,
1511                             serviceEnvironmentConfig.getCdsMrenclave());
1512         } catch (Quote.InvalidQuoteFormatException | UnauthenticatedQuoteException | SignatureException | UnauthenticatedResponseException | InvalidKeyException e) {
1513             throw new IOException(e);
1514         }
1515     }
1516
1517     public void sendTypingMessage(
1518             TypingAction action, Set<String> recipients
1519     ) throws IOException, UntrustedIdentityException, InvalidNumberException {
1520         final var timestamp = System.currentTimeMillis();
1521         var message = new SignalServiceTypingMessage(action.toSignalService(), timestamp, Optional.absent());
1522         sendHelper.sendTypingMessage(message, getRecipientIds(recipients));
1523     }
1524
1525     public void sendGroupTypingMessage(
1526             TypingAction action, GroupId groupId
1527     ) throws IOException, NotAGroupMemberException, GroupNotFoundException {
1528         final var timestamp = System.currentTimeMillis();
1529         final var message = new SignalServiceTypingMessage(action.toSignalService(),
1530                 timestamp,
1531                 Optional.of(groupId.serialize()));
1532         sendHelper.sendGroupTypingMessage(message, groupId);
1533     }
1534
1535     private SignalServiceDataMessage.Builder createMessageBuilder() {
1536         final var timestamp = System.currentTimeMillis();
1537
1538         var messageBuilder = SignalServiceDataMessage.newBuilder();
1539         messageBuilder.withTimestamp(timestamp);
1540         return messageBuilder;
1541     }
1542
1543     private SignalServiceContent decryptMessage(SignalServiceEnvelope envelope) throws InvalidMetadataMessageException, ProtocolInvalidMessageException, ProtocolDuplicateMessageException, ProtocolLegacyMessageException, ProtocolInvalidKeyIdException, InvalidMetadataVersionException, ProtocolInvalidVersionException, ProtocolNoSessionException, ProtocolInvalidKeyException, SelfSendException, UnsupportedDataMessageException, ProtocolUntrustedIdentityException, InvalidMessageStructureException {
1544         return dependencies.getCipher().decrypt(envelope);
1545     }
1546
1547     private void handleEndSession(RecipientId recipientId) {
1548         account.getSessionStore().deleteAllSessions(recipientId);
1549     }
1550
1551     private List<HandleAction> handleSignalServiceDataMessage(
1552             SignalServiceDataMessage message,
1553             boolean isSync,
1554             SignalServiceAddress source,
1555             SignalServiceAddress destination,
1556             boolean ignoreAttachments
1557     ) {
1558         var actions = new ArrayList<HandleAction>();
1559         if (message.getGroupContext().isPresent()) {
1560             if (message.getGroupContext().get().getGroupV1().isPresent()) {
1561                 var groupInfo = message.getGroupContext().get().getGroupV1().get();
1562                 var groupId = GroupId.v1(groupInfo.getGroupId());
1563                 var group = getGroup(groupId);
1564                 if (group == null || group instanceof GroupInfoV1) {
1565                     var groupV1 = (GroupInfoV1) group;
1566                     switch (groupInfo.getType()) {
1567                         case UPDATE: {
1568                             if (groupV1 == null) {
1569                                 groupV1 = new GroupInfoV1(groupId);
1570                             }
1571
1572                             if (groupInfo.getAvatar().isPresent()) {
1573                                 var avatar = groupInfo.getAvatar().get();
1574                                 downloadGroupAvatar(avatar, groupV1.getGroupId());
1575                             }
1576
1577                             if (groupInfo.getName().isPresent()) {
1578                                 groupV1.name = groupInfo.getName().get();
1579                             }
1580
1581                             if (groupInfo.getMembers().isPresent()) {
1582                                 groupV1.addMembers(groupInfo.getMembers()
1583                                         .get()
1584                                         .stream()
1585                                         .map(this::resolveRecipient)
1586                                         .collect(Collectors.toSet()));
1587                             }
1588
1589                             account.getGroupStore().updateGroup(groupV1);
1590                             break;
1591                         }
1592                         case DELIVER:
1593                             if (groupV1 == null && !isSync) {
1594                                 actions.add(new SendGroupInfoRequestAction(source, groupId));
1595                             }
1596                             break;
1597                         case QUIT: {
1598                             if (groupV1 != null) {
1599                                 groupV1.removeMember(resolveRecipient(source));
1600                                 account.getGroupStore().updateGroup(groupV1);
1601                             }
1602                             break;
1603                         }
1604                         case REQUEST_INFO:
1605                             if (groupV1 != null && !isSync) {
1606                                 actions.add(new SendGroupInfoAction(source, groupV1.getGroupId()));
1607                             }
1608                             break;
1609                     }
1610                 } else {
1611                     // Received a group v1 message for a v2 group
1612                 }
1613             }
1614             if (message.getGroupContext().get().getGroupV2().isPresent()) {
1615                 final var groupContext = message.getGroupContext().get().getGroupV2().get();
1616                 final var groupMasterKey = groupContext.getMasterKey();
1617
1618                 getOrMigrateGroup(groupMasterKey,
1619                         groupContext.getRevision(),
1620                         groupContext.hasSignedGroupChange() ? groupContext.getSignedGroupChange() : null);
1621             }
1622         }
1623
1624         final var conversationPartnerAddress = isSync ? destination : source;
1625         if (conversationPartnerAddress != null && message.isEndSession()) {
1626             handleEndSession(resolveRecipient(conversationPartnerAddress));
1627         }
1628         if (message.isExpirationUpdate() || message.getBody().isPresent()) {
1629             if (message.getGroupContext().isPresent()) {
1630                 if (message.getGroupContext().get().getGroupV1().isPresent()) {
1631                     var groupInfo = message.getGroupContext().get().getGroupV1().get();
1632                     var group = account.getGroupStore().getOrCreateGroupV1(GroupId.v1(groupInfo.getGroupId()));
1633                     if (group != null) {
1634                         if (group.messageExpirationTime != message.getExpiresInSeconds()) {
1635                             group.messageExpirationTime = message.getExpiresInSeconds();
1636                             account.getGroupStore().updateGroup(group);
1637                         }
1638                     }
1639                 } else if (message.getGroupContext().get().getGroupV2().isPresent()) {
1640                     // disappearing message timer already stored in the DecryptedGroup
1641                 }
1642             } else if (conversationPartnerAddress != null) {
1643                 setExpirationTimer(resolveRecipient(conversationPartnerAddress), message.getExpiresInSeconds());
1644             }
1645         }
1646         if (!ignoreAttachments) {
1647             if (message.getAttachments().isPresent()) {
1648                 for (var attachment : message.getAttachments().get()) {
1649                     downloadAttachment(attachment);
1650                 }
1651             }
1652             if (message.getSharedContacts().isPresent()) {
1653                 for (var contact : message.getSharedContacts().get()) {
1654                     if (contact.getAvatar().isPresent()) {
1655                         downloadAttachment(contact.getAvatar().get().getAttachment());
1656                     }
1657                 }
1658             }
1659         }
1660         if (message.getProfileKey().isPresent() && message.getProfileKey().get().length == 32) {
1661             final ProfileKey profileKey;
1662             try {
1663                 profileKey = new ProfileKey(message.getProfileKey().get());
1664             } catch (InvalidInputException e) {
1665                 throw new AssertionError(e);
1666             }
1667             if (source.matches(account.getSelfAddress())) {
1668                 this.account.setProfileKey(profileKey);
1669             }
1670             this.account.getProfileStore().storeProfileKey(resolveRecipient(source), profileKey);
1671         }
1672         if (message.getPreviews().isPresent()) {
1673             final var previews = message.getPreviews().get();
1674             for (var preview : previews) {
1675                 if (preview.getImage().isPresent()) {
1676                     downloadAttachment(preview.getImage().get());
1677                 }
1678             }
1679         }
1680         if (message.getQuote().isPresent()) {
1681             final var quote = message.getQuote().get();
1682
1683             for (var quotedAttachment : quote.getAttachments()) {
1684                 final var thumbnail = quotedAttachment.getThumbnail();
1685                 if (thumbnail != null) {
1686                     downloadAttachment(thumbnail);
1687                 }
1688             }
1689         }
1690         if (message.getSticker().isPresent()) {
1691             final var messageSticker = message.getSticker().get();
1692             final var stickerPackId = StickerPackId.deserialize(messageSticker.getPackId());
1693             var sticker = account.getStickerStore().getSticker(stickerPackId);
1694             if (sticker == null) {
1695                 sticker = new Sticker(stickerPackId, messageSticker.getPackKey());
1696                 account.getStickerStore().updateSticker(sticker);
1697             }
1698             enqueueJob(new RetrieveStickerPackJob(stickerPackId, messageSticker.getPackKey()));
1699         }
1700         return actions;
1701     }
1702
1703     private GroupInfoV2 getOrMigrateGroup(
1704             final GroupMasterKey groupMasterKey, final int revision, final byte[] signedGroupChange
1705     ) {
1706         final var groupSecretParams = GroupSecretParams.deriveFromMasterKey(groupMasterKey);
1707
1708         var groupId = GroupUtils.getGroupIdV2(groupSecretParams);
1709         var groupInfo = getGroup(groupId);
1710         final GroupInfoV2 groupInfoV2;
1711         if (groupInfo instanceof GroupInfoV1) {
1712             // Received a v2 group message for a v1 group, we need to locally migrate the group
1713             account.getGroupStore().deleteGroupV1(((GroupInfoV1) groupInfo).getGroupId());
1714             groupInfoV2 = new GroupInfoV2(groupId, groupMasterKey);
1715             logger.info("Locally migrated group {} to group v2, id: {}",
1716                     groupInfo.getGroupId().toBase64(),
1717                     groupInfoV2.getGroupId().toBase64());
1718         } else if (groupInfo instanceof GroupInfoV2) {
1719             groupInfoV2 = (GroupInfoV2) groupInfo;
1720         } else {
1721             groupInfoV2 = new GroupInfoV2(groupId, groupMasterKey);
1722         }
1723
1724         if (groupInfoV2.getGroup() == null || groupInfoV2.getGroup().getRevision() < revision) {
1725             DecryptedGroup group = null;
1726             if (signedGroupChange != null
1727                     && groupInfoV2.getGroup() != null
1728                     && groupInfoV2.getGroup().getRevision() + 1 == revision) {
1729                 group = groupV2Helper.getUpdatedDecryptedGroup(groupInfoV2.getGroup(),
1730                         signedGroupChange,
1731                         groupMasterKey);
1732             }
1733             if (group == null) {
1734                 group = groupV2Helper.getDecryptedGroup(groupSecretParams);
1735             }
1736             if (group != null) {
1737                 storeProfileKeysFromMembers(group);
1738                 final var avatar = group.getAvatar();
1739                 if (avatar != null && !avatar.isEmpty()) {
1740                     downloadGroupAvatar(groupId, groupSecretParams, avatar);
1741                 }
1742             }
1743             groupInfoV2.setGroup(group, this::resolveRecipient);
1744             account.getGroupStore().updateGroup(groupInfoV2);
1745         }
1746
1747         return groupInfoV2;
1748     }
1749
1750     private void storeProfileKeysFromMembers(final DecryptedGroup group) {
1751         for (var member : group.getMembersList()) {
1752             final var uuid = UuidUtil.parseOrThrow(member.getUuid().toByteArray());
1753             final var recipientId = account.getRecipientStore().resolveRecipient(uuid);
1754             try {
1755                 account.getProfileStore()
1756                         .storeProfileKey(recipientId, new ProfileKey(member.getProfileKey().toByteArray()));
1757             } catch (InvalidInputException ignored) {
1758             }
1759         }
1760     }
1761
1762     private void retryFailedReceivedMessages(ReceiveMessageHandler handler, boolean ignoreAttachments) {
1763         Set<HandleAction> queuedActions = new HashSet<>();
1764         for (var cachedMessage : account.getMessageCache().getCachedMessages()) {
1765             var actions = retryFailedReceivedMessage(handler, ignoreAttachments, cachedMessage);
1766             if (actions != null) {
1767                 queuedActions.addAll(actions);
1768             }
1769         }
1770         for (var action : queuedActions) {
1771             try {
1772                 action.execute(this);
1773             } catch (Throwable e) {
1774                 if (e instanceof AssertionError && e.getCause() instanceof InterruptedException) {
1775                     Thread.currentThread().interrupt();
1776                 }
1777                 logger.warn("Message action failed.", e);
1778             }
1779         }
1780     }
1781
1782     private List<HandleAction> retryFailedReceivedMessage(
1783             final ReceiveMessageHandler handler, final boolean ignoreAttachments, final CachedMessage cachedMessage
1784     ) {
1785         var envelope = cachedMessage.loadEnvelope();
1786         if (envelope == null) {
1787             return null;
1788         }
1789         SignalServiceContent content = null;
1790         List<HandleAction> actions = null;
1791         if (!envelope.isReceipt()) {
1792             try {
1793                 content = decryptMessage(envelope);
1794             } catch (ProtocolUntrustedIdentityException e) {
1795                 if (!envelope.hasSource()) {
1796                     final var identifier = e.getSender();
1797                     final var recipientId = resolveRecipient(identifier);
1798                     try {
1799                         account.getMessageCache().replaceSender(cachedMessage, recipientId);
1800                     } catch (IOException ioException) {
1801                         logger.warn("Failed to move cached message to recipient folder: {}", ioException.getMessage());
1802                     }
1803                 }
1804                 return null;
1805             } catch (Exception er) {
1806                 // All other errors are not recoverable, so delete the cached message
1807                 cachedMessage.delete();
1808                 return null;
1809             }
1810             actions = handleMessage(envelope, content, ignoreAttachments);
1811         }
1812         handler.handleMessage(envelope, content, null);
1813         cachedMessage.delete();
1814         return actions;
1815     }
1816
1817     public void receiveMessages(
1818             long timeout,
1819             TimeUnit unit,
1820             boolean returnOnTimeout,
1821             boolean ignoreAttachments,
1822             ReceiveMessageHandler handler
1823     ) throws IOException, InterruptedException {
1824         retryFailedReceivedMessages(handler, ignoreAttachments);
1825
1826         Set<HandleAction> queuedActions = null;
1827
1828         final var signalWebSocket = dependencies.getSignalWebSocket();
1829         signalWebSocket.connect();
1830
1831         var hasCaughtUpWithOldMessages = false;
1832
1833         while (!Thread.interrupted()) {
1834             SignalServiceEnvelope envelope;
1835             SignalServiceContent content = null;
1836             Exception exception = null;
1837             final CachedMessage[] cachedMessage = {null};
1838             account.setLastReceiveTimestamp(System.currentTimeMillis());
1839             logger.debug("Checking for new message from server");
1840             try {
1841                 var result = signalWebSocket.readOrEmpty(unit.toMillis(timeout), envelope1 -> {
1842                     final var recipientId = envelope1.hasSource()
1843                             ? resolveRecipient(envelope1.getSourceIdentifier())
1844                             : null;
1845                     // store message on disk, before acknowledging receipt to the server
1846                     cachedMessage[0] = account.getMessageCache().cacheMessage(envelope1, recipientId);
1847                 });
1848                 logger.debug("New message received from server");
1849                 if (result.isPresent()) {
1850                     envelope = result.get();
1851                 } else {
1852                     // Received indicator that server queue is empty
1853                     hasCaughtUpWithOldMessages = true;
1854
1855                     if (queuedActions != null) {
1856                         for (var action : queuedActions) {
1857                             try {
1858                                 action.execute(this);
1859                             } catch (Throwable e) {
1860                                 if (e instanceof AssertionError && e.getCause() instanceof InterruptedException) {
1861                                     Thread.currentThread().interrupt();
1862                                 }
1863                                 logger.warn("Message action failed.", e);
1864                             }
1865                         }
1866                         queuedActions.clear();
1867                         queuedActions = null;
1868                     }
1869
1870                     // Continue to wait another timeout for new messages
1871                     continue;
1872                 }
1873             } catch (AssertionError e) {
1874                 if (e.getCause() instanceof InterruptedException) {
1875                     throw (InterruptedException) e.getCause();
1876                 } else {
1877                     throw e;
1878                 }
1879             } catch (WebSocketUnavailableException e) {
1880                 logger.debug("Pipe unexpectedly unavailable, connecting");
1881                 signalWebSocket.connect();
1882                 continue;
1883             } catch (TimeoutException e) {
1884                 if (returnOnTimeout) return;
1885                 continue;
1886             }
1887
1888             if (envelope.hasSource()) {
1889                 // Store uuid if we don't have it already
1890                 // address/uuid in envelope is sent by server
1891                 resolveRecipientTrusted(envelope.getSourceAddress());
1892             }
1893             if (!envelope.isReceipt()) {
1894                 try {
1895                     content = decryptMessage(envelope);
1896                 } catch (Exception e) {
1897                     exception = e;
1898                 }
1899                 if (!envelope.hasSource() && content != null) {
1900                     // Store uuid if we don't have it already
1901                     // address/uuid is validated by unidentified sender certificate
1902                     resolveRecipientTrusted(content.getSender());
1903                 }
1904                 var actions = handleMessage(envelope, content, ignoreAttachments);
1905                 if (exception instanceof ProtocolInvalidMessageException) {
1906                     final var sender = resolveRecipient(((ProtocolInvalidMessageException) exception).getSender());
1907                     logger.debug("Received invalid message, queuing renew session action.");
1908                     actions.add(new RenewSessionAction(sender));
1909                 }
1910                 if (hasCaughtUpWithOldMessages) {
1911                     for (var action : actions) {
1912                         try {
1913                             action.execute(this);
1914                         } catch (Throwable e) {
1915                             if (e instanceof AssertionError && e.getCause() instanceof InterruptedException) {
1916                                 Thread.currentThread().interrupt();
1917                             }
1918                             logger.warn("Message action failed.", e);
1919                         }
1920                     }
1921                 } else {
1922                     if (queuedActions == null) {
1923                         queuedActions = new HashSet<>();
1924                     }
1925                     queuedActions.addAll(actions);
1926                 }
1927             }
1928             final var notAllowedToSendToGroup = isNotAllowedToSendToGroup(envelope, content);
1929             if (isMessageBlocked(envelope, content)) {
1930                 logger.info("Ignoring a message from blocked user/group: {}", envelope.getTimestamp());
1931             } else if (notAllowedToSendToGroup) {
1932                 logger.info("Ignoring a group message from an unauthorized sender (no member or admin): {} {}",
1933                         (envelope.hasSource() ? envelope.getSourceAddress() : content.getSender()).getIdentifier(),
1934                         envelope.getTimestamp());
1935             } else {
1936                 handler.handleMessage(envelope, content, exception);
1937             }
1938             if (cachedMessage[0] != null) {
1939                 if (exception instanceof ProtocolUntrustedIdentityException) {
1940                     final var identifier = ((ProtocolUntrustedIdentityException) exception).getSender();
1941                     final var recipientId = resolveRecipient(identifier);
1942                     queuedActions.add(new RetrieveProfileAction(recipientId));
1943                     if (!envelope.hasSource()) {
1944                         try {
1945                             cachedMessage[0] = account.getMessageCache().replaceSender(cachedMessage[0], recipientId);
1946                         } catch (IOException ioException) {
1947                             logger.warn("Failed to move cached message to recipient folder: {}",
1948                                     ioException.getMessage());
1949                         }
1950                     }
1951                 } else {
1952                     cachedMessage[0].delete();
1953                 }
1954             }
1955         }
1956     }
1957
1958     private boolean isMessageBlocked(
1959             SignalServiceEnvelope envelope, SignalServiceContent content
1960     ) {
1961         SignalServiceAddress source;
1962         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1963             source = envelope.getSourceAddress();
1964         } else if (content != null) {
1965             source = content.getSender();
1966         } else {
1967             return false;
1968         }
1969         final var recipientId = resolveRecipient(source);
1970         if (isContactBlocked(recipientId)) {
1971             return true;
1972         }
1973
1974         if (content != null && content.getDataMessage().isPresent()) {
1975             var message = content.getDataMessage().get();
1976             if (message.getGroupContext().isPresent()) {
1977                 var groupId = GroupUtils.getGroupId(message.getGroupContext().get());
1978                 var group = getGroup(groupId);
1979                 if (group != null && group.isBlocked()) {
1980                     return true;
1981                 }
1982             }
1983         }
1984         return false;
1985     }
1986
1987     public boolean isContactBlocked(final String identifier) throws InvalidNumberException {
1988         final var recipientId = canonicalizeAndResolveRecipient(identifier);
1989         return isContactBlocked(recipientId);
1990     }
1991
1992     private boolean isContactBlocked(final RecipientId recipientId) {
1993         var sourceContact = account.getContactStore().getContact(recipientId);
1994         return sourceContact != null && sourceContact.isBlocked();
1995     }
1996
1997     private boolean isNotAllowedToSendToGroup(
1998             SignalServiceEnvelope envelope, SignalServiceContent content
1999     ) {
2000         SignalServiceAddress source;
2001         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
2002             source = envelope.getSourceAddress();
2003         } else if (content != null) {
2004             source = content.getSender();
2005         } else {
2006             return false;
2007         }
2008
2009         if (content == null || !content.getDataMessage().isPresent()) {
2010             return false;
2011         }
2012
2013         var message = content.getDataMessage().get();
2014         if (!message.getGroupContext().isPresent()) {
2015             return false;
2016         }
2017
2018         if (message.getGroupContext().get().getGroupV1().isPresent()) {
2019             var groupInfo = message.getGroupContext().get().getGroupV1().get();
2020             if (groupInfo.getType() == SignalServiceGroup.Type.QUIT) {
2021                 return false;
2022             }
2023         }
2024
2025         var groupId = GroupUtils.getGroupId(message.getGroupContext().get());
2026         var group = getGroup(groupId);
2027         if (group == null) {
2028             return false;
2029         }
2030
2031         final var recipientId = resolveRecipient(source);
2032         return !group.isMember(recipientId) || (
2033                 group.isAnnouncementGroup() && !group.isAdmin(recipientId)
2034         );
2035     }
2036
2037     private List<HandleAction> handleMessage(
2038             SignalServiceEnvelope envelope, SignalServiceContent content, boolean ignoreAttachments
2039     ) {
2040         var actions = new ArrayList<HandleAction>();
2041         if (content != null) {
2042             final SignalServiceAddress sender;
2043             if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
2044                 sender = envelope.getSourceAddress();
2045             } else {
2046                 sender = content.getSender();
2047             }
2048
2049             if (content.getDataMessage().isPresent()) {
2050                 var message = content.getDataMessage().get();
2051
2052                 if (content.isNeedsReceipt()) {
2053                     actions.add(new SendReceiptAction(sender, message.getTimestamp()));
2054                 }
2055
2056                 actions.addAll(handleSignalServiceDataMessage(message,
2057                         false,
2058                         sender,
2059                         account.getSelfAddress(),
2060                         ignoreAttachments));
2061             }
2062             if (content.getSyncMessage().isPresent()) {
2063                 account.setMultiDevice(true);
2064                 var syncMessage = content.getSyncMessage().get();
2065                 if (syncMessage.getSent().isPresent()) {
2066                     var message = syncMessage.getSent().get();
2067                     final var destination = message.getDestination().orNull();
2068                     actions.addAll(handleSignalServiceDataMessage(message.getMessage(),
2069                             true,
2070                             sender,
2071                             destination,
2072                             ignoreAttachments));
2073                 }
2074                 if (syncMessage.getRequest().isPresent() && account.isMasterDevice()) {
2075                     var rm = syncMessage.getRequest().get();
2076                     if (rm.isContactsRequest()) {
2077                         actions.add(SendSyncContactsAction.create());
2078                     }
2079                     if (rm.isGroupsRequest()) {
2080                         actions.add(SendSyncGroupsAction.create());
2081                     }
2082                     if (rm.isBlockedListRequest()) {
2083                         actions.add(SendSyncBlockedListAction.create());
2084                     }
2085                     // TODO Handle rm.isConfigurationRequest(); rm.isKeysRequest();
2086                 }
2087                 if (syncMessage.getGroups().isPresent()) {
2088                     File tmpFile = null;
2089                     try {
2090                         tmpFile = IOUtils.createTempFile();
2091                         final var groupsMessage = syncMessage.getGroups().get();
2092                         try (var attachmentAsStream = retrieveAttachmentAsStream(groupsMessage.asPointer(), tmpFile)) {
2093                             var s = new DeviceGroupsInputStream(attachmentAsStream);
2094                             DeviceGroup g;
2095                             while (true) {
2096                                 try {
2097                                     g = s.read();
2098                                 } catch (IOException e) {
2099                                     logger.warn("Sync groups contained invalid group, ignoring: {}", e.getMessage());
2100                                     continue;
2101                                 }
2102                                 if (g == null) {
2103                                     break;
2104                                 }
2105                                 var syncGroup = account.getGroupStore().getOrCreateGroupV1(GroupId.v1(g.getId()));
2106                                 if (syncGroup != null) {
2107                                     if (g.getName().isPresent()) {
2108                                         syncGroup.name = g.getName().get();
2109                                     }
2110                                     syncGroup.addMembers(g.getMembers()
2111                                             .stream()
2112                                             .map(this::resolveRecipient)
2113                                             .collect(Collectors.toSet()));
2114                                     if (!g.isActive()) {
2115                                         syncGroup.removeMember(account.getSelfRecipientId());
2116                                     } else {
2117                                         // Add ourself to the member set as it's marked as active
2118                                         syncGroup.addMembers(List.of(account.getSelfRecipientId()));
2119                                     }
2120                                     syncGroup.blocked = g.isBlocked();
2121                                     if (g.getColor().isPresent()) {
2122                                         syncGroup.color = g.getColor().get();
2123                                     }
2124
2125                                     if (g.getAvatar().isPresent()) {
2126                                         downloadGroupAvatar(g.getAvatar().get(), syncGroup.getGroupId());
2127                                     }
2128                                     syncGroup.archived = g.isArchived();
2129                                     account.getGroupStore().updateGroup(syncGroup);
2130                                 }
2131                             }
2132                         }
2133                     } catch (Exception e) {
2134                         logger.warn("Failed to handle received sync groups “{}”, ignoring: {}",
2135                                 tmpFile,
2136                                 e.getMessage());
2137                     } finally {
2138                         if (tmpFile != null) {
2139                             try {
2140                                 Files.delete(tmpFile.toPath());
2141                             } catch (IOException e) {
2142                                 logger.warn("Failed to delete received groups temp file “{}”, ignoring: {}",
2143                                         tmpFile,
2144                                         e.getMessage());
2145                             }
2146                         }
2147                     }
2148                 }
2149                 if (syncMessage.getBlockedList().isPresent()) {
2150                     final var blockedListMessage = syncMessage.getBlockedList().get();
2151                     for (var address : blockedListMessage.getAddresses()) {
2152                         setContactBlocked(resolveRecipient(address), true);
2153                     }
2154                     for (var groupId : blockedListMessage.getGroupIds()
2155                             .stream()
2156                             .map(GroupId::unknownVersion)
2157                             .collect(Collectors.toSet())) {
2158                         try {
2159                             setGroupBlocked(groupId, true);
2160                         } catch (GroupNotFoundException e) {
2161                             logger.warn("BlockedListMessage contained groupID that was not found in GroupStore: {}",
2162                                     groupId.toBase64());
2163                         }
2164                     }
2165                 }
2166                 if (syncMessage.getContacts().isPresent()) {
2167                     File tmpFile = null;
2168                     try {
2169                         tmpFile = IOUtils.createTempFile();
2170                         final var contactsMessage = syncMessage.getContacts().get();
2171                         try (var attachmentAsStream = retrieveAttachmentAsStream(contactsMessage.getContactsStream()
2172                                 .asPointer(), tmpFile)) {
2173                             var s = new DeviceContactsInputStream(attachmentAsStream);
2174                             DeviceContact c;
2175                             while (true) {
2176                                 try {
2177                                     c = s.read();
2178                                 } catch (IOException e) {
2179                                     logger.warn("Sync contacts contained invalid contact, ignoring: {}",
2180                                             e.getMessage());
2181                                     continue;
2182                                 }
2183                                 if (c == null) {
2184                                     break;
2185                                 }
2186                                 if (c.getAddress().matches(account.getSelfAddress()) && c.getProfileKey().isPresent()) {
2187                                     account.setProfileKey(c.getProfileKey().get());
2188                                 }
2189                                 final var recipientId = resolveRecipientTrusted(c.getAddress());
2190                                 var contact = account.getContactStore().getContact(recipientId);
2191                                 final var builder = contact == null
2192                                         ? Contact.newBuilder()
2193                                         : Contact.newBuilder(contact);
2194                                 if (c.getName().isPresent()) {
2195                                     builder.withName(c.getName().get());
2196                                 }
2197                                 if (c.getColor().isPresent()) {
2198                                     builder.withColor(c.getColor().get());
2199                                 }
2200                                 if (c.getProfileKey().isPresent()) {
2201                                     account.getProfileStore().storeProfileKey(recipientId, c.getProfileKey().get());
2202                                 }
2203                                 if (c.getVerified().isPresent()) {
2204                                     final var verifiedMessage = c.getVerified().get();
2205                                     account.getIdentityKeyStore()
2206                                             .setIdentityTrustLevel(resolveRecipientTrusted(verifiedMessage.getDestination()),
2207                                                     verifiedMessage.getIdentityKey(),
2208                                                     TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
2209                                 }
2210                                 if (c.getExpirationTimer().isPresent()) {
2211                                     builder.withMessageExpirationTime(c.getExpirationTimer().get());
2212                                 }
2213                                 builder.withBlocked(c.isBlocked());
2214                                 builder.withArchived(c.isArchived());
2215                                 account.getContactStore().storeContact(recipientId, builder.build());
2216
2217                                 if (c.getAvatar().isPresent()) {
2218                                     downloadContactAvatar(c.getAvatar().get(), c.getAddress());
2219                                 }
2220                             }
2221                         }
2222                     } catch (Exception e) {
2223                         logger.warn("Failed to handle received sync contacts “{}”, ignoring: {}",
2224                                 tmpFile,
2225                                 e.getMessage());
2226                     } finally {
2227                         if (tmpFile != null) {
2228                             try {
2229                                 Files.delete(tmpFile.toPath());
2230                             } catch (IOException e) {
2231                                 logger.warn("Failed to delete received contacts temp file “{}”, ignoring: {}",
2232                                         tmpFile,
2233                                         e.getMessage());
2234                             }
2235                         }
2236                     }
2237                 }
2238                 if (syncMessage.getVerified().isPresent()) {
2239                     final var verifiedMessage = syncMessage.getVerified().get();
2240                     account.getIdentityKeyStore()
2241                             .setIdentityTrustLevel(resolveRecipientTrusted(verifiedMessage.getDestination()),
2242                                     verifiedMessage.getIdentityKey(),
2243                                     TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
2244                 }
2245                 if (syncMessage.getStickerPackOperations().isPresent()) {
2246                     final var stickerPackOperationMessages = syncMessage.getStickerPackOperations().get();
2247                     for (var m : stickerPackOperationMessages) {
2248                         if (!m.getPackId().isPresent()) {
2249                             continue;
2250                         }
2251                         final var stickerPackId = StickerPackId.deserialize(m.getPackId().get());
2252                         final var installed = !m.getType().isPresent()
2253                                 || m.getType().get() == StickerPackOperationMessage.Type.INSTALL;
2254
2255                         var sticker = account.getStickerStore().getSticker(stickerPackId);
2256                         if (m.getPackKey().isPresent()) {
2257                             if (sticker == null) {
2258                                 sticker = new Sticker(stickerPackId, m.getPackKey().get());
2259                             }
2260                             if (installed) {
2261                                 enqueueJob(new RetrieveStickerPackJob(stickerPackId, m.getPackKey().get()));
2262                             }
2263                         }
2264
2265                         if (sticker != null) {
2266                             sticker.setInstalled(installed);
2267                             account.getStickerStore().updateSticker(sticker);
2268                         }
2269                     }
2270                 }
2271                 if (syncMessage.getFetchType().isPresent()) {
2272                     switch (syncMessage.getFetchType().get()) {
2273                         case LOCAL_PROFILE:
2274                             getRecipientProfile(account.getSelfRecipientId(), true);
2275                         case STORAGE_MANIFEST:
2276                             // TODO
2277                     }
2278                 }
2279                 if (syncMessage.getKeys().isPresent()) {
2280                     final var keysMessage = syncMessage.getKeys().get();
2281                     if (keysMessage.getStorageService().isPresent()) {
2282                         final var storageKey = keysMessage.getStorageService().get();
2283                         account.setStorageKey(storageKey);
2284                     }
2285                 }
2286                 if (syncMessage.getConfiguration().isPresent()) {
2287                     // TODO
2288                 }
2289             }
2290         }
2291         return actions;
2292     }
2293
2294     private void downloadContactAvatar(SignalServiceAttachment avatar, SignalServiceAddress address) {
2295         try {
2296             avatarStore.storeContactAvatar(address, outputStream -> retrieveAttachment(avatar, outputStream));
2297         } catch (IOException e) {
2298             logger.warn("Failed to download avatar for contact {}, ignoring: {}", address, e.getMessage());
2299         }
2300     }
2301
2302     private void downloadGroupAvatar(SignalServiceAttachment avatar, GroupId groupId) {
2303         try {
2304             avatarStore.storeGroupAvatar(groupId, outputStream -> retrieveAttachment(avatar, outputStream));
2305         } catch (IOException e) {
2306             logger.warn("Failed to download avatar for group {}, ignoring: {}", groupId.toBase64(), e.getMessage());
2307         }
2308     }
2309
2310     private void downloadGroupAvatar(GroupId groupId, GroupSecretParams groupSecretParams, String cdnKey) {
2311         try {
2312             avatarStore.storeGroupAvatar(groupId,
2313                     outputStream -> retrieveGroupV2Avatar(groupSecretParams, cdnKey, outputStream));
2314         } catch (IOException e) {
2315             logger.warn("Failed to download avatar for group {}, ignoring: {}", groupId.toBase64(), e.getMessage());
2316         }
2317     }
2318
2319     private void downloadProfileAvatar(
2320             SignalServiceAddress address, String avatarPath, ProfileKey profileKey
2321     ) {
2322         try {
2323             avatarStore.storeProfileAvatar(address,
2324                     outputStream -> retrieveProfileAvatar(avatarPath, profileKey, outputStream));
2325         } catch (Throwable e) {
2326             if (e instanceof AssertionError && e.getCause() instanceof InterruptedException) {
2327                 Thread.currentThread().interrupt();
2328             }
2329             logger.warn("Failed to download profile avatar, ignoring: {}", e.getMessage());
2330         }
2331     }
2332
2333     public File getAttachmentFile(SignalServiceAttachmentRemoteId attachmentId) {
2334         return attachmentStore.getAttachmentFile(attachmentId);
2335     }
2336
2337     private void downloadAttachment(final SignalServiceAttachment attachment) {
2338         if (!attachment.isPointer()) {
2339             logger.warn("Invalid state, can't store an attachment stream.");
2340         }
2341
2342         var pointer = attachment.asPointer();
2343         if (pointer.getPreview().isPresent()) {
2344             final var preview = pointer.getPreview().get();
2345             try {
2346                 attachmentStore.storeAttachmentPreview(pointer.getRemoteId(),
2347                         outputStream -> outputStream.write(preview, 0, preview.length));
2348             } catch (IOException e) {
2349                 logger.warn("Failed to download attachment preview, ignoring: {}", e.getMessage());
2350             }
2351         }
2352
2353         try {
2354             attachmentStore.storeAttachment(pointer.getRemoteId(),
2355                     outputStream -> retrieveAttachmentPointer(pointer, outputStream));
2356         } catch (IOException e) {
2357             logger.warn("Failed to download attachment ({}), ignoring: {}", pointer.getRemoteId(), e.getMessage());
2358         }
2359     }
2360
2361     private void retrieveGroupV2Avatar(
2362             GroupSecretParams groupSecretParams, String cdnKey, OutputStream outputStream
2363     ) throws IOException {
2364         var groupOperations = dependencies.getGroupsV2Operations().forGroup(groupSecretParams);
2365
2366         var tmpFile = IOUtils.createTempFile();
2367         try (InputStream input = dependencies.getMessageReceiver()
2368                 .retrieveGroupsV2ProfileAvatar(cdnKey, tmpFile, ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
2369             var encryptedData = IOUtils.readFully(input);
2370
2371             var decryptedData = groupOperations.decryptAvatar(encryptedData);
2372             outputStream.write(decryptedData);
2373         } finally {
2374             try {
2375                 Files.delete(tmpFile.toPath());
2376             } catch (IOException e) {
2377                 logger.warn("Failed to delete received group avatar temp file “{}”, ignoring: {}",
2378                         tmpFile,
2379                         e.getMessage());
2380             }
2381         }
2382     }
2383
2384     private void retrieveProfileAvatar(
2385             String avatarPath, ProfileKey profileKey, OutputStream outputStream
2386     ) throws IOException {
2387         var tmpFile = IOUtils.createTempFile();
2388         try (var input = dependencies.getMessageReceiver()
2389                 .retrieveProfileAvatar(avatarPath,
2390                         tmpFile,
2391                         profileKey,
2392                         ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
2393             // Use larger buffer size to prevent AssertionError: Need: 12272 but only have: 8192 ...
2394             IOUtils.copyStream(input, outputStream, (int) ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE);
2395         } finally {
2396             try {
2397                 Files.delete(tmpFile.toPath());
2398             } catch (IOException e) {
2399                 logger.warn("Failed to delete received profile avatar temp file “{}”, ignoring: {}",
2400                         tmpFile,
2401                         e.getMessage());
2402             }
2403         }
2404     }
2405
2406     private void retrieveAttachment(
2407             final SignalServiceAttachment attachment, final OutputStream outputStream
2408     ) throws IOException {
2409         if (attachment.isPointer()) {
2410             var pointer = attachment.asPointer();
2411             retrieveAttachmentPointer(pointer, outputStream);
2412         } else {
2413             var stream = attachment.asStream();
2414             IOUtils.copyStream(stream.getInputStream(), outputStream);
2415         }
2416     }
2417
2418     private void retrieveAttachmentPointer(
2419             SignalServiceAttachmentPointer pointer, OutputStream outputStream
2420     ) throws IOException {
2421         var tmpFile = IOUtils.createTempFile();
2422         try (var input = retrieveAttachmentAsStream(pointer, tmpFile)) {
2423             IOUtils.copyStream(input, outputStream);
2424         } catch (MissingConfigurationException | InvalidMessageException e) {
2425             throw new IOException(e);
2426         } finally {
2427             try {
2428                 Files.delete(tmpFile.toPath());
2429             } catch (IOException e) {
2430                 logger.warn("Failed to delete received attachment temp file “{}”, ignoring: {}",
2431                         tmpFile,
2432                         e.getMessage());
2433             }
2434         }
2435     }
2436
2437     private InputStream retrieveAttachmentAsStream(
2438             SignalServiceAttachmentPointer pointer, File tmpFile
2439     ) throws IOException, InvalidMessageException, MissingConfigurationException {
2440         return dependencies.getMessageReceiver()
2441                 .retrieveAttachment(pointer, tmpFile, ServiceConfig.MAX_ATTACHMENT_SIZE);
2442     }
2443
2444     void sendGroups() throws IOException {
2445         var groupsFile = IOUtils.createTempFile();
2446
2447         try {
2448             try (OutputStream fos = new FileOutputStream(groupsFile)) {
2449                 var out = new DeviceGroupsOutputStream(fos);
2450                 for (var record : getGroups()) {
2451                     if (record instanceof GroupInfoV1) {
2452                         var groupInfo = (GroupInfoV1) record;
2453                         out.write(new DeviceGroup(groupInfo.getGroupId().serialize(),
2454                                 Optional.fromNullable(groupInfo.name),
2455                                 groupInfo.getMembers()
2456                                         .stream()
2457                                         .map(this::resolveSignalServiceAddress)
2458                                         .collect(Collectors.toList()),
2459                                 createGroupAvatarAttachment(groupInfo.getGroupId()),
2460                                 groupInfo.isMember(account.getSelfRecipientId()),
2461                                 Optional.of(groupInfo.messageExpirationTime),
2462                                 Optional.fromNullable(groupInfo.color),
2463                                 groupInfo.blocked,
2464                                 Optional.absent(),
2465                                 groupInfo.archived));
2466                     }
2467                 }
2468             }
2469
2470             if (groupsFile.exists() && groupsFile.length() > 0) {
2471                 try (var groupsFileStream = new FileInputStream(groupsFile)) {
2472                     var attachmentStream = SignalServiceAttachment.newStreamBuilder()
2473                             .withStream(groupsFileStream)
2474                             .withContentType("application/octet-stream")
2475                             .withLength(groupsFile.length())
2476                             .build();
2477
2478                     sendHelper.sendSyncMessage(SignalServiceSyncMessage.forGroups(attachmentStream));
2479                 }
2480             }
2481         } finally {
2482             try {
2483                 Files.delete(groupsFile.toPath());
2484             } catch (IOException e) {
2485                 logger.warn("Failed to delete groups temp file “{}”, ignoring: {}", groupsFile, e.getMessage());
2486             }
2487         }
2488     }
2489
2490     public void sendContacts() throws IOException {
2491         var contactsFile = IOUtils.createTempFile();
2492
2493         try {
2494             try (OutputStream fos = new FileOutputStream(contactsFile)) {
2495                 var out = new DeviceContactsOutputStream(fos);
2496                 for (var contactPair : account.getContactStore().getContacts()) {
2497                     final var recipientId = contactPair.first();
2498                     final var contact = contactPair.second();
2499                     final var address = resolveSignalServiceAddress(recipientId);
2500
2501                     var currentIdentity = account.getIdentityKeyStore().getIdentity(recipientId);
2502                     VerifiedMessage verifiedMessage = null;
2503                     if (currentIdentity != null) {
2504                         verifiedMessage = new VerifiedMessage(address,
2505                                 currentIdentity.getIdentityKey(),
2506                                 currentIdentity.getTrustLevel().toVerifiedState(),
2507                                 currentIdentity.getDateAdded().getTime());
2508                     }
2509
2510                     var profileKey = account.getProfileStore().getProfileKey(recipientId);
2511                     out.write(new DeviceContact(address,
2512                             Optional.fromNullable(contact.getName()),
2513                             createContactAvatarAttachment(address),
2514                             Optional.fromNullable(contact.getColor()),
2515                             Optional.fromNullable(verifiedMessage),
2516                             Optional.fromNullable(profileKey),
2517                             contact.isBlocked(),
2518                             Optional.of(contact.getMessageExpirationTime()),
2519                             Optional.absent(),
2520                             contact.isArchived()));
2521                 }
2522
2523                 if (account.getProfileKey() != null) {
2524                     // Send our own profile key as well
2525                     out.write(new DeviceContact(account.getSelfAddress(),
2526                             Optional.absent(),
2527                             Optional.absent(),
2528                             Optional.absent(),
2529                             Optional.absent(),
2530                             Optional.of(account.getProfileKey()),
2531                             false,
2532                             Optional.absent(),
2533                             Optional.absent(),
2534                             false));
2535                 }
2536             }
2537
2538             if (contactsFile.exists() && contactsFile.length() > 0) {
2539                 try (var contactsFileStream = new FileInputStream(contactsFile)) {
2540                     var attachmentStream = SignalServiceAttachment.newStreamBuilder()
2541                             .withStream(contactsFileStream)
2542                             .withContentType("application/octet-stream")
2543                             .withLength(contactsFile.length())
2544                             .build();
2545
2546                     sendHelper.sendSyncMessage(SignalServiceSyncMessage.forContacts(new ContactsMessage(attachmentStream,
2547                             true)));
2548                 }
2549             }
2550         } finally {
2551             try {
2552                 Files.delete(contactsFile.toPath());
2553             } catch (IOException e) {
2554                 logger.warn("Failed to delete contacts temp file “{}”, ignoring: {}", contactsFile, e.getMessage());
2555             }
2556         }
2557     }
2558
2559     void sendBlockedList() throws IOException {
2560         var addresses = new ArrayList<SignalServiceAddress>();
2561         for (var record : account.getContactStore().getContacts()) {
2562             if (record.second().isBlocked()) {
2563                 addresses.add(resolveSignalServiceAddress(record.first()));
2564             }
2565         }
2566         var groupIds = new ArrayList<byte[]>();
2567         for (var record : getGroups()) {
2568             if (record.isBlocked()) {
2569                 groupIds.add(record.getGroupId().serialize());
2570             }
2571         }
2572         sendHelper.sendSyncMessage(SignalServiceSyncMessage.forBlocked(new BlockedListMessage(addresses, groupIds)));
2573     }
2574
2575     private void sendVerifiedMessage(
2576             SignalServiceAddress destination, IdentityKey identityKey, TrustLevel trustLevel
2577     ) throws IOException {
2578         var verifiedMessage = new VerifiedMessage(destination,
2579                 identityKey,
2580                 trustLevel.toVerifiedState(),
2581                 System.currentTimeMillis());
2582         sendHelper.sendSyncMessage(SignalServiceSyncMessage.forVerified(verifiedMessage));
2583     }
2584
2585     public List<Pair<RecipientId, Contact>> getContacts() {
2586         return account.getContactStore().getContacts();
2587     }
2588
2589     public String getContactOrProfileName(String number) throws InvalidNumberException {
2590         final var recipientId = canonicalizeAndResolveRecipient(number);
2591         final var recipient = account.getRecipientStore().getRecipient(recipientId);
2592         if (recipient == null) {
2593             return null;
2594         }
2595
2596         if (recipient.getContact() != null && !Util.isEmpty(recipient.getContact().getName())) {
2597             return recipient.getContact().getName();
2598         }
2599
2600         if (recipient.getProfile() != null && recipient.getProfile() != null) {
2601             return recipient.getProfile().getDisplayName();
2602         }
2603
2604         return null;
2605     }
2606
2607     public GroupInfo getGroup(GroupId groupId) {
2608         return getGroup(groupId, false);
2609     }
2610
2611     public GroupInfo getGroup(GroupId groupId, boolean forceUpdate) {
2612         final var group = account.getGroupStore().getGroup(groupId);
2613         if (group instanceof GroupInfoV2 && (forceUpdate || ((GroupInfoV2) group).getGroup() == null)) {
2614             final var groupSecretParams = GroupSecretParams.deriveFromMasterKey(((GroupInfoV2) group).getMasterKey());
2615             ((GroupInfoV2) group).setGroup(groupV2Helper.getDecryptedGroup(groupSecretParams), this::resolveRecipient);
2616             account.getGroupStore().updateGroup(group);
2617         }
2618         return group;
2619     }
2620
2621     public List<IdentityInfo> getIdentities() {
2622         return account.getIdentityKeyStore().getIdentities();
2623     }
2624
2625     public List<IdentityInfo> getIdentities(String number) throws InvalidNumberException {
2626         final var identity = account.getIdentityKeyStore().getIdentity(canonicalizeAndResolveRecipient(number));
2627         return identity == null ? List.of() : List.of(identity);
2628     }
2629
2630     /**
2631      * Trust this the identity with this fingerprint
2632      *
2633      * @param name        username of the identity
2634      * @param fingerprint Fingerprint
2635      */
2636     public boolean trustIdentityVerified(String name, byte[] fingerprint) throws InvalidNumberException {
2637         var recipientId = canonicalizeAndResolveRecipient(name);
2638         return trustIdentity(recipientId,
2639                 identityKey -> Arrays.equals(identityKey.serialize(), fingerprint),
2640                 TrustLevel.TRUSTED_VERIFIED);
2641     }
2642
2643     /**
2644      * Trust this the identity with this safety number
2645      *
2646      * @param name         username of the identity
2647      * @param safetyNumber Safety number
2648      */
2649     public boolean trustIdentityVerifiedSafetyNumber(String name, String safetyNumber) throws InvalidNumberException {
2650         var recipientId = canonicalizeAndResolveRecipient(name);
2651         var address = account.getRecipientStore().resolveServiceAddress(recipientId);
2652         return trustIdentity(recipientId,
2653                 identityKey -> safetyNumber.equals(computeSafetyNumber(address, identityKey)),
2654                 TrustLevel.TRUSTED_VERIFIED);
2655     }
2656
2657     /**
2658      * Trust all keys of this identity without verification
2659      *
2660      * @param name username of the identity
2661      */
2662     public boolean trustIdentityAllKeys(String name) throws InvalidNumberException {
2663         var recipientId = canonicalizeAndResolveRecipient(name);
2664         return trustIdentity(recipientId, identityKey -> true, TrustLevel.TRUSTED_UNVERIFIED);
2665     }
2666
2667     private boolean trustIdentity(
2668             RecipientId recipientId, Function<IdentityKey, Boolean> verifier, TrustLevel trustLevel
2669     ) {
2670         var identity = account.getIdentityKeyStore().getIdentity(recipientId);
2671         if (identity == null) {
2672             return false;
2673         }
2674
2675         if (!verifier.apply(identity.getIdentityKey())) {
2676             return false;
2677         }
2678
2679         account.getIdentityKeyStore().setIdentityTrustLevel(recipientId, identity.getIdentityKey(), trustLevel);
2680         try {
2681             var address = account.getRecipientStore().resolveServiceAddress(recipientId);
2682             sendVerifiedMessage(address, identity.getIdentityKey(), trustLevel);
2683         } catch (IOException e) {
2684             logger.warn("Failed to send verification sync message: {}", e.getMessage());
2685         }
2686
2687         return true;
2688     }
2689
2690     private void handleIdentityFailure(
2691             final RecipientId recipientId, final SendMessageResult.IdentityFailure identityFailure
2692     ) {
2693         final var identityKey = identityFailure.getIdentityKey();
2694         if (identityKey != null) {
2695             final var newIdentity = account.getIdentityKeyStore().saveIdentity(recipientId, identityKey, new Date());
2696             if (newIdentity) {
2697                 account.getSessionStore().archiveSessions(recipientId);
2698             }
2699         } else {
2700             // Retrieve profile to get the current identity key from the server
2701             retrieveEncryptedProfile(recipientId);
2702         }
2703     }
2704
2705     public String computeSafetyNumber(SignalServiceAddress theirAddress, IdentityKey theirIdentityKey) {
2706         final var fingerprint = Utils.computeSafetyNumber(capabilities.isUuid(),
2707                 account.getSelfAddress(),
2708                 getIdentityKeyPair().getPublicKey(),
2709                 theirAddress,
2710                 theirIdentityKey);
2711         return fingerprint == null ? null : fingerprint.getDisplayableFingerprint().getDisplayText();
2712     }
2713
2714     public byte[] computeSafetyNumberForScanning(SignalServiceAddress theirAddress, IdentityKey theirIdentityKey) {
2715         final var fingerprint = Utils.computeSafetyNumber(capabilities.isUuid(),
2716                 account.getSelfAddress(),
2717                 getIdentityKeyPair().getPublicKey(),
2718                 theirAddress,
2719                 theirIdentityKey);
2720         return fingerprint == null ? null : fingerprint.getScannableFingerprint().getSerialized();
2721     }
2722
2723     @Deprecated
2724     public SignalServiceAddress resolveSignalServiceAddress(String identifier) {
2725         var address = Utils.getSignalServiceAddressFromIdentifier(identifier);
2726
2727         return resolveSignalServiceAddress(address);
2728     }
2729
2730     @Deprecated
2731     public SignalServiceAddress resolveSignalServiceAddress(SignalServiceAddress address) {
2732         if (address.matches(account.getSelfAddress())) {
2733             return account.getSelfAddress();
2734         }
2735
2736         return account.getRecipientStore().resolveServiceAddress(address);
2737     }
2738
2739     public SignalServiceAddress resolveSignalServiceAddress(RecipientId recipientId) {
2740         return account.getRecipientStore().resolveServiceAddress(recipientId);
2741     }
2742
2743     private RecipientId canonicalizeAndResolveRecipient(String identifier) throws InvalidNumberException {
2744         var canonicalizedNumber = UuidUtil.isUuid(identifier) ? identifier : canonicalizePhoneNumber(identifier);
2745
2746         return resolveRecipient(canonicalizedNumber);
2747     }
2748
2749     private String canonicalizePhoneNumber(final String number) throws InvalidNumberException {
2750         return PhoneNumberFormatter.formatNumber(number, account.getUsername());
2751     }
2752
2753     private RecipientId resolveRecipient(final String identifier) {
2754         var address = Utils.getSignalServiceAddressFromIdentifier(identifier);
2755
2756         return resolveRecipient(address);
2757     }
2758
2759     public RecipientId resolveRecipient(SignalServiceAddress address) {
2760         return account.getRecipientStore().resolveRecipient(address);
2761     }
2762
2763     private RecipientId resolveRecipientTrusted(SignalServiceAddress address) {
2764         return account.getRecipientStore().resolveRecipientTrusted(address);
2765     }
2766
2767     private void enqueueJob(Job job) {
2768         var context = new Context(account,
2769                 dependencies.getAccountManager(),
2770                 dependencies.getMessageReceiver(),
2771                 stickerPackStore);
2772         job.run(context);
2773     }
2774
2775     @Override
2776     public void close() throws IOException {
2777         close(true);
2778     }
2779
2780     void close(boolean closeAccount) throws IOException {
2781         executor.shutdown();
2782
2783         dependencies.getSignalWebSocket().disconnect();
2784
2785         if (closeAccount && account != null) {
2786             account.close();
2787         }
2788         account = null;
2789     }
2790
2791     public interface ReceiveMessageHandler {
2792
2793         void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent decryptedContent, Throwable e);
2794     }
2795 }