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.UnidentifiedAccessHelper;
  37 import org.asamk.signal.manager.jobs.Context;
  38 import org.asamk.signal.manager.jobs.Job;
  39 import org.asamk.signal.manager.jobs.RetrieveStickerPackJob;
  40 import org.asamk.signal.manager.storage.SignalAccount;
  41 import org.asamk.signal.manager.storage.groups.GroupInfo;
  42 import org.asamk.signal.manager.storage.groups.GroupInfoV1;
  43 import org.asamk.signal.manager.storage.groups.GroupInfoV2;
  44 import org.asamk.signal.manager.storage.identities.IdentityInfo;
  45 import org.asamk.signal.manager.storage.messageCache.CachedMessage;
  46 import org.asamk.signal.manager.storage.recipients.Contact;
  47 import org.asamk.signal.manager.storage.recipients.Profile;
  48 import org.asamk.signal.manager.storage.recipients.RecipientId;
  49 import org.asamk.signal.manager.storage.stickers.Sticker;
  50 import org.asamk.signal.manager.storage.stickers.StickerPackId;
  51 import org.asamk.signal.manager.util.AttachmentUtils;
  52 import org.asamk.signal.manager.util.IOUtils;
  53 import org.asamk.signal.manager.util.KeyUtils;
  54 import org.asamk.signal.manager.util.ProfileUtils;
  55 import org.asamk.signal.manager.util.StickerUtils;
  56 import org.asamk.signal.manager.util.Utils;
  57 import org.signal.libsignal.metadata.InvalidMetadataMessageException;
  58 import org.signal.libsignal.metadata.InvalidMetadataVersionException;
  59 import org.signal.libsignal.metadata.ProtocolDuplicateMessageException;
  60 import org.signal.libsignal.metadata.ProtocolInvalidKeyException;
  61 import org.signal.libsignal.metadata.ProtocolInvalidKeyIdException;
  62 import org.signal.libsignal.metadata.ProtocolInvalidMessageException;
  63 import org.signal.libsignal.metadata.ProtocolInvalidVersionException;
  64 import org.signal.libsignal.metadata.ProtocolLegacyMessageException;
  65 import org.signal.libsignal.metadata.ProtocolNoSessionException;
  66 import org.signal.libsignal.metadata.ProtocolUntrustedIdentityException;
  67 import org.signal.libsignal.metadata.SelfSendException;
  68 import org.signal.storageservice.protos.groups.GroupChange;
  69 import org.signal.storageservice.protos.groups.local.DecryptedGroup;
  70 import org.signal.zkgroup.InvalidInputException;
  71 import org.signal.zkgroup.VerificationFailedException;
  72 import org.signal.zkgroup.groups.GroupMasterKey;
  73 import org.signal.zkgroup.groups.GroupSecretParams;
  74 import org.signal.zkgroup.profiles.ProfileKey;
  75 import org.signal.zkgroup.profiles.ProfileKeyCredential;
  76 import org.slf4j.Logger;
  77 import org.slf4j.LoggerFactory;
  78 import org.whispersystems.libsignal.IdentityKey;
  79 import org.whispersystems.libsignal.IdentityKeyPair;
  80 import org.whispersystems.libsignal.InvalidKeyException;
  81 import org.whispersystems.libsignal.InvalidMessageException;
  82 import org.whispersystems.libsignal.ecc.ECPublicKey;
  83 import org.whispersystems.libsignal.state.PreKeyRecord;
  84 import org.whispersystems.libsignal.state.SignedPreKeyRecord;
  85 import org.whispersystems.libsignal.util.Pair;
  86 import org.whispersystems.libsignal.util.guava.Optional;
  87 import org.whispersystems.signalservice.api.InvalidMessageStructureException;
  88 import org.whispersystems.signalservice.api.SignalSessionLock;
  89 import org.whispersystems.signalservice.api.crypto.ContentHint;
  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.SentTranscriptMessage;
 115 import org.whispersystems.signalservice.api.messages.multidevice.SignalServiceSyncMessage;
 116 import org.whispersystems.signalservice.api.messages.multidevice.StickerPackOperationMessage;
 117 import org.whispersystems.signalservice.api.messages.multidevice.VerifiedMessage;
 118 import org.whispersystems.signalservice.api.profiles.ProfileAndCredential;
 119 import org.whispersystems.signalservice.api.profiles.SignalServiceProfile;
 120 import org.whispersystems.signalservice.api.push.SignalServiceAddress;
 121 import org.whispersystems.signalservice.api.push.exceptions.ConflictException;
 122 import org.whispersystems.signalservice.api.push.exceptions.MissingConfigurationException;
 123 import org.whispersystems.signalservice.api.push.exceptions.UnregisteredUserException;
 124 import org.whispersystems.signalservice.api.util.DeviceNameUtil;
 125 import org.whispersystems.signalservice.api.util.InvalidNumberException;
 126 import org.whispersystems.signalservice.api.util.PhoneNumberFormatter;
 127 import org.whispersystems.signalservice.api.util.UuidUtil;
 128 import org.whispersystems.signalservice.api.websocket.WebSocketUnavailableException;
 129 import org.whispersystems.signalservice.internal.contacts.crypto.Quote;
 130 import org.whispersystems.signalservice.internal.contacts.crypto.UnauthenticatedQuoteException;
 131 import org.whispersystems.signalservice.internal.contacts.crypto.UnauthenticatedResponseException;
 132 import org.whispersystems.signalservice.internal.push.SignalServiceProtos;
 133 import org.whispersystems.signalservice.internal.push.UnsupportedDataMessageException;
 134 import org.whispersystems.signalservice.internal.util.DynamicCredentialsProvider;
 135 import org.whispersystems.signalservice.internal.util.Hex;
 136 import org.whispersystems.signalservice.internal.util.Util;
 137
 138 import java.io.Closeable;
 139 import java.io.File;
 140 import java.io.FileInputStream;
 141 import java.io.FileOutputStream;
 142 import java.io.IOException;
 143 import java.io.InputStream;
 144 import java.io.OutputStream;
 145 import java.net.URI;
 146 import java.net.URISyntaxException;
 147 import java.net.URLEncoder;
 148 import java.nio.charset.StandardCharsets;
 149 import java.nio.file.Files;
 150 import java.security.SignatureException;
 151 import java.util.ArrayList;
 152 import java.util.Arrays;
 153 import java.util.Base64;
 154 import java.util.Collection;
 155 import java.util.Date;
 156 import java.util.HashSet;
 157 import java.util.List;
 158 import java.util.Map;
 159 import java.util.Set;
 160 import java.util.UUID;
 161 import java.util.concurrent.ExecutorService;
 162 import java.util.concurrent.Executors;
 163 import java.util.concurrent.TimeUnit;
 164 import java.util.concurrent.TimeoutException;
 165 import java.util.concurrent.locks.ReentrantLock;
 166 import java.util.function.Function;
 167 import java.util.stream.Collectors;
 168
 169 import static org.asamk.signal.manager.config.ServiceConfig.capabilities;
 170
 171 public class Manager implements Closeable {
 172
 173     private final static Logger logger = LoggerFactory.getLogger(Manager.class);
 174
 175     private final ServiceEnvironmentConfig serviceEnvironmentConfig;
 176     private final SignalDependencies dependencies;
 177
 178     private SignalAccount account;
 179
 180     private final ExecutorService executor = Executors.newCachedThreadPool();
 181
 182     private final UnidentifiedAccessHelper unidentifiedAccessHelper;
 183     private final ProfileHelper profileHelper;
 184     private final GroupV2Helper groupV2Helper;
 185     private final PinHelper pinHelper;
 186     private final AvatarStore avatarStore;
 187     private final AttachmentStore attachmentStore;
 188     private final StickerPackStore stickerPackStore;
 189     private final SignalSessionLock sessionLock = new SignalSessionLock() {
 190         private final ReentrantLock LEGACY_LOCK = new ReentrantLock();
 191
 192         @Override
 193         public Lock acquire() {
 194             LEGACY_LOCK.lock();
 195             return LEGACY_LOCK::unlock;
 196         }
 197     };
 198
 199     Manager(
 200             SignalAccount account,
 201             PathConfig pathConfig,
 202             ServiceEnvironmentConfig serviceEnvironmentConfig,
 203             String userAgent
 204     ) {
 205         this.account = account;
 206         this.serviceEnvironmentConfig = serviceEnvironmentConfig;
 207
 208         final var credentialsProvider = new DynamicCredentialsProvider(account.getUuid(),
 209                 account.getUsername(),
 210                 account.getPassword(),
 211                 account.getDeviceId());
 212         this.dependencies = new SignalDependencies(account.getSelfAddress(),
 213                 serviceEnvironmentConfig,
 214                 userAgent,
 215                 credentialsProvider,
 216                 account.getSignalProtocolStore(),
 217                 executor,
 218                 sessionLock);
 219         this.pinHelper = new PinHelper(dependencies.getKeyBackupService());
 220
 221         this.unidentifiedAccessHelper = new UnidentifiedAccessHelper(account::getProfileKey,
 222                 account.getProfileStore()::getProfileKey,
 223                 this::getRecipientProfile,
 224                 this::getSenderCertificate);
 225         this.profileHelper = new ProfileHelper(account.getProfileStore()::getProfileKey,
 226                 unidentifiedAccessHelper::getAccessFor,
 227                 dependencies::getProfileService,
 228                 dependencies::getMessageReceiver,
 229                 this::resolveSignalServiceAddress);
 230         this.groupV2Helper = new GroupV2Helper(this::getRecipientProfileKeyCredential,
 231                 this::getRecipientProfile,
 232                 account::getSelfRecipientId,
 233                 dependencies.getGroupsV2Operations(),
 234                 dependencies.getGroupsV2Api(),
 235                 this::getGroupAuthForToday,
 236                 this::resolveSignalServiceAddress);
 237         this.avatarStore = new AvatarStore(pathConfig.getAvatarsPath());
 238         this.attachmentStore = new AttachmentStore(pathConfig.getAttachmentsPath());
 239         this.stickerPackStore = new StickerPackStore(pathConfig.getStickerPacksPath());
 240     }
 241
 242     public String getUsername() {
 243         return account.getUsername();
 244     }
 245
 246     public SignalServiceAddress getSelfAddress() {
 247         return account.getSelfAddress();
 248     }
 249
 250     public RecipientId getSelfRecipientId() {
 251         return account.getSelfRecipientId();
 252     }
 253
 254     private IdentityKeyPair getIdentityKeyPair() {
 255         return account.getIdentityKeyPair();
 256     }
 257
 258     public int getDeviceId() {
 259         return account.getDeviceId();
 260     }
 261
 262     public static Manager init(
 263             String username, File settingsPath, ServiceEnvironment serviceEnvironment, String userAgent
 264     ) throws IOException, NotRegisteredException {
 265         var pathConfig = PathConfig.createDefault(settingsPath);
 266
 267         if (!SignalAccount.userExists(pathConfig.getDataPath(), username)) {
 268             throw new NotRegisteredException();
 269         }
 270
 271         var account = SignalAccount.load(pathConfig.getDataPath(), username, true);
 272
 273         if (!account.isRegistered()) {
 274             throw new NotRegisteredException();
 275         }
 276
 277         final var serviceEnvironmentConfig = ServiceConfig.getServiceEnvironmentConfig(serviceEnvironment, userAgent);
 278
 279         return new Manager(account, pathConfig, serviceEnvironmentConfig, userAgent);
 280     }
 281
 282     public static List<String> getAllLocalUsernames(File settingsPath) {
 283         var pathConfig = PathConfig.createDefault(settingsPath);
 284         final var dataPath = pathConfig.getDataPath();
 285         final var files = dataPath.listFiles();
 286
 287         if (files == null) {
 288             return List.of();
 289         }
 290
 291         return Arrays.stream(files)
 292                 .filter(File::isFile)
 293                 .map(File::getName)
 294                 .filter(file -> PhoneNumberFormatter.isValidNumber(file, null))
 295                 .collect(Collectors.toList());
 296     }
 297
 298     public void checkAccountState() throws IOException {
 299         if (account.getLastReceiveTimestamp() == 0) {
 300             logger.warn("The Signal protocol expects that incoming messages are regularly received.");
 301         } else {
 302             var diffInMilliseconds = System.currentTimeMillis() - account.getLastReceiveTimestamp();
 303             long days = TimeUnit.DAYS.convert(diffInMilliseconds, TimeUnit.MILLISECONDS);
 304             if (days > 7) {
 305                 logger.warn(
 306                         "Messages have been last received {} days ago. The Signal protocol expects that incoming messages are regularly received.",
 307                         days);
 308             }
 309         }
 310         if (dependencies.getAccountManager().getPreKeysCount() < ServiceConfig.PREKEY_MINIMUM_COUNT) {
 311             refreshPreKeys();
 312         }
 313         if (account.getUuid() == null) {
 314             account.setUuid(dependencies.getAccountManager().getOwnUuid());
 315         }
 316         updateAccountAttributes();
 317     }
 318
 319     /**
 320      * This is used for checking a set of phone numbers for registration on Signal
 321      *
 322      * @param numbers The set of phone number in question
 323      * @return A map of numbers to booleans. True if registered, false otherwise. Should never be null
 324      * @throws IOException if its unable to get the contacts to check if they're registered
 325      */
 326     public Map<String, Boolean> areUsersRegistered(Set<String> numbers) throws IOException {
 327         // Note "contactDetails" has no optionals. It only gives us info on users who are registered
 328         var contactDetails = getRegisteredUsers(numbers);
 329
 330         var registeredUsers = contactDetails.keySet();
 331
 332         return numbers.stream().collect(Collectors.toMap(x -> x, registeredUsers::contains));
 333     }
 334
 335     public void updateAccountAttributes() throws IOException {
 336         dependencies.getAccountManager()
 337                 .setAccountAttributes(account.getEncryptedDeviceName(),
 338                         null,
 339                         account.getLocalRegistrationId(),
 340                         true,
 341                         // set legacy pin only if no KBS master key is set
 342                         account.getPinMasterKey() == null ? account.getRegistrationLockPin() : null,
 343                         account.getPinMasterKey() == null ? null : account.getPinMasterKey().deriveRegistrationLock(),
 344                         account.getSelfUnidentifiedAccessKey(),
 345                         account.isUnrestrictedUnidentifiedAccess(),
 346                         capabilities,
 347                         account.isDiscoverableByPhoneNumber());
 348     }
 349
 350     /**
 351      * @param givenName  if null, the previous givenName will be kept
 352      * @param familyName if null, the previous familyName will be kept
 353      * @param about      if null, the previous about text will be kept
 354      * @param aboutEmoji if null, the previous about emoji will be kept
 355      * @param avatar     if avatar is null the image from the local avatar store is used (if present),
 356      */
 357     public void setProfile(
 358             String givenName, final String familyName, String about, String aboutEmoji, Optional<File> avatar
 359     ) throws IOException {
 360         var profile = getRecipientProfile(account.getSelfRecipientId());
 361         var builder = profile == null ? Profile.newBuilder() : Profile.newBuilder(profile);
 362         if (givenName != null) {
 363             builder.withGivenName(givenName);
 364         }
 365         if (familyName != null) {
 366             builder.withFamilyName(familyName);
 367         }
 368         if (about != null) {
 369             builder.withAbout(about);
 370         }
 371         if (aboutEmoji != null) {
 372             builder.withAboutEmoji(aboutEmoji);
 373         }
 374         var newProfile = builder.build();
 375
 376         try (final var streamDetails = avatar == null
 377                 ? avatarStore.retrieveProfileAvatar(getSelfAddress())
 378                 : avatar.isPresent() ? Utils.createStreamDetailsFromFile(avatar.get()) : null) {
 379             dependencies.getAccountManager()
 380                     .setVersionedProfile(account.getUuid(),
 381                             account.getProfileKey(),
 382                             newProfile.getInternalServiceName(),
 383                             newProfile.getAbout() == null ? "" : newProfile.getAbout(),
 384                             newProfile.getAboutEmoji() == null ? "" : newProfile.getAboutEmoji(),
 385                             Optional.absent(),
 386                             streamDetails);
 387         }
 388
 389         if (avatar != null) {
 390             if (avatar.isPresent()) {
 391                 avatarStore.storeProfileAvatar(getSelfAddress(),
 392                         outputStream -> IOUtils.copyFileToStream(avatar.get(), outputStream));
 393             } else {
 394                 avatarStore.deleteProfileAvatar(getSelfAddress());
 395             }
 396         }
 397         account.getProfileStore().storeProfile(account.getSelfRecipientId(), newProfile);
 398
 399         try {
 400             sendSyncMessage(SignalServiceSyncMessage.forFetchLatest(SignalServiceSyncMessage.FetchType.LOCAL_PROFILE));
 401         } catch (UntrustedIdentityException ignored) {
 402         }
 403     }
 404
 405     public void unregister() throws IOException {
 406         // When setting an empty GCM id, the Signal-Server also sets the fetchesMessages property to false.
 407         // If this is the master device, other users can't send messages to this number anymore.
 408         // If this is a linked device, other users can still send messages, but this device doesn't receive them anymore.
 409         dependencies.getAccountManager().setGcmId(Optional.absent());
 410
 411         account.setRegistered(false);
 412     }
 413
 414     public void deleteAccount() throws IOException {
 415         dependencies.getAccountManager().deleteAccount();
 416
 417         account.setRegistered(false);
 418     }
 419
 420     public List<Device> getLinkedDevices() throws IOException {
 421         var devices = dependencies.getAccountManager().getDevices();
 422         account.setMultiDevice(devices.size() > 1);
 423         var identityKey = account.getIdentityKeyPair().getPrivateKey();
 424         return devices.stream().map(d -> {
 425             String deviceName = d.getName();
 426             if (deviceName != null) {
 427                 try {
 428                     deviceName = DeviceNameUtil.decryptDeviceName(deviceName, identityKey);
 429                 } catch (IOException e) {
 430                     logger.debug("Failed to decrypt device name, maybe plain text?", e);
 431                 }
 432             }
 433             return new Device(d.getId(), deviceName, d.getCreated(), d.getLastSeen());
 434         }).collect(Collectors.toList());
 435     }
 436
 437     public void removeLinkedDevices(int deviceId) throws IOException {
 438         dependencies.getAccountManager().removeDevice(deviceId);
 439         var devices = dependencies.getAccountManager().getDevices();
 440         account.setMultiDevice(devices.size() > 1);
 441     }
 442
 443     public void addDeviceLink(URI linkUri) throws IOException, InvalidKeyException {
 444         var info = DeviceLinkInfo.parseDeviceLinkUri(linkUri);
 445
 446         addDevice(info.deviceIdentifier, info.deviceKey);
 447     }
 448
 449     private void addDevice(String deviceIdentifier, ECPublicKey deviceKey) throws IOException, InvalidKeyException {
 450         var identityKeyPair = getIdentityKeyPair();
 451         var verificationCode = dependencies.getAccountManager().getNewDeviceVerificationCode();
 452
 453         dependencies.getAccountManager()
 454                 .addDevice(deviceIdentifier,
 455                         deviceKey,
 456                         identityKeyPair,
 457                         Optional.of(account.getProfileKey().serialize()),
 458                         verificationCode);
 459         account.setMultiDevice(true);
 460     }
 461
 462     public void setRegistrationLockPin(Optional<String> pin) throws IOException, UnauthenticatedResponseException {
 463         if (!account.isMasterDevice()) {
 464             throw new RuntimeException("Only master device can set a PIN");
 465         }
 466         if (pin.isPresent()) {
 467             final var masterKey = account.getPinMasterKey() != null
 468                     ? account.getPinMasterKey()
 469                     : KeyUtils.createMasterKey();
 470
 471             pinHelper.setRegistrationLockPin(pin.get(), masterKey);
 472
 473             account.setRegistrationLockPin(pin.get(), masterKey);
 474         } else {
 475             // Remove legacy registration lock
 476             dependencies.getAccountManager().removeRegistrationLockV1();
 477
 478             // Remove KBS Pin
 479             pinHelper.removeRegistrationLockPin();
 480
 481             account.setRegistrationLockPin(null, null);
 482         }
 483     }
 484
 485     void refreshPreKeys() throws IOException {
 486         var oneTimePreKeys = generatePreKeys();
 487         final var identityKeyPair = getIdentityKeyPair();
 488         var signedPreKeyRecord = generateSignedPreKey(identityKeyPair);
 489
 490         dependencies.getAccountManager().setPreKeys(identityKeyPair.getPublicKey(), signedPreKeyRecord, oneTimePreKeys);
 491     }
 492
 493     private List<PreKeyRecord> generatePreKeys() {
 494         final var offset = account.getPreKeyIdOffset();
 495
 496         var records = KeyUtils.generatePreKeyRecords(offset, ServiceConfig.PREKEY_BATCH_SIZE);
 497         account.addPreKeys(records);
 498
 499         return records;
 500     }
 501
 502     private SignedPreKeyRecord generateSignedPreKey(IdentityKeyPair identityKeyPair) {
 503         final var signedPreKeyId = account.getNextSignedPreKeyId();
 504
 505         var record = KeyUtils.generateSignedPreKeyRecord(identityKeyPair, signedPreKeyId);
 506         account.addSignedPreKey(record);
 507
 508         return record;
 509     }
 510
 511     public Profile getRecipientProfile(
 512             RecipientId recipientId
 513     ) {
 514         return getRecipientProfile(recipientId, false);
 515     }
 516
 517     private final Set<RecipientId> pendingProfileRequest = new HashSet<>();
 518
 519     Profile getRecipientProfile(
 520             RecipientId recipientId, boolean force
 521     ) {
 522         var profile = account.getProfileStore().getProfile(recipientId);
 523
 524         var now = System.currentTimeMillis();
 525         // Profiles are cached for 24h before retrieving them again, unless forced
 526         if (!force && profile != null && now - profile.getLastUpdateTimestamp() < 24 * 60 * 60 * 1000) {
 527             return profile;
 528         }
 529
 530         synchronized (pendingProfileRequest) {
 531             if (pendingProfileRequest.contains(recipientId)) {
 532                 return profile;
 533             }
 534             pendingProfileRequest.add(recipientId);
 535         }
 536         final SignalServiceProfile encryptedProfile;
 537         try {
 538             encryptedProfile = retrieveEncryptedProfile(recipientId);
 539         } finally {
 540             synchronized (pendingProfileRequest) {
 541                 pendingProfileRequest.remove(recipientId);
 542             }
 543         }
 544         if (encryptedProfile == null) {
 545             return null;
 546         }
 547
 548         profile = decryptProfileIfKeyKnown(recipientId, encryptedProfile);
 549         account.getProfileStore().storeProfile(recipientId, profile);
 550
 551         return profile;
 552     }
 553
 554     private Profile decryptProfileIfKeyKnown(
 555             final RecipientId recipientId, final SignalServiceProfile encryptedProfile
 556     ) {
 557         var profileKey = account.getProfileStore().getProfileKey(recipientId);
 558         if (profileKey == null) {
 559             return new Profile(System.currentTimeMillis(),
 560                     null,
 561                     null,
 562                     null,
 563                     null,
 564                     ProfileUtils.getUnidentifiedAccessMode(encryptedProfile, null),
 565                     ProfileUtils.getCapabilities(encryptedProfile));
 566         }
 567
 568         return decryptProfileAndDownloadAvatar(recipientId, profileKey, encryptedProfile);
 569     }
 570
 571     private SignalServiceProfile retrieveEncryptedProfile(RecipientId recipientId) {
 572         try {
 573             return retrieveProfileAndCredential(recipientId, SignalServiceProfile.RequestType.PROFILE).getProfile();
 574         } catch (IOException e) {
 575             logger.warn("Failed to retrieve profile, ignoring: {}", e.getMessage());
 576             return null;
 577         }
 578     }
 579
 580     private ProfileAndCredential retrieveProfileAndCredential(
 581             final RecipientId recipientId, final SignalServiceProfile.RequestType requestType
 582     ) throws IOException {
 583         final var profileAndCredential = profileHelper.retrieveProfileSync(recipientId, requestType);
 584         final var profile = profileAndCredential.getProfile();
 585
 586         try {
 587             var newIdentity = account.getIdentityKeyStore()
 588                     .saveIdentity(recipientId,
 589                             new IdentityKey(Base64.getDecoder().decode(profile.getIdentityKey())),
 590                             new Date());
 591
 592             if (newIdentity) {
 593                 account.getSessionStore().archiveSessions(recipientId);
 594             }
 595         } catch (InvalidKeyException ignored) {
 596             logger.warn("Got invalid identity key in profile for {}",
 597                     resolveSignalServiceAddress(recipientId).getIdentifier());
 598         }
 599         return profileAndCredential;
 600     }
 601
 602     private ProfileKeyCredential getRecipientProfileKeyCredential(RecipientId recipientId) {
 603         var profileKeyCredential = account.getProfileStore().getProfileKeyCredential(recipientId);
 604         if (profileKeyCredential != null) {
 605             return profileKeyCredential;
 606         }
 607
 608         ProfileAndCredential profileAndCredential;
 609         try {
 610             profileAndCredential = retrieveProfileAndCredential(recipientId,
 611                     SignalServiceProfile.RequestType.PROFILE_AND_CREDENTIAL);
 612         } catch (IOException e) {
 613             logger.warn("Failed to retrieve profile key credential, ignoring: {}", e.getMessage());
 614             return null;
 615         }
 616
 617         profileKeyCredential = profileAndCredential.getProfileKeyCredential().orNull();
 618         account.getProfileStore().storeProfileKeyCredential(recipientId, profileKeyCredential);
 619
 620         var profileKey = account.getProfileStore().getProfileKey(recipientId);
 621         if (profileKey != null) {
 622             final var profile = decryptProfileAndDownloadAvatar(recipientId,
 623                     profileKey,
 624                     profileAndCredential.getProfile());
 625             account.getProfileStore().storeProfile(recipientId, profile);
 626         }
 627
 628         return profileKeyCredential;
 629     }
 630
 631     private Profile decryptProfileAndDownloadAvatar(
 632             final RecipientId recipientId, final ProfileKey profileKey, final SignalServiceProfile encryptedProfile
 633     ) {
 634         if (encryptedProfile.getAvatar() != null) {
 635             downloadProfileAvatar(resolveSignalServiceAddress(recipientId), encryptedProfile.getAvatar(), profileKey);
 636         }
 637
 638         return ProfileUtils.decryptProfile(profileKey, encryptedProfile);
 639     }
 640
 641     private Optional<SignalServiceAttachmentStream> createGroupAvatarAttachment(GroupId groupId) throws IOException {
 642         final var streamDetails = avatarStore.retrieveGroupAvatar(groupId);
 643         if (streamDetails == null) {
 644             return Optional.absent();
 645         }
 646
 647         return Optional.of(AttachmentUtils.createAttachment(streamDetails, Optional.absent()));
 648     }
 649
 650     private Optional<SignalServiceAttachmentStream> createContactAvatarAttachment(SignalServiceAddress address) throws IOException {
 651         final var streamDetails = avatarStore.retrieveContactAvatar(address);
 652         if (streamDetails == null) {
 653             return Optional.absent();
 654         }
 655
 656         return Optional.of(AttachmentUtils.createAttachment(streamDetails, Optional.absent()));
 657     }
 658
 659     private GroupInfo getGroupForSending(GroupId groupId) throws GroupNotFoundException, NotAGroupMemberException {
 660         var g = getGroup(groupId);
 661         if (g == null) {
 662             throw new GroupNotFoundException(groupId);
 663         }
 664         if (!g.isMember(account.getSelfRecipientId())) {
 665             throw new NotAGroupMemberException(groupId, g.getTitle());
 666         }
 667         return g;
 668     }
 669
 670     private GroupInfo getGroupForUpdating(GroupId groupId) throws GroupNotFoundException, NotAGroupMemberException {
 671         var g = getGroup(groupId);
 672         if (g == null) {
 673             throw new GroupNotFoundException(groupId);
 674         }
 675         if (!g.isMember(account.getSelfRecipientId()) && !g.isPendingMember(account.getSelfRecipientId())) {
 676             throw new NotAGroupMemberException(groupId, g.getTitle());
 677         }
 678         return g;
 679     }
 680
 681     public List<GroupInfo> getGroups() {
 682         return account.getGroupStore().getGroups();
 683     }
 684
 685     public Pair<Long, List<SendMessageResult>> sendGroupMessage(
 686             String messageText, List<String> attachments, GroupId groupId
 687     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 688         final var messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
 689         if (attachments != null) {
 690             messageBuilder.withAttachments(AttachmentUtils.getSignalServiceAttachments(attachments));
 691         }
 692
 693         return sendGroupMessage(messageBuilder, groupId);
 694     }
 695
 696     public Pair<Long, List<SendMessageResult>> sendGroupMessageReaction(
 697             String emoji, boolean remove, String targetAuthor, long targetSentTimestamp, GroupId groupId
 698     ) throws IOException, InvalidNumberException, NotAGroupMemberException, GroupNotFoundException {
 699         var targetAuthorRecipientId = canonicalizeAndResolveRecipient(targetAuthor);
 700         var reaction = new SignalServiceDataMessage.Reaction(emoji,
 701                 remove,
 702                 resolveSignalServiceAddress(targetAuthorRecipientId),
 703                 targetSentTimestamp);
 704         final var messageBuilder = SignalServiceDataMessage.newBuilder().withReaction(reaction);
 705
 706         return sendGroupMessage(messageBuilder, groupId);
 707     }
 708
 709     public Pair<Long, List<SendMessageResult>> sendGroupMessage(
 710             SignalServiceDataMessage.Builder messageBuilder, GroupId groupId
 711     ) throws IOException, GroupNotFoundException, NotAGroupMemberException {
 712         final var g = getGroupForSending(groupId);
 713
 714         GroupUtils.setGroupContext(messageBuilder, g);
 715         messageBuilder.withExpiration(g.getMessageExpirationTime());
 716
 717         return sendMessage(messageBuilder, g.getMembersWithout(account.getSelfRecipientId()));
 718     }
 719
 720     public Pair<Long, List<SendMessageResult>> sendQuitGroupMessage(
 721             GroupId groupId, Set<String> groupAdmins
 722     ) throws GroupNotFoundException, IOException, NotAGroupMemberException, InvalidNumberException, LastGroupAdminException {
 723         var group = getGroupForUpdating(groupId);
 724         if (group instanceof GroupInfoV1) {
 725             return quitGroupV1((GroupInfoV1) group);
 726         }
 727
 728         final var newAdmins = getSignalServiceAddresses(groupAdmins);
 729         try {
 730             return quitGroupV2((GroupInfoV2) group, newAdmins);
 731         } catch (ConflictException e) {
 732             // Detected conflicting update, refreshing group and trying again
 733             group = getGroup(groupId, true);
 734             return quitGroupV2((GroupInfoV2) group, newAdmins);
 735         }
 736     }
 737
 738     private Pair<Long, List<SendMessageResult>> quitGroupV1(final GroupInfoV1 groupInfoV1) throws IOException {
 739         var group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.QUIT)
 740                 .withId(groupInfoV1.getGroupId().serialize())
 741                 .build();
 742
 743         var messageBuilder = SignalServiceDataMessage.newBuilder().asGroupMessage(group);
 744         groupInfoV1.removeMember(account.getSelfRecipientId());
 745         account.getGroupStore().updateGroup(groupInfoV1);
 746         return sendMessage(messageBuilder, groupInfoV1.getMembersWithout(account.getSelfRecipientId()));
 747     }
 748
 749     private Pair<Long, List<SendMessageResult>> quitGroupV2(
 750             final GroupInfoV2 groupInfoV2, final Set<RecipientId> newAdmins
 751     ) throws LastGroupAdminException, IOException {
 752         final var currentAdmins = groupInfoV2.getAdminMembers();
 753         newAdmins.removeAll(currentAdmins);
 754         newAdmins.retainAll(groupInfoV2.getMembers());
 755         if (currentAdmins.contains(getSelfRecipientId())
 756                 && currentAdmins.size() == 1
 757                 && groupInfoV2.getMembers().size() > 1
 758                 && newAdmins.size() == 0) {
 759             // Last admin can't leave the group, unless she's also the last member
 760             throw new LastGroupAdminException(groupInfoV2.getGroupId(), groupInfoV2.getTitle());
 761         }
 762         final var groupGroupChangePair = groupV2Helper.leaveGroup(groupInfoV2, newAdmins);
 763         groupInfoV2.setGroup(groupGroupChangePair.first(), this::resolveRecipient);
 764         var messageBuilder = getGroupUpdateMessageBuilder(groupInfoV2, groupGroupChangePair.second().toByteArray());
 765         account.getGroupStore().updateGroup(groupInfoV2);
 766         return sendMessage(messageBuilder, groupInfoV2.getMembersWithout(account.getSelfRecipientId()));
 767     }
 768
 769     public void deleteGroup(GroupId groupId) throws IOException {
 770         account.getGroupStore().deleteGroup(groupId);
 771         avatarStore.deleteGroupAvatar(groupId);
 772     }
 773
 774     public Pair<GroupId, List<SendMessageResult>> createGroup(
 775             String name, List<String> members, File avatarFile
 776     ) throws IOException, AttachmentInvalidException, InvalidNumberException {
 777         return createGroup(name, members == null ? null : getSignalServiceAddresses(members), avatarFile);
 778     }
 779
 780     private Pair<GroupId, List<SendMessageResult>> createGroup(
 781             String name, Set<RecipientId> members, File avatarFile
 782     ) throws IOException, AttachmentInvalidException {
 783         final var selfRecipientId = account.getSelfRecipientId();
 784         if (members != null && members.contains(selfRecipientId)) {
 785             members = new HashSet<>(members);
 786             members.remove(selfRecipientId);
 787         }
 788
 789         var gv2Pair = groupV2Helper.createGroup(name == null ? "" : name,
 790                 members == null ? Set.of() : members,
 791                 avatarFile);
 792
 793         SignalServiceDataMessage.Builder messageBuilder;
 794         if (gv2Pair == null) {
 795             // Failed to create v2 group, creating v1 group instead
 796             var gv1 = new GroupInfoV1(GroupIdV1.createRandom());
 797             gv1.addMembers(List.of(selfRecipientId));
 798             final var result = updateGroupV1(gv1, name, members, avatarFile);
 799             return new Pair<>(gv1.getGroupId(), result.second());
 800         }
 801
 802         final var gv2 = gv2Pair.first();
 803         final var decryptedGroup = gv2Pair.second();
 804
 805         gv2.setGroup(decryptedGroup, this::resolveRecipient);
 806         if (avatarFile != null) {
 807             avatarStore.storeGroupAvatar(gv2.getGroupId(),
 808                     outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
 809         }
 810         messageBuilder = getGroupUpdateMessageBuilder(gv2, null);
 811         account.getGroupStore().updateGroup(gv2);
 812
 813         final var result = sendMessage(messageBuilder, gv2.getMembersIncludingPendingWithout(selfRecipientId));
 814         return new Pair<>(gv2.getGroupId(), result.second());
 815     }
 816
 817     public Pair<Long, List<SendMessageResult>> updateGroup(
 818             GroupId groupId,
 819             String name,
 820             String description,
 821             List<String> members,
 822             List<String> removeMembers,
 823             List<String> admins,
 824             List<String> removeAdmins,
 825             boolean resetGroupLink,
 826             GroupLinkState groupLinkState,
 827             GroupPermission addMemberPermission,
 828             GroupPermission editDetailsPermission,
 829             File avatarFile,
 830             Integer expirationTimer
 831     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, InvalidNumberException, NotAGroupMemberException {
 832         return updateGroup(groupId,
 833                 name,
 834                 description,
 835                 members == null ? null : getSignalServiceAddresses(members),
 836                 removeMembers == null ? null : getSignalServiceAddresses(removeMembers),
 837                 admins == null ? null : getSignalServiceAddresses(admins),
 838                 removeAdmins == null ? null : getSignalServiceAddresses(removeAdmins),
 839                 resetGroupLink,
 840                 groupLinkState,
 841                 addMemberPermission,
 842                 editDetailsPermission,
 843                 avatarFile,
 844                 expirationTimer);
 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     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 862         var group = getGroupForUpdating(groupId);
 863
 864         if (group instanceof GroupInfoV2) {
 865             try {
 866                 return updateGroupV2((GroupInfoV2) group,
 867                         name,
 868                         description,
 869                         members,
 870                         removeMembers,
 871                         admins,
 872                         removeAdmins,
 873                         resetGroupLink,
 874                         groupLinkState,
 875                         addMemberPermission,
 876                         editDetailsPermission,
 877                         avatarFile,
 878                         expirationTimer);
 879             } catch (ConflictException e) {
 880                 // Detected conflicting update, refreshing group and trying again
 881                 group = getGroup(groupId, true);
 882                 return updateGroupV2((GroupInfoV2) group,
 883                         name,
 884                         description,
 885                         members,
 886                         removeMembers,
 887                         admins,
 888                         removeAdmins,
 889                         resetGroupLink,
 890                         groupLinkState,
 891                         addMemberPermission,
 892                         editDetailsPermission,
 893                         avatarFile,
 894                         expirationTimer);
 895             }
 896         }
 897
 898         final var gv1 = (GroupInfoV1) group;
 899         final var result = updateGroupV1(gv1, name, members, avatarFile);
 900         if (expirationTimer != null) {
 901             setExpirationTimer(gv1, expirationTimer);
 902         }
 903         return result;
 904     }
 905
 906     private Pair<Long, List<SendMessageResult>> updateGroupV1(
 907             final GroupInfoV1 gv1, final String name, final Set<RecipientId> members, final File avatarFile
 908     ) throws IOException, AttachmentInvalidException {
 909         updateGroupV1Details(gv1, name, members, avatarFile);
 910         var messageBuilder = getGroupUpdateMessageBuilder(gv1);
 911
 912         account.getGroupStore().updateGroup(gv1);
 913
 914         return sendMessage(messageBuilder, gv1.getMembersIncludingPendingWithout(account.getSelfRecipientId()));
 915     }
 916
 917     private void updateGroupV1Details(
 918             final GroupInfoV1 g, final String name, final Collection<RecipientId> members, final File avatarFile
 919     ) throws IOException {
 920         if (name != null) {
 921             g.name = name;
 922         }
 923
 924         if (members != null) {
 925             final var newMemberAddresses = members.stream()
 926                     .filter(member -> !g.isMember(member))
 927                     .map(this::resolveSignalServiceAddress)
 928                     .collect(Collectors.toList());
 929             final var newE164Members = new HashSet<String>();
 930             for (var member : newMemberAddresses) {
 931                 if (!member.getNumber().isPresent()) {
 932                     continue;
 933                 }
 934                 newE164Members.add(member.getNumber().get());
 935             }
 936
 937             final var registeredUsers = getRegisteredUsers(newE164Members);
 938             if (registeredUsers.size() != newE164Members.size()) {
 939                 // Some of the new members are not registered on Signal
 940                 newE164Members.removeAll(registeredUsers.keySet());
 941                 throw new IOException("Failed to add members "
 942                         + String.join(", ", newE164Members)
 943                         + " to group: Not registered on Signal");
 944             }
 945
 946             g.addMembers(members);
 947         }
 948
 949         if (avatarFile != null) {
 950             avatarStore.storeGroupAvatar(g.getGroupId(),
 951                     outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
 952         }
 953     }
 954
 955     private Pair<Long, List<SendMessageResult>> updateGroupV2(
 956             final GroupInfoV2 group,
 957             final String name,
 958             final String description,
 959             final Set<RecipientId> members,
 960             final Set<RecipientId> removeMembers,
 961             final Set<RecipientId> admins,
 962             final Set<RecipientId> removeAdmins,
 963             final boolean resetGroupLink,
 964             final GroupLinkState groupLinkState,
 965             final GroupPermission addMemberPermission,
 966             final GroupPermission editDetailsPermission,
 967             final File avatarFile,
 968             Integer expirationTimer
 969     ) throws IOException {
 970         Pair<Long, List<SendMessageResult>> result = null;
 971         if (group.isPendingMember(account.getSelfRecipientId())) {
 972             var groupGroupChangePair = groupV2Helper.acceptInvite(group);
 973             result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
 974         }
 975
 976         if (members != null) {
 977             final var newMembers = new HashSet<>(members);
 978             newMembers.removeAll(group.getMembers());
 979             if (newMembers.size() > 0) {
 980                 var groupGroupChangePair = groupV2Helper.addMembers(group, newMembers);
 981                 result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
 982             }
 983         }
 984
 985         if (removeMembers != null) {
 986             var existingRemoveMembers = new HashSet<>(removeMembers);
 987             existingRemoveMembers.retainAll(group.getMembers());
 988             existingRemoveMembers.remove(getSelfRecipientId());// self can be removed with sendQuitGroupMessage
 989             if (existingRemoveMembers.size() > 0) {
 990                 var groupGroupChangePair = groupV2Helper.removeMembers(group, existingRemoveMembers);
 991                 result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
 992             }
 993
 994             var pendingRemoveMembers = new HashSet<>(removeMembers);
 995             pendingRemoveMembers.retainAll(group.getPendingMembers());
 996             if (pendingRemoveMembers.size() > 0) {
 997                 var groupGroupChangePair = groupV2Helper.revokeInvitedMembers(group, pendingRemoveMembers);
 998                 result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
 999             }
1000         }
1001
1002         if (admins != null) {
1003             final var newAdmins = new HashSet<>(admins);
1004             newAdmins.retainAll(group.getMembers());
1005             newAdmins.removeAll(group.getAdminMembers());
1006             if (newAdmins.size() > 0) {
1007                 for (var admin : newAdmins) {
1008                     var groupGroupChangePair = groupV2Helper.setMemberAdmin(group, admin, true);
1009                     result = sendUpdateGroupV2Message(group,
1010                             groupGroupChangePair.first(),
1011                             groupGroupChangePair.second());
1012                 }
1013             }
1014         }
1015
1016         if (removeAdmins != null) {
1017             final var existingRemoveAdmins = new HashSet<>(removeAdmins);
1018             existingRemoveAdmins.retainAll(group.getAdminMembers());
1019             if (existingRemoveAdmins.size() > 0) {
1020                 for (var admin : existingRemoveAdmins) {
1021                     var groupGroupChangePair = groupV2Helper.setMemberAdmin(group, admin, false);
1022                     result = sendUpdateGroupV2Message(group,
1023                             groupGroupChangePair.first(),
1024                             groupGroupChangePair.second());
1025                 }
1026             }
1027         }
1028
1029         if (resetGroupLink) {
1030             var groupGroupChangePair = groupV2Helper.resetGroupLinkPassword(group);
1031             result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1032         }
1033
1034         if (groupLinkState != null) {
1035             var groupGroupChangePair = groupV2Helper.setGroupLinkState(group, groupLinkState);
1036             result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1037         }
1038
1039         if (addMemberPermission != null) {
1040             var groupGroupChangePair = groupV2Helper.setAddMemberPermission(group, addMemberPermission);
1041             result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1042         }
1043
1044         if (editDetailsPermission != null) {
1045             var groupGroupChangePair = groupV2Helper.setEditDetailsPermission(group, editDetailsPermission);
1046             result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1047         }
1048
1049         if (expirationTimer != null) {
1050             var groupGroupChangePair = groupV2Helper.setMessageExpirationTimer(group, expirationTimer);
1051             result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1052         }
1053
1054         if (name != null || description != null || avatarFile != null) {
1055             var groupGroupChangePair = groupV2Helper.updateGroup(group, name, description, avatarFile);
1056             if (avatarFile != null) {
1057                 avatarStore.storeGroupAvatar(group.getGroupId(),
1058                         outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
1059             }
1060             result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1061         }
1062
1063         return result;
1064     }
1065
1066     public Pair<GroupId, List<SendMessageResult>> joinGroup(
1067             GroupInviteLinkUrl inviteLinkUrl
1068     ) throws IOException, GroupLinkNotActiveException {
1069         final var groupJoinInfo = groupV2Helper.getDecryptedGroupJoinInfo(inviteLinkUrl.getGroupMasterKey(),
1070                 inviteLinkUrl.getPassword());
1071         final var groupChange = groupV2Helper.joinGroup(inviteLinkUrl.getGroupMasterKey(),
1072                 inviteLinkUrl.getPassword(),
1073                 groupJoinInfo);
1074         final var group = getOrMigrateGroup(inviteLinkUrl.getGroupMasterKey(),
1075                 groupJoinInfo.getRevision() + 1,
1076                 groupChange.toByteArray());
1077
1078         if (group.getGroup() == null) {
1079             // Only requested member, can't send update to group members
1080             return new Pair<>(group.getGroupId(), List.of());
1081         }
1082
1083         final var result = sendUpdateGroupV2Message(group, group.getGroup(), groupChange);
1084
1085         return new Pair<>(group.getGroupId(), result.second());
1086     }
1087
1088     private Pair<Long, List<SendMessageResult>> sendUpdateGroupV2Message(
1089             GroupInfoV2 group, DecryptedGroup newDecryptedGroup, GroupChange groupChange
1090     ) throws IOException {
1091         final var selfRecipientId = account.getSelfRecipientId();
1092         final var members = group.getMembersIncludingPendingWithout(selfRecipientId);
1093         group.setGroup(newDecryptedGroup, this::resolveRecipient);
1094         members.addAll(group.getMembersIncludingPendingWithout(selfRecipientId));
1095
1096         final var messageBuilder = getGroupUpdateMessageBuilder(group, groupChange.toByteArray());
1097         account.getGroupStore().updateGroup(group);
1098         return sendMessage(messageBuilder, members);
1099     }
1100
1101     private static int currentTimeDays() {
1102         return (int) TimeUnit.MILLISECONDS.toDays(System.currentTimeMillis());
1103     }
1104
1105     private GroupsV2AuthorizationString getGroupAuthForToday(
1106             final GroupSecretParams groupSecretParams
1107     ) throws IOException {
1108         final var today = currentTimeDays();
1109         // Returns credentials for the next 7 days
1110         final var credentials = dependencies.getGroupsV2Api().getCredentials(today);
1111         // TODO cache credentials until they expire
1112         var authCredentialResponse = credentials.get(today);
1113         try {
1114             return dependencies.getGroupsV2Api()
1115                     .getGroupsV2AuthorizationString(account.getUuid(),
1116                             today,
1117                             groupSecretParams,
1118                             authCredentialResponse);
1119         } catch (VerificationFailedException e) {
1120             throw new IOException(e);
1121         }
1122     }
1123
1124     Pair<Long, List<SendMessageResult>> sendGroupInfoMessage(
1125             GroupIdV1 groupId, SignalServiceAddress recipient
1126     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, AttachmentInvalidException {
1127         GroupInfoV1 g;
1128         var group = getGroupForSending(groupId);
1129         if (!(group instanceof GroupInfoV1)) {
1130             throw new RuntimeException("Received an invalid group request for a v2 group!");
1131         }
1132         g = (GroupInfoV1) group;
1133
1134         final var recipientId = resolveRecipient(recipient);
1135         if (!g.isMember(recipientId)) {
1136             throw new NotAGroupMemberException(groupId, g.name);
1137         }
1138
1139         var messageBuilder = getGroupUpdateMessageBuilder(g);
1140
1141         // Send group message only to the recipient who requested it
1142         return sendMessage(messageBuilder, Set.of(recipientId));
1143     }
1144
1145     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfoV1 g) throws AttachmentInvalidException {
1146         var group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.UPDATE)
1147                 .withId(g.getGroupId().serialize())
1148                 .withName(g.name)
1149                 .withMembers(g.getMembers()
1150                         .stream()
1151                         .map(this::resolveSignalServiceAddress)
1152                         .collect(Collectors.toList()));
1153
1154         try {
1155             final var attachment = createGroupAvatarAttachment(g.getGroupId());
1156             if (attachment.isPresent()) {
1157                 group.withAvatar(attachment.get());
1158             }
1159         } catch (IOException e) {
1160             throw new AttachmentInvalidException(g.getGroupId().toBase64(), e);
1161         }
1162
1163         return SignalServiceDataMessage.newBuilder()
1164                 .asGroupMessage(group.build())
1165                 .withExpiration(g.getMessageExpirationTime());
1166     }
1167
1168     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfoV2 g, byte[] signedGroupChange) {
1169         var group = SignalServiceGroupV2.newBuilder(g.getMasterKey())
1170                 .withRevision(g.getGroup().getRevision())
1171                 .withSignedGroupChange(signedGroupChange);
1172         return SignalServiceDataMessage.newBuilder()
1173                 .asGroupMessage(group.build())
1174                 .withExpiration(g.getMessageExpirationTime());
1175     }
1176
1177     Pair<Long, List<SendMessageResult>> sendGroupInfoRequest(
1178             GroupIdV1 groupId, SignalServiceAddress recipient
1179     ) throws IOException {
1180         var group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.REQUEST_INFO).withId(groupId.serialize());
1181
1182         var messageBuilder = SignalServiceDataMessage.newBuilder().asGroupMessage(group.build());
1183
1184         // Send group info request message to the recipient who sent us a message with this groupId
1185         return sendMessage(messageBuilder, Set.of(resolveRecipient(recipient)));
1186     }
1187
1188     void sendReceipt(
1189             SignalServiceAddress remoteAddress, long messageId
1190     ) throws IOException, UntrustedIdentityException {
1191         var receiptMessage = new SignalServiceReceiptMessage(SignalServiceReceiptMessage.Type.DELIVERY,
1192                 List.of(messageId),
1193                 System.currentTimeMillis());
1194
1195         dependencies.getMessageSender()
1196                 .sendReceipt(remoteAddress,
1197                         unidentifiedAccessHelper.getAccessFor(resolveRecipient(remoteAddress)),
1198                         receiptMessage);
1199     }
1200
1201     public Pair<Long, List<SendMessageResult>> sendMessage(
1202             String messageText, List<String> attachments, List<String> recipients
1203     ) throws IOException, AttachmentInvalidException, InvalidNumberException {
1204         final var messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
1205         if (attachments != null) {
1206             var attachmentStreams = AttachmentUtils.getSignalServiceAttachments(attachments);
1207
1208             // Upload attachments here, so we only upload once even for multiple recipients
1209             var messageSender = dependencies.getMessageSender();
1210             var attachmentPointers = new ArrayList<SignalServiceAttachment>(attachmentStreams.size());
1211             for (var attachment : attachmentStreams) {
1212                 if (attachment.isStream()) {
1213                     attachmentPointers.add(messageSender.uploadAttachment(attachment.asStream()));
1214                 } else if (attachment.isPointer()) {
1215                     attachmentPointers.add(attachment.asPointer());
1216                 }
1217             }
1218
1219             messageBuilder.withAttachments(attachmentPointers);
1220         }
1221         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
1222     }
1223
1224     public Pair<Long, SendMessageResult> sendSelfMessage(
1225             String messageText, List<String> attachments
1226     ) throws IOException, AttachmentInvalidException {
1227         final var messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
1228         if (attachments != null) {
1229             messageBuilder.withAttachments(AttachmentUtils.getSignalServiceAttachments(attachments));
1230         }
1231         return sendSelfMessage(messageBuilder);
1232     }
1233
1234     public Pair<Long, List<SendMessageResult>> sendRemoteDeleteMessage(
1235             long targetSentTimestamp, List<String> recipients
1236     ) throws IOException, InvalidNumberException {
1237         var delete = new SignalServiceDataMessage.RemoteDelete(targetSentTimestamp);
1238         final var messageBuilder = SignalServiceDataMessage.newBuilder().withRemoteDelete(delete);
1239         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
1240     }
1241
1242     public Pair<Long, List<SendMessageResult>> sendGroupRemoteDeleteMessage(
1243             long targetSentTimestamp, GroupId groupId
1244     ) throws IOException, NotAGroupMemberException, GroupNotFoundException {
1245         var delete = new SignalServiceDataMessage.RemoteDelete(targetSentTimestamp);
1246         final var messageBuilder = SignalServiceDataMessage.newBuilder().withRemoteDelete(delete);
1247         return sendGroupMessage(messageBuilder, groupId);
1248     }
1249
1250     public Pair<Long, List<SendMessageResult>> sendMessageReaction(
1251             String emoji, boolean remove, String targetAuthor, long targetSentTimestamp, List<String> recipients
1252     ) throws IOException, InvalidNumberException {
1253         var targetAuthorRecipientId = canonicalizeAndResolveRecipient(targetAuthor);
1254         var reaction = new SignalServiceDataMessage.Reaction(emoji,
1255                 remove,
1256                 resolveSignalServiceAddress(targetAuthorRecipientId),
1257                 targetSentTimestamp);
1258         final var messageBuilder = SignalServiceDataMessage.newBuilder().withReaction(reaction);
1259         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
1260     }
1261
1262     public Pair<Long, List<SendMessageResult>> sendEndSessionMessage(List<String> recipients) throws IOException, InvalidNumberException {
1263         var messageBuilder = SignalServiceDataMessage.newBuilder().asEndSessionMessage();
1264
1265         final var signalServiceAddresses = getSignalServiceAddresses(recipients);
1266         try {
1267             return sendMessage(messageBuilder, signalServiceAddresses);
1268         } catch (Exception e) {
1269             for (var address : signalServiceAddresses) {
1270                 handleEndSession(address);
1271             }
1272             throw e;
1273         }
1274     }
1275
1276     void renewSession(RecipientId recipientId) throws IOException {
1277         account.getSessionStore().archiveSessions(recipientId);
1278         if (!recipientId.equals(getSelfRecipientId())) {
1279             sendNullMessage(recipientId);
1280         }
1281     }
1282
1283     public void setContactName(String number, String name) throws InvalidNumberException, NotMasterDeviceException {
1284         if (!account.isMasterDevice()) {
1285             throw new NotMasterDeviceException();
1286         }
1287         final var recipientId = canonicalizeAndResolveRecipient(number);
1288         var contact = account.getContactStore().getContact(recipientId);
1289         final var builder = contact == null ? Contact.newBuilder() : Contact.newBuilder(contact);
1290         account.getContactStore().storeContact(recipientId, builder.withName(name).build());
1291     }
1292
1293     public void setContactBlocked(
1294             String number, boolean blocked
1295     ) throws InvalidNumberException, NotMasterDeviceException {
1296         if (!account.isMasterDevice()) {
1297             throw new NotMasterDeviceException();
1298         }
1299         setContactBlocked(canonicalizeAndResolveRecipient(number), blocked);
1300     }
1301
1302     private void setContactBlocked(RecipientId recipientId, boolean blocked) {
1303         var contact = account.getContactStore().getContact(recipientId);
1304         final var builder = contact == null ? Contact.newBuilder() : Contact.newBuilder(contact);
1305         account.getContactStore().storeContact(recipientId, builder.withBlocked(blocked).build());
1306     }
1307
1308     public void setGroupBlocked(final GroupId groupId, final boolean blocked) throws GroupNotFoundException {
1309         var group = getGroup(groupId);
1310         if (group == null) {
1311             throw new GroupNotFoundException(groupId);
1312         }
1313
1314         group.setBlocked(blocked);
1315         account.getGroupStore().updateGroup(group);
1316     }
1317
1318     private void setExpirationTimer(RecipientId recipientId, int messageExpirationTimer) {
1319         var contact = account.getContactStore().getContact(recipientId);
1320         if (contact != null && contact.getMessageExpirationTime() == messageExpirationTimer) {
1321             return;
1322         }
1323         final var builder = contact == null ? Contact.newBuilder() : Contact.newBuilder(contact);
1324         account.getContactStore()
1325                 .storeContact(recipientId, builder.withMessageExpirationTime(messageExpirationTimer).build());
1326     }
1327
1328     private void sendExpirationTimerUpdate(RecipientId recipientId) throws IOException {
1329         final var messageBuilder = SignalServiceDataMessage.newBuilder().asExpirationUpdate();
1330         sendMessage(messageBuilder, Set.of(recipientId));
1331     }
1332
1333     /**
1334      * Change the expiration timer for a contact
1335      */
1336     public void setExpirationTimer(
1337             String number, int messageExpirationTimer
1338     ) throws IOException, InvalidNumberException {
1339         var recipientId = canonicalizeAndResolveRecipient(number);
1340         setExpirationTimer(recipientId, messageExpirationTimer);
1341         sendExpirationTimerUpdate(recipientId);
1342     }
1343
1344     /**
1345      * Change the expiration timer for a group
1346      */
1347     private void setExpirationTimer(
1348             GroupInfoV1 groupInfoV1, int messageExpirationTimer
1349     ) throws NotAGroupMemberException, GroupNotFoundException, IOException {
1350         groupInfoV1.messageExpirationTime = messageExpirationTimer;
1351         account.getGroupStore().updateGroup(groupInfoV1);
1352         sendExpirationTimerUpdate(groupInfoV1.getGroupId());
1353     }
1354
1355     private void sendExpirationTimerUpdate(GroupIdV1 groupId) throws IOException, NotAGroupMemberException, GroupNotFoundException {
1356         final var messageBuilder = SignalServiceDataMessage.newBuilder().asExpirationUpdate();
1357         sendGroupMessage(messageBuilder, groupId);
1358     }
1359
1360     /**
1361      * Upload the sticker pack from path.
1362      *
1363      * @param path Path can be a path to a manifest.json file or to a zip file that contains a manifest.json file
1364      * @return if successful, returns the URL to install the sticker pack in the signal app
1365      */
1366     public String uploadStickerPack(File path) throws IOException, StickerPackInvalidException {
1367         var manifest = StickerUtils.getSignalServiceStickerManifestUpload(path);
1368
1369         var messageSender = dependencies.getMessageSender();
1370
1371         var packKey = KeyUtils.createStickerUploadKey();
1372         var packIdString = messageSender.uploadStickerManifest(manifest, packKey);
1373         var packId = StickerPackId.deserialize(Hex.fromStringCondensed(packIdString));
1374
1375         var sticker = new Sticker(packId, packKey);
1376         account.getStickerStore().updateSticker(sticker);
1377
1378         try {
1379             return new URI("https",
1380                     "signal.art",
1381                     "/addstickers/",
1382                     "pack_id="
1383                             + URLEncoder.encode(Hex.toStringCondensed(packId.serialize()), StandardCharsets.UTF_8)
1384                             + "&pack_key="
1385                             + URLEncoder.encode(Hex.toStringCondensed(packKey), StandardCharsets.UTF_8)).toString();
1386         } catch (URISyntaxException e) {
1387             throw new AssertionError(e);
1388         }
1389     }
1390
1391     public void requestAllSyncData() throws IOException {
1392         requestSyncGroups();
1393         requestSyncContacts();
1394         requestSyncBlocked();
1395         requestSyncConfiguration();
1396         requestSyncKeys();
1397     }
1398
1399     private void requestSyncGroups() throws IOException {
1400         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1401                 .setType(SignalServiceProtos.SyncMessage.Request.Type.GROUPS)
1402                 .build();
1403         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1404         try {
1405             sendSyncMessage(message);
1406         } catch (UntrustedIdentityException e) {
1407             throw new AssertionError(e);
1408         }
1409     }
1410
1411     private void requestSyncContacts() throws IOException {
1412         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1413                 .setType(SignalServiceProtos.SyncMessage.Request.Type.CONTACTS)
1414                 .build();
1415         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1416         try {
1417             sendSyncMessage(message);
1418         } catch (UntrustedIdentityException e) {
1419             throw new AssertionError(e);
1420         }
1421     }
1422
1423     private void requestSyncBlocked() throws IOException {
1424         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1425                 .setType(SignalServiceProtos.SyncMessage.Request.Type.BLOCKED)
1426                 .build();
1427         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1428         try {
1429             sendSyncMessage(message);
1430         } catch (UntrustedIdentityException e) {
1431             throw new AssertionError(e);
1432         }
1433     }
1434
1435     private void requestSyncConfiguration() throws IOException {
1436         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1437                 .setType(SignalServiceProtos.SyncMessage.Request.Type.CONFIGURATION)
1438                 .build();
1439         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1440         try {
1441             sendSyncMessage(message);
1442         } catch (UntrustedIdentityException e) {
1443             throw new AssertionError(e);
1444         }
1445     }
1446
1447     private void requestSyncKeys() throws IOException {
1448         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1449                 .setType(SignalServiceProtos.SyncMessage.Request.Type.KEYS)
1450                 .build();
1451         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1452         try {
1453             sendSyncMessage(message);
1454         } catch (UntrustedIdentityException e) {
1455             throw new AssertionError(e);
1456         }
1457     }
1458
1459     private byte[] getSenderCertificate() {
1460         byte[] certificate;
1461         try {
1462             if (account.isPhoneNumberShared()) {
1463                 certificate = dependencies.getAccountManager().getSenderCertificate();
1464             } else {
1465                 certificate = dependencies.getAccountManager().getSenderCertificateForPhoneNumberPrivacy();
1466             }
1467         } catch (IOException e) {
1468             logger.warn("Failed to get sender certificate, ignoring: {}", e.getMessage());
1469             return null;
1470         }
1471         // TODO cache for a day
1472         return certificate;
1473     }
1474
1475     private void sendSyncMessage(SignalServiceSyncMessage message) throws IOException, UntrustedIdentityException {
1476         var messageSender = dependencies.getMessageSender();
1477         messageSender.sendSyncMessage(message, unidentifiedAccessHelper.getAccessForSync());
1478     }
1479
1480     private Set<RecipientId> getSignalServiceAddresses(Collection<String> numbers) throws InvalidNumberException {
1481         final var signalServiceAddresses = new HashSet<SignalServiceAddress>(numbers.size());
1482         final var addressesMissingUuid = new HashSet<SignalServiceAddress>();
1483
1484         for (var number : numbers) {
1485             final var resolvedAddress = resolveSignalServiceAddress(canonicalizeAndResolveRecipient(number));
1486             if (resolvedAddress.getUuid().isPresent()) {
1487                 signalServiceAddresses.add(resolvedAddress);
1488             } else {
1489                 addressesMissingUuid.add(resolvedAddress);
1490             }
1491         }
1492
1493         final var numbersMissingUuid = addressesMissingUuid.stream()
1494                 .map(a -> a.getNumber().get())
1495                 .collect(Collectors.toSet());
1496         Map<String, UUID> registeredUsers;
1497         try {
1498             registeredUsers = getRegisteredUsers(numbersMissingUuid);
1499         } catch (IOException e) {
1500             logger.warn("Failed to resolve uuids from server, ignoring: {}", e.getMessage());
1501             registeredUsers = Map.of();
1502         }
1503
1504         for (var address : addressesMissingUuid) {
1505             final var number = address.getNumber().get();
1506             if (registeredUsers.containsKey(number)) {
1507                 final var newAddress = resolveSignalServiceAddress(resolveRecipientTrusted(new SignalServiceAddress(
1508                         registeredUsers.get(number),
1509                         number)));
1510                 signalServiceAddresses.add(newAddress);
1511             } else {
1512                 signalServiceAddresses.add(address);
1513             }
1514         }
1515
1516         return signalServiceAddresses.stream().map(this::resolveRecipient).collect(Collectors.toSet());
1517     }
1518
1519     private RecipientId refreshRegisteredUser(RecipientId recipientId) throws IOException {
1520         final var address = resolveSignalServiceAddress(recipientId);
1521         if (!address.getNumber().isPresent()) {
1522             return recipientId;
1523         }
1524         final var number = address.getNumber().get();
1525         final var uuidMap = getRegisteredUsers(Set.of(number));
1526         return resolveRecipientTrusted(new SignalServiceAddress(uuidMap.getOrDefault(number, null), number));
1527     }
1528
1529     private Map<String, UUID> getRegisteredUsers(final Set<String> numbers) throws IOException {
1530         try {
1531             return dependencies.getAccountManager()
1532                     .getRegisteredUsers(ServiceConfig.getIasKeyStore(),
1533                             numbers,
1534                             serviceEnvironmentConfig.getCdsMrenclave());
1535         } catch (Quote.InvalidQuoteFormatException | UnauthenticatedQuoteException | SignatureException | UnauthenticatedResponseException | InvalidKeyException e) {
1536             throw new IOException(e);
1537         }
1538     }
1539
1540     public void sendTypingMessage(
1541             TypingAction action, Set<String> recipients
1542     ) throws IOException, UntrustedIdentityException, InvalidNumberException {
1543         sendTypingMessageInternal(action, getSignalServiceAddresses(recipients));
1544     }
1545
1546     private void sendTypingMessageInternal(
1547             TypingAction action, Set<RecipientId> recipientIds
1548     ) throws IOException, UntrustedIdentityException {
1549         final var timestamp = System.currentTimeMillis();
1550         var message = new SignalServiceTypingMessage(action.toSignalService(), timestamp, Optional.absent());
1551         var messageSender = dependencies.getMessageSender();
1552         for (var recipientId : recipientIds) {
1553             final var address = resolveSignalServiceAddress(recipientId);
1554             messageSender.sendTyping(address, unidentifiedAccessHelper.getAccessFor(recipientId), message);
1555         }
1556     }
1557
1558     public void sendGroupTypingMessage(
1559             TypingAction action, GroupId groupId
1560     ) throws IOException, NotAGroupMemberException, GroupNotFoundException {
1561         final var timestamp = System.currentTimeMillis();
1562         final var g = getGroupForSending(groupId);
1563         final var message = new SignalServiceTypingMessage(action.toSignalService(),
1564                 timestamp,
1565                 Optional.of(groupId.serialize()));
1566         final var messageSender = dependencies.getMessageSender();
1567         final var recipientIdList = new ArrayList<>(g.getMembersWithout(account.getSelfRecipientId()));
1568         final var addresses = recipientIdList.stream()
1569                 .map(this::resolveSignalServiceAddress)
1570                 .collect(Collectors.toList());
1571         messageSender.sendTyping(addresses, unidentifiedAccessHelper.getAccessFor(recipientIdList), message, null);
1572     }
1573
1574     private Pair<Long, List<SendMessageResult>> sendMessage(
1575             SignalServiceDataMessage.Builder messageBuilder, Set<RecipientId> recipientIds
1576     ) throws IOException {
1577         final var timestamp = System.currentTimeMillis();
1578         messageBuilder.withTimestamp(timestamp);
1579
1580         SignalServiceDataMessage message = null;
1581         try {
1582             message = messageBuilder.build();
1583             if (message.getGroupContext().isPresent()) {
1584                 try {
1585                     var messageSender = dependencies.getMessageSender();
1586                     final var isRecipientUpdate = false;
1587                     final var recipientIdList = new ArrayList<>(recipientIds);
1588                     final var addresses = recipientIdList.stream()
1589                             .map(this::resolveSignalServiceAddress)
1590                             .collect(Collectors.toList());
1591                     var result = messageSender.sendDataMessage(addresses,
1592                             unidentifiedAccessHelper.getAccessFor(recipientIdList),
1593                             isRecipientUpdate,
1594                             ContentHint.DEFAULT,
1595                             message,
1596                             sendResult -> logger.trace("Partial message send result: {}", sendResult.isSuccess()),
1597                             () -> false);
1598
1599                     for (var r : result) {
1600                         if (r.getIdentityFailure() != null) {
1601                             final var recipientId = resolveRecipient(r.getAddress());
1602                             final var newIdentity = account.getIdentityKeyStore()
1603                                     .saveIdentity(recipientId, r.getIdentityFailure().getIdentityKey(), new Date());
1604                             if (newIdentity) {
1605                                 account.getSessionStore().archiveSessions(recipientId);
1606                             }
1607                         }
1608                     }
1609
1610                     return new Pair<>(timestamp, result);
1611                 } catch (UntrustedIdentityException e) {
1612                     return new Pair<>(timestamp, List.of());
1613                 }
1614             } else {
1615                 // Send to all individually, so sync messages are sent correctly
1616                 messageBuilder.withProfileKey(account.getProfileKey().serialize());
1617                 var results = new ArrayList<SendMessageResult>(recipientIds.size());
1618                 for (var recipientId : recipientIds) {
1619                     final var contact = account.getContactStore().getContact(recipientId);
1620                     final var expirationTime = contact != null ? contact.getMessageExpirationTime() : 0;
1621                     messageBuilder.withExpiration(expirationTime);
1622                     message = messageBuilder.build();
1623                     results.add(sendMessage(recipientId, message));
1624                 }
1625                 return new Pair<>(timestamp, results);
1626             }
1627         } finally {
1628             if (message != null && message.isEndSession()) {
1629                 for (var recipient : recipientIds) {
1630                     handleEndSession(recipient);
1631                 }
1632             }
1633         }
1634     }
1635
1636     private Pair<Long, SendMessageResult> sendSelfMessage(
1637             SignalServiceDataMessage.Builder messageBuilder
1638     ) throws IOException {
1639         final var timestamp = System.currentTimeMillis();
1640         messageBuilder.withTimestamp(timestamp);
1641         final var recipientId = account.getSelfRecipientId();
1642
1643         final var contact = account.getContactStore().getContact(recipientId);
1644         final var expirationTime = contact != null ? contact.getMessageExpirationTime() : 0;
1645         messageBuilder.withExpiration(expirationTime);
1646
1647         var message = messageBuilder.build();
1648         final var result = sendSelfMessage(message);
1649         return new Pair<>(timestamp, result);
1650     }
1651
1652     private SendMessageResult sendSelfMessage(SignalServiceDataMessage message) throws IOException {
1653         var messageSender = dependencies.getMessageSender();
1654
1655         var recipientId = account.getSelfRecipientId();
1656
1657         final var unidentifiedAccess = unidentifiedAccessHelper.getAccessFor(recipientId);
1658         var recipient = resolveSignalServiceAddress(recipientId);
1659         var transcript = new SentTranscriptMessage(Optional.of(recipient),
1660                 message.getTimestamp(),
1661                 message,
1662                 message.getExpiresInSeconds(),
1663                 Map.of(recipient, unidentifiedAccess.isPresent()),
1664                 false);
1665         var syncMessage = SignalServiceSyncMessage.forSentTranscript(transcript);
1666
1667         try {
1668             return messageSender.sendSyncMessage(syncMessage, unidentifiedAccess);
1669         } catch (UntrustedIdentityException e) {
1670             return SendMessageResult.identityFailure(recipient, e.getIdentityKey());
1671         }
1672     }
1673
1674     private SendMessageResult sendMessage(
1675             RecipientId recipientId, SignalServiceDataMessage message
1676     ) throws IOException {
1677         var messageSender = dependencies.getMessageSender();
1678
1679         final var address = resolveSignalServiceAddress(recipientId);
1680         try {
1681             try {
1682                 return messageSender.sendDataMessage(address,
1683                         unidentifiedAccessHelper.getAccessFor(recipientId),
1684                         ContentHint.DEFAULT,
1685                         message);
1686             } catch (UnregisteredUserException e) {
1687                 final var newRecipientId = refreshRegisteredUser(recipientId);
1688                 return messageSender.sendDataMessage(resolveSignalServiceAddress(newRecipientId),
1689                         unidentifiedAccessHelper.getAccessFor(newRecipientId),
1690                         ContentHint.DEFAULT,
1691                         message);
1692             }
1693         } catch (UntrustedIdentityException e) {
1694             return SendMessageResult.identityFailure(address, e.getIdentityKey());
1695         }
1696     }
1697
1698     private SendMessageResult sendNullMessage(RecipientId recipientId) throws IOException {
1699         var messageSender = dependencies.getMessageSender();
1700
1701         final var address = resolveSignalServiceAddress(recipientId);
1702         try {
1703             try {
1704                 return messageSender.sendNullMessage(address, unidentifiedAccessHelper.getAccessFor(recipientId));
1705             } catch (UnregisteredUserException e) {
1706                 final var newRecipientId = refreshRegisteredUser(recipientId);
1707                 final var newAddress = resolveSignalServiceAddress(newRecipientId);
1708                 return messageSender.sendNullMessage(newAddress, unidentifiedAccessHelper.getAccessFor(newRecipientId));
1709             }
1710         } catch (UntrustedIdentityException e) {
1711             return SendMessageResult.identityFailure(address, e.getIdentityKey());
1712         }
1713     }
1714
1715     private SignalServiceContent decryptMessage(SignalServiceEnvelope envelope) throws InvalidMetadataMessageException, ProtocolInvalidMessageException, ProtocolDuplicateMessageException, ProtocolLegacyMessageException, ProtocolInvalidKeyIdException, InvalidMetadataVersionException, ProtocolInvalidVersionException, ProtocolNoSessionException, ProtocolInvalidKeyException, SelfSendException, UnsupportedDataMessageException, ProtocolUntrustedIdentityException, InvalidMessageStructureException {
1716         return dependencies.getCipher().decrypt(envelope);
1717     }
1718
1719     private void handleEndSession(RecipientId recipientId) {
1720         account.getSessionStore().deleteAllSessions(recipientId);
1721     }
1722
1723     private List<HandleAction> handleSignalServiceDataMessage(
1724             SignalServiceDataMessage message,
1725             boolean isSync,
1726             SignalServiceAddress source,
1727             SignalServiceAddress destination,
1728             boolean ignoreAttachments
1729     ) {
1730         var actions = new ArrayList<HandleAction>();
1731         if (message.getGroupContext().isPresent()) {
1732             if (message.getGroupContext().get().getGroupV1().isPresent()) {
1733                 var groupInfo = message.getGroupContext().get().getGroupV1().get();
1734                 var groupId = GroupId.v1(groupInfo.getGroupId());
1735                 var group = getGroup(groupId);
1736                 if (group == null || group instanceof GroupInfoV1) {
1737                     var groupV1 = (GroupInfoV1) group;
1738                     switch (groupInfo.getType()) {
1739                         case UPDATE: {
1740                             if (groupV1 == null) {
1741                                 groupV1 = new GroupInfoV1(groupId);
1742                             }
1743
1744                             if (groupInfo.getAvatar().isPresent()) {
1745                                 var avatar = groupInfo.getAvatar().get();
1746                                 downloadGroupAvatar(avatar, groupV1.getGroupId());
1747                             }
1748
1749                             if (groupInfo.getName().isPresent()) {
1750                                 groupV1.name = groupInfo.getName().get();
1751                             }
1752
1753                             if (groupInfo.getMembers().isPresent()) {
1754                                 groupV1.addMembers(groupInfo.getMembers()
1755                                         .get()
1756                                         .stream()
1757                                         .map(this::resolveRecipient)
1758                                         .collect(Collectors.toSet()));
1759                             }
1760
1761                             account.getGroupStore().updateGroup(groupV1);
1762                             break;
1763                         }
1764                         case DELIVER:
1765                             if (groupV1 == null && !isSync) {
1766                                 actions.add(new SendGroupInfoRequestAction(source, groupId));
1767                             }
1768                             break;
1769                         case QUIT: {
1770                             if (groupV1 != null) {
1771                                 groupV1.removeMember(resolveRecipient(source));
1772                                 account.getGroupStore().updateGroup(groupV1);
1773                             }
1774                             break;
1775                         }
1776                         case REQUEST_INFO:
1777                             if (groupV1 != null && !isSync) {
1778                                 actions.add(new SendGroupInfoAction(source, groupV1.getGroupId()));
1779                             }
1780                             break;
1781                     }
1782                 } else {
1783                     // Received a group v1 message for a v2 group
1784                 }
1785             }
1786             if (message.getGroupContext().get().getGroupV2().isPresent()) {
1787                 final var groupContext = message.getGroupContext().get().getGroupV2().get();
1788                 final var groupMasterKey = groupContext.getMasterKey();
1789
1790                 getOrMigrateGroup(groupMasterKey,
1791                         groupContext.getRevision(),
1792                         groupContext.hasSignedGroupChange() ? groupContext.getSignedGroupChange() : null);
1793             }
1794         }
1795
1796         final var conversationPartnerAddress = isSync ? destination : source;
1797         if (conversationPartnerAddress != null && message.isEndSession()) {
1798             handleEndSession(resolveRecipient(conversationPartnerAddress));
1799         }
1800         if (message.isExpirationUpdate() || message.getBody().isPresent()) {
1801             if (message.getGroupContext().isPresent()) {
1802                 if (message.getGroupContext().get().getGroupV1().isPresent()) {
1803                     var groupInfo = message.getGroupContext().get().getGroupV1().get();
1804                     var group = account.getGroupStore().getOrCreateGroupV1(GroupId.v1(groupInfo.getGroupId()));
1805                     if (group != null) {
1806                         if (group.messageExpirationTime != message.getExpiresInSeconds()) {
1807                             group.messageExpirationTime = message.getExpiresInSeconds();
1808                             account.getGroupStore().updateGroup(group);
1809                         }
1810                     }
1811                 } else if (message.getGroupContext().get().getGroupV2().isPresent()) {
1812                     // disappearing message timer already stored in the DecryptedGroup
1813                 }
1814             } else if (conversationPartnerAddress != null) {
1815                 setExpirationTimer(resolveRecipient(conversationPartnerAddress), message.getExpiresInSeconds());
1816             }
1817         }
1818         if (!ignoreAttachments) {
1819             if (message.getAttachments().isPresent()) {
1820                 for (var attachment : message.getAttachments().get()) {
1821                     downloadAttachment(attachment);
1822                 }
1823             }
1824             if (message.getSharedContacts().isPresent()) {
1825                 for (var contact : message.getSharedContacts().get()) {
1826                     if (contact.getAvatar().isPresent()) {
1827                         downloadAttachment(contact.getAvatar().get().getAttachment());
1828                     }
1829                 }
1830             }
1831         }
1832         if (message.getProfileKey().isPresent() && message.getProfileKey().get().length == 32) {
1833             final ProfileKey profileKey;
1834             try {
1835                 profileKey = new ProfileKey(message.getProfileKey().get());
1836             } catch (InvalidInputException e) {
1837                 throw new AssertionError(e);
1838             }
1839             if (source.matches(account.getSelfAddress())) {
1840                 this.account.setProfileKey(profileKey);
1841             }
1842             this.account.getProfileStore().storeProfileKey(resolveRecipient(source), profileKey);
1843         }
1844         if (message.getPreviews().isPresent()) {
1845             final var previews = message.getPreviews().get();
1846             for (var preview : previews) {
1847                 if (preview.getImage().isPresent()) {
1848                     downloadAttachment(preview.getImage().get());
1849                 }
1850             }
1851         }
1852         if (message.getQuote().isPresent()) {
1853             final var quote = message.getQuote().get();
1854
1855             for (var quotedAttachment : quote.getAttachments()) {
1856                 final var thumbnail = quotedAttachment.getThumbnail();
1857                 if (thumbnail != null) {
1858                     downloadAttachment(thumbnail);
1859                 }
1860             }
1861         }
1862         if (message.getSticker().isPresent()) {
1863             final var messageSticker = message.getSticker().get();
1864             final var stickerPackId = StickerPackId.deserialize(messageSticker.getPackId());
1865             var sticker = account.getStickerStore().getSticker(stickerPackId);
1866             if (sticker == null) {
1867                 sticker = new Sticker(stickerPackId, messageSticker.getPackKey());
1868                 account.getStickerStore().updateSticker(sticker);
1869             }
1870             enqueueJob(new RetrieveStickerPackJob(stickerPackId, messageSticker.getPackKey()));
1871         }
1872         return actions;
1873     }
1874
1875     private GroupInfoV2 getOrMigrateGroup(
1876             final GroupMasterKey groupMasterKey, final int revision, final byte[] signedGroupChange
1877     ) {
1878         final var groupSecretParams = GroupSecretParams.deriveFromMasterKey(groupMasterKey);
1879
1880         var groupId = GroupUtils.getGroupIdV2(groupSecretParams);
1881         var groupInfo = getGroup(groupId);
1882         final GroupInfoV2 groupInfoV2;
1883         if (groupInfo instanceof GroupInfoV1) {
1884             // Received a v2 group message for a v1 group, we need to locally migrate the group
1885             account.getGroupStore().deleteGroupV1(((GroupInfoV1) groupInfo).getGroupId());
1886             groupInfoV2 = new GroupInfoV2(groupId, groupMasterKey);
1887             logger.info("Locally migrated group {} to group v2, id: {}",
1888                     groupInfo.getGroupId().toBase64(),
1889                     groupInfoV2.getGroupId().toBase64());
1890         } else if (groupInfo instanceof GroupInfoV2) {
1891             groupInfoV2 = (GroupInfoV2) groupInfo;
1892         } else {
1893             groupInfoV2 = new GroupInfoV2(groupId, groupMasterKey);
1894         }
1895
1896         if (groupInfoV2.getGroup() == null || groupInfoV2.getGroup().getRevision() < revision) {
1897             DecryptedGroup group = null;
1898             if (signedGroupChange != null
1899                     && groupInfoV2.getGroup() != null
1900                     && groupInfoV2.getGroup().getRevision() + 1 == revision) {
1901                 group = groupV2Helper.getUpdatedDecryptedGroup(groupInfoV2.getGroup(),
1902                         signedGroupChange,
1903                         groupMasterKey);
1904             }
1905             if (group == null) {
1906                 group = groupV2Helper.getDecryptedGroup(groupSecretParams);
1907             }
1908             if (group != null) {
1909                 storeProfileKeysFromMembers(group);
1910                 final var avatar = group.getAvatar();
1911                 if (avatar != null && !avatar.isEmpty()) {
1912                     downloadGroupAvatar(groupId, groupSecretParams, avatar);
1913                 }
1914             }
1915             groupInfoV2.setGroup(group, this::resolveRecipient);
1916             account.getGroupStore().updateGroup(groupInfoV2);
1917         }
1918
1919         return groupInfoV2;
1920     }
1921
1922     private void storeProfileKeysFromMembers(final DecryptedGroup group) {
1923         for (var member : group.getMembersList()) {
1924             final var uuid = UuidUtil.parseOrThrow(member.getUuid().toByteArray());
1925             final var recipientId = account.getRecipientStore().resolveRecipient(uuid);
1926             try {
1927                 account.getProfileStore()
1928                         .storeProfileKey(recipientId, new ProfileKey(member.getProfileKey().toByteArray()));
1929             } catch (InvalidInputException ignored) {
1930             }
1931         }
1932     }
1933
1934     private void retryFailedReceivedMessages(ReceiveMessageHandler handler, boolean ignoreAttachments) {
1935         Set<HandleAction> queuedActions = new HashSet<>();
1936         for (var cachedMessage : account.getMessageCache().getCachedMessages()) {
1937             var actions = retryFailedReceivedMessage(handler, ignoreAttachments, cachedMessage);
1938             if (actions != null) {
1939                 queuedActions.addAll(actions);
1940             }
1941         }
1942         for (var action : queuedActions) {
1943             try {
1944                 action.execute(this);
1945             } catch (Throwable e) {
1946                 if (e instanceof AssertionError && e.getCause() instanceof InterruptedException) {
1947                     Thread.currentThread().interrupt();
1948                 }
1949                 logger.warn("Message action failed.", e);
1950             }
1951         }
1952     }
1953
1954     private List<HandleAction> retryFailedReceivedMessage(
1955             final ReceiveMessageHandler handler, final boolean ignoreAttachments, final CachedMessage cachedMessage
1956     ) {
1957         var envelope = cachedMessage.loadEnvelope();
1958         if (envelope == null) {
1959             return null;
1960         }
1961         SignalServiceContent content = null;
1962         List<HandleAction> actions = null;
1963         if (!envelope.isReceipt()) {
1964             try {
1965                 content = decryptMessage(envelope);
1966             } catch (ProtocolUntrustedIdentityException e) {
1967                 if (!envelope.hasSource()) {
1968                     final var identifier = e.getSender();
1969                     final var recipientId = resolveRecipient(identifier);
1970                     try {
1971                         account.getMessageCache().replaceSender(cachedMessage, recipientId);
1972                     } catch (IOException ioException) {
1973                         logger.warn("Failed to move cached message to recipient folder: {}", ioException.getMessage());
1974                     }
1975                 }
1976                 return null;
1977             } catch (Exception er) {
1978                 // All other errors are not recoverable, so delete the cached message
1979                 cachedMessage.delete();
1980                 return null;
1981             }
1982             actions = handleMessage(envelope, content, ignoreAttachments);
1983         }
1984         handler.handleMessage(envelope, content, null);
1985         cachedMessage.delete();
1986         return actions;
1987     }
1988
1989     public void receiveMessages(
1990             long timeout,
1991             TimeUnit unit,
1992             boolean returnOnTimeout,
1993             boolean ignoreAttachments,
1994             ReceiveMessageHandler handler
1995     ) throws IOException, InterruptedException {
1996         retryFailedReceivedMessages(handler, ignoreAttachments);
1997
1998         Set<HandleAction> queuedActions = null;
1999
2000         final var signalWebSocket = dependencies.getSignalWebSocket();
2001         signalWebSocket.connect();
2002
2003         var hasCaughtUpWithOldMessages = false;
2004
2005         while (!Thread.interrupted()) {
2006             SignalServiceEnvelope envelope;
2007             SignalServiceContent content = null;
2008             Exception exception = null;
2009             final CachedMessage[] cachedMessage = {null};
2010             account.setLastReceiveTimestamp(System.currentTimeMillis());
2011             logger.debug("Checking for new message from server");
2012             try {
2013                 var result = signalWebSocket.readOrEmpty(unit.toMillis(timeout), envelope1 -> {
2014                     final var recipientId = envelope1.hasSource()
2015                             ? resolveRecipient(envelope1.getSourceIdentifier())
2016                             : null;
2017                     // store message on disk, before acknowledging receipt to the server
2018                     cachedMessage[0] = account.getMessageCache().cacheMessage(envelope1, recipientId);
2019                 });
2020                 logger.debug("New message received from server");
2021                 if (result.isPresent()) {
2022                     envelope = result.get();
2023                 } else {
2024                     // Received indicator that server queue is empty
2025                     hasCaughtUpWithOldMessages = true;
2026
2027                     if (queuedActions != null) {
2028                         for (var action : queuedActions) {
2029                             try {
2030                                 action.execute(this);
2031                             } catch (Throwable e) {
2032                                 if (e instanceof AssertionError && e.getCause() instanceof InterruptedException) {
2033                                     Thread.currentThread().interrupt();
2034                                 }
2035                                 logger.warn("Message action failed.", e);
2036                             }
2037                         }
2038                         queuedActions.clear();
2039                         queuedActions = null;
2040                     }
2041
2042                     // Continue to wait another timeout for new messages
2043                     continue;
2044                 }
2045             } catch (AssertionError e) {
2046                 if (e.getCause() instanceof InterruptedException) {
2047                     throw (InterruptedException) e.getCause();
2048                 } else {
2049                     throw e;
2050                 }
2051             } catch (WebSocketUnavailableException e) {
2052                 logger.debug("Pipe unexpectedly unavailable, connecting");
2053                 signalWebSocket.connect();
2054                 continue;
2055             } catch (TimeoutException e) {
2056                 if (returnOnTimeout) return;
2057                 continue;
2058             }
2059
2060             if (envelope.hasSource()) {
2061                 // Store uuid if we don't have it already
2062                 // address/uuid in envelope is sent by server
2063                 resolveRecipientTrusted(envelope.getSourceAddress());
2064             }
2065             final var notAGroupMember = isNotAGroupMember(envelope, content);
2066             if (!envelope.isReceipt()) {
2067                 try {
2068                     content = decryptMessage(envelope);
2069                 } catch (Exception e) {
2070                     exception = e;
2071                 }
2072                 if (!envelope.hasSource() && content != null) {
2073                     // Store uuid if we don't have it already
2074                     // address/uuid is validated by unidentified sender certificate
2075                     resolveRecipientTrusted(content.getSender());
2076                 }
2077                 var actions = handleMessage(envelope, content, ignoreAttachments);
2078                 if (exception instanceof ProtocolInvalidMessageException) {
2079                     final var sender = resolveRecipient(((ProtocolInvalidMessageException) exception).getSender());
2080                     logger.debug("Received invalid message, queuing renew session action.");
2081                     actions.add(new RenewSessionAction(sender));
2082                 }
2083                 if (hasCaughtUpWithOldMessages) {
2084                     for (var action : actions) {
2085                         try {
2086                             action.execute(this);
2087                         } catch (Throwable e) {
2088                             if (e instanceof AssertionError && e.getCause() instanceof InterruptedException) {
2089                                 Thread.currentThread().interrupt();
2090                             }
2091                             logger.warn("Message action failed.", e);
2092                         }
2093                     }
2094                 } else {
2095                     if (queuedActions == null) {
2096                         queuedActions = new HashSet<>();
2097                     }
2098                     queuedActions.addAll(actions);
2099                 }
2100             }
2101             if (isMessageBlocked(envelope, content)) {
2102                 logger.info("Ignoring a message from blocked user/group: {}", envelope.getTimestamp());
2103             } else if (notAGroupMember) {
2104                 logger.info("Ignoring a message from a non group member: {}", envelope.getTimestamp());
2105             } else {
2106                 handler.handleMessage(envelope, content, exception);
2107             }
2108             if (cachedMessage[0] != null) {
2109                 if (exception instanceof ProtocolUntrustedIdentityException) {
2110                     final var identifier = ((ProtocolUntrustedIdentityException) exception).getSender();
2111                     final var recipientId = resolveRecipient(identifier);
2112                     queuedActions.add(new RetrieveProfileAction(recipientId));
2113                     if (!envelope.hasSource()) {
2114                         try {
2115                             cachedMessage[0] = account.getMessageCache().replaceSender(cachedMessage[0], recipientId);
2116                         } catch (IOException ioException) {
2117                             logger.warn("Failed to move cached message to recipient folder: {}",
2118                                     ioException.getMessage());
2119                         }
2120                     }
2121                 } else {
2122                     cachedMessage[0].delete();
2123                 }
2124             }
2125         }
2126     }
2127
2128     private boolean isMessageBlocked(
2129             SignalServiceEnvelope envelope, SignalServiceContent content
2130     ) {
2131         SignalServiceAddress source;
2132         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
2133             source = envelope.getSourceAddress();
2134         } else if (content != null) {
2135             source = content.getSender();
2136         } else {
2137             return false;
2138         }
2139         final var recipientId = resolveRecipient(source);
2140         if (isContactBlocked(recipientId)) {
2141             return true;
2142         }
2143
2144         if (content != null && content.getDataMessage().isPresent()) {
2145             var message = content.getDataMessage().get();
2146             if (message.getGroupContext().isPresent()) {
2147                 var groupId = GroupUtils.getGroupId(message.getGroupContext().get());
2148                 var group = getGroup(groupId);
2149                 if (group != null && group.isBlocked()) {
2150                     return true;
2151                 }
2152             }
2153         }
2154         return false;
2155     }
2156
2157     public boolean isContactBlocked(final String identifier) throws InvalidNumberException {
2158         final var recipientId = canonicalizeAndResolveRecipient(identifier);
2159         return isContactBlocked(recipientId);
2160     }
2161
2162     private boolean isContactBlocked(final RecipientId recipientId) {
2163         var sourceContact = account.getContactStore().getContact(recipientId);
2164         return sourceContact != null && sourceContact.isBlocked();
2165     }
2166
2167     private boolean isNotAGroupMember(
2168             SignalServiceEnvelope envelope, SignalServiceContent content
2169     ) {
2170         SignalServiceAddress source;
2171         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
2172             source = envelope.getSourceAddress();
2173         } else if (content != null) {
2174             source = content.getSender();
2175         } else {
2176             return false;
2177         }
2178
2179         if (content != null && content.getDataMessage().isPresent()) {
2180             var message = content.getDataMessage().get();
2181             if (message.getGroupContext().isPresent()) {
2182                 if (message.getGroupContext().get().getGroupV1().isPresent()) {
2183                     var groupInfo = message.getGroupContext().get().getGroupV1().get();
2184                     if (groupInfo.getType() == SignalServiceGroup.Type.QUIT) {
2185                         return false;
2186                     }
2187                 }
2188                 var groupId = GroupUtils.getGroupId(message.getGroupContext().get());
2189                 var group = getGroup(groupId);
2190                 if (group != null && !group.isMember(resolveRecipient(source))) {
2191                     return true;
2192                 }
2193             }
2194         }
2195         return false;
2196     }
2197
2198     private List<HandleAction> handleMessage(
2199             SignalServiceEnvelope envelope, SignalServiceContent content, boolean ignoreAttachments
2200     ) {
2201         var actions = new ArrayList<HandleAction>();
2202         if (content != null) {
2203             final SignalServiceAddress sender;
2204             if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
2205                 sender = envelope.getSourceAddress();
2206             } else {
2207                 sender = content.getSender();
2208             }
2209
2210             if (content.getDataMessage().isPresent()) {
2211                 var message = content.getDataMessage().get();
2212
2213                 if (content.isNeedsReceipt()) {
2214                     actions.add(new SendReceiptAction(sender, message.getTimestamp()));
2215                 }
2216
2217                 actions.addAll(handleSignalServiceDataMessage(message,
2218                         false,
2219                         sender,
2220                         account.getSelfAddress(),
2221                         ignoreAttachments));
2222             }
2223             if (content.getSyncMessage().isPresent()) {
2224                 account.setMultiDevice(true);
2225                 var syncMessage = content.getSyncMessage().get();
2226                 if (syncMessage.getSent().isPresent()) {
2227                     var message = syncMessage.getSent().get();
2228                     final var destination = message.getDestination().orNull();
2229                     actions.addAll(handleSignalServiceDataMessage(message.getMessage(),
2230                             true,
2231                             sender,
2232                             destination,
2233                             ignoreAttachments));
2234                 }
2235                 if (syncMessage.getRequest().isPresent() && account.isMasterDevice()) {
2236                     var rm = syncMessage.getRequest().get();
2237                     if (rm.isContactsRequest()) {
2238                         actions.add(SendSyncContactsAction.create());
2239                     }
2240                     if (rm.isGroupsRequest()) {
2241                         actions.add(SendSyncGroupsAction.create());
2242                     }
2243                     if (rm.isBlockedListRequest()) {
2244                         actions.add(SendSyncBlockedListAction.create());
2245                     }
2246                     // TODO Handle rm.isConfigurationRequest(); rm.isKeysRequest();
2247                 }
2248                 if (syncMessage.getGroups().isPresent()) {
2249                     File tmpFile = null;
2250                     try {
2251                         tmpFile = IOUtils.createTempFile();
2252                         final var groupsMessage = syncMessage.getGroups().get();
2253                         try (var attachmentAsStream = retrieveAttachmentAsStream(groupsMessage.asPointer(), tmpFile)) {
2254                             var s = new DeviceGroupsInputStream(attachmentAsStream);
2255                             DeviceGroup g;
2256                             while (true) {
2257                                 try {
2258                                     g = s.read();
2259                                 } catch (IOException e) {
2260                                     logger.warn("Sync groups contained invalid group, ignoring: {}", e.getMessage());
2261                                     continue;
2262                                 }
2263                                 if (g == null) {
2264                                     break;
2265                                 }
2266                                 var syncGroup = account.getGroupStore().getOrCreateGroupV1(GroupId.v1(g.getId()));
2267                                 if (syncGroup != null) {
2268                                     if (g.getName().isPresent()) {
2269                                         syncGroup.name = g.getName().get();
2270                                     }
2271                                     syncGroup.addMembers(g.getMembers()
2272                                             .stream()
2273                                             .map(this::resolveRecipient)
2274                                             .collect(Collectors.toSet()));
2275                                     if (!g.isActive()) {
2276                                         syncGroup.removeMember(account.getSelfRecipientId());
2277                                     } else {
2278                                         // Add ourself to the member set as it's marked as active
2279                                         syncGroup.addMembers(List.of(account.getSelfRecipientId()));
2280                                     }
2281                                     syncGroup.blocked = g.isBlocked();
2282                                     if (g.getColor().isPresent()) {
2283                                         syncGroup.color = g.getColor().get();
2284                                     }
2285
2286                                     if (g.getAvatar().isPresent()) {
2287                                         downloadGroupAvatar(g.getAvatar().get(), syncGroup.getGroupId());
2288                                     }
2289                                     syncGroup.archived = g.isArchived();
2290                                     account.getGroupStore().updateGroup(syncGroup);
2291                                 }
2292                             }
2293                         }
2294                     } catch (Exception e) {
2295                         logger.warn("Failed to handle received sync groups “{}”, ignoring: {}",
2296                                 tmpFile,
2297                                 e.getMessage());
2298                     } finally {
2299                         if (tmpFile != null) {
2300                             try {
2301                                 Files.delete(tmpFile.toPath());
2302                             } catch (IOException e) {
2303                                 logger.warn("Failed to delete received groups temp file “{}”, ignoring: {}",
2304                                         tmpFile,
2305                                         e.getMessage());
2306                             }
2307                         }
2308                     }
2309                 }
2310                 if (syncMessage.getBlockedList().isPresent()) {
2311                     final var blockedListMessage = syncMessage.getBlockedList().get();
2312                     for (var address : blockedListMessage.getAddresses()) {
2313                         setContactBlocked(resolveRecipient(address), true);
2314                     }
2315                     for (var groupId : blockedListMessage.getGroupIds()
2316                             .stream()
2317                             .map(GroupId::unknownVersion)
2318                             .collect(Collectors.toSet())) {
2319                         try {
2320                             setGroupBlocked(groupId, true);
2321                         } catch (GroupNotFoundException e) {
2322                             logger.warn("BlockedListMessage contained groupID that was not found in GroupStore: {}",
2323                                     groupId.toBase64());
2324                         }
2325                     }
2326                 }
2327                 if (syncMessage.getContacts().isPresent()) {
2328                     File tmpFile = null;
2329                     try {
2330                         tmpFile = IOUtils.createTempFile();
2331                         final var contactsMessage = syncMessage.getContacts().get();
2332                         try (var attachmentAsStream = retrieveAttachmentAsStream(contactsMessage.getContactsStream()
2333                                 .asPointer(), tmpFile)) {
2334                             var s = new DeviceContactsInputStream(attachmentAsStream);
2335                             DeviceContact c;
2336                             while (true) {
2337                                 try {
2338                                     c = s.read();
2339                                 } catch (IOException e) {
2340                                     logger.warn("Sync contacts contained invalid contact, ignoring: {}",
2341                                             e.getMessage());
2342                                     continue;
2343                                 }
2344                                 if (c == null) {
2345                                     break;
2346                                 }
2347                                 if (c.getAddress().matches(account.getSelfAddress()) && c.getProfileKey().isPresent()) {
2348                                     account.setProfileKey(c.getProfileKey().get());
2349                                 }
2350                                 final var recipientId = resolveRecipientTrusted(c.getAddress());
2351                                 var contact = account.getContactStore().getContact(recipientId);
2352                                 final var builder = contact == null
2353                                         ? Contact.newBuilder()
2354                                         : Contact.newBuilder(contact);
2355                                 if (c.getName().isPresent()) {
2356                                     builder.withName(c.getName().get());
2357                                 }
2358                                 if (c.getColor().isPresent()) {
2359                                     builder.withColor(c.getColor().get());
2360                                 }
2361                                 if (c.getProfileKey().isPresent()) {
2362                                     account.getProfileStore().storeProfileKey(recipientId, c.getProfileKey().get());
2363                                 }
2364                                 if (c.getVerified().isPresent()) {
2365                                     final var verifiedMessage = c.getVerified().get();
2366                                     account.getIdentityKeyStore()
2367                                             .setIdentityTrustLevel(resolveRecipientTrusted(verifiedMessage.getDestination()),
2368                                                     verifiedMessage.getIdentityKey(),
2369                                                     TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
2370                                 }
2371                                 if (c.getExpirationTimer().isPresent()) {
2372                                     builder.withMessageExpirationTime(c.getExpirationTimer().get());
2373                                 }
2374                                 builder.withBlocked(c.isBlocked());
2375                                 builder.withArchived(c.isArchived());
2376                                 account.getContactStore().storeContact(recipientId, builder.build());
2377
2378                                 if (c.getAvatar().isPresent()) {
2379                                     downloadContactAvatar(c.getAvatar().get(), c.getAddress());
2380                                 }
2381                             }
2382                         }
2383                     } catch (Exception e) {
2384                         logger.warn("Failed to handle received sync contacts “{}”, ignoring: {}",
2385                                 tmpFile,
2386                                 e.getMessage());
2387                     } finally {
2388                         if (tmpFile != null) {
2389                             try {
2390                                 Files.delete(tmpFile.toPath());
2391                             } catch (IOException e) {
2392                                 logger.warn("Failed to delete received contacts temp file “{}”, ignoring: {}",
2393                                         tmpFile,
2394                                         e.getMessage());
2395                             }
2396                         }
2397                     }
2398                 }
2399                 if (syncMessage.getVerified().isPresent()) {
2400                     final var verifiedMessage = syncMessage.getVerified().get();
2401                     account.getIdentityKeyStore()
2402                             .setIdentityTrustLevel(resolveRecipientTrusted(verifiedMessage.getDestination()),
2403                                     verifiedMessage.getIdentityKey(),
2404                                     TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
2405                 }
2406                 if (syncMessage.getStickerPackOperations().isPresent()) {
2407                     final var stickerPackOperationMessages = syncMessage.getStickerPackOperations().get();
2408                     for (var m : stickerPackOperationMessages) {
2409                         if (!m.getPackId().isPresent()) {
2410                             continue;
2411                         }
2412                         final var stickerPackId = StickerPackId.deserialize(m.getPackId().get());
2413                         final var installed = !m.getType().isPresent()
2414                                 || m.getType().get() == StickerPackOperationMessage.Type.INSTALL;
2415
2416                         var sticker = account.getStickerStore().getSticker(stickerPackId);
2417                         if (m.getPackKey().isPresent()) {
2418                             if (sticker == null) {
2419                                 sticker = new Sticker(stickerPackId, m.getPackKey().get());
2420                             }
2421                             if (installed) {
2422                                 enqueueJob(new RetrieveStickerPackJob(stickerPackId, m.getPackKey().get()));
2423                             }
2424                         }
2425
2426                         if (sticker != null) {
2427                             sticker.setInstalled(installed);
2428                             account.getStickerStore().updateSticker(sticker);
2429                         }
2430                     }
2431                 }
2432                 if (syncMessage.getFetchType().isPresent()) {
2433                     switch (syncMessage.getFetchType().get()) {
2434                         case LOCAL_PROFILE:
2435                             getRecipientProfile(account.getSelfRecipientId(), true);
2436                         case STORAGE_MANIFEST:
2437                             // TODO
2438                     }
2439                 }
2440                 if (syncMessage.getKeys().isPresent()) {
2441                     final var keysMessage = syncMessage.getKeys().get();
2442                     if (keysMessage.getStorageService().isPresent()) {
2443                         final var storageKey = keysMessage.getStorageService().get();
2444                         account.setStorageKey(storageKey);
2445                     }
2446                 }
2447                 if (syncMessage.getConfiguration().isPresent()) {
2448                     // TODO
2449                 }
2450             }
2451         }
2452         return actions;
2453     }
2454
2455     private void downloadContactAvatar(SignalServiceAttachment avatar, SignalServiceAddress address) {
2456         try {
2457             avatarStore.storeContactAvatar(address, outputStream -> retrieveAttachment(avatar, outputStream));
2458         } catch (IOException e) {
2459             logger.warn("Failed to download avatar for contact {}, ignoring: {}", address, e.getMessage());
2460         }
2461     }
2462
2463     private void downloadGroupAvatar(SignalServiceAttachment avatar, GroupId groupId) {
2464         try {
2465             avatarStore.storeGroupAvatar(groupId, outputStream -> retrieveAttachment(avatar, outputStream));
2466         } catch (IOException e) {
2467             logger.warn("Failed to download avatar for group {}, ignoring: {}", groupId.toBase64(), e.getMessage());
2468         }
2469     }
2470
2471     private void downloadGroupAvatar(GroupId groupId, GroupSecretParams groupSecretParams, String cdnKey) {
2472         try {
2473             avatarStore.storeGroupAvatar(groupId,
2474                     outputStream -> retrieveGroupV2Avatar(groupSecretParams, cdnKey, outputStream));
2475         } catch (IOException e) {
2476             logger.warn("Failed to download avatar for group {}, ignoring: {}", groupId.toBase64(), e.getMessage());
2477         }
2478     }
2479
2480     private void downloadProfileAvatar(
2481             SignalServiceAddress address, String avatarPath, ProfileKey profileKey
2482     ) {
2483         try {
2484             avatarStore.storeProfileAvatar(address,
2485                     outputStream -> retrieveProfileAvatar(avatarPath, profileKey, outputStream));
2486         } catch (Throwable e) {
2487             if (e instanceof AssertionError && e.getCause() instanceof InterruptedException) {
2488                 Thread.currentThread().interrupt();
2489             }
2490             logger.warn("Failed to download profile avatar, ignoring: {}", e.getMessage());
2491         }
2492     }
2493
2494     public File getAttachmentFile(SignalServiceAttachmentRemoteId attachmentId) {
2495         return attachmentStore.getAttachmentFile(attachmentId);
2496     }
2497
2498     private void downloadAttachment(final SignalServiceAttachment attachment) {
2499         if (!attachment.isPointer()) {
2500             logger.warn("Invalid state, can't store an attachment stream.");
2501         }
2502
2503         var pointer = attachment.asPointer();
2504         if (pointer.getPreview().isPresent()) {
2505             final var preview = pointer.getPreview().get();
2506             try {
2507                 attachmentStore.storeAttachmentPreview(pointer.getRemoteId(),
2508                         outputStream -> outputStream.write(preview, 0, preview.length));
2509             } catch (IOException e) {
2510                 logger.warn("Failed to download attachment preview, ignoring: {}", e.getMessage());
2511             }
2512         }
2513
2514         try {
2515             attachmentStore.storeAttachment(pointer.getRemoteId(),
2516                     outputStream -> retrieveAttachmentPointer(pointer, outputStream));
2517         } catch (IOException e) {
2518             logger.warn("Failed to download attachment ({}), ignoring: {}", pointer.getRemoteId(), e.getMessage());
2519         }
2520     }
2521
2522     private void retrieveGroupV2Avatar(
2523             GroupSecretParams groupSecretParams, String cdnKey, OutputStream outputStream
2524     ) throws IOException {
2525         var groupOperations = dependencies.getGroupsV2Operations().forGroup(groupSecretParams);
2526
2527         var tmpFile = IOUtils.createTempFile();
2528         try (InputStream input = dependencies.getMessageReceiver()
2529                 .retrieveGroupsV2ProfileAvatar(cdnKey, tmpFile, ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
2530             var encryptedData = IOUtils.readFully(input);
2531
2532             var decryptedData = groupOperations.decryptAvatar(encryptedData);
2533             outputStream.write(decryptedData);
2534         } finally {
2535             try {
2536                 Files.delete(tmpFile.toPath());
2537             } catch (IOException e) {
2538                 logger.warn("Failed to delete received group avatar temp file “{}”, ignoring: {}",
2539                         tmpFile,
2540                         e.getMessage());
2541             }
2542         }
2543     }
2544
2545     private void retrieveProfileAvatar(
2546             String avatarPath, ProfileKey profileKey, OutputStream outputStream
2547     ) throws IOException {
2548         var tmpFile = IOUtils.createTempFile();
2549         try (var input = dependencies.getMessageReceiver()
2550                 .retrieveProfileAvatar(avatarPath,
2551                         tmpFile,
2552                         profileKey,
2553                         ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
2554             // Use larger buffer size to prevent AssertionError: Need: 12272 but only have: 8192 ...
2555             IOUtils.copyStream(input, outputStream, (int) ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE);
2556         } finally {
2557             try {
2558                 Files.delete(tmpFile.toPath());
2559             } catch (IOException e) {
2560                 logger.warn("Failed to delete received profile avatar temp file “{}”, ignoring: {}",
2561                         tmpFile,
2562                         e.getMessage());
2563             }
2564         }
2565     }
2566
2567     private void retrieveAttachment(
2568             final SignalServiceAttachment attachment, final OutputStream outputStream
2569     ) throws IOException {
2570         if (attachment.isPointer()) {
2571             var pointer = attachment.asPointer();
2572             retrieveAttachmentPointer(pointer, outputStream);
2573         } else {
2574             var stream = attachment.asStream();
2575             IOUtils.copyStream(stream.getInputStream(), outputStream);
2576         }
2577     }
2578
2579     private void retrieveAttachmentPointer(
2580             SignalServiceAttachmentPointer pointer, OutputStream outputStream
2581     ) throws IOException {
2582         var tmpFile = IOUtils.createTempFile();
2583         try (var input = retrieveAttachmentAsStream(pointer, tmpFile)) {
2584             IOUtils.copyStream(input, outputStream);
2585         } catch (MissingConfigurationException | InvalidMessageException e) {
2586             throw new IOException(e);
2587         } finally {
2588             try {
2589                 Files.delete(tmpFile.toPath());
2590             } catch (IOException e) {
2591                 logger.warn("Failed to delete received attachment temp file “{}”, ignoring: {}",
2592                         tmpFile,
2593                         e.getMessage());
2594             }
2595         }
2596     }
2597
2598     private InputStream retrieveAttachmentAsStream(
2599             SignalServiceAttachmentPointer pointer, File tmpFile
2600     ) throws IOException, InvalidMessageException, MissingConfigurationException {
2601         return dependencies.getMessageReceiver()
2602                 .retrieveAttachment(pointer, tmpFile, ServiceConfig.MAX_ATTACHMENT_SIZE);
2603     }
2604
2605     void sendGroups() throws IOException, UntrustedIdentityException {
2606         var groupsFile = IOUtils.createTempFile();
2607
2608         try {
2609             try (OutputStream fos = new FileOutputStream(groupsFile)) {
2610                 var out = new DeviceGroupsOutputStream(fos);
2611                 for (var record : getGroups()) {
2612                     if (record instanceof GroupInfoV1) {
2613                         var groupInfo = (GroupInfoV1) record;
2614                         out.write(new DeviceGroup(groupInfo.getGroupId().serialize(),
2615                                 Optional.fromNullable(groupInfo.name),
2616                                 groupInfo.getMembers()
2617                                         .stream()
2618                                         .map(this::resolveSignalServiceAddress)
2619                                         .collect(Collectors.toList()),
2620                                 createGroupAvatarAttachment(groupInfo.getGroupId()),
2621                                 groupInfo.isMember(account.getSelfRecipientId()),
2622                                 Optional.of(groupInfo.messageExpirationTime),
2623                                 Optional.fromNullable(groupInfo.color),
2624                                 groupInfo.blocked,
2625                                 Optional.absent(),
2626                                 groupInfo.archived));
2627                     }
2628                 }
2629             }
2630
2631             if (groupsFile.exists() && groupsFile.length() > 0) {
2632                 try (var groupsFileStream = new FileInputStream(groupsFile)) {
2633                     var attachmentStream = SignalServiceAttachment.newStreamBuilder()
2634                             .withStream(groupsFileStream)
2635                             .withContentType("application/octet-stream")
2636                             .withLength(groupsFile.length())
2637                             .build();
2638
2639                     sendSyncMessage(SignalServiceSyncMessage.forGroups(attachmentStream));
2640                 }
2641             }
2642         } finally {
2643             try {
2644                 Files.delete(groupsFile.toPath());
2645             } catch (IOException e) {
2646                 logger.warn("Failed to delete groups temp file “{}”, ignoring: {}", groupsFile, e.getMessage());
2647             }
2648         }
2649     }
2650
2651     public void sendContacts() throws IOException, UntrustedIdentityException {
2652         var contactsFile = IOUtils.createTempFile();
2653
2654         try {
2655             try (OutputStream fos = new FileOutputStream(contactsFile)) {
2656                 var out = new DeviceContactsOutputStream(fos);
2657                 for (var contactPair : account.getContactStore().getContacts()) {
2658                     final var recipientId = contactPair.first();
2659                     final var contact = contactPair.second();
2660                     final var address = resolveSignalServiceAddress(recipientId);
2661
2662                     var currentIdentity = account.getIdentityKeyStore().getIdentity(recipientId);
2663                     VerifiedMessage verifiedMessage = null;
2664                     if (currentIdentity != null) {
2665                         verifiedMessage = new VerifiedMessage(address,
2666                                 currentIdentity.getIdentityKey(),
2667                                 currentIdentity.getTrustLevel().toVerifiedState(),
2668                                 currentIdentity.getDateAdded().getTime());
2669                     }
2670
2671                     var profileKey = account.getProfileStore().getProfileKey(recipientId);
2672                     out.write(new DeviceContact(address,
2673                             Optional.fromNullable(contact.getName()),
2674                             createContactAvatarAttachment(address),
2675                             Optional.fromNullable(contact.getColor()),
2676                             Optional.fromNullable(verifiedMessage),
2677                             Optional.fromNullable(profileKey),
2678                             contact.isBlocked(),
2679                             Optional.of(contact.getMessageExpirationTime()),
2680                             Optional.absent(),
2681                             contact.isArchived()));
2682                 }
2683
2684                 if (account.getProfileKey() != null) {
2685                     // Send our own profile key as well
2686                     out.write(new DeviceContact(account.getSelfAddress(),
2687                             Optional.absent(),
2688                             Optional.absent(),
2689                             Optional.absent(),
2690                             Optional.absent(),
2691                             Optional.of(account.getProfileKey()),
2692                             false,
2693                             Optional.absent(),
2694                             Optional.absent(),
2695                             false));
2696                 }
2697             }
2698
2699             if (contactsFile.exists() && contactsFile.length() > 0) {
2700                 try (var contactsFileStream = new FileInputStream(contactsFile)) {
2701                     var attachmentStream = SignalServiceAttachment.newStreamBuilder()
2702                             .withStream(contactsFileStream)
2703                             .withContentType("application/octet-stream")
2704                             .withLength(contactsFile.length())
2705                             .build();
2706
2707                     sendSyncMessage(SignalServiceSyncMessage.forContacts(new ContactsMessage(attachmentStream, true)));
2708                 }
2709             }
2710         } finally {
2711             try {
2712                 Files.delete(contactsFile.toPath());
2713             } catch (IOException e) {
2714                 logger.warn("Failed to delete contacts temp file “{}”, ignoring: {}", contactsFile, e.getMessage());
2715             }
2716         }
2717     }
2718
2719     void sendBlockedList() throws IOException, UntrustedIdentityException {
2720         var addresses = new ArrayList<SignalServiceAddress>();
2721         for (var record : account.getContactStore().getContacts()) {
2722             if (record.second().isBlocked()) {
2723                 addresses.add(resolveSignalServiceAddress(record.first()));
2724             }
2725         }
2726         var groupIds = new ArrayList<byte[]>();
2727         for (var record : getGroups()) {
2728             if (record.isBlocked()) {
2729                 groupIds.add(record.getGroupId().serialize());
2730             }
2731         }
2732         sendSyncMessage(SignalServiceSyncMessage.forBlocked(new BlockedListMessage(addresses, groupIds)));
2733     }
2734
2735     private void sendVerifiedMessage(
2736             SignalServiceAddress destination, IdentityKey identityKey, TrustLevel trustLevel
2737     ) throws IOException, UntrustedIdentityException {
2738         var verifiedMessage = new VerifiedMessage(destination,
2739                 identityKey,
2740                 trustLevel.toVerifiedState(),
2741                 System.currentTimeMillis());
2742         sendSyncMessage(SignalServiceSyncMessage.forVerified(verifiedMessage));
2743     }
2744
2745     public List<Pair<RecipientId, Contact>> getContacts() {
2746         return account.getContactStore().getContacts();
2747     }
2748
2749     public String getContactOrProfileName(String number) throws InvalidNumberException {
2750         final var recipientId = canonicalizeAndResolveRecipient(number);
2751         final var recipient = account.getRecipientStore().getRecipient(recipientId);
2752         if (recipient == null) {
2753             return null;
2754         }
2755
2756         if (recipient.getContact() != null && !Util.isEmpty(recipient.getContact().getName())) {
2757             return recipient.getContact().getName();
2758         }
2759
2760         if (recipient.getProfile() != null && recipient.getProfile() != null) {
2761             return recipient.getProfile().getDisplayName();
2762         }
2763
2764         return null;
2765     }
2766
2767     public GroupInfo getGroup(GroupId groupId) {
2768         return getGroup(groupId, false);
2769     }
2770
2771     public GroupInfo getGroup(GroupId groupId, boolean forceUpdate) {
2772         final var group = account.getGroupStore().getGroup(groupId);
2773         if (group instanceof GroupInfoV2 && (forceUpdate || ((GroupInfoV2) group).getGroup() == null)) {
2774             final var groupSecretParams = GroupSecretParams.deriveFromMasterKey(((GroupInfoV2) group).getMasterKey());
2775             ((GroupInfoV2) group).setGroup(groupV2Helper.getDecryptedGroup(groupSecretParams), this::resolveRecipient);
2776             account.getGroupStore().updateGroup(group);
2777         }
2778         return group;
2779     }
2780
2781     public List<IdentityInfo> getIdentities() {
2782         return account.getIdentityKeyStore().getIdentities();
2783     }
2784
2785     public List<IdentityInfo> getIdentities(String number) throws InvalidNumberException {
2786         final var identity = account.getIdentityKeyStore().getIdentity(canonicalizeAndResolveRecipient(number));
2787         return identity == null ? List.of() : List.of(identity);
2788     }
2789
2790     /**
2791      * Trust this the identity with this fingerprint
2792      *
2793      * @param name        username of the identity
2794      * @param fingerprint Fingerprint
2795      */
2796     public boolean trustIdentityVerified(String name, byte[] fingerprint) throws InvalidNumberException {
2797         var recipientId = canonicalizeAndResolveRecipient(name);
2798         return trustIdentity(recipientId,
2799                 identityKey -> Arrays.equals(identityKey.serialize(), fingerprint),
2800                 TrustLevel.TRUSTED_VERIFIED);
2801     }
2802
2803     /**
2804      * Trust this the identity with this safety number
2805      *
2806      * @param name         username of the identity
2807      * @param safetyNumber Safety number
2808      */
2809     public boolean trustIdentityVerifiedSafetyNumber(String name, String safetyNumber) throws InvalidNumberException {
2810         var recipientId = canonicalizeAndResolveRecipient(name);
2811         var address = account.getRecipientStore().resolveServiceAddress(recipientId);
2812         return trustIdentity(recipientId,
2813                 identityKey -> safetyNumber.equals(computeSafetyNumber(address, identityKey)),
2814                 TrustLevel.TRUSTED_VERIFIED);
2815     }
2816
2817     /**
2818      * Trust all keys of this identity without verification
2819      *
2820      * @param name username of the identity
2821      */
2822     public boolean trustIdentityAllKeys(String name) throws InvalidNumberException {
2823         var recipientId = canonicalizeAndResolveRecipient(name);
2824         return trustIdentity(recipientId, identityKey -> true, TrustLevel.TRUSTED_UNVERIFIED);
2825     }
2826
2827     private boolean trustIdentity(
2828             RecipientId recipientId, Function<IdentityKey, Boolean> verifier, TrustLevel trustLevel
2829     ) {
2830         var identity = account.getIdentityKeyStore().getIdentity(recipientId);
2831         if (identity == null) {
2832             return false;
2833         }
2834
2835         if (!verifier.apply(identity.getIdentityKey())) {
2836             return false;
2837         }
2838
2839         account.getIdentityKeyStore().setIdentityTrustLevel(recipientId, identity.getIdentityKey(), trustLevel);
2840         try {
2841             var address = account.getRecipientStore().resolveServiceAddress(recipientId);
2842             sendVerifiedMessage(address, identity.getIdentityKey(), trustLevel);
2843         } catch (IOException | UntrustedIdentityException e) {
2844             logger.warn("Failed to send verification sync message: {}", e.getMessage());
2845         }
2846
2847         return true;
2848     }
2849
2850     public String computeSafetyNumber(
2851             SignalServiceAddress theirAddress, IdentityKey theirIdentityKey
2852     ) {
2853         return Utils.computeSafetyNumber(ServiceConfig.capabilities.isUuid(),
2854                 account.getSelfAddress(),
2855                 getIdentityKeyPair().getPublicKey(),
2856                 theirAddress,
2857                 theirIdentityKey);
2858     }
2859
2860     @Deprecated
2861     public SignalServiceAddress resolveSignalServiceAddress(String identifier) {
2862         var address = Utils.getSignalServiceAddressFromIdentifier(identifier);
2863
2864         return resolveSignalServiceAddress(address);
2865     }
2866
2867     @Deprecated
2868     public SignalServiceAddress resolveSignalServiceAddress(SignalServiceAddress address) {
2869         if (address.matches(account.getSelfAddress())) {
2870             return account.getSelfAddress();
2871         }
2872
2873         return account.getRecipientStore().resolveServiceAddress(address);
2874     }
2875
2876     public SignalServiceAddress resolveSignalServiceAddress(RecipientId recipientId) {
2877         return account.getRecipientStore().resolveServiceAddress(recipientId);
2878     }
2879
2880     public RecipientId canonicalizeAndResolveRecipient(String identifier) throws InvalidNumberException {
2881         var canonicalizedNumber = UuidUtil.isUuid(identifier)
2882                 ? identifier
2883                 : PhoneNumberFormatter.formatNumber(identifier, account.getUsername());
2884
2885         return resolveRecipient(canonicalizedNumber);
2886     }
2887
2888     private RecipientId resolveRecipient(final String identifier) {
2889         var address = Utils.getSignalServiceAddressFromIdentifier(identifier);
2890
2891         return resolveRecipient(address);
2892     }
2893
2894     public RecipientId resolveRecipient(SignalServiceAddress address) {
2895         return account.getRecipientStore().resolveRecipient(address);
2896     }
2897
2898     private RecipientId resolveRecipientTrusted(SignalServiceAddress address) {
2899         return account.getRecipientStore().resolveRecipientTrusted(address);
2900     }
2901
2902     private void enqueueJob(Job job) {
2903         var context = new Context(account,
2904                 dependencies.getAccountManager(),
2905                 dependencies.getMessageReceiver(),
2906                 stickerPackStore);
2907         job.run(context);
2908     }
2909
2910     @Override
2911     public void close() throws IOException {
2912         close(true);
2913     }
2914
2915     void close(boolean closeAccount) throws IOException {
2916         executor.shutdown();
2917
2918         dependencies.getSignalWebSocket().disconnect();
2919
2920         if (closeAccount && account != null) {
2921             account.close();
2922         }
2923         account = null;
2924     }
2925
2926     public interface ReceiveMessageHandler {
2927
2928         void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent decryptedContent, Throwable e);
2929     }
2930 }