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.storage.SignalAccount;
  38 import org.asamk.signal.manager.storage.groups.GroupInfo;
  39 import org.asamk.signal.manager.storage.groups.GroupInfoV1;
  40 import org.asamk.signal.manager.storage.groups.GroupInfoV2;
  41 import org.asamk.signal.manager.storage.identities.IdentityInfo;
  42 import org.asamk.signal.manager.storage.messageCache.CachedMessage;
  43 import org.asamk.signal.manager.storage.recipients.Contact;
  44 import org.asamk.signal.manager.storage.recipients.Profile;
  45 import org.asamk.signal.manager.storage.recipients.RecipientId;
  46 import org.asamk.signal.manager.storage.stickers.Sticker;
  47 import org.asamk.signal.manager.storage.stickers.StickerPackId;
  48 import org.asamk.signal.manager.util.AttachmentUtils;
  49 import org.asamk.signal.manager.util.IOUtils;
  50 import org.asamk.signal.manager.util.KeyUtils;
  51 import org.asamk.signal.manager.util.ProfileUtils;
  52 import org.asamk.signal.manager.util.StickerUtils;
  53 import org.asamk.signal.manager.util.Utils;
  54 import org.signal.libsignal.metadata.InvalidMetadataMessageException;
  55 import org.signal.libsignal.metadata.InvalidMetadataVersionException;
  56 import org.signal.libsignal.metadata.ProtocolDuplicateMessageException;
  57 import org.signal.libsignal.metadata.ProtocolInvalidKeyException;
  58 import org.signal.libsignal.metadata.ProtocolInvalidKeyIdException;
  59 import org.signal.libsignal.metadata.ProtocolInvalidMessageException;
  60 import org.signal.libsignal.metadata.ProtocolInvalidVersionException;
  61 import org.signal.libsignal.metadata.ProtocolLegacyMessageException;
  62 import org.signal.libsignal.metadata.ProtocolNoSessionException;
  63 import org.signal.libsignal.metadata.ProtocolUntrustedIdentityException;
  64 import org.signal.libsignal.metadata.SelfSendException;
  65 import org.signal.libsignal.metadata.certificate.CertificateValidator;
  66 import org.signal.storageservice.protos.groups.GroupChange;
  67 import org.signal.storageservice.protos.groups.local.DecryptedGroup;
  68 import org.signal.zkgroup.InvalidInputException;
  69 import org.signal.zkgroup.VerificationFailedException;
  70 import org.signal.zkgroup.groups.GroupMasterKey;
  71 import org.signal.zkgroup.groups.GroupSecretParams;
  72 import org.signal.zkgroup.profiles.ClientZkProfileOperations;
  73 import org.signal.zkgroup.profiles.ProfileKey;
  74 import org.signal.zkgroup.profiles.ProfileKeyCredential;
  75 import org.slf4j.Logger;
  76 import org.slf4j.LoggerFactory;
  77 import org.whispersystems.libsignal.IdentityKey;
  78 import org.whispersystems.libsignal.IdentityKeyPair;
  79 import org.whispersystems.libsignal.InvalidKeyException;
  80 import org.whispersystems.libsignal.InvalidMessageException;
  81 import org.whispersystems.libsignal.ecc.ECPublicKey;
  82 import org.whispersystems.libsignal.state.PreKeyRecord;
  83 import org.whispersystems.libsignal.state.SignedPreKeyRecord;
  84 import org.whispersystems.libsignal.util.Pair;
  85 import org.whispersystems.libsignal.util.guava.Optional;
  86 import org.whispersystems.signalservice.api.SignalServiceAccountManager;
  87 import org.whispersystems.signalservice.api.SignalServiceMessagePipe;
  88 import org.whispersystems.signalservice.api.SignalServiceMessageReceiver;
  89 import org.whispersystems.signalservice.api.SignalServiceMessageSender;
  90 import org.whispersystems.signalservice.api.SignalSessionLock;
  91 import org.whispersystems.signalservice.api.crypto.ContentHint;
  92 import org.whispersystems.signalservice.api.crypto.SignalServiceCipher;
  93 import org.whispersystems.signalservice.api.crypto.UntrustedIdentityException;
  94 import org.whispersystems.signalservice.api.groupsv2.ClientZkOperations;
  95 import org.whispersystems.signalservice.api.groupsv2.GroupLinkNotActiveException;
  96 import org.whispersystems.signalservice.api.groupsv2.GroupsV2Api;
  97 import org.whispersystems.signalservice.api.groupsv2.GroupsV2AuthorizationString;
  98 import org.whispersystems.signalservice.api.groupsv2.GroupsV2Operations;
  99 import org.whispersystems.signalservice.api.messages.SendMessageResult;
 100 import org.whispersystems.signalservice.api.messages.SignalServiceAttachment;
 101 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentPointer;
 102 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentRemoteId;
 103 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentStream;
 104 import org.whispersystems.signalservice.api.messages.SignalServiceContent;
 105 import org.whispersystems.signalservice.api.messages.SignalServiceDataMessage;
 106 import org.whispersystems.signalservice.api.messages.SignalServiceEnvelope;
 107 import org.whispersystems.signalservice.api.messages.SignalServiceGroup;
 108 import org.whispersystems.signalservice.api.messages.SignalServiceGroupV2;
 109 import org.whispersystems.signalservice.api.messages.SignalServiceReceiptMessage;
 110 import org.whispersystems.signalservice.api.messages.SignalServiceTypingMessage;
 111 import org.whispersystems.signalservice.api.messages.multidevice.BlockedListMessage;
 112 import org.whispersystems.signalservice.api.messages.multidevice.ContactsMessage;
 113 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContact;
 114 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsInputStream;
 115 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsOutputStream;
 116 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroup;
 117 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsInputStream;
 118 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsOutputStream;
 119 import org.whispersystems.signalservice.api.messages.multidevice.RequestMessage;
 120 import org.whispersystems.signalservice.api.messages.multidevice.SentTranscriptMessage;
 121 import org.whispersystems.signalservice.api.messages.multidevice.SignalServiceSyncMessage;
 122 import org.whispersystems.signalservice.api.messages.multidevice.StickerPackOperationMessage;
 123 import org.whispersystems.signalservice.api.messages.multidevice.VerifiedMessage;
 124 import org.whispersystems.signalservice.api.profiles.ProfileAndCredential;
 125 import org.whispersystems.signalservice.api.profiles.SignalServiceProfile;
 126 import org.whispersystems.signalservice.api.push.SignalServiceAddress;
 127 import org.whispersystems.signalservice.api.push.exceptions.ConflictException;
 128 import org.whispersystems.signalservice.api.push.exceptions.MissingConfigurationException;
 129 import org.whispersystems.signalservice.api.push.exceptions.UnregisteredUserException;
 130 import org.whispersystems.signalservice.api.util.DeviceNameUtil;
 131 import org.whispersystems.signalservice.api.util.InvalidNumberException;
 132 import org.whispersystems.signalservice.api.util.PhoneNumberFormatter;
 133 import org.whispersystems.signalservice.api.util.SleepTimer;
 134 import org.whispersystems.signalservice.api.util.UptimeSleepTimer;
 135 import org.whispersystems.signalservice.api.util.UuidUtil;
 136 import org.whispersystems.signalservice.internal.contacts.crypto.Quote;
 137 import org.whispersystems.signalservice.internal.contacts.crypto.UnauthenticatedQuoteException;
 138 import org.whispersystems.signalservice.internal.contacts.crypto.UnauthenticatedResponseException;
 139 import org.whispersystems.signalservice.internal.push.SignalServiceProtos;
 140 import org.whispersystems.signalservice.internal.push.UnsupportedDataMessageException;
 141 import org.whispersystems.signalservice.internal.util.DynamicCredentialsProvider;
 142 import org.whispersystems.signalservice.internal.util.Hex;
 143 import org.whispersystems.signalservice.internal.util.Util;
 144
 145 import java.io.Closeable;
 146 import java.io.File;
 147 import java.io.FileInputStream;
 148 import java.io.FileOutputStream;
 149 import java.io.IOException;
 150 import java.io.InputStream;
 151 import java.io.OutputStream;
 152 import java.net.URI;
 153 import java.net.URISyntaxException;
 154 import java.net.URLEncoder;
 155 import java.nio.charset.StandardCharsets;
 156 import java.nio.file.Files;
 157 import java.security.SignatureException;
 158 import java.util.ArrayList;
 159 import java.util.Arrays;
 160 import java.util.Base64;
 161 import java.util.Collection;
 162 import java.util.Date;
 163 import java.util.HashSet;
 164 import java.util.List;
 165 import java.util.Map;
 166 import java.util.Set;
 167 import java.util.UUID;
 168 import java.util.concurrent.ExecutorService;
 169 import java.util.concurrent.Executors;
 170 import java.util.concurrent.TimeUnit;
 171 import java.util.concurrent.TimeoutException;
 172 import java.util.concurrent.locks.ReentrantLock;
 173 import java.util.function.Function;
 174 import java.util.stream.Collectors;
 175
 176 import static org.asamk.signal.manager.config.ServiceConfig.capabilities;
 177
 178 public class Manager implements Closeable {
 179
 180     private final static Logger logger = LoggerFactory.getLogger(Manager.class);
 181
 182     private final CertificateValidator certificateValidator;
 183
 184     private final ServiceEnvironmentConfig serviceEnvironmentConfig;
 185     private final String userAgent;
 186
 187     private SignalAccount account;
 188     private final SignalServiceAccountManager accountManager;
 189     private final GroupsV2Api groupsV2Api;
 190     private final GroupsV2Operations groupsV2Operations;
 191     private final SignalServiceMessageReceiver messageReceiver;
 192     private final ClientZkProfileOperations clientZkProfileOperations;
 193
 194     private final ExecutorService executor = Executors.newCachedThreadPool();
 195
 196     private SignalServiceMessagePipe messagePipe = null;
 197     private SignalServiceMessagePipe unidentifiedMessagePipe = null;
 198
 199     private final UnidentifiedAccessHelper unidentifiedAccessHelper;
 200     private final ProfileHelper profileHelper;
 201     private final GroupV2Helper groupV2Helper;
 202     private final PinHelper pinHelper;
 203     private final AvatarStore avatarStore;
 204     private final AttachmentStore attachmentStore;
 205     private final SignalSessionLock sessionLock = new SignalSessionLock() {
 206         private final ReentrantLock LEGACY_LOCK = new ReentrantLock();
 207
 208         @Override
 209         public Lock acquire() {
 210             LEGACY_LOCK.lock();
 211             return LEGACY_LOCK::unlock;
 212         }
 213     };
 214
 215     Manager(
 216             SignalAccount account,
 217             PathConfig pathConfig,
 218             ServiceEnvironmentConfig serviceEnvironmentConfig,
 219             String userAgent
 220     ) {
 221         this.account = account;
 222         this.serviceEnvironmentConfig = serviceEnvironmentConfig;
 223         this.certificateValidator = new CertificateValidator(serviceEnvironmentConfig.getUnidentifiedSenderTrustRoot());
 224         this.userAgent = userAgent;
 225         this.groupsV2Operations = capabilities.isGv2() ? new GroupsV2Operations(ClientZkOperations.create(
 226                 serviceEnvironmentConfig.getSignalServiceConfiguration())) : null;
 227         final SleepTimer timer = new UptimeSleepTimer();
 228         this.accountManager = new SignalServiceAccountManager(serviceEnvironmentConfig.getSignalServiceConfiguration(),
 229                 new DynamicCredentialsProvider(account.getUuid(),
 230                         account.getUsername(),
 231                         account.getPassword(),
 232                         account.getDeviceId()),
 233                 userAgent,
 234                 groupsV2Operations,
 235                 ServiceConfig.AUTOMATIC_NETWORK_RETRY,
 236                 timer);
 237         this.groupsV2Api = accountManager.getGroupsV2Api();
 238         final var keyBackupService = accountManager.getKeyBackupService(ServiceConfig.getIasKeyStore(),
 239                 serviceEnvironmentConfig.getKeyBackupConfig().getEnclaveName(),
 240                 serviceEnvironmentConfig.getKeyBackupConfig().getServiceId(),
 241                 serviceEnvironmentConfig.getKeyBackupConfig().getMrenclave(),
 242                 10);
 243
 244         this.pinHelper = new PinHelper(keyBackupService);
 245         this.clientZkProfileOperations = capabilities.isGv2()
 246                 ? ClientZkOperations.create(serviceEnvironmentConfig.getSignalServiceConfiguration())
 247                 .getProfileOperations()
 248                 : null;
 249         this.messageReceiver = new SignalServiceMessageReceiver(serviceEnvironmentConfig.getSignalServiceConfiguration(),
 250                 account.getUuid(),
 251                 account.getUsername(),
 252                 account.getPassword(),
 253                 account.getDeviceId(),
 254                 userAgent,
 255                 null,
 256                 timer,
 257                 clientZkProfileOperations,
 258                 ServiceConfig.AUTOMATIC_NETWORK_RETRY);
 259
 260         this.unidentifiedAccessHelper = new UnidentifiedAccessHelper(account::getProfileKey,
 261                 account.getProfileStore()::getProfileKey,
 262                 this::getRecipientProfile,
 263                 this::getSenderCertificate);
 264         this.profileHelper = new ProfileHelper(account.getProfileStore()::getProfileKey,
 265                 unidentifiedAccessHelper::getAccessFor,
 266                 unidentified -> unidentified ? getOrCreateUnidentifiedMessagePipe() : getOrCreateMessagePipe(),
 267                 () -> messageReceiver,
 268                 this::resolveSignalServiceAddress);
 269         this.groupV2Helper = new GroupV2Helper(this::getRecipientProfileKeyCredential,
 270                 this::getRecipientProfile,
 271                 account::getSelfRecipientId,
 272                 groupsV2Operations,
 273                 groupsV2Api,
 274                 this::getGroupAuthForToday,
 275                 this::resolveSignalServiceAddress);
 276         this.avatarStore = new AvatarStore(pathConfig.getAvatarsPath());
 277         this.attachmentStore = new AttachmentStore(pathConfig.getAttachmentsPath());
 278     }
 279
 280     public String getUsername() {
 281         return account.getUsername();
 282     }
 283
 284     public SignalServiceAddress getSelfAddress() {
 285         return account.getSelfAddress();
 286     }
 287
 288     public RecipientId getSelfRecipientId() {
 289         return account.getSelfRecipientId();
 290     }
 291
 292     private IdentityKeyPair getIdentityKeyPair() {
 293         return account.getIdentityKeyPair();
 294     }
 295
 296     public int getDeviceId() {
 297         return account.getDeviceId();
 298     }
 299
 300     public static Manager init(
 301             String username, File settingsPath, ServiceEnvironment serviceEnvironment, String userAgent
 302     ) throws IOException, NotRegisteredException {
 303         var pathConfig = PathConfig.createDefault(settingsPath);
 304
 305         if (!SignalAccount.userExists(pathConfig.getDataPath(), username)) {
 306             throw new NotRegisteredException();
 307         }
 308
 309         var account = SignalAccount.load(pathConfig.getDataPath(), username, true);
 310
 311         if (!account.isRegistered()) {
 312             throw new NotRegisteredException();
 313         }
 314
 315         final var serviceEnvironmentConfig = ServiceConfig.getServiceEnvironmentConfig(serviceEnvironment, userAgent);
 316
 317         return new Manager(account, pathConfig, serviceEnvironmentConfig, userAgent);
 318     }
 319
 320     public static List<String> getAllLocalUsernames(File settingsPath) {
 321         var pathConfig = PathConfig.createDefault(settingsPath);
 322         final var dataPath = pathConfig.getDataPath();
 323         final var files = dataPath.listFiles();
 324
 325         if (files == null) {
 326             return List.of();
 327         }
 328
 329         return Arrays.stream(files)
 330                 .filter(File::isFile)
 331                 .map(File::getName)
 332                 .filter(file -> PhoneNumberFormatter.isValidNumber(file, null))
 333                 .collect(Collectors.toList());
 334     }
 335
 336     public void checkAccountState() throws IOException {
 337         if (account.getLastReceiveTimestamp() == 0) {
 338             logger.warn("The Signal protocol expects that incoming messages are regularly received.");
 339         } else {
 340             var diffInMilliseconds = System.currentTimeMillis() - account.getLastReceiveTimestamp();
 341             long days = TimeUnit.DAYS.convert(diffInMilliseconds, TimeUnit.MILLISECONDS);
 342             if (days > 7) {
 343                 logger.warn(
 344                         "Messages have been last received {} days ago. The Signal protocol expects that incoming messages are regularly received.",
 345                         days);
 346             }
 347         }
 348         if (accountManager.getPreKeysCount() < ServiceConfig.PREKEY_MINIMUM_COUNT) {
 349             refreshPreKeys();
 350         }
 351         if (account.getUuid() == null) {
 352             account.setUuid(accountManager.getOwnUuid());
 353         }
 354         updateAccountAttributes();
 355     }
 356
 357     /**
 358      * This is used for checking a set of phone numbers for registration on Signal
 359      *
 360      * @param numbers The set of phone number in question
 361      * @return A map of numbers to booleans. True if registered, false otherwise. Should never be null
 362      * @throws IOException if its unable to get the contacts to check if they're registered
 363      */
 364     public Map<String, Boolean> areUsersRegistered(Set<String> numbers) throws IOException {
 365         // Note "contactDetails" has no optionals. It only gives us info on users who are registered
 366         var contactDetails = getRegisteredUsers(numbers);
 367
 368         var registeredUsers = contactDetails.keySet();
 369
 370         return numbers.stream().collect(Collectors.toMap(x -> x, registeredUsers::contains));
 371     }
 372
 373     public void updateAccountAttributes() throws IOException {
 374         accountManager.setAccountAttributes(account.getEncryptedDeviceName(),
 375                 null,
 376                 account.getLocalRegistrationId(),
 377                 true,
 378                 // set legacy pin only if no KBS master key is set
 379                 account.getPinMasterKey() == null ? account.getRegistrationLockPin() : null,
 380                 account.getPinMasterKey() == null ? null : account.getPinMasterKey().deriveRegistrationLock(),
 381                 account.getSelfUnidentifiedAccessKey(),
 382                 account.isUnrestrictedUnidentifiedAccess(),
 383                 capabilities,
 384                 account.isDiscoverableByPhoneNumber());
 385     }
 386
 387     /**
 388      * @param givenName  if null, the previous givenName will be kept
 389      * @param familyName if null, the previous familyName will be kept
 390      * @param about      if null, the previous about text will be kept
 391      * @param aboutEmoji if null, the previous about emoji will be kept
 392      * @param avatar     if avatar is null the image from the local avatar store is used (if present),
 393      */
 394     public void setProfile(
 395             String givenName, final String familyName, String about, String aboutEmoji, Optional<File> avatar
 396     ) throws IOException {
 397         var profile = getRecipientProfile(account.getSelfRecipientId());
 398         var builder = profile == null ? Profile.newBuilder() : Profile.newBuilder(profile);
 399         if (givenName != null) {
 400             builder.withGivenName(givenName);
 401         }
 402         if (familyName != null) {
 403             builder.withFamilyName(familyName);
 404         }
 405         if (about != null) {
 406             builder.withAbout(about);
 407         }
 408         if (aboutEmoji != null) {
 409             builder.withAboutEmoji(aboutEmoji);
 410         }
 411         var newProfile = builder.build();
 412
 413         try (final var streamDetails = avatar == null
 414                 ? avatarStore.retrieveProfileAvatar(getSelfAddress())
 415                 : avatar.isPresent() ? Utils.createStreamDetailsFromFile(avatar.get()) : null) {
 416             accountManager.setVersionedProfile(account.getUuid(),
 417                     account.getProfileKey(),
 418                     newProfile.getInternalServiceName(),
 419                     newProfile.getAbout() == null ? "" : newProfile.getAbout(),
 420                     newProfile.getAboutEmoji() == null ? "" : newProfile.getAboutEmoji(),
 421                     Optional.absent(),
 422                     streamDetails);
 423         }
 424
 425         if (avatar != null) {
 426             if (avatar.isPresent()) {
 427                 avatarStore.storeProfileAvatar(getSelfAddress(),
 428                         outputStream -> IOUtils.copyFileToStream(avatar.get(), outputStream));
 429             } else {
 430                 avatarStore.deleteProfileAvatar(getSelfAddress());
 431             }
 432         }
 433         account.getProfileStore().storeProfile(account.getSelfRecipientId(), newProfile);
 434
 435         try {
 436             sendSyncMessage(SignalServiceSyncMessage.forFetchLatest(SignalServiceSyncMessage.FetchType.LOCAL_PROFILE));
 437         } catch (UntrustedIdentityException ignored) {
 438         }
 439     }
 440
 441     public void unregister() throws IOException {
 442         // When setting an empty GCM id, the Signal-Server also sets the fetchesMessages property to false.
 443         // If this is the master device, other users can't send messages to this number anymore.
 444         // If this is a linked device, other users can still send messages, but this device doesn't receive them anymore.
 445         accountManager.setGcmId(Optional.absent());
 446
 447         account.setRegistered(false);
 448     }
 449
 450     public void deleteAccount() throws IOException {
 451         accountManager.deleteAccount();
 452
 453         account.setRegistered(false);
 454     }
 455
 456     public List<Device> getLinkedDevices() throws IOException {
 457         var devices = accountManager.getDevices();
 458         account.setMultiDevice(devices.size() > 1);
 459         var identityKey = account.getIdentityKeyPair().getPrivateKey();
 460         return devices.stream().map(d -> {
 461             String deviceName = d.getName();
 462             if (deviceName != null) {
 463                 try {
 464                     deviceName = DeviceNameUtil.decryptDeviceName(deviceName, identityKey);
 465                 } catch (IOException e) {
 466                     logger.debug("Failed to decrypt device name, maybe plain text?", e);
 467                 }
 468             }
 469             return new Device(d.getId(), deviceName, d.getCreated(), d.getLastSeen());
 470         }).collect(Collectors.toList());
 471     }
 472
 473     public void removeLinkedDevices(int deviceId) throws IOException {
 474         accountManager.removeDevice(deviceId);
 475         var devices = accountManager.getDevices();
 476         account.setMultiDevice(devices.size() > 1);
 477     }
 478
 479     public void addDeviceLink(URI linkUri) throws IOException, InvalidKeyException {
 480         var info = DeviceLinkInfo.parseDeviceLinkUri(linkUri);
 481
 482         addDevice(info.deviceIdentifier, info.deviceKey);
 483     }
 484
 485     private void addDevice(String deviceIdentifier, ECPublicKey deviceKey) throws IOException, InvalidKeyException {
 486         var identityKeyPair = getIdentityKeyPair();
 487         var verificationCode = accountManager.getNewDeviceVerificationCode();
 488
 489         accountManager.addDevice(deviceIdentifier,
 490                 deviceKey,
 491                 identityKeyPair,
 492                 Optional.of(account.getProfileKey().serialize()),
 493                 verificationCode);
 494         account.setMultiDevice(true);
 495     }
 496
 497     public void setRegistrationLockPin(Optional<String> pin) throws IOException, UnauthenticatedResponseException {
 498         if (!account.isMasterDevice()) {
 499             throw new RuntimeException("Only master device can set a PIN");
 500         }
 501         if (pin.isPresent()) {
 502             final var masterKey = account.getPinMasterKey() != null
 503                     ? account.getPinMasterKey()
 504                     : KeyUtils.createMasterKey();
 505
 506             pinHelper.setRegistrationLockPin(pin.get(), masterKey);
 507
 508             account.setRegistrationLockPin(pin.get(), masterKey);
 509         } else {
 510             // Remove legacy registration lock
 511             accountManager.removeRegistrationLockV1();
 512
 513             // Remove KBS Pin
 514             pinHelper.removeRegistrationLockPin();
 515
 516             account.setRegistrationLockPin(null, null);
 517         }
 518     }
 519
 520     void refreshPreKeys() throws IOException {
 521         var oneTimePreKeys = generatePreKeys();
 522         final var identityKeyPair = getIdentityKeyPair();
 523         var signedPreKeyRecord = generateSignedPreKey(identityKeyPair);
 524
 525         accountManager.setPreKeys(identityKeyPair.getPublicKey(), signedPreKeyRecord, oneTimePreKeys);
 526     }
 527
 528     private List<PreKeyRecord> generatePreKeys() {
 529         final var offset = account.getPreKeyIdOffset();
 530
 531         var records = KeyUtils.generatePreKeyRecords(offset, ServiceConfig.PREKEY_BATCH_SIZE);
 532         account.addPreKeys(records);
 533
 534         return records;
 535     }
 536
 537     private SignedPreKeyRecord generateSignedPreKey(IdentityKeyPair identityKeyPair) {
 538         final var signedPreKeyId = account.getNextSignedPreKeyId();
 539
 540         var record = KeyUtils.generateSignedPreKeyRecord(identityKeyPair, signedPreKeyId);
 541         account.addSignedPreKey(record);
 542
 543         return record;
 544     }
 545
 546     private SignalServiceMessagePipe getOrCreateMessagePipe() {
 547         if (messagePipe == null) {
 548             messagePipe = messageReceiver.createMessagePipe();
 549         }
 550         return messagePipe;
 551     }
 552
 553     private SignalServiceMessagePipe getOrCreateUnidentifiedMessagePipe() {
 554         if (unidentifiedMessagePipe == null) {
 555             unidentifiedMessagePipe = messageReceiver.createUnidentifiedMessagePipe();
 556         }
 557         return unidentifiedMessagePipe;
 558     }
 559
 560     private SignalServiceMessageSender createMessageSender() {
 561         return new SignalServiceMessageSender(serviceEnvironmentConfig.getSignalServiceConfiguration(),
 562                 account.getUuid(),
 563                 account.getUsername(),
 564                 account.getPassword(),
 565                 account.getDeviceId(),
 566                 account.getSignalProtocolStore(),
 567                 sessionLock,
 568                 userAgent,
 569                 account.isMultiDevice(),
 570                 Optional.fromNullable(messagePipe),
 571                 Optional.fromNullable(unidentifiedMessagePipe),
 572                 Optional.absent(),
 573                 clientZkProfileOperations,
 574                 executor,
 575                 ServiceConfig.MAX_ENVELOPE_SIZE,
 576                 ServiceConfig.AUTOMATIC_NETWORK_RETRY);
 577     }
 578
 579     public Profile getRecipientProfile(
 580             RecipientId recipientId
 581     ) {
 582         return getRecipientProfile(recipientId, false);
 583     }
 584
 585     private final Set<RecipientId> pendingProfileRequest = new HashSet<>();
 586
 587     Profile getRecipientProfile(
 588             RecipientId recipientId, boolean force
 589     ) {
 590         var profile = account.getProfileStore().getProfile(recipientId);
 591
 592         var now = System.currentTimeMillis();
 593         // Profiles are cached for 24h before retrieving them again, unless forced
 594         if (!force && profile != null && now - profile.getLastUpdateTimestamp() < 24 * 60 * 60 * 1000) {
 595             return profile;
 596         }
 597
 598         synchronized (pendingProfileRequest) {
 599             if (pendingProfileRequest.contains(recipientId)) {
 600                 return profile;
 601             }
 602             pendingProfileRequest.add(recipientId);
 603         }
 604         final SignalServiceProfile encryptedProfile;
 605         try {
 606             encryptedProfile = retrieveEncryptedProfile(recipientId);
 607         } finally {
 608             synchronized (pendingProfileRequest) {
 609                 pendingProfileRequest.remove(recipientId);
 610             }
 611         }
 612         if (encryptedProfile == null) {
 613             return null;
 614         }
 615
 616         var profileKey = account.getProfileStore().getProfileKey(recipientId);
 617         if (profileKey == null) {
 618             profile = new Profile(System.currentTimeMillis(),
 619                     null,
 620                     null,
 621                     null,
 622                     null,
 623                     ProfileUtils.getUnidentifiedAccessMode(encryptedProfile, null),
 624                     ProfileUtils.getCapabilities(encryptedProfile));
 625         } else {
 626             profile = decryptProfileAndDownloadAvatar(recipientId, profileKey, encryptedProfile);
 627         }
 628         account.getProfileStore().storeProfile(recipientId, profile);
 629
 630         return profile;
 631     }
 632
 633     private SignalServiceProfile retrieveEncryptedProfile(RecipientId recipientId) {
 634         try {
 635             return retrieveProfileAndCredential(recipientId, SignalServiceProfile.RequestType.PROFILE).getProfile();
 636         } catch (IOException e) {
 637             logger.warn("Failed to retrieve profile, ignoring: {}", e.getMessage());
 638             return null;
 639         }
 640     }
 641
 642     private ProfileAndCredential retrieveProfileAndCredential(
 643             final RecipientId recipientId, final SignalServiceProfile.RequestType requestType
 644     ) throws IOException {
 645         final var profileAndCredential = profileHelper.retrieveProfileSync(recipientId, requestType);
 646         final var profile = profileAndCredential.getProfile();
 647
 648         try {
 649             var newIdentity = account.getIdentityKeyStore()
 650                     .saveIdentity(recipientId,
 651                             new IdentityKey(Base64.getDecoder().decode(profile.getIdentityKey())),
 652                             new Date());
 653
 654             if (newIdentity) {
 655                 account.getSessionStore().archiveSessions(recipientId);
 656             }
 657         } catch (InvalidKeyException ignored) {
 658             logger.warn("Got invalid identity key in profile for {}",
 659                     resolveSignalServiceAddress(recipientId).getIdentifier());
 660         }
 661         return profileAndCredential;
 662     }
 663
 664     private ProfileKeyCredential getRecipientProfileKeyCredential(RecipientId recipientId) {
 665         var profileKeyCredential = account.getProfileStore().getProfileKeyCredential(recipientId);
 666         if (profileKeyCredential != null) {
 667             return profileKeyCredential;
 668         }
 669
 670         ProfileAndCredential profileAndCredential;
 671         try {
 672             profileAndCredential = retrieveProfileAndCredential(recipientId,
 673                     SignalServiceProfile.RequestType.PROFILE_AND_CREDENTIAL);
 674         } catch (IOException e) {
 675             logger.warn("Failed to retrieve profile key credential, ignoring: {}", e.getMessage());
 676             return null;
 677         }
 678
 679         profileKeyCredential = profileAndCredential.getProfileKeyCredential().orNull();
 680         account.getProfileStore().storeProfileKeyCredential(recipientId, profileKeyCredential);
 681
 682         var profileKey = account.getProfileStore().getProfileKey(recipientId);
 683         if (profileKey != null) {
 684             final var profile = decryptProfileAndDownloadAvatar(recipientId,
 685                     profileKey,
 686                     profileAndCredential.getProfile());
 687             account.getProfileStore().storeProfile(recipientId, profile);
 688         }
 689
 690         return profileKeyCredential;
 691     }
 692
 693     private Profile decryptProfileAndDownloadAvatar(
 694             final RecipientId recipientId, final ProfileKey profileKey, final SignalServiceProfile encryptedProfile
 695     ) {
 696         if (encryptedProfile.getAvatar() != null) {
 697             downloadProfileAvatar(resolveSignalServiceAddress(recipientId), encryptedProfile.getAvatar(), profileKey);
 698         }
 699
 700         return ProfileUtils.decryptProfile(profileKey, encryptedProfile);
 701     }
 702
 703     private Optional<SignalServiceAttachmentStream> createGroupAvatarAttachment(GroupId groupId) throws IOException {
 704         final var streamDetails = avatarStore.retrieveGroupAvatar(groupId);
 705         if (streamDetails == null) {
 706             return Optional.absent();
 707         }
 708
 709         return Optional.of(AttachmentUtils.createAttachment(streamDetails, Optional.absent()));
 710     }
 711
 712     private Optional<SignalServiceAttachmentStream> createContactAvatarAttachment(SignalServiceAddress address) throws IOException {
 713         final var streamDetails = avatarStore.retrieveContactAvatar(address);
 714         if (streamDetails == null) {
 715             return Optional.absent();
 716         }
 717
 718         return Optional.of(AttachmentUtils.createAttachment(streamDetails, Optional.absent()));
 719     }
 720
 721     private GroupInfo getGroupForSending(GroupId groupId) throws GroupNotFoundException, NotAGroupMemberException {
 722         var g = getGroup(groupId);
 723         if (g == null) {
 724             throw new GroupNotFoundException(groupId);
 725         }
 726         if (!g.isMember(account.getSelfRecipientId())) {
 727             throw new NotAGroupMemberException(groupId, g.getTitle());
 728         }
 729         return g;
 730     }
 731
 732     private GroupInfo getGroupForUpdating(GroupId groupId) throws GroupNotFoundException, NotAGroupMemberException {
 733         var g = getGroup(groupId);
 734         if (g == null) {
 735             throw new GroupNotFoundException(groupId);
 736         }
 737         if (!g.isMember(account.getSelfRecipientId()) && !g.isPendingMember(account.getSelfRecipientId())) {
 738             throw new NotAGroupMemberException(groupId, g.getTitle());
 739         }
 740         return g;
 741     }
 742
 743     public List<GroupInfo> getGroups() {
 744         return account.getGroupStore().getGroups();
 745     }
 746
 747     public Pair<Long, List<SendMessageResult>> sendGroupMessage(
 748             String messageText, List<String> attachments, GroupId groupId
 749     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 750         final var messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
 751         if (attachments != null) {
 752             messageBuilder.withAttachments(AttachmentUtils.getSignalServiceAttachments(attachments));
 753         }
 754
 755         return sendGroupMessage(messageBuilder, groupId);
 756     }
 757
 758     public Pair<Long, List<SendMessageResult>> sendGroupMessageReaction(
 759             String emoji, boolean remove, String targetAuthor, long targetSentTimestamp, GroupId groupId
 760     ) throws IOException, InvalidNumberException, NotAGroupMemberException, GroupNotFoundException {
 761         var targetAuthorRecipientId = canonicalizeAndResolveRecipient(targetAuthor);
 762         var reaction = new SignalServiceDataMessage.Reaction(emoji,
 763                 remove,
 764                 resolveSignalServiceAddress(targetAuthorRecipientId),
 765                 targetSentTimestamp);
 766         final var messageBuilder = SignalServiceDataMessage.newBuilder().withReaction(reaction);
 767
 768         return sendGroupMessage(messageBuilder, groupId);
 769     }
 770
 771     public Pair<Long, List<SendMessageResult>> sendGroupMessage(
 772             SignalServiceDataMessage.Builder messageBuilder, GroupId groupId
 773     ) throws IOException, GroupNotFoundException, NotAGroupMemberException {
 774         final var g = getGroupForSending(groupId);
 775
 776         GroupUtils.setGroupContext(messageBuilder, g);
 777         messageBuilder.withExpiration(g.getMessageExpirationTime());
 778
 779         return sendMessage(messageBuilder, g.getMembersWithout(account.getSelfRecipientId()));
 780     }
 781
 782     public Pair<Long, List<SendMessageResult>> sendQuitGroupMessage(
 783             GroupId groupId, Set<String> groupAdmins
 784     ) throws GroupNotFoundException, IOException, NotAGroupMemberException, InvalidNumberException, LastGroupAdminException {
 785         var group = getGroupForUpdating(groupId);
 786         if (group instanceof GroupInfoV1) {
 787             return quitGroupV1((GroupInfoV1) group);
 788         }
 789
 790         final var newAdmins = getSignalServiceAddresses(groupAdmins);
 791         try {
 792             return quitGroupV2((GroupInfoV2) group, newAdmins);
 793         } catch (ConflictException e) {
 794             // Detected conflicting update, refreshing group and trying again
 795             group = getGroup(groupId, true);
 796             return quitGroupV2((GroupInfoV2) group, newAdmins);
 797         }
 798     }
 799
 800     private Pair<Long, List<SendMessageResult>> quitGroupV1(final GroupInfoV1 groupInfoV1) throws IOException {
 801         var group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.QUIT)
 802                 .withId(groupInfoV1.getGroupId().serialize())
 803                 .build();
 804
 805         var messageBuilder = SignalServiceDataMessage.newBuilder().asGroupMessage(group);
 806         groupInfoV1.removeMember(account.getSelfRecipientId());
 807         account.getGroupStore().updateGroup(groupInfoV1);
 808         return sendMessage(messageBuilder, groupInfoV1.getMembersWithout(account.getSelfRecipientId()));
 809     }
 810
 811     private Pair<Long, List<SendMessageResult>> quitGroupV2(
 812             final GroupInfoV2 groupInfoV2, final Set<RecipientId> newAdmins
 813     ) throws LastGroupAdminException, IOException {
 814         final var currentAdmins = groupInfoV2.getAdminMembers();
 815         newAdmins.removeAll(currentAdmins);
 816         newAdmins.retainAll(groupInfoV2.getMembers());
 817         if (currentAdmins.contains(getSelfRecipientId())
 818                 && currentAdmins.size() == 1
 819                 && groupInfoV2.getMembers().size() > 1
 820                 && newAdmins.size() == 0) {
 821             // Last admin can't leave the group, unless she's also the last member
 822             throw new LastGroupAdminException(groupInfoV2.getGroupId(), groupInfoV2.getTitle());
 823         }
 824         final var groupGroupChangePair = groupV2Helper.leaveGroup(groupInfoV2, newAdmins);
 825         groupInfoV2.setGroup(groupGroupChangePair.first(), this::resolveRecipient);
 826         var messageBuilder = getGroupUpdateMessageBuilder(groupInfoV2, groupGroupChangePair.second().toByteArray());
 827         account.getGroupStore().updateGroup(groupInfoV2);
 828         return sendMessage(messageBuilder, groupInfoV2.getMembersWithout(account.getSelfRecipientId()));
 829     }
 830
 831     public void deleteGroup(GroupId groupId) throws IOException {
 832         account.getGroupStore().deleteGroup(groupId);
 833         avatarStore.deleteGroupAvatar(groupId);
 834     }
 835
 836     public Pair<GroupId, List<SendMessageResult>> createGroup(
 837             String name, List<String> members, File avatarFile
 838     ) throws IOException, AttachmentInvalidException, InvalidNumberException {
 839         return createGroup(name, members == null ? null : getSignalServiceAddresses(members), avatarFile);
 840     }
 841
 842     private Pair<GroupId, List<SendMessageResult>> createGroup(
 843             String name, Set<RecipientId> members, File avatarFile
 844     ) throws IOException, AttachmentInvalidException {
 845         final var selfRecipientId = account.getSelfRecipientId();
 846         if (members != null && members.contains(selfRecipientId)) {
 847             members = new HashSet<>(members);
 848             members.remove(selfRecipientId);
 849         }
 850
 851         var gv2Pair = groupV2Helper.createGroup(name == null ? "" : name,
 852                 members == null ? Set.of() : members,
 853                 avatarFile);
 854
 855         SignalServiceDataMessage.Builder messageBuilder;
 856         if (gv2Pair == null) {
 857             // Failed to create v2 group, creating v1 group instead
 858             var gv1 = new GroupInfoV1(GroupIdV1.createRandom());
 859             gv1.addMembers(List.of(selfRecipientId));
 860             final var result = updateGroupV1(gv1, name, members, avatarFile);
 861             return new Pair<>(gv1.getGroupId(), result.second());
 862         }
 863
 864         final var gv2 = gv2Pair.first();
 865         final var decryptedGroup = gv2Pair.second();
 866
 867         gv2.setGroup(decryptedGroup, this::resolveRecipient);
 868         if (avatarFile != null) {
 869             avatarStore.storeGroupAvatar(gv2.getGroupId(),
 870                     outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
 871         }
 872         messageBuilder = getGroupUpdateMessageBuilder(gv2, null);
 873         account.getGroupStore().updateGroup(gv2);
 874
 875         final var result = sendMessage(messageBuilder, gv2.getMembersIncludingPendingWithout(selfRecipientId));
 876         return new Pair<>(gv2.getGroupId(), result.second());
 877     }
 878
 879     public Pair<Long, List<SendMessageResult>> updateGroup(
 880             GroupId groupId,
 881             String name,
 882             String description,
 883             List<String> members,
 884             List<String> removeMembers,
 885             List<String> admins,
 886             List<String> removeAdmins,
 887             boolean resetGroupLink,
 888             GroupLinkState groupLinkState,
 889             GroupPermission addMemberPermission,
 890             GroupPermission editDetailsPermission,
 891             File avatarFile,
 892             Integer expirationTimer
 893     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, InvalidNumberException, NotAGroupMemberException {
 894         return updateGroup(groupId,
 895                 name,
 896                 description,
 897                 members == null ? null : getSignalServiceAddresses(members),
 898                 removeMembers == null ? null : getSignalServiceAddresses(removeMembers),
 899                 admins == null ? null : getSignalServiceAddresses(admins),
 900                 removeAdmins == null ? null : getSignalServiceAddresses(removeAdmins),
 901                 resetGroupLink,
 902                 groupLinkState,
 903                 addMemberPermission,
 904                 editDetailsPermission,
 905                 avatarFile,
 906                 expirationTimer);
 907     }
 908
 909     private Pair<Long, List<SendMessageResult>> updateGroup(
 910             final GroupId groupId,
 911             final String name,
 912             final String description,
 913             final Set<RecipientId> members,
 914             final Set<RecipientId> removeMembers,
 915             final Set<RecipientId> admins,
 916             final Set<RecipientId> removeAdmins,
 917             final boolean resetGroupLink,
 918             final GroupLinkState groupLinkState,
 919             final GroupPermission addMemberPermission,
 920             final GroupPermission editDetailsPermission,
 921             final File avatarFile,
 922             final Integer expirationTimer
 923     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 924         var group = getGroupForUpdating(groupId);
 925
 926         if (group instanceof GroupInfoV2) {
 927             try {
 928                 return updateGroupV2((GroupInfoV2) group,
 929                         name,
 930                         description,
 931                         members,
 932                         removeMembers,
 933                         admins,
 934                         removeAdmins,
 935                         resetGroupLink,
 936                         groupLinkState,
 937                         addMemberPermission,
 938                         editDetailsPermission,
 939                         avatarFile,
 940                         expirationTimer);
 941             } catch (ConflictException e) {
 942                 // Detected conflicting update, refreshing group and trying again
 943                 group = getGroup(groupId, true);
 944                 return updateGroupV2((GroupInfoV2) group,
 945                         name,
 946                         description,
 947                         members,
 948                         removeMembers,
 949                         admins,
 950                         removeAdmins,
 951                         resetGroupLink,
 952                         groupLinkState,
 953                         addMemberPermission,
 954                         editDetailsPermission,
 955                         avatarFile,
 956                         expirationTimer);
 957             }
 958         }
 959
 960         final var gv1 = (GroupInfoV1) group;
 961         final var result = updateGroupV1(gv1, name, members, avatarFile);
 962         if (expirationTimer != null) {
 963             setExpirationTimer(gv1, expirationTimer);
 964         }
 965         return result;
 966     }
 967
 968     private Pair<Long, List<SendMessageResult>> updateGroupV1(
 969             final GroupInfoV1 gv1, final String name, final Set<RecipientId> members, final File avatarFile
 970     ) throws IOException, AttachmentInvalidException {
 971         updateGroupV1Details(gv1, name, members, avatarFile);
 972         var messageBuilder = getGroupUpdateMessageBuilder(gv1);
 973
 974         account.getGroupStore().updateGroup(gv1);
 975
 976         return sendMessage(messageBuilder, gv1.getMembersIncludingPendingWithout(account.getSelfRecipientId()));
 977     }
 978
 979     private void updateGroupV1Details(
 980             final GroupInfoV1 g, final String name, final Collection<RecipientId> members, final File avatarFile
 981     ) throws IOException {
 982         if (name != null) {
 983             g.name = name;
 984         }
 985
 986         if (members != null) {
 987             final var newMemberAddresses = members.stream()
 988                     .filter(member -> !g.isMember(member))
 989                     .map(this::resolveSignalServiceAddress)
 990                     .collect(Collectors.toList());
 991             final var newE164Members = new HashSet<String>();
 992             for (var member : newMemberAddresses) {
 993                 if (!member.getNumber().isPresent()) {
 994                     continue;
 995                 }
 996                 newE164Members.add(member.getNumber().get());
 997             }
 998
 999             final var registeredUsers = getRegisteredUsers(newE164Members);
1000             if (registeredUsers.size() != newE164Members.size()) {
1001                 // Some of the new members are not registered on Signal
1002                 newE164Members.removeAll(registeredUsers.keySet());
1003                 throw new IOException("Failed to add members "
1004                         + String.join(", ", newE164Members)
1005                         + " to group: Not registered on Signal");
1006             }
1007
1008             g.addMembers(members);
1009         }
1010
1011         if (avatarFile != null) {
1012             avatarStore.storeGroupAvatar(g.getGroupId(),
1013                     outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
1014         }
1015     }
1016
1017     private Pair<Long, List<SendMessageResult>> updateGroupV2(
1018             final GroupInfoV2 group,
1019             final String name,
1020             final String description,
1021             final Set<RecipientId> members,
1022             final Set<RecipientId> removeMembers,
1023             final Set<RecipientId> admins,
1024             final Set<RecipientId> removeAdmins,
1025             final boolean resetGroupLink,
1026             final GroupLinkState groupLinkState,
1027             final GroupPermission addMemberPermission,
1028             final GroupPermission editDetailsPermission,
1029             final File avatarFile,
1030             Integer expirationTimer
1031     ) throws IOException {
1032         Pair<Long, List<SendMessageResult>> result = null;
1033         if (group.isPendingMember(account.getSelfRecipientId())) {
1034             var groupGroupChangePair = groupV2Helper.acceptInvite(group);
1035             result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1036         }
1037
1038         if (members != null) {
1039             final var newMembers = new HashSet<>(members);
1040             newMembers.removeAll(group.getMembers());
1041             if (newMembers.size() > 0) {
1042                 var groupGroupChangePair = groupV2Helper.addMembers(group, newMembers);
1043                 result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1044             }
1045         }
1046
1047         if (removeMembers != null) {
1048             var existingRemoveMembers = new HashSet<>(removeMembers);
1049             existingRemoveMembers.retainAll(group.getMembers());
1050             existingRemoveMembers.remove(getSelfRecipientId());// self can be removed with sendQuitGroupMessage
1051             if (existingRemoveMembers.size() > 0) {
1052                 var groupGroupChangePair = groupV2Helper.removeMembers(group, existingRemoveMembers);
1053                 result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1054             }
1055
1056             var pendingRemoveMembers = new HashSet<>(removeMembers);
1057             pendingRemoveMembers.retainAll(group.getPendingMembers());
1058             if (pendingRemoveMembers.size() > 0) {
1059                 var groupGroupChangePair = groupV2Helper.revokeInvitedMembers(group, pendingRemoveMembers);
1060                 result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1061             }
1062         }
1063
1064         if (admins != null) {
1065             final var newAdmins = new HashSet<>(admins);
1066             newAdmins.retainAll(group.getMembers());
1067             newAdmins.removeAll(group.getAdminMembers());
1068             if (newAdmins.size() > 0) {
1069                 for (var admin : newAdmins) {
1070                     var groupGroupChangePair = groupV2Helper.setMemberAdmin(group, admin, true);
1071                     result = sendUpdateGroupV2Message(group,
1072                             groupGroupChangePair.first(),
1073                             groupGroupChangePair.second());
1074                 }
1075             }
1076         }
1077
1078         if (removeAdmins != null) {
1079             final var existingRemoveAdmins = new HashSet<>(removeAdmins);
1080             existingRemoveAdmins.retainAll(group.getAdminMembers());
1081             if (existingRemoveAdmins.size() > 0) {
1082                 for (var admin : existingRemoveAdmins) {
1083                     var groupGroupChangePair = groupV2Helper.setMemberAdmin(group, admin, false);
1084                     result = sendUpdateGroupV2Message(group,
1085                             groupGroupChangePair.first(),
1086                             groupGroupChangePair.second());
1087                 }
1088             }
1089         }
1090
1091         if (resetGroupLink) {
1092             var groupGroupChangePair = groupV2Helper.resetGroupLinkPassword(group);
1093             result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1094         }
1095
1096         if (groupLinkState != null) {
1097             var groupGroupChangePair = groupV2Helper.setGroupLinkState(group, groupLinkState);
1098             result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1099         }
1100
1101         if (addMemberPermission != null) {
1102             var groupGroupChangePair = groupV2Helper.setAddMemberPermission(group, addMemberPermission);
1103             result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1104         }
1105
1106         if (editDetailsPermission != null) {
1107             var groupGroupChangePair = groupV2Helper.setEditDetailsPermission(group, editDetailsPermission);
1108             result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1109         }
1110
1111         if (expirationTimer != null) {
1112             var groupGroupChangePair = groupV2Helper.setMessageExpirationTimer(group, expirationTimer);
1113             result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1114         }
1115
1116         if (name != null || description != null || avatarFile != null) {
1117             var groupGroupChangePair = groupV2Helper.updateGroup(group, name, description, avatarFile);
1118             if (avatarFile != null) {
1119                 avatarStore.storeGroupAvatar(group.getGroupId(),
1120                         outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
1121             }
1122             result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1123         }
1124
1125         return result;
1126     }
1127
1128     public Pair<GroupId, List<SendMessageResult>> joinGroup(
1129             GroupInviteLinkUrl inviteLinkUrl
1130     ) throws IOException, GroupLinkNotActiveException {
1131         final var groupJoinInfo = groupV2Helper.getDecryptedGroupJoinInfo(inviteLinkUrl.getGroupMasterKey(),
1132                 inviteLinkUrl.getPassword());
1133         final var groupChange = groupV2Helper.joinGroup(inviteLinkUrl.getGroupMasterKey(),
1134                 inviteLinkUrl.getPassword(),
1135                 groupJoinInfo);
1136         final var group = getOrMigrateGroup(inviteLinkUrl.getGroupMasterKey(),
1137                 groupJoinInfo.getRevision() + 1,
1138                 groupChange.toByteArray());
1139
1140         if (group.getGroup() == null) {
1141             // Only requested member, can't send update to group members
1142             return new Pair<>(group.getGroupId(), List.of());
1143         }
1144
1145         final var result = sendUpdateGroupV2Message(group, group.getGroup(), groupChange);
1146
1147         return new Pair<>(group.getGroupId(), result.second());
1148     }
1149
1150     private Pair<Long, List<SendMessageResult>> sendUpdateGroupV2Message(
1151             GroupInfoV2 group, DecryptedGroup newDecryptedGroup, GroupChange groupChange
1152     ) throws IOException {
1153         final var selfRecipientId = account.getSelfRecipientId();
1154         final var members = group.getMembersIncludingPendingWithout(selfRecipientId);
1155         group.setGroup(newDecryptedGroup, this::resolveRecipient);
1156         members.addAll(group.getMembersIncludingPendingWithout(selfRecipientId));
1157
1158         final var messageBuilder = getGroupUpdateMessageBuilder(group, groupChange.toByteArray());
1159         account.getGroupStore().updateGroup(group);
1160         return sendMessage(messageBuilder, members);
1161     }
1162
1163     private static int currentTimeDays() {
1164         return (int) TimeUnit.MILLISECONDS.toDays(System.currentTimeMillis());
1165     }
1166
1167     private GroupsV2AuthorizationString getGroupAuthForToday(
1168             final GroupSecretParams groupSecretParams
1169     ) throws IOException {
1170         final var today = currentTimeDays();
1171         // Returns credentials for the next 7 days
1172         final var credentials = groupsV2Api.getCredentials(today);
1173         // TODO cache credentials until they expire
1174         var authCredentialResponse = credentials.get(today);
1175         try {
1176             return groupsV2Api.getGroupsV2AuthorizationString(account.getUuid(),
1177                     today,
1178                     groupSecretParams,
1179                     authCredentialResponse);
1180         } catch (VerificationFailedException e) {
1181             throw new IOException(e);
1182         }
1183     }
1184
1185     Pair<Long, List<SendMessageResult>> sendGroupInfoMessage(
1186             GroupIdV1 groupId, SignalServiceAddress recipient
1187     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, AttachmentInvalidException {
1188         GroupInfoV1 g;
1189         var group = getGroupForSending(groupId);
1190         if (!(group instanceof GroupInfoV1)) {
1191             throw new RuntimeException("Received an invalid group request for a v2 group!");
1192         }
1193         g = (GroupInfoV1) group;
1194
1195         final var recipientId = resolveRecipient(recipient);
1196         if (!g.isMember(recipientId)) {
1197             throw new NotAGroupMemberException(groupId, g.name);
1198         }
1199
1200         var messageBuilder = getGroupUpdateMessageBuilder(g);
1201
1202         // Send group message only to the recipient who requested it
1203         return sendMessage(messageBuilder, Set.of(recipientId));
1204     }
1205
1206     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfoV1 g) throws AttachmentInvalidException {
1207         var group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.UPDATE)
1208                 .withId(g.getGroupId().serialize())
1209                 .withName(g.name)
1210                 .withMembers(g.getMembers()
1211                         .stream()
1212                         .map(this::resolveSignalServiceAddress)
1213                         .collect(Collectors.toList()));
1214
1215         try {
1216             final var attachment = createGroupAvatarAttachment(g.getGroupId());
1217             if (attachment.isPresent()) {
1218                 group.withAvatar(attachment.get());
1219             }
1220         } catch (IOException e) {
1221             throw new AttachmentInvalidException(g.getGroupId().toBase64(), e);
1222         }
1223
1224         return SignalServiceDataMessage.newBuilder()
1225                 .asGroupMessage(group.build())
1226                 .withExpiration(g.getMessageExpirationTime());
1227     }
1228
1229     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfoV2 g, byte[] signedGroupChange) {
1230         var group = SignalServiceGroupV2.newBuilder(g.getMasterKey())
1231                 .withRevision(g.getGroup().getRevision())
1232                 .withSignedGroupChange(signedGroupChange);
1233         return SignalServiceDataMessage.newBuilder()
1234                 .asGroupMessage(group.build())
1235                 .withExpiration(g.getMessageExpirationTime());
1236     }
1237
1238     Pair<Long, List<SendMessageResult>> sendGroupInfoRequest(
1239             GroupIdV1 groupId, SignalServiceAddress recipient
1240     ) throws IOException {
1241         var group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.REQUEST_INFO).withId(groupId.serialize());
1242
1243         var messageBuilder = SignalServiceDataMessage.newBuilder().asGroupMessage(group.build());
1244
1245         // Send group info request message to the recipient who sent us a message with this groupId
1246         return sendMessage(messageBuilder, Set.of(resolveRecipient(recipient)));
1247     }
1248
1249     void sendReceipt(
1250             SignalServiceAddress remoteAddress, long messageId
1251     ) throws IOException, UntrustedIdentityException {
1252         var receiptMessage = new SignalServiceReceiptMessage(SignalServiceReceiptMessage.Type.DELIVERY,
1253                 List.of(messageId),
1254                 System.currentTimeMillis());
1255
1256         createMessageSender().sendReceipt(remoteAddress,
1257                 unidentifiedAccessHelper.getAccessFor(resolveRecipient(remoteAddress)),
1258                 receiptMessage);
1259     }
1260
1261     public Pair<Long, List<SendMessageResult>> sendMessage(
1262             String messageText, List<String> attachments, List<String> recipients
1263     ) throws IOException, AttachmentInvalidException, InvalidNumberException {
1264         final var messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
1265         if (attachments != null) {
1266             var attachmentStreams = AttachmentUtils.getSignalServiceAttachments(attachments);
1267
1268             // Upload attachments here, so we only upload once even for multiple recipients
1269             var messageSender = createMessageSender();
1270             var attachmentPointers = new ArrayList<SignalServiceAttachment>(attachmentStreams.size());
1271             for (var attachment : attachmentStreams) {
1272                 if (attachment.isStream()) {
1273                     attachmentPointers.add(messageSender.uploadAttachment(attachment.asStream()));
1274                 } else if (attachment.isPointer()) {
1275                     attachmentPointers.add(attachment.asPointer());
1276                 }
1277             }
1278
1279             messageBuilder.withAttachments(attachmentPointers);
1280         }
1281         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
1282     }
1283
1284     public Pair<Long, SendMessageResult> sendSelfMessage(
1285             String messageText, List<String> attachments
1286     ) throws IOException, AttachmentInvalidException {
1287         final var messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
1288         if (attachments != null) {
1289             messageBuilder.withAttachments(AttachmentUtils.getSignalServiceAttachments(attachments));
1290         }
1291         return sendSelfMessage(messageBuilder);
1292     }
1293
1294     public Pair<Long, List<SendMessageResult>> sendRemoteDeleteMessage(
1295             long targetSentTimestamp, List<String> recipients
1296     ) throws IOException, InvalidNumberException {
1297         var delete = new SignalServiceDataMessage.RemoteDelete(targetSentTimestamp);
1298         final var messageBuilder = SignalServiceDataMessage.newBuilder().withRemoteDelete(delete);
1299         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
1300     }
1301
1302     public Pair<Long, List<SendMessageResult>> sendGroupRemoteDeleteMessage(
1303             long targetSentTimestamp, GroupId groupId
1304     ) throws IOException, NotAGroupMemberException, GroupNotFoundException {
1305         var delete = new SignalServiceDataMessage.RemoteDelete(targetSentTimestamp);
1306         final var messageBuilder = SignalServiceDataMessage.newBuilder().withRemoteDelete(delete);
1307         return sendGroupMessage(messageBuilder, groupId);
1308     }
1309
1310     public Pair<Long, List<SendMessageResult>> sendMessageReaction(
1311             String emoji, boolean remove, String targetAuthor, long targetSentTimestamp, List<String> recipients
1312     ) throws IOException, InvalidNumberException {
1313         var targetAuthorRecipientId = canonicalizeAndResolveRecipient(targetAuthor);
1314         var reaction = new SignalServiceDataMessage.Reaction(emoji,
1315                 remove,
1316                 resolveSignalServiceAddress(targetAuthorRecipientId),
1317                 targetSentTimestamp);
1318         final var messageBuilder = SignalServiceDataMessage.newBuilder().withReaction(reaction);
1319         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
1320     }
1321
1322     public Pair<Long, List<SendMessageResult>> sendEndSessionMessage(List<String> recipients) throws IOException, InvalidNumberException {
1323         var messageBuilder = SignalServiceDataMessage.newBuilder().asEndSessionMessage();
1324
1325         final var signalServiceAddresses = getSignalServiceAddresses(recipients);
1326         try {
1327             return sendMessage(messageBuilder, signalServiceAddresses);
1328         } catch (Exception e) {
1329             for (var address : signalServiceAddresses) {
1330                 handleEndSession(address);
1331             }
1332             throw e;
1333         }
1334     }
1335
1336     void renewSession(RecipientId recipientId) throws IOException {
1337         account.getSessionStore().archiveSessions(recipientId);
1338         if (!recipientId.equals(getSelfRecipientId())) {
1339             sendNullMessage(recipientId);
1340         }
1341     }
1342
1343     public String getContactName(String number) throws InvalidNumberException {
1344         var contact = account.getContactStore().getContact(canonicalizeAndResolveRecipient(number));
1345         return contact == null || contact.getName() == null ? "" : contact.getName();
1346     }
1347
1348     public void setContactName(String number, String name) throws InvalidNumberException, NotMasterDeviceException {
1349         if (!account.isMasterDevice()) {
1350             throw new NotMasterDeviceException();
1351         }
1352         final var recipientId = canonicalizeAndResolveRecipient(number);
1353         var contact = account.getContactStore().getContact(recipientId);
1354         final var builder = contact == null ? Contact.newBuilder() : Contact.newBuilder(contact);
1355         account.getContactStore().storeContact(recipientId, builder.withName(name).build());
1356     }
1357
1358     public void setContactBlocked(
1359             String number, boolean blocked
1360     ) throws InvalidNumberException, NotMasterDeviceException {
1361         if (!account.isMasterDevice()) {
1362             throw new NotMasterDeviceException();
1363         }
1364         setContactBlocked(canonicalizeAndResolveRecipient(number), blocked);
1365     }
1366
1367     private void setContactBlocked(RecipientId recipientId, boolean blocked) {
1368         var contact = account.getContactStore().getContact(recipientId);
1369         final var builder = contact == null ? Contact.newBuilder() : Contact.newBuilder(contact);
1370         account.getContactStore().storeContact(recipientId, builder.withBlocked(blocked).build());
1371     }
1372
1373     public void setGroupBlocked(final GroupId groupId, final boolean blocked) throws GroupNotFoundException {
1374         var group = getGroup(groupId);
1375         if (group == null) {
1376             throw new GroupNotFoundException(groupId);
1377         }
1378
1379         group.setBlocked(blocked);
1380         account.getGroupStore().updateGroup(group);
1381     }
1382
1383     private void setExpirationTimer(RecipientId recipientId, int messageExpirationTimer) {
1384         var contact = account.getContactStore().getContact(recipientId);
1385         if (contact != null && contact.getMessageExpirationTime() == messageExpirationTimer) {
1386             return;
1387         }
1388         final var builder = contact == null ? Contact.newBuilder() : Contact.newBuilder(contact);
1389         account.getContactStore()
1390                 .storeContact(recipientId, builder.withMessageExpirationTime(messageExpirationTimer).build());
1391     }
1392
1393     private void sendExpirationTimerUpdate(RecipientId recipientId) throws IOException {
1394         final var messageBuilder = SignalServiceDataMessage.newBuilder().asExpirationUpdate();
1395         sendMessage(messageBuilder, Set.of(recipientId));
1396     }
1397
1398     /**
1399      * Change the expiration timer for a contact
1400      */
1401     public void setExpirationTimer(
1402             String number, int messageExpirationTimer
1403     ) throws IOException, InvalidNumberException {
1404         var recipientId = canonicalizeAndResolveRecipient(number);
1405         setExpirationTimer(recipientId, messageExpirationTimer);
1406         sendExpirationTimerUpdate(recipientId);
1407     }
1408
1409     /**
1410      * Change the expiration timer for a group
1411      */
1412     private void setExpirationTimer(
1413             GroupInfoV1 groupInfoV1, int messageExpirationTimer
1414     ) throws NotAGroupMemberException, GroupNotFoundException, IOException {
1415         groupInfoV1.messageExpirationTime = messageExpirationTimer;
1416         account.getGroupStore().updateGroup(groupInfoV1);
1417         sendExpirationTimerUpdate(groupInfoV1.getGroupId());
1418     }
1419
1420     private void sendExpirationTimerUpdate(GroupIdV1 groupId) throws IOException, NotAGroupMemberException, GroupNotFoundException {
1421         final var messageBuilder = SignalServiceDataMessage.newBuilder().asExpirationUpdate();
1422         sendGroupMessage(messageBuilder, groupId);
1423     }
1424
1425     /**
1426      * Upload the sticker pack from path.
1427      *
1428      * @param path Path can be a path to a manifest.json file or to a zip file that contains a manifest.json file
1429      * @return if successful, returns the URL to install the sticker pack in the signal app
1430      */
1431     public String uploadStickerPack(File path) throws IOException, StickerPackInvalidException {
1432         var manifest = StickerUtils.getSignalServiceStickerManifestUpload(path);
1433
1434         var messageSender = createMessageSender();
1435
1436         var packKey = KeyUtils.createStickerUploadKey();
1437         var packId = messageSender.uploadStickerManifest(manifest, packKey);
1438
1439         var sticker = new Sticker(StickerPackId.deserialize(Hex.fromStringCondensed(packId)), packKey);
1440         account.getStickerStore().updateSticker(sticker);
1441
1442         try {
1443             return new URI("https",
1444                     "signal.art",
1445                     "/addstickers/",
1446                     "pack_id=" + URLEncoder.encode(packId, StandardCharsets.UTF_8) + "&pack_key=" + URLEncoder.encode(
1447                             Hex.toStringCondensed(packKey),
1448                             StandardCharsets.UTF_8)).toString();
1449         } catch (URISyntaxException e) {
1450             throw new AssertionError(e);
1451         }
1452     }
1453
1454     public void requestAllSyncData() throws IOException {
1455         requestSyncGroups();
1456         requestSyncContacts();
1457         requestSyncBlocked();
1458         requestSyncConfiguration();
1459         requestSyncKeys();
1460     }
1461
1462     private void requestSyncGroups() throws IOException {
1463         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1464                 .setType(SignalServiceProtos.SyncMessage.Request.Type.GROUPS)
1465                 .build();
1466         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1467         try {
1468             sendSyncMessage(message);
1469         } catch (UntrustedIdentityException e) {
1470             throw new AssertionError(e);
1471         }
1472     }
1473
1474     private void requestSyncContacts() throws IOException {
1475         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1476                 .setType(SignalServiceProtos.SyncMessage.Request.Type.CONTACTS)
1477                 .build();
1478         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1479         try {
1480             sendSyncMessage(message);
1481         } catch (UntrustedIdentityException e) {
1482             throw new AssertionError(e);
1483         }
1484     }
1485
1486     private void requestSyncBlocked() throws IOException {
1487         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1488                 .setType(SignalServiceProtos.SyncMessage.Request.Type.BLOCKED)
1489                 .build();
1490         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1491         try {
1492             sendSyncMessage(message);
1493         } catch (UntrustedIdentityException e) {
1494             throw new AssertionError(e);
1495         }
1496     }
1497
1498     private void requestSyncConfiguration() throws IOException {
1499         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1500                 .setType(SignalServiceProtos.SyncMessage.Request.Type.CONFIGURATION)
1501                 .build();
1502         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1503         try {
1504             sendSyncMessage(message);
1505         } catch (UntrustedIdentityException e) {
1506             throw new AssertionError(e);
1507         }
1508     }
1509
1510     private void requestSyncKeys() throws IOException {
1511         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1512                 .setType(SignalServiceProtos.SyncMessage.Request.Type.KEYS)
1513                 .build();
1514         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1515         try {
1516             sendSyncMessage(message);
1517         } catch (UntrustedIdentityException e) {
1518             throw new AssertionError(e);
1519         }
1520     }
1521
1522     private byte[] getSenderCertificate() {
1523         byte[] certificate;
1524         try {
1525             if (account.isPhoneNumberShared()) {
1526                 certificate = accountManager.getSenderCertificate();
1527             } else {
1528                 certificate = accountManager.getSenderCertificateForPhoneNumberPrivacy();
1529             }
1530         } catch (IOException e) {
1531             logger.warn("Failed to get sender certificate, ignoring: {}", e.getMessage());
1532             return null;
1533         }
1534         // TODO cache for a day
1535         return certificate;
1536     }
1537
1538     private void sendSyncMessage(SignalServiceSyncMessage message) throws IOException, UntrustedIdentityException {
1539         var messageSender = createMessageSender();
1540         messageSender.sendSyncMessage(message, unidentifiedAccessHelper.getAccessForSync());
1541     }
1542
1543     private Set<RecipientId> getSignalServiceAddresses(Collection<String> numbers) throws InvalidNumberException {
1544         final var signalServiceAddresses = new HashSet<SignalServiceAddress>(numbers.size());
1545         final var addressesMissingUuid = new HashSet<SignalServiceAddress>();
1546
1547         for (var number : numbers) {
1548             final var resolvedAddress = resolveSignalServiceAddress(canonicalizeAndResolveRecipient(number));
1549             if (resolvedAddress.getUuid().isPresent()) {
1550                 signalServiceAddresses.add(resolvedAddress);
1551             } else {
1552                 addressesMissingUuid.add(resolvedAddress);
1553             }
1554         }
1555
1556         final var numbersMissingUuid = addressesMissingUuid.stream()
1557                 .map(a -> a.getNumber().get())
1558                 .collect(Collectors.toSet());
1559         Map<String, UUID> registeredUsers;
1560         try {
1561             registeredUsers = getRegisteredUsers(numbersMissingUuid);
1562         } catch (IOException e) {
1563             logger.warn("Failed to resolve uuids from server, ignoring: {}", e.getMessage());
1564             registeredUsers = Map.of();
1565         }
1566
1567         for (var address : addressesMissingUuid) {
1568             final var number = address.getNumber().get();
1569             if (registeredUsers.containsKey(number)) {
1570                 final var newAddress = resolveSignalServiceAddress(resolveRecipientTrusted(new SignalServiceAddress(
1571                         registeredUsers.get(number),
1572                         number)));
1573                 signalServiceAddresses.add(newAddress);
1574             } else {
1575                 signalServiceAddresses.add(address);
1576             }
1577         }
1578
1579         return signalServiceAddresses.stream().map(this::resolveRecipient).collect(Collectors.toSet());
1580     }
1581
1582     private RecipientId refreshRegisteredUser(RecipientId recipientId) throws IOException {
1583         final var address = resolveSignalServiceAddress(recipientId);
1584         if (!address.getNumber().isPresent()) {
1585             return recipientId;
1586         }
1587         final var number = address.getNumber().get();
1588         final var uuidMap = getRegisteredUsers(Set.of(number));
1589         return resolveRecipientTrusted(new SignalServiceAddress(uuidMap.getOrDefault(number, null), number));
1590     }
1591
1592     private Map<String, UUID> getRegisteredUsers(final Set<String> numbers) throws IOException {
1593         try {
1594             return accountManager.getRegisteredUsers(ServiceConfig.getIasKeyStore(),
1595                     numbers,
1596                     serviceEnvironmentConfig.getCdsMrenclave());
1597         } catch (Quote.InvalidQuoteFormatException | UnauthenticatedQuoteException | SignatureException | UnauthenticatedResponseException | InvalidKeyException e) {
1598             throw new IOException(e);
1599         }
1600     }
1601
1602     public void sendTypingMessage(
1603             TypingAction action, Set<String> recipients
1604     ) throws IOException, UntrustedIdentityException, InvalidNumberException {
1605         sendTypingMessageInternal(action, getSignalServiceAddresses(recipients));
1606     }
1607
1608     private void sendTypingMessageInternal(
1609             TypingAction action, Set<RecipientId> recipientIds
1610     ) throws IOException, UntrustedIdentityException {
1611         final var timestamp = System.currentTimeMillis();
1612         var message = new SignalServiceTypingMessage(action.toSignalService(), timestamp, Optional.absent());
1613         var messageSender = createMessageSender();
1614         for (var recipientId : recipientIds) {
1615             final var address = resolveSignalServiceAddress(recipientId);
1616             messageSender.sendTyping(address, unidentifiedAccessHelper.getAccessFor(recipientId), message);
1617         }
1618     }
1619
1620     public void sendGroupTypingMessage(
1621             TypingAction action, GroupId groupId
1622     ) throws IOException, NotAGroupMemberException, GroupNotFoundException {
1623         final var timestamp = System.currentTimeMillis();
1624         final var g = getGroupForSending(groupId);
1625         final var message = new SignalServiceTypingMessage(action.toSignalService(),
1626                 timestamp,
1627                 Optional.of(groupId.serialize()));
1628         final var messageSender = createMessageSender();
1629         final var recipientIdList = new ArrayList<>(g.getMembersWithout(account.getSelfRecipientId()));
1630         final var addresses = recipientIdList.stream()
1631                 .map(this::resolveSignalServiceAddress)
1632                 .collect(Collectors.toList());
1633         messageSender.sendTyping(addresses, unidentifiedAccessHelper.getAccessFor(recipientIdList), message, null);
1634     }
1635
1636     private Pair<Long, List<SendMessageResult>> sendMessage(
1637             SignalServiceDataMessage.Builder messageBuilder, Set<RecipientId> recipientIds
1638     ) throws IOException {
1639         final var timestamp = System.currentTimeMillis();
1640         messageBuilder.withTimestamp(timestamp);
1641         getOrCreateMessagePipe();
1642         getOrCreateUnidentifiedMessagePipe();
1643         SignalServiceDataMessage message = null;
1644         try {
1645             message = messageBuilder.build();
1646             if (message.getGroupContext().isPresent()) {
1647                 try {
1648                     var messageSender = createMessageSender();
1649                     final var isRecipientUpdate = false;
1650                     final var recipientIdList = new ArrayList<>(recipientIds);
1651                     final var addresses = recipientIdList.stream()
1652                             .map(this::resolveSignalServiceAddress)
1653                             .collect(Collectors.toList());
1654                     var result = messageSender.sendDataMessage(addresses,
1655                             unidentifiedAccessHelper.getAccessFor(recipientIdList),
1656                             isRecipientUpdate,
1657                             ContentHint.DEFAULT,
1658                             message);
1659
1660                     for (var r : result) {
1661                         if (r.getIdentityFailure() != null) {
1662                             final var recipientId = resolveRecipient(r.getAddress());
1663                             final var newIdentity = account.getIdentityKeyStore()
1664                                     .saveIdentity(recipientId, r.getIdentityFailure().getIdentityKey(), new Date());
1665                             if (newIdentity) {
1666                                 account.getSessionStore().archiveSessions(recipientId);
1667                             }
1668                         }
1669                     }
1670
1671                     return new Pair<>(timestamp, result);
1672                 } catch (UntrustedIdentityException e) {
1673                     return new Pair<>(timestamp, List.of());
1674                 }
1675             } else {
1676                 // Send to all individually, so sync messages are sent correctly
1677                 messageBuilder.withProfileKey(account.getProfileKey().serialize());
1678                 var results = new ArrayList<SendMessageResult>(recipientIds.size());
1679                 for (var recipientId : recipientIds) {
1680                     final var contact = account.getContactStore().getContact(recipientId);
1681                     final var expirationTime = contact != null ? contact.getMessageExpirationTime() : 0;
1682                     messageBuilder.withExpiration(expirationTime);
1683                     message = messageBuilder.build();
1684                     results.add(sendMessage(recipientId, message));
1685                 }
1686                 return new Pair<>(timestamp, results);
1687             }
1688         } finally {
1689             if (message != null && message.isEndSession()) {
1690                 for (var recipient : recipientIds) {
1691                     handleEndSession(recipient);
1692                 }
1693             }
1694         }
1695     }
1696
1697     private Pair<Long, SendMessageResult> sendSelfMessage(
1698             SignalServiceDataMessage.Builder messageBuilder
1699     ) throws IOException {
1700         final var timestamp = System.currentTimeMillis();
1701         messageBuilder.withTimestamp(timestamp);
1702         getOrCreateMessagePipe();
1703         getOrCreateUnidentifiedMessagePipe();
1704         final var recipientId = account.getSelfRecipientId();
1705
1706         final var contact = account.getContactStore().getContact(recipientId);
1707         final var expirationTime = contact != null ? contact.getMessageExpirationTime() : 0;
1708         messageBuilder.withExpiration(expirationTime);
1709
1710         var message = messageBuilder.build();
1711         final var result = sendSelfMessage(message);
1712         return new Pair<>(timestamp, result);
1713     }
1714
1715     private SendMessageResult sendSelfMessage(SignalServiceDataMessage message) throws IOException {
1716         var messageSender = createMessageSender();
1717
1718         var recipientId = account.getSelfRecipientId();
1719
1720         final var unidentifiedAccess = unidentifiedAccessHelper.getAccessFor(recipientId);
1721         var recipient = resolveSignalServiceAddress(recipientId);
1722         var transcript = new SentTranscriptMessage(Optional.of(recipient),
1723                 message.getTimestamp(),
1724                 message,
1725                 message.getExpiresInSeconds(),
1726                 Map.of(recipient, unidentifiedAccess.isPresent()),
1727                 false);
1728         var syncMessage = SignalServiceSyncMessage.forSentTranscript(transcript);
1729
1730         try {
1731             var startTime = System.currentTimeMillis();
1732             messageSender.sendSyncMessage(syncMessage, unidentifiedAccess);
1733             return SendMessageResult.success(recipient,
1734                     unidentifiedAccess.isPresent(),
1735                     false,
1736                     System.currentTimeMillis() - startTime);
1737         } catch (UntrustedIdentityException e) {
1738             return SendMessageResult.identityFailure(recipient, e.getIdentityKey());
1739         }
1740     }
1741
1742     private SendMessageResult sendMessage(
1743             RecipientId recipientId, SignalServiceDataMessage message
1744     ) throws IOException {
1745         var messageSender = createMessageSender();
1746
1747         final var address = resolveSignalServiceAddress(recipientId);
1748         try {
1749             try {
1750                 return messageSender.sendDataMessage(address,
1751                         unidentifiedAccessHelper.getAccessFor(recipientId),
1752                         ContentHint.DEFAULT,
1753                         message);
1754             } catch (UnregisteredUserException e) {
1755                 final var newRecipientId = refreshRegisteredUser(recipientId);
1756                 return messageSender.sendDataMessage(resolveSignalServiceAddress(newRecipientId),
1757                         unidentifiedAccessHelper.getAccessFor(newRecipientId),
1758                         ContentHint.DEFAULT,
1759                         message);
1760             }
1761         } catch (UntrustedIdentityException e) {
1762             return SendMessageResult.identityFailure(address, e.getIdentityKey());
1763         }
1764     }
1765
1766     private SendMessageResult sendNullMessage(RecipientId recipientId) throws IOException {
1767         var messageSender = createMessageSender();
1768
1769         final var address = resolveSignalServiceAddress(recipientId);
1770         try {
1771             try {
1772                 return messageSender.sendNullMessage(address, unidentifiedAccessHelper.getAccessFor(recipientId));
1773             } catch (UnregisteredUserException e) {
1774                 final var newRecipientId = refreshRegisteredUser(recipientId);
1775                 final var newAddress = resolveSignalServiceAddress(newRecipientId);
1776                 return messageSender.sendNullMessage(newAddress, unidentifiedAccessHelper.getAccessFor(newRecipientId));
1777             }
1778         } catch (UntrustedIdentityException e) {
1779             return SendMessageResult.identityFailure(address, e.getIdentityKey());
1780         }
1781     }
1782
1783     private SignalServiceContent decryptMessage(SignalServiceEnvelope envelope) throws InvalidMetadataMessageException, ProtocolInvalidMessageException, ProtocolDuplicateMessageException, ProtocolLegacyMessageException, ProtocolInvalidKeyIdException, InvalidMetadataVersionException, ProtocolInvalidVersionException, ProtocolNoSessionException, ProtocolInvalidKeyException, SelfSendException, UnsupportedDataMessageException, ProtocolUntrustedIdentityException {
1784         var cipher = new SignalServiceCipher(account.getSelfAddress(),
1785                 account.getSignalProtocolStore(),
1786                 sessionLock,
1787                 certificateValidator);
1788         return cipher.decrypt(envelope);
1789     }
1790
1791     private void handleEndSession(RecipientId recipientId) {
1792         account.getSessionStore().deleteAllSessions(recipientId);
1793     }
1794
1795     private List<HandleAction> handleSignalServiceDataMessage(
1796             SignalServiceDataMessage message,
1797             boolean isSync,
1798             SignalServiceAddress source,
1799             SignalServiceAddress destination,
1800             boolean ignoreAttachments
1801     ) {
1802         var actions = new ArrayList<HandleAction>();
1803         if (message.getGroupContext().isPresent()) {
1804             if (message.getGroupContext().get().getGroupV1().isPresent()) {
1805                 var groupInfo = message.getGroupContext().get().getGroupV1().get();
1806                 var groupId = GroupId.v1(groupInfo.getGroupId());
1807                 var group = getGroup(groupId);
1808                 if (group == null || group instanceof GroupInfoV1) {
1809                     var groupV1 = (GroupInfoV1) group;
1810                     switch (groupInfo.getType()) {
1811                         case UPDATE: {
1812                             if (groupV1 == null) {
1813                                 groupV1 = new GroupInfoV1(groupId);
1814                             }
1815
1816                             if (groupInfo.getAvatar().isPresent()) {
1817                                 var avatar = groupInfo.getAvatar().get();
1818                                 downloadGroupAvatar(avatar, groupV1.getGroupId());
1819                             }
1820
1821                             if (groupInfo.getName().isPresent()) {
1822                                 groupV1.name = groupInfo.getName().get();
1823                             }
1824
1825                             if (groupInfo.getMembers().isPresent()) {
1826                                 groupV1.addMembers(groupInfo.getMembers()
1827                                         .get()
1828                                         .stream()
1829                                         .map(this::resolveRecipient)
1830                                         .collect(Collectors.toSet()));
1831                             }
1832
1833                             account.getGroupStore().updateGroup(groupV1);
1834                             break;
1835                         }
1836                         case DELIVER:
1837                             if (groupV1 == null && !isSync) {
1838                                 actions.add(new SendGroupInfoRequestAction(source, groupId));
1839                             }
1840                             break;
1841                         case QUIT: {
1842                             if (groupV1 != null) {
1843                                 groupV1.removeMember(resolveRecipient(source));
1844                                 account.getGroupStore().updateGroup(groupV1);
1845                             }
1846                             break;
1847                         }
1848                         case REQUEST_INFO:
1849                             if (groupV1 != null && !isSync) {
1850                                 actions.add(new SendGroupInfoAction(source, groupV1.getGroupId()));
1851                             }
1852                             break;
1853                     }
1854                 } else {
1855                     // Received a group v1 message for a v2 group
1856                 }
1857             }
1858             if (message.getGroupContext().get().getGroupV2().isPresent()) {
1859                 final var groupContext = message.getGroupContext().get().getGroupV2().get();
1860                 final var groupMasterKey = groupContext.getMasterKey();
1861
1862                 getOrMigrateGroup(groupMasterKey,
1863                         groupContext.getRevision(),
1864                         groupContext.hasSignedGroupChange() ? groupContext.getSignedGroupChange() : null);
1865             }
1866         }
1867
1868         final var conversationPartnerAddress = isSync ? destination : source;
1869         if (conversationPartnerAddress != null && message.isEndSession()) {
1870             handleEndSession(resolveRecipient(conversationPartnerAddress));
1871         }
1872         if (message.isExpirationUpdate() || message.getBody().isPresent()) {
1873             if (message.getGroupContext().isPresent()) {
1874                 if (message.getGroupContext().get().getGroupV1().isPresent()) {
1875                     var groupInfo = message.getGroupContext().get().getGroupV1().get();
1876                     var group = account.getGroupStore().getOrCreateGroupV1(GroupId.v1(groupInfo.getGroupId()));
1877                     if (group != null) {
1878                         if (group.messageExpirationTime != message.getExpiresInSeconds()) {
1879                             group.messageExpirationTime = message.getExpiresInSeconds();
1880                             account.getGroupStore().updateGroup(group);
1881                         }
1882                     }
1883                 } else if (message.getGroupContext().get().getGroupV2().isPresent()) {
1884                     // disappearing message timer already stored in the DecryptedGroup
1885                 }
1886             } else if (conversationPartnerAddress != null) {
1887                 setExpirationTimer(resolveRecipient(conversationPartnerAddress), message.getExpiresInSeconds());
1888             }
1889         }
1890         if (!ignoreAttachments) {
1891             if (message.getAttachments().isPresent()) {
1892                 for (var attachment : message.getAttachments().get()) {
1893                     downloadAttachment(attachment);
1894                 }
1895             }
1896             if (message.getSharedContacts().isPresent()) {
1897                 for (var contact : message.getSharedContacts().get()) {
1898                     if (contact.getAvatar().isPresent()) {
1899                         downloadAttachment(contact.getAvatar().get().getAttachment());
1900                     }
1901                 }
1902             }
1903         }
1904         if (message.getProfileKey().isPresent() && message.getProfileKey().get().length == 32) {
1905             final ProfileKey profileKey;
1906             try {
1907                 profileKey = new ProfileKey(message.getProfileKey().get());
1908             } catch (InvalidInputException e) {
1909                 throw new AssertionError(e);
1910             }
1911             if (source.matches(account.getSelfAddress())) {
1912                 this.account.setProfileKey(profileKey);
1913             }
1914             this.account.getProfileStore().storeProfileKey(resolveRecipient(source), profileKey);
1915         }
1916         if (message.getPreviews().isPresent()) {
1917             final var previews = message.getPreviews().get();
1918             for (var preview : previews) {
1919                 if (preview.getImage().isPresent()) {
1920                     downloadAttachment(preview.getImage().get());
1921                 }
1922             }
1923         }
1924         if (message.getQuote().isPresent()) {
1925             final var quote = message.getQuote().get();
1926
1927             for (var quotedAttachment : quote.getAttachments()) {
1928                 final var thumbnail = quotedAttachment.getThumbnail();
1929                 if (thumbnail != null) {
1930                     downloadAttachment(thumbnail);
1931                 }
1932             }
1933         }
1934         if (message.getSticker().isPresent()) {
1935             final var messageSticker = message.getSticker().get();
1936             final var stickerPackId = StickerPackId.deserialize(messageSticker.getPackId());
1937             var sticker = account.getStickerStore().getSticker(stickerPackId);
1938             if (sticker == null) {
1939                 sticker = new Sticker(stickerPackId, messageSticker.getPackKey());
1940                 account.getStickerStore().updateSticker(sticker);
1941             }
1942         }
1943         return actions;
1944     }
1945
1946     private GroupInfoV2 getOrMigrateGroup(
1947             final GroupMasterKey groupMasterKey, final int revision, final byte[] signedGroupChange
1948     ) {
1949         final var groupSecretParams = GroupSecretParams.deriveFromMasterKey(groupMasterKey);
1950
1951         var groupId = GroupUtils.getGroupIdV2(groupSecretParams);
1952         var groupInfo = getGroup(groupId);
1953         final GroupInfoV2 groupInfoV2;
1954         if (groupInfo instanceof GroupInfoV1) {
1955             // Received a v2 group message for a v1 group, we need to locally migrate the group
1956             account.getGroupStore().deleteGroupV1(((GroupInfoV1) groupInfo).getGroupId());
1957             groupInfoV2 = new GroupInfoV2(groupId, groupMasterKey);
1958             logger.info("Locally migrated group {} to group v2, id: {}",
1959                     groupInfo.getGroupId().toBase64(),
1960                     groupInfoV2.getGroupId().toBase64());
1961         } else if (groupInfo instanceof GroupInfoV2) {
1962             groupInfoV2 = (GroupInfoV2) groupInfo;
1963         } else {
1964             groupInfoV2 = new GroupInfoV2(groupId, groupMasterKey);
1965         }
1966
1967         if (groupInfoV2.getGroup() == null || groupInfoV2.getGroup().getRevision() < revision) {
1968             DecryptedGroup group = null;
1969             if (signedGroupChange != null
1970                     && groupInfoV2.getGroup() != null
1971                     && groupInfoV2.getGroup().getRevision() + 1 == revision) {
1972                 group = groupV2Helper.getUpdatedDecryptedGroup(groupInfoV2.getGroup(),
1973                         signedGroupChange,
1974                         groupMasterKey);
1975             }
1976             if (group == null) {
1977                 group = groupV2Helper.getDecryptedGroup(groupSecretParams);
1978             }
1979             if (group != null) {
1980                 storeProfileKeysFromMembers(group);
1981                 final var avatar = group.getAvatar();
1982                 if (avatar != null && !avatar.isEmpty()) {
1983                     downloadGroupAvatar(groupId, groupSecretParams, avatar);
1984                 }
1985             }
1986             groupInfoV2.setGroup(group, this::resolveRecipient);
1987             account.getGroupStore().updateGroup(groupInfoV2);
1988         }
1989
1990         return groupInfoV2;
1991     }
1992
1993     private void storeProfileKeysFromMembers(final DecryptedGroup group) {
1994         for (var member : group.getMembersList()) {
1995             final var uuid = UuidUtil.parseOrThrow(member.getUuid().toByteArray());
1996             final var recipientId = account.getRecipientStore().resolveRecipient(uuid);
1997             try {
1998                 account.getProfileStore()
1999                         .storeProfileKey(recipientId, new ProfileKey(member.getProfileKey().toByteArray()));
2000             } catch (InvalidInputException ignored) {
2001             }
2002         }
2003     }
2004
2005     private void retryFailedReceivedMessages(ReceiveMessageHandler handler, boolean ignoreAttachments) {
2006         Set<HandleAction> queuedActions = new HashSet<>();
2007         for (var cachedMessage : account.getMessageCache().getCachedMessages()) {
2008             var actions = retryFailedReceivedMessage(handler, ignoreAttachments, cachedMessage);
2009             if (actions != null) {
2010                 queuedActions.addAll(actions);
2011             }
2012         }
2013         for (var action : queuedActions) {
2014             try {
2015                 action.execute(this);
2016             } catch (Throwable e) {
2017                 logger.warn("Message action failed.", e);
2018             }
2019         }
2020     }
2021
2022     private List<HandleAction> retryFailedReceivedMessage(
2023             final ReceiveMessageHandler handler, final boolean ignoreAttachments, final CachedMessage cachedMessage
2024     ) {
2025         var envelope = cachedMessage.loadEnvelope();
2026         if (envelope == null) {
2027             return null;
2028         }
2029         SignalServiceContent content = null;
2030         List<HandleAction> actions = null;
2031         if (!envelope.isReceipt()) {
2032             try {
2033                 content = decryptMessage(envelope);
2034             } catch (ProtocolUntrustedIdentityException e) {
2035                 if (!envelope.hasSource()) {
2036                     final var identifier = e.getSender();
2037                     final var recipientId = resolveRecipient(identifier);
2038                     try {
2039                         account.getMessageCache().replaceSender(cachedMessage, recipientId);
2040                     } catch (IOException ioException) {
2041                         logger.warn("Failed to move cached message to recipient folder: {}", ioException.getMessage());
2042                     }
2043                 }
2044                 return null;
2045             } catch (Exception er) {
2046                 // All other errors are not recoverable, so delete the cached message
2047                 cachedMessage.delete();
2048                 return null;
2049             }
2050             actions = handleMessage(envelope, content, ignoreAttachments);
2051         }
2052         handler.handleMessage(envelope, content, null);
2053         cachedMessage.delete();
2054         return actions;
2055     }
2056
2057     public void receiveMessages(
2058             long timeout,
2059             TimeUnit unit,
2060             boolean returnOnTimeout,
2061             boolean ignoreAttachments,
2062             ReceiveMessageHandler handler
2063     ) throws IOException {
2064         retryFailedReceivedMessages(handler, ignoreAttachments);
2065
2066         Set<HandleAction> queuedActions = null;
2067
2068         final var messagePipe = getOrCreateMessagePipe();
2069
2070         var hasCaughtUpWithOldMessages = false;
2071
2072         while (true) {
2073             SignalServiceEnvelope envelope;
2074             SignalServiceContent content = null;
2075             Exception exception = null;
2076             final CachedMessage[] cachedMessage = {null};
2077             account.setLastReceiveTimestamp(System.currentTimeMillis());
2078             logger.debug("Checking for new message from server");
2079             try {
2080                 var result = messagePipe.readOrEmpty(timeout, unit, envelope1 -> {
2081                     final var recipientId = envelope1.hasSource()
2082                             ? resolveRecipient(envelope1.getSourceIdentifier())
2083                             : null;
2084                     // store message on disk, before acknowledging receipt to the server
2085                     cachedMessage[0] = account.getMessageCache().cacheMessage(envelope1, recipientId);
2086                 });
2087                 logger.debug("New message received from server");
2088                 if (result.isPresent()) {
2089                     envelope = result.get();
2090                 } else {
2091                     // Received indicator that server queue is empty
2092                     hasCaughtUpWithOldMessages = true;
2093
2094                     if (queuedActions != null) {
2095                         for (var action : queuedActions) {
2096                             try {
2097                                 action.execute(this);
2098                             } catch (Throwable e) {
2099                                 logger.warn("Message action failed.", e);
2100                             }
2101                         }
2102                         queuedActions.clear();
2103                         queuedActions = null;
2104                     }
2105
2106                     // Continue to wait another timeout for new messages
2107                     continue;
2108                 }
2109             } catch (TimeoutException e) {
2110                 if (returnOnTimeout) return;
2111                 continue;
2112             }
2113
2114             if (envelope.hasSource()) {
2115                 // Store uuid if we don't have it already
2116                 // address/uuid in envelope is sent by server
2117                 resolveRecipientTrusted(envelope.getSourceAddress());
2118             }
2119             final var notAGroupMember = isNotAGroupMember(envelope, content);
2120             if (!envelope.isReceipt()) {
2121                 try {
2122                     content = decryptMessage(envelope);
2123                 } catch (Exception e) {
2124                     exception = e;
2125                 }
2126                 if (!envelope.hasSource() && content != null) {
2127                     // Store uuid if we don't have it already
2128                     // address/uuid is validated by unidentified sender certificate
2129                     resolveRecipientTrusted(content.getSender());
2130                 }
2131                 var actions = handleMessage(envelope, content, ignoreAttachments);
2132                 if (exception instanceof ProtocolInvalidMessageException) {
2133                     final var sender = resolveRecipient(((ProtocolInvalidMessageException) exception).getSender());
2134                     logger.debug("Received invalid message, queuing renew session action.");
2135                     actions.add(new RenewSessionAction(sender));
2136                 }
2137                 if (hasCaughtUpWithOldMessages) {
2138                     for (var action : actions) {
2139                         try {
2140                             action.execute(this);
2141                         } catch (Throwable e) {
2142                             logger.warn("Message action failed.", e);
2143                         }
2144                     }
2145                 } else {
2146                     if (queuedActions == null) {
2147                         queuedActions = new HashSet<>();
2148                     }
2149                     queuedActions.addAll(actions);
2150                 }
2151             }
2152             if (isMessageBlocked(envelope, content)) {
2153                 logger.info("Ignoring a message from blocked user/group: {}", envelope.getTimestamp());
2154             } else if (notAGroupMember) {
2155                 logger.info("Ignoring a message from a non group member: {}", envelope.getTimestamp());
2156             } else {
2157                 handler.handleMessage(envelope, content, exception);
2158             }
2159             if (cachedMessage[0] != null) {
2160                 if (exception instanceof ProtocolUntrustedIdentityException) {
2161                     final var identifier = ((ProtocolUntrustedIdentityException) exception).getSender();
2162                     final var recipientId = resolveRecipient(identifier);
2163                     queuedActions.add(new RetrieveProfileAction(recipientId));
2164                     if (!envelope.hasSource()) {
2165                         try {
2166                             cachedMessage[0] = account.getMessageCache().replaceSender(cachedMessage[0], recipientId);
2167                         } catch (IOException ioException) {
2168                             logger.warn("Failed to move cached message to recipient folder: {}",
2169                                     ioException.getMessage());
2170                         }
2171                     }
2172                 } else {
2173                     cachedMessage[0].delete();
2174                 }
2175             }
2176         }
2177     }
2178
2179     private boolean isMessageBlocked(
2180             SignalServiceEnvelope envelope, SignalServiceContent content
2181     ) {
2182         SignalServiceAddress source;
2183         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
2184             source = envelope.getSourceAddress();
2185         } else if (content != null) {
2186             source = content.getSender();
2187         } else {
2188             return false;
2189         }
2190         final var recipientId = resolveRecipient(source);
2191         if (isContactBlocked(recipientId)) {
2192             return true;
2193         }
2194
2195         if (content != null && content.getDataMessage().isPresent()) {
2196             var message = content.getDataMessage().get();
2197             if (message.getGroupContext().isPresent()) {
2198                 var groupId = GroupUtils.getGroupId(message.getGroupContext().get());
2199                 var group = getGroup(groupId);
2200                 if (group != null && group.isBlocked()) {
2201                     return true;
2202                 }
2203             }
2204         }
2205         return false;
2206     }
2207
2208     public boolean isContactBlocked(final String identifier) throws InvalidNumberException {
2209         final var recipientId = canonicalizeAndResolveRecipient(identifier);
2210         return isContactBlocked(recipientId);
2211     }
2212
2213     private boolean isContactBlocked(final RecipientId recipientId) {
2214         var sourceContact = account.getContactStore().getContact(recipientId);
2215         return sourceContact != null && sourceContact.isBlocked();
2216     }
2217
2218     private boolean isNotAGroupMember(
2219             SignalServiceEnvelope envelope, SignalServiceContent content
2220     ) {
2221         SignalServiceAddress source;
2222         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
2223             source = envelope.getSourceAddress();
2224         } else if (content != null) {
2225             source = content.getSender();
2226         } else {
2227             return false;
2228         }
2229
2230         if (content != null && content.getDataMessage().isPresent()) {
2231             var message = content.getDataMessage().get();
2232             if (message.getGroupContext().isPresent()) {
2233                 if (message.getGroupContext().get().getGroupV1().isPresent()) {
2234                     var groupInfo = message.getGroupContext().get().getGroupV1().get();
2235                     if (groupInfo.getType() == SignalServiceGroup.Type.QUIT) {
2236                         return false;
2237                     }
2238                 }
2239                 var groupId = GroupUtils.getGroupId(message.getGroupContext().get());
2240                 var group = getGroup(groupId);
2241                 if (group != null && !group.isMember(resolveRecipient(source))) {
2242                     return true;
2243                 }
2244             }
2245         }
2246         return false;
2247     }
2248
2249     private List<HandleAction> handleMessage(
2250             SignalServiceEnvelope envelope, SignalServiceContent content, boolean ignoreAttachments
2251     ) {
2252         var actions = new ArrayList<HandleAction>();
2253         if (content != null) {
2254             final SignalServiceAddress sender;
2255             if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
2256                 sender = envelope.getSourceAddress();
2257             } else {
2258                 sender = content.getSender();
2259             }
2260
2261             if (content.getDataMessage().isPresent()) {
2262                 var message = content.getDataMessage().get();
2263
2264                 if (content.isNeedsReceipt()) {
2265                     actions.add(new SendReceiptAction(sender, message.getTimestamp()));
2266                 }
2267
2268                 actions.addAll(handleSignalServiceDataMessage(message,
2269                         false,
2270                         sender,
2271                         account.getSelfAddress(),
2272                         ignoreAttachments));
2273             }
2274             if (content.getSyncMessage().isPresent()) {
2275                 account.setMultiDevice(true);
2276                 var syncMessage = content.getSyncMessage().get();
2277                 if (syncMessage.getSent().isPresent()) {
2278                     var message = syncMessage.getSent().get();
2279                     final var destination = message.getDestination().orNull();
2280                     actions.addAll(handleSignalServiceDataMessage(message.getMessage(),
2281                             true,
2282                             sender,
2283                             destination,
2284                             ignoreAttachments));
2285                 }
2286                 if (syncMessage.getRequest().isPresent() && account.isMasterDevice()) {
2287                     var rm = syncMessage.getRequest().get();
2288                     if (rm.isContactsRequest()) {
2289                         actions.add(SendSyncContactsAction.create());
2290                     }
2291                     if (rm.isGroupsRequest()) {
2292                         actions.add(SendSyncGroupsAction.create());
2293                     }
2294                     if (rm.isBlockedListRequest()) {
2295                         actions.add(SendSyncBlockedListAction.create());
2296                     }
2297                     // TODO Handle rm.isConfigurationRequest(); rm.isKeysRequest();
2298                 }
2299                 if (syncMessage.getGroups().isPresent()) {
2300                     File tmpFile = null;
2301                     try {
2302                         tmpFile = IOUtils.createTempFile();
2303                         final var groupsMessage = syncMessage.getGroups().get();
2304                         try (var attachmentAsStream = retrieveAttachmentAsStream(groupsMessage.asPointer(), tmpFile)) {
2305                             var s = new DeviceGroupsInputStream(attachmentAsStream);
2306                             DeviceGroup g;
2307                             while (true) {
2308                                 try {
2309                                     g = s.read();
2310                                 } catch (IOException e) {
2311                                     logger.warn("Sync groups contained invalid group, ignoring: {}", e.getMessage());
2312                                     continue;
2313                                 }
2314                                 if (g == null) {
2315                                     break;
2316                                 }
2317                                 var syncGroup = account.getGroupStore().getOrCreateGroupV1(GroupId.v1(g.getId()));
2318                                 if (syncGroup != null) {
2319                                     if (g.getName().isPresent()) {
2320                                         syncGroup.name = g.getName().get();
2321                                     }
2322                                     syncGroup.addMembers(g.getMembers()
2323                                             .stream()
2324                                             .map(this::resolveRecipient)
2325                                             .collect(Collectors.toSet()));
2326                                     if (!g.isActive()) {
2327                                         syncGroup.removeMember(account.getSelfRecipientId());
2328                                     } else {
2329                                         // Add ourself to the member set as it's marked as active
2330                                         syncGroup.addMembers(List.of(account.getSelfRecipientId()));
2331                                     }
2332                                     syncGroup.blocked = g.isBlocked();
2333                                     if (g.getColor().isPresent()) {
2334                                         syncGroup.color = g.getColor().get();
2335                                     }
2336
2337                                     if (g.getAvatar().isPresent()) {
2338                                         downloadGroupAvatar(g.getAvatar().get(), syncGroup.getGroupId());
2339                                     }
2340                                     syncGroup.archived = g.isArchived();
2341                                     account.getGroupStore().updateGroup(syncGroup);
2342                                 }
2343                             }
2344                         }
2345                     } catch (Exception e) {
2346                         logger.warn("Failed to handle received sync groups “{}”, ignoring: {}",
2347                                 tmpFile,
2348                                 e.getMessage());
2349                     } finally {
2350                         if (tmpFile != null) {
2351                             try {
2352                                 Files.delete(tmpFile.toPath());
2353                             } catch (IOException e) {
2354                                 logger.warn("Failed to delete received groups temp file “{}”, ignoring: {}",
2355                                         tmpFile,
2356                                         e.getMessage());
2357                             }
2358                         }
2359                     }
2360                 }
2361                 if (syncMessage.getBlockedList().isPresent()) {
2362                     final var blockedListMessage = syncMessage.getBlockedList().get();
2363                     for (var address : blockedListMessage.getAddresses()) {
2364                         setContactBlocked(resolveRecipient(address), true);
2365                     }
2366                     for (var groupId : blockedListMessage.getGroupIds()
2367                             .stream()
2368                             .map(GroupId::unknownVersion)
2369                             .collect(Collectors.toSet())) {
2370                         try {
2371                             setGroupBlocked(groupId, true);
2372                         } catch (GroupNotFoundException e) {
2373                             logger.warn("BlockedListMessage contained groupID that was not found in GroupStore: {}",
2374                                     groupId.toBase64());
2375                         }
2376                     }
2377                 }
2378                 if (syncMessage.getContacts().isPresent()) {
2379                     File tmpFile = null;
2380                     try {
2381                         tmpFile = IOUtils.createTempFile();
2382                         final var contactsMessage = syncMessage.getContacts().get();
2383                         try (var attachmentAsStream = retrieveAttachmentAsStream(contactsMessage.getContactsStream()
2384                                 .asPointer(), tmpFile)) {
2385                             var s = new DeviceContactsInputStream(attachmentAsStream);
2386                             DeviceContact c;
2387                             while (true) {
2388                                 try {
2389                                     c = s.read();
2390                                 } catch (IOException e) {
2391                                     logger.warn("Sync contacts contained invalid contact, ignoring: {}",
2392                                             e.getMessage());
2393                                     continue;
2394                                 }
2395                                 if (c == null) {
2396                                     break;
2397                                 }
2398                                 if (c.getAddress().matches(account.getSelfAddress()) && c.getProfileKey().isPresent()) {
2399                                     account.setProfileKey(c.getProfileKey().get());
2400                                 }
2401                                 final var recipientId = resolveRecipientTrusted(c.getAddress());
2402                                 var contact = account.getContactStore().getContact(recipientId);
2403                                 final var builder = contact == null
2404                                         ? Contact.newBuilder()
2405                                         : Contact.newBuilder(contact);
2406                                 if (c.getName().isPresent()) {
2407                                     builder.withName(c.getName().get());
2408                                 }
2409                                 if (c.getColor().isPresent()) {
2410                                     builder.withColor(c.getColor().get());
2411                                 }
2412                                 if (c.getProfileKey().isPresent()) {
2413                                     account.getProfileStore().storeProfileKey(recipientId, c.getProfileKey().get());
2414                                 }
2415                                 if (c.getVerified().isPresent()) {
2416                                     final var verifiedMessage = c.getVerified().get();
2417                                     account.getIdentityKeyStore()
2418                                             .setIdentityTrustLevel(resolveRecipientTrusted(verifiedMessage.getDestination()),
2419                                                     verifiedMessage.getIdentityKey(),
2420                                                     TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
2421                                 }
2422                                 if (c.getExpirationTimer().isPresent()) {
2423                                     builder.withMessageExpirationTime(c.getExpirationTimer().get());
2424                                 }
2425                                 builder.withBlocked(c.isBlocked());
2426                                 builder.withArchived(c.isArchived());
2427                                 account.getContactStore().storeContact(recipientId, builder.build());
2428
2429                                 if (c.getAvatar().isPresent()) {
2430                                     downloadContactAvatar(c.getAvatar().get(), c.getAddress());
2431                                 }
2432                             }
2433                         }
2434                     } catch (Exception e) {
2435                         logger.warn("Failed to handle received sync contacts “{}”, ignoring: {}",
2436                                 tmpFile,
2437                                 e.getMessage());
2438                     } finally {
2439                         if (tmpFile != null) {
2440                             try {
2441                                 Files.delete(tmpFile.toPath());
2442                             } catch (IOException e) {
2443                                 logger.warn("Failed to delete received contacts temp file “{}”, ignoring: {}",
2444                                         tmpFile,
2445                                         e.getMessage());
2446                             }
2447                         }
2448                     }
2449                 }
2450                 if (syncMessage.getVerified().isPresent()) {
2451                     final var verifiedMessage = syncMessage.getVerified().get();
2452                     account.getIdentityKeyStore()
2453                             .setIdentityTrustLevel(resolveRecipientTrusted(verifiedMessage.getDestination()),
2454                                     verifiedMessage.getIdentityKey(),
2455                                     TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
2456                 }
2457                 if (syncMessage.getStickerPackOperations().isPresent()) {
2458                     final var stickerPackOperationMessages = syncMessage.getStickerPackOperations().get();
2459                     for (var m : stickerPackOperationMessages) {
2460                         if (!m.getPackId().isPresent()) {
2461                             continue;
2462                         }
2463                         final var stickerPackId = StickerPackId.deserialize(m.getPackId().get());
2464                         var sticker = account.getStickerStore().getSticker(stickerPackId);
2465                         if (sticker == null) {
2466                             if (!m.getPackKey().isPresent()) {
2467                                 continue;
2468                             }
2469                             sticker = new Sticker(stickerPackId, m.getPackKey().get());
2470                         }
2471                         sticker.setInstalled(!m.getType().isPresent()
2472                                 || m.getType().get() == StickerPackOperationMessage.Type.INSTALL);
2473                         account.getStickerStore().updateSticker(sticker);
2474                     }
2475                 }
2476                 if (syncMessage.getFetchType().isPresent()) {
2477                     switch (syncMessage.getFetchType().get()) {
2478                         case LOCAL_PROFILE:
2479                             getRecipientProfile(account.getSelfRecipientId(), true);
2480                         case STORAGE_MANIFEST:
2481                             // TODO
2482                     }
2483                 }
2484                 if (syncMessage.getKeys().isPresent()) {
2485                     final var keysMessage = syncMessage.getKeys().get();
2486                     if (keysMessage.getStorageService().isPresent()) {
2487                         final var storageKey = keysMessage.getStorageService().get();
2488                         account.setStorageKey(storageKey);
2489                     }
2490                 }
2491                 if (syncMessage.getConfiguration().isPresent()) {
2492                     // TODO
2493                 }
2494             }
2495         }
2496         return actions;
2497     }
2498
2499     private void downloadContactAvatar(SignalServiceAttachment avatar, SignalServiceAddress address) {
2500         try {
2501             avatarStore.storeContactAvatar(address, outputStream -> retrieveAttachment(avatar, outputStream));
2502         } catch (IOException e) {
2503             logger.warn("Failed to download avatar for contact {}, ignoring: {}", address, e.getMessage());
2504         }
2505     }
2506
2507     private void downloadGroupAvatar(SignalServiceAttachment avatar, GroupId groupId) {
2508         try {
2509             avatarStore.storeGroupAvatar(groupId, outputStream -> retrieveAttachment(avatar, outputStream));
2510         } catch (IOException e) {
2511             logger.warn("Failed to download avatar for group {}, ignoring: {}", groupId.toBase64(), e.getMessage());
2512         }
2513     }
2514
2515     private void downloadGroupAvatar(GroupId groupId, GroupSecretParams groupSecretParams, String cdnKey) {
2516         try {
2517             avatarStore.storeGroupAvatar(groupId,
2518                     outputStream -> retrieveGroupV2Avatar(groupSecretParams, cdnKey, outputStream));
2519         } catch (IOException e) {
2520             logger.warn("Failed to download avatar for group {}, ignoring: {}", groupId.toBase64(), e.getMessage());
2521         }
2522     }
2523
2524     private void downloadProfileAvatar(
2525             SignalServiceAddress address, String avatarPath, ProfileKey profileKey
2526     ) {
2527         try {
2528             avatarStore.storeProfileAvatar(address,
2529                     outputStream -> retrieveProfileAvatar(avatarPath, profileKey, outputStream));
2530         } catch (Throwable e) {
2531             logger.warn("Failed to download profile avatar, ignoring: {}", e.getMessage());
2532         }
2533     }
2534
2535     public File getAttachmentFile(SignalServiceAttachmentRemoteId attachmentId) {
2536         return attachmentStore.getAttachmentFile(attachmentId);
2537     }
2538
2539     private void downloadAttachment(final SignalServiceAttachment attachment) {
2540         if (!attachment.isPointer()) {
2541             logger.warn("Invalid state, can't store an attachment stream.");
2542         }
2543
2544         var pointer = attachment.asPointer();
2545         if (pointer.getPreview().isPresent()) {
2546             final var preview = pointer.getPreview().get();
2547             try {
2548                 attachmentStore.storeAttachmentPreview(pointer.getRemoteId(),
2549                         outputStream -> outputStream.write(preview, 0, preview.length));
2550             } catch (IOException e) {
2551                 logger.warn("Failed to download attachment preview, ignoring: {}", e.getMessage());
2552             }
2553         }
2554
2555         try {
2556             attachmentStore.storeAttachment(pointer.getRemoteId(),
2557                     outputStream -> retrieveAttachmentPointer(pointer, outputStream));
2558         } catch (IOException e) {
2559             logger.warn("Failed to download attachment ({}), ignoring: {}", pointer.getRemoteId(), e.getMessage());
2560         }
2561     }
2562
2563     private void retrieveGroupV2Avatar(
2564             GroupSecretParams groupSecretParams, String cdnKey, OutputStream outputStream
2565     ) throws IOException {
2566         var groupOperations = groupsV2Operations.forGroup(groupSecretParams);
2567
2568         var tmpFile = IOUtils.createTempFile();
2569         try (InputStream input = messageReceiver.retrieveGroupsV2ProfileAvatar(cdnKey,
2570                 tmpFile,
2571                 ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
2572             var encryptedData = IOUtils.readFully(input);
2573
2574             var decryptedData = groupOperations.decryptAvatar(encryptedData);
2575             outputStream.write(decryptedData);
2576         } finally {
2577             try {
2578                 Files.delete(tmpFile.toPath());
2579             } catch (IOException e) {
2580                 logger.warn("Failed to delete received group avatar temp file “{}”, ignoring: {}",
2581                         tmpFile,
2582                         e.getMessage());
2583             }
2584         }
2585     }
2586
2587     private void retrieveProfileAvatar(
2588             String avatarPath, ProfileKey profileKey, OutputStream outputStream
2589     ) throws IOException {
2590         var tmpFile = IOUtils.createTempFile();
2591         try (var input = messageReceiver.retrieveProfileAvatar(avatarPath,
2592                 tmpFile,
2593                 profileKey,
2594                 ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
2595             // Use larger buffer size to prevent AssertionError: Need: 12272 but only have: 8192 ...
2596             IOUtils.copyStream(input, outputStream, (int) ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE);
2597         } finally {
2598             try {
2599                 Files.delete(tmpFile.toPath());
2600             } catch (IOException e) {
2601                 logger.warn("Failed to delete received profile avatar temp file “{}”, ignoring: {}",
2602                         tmpFile,
2603                         e.getMessage());
2604             }
2605         }
2606     }
2607
2608     private void retrieveAttachment(
2609             final SignalServiceAttachment attachment, final OutputStream outputStream
2610     ) throws IOException {
2611         if (attachment.isPointer()) {
2612             var pointer = attachment.asPointer();
2613             retrieveAttachmentPointer(pointer, outputStream);
2614         } else {
2615             var stream = attachment.asStream();
2616             IOUtils.copyStream(stream.getInputStream(), outputStream);
2617         }
2618     }
2619
2620     private void retrieveAttachmentPointer(
2621             SignalServiceAttachmentPointer pointer, OutputStream outputStream
2622     ) throws IOException {
2623         var tmpFile = IOUtils.createTempFile();
2624         try (var input = retrieveAttachmentAsStream(pointer, tmpFile)) {
2625             IOUtils.copyStream(input, outputStream);
2626         } catch (MissingConfigurationException | InvalidMessageException e) {
2627             throw new IOException(e);
2628         } finally {
2629             try {
2630                 Files.delete(tmpFile.toPath());
2631             } catch (IOException e) {
2632                 logger.warn("Failed to delete received attachment temp file “{}”, ignoring: {}",
2633                         tmpFile,
2634                         e.getMessage());
2635             }
2636         }
2637     }
2638
2639     private InputStream retrieveAttachmentAsStream(
2640             SignalServiceAttachmentPointer pointer, File tmpFile
2641     ) throws IOException, InvalidMessageException, MissingConfigurationException {
2642         return messageReceiver.retrieveAttachment(pointer, tmpFile, ServiceConfig.MAX_ATTACHMENT_SIZE);
2643     }
2644
2645     void sendGroups() throws IOException, UntrustedIdentityException {
2646         var groupsFile = IOUtils.createTempFile();
2647
2648         try {
2649             try (OutputStream fos = new FileOutputStream(groupsFile)) {
2650                 var out = new DeviceGroupsOutputStream(fos);
2651                 for (var record : getGroups()) {
2652                     if (record instanceof GroupInfoV1) {
2653                         var groupInfo = (GroupInfoV1) record;
2654                         out.write(new DeviceGroup(groupInfo.getGroupId().serialize(),
2655                                 Optional.fromNullable(groupInfo.name),
2656                                 groupInfo.getMembers()
2657                                         .stream()
2658                                         .map(this::resolveSignalServiceAddress)
2659                                         .collect(Collectors.toList()),
2660                                 createGroupAvatarAttachment(groupInfo.getGroupId()),
2661                                 groupInfo.isMember(account.getSelfRecipientId()),
2662                                 Optional.of(groupInfo.messageExpirationTime),
2663                                 Optional.fromNullable(groupInfo.color),
2664                                 groupInfo.blocked,
2665                                 Optional.absent(),
2666                                 groupInfo.archived));
2667                     }
2668                 }
2669             }
2670
2671             if (groupsFile.exists() && groupsFile.length() > 0) {
2672                 try (var groupsFileStream = new FileInputStream(groupsFile)) {
2673                     var attachmentStream = SignalServiceAttachment.newStreamBuilder()
2674                             .withStream(groupsFileStream)
2675                             .withContentType("application/octet-stream")
2676                             .withLength(groupsFile.length())
2677                             .build();
2678
2679                     sendSyncMessage(SignalServiceSyncMessage.forGroups(attachmentStream));
2680                 }
2681             }
2682         } finally {
2683             try {
2684                 Files.delete(groupsFile.toPath());
2685             } catch (IOException e) {
2686                 logger.warn("Failed to delete groups temp file “{}”, ignoring: {}", groupsFile, e.getMessage());
2687             }
2688         }
2689     }
2690
2691     public void sendContacts() throws IOException, UntrustedIdentityException {
2692         var contactsFile = IOUtils.createTempFile();
2693
2694         try {
2695             try (OutputStream fos = new FileOutputStream(contactsFile)) {
2696                 var out = new DeviceContactsOutputStream(fos);
2697                 for (var contactPair : account.getContactStore().getContacts()) {
2698                     final var recipientId = contactPair.first();
2699                     final var contact = contactPair.second();
2700                     final var address = resolveSignalServiceAddress(recipientId);
2701
2702                     var currentIdentity = account.getIdentityKeyStore().getIdentity(recipientId);
2703                     VerifiedMessage verifiedMessage = null;
2704                     if (currentIdentity != null) {
2705                         verifiedMessage = new VerifiedMessage(address,
2706                                 currentIdentity.getIdentityKey(),
2707                                 currentIdentity.getTrustLevel().toVerifiedState(),
2708                                 currentIdentity.getDateAdded().getTime());
2709                     }
2710
2711                     var profileKey = account.getProfileStore().getProfileKey(recipientId);
2712                     out.write(new DeviceContact(address,
2713                             Optional.fromNullable(contact.getName()),
2714                             createContactAvatarAttachment(address),
2715                             Optional.fromNullable(contact.getColor()),
2716                             Optional.fromNullable(verifiedMessage),
2717                             Optional.fromNullable(profileKey),
2718                             contact.isBlocked(),
2719                             Optional.of(contact.getMessageExpirationTime()),
2720                             Optional.absent(),
2721                             contact.isArchived()));
2722                 }
2723
2724                 if (account.getProfileKey() != null) {
2725                     // Send our own profile key as well
2726                     out.write(new DeviceContact(account.getSelfAddress(),
2727                             Optional.absent(),
2728                             Optional.absent(),
2729                             Optional.absent(),
2730                             Optional.absent(),
2731                             Optional.of(account.getProfileKey()),
2732                             false,
2733                             Optional.absent(),
2734                             Optional.absent(),
2735                             false));
2736                 }
2737             }
2738
2739             if (contactsFile.exists() && contactsFile.length() > 0) {
2740                 try (var contactsFileStream = new FileInputStream(contactsFile)) {
2741                     var attachmentStream = SignalServiceAttachment.newStreamBuilder()
2742                             .withStream(contactsFileStream)
2743                             .withContentType("application/octet-stream")
2744                             .withLength(contactsFile.length())
2745                             .build();
2746
2747                     sendSyncMessage(SignalServiceSyncMessage.forContacts(new ContactsMessage(attachmentStream, true)));
2748                 }
2749             }
2750         } finally {
2751             try {
2752                 Files.delete(contactsFile.toPath());
2753             } catch (IOException e) {
2754                 logger.warn("Failed to delete contacts temp file “{}”, ignoring: {}", contactsFile, e.getMessage());
2755             }
2756         }
2757     }
2758
2759     void sendBlockedList() throws IOException, UntrustedIdentityException {
2760         var addresses = new ArrayList<SignalServiceAddress>();
2761         for (var record : account.getContactStore().getContacts()) {
2762             if (record.second().isBlocked()) {
2763                 addresses.add(resolveSignalServiceAddress(record.first()));
2764             }
2765         }
2766         var groupIds = new ArrayList<byte[]>();
2767         for (var record : getGroups()) {
2768             if (record.isBlocked()) {
2769                 groupIds.add(record.getGroupId().serialize());
2770             }
2771         }
2772         sendSyncMessage(SignalServiceSyncMessage.forBlocked(new BlockedListMessage(addresses, groupIds)));
2773     }
2774
2775     private void sendVerifiedMessage(
2776             SignalServiceAddress destination, IdentityKey identityKey, TrustLevel trustLevel
2777     ) throws IOException, UntrustedIdentityException {
2778         var verifiedMessage = new VerifiedMessage(destination,
2779                 identityKey,
2780                 trustLevel.toVerifiedState(),
2781                 System.currentTimeMillis());
2782         sendSyncMessage(SignalServiceSyncMessage.forVerified(verifiedMessage));
2783     }
2784
2785     public List<Pair<RecipientId, Contact>> getContacts() {
2786         return account.getContactStore().getContacts();
2787     }
2788
2789     public String getContactOrProfileName(String number) throws InvalidNumberException {
2790         final var recipientId = canonicalizeAndResolveRecipient(number);
2791         final var recipient = account.getRecipientStore().getRecipient(recipientId);
2792         if (recipient == null) {
2793             return null;
2794         }
2795
2796         if (recipient.getContact() != null && !Util.isEmpty(recipient.getContact().getName())) {
2797             return recipient.getContact().getName();
2798         }
2799
2800         if (recipient.getProfile() != null && recipient.getProfile() != null) {
2801             return recipient.getProfile().getDisplayName();
2802         }
2803
2804         return null;
2805     }
2806
2807     public GroupInfo getGroup(GroupId groupId) {
2808         return getGroup(groupId, false);
2809     }
2810
2811     public GroupInfo getGroup(GroupId groupId, boolean forceUpdate) {
2812         final var group = account.getGroupStore().getGroup(groupId);
2813         if (group instanceof GroupInfoV2 && (forceUpdate || ((GroupInfoV2) group).getGroup() == null)) {
2814             final var groupSecretParams = GroupSecretParams.deriveFromMasterKey(((GroupInfoV2) group).getMasterKey());
2815             ((GroupInfoV2) group).setGroup(groupV2Helper.getDecryptedGroup(groupSecretParams), this::resolveRecipient);
2816             account.getGroupStore().updateGroup(group);
2817         }
2818         return group;
2819     }
2820
2821     public List<IdentityInfo> getIdentities() {
2822         return account.getIdentityKeyStore().getIdentities();
2823     }
2824
2825     public List<IdentityInfo> getIdentities(String number) throws InvalidNumberException {
2826         final var identity = account.getIdentityKeyStore().getIdentity(canonicalizeAndResolveRecipient(number));
2827         return identity == null ? List.of() : List.of(identity);
2828     }
2829
2830     /**
2831      * Trust this the identity with this fingerprint
2832      *
2833      * @param name        username of the identity
2834      * @param fingerprint Fingerprint
2835      */
2836     public boolean trustIdentityVerified(String name, byte[] fingerprint) throws InvalidNumberException {
2837         var recipientId = canonicalizeAndResolveRecipient(name);
2838         return trustIdentity(recipientId,
2839                 identityKey -> Arrays.equals(identityKey.serialize(), fingerprint),
2840                 TrustLevel.TRUSTED_VERIFIED);
2841     }
2842
2843     /**
2844      * Trust this the identity with this safety number
2845      *
2846      * @param name         username of the identity
2847      * @param safetyNumber Safety number
2848      */
2849     public boolean trustIdentityVerifiedSafetyNumber(String name, String safetyNumber) throws InvalidNumberException {
2850         var recipientId = canonicalizeAndResolveRecipient(name);
2851         var address = account.getRecipientStore().resolveServiceAddress(recipientId);
2852         return trustIdentity(recipientId,
2853                 identityKey -> safetyNumber.equals(computeSafetyNumber(address, identityKey)),
2854                 TrustLevel.TRUSTED_VERIFIED);
2855     }
2856
2857     /**
2858      * Trust all keys of this identity without verification
2859      *
2860      * @param name username of the identity
2861      */
2862     public boolean trustIdentityAllKeys(String name) throws InvalidNumberException {
2863         var recipientId = canonicalizeAndResolveRecipient(name);
2864         return trustIdentity(recipientId, identityKey -> true, TrustLevel.TRUSTED_UNVERIFIED);
2865     }
2866
2867     private boolean trustIdentity(
2868             RecipientId recipientId, Function<IdentityKey, Boolean> verifier, TrustLevel trustLevel
2869     ) {
2870         var identity = account.getIdentityKeyStore().getIdentity(recipientId);
2871         if (identity == null) {
2872             return false;
2873         }
2874
2875         if (!verifier.apply(identity.getIdentityKey())) {
2876             return false;
2877         }
2878
2879         account.getIdentityKeyStore().setIdentityTrustLevel(recipientId, identity.getIdentityKey(), trustLevel);
2880         try {
2881             var address = account.getRecipientStore().resolveServiceAddress(recipientId);
2882             sendVerifiedMessage(address, identity.getIdentityKey(), trustLevel);
2883         } catch (IOException | UntrustedIdentityException e) {
2884             logger.warn("Failed to send verification sync message: {}", e.getMessage());
2885         }
2886
2887         return true;
2888     }
2889
2890     public String computeSafetyNumber(
2891             SignalServiceAddress theirAddress, IdentityKey theirIdentityKey
2892     ) {
2893         return Utils.computeSafetyNumber(ServiceConfig.capabilities.isUuid(),
2894                 account.getSelfAddress(),
2895                 getIdentityKeyPair().getPublicKey(),
2896                 theirAddress,
2897                 theirIdentityKey);
2898     }
2899
2900     @Deprecated
2901     public SignalServiceAddress resolveSignalServiceAddress(String identifier) {
2902         var address = Utils.getSignalServiceAddressFromIdentifier(identifier);
2903
2904         return resolveSignalServiceAddress(address);
2905     }
2906
2907     @Deprecated
2908     public SignalServiceAddress resolveSignalServiceAddress(SignalServiceAddress address) {
2909         if (address.matches(account.getSelfAddress())) {
2910             return account.getSelfAddress();
2911         }
2912
2913         return account.getRecipientStore().resolveServiceAddress(address);
2914     }
2915
2916     public SignalServiceAddress resolveSignalServiceAddress(RecipientId recipientId) {
2917         return account.getRecipientStore().resolveServiceAddress(recipientId);
2918     }
2919
2920     public RecipientId canonicalizeAndResolveRecipient(String identifier) throws InvalidNumberException {
2921         var canonicalizedNumber = UuidUtil.isUuid(identifier)
2922                 ? identifier
2923                 : PhoneNumberFormatter.formatNumber(identifier, account.getUsername());
2924
2925         return resolveRecipient(canonicalizedNumber);
2926     }
2927
2928     private RecipientId resolveRecipient(final String identifier) {
2929         var address = Utils.getSignalServiceAddressFromIdentifier(identifier);
2930
2931         return resolveRecipient(address);
2932     }
2933
2934     public RecipientId resolveRecipient(SignalServiceAddress address) {
2935         return account.getRecipientStore().resolveRecipient(address);
2936     }
2937
2938     private RecipientId resolveRecipientTrusted(SignalServiceAddress address) {
2939         return account.getRecipientStore().resolveRecipientTrusted(address);
2940     }
2941
2942     @Override
2943     public void close() throws IOException {
2944         close(true);
2945     }
2946
2947     void close(boolean closeAccount) throws IOException {
2948         executor.shutdown();
2949
2950         if (messagePipe != null) {
2951             messagePipe.shutdown();
2952             messagePipe = null;
2953         }
2954
2955         if (unidentifiedMessagePipe != null) {
2956             unidentifiedMessagePipe.shutdown();
2957             unidentifiedMessagePipe = null;
2958         }
2959
2960         if (closeAccount && account != null) {
2961             account.close();
2962         }
2963         account = null;
2964     }
2965
2966     public interface ReceiveMessageHandler {
2967
2968         void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent decryptedContent, Throwable e);
2969     }
2970 }