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

   1 /*
   2   Copyright (C) 2015-2021 AsamK and contributors
   3
   4   This program is free software: you can redistribute it and/or modify
   5   it under the terms of the GNU General Public License as published by
   6   the Free Software Foundation, either version 3 of the License, or
   7   (at your option) any later version.
   8
   9   This program is distributed in the hope that it will be useful,
  10   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12   GNU General Public License for more details.
  13
  14   You should have received a copy of the GNU General Public License
  15   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17 package org.asamk.signal.manager;
  18
  19 import org.asamk.signal.manager.api.Device;
  20 import org.asamk.signal.manager.config.ServiceConfig;
  21 import org.asamk.signal.manager.config.ServiceEnvironment;
  22 import org.asamk.signal.manager.config.ServiceEnvironmentConfig;
  23 import org.asamk.signal.manager.groups.GroupId;
  24 import org.asamk.signal.manager.groups.GroupIdV1;
  25 import org.asamk.signal.manager.groups.GroupInviteLinkUrl;
  26 import org.asamk.signal.manager.groups.GroupLinkState;
  27 import org.asamk.signal.manager.groups.GroupNotFoundException;
  28 import org.asamk.signal.manager.groups.GroupPermission;
  29 import org.asamk.signal.manager.groups.GroupUtils;
  30 import org.asamk.signal.manager.groups.LastGroupAdminException;
  31 import org.asamk.signal.manager.groups.NotAGroupMemberException;
  32 import org.asamk.signal.manager.helper.GroupV2Helper;
  33 import org.asamk.signal.manager.helper.PinHelper;
  34 import org.asamk.signal.manager.helper.ProfileHelper;
  35 import org.asamk.signal.manager.helper.UnidentifiedAccessHelper;
  36 import org.asamk.signal.manager.storage.SignalAccount;
  37 import org.asamk.signal.manager.storage.groups.GroupInfo;
  38 import org.asamk.signal.manager.storage.groups.GroupInfoV1;
  39 import org.asamk.signal.manager.storage.groups.GroupInfoV2;
  40 import org.asamk.signal.manager.storage.identities.IdentityInfo;
  41 import org.asamk.signal.manager.storage.messageCache.CachedMessage;
  42 import org.asamk.signal.manager.storage.recipients.Contact;
  43 import org.asamk.signal.manager.storage.recipients.Profile;
  44 import org.asamk.signal.manager.storage.recipients.RecipientId;
  45 import org.asamk.signal.manager.storage.stickers.Sticker;
  46 import org.asamk.signal.manager.storage.stickers.StickerPackId;
  47 import org.asamk.signal.manager.util.AttachmentUtils;
  48 import org.asamk.signal.manager.util.IOUtils;
  49 import org.asamk.signal.manager.util.KeyUtils;
  50 import org.asamk.signal.manager.util.ProfileUtils;
  51 import org.asamk.signal.manager.util.StickerUtils;
  52 import org.asamk.signal.manager.util.Utils;
  53 import org.signal.libsignal.metadata.InvalidMetadataMessageException;
  54 import org.signal.libsignal.metadata.InvalidMetadataVersionException;
  55 import org.signal.libsignal.metadata.ProtocolDuplicateMessageException;
  56 import org.signal.libsignal.metadata.ProtocolInvalidKeyException;
  57 import org.signal.libsignal.metadata.ProtocolInvalidKeyIdException;
  58 import org.signal.libsignal.metadata.ProtocolInvalidMessageException;
  59 import org.signal.libsignal.metadata.ProtocolInvalidVersionException;
  60 import org.signal.libsignal.metadata.ProtocolLegacyMessageException;
  61 import org.signal.libsignal.metadata.ProtocolNoSessionException;
  62 import org.signal.libsignal.metadata.ProtocolUntrustedIdentityException;
  63 import org.signal.libsignal.metadata.SelfSendException;
  64 import org.signal.libsignal.metadata.certificate.CertificateValidator;
  65 import org.signal.storageservice.protos.groups.GroupChange;
  66 import org.signal.storageservice.protos.groups.local.DecryptedGroup;
  67 import org.signal.zkgroup.InvalidInputException;
  68 import org.signal.zkgroup.VerificationFailedException;
  69 import org.signal.zkgroup.groups.GroupMasterKey;
  70 import org.signal.zkgroup.groups.GroupSecretParams;
  71 import org.signal.zkgroup.profiles.ClientZkProfileOperations;
  72 import org.signal.zkgroup.profiles.ProfileKey;
  73 import org.signal.zkgroup.profiles.ProfileKeyCredential;
  74 import org.slf4j.Logger;
  75 import org.slf4j.LoggerFactory;
  76 import org.whispersystems.libsignal.IdentityKey;
  77 import org.whispersystems.libsignal.IdentityKeyPair;
  78 import org.whispersystems.libsignal.InvalidKeyException;
  79 import org.whispersystems.libsignal.InvalidMessageException;
  80 import org.whispersystems.libsignal.ecc.ECPublicKey;
  81 import org.whispersystems.libsignal.state.PreKeyRecord;
  82 import org.whispersystems.libsignal.state.SignedPreKeyRecord;
  83 import org.whispersystems.libsignal.util.Pair;
  84 import org.whispersystems.libsignal.util.guava.Optional;
  85 import org.whispersystems.signalservice.api.SignalServiceAccountManager;
  86 import org.whispersystems.signalservice.api.SignalServiceMessagePipe;
  87 import org.whispersystems.signalservice.api.SignalServiceMessageReceiver;
  88 import org.whispersystems.signalservice.api.SignalServiceMessageSender;
  89 import org.whispersystems.signalservice.api.SignalSessionLock;
  90 import org.whispersystems.signalservice.api.crypto.SignalServiceCipher;
  91 import org.whispersystems.signalservice.api.crypto.UntrustedIdentityException;
  92 import org.whispersystems.signalservice.api.groupsv2.ClientZkOperations;
  93 import org.whispersystems.signalservice.api.groupsv2.GroupLinkNotActiveException;
  94 import org.whispersystems.signalservice.api.groupsv2.GroupsV2Api;
  95 import org.whispersystems.signalservice.api.groupsv2.GroupsV2AuthorizationString;
  96 import org.whispersystems.signalservice.api.groupsv2.GroupsV2Operations;
  97 import org.whispersystems.signalservice.api.messages.SendMessageResult;
  98 import org.whispersystems.signalservice.api.messages.SignalServiceAttachment;
  99 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentPointer;
 100 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentRemoteId;
 101 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentStream;
 102 import org.whispersystems.signalservice.api.messages.SignalServiceContent;
 103 import org.whispersystems.signalservice.api.messages.SignalServiceDataMessage;
 104 import org.whispersystems.signalservice.api.messages.SignalServiceEnvelope;
 105 import org.whispersystems.signalservice.api.messages.SignalServiceGroup;
 106 import org.whispersystems.signalservice.api.messages.SignalServiceGroupV2;
 107 import org.whispersystems.signalservice.api.messages.SignalServiceReceiptMessage;
 108 import org.whispersystems.signalservice.api.messages.multidevice.BlockedListMessage;
 109 import org.whispersystems.signalservice.api.messages.multidevice.ContactsMessage;
 110 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContact;
 111 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsInputStream;
 112 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsOutputStream;
 113 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroup;
 114 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsInputStream;
 115 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsOutputStream;
 116 import org.whispersystems.signalservice.api.messages.multidevice.RequestMessage;
 117 import org.whispersystems.signalservice.api.messages.multidevice.SentTranscriptMessage;
 118 import org.whispersystems.signalservice.api.messages.multidevice.SignalServiceSyncMessage;
 119 import org.whispersystems.signalservice.api.messages.multidevice.StickerPackOperationMessage;
 120 import org.whispersystems.signalservice.api.messages.multidevice.VerifiedMessage;
 121 import org.whispersystems.signalservice.api.profiles.ProfileAndCredential;
 122 import org.whispersystems.signalservice.api.profiles.SignalServiceProfile;
 123 import org.whispersystems.signalservice.api.push.SignalServiceAddress;
 124 import org.whispersystems.signalservice.api.push.exceptions.MissingConfigurationException;
 125 import org.whispersystems.signalservice.api.push.exceptions.UnregisteredUserException;
 126 import org.whispersystems.signalservice.api.util.DeviceNameUtil;
 127 import org.whispersystems.signalservice.api.util.InvalidNumberException;
 128 import org.whispersystems.signalservice.api.util.PhoneNumberFormatter;
 129 import org.whispersystems.signalservice.api.util.SleepTimer;
 130 import org.whispersystems.signalservice.api.util.UptimeSleepTimer;
 131 import org.whispersystems.signalservice.api.util.UuidUtil;
 132 import org.whispersystems.signalservice.internal.contacts.crypto.Quote;
 133 import org.whispersystems.signalservice.internal.contacts.crypto.UnauthenticatedQuoteException;
 134 import org.whispersystems.signalservice.internal.contacts.crypto.UnauthenticatedResponseException;
 135 import org.whispersystems.signalservice.internal.push.SignalServiceProtos;
 136 import org.whispersystems.signalservice.internal.push.UnsupportedDataMessageException;
 137 import org.whispersystems.signalservice.internal.util.DynamicCredentialsProvider;
 138 import org.whispersystems.signalservice.internal.util.Hex;
 139 import org.whispersystems.signalservice.internal.util.Util;
 140
 141 import java.io.Closeable;
 142 import java.io.File;
 143 import java.io.FileInputStream;
 144 import java.io.FileOutputStream;
 145 import java.io.IOException;
 146 import java.io.InputStream;
 147 import java.io.OutputStream;
 148 import java.net.URI;
 149 import java.net.URISyntaxException;
 150 import java.net.URLEncoder;
 151 import java.nio.charset.StandardCharsets;
 152 import java.nio.file.Files;
 153 import java.security.SignatureException;
 154 import java.util.ArrayList;
 155 import java.util.Arrays;
 156 import java.util.Base64;
 157 import java.util.Collection;
 158 import java.util.Date;
 159 import java.util.HashSet;
 160 import java.util.List;
 161 import java.util.Map;
 162 import java.util.Set;
 163 import java.util.UUID;
 164 import java.util.concurrent.ExecutorService;
 165 import java.util.concurrent.Executors;
 166 import java.util.concurrent.TimeUnit;
 167 import java.util.concurrent.TimeoutException;
 168 import java.util.concurrent.locks.ReentrantLock;
 169 import java.util.function.Function;
 170 import java.util.stream.Collectors;
 171
 172 import static org.asamk.signal.manager.config.ServiceConfig.capabilities;
 173
 174 public class Manager implements Closeable {
 175
 176     private final static Logger logger = LoggerFactory.getLogger(Manager.class);
 177
 178     private final CertificateValidator certificateValidator;
 179
 180     private final ServiceEnvironmentConfig serviceEnvironmentConfig;
 181     private final String userAgent;
 182
 183     private SignalAccount account;
 184     private final SignalServiceAccountManager accountManager;
 185     private final GroupsV2Api groupsV2Api;
 186     private final GroupsV2Operations groupsV2Operations;
 187     private final SignalServiceMessageReceiver messageReceiver;
 188     private final ClientZkProfileOperations clientZkProfileOperations;
 189
 190     private final ExecutorService executor = Executors.newCachedThreadPool();
 191
 192     private SignalServiceMessagePipe messagePipe = null;
 193     private SignalServiceMessagePipe unidentifiedMessagePipe = null;
 194
 195     private final UnidentifiedAccessHelper unidentifiedAccessHelper;
 196     private final ProfileHelper profileHelper;
 197     private final GroupV2Helper groupV2Helper;
 198     private final PinHelper pinHelper;
 199     private final AvatarStore avatarStore;
 200     private final AttachmentStore attachmentStore;
 201     private final SignalSessionLock sessionLock = new SignalSessionLock() {
 202         private final ReentrantLock LEGACY_LOCK = new ReentrantLock();
 203
 204         @Override
 205         public Lock acquire() {
 206             LEGACY_LOCK.lock();
 207             return LEGACY_LOCK::unlock;
 208         }
 209     };
 210
 211     Manager(
 212             SignalAccount account,
 213             PathConfig pathConfig,
 214             ServiceEnvironmentConfig serviceEnvironmentConfig,
 215             String userAgent
 216     ) {
 217         this.account = account;
 218         this.serviceEnvironmentConfig = serviceEnvironmentConfig;
 219         this.certificateValidator = new CertificateValidator(serviceEnvironmentConfig.getUnidentifiedSenderTrustRoot());
 220         this.userAgent = userAgent;
 221         this.groupsV2Operations = capabilities.isGv2() ? new GroupsV2Operations(ClientZkOperations.create(
 222                 serviceEnvironmentConfig.getSignalServiceConfiguration())) : null;
 223         final SleepTimer timer = new UptimeSleepTimer();
 224         this.accountManager = new SignalServiceAccountManager(serviceEnvironmentConfig.getSignalServiceConfiguration(),
 225                 new DynamicCredentialsProvider(account.getUuid(),
 226                         account.getUsername(),
 227                         account.getPassword(),
 228                         account.getDeviceId()),
 229                 userAgent,
 230                 groupsV2Operations,
 231                 ServiceConfig.AUTOMATIC_NETWORK_RETRY,
 232                 timer);
 233         this.groupsV2Api = accountManager.getGroupsV2Api();
 234         final var keyBackupService = accountManager.getKeyBackupService(ServiceConfig.getIasKeyStore(),
 235                 serviceEnvironmentConfig.getKeyBackupConfig().getEnclaveName(),
 236                 serviceEnvironmentConfig.getKeyBackupConfig().getServiceId(),
 237                 serviceEnvironmentConfig.getKeyBackupConfig().getMrenclave(),
 238                 10);
 239
 240         this.pinHelper = new PinHelper(keyBackupService);
 241         this.clientZkProfileOperations = capabilities.isGv2()
 242                 ? ClientZkOperations.create(serviceEnvironmentConfig.getSignalServiceConfiguration())
 243                 .getProfileOperations()
 244                 : null;
 245         this.messageReceiver = new SignalServiceMessageReceiver(serviceEnvironmentConfig.getSignalServiceConfiguration(),
 246                 account.getUuid(),
 247                 account.getUsername(),
 248                 account.getPassword(),
 249                 account.getDeviceId(),
 250                 userAgent,
 251                 null,
 252                 timer,
 253                 clientZkProfileOperations,
 254                 ServiceConfig.AUTOMATIC_NETWORK_RETRY);
 255
 256         this.unidentifiedAccessHelper = new UnidentifiedAccessHelper(account::getProfileKey,
 257                 account.getProfileStore()::getProfileKey,
 258                 this::getRecipientProfile,
 259                 this::getSenderCertificate);
 260         this.profileHelper = new ProfileHelper(account.getProfileStore()::getProfileKey,
 261                 unidentifiedAccessHelper::getAccessFor,
 262                 unidentified -> unidentified ? getOrCreateUnidentifiedMessagePipe() : getOrCreateMessagePipe(),
 263                 () -> messageReceiver,
 264                 this::resolveSignalServiceAddress);
 265         this.groupV2Helper = new GroupV2Helper(this::getRecipientProfileKeyCredential,
 266                 this::getRecipientProfile,
 267                 account::getSelfRecipientId,
 268                 groupsV2Operations,
 269                 groupsV2Api,
 270                 this::getGroupAuthForToday,
 271                 this::resolveSignalServiceAddress);
 272         this.avatarStore = new AvatarStore(pathConfig.getAvatarsPath());
 273         this.attachmentStore = new AttachmentStore(pathConfig.getAttachmentsPath());
 274     }
 275
 276     public String getUsername() {
 277         return account.getUsername();
 278     }
 279
 280     public SignalServiceAddress getSelfAddress() {
 281         return account.getSelfAddress();
 282     }
 283
 284     public RecipientId getSelfRecipientId() {
 285         return account.getSelfRecipientId();
 286     }
 287
 288     private IdentityKeyPair getIdentityKeyPair() {
 289         return account.getIdentityKeyPair();
 290     }
 291
 292     public int getDeviceId() {
 293         return account.getDeviceId();
 294     }
 295
 296     public static Manager init(
 297             String username, File settingsPath, ServiceEnvironment serviceEnvironment, String userAgent
 298     ) throws IOException, NotRegisteredException {
 299         var pathConfig = PathConfig.createDefault(settingsPath);
 300
 301         if (!SignalAccount.userExists(pathConfig.getDataPath(), username)) {
 302             throw new NotRegisteredException();
 303         }
 304
 305         var account = SignalAccount.load(pathConfig.getDataPath(), username, true);
 306
 307         if (!account.isRegistered()) {
 308             throw new NotRegisteredException();
 309         }
 310
 311         final var serviceEnvironmentConfig = ServiceConfig.getServiceEnvironmentConfig(serviceEnvironment, userAgent);
 312
 313         return new Manager(account, pathConfig, serviceEnvironmentConfig, userAgent);
 314     }
 315
 316     public static List<String> getAllLocalUsernames(File settingsPath) {
 317         var pathConfig = PathConfig.createDefault(settingsPath);
 318         final var dataPath = pathConfig.getDataPath();
 319         final var files = dataPath.listFiles();
 320
 321         if (files == null) {
 322             return List.of();
 323         }
 324
 325         return Arrays.stream(files)
 326                 .filter(File::isFile)
 327                 .map(File::getName)
 328                 .filter(file -> PhoneNumberFormatter.isValidNumber(file, null))
 329                 .collect(Collectors.toList());
 330     }
 331
 332     public void checkAccountState() throws IOException {
 333         if (accountManager.getPreKeysCount() < ServiceConfig.PREKEY_MINIMUM_COUNT) {
 334             refreshPreKeys();
 335         }
 336         if (account.getUuid() == null) {
 337             account.setUuid(accountManager.getOwnUuid());
 338         }
 339         updateAccountAttributes();
 340     }
 341
 342     /**
 343      * This is used for checking a set of phone numbers for registration on Signal
 344      *
 345      * @param numbers The set of phone number in question
 346      * @return A map of numbers to booleans. True if registered, false otherwise. Should never be null
 347      * @throws IOException if its unable to get the contacts to check if they're registered
 348      */
 349     public Map<String, Boolean> areUsersRegistered(Set<String> numbers) throws IOException {
 350         // Note "contactDetails" has no optionals. It only gives us info on users who are registered
 351         var contactDetails = getRegisteredUsers(numbers);
 352
 353         var registeredUsers = contactDetails.keySet();
 354
 355         return numbers.stream().collect(Collectors.toMap(x -> x, registeredUsers::contains));
 356     }
 357
 358     public void updateAccountAttributes() throws IOException {
 359         accountManager.setAccountAttributes(account.getEncryptedDeviceName(),
 360                 null,
 361                 account.getLocalRegistrationId(),
 362                 true,
 363                 // set legacy pin only if no KBS master key is set
 364                 account.getPinMasterKey() == null ? account.getRegistrationLockPin() : null,
 365                 account.getPinMasterKey() == null ? null : account.getPinMasterKey().deriveRegistrationLock(),
 366                 account.getSelfUnidentifiedAccessKey(),
 367                 account.isUnrestrictedUnidentifiedAccess(),
 368                 capabilities,
 369                 account.isDiscoverableByPhoneNumber());
 370     }
 371
 372     /**
 373      * @param givenName  if null, the previous givenName will be kept
 374      * @param familyName if null, the previous familyName will be kept
 375      * @param about      if null, the previous about text will be kept
 376      * @param aboutEmoji if null, the previous about emoji will be kept
 377      * @param avatar     if avatar is null the image from the local avatar store is used (if present),
 378      */
 379     public void setProfile(
 380             String givenName, final String familyName, String about, String aboutEmoji, Optional<File> avatar
 381     ) throws IOException {
 382         var profile = getRecipientProfile(account.getSelfRecipientId());
 383         var builder = profile == null ? Profile.newBuilder() : Profile.newBuilder(profile);
 384         if (givenName != null) {
 385             builder.withGivenName(givenName);
 386         }
 387         if (familyName != null) {
 388             builder.withFamilyName(familyName);
 389         }
 390         if (about != null) {
 391             builder.withAbout(about);
 392         }
 393         if (aboutEmoji != null) {
 394             builder.withAboutEmoji(aboutEmoji);
 395         }
 396         var newProfile = builder.build();
 397
 398         try (final var streamDetails = avatar == null
 399                 ? avatarStore.retrieveProfileAvatar(getSelfAddress())
 400                 : avatar.isPresent() ? Utils.createStreamDetailsFromFile(avatar.get()) : null) {
 401             accountManager.setVersionedProfile(account.getUuid(),
 402                     account.getProfileKey(),
 403                     newProfile.getInternalServiceName(),
 404                     newProfile.getAbout() == null ? "" : newProfile.getAbout(),
 405                     newProfile.getAboutEmoji() == null ? "" : newProfile.getAboutEmoji(),
 406                     Optional.absent(),
 407                     streamDetails);
 408         }
 409
 410         if (avatar != null) {
 411             if (avatar.isPresent()) {
 412                 avatarStore.storeProfileAvatar(getSelfAddress(),
 413                         outputStream -> IOUtils.copyFileToStream(avatar.get(), outputStream));
 414             } else {
 415                 avatarStore.deleteProfileAvatar(getSelfAddress());
 416             }
 417         }
 418         account.getProfileStore().storeProfile(account.getSelfRecipientId(), newProfile);
 419
 420         try {
 421             sendSyncMessage(SignalServiceSyncMessage.forFetchLatest(SignalServiceSyncMessage.FetchType.LOCAL_PROFILE));
 422         } catch (UntrustedIdentityException ignored) {
 423         }
 424     }
 425
 426     public void unregister() throws IOException {
 427         // When setting an empty GCM id, the Signal-Server also sets the fetchesMessages property to false.
 428         // If this is the master device, other users can't send messages to this number anymore.
 429         // If this is a linked device, other users can still send messages, but this device doesn't receive them anymore.
 430         accountManager.setGcmId(Optional.absent());
 431
 432         account.setRegistered(false);
 433     }
 434
 435     public void deleteAccount() throws IOException {
 436         accountManager.deleteAccount();
 437
 438         account.setRegistered(false);
 439     }
 440
 441     public List<Device> getLinkedDevices() throws IOException {
 442         var devices = accountManager.getDevices();
 443         account.setMultiDevice(devices.size() > 1);
 444         var identityKey = account.getIdentityKeyPair().getPrivateKey();
 445         return devices.stream().map(d -> {
 446             String deviceName = d.getName();
 447             if (deviceName != null) {
 448                 try {
 449                     deviceName = DeviceNameUtil.decryptDeviceName(deviceName, identityKey);
 450                 } catch (IOException e) {
 451                     logger.debug("Failed to decrypt device name, maybe plain text?", e);
 452                 }
 453             }
 454             return new Device(d.getId(), deviceName, d.getCreated(), d.getLastSeen());
 455         }).collect(Collectors.toList());
 456     }
 457
 458     public void removeLinkedDevices(int deviceId) throws IOException {
 459         accountManager.removeDevice(deviceId);
 460         var devices = accountManager.getDevices();
 461         account.setMultiDevice(devices.size() > 1);
 462     }
 463
 464     public void addDeviceLink(URI linkUri) throws IOException, InvalidKeyException {
 465         var info = DeviceLinkInfo.parseDeviceLinkUri(linkUri);
 466
 467         addDevice(info.deviceIdentifier, info.deviceKey);
 468     }
 469
 470     private void addDevice(String deviceIdentifier, ECPublicKey deviceKey) throws IOException, InvalidKeyException {
 471         var identityKeyPair = getIdentityKeyPair();
 472         var verificationCode = accountManager.getNewDeviceVerificationCode();
 473
 474         accountManager.addDevice(deviceIdentifier,
 475                 deviceKey,
 476                 identityKeyPair,
 477                 Optional.of(account.getProfileKey().serialize()),
 478                 verificationCode);
 479         account.setMultiDevice(true);
 480     }
 481
 482     public void setRegistrationLockPin(Optional<String> pin) throws IOException, UnauthenticatedResponseException {
 483         if (!account.isMasterDevice()) {
 484             throw new RuntimeException("Only master device can set a PIN");
 485         }
 486         if (pin.isPresent()) {
 487             final var masterKey = account.getPinMasterKey() != null
 488                     ? account.getPinMasterKey()
 489                     : KeyUtils.createMasterKey();
 490
 491             pinHelper.setRegistrationLockPin(pin.get(), masterKey);
 492
 493             account.setRegistrationLockPin(pin.get(), masterKey);
 494         } else {
 495             // Remove legacy registration lock
 496             accountManager.removeRegistrationLockV1();
 497
 498             // Remove KBS Pin
 499             pinHelper.removeRegistrationLockPin();
 500
 501             account.setRegistrationLockPin(null, null);
 502         }
 503     }
 504
 505     void refreshPreKeys() throws IOException {
 506         var oneTimePreKeys = generatePreKeys();
 507         final var identityKeyPair = getIdentityKeyPair();
 508         var signedPreKeyRecord = generateSignedPreKey(identityKeyPair);
 509
 510         accountManager.setPreKeys(identityKeyPair.getPublicKey(), signedPreKeyRecord, oneTimePreKeys);
 511     }
 512
 513     private List<PreKeyRecord> generatePreKeys() {
 514         final var offset = account.getPreKeyIdOffset();
 515
 516         var records = KeyUtils.generatePreKeyRecords(offset, ServiceConfig.PREKEY_BATCH_SIZE);
 517         account.addPreKeys(records);
 518
 519         return records;
 520     }
 521
 522     private SignedPreKeyRecord generateSignedPreKey(IdentityKeyPair identityKeyPair) {
 523         final var signedPreKeyId = account.getNextSignedPreKeyId();
 524
 525         var record = KeyUtils.generateSignedPreKeyRecord(identityKeyPair, signedPreKeyId);
 526         account.addSignedPreKey(record);
 527
 528         return record;
 529     }
 530
 531     private SignalServiceMessagePipe getOrCreateMessagePipe() {
 532         if (messagePipe == null) {
 533             messagePipe = messageReceiver.createMessagePipe();
 534         }
 535         return messagePipe;
 536     }
 537
 538     private SignalServiceMessagePipe getOrCreateUnidentifiedMessagePipe() {
 539         if (unidentifiedMessagePipe == null) {
 540             unidentifiedMessagePipe = messageReceiver.createUnidentifiedMessagePipe();
 541         }
 542         return unidentifiedMessagePipe;
 543     }
 544
 545     private SignalServiceMessageSender createMessageSender() {
 546         return new SignalServiceMessageSender(serviceEnvironmentConfig.getSignalServiceConfiguration(),
 547                 account.getUuid(),
 548                 account.getUsername(),
 549                 account.getPassword(),
 550                 account.getDeviceId(),
 551                 account.getSignalProtocolStore(),
 552                 sessionLock,
 553                 userAgent,
 554                 account.isMultiDevice(),
 555                 Optional.fromNullable(messagePipe),
 556                 Optional.fromNullable(unidentifiedMessagePipe),
 557                 Optional.absent(),
 558                 clientZkProfileOperations,
 559                 executor,
 560                 ServiceConfig.MAX_ENVELOPE_SIZE,
 561                 ServiceConfig.AUTOMATIC_NETWORK_RETRY);
 562     }
 563
 564     public Profile getRecipientProfile(
 565             RecipientId recipientId
 566     ) {
 567         return getRecipientProfile(recipientId, false);
 568     }
 569
 570     private final Set<RecipientId> pendingProfileRequest = new HashSet<>();
 571
 572     Profile getRecipientProfile(
 573             RecipientId recipientId, boolean force
 574     ) {
 575         var profile = account.getProfileStore().getProfile(recipientId);
 576
 577         var now = new Date().getTime();
 578         // Profiles are cached for 24h before retrieving them again, unless forced
 579         if (!force && profile != null && now - profile.getLastUpdateTimestamp() < 24 * 60 * 60 * 1000) {
 580             return profile;
 581         }
 582
 583         synchronized (pendingProfileRequest) {
 584             if (pendingProfileRequest.contains(recipientId)) {
 585                 return profile;
 586             }
 587             pendingProfileRequest.add(recipientId);
 588         }
 589         final SignalServiceProfile encryptedProfile;
 590         try {
 591             encryptedProfile = retrieveEncryptedProfile(recipientId);
 592         } finally {
 593             synchronized (pendingProfileRequest) {
 594                 pendingProfileRequest.remove(recipientId);
 595             }
 596         }
 597         if (encryptedProfile == null) {
 598             return null;
 599         }
 600
 601         var profileKey = account.getProfileStore().getProfileKey(recipientId);
 602         if (profileKey == null) {
 603             profile = new Profile(new Date().getTime(),
 604                     null,
 605                     null,
 606                     null,
 607                     null,
 608                     ProfileUtils.getUnidentifiedAccessMode(encryptedProfile, null),
 609                     ProfileUtils.getCapabilities(encryptedProfile));
 610         } else {
 611             profile = decryptProfileAndDownloadAvatar(recipientId, profileKey, encryptedProfile);
 612         }
 613         account.getProfileStore().storeProfile(recipientId, profile);
 614
 615         return profile;
 616     }
 617
 618     private SignalServiceProfile retrieveEncryptedProfile(RecipientId recipientId) {
 619         try {
 620             return retrieveProfileAndCredential(recipientId, SignalServiceProfile.RequestType.PROFILE).getProfile();
 621         } catch (IOException e) {
 622             logger.warn("Failed to retrieve profile, ignoring: {}", e.getMessage());
 623             return null;
 624         }
 625     }
 626
 627     private ProfileAndCredential retrieveProfileAndCredential(
 628             final RecipientId recipientId, final SignalServiceProfile.RequestType requestType
 629     ) throws IOException {
 630         final var profileAndCredential = profileHelper.retrieveProfileSync(recipientId, requestType);
 631         final var profile = profileAndCredential.getProfile();
 632
 633         try {
 634             var newIdentity = account.getIdentityKeyStore()
 635                     .saveIdentity(recipientId,
 636                             new IdentityKey(Base64.getDecoder().decode(profile.getIdentityKey())),
 637                             new Date());
 638
 639             if (newIdentity) {
 640                 account.getSessionStore().archiveSessions(recipientId);
 641             }
 642         } catch (InvalidKeyException ignored) {
 643             logger.warn("Got invalid identity key in profile for {}",
 644                     resolveSignalServiceAddress(recipientId).getLegacyIdentifier());
 645         }
 646         return profileAndCredential;
 647     }
 648
 649     private ProfileKeyCredential getRecipientProfileKeyCredential(RecipientId recipientId) {
 650         var profileKeyCredential = account.getProfileStore().getProfileKeyCredential(recipientId);
 651         if (profileKeyCredential != null) {
 652             return profileKeyCredential;
 653         }
 654
 655         ProfileAndCredential profileAndCredential;
 656         try {
 657             profileAndCredential = retrieveProfileAndCredential(recipientId,
 658                     SignalServiceProfile.RequestType.PROFILE_AND_CREDENTIAL);
 659         } catch (IOException e) {
 660             logger.warn("Failed to retrieve profile key credential, ignoring: {}", e.getMessage());
 661             return null;
 662         }
 663
 664         profileKeyCredential = profileAndCredential.getProfileKeyCredential().orNull();
 665         account.getProfileStore().storeProfileKeyCredential(recipientId, profileKeyCredential);
 666
 667         var profileKey = account.getProfileStore().getProfileKey(recipientId);
 668         if (profileKey != null) {
 669             final var profile = decryptProfileAndDownloadAvatar(recipientId,
 670                     profileKey,
 671                     profileAndCredential.getProfile());
 672             account.getProfileStore().storeProfile(recipientId, profile);
 673         }
 674
 675         return profileKeyCredential;
 676     }
 677
 678     private Profile decryptProfileAndDownloadAvatar(
 679             final RecipientId recipientId, final ProfileKey profileKey, final SignalServiceProfile encryptedProfile
 680     ) {
 681         if (encryptedProfile.getAvatar() != null) {
 682             downloadProfileAvatar(resolveSignalServiceAddress(recipientId), encryptedProfile.getAvatar(), profileKey);
 683         }
 684
 685         return ProfileUtils.decryptProfile(profileKey, encryptedProfile);
 686     }
 687
 688     private Optional<SignalServiceAttachmentStream> createGroupAvatarAttachment(GroupId groupId) throws IOException {
 689         final var streamDetails = avatarStore.retrieveGroupAvatar(groupId);
 690         if (streamDetails == null) {
 691             return Optional.absent();
 692         }
 693
 694         return Optional.of(AttachmentUtils.createAttachment(streamDetails, Optional.absent()));
 695     }
 696
 697     private Optional<SignalServiceAttachmentStream> createContactAvatarAttachment(SignalServiceAddress address) throws IOException {
 698         final var streamDetails = avatarStore.retrieveContactAvatar(address);
 699         if (streamDetails == null) {
 700             return Optional.absent();
 701         }
 702
 703         return Optional.of(AttachmentUtils.createAttachment(streamDetails, Optional.absent()));
 704     }
 705
 706     private GroupInfo getGroupForSending(GroupId groupId) throws GroupNotFoundException, NotAGroupMemberException {
 707         var g = getGroup(groupId);
 708         if (g == null) {
 709             throw new GroupNotFoundException(groupId);
 710         }
 711         if (!g.isMember(account.getSelfRecipientId())) {
 712             throw new NotAGroupMemberException(groupId, g.getTitle());
 713         }
 714         return g;
 715     }
 716
 717     private GroupInfo getGroupForUpdating(GroupId groupId) throws GroupNotFoundException, NotAGroupMemberException {
 718         var g = getGroup(groupId);
 719         if (g == null) {
 720             throw new GroupNotFoundException(groupId);
 721         }
 722         if (!g.isMember(account.getSelfRecipientId()) && !g.isPendingMember(account.getSelfRecipientId())) {
 723             throw new NotAGroupMemberException(groupId, g.getTitle());
 724         }
 725         return g;
 726     }
 727
 728     public List<GroupInfo> getGroups() {
 729         return account.getGroupStore().getGroups();
 730     }
 731
 732     public Pair<Long, List<SendMessageResult>> sendGroupMessage(
 733             String messageText, List<String> attachments, GroupId groupId
 734     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 735         final var messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
 736         if (attachments != null) {
 737             messageBuilder.withAttachments(AttachmentUtils.getSignalServiceAttachments(attachments));
 738         }
 739
 740         return sendGroupMessage(messageBuilder, groupId);
 741     }
 742
 743     public Pair<Long, List<SendMessageResult>> sendGroupMessageReaction(
 744             String emoji, boolean remove, String targetAuthor, long targetSentTimestamp, GroupId groupId
 745     ) throws IOException, InvalidNumberException, NotAGroupMemberException, GroupNotFoundException {
 746         var targetAuthorRecipientId = canonicalizeAndResolveRecipient(targetAuthor);
 747         var reaction = new SignalServiceDataMessage.Reaction(emoji,
 748                 remove,
 749                 resolveSignalServiceAddress(targetAuthorRecipientId),
 750                 targetSentTimestamp);
 751         final var messageBuilder = SignalServiceDataMessage.newBuilder().withReaction(reaction);
 752
 753         return sendGroupMessage(messageBuilder, groupId);
 754     }
 755
 756     public Pair<Long, List<SendMessageResult>> sendGroupMessage(
 757             SignalServiceDataMessage.Builder messageBuilder, GroupId groupId
 758     ) throws IOException, GroupNotFoundException, NotAGroupMemberException {
 759         final var g = getGroupForSending(groupId);
 760
 761         GroupUtils.setGroupContext(messageBuilder, g);
 762         messageBuilder.withExpiration(g.getMessageExpirationTime());
 763
 764         return sendMessage(messageBuilder, g.getMembersWithout(account.getSelfRecipientId()));
 765     }
 766
 767     public Pair<Long, List<SendMessageResult>> sendQuitGroupMessage(
 768             GroupId groupId, Set<String> groupAdmins
 769     ) throws GroupNotFoundException, IOException, NotAGroupMemberException, InvalidNumberException, LastGroupAdminException {
 770         SignalServiceDataMessage.Builder messageBuilder;
 771
 772         final var g = getGroupForUpdating(groupId);
 773         if (g instanceof GroupInfoV1) {
 774             var groupInfoV1 = (GroupInfoV1) g;
 775             var group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.QUIT).withId(groupId.serialize()).build();
 776             messageBuilder = SignalServiceDataMessage.newBuilder().asGroupMessage(group);
 777             groupInfoV1.removeMember(account.getSelfRecipientId());
 778             account.getGroupStore().updateGroup(groupInfoV1);
 779         } else {
 780             final var groupInfoV2 = (GroupInfoV2) g;
 781             final var currentAdmins = g.getAdminMembers();
 782             final var newAdmins = getSignalServiceAddresses(groupAdmins);
 783             newAdmins.removeAll(currentAdmins);
 784             newAdmins.retainAll(g.getMembers());
 785             if (currentAdmins.contains(getSelfRecipientId())
 786                     && currentAdmins.size() == 1
 787                     && g.getMembers().size() > 1
 788                     && newAdmins.size() == 0) {
 789                 // Last admin can't leave the group, unless she's also the last member
 790                 throw new LastGroupAdminException(g.getGroupId(), g.getTitle());
 791             }
 792             final var groupGroupChangePair = groupV2Helper.leaveGroup(groupInfoV2, newAdmins);
 793             groupInfoV2.setGroup(groupGroupChangePair.first(), this::resolveRecipient);
 794             messageBuilder = getGroupUpdateMessageBuilder(groupInfoV2, groupGroupChangePair.second().toByteArray());
 795             account.getGroupStore().updateGroup(groupInfoV2);
 796         }
 797
 798         return sendMessage(messageBuilder, g.getMembersWithout(account.getSelfRecipientId()));
 799     }
 800
 801     public Pair<GroupId, List<SendMessageResult>> createGroup(
 802             String name, List<String> members, File avatarFile
 803     ) throws IOException, AttachmentInvalidException, InvalidNumberException {
 804         return createGroup(name, members == null ? null : getSignalServiceAddresses(members), avatarFile);
 805     }
 806
 807     private Pair<GroupId, List<SendMessageResult>> createGroup(
 808             String name, Set<RecipientId> members, File avatarFile
 809     ) throws IOException, AttachmentInvalidException {
 810         final var selfRecipientId = account.getSelfRecipientId();
 811         if (members != null && members.contains(selfRecipientId)) {
 812             members = new HashSet<>(members);
 813             members.remove(selfRecipientId);
 814         }
 815
 816         var gv2Pair = groupV2Helper.createGroup(name == null ? "" : name,
 817                 members == null ? Set.of() : members,
 818                 avatarFile);
 819
 820         SignalServiceDataMessage.Builder messageBuilder;
 821         if (gv2Pair == null) {
 822             // Failed to create v2 group, creating v1 group instead
 823             var gv1 = new GroupInfoV1(GroupIdV1.createRandom());
 824             gv1.addMembers(List.of(selfRecipientId));
 825             final var result = updateGroupV1(gv1, name, members, avatarFile);
 826             return new Pair<>(gv1.getGroupId(), result.second());
 827         }
 828
 829         final var gv2 = gv2Pair.first();
 830         final var decryptedGroup = gv2Pair.second();
 831
 832         gv2.setGroup(decryptedGroup, this::resolveRecipient);
 833         if (avatarFile != null) {
 834             avatarStore.storeGroupAvatar(gv2.getGroupId(),
 835                     outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
 836         }
 837         messageBuilder = getGroupUpdateMessageBuilder(gv2, null);
 838         account.getGroupStore().updateGroup(gv2);
 839
 840         final var result = sendMessage(messageBuilder, gv2.getMembersIncludingPendingWithout(selfRecipientId));
 841         return new Pair<>(gv2.getGroupId(), result.second());
 842     }
 843
 844     public Pair<Long, List<SendMessageResult>> updateGroup(
 845             GroupId groupId,
 846             String name,
 847             String description,
 848             List<String> members,
 849             List<String> removeMembers,
 850             List<String> admins,
 851             List<String> removeAdmins,
 852             boolean resetGroupLink,
 853             GroupLinkState groupLinkState,
 854             GroupPermission addMemberPermission,
 855             GroupPermission editDetailsPermission,
 856             File avatarFile,
 857             Integer expirationTimer
 858     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, InvalidNumberException, NotAGroupMemberException {
 859         return updateGroup(groupId,
 860                 name,
 861                 description,
 862                 members == null ? null : getSignalServiceAddresses(members),
 863                 removeMembers == null ? null : getSignalServiceAddresses(removeMembers),
 864                 admins == null ? null : getSignalServiceAddresses(admins),
 865                 removeAdmins == null ? null : getSignalServiceAddresses(removeAdmins),
 866                 resetGroupLink,
 867                 groupLinkState,
 868                 addMemberPermission,
 869                 editDetailsPermission,
 870                 avatarFile,
 871                 expirationTimer);
 872     }
 873
 874     private Pair<Long, List<SendMessageResult>> updateGroup(
 875             final GroupId groupId,
 876             final String name,
 877             final String description,
 878             final Set<RecipientId> members,
 879             final Set<RecipientId> removeMembers,
 880             final Set<RecipientId> admins,
 881             final Set<RecipientId> removeAdmins,
 882             final boolean resetGroupLink,
 883             final GroupLinkState groupLinkState,
 884             final GroupPermission addMemberPermission,
 885             final GroupPermission editDetailsPermission,
 886             final File avatarFile,
 887             final Integer expirationTimer
 888     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 889         var group = getGroupForUpdating(groupId);
 890
 891         if (group instanceof GroupInfoV2) {
 892             return updateGroupV2((GroupInfoV2) group,
 893                     name,
 894                     description,
 895                     members,
 896                     removeMembers,
 897                     admins,
 898                     removeAdmins,
 899                     resetGroupLink,
 900                     groupLinkState,
 901                     addMemberPermission,
 902                     editDetailsPermission,
 903                     avatarFile,
 904                     expirationTimer);
 905         }
 906
 907         final var gv1 = (GroupInfoV1) group;
 908         final var result = updateGroupV1(gv1, name, members, avatarFile);
 909         if (expirationTimer != null) {
 910             setExpirationTimer(gv1, expirationTimer);
 911         }
 912         return result;
 913     }
 914
 915     private Pair<Long, List<SendMessageResult>> updateGroupV1(
 916             final GroupInfoV1 gv1, final String name, final Set<RecipientId> members, final File avatarFile
 917     ) throws IOException, AttachmentInvalidException {
 918         updateGroupV1Details(gv1, name, members, avatarFile);
 919         var messageBuilder = getGroupUpdateMessageBuilder(gv1);
 920
 921         account.getGroupStore().updateGroup(gv1);
 922
 923         return sendMessage(messageBuilder, gv1.getMembersIncludingPendingWithout(account.getSelfRecipientId()));
 924     }
 925
 926     private void updateGroupV1Details(
 927             final GroupInfoV1 g, final String name, final Collection<RecipientId> members, final File avatarFile
 928     ) throws IOException {
 929         if (name != null) {
 930             g.name = name;
 931         }
 932
 933         if (members != null) {
 934             final var newMemberAddresses = members.stream()
 935                     .filter(member -> !g.isMember(member))
 936                     .map(this::resolveSignalServiceAddress)
 937                     .collect(Collectors.toList());
 938             final var newE164Members = new HashSet<String>();
 939             for (var member : newMemberAddresses) {
 940                 if (!member.getNumber().isPresent()) {
 941                     continue;
 942                 }
 943                 newE164Members.add(member.getNumber().get());
 944             }
 945
 946             final var registeredUsers = getRegisteredUsers(newE164Members);
 947             if (registeredUsers.size() != newE164Members.size()) {
 948                 // Some of the new members are not registered on Signal
 949                 newE164Members.removeAll(registeredUsers.keySet());
 950                 throw new IOException("Failed to add members "
 951                         + String.join(", ", newE164Members)
 952                         + " to group: Not registered on Signal");
 953             }
 954
 955             g.addMembers(members);
 956         }
 957
 958         if (avatarFile != null) {
 959             avatarStore.storeGroupAvatar(g.getGroupId(),
 960                     outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
 961         }
 962     }
 963
 964     private Pair<Long, List<SendMessageResult>> updateGroupV2(
 965             final GroupInfoV2 group,
 966             final String name,
 967             final String description,
 968             final Set<RecipientId> members,
 969             final Set<RecipientId> removeMembers,
 970             final Set<RecipientId> admins,
 971             final Set<RecipientId> removeAdmins,
 972             final boolean resetGroupLink,
 973             final GroupLinkState groupLinkState,
 974             final GroupPermission addMemberPermission,
 975             final GroupPermission editDetailsPermission,
 976             final File avatarFile,
 977             Integer expirationTimer
 978     ) throws IOException {
 979         Pair<Long, List<SendMessageResult>> result = null;
 980         if (group.isPendingMember(account.getSelfRecipientId())) {
 981             var groupGroupChangePair = groupV2Helper.acceptInvite(group);
 982             result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
 983         }
 984
 985         if (members != null) {
 986             final var newMembers = new HashSet<>(members);
 987             newMembers.removeAll(group.getMembers());
 988             if (newMembers.size() > 0) {
 989                 var groupGroupChangePair = groupV2Helper.addMembers(group, newMembers);
 990                 result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
 991             }
 992         }
 993
 994         if (removeMembers != null) {
 995             var existingRemoveMembers = new HashSet<>(removeMembers);
 996             existingRemoveMembers.retainAll(group.getMembers());
 997             existingRemoveMembers.remove(getSelfRecipientId());// self can be removed with sendQuitGroupMessage
 998             if (existingRemoveMembers.size() > 0) {
 999                 var groupGroupChangePair = groupV2Helper.removeMembers(group, existingRemoveMembers);
1000                 result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1001             }
1002
1003             var pendingRemoveMembers = new HashSet<>(removeMembers);
1004             pendingRemoveMembers.retainAll(group.getPendingMembers());
1005             if (pendingRemoveMembers.size() > 0) {
1006                 var groupGroupChangePair = groupV2Helper.revokeInvitedMembers(group, pendingRemoveMembers);
1007                 result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1008             }
1009         }
1010
1011         if (admins != null) {
1012             final var newAdmins = new HashSet<>(admins);
1013             newAdmins.retainAll(group.getMembers());
1014             newAdmins.removeAll(group.getAdminMembers());
1015             if (newAdmins.size() > 0) {
1016                 for (var admin : newAdmins) {
1017                     var groupGroupChangePair = groupV2Helper.setMemberAdmin(group, admin, true);
1018                     result = sendUpdateGroupV2Message(group,
1019                             groupGroupChangePair.first(),
1020                             groupGroupChangePair.second());
1021                 }
1022             }
1023         }
1024
1025         if (removeAdmins != null) {
1026             final var existingRemoveAdmins = new HashSet<>(removeAdmins);
1027             existingRemoveAdmins.retainAll(group.getAdminMembers());
1028             if (existingRemoveAdmins.size() > 0) {
1029                 for (var admin : existingRemoveAdmins) {
1030                     var groupGroupChangePair = groupV2Helper.setMemberAdmin(group, admin, false);
1031                     result = sendUpdateGroupV2Message(group,
1032                             groupGroupChangePair.first(),
1033                             groupGroupChangePair.second());
1034                 }
1035             }
1036         }
1037
1038         if (resetGroupLink) {
1039             var groupGroupChangePair = groupV2Helper.resetGroupLinkPassword(group);
1040             result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1041         }
1042
1043         if (groupLinkState != null) {
1044             var groupGroupChangePair = groupV2Helper.setGroupLinkState(group, groupLinkState);
1045             result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1046         }
1047
1048         if (addMemberPermission != null) {
1049             var groupGroupChangePair = groupV2Helper.setAddMemberPermission(group, addMemberPermission);
1050             result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1051         }
1052
1053         if (editDetailsPermission != null) {
1054             var groupGroupChangePair = groupV2Helper.setEditDetailsPermission(group, editDetailsPermission);
1055             result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1056         }
1057
1058         if (expirationTimer != null) {
1059             var groupGroupChangePair = groupV2Helper.setMessageExpirationTimer(group, expirationTimer);
1060             result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1061         }
1062
1063         if (name != null || description != null || avatarFile != null) {
1064             var groupGroupChangePair = groupV2Helper.updateGroup(group, name, description, avatarFile);
1065             if (avatarFile != null) {
1066                 avatarStore.storeGroupAvatar(group.getGroupId(),
1067                         outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
1068             }
1069             result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1070         }
1071
1072         return result;
1073     }
1074
1075     public Pair<GroupId, List<SendMessageResult>> joinGroup(
1076             GroupInviteLinkUrl inviteLinkUrl
1077     ) throws IOException, GroupLinkNotActiveException {
1078         final var groupJoinInfo = groupV2Helper.getDecryptedGroupJoinInfo(inviteLinkUrl.getGroupMasterKey(),
1079                 inviteLinkUrl.getPassword());
1080         final var groupChange = groupV2Helper.joinGroup(inviteLinkUrl.getGroupMasterKey(),
1081                 inviteLinkUrl.getPassword(),
1082                 groupJoinInfo);
1083         final var group = getOrMigrateGroup(inviteLinkUrl.getGroupMasterKey(),
1084                 groupJoinInfo.getRevision() + 1,
1085                 groupChange.toByteArray());
1086
1087         if (group.getGroup() == null) {
1088             // Only requested member, can't send update to group members
1089             return new Pair<>(group.getGroupId(), List.of());
1090         }
1091
1092         final var result = sendUpdateGroupV2Message(group, group.getGroup(), groupChange);
1093
1094         return new Pair<>(group.getGroupId(), result.second());
1095     }
1096
1097     private Pair<Long, List<SendMessageResult>> sendUpdateGroupV2Message(
1098             GroupInfoV2 group, DecryptedGroup newDecryptedGroup, GroupChange groupChange
1099     ) throws IOException {
1100         final var selfRecipientId = account.getSelfRecipientId();
1101         final var members = group.getMembersIncludingPendingWithout(selfRecipientId);
1102         group.setGroup(newDecryptedGroup, this::resolveRecipient);
1103         members.addAll(group.getMembersIncludingPendingWithout(selfRecipientId));
1104
1105         final var messageBuilder = getGroupUpdateMessageBuilder(group, groupChange.toByteArray());
1106         account.getGroupStore().updateGroup(group);
1107         return sendMessage(messageBuilder, members);
1108     }
1109
1110     private static int currentTimeDays() {
1111         return (int) TimeUnit.MILLISECONDS.toDays(System.currentTimeMillis());
1112     }
1113
1114     private GroupsV2AuthorizationString getGroupAuthForToday(
1115             final GroupSecretParams groupSecretParams
1116     ) throws IOException {
1117         final var today = currentTimeDays();
1118         // Returns credentials for the next 7 days
1119         final var credentials = groupsV2Api.getCredentials(today);
1120         // TODO cache credentials until they expire
1121         var authCredentialResponse = credentials.get(today);
1122         try {
1123             return groupsV2Api.getGroupsV2AuthorizationString(account.getUuid(),
1124                     today,
1125                     groupSecretParams,
1126                     authCredentialResponse);
1127         } catch (VerificationFailedException e) {
1128             throw new IOException(e);
1129         }
1130     }
1131
1132     Pair<Long, List<SendMessageResult>> sendGroupInfoMessage(
1133             GroupIdV1 groupId, SignalServiceAddress recipient
1134     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, AttachmentInvalidException {
1135         GroupInfoV1 g;
1136         var group = getGroupForSending(groupId);
1137         if (!(group instanceof GroupInfoV1)) {
1138             throw new RuntimeException("Received an invalid group request for a v2 group!");
1139         }
1140         g = (GroupInfoV1) group;
1141
1142         final var recipientId = resolveRecipient(recipient);
1143         if (!g.isMember(recipientId)) {
1144             throw new NotAGroupMemberException(groupId, g.name);
1145         }
1146
1147         var messageBuilder = getGroupUpdateMessageBuilder(g);
1148
1149         // Send group message only to the recipient who requested it
1150         return sendMessage(messageBuilder, Set.of(recipientId));
1151     }
1152
1153     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfoV1 g) throws AttachmentInvalidException {
1154         var group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.UPDATE)
1155                 .withId(g.getGroupId().serialize())
1156                 .withName(g.name)
1157                 .withMembers(g.getMembers()
1158                         .stream()
1159                         .map(this::resolveSignalServiceAddress)
1160                         .collect(Collectors.toList()));
1161
1162         try {
1163             final var attachment = createGroupAvatarAttachment(g.getGroupId());
1164             if (attachment.isPresent()) {
1165                 group.withAvatar(attachment.get());
1166             }
1167         } catch (IOException e) {
1168             throw new AttachmentInvalidException(g.getGroupId().toBase64(), e);
1169         }
1170
1171         return SignalServiceDataMessage.newBuilder()
1172                 .asGroupMessage(group.build())
1173                 .withExpiration(g.getMessageExpirationTime());
1174     }
1175
1176     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfoV2 g, byte[] signedGroupChange) {
1177         var group = SignalServiceGroupV2.newBuilder(g.getMasterKey())
1178                 .withRevision(g.getGroup().getRevision())
1179                 .withSignedGroupChange(signedGroupChange);
1180         return SignalServiceDataMessage.newBuilder()
1181                 .asGroupMessage(group.build())
1182                 .withExpiration(g.getMessageExpirationTime());
1183     }
1184
1185     Pair<Long, List<SendMessageResult>> sendGroupInfoRequest(
1186             GroupIdV1 groupId, SignalServiceAddress recipient
1187     ) throws IOException {
1188         var group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.REQUEST_INFO).withId(groupId.serialize());
1189
1190         var messageBuilder = SignalServiceDataMessage.newBuilder().asGroupMessage(group.build());
1191
1192         // Send group info request message to the recipient who sent us a message with this groupId
1193         return sendMessage(messageBuilder, Set.of(resolveRecipient(recipient)));
1194     }
1195
1196     void sendReceipt(
1197             SignalServiceAddress remoteAddress, long messageId
1198     ) throws IOException, UntrustedIdentityException {
1199         var receiptMessage = new SignalServiceReceiptMessage(SignalServiceReceiptMessage.Type.DELIVERY,
1200                 List.of(messageId),
1201                 System.currentTimeMillis());
1202
1203         createMessageSender().sendReceipt(remoteAddress,
1204                 unidentifiedAccessHelper.getAccessFor(resolveRecipient(remoteAddress)),
1205                 receiptMessage);
1206     }
1207
1208     public Pair<Long, List<SendMessageResult>> sendMessage(
1209             String messageText, List<String> attachments, List<String> recipients
1210     ) throws IOException, AttachmentInvalidException, InvalidNumberException {
1211         final var messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
1212         if (attachments != null) {
1213             var attachmentStreams = AttachmentUtils.getSignalServiceAttachments(attachments);
1214
1215             // Upload attachments here, so we only upload once even for multiple recipients
1216             var messageSender = createMessageSender();
1217             var attachmentPointers = new ArrayList<SignalServiceAttachment>(attachmentStreams.size());
1218             for (var attachment : attachmentStreams) {
1219                 if (attachment.isStream()) {
1220                     attachmentPointers.add(messageSender.uploadAttachment(attachment.asStream()));
1221                 } else if (attachment.isPointer()) {
1222                     attachmentPointers.add(attachment.asPointer());
1223                 }
1224             }
1225
1226             messageBuilder.withAttachments(attachmentPointers);
1227         }
1228         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
1229     }
1230
1231     public Pair<Long, SendMessageResult> sendSelfMessage(
1232             String messageText, List<String> attachments
1233     ) throws IOException, AttachmentInvalidException {
1234         final var messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
1235         if (attachments != null) {
1236             messageBuilder.withAttachments(AttachmentUtils.getSignalServiceAttachments(attachments));
1237         }
1238         return sendSelfMessage(messageBuilder);
1239     }
1240
1241     public Pair<Long, List<SendMessageResult>> sendRemoteDeleteMessage(
1242             long targetSentTimestamp, List<String> recipients
1243     ) throws IOException, InvalidNumberException {
1244         var delete = new SignalServiceDataMessage.RemoteDelete(targetSentTimestamp);
1245         final var messageBuilder = SignalServiceDataMessage.newBuilder().withRemoteDelete(delete);
1246         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
1247     }
1248
1249     public Pair<Long, List<SendMessageResult>> sendGroupRemoteDeleteMessage(
1250             long targetSentTimestamp, GroupId groupId
1251     ) throws IOException, NotAGroupMemberException, GroupNotFoundException {
1252         var delete = new SignalServiceDataMessage.RemoteDelete(targetSentTimestamp);
1253         final var messageBuilder = SignalServiceDataMessage.newBuilder().withRemoteDelete(delete);
1254         return sendGroupMessage(messageBuilder, groupId);
1255     }
1256
1257     public Pair<Long, List<SendMessageResult>> sendMessageReaction(
1258             String emoji, boolean remove, String targetAuthor, long targetSentTimestamp, List<String> recipients
1259     ) throws IOException, InvalidNumberException {
1260         var targetAuthorRecipientId = canonicalizeAndResolveRecipient(targetAuthor);
1261         var reaction = new SignalServiceDataMessage.Reaction(emoji,
1262                 remove,
1263                 resolveSignalServiceAddress(targetAuthorRecipientId),
1264                 targetSentTimestamp);
1265         final var messageBuilder = SignalServiceDataMessage.newBuilder().withReaction(reaction);
1266         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
1267     }
1268
1269     public Pair<Long, List<SendMessageResult>> sendEndSessionMessage(List<String> recipients) throws IOException, InvalidNumberException {
1270         var messageBuilder = SignalServiceDataMessage.newBuilder().asEndSessionMessage();
1271
1272         final var signalServiceAddresses = getSignalServiceAddresses(recipients);
1273         try {
1274             return sendMessage(messageBuilder, signalServiceAddresses);
1275         } catch (Exception e) {
1276             for (var address : signalServiceAddresses) {
1277                 handleEndSession(address);
1278             }
1279             throw e;
1280         }
1281     }
1282
1283     void renewSession(RecipientId recipientId) throws IOException {
1284         account.getSessionStore().archiveSessions(recipientId);
1285         if (!recipientId.equals(getSelfRecipientId())) {
1286             sendNullMessage(recipientId);
1287         }
1288     }
1289
1290     public String getContactName(String number) throws InvalidNumberException {
1291         var contact = account.getContactStore().getContact(canonicalizeAndResolveRecipient(number));
1292         return contact == null || contact.getName() == null ? "" : contact.getName();
1293     }
1294
1295     public void setContactName(String number, String name) throws InvalidNumberException, NotMasterDeviceException {
1296         if (!account.isMasterDevice()) {
1297             throw new NotMasterDeviceException();
1298         }
1299         final var recipientId = canonicalizeAndResolveRecipient(number);
1300         var contact = account.getContactStore().getContact(recipientId);
1301         final var builder = contact == null ? Contact.newBuilder() : Contact.newBuilder(contact);
1302         account.getContactStore().storeContact(recipientId, builder.withName(name).build());
1303     }
1304
1305     public void setContactBlocked(
1306             String number, boolean blocked
1307     ) throws InvalidNumberException, NotMasterDeviceException {
1308         if (!account.isMasterDevice()) {
1309             throw new NotMasterDeviceException();
1310         }
1311         setContactBlocked(canonicalizeAndResolveRecipient(number), blocked);
1312     }
1313
1314     private void setContactBlocked(RecipientId recipientId, boolean blocked) {
1315         var contact = account.getContactStore().getContact(recipientId);
1316         final var builder = contact == null ? Contact.newBuilder() : Contact.newBuilder(contact);
1317         account.getContactStore().storeContact(recipientId, builder.withBlocked(blocked).build());
1318     }
1319
1320     public void setGroupBlocked(final GroupId groupId, final boolean blocked) throws GroupNotFoundException {
1321         var group = getGroup(groupId);
1322         if (group == null) {
1323             throw new GroupNotFoundException(groupId);
1324         }
1325
1326         group.setBlocked(blocked);
1327         account.getGroupStore().updateGroup(group);
1328     }
1329
1330     private void setExpirationTimer(RecipientId recipientId, int messageExpirationTimer) {
1331         var contact = account.getContactStore().getContact(recipientId);
1332         if (contact != null && contact.getMessageExpirationTime() == messageExpirationTimer) {
1333             return;
1334         }
1335         final var builder = contact == null ? Contact.newBuilder() : Contact.newBuilder(contact);
1336         account.getContactStore()
1337                 .storeContact(recipientId, builder.withMessageExpirationTime(messageExpirationTimer).build());
1338     }
1339
1340     private void sendExpirationTimerUpdate(RecipientId recipientId) throws IOException {
1341         final var messageBuilder = SignalServiceDataMessage.newBuilder().asExpirationUpdate();
1342         sendMessage(messageBuilder, Set.of(recipientId));
1343     }
1344
1345     /**
1346      * Change the expiration timer for a contact
1347      */
1348     public void setExpirationTimer(
1349             String number, int messageExpirationTimer
1350     ) throws IOException, InvalidNumberException {
1351         var recipientId = canonicalizeAndResolveRecipient(number);
1352         setExpirationTimer(recipientId, messageExpirationTimer);
1353         sendExpirationTimerUpdate(recipientId);
1354     }
1355
1356     /**
1357      * Change the expiration timer for a group
1358      */
1359     private void setExpirationTimer(
1360             GroupInfoV1 groupInfoV1, int messageExpirationTimer
1361     ) throws NotAGroupMemberException, GroupNotFoundException, IOException {
1362         groupInfoV1.messageExpirationTime = messageExpirationTimer;
1363         account.getGroupStore().updateGroup(groupInfoV1);
1364         sendExpirationTimerUpdate(groupInfoV1.getGroupId());
1365     }
1366
1367     private void sendExpirationTimerUpdate(GroupIdV1 groupId) throws IOException, NotAGroupMemberException, GroupNotFoundException {
1368         final var messageBuilder = SignalServiceDataMessage.newBuilder().asExpirationUpdate();
1369         sendGroupMessage(messageBuilder, groupId);
1370     }
1371
1372     /**
1373      * Upload the sticker pack from path.
1374      *
1375      * @param path Path can be a path to a manifest.json file or to a zip file that contains a manifest.json file
1376      * @return if successful, returns the URL to install the sticker pack in the signal app
1377      */
1378     public String uploadStickerPack(File path) throws IOException, StickerPackInvalidException {
1379         var manifest = StickerUtils.getSignalServiceStickerManifestUpload(path);
1380
1381         var messageSender = createMessageSender();
1382
1383         var packKey = KeyUtils.createStickerUploadKey();
1384         var packId = messageSender.uploadStickerManifest(manifest, packKey);
1385
1386         var sticker = new Sticker(StickerPackId.deserialize(Hex.fromStringCondensed(packId)), packKey);
1387         account.getStickerStore().updateSticker(sticker);
1388
1389         try {
1390             return new URI("https",
1391                     "signal.art",
1392                     "/addstickers/",
1393                     "pack_id=" + URLEncoder.encode(packId, StandardCharsets.UTF_8) + "&pack_key=" + URLEncoder.encode(
1394                             Hex.toStringCondensed(packKey),
1395                             StandardCharsets.UTF_8)).toString();
1396         } catch (URISyntaxException e) {
1397             throw new AssertionError(e);
1398         }
1399     }
1400
1401     public void requestAllSyncData() throws IOException {
1402         requestSyncGroups();
1403         requestSyncContacts();
1404         requestSyncBlocked();
1405         requestSyncConfiguration();
1406         requestSyncKeys();
1407     }
1408
1409     private void requestSyncGroups() throws IOException {
1410         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1411                 .setType(SignalServiceProtos.SyncMessage.Request.Type.GROUPS)
1412                 .build();
1413         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1414         try {
1415             sendSyncMessage(message);
1416         } catch (UntrustedIdentityException e) {
1417             throw new AssertionError(e);
1418         }
1419     }
1420
1421     private void requestSyncContacts() throws IOException {
1422         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1423                 .setType(SignalServiceProtos.SyncMessage.Request.Type.CONTACTS)
1424                 .build();
1425         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1426         try {
1427             sendSyncMessage(message);
1428         } catch (UntrustedIdentityException e) {
1429             throw new AssertionError(e);
1430         }
1431     }
1432
1433     private void requestSyncBlocked() throws IOException {
1434         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1435                 .setType(SignalServiceProtos.SyncMessage.Request.Type.BLOCKED)
1436                 .build();
1437         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1438         try {
1439             sendSyncMessage(message);
1440         } catch (UntrustedIdentityException e) {
1441             throw new AssertionError(e);
1442         }
1443     }
1444
1445     private void requestSyncConfiguration() throws IOException {
1446         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1447                 .setType(SignalServiceProtos.SyncMessage.Request.Type.CONFIGURATION)
1448                 .build();
1449         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1450         try {
1451             sendSyncMessage(message);
1452         } catch (UntrustedIdentityException e) {
1453             throw new AssertionError(e);
1454         }
1455     }
1456
1457     private void requestSyncKeys() throws IOException {
1458         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1459                 .setType(SignalServiceProtos.SyncMessage.Request.Type.KEYS)
1460                 .build();
1461         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1462         try {
1463             sendSyncMessage(message);
1464         } catch (UntrustedIdentityException e) {
1465             throw new AssertionError(e);
1466         }
1467     }
1468
1469     private byte[] getSenderCertificate() {
1470         byte[] certificate;
1471         try {
1472             if (account.isPhoneNumberShared()) {
1473                 certificate = accountManager.getSenderCertificate();
1474             } else {
1475                 certificate = accountManager.getSenderCertificateForPhoneNumberPrivacy();
1476             }
1477         } catch (IOException e) {
1478             logger.warn("Failed to get sender certificate, ignoring: {}", e.getMessage());
1479             return null;
1480         }
1481         // TODO cache for a day
1482         return certificate;
1483     }
1484
1485     private void sendSyncMessage(SignalServiceSyncMessage message) throws IOException, UntrustedIdentityException {
1486         var messageSender = createMessageSender();
1487         messageSender.sendMessage(message, unidentifiedAccessHelper.getAccessForSync());
1488     }
1489
1490     private Set<RecipientId> getSignalServiceAddresses(Collection<String> numbers) throws InvalidNumberException {
1491         final var signalServiceAddresses = new HashSet<SignalServiceAddress>(numbers.size());
1492         final var addressesMissingUuid = new HashSet<SignalServiceAddress>();
1493
1494         for (var number : numbers) {
1495             final var resolvedAddress = resolveSignalServiceAddress(canonicalizeAndResolveRecipient(number));
1496             if (resolvedAddress.getUuid().isPresent()) {
1497                 signalServiceAddresses.add(resolvedAddress);
1498             } else {
1499                 addressesMissingUuid.add(resolvedAddress);
1500             }
1501         }
1502
1503         final var numbersMissingUuid = addressesMissingUuid.stream()
1504                 .map(a -> a.getNumber().get())
1505                 .collect(Collectors.toSet());
1506         Map<String, UUID> registeredUsers;
1507         try {
1508             registeredUsers = getRegisteredUsers(numbersMissingUuid);
1509         } catch (IOException e) {
1510             logger.warn("Failed to resolve uuids from server, ignoring: {}", e.getMessage());
1511             registeredUsers = Map.of();
1512         }
1513
1514         for (var address : addressesMissingUuid) {
1515             final var number = address.getNumber().get();
1516             if (registeredUsers.containsKey(number)) {
1517                 final var newAddress = resolveSignalServiceAddress(resolveRecipientTrusted(new SignalServiceAddress(
1518                         registeredUsers.get(number),
1519                         number)));
1520                 signalServiceAddresses.add(newAddress);
1521             } else {
1522                 signalServiceAddresses.add(address);
1523             }
1524         }
1525
1526         return signalServiceAddresses.stream().map(this::resolveRecipient).collect(Collectors.toSet());
1527     }
1528
1529     private RecipientId refreshRegisteredUser(RecipientId recipientId) throws IOException {
1530         final var address = resolveSignalServiceAddress(recipientId);
1531         if (!address.getNumber().isPresent()) {
1532             return recipientId;
1533         }
1534         final var number = address.getNumber().get();
1535         final var uuidMap = getRegisteredUsers(Set.of(number));
1536         return resolveRecipientTrusted(new SignalServiceAddress(uuidMap.getOrDefault(number, null), number));
1537     }
1538
1539     private Map<String, UUID> getRegisteredUsers(final Set<String> numbers) throws IOException {
1540         try {
1541             return accountManager.getRegisteredUsers(ServiceConfig.getIasKeyStore(),
1542                     numbers,
1543                     serviceEnvironmentConfig.getCdsMrenclave());
1544         } catch (Quote.InvalidQuoteFormatException | UnauthenticatedQuoteException | SignatureException | UnauthenticatedResponseException | InvalidKeyException e) {
1545             throw new IOException(e);
1546         }
1547     }
1548
1549     private Pair<Long, List<SendMessageResult>> sendMessage(
1550             SignalServiceDataMessage.Builder messageBuilder, Set<RecipientId> recipientIds
1551     ) throws IOException {
1552         final var timestamp = System.currentTimeMillis();
1553         messageBuilder.withTimestamp(timestamp);
1554         getOrCreateMessagePipe();
1555         getOrCreateUnidentifiedMessagePipe();
1556         SignalServiceDataMessage message = null;
1557         try {
1558             message = messageBuilder.build();
1559             if (message.getGroupContext().isPresent()) {
1560                 try {
1561                     var messageSender = createMessageSender();
1562                     final var isRecipientUpdate = false;
1563                     final var recipientIdList = new ArrayList<>(recipientIds);
1564                     final var addresses = recipientIdList.stream()
1565                             .map(this::resolveSignalServiceAddress)
1566                             .collect(Collectors.toList());
1567                     var result = messageSender.sendMessage(addresses,
1568                             unidentifiedAccessHelper.getAccessFor(recipientIdList),
1569                             isRecipientUpdate,
1570                             message);
1571
1572                     for (var r : result) {
1573                         if (r.getIdentityFailure() != null) {
1574                             final var recipientId = resolveRecipient(r.getAddress());
1575                             final var newIdentity = account.getIdentityKeyStore()
1576                                     .saveIdentity(recipientId, r.getIdentityFailure().getIdentityKey(), new Date());
1577                             if (newIdentity) {
1578                                 account.getSessionStore().archiveSessions(recipientId);
1579                             }
1580                         }
1581                     }
1582
1583                     return new Pair<>(timestamp, result);
1584                 } catch (UntrustedIdentityException e) {
1585                     return new Pair<>(timestamp, List.of());
1586                 }
1587             } else {
1588                 // Send to all individually, so sync messages are sent correctly
1589                 messageBuilder.withProfileKey(account.getProfileKey().serialize());
1590                 var results = new ArrayList<SendMessageResult>(recipientIds.size());
1591                 for (var recipientId : recipientIds) {
1592                     final var contact = account.getContactStore().getContact(recipientId);
1593                     final var expirationTime = contact != null ? contact.getMessageExpirationTime() : 0;
1594                     messageBuilder.withExpiration(expirationTime);
1595                     message = messageBuilder.build();
1596                     results.add(sendMessage(recipientId, message));
1597                 }
1598                 return new Pair<>(timestamp, results);
1599             }
1600         } finally {
1601             if (message != null && message.isEndSession()) {
1602                 for (var recipient : recipientIds) {
1603                     handleEndSession(recipient);
1604                 }
1605             }
1606         }
1607     }
1608
1609     private Pair<Long, SendMessageResult> sendSelfMessage(
1610             SignalServiceDataMessage.Builder messageBuilder
1611     ) throws IOException {
1612         final var timestamp = System.currentTimeMillis();
1613         messageBuilder.withTimestamp(timestamp);
1614         getOrCreateMessagePipe();
1615         getOrCreateUnidentifiedMessagePipe();
1616         final var recipientId = account.getSelfRecipientId();
1617
1618         final var contact = account.getContactStore().getContact(recipientId);
1619         final var expirationTime = contact != null ? contact.getMessageExpirationTime() : 0;
1620         messageBuilder.withExpiration(expirationTime);
1621
1622         var message = messageBuilder.build();
1623         final var result = sendSelfMessage(message);
1624         return new Pair<>(timestamp, result);
1625     }
1626
1627     private SendMessageResult sendSelfMessage(SignalServiceDataMessage message) throws IOException {
1628         var messageSender = createMessageSender();
1629
1630         var recipientId = account.getSelfRecipientId();
1631
1632         final var unidentifiedAccess = unidentifiedAccessHelper.getAccessFor(recipientId);
1633         var recipient = resolveSignalServiceAddress(recipientId);
1634         var transcript = new SentTranscriptMessage(Optional.of(recipient),
1635                 message.getTimestamp(),
1636                 message,
1637                 message.getExpiresInSeconds(),
1638                 Map.of(recipient, unidentifiedAccess.isPresent()),
1639                 false);
1640         var syncMessage = SignalServiceSyncMessage.forSentTranscript(transcript);
1641
1642         try {
1643             var startTime = System.currentTimeMillis();
1644             messageSender.sendMessage(syncMessage, unidentifiedAccess);
1645             return SendMessageResult.success(recipient,
1646                     unidentifiedAccess.isPresent(),
1647                     false,
1648                     System.currentTimeMillis() - startTime);
1649         } catch (UntrustedIdentityException e) {
1650             return SendMessageResult.identityFailure(recipient, e.getIdentityKey());
1651         }
1652     }
1653
1654     private SendMessageResult sendMessage(
1655             RecipientId recipientId, SignalServiceDataMessage message
1656     ) throws IOException {
1657         var messageSender = createMessageSender();
1658
1659         final var address = resolveSignalServiceAddress(recipientId);
1660         try {
1661             try {
1662                 return messageSender.sendMessage(address, unidentifiedAccessHelper.getAccessFor(recipientId), message);
1663             } catch (UnregisteredUserException e) {
1664                 final var newRecipientId = refreshRegisteredUser(recipientId);
1665                 return messageSender.sendMessage(resolveSignalServiceAddress(newRecipientId),
1666                         unidentifiedAccessHelper.getAccessFor(newRecipientId),
1667                         message);
1668             }
1669         } catch (UntrustedIdentityException e) {
1670             return SendMessageResult.identityFailure(address, e.getIdentityKey());
1671         }
1672     }
1673
1674     private SendMessageResult sendNullMessage(RecipientId recipientId) throws IOException {
1675         var messageSender = createMessageSender();
1676
1677         final var address = resolveSignalServiceAddress(recipientId);
1678         try {
1679             try {
1680                 return messageSender.sendNullMessage(address, unidentifiedAccessHelper.getAccessFor(recipientId));
1681             } catch (UnregisteredUserException e) {
1682                 final var newRecipientId = refreshRegisteredUser(recipientId);
1683                 final var newAddress = resolveSignalServiceAddress(newRecipientId);
1684                 return messageSender.sendNullMessage(newAddress, unidentifiedAccessHelper.getAccessFor(newRecipientId));
1685             }
1686         } catch (UntrustedIdentityException e) {
1687             return SendMessageResult.identityFailure(address, e.getIdentityKey());
1688         }
1689     }
1690
1691     private SignalServiceContent decryptMessage(SignalServiceEnvelope envelope) throws InvalidMetadataMessageException, ProtocolInvalidMessageException, ProtocolDuplicateMessageException, ProtocolLegacyMessageException, ProtocolInvalidKeyIdException, InvalidMetadataVersionException, ProtocolInvalidVersionException, ProtocolNoSessionException, ProtocolInvalidKeyException, SelfSendException, UnsupportedDataMessageException, ProtocolUntrustedIdentityException {
1692         var cipher = new SignalServiceCipher(account.getSelfAddress(),
1693                 account.getSignalProtocolStore(),
1694                 sessionLock,
1695                 certificateValidator);
1696         return cipher.decrypt(envelope);
1697     }
1698
1699     private void handleEndSession(RecipientId recipientId) {
1700         account.getSessionStore().deleteAllSessions(recipientId);
1701     }
1702
1703     private List<HandleAction> handleSignalServiceDataMessage(
1704             SignalServiceDataMessage message,
1705             boolean isSync,
1706             SignalServiceAddress source,
1707             SignalServiceAddress destination,
1708             boolean ignoreAttachments
1709     ) {
1710         var actions = new ArrayList<HandleAction>();
1711         if (message.getGroupContext().isPresent()) {
1712             if (message.getGroupContext().get().getGroupV1().isPresent()) {
1713                 var groupInfo = message.getGroupContext().get().getGroupV1().get();
1714                 var groupId = GroupId.v1(groupInfo.getGroupId());
1715                 var group = getGroup(groupId);
1716                 if (group == null || group instanceof GroupInfoV1) {
1717                     var groupV1 = (GroupInfoV1) group;
1718                     switch (groupInfo.getType()) {
1719                         case UPDATE: {
1720                             if (groupV1 == null) {
1721                                 groupV1 = new GroupInfoV1(groupId);
1722                             }
1723
1724                             if (groupInfo.getAvatar().isPresent()) {
1725                                 var avatar = groupInfo.getAvatar().get();
1726                                 downloadGroupAvatar(avatar, groupV1.getGroupId());
1727                             }
1728
1729                             if (groupInfo.getName().isPresent()) {
1730                                 groupV1.name = groupInfo.getName().get();
1731                             }
1732
1733                             if (groupInfo.getMembers().isPresent()) {
1734                                 groupV1.addMembers(groupInfo.getMembers()
1735                                         .get()
1736                                         .stream()
1737                                         .map(this::resolveRecipient)
1738                                         .collect(Collectors.toSet()));
1739                             }
1740
1741                             account.getGroupStore().updateGroup(groupV1);
1742                             break;
1743                         }
1744                         case DELIVER:
1745                             if (groupV1 == null && !isSync) {
1746                                 actions.add(new SendGroupInfoRequestAction(source, groupId));
1747                             }
1748                             break;
1749                         case QUIT: {
1750                             if (groupV1 != null) {
1751                                 groupV1.removeMember(resolveRecipient(source));
1752                                 account.getGroupStore().updateGroup(groupV1);
1753                             }
1754                             break;
1755                         }
1756                         case REQUEST_INFO:
1757                             if (groupV1 != null && !isSync) {
1758                                 actions.add(new SendGroupInfoAction(source, groupV1.getGroupId()));
1759                             }
1760                             break;
1761                     }
1762                 } else {
1763                     // Received a group v1 message for a v2 group
1764                 }
1765             }
1766             if (message.getGroupContext().get().getGroupV2().isPresent()) {
1767                 final var groupContext = message.getGroupContext().get().getGroupV2().get();
1768                 final var groupMasterKey = groupContext.getMasterKey();
1769
1770                 getOrMigrateGroup(groupMasterKey,
1771                         groupContext.getRevision(),
1772                         groupContext.hasSignedGroupChange() ? groupContext.getSignedGroupChange() : null);
1773             }
1774         }
1775
1776         final var conversationPartnerAddress = isSync ? destination : source;
1777         if (conversationPartnerAddress != null && message.isEndSession()) {
1778             handleEndSession(resolveRecipient(conversationPartnerAddress));
1779         }
1780         if (message.isExpirationUpdate() || message.getBody().isPresent()) {
1781             if (message.getGroupContext().isPresent()) {
1782                 if (message.getGroupContext().get().getGroupV1().isPresent()) {
1783                     var groupInfo = message.getGroupContext().get().getGroupV1().get();
1784                     var group = account.getGroupStore().getOrCreateGroupV1(GroupId.v1(groupInfo.getGroupId()));
1785                     if (group != null) {
1786                         if (group.messageExpirationTime != message.getExpiresInSeconds()) {
1787                             group.messageExpirationTime = message.getExpiresInSeconds();
1788                             account.getGroupStore().updateGroup(group);
1789                         }
1790                     }
1791                 } else if (message.getGroupContext().get().getGroupV2().isPresent()) {
1792                     // disappearing message timer already stored in the DecryptedGroup
1793                 }
1794             } else if (conversationPartnerAddress != null) {
1795                 setExpirationTimer(resolveRecipient(conversationPartnerAddress), message.getExpiresInSeconds());
1796             }
1797         }
1798         if (!ignoreAttachments) {
1799             if (message.getAttachments().isPresent()) {
1800                 for (var attachment : message.getAttachments().get()) {
1801                     downloadAttachment(attachment);
1802                 }
1803             }
1804             if (message.getSharedContacts().isPresent()) {
1805                 for (var contact : message.getSharedContacts().get()) {
1806                     if (contact.getAvatar().isPresent()) {
1807                         downloadAttachment(contact.getAvatar().get().getAttachment());
1808                     }
1809                 }
1810             }
1811         }
1812         if (message.getProfileKey().isPresent() && message.getProfileKey().get().length == 32) {
1813             final ProfileKey profileKey;
1814             try {
1815                 profileKey = new ProfileKey(message.getProfileKey().get());
1816             } catch (InvalidInputException e) {
1817                 throw new AssertionError(e);
1818             }
1819             if (source.matches(account.getSelfAddress())) {
1820                 this.account.setProfileKey(profileKey);
1821             }
1822             this.account.getProfileStore().storeProfileKey(resolveRecipient(source), profileKey);
1823         }
1824         if (message.getPreviews().isPresent()) {
1825             final var previews = message.getPreviews().get();
1826             for (var preview : previews) {
1827                 if (preview.getImage().isPresent()) {
1828                     downloadAttachment(preview.getImage().get());
1829                 }
1830             }
1831         }
1832         if (message.getQuote().isPresent()) {
1833             final var quote = message.getQuote().get();
1834
1835             for (var quotedAttachment : quote.getAttachments()) {
1836                 final var thumbnail = quotedAttachment.getThumbnail();
1837                 if (thumbnail != null) {
1838                     downloadAttachment(thumbnail);
1839                 }
1840             }
1841         }
1842         if (message.getSticker().isPresent()) {
1843             final var messageSticker = message.getSticker().get();
1844             final var stickerPackId = StickerPackId.deserialize(messageSticker.getPackId());
1845             var sticker = account.getStickerStore().getSticker(stickerPackId);
1846             if (sticker == null) {
1847                 sticker = new Sticker(stickerPackId, messageSticker.getPackKey());
1848                 account.getStickerStore().updateSticker(sticker);
1849             }
1850         }
1851         return actions;
1852     }
1853
1854     private GroupInfoV2 getOrMigrateGroup(
1855             final GroupMasterKey groupMasterKey, final int revision, final byte[] signedGroupChange
1856     ) {
1857         final var groupSecretParams = GroupSecretParams.deriveFromMasterKey(groupMasterKey);
1858
1859         var groupId = GroupUtils.getGroupIdV2(groupSecretParams);
1860         var groupInfo = getGroup(groupId);
1861         final GroupInfoV2 groupInfoV2;
1862         if (groupInfo instanceof GroupInfoV1) {
1863             // Received a v2 group message for a v1 group, we need to locally migrate the group
1864             account.getGroupStore().deleteGroupV1(((GroupInfoV1) groupInfo).getGroupId());
1865             groupInfoV2 = new GroupInfoV2(groupId, groupMasterKey);
1866             logger.info("Locally migrated group {} to group v2, id: {}",
1867                     groupInfo.getGroupId().toBase64(),
1868                     groupInfoV2.getGroupId().toBase64());
1869         } else if (groupInfo instanceof GroupInfoV2) {
1870             groupInfoV2 = (GroupInfoV2) groupInfo;
1871         } else {
1872             groupInfoV2 = new GroupInfoV2(groupId, groupMasterKey);
1873         }
1874
1875         if (groupInfoV2.getGroup() == null || groupInfoV2.getGroup().getRevision() < revision) {
1876             DecryptedGroup group = null;
1877             if (signedGroupChange != null
1878                     && groupInfoV2.getGroup() != null
1879                     && groupInfoV2.getGroup().getRevision() + 1 == revision) {
1880                 group = groupV2Helper.getUpdatedDecryptedGroup(groupInfoV2.getGroup(),
1881                         signedGroupChange,
1882                         groupMasterKey);
1883             }
1884             if (group == null) {
1885                 group = groupV2Helper.getDecryptedGroup(groupSecretParams);
1886             }
1887             if (group != null) {
1888                 storeProfileKeysFromMembers(group);
1889                 final var avatar = group.getAvatar();
1890                 if (avatar != null && !avatar.isEmpty()) {
1891                     downloadGroupAvatar(groupId, groupSecretParams, avatar);
1892                 }
1893             }
1894             groupInfoV2.setGroup(group, this::resolveRecipient);
1895             account.getGroupStore().updateGroup(groupInfoV2);
1896         }
1897
1898         return groupInfoV2;
1899     }
1900
1901     private void storeProfileKeysFromMembers(final DecryptedGroup group) {
1902         for (var member : group.getMembersList()) {
1903             final var uuid = UuidUtil.parseOrThrow(member.getUuid().toByteArray());
1904             final var recipientId = account.getRecipientStore().resolveRecipient(uuid);
1905             try {
1906                 account.getProfileStore()
1907                         .storeProfileKey(recipientId, new ProfileKey(member.getProfileKey().toByteArray()));
1908             } catch (InvalidInputException ignored) {
1909             }
1910         }
1911     }
1912
1913     private void retryFailedReceivedMessages(ReceiveMessageHandler handler, boolean ignoreAttachments) {
1914         Set<HandleAction> queuedActions = new HashSet<>();
1915         for (var cachedMessage : account.getMessageCache().getCachedMessages()) {
1916             var actions = retryFailedReceivedMessage(handler, ignoreAttachments, cachedMessage);
1917             if (actions != null) {
1918                 queuedActions.addAll(actions);
1919             }
1920         }
1921         for (var action : queuedActions) {
1922             try {
1923                 action.execute(this);
1924             } catch (Throwable e) {
1925                 logger.warn("Message action failed.", e);
1926             }
1927         }
1928     }
1929
1930     private List<HandleAction> retryFailedReceivedMessage(
1931             final ReceiveMessageHandler handler, final boolean ignoreAttachments, final CachedMessage cachedMessage
1932     ) {
1933         var envelope = cachedMessage.loadEnvelope();
1934         if (envelope == null) {
1935             return null;
1936         }
1937         SignalServiceContent content = null;
1938         List<HandleAction> actions = null;
1939         if (!envelope.isReceipt()) {
1940             try {
1941                 content = decryptMessage(envelope);
1942             } catch (ProtocolUntrustedIdentityException e) {
1943                 if (!envelope.hasSource()) {
1944                     final var identifier = e.getSender();
1945                     final var recipientId = resolveRecipient(identifier);
1946                     try {
1947                         account.getMessageCache().replaceSender(cachedMessage, recipientId);
1948                     } catch (IOException ioException) {
1949                         logger.warn("Failed to move cached message to recipient folder: {}", ioException.getMessage());
1950                     }
1951                 }
1952                 return null;
1953             } catch (Exception er) {
1954                 // All other errors are not recoverable, so delete the cached message
1955                 cachedMessage.delete();
1956                 return null;
1957             }
1958             actions = handleMessage(envelope, content, ignoreAttachments);
1959         }
1960         handler.handleMessage(envelope, content, null);
1961         cachedMessage.delete();
1962         return actions;
1963     }
1964
1965     public void receiveMessages(
1966             long timeout,
1967             TimeUnit unit,
1968             boolean returnOnTimeout,
1969             boolean ignoreAttachments,
1970             ReceiveMessageHandler handler
1971     ) throws IOException {
1972         retryFailedReceivedMessages(handler, ignoreAttachments);
1973
1974         Set<HandleAction> queuedActions = null;
1975
1976         final var messagePipe = getOrCreateMessagePipe();
1977
1978         var hasCaughtUpWithOldMessages = false;
1979
1980         while (true) {
1981             SignalServiceEnvelope envelope;
1982             SignalServiceContent content = null;
1983             Exception exception = null;
1984             final CachedMessage[] cachedMessage = {null};
1985             try {
1986                 var result = messagePipe.readOrEmpty(timeout, unit, envelope1 -> {
1987                     final var recipientId = envelope1.hasSource()
1988                             ? resolveRecipient(envelope1.getSourceIdentifier())
1989                             : null;
1990                     // store message on disk, before acknowledging receipt to the server
1991                     cachedMessage[0] = account.getMessageCache().cacheMessage(envelope1, recipientId);
1992                 });
1993                 if (result.isPresent()) {
1994                     envelope = result.get();
1995                 } else {
1996                     // Received indicator that server queue is empty
1997                     hasCaughtUpWithOldMessages = true;
1998
1999                     if (queuedActions != null) {
2000                         for (var action : queuedActions) {
2001                             try {
2002                                 action.execute(this);
2003                             } catch (Throwable e) {
2004                                 logger.warn("Message action failed.", e);
2005                             }
2006                         }
2007                         queuedActions.clear();
2008                         queuedActions = null;
2009                     }
2010
2011                     // Continue to wait another timeout for new messages
2012                     continue;
2013                 }
2014             } catch (TimeoutException e) {
2015                 if (returnOnTimeout) return;
2016                 continue;
2017             }
2018
2019             if (envelope.hasSource()) {
2020                 // Store uuid if we don't have it already
2021                 // address/uuid in envelope is sent by server
2022                 resolveRecipientTrusted(envelope.getSourceAddress());
2023             }
2024             final var notAGroupMember = isNotAGroupMember(envelope, content);
2025             if (!envelope.isReceipt()) {
2026                 try {
2027                     content = decryptMessage(envelope);
2028                 } catch (Exception e) {
2029                     exception = e;
2030                 }
2031                 if (!envelope.hasSource() && content != null) {
2032                     // Store uuid if we don't have it already
2033                     // address/uuid is validated by unidentified sender certificate
2034                     resolveRecipientTrusted(content.getSender());
2035                 }
2036                 var actions = handleMessage(envelope, content, ignoreAttachments);
2037                 if (exception instanceof ProtocolInvalidMessageException) {
2038                     final var sender = resolveRecipient(((ProtocolInvalidMessageException) exception).getSender());
2039                     logger.debug("Received invalid message, queuing renew session action.");
2040                     actions.add(new RenewSessionAction(sender));
2041                 }
2042                 if (hasCaughtUpWithOldMessages) {
2043                     for (var action : actions) {
2044                         try {
2045                             action.execute(this);
2046                         } catch (Throwable e) {
2047                             logger.warn("Message action failed.", e);
2048                         }
2049                     }
2050                 } else {
2051                     if (queuedActions == null) {
2052                         queuedActions = new HashSet<>();
2053                     }
2054                     queuedActions.addAll(actions);
2055                 }
2056             }
2057             if (isMessageBlocked(envelope, content)) {
2058                 logger.info("Ignoring a message from blocked user/group: {}", envelope.getTimestamp());
2059             } else if (notAGroupMember) {
2060                 logger.info("Ignoring a message from a non group member: {}", envelope.getTimestamp());
2061             } else {
2062                 handler.handleMessage(envelope, content, exception);
2063             }
2064             if (cachedMessage[0] != null) {
2065                 if (exception instanceof ProtocolUntrustedIdentityException) {
2066                     final var identifier = ((ProtocolUntrustedIdentityException) exception).getSender();
2067                     final var recipientId = resolveRecipient(identifier);
2068                     queuedActions.add(new RetrieveProfileAction(recipientId));
2069                     if (!envelope.hasSource()) {
2070                         try {
2071                             cachedMessage[0] = account.getMessageCache().replaceSender(cachedMessage[0], recipientId);
2072                         } catch (IOException ioException) {
2073                             logger.warn("Failed to move cached message to recipient folder: {}",
2074                                     ioException.getMessage());
2075                         }
2076                     }
2077                 } else {
2078                     cachedMessage[0].delete();
2079                 }
2080             }
2081         }
2082     }
2083
2084     private boolean isMessageBlocked(
2085             SignalServiceEnvelope envelope, SignalServiceContent content
2086     ) {
2087         SignalServiceAddress source;
2088         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
2089             source = envelope.getSourceAddress();
2090         } else if (content != null) {
2091             source = content.getSender();
2092         } else {
2093             return false;
2094         }
2095         final var recipientId = resolveRecipient(source);
2096         if (isContactBlocked(recipientId)) {
2097             return true;
2098         }
2099
2100         if (content != null && content.getDataMessage().isPresent()) {
2101             var message = content.getDataMessage().get();
2102             if (message.getGroupContext().isPresent()) {
2103                 var groupId = GroupUtils.getGroupId(message.getGroupContext().get());
2104                 var group = getGroup(groupId);
2105                 if (group != null && group.isBlocked()) {
2106                     return true;
2107                 }
2108             }
2109         }
2110         return false;
2111     }
2112
2113     public boolean isContactBlocked(final String identifier) throws InvalidNumberException {
2114         final var recipientId = canonicalizeAndResolveRecipient(identifier);
2115         return isContactBlocked(recipientId);
2116     }
2117
2118     private boolean isContactBlocked(final RecipientId recipientId) {
2119         var sourceContact = account.getContactStore().getContact(recipientId);
2120         return sourceContact != null && sourceContact.isBlocked();
2121     }
2122
2123     private boolean isNotAGroupMember(
2124             SignalServiceEnvelope envelope, SignalServiceContent content
2125     ) {
2126         SignalServiceAddress source;
2127         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
2128             source = envelope.getSourceAddress();
2129         } else if (content != null) {
2130             source = content.getSender();
2131         } else {
2132             return false;
2133         }
2134
2135         if (content != null && content.getDataMessage().isPresent()) {
2136             var message = content.getDataMessage().get();
2137             if (message.getGroupContext().isPresent()) {
2138                 if (message.getGroupContext().get().getGroupV1().isPresent()) {
2139                     var groupInfo = message.getGroupContext().get().getGroupV1().get();
2140                     if (groupInfo.getType() == SignalServiceGroup.Type.QUIT) {
2141                         return false;
2142                     }
2143                 }
2144                 var groupId = GroupUtils.getGroupId(message.getGroupContext().get());
2145                 var group = getGroup(groupId);
2146                 if (group != null && !group.isMember(resolveRecipient(source))) {
2147                     return true;
2148                 }
2149             }
2150         }
2151         return false;
2152     }
2153
2154     private List<HandleAction> handleMessage(
2155             SignalServiceEnvelope envelope, SignalServiceContent content, boolean ignoreAttachments
2156     ) {
2157         var actions = new ArrayList<HandleAction>();
2158         if (content != null) {
2159             final SignalServiceAddress sender;
2160             if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
2161                 sender = envelope.getSourceAddress();
2162             } else {
2163                 sender = content.getSender();
2164             }
2165
2166             if (content.getDataMessage().isPresent()) {
2167                 var message = content.getDataMessage().get();
2168
2169                 if (content.isNeedsReceipt()) {
2170                     actions.add(new SendReceiptAction(sender, message.getTimestamp()));
2171                 }
2172
2173                 actions.addAll(handleSignalServiceDataMessage(message,
2174                         false,
2175                         sender,
2176                         account.getSelfAddress(),
2177                         ignoreAttachments));
2178             }
2179             if (content.getSyncMessage().isPresent()) {
2180                 account.setMultiDevice(true);
2181                 var syncMessage = content.getSyncMessage().get();
2182                 if (syncMessage.getSent().isPresent()) {
2183                     var message = syncMessage.getSent().get();
2184                     final var destination = message.getDestination().orNull();
2185                     actions.addAll(handleSignalServiceDataMessage(message.getMessage(),
2186                             true,
2187                             sender,
2188                             destination,
2189                             ignoreAttachments));
2190                 }
2191                 if (syncMessage.getRequest().isPresent() && account.isMasterDevice()) {
2192                     var rm = syncMessage.getRequest().get();
2193                     if (rm.isContactsRequest()) {
2194                         actions.add(SendSyncContactsAction.create());
2195                     }
2196                     if (rm.isGroupsRequest()) {
2197                         actions.add(SendSyncGroupsAction.create());
2198                     }
2199                     if (rm.isBlockedListRequest()) {
2200                         actions.add(SendSyncBlockedListAction.create());
2201                     }
2202                     // TODO Handle rm.isConfigurationRequest(); rm.isKeysRequest();
2203                 }
2204                 if (syncMessage.getGroups().isPresent()) {
2205                     File tmpFile = null;
2206                     try {
2207                         tmpFile = IOUtils.createTempFile();
2208                         final var groupsMessage = syncMessage.getGroups().get();
2209                         try (var attachmentAsStream = retrieveAttachmentAsStream(groupsMessage.asPointer(), tmpFile)) {
2210                             var s = new DeviceGroupsInputStream(attachmentAsStream);
2211                             DeviceGroup g;
2212                             while ((g = s.read()) != null) {
2213                                 var syncGroup = account.getGroupStore().getOrCreateGroupV1(GroupId.v1(g.getId()));
2214                                 if (syncGroup != null) {
2215                                     if (g.getName().isPresent()) {
2216                                         syncGroup.name = g.getName().get();
2217                                     }
2218                                     syncGroup.addMembers(g.getMembers()
2219                                             .stream()
2220                                             .map(this::resolveRecipient)
2221                                             .collect(Collectors.toSet()));
2222                                     if (!g.isActive()) {
2223                                         syncGroup.removeMember(account.getSelfRecipientId());
2224                                     } else {
2225                                         // Add ourself to the member set as it's marked as active
2226                                         syncGroup.addMembers(List.of(account.getSelfRecipientId()));
2227                                     }
2228                                     syncGroup.blocked = g.isBlocked();
2229                                     if (g.getColor().isPresent()) {
2230                                         syncGroup.color = g.getColor().get();
2231                                     }
2232
2233                                     if (g.getAvatar().isPresent()) {
2234                                         downloadGroupAvatar(g.getAvatar().get(), syncGroup.getGroupId());
2235                                     }
2236                                     syncGroup.archived = g.isArchived();
2237                                     account.getGroupStore().updateGroup(syncGroup);
2238                                 }
2239                             }
2240                         }
2241                     } catch (Exception e) {
2242                         logger.warn("Failed to handle received sync groups “{}”, ignoring: {}",
2243                                 tmpFile,
2244                                 e.getMessage());
2245                     } finally {
2246                         if (tmpFile != null) {
2247                             try {
2248                                 Files.delete(tmpFile.toPath());
2249                             } catch (IOException e) {
2250                                 logger.warn("Failed to delete received groups temp file “{}”, ignoring: {}",
2251                                         tmpFile,
2252                                         e.getMessage());
2253                             }
2254                         }
2255                     }
2256                 }
2257                 if (syncMessage.getBlockedList().isPresent()) {
2258                     final var blockedListMessage = syncMessage.getBlockedList().get();
2259                     for (var address : blockedListMessage.getAddresses()) {
2260                         setContactBlocked(resolveRecipient(address), true);
2261                     }
2262                     for (var groupId : blockedListMessage.getGroupIds()
2263                             .stream()
2264                             .map(GroupId::unknownVersion)
2265                             .collect(Collectors.toSet())) {
2266                         try {
2267                             setGroupBlocked(groupId, true);
2268                         } catch (GroupNotFoundException e) {
2269                             logger.warn("BlockedListMessage contained groupID that was not found in GroupStore: {}",
2270                                     groupId.toBase64());
2271                         }
2272                     }
2273                 }
2274                 if (syncMessage.getContacts().isPresent()) {
2275                     File tmpFile = null;
2276                     try {
2277                         tmpFile = IOUtils.createTempFile();
2278                         final var contactsMessage = syncMessage.getContacts().get();
2279                         try (var attachmentAsStream = retrieveAttachmentAsStream(contactsMessage.getContactsStream()
2280                                 .asPointer(), tmpFile)) {
2281                             var s = new DeviceContactsInputStream(attachmentAsStream);
2282                             DeviceContact c;
2283                             while ((c = s.read()) != null) {
2284                                 if (c.getAddress().matches(account.getSelfAddress()) && c.getProfileKey().isPresent()) {
2285                                     account.setProfileKey(c.getProfileKey().get());
2286                                 }
2287                                 final var recipientId = resolveRecipientTrusted(c.getAddress());
2288                                 var contact = account.getContactStore().getContact(recipientId);
2289                                 final var builder = contact == null
2290                                         ? Contact.newBuilder()
2291                                         : Contact.newBuilder(contact);
2292                                 if (c.getName().isPresent()) {
2293                                     builder.withName(c.getName().get());
2294                                 }
2295                                 if (c.getColor().isPresent()) {
2296                                     builder.withColor(c.getColor().get());
2297                                 }
2298                                 if (c.getProfileKey().isPresent()) {
2299                                     account.getProfileStore().storeProfileKey(recipientId, c.getProfileKey().get());
2300                                 }
2301                                 if (c.getVerified().isPresent()) {
2302                                     final var verifiedMessage = c.getVerified().get();
2303                                     account.getIdentityKeyStore()
2304                                             .setIdentityTrustLevel(resolveRecipientTrusted(verifiedMessage.getDestination()),
2305                                                     verifiedMessage.getIdentityKey(),
2306                                                     TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
2307                                 }
2308                                 if (c.getExpirationTimer().isPresent()) {
2309                                     builder.withMessageExpirationTime(c.getExpirationTimer().get());
2310                                 }
2311                                 builder.withBlocked(c.isBlocked());
2312                                 builder.withArchived(c.isArchived());
2313                                 account.getContactStore().storeContact(recipientId, builder.build());
2314
2315                                 if (c.getAvatar().isPresent()) {
2316                                     downloadContactAvatar(c.getAvatar().get(), c.getAddress());
2317                                 }
2318                             }
2319                         }
2320                     } catch (Exception e) {
2321                         logger.warn("Failed to handle received sync contacts “{}”, ignoring: {}",
2322                                 tmpFile,
2323                                 e.getMessage());
2324                     } finally {
2325                         if (tmpFile != null) {
2326                             try {
2327                                 Files.delete(tmpFile.toPath());
2328                             } catch (IOException e) {
2329                                 logger.warn("Failed to delete received contacts temp file “{}”, ignoring: {}",
2330                                         tmpFile,
2331                                         e.getMessage());
2332                             }
2333                         }
2334                     }
2335                 }
2336                 if (syncMessage.getVerified().isPresent()) {
2337                     final var verifiedMessage = syncMessage.getVerified().get();
2338                     account.getIdentityKeyStore()
2339                             .setIdentityTrustLevel(resolveRecipientTrusted(verifiedMessage.getDestination()),
2340                                     verifiedMessage.getIdentityKey(),
2341                                     TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
2342                 }
2343                 if (syncMessage.getStickerPackOperations().isPresent()) {
2344                     final var stickerPackOperationMessages = syncMessage.getStickerPackOperations().get();
2345                     for (var m : stickerPackOperationMessages) {
2346                         if (!m.getPackId().isPresent()) {
2347                             continue;
2348                         }
2349                         final var stickerPackId = StickerPackId.deserialize(m.getPackId().get());
2350                         var sticker = account.getStickerStore().getSticker(stickerPackId);
2351                         if (sticker == null) {
2352                             if (!m.getPackKey().isPresent()) {
2353                                 continue;
2354                             }
2355                             sticker = new Sticker(stickerPackId, m.getPackKey().get());
2356                         }
2357                         sticker.setInstalled(!m.getType().isPresent()
2358                                 || m.getType().get() == StickerPackOperationMessage.Type.INSTALL);
2359                         account.getStickerStore().updateSticker(sticker);
2360                     }
2361                 }
2362                 if (syncMessage.getFetchType().isPresent()) {
2363                     switch (syncMessage.getFetchType().get()) {
2364                         case LOCAL_PROFILE:
2365                             getRecipientProfile(account.getSelfRecipientId(), true);
2366                         case STORAGE_MANIFEST:
2367                             // TODO
2368                     }
2369                 }
2370                 if (syncMessage.getKeys().isPresent()) {
2371                     final var keysMessage = syncMessage.getKeys().get();
2372                     if (keysMessage.getStorageService().isPresent()) {
2373                         final var storageKey = keysMessage.getStorageService().get();
2374                         account.setStorageKey(storageKey);
2375                     }
2376                 }
2377                 if (syncMessage.getConfiguration().isPresent()) {
2378                     // TODO
2379                 }
2380             }
2381         }
2382         return actions;
2383     }
2384
2385     private void downloadContactAvatar(SignalServiceAttachment avatar, SignalServiceAddress address) {
2386         try {
2387             avatarStore.storeContactAvatar(address, outputStream -> retrieveAttachment(avatar, outputStream));
2388         } catch (IOException e) {
2389             logger.warn("Failed to download avatar for contact {}, ignoring: {}", address, e.getMessage());
2390         }
2391     }
2392
2393     private void downloadGroupAvatar(SignalServiceAttachment avatar, GroupId groupId) {
2394         try {
2395             avatarStore.storeGroupAvatar(groupId, outputStream -> retrieveAttachment(avatar, outputStream));
2396         } catch (IOException e) {
2397             logger.warn("Failed to download avatar for group {}, ignoring: {}", groupId.toBase64(), e.getMessage());
2398         }
2399     }
2400
2401     private void downloadGroupAvatar(GroupId groupId, GroupSecretParams groupSecretParams, String cdnKey) {
2402         try {
2403             avatarStore.storeGroupAvatar(groupId,
2404                     outputStream -> retrieveGroupV2Avatar(groupSecretParams, cdnKey, outputStream));
2405         } catch (IOException e) {
2406             logger.warn("Failed to download avatar for group {}, ignoring: {}", groupId.toBase64(), e.getMessage());
2407         }
2408     }
2409
2410     private void downloadProfileAvatar(
2411             SignalServiceAddress address, String avatarPath, ProfileKey profileKey
2412     ) {
2413         try {
2414             avatarStore.storeProfileAvatar(address,
2415                     outputStream -> retrieveProfileAvatar(avatarPath, profileKey, outputStream));
2416         } catch (Throwable e) {
2417             logger.warn("Failed to download profile avatar, ignoring: {}", e.getMessage());
2418         }
2419     }
2420
2421     public File getAttachmentFile(SignalServiceAttachmentRemoteId attachmentId) {
2422         return attachmentStore.getAttachmentFile(attachmentId);
2423     }
2424
2425     private void downloadAttachment(final SignalServiceAttachment attachment) {
2426         if (!attachment.isPointer()) {
2427             logger.warn("Invalid state, can't store an attachment stream.");
2428         }
2429
2430         var pointer = attachment.asPointer();
2431         if (pointer.getPreview().isPresent()) {
2432             final var preview = pointer.getPreview().get();
2433             try {
2434                 attachmentStore.storeAttachmentPreview(pointer.getRemoteId(),
2435                         outputStream -> outputStream.write(preview, 0, preview.length));
2436             } catch (IOException e) {
2437                 logger.warn("Failed to download attachment preview, ignoring: {}", e.getMessage());
2438             }
2439         }
2440
2441         try {
2442             attachmentStore.storeAttachment(pointer.getRemoteId(),
2443                     outputStream -> retrieveAttachmentPointer(pointer, outputStream));
2444         } catch (IOException e) {
2445             logger.warn("Failed to download attachment ({}), ignoring: {}", pointer.getRemoteId(), e.getMessage());
2446         }
2447     }
2448
2449     private void retrieveGroupV2Avatar(
2450             GroupSecretParams groupSecretParams, String cdnKey, OutputStream outputStream
2451     ) throws IOException {
2452         var groupOperations = groupsV2Operations.forGroup(groupSecretParams);
2453
2454         var tmpFile = IOUtils.createTempFile();
2455         try (InputStream input = messageReceiver.retrieveGroupsV2ProfileAvatar(cdnKey,
2456                 tmpFile,
2457                 ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
2458             var encryptedData = IOUtils.readFully(input);
2459
2460             var decryptedData = groupOperations.decryptAvatar(encryptedData);
2461             outputStream.write(decryptedData);
2462         } finally {
2463             try {
2464                 Files.delete(tmpFile.toPath());
2465             } catch (IOException e) {
2466                 logger.warn("Failed to delete received group avatar temp file “{}”, ignoring: {}",
2467                         tmpFile,
2468                         e.getMessage());
2469             }
2470         }
2471     }
2472
2473     private void retrieveProfileAvatar(
2474             String avatarPath, ProfileKey profileKey, OutputStream outputStream
2475     ) throws IOException {
2476         var tmpFile = IOUtils.createTempFile();
2477         try (var input = messageReceiver.retrieveProfileAvatar(avatarPath,
2478                 tmpFile,
2479                 profileKey,
2480                 ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
2481             // Use larger buffer size to prevent AssertionError: Need: 12272 but only have: 8192 ...
2482             IOUtils.copyStream(input, outputStream, (int) ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE);
2483         } finally {
2484             try {
2485                 Files.delete(tmpFile.toPath());
2486             } catch (IOException e) {
2487                 logger.warn("Failed to delete received profile avatar temp file “{}”, ignoring: {}",
2488                         tmpFile,
2489                         e.getMessage());
2490             }
2491         }
2492     }
2493
2494     private void retrieveAttachment(
2495             final SignalServiceAttachment attachment, final OutputStream outputStream
2496     ) throws IOException {
2497         if (attachment.isPointer()) {
2498             var pointer = attachment.asPointer();
2499             retrieveAttachmentPointer(pointer, outputStream);
2500         } else {
2501             var stream = attachment.asStream();
2502             IOUtils.copyStream(stream.getInputStream(), outputStream);
2503         }
2504     }
2505
2506     private void retrieveAttachmentPointer(
2507             SignalServiceAttachmentPointer pointer, OutputStream outputStream
2508     ) throws IOException {
2509         var tmpFile = IOUtils.createTempFile();
2510         try (var input = retrieveAttachmentAsStream(pointer, tmpFile)) {
2511             IOUtils.copyStream(input, outputStream);
2512         } catch (MissingConfigurationException | InvalidMessageException e) {
2513             throw new IOException(e);
2514         } finally {
2515             try {
2516                 Files.delete(tmpFile.toPath());
2517             } catch (IOException e) {
2518                 logger.warn("Failed to delete received attachment temp file “{}”, ignoring: {}",
2519                         tmpFile,
2520                         e.getMessage());
2521             }
2522         }
2523     }
2524
2525     private InputStream retrieveAttachmentAsStream(
2526             SignalServiceAttachmentPointer pointer, File tmpFile
2527     ) throws IOException, InvalidMessageException, MissingConfigurationException {
2528         return messageReceiver.retrieveAttachment(pointer, tmpFile, ServiceConfig.MAX_ATTACHMENT_SIZE);
2529     }
2530
2531     void sendGroups() throws IOException, UntrustedIdentityException {
2532         var groupsFile = IOUtils.createTempFile();
2533
2534         try {
2535             try (OutputStream fos = new FileOutputStream(groupsFile)) {
2536                 var out = new DeviceGroupsOutputStream(fos);
2537                 for (var record : getGroups()) {
2538                     if (record instanceof GroupInfoV1) {
2539                         var groupInfo = (GroupInfoV1) record;
2540                         out.write(new DeviceGroup(groupInfo.getGroupId().serialize(),
2541                                 Optional.fromNullable(groupInfo.name),
2542                                 groupInfo.getMembers()
2543                                         .stream()
2544                                         .map(this::resolveSignalServiceAddress)
2545                                         .collect(Collectors.toList()),
2546                                 createGroupAvatarAttachment(groupInfo.getGroupId()),
2547                                 groupInfo.isMember(account.getSelfRecipientId()),
2548                                 Optional.of(groupInfo.messageExpirationTime),
2549                                 Optional.fromNullable(groupInfo.color),
2550                                 groupInfo.blocked,
2551                                 Optional.absent(),
2552                                 groupInfo.archived));
2553                     }
2554                 }
2555             }
2556
2557             if (groupsFile.exists() && groupsFile.length() > 0) {
2558                 try (var groupsFileStream = new FileInputStream(groupsFile)) {
2559                     var attachmentStream = SignalServiceAttachment.newStreamBuilder()
2560                             .withStream(groupsFileStream)
2561                             .withContentType("application/octet-stream")
2562                             .withLength(groupsFile.length())
2563                             .build();
2564
2565                     sendSyncMessage(SignalServiceSyncMessage.forGroups(attachmentStream));
2566                 }
2567             }
2568         } finally {
2569             try {
2570                 Files.delete(groupsFile.toPath());
2571             } catch (IOException e) {
2572                 logger.warn("Failed to delete groups temp file “{}”, ignoring: {}", groupsFile, e.getMessage());
2573             }
2574         }
2575     }
2576
2577     public void sendContacts() throws IOException, UntrustedIdentityException {
2578         var contactsFile = IOUtils.createTempFile();
2579
2580         try {
2581             try (OutputStream fos = new FileOutputStream(contactsFile)) {
2582                 var out = new DeviceContactsOutputStream(fos);
2583                 for (var contactPair : account.getContactStore().getContacts()) {
2584                     final var recipientId = contactPair.first();
2585                     final var contact = contactPair.second();
2586                     final var address = resolveSignalServiceAddress(recipientId);
2587
2588                     var currentIdentity = account.getIdentityKeyStore().getIdentity(recipientId);
2589                     VerifiedMessage verifiedMessage = null;
2590                     if (currentIdentity != null) {
2591                         verifiedMessage = new VerifiedMessage(address,
2592                                 currentIdentity.getIdentityKey(),
2593                                 currentIdentity.getTrustLevel().toVerifiedState(),
2594                                 currentIdentity.getDateAdded().getTime());
2595                     }
2596
2597                     var profileKey = account.getProfileStore().getProfileKey(recipientId);
2598                     out.write(new DeviceContact(address,
2599                             Optional.fromNullable(contact.getName()),
2600                             createContactAvatarAttachment(address),
2601                             Optional.fromNullable(contact.getColor()),
2602                             Optional.fromNullable(verifiedMessage),
2603                             Optional.fromNullable(profileKey),
2604                             contact.isBlocked(),
2605                             Optional.of(contact.getMessageExpirationTime()),
2606                             Optional.absent(),
2607                             contact.isArchived()));
2608                 }
2609
2610                 if (account.getProfileKey() != null) {
2611                     // Send our own profile key as well
2612                     out.write(new DeviceContact(account.getSelfAddress(),
2613                             Optional.absent(),
2614                             Optional.absent(),
2615                             Optional.absent(),
2616                             Optional.absent(),
2617                             Optional.of(account.getProfileKey()),
2618                             false,
2619                             Optional.absent(),
2620                             Optional.absent(),
2621                             false));
2622                 }
2623             }
2624
2625             if (contactsFile.exists() && contactsFile.length() > 0) {
2626                 try (var contactsFileStream = new FileInputStream(contactsFile)) {
2627                     var attachmentStream = SignalServiceAttachment.newStreamBuilder()
2628                             .withStream(contactsFileStream)
2629                             .withContentType("application/octet-stream")
2630                             .withLength(contactsFile.length())
2631                             .build();
2632
2633                     sendSyncMessage(SignalServiceSyncMessage.forContacts(new ContactsMessage(attachmentStream, true)));
2634                 }
2635             }
2636         } finally {
2637             try {
2638                 Files.delete(contactsFile.toPath());
2639             } catch (IOException e) {
2640                 logger.warn("Failed to delete contacts temp file “{}”, ignoring: {}", contactsFile, e.getMessage());
2641             }
2642         }
2643     }
2644
2645     void sendBlockedList() throws IOException, UntrustedIdentityException {
2646         var addresses = new ArrayList<SignalServiceAddress>();
2647         for (var record : account.getContactStore().getContacts()) {
2648             if (record.second().isBlocked()) {
2649                 addresses.add(resolveSignalServiceAddress(record.first()));
2650             }
2651         }
2652         var groupIds = new ArrayList<byte[]>();
2653         for (var record : getGroups()) {
2654             if (record.isBlocked()) {
2655                 groupIds.add(record.getGroupId().serialize());
2656             }
2657         }
2658         sendSyncMessage(SignalServiceSyncMessage.forBlocked(new BlockedListMessage(addresses, groupIds)));
2659     }
2660
2661     private void sendVerifiedMessage(
2662             SignalServiceAddress destination, IdentityKey identityKey, TrustLevel trustLevel
2663     ) throws IOException, UntrustedIdentityException {
2664         var verifiedMessage = new VerifiedMessage(destination,
2665                 identityKey,
2666                 trustLevel.toVerifiedState(),
2667                 System.currentTimeMillis());
2668         sendSyncMessage(SignalServiceSyncMessage.forVerified(verifiedMessage));
2669     }
2670
2671     public List<Pair<RecipientId, Contact>> getContacts() {
2672         return account.getContactStore().getContacts();
2673     }
2674
2675     public String getContactOrProfileName(String number) throws InvalidNumberException {
2676         final var recipientId = canonicalizeAndResolveRecipient(number);
2677         final var recipient = account.getRecipientStore().getRecipient(recipientId);
2678         if (recipient == null) {
2679             return null;
2680         }
2681
2682         if (recipient.getContact() != null && !Util.isEmpty(recipient.getContact().getName())) {
2683             return recipient.getContact().getName();
2684         }
2685
2686         if (recipient.getProfile() != null && recipient.getProfile() != null) {
2687             return recipient.getProfile().getDisplayName();
2688         }
2689
2690         return null;
2691     }
2692
2693     public GroupInfo getGroup(GroupId groupId) {
2694         final var group = account.getGroupStore().getGroup(groupId);
2695         if (group instanceof GroupInfoV2 && ((GroupInfoV2) group).getGroup() == null) {
2696             final var groupSecretParams = GroupSecretParams.deriveFromMasterKey(((GroupInfoV2) group).getMasterKey());
2697             ((GroupInfoV2) group).setGroup(groupV2Helper.getDecryptedGroup(groupSecretParams), this::resolveRecipient);
2698             account.getGroupStore().updateGroup(group);
2699         }
2700         return group;
2701     }
2702
2703     public List<IdentityInfo> getIdentities() {
2704         return account.getIdentityKeyStore().getIdentities();
2705     }
2706
2707     public List<IdentityInfo> getIdentities(String number) throws InvalidNumberException {
2708         final var identity = account.getIdentityKeyStore().getIdentity(canonicalizeAndResolveRecipient(number));
2709         return identity == null ? List.of() : List.of(identity);
2710     }
2711
2712     /**
2713      * Trust this the identity with this fingerprint
2714      *
2715      * @param name        username of the identity
2716      * @param fingerprint Fingerprint
2717      */
2718     public boolean trustIdentityVerified(String name, byte[] fingerprint) throws InvalidNumberException {
2719         var recipientId = canonicalizeAndResolveRecipient(name);
2720         return trustIdentity(recipientId,
2721                 identityKey -> Arrays.equals(identityKey.serialize(), fingerprint),
2722                 TrustLevel.TRUSTED_VERIFIED);
2723     }
2724
2725     /**
2726      * Trust this the identity with this safety number
2727      *
2728      * @param name         username of the identity
2729      * @param safetyNumber Safety number
2730      */
2731     public boolean trustIdentityVerifiedSafetyNumber(String name, String safetyNumber) throws InvalidNumberException {
2732         var recipientId = canonicalizeAndResolveRecipient(name);
2733         var address = account.getRecipientStore().resolveServiceAddress(recipientId);
2734         return trustIdentity(recipientId,
2735                 identityKey -> safetyNumber.equals(computeSafetyNumber(address, identityKey)),
2736                 TrustLevel.TRUSTED_VERIFIED);
2737     }
2738
2739     /**
2740      * Trust all keys of this identity without verification
2741      *
2742      * @param name username of the identity
2743      */
2744     public boolean trustIdentityAllKeys(String name) throws InvalidNumberException {
2745         var recipientId = canonicalizeAndResolveRecipient(name);
2746         return trustIdentity(recipientId, identityKey -> true, TrustLevel.TRUSTED_UNVERIFIED);
2747     }
2748
2749     private boolean trustIdentity(
2750             RecipientId recipientId, Function<IdentityKey, Boolean> verifier, TrustLevel trustLevel
2751     ) {
2752         var identity = account.getIdentityKeyStore().getIdentity(recipientId);
2753         if (identity == null) {
2754             return false;
2755         }
2756
2757         if (!verifier.apply(identity.getIdentityKey())) {
2758             return false;
2759         }
2760
2761         account.getIdentityKeyStore().setIdentityTrustLevel(recipientId, identity.getIdentityKey(), trustLevel);
2762         try {
2763             var address = account.getRecipientStore().resolveServiceAddress(recipientId);
2764             sendVerifiedMessage(address, identity.getIdentityKey(), trustLevel);
2765         } catch (IOException | UntrustedIdentityException e) {
2766             logger.warn("Failed to send verification sync message: {}", e.getMessage());
2767         }
2768
2769         return true;
2770     }
2771
2772     public String computeSafetyNumber(
2773             SignalServiceAddress theirAddress, IdentityKey theirIdentityKey
2774     ) {
2775         return Utils.computeSafetyNumber(ServiceConfig.capabilities.isUuid(),
2776                 account.getSelfAddress(),
2777                 getIdentityKeyPair().getPublicKey(),
2778                 theirAddress,
2779                 theirIdentityKey);
2780     }
2781
2782     @Deprecated
2783     public SignalServiceAddress resolveSignalServiceAddress(String identifier) {
2784         var address = Utils.getSignalServiceAddressFromIdentifier(identifier);
2785
2786         return resolveSignalServiceAddress(address);
2787     }
2788
2789     @Deprecated
2790     public SignalServiceAddress resolveSignalServiceAddress(SignalServiceAddress address) {
2791         if (address.matches(account.getSelfAddress())) {
2792             return account.getSelfAddress();
2793         }
2794
2795         return account.getRecipientStore().resolveServiceAddress(address);
2796     }
2797
2798     public SignalServiceAddress resolveSignalServiceAddress(RecipientId recipientId) {
2799         return account.getRecipientStore().resolveServiceAddress(recipientId);
2800     }
2801
2802     public RecipientId canonicalizeAndResolveRecipient(String identifier) throws InvalidNumberException {
2803         var canonicalizedNumber = UuidUtil.isUuid(identifier)
2804                 ? identifier
2805                 : PhoneNumberFormatter.formatNumber(identifier, account.getUsername());
2806
2807         return resolveRecipient(canonicalizedNumber);
2808     }
2809
2810     private RecipientId resolveRecipient(final String identifier) {
2811         var address = Utils.getSignalServiceAddressFromIdentifier(identifier);
2812
2813         return resolveRecipient(address);
2814     }
2815
2816     public RecipientId resolveRecipient(SignalServiceAddress address) {
2817         return account.getRecipientStore().resolveRecipient(address);
2818     }
2819
2820     private RecipientId resolveRecipientTrusted(SignalServiceAddress address) {
2821         return account.getRecipientStore().resolveRecipientTrusted(address);
2822     }
2823
2824     @Override
2825     public void close() throws IOException {
2826         close(true);
2827     }
2828
2829     void close(boolean closeAccount) throws IOException {
2830         executor.shutdown();
2831
2832         if (messagePipe != null) {
2833             messagePipe.shutdown();
2834             messagePipe = null;
2835         }
2836
2837         if (unidentifiedMessagePipe != null) {
2838             unidentifiedMessagePipe.shutdown();
2839             unidentifiedMessagePipe = null;
2840         }
2841
2842         if (closeAccount && account != null) {
2843             account.close();
2844         }
2845         account = null;
2846     }
2847
2848     public interface ReceiveMessageHandler {
2849
2850         void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent decryptedContent, Throwable e);
2851     }
2852 }