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

   1 /*
   2   Copyright (C) 2015-2021 AsamK and contributors
   3
   4   This program is free software: you can redistribute it and/or modify
   5   it under the terms of the GNU General Public License as published by
   6   the Free Software Foundation, either version 3 of the License, or
   7   (at your option) any later version.
   8
   9   This program is distributed in the hope that it will be useful,
  10   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12   GNU General Public License for more details.
  13
  14   You should have received a copy of the GNU General Public License
  15   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17 package org.asamk.signal.manager;
  18
  19 import org.asamk.signal.manager.api.Device;
  20 import org.asamk.signal.manager.api.Message;
  21 import org.asamk.signal.manager.api.TypingAction;
  22 import org.asamk.signal.manager.config.ServiceConfig;
  23 import org.asamk.signal.manager.config.ServiceEnvironment;
  24 import org.asamk.signal.manager.config.ServiceEnvironmentConfig;
  25 import org.asamk.signal.manager.groups.GroupId;
  26 import org.asamk.signal.manager.groups.GroupIdV1;
  27 import org.asamk.signal.manager.groups.GroupInviteLinkUrl;
  28 import org.asamk.signal.manager.groups.GroupLinkState;
  29 import org.asamk.signal.manager.groups.GroupNotFoundException;
  30 import org.asamk.signal.manager.groups.GroupPermission;
  31 import org.asamk.signal.manager.groups.GroupUtils;
  32 import org.asamk.signal.manager.groups.LastGroupAdminException;
  33 import org.asamk.signal.manager.groups.NotAGroupMemberException;
  34 import org.asamk.signal.manager.helper.GroupV2Helper;
  35 import org.asamk.signal.manager.helper.PinHelper;
  36 import org.asamk.signal.manager.helper.ProfileHelper;
  37 import org.asamk.signal.manager.helper.SendHelper;
  38 import org.asamk.signal.manager.helper.UnidentifiedAccessHelper;
  39 import org.asamk.signal.manager.jobs.Context;
  40 import org.asamk.signal.manager.jobs.Job;
  41 import org.asamk.signal.manager.jobs.RetrieveStickerPackJob;
  42 import org.asamk.signal.manager.storage.SignalAccount;
  43 import org.asamk.signal.manager.storage.groups.GroupInfo;
  44 import org.asamk.signal.manager.storage.groups.GroupInfoV1;
  45 import org.asamk.signal.manager.storage.groups.GroupInfoV2;
  46 import org.asamk.signal.manager.storage.identities.IdentityInfo;
  47 import org.asamk.signal.manager.storage.identities.TrustNewIdentity;
  48 import org.asamk.signal.manager.storage.messageCache.CachedMessage;
  49 import org.asamk.signal.manager.storage.recipients.Contact;
  50 import org.asamk.signal.manager.storage.recipients.Profile;
  51 import org.asamk.signal.manager.storage.recipients.RecipientId;
  52 import org.asamk.signal.manager.storage.stickers.Sticker;
  53 import org.asamk.signal.manager.storage.stickers.StickerPackId;
  54 import org.asamk.signal.manager.util.AttachmentUtils;
  55 import org.asamk.signal.manager.util.IOUtils;
  56 import org.asamk.signal.manager.util.KeyUtils;
  57 import org.asamk.signal.manager.util.ProfileUtils;
  58 import org.asamk.signal.manager.util.StickerUtils;
  59 import org.asamk.signal.manager.util.Utils;
  60 import org.signal.libsignal.metadata.InvalidMetadataMessageException;
  61 import org.signal.libsignal.metadata.InvalidMetadataVersionException;
  62 import org.signal.libsignal.metadata.ProtocolDuplicateMessageException;
  63 import org.signal.libsignal.metadata.ProtocolInvalidKeyException;
  64 import org.signal.libsignal.metadata.ProtocolInvalidKeyIdException;
  65 import org.signal.libsignal.metadata.ProtocolInvalidMessageException;
  66 import org.signal.libsignal.metadata.ProtocolInvalidVersionException;
  67 import org.signal.libsignal.metadata.ProtocolLegacyMessageException;
  68 import org.signal.libsignal.metadata.ProtocolNoSessionException;
  69 import org.signal.libsignal.metadata.ProtocolUntrustedIdentityException;
  70 import org.signal.libsignal.metadata.SelfSendException;
  71 import org.signal.storageservice.protos.groups.GroupChange;
  72 import org.signal.storageservice.protos.groups.local.DecryptedGroup;
  73 import org.signal.zkgroup.InvalidInputException;
  74 import org.signal.zkgroup.VerificationFailedException;
  75 import org.signal.zkgroup.groups.GroupMasterKey;
  76 import org.signal.zkgroup.groups.GroupSecretParams;
  77 import org.signal.zkgroup.profiles.ProfileKey;
  78 import org.signal.zkgroup.profiles.ProfileKeyCredential;
  79 import org.slf4j.Logger;
  80 import org.slf4j.LoggerFactory;
  81 import org.whispersystems.libsignal.IdentityKey;
  82 import org.whispersystems.libsignal.IdentityKeyPair;
  83 import org.whispersystems.libsignal.InvalidKeyException;
  84 import org.whispersystems.libsignal.InvalidMessageException;
  85 import org.whispersystems.libsignal.ecc.ECPublicKey;
  86 import org.whispersystems.libsignal.fingerprint.Fingerprint;
  87 import org.whispersystems.libsignal.fingerprint.FingerprintParsingException;
  88 import org.whispersystems.libsignal.fingerprint.FingerprintVersionMismatchException;
  89 import org.whispersystems.libsignal.state.PreKeyRecord;
  90 import org.whispersystems.libsignal.state.SignedPreKeyRecord;
  91 import org.whispersystems.libsignal.util.Pair;
  92 import org.whispersystems.libsignal.util.guava.Optional;
  93 import org.whispersystems.signalservice.api.InvalidMessageStructureException;
  94 import org.whispersystems.signalservice.api.SignalSessionLock;
  95 import org.whispersystems.signalservice.api.crypto.UntrustedIdentityException;
  96 import org.whispersystems.signalservice.api.groupsv2.GroupLinkNotActiveException;
  97 import org.whispersystems.signalservice.api.groupsv2.GroupsV2AuthorizationString;
  98 import org.whispersystems.signalservice.api.messages.SendMessageResult;
  99 import org.whispersystems.signalservice.api.messages.SignalServiceAttachment;
 100 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentPointer;
 101 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentRemoteId;
 102 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentStream;
 103 import org.whispersystems.signalservice.api.messages.SignalServiceContent;
 104 import org.whispersystems.signalservice.api.messages.SignalServiceDataMessage;
 105 import org.whispersystems.signalservice.api.messages.SignalServiceEnvelope;
 106 import org.whispersystems.signalservice.api.messages.SignalServiceGroup;
 107 import org.whispersystems.signalservice.api.messages.SignalServiceGroupV2;
 108 import org.whispersystems.signalservice.api.messages.SignalServiceReceiptMessage;
 109 import org.whispersystems.signalservice.api.messages.SignalServiceTypingMessage;
 110 import org.whispersystems.signalservice.api.messages.multidevice.BlockedListMessage;
 111 import org.whispersystems.signalservice.api.messages.multidevice.ContactsMessage;
 112 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContact;
 113 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsInputStream;
 114 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsOutputStream;
 115 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroup;
 116 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsInputStream;
 117 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsOutputStream;
 118 import org.whispersystems.signalservice.api.messages.multidevice.RequestMessage;
 119 import org.whispersystems.signalservice.api.messages.multidevice.SignalServiceSyncMessage;
 120 import org.whispersystems.signalservice.api.messages.multidevice.StickerPackOperationMessage;
 121 import org.whispersystems.signalservice.api.messages.multidevice.VerifiedMessage;
 122 import org.whispersystems.signalservice.api.profiles.ProfileAndCredential;
 123 import org.whispersystems.signalservice.api.profiles.SignalServiceProfile;
 124 import org.whispersystems.signalservice.api.push.SignalServiceAddress;
 125 import org.whispersystems.signalservice.api.push.exceptions.ConflictException;
 126 import org.whispersystems.signalservice.api.push.exceptions.MissingConfigurationException;
 127 import org.whispersystems.signalservice.api.util.DeviceNameUtil;
 128 import org.whispersystems.signalservice.api.util.InvalidNumberException;
 129 import org.whispersystems.signalservice.api.util.PhoneNumberFormatter;
 130 import org.whispersystems.signalservice.api.util.UuidUtil;
 131 import org.whispersystems.signalservice.api.websocket.WebSocketUnavailableException;
 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 ServiceEnvironmentConfig serviceEnvironmentConfig;
 179     private final SignalDependencies dependencies;
 180
 181     private SignalAccount account;
 182
 183     private final ExecutorService executor = Executors.newCachedThreadPool();
 184
 185     private final ProfileHelper profileHelper;
 186     private final GroupV2Helper groupV2Helper;
 187     private final PinHelper pinHelper;
 188     private final SendHelper sendHelper;
 189
 190     private final AvatarStore avatarStore;
 191     private final AttachmentStore attachmentStore;
 192     private final StickerPackStore stickerPackStore;
 193     private final SignalSessionLock sessionLock = new SignalSessionLock() {
 194         private final ReentrantLock LEGACY_LOCK = new ReentrantLock();
 195
 196         @Override
 197         public Lock acquire() {
 198             LEGACY_LOCK.lock();
 199             return LEGACY_LOCK::unlock;
 200         }
 201     };
 202
 203     Manager(
 204             SignalAccount account,
 205             PathConfig pathConfig,
 206             ServiceEnvironmentConfig serviceEnvironmentConfig,
 207             String userAgent
 208     ) {
 209         this.account = account;
 210         this.serviceEnvironmentConfig = serviceEnvironmentConfig;
 211
 212         final var credentialsProvider = new DynamicCredentialsProvider(account.getUuid(),
 213                 account.getUsername(),
 214                 account.getPassword(),
 215                 account.getDeviceId());
 216         this.dependencies = new SignalDependencies(account.getSelfAddress(),
 217                 serviceEnvironmentConfig,
 218                 userAgent,
 219                 credentialsProvider,
 220                 account.getSignalProtocolStore(),
 221                 executor,
 222                 sessionLock);
 223         this.pinHelper = new PinHelper(dependencies.getKeyBackupService());
 224
 225         final var unidentifiedAccessHelper = new UnidentifiedAccessHelper(account::getProfileKey,
 226                 account.getProfileStore()::getProfileKey,
 227                 this::getRecipientProfile,
 228                 this::getSenderCertificate);
 229         this.profileHelper = new ProfileHelper(account.getProfileStore()::getProfileKey,
 230                 unidentifiedAccessHelper::getAccessFor,
 231                 dependencies::getProfileService,
 232                 dependencies::getMessageReceiver,
 233                 this::resolveSignalServiceAddress);
 234         this.groupV2Helper = new GroupV2Helper(this::getRecipientProfileKeyCredential,
 235                 this::getRecipientProfile,
 236                 account::getSelfRecipientId,
 237                 dependencies.getGroupsV2Operations(),
 238                 dependencies.getGroupsV2Api(),
 239                 this::getGroupAuthForToday,
 240                 this::resolveSignalServiceAddress);
 241         this.avatarStore = new AvatarStore(pathConfig.getAvatarsPath());
 242         this.attachmentStore = new AttachmentStore(pathConfig.getAttachmentsPath());
 243         this.stickerPackStore = new StickerPackStore(pathConfig.getStickerPacksPath());
 244         this.sendHelper = new SendHelper(account,
 245                 dependencies,
 246                 unidentifiedAccessHelper,
 247                 this::resolveSignalServiceAddress,
 248                 this::resolveRecipient,
 249                 this::handleIdentityFailure,
 250                 this::getGroup,
 251                 this::refreshRegisteredUser);
 252     }
 253
 254     public String getUsername() {
 255         return account.getUsername();
 256     }
 257
 258     public SignalServiceAddress getSelfAddress() {
 259         return account.getSelfAddress();
 260     }
 261
 262     public RecipientId getSelfRecipientId() {
 263         return account.getSelfRecipientId();
 264     }
 265
 266     private IdentityKeyPair getIdentityKeyPair() {
 267         return account.getIdentityKeyPair();
 268     }
 269
 270     public int getDeviceId() {
 271         return account.getDeviceId();
 272     }
 273
 274     public static Manager init(
 275             String username,
 276             File settingsPath,
 277             ServiceEnvironment serviceEnvironment,
 278             String userAgent,
 279             final TrustNewIdentity trustNewIdentity
 280     ) throws IOException, NotRegisteredException {
 281         var pathConfig = PathConfig.createDefault(settingsPath);
 282
 283         if (!SignalAccount.userExists(pathConfig.getDataPath(), username)) {
 284             throw new NotRegisteredException();
 285         }
 286
 287         var account = SignalAccount.load(pathConfig.getDataPath(), username, true, trustNewIdentity);
 288
 289         if (!account.isRegistered()) {
 290             throw new NotRegisteredException();
 291         }
 292
 293         final var serviceEnvironmentConfig = ServiceConfig.getServiceEnvironmentConfig(serviceEnvironment, userAgent);
 294
 295         return new Manager(account, pathConfig, serviceEnvironmentConfig, userAgent);
 296     }
 297
 298     public static List<String> getAllLocalUsernames(File settingsPath) {
 299         var pathConfig = PathConfig.createDefault(settingsPath);
 300         final var dataPath = pathConfig.getDataPath();
 301         final var files = dataPath.listFiles();
 302
 303         if (files == null) {
 304             return List.of();
 305         }
 306
 307         return Arrays.stream(files)
 308                 .filter(File::isFile)
 309                 .map(File::getName)
 310                 .filter(file -> PhoneNumberFormatter.isValidNumber(file, null))
 311                 .collect(Collectors.toList());
 312     }
 313
 314     public void checkAccountState() throws IOException {
 315         if (account.getLastReceiveTimestamp() == 0) {
 316             logger.warn("The Signal protocol expects that incoming messages are regularly received.");
 317         } else {
 318             var diffInMilliseconds = System.currentTimeMillis() - account.getLastReceiveTimestamp();
 319             long days = TimeUnit.DAYS.convert(diffInMilliseconds, TimeUnit.MILLISECONDS);
 320             if (days > 7) {
 321                 logger.warn(
 322                         "Messages have been last received {} days ago. The Signal protocol expects that incoming messages are regularly received.",
 323                         days);
 324             }
 325         }
 326         if (dependencies.getAccountManager().getPreKeysCount() < ServiceConfig.PREKEY_MINIMUM_COUNT) {
 327             refreshPreKeys();
 328         }
 329         if (account.getUuid() == null) {
 330             account.setUuid(dependencies.getAccountManager().getOwnUuid());
 331         }
 332         updateAccountAttributes();
 333     }
 334
 335     /**
 336      * This is used for checking a set of phone numbers for registration on Signal
 337      *
 338      * @param numbers The set of phone number in question
 339      * @return A map of numbers to canonicalized number and uuid. If a number is not registered the uuid is null.
 340      * @throws IOException if its unable to get the contacts to check if they're registered
 341      */
 342     public Map<String, Pair<String, UUID>> areUsersRegistered(Set<String> numbers) throws IOException {
 343         Map<String, String> canonicalizedNumbers = numbers.stream().collect(Collectors.toMap(n -> n, n -> {
 344             try {
 345                 return canonicalizePhoneNumber(n);
 346             } catch (InvalidNumberException e) {
 347                 return "";
 348             }
 349         }));
 350
 351         // Note "contactDetails" has no optionals. It only gives us info on users who are registered
 352         var contactDetails = getRegisteredUsers(canonicalizedNumbers.values()
 353                 .stream()
 354                 .filter(s -> !s.isEmpty())
 355                 .collect(Collectors.toSet()));
 356
 357         // Store numbers as recipients so we have the number/uuid association
 358         contactDetails.forEach((number, uuid) -> resolveRecipientTrusted(new SignalServiceAddress(uuid, number)));
 359
 360         return numbers.stream().collect(Collectors.toMap(n -> n, n -> {
 361             final var number = canonicalizedNumbers.get(n);
 362             final var uuid = contactDetails.get(number);
 363             return new Pair<>(number.isEmpty() ? null : number, uuid);
 364         }));
 365     }
 366
 367     public void updateAccountAttributes() throws IOException {
 368         dependencies.getAccountManager()
 369                 .setAccountAttributes(account.getEncryptedDeviceName(),
 370                         null,
 371                         account.getLocalRegistrationId(),
 372                         true,
 373                         // set legacy pin only if no KBS master key is set
 374                         account.getPinMasterKey() == null ? account.getRegistrationLockPin() : null,
 375                         account.getPinMasterKey() == null ? null : account.getPinMasterKey().deriveRegistrationLock(),
 376                         account.getSelfUnidentifiedAccessKey(),
 377                         account.isUnrestrictedUnidentifiedAccess(),
 378                         capabilities,
 379                         account.isDiscoverableByPhoneNumber());
 380     }
 381
 382     /**
 383      * @param givenName  if null, the previous givenName will be kept
 384      * @param familyName if null, the previous familyName will be kept
 385      * @param about      if null, the previous about text will be kept
 386      * @param aboutEmoji if null, the previous about emoji will be kept
 387      * @param avatar     if avatar is null the image from the local avatar store is used (if present),
 388      */
 389     public void setProfile(
 390             String givenName, final String familyName, String about, String aboutEmoji, Optional<File> avatar
 391     ) throws IOException {
 392         var profile = getRecipientProfile(account.getSelfRecipientId());
 393         var builder = profile == null ? Profile.newBuilder() : Profile.newBuilder(profile);
 394         if (givenName != null) {
 395             builder.withGivenName(givenName);
 396         }
 397         if (familyName != null) {
 398             builder.withFamilyName(familyName);
 399         }
 400         if (about != null) {
 401             builder.withAbout(about);
 402         }
 403         if (aboutEmoji != null) {
 404             builder.withAboutEmoji(aboutEmoji);
 405         }
 406         var newProfile = builder.build();
 407
 408         try (final var streamDetails = avatar == null
 409                 ? avatarStore.retrieveProfileAvatar(getSelfAddress())
 410                 : avatar.isPresent() ? Utils.createStreamDetailsFromFile(avatar.get()) : null) {
 411             dependencies.getAccountManager()
 412                     .setVersionedProfile(account.getUuid(),
 413                             account.getProfileKey(),
 414                             newProfile.getInternalServiceName(),
 415                             newProfile.getAbout() == null ? "" : newProfile.getAbout(),
 416                             newProfile.getAboutEmoji() == null ? "" : newProfile.getAboutEmoji(),
 417                             Optional.absent(),
 418                             streamDetails);
 419         }
 420
 421         if (avatar != null) {
 422             if (avatar.isPresent()) {
 423                 avatarStore.storeProfileAvatar(getSelfAddress(),
 424                         outputStream -> IOUtils.copyFileToStream(avatar.get(), outputStream));
 425             } else {
 426                 avatarStore.deleteProfileAvatar(getSelfAddress());
 427             }
 428         }
 429         account.getProfileStore().storeProfile(account.getSelfRecipientId(), newProfile);
 430
 431         sendHelper.sendSyncMessage(SignalServiceSyncMessage.forFetchLatest(SignalServiceSyncMessage.FetchType.LOCAL_PROFILE));
 432     }
 433
 434     public void unregister() throws IOException {
 435         // When setting an empty GCM id, the Signal-Server also sets the fetchesMessages property to false.
 436         // If this is the master device, other users can't send messages to this number anymore.
 437         // If this is a linked device, other users can still send messages, but this device doesn't receive them anymore.
 438         dependencies.getAccountManager().setGcmId(Optional.absent());
 439
 440         account.setRegistered(false);
 441     }
 442
 443     public void deleteAccount() throws IOException {
 444         dependencies.getAccountManager().deleteAccount();
 445
 446         account.setRegistered(false);
 447     }
 448
 449     public List<Device> getLinkedDevices() throws IOException {
 450         var devices = dependencies.getAccountManager().getDevices();
 451         account.setMultiDevice(devices.size() > 1);
 452         var identityKey = account.getIdentityKeyPair().getPrivateKey();
 453         return devices.stream().map(d -> {
 454             String deviceName = d.getName();
 455             if (deviceName != null) {
 456                 try {
 457                     deviceName = DeviceNameUtil.decryptDeviceName(deviceName, identityKey);
 458                 } catch (IOException e) {
 459                     logger.debug("Failed to decrypt device name, maybe plain text?", e);
 460                 }
 461             }
 462             return new Device(d.getId(), deviceName, d.getCreated(), d.getLastSeen());
 463         }).collect(Collectors.toList());
 464     }
 465
 466     public void removeLinkedDevices(int deviceId) throws IOException {
 467         dependencies.getAccountManager().removeDevice(deviceId);
 468         var devices = dependencies.getAccountManager().getDevices();
 469         account.setMultiDevice(devices.size() > 1);
 470     }
 471
 472     public void addDeviceLink(URI linkUri) throws IOException, InvalidKeyException {
 473         var info = DeviceLinkInfo.parseDeviceLinkUri(linkUri);
 474
 475         addDevice(info.deviceIdentifier, info.deviceKey);
 476     }
 477
 478     private void addDevice(String deviceIdentifier, ECPublicKey deviceKey) throws IOException, InvalidKeyException {
 479         var identityKeyPair = getIdentityKeyPair();
 480         var verificationCode = dependencies.getAccountManager().getNewDeviceVerificationCode();
 481
 482         dependencies.getAccountManager()
 483                 .addDevice(deviceIdentifier,
 484                         deviceKey,
 485                         identityKeyPair,
 486                         Optional.of(account.getProfileKey().serialize()),
 487                         verificationCode);
 488         account.setMultiDevice(true);
 489     }
 490
 491     public void setRegistrationLockPin(Optional<String> pin) throws IOException, UnauthenticatedResponseException {
 492         if (!account.isMasterDevice()) {
 493             throw new RuntimeException("Only master device can set a PIN");
 494         }
 495         if (pin.isPresent()) {
 496             final var masterKey = account.getPinMasterKey() != null
 497                     ? account.getPinMasterKey()
 498                     : KeyUtils.createMasterKey();
 499
 500             pinHelper.setRegistrationLockPin(pin.get(), masterKey);
 501
 502             account.setRegistrationLockPin(pin.get(), masterKey);
 503         } else {
 504             // Remove KBS Pin
 505             pinHelper.removeRegistrationLockPin();
 506
 507             account.setRegistrationLockPin(null, null);
 508         }
 509     }
 510
 511     void refreshPreKeys() throws IOException {
 512         var oneTimePreKeys = generatePreKeys();
 513         final var identityKeyPair = getIdentityKeyPair();
 514         var signedPreKeyRecord = generateSignedPreKey(identityKeyPair);
 515
 516         dependencies.getAccountManager().setPreKeys(identityKeyPair.getPublicKey(), signedPreKeyRecord, oneTimePreKeys);
 517     }
 518
 519     private List<PreKeyRecord> generatePreKeys() {
 520         final var offset = account.getPreKeyIdOffset();
 521
 522         var records = KeyUtils.generatePreKeyRecords(offset, ServiceConfig.PREKEY_BATCH_SIZE);
 523         account.addPreKeys(records);
 524
 525         return records;
 526     }
 527
 528     private SignedPreKeyRecord generateSignedPreKey(IdentityKeyPair identityKeyPair) {
 529         final var signedPreKeyId = account.getNextSignedPreKeyId();
 530
 531         var record = KeyUtils.generateSignedPreKeyRecord(identityKeyPair, signedPreKeyId);
 532         account.addSignedPreKey(record);
 533
 534         return record;
 535     }
 536
 537     public Profile getRecipientProfile(
 538             RecipientId recipientId
 539     ) {
 540         return getRecipientProfile(recipientId, false);
 541     }
 542
 543     private final Set<RecipientId> pendingProfileRequest = new HashSet<>();
 544
 545     Profile getRecipientProfile(
 546             RecipientId recipientId, boolean force
 547     ) {
 548         var profile = account.getProfileStore().getProfile(recipientId);
 549
 550         var now = System.currentTimeMillis();
 551         // Profiles are cached for 24h before retrieving them again, unless forced
 552         if (!force && profile != null && now - profile.getLastUpdateTimestamp() < 24 * 60 * 60 * 1000) {
 553             return profile;
 554         }
 555
 556         synchronized (pendingProfileRequest) {
 557             if (pendingProfileRequest.contains(recipientId)) {
 558                 return profile;
 559             }
 560             pendingProfileRequest.add(recipientId);
 561         }
 562         final SignalServiceProfile encryptedProfile;
 563         try {
 564             encryptedProfile = retrieveEncryptedProfile(recipientId);
 565         } finally {
 566             synchronized (pendingProfileRequest) {
 567                 pendingProfileRequest.remove(recipientId);
 568             }
 569         }
 570         if (encryptedProfile == null) {
 571             return null;
 572         }
 573
 574         profile = decryptProfileIfKeyKnown(recipientId, encryptedProfile);
 575         account.getProfileStore().storeProfile(recipientId, profile);
 576
 577         return profile;
 578     }
 579
 580     private Profile decryptProfileIfKeyKnown(
 581             final RecipientId recipientId, final SignalServiceProfile encryptedProfile
 582     ) {
 583         var profileKey = account.getProfileStore().getProfileKey(recipientId);
 584         if (profileKey == null) {
 585             return new Profile(System.currentTimeMillis(),
 586                     null,
 587                     null,
 588                     null,
 589                     null,
 590                     ProfileUtils.getUnidentifiedAccessMode(encryptedProfile, null),
 591                     ProfileUtils.getCapabilities(encryptedProfile));
 592         }
 593
 594         return decryptProfileAndDownloadAvatar(recipientId, profileKey, encryptedProfile);
 595     }
 596
 597     private SignalServiceProfile retrieveEncryptedProfile(RecipientId recipientId) {
 598         try {
 599             return retrieveProfileAndCredential(recipientId, SignalServiceProfile.RequestType.PROFILE).getProfile();
 600         } catch (IOException e) {
 601             logger.warn("Failed to retrieve profile, ignoring: {}", e.getMessage());
 602             return null;
 603         }
 604     }
 605
 606     private ProfileAndCredential retrieveProfileAndCredential(
 607             final RecipientId recipientId, final SignalServiceProfile.RequestType requestType
 608     ) throws IOException {
 609         final var profileAndCredential = profileHelper.retrieveProfileSync(recipientId, requestType);
 610         final var profile = profileAndCredential.getProfile();
 611
 612         try {
 613             var newIdentity = account.getIdentityKeyStore()
 614                     .saveIdentity(recipientId,
 615                             new IdentityKey(Base64.getDecoder().decode(profile.getIdentityKey())),
 616                             new Date());
 617
 618             if (newIdentity) {
 619                 account.getSessionStore().archiveSessions(recipientId);
 620             }
 621         } catch (InvalidKeyException ignored) {
 622             logger.warn("Got invalid identity key in profile for {}",
 623                     resolveSignalServiceAddress(recipientId).getIdentifier());
 624         }
 625         return profileAndCredential;
 626     }
 627
 628     private ProfileKeyCredential getRecipientProfileKeyCredential(RecipientId recipientId) {
 629         var profileKeyCredential = account.getProfileStore().getProfileKeyCredential(recipientId);
 630         if (profileKeyCredential != null) {
 631             return profileKeyCredential;
 632         }
 633
 634         ProfileAndCredential profileAndCredential;
 635         try {
 636             profileAndCredential = retrieveProfileAndCredential(recipientId,
 637                     SignalServiceProfile.RequestType.PROFILE_AND_CREDENTIAL);
 638         } catch (IOException e) {
 639             logger.warn("Failed to retrieve profile key credential, ignoring: {}", e.getMessage());
 640             return null;
 641         }
 642
 643         profileKeyCredential = profileAndCredential.getProfileKeyCredential().orNull();
 644         account.getProfileStore().storeProfileKeyCredential(recipientId, profileKeyCredential);
 645
 646         var profileKey = account.getProfileStore().getProfileKey(recipientId);
 647         if (profileKey != null) {
 648             final var profile = decryptProfileAndDownloadAvatar(recipientId,
 649                     profileKey,
 650                     profileAndCredential.getProfile());
 651             account.getProfileStore().storeProfile(recipientId, profile);
 652         }
 653
 654         return profileKeyCredential;
 655     }
 656
 657     private Profile decryptProfileAndDownloadAvatar(
 658             final RecipientId recipientId, final ProfileKey profileKey, final SignalServiceProfile encryptedProfile
 659     ) {
 660         if (encryptedProfile.getAvatar() != null) {
 661             downloadProfileAvatar(resolveSignalServiceAddress(recipientId), encryptedProfile.getAvatar(), profileKey);
 662         }
 663
 664         return ProfileUtils.decryptProfile(profileKey, encryptedProfile);
 665     }
 666
 667     private Optional<SignalServiceAttachmentStream> createGroupAvatarAttachment(GroupId groupId) throws IOException {
 668         final var streamDetails = avatarStore.retrieveGroupAvatar(groupId);
 669         if (streamDetails == null) {
 670             return Optional.absent();
 671         }
 672
 673         return Optional.of(AttachmentUtils.createAttachment(streamDetails, Optional.absent()));
 674     }
 675
 676     private Optional<SignalServiceAttachmentStream> createContactAvatarAttachment(SignalServiceAddress address) throws IOException {
 677         final var streamDetails = avatarStore.retrieveContactAvatar(address);
 678         if (streamDetails == null) {
 679             return Optional.absent();
 680         }
 681
 682         return Optional.of(AttachmentUtils.createAttachment(streamDetails, Optional.absent()));
 683     }
 684
 685     private GroupInfo getGroupForUpdating(GroupId groupId) throws GroupNotFoundException, NotAGroupMemberException {
 686         var g = getGroup(groupId);
 687         if (g == null) {
 688             throw new GroupNotFoundException(groupId);
 689         }
 690         if (!g.isMember(account.getSelfRecipientId()) && !g.isPendingMember(account.getSelfRecipientId())) {
 691             throw new NotAGroupMemberException(groupId, g.getTitle());
 692         }
 693         return g;
 694     }
 695
 696     public List<GroupInfo> getGroups() {
 697         return account.getGroupStore().getGroups();
 698     }
 699
 700     public Pair<Long, List<SendMessageResult>> sendGroupMessage(
 701             Message message, GroupId groupId
 702     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 703         final var messageBuilder = createMessageBuilder();
 704         applyMessage(messageBuilder, message);
 705
 706         return sendHelper.sendAsGroupMessage(messageBuilder, groupId);
 707     }
 708
 709     public Pair<Long, List<SendMessageResult>> sendGroupMessageReaction(
 710             String emoji, boolean remove, String targetAuthor, long targetSentTimestamp, GroupId groupId
 711     ) throws IOException, InvalidNumberException, NotAGroupMemberException, GroupNotFoundException {
 712         var targetAuthorRecipientId = canonicalizeAndResolveRecipient(targetAuthor);
 713         var reaction = new SignalServiceDataMessage.Reaction(emoji,
 714                 remove,
 715                 resolveSignalServiceAddress(targetAuthorRecipientId),
 716                 targetSentTimestamp);
 717         final var messageBuilder = createMessageBuilder().withReaction(reaction);
 718
 719         return sendHelper.sendAsGroupMessage(messageBuilder, groupId);
 720     }
 721
 722     public Pair<Long, List<SendMessageResult>> sendQuitGroupMessage(
 723             GroupId groupId, Set<String> groupAdmins
 724     ) throws GroupNotFoundException, IOException, NotAGroupMemberException, InvalidNumberException, LastGroupAdminException {
 725         var group = getGroupForUpdating(groupId);
 726         if (group instanceof GroupInfoV1) {
 727             return quitGroupV1((GroupInfoV1) group);
 728         }
 729
 730         final var newAdmins = getRecipientIds(groupAdmins);
 731         try {
 732             return quitGroupV2((GroupInfoV2) group, newAdmins);
 733         } catch (ConflictException e) {
 734             // Detected conflicting update, refreshing group and trying again
 735             group = getGroup(groupId, true);
 736             return quitGroupV2((GroupInfoV2) group, newAdmins);
 737         }
 738     }
 739
 740     private Pair<Long, List<SendMessageResult>> quitGroupV1(final GroupInfoV1 groupInfoV1) throws IOException {
 741         var group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.QUIT)
 742                 .withId(groupInfoV1.getGroupId().serialize())
 743                 .build();
 744
 745         var messageBuilder = createMessageBuilder().asGroupMessage(group);
 746         groupInfoV1.removeMember(account.getSelfRecipientId());
 747         account.getGroupStore().updateGroup(groupInfoV1);
 748         return sendHelper.sendGroupMessage(messageBuilder.build(),
 749                 groupInfoV1.getMembersIncludingPendingWithout(account.getSelfRecipientId()));
 750     }
 751
 752     private Pair<Long, List<SendMessageResult>> quitGroupV2(
 753             final GroupInfoV2 groupInfoV2, final Set<RecipientId> newAdmins
 754     ) throws LastGroupAdminException, IOException {
 755         final var currentAdmins = groupInfoV2.getAdminMembers();
 756         newAdmins.removeAll(currentAdmins);
 757         newAdmins.retainAll(groupInfoV2.getMembers());
 758         if (currentAdmins.contains(getSelfRecipientId())
 759                 && currentAdmins.size() == 1
 760                 && groupInfoV2.getMembers().size() > 1
 761                 && newAdmins.size() == 0) {
 762             // Last admin can't leave the group, unless she's also the last member
 763             throw new LastGroupAdminException(groupInfoV2.getGroupId(), groupInfoV2.getTitle());
 764         }
 765         final var groupGroupChangePair = groupV2Helper.leaveGroup(groupInfoV2, newAdmins);
 766         groupInfoV2.setGroup(groupGroupChangePair.first(), this::resolveRecipient);
 767         var messageBuilder = getGroupUpdateMessageBuilder(groupInfoV2, groupGroupChangePair.second().toByteArray());
 768         account.getGroupStore().updateGroup(groupInfoV2);
 769         return sendHelper.sendGroupMessage(messageBuilder.build(),
 770                 groupInfoV2.getMembersIncludingPendingWithout(account.getSelfRecipientId()));
 771     }
 772
 773     public void deleteGroup(GroupId groupId) throws IOException {
 774         account.getGroupStore().deleteGroup(groupId);
 775         avatarStore.deleteGroupAvatar(groupId);
 776     }
 777
 778     public Pair<GroupId, List<SendMessageResult>> createGroup(
 779             String name, List<String> members, File avatarFile
 780     ) throws IOException, AttachmentInvalidException, InvalidNumberException {
 781         return createGroup(name, members == null ? null : getRecipientIds(members), avatarFile);
 782     }
 783
 784     private Pair<GroupId, List<SendMessageResult>> createGroup(
 785             String name, Set<RecipientId> members, File avatarFile
 786     ) throws IOException, AttachmentInvalidException {
 787         final var selfRecipientId = account.getSelfRecipientId();
 788         if (members != null && members.contains(selfRecipientId)) {
 789             members = new HashSet<>(members);
 790             members.remove(selfRecipientId);
 791         }
 792
 793         var gv2Pair = groupV2Helper.createGroup(name == null ? "" : name,
 794                 members == null ? Set.of() : members,
 795                 avatarFile);
 796
 797         SignalServiceDataMessage.Builder messageBuilder;
 798         if (gv2Pair == null) {
 799             // Failed to create v2 group, creating v1 group instead
 800             var gv1 = new GroupInfoV1(GroupIdV1.createRandom());
 801             gv1.addMembers(List.of(selfRecipientId));
 802             final var result = updateGroupV1(gv1, name, members, avatarFile);
 803             return new Pair<>(gv1.getGroupId(), result.second());
 804         }
 805
 806         final var gv2 = gv2Pair.first();
 807         final var decryptedGroup = gv2Pair.second();
 808
 809         gv2.setGroup(decryptedGroup, this::resolveRecipient);
 810         if (avatarFile != null) {
 811             avatarStore.storeGroupAvatar(gv2.getGroupId(),
 812                     outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
 813         }
 814         messageBuilder = getGroupUpdateMessageBuilder(gv2, null);
 815         account.getGroupStore().updateGroup(gv2);
 816
 817         final var result = sendHelper.sendGroupMessage(messageBuilder.build(),
 818                 gv2.getMembersIncludingPendingWithout(selfRecipientId));
 819         return new Pair<>(gv2.getGroupId(), result.second());
 820     }
 821
 822     public Pair<Long, List<SendMessageResult>> updateGroup(
 823             GroupId groupId,
 824             String name,
 825             String description,
 826             List<String> members,
 827             List<String> removeMembers,
 828             List<String> admins,
 829             List<String> removeAdmins,
 830             boolean resetGroupLink,
 831             GroupLinkState groupLinkState,
 832             GroupPermission addMemberPermission,
 833             GroupPermission editDetailsPermission,
 834             File avatarFile,
 835             Integer expirationTimer,
 836             Boolean isAnnouncementGroup
 837     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, InvalidNumberException, NotAGroupMemberException {
 838         return updateGroup(groupId,
 839                 name,
 840                 description,
 841                 members == null ? null : getRecipientIds(members),
 842                 removeMembers == null ? null : getRecipientIds(removeMembers),
 843                 admins == null ? null : getRecipientIds(admins),
 844                 removeAdmins == null ? null : getRecipientIds(removeAdmins),
 845                 resetGroupLink,
 846                 groupLinkState,
 847                 addMemberPermission,
 848                 editDetailsPermission,
 849                 avatarFile,
 850                 expirationTimer,
 851                 isAnnouncementGroup);
 852     }
 853
 854     private Pair<Long, List<SendMessageResult>> updateGroup(
 855             final GroupId groupId,
 856             final String name,
 857             final String description,
 858             final Set<RecipientId> members,
 859             final Set<RecipientId> removeMembers,
 860             final Set<RecipientId> admins,
 861             final Set<RecipientId> removeAdmins,
 862             final boolean resetGroupLink,
 863             final GroupLinkState groupLinkState,
 864             final GroupPermission addMemberPermission,
 865             final GroupPermission editDetailsPermission,
 866             final File avatarFile,
 867             final Integer expirationTimer,
 868             final Boolean isAnnouncementGroup
 869     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 870         var group = getGroupForUpdating(groupId);
 871
 872         if (group instanceof GroupInfoV2) {
 873             try {
 874                 return updateGroupV2((GroupInfoV2) group,
 875                         name,
 876                         description,
 877                         members,
 878                         removeMembers,
 879                         admins,
 880                         removeAdmins,
 881                         resetGroupLink,
 882                         groupLinkState,
 883                         addMemberPermission,
 884                         editDetailsPermission,
 885                         avatarFile,
 886                         expirationTimer,
 887                         isAnnouncementGroup);
 888             } catch (ConflictException e) {
 889                 // Detected conflicting update, refreshing group and trying again
 890                 group = getGroup(groupId, true);
 891                 return updateGroupV2((GroupInfoV2) group,
 892                         name,
 893                         description,
 894                         members,
 895                         removeMembers,
 896                         admins,
 897                         removeAdmins,
 898                         resetGroupLink,
 899                         groupLinkState,
 900                         addMemberPermission,
 901                         editDetailsPermission,
 902                         avatarFile,
 903                         expirationTimer,
 904                         isAnnouncementGroup);
 905             }
 906         }
 907
 908         final var gv1 = (GroupInfoV1) group;
 909         final var result = updateGroupV1(gv1, name, members, avatarFile);
 910         if (expirationTimer != null) {
 911             setExpirationTimer(gv1, expirationTimer);
 912         }
 913         return result;
 914     }
 915
 916     private Pair<Long, List<SendMessageResult>> updateGroupV1(
 917             final GroupInfoV1 gv1, final String name, final Set<RecipientId> members, final File avatarFile
 918     ) throws IOException, AttachmentInvalidException {
 919         updateGroupV1Details(gv1, name, members, avatarFile);
 920         var messageBuilder = getGroupUpdateMessageBuilder(gv1);
 921
 922         account.getGroupStore().updateGroup(gv1);
 923
 924         return sendHelper.sendGroupMessage(messageBuilder.build(),
 925                 gv1.getMembersIncludingPendingWithout(account.getSelfRecipientId()));
 926     }
 927
 928     private void updateGroupV1Details(
 929             final GroupInfoV1 g, final String name, final Collection<RecipientId> members, final File avatarFile
 930     ) throws IOException {
 931         if (name != null) {
 932             g.name = name;
 933         }
 934
 935         if (members != null) {
 936             final var newMemberAddresses = members.stream()
 937                     .filter(member -> !g.isMember(member))
 938                     .map(this::resolveSignalServiceAddress)
 939                     .collect(Collectors.toList());
 940             final var newE164Members = new HashSet<String>();
 941             for (var member : newMemberAddresses) {
 942                 if (!member.getNumber().isPresent()) {
 943                     continue;
 944                 }
 945                 newE164Members.add(member.getNumber().get());
 946             }
 947
 948             final var registeredUsers = getRegisteredUsers(newE164Members);
 949             if (registeredUsers.size() != newE164Members.size()) {
 950                 // Some of the new members are not registered on Signal
 951                 newE164Members.removeAll(registeredUsers.keySet());
 952                 throw new IOException("Failed to add members "
 953                         + String.join(", ", newE164Members)
 954                         + " to group: Not registered on Signal");
 955             }
 956
 957             g.addMembers(members);
 958         }
 959
 960         if (avatarFile != null) {
 961             avatarStore.storeGroupAvatar(g.getGroupId(),
 962                     outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
 963         }
 964     }
 965
 966     private Pair<Long, List<SendMessageResult>> updateGroupV2(
 967             final GroupInfoV2 group,
 968             final String name,
 969             final String description,
 970             final Set<RecipientId> members,
 971             final Set<RecipientId> removeMembers,
 972             final Set<RecipientId> admins,
 973             final Set<RecipientId> removeAdmins,
 974             final boolean resetGroupLink,
 975             final GroupLinkState groupLinkState,
 976             final GroupPermission addMemberPermission,
 977             final GroupPermission editDetailsPermission,
 978             final File avatarFile,
 979             final Integer expirationTimer,
 980             final Boolean isAnnouncementGroup
 981     ) throws IOException {
 982         Pair<Long, List<SendMessageResult>> result = null;
 983         if (group.isPendingMember(account.getSelfRecipientId())) {
 984             var groupGroupChangePair = groupV2Helper.acceptInvite(group);
 985             result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
 986         }
 987
 988         if (members != null) {
 989             final var newMembers = new HashSet<>(members);
 990             newMembers.removeAll(group.getMembers());
 991             if (newMembers.size() > 0) {
 992                 var groupGroupChangePair = groupV2Helper.addMembers(group, newMembers);
 993                 result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
 994             }
 995         }
 996
 997         if (removeMembers != null) {
 998             var existingRemoveMembers = new HashSet<>(removeMembers);
 999             existingRemoveMembers.retainAll(group.getMembers());
1000             existingRemoveMembers.remove(getSelfRecipientId());// self can be removed with sendQuitGroupMessage
1001             if (existingRemoveMembers.size() > 0) {
1002                 var groupGroupChangePair = groupV2Helper.removeMembers(group, existingRemoveMembers);
1003                 result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1004             }
1005
1006             var pendingRemoveMembers = new HashSet<>(removeMembers);
1007             pendingRemoveMembers.retainAll(group.getPendingMembers());
1008             if (pendingRemoveMembers.size() > 0) {
1009                 var groupGroupChangePair = groupV2Helper.revokeInvitedMembers(group, pendingRemoveMembers);
1010                 result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1011             }
1012         }
1013
1014         if (admins != null) {
1015             final var newAdmins = new HashSet<>(admins);
1016             newAdmins.retainAll(group.getMembers());
1017             newAdmins.removeAll(group.getAdminMembers());
1018             if (newAdmins.size() > 0) {
1019                 for (var admin : newAdmins) {
1020                     var groupGroupChangePair = groupV2Helper.setMemberAdmin(group, admin, true);
1021                     result = sendUpdateGroupV2Message(group,
1022                             groupGroupChangePair.first(),
1023                             groupGroupChangePair.second());
1024                 }
1025             }
1026         }
1027
1028         if (removeAdmins != null) {
1029             final var existingRemoveAdmins = new HashSet<>(removeAdmins);
1030             existingRemoveAdmins.retainAll(group.getAdminMembers());
1031             if (existingRemoveAdmins.size() > 0) {
1032                 for (var admin : existingRemoveAdmins) {
1033                     var groupGroupChangePair = groupV2Helper.setMemberAdmin(group, admin, false);
1034                     result = sendUpdateGroupV2Message(group,
1035                             groupGroupChangePair.first(),
1036                             groupGroupChangePair.second());
1037                 }
1038             }
1039         }
1040
1041         if (resetGroupLink) {
1042             var groupGroupChangePair = groupV2Helper.resetGroupLinkPassword(group);
1043             result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1044         }
1045
1046         if (groupLinkState != null) {
1047             var groupGroupChangePair = groupV2Helper.setGroupLinkState(group, groupLinkState);
1048             result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1049         }
1050
1051         if (addMemberPermission != null) {
1052             var groupGroupChangePair = groupV2Helper.setAddMemberPermission(group, addMemberPermission);
1053             result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1054         }
1055
1056         if (editDetailsPermission != null) {
1057             var groupGroupChangePair = groupV2Helper.setEditDetailsPermission(group, editDetailsPermission);
1058             result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1059         }
1060
1061         if (expirationTimer != null) {
1062             var groupGroupChangePair = groupV2Helper.setMessageExpirationTimer(group, expirationTimer);
1063             result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1064         }
1065
1066         if (isAnnouncementGroup != null) {
1067             var groupGroupChangePair = groupV2Helper.setIsAnnouncementGroup(group, isAnnouncementGroup);
1068             result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1069         }
1070
1071         if (name != null || description != null || avatarFile != null) {
1072             var groupGroupChangePair = groupV2Helper.updateGroup(group, name, description, avatarFile);
1073             if (avatarFile != null) {
1074                 avatarStore.storeGroupAvatar(group.getGroupId(),
1075                         outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
1076             }
1077             result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1078         }
1079
1080         return result;
1081     }
1082
1083     public Pair<GroupId, List<SendMessageResult>> joinGroup(
1084             GroupInviteLinkUrl inviteLinkUrl
1085     ) throws IOException, GroupLinkNotActiveException {
1086         final var groupJoinInfo = groupV2Helper.getDecryptedGroupJoinInfo(inviteLinkUrl.getGroupMasterKey(),
1087                 inviteLinkUrl.getPassword());
1088         final var groupChange = groupV2Helper.joinGroup(inviteLinkUrl.getGroupMasterKey(),
1089                 inviteLinkUrl.getPassword(),
1090                 groupJoinInfo);
1091         final var group = getOrMigrateGroup(inviteLinkUrl.getGroupMasterKey(),
1092                 groupJoinInfo.getRevision() + 1,
1093                 groupChange.toByteArray());
1094
1095         if (group.getGroup() == null) {
1096             // Only requested member, can't send update to group members
1097             return new Pair<>(group.getGroupId(), List.of());
1098         }
1099
1100         final var result = sendUpdateGroupV2Message(group, group.getGroup(), groupChange);
1101
1102         return new Pair<>(group.getGroupId(), result.second());
1103     }
1104
1105     private Pair<Long, List<SendMessageResult>> sendUpdateGroupV2Message(
1106             GroupInfoV2 group, DecryptedGroup newDecryptedGroup, GroupChange groupChange
1107     ) throws IOException {
1108         final var selfRecipientId = account.getSelfRecipientId();
1109         final var members = group.getMembersIncludingPendingWithout(selfRecipientId);
1110         group.setGroup(newDecryptedGroup, this::resolveRecipient);
1111         members.addAll(group.getMembersIncludingPendingWithout(selfRecipientId));
1112
1113         final var messageBuilder = getGroupUpdateMessageBuilder(group, groupChange.toByteArray());
1114         account.getGroupStore().updateGroup(group);
1115         return sendHelper.sendGroupMessage(messageBuilder.build(), members);
1116     }
1117
1118     private static int currentTimeDays() {
1119         return (int) TimeUnit.MILLISECONDS.toDays(System.currentTimeMillis());
1120     }
1121
1122     private GroupsV2AuthorizationString getGroupAuthForToday(
1123             final GroupSecretParams groupSecretParams
1124     ) throws IOException {
1125         final var today = currentTimeDays();
1126         // Returns credentials for the next 7 days
1127         final var credentials = dependencies.getGroupsV2Api().getCredentials(today);
1128         // TODO cache credentials until they expire
1129         var authCredentialResponse = credentials.get(today);
1130         try {
1131             return dependencies.getGroupsV2Api()
1132                     .getGroupsV2AuthorizationString(account.getUuid(),
1133                             today,
1134                             groupSecretParams,
1135                             authCredentialResponse);
1136         } catch (VerificationFailedException e) {
1137             throw new IOException(e);
1138         }
1139     }
1140
1141     Pair<Long, List<SendMessageResult>> sendGroupInfoMessage(
1142             GroupIdV1 groupId, SignalServiceAddress recipient
1143     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, AttachmentInvalidException {
1144         GroupInfoV1 g;
1145         var group = getGroupForUpdating(groupId);
1146         if (!(group instanceof GroupInfoV1)) {
1147             throw new IOException("Received an invalid group request for a v2 group!");
1148         }
1149         g = (GroupInfoV1) group;
1150
1151         final var recipientId = resolveRecipient(recipient);
1152         if (!g.isMember(recipientId)) {
1153             throw new NotAGroupMemberException(groupId, g.name);
1154         }
1155
1156         var messageBuilder = getGroupUpdateMessageBuilder(g);
1157
1158         // Send group message only to the recipient who requested it
1159         return sendHelper.sendGroupMessage(messageBuilder.build(), Set.of(recipientId));
1160     }
1161
1162     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfoV1 g) throws AttachmentInvalidException {
1163         var group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.UPDATE)
1164                 .withId(g.getGroupId().serialize())
1165                 .withName(g.name)
1166                 .withMembers(g.getMembers()
1167                         .stream()
1168                         .map(this::resolveSignalServiceAddress)
1169                         .collect(Collectors.toList()));
1170
1171         try {
1172             final var attachment = createGroupAvatarAttachment(g.getGroupId());
1173             if (attachment.isPresent()) {
1174                 group.withAvatar(attachment.get());
1175             }
1176         } catch (IOException e) {
1177             throw new AttachmentInvalidException(g.getGroupId().toBase64(), e);
1178         }
1179
1180         return createMessageBuilder().asGroupMessage(group.build()).withExpiration(g.getMessageExpirationTime());
1181     }
1182
1183     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfoV2 g, byte[] signedGroupChange) {
1184         var group = SignalServiceGroupV2.newBuilder(g.getMasterKey())
1185                 .withRevision(g.getGroup().getRevision())
1186                 .withSignedGroupChange(signedGroupChange);
1187         return createMessageBuilder().asGroupMessage(group.build()).withExpiration(g.getMessageExpirationTime());
1188     }
1189
1190     Pair<Long, List<SendMessageResult>> sendGroupInfoRequest(
1191             GroupIdV1 groupId, SignalServiceAddress recipient
1192     ) throws IOException {
1193         var group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.REQUEST_INFO).withId(groupId.serialize());
1194
1195         var messageBuilder = createMessageBuilder().asGroupMessage(group.build());
1196
1197         // Send group info request message to the recipient who sent us a message with this groupId
1198         return sendHelper.sendGroupMessage(messageBuilder.build(), Set.of(resolveRecipient(recipient)));
1199     }
1200
1201     public void sendReadReceipt(
1202             String sender, List<Long> messageIds
1203     ) throws IOException, UntrustedIdentityException, InvalidNumberException {
1204         var receiptMessage = new SignalServiceReceiptMessage(SignalServiceReceiptMessage.Type.READ,
1205                 messageIds,
1206                 System.currentTimeMillis());
1207
1208         sendHelper.sendReceiptMessage(receiptMessage, canonicalizeAndResolveRecipient(sender));
1209     }
1210
1211     public void sendViewedReceipt(
1212             String sender, List<Long> messageIds
1213     ) throws IOException, UntrustedIdentityException, InvalidNumberException {
1214         var receiptMessage = new SignalServiceReceiptMessage(SignalServiceReceiptMessage.Type.VIEWED,
1215                 messageIds,
1216                 System.currentTimeMillis());
1217
1218         sendHelper.sendReceiptMessage(receiptMessage, canonicalizeAndResolveRecipient(sender));
1219     }
1220
1221     void sendDeliveryReceipt(
1222             SignalServiceAddress remoteAddress, List<Long> messageIds
1223     ) throws IOException, UntrustedIdentityException {
1224         var receiptMessage = new SignalServiceReceiptMessage(SignalServiceReceiptMessage.Type.DELIVERY,
1225                 messageIds,
1226                 System.currentTimeMillis());
1227
1228         sendHelper.sendReceiptMessage(receiptMessage, resolveRecipient(remoteAddress));
1229     }
1230
1231     public Pair<Long, List<SendMessageResult>> sendMessage(
1232             Message message, List<String> recipients
1233     ) throws IOException, AttachmentInvalidException, InvalidNumberException {
1234         final var messageBuilder = createMessageBuilder();
1235         applyMessage(messageBuilder, message);
1236         return sendHelper.sendMessage(messageBuilder, getRecipientIds(recipients));
1237     }
1238
1239     private void applyMessage(
1240             final SignalServiceDataMessage.Builder messageBuilder, final Message message
1241     ) throws AttachmentInvalidException, IOException {
1242         messageBuilder.withBody(message.getMessageText());
1243         if (message.getAttachments() != null) {
1244             var attachmentStreams = AttachmentUtils.getSignalServiceAttachments(message.getAttachments());
1245
1246             // Upload attachments here, so we only upload once even for multiple recipients
1247             var messageSender = dependencies.getMessageSender();
1248             var attachmentPointers = new ArrayList<SignalServiceAttachment>(attachmentStreams.size());
1249             for (var attachment : attachmentStreams) {
1250                 if (attachment.isStream()) {
1251                     attachmentPointers.add(messageSender.uploadAttachment(attachment.asStream()));
1252                 } else if (attachment.isPointer()) {
1253                     attachmentPointers.add(attachment.asPointer());
1254                 }
1255             }
1256
1257             messageBuilder.withAttachments(attachmentPointers);
1258         }
1259     }
1260
1261     public Pair<Long, SendMessageResult> sendSelfMessage(final Message message) throws IOException, AttachmentInvalidException {
1262         final var messageBuilder = createMessageBuilder();
1263         applyMessage(messageBuilder, message);
1264         return sendHelper.sendSelfMessage(messageBuilder);
1265     }
1266
1267     public Pair<Long, List<SendMessageResult>> sendRemoteDeleteMessage(
1268             long targetSentTimestamp, List<String> recipients
1269     ) throws IOException, InvalidNumberException {
1270         var delete = new SignalServiceDataMessage.RemoteDelete(targetSentTimestamp);
1271         final var messageBuilder = createMessageBuilder().withRemoteDelete(delete);
1272         return sendHelper.sendMessage(messageBuilder, getRecipientIds(recipients));
1273     }
1274
1275     public Pair<Long, List<SendMessageResult>> sendGroupRemoteDeleteMessage(
1276             long targetSentTimestamp, GroupId groupId
1277     ) throws IOException, NotAGroupMemberException, GroupNotFoundException {
1278         var delete = new SignalServiceDataMessage.RemoteDelete(targetSentTimestamp);
1279         final var messageBuilder = createMessageBuilder().withRemoteDelete(delete);
1280         return sendHelper.sendAsGroupMessage(messageBuilder, groupId);
1281     }
1282
1283     public Pair<Long, List<SendMessageResult>> sendMessageReaction(
1284             String emoji, boolean remove, String targetAuthor, long targetSentTimestamp, List<String> recipients
1285     ) throws IOException, InvalidNumberException {
1286         var targetAuthorRecipientId = canonicalizeAndResolveRecipient(targetAuthor);
1287         var reaction = new SignalServiceDataMessage.Reaction(emoji,
1288                 remove,
1289                 resolveSignalServiceAddress(targetAuthorRecipientId),
1290                 targetSentTimestamp);
1291         final var messageBuilder = createMessageBuilder().withReaction(reaction);
1292         return sendHelper.sendMessage(messageBuilder, getRecipientIds(recipients));
1293     }
1294
1295     public Pair<Long, List<SendMessageResult>> sendEndSessionMessage(List<String> recipients) throws IOException, InvalidNumberException {
1296         var messageBuilder = createMessageBuilder().asEndSessionMessage();
1297
1298         final var recipientIds = getRecipientIds(recipients);
1299         try {
1300             return sendHelper.sendMessage(messageBuilder, recipientIds);
1301         } finally {
1302             for (var recipientId : recipientIds) {
1303                 handleEndSession(recipientId);
1304             }
1305         }
1306     }
1307
1308     void renewSession(RecipientId recipientId) throws IOException {
1309         account.getSessionStore().archiveSessions(recipientId);
1310         if (!recipientId.equals(getSelfRecipientId())) {
1311             sendHelper.sendNullMessage(recipientId);
1312         }
1313     }
1314
1315     public void setContactName(String number, String name) throws InvalidNumberException, NotMasterDeviceException {
1316         if (!account.isMasterDevice()) {
1317             throw new NotMasterDeviceException();
1318         }
1319         final var recipientId = canonicalizeAndResolveRecipient(number);
1320         var contact = account.getContactStore().getContact(recipientId);
1321         final var builder = contact == null ? Contact.newBuilder() : Contact.newBuilder(contact);
1322         account.getContactStore().storeContact(recipientId, builder.withName(name).build());
1323     }
1324
1325     public void setContactBlocked(
1326             String number, boolean blocked
1327     ) throws InvalidNumberException, NotMasterDeviceException {
1328         if (!account.isMasterDevice()) {
1329             throw new NotMasterDeviceException();
1330         }
1331         setContactBlocked(canonicalizeAndResolveRecipient(number), blocked);
1332     }
1333
1334     private void setContactBlocked(RecipientId recipientId, boolean blocked) {
1335         var contact = account.getContactStore().getContact(recipientId);
1336         final var builder = contact == null ? Contact.newBuilder() : Contact.newBuilder(contact);
1337         account.getContactStore().storeContact(recipientId, builder.withBlocked(blocked).build());
1338     }
1339
1340     public void setGroupBlocked(final GroupId groupId, final boolean blocked) throws GroupNotFoundException {
1341         var group = getGroup(groupId);
1342         if (group == null) {
1343             throw new GroupNotFoundException(groupId);
1344         }
1345
1346         group.setBlocked(blocked);
1347         account.getGroupStore().updateGroup(group);
1348     }
1349
1350     private void setExpirationTimer(RecipientId recipientId, int messageExpirationTimer) {
1351         var contact = account.getContactStore().getContact(recipientId);
1352         if (contact != null && contact.getMessageExpirationTime() == messageExpirationTimer) {
1353             return;
1354         }
1355         final var builder = contact == null ? Contact.newBuilder() : Contact.newBuilder(contact);
1356         account.getContactStore()
1357                 .storeContact(recipientId, builder.withMessageExpirationTime(messageExpirationTimer).build());
1358     }
1359
1360     private void sendExpirationTimerUpdate(RecipientId recipientId) throws IOException {
1361         final var messageBuilder = createMessageBuilder().asExpirationUpdate();
1362         sendHelper.sendMessage(messageBuilder, Set.of(recipientId));
1363     }
1364
1365     /**
1366      * Change the expiration timer for a contact
1367      */
1368     public void setExpirationTimer(
1369             String number, int messageExpirationTimer
1370     ) throws IOException, InvalidNumberException {
1371         var recipientId = canonicalizeAndResolveRecipient(number);
1372         setExpirationTimer(recipientId, messageExpirationTimer);
1373         sendExpirationTimerUpdate(recipientId);
1374     }
1375
1376     /**
1377      * Change the expiration timer for a group
1378      */
1379     private void setExpirationTimer(
1380             GroupInfoV1 groupInfoV1, int messageExpirationTimer
1381     ) throws NotAGroupMemberException, GroupNotFoundException, IOException {
1382         groupInfoV1.messageExpirationTime = messageExpirationTimer;
1383         account.getGroupStore().updateGroup(groupInfoV1);
1384         sendExpirationTimerUpdate(groupInfoV1.getGroupId());
1385     }
1386
1387     private void sendExpirationTimerUpdate(GroupIdV1 groupId) throws IOException, NotAGroupMemberException, GroupNotFoundException {
1388         final var messageBuilder = createMessageBuilder().asExpirationUpdate();
1389         sendHelper.sendAsGroupMessage(messageBuilder, groupId);
1390     }
1391
1392     /**
1393      * Upload the sticker pack from path.
1394      *
1395      * @param path Path can be a path to a manifest.json file or to a zip file that contains a manifest.json file
1396      * @return if successful, returns the URL to install the sticker pack in the signal app
1397      */
1398     public String uploadStickerPack(File path) throws IOException, StickerPackInvalidException {
1399         var manifest = StickerUtils.getSignalServiceStickerManifestUpload(path);
1400
1401         var messageSender = dependencies.getMessageSender();
1402
1403         var packKey = KeyUtils.createStickerUploadKey();
1404         var packIdString = messageSender.uploadStickerManifest(manifest, packKey);
1405         var packId = StickerPackId.deserialize(Hex.fromStringCondensed(packIdString));
1406
1407         var sticker = new Sticker(packId, packKey);
1408         account.getStickerStore().updateSticker(sticker);
1409
1410         try {
1411             return new URI("https",
1412                     "signal.art",
1413                     "/addstickers/",
1414                     "pack_id="
1415                             + URLEncoder.encode(Hex.toStringCondensed(packId.serialize()), StandardCharsets.UTF_8)
1416                             + "&pack_key="
1417                             + URLEncoder.encode(Hex.toStringCondensed(packKey), StandardCharsets.UTF_8)).toString();
1418         } catch (URISyntaxException e) {
1419             throw new AssertionError(e);
1420         }
1421     }
1422
1423     public void requestAllSyncData() throws IOException {
1424         requestSyncGroups();
1425         requestSyncContacts();
1426         requestSyncBlocked();
1427         requestSyncConfiguration();
1428         requestSyncKeys();
1429     }
1430
1431     private void requestSyncGroups() throws IOException {
1432         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1433                 .setType(SignalServiceProtos.SyncMessage.Request.Type.GROUPS)
1434                 .build();
1435         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1436         sendHelper.sendSyncMessage(message);
1437     }
1438
1439     private void requestSyncContacts() throws IOException {
1440         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1441                 .setType(SignalServiceProtos.SyncMessage.Request.Type.CONTACTS)
1442                 .build();
1443         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1444         sendHelper.sendSyncMessage(message);
1445     }
1446
1447     private void requestSyncBlocked() throws IOException {
1448         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1449                 .setType(SignalServiceProtos.SyncMessage.Request.Type.BLOCKED)
1450                 .build();
1451         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1452         sendHelper.sendSyncMessage(message);
1453     }
1454
1455     private void requestSyncConfiguration() throws IOException {
1456         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1457                 .setType(SignalServiceProtos.SyncMessage.Request.Type.CONFIGURATION)
1458                 .build();
1459         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1460         sendHelper.sendSyncMessage(message);
1461     }
1462
1463     private void requestSyncKeys() throws IOException {
1464         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1465                 .setType(SignalServiceProtos.SyncMessage.Request.Type.KEYS)
1466                 .build();
1467         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1468         sendHelper.sendSyncMessage(message);
1469     }
1470
1471     private byte[] getSenderCertificate() {
1472         byte[] certificate;
1473         try {
1474             if (account.isPhoneNumberShared()) {
1475                 certificate = dependencies.getAccountManager().getSenderCertificate();
1476             } else {
1477                 certificate = dependencies.getAccountManager().getSenderCertificateForPhoneNumberPrivacy();
1478             }
1479         } catch (IOException e) {
1480             logger.warn("Failed to get sender certificate, ignoring: {}", e.getMessage());
1481             return null;
1482         }
1483         // TODO cache for a day
1484         return certificate;
1485     }
1486
1487     private Set<RecipientId> getRecipientIds(Collection<String> numbers) throws InvalidNumberException {
1488         final var signalServiceAddresses = new HashSet<SignalServiceAddress>(numbers.size());
1489         final var addressesMissingUuid = new HashSet<SignalServiceAddress>();
1490
1491         for (var number : numbers) {
1492             final var resolvedAddress = resolveSignalServiceAddress(canonicalizeAndResolveRecipient(number));
1493             if (resolvedAddress.getUuid().isPresent()) {
1494                 signalServiceAddresses.add(resolvedAddress);
1495             } else {
1496                 addressesMissingUuid.add(resolvedAddress);
1497             }
1498         }
1499
1500         final var numbersMissingUuid = addressesMissingUuid.stream()
1501                 .map(a -> a.getNumber().get())
1502                 .collect(Collectors.toSet());
1503         Map<String, UUID> registeredUsers;
1504         try {
1505             registeredUsers = getRegisteredUsers(numbersMissingUuid);
1506         } catch (IOException e) {
1507             logger.warn("Failed to resolve uuids from server, ignoring: {}", e.getMessage());
1508             registeredUsers = Map.of();
1509         }
1510
1511         for (var address : addressesMissingUuid) {
1512             final var number = address.getNumber().get();
1513             if (registeredUsers.containsKey(number)) {
1514                 final var newAddress = resolveSignalServiceAddress(resolveRecipientTrusted(new SignalServiceAddress(
1515                         registeredUsers.get(number),
1516                         number)));
1517                 signalServiceAddresses.add(newAddress);
1518             } else {
1519                 signalServiceAddresses.add(address);
1520             }
1521         }
1522
1523         return signalServiceAddresses.stream().map(this::resolveRecipient).collect(Collectors.toSet());
1524     }
1525
1526     private RecipientId refreshRegisteredUser(RecipientId recipientId) throws IOException {
1527         final var address = resolveSignalServiceAddress(recipientId);
1528         if (!address.getNumber().isPresent()) {
1529             return recipientId;
1530         }
1531         final var number = address.getNumber().get();
1532         final var uuidMap = getRegisteredUsers(Set.of(number));
1533         return resolveRecipientTrusted(new SignalServiceAddress(uuidMap.getOrDefault(number, null), number));
1534     }
1535
1536     private Map<String, UUID> getRegisteredUsers(final Set<String> numbers) throws IOException {
1537         try {
1538             return dependencies.getAccountManager()
1539                     .getRegisteredUsers(ServiceConfig.getIasKeyStore(),
1540                             numbers,
1541                             serviceEnvironmentConfig.getCdsMrenclave());
1542         } catch (Quote.InvalidQuoteFormatException | UnauthenticatedQuoteException | SignatureException | UnauthenticatedResponseException | InvalidKeyException e) {
1543             throw new IOException(e);
1544         }
1545     }
1546
1547     public void sendTypingMessage(
1548             TypingAction action, Set<String> recipients
1549     ) throws IOException, UntrustedIdentityException, InvalidNumberException {
1550         final var timestamp = System.currentTimeMillis();
1551         var message = new SignalServiceTypingMessage(action.toSignalService(), timestamp, Optional.absent());
1552         sendHelper.sendTypingMessage(message, getRecipientIds(recipients));
1553     }
1554
1555     public void sendGroupTypingMessage(
1556             TypingAction action, GroupId groupId
1557     ) throws IOException, NotAGroupMemberException, GroupNotFoundException {
1558         final var timestamp = System.currentTimeMillis();
1559         final var message = new SignalServiceTypingMessage(action.toSignalService(),
1560                 timestamp,
1561                 Optional.of(groupId.serialize()));
1562         sendHelper.sendGroupTypingMessage(message, groupId);
1563     }
1564
1565     private SignalServiceDataMessage.Builder createMessageBuilder() {
1566         final var timestamp = System.currentTimeMillis();
1567
1568         var messageBuilder = SignalServiceDataMessage.newBuilder();
1569         messageBuilder.withTimestamp(timestamp);
1570         return messageBuilder;
1571     }
1572
1573     private SignalServiceContent decryptMessage(SignalServiceEnvelope envelope) throws InvalidMetadataMessageException, ProtocolInvalidMessageException, ProtocolDuplicateMessageException, ProtocolLegacyMessageException, ProtocolInvalidKeyIdException, InvalidMetadataVersionException, ProtocolInvalidVersionException, ProtocolNoSessionException, ProtocolInvalidKeyException, SelfSendException, UnsupportedDataMessageException, ProtocolUntrustedIdentityException, InvalidMessageStructureException {
1574         return dependencies.getCipher().decrypt(envelope);
1575     }
1576
1577     private void handleEndSession(RecipientId recipientId) {
1578         account.getSessionStore().deleteAllSessions(recipientId);
1579     }
1580
1581     private List<HandleAction> handleSignalServiceDataMessage(
1582             SignalServiceDataMessage message,
1583             boolean isSync,
1584             SignalServiceAddress source,
1585             SignalServiceAddress destination,
1586             boolean ignoreAttachments
1587     ) {
1588         var actions = new ArrayList<HandleAction>();
1589         if (message.getGroupContext().isPresent()) {
1590             if (message.getGroupContext().get().getGroupV1().isPresent()) {
1591                 var groupInfo = message.getGroupContext().get().getGroupV1().get();
1592                 var groupId = GroupId.v1(groupInfo.getGroupId());
1593                 var group = getGroup(groupId);
1594                 if (group == null || group instanceof GroupInfoV1) {
1595                     var groupV1 = (GroupInfoV1) group;
1596                     switch (groupInfo.getType()) {
1597                         case UPDATE: {
1598                             if (groupV1 == null) {
1599                                 groupV1 = new GroupInfoV1(groupId);
1600                             }
1601
1602                             if (groupInfo.getAvatar().isPresent()) {
1603                                 var avatar = groupInfo.getAvatar().get();
1604                                 downloadGroupAvatar(avatar, groupV1.getGroupId());
1605                             }
1606
1607                             if (groupInfo.getName().isPresent()) {
1608                                 groupV1.name = groupInfo.getName().get();
1609                             }
1610
1611                             if (groupInfo.getMembers().isPresent()) {
1612                                 groupV1.addMembers(groupInfo.getMembers()
1613                                         .get()
1614                                         .stream()
1615                                         .map(this::resolveRecipient)
1616                                         .collect(Collectors.toSet()));
1617                             }
1618
1619                             account.getGroupStore().updateGroup(groupV1);
1620                             break;
1621                         }
1622                         case DELIVER:
1623                             if (groupV1 == null && !isSync) {
1624                                 actions.add(new SendGroupInfoRequestAction(source, groupId));
1625                             }
1626                             break;
1627                         case QUIT: {
1628                             if (groupV1 != null) {
1629                                 groupV1.removeMember(resolveRecipient(source));
1630                                 account.getGroupStore().updateGroup(groupV1);
1631                             }
1632                             break;
1633                         }
1634                         case REQUEST_INFO:
1635                             if (groupV1 != null && !isSync) {
1636                                 actions.add(new SendGroupInfoAction(source, groupV1.getGroupId()));
1637                             }
1638                             break;
1639                     }
1640                 } else {
1641                     // Received a group v1 message for a v2 group
1642                 }
1643             }
1644             if (message.getGroupContext().get().getGroupV2().isPresent()) {
1645                 final var groupContext = message.getGroupContext().get().getGroupV2().get();
1646                 final var groupMasterKey = groupContext.getMasterKey();
1647
1648                 getOrMigrateGroup(groupMasterKey,
1649                         groupContext.getRevision(),
1650                         groupContext.hasSignedGroupChange() ? groupContext.getSignedGroupChange() : null);
1651             }
1652         }
1653
1654         final var conversationPartnerAddress = isSync ? destination : source;
1655         if (conversationPartnerAddress != null && message.isEndSession()) {
1656             handleEndSession(resolveRecipient(conversationPartnerAddress));
1657         }
1658         if (message.isExpirationUpdate() || message.getBody().isPresent()) {
1659             if (message.getGroupContext().isPresent()) {
1660                 if (message.getGroupContext().get().getGroupV1().isPresent()) {
1661                     var groupInfo = message.getGroupContext().get().getGroupV1().get();
1662                     var group = account.getGroupStore().getOrCreateGroupV1(GroupId.v1(groupInfo.getGroupId()));
1663                     if (group != null) {
1664                         if (group.messageExpirationTime != message.getExpiresInSeconds()) {
1665                             group.messageExpirationTime = message.getExpiresInSeconds();
1666                             account.getGroupStore().updateGroup(group);
1667                         }
1668                     }
1669                 } else if (message.getGroupContext().get().getGroupV2().isPresent()) {
1670                     // disappearing message timer already stored in the DecryptedGroup
1671                 }
1672             } else if (conversationPartnerAddress != null) {
1673                 setExpirationTimer(resolveRecipient(conversationPartnerAddress), message.getExpiresInSeconds());
1674             }
1675         }
1676         if (!ignoreAttachments) {
1677             if (message.getAttachments().isPresent()) {
1678                 for (var attachment : message.getAttachments().get()) {
1679                     downloadAttachment(attachment);
1680                 }
1681             }
1682             if (message.getSharedContacts().isPresent()) {
1683                 for (var contact : message.getSharedContacts().get()) {
1684                     if (contact.getAvatar().isPresent()) {
1685                         downloadAttachment(contact.getAvatar().get().getAttachment());
1686                     }
1687                 }
1688             }
1689         }
1690         if (message.getProfileKey().isPresent() && message.getProfileKey().get().length == 32) {
1691             final ProfileKey profileKey;
1692             try {
1693                 profileKey = new ProfileKey(message.getProfileKey().get());
1694             } catch (InvalidInputException e) {
1695                 throw new AssertionError(e);
1696             }
1697             if (source.matches(account.getSelfAddress())) {
1698                 this.account.setProfileKey(profileKey);
1699             }
1700             this.account.getProfileStore().storeProfileKey(resolveRecipient(source), profileKey);
1701         }
1702         if (message.getPreviews().isPresent()) {
1703             final var previews = message.getPreviews().get();
1704             for (var preview : previews) {
1705                 if (preview.getImage().isPresent()) {
1706                     downloadAttachment(preview.getImage().get());
1707                 }
1708             }
1709         }
1710         if (message.getQuote().isPresent()) {
1711             final var quote = message.getQuote().get();
1712
1713             for (var quotedAttachment : quote.getAttachments()) {
1714                 final var thumbnail = quotedAttachment.getThumbnail();
1715                 if (thumbnail != null) {
1716                     downloadAttachment(thumbnail);
1717                 }
1718             }
1719         }
1720         if (message.getSticker().isPresent()) {
1721             final var messageSticker = message.getSticker().get();
1722             final var stickerPackId = StickerPackId.deserialize(messageSticker.getPackId());
1723             var sticker = account.getStickerStore().getSticker(stickerPackId);
1724             if (sticker == null) {
1725                 sticker = new Sticker(stickerPackId, messageSticker.getPackKey());
1726                 account.getStickerStore().updateSticker(sticker);
1727             }
1728             enqueueJob(new RetrieveStickerPackJob(stickerPackId, messageSticker.getPackKey()));
1729         }
1730         return actions;
1731     }
1732
1733     private GroupInfoV2 getOrMigrateGroup(
1734             final GroupMasterKey groupMasterKey, final int revision, final byte[] signedGroupChange
1735     ) {
1736         final var groupSecretParams = GroupSecretParams.deriveFromMasterKey(groupMasterKey);
1737
1738         var groupId = GroupUtils.getGroupIdV2(groupSecretParams);
1739         var groupInfo = getGroup(groupId);
1740         final GroupInfoV2 groupInfoV2;
1741         if (groupInfo instanceof GroupInfoV1) {
1742             // Received a v2 group message for a v1 group, we need to locally migrate the group
1743             account.getGroupStore().deleteGroupV1(((GroupInfoV1) groupInfo).getGroupId());
1744             groupInfoV2 = new GroupInfoV2(groupId, groupMasterKey);
1745             logger.info("Locally migrated group {} to group v2, id: {}",
1746                     groupInfo.getGroupId().toBase64(),
1747                     groupInfoV2.getGroupId().toBase64());
1748         } else if (groupInfo instanceof GroupInfoV2) {
1749             groupInfoV2 = (GroupInfoV2) groupInfo;
1750         } else {
1751             groupInfoV2 = new GroupInfoV2(groupId, groupMasterKey);
1752         }
1753
1754         if (groupInfoV2.getGroup() == null || groupInfoV2.getGroup().getRevision() < revision) {
1755             DecryptedGroup group = null;
1756             if (signedGroupChange != null
1757                     && groupInfoV2.getGroup() != null
1758                     && groupInfoV2.getGroup().getRevision() + 1 == revision) {
1759                 group = groupV2Helper.getUpdatedDecryptedGroup(groupInfoV2.getGroup(),
1760                         signedGroupChange,
1761                         groupMasterKey);
1762             }
1763             if (group == null) {
1764                 group = groupV2Helper.getDecryptedGroup(groupSecretParams);
1765             }
1766             if (group != null) {
1767                 storeProfileKeysFromMembers(group);
1768                 final var avatar = group.getAvatar();
1769                 if (avatar != null && !avatar.isEmpty()) {
1770                     downloadGroupAvatar(groupId, groupSecretParams, avatar);
1771                 }
1772             }
1773             groupInfoV2.setGroup(group, this::resolveRecipient);
1774             account.getGroupStore().updateGroup(groupInfoV2);
1775         }
1776
1777         return groupInfoV2;
1778     }
1779
1780     private void storeProfileKeysFromMembers(final DecryptedGroup group) {
1781         for (var member : group.getMembersList()) {
1782             final var uuid = UuidUtil.parseOrThrow(member.getUuid().toByteArray());
1783             final var recipientId = account.getRecipientStore().resolveRecipient(uuid);
1784             try {
1785                 account.getProfileStore()
1786                         .storeProfileKey(recipientId, new ProfileKey(member.getProfileKey().toByteArray()));
1787             } catch (InvalidInputException ignored) {
1788             }
1789         }
1790     }
1791
1792     private void retryFailedReceivedMessages(ReceiveMessageHandler handler, boolean ignoreAttachments) {
1793         Set<HandleAction> queuedActions = new HashSet<>();
1794         for (var cachedMessage : account.getMessageCache().getCachedMessages()) {
1795             var actions = retryFailedReceivedMessage(handler, ignoreAttachments, cachedMessage);
1796             if (actions != null) {
1797                 queuedActions.addAll(actions);
1798             }
1799         }
1800         handleQueuedActions(queuedActions);
1801     }
1802
1803     private List<HandleAction> retryFailedReceivedMessage(
1804             final ReceiveMessageHandler handler, final boolean ignoreAttachments, final CachedMessage cachedMessage
1805     ) {
1806         var envelope = cachedMessage.loadEnvelope();
1807         if (envelope == null) {
1808             return null;
1809         }
1810         SignalServiceContent content = null;
1811         List<HandleAction> actions = null;
1812         if (!envelope.isReceipt()) {
1813             try {
1814                 content = decryptMessage(envelope);
1815             } catch (ProtocolUntrustedIdentityException e) {
1816                 if (!envelope.hasSource()) {
1817                     final var identifier = e.getSender();
1818                     final var recipientId = resolveRecipient(identifier);
1819                     try {
1820                         account.getMessageCache().replaceSender(cachedMessage, recipientId);
1821                     } catch (IOException ioException) {
1822                         logger.warn("Failed to move cached message to recipient folder: {}", ioException.getMessage());
1823                     }
1824                 }
1825                 return null;
1826             } catch (Exception er) {
1827                 // All other errors are not recoverable, so delete the cached message
1828                 cachedMessage.delete();
1829                 return null;
1830             }
1831             actions = handleMessage(envelope, content, ignoreAttachments);
1832         }
1833         handler.handleMessage(envelope, content, null);
1834         cachedMessage.delete();
1835         return actions;
1836     }
1837
1838     public void receiveMessages(
1839             long timeout,
1840             TimeUnit unit,
1841             boolean returnOnTimeout,
1842             boolean ignoreAttachments,
1843             ReceiveMessageHandler handler
1844     ) throws IOException {
1845         retryFailedReceivedMessages(handler, ignoreAttachments);
1846
1847         Set<HandleAction> queuedActions = new HashSet<>();
1848
1849         final var signalWebSocket = dependencies.getSignalWebSocket();
1850         signalWebSocket.connect();
1851
1852         var hasCaughtUpWithOldMessages = false;
1853
1854         while (!Thread.interrupted()) {
1855             SignalServiceEnvelope envelope;
1856             SignalServiceContent content = null;
1857             Exception exception = null;
1858             final CachedMessage[] cachedMessage = {null};
1859             account.setLastReceiveTimestamp(System.currentTimeMillis());
1860             logger.debug("Checking for new message from server");
1861             try {
1862                 var result = signalWebSocket.readOrEmpty(unit.toMillis(timeout), envelope1 -> {
1863                     final var recipientId = envelope1.hasSource()
1864                             ? resolveRecipient(envelope1.getSourceIdentifier())
1865                             : null;
1866                     // store message on disk, before acknowledging receipt to the server
1867                     cachedMessage[0] = account.getMessageCache().cacheMessage(envelope1, recipientId);
1868                 });
1869                 logger.debug("New message received from server");
1870                 if (result.isPresent()) {
1871                     envelope = result.get();
1872                 } else {
1873                     // Received indicator that server queue is empty
1874                     hasCaughtUpWithOldMessages = true;
1875
1876                     handleQueuedActions(queuedActions);
1877                     queuedActions.clear();
1878
1879                     // Continue to wait another timeout for new messages
1880                     continue;
1881                 }
1882             } catch (AssertionError e) {
1883                 if (e.getCause() instanceof InterruptedException) {
1884                     Thread.currentThread().interrupt();
1885                     break;
1886                 } else {
1887                     throw e;
1888                 }
1889             } catch (WebSocketUnavailableException e) {
1890                 logger.debug("Pipe unexpectedly unavailable, connecting");
1891                 signalWebSocket.connect();
1892                 continue;
1893             } catch (TimeoutException e) {
1894                 if (returnOnTimeout) return;
1895                 continue;
1896             }
1897
1898             if (envelope.hasSource()) {
1899                 // Store uuid if we don't have it already
1900                 // address/uuid in envelope is sent by server
1901                 resolveRecipientTrusted(envelope.getSourceAddress());
1902             }
1903             if (!envelope.isReceipt()) {
1904                 try {
1905                     content = decryptMessage(envelope);
1906                 } catch (Exception e) {
1907                     exception = e;
1908                 }
1909                 if (!envelope.hasSource() && content != null) {
1910                     // Store uuid if we don't have it already
1911                     // address/uuid is validated by unidentified sender certificate
1912                     resolveRecipientTrusted(content.getSender());
1913                 }
1914                 var actions = handleMessage(envelope, content, ignoreAttachments);
1915                 if (exception instanceof ProtocolInvalidMessageException) {
1916                     final var sender = resolveRecipient(((ProtocolInvalidMessageException) exception).getSender());
1917                     logger.debug("Received invalid message, queuing renew session action.");
1918                     actions.add(new RenewSessionAction(sender));
1919                 }
1920                 if (hasCaughtUpWithOldMessages) {
1921                     for (var action : actions) {
1922                         try {
1923                             action.execute(this);
1924                         } catch (Throwable e) {
1925                             if (e instanceof AssertionError && e.getCause() instanceof InterruptedException) {
1926                                 Thread.currentThread().interrupt();
1927                             }
1928                             logger.warn("Message action failed.", e);
1929                         }
1930                     }
1931                 } else {
1932                     queuedActions.addAll(actions);
1933                 }
1934             }
1935             final var notAllowedToSendToGroup = isNotAllowedToSendToGroup(envelope, content);
1936             if (isMessageBlocked(envelope, content)) {
1937                 logger.info("Ignoring a message from blocked user/group: {}", envelope.getTimestamp());
1938             } else if (notAllowedToSendToGroup) {
1939                 logger.info("Ignoring a group message from an unauthorized sender (no member or admin): {} {}",
1940                         (envelope.hasSource() ? envelope.getSourceAddress() : content.getSender()).getIdentifier(),
1941                         envelope.getTimestamp());
1942             } else {
1943                 handler.handleMessage(envelope, content, exception);
1944             }
1945             if (cachedMessage[0] != null) {
1946                 if (exception instanceof ProtocolUntrustedIdentityException) {
1947                     final var identifier = ((ProtocolUntrustedIdentityException) exception).getSender();
1948                     final var recipientId = resolveRecipient(identifier);
1949                     queuedActions.add(new RetrieveProfileAction(recipientId));
1950                     if (!envelope.hasSource()) {
1951                         try {
1952                             cachedMessage[0] = account.getMessageCache().replaceSender(cachedMessage[0], recipientId);
1953                         } catch (IOException ioException) {
1954                             logger.warn("Failed to move cached message to recipient folder: {}",
1955                                     ioException.getMessage());
1956                         }
1957                     }
1958                 } else {
1959                     cachedMessage[0].delete();
1960                 }
1961             }
1962         }
1963         handleQueuedActions(queuedActions);
1964     }
1965
1966     private void handleQueuedActions(final Set<HandleAction> queuedActions) {
1967         for (var action : queuedActions) {
1968             try {
1969                 action.execute(this);
1970             } catch (Throwable e) {
1971                 if (e instanceof AssertionError && e.getCause() instanceof InterruptedException) {
1972                     Thread.currentThread().interrupt();
1973                 }
1974                 logger.warn("Message action failed.", e);
1975             }
1976         }
1977     }
1978
1979     private boolean isMessageBlocked(
1980             SignalServiceEnvelope envelope, SignalServiceContent content
1981     ) {
1982         SignalServiceAddress source;
1983         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1984             source = envelope.getSourceAddress();
1985         } else if (content != null) {
1986             source = content.getSender();
1987         } else {
1988             return false;
1989         }
1990         final var recipientId = resolveRecipient(source);
1991         if (isContactBlocked(recipientId)) {
1992             return true;
1993         }
1994
1995         if (content != null && content.getDataMessage().isPresent()) {
1996             var message = content.getDataMessage().get();
1997             if (message.getGroupContext().isPresent()) {
1998                 var groupId = GroupUtils.getGroupId(message.getGroupContext().get());
1999                 var group = getGroup(groupId);
2000                 if (group != null && group.isBlocked()) {
2001                     return true;
2002                 }
2003             }
2004         }
2005         return false;
2006     }
2007
2008     public boolean isContactBlocked(final String identifier) throws InvalidNumberException {
2009         final var recipientId = canonicalizeAndResolveRecipient(identifier);
2010         return isContactBlocked(recipientId);
2011     }
2012
2013     private boolean isContactBlocked(final RecipientId recipientId) {
2014         var sourceContact = account.getContactStore().getContact(recipientId);
2015         return sourceContact != null && sourceContact.isBlocked();
2016     }
2017
2018     private boolean isNotAllowedToSendToGroup(
2019             SignalServiceEnvelope envelope, SignalServiceContent content
2020     ) {
2021         SignalServiceAddress source;
2022         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
2023             source = envelope.getSourceAddress();
2024         } else if (content != null) {
2025             source = content.getSender();
2026         } else {
2027             return false;
2028         }
2029
2030         if (content == null || !content.getDataMessage().isPresent()) {
2031             return false;
2032         }
2033
2034         var message = content.getDataMessage().get();
2035         if (!message.getGroupContext().isPresent()) {
2036             return false;
2037         }
2038
2039         if (message.getGroupContext().get().getGroupV1().isPresent()) {
2040             var groupInfo = message.getGroupContext().get().getGroupV1().get();
2041             if (groupInfo.getType() == SignalServiceGroup.Type.QUIT) {
2042                 return false;
2043             }
2044         }
2045
2046         var groupId = GroupUtils.getGroupId(message.getGroupContext().get());
2047         var group = getGroup(groupId);
2048         if (group == null) {
2049             return false;
2050         }
2051
2052         final var recipientId = resolveRecipient(source);
2053         return !group.isMember(recipientId) || (
2054                 group.isAnnouncementGroup() && !group.isAdmin(recipientId)
2055         );
2056     }
2057
2058     private List<HandleAction> handleMessage(
2059             SignalServiceEnvelope envelope, SignalServiceContent content, boolean ignoreAttachments
2060     ) {
2061         var actions = new ArrayList<HandleAction>();
2062         if (content != null) {
2063             final SignalServiceAddress sender;
2064             if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
2065                 sender = envelope.getSourceAddress();
2066             } else {
2067                 sender = content.getSender();
2068             }
2069
2070             if (content.getDataMessage().isPresent()) {
2071                 var message = content.getDataMessage().get();
2072
2073                 if (content.isNeedsReceipt()) {
2074                     actions.add(new SendReceiptAction(sender, message.getTimestamp()));
2075                 }
2076
2077                 actions.addAll(handleSignalServiceDataMessage(message,
2078                         false,
2079                         sender,
2080                         account.getSelfAddress(),
2081                         ignoreAttachments));
2082             }
2083             if (content.getSyncMessage().isPresent()) {
2084                 account.setMultiDevice(true);
2085                 var syncMessage = content.getSyncMessage().get();
2086                 if (syncMessage.getSent().isPresent()) {
2087                     var message = syncMessage.getSent().get();
2088                     final var destination = message.getDestination().orNull();
2089                     actions.addAll(handleSignalServiceDataMessage(message.getMessage(),
2090                             true,
2091                             sender,
2092                             destination,
2093                             ignoreAttachments));
2094                 }
2095                 if (syncMessage.getRequest().isPresent() && account.isMasterDevice()) {
2096                     var rm = syncMessage.getRequest().get();
2097                     if (rm.isContactsRequest()) {
2098                         actions.add(SendSyncContactsAction.create());
2099                     }
2100                     if (rm.isGroupsRequest()) {
2101                         actions.add(SendSyncGroupsAction.create());
2102                     }
2103                     if (rm.isBlockedListRequest()) {
2104                         actions.add(SendSyncBlockedListAction.create());
2105                     }
2106                     // TODO Handle rm.isConfigurationRequest(); rm.isKeysRequest();
2107                 }
2108                 if (syncMessage.getGroups().isPresent()) {
2109                     File tmpFile = null;
2110                     try {
2111                         tmpFile = IOUtils.createTempFile();
2112                         final var groupsMessage = syncMessage.getGroups().get();
2113                         try (var attachmentAsStream = retrieveAttachmentAsStream(groupsMessage.asPointer(), tmpFile)) {
2114                             var s = new DeviceGroupsInputStream(attachmentAsStream);
2115                             DeviceGroup g;
2116                             while (true) {
2117                                 try {
2118                                     g = s.read();
2119                                 } catch (IOException e) {
2120                                     logger.warn("Sync groups contained invalid group, ignoring: {}", e.getMessage());
2121                                     continue;
2122                                 }
2123                                 if (g == null) {
2124                                     break;
2125                                 }
2126                                 var syncGroup = account.getGroupStore().getOrCreateGroupV1(GroupId.v1(g.getId()));
2127                                 if (syncGroup != null) {
2128                                     if (g.getName().isPresent()) {
2129                                         syncGroup.name = g.getName().get();
2130                                     }
2131                                     syncGroup.addMembers(g.getMembers()
2132                                             .stream()
2133                                             .map(this::resolveRecipient)
2134                                             .collect(Collectors.toSet()));
2135                                     if (!g.isActive()) {
2136                                         syncGroup.removeMember(account.getSelfRecipientId());
2137                                     } else {
2138                                         // Add ourself to the member set as it's marked as active
2139                                         syncGroup.addMembers(List.of(account.getSelfRecipientId()));
2140                                     }
2141                                     syncGroup.blocked = g.isBlocked();
2142                                     if (g.getColor().isPresent()) {
2143                                         syncGroup.color = g.getColor().get();
2144                                     }
2145
2146                                     if (g.getAvatar().isPresent()) {
2147                                         downloadGroupAvatar(g.getAvatar().get(), syncGroup.getGroupId());
2148                                     }
2149                                     syncGroup.archived = g.isArchived();
2150                                     account.getGroupStore().updateGroup(syncGroup);
2151                                 }
2152                             }
2153                         }
2154                     } catch (Exception e) {
2155                         logger.warn("Failed to handle received sync groups “{}”, ignoring: {}",
2156                                 tmpFile,
2157                                 e.getMessage());
2158                     } finally {
2159                         if (tmpFile != null) {
2160                             try {
2161                                 Files.delete(tmpFile.toPath());
2162                             } catch (IOException e) {
2163                                 logger.warn("Failed to delete received groups temp file “{}”, ignoring: {}",
2164                                         tmpFile,
2165                                         e.getMessage());
2166                             }
2167                         }
2168                     }
2169                 }
2170                 if (syncMessage.getBlockedList().isPresent()) {
2171                     final var blockedListMessage = syncMessage.getBlockedList().get();
2172                     for (var address : blockedListMessage.getAddresses()) {
2173                         setContactBlocked(resolveRecipient(address), true);
2174                     }
2175                     for (var groupId : blockedListMessage.getGroupIds()
2176                             .stream()
2177                             .map(GroupId::unknownVersion)
2178                             .collect(Collectors.toSet())) {
2179                         try {
2180                             setGroupBlocked(groupId, true);
2181                         } catch (GroupNotFoundException e) {
2182                             logger.warn("BlockedListMessage contained groupID that was not found in GroupStore: {}",
2183                                     groupId.toBase64());
2184                         }
2185                     }
2186                 }
2187                 if (syncMessage.getContacts().isPresent()) {
2188                     File tmpFile = null;
2189                     try {
2190                         tmpFile = IOUtils.createTempFile();
2191                         final var contactsMessage = syncMessage.getContacts().get();
2192                         try (var attachmentAsStream = retrieveAttachmentAsStream(contactsMessage.getContactsStream()
2193                                 .asPointer(), tmpFile)) {
2194                             var s = new DeviceContactsInputStream(attachmentAsStream);
2195                             DeviceContact c;
2196                             while (true) {
2197                                 try {
2198                                     c = s.read();
2199                                 } catch (IOException e) {
2200                                     logger.warn("Sync contacts contained invalid contact, ignoring: {}",
2201                                             e.getMessage());
2202                                     continue;
2203                                 }
2204                                 if (c == null) {
2205                                     break;
2206                                 }
2207                                 if (c.getAddress().matches(account.getSelfAddress()) && c.getProfileKey().isPresent()) {
2208                                     account.setProfileKey(c.getProfileKey().get());
2209                                 }
2210                                 final var recipientId = resolveRecipientTrusted(c.getAddress());
2211                                 var contact = account.getContactStore().getContact(recipientId);
2212                                 final var builder = contact == null
2213                                         ? Contact.newBuilder()
2214                                         : Contact.newBuilder(contact);
2215                                 if (c.getName().isPresent()) {
2216                                     builder.withName(c.getName().get());
2217                                 }
2218                                 if (c.getColor().isPresent()) {
2219                                     builder.withColor(c.getColor().get());
2220                                 }
2221                                 if (c.getProfileKey().isPresent()) {
2222                                     account.getProfileStore().storeProfileKey(recipientId, c.getProfileKey().get());
2223                                 }
2224                                 if (c.getVerified().isPresent()) {
2225                                     final var verifiedMessage = c.getVerified().get();
2226                                     account.getIdentityKeyStore()
2227                                             .setIdentityTrustLevel(resolveRecipientTrusted(verifiedMessage.getDestination()),
2228                                                     verifiedMessage.getIdentityKey(),
2229                                                     TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
2230                                 }
2231                                 if (c.getExpirationTimer().isPresent()) {
2232                                     builder.withMessageExpirationTime(c.getExpirationTimer().get());
2233                                 }
2234                                 builder.withBlocked(c.isBlocked());
2235                                 builder.withArchived(c.isArchived());
2236                                 account.getContactStore().storeContact(recipientId, builder.build());
2237
2238                                 if (c.getAvatar().isPresent()) {
2239                                     downloadContactAvatar(c.getAvatar().get(), c.getAddress());
2240                                 }
2241                             }
2242                         }
2243                     } catch (Exception e) {
2244                         logger.warn("Failed to handle received sync contacts “{}”, ignoring: {}",
2245                                 tmpFile,
2246                                 e.getMessage());
2247                     } finally {
2248                         if (tmpFile != null) {
2249                             try {
2250                                 Files.delete(tmpFile.toPath());
2251                             } catch (IOException e) {
2252                                 logger.warn("Failed to delete received contacts temp file “{}”, ignoring: {}",
2253                                         tmpFile,
2254                                         e.getMessage());
2255                             }
2256                         }
2257                     }
2258                 }
2259                 if (syncMessage.getVerified().isPresent()) {
2260                     final var verifiedMessage = syncMessage.getVerified().get();
2261                     account.getIdentityKeyStore()
2262                             .setIdentityTrustLevel(resolveRecipientTrusted(verifiedMessage.getDestination()),
2263                                     verifiedMessage.getIdentityKey(),
2264                                     TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
2265                 }
2266                 if (syncMessage.getStickerPackOperations().isPresent()) {
2267                     final var stickerPackOperationMessages = syncMessage.getStickerPackOperations().get();
2268                     for (var m : stickerPackOperationMessages) {
2269                         if (!m.getPackId().isPresent()) {
2270                             continue;
2271                         }
2272                         final var stickerPackId = StickerPackId.deserialize(m.getPackId().get());
2273                         final var installed = !m.getType().isPresent()
2274                                 || m.getType().get() == StickerPackOperationMessage.Type.INSTALL;
2275
2276                         var sticker = account.getStickerStore().getSticker(stickerPackId);
2277                         if (m.getPackKey().isPresent()) {
2278                             if (sticker == null) {
2279                                 sticker = new Sticker(stickerPackId, m.getPackKey().get());
2280                             }
2281                             if (installed) {
2282                                 enqueueJob(new RetrieveStickerPackJob(stickerPackId, m.getPackKey().get()));
2283                             }
2284                         }
2285
2286                         if (sticker != null) {
2287                             sticker.setInstalled(installed);
2288                             account.getStickerStore().updateSticker(sticker);
2289                         }
2290                     }
2291                 }
2292                 if (syncMessage.getFetchType().isPresent()) {
2293                     switch (syncMessage.getFetchType().get()) {
2294                         case LOCAL_PROFILE:
2295                             getRecipientProfile(account.getSelfRecipientId(), true);
2296                         case STORAGE_MANIFEST:
2297                             // TODO
2298                     }
2299                 }
2300                 if (syncMessage.getKeys().isPresent()) {
2301                     final var keysMessage = syncMessage.getKeys().get();
2302                     if (keysMessage.getStorageService().isPresent()) {
2303                         final var storageKey = keysMessage.getStorageService().get();
2304                         account.setStorageKey(storageKey);
2305                     }
2306                 }
2307                 if (syncMessage.getConfiguration().isPresent()) {
2308                     // TODO
2309                 }
2310             }
2311         }
2312         return actions;
2313     }
2314
2315     private void downloadContactAvatar(SignalServiceAttachment avatar, SignalServiceAddress address) {
2316         try {
2317             avatarStore.storeContactAvatar(address, outputStream -> retrieveAttachment(avatar, outputStream));
2318         } catch (IOException e) {
2319             logger.warn("Failed to download avatar for contact {}, ignoring: {}", address, e.getMessage());
2320         }
2321     }
2322
2323     private void downloadGroupAvatar(SignalServiceAttachment avatar, GroupId groupId) {
2324         try {
2325             avatarStore.storeGroupAvatar(groupId, outputStream -> retrieveAttachment(avatar, outputStream));
2326         } catch (IOException e) {
2327             logger.warn("Failed to download avatar for group {}, ignoring: {}", groupId.toBase64(), e.getMessage());
2328         }
2329     }
2330
2331     private void downloadGroupAvatar(GroupId groupId, GroupSecretParams groupSecretParams, String cdnKey) {
2332         try {
2333             avatarStore.storeGroupAvatar(groupId,
2334                     outputStream -> retrieveGroupV2Avatar(groupSecretParams, cdnKey, outputStream));
2335         } catch (IOException e) {
2336             logger.warn("Failed to download avatar for group {}, ignoring: {}", groupId.toBase64(), e.getMessage());
2337         }
2338     }
2339
2340     private void downloadProfileAvatar(
2341             SignalServiceAddress address, String avatarPath, ProfileKey profileKey
2342     ) {
2343         try {
2344             avatarStore.storeProfileAvatar(address,
2345                     outputStream -> retrieveProfileAvatar(avatarPath, profileKey, outputStream));
2346         } catch (Throwable e) {
2347             if (e instanceof AssertionError && e.getCause() instanceof InterruptedException) {
2348                 Thread.currentThread().interrupt();
2349             }
2350             logger.warn("Failed to download profile avatar, ignoring: {}", e.getMessage());
2351         }
2352     }
2353
2354     public File getAttachmentFile(SignalServiceAttachmentRemoteId attachmentId) {
2355         return attachmentStore.getAttachmentFile(attachmentId);
2356     }
2357
2358     private void downloadAttachment(final SignalServiceAttachment attachment) {
2359         if (!attachment.isPointer()) {
2360             logger.warn("Invalid state, can't store an attachment stream.");
2361         }
2362
2363         var pointer = attachment.asPointer();
2364         if (pointer.getPreview().isPresent()) {
2365             final var preview = pointer.getPreview().get();
2366             try {
2367                 attachmentStore.storeAttachmentPreview(pointer.getRemoteId(),
2368                         outputStream -> outputStream.write(preview, 0, preview.length));
2369             } catch (IOException e) {
2370                 logger.warn("Failed to download attachment preview, ignoring: {}", e.getMessage());
2371             }
2372         }
2373
2374         try {
2375             attachmentStore.storeAttachment(pointer.getRemoteId(),
2376                     outputStream -> retrieveAttachmentPointer(pointer, outputStream));
2377         } catch (IOException e) {
2378             logger.warn("Failed to download attachment ({}), ignoring: {}", pointer.getRemoteId(), e.getMessage());
2379         }
2380     }
2381
2382     private void retrieveGroupV2Avatar(
2383             GroupSecretParams groupSecretParams, String cdnKey, OutputStream outputStream
2384     ) throws IOException {
2385         var groupOperations = dependencies.getGroupsV2Operations().forGroup(groupSecretParams);
2386
2387         var tmpFile = IOUtils.createTempFile();
2388         try (InputStream input = dependencies.getMessageReceiver()
2389                 .retrieveGroupsV2ProfileAvatar(cdnKey, tmpFile, ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
2390             var encryptedData = IOUtils.readFully(input);
2391
2392             var decryptedData = groupOperations.decryptAvatar(encryptedData);
2393             outputStream.write(decryptedData);
2394         } finally {
2395             try {
2396                 Files.delete(tmpFile.toPath());
2397             } catch (IOException e) {
2398                 logger.warn("Failed to delete received group avatar temp file “{}”, ignoring: {}",
2399                         tmpFile,
2400                         e.getMessage());
2401             }
2402         }
2403     }
2404
2405     private void retrieveProfileAvatar(
2406             String avatarPath, ProfileKey profileKey, OutputStream outputStream
2407     ) throws IOException {
2408         var tmpFile = IOUtils.createTempFile();
2409         try (var input = dependencies.getMessageReceiver()
2410                 .retrieveProfileAvatar(avatarPath,
2411                         tmpFile,
2412                         profileKey,
2413                         ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
2414             // Use larger buffer size to prevent AssertionError: Need: 12272 but only have: 8192 ...
2415             IOUtils.copyStream(input, outputStream, (int) ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE);
2416         } finally {
2417             try {
2418                 Files.delete(tmpFile.toPath());
2419             } catch (IOException e) {
2420                 logger.warn("Failed to delete received profile avatar temp file “{}”, ignoring: {}",
2421                         tmpFile,
2422                         e.getMessage());
2423             }
2424         }
2425     }
2426
2427     private void retrieveAttachment(
2428             final SignalServiceAttachment attachment, final OutputStream outputStream
2429     ) throws IOException {
2430         if (attachment.isPointer()) {
2431             var pointer = attachment.asPointer();
2432             retrieveAttachmentPointer(pointer, outputStream);
2433         } else {
2434             var stream = attachment.asStream();
2435             IOUtils.copyStream(stream.getInputStream(), outputStream);
2436         }
2437     }
2438
2439     private void retrieveAttachmentPointer(
2440             SignalServiceAttachmentPointer pointer, OutputStream outputStream
2441     ) throws IOException {
2442         var tmpFile = IOUtils.createTempFile();
2443         try (var input = retrieveAttachmentAsStream(pointer, tmpFile)) {
2444             IOUtils.copyStream(input, outputStream);
2445         } catch (MissingConfigurationException | InvalidMessageException e) {
2446             throw new IOException(e);
2447         } finally {
2448             try {
2449                 Files.delete(tmpFile.toPath());
2450             } catch (IOException e) {
2451                 logger.warn("Failed to delete received attachment temp file “{}”, ignoring: {}",
2452                         tmpFile,
2453                         e.getMessage());
2454             }
2455         }
2456     }
2457
2458     private InputStream retrieveAttachmentAsStream(
2459             SignalServiceAttachmentPointer pointer, File tmpFile
2460     ) throws IOException, InvalidMessageException, MissingConfigurationException {
2461         return dependencies.getMessageReceiver()
2462                 .retrieveAttachment(pointer, tmpFile, ServiceConfig.MAX_ATTACHMENT_SIZE);
2463     }
2464
2465     void sendGroups() throws IOException {
2466         var groupsFile = IOUtils.createTempFile();
2467
2468         try {
2469             try (OutputStream fos = new FileOutputStream(groupsFile)) {
2470                 var out = new DeviceGroupsOutputStream(fos);
2471                 for (var record : getGroups()) {
2472                     if (record instanceof GroupInfoV1) {
2473                         var groupInfo = (GroupInfoV1) record;
2474                         out.write(new DeviceGroup(groupInfo.getGroupId().serialize(),
2475                                 Optional.fromNullable(groupInfo.name),
2476                                 groupInfo.getMembers()
2477                                         .stream()
2478                                         .map(this::resolveSignalServiceAddress)
2479                                         .collect(Collectors.toList()),
2480                                 createGroupAvatarAttachment(groupInfo.getGroupId()),
2481                                 groupInfo.isMember(account.getSelfRecipientId()),
2482                                 Optional.of(groupInfo.messageExpirationTime),
2483                                 Optional.fromNullable(groupInfo.color),
2484                                 groupInfo.blocked,
2485                                 Optional.absent(),
2486                                 groupInfo.archived));
2487                     }
2488                 }
2489             }
2490
2491             if (groupsFile.exists() && groupsFile.length() > 0) {
2492                 try (var groupsFileStream = new FileInputStream(groupsFile)) {
2493                     var attachmentStream = SignalServiceAttachment.newStreamBuilder()
2494                             .withStream(groupsFileStream)
2495                             .withContentType("application/octet-stream")
2496                             .withLength(groupsFile.length())
2497                             .build();
2498
2499                     sendHelper.sendSyncMessage(SignalServiceSyncMessage.forGroups(attachmentStream));
2500                 }
2501             }
2502         } finally {
2503             try {
2504                 Files.delete(groupsFile.toPath());
2505             } catch (IOException e) {
2506                 logger.warn("Failed to delete groups temp file “{}”, ignoring: {}", groupsFile, e.getMessage());
2507             }
2508         }
2509     }
2510
2511     public void sendContacts() throws IOException {
2512         var contactsFile = IOUtils.createTempFile();
2513
2514         try {
2515             try (OutputStream fos = new FileOutputStream(contactsFile)) {
2516                 var out = new DeviceContactsOutputStream(fos);
2517                 for (var contactPair : account.getContactStore().getContacts()) {
2518                     final var recipientId = contactPair.first();
2519                     final var contact = contactPair.second();
2520                     final var address = resolveSignalServiceAddress(recipientId);
2521
2522                     var currentIdentity = account.getIdentityKeyStore().getIdentity(recipientId);
2523                     VerifiedMessage verifiedMessage = null;
2524                     if (currentIdentity != null) {
2525                         verifiedMessage = new VerifiedMessage(address,
2526                                 currentIdentity.getIdentityKey(),
2527                                 currentIdentity.getTrustLevel().toVerifiedState(),
2528                                 currentIdentity.getDateAdded().getTime());
2529                     }
2530
2531                     var profileKey = account.getProfileStore().getProfileKey(recipientId);
2532                     out.write(new DeviceContact(address,
2533                             Optional.fromNullable(contact.getName()),
2534                             createContactAvatarAttachment(address),
2535                             Optional.fromNullable(contact.getColor()),
2536                             Optional.fromNullable(verifiedMessage),
2537                             Optional.fromNullable(profileKey),
2538                             contact.isBlocked(),
2539                             Optional.of(contact.getMessageExpirationTime()),
2540                             Optional.absent(),
2541                             contact.isArchived()));
2542                 }
2543
2544                 if (account.getProfileKey() != null) {
2545                     // Send our own profile key as well
2546                     out.write(new DeviceContact(account.getSelfAddress(),
2547                             Optional.absent(),
2548                             Optional.absent(),
2549                             Optional.absent(),
2550                             Optional.absent(),
2551                             Optional.of(account.getProfileKey()),
2552                             false,
2553                             Optional.absent(),
2554                             Optional.absent(),
2555                             false));
2556                 }
2557             }
2558
2559             if (contactsFile.exists() && contactsFile.length() > 0) {
2560                 try (var contactsFileStream = new FileInputStream(contactsFile)) {
2561                     var attachmentStream = SignalServiceAttachment.newStreamBuilder()
2562                             .withStream(contactsFileStream)
2563                             .withContentType("application/octet-stream")
2564                             .withLength(contactsFile.length())
2565                             .build();
2566
2567                     sendHelper.sendSyncMessage(SignalServiceSyncMessage.forContacts(new ContactsMessage(attachmentStream,
2568                             true)));
2569                 }
2570             }
2571         } finally {
2572             try {
2573                 Files.delete(contactsFile.toPath());
2574             } catch (IOException e) {
2575                 logger.warn("Failed to delete contacts temp file “{}”, ignoring: {}", contactsFile, e.getMessage());
2576             }
2577         }
2578     }
2579
2580     void sendBlockedList() throws IOException {
2581         var addresses = new ArrayList<SignalServiceAddress>();
2582         for (var record : account.getContactStore().getContacts()) {
2583             if (record.second().isBlocked()) {
2584                 addresses.add(resolveSignalServiceAddress(record.first()));
2585             }
2586         }
2587         var groupIds = new ArrayList<byte[]>();
2588         for (var record : getGroups()) {
2589             if (record.isBlocked()) {
2590                 groupIds.add(record.getGroupId().serialize());
2591             }
2592         }
2593         sendHelper.sendSyncMessage(SignalServiceSyncMessage.forBlocked(new BlockedListMessage(addresses, groupIds)));
2594     }
2595
2596     private void sendVerifiedMessage(
2597             SignalServiceAddress destination, IdentityKey identityKey, TrustLevel trustLevel
2598     ) throws IOException {
2599         var verifiedMessage = new VerifiedMessage(destination,
2600                 identityKey,
2601                 trustLevel.toVerifiedState(),
2602                 System.currentTimeMillis());
2603         sendHelper.sendSyncMessage(SignalServiceSyncMessage.forVerified(verifiedMessage));
2604     }
2605
2606     public List<Pair<RecipientId, Contact>> getContacts() {
2607         return account.getContactStore().getContacts();
2608     }
2609
2610     public String getContactOrProfileName(String number) throws InvalidNumberException {
2611         final var recipientId = canonicalizeAndResolveRecipient(number);
2612         final var recipient = account.getRecipientStore().getRecipient(recipientId);
2613         if (recipient == null) {
2614             return null;
2615         }
2616
2617         if (recipient.getContact() != null && !Util.isEmpty(recipient.getContact().getName())) {
2618             return recipient.getContact().getName();
2619         }
2620
2621         if (recipient.getProfile() != null && recipient.getProfile() != null) {
2622             return recipient.getProfile().getDisplayName();
2623         }
2624
2625         return null;
2626     }
2627
2628     public GroupInfo getGroup(GroupId groupId) {
2629         return getGroup(groupId, false);
2630     }
2631
2632     public GroupInfo getGroup(GroupId groupId, boolean forceUpdate) {
2633         final var group = account.getGroupStore().getGroup(groupId);
2634         if (group instanceof GroupInfoV2 && (forceUpdate || ((GroupInfoV2) group).getGroup() == null)) {
2635             final var groupSecretParams = GroupSecretParams.deriveFromMasterKey(((GroupInfoV2) group).getMasterKey());
2636             ((GroupInfoV2) group).setGroup(groupV2Helper.getDecryptedGroup(groupSecretParams), this::resolveRecipient);
2637             account.getGroupStore().updateGroup(group);
2638         }
2639         return group;
2640     }
2641
2642     public List<IdentityInfo> getIdentities() {
2643         return account.getIdentityKeyStore().getIdentities();
2644     }
2645
2646     public List<IdentityInfo> getIdentities(String number) throws InvalidNumberException {
2647         final var identity = account.getIdentityKeyStore().getIdentity(canonicalizeAndResolveRecipient(number));
2648         return identity == null ? List.of() : List.of(identity);
2649     }
2650
2651     /**
2652      * Trust this the identity with this fingerprint
2653      *
2654      * @param name        username of the identity
2655      * @param fingerprint Fingerprint
2656      */
2657     public boolean trustIdentityVerified(String name, byte[] fingerprint) throws InvalidNumberException {
2658         var recipientId = canonicalizeAndResolveRecipient(name);
2659         return trustIdentity(recipientId,
2660                 identityKey -> Arrays.equals(identityKey.serialize(), fingerprint),
2661                 TrustLevel.TRUSTED_VERIFIED);
2662     }
2663
2664     /**
2665      * Trust this the identity with this safety number
2666      *
2667      * @param name         username of the identity
2668      * @param safetyNumber Safety number
2669      */
2670     public boolean trustIdentityVerifiedSafetyNumber(String name, String safetyNumber) throws InvalidNumberException {
2671         var recipientId = canonicalizeAndResolveRecipient(name);
2672         var address = account.getRecipientStore().resolveServiceAddress(recipientId);
2673         return trustIdentity(recipientId,
2674                 identityKey -> safetyNumber.equals(computeSafetyNumber(address, identityKey)),
2675                 TrustLevel.TRUSTED_VERIFIED);
2676     }
2677
2678     /**
2679      * Trust this the identity with this scannable safety number
2680      *
2681      * @param name         username of the identity
2682      * @param safetyNumber Scannable safety number
2683      */
2684     public boolean trustIdentityVerifiedSafetyNumber(String name, byte[] safetyNumber) throws InvalidNumberException {
2685         var recipientId = canonicalizeAndResolveRecipient(name);
2686         var address = account.getRecipientStore().resolveServiceAddress(recipientId);
2687         return trustIdentity(recipientId, identityKey -> {
2688             final var fingerprint = computeSafetyNumberFingerprint(address, identityKey);
2689             try {
2690                 return fingerprint != null && fingerprint.getScannableFingerprint().compareTo(safetyNumber);
2691             } catch (FingerprintVersionMismatchException | FingerprintParsingException e) {
2692                 return false;
2693             }
2694         }, TrustLevel.TRUSTED_VERIFIED);
2695     }
2696
2697     /**
2698      * Trust all keys of this identity without verification
2699      *
2700      * @param name username of the identity
2701      */
2702     public boolean trustIdentityAllKeys(String name) throws InvalidNumberException {
2703         var recipientId = canonicalizeAndResolveRecipient(name);
2704         return trustIdentity(recipientId, identityKey -> true, TrustLevel.TRUSTED_UNVERIFIED);
2705     }
2706
2707     private boolean trustIdentity(
2708             RecipientId recipientId, Function<IdentityKey, Boolean> verifier, TrustLevel trustLevel
2709     ) {
2710         var identity = account.getIdentityKeyStore().getIdentity(recipientId);
2711         if (identity == null) {
2712             return false;
2713         }
2714
2715         if (!verifier.apply(identity.getIdentityKey())) {
2716             return false;
2717         }
2718
2719         account.getIdentityKeyStore().setIdentityTrustLevel(recipientId, identity.getIdentityKey(), trustLevel);
2720         try {
2721             var address = account.getRecipientStore().resolveServiceAddress(recipientId);
2722             sendVerifiedMessage(address, identity.getIdentityKey(), trustLevel);
2723         } catch (IOException e) {
2724             logger.warn("Failed to send verification sync message: {}", e.getMessage());
2725         }
2726
2727         return true;
2728     }
2729
2730     private void handleIdentityFailure(
2731             final RecipientId recipientId, final SendMessageResult.IdentityFailure identityFailure
2732     ) {
2733         final var identityKey = identityFailure.getIdentityKey();
2734         if (identityKey != null) {
2735             final var newIdentity = account.getIdentityKeyStore().saveIdentity(recipientId, identityKey, new Date());
2736             if (newIdentity) {
2737                 account.getSessionStore().archiveSessions(recipientId);
2738             }
2739         } else {
2740             // Retrieve profile to get the current identity key from the server
2741             retrieveEncryptedProfile(recipientId);
2742         }
2743     }
2744
2745     public String computeSafetyNumber(SignalServiceAddress theirAddress, IdentityKey theirIdentityKey) {
2746         final Fingerprint fingerprint = computeSafetyNumberFingerprint(theirAddress, theirIdentityKey);
2747         return fingerprint == null ? null : fingerprint.getDisplayableFingerprint().getDisplayText();
2748     }
2749
2750     public byte[] computeSafetyNumberForScanning(SignalServiceAddress theirAddress, IdentityKey theirIdentityKey) {
2751         final Fingerprint fingerprint = computeSafetyNumberFingerprint(theirAddress, theirIdentityKey);
2752         return fingerprint == null ? null : fingerprint.getScannableFingerprint().getSerialized();
2753     }
2754
2755     private Fingerprint computeSafetyNumberFingerprint(
2756             final SignalServiceAddress theirAddress, final IdentityKey theirIdentityKey
2757     ) {
2758         return Utils.computeSafetyNumber(capabilities.isUuid(),
2759                 account.getSelfAddress(),
2760                 getIdentityKeyPair().getPublicKey(),
2761                 theirAddress,
2762                 theirIdentityKey);
2763     }
2764
2765     @Deprecated
2766     public SignalServiceAddress resolveSignalServiceAddress(String identifier) {
2767         var address = Utils.getSignalServiceAddressFromIdentifier(identifier);
2768
2769         return resolveSignalServiceAddress(address);
2770     }
2771
2772     @Deprecated
2773     public SignalServiceAddress resolveSignalServiceAddress(SignalServiceAddress address) {
2774         if (address.matches(account.getSelfAddress())) {
2775             return account.getSelfAddress();
2776         }
2777
2778         return account.getRecipientStore().resolveServiceAddress(address);
2779     }
2780
2781     public SignalServiceAddress resolveSignalServiceAddress(RecipientId recipientId) {
2782         return account.getRecipientStore().resolveServiceAddress(recipientId);
2783     }
2784
2785     private RecipientId canonicalizeAndResolveRecipient(String identifier) throws InvalidNumberException {
2786         var canonicalizedNumber = UuidUtil.isUuid(identifier) ? identifier : canonicalizePhoneNumber(identifier);
2787
2788         return resolveRecipient(canonicalizedNumber);
2789     }
2790
2791     private String canonicalizePhoneNumber(final String number) throws InvalidNumberException {
2792         return PhoneNumberFormatter.formatNumber(number, account.getUsername());
2793     }
2794
2795     private RecipientId resolveRecipient(final String identifier) {
2796         var address = Utils.getSignalServiceAddressFromIdentifier(identifier);
2797
2798         return resolveRecipient(address);
2799     }
2800
2801     public RecipientId resolveRecipient(SignalServiceAddress address) {
2802         return account.getRecipientStore().resolveRecipient(address);
2803     }
2804
2805     private RecipientId resolveRecipientTrusted(SignalServiceAddress address) {
2806         return account.getRecipientStore().resolveRecipientTrusted(address);
2807     }
2808
2809     private void enqueueJob(Job job) {
2810         var context = new Context(account,
2811                 dependencies.getAccountManager(),
2812                 dependencies.getMessageReceiver(),
2813                 stickerPackStore);
2814         job.run(context);
2815     }
2816
2817     @Override
2818     public void close() throws IOException {
2819         close(true);
2820     }
2821
2822     void close(boolean closeAccount) throws IOException {
2823         executor.shutdown();
2824
2825         dependencies.getSignalWebSocket().disconnect();
2826
2827         if (closeAccount && account != null) {
2828             account.close();
2829         }
2830         account = null;
2831     }
2832
2833     public interface ReceiveMessageHandler {
2834
2835         void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent decryptedContent, Throwable e);
2836     }
2837 }