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

   1 /*
   2   Copyright (C) 2015-2021 AsamK and contributors
   3
   4   This program is free software: you can redistribute it and/or modify
   5   it under the terms of the GNU General Public License as published by
   6   the Free Software Foundation, either version 3 of the License, or
   7   (at your option) any later version.
   8
   9   This program is distributed in the hope that it will be useful,
  10   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12   GNU General Public License for more details.
  13
  14   You should have received a copy of the GNU General Public License
  15   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17 package org.asamk.signal.manager;
  18
  19 import org.asamk.signal.manager.api.Device;
  20 import org.asamk.signal.manager.config.ServiceConfig;
  21 import org.asamk.signal.manager.config.ServiceEnvironment;
  22 import org.asamk.signal.manager.config.ServiceEnvironmentConfig;
  23 import org.asamk.signal.manager.groups.GroupId;
  24 import org.asamk.signal.manager.groups.GroupIdV1;
  25 import org.asamk.signal.manager.groups.GroupInviteLinkUrl;
  26 import org.asamk.signal.manager.groups.GroupNotFoundException;
  27 import org.asamk.signal.manager.groups.GroupUtils;
  28 import org.asamk.signal.manager.groups.NotAGroupMemberException;
  29 import org.asamk.signal.manager.helper.GroupHelper;
  30 import org.asamk.signal.manager.helper.PinHelper;
  31 import org.asamk.signal.manager.helper.ProfileHelper;
  32 import org.asamk.signal.manager.helper.UnidentifiedAccessHelper;
  33 import org.asamk.signal.manager.storage.SignalAccount;
  34 import org.asamk.signal.manager.storage.groups.GroupInfo;
  35 import org.asamk.signal.manager.storage.groups.GroupInfoV1;
  36 import org.asamk.signal.manager.storage.groups.GroupInfoV2;
  37 import org.asamk.signal.manager.storage.identities.IdentityInfo;
  38 import org.asamk.signal.manager.storage.messageCache.CachedMessage;
  39 import org.asamk.signal.manager.storage.recipients.Contact;
  40 import org.asamk.signal.manager.storage.recipients.Profile;
  41 import org.asamk.signal.manager.storage.recipients.RecipientId;
  42 import org.asamk.signal.manager.storage.stickers.Sticker;
  43 import org.asamk.signal.manager.storage.stickers.StickerPackId;
  44 import org.asamk.signal.manager.util.AttachmentUtils;
  45 import org.asamk.signal.manager.util.IOUtils;
  46 import org.asamk.signal.manager.util.KeyUtils;
  47 import org.asamk.signal.manager.util.ProfileUtils;
  48 import org.asamk.signal.manager.util.StickerUtils;
  49 import org.asamk.signal.manager.util.Utils;
  50 import org.signal.libsignal.metadata.InvalidMetadataMessageException;
  51 import org.signal.libsignal.metadata.InvalidMetadataVersionException;
  52 import org.signal.libsignal.metadata.ProtocolDuplicateMessageException;
  53 import org.signal.libsignal.metadata.ProtocolInvalidKeyException;
  54 import org.signal.libsignal.metadata.ProtocolInvalidKeyIdException;
  55 import org.signal.libsignal.metadata.ProtocolInvalidMessageException;
  56 import org.signal.libsignal.metadata.ProtocolInvalidVersionException;
  57 import org.signal.libsignal.metadata.ProtocolLegacyMessageException;
  58 import org.signal.libsignal.metadata.ProtocolNoSessionException;
  59 import org.signal.libsignal.metadata.ProtocolUntrustedIdentityException;
  60 import org.signal.libsignal.metadata.SelfSendException;
  61 import org.signal.libsignal.metadata.certificate.CertificateValidator;
  62 import org.signal.storageservice.protos.groups.GroupChange;
  63 import org.signal.storageservice.protos.groups.local.DecryptedGroup;
  64 import org.signal.zkgroup.InvalidInputException;
  65 import org.signal.zkgroup.VerificationFailedException;
  66 import org.signal.zkgroup.groups.GroupMasterKey;
  67 import org.signal.zkgroup.groups.GroupSecretParams;
  68 import org.signal.zkgroup.profiles.ClientZkProfileOperations;
  69 import org.signal.zkgroup.profiles.ProfileKey;
  70 import org.signal.zkgroup.profiles.ProfileKeyCredential;
  71 import org.slf4j.Logger;
  72 import org.slf4j.LoggerFactory;
  73 import org.whispersystems.libsignal.IdentityKey;
  74 import org.whispersystems.libsignal.IdentityKeyPair;
  75 import org.whispersystems.libsignal.InvalidKeyException;
  76 import org.whispersystems.libsignal.InvalidMessageException;
  77 import org.whispersystems.libsignal.ecc.ECPublicKey;
  78 import org.whispersystems.libsignal.state.PreKeyRecord;
  79 import org.whispersystems.libsignal.state.SignedPreKeyRecord;
  80 import org.whispersystems.libsignal.util.Pair;
  81 import org.whispersystems.libsignal.util.guava.Optional;
  82 import org.whispersystems.signalservice.api.SignalServiceAccountManager;
  83 import org.whispersystems.signalservice.api.SignalServiceMessagePipe;
  84 import org.whispersystems.signalservice.api.SignalServiceMessageReceiver;
  85 import org.whispersystems.signalservice.api.SignalServiceMessageSender;
  86 import org.whispersystems.signalservice.api.SignalSessionLock;
  87 import org.whispersystems.signalservice.api.crypto.SignalServiceCipher;
  88 import org.whispersystems.signalservice.api.crypto.UntrustedIdentityException;
  89 import org.whispersystems.signalservice.api.groupsv2.ClientZkOperations;
  90 import org.whispersystems.signalservice.api.groupsv2.GroupLinkNotActiveException;
  91 import org.whispersystems.signalservice.api.groupsv2.GroupsV2Api;
  92 import org.whispersystems.signalservice.api.groupsv2.GroupsV2AuthorizationString;
  93 import org.whispersystems.signalservice.api.groupsv2.GroupsV2Operations;
  94 import org.whispersystems.signalservice.api.messages.SendMessageResult;
  95 import org.whispersystems.signalservice.api.messages.SignalServiceAttachment;
  96 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentPointer;
  97 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentRemoteId;
  98 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentStream;
  99 import org.whispersystems.signalservice.api.messages.SignalServiceContent;
 100 import org.whispersystems.signalservice.api.messages.SignalServiceDataMessage;
 101 import org.whispersystems.signalservice.api.messages.SignalServiceEnvelope;
 102 import org.whispersystems.signalservice.api.messages.SignalServiceGroup;
 103 import org.whispersystems.signalservice.api.messages.SignalServiceGroupV2;
 104 import org.whispersystems.signalservice.api.messages.SignalServiceReceiptMessage;
 105 import org.whispersystems.signalservice.api.messages.multidevice.BlockedListMessage;
 106 import org.whispersystems.signalservice.api.messages.multidevice.ContactsMessage;
 107 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContact;
 108 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsInputStream;
 109 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsOutputStream;
 110 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroup;
 111 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsInputStream;
 112 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsOutputStream;
 113 import org.whispersystems.signalservice.api.messages.multidevice.RequestMessage;
 114 import org.whispersystems.signalservice.api.messages.multidevice.SentTranscriptMessage;
 115 import org.whispersystems.signalservice.api.messages.multidevice.SignalServiceSyncMessage;
 116 import org.whispersystems.signalservice.api.messages.multidevice.StickerPackOperationMessage;
 117 import org.whispersystems.signalservice.api.messages.multidevice.VerifiedMessage;
 118 import org.whispersystems.signalservice.api.profiles.ProfileAndCredential;
 119 import org.whispersystems.signalservice.api.profiles.SignalServiceProfile;
 120 import org.whispersystems.signalservice.api.push.SignalServiceAddress;
 121 import org.whispersystems.signalservice.api.push.exceptions.MissingConfigurationException;
 122 import org.whispersystems.signalservice.api.push.exceptions.UnregisteredUserException;
 123 import org.whispersystems.signalservice.api.util.DeviceNameUtil;
 124 import org.whispersystems.signalservice.api.util.InvalidNumberException;
 125 import org.whispersystems.signalservice.api.util.PhoneNumberFormatter;
 126 import org.whispersystems.signalservice.api.util.SleepTimer;
 127 import org.whispersystems.signalservice.api.util.UptimeSleepTimer;
 128 import org.whispersystems.signalservice.api.util.UuidUtil;
 129 import org.whispersystems.signalservice.internal.contacts.crypto.Quote;
 130 import org.whispersystems.signalservice.internal.contacts.crypto.UnauthenticatedQuoteException;
 131 import org.whispersystems.signalservice.internal.contacts.crypto.UnauthenticatedResponseException;
 132 import org.whispersystems.signalservice.internal.push.SignalServiceProtos;
 133 import org.whispersystems.signalservice.internal.push.UnsupportedDataMessageException;
 134 import org.whispersystems.signalservice.internal.util.DynamicCredentialsProvider;
 135 import org.whispersystems.signalservice.internal.util.Hex;
 136 import org.whispersystems.signalservice.internal.util.Util;
 137
 138 import java.io.Closeable;
 139 import java.io.File;
 140 import java.io.FileInputStream;
 141 import java.io.FileOutputStream;
 142 import java.io.IOException;
 143 import java.io.InputStream;
 144 import java.io.OutputStream;
 145 import java.net.URI;
 146 import java.net.URISyntaxException;
 147 import java.net.URLEncoder;
 148 import java.nio.charset.StandardCharsets;
 149 import java.nio.file.Files;
 150 import java.security.SignatureException;
 151 import java.util.ArrayList;
 152 import java.util.Arrays;
 153 import java.util.Base64;
 154 import java.util.Collection;
 155 import java.util.Date;
 156 import java.util.HashSet;
 157 import java.util.List;
 158 import java.util.Map;
 159 import java.util.Set;
 160 import java.util.UUID;
 161 import java.util.concurrent.ExecutorService;
 162 import java.util.concurrent.Executors;
 163 import java.util.concurrent.TimeUnit;
 164 import java.util.concurrent.TimeoutException;
 165 import java.util.concurrent.locks.ReentrantLock;
 166 import java.util.function.Function;
 167 import java.util.stream.Collectors;
 168
 169 import static org.asamk.signal.manager.config.ServiceConfig.capabilities;
 170
 171 public class Manager implements Closeable {
 172
 173     private final static Logger logger = LoggerFactory.getLogger(Manager.class);
 174
 175     private final CertificateValidator certificateValidator;
 176
 177     private final ServiceEnvironmentConfig serviceEnvironmentConfig;
 178     private final String userAgent;
 179
 180     private SignalAccount account;
 181     private final SignalServiceAccountManager accountManager;
 182     private final GroupsV2Api groupsV2Api;
 183     private final GroupsV2Operations groupsV2Operations;
 184     private final SignalServiceMessageReceiver messageReceiver;
 185     private final ClientZkProfileOperations clientZkProfileOperations;
 186
 187     private final ExecutorService executor = Executors.newCachedThreadPool();
 188
 189     private SignalServiceMessagePipe messagePipe = null;
 190     private SignalServiceMessagePipe unidentifiedMessagePipe = null;
 191
 192     private final UnidentifiedAccessHelper unidentifiedAccessHelper;
 193     private final ProfileHelper profileHelper;
 194     private final GroupHelper groupHelper;
 195     private final PinHelper pinHelper;
 196     private final AvatarStore avatarStore;
 197     private final AttachmentStore attachmentStore;
 198     private final SignalSessionLock sessionLock = new SignalSessionLock() {
 199         private final ReentrantLock LEGACY_LOCK = new ReentrantLock();
 200
 201         @Override
 202         public Lock acquire() {
 203             LEGACY_LOCK.lock();
 204             return LEGACY_LOCK::unlock;
 205         }
 206     };
 207
 208     Manager(
 209             SignalAccount account,
 210             PathConfig pathConfig,
 211             ServiceEnvironmentConfig serviceEnvironmentConfig,
 212             String userAgent
 213     ) {
 214         this.account = account;
 215         this.serviceEnvironmentConfig = serviceEnvironmentConfig;
 216         this.certificateValidator = new CertificateValidator(serviceEnvironmentConfig.getUnidentifiedSenderTrustRoot());
 217         this.userAgent = userAgent;
 218         this.groupsV2Operations = capabilities.isGv2() ? new GroupsV2Operations(ClientZkOperations.create(
 219                 serviceEnvironmentConfig.getSignalServiceConfiguration())) : null;
 220         final SleepTimer timer = new UptimeSleepTimer();
 221         this.accountManager = new SignalServiceAccountManager(serviceEnvironmentConfig.getSignalServiceConfiguration(),
 222                 new DynamicCredentialsProvider(account.getUuid(),
 223                         account.getUsername(),
 224                         account.getPassword(),
 225                         account.getDeviceId()),
 226                 userAgent,
 227                 groupsV2Operations,
 228                 ServiceConfig.AUTOMATIC_NETWORK_RETRY,
 229                 timer);
 230         this.groupsV2Api = accountManager.getGroupsV2Api();
 231         final var keyBackupService = accountManager.getKeyBackupService(ServiceConfig.getIasKeyStore(),
 232                 serviceEnvironmentConfig.getKeyBackupConfig().getEnclaveName(),
 233                 serviceEnvironmentConfig.getKeyBackupConfig().getServiceId(),
 234                 serviceEnvironmentConfig.getKeyBackupConfig().getMrenclave(),
 235                 10);
 236
 237         this.pinHelper = new PinHelper(keyBackupService);
 238         this.clientZkProfileOperations = capabilities.isGv2()
 239                 ? ClientZkOperations.create(serviceEnvironmentConfig.getSignalServiceConfiguration())
 240                 .getProfileOperations()
 241                 : null;
 242         this.messageReceiver = new SignalServiceMessageReceiver(serviceEnvironmentConfig.getSignalServiceConfiguration(),
 243                 account.getUuid(),
 244                 account.getUsername(),
 245                 account.getPassword(),
 246                 account.getDeviceId(),
 247                 userAgent,
 248                 null,
 249                 timer,
 250                 clientZkProfileOperations,
 251                 ServiceConfig.AUTOMATIC_NETWORK_RETRY);
 252
 253         this.unidentifiedAccessHelper = new UnidentifiedAccessHelper(account::getProfileKey,
 254                 account.getProfileStore()::getProfileKey,
 255                 this::getRecipientProfile,
 256                 this::getSenderCertificate);
 257         this.profileHelper = new ProfileHelper(account.getProfileStore()::getProfileKey,
 258                 unidentifiedAccessHelper::getAccessFor,
 259                 unidentified -> unidentified ? getOrCreateUnidentifiedMessagePipe() : getOrCreateMessagePipe(),
 260                 () -> messageReceiver,
 261                 this::resolveSignalServiceAddress);
 262         this.groupHelper = new GroupHelper(this::getRecipientProfileKeyCredential,
 263                 this::getRecipientProfile,
 264                 account::getSelfRecipientId,
 265                 groupsV2Operations,
 266                 groupsV2Api,
 267                 this::getGroupAuthForToday,
 268                 this::resolveSignalServiceAddress);
 269         this.avatarStore = new AvatarStore(pathConfig.getAvatarsPath());
 270         this.attachmentStore = new AttachmentStore(pathConfig.getAttachmentsPath());
 271     }
 272
 273     public String getUsername() {
 274         return account.getUsername();
 275     }
 276
 277     public SignalServiceAddress getSelfAddress() {
 278         return account.getSelfAddress();
 279     }
 280
 281     public RecipientId getSelfRecipientId() {
 282         return account.getSelfRecipientId();
 283     }
 284
 285     private IdentityKeyPair getIdentityKeyPair() {
 286         return account.getIdentityKeyPair();
 287     }
 288
 289     public int getDeviceId() {
 290         return account.getDeviceId();
 291     }
 292
 293     public static Manager init(
 294             String username, File settingsPath, ServiceEnvironment serviceEnvironment, String userAgent
 295     ) throws IOException, NotRegisteredException {
 296         var pathConfig = PathConfig.createDefault(settingsPath);
 297
 298         if (!SignalAccount.userExists(pathConfig.getDataPath(), username)) {
 299             throw new NotRegisteredException();
 300         }
 301
 302         var account = SignalAccount.load(pathConfig.getDataPath(), username, true);
 303
 304         if (!account.isRegistered()) {
 305             throw new NotRegisteredException();
 306         }
 307
 308         final var serviceEnvironmentConfig = ServiceConfig.getServiceEnvironmentConfig(serviceEnvironment, userAgent);
 309
 310         return new Manager(account, pathConfig, serviceEnvironmentConfig, userAgent);
 311     }
 312
 313     public static List<String> getAllLocalUsernames(File settingsPath) {
 314         var pathConfig = PathConfig.createDefault(settingsPath);
 315         final var dataPath = pathConfig.getDataPath();
 316         final var files = dataPath.listFiles();
 317
 318         if (files == null) {
 319             return List.of();
 320         }
 321
 322         return Arrays.stream(files)
 323                 .filter(File::isFile)
 324                 .map(File::getName)
 325                 .filter(file -> PhoneNumberFormatter.isValidNumber(file, null))
 326                 .collect(Collectors.toList());
 327     }
 328
 329     public void checkAccountState() throws IOException {
 330         if (accountManager.getPreKeysCount() < ServiceConfig.PREKEY_MINIMUM_COUNT) {
 331             refreshPreKeys();
 332         }
 333         if (account.getUuid() == null) {
 334             account.setUuid(accountManager.getOwnUuid());
 335         }
 336         updateAccountAttributes();
 337     }
 338
 339     /**
 340      * This is used for checking a set of phone numbers for registration on Signal
 341      *
 342      * @param numbers The set of phone number in question
 343      * @return A map of numbers to booleans. True if registered, false otherwise. Should never be null
 344      * @throws IOException if its unable to get the contacts to check if they're registered
 345      */
 346     public Map<String, Boolean> areUsersRegistered(Set<String> numbers) throws IOException {
 347         // Note "contactDetails" has no optionals. It only gives us info on users who are registered
 348         var contactDetails = getRegisteredUsers(numbers);
 349
 350         var registeredUsers = contactDetails.keySet();
 351
 352         return numbers.stream().collect(Collectors.toMap(x -> x, registeredUsers::contains));
 353     }
 354
 355     public void updateAccountAttributes() throws IOException {
 356         accountManager.setAccountAttributes(account.getEncryptedDeviceName(),
 357                 null,
 358                 account.getLocalRegistrationId(),
 359                 true,
 360                 // set legacy pin only if no KBS master key is set
 361                 account.getPinMasterKey() == null ? account.getRegistrationLockPin() : null,
 362                 account.getPinMasterKey() == null ? null : account.getPinMasterKey().deriveRegistrationLock(),
 363                 account.getSelfUnidentifiedAccessKey(),
 364                 account.isUnrestrictedUnidentifiedAccess(),
 365                 capabilities,
 366                 account.isDiscoverableByPhoneNumber());
 367     }
 368
 369     /**
 370      * @param givenName  if null, the previous givenName will be kept
 371      * @param familyName if null, the previous familyName will be kept
 372      * @param about      if null, the previous about text will be kept
 373      * @param aboutEmoji if null, the previous about emoji will be kept
 374      * @param avatar     if avatar is null the image from the local avatar store is used (if present),
 375      */
 376     public void setProfile(
 377             String givenName, final String familyName, String about, String aboutEmoji, Optional<File> avatar
 378     ) throws IOException {
 379         var profile = getRecipientProfile(account.getSelfRecipientId());
 380         var builder = profile == null ? Profile.newBuilder() : Profile.newBuilder(profile);
 381         if (givenName != null) {
 382             builder.withGivenName(givenName);
 383         }
 384         if (familyName != null) {
 385             builder.withFamilyName(familyName);
 386         }
 387         if (about != null) {
 388             builder.withAbout(about);
 389         }
 390         if (aboutEmoji != null) {
 391             builder.withAboutEmoji(aboutEmoji);
 392         }
 393         var newProfile = builder.build();
 394
 395         try (final var streamDetails = avatar == null
 396                 ? avatarStore.retrieveProfileAvatar(getSelfAddress())
 397                 : avatar.isPresent() ? Utils.createStreamDetailsFromFile(avatar.get()) : null) {
 398             accountManager.setVersionedProfile(account.getUuid(),
 399                     account.getProfileKey(),
 400                     newProfile.getInternalServiceName(),
 401                     newProfile.getAbout() == null ? "" : newProfile.getAbout(),
 402                     newProfile.getAboutEmoji() == null ? "" : newProfile.getAboutEmoji(),
 403                     Optional.absent(),
 404                     streamDetails);
 405         }
 406
 407         if (avatar != null) {
 408             if (avatar.isPresent()) {
 409                 avatarStore.storeProfileAvatar(getSelfAddress(),
 410                         outputStream -> IOUtils.copyFileToStream(avatar.get(), outputStream));
 411             } else {
 412                 avatarStore.deleteProfileAvatar(getSelfAddress());
 413             }
 414         }
 415         account.getProfileStore().storeProfile(account.getSelfRecipientId(), newProfile);
 416
 417         try {
 418             sendSyncMessage(SignalServiceSyncMessage.forFetchLatest(SignalServiceSyncMessage.FetchType.LOCAL_PROFILE));
 419         } catch (UntrustedIdentityException ignored) {
 420         }
 421     }
 422
 423     public void unregister() throws IOException {
 424         // When setting an empty GCM id, the Signal-Server also sets the fetchesMessages property to false.
 425         // If this is the master device, other users can't send messages to this number anymore.
 426         // If this is a linked device, other users can still send messages, but this device doesn't receive them anymore.
 427         accountManager.setGcmId(Optional.absent());
 428
 429         account.setRegistered(false);
 430     }
 431
 432     public void deleteAccount() throws IOException {
 433         accountManager.deleteAccount();
 434
 435         account.setRegistered(false);
 436     }
 437
 438     public List<Device> getLinkedDevices() throws IOException {
 439         var devices = accountManager.getDevices();
 440         account.setMultiDevice(devices.size() > 1);
 441         var identityKey = account.getIdentityKeyPair().getPrivateKey();
 442         return devices.stream().map(d -> {
 443             String deviceName = d.getName();
 444             if (deviceName != null) {
 445                 try {
 446                     deviceName = DeviceNameUtil.decryptDeviceName(deviceName, identityKey);
 447                 } catch (IOException e) {
 448                     logger.debug("Failed to decrypt device name, maybe plain text?", e);
 449                 }
 450             }
 451             return new Device(d.getId(), deviceName, d.getCreated(), d.getLastSeen());
 452         }).collect(Collectors.toList());
 453     }
 454
 455     public void removeLinkedDevices(int deviceId) throws IOException {
 456         accountManager.removeDevice(deviceId);
 457         var devices = accountManager.getDevices();
 458         account.setMultiDevice(devices.size() > 1);
 459     }
 460
 461     public void addDeviceLink(URI linkUri) throws IOException, InvalidKeyException {
 462         var info = DeviceLinkInfo.parseDeviceLinkUri(linkUri);
 463
 464         addDevice(info.deviceIdentifier, info.deviceKey);
 465     }
 466
 467     private void addDevice(String deviceIdentifier, ECPublicKey deviceKey) throws IOException, InvalidKeyException {
 468         var identityKeyPair = getIdentityKeyPair();
 469         var verificationCode = accountManager.getNewDeviceVerificationCode();
 470
 471         accountManager.addDevice(deviceIdentifier,
 472                 deviceKey,
 473                 identityKeyPair,
 474                 Optional.of(account.getProfileKey().serialize()),
 475                 verificationCode);
 476         account.setMultiDevice(true);
 477     }
 478
 479     public void setRegistrationLockPin(Optional<String> pin) throws IOException, UnauthenticatedResponseException {
 480         if (!account.isMasterDevice()) {
 481             throw new RuntimeException("Only master device can set a PIN");
 482         }
 483         if (pin.isPresent()) {
 484             final var masterKey = account.getPinMasterKey() != null
 485                     ? account.getPinMasterKey()
 486                     : KeyUtils.createMasterKey();
 487
 488             pinHelper.setRegistrationLockPin(pin.get(), masterKey);
 489
 490             account.setRegistrationLockPin(pin.get(), masterKey);
 491         } else {
 492             // Remove legacy registration lock
 493             accountManager.removeRegistrationLockV1();
 494
 495             // Remove KBS Pin
 496             pinHelper.removeRegistrationLockPin();
 497
 498             account.setRegistrationLockPin(null, null);
 499         }
 500     }
 501
 502     void refreshPreKeys() throws IOException {
 503         var oneTimePreKeys = generatePreKeys();
 504         final var identityKeyPair = getIdentityKeyPair();
 505         var signedPreKeyRecord = generateSignedPreKey(identityKeyPair);
 506
 507         accountManager.setPreKeys(identityKeyPair.getPublicKey(), signedPreKeyRecord, oneTimePreKeys);
 508     }
 509
 510     private List<PreKeyRecord> generatePreKeys() {
 511         final var offset = account.getPreKeyIdOffset();
 512
 513         var records = KeyUtils.generatePreKeyRecords(offset, ServiceConfig.PREKEY_BATCH_SIZE);
 514         account.addPreKeys(records);
 515
 516         return records;
 517     }
 518
 519     private SignedPreKeyRecord generateSignedPreKey(IdentityKeyPair identityKeyPair) {
 520         final var signedPreKeyId = account.getNextSignedPreKeyId();
 521
 522         var record = KeyUtils.generateSignedPreKeyRecord(identityKeyPair, signedPreKeyId);
 523         account.addSignedPreKey(record);
 524
 525         return record;
 526     }
 527
 528     private SignalServiceMessagePipe getOrCreateMessagePipe() {
 529         if (messagePipe == null) {
 530             messagePipe = messageReceiver.createMessagePipe();
 531         }
 532         return messagePipe;
 533     }
 534
 535     private SignalServiceMessagePipe getOrCreateUnidentifiedMessagePipe() {
 536         if (unidentifiedMessagePipe == null) {
 537             unidentifiedMessagePipe = messageReceiver.createUnidentifiedMessagePipe();
 538         }
 539         return unidentifiedMessagePipe;
 540     }
 541
 542     private SignalServiceMessageSender createMessageSender() {
 543         return new SignalServiceMessageSender(serviceEnvironmentConfig.getSignalServiceConfiguration(),
 544                 account.getUuid(),
 545                 account.getUsername(),
 546                 account.getPassword(),
 547                 account.getDeviceId(),
 548                 account.getSignalProtocolStore(),
 549                 sessionLock,
 550                 userAgent,
 551                 account.isMultiDevice(),
 552                 Optional.fromNullable(messagePipe),
 553                 Optional.fromNullable(unidentifiedMessagePipe),
 554                 Optional.absent(),
 555                 clientZkProfileOperations,
 556                 executor,
 557                 ServiceConfig.MAX_ENVELOPE_SIZE,
 558                 ServiceConfig.AUTOMATIC_NETWORK_RETRY);
 559     }
 560
 561     public Profile getRecipientProfile(
 562             RecipientId recipientId
 563     ) {
 564         return getRecipientProfile(recipientId, false);
 565     }
 566
 567     private final Set<RecipientId> pendingProfileRequest = new HashSet<>();
 568
 569     Profile getRecipientProfile(
 570             RecipientId recipientId, boolean force
 571     ) {
 572         var profile = account.getProfileStore().getProfile(recipientId);
 573
 574         var now = new Date().getTime();
 575         // Profiles are cached for 24h before retrieving them again, unless forced
 576         if (!force && profile != null && now - profile.getLastUpdateTimestamp() < 24 * 60 * 60 * 1000) {
 577             return profile;
 578         }
 579
 580         synchronized (pendingProfileRequest) {
 581             if (pendingProfileRequest.contains(recipientId)) {
 582                 return profile;
 583             }
 584             pendingProfileRequest.add(recipientId);
 585         }
 586         final SignalServiceProfile encryptedProfile;
 587         try {
 588             encryptedProfile = retrieveEncryptedProfile(recipientId);
 589         } finally {
 590             synchronized (pendingProfileRequest) {
 591                 pendingProfileRequest.remove(recipientId);
 592             }
 593         }
 594         if (encryptedProfile == null) {
 595             return null;
 596         }
 597
 598         var profileKey = account.getProfileStore().getProfileKey(recipientId);
 599         if (profileKey == null) {
 600             profile = new Profile(new Date().getTime(),
 601                     null,
 602                     null,
 603                     null,
 604                     null,
 605                     ProfileUtils.getUnidentifiedAccessMode(encryptedProfile, null),
 606                     ProfileUtils.getCapabilities(encryptedProfile));
 607         } else {
 608             profile = decryptProfileAndDownloadAvatar(recipientId, profileKey, encryptedProfile);
 609         }
 610         account.getProfileStore().storeProfile(recipientId, profile);
 611
 612         return profile;
 613     }
 614
 615     private SignalServiceProfile retrieveEncryptedProfile(RecipientId recipientId) {
 616         try {
 617             return retrieveProfileAndCredential(recipientId, SignalServiceProfile.RequestType.PROFILE).getProfile();
 618         } catch (IOException e) {
 619             logger.warn("Failed to retrieve profile, ignoring: {}", e.getMessage());
 620             return null;
 621         }
 622     }
 623
 624     private ProfileAndCredential retrieveProfileAndCredential(
 625             final RecipientId recipientId, final SignalServiceProfile.RequestType requestType
 626     ) throws IOException {
 627         final var profileAndCredential = profileHelper.retrieveProfileSync(recipientId, requestType);
 628         final var profile = profileAndCredential.getProfile();
 629
 630         try {
 631             var newIdentity = account.getIdentityKeyStore()
 632                     .saveIdentity(recipientId,
 633                             new IdentityKey(Base64.getDecoder().decode(profile.getIdentityKey())),
 634                             new Date());
 635
 636             if (newIdentity) {
 637                 account.getSessionStore().archiveSessions(recipientId);
 638             }
 639         } catch (InvalidKeyException ignored) {
 640             logger.warn("Got invalid identity key in profile for {}",
 641                     resolveSignalServiceAddress(recipientId).getLegacyIdentifier());
 642         }
 643         return profileAndCredential;
 644     }
 645
 646     private ProfileKeyCredential getRecipientProfileKeyCredential(RecipientId recipientId) {
 647         var profileKeyCredential = account.getProfileStore().getProfileKeyCredential(recipientId);
 648         if (profileKeyCredential != null) {
 649             return profileKeyCredential;
 650         }
 651
 652         ProfileAndCredential profileAndCredential;
 653         try {
 654             profileAndCredential = retrieveProfileAndCredential(recipientId,
 655                     SignalServiceProfile.RequestType.PROFILE_AND_CREDENTIAL);
 656         } catch (IOException e) {
 657             logger.warn("Failed to retrieve profile key credential, ignoring: {}", e.getMessage());
 658             return null;
 659         }
 660
 661         profileKeyCredential = profileAndCredential.getProfileKeyCredential().orNull();
 662         account.getProfileStore().storeProfileKeyCredential(recipientId, profileKeyCredential);
 663
 664         var profileKey = account.getProfileStore().getProfileKey(recipientId);
 665         if (profileKey != null) {
 666             final var profile = decryptProfileAndDownloadAvatar(recipientId,
 667                     profileKey,
 668                     profileAndCredential.getProfile());
 669             account.getProfileStore().storeProfile(recipientId, profile);
 670         }
 671
 672         return profileKeyCredential;
 673     }
 674
 675     private Profile decryptProfileAndDownloadAvatar(
 676             final RecipientId recipientId, final ProfileKey profileKey, final SignalServiceProfile encryptedProfile
 677     ) {
 678         if (encryptedProfile.getAvatar() != null) {
 679             downloadProfileAvatar(resolveSignalServiceAddress(recipientId), encryptedProfile.getAvatar(), profileKey);
 680         }
 681
 682         return ProfileUtils.decryptProfile(profileKey, encryptedProfile);
 683     }
 684
 685     private Optional<SignalServiceAttachmentStream> createGroupAvatarAttachment(GroupId groupId) throws IOException {
 686         final var streamDetails = avatarStore.retrieveGroupAvatar(groupId);
 687         if (streamDetails == null) {
 688             return Optional.absent();
 689         }
 690
 691         return Optional.of(AttachmentUtils.createAttachment(streamDetails, Optional.absent()));
 692     }
 693
 694     private Optional<SignalServiceAttachmentStream> createContactAvatarAttachment(SignalServiceAddress address) throws IOException {
 695         final var streamDetails = avatarStore.retrieveContactAvatar(address);
 696         if (streamDetails == null) {
 697             return Optional.absent();
 698         }
 699
 700         return Optional.of(AttachmentUtils.createAttachment(streamDetails, Optional.absent()));
 701     }
 702
 703     private GroupInfo getGroupForSending(GroupId groupId) throws GroupNotFoundException, NotAGroupMemberException {
 704         var g = getGroup(groupId);
 705         if (g == null) {
 706             throw new GroupNotFoundException(groupId);
 707         }
 708         if (!g.isMember(account.getSelfRecipientId())) {
 709             throw new NotAGroupMemberException(groupId, g.getTitle());
 710         }
 711         return g;
 712     }
 713
 714     private GroupInfo getGroupForUpdating(GroupId groupId) throws GroupNotFoundException, NotAGroupMemberException {
 715         var g = getGroup(groupId);
 716         if (g == null) {
 717             throw new GroupNotFoundException(groupId);
 718         }
 719         if (!g.isMember(account.getSelfRecipientId()) && !g.isPendingMember(account.getSelfRecipientId())) {
 720             throw new NotAGroupMemberException(groupId, g.getTitle());
 721         }
 722         return g;
 723     }
 724
 725     public List<GroupInfo> getGroups() {
 726         return account.getGroupStore().getGroups();
 727     }
 728
 729     public Pair<Long, List<SendMessageResult>> sendGroupMessage(
 730             String messageText, List<String> attachments, GroupId groupId
 731     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 732         final var messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
 733         if (attachments != null) {
 734             messageBuilder.withAttachments(AttachmentUtils.getSignalServiceAttachments(attachments));
 735         }
 736
 737         return sendGroupMessage(messageBuilder, groupId);
 738     }
 739
 740     public Pair<Long, List<SendMessageResult>> sendGroupMessageReaction(
 741             String emoji, boolean remove, String targetAuthor, long targetSentTimestamp, GroupId groupId
 742     ) throws IOException, InvalidNumberException, NotAGroupMemberException, GroupNotFoundException {
 743         var targetAuthorRecipientId = canonicalizeAndResolveRecipient(targetAuthor);
 744         var reaction = new SignalServiceDataMessage.Reaction(emoji,
 745                 remove,
 746                 resolveSignalServiceAddress(targetAuthorRecipientId),
 747                 targetSentTimestamp);
 748         final var messageBuilder = SignalServiceDataMessage.newBuilder().withReaction(reaction);
 749
 750         return sendGroupMessage(messageBuilder, groupId);
 751     }
 752
 753     public Pair<Long, List<SendMessageResult>> sendGroupMessage(
 754             SignalServiceDataMessage.Builder messageBuilder, GroupId groupId
 755     ) throws IOException, GroupNotFoundException, NotAGroupMemberException {
 756         final var g = getGroupForSending(groupId);
 757
 758         GroupUtils.setGroupContext(messageBuilder, g);
 759         messageBuilder.withExpiration(g.getMessageExpirationTime());
 760
 761         return sendMessage(messageBuilder, g.getMembersWithout(account.getSelfRecipientId()));
 762     }
 763
 764     public Pair<Long, List<SendMessageResult>> sendQuitGroupMessage(GroupId groupId) throws GroupNotFoundException, IOException, NotAGroupMemberException {
 765         SignalServiceDataMessage.Builder messageBuilder;
 766
 767         final var g = getGroupForUpdating(groupId);
 768         if (g instanceof GroupInfoV1) {
 769             var groupInfoV1 = (GroupInfoV1) g;
 770             var group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.QUIT).withId(groupId.serialize()).build();
 771             messageBuilder = SignalServiceDataMessage.newBuilder().asGroupMessage(group);
 772             groupInfoV1.removeMember(account.getSelfRecipientId());
 773             account.getGroupStore().updateGroup(groupInfoV1);
 774         } else {
 775             final var groupInfoV2 = (GroupInfoV2) g;
 776             final var groupGroupChangePair = groupHelper.leaveGroup(groupInfoV2);
 777             groupInfoV2.setGroup(groupGroupChangePair.first(), this::resolveRecipient);
 778             messageBuilder = getGroupUpdateMessageBuilder(groupInfoV2, groupGroupChangePair.second().toByteArray());
 779             account.getGroupStore().updateGroup(groupInfoV2);
 780         }
 781
 782         return sendMessage(messageBuilder, g.getMembersWithout(account.getSelfRecipientId()));
 783     }
 784
 785     public Pair<GroupId, List<SendMessageResult>> updateGroup(
 786             GroupId groupId, String name, List<String> members, File avatarFile
 787     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, InvalidNumberException, NotAGroupMemberException {
 788         final var membersRecipientIds = members == null ? null : getSignalServiceAddresses(members);
 789         if (membersRecipientIds != null) {
 790             membersRecipientIds.remove(account.getSelfRecipientId());
 791         }
 792         return sendUpdateGroupMessage(groupId, name, membersRecipientIds, avatarFile);
 793     }
 794
 795     private Pair<GroupId, List<SendMessageResult>> sendUpdateGroupMessage(
 796             GroupId groupId, String name, Set<RecipientId> members, File avatarFile
 797     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 798         GroupInfo g;
 799         SignalServiceDataMessage.Builder messageBuilder;
 800         if (groupId == null) {
 801             // Create new group
 802             var gv2Pair = groupHelper.createGroupV2(name == null ? "" : name,
 803                     members == null ? Set.of() : members,
 804                     avatarFile);
 805             if (gv2Pair == null) {
 806                 var gv1 = new GroupInfoV1(GroupIdV1.createRandom());
 807                 gv1.addMembers(List.of(account.getSelfRecipientId()));
 808                 updateGroupV1(gv1, name, members, avatarFile);
 809                 messageBuilder = getGroupUpdateMessageBuilder(gv1);
 810                 g = gv1;
 811             } else {
 812                 final var gv2 = gv2Pair.first();
 813                 final var decryptedGroup = gv2Pair.second();
 814
 815                 gv2.setGroup(decryptedGroup, this::resolveRecipient);
 816                 if (avatarFile != null) {
 817                     avatarStore.storeGroupAvatar(gv2.getGroupId(),
 818                             outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
 819                 }
 820                 messageBuilder = getGroupUpdateMessageBuilder(gv2, null);
 821                 g = gv2;
 822             }
 823         } else {
 824             var group = getGroupForUpdating(groupId);
 825             if (group instanceof GroupInfoV2) {
 826                 final var groupInfoV2 = (GroupInfoV2) group;
 827
 828                 Pair<Long, List<SendMessageResult>> result = null;
 829                 if (groupInfoV2.isPendingMember(account.getSelfRecipientId())) {
 830                     var groupGroupChangePair = groupHelper.acceptInvite(groupInfoV2);
 831                     result = sendUpdateGroupMessage(groupInfoV2,
 832                             groupGroupChangePair.first(),
 833                             groupGroupChangePair.second());
 834                 }
 835
 836                 if (members != null) {
 837                     final var newMembers = new HashSet<>(members);
 838                     newMembers.removeAll(group.getMembers());
 839                     if (newMembers.size() > 0) {
 840                         var groupGroupChangePair = groupHelper.updateGroupV2(groupInfoV2, newMembers);
 841                         result = sendUpdateGroupMessage(groupInfoV2,
 842                                 groupGroupChangePair.first(),
 843                                 groupGroupChangePair.second());
 844                     }
 845                 }
 846                 if (result == null || name != null || avatarFile != null) {
 847                     var groupGroupChangePair = groupHelper.updateGroupV2(groupInfoV2, name, avatarFile);
 848                     if (avatarFile != null) {
 849                         avatarStore.storeGroupAvatar(groupInfoV2.getGroupId(),
 850                                 outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
 851                     }
 852                     result = sendUpdateGroupMessage(groupInfoV2,
 853                             groupGroupChangePair.first(),
 854                             groupGroupChangePair.second());
 855                 }
 856
 857                 return new Pair<>(group.getGroupId(), result.second());
 858             } else {
 859                 var gv1 = (GroupInfoV1) group;
 860                 updateGroupV1(gv1, name, members, avatarFile);
 861                 messageBuilder = getGroupUpdateMessageBuilder(gv1);
 862                 g = gv1;
 863             }
 864         }
 865
 866         account.getGroupStore().updateGroup(g);
 867
 868         final var result = sendMessage(messageBuilder,
 869                 g.getMembersIncludingPendingWithout(account.getSelfRecipientId()));
 870         return new Pair<>(g.getGroupId(), result.second());
 871     }
 872
 873     private void updateGroupV1(
 874             final GroupInfoV1 g, final String name, final Collection<RecipientId> members, final File avatarFile
 875     ) throws IOException {
 876         if (name != null) {
 877             g.name = name;
 878         }
 879
 880         if (members != null) {
 881             final var newMemberAddresses = members.stream()
 882                     .filter(member -> !g.isMember(member))
 883                     .map(this::resolveSignalServiceAddress)
 884                     .collect(Collectors.toList());
 885             final var newE164Members = new HashSet<String>();
 886             for (var member : newMemberAddresses) {
 887                 if (!member.getNumber().isPresent()) {
 888                     continue;
 889                 }
 890                 newE164Members.add(member.getNumber().get());
 891             }
 892
 893             final var registeredUsers = getRegisteredUsers(newE164Members);
 894             if (registeredUsers.size() != newE164Members.size()) {
 895                 // Some of the new members are not registered on Signal
 896                 newE164Members.removeAll(registeredUsers.keySet());
 897                 throw new IOException("Failed to add members "
 898                         + String.join(", ", newE164Members)
 899                         + " to group: Not registered on Signal");
 900             }
 901
 902             g.addMembers(members);
 903         }
 904
 905         if (avatarFile != null) {
 906             avatarStore.storeGroupAvatar(g.getGroupId(),
 907                     outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
 908         }
 909     }
 910
 911     public Pair<GroupId, List<SendMessageResult>> joinGroup(
 912             GroupInviteLinkUrl inviteLinkUrl
 913     ) throws IOException, GroupLinkNotActiveException {
 914         return sendJoinGroupMessage(inviteLinkUrl);
 915     }
 916
 917     private Pair<GroupId, List<SendMessageResult>> sendJoinGroupMessage(
 918             GroupInviteLinkUrl inviteLinkUrl
 919     ) throws IOException, GroupLinkNotActiveException {
 920         final var groupJoinInfo = groupHelper.getDecryptedGroupJoinInfo(inviteLinkUrl.getGroupMasterKey(),
 921                 inviteLinkUrl.getPassword());
 922         final var groupChange = groupHelper.joinGroup(inviteLinkUrl.getGroupMasterKey(),
 923                 inviteLinkUrl.getPassword(),
 924                 groupJoinInfo);
 925         final var group = getOrMigrateGroup(inviteLinkUrl.getGroupMasterKey(),
 926                 groupJoinInfo.getRevision() + 1,
 927                 groupChange.toByteArray());
 928
 929         if (group.getGroup() == null) {
 930             // Only requested member, can't send update to group members
 931             return new Pair<>(group.getGroupId(), List.of());
 932         }
 933
 934         final var result = sendUpdateGroupMessage(group, group.getGroup(), groupChange);
 935
 936         return new Pair<>(group.getGroupId(), result.second());
 937     }
 938
 939     private static int currentTimeDays() {
 940         return (int) TimeUnit.MILLISECONDS.toDays(System.currentTimeMillis());
 941     }
 942
 943     private GroupsV2AuthorizationString getGroupAuthForToday(
 944             final GroupSecretParams groupSecretParams
 945     ) throws IOException {
 946         final var today = currentTimeDays();
 947         // Returns credentials for the next 7 days
 948         final var credentials = groupsV2Api.getCredentials(today);
 949         // TODO cache credentials until they expire
 950         var authCredentialResponse = credentials.get(today);
 951         try {
 952             return groupsV2Api.getGroupsV2AuthorizationString(account.getUuid(),
 953                     today,
 954                     groupSecretParams,
 955                     authCredentialResponse);
 956         } catch (VerificationFailedException e) {
 957             throw new IOException(e);
 958         }
 959     }
 960
 961     private Pair<Long, List<SendMessageResult>> sendUpdateGroupMessage(
 962             GroupInfoV2 group, DecryptedGroup newDecryptedGroup, GroupChange groupChange
 963     ) throws IOException {
 964         group.setGroup(newDecryptedGroup, this::resolveRecipient);
 965         final var messageBuilder = getGroupUpdateMessageBuilder(group, groupChange.toByteArray());
 966         account.getGroupStore().updateGroup(group);
 967         return sendMessage(messageBuilder, group.getMembersIncludingPendingWithout(account.getSelfRecipientId()));
 968     }
 969
 970     Pair<Long, List<SendMessageResult>> sendGroupInfoMessage(
 971             GroupIdV1 groupId, SignalServiceAddress recipient
 972     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, AttachmentInvalidException {
 973         GroupInfoV1 g;
 974         var group = getGroupForSending(groupId);
 975         if (!(group instanceof GroupInfoV1)) {
 976             throw new RuntimeException("Received an invalid group request for a v2 group!");
 977         }
 978         g = (GroupInfoV1) group;
 979
 980         final var recipientId = resolveRecipient(recipient);
 981         if (!g.isMember(recipientId)) {
 982             throw new NotAGroupMemberException(groupId, g.name);
 983         }
 984
 985         var messageBuilder = getGroupUpdateMessageBuilder(g);
 986
 987         // Send group message only to the recipient who requested it
 988         return sendMessage(messageBuilder, Set.of(recipientId));
 989     }
 990
 991     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfoV1 g) throws AttachmentInvalidException {
 992         var group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.UPDATE)
 993                 .withId(g.getGroupId().serialize())
 994                 .withName(g.name)
 995                 .withMembers(g.getMembers()
 996                         .stream()
 997                         .map(this::resolveSignalServiceAddress)
 998                         .collect(Collectors.toList()));
 999
1000         try {
1001             final var attachment = createGroupAvatarAttachment(g.getGroupId());
1002             if (attachment.isPresent()) {
1003                 group.withAvatar(attachment.get());
1004             }
1005         } catch (IOException e) {
1006             throw new AttachmentInvalidException(g.getGroupId().toBase64(), e);
1007         }
1008
1009         return SignalServiceDataMessage.newBuilder()
1010                 .asGroupMessage(group.build())
1011                 .withExpiration(g.getMessageExpirationTime());
1012     }
1013
1014     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfoV2 g, byte[] signedGroupChange) {
1015         var group = SignalServiceGroupV2.newBuilder(g.getMasterKey())
1016                 .withRevision(g.getGroup().getRevision())
1017                 .withSignedGroupChange(signedGroupChange);
1018         return SignalServiceDataMessage.newBuilder()
1019                 .asGroupMessage(group.build())
1020                 .withExpiration(g.getMessageExpirationTime());
1021     }
1022
1023     Pair<Long, List<SendMessageResult>> sendGroupInfoRequest(
1024             GroupIdV1 groupId, SignalServiceAddress recipient
1025     ) throws IOException {
1026         var group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.REQUEST_INFO).withId(groupId.serialize());
1027
1028         var messageBuilder = SignalServiceDataMessage.newBuilder().asGroupMessage(group.build());
1029
1030         // Send group info request message to the recipient who sent us a message with this groupId
1031         return sendMessage(messageBuilder, Set.of(resolveRecipient(recipient)));
1032     }
1033
1034     void sendReceipt(
1035             SignalServiceAddress remoteAddress, long messageId
1036     ) throws IOException, UntrustedIdentityException {
1037         var receiptMessage = new SignalServiceReceiptMessage(SignalServiceReceiptMessage.Type.DELIVERY,
1038                 List.of(messageId),
1039                 System.currentTimeMillis());
1040
1041         createMessageSender().sendReceipt(remoteAddress,
1042                 unidentifiedAccessHelper.getAccessFor(resolveRecipient(remoteAddress)),
1043                 receiptMessage);
1044     }
1045
1046     public Pair<Long, List<SendMessageResult>> sendMessage(
1047             String messageText, List<String> attachments, List<String> recipients
1048     ) throws IOException, AttachmentInvalidException, InvalidNumberException {
1049         final var messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
1050         if (attachments != null) {
1051             var attachmentStreams = AttachmentUtils.getSignalServiceAttachments(attachments);
1052
1053             // Upload attachments here, so we only upload once even for multiple recipients
1054             var messageSender = createMessageSender();
1055             var attachmentPointers = new ArrayList<SignalServiceAttachment>(attachmentStreams.size());
1056             for (var attachment : attachmentStreams) {
1057                 if (attachment.isStream()) {
1058                     attachmentPointers.add(messageSender.uploadAttachment(attachment.asStream()));
1059                 } else if (attachment.isPointer()) {
1060                     attachmentPointers.add(attachment.asPointer());
1061                 }
1062             }
1063
1064             messageBuilder.withAttachments(attachmentPointers);
1065         }
1066         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
1067     }
1068
1069     public Pair<Long, SendMessageResult> sendSelfMessage(
1070             String messageText, List<String> attachments
1071     ) throws IOException, AttachmentInvalidException {
1072         final var messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
1073         if (attachments != null) {
1074             messageBuilder.withAttachments(AttachmentUtils.getSignalServiceAttachments(attachments));
1075         }
1076         return sendSelfMessage(messageBuilder);
1077     }
1078
1079     public Pair<Long, List<SendMessageResult>> sendRemoteDeleteMessage(
1080             long targetSentTimestamp, List<String> recipients
1081     ) throws IOException, InvalidNumberException {
1082         var delete = new SignalServiceDataMessage.RemoteDelete(targetSentTimestamp);
1083         final var messageBuilder = SignalServiceDataMessage.newBuilder().withRemoteDelete(delete);
1084         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
1085     }
1086
1087     public Pair<Long, List<SendMessageResult>> sendGroupRemoteDeleteMessage(
1088             long targetSentTimestamp, GroupId groupId
1089     ) throws IOException, NotAGroupMemberException, GroupNotFoundException {
1090         var delete = new SignalServiceDataMessage.RemoteDelete(targetSentTimestamp);
1091         final var messageBuilder = SignalServiceDataMessage.newBuilder().withRemoteDelete(delete);
1092         return sendGroupMessage(messageBuilder, groupId);
1093     }
1094
1095     public Pair<Long, List<SendMessageResult>> sendMessageReaction(
1096             String emoji, boolean remove, String targetAuthor, long targetSentTimestamp, List<String> recipients
1097     ) throws IOException, InvalidNumberException {
1098         var targetAuthorRecipientId = canonicalizeAndResolveRecipient(targetAuthor);
1099         var reaction = new SignalServiceDataMessage.Reaction(emoji,
1100                 remove,
1101                 resolveSignalServiceAddress(targetAuthorRecipientId),
1102                 targetSentTimestamp);
1103         final var messageBuilder = SignalServiceDataMessage.newBuilder().withReaction(reaction);
1104         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
1105     }
1106
1107     public Pair<Long, List<SendMessageResult>> sendEndSessionMessage(List<String> recipients) throws IOException, InvalidNumberException {
1108         var messageBuilder = SignalServiceDataMessage.newBuilder().asEndSessionMessage();
1109
1110         final var signalServiceAddresses = getSignalServiceAddresses(recipients);
1111         try {
1112             return sendMessage(messageBuilder, signalServiceAddresses);
1113         } catch (Exception e) {
1114             for (var address : signalServiceAddresses) {
1115                 handleEndSession(address);
1116             }
1117             throw e;
1118         }
1119     }
1120
1121     void renewSession(RecipientId recipientId) throws IOException {
1122         account.getSessionStore().archiveSessions(recipientId);
1123         if (!recipientId.equals(getSelfRecipientId())) {
1124             sendNullMessage(recipientId);
1125         }
1126     }
1127
1128     public String getContactName(String number) throws InvalidNumberException {
1129         var contact = account.getContactStore().getContact(canonicalizeAndResolveRecipient(number));
1130         return contact == null || contact.getName() == null ? "" : contact.getName();
1131     }
1132
1133     public void setContactName(String number, String name) throws InvalidNumberException, NotMasterDeviceException {
1134         if (!account.isMasterDevice()) {
1135             throw new NotMasterDeviceException();
1136         }
1137         final var recipientId = canonicalizeAndResolveRecipient(number);
1138         var contact = account.getContactStore().getContact(recipientId);
1139         final var builder = contact == null ? Contact.newBuilder() : Contact.newBuilder(contact);
1140         account.getContactStore().storeContact(recipientId, builder.withName(name).build());
1141     }
1142
1143     public void setContactBlocked(
1144             String number, boolean blocked
1145     ) throws InvalidNumberException, NotMasterDeviceException {
1146         if (!account.isMasterDevice()) {
1147             throw new NotMasterDeviceException();
1148         }
1149         setContactBlocked(canonicalizeAndResolveRecipient(number), blocked);
1150     }
1151
1152     private void setContactBlocked(RecipientId recipientId, boolean blocked) {
1153         var contact = account.getContactStore().getContact(recipientId);
1154         final var builder = contact == null ? Contact.newBuilder() : Contact.newBuilder(contact);
1155         account.getContactStore().storeContact(recipientId, builder.withBlocked(blocked).build());
1156     }
1157
1158     public void setGroupBlocked(final GroupId groupId, final boolean blocked) throws GroupNotFoundException {
1159         var group = getGroup(groupId);
1160         if (group == null) {
1161             throw new GroupNotFoundException(groupId);
1162         }
1163
1164         group.setBlocked(blocked);
1165         account.getGroupStore().updateGroup(group);
1166     }
1167
1168     private void setExpirationTimer(RecipientId recipientId, int messageExpirationTimer) {
1169         var contact = account.getContactStore().getContact(recipientId);
1170         if (contact != null && contact.getMessageExpirationTime() == messageExpirationTimer) {
1171             return;
1172         }
1173         final var builder = contact == null ? Contact.newBuilder() : Contact.newBuilder(contact);
1174         account.getContactStore()
1175                 .storeContact(recipientId, builder.withMessageExpirationTime(messageExpirationTimer).build());
1176     }
1177
1178     private void sendExpirationTimerUpdate(RecipientId recipientId) throws IOException {
1179         final var messageBuilder = SignalServiceDataMessage.newBuilder().asExpirationUpdate();
1180         sendMessage(messageBuilder, Set.of(recipientId));
1181     }
1182
1183     /**
1184      * Change the expiration timer for a contact
1185      */
1186     public void setExpirationTimer(
1187             String number, int messageExpirationTimer
1188     ) throws IOException, InvalidNumberException {
1189         var recipientId = canonicalizeAndResolveRecipient(number);
1190         setExpirationTimer(recipientId, messageExpirationTimer);
1191         sendExpirationTimerUpdate(recipientId);
1192     }
1193
1194     /**
1195      * Change the expiration timer for a group
1196      */
1197     public void setExpirationTimer(GroupId groupId, int messageExpirationTimer) {
1198         var g = getGroup(groupId);
1199         if (g instanceof GroupInfoV1) {
1200             var groupInfoV1 = (GroupInfoV1) g;
1201             groupInfoV1.messageExpirationTime = messageExpirationTimer;
1202             account.getGroupStore().updateGroup(groupInfoV1);
1203         } else {
1204             throw new RuntimeException("TODO Not implemented!");
1205         }
1206     }
1207
1208     /**
1209      * Upload the sticker pack from path.
1210      *
1211      * @param path Path can be a path to a manifest.json file or to a zip file that contains a manifest.json file
1212      * @return if successful, returns the URL to install the sticker pack in the signal app
1213      */
1214     public String uploadStickerPack(File path) throws IOException, StickerPackInvalidException {
1215         var manifest = StickerUtils.getSignalServiceStickerManifestUpload(path);
1216
1217         var messageSender = createMessageSender();
1218
1219         var packKey = KeyUtils.createStickerUploadKey();
1220         var packId = messageSender.uploadStickerManifest(manifest, packKey);
1221
1222         var sticker = new Sticker(StickerPackId.deserialize(Hex.fromStringCondensed(packId)), packKey);
1223         account.getStickerStore().updateSticker(sticker);
1224
1225         try {
1226             return new URI("https",
1227                     "signal.art",
1228                     "/addstickers/",
1229                     "pack_id=" + URLEncoder.encode(packId, StandardCharsets.UTF_8) + "&pack_key=" + URLEncoder.encode(
1230                             Hex.toStringCondensed(packKey),
1231                             StandardCharsets.UTF_8)).toString();
1232         } catch (URISyntaxException e) {
1233             throw new AssertionError(e);
1234         }
1235     }
1236
1237     public void requestAllSyncData() throws IOException {
1238         requestSyncGroups();
1239         requestSyncContacts();
1240         requestSyncBlocked();
1241         requestSyncConfiguration();
1242         requestSyncKeys();
1243     }
1244
1245     private void requestSyncGroups() throws IOException {
1246         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1247                 .setType(SignalServiceProtos.SyncMessage.Request.Type.GROUPS)
1248                 .build();
1249         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1250         try {
1251             sendSyncMessage(message);
1252         } catch (UntrustedIdentityException e) {
1253             throw new AssertionError(e);
1254         }
1255     }
1256
1257     private void requestSyncContacts() throws IOException {
1258         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1259                 .setType(SignalServiceProtos.SyncMessage.Request.Type.CONTACTS)
1260                 .build();
1261         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1262         try {
1263             sendSyncMessage(message);
1264         } catch (UntrustedIdentityException e) {
1265             throw new AssertionError(e);
1266         }
1267     }
1268
1269     private void requestSyncBlocked() throws IOException {
1270         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1271                 .setType(SignalServiceProtos.SyncMessage.Request.Type.BLOCKED)
1272                 .build();
1273         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1274         try {
1275             sendSyncMessage(message);
1276         } catch (UntrustedIdentityException e) {
1277             throw new AssertionError(e);
1278         }
1279     }
1280
1281     private void requestSyncConfiguration() throws IOException {
1282         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1283                 .setType(SignalServiceProtos.SyncMessage.Request.Type.CONFIGURATION)
1284                 .build();
1285         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1286         try {
1287             sendSyncMessage(message);
1288         } catch (UntrustedIdentityException e) {
1289             throw new AssertionError(e);
1290         }
1291     }
1292
1293     private void requestSyncKeys() throws IOException {
1294         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1295                 .setType(SignalServiceProtos.SyncMessage.Request.Type.KEYS)
1296                 .build();
1297         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1298         try {
1299             sendSyncMessage(message);
1300         } catch (UntrustedIdentityException e) {
1301             throw new AssertionError(e);
1302         }
1303     }
1304
1305     private byte[] getSenderCertificate() {
1306         byte[] certificate;
1307         try {
1308             if (account.isPhoneNumberShared()) {
1309                 certificate = accountManager.getSenderCertificate();
1310             } else {
1311                 certificate = accountManager.getSenderCertificateForPhoneNumberPrivacy();
1312             }
1313         } catch (IOException e) {
1314             logger.warn("Failed to get sender certificate, ignoring: {}", e.getMessage());
1315             return null;
1316         }
1317         // TODO cache for a day
1318         return certificate;
1319     }
1320
1321     private void sendSyncMessage(SignalServiceSyncMessage message) throws IOException, UntrustedIdentityException {
1322         var messageSender = createMessageSender();
1323         messageSender.sendMessage(message, unidentifiedAccessHelper.getAccessForSync());
1324     }
1325
1326     private Set<RecipientId> getSignalServiceAddresses(Collection<String> numbers) throws InvalidNumberException {
1327         final var signalServiceAddresses = new HashSet<SignalServiceAddress>(numbers.size());
1328         final var addressesMissingUuid = new HashSet<SignalServiceAddress>();
1329
1330         for (var number : numbers) {
1331             final var resolvedAddress = resolveSignalServiceAddress(canonicalizeAndResolveRecipient(number));
1332             if (resolvedAddress.getUuid().isPresent()) {
1333                 signalServiceAddresses.add(resolvedAddress);
1334             } else {
1335                 addressesMissingUuid.add(resolvedAddress);
1336             }
1337         }
1338
1339         final var numbersMissingUuid = addressesMissingUuid.stream()
1340                 .map(a -> a.getNumber().get())
1341                 .collect(Collectors.toSet());
1342         Map<String, UUID> registeredUsers;
1343         try {
1344             registeredUsers = getRegisteredUsers(numbersMissingUuid);
1345         } catch (IOException e) {
1346             logger.warn("Failed to resolve uuids from server, ignoring: {}", e.getMessage());
1347             registeredUsers = Map.of();
1348         }
1349
1350         for (var address : addressesMissingUuid) {
1351             final var number = address.getNumber().get();
1352             if (registeredUsers.containsKey(number)) {
1353                 final var newAddress = resolveSignalServiceAddress(resolveRecipientTrusted(new SignalServiceAddress(
1354                         registeredUsers.get(number),
1355                         number)));
1356                 signalServiceAddresses.add(newAddress);
1357             } else {
1358                 signalServiceAddresses.add(address);
1359             }
1360         }
1361
1362         return signalServiceAddresses.stream().map(this::resolveRecipient).collect(Collectors.toSet());
1363     }
1364
1365     private RecipientId refreshRegisteredUser(RecipientId recipientId) throws IOException {
1366         final var address = resolveSignalServiceAddress(recipientId);
1367         if (!address.getNumber().isPresent()) {
1368             return recipientId;
1369         }
1370         final var number = address.getNumber().get();
1371         final var uuidMap = getRegisteredUsers(Set.of(number));
1372         return resolveRecipientTrusted(new SignalServiceAddress(uuidMap.getOrDefault(number, null), number));
1373     }
1374
1375     private Map<String, UUID> getRegisteredUsers(final Set<String> numbers) throws IOException {
1376         try {
1377             return accountManager.getRegisteredUsers(ServiceConfig.getIasKeyStore(),
1378                     numbers,
1379                     serviceEnvironmentConfig.getCdsMrenclave());
1380         } catch (Quote.InvalidQuoteFormatException | UnauthenticatedQuoteException | SignatureException | UnauthenticatedResponseException | InvalidKeyException e) {
1381             throw new IOException(e);
1382         }
1383     }
1384
1385     private Pair<Long, List<SendMessageResult>> sendMessage(
1386             SignalServiceDataMessage.Builder messageBuilder, Set<RecipientId> recipientIds
1387     ) throws IOException {
1388         final var timestamp = System.currentTimeMillis();
1389         messageBuilder.withTimestamp(timestamp);
1390         getOrCreateMessagePipe();
1391         getOrCreateUnidentifiedMessagePipe();
1392         SignalServiceDataMessage message = null;
1393         try {
1394             message = messageBuilder.build();
1395             if (message.getGroupContext().isPresent()) {
1396                 try {
1397                     var messageSender = createMessageSender();
1398                     final var isRecipientUpdate = false;
1399                     final var recipientIdList = new ArrayList<>(recipientIds);
1400                     final var addresses = recipientIdList.stream()
1401                             .map(this::resolveSignalServiceAddress)
1402                             .collect(Collectors.toList());
1403                     var result = messageSender.sendMessage(addresses,
1404                             unidentifiedAccessHelper.getAccessFor(recipientIdList),
1405                             isRecipientUpdate,
1406                             message);
1407
1408                     for (var r : result) {
1409                         if (r.getIdentityFailure() != null) {
1410                             final var recipientId = resolveRecipient(r.getAddress());
1411                             final var newIdentity = account.getIdentityKeyStore()
1412                                     .saveIdentity(recipientId, r.getIdentityFailure().getIdentityKey(), new Date());
1413                             if (newIdentity) {
1414                                 account.getSessionStore().archiveSessions(recipientId);
1415                             }
1416                         }
1417                     }
1418
1419                     return new Pair<>(timestamp, result);
1420                 } catch (UntrustedIdentityException e) {
1421                     return new Pair<>(timestamp, List.of());
1422                 }
1423             } else {
1424                 // Send to all individually, so sync messages are sent correctly
1425                 messageBuilder.withProfileKey(account.getProfileKey().serialize());
1426                 var results = new ArrayList<SendMessageResult>(recipientIds.size());
1427                 for (var recipientId : recipientIds) {
1428                     final var contact = account.getContactStore().getContact(recipientId);
1429                     final var expirationTime = contact != null ? contact.getMessageExpirationTime() : 0;
1430                     messageBuilder.withExpiration(expirationTime);
1431                     message = messageBuilder.build();
1432                     results.add(sendMessage(recipientId, message));
1433                 }
1434                 return new Pair<>(timestamp, results);
1435             }
1436         } finally {
1437             if (message != null && message.isEndSession()) {
1438                 for (var recipient : recipientIds) {
1439                     handleEndSession(recipient);
1440                 }
1441             }
1442         }
1443     }
1444
1445     private Pair<Long, SendMessageResult> sendSelfMessage(
1446             SignalServiceDataMessage.Builder messageBuilder
1447     ) throws IOException {
1448         final var timestamp = System.currentTimeMillis();
1449         messageBuilder.withTimestamp(timestamp);
1450         getOrCreateMessagePipe();
1451         getOrCreateUnidentifiedMessagePipe();
1452         final var recipientId = account.getSelfRecipientId();
1453
1454         final var contact = account.getContactStore().getContact(recipientId);
1455         final var expirationTime = contact != null ? contact.getMessageExpirationTime() : 0;
1456         messageBuilder.withExpiration(expirationTime);
1457
1458         var message = messageBuilder.build();
1459         final var result = sendSelfMessage(message);
1460         return new Pair<>(timestamp, result);
1461     }
1462
1463     private SendMessageResult sendSelfMessage(SignalServiceDataMessage message) throws IOException {
1464         var messageSender = createMessageSender();
1465
1466         var recipientId = account.getSelfRecipientId();
1467
1468         final var unidentifiedAccess = unidentifiedAccessHelper.getAccessFor(recipientId);
1469         var recipient = resolveSignalServiceAddress(recipientId);
1470         var transcript = new SentTranscriptMessage(Optional.of(recipient),
1471                 message.getTimestamp(),
1472                 message,
1473                 message.getExpiresInSeconds(),
1474                 Map.of(recipient, unidentifiedAccess.isPresent()),
1475                 false);
1476         var syncMessage = SignalServiceSyncMessage.forSentTranscript(transcript);
1477
1478         try {
1479             var startTime = System.currentTimeMillis();
1480             messageSender.sendMessage(syncMessage, unidentifiedAccess);
1481             return SendMessageResult.success(recipient,
1482                     unidentifiedAccess.isPresent(),
1483                     false,
1484                     System.currentTimeMillis() - startTime);
1485         } catch (UntrustedIdentityException e) {
1486             return SendMessageResult.identityFailure(recipient, e.getIdentityKey());
1487         }
1488     }
1489
1490     private SendMessageResult sendMessage(
1491             RecipientId recipientId, SignalServiceDataMessage message
1492     ) throws IOException {
1493         var messageSender = createMessageSender();
1494
1495         final var address = resolveSignalServiceAddress(recipientId);
1496         try {
1497             try {
1498                 return messageSender.sendMessage(address, unidentifiedAccessHelper.getAccessFor(recipientId), message);
1499             } catch (UnregisteredUserException e) {
1500                 final var newRecipientId = refreshRegisteredUser(recipientId);
1501                 return messageSender.sendMessage(resolveSignalServiceAddress(newRecipientId),
1502                         unidentifiedAccessHelper.getAccessFor(newRecipientId),
1503                         message);
1504             }
1505         } catch (UntrustedIdentityException e) {
1506             return SendMessageResult.identityFailure(address, e.getIdentityKey());
1507         }
1508     }
1509
1510     private SendMessageResult sendNullMessage(RecipientId recipientId) throws IOException {
1511         var messageSender = createMessageSender();
1512
1513         final var address = resolveSignalServiceAddress(recipientId);
1514         try {
1515             try {
1516                 return messageSender.sendNullMessage(address, unidentifiedAccessHelper.getAccessFor(recipientId));
1517             } catch (UnregisteredUserException e) {
1518                 final var newRecipientId = refreshRegisteredUser(recipientId);
1519                 final var newAddress = resolveSignalServiceAddress(newRecipientId);
1520                 return messageSender.sendNullMessage(newAddress, unidentifiedAccessHelper.getAccessFor(newRecipientId));
1521             }
1522         } catch (UntrustedIdentityException e) {
1523             return SendMessageResult.identityFailure(address, e.getIdentityKey());
1524         }
1525     }
1526
1527     private SignalServiceContent decryptMessage(SignalServiceEnvelope envelope) throws InvalidMetadataMessageException, ProtocolInvalidMessageException, ProtocolDuplicateMessageException, ProtocolLegacyMessageException, ProtocolInvalidKeyIdException, InvalidMetadataVersionException, ProtocolInvalidVersionException, ProtocolNoSessionException, ProtocolInvalidKeyException, SelfSendException, UnsupportedDataMessageException, ProtocolUntrustedIdentityException {
1528         var cipher = new SignalServiceCipher(account.getSelfAddress(),
1529                 account.getSignalProtocolStore(),
1530                 sessionLock,
1531                 certificateValidator);
1532         return cipher.decrypt(envelope);
1533     }
1534
1535     private void handleEndSession(RecipientId recipientId) {
1536         account.getSessionStore().deleteAllSessions(recipientId);
1537     }
1538
1539     private List<HandleAction> handleSignalServiceDataMessage(
1540             SignalServiceDataMessage message,
1541             boolean isSync,
1542             SignalServiceAddress source,
1543             SignalServiceAddress destination,
1544             boolean ignoreAttachments
1545     ) {
1546         var actions = new ArrayList<HandleAction>();
1547         if (message.getGroupContext().isPresent()) {
1548             if (message.getGroupContext().get().getGroupV1().isPresent()) {
1549                 var groupInfo = message.getGroupContext().get().getGroupV1().get();
1550                 var groupId = GroupId.v1(groupInfo.getGroupId());
1551                 var group = getGroup(groupId);
1552                 if (group == null || group instanceof GroupInfoV1) {
1553                     var groupV1 = (GroupInfoV1) group;
1554                     switch (groupInfo.getType()) {
1555                         case UPDATE: {
1556                             if (groupV1 == null) {
1557                                 groupV1 = new GroupInfoV1(groupId);
1558                             }
1559
1560                             if (groupInfo.getAvatar().isPresent()) {
1561                                 var avatar = groupInfo.getAvatar().get();
1562                                 downloadGroupAvatar(avatar, groupV1.getGroupId());
1563                             }
1564
1565                             if (groupInfo.getName().isPresent()) {
1566                                 groupV1.name = groupInfo.getName().get();
1567                             }
1568
1569                             if (groupInfo.getMembers().isPresent()) {
1570                                 groupV1.addMembers(groupInfo.getMembers()
1571                                         .get()
1572                                         .stream()
1573                                         .map(this::resolveRecipient)
1574                                         .collect(Collectors.toSet()));
1575                             }
1576
1577                             account.getGroupStore().updateGroup(groupV1);
1578                             break;
1579                         }
1580                         case DELIVER:
1581                             if (groupV1 == null && !isSync) {
1582                                 actions.add(new SendGroupInfoRequestAction(source, groupId));
1583                             }
1584                             break;
1585                         case QUIT: {
1586                             if (groupV1 != null) {
1587                                 groupV1.removeMember(resolveRecipient(source));
1588                                 account.getGroupStore().updateGroup(groupV1);
1589                             }
1590                             break;
1591                         }
1592                         case REQUEST_INFO:
1593                             if (groupV1 != null && !isSync) {
1594                                 actions.add(new SendGroupInfoAction(source, groupV1.getGroupId()));
1595                             }
1596                             break;
1597                     }
1598                 } else {
1599                     // Received a group v1 message for a v2 group
1600                 }
1601             }
1602             if (message.getGroupContext().get().getGroupV2().isPresent()) {
1603                 final var groupContext = message.getGroupContext().get().getGroupV2().get();
1604                 final var groupMasterKey = groupContext.getMasterKey();
1605
1606                 getOrMigrateGroup(groupMasterKey,
1607                         groupContext.getRevision(),
1608                         groupContext.hasSignedGroupChange() ? groupContext.getSignedGroupChange() : null);
1609             }
1610         }
1611
1612         final var conversationPartnerAddress = isSync ? destination : source;
1613         if (conversationPartnerAddress != null && message.isEndSession()) {
1614             handleEndSession(resolveRecipient(conversationPartnerAddress));
1615         }
1616         if (message.isExpirationUpdate() || message.getBody().isPresent()) {
1617             if (message.getGroupContext().isPresent()) {
1618                 if (message.getGroupContext().get().getGroupV1().isPresent()) {
1619                     var groupInfo = message.getGroupContext().get().getGroupV1().get();
1620                     var group = account.getGroupStore().getOrCreateGroupV1(GroupId.v1(groupInfo.getGroupId()));
1621                     if (group != null) {
1622                         if (group.messageExpirationTime != message.getExpiresInSeconds()) {
1623                             group.messageExpirationTime = message.getExpiresInSeconds();
1624                             account.getGroupStore().updateGroup(group);
1625                         }
1626                     }
1627                 } else if (message.getGroupContext().get().getGroupV2().isPresent()) {
1628                     // disappearing message timer already stored in the DecryptedGroup
1629                 }
1630             } else if (conversationPartnerAddress != null) {
1631                 setExpirationTimer(resolveRecipient(conversationPartnerAddress), message.getExpiresInSeconds());
1632             }
1633         }
1634         if (!ignoreAttachments) {
1635             if (message.getAttachments().isPresent()) {
1636                 for (var attachment : message.getAttachments().get()) {
1637                     downloadAttachment(attachment);
1638                 }
1639             }
1640             if (message.getSharedContacts().isPresent()) {
1641                 for (var contact : message.getSharedContacts().get()) {
1642                     if (contact.getAvatar().isPresent()) {
1643                         downloadAttachment(contact.getAvatar().get().getAttachment());
1644                     }
1645                 }
1646             }
1647         }
1648         if (message.getProfileKey().isPresent() && message.getProfileKey().get().length == 32) {
1649             final ProfileKey profileKey;
1650             try {
1651                 profileKey = new ProfileKey(message.getProfileKey().get());
1652             } catch (InvalidInputException e) {
1653                 throw new AssertionError(e);
1654             }
1655             if (source.matches(account.getSelfAddress())) {
1656                 this.account.setProfileKey(profileKey);
1657             }
1658             this.account.getProfileStore().storeProfileKey(resolveRecipient(source), profileKey);
1659         }
1660         if (message.getPreviews().isPresent()) {
1661             final var previews = message.getPreviews().get();
1662             for (var preview : previews) {
1663                 if (preview.getImage().isPresent()) {
1664                     downloadAttachment(preview.getImage().get());
1665                 }
1666             }
1667         }
1668         if (message.getQuote().isPresent()) {
1669             final var quote = message.getQuote().get();
1670
1671             for (var quotedAttachment : quote.getAttachments()) {
1672                 final var thumbnail = quotedAttachment.getThumbnail();
1673                 if (thumbnail != null) {
1674                     downloadAttachment(thumbnail);
1675                 }
1676             }
1677         }
1678         if (message.getSticker().isPresent()) {
1679             final var messageSticker = message.getSticker().get();
1680             final var stickerPackId = StickerPackId.deserialize(messageSticker.getPackId());
1681             var sticker = account.getStickerStore().getSticker(stickerPackId);
1682             if (sticker == null) {
1683                 sticker = new Sticker(stickerPackId, messageSticker.getPackKey());
1684                 account.getStickerStore().updateSticker(sticker);
1685             }
1686         }
1687         return actions;
1688     }
1689
1690     private GroupInfoV2 getOrMigrateGroup(
1691             final GroupMasterKey groupMasterKey, final int revision, final byte[] signedGroupChange
1692     ) {
1693         final var groupSecretParams = GroupSecretParams.deriveFromMasterKey(groupMasterKey);
1694
1695         var groupId = GroupUtils.getGroupIdV2(groupSecretParams);
1696         var groupInfo = getGroup(groupId);
1697         final GroupInfoV2 groupInfoV2;
1698         if (groupInfo instanceof GroupInfoV1) {
1699             // Received a v2 group message for a v1 group, we need to locally migrate the group
1700             account.getGroupStore().deleteGroupV1(((GroupInfoV1) groupInfo).getGroupId());
1701             groupInfoV2 = new GroupInfoV2(groupId, groupMasterKey);
1702             logger.info("Locally migrated group {} to group v2, id: {}",
1703                     groupInfo.getGroupId().toBase64(),
1704                     groupInfoV2.getGroupId().toBase64());
1705         } else if (groupInfo instanceof GroupInfoV2) {
1706             groupInfoV2 = (GroupInfoV2) groupInfo;
1707         } else {
1708             groupInfoV2 = new GroupInfoV2(groupId, groupMasterKey);
1709         }
1710
1711         if (groupInfoV2.getGroup() == null || groupInfoV2.getGroup().getRevision() < revision) {
1712             DecryptedGroup group = null;
1713             if (signedGroupChange != null
1714                     && groupInfoV2.getGroup() != null
1715                     && groupInfoV2.getGroup().getRevision() + 1 == revision) {
1716                 group = groupHelper.getUpdatedDecryptedGroup(groupInfoV2.getGroup(), signedGroupChange, groupMasterKey);
1717             }
1718             if (group == null) {
1719                 group = groupHelper.getDecryptedGroup(groupSecretParams);
1720             }
1721             if (group != null) {
1722                 storeProfileKeysFromMembers(group);
1723                 final var avatar = group.getAvatar();
1724                 if (avatar != null && !avatar.isEmpty()) {
1725                     downloadGroupAvatar(groupId, groupSecretParams, avatar);
1726                 }
1727             }
1728             groupInfoV2.setGroup(group, this::resolveRecipient);
1729             account.getGroupStore().updateGroup(groupInfoV2);
1730         }
1731
1732         return groupInfoV2;
1733     }
1734
1735     private void storeProfileKeysFromMembers(final DecryptedGroup group) {
1736         for (var member : group.getMembersList()) {
1737             final var uuid = UuidUtil.parseOrThrow(member.getUuid().toByteArray());
1738             final var recipientId = account.getRecipientStore().resolveRecipient(uuid);
1739             try {
1740                 account.getProfileStore()
1741                         .storeProfileKey(recipientId, new ProfileKey(member.getProfileKey().toByteArray()));
1742             } catch (InvalidInputException ignored) {
1743             }
1744         }
1745     }
1746
1747     private void retryFailedReceivedMessages(ReceiveMessageHandler handler, boolean ignoreAttachments) {
1748         Set<HandleAction> queuedActions = new HashSet<>();
1749         for (var cachedMessage : account.getMessageCache().getCachedMessages()) {
1750             var actions = retryFailedReceivedMessage(handler, ignoreAttachments, cachedMessage);
1751             if (actions != null) {
1752                 queuedActions.addAll(actions);
1753             }
1754         }
1755         for (var action : queuedActions) {
1756             try {
1757                 action.execute(this);
1758             } catch (Throwable e) {
1759                 logger.warn("Message action failed.", e);
1760             }
1761         }
1762     }
1763
1764     private List<HandleAction> retryFailedReceivedMessage(
1765             final ReceiveMessageHandler handler, final boolean ignoreAttachments, final CachedMessage cachedMessage
1766     ) {
1767         var envelope = cachedMessage.loadEnvelope();
1768         if (envelope == null) {
1769             return null;
1770         }
1771         SignalServiceContent content = null;
1772         List<HandleAction> actions = null;
1773         if (!envelope.isReceipt()) {
1774             try {
1775                 content = decryptMessage(envelope);
1776             } catch (ProtocolUntrustedIdentityException e) {
1777                 if (!envelope.hasSource()) {
1778                     final var identifier = e.getSender();
1779                     final var recipientId = resolveRecipient(identifier);
1780                     try {
1781                         account.getMessageCache().replaceSender(cachedMessage, recipientId);
1782                     } catch (IOException ioException) {
1783                         logger.warn("Failed to move cached message to recipient folder: {}", ioException.getMessage());
1784                     }
1785                 }
1786                 return null;
1787             } catch (Exception er) {
1788                 // All other errors are not recoverable, so delete the cached message
1789                 cachedMessage.delete();
1790                 return null;
1791             }
1792             actions = handleMessage(envelope, content, ignoreAttachments);
1793         }
1794         handler.handleMessage(envelope, content, null);
1795         cachedMessage.delete();
1796         return actions;
1797     }
1798
1799     public void receiveMessages(
1800             long timeout,
1801             TimeUnit unit,
1802             boolean returnOnTimeout,
1803             boolean ignoreAttachments,
1804             ReceiveMessageHandler handler
1805     ) throws IOException {
1806         retryFailedReceivedMessages(handler, ignoreAttachments);
1807
1808         Set<HandleAction> queuedActions = null;
1809
1810         final var messagePipe = getOrCreateMessagePipe();
1811
1812         var hasCaughtUpWithOldMessages = false;
1813
1814         while (true) {
1815             SignalServiceEnvelope envelope;
1816             SignalServiceContent content = null;
1817             Exception exception = null;
1818             final CachedMessage[] cachedMessage = {null};
1819             try {
1820                 var result = messagePipe.readOrEmpty(timeout, unit, envelope1 -> {
1821                     final var recipientId = envelope1.hasSource()
1822                             ? resolveRecipient(envelope1.getSourceIdentifier())
1823                             : null;
1824                     // store message on disk, before acknowledging receipt to the server
1825                     cachedMessage[0] = account.getMessageCache().cacheMessage(envelope1, recipientId);
1826                 });
1827                 if (result.isPresent()) {
1828                     envelope = result.get();
1829                 } else {
1830                     // Received indicator that server queue is empty
1831                     hasCaughtUpWithOldMessages = true;
1832
1833                     if (queuedActions != null) {
1834                         for (var action : queuedActions) {
1835                             try {
1836                                 action.execute(this);
1837                             } catch (Throwable e) {
1838                                 logger.warn("Message action failed.", e);
1839                             }
1840                         }
1841                         queuedActions.clear();
1842                         queuedActions = null;
1843                     }
1844
1845                     // Continue to wait another timeout for new messages
1846                     continue;
1847                 }
1848             } catch (TimeoutException e) {
1849                 if (returnOnTimeout) return;
1850                 continue;
1851             }
1852
1853             if (envelope.hasSource()) {
1854                 // Store uuid if we don't have it already
1855                 // address/uuid in envelope is sent by server
1856                 resolveRecipientTrusted(envelope.getSourceAddress());
1857             }
1858             final var notAGroupMember = isNotAGroupMember(envelope, content);
1859             if (!envelope.isReceipt()) {
1860                 try {
1861                     content = decryptMessage(envelope);
1862                 } catch (Exception e) {
1863                     exception = e;
1864                 }
1865                 if (!envelope.hasSource() && content != null) {
1866                     // Store uuid if we don't have it already
1867                     // address/uuid is validated by unidentified sender certificate
1868                     resolveRecipientTrusted(content.getSender());
1869                 }
1870                 var actions = handleMessage(envelope, content, ignoreAttachments);
1871                 if (exception instanceof ProtocolInvalidMessageException) {
1872                     final var sender = resolveRecipient(((ProtocolInvalidMessageException) exception).getSender());
1873                     logger.debug("Received invalid message, queuing renew session action.");
1874                     actions.add(new RenewSessionAction(sender));
1875                 }
1876                 if (hasCaughtUpWithOldMessages) {
1877                     for (var action : actions) {
1878                         try {
1879                             action.execute(this);
1880                         } catch (Throwable e) {
1881                             logger.warn("Message action failed.", e);
1882                         }
1883                     }
1884                 } else {
1885                     if (queuedActions == null) {
1886                         queuedActions = new HashSet<>();
1887                     }
1888                     queuedActions.addAll(actions);
1889                 }
1890             }
1891             if (isMessageBlocked(envelope, content)) {
1892                 logger.info("Ignoring a message from blocked user/group: {}", envelope.getTimestamp());
1893             } else if (notAGroupMember) {
1894                 logger.info("Ignoring a message from a non group member: {}", envelope.getTimestamp());
1895             } else {
1896                 handler.handleMessage(envelope, content, exception);
1897             }
1898             if (cachedMessage[0] != null) {
1899                 if (exception instanceof ProtocolUntrustedIdentityException) {
1900                     final var identifier = ((ProtocolUntrustedIdentityException) exception).getSender();
1901                     final var recipientId = resolveRecipient(identifier);
1902                     queuedActions.add(new RetrieveProfileAction(recipientId));
1903                     if (!envelope.hasSource()) {
1904                         try {
1905                             cachedMessage[0] = account.getMessageCache().replaceSender(cachedMessage[0], recipientId);
1906                         } catch (IOException ioException) {
1907                             logger.warn("Failed to move cached message to recipient folder: {}",
1908                                     ioException.getMessage());
1909                         }
1910                     }
1911                 } else {
1912                     cachedMessage[0].delete();
1913                 }
1914             }
1915         }
1916     }
1917
1918     private boolean isMessageBlocked(
1919             SignalServiceEnvelope envelope, SignalServiceContent content
1920     ) {
1921         SignalServiceAddress source;
1922         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1923             source = envelope.getSourceAddress();
1924         } else if (content != null) {
1925             source = content.getSender();
1926         } else {
1927             return false;
1928         }
1929         final var recipientId = resolveRecipient(source);
1930         if (isContactBlocked(recipientId)) {
1931             return true;
1932         }
1933
1934         if (content != null && content.getDataMessage().isPresent()) {
1935             var message = content.getDataMessage().get();
1936             if (message.getGroupContext().isPresent()) {
1937                 var groupId = GroupUtils.getGroupId(message.getGroupContext().get());
1938                 var group = getGroup(groupId);
1939                 if (group != null && group.isBlocked()) {
1940                     return true;
1941                 }
1942             }
1943         }
1944         return false;
1945     }
1946
1947     public boolean isContactBlocked(final String identifier) throws InvalidNumberException {
1948         final var recipientId = canonicalizeAndResolveRecipient(identifier);
1949         return isContactBlocked(recipientId);
1950     }
1951
1952     private boolean isContactBlocked(final RecipientId recipientId) {
1953         var sourceContact = account.getContactStore().getContact(recipientId);
1954         return sourceContact != null && sourceContact.isBlocked();
1955     }
1956
1957     private boolean isNotAGroupMember(
1958             SignalServiceEnvelope envelope, SignalServiceContent content
1959     ) {
1960         SignalServiceAddress source;
1961         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1962             source = envelope.getSourceAddress();
1963         } else if (content != null) {
1964             source = content.getSender();
1965         } else {
1966             return false;
1967         }
1968
1969         if (content != null && content.getDataMessage().isPresent()) {
1970             var message = content.getDataMessage().get();
1971             if (message.getGroupContext().isPresent()) {
1972                 if (message.getGroupContext().get().getGroupV1().isPresent()) {
1973                     var groupInfo = message.getGroupContext().get().getGroupV1().get();
1974                     if (groupInfo.getType() == SignalServiceGroup.Type.QUIT) {
1975                         return false;
1976                     }
1977                 }
1978                 var groupId = GroupUtils.getGroupId(message.getGroupContext().get());
1979                 var group = getGroup(groupId);
1980                 if (group != null && !group.isMember(resolveRecipient(source))) {
1981                     return true;
1982                 }
1983             }
1984         }
1985         return false;
1986     }
1987
1988     private List<HandleAction> handleMessage(
1989             SignalServiceEnvelope envelope, SignalServiceContent content, boolean ignoreAttachments
1990     ) {
1991         var actions = new ArrayList<HandleAction>();
1992         if (content != null) {
1993             final SignalServiceAddress sender;
1994             if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1995                 sender = envelope.getSourceAddress();
1996             } else {
1997                 sender = content.getSender();
1998             }
1999
2000             if (content.getDataMessage().isPresent()) {
2001                 var message = content.getDataMessage().get();
2002
2003                 if (content.isNeedsReceipt()) {
2004                     actions.add(new SendReceiptAction(sender, message.getTimestamp()));
2005                 }
2006
2007                 actions.addAll(handleSignalServiceDataMessage(message,
2008                         false,
2009                         sender,
2010                         account.getSelfAddress(),
2011                         ignoreAttachments));
2012             }
2013             if (content.getSyncMessage().isPresent()) {
2014                 account.setMultiDevice(true);
2015                 var syncMessage = content.getSyncMessage().get();
2016                 if (syncMessage.getSent().isPresent()) {
2017                     var message = syncMessage.getSent().get();
2018                     final var destination = message.getDestination().orNull();
2019                     actions.addAll(handleSignalServiceDataMessage(message.getMessage(),
2020                             true,
2021                             sender,
2022                             destination,
2023                             ignoreAttachments));
2024                 }
2025                 if (syncMessage.getRequest().isPresent() && account.isMasterDevice()) {
2026                     var rm = syncMessage.getRequest().get();
2027                     if (rm.isContactsRequest()) {
2028                         actions.add(SendSyncContactsAction.create());
2029                     }
2030                     if (rm.isGroupsRequest()) {
2031                         actions.add(SendSyncGroupsAction.create());
2032                     }
2033                     if (rm.isBlockedListRequest()) {
2034                         actions.add(SendSyncBlockedListAction.create());
2035                     }
2036                     // TODO Handle rm.isConfigurationRequest(); rm.isKeysRequest();
2037                 }
2038                 if (syncMessage.getGroups().isPresent()) {
2039                     File tmpFile = null;
2040                     try {
2041                         tmpFile = IOUtils.createTempFile();
2042                         final var groupsMessage = syncMessage.getGroups().get();
2043                         try (var attachmentAsStream = retrieveAttachmentAsStream(groupsMessage.asPointer(), tmpFile)) {
2044                             var s = new DeviceGroupsInputStream(attachmentAsStream);
2045                             DeviceGroup g;
2046                             while ((g = s.read()) != null) {
2047                                 var syncGroup = account.getGroupStore().getOrCreateGroupV1(GroupId.v1(g.getId()));
2048                                 if (syncGroup != null) {
2049                                     if (g.getName().isPresent()) {
2050                                         syncGroup.name = g.getName().get();
2051                                     }
2052                                     syncGroup.addMembers(g.getMembers()
2053                                             .stream()
2054                                             .map(this::resolveRecipient)
2055                                             .collect(Collectors.toSet()));
2056                                     if (!g.isActive()) {
2057                                         syncGroup.removeMember(account.getSelfRecipientId());
2058                                     } else {
2059                                         // Add ourself to the member set as it's marked as active
2060                                         syncGroup.addMembers(List.of(account.getSelfRecipientId()));
2061                                     }
2062                                     syncGroup.blocked = g.isBlocked();
2063                                     if (g.getColor().isPresent()) {
2064                                         syncGroup.color = g.getColor().get();
2065                                     }
2066
2067                                     if (g.getAvatar().isPresent()) {
2068                                         downloadGroupAvatar(g.getAvatar().get(), syncGroup.getGroupId());
2069                                     }
2070                                     syncGroup.archived = g.isArchived();
2071                                     account.getGroupStore().updateGroup(syncGroup);
2072                                 }
2073                             }
2074                         }
2075                     } catch (Exception e) {
2076                         logger.warn("Failed to handle received sync groups “{}”, ignoring: {}",
2077                                 tmpFile,
2078                                 e.getMessage());
2079                     } finally {
2080                         if (tmpFile != null) {
2081                             try {
2082                                 Files.delete(tmpFile.toPath());
2083                             } catch (IOException e) {
2084                                 logger.warn("Failed to delete received groups temp file “{}”, ignoring: {}",
2085                                         tmpFile,
2086                                         e.getMessage());
2087                             }
2088                         }
2089                     }
2090                 }
2091                 if (syncMessage.getBlockedList().isPresent()) {
2092                     final var blockedListMessage = syncMessage.getBlockedList().get();
2093                     for (var address : blockedListMessage.getAddresses()) {
2094                         setContactBlocked(resolveRecipient(address), true);
2095                     }
2096                     for (var groupId : blockedListMessage.getGroupIds()
2097                             .stream()
2098                             .map(GroupId::unknownVersion)
2099                             .collect(Collectors.toSet())) {
2100                         try {
2101                             setGroupBlocked(groupId, true);
2102                         } catch (GroupNotFoundException e) {
2103                             logger.warn("BlockedListMessage contained groupID that was not found in GroupStore: {}",
2104                                     groupId.toBase64());
2105                         }
2106                     }
2107                 }
2108                 if (syncMessage.getContacts().isPresent()) {
2109                     File tmpFile = null;
2110                     try {
2111                         tmpFile = IOUtils.createTempFile();
2112                         final var contactsMessage = syncMessage.getContacts().get();
2113                         try (var attachmentAsStream = retrieveAttachmentAsStream(contactsMessage.getContactsStream()
2114                                 .asPointer(), tmpFile)) {
2115                             var s = new DeviceContactsInputStream(attachmentAsStream);
2116                             DeviceContact c;
2117                             while ((c = s.read()) != null) {
2118                                 if (c.getAddress().matches(account.getSelfAddress()) && c.getProfileKey().isPresent()) {
2119                                     account.setProfileKey(c.getProfileKey().get());
2120                                 }
2121                                 final var recipientId = resolveRecipientTrusted(c.getAddress());
2122                                 var contact = account.getContactStore().getContact(recipientId);
2123                                 final var builder = contact == null
2124                                         ? Contact.newBuilder()
2125                                         : Contact.newBuilder(contact);
2126                                 if (c.getName().isPresent()) {
2127                                     builder.withName(c.getName().get());
2128                                 }
2129                                 if (c.getColor().isPresent()) {
2130                                     builder.withColor(c.getColor().get());
2131                                 }
2132                                 if (c.getProfileKey().isPresent()) {
2133                                     account.getProfileStore().storeProfileKey(recipientId, c.getProfileKey().get());
2134                                 }
2135                                 if (c.getVerified().isPresent()) {
2136                                     final var verifiedMessage = c.getVerified().get();
2137                                     account.getIdentityKeyStore()
2138                                             .setIdentityTrustLevel(resolveRecipientTrusted(verifiedMessage.getDestination()),
2139                                                     verifiedMessage.getIdentityKey(),
2140                                                     TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
2141                                 }
2142                                 if (c.getExpirationTimer().isPresent()) {
2143                                     builder.withMessageExpirationTime(c.getExpirationTimer().get());
2144                                 }
2145                                 builder.withBlocked(c.isBlocked());
2146                                 builder.withArchived(c.isArchived());
2147                                 account.getContactStore().storeContact(recipientId, builder.build());
2148
2149                                 if (c.getAvatar().isPresent()) {
2150                                     downloadContactAvatar(c.getAvatar().get(), c.getAddress());
2151                                 }
2152                             }
2153                         }
2154                     } catch (Exception e) {
2155                         logger.warn("Failed to handle received sync contacts “{}”, 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 contacts temp file “{}”, ignoring: {}",
2164                                         tmpFile,
2165                                         e.getMessage());
2166                             }
2167                         }
2168                     }
2169                 }
2170                 if (syncMessage.getVerified().isPresent()) {
2171                     final var verifiedMessage = syncMessage.getVerified().get();
2172                     account.getIdentityKeyStore()
2173                             .setIdentityTrustLevel(resolveRecipientTrusted(verifiedMessage.getDestination()),
2174                                     verifiedMessage.getIdentityKey(),
2175                                     TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
2176                 }
2177                 if (syncMessage.getStickerPackOperations().isPresent()) {
2178                     final var stickerPackOperationMessages = syncMessage.getStickerPackOperations().get();
2179                     for (var m : stickerPackOperationMessages) {
2180                         if (!m.getPackId().isPresent()) {
2181                             continue;
2182                         }
2183                         final var stickerPackId = StickerPackId.deserialize(m.getPackId().get());
2184                         var sticker = account.getStickerStore().getSticker(stickerPackId);
2185                         if (sticker == null) {
2186                             if (!m.getPackKey().isPresent()) {
2187                                 continue;
2188                             }
2189                             sticker = new Sticker(stickerPackId, m.getPackKey().get());
2190                         }
2191                         sticker.setInstalled(!m.getType().isPresent()
2192                                 || m.getType().get() == StickerPackOperationMessage.Type.INSTALL);
2193                         account.getStickerStore().updateSticker(sticker);
2194                     }
2195                 }
2196                 if (syncMessage.getFetchType().isPresent()) {
2197                     switch (syncMessage.getFetchType().get()) {
2198                         case LOCAL_PROFILE:
2199                             getRecipientProfile(account.getSelfRecipientId(), true);
2200                         case STORAGE_MANIFEST:
2201                             // TODO
2202                     }
2203                 }
2204                 if (syncMessage.getKeys().isPresent()) {
2205                     final var keysMessage = syncMessage.getKeys().get();
2206                     if (keysMessage.getStorageService().isPresent()) {
2207                         final var storageKey = keysMessage.getStorageService().get();
2208                         account.setStorageKey(storageKey);
2209                     }
2210                 }
2211                 if (syncMessage.getConfiguration().isPresent()) {
2212                     // TODO
2213                 }
2214             }
2215         }
2216         return actions;
2217     }
2218
2219     private void downloadContactAvatar(SignalServiceAttachment avatar, SignalServiceAddress address) {
2220         try {
2221             avatarStore.storeContactAvatar(address, outputStream -> retrieveAttachment(avatar, outputStream));
2222         } catch (IOException e) {
2223             logger.warn("Failed to download avatar for contact {}, ignoring: {}", address, e.getMessage());
2224         }
2225     }
2226
2227     private void downloadGroupAvatar(SignalServiceAttachment avatar, GroupId groupId) {
2228         try {
2229             avatarStore.storeGroupAvatar(groupId, outputStream -> retrieveAttachment(avatar, outputStream));
2230         } catch (IOException e) {
2231             logger.warn("Failed to download avatar for group {}, ignoring: {}", groupId.toBase64(), e.getMessage());
2232         }
2233     }
2234
2235     private void downloadGroupAvatar(GroupId groupId, GroupSecretParams groupSecretParams, String cdnKey) {
2236         try {
2237             avatarStore.storeGroupAvatar(groupId,
2238                     outputStream -> retrieveGroupV2Avatar(groupSecretParams, cdnKey, outputStream));
2239         } catch (IOException e) {
2240             logger.warn("Failed to download avatar for group {}, ignoring: {}", groupId.toBase64(), e.getMessage());
2241         }
2242     }
2243
2244     private void downloadProfileAvatar(
2245             SignalServiceAddress address, String avatarPath, ProfileKey profileKey
2246     ) {
2247         try {
2248             avatarStore.storeProfileAvatar(address,
2249                     outputStream -> retrieveProfileAvatar(avatarPath, profileKey, outputStream));
2250         } catch (Throwable e) {
2251             logger.warn("Failed to download profile avatar, ignoring: {}", e.getMessage());
2252         }
2253     }
2254
2255     public File getAttachmentFile(SignalServiceAttachmentRemoteId attachmentId) {
2256         return attachmentStore.getAttachmentFile(attachmentId);
2257     }
2258
2259     private void downloadAttachment(final SignalServiceAttachment attachment) {
2260         if (!attachment.isPointer()) {
2261             logger.warn("Invalid state, can't store an attachment stream.");
2262         }
2263
2264         var pointer = attachment.asPointer();
2265         if (pointer.getPreview().isPresent()) {
2266             final var preview = pointer.getPreview().get();
2267             try {
2268                 attachmentStore.storeAttachmentPreview(pointer.getRemoteId(),
2269                         outputStream -> outputStream.write(preview, 0, preview.length));
2270             } catch (IOException e) {
2271                 logger.warn("Failed to download attachment preview, ignoring: {}", e.getMessage());
2272             }
2273         }
2274
2275         try {
2276             attachmentStore.storeAttachment(pointer.getRemoteId(),
2277                     outputStream -> retrieveAttachmentPointer(pointer, outputStream));
2278         } catch (IOException e) {
2279             logger.warn("Failed to download attachment ({}), ignoring: {}", pointer.getRemoteId(), e.getMessage());
2280         }
2281     }
2282
2283     private void retrieveGroupV2Avatar(
2284             GroupSecretParams groupSecretParams, String cdnKey, OutputStream outputStream
2285     ) throws IOException {
2286         var groupOperations = groupsV2Operations.forGroup(groupSecretParams);
2287
2288         var tmpFile = IOUtils.createTempFile();
2289         try (InputStream input = messageReceiver.retrieveGroupsV2ProfileAvatar(cdnKey,
2290                 tmpFile,
2291                 ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
2292             var encryptedData = IOUtils.readFully(input);
2293
2294             var decryptedData = groupOperations.decryptAvatar(encryptedData);
2295             outputStream.write(decryptedData);
2296         } finally {
2297             try {
2298                 Files.delete(tmpFile.toPath());
2299             } catch (IOException e) {
2300                 logger.warn("Failed to delete received group avatar temp file “{}”, ignoring: {}",
2301                         tmpFile,
2302                         e.getMessage());
2303             }
2304         }
2305     }
2306
2307     private void retrieveProfileAvatar(
2308             String avatarPath, ProfileKey profileKey, OutputStream outputStream
2309     ) throws IOException {
2310         var tmpFile = IOUtils.createTempFile();
2311         try (var input = messageReceiver.retrieveProfileAvatar(avatarPath,
2312                 tmpFile,
2313                 profileKey,
2314                 ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
2315             // Use larger buffer size to prevent AssertionError: Need: 12272 but only have: 8192 ...
2316             IOUtils.copyStream(input, outputStream, (int) ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE);
2317         } finally {
2318             try {
2319                 Files.delete(tmpFile.toPath());
2320             } catch (IOException e) {
2321                 logger.warn("Failed to delete received profile avatar temp file “{}”, ignoring: {}",
2322                         tmpFile,
2323                         e.getMessage());
2324             }
2325         }
2326     }
2327
2328     private void retrieveAttachment(
2329             final SignalServiceAttachment attachment, final OutputStream outputStream
2330     ) throws IOException {
2331         if (attachment.isPointer()) {
2332             var pointer = attachment.asPointer();
2333             retrieveAttachmentPointer(pointer, outputStream);
2334         } else {
2335             var stream = attachment.asStream();
2336             IOUtils.copyStream(stream.getInputStream(), outputStream);
2337         }
2338     }
2339
2340     private void retrieveAttachmentPointer(
2341             SignalServiceAttachmentPointer pointer, OutputStream outputStream
2342     ) throws IOException {
2343         var tmpFile = IOUtils.createTempFile();
2344         try (var input = retrieveAttachmentAsStream(pointer, tmpFile)) {
2345             IOUtils.copyStream(input, outputStream);
2346         } catch (MissingConfigurationException | InvalidMessageException e) {
2347             throw new IOException(e);
2348         } finally {
2349             try {
2350                 Files.delete(tmpFile.toPath());
2351             } catch (IOException e) {
2352                 logger.warn("Failed to delete received attachment temp file “{}”, ignoring: {}",
2353                         tmpFile,
2354                         e.getMessage());
2355             }
2356         }
2357     }
2358
2359     private InputStream retrieveAttachmentAsStream(
2360             SignalServiceAttachmentPointer pointer, File tmpFile
2361     ) throws IOException, InvalidMessageException, MissingConfigurationException {
2362         return messageReceiver.retrieveAttachment(pointer, tmpFile, ServiceConfig.MAX_ATTACHMENT_SIZE);
2363     }
2364
2365     void sendGroups() throws IOException, UntrustedIdentityException {
2366         var groupsFile = IOUtils.createTempFile();
2367
2368         try {
2369             try (OutputStream fos = new FileOutputStream(groupsFile)) {
2370                 var out = new DeviceGroupsOutputStream(fos);
2371                 for (var record : getGroups()) {
2372                     if (record instanceof GroupInfoV1) {
2373                         var groupInfo = (GroupInfoV1) record;
2374                         out.write(new DeviceGroup(groupInfo.getGroupId().serialize(),
2375                                 Optional.fromNullable(groupInfo.name),
2376                                 groupInfo.getMembers()
2377                                         .stream()
2378                                         .map(this::resolveSignalServiceAddress)
2379                                         .collect(Collectors.toList()),
2380                                 createGroupAvatarAttachment(groupInfo.getGroupId()),
2381                                 groupInfo.isMember(account.getSelfRecipientId()),
2382                                 Optional.of(groupInfo.messageExpirationTime),
2383                                 Optional.fromNullable(groupInfo.color),
2384                                 groupInfo.blocked,
2385                                 Optional.absent(),
2386                                 groupInfo.archived));
2387                     }
2388                 }
2389             }
2390
2391             if (groupsFile.exists() && groupsFile.length() > 0) {
2392                 try (var groupsFileStream = new FileInputStream(groupsFile)) {
2393                     var attachmentStream = SignalServiceAttachment.newStreamBuilder()
2394                             .withStream(groupsFileStream)
2395                             .withContentType("application/octet-stream")
2396                             .withLength(groupsFile.length())
2397                             .build();
2398
2399                     sendSyncMessage(SignalServiceSyncMessage.forGroups(attachmentStream));
2400                 }
2401             }
2402         } finally {
2403             try {
2404                 Files.delete(groupsFile.toPath());
2405             } catch (IOException e) {
2406                 logger.warn("Failed to delete groups temp file “{}”, ignoring: {}", groupsFile, e.getMessage());
2407             }
2408         }
2409     }
2410
2411     public void sendContacts() throws IOException, UntrustedIdentityException {
2412         var contactsFile = IOUtils.createTempFile();
2413
2414         try {
2415             try (OutputStream fos = new FileOutputStream(contactsFile)) {
2416                 var out = new DeviceContactsOutputStream(fos);
2417                 for (var contactPair : account.getContactStore().getContacts()) {
2418                     final var recipientId = contactPair.first();
2419                     final var contact = contactPair.second();
2420                     final var address = resolveSignalServiceAddress(recipientId);
2421
2422                     var currentIdentity = account.getIdentityKeyStore().getIdentity(recipientId);
2423                     VerifiedMessage verifiedMessage = null;
2424                     if (currentIdentity != null) {
2425                         verifiedMessage = new VerifiedMessage(address,
2426                                 currentIdentity.getIdentityKey(),
2427                                 currentIdentity.getTrustLevel().toVerifiedState(),
2428                                 currentIdentity.getDateAdded().getTime());
2429                     }
2430
2431                     var profileKey = account.getProfileStore().getProfileKey(recipientId);
2432                     out.write(new DeviceContact(address,
2433                             Optional.fromNullable(contact.getName()),
2434                             createContactAvatarAttachment(address),
2435                             Optional.fromNullable(contact.getColor()),
2436                             Optional.fromNullable(verifiedMessage),
2437                             Optional.fromNullable(profileKey),
2438                             contact.isBlocked(),
2439                             Optional.of(contact.getMessageExpirationTime()),
2440                             Optional.absent(),
2441                             contact.isArchived()));
2442                 }
2443
2444                 if (account.getProfileKey() != null) {
2445                     // Send our own profile key as well
2446                     out.write(new DeviceContact(account.getSelfAddress(),
2447                             Optional.absent(),
2448                             Optional.absent(),
2449                             Optional.absent(),
2450                             Optional.absent(),
2451                             Optional.of(account.getProfileKey()),
2452                             false,
2453                             Optional.absent(),
2454                             Optional.absent(),
2455                             false));
2456                 }
2457             }
2458
2459             if (contactsFile.exists() && contactsFile.length() > 0) {
2460                 try (var contactsFileStream = new FileInputStream(contactsFile)) {
2461                     var attachmentStream = SignalServiceAttachment.newStreamBuilder()
2462                             .withStream(contactsFileStream)
2463                             .withContentType("application/octet-stream")
2464                             .withLength(contactsFile.length())
2465                             .build();
2466
2467                     sendSyncMessage(SignalServiceSyncMessage.forContacts(new ContactsMessage(attachmentStream, true)));
2468                 }
2469             }
2470         } finally {
2471             try {
2472                 Files.delete(contactsFile.toPath());
2473             } catch (IOException e) {
2474                 logger.warn("Failed to delete contacts temp file “{}”, ignoring: {}", contactsFile, e.getMessage());
2475             }
2476         }
2477     }
2478
2479     void sendBlockedList() throws IOException, UntrustedIdentityException {
2480         var addresses = new ArrayList<SignalServiceAddress>();
2481         for (var record : account.getContactStore().getContacts()) {
2482             if (record.second().isBlocked()) {
2483                 addresses.add(resolveSignalServiceAddress(record.first()));
2484             }
2485         }
2486         var groupIds = new ArrayList<byte[]>();
2487         for (var record : getGroups()) {
2488             if (record.isBlocked()) {
2489                 groupIds.add(record.getGroupId().serialize());
2490             }
2491         }
2492         sendSyncMessage(SignalServiceSyncMessage.forBlocked(new BlockedListMessage(addresses, groupIds)));
2493     }
2494
2495     private void sendVerifiedMessage(
2496             SignalServiceAddress destination, IdentityKey identityKey, TrustLevel trustLevel
2497     ) throws IOException, UntrustedIdentityException {
2498         var verifiedMessage = new VerifiedMessage(destination,
2499                 identityKey,
2500                 trustLevel.toVerifiedState(),
2501                 System.currentTimeMillis());
2502         sendSyncMessage(SignalServiceSyncMessage.forVerified(verifiedMessage));
2503     }
2504
2505     public List<Pair<RecipientId, Contact>> getContacts() {
2506         return account.getContactStore().getContacts();
2507     }
2508
2509     public String getContactOrProfileName(String number) throws InvalidNumberException {
2510         final var recipientId = canonicalizeAndResolveRecipient(number);
2511         final var recipient = account.getRecipientStore().getRecipient(recipientId);
2512         if (recipient == null) {
2513             return null;
2514         }
2515
2516         if (recipient.getContact() != null && !Util.isEmpty(recipient.getContact().getName())) {
2517             return recipient.getContact().getName();
2518         }
2519
2520         if (recipient.getProfile() != null && recipient.getProfile() != null) {
2521             return recipient.getProfile().getDisplayName();
2522         }
2523
2524         return null;
2525     }
2526
2527     public GroupInfo getGroup(GroupId groupId) {
2528         final var group = account.getGroupStore().getGroup(groupId);
2529         if (group instanceof GroupInfoV2 && ((GroupInfoV2) group).getGroup() == null) {
2530             final var groupSecretParams = GroupSecretParams.deriveFromMasterKey(((GroupInfoV2) group).getMasterKey());
2531             ((GroupInfoV2) group).setGroup(groupHelper.getDecryptedGroup(groupSecretParams), this::resolveRecipient);
2532             account.getGroupStore().updateGroup(group);
2533         }
2534         return group;
2535     }
2536
2537     public List<IdentityInfo> getIdentities() {
2538         return account.getIdentityKeyStore().getIdentities();
2539     }
2540
2541     public List<IdentityInfo> getIdentities(String number) throws InvalidNumberException {
2542         final var identity = account.getIdentityKeyStore().getIdentity(canonicalizeAndResolveRecipient(number));
2543         return identity == null ? List.of() : List.of(identity);
2544     }
2545
2546     /**
2547      * Trust this the identity with this fingerprint
2548      *
2549      * @param name        username of the identity
2550      * @param fingerprint Fingerprint
2551      */
2552     public boolean trustIdentityVerified(String name, byte[] fingerprint) throws InvalidNumberException {
2553         var recipientId = canonicalizeAndResolveRecipient(name);
2554         return trustIdentity(recipientId,
2555                 identityKey -> Arrays.equals(identityKey.serialize(), fingerprint),
2556                 TrustLevel.TRUSTED_VERIFIED);
2557     }
2558
2559     /**
2560      * Trust this the identity with this safety number
2561      *
2562      * @param name         username of the identity
2563      * @param safetyNumber Safety number
2564      */
2565     public boolean trustIdentityVerifiedSafetyNumber(String name, String safetyNumber) throws InvalidNumberException {
2566         var recipientId = canonicalizeAndResolveRecipient(name);
2567         var address = account.getRecipientStore().resolveServiceAddress(recipientId);
2568         return trustIdentity(recipientId,
2569                 identityKey -> safetyNumber.equals(computeSafetyNumber(address, identityKey)),
2570                 TrustLevel.TRUSTED_VERIFIED);
2571     }
2572
2573     /**
2574      * Trust all keys of this identity without verification
2575      *
2576      * @param name username of the identity
2577      */
2578     public boolean trustIdentityAllKeys(String name) throws InvalidNumberException {
2579         var recipientId = canonicalizeAndResolveRecipient(name);
2580         return trustIdentity(recipientId, identityKey -> true, TrustLevel.TRUSTED_UNVERIFIED);
2581     }
2582
2583     private boolean trustIdentity(
2584             RecipientId recipientId, Function<IdentityKey, Boolean> verifier, TrustLevel trustLevel
2585     ) {
2586         var identity = account.getIdentityKeyStore().getIdentity(recipientId);
2587         if (identity == null) {
2588             return false;
2589         }
2590
2591         if (!verifier.apply(identity.getIdentityKey())) {
2592             return false;
2593         }
2594
2595         account.getIdentityKeyStore().setIdentityTrustLevel(recipientId, identity.getIdentityKey(), trustLevel);
2596         try {
2597             var address = account.getRecipientStore().resolveServiceAddress(recipientId);
2598             sendVerifiedMessage(address, identity.getIdentityKey(), trustLevel);
2599         } catch (IOException | UntrustedIdentityException e) {
2600             logger.warn("Failed to send verification sync message: {}", e.getMessage());
2601         }
2602
2603         return true;
2604     }
2605
2606     public String computeSafetyNumber(
2607             SignalServiceAddress theirAddress, IdentityKey theirIdentityKey
2608     ) {
2609         return Utils.computeSafetyNumber(ServiceConfig.capabilities.isUuid(),
2610                 account.getSelfAddress(),
2611                 getIdentityKeyPair().getPublicKey(),
2612                 theirAddress,
2613                 theirIdentityKey);
2614     }
2615
2616     @Deprecated
2617     public SignalServiceAddress resolveSignalServiceAddress(String identifier) {
2618         var address = Utils.getSignalServiceAddressFromIdentifier(identifier);
2619
2620         return resolveSignalServiceAddress(address);
2621     }
2622
2623     @Deprecated
2624     public SignalServiceAddress resolveSignalServiceAddress(SignalServiceAddress address) {
2625         if (address.matches(account.getSelfAddress())) {
2626             return account.getSelfAddress();
2627         }
2628
2629         return account.getRecipientStore().resolveServiceAddress(address);
2630     }
2631
2632     public SignalServiceAddress resolveSignalServiceAddress(RecipientId recipientId) {
2633         return account.getRecipientStore().resolveServiceAddress(recipientId);
2634     }
2635
2636     public RecipientId canonicalizeAndResolveRecipient(String identifier) throws InvalidNumberException {
2637         var canonicalizedNumber = UuidUtil.isUuid(identifier)
2638                 ? identifier
2639                 : PhoneNumberFormatter.formatNumber(identifier, account.getUsername());
2640
2641         return resolveRecipient(canonicalizedNumber);
2642     }
2643
2644     private RecipientId resolveRecipient(final String identifier) {
2645         var address = Utils.getSignalServiceAddressFromIdentifier(identifier);
2646
2647         return resolveRecipient(address);
2648     }
2649
2650     public RecipientId resolveRecipient(SignalServiceAddress address) {
2651         return account.getRecipientStore().resolveRecipient(address);
2652     }
2653
2654     private RecipientId resolveRecipientTrusted(SignalServiceAddress address) {
2655         return account.getRecipientStore().resolveRecipientTrusted(address);
2656     }
2657
2658     @Override
2659     public void close() throws IOException {
2660         close(true);
2661     }
2662
2663     void close(boolean closeAccount) throws IOException {
2664         executor.shutdown();
2665
2666         if (messagePipe != null) {
2667             messagePipe.shutdown();
2668             messagePipe = null;
2669         }
2670
2671         if (unidentifiedMessagePipe != null) {
2672             unidentifiedMessagePipe.shutdown();
2673             unidentifiedMessagePipe = null;
2674         }
2675
2676         if (closeAccount && account != null) {
2677             account.close();
2678         }
2679         account = null;
2680     }
2681
2682     public interface ReceiveMessageHandler {
2683
2684         void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent decryptedContent, Throwable e);
2685     }
2686 }