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.GroupV2Helper;
  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 GroupV2Helper groupV2Helper;
 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.groupV2Helper = new GroupV2Helper(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 = groupV2Helper.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>> createGroup(
 786             String name, List<String> members, File avatarFile
 787     ) throws IOException, AttachmentInvalidException, InvalidNumberException {
 788         return createGroup(name, members == null ? null : getSignalServiceAddresses(members), avatarFile);
 789     }
 790
 791     private Pair<GroupId, List<SendMessageResult>> createGroup(
 792             String name, Set<RecipientId> members, File avatarFile
 793     ) throws IOException, AttachmentInvalidException {
 794         final var selfRecipientId = account.getSelfRecipientId();
 795         if (members != null && members.contains(selfRecipientId)) {
 796             members = new HashSet<>(members);
 797             members.remove(selfRecipientId);
 798         }
 799
 800         var gv2Pair = groupV2Helper.createGroup(name == null ? "" : name,
 801                 members == null ? Set.of() : members,
 802                 avatarFile);
 803
 804         SignalServiceDataMessage.Builder messageBuilder;
 805         if (gv2Pair == null) {
 806             // Failed to create v2 group, creating v1 group instead
 807             var gv1 = new GroupInfoV1(GroupIdV1.createRandom());
 808             gv1.addMembers(List.of(selfRecipientId));
 809             final var result = updateGroupV1(gv1, name, members, avatarFile);
 810             return new Pair<>(gv1.getGroupId(), result.second());
 811         }
 812
 813         final var gv2 = gv2Pair.first();
 814         final var decryptedGroup = gv2Pair.second();
 815
 816         gv2.setGroup(decryptedGroup, this::resolveRecipient);
 817         if (avatarFile != null) {
 818             avatarStore.storeGroupAvatar(gv2.getGroupId(),
 819                     outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
 820         }
 821         messageBuilder = getGroupUpdateMessageBuilder(gv2, null);
 822         account.getGroupStore().updateGroup(gv2);
 823
 824         final var result = sendMessage(messageBuilder, gv2.getMembersIncludingPendingWithout(selfRecipientId));
 825         return new Pair<>(gv2.getGroupId(), result.second());
 826     }
 827
 828     public Pair<Long, List<SendMessageResult>> updateGroup(
 829             GroupId groupId,
 830             String name,
 831             String description,
 832             List<String> members,
 833             List<String> removeMembers,
 834             File avatarFile
 835     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, InvalidNumberException, NotAGroupMemberException {
 836         return updateGroup(groupId,
 837                 name,
 838                 description,
 839                 members == null ? null : getSignalServiceAddresses(members),
 840                 removeMembers == null ? null : getSignalServiceAddresses(removeMembers),
 841                 avatarFile);
 842     }
 843
 844     private Pair<Long, List<SendMessageResult>> updateGroup(
 845             GroupId groupId,
 846             String name,
 847             String description,
 848             Set<RecipientId> members,
 849             final Set<RecipientId> removeMembers,
 850             File avatarFile
 851     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 852         var group = getGroupForUpdating(groupId);
 853
 854         if (group instanceof GroupInfoV2) {
 855             return updateGroupV2((GroupInfoV2) group, name, description, members, removeMembers, avatarFile);
 856         }
 857
 858         return updateGroupV1((GroupInfoV1) group, name, members, avatarFile);
 859     }
 860
 861     private Pair<Long, List<SendMessageResult>> updateGroupV1(
 862             final GroupInfoV1 gv1, final String name, final Set<RecipientId> members, final File avatarFile
 863     ) throws IOException, AttachmentInvalidException {
 864         updateGroupV1Details(gv1, name, members, avatarFile);
 865         var messageBuilder = getGroupUpdateMessageBuilder(gv1);
 866
 867         account.getGroupStore().updateGroup(gv1);
 868
 869         return sendMessage(messageBuilder, gv1.getMembersIncludingPendingWithout(account.getSelfRecipientId()));
 870     }
 871
 872     private void updateGroupV1Details(
 873             final GroupInfoV1 g, final String name, final Collection<RecipientId> members, final File avatarFile
 874     ) throws IOException {
 875         if (name != null) {
 876             g.name = name;
 877         }
 878
 879         if (members != null) {
 880             final var newMemberAddresses = members.stream()
 881                     .filter(member -> !g.isMember(member))
 882                     .map(this::resolveSignalServiceAddress)
 883                     .collect(Collectors.toList());
 884             final var newE164Members = new HashSet<String>();
 885             for (var member : newMemberAddresses) {
 886                 if (!member.getNumber().isPresent()) {
 887                     continue;
 888                 }
 889                 newE164Members.add(member.getNumber().get());
 890             }
 891
 892             final var registeredUsers = getRegisteredUsers(newE164Members);
 893             if (registeredUsers.size() != newE164Members.size()) {
 894                 // Some of the new members are not registered on Signal
 895                 newE164Members.removeAll(registeredUsers.keySet());
 896                 throw new IOException("Failed to add members "
 897                         + String.join(", ", newE164Members)
 898                         + " to group: Not registered on Signal");
 899             }
 900
 901             g.addMembers(members);
 902         }
 903
 904         if (avatarFile != null) {
 905             avatarStore.storeGroupAvatar(g.getGroupId(),
 906                     outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
 907         }
 908     }
 909
 910     private Pair<Long, List<SendMessageResult>> updateGroupV2(
 911             final GroupInfoV2 group,
 912             final String name,
 913             final String description,
 914             final Set<RecipientId> members,
 915             final Set<RecipientId> removeMembers,
 916             final File avatarFile
 917     ) throws IOException {
 918         Pair<Long, List<SendMessageResult>> result = null;
 919         if (group.isPendingMember(account.getSelfRecipientId())) {
 920             var groupGroupChangePair = groupV2Helper.acceptInvite(group);
 921             result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
 922         }
 923
 924         if (members != null) {
 925             final var newMembers = new HashSet<>(members);
 926             newMembers.removeAll(group.getMembers());
 927             if (newMembers.size() > 0) {
 928                 var groupGroupChangePair = groupV2Helper.addMembers(group, newMembers);
 929                 result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
 930             }
 931         }
 932
 933         if (removeMembers != null) {
 934             var existingRemoveMembers = new HashSet<>(removeMembers);
 935             existingRemoveMembers.retainAll(group.getMembers());
 936             existingRemoveMembers.remove(getSelfRecipientId());// self can be removed with sendQuitGroupMessage
 937             if (existingRemoveMembers.size() > 0) {
 938                 var groupGroupChangePair = groupV2Helper.removeMembers(group, existingRemoveMembers);
 939                 result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
 940             }
 941
 942             var pendingRemoveMembers = new HashSet<>(removeMembers);
 943             pendingRemoveMembers.retainAll(group.getPendingMembers());
 944             if (pendingRemoveMembers.size() > 0) {
 945                 var groupGroupChangePair = groupV2Helper.revokeInvitedMembers(group, pendingRemoveMembers);
 946                 result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
 947             }
 948         }
 949
 950         if (result == null || name != null || description != null || avatarFile != null) {
 951             var groupGroupChangePair = groupV2Helper.updateGroup(group, name, description, avatarFile);
 952             if (avatarFile != null) {
 953                 avatarStore.storeGroupAvatar(group.getGroupId(),
 954                         outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
 955             }
 956             result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
 957         }
 958
 959         return result;
 960     }
 961
 962     public Pair<GroupId, List<SendMessageResult>> joinGroup(
 963             GroupInviteLinkUrl inviteLinkUrl
 964     ) throws IOException, GroupLinkNotActiveException {
 965         final var groupJoinInfo = groupV2Helper.getDecryptedGroupJoinInfo(inviteLinkUrl.getGroupMasterKey(),
 966                 inviteLinkUrl.getPassword());
 967         final var groupChange = groupV2Helper.joinGroup(inviteLinkUrl.getGroupMasterKey(),
 968                 inviteLinkUrl.getPassword(),
 969                 groupJoinInfo);
 970         final var group = getOrMigrateGroup(inviteLinkUrl.getGroupMasterKey(),
 971                 groupJoinInfo.getRevision() + 1,
 972                 groupChange.toByteArray());
 973
 974         if (group.getGroup() == null) {
 975             // Only requested member, can't send update to group members
 976             return new Pair<>(group.getGroupId(), List.of());
 977         }
 978
 979         final var result = sendUpdateGroupV2Message(group, group.getGroup(), groupChange);
 980
 981         return new Pair<>(group.getGroupId(), result.second());
 982     }
 983
 984     private Pair<Long, List<SendMessageResult>> sendUpdateGroupV2Message(
 985             GroupInfoV2 group, DecryptedGroup newDecryptedGroup, GroupChange groupChange
 986     ) throws IOException {
 987         final var selfRecipientId = account.getSelfRecipientId();
 988         final var members = group.getMembersIncludingPendingWithout(selfRecipientId);
 989         group.setGroup(newDecryptedGroup, this::resolveRecipient);
 990         members.addAll(group.getMembersIncludingPendingWithout(selfRecipientId));
 991
 992         final var messageBuilder = getGroupUpdateMessageBuilder(group, groupChange.toByteArray());
 993         account.getGroupStore().updateGroup(group);
 994         return sendMessage(messageBuilder, members);
 995     }
 996
 997     private static int currentTimeDays() {
 998         return (int) TimeUnit.MILLISECONDS.toDays(System.currentTimeMillis());
 999     }
1000
1001     private GroupsV2AuthorizationString getGroupAuthForToday(
1002             final GroupSecretParams groupSecretParams
1003     ) throws IOException {
1004         final var today = currentTimeDays();
1005         // Returns credentials for the next 7 days
1006         final var credentials = groupsV2Api.getCredentials(today);
1007         // TODO cache credentials until they expire
1008         var authCredentialResponse = credentials.get(today);
1009         try {
1010             return groupsV2Api.getGroupsV2AuthorizationString(account.getUuid(),
1011                     today,
1012                     groupSecretParams,
1013                     authCredentialResponse);
1014         } catch (VerificationFailedException e) {
1015             throw new IOException(e);
1016         }
1017     }
1018
1019     Pair<Long, List<SendMessageResult>> sendGroupInfoMessage(
1020             GroupIdV1 groupId, SignalServiceAddress recipient
1021     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, AttachmentInvalidException {
1022         GroupInfoV1 g;
1023         var group = getGroupForSending(groupId);
1024         if (!(group instanceof GroupInfoV1)) {
1025             throw new RuntimeException("Received an invalid group request for a v2 group!");
1026         }
1027         g = (GroupInfoV1) group;
1028
1029         final var recipientId = resolveRecipient(recipient);
1030         if (!g.isMember(recipientId)) {
1031             throw new NotAGroupMemberException(groupId, g.name);
1032         }
1033
1034         var messageBuilder = getGroupUpdateMessageBuilder(g);
1035
1036         // Send group message only to the recipient who requested it
1037         return sendMessage(messageBuilder, Set.of(recipientId));
1038     }
1039
1040     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfoV1 g) throws AttachmentInvalidException {
1041         var group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.UPDATE)
1042                 .withId(g.getGroupId().serialize())
1043                 .withName(g.name)
1044                 .withMembers(g.getMembers()
1045                         .stream()
1046                         .map(this::resolveSignalServiceAddress)
1047                         .collect(Collectors.toList()));
1048
1049         try {
1050             final var attachment = createGroupAvatarAttachment(g.getGroupId());
1051             if (attachment.isPresent()) {
1052                 group.withAvatar(attachment.get());
1053             }
1054         } catch (IOException e) {
1055             throw new AttachmentInvalidException(g.getGroupId().toBase64(), e);
1056         }
1057
1058         return SignalServiceDataMessage.newBuilder()
1059                 .asGroupMessage(group.build())
1060                 .withExpiration(g.getMessageExpirationTime());
1061     }
1062
1063     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfoV2 g, byte[] signedGroupChange) {
1064         var group = SignalServiceGroupV2.newBuilder(g.getMasterKey())
1065                 .withRevision(g.getGroup().getRevision())
1066                 .withSignedGroupChange(signedGroupChange);
1067         return SignalServiceDataMessage.newBuilder()
1068                 .asGroupMessage(group.build())
1069                 .withExpiration(g.getMessageExpirationTime());
1070     }
1071
1072     Pair<Long, List<SendMessageResult>> sendGroupInfoRequest(
1073             GroupIdV1 groupId, SignalServiceAddress recipient
1074     ) throws IOException {
1075         var group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.REQUEST_INFO).withId(groupId.serialize());
1076
1077         var messageBuilder = SignalServiceDataMessage.newBuilder().asGroupMessage(group.build());
1078
1079         // Send group info request message to the recipient who sent us a message with this groupId
1080         return sendMessage(messageBuilder, Set.of(resolveRecipient(recipient)));
1081     }
1082
1083     void sendReceipt(
1084             SignalServiceAddress remoteAddress, long messageId
1085     ) throws IOException, UntrustedIdentityException {
1086         var receiptMessage = new SignalServiceReceiptMessage(SignalServiceReceiptMessage.Type.DELIVERY,
1087                 List.of(messageId),
1088                 System.currentTimeMillis());
1089
1090         createMessageSender().sendReceipt(remoteAddress,
1091                 unidentifiedAccessHelper.getAccessFor(resolveRecipient(remoteAddress)),
1092                 receiptMessage);
1093     }
1094
1095     public Pair<Long, List<SendMessageResult>> sendMessage(
1096             String messageText, List<String> attachments, List<String> recipients
1097     ) throws IOException, AttachmentInvalidException, InvalidNumberException {
1098         final var messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
1099         if (attachments != null) {
1100             var attachmentStreams = AttachmentUtils.getSignalServiceAttachments(attachments);
1101
1102             // Upload attachments here, so we only upload once even for multiple recipients
1103             var messageSender = createMessageSender();
1104             var attachmentPointers = new ArrayList<SignalServiceAttachment>(attachmentStreams.size());
1105             for (var attachment : attachmentStreams) {
1106                 if (attachment.isStream()) {
1107                     attachmentPointers.add(messageSender.uploadAttachment(attachment.asStream()));
1108                 } else if (attachment.isPointer()) {
1109                     attachmentPointers.add(attachment.asPointer());
1110                 }
1111             }
1112
1113             messageBuilder.withAttachments(attachmentPointers);
1114         }
1115         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
1116     }
1117
1118     public Pair<Long, SendMessageResult> sendSelfMessage(
1119             String messageText, List<String> attachments
1120     ) throws IOException, AttachmentInvalidException {
1121         final var messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
1122         if (attachments != null) {
1123             messageBuilder.withAttachments(AttachmentUtils.getSignalServiceAttachments(attachments));
1124         }
1125         return sendSelfMessage(messageBuilder);
1126     }
1127
1128     public Pair<Long, List<SendMessageResult>> sendRemoteDeleteMessage(
1129             long targetSentTimestamp, List<String> recipients
1130     ) throws IOException, InvalidNumberException {
1131         var delete = new SignalServiceDataMessage.RemoteDelete(targetSentTimestamp);
1132         final var messageBuilder = SignalServiceDataMessage.newBuilder().withRemoteDelete(delete);
1133         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
1134     }
1135
1136     public Pair<Long, List<SendMessageResult>> sendGroupRemoteDeleteMessage(
1137             long targetSentTimestamp, GroupId groupId
1138     ) throws IOException, NotAGroupMemberException, GroupNotFoundException {
1139         var delete = new SignalServiceDataMessage.RemoteDelete(targetSentTimestamp);
1140         final var messageBuilder = SignalServiceDataMessage.newBuilder().withRemoteDelete(delete);
1141         return sendGroupMessage(messageBuilder, groupId);
1142     }
1143
1144     public Pair<Long, List<SendMessageResult>> sendMessageReaction(
1145             String emoji, boolean remove, String targetAuthor, long targetSentTimestamp, List<String> recipients
1146     ) throws IOException, InvalidNumberException {
1147         var targetAuthorRecipientId = canonicalizeAndResolveRecipient(targetAuthor);
1148         var reaction = new SignalServiceDataMessage.Reaction(emoji,
1149                 remove,
1150                 resolveSignalServiceAddress(targetAuthorRecipientId),
1151                 targetSentTimestamp);
1152         final var messageBuilder = SignalServiceDataMessage.newBuilder().withReaction(reaction);
1153         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
1154     }
1155
1156     public Pair<Long, List<SendMessageResult>> sendEndSessionMessage(List<String> recipients) throws IOException, InvalidNumberException {
1157         var messageBuilder = SignalServiceDataMessage.newBuilder().asEndSessionMessage();
1158
1159         final var signalServiceAddresses = getSignalServiceAddresses(recipients);
1160         try {
1161             return sendMessage(messageBuilder, signalServiceAddresses);
1162         } catch (Exception e) {
1163             for (var address : signalServiceAddresses) {
1164                 handleEndSession(address);
1165             }
1166             throw e;
1167         }
1168     }
1169
1170     void renewSession(RecipientId recipientId) throws IOException {
1171         account.getSessionStore().archiveSessions(recipientId);
1172         if (!recipientId.equals(getSelfRecipientId())) {
1173             sendNullMessage(recipientId);
1174         }
1175     }
1176
1177     public String getContactName(String number) throws InvalidNumberException {
1178         var contact = account.getContactStore().getContact(canonicalizeAndResolveRecipient(number));
1179         return contact == null || contact.getName() == null ? "" : contact.getName();
1180     }
1181
1182     public void setContactName(String number, String name) throws InvalidNumberException, NotMasterDeviceException {
1183         if (!account.isMasterDevice()) {
1184             throw new NotMasterDeviceException();
1185         }
1186         final var recipientId = canonicalizeAndResolveRecipient(number);
1187         var contact = account.getContactStore().getContact(recipientId);
1188         final var builder = contact == null ? Contact.newBuilder() : Contact.newBuilder(contact);
1189         account.getContactStore().storeContact(recipientId, builder.withName(name).build());
1190     }
1191
1192     public void setContactBlocked(
1193             String number, boolean blocked
1194     ) throws InvalidNumberException, NotMasterDeviceException {
1195         if (!account.isMasterDevice()) {
1196             throw new NotMasterDeviceException();
1197         }
1198         setContactBlocked(canonicalizeAndResolveRecipient(number), blocked);
1199     }
1200
1201     private void setContactBlocked(RecipientId recipientId, boolean blocked) {
1202         var contact = account.getContactStore().getContact(recipientId);
1203         final var builder = contact == null ? Contact.newBuilder() : Contact.newBuilder(contact);
1204         account.getContactStore().storeContact(recipientId, builder.withBlocked(blocked).build());
1205     }
1206
1207     public void setGroupBlocked(final GroupId groupId, final boolean blocked) throws GroupNotFoundException {
1208         var group = getGroup(groupId);
1209         if (group == null) {
1210             throw new GroupNotFoundException(groupId);
1211         }
1212
1213         group.setBlocked(blocked);
1214         account.getGroupStore().updateGroup(group);
1215     }
1216
1217     private void setExpirationTimer(RecipientId recipientId, int messageExpirationTimer) {
1218         var contact = account.getContactStore().getContact(recipientId);
1219         if (contact != null && contact.getMessageExpirationTime() == messageExpirationTimer) {
1220             return;
1221         }
1222         final var builder = contact == null ? Contact.newBuilder() : Contact.newBuilder(contact);
1223         account.getContactStore()
1224                 .storeContact(recipientId, builder.withMessageExpirationTime(messageExpirationTimer).build());
1225     }
1226
1227     private void sendExpirationTimerUpdate(RecipientId recipientId) throws IOException {
1228         final var messageBuilder = SignalServiceDataMessage.newBuilder().asExpirationUpdate();
1229         sendMessage(messageBuilder, Set.of(recipientId));
1230     }
1231
1232     /**
1233      * Change the expiration timer for a contact
1234      */
1235     public void setExpirationTimer(
1236             String number, int messageExpirationTimer
1237     ) throws IOException, InvalidNumberException {
1238         var recipientId = canonicalizeAndResolveRecipient(number);
1239         setExpirationTimer(recipientId, messageExpirationTimer);
1240         sendExpirationTimerUpdate(recipientId);
1241     }
1242
1243     /**
1244      * Change the expiration timer for a group
1245      */
1246     public void setExpirationTimer(GroupId groupId, int messageExpirationTimer) {
1247         var g = getGroup(groupId);
1248         if (g instanceof GroupInfoV1) {
1249             var groupInfoV1 = (GroupInfoV1) g;
1250             groupInfoV1.messageExpirationTime = messageExpirationTimer;
1251             account.getGroupStore().updateGroup(groupInfoV1);
1252         } else {
1253             throw new RuntimeException("TODO Not implemented!");
1254         }
1255     }
1256
1257     /**
1258      * Upload the sticker pack from path.
1259      *
1260      * @param path Path can be a path to a manifest.json file or to a zip file that contains a manifest.json file
1261      * @return if successful, returns the URL to install the sticker pack in the signal app
1262      */
1263     public String uploadStickerPack(File path) throws IOException, StickerPackInvalidException {
1264         var manifest = StickerUtils.getSignalServiceStickerManifestUpload(path);
1265
1266         var messageSender = createMessageSender();
1267
1268         var packKey = KeyUtils.createStickerUploadKey();
1269         var packId = messageSender.uploadStickerManifest(manifest, packKey);
1270
1271         var sticker = new Sticker(StickerPackId.deserialize(Hex.fromStringCondensed(packId)), packKey);
1272         account.getStickerStore().updateSticker(sticker);
1273
1274         try {
1275             return new URI("https",
1276                     "signal.art",
1277                     "/addstickers/",
1278                     "pack_id=" + URLEncoder.encode(packId, StandardCharsets.UTF_8) + "&pack_key=" + URLEncoder.encode(
1279                             Hex.toStringCondensed(packKey),
1280                             StandardCharsets.UTF_8)).toString();
1281         } catch (URISyntaxException e) {
1282             throw new AssertionError(e);
1283         }
1284     }
1285
1286     public void requestAllSyncData() throws IOException {
1287         requestSyncGroups();
1288         requestSyncContacts();
1289         requestSyncBlocked();
1290         requestSyncConfiguration();
1291         requestSyncKeys();
1292     }
1293
1294     private void requestSyncGroups() throws IOException {
1295         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1296                 .setType(SignalServiceProtos.SyncMessage.Request.Type.GROUPS)
1297                 .build();
1298         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1299         try {
1300             sendSyncMessage(message);
1301         } catch (UntrustedIdentityException e) {
1302             throw new AssertionError(e);
1303         }
1304     }
1305
1306     private void requestSyncContacts() throws IOException {
1307         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1308                 .setType(SignalServiceProtos.SyncMessage.Request.Type.CONTACTS)
1309                 .build();
1310         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1311         try {
1312             sendSyncMessage(message);
1313         } catch (UntrustedIdentityException e) {
1314             throw new AssertionError(e);
1315         }
1316     }
1317
1318     private void requestSyncBlocked() throws IOException {
1319         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1320                 .setType(SignalServiceProtos.SyncMessage.Request.Type.BLOCKED)
1321                 .build();
1322         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1323         try {
1324             sendSyncMessage(message);
1325         } catch (UntrustedIdentityException e) {
1326             throw new AssertionError(e);
1327         }
1328     }
1329
1330     private void requestSyncConfiguration() throws IOException {
1331         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1332                 .setType(SignalServiceProtos.SyncMessage.Request.Type.CONFIGURATION)
1333                 .build();
1334         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1335         try {
1336             sendSyncMessage(message);
1337         } catch (UntrustedIdentityException e) {
1338             throw new AssertionError(e);
1339         }
1340     }
1341
1342     private void requestSyncKeys() throws IOException {
1343         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1344                 .setType(SignalServiceProtos.SyncMessage.Request.Type.KEYS)
1345                 .build();
1346         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1347         try {
1348             sendSyncMessage(message);
1349         } catch (UntrustedIdentityException e) {
1350             throw new AssertionError(e);
1351         }
1352     }
1353
1354     private byte[] getSenderCertificate() {
1355         byte[] certificate;
1356         try {
1357             if (account.isPhoneNumberShared()) {
1358                 certificate = accountManager.getSenderCertificate();
1359             } else {
1360                 certificate = accountManager.getSenderCertificateForPhoneNumberPrivacy();
1361             }
1362         } catch (IOException e) {
1363             logger.warn("Failed to get sender certificate, ignoring: {}", e.getMessage());
1364             return null;
1365         }
1366         // TODO cache for a day
1367         return certificate;
1368     }
1369
1370     private void sendSyncMessage(SignalServiceSyncMessage message) throws IOException, UntrustedIdentityException {
1371         var messageSender = createMessageSender();
1372         messageSender.sendMessage(message, unidentifiedAccessHelper.getAccessForSync());
1373     }
1374
1375     private Set<RecipientId> getSignalServiceAddresses(Collection<String> numbers) throws InvalidNumberException {
1376         final var signalServiceAddresses = new HashSet<SignalServiceAddress>(numbers.size());
1377         final var addressesMissingUuid = new HashSet<SignalServiceAddress>();
1378
1379         for (var number : numbers) {
1380             final var resolvedAddress = resolveSignalServiceAddress(canonicalizeAndResolveRecipient(number));
1381             if (resolvedAddress.getUuid().isPresent()) {
1382                 signalServiceAddresses.add(resolvedAddress);
1383             } else {
1384                 addressesMissingUuid.add(resolvedAddress);
1385             }
1386         }
1387
1388         final var numbersMissingUuid = addressesMissingUuid.stream()
1389                 .map(a -> a.getNumber().get())
1390                 .collect(Collectors.toSet());
1391         Map<String, UUID> registeredUsers;
1392         try {
1393             registeredUsers = getRegisteredUsers(numbersMissingUuid);
1394         } catch (IOException e) {
1395             logger.warn("Failed to resolve uuids from server, ignoring: {}", e.getMessage());
1396             registeredUsers = Map.of();
1397         }
1398
1399         for (var address : addressesMissingUuid) {
1400             final var number = address.getNumber().get();
1401             if (registeredUsers.containsKey(number)) {
1402                 final var newAddress = resolveSignalServiceAddress(resolveRecipientTrusted(new SignalServiceAddress(
1403                         registeredUsers.get(number),
1404                         number)));
1405                 signalServiceAddresses.add(newAddress);
1406             } else {
1407                 signalServiceAddresses.add(address);
1408             }
1409         }
1410
1411         return signalServiceAddresses.stream().map(this::resolveRecipient).collect(Collectors.toSet());
1412     }
1413
1414     private RecipientId refreshRegisteredUser(RecipientId recipientId) throws IOException {
1415         final var address = resolveSignalServiceAddress(recipientId);
1416         if (!address.getNumber().isPresent()) {
1417             return recipientId;
1418         }
1419         final var number = address.getNumber().get();
1420         final var uuidMap = getRegisteredUsers(Set.of(number));
1421         return resolveRecipientTrusted(new SignalServiceAddress(uuidMap.getOrDefault(number, null), number));
1422     }
1423
1424     private Map<String, UUID> getRegisteredUsers(final Set<String> numbers) throws IOException {
1425         try {
1426             return accountManager.getRegisteredUsers(ServiceConfig.getIasKeyStore(),
1427                     numbers,
1428                     serviceEnvironmentConfig.getCdsMrenclave());
1429         } catch (Quote.InvalidQuoteFormatException | UnauthenticatedQuoteException | SignatureException | UnauthenticatedResponseException | InvalidKeyException e) {
1430             throw new IOException(e);
1431         }
1432     }
1433
1434     private Pair<Long, List<SendMessageResult>> sendMessage(
1435             SignalServiceDataMessage.Builder messageBuilder, Set<RecipientId> recipientIds
1436     ) throws IOException {
1437         final var timestamp = System.currentTimeMillis();
1438         messageBuilder.withTimestamp(timestamp);
1439         getOrCreateMessagePipe();
1440         getOrCreateUnidentifiedMessagePipe();
1441         SignalServiceDataMessage message = null;
1442         try {
1443             message = messageBuilder.build();
1444             if (message.getGroupContext().isPresent()) {
1445                 try {
1446                     var messageSender = createMessageSender();
1447                     final var isRecipientUpdate = false;
1448                     final var recipientIdList = new ArrayList<>(recipientIds);
1449                     final var addresses = recipientIdList.stream()
1450                             .map(this::resolveSignalServiceAddress)
1451                             .collect(Collectors.toList());
1452                     var result = messageSender.sendMessage(addresses,
1453                             unidentifiedAccessHelper.getAccessFor(recipientIdList),
1454                             isRecipientUpdate,
1455                             message);
1456
1457                     for (var r : result) {
1458                         if (r.getIdentityFailure() != null) {
1459                             final var recipientId = resolveRecipient(r.getAddress());
1460                             final var newIdentity = account.getIdentityKeyStore()
1461                                     .saveIdentity(recipientId, r.getIdentityFailure().getIdentityKey(), new Date());
1462                             if (newIdentity) {
1463                                 account.getSessionStore().archiveSessions(recipientId);
1464                             }
1465                         }
1466                     }
1467
1468                     return new Pair<>(timestamp, result);
1469                 } catch (UntrustedIdentityException e) {
1470                     return new Pair<>(timestamp, List.of());
1471                 }
1472             } else {
1473                 // Send to all individually, so sync messages are sent correctly
1474                 messageBuilder.withProfileKey(account.getProfileKey().serialize());
1475                 var results = new ArrayList<SendMessageResult>(recipientIds.size());
1476                 for (var recipientId : recipientIds) {
1477                     final var contact = account.getContactStore().getContact(recipientId);
1478                     final var expirationTime = contact != null ? contact.getMessageExpirationTime() : 0;
1479                     messageBuilder.withExpiration(expirationTime);
1480                     message = messageBuilder.build();
1481                     results.add(sendMessage(recipientId, message));
1482                 }
1483                 return new Pair<>(timestamp, results);
1484             }
1485         } finally {
1486             if (message != null && message.isEndSession()) {
1487                 for (var recipient : recipientIds) {
1488                     handleEndSession(recipient);
1489                 }
1490             }
1491         }
1492     }
1493
1494     private Pair<Long, SendMessageResult> sendSelfMessage(
1495             SignalServiceDataMessage.Builder messageBuilder
1496     ) throws IOException {
1497         final var timestamp = System.currentTimeMillis();
1498         messageBuilder.withTimestamp(timestamp);
1499         getOrCreateMessagePipe();
1500         getOrCreateUnidentifiedMessagePipe();
1501         final var recipientId = account.getSelfRecipientId();
1502
1503         final var contact = account.getContactStore().getContact(recipientId);
1504         final var expirationTime = contact != null ? contact.getMessageExpirationTime() : 0;
1505         messageBuilder.withExpiration(expirationTime);
1506
1507         var message = messageBuilder.build();
1508         final var result = sendSelfMessage(message);
1509         return new Pair<>(timestamp, result);
1510     }
1511
1512     private SendMessageResult sendSelfMessage(SignalServiceDataMessage message) throws IOException {
1513         var messageSender = createMessageSender();
1514
1515         var recipientId = account.getSelfRecipientId();
1516
1517         final var unidentifiedAccess = unidentifiedAccessHelper.getAccessFor(recipientId);
1518         var recipient = resolveSignalServiceAddress(recipientId);
1519         var transcript = new SentTranscriptMessage(Optional.of(recipient),
1520                 message.getTimestamp(),
1521                 message,
1522                 message.getExpiresInSeconds(),
1523                 Map.of(recipient, unidentifiedAccess.isPresent()),
1524                 false);
1525         var syncMessage = SignalServiceSyncMessage.forSentTranscript(transcript);
1526
1527         try {
1528             var startTime = System.currentTimeMillis();
1529             messageSender.sendMessage(syncMessage, unidentifiedAccess);
1530             return SendMessageResult.success(recipient,
1531                     unidentifiedAccess.isPresent(),
1532                     false,
1533                     System.currentTimeMillis() - startTime);
1534         } catch (UntrustedIdentityException e) {
1535             return SendMessageResult.identityFailure(recipient, e.getIdentityKey());
1536         }
1537     }
1538
1539     private SendMessageResult sendMessage(
1540             RecipientId recipientId, SignalServiceDataMessage message
1541     ) throws IOException {
1542         var messageSender = createMessageSender();
1543
1544         final var address = resolveSignalServiceAddress(recipientId);
1545         try {
1546             try {
1547                 return messageSender.sendMessage(address, unidentifiedAccessHelper.getAccessFor(recipientId), message);
1548             } catch (UnregisteredUserException e) {
1549                 final var newRecipientId = refreshRegisteredUser(recipientId);
1550                 return messageSender.sendMessage(resolveSignalServiceAddress(newRecipientId),
1551                         unidentifiedAccessHelper.getAccessFor(newRecipientId),
1552                         message);
1553             }
1554         } catch (UntrustedIdentityException e) {
1555             return SendMessageResult.identityFailure(address, e.getIdentityKey());
1556         }
1557     }
1558
1559     private SendMessageResult sendNullMessage(RecipientId recipientId) throws IOException {
1560         var messageSender = createMessageSender();
1561
1562         final var address = resolveSignalServiceAddress(recipientId);
1563         try {
1564             try {
1565                 return messageSender.sendNullMessage(address, unidentifiedAccessHelper.getAccessFor(recipientId));
1566             } catch (UnregisteredUserException e) {
1567                 final var newRecipientId = refreshRegisteredUser(recipientId);
1568                 final var newAddress = resolveSignalServiceAddress(newRecipientId);
1569                 return messageSender.sendNullMessage(newAddress, unidentifiedAccessHelper.getAccessFor(newRecipientId));
1570             }
1571         } catch (UntrustedIdentityException e) {
1572             return SendMessageResult.identityFailure(address, e.getIdentityKey());
1573         }
1574     }
1575
1576     private SignalServiceContent decryptMessage(SignalServiceEnvelope envelope) throws InvalidMetadataMessageException, ProtocolInvalidMessageException, ProtocolDuplicateMessageException, ProtocolLegacyMessageException, ProtocolInvalidKeyIdException, InvalidMetadataVersionException, ProtocolInvalidVersionException, ProtocolNoSessionException, ProtocolInvalidKeyException, SelfSendException, UnsupportedDataMessageException, ProtocolUntrustedIdentityException {
1577         var cipher = new SignalServiceCipher(account.getSelfAddress(),
1578                 account.getSignalProtocolStore(),
1579                 sessionLock,
1580                 certificateValidator);
1581         return cipher.decrypt(envelope);
1582     }
1583
1584     private void handleEndSession(RecipientId recipientId) {
1585         account.getSessionStore().deleteAllSessions(recipientId);
1586     }
1587
1588     private List<HandleAction> handleSignalServiceDataMessage(
1589             SignalServiceDataMessage message,
1590             boolean isSync,
1591             SignalServiceAddress source,
1592             SignalServiceAddress destination,
1593             boolean ignoreAttachments
1594     ) {
1595         var actions = new ArrayList<HandleAction>();
1596         if (message.getGroupContext().isPresent()) {
1597             if (message.getGroupContext().get().getGroupV1().isPresent()) {
1598                 var groupInfo = message.getGroupContext().get().getGroupV1().get();
1599                 var groupId = GroupId.v1(groupInfo.getGroupId());
1600                 var group = getGroup(groupId);
1601                 if (group == null || group instanceof GroupInfoV1) {
1602                     var groupV1 = (GroupInfoV1) group;
1603                     switch (groupInfo.getType()) {
1604                         case UPDATE: {
1605                             if (groupV1 == null) {
1606                                 groupV1 = new GroupInfoV1(groupId);
1607                             }
1608
1609                             if (groupInfo.getAvatar().isPresent()) {
1610                                 var avatar = groupInfo.getAvatar().get();
1611                                 downloadGroupAvatar(avatar, groupV1.getGroupId());
1612                             }
1613
1614                             if (groupInfo.getName().isPresent()) {
1615                                 groupV1.name = groupInfo.getName().get();
1616                             }
1617
1618                             if (groupInfo.getMembers().isPresent()) {
1619                                 groupV1.addMembers(groupInfo.getMembers()
1620                                         .get()
1621                                         .stream()
1622                                         .map(this::resolveRecipient)
1623                                         .collect(Collectors.toSet()));
1624                             }
1625
1626                             account.getGroupStore().updateGroup(groupV1);
1627                             break;
1628                         }
1629                         case DELIVER:
1630                             if (groupV1 == null && !isSync) {
1631                                 actions.add(new SendGroupInfoRequestAction(source, groupId));
1632                             }
1633                             break;
1634                         case QUIT: {
1635                             if (groupV1 != null) {
1636                                 groupV1.removeMember(resolveRecipient(source));
1637                                 account.getGroupStore().updateGroup(groupV1);
1638                             }
1639                             break;
1640                         }
1641                         case REQUEST_INFO:
1642                             if (groupV1 != null && !isSync) {
1643                                 actions.add(new SendGroupInfoAction(source, groupV1.getGroupId()));
1644                             }
1645                             break;
1646                     }
1647                 } else {
1648                     // Received a group v1 message for a v2 group
1649                 }
1650             }
1651             if (message.getGroupContext().get().getGroupV2().isPresent()) {
1652                 final var groupContext = message.getGroupContext().get().getGroupV2().get();
1653                 final var groupMasterKey = groupContext.getMasterKey();
1654
1655                 getOrMigrateGroup(groupMasterKey,
1656                         groupContext.getRevision(),
1657                         groupContext.hasSignedGroupChange() ? groupContext.getSignedGroupChange() : null);
1658             }
1659         }
1660
1661         final var conversationPartnerAddress = isSync ? destination : source;
1662         if (conversationPartnerAddress != null && message.isEndSession()) {
1663             handleEndSession(resolveRecipient(conversationPartnerAddress));
1664         }
1665         if (message.isExpirationUpdate() || message.getBody().isPresent()) {
1666             if (message.getGroupContext().isPresent()) {
1667                 if (message.getGroupContext().get().getGroupV1().isPresent()) {
1668                     var groupInfo = message.getGroupContext().get().getGroupV1().get();
1669                     var group = account.getGroupStore().getOrCreateGroupV1(GroupId.v1(groupInfo.getGroupId()));
1670                     if (group != null) {
1671                         if (group.messageExpirationTime != message.getExpiresInSeconds()) {
1672                             group.messageExpirationTime = message.getExpiresInSeconds();
1673                             account.getGroupStore().updateGroup(group);
1674                         }
1675                     }
1676                 } else if (message.getGroupContext().get().getGroupV2().isPresent()) {
1677                     // disappearing message timer already stored in the DecryptedGroup
1678                 }
1679             } else if (conversationPartnerAddress != null) {
1680                 setExpirationTimer(resolveRecipient(conversationPartnerAddress), message.getExpiresInSeconds());
1681             }
1682         }
1683         if (!ignoreAttachments) {
1684             if (message.getAttachments().isPresent()) {
1685                 for (var attachment : message.getAttachments().get()) {
1686                     downloadAttachment(attachment);
1687                 }
1688             }
1689             if (message.getSharedContacts().isPresent()) {
1690                 for (var contact : message.getSharedContacts().get()) {
1691                     if (contact.getAvatar().isPresent()) {
1692                         downloadAttachment(contact.getAvatar().get().getAttachment());
1693                     }
1694                 }
1695             }
1696         }
1697         if (message.getProfileKey().isPresent() && message.getProfileKey().get().length == 32) {
1698             final ProfileKey profileKey;
1699             try {
1700                 profileKey = new ProfileKey(message.getProfileKey().get());
1701             } catch (InvalidInputException e) {
1702                 throw new AssertionError(e);
1703             }
1704             if (source.matches(account.getSelfAddress())) {
1705                 this.account.setProfileKey(profileKey);
1706             }
1707             this.account.getProfileStore().storeProfileKey(resolveRecipient(source), profileKey);
1708         }
1709         if (message.getPreviews().isPresent()) {
1710             final var previews = message.getPreviews().get();
1711             for (var preview : previews) {
1712                 if (preview.getImage().isPresent()) {
1713                     downloadAttachment(preview.getImage().get());
1714                 }
1715             }
1716         }
1717         if (message.getQuote().isPresent()) {
1718             final var quote = message.getQuote().get();
1719
1720             for (var quotedAttachment : quote.getAttachments()) {
1721                 final var thumbnail = quotedAttachment.getThumbnail();
1722                 if (thumbnail != null) {
1723                     downloadAttachment(thumbnail);
1724                 }
1725             }
1726         }
1727         if (message.getSticker().isPresent()) {
1728             final var messageSticker = message.getSticker().get();
1729             final var stickerPackId = StickerPackId.deserialize(messageSticker.getPackId());
1730             var sticker = account.getStickerStore().getSticker(stickerPackId);
1731             if (sticker == null) {
1732                 sticker = new Sticker(stickerPackId, messageSticker.getPackKey());
1733                 account.getStickerStore().updateSticker(sticker);
1734             }
1735         }
1736         return actions;
1737     }
1738
1739     private GroupInfoV2 getOrMigrateGroup(
1740             final GroupMasterKey groupMasterKey, final int revision, final byte[] signedGroupChange
1741     ) {
1742         final var groupSecretParams = GroupSecretParams.deriveFromMasterKey(groupMasterKey);
1743
1744         var groupId = GroupUtils.getGroupIdV2(groupSecretParams);
1745         var groupInfo = getGroup(groupId);
1746         final GroupInfoV2 groupInfoV2;
1747         if (groupInfo instanceof GroupInfoV1) {
1748             // Received a v2 group message for a v1 group, we need to locally migrate the group
1749             account.getGroupStore().deleteGroupV1(((GroupInfoV1) groupInfo).getGroupId());
1750             groupInfoV2 = new GroupInfoV2(groupId, groupMasterKey);
1751             logger.info("Locally migrated group {} to group v2, id: {}",
1752                     groupInfo.getGroupId().toBase64(),
1753                     groupInfoV2.getGroupId().toBase64());
1754         } else if (groupInfo instanceof GroupInfoV2) {
1755             groupInfoV2 = (GroupInfoV2) groupInfo;
1756         } else {
1757             groupInfoV2 = new GroupInfoV2(groupId, groupMasterKey);
1758         }
1759
1760         if (groupInfoV2.getGroup() == null || groupInfoV2.getGroup().getRevision() < revision) {
1761             DecryptedGroup group = null;
1762             if (signedGroupChange != null
1763                     && groupInfoV2.getGroup() != null
1764                     && groupInfoV2.getGroup().getRevision() + 1 == revision) {
1765                 group = groupV2Helper.getUpdatedDecryptedGroup(groupInfoV2.getGroup(),
1766                         signedGroupChange,
1767                         groupMasterKey);
1768             }
1769             if (group == null) {
1770                 group = groupV2Helper.getDecryptedGroup(groupSecretParams);
1771             }
1772             if (group != null) {
1773                 storeProfileKeysFromMembers(group);
1774                 final var avatar = group.getAvatar();
1775                 if (avatar != null && !avatar.isEmpty()) {
1776                     downloadGroupAvatar(groupId, groupSecretParams, avatar);
1777                 }
1778             }
1779             groupInfoV2.setGroup(group, this::resolveRecipient);
1780             account.getGroupStore().updateGroup(groupInfoV2);
1781         }
1782
1783         return groupInfoV2;
1784     }
1785
1786     private void storeProfileKeysFromMembers(final DecryptedGroup group) {
1787         for (var member : group.getMembersList()) {
1788             final var uuid = UuidUtil.parseOrThrow(member.getUuid().toByteArray());
1789             final var recipientId = account.getRecipientStore().resolveRecipient(uuid);
1790             try {
1791                 account.getProfileStore()
1792                         .storeProfileKey(recipientId, new ProfileKey(member.getProfileKey().toByteArray()));
1793             } catch (InvalidInputException ignored) {
1794             }
1795         }
1796     }
1797
1798     private void retryFailedReceivedMessages(ReceiveMessageHandler handler, boolean ignoreAttachments) {
1799         Set<HandleAction> queuedActions = new HashSet<>();
1800         for (var cachedMessage : account.getMessageCache().getCachedMessages()) {
1801             var actions = retryFailedReceivedMessage(handler, ignoreAttachments, cachedMessage);
1802             if (actions != null) {
1803                 queuedActions.addAll(actions);
1804             }
1805         }
1806         for (var action : queuedActions) {
1807             try {
1808                 action.execute(this);
1809             } catch (Throwable e) {
1810                 logger.warn("Message action failed.", e);
1811             }
1812         }
1813     }
1814
1815     private List<HandleAction> retryFailedReceivedMessage(
1816             final ReceiveMessageHandler handler, final boolean ignoreAttachments, final CachedMessage cachedMessage
1817     ) {
1818         var envelope = cachedMessage.loadEnvelope();
1819         if (envelope == null) {
1820             return null;
1821         }
1822         SignalServiceContent content = null;
1823         List<HandleAction> actions = null;
1824         if (!envelope.isReceipt()) {
1825             try {
1826                 content = decryptMessage(envelope);
1827             } catch (ProtocolUntrustedIdentityException e) {
1828                 if (!envelope.hasSource()) {
1829                     final var identifier = e.getSender();
1830                     final var recipientId = resolveRecipient(identifier);
1831                     try {
1832                         account.getMessageCache().replaceSender(cachedMessage, recipientId);
1833                     } catch (IOException ioException) {
1834                         logger.warn("Failed to move cached message to recipient folder: {}", ioException.getMessage());
1835                     }
1836                 }
1837                 return null;
1838             } catch (Exception er) {
1839                 // All other errors are not recoverable, so delete the cached message
1840                 cachedMessage.delete();
1841                 return null;
1842             }
1843             actions = handleMessage(envelope, content, ignoreAttachments);
1844         }
1845         handler.handleMessage(envelope, content, null);
1846         cachedMessage.delete();
1847         return actions;
1848     }
1849
1850     public void receiveMessages(
1851             long timeout,
1852             TimeUnit unit,
1853             boolean returnOnTimeout,
1854             boolean ignoreAttachments,
1855             ReceiveMessageHandler handler
1856     ) throws IOException {
1857         retryFailedReceivedMessages(handler, ignoreAttachments);
1858
1859         Set<HandleAction> queuedActions = null;
1860
1861         final var messagePipe = getOrCreateMessagePipe();
1862
1863         var hasCaughtUpWithOldMessages = false;
1864
1865         while (true) {
1866             SignalServiceEnvelope envelope;
1867             SignalServiceContent content = null;
1868             Exception exception = null;
1869             final CachedMessage[] cachedMessage = {null};
1870             try {
1871                 var result = messagePipe.readOrEmpty(timeout, unit, envelope1 -> {
1872                     final var recipientId = envelope1.hasSource()
1873                             ? resolveRecipient(envelope1.getSourceIdentifier())
1874                             : null;
1875                     // store message on disk, before acknowledging receipt to the server
1876                     cachedMessage[0] = account.getMessageCache().cacheMessage(envelope1, recipientId);
1877                 });
1878                 if (result.isPresent()) {
1879                     envelope = result.get();
1880                 } else {
1881                     // Received indicator that server queue is empty
1882                     hasCaughtUpWithOldMessages = true;
1883
1884                     if (queuedActions != null) {
1885                         for (var action : queuedActions) {
1886                             try {
1887                                 action.execute(this);
1888                             } catch (Throwable e) {
1889                                 logger.warn("Message action failed.", e);
1890                             }
1891                         }
1892                         queuedActions.clear();
1893                         queuedActions = null;
1894                     }
1895
1896                     // Continue to wait another timeout for new messages
1897                     continue;
1898                 }
1899             } catch (TimeoutException e) {
1900                 if (returnOnTimeout) return;
1901                 continue;
1902             }
1903
1904             if (envelope.hasSource()) {
1905                 // Store uuid if we don't have it already
1906                 // address/uuid in envelope is sent by server
1907                 resolveRecipientTrusted(envelope.getSourceAddress());
1908             }
1909             final var notAGroupMember = isNotAGroupMember(envelope, content);
1910             if (!envelope.isReceipt()) {
1911                 try {
1912                     content = decryptMessage(envelope);
1913                 } catch (Exception e) {
1914                     exception = e;
1915                 }
1916                 if (!envelope.hasSource() && content != null) {
1917                     // Store uuid if we don't have it already
1918                     // address/uuid is validated by unidentified sender certificate
1919                     resolveRecipientTrusted(content.getSender());
1920                 }
1921                 var actions = handleMessage(envelope, content, ignoreAttachments);
1922                 if (exception instanceof ProtocolInvalidMessageException) {
1923                     final var sender = resolveRecipient(((ProtocolInvalidMessageException) exception).getSender());
1924                     logger.debug("Received invalid message, queuing renew session action.");
1925                     actions.add(new RenewSessionAction(sender));
1926                 }
1927                 if (hasCaughtUpWithOldMessages) {
1928                     for (var action : actions) {
1929                         try {
1930                             action.execute(this);
1931                         } catch (Throwable e) {
1932                             logger.warn("Message action failed.", e);
1933                         }
1934                     }
1935                 } else {
1936                     if (queuedActions == null) {
1937                         queuedActions = new HashSet<>();
1938                     }
1939                     queuedActions.addAll(actions);
1940                 }
1941             }
1942             if (isMessageBlocked(envelope, content)) {
1943                 logger.info("Ignoring a message from blocked user/group: {}", envelope.getTimestamp());
1944             } else if (notAGroupMember) {
1945                 logger.info("Ignoring a message from a non group member: {}", envelope.getTimestamp());
1946             } else {
1947                 handler.handleMessage(envelope, content, exception);
1948             }
1949             if (cachedMessage[0] != null) {
1950                 if (exception instanceof ProtocolUntrustedIdentityException) {
1951                     final var identifier = ((ProtocolUntrustedIdentityException) exception).getSender();
1952                     final var recipientId = resolveRecipient(identifier);
1953                     queuedActions.add(new RetrieveProfileAction(recipientId));
1954                     if (!envelope.hasSource()) {
1955                         try {
1956                             cachedMessage[0] = account.getMessageCache().replaceSender(cachedMessage[0], recipientId);
1957                         } catch (IOException ioException) {
1958                             logger.warn("Failed to move cached message to recipient folder: {}",
1959                                     ioException.getMessage());
1960                         }
1961                     }
1962                 } else {
1963                     cachedMessage[0].delete();
1964                 }
1965             }
1966         }
1967     }
1968
1969     private boolean isMessageBlocked(
1970             SignalServiceEnvelope envelope, SignalServiceContent content
1971     ) {
1972         SignalServiceAddress source;
1973         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1974             source = envelope.getSourceAddress();
1975         } else if (content != null) {
1976             source = content.getSender();
1977         } else {
1978             return false;
1979         }
1980         final var recipientId = resolveRecipient(source);
1981         if (isContactBlocked(recipientId)) {
1982             return true;
1983         }
1984
1985         if (content != null && content.getDataMessage().isPresent()) {
1986             var message = content.getDataMessage().get();
1987             if (message.getGroupContext().isPresent()) {
1988                 var groupId = GroupUtils.getGroupId(message.getGroupContext().get());
1989                 var group = getGroup(groupId);
1990                 if (group != null && group.isBlocked()) {
1991                     return true;
1992                 }
1993             }
1994         }
1995         return false;
1996     }
1997
1998     public boolean isContactBlocked(final String identifier) throws InvalidNumberException {
1999         final var recipientId = canonicalizeAndResolveRecipient(identifier);
2000         return isContactBlocked(recipientId);
2001     }
2002
2003     private boolean isContactBlocked(final RecipientId recipientId) {
2004         var sourceContact = account.getContactStore().getContact(recipientId);
2005         return sourceContact != null && sourceContact.isBlocked();
2006     }
2007
2008     private boolean isNotAGroupMember(
2009             SignalServiceEnvelope envelope, SignalServiceContent content
2010     ) {
2011         SignalServiceAddress source;
2012         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
2013             source = envelope.getSourceAddress();
2014         } else if (content != null) {
2015             source = content.getSender();
2016         } else {
2017             return false;
2018         }
2019
2020         if (content != null && content.getDataMessage().isPresent()) {
2021             var message = content.getDataMessage().get();
2022             if (message.getGroupContext().isPresent()) {
2023                 if (message.getGroupContext().get().getGroupV1().isPresent()) {
2024                     var groupInfo = message.getGroupContext().get().getGroupV1().get();
2025                     if (groupInfo.getType() == SignalServiceGroup.Type.QUIT) {
2026                         return false;
2027                     }
2028                 }
2029                 var groupId = GroupUtils.getGroupId(message.getGroupContext().get());
2030                 var group = getGroup(groupId);
2031                 if (group != null && !group.isMember(resolveRecipient(source))) {
2032                     return true;
2033                 }
2034             }
2035         }
2036         return false;
2037     }
2038
2039     private List<HandleAction> handleMessage(
2040             SignalServiceEnvelope envelope, SignalServiceContent content, boolean ignoreAttachments
2041     ) {
2042         var actions = new ArrayList<HandleAction>();
2043         if (content != null) {
2044             final SignalServiceAddress sender;
2045             if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
2046                 sender = envelope.getSourceAddress();
2047             } else {
2048                 sender = content.getSender();
2049             }
2050
2051             if (content.getDataMessage().isPresent()) {
2052                 var message = content.getDataMessage().get();
2053
2054                 if (content.isNeedsReceipt()) {
2055                     actions.add(new SendReceiptAction(sender, message.getTimestamp()));
2056                 }
2057
2058                 actions.addAll(handleSignalServiceDataMessage(message,
2059                         false,
2060                         sender,
2061                         account.getSelfAddress(),
2062                         ignoreAttachments));
2063             }
2064             if (content.getSyncMessage().isPresent()) {
2065                 account.setMultiDevice(true);
2066                 var syncMessage = content.getSyncMessage().get();
2067                 if (syncMessage.getSent().isPresent()) {
2068                     var message = syncMessage.getSent().get();
2069                     final var destination = message.getDestination().orNull();
2070                     actions.addAll(handleSignalServiceDataMessage(message.getMessage(),
2071                             true,
2072                             sender,
2073                             destination,
2074                             ignoreAttachments));
2075                 }
2076                 if (syncMessage.getRequest().isPresent() && account.isMasterDevice()) {
2077                     var rm = syncMessage.getRequest().get();
2078                     if (rm.isContactsRequest()) {
2079                         actions.add(SendSyncContactsAction.create());
2080                     }
2081                     if (rm.isGroupsRequest()) {
2082                         actions.add(SendSyncGroupsAction.create());
2083                     }
2084                     if (rm.isBlockedListRequest()) {
2085                         actions.add(SendSyncBlockedListAction.create());
2086                     }
2087                     // TODO Handle rm.isConfigurationRequest(); rm.isKeysRequest();
2088                 }
2089                 if (syncMessage.getGroups().isPresent()) {
2090                     File tmpFile = null;
2091                     try {
2092                         tmpFile = IOUtils.createTempFile();
2093                         final var groupsMessage = syncMessage.getGroups().get();
2094                         try (var attachmentAsStream = retrieveAttachmentAsStream(groupsMessage.asPointer(), tmpFile)) {
2095                             var s = new DeviceGroupsInputStream(attachmentAsStream);
2096                             DeviceGroup g;
2097                             while ((g = s.read()) != null) {
2098                                 var syncGroup = account.getGroupStore().getOrCreateGroupV1(GroupId.v1(g.getId()));
2099                                 if (syncGroup != null) {
2100                                     if (g.getName().isPresent()) {
2101                                         syncGroup.name = g.getName().get();
2102                                     }
2103                                     syncGroup.addMembers(g.getMembers()
2104                                             .stream()
2105                                             .map(this::resolveRecipient)
2106                                             .collect(Collectors.toSet()));
2107                                     if (!g.isActive()) {
2108                                         syncGroup.removeMember(account.getSelfRecipientId());
2109                                     } else {
2110                                         // Add ourself to the member set as it's marked as active
2111                                         syncGroup.addMembers(List.of(account.getSelfRecipientId()));
2112                                     }
2113                                     syncGroup.blocked = g.isBlocked();
2114                                     if (g.getColor().isPresent()) {
2115                                         syncGroup.color = g.getColor().get();
2116                                     }
2117
2118                                     if (g.getAvatar().isPresent()) {
2119                                         downloadGroupAvatar(g.getAvatar().get(), syncGroup.getGroupId());
2120                                     }
2121                                     syncGroup.archived = g.isArchived();
2122                                     account.getGroupStore().updateGroup(syncGroup);
2123                                 }
2124                             }
2125                         }
2126                     } catch (Exception e) {
2127                         logger.warn("Failed to handle received sync groups “{}”, ignoring: {}",
2128                                 tmpFile,
2129                                 e.getMessage());
2130                     } finally {
2131                         if (tmpFile != null) {
2132                             try {
2133                                 Files.delete(tmpFile.toPath());
2134                             } catch (IOException e) {
2135                                 logger.warn("Failed to delete received groups temp file “{}”, ignoring: {}",
2136                                         tmpFile,
2137                                         e.getMessage());
2138                             }
2139                         }
2140                     }
2141                 }
2142                 if (syncMessage.getBlockedList().isPresent()) {
2143                     final var blockedListMessage = syncMessage.getBlockedList().get();
2144                     for (var address : blockedListMessage.getAddresses()) {
2145                         setContactBlocked(resolveRecipient(address), true);
2146                     }
2147                     for (var groupId : blockedListMessage.getGroupIds()
2148                             .stream()
2149                             .map(GroupId::unknownVersion)
2150                             .collect(Collectors.toSet())) {
2151                         try {
2152                             setGroupBlocked(groupId, true);
2153                         } catch (GroupNotFoundException e) {
2154                             logger.warn("BlockedListMessage contained groupID that was not found in GroupStore: {}",
2155                                     groupId.toBase64());
2156                         }
2157                     }
2158                 }
2159                 if (syncMessage.getContacts().isPresent()) {
2160                     File tmpFile = null;
2161                     try {
2162                         tmpFile = IOUtils.createTempFile();
2163                         final var contactsMessage = syncMessage.getContacts().get();
2164                         try (var attachmentAsStream = retrieveAttachmentAsStream(contactsMessage.getContactsStream()
2165                                 .asPointer(), tmpFile)) {
2166                             var s = new DeviceContactsInputStream(attachmentAsStream);
2167                             DeviceContact c;
2168                             while ((c = s.read()) != null) {
2169                                 if (c.getAddress().matches(account.getSelfAddress()) && c.getProfileKey().isPresent()) {
2170                                     account.setProfileKey(c.getProfileKey().get());
2171                                 }
2172                                 final var recipientId = resolveRecipientTrusted(c.getAddress());
2173                                 var contact = account.getContactStore().getContact(recipientId);
2174                                 final var builder = contact == null
2175                                         ? Contact.newBuilder()
2176                                         : Contact.newBuilder(contact);
2177                                 if (c.getName().isPresent()) {
2178                                     builder.withName(c.getName().get());
2179                                 }
2180                                 if (c.getColor().isPresent()) {
2181                                     builder.withColor(c.getColor().get());
2182                                 }
2183                                 if (c.getProfileKey().isPresent()) {
2184                                     account.getProfileStore().storeProfileKey(recipientId, c.getProfileKey().get());
2185                                 }
2186                                 if (c.getVerified().isPresent()) {
2187                                     final var verifiedMessage = c.getVerified().get();
2188                                     account.getIdentityKeyStore()
2189                                             .setIdentityTrustLevel(resolveRecipientTrusted(verifiedMessage.getDestination()),
2190                                                     verifiedMessage.getIdentityKey(),
2191                                                     TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
2192                                 }
2193                                 if (c.getExpirationTimer().isPresent()) {
2194                                     builder.withMessageExpirationTime(c.getExpirationTimer().get());
2195                                 }
2196                                 builder.withBlocked(c.isBlocked());
2197                                 builder.withArchived(c.isArchived());
2198                                 account.getContactStore().storeContact(recipientId, builder.build());
2199
2200                                 if (c.getAvatar().isPresent()) {
2201                                     downloadContactAvatar(c.getAvatar().get(), c.getAddress());
2202                                 }
2203                             }
2204                         }
2205                     } catch (Exception e) {
2206                         logger.warn("Failed to handle received sync contacts “{}”, ignoring: {}",
2207                                 tmpFile,
2208                                 e.getMessage());
2209                     } finally {
2210                         if (tmpFile != null) {
2211                             try {
2212                                 Files.delete(tmpFile.toPath());
2213                             } catch (IOException e) {
2214                                 logger.warn("Failed to delete received contacts temp file “{}”, ignoring: {}",
2215                                         tmpFile,
2216                                         e.getMessage());
2217                             }
2218                         }
2219                     }
2220                 }
2221                 if (syncMessage.getVerified().isPresent()) {
2222                     final var verifiedMessage = syncMessage.getVerified().get();
2223                     account.getIdentityKeyStore()
2224                             .setIdentityTrustLevel(resolveRecipientTrusted(verifiedMessage.getDestination()),
2225                                     verifiedMessage.getIdentityKey(),
2226                                     TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
2227                 }
2228                 if (syncMessage.getStickerPackOperations().isPresent()) {
2229                     final var stickerPackOperationMessages = syncMessage.getStickerPackOperations().get();
2230                     for (var m : stickerPackOperationMessages) {
2231                         if (!m.getPackId().isPresent()) {
2232                             continue;
2233                         }
2234                         final var stickerPackId = StickerPackId.deserialize(m.getPackId().get());
2235                         var sticker = account.getStickerStore().getSticker(stickerPackId);
2236                         if (sticker == null) {
2237                             if (!m.getPackKey().isPresent()) {
2238                                 continue;
2239                             }
2240                             sticker = new Sticker(stickerPackId, m.getPackKey().get());
2241                         }
2242                         sticker.setInstalled(!m.getType().isPresent()
2243                                 || m.getType().get() == StickerPackOperationMessage.Type.INSTALL);
2244                         account.getStickerStore().updateSticker(sticker);
2245                     }
2246                 }
2247                 if (syncMessage.getFetchType().isPresent()) {
2248                     switch (syncMessage.getFetchType().get()) {
2249                         case LOCAL_PROFILE:
2250                             getRecipientProfile(account.getSelfRecipientId(), true);
2251                         case STORAGE_MANIFEST:
2252                             // TODO
2253                     }
2254                 }
2255                 if (syncMessage.getKeys().isPresent()) {
2256                     final var keysMessage = syncMessage.getKeys().get();
2257                     if (keysMessage.getStorageService().isPresent()) {
2258                         final var storageKey = keysMessage.getStorageService().get();
2259                         account.setStorageKey(storageKey);
2260                     }
2261                 }
2262                 if (syncMessage.getConfiguration().isPresent()) {
2263                     // TODO
2264                 }
2265             }
2266         }
2267         return actions;
2268     }
2269
2270     private void downloadContactAvatar(SignalServiceAttachment avatar, SignalServiceAddress address) {
2271         try {
2272             avatarStore.storeContactAvatar(address, outputStream -> retrieveAttachment(avatar, outputStream));
2273         } catch (IOException e) {
2274             logger.warn("Failed to download avatar for contact {}, ignoring: {}", address, e.getMessage());
2275         }
2276     }
2277
2278     private void downloadGroupAvatar(SignalServiceAttachment avatar, GroupId groupId) {
2279         try {
2280             avatarStore.storeGroupAvatar(groupId, outputStream -> retrieveAttachment(avatar, outputStream));
2281         } catch (IOException e) {
2282             logger.warn("Failed to download avatar for group {}, ignoring: {}", groupId.toBase64(), e.getMessage());
2283         }
2284     }
2285
2286     private void downloadGroupAvatar(GroupId groupId, GroupSecretParams groupSecretParams, String cdnKey) {
2287         try {
2288             avatarStore.storeGroupAvatar(groupId,
2289                     outputStream -> retrieveGroupV2Avatar(groupSecretParams, cdnKey, outputStream));
2290         } catch (IOException e) {
2291             logger.warn("Failed to download avatar for group {}, ignoring: {}", groupId.toBase64(), e.getMessage());
2292         }
2293     }
2294
2295     private void downloadProfileAvatar(
2296             SignalServiceAddress address, String avatarPath, ProfileKey profileKey
2297     ) {
2298         try {
2299             avatarStore.storeProfileAvatar(address,
2300                     outputStream -> retrieveProfileAvatar(avatarPath, profileKey, outputStream));
2301         } catch (Throwable e) {
2302             logger.warn("Failed to download profile avatar, ignoring: {}", e.getMessage());
2303         }
2304     }
2305
2306     public File getAttachmentFile(SignalServiceAttachmentRemoteId attachmentId) {
2307         return attachmentStore.getAttachmentFile(attachmentId);
2308     }
2309
2310     private void downloadAttachment(final SignalServiceAttachment attachment) {
2311         if (!attachment.isPointer()) {
2312             logger.warn("Invalid state, can't store an attachment stream.");
2313         }
2314
2315         var pointer = attachment.asPointer();
2316         if (pointer.getPreview().isPresent()) {
2317             final var preview = pointer.getPreview().get();
2318             try {
2319                 attachmentStore.storeAttachmentPreview(pointer.getRemoteId(),
2320                         outputStream -> outputStream.write(preview, 0, preview.length));
2321             } catch (IOException e) {
2322                 logger.warn("Failed to download attachment preview, ignoring: {}", e.getMessage());
2323             }
2324         }
2325
2326         try {
2327             attachmentStore.storeAttachment(pointer.getRemoteId(),
2328                     outputStream -> retrieveAttachmentPointer(pointer, outputStream));
2329         } catch (IOException e) {
2330             logger.warn("Failed to download attachment ({}), ignoring: {}", pointer.getRemoteId(), e.getMessage());
2331         }
2332     }
2333
2334     private void retrieveGroupV2Avatar(
2335             GroupSecretParams groupSecretParams, String cdnKey, OutputStream outputStream
2336     ) throws IOException {
2337         var groupOperations = groupsV2Operations.forGroup(groupSecretParams);
2338
2339         var tmpFile = IOUtils.createTempFile();
2340         try (InputStream input = messageReceiver.retrieveGroupsV2ProfileAvatar(cdnKey,
2341                 tmpFile,
2342                 ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
2343             var encryptedData = IOUtils.readFully(input);
2344
2345             var decryptedData = groupOperations.decryptAvatar(encryptedData);
2346             outputStream.write(decryptedData);
2347         } finally {
2348             try {
2349                 Files.delete(tmpFile.toPath());
2350             } catch (IOException e) {
2351                 logger.warn("Failed to delete received group avatar temp file “{}”, ignoring: {}",
2352                         tmpFile,
2353                         e.getMessage());
2354             }
2355         }
2356     }
2357
2358     private void retrieveProfileAvatar(
2359             String avatarPath, ProfileKey profileKey, OutputStream outputStream
2360     ) throws IOException {
2361         var tmpFile = IOUtils.createTempFile();
2362         try (var input = messageReceiver.retrieveProfileAvatar(avatarPath,
2363                 tmpFile,
2364                 profileKey,
2365                 ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
2366             // Use larger buffer size to prevent AssertionError: Need: 12272 but only have: 8192 ...
2367             IOUtils.copyStream(input, outputStream, (int) ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE);
2368         } finally {
2369             try {
2370                 Files.delete(tmpFile.toPath());
2371             } catch (IOException e) {
2372                 logger.warn("Failed to delete received profile avatar temp file “{}”, ignoring: {}",
2373                         tmpFile,
2374                         e.getMessage());
2375             }
2376         }
2377     }
2378
2379     private void retrieveAttachment(
2380             final SignalServiceAttachment attachment, final OutputStream outputStream
2381     ) throws IOException {
2382         if (attachment.isPointer()) {
2383             var pointer = attachment.asPointer();
2384             retrieveAttachmentPointer(pointer, outputStream);
2385         } else {
2386             var stream = attachment.asStream();
2387             IOUtils.copyStream(stream.getInputStream(), outputStream);
2388         }
2389     }
2390
2391     private void retrieveAttachmentPointer(
2392             SignalServiceAttachmentPointer pointer, OutputStream outputStream
2393     ) throws IOException {
2394         var tmpFile = IOUtils.createTempFile();
2395         try (var input = retrieveAttachmentAsStream(pointer, tmpFile)) {
2396             IOUtils.copyStream(input, outputStream);
2397         } catch (MissingConfigurationException | InvalidMessageException e) {
2398             throw new IOException(e);
2399         } finally {
2400             try {
2401                 Files.delete(tmpFile.toPath());
2402             } catch (IOException e) {
2403                 logger.warn("Failed to delete received attachment temp file “{}”, ignoring: {}",
2404                         tmpFile,
2405                         e.getMessage());
2406             }
2407         }
2408     }
2409
2410     private InputStream retrieveAttachmentAsStream(
2411             SignalServiceAttachmentPointer pointer, File tmpFile
2412     ) throws IOException, InvalidMessageException, MissingConfigurationException {
2413         return messageReceiver.retrieveAttachment(pointer, tmpFile, ServiceConfig.MAX_ATTACHMENT_SIZE);
2414     }
2415
2416     void sendGroups() throws IOException, UntrustedIdentityException {
2417         var groupsFile = IOUtils.createTempFile();
2418
2419         try {
2420             try (OutputStream fos = new FileOutputStream(groupsFile)) {
2421                 var out = new DeviceGroupsOutputStream(fos);
2422                 for (var record : getGroups()) {
2423                     if (record instanceof GroupInfoV1) {
2424                         var groupInfo = (GroupInfoV1) record;
2425                         out.write(new DeviceGroup(groupInfo.getGroupId().serialize(),
2426                                 Optional.fromNullable(groupInfo.name),
2427                                 groupInfo.getMembers()
2428                                         .stream()
2429                                         .map(this::resolveSignalServiceAddress)
2430                                         .collect(Collectors.toList()),
2431                                 createGroupAvatarAttachment(groupInfo.getGroupId()),
2432                                 groupInfo.isMember(account.getSelfRecipientId()),
2433                                 Optional.of(groupInfo.messageExpirationTime),
2434                                 Optional.fromNullable(groupInfo.color),
2435                                 groupInfo.blocked,
2436                                 Optional.absent(),
2437                                 groupInfo.archived));
2438                     }
2439                 }
2440             }
2441
2442             if (groupsFile.exists() && groupsFile.length() > 0) {
2443                 try (var groupsFileStream = new FileInputStream(groupsFile)) {
2444                     var attachmentStream = SignalServiceAttachment.newStreamBuilder()
2445                             .withStream(groupsFileStream)
2446                             .withContentType("application/octet-stream")
2447                             .withLength(groupsFile.length())
2448                             .build();
2449
2450                     sendSyncMessage(SignalServiceSyncMessage.forGroups(attachmentStream));
2451                 }
2452             }
2453         } finally {
2454             try {
2455                 Files.delete(groupsFile.toPath());
2456             } catch (IOException e) {
2457                 logger.warn("Failed to delete groups temp file “{}”, ignoring: {}", groupsFile, e.getMessage());
2458             }
2459         }
2460     }
2461
2462     public void sendContacts() throws IOException, UntrustedIdentityException {
2463         var contactsFile = IOUtils.createTempFile();
2464
2465         try {
2466             try (OutputStream fos = new FileOutputStream(contactsFile)) {
2467                 var out = new DeviceContactsOutputStream(fos);
2468                 for (var contactPair : account.getContactStore().getContacts()) {
2469                     final var recipientId = contactPair.first();
2470                     final var contact = contactPair.second();
2471                     final var address = resolveSignalServiceAddress(recipientId);
2472
2473                     var currentIdentity = account.getIdentityKeyStore().getIdentity(recipientId);
2474                     VerifiedMessage verifiedMessage = null;
2475                     if (currentIdentity != null) {
2476                         verifiedMessage = new VerifiedMessage(address,
2477                                 currentIdentity.getIdentityKey(),
2478                                 currentIdentity.getTrustLevel().toVerifiedState(),
2479                                 currentIdentity.getDateAdded().getTime());
2480                     }
2481
2482                     var profileKey = account.getProfileStore().getProfileKey(recipientId);
2483                     out.write(new DeviceContact(address,
2484                             Optional.fromNullable(contact.getName()),
2485                             createContactAvatarAttachment(address),
2486                             Optional.fromNullable(contact.getColor()),
2487                             Optional.fromNullable(verifiedMessage),
2488                             Optional.fromNullable(profileKey),
2489                             contact.isBlocked(),
2490                             Optional.of(contact.getMessageExpirationTime()),
2491                             Optional.absent(),
2492                             contact.isArchived()));
2493                 }
2494
2495                 if (account.getProfileKey() != null) {
2496                     // Send our own profile key as well
2497                     out.write(new DeviceContact(account.getSelfAddress(),
2498                             Optional.absent(),
2499                             Optional.absent(),
2500                             Optional.absent(),
2501                             Optional.absent(),
2502                             Optional.of(account.getProfileKey()),
2503                             false,
2504                             Optional.absent(),
2505                             Optional.absent(),
2506                             false));
2507                 }
2508             }
2509
2510             if (contactsFile.exists() && contactsFile.length() > 0) {
2511                 try (var contactsFileStream = new FileInputStream(contactsFile)) {
2512                     var attachmentStream = SignalServiceAttachment.newStreamBuilder()
2513                             .withStream(contactsFileStream)
2514                             .withContentType("application/octet-stream")
2515                             .withLength(contactsFile.length())
2516                             .build();
2517
2518                     sendSyncMessage(SignalServiceSyncMessage.forContacts(new ContactsMessage(attachmentStream, true)));
2519                 }
2520             }
2521         } finally {
2522             try {
2523                 Files.delete(contactsFile.toPath());
2524             } catch (IOException e) {
2525                 logger.warn("Failed to delete contacts temp file “{}”, ignoring: {}", contactsFile, e.getMessage());
2526             }
2527         }
2528     }
2529
2530     void sendBlockedList() throws IOException, UntrustedIdentityException {
2531         var addresses = new ArrayList<SignalServiceAddress>();
2532         for (var record : account.getContactStore().getContacts()) {
2533             if (record.second().isBlocked()) {
2534                 addresses.add(resolveSignalServiceAddress(record.first()));
2535             }
2536         }
2537         var groupIds = new ArrayList<byte[]>();
2538         for (var record : getGroups()) {
2539             if (record.isBlocked()) {
2540                 groupIds.add(record.getGroupId().serialize());
2541             }
2542         }
2543         sendSyncMessage(SignalServiceSyncMessage.forBlocked(new BlockedListMessage(addresses, groupIds)));
2544     }
2545
2546     private void sendVerifiedMessage(
2547             SignalServiceAddress destination, IdentityKey identityKey, TrustLevel trustLevel
2548     ) throws IOException, UntrustedIdentityException {
2549         var verifiedMessage = new VerifiedMessage(destination,
2550                 identityKey,
2551                 trustLevel.toVerifiedState(),
2552                 System.currentTimeMillis());
2553         sendSyncMessage(SignalServiceSyncMessage.forVerified(verifiedMessage));
2554     }
2555
2556     public List<Pair<RecipientId, Contact>> getContacts() {
2557         return account.getContactStore().getContacts();
2558     }
2559
2560     public String getContactOrProfileName(String number) throws InvalidNumberException {
2561         final var recipientId = canonicalizeAndResolveRecipient(number);
2562         final var recipient = account.getRecipientStore().getRecipient(recipientId);
2563         if (recipient == null) {
2564             return null;
2565         }
2566
2567         if (recipient.getContact() != null && !Util.isEmpty(recipient.getContact().getName())) {
2568             return recipient.getContact().getName();
2569         }
2570
2571         if (recipient.getProfile() != null && recipient.getProfile() != null) {
2572             return recipient.getProfile().getDisplayName();
2573         }
2574
2575         return null;
2576     }
2577
2578     public GroupInfo getGroup(GroupId groupId) {
2579         final var group = account.getGroupStore().getGroup(groupId);
2580         if (group instanceof GroupInfoV2 && ((GroupInfoV2) group).getGroup() == null) {
2581             final var groupSecretParams = GroupSecretParams.deriveFromMasterKey(((GroupInfoV2) group).getMasterKey());
2582             ((GroupInfoV2) group).setGroup(groupV2Helper.getDecryptedGroup(groupSecretParams), this::resolveRecipient);
2583             account.getGroupStore().updateGroup(group);
2584         }
2585         return group;
2586     }
2587
2588     public List<IdentityInfo> getIdentities() {
2589         return account.getIdentityKeyStore().getIdentities();
2590     }
2591
2592     public List<IdentityInfo> getIdentities(String number) throws InvalidNumberException {
2593         final var identity = account.getIdentityKeyStore().getIdentity(canonicalizeAndResolveRecipient(number));
2594         return identity == null ? List.of() : List.of(identity);
2595     }
2596
2597     /**
2598      * Trust this the identity with this fingerprint
2599      *
2600      * @param name        username of the identity
2601      * @param fingerprint Fingerprint
2602      */
2603     public boolean trustIdentityVerified(String name, byte[] fingerprint) throws InvalidNumberException {
2604         var recipientId = canonicalizeAndResolveRecipient(name);
2605         return trustIdentity(recipientId,
2606                 identityKey -> Arrays.equals(identityKey.serialize(), fingerprint),
2607                 TrustLevel.TRUSTED_VERIFIED);
2608     }
2609
2610     /**
2611      * Trust this the identity with this safety number
2612      *
2613      * @param name         username of the identity
2614      * @param safetyNumber Safety number
2615      */
2616     public boolean trustIdentityVerifiedSafetyNumber(String name, String safetyNumber) throws InvalidNumberException {
2617         var recipientId = canonicalizeAndResolveRecipient(name);
2618         var address = account.getRecipientStore().resolveServiceAddress(recipientId);
2619         return trustIdentity(recipientId,
2620                 identityKey -> safetyNumber.equals(computeSafetyNumber(address, identityKey)),
2621                 TrustLevel.TRUSTED_VERIFIED);
2622     }
2623
2624     /**
2625      * Trust all keys of this identity without verification
2626      *
2627      * @param name username of the identity
2628      */
2629     public boolean trustIdentityAllKeys(String name) throws InvalidNumberException {
2630         var recipientId = canonicalizeAndResolveRecipient(name);
2631         return trustIdentity(recipientId, identityKey -> true, TrustLevel.TRUSTED_UNVERIFIED);
2632     }
2633
2634     private boolean trustIdentity(
2635             RecipientId recipientId, Function<IdentityKey, Boolean> verifier, TrustLevel trustLevel
2636     ) {
2637         var identity = account.getIdentityKeyStore().getIdentity(recipientId);
2638         if (identity == null) {
2639             return false;
2640         }
2641
2642         if (!verifier.apply(identity.getIdentityKey())) {
2643             return false;
2644         }
2645
2646         account.getIdentityKeyStore().setIdentityTrustLevel(recipientId, identity.getIdentityKey(), trustLevel);
2647         try {
2648             var address = account.getRecipientStore().resolveServiceAddress(recipientId);
2649             sendVerifiedMessage(address, identity.getIdentityKey(), trustLevel);
2650         } catch (IOException | UntrustedIdentityException e) {
2651             logger.warn("Failed to send verification sync message: {}", e.getMessage());
2652         }
2653
2654         return true;
2655     }
2656
2657     public String computeSafetyNumber(
2658             SignalServiceAddress theirAddress, IdentityKey theirIdentityKey
2659     ) {
2660         return Utils.computeSafetyNumber(ServiceConfig.capabilities.isUuid(),
2661                 account.getSelfAddress(),
2662                 getIdentityKeyPair().getPublicKey(),
2663                 theirAddress,
2664                 theirIdentityKey);
2665     }
2666
2667     @Deprecated
2668     public SignalServiceAddress resolveSignalServiceAddress(String identifier) {
2669         var address = Utils.getSignalServiceAddressFromIdentifier(identifier);
2670
2671         return resolveSignalServiceAddress(address);
2672     }
2673
2674     @Deprecated
2675     public SignalServiceAddress resolveSignalServiceAddress(SignalServiceAddress address) {
2676         if (address.matches(account.getSelfAddress())) {
2677             return account.getSelfAddress();
2678         }
2679
2680         return account.getRecipientStore().resolveServiceAddress(address);
2681     }
2682
2683     public SignalServiceAddress resolveSignalServiceAddress(RecipientId recipientId) {
2684         return account.getRecipientStore().resolveServiceAddress(recipientId);
2685     }
2686
2687     public RecipientId canonicalizeAndResolveRecipient(String identifier) throws InvalidNumberException {
2688         var canonicalizedNumber = UuidUtil.isUuid(identifier)
2689                 ? identifier
2690                 : PhoneNumberFormatter.formatNumber(identifier, account.getUsername());
2691
2692         return resolveRecipient(canonicalizedNumber);
2693     }
2694
2695     private RecipientId resolveRecipient(final String identifier) {
2696         var address = Utils.getSignalServiceAddressFromIdentifier(identifier);
2697
2698         return resolveRecipient(address);
2699     }
2700
2701     public RecipientId resolveRecipient(SignalServiceAddress address) {
2702         return account.getRecipientStore().resolveRecipient(address);
2703     }
2704
2705     private RecipientId resolveRecipientTrusted(SignalServiceAddress address) {
2706         return account.getRecipientStore().resolveRecipientTrusted(address);
2707     }
2708
2709     @Override
2710     public void close() throws IOException {
2711         close(true);
2712     }
2713
2714     void close(boolean closeAccount) throws IOException {
2715         executor.shutdown();
2716
2717         if (messagePipe != null) {
2718             messagePipe.shutdown();
2719             messagePipe = null;
2720         }
2721
2722         if (unidentifiedMessagePipe != null) {
2723             unidentifiedMessagePipe.shutdown();
2724             unidentifiedMessagePipe = null;
2725         }
2726
2727         if (closeAccount && account != null) {
2728             account.close();
2729         }
2730         account = null;
2731     }
2732
2733     public interface ReceiveMessageHandler {
2734
2735         void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent decryptedContent, Throwable e);
2736     }
2737 }