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

   1 /*
   2   Copyright (C) 2015-2021 AsamK and contributors
   3
   4   This program is free software: you can redistribute it and/or modify
   5   it under the terms of the GNU General Public License as published by
   6   the Free Software Foundation, either version 3 of the License, or
   7   (at your option) any later version.
   8
   9   This program is distributed in the hope that it will be useful,
  10   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12   GNU General Public License for more details.
  13
  14   You should have received a copy of the GNU General Public License
  15   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17 package org.asamk.signal.manager;
  18
  19 import org.asamk.signal.manager.api.Device;
  20 import org.asamk.signal.manager.config.ServiceConfig;
  21 import org.asamk.signal.manager.config.ServiceEnvironment;
  22 import org.asamk.signal.manager.config.ServiceEnvironmentConfig;
  23 import org.asamk.signal.manager.groups.GroupId;
  24 import org.asamk.signal.manager.groups.GroupIdV1;
  25 import org.asamk.signal.manager.groups.GroupInviteLinkUrl;
  26 import org.asamk.signal.manager.groups.GroupNotFoundException;
  27 import org.asamk.signal.manager.groups.GroupUtils;
  28 import org.asamk.signal.manager.groups.NotAGroupMemberException;
  29 import org.asamk.signal.manager.helper.GroupHelper;
  30 import org.asamk.signal.manager.helper.PinHelper;
  31 import org.asamk.signal.manager.helper.ProfileHelper;
  32 import org.asamk.signal.manager.helper.UnidentifiedAccessHelper;
  33 import org.asamk.signal.manager.storage.SignalAccount;
  34 import org.asamk.signal.manager.storage.groups.GroupInfo;
  35 import org.asamk.signal.manager.storage.groups.GroupInfoV1;
  36 import org.asamk.signal.manager.storage.groups.GroupInfoV2;
  37 import org.asamk.signal.manager.storage.identities.IdentityInfo;
  38 import org.asamk.signal.manager.storage.messageCache.CachedMessage;
  39 import org.asamk.signal.manager.storage.recipients.Contact;
  40 import org.asamk.signal.manager.storage.recipients.Profile;
  41 import org.asamk.signal.manager.storage.recipients.RecipientId;
  42 import org.asamk.signal.manager.storage.stickers.Sticker;
  43 import org.asamk.signal.manager.storage.stickers.StickerPackId;
  44 import org.asamk.signal.manager.util.AttachmentUtils;
  45 import org.asamk.signal.manager.util.IOUtils;
  46 import org.asamk.signal.manager.util.KeyUtils;
  47 import org.asamk.signal.manager.util.ProfileUtils;
  48 import org.asamk.signal.manager.util.StickerUtils;
  49 import org.asamk.signal.manager.util.Utils;
  50 import org.signal.libsignal.metadata.InvalidMetadataMessageException;
  51 import org.signal.libsignal.metadata.InvalidMetadataVersionException;
  52 import org.signal.libsignal.metadata.ProtocolDuplicateMessageException;
  53 import org.signal.libsignal.metadata.ProtocolInvalidKeyException;
  54 import org.signal.libsignal.metadata.ProtocolInvalidKeyIdException;
  55 import org.signal.libsignal.metadata.ProtocolInvalidMessageException;
  56 import org.signal.libsignal.metadata.ProtocolInvalidVersionException;
  57 import org.signal.libsignal.metadata.ProtocolLegacyMessageException;
  58 import org.signal.libsignal.metadata.ProtocolNoSessionException;
  59 import org.signal.libsignal.metadata.ProtocolUntrustedIdentityException;
  60 import org.signal.libsignal.metadata.SelfSendException;
  61 import org.signal.libsignal.metadata.certificate.CertificateValidator;
  62 import org.signal.storageservice.protos.groups.GroupChange;
  63 import org.signal.storageservice.protos.groups.local.DecryptedGroup;
  64 import org.signal.zkgroup.InvalidInputException;
  65 import org.signal.zkgroup.VerificationFailedException;
  66 import org.signal.zkgroup.groups.GroupMasterKey;
  67 import org.signal.zkgroup.groups.GroupSecretParams;
  68 import org.signal.zkgroup.profiles.ClientZkProfileOperations;
  69 import org.signal.zkgroup.profiles.ProfileKey;
  70 import org.signal.zkgroup.profiles.ProfileKeyCredential;
  71 import org.slf4j.Logger;
  72 import org.slf4j.LoggerFactory;
  73 import org.whispersystems.libsignal.IdentityKey;
  74 import org.whispersystems.libsignal.IdentityKeyPair;
  75 import org.whispersystems.libsignal.InvalidKeyException;
  76 import org.whispersystems.libsignal.InvalidMessageException;
  77 import org.whispersystems.libsignal.ecc.ECPublicKey;
  78 import org.whispersystems.libsignal.state.PreKeyRecord;
  79 import org.whispersystems.libsignal.state.SignedPreKeyRecord;
  80 import org.whispersystems.libsignal.util.Pair;
  81 import org.whispersystems.libsignal.util.guava.Optional;
  82 import org.whispersystems.signalservice.api.SignalServiceAccountManager;
  83 import org.whispersystems.signalservice.api.SignalServiceMessagePipe;
  84 import org.whispersystems.signalservice.api.SignalServiceMessageReceiver;
  85 import org.whispersystems.signalservice.api.SignalServiceMessageSender;
  86 import org.whispersystems.signalservice.api.SignalSessionLock;
  87 import org.whispersystems.signalservice.api.crypto.SignalServiceCipher;
  88 import org.whispersystems.signalservice.api.crypto.UntrustedIdentityException;
  89 import org.whispersystems.signalservice.api.groupsv2.ClientZkOperations;
  90 import org.whispersystems.signalservice.api.groupsv2.GroupLinkNotActiveException;
  91 import org.whispersystems.signalservice.api.groupsv2.GroupsV2Api;
  92 import org.whispersystems.signalservice.api.groupsv2.GroupsV2AuthorizationString;
  93 import org.whispersystems.signalservice.api.groupsv2.GroupsV2Operations;
  94 import org.whispersystems.signalservice.api.messages.SendMessageResult;
  95 import org.whispersystems.signalservice.api.messages.SignalServiceAttachment;
  96 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentPointer;
  97 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentRemoteId;
  98 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentStream;
  99 import org.whispersystems.signalservice.api.messages.SignalServiceContent;
 100 import org.whispersystems.signalservice.api.messages.SignalServiceDataMessage;
 101 import org.whispersystems.signalservice.api.messages.SignalServiceEnvelope;
 102 import org.whispersystems.signalservice.api.messages.SignalServiceGroup;
 103 import org.whispersystems.signalservice.api.messages.SignalServiceGroupV2;
 104 import org.whispersystems.signalservice.api.messages.SignalServiceReceiptMessage;
 105 import org.whispersystems.signalservice.api.messages.multidevice.BlockedListMessage;
 106 import org.whispersystems.signalservice.api.messages.multidevice.ContactsMessage;
 107 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContact;
 108 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsInputStream;
 109 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsOutputStream;
 110 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroup;
 111 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsInputStream;
 112 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsOutputStream;
 113 import org.whispersystems.signalservice.api.messages.multidevice.RequestMessage;
 114 import org.whispersystems.signalservice.api.messages.multidevice.SentTranscriptMessage;
 115 import org.whispersystems.signalservice.api.messages.multidevice.SignalServiceSyncMessage;
 116 import org.whispersystems.signalservice.api.messages.multidevice.StickerPackOperationMessage;
 117 import org.whispersystems.signalservice.api.messages.multidevice.VerifiedMessage;
 118 import org.whispersystems.signalservice.api.profiles.ProfileAndCredential;
 119 import org.whispersystems.signalservice.api.profiles.SignalServiceProfile;
 120 import org.whispersystems.signalservice.api.push.SignalServiceAddress;
 121 import org.whispersystems.signalservice.api.push.exceptions.MissingConfigurationException;
 122 import org.whispersystems.signalservice.api.push.exceptions.UnregisteredUserException;
 123 import org.whispersystems.signalservice.api.util.DeviceNameUtil;
 124 import org.whispersystems.signalservice.api.util.InvalidNumberException;
 125 import org.whispersystems.signalservice.api.util.PhoneNumberFormatter;
 126 import org.whispersystems.signalservice.api.util.SleepTimer;
 127 import org.whispersystems.signalservice.api.util.UptimeSleepTimer;
 128 import org.whispersystems.signalservice.api.util.UuidUtil;
 129 import org.whispersystems.signalservice.internal.contacts.crypto.Quote;
 130 import org.whispersystems.signalservice.internal.contacts.crypto.UnauthenticatedQuoteException;
 131 import org.whispersystems.signalservice.internal.contacts.crypto.UnauthenticatedResponseException;
 132 import org.whispersystems.signalservice.internal.push.SignalServiceProtos;
 133 import org.whispersystems.signalservice.internal.push.UnsupportedDataMessageException;
 134 import org.whispersystems.signalservice.internal.util.DynamicCredentialsProvider;
 135 import org.whispersystems.signalservice.internal.util.Hex;
 136 import org.whispersystems.signalservice.internal.util.Util;
 137
 138 import java.io.Closeable;
 139 import java.io.File;
 140 import java.io.FileInputStream;
 141 import java.io.FileOutputStream;
 142 import java.io.IOException;
 143 import java.io.InputStream;
 144 import java.io.OutputStream;
 145 import java.net.URI;
 146 import java.net.URISyntaxException;
 147 import java.net.URLEncoder;
 148 import java.nio.charset.StandardCharsets;
 149 import java.nio.file.Files;
 150 import java.security.SignatureException;
 151 import java.util.ArrayList;
 152 import java.util.Arrays;
 153 import java.util.Base64;
 154 import java.util.Collection;
 155 import java.util.Date;
 156 import java.util.HashSet;
 157 import java.util.List;
 158 import java.util.Map;
 159 import java.util.Set;
 160 import java.util.UUID;
 161 import java.util.concurrent.ExecutorService;
 162 import java.util.concurrent.Executors;
 163 import java.util.concurrent.TimeUnit;
 164 import java.util.concurrent.TimeoutException;
 165 import java.util.concurrent.locks.ReentrantLock;
 166 import java.util.function.Function;
 167 import java.util.stream.Collectors;
 168
 169 import static org.asamk.signal.manager.config.ServiceConfig.capabilities;
 170
 171 public class Manager implements Closeable {
 172
 173     private final static Logger logger = LoggerFactory.getLogger(Manager.class);
 174
 175     private final CertificateValidator certificateValidator;
 176
 177     private final ServiceEnvironmentConfig serviceEnvironmentConfig;
 178     private final String userAgent;
 179
 180     private SignalAccount account;
 181     private final SignalServiceAccountManager accountManager;
 182     private final GroupsV2Api groupsV2Api;
 183     private final GroupsV2Operations groupsV2Operations;
 184     private final SignalServiceMessageReceiver messageReceiver;
 185     private final ClientZkProfileOperations clientZkProfileOperations;
 186
 187     private final ExecutorService executor = Executors.newCachedThreadPool();
 188
 189     private SignalServiceMessagePipe messagePipe = null;
 190     private SignalServiceMessagePipe unidentifiedMessagePipe = null;
 191
 192     private final UnidentifiedAccessHelper unidentifiedAccessHelper;
 193     private final ProfileHelper profileHelper;
 194     private final GroupHelper groupHelper;
 195     private final PinHelper pinHelper;
 196     private final AvatarStore avatarStore;
 197     private final AttachmentStore attachmentStore;
 198     private final SignalSessionLock sessionLock = new SignalSessionLock() {
 199         private final ReentrantLock LEGACY_LOCK = new ReentrantLock();
 200
 201         @Override
 202         public Lock acquire() {
 203             LEGACY_LOCK.lock();
 204             return LEGACY_LOCK::unlock;
 205         }
 206     };
 207
 208     Manager(
 209             SignalAccount account,
 210             PathConfig pathConfig,
 211             ServiceEnvironmentConfig serviceEnvironmentConfig,
 212             String userAgent
 213     ) {
 214         this.account = account;
 215         this.serviceEnvironmentConfig = serviceEnvironmentConfig;
 216         this.certificateValidator = new CertificateValidator(serviceEnvironmentConfig.getUnidentifiedSenderTrustRoot());
 217         this.userAgent = userAgent;
 218         this.groupsV2Operations = capabilities.isGv2() ? new GroupsV2Operations(ClientZkOperations.create(
 219                 serviceEnvironmentConfig.getSignalServiceConfiguration())) : null;
 220         final SleepTimer timer = new UptimeSleepTimer();
 221         this.accountManager = new SignalServiceAccountManager(serviceEnvironmentConfig.getSignalServiceConfiguration(),
 222                 new DynamicCredentialsProvider(account.getUuid(),
 223                         account.getUsername(),
 224                         account.getPassword(),
 225                         account.getDeviceId()),
 226                 userAgent,
 227                 groupsV2Operations,
 228                 ServiceConfig.AUTOMATIC_NETWORK_RETRY,
 229                 timer);
 230         this.groupsV2Api = accountManager.getGroupsV2Api();
 231         final var keyBackupService = accountManager.getKeyBackupService(ServiceConfig.getIasKeyStore(),
 232                 serviceEnvironmentConfig.getKeyBackupConfig().getEnclaveName(),
 233                 serviceEnvironmentConfig.getKeyBackupConfig().getServiceId(),
 234                 serviceEnvironmentConfig.getKeyBackupConfig().getMrenclave(),
 235                 10);
 236
 237         this.pinHelper = new PinHelper(keyBackupService);
 238         this.clientZkProfileOperations = capabilities.isGv2()
 239                 ? ClientZkOperations.create(serviceEnvironmentConfig.getSignalServiceConfiguration())
 240                 .getProfileOperations()
 241                 : null;
 242         this.messageReceiver = new SignalServiceMessageReceiver(serviceEnvironmentConfig.getSignalServiceConfiguration(),
 243                 account.getUuid(),
 244                 account.getUsername(),
 245                 account.getPassword(),
 246                 account.getDeviceId(),
 247                 userAgent,
 248                 null,
 249                 timer,
 250                 clientZkProfileOperations,
 251                 ServiceConfig.AUTOMATIC_NETWORK_RETRY);
 252
 253         this.unidentifiedAccessHelper = new UnidentifiedAccessHelper(account::getProfileKey,
 254                 account.getProfileStore()::getProfileKey,
 255                 this::getRecipientProfile,
 256                 this::getSenderCertificate);
 257         this.profileHelper = new ProfileHelper(account.getProfileStore()::getProfileKey,
 258                 unidentifiedAccessHelper::getAccessFor,
 259                 unidentified -> unidentified ? getOrCreateUnidentifiedMessagePipe() : getOrCreateMessagePipe(),
 260                 () -> messageReceiver,
 261                 this::resolveSignalServiceAddress);
 262         this.groupHelper = new GroupHelper(this::getRecipientProfileKeyCredential,
 263                 this::getRecipientProfile,
 264                 account::getSelfRecipientId,
 265                 groupsV2Operations,
 266                 groupsV2Api,
 267                 this::getGroupAuthForToday,
 268                 this::resolveSignalServiceAddress);
 269         this.avatarStore = new AvatarStore(pathConfig.getAvatarsPath());
 270         this.attachmentStore = new AttachmentStore(pathConfig.getAttachmentsPath());
 271     }
 272
 273     public String getUsername() {
 274         return account.getUsername();
 275     }
 276
 277     public SignalServiceAddress getSelfAddress() {
 278         return account.getSelfAddress();
 279     }
 280
 281     public RecipientId getSelfRecipientId() {
 282         return account.getSelfRecipientId();
 283     }
 284
 285     private IdentityKeyPair getIdentityKeyPair() {
 286         return account.getIdentityKeyPair();
 287     }
 288
 289     public int getDeviceId() {
 290         return account.getDeviceId();
 291     }
 292
 293     public static Manager init(
 294             String username, File settingsPath, ServiceEnvironment serviceEnvironment, String userAgent
 295     ) throws IOException, NotRegisteredException {
 296         var pathConfig = PathConfig.createDefault(settingsPath);
 297
 298         if (!SignalAccount.userExists(pathConfig.getDataPath(), username)) {
 299             throw new NotRegisteredException();
 300         }
 301
 302         var account = SignalAccount.load(pathConfig.getDataPath(), username, true);
 303
 304         if (!account.isRegistered()) {
 305             throw new NotRegisteredException();
 306         }
 307
 308         final var serviceEnvironmentConfig = ServiceConfig.getServiceEnvironmentConfig(serviceEnvironment, userAgent);
 309
 310         return new Manager(account, pathConfig, serviceEnvironmentConfig, userAgent);
 311     }
 312
 313     public static List<String> getAllLocalUsernames(File settingsPath) {
 314         var pathConfig = PathConfig.createDefault(settingsPath);
 315         final var dataPath = pathConfig.getDataPath();
 316         final var files = dataPath.listFiles();
 317
 318         if (files == null) {
 319             return List.of();
 320         }
 321
 322         return Arrays.stream(files)
 323                 .filter(File::isFile)
 324                 .map(File::getName)
 325                 .filter(file -> PhoneNumberFormatter.isValidNumber(file, null))
 326                 .collect(Collectors.toList());
 327     }
 328
 329     public void checkAccountState() throws IOException {
 330         if (accountManager.getPreKeysCount() < ServiceConfig.PREKEY_MINIMUM_COUNT) {
 331             refreshPreKeys();
 332         }
 333         if (account.getUuid() == null) {
 334             account.setUuid(accountManager.getOwnUuid());
 335         }
 336         updateAccountAttributes();
 337     }
 338
 339     /**
 340      * This is used for checking a set of phone numbers for registration on Signal
 341      *
 342      * @param numbers The set of phone number in question
 343      * @return A map of numbers to booleans. True if registered, false otherwise. Should never be null
 344      * @throws IOException if its unable to get the contacts to check if they're registered
 345      */
 346     public Map<String, Boolean> areUsersRegistered(Set<String> numbers) throws IOException {
 347         // Note "contactDetails" has no optionals. It only gives us info on users who are registered
 348         var contactDetails = getRegisteredUsers(numbers);
 349
 350         var registeredUsers = contactDetails.keySet();
 351
 352         return numbers.stream().collect(Collectors.toMap(x -> x, registeredUsers::contains));
 353     }
 354
 355     public void updateAccountAttributes() throws IOException {
 356         accountManager.setAccountAttributes(account.getEncryptedDeviceName(),
 357                 null,
 358                 account.getLocalRegistrationId(),
 359                 true,
 360                 // set legacy pin only if no KBS master key is set
 361                 account.getPinMasterKey() == null ? account.getRegistrationLockPin() : null,
 362                 account.getPinMasterKey() == null ? null : account.getPinMasterKey().deriveRegistrationLock(),
 363                 account.getSelfUnidentifiedAccessKey(),
 364                 account.isUnrestrictedUnidentifiedAccess(),
 365                 capabilities,
 366                 account.isDiscoverableByPhoneNumber());
 367     }
 368
 369     /**
 370      * @param givenName  if null, the previous givenName will be kept
 371      * @param familyName if null, the previous familyName will be kept
 372      * @param about      if null, the previous about text will be kept
 373      * @param aboutEmoji if null, the previous about emoji will be kept
 374      * @param avatar     if avatar is null the image from the local avatar store is used (if present),
 375      */
 376     public void setProfile(
 377             String givenName, final String familyName, String about, String aboutEmoji, Optional<File> avatar
 378     ) throws IOException {
 379         var profile = getRecipientProfile(account.getSelfRecipientId());
 380         var builder = profile == null ? Profile.newBuilder() : Profile.newBuilder(profile);
 381         if (givenName != null) {
 382             builder.withGivenName(givenName);
 383         }
 384         if (familyName != null) {
 385             builder.withFamilyName(familyName);
 386         }
 387         if (about != null) {
 388             builder.withAbout(about);
 389         }
 390         if (aboutEmoji != null) {
 391             builder.withAboutEmoji(aboutEmoji);
 392         }
 393         var newProfile = builder.build();
 394
 395         try (final var streamDetails = avatar == null
 396                 ? avatarStore.retrieveProfileAvatar(getSelfAddress())
 397                 : avatar.isPresent() ? Utils.createStreamDetailsFromFile(avatar.get()) : null) {
 398             accountManager.setVersionedProfile(account.getUuid(),
 399                     account.getProfileKey(),
 400                     newProfile.getInternalServiceName(),
 401                     newProfile.getAbout() == null ? "" : newProfile.getAbout(),
 402                     newProfile.getAboutEmoji() == null ? "" : newProfile.getAboutEmoji(),
 403                     Optional.absent(),
 404                     streamDetails);
 405         }
 406
 407         if (avatar != null) {
 408             if (avatar.isPresent()) {
 409                 avatarStore.storeProfileAvatar(getSelfAddress(),
 410                         outputStream -> IOUtils.copyFileToStream(avatar.get(), outputStream));
 411             } else {
 412                 avatarStore.deleteProfileAvatar(getSelfAddress());
 413             }
 414         }
 415         account.getProfileStore().storeProfile(account.getSelfRecipientId(), newProfile);
 416
 417         try {
 418             sendSyncMessage(SignalServiceSyncMessage.forFetchLatest(SignalServiceSyncMessage.FetchType.LOCAL_PROFILE));
 419         } catch (UntrustedIdentityException ignored) {
 420         }
 421     }
 422
 423     public void unregister() throws IOException {
 424         // When setting an empty GCM id, the Signal-Server also sets the fetchesMessages property to false.
 425         // If this is the master device, other users can't send messages to this number anymore.
 426         // If this is a linked device, other users can still send messages, but this device doesn't receive them anymore.
 427         accountManager.setGcmId(Optional.absent());
 428
 429         account.setRegistered(false);
 430     }
 431
 432     public void deleteAccount() throws IOException {
 433         accountManager.deleteAccount();
 434
 435         account.setRegistered(false);
 436     }
 437
 438     public List<Device> getLinkedDevices() throws IOException {
 439         var devices = accountManager.getDevices();
 440         account.setMultiDevice(devices.size() > 1);
 441         var identityKey = account.getIdentityKeyPair().getPrivateKey();
 442         return devices.stream().map(d -> {
 443             String deviceName = d.getName();
 444             if (deviceName != null) {
 445                 try {
 446                     deviceName = DeviceNameUtil.decryptDeviceName(deviceName, identityKey);
 447                 } catch (IOException e) {
 448                     logger.debug("Failed to decrypt device name, maybe plain text?", e);
 449                 }
 450             }
 451             return new Device(d.getId(), deviceName, d.getCreated(), d.getLastSeen());
 452         }).collect(Collectors.toList());
 453     }
 454
 455     public void removeLinkedDevices(int deviceId) throws IOException {
 456         accountManager.removeDevice(deviceId);
 457         var devices = accountManager.getDevices();
 458         account.setMultiDevice(devices.size() > 1);
 459     }
 460
 461     public void addDeviceLink(URI linkUri) throws IOException, InvalidKeyException {
 462         var info = DeviceLinkInfo.parseDeviceLinkUri(linkUri);
 463
 464         addDevice(info.deviceIdentifier, info.deviceKey);
 465     }
 466
 467     private void addDevice(String deviceIdentifier, ECPublicKey deviceKey) throws IOException, InvalidKeyException {
 468         var identityKeyPair = getIdentityKeyPair();
 469         var verificationCode = accountManager.getNewDeviceVerificationCode();
 470
 471         accountManager.addDevice(deviceIdentifier,
 472                 deviceKey,
 473                 identityKeyPair,
 474                 Optional.of(account.getProfileKey().serialize()),
 475                 verificationCode);
 476         account.setMultiDevice(true);
 477     }
 478
 479     public void setRegistrationLockPin(Optional<String> pin) throws IOException, UnauthenticatedResponseException {
 480         if (!account.isMasterDevice()) {
 481             throw new RuntimeException("Only master device can set a PIN");
 482         }
 483         if (pin.isPresent()) {
 484             final var masterKey = account.getPinMasterKey() != null
 485                     ? account.getPinMasterKey()
 486                     : KeyUtils.createMasterKey();
 487
 488             pinHelper.setRegistrationLockPin(pin.get(), masterKey);
 489
 490             account.setRegistrationLockPin(pin.get(), masterKey);
 491         } else {
 492             // Remove legacy registration lock
 493             accountManager.removeRegistrationLockV1();
 494
 495             // Remove KBS Pin
 496             pinHelper.removeRegistrationLockPin();
 497
 498             account.setRegistrationLockPin(null, null);
 499         }
 500     }
 501
 502     void refreshPreKeys() throws IOException {
 503         var oneTimePreKeys = generatePreKeys();
 504         final var identityKeyPair = getIdentityKeyPair();
 505         var signedPreKeyRecord = generateSignedPreKey(identityKeyPair);
 506
 507         accountManager.setPreKeys(identityKeyPair.getPublicKey(), signedPreKeyRecord, oneTimePreKeys);
 508     }
 509
 510     private List<PreKeyRecord> generatePreKeys() {
 511         final var offset = account.getPreKeyIdOffset();
 512
 513         var records = KeyUtils.generatePreKeyRecords(offset, ServiceConfig.PREKEY_BATCH_SIZE);
 514         account.addPreKeys(records);
 515
 516         return records;
 517     }
 518
 519     private SignedPreKeyRecord generateSignedPreKey(IdentityKeyPair identityKeyPair) {
 520         final var signedPreKeyId = account.getNextSignedPreKeyId();
 521
 522         var record = KeyUtils.generateSignedPreKeyRecord(identityKeyPair, signedPreKeyId);
 523         account.addSignedPreKey(record);
 524
 525         return record;
 526     }
 527
 528     private SignalServiceMessagePipe getOrCreateMessagePipe() {
 529         if (messagePipe == null) {
 530             messagePipe = messageReceiver.createMessagePipe();
 531         }
 532         return messagePipe;
 533     }
 534
 535     private SignalServiceMessagePipe getOrCreateUnidentifiedMessagePipe() {
 536         if (unidentifiedMessagePipe == null) {
 537             unidentifiedMessagePipe = messageReceiver.createUnidentifiedMessagePipe();
 538         }
 539         return unidentifiedMessagePipe;
 540     }
 541
 542     private SignalServiceMessageSender createMessageSender() {
 543         return new SignalServiceMessageSender(serviceEnvironmentConfig.getSignalServiceConfiguration(),
 544                 account.getUuid(),
 545                 account.getUsername(),
 546                 account.getPassword(),
 547                 account.getDeviceId(),
 548                 account.getSignalProtocolStore(),
 549                 sessionLock,
 550                 userAgent,
 551                 account.isMultiDevice(),
 552                 Optional.fromNullable(messagePipe),
 553                 Optional.fromNullable(unidentifiedMessagePipe),
 554                 Optional.absent(),
 555                 clientZkProfileOperations,
 556                 executor,
 557                 ServiceConfig.MAX_ENVELOPE_SIZE,
 558                 ServiceConfig.AUTOMATIC_NETWORK_RETRY);
 559     }
 560
 561     public Profile getRecipientProfile(
 562             RecipientId recipientId
 563     ) {
 564         return getRecipientProfile(recipientId, false);
 565     }
 566
 567     private final Set<RecipientId> pendingProfileRequest = new HashSet<>();
 568
 569     Profile getRecipientProfile(
 570             RecipientId recipientId, boolean force
 571     ) {
 572         var profile = account.getProfileStore().getProfile(recipientId);
 573
 574         var now = new Date().getTime();
 575         // Profiles are cached for 24h before retrieving them again, unless forced
 576         if (!force && profile != null && now - profile.getLastUpdateTimestamp() < 24 * 60 * 60 * 1000) {
 577             return profile;
 578         }
 579
 580         synchronized (pendingProfileRequest) {
 581             if (pendingProfileRequest.contains(recipientId)) {
 582                 return profile;
 583             }
 584             pendingProfileRequest.add(recipientId);
 585         }
 586         final SignalServiceProfile encryptedProfile;
 587         try {
 588             encryptedProfile = retrieveEncryptedProfile(recipientId);
 589         } finally {
 590             synchronized (pendingProfileRequest) {
 591                 pendingProfileRequest.remove(recipientId);
 592             }
 593         }
 594         if (encryptedProfile == null) {
 595             return null;
 596         }
 597
 598         var profileKey = account.getProfileStore().getProfileKey(recipientId);
 599         if (profileKey == null) {
 600             profile = new Profile(new Date().getTime(),
 601                     null,
 602                     null,
 603                     null,
 604                     null,
 605                     ProfileUtils.getUnidentifiedAccessMode(encryptedProfile, null),
 606                     ProfileUtils.getCapabilities(encryptedProfile));
 607         } else {
 608             profile = decryptProfileAndDownloadAvatar(recipientId, profileKey, encryptedProfile);
 609         }
 610         account.getProfileStore().storeProfile(recipientId, profile);
 611
 612         return profile;
 613     }
 614
 615     private SignalServiceProfile retrieveEncryptedProfile(RecipientId recipientId) {
 616         try {
 617             return retrieveProfileAndCredential(recipientId, SignalServiceProfile.RequestType.PROFILE).getProfile();
 618         } catch (IOException e) {
 619             logger.warn("Failed to retrieve profile, ignoring: {}", e.getMessage());
 620             return null;
 621         }
 622     }
 623
 624     private ProfileAndCredential retrieveProfileAndCredential(
 625             final RecipientId recipientId, final SignalServiceProfile.RequestType requestType
 626     ) throws IOException {
 627         final var profileAndCredential = profileHelper.retrieveProfileSync(recipientId, requestType);
 628         final var profile = profileAndCredential.getProfile();
 629
 630         try {
 631             var newIdentity = account.getIdentityKeyStore()
 632                     .saveIdentity(recipientId,
 633                             new IdentityKey(Base64.getDecoder().decode(profile.getIdentityKey())),
 634                             new Date());
 635
 636             if (newIdentity) {
 637                 account.getSessionStore().archiveSessions(recipientId);
 638             }
 639         } catch (InvalidKeyException ignored) {
 640             logger.warn("Got invalid identity key in profile for {}",
 641                     resolveSignalServiceAddress(recipientId).getLegacyIdentifier());
 642         }
 643         return profileAndCredential;
 644     }
 645
 646     private ProfileKeyCredential getRecipientProfileKeyCredential(RecipientId recipientId) {
 647         var profileKeyCredential = account.getProfileStore().getProfileKeyCredential(recipientId);
 648         if (profileKeyCredential != null) {
 649             return profileKeyCredential;
 650         }
 651
 652         ProfileAndCredential profileAndCredential;
 653         try {
 654             profileAndCredential = retrieveProfileAndCredential(recipientId,
 655                     SignalServiceProfile.RequestType.PROFILE_AND_CREDENTIAL);
 656         } catch (IOException e) {
 657             logger.warn("Failed to retrieve profile key credential, ignoring: {}", e.getMessage());
 658             return null;
 659         }
 660
 661         profileKeyCredential = profileAndCredential.getProfileKeyCredential().orNull();
 662         account.getProfileStore().storeProfileKeyCredential(recipientId, profileKeyCredential);
 663
 664         var profileKey = account.getProfileStore().getProfileKey(recipientId);
 665         if (profileKey != null) {
 666             final var profile = decryptProfileAndDownloadAvatar(recipientId,
 667                     profileKey,
 668                     profileAndCredential.getProfile());
 669             account.getProfileStore().storeProfile(recipientId, profile);
 670         }
 671
 672         return profileKeyCredential;
 673     }
 674
 675     private Profile decryptProfileAndDownloadAvatar(
 676             final RecipientId recipientId, final ProfileKey profileKey, final SignalServiceProfile encryptedProfile
 677     ) {
 678         if (encryptedProfile.getAvatar() != null) {
 679             downloadProfileAvatar(resolveSignalServiceAddress(recipientId), encryptedProfile.getAvatar(), profileKey);
 680         }
 681
 682         return ProfileUtils.decryptProfile(profileKey, encryptedProfile);
 683     }
 684
 685     private Optional<SignalServiceAttachmentStream> createGroupAvatarAttachment(GroupId groupId) throws IOException {
 686         final var streamDetails = avatarStore.retrieveGroupAvatar(groupId);
 687         if (streamDetails == null) {
 688             return Optional.absent();
 689         }
 690
 691         return Optional.of(AttachmentUtils.createAttachment(streamDetails, Optional.absent()));
 692     }
 693
 694     private Optional<SignalServiceAttachmentStream> createContactAvatarAttachment(SignalServiceAddress address) throws IOException {
 695         final var streamDetails = avatarStore.retrieveContactAvatar(address);
 696         if (streamDetails == null) {
 697             return Optional.absent();
 698         }
 699
 700         return Optional.of(AttachmentUtils.createAttachment(streamDetails, Optional.absent()));
 701     }
 702
 703     private GroupInfo getGroupForSending(GroupId groupId) throws GroupNotFoundException, NotAGroupMemberException {
 704         var g = getGroup(groupId);
 705         if (g == null) {
 706             throw new GroupNotFoundException(groupId);
 707         }
 708         if (!g.isMember(account.getSelfRecipientId())) {
 709             throw new NotAGroupMemberException(groupId, g.getTitle());
 710         }
 711         return g;
 712     }
 713
 714     private GroupInfo getGroupForUpdating(GroupId groupId) throws GroupNotFoundException, NotAGroupMemberException {
 715         var g = getGroup(groupId);
 716         if (g == null) {
 717             throw new GroupNotFoundException(groupId);
 718         }
 719         if (!g.isMember(account.getSelfRecipientId()) && !g.isPendingMember(account.getSelfRecipientId())) {
 720             throw new NotAGroupMemberException(groupId, g.getTitle());
 721         }
 722         return g;
 723     }
 724
 725     public List<GroupInfo> getGroups() {
 726         return account.getGroupStore().getGroups();
 727     }
 728
 729     public Pair<Long, List<SendMessageResult>> sendGroupMessage(
 730             String messageText, List<String> attachments, GroupId groupId
 731     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 732         final var messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
 733         if (attachments != null) {
 734             messageBuilder.withAttachments(AttachmentUtils.getSignalServiceAttachments(attachments));
 735         }
 736
 737         return sendGroupMessage(messageBuilder, groupId);
 738     }
 739
 740     public Pair<Long, List<SendMessageResult>> sendGroupMessageReaction(
 741             String emoji, boolean remove, String targetAuthor, long targetSentTimestamp, GroupId groupId
 742     ) throws IOException, InvalidNumberException, NotAGroupMemberException, GroupNotFoundException {
 743         var targetAuthorRecipientId = canonicalizeAndResolveRecipient(targetAuthor);
 744         var reaction = new SignalServiceDataMessage.Reaction(emoji,
 745                 remove,
 746                 resolveSignalServiceAddress(targetAuthorRecipientId),
 747                 targetSentTimestamp);
 748         final var messageBuilder = SignalServiceDataMessage.newBuilder().withReaction(reaction);
 749
 750         return sendGroupMessage(messageBuilder, groupId);
 751     }
 752
 753     public Pair<Long, List<SendMessageResult>> sendGroupMessage(
 754             SignalServiceDataMessage.Builder messageBuilder, GroupId groupId
 755     ) throws IOException, GroupNotFoundException, NotAGroupMemberException {
 756         final var g = getGroupForSending(groupId);
 757
 758         GroupUtils.setGroupContext(messageBuilder, g);
 759         messageBuilder.withExpiration(g.getMessageExpirationTime());
 760
 761         return sendMessage(messageBuilder, g.getMembersWithout(account.getSelfRecipientId()));
 762     }
 763
 764     public Pair<Long, List<SendMessageResult>> sendQuitGroupMessage(GroupId groupId) throws GroupNotFoundException, IOException, NotAGroupMemberException {
 765         SignalServiceDataMessage.Builder messageBuilder;
 766
 767         final var g = getGroupForUpdating(groupId);
 768         if (g instanceof GroupInfoV1) {
 769             var groupInfoV1 = (GroupInfoV1) g;
 770             var group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.QUIT).withId(groupId.serialize()).build();
 771             messageBuilder = SignalServiceDataMessage.newBuilder().asGroupMessage(group);
 772             groupInfoV1.removeMember(account.getSelfRecipientId());
 773             account.getGroupStore().updateGroup(groupInfoV1);
 774         } else {
 775             final var groupInfoV2 = (GroupInfoV2) g;
 776             final var groupGroupChangePair = groupHelper.leaveGroup(groupInfoV2);
 777             groupInfoV2.setGroup(groupGroupChangePair.first(), this::resolveRecipient);
 778             messageBuilder = getGroupUpdateMessageBuilder(groupInfoV2, groupGroupChangePair.second().toByteArray());
 779             account.getGroupStore().updateGroup(groupInfoV2);
 780         }
 781
 782         return sendMessage(messageBuilder, g.getMembersWithout(account.getSelfRecipientId()));
 783     }
 784
 785     public Pair<GroupId, List<SendMessageResult>> updateGroup(
 786             GroupId groupId, String name, String description, List<String> members, File avatarFile
 787     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, InvalidNumberException, NotAGroupMemberException {
 788         final var membersRecipientIds = members == null ? null : getSignalServiceAddresses(members);
 789         if (membersRecipientIds != null) {
 790             membersRecipientIds.remove(account.getSelfRecipientId());
 791         }
 792         return sendUpdateGroupMessage(groupId, name, description, membersRecipientIds, avatarFile);
 793     }
 794
 795     private Pair<GroupId, List<SendMessageResult>> sendUpdateGroupMessage(
 796             GroupId groupId, String name, String description, Set<RecipientId> members, File avatarFile
 797     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 798         GroupInfo g;
 799         SignalServiceDataMessage.Builder messageBuilder;
 800         if (groupId == null) {
 801             // Create new group
 802             var gv2Pair = groupHelper.createGroupV2(name == null ? "" : name,
 803                     members == null ? Set.of() : members,
 804                     avatarFile);
 805             if (gv2Pair == null) {
 806                 var gv1 = new GroupInfoV1(GroupIdV1.createRandom());
 807                 gv1.addMembers(List.of(account.getSelfRecipientId()));
 808                 updateGroupV1(gv1, name, members, avatarFile);
 809                 messageBuilder = getGroupUpdateMessageBuilder(gv1);
 810                 g = gv1;
 811             } else {
 812                 // TODO set description as well
 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                 g = gv2;
 823             }
 824         } else {
 825             var group = getGroupForUpdating(groupId);
 826             if (group instanceof GroupInfoV2) {
 827                 final var groupInfoV2 = (GroupInfoV2) group;
 828
 829                 Pair<Long, List<SendMessageResult>> result = null;
 830                 if (groupInfoV2.isPendingMember(account.getSelfRecipientId())) {
 831                     var groupGroupChangePair = groupHelper.acceptInvite(groupInfoV2);
 832                     result = sendUpdateGroupMessage(groupInfoV2,
 833                             groupGroupChangePair.first(),
 834                             groupGroupChangePair.second());
 835                 }
 836
 837                 if (members != null) {
 838                     final var newMembers = new HashSet<>(members);
 839                     newMembers.removeAll(group.getMembers());
 840                     if (newMembers.size() > 0) {
 841                         var groupGroupChangePair = groupHelper.updateGroupV2(groupInfoV2, newMembers);
 842                         result = sendUpdateGroupMessage(groupInfoV2,
 843                                 groupGroupChangePair.first(),
 844                                 groupGroupChangePair.second());
 845                     }
 846                 }
 847                 if (result == null || name != null || description != null || avatarFile != null) {
 848                     var groupGroupChangePair = groupHelper.updateGroupV2(groupInfoV2, name, description, avatarFile);
 849                     if (avatarFile != null) {
 850                         avatarStore.storeGroupAvatar(groupInfoV2.getGroupId(),
 851                                 outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
 852                     }
 853                     result = sendUpdateGroupMessage(groupInfoV2,
 854                             groupGroupChangePair.first(),
 855                             groupGroupChangePair.second());
 856                 }
 857
 858                 return new Pair<>(group.getGroupId(), result.second());
 859             } else {
 860                 var gv1 = (GroupInfoV1) group;
 861                 updateGroupV1(gv1, name, members, avatarFile);
 862                 messageBuilder = getGroupUpdateMessageBuilder(gv1);
 863                 g = gv1;
 864             }
 865         }
 866
 867         account.getGroupStore().updateGroup(g);
 868
 869         final var result = sendMessage(messageBuilder,
 870                 g.getMembersIncludingPendingWithout(account.getSelfRecipientId()));
 871         return new Pair<>(g.getGroupId(), result.second());
 872     }
 873
 874     private void updateGroupV1(
 875             final GroupInfoV1 g, final String name, final Collection<RecipientId> members, final File avatarFile
 876     ) throws IOException {
 877         if (name != null) {
 878             g.name = name;
 879         }
 880
 881         if (members != null) {
 882             final var newMemberAddresses = members.stream()
 883                     .filter(member -> !g.isMember(member))
 884                     .map(this::resolveSignalServiceAddress)
 885                     .collect(Collectors.toList());
 886             final var newE164Members = new HashSet<String>();
 887             for (var member : newMemberAddresses) {
 888                 if (!member.getNumber().isPresent()) {
 889                     continue;
 890                 }
 891                 newE164Members.add(member.getNumber().get());
 892             }
 893
 894             final var registeredUsers = getRegisteredUsers(newE164Members);
 895             if (registeredUsers.size() != newE164Members.size()) {
 896                 // Some of the new members are not registered on Signal
 897                 newE164Members.removeAll(registeredUsers.keySet());
 898                 throw new IOException("Failed to add members "
 899                         + String.join(", ", newE164Members)
 900                         + " to group: Not registered on Signal");
 901             }
 902
 903             g.addMembers(members);
 904         }
 905
 906         if (avatarFile != null) {
 907             avatarStore.storeGroupAvatar(g.getGroupId(),
 908                     outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
 909         }
 910     }
 911
 912     public Pair<GroupId, List<SendMessageResult>> joinGroup(
 913             GroupInviteLinkUrl inviteLinkUrl
 914     ) throws IOException, GroupLinkNotActiveException {
 915         return sendJoinGroupMessage(inviteLinkUrl);
 916     }
 917
 918     private Pair<GroupId, List<SendMessageResult>> sendJoinGroupMessage(
 919             GroupInviteLinkUrl inviteLinkUrl
 920     ) throws IOException, GroupLinkNotActiveException {
 921         final var groupJoinInfo = groupHelper.getDecryptedGroupJoinInfo(inviteLinkUrl.getGroupMasterKey(),
 922                 inviteLinkUrl.getPassword());
 923         final var groupChange = groupHelper.joinGroup(inviteLinkUrl.getGroupMasterKey(),
 924                 inviteLinkUrl.getPassword(),
 925                 groupJoinInfo);
 926         final var group = getOrMigrateGroup(inviteLinkUrl.getGroupMasterKey(),
 927                 groupJoinInfo.getRevision() + 1,
 928                 groupChange.toByteArray());
 929
 930         if (group.getGroup() == null) {
 931             // Only requested member, can't send update to group members
 932             return new Pair<>(group.getGroupId(), List.of());
 933         }
 934
 935         final var result = sendUpdateGroupMessage(group, group.getGroup(), groupChange);
 936
 937         return new Pair<>(group.getGroupId(), result.second());
 938     }
 939
 940     private static int currentTimeDays() {
 941         return (int) TimeUnit.MILLISECONDS.toDays(System.currentTimeMillis());
 942     }
 943
 944     private GroupsV2AuthorizationString getGroupAuthForToday(
 945             final GroupSecretParams groupSecretParams
 946     ) throws IOException {
 947         final var today = currentTimeDays();
 948         // Returns credentials for the next 7 days
 949         final var credentials = groupsV2Api.getCredentials(today);
 950         // TODO cache credentials until they expire
 951         var authCredentialResponse = credentials.get(today);
 952         try {
 953             return groupsV2Api.getGroupsV2AuthorizationString(account.getUuid(),
 954                     today,
 955                     groupSecretParams,
 956                     authCredentialResponse);
 957         } catch (VerificationFailedException e) {
 958             throw new IOException(e);
 959         }
 960     }
 961
 962     private Pair<Long, List<SendMessageResult>> sendUpdateGroupMessage(
 963             GroupInfoV2 group, DecryptedGroup newDecryptedGroup, GroupChange groupChange
 964     ) throws IOException {
 965         group.setGroup(newDecryptedGroup, this::resolveRecipient);
 966         final var messageBuilder = getGroupUpdateMessageBuilder(group, groupChange.toByteArray());
 967         account.getGroupStore().updateGroup(group);
 968         return sendMessage(messageBuilder, group.getMembersIncludingPendingWithout(account.getSelfRecipientId()));
 969     }
 970
 971     Pair<Long, List<SendMessageResult>> sendGroupInfoMessage(
 972             GroupIdV1 groupId, SignalServiceAddress recipient
 973     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, AttachmentInvalidException {
 974         GroupInfoV1 g;
 975         var group = getGroupForSending(groupId);
 976         if (!(group instanceof GroupInfoV1)) {
 977             throw new RuntimeException("Received an invalid group request for a v2 group!");
 978         }
 979         g = (GroupInfoV1) group;
 980
 981         final var recipientId = resolveRecipient(recipient);
 982         if (!g.isMember(recipientId)) {
 983             throw new NotAGroupMemberException(groupId, g.name);
 984         }
 985
 986         var messageBuilder = getGroupUpdateMessageBuilder(g);
 987
 988         // Send group message only to the recipient who requested it
 989         return sendMessage(messageBuilder, Set.of(recipientId));
 990     }
 991
 992     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfoV1 g) throws AttachmentInvalidException {
 993         var group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.UPDATE)
 994                 .withId(g.getGroupId().serialize())
 995                 .withName(g.name)
 996                 .withMembers(g.getMembers()
 997                         .stream()
 998                         .map(this::resolveSignalServiceAddress)
 999                         .collect(Collectors.toList()));
1000
1001         try {
1002             final var attachment = createGroupAvatarAttachment(g.getGroupId());
1003             if (attachment.isPresent()) {
1004                 group.withAvatar(attachment.get());
1005             }
1006         } catch (IOException e) {
1007             throw new AttachmentInvalidException(g.getGroupId().toBase64(), e);
1008         }
1009
1010         return SignalServiceDataMessage.newBuilder()
1011                 .asGroupMessage(group.build())
1012                 .withExpiration(g.getMessageExpirationTime());
1013     }
1014
1015     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfoV2 g, byte[] signedGroupChange) {
1016         var group = SignalServiceGroupV2.newBuilder(g.getMasterKey())
1017                 .withRevision(g.getGroup().getRevision())
1018                 .withSignedGroupChange(signedGroupChange);
1019         return SignalServiceDataMessage.newBuilder()
1020                 .asGroupMessage(group.build())
1021                 .withExpiration(g.getMessageExpirationTime());
1022     }
1023
1024     Pair<Long, List<SendMessageResult>> sendGroupInfoRequest(
1025             GroupIdV1 groupId, SignalServiceAddress recipient
1026     ) throws IOException {
1027         var group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.REQUEST_INFO).withId(groupId.serialize());
1028
1029         var messageBuilder = SignalServiceDataMessage.newBuilder().asGroupMessage(group.build());
1030
1031         // Send group info request message to the recipient who sent us a message with this groupId
1032         return sendMessage(messageBuilder, Set.of(resolveRecipient(recipient)));
1033     }
1034
1035     void sendReceipt(
1036             SignalServiceAddress remoteAddress, long messageId
1037     ) throws IOException, UntrustedIdentityException {
1038         var receiptMessage = new SignalServiceReceiptMessage(SignalServiceReceiptMessage.Type.DELIVERY,
1039                 List.of(messageId),
1040                 System.currentTimeMillis());
1041
1042         createMessageSender().sendReceipt(remoteAddress,
1043                 unidentifiedAccessHelper.getAccessFor(resolveRecipient(remoteAddress)),
1044                 receiptMessage);
1045     }
1046
1047     public Pair<Long, List<SendMessageResult>> sendMessage(
1048             String messageText, List<String> attachments, List<String> recipients
1049     ) throws IOException, AttachmentInvalidException, InvalidNumberException {
1050         final var messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
1051         if (attachments != null) {
1052             var attachmentStreams = AttachmentUtils.getSignalServiceAttachments(attachments);
1053
1054             // Upload attachments here, so we only upload once even for multiple recipients
1055             var messageSender = createMessageSender();
1056             var attachmentPointers = new ArrayList<SignalServiceAttachment>(attachmentStreams.size());
1057             for (var attachment : attachmentStreams) {
1058                 if (attachment.isStream()) {
1059                     attachmentPointers.add(messageSender.uploadAttachment(attachment.asStream()));
1060                 } else if (attachment.isPointer()) {
1061                     attachmentPointers.add(attachment.asPointer());
1062                 }
1063             }
1064
1065             messageBuilder.withAttachments(attachmentPointers);
1066         }
1067         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
1068     }
1069
1070     public Pair<Long, SendMessageResult> sendSelfMessage(
1071             String messageText, List<String> attachments
1072     ) throws IOException, AttachmentInvalidException {
1073         final var messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
1074         if (attachments != null) {
1075             messageBuilder.withAttachments(AttachmentUtils.getSignalServiceAttachments(attachments));
1076         }
1077         return sendSelfMessage(messageBuilder);
1078     }
1079
1080     public Pair<Long, List<SendMessageResult>> sendRemoteDeleteMessage(
1081             long targetSentTimestamp, List<String> recipients
1082     ) throws IOException, InvalidNumberException {
1083         var delete = new SignalServiceDataMessage.RemoteDelete(targetSentTimestamp);
1084         final var messageBuilder = SignalServiceDataMessage.newBuilder().withRemoteDelete(delete);
1085         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
1086     }
1087
1088     public Pair<Long, List<SendMessageResult>> sendGroupRemoteDeleteMessage(
1089             long targetSentTimestamp, GroupId groupId
1090     ) throws IOException, NotAGroupMemberException, GroupNotFoundException {
1091         var delete = new SignalServiceDataMessage.RemoteDelete(targetSentTimestamp);
1092         final var messageBuilder = SignalServiceDataMessage.newBuilder().withRemoteDelete(delete);
1093         return sendGroupMessage(messageBuilder, groupId);
1094     }
1095
1096     public Pair<Long, List<SendMessageResult>> sendMessageReaction(
1097             String emoji, boolean remove, String targetAuthor, long targetSentTimestamp, List<String> recipients
1098     ) throws IOException, InvalidNumberException {
1099         var targetAuthorRecipientId = canonicalizeAndResolveRecipient(targetAuthor);
1100         var reaction = new SignalServiceDataMessage.Reaction(emoji,
1101                 remove,
1102                 resolveSignalServiceAddress(targetAuthorRecipientId),
1103                 targetSentTimestamp);
1104         final var messageBuilder = SignalServiceDataMessage.newBuilder().withReaction(reaction);
1105         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
1106     }
1107
1108     public Pair<Long, List<SendMessageResult>> sendEndSessionMessage(List<String> recipients) throws IOException, InvalidNumberException {
1109         var messageBuilder = SignalServiceDataMessage.newBuilder().asEndSessionMessage();
1110
1111         final var signalServiceAddresses = getSignalServiceAddresses(recipients);
1112         try {
1113             return sendMessage(messageBuilder, signalServiceAddresses);
1114         } catch (Exception e) {
1115             for (var address : signalServiceAddresses) {
1116                 handleEndSession(address);
1117             }
1118             throw e;
1119         }
1120     }
1121
1122     void renewSession(RecipientId recipientId) throws IOException {
1123         account.getSessionStore().archiveSessions(recipientId);
1124         if (!recipientId.equals(getSelfRecipientId())) {
1125             sendNullMessage(recipientId);
1126         }
1127     }
1128
1129     public String getContactName(String number) throws InvalidNumberException {
1130         var contact = account.getContactStore().getContact(canonicalizeAndResolveRecipient(number));
1131         return contact == null || contact.getName() == null ? "" : contact.getName();
1132     }
1133
1134     public void setContactName(String number, String name) throws InvalidNumberException, NotMasterDeviceException {
1135         if (!account.isMasterDevice()) {
1136             throw new NotMasterDeviceException();
1137         }
1138         final var recipientId = canonicalizeAndResolveRecipient(number);
1139         var contact = account.getContactStore().getContact(recipientId);
1140         final var builder = contact == null ? Contact.newBuilder() : Contact.newBuilder(contact);
1141         account.getContactStore().storeContact(recipientId, builder.withName(name).build());
1142     }
1143
1144     public void setContactBlocked(
1145             String number, boolean blocked
1146     ) throws InvalidNumberException, NotMasterDeviceException {
1147         if (!account.isMasterDevice()) {
1148             throw new NotMasterDeviceException();
1149         }
1150         setContactBlocked(canonicalizeAndResolveRecipient(number), blocked);
1151     }
1152
1153     private void setContactBlocked(RecipientId recipientId, boolean blocked) {
1154         var contact = account.getContactStore().getContact(recipientId);
1155         final var builder = contact == null ? Contact.newBuilder() : Contact.newBuilder(contact);
1156         account.getContactStore().storeContact(recipientId, builder.withBlocked(blocked).build());
1157     }
1158
1159     public void setGroupBlocked(final GroupId groupId, final boolean blocked) throws GroupNotFoundException {
1160         var group = getGroup(groupId);
1161         if (group == null) {
1162             throw new GroupNotFoundException(groupId);
1163         }
1164
1165         group.setBlocked(blocked);
1166         account.getGroupStore().updateGroup(group);
1167     }
1168
1169     private void setExpirationTimer(RecipientId recipientId, int messageExpirationTimer) {
1170         var contact = account.getContactStore().getContact(recipientId);
1171         if (contact != null && contact.getMessageExpirationTime() == messageExpirationTimer) {
1172             return;
1173         }
1174         final var builder = contact == null ? Contact.newBuilder() : Contact.newBuilder(contact);
1175         account.getContactStore()
1176                 .storeContact(recipientId, builder.withMessageExpirationTime(messageExpirationTimer).build());
1177     }
1178
1179     private void sendExpirationTimerUpdate(RecipientId recipientId) throws IOException {
1180         final var messageBuilder = SignalServiceDataMessage.newBuilder().asExpirationUpdate();
1181         sendMessage(messageBuilder, Set.of(recipientId));
1182     }
1183
1184     /**
1185      * Change the expiration timer for a contact
1186      */
1187     public void setExpirationTimer(
1188             String number, int messageExpirationTimer
1189     ) throws IOException, InvalidNumberException {
1190         var recipientId = canonicalizeAndResolveRecipient(number);
1191         setExpirationTimer(recipientId, messageExpirationTimer);
1192         sendExpirationTimerUpdate(recipientId);
1193     }
1194
1195     /**
1196      * Change the expiration timer for a group
1197      */
1198     public void setExpirationTimer(GroupId groupId, int messageExpirationTimer) {
1199         var g = getGroup(groupId);
1200         if (g instanceof GroupInfoV1) {
1201             var groupInfoV1 = (GroupInfoV1) g;
1202             groupInfoV1.messageExpirationTime = messageExpirationTimer;
1203             account.getGroupStore().updateGroup(groupInfoV1);
1204         } else {
1205             throw new RuntimeException("TODO Not implemented!");
1206         }
1207     }
1208
1209     /**
1210      * Upload the sticker pack from path.
1211      *
1212      * @param path Path can be a path to a manifest.json file or to a zip file that contains a manifest.json file
1213      * @return if successful, returns the URL to install the sticker pack in the signal app
1214      */
1215     public String uploadStickerPack(File path) throws IOException, StickerPackInvalidException {
1216         var manifest = StickerUtils.getSignalServiceStickerManifestUpload(path);
1217
1218         var messageSender = createMessageSender();
1219
1220         var packKey = KeyUtils.createStickerUploadKey();
1221         var packId = messageSender.uploadStickerManifest(manifest, packKey);
1222
1223         var sticker = new Sticker(StickerPackId.deserialize(Hex.fromStringCondensed(packId)), packKey);
1224         account.getStickerStore().updateSticker(sticker);
1225
1226         try {
1227             return new URI("https",
1228                     "signal.art",
1229                     "/addstickers/",
1230                     "pack_id=" + URLEncoder.encode(packId, StandardCharsets.UTF_8) + "&pack_key=" + URLEncoder.encode(
1231                             Hex.toStringCondensed(packKey),
1232                             StandardCharsets.UTF_8)).toString();
1233         } catch (URISyntaxException e) {
1234             throw new AssertionError(e);
1235         }
1236     }
1237
1238     public void requestAllSyncData() throws IOException {
1239         requestSyncGroups();
1240         requestSyncContacts();
1241         requestSyncBlocked();
1242         requestSyncConfiguration();
1243         requestSyncKeys();
1244     }
1245
1246     private void requestSyncGroups() throws IOException {
1247         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1248                 .setType(SignalServiceProtos.SyncMessage.Request.Type.GROUPS)
1249                 .build();
1250         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1251         try {
1252             sendSyncMessage(message);
1253         } catch (UntrustedIdentityException e) {
1254             throw new AssertionError(e);
1255         }
1256     }
1257
1258     private void requestSyncContacts() throws IOException {
1259         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1260                 .setType(SignalServiceProtos.SyncMessage.Request.Type.CONTACTS)
1261                 .build();
1262         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1263         try {
1264             sendSyncMessage(message);
1265         } catch (UntrustedIdentityException e) {
1266             throw new AssertionError(e);
1267         }
1268     }
1269
1270     private void requestSyncBlocked() throws IOException {
1271         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1272                 .setType(SignalServiceProtos.SyncMessage.Request.Type.BLOCKED)
1273                 .build();
1274         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1275         try {
1276             sendSyncMessage(message);
1277         } catch (UntrustedIdentityException e) {
1278             throw new AssertionError(e);
1279         }
1280     }
1281
1282     private void requestSyncConfiguration() throws IOException {
1283         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1284                 .setType(SignalServiceProtos.SyncMessage.Request.Type.CONFIGURATION)
1285                 .build();
1286         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1287         try {
1288             sendSyncMessage(message);
1289         } catch (UntrustedIdentityException e) {
1290             throw new AssertionError(e);
1291         }
1292     }
1293
1294     private void requestSyncKeys() throws IOException {
1295         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1296                 .setType(SignalServiceProtos.SyncMessage.Request.Type.KEYS)
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 byte[] getSenderCertificate() {
1307         byte[] certificate;
1308         try {
1309             if (account.isPhoneNumberShared()) {
1310                 certificate = accountManager.getSenderCertificate();
1311             } else {
1312                 certificate = accountManager.getSenderCertificateForPhoneNumberPrivacy();
1313             }
1314         } catch (IOException e) {
1315             logger.warn("Failed to get sender certificate, ignoring: {}", e.getMessage());
1316             return null;
1317         }
1318         // TODO cache for a day
1319         return certificate;
1320     }
1321
1322     private void sendSyncMessage(SignalServiceSyncMessage message) throws IOException, UntrustedIdentityException {
1323         var messageSender = createMessageSender();
1324         messageSender.sendMessage(message, unidentifiedAccessHelper.getAccessForSync());
1325     }
1326
1327     private Set<RecipientId> getSignalServiceAddresses(Collection<String> numbers) throws InvalidNumberException {
1328         final var signalServiceAddresses = new HashSet<SignalServiceAddress>(numbers.size());
1329         final var addressesMissingUuid = new HashSet<SignalServiceAddress>();
1330
1331         for (var number : numbers) {
1332             final var resolvedAddress = resolveSignalServiceAddress(canonicalizeAndResolveRecipient(number));
1333             if (resolvedAddress.getUuid().isPresent()) {
1334                 signalServiceAddresses.add(resolvedAddress);
1335             } else {
1336                 addressesMissingUuid.add(resolvedAddress);
1337             }
1338         }
1339
1340         final var numbersMissingUuid = addressesMissingUuid.stream()
1341                 .map(a -> a.getNumber().get())
1342                 .collect(Collectors.toSet());
1343         Map<String, UUID> registeredUsers;
1344         try {
1345             registeredUsers = getRegisteredUsers(numbersMissingUuid);
1346         } catch (IOException e) {
1347             logger.warn("Failed to resolve uuids from server, ignoring: {}", e.getMessage());
1348             registeredUsers = Map.of();
1349         }
1350
1351         for (var address : addressesMissingUuid) {
1352             final var number = address.getNumber().get();
1353             if (registeredUsers.containsKey(number)) {
1354                 final var newAddress = resolveSignalServiceAddress(resolveRecipientTrusted(new SignalServiceAddress(
1355                         registeredUsers.get(number),
1356                         number)));
1357                 signalServiceAddresses.add(newAddress);
1358             } else {
1359                 signalServiceAddresses.add(address);
1360             }
1361         }
1362
1363         return signalServiceAddresses.stream().map(this::resolveRecipient).collect(Collectors.toSet());
1364     }
1365
1366     private RecipientId refreshRegisteredUser(RecipientId recipientId) throws IOException {
1367         final var address = resolveSignalServiceAddress(recipientId);
1368         if (!address.getNumber().isPresent()) {
1369             return recipientId;
1370         }
1371         final var number = address.getNumber().get();
1372         final var uuidMap = getRegisteredUsers(Set.of(number));
1373         return resolveRecipientTrusted(new SignalServiceAddress(uuidMap.getOrDefault(number, null), number));
1374     }
1375
1376     private Map<String, UUID> getRegisteredUsers(final Set<String> numbers) throws IOException {
1377         try {
1378             return accountManager.getRegisteredUsers(ServiceConfig.getIasKeyStore(),
1379                     numbers,
1380                     serviceEnvironmentConfig.getCdsMrenclave());
1381         } catch (Quote.InvalidQuoteFormatException | UnauthenticatedQuoteException | SignatureException | UnauthenticatedResponseException | InvalidKeyException e) {
1382             throw new IOException(e);
1383         }
1384     }
1385
1386     private Pair<Long, List<SendMessageResult>> sendMessage(
1387             SignalServiceDataMessage.Builder messageBuilder, Set<RecipientId> recipientIds
1388     ) throws IOException {
1389         final var timestamp = System.currentTimeMillis();
1390         messageBuilder.withTimestamp(timestamp);
1391         getOrCreateMessagePipe();
1392         getOrCreateUnidentifiedMessagePipe();
1393         SignalServiceDataMessage message = null;
1394         try {
1395             message = messageBuilder.build();
1396             if (message.getGroupContext().isPresent()) {
1397                 try {
1398                     var messageSender = createMessageSender();
1399                     final var isRecipientUpdate = false;
1400                     final var recipientIdList = new ArrayList<>(recipientIds);
1401                     final var addresses = recipientIdList.stream()
1402                             .map(this::resolveSignalServiceAddress)
1403                             .collect(Collectors.toList());
1404                     var result = messageSender.sendMessage(addresses,
1405                             unidentifiedAccessHelper.getAccessFor(recipientIdList),
1406                             isRecipientUpdate,
1407                             message);
1408
1409                     for (var r : result) {
1410                         if (r.getIdentityFailure() != null) {
1411                             final var recipientId = resolveRecipient(r.getAddress());
1412                             final var newIdentity = account.getIdentityKeyStore()
1413                                     .saveIdentity(recipientId, r.getIdentityFailure().getIdentityKey(), new Date());
1414                             if (newIdentity) {
1415                                 account.getSessionStore().archiveSessions(recipientId);
1416                             }
1417                         }
1418                     }
1419
1420                     return new Pair<>(timestamp, result);
1421                 } catch (UntrustedIdentityException e) {
1422                     return new Pair<>(timestamp, List.of());
1423                 }
1424             } else {
1425                 // Send to all individually, so sync messages are sent correctly
1426                 messageBuilder.withProfileKey(account.getProfileKey().serialize());
1427                 var results = new ArrayList<SendMessageResult>(recipientIds.size());
1428                 for (var recipientId : recipientIds) {
1429                     final var contact = account.getContactStore().getContact(recipientId);
1430                     final var expirationTime = contact != null ? contact.getMessageExpirationTime() : 0;
1431                     messageBuilder.withExpiration(expirationTime);
1432                     message = messageBuilder.build();
1433                     results.add(sendMessage(recipientId, message));
1434                 }
1435                 return new Pair<>(timestamp, results);
1436             }
1437         } finally {
1438             if (message != null && message.isEndSession()) {
1439                 for (var recipient : recipientIds) {
1440                     handleEndSession(recipient);
1441                 }
1442             }
1443         }
1444     }
1445
1446     private Pair<Long, SendMessageResult> sendSelfMessage(
1447             SignalServiceDataMessage.Builder messageBuilder
1448     ) throws IOException {
1449         final var timestamp = System.currentTimeMillis();
1450         messageBuilder.withTimestamp(timestamp);
1451         getOrCreateMessagePipe();
1452         getOrCreateUnidentifiedMessagePipe();
1453         final var recipientId = account.getSelfRecipientId();
1454
1455         final var contact = account.getContactStore().getContact(recipientId);
1456         final var expirationTime = contact != null ? contact.getMessageExpirationTime() : 0;
1457         messageBuilder.withExpiration(expirationTime);
1458
1459         var message = messageBuilder.build();
1460         final var result = sendSelfMessage(message);
1461         return new Pair<>(timestamp, result);
1462     }
1463
1464     private SendMessageResult sendSelfMessage(SignalServiceDataMessage message) throws IOException {
1465         var messageSender = createMessageSender();
1466
1467         var recipientId = account.getSelfRecipientId();
1468
1469         final var unidentifiedAccess = unidentifiedAccessHelper.getAccessFor(recipientId);
1470         var recipient = resolveSignalServiceAddress(recipientId);
1471         var transcript = new SentTranscriptMessage(Optional.of(recipient),
1472                 message.getTimestamp(),
1473                 message,
1474                 message.getExpiresInSeconds(),
1475                 Map.of(recipient, unidentifiedAccess.isPresent()),
1476                 false);
1477         var syncMessage = SignalServiceSyncMessage.forSentTranscript(transcript);
1478
1479         try {
1480             var startTime = System.currentTimeMillis();
1481             messageSender.sendMessage(syncMessage, unidentifiedAccess);
1482             return SendMessageResult.success(recipient,
1483                     unidentifiedAccess.isPresent(),
1484                     false,
1485                     System.currentTimeMillis() - startTime);
1486         } catch (UntrustedIdentityException e) {
1487             return SendMessageResult.identityFailure(recipient, e.getIdentityKey());
1488         }
1489     }
1490
1491     private SendMessageResult sendMessage(
1492             RecipientId recipientId, SignalServiceDataMessage message
1493     ) throws IOException {
1494         var messageSender = createMessageSender();
1495
1496         final var address = resolveSignalServiceAddress(recipientId);
1497         try {
1498             try {
1499                 return messageSender.sendMessage(address, unidentifiedAccessHelper.getAccessFor(recipientId), message);
1500             } catch (UnregisteredUserException e) {
1501                 final var newRecipientId = refreshRegisteredUser(recipientId);
1502                 return messageSender.sendMessage(resolveSignalServiceAddress(newRecipientId),
1503                         unidentifiedAccessHelper.getAccessFor(newRecipientId),
1504                         message);
1505             }
1506         } catch (UntrustedIdentityException e) {
1507             return SendMessageResult.identityFailure(address, e.getIdentityKey());
1508         }
1509     }
1510
1511     private SendMessageResult sendNullMessage(RecipientId recipientId) throws IOException {
1512         var messageSender = createMessageSender();
1513
1514         final var address = resolveSignalServiceAddress(recipientId);
1515         try {
1516             try {
1517                 return messageSender.sendNullMessage(address, unidentifiedAccessHelper.getAccessFor(recipientId));
1518             } catch (UnregisteredUserException e) {
1519                 final var newRecipientId = refreshRegisteredUser(recipientId);
1520                 final var newAddress = resolveSignalServiceAddress(newRecipientId);
1521                 return messageSender.sendNullMessage(newAddress, unidentifiedAccessHelper.getAccessFor(newRecipientId));
1522             }
1523         } catch (UntrustedIdentityException e) {
1524             return SendMessageResult.identityFailure(address, e.getIdentityKey());
1525         }
1526     }
1527
1528     private SignalServiceContent decryptMessage(SignalServiceEnvelope envelope) throws InvalidMetadataMessageException, ProtocolInvalidMessageException, ProtocolDuplicateMessageException, ProtocolLegacyMessageException, ProtocolInvalidKeyIdException, InvalidMetadataVersionException, ProtocolInvalidVersionException, ProtocolNoSessionException, ProtocolInvalidKeyException, SelfSendException, UnsupportedDataMessageException, ProtocolUntrustedIdentityException {
1529         var cipher = new SignalServiceCipher(account.getSelfAddress(),
1530                 account.getSignalProtocolStore(),
1531                 sessionLock,
1532                 certificateValidator);
1533         return cipher.decrypt(envelope);
1534     }
1535
1536     private void handleEndSession(RecipientId recipientId) {
1537         account.getSessionStore().deleteAllSessions(recipientId);
1538     }
1539
1540     private List<HandleAction> handleSignalServiceDataMessage(
1541             SignalServiceDataMessage message,
1542             boolean isSync,
1543             SignalServiceAddress source,
1544             SignalServiceAddress destination,
1545             boolean ignoreAttachments
1546     ) {
1547         var actions = new ArrayList<HandleAction>();
1548         if (message.getGroupContext().isPresent()) {
1549             if (message.getGroupContext().get().getGroupV1().isPresent()) {
1550                 var groupInfo = message.getGroupContext().get().getGroupV1().get();
1551                 var groupId = GroupId.v1(groupInfo.getGroupId());
1552                 var group = getGroup(groupId);
1553                 if (group == null || group instanceof GroupInfoV1) {
1554                     var groupV1 = (GroupInfoV1) group;
1555                     switch (groupInfo.getType()) {
1556                         case UPDATE: {
1557                             if (groupV1 == null) {
1558                                 groupV1 = new GroupInfoV1(groupId);
1559                             }
1560
1561                             if (groupInfo.getAvatar().isPresent()) {
1562                                 var avatar = groupInfo.getAvatar().get();
1563                                 downloadGroupAvatar(avatar, groupV1.getGroupId());
1564                             }
1565
1566                             if (groupInfo.getName().isPresent()) {
1567                                 groupV1.name = groupInfo.getName().get();
1568                             }
1569
1570                             if (groupInfo.getMembers().isPresent()) {
1571                                 groupV1.addMembers(groupInfo.getMembers()
1572                                         .get()
1573                                         .stream()
1574                                         .map(this::resolveRecipient)
1575                                         .collect(Collectors.toSet()));
1576                             }
1577
1578                             account.getGroupStore().updateGroup(groupV1);
1579                             break;
1580                         }
1581                         case DELIVER:
1582                             if (groupV1 == null && !isSync) {
1583                                 actions.add(new SendGroupInfoRequestAction(source, groupId));
1584                             }
1585                             break;
1586                         case QUIT: {
1587                             if (groupV1 != null) {
1588                                 groupV1.removeMember(resolveRecipient(source));
1589                                 account.getGroupStore().updateGroup(groupV1);
1590                             }
1591                             break;
1592                         }
1593                         case REQUEST_INFO:
1594                             if (groupV1 != null && !isSync) {
1595                                 actions.add(new SendGroupInfoAction(source, groupV1.getGroupId()));
1596                             }
1597                             break;
1598                     }
1599                 } else {
1600                     // Received a group v1 message for a v2 group
1601                 }
1602             }
1603             if (message.getGroupContext().get().getGroupV2().isPresent()) {
1604                 final var groupContext = message.getGroupContext().get().getGroupV2().get();
1605                 final var groupMasterKey = groupContext.getMasterKey();
1606
1607                 getOrMigrateGroup(groupMasterKey,
1608                         groupContext.getRevision(),
1609                         groupContext.hasSignedGroupChange() ? groupContext.getSignedGroupChange() : null);
1610             }
1611         }
1612
1613         final var conversationPartnerAddress = isSync ? destination : source;
1614         if (conversationPartnerAddress != null && message.isEndSession()) {
1615             handleEndSession(resolveRecipient(conversationPartnerAddress));
1616         }
1617         if (message.isExpirationUpdate() || message.getBody().isPresent()) {
1618             if (message.getGroupContext().isPresent()) {
1619                 if (message.getGroupContext().get().getGroupV1().isPresent()) {
1620                     var groupInfo = message.getGroupContext().get().getGroupV1().get();
1621                     var group = account.getGroupStore().getOrCreateGroupV1(GroupId.v1(groupInfo.getGroupId()));
1622                     if (group != null) {
1623                         if (group.messageExpirationTime != message.getExpiresInSeconds()) {
1624                             group.messageExpirationTime = message.getExpiresInSeconds();
1625                             account.getGroupStore().updateGroup(group);
1626                         }
1627                     }
1628                 } else if (message.getGroupContext().get().getGroupV2().isPresent()) {
1629                     // disappearing message timer already stored in the DecryptedGroup
1630                 }
1631             } else if (conversationPartnerAddress != null) {
1632                 setExpirationTimer(resolveRecipient(conversationPartnerAddress), message.getExpiresInSeconds());
1633             }
1634         }
1635         if (!ignoreAttachments) {
1636             if (message.getAttachments().isPresent()) {
1637                 for (var attachment : message.getAttachments().get()) {
1638                     downloadAttachment(attachment);
1639                 }
1640             }
1641             if (message.getSharedContacts().isPresent()) {
1642                 for (var contact : message.getSharedContacts().get()) {
1643                     if (contact.getAvatar().isPresent()) {
1644                         downloadAttachment(contact.getAvatar().get().getAttachment());
1645                     }
1646                 }
1647             }
1648         }
1649         if (message.getProfileKey().isPresent() && message.getProfileKey().get().length == 32) {
1650             final ProfileKey profileKey;
1651             try {
1652                 profileKey = new ProfileKey(message.getProfileKey().get());
1653             } catch (InvalidInputException e) {
1654                 throw new AssertionError(e);
1655             }
1656             if (source.matches(account.getSelfAddress())) {
1657                 this.account.setProfileKey(profileKey);
1658             }
1659             this.account.getProfileStore().storeProfileKey(resolveRecipient(source), profileKey);
1660         }
1661         if (message.getPreviews().isPresent()) {
1662             final var previews = message.getPreviews().get();
1663             for (var preview : previews) {
1664                 if (preview.getImage().isPresent()) {
1665                     downloadAttachment(preview.getImage().get());
1666                 }
1667             }
1668         }
1669         if (message.getQuote().isPresent()) {
1670             final var quote = message.getQuote().get();
1671
1672             for (var quotedAttachment : quote.getAttachments()) {
1673                 final var thumbnail = quotedAttachment.getThumbnail();
1674                 if (thumbnail != null) {
1675                     downloadAttachment(thumbnail);
1676                 }
1677             }
1678         }
1679         if (message.getSticker().isPresent()) {
1680             final var messageSticker = message.getSticker().get();
1681             final var stickerPackId = StickerPackId.deserialize(messageSticker.getPackId());
1682             var sticker = account.getStickerStore().getSticker(stickerPackId);
1683             if (sticker == null) {
1684                 sticker = new Sticker(stickerPackId, messageSticker.getPackKey());
1685                 account.getStickerStore().updateSticker(sticker);
1686             }
1687         }
1688         return actions;
1689     }
1690
1691     private GroupInfoV2 getOrMigrateGroup(
1692             final GroupMasterKey groupMasterKey, final int revision, final byte[] signedGroupChange
1693     ) {
1694         final var groupSecretParams = GroupSecretParams.deriveFromMasterKey(groupMasterKey);
1695
1696         var groupId = GroupUtils.getGroupIdV2(groupSecretParams);
1697         var groupInfo = getGroup(groupId);
1698         final GroupInfoV2 groupInfoV2;
1699         if (groupInfo instanceof GroupInfoV1) {
1700             // Received a v2 group message for a v1 group, we need to locally migrate the group
1701             account.getGroupStore().deleteGroupV1(((GroupInfoV1) groupInfo).getGroupId());
1702             groupInfoV2 = new GroupInfoV2(groupId, groupMasterKey);
1703             logger.info("Locally migrated group {} to group v2, id: {}",
1704                     groupInfo.getGroupId().toBase64(),
1705                     groupInfoV2.getGroupId().toBase64());
1706         } else if (groupInfo instanceof GroupInfoV2) {
1707             groupInfoV2 = (GroupInfoV2) groupInfo;
1708         } else {
1709             groupInfoV2 = new GroupInfoV2(groupId, groupMasterKey);
1710         }
1711
1712         if (groupInfoV2.getGroup() == null || groupInfoV2.getGroup().getRevision() < revision) {
1713             DecryptedGroup group = null;
1714             if (signedGroupChange != null
1715                     && groupInfoV2.getGroup() != null
1716                     && groupInfoV2.getGroup().getRevision() + 1 == revision) {
1717                 group = groupHelper.getUpdatedDecryptedGroup(groupInfoV2.getGroup(), signedGroupChange, groupMasterKey);
1718             }
1719             if (group == null) {
1720                 group = groupHelper.getDecryptedGroup(groupSecretParams);
1721             }
1722             if (group != null) {
1723                 storeProfileKeysFromMembers(group);
1724                 final var avatar = group.getAvatar();
1725                 if (avatar != null && !avatar.isEmpty()) {
1726                     downloadGroupAvatar(groupId, groupSecretParams, avatar);
1727                 }
1728             }
1729             groupInfoV2.setGroup(group, this::resolveRecipient);
1730             account.getGroupStore().updateGroup(groupInfoV2);
1731         }
1732
1733         return groupInfoV2;
1734     }
1735
1736     private void storeProfileKeysFromMembers(final DecryptedGroup group) {
1737         for (var member : group.getMembersList()) {
1738             final var uuid = UuidUtil.parseOrThrow(member.getUuid().toByteArray());
1739             final var recipientId = account.getRecipientStore().resolveRecipient(uuid);
1740             try {
1741                 account.getProfileStore()
1742                         .storeProfileKey(recipientId, new ProfileKey(member.getProfileKey().toByteArray()));
1743             } catch (InvalidInputException ignored) {
1744             }
1745         }
1746     }
1747
1748     private void retryFailedReceivedMessages(ReceiveMessageHandler handler, boolean ignoreAttachments) {
1749         Set<HandleAction> queuedActions = new HashSet<>();
1750         for (var cachedMessage : account.getMessageCache().getCachedMessages()) {
1751             var actions = retryFailedReceivedMessage(handler, ignoreAttachments, cachedMessage);
1752             if (actions != null) {
1753                 queuedActions.addAll(actions);
1754             }
1755         }
1756         for (var action : queuedActions) {
1757             try {
1758                 action.execute(this);
1759             } catch (Throwable e) {
1760                 logger.warn("Message action failed.", e);
1761             }
1762         }
1763     }
1764
1765     private List<HandleAction> retryFailedReceivedMessage(
1766             final ReceiveMessageHandler handler, final boolean ignoreAttachments, final CachedMessage cachedMessage
1767     ) {
1768         var envelope = cachedMessage.loadEnvelope();
1769         if (envelope == null) {
1770             return null;
1771         }
1772         SignalServiceContent content = null;
1773         List<HandleAction> actions = null;
1774         if (!envelope.isReceipt()) {
1775             try {
1776                 content = decryptMessage(envelope);
1777             } catch (ProtocolUntrustedIdentityException e) {
1778                 if (!envelope.hasSource()) {
1779                     final var identifier = e.getSender();
1780                     final var recipientId = resolveRecipient(identifier);
1781                     try {
1782                         account.getMessageCache().replaceSender(cachedMessage, recipientId);
1783                     } catch (IOException ioException) {
1784                         logger.warn("Failed to move cached message to recipient folder: {}", ioException.getMessage());
1785                     }
1786                 }
1787                 return null;
1788             } catch (Exception er) {
1789                 // All other errors are not recoverable, so delete the cached message
1790                 cachedMessage.delete();
1791                 return null;
1792             }
1793             actions = handleMessage(envelope, content, ignoreAttachments);
1794         }
1795         handler.handleMessage(envelope, content, null);
1796         cachedMessage.delete();
1797         return actions;
1798     }
1799
1800     public void receiveMessages(
1801             long timeout,
1802             TimeUnit unit,
1803             boolean returnOnTimeout,
1804             boolean ignoreAttachments,
1805             ReceiveMessageHandler handler
1806     ) throws IOException {
1807         retryFailedReceivedMessages(handler, ignoreAttachments);
1808
1809         Set<HandleAction> queuedActions = null;
1810
1811         final var messagePipe = getOrCreateMessagePipe();
1812
1813         var hasCaughtUpWithOldMessages = false;
1814
1815         while (true) {
1816             SignalServiceEnvelope envelope;
1817             SignalServiceContent content = null;
1818             Exception exception = null;
1819             final CachedMessage[] cachedMessage = {null};
1820             try {
1821                 var result = messagePipe.readOrEmpty(timeout, unit, envelope1 -> {
1822                     final var recipientId = envelope1.hasSource()
1823                             ? resolveRecipient(envelope1.getSourceIdentifier())
1824                             : null;
1825                     // store message on disk, before acknowledging receipt to the server
1826                     cachedMessage[0] = account.getMessageCache().cacheMessage(envelope1, recipientId);
1827                 });
1828                 if (result.isPresent()) {
1829                     envelope = result.get();
1830                 } else {
1831                     // Received indicator that server queue is empty
1832                     hasCaughtUpWithOldMessages = true;
1833
1834                     if (queuedActions != null) {
1835                         for (var action : queuedActions) {
1836                             try {
1837                                 action.execute(this);
1838                             } catch (Throwable e) {
1839                                 logger.warn("Message action failed.", e);
1840                             }
1841                         }
1842                         queuedActions.clear();
1843                         queuedActions = null;
1844                     }
1845
1846                     // Continue to wait another timeout for new messages
1847                     continue;
1848                 }
1849             } catch (TimeoutException e) {
1850                 if (returnOnTimeout) return;
1851                 continue;
1852             }
1853
1854             if (envelope.hasSource()) {
1855                 // Store uuid if we don't have it already
1856                 // address/uuid in envelope is sent by server
1857                 resolveRecipientTrusted(envelope.getSourceAddress());
1858             }
1859             final var notAGroupMember = isNotAGroupMember(envelope, content);
1860             if (!envelope.isReceipt()) {
1861                 try {
1862                     content = decryptMessage(envelope);
1863                 } catch (Exception e) {
1864                     exception = e;
1865                 }
1866                 if (!envelope.hasSource() && content != null) {
1867                     // Store uuid if we don't have it already
1868                     // address/uuid is validated by unidentified sender certificate
1869                     resolveRecipientTrusted(content.getSender());
1870                 }
1871                 var actions = handleMessage(envelope, content, ignoreAttachments);
1872                 if (exception instanceof ProtocolInvalidMessageException) {
1873                     final var sender = resolveRecipient(((ProtocolInvalidMessageException) exception).getSender());
1874                     logger.debug("Received invalid message, queuing renew session action.");
1875                     actions.add(new RenewSessionAction(sender));
1876                 }
1877                 if (hasCaughtUpWithOldMessages) {
1878                     for (var action : actions) {
1879                         try {
1880                             action.execute(this);
1881                         } catch (Throwable e) {
1882                             logger.warn("Message action failed.", e);
1883                         }
1884                     }
1885                 } else {
1886                     if (queuedActions == null) {
1887                         queuedActions = new HashSet<>();
1888                     }
1889                     queuedActions.addAll(actions);
1890                 }
1891             }
1892             if (isMessageBlocked(envelope, content)) {
1893                 logger.info("Ignoring a message from blocked user/group: {}", envelope.getTimestamp());
1894             } else if (notAGroupMember) {
1895                 logger.info("Ignoring a message from a non group member: {}", envelope.getTimestamp());
1896             } else {
1897                 handler.handleMessage(envelope, content, exception);
1898             }
1899             if (cachedMessage[0] != null) {
1900                 if (exception instanceof ProtocolUntrustedIdentityException) {
1901                     final var identifier = ((ProtocolUntrustedIdentityException) exception).getSender();
1902                     final var recipientId = resolveRecipient(identifier);
1903                     queuedActions.add(new RetrieveProfileAction(recipientId));
1904                     if (!envelope.hasSource()) {
1905                         try {
1906                             cachedMessage[0] = account.getMessageCache().replaceSender(cachedMessage[0], recipientId);
1907                         } catch (IOException ioException) {
1908                             logger.warn("Failed to move cached message to recipient folder: {}",
1909                                     ioException.getMessage());
1910                         }
1911                     }
1912                 } else {
1913                     cachedMessage[0].delete();
1914                 }
1915             }
1916         }
1917     }
1918
1919     private boolean isMessageBlocked(
1920             SignalServiceEnvelope envelope, SignalServiceContent content
1921     ) {
1922         SignalServiceAddress source;
1923         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1924             source = envelope.getSourceAddress();
1925         } else if (content != null) {
1926             source = content.getSender();
1927         } else {
1928             return false;
1929         }
1930         final var recipientId = resolveRecipient(source);
1931         if (isContactBlocked(recipientId)) {
1932             return true;
1933         }
1934
1935         if (content != null && content.getDataMessage().isPresent()) {
1936             var message = content.getDataMessage().get();
1937             if (message.getGroupContext().isPresent()) {
1938                 var groupId = GroupUtils.getGroupId(message.getGroupContext().get());
1939                 var group = getGroup(groupId);
1940                 if (group != null && group.isBlocked()) {
1941                     return true;
1942                 }
1943             }
1944         }
1945         return false;
1946     }
1947
1948     public boolean isContactBlocked(final String identifier) throws InvalidNumberException {
1949         final var recipientId = canonicalizeAndResolveRecipient(identifier);
1950         return isContactBlocked(recipientId);
1951     }
1952
1953     private boolean isContactBlocked(final RecipientId recipientId) {
1954         var sourceContact = account.getContactStore().getContact(recipientId);
1955         return sourceContact != null && sourceContact.isBlocked();
1956     }
1957
1958     private boolean isNotAGroupMember(
1959             SignalServiceEnvelope envelope, SignalServiceContent content
1960     ) {
1961         SignalServiceAddress source;
1962         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1963             source = envelope.getSourceAddress();
1964         } else if (content != null) {
1965             source = content.getSender();
1966         } else {
1967             return false;
1968         }
1969
1970         if (content != null && content.getDataMessage().isPresent()) {
1971             var message = content.getDataMessage().get();
1972             if (message.getGroupContext().isPresent()) {
1973                 if (message.getGroupContext().get().getGroupV1().isPresent()) {
1974                     var groupInfo = message.getGroupContext().get().getGroupV1().get();
1975                     if (groupInfo.getType() == SignalServiceGroup.Type.QUIT) {
1976                         return false;
1977                     }
1978                 }
1979                 var groupId = GroupUtils.getGroupId(message.getGroupContext().get());
1980                 var group = getGroup(groupId);
1981                 if (group != null && !group.isMember(resolveRecipient(source))) {
1982                     return true;
1983                 }
1984             }
1985         }
1986         return false;
1987     }
1988
1989     private List<HandleAction> handleMessage(
1990             SignalServiceEnvelope envelope, SignalServiceContent content, boolean ignoreAttachments
1991     ) {
1992         var actions = new ArrayList<HandleAction>();
1993         if (content != null) {
1994             final SignalServiceAddress sender;
1995             if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1996                 sender = envelope.getSourceAddress();
1997             } else {
1998                 sender = content.getSender();
1999             }
2000
2001             if (content.getDataMessage().isPresent()) {
2002                 var message = content.getDataMessage().get();
2003
2004                 if (content.isNeedsReceipt()) {
2005                     actions.add(new SendReceiptAction(sender, message.getTimestamp()));
2006                 }
2007
2008                 actions.addAll(handleSignalServiceDataMessage(message,
2009                         false,
2010                         sender,
2011                         account.getSelfAddress(),
2012                         ignoreAttachments));
2013             }
2014             if (content.getSyncMessage().isPresent()) {
2015                 account.setMultiDevice(true);
2016                 var syncMessage = content.getSyncMessage().get();
2017                 if (syncMessage.getSent().isPresent()) {
2018                     var message = syncMessage.getSent().get();
2019                     final var destination = message.getDestination().orNull();
2020                     actions.addAll(handleSignalServiceDataMessage(message.getMessage(),
2021                             true,
2022                             sender,
2023                             destination,
2024                             ignoreAttachments));
2025                 }
2026                 if (syncMessage.getRequest().isPresent() && account.isMasterDevice()) {
2027                     var rm = syncMessage.getRequest().get();
2028                     if (rm.isContactsRequest()) {
2029                         actions.add(SendSyncContactsAction.create());
2030                     }
2031                     if (rm.isGroupsRequest()) {
2032                         actions.add(SendSyncGroupsAction.create());
2033                     }
2034                     if (rm.isBlockedListRequest()) {
2035                         actions.add(SendSyncBlockedListAction.create());
2036                     }
2037                     // TODO Handle rm.isConfigurationRequest(); rm.isKeysRequest();
2038                 }
2039                 if (syncMessage.getGroups().isPresent()) {
2040                     File tmpFile = null;
2041                     try {
2042                         tmpFile = IOUtils.createTempFile();
2043                         final var groupsMessage = syncMessage.getGroups().get();
2044                         try (var attachmentAsStream = retrieveAttachmentAsStream(groupsMessage.asPointer(), tmpFile)) {
2045                             var s = new DeviceGroupsInputStream(attachmentAsStream);
2046                             DeviceGroup g;
2047                             while ((g = s.read()) != null) {
2048                                 var syncGroup = account.getGroupStore().getOrCreateGroupV1(GroupId.v1(g.getId()));
2049                                 if (syncGroup != null) {
2050                                     if (g.getName().isPresent()) {
2051                                         syncGroup.name = g.getName().get();
2052                                     }
2053                                     syncGroup.addMembers(g.getMembers()
2054                                             .stream()
2055                                             .map(this::resolveRecipient)
2056                                             .collect(Collectors.toSet()));
2057                                     if (!g.isActive()) {
2058                                         syncGroup.removeMember(account.getSelfRecipientId());
2059                                     } else {
2060                                         // Add ourself to the member set as it's marked as active
2061                                         syncGroup.addMembers(List.of(account.getSelfRecipientId()));
2062                                     }
2063                                     syncGroup.blocked = g.isBlocked();
2064                                     if (g.getColor().isPresent()) {
2065                                         syncGroup.color = g.getColor().get();
2066                                     }
2067
2068                                     if (g.getAvatar().isPresent()) {
2069                                         downloadGroupAvatar(g.getAvatar().get(), syncGroup.getGroupId());
2070                                     }
2071                                     syncGroup.archived = g.isArchived();
2072                                     account.getGroupStore().updateGroup(syncGroup);
2073                                 }
2074                             }
2075                         }
2076                     } catch (Exception e) {
2077                         logger.warn("Failed to handle received sync groups “{}”, ignoring: {}",
2078                                 tmpFile,
2079                                 e.getMessage());
2080                     } finally {
2081                         if (tmpFile != null) {
2082                             try {
2083                                 Files.delete(tmpFile.toPath());
2084                             } catch (IOException e) {
2085                                 logger.warn("Failed to delete received groups temp file “{}”, ignoring: {}",
2086                                         tmpFile,
2087                                         e.getMessage());
2088                             }
2089                         }
2090                     }
2091                 }
2092                 if (syncMessage.getBlockedList().isPresent()) {
2093                     final var blockedListMessage = syncMessage.getBlockedList().get();
2094                     for (var address : blockedListMessage.getAddresses()) {
2095                         setContactBlocked(resolveRecipient(address), true);
2096                     }
2097                     for (var groupId : blockedListMessage.getGroupIds()
2098                             .stream()
2099                             .map(GroupId::unknownVersion)
2100                             .collect(Collectors.toSet())) {
2101                         try {
2102                             setGroupBlocked(groupId, true);
2103                         } catch (GroupNotFoundException e) {
2104                             logger.warn("BlockedListMessage contained groupID that was not found in GroupStore: {}",
2105                                     groupId.toBase64());
2106                         }
2107                     }
2108                 }
2109                 if (syncMessage.getContacts().isPresent()) {
2110                     File tmpFile = null;
2111                     try {
2112                         tmpFile = IOUtils.createTempFile();
2113                         final var contactsMessage = syncMessage.getContacts().get();
2114                         try (var attachmentAsStream = retrieveAttachmentAsStream(contactsMessage.getContactsStream()
2115                                 .asPointer(), tmpFile)) {
2116                             var s = new DeviceContactsInputStream(attachmentAsStream);
2117                             DeviceContact c;
2118                             while ((c = s.read()) != null) {
2119                                 if (c.getAddress().matches(account.getSelfAddress()) && c.getProfileKey().isPresent()) {
2120                                     account.setProfileKey(c.getProfileKey().get());
2121                                 }
2122                                 final var recipientId = resolveRecipientTrusted(c.getAddress());
2123                                 var contact = account.getContactStore().getContact(recipientId);
2124                                 final var builder = contact == null
2125                                         ? Contact.newBuilder()
2126                                         : Contact.newBuilder(contact);
2127                                 if (c.getName().isPresent()) {
2128                                     builder.withName(c.getName().get());
2129                                 }
2130                                 if (c.getColor().isPresent()) {
2131                                     builder.withColor(c.getColor().get());
2132                                 }
2133                                 if (c.getProfileKey().isPresent()) {
2134                                     account.getProfileStore().storeProfileKey(recipientId, c.getProfileKey().get());
2135                                 }
2136                                 if (c.getVerified().isPresent()) {
2137                                     final var verifiedMessage = c.getVerified().get();
2138                                     account.getIdentityKeyStore()
2139                                             .setIdentityTrustLevel(resolveRecipientTrusted(verifiedMessage.getDestination()),
2140                                                     verifiedMessage.getIdentityKey(),
2141                                                     TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
2142                                 }
2143                                 if (c.getExpirationTimer().isPresent()) {
2144                                     builder.withMessageExpirationTime(c.getExpirationTimer().get());
2145                                 }
2146                                 builder.withBlocked(c.isBlocked());
2147                                 builder.withArchived(c.isArchived());
2148                                 account.getContactStore().storeContact(recipientId, builder.build());
2149
2150                                 if (c.getAvatar().isPresent()) {
2151                                     downloadContactAvatar(c.getAvatar().get(), c.getAddress());
2152                                 }
2153                             }
2154                         }
2155                     } catch (Exception e) {
2156                         logger.warn("Failed to handle received sync contacts “{}”, ignoring: {}",
2157                                 tmpFile,
2158                                 e.getMessage());
2159                     } finally {
2160                         if (tmpFile != null) {
2161                             try {
2162                                 Files.delete(tmpFile.toPath());
2163                             } catch (IOException e) {
2164                                 logger.warn("Failed to delete received contacts temp file “{}”, ignoring: {}",
2165                                         tmpFile,
2166                                         e.getMessage());
2167                             }
2168                         }
2169                     }
2170                 }
2171                 if (syncMessage.getVerified().isPresent()) {
2172                     final var verifiedMessage = syncMessage.getVerified().get();
2173                     account.getIdentityKeyStore()
2174                             .setIdentityTrustLevel(resolveRecipientTrusted(verifiedMessage.getDestination()),
2175                                     verifiedMessage.getIdentityKey(),
2176                                     TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
2177                 }
2178                 if (syncMessage.getStickerPackOperations().isPresent()) {
2179                     final var stickerPackOperationMessages = syncMessage.getStickerPackOperations().get();
2180                     for (var m : stickerPackOperationMessages) {
2181                         if (!m.getPackId().isPresent()) {
2182                             continue;
2183                         }
2184                         final var stickerPackId = StickerPackId.deserialize(m.getPackId().get());
2185                         var sticker = account.getStickerStore().getSticker(stickerPackId);
2186                         if (sticker == null) {
2187                             if (!m.getPackKey().isPresent()) {
2188                                 continue;
2189                             }
2190                             sticker = new Sticker(stickerPackId, m.getPackKey().get());
2191                         }
2192                         sticker.setInstalled(!m.getType().isPresent()
2193                                 || m.getType().get() == StickerPackOperationMessage.Type.INSTALL);
2194                         account.getStickerStore().updateSticker(sticker);
2195                     }
2196                 }
2197                 if (syncMessage.getFetchType().isPresent()) {
2198                     switch (syncMessage.getFetchType().get()) {
2199                         case LOCAL_PROFILE:
2200                             getRecipientProfile(account.getSelfRecipientId(), true);
2201                         case STORAGE_MANIFEST:
2202                             // TODO
2203                     }
2204                 }
2205                 if (syncMessage.getKeys().isPresent()) {
2206                     final var keysMessage = syncMessage.getKeys().get();
2207                     if (keysMessage.getStorageService().isPresent()) {
2208                         final var storageKey = keysMessage.getStorageService().get();
2209                         account.setStorageKey(storageKey);
2210                     }
2211                 }
2212                 if (syncMessage.getConfiguration().isPresent()) {
2213                     // TODO
2214                 }
2215             }
2216         }
2217         return actions;
2218     }
2219
2220     private void downloadContactAvatar(SignalServiceAttachment avatar, SignalServiceAddress address) {
2221         try {
2222             avatarStore.storeContactAvatar(address, outputStream -> retrieveAttachment(avatar, outputStream));
2223         } catch (IOException e) {
2224             logger.warn("Failed to download avatar for contact {}, ignoring: {}", address, e.getMessage());
2225         }
2226     }
2227
2228     private void downloadGroupAvatar(SignalServiceAttachment avatar, GroupId groupId) {
2229         try {
2230             avatarStore.storeGroupAvatar(groupId, outputStream -> retrieveAttachment(avatar, outputStream));
2231         } catch (IOException e) {
2232             logger.warn("Failed to download avatar for group {}, ignoring: {}", groupId.toBase64(), e.getMessage());
2233         }
2234     }
2235
2236     private void downloadGroupAvatar(GroupId groupId, GroupSecretParams groupSecretParams, String cdnKey) {
2237         try {
2238             avatarStore.storeGroupAvatar(groupId,
2239                     outputStream -> retrieveGroupV2Avatar(groupSecretParams, cdnKey, outputStream));
2240         } catch (IOException e) {
2241             logger.warn("Failed to download avatar for group {}, ignoring: {}", groupId.toBase64(), e.getMessage());
2242         }
2243     }
2244
2245     private void downloadProfileAvatar(
2246             SignalServiceAddress address, String avatarPath, ProfileKey profileKey
2247     ) {
2248         try {
2249             avatarStore.storeProfileAvatar(address,
2250                     outputStream -> retrieveProfileAvatar(avatarPath, profileKey, outputStream));
2251         } catch (Throwable e) {
2252             logger.warn("Failed to download profile avatar, ignoring: {}", e.getMessage());
2253         }
2254     }
2255
2256     public File getAttachmentFile(SignalServiceAttachmentRemoteId attachmentId) {
2257         return attachmentStore.getAttachmentFile(attachmentId);
2258     }
2259
2260     private void downloadAttachment(final SignalServiceAttachment attachment) {
2261         if (!attachment.isPointer()) {
2262             logger.warn("Invalid state, can't store an attachment stream.");
2263         }
2264
2265         var pointer = attachment.asPointer();
2266         if (pointer.getPreview().isPresent()) {
2267             final var preview = pointer.getPreview().get();
2268             try {
2269                 attachmentStore.storeAttachmentPreview(pointer.getRemoteId(),
2270                         outputStream -> outputStream.write(preview, 0, preview.length));
2271             } catch (IOException e) {
2272                 logger.warn("Failed to download attachment preview, ignoring: {}", e.getMessage());
2273             }
2274         }
2275
2276         try {
2277             attachmentStore.storeAttachment(pointer.getRemoteId(),
2278                     outputStream -> retrieveAttachmentPointer(pointer, outputStream));
2279         } catch (IOException e) {
2280             logger.warn("Failed to download attachment ({}), ignoring: {}", pointer.getRemoteId(), e.getMessage());
2281         }
2282     }
2283
2284     private void retrieveGroupV2Avatar(
2285             GroupSecretParams groupSecretParams, String cdnKey, OutputStream outputStream
2286     ) throws IOException {
2287         var groupOperations = groupsV2Operations.forGroup(groupSecretParams);
2288
2289         var tmpFile = IOUtils.createTempFile();
2290         try (InputStream input = messageReceiver.retrieveGroupsV2ProfileAvatar(cdnKey,
2291                 tmpFile,
2292                 ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
2293             var encryptedData = IOUtils.readFully(input);
2294
2295             var decryptedData = groupOperations.decryptAvatar(encryptedData);
2296             outputStream.write(decryptedData);
2297         } finally {
2298             try {
2299                 Files.delete(tmpFile.toPath());
2300             } catch (IOException e) {
2301                 logger.warn("Failed to delete received group avatar temp file “{}”, ignoring: {}",
2302                         tmpFile,
2303                         e.getMessage());
2304             }
2305         }
2306     }
2307
2308     private void retrieveProfileAvatar(
2309             String avatarPath, ProfileKey profileKey, OutputStream outputStream
2310     ) throws IOException {
2311         var tmpFile = IOUtils.createTempFile();
2312         try (var input = messageReceiver.retrieveProfileAvatar(avatarPath,
2313                 tmpFile,
2314                 profileKey,
2315                 ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
2316             // Use larger buffer size to prevent AssertionError: Need: 12272 but only have: 8192 ...
2317             IOUtils.copyStream(input, outputStream, (int) ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE);
2318         } finally {
2319             try {
2320                 Files.delete(tmpFile.toPath());
2321             } catch (IOException e) {
2322                 logger.warn("Failed to delete received profile avatar temp file “{}”, ignoring: {}",
2323                         tmpFile,
2324                         e.getMessage());
2325             }
2326         }
2327     }
2328
2329     private void retrieveAttachment(
2330             final SignalServiceAttachment attachment, final OutputStream outputStream
2331     ) throws IOException {
2332         if (attachment.isPointer()) {
2333             var pointer = attachment.asPointer();
2334             retrieveAttachmentPointer(pointer, outputStream);
2335         } else {
2336             var stream = attachment.asStream();
2337             IOUtils.copyStream(stream.getInputStream(), outputStream);
2338         }
2339     }
2340
2341     private void retrieveAttachmentPointer(
2342             SignalServiceAttachmentPointer pointer, OutputStream outputStream
2343     ) throws IOException {
2344         var tmpFile = IOUtils.createTempFile();
2345         try (var input = retrieveAttachmentAsStream(pointer, tmpFile)) {
2346             IOUtils.copyStream(input, outputStream);
2347         } catch (MissingConfigurationException | InvalidMessageException e) {
2348             throw new IOException(e);
2349         } finally {
2350             try {
2351                 Files.delete(tmpFile.toPath());
2352             } catch (IOException e) {
2353                 logger.warn("Failed to delete received attachment temp file “{}”, ignoring: {}",
2354                         tmpFile,
2355                         e.getMessage());
2356             }
2357         }
2358     }
2359
2360     private InputStream retrieveAttachmentAsStream(
2361             SignalServiceAttachmentPointer pointer, File tmpFile
2362     ) throws IOException, InvalidMessageException, MissingConfigurationException {
2363         return messageReceiver.retrieveAttachment(pointer, tmpFile, ServiceConfig.MAX_ATTACHMENT_SIZE);
2364     }
2365
2366     void sendGroups() throws IOException, UntrustedIdentityException {
2367         var groupsFile = IOUtils.createTempFile();
2368
2369         try {
2370             try (OutputStream fos = new FileOutputStream(groupsFile)) {
2371                 var out = new DeviceGroupsOutputStream(fos);
2372                 for (var record : getGroups()) {
2373                     if (record instanceof GroupInfoV1) {
2374                         var groupInfo = (GroupInfoV1) record;
2375                         out.write(new DeviceGroup(groupInfo.getGroupId().serialize(),
2376                                 Optional.fromNullable(groupInfo.name),
2377                                 groupInfo.getMembers()
2378                                         .stream()
2379                                         .map(this::resolveSignalServiceAddress)
2380                                         .collect(Collectors.toList()),
2381                                 createGroupAvatarAttachment(groupInfo.getGroupId()),
2382                                 groupInfo.isMember(account.getSelfRecipientId()),
2383                                 Optional.of(groupInfo.messageExpirationTime),
2384                                 Optional.fromNullable(groupInfo.color),
2385                                 groupInfo.blocked,
2386                                 Optional.absent(),
2387                                 groupInfo.archived));
2388                     }
2389                 }
2390             }
2391
2392             if (groupsFile.exists() && groupsFile.length() > 0) {
2393                 try (var groupsFileStream = new FileInputStream(groupsFile)) {
2394                     var attachmentStream = SignalServiceAttachment.newStreamBuilder()
2395                             .withStream(groupsFileStream)
2396                             .withContentType("application/octet-stream")
2397                             .withLength(groupsFile.length())
2398                             .build();
2399
2400                     sendSyncMessage(SignalServiceSyncMessage.forGroups(attachmentStream));
2401                 }
2402             }
2403         } finally {
2404             try {
2405                 Files.delete(groupsFile.toPath());
2406             } catch (IOException e) {
2407                 logger.warn("Failed to delete groups temp file “{}”, ignoring: {}", groupsFile, e.getMessage());
2408             }
2409         }
2410     }
2411
2412     public void sendContacts() throws IOException, UntrustedIdentityException {
2413         var contactsFile = IOUtils.createTempFile();
2414
2415         try {
2416             try (OutputStream fos = new FileOutputStream(contactsFile)) {
2417                 var out = new DeviceContactsOutputStream(fos);
2418                 for (var contactPair : account.getContactStore().getContacts()) {
2419                     final var recipientId = contactPair.first();
2420                     final var contact = contactPair.second();
2421                     final var address = resolveSignalServiceAddress(recipientId);
2422
2423                     var currentIdentity = account.getIdentityKeyStore().getIdentity(recipientId);
2424                     VerifiedMessage verifiedMessage = null;
2425                     if (currentIdentity != null) {
2426                         verifiedMessage = new VerifiedMessage(address,
2427                                 currentIdentity.getIdentityKey(),
2428                                 currentIdentity.getTrustLevel().toVerifiedState(),
2429                                 currentIdentity.getDateAdded().getTime());
2430                     }
2431
2432                     var profileKey = account.getProfileStore().getProfileKey(recipientId);
2433                     out.write(new DeviceContact(address,
2434                             Optional.fromNullable(contact.getName()),
2435                             createContactAvatarAttachment(address),
2436                             Optional.fromNullable(contact.getColor()),
2437                             Optional.fromNullable(verifiedMessage),
2438                             Optional.fromNullable(profileKey),
2439                             contact.isBlocked(),
2440                             Optional.of(contact.getMessageExpirationTime()),
2441                             Optional.absent(),
2442                             contact.isArchived()));
2443                 }
2444
2445                 if (account.getProfileKey() != null) {
2446                     // Send our own profile key as well
2447                     out.write(new DeviceContact(account.getSelfAddress(),
2448                             Optional.absent(),
2449                             Optional.absent(),
2450                             Optional.absent(),
2451                             Optional.absent(),
2452                             Optional.of(account.getProfileKey()),
2453                             false,
2454                             Optional.absent(),
2455                             Optional.absent(),
2456                             false));
2457                 }
2458             }
2459
2460             if (contactsFile.exists() && contactsFile.length() > 0) {
2461                 try (var contactsFileStream = new FileInputStream(contactsFile)) {
2462                     var attachmentStream = SignalServiceAttachment.newStreamBuilder()
2463                             .withStream(contactsFileStream)
2464                             .withContentType("application/octet-stream")
2465                             .withLength(contactsFile.length())
2466                             .build();
2467
2468                     sendSyncMessage(SignalServiceSyncMessage.forContacts(new ContactsMessage(attachmentStream, true)));
2469                 }
2470             }
2471         } finally {
2472             try {
2473                 Files.delete(contactsFile.toPath());
2474             } catch (IOException e) {
2475                 logger.warn("Failed to delete contacts temp file “{}”, ignoring: {}", contactsFile, e.getMessage());
2476             }
2477         }
2478     }
2479
2480     void sendBlockedList() throws IOException, UntrustedIdentityException {
2481         var addresses = new ArrayList<SignalServiceAddress>();
2482         for (var record : account.getContactStore().getContacts()) {
2483             if (record.second().isBlocked()) {
2484                 addresses.add(resolveSignalServiceAddress(record.first()));
2485             }
2486         }
2487         var groupIds = new ArrayList<byte[]>();
2488         for (var record : getGroups()) {
2489             if (record.isBlocked()) {
2490                 groupIds.add(record.getGroupId().serialize());
2491             }
2492         }
2493         sendSyncMessage(SignalServiceSyncMessage.forBlocked(new BlockedListMessage(addresses, groupIds)));
2494     }
2495
2496     private void sendVerifiedMessage(
2497             SignalServiceAddress destination, IdentityKey identityKey, TrustLevel trustLevel
2498     ) throws IOException, UntrustedIdentityException {
2499         var verifiedMessage = new VerifiedMessage(destination,
2500                 identityKey,
2501                 trustLevel.toVerifiedState(),
2502                 System.currentTimeMillis());
2503         sendSyncMessage(SignalServiceSyncMessage.forVerified(verifiedMessage));
2504     }
2505
2506     public List<Pair<RecipientId, Contact>> getContacts() {
2507         return account.getContactStore().getContacts();
2508     }
2509
2510     public String getContactOrProfileName(String number) throws InvalidNumberException {
2511         final var recipientId = canonicalizeAndResolveRecipient(number);
2512         final var recipient = account.getRecipientStore().getRecipient(recipientId);
2513         if (recipient == null) {
2514             return null;
2515         }
2516
2517         if (recipient.getContact() != null && !Util.isEmpty(recipient.getContact().getName())) {
2518             return recipient.getContact().getName();
2519         }
2520
2521         if (recipient.getProfile() != null && recipient.getProfile() != null) {
2522             return recipient.getProfile().getDisplayName();
2523         }
2524
2525         return null;
2526     }
2527
2528     public GroupInfo getGroup(GroupId groupId) {
2529         final var group = account.getGroupStore().getGroup(groupId);
2530         if (group instanceof GroupInfoV2 && ((GroupInfoV2) group).getGroup() == null) {
2531             final var groupSecretParams = GroupSecretParams.deriveFromMasterKey(((GroupInfoV2) group).getMasterKey());
2532             ((GroupInfoV2) group).setGroup(groupHelper.getDecryptedGroup(groupSecretParams), this::resolveRecipient);
2533             account.getGroupStore().updateGroup(group);
2534         }
2535         return group;
2536     }
2537
2538     public List<IdentityInfo> getIdentities() {
2539         return account.getIdentityKeyStore().getIdentities();
2540     }
2541
2542     public List<IdentityInfo> getIdentities(String number) throws InvalidNumberException {
2543         final var identity = account.getIdentityKeyStore().getIdentity(canonicalizeAndResolveRecipient(number));
2544         return identity == null ? List.of() : List.of(identity);
2545     }
2546
2547     /**
2548      * Trust this the identity with this fingerprint
2549      *
2550      * @param name        username of the identity
2551      * @param fingerprint Fingerprint
2552      */
2553     public boolean trustIdentityVerified(String name, byte[] fingerprint) throws InvalidNumberException {
2554         var recipientId = canonicalizeAndResolveRecipient(name);
2555         return trustIdentity(recipientId,
2556                 identityKey -> Arrays.equals(identityKey.serialize(), fingerprint),
2557                 TrustLevel.TRUSTED_VERIFIED);
2558     }
2559
2560     /**
2561      * Trust this the identity with this safety number
2562      *
2563      * @param name         username of the identity
2564      * @param safetyNumber Safety number
2565      */
2566     public boolean trustIdentityVerifiedSafetyNumber(String name, String safetyNumber) throws InvalidNumberException {
2567         var recipientId = canonicalizeAndResolveRecipient(name);
2568         var address = account.getRecipientStore().resolveServiceAddress(recipientId);
2569         return trustIdentity(recipientId,
2570                 identityKey -> safetyNumber.equals(computeSafetyNumber(address, identityKey)),
2571                 TrustLevel.TRUSTED_VERIFIED);
2572     }
2573
2574     /**
2575      * Trust all keys of this identity without verification
2576      *
2577      * @param name username of the identity
2578      */
2579     public boolean trustIdentityAllKeys(String name) throws InvalidNumberException {
2580         var recipientId = canonicalizeAndResolveRecipient(name);
2581         return trustIdentity(recipientId, identityKey -> true, TrustLevel.TRUSTED_UNVERIFIED);
2582     }
2583
2584     private boolean trustIdentity(
2585             RecipientId recipientId, Function<IdentityKey, Boolean> verifier, TrustLevel trustLevel
2586     ) {
2587         var identity = account.getIdentityKeyStore().getIdentity(recipientId);
2588         if (identity == null) {
2589             return false;
2590         }
2591
2592         if (!verifier.apply(identity.getIdentityKey())) {
2593             return false;
2594         }
2595
2596         account.getIdentityKeyStore().setIdentityTrustLevel(recipientId, identity.getIdentityKey(), trustLevel);
2597         try {
2598             var address = account.getRecipientStore().resolveServiceAddress(recipientId);
2599             sendVerifiedMessage(address, identity.getIdentityKey(), trustLevel);
2600         } catch (IOException | UntrustedIdentityException e) {
2601             logger.warn("Failed to send verification sync message: {}", e.getMessage());
2602         }
2603
2604         return true;
2605     }
2606
2607     public String computeSafetyNumber(
2608             SignalServiceAddress theirAddress, IdentityKey theirIdentityKey
2609     ) {
2610         return Utils.computeSafetyNumber(ServiceConfig.capabilities.isUuid(),
2611                 account.getSelfAddress(),
2612                 getIdentityKeyPair().getPublicKey(),
2613                 theirAddress,
2614                 theirIdentityKey);
2615     }
2616
2617     @Deprecated
2618     public SignalServiceAddress resolveSignalServiceAddress(String identifier) {
2619         var address = Utils.getSignalServiceAddressFromIdentifier(identifier);
2620
2621         return resolveSignalServiceAddress(address);
2622     }
2623
2624     @Deprecated
2625     public SignalServiceAddress resolveSignalServiceAddress(SignalServiceAddress address) {
2626         if (address.matches(account.getSelfAddress())) {
2627             return account.getSelfAddress();
2628         }
2629
2630         return account.getRecipientStore().resolveServiceAddress(address);
2631     }
2632
2633     public SignalServiceAddress resolveSignalServiceAddress(RecipientId recipientId) {
2634         return account.getRecipientStore().resolveServiceAddress(recipientId);
2635     }
2636
2637     public RecipientId canonicalizeAndResolveRecipient(String identifier) throws InvalidNumberException {
2638         var canonicalizedNumber = UuidUtil.isUuid(identifier)
2639                 ? identifier
2640                 : PhoneNumberFormatter.formatNumber(identifier, account.getUsername());
2641
2642         return resolveRecipient(canonicalizedNumber);
2643     }
2644
2645     private RecipientId resolveRecipient(final String identifier) {
2646         var address = Utils.getSignalServiceAddressFromIdentifier(identifier);
2647
2648         return resolveRecipient(address);
2649     }
2650
2651     public RecipientId resolveRecipient(SignalServiceAddress address) {
2652         return account.getRecipientStore().resolveRecipient(address);
2653     }
2654
2655     private RecipientId resolveRecipientTrusted(SignalServiceAddress address) {
2656         return account.getRecipientStore().resolveRecipientTrusted(address);
2657     }
2658
2659     @Override
2660     public void close() throws IOException {
2661         close(true);
2662     }
2663
2664     void close(boolean closeAccount) throws IOException {
2665         executor.shutdown();
2666
2667         if (messagePipe != null) {
2668             messagePipe.shutdown();
2669             messagePipe = null;
2670         }
2671
2672         if (unidentifiedMessagePipe != null) {
2673             unidentifiedMessagePipe.shutdown();
2674             unidentifiedMessagePipe = null;
2675         }
2676
2677         if (closeAccount && account != null) {
2678             account.close();
2679         }
2680         account = null;
2681     }
2682
2683     public interface ReceiveMessageHandler {
2684
2685         void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent decryptedContent, Throwable e);
2686     }
2687 }