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

   1 /*
   2   Copyright (C) 2015-2021 AsamK and contributors
   3
   4   This program is free software: you can redistribute it and/or modify
   5   it under the terms of the GNU General Public License as published by
   6   the Free Software Foundation, either version 3 of the License, or
   7   (at your option) any later version.
   8
   9   This program is distributed in the hope that it will be useful,
  10   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12   GNU General Public License for more details.
  13
  14   You should have received a copy of the GNU General Public License
  15   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17 package org.asamk.signal.manager;
  18
  19 import org.asamk.signal.manager.api.Device;
  20 import org.asamk.signal.manager.api.TypingAction;
  21 import org.asamk.signal.manager.config.ServiceConfig;
  22 import org.asamk.signal.manager.config.ServiceEnvironment;
  23 import org.asamk.signal.manager.config.ServiceEnvironmentConfig;
  24 import org.asamk.signal.manager.groups.GroupId;
  25 import org.asamk.signal.manager.groups.GroupIdV1;
  26 import org.asamk.signal.manager.groups.GroupInviteLinkUrl;
  27 import org.asamk.signal.manager.groups.GroupLinkState;
  28 import org.asamk.signal.manager.groups.GroupNotFoundException;
  29 import org.asamk.signal.manager.groups.GroupPermission;
  30 import org.asamk.signal.manager.groups.GroupUtils;
  31 import org.asamk.signal.manager.groups.LastGroupAdminException;
  32 import org.asamk.signal.manager.groups.NotAGroupMemberException;
  33 import org.asamk.signal.manager.helper.GroupV2Helper;
  34 import org.asamk.signal.manager.helper.PinHelper;
  35 import org.asamk.signal.manager.helper.ProfileHelper;
  36 import org.asamk.signal.manager.helper.UnidentifiedAccessHelper;
  37 import org.asamk.signal.manager.jobs.Context;
  38 import org.asamk.signal.manager.jobs.Job;
  39 import org.asamk.signal.manager.jobs.RetrieveStickerPackJob;
  40 import org.asamk.signal.manager.storage.SignalAccount;
  41 import org.asamk.signal.manager.storage.groups.GroupInfo;
  42 import org.asamk.signal.manager.storage.groups.GroupInfoV1;
  43 import org.asamk.signal.manager.storage.groups.GroupInfoV2;
  44 import org.asamk.signal.manager.storage.identities.IdentityInfo;
  45 import org.asamk.signal.manager.storage.messageCache.CachedMessage;
  46 import org.asamk.signal.manager.storage.recipients.Contact;
  47 import org.asamk.signal.manager.storage.recipients.Profile;
  48 import org.asamk.signal.manager.storage.recipients.RecipientId;
  49 import org.asamk.signal.manager.storage.stickers.Sticker;
  50 import org.asamk.signal.manager.storage.stickers.StickerPackId;
  51 import org.asamk.signal.manager.util.AttachmentUtils;
  52 import org.asamk.signal.manager.util.IOUtils;
  53 import org.asamk.signal.manager.util.KeyUtils;
  54 import org.asamk.signal.manager.util.ProfileUtils;
  55 import org.asamk.signal.manager.util.StickerUtils;
  56 import org.asamk.signal.manager.util.Utils;
  57 import org.signal.libsignal.metadata.InvalidMetadataMessageException;
  58 import org.signal.libsignal.metadata.InvalidMetadataVersionException;
  59 import org.signal.libsignal.metadata.ProtocolDuplicateMessageException;
  60 import org.signal.libsignal.metadata.ProtocolInvalidKeyException;
  61 import org.signal.libsignal.metadata.ProtocolInvalidKeyIdException;
  62 import org.signal.libsignal.metadata.ProtocolInvalidMessageException;
  63 import org.signal.libsignal.metadata.ProtocolInvalidVersionException;
  64 import org.signal.libsignal.metadata.ProtocolLegacyMessageException;
  65 import org.signal.libsignal.metadata.ProtocolNoSessionException;
  66 import org.signal.libsignal.metadata.ProtocolUntrustedIdentityException;
  67 import org.signal.libsignal.metadata.SelfSendException;
  68 import org.signal.libsignal.metadata.certificate.CertificateValidator;
  69 import org.signal.storageservice.protos.groups.GroupChange;
  70 import org.signal.storageservice.protos.groups.local.DecryptedGroup;
  71 import org.signal.zkgroup.InvalidInputException;
  72 import org.signal.zkgroup.VerificationFailedException;
  73 import org.signal.zkgroup.groups.GroupMasterKey;
  74 import org.signal.zkgroup.groups.GroupSecretParams;
  75 import org.signal.zkgroup.profiles.ClientZkProfileOperations;
  76 import org.signal.zkgroup.profiles.ProfileKey;
  77 import org.signal.zkgroup.profiles.ProfileKeyCredential;
  78 import org.slf4j.Logger;
  79 import org.slf4j.LoggerFactory;
  80 import org.whispersystems.libsignal.IdentityKey;
  81 import org.whispersystems.libsignal.IdentityKeyPair;
  82 import org.whispersystems.libsignal.InvalidKeyException;
  83 import org.whispersystems.libsignal.InvalidMessageException;
  84 import org.whispersystems.libsignal.ecc.ECPublicKey;
  85 import org.whispersystems.libsignal.state.PreKeyRecord;
  86 import org.whispersystems.libsignal.state.SignedPreKeyRecord;
  87 import org.whispersystems.libsignal.util.Pair;
  88 import org.whispersystems.libsignal.util.guava.Optional;
  89 import org.whispersystems.signalservice.api.SignalServiceAccountManager;
  90 import org.whispersystems.signalservice.api.SignalServiceMessagePipe;
  91 import org.whispersystems.signalservice.api.SignalServiceMessageReceiver;
  92 import org.whispersystems.signalservice.api.SignalServiceMessageSender;
  93 import org.whispersystems.signalservice.api.SignalSessionLock;
  94 import org.whispersystems.signalservice.api.crypto.ContentHint;
  95 import org.whispersystems.signalservice.api.crypto.SignalServiceCipher;
  96 import org.whispersystems.signalservice.api.crypto.UntrustedIdentityException;
  97 import org.whispersystems.signalservice.api.groupsv2.ClientZkOperations;
  98 import org.whispersystems.signalservice.api.groupsv2.GroupLinkNotActiveException;
  99 import org.whispersystems.signalservice.api.groupsv2.GroupsV2Api;
 100 import org.whispersystems.signalservice.api.groupsv2.GroupsV2AuthorizationString;
 101 import org.whispersystems.signalservice.api.groupsv2.GroupsV2Operations;
 102 import org.whispersystems.signalservice.api.messages.SendMessageResult;
 103 import org.whispersystems.signalservice.api.messages.SignalServiceAttachment;
 104 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentPointer;
 105 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentRemoteId;
 106 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentStream;
 107 import org.whispersystems.signalservice.api.messages.SignalServiceContent;
 108 import org.whispersystems.signalservice.api.messages.SignalServiceDataMessage;
 109 import org.whispersystems.signalservice.api.messages.SignalServiceEnvelope;
 110 import org.whispersystems.signalservice.api.messages.SignalServiceGroup;
 111 import org.whispersystems.signalservice.api.messages.SignalServiceGroupV2;
 112 import org.whispersystems.signalservice.api.messages.SignalServiceReceiptMessage;
 113 import org.whispersystems.signalservice.api.messages.SignalServiceTypingMessage;
 114 import org.whispersystems.signalservice.api.messages.multidevice.BlockedListMessage;
 115 import org.whispersystems.signalservice.api.messages.multidevice.ContactsMessage;
 116 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContact;
 117 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsInputStream;
 118 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsOutputStream;
 119 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroup;
 120 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsInputStream;
 121 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsOutputStream;
 122 import org.whispersystems.signalservice.api.messages.multidevice.RequestMessage;
 123 import org.whispersystems.signalservice.api.messages.multidevice.SentTranscriptMessage;
 124 import org.whispersystems.signalservice.api.messages.multidevice.SignalServiceSyncMessage;
 125 import org.whispersystems.signalservice.api.messages.multidevice.StickerPackOperationMessage;
 126 import org.whispersystems.signalservice.api.messages.multidevice.VerifiedMessage;
 127 import org.whispersystems.signalservice.api.profiles.ProfileAndCredential;
 128 import org.whispersystems.signalservice.api.profiles.SignalServiceProfile;
 129 import org.whispersystems.signalservice.api.push.SignalServiceAddress;
 130 import org.whispersystems.signalservice.api.push.exceptions.ConflictException;
 131 import org.whispersystems.signalservice.api.push.exceptions.MissingConfigurationException;
 132 import org.whispersystems.signalservice.api.push.exceptions.UnregisteredUserException;
 133 import org.whispersystems.signalservice.api.util.DeviceNameUtil;
 134 import org.whispersystems.signalservice.api.util.InvalidNumberException;
 135 import org.whispersystems.signalservice.api.util.PhoneNumberFormatter;
 136 import org.whispersystems.signalservice.api.util.SleepTimer;
 137 import org.whispersystems.signalservice.api.util.UptimeSleepTimer;
 138 import org.whispersystems.signalservice.api.util.UuidUtil;
 139 import org.whispersystems.signalservice.internal.contacts.crypto.Quote;
 140 import org.whispersystems.signalservice.internal.contacts.crypto.UnauthenticatedQuoteException;
 141 import org.whispersystems.signalservice.internal.contacts.crypto.UnauthenticatedResponseException;
 142 import org.whispersystems.signalservice.internal.push.SignalServiceProtos;
 143 import org.whispersystems.signalservice.internal.push.UnsupportedDataMessageException;
 144 import org.whispersystems.signalservice.internal.util.DynamicCredentialsProvider;
 145 import org.whispersystems.signalservice.internal.util.Hex;
 146 import org.whispersystems.signalservice.internal.util.Util;
 147
 148 import java.io.Closeable;
 149 import java.io.File;
 150 import java.io.FileInputStream;
 151 import java.io.FileOutputStream;
 152 import java.io.IOException;
 153 import java.io.InputStream;
 154 import java.io.OutputStream;
 155 import java.net.URI;
 156 import java.net.URISyntaxException;
 157 import java.net.URLEncoder;
 158 import java.nio.charset.StandardCharsets;
 159 import java.nio.file.Files;
 160 import java.security.SignatureException;
 161 import java.util.ArrayList;
 162 import java.util.Arrays;
 163 import java.util.Base64;
 164 import java.util.Collection;
 165 import java.util.Date;
 166 import java.util.HashSet;
 167 import java.util.List;
 168 import java.util.Map;
 169 import java.util.Set;
 170 import java.util.UUID;
 171 import java.util.concurrent.ExecutorService;
 172 import java.util.concurrent.Executors;
 173 import java.util.concurrent.TimeUnit;
 174 import java.util.concurrent.TimeoutException;
 175 import java.util.concurrent.locks.ReentrantLock;
 176 import java.util.function.Function;
 177 import java.util.stream.Collectors;
 178
 179 import static org.asamk.signal.manager.config.ServiceConfig.capabilities;
 180
 181 public class Manager implements Closeable {
 182
 183     private final static Logger logger = LoggerFactory.getLogger(Manager.class);
 184
 185     private final CertificateValidator certificateValidator;
 186
 187     private final ServiceEnvironmentConfig serviceEnvironmentConfig;
 188     private final String userAgent;
 189
 190     private SignalAccount account;
 191     private final SignalServiceAccountManager accountManager;
 192     private final GroupsV2Api groupsV2Api;
 193     private final GroupsV2Operations groupsV2Operations;
 194     private final SignalServiceMessageReceiver messageReceiver;
 195     private final ClientZkProfileOperations clientZkProfileOperations;
 196
 197     private final ExecutorService executor = Executors.newCachedThreadPool();
 198
 199     private SignalServiceMessagePipe messagePipe = null;
 200     private SignalServiceMessagePipe unidentifiedMessagePipe = null;
 201
 202     private final UnidentifiedAccessHelper unidentifiedAccessHelper;
 203     private final ProfileHelper profileHelper;
 204     private final GroupV2Helper groupV2Helper;
 205     private final PinHelper pinHelper;
 206     private final AvatarStore avatarStore;
 207     private final AttachmentStore attachmentStore;
 208     private final StickerPackStore stickerPackStore;
 209     private final SignalSessionLock sessionLock = new SignalSessionLock() {
 210         private final ReentrantLock LEGACY_LOCK = new ReentrantLock();
 211
 212         @Override
 213         public Lock acquire() {
 214             LEGACY_LOCK.lock();
 215             return LEGACY_LOCK::unlock;
 216         }
 217     };
 218
 219     Manager(
 220             SignalAccount account,
 221             PathConfig pathConfig,
 222             ServiceEnvironmentConfig serviceEnvironmentConfig,
 223             String userAgent
 224     ) {
 225         this.account = account;
 226         this.serviceEnvironmentConfig = serviceEnvironmentConfig;
 227         this.certificateValidator = new CertificateValidator(serviceEnvironmentConfig.getUnidentifiedSenderTrustRoot());
 228         this.userAgent = userAgent;
 229         this.groupsV2Operations = capabilities.isGv2() ? new GroupsV2Operations(ClientZkOperations.create(
 230                 serviceEnvironmentConfig.getSignalServiceConfiguration())) : null;
 231         final SleepTimer timer = new UptimeSleepTimer();
 232         this.accountManager = new SignalServiceAccountManager(serviceEnvironmentConfig.getSignalServiceConfiguration(),
 233                 new DynamicCredentialsProvider(account.getUuid(),
 234                         account.getUsername(),
 235                         account.getPassword(),
 236                         account.getDeviceId()),
 237                 userAgent,
 238                 groupsV2Operations,
 239                 ServiceConfig.AUTOMATIC_NETWORK_RETRY,
 240                 timer);
 241         this.groupsV2Api = accountManager.getGroupsV2Api();
 242         final var keyBackupService = accountManager.getKeyBackupService(ServiceConfig.getIasKeyStore(),
 243                 serviceEnvironmentConfig.getKeyBackupConfig().getEnclaveName(),
 244                 serviceEnvironmentConfig.getKeyBackupConfig().getServiceId(),
 245                 serviceEnvironmentConfig.getKeyBackupConfig().getMrenclave(),
 246                 10);
 247
 248         this.pinHelper = new PinHelper(keyBackupService);
 249         this.clientZkProfileOperations = capabilities.isGv2()
 250                 ? ClientZkOperations.create(serviceEnvironmentConfig.getSignalServiceConfiguration())
 251                 .getProfileOperations()
 252                 : null;
 253         this.messageReceiver = new SignalServiceMessageReceiver(serviceEnvironmentConfig.getSignalServiceConfiguration(),
 254                 account.getUuid(),
 255                 account.getUsername(),
 256                 account.getPassword(),
 257                 account.getDeviceId(),
 258                 userAgent,
 259                 null,
 260                 timer,
 261                 clientZkProfileOperations,
 262                 ServiceConfig.AUTOMATIC_NETWORK_RETRY);
 263
 264         this.unidentifiedAccessHelper = new UnidentifiedAccessHelper(account::getProfileKey,
 265                 account.getProfileStore()::getProfileKey,
 266                 this::getRecipientProfile,
 267                 this::getSenderCertificate);
 268         this.profileHelper = new ProfileHelper(account.getProfileStore()::getProfileKey,
 269                 unidentifiedAccessHelper::getAccessFor,
 270                 unidentified -> unidentified ? getOrCreateUnidentifiedMessagePipe() : getOrCreateMessagePipe(),
 271                 () -> messageReceiver,
 272                 this::resolveSignalServiceAddress);
 273         this.groupV2Helper = new GroupV2Helper(this::getRecipientProfileKeyCredential,
 274                 this::getRecipientProfile,
 275                 account::getSelfRecipientId,
 276                 groupsV2Operations,
 277                 groupsV2Api,
 278                 this::getGroupAuthForToday,
 279                 this::resolveSignalServiceAddress);
 280         this.avatarStore = new AvatarStore(pathConfig.getAvatarsPath());
 281         this.attachmentStore = new AttachmentStore(pathConfig.getAttachmentsPath());
 282         this.stickerPackStore = new StickerPackStore(pathConfig.getStickerPacksPath());
 283     }
 284
 285     public String getUsername() {
 286         return account.getUsername();
 287     }
 288
 289     public SignalServiceAddress getSelfAddress() {
 290         return account.getSelfAddress();
 291     }
 292
 293     public RecipientId getSelfRecipientId() {
 294         return account.getSelfRecipientId();
 295     }
 296
 297     private IdentityKeyPair getIdentityKeyPair() {
 298         return account.getIdentityKeyPair();
 299     }
 300
 301     public int getDeviceId() {
 302         return account.getDeviceId();
 303     }
 304
 305     public static Manager init(
 306             String username, File settingsPath, ServiceEnvironment serviceEnvironment, String userAgent
 307     ) throws IOException, NotRegisteredException {
 308         var pathConfig = PathConfig.createDefault(settingsPath);
 309
 310         if (!SignalAccount.userExists(pathConfig.getDataPath(), username)) {
 311             throw new NotRegisteredException();
 312         }
 313
 314         var account = SignalAccount.load(pathConfig.getDataPath(), username, true);
 315
 316         if (!account.isRegistered()) {
 317             throw new NotRegisteredException();
 318         }
 319
 320         final var serviceEnvironmentConfig = ServiceConfig.getServiceEnvironmentConfig(serviceEnvironment, userAgent);
 321
 322         return new Manager(account, pathConfig, serviceEnvironmentConfig, userAgent);
 323     }
 324
 325     public static List<String> getAllLocalUsernames(File settingsPath) {
 326         var pathConfig = PathConfig.createDefault(settingsPath);
 327         final var dataPath = pathConfig.getDataPath();
 328         final var files = dataPath.listFiles();
 329
 330         if (files == null) {
 331             return List.of();
 332         }
 333
 334         return Arrays.stream(files)
 335                 .filter(File::isFile)
 336                 .map(File::getName)
 337                 .filter(file -> PhoneNumberFormatter.isValidNumber(file, null))
 338                 .collect(Collectors.toList());
 339     }
 340
 341     public void checkAccountState() throws IOException {
 342         if (account.getLastReceiveTimestamp() == 0) {
 343             logger.warn("The Signal protocol expects that incoming messages are regularly received.");
 344         } else {
 345             var diffInMilliseconds = System.currentTimeMillis() - account.getLastReceiveTimestamp();
 346             long days = TimeUnit.DAYS.convert(diffInMilliseconds, TimeUnit.MILLISECONDS);
 347             if (days > 7) {
 348                 logger.warn(
 349                         "Messages have been last received {} days ago. The Signal protocol expects that incoming messages are regularly received.",
 350                         days);
 351             }
 352         }
 353         if (accountManager.getPreKeysCount() < ServiceConfig.PREKEY_MINIMUM_COUNT) {
 354             refreshPreKeys();
 355         }
 356         if (account.getUuid() == null) {
 357             account.setUuid(accountManager.getOwnUuid());
 358         }
 359         updateAccountAttributes();
 360     }
 361
 362     /**
 363      * This is used for checking a set of phone numbers for registration on Signal
 364      *
 365      * @param numbers The set of phone number in question
 366      * @return A map of numbers to booleans. True if registered, false otherwise. Should never be null
 367      * @throws IOException if its unable to get the contacts to check if they're registered
 368      */
 369     public Map<String, Boolean> areUsersRegistered(Set<String> numbers) throws IOException {
 370         // Note "contactDetails" has no optionals. It only gives us info on users who are registered
 371         var contactDetails = getRegisteredUsers(numbers);
 372
 373         var registeredUsers = contactDetails.keySet();
 374
 375         return numbers.stream().collect(Collectors.toMap(x -> x, registeredUsers::contains));
 376     }
 377
 378     public void updateAccountAttributes() throws IOException {
 379         accountManager.setAccountAttributes(account.getEncryptedDeviceName(),
 380                 null,
 381                 account.getLocalRegistrationId(),
 382                 true,
 383                 // set legacy pin only if no KBS master key is set
 384                 account.getPinMasterKey() == null ? account.getRegistrationLockPin() : null,
 385                 account.getPinMasterKey() == null ? null : account.getPinMasterKey().deriveRegistrationLock(),
 386                 account.getSelfUnidentifiedAccessKey(),
 387                 account.isUnrestrictedUnidentifiedAccess(),
 388                 capabilities,
 389                 account.isDiscoverableByPhoneNumber());
 390     }
 391
 392     /**
 393      * @param givenName  if null, the previous givenName will be kept
 394      * @param familyName if null, the previous familyName will be kept
 395      * @param about      if null, the previous about text will be kept
 396      * @param aboutEmoji if null, the previous about emoji will be kept
 397      * @param avatar     if avatar is null the image from the local avatar store is used (if present),
 398      */
 399     public void setProfile(
 400             String givenName, final String familyName, String about, String aboutEmoji, Optional<File> avatar
 401     ) throws IOException {
 402         var profile = getRecipientProfile(account.getSelfRecipientId());
 403         var builder = profile == null ? Profile.newBuilder() : Profile.newBuilder(profile);
 404         if (givenName != null) {
 405             builder.withGivenName(givenName);
 406         }
 407         if (familyName != null) {
 408             builder.withFamilyName(familyName);
 409         }
 410         if (about != null) {
 411             builder.withAbout(about);
 412         }
 413         if (aboutEmoji != null) {
 414             builder.withAboutEmoji(aboutEmoji);
 415         }
 416         var newProfile = builder.build();
 417
 418         try (final var streamDetails = avatar == null
 419                 ? avatarStore.retrieveProfileAvatar(getSelfAddress())
 420                 : avatar.isPresent() ? Utils.createStreamDetailsFromFile(avatar.get()) : null) {
 421             accountManager.setVersionedProfile(account.getUuid(),
 422                     account.getProfileKey(),
 423                     newProfile.getInternalServiceName(),
 424                     newProfile.getAbout() == null ? "" : newProfile.getAbout(),
 425                     newProfile.getAboutEmoji() == null ? "" : newProfile.getAboutEmoji(),
 426                     Optional.absent(),
 427                     streamDetails);
 428         }
 429
 430         if (avatar != null) {
 431             if (avatar.isPresent()) {
 432                 avatarStore.storeProfileAvatar(getSelfAddress(),
 433                         outputStream -> IOUtils.copyFileToStream(avatar.get(), outputStream));
 434             } else {
 435                 avatarStore.deleteProfileAvatar(getSelfAddress());
 436             }
 437         }
 438         account.getProfileStore().storeProfile(account.getSelfRecipientId(), newProfile);
 439
 440         try {
 441             sendSyncMessage(SignalServiceSyncMessage.forFetchLatest(SignalServiceSyncMessage.FetchType.LOCAL_PROFILE));
 442         } catch (UntrustedIdentityException ignored) {
 443         }
 444     }
 445
 446     public void unregister() throws IOException {
 447         // When setting an empty GCM id, the Signal-Server also sets the fetchesMessages property to false.
 448         // If this is the master device, other users can't send messages to this number anymore.
 449         // If this is a linked device, other users can still send messages, but this device doesn't receive them anymore.
 450         accountManager.setGcmId(Optional.absent());
 451
 452         account.setRegistered(false);
 453     }
 454
 455     public void deleteAccount() throws IOException {
 456         accountManager.deleteAccount();
 457
 458         account.setRegistered(false);
 459     }
 460
 461     public List<Device> getLinkedDevices() throws IOException {
 462         var devices = accountManager.getDevices();
 463         account.setMultiDevice(devices.size() > 1);
 464         var identityKey = account.getIdentityKeyPair().getPrivateKey();
 465         return devices.stream().map(d -> {
 466             String deviceName = d.getName();
 467             if (deviceName != null) {
 468                 try {
 469                     deviceName = DeviceNameUtil.decryptDeviceName(deviceName, identityKey);
 470                 } catch (IOException e) {
 471                     logger.debug("Failed to decrypt device name, maybe plain text?", e);
 472                 }
 473             }
 474             return new Device(d.getId(), deviceName, d.getCreated(), d.getLastSeen());
 475         }).collect(Collectors.toList());
 476     }
 477
 478     public void removeLinkedDevices(int deviceId) throws IOException {
 479         accountManager.removeDevice(deviceId);
 480         var devices = accountManager.getDevices();
 481         account.setMultiDevice(devices.size() > 1);
 482     }
 483
 484     public void addDeviceLink(URI linkUri) throws IOException, InvalidKeyException {
 485         var info = DeviceLinkInfo.parseDeviceLinkUri(linkUri);
 486
 487         addDevice(info.deviceIdentifier, info.deviceKey);
 488     }
 489
 490     private void addDevice(String deviceIdentifier, ECPublicKey deviceKey) throws IOException, InvalidKeyException {
 491         var identityKeyPair = getIdentityKeyPair();
 492         var verificationCode = accountManager.getNewDeviceVerificationCode();
 493
 494         accountManager.addDevice(deviceIdentifier,
 495                 deviceKey,
 496                 identityKeyPair,
 497                 Optional.of(account.getProfileKey().serialize()),
 498                 verificationCode);
 499         account.setMultiDevice(true);
 500     }
 501
 502     public void setRegistrationLockPin(Optional<String> pin) throws IOException, UnauthenticatedResponseException {
 503         if (!account.isMasterDevice()) {
 504             throw new RuntimeException("Only master device can set a PIN");
 505         }
 506         if (pin.isPresent()) {
 507             final var masterKey = account.getPinMasterKey() != null
 508                     ? account.getPinMasterKey()
 509                     : KeyUtils.createMasterKey();
 510
 511             pinHelper.setRegistrationLockPin(pin.get(), masterKey);
 512
 513             account.setRegistrationLockPin(pin.get(), masterKey);
 514         } else {
 515             // Remove legacy registration lock
 516             accountManager.removeRegistrationLockV1();
 517
 518             // Remove KBS Pin
 519             pinHelper.removeRegistrationLockPin();
 520
 521             account.setRegistrationLockPin(null, null);
 522         }
 523     }
 524
 525     void refreshPreKeys() throws IOException {
 526         var oneTimePreKeys = generatePreKeys();
 527         final var identityKeyPair = getIdentityKeyPair();
 528         var signedPreKeyRecord = generateSignedPreKey(identityKeyPair);
 529
 530         accountManager.setPreKeys(identityKeyPair.getPublicKey(), signedPreKeyRecord, oneTimePreKeys);
 531     }
 532
 533     private List<PreKeyRecord> generatePreKeys() {
 534         final var offset = account.getPreKeyIdOffset();
 535
 536         var records = KeyUtils.generatePreKeyRecords(offset, ServiceConfig.PREKEY_BATCH_SIZE);
 537         account.addPreKeys(records);
 538
 539         return records;
 540     }
 541
 542     private SignedPreKeyRecord generateSignedPreKey(IdentityKeyPair identityKeyPair) {
 543         final var signedPreKeyId = account.getNextSignedPreKeyId();
 544
 545         var record = KeyUtils.generateSignedPreKeyRecord(identityKeyPair, signedPreKeyId);
 546         account.addSignedPreKey(record);
 547
 548         return record;
 549     }
 550
 551     private SignalServiceMessagePipe getOrCreateMessagePipe() {
 552         if (messagePipe == null) {
 553             messagePipe = messageReceiver.createMessagePipe();
 554         }
 555         return messagePipe;
 556     }
 557
 558     private SignalServiceMessagePipe getOrCreateUnidentifiedMessagePipe() {
 559         if (unidentifiedMessagePipe == null) {
 560             unidentifiedMessagePipe = messageReceiver.createUnidentifiedMessagePipe();
 561         }
 562         return unidentifiedMessagePipe;
 563     }
 564
 565     private SignalServiceMessageSender createMessageSender() {
 566         return new SignalServiceMessageSender(serviceEnvironmentConfig.getSignalServiceConfiguration(),
 567                 account.getUuid(),
 568                 account.getUsername(),
 569                 account.getPassword(),
 570                 account.getDeviceId(),
 571                 account.getSignalProtocolStore(),
 572                 sessionLock,
 573                 userAgent,
 574                 account.isMultiDevice(),
 575                 Optional.fromNullable(messagePipe),
 576                 Optional.fromNullable(unidentifiedMessagePipe),
 577                 Optional.absent(),
 578                 clientZkProfileOperations,
 579                 executor,
 580                 ServiceConfig.MAX_ENVELOPE_SIZE,
 581                 ServiceConfig.AUTOMATIC_NETWORK_RETRY);
 582     }
 583
 584     public Profile getRecipientProfile(
 585             RecipientId recipientId
 586     ) {
 587         return getRecipientProfile(recipientId, false);
 588     }
 589
 590     private final Set<RecipientId> pendingProfileRequest = new HashSet<>();
 591
 592     Profile getRecipientProfile(
 593             RecipientId recipientId, boolean force
 594     ) {
 595         var profile = account.getProfileStore().getProfile(recipientId);
 596
 597         var now = System.currentTimeMillis();
 598         // Profiles are cached for 24h before retrieving them again, unless forced
 599         if (!force && profile != null && now - profile.getLastUpdateTimestamp() < 24 * 60 * 60 * 1000) {
 600             return profile;
 601         }
 602
 603         synchronized (pendingProfileRequest) {
 604             if (pendingProfileRequest.contains(recipientId)) {
 605                 return profile;
 606             }
 607             pendingProfileRequest.add(recipientId);
 608         }
 609         final SignalServiceProfile encryptedProfile;
 610         try {
 611             encryptedProfile = retrieveEncryptedProfile(recipientId);
 612         } finally {
 613             synchronized (pendingProfileRequest) {
 614                 pendingProfileRequest.remove(recipientId);
 615             }
 616         }
 617         if (encryptedProfile == null) {
 618             return null;
 619         }
 620
 621         profile = decryptProfileIfKeyKnown(recipientId, encryptedProfile);
 622         account.getProfileStore().storeProfile(recipientId, profile);
 623
 624         return profile;
 625     }
 626
 627     private Profile decryptProfileIfKeyKnown(
 628             final RecipientId recipientId, final SignalServiceProfile encryptedProfile
 629     ) {
 630         var profileKey = account.getProfileStore().getProfileKey(recipientId);
 631         if (profileKey == null) {
 632             return new Profile(System.currentTimeMillis(),
 633                     null,
 634                     null,
 635                     null,
 636                     null,
 637                     ProfileUtils.getUnidentifiedAccessMode(encryptedProfile, null),
 638                     ProfileUtils.getCapabilities(encryptedProfile));
 639         }
 640
 641         return decryptProfileAndDownloadAvatar(recipientId, profileKey, encryptedProfile);
 642     }
 643
 644     private SignalServiceProfile retrieveEncryptedProfile(RecipientId recipientId) {
 645         try {
 646             return retrieveProfileAndCredential(recipientId, SignalServiceProfile.RequestType.PROFILE).getProfile();
 647         } catch (IOException e) {
 648             logger.warn("Failed to retrieve profile, ignoring: {}", e.getMessage());
 649             return null;
 650         }
 651     }
 652
 653     private ProfileAndCredential retrieveProfileAndCredential(
 654             final RecipientId recipientId, final SignalServiceProfile.RequestType requestType
 655     ) throws IOException {
 656         final var profileAndCredential = profileHelper.retrieveProfileSync(recipientId, requestType);
 657         final var profile = profileAndCredential.getProfile();
 658
 659         try {
 660             var newIdentity = account.getIdentityKeyStore()
 661                     .saveIdentity(recipientId,
 662                             new IdentityKey(Base64.getDecoder().decode(profile.getIdentityKey())),
 663                             new Date());
 664
 665             if (newIdentity) {
 666                 account.getSessionStore().archiveSessions(recipientId);
 667             }
 668         } catch (InvalidKeyException ignored) {
 669             logger.warn("Got invalid identity key in profile for {}",
 670                     resolveSignalServiceAddress(recipientId).getIdentifier());
 671         }
 672         return profileAndCredential;
 673     }
 674
 675     private ProfileKeyCredential getRecipientProfileKeyCredential(RecipientId recipientId) {
 676         var profileKeyCredential = account.getProfileStore().getProfileKeyCredential(recipientId);
 677         if (profileKeyCredential != null) {
 678             return profileKeyCredential;
 679         }
 680
 681         ProfileAndCredential profileAndCredential;
 682         try {
 683             profileAndCredential = retrieveProfileAndCredential(recipientId,
 684                     SignalServiceProfile.RequestType.PROFILE_AND_CREDENTIAL);
 685         } catch (IOException e) {
 686             logger.warn("Failed to retrieve profile key credential, ignoring: {}", e.getMessage());
 687             return null;
 688         }
 689
 690         profileKeyCredential = profileAndCredential.getProfileKeyCredential().orNull();
 691         account.getProfileStore().storeProfileKeyCredential(recipientId, profileKeyCredential);
 692
 693         var profileKey = account.getProfileStore().getProfileKey(recipientId);
 694         if (profileKey != null) {
 695             final var profile = decryptProfileAndDownloadAvatar(recipientId,
 696                     profileKey,
 697                     profileAndCredential.getProfile());
 698             account.getProfileStore().storeProfile(recipientId, profile);
 699         }
 700
 701         return profileKeyCredential;
 702     }
 703
 704     private Profile decryptProfileAndDownloadAvatar(
 705             final RecipientId recipientId, final ProfileKey profileKey, final SignalServiceProfile encryptedProfile
 706     ) {
 707         if (encryptedProfile.getAvatar() != null) {
 708             downloadProfileAvatar(resolveSignalServiceAddress(recipientId), encryptedProfile.getAvatar(), profileKey);
 709         }
 710
 711         return ProfileUtils.decryptProfile(profileKey, encryptedProfile);
 712     }
 713
 714     private Optional<SignalServiceAttachmentStream> createGroupAvatarAttachment(GroupId groupId) throws IOException {
 715         final var streamDetails = avatarStore.retrieveGroupAvatar(groupId);
 716         if (streamDetails == null) {
 717             return Optional.absent();
 718         }
 719
 720         return Optional.of(AttachmentUtils.createAttachment(streamDetails, Optional.absent()));
 721     }
 722
 723     private Optional<SignalServiceAttachmentStream> createContactAvatarAttachment(SignalServiceAddress address) throws IOException {
 724         final var streamDetails = avatarStore.retrieveContactAvatar(address);
 725         if (streamDetails == null) {
 726             return Optional.absent();
 727         }
 728
 729         return Optional.of(AttachmentUtils.createAttachment(streamDetails, Optional.absent()));
 730     }
 731
 732     private GroupInfo getGroupForSending(GroupId groupId) throws GroupNotFoundException, NotAGroupMemberException {
 733         var g = getGroup(groupId);
 734         if (g == null) {
 735             throw new GroupNotFoundException(groupId);
 736         }
 737         if (!g.isMember(account.getSelfRecipientId())) {
 738             throw new NotAGroupMemberException(groupId, g.getTitle());
 739         }
 740         return g;
 741     }
 742
 743     private GroupInfo getGroupForUpdating(GroupId groupId) throws GroupNotFoundException, NotAGroupMemberException {
 744         var g = getGroup(groupId);
 745         if (g == null) {
 746             throw new GroupNotFoundException(groupId);
 747         }
 748         if (!g.isMember(account.getSelfRecipientId()) && !g.isPendingMember(account.getSelfRecipientId())) {
 749             throw new NotAGroupMemberException(groupId, g.getTitle());
 750         }
 751         return g;
 752     }
 753
 754     public List<GroupInfo> getGroups() {
 755         return account.getGroupStore().getGroups();
 756     }
 757
 758     public Pair<Long, List<SendMessageResult>> sendGroupMessage(
 759             String messageText, List<String> attachments, GroupId groupId
 760     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 761         final var messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
 762         if (attachments != null) {
 763             messageBuilder.withAttachments(AttachmentUtils.getSignalServiceAttachments(attachments));
 764         }
 765
 766         return sendGroupMessage(messageBuilder, groupId);
 767     }
 768
 769     public Pair<Long, List<SendMessageResult>> sendGroupMessageReaction(
 770             String emoji, boolean remove, String targetAuthor, long targetSentTimestamp, GroupId groupId
 771     ) throws IOException, InvalidNumberException, NotAGroupMemberException, GroupNotFoundException {
 772         var targetAuthorRecipientId = canonicalizeAndResolveRecipient(targetAuthor);
 773         var reaction = new SignalServiceDataMessage.Reaction(emoji,
 774                 remove,
 775                 resolveSignalServiceAddress(targetAuthorRecipientId),
 776                 targetSentTimestamp);
 777         final var messageBuilder = SignalServiceDataMessage.newBuilder().withReaction(reaction);
 778
 779         return sendGroupMessage(messageBuilder, groupId);
 780     }
 781
 782     public Pair<Long, List<SendMessageResult>> sendGroupMessage(
 783             SignalServiceDataMessage.Builder messageBuilder, GroupId groupId
 784     ) throws IOException, GroupNotFoundException, NotAGroupMemberException {
 785         final var g = getGroupForSending(groupId);
 786
 787         GroupUtils.setGroupContext(messageBuilder, g);
 788         messageBuilder.withExpiration(g.getMessageExpirationTime());
 789
 790         return sendMessage(messageBuilder, g.getMembersWithout(account.getSelfRecipientId()));
 791     }
 792
 793     public Pair<Long, List<SendMessageResult>> sendQuitGroupMessage(
 794             GroupId groupId, Set<String> groupAdmins
 795     ) throws GroupNotFoundException, IOException, NotAGroupMemberException, InvalidNumberException, LastGroupAdminException {
 796         var group = getGroupForUpdating(groupId);
 797         if (group instanceof GroupInfoV1) {
 798             return quitGroupV1((GroupInfoV1) group);
 799         }
 800
 801         final var newAdmins = getSignalServiceAddresses(groupAdmins);
 802         try {
 803             return quitGroupV2((GroupInfoV2) group, newAdmins);
 804         } catch (ConflictException e) {
 805             // Detected conflicting update, refreshing group and trying again
 806             group = getGroup(groupId, true);
 807             return quitGroupV2((GroupInfoV2) group, newAdmins);
 808         }
 809     }
 810
 811     private Pair<Long, List<SendMessageResult>> quitGroupV1(final GroupInfoV1 groupInfoV1) throws IOException {
 812         var group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.QUIT)
 813                 .withId(groupInfoV1.getGroupId().serialize())
 814                 .build();
 815
 816         var messageBuilder = SignalServiceDataMessage.newBuilder().asGroupMessage(group);
 817         groupInfoV1.removeMember(account.getSelfRecipientId());
 818         account.getGroupStore().updateGroup(groupInfoV1);
 819         return sendMessage(messageBuilder, groupInfoV1.getMembersWithout(account.getSelfRecipientId()));
 820     }
 821
 822     private Pair<Long, List<SendMessageResult>> quitGroupV2(
 823             final GroupInfoV2 groupInfoV2, final Set<RecipientId> newAdmins
 824     ) throws LastGroupAdminException, IOException {
 825         final var currentAdmins = groupInfoV2.getAdminMembers();
 826         newAdmins.removeAll(currentAdmins);
 827         newAdmins.retainAll(groupInfoV2.getMembers());
 828         if (currentAdmins.contains(getSelfRecipientId())
 829                 && currentAdmins.size() == 1
 830                 && groupInfoV2.getMembers().size() > 1
 831                 && newAdmins.size() == 0) {
 832             // Last admin can't leave the group, unless she's also the last member
 833             throw new LastGroupAdminException(groupInfoV2.getGroupId(), groupInfoV2.getTitle());
 834         }
 835         final var groupGroupChangePair = groupV2Helper.leaveGroup(groupInfoV2, newAdmins);
 836         groupInfoV2.setGroup(groupGroupChangePair.first(), this::resolveRecipient);
 837         var messageBuilder = getGroupUpdateMessageBuilder(groupInfoV2, groupGroupChangePair.second().toByteArray());
 838         account.getGroupStore().updateGroup(groupInfoV2);
 839         return sendMessage(messageBuilder, groupInfoV2.getMembersWithout(account.getSelfRecipientId()));
 840     }
 841
 842     public void deleteGroup(GroupId groupId) throws IOException {
 843         account.getGroupStore().deleteGroup(groupId);
 844         avatarStore.deleteGroupAvatar(groupId);
 845     }
 846
 847     public Pair<GroupId, List<SendMessageResult>> createGroup(
 848             String name, List<String> members, File avatarFile
 849     ) throws IOException, AttachmentInvalidException, InvalidNumberException {
 850         return createGroup(name, members == null ? null : getSignalServiceAddresses(members), avatarFile);
 851     }
 852
 853     private Pair<GroupId, List<SendMessageResult>> createGroup(
 854             String name, Set<RecipientId> members, File avatarFile
 855     ) throws IOException, AttachmentInvalidException {
 856         final var selfRecipientId = account.getSelfRecipientId();
 857         if (members != null && members.contains(selfRecipientId)) {
 858             members = new HashSet<>(members);
 859             members.remove(selfRecipientId);
 860         }
 861
 862         var gv2Pair = groupV2Helper.createGroup(name == null ? "" : name,
 863                 members == null ? Set.of() : members,
 864                 avatarFile);
 865
 866         SignalServiceDataMessage.Builder messageBuilder;
 867         if (gv2Pair == null) {
 868             // Failed to create v2 group, creating v1 group instead
 869             var gv1 = new GroupInfoV1(GroupIdV1.createRandom());
 870             gv1.addMembers(List.of(selfRecipientId));
 871             final var result = updateGroupV1(gv1, name, members, avatarFile);
 872             return new Pair<>(gv1.getGroupId(), result.second());
 873         }
 874
 875         final var gv2 = gv2Pair.first();
 876         final var decryptedGroup = gv2Pair.second();
 877
 878         gv2.setGroup(decryptedGroup, this::resolveRecipient);
 879         if (avatarFile != null) {
 880             avatarStore.storeGroupAvatar(gv2.getGroupId(),
 881                     outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
 882         }
 883         messageBuilder = getGroupUpdateMessageBuilder(gv2, null);
 884         account.getGroupStore().updateGroup(gv2);
 885
 886         final var result = sendMessage(messageBuilder, gv2.getMembersIncludingPendingWithout(selfRecipientId));
 887         return new Pair<>(gv2.getGroupId(), result.second());
 888     }
 889
 890     public Pair<Long, List<SendMessageResult>> updateGroup(
 891             GroupId groupId,
 892             String name,
 893             String description,
 894             List<String> members,
 895             List<String> removeMembers,
 896             List<String> admins,
 897             List<String> removeAdmins,
 898             boolean resetGroupLink,
 899             GroupLinkState groupLinkState,
 900             GroupPermission addMemberPermission,
 901             GroupPermission editDetailsPermission,
 902             File avatarFile,
 903             Integer expirationTimer
 904     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, InvalidNumberException, NotAGroupMemberException {
 905         return updateGroup(groupId,
 906                 name,
 907                 description,
 908                 members == null ? null : getSignalServiceAddresses(members),
 909                 removeMembers == null ? null : getSignalServiceAddresses(removeMembers),
 910                 admins == null ? null : getSignalServiceAddresses(admins),
 911                 removeAdmins == null ? null : getSignalServiceAddresses(removeAdmins),
 912                 resetGroupLink,
 913                 groupLinkState,
 914                 addMemberPermission,
 915                 editDetailsPermission,
 916                 avatarFile,
 917                 expirationTimer);
 918     }
 919
 920     private Pair<Long, List<SendMessageResult>> updateGroup(
 921             final GroupId groupId,
 922             final String name,
 923             final String description,
 924             final Set<RecipientId> members,
 925             final Set<RecipientId> removeMembers,
 926             final Set<RecipientId> admins,
 927             final Set<RecipientId> removeAdmins,
 928             final boolean resetGroupLink,
 929             final GroupLinkState groupLinkState,
 930             final GroupPermission addMemberPermission,
 931             final GroupPermission editDetailsPermission,
 932             final File avatarFile,
 933             final Integer expirationTimer
 934     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 935         var group = getGroupForUpdating(groupId);
 936
 937         if (group instanceof GroupInfoV2) {
 938             try {
 939                 return updateGroupV2((GroupInfoV2) group,
 940                         name,
 941                         description,
 942                         members,
 943                         removeMembers,
 944                         admins,
 945                         removeAdmins,
 946                         resetGroupLink,
 947                         groupLinkState,
 948                         addMemberPermission,
 949                         editDetailsPermission,
 950                         avatarFile,
 951                         expirationTimer);
 952             } catch (ConflictException e) {
 953                 // Detected conflicting update, refreshing group and trying again
 954                 group = getGroup(groupId, true);
 955                 return updateGroupV2((GroupInfoV2) group,
 956                         name,
 957                         description,
 958                         members,
 959                         removeMembers,
 960                         admins,
 961                         removeAdmins,
 962                         resetGroupLink,
 963                         groupLinkState,
 964                         addMemberPermission,
 965                         editDetailsPermission,
 966                         avatarFile,
 967                         expirationTimer);
 968             }
 969         }
 970
 971         final var gv1 = (GroupInfoV1) group;
 972         final var result = updateGroupV1(gv1, name, members, avatarFile);
 973         if (expirationTimer != null) {
 974             setExpirationTimer(gv1, expirationTimer);
 975         }
 976         return result;
 977     }
 978
 979     private Pair<Long, List<SendMessageResult>> updateGroupV1(
 980             final GroupInfoV1 gv1, final String name, final Set<RecipientId> members, final File avatarFile
 981     ) throws IOException, AttachmentInvalidException {
 982         updateGroupV1Details(gv1, name, members, avatarFile);
 983         var messageBuilder = getGroupUpdateMessageBuilder(gv1);
 984
 985         account.getGroupStore().updateGroup(gv1);
 986
 987         return sendMessage(messageBuilder, gv1.getMembersIncludingPendingWithout(account.getSelfRecipientId()));
 988     }
 989
 990     private void updateGroupV1Details(
 991             final GroupInfoV1 g, final String name, final Collection<RecipientId> members, final File avatarFile
 992     ) throws IOException {
 993         if (name != null) {
 994             g.name = name;
 995         }
 996
 997         if (members != null) {
 998             final var newMemberAddresses = members.stream()
 999                     .filter(member -> !g.isMember(member))
1000                     .map(this::resolveSignalServiceAddress)
1001                     .collect(Collectors.toList());
1002             final var newE164Members = new HashSet<String>();
1003             for (var member : newMemberAddresses) {
1004                 if (!member.getNumber().isPresent()) {
1005                     continue;
1006                 }
1007                 newE164Members.add(member.getNumber().get());
1008             }
1009
1010             final var registeredUsers = getRegisteredUsers(newE164Members);
1011             if (registeredUsers.size() != newE164Members.size()) {
1012                 // Some of the new members are not registered on Signal
1013                 newE164Members.removeAll(registeredUsers.keySet());
1014                 throw new IOException("Failed to add members "
1015                         + String.join(", ", newE164Members)
1016                         + " to group: Not registered on Signal");
1017             }
1018
1019             g.addMembers(members);
1020         }
1021
1022         if (avatarFile != null) {
1023             avatarStore.storeGroupAvatar(g.getGroupId(),
1024                     outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
1025         }
1026     }
1027
1028     private Pair<Long, List<SendMessageResult>> updateGroupV2(
1029             final GroupInfoV2 group,
1030             final String name,
1031             final String description,
1032             final Set<RecipientId> members,
1033             final Set<RecipientId> removeMembers,
1034             final Set<RecipientId> admins,
1035             final Set<RecipientId> removeAdmins,
1036             final boolean resetGroupLink,
1037             final GroupLinkState groupLinkState,
1038             final GroupPermission addMemberPermission,
1039             final GroupPermission editDetailsPermission,
1040             final File avatarFile,
1041             Integer expirationTimer
1042     ) throws IOException {
1043         Pair<Long, List<SendMessageResult>> result = null;
1044         if (group.isPendingMember(account.getSelfRecipientId())) {
1045             var groupGroupChangePair = groupV2Helper.acceptInvite(group);
1046             result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1047         }
1048
1049         if (members != null) {
1050             final var newMembers = new HashSet<>(members);
1051             newMembers.removeAll(group.getMembers());
1052             if (newMembers.size() > 0) {
1053                 var groupGroupChangePair = groupV2Helper.addMembers(group, newMembers);
1054                 result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1055             }
1056         }
1057
1058         if (removeMembers != null) {
1059             var existingRemoveMembers = new HashSet<>(removeMembers);
1060             existingRemoveMembers.retainAll(group.getMembers());
1061             existingRemoveMembers.remove(getSelfRecipientId());// self can be removed with sendQuitGroupMessage
1062             if (existingRemoveMembers.size() > 0) {
1063                 var groupGroupChangePair = groupV2Helper.removeMembers(group, existingRemoveMembers);
1064                 result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1065             }
1066
1067             var pendingRemoveMembers = new HashSet<>(removeMembers);
1068             pendingRemoveMembers.retainAll(group.getPendingMembers());
1069             if (pendingRemoveMembers.size() > 0) {
1070                 var groupGroupChangePair = groupV2Helper.revokeInvitedMembers(group, pendingRemoveMembers);
1071                 result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1072             }
1073         }
1074
1075         if (admins != null) {
1076             final var newAdmins = new HashSet<>(admins);
1077             newAdmins.retainAll(group.getMembers());
1078             newAdmins.removeAll(group.getAdminMembers());
1079             if (newAdmins.size() > 0) {
1080                 for (var admin : newAdmins) {
1081                     var groupGroupChangePair = groupV2Helper.setMemberAdmin(group, admin, true);
1082                     result = sendUpdateGroupV2Message(group,
1083                             groupGroupChangePair.first(),
1084                             groupGroupChangePair.second());
1085                 }
1086             }
1087         }
1088
1089         if (removeAdmins != null) {
1090             final var existingRemoveAdmins = new HashSet<>(removeAdmins);
1091             existingRemoveAdmins.retainAll(group.getAdminMembers());
1092             if (existingRemoveAdmins.size() > 0) {
1093                 for (var admin : existingRemoveAdmins) {
1094                     var groupGroupChangePair = groupV2Helper.setMemberAdmin(group, admin, false);
1095                     result = sendUpdateGroupV2Message(group,
1096                             groupGroupChangePair.first(),
1097                             groupGroupChangePair.second());
1098                 }
1099             }
1100         }
1101
1102         if (resetGroupLink) {
1103             var groupGroupChangePair = groupV2Helper.resetGroupLinkPassword(group);
1104             result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1105         }
1106
1107         if (groupLinkState != null) {
1108             var groupGroupChangePair = groupV2Helper.setGroupLinkState(group, groupLinkState);
1109             result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1110         }
1111
1112         if (addMemberPermission != null) {
1113             var groupGroupChangePair = groupV2Helper.setAddMemberPermission(group, addMemberPermission);
1114             result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1115         }
1116
1117         if (editDetailsPermission != null) {
1118             var groupGroupChangePair = groupV2Helper.setEditDetailsPermission(group, editDetailsPermission);
1119             result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1120         }
1121
1122         if (expirationTimer != null) {
1123             var groupGroupChangePair = groupV2Helper.setMessageExpirationTimer(group, expirationTimer);
1124             result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1125         }
1126
1127         if (name != null || description != null || avatarFile != null) {
1128             var groupGroupChangePair = groupV2Helper.updateGroup(group, name, description, avatarFile);
1129             if (avatarFile != null) {
1130                 avatarStore.storeGroupAvatar(group.getGroupId(),
1131                         outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
1132             }
1133             result = sendUpdateGroupV2Message(group, groupGroupChangePair.first(), groupGroupChangePair.second());
1134         }
1135
1136         return result;
1137     }
1138
1139     public Pair<GroupId, List<SendMessageResult>> joinGroup(
1140             GroupInviteLinkUrl inviteLinkUrl
1141     ) throws IOException, GroupLinkNotActiveException {
1142         final var groupJoinInfo = groupV2Helper.getDecryptedGroupJoinInfo(inviteLinkUrl.getGroupMasterKey(),
1143                 inviteLinkUrl.getPassword());
1144         final var groupChange = groupV2Helper.joinGroup(inviteLinkUrl.getGroupMasterKey(),
1145                 inviteLinkUrl.getPassword(),
1146                 groupJoinInfo);
1147         final var group = getOrMigrateGroup(inviteLinkUrl.getGroupMasterKey(),
1148                 groupJoinInfo.getRevision() + 1,
1149                 groupChange.toByteArray());
1150
1151         if (group.getGroup() == null) {
1152             // Only requested member, can't send update to group members
1153             return new Pair<>(group.getGroupId(), List.of());
1154         }
1155
1156         final var result = sendUpdateGroupV2Message(group, group.getGroup(), groupChange);
1157
1158         return new Pair<>(group.getGroupId(), result.second());
1159     }
1160
1161     private Pair<Long, List<SendMessageResult>> sendUpdateGroupV2Message(
1162             GroupInfoV2 group, DecryptedGroup newDecryptedGroup, GroupChange groupChange
1163     ) throws IOException {
1164         final var selfRecipientId = account.getSelfRecipientId();
1165         final var members = group.getMembersIncludingPendingWithout(selfRecipientId);
1166         group.setGroup(newDecryptedGroup, this::resolveRecipient);
1167         members.addAll(group.getMembersIncludingPendingWithout(selfRecipientId));
1168
1169         final var messageBuilder = getGroupUpdateMessageBuilder(group, groupChange.toByteArray());
1170         account.getGroupStore().updateGroup(group);
1171         return sendMessage(messageBuilder, members);
1172     }
1173
1174     private static int currentTimeDays() {
1175         return (int) TimeUnit.MILLISECONDS.toDays(System.currentTimeMillis());
1176     }
1177
1178     private GroupsV2AuthorizationString getGroupAuthForToday(
1179             final GroupSecretParams groupSecretParams
1180     ) throws IOException {
1181         final var today = currentTimeDays();
1182         // Returns credentials for the next 7 days
1183         final var credentials = groupsV2Api.getCredentials(today);
1184         // TODO cache credentials until they expire
1185         var authCredentialResponse = credentials.get(today);
1186         try {
1187             return groupsV2Api.getGroupsV2AuthorizationString(account.getUuid(),
1188                     today,
1189                     groupSecretParams,
1190                     authCredentialResponse);
1191         } catch (VerificationFailedException e) {
1192             throw new IOException(e);
1193         }
1194     }
1195
1196     Pair<Long, List<SendMessageResult>> sendGroupInfoMessage(
1197             GroupIdV1 groupId, SignalServiceAddress recipient
1198     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, AttachmentInvalidException {
1199         GroupInfoV1 g;
1200         var group = getGroupForSending(groupId);
1201         if (!(group instanceof GroupInfoV1)) {
1202             throw new RuntimeException("Received an invalid group request for a v2 group!");
1203         }
1204         g = (GroupInfoV1) group;
1205
1206         final var recipientId = resolveRecipient(recipient);
1207         if (!g.isMember(recipientId)) {
1208             throw new NotAGroupMemberException(groupId, g.name);
1209         }
1210
1211         var messageBuilder = getGroupUpdateMessageBuilder(g);
1212
1213         // Send group message only to the recipient who requested it
1214         return sendMessage(messageBuilder, Set.of(recipientId));
1215     }
1216
1217     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfoV1 g) throws AttachmentInvalidException {
1218         var group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.UPDATE)
1219                 .withId(g.getGroupId().serialize())
1220                 .withName(g.name)
1221                 .withMembers(g.getMembers()
1222                         .stream()
1223                         .map(this::resolveSignalServiceAddress)
1224                         .collect(Collectors.toList()));
1225
1226         try {
1227             final var attachment = createGroupAvatarAttachment(g.getGroupId());
1228             if (attachment.isPresent()) {
1229                 group.withAvatar(attachment.get());
1230             }
1231         } catch (IOException e) {
1232             throw new AttachmentInvalidException(g.getGroupId().toBase64(), e);
1233         }
1234
1235         return SignalServiceDataMessage.newBuilder()
1236                 .asGroupMessage(group.build())
1237                 .withExpiration(g.getMessageExpirationTime());
1238     }
1239
1240     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfoV2 g, byte[] signedGroupChange) {
1241         var group = SignalServiceGroupV2.newBuilder(g.getMasterKey())
1242                 .withRevision(g.getGroup().getRevision())
1243                 .withSignedGroupChange(signedGroupChange);
1244         return SignalServiceDataMessage.newBuilder()
1245                 .asGroupMessage(group.build())
1246                 .withExpiration(g.getMessageExpirationTime());
1247     }
1248
1249     Pair<Long, List<SendMessageResult>> sendGroupInfoRequest(
1250             GroupIdV1 groupId, SignalServiceAddress recipient
1251     ) throws IOException {
1252         var group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.REQUEST_INFO).withId(groupId.serialize());
1253
1254         var messageBuilder = SignalServiceDataMessage.newBuilder().asGroupMessage(group.build());
1255
1256         // Send group info request message to the recipient who sent us a message with this groupId
1257         return sendMessage(messageBuilder, Set.of(resolveRecipient(recipient)));
1258     }
1259
1260     void sendReceipt(
1261             SignalServiceAddress remoteAddress, long messageId
1262     ) throws IOException, UntrustedIdentityException {
1263         var receiptMessage = new SignalServiceReceiptMessage(SignalServiceReceiptMessage.Type.DELIVERY,
1264                 List.of(messageId),
1265                 System.currentTimeMillis());
1266
1267         createMessageSender().sendReceipt(remoteAddress,
1268                 unidentifiedAccessHelper.getAccessFor(resolveRecipient(remoteAddress)),
1269                 receiptMessage);
1270     }
1271
1272     public Pair<Long, List<SendMessageResult>> sendMessage(
1273             String messageText, List<String> attachments, List<String> recipients
1274     ) throws IOException, AttachmentInvalidException, InvalidNumberException {
1275         final var messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
1276         if (attachments != null) {
1277             var attachmentStreams = AttachmentUtils.getSignalServiceAttachments(attachments);
1278
1279             // Upload attachments here, so we only upload once even for multiple recipients
1280             var messageSender = createMessageSender();
1281             var attachmentPointers = new ArrayList<SignalServiceAttachment>(attachmentStreams.size());
1282             for (var attachment : attachmentStreams) {
1283                 if (attachment.isStream()) {
1284                     attachmentPointers.add(messageSender.uploadAttachment(attachment.asStream()));
1285                 } else if (attachment.isPointer()) {
1286                     attachmentPointers.add(attachment.asPointer());
1287                 }
1288             }
1289
1290             messageBuilder.withAttachments(attachmentPointers);
1291         }
1292         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
1293     }
1294
1295     public Pair<Long, SendMessageResult> sendSelfMessage(
1296             String messageText, List<String> attachments
1297     ) throws IOException, AttachmentInvalidException {
1298         final var messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
1299         if (attachments != null) {
1300             messageBuilder.withAttachments(AttachmentUtils.getSignalServiceAttachments(attachments));
1301         }
1302         return sendSelfMessage(messageBuilder);
1303     }
1304
1305     public Pair<Long, List<SendMessageResult>> sendRemoteDeleteMessage(
1306             long targetSentTimestamp, List<String> recipients
1307     ) throws IOException, InvalidNumberException {
1308         var delete = new SignalServiceDataMessage.RemoteDelete(targetSentTimestamp);
1309         final var messageBuilder = SignalServiceDataMessage.newBuilder().withRemoteDelete(delete);
1310         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
1311     }
1312
1313     public Pair<Long, List<SendMessageResult>> sendGroupRemoteDeleteMessage(
1314             long targetSentTimestamp, GroupId groupId
1315     ) throws IOException, NotAGroupMemberException, GroupNotFoundException {
1316         var delete = new SignalServiceDataMessage.RemoteDelete(targetSentTimestamp);
1317         final var messageBuilder = SignalServiceDataMessage.newBuilder().withRemoteDelete(delete);
1318         return sendGroupMessage(messageBuilder, groupId);
1319     }
1320
1321     public Pair<Long, List<SendMessageResult>> sendMessageReaction(
1322             String emoji, boolean remove, String targetAuthor, long targetSentTimestamp, List<String> recipients
1323     ) throws IOException, InvalidNumberException {
1324         var targetAuthorRecipientId = canonicalizeAndResolveRecipient(targetAuthor);
1325         var reaction = new SignalServiceDataMessage.Reaction(emoji,
1326                 remove,
1327                 resolveSignalServiceAddress(targetAuthorRecipientId),
1328                 targetSentTimestamp);
1329         final var messageBuilder = SignalServiceDataMessage.newBuilder().withReaction(reaction);
1330         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
1331     }
1332
1333     public Pair<Long, List<SendMessageResult>> sendEndSessionMessage(List<String> recipients) throws IOException, InvalidNumberException {
1334         var messageBuilder = SignalServiceDataMessage.newBuilder().asEndSessionMessage();
1335
1336         final var signalServiceAddresses = getSignalServiceAddresses(recipients);
1337         try {
1338             return sendMessage(messageBuilder, signalServiceAddresses);
1339         } catch (Exception e) {
1340             for (var address : signalServiceAddresses) {
1341                 handleEndSession(address);
1342             }
1343             throw e;
1344         }
1345     }
1346
1347     void renewSession(RecipientId recipientId) throws IOException {
1348         account.getSessionStore().archiveSessions(recipientId);
1349         if (!recipientId.equals(getSelfRecipientId())) {
1350             sendNullMessage(recipientId);
1351         }
1352     }
1353
1354     public String getContactName(String number) throws InvalidNumberException {
1355         var contact = account.getContactStore().getContact(canonicalizeAndResolveRecipient(number));
1356         return contact == null || contact.getName() == null ? "" : contact.getName();
1357     }
1358
1359     public void setContactName(String number, String name) throws InvalidNumberException, NotMasterDeviceException {
1360         if (!account.isMasterDevice()) {
1361             throw new NotMasterDeviceException();
1362         }
1363         final var recipientId = canonicalizeAndResolveRecipient(number);
1364         var contact = account.getContactStore().getContact(recipientId);
1365         final var builder = contact == null ? Contact.newBuilder() : Contact.newBuilder(contact);
1366         account.getContactStore().storeContact(recipientId, builder.withName(name).build());
1367     }
1368
1369     public void setContactBlocked(
1370             String number, boolean blocked
1371     ) throws InvalidNumberException, NotMasterDeviceException {
1372         if (!account.isMasterDevice()) {
1373             throw new NotMasterDeviceException();
1374         }
1375         setContactBlocked(canonicalizeAndResolveRecipient(number), blocked);
1376     }
1377
1378     private void setContactBlocked(RecipientId recipientId, boolean blocked) {
1379         var contact = account.getContactStore().getContact(recipientId);
1380         final var builder = contact == null ? Contact.newBuilder() : Contact.newBuilder(contact);
1381         account.getContactStore().storeContact(recipientId, builder.withBlocked(blocked).build());
1382     }
1383
1384     public void setGroupBlocked(final GroupId groupId, final boolean blocked) throws GroupNotFoundException {
1385         var group = getGroup(groupId);
1386         if (group == null) {
1387             throw new GroupNotFoundException(groupId);
1388         }
1389
1390         group.setBlocked(blocked);
1391         account.getGroupStore().updateGroup(group);
1392     }
1393
1394     private void setExpirationTimer(RecipientId recipientId, int messageExpirationTimer) {
1395         var contact = account.getContactStore().getContact(recipientId);
1396         if (contact != null && contact.getMessageExpirationTime() == messageExpirationTimer) {
1397             return;
1398         }
1399         final var builder = contact == null ? Contact.newBuilder() : Contact.newBuilder(contact);
1400         account.getContactStore()
1401                 .storeContact(recipientId, builder.withMessageExpirationTime(messageExpirationTimer).build());
1402     }
1403
1404     private void sendExpirationTimerUpdate(RecipientId recipientId) throws IOException {
1405         final var messageBuilder = SignalServiceDataMessage.newBuilder().asExpirationUpdate();
1406         sendMessage(messageBuilder, Set.of(recipientId));
1407     }
1408
1409     /**
1410      * Change the expiration timer for a contact
1411      */
1412     public void setExpirationTimer(
1413             String number, int messageExpirationTimer
1414     ) throws IOException, InvalidNumberException {
1415         var recipientId = canonicalizeAndResolveRecipient(number);
1416         setExpirationTimer(recipientId, messageExpirationTimer);
1417         sendExpirationTimerUpdate(recipientId);
1418     }
1419
1420     /**
1421      * Change the expiration timer for a group
1422      */
1423     private void setExpirationTimer(
1424             GroupInfoV1 groupInfoV1, int messageExpirationTimer
1425     ) throws NotAGroupMemberException, GroupNotFoundException, IOException {
1426         groupInfoV1.messageExpirationTime = messageExpirationTimer;
1427         account.getGroupStore().updateGroup(groupInfoV1);
1428         sendExpirationTimerUpdate(groupInfoV1.getGroupId());
1429     }
1430
1431     private void sendExpirationTimerUpdate(GroupIdV1 groupId) throws IOException, NotAGroupMemberException, GroupNotFoundException {
1432         final var messageBuilder = SignalServiceDataMessage.newBuilder().asExpirationUpdate();
1433         sendGroupMessage(messageBuilder, groupId);
1434     }
1435
1436     /**
1437      * Upload the sticker pack from path.
1438      *
1439      * @param path Path can be a path to a manifest.json file or to a zip file that contains a manifest.json file
1440      * @return if successful, returns the URL to install the sticker pack in the signal app
1441      */
1442     public String uploadStickerPack(File path) throws IOException, StickerPackInvalidException {
1443         var manifest = StickerUtils.getSignalServiceStickerManifestUpload(path);
1444
1445         var messageSender = createMessageSender();
1446
1447         var packKey = KeyUtils.createStickerUploadKey();
1448         var packIdString = messageSender.uploadStickerManifest(manifest, packKey);
1449         var packId = StickerPackId.deserialize(Hex.fromStringCondensed(packIdString));
1450
1451         var sticker = new Sticker(packId, packKey);
1452         account.getStickerStore().updateSticker(sticker);
1453
1454         try {
1455             return new URI("https",
1456                     "signal.art",
1457                     "/addstickers/",
1458                     "pack_id="
1459                             + URLEncoder.encode(Hex.toStringCondensed(packId.serialize()), StandardCharsets.UTF_8)
1460                             + "&pack_key="
1461                             + URLEncoder.encode(Hex.toStringCondensed(packKey), StandardCharsets.UTF_8)).toString();
1462         } catch (URISyntaxException e) {
1463             throw new AssertionError(e);
1464         }
1465     }
1466
1467     public void requestAllSyncData() throws IOException {
1468         requestSyncGroups();
1469         requestSyncContacts();
1470         requestSyncBlocked();
1471         requestSyncConfiguration();
1472         requestSyncKeys();
1473     }
1474
1475     private void requestSyncGroups() throws IOException {
1476         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1477                 .setType(SignalServiceProtos.SyncMessage.Request.Type.GROUPS)
1478                 .build();
1479         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1480         try {
1481             sendSyncMessage(message);
1482         } catch (UntrustedIdentityException e) {
1483             throw new AssertionError(e);
1484         }
1485     }
1486
1487     private void requestSyncContacts() throws IOException {
1488         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1489                 .setType(SignalServiceProtos.SyncMessage.Request.Type.CONTACTS)
1490                 .build();
1491         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1492         try {
1493             sendSyncMessage(message);
1494         } catch (UntrustedIdentityException e) {
1495             throw new AssertionError(e);
1496         }
1497     }
1498
1499     private void requestSyncBlocked() throws IOException {
1500         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1501                 .setType(SignalServiceProtos.SyncMessage.Request.Type.BLOCKED)
1502                 .build();
1503         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1504         try {
1505             sendSyncMessage(message);
1506         } catch (UntrustedIdentityException e) {
1507             throw new AssertionError(e);
1508         }
1509     }
1510
1511     private void requestSyncConfiguration() throws IOException {
1512         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1513                 .setType(SignalServiceProtos.SyncMessage.Request.Type.CONFIGURATION)
1514                 .build();
1515         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1516         try {
1517             sendSyncMessage(message);
1518         } catch (UntrustedIdentityException e) {
1519             throw new AssertionError(e);
1520         }
1521     }
1522
1523     private void requestSyncKeys() throws IOException {
1524         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1525                 .setType(SignalServiceProtos.SyncMessage.Request.Type.KEYS)
1526                 .build();
1527         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1528         try {
1529             sendSyncMessage(message);
1530         } catch (UntrustedIdentityException e) {
1531             throw new AssertionError(e);
1532         }
1533     }
1534
1535     private byte[] getSenderCertificate() {
1536         byte[] certificate;
1537         try {
1538             if (account.isPhoneNumberShared()) {
1539                 certificate = accountManager.getSenderCertificate();
1540             } else {
1541                 certificate = accountManager.getSenderCertificateForPhoneNumberPrivacy();
1542             }
1543         } catch (IOException e) {
1544             logger.warn("Failed to get sender certificate, ignoring: {}", e.getMessage());
1545             return null;
1546         }
1547         // TODO cache for a day
1548         return certificate;
1549     }
1550
1551     private void sendSyncMessage(SignalServiceSyncMessage message) throws IOException, UntrustedIdentityException {
1552         var messageSender = createMessageSender();
1553         messageSender.sendSyncMessage(message, unidentifiedAccessHelper.getAccessForSync());
1554     }
1555
1556     private Set<RecipientId> getSignalServiceAddresses(Collection<String> numbers) throws InvalidNumberException {
1557         final var signalServiceAddresses = new HashSet<SignalServiceAddress>(numbers.size());
1558         final var addressesMissingUuid = new HashSet<SignalServiceAddress>();
1559
1560         for (var number : numbers) {
1561             final var resolvedAddress = resolveSignalServiceAddress(canonicalizeAndResolveRecipient(number));
1562             if (resolvedAddress.getUuid().isPresent()) {
1563                 signalServiceAddresses.add(resolvedAddress);
1564             } else {
1565                 addressesMissingUuid.add(resolvedAddress);
1566             }
1567         }
1568
1569         final var numbersMissingUuid = addressesMissingUuid.stream()
1570                 .map(a -> a.getNumber().get())
1571                 .collect(Collectors.toSet());
1572         Map<String, UUID> registeredUsers;
1573         try {
1574             registeredUsers = getRegisteredUsers(numbersMissingUuid);
1575         } catch (IOException e) {
1576             logger.warn("Failed to resolve uuids from server, ignoring: {}", e.getMessage());
1577             registeredUsers = Map.of();
1578         }
1579
1580         for (var address : addressesMissingUuid) {
1581             final var number = address.getNumber().get();
1582             if (registeredUsers.containsKey(number)) {
1583                 final var newAddress = resolveSignalServiceAddress(resolveRecipientTrusted(new SignalServiceAddress(
1584                         registeredUsers.get(number),
1585                         number)));
1586                 signalServiceAddresses.add(newAddress);
1587             } else {
1588                 signalServiceAddresses.add(address);
1589             }
1590         }
1591
1592         return signalServiceAddresses.stream().map(this::resolveRecipient).collect(Collectors.toSet());
1593     }
1594
1595     private RecipientId refreshRegisteredUser(RecipientId recipientId) throws IOException {
1596         final var address = resolveSignalServiceAddress(recipientId);
1597         if (!address.getNumber().isPresent()) {
1598             return recipientId;
1599         }
1600         final var number = address.getNumber().get();
1601         final var uuidMap = getRegisteredUsers(Set.of(number));
1602         return resolveRecipientTrusted(new SignalServiceAddress(uuidMap.getOrDefault(number, null), number));
1603     }
1604
1605     private Map<String, UUID> getRegisteredUsers(final Set<String> numbers) throws IOException {
1606         try {
1607             return accountManager.getRegisteredUsers(ServiceConfig.getIasKeyStore(),
1608                     numbers,
1609                     serviceEnvironmentConfig.getCdsMrenclave());
1610         } catch (Quote.InvalidQuoteFormatException | UnauthenticatedQuoteException | SignatureException | UnauthenticatedResponseException | InvalidKeyException e) {
1611             throw new IOException(e);
1612         }
1613     }
1614
1615     public void sendTypingMessage(
1616             TypingAction action, Set<String> recipients
1617     ) throws IOException, UntrustedIdentityException, InvalidNumberException {
1618         sendTypingMessageInternal(action, getSignalServiceAddresses(recipients));
1619     }
1620
1621     private void sendTypingMessageInternal(
1622             TypingAction action, Set<RecipientId> recipientIds
1623     ) throws IOException, UntrustedIdentityException {
1624         final var timestamp = System.currentTimeMillis();
1625         var message = new SignalServiceTypingMessage(action.toSignalService(), timestamp, Optional.absent());
1626         var messageSender = createMessageSender();
1627         for (var recipientId : recipientIds) {
1628             final var address = resolveSignalServiceAddress(recipientId);
1629             messageSender.sendTyping(address, unidentifiedAccessHelper.getAccessFor(recipientId), message);
1630         }
1631     }
1632
1633     public void sendGroupTypingMessage(
1634             TypingAction action, GroupId groupId
1635     ) throws IOException, NotAGroupMemberException, GroupNotFoundException {
1636         final var timestamp = System.currentTimeMillis();
1637         final var g = getGroupForSending(groupId);
1638         final var message = new SignalServiceTypingMessage(action.toSignalService(),
1639                 timestamp,
1640                 Optional.of(groupId.serialize()));
1641         final var messageSender = createMessageSender();
1642         final var recipientIdList = new ArrayList<>(g.getMembersWithout(account.getSelfRecipientId()));
1643         final var addresses = recipientIdList.stream()
1644                 .map(this::resolveSignalServiceAddress)
1645                 .collect(Collectors.toList());
1646         messageSender.sendTyping(addresses, unidentifiedAccessHelper.getAccessFor(recipientIdList), message, null);
1647     }
1648
1649     private Pair<Long, List<SendMessageResult>> sendMessage(
1650             SignalServiceDataMessage.Builder messageBuilder, Set<RecipientId> recipientIds
1651     ) throws IOException {
1652         final var timestamp = System.currentTimeMillis();
1653         messageBuilder.withTimestamp(timestamp);
1654         getOrCreateMessagePipe();
1655         getOrCreateUnidentifiedMessagePipe();
1656         SignalServiceDataMessage message = null;
1657         try {
1658             message = messageBuilder.build();
1659             if (message.getGroupContext().isPresent()) {
1660                 try {
1661                     var messageSender = createMessageSender();
1662                     final var isRecipientUpdate = false;
1663                     final var recipientIdList = new ArrayList<>(recipientIds);
1664                     final var addresses = recipientIdList.stream()
1665                             .map(this::resolveSignalServiceAddress)
1666                             .collect(Collectors.toList());
1667                     var result = messageSender.sendDataMessage(addresses,
1668                             unidentifiedAccessHelper.getAccessFor(recipientIdList),
1669                             isRecipientUpdate,
1670                             ContentHint.DEFAULT,
1671                             message);
1672
1673                     for (var r : result) {
1674                         if (r.getIdentityFailure() != null) {
1675                             final var recipientId = resolveRecipient(r.getAddress());
1676                             final var newIdentity = account.getIdentityKeyStore()
1677                                     .saveIdentity(recipientId, r.getIdentityFailure().getIdentityKey(), new Date());
1678                             if (newIdentity) {
1679                                 account.getSessionStore().archiveSessions(recipientId);
1680                             }
1681                         }
1682                     }
1683
1684                     return new Pair<>(timestamp, result);
1685                 } catch (UntrustedIdentityException e) {
1686                     return new Pair<>(timestamp, List.of());
1687                 }
1688             } else {
1689                 // Send to all individually, so sync messages are sent correctly
1690                 messageBuilder.withProfileKey(account.getProfileKey().serialize());
1691                 var results = new ArrayList<SendMessageResult>(recipientIds.size());
1692                 for (var recipientId : recipientIds) {
1693                     final var contact = account.getContactStore().getContact(recipientId);
1694                     final var expirationTime = contact != null ? contact.getMessageExpirationTime() : 0;
1695                     messageBuilder.withExpiration(expirationTime);
1696                     message = messageBuilder.build();
1697                     results.add(sendMessage(recipientId, message));
1698                 }
1699                 return new Pair<>(timestamp, results);
1700             }
1701         } finally {
1702             if (message != null && message.isEndSession()) {
1703                 for (var recipient : recipientIds) {
1704                     handleEndSession(recipient);
1705                 }
1706             }
1707         }
1708     }
1709
1710     private Pair<Long, SendMessageResult> sendSelfMessage(
1711             SignalServiceDataMessage.Builder messageBuilder
1712     ) throws IOException {
1713         final var timestamp = System.currentTimeMillis();
1714         messageBuilder.withTimestamp(timestamp);
1715         getOrCreateMessagePipe();
1716         getOrCreateUnidentifiedMessagePipe();
1717         final var recipientId = account.getSelfRecipientId();
1718
1719         final var contact = account.getContactStore().getContact(recipientId);
1720         final var expirationTime = contact != null ? contact.getMessageExpirationTime() : 0;
1721         messageBuilder.withExpiration(expirationTime);
1722
1723         var message = messageBuilder.build();
1724         final var result = sendSelfMessage(message);
1725         return new Pair<>(timestamp, result);
1726     }
1727
1728     private SendMessageResult sendSelfMessage(SignalServiceDataMessage message) throws IOException {
1729         var messageSender = createMessageSender();
1730
1731         var recipientId = account.getSelfRecipientId();
1732
1733         final var unidentifiedAccess = unidentifiedAccessHelper.getAccessFor(recipientId);
1734         var recipient = resolveSignalServiceAddress(recipientId);
1735         var transcript = new SentTranscriptMessage(Optional.of(recipient),
1736                 message.getTimestamp(),
1737                 message,
1738                 message.getExpiresInSeconds(),
1739                 Map.of(recipient, unidentifiedAccess.isPresent()),
1740                 false);
1741         var syncMessage = SignalServiceSyncMessage.forSentTranscript(transcript);
1742
1743         try {
1744             var startTime = System.currentTimeMillis();
1745             messageSender.sendSyncMessage(syncMessage, unidentifiedAccess);
1746             return SendMessageResult.success(recipient,
1747                     unidentifiedAccess.isPresent(),
1748                     false,
1749                     System.currentTimeMillis() - startTime);
1750         } catch (UntrustedIdentityException e) {
1751             return SendMessageResult.identityFailure(recipient, e.getIdentityKey());
1752         }
1753     }
1754
1755     private SendMessageResult sendMessage(
1756             RecipientId recipientId, SignalServiceDataMessage message
1757     ) throws IOException {
1758         var messageSender = createMessageSender();
1759
1760         final var address = resolveSignalServiceAddress(recipientId);
1761         try {
1762             try {
1763                 return messageSender.sendDataMessage(address,
1764                         unidentifiedAccessHelper.getAccessFor(recipientId),
1765                         ContentHint.DEFAULT,
1766                         message);
1767             } catch (UnregisteredUserException e) {
1768                 final var newRecipientId = refreshRegisteredUser(recipientId);
1769                 return messageSender.sendDataMessage(resolveSignalServiceAddress(newRecipientId),
1770                         unidentifiedAccessHelper.getAccessFor(newRecipientId),
1771                         ContentHint.DEFAULT,
1772                         message);
1773             }
1774         } catch (UntrustedIdentityException e) {
1775             return SendMessageResult.identityFailure(address, e.getIdentityKey());
1776         }
1777     }
1778
1779     private SendMessageResult sendNullMessage(RecipientId recipientId) throws IOException {
1780         var messageSender = createMessageSender();
1781
1782         final var address = resolveSignalServiceAddress(recipientId);
1783         try {
1784             try {
1785                 return messageSender.sendNullMessage(address, unidentifiedAccessHelper.getAccessFor(recipientId));
1786             } catch (UnregisteredUserException e) {
1787                 final var newRecipientId = refreshRegisteredUser(recipientId);
1788                 final var newAddress = resolveSignalServiceAddress(newRecipientId);
1789                 return messageSender.sendNullMessage(newAddress, unidentifiedAccessHelper.getAccessFor(newRecipientId));
1790             }
1791         } catch (UntrustedIdentityException e) {
1792             return SendMessageResult.identityFailure(address, e.getIdentityKey());
1793         }
1794     }
1795
1796     private SignalServiceContent decryptMessage(SignalServiceEnvelope envelope) throws InvalidMetadataMessageException, ProtocolInvalidMessageException, ProtocolDuplicateMessageException, ProtocolLegacyMessageException, ProtocolInvalidKeyIdException, InvalidMetadataVersionException, ProtocolInvalidVersionException, ProtocolNoSessionException, ProtocolInvalidKeyException, SelfSendException, UnsupportedDataMessageException, ProtocolUntrustedIdentityException {
1797         var cipher = new SignalServiceCipher(account.getSelfAddress(),
1798                 account.getSignalProtocolStore(),
1799                 sessionLock,
1800                 certificateValidator);
1801         return cipher.decrypt(envelope);
1802     }
1803
1804     private void handleEndSession(RecipientId recipientId) {
1805         account.getSessionStore().deleteAllSessions(recipientId);
1806     }
1807
1808     private List<HandleAction> handleSignalServiceDataMessage(
1809             SignalServiceDataMessage message,
1810             boolean isSync,
1811             SignalServiceAddress source,
1812             SignalServiceAddress destination,
1813             boolean ignoreAttachments
1814     ) {
1815         var actions = new ArrayList<HandleAction>();
1816         if (message.getGroupContext().isPresent()) {
1817             if (message.getGroupContext().get().getGroupV1().isPresent()) {
1818                 var groupInfo = message.getGroupContext().get().getGroupV1().get();
1819                 var groupId = GroupId.v1(groupInfo.getGroupId());
1820                 var group = getGroup(groupId);
1821                 if (group == null || group instanceof GroupInfoV1) {
1822                     var groupV1 = (GroupInfoV1) group;
1823                     switch (groupInfo.getType()) {
1824                         case UPDATE: {
1825                             if (groupV1 == null) {
1826                                 groupV1 = new GroupInfoV1(groupId);
1827                             }
1828
1829                             if (groupInfo.getAvatar().isPresent()) {
1830                                 var avatar = groupInfo.getAvatar().get();
1831                                 downloadGroupAvatar(avatar, groupV1.getGroupId());
1832                             }
1833
1834                             if (groupInfo.getName().isPresent()) {
1835                                 groupV1.name = groupInfo.getName().get();
1836                             }
1837
1838                             if (groupInfo.getMembers().isPresent()) {
1839                                 groupV1.addMembers(groupInfo.getMembers()
1840                                         .get()
1841                                         .stream()
1842                                         .map(this::resolveRecipient)
1843                                         .collect(Collectors.toSet()));
1844                             }
1845
1846                             account.getGroupStore().updateGroup(groupV1);
1847                             break;
1848                         }
1849                         case DELIVER:
1850                             if (groupV1 == null && !isSync) {
1851                                 actions.add(new SendGroupInfoRequestAction(source, groupId));
1852                             }
1853                             break;
1854                         case QUIT: {
1855                             if (groupV1 != null) {
1856                                 groupV1.removeMember(resolveRecipient(source));
1857                                 account.getGroupStore().updateGroup(groupV1);
1858                             }
1859                             break;
1860                         }
1861                         case REQUEST_INFO:
1862                             if (groupV1 != null && !isSync) {
1863                                 actions.add(new SendGroupInfoAction(source, groupV1.getGroupId()));
1864                             }
1865                             break;
1866                     }
1867                 } else {
1868                     // Received a group v1 message for a v2 group
1869                 }
1870             }
1871             if (message.getGroupContext().get().getGroupV2().isPresent()) {
1872                 final var groupContext = message.getGroupContext().get().getGroupV2().get();
1873                 final var groupMasterKey = groupContext.getMasterKey();
1874
1875                 getOrMigrateGroup(groupMasterKey,
1876                         groupContext.getRevision(),
1877                         groupContext.hasSignedGroupChange() ? groupContext.getSignedGroupChange() : null);
1878             }
1879         }
1880
1881         final var conversationPartnerAddress = isSync ? destination : source;
1882         if (conversationPartnerAddress != null && message.isEndSession()) {
1883             handleEndSession(resolveRecipient(conversationPartnerAddress));
1884         }
1885         if (message.isExpirationUpdate() || message.getBody().isPresent()) {
1886             if (message.getGroupContext().isPresent()) {
1887                 if (message.getGroupContext().get().getGroupV1().isPresent()) {
1888                     var groupInfo = message.getGroupContext().get().getGroupV1().get();
1889                     var group = account.getGroupStore().getOrCreateGroupV1(GroupId.v1(groupInfo.getGroupId()));
1890                     if (group != null) {
1891                         if (group.messageExpirationTime != message.getExpiresInSeconds()) {
1892                             group.messageExpirationTime = message.getExpiresInSeconds();
1893                             account.getGroupStore().updateGroup(group);
1894                         }
1895                     }
1896                 } else if (message.getGroupContext().get().getGroupV2().isPresent()) {
1897                     // disappearing message timer already stored in the DecryptedGroup
1898                 }
1899             } else if (conversationPartnerAddress != null) {
1900                 setExpirationTimer(resolveRecipient(conversationPartnerAddress), message.getExpiresInSeconds());
1901             }
1902         }
1903         if (!ignoreAttachments) {
1904             if (message.getAttachments().isPresent()) {
1905                 for (var attachment : message.getAttachments().get()) {
1906                     downloadAttachment(attachment);
1907                 }
1908             }
1909             if (message.getSharedContacts().isPresent()) {
1910                 for (var contact : message.getSharedContacts().get()) {
1911                     if (contact.getAvatar().isPresent()) {
1912                         downloadAttachment(contact.getAvatar().get().getAttachment());
1913                     }
1914                 }
1915             }
1916         }
1917         if (message.getProfileKey().isPresent() && message.getProfileKey().get().length == 32) {
1918             final ProfileKey profileKey;
1919             try {
1920                 profileKey = new ProfileKey(message.getProfileKey().get());
1921             } catch (InvalidInputException e) {
1922                 throw new AssertionError(e);
1923             }
1924             if (source.matches(account.getSelfAddress())) {
1925                 this.account.setProfileKey(profileKey);
1926             }
1927             this.account.getProfileStore().storeProfileKey(resolveRecipient(source), profileKey);
1928         }
1929         if (message.getPreviews().isPresent()) {
1930             final var previews = message.getPreviews().get();
1931             for (var preview : previews) {
1932                 if (preview.getImage().isPresent()) {
1933                     downloadAttachment(preview.getImage().get());
1934                 }
1935             }
1936         }
1937         if (message.getQuote().isPresent()) {
1938             final var quote = message.getQuote().get();
1939
1940             for (var quotedAttachment : quote.getAttachments()) {
1941                 final var thumbnail = quotedAttachment.getThumbnail();
1942                 if (thumbnail != null) {
1943                     downloadAttachment(thumbnail);
1944                 }
1945             }
1946         }
1947         if (message.getSticker().isPresent()) {
1948             final var messageSticker = message.getSticker().get();
1949             final var stickerPackId = StickerPackId.deserialize(messageSticker.getPackId());
1950             var sticker = account.getStickerStore().getSticker(stickerPackId);
1951             if (sticker == null) {
1952                 sticker = new Sticker(stickerPackId, messageSticker.getPackKey());
1953                 account.getStickerStore().updateSticker(sticker);
1954             }
1955             enqueueJob(new RetrieveStickerPackJob(stickerPackId, messageSticker.getPackKey()));
1956         }
1957         return actions;
1958     }
1959
1960     private GroupInfoV2 getOrMigrateGroup(
1961             final GroupMasterKey groupMasterKey, final int revision, final byte[] signedGroupChange
1962     ) {
1963         final var groupSecretParams = GroupSecretParams.deriveFromMasterKey(groupMasterKey);
1964
1965         var groupId = GroupUtils.getGroupIdV2(groupSecretParams);
1966         var groupInfo = getGroup(groupId);
1967         final GroupInfoV2 groupInfoV2;
1968         if (groupInfo instanceof GroupInfoV1) {
1969             // Received a v2 group message for a v1 group, we need to locally migrate the group
1970             account.getGroupStore().deleteGroupV1(((GroupInfoV1) groupInfo).getGroupId());
1971             groupInfoV2 = new GroupInfoV2(groupId, groupMasterKey);
1972             logger.info("Locally migrated group {} to group v2, id: {}",
1973                     groupInfo.getGroupId().toBase64(),
1974                     groupInfoV2.getGroupId().toBase64());
1975         } else if (groupInfo instanceof GroupInfoV2) {
1976             groupInfoV2 = (GroupInfoV2) groupInfo;
1977         } else {
1978             groupInfoV2 = new GroupInfoV2(groupId, groupMasterKey);
1979         }
1980
1981         if (groupInfoV2.getGroup() == null || groupInfoV2.getGroup().getRevision() < revision) {
1982             DecryptedGroup group = null;
1983             if (signedGroupChange != null
1984                     && groupInfoV2.getGroup() != null
1985                     && groupInfoV2.getGroup().getRevision() + 1 == revision) {
1986                 group = groupV2Helper.getUpdatedDecryptedGroup(groupInfoV2.getGroup(),
1987                         signedGroupChange,
1988                         groupMasterKey);
1989             }
1990             if (group == null) {
1991                 group = groupV2Helper.getDecryptedGroup(groupSecretParams);
1992             }
1993             if (group != null) {
1994                 storeProfileKeysFromMembers(group);
1995                 final var avatar = group.getAvatar();
1996                 if (avatar != null && !avatar.isEmpty()) {
1997                     downloadGroupAvatar(groupId, groupSecretParams, avatar);
1998                 }
1999             }
2000             groupInfoV2.setGroup(group, this::resolveRecipient);
2001             account.getGroupStore().updateGroup(groupInfoV2);
2002         }
2003
2004         return groupInfoV2;
2005     }
2006
2007     private void storeProfileKeysFromMembers(final DecryptedGroup group) {
2008         for (var member : group.getMembersList()) {
2009             final var uuid = UuidUtil.parseOrThrow(member.getUuid().toByteArray());
2010             final var recipientId = account.getRecipientStore().resolveRecipient(uuid);
2011             try {
2012                 account.getProfileStore()
2013                         .storeProfileKey(recipientId, new ProfileKey(member.getProfileKey().toByteArray()));
2014             } catch (InvalidInputException ignored) {
2015             }
2016         }
2017     }
2018
2019     private void retryFailedReceivedMessages(ReceiveMessageHandler handler, boolean ignoreAttachments) {
2020         Set<HandleAction> queuedActions = new HashSet<>();
2021         for (var cachedMessage : account.getMessageCache().getCachedMessages()) {
2022             var actions = retryFailedReceivedMessage(handler, ignoreAttachments, cachedMessage);
2023             if (actions != null) {
2024                 queuedActions.addAll(actions);
2025             }
2026         }
2027         for (var action : queuedActions) {
2028             try {
2029                 action.execute(this);
2030             } catch (Throwable e) {
2031                 logger.warn("Message action failed.", e);
2032             }
2033         }
2034     }
2035
2036     private List<HandleAction> retryFailedReceivedMessage(
2037             final ReceiveMessageHandler handler, final boolean ignoreAttachments, final CachedMessage cachedMessage
2038     ) {
2039         var envelope = cachedMessage.loadEnvelope();
2040         if (envelope == null) {
2041             return null;
2042         }
2043         SignalServiceContent content = null;
2044         List<HandleAction> actions = null;
2045         if (!envelope.isReceipt()) {
2046             try {
2047                 content = decryptMessage(envelope);
2048             } catch (ProtocolUntrustedIdentityException e) {
2049                 if (!envelope.hasSource()) {
2050                     final var identifier = e.getSender();
2051                     final var recipientId = resolveRecipient(identifier);
2052                     try {
2053                         account.getMessageCache().replaceSender(cachedMessage, recipientId);
2054                     } catch (IOException ioException) {
2055                         logger.warn("Failed to move cached message to recipient folder: {}", ioException.getMessage());
2056                     }
2057                 }
2058                 return null;
2059             } catch (Exception er) {
2060                 // All other errors are not recoverable, so delete the cached message
2061                 cachedMessage.delete();
2062                 return null;
2063             }
2064             actions = handleMessage(envelope, content, ignoreAttachments);
2065         }
2066         handler.handleMessage(envelope, content, null);
2067         cachedMessage.delete();
2068         return actions;
2069     }
2070
2071     public void receiveMessages(
2072             long timeout,
2073             TimeUnit unit,
2074             boolean returnOnTimeout,
2075             boolean ignoreAttachments,
2076             ReceiveMessageHandler handler
2077     ) throws IOException {
2078         retryFailedReceivedMessages(handler, ignoreAttachments);
2079
2080         Set<HandleAction> queuedActions = null;
2081
2082         final var messagePipe = getOrCreateMessagePipe();
2083
2084         var hasCaughtUpWithOldMessages = false;
2085
2086         while (!Thread.interrupted()) {
2087             SignalServiceEnvelope envelope;
2088             SignalServiceContent content = null;
2089             Exception exception = null;
2090             final CachedMessage[] cachedMessage = {null};
2091             account.setLastReceiveTimestamp(System.currentTimeMillis());
2092             logger.debug("Checking for new message from server");
2093             try {
2094                 var result = messagePipe.readOrEmpty(timeout, unit, envelope1 -> {
2095                     final var recipientId = envelope1.hasSource()
2096                             ? resolveRecipient(envelope1.getSourceIdentifier())
2097                             : null;
2098                     // store message on disk, before acknowledging receipt to the server
2099                     cachedMessage[0] = account.getMessageCache().cacheMessage(envelope1, recipientId);
2100                 });
2101                 logger.debug("New message received from server");
2102                 if (result.isPresent()) {
2103                     envelope = result.get();
2104                 } else {
2105                     // Received indicator that server queue is empty
2106                     hasCaughtUpWithOldMessages = true;
2107
2108                     if (queuedActions != null) {
2109                         for (var action : queuedActions) {
2110                             try {
2111                                 action.execute(this);
2112                             } catch (Throwable e) {
2113                                 logger.warn("Message action failed.", e);
2114                             }
2115                         }
2116                         queuedActions.clear();
2117                         queuedActions = null;
2118                     }
2119
2120                     // Continue to wait another timeout for new messages
2121                     continue;
2122                 }
2123             } catch (TimeoutException e) {
2124                 if (returnOnTimeout) return;
2125                 continue;
2126             }
2127
2128             if (envelope.hasSource()) {
2129                 // Store uuid if we don't have it already
2130                 // address/uuid in envelope is sent by server
2131                 resolveRecipientTrusted(envelope.getSourceAddress());
2132             }
2133             final var notAGroupMember = isNotAGroupMember(envelope, content);
2134             if (!envelope.isReceipt()) {
2135                 try {
2136                     content = decryptMessage(envelope);
2137                 } catch (Exception e) {
2138                     exception = e;
2139                 }
2140                 if (!envelope.hasSource() && content != null) {
2141                     // Store uuid if we don't have it already
2142                     // address/uuid is validated by unidentified sender certificate
2143                     resolveRecipientTrusted(content.getSender());
2144                 }
2145                 var actions = handleMessage(envelope, content, ignoreAttachments);
2146                 if (exception instanceof ProtocolInvalidMessageException) {
2147                     final var sender = resolveRecipient(((ProtocolInvalidMessageException) exception).getSender());
2148                     logger.debug("Received invalid message, queuing renew session action.");
2149                     actions.add(new RenewSessionAction(sender));
2150                 }
2151                 if (hasCaughtUpWithOldMessages) {
2152                     for (var action : actions) {
2153                         try {
2154                             action.execute(this);
2155                         } catch (Throwable e) {
2156                             logger.warn("Message action failed.", e);
2157                         }
2158                     }
2159                 } else {
2160                     if (queuedActions == null) {
2161                         queuedActions = new HashSet<>();
2162                     }
2163                     queuedActions.addAll(actions);
2164                 }
2165             }
2166             if (isMessageBlocked(envelope, content)) {
2167                 logger.info("Ignoring a message from blocked user/group: {}", envelope.getTimestamp());
2168             } else if (notAGroupMember) {
2169                 logger.info("Ignoring a message from a non group member: {}", envelope.getTimestamp());
2170             } else {
2171                 handler.handleMessage(envelope, content, exception);
2172             }
2173             if (cachedMessage[0] != null) {
2174                 if (exception instanceof ProtocolUntrustedIdentityException) {
2175                     final var identifier = ((ProtocolUntrustedIdentityException) exception).getSender();
2176                     final var recipientId = resolveRecipient(identifier);
2177                     queuedActions.add(new RetrieveProfileAction(recipientId));
2178                     if (!envelope.hasSource()) {
2179                         try {
2180                             cachedMessage[0] = account.getMessageCache().replaceSender(cachedMessage[0], recipientId);
2181                         } catch (IOException ioException) {
2182                             logger.warn("Failed to move cached message to recipient folder: {}",
2183                                     ioException.getMessage());
2184                         }
2185                     }
2186                 } else {
2187                     cachedMessage[0].delete();
2188                 }
2189             }
2190         }
2191     }
2192
2193     private boolean isMessageBlocked(
2194             SignalServiceEnvelope envelope, SignalServiceContent content
2195     ) {
2196         SignalServiceAddress source;
2197         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
2198             source = envelope.getSourceAddress();
2199         } else if (content != null) {
2200             source = content.getSender();
2201         } else {
2202             return false;
2203         }
2204         final var recipientId = resolveRecipient(source);
2205         if (isContactBlocked(recipientId)) {
2206             return true;
2207         }
2208
2209         if (content != null && content.getDataMessage().isPresent()) {
2210             var message = content.getDataMessage().get();
2211             if (message.getGroupContext().isPresent()) {
2212                 var groupId = GroupUtils.getGroupId(message.getGroupContext().get());
2213                 var group = getGroup(groupId);
2214                 if (group != null && group.isBlocked()) {
2215                     return true;
2216                 }
2217             }
2218         }
2219         return false;
2220     }
2221
2222     public boolean isContactBlocked(final String identifier) throws InvalidNumberException {
2223         final var recipientId = canonicalizeAndResolveRecipient(identifier);
2224         return isContactBlocked(recipientId);
2225     }
2226
2227     private boolean isContactBlocked(final RecipientId recipientId) {
2228         var sourceContact = account.getContactStore().getContact(recipientId);
2229         return sourceContact != null && sourceContact.isBlocked();
2230     }
2231
2232     private boolean isNotAGroupMember(
2233             SignalServiceEnvelope envelope, SignalServiceContent content
2234     ) {
2235         SignalServiceAddress source;
2236         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
2237             source = envelope.getSourceAddress();
2238         } else if (content != null) {
2239             source = content.getSender();
2240         } else {
2241             return false;
2242         }
2243
2244         if (content != null && content.getDataMessage().isPresent()) {
2245             var message = content.getDataMessage().get();
2246             if (message.getGroupContext().isPresent()) {
2247                 if (message.getGroupContext().get().getGroupV1().isPresent()) {
2248                     var groupInfo = message.getGroupContext().get().getGroupV1().get();
2249                     if (groupInfo.getType() == SignalServiceGroup.Type.QUIT) {
2250                         return false;
2251                     }
2252                 }
2253                 var groupId = GroupUtils.getGroupId(message.getGroupContext().get());
2254                 var group = getGroup(groupId);
2255                 if (group != null && !group.isMember(resolveRecipient(source))) {
2256                     return true;
2257                 }
2258             }
2259         }
2260         return false;
2261     }
2262
2263     private List<HandleAction> handleMessage(
2264             SignalServiceEnvelope envelope, SignalServiceContent content, boolean ignoreAttachments
2265     ) {
2266         var actions = new ArrayList<HandleAction>();
2267         if (content != null) {
2268             final SignalServiceAddress sender;
2269             if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
2270                 sender = envelope.getSourceAddress();
2271             } else {
2272                 sender = content.getSender();
2273             }
2274
2275             if (content.getDataMessage().isPresent()) {
2276                 var message = content.getDataMessage().get();
2277
2278                 if (content.isNeedsReceipt()) {
2279                     actions.add(new SendReceiptAction(sender, message.getTimestamp()));
2280                 }
2281
2282                 actions.addAll(handleSignalServiceDataMessage(message,
2283                         false,
2284                         sender,
2285                         account.getSelfAddress(),
2286                         ignoreAttachments));
2287             }
2288             if (content.getSyncMessage().isPresent()) {
2289                 account.setMultiDevice(true);
2290                 var syncMessage = content.getSyncMessage().get();
2291                 if (syncMessage.getSent().isPresent()) {
2292                     var message = syncMessage.getSent().get();
2293                     final var destination = message.getDestination().orNull();
2294                     actions.addAll(handleSignalServiceDataMessage(message.getMessage(),
2295                             true,
2296                             sender,
2297                             destination,
2298                             ignoreAttachments));
2299                 }
2300                 if (syncMessage.getRequest().isPresent() && account.isMasterDevice()) {
2301                     var rm = syncMessage.getRequest().get();
2302                     if (rm.isContactsRequest()) {
2303                         actions.add(SendSyncContactsAction.create());
2304                     }
2305                     if (rm.isGroupsRequest()) {
2306                         actions.add(SendSyncGroupsAction.create());
2307                     }
2308                     if (rm.isBlockedListRequest()) {
2309                         actions.add(SendSyncBlockedListAction.create());
2310                     }
2311                     // TODO Handle rm.isConfigurationRequest(); rm.isKeysRequest();
2312                 }
2313                 if (syncMessage.getGroups().isPresent()) {
2314                     File tmpFile = null;
2315                     try {
2316                         tmpFile = IOUtils.createTempFile();
2317                         final var groupsMessage = syncMessage.getGroups().get();
2318                         try (var attachmentAsStream = retrieveAttachmentAsStream(groupsMessage.asPointer(), tmpFile)) {
2319                             var s = new DeviceGroupsInputStream(attachmentAsStream);
2320                             DeviceGroup g;
2321                             while (true) {
2322                                 try {
2323                                     g = s.read();
2324                                 } catch (IOException e) {
2325                                     logger.warn("Sync groups contained invalid group, ignoring: {}", e.getMessage());
2326                                     continue;
2327                                 }
2328                                 if (g == null) {
2329                                     break;
2330                                 }
2331                                 var syncGroup = account.getGroupStore().getOrCreateGroupV1(GroupId.v1(g.getId()));
2332                                 if (syncGroup != null) {
2333                                     if (g.getName().isPresent()) {
2334                                         syncGroup.name = g.getName().get();
2335                                     }
2336                                     syncGroup.addMembers(g.getMembers()
2337                                             .stream()
2338                                             .map(this::resolveRecipient)
2339                                             .collect(Collectors.toSet()));
2340                                     if (!g.isActive()) {
2341                                         syncGroup.removeMember(account.getSelfRecipientId());
2342                                     } else {
2343                                         // Add ourself to the member set as it's marked as active
2344                                         syncGroup.addMembers(List.of(account.getSelfRecipientId()));
2345                                     }
2346                                     syncGroup.blocked = g.isBlocked();
2347                                     if (g.getColor().isPresent()) {
2348                                         syncGroup.color = g.getColor().get();
2349                                     }
2350
2351                                     if (g.getAvatar().isPresent()) {
2352                                         downloadGroupAvatar(g.getAvatar().get(), syncGroup.getGroupId());
2353                                     }
2354                                     syncGroup.archived = g.isArchived();
2355                                     account.getGroupStore().updateGroup(syncGroup);
2356                                 }
2357                             }
2358                         }
2359                     } catch (Exception e) {
2360                         logger.warn("Failed to handle received sync groups “{}”, ignoring: {}",
2361                                 tmpFile,
2362                                 e.getMessage());
2363                     } finally {
2364                         if (tmpFile != null) {
2365                             try {
2366                                 Files.delete(tmpFile.toPath());
2367                             } catch (IOException e) {
2368                                 logger.warn("Failed to delete received groups temp file “{}”, ignoring: {}",
2369                                         tmpFile,
2370                                         e.getMessage());
2371                             }
2372                         }
2373                     }
2374                 }
2375                 if (syncMessage.getBlockedList().isPresent()) {
2376                     final var blockedListMessage = syncMessage.getBlockedList().get();
2377                     for (var address : blockedListMessage.getAddresses()) {
2378                         setContactBlocked(resolveRecipient(address), true);
2379                     }
2380                     for (var groupId : blockedListMessage.getGroupIds()
2381                             .stream()
2382                             .map(GroupId::unknownVersion)
2383                             .collect(Collectors.toSet())) {
2384                         try {
2385                             setGroupBlocked(groupId, true);
2386                         } catch (GroupNotFoundException e) {
2387                             logger.warn("BlockedListMessage contained groupID that was not found in GroupStore: {}",
2388                                     groupId.toBase64());
2389                         }
2390                     }
2391                 }
2392                 if (syncMessage.getContacts().isPresent()) {
2393                     File tmpFile = null;
2394                     try {
2395                         tmpFile = IOUtils.createTempFile();
2396                         final var contactsMessage = syncMessage.getContacts().get();
2397                         try (var attachmentAsStream = retrieveAttachmentAsStream(contactsMessage.getContactsStream()
2398                                 .asPointer(), tmpFile)) {
2399                             var s = new DeviceContactsInputStream(attachmentAsStream);
2400                             DeviceContact c;
2401                             while (true) {
2402                                 try {
2403                                     c = s.read();
2404                                 } catch (IOException e) {
2405                                     logger.warn("Sync contacts contained invalid contact, ignoring: {}",
2406                                             e.getMessage());
2407                                     continue;
2408                                 }
2409                                 if (c == null) {
2410                                     break;
2411                                 }
2412                                 if (c.getAddress().matches(account.getSelfAddress()) && c.getProfileKey().isPresent()) {
2413                                     account.setProfileKey(c.getProfileKey().get());
2414                                 }
2415                                 final var recipientId = resolveRecipientTrusted(c.getAddress());
2416                                 var contact = account.getContactStore().getContact(recipientId);
2417                                 final var builder = contact == null
2418                                         ? Contact.newBuilder()
2419                                         : Contact.newBuilder(contact);
2420                                 if (c.getName().isPresent()) {
2421                                     builder.withName(c.getName().get());
2422                                 }
2423                                 if (c.getColor().isPresent()) {
2424                                     builder.withColor(c.getColor().get());
2425                                 }
2426                                 if (c.getProfileKey().isPresent()) {
2427                                     account.getProfileStore().storeProfileKey(recipientId, c.getProfileKey().get());
2428                                 }
2429                                 if (c.getVerified().isPresent()) {
2430                                     final var verifiedMessage = c.getVerified().get();
2431                                     account.getIdentityKeyStore()
2432                                             .setIdentityTrustLevel(resolveRecipientTrusted(verifiedMessage.getDestination()),
2433                                                     verifiedMessage.getIdentityKey(),
2434                                                     TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
2435                                 }
2436                                 if (c.getExpirationTimer().isPresent()) {
2437                                     builder.withMessageExpirationTime(c.getExpirationTimer().get());
2438                                 }
2439                                 builder.withBlocked(c.isBlocked());
2440                                 builder.withArchived(c.isArchived());
2441                                 account.getContactStore().storeContact(recipientId, builder.build());
2442
2443                                 if (c.getAvatar().isPresent()) {
2444                                     downloadContactAvatar(c.getAvatar().get(), c.getAddress());
2445                                 }
2446                             }
2447                         }
2448                     } catch (Exception e) {
2449                         logger.warn("Failed to handle received sync contacts “{}”, ignoring: {}",
2450                                 tmpFile,
2451                                 e.getMessage());
2452                     } finally {
2453                         if (tmpFile != null) {
2454                             try {
2455                                 Files.delete(tmpFile.toPath());
2456                             } catch (IOException e) {
2457                                 logger.warn("Failed to delete received contacts temp file “{}”, ignoring: {}",
2458                                         tmpFile,
2459                                         e.getMessage());
2460                             }
2461                         }
2462                     }
2463                 }
2464                 if (syncMessage.getVerified().isPresent()) {
2465                     final var verifiedMessage = syncMessage.getVerified().get();
2466                     account.getIdentityKeyStore()
2467                             .setIdentityTrustLevel(resolveRecipientTrusted(verifiedMessage.getDestination()),
2468                                     verifiedMessage.getIdentityKey(),
2469                                     TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
2470                 }
2471                 if (syncMessage.getStickerPackOperations().isPresent()) {
2472                     final var stickerPackOperationMessages = syncMessage.getStickerPackOperations().get();
2473                     for (var m : stickerPackOperationMessages) {
2474                         if (!m.getPackId().isPresent()) {
2475                             continue;
2476                         }
2477                         final var stickerPackId = StickerPackId.deserialize(m.getPackId().get());
2478                         final var installed = !m.getType().isPresent()
2479                                 || m.getType().get() == StickerPackOperationMessage.Type.INSTALL;
2480
2481                         var sticker = account.getStickerStore().getSticker(stickerPackId);
2482                         if (m.getPackKey().isPresent()) {
2483                             if (sticker == null) {
2484                                 sticker = new Sticker(stickerPackId, m.getPackKey().get());
2485                             }
2486                             if (installed) {
2487                                 enqueueJob(new RetrieveStickerPackJob(stickerPackId, m.getPackKey().get()));
2488                             }
2489                         }
2490
2491                         if (sticker != null) {
2492                             sticker.setInstalled(installed);
2493                             account.getStickerStore().updateSticker(sticker);
2494                         }
2495                     }
2496                 }
2497                 if (syncMessage.getFetchType().isPresent()) {
2498                     switch (syncMessage.getFetchType().get()) {
2499                         case LOCAL_PROFILE:
2500                             getRecipientProfile(account.getSelfRecipientId(), true);
2501                         case STORAGE_MANIFEST:
2502                             // TODO
2503                     }
2504                 }
2505                 if (syncMessage.getKeys().isPresent()) {
2506                     final var keysMessage = syncMessage.getKeys().get();
2507                     if (keysMessage.getStorageService().isPresent()) {
2508                         final var storageKey = keysMessage.getStorageService().get();
2509                         account.setStorageKey(storageKey);
2510                     }
2511                 }
2512                 if (syncMessage.getConfiguration().isPresent()) {
2513                     // TODO
2514                 }
2515             }
2516         }
2517         return actions;
2518     }
2519
2520     private void downloadContactAvatar(SignalServiceAttachment avatar, SignalServiceAddress address) {
2521         try {
2522             avatarStore.storeContactAvatar(address, outputStream -> retrieveAttachment(avatar, outputStream));
2523         } catch (IOException e) {
2524             logger.warn("Failed to download avatar for contact {}, ignoring: {}", address, e.getMessage());
2525         }
2526     }
2527
2528     private void downloadGroupAvatar(SignalServiceAttachment avatar, GroupId groupId) {
2529         try {
2530             avatarStore.storeGroupAvatar(groupId, outputStream -> retrieveAttachment(avatar, outputStream));
2531         } catch (IOException e) {
2532             logger.warn("Failed to download avatar for group {}, ignoring: {}", groupId.toBase64(), e.getMessage());
2533         }
2534     }
2535
2536     private void downloadGroupAvatar(GroupId groupId, GroupSecretParams groupSecretParams, String cdnKey) {
2537         try {
2538             avatarStore.storeGroupAvatar(groupId,
2539                     outputStream -> retrieveGroupV2Avatar(groupSecretParams, cdnKey, outputStream));
2540         } catch (IOException e) {
2541             logger.warn("Failed to download avatar for group {}, ignoring: {}", groupId.toBase64(), e.getMessage());
2542         }
2543     }
2544
2545     private void downloadProfileAvatar(
2546             SignalServiceAddress address, String avatarPath, ProfileKey profileKey
2547     ) {
2548         try {
2549             avatarStore.storeProfileAvatar(address,
2550                     outputStream -> retrieveProfileAvatar(avatarPath, profileKey, outputStream));
2551         } catch (Throwable e) {
2552             logger.warn("Failed to download profile avatar, ignoring: {}", e.getMessage());
2553         }
2554     }
2555
2556     public File getAttachmentFile(SignalServiceAttachmentRemoteId attachmentId) {
2557         return attachmentStore.getAttachmentFile(attachmentId);
2558     }
2559
2560     private void downloadAttachment(final SignalServiceAttachment attachment) {
2561         if (!attachment.isPointer()) {
2562             logger.warn("Invalid state, can't store an attachment stream.");
2563         }
2564
2565         var pointer = attachment.asPointer();
2566         if (pointer.getPreview().isPresent()) {
2567             final var preview = pointer.getPreview().get();
2568             try {
2569                 attachmentStore.storeAttachmentPreview(pointer.getRemoteId(),
2570                         outputStream -> outputStream.write(preview, 0, preview.length));
2571             } catch (IOException e) {
2572                 logger.warn("Failed to download attachment preview, ignoring: {}", e.getMessage());
2573             }
2574         }
2575
2576         try {
2577             attachmentStore.storeAttachment(pointer.getRemoteId(),
2578                     outputStream -> retrieveAttachmentPointer(pointer, outputStream));
2579         } catch (IOException e) {
2580             logger.warn("Failed to download attachment ({}), ignoring: {}", pointer.getRemoteId(), e.getMessage());
2581         }
2582     }
2583
2584     private void retrieveGroupV2Avatar(
2585             GroupSecretParams groupSecretParams, String cdnKey, OutputStream outputStream
2586     ) throws IOException {
2587         var groupOperations = groupsV2Operations.forGroup(groupSecretParams);
2588
2589         var tmpFile = IOUtils.createTempFile();
2590         try (InputStream input = messageReceiver.retrieveGroupsV2ProfileAvatar(cdnKey,
2591                 tmpFile,
2592                 ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
2593             var encryptedData = IOUtils.readFully(input);
2594
2595             var decryptedData = groupOperations.decryptAvatar(encryptedData);
2596             outputStream.write(decryptedData);
2597         } finally {
2598             try {
2599                 Files.delete(tmpFile.toPath());
2600             } catch (IOException e) {
2601                 logger.warn("Failed to delete received group avatar temp file “{}”, ignoring: {}",
2602                         tmpFile,
2603                         e.getMessage());
2604             }
2605         }
2606     }
2607
2608     private void retrieveProfileAvatar(
2609             String avatarPath, ProfileKey profileKey, OutputStream outputStream
2610     ) throws IOException {
2611         var tmpFile = IOUtils.createTempFile();
2612         try (var input = messageReceiver.retrieveProfileAvatar(avatarPath,
2613                 tmpFile,
2614                 profileKey,
2615                 ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
2616             // Use larger buffer size to prevent AssertionError: Need: 12272 but only have: 8192 ...
2617             IOUtils.copyStream(input, outputStream, (int) ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE);
2618         } finally {
2619             try {
2620                 Files.delete(tmpFile.toPath());
2621             } catch (IOException e) {
2622                 logger.warn("Failed to delete received profile avatar temp file “{}”, ignoring: {}",
2623                         tmpFile,
2624                         e.getMessage());
2625             }
2626         }
2627     }
2628
2629     private void retrieveAttachment(
2630             final SignalServiceAttachment attachment, final OutputStream outputStream
2631     ) throws IOException {
2632         if (attachment.isPointer()) {
2633             var pointer = attachment.asPointer();
2634             retrieveAttachmentPointer(pointer, outputStream);
2635         } else {
2636             var stream = attachment.asStream();
2637             IOUtils.copyStream(stream.getInputStream(), outputStream);
2638         }
2639     }
2640
2641     private void retrieveAttachmentPointer(
2642             SignalServiceAttachmentPointer pointer, OutputStream outputStream
2643     ) throws IOException {
2644         var tmpFile = IOUtils.createTempFile();
2645         try (var input = retrieveAttachmentAsStream(pointer, tmpFile)) {
2646             IOUtils.copyStream(input, outputStream);
2647         } catch (MissingConfigurationException | InvalidMessageException e) {
2648             throw new IOException(e);
2649         } finally {
2650             try {
2651                 Files.delete(tmpFile.toPath());
2652             } catch (IOException e) {
2653                 logger.warn("Failed to delete received attachment temp file “{}”, ignoring: {}",
2654                         tmpFile,
2655                         e.getMessage());
2656             }
2657         }
2658     }
2659
2660     private InputStream retrieveAttachmentAsStream(
2661             SignalServiceAttachmentPointer pointer, File tmpFile
2662     ) throws IOException, InvalidMessageException, MissingConfigurationException {
2663         return messageReceiver.retrieveAttachment(pointer, tmpFile, ServiceConfig.MAX_ATTACHMENT_SIZE);
2664     }
2665
2666     void sendGroups() throws IOException, UntrustedIdentityException {
2667         var groupsFile = IOUtils.createTempFile();
2668
2669         try {
2670             try (OutputStream fos = new FileOutputStream(groupsFile)) {
2671                 var out = new DeviceGroupsOutputStream(fos);
2672                 for (var record : getGroups()) {
2673                     if (record instanceof GroupInfoV1) {
2674                         var groupInfo = (GroupInfoV1) record;
2675                         out.write(new DeviceGroup(groupInfo.getGroupId().serialize(),
2676                                 Optional.fromNullable(groupInfo.name),
2677                                 groupInfo.getMembers()
2678                                         .stream()
2679                                         .map(this::resolveSignalServiceAddress)
2680                                         .collect(Collectors.toList()),
2681                                 createGroupAvatarAttachment(groupInfo.getGroupId()),
2682                                 groupInfo.isMember(account.getSelfRecipientId()),
2683                                 Optional.of(groupInfo.messageExpirationTime),
2684                                 Optional.fromNullable(groupInfo.color),
2685                                 groupInfo.blocked,
2686                                 Optional.absent(),
2687                                 groupInfo.archived));
2688                     }
2689                 }
2690             }
2691
2692             if (groupsFile.exists() && groupsFile.length() > 0) {
2693                 try (var groupsFileStream = new FileInputStream(groupsFile)) {
2694                     var attachmentStream = SignalServiceAttachment.newStreamBuilder()
2695                             .withStream(groupsFileStream)
2696                             .withContentType("application/octet-stream")
2697                             .withLength(groupsFile.length())
2698                             .build();
2699
2700                     sendSyncMessage(SignalServiceSyncMessage.forGroups(attachmentStream));
2701                 }
2702             }
2703         } finally {
2704             try {
2705                 Files.delete(groupsFile.toPath());
2706             } catch (IOException e) {
2707                 logger.warn("Failed to delete groups temp file “{}”, ignoring: {}", groupsFile, e.getMessage());
2708             }
2709         }
2710     }
2711
2712     public void sendContacts() throws IOException, UntrustedIdentityException {
2713         var contactsFile = IOUtils.createTempFile();
2714
2715         try {
2716             try (OutputStream fos = new FileOutputStream(contactsFile)) {
2717                 var out = new DeviceContactsOutputStream(fos);
2718                 for (var contactPair : account.getContactStore().getContacts()) {
2719                     final var recipientId = contactPair.first();
2720                     final var contact = contactPair.second();
2721                     final var address = resolveSignalServiceAddress(recipientId);
2722
2723                     var currentIdentity = account.getIdentityKeyStore().getIdentity(recipientId);
2724                     VerifiedMessage verifiedMessage = null;
2725                     if (currentIdentity != null) {
2726                         verifiedMessage = new VerifiedMessage(address,
2727                                 currentIdentity.getIdentityKey(),
2728                                 currentIdentity.getTrustLevel().toVerifiedState(),
2729                                 currentIdentity.getDateAdded().getTime());
2730                     }
2731
2732                     var profileKey = account.getProfileStore().getProfileKey(recipientId);
2733                     out.write(new DeviceContact(address,
2734                             Optional.fromNullable(contact.getName()),
2735                             createContactAvatarAttachment(address),
2736                             Optional.fromNullable(contact.getColor()),
2737                             Optional.fromNullable(verifiedMessage),
2738                             Optional.fromNullable(profileKey),
2739                             contact.isBlocked(),
2740                             Optional.of(contact.getMessageExpirationTime()),
2741                             Optional.absent(),
2742                             contact.isArchived()));
2743                 }
2744
2745                 if (account.getProfileKey() != null) {
2746                     // Send our own profile key as well
2747                     out.write(new DeviceContact(account.getSelfAddress(),
2748                             Optional.absent(),
2749                             Optional.absent(),
2750                             Optional.absent(),
2751                             Optional.absent(),
2752                             Optional.of(account.getProfileKey()),
2753                             false,
2754                             Optional.absent(),
2755                             Optional.absent(),
2756                             false));
2757                 }
2758             }
2759
2760             if (contactsFile.exists() && contactsFile.length() > 0) {
2761                 try (var contactsFileStream = new FileInputStream(contactsFile)) {
2762                     var attachmentStream = SignalServiceAttachment.newStreamBuilder()
2763                             .withStream(contactsFileStream)
2764                             .withContentType("application/octet-stream")
2765                             .withLength(contactsFile.length())
2766                             .build();
2767
2768                     sendSyncMessage(SignalServiceSyncMessage.forContacts(new ContactsMessage(attachmentStream, true)));
2769                 }
2770             }
2771         } finally {
2772             try {
2773                 Files.delete(contactsFile.toPath());
2774             } catch (IOException e) {
2775                 logger.warn("Failed to delete contacts temp file “{}”, ignoring: {}", contactsFile, e.getMessage());
2776             }
2777         }
2778     }
2779
2780     void sendBlockedList() throws IOException, UntrustedIdentityException {
2781         var addresses = new ArrayList<SignalServiceAddress>();
2782         for (var record : account.getContactStore().getContacts()) {
2783             if (record.second().isBlocked()) {
2784                 addresses.add(resolveSignalServiceAddress(record.first()));
2785             }
2786         }
2787         var groupIds = new ArrayList<byte[]>();
2788         for (var record : getGroups()) {
2789             if (record.isBlocked()) {
2790                 groupIds.add(record.getGroupId().serialize());
2791             }
2792         }
2793         sendSyncMessage(SignalServiceSyncMessage.forBlocked(new BlockedListMessage(addresses, groupIds)));
2794     }
2795
2796     private void sendVerifiedMessage(
2797             SignalServiceAddress destination, IdentityKey identityKey, TrustLevel trustLevel
2798     ) throws IOException, UntrustedIdentityException {
2799         var verifiedMessage = new VerifiedMessage(destination,
2800                 identityKey,
2801                 trustLevel.toVerifiedState(),
2802                 System.currentTimeMillis());
2803         sendSyncMessage(SignalServiceSyncMessage.forVerified(verifiedMessage));
2804     }
2805
2806     public List<Pair<RecipientId, Contact>> getContacts() {
2807         return account.getContactStore().getContacts();
2808     }
2809
2810     public String getContactOrProfileName(String number) throws InvalidNumberException {
2811         final var recipientId = canonicalizeAndResolveRecipient(number);
2812         final var recipient = account.getRecipientStore().getRecipient(recipientId);
2813         if (recipient == null) {
2814             return null;
2815         }
2816
2817         if (recipient.getContact() != null && !Util.isEmpty(recipient.getContact().getName())) {
2818             return recipient.getContact().getName();
2819         }
2820
2821         if (recipient.getProfile() != null && recipient.getProfile() != null) {
2822             return recipient.getProfile().getDisplayName();
2823         }
2824
2825         return null;
2826     }
2827
2828     public GroupInfo getGroup(GroupId groupId) {
2829         return getGroup(groupId, false);
2830     }
2831
2832     public GroupInfo getGroup(GroupId groupId, boolean forceUpdate) {
2833         final var group = account.getGroupStore().getGroup(groupId);
2834         if (group instanceof GroupInfoV2 && (forceUpdate || ((GroupInfoV2) group).getGroup() == null)) {
2835             final var groupSecretParams = GroupSecretParams.deriveFromMasterKey(((GroupInfoV2) group).getMasterKey());
2836             ((GroupInfoV2) group).setGroup(groupV2Helper.getDecryptedGroup(groupSecretParams), this::resolveRecipient);
2837             account.getGroupStore().updateGroup(group);
2838         }
2839         return group;
2840     }
2841
2842     public List<IdentityInfo> getIdentities() {
2843         return account.getIdentityKeyStore().getIdentities();
2844     }
2845
2846     public List<IdentityInfo> getIdentities(String number) throws InvalidNumberException {
2847         final var identity = account.getIdentityKeyStore().getIdentity(canonicalizeAndResolveRecipient(number));
2848         return identity == null ? List.of() : List.of(identity);
2849     }
2850
2851     /**
2852      * Trust this the identity with this fingerprint
2853      *
2854      * @param name        username of the identity
2855      * @param fingerprint Fingerprint
2856      */
2857     public boolean trustIdentityVerified(String name, byte[] fingerprint) throws InvalidNumberException {
2858         var recipientId = canonicalizeAndResolveRecipient(name);
2859         return trustIdentity(recipientId,
2860                 identityKey -> Arrays.equals(identityKey.serialize(), fingerprint),
2861                 TrustLevel.TRUSTED_VERIFIED);
2862     }
2863
2864     /**
2865      * Trust this the identity with this safety number
2866      *
2867      * @param name         username of the identity
2868      * @param safetyNumber Safety number
2869      */
2870     public boolean trustIdentityVerifiedSafetyNumber(String name, String safetyNumber) throws InvalidNumberException {
2871         var recipientId = canonicalizeAndResolveRecipient(name);
2872         var address = account.getRecipientStore().resolveServiceAddress(recipientId);
2873         return trustIdentity(recipientId,
2874                 identityKey -> safetyNumber.equals(computeSafetyNumber(address, identityKey)),
2875                 TrustLevel.TRUSTED_VERIFIED);
2876     }
2877
2878     /**
2879      * Trust all keys of this identity without verification
2880      *
2881      * @param name username of the identity
2882      */
2883     public boolean trustIdentityAllKeys(String name) throws InvalidNumberException {
2884         var recipientId = canonicalizeAndResolveRecipient(name);
2885         return trustIdentity(recipientId, identityKey -> true, TrustLevel.TRUSTED_UNVERIFIED);
2886     }
2887
2888     private boolean trustIdentity(
2889             RecipientId recipientId, Function<IdentityKey, Boolean> verifier, TrustLevel trustLevel
2890     ) {
2891         var identity = account.getIdentityKeyStore().getIdentity(recipientId);
2892         if (identity == null) {
2893             return false;
2894         }
2895
2896         if (!verifier.apply(identity.getIdentityKey())) {
2897             return false;
2898         }
2899
2900         account.getIdentityKeyStore().setIdentityTrustLevel(recipientId, identity.getIdentityKey(), trustLevel);
2901         try {
2902             var address = account.getRecipientStore().resolveServiceAddress(recipientId);
2903             sendVerifiedMessage(address, identity.getIdentityKey(), trustLevel);
2904         } catch (IOException | UntrustedIdentityException e) {
2905             logger.warn("Failed to send verification sync message: {}", e.getMessage());
2906         }
2907
2908         return true;
2909     }
2910
2911     public String computeSafetyNumber(
2912             SignalServiceAddress theirAddress, IdentityKey theirIdentityKey
2913     ) {
2914         return Utils.computeSafetyNumber(ServiceConfig.capabilities.isUuid(),
2915                 account.getSelfAddress(),
2916                 getIdentityKeyPair().getPublicKey(),
2917                 theirAddress,
2918                 theirIdentityKey);
2919     }
2920
2921     @Deprecated
2922     public SignalServiceAddress resolveSignalServiceAddress(String identifier) {
2923         var address = Utils.getSignalServiceAddressFromIdentifier(identifier);
2924
2925         return resolveSignalServiceAddress(address);
2926     }
2927
2928     @Deprecated
2929     public SignalServiceAddress resolveSignalServiceAddress(SignalServiceAddress address) {
2930         if (address.matches(account.getSelfAddress())) {
2931             return account.getSelfAddress();
2932         }
2933
2934         return account.getRecipientStore().resolveServiceAddress(address);
2935     }
2936
2937     public SignalServiceAddress resolveSignalServiceAddress(RecipientId recipientId) {
2938         return account.getRecipientStore().resolveServiceAddress(recipientId);
2939     }
2940
2941     public RecipientId canonicalizeAndResolveRecipient(String identifier) throws InvalidNumberException {
2942         var canonicalizedNumber = UuidUtil.isUuid(identifier)
2943                 ? identifier
2944                 : PhoneNumberFormatter.formatNumber(identifier, account.getUsername());
2945
2946         return resolveRecipient(canonicalizedNumber);
2947     }
2948
2949     private RecipientId resolveRecipient(final String identifier) {
2950         var address = Utils.getSignalServiceAddressFromIdentifier(identifier);
2951
2952         return resolveRecipient(address);
2953     }
2954
2955     public RecipientId resolveRecipient(SignalServiceAddress address) {
2956         return account.getRecipientStore().resolveRecipient(address);
2957     }
2958
2959     private RecipientId resolveRecipientTrusted(SignalServiceAddress address) {
2960         return account.getRecipientStore().resolveRecipientTrusted(address);
2961     }
2962
2963     private void enqueueJob(Job job) {
2964         var context = new Context(account, accountManager, messageReceiver, stickerPackStore);
2965         job.run(context);
2966     }
2967
2968     @Override
2969     public void close() throws IOException {
2970         close(true);
2971     }
2972
2973     void close(boolean closeAccount) throws IOException {
2974         executor.shutdown();
2975
2976         if (messagePipe != null) {
2977             messagePipe.shutdown();
2978             messagePipe = null;
2979         }
2980
2981         if (unidentifiedMessagePipe != null) {
2982             unidentifiedMessagePipe.shutdown();
2983             unidentifiedMessagePipe = null;
2984         }
2985
2986         if (closeAccount && account != null) {
2987             account.close();
2988         }
2989         account = null;
2990     }
2991
2992     public interface ReceiveMessageHandler {
2993
2994         void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent decryptedContent, Throwable e);
2995     }
2996 }