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

   1 /*
   2   Copyright (C) 2015-2021 AsamK and contributors
   3
   4   This program is free software: you can redistribute it and/or modify
   5   it under the terms of the GNU General Public License as published by
   6   the Free Software Foundation, either version 3 of the License, or
   7   (at your option) any later version.
   8
   9   This program is distributed in the hope that it will be useful,
  10   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12   GNU General Public License for more details.
  13
  14   You should have received a copy of the GNU General Public License
  15   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17 package org.asamk.signal.manager;
  18
  19 import org.asamk.signal.manager.api.Device;
  20 import org.asamk.signal.manager.config.ServiceConfig;
  21 import org.asamk.signal.manager.config.ServiceEnvironment;
  22 import org.asamk.signal.manager.config.ServiceEnvironmentConfig;
  23 import org.asamk.signal.manager.groups.GroupId;
  24 import org.asamk.signal.manager.groups.GroupIdV1;
  25 import org.asamk.signal.manager.groups.GroupInviteLinkUrl;
  26 import org.asamk.signal.manager.groups.GroupNotFoundException;
  27 import org.asamk.signal.manager.groups.GroupUtils;
  28 import org.asamk.signal.manager.groups.NotAGroupMemberException;
  29 import org.asamk.signal.manager.helper.GroupHelper;
  30 import org.asamk.signal.manager.helper.PinHelper;
  31 import org.asamk.signal.manager.helper.ProfileHelper;
  32 import org.asamk.signal.manager.helper.UnidentifiedAccessHelper;
  33 import org.asamk.signal.manager.storage.SignalAccount;
  34 import org.asamk.signal.manager.storage.groups.GroupInfo;
  35 import org.asamk.signal.manager.storage.groups.GroupInfoV1;
  36 import org.asamk.signal.manager.storage.groups.GroupInfoV2;
  37 import org.asamk.signal.manager.storage.identities.IdentityInfo;
  38 import org.asamk.signal.manager.storage.messageCache.CachedMessage;
  39 import org.asamk.signal.manager.storage.recipients.Contact;
  40 import org.asamk.signal.manager.storage.recipients.Profile;
  41 import org.asamk.signal.manager.storage.recipients.RecipientId;
  42 import org.asamk.signal.manager.storage.stickers.Sticker;
  43 import org.asamk.signal.manager.storage.stickers.StickerPackId;
  44 import org.asamk.signal.manager.util.AttachmentUtils;
  45 import org.asamk.signal.manager.util.IOUtils;
  46 import org.asamk.signal.manager.util.KeyUtils;
  47 import org.asamk.signal.manager.util.ProfileUtils;
  48 import org.asamk.signal.manager.util.StickerUtils;
  49 import org.asamk.signal.manager.util.Utils;
  50 import org.signal.libsignal.metadata.InvalidMetadataMessageException;
  51 import org.signal.libsignal.metadata.InvalidMetadataVersionException;
  52 import org.signal.libsignal.metadata.ProtocolDuplicateMessageException;
  53 import org.signal.libsignal.metadata.ProtocolInvalidKeyException;
  54 import org.signal.libsignal.metadata.ProtocolInvalidKeyIdException;
  55 import org.signal.libsignal.metadata.ProtocolInvalidMessageException;
  56 import org.signal.libsignal.metadata.ProtocolInvalidVersionException;
  57 import org.signal.libsignal.metadata.ProtocolLegacyMessageException;
  58 import org.signal.libsignal.metadata.ProtocolNoSessionException;
  59 import org.signal.libsignal.metadata.ProtocolUntrustedIdentityException;
  60 import org.signal.libsignal.metadata.SelfSendException;
  61 import org.signal.libsignal.metadata.certificate.CertificateValidator;
  62 import org.signal.storageservice.protos.groups.GroupChange;
  63 import org.signal.storageservice.protos.groups.local.DecryptedGroup;
  64 import org.signal.zkgroup.InvalidInputException;
  65 import org.signal.zkgroup.VerificationFailedException;
  66 import org.signal.zkgroup.groups.GroupMasterKey;
  67 import org.signal.zkgroup.groups.GroupSecretParams;
  68 import org.signal.zkgroup.profiles.ClientZkProfileOperations;
  69 import org.signal.zkgroup.profiles.ProfileKey;
  70 import org.signal.zkgroup.profiles.ProfileKeyCredential;
  71 import org.slf4j.Logger;
  72 import org.slf4j.LoggerFactory;
  73 import org.whispersystems.libsignal.IdentityKey;
  74 import org.whispersystems.libsignal.IdentityKeyPair;
  75 import org.whispersystems.libsignal.InvalidKeyException;
  76 import org.whispersystems.libsignal.InvalidMessageException;
  77 import org.whispersystems.libsignal.ecc.ECPublicKey;
  78 import org.whispersystems.libsignal.state.PreKeyRecord;
  79 import org.whispersystems.libsignal.state.SignedPreKeyRecord;
  80 import org.whispersystems.libsignal.util.Pair;
  81 import org.whispersystems.libsignal.util.guava.Optional;
  82 import org.whispersystems.signalservice.api.SignalServiceAccountManager;
  83 import org.whispersystems.signalservice.api.SignalServiceMessagePipe;
  84 import org.whispersystems.signalservice.api.SignalServiceMessageReceiver;
  85 import org.whispersystems.signalservice.api.SignalServiceMessageSender;
  86 import org.whispersystems.signalservice.api.crypto.SignalServiceCipher;
  87 import org.whispersystems.signalservice.api.crypto.UntrustedIdentityException;
  88 import org.whispersystems.signalservice.api.groupsv2.ClientZkOperations;
  89 import org.whispersystems.signalservice.api.groupsv2.GroupLinkNotActiveException;
  90 import org.whispersystems.signalservice.api.groupsv2.GroupsV2Api;
  91 import org.whispersystems.signalservice.api.groupsv2.GroupsV2AuthorizationString;
  92 import org.whispersystems.signalservice.api.groupsv2.GroupsV2Operations;
  93 import org.whispersystems.signalservice.api.messages.SendMessageResult;
  94 import org.whispersystems.signalservice.api.messages.SignalServiceAttachment;
  95 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentPointer;
  96 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentRemoteId;
  97 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentStream;
  98 import org.whispersystems.signalservice.api.messages.SignalServiceContent;
  99 import org.whispersystems.signalservice.api.messages.SignalServiceDataMessage;
 100 import org.whispersystems.signalservice.api.messages.SignalServiceEnvelope;
 101 import org.whispersystems.signalservice.api.messages.SignalServiceGroup;
 102 import org.whispersystems.signalservice.api.messages.SignalServiceGroupV2;
 103 import org.whispersystems.signalservice.api.messages.SignalServiceReceiptMessage;
 104 import org.whispersystems.signalservice.api.messages.multidevice.BlockedListMessage;
 105 import org.whispersystems.signalservice.api.messages.multidevice.ContactsMessage;
 106 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContact;
 107 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsInputStream;
 108 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsOutputStream;
 109 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroup;
 110 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsInputStream;
 111 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsOutputStream;
 112 import org.whispersystems.signalservice.api.messages.multidevice.RequestMessage;
 113 import org.whispersystems.signalservice.api.messages.multidevice.SentTranscriptMessage;
 114 import org.whispersystems.signalservice.api.messages.multidevice.SignalServiceSyncMessage;
 115 import org.whispersystems.signalservice.api.messages.multidevice.StickerPackOperationMessage;
 116 import org.whispersystems.signalservice.api.messages.multidevice.VerifiedMessage;
 117 import org.whispersystems.signalservice.api.profiles.ProfileAndCredential;
 118 import org.whispersystems.signalservice.api.profiles.SignalServiceProfile;
 119 import org.whispersystems.signalservice.api.push.SignalServiceAddress;
 120 import org.whispersystems.signalservice.api.push.exceptions.MissingConfigurationException;
 121 import org.whispersystems.signalservice.api.push.exceptions.UnregisteredUserException;
 122 import org.whispersystems.signalservice.api.util.DeviceNameUtil;
 123 import org.whispersystems.signalservice.api.util.InvalidNumberException;
 124 import org.whispersystems.signalservice.api.util.PhoneNumberFormatter;
 125 import org.whispersystems.signalservice.api.util.SleepTimer;
 126 import org.whispersystems.signalservice.api.util.UptimeSleepTimer;
 127 import org.whispersystems.signalservice.api.util.UuidUtil;
 128 import org.whispersystems.signalservice.internal.contacts.crypto.Quote;
 129 import org.whispersystems.signalservice.internal.contacts.crypto.UnauthenticatedQuoteException;
 130 import org.whispersystems.signalservice.internal.contacts.crypto.UnauthenticatedResponseException;
 131 import org.whispersystems.signalservice.internal.push.SignalServiceProtos;
 132 import org.whispersystems.signalservice.internal.push.UnsupportedDataMessageException;
 133 import org.whispersystems.signalservice.internal.util.DynamicCredentialsProvider;
 134 import org.whispersystems.signalservice.internal.util.Hex;
 135 import org.whispersystems.signalservice.internal.util.Util;
 136
 137 import java.io.Closeable;
 138 import java.io.File;
 139 import java.io.FileInputStream;
 140 import java.io.FileOutputStream;
 141 import java.io.IOException;
 142 import java.io.InputStream;
 143 import java.io.OutputStream;
 144 import java.net.URI;
 145 import java.net.URISyntaxException;
 146 import java.net.URLEncoder;
 147 import java.nio.charset.StandardCharsets;
 148 import java.nio.file.Files;
 149 import java.security.SignatureException;
 150 import java.util.ArrayList;
 151 import java.util.Arrays;
 152 import java.util.Base64;
 153 import java.util.Collection;
 154 import java.util.Date;
 155 import java.util.HashSet;
 156 import java.util.List;
 157 import java.util.Map;
 158 import java.util.Set;
 159 import java.util.UUID;
 160 import java.util.concurrent.ExecutorService;
 161 import java.util.concurrent.Executors;
 162 import java.util.concurrent.TimeUnit;
 163 import java.util.concurrent.TimeoutException;
 164 import java.util.function.Function;
 165 import java.util.stream.Collectors;
 166
 167 import static org.asamk.signal.manager.config.ServiceConfig.capabilities;
 168
 169 public class Manager implements Closeable {
 170
 171     private final static Logger logger = LoggerFactory.getLogger(Manager.class);
 172
 173     private final CertificateValidator certificateValidator;
 174
 175     private final ServiceEnvironmentConfig serviceEnvironmentConfig;
 176     private final String userAgent;
 177
 178     private SignalAccount account;
 179     private final SignalServiceAccountManager accountManager;
 180     private final GroupsV2Api groupsV2Api;
 181     private final GroupsV2Operations groupsV2Operations;
 182     private final SignalServiceMessageReceiver messageReceiver;
 183     private final ClientZkProfileOperations clientZkProfileOperations;
 184
 185     private final ExecutorService executor = Executors.newCachedThreadPool();
 186
 187     private SignalServiceMessagePipe messagePipe = null;
 188     private SignalServiceMessagePipe unidentifiedMessagePipe = null;
 189
 190     private final UnidentifiedAccessHelper unidentifiedAccessHelper;
 191     private final ProfileHelper profileHelper;
 192     private final GroupHelper groupHelper;
 193     private final PinHelper pinHelper;
 194     private final AvatarStore avatarStore;
 195     private final AttachmentStore attachmentStore;
 196
 197     Manager(
 198             SignalAccount account,
 199             PathConfig pathConfig,
 200             ServiceEnvironmentConfig serviceEnvironmentConfig,
 201             String userAgent
 202     ) {
 203         this.account = account;
 204         this.serviceEnvironmentConfig = serviceEnvironmentConfig;
 205         this.certificateValidator = new CertificateValidator(serviceEnvironmentConfig.getUnidentifiedSenderTrustRoot());
 206         this.userAgent = userAgent;
 207         this.groupsV2Operations = capabilities.isGv2() ? new GroupsV2Operations(ClientZkOperations.create(
 208                 serviceEnvironmentConfig.getSignalServiceConfiguration())) : null;
 209         final SleepTimer timer = new UptimeSleepTimer();
 210         this.accountManager = new SignalServiceAccountManager(serviceEnvironmentConfig.getSignalServiceConfiguration(),
 211                 new DynamicCredentialsProvider(account.getUuid(),
 212                         account.getUsername(),
 213                         account.getPassword(),
 214                         account.getDeviceId()),
 215                 userAgent,
 216                 groupsV2Operations,
 217                 ServiceConfig.AUTOMATIC_NETWORK_RETRY,
 218                 timer);
 219         this.groupsV2Api = accountManager.getGroupsV2Api();
 220         final var keyBackupService = accountManager.getKeyBackupService(ServiceConfig.getIasKeyStore(),
 221                 serviceEnvironmentConfig.getKeyBackupConfig().getEnclaveName(),
 222                 serviceEnvironmentConfig.getKeyBackupConfig().getServiceId(),
 223                 serviceEnvironmentConfig.getKeyBackupConfig().getMrenclave(),
 224                 10);
 225
 226         this.pinHelper = new PinHelper(keyBackupService);
 227         this.clientZkProfileOperations = capabilities.isGv2()
 228                 ? ClientZkOperations.create(serviceEnvironmentConfig.getSignalServiceConfiguration())
 229                 .getProfileOperations()
 230                 : null;
 231         this.messageReceiver = new SignalServiceMessageReceiver(serviceEnvironmentConfig.getSignalServiceConfiguration(),
 232                 account.getUuid(),
 233                 account.getUsername(),
 234                 account.getPassword(),
 235                 account.getDeviceId(),
 236                 userAgent,
 237                 null,
 238                 timer,
 239                 clientZkProfileOperations,
 240                 ServiceConfig.AUTOMATIC_NETWORK_RETRY);
 241
 242         this.unidentifiedAccessHelper = new UnidentifiedAccessHelper(account::getProfileKey,
 243                 account.getProfileStore()::getProfileKey,
 244                 this::getRecipientProfile,
 245                 this::getSenderCertificate);
 246         this.profileHelper = new ProfileHelper(account.getProfileStore()::getProfileKey,
 247                 unidentifiedAccessHelper::getAccessFor,
 248                 unidentified -> unidentified ? getOrCreateUnidentifiedMessagePipe() : getOrCreateMessagePipe(),
 249                 () -> messageReceiver,
 250                 this::resolveSignalServiceAddress);
 251         this.groupHelper = new GroupHelper(this::getRecipientProfileKeyCredential,
 252                 this::getRecipientProfile,
 253                 account::getSelfRecipientId,
 254                 groupsV2Operations,
 255                 groupsV2Api,
 256                 this::getGroupAuthForToday,
 257                 this::resolveSignalServiceAddress);
 258         this.avatarStore = new AvatarStore(pathConfig.getAvatarsPath());
 259         this.attachmentStore = new AttachmentStore(pathConfig.getAttachmentsPath());
 260     }
 261
 262     public String getUsername() {
 263         return account.getUsername();
 264     }
 265
 266     public SignalServiceAddress getSelfAddress() {
 267         return account.getSelfAddress();
 268     }
 269
 270     public RecipientId getSelfRecipientId() {
 271         return account.getSelfRecipientId();
 272     }
 273
 274     private IdentityKeyPair getIdentityKeyPair() {
 275         return account.getIdentityKeyPair();
 276     }
 277
 278     public int getDeviceId() {
 279         return account.getDeviceId();
 280     }
 281
 282     public static Manager init(
 283             String username, File settingsPath, ServiceEnvironment serviceEnvironment, String userAgent
 284     ) throws IOException, NotRegisteredException {
 285         var pathConfig = PathConfig.createDefault(settingsPath);
 286
 287         if (!SignalAccount.userExists(pathConfig.getDataPath(), username)) {
 288             throw new NotRegisteredException();
 289         }
 290
 291         var account = SignalAccount.load(pathConfig.getDataPath(), username);
 292
 293         if (!account.isRegistered()) {
 294             throw new NotRegisteredException();
 295         }
 296
 297         final var serviceEnvironmentConfig = ServiceConfig.getServiceEnvironmentConfig(serviceEnvironment, userAgent);
 298
 299         return new Manager(account, pathConfig, serviceEnvironmentConfig, userAgent);
 300     }
 301
 302     public static List<String> getAllLocalUsernames(File settingsPath) {
 303         var pathConfig = PathConfig.createDefault(settingsPath);
 304         final var dataPath = pathConfig.getDataPath();
 305         final var files = dataPath.listFiles();
 306
 307         if (files == null) {
 308             return List.of();
 309         }
 310
 311         return Arrays.stream(files)
 312                 .filter(File::isFile)
 313                 .map(File::getName)
 314                 .filter(file -> PhoneNumberFormatter.isValidNumber(file, null))
 315                 .collect(Collectors.toList());
 316     }
 317
 318     public void checkAccountState() throws IOException {
 319         if (accountManager.getPreKeysCount() < ServiceConfig.PREKEY_MINIMUM_COUNT) {
 320             refreshPreKeys();
 321         }
 322         if (account.getUuid() == null) {
 323             account.setUuid(accountManager.getOwnUuid());
 324         }
 325         updateAccountAttributes();
 326     }
 327
 328     /**
 329      * This is used for checking a set of phone numbers for registration on Signal
 330      *
 331      * @param numbers The set of phone number in question
 332      * @return A map of numbers to booleans. True if registered, false otherwise. Should never be null
 333      * @throws IOException if its unable to get the contacts to check if they're registered
 334      */
 335     public Map<String, Boolean> areUsersRegistered(Set<String> numbers) throws IOException {
 336         // Note "contactDetails" has no optionals. It only gives us info on users who are registered
 337         var contactDetails = getRegisteredUsers(numbers);
 338
 339         var registeredUsers = contactDetails.keySet();
 340
 341         return numbers.stream().collect(Collectors.toMap(x -> x, registeredUsers::contains));
 342     }
 343
 344     public void updateAccountAttributes() throws IOException {
 345         accountManager.setAccountAttributes(account.getEncryptedDeviceName(),
 346                 null,
 347                 account.getLocalRegistrationId(),
 348                 true,
 349                 // set legacy pin only if no KBS master key is set
 350                 account.getPinMasterKey() == null ? account.getRegistrationLockPin() : null,
 351                 account.getPinMasterKey() == null ? null : account.getPinMasterKey().deriveRegistrationLock(),
 352                 account.getSelfUnidentifiedAccessKey(),
 353                 account.isUnrestrictedUnidentifiedAccess(),
 354                 capabilities,
 355                 account.isDiscoverableByPhoneNumber());
 356     }
 357
 358     /**
 359      * @param givenName  if null, the previous givenName will be kept
 360      * @param familyName if null, the previous familyName will be kept
 361      * @param about      if null, the previous about text will be kept
 362      * @param aboutEmoji if null, the previous about emoji will be kept
 363      * @param avatar     if avatar is null the image from the local avatar store is used (if present),
 364      */
 365     public void setProfile(
 366             String givenName, final String familyName, String about, String aboutEmoji, Optional<File> avatar
 367     ) throws IOException {
 368         var profile = getRecipientProfile(account.getSelfRecipientId());
 369         var builder = profile == null ? Profile.newBuilder() : Profile.newBuilder(profile);
 370         if (givenName != null) {
 371             builder.withGivenName(givenName);
 372         }
 373         if (familyName != null) {
 374             builder.withFamilyName(familyName);
 375         }
 376         if (about != null) {
 377             builder.withAbout(about);
 378         }
 379         if (aboutEmoji != null) {
 380             builder.withAboutEmoji(aboutEmoji);
 381         }
 382         var newProfile = builder.build();
 383
 384         try (final var streamDetails = avatar == null
 385                 ? avatarStore.retrieveProfileAvatar(getSelfAddress())
 386                 : avatar.isPresent() ? Utils.createStreamDetailsFromFile(avatar.get()) : null) {
 387             accountManager.setVersionedProfile(account.getUuid(),
 388                     account.getProfileKey(),
 389                     newProfile.getInternalServiceName(),
 390                     newProfile.getAbout() == null ? "" : newProfile.getAbout(),
 391                     newProfile.getAboutEmoji() == null ? "" : newProfile.getAboutEmoji(),
 392                     streamDetails);
 393         }
 394
 395         if (avatar != null) {
 396             if (avatar.isPresent()) {
 397                 avatarStore.storeProfileAvatar(getSelfAddress(),
 398                         outputStream -> IOUtils.copyFileToStream(avatar.get(), outputStream));
 399             } else {
 400                 avatarStore.deleteProfileAvatar(getSelfAddress());
 401             }
 402         }
 403         account.getProfileStore().storeProfile(account.getSelfRecipientId(), newProfile);
 404
 405         try {
 406             sendSyncMessage(SignalServiceSyncMessage.forFetchLatest(SignalServiceSyncMessage.FetchType.LOCAL_PROFILE));
 407         } catch (UntrustedIdentityException ignored) {
 408         }
 409     }
 410
 411     public void unregister() throws IOException {
 412         // When setting an empty GCM id, the Signal-Server also sets the fetchesMessages property to false.
 413         // If this is the master device, other users can't send messages to this number anymore.
 414         // If this is a linked device, other users can still send messages, but this device doesn't receive them anymore.
 415         accountManager.setGcmId(Optional.absent());
 416
 417         account.setRegistered(false);
 418     }
 419
 420     public void deleteAccount() throws IOException {
 421         accountManager.deleteAccount();
 422
 423         account.setRegistered(false);
 424     }
 425
 426     public List<Device> getLinkedDevices() throws IOException {
 427         var devices = accountManager.getDevices();
 428         account.setMultiDevice(devices.size() > 1);
 429         var identityKey = account.getIdentityKeyPair().getPrivateKey();
 430         return devices.stream().map(d -> {
 431             String deviceName = d.getName();
 432             if (deviceName != null) {
 433                 try {
 434                     deviceName = DeviceNameUtil.decryptDeviceName(deviceName, identityKey);
 435                 } catch (IOException e) {
 436                     logger.debug("Failed to decrypt device name, maybe plain text?", e);
 437                 }
 438             }
 439             return new Device(d.getId(), deviceName, d.getCreated(), d.getLastSeen());
 440         }).collect(Collectors.toList());
 441     }
 442
 443     public void removeLinkedDevices(int deviceId) throws IOException {
 444         accountManager.removeDevice(deviceId);
 445         var devices = accountManager.getDevices();
 446         account.setMultiDevice(devices.size() > 1);
 447     }
 448
 449     public void addDeviceLink(URI linkUri) throws IOException, InvalidKeyException {
 450         var info = DeviceLinkInfo.parseDeviceLinkUri(linkUri);
 451
 452         addDevice(info.deviceIdentifier, info.deviceKey);
 453     }
 454
 455     private void addDevice(String deviceIdentifier, ECPublicKey deviceKey) throws IOException, InvalidKeyException {
 456         var identityKeyPair = getIdentityKeyPair();
 457         var verificationCode = accountManager.getNewDeviceVerificationCode();
 458
 459         accountManager.addDevice(deviceIdentifier,
 460                 deviceKey,
 461                 identityKeyPair,
 462                 Optional.of(account.getProfileKey().serialize()),
 463                 verificationCode);
 464         account.setMultiDevice(true);
 465     }
 466
 467     public void setRegistrationLockPin(Optional<String> pin) throws IOException, UnauthenticatedResponseException {
 468         if (!account.isMasterDevice()) {
 469             throw new RuntimeException("Only master device can set a PIN");
 470         }
 471         if (pin.isPresent()) {
 472             final var masterKey = account.getPinMasterKey() != null
 473                     ? account.getPinMasterKey()
 474                     : KeyUtils.createMasterKey();
 475
 476             pinHelper.setRegistrationLockPin(pin.get(), masterKey);
 477
 478             account.setRegistrationLockPin(pin.get(), masterKey);
 479         } else {
 480             // Remove legacy registration lock
 481             accountManager.removeRegistrationLockV1();
 482
 483             // Remove KBS Pin
 484             pinHelper.removeRegistrationLockPin();
 485
 486             account.setRegistrationLockPin(null, null);
 487         }
 488     }
 489
 490     void refreshPreKeys() throws IOException {
 491         var oneTimePreKeys = generatePreKeys();
 492         final var identityKeyPair = getIdentityKeyPair();
 493         var signedPreKeyRecord = generateSignedPreKey(identityKeyPair);
 494
 495         accountManager.setPreKeys(identityKeyPair.getPublicKey(), signedPreKeyRecord, oneTimePreKeys);
 496     }
 497
 498     private List<PreKeyRecord> generatePreKeys() {
 499         final var offset = account.getPreKeyIdOffset();
 500
 501         var records = KeyUtils.generatePreKeyRecords(offset, ServiceConfig.PREKEY_BATCH_SIZE);
 502         account.addPreKeys(records);
 503
 504         return records;
 505     }
 506
 507     private SignedPreKeyRecord generateSignedPreKey(IdentityKeyPair identityKeyPair) {
 508         final var signedPreKeyId = account.getNextSignedPreKeyId();
 509
 510         var record = KeyUtils.generateSignedPreKeyRecord(identityKeyPair, signedPreKeyId);
 511         account.addSignedPreKey(record);
 512
 513         return record;
 514     }
 515
 516     private SignalServiceMessagePipe getOrCreateMessagePipe() {
 517         if (messagePipe == null) {
 518             messagePipe = messageReceiver.createMessagePipe();
 519         }
 520         return messagePipe;
 521     }
 522
 523     private SignalServiceMessagePipe getOrCreateUnidentifiedMessagePipe() {
 524         if (unidentifiedMessagePipe == null) {
 525             unidentifiedMessagePipe = messageReceiver.createUnidentifiedMessagePipe();
 526         }
 527         return unidentifiedMessagePipe;
 528     }
 529
 530     private SignalServiceMessageSender createMessageSender() {
 531         return new SignalServiceMessageSender(serviceEnvironmentConfig.getSignalServiceConfiguration(),
 532                 account.getUuid(),
 533                 account.getUsername(),
 534                 account.getPassword(),
 535                 account.getDeviceId(),
 536                 account.getSignalProtocolStore(),
 537                 userAgent,
 538                 account.isMultiDevice(),
 539                 Optional.fromNullable(messagePipe),
 540                 Optional.fromNullable(unidentifiedMessagePipe),
 541                 Optional.absent(),
 542                 clientZkProfileOperations,
 543                 executor,
 544                 ServiceConfig.MAX_ENVELOPE_SIZE,
 545                 ServiceConfig.AUTOMATIC_NETWORK_RETRY);
 546     }
 547
 548     public Profile getRecipientProfile(
 549             RecipientId recipientId
 550     ) {
 551         return getRecipientProfile(recipientId, false);
 552     }
 553
 554     private final Set<RecipientId> pendingProfileRequest = new HashSet<>();
 555
 556     Profile getRecipientProfile(
 557             RecipientId recipientId, boolean force
 558     ) {
 559         var profileKey = account.getProfileStore().getProfileKey(recipientId);
 560         if (profileKey == null) {
 561             if (force) {
 562                 // retrieve profile to get identity key
 563                 retrieveEncryptedProfile(recipientId);
 564             }
 565             return null;
 566         }
 567         var profile = account.getProfileStore().getProfile(recipientId);
 568
 569         var now = new Date().getTime();
 570         // Profiles are cached for 24h before retrieving them again, unless forced
 571         if (!force && profile != null && now - profile.getLastUpdateTimestamp() < 24 * 60 * 60 * 1000) {
 572             return profile;
 573         }
 574
 575         synchronized (pendingProfileRequest) {
 576             if (pendingProfileRequest.contains(recipientId)) {
 577                 return profile;
 578             }
 579             pendingProfileRequest.add(recipientId);
 580         }
 581         final SignalServiceProfile encryptedProfile;
 582         try {
 583             encryptedProfile = retrieveEncryptedProfile(recipientId);
 584         } finally {
 585             synchronized (pendingProfileRequest) {
 586                 pendingProfileRequest.remove(recipientId);
 587             }
 588         }
 589         if (encryptedProfile == null) {
 590             return null;
 591         }
 592
 593         profile = decryptProfileAndDownloadAvatar(recipientId, profileKey, encryptedProfile);
 594         account.getProfileStore().storeProfile(recipientId, profile);
 595
 596         return profile;
 597     }
 598
 599     private SignalServiceProfile retrieveEncryptedProfile(RecipientId recipientId) {
 600         try {
 601             return retrieveProfileAndCredential(recipientId, SignalServiceProfile.RequestType.PROFILE).getProfile();
 602         } catch (IOException e) {
 603             logger.warn("Failed to retrieve profile, ignoring: {}", e.getMessage());
 604             return null;
 605         }
 606     }
 607
 608     private ProfileAndCredential retrieveProfileAndCredential(
 609             final RecipientId recipientId, final SignalServiceProfile.RequestType requestType
 610     ) throws IOException {
 611         final var profileAndCredential = profileHelper.retrieveProfileSync(recipientId, requestType);
 612         final var profile = profileAndCredential.getProfile();
 613
 614         try {
 615             var newIdentity = account.getIdentityKeyStore()
 616                     .saveIdentity(recipientId,
 617                             new IdentityKey(Base64.getDecoder().decode(profile.getIdentityKey())),
 618                             new Date());
 619
 620             if (newIdentity) {
 621                 account.getSessionStore().archiveSessions(recipientId);
 622             }
 623         } catch (InvalidKeyException ignored) {
 624             logger.warn("Got invalid identity key in profile for {}",
 625                     resolveSignalServiceAddress(recipientId).getLegacyIdentifier());
 626         }
 627         return profileAndCredential;
 628     }
 629
 630     private ProfileKeyCredential getRecipientProfileKeyCredential(RecipientId recipientId) {
 631         var profileKeyCredential = account.getProfileStore().getProfileKeyCredential(recipientId);
 632         if (profileKeyCredential != null) {
 633             return profileKeyCredential;
 634         }
 635
 636         ProfileAndCredential profileAndCredential;
 637         try {
 638             profileAndCredential = retrieveProfileAndCredential(recipientId,
 639                     SignalServiceProfile.RequestType.PROFILE_AND_CREDENTIAL);
 640         } catch (IOException e) {
 641             logger.warn("Failed to retrieve profile key credential, ignoring: {}", e.getMessage());
 642             return null;
 643         }
 644
 645         profileKeyCredential = profileAndCredential.getProfileKeyCredential().orNull();
 646         account.getProfileStore().storeProfileKeyCredential(recipientId, profileKeyCredential);
 647
 648         var profileKey = account.getProfileStore().getProfileKey(recipientId);
 649         if (profileKey != null) {
 650             final var profile = decryptProfileAndDownloadAvatar(recipientId,
 651                     profileKey,
 652                     profileAndCredential.getProfile());
 653             account.getProfileStore().storeProfile(recipientId, profile);
 654         }
 655
 656         return profileKeyCredential;
 657     }
 658
 659     private Profile decryptProfileAndDownloadAvatar(
 660             final RecipientId recipientId, final ProfileKey profileKey, final SignalServiceProfile encryptedProfile
 661     ) {
 662         if (encryptedProfile.getAvatar() != null) {
 663             downloadProfileAvatar(resolveSignalServiceAddress(recipientId), encryptedProfile.getAvatar(), profileKey);
 664         }
 665
 666         return ProfileUtils.decryptProfile(profileKey, encryptedProfile);
 667     }
 668
 669     private Optional<SignalServiceAttachmentStream> createGroupAvatarAttachment(GroupId groupId) throws IOException {
 670         final var streamDetails = avatarStore.retrieveGroupAvatar(groupId);
 671         if (streamDetails == null) {
 672             return Optional.absent();
 673         }
 674
 675         return Optional.of(AttachmentUtils.createAttachment(streamDetails, Optional.absent()));
 676     }
 677
 678     private Optional<SignalServiceAttachmentStream> createContactAvatarAttachment(SignalServiceAddress address) throws IOException {
 679         final var streamDetails = avatarStore.retrieveContactAvatar(address);
 680         if (streamDetails == null) {
 681             return Optional.absent();
 682         }
 683
 684         return Optional.of(AttachmentUtils.createAttachment(streamDetails, Optional.absent()));
 685     }
 686
 687     private GroupInfo getGroupForSending(GroupId groupId) throws GroupNotFoundException, NotAGroupMemberException {
 688         var g = getGroup(groupId);
 689         if (g == null) {
 690             throw new GroupNotFoundException(groupId);
 691         }
 692         if (!g.isMember(account.getSelfRecipientId())) {
 693             throw new NotAGroupMemberException(groupId, g.getTitle());
 694         }
 695         return g;
 696     }
 697
 698     private GroupInfo getGroupForUpdating(GroupId groupId) throws GroupNotFoundException, NotAGroupMemberException {
 699         var g = getGroup(groupId);
 700         if (g == null) {
 701             throw new GroupNotFoundException(groupId);
 702         }
 703         if (!g.isMember(account.getSelfRecipientId()) && !g.isPendingMember(account.getSelfRecipientId())) {
 704             throw new NotAGroupMemberException(groupId, g.getTitle());
 705         }
 706         return g;
 707     }
 708
 709     public List<GroupInfo> getGroups() {
 710         return account.getGroupStore().getGroups();
 711     }
 712
 713     public Pair<Long, List<SendMessageResult>> sendGroupMessage(
 714             String messageText, List<String> attachments, GroupId groupId
 715     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 716         final var messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
 717         if (attachments != null) {
 718             messageBuilder.withAttachments(AttachmentUtils.getSignalServiceAttachments(attachments));
 719         }
 720
 721         return sendGroupMessage(messageBuilder, groupId);
 722     }
 723
 724     public Pair<Long, List<SendMessageResult>> sendGroupMessageReaction(
 725             String emoji, boolean remove, String targetAuthor, long targetSentTimestamp, GroupId groupId
 726     ) throws IOException, InvalidNumberException, NotAGroupMemberException, GroupNotFoundException {
 727         var targetAuthorRecipientId = canonicalizeAndResolveRecipient(targetAuthor);
 728         var reaction = new SignalServiceDataMessage.Reaction(emoji,
 729                 remove,
 730                 resolveSignalServiceAddress(targetAuthorRecipientId),
 731                 targetSentTimestamp);
 732         final var messageBuilder = SignalServiceDataMessage.newBuilder().withReaction(reaction);
 733
 734         return sendGroupMessage(messageBuilder, groupId);
 735     }
 736
 737     public Pair<Long, List<SendMessageResult>> sendGroupMessage(
 738             SignalServiceDataMessage.Builder messageBuilder, GroupId groupId
 739     ) throws IOException, GroupNotFoundException, NotAGroupMemberException {
 740         final var g = getGroupForSending(groupId);
 741
 742         GroupUtils.setGroupContext(messageBuilder, g);
 743         messageBuilder.withExpiration(g.getMessageExpirationTime());
 744
 745         return sendMessage(messageBuilder, g.getMembersWithout(account.getSelfRecipientId()));
 746     }
 747
 748     public Pair<Long, List<SendMessageResult>> sendQuitGroupMessage(GroupId groupId) throws GroupNotFoundException, IOException, NotAGroupMemberException {
 749         SignalServiceDataMessage.Builder messageBuilder;
 750
 751         final var g = getGroupForUpdating(groupId);
 752         if (g instanceof GroupInfoV1) {
 753             var groupInfoV1 = (GroupInfoV1) g;
 754             var group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.QUIT).withId(groupId.serialize()).build();
 755             messageBuilder = SignalServiceDataMessage.newBuilder().asGroupMessage(group);
 756             groupInfoV1.removeMember(account.getSelfRecipientId());
 757             account.getGroupStore().updateGroup(groupInfoV1);
 758         } else {
 759             final var groupInfoV2 = (GroupInfoV2) g;
 760             final var groupGroupChangePair = groupHelper.leaveGroup(groupInfoV2);
 761             groupInfoV2.setGroup(groupGroupChangePair.first(), this::resolveRecipient);
 762             messageBuilder = getGroupUpdateMessageBuilder(groupInfoV2, groupGroupChangePair.second().toByteArray());
 763             account.getGroupStore().updateGroup(groupInfoV2);
 764         }
 765
 766         return sendMessage(messageBuilder, g.getMembersWithout(account.getSelfRecipientId()));
 767     }
 768
 769     public Pair<GroupId, List<SendMessageResult>> updateGroup(
 770             GroupId groupId, String name, List<String> members, File avatarFile
 771     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, InvalidNumberException, NotAGroupMemberException {
 772         return sendUpdateGroupMessage(groupId,
 773                 name,
 774                 members == null ? null : getSignalServiceAddresses(members),
 775                 avatarFile);
 776     }
 777
 778     private Pair<GroupId, List<SendMessageResult>> sendUpdateGroupMessage(
 779             GroupId groupId, String name, Set<RecipientId> members, File avatarFile
 780     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 781         GroupInfo g;
 782         SignalServiceDataMessage.Builder messageBuilder;
 783         if (groupId == null) {
 784             // Create new group
 785             var gv2Pair = groupHelper.createGroupV2(name == null ? "" : name,
 786                     members == null ? Set.of() : members,
 787                     avatarFile);
 788             if (gv2Pair == null) {
 789                 var gv1 = new GroupInfoV1(GroupIdV1.createRandom());
 790                 gv1.addMembers(List.of(account.getSelfRecipientId()));
 791                 updateGroupV1(gv1, name, members, avatarFile);
 792                 messageBuilder = getGroupUpdateMessageBuilder(gv1);
 793                 g = gv1;
 794             } else {
 795                 final var gv2 = gv2Pair.first();
 796                 final var decryptedGroup = gv2Pair.second();
 797
 798                 gv2.setGroup(decryptedGroup, this::resolveRecipient);
 799                 if (avatarFile != null) {
 800                     avatarStore.storeGroupAvatar(gv2.getGroupId(),
 801                             outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
 802                 }
 803                 messageBuilder = getGroupUpdateMessageBuilder(gv2, null);
 804                 g = gv2;
 805             }
 806         } else {
 807             var group = getGroupForUpdating(groupId);
 808             if (group instanceof GroupInfoV2) {
 809                 final var groupInfoV2 = (GroupInfoV2) group;
 810
 811                 Pair<Long, List<SendMessageResult>> result = null;
 812                 if (groupInfoV2.isPendingMember(account.getSelfRecipientId())) {
 813                     var groupGroupChangePair = groupHelper.acceptInvite(groupInfoV2);
 814                     result = sendUpdateGroupMessage(groupInfoV2,
 815                             groupGroupChangePair.first(),
 816                             groupGroupChangePair.second());
 817                 }
 818
 819                 if (members != null) {
 820                     final var newMembers = new HashSet<>(members);
 821                     newMembers.removeAll(group.getMembers());
 822                     if (newMembers.size() > 0) {
 823                         var groupGroupChangePair = groupHelper.updateGroupV2(groupInfoV2, newMembers);
 824                         result = sendUpdateGroupMessage(groupInfoV2,
 825                                 groupGroupChangePair.first(),
 826                                 groupGroupChangePair.second());
 827                     }
 828                 }
 829                 if (result == null || name != null || avatarFile != null) {
 830                     var groupGroupChangePair = groupHelper.updateGroupV2(groupInfoV2, name, avatarFile);
 831                     if (avatarFile != null) {
 832                         avatarStore.storeGroupAvatar(groupInfoV2.getGroupId(),
 833                                 outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
 834                     }
 835                     result = sendUpdateGroupMessage(groupInfoV2,
 836                             groupGroupChangePair.first(),
 837                             groupGroupChangePair.second());
 838                 }
 839
 840                 return new Pair<>(group.getGroupId(), result.second());
 841             } else {
 842                 var gv1 = (GroupInfoV1) group;
 843                 updateGroupV1(gv1, name, members, avatarFile);
 844                 messageBuilder = getGroupUpdateMessageBuilder(gv1);
 845                 g = gv1;
 846             }
 847         }
 848
 849         account.getGroupStore().updateGroup(g);
 850
 851         final var result = sendMessage(messageBuilder,
 852                 g.getMembersIncludingPendingWithout(account.getSelfRecipientId()));
 853         return new Pair<>(g.getGroupId(), result.second());
 854     }
 855
 856     private void updateGroupV1(
 857             final GroupInfoV1 g, final String name, final Collection<RecipientId> members, final File avatarFile
 858     ) throws IOException {
 859         if (name != null) {
 860             g.name = name;
 861         }
 862
 863         if (members != null) {
 864             final var newMemberAddresses = members.stream()
 865                     .filter(member -> !g.isMember(member))
 866                     .map(this::resolveSignalServiceAddress)
 867                     .collect(Collectors.toList());
 868             final var newE164Members = new HashSet<String>();
 869             for (var member : newMemberAddresses) {
 870                 if (!member.getNumber().isPresent()) {
 871                     continue;
 872                 }
 873                 newE164Members.add(member.getNumber().get());
 874             }
 875
 876             final var registeredUsers = getRegisteredUsers(newE164Members);
 877             if (registeredUsers.size() != newE164Members.size()) {
 878                 // Some of the new members are not registered on Signal
 879                 newE164Members.removeAll(registeredUsers.keySet());
 880                 throw new IOException("Failed to add members "
 881                         + String.join(", ", newE164Members)
 882                         + " to group: Not registered on Signal");
 883             }
 884
 885             g.addMembers(members);
 886         }
 887
 888         if (avatarFile != null) {
 889             avatarStore.storeGroupAvatar(g.getGroupId(),
 890                     outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
 891         }
 892     }
 893
 894     public Pair<GroupId, List<SendMessageResult>> joinGroup(
 895             GroupInviteLinkUrl inviteLinkUrl
 896     ) throws IOException, GroupLinkNotActiveException {
 897         return sendJoinGroupMessage(inviteLinkUrl);
 898     }
 899
 900     private Pair<GroupId, List<SendMessageResult>> sendJoinGroupMessage(
 901             GroupInviteLinkUrl inviteLinkUrl
 902     ) throws IOException, GroupLinkNotActiveException {
 903         final var groupJoinInfo = groupHelper.getDecryptedGroupJoinInfo(inviteLinkUrl.getGroupMasterKey(),
 904                 inviteLinkUrl.getPassword());
 905         final var groupChange = groupHelper.joinGroup(inviteLinkUrl.getGroupMasterKey(),
 906                 inviteLinkUrl.getPassword(),
 907                 groupJoinInfo);
 908         final var group = getOrMigrateGroup(inviteLinkUrl.getGroupMasterKey(),
 909                 groupJoinInfo.getRevision() + 1,
 910                 groupChange.toByteArray());
 911
 912         if (group.getGroup() == null) {
 913             // Only requested member, can't send update to group members
 914             return new Pair<>(group.getGroupId(), List.of());
 915         }
 916
 917         final var result = sendUpdateGroupMessage(group, group.getGroup(), groupChange);
 918
 919         return new Pair<>(group.getGroupId(), result.second());
 920     }
 921
 922     private static int currentTimeDays() {
 923         return (int) TimeUnit.MILLISECONDS.toDays(System.currentTimeMillis());
 924     }
 925
 926     private GroupsV2AuthorizationString getGroupAuthForToday(
 927             final GroupSecretParams groupSecretParams
 928     ) throws IOException {
 929         final var today = currentTimeDays();
 930         // Returns credentials for the next 7 days
 931         final var credentials = groupsV2Api.getCredentials(today);
 932         // TODO cache credentials until they expire
 933         var authCredentialResponse = credentials.get(today);
 934         try {
 935             return groupsV2Api.getGroupsV2AuthorizationString(account.getUuid(),
 936                     today,
 937                     groupSecretParams,
 938                     authCredentialResponse);
 939         } catch (VerificationFailedException e) {
 940             throw new IOException(e);
 941         }
 942     }
 943
 944     private Pair<Long, List<SendMessageResult>> sendUpdateGroupMessage(
 945             GroupInfoV2 group, DecryptedGroup newDecryptedGroup, GroupChange groupChange
 946     ) throws IOException {
 947         group.setGroup(newDecryptedGroup, this::resolveRecipient);
 948         final var messageBuilder = getGroupUpdateMessageBuilder(group, groupChange.toByteArray());
 949         account.getGroupStore().updateGroup(group);
 950         return sendMessage(messageBuilder, group.getMembersIncludingPendingWithout(account.getSelfRecipientId()));
 951     }
 952
 953     Pair<Long, List<SendMessageResult>> sendGroupInfoMessage(
 954             GroupIdV1 groupId, SignalServiceAddress recipient
 955     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, AttachmentInvalidException {
 956         GroupInfoV1 g;
 957         var group = getGroupForSending(groupId);
 958         if (!(group instanceof GroupInfoV1)) {
 959             throw new RuntimeException("Received an invalid group request for a v2 group!");
 960         }
 961         g = (GroupInfoV1) group;
 962
 963         final var recipientId = resolveRecipient(recipient);
 964         if (!g.isMember(recipientId)) {
 965             throw new NotAGroupMemberException(groupId, g.name);
 966         }
 967
 968         var messageBuilder = getGroupUpdateMessageBuilder(g);
 969
 970         // Send group message only to the recipient who requested it
 971         return sendMessage(messageBuilder, Set.of(recipientId));
 972     }
 973
 974     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfoV1 g) throws AttachmentInvalidException {
 975         var group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.UPDATE)
 976                 .withId(g.getGroupId().serialize())
 977                 .withName(g.name)
 978                 .withMembers(g.getMembers()
 979                         .stream()
 980                         .map(this::resolveSignalServiceAddress)
 981                         .collect(Collectors.toList()));
 982
 983         try {
 984             final var attachment = createGroupAvatarAttachment(g.getGroupId());
 985             if (attachment.isPresent()) {
 986                 group.withAvatar(attachment.get());
 987             }
 988         } catch (IOException e) {
 989             throw new AttachmentInvalidException(g.getGroupId().toBase64(), e);
 990         }
 991
 992         return SignalServiceDataMessage.newBuilder()
 993                 .asGroupMessage(group.build())
 994                 .withExpiration(g.getMessageExpirationTime());
 995     }
 996
 997     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfoV2 g, byte[] signedGroupChange) {
 998         var group = SignalServiceGroupV2.newBuilder(g.getMasterKey())
 999                 .withRevision(g.getGroup().getRevision())
1000                 .withSignedGroupChange(signedGroupChange);
1001         return SignalServiceDataMessage.newBuilder()
1002                 .asGroupMessage(group.build())
1003                 .withExpiration(g.getMessageExpirationTime());
1004     }
1005
1006     Pair<Long, List<SendMessageResult>> sendGroupInfoRequest(
1007             GroupIdV1 groupId, SignalServiceAddress recipient
1008     ) throws IOException {
1009         var group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.REQUEST_INFO).withId(groupId.serialize());
1010
1011         var messageBuilder = SignalServiceDataMessage.newBuilder().asGroupMessage(group.build());
1012
1013         // Send group info request message to the recipient who sent us a message with this groupId
1014         return sendMessage(messageBuilder, Set.of(resolveRecipient(recipient)));
1015     }
1016
1017     void sendReceipt(
1018             SignalServiceAddress remoteAddress, long messageId
1019     ) throws IOException, UntrustedIdentityException {
1020         var receiptMessage = new SignalServiceReceiptMessage(SignalServiceReceiptMessage.Type.DELIVERY,
1021                 List.of(messageId),
1022                 System.currentTimeMillis());
1023
1024         createMessageSender().sendReceipt(remoteAddress,
1025                 unidentifiedAccessHelper.getAccessFor(resolveRecipient(remoteAddress)),
1026                 receiptMessage);
1027     }
1028
1029     public Pair<Long, List<SendMessageResult>> sendMessage(
1030             String messageText, List<String> attachments, List<String> recipients
1031     ) throws IOException, AttachmentInvalidException, InvalidNumberException {
1032         final var messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
1033         if (attachments != null) {
1034             var attachmentStreams = AttachmentUtils.getSignalServiceAttachments(attachments);
1035
1036             // Upload attachments here, so we only upload once even for multiple recipients
1037             var messageSender = createMessageSender();
1038             var attachmentPointers = new ArrayList<SignalServiceAttachment>(attachmentStreams.size());
1039             for (var attachment : attachmentStreams) {
1040                 if (attachment.isStream()) {
1041                     attachmentPointers.add(messageSender.uploadAttachment(attachment.asStream()));
1042                 } else if (attachment.isPointer()) {
1043                     attachmentPointers.add(attachment.asPointer());
1044                 }
1045             }
1046
1047             messageBuilder.withAttachments(attachmentPointers);
1048         }
1049         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
1050     }
1051
1052     public Pair<Long, SendMessageResult> sendSelfMessage(
1053             String messageText, List<String> attachments
1054     ) throws IOException, AttachmentInvalidException {
1055         final var messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
1056         if (attachments != null) {
1057             messageBuilder.withAttachments(AttachmentUtils.getSignalServiceAttachments(attachments));
1058         }
1059         return sendSelfMessage(messageBuilder);
1060     }
1061
1062     public Pair<Long, List<SendMessageResult>> sendRemoteDeleteMessage(
1063             long targetSentTimestamp, List<String> recipients
1064     ) throws IOException, InvalidNumberException {
1065         var delete = new SignalServiceDataMessage.RemoteDelete(targetSentTimestamp);
1066         final var messageBuilder = SignalServiceDataMessage.newBuilder().withRemoteDelete(delete);
1067         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
1068     }
1069
1070     public Pair<Long, List<SendMessageResult>> sendGroupRemoteDeleteMessage(
1071             long targetSentTimestamp, GroupId groupId
1072     ) throws IOException, NotAGroupMemberException, GroupNotFoundException {
1073         var delete = new SignalServiceDataMessage.RemoteDelete(targetSentTimestamp);
1074         final var messageBuilder = SignalServiceDataMessage.newBuilder().withRemoteDelete(delete);
1075         return sendGroupMessage(messageBuilder, groupId);
1076     }
1077
1078     public Pair<Long, List<SendMessageResult>> sendMessageReaction(
1079             String emoji, boolean remove, String targetAuthor, long targetSentTimestamp, List<String> recipients
1080     ) throws IOException, InvalidNumberException {
1081         var targetAuthorRecipientId = canonicalizeAndResolveRecipient(targetAuthor);
1082         var reaction = new SignalServiceDataMessage.Reaction(emoji,
1083                 remove,
1084                 resolveSignalServiceAddress(targetAuthorRecipientId),
1085                 targetSentTimestamp);
1086         final var messageBuilder = SignalServiceDataMessage.newBuilder().withReaction(reaction);
1087         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
1088     }
1089
1090     public Pair<Long, List<SendMessageResult>> sendEndSessionMessage(List<String> recipients) throws IOException, InvalidNumberException {
1091         var messageBuilder = SignalServiceDataMessage.newBuilder().asEndSessionMessage();
1092
1093         final var signalServiceAddresses = getSignalServiceAddresses(recipients);
1094         try {
1095             return sendMessage(messageBuilder, signalServiceAddresses);
1096         } catch (Exception e) {
1097             for (var address : signalServiceAddresses) {
1098                 handleEndSession(address);
1099             }
1100             throw e;
1101         }
1102     }
1103
1104     SendMessageResult renewSession(RecipientId recipientId) throws IOException {
1105         account.getSessionStore().archiveSessions(recipientId);
1106         return sendNullMessage(recipientId);
1107     }
1108
1109     public String getContactName(String number) throws InvalidNumberException {
1110         var contact = account.getContactStore().getContact(canonicalizeAndResolveRecipient(number));
1111         return contact == null || contact.getName() == null ? "" : contact.getName();
1112     }
1113
1114     public void setContactName(String number, String name) throws InvalidNumberException, NotMasterDeviceException {
1115         if (!account.isMasterDevice()) {
1116             throw new NotMasterDeviceException();
1117         }
1118         final var recipientId = canonicalizeAndResolveRecipient(number);
1119         var contact = account.getContactStore().getContact(recipientId);
1120         final var builder = contact == null ? Contact.newBuilder() : Contact.newBuilder(contact);
1121         account.getContactStore().storeContact(recipientId, builder.withName(name).build());
1122     }
1123
1124     public void setContactBlocked(
1125             String number, boolean blocked
1126     ) throws InvalidNumberException, NotMasterDeviceException {
1127         if (!account.isMasterDevice()) {
1128             throw new NotMasterDeviceException();
1129         }
1130         setContactBlocked(canonicalizeAndResolveRecipient(number), blocked);
1131     }
1132
1133     private void setContactBlocked(RecipientId recipientId, boolean blocked) {
1134         var contact = account.getContactStore().getContact(recipientId);
1135         final var builder = contact == null ? Contact.newBuilder() : Contact.newBuilder(contact);
1136         account.getContactStore().storeContact(recipientId, builder.withBlocked(blocked).build());
1137     }
1138
1139     public void setGroupBlocked(final GroupId groupId, final boolean blocked) throws GroupNotFoundException {
1140         var group = getGroup(groupId);
1141         if (group == null) {
1142             throw new GroupNotFoundException(groupId);
1143         }
1144
1145         group.setBlocked(blocked);
1146         account.getGroupStore().updateGroup(group);
1147     }
1148
1149     private void setExpirationTimer(RecipientId recipientId, int messageExpirationTimer) {
1150         var contact = account.getContactStore().getContact(recipientId);
1151         if (contact != null && contact.getMessageExpirationTime() == messageExpirationTimer) {
1152             return;
1153         }
1154         final var builder = contact == null ? Contact.newBuilder() : Contact.newBuilder(contact);
1155         account.getContactStore()
1156                 .storeContact(recipientId, builder.withMessageExpirationTime(messageExpirationTimer).build());
1157     }
1158
1159     private void sendExpirationTimerUpdate(RecipientId recipientId) throws IOException {
1160         final var messageBuilder = SignalServiceDataMessage.newBuilder().asExpirationUpdate();
1161         sendMessage(messageBuilder, Set.of(recipientId));
1162     }
1163
1164     /**
1165      * Change the expiration timer for a contact
1166      */
1167     public void setExpirationTimer(
1168             String number, int messageExpirationTimer
1169     ) throws IOException, InvalidNumberException {
1170         var recipientId = canonicalizeAndResolveRecipient(number);
1171         setExpirationTimer(recipientId, messageExpirationTimer);
1172         sendExpirationTimerUpdate(recipientId);
1173     }
1174
1175     /**
1176      * Change the expiration timer for a group
1177      */
1178     public void setExpirationTimer(GroupId groupId, int messageExpirationTimer) {
1179         var g = getGroup(groupId);
1180         if (g instanceof GroupInfoV1) {
1181             var groupInfoV1 = (GroupInfoV1) g;
1182             groupInfoV1.messageExpirationTime = messageExpirationTimer;
1183             account.getGroupStore().updateGroup(groupInfoV1);
1184         } else {
1185             throw new RuntimeException("TODO Not implemented!");
1186         }
1187     }
1188
1189     /**
1190      * Upload the sticker pack from path.
1191      *
1192      * @param path Path can be a path to a manifest.json file or to a zip file that contains a manifest.json file
1193      * @return if successful, returns the URL to install the sticker pack in the signal app
1194      */
1195     public String uploadStickerPack(File path) throws IOException, StickerPackInvalidException {
1196         var manifest = StickerUtils.getSignalServiceStickerManifestUpload(path);
1197
1198         var messageSender = createMessageSender();
1199
1200         var packKey = KeyUtils.createStickerUploadKey();
1201         var packId = messageSender.uploadStickerManifest(manifest, packKey);
1202
1203         var sticker = new Sticker(StickerPackId.deserialize(Hex.fromStringCondensed(packId)), packKey);
1204         account.getStickerStore().updateSticker(sticker);
1205
1206         try {
1207             return new URI("https",
1208                     "signal.art",
1209                     "/addstickers/",
1210                     "pack_id=" + URLEncoder.encode(packId, StandardCharsets.UTF_8) + "&pack_key=" + URLEncoder.encode(
1211                             Hex.toStringCondensed(packKey),
1212                             StandardCharsets.UTF_8)).toString();
1213         } catch (URISyntaxException e) {
1214             throw new AssertionError(e);
1215         }
1216     }
1217
1218     public void requestAllSyncData() throws IOException {
1219         requestSyncGroups();
1220         requestSyncContacts();
1221         requestSyncBlocked();
1222         requestSyncConfiguration();
1223         requestSyncKeys();
1224     }
1225
1226     private void requestSyncGroups() throws IOException {
1227         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1228                 .setType(SignalServiceProtos.SyncMessage.Request.Type.GROUPS)
1229                 .build();
1230         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1231         try {
1232             sendSyncMessage(message);
1233         } catch (UntrustedIdentityException e) {
1234             throw new AssertionError(e);
1235         }
1236     }
1237
1238     private void requestSyncContacts() throws IOException {
1239         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1240                 .setType(SignalServiceProtos.SyncMessage.Request.Type.CONTACTS)
1241                 .build();
1242         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1243         try {
1244             sendSyncMessage(message);
1245         } catch (UntrustedIdentityException e) {
1246             throw new AssertionError(e);
1247         }
1248     }
1249
1250     private void requestSyncBlocked() throws IOException {
1251         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1252                 .setType(SignalServiceProtos.SyncMessage.Request.Type.BLOCKED)
1253                 .build();
1254         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1255         try {
1256             sendSyncMessage(message);
1257         } catch (UntrustedIdentityException e) {
1258             throw new AssertionError(e);
1259         }
1260     }
1261
1262     private void requestSyncConfiguration() throws IOException {
1263         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1264                 .setType(SignalServiceProtos.SyncMessage.Request.Type.CONFIGURATION)
1265                 .build();
1266         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1267         try {
1268             sendSyncMessage(message);
1269         } catch (UntrustedIdentityException e) {
1270             throw new AssertionError(e);
1271         }
1272     }
1273
1274     private void requestSyncKeys() throws IOException {
1275         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1276                 .setType(SignalServiceProtos.SyncMessage.Request.Type.KEYS)
1277                 .build();
1278         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1279         try {
1280             sendSyncMessage(message);
1281         } catch (UntrustedIdentityException e) {
1282             throw new AssertionError(e);
1283         }
1284     }
1285
1286     private byte[] getSenderCertificate() {
1287         // TODO support UUID capable sender certificates
1288         // byte[] certificate = accountManager.getSenderCertificateForPhoneNumberPrivacy();
1289         byte[] certificate;
1290         try {
1291             certificate = accountManager.getSenderCertificate();
1292         } catch (IOException e) {
1293             logger.warn("Failed to get sender certificate, ignoring: {}", e.getMessage());
1294             return null;
1295         }
1296         // TODO cache for a day
1297         return certificate;
1298     }
1299
1300     private void sendSyncMessage(SignalServiceSyncMessage message) throws IOException, UntrustedIdentityException {
1301         var messageSender = createMessageSender();
1302         messageSender.sendMessage(message, unidentifiedAccessHelper.getAccessForSync());
1303     }
1304
1305     private Set<RecipientId> getSignalServiceAddresses(Collection<String> numbers) throws InvalidNumberException {
1306         final var signalServiceAddresses = new HashSet<SignalServiceAddress>(numbers.size());
1307         final var addressesMissingUuid = new HashSet<SignalServiceAddress>();
1308
1309         for (var number : numbers) {
1310             final var resolvedAddress = resolveSignalServiceAddress(canonicalizeAndResolveRecipient(number));
1311             if (resolvedAddress.getUuid().isPresent()) {
1312                 signalServiceAddresses.add(resolvedAddress);
1313             } else {
1314                 addressesMissingUuid.add(resolvedAddress);
1315             }
1316         }
1317
1318         final var numbersMissingUuid = addressesMissingUuid.stream()
1319                 .map(a -> a.getNumber().get())
1320                 .collect(Collectors.toSet());
1321         Map<String, UUID> registeredUsers;
1322         try {
1323             registeredUsers = getRegisteredUsers(numbersMissingUuid);
1324         } catch (IOException e) {
1325             logger.warn("Failed to resolve uuids from server, ignoring: {}", e.getMessage());
1326             registeredUsers = Map.of();
1327         }
1328
1329         for (var address : addressesMissingUuid) {
1330             final var number = address.getNumber().get();
1331             if (registeredUsers.containsKey(number)) {
1332                 final var newAddress = resolveSignalServiceAddress(resolveRecipientTrusted(new SignalServiceAddress(
1333                         registeredUsers.get(number),
1334                         number)));
1335                 signalServiceAddresses.add(newAddress);
1336             } else {
1337                 signalServiceAddresses.add(address);
1338             }
1339         }
1340
1341         return signalServiceAddresses.stream().map(this::resolveRecipient).collect(Collectors.toSet());
1342     }
1343
1344     private RecipientId refreshRegisteredUser(RecipientId recipientId) throws IOException {
1345         final var address = resolveSignalServiceAddress(recipientId);
1346         if (!address.getNumber().isPresent()) {
1347             return recipientId;
1348         }
1349         final var number = address.getNumber().get();
1350         final var uuidMap = getRegisteredUsers(Set.of(number));
1351         return resolveRecipientTrusted(new SignalServiceAddress(uuidMap.getOrDefault(number, null), number));
1352     }
1353
1354     private Map<String, UUID> getRegisteredUsers(final Set<String> numbers) throws IOException {
1355         try {
1356             return accountManager.getRegisteredUsers(ServiceConfig.getIasKeyStore(),
1357                     numbers,
1358                     serviceEnvironmentConfig.getCdsMrenclave());
1359         } catch (Quote.InvalidQuoteFormatException | UnauthenticatedQuoteException | SignatureException | UnauthenticatedResponseException | InvalidKeyException e) {
1360             throw new IOException(e);
1361         }
1362     }
1363
1364     private Pair<Long, List<SendMessageResult>> sendMessage(
1365             SignalServiceDataMessage.Builder messageBuilder, Set<RecipientId> recipientIds
1366     ) throws IOException {
1367         final var timestamp = System.currentTimeMillis();
1368         messageBuilder.withTimestamp(timestamp);
1369         getOrCreateMessagePipe();
1370         getOrCreateUnidentifiedMessagePipe();
1371         SignalServiceDataMessage message = null;
1372         try {
1373             message = messageBuilder.build();
1374             if (message.getGroupContext().isPresent()) {
1375                 try {
1376                     var messageSender = createMessageSender();
1377                     final var isRecipientUpdate = false;
1378                     final var recipientIdList = new ArrayList<>(recipientIds);
1379                     final var addresses = recipientIdList.stream()
1380                             .map(this::resolveSignalServiceAddress)
1381                             .collect(Collectors.toList());
1382                     var result = messageSender.sendMessage(addresses,
1383                             unidentifiedAccessHelper.getAccessFor(recipientIdList),
1384                             isRecipientUpdate,
1385                             message);
1386
1387                     for (var r : result) {
1388                         if (r.getIdentityFailure() != null) {
1389                             final var recipientId = resolveRecipient(r.getAddress());
1390                             final var newIdentity = account.getIdentityKeyStore()
1391                                     .saveIdentity(recipientId, r.getIdentityFailure().getIdentityKey(), new Date());
1392                             if (newIdentity) {
1393                                 account.getSessionStore().archiveSessions(recipientId);
1394                             }
1395                         }
1396                     }
1397
1398                     return new Pair<>(timestamp, result);
1399                 } catch (UntrustedIdentityException e) {
1400                     return new Pair<>(timestamp, List.of());
1401                 }
1402             } else {
1403                 // Send to all individually, so sync messages are sent correctly
1404                 messageBuilder.withProfileKey(account.getProfileKey().serialize());
1405                 var results = new ArrayList<SendMessageResult>(recipientIds.size());
1406                 for (var recipientId : recipientIds) {
1407                     final var contact = account.getContactStore().getContact(recipientId);
1408                     final var expirationTime = contact != null ? contact.getMessageExpirationTime() : 0;
1409                     messageBuilder.withExpiration(expirationTime);
1410                     message = messageBuilder.build();
1411                     results.add(sendMessage(recipientId, message));
1412                 }
1413                 return new Pair<>(timestamp, results);
1414             }
1415         } finally {
1416             if (message != null && message.isEndSession()) {
1417                 for (var recipient : recipientIds) {
1418                     handleEndSession(recipient);
1419                 }
1420             }
1421         }
1422     }
1423
1424     private Pair<Long, SendMessageResult> sendSelfMessage(
1425             SignalServiceDataMessage.Builder messageBuilder
1426     ) throws IOException {
1427         final var timestamp = System.currentTimeMillis();
1428         messageBuilder.withTimestamp(timestamp);
1429         getOrCreateMessagePipe();
1430         getOrCreateUnidentifiedMessagePipe();
1431         final var recipientId = account.getSelfRecipientId();
1432
1433         final var contact = account.getContactStore().getContact(recipientId);
1434         final var expirationTime = contact != null ? contact.getMessageExpirationTime() : 0;
1435         messageBuilder.withExpiration(expirationTime);
1436
1437         var message = messageBuilder.build();
1438         final var result = sendSelfMessage(message);
1439         return new Pair<>(timestamp, result);
1440     }
1441
1442     private SendMessageResult sendSelfMessage(SignalServiceDataMessage message) throws IOException {
1443         var messageSender = createMessageSender();
1444
1445         var recipientId = account.getSelfRecipientId();
1446
1447         final var unidentifiedAccess = unidentifiedAccessHelper.getAccessFor(recipientId);
1448         var recipient = resolveSignalServiceAddress(recipientId);
1449         var transcript = new SentTranscriptMessage(Optional.of(recipient),
1450                 message.getTimestamp(),
1451                 message,
1452                 message.getExpiresInSeconds(),
1453                 Map.of(recipient, unidentifiedAccess.isPresent()),
1454                 false);
1455         var syncMessage = SignalServiceSyncMessage.forSentTranscript(transcript);
1456
1457         try {
1458             var startTime = System.currentTimeMillis();
1459             messageSender.sendMessage(syncMessage, unidentifiedAccess);
1460             return SendMessageResult.success(recipient,
1461                     unidentifiedAccess.isPresent(),
1462                     false,
1463                     System.currentTimeMillis() - startTime);
1464         } catch (UntrustedIdentityException e) {
1465             return SendMessageResult.identityFailure(recipient, e.getIdentityKey());
1466         }
1467     }
1468
1469     private SendMessageResult sendMessage(
1470             RecipientId recipientId, SignalServiceDataMessage message
1471     ) throws IOException {
1472         var messageSender = createMessageSender();
1473
1474         final var address = resolveSignalServiceAddress(recipientId);
1475         try {
1476             try {
1477                 return messageSender.sendMessage(address, unidentifiedAccessHelper.getAccessFor(recipientId), message);
1478             } catch (UnregisteredUserException e) {
1479                 final var newRecipientId = refreshRegisteredUser(recipientId);
1480                 return messageSender.sendMessage(resolveSignalServiceAddress(newRecipientId),
1481                         unidentifiedAccessHelper.getAccessFor(newRecipientId),
1482                         message);
1483             }
1484         } catch (UntrustedIdentityException e) {
1485             return SendMessageResult.identityFailure(address, e.getIdentityKey());
1486         }
1487     }
1488
1489     private SendMessageResult sendNullMessage(RecipientId recipientId) throws IOException {
1490         var messageSender = createMessageSender();
1491
1492         final var address = resolveSignalServiceAddress(recipientId);
1493         try {
1494             try {
1495                 return messageSender.sendNullMessage(address, unidentifiedAccessHelper.getAccessFor(recipientId));
1496             } catch (UnregisteredUserException e) {
1497                 final var newRecipientId = refreshRegisteredUser(recipientId);
1498                 final var newAddress = resolveSignalServiceAddress(newRecipientId);
1499                 return messageSender.sendNullMessage(newAddress, unidentifiedAccessHelper.getAccessFor(newRecipientId));
1500             }
1501         } catch (UntrustedIdentityException e) {
1502             return SendMessageResult.identityFailure(address, e.getIdentityKey());
1503         }
1504     }
1505
1506     private SignalServiceContent decryptMessage(SignalServiceEnvelope envelope) throws InvalidMetadataMessageException, ProtocolInvalidMessageException, ProtocolDuplicateMessageException, ProtocolLegacyMessageException, ProtocolInvalidKeyIdException, InvalidMetadataVersionException, ProtocolInvalidVersionException, ProtocolNoSessionException, ProtocolInvalidKeyException, SelfSendException, UnsupportedDataMessageException, org.whispersystems.libsignal.UntrustedIdentityException {
1507         var cipher = new SignalServiceCipher(account.getSelfAddress(),
1508                 account.getSignalProtocolStore(),
1509                 certificateValidator);
1510         try {
1511             return cipher.decrypt(envelope);
1512         } catch (ProtocolUntrustedIdentityException e) {
1513             if (e.getCause() instanceof org.whispersystems.libsignal.UntrustedIdentityException) {
1514                 throw (org.whispersystems.libsignal.UntrustedIdentityException) e.getCause();
1515             }
1516             throw new AssertionError(e);
1517         }
1518     }
1519
1520     private void handleEndSession(RecipientId recipientId) {
1521         account.getSessionStore().deleteAllSessions(recipientId);
1522     }
1523
1524     private List<HandleAction> handleSignalServiceDataMessage(
1525             SignalServiceDataMessage message,
1526             boolean isSync,
1527             SignalServiceAddress source,
1528             SignalServiceAddress destination,
1529             boolean ignoreAttachments
1530     ) {
1531         var actions = new ArrayList<HandleAction>();
1532         if (message.getGroupContext().isPresent()) {
1533             if (message.getGroupContext().get().getGroupV1().isPresent()) {
1534                 var groupInfo = message.getGroupContext().get().getGroupV1().get();
1535                 var groupId = GroupId.v1(groupInfo.getGroupId());
1536                 var group = getGroup(groupId);
1537                 if (group == null || group instanceof GroupInfoV1) {
1538                     var groupV1 = (GroupInfoV1) group;
1539                     switch (groupInfo.getType()) {
1540                         case UPDATE: {
1541                             if (groupV1 == null) {
1542                                 groupV1 = new GroupInfoV1(groupId);
1543                             }
1544
1545                             if (groupInfo.getAvatar().isPresent()) {
1546                                 var avatar = groupInfo.getAvatar().get();
1547                                 downloadGroupAvatar(avatar, groupV1.getGroupId());
1548                             }
1549
1550                             if (groupInfo.getName().isPresent()) {
1551                                 groupV1.name = groupInfo.getName().get();
1552                             }
1553
1554                             if (groupInfo.getMembers().isPresent()) {
1555                                 groupV1.addMembers(groupInfo.getMembers()
1556                                         .get()
1557                                         .stream()
1558                                         .map(this::resolveRecipient)
1559                                         .collect(Collectors.toSet()));
1560                             }
1561
1562                             account.getGroupStore().updateGroup(groupV1);
1563                             break;
1564                         }
1565                         case DELIVER:
1566                             if (groupV1 == null && !isSync) {
1567                                 actions.add(new SendGroupInfoRequestAction(source, groupId));
1568                             }
1569                             break;
1570                         case QUIT: {
1571                             if (groupV1 != null) {
1572                                 groupV1.removeMember(resolveRecipient(source));
1573                                 account.getGroupStore().updateGroup(groupV1);
1574                             }
1575                             break;
1576                         }
1577                         case REQUEST_INFO:
1578                             if (groupV1 != null && !isSync) {
1579                                 actions.add(new SendGroupInfoAction(source, groupV1.getGroupId()));
1580                             }
1581                             break;
1582                     }
1583                 } else {
1584                     // Received a group v1 message for a v2 group
1585                 }
1586             }
1587             if (message.getGroupContext().get().getGroupV2().isPresent()) {
1588                 final var groupContext = message.getGroupContext().get().getGroupV2().get();
1589                 final var groupMasterKey = groupContext.getMasterKey();
1590
1591                 getOrMigrateGroup(groupMasterKey,
1592                         groupContext.getRevision(),
1593                         groupContext.hasSignedGroupChange() ? groupContext.getSignedGroupChange() : null);
1594             }
1595         }
1596
1597         final var conversationPartnerAddress = isSync ? destination : source;
1598         if (conversationPartnerAddress != null && message.isEndSession()) {
1599             handleEndSession(resolveRecipient(conversationPartnerAddress));
1600         }
1601         if (message.isExpirationUpdate() || message.getBody().isPresent()) {
1602             if (message.getGroupContext().isPresent()) {
1603                 if (message.getGroupContext().get().getGroupV1().isPresent()) {
1604                     var groupInfo = message.getGroupContext().get().getGroupV1().get();
1605                     var group = account.getGroupStore().getOrCreateGroupV1(GroupId.v1(groupInfo.getGroupId()));
1606                     if (group != null) {
1607                         if (group.messageExpirationTime != message.getExpiresInSeconds()) {
1608                             group.messageExpirationTime = message.getExpiresInSeconds();
1609                             account.getGroupStore().updateGroup(group);
1610                         }
1611                     }
1612                 } else if (message.getGroupContext().get().getGroupV2().isPresent()) {
1613                     // disappearing message timer already stored in the DecryptedGroup
1614                 }
1615             } else if (conversationPartnerAddress != null) {
1616                 setExpirationTimer(resolveRecipient(conversationPartnerAddress), message.getExpiresInSeconds());
1617             }
1618         }
1619         if (!ignoreAttachments) {
1620             if (message.getAttachments().isPresent()) {
1621                 for (var attachment : message.getAttachments().get()) {
1622                     downloadAttachment(attachment);
1623                 }
1624             }
1625             if (message.getSharedContacts().isPresent()) {
1626                 for (var contact : message.getSharedContacts().get()) {
1627                     if (contact.getAvatar().isPresent()) {
1628                         downloadAttachment(contact.getAvatar().get().getAttachment());
1629                     }
1630                 }
1631             }
1632         }
1633         if (message.getProfileKey().isPresent() && message.getProfileKey().get().length == 32) {
1634             final ProfileKey profileKey;
1635             try {
1636                 profileKey = new ProfileKey(message.getProfileKey().get());
1637             } catch (InvalidInputException e) {
1638                 throw new AssertionError(e);
1639             }
1640             if (source.matches(account.getSelfAddress())) {
1641                 this.account.setProfileKey(profileKey);
1642             }
1643             this.account.getProfileStore().storeProfileKey(resolveRecipient(source), profileKey);
1644         }
1645         if (message.getPreviews().isPresent()) {
1646             final var previews = message.getPreviews().get();
1647             for (var preview : previews) {
1648                 if (preview.getImage().isPresent()) {
1649                     downloadAttachment(preview.getImage().get());
1650                 }
1651             }
1652         }
1653         if (message.getQuote().isPresent()) {
1654             final var quote = message.getQuote().get();
1655
1656             for (var quotedAttachment : quote.getAttachments()) {
1657                 final var thumbnail = quotedAttachment.getThumbnail();
1658                 if (thumbnail != null) {
1659                     downloadAttachment(thumbnail);
1660                 }
1661             }
1662         }
1663         if (message.getSticker().isPresent()) {
1664             final var messageSticker = message.getSticker().get();
1665             final var stickerPackId = StickerPackId.deserialize(messageSticker.getPackId());
1666             var sticker = account.getStickerStore().getSticker(stickerPackId);
1667             if (sticker == null) {
1668                 sticker = new Sticker(stickerPackId, messageSticker.getPackKey());
1669                 account.getStickerStore().updateSticker(sticker);
1670             }
1671         }
1672         return actions;
1673     }
1674
1675     private GroupInfoV2 getOrMigrateGroup(
1676             final GroupMasterKey groupMasterKey, final int revision, final byte[] signedGroupChange
1677     ) {
1678         final var groupSecretParams = GroupSecretParams.deriveFromMasterKey(groupMasterKey);
1679
1680         var groupId = GroupUtils.getGroupIdV2(groupSecretParams);
1681         var groupInfo = getGroup(groupId);
1682         final GroupInfoV2 groupInfoV2;
1683         if (groupInfo instanceof GroupInfoV1) {
1684             // Received a v2 group message for a v1 group, we need to locally migrate the group
1685             account.getGroupStore().deleteGroupV1(((GroupInfoV1) groupInfo).getGroupId());
1686             groupInfoV2 = new GroupInfoV2(groupId, groupMasterKey);
1687             logger.info("Locally migrated group {} to group v2, id: {}",
1688                     groupInfo.getGroupId().toBase64(),
1689                     groupInfoV2.getGroupId().toBase64());
1690         } else if (groupInfo instanceof GroupInfoV2) {
1691             groupInfoV2 = (GroupInfoV2) groupInfo;
1692         } else {
1693             groupInfoV2 = new GroupInfoV2(groupId, groupMasterKey);
1694         }
1695
1696         if (groupInfoV2.getGroup() == null || groupInfoV2.getGroup().getRevision() < revision) {
1697             DecryptedGroup group = null;
1698             if (signedGroupChange != null
1699                     && groupInfoV2.getGroup() != null
1700                     && groupInfoV2.getGroup().getRevision() + 1 == revision) {
1701                 group = groupHelper.getUpdatedDecryptedGroup(groupInfoV2.getGroup(), signedGroupChange, groupMasterKey);
1702             }
1703             if (group == null) {
1704                 group = groupHelper.getDecryptedGroup(groupSecretParams);
1705             }
1706             if (group != null) {
1707                 storeProfileKeysFromMembers(group);
1708                 final var avatar = group.getAvatar();
1709                 if (avatar != null && !avatar.isEmpty()) {
1710                     downloadGroupAvatar(groupId, groupSecretParams, avatar);
1711                 }
1712             }
1713             groupInfoV2.setGroup(group, this::resolveRecipient);
1714             account.getGroupStore().updateGroup(groupInfoV2);
1715         }
1716
1717         return groupInfoV2;
1718     }
1719
1720     private void storeProfileKeysFromMembers(final DecryptedGroup group) {
1721         for (var member : group.getMembersList()) {
1722             final var uuid = UuidUtil.parseOrThrow(member.getUuid().toByteArray());
1723             final var recipientId = account.getRecipientStore().resolveRecipient(uuid);
1724             try {
1725                 account.getProfileStore()
1726                         .storeProfileKey(recipientId, new ProfileKey(member.getProfileKey().toByteArray()));
1727             } catch (InvalidInputException ignored) {
1728             }
1729         }
1730     }
1731
1732     private void retryFailedReceivedMessages(ReceiveMessageHandler handler, boolean ignoreAttachments) {
1733         Set<HandleAction> queuedActions = new HashSet<>();
1734         for (var cachedMessage : account.getMessageCache().getCachedMessages()) {
1735             var actions = retryFailedReceivedMessage(handler, ignoreAttachments, cachedMessage);
1736             if (actions != null) {
1737                 queuedActions.addAll(actions);
1738             }
1739         }
1740         for (var action : queuedActions) {
1741             try {
1742                 action.execute(this);
1743             } catch (Throwable e) {
1744                 logger.warn("Message action failed.", e);
1745             }
1746         }
1747     }
1748
1749     private List<HandleAction> retryFailedReceivedMessage(
1750             final ReceiveMessageHandler handler, final boolean ignoreAttachments, final CachedMessage cachedMessage
1751     ) {
1752         var envelope = cachedMessage.loadEnvelope();
1753         if (envelope == null) {
1754             return null;
1755         }
1756         SignalServiceContent content = null;
1757         List<HandleAction> actions = null;
1758         if (!envelope.isReceipt()) {
1759             try {
1760                 content = decryptMessage(envelope);
1761             } catch (org.whispersystems.libsignal.UntrustedIdentityException e) {
1762                 if (!envelope.hasSource()) {
1763                     final var identifier = ((org.whispersystems.libsignal.UntrustedIdentityException) e).getName();
1764                     final var recipientId = resolveRecipient(identifier);
1765                     try {
1766                         account.getMessageCache().replaceSender(cachedMessage, recipientId);
1767                     } catch (IOException ioException) {
1768                         logger.warn("Failed to move cached message to recipient folder: {}", ioException.getMessage());
1769                     }
1770                 }
1771                 return null;
1772             } catch (Exception er) {
1773                 // All other errors are not recoverable, so delete the cached message
1774                 cachedMessage.delete();
1775                 return null;
1776             }
1777             actions = handleMessage(envelope, content, ignoreAttachments);
1778         }
1779         handler.handleMessage(envelope, content, null);
1780         cachedMessage.delete();
1781         return actions;
1782     }
1783
1784     public void receiveMessages(
1785             long timeout,
1786             TimeUnit unit,
1787             boolean returnOnTimeout,
1788             boolean ignoreAttachments,
1789             ReceiveMessageHandler handler
1790     ) throws IOException {
1791         retryFailedReceivedMessages(handler, ignoreAttachments);
1792
1793         Set<HandleAction> queuedActions = null;
1794
1795         final var messagePipe = getOrCreateMessagePipe();
1796
1797         var hasCaughtUpWithOldMessages = false;
1798
1799         while (true) {
1800             SignalServiceEnvelope envelope;
1801             SignalServiceContent content = null;
1802             Exception exception = null;
1803             final CachedMessage[] cachedMessage = {null};
1804             try {
1805                 var result = messagePipe.readOrEmpty(timeout, unit, envelope1 -> {
1806                     final var recipientId = envelope1.hasSource()
1807                             ? resolveRecipient(envelope1.getSourceIdentifier())
1808                             : null;
1809                     // store message on disk, before acknowledging receipt to the server
1810                     cachedMessage[0] = account.getMessageCache().cacheMessage(envelope1, recipientId);
1811                 });
1812                 if (result.isPresent()) {
1813                     envelope = result.get();
1814                 } else {
1815                     // Received indicator that server queue is empty
1816                     hasCaughtUpWithOldMessages = true;
1817
1818                     if (queuedActions != null) {
1819                         for (var action : queuedActions) {
1820                             try {
1821                                 action.execute(this);
1822                             } catch (Throwable e) {
1823                                 logger.warn("Message action failed.", e);
1824                             }
1825                         }
1826                         queuedActions.clear();
1827                         queuedActions = null;
1828                     }
1829
1830                     // Continue to wait another timeout for new messages
1831                     continue;
1832                 }
1833             } catch (TimeoutException e) {
1834                 if (returnOnTimeout) return;
1835                 continue;
1836             }
1837
1838             if (envelope.hasSource()) {
1839                 // Store uuid if we don't have it already
1840                 resolveRecipientTrusted(envelope.getSourceAddress());
1841             }
1842             final var notAGroupMember = isNotAGroupMember(envelope, content);
1843             if (!envelope.isReceipt()) {
1844                 try {
1845                     content = decryptMessage(envelope);
1846                 } catch (Exception e) {
1847                     exception = e;
1848                 }
1849                 var actions = handleMessage(envelope, content, ignoreAttachments);
1850                 if (exception instanceof ProtocolInvalidMessageException) {
1851                     final var sender = resolveRecipient(((ProtocolInvalidMessageException) exception).getSender());
1852                     logger.debug("Received invalid message, queuing renew session action.");
1853                     actions.add(new RenewSessionAction(sender));
1854                 }
1855                 if (hasCaughtUpWithOldMessages) {
1856                     for (var action : actions) {
1857                         try {
1858                             action.execute(this);
1859                         } catch (Throwable e) {
1860                             logger.warn("Message action failed.", e);
1861                         }
1862                     }
1863                 } else {
1864                     if (queuedActions == null) {
1865                         queuedActions = new HashSet<>();
1866                     }
1867                     queuedActions.addAll(actions);
1868                 }
1869             }
1870             if (isMessageBlocked(envelope, content)) {
1871                 logger.info("Ignoring a message from blocked user/group: {}", envelope.getTimestamp());
1872             } else if (notAGroupMember) {
1873                 logger.info("Ignoring a message from a non group member: {}", envelope.getTimestamp());
1874             } else {
1875                 handler.handleMessage(envelope, content, exception);
1876             }
1877             if (cachedMessage[0] != null) {
1878                 if (exception instanceof org.whispersystems.libsignal.UntrustedIdentityException) {
1879                     final var identifier = ((org.whispersystems.libsignal.UntrustedIdentityException) exception).getName();
1880                     final var recipientId = resolveRecipient(identifier);
1881                     queuedActions.add(new RetrieveProfileAction(recipientId));
1882                     if (!envelope.hasSource()) {
1883                         try {
1884                             cachedMessage[0] = account.getMessageCache().replaceSender(cachedMessage[0], recipientId);
1885                         } catch (IOException ioException) {
1886                             logger.warn("Failed to move cached message to recipient folder: {}",
1887                                     ioException.getMessage());
1888                         }
1889                     }
1890                 } else {
1891                     cachedMessage[0].delete();
1892                 }
1893             }
1894         }
1895     }
1896
1897     private boolean isMessageBlocked(
1898             SignalServiceEnvelope envelope, SignalServiceContent content
1899     ) {
1900         SignalServiceAddress source;
1901         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1902             source = envelope.getSourceAddress();
1903         } else if (content != null) {
1904             source = content.getSender();
1905         } else {
1906             return false;
1907         }
1908         final var recipientId = resolveRecipient(source);
1909         if (isContactBlocked(recipientId)) {
1910             return true;
1911         }
1912
1913         if (content != null && content.getDataMessage().isPresent()) {
1914             var message = content.getDataMessage().get();
1915             if (message.getGroupContext().isPresent()) {
1916                 var groupId = GroupUtils.getGroupId(message.getGroupContext().get());
1917                 var group = getGroup(groupId);
1918                 if (group != null && group.isBlocked()) {
1919                     return true;
1920                 }
1921             }
1922         }
1923         return false;
1924     }
1925
1926     public boolean isContactBlocked(final String identifier) throws InvalidNumberException {
1927         final var recipientId = canonicalizeAndResolveRecipient(identifier);
1928         return isContactBlocked(recipientId);
1929     }
1930
1931     private boolean isContactBlocked(final RecipientId recipientId) {
1932         var sourceContact = account.getContactStore().getContact(recipientId);
1933         return sourceContact != null && sourceContact.isBlocked();
1934     }
1935
1936     private boolean isNotAGroupMember(
1937             SignalServiceEnvelope envelope, SignalServiceContent content
1938     ) {
1939         SignalServiceAddress source;
1940         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1941             source = envelope.getSourceAddress();
1942         } else if (content != null) {
1943             source = content.getSender();
1944         } else {
1945             return false;
1946         }
1947
1948         if (content != null && content.getDataMessage().isPresent()) {
1949             var message = content.getDataMessage().get();
1950             if (message.getGroupContext().isPresent()) {
1951                 if (message.getGroupContext().get().getGroupV1().isPresent()) {
1952                     var groupInfo = message.getGroupContext().get().getGroupV1().get();
1953                     if (groupInfo.getType() == SignalServiceGroup.Type.QUIT) {
1954                         return false;
1955                     }
1956                 }
1957                 var groupId = GroupUtils.getGroupId(message.getGroupContext().get());
1958                 var group = getGroup(groupId);
1959                 if (group != null && !group.isMember(resolveRecipient(source))) {
1960                     return true;
1961                 }
1962             }
1963         }
1964         return false;
1965     }
1966
1967     private List<HandleAction> handleMessage(
1968             SignalServiceEnvelope envelope, SignalServiceContent content, boolean ignoreAttachments
1969     ) {
1970         var actions = new ArrayList<HandleAction>();
1971         if (content != null) {
1972             final SignalServiceAddress sender;
1973             if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1974                 sender = envelope.getSourceAddress();
1975             } else {
1976                 sender = content.getSender();
1977             }
1978
1979             if (content.getDataMessage().isPresent()) {
1980                 var message = content.getDataMessage().get();
1981
1982                 if (content.isNeedsReceipt()) {
1983                     actions.add(new SendReceiptAction(sender, message.getTimestamp()));
1984                 }
1985
1986                 actions.addAll(handleSignalServiceDataMessage(message,
1987                         false,
1988                         sender,
1989                         account.getSelfAddress(),
1990                         ignoreAttachments));
1991             }
1992             if (content.getSyncMessage().isPresent()) {
1993                 account.setMultiDevice(true);
1994                 var syncMessage = content.getSyncMessage().get();
1995                 if (syncMessage.getSent().isPresent()) {
1996                     var message = syncMessage.getSent().get();
1997                     final var destination = message.getDestination().orNull();
1998                     actions.addAll(handleSignalServiceDataMessage(message.getMessage(),
1999                             true,
2000                             sender,
2001                             destination,
2002                             ignoreAttachments));
2003                 }
2004                 if (syncMessage.getRequest().isPresent() && account.isMasterDevice()) {
2005                     var rm = syncMessage.getRequest().get();
2006                     if (rm.isContactsRequest()) {
2007                         actions.add(SendSyncContactsAction.create());
2008                     }
2009                     if (rm.isGroupsRequest()) {
2010                         actions.add(SendSyncGroupsAction.create());
2011                     }
2012                     if (rm.isBlockedListRequest()) {
2013                         actions.add(SendSyncBlockedListAction.create());
2014                     }
2015                     // TODO Handle rm.isConfigurationRequest(); rm.isKeysRequest();
2016                 }
2017                 if (syncMessage.getGroups().isPresent()) {
2018                     File tmpFile = null;
2019                     try {
2020                         tmpFile = IOUtils.createTempFile();
2021                         final var groupsMessage = syncMessage.getGroups().get();
2022                         try (var attachmentAsStream = retrieveAttachmentAsStream(groupsMessage.asPointer(), tmpFile)) {
2023                             var s = new DeviceGroupsInputStream(attachmentAsStream);
2024                             DeviceGroup g;
2025                             while ((g = s.read()) != null) {
2026                                 var syncGroup = account.getGroupStore().getOrCreateGroupV1(GroupId.v1(g.getId()));
2027                                 if (syncGroup != null) {
2028                                     if (g.getName().isPresent()) {
2029                                         syncGroup.name = g.getName().get();
2030                                     }
2031                                     syncGroup.addMembers(g.getMembers()
2032                                             .stream()
2033                                             .map(this::resolveRecipient)
2034                                             .collect(Collectors.toSet()));
2035                                     if (!g.isActive()) {
2036                                         syncGroup.removeMember(account.getSelfRecipientId());
2037                                     } else {
2038                                         // Add ourself to the member set as it's marked as active
2039                                         syncGroup.addMembers(List.of(account.getSelfRecipientId()));
2040                                     }
2041                                     syncGroup.blocked = g.isBlocked();
2042                                     if (g.getColor().isPresent()) {
2043                                         syncGroup.color = g.getColor().get();
2044                                     }
2045
2046                                     if (g.getAvatar().isPresent()) {
2047                                         downloadGroupAvatar(g.getAvatar().get(), syncGroup.getGroupId());
2048                                     }
2049                                     syncGroup.archived = g.isArchived();
2050                                     account.getGroupStore().updateGroup(syncGroup);
2051                                 }
2052                             }
2053                         }
2054                     } catch (Exception e) {
2055                         logger.warn("Failed to handle received sync groups “{}”, ignoring: {}",
2056                                 tmpFile,
2057                                 e.getMessage());
2058                     } finally {
2059                         if (tmpFile != null) {
2060                             try {
2061                                 Files.delete(tmpFile.toPath());
2062                             } catch (IOException e) {
2063                                 logger.warn("Failed to delete received groups temp file “{}”, ignoring: {}",
2064                                         tmpFile,
2065                                         e.getMessage());
2066                             }
2067                         }
2068                     }
2069                 }
2070                 if (syncMessage.getBlockedList().isPresent()) {
2071                     final var blockedListMessage = syncMessage.getBlockedList().get();
2072                     for (var address : blockedListMessage.getAddresses()) {
2073                         setContactBlocked(resolveRecipient(address), true);
2074                     }
2075                     for (var groupId : blockedListMessage.getGroupIds()
2076                             .stream()
2077                             .map(GroupId::unknownVersion)
2078                             .collect(Collectors.toSet())) {
2079                         try {
2080                             setGroupBlocked(groupId, true);
2081                         } catch (GroupNotFoundException e) {
2082                             logger.warn("BlockedListMessage contained groupID that was not found in GroupStore: {}",
2083                                     groupId.toBase64());
2084                         }
2085                     }
2086                 }
2087                 if (syncMessage.getContacts().isPresent()) {
2088                     File tmpFile = null;
2089                     try {
2090                         tmpFile = IOUtils.createTempFile();
2091                         final var contactsMessage = syncMessage.getContacts().get();
2092                         try (var attachmentAsStream = retrieveAttachmentAsStream(contactsMessage.getContactsStream()
2093                                 .asPointer(), tmpFile)) {
2094                             var s = new DeviceContactsInputStream(attachmentAsStream);
2095                             DeviceContact c;
2096                             while ((c = s.read()) != null) {
2097                                 if (c.getAddress().matches(account.getSelfAddress()) && c.getProfileKey().isPresent()) {
2098                                     account.setProfileKey(c.getProfileKey().get());
2099                                 }
2100                                 final var recipientId = resolveRecipientTrusted(c.getAddress());
2101                                 var contact = account.getContactStore().getContact(recipientId);
2102                                 final var builder = contact == null
2103                                         ? Contact.newBuilder()
2104                                         : Contact.newBuilder(contact);
2105                                 if (c.getName().isPresent()) {
2106                                     builder.withName(c.getName().get());
2107                                 }
2108                                 if (c.getColor().isPresent()) {
2109                                     builder.withColor(c.getColor().get());
2110                                 }
2111                                 if (c.getProfileKey().isPresent()) {
2112                                     account.getProfileStore().storeProfileKey(recipientId, c.getProfileKey().get());
2113                                 }
2114                                 if (c.getVerified().isPresent()) {
2115                                     final var verifiedMessage = c.getVerified().get();
2116                                     account.getIdentityKeyStore()
2117                                             .setIdentityTrustLevel(resolveRecipientTrusted(verifiedMessage.getDestination()),
2118                                                     verifiedMessage.getIdentityKey(),
2119                                                     TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
2120                                 }
2121                                 if (c.getExpirationTimer().isPresent()) {
2122                                     builder.withMessageExpirationTime(c.getExpirationTimer().get());
2123                                 }
2124                                 builder.withBlocked(c.isBlocked());
2125                                 builder.withArchived(c.isArchived());
2126                                 account.getContactStore().storeContact(recipientId, builder.build());
2127
2128                                 if (c.getAvatar().isPresent()) {
2129                                     downloadContactAvatar(c.getAvatar().get(), c.getAddress());
2130                                 }
2131                             }
2132                         }
2133                     } catch (Exception e) {
2134                         logger.warn("Failed to handle received sync contacts “{}”, ignoring: {}",
2135                                 tmpFile,
2136                                 e.getMessage());
2137                     } finally {
2138                         if (tmpFile != null) {
2139                             try {
2140                                 Files.delete(tmpFile.toPath());
2141                             } catch (IOException e) {
2142                                 logger.warn("Failed to delete received contacts temp file “{}”, ignoring: {}",
2143                                         tmpFile,
2144                                         e.getMessage());
2145                             }
2146                         }
2147                     }
2148                 }
2149                 if (syncMessage.getVerified().isPresent()) {
2150                     final var verifiedMessage = syncMessage.getVerified().get();
2151                     account.getIdentityKeyStore()
2152                             .setIdentityTrustLevel(resolveRecipientTrusted(verifiedMessage.getDestination()),
2153                                     verifiedMessage.getIdentityKey(),
2154                                     TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
2155                 }
2156                 if (syncMessage.getStickerPackOperations().isPresent()) {
2157                     final var stickerPackOperationMessages = syncMessage.getStickerPackOperations().get();
2158                     for (var m : stickerPackOperationMessages) {
2159                         if (!m.getPackId().isPresent()) {
2160                             continue;
2161                         }
2162                         final var stickerPackId = StickerPackId.deserialize(m.getPackId().get());
2163                         var sticker = account.getStickerStore().getSticker(stickerPackId);
2164                         if (sticker == null) {
2165                             if (!m.getPackKey().isPresent()) {
2166                                 continue;
2167                             }
2168                             sticker = new Sticker(stickerPackId, m.getPackKey().get());
2169                         }
2170                         sticker.setInstalled(!m.getType().isPresent()
2171                                 || m.getType().get() == StickerPackOperationMessage.Type.INSTALL);
2172                         account.getStickerStore().updateSticker(sticker);
2173                     }
2174                 }
2175                 if (syncMessage.getFetchType().isPresent()) {
2176                     switch (syncMessage.getFetchType().get()) {
2177                         case LOCAL_PROFILE:
2178                             getRecipientProfile(account.getSelfRecipientId(), true);
2179                         case STORAGE_MANIFEST:
2180                             // TODO
2181                     }
2182                 }
2183                 if (syncMessage.getKeys().isPresent()) {
2184                     final var keysMessage = syncMessage.getKeys().get();
2185                     if (keysMessage.getStorageService().isPresent()) {
2186                         final var storageKey = keysMessage.getStorageService().get();
2187                         account.setStorageKey(storageKey);
2188                     }
2189                 }
2190                 if (syncMessage.getConfiguration().isPresent()) {
2191                     // TODO
2192                 }
2193             }
2194         }
2195         return actions;
2196     }
2197
2198     private void downloadContactAvatar(SignalServiceAttachment avatar, SignalServiceAddress address) {
2199         try {
2200             avatarStore.storeContactAvatar(address, outputStream -> retrieveAttachment(avatar, outputStream));
2201         } catch (IOException e) {
2202             logger.warn("Failed to download avatar for contact {}, ignoring: {}", address, e.getMessage());
2203         }
2204     }
2205
2206     private void downloadGroupAvatar(SignalServiceAttachment avatar, GroupId groupId) {
2207         try {
2208             avatarStore.storeGroupAvatar(groupId, outputStream -> retrieveAttachment(avatar, outputStream));
2209         } catch (IOException e) {
2210             logger.warn("Failed to download avatar for group {}, ignoring: {}", groupId.toBase64(), e.getMessage());
2211         }
2212     }
2213
2214     private void downloadGroupAvatar(GroupId groupId, GroupSecretParams groupSecretParams, String cdnKey) {
2215         try {
2216             avatarStore.storeGroupAvatar(groupId,
2217                     outputStream -> retrieveGroupV2Avatar(groupSecretParams, cdnKey, outputStream));
2218         } catch (IOException e) {
2219             logger.warn("Failed to download avatar for group {}, ignoring: {}", groupId.toBase64(), e.getMessage());
2220         }
2221     }
2222
2223     private void downloadProfileAvatar(
2224             SignalServiceAddress address, String avatarPath, ProfileKey profileKey
2225     ) {
2226         try {
2227             avatarStore.storeProfileAvatar(address,
2228                     outputStream -> retrieveProfileAvatar(avatarPath, profileKey, outputStream));
2229         } catch (Throwable e) {
2230             logger.warn("Failed to download profile avatar, ignoring: {}", e.getMessage());
2231         }
2232     }
2233
2234     public File getAttachmentFile(SignalServiceAttachmentRemoteId attachmentId) {
2235         return attachmentStore.getAttachmentFile(attachmentId);
2236     }
2237
2238     private void downloadAttachment(final SignalServiceAttachment attachment) {
2239         if (!attachment.isPointer()) {
2240             logger.warn("Invalid state, can't store an attachment stream.");
2241         }
2242
2243         var pointer = attachment.asPointer();
2244         if (pointer.getPreview().isPresent()) {
2245             final var preview = pointer.getPreview().get();
2246             try {
2247                 attachmentStore.storeAttachmentPreview(pointer.getRemoteId(),
2248                         outputStream -> outputStream.write(preview, 0, preview.length));
2249             } catch (IOException e) {
2250                 logger.warn("Failed to download attachment preview, ignoring: {}", e.getMessage());
2251             }
2252         }
2253
2254         try {
2255             attachmentStore.storeAttachment(pointer.getRemoteId(),
2256                     outputStream -> retrieveAttachmentPointer(pointer, outputStream));
2257         } catch (IOException e) {
2258             logger.warn("Failed to download attachment ({}), ignoring: {}", pointer.getRemoteId(), e.getMessage());
2259         }
2260     }
2261
2262     private void retrieveGroupV2Avatar(
2263             GroupSecretParams groupSecretParams, String cdnKey, OutputStream outputStream
2264     ) throws IOException {
2265         var groupOperations = groupsV2Operations.forGroup(groupSecretParams);
2266
2267         var tmpFile = IOUtils.createTempFile();
2268         try (InputStream input = messageReceiver.retrieveGroupsV2ProfileAvatar(cdnKey,
2269                 tmpFile,
2270                 ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
2271             var encryptedData = IOUtils.readFully(input);
2272
2273             var decryptedData = groupOperations.decryptAvatar(encryptedData);
2274             outputStream.write(decryptedData);
2275         } finally {
2276             try {
2277                 Files.delete(tmpFile.toPath());
2278             } catch (IOException e) {
2279                 logger.warn("Failed to delete received group avatar temp file “{}”, ignoring: {}",
2280                         tmpFile,
2281                         e.getMessage());
2282             }
2283         }
2284     }
2285
2286     private void retrieveProfileAvatar(
2287             String avatarPath, ProfileKey profileKey, OutputStream outputStream
2288     ) throws IOException {
2289         var tmpFile = IOUtils.createTempFile();
2290         try (var input = messageReceiver.retrieveProfileAvatar(avatarPath,
2291                 tmpFile,
2292                 profileKey,
2293                 ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
2294             // Use larger buffer size to prevent AssertionError: Need: 12272 but only have: 8192 ...
2295             IOUtils.copyStream(input, outputStream, (int) ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE);
2296         } finally {
2297             try {
2298                 Files.delete(tmpFile.toPath());
2299             } catch (IOException e) {
2300                 logger.warn("Failed to delete received profile avatar temp file “{}”, ignoring: {}",
2301                         tmpFile,
2302                         e.getMessage());
2303             }
2304         }
2305     }
2306
2307     private void retrieveAttachment(
2308             final SignalServiceAttachment attachment, final OutputStream outputStream
2309     ) throws IOException {
2310         if (attachment.isPointer()) {
2311             var pointer = attachment.asPointer();
2312             retrieveAttachmentPointer(pointer, outputStream);
2313         } else {
2314             var stream = attachment.asStream();
2315             IOUtils.copyStream(stream.getInputStream(), outputStream);
2316         }
2317     }
2318
2319     private void retrieveAttachmentPointer(
2320             SignalServiceAttachmentPointer pointer, OutputStream outputStream
2321     ) throws IOException {
2322         var tmpFile = IOUtils.createTempFile();
2323         try (var input = retrieveAttachmentAsStream(pointer, tmpFile)) {
2324             IOUtils.copyStream(input, outputStream);
2325         } catch (MissingConfigurationException | InvalidMessageException e) {
2326             throw new IOException(e);
2327         } finally {
2328             try {
2329                 Files.delete(tmpFile.toPath());
2330             } catch (IOException e) {
2331                 logger.warn("Failed to delete received attachment temp file “{}”, ignoring: {}",
2332                         tmpFile,
2333                         e.getMessage());
2334             }
2335         }
2336     }
2337
2338     private InputStream retrieveAttachmentAsStream(
2339             SignalServiceAttachmentPointer pointer, File tmpFile
2340     ) throws IOException, InvalidMessageException, MissingConfigurationException {
2341         return messageReceiver.retrieveAttachment(pointer, tmpFile, ServiceConfig.MAX_ATTACHMENT_SIZE);
2342     }
2343
2344     void sendGroups() throws IOException, UntrustedIdentityException {
2345         var groupsFile = IOUtils.createTempFile();
2346
2347         try {
2348             try (OutputStream fos = new FileOutputStream(groupsFile)) {
2349                 var out = new DeviceGroupsOutputStream(fos);
2350                 for (var record : getGroups()) {
2351                     if (record instanceof GroupInfoV1) {
2352                         var groupInfo = (GroupInfoV1) record;
2353                         out.write(new DeviceGroup(groupInfo.getGroupId().serialize(),
2354                                 Optional.fromNullable(groupInfo.name),
2355                                 groupInfo.getMembers()
2356                                         .stream()
2357                                         .map(this::resolveSignalServiceAddress)
2358                                         .collect(Collectors.toList()),
2359                                 createGroupAvatarAttachment(groupInfo.getGroupId()),
2360                                 groupInfo.isMember(account.getSelfRecipientId()),
2361                                 Optional.of(groupInfo.messageExpirationTime),
2362                                 Optional.fromNullable(groupInfo.color),
2363                                 groupInfo.blocked,
2364                                 Optional.absent(),
2365                                 groupInfo.archived));
2366                     }
2367                 }
2368             }
2369
2370             if (groupsFile.exists() && groupsFile.length() > 0) {
2371                 try (var groupsFileStream = new FileInputStream(groupsFile)) {
2372                     var attachmentStream = SignalServiceAttachment.newStreamBuilder()
2373                             .withStream(groupsFileStream)
2374                             .withContentType("application/octet-stream")
2375                             .withLength(groupsFile.length())
2376                             .build();
2377
2378                     sendSyncMessage(SignalServiceSyncMessage.forGroups(attachmentStream));
2379                 }
2380             }
2381         } finally {
2382             try {
2383                 Files.delete(groupsFile.toPath());
2384             } catch (IOException e) {
2385                 logger.warn("Failed to delete groups temp file “{}”, ignoring: {}", groupsFile, e.getMessage());
2386             }
2387         }
2388     }
2389
2390     public void sendContacts() throws IOException, UntrustedIdentityException {
2391         var contactsFile = IOUtils.createTempFile();
2392
2393         try {
2394             try (OutputStream fos = new FileOutputStream(contactsFile)) {
2395                 var out = new DeviceContactsOutputStream(fos);
2396                 for (var contactPair : account.getContactStore().getContacts()) {
2397                     final var recipientId = contactPair.first();
2398                     final var contact = contactPair.second();
2399                     final var address = resolveSignalServiceAddress(recipientId);
2400
2401                     var currentIdentity = account.getIdentityKeyStore().getIdentity(recipientId);
2402                     VerifiedMessage verifiedMessage = null;
2403                     if (currentIdentity != null) {
2404                         verifiedMessage = new VerifiedMessage(address,
2405                                 currentIdentity.getIdentityKey(),
2406                                 currentIdentity.getTrustLevel().toVerifiedState(),
2407                                 currentIdentity.getDateAdded().getTime());
2408                     }
2409
2410                     var profileKey = account.getProfileStore().getProfileKey(recipientId);
2411                     out.write(new DeviceContact(address,
2412                             Optional.fromNullable(contact.getName()),
2413                             createContactAvatarAttachment(address),
2414                             Optional.fromNullable(contact.getColor()),
2415                             Optional.fromNullable(verifiedMessage),
2416                             Optional.fromNullable(profileKey),
2417                             contact.isBlocked(),
2418                             Optional.of(contact.getMessageExpirationTime()),
2419                             Optional.absent(),
2420                             contact.isArchived()));
2421                 }
2422
2423                 if (account.getProfileKey() != null) {
2424                     // Send our own profile key as well
2425                     out.write(new DeviceContact(account.getSelfAddress(),
2426                             Optional.absent(),
2427                             Optional.absent(),
2428                             Optional.absent(),
2429                             Optional.absent(),
2430                             Optional.of(account.getProfileKey()),
2431                             false,
2432                             Optional.absent(),
2433                             Optional.absent(),
2434                             false));
2435                 }
2436             }
2437
2438             if (contactsFile.exists() && contactsFile.length() > 0) {
2439                 try (var contactsFileStream = new FileInputStream(contactsFile)) {
2440                     var attachmentStream = SignalServiceAttachment.newStreamBuilder()
2441                             .withStream(contactsFileStream)
2442                             .withContentType("application/octet-stream")
2443                             .withLength(contactsFile.length())
2444                             .build();
2445
2446                     sendSyncMessage(SignalServiceSyncMessage.forContacts(new ContactsMessage(attachmentStream, true)));
2447                 }
2448             }
2449         } finally {
2450             try {
2451                 Files.delete(contactsFile.toPath());
2452             } catch (IOException e) {
2453                 logger.warn("Failed to delete contacts temp file “{}”, ignoring: {}", contactsFile, e.getMessage());
2454             }
2455         }
2456     }
2457
2458     void sendBlockedList() throws IOException, UntrustedIdentityException {
2459         var addresses = new ArrayList<SignalServiceAddress>();
2460         for (var record : account.getContactStore().getContacts()) {
2461             if (record.second().isBlocked()) {
2462                 addresses.add(resolveSignalServiceAddress(record.first()));
2463             }
2464         }
2465         var groupIds = new ArrayList<byte[]>();
2466         for (var record : getGroups()) {
2467             if (record.isBlocked()) {
2468                 groupIds.add(record.getGroupId().serialize());
2469             }
2470         }
2471         sendSyncMessage(SignalServiceSyncMessage.forBlocked(new BlockedListMessage(addresses, groupIds)));
2472     }
2473
2474     private void sendVerifiedMessage(
2475             SignalServiceAddress destination, IdentityKey identityKey, TrustLevel trustLevel
2476     ) throws IOException, UntrustedIdentityException {
2477         var verifiedMessage = new VerifiedMessage(destination,
2478                 identityKey,
2479                 trustLevel.toVerifiedState(),
2480                 System.currentTimeMillis());
2481         sendSyncMessage(SignalServiceSyncMessage.forVerified(verifiedMessage));
2482     }
2483
2484     public List<Pair<RecipientId, Contact>> getContacts() {
2485         return account.getContactStore().getContacts();
2486     }
2487
2488     public String getContactOrProfileName(String number) throws InvalidNumberException {
2489         final var recipientId = canonicalizeAndResolveRecipient(number);
2490         final var recipient = account.getRecipientStore().getRecipient(recipientId);
2491         if (recipient == null) {
2492             return null;
2493         }
2494
2495         if (recipient.getContact() != null && !Util.isEmpty(recipient.getContact().getName())) {
2496             return recipient.getContact().getName();
2497         }
2498
2499         if (recipient.getProfile() != null && recipient.getProfile() != null) {
2500             return recipient.getProfile().getDisplayName();
2501         }
2502
2503         return null;
2504     }
2505
2506     public GroupInfo getGroup(GroupId groupId) {
2507         final var group = account.getGroupStore().getGroup(groupId);
2508         if (group instanceof GroupInfoV2 && ((GroupInfoV2) group).getGroup() == null) {
2509             final var groupSecretParams = GroupSecretParams.deriveFromMasterKey(((GroupInfoV2) group).getMasterKey());
2510             ((GroupInfoV2) group).setGroup(groupHelper.getDecryptedGroup(groupSecretParams), this::resolveRecipient);
2511             account.getGroupStore().updateGroup(group);
2512         }
2513         return group;
2514     }
2515
2516     public List<IdentityInfo> getIdentities() {
2517         return account.getIdentityKeyStore().getIdentities();
2518     }
2519
2520     public List<IdentityInfo> getIdentities(String number) throws InvalidNumberException {
2521         final var identity = account.getIdentityKeyStore().getIdentity(canonicalizeAndResolveRecipient(number));
2522         return identity == null ? List.of() : List.of(identity);
2523     }
2524
2525     /**
2526      * Trust this the identity with this fingerprint
2527      *
2528      * @param name        username of the identity
2529      * @param fingerprint Fingerprint
2530      */
2531     public boolean trustIdentityVerified(String name, byte[] fingerprint) throws InvalidNumberException {
2532         var recipientId = canonicalizeAndResolveRecipient(name);
2533         return trustIdentity(recipientId,
2534                 identityKey -> Arrays.equals(identityKey.serialize(), fingerprint),
2535                 TrustLevel.TRUSTED_VERIFIED);
2536     }
2537
2538     /**
2539      * Trust this the identity with this safety number
2540      *
2541      * @param name         username of the identity
2542      * @param safetyNumber Safety number
2543      */
2544     public boolean trustIdentityVerifiedSafetyNumber(String name, String safetyNumber) throws InvalidNumberException {
2545         var recipientId = canonicalizeAndResolveRecipient(name);
2546         var address = account.getRecipientStore().resolveServiceAddress(recipientId);
2547         return trustIdentity(recipientId,
2548                 identityKey -> safetyNumber.equals(computeSafetyNumber(address, identityKey)),
2549                 TrustLevel.TRUSTED_VERIFIED);
2550     }
2551
2552     /**
2553      * Trust all keys of this identity without verification
2554      *
2555      * @param name username of the identity
2556      */
2557     public boolean trustIdentityAllKeys(String name) throws InvalidNumberException {
2558         var recipientId = canonicalizeAndResolveRecipient(name);
2559         return trustIdentity(recipientId, identityKey -> true, TrustLevel.TRUSTED_UNVERIFIED);
2560     }
2561
2562     private boolean trustIdentity(
2563             RecipientId recipientId, Function<IdentityKey, Boolean> verifier, TrustLevel trustLevel
2564     ) {
2565         var identity = account.getIdentityKeyStore().getIdentity(recipientId);
2566         if (identity == null) {
2567             return false;
2568         }
2569
2570         if (!verifier.apply(identity.getIdentityKey())) {
2571             return false;
2572         }
2573
2574         account.getIdentityKeyStore().setIdentityTrustLevel(recipientId, identity.getIdentityKey(), trustLevel);
2575         try {
2576             var address = account.getRecipientStore().resolveServiceAddress(recipientId);
2577             sendVerifiedMessage(address, identity.getIdentityKey(), trustLevel);
2578         } catch (IOException | UntrustedIdentityException e) {
2579             logger.warn("Failed to send verification sync message: {}", e.getMessage());
2580         }
2581
2582         return true;
2583     }
2584
2585     public String computeSafetyNumber(
2586             SignalServiceAddress theirAddress, IdentityKey theirIdentityKey
2587     ) {
2588         return Utils.computeSafetyNumber(ServiceConfig.capabilities.isUuid(),
2589                 account.getSelfAddress(),
2590                 getIdentityKeyPair().getPublicKey(),
2591                 theirAddress,
2592                 theirIdentityKey);
2593     }
2594
2595     @Deprecated
2596     public SignalServiceAddress resolveSignalServiceAddress(String identifier) {
2597         var address = Utils.getSignalServiceAddressFromIdentifier(identifier);
2598
2599         return resolveSignalServiceAddress(address);
2600     }
2601
2602     @Deprecated
2603     public SignalServiceAddress resolveSignalServiceAddress(SignalServiceAddress address) {
2604         if (address.matches(account.getSelfAddress())) {
2605             return account.getSelfAddress();
2606         }
2607
2608         return account.getRecipientStore().resolveServiceAddress(address);
2609     }
2610
2611     public SignalServiceAddress resolveSignalServiceAddress(RecipientId recipientId) {
2612         return account.getRecipientStore().resolveServiceAddress(recipientId);
2613     }
2614
2615     public RecipientId canonicalizeAndResolveRecipient(String identifier) throws InvalidNumberException {
2616         var canonicalizedNumber = UuidUtil.isUuid(identifier)
2617                 ? identifier
2618                 : PhoneNumberFormatter.formatNumber(identifier, account.getUsername());
2619
2620         return resolveRecipient(canonicalizedNumber);
2621     }
2622
2623     private RecipientId resolveRecipient(final String identifier) {
2624         var address = Utils.getSignalServiceAddressFromIdentifier(identifier);
2625
2626         return resolveRecipient(address);
2627     }
2628
2629     public RecipientId resolveRecipient(SignalServiceAddress address) {
2630         return account.getRecipientStore().resolveRecipient(address);
2631     }
2632
2633     private RecipientId resolveRecipientTrusted(SignalServiceAddress address) {
2634         return account.getRecipientStore().resolveRecipientTrusted(address);
2635     }
2636
2637     @Override
2638     public void close() throws IOException {
2639         close(true);
2640     }
2641
2642     void close(boolean closeAccount) throws IOException {
2643         executor.shutdown();
2644
2645         if (messagePipe != null) {
2646             messagePipe.shutdown();
2647             messagePipe = null;
2648         }
2649
2650         if (unidentifiedMessagePipe != null) {
2651             unidentifiedMessagePipe.shutdown();
2652             unidentifiedMessagePipe = null;
2653         }
2654
2655         if (closeAccount && account != null) {
2656             account.close();
2657         }
2658         account = null;
2659     }
2660
2661     public interface ReceiveMessageHandler {
2662
2663         void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent decryptedContent, Throwable e);
2664     }
2665 }