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, true);
 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 profile = account.getProfileStore().getProfile(recipientId);
 560
 561         var now = new Date().getTime();
 562         // Profiles are cached for 24h before retrieving them again, unless forced
 563         if (!force && profile != null && now - profile.getLastUpdateTimestamp() < 24 * 60 * 60 * 1000) {
 564             return profile;
 565         }
 566
 567         synchronized (pendingProfileRequest) {
 568             if (pendingProfileRequest.contains(recipientId)) {
 569                 return profile;
 570             }
 571             pendingProfileRequest.add(recipientId);
 572         }
 573         final SignalServiceProfile encryptedProfile;
 574         try {
 575             encryptedProfile = retrieveEncryptedProfile(recipientId);
 576         } finally {
 577             synchronized (pendingProfileRequest) {
 578                 pendingProfileRequest.remove(recipientId);
 579             }
 580         }
 581         if (encryptedProfile == null) {
 582             return null;
 583         }
 584
 585         var profileKey = account.getProfileStore().getProfileKey(recipientId);
 586         if (profileKey == null) {
 587             profile = new Profile(new Date().getTime(),
 588                     null,
 589                     null,
 590                     null,
 591                     null,
 592                     ProfileUtils.getUnidentifiedAccessMode(encryptedProfile, null),
 593                     ProfileUtils.getCapabilities(encryptedProfile));
 594         } else {
 595             profile = decryptProfileAndDownloadAvatar(recipientId, profileKey, encryptedProfile);
 596         }
 597         account.getProfileStore().storeProfile(recipientId, profile);
 598
 599         return profile;
 600     }
 601
 602     private SignalServiceProfile retrieveEncryptedProfile(RecipientId recipientId) {
 603         try {
 604             return retrieveProfileAndCredential(recipientId, SignalServiceProfile.RequestType.PROFILE).getProfile();
 605         } catch (IOException e) {
 606             logger.warn("Failed to retrieve profile, ignoring: {}", e.getMessage());
 607             return null;
 608         }
 609     }
 610
 611     private ProfileAndCredential retrieveProfileAndCredential(
 612             final RecipientId recipientId, final SignalServiceProfile.RequestType requestType
 613     ) throws IOException {
 614         final var profileAndCredential = profileHelper.retrieveProfileSync(recipientId, requestType);
 615         final var profile = profileAndCredential.getProfile();
 616
 617         try {
 618             var newIdentity = account.getIdentityKeyStore()
 619                     .saveIdentity(recipientId,
 620                             new IdentityKey(Base64.getDecoder().decode(profile.getIdentityKey())),
 621                             new Date());
 622
 623             if (newIdentity) {
 624                 account.getSessionStore().archiveSessions(recipientId);
 625             }
 626         } catch (InvalidKeyException ignored) {
 627             logger.warn("Got invalid identity key in profile for {}",
 628                     resolveSignalServiceAddress(recipientId).getLegacyIdentifier());
 629         }
 630         return profileAndCredential;
 631     }
 632
 633     private ProfileKeyCredential getRecipientProfileKeyCredential(RecipientId recipientId) {
 634         var profileKeyCredential = account.getProfileStore().getProfileKeyCredential(recipientId);
 635         if (profileKeyCredential != null) {
 636             return profileKeyCredential;
 637         }
 638
 639         ProfileAndCredential profileAndCredential;
 640         try {
 641             profileAndCredential = retrieveProfileAndCredential(recipientId,
 642                     SignalServiceProfile.RequestType.PROFILE_AND_CREDENTIAL);
 643         } catch (IOException e) {
 644             logger.warn("Failed to retrieve profile key credential, ignoring: {}", e.getMessage());
 645             return null;
 646         }
 647
 648         profileKeyCredential = profileAndCredential.getProfileKeyCredential().orNull();
 649         account.getProfileStore().storeProfileKeyCredential(recipientId, profileKeyCredential);
 650
 651         var profileKey = account.getProfileStore().getProfileKey(recipientId);
 652         if (profileKey != null) {
 653             final var profile = decryptProfileAndDownloadAvatar(recipientId,
 654                     profileKey,
 655                     profileAndCredential.getProfile());
 656             account.getProfileStore().storeProfile(recipientId, profile);
 657         }
 658
 659         return profileKeyCredential;
 660     }
 661
 662     private Profile decryptProfileAndDownloadAvatar(
 663             final RecipientId recipientId, final ProfileKey profileKey, final SignalServiceProfile encryptedProfile
 664     ) {
 665         if (encryptedProfile.getAvatar() != null) {
 666             downloadProfileAvatar(resolveSignalServiceAddress(recipientId), encryptedProfile.getAvatar(), profileKey);
 667         }
 668
 669         return ProfileUtils.decryptProfile(profileKey, encryptedProfile);
 670     }
 671
 672     private Optional<SignalServiceAttachmentStream> createGroupAvatarAttachment(GroupId groupId) throws IOException {
 673         final var streamDetails = avatarStore.retrieveGroupAvatar(groupId);
 674         if (streamDetails == null) {
 675             return Optional.absent();
 676         }
 677
 678         return Optional.of(AttachmentUtils.createAttachment(streamDetails, Optional.absent()));
 679     }
 680
 681     private Optional<SignalServiceAttachmentStream> createContactAvatarAttachment(SignalServiceAddress address) throws IOException {
 682         final var streamDetails = avatarStore.retrieveContactAvatar(address);
 683         if (streamDetails == null) {
 684             return Optional.absent();
 685         }
 686
 687         return Optional.of(AttachmentUtils.createAttachment(streamDetails, Optional.absent()));
 688     }
 689
 690     private GroupInfo getGroupForSending(GroupId groupId) throws GroupNotFoundException, NotAGroupMemberException {
 691         var g = getGroup(groupId);
 692         if (g == null) {
 693             throw new GroupNotFoundException(groupId);
 694         }
 695         if (!g.isMember(account.getSelfRecipientId())) {
 696             throw new NotAGroupMemberException(groupId, g.getTitle());
 697         }
 698         return g;
 699     }
 700
 701     private GroupInfo getGroupForUpdating(GroupId groupId) throws GroupNotFoundException, NotAGroupMemberException {
 702         var g = getGroup(groupId);
 703         if (g == null) {
 704             throw new GroupNotFoundException(groupId);
 705         }
 706         if (!g.isMember(account.getSelfRecipientId()) && !g.isPendingMember(account.getSelfRecipientId())) {
 707             throw new NotAGroupMemberException(groupId, g.getTitle());
 708         }
 709         return g;
 710     }
 711
 712     public List<GroupInfo> getGroups() {
 713         return account.getGroupStore().getGroups();
 714     }
 715
 716     public Pair<Long, List<SendMessageResult>> sendGroupMessage(
 717             String messageText, List<String> attachments, GroupId groupId
 718     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 719         final var messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
 720         if (attachments != null) {
 721             messageBuilder.withAttachments(AttachmentUtils.getSignalServiceAttachments(attachments));
 722         }
 723
 724         return sendGroupMessage(messageBuilder, groupId);
 725     }
 726
 727     public Pair<Long, List<SendMessageResult>> sendGroupMessageReaction(
 728             String emoji, boolean remove, String targetAuthor, long targetSentTimestamp, GroupId groupId
 729     ) throws IOException, InvalidNumberException, NotAGroupMemberException, GroupNotFoundException {
 730         var targetAuthorRecipientId = canonicalizeAndResolveRecipient(targetAuthor);
 731         var reaction = new SignalServiceDataMessage.Reaction(emoji,
 732                 remove,
 733                 resolveSignalServiceAddress(targetAuthorRecipientId),
 734                 targetSentTimestamp);
 735         final var messageBuilder = SignalServiceDataMessage.newBuilder().withReaction(reaction);
 736
 737         return sendGroupMessage(messageBuilder, groupId);
 738     }
 739
 740     public Pair<Long, List<SendMessageResult>> sendGroupMessage(
 741             SignalServiceDataMessage.Builder messageBuilder, GroupId groupId
 742     ) throws IOException, GroupNotFoundException, NotAGroupMemberException {
 743         final var g = getGroupForSending(groupId);
 744
 745         GroupUtils.setGroupContext(messageBuilder, g);
 746         messageBuilder.withExpiration(g.getMessageExpirationTime());
 747
 748         return sendMessage(messageBuilder, g.getMembersWithout(account.getSelfRecipientId()));
 749     }
 750
 751     public Pair<Long, List<SendMessageResult>> sendQuitGroupMessage(GroupId groupId) throws GroupNotFoundException, IOException, NotAGroupMemberException {
 752         SignalServiceDataMessage.Builder messageBuilder;
 753
 754         final var g = getGroupForUpdating(groupId);
 755         if (g instanceof GroupInfoV1) {
 756             var groupInfoV1 = (GroupInfoV1) g;
 757             var group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.QUIT).withId(groupId.serialize()).build();
 758             messageBuilder = SignalServiceDataMessage.newBuilder().asGroupMessage(group);
 759             groupInfoV1.removeMember(account.getSelfRecipientId());
 760             account.getGroupStore().updateGroup(groupInfoV1);
 761         } else {
 762             final var groupInfoV2 = (GroupInfoV2) g;
 763             final var groupGroupChangePair = groupHelper.leaveGroup(groupInfoV2);
 764             groupInfoV2.setGroup(groupGroupChangePair.first(), this::resolveRecipient);
 765             messageBuilder = getGroupUpdateMessageBuilder(groupInfoV2, groupGroupChangePair.second().toByteArray());
 766             account.getGroupStore().updateGroup(groupInfoV2);
 767         }
 768
 769         return sendMessage(messageBuilder, g.getMembersWithout(account.getSelfRecipientId()));
 770     }
 771
 772     public Pair<GroupId, List<SendMessageResult>> updateGroup(
 773             GroupId groupId, String name, List<String> members, File avatarFile
 774     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, InvalidNumberException, NotAGroupMemberException {
 775         return sendUpdateGroupMessage(groupId,
 776                 name,
 777                 members == null ? null : getSignalServiceAddresses(members),
 778                 avatarFile);
 779     }
 780
 781     private Pair<GroupId, List<SendMessageResult>> sendUpdateGroupMessage(
 782             GroupId groupId, String name, Set<RecipientId> members, File avatarFile
 783     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 784         GroupInfo g;
 785         SignalServiceDataMessage.Builder messageBuilder;
 786         if (groupId == null) {
 787             // Create new group
 788             var gv2Pair = groupHelper.createGroupV2(name == null ? "" : name,
 789                     members == null ? Set.of() : members,
 790                     avatarFile);
 791             if (gv2Pair == null) {
 792                 var gv1 = new GroupInfoV1(GroupIdV1.createRandom());
 793                 gv1.addMembers(List.of(account.getSelfRecipientId()));
 794                 updateGroupV1(gv1, name, members, avatarFile);
 795                 messageBuilder = getGroupUpdateMessageBuilder(gv1);
 796                 g = gv1;
 797             } else {
 798                 final var gv2 = gv2Pair.first();
 799                 final var decryptedGroup = gv2Pair.second();
 800
 801                 gv2.setGroup(decryptedGroup, this::resolveRecipient);
 802                 if (avatarFile != null) {
 803                     avatarStore.storeGroupAvatar(gv2.getGroupId(),
 804                             outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
 805                 }
 806                 messageBuilder = getGroupUpdateMessageBuilder(gv2, null);
 807                 g = gv2;
 808             }
 809         } else {
 810             var group = getGroupForUpdating(groupId);
 811             if (group instanceof GroupInfoV2) {
 812                 final var groupInfoV2 = (GroupInfoV2) group;
 813
 814                 Pair<Long, List<SendMessageResult>> result = null;
 815                 if (groupInfoV2.isPendingMember(account.getSelfRecipientId())) {
 816                     var groupGroupChangePair = groupHelper.acceptInvite(groupInfoV2);
 817                     result = sendUpdateGroupMessage(groupInfoV2,
 818                             groupGroupChangePair.first(),
 819                             groupGroupChangePair.second());
 820                 }
 821
 822                 if (members != null) {
 823                     final var newMembers = new HashSet<>(members);
 824                     newMembers.removeAll(group.getMembers());
 825                     if (newMembers.size() > 0) {
 826                         var groupGroupChangePair = groupHelper.updateGroupV2(groupInfoV2, newMembers);
 827                         result = sendUpdateGroupMessage(groupInfoV2,
 828                                 groupGroupChangePair.first(),
 829                                 groupGroupChangePair.second());
 830                     }
 831                 }
 832                 if (result == null || name != null || avatarFile != null) {
 833                     var groupGroupChangePair = groupHelper.updateGroupV2(groupInfoV2, name, avatarFile);
 834                     if (avatarFile != null) {
 835                         avatarStore.storeGroupAvatar(groupInfoV2.getGroupId(),
 836                                 outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
 837                     }
 838                     result = sendUpdateGroupMessage(groupInfoV2,
 839                             groupGroupChangePair.first(),
 840                             groupGroupChangePair.second());
 841                 }
 842
 843                 return new Pair<>(group.getGroupId(), result.second());
 844             } else {
 845                 var gv1 = (GroupInfoV1) group;
 846                 updateGroupV1(gv1, name, members, avatarFile);
 847                 messageBuilder = getGroupUpdateMessageBuilder(gv1);
 848                 g = gv1;
 849             }
 850         }
 851
 852         account.getGroupStore().updateGroup(g);
 853
 854         final var result = sendMessage(messageBuilder,
 855                 g.getMembersIncludingPendingWithout(account.getSelfRecipientId()));
 856         return new Pair<>(g.getGroupId(), result.second());
 857     }
 858
 859     private void updateGroupV1(
 860             final GroupInfoV1 g, final String name, final Collection<RecipientId> members, final File avatarFile
 861     ) throws IOException {
 862         if (name != null) {
 863             g.name = name;
 864         }
 865
 866         if (members != null) {
 867             final var newMemberAddresses = members.stream()
 868                     .filter(member -> !g.isMember(member))
 869                     .map(this::resolveSignalServiceAddress)
 870                     .collect(Collectors.toList());
 871             final var newE164Members = new HashSet<String>();
 872             for (var member : newMemberAddresses) {
 873                 if (!member.getNumber().isPresent()) {
 874                     continue;
 875                 }
 876                 newE164Members.add(member.getNumber().get());
 877             }
 878
 879             final var registeredUsers = getRegisteredUsers(newE164Members);
 880             if (registeredUsers.size() != newE164Members.size()) {
 881                 // Some of the new members are not registered on Signal
 882                 newE164Members.removeAll(registeredUsers.keySet());
 883                 throw new IOException("Failed to add members "
 884                         + String.join(", ", newE164Members)
 885                         + " to group: Not registered on Signal");
 886             }
 887
 888             g.addMembers(members);
 889         }
 890
 891         if (avatarFile != null) {
 892             avatarStore.storeGroupAvatar(g.getGroupId(),
 893                     outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
 894         }
 895     }
 896
 897     public Pair<GroupId, List<SendMessageResult>> joinGroup(
 898             GroupInviteLinkUrl inviteLinkUrl
 899     ) throws IOException, GroupLinkNotActiveException {
 900         return sendJoinGroupMessage(inviteLinkUrl);
 901     }
 902
 903     private Pair<GroupId, List<SendMessageResult>> sendJoinGroupMessage(
 904             GroupInviteLinkUrl inviteLinkUrl
 905     ) throws IOException, GroupLinkNotActiveException {
 906         final var groupJoinInfo = groupHelper.getDecryptedGroupJoinInfo(inviteLinkUrl.getGroupMasterKey(),
 907                 inviteLinkUrl.getPassword());
 908         final var groupChange = groupHelper.joinGroup(inviteLinkUrl.getGroupMasterKey(),
 909                 inviteLinkUrl.getPassword(),
 910                 groupJoinInfo);
 911         final var group = getOrMigrateGroup(inviteLinkUrl.getGroupMasterKey(),
 912                 groupJoinInfo.getRevision() + 1,
 913                 groupChange.toByteArray());
 914
 915         if (group.getGroup() == null) {
 916             // Only requested member, can't send update to group members
 917             return new Pair<>(group.getGroupId(), List.of());
 918         }
 919
 920         final var result = sendUpdateGroupMessage(group, group.getGroup(), groupChange);
 921
 922         return new Pair<>(group.getGroupId(), result.second());
 923     }
 924
 925     private static int currentTimeDays() {
 926         return (int) TimeUnit.MILLISECONDS.toDays(System.currentTimeMillis());
 927     }
 928
 929     private GroupsV2AuthorizationString getGroupAuthForToday(
 930             final GroupSecretParams groupSecretParams
 931     ) throws IOException {
 932         final var today = currentTimeDays();
 933         // Returns credentials for the next 7 days
 934         final var credentials = groupsV2Api.getCredentials(today);
 935         // TODO cache credentials until they expire
 936         var authCredentialResponse = credentials.get(today);
 937         try {
 938             return groupsV2Api.getGroupsV2AuthorizationString(account.getUuid(),
 939                     today,
 940                     groupSecretParams,
 941                     authCredentialResponse);
 942         } catch (VerificationFailedException e) {
 943             throw new IOException(e);
 944         }
 945     }
 946
 947     private Pair<Long, List<SendMessageResult>> sendUpdateGroupMessage(
 948             GroupInfoV2 group, DecryptedGroup newDecryptedGroup, GroupChange groupChange
 949     ) throws IOException {
 950         group.setGroup(newDecryptedGroup, this::resolveRecipient);
 951         final var messageBuilder = getGroupUpdateMessageBuilder(group, groupChange.toByteArray());
 952         account.getGroupStore().updateGroup(group);
 953         return sendMessage(messageBuilder, group.getMembersIncludingPendingWithout(account.getSelfRecipientId()));
 954     }
 955
 956     Pair<Long, List<SendMessageResult>> sendGroupInfoMessage(
 957             GroupIdV1 groupId, SignalServiceAddress recipient
 958     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, AttachmentInvalidException {
 959         GroupInfoV1 g;
 960         var group = getGroupForSending(groupId);
 961         if (!(group instanceof GroupInfoV1)) {
 962             throw new RuntimeException("Received an invalid group request for a v2 group!");
 963         }
 964         g = (GroupInfoV1) group;
 965
 966         final var recipientId = resolveRecipient(recipient);
 967         if (!g.isMember(recipientId)) {
 968             throw new NotAGroupMemberException(groupId, g.name);
 969         }
 970
 971         var messageBuilder = getGroupUpdateMessageBuilder(g);
 972
 973         // Send group message only to the recipient who requested it
 974         return sendMessage(messageBuilder, Set.of(recipientId));
 975     }
 976
 977     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfoV1 g) throws AttachmentInvalidException {
 978         var group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.UPDATE)
 979                 .withId(g.getGroupId().serialize())
 980                 .withName(g.name)
 981                 .withMembers(g.getMembers()
 982                         .stream()
 983                         .map(this::resolveSignalServiceAddress)
 984                         .collect(Collectors.toList()));
 985
 986         try {
 987             final var attachment = createGroupAvatarAttachment(g.getGroupId());
 988             if (attachment.isPresent()) {
 989                 group.withAvatar(attachment.get());
 990             }
 991         } catch (IOException e) {
 992             throw new AttachmentInvalidException(g.getGroupId().toBase64(), e);
 993         }
 994
 995         return SignalServiceDataMessage.newBuilder()
 996                 .asGroupMessage(group.build())
 997                 .withExpiration(g.getMessageExpirationTime());
 998     }
 999
1000     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfoV2 g, byte[] signedGroupChange) {
1001         var group = SignalServiceGroupV2.newBuilder(g.getMasterKey())
1002                 .withRevision(g.getGroup().getRevision())
1003                 .withSignedGroupChange(signedGroupChange);
1004         return SignalServiceDataMessage.newBuilder()
1005                 .asGroupMessage(group.build())
1006                 .withExpiration(g.getMessageExpirationTime());
1007     }
1008
1009     Pair<Long, List<SendMessageResult>> sendGroupInfoRequest(
1010             GroupIdV1 groupId, SignalServiceAddress recipient
1011     ) throws IOException {
1012         var group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.REQUEST_INFO).withId(groupId.serialize());
1013
1014         var messageBuilder = SignalServiceDataMessage.newBuilder().asGroupMessage(group.build());
1015
1016         // Send group info request message to the recipient who sent us a message with this groupId
1017         return sendMessage(messageBuilder, Set.of(resolveRecipient(recipient)));
1018     }
1019
1020     void sendReceipt(
1021             SignalServiceAddress remoteAddress, long messageId
1022     ) throws IOException, UntrustedIdentityException {
1023         var receiptMessage = new SignalServiceReceiptMessage(SignalServiceReceiptMessage.Type.DELIVERY,
1024                 List.of(messageId),
1025                 System.currentTimeMillis());
1026
1027         createMessageSender().sendReceipt(remoteAddress,
1028                 unidentifiedAccessHelper.getAccessFor(resolveRecipient(remoteAddress)),
1029                 receiptMessage);
1030     }
1031
1032     public Pair<Long, List<SendMessageResult>> sendMessage(
1033             String messageText, List<String> attachments, List<String> recipients
1034     ) throws IOException, AttachmentInvalidException, InvalidNumberException {
1035         final var messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
1036         if (attachments != null) {
1037             var attachmentStreams = AttachmentUtils.getSignalServiceAttachments(attachments);
1038
1039             // Upload attachments here, so we only upload once even for multiple recipients
1040             var messageSender = createMessageSender();
1041             var attachmentPointers = new ArrayList<SignalServiceAttachment>(attachmentStreams.size());
1042             for (var attachment : attachmentStreams) {
1043                 if (attachment.isStream()) {
1044                     attachmentPointers.add(messageSender.uploadAttachment(attachment.asStream()));
1045                 } else if (attachment.isPointer()) {
1046                     attachmentPointers.add(attachment.asPointer());
1047                 }
1048             }
1049
1050             messageBuilder.withAttachments(attachmentPointers);
1051         }
1052         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
1053     }
1054
1055     public Pair<Long, SendMessageResult> sendSelfMessage(
1056             String messageText, List<String> attachments
1057     ) throws IOException, AttachmentInvalidException {
1058         final var messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
1059         if (attachments != null) {
1060             messageBuilder.withAttachments(AttachmentUtils.getSignalServiceAttachments(attachments));
1061         }
1062         return sendSelfMessage(messageBuilder);
1063     }
1064
1065     public Pair<Long, List<SendMessageResult>> sendRemoteDeleteMessage(
1066             long targetSentTimestamp, List<String> recipients
1067     ) throws IOException, InvalidNumberException {
1068         var delete = new SignalServiceDataMessage.RemoteDelete(targetSentTimestamp);
1069         final var messageBuilder = SignalServiceDataMessage.newBuilder().withRemoteDelete(delete);
1070         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
1071     }
1072
1073     public Pair<Long, List<SendMessageResult>> sendGroupRemoteDeleteMessage(
1074             long targetSentTimestamp, GroupId groupId
1075     ) throws IOException, NotAGroupMemberException, GroupNotFoundException {
1076         var delete = new SignalServiceDataMessage.RemoteDelete(targetSentTimestamp);
1077         final var messageBuilder = SignalServiceDataMessage.newBuilder().withRemoteDelete(delete);
1078         return sendGroupMessage(messageBuilder, groupId);
1079     }
1080
1081     public Pair<Long, List<SendMessageResult>> sendMessageReaction(
1082             String emoji, boolean remove, String targetAuthor, long targetSentTimestamp, List<String> recipients
1083     ) throws IOException, InvalidNumberException {
1084         var targetAuthorRecipientId = canonicalizeAndResolveRecipient(targetAuthor);
1085         var reaction = new SignalServiceDataMessage.Reaction(emoji,
1086                 remove,
1087                 resolveSignalServiceAddress(targetAuthorRecipientId),
1088                 targetSentTimestamp);
1089         final var messageBuilder = SignalServiceDataMessage.newBuilder().withReaction(reaction);
1090         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
1091     }
1092
1093     public Pair<Long, List<SendMessageResult>> sendEndSessionMessage(List<String> recipients) throws IOException, InvalidNumberException {
1094         var messageBuilder = SignalServiceDataMessage.newBuilder().asEndSessionMessage();
1095
1096         final var signalServiceAddresses = getSignalServiceAddresses(recipients);
1097         try {
1098             return sendMessage(messageBuilder, signalServiceAddresses);
1099         } catch (Exception e) {
1100             for (var address : signalServiceAddresses) {
1101                 handleEndSession(address);
1102             }
1103             throw e;
1104         }
1105     }
1106
1107     void renewSession(RecipientId recipientId) throws IOException {
1108         account.getSessionStore().archiveSessions(recipientId);
1109         if (!recipientId.equals(getSelfRecipientId())) {
1110             sendNullMessage(recipientId);
1111         }
1112     }
1113
1114     public String getContactName(String number) throws InvalidNumberException {
1115         var contact = account.getContactStore().getContact(canonicalizeAndResolveRecipient(number));
1116         return contact == null || contact.getName() == null ? "" : contact.getName();
1117     }
1118
1119     public void setContactName(String number, String name) throws InvalidNumberException, NotMasterDeviceException {
1120         if (!account.isMasterDevice()) {
1121             throw new NotMasterDeviceException();
1122         }
1123         final var recipientId = canonicalizeAndResolveRecipient(number);
1124         var contact = account.getContactStore().getContact(recipientId);
1125         final var builder = contact == null ? Contact.newBuilder() : Contact.newBuilder(contact);
1126         account.getContactStore().storeContact(recipientId, builder.withName(name).build());
1127     }
1128
1129     public void setContactBlocked(
1130             String number, boolean blocked
1131     ) throws InvalidNumberException, NotMasterDeviceException {
1132         if (!account.isMasterDevice()) {
1133             throw new NotMasterDeviceException();
1134         }
1135         setContactBlocked(canonicalizeAndResolveRecipient(number), blocked);
1136     }
1137
1138     private void setContactBlocked(RecipientId recipientId, boolean blocked) {
1139         var contact = account.getContactStore().getContact(recipientId);
1140         final var builder = contact == null ? Contact.newBuilder() : Contact.newBuilder(contact);
1141         account.getContactStore().storeContact(recipientId, builder.withBlocked(blocked).build());
1142     }
1143
1144     public void setGroupBlocked(final GroupId groupId, final boolean blocked) throws GroupNotFoundException {
1145         var group = getGroup(groupId);
1146         if (group == null) {
1147             throw new GroupNotFoundException(groupId);
1148         }
1149
1150         group.setBlocked(blocked);
1151         account.getGroupStore().updateGroup(group);
1152     }
1153
1154     private void setExpirationTimer(RecipientId recipientId, int messageExpirationTimer) {
1155         var contact = account.getContactStore().getContact(recipientId);
1156         if (contact != null && contact.getMessageExpirationTime() == messageExpirationTimer) {
1157             return;
1158         }
1159         final var builder = contact == null ? Contact.newBuilder() : Contact.newBuilder(contact);
1160         account.getContactStore()
1161                 .storeContact(recipientId, builder.withMessageExpirationTime(messageExpirationTimer).build());
1162     }
1163
1164     private void sendExpirationTimerUpdate(RecipientId recipientId) throws IOException {
1165         final var messageBuilder = SignalServiceDataMessage.newBuilder().asExpirationUpdate();
1166         sendMessage(messageBuilder, Set.of(recipientId));
1167     }
1168
1169     /**
1170      * Change the expiration timer for a contact
1171      */
1172     public void setExpirationTimer(
1173             String number, int messageExpirationTimer
1174     ) throws IOException, InvalidNumberException {
1175         var recipientId = canonicalizeAndResolveRecipient(number);
1176         setExpirationTimer(recipientId, messageExpirationTimer);
1177         sendExpirationTimerUpdate(recipientId);
1178     }
1179
1180     /**
1181      * Change the expiration timer for a group
1182      */
1183     public void setExpirationTimer(GroupId groupId, int messageExpirationTimer) {
1184         var g = getGroup(groupId);
1185         if (g instanceof GroupInfoV1) {
1186             var groupInfoV1 = (GroupInfoV1) g;
1187             groupInfoV1.messageExpirationTime = messageExpirationTimer;
1188             account.getGroupStore().updateGroup(groupInfoV1);
1189         } else {
1190             throw new RuntimeException("TODO Not implemented!");
1191         }
1192     }
1193
1194     /**
1195      * Upload the sticker pack from path.
1196      *
1197      * @param path Path can be a path to a manifest.json file or to a zip file that contains a manifest.json file
1198      * @return if successful, returns the URL to install the sticker pack in the signal app
1199      */
1200     public String uploadStickerPack(File path) throws IOException, StickerPackInvalidException {
1201         var manifest = StickerUtils.getSignalServiceStickerManifestUpload(path);
1202
1203         var messageSender = createMessageSender();
1204
1205         var packKey = KeyUtils.createStickerUploadKey();
1206         var packId = messageSender.uploadStickerManifest(manifest, packKey);
1207
1208         var sticker = new Sticker(StickerPackId.deserialize(Hex.fromStringCondensed(packId)), packKey);
1209         account.getStickerStore().updateSticker(sticker);
1210
1211         try {
1212             return new URI("https",
1213                     "signal.art",
1214                     "/addstickers/",
1215                     "pack_id=" + URLEncoder.encode(packId, StandardCharsets.UTF_8) + "&pack_key=" + URLEncoder.encode(
1216                             Hex.toStringCondensed(packKey),
1217                             StandardCharsets.UTF_8)).toString();
1218         } catch (URISyntaxException e) {
1219             throw new AssertionError(e);
1220         }
1221     }
1222
1223     public void requestAllSyncData() throws IOException {
1224         requestSyncGroups();
1225         requestSyncContacts();
1226         requestSyncBlocked();
1227         requestSyncConfiguration();
1228         requestSyncKeys();
1229     }
1230
1231     private void requestSyncGroups() throws IOException {
1232         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1233                 .setType(SignalServiceProtos.SyncMessage.Request.Type.GROUPS)
1234                 .build();
1235         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1236         try {
1237             sendSyncMessage(message);
1238         } catch (UntrustedIdentityException e) {
1239             throw new AssertionError(e);
1240         }
1241     }
1242
1243     private void requestSyncContacts() throws IOException {
1244         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1245                 .setType(SignalServiceProtos.SyncMessage.Request.Type.CONTACTS)
1246                 .build();
1247         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1248         try {
1249             sendSyncMessage(message);
1250         } catch (UntrustedIdentityException e) {
1251             throw new AssertionError(e);
1252         }
1253     }
1254
1255     private void requestSyncBlocked() throws IOException {
1256         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1257                 .setType(SignalServiceProtos.SyncMessage.Request.Type.BLOCKED)
1258                 .build();
1259         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1260         try {
1261             sendSyncMessage(message);
1262         } catch (UntrustedIdentityException e) {
1263             throw new AssertionError(e);
1264         }
1265     }
1266
1267     private void requestSyncConfiguration() throws IOException {
1268         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1269                 .setType(SignalServiceProtos.SyncMessage.Request.Type.CONFIGURATION)
1270                 .build();
1271         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1272         try {
1273             sendSyncMessage(message);
1274         } catch (UntrustedIdentityException e) {
1275             throw new AssertionError(e);
1276         }
1277     }
1278
1279     private void requestSyncKeys() throws IOException {
1280         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1281                 .setType(SignalServiceProtos.SyncMessage.Request.Type.KEYS)
1282                 .build();
1283         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1284         try {
1285             sendSyncMessage(message);
1286         } catch (UntrustedIdentityException e) {
1287             throw new AssertionError(e);
1288         }
1289     }
1290
1291     private byte[] getSenderCertificate() {
1292         byte[] certificate;
1293         try {
1294             if (account.isPhoneNumberShared()) {
1295                 certificate = accountManager.getSenderCertificate();
1296             } else {
1297                 certificate = accountManager.getSenderCertificateForPhoneNumberPrivacy();
1298             }
1299         } catch (IOException e) {
1300             logger.warn("Failed to get sender certificate, ignoring: {}", e.getMessage());
1301             return null;
1302         }
1303         // TODO cache for a day
1304         return certificate;
1305     }
1306
1307     private void sendSyncMessage(SignalServiceSyncMessage message) throws IOException, UntrustedIdentityException {
1308         var messageSender = createMessageSender();
1309         messageSender.sendMessage(message, unidentifiedAccessHelper.getAccessForSync());
1310     }
1311
1312     private Set<RecipientId> getSignalServiceAddresses(Collection<String> numbers) throws InvalidNumberException {
1313         final var signalServiceAddresses = new HashSet<SignalServiceAddress>(numbers.size());
1314         final var addressesMissingUuid = new HashSet<SignalServiceAddress>();
1315
1316         for (var number : numbers) {
1317             final var resolvedAddress = resolveSignalServiceAddress(canonicalizeAndResolveRecipient(number));
1318             if (resolvedAddress.getUuid().isPresent()) {
1319                 signalServiceAddresses.add(resolvedAddress);
1320             } else {
1321                 addressesMissingUuid.add(resolvedAddress);
1322             }
1323         }
1324
1325         final var numbersMissingUuid = addressesMissingUuid.stream()
1326                 .map(a -> a.getNumber().get())
1327                 .collect(Collectors.toSet());
1328         Map<String, UUID> registeredUsers;
1329         try {
1330             registeredUsers = getRegisteredUsers(numbersMissingUuid);
1331         } catch (IOException e) {
1332             logger.warn("Failed to resolve uuids from server, ignoring: {}", e.getMessage());
1333             registeredUsers = Map.of();
1334         }
1335
1336         for (var address : addressesMissingUuid) {
1337             final var number = address.getNumber().get();
1338             if (registeredUsers.containsKey(number)) {
1339                 final var newAddress = resolveSignalServiceAddress(resolveRecipientTrusted(new SignalServiceAddress(
1340                         registeredUsers.get(number),
1341                         number)));
1342                 signalServiceAddresses.add(newAddress);
1343             } else {
1344                 signalServiceAddresses.add(address);
1345             }
1346         }
1347
1348         return signalServiceAddresses.stream().map(this::resolveRecipient).collect(Collectors.toSet());
1349     }
1350
1351     private RecipientId refreshRegisteredUser(RecipientId recipientId) throws IOException {
1352         final var address = resolveSignalServiceAddress(recipientId);
1353         if (!address.getNumber().isPresent()) {
1354             return recipientId;
1355         }
1356         final var number = address.getNumber().get();
1357         final var uuidMap = getRegisteredUsers(Set.of(number));
1358         return resolveRecipientTrusted(new SignalServiceAddress(uuidMap.getOrDefault(number, null), number));
1359     }
1360
1361     private Map<String, UUID> getRegisteredUsers(final Set<String> numbers) throws IOException {
1362         try {
1363             return accountManager.getRegisteredUsers(ServiceConfig.getIasKeyStore(),
1364                     numbers,
1365                     serviceEnvironmentConfig.getCdsMrenclave());
1366         } catch (Quote.InvalidQuoteFormatException | UnauthenticatedQuoteException | SignatureException | UnauthenticatedResponseException | InvalidKeyException e) {
1367             throw new IOException(e);
1368         }
1369     }
1370
1371     private Pair<Long, List<SendMessageResult>> sendMessage(
1372             SignalServiceDataMessage.Builder messageBuilder, Set<RecipientId> recipientIds
1373     ) throws IOException {
1374         final var timestamp = System.currentTimeMillis();
1375         messageBuilder.withTimestamp(timestamp);
1376         getOrCreateMessagePipe();
1377         getOrCreateUnidentifiedMessagePipe();
1378         SignalServiceDataMessage message = null;
1379         try {
1380             message = messageBuilder.build();
1381             if (message.getGroupContext().isPresent()) {
1382                 try {
1383                     var messageSender = createMessageSender();
1384                     final var isRecipientUpdate = false;
1385                     final var recipientIdList = new ArrayList<>(recipientIds);
1386                     final var addresses = recipientIdList.stream()
1387                             .map(this::resolveSignalServiceAddress)
1388                             .collect(Collectors.toList());
1389                     var result = messageSender.sendMessage(addresses,
1390                             unidentifiedAccessHelper.getAccessFor(recipientIdList),
1391                             isRecipientUpdate,
1392                             message);
1393
1394                     for (var r : result) {
1395                         if (r.getIdentityFailure() != null) {
1396                             final var recipientId = resolveRecipient(r.getAddress());
1397                             final var newIdentity = account.getIdentityKeyStore()
1398                                     .saveIdentity(recipientId, r.getIdentityFailure().getIdentityKey(), new Date());
1399                             if (newIdentity) {
1400                                 account.getSessionStore().archiveSessions(recipientId);
1401                             }
1402                         }
1403                     }
1404
1405                     return new Pair<>(timestamp, result);
1406                 } catch (UntrustedIdentityException e) {
1407                     return new Pair<>(timestamp, List.of());
1408                 }
1409             } else {
1410                 // Send to all individually, so sync messages are sent correctly
1411                 messageBuilder.withProfileKey(account.getProfileKey().serialize());
1412                 var results = new ArrayList<SendMessageResult>(recipientIds.size());
1413                 for (var recipientId : recipientIds) {
1414                     final var contact = account.getContactStore().getContact(recipientId);
1415                     final var expirationTime = contact != null ? contact.getMessageExpirationTime() : 0;
1416                     messageBuilder.withExpiration(expirationTime);
1417                     message = messageBuilder.build();
1418                     results.add(sendMessage(recipientId, message));
1419                 }
1420                 return new Pair<>(timestamp, results);
1421             }
1422         } finally {
1423             if (message != null && message.isEndSession()) {
1424                 for (var recipient : recipientIds) {
1425                     handleEndSession(recipient);
1426                 }
1427             }
1428         }
1429     }
1430
1431     private Pair<Long, SendMessageResult> sendSelfMessage(
1432             SignalServiceDataMessage.Builder messageBuilder
1433     ) throws IOException {
1434         final var timestamp = System.currentTimeMillis();
1435         messageBuilder.withTimestamp(timestamp);
1436         getOrCreateMessagePipe();
1437         getOrCreateUnidentifiedMessagePipe();
1438         final var recipientId = account.getSelfRecipientId();
1439
1440         final var contact = account.getContactStore().getContact(recipientId);
1441         final var expirationTime = contact != null ? contact.getMessageExpirationTime() : 0;
1442         messageBuilder.withExpiration(expirationTime);
1443
1444         var message = messageBuilder.build();
1445         final var result = sendSelfMessage(message);
1446         return new Pair<>(timestamp, result);
1447     }
1448
1449     private SendMessageResult sendSelfMessage(SignalServiceDataMessage message) throws IOException {
1450         var messageSender = createMessageSender();
1451
1452         var recipientId = account.getSelfRecipientId();
1453
1454         final var unidentifiedAccess = unidentifiedAccessHelper.getAccessFor(recipientId);
1455         var recipient = resolveSignalServiceAddress(recipientId);
1456         var transcript = new SentTranscriptMessage(Optional.of(recipient),
1457                 message.getTimestamp(),
1458                 message,
1459                 message.getExpiresInSeconds(),
1460                 Map.of(recipient, unidentifiedAccess.isPresent()),
1461                 false);
1462         var syncMessage = SignalServiceSyncMessage.forSentTranscript(transcript);
1463
1464         try {
1465             var startTime = System.currentTimeMillis();
1466             messageSender.sendMessage(syncMessage, unidentifiedAccess);
1467             return SendMessageResult.success(recipient,
1468                     unidentifiedAccess.isPresent(),
1469                     false,
1470                     System.currentTimeMillis() - startTime);
1471         } catch (UntrustedIdentityException e) {
1472             return SendMessageResult.identityFailure(recipient, e.getIdentityKey());
1473         }
1474     }
1475
1476     private SendMessageResult sendMessage(
1477             RecipientId recipientId, SignalServiceDataMessage message
1478     ) throws IOException {
1479         var messageSender = createMessageSender();
1480
1481         final var address = resolveSignalServiceAddress(recipientId);
1482         try {
1483             try {
1484                 return messageSender.sendMessage(address, unidentifiedAccessHelper.getAccessFor(recipientId), message);
1485             } catch (UnregisteredUserException e) {
1486                 final var newRecipientId = refreshRegisteredUser(recipientId);
1487                 return messageSender.sendMessage(resolveSignalServiceAddress(newRecipientId),
1488                         unidentifiedAccessHelper.getAccessFor(newRecipientId),
1489                         message);
1490             }
1491         } catch (UntrustedIdentityException e) {
1492             return SendMessageResult.identityFailure(address, e.getIdentityKey());
1493         }
1494     }
1495
1496     private SendMessageResult sendNullMessage(RecipientId recipientId) throws IOException {
1497         var messageSender = createMessageSender();
1498
1499         final var address = resolveSignalServiceAddress(recipientId);
1500         try {
1501             try {
1502                 return messageSender.sendNullMessage(address, unidentifiedAccessHelper.getAccessFor(recipientId));
1503             } catch (UnregisteredUserException e) {
1504                 final var newRecipientId = refreshRegisteredUser(recipientId);
1505                 final var newAddress = resolveSignalServiceAddress(newRecipientId);
1506                 return messageSender.sendNullMessage(newAddress, unidentifiedAccessHelper.getAccessFor(newRecipientId));
1507             }
1508         } catch (UntrustedIdentityException e) {
1509             return SendMessageResult.identityFailure(address, e.getIdentityKey());
1510         }
1511     }
1512
1513     private SignalServiceContent decryptMessage(SignalServiceEnvelope envelope) throws InvalidMetadataMessageException, ProtocolInvalidMessageException, ProtocolDuplicateMessageException, ProtocolLegacyMessageException, ProtocolInvalidKeyIdException, InvalidMetadataVersionException, ProtocolInvalidVersionException, ProtocolNoSessionException, ProtocolInvalidKeyException, SelfSendException, UnsupportedDataMessageException, org.whispersystems.libsignal.UntrustedIdentityException {
1514         var cipher = new SignalServiceCipher(account.getSelfAddress(),
1515                 account.getSignalProtocolStore(),
1516                 certificateValidator);
1517         try {
1518             return cipher.decrypt(envelope);
1519         } catch (ProtocolUntrustedIdentityException e) {
1520             if (e.getCause() instanceof org.whispersystems.libsignal.UntrustedIdentityException) {
1521                 throw (org.whispersystems.libsignal.UntrustedIdentityException) e.getCause();
1522             }
1523             throw new AssertionError(e);
1524         }
1525     }
1526
1527     private void handleEndSession(RecipientId recipientId) {
1528         account.getSessionStore().deleteAllSessions(recipientId);
1529     }
1530
1531     private List<HandleAction> handleSignalServiceDataMessage(
1532             SignalServiceDataMessage message,
1533             boolean isSync,
1534             SignalServiceAddress source,
1535             SignalServiceAddress destination,
1536             boolean ignoreAttachments
1537     ) {
1538         var actions = new ArrayList<HandleAction>();
1539         if (message.getGroupContext().isPresent()) {
1540             if (message.getGroupContext().get().getGroupV1().isPresent()) {
1541                 var groupInfo = message.getGroupContext().get().getGroupV1().get();
1542                 var groupId = GroupId.v1(groupInfo.getGroupId());
1543                 var group = getGroup(groupId);
1544                 if (group == null || group instanceof GroupInfoV1) {
1545                     var groupV1 = (GroupInfoV1) group;
1546                     switch (groupInfo.getType()) {
1547                         case UPDATE: {
1548                             if (groupV1 == null) {
1549                                 groupV1 = new GroupInfoV1(groupId);
1550                             }
1551
1552                             if (groupInfo.getAvatar().isPresent()) {
1553                                 var avatar = groupInfo.getAvatar().get();
1554                                 downloadGroupAvatar(avatar, groupV1.getGroupId());
1555                             }
1556
1557                             if (groupInfo.getName().isPresent()) {
1558                                 groupV1.name = groupInfo.getName().get();
1559                             }
1560
1561                             if (groupInfo.getMembers().isPresent()) {
1562                                 groupV1.addMembers(groupInfo.getMembers()
1563                                         .get()
1564                                         .stream()
1565                                         .map(this::resolveRecipient)
1566                                         .collect(Collectors.toSet()));
1567                             }
1568
1569                             account.getGroupStore().updateGroup(groupV1);
1570                             break;
1571                         }
1572                         case DELIVER:
1573                             if (groupV1 == null && !isSync) {
1574                                 actions.add(new SendGroupInfoRequestAction(source, groupId));
1575                             }
1576                             break;
1577                         case QUIT: {
1578                             if (groupV1 != null) {
1579                                 groupV1.removeMember(resolveRecipient(source));
1580                                 account.getGroupStore().updateGroup(groupV1);
1581                             }
1582                             break;
1583                         }
1584                         case REQUEST_INFO:
1585                             if (groupV1 != null && !isSync) {
1586                                 actions.add(new SendGroupInfoAction(source, groupV1.getGroupId()));
1587                             }
1588                             break;
1589                     }
1590                 } else {
1591                     // Received a group v1 message for a v2 group
1592                 }
1593             }
1594             if (message.getGroupContext().get().getGroupV2().isPresent()) {
1595                 final var groupContext = message.getGroupContext().get().getGroupV2().get();
1596                 final var groupMasterKey = groupContext.getMasterKey();
1597
1598                 getOrMigrateGroup(groupMasterKey,
1599                         groupContext.getRevision(),
1600                         groupContext.hasSignedGroupChange() ? groupContext.getSignedGroupChange() : null);
1601             }
1602         }
1603
1604         final var conversationPartnerAddress = isSync ? destination : source;
1605         if (conversationPartnerAddress != null && message.isEndSession()) {
1606             handleEndSession(resolveRecipient(conversationPartnerAddress));
1607         }
1608         if (message.isExpirationUpdate() || message.getBody().isPresent()) {
1609             if (message.getGroupContext().isPresent()) {
1610                 if (message.getGroupContext().get().getGroupV1().isPresent()) {
1611                     var groupInfo = message.getGroupContext().get().getGroupV1().get();
1612                     var group = account.getGroupStore().getOrCreateGroupV1(GroupId.v1(groupInfo.getGroupId()));
1613                     if (group != null) {
1614                         if (group.messageExpirationTime != message.getExpiresInSeconds()) {
1615                             group.messageExpirationTime = message.getExpiresInSeconds();
1616                             account.getGroupStore().updateGroup(group);
1617                         }
1618                     }
1619                 } else if (message.getGroupContext().get().getGroupV2().isPresent()) {
1620                     // disappearing message timer already stored in the DecryptedGroup
1621                 }
1622             } else if (conversationPartnerAddress != null) {
1623                 setExpirationTimer(resolveRecipient(conversationPartnerAddress), message.getExpiresInSeconds());
1624             }
1625         }
1626         if (!ignoreAttachments) {
1627             if (message.getAttachments().isPresent()) {
1628                 for (var attachment : message.getAttachments().get()) {
1629                     downloadAttachment(attachment);
1630                 }
1631             }
1632             if (message.getSharedContacts().isPresent()) {
1633                 for (var contact : message.getSharedContacts().get()) {
1634                     if (contact.getAvatar().isPresent()) {
1635                         downloadAttachment(contact.getAvatar().get().getAttachment());
1636                     }
1637                 }
1638             }
1639         }
1640         if (message.getProfileKey().isPresent() && message.getProfileKey().get().length == 32) {
1641             final ProfileKey profileKey;
1642             try {
1643                 profileKey = new ProfileKey(message.getProfileKey().get());
1644             } catch (InvalidInputException e) {
1645                 throw new AssertionError(e);
1646             }
1647             if (source.matches(account.getSelfAddress())) {
1648                 this.account.setProfileKey(profileKey);
1649             }
1650             this.account.getProfileStore().storeProfileKey(resolveRecipient(source), profileKey);
1651         }
1652         if (message.getPreviews().isPresent()) {
1653             final var previews = message.getPreviews().get();
1654             for (var preview : previews) {
1655                 if (preview.getImage().isPresent()) {
1656                     downloadAttachment(preview.getImage().get());
1657                 }
1658             }
1659         }
1660         if (message.getQuote().isPresent()) {
1661             final var quote = message.getQuote().get();
1662
1663             for (var quotedAttachment : quote.getAttachments()) {
1664                 final var thumbnail = quotedAttachment.getThumbnail();
1665                 if (thumbnail != null) {
1666                     downloadAttachment(thumbnail);
1667                 }
1668             }
1669         }
1670         if (message.getSticker().isPresent()) {
1671             final var messageSticker = message.getSticker().get();
1672             final var stickerPackId = StickerPackId.deserialize(messageSticker.getPackId());
1673             var sticker = account.getStickerStore().getSticker(stickerPackId);
1674             if (sticker == null) {
1675                 sticker = new Sticker(stickerPackId, messageSticker.getPackKey());
1676                 account.getStickerStore().updateSticker(sticker);
1677             }
1678         }
1679         return actions;
1680     }
1681
1682     private GroupInfoV2 getOrMigrateGroup(
1683             final GroupMasterKey groupMasterKey, final int revision, final byte[] signedGroupChange
1684     ) {
1685         final var groupSecretParams = GroupSecretParams.deriveFromMasterKey(groupMasterKey);
1686
1687         var groupId = GroupUtils.getGroupIdV2(groupSecretParams);
1688         var groupInfo = getGroup(groupId);
1689         final GroupInfoV2 groupInfoV2;
1690         if (groupInfo instanceof GroupInfoV1) {
1691             // Received a v2 group message for a v1 group, we need to locally migrate the group
1692             account.getGroupStore().deleteGroupV1(((GroupInfoV1) groupInfo).getGroupId());
1693             groupInfoV2 = new GroupInfoV2(groupId, groupMasterKey);
1694             logger.info("Locally migrated group {} to group v2, id: {}",
1695                     groupInfo.getGroupId().toBase64(),
1696                     groupInfoV2.getGroupId().toBase64());
1697         } else if (groupInfo instanceof GroupInfoV2) {
1698             groupInfoV2 = (GroupInfoV2) groupInfo;
1699         } else {
1700             groupInfoV2 = new GroupInfoV2(groupId, groupMasterKey);
1701         }
1702
1703         if (groupInfoV2.getGroup() == null || groupInfoV2.getGroup().getRevision() < revision) {
1704             DecryptedGroup group = null;
1705             if (signedGroupChange != null
1706                     && groupInfoV2.getGroup() != null
1707                     && groupInfoV2.getGroup().getRevision() + 1 == revision) {
1708                 group = groupHelper.getUpdatedDecryptedGroup(groupInfoV2.getGroup(), signedGroupChange, groupMasterKey);
1709             }
1710             if (group == null) {
1711                 group = groupHelper.getDecryptedGroup(groupSecretParams);
1712             }
1713             if (group != null) {
1714                 storeProfileKeysFromMembers(group);
1715                 final var avatar = group.getAvatar();
1716                 if (avatar != null && !avatar.isEmpty()) {
1717                     downloadGroupAvatar(groupId, groupSecretParams, avatar);
1718                 }
1719             }
1720             groupInfoV2.setGroup(group, this::resolveRecipient);
1721             account.getGroupStore().updateGroup(groupInfoV2);
1722         }
1723
1724         return groupInfoV2;
1725     }
1726
1727     private void storeProfileKeysFromMembers(final DecryptedGroup group) {
1728         for (var member : group.getMembersList()) {
1729             final var uuid = UuidUtil.parseOrThrow(member.getUuid().toByteArray());
1730             final var recipientId = account.getRecipientStore().resolveRecipient(uuid);
1731             try {
1732                 account.getProfileStore()
1733                         .storeProfileKey(recipientId, new ProfileKey(member.getProfileKey().toByteArray()));
1734             } catch (InvalidInputException ignored) {
1735             }
1736         }
1737     }
1738
1739     private void retryFailedReceivedMessages(ReceiveMessageHandler handler, boolean ignoreAttachments) {
1740         Set<HandleAction> queuedActions = new HashSet<>();
1741         for (var cachedMessage : account.getMessageCache().getCachedMessages()) {
1742             var actions = retryFailedReceivedMessage(handler, ignoreAttachments, cachedMessage);
1743             if (actions != null) {
1744                 queuedActions.addAll(actions);
1745             }
1746         }
1747         for (var action : queuedActions) {
1748             try {
1749                 action.execute(this);
1750             } catch (Throwable e) {
1751                 logger.warn("Message action failed.", e);
1752             }
1753         }
1754     }
1755
1756     private List<HandleAction> retryFailedReceivedMessage(
1757             final ReceiveMessageHandler handler, final boolean ignoreAttachments, final CachedMessage cachedMessage
1758     ) {
1759         var envelope = cachedMessage.loadEnvelope();
1760         if (envelope == null) {
1761             return null;
1762         }
1763         SignalServiceContent content = null;
1764         List<HandleAction> actions = null;
1765         if (!envelope.isReceipt()) {
1766             try {
1767                 content = decryptMessage(envelope);
1768             } catch (org.whispersystems.libsignal.UntrustedIdentityException e) {
1769                 if (!envelope.hasSource()) {
1770                     final var identifier = ((org.whispersystems.libsignal.UntrustedIdentityException) e).getName();
1771                     final var recipientId = resolveRecipient(identifier);
1772                     try {
1773                         account.getMessageCache().replaceSender(cachedMessage, recipientId);
1774                     } catch (IOException ioException) {
1775                         logger.warn("Failed to move cached message to recipient folder: {}", ioException.getMessage());
1776                     }
1777                 }
1778                 return null;
1779             } catch (Exception er) {
1780                 // All other errors are not recoverable, so delete the cached message
1781                 cachedMessage.delete();
1782                 return null;
1783             }
1784             actions = handleMessage(envelope, content, ignoreAttachments);
1785         }
1786         handler.handleMessage(envelope, content, null);
1787         cachedMessage.delete();
1788         return actions;
1789     }
1790
1791     public void receiveMessages(
1792             long timeout,
1793             TimeUnit unit,
1794             boolean returnOnTimeout,
1795             boolean ignoreAttachments,
1796             ReceiveMessageHandler handler
1797     ) throws IOException {
1798         retryFailedReceivedMessages(handler, ignoreAttachments);
1799
1800         Set<HandleAction> queuedActions = null;
1801
1802         final var messagePipe = getOrCreateMessagePipe();
1803
1804         var hasCaughtUpWithOldMessages = false;
1805
1806         while (true) {
1807             SignalServiceEnvelope envelope;
1808             SignalServiceContent content = null;
1809             Exception exception = null;
1810             final CachedMessage[] cachedMessage = {null};
1811             try {
1812                 var result = messagePipe.readOrEmpty(timeout, unit, envelope1 -> {
1813                     final var recipientId = envelope1.hasSource()
1814                             ? resolveRecipient(envelope1.getSourceIdentifier())
1815                             : null;
1816                     // store message on disk, before acknowledging receipt to the server
1817                     cachedMessage[0] = account.getMessageCache().cacheMessage(envelope1, recipientId);
1818                 });
1819                 if (result.isPresent()) {
1820                     envelope = result.get();
1821                 } else {
1822                     // Received indicator that server queue is empty
1823                     hasCaughtUpWithOldMessages = true;
1824
1825                     if (queuedActions != null) {
1826                         for (var action : queuedActions) {
1827                             try {
1828                                 action.execute(this);
1829                             } catch (Throwable e) {
1830                                 logger.warn("Message action failed.", e);
1831                             }
1832                         }
1833                         queuedActions.clear();
1834                         queuedActions = null;
1835                     }
1836
1837                     // Continue to wait another timeout for new messages
1838                     continue;
1839                 }
1840             } catch (TimeoutException e) {
1841                 if (returnOnTimeout) return;
1842                 continue;
1843             }
1844
1845             if (envelope.hasSource()) {
1846                 // Store uuid if we don't have it already
1847                 // address/uuid in envelope is sent by server
1848                 resolveRecipientTrusted(envelope.getSourceAddress());
1849             }
1850             final var notAGroupMember = isNotAGroupMember(envelope, content);
1851             if (!envelope.isReceipt()) {
1852                 try {
1853                     content = decryptMessage(envelope);
1854                 } catch (Exception e) {
1855                     exception = e;
1856                 }
1857                 if (!envelope.hasSource() && content != null) {
1858                     // Store uuid if we don't have it already
1859                     // address/uuid is validated by unidentified sender certificate
1860                     resolveRecipientTrusted(content.getSender());
1861                 }
1862                 var actions = handleMessage(envelope, content, ignoreAttachments);
1863                 if (exception instanceof ProtocolInvalidMessageException) {
1864                     final var sender = resolveRecipient(((ProtocolInvalidMessageException) exception).getSender());
1865                     logger.debug("Received invalid message, queuing renew session action.");
1866                     actions.add(new RenewSessionAction(sender));
1867                 }
1868                 if (hasCaughtUpWithOldMessages) {
1869                     for (var action : actions) {
1870                         try {
1871                             action.execute(this);
1872                         } catch (Throwable e) {
1873                             logger.warn("Message action failed.", e);
1874                         }
1875                     }
1876                 } else {
1877                     if (queuedActions == null) {
1878                         queuedActions = new HashSet<>();
1879                     }
1880                     queuedActions.addAll(actions);
1881                 }
1882             }
1883             if (isMessageBlocked(envelope, content)) {
1884                 logger.info("Ignoring a message from blocked user/group: {}", envelope.getTimestamp());
1885             } else if (notAGroupMember) {
1886                 logger.info("Ignoring a message from a non group member: {}", envelope.getTimestamp());
1887             } else {
1888                 handler.handleMessage(envelope, content, exception);
1889             }
1890             if (cachedMessage[0] != null) {
1891                 if (exception instanceof org.whispersystems.libsignal.UntrustedIdentityException) {
1892                     final var identifier = ((org.whispersystems.libsignal.UntrustedIdentityException) exception).getName();
1893                     final var recipientId = resolveRecipient(identifier);
1894                     queuedActions.add(new RetrieveProfileAction(recipientId));
1895                     if (!envelope.hasSource()) {
1896                         try {
1897                             cachedMessage[0] = account.getMessageCache().replaceSender(cachedMessage[0], recipientId);
1898                         } catch (IOException ioException) {
1899                             logger.warn("Failed to move cached message to recipient folder: {}",
1900                                     ioException.getMessage());
1901                         }
1902                     }
1903                 } else {
1904                     cachedMessage[0].delete();
1905                 }
1906             }
1907         }
1908     }
1909
1910     private boolean isMessageBlocked(
1911             SignalServiceEnvelope envelope, SignalServiceContent content
1912     ) {
1913         SignalServiceAddress source;
1914         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1915             source = envelope.getSourceAddress();
1916         } else if (content != null) {
1917             source = content.getSender();
1918         } else {
1919             return false;
1920         }
1921         final var recipientId = resolveRecipient(source);
1922         if (isContactBlocked(recipientId)) {
1923             return true;
1924         }
1925
1926         if (content != null && content.getDataMessage().isPresent()) {
1927             var message = content.getDataMessage().get();
1928             if (message.getGroupContext().isPresent()) {
1929                 var groupId = GroupUtils.getGroupId(message.getGroupContext().get());
1930                 var group = getGroup(groupId);
1931                 if (group != null && group.isBlocked()) {
1932                     return true;
1933                 }
1934             }
1935         }
1936         return false;
1937     }
1938
1939     public boolean isContactBlocked(final String identifier) throws InvalidNumberException {
1940         final var recipientId = canonicalizeAndResolveRecipient(identifier);
1941         return isContactBlocked(recipientId);
1942     }
1943
1944     private boolean isContactBlocked(final RecipientId recipientId) {
1945         var sourceContact = account.getContactStore().getContact(recipientId);
1946         return sourceContact != null && sourceContact.isBlocked();
1947     }
1948
1949     private boolean isNotAGroupMember(
1950             SignalServiceEnvelope envelope, SignalServiceContent content
1951     ) {
1952         SignalServiceAddress source;
1953         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1954             source = envelope.getSourceAddress();
1955         } else if (content != null) {
1956             source = content.getSender();
1957         } else {
1958             return false;
1959         }
1960
1961         if (content != null && content.getDataMessage().isPresent()) {
1962             var message = content.getDataMessage().get();
1963             if (message.getGroupContext().isPresent()) {
1964                 if (message.getGroupContext().get().getGroupV1().isPresent()) {
1965                     var groupInfo = message.getGroupContext().get().getGroupV1().get();
1966                     if (groupInfo.getType() == SignalServiceGroup.Type.QUIT) {
1967                         return false;
1968                     }
1969                 }
1970                 var groupId = GroupUtils.getGroupId(message.getGroupContext().get());
1971                 var group = getGroup(groupId);
1972                 if (group != null && !group.isMember(resolveRecipient(source))) {
1973                     return true;
1974                 }
1975             }
1976         }
1977         return false;
1978     }
1979
1980     private List<HandleAction> handleMessage(
1981             SignalServiceEnvelope envelope, SignalServiceContent content, boolean ignoreAttachments
1982     ) {
1983         var actions = new ArrayList<HandleAction>();
1984         if (content != null) {
1985             final SignalServiceAddress sender;
1986             if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1987                 sender = envelope.getSourceAddress();
1988             } else {
1989                 sender = content.getSender();
1990             }
1991
1992             if (content.getDataMessage().isPresent()) {
1993                 var message = content.getDataMessage().get();
1994
1995                 if (content.isNeedsReceipt()) {
1996                     actions.add(new SendReceiptAction(sender, message.getTimestamp()));
1997                 }
1998
1999                 actions.addAll(handleSignalServiceDataMessage(message,
2000                         false,
2001                         sender,
2002                         account.getSelfAddress(),
2003                         ignoreAttachments));
2004             }
2005             if (content.getSyncMessage().isPresent()) {
2006                 account.setMultiDevice(true);
2007                 var syncMessage = content.getSyncMessage().get();
2008                 if (syncMessage.getSent().isPresent()) {
2009                     var message = syncMessage.getSent().get();
2010                     final var destination = message.getDestination().orNull();
2011                     actions.addAll(handleSignalServiceDataMessage(message.getMessage(),
2012                             true,
2013                             sender,
2014                             destination,
2015                             ignoreAttachments));
2016                 }
2017                 if (syncMessage.getRequest().isPresent() && account.isMasterDevice()) {
2018                     var rm = syncMessage.getRequest().get();
2019                     if (rm.isContactsRequest()) {
2020                         actions.add(SendSyncContactsAction.create());
2021                     }
2022                     if (rm.isGroupsRequest()) {
2023                         actions.add(SendSyncGroupsAction.create());
2024                     }
2025                     if (rm.isBlockedListRequest()) {
2026                         actions.add(SendSyncBlockedListAction.create());
2027                     }
2028                     // TODO Handle rm.isConfigurationRequest(); rm.isKeysRequest();
2029                 }
2030                 if (syncMessage.getGroups().isPresent()) {
2031                     File tmpFile = null;
2032                     try {
2033                         tmpFile = IOUtils.createTempFile();
2034                         final var groupsMessage = syncMessage.getGroups().get();
2035                         try (var attachmentAsStream = retrieveAttachmentAsStream(groupsMessage.asPointer(), tmpFile)) {
2036                             var s = new DeviceGroupsInputStream(attachmentAsStream);
2037                             DeviceGroup g;
2038                             while ((g = s.read()) != null) {
2039                                 var syncGroup = account.getGroupStore().getOrCreateGroupV1(GroupId.v1(g.getId()));
2040                                 if (syncGroup != null) {
2041                                     if (g.getName().isPresent()) {
2042                                         syncGroup.name = g.getName().get();
2043                                     }
2044                                     syncGroup.addMembers(g.getMembers()
2045                                             .stream()
2046                                             .map(this::resolveRecipient)
2047                                             .collect(Collectors.toSet()));
2048                                     if (!g.isActive()) {
2049                                         syncGroup.removeMember(account.getSelfRecipientId());
2050                                     } else {
2051                                         // Add ourself to the member set as it's marked as active
2052                                         syncGroup.addMembers(List.of(account.getSelfRecipientId()));
2053                                     }
2054                                     syncGroup.blocked = g.isBlocked();
2055                                     if (g.getColor().isPresent()) {
2056                                         syncGroup.color = g.getColor().get();
2057                                     }
2058
2059                                     if (g.getAvatar().isPresent()) {
2060                                         downloadGroupAvatar(g.getAvatar().get(), syncGroup.getGroupId());
2061                                     }
2062                                     syncGroup.archived = g.isArchived();
2063                                     account.getGroupStore().updateGroup(syncGroup);
2064                                 }
2065                             }
2066                         }
2067                     } catch (Exception e) {
2068                         logger.warn("Failed to handle received sync groups “{}”, ignoring: {}",
2069                                 tmpFile,
2070                                 e.getMessage());
2071                     } finally {
2072                         if (tmpFile != null) {
2073                             try {
2074                                 Files.delete(tmpFile.toPath());
2075                             } catch (IOException e) {
2076                                 logger.warn("Failed to delete received groups temp file “{}”, ignoring: {}",
2077                                         tmpFile,
2078                                         e.getMessage());
2079                             }
2080                         }
2081                     }
2082                 }
2083                 if (syncMessage.getBlockedList().isPresent()) {
2084                     final var blockedListMessage = syncMessage.getBlockedList().get();
2085                     for (var address : blockedListMessage.getAddresses()) {
2086                         setContactBlocked(resolveRecipient(address), true);
2087                     }
2088                     for (var groupId : blockedListMessage.getGroupIds()
2089                             .stream()
2090                             .map(GroupId::unknownVersion)
2091                             .collect(Collectors.toSet())) {
2092                         try {
2093                             setGroupBlocked(groupId, true);
2094                         } catch (GroupNotFoundException e) {
2095                             logger.warn("BlockedListMessage contained groupID that was not found in GroupStore: {}",
2096                                     groupId.toBase64());
2097                         }
2098                     }
2099                 }
2100                 if (syncMessage.getContacts().isPresent()) {
2101                     File tmpFile = null;
2102                     try {
2103                         tmpFile = IOUtils.createTempFile();
2104                         final var contactsMessage = syncMessage.getContacts().get();
2105                         try (var attachmentAsStream = retrieveAttachmentAsStream(contactsMessage.getContactsStream()
2106                                 .asPointer(), tmpFile)) {
2107                             var s = new DeviceContactsInputStream(attachmentAsStream);
2108                             DeviceContact c;
2109                             while ((c = s.read()) != null) {
2110                                 if (c.getAddress().matches(account.getSelfAddress()) && c.getProfileKey().isPresent()) {
2111                                     account.setProfileKey(c.getProfileKey().get());
2112                                 }
2113                                 final var recipientId = resolveRecipientTrusted(c.getAddress());
2114                                 var contact = account.getContactStore().getContact(recipientId);
2115                                 final var builder = contact == null
2116                                         ? Contact.newBuilder()
2117                                         : Contact.newBuilder(contact);
2118                                 if (c.getName().isPresent()) {
2119                                     builder.withName(c.getName().get());
2120                                 }
2121                                 if (c.getColor().isPresent()) {
2122                                     builder.withColor(c.getColor().get());
2123                                 }
2124                                 if (c.getProfileKey().isPresent()) {
2125                                     account.getProfileStore().storeProfileKey(recipientId, c.getProfileKey().get());
2126                                 }
2127                                 if (c.getVerified().isPresent()) {
2128                                     final var verifiedMessage = c.getVerified().get();
2129                                     account.getIdentityKeyStore()
2130                                             .setIdentityTrustLevel(resolveRecipientTrusted(verifiedMessage.getDestination()),
2131                                                     verifiedMessage.getIdentityKey(),
2132                                                     TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
2133                                 }
2134                                 if (c.getExpirationTimer().isPresent()) {
2135                                     builder.withMessageExpirationTime(c.getExpirationTimer().get());
2136                                 }
2137                                 builder.withBlocked(c.isBlocked());
2138                                 builder.withArchived(c.isArchived());
2139                                 account.getContactStore().storeContact(recipientId, builder.build());
2140
2141                                 if (c.getAvatar().isPresent()) {
2142                                     downloadContactAvatar(c.getAvatar().get(), c.getAddress());
2143                                 }
2144                             }
2145                         }
2146                     } catch (Exception e) {
2147                         logger.warn("Failed to handle received sync contacts “{}”, ignoring: {}",
2148                                 tmpFile,
2149                                 e.getMessage());
2150                     } finally {
2151                         if (tmpFile != null) {
2152                             try {
2153                                 Files.delete(tmpFile.toPath());
2154                             } catch (IOException e) {
2155                                 logger.warn("Failed to delete received contacts temp file “{}”, ignoring: {}",
2156                                         tmpFile,
2157                                         e.getMessage());
2158                             }
2159                         }
2160                     }
2161                 }
2162                 if (syncMessage.getVerified().isPresent()) {
2163                     final var verifiedMessage = syncMessage.getVerified().get();
2164                     account.getIdentityKeyStore()
2165                             .setIdentityTrustLevel(resolveRecipientTrusted(verifiedMessage.getDestination()),
2166                                     verifiedMessage.getIdentityKey(),
2167                                     TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
2168                 }
2169                 if (syncMessage.getStickerPackOperations().isPresent()) {
2170                     final var stickerPackOperationMessages = syncMessage.getStickerPackOperations().get();
2171                     for (var m : stickerPackOperationMessages) {
2172                         if (!m.getPackId().isPresent()) {
2173                             continue;
2174                         }
2175                         final var stickerPackId = StickerPackId.deserialize(m.getPackId().get());
2176                         var sticker = account.getStickerStore().getSticker(stickerPackId);
2177                         if (sticker == null) {
2178                             if (!m.getPackKey().isPresent()) {
2179                                 continue;
2180                             }
2181                             sticker = new Sticker(stickerPackId, m.getPackKey().get());
2182                         }
2183                         sticker.setInstalled(!m.getType().isPresent()
2184                                 || m.getType().get() == StickerPackOperationMessage.Type.INSTALL);
2185                         account.getStickerStore().updateSticker(sticker);
2186                     }
2187                 }
2188                 if (syncMessage.getFetchType().isPresent()) {
2189                     switch (syncMessage.getFetchType().get()) {
2190                         case LOCAL_PROFILE:
2191                             getRecipientProfile(account.getSelfRecipientId(), true);
2192                         case STORAGE_MANIFEST:
2193                             // TODO
2194                     }
2195                 }
2196                 if (syncMessage.getKeys().isPresent()) {
2197                     final var keysMessage = syncMessage.getKeys().get();
2198                     if (keysMessage.getStorageService().isPresent()) {
2199                         final var storageKey = keysMessage.getStorageService().get();
2200                         account.setStorageKey(storageKey);
2201                     }
2202                 }
2203                 if (syncMessage.getConfiguration().isPresent()) {
2204                     // TODO
2205                 }
2206             }
2207         }
2208         return actions;
2209     }
2210
2211     private void downloadContactAvatar(SignalServiceAttachment avatar, SignalServiceAddress address) {
2212         try {
2213             avatarStore.storeContactAvatar(address, outputStream -> retrieveAttachment(avatar, outputStream));
2214         } catch (IOException e) {
2215             logger.warn("Failed to download avatar for contact {}, ignoring: {}", address, e.getMessage());
2216         }
2217     }
2218
2219     private void downloadGroupAvatar(SignalServiceAttachment avatar, GroupId groupId) {
2220         try {
2221             avatarStore.storeGroupAvatar(groupId, outputStream -> retrieveAttachment(avatar, outputStream));
2222         } catch (IOException e) {
2223             logger.warn("Failed to download avatar for group {}, ignoring: {}", groupId.toBase64(), e.getMessage());
2224         }
2225     }
2226
2227     private void downloadGroupAvatar(GroupId groupId, GroupSecretParams groupSecretParams, String cdnKey) {
2228         try {
2229             avatarStore.storeGroupAvatar(groupId,
2230                     outputStream -> retrieveGroupV2Avatar(groupSecretParams, cdnKey, outputStream));
2231         } catch (IOException e) {
2232             logger.warn("Failed to download avatar for group {}, ignoring: {}", groupId.toBase64(), e.getMessage());
2233         }
2234     }
2235
2236     private void downloadProfileAvatar(
2237             SignalServiceAddress address, String avatarPath, ProfileKey profileKey
2238     ) {
2239         try {
2240             avatarStore.storeProfileAvatar(address,
2241                     outputStream -> retrieveProfileAvatar(avatarPath, profileKey, outputStream));
2242         } catch (Throwable e) {
2243             logger.warn("Failed to download profile avatar, ignoring: {}", e.getMessage());
2244         }
2245     }
2246
2247     public File getAttachmentFile(SignalServiceAttachmentRemoteId attachmentId) {
2248         return attachmentStore.getAttachmentFile(attachmentId);
2249     }
2250
2251     private void downloadAttachment(final SignalServiceAttachment attachment) {
2252         if (!attachment.isPointer()) {
2253             logger.warn("Invalid state, can't store an attachment stream.");
2254         }
2255
2256         var pointer = attachment.asPointer();
2257         if (pointer.getPreview().isPresent()) {
2258             final var preview = pointer.getPreview().get();
2259             try {
2260                 attachmentStore.storeAttachmentPreview(pointer.getRemoteId(),
2261                         outputStream -> outputStream.write(preview, 0, preview.length));
2262             } catch (IOException e) {
2263                 logger.warn("Failed to download attachment preview, ignoring: {}", e.getMessage());
2264             }
2265         }
2266
2267         try {
2268             attachmentStore.storeAttachment(pointer.getRemoteId(),
2269                     outputStream -> retrieveAttachmentPointer(pointer, outputStream));
2270         } catch (IOException e) {
2271             logger.warn("Failed to download attachment ({}), ignoring: {}", pointer.getRemoteId(), e.getMessage());
2272         }
2273     }
2274
2275     private void retrieveGroupV2Avatar(
2276             GroupSecretParams groupSecretParams, String cdnKey, OutputStream outputStream
2277     ) throws IOException {
2278         var groupOperations = groupsV2Operations.forGroup(groupSecretParams);
2279
2280         var tmpFile = IOUtils.createTempFile();
2281         try (InputStream input = messageReceiver.retrieveGroupsV2ProfileAvatar(cdnKey,
2282                 tmpFile,
2283                 ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
2284             var encryptedData = IOUtils.readFully(input);
2285
2286             var decryptedData = groupOperations.decryptAvatar(encryptedData);
2287             outputStream.write(decryptedData);
2288         } finally {
2289             try {
2290                 Files.delete(tmpFile.toPath());
2291             } catch (IOException e) {
2292                 logger.warn("Failed to delete received group avatar temp file “{}”, ignoring: {}",
2293                         tmpFile,
2294                         e.getMessage());
2295             }
2296         }
2297     }
2298
2299     private void retrieveProfileAvatar(
2300             String avatarPath, ProfileKey profileKey, OutputStream outputStream
2301     ) throws IOException {
2302         var tmpFile = IOUtils.createTempFile();
2303         try (var input = messageReceiver.retrieveProfileAvatar(avatarPath,
2304                 tmpFile,
2305                 profileKey,
2306                 ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
2307             // Use larger buffer size to prevent AssertionError: Need: 12272 but only have: 8192 ...
2308             IOUtils.copyStream(input, outputStream, (int) ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE);
2309         } finally {
2310             try {
2311                 Files.delete(tmpFile.toPath());
2312             } catch (IOException e) {
2313                 logger.warn("Failed to delete received profile avatar temp file “{}”, ignoring: {}",
2314                         tmpFile,
2315                         e.getMessage());
2316             }
2317         }
2318     }
2319
2320     private void retrieveAttachment(
2321             final SignalServiceAttachment attachment, final OutputStream outputStream
2322     ) throws IOException {
2323         if (attachment.isPointer()) {
2324             var pointer = attachment.asPointer();
2325             retrieveAttachmentPointer(pointer, outputStream);
2326         } else {
2327             var stream = attachment.asStream();
2328             IOUtils.copyStream(stream.getInputStream(), outputStream);
2329         }
2330     }
2331
2332     private void retrieveAttachmentPointer(
2333             SignalServiceAttachmentPointer pointer, OutputStream outputStream
2334     ) throws IOException {
2335         var tmpFile = IOUtils.createTempFile();
2336         try (var input = retrieveAttachmentAsStream(pointer, tmpFile)) {
2337             IOUtils.copyStream(input, outputStream);
2338         } catch (MissingConfigurationException | InvalidMessageException e) {
2339             throw new IOException(e);
2340         } finally {
2341             try {
2342                 Files.delete(tmpFile.toPath());
2343             } catch (IOException e) {
2344                 logger.warn("Failed to delete received attachment temp file “{}”, ignoring: {}",
2345                         tmpFile,
2346                         e.getMessage());
2347             }
2348         }
2349     }
2350
2351     private InputStream retrieveAttachmentAsStream(
2352             SignalServiceAttachmentPointer pointer, File tmpFile
2353     ) throws IOException, InvalidMessageException, MissingConfigurationException {
2354         return messageReceiver.retrieveAttachment(pointer, tmpFile, ServiceConfig.MAX_ATTACHMENT_SIZE);
2355     }
2356
2357     void sendGroups() throws IOException, UntrustedIdentityException {
2358         var groupsFile = IOUtils.createTempFile();
2359
2360         try {
2361             try (OutputStream fos = new FileOutputStream(groupsFile)) {
2362                 var out = new DeviceGroupsOutputStream(fos);
2363                 for (var record : getGroups()) {
2364                     if (record instanceof GroupInfoV1) {
2365                         var groupInfo = (GroupInfoV1) record;
2366                         out.write(new DeviceGroup(groupInfo.getGroupId().serialize(),
2367                                 Optional.fromNullable(groupInfo.name),
2368                                 groupInfo.getMembers()
2369                                         .stream()
2370                                         .map(this::resolveSignalServiceAddress)
2371                                         .collect(Collectors.toList()),
2372                                 createGroupAvatarAttachment(groupInfo.getGroupId()),
2373                                 groupInfo.isMember(account.getSelfRecipientId()),
2374                                 Optional.of(groupInfo.messageExpirationTime),
2375                                 Optional.fromNullable(groupInfo.color),
2376                                 groupInfo.blocked,
2377                                 Optional.absent(),
2378                                 groupInfo.archived));
2379                     }
2380                 }
2381             }
2382
2383             if (groupsFile.exists() && groupsFile.length() > 0) {
2384                 try (var groupsFileStream = new FileInputStream(groupsFile)) {
2385                     var attachmentStream = SignalServiceAttachment.newStreamBuilder()
2386                             .withStream(groupsFileStream)
2387                             .withContentType("application/octet-stream")
2388                             .withLength(groupsFile.length())
2389                             .build();
2390
2391                     sendSyncMessage(SignalServiceSyncMessage.forGroups(attachmentStream));
2392                 }
2393             }
2394         } finally {
2395             try {
2396                 Files.delete(groupsFile.toPath());
2397             } catch (IOException e) {
2398                 logger.warn("Failed to delete groups temp file “{}”, ignoring: {}", groupsFile, e.getMessage());
2399             }
2400         }
2401     }
2402
2403     public void sendContacts() throws IOException, UntrustedIdentityException {
2404         var contactsFile = IOUtils.createTempFile();
2405
2406         try {
2407             try (OutputStream fos = new FileOutputStream(contactsFile)) {
2408                 var out = new DeviceContactsOutputStream(fos);
2409                 for (var contactPair : account.getContactStore().getContacts()) {
2410                     final var recipientId = contactPair.first();
2411                     final var contact = contactPair.second();
2412                     final var address = resolveSignalServiceAddress(recipientId);
2413
2414                     var currentIdentity = account.getIdentityKeyStore().getIdentity(recipientId);
2415                     VerifiedMessage verifiedMessage = null;
2416                     if (currentIdentity != null) {
2417                         verifiedMessage = new VerifiedMessage(address,
2418                                 currentIdentity.getIdentityKey(),
2419                                 currentIdentity.getTrustLevel().toVerifiedState(),
2420                                 currentIdentity.getDateAdded().getTime());
2421                     }
2422
2423                     var profileKey = account.getProfileStore().getProfileKey(recipientId);
2424                     out.write(new DeviceContact(address,
2425                             Optional.fromNullable(contact.getName()),
2426                             createContactAvatarAttachment(address),
2427                             Optional.fromNullable(contact.getColor()),
2428                             Optional.fromNullable(verifiedMessage),
2429                             Optional.fromNullable(profileKey),
2430                             contact.isBlocked(),
2431                             Optional.of(contact.getMessageExpirationTime()),
2432                             Optional.absent(),
2433                             contact.isArchived()));
2434                 }
2435
2436                 if (account.getProfileKey() != null) {
2437                     // Send our own profile key as well
2438                     out.write(new DeviceContact(account.getSelfAddress(),
2439                             Optional.absent(),
2440                             Optional.absent(),
2441                             Optional.absent(),
2442                             Optional.absent(),
2443                             Optional.of(account.getProfileKey()),
2444                             false,
2445                             Optional.absent(),
2446                             Optional.absent(),
2447                             false));
2448                 }
2449             }
2450
2451             if (contactsFile.exists() && contactsFile.length() > 0) {
2452                 try (var contactsFileStream = new FileInputStream(contactsFile)) {
2453                     var attachmentStream = SignalServiceAttachment.newStreamBuilder()
2454                             .withStream(contactsFileStream)
2455                             .withContentType("application/octet-stream")
2456                             .withLength(contactsFile.length())
2457                             .build();
2458
2459                     sendSyncMessage(SignalServiceSyncMessage.forContacts(new ContactsMessage(attachmentStream, true)));
2460                 }
2461             }
2462         } finally {
2463             try {
2464                 Files.delete(contactsFile.toPath());
2465             } catch (IOException e) {
2466                 logger.warn("Failed to delete contacts temp file “{}”, ignoring: {}", contactsFile, e.getMessage());
2467             }
2468         }
2469     }
2470
2471     void sendBlockedList() throws IOException, UntrustedIdentityException {
2472         var addresses = new ArrayList<SignalServiceAddress>();
2473         for (var record : account.getContactStore().getContacts()) {
2474             if (record.second().isBlocked()) {
2475                 addresses.add(resolveSignalServiceAddress(record.first()));
2476             }
2477         }
2478         var groupIds = new ArrayList<byte[]>();
2479         for (var record : getGroups()) {
2480             if (record.isBlocked()) {
2481                 groupIds.add(record.getGroupId().serialize());
2482             }
2483         }
2484         sendSyncMessage(SignalServiceSyncMessage.forBlocked(new BlockedListMessage(addresses, groupIds)));
2485     }
2486
2487     private void sendVerifiedMessage(
2488             SignalServiceAddress destination, IdentityKey identityKey, TrustLevel trustLevel
2489     ) throws IOException, UntrustedIdentityException {
2490         var verifiedMessage = new VerifiedMessage(destination,
2491                 identityKey,
2492                 trustLevel.toVerifiedState(),
2493                 System.currentTimeMillis());
2494         sendSyncMessage(SignalServiceSyncMessage.forVerified(verifiedMessage));
2495     }
2496
2497     public List<Pair<RecipientId, Contact>> getContacts() {
2498         return account.getContactStore().getContacts();
2499     }
2500
2501     public String getContactOrProfileName(String number) throws InvalidNumberException {
2502         final var recipientId = canonicalizeAndResolveRecipient(number);
2503         final var recipient = account.getRecipientStore().getRecipient(recipientId);
2504         if (recipient == null) {
2505             return null;
2506         }
2507
2508         if (recipient.getContact() != null && !Util.isEmpty(recipient.getContact().getName())) {
2509             return recipient.getContact().getName();
2510         }
2511
2512         if (recipient.getProfile() != null && recipient.getProfile() != null) {
2513             return recipient.getProfile().getDisplayName();
2514         }
2515
2516         return null;
2517     }
2518
2519     public GroupInfo getGroup(GroupId groupId) {
2520         final var group = account.getGroupStore().getGroup(groupId);
2521         if (group instanceof GroupInfoV2 && ((GroupInfoV2) group).getGroup() == null) {
2522             final var groupSecretParams = GroupSecretParams.deriveFromMasterKey(((GroupInfoV2) group).getMasterKey());
2523             ((GroupInfoV2) group).setGroup(groupHelper.getDecryptedGroup(groupSecretParams), this::resolveRecipient);
2524             account.getGroupStore().updateGroup(group);
2525         }
2526         return group;
2527     }
2528
2529     public List<IdentityInfo> getIdentities() {
2530         return account.getIdentityKeyStore().getIdentities();
2531     }
2532
2533     public List<IdentityInfo> getIdentities(String number) throws InvalidNumberException {
2534         final var identity = account.getIdentityKeyStore().getIdentity(canonicalizeAndResolveRecipient(number));
2535         return identity == null ? List.of() : List.of(identity);
2536     }
2537
2538     /**
2539      * Trust this the identity with this fingerprint
2540      *
2541      * @param name        username of the identity
2542      * @param fingerprint Fingerprint
2543      */
2544     public boolean trustIdentityVerified(String name, byte[] fingerprint) throws InvalidNumberException {
2545         var recipientId = canonicalizeAndResolveRecipient(name);
2546         return trustIdentity(recipientId,
2547                 identityKey -> Arrays.equals(identityKey.serialize(), fingerprint),
2548                 TrustLevel.TRUSTED_VERIFIED);
2549     }
2550
2551     /**
2552      * Trust this the identity with this safety number
2553      *
2554      * @param name         username of the identity
2555      * @param safetyNumber Safety number
2556      */
2557     public boolean trustIdentityVerifiedSafetyNumber(String name, String safetyNumber) throws InvalidNumberException {
2558         var recipientId = canonicalizeAndResolveRecipient(name);
2559         var address = account.getRecipientStore().resolveServiceAddress(recipientId);
2560         return trustIdentity(recipientId,
2561                 identityKey -> safetyNumber.equals(computeSafetyNumber(address, identityKey)),
2562                 TrustLevel.TRUSTED_VERIFIED);
2563     }
2564
2565     /**
2566      * Trust all keys of this identity without verification
2567      *
2568      * @param name username of the identity
2569      */
2570     public boolean trustIdentityAllKeys(String name) throws InvalidNumberException {
2571         var recipientId = canonicalizeAndResolveRecipient(name);
2572         return trustIdentity(recipientId, identityKey -> true, TrustLevel.TRUSTED_UNVERIFIED);
2573     }
2574
2575     private boolean trustIdentity(
2576             RecipientId recipientId, Function<IdentityKey, Boolean> verifier, TrustLevel trustLevel
2577     ) {
2578         var identity = account.getIdentityKeyStore().getIdentity(recipientId);
2579         if (identity == null) {
2580             return false;
2581         }
2582
2583         if (!verifier.apply(identity.getIdentityKey())) {
2584             return false;
2585         }
2586
2587         account.getIdentityKeyStore().setIdentityTrustLevel(recipientId, identity.getIdentityKey(), trustLevel);
2588         try {
2589             var address = account.getRecipientStore().resolveServiceAddress(recipientId);
2590             sendVerifiedMessage(address, identity.getIdentityKey(), trustLevel);
2591         } catch (IOException | UntrustedIdentityException e) {
2592             logger.warn("Failed to send verification sync message: {}", e.getMessage());
2593         }
2594
2595         return true;
2596     }
2597
2598     public String computeSafetyNumber(
2599             SignalServiceAddress theirAddress, IdentityKey theirIdentityKey
2600     ) {
2601         return Utils.computeSafetyNumber(ServiceConfig.capabilities.isUuid(),
2602                 account.getSelfAddress(),
2603                 getIdentityKeyPair().getPublicKey(),
2604                 theirAddress,
2605                 theirIdentityKey);
2606     }
2607
2608     @Deprecated
2609     public SignalServiceAddress resolveSignalServiceAddress(String identifier) {
2610         var address = Utils.getSignalServiceAddressFromIdentifier(identifier);
2611
2612         return resolveSignalServiceAddress(address);
2613     }
2614
2615     @Deprecated
2616     public SignalServiceAddress resolveSignalServiceAddress(SignalServiceAddress address) {
2617         if (address.matches(account.getSelfAddress())) {
2618             return account.getSelfAddress();
2619         }
2620
2621         return account.getRecipientStore().resolveServiceAddress(address);
2622     }
2623
2624     public SignalServiceAddress resolveSignalServiceAddress(RecipientId recipientId) {
2625         return account.getRecipientStore().resolveServiceAddress(recipientId);
2626     }
2627
2628     public RecipientId canonicalizeAndResolveRecipient(String identifier) throws InvalidNumberException {
2629         var canonicalizedNumber = UuidUtil.isUuid(identifier)
2630                 ? identifier
2631                 : PhoneNumberFormatter.formatNumber(identifier, account.getUsername());
2632
2633         return resolveRecipient(canonicalizedNumber);
2634     }
2635
2636     private RecipientId resolveRecipient(final String identifier) {
2637         var address = Utils.getSignalServiceAddressFromIdentifier(identifier);
2638
2639         return resolveRecipient(address);
2640     }
2641
2642     public RecipientId resolveRecipient(SignalServiceAddress address) {
2643         return account.getRecipientStore().resolveRecipient(address);
2644     }
2645
2646     private RecipientId resolveRecipientTrusted(SignalServiceAddress address) {
2647         return account.getRecipientStore().resolveRecipientTrusted(address);
2648     }
2649
2650     @Override
2651     public void close() throws IOException {
2652         close(true);
2653     }
2654
2655     void close(boolean closeAccount) throws IOException {
2656         executor.shutdown();
2657
2658         if (messagePipe != null) {
2659             messagePipe.shutdown();
2660             messagePipe = null;
2661         }
2662
2663         if (unidentifiedMessagePipe != null) {
2664             unidentifiedMessagePipe.shutdown();
2665             unidentifiedMessagePipe = null;
2666         }
2667
2668         if (closeAccount && account != null) {
2669             account.close();
2670         }
2671         account = null;
2672     }
2673
2674     public interface ReceiveMessageHandler {
2675
2676         void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent decryptedContent, Throwable e);
2677     }
2678 }