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