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