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