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             SignalServiceAddress address
 533     ) {
 534         return getRecipientProfile(resolveRecipient(address), false);
 535     }
 536
 537     public Profile getRecipientProfile(
 538             RecipientId recipientId
 539     ) {
 540         return getRecipientProfile(recipientId, false);
 541     }
 542
 543     private final Set<RecipientId> pendingProfileRequest = new HashSet<>();
 544
 545     Profile getRecipientProfile(
 546             RecipientId recipientId, boolean force
 547     ) {
 548         var profileKey = account.getProfileStore().getProfileKey(recipientId);
 549         if (profileKey == null) {
 550             if (force) {
 551                 // retrieve profile to get identity key
 552                 retrieveEncryptedProfile(recipientId);
 553             }
 554             return null;
 555         }
 556         var profile = account.getProfileStore().getProfile(recipientId);
 557
 558         var now = new Date().getTime();
 559         // Profiles are cached for 24h before retrieving them again, unless forced
 560         if (!force && profile != null && now - profile.getLastUpdateTimestamp() < 24 * 60 * 60 * 1000) {
 561             return profile;
 562         }
 563
 564         synchronized (pendingProfileRequest) {
 565             if (pendingProfileRequest.contains(recipientId)) {
 566                 return profile;
 567             }
 568             pendingProfileRequest.add(recipientId);
 569         }
 570         final SignalServiceProfile encryptedProfile;
 571         try {
 572             encryptedProfile = retrieveEncryptedProfile(recipientId);
 573         } finally {
 574             synchronized (pendingProfileRequest) {
 575                 pendingProfileRequest.remove(recipientId);
 576             }
 577         }
 578         if (encryptedProfile == null) {
 579             return null;
 580         }
 581
 582         profile = decryptProfileAndDownloadAvatar(recipientId, profileKey, encryptedProfile);
 583         account.getProfileStore().storeProfile(recipientId, profile);
 584
 585         return profile;
 586     }
 587
 588     private SignalServiceProfile retrieveEncryptedProfile(RecipientId recipientId) {
 589         try {
 590             return retrieveProfileAndCredential(recipientId, SignalServiceProfile.RequestType.PROFILE).getProfile();
 591         } catch (IOException e) {
 592             logger.warn("Failed to retrieve profile, ignoring: {}", e.getMessage());
 593             return null;
 594         }
 595     }
 596
 597     private ProfileAndCredential retrieveProfileAndCredential(
 598             final RecipientId recipientId, final SignalServiceProfile.RequestType requestType
 599     ) throws IOException {
 600         final var profileAndCredential = profileHelper.retrieveProfileSync(recipientId, requestType);
 601         final var profile = profileAndCredential.getProfile();
 602
 603         try {
 604             var newIdentity = account.getIdentityKeyStore()
 605                     .saveIdentity(recipientId,
 606                             new IdentityKey(Base64.getDecoder().decode(profile.getIdentityKey())),
 607                             new Date());
 608
 609             if (newIdentity) {
 610                 account.getSessionStore().archiveSessions(recipientId);
 611             }
 612         } catch (InvalidKeyException ignored) {
 613             logger.warn("Got invalid identity key in profile for {}",
 614                     resolveSignalServiceAddress(recipientId).getLegacyIdentifier());
 615         }
 616         return profileAndCredential;
 617     }
 618
 619     private ProfileKeyCredential getRecipientProfileKeyCredential(RecipientId recipientId) {
 620         var profileKeyCredential = account.getProfileStore().getProfileKeyCredential(recipientId);
 621         if (profileKeyCredential != null) {
 622             return profileKeyCredential;
 623         }
 624
 625         ProfileAndCredential profileAndCredential;
 626         try {
 627             profileAndCredential = retrieveProfileAndCredential(recipientId,
 628                     SignalServiceProfile.RequestType.PROFILE_AND_CREDENTIAL);
 629         } catch (IOException e) {
 630             logger.warn("Failed to retrieve profile key credential, ignoring: {}", e.getMessage());
 631             return null;
 632         }
 633
 634         profileKeyCredential = profileAndCredential.getProfileKeyCredential().orNull();
 635         account.getProfileStore().storeProfileKeyCredential(recipientId, profileKeyCredential);
 636
 637         var profileKey = account.getProfileStore().getProfileKey(recipientId);
 638         if (profileKey != null) {
 639             final var profile = decryptProfileAndDownloadAvatar(recipientId,
 640                     profileKey,
 641                     profileAndCredential.getProfile());
 642             account.getProfileStore().storeProfile(recipientId, profile);
 643         }
 644
 645         return profileKeyCredential;
 646     }
 647
 648     private Profile decryptProfileAndDownloadAvatar(
 649             final RecipientId recipientId, final ProfileKey profileKey, final SignalServiceProfile encryptedProfile
 650     ) {
 651         if (encryptedProfile.getAvatar() != null) {
 652             downloadProfileAvatar(resolveSignalServiceAddress(recipientId), encryptedProfile.getAvatar(), profileKey);
 653         }
 654
 655         return ProfileUtils.decryptProfile(profileKey, encryptedProfile);
 656     }
 657
 658     private Optional<SignalServiceAttachmentStream> createGroupAvatarAttachment(GroupId groupId) throws IOException {
 659         final var streamDetails = avatarStore.retrieveGroupAvatar(groupId);
 660         if (streamDetails == null) {
 661             return Optional.absent();
 662         }
 663
 664         return Optional.of(AttachmentUtils.createAttachment(streamDetails, Optional.absent()));
 665     }
 666
 667     private Optional<SignalServiceAttachmentStream> createContactAvatarAttachment(SignalServiceAddress address) throws IOException {
 668         final var streamDetails = avatarStore.retrieveContactAvatar(address);
 669         if (streamDetails == null) {
 670             return Optional.absent();
 671         }
 672
 673         return Optional.of(AttachmentUtils.createAttachment(streamDetails, Optional.absent()));
 674     }
 675
 676     private GroupInfo getGroupForSending(GroupId groupId) throws GroupNotFoundException, NotAGroupMemberException {
 677         var g = getGroup(groupId);
 678         if (g == null) {
 679             throw new GroupNotFoundException(groupId);
 680         }
 681         if (!g.isMember(account.getSelfRecipientId())) {
 682             throw new NotAGroupMemberException(groupId, g.getTitle());
 683         }
 684         return g;
 685     }
 686
 687     private GroupInfo getGroupForUpdating(GroupId groupId) throws GroupNotFoundException, NotAGroupMemberException {
 688         var g = getGroup(groupId);
 689         if (g == null) {
 690             throw new GroupNotFoundException(groupId);
 691         }
 692         if (!g.isMember(account.getSelfRecipientId()) && !g.isPendingMember(account.getSelfRecipientId())) {
 693             throw new NotAGroupMemberException(groupId, g.getTitle());
 694         }
 695         return g;
 696     }
 697
 698     public List<GroupInfo> getGroups() {
 699         return account.getGroupStore().getGroups();
 700     }
 701
 702     public Pair<Long, List<SendMessageResult>> sendGroupMessage(
 703             String messageText, List<String> attachments, GroupId groupId
 704     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 705         final var messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
 706         if (attachments != null) {
 707             messageBuilder.withAttachments(AttachmentUtils.getSignalServiceAttachments(attachments));
 708         }
 709
 710         return sendGroupMessage(messageBuilder, groupId);
 711     }
 712
 713     public Pair<Long, List<SendMessageResult>> sendGroupMessageReaction(
 714             String emoji, boolean remove, String targetAuthor, long targetSentTimestamp, GroupId groupId
 715     ) throws IOException, InvalidNumberException, NotAGroupMemberException, GroupNotFoundException {
 716         var reaction = new SignalServiceDataMessage.Reaction(emoji,
 717                 remove,
 718                 canonicalizeAndResolveSignalServiceAddress(targetAuthor),
 719                 targetSentTimestamp);
 720         final var messageBuilder = SignalServiceDataMessage.newBuilder().withReaction(reaction);
 721
 722         return sendGroupMessage(messageBuilder, groupId);
 723     }
 724
 725     public Pair<Long, List<SendMessageResult>> sendGroupMessage(
 726             SignalServiceDataMessage.Builder messageBuilder, GroupId groupId
 727     ) throws IOException, GroupNotFoundException, NotAGroupMemberException {
 728         final var g = getGroupForSending(groupId);
 729
 730         GroupUtils.setGroupContext(messageBuilder, g);
 731         messageBuilder.withExpiration(g.getMessageExpirationTime());
 732
 733         return sendMessage(messageBuilder, g.getMembersWithout(account.getSelfRecipientId()));
 734     }
 735
 736     public Pair<Long, List<SendMessageResult>> sendQuitGroupMessage(GroupId groupId) throws GroupNotFoundException, IOException, NotAGroupMemberException {
 737         SignalServiceDataMessage.Builder messageBuilder;
 738
 739         final var g = getGroupForUpdating(groupId);
 740         if (g instanceof GroupInfoV1) {
 741             var groupInfoV1 = (GroupInfoV1) g;
 742             var group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.QUIT).withId(groupId.serialize()).build();
 743             messageBuilder = SignalServiceDataMessage.newBuilder().asGroupMessage(group);
 744             groupInfoV1.removeMember(account.getSelfRecipientId());
 745             account.getGroupStore().updateGroup(groupInfoV1);
 746         } else {
 747             final var groupInfoV2 = (GroupInfoV2) g;
 748             final var groupGroupChangePair = groupHelper.leaveGroup(groupInfoV2);
 749             groupInfoV2.setGroup(groupGroupChangePair.first(), this::resolveRecipient);
 750             messageBuilder = getGroupUpdateMessageBuilder(groupInfoV2, groupGroupChangePair.second().toByteArray());
 751             account.getGroupStore().updateGroup(groupInfoV2);
 752         }
 753
 754         return sendMessage(messageBuilder, g.getMembersWithout(account.getSelfRecipientId()));
 755     }
 756
 757     public Pair<GroupId, List<SendMessageResult>> updateGroup(
 758             GroupId groupId, String name, List<String> members, File avatarFile
 759     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, InvalidNumberException, NotAGroupMemberException {
 760         return sendUpdateGroupMessage(groupId,
 761                 name,
 762                 members == null ? null : getSignalServiceAddresses(members),
 763                 avatarFile);
 764     }
 765
 766     private Pair<GroupId, List<SendMessageResult>> sendUpdateGroupMessage(
 767             GroupId groupId, String name, Set<RecipientId> members, File avatarFile
 768     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 769         GroupInfo g;
 770         SignalServiceDataMessage.Builder messageBuilder;
 771         if (groupId == null) {
 772             // Create new group
 773             var gv2Pair = groupHelper.createGroupV2(name == null ? "" : name,
 774                     members == null ? Set.of() : members,
 775                     avatarFile);
 776             if (gv2Pair == null) {
 777                 var gv1 = new GroupInfoV1(GroupIdV1.createRandom());
 778                 gv1.addMembers(List.of(account.getSelfRecipientId()));
 779                 updateGroupV1(gv1, name, members, avatarFile);
 780                 messageBuilder = getGroupUpdateMessageBuilder(gv1);
 781                 g = gv1;
 782             } else {
 783                 final var gv2 = gv2Pair.first();
 784                 final var decryptedGroup = gv2Pair.second();
 785
 786                 gv2.setGroup(decryptedGroup, this::resolveRecipient);
 787                 if (avatarFile != null) {
 788                     avatarStore.storeGroupAvatar(gv2.getGroupId(),
 789                             outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
 790                 }
 791                 messageBuilder = getGroupUpdateMessageBuilder(gv2, null);
 792                 g = gv2;
 793             }
 794         } else {
 795             var group = getGroupForUpdating(groupId);
 796             if (group instanceof GroupInfoV2) {
 797                 final var groupInfoV2 = (GroupInfoV2) group;
 798
 799                 Pair<Long, List<SendMessageResult>> result = null;
 800                 if (groupInfoV2.isPendingMember(account.getSelfRecipientId())) {
 801                     var groupGroupChangePair = groupHelper.acceptInvite(groupInfoV2);
 802                     result = sendUpdateGroupMessage(groupInfoV2,
 803                             groupGroupChangePair.first(),
 804                             groupGroupChangePair.second());
 805                 }
 806
 807                 if (members != null) {
 808                     final var newMembers = new HashSet<>(members);
 809                     newMembers.removeAll(group.getMembers());
 810                     if (newMembers.size() > 0) {
 811                         var groupGroupChangePair = groupHelper.updateGroupV2(groupInfoV2, newMembers);
 812                         result = sendUpdateGroupMessage(groupInfoV2,
 813                                 groupGroupChangePair.first(),
 814                                 groupGroupChangePair.second());
 815                     }
 816                 }
 817                 if (result == null || name != null || avatarFile != null) {
 818                     var groupGroupChangePair = groupHelper.updateGroupV2(groupInfoV2, name, avatarFile);
 819                     if (avatarFile != null) {
 820                         avatarStore.storeGroupAvatar(groupInfoV2.getGroupId(),
 821                                 outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
 822                     }
 823                     result = sendUpdateGroupMessage(groupInfoV2,
 824                             groupGroupChangePair.first(),
 825                             groupGroupChangePair.second());
 826                 }
 827
 828                 return new Pair<>(group.getGroupId(), result.second());
 829             } else {
 830                 var gv1 = (GroupInfoV1) group;
 831                 updateGroupV1(gv1, name, members, avatarFile);
 832                 messageBuilder = getGroupUpdateMessageBuilder(gv1);
 833                 g = gv1;
 834             }
 835         }
 836
 837         account.getGroupStore().updateGroup(g);
 838
 839         final var result = sendMessage(messageBuilder,
 840                 g.getMembersIncludingPendingWithout(account.getSelfRecipientId()));
 841         return new Pair<>(g.getGroupId(), result.second());
 842     }
 843
 844     private void updateGroupV1(
 845             final GroupInfoV1 g, final String name, final Collection<RecipientId> members, final File avatarFile
 846     ) throws IOException {
 847         if (name != null) {
 848             g.name = name;
 849         }
 850
 851         if (members != null) {
 852             final var newMemberAddresses = members.stream()
 853                     .filter(member -> !g.isMember(member))
 854                     .map(this::resolveSignalServiceAddress)
 855                     .collect(Collectors.toList());
 856             final var newE164Members = new HashSet<String>();
 857             for (var member : newMemberAddresses) {
 858                 if (!member.getNumber().isPresent()) {
 859                     continue;
 860                 }
 861                 newE164Members.add(member.getNumber().get());
 862             }
 863
 864             final var registeredUsers = getRegisteredUsers(newE164Members);
 865             if (registeredUsers.size() != newE164Members.size()) {
 866                 // Some of the new members are not registered on Signal
 867                 newE164Members.removeAll(registeredUsers.keySet());
 868                 throw new IOException("Failed to add members "
 869                         + String.join(", ", newE164Members)
 870                         + " to group: Not registered on Signal");
 871             }
 872
 873             g.addMembers(members);
 874         }
 875
 876         if (avatarFile != null) {
 877             avatarStore.storeGroupAvatar(g.getGroupId(),
 878                     outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
 879         }
 880     }
 881
 882     public Pair<GroupId, List<SendMessageResult>> joinGroup(
 883             GroupInviteLinkUrl inviteLinkUrl
 884     ) throws IOException, GroupLinkNotActiveException {
 885         return sendJoinGroupMessage(inviteLinkUrl);
 886     }
 887
 888     private Pair<GroupId, List<SendMessageResult>> sendJoinGroupMessage(
 889             GroupInviteLinkUrl inviteLinkUrl
 890     ) throws IOException, GroupLinkNotActiveException {
 891         final var groupJoinInfo = groupHelper.getDecryptedGroupJoinInfo(inviteLinkUrl.getGroupMasterKey(),
 892                 inviteLinkUrl.getPassword());
 893         final var groupChange = groupHelper.joinGroup(inviteLinkUrl.getGroupMasterKey(),
 894                 inviteLinkUrl.getPassword(),
 895                 groupJoinInfo);
 896         final var group = getOrMigrateGroup(inviteLinkUrl.getGroupMasterKey(),
 897                 groupJoinInfo.getRevision() + 1,
 898                 groupChange.toByteArray());
 899
 900         if (group.getGroup() == null) {
 901             // Only requested member, can't send update to group members
 902             return new Pair<>(group.getGroupId(), List.of());
 903         }
 904
 905         final var result = sendUpdateGroupMessage(group, group.getGroup(), groupChange);
 906
 907         return new Pair<>(group.getGroupId(), result.second());
 908     }
 909
 910     private static int currentTimeDays() {
 911         return (int) TimeUnit.MILLISECONDS.toDays(System.currentTimeMillis());
 912     }
 913
 914     private GroupsV2AuthorizationString getGroupAuthForToday(
 915             final GroupSecretParams groupSecretParams
 916     ) throws IOException {
 917         final var today = currentTimeDays();
 918         // Returns credentials for the next 7 days
 919         final var credentials = groupsV2Api.getCredentials(today);
 920         // TODO cache credentials until they expire
 921         var authCredentialResponse = credentials.get(today);
 922         try {
 923             return groupsV2Api.getGroupsV2AuthorizationString(account.getUuid(),
 924                     today,
 925                     groupSecretParams,
 926                     authCredentialResponse);
 927         } catch (VerificationFailedException e) {
 928             throw new IOException(e);
 929         }
 930     }
 931
 932     private Pair<Long, List<SendMessageResult>> sendUpdateGroupMessage(
 933             GroupInfoV2 group, DecryptedGroup newDecryptedGroup, GroupChange groupChange
 934     ) throws IOException {
 935         group.setGroup(newDecryptedGroup, this::resolveRecipient);
 936         final var messageBuilder = getGroupUpdateMessageBuilder(group, groupChange.toByteArray());
 937         account.getGroupStore().updateGroup(group);
 938         return sendMessage(messageBuilder, group.getMembersIncludingPendingWithout(account.getSelfRecipientId()));
 939     }
 940
 941     Pair<Long, List<SendMessageResult>> sendGroupInfoMessage(
 942             GroupIdV1 groupId, SignalServiceAddress recipient
 943     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, AttachmentInvalidException {
 944         GroupInfoV1 g;
 945         var group = getGroupForSending(groupId);
 946         if (!(group instanceof GroupInfoV1)) {
 947             throw new RuntimeException("Received an invalid group request for a v2 group!");
 948         }
 949         g = (GroupInfoV1) group;
 950
 951         if (!g.isMember(resolveRecipient(recipient))) {
 952             throw new NotAGroupMemberException(groupId, g.name);
 953         }
 954
 955         var messageBuilder = getGroupUpdateMessageBuilder(g);
 956
 957         // Send group message only to the recipient who requested it
 958         return sendMessage(messageBuilder, Set.of(resolveRecipient(recipient)));
 959     }
 960
 961     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfoV1 g) throws AttachmentInvalidException {
 962         var group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.UPDATE)
 963                 .withId(g.getGroupId().serialize())
 964                 .withName(g.name)
 965                 .withMembers(g.getMembers()
 966                         .stream()
 967                         .map(this::resolveSignalServiceAddress)
 968                         .collect(Collectors.toList()));
 969
 970         try {
 971             final var attachment = createGroupAvatarAttachment(g.getGroupId());
 972             if (attachment.isPresent()) {
 973                 group.withAvatar(attachment.get());
 974             }
 975         } catch (IOException e) {
 976             throw new AttachmentInvalidException(g.getGroupId().toBase64(), e);
 977         }
 978
 979         return SignalServiceDataMessage.newBuilder()
 980                 .asGroupMessage(group.build())
 981                 .withExpiration(g.getMessageExpirationTime());
 982     }
 983
 984     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfoV2 g, byte[] signedGroupChange) {
 985         var group = SignalServiceGroupV2.newBuilder(g.getMasterKey())
 986                 .withRevision(g.getGroup().getRevision())
 987                 .withSignedGroupChange(signedGroupChange);
 988         return SignalServiceDataMessage.newBuilder()
 989                 .asGroupMessage(group.build())
 990                 .withExpiration(g.getMessageExpirationTime());
 991     }
 992
 993     Pair<Long, List<SendMessageResult>> sendGroupInfoRequest(
 994             GroupIdV1 groupId, SignalServiceAddress recipient
 995     ) throws IOException {
 996         var group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.REQUEST_INFO).withId(groupId.serialize());
 997
 998         var messageBuilder = SignalServiceDataMessage.newBuilder().asGroupMessage(group.build());
 999
1000         // Send group info request message to the recipient who sent us a message with this groupId
1001         return sendMessage(messageBuilder, Set.of(resolveRecipient(recipient)));
1002     }
1003
1004     void sendReceipt(
1005             SignalServiceAddress remoteAddress, long messageId
1006     ) throws IOException, UntrustedIdentityException {
1007         var receiptMessage = new SignalServiceReceiptMessage(SignalServiceReceiptMessage.Type.DELIVERY,
1008                 List.of(messageId),
1009                 System.currentTimeMillis());
1010
1011         createMessageSender().sendReceipt(remoteAddress,
1012                 unidentifiedAccessHelper.getAccessFor(resolveRecipient(remoteAddress)),
1013                 receiptMessage);
1014     }
1015
1016     public Pair<Long, List<SendMessageResult>> sendMessage(
1017             String messageText, List<String> attachments, List<String> recipients
1018     ) throws IOException, AttachmentInvalidException, InvalidNumberException {
1019         final var messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
1020         if (attachments != null) {
1021             var attachmentStreams = AttachmentUtils.getSignalServiceAttachments(attachments);
1022
1023             // Upload attachments here, so we only upload once even for multiple recipients
1024             var messageSender = createMessageSender();
1025             var attachmentPointers = new ArrayList<SignalServiceAttachment>(attachmentStreams.size());
1026             for (var attachment : attachmentStreams) {
1027                 if (attachment.isStream()) {
1028                     attachmentPointers.add(messageSender.uploadAttachment(attachment.asStream()));
1029                 } else if (attachment.isPointer()) {
1030                     attachmentPointers.add(attachment.asPointer());
1031                 }
1032             }
1033
1034             messageBuilder.withAttachments(attachmentPointers);
1035         }
1036         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
1037     }
1038
1039     public Pair<Long, SendMessageResult> sendSelfMessage(
1040             String messageText, List<String> attachments
1041     ) throws IOException, AttachmentInvalidException {
1042         final var messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
1043         if (attachments != null) {
1044             messageBuilder.withAttachments(AttachmentUtils.getSignalServiceAttachments(attachments));
1045         }
1046         return sendSelfMessage(messageBuilder);
1047     }
1048
1049     public Pair<Long, List<SendMessageResult>> sendRemoteDeleteMessage(
1050             long targetSentTimestamp, List<String> recipients
1051     ) throws IOException, InvalidNumberException {
1052         var delete = new SignalServiceDataMessage.RemoteDelete(targetSentTimestamp);
1053         final var messageBuilder = SignalServiceDataMessage.newBuilder().withRemoteDelete(delete);
1054         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
1055     }
1056
1057     public Pair<Long, List<SendMessageResult>> sendGroupRemoteDeleteMessage(
1058             long targetSentTimestamp, GroupId groupId
1059     ) throws IOException, NotAGroupMemberException, GroupNotFoundException {
1060         var delete = new SignalServiceDataMessage.RemoteDelete(targetSentTimestamp);
1061         final var messageBuilder = SignalServiceDataMessage.newBuilder().withRemoteDelete(delete);
1062         return sendGroupMessage(messageBuilder, groupId);
1063     }
1064
1065     public Pair<Long, List<SendMessageResult>> sendMessageReaction(
1066             String emoji, boolean remove, String targetAuthor, long targetSentTimestamp, List<String> recipients
1067     ) throws IOException, InvalidNumberException {
1068         var reaction = new SignalServiceDataMessage.Reaction(emoji,
1069                 remove,
1070                 canonicalizeAndResolveSignalServiceAddress(targetAuthor),
1071                 targetSentTimestamp);
1072         final var messageBuilder = SignalServiceDataMessage.newBuilder().withReaction(reaction);
1073         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
1074     }
1075
1076     public Pair<Long, List<SendMessageResult>> sendEndSessionMessage(List<String> recipients) throws IOException, InvalidNumberException {
1077         var messageBuilder = SignalServiceDataMessage.newBuilder().asEndSessionMessage();
1078
1079         final var signalServiceAddresses = getSignalServiceAddresses(recipients);
1080         try {
1081             return sendMessage(messageBuilder, signalServiceAddresses);
1082         } catch (Exception e) {
1083             for (var address : signalServiceAddresses) {
1084                 handleEndSession(address);
1085             }
1086             throw e;
1087         }
1088     }
1089
1090     public String getContactName(String number) throws InvalidNumberException {
1091         var contact = account.getContactStore().getContact(canonicalizeAndResolveRecipient(number));
1092         return contact == null || contact.getName() == null ? "" : contact.getName();
1093     }
1094
1095     public void setContactName(String number, String name) throws InvalidNumberException, NotMasterDeviceException {
1096         if (!account.isMasterDevice()) {
1097             throw new NotMasterDeviceException();
1098         }
1099         final var recipientId = canonicalizeAndResolveRecipient(number);
1100         var contact = account.getContactStore().getContact(recipientId);
1101         final var builder = contact == null ? Contact.newBuilder() : Contact.newBuilder(contact);
1102         account.getContactStore().storeContact(recipientId, builder.withName(name).build());
1103     }
1104
1105     public void setContactBlocked(
1106             String number, boolean blocked
1107     ) throws InvalidNumberException, NotMasterDeviceException {
1108         if (!account.isMasterDevice()) {
1109             throw new NotMasterDeviceException();
1110         }
1111         setContactBlocked(canonicalizeAndResolveRecipient(number), blocked);
1112     }
1113
1114     private void setContactBlocked(RecipientId recipientId, boolean blocked) {
1115         var contact = account.getContactStore().getContact(recipientId);
1116         final var builder = contact == null ? Contact.newBuilder() : Contact.newBuilder(contact);
1117         account.getContactStore().storeContact(recipientId, builder.withBlocked(blocked).build());
1118     }
1119
1120     public void setGroupBlocked(final GroupId groupId, final boolean blocked) throws GroupNotFoundException {
1121         var group = getGroup(groupId);
1122         if (group == null) {
1123             throw new GroupNotFoundException(groupId);
1124         }
1125
1126         group.setBlocked(blocked);
1127         account.getGroupStore().updateGroup(group);
1128     }
1129
1130     private void setExpirationTimer(RecipientId recipientId, int messageExpirationTimer) {
1131         var contact = account.getContactStore().getContact(recipientId);
1132         if (contact != null && contact.getMessageExpirationTime() == messageExpirationTimer) {
1133             return;
1134         }
1135         final var builder = contact == null ? Contact.newBuilder() : Contact.newBuilder(contact);
1136         account.getContactStore()
1137                 .storeContact(recipientId, builder.withMessageExpirationTime(messageExpirationTimer).build());
1138     }
1139
1140     private void sendExpirationTimerUpdate(RecipientId recipientId) throws IOException {
1141         final var messageBuilder = SignalServiceDataMessage.newBuilder().asExpirationUpdate();
1142         sendMessage(messageBuilder, Set.of(recipientId));
1143     }
1144
1145     /**
1146      * Change the expiration timer for a contact
1147      */
1148     public void setExpirationTimer(
1149             String number, int messageExpirationTimer
1150     ) throws IOException, InvalidNumberException {
1151         var recipientId = canonicalizeAndResolveRecipient(number);
1152         setExpirationTimer(recipientId, messageExpirationTimer);
1153         sendExpirationTimerUpdate(recipientId);
1154     }
1155
1156     /**
1157      * Change the expiration timer for a group
1158      */
1159     public void setExpirationTimer(GroupId groupId, int messageExpirationTimer) {
1160         var g = getGroup(groupId);
1161         if (g instanceof GroupInfoV1) {
1162             var groupInfoV1 = (GroupInfoV1) g;
1163             groupInfoV1.messageExpirationTime = messageExpirationTimer;
1164             account.getGroupStore().updateGroup(groupInfoV1);
1165         } else {
1166             throw new RuntimeException("TODO Not implemented!");
1167         }
1168     }
1169
1170     /**
1171      * Upload the sticker pack from path.
1172      *
1173      * @param path Path can be a path to a manifest.json file or to a zip file that contains a manifest.json file
1174      * @return if successful, returns the URL to install the sticker pack in the signal app
1175      */
1176     public String uploadStickerPack(File path) throws IOException, StickerPackInvalidException {
1177         var manifest = StickerUtils.getSignalServiceStickerManifestUpload(path);
1178
1179         var messageSender = createMessageSender();
1180
1181         var packKey = KeyUtils.createStickerUploadKey();
1182         var packId = messageSender.uploadStickerManifest(manifest, packKey);
1183
1184         var sticker = new Sticker(StickerPackId.deserialize(Hex.fromStringCondensed(packId)), packKey);
1185         account.getStickerStore().updateSticker(sticker);
1186
1187         try {
1188             return new URI("https",
1189                     "signal.art",
1190                     "/addstickers/",
1191                     "pack_id=" + URLEncoder.encode(packId, StandardCharsets.UTF_8) + "&pack_key=" + URLEncoder.encode(
1192                             Hex.toStringCondensed(packKey),
1193                             StandardCharsets.UTF_8)).toString();
1194         } catch (URISyntaxException e) {
1195             throw new AssertionError(e);
1196         }
1197     }
1198
1199     public void requestAllSyncData() throws IOException {
1200         requestSyncGroups();
1201         requestSyncContacts();
1202         requestSyncBlocked();
1203         requestSyncConfiguration();
1204         requestSyncKeys();
1205     }
1206
1207     private void requestSyncGroups() throws IOException {
1208         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1209                 .setType(SignalServiceProtos.SyncMessage.Request.Type.GROUPS)
1210                 .build();
1211         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1212         try {
1213             sendSyncMessage(message);
1214         } catch (UntrustedIdentityException e) {
1215             throw new AssertionError(e);
1216         }
1217     }
1218
1219     private void requestSyncContacts() throws IOException {
1220         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1221                 .setType(SignalServiceProtos.SyncMessage.Request.Type.CONTACTS)
1222                 .build();
1223         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1224         try {
1225             sendSyncMessage(message);
1226         } catch (UntrustedIdentityException e) {
1227             throw new AssertionError(e);
1228         }
1229     }
1230
1231     private void requestSyncBlocked() throws IOException {
1232         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1233                 .setType(SignalServiceProtos.SyncMessage.Request.Type.BLOCKED)
1234                 .build();
1235         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1236         try {
1237             sendSyncMessage(message);
1238         } catch (UntrustedIdentityException e) {
1239             throw new AssertionError(e);
1240         }
1241     }
1242
1243     private void requestSyncConfiguration() throws IOException {
1244         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1245                 .setType(SignalServiceProtos.SyncMessage.Request.Type.CONFIGURATION)
1246                 .build();
1247         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1248         try {
1249             sendSyncMessage(message);
1250         } catch (UntrustedIdentityException e) {
1251             throw new AssertionError(e);
1252         }
1253     }
1254
1255     private void requestSyncKeys() throws IOException {
1256         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1257                 .setType(SignalServiceProtos.SyncMessage.Request.Type.KEYS)
1258                 .build();
1259         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1260         try {
1261             sendSyncMessage(message);
1262         } catch (UntrustedIdentityException e) {
1263             throw new AssertionError(e);
1264         }
1265     }
1266
1267     private byte[] getSenderCertificate() {
1268         // TODO support UUID capable sender certificates
1269         // byte[] certificate = accountManager.getSenderCertificateForPhoneNumberPrivacy();
1270         byte[] certificate;
1271         try {
1272             certificate = accountManager.getSenderCertificate();
1273         } catch (IOException e) {
1274             logger.warn("Failed to get sender certificate, ignoring: {}", e.getMessage());
1275             return null;
1276         }
1277         // TODO cache for a day
1278         return certificate;
1279     }
1280
1281     private void sendSyncMessage(SignalServiceSyncMessage message) throws IOException, UntrustedIdentityException {
1282         var messageSender = createMessageSender();
1283         messageSender.sendMessage(message, unidentifiedAccessHelper.getAccessForSync());
1284     }
1285
1286     private Set<RecipientId> getSignalServiceAddresses(Collection<String> numbers) throws InvalidNumberException {
1287         final var signalServiceAddresses = new HashSet<SignalServiceAddress>(numbers.size());
1288         final var addressesMissingUuid = new HashSet<SignalServiceAddress>();
1289
1290         for (var number : numbers) {
1291             final var resolvedAddress = canonicalizeAndResolveSignalServiceAddress(number);
1292             if (resolvedAddress.getUuid().isPresent()) {
1293                 signalServiceAddresses.add(resolvedAddress);
1294             } else {
1295                 addressesMissingUuid.add(resolvedAddress);
1296             }
1297         }
1298
1299         final var numbersMissingUuid = addressesMissingUuid.stream()
1300                 .map(a -> a.getNumber().get())
1301                 .collect(Collectors.toSet());
1302         Map<String, UUID> registeredUsers;
1303         try {
1304             registeredUsers = getRegisteredUsers(numbersMissingUuid);
1305         } catch (IOException e) {
1306             logger.warn("Failed to resolve uuids from server, ignoring: {}", e.getMessage());
1307             registeredUsers = Map.of();
1308         }
1309
1310         for (var address : addressesMissingUuid) {
1311             final var number = address.getNumber().get();
1312             if (registeredUsers.containsKey(number)) {
1313                 final var newAddress = resolveSignalServiceAddress(resolveRecipientTrusted(new SignalServiceAddress(
1314                         registeredUsers.get(number),
1315                         number)));
1316                 signalServiceAddresses.add(newAddress);
1317             } else {
1318                 signalServiceAddresses.add(address);
1319             }
1320         }
1321
1322         return signalServiceAddresses.stream().map(this::resolveRecipient).collect(Collectors.toSet());
1323     }
1324
1325     private RecipientId refreshRegisteredUser(RecipientId recipientId) throws IOException {
1326         final var address = resolveSignalServiceAddress(recipientId);
1327         if (!address.getNumber().isPresent()) {
1328             return recipientId;
1329         }
1330         final var number = address.getNumber().get();
1331         final var uuidMap = getRegisteredUsers(Set.of(number));
1332         return resolveRecipientTrusted(new SignalServiceAddress(uuidMap.getOrDefault(number, null), number));
1333     }
1334
1335     private Map<String, UUID> getRegisteredUsers(final Set<String> numbers) throws IOException {
1336         try {
1337             return accountManager.getRegisteredUsers(ServiceConfig.getIasKeyStore(),
1338                     numbers,
1339                     serviceEnvironmentConfig.getCdsMrenclave());
1340         } catch (Quote.InvalidQuoteFormatException | UnauthenticatedQuoteException | SignatureException | UnauthenticatedResponseException | InvalidKeyException e) {
1341             throw new IOException(e);
1342         }
1343     }
1344
1345     private Pair<Long, List<SendMessageResult>> sendMessage(
1346             SignalServiceDataMessage.Builder messageBuilder, Set<RecipientId> recipientIds
1347     ) throws IOException {
1348         final var timestamp = System.currentTimeMillis();
1349         messageBuilder.withTimestamp(timestamp);
1350         getOrCreateMessagePipe();
1351         getOrCreateUnidentifiedMessagePipe();
1352         SignalServiceDataMessage message = null;
1353         try {
1354             message = messageBuilder.build();
1355             if (message.getGroupContext().isPresent()) {
1356                 try {
1357                     var messageSender = createMessageSender();
1358                     final var isRecipientUpdate = false;
1359                     final var recipientIdList = new ArrayList<>(recipientIds);
1360                     final var addresses = recipientIdList.stream()
1361                             .map(this::resolveSignalServiceAddress)
1362                             .collect(Collectors.toList());
1363                     var result = messageSender.sendMessage(addresses,
1364                             unidentifiedAccessHelper.getAccessFor(recipientIdList),
1365                             isRecipientUpdate,
1366                             message);
1367
1368                     for (var r : result) {
1369                         if (r.getIdentityFailure() != null) {
1370                             final var recipientId = resolveRecipient(r.getAddress());
1371                             final var newIdentity = account.getIdentityKeyStore()
1372                                     .saveIdentity(recipientId, r.getIdentityFailure().getIdentityKey(), new Date());
1373                             if (newIdentity) {
1374                                 account.getSessionStore().archiveSessions(recipientId);
1375                             }
1376                         }
1377                     }
1378
1379                     return new Pair<>(timestamp, result);
1380                 } catch (UntrustedIdentityException e) {
1381                     return new Pair<>(timestamp, List.of());
1382                 }
1383             } else {
1384                 // Send to all individually, so sync messages are sent correctly
1385                 messageBuilder.withProfileKey(account.getProfileKey().serialize());
1386                 var results = new ArrayList<SendMessageResult>(recipientIds.size());
1387                 for (var recipientId : recipientIds) {
1388                     final var contact = account.getContactStore().getContact(recipientId);
1389                     final var expirationTime = contact != null ? contact.getMessageExpirationTime() : 0;
1390                     messageBuilder.withExpiration(expirationTime);
1391                     message = messageBuilder.build();
1392                     results.add(sendMessage(resolveSignalServiceAddress(recipientId), message));
1393                 }
1394                 return new Pair<>(timestamp, results);
1395             }
1396         } finally {
1397             if (message != null && message.isEndSession()) {
1398                 for (var recipient : recipientIds) {
1399                     handleEndSession(recipient);
1400                 }
1401             }
1402         }
1403     }
1404
1405     private Pair<Long, SendMessageResult> sendSelfMessage(
1406             SignalServiceDataMessage.Builder messageBuilder
1407     ) throws IOException {
1408         final var timestamp = System.currentTimeMillis();
1409         messageBuilder.withTimestamp(timestamp);
1410         getOrCreateMessagePipe();
1411         getOrCreateUnidentifiedMessagePipe();
1412         final var recipientId = account.getSelfRecipientId();
1413
1414         final var contact = account.getContactStore().getContact(recipientId);
1415         final var expirationTime = contact != null ? contact.getMessageExpirationTime() : 0;
1416         messageBuilder.withExpiration(expirationTime);
1417
1418         var message = messageBuilder.build();
1419         final var result = sendSelfMessage(message);
1420         return new Pair<>(timestamp, result);
1421     }
1422
1423     private SendMessageResult sendSelfMessage(SignalServiceDataMessage message) throws IOException {
1424         var messageSender = createMessageSender();
1425
1426         var recipient = account.getSelfAddress();
1427
1428         final var unidentifiedAccess = unidentifiedAccessHelper.getAccessFor(resolveRecipient(recipient));
1429         var transcript = new SentTranscriptMessage(Optional.of(recipient),
1430                 message.getTimestamp(),
1431                 message,
1432                 message.getExpiresInSeconds(),
1433                 Map.of(recipient, unidentifiedAccess.isPresent()),
1434                 false);
1435         var syncMessage = SignalServiceSyncMessage.forSentTranscript(transcript);
1436
1437         try {
1438             var startTime = System.currentTimeMillis();
1439             messageSender.sendMessage(syncMessage, unidentifiedAccess);
1440             return SendMessageResult.success(recipient,
1441                     unidentifiedAccess.isPresent(),
1442                     false,
1443                     System.currentTimeMillis() - startTime);
1444         } catch (UntrustedIdentityException e) {
1445             return SendMessageResult.identityFailure(recipient, e.getIdentityKey());
1446         }
1447     }
1448
1449     private SendMessageResult sendMessage(
1450             SignalServiceAddress address, SignalServiceDataMessage message
1451     ) throws IOException {
1452         var messageSender = createMessageSender();
1453
1454         final var recipientId = resolveRecipient(address);
1455         try {
1456             try {
1457                 return messageSender.sendMessage(address, unidentifiedAccessHelper.getAccessFor(recipientId), message);
1458             } catch (UnregisteredUserException e) {
1459                 final var newRecipientId = refreshRegisteredUser(recipientId);
1460                 return messageSender.sendMessage(resolveSignalServiceAddress(newRecipientId),
1461                         unidentifiedAccessHelper.getAccessFor(newRecipientId),
1462                         message);
1463             }
1464         } catch (UntrustedIdentityException e) {
1465             return SendMessageResult.identityFailure(address, e.getIdentityKey());
1466         }
1467     }
1468
1469     private SignalServiceContent decryptMessage(SignalServiceEnvelope envelope) throws InvalidMetadataMessageException, ProtocolInvalidMessageException, ProtocolDuplicateMessageException, ProtocolLegacyMessageException, ProtocolInvalidKeyIdException, InvalidMetadataVersionException, ProtocolInvalidVersionException, ProtocolNoSessionException, ProtocolInvalidKeyException, SelfSendException, UnsupportedDataMessageException, org.whispersystems.libsignal.UntrustedIdentityException {
1470         var cipher = new SignalServiceCipher(account.getSelfAddress(),
1471                 account.getSignalProtocolStore(),
1472                 certificateValidator);
1473         try {
1474             return cipher.decrypt(envelope);
1475         } catch (ProtocolUntrustedIdentityException e) {
1476             if (e.getCause() instanceof org.whispersystems.libsignal.UntrustedIdentityException) {
1477                 throw (org.whispersystems.libsignal.UntrustedIdentityException) e.getCause();
1478             }
1479             throw new AssertionError(e);
1480         }
1481     }
1482
1483     private void handleEndSession(RecipientId recipientId) {
1484         account.getSessionStore().deleteAllSessions(recipientId);
1485     }
1486
1487     private List<HandleAction> handleSignalServiceDataMessage(
1488             SignalServiceDataMessage message,
1489             boolean isSync,
1490             SignalServiceAddress source,
1491             SignalServiceAddress destination,
1492             boolean ignoreAttachments
1493     ) {
1494         var actions = new ArrayList<HandleAction>();
1495         if (message.getGroupContext().isPresent()) {
1496             if (message.getGroupContext().get().getGroupV1().isPresent()) {
1497                 var groupInfo = message.getGroupContext().get().getGroupV1().get();
1498                 var groupId = GroupId.v1(groupInfo.getGroupId());
1499                 var group = getGroup(groupId);
1500                 if (group == null || group instanceof GroupInfoV1) {
1501                     var groupV1 = (GroupInfoV1) group;
1502                     switch (groupInfo.getType()) {
1503                         case UPDATE: {
1504                             if (groupV1 == null) {
1505                                 groupV1 = new GroupInfoV1(groupId);
1506                             }
1507
1508                             if (groupInfo.getAvatar().isPresent()) {
1509                                 var avatar = groupInfo.getAvatar().get();
1510                                 downloadGroupAvatar(avatar, groupV1.getGroupId());
1511                             }
1512
1513                             if (groupInfo.getName().isPresent()) {
1514                                 groupV1.name = groupInfo.getName().get();
1515                             }
1516
1517                             if (groupInfo.getMembers().isPresent()) {
1518                                 groupV1.addMembers(groupInfo.getMembers()
1519                                         .get()
1520                                         .stream()
1521                                         .map(this::resolveRecipient)
1522                                         .collect(Collectors.toSet()));
1523                             }
1524
1525                             account.getGroupStore().updateGroup(groupV1);
1526                             break;
1527                         }
1528                         case DELIVER:
1529                             if (groupV1 == null && !isSync) {
1530                                 actions.add(new SendGroupInfoRequestAction(source, groupId));
1531                             }
1532                             break;
1533                         case QUIT: {
1534                             if (groupV1 != null) {
1535                                 groupV1.removeMember(resolveRecipient(source));
1536                                 account.getGroupStore().updateGroup(groupV1);
1537                             }
1538                             break;
1539                         }
1540                         case REQUEST_INFO:
1541                             if (groupV1 != null && !isSync) {
1542                                 actions.add(new SendGroupInfoAction(source, groupV1.getGroupId()));
1543                             }
1544                             break;
1545                     }
1546                 } else {
1547                     // Received a group v1 message for a v2 group
1548                 }
1549             }
1550             if (message.getGroupContext().get().getGroupV2().isPresent()) {
1551                 final var groupContext = message.getGroupContext().get().getGroupV2().get();
1552                 final var groupMasterKey = groupContext.getMasterKey();
1553
1554                 getOrMigrateGroup(groupMasterKey,
1555                         groupContext.getRevision(),
1556                         groupContext.hasSignedGroupChange() ? groupContext.getSignedGroupChange() : null);
1557             }
1558         }
1559
1560         final var conversationPartnerAddress = isSync ? destination : source;
1561         if (conversationPartnerAddress != null && message.isEndSession()) {
1562             handleEndSession(resolveRecipient(conversationPartnerAddress));
1563         }
1564         if (message.isExpirationUpdate() || message.getBody().isPresent()) {
1565             if (message.getGroupContext().isPresent()) {
1566                 if (message.getGroupContext().get().getGroupV1().isPresent()) {
1567                     var groupInfo = message.getGroupContext().get().getGroupV1().get();
1568                     var group = account.getGroupStore().getOrCreateGroupV1(GroupId.v1(groupInfo.getGroupId()));
1569                     if (group != null) {
1570                         if (group.messageExpirationTime != message.getExpiresInSeconds()) {
1571                             group.messageExpirationTime = message.getExpiresInSeconds();
1572                             account.getGroupStore().updateGroup(group);
1573                         }
1574                     }
1575                 } else if (message.getGroupContext().get().getGroupV2().isPresent()) {
1576                     // disappearing message timer already stored in the DecryptedGroup
1577                 }
1578             } else if (conversationPartnerAddress != null) {
1579                 setExpirationTimer(resolveRecipient(conversationPartnerAddress), message.getExpiresInSeconds());
1580             }
1581         }
1582         if (!ignoreAttachments) {
1583             if (message.getAttachments().isPresent()) {
1584                 for (var attachment : message.getAttachments().get()) {
1585                     downloadAttachment(attachment);
1586                 }
1587             }
1588             if (message.getSharedContacts().isPresent()) {
1589                 for (var contact : message.getSharedContacts().get()) {
1590                     if (contact.getAvatar().isPresent()) {
1591                         downloadAttachment(contact.getAvatar().get().getAttachment());
1592                     }
1593                 }
1594             }
1595         }
1596         if (message.getProfileKey().isPresent() && message.getProfileKey().get().length == 32) {
1597             final ProfileKey profileKey;
1598             try {
1599                 profileKey = new ProfileKey(message.getProfileKey().get());
1600             } catch (InvalidInputException e) {
1601                 throw new AssertionError(e);
1602             }
1603             if (source.matches(account.getSelfAddress())) {
1604                 this.account.setProfileKey(profileKey);
1605             }
1606             this.account.getProfileStore().storeProfileKey(resolveRecipient(source), profileKey);
1607         }
1608         if (message.getPreviews().isPresent()) {
1609             final var previews = message.getPreviews().get();
1610             for (var preview : previews) {
1611                 if (preview.getImage().isPresent()) {
1612                     downloadAttachment(preview.getImage().get());
1613                 }
1614             }
1615         }
1616         if (message.getQuote().isPresent()) {
1617             final var quote = message.getQuote().get();
1618
1619             for (var quotedAttachment : quote.getAttachments()) {
1620                 final var thumbnail = quotedAttachment.getThumbnail();
1621                 if (thumbnail != null) {
1622                     downloadAttachment(thumbnail);
1623                 }
1624             }
1625         }
1626         if (message.getSticker().isPresent()) {
1627             final var messageSticker = message.getSticker().get();
1628             final var stickerPackId = StickerPackId.deserialize(messageSticker.getPackId());
1629             var sticker = account.getStickerStore().getSticker(stickerPackId);
1630             if (sticker == null) {
1631                 sticker = new Sticker(stickerPackId, messageSticker.getPackKey());
1632                 account.getStickerStore().updateSticker(sticker);
1633             }
1634         }
1635         return actions;
1636     }
1637
1638     private GroupInfoV2 getOrMigrateGroup(
1639             final GroupMasterKey groupMasterKey, final int revision, final byte[] signedGroupChange
1640     ) {
1641         final var groupSecretParams = GroupSecretParams.deriveFromMasterKey(groupMasterKey);
1642
1643         var groupId = GroupUtils.getGroupIdV2(groupSecretParams);
1644         var groupInfo = getGroup(groupId);
1645         final GroupInfoV2 groupInfoV2;
1646         if (groupInfo instanceof GroupInfoV1) {
1647             // Received a v2 group message for a v1 group, we need to locally migrate the group
1648             account.getGroupStore().deleteGroupV1(((GroupInfoV1) groupInfo).getGroupId());
1649             groupInfoV2 = new GroupInfoV2(groupId, groupMasterKey);
1650             logger.info("Locally migrated group {} to group v2, id: {}",
1651                     groupInfo.getGroupId().toBase64(),
1652                     groupInfoV2.getGroupId().toBase64());
1653         } else if (groupInfo instanceof GroupInfoV2) {
1654             groupInfoV2 = (GroupInfoV2) groupInfo;
1655         } else {
1656             groupInfoV2 = new GroupInfoV2(groupId, groupMasterKey);
1657         }
1658
1659         if (groupInfoV2.getGroup() == null || groupInfoV2.getGroup().getRevision() < revision) {
1660             DecryptedGroup group = null;
1661             if (signedGroupChange != null
1662                     && groupInfoV2.getGroup() != null
1663                     && groupInfoV2.getGroup().getRevision() + 1 == revision) {
1664                 group = groupHelper.getUpdatedDecryptedGroup(groupInfoV2.getGroup(), signedGroupChange, groupMasterKey);
1665             }
1666             if (group == null) {
1667                 group = groupHelper.getDecryptedGroup(groupSecretParams);
1668             }
1669             if (group != null) {
1670                 storeProfileKeysFromMembers(group);
1671                 final var avatar = group.getAvatar();
1672                 if (avatar != null && !avatar.isEmpty()) {
1673                     downloadGroupAvatar(groupId, groupSecretParams, avatar);
1674                 }
1675             }
1676             groupInfoV2.setGroup(group, this::resolveRecipient);
1677             account.getGroupStore().updateGroup(groupInfoV2);
1678         }
1679
1680         return groupInfoV2;
1681     }
1682
1683     private void storeProfileKeysFromMembers(final DecryptedGroup group) {
1684         for (var member : group.getMembersList()) {
1685             final var address = resolveRecipient(new SignalServiceAddress(UuidUtil.parseOrThrow(member.getUuid()
1686                     .toByteArray()), null));
1687             try {
1688                 account.getProfileStore()
1689                         .storeProfileKey(address, new ProfileKey(member.getProfileKey().toByteArray()));
1690             } catch (InvalidInputException ignored) {
1691             }
1692         }
1693     }
1694
1695     private void retryFailedReceivedMessages(ReceiveMessageHandler handler, boolean ignoreAttachments) {
1696         Set<HandleAction> queuedActions = new HashSet<>();
1697         for (var cachedMessage : account.getMessageCache().getCachedMessages()) {
1698             var actions = retryFailedReceivedMessage(handler, ignoreAttachments, cachedMessage);
1699             if (actions != null) {
1700                 queuedActions.addAll(actions);
1701             }
1702         }
1703         for (var action : queuedActions) {
1704             try {
1705                 action.execute(this);
1706             } catch (Throwable e) {
1707                 logger.warn("Message action failed.", e);
1708             }
1709         }
1710     }
1711
1712     private List<HandleAction> retryFailedReceivedMessage(
1713             final ReceiveMessageHandler handler, final boolean ignoreAttachments, final CachedMessage cachedMessage
1714     ) {
1715         var envelope = cachedMessage.loadEnvelope();
1716         if (envelope == null) {
1717             return null;
1718         }
1719         SignalServiceContent content = null;
1720         List<HandleAction> actions = null;
1721         if (!envelope.isReceipt()) {
1722             try {
1723                 content = decryptMessage(envelope);
1724             } catch (org.whispersystems.libsignal.UntrustedIdentityException e) {
1725                 if (!envelope.hasSource()) {
1726                     final var recipientId = resolveRecipient(((org.whispersystems.libsignal.UntrustedIdentityException) e)
1727                             .getName());
1728                     try {
1729                         account.getMessageCache().replaceSender(cachedMessage, recipientId);
1730                     } catch (IOException ioException) {
1731                         logger.warn("Failed to move cached message to recipient folder: {}", ioException.getMessage());
1732                     }
1733                 }
1734                 return null;
1735             } catch (Exception er) {
1736                 // All other errors are not recoverable, so delete the cached message
1737                 cachedMessage.delete();
1738                 return null;
1739             }
1740             actions = handleMessage(envelope, content, ignoreAttachments);
1741         }
1742         handler.handleMessage(envelope, content, null);
1743         cachedMessage.delete();
1744         return actions;
1745     }
1746
1747     public void receiveMessages(
1748             long timeout,
1749             TimeUnit unit,
1750             boolean returnOnTimeout,
1751             boolean ignoreAttachments,
1752             ReceiveMessageHandler handler
1753     ) throws IOException {
1754         retryFailedReceivedMessages(handler, ignoreAttachments);
1755
1756         Set<HandleAction> queuedActions = null;
1757
1758         final var messagePipe = getOrCreateMessagePipe();
1759
1760         var hasCaughtUpWithOldMessages = false;
1761
1762         while (true) {
1763             SignalServiceEnvelope envelope;
1764             SignalServiceContent content = null;
1765             Exception exception = null;
1766             final CachedMessage[] cachedMessage = {null};
1767             try {
1768                 var result = messagePipe.readOrEmpty(timeout, unit, envelope1 -> {
1769                     final var recipientId = envelope1.hasSource()
1770                             ? resolveRecipient(envelope1.getSourceIdentifier())
1771                             : null;
1772                     // store message on disk, before acknowledging receipt to the server
1773                     cachedMessage[0] = account.getMessageCache().cacheMessage(envelope1, recipientId);
1774                 });
1775                 if (result.isPresent()) {
1776                     envelope = result.get();
1777                 } else {
1778                     // Received indicator that server queue is empty
1779                     hasCaughtUpWithOldMessages = true;
1780
1781                     if (queuedActions != null) {
1782                         for (var action : queuedActions) {
1783                             try {
1784                                 action.execute(this);
1785                             } catch (Throwable e) {
1786                                 logger.warn("Message action failed.", e);
1787                             }
1788                         }
1789                         queuedActions.clear();
1790                         queuedActions = null;
1791                     }
1792
1793                     // Continue to wait another timeout for new messages
1794                     continue;
1795                 }
1796             } catch (TimeoutException e) {
1797                 if (returnOnTimeout) return;
1798                 continue;
1799             }
1800
1801             if (envelope.hasSource()) {
1802                 // Store uuid if we don't have it already
1803                 resolveRecipientTrusted(envelope.getSourceAddress());
1804             }
1805             final var notAGroupMember = isNotAGroupMember(envelope, content);
1806             if (!envelope.isReceipt()) {
1807                 try {
1808                     content = decryptMessage(envelope);
1809                 } catch (Exception e) {
1810                     exception = e;
1811                 }
1812                 var actions = handleMessage(envelope, content, ignoreAttachments);
1813                 if (hasCaughtUpWithOldMessages) {
1814                     for (var action : actions) {
1815                         try {
1816                             action.execute(this);
1817                         } catch (Throwable e) {
1818                             logger.warn("Message action failed.", e);
1819                         }
1820                     }
1821                 } else {
1822                     if (queuedActions == null) {
1823                         queuedActions = new HashSet<>();
1824                     }
1825                     queuedActions.addAll(actions);
1826                 }
1827             }
1828             if (isMessageBlocked(envelope, content)) {
1829                 logger.info("Ignoring a message from blocked user/group: {}", envelope.getTimestamp());
1830             } else if (notAGroupMember) {
1831                 logger.info("Ignoring a message from a non group member: {}", envelope.getTimestamp());
1832             } else {
1833                 handler.handleMessage(envelope, content, exception);
1834             }
1835             if (cachedMessage[0] != null) {
1836                 if (exception instanceof org.whispersystems.libsignal.UntrustedIdentityException) {
1837                     final var recipientId = resolveRecipient(((org.whispersystems.libsignal.UntrustedIdentityException) exception)
1838                             .getName());
1839                     queuedActions.add(new RetrieveProfileAction(recipientId));
1840                     if (!envelope.hasSource()) {
1841                         try {
1842                             cachedMessage[0] = account.getMessageCache().replaceSender(cachedMessage[0], recipientId);
1843                         } catch (IOException ioException) {
1844                             logger.warn("Failed to move cached message to recipient folder: {}",
1845                                     ioException.getMessage());
1846                         }
1847                     }
1848                 } else {
1849                     cachedMessage[0].delete();
1850                 }
1851             }
1852         }
1853     }
1854
1855     private boolean isMessageBlocked(
1856             SignalServiceEnvelope envelope, SignalServiceContent content
1857     ) {
1858         SignalServiceAddress source;
1859         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1860             source = envelope.getSourceAddress();
1861         } else if (content != null) {
1862             source = content.getSender();
1863         } else {
1864             return false;
1865         }
1866         final var recipientId = resolveRecipient(source);
1867         if (isContactBlocked(recipientId)) {
1868             return true;
1869         }
1870
1871         if (content != null && content.getDataMessage().isPresent()) {
1872             var message = content.getDataMessage().get();
1873             if (message.getGroupContext().isPresent()) {
1874                 var groupId = GroupUtils.getGroupId(message.getGroupContext().get());
1875                 var group = getGroup(groupId);
1876                 if (group != null && group.isBlocked()) {
1877                     return true;
1878                 }
1879             }
1880         }
1881         return false;
1882     }
1883
1884     public boolean isContactBlocked(final String identifier) throws InvalidNumberException {
1885         final var recipientId = canonicalizeAndResolveRecipient(identifier);
1886         return isContactBlocked(recipientId);
1887     }
1888
1889     private boolean isContactBlocked(final RecipientId recipientId) {
1890         var sourceContact = account.getContactStore().getContact(recipientId);
1891         return sourceContact != null && sourceContact.isBlocked();
1892     }
1893
1894     private boolean isNotAGroupMember(
1895             SignalServiceEnvelope envelope, SignalServiceContent content
1896     ) {
1897         SignalServiceAddress source;
1898         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1899             source = envelope.getSourceAddress();
1900         } else if (content != null) {
1901             source = content.getSender();
1902         } else {
1903             return false;
1904         }
1905
1906         if (content != null && content.getDataMessage().isPresent()) {
1907             var message = content.getDataMessage().get();
1908             if (message.getGroupContext().isPresent()) {
1909                 if (message.getGroupContext().get().getGroupV1().isPresent()) {
1910                     var groupInfo = message.getGroupContext().get().getGroupV1().get();
1911                     if (groupInfo.getType() == SignalServiceGroup.Type.QUIT) {
1912                         return false;
1913                     }
1914                 }
1915                 var groupId = GroupUtils.getGroupId(message.getGroupContext().get());
1916                 var group = getGroup(groupId);
1917                 if (group != null && !group.isMember(resolveRecipient(source))) {
1918                     return true;
1919                 }
1920             }
1921         }
1922         return false;
1923     }
1924
1925     private List<HandleAction> handleMessage(
1926             SignalServiceEnvelope envelope, SignalServiceContent content, boolean ignoreAttachments
1927     ) {
1928         var actions = new ArrayList<HandleAction>();
1929         if (content != null) {
1930             final SignalServiceAddress sender;
1931             if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1932                 sender = envelope.getSourceAddress();
1933             } else {
1934                 sender = content.getSender();
1935             }
1936
1937             if (content.getDataMessage().isPresent()) {
1938                 var message = content.getDataMessage().get();
1939
1940                 if (content.isNeedsReceipt()) {
1941                     actions.add(new SendReceiptAction(sender, message.getTimestamp()));
1942                 }
1943
1944                 actions.addAll(handleSignalServiceDataMessage(message,
1945                         false,
1946                         sender,
1947                         account.getSelfAddress(),
1948                         ignoreAttachments));
1949             }
1950             if (content.getSyncMessage().isPresent()) {
1951                 account.setMultiDevice(true);
1952                 var syncMessage = content.getSyncMessage().get();
1953                 if (syncMessage.getSent().isPresent()) {
1954                     var message = syncMessage.getSent().get();
1955                     final var destination = message.getDestination().orNull();
1956                     actions.addAll(handleSignalServiceDataMessage(message.getMessage(),
1957                             true,
1958                             sender,
1959                             destination,
1960                             ignoreAttachments));
1961                 }
1962                 if (syncMessage.getRequest().isPresent() && account.isMasterDevice()) {
1963                     var rm = syncMessage.getRequest().get();
1964                     if (rm.isContactsRequest()) {
1965                         actions.add(SendSyncContactsAction.create());
1966                     }
1967                     if (rm.isGroupsRequest()) {
1968                         actions.add(SendSyncGroupsAction.create());
1969                     }
1970                     if (rm.isBlockedListRequest()) {
1971                         actions.add(SendSyncBlockedListAction.create());
1972                     }
1973                     // TODO Handle rm.isConfigurationRequest(); rm.isKeysRequest();
1974                 }
1975                 if (syncMessage.getGroups().isPresent()) {
1976                     File tmpFile = null;
1977                     try {
1978                         tmpFile = IOUtils.createTempFile();
1979                         final var groupsMessage = syncMessage.getGroups().get();
1980                         try (var attachmentAsStream = retrieveAttachmentAsStream(groupsMessage.asPointer(), tmpFile)) {
1981                             var s = new DeviceGroupsInputStream(attachmentAsStream);
1982                             DeviceGroup g;
1983                             while ((g = s.read()) != null) {
1984                                 var syncGroup = account.getGroupStore().getOrCreateGroupV1(GroupId.v1(g.getId()));
1985                                 if (syncGroup != null) {
1986                                     if (g.getName().isPresent()) {
1987                                         syncGroup.name = g.getName().get();
1988                                     }
1989                                     syncGroup.addMembers(g.getMembers()
1990                                             .stream()
1991                                             .map(this::resolveRecipient)
1992                                             .collect(Collectors.toSet()));
1993                                     if (!g.isActive()) {
1994                                         syncGroup.removeMember(account.getSelfRecipientId());
1995                                     } else {
1996                                         // Add ourself to the member set as it's marked as active
1997                                         syncGroup.addMembers(List.of(account.getSelfRecipientId()));
1998                                     }
1999                                     syncGroup.blocked = g.isBlocked();
2000                                     if (g.getColor().isPresent()) {
2001                                         syncGroup.color = g.getColor().get();
2002                                     }
2003
2004                                     if (g.getAvatar().isPresent()) {
2005                                         downloadGroupAvatar(g.getAvatar().get(), syncGroup.getGroupId());
2006                                     }
2007                                     syncGroup.archived = g.isArchived();
2008                                     account.getGroupStore().updateGroup(syncGroup);
2009                                 }
2010                             }
2011                         }
2012                     } catch (Exception e) {
2013                         logger.warn("Failed to handle received sync groups “{}”, ignoring: {}",
2014                                 tmpFile,
2015                                 e.getMessage());
2016                     } finally {
2017                         if (tmpFile != null) {
2018                             try {
2019                                 Files.delete(tmpFile.toPath());
2020                             } catch (IOException e) {
2021                                 logger.warn("Failed to delete received groups temp file “{}”, ignoring: {}",
2022                                         tmpFile,
2023                                         e.getMessage());
2024                             }
2025                         }
2026                     }
2027                 }
2028                 if (syncMessage.getBlockedList().isPresent()) {
2029                     final var blockedListMessage = syncMessage.getBlockedList().get();
2030                     for (var address : blockedListMessage.getAddresses()) {
2031                         setContactBlocked(resolveRecipient(address), true);
2032                     }
2033                     for (var groupId : blockedListMessage.getGroupIds()
2034                             .stream()
2035                             .map(GroupId::unknownVersion)
2036                             .collect(Collectors.toSet())) {
2037                         try {
2038                             setGroupBlocked(groupId, true);
2039                         } catch (GroupNotFoundException e) {
2040                             logger.warn("BlockedListMessage contained groupID that was not found in GroupStore: {}",
2041                                     groupId.toBase64());
2042                         }
2043                     }
2044                 }
2045                 if (syncMessage.getContacts().isPresent()) {
2046                     File tmpFile = null;
2047                     try {
2048                         tmpFile = IOUtils.createTempFile();
2049                         final var contactsMessage = syncMessage.getContacts().get();
2050                         try (var attachmentAsStream = retrieveAttachmentAsStream(contactsMessage.getContactsStream()
2051                                 .asPointer(), tmpFile)) {
2052                             var s = new DeviceContactsInputStream(attachmentAsStream);
2053                             DeviceContact c;
2054                             while ((c = s.read()) != null) {
2055                                 if (c.getAddress().matches(account.getSelfAddress()) && c.getProfileKey().isPresent()) {
2056                                     account.setProfileKey(c.getProfileKey().get());
2057                                 }
2058                                 final var recipientId = resolveRecipientTrusted(c.getAddress());
2059                                 var contact = account.getContactStore().getContact(recipientId);
2060                                 final var builder = contact == null
2061                                         ? Contact.newBuilder()
2062                                         : Contact.newBuilder(contact);
2063                                 if (c.getName().isPresent()) {
2064                                     builder.withName(c.getName().get());
2065                                 }
2066                                 if (c.getColor().isPresent()) {
2067                                     builder.withColor(c.getColor().get());
2068                                 }
2069                                 if (c.getProfileKey().isPresent()) {
2070                                     account.getProfileStore().storeProfileKey(recipientId, c.getProfileKey().get());
2071                                 }
2072                                 if (c.getVerified().isPresent()) {
2073                                     final var verifiedMessage = c.getVerified().get();
2074                                     account.getIdentityKeyStore()
2075                                             .setIdentityTrustLevel(resolveRecipientTrusted(verifiedMessage.getDestination()),
2076                                                     verifiedMessage.getIdentityKey(),
2077                                                     TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
2078                                 }
2079                                 if (c.getExpirationTimer().isPresent()) {
2080                                     builder.withMessageExpirationTime(c.getExpirationTimer().get());
2081                                 }
2082                                 builder.withBlocked(c.isBlocked());
2083                                 builder.withArchived(c.isArchived());
2084                                 account.getContactStore().storeContact(recipientId, builder.build());
2085
2086                                 if (c.getAvatar().isPresent()) {
2087                                     downloadContactAvatar(c.getAvatar().get(), c.getAddress());
2088                                 }
2089                             }
2090                         }
2091                     } catch (Exception e) {
2092                         logger.warn("Failed to handle received sync contacts “{}”, ignoring: {}",
2093                                 tmpFile,
2094                                 e.getMessage());
2095                     } finally {
2096                         if (tmpFile != null) {
2097                             try {
2098                                 Files.delete(tmpFile.toPath());
2099                             } catch (IOException e) {
2100                                 logger.warn("Failed to delete received contacts temp file “{}”, ignoring: {}",
2101                                         tmpFile,
2102                                         e.getMessage());
2103                             }
2104                         }
2105                     }
2106                 }
2107                 if (syncMessage.getVerified().isPresent()) {
2108                     final var verifiedMessage = syncMessage.getVerified().get();
2109                     account.getIdentityKeyStore()
2110                             .setIdentityTrustLevel(resolveRecipientTrusted(verifiedMessage.getDestination()),
2111                                     verifiedMessage.getIdentityKey(),
2112                                     TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
2113                 }
2114                 if (syncMessage.getStickerPackOperations().isPresent()) {
2115                     final var stickerPackOperationMessages = syncMessage.getStickerPackOperations().get();
2116                     for (var m : stickerPackOperationMessages) {
2117                         if (!m.getPackId().isPresent()) {
2118                             continue;
2119                         }
2120                         final var stickerPackId = StickerPackId.deserialize(m.getPackId().get());
2121                         var sticker = account.getStickerStore().getSticker(stickerPackId);
2122                         if (sticker == null) {
2123                             if (!m.getPackKey().isPresent()) {
2124                                 continue;
2125                             }
2126                             sticker = new Sticker(stickerPackId, m.getPackKey().get());
2127                         }
2128                         sticker.setInstalled(!m.getType().isPresent()
2129                                 || m.getType().get() == StickerPackOperationMessage.Type.INSTALL);
2130                         account.getStickerStore().updateSticker(sticker);
2131                     }
2132                 }
2133                 if (syncMessage.getFetchType().isPresent()) {
2134                     switch (syncMessage.getFetchType().get()) {
2135                         case LOCAL_PROFILE:
2136                             getRecipientProfile(account.getSelfRecipientId(), true);
2137                         case STORAGE_MANIFEST:
2138                             // TODO
2139                     }
2140                 }
2141                 if (syncMessage.getKeys().isPresent()) {
2142                     final var keysMessage = syncMessage.getKeys().get();
2143                     if (keysMessage.getStorageService().isPresent()) {
2144                         final var storageKey = keysMessage.getStorageService().get();
2145                         account.setStorageKey(storageKey);
2146                     }
2147                 }
2148                 if (syncMessage.getConfiguration().isPresent()) {
2149                     // TODO
2150                 }
2151             }
2152         }
2153         return actions;
2154     }
2155
2156     private void downloadContactAvatar(SignalServiceAttachment avatar, SignalServiceAddress address) {
2157         try {
2158             avatarStore.storeContactAvatar(address, outputStream -> retrieveAttachment(avatar, outputStream));
2159         } catch (IOException e) {
2160             logger.warn("Failed to download avatar for contact {}, ignoring: {}", address, e.getMessage());
2161         }
2162     }
2163
2164     private void downloadGroupAvatar(SignalServiceAttachment avatar, GroupId groupId) {
2165         try {
2166             avatarStore.storeGroupAvatar(groupId, outputStream -> retrieveAttachment(avatar, outputStream));
2167         } catch (IOException e) {
2168             logger.warn("Failed to download avatar for group {}, ignoring: {}", groupId.toBase64(), e.getMessage());
2169         }
2170     }
2171
2172     private void downloadGroupAvatar(GroupId groupId, GroupSecretParams groupSecretParams, String cdnKey) {
2173         try {
2174             avatarStore.storeGroupAvatar(groupId,
2175                     outputStream -> retrieveGroupV2Avatar(groupSecretParams, cdnKey, outputStream));
2176         } catch (IOException e) {
2177             logger.warn("Failed to download avatar for group {}, ignoring: {}", groupId.toBase64(), e.getMessage());
2178         }
2179     }
2180
2181     private void downloadProfileAvatar(
2182             SignalServiceAddress address, String avatarPath, ProfileKey profileKey
2183     ) {
2184         try {
2185             avatarStore.storeProfileAvatar(address,
2186                     outputStream -> retrieveProfileAvatar(avatarPath, profileKey, outputStream));
2187         } catch (Throwable e) {
2188             logger.warn("Failed to download profile avatar, ignoring: {}", e.getMessage());
2189         }
2190     }
2191
2192     public File getAttachmentFile(SignalServiceAttachmentRemoteId attachmentId) {
2193         return attachmentStore.getAttachmentFile(attachmentId);
2194     }
2195
2196     private void downloadAttachment(final SignalServiceAttachment attachment) {
2197         if (!attachment.isPointer()) {
2198             logger.warn("Invalid state, can't store an attachment stream.");
2199         }
2200
2201         var pointer = attachment.asPointer();
2202         if (pointer.getPreview().isPresent()) {
2203             final var preview = pointer.getPreview().get();
2204             try {
2205                 attachmentStore.storeAttachmentPreview(pointer.getRemoteId(),
2206                         outputStream -> outputStream.write(preview, 0, preview.length));
2207             } catch (IOException e) {
2208                 logger.warn("Failed to download attachment preview, ignoring: {}", e.getMessage());
2209             }
2210         }
2211
2212         try {
2213             attachmentStore.storeAttachment(pointer.getRemoteId(),
2214                     outputStream -> retrieveAttachmentPointer(pointer, outputStream));
2215         } catch (IOException e) {
2216             logger.warn("Failed to download attachment ({}), ignoring: {}", pointer.getRemoteId(), e.getMessage());
2217         }
2218     }
2219
2220     private void retrieveGroupV2Avatar(
2221             GroupSecretParams groupSecretParams, String cdnKey, OutputStream outputStream
2222     ) throws IOException {
2223         var groupOperations = groupsV2Operations.forGroup(groupSecretParams);
2224
2225         var tmpFile = IOUtils.createTempFile();
2226         try (InputStream input = messageReceiver.retrieveGroupsV2ProfileAvatar(cdnKey,
2227                 tmpFile,
2228                 ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
2229             var encryptedData = IOUtils.readFully(input);
2230
2231             var decryptedData = groupOperations.decryptAvatar(encryptedData);
2232             outputStream.write(decryptedData);
2233         } finally {
2234             try {
2235                 Files.delete(tmpFile.toPath());
2236             } catch (IOException e) {
2237                 logger.warn("Failed to delete received group avatar temp file “{}”, ignoring: {}",
2238                         tmpFile,
2239                         e.getMessage());
2240             }
2241         }
2242     }
2243
2244     private void retrieveProfileAvatar(
2245             String avatarPath, ProfileKey profileKey, OutputStream outputStream
2246     ) throws IOException {
2247         var tmpFile = IOUtils.createTempFile();
2248         try (var input = messageReceiver.retrieveProfileAvatar(avatarPath,
2249                 tmpFile,
2250                 profileKey,
2251                 ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
2252             // Use larger buffer size to prevent AssertionError: Need: 12272 but only have: 8192 ...
2253             IOUtils.copyStream(input, outputStream, (int) ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE);
2254         } finally {
2255             try {
2256                 Files.delete(tmpFile.toPath());
2257             } catch (IOException e) {
2258                 logger.warn("Failed to delete received profile avatar temp file “{}”, ignoring: {}",
2259                         tmpFile,
2260                         e.getMessage());
2261             }
2262         }
2263     }
2264
2265     private void retrieveAttachment(
2266             final SignalServiceAttachment attachment, final OutputStream outputStream
2267     ) throws IOException {
2268         if (attachment.isPointer()) {
2269             var pointer = attachment.asPointer();
2270             retrieveAttachmentPointer(pointer, outputStream);
2271         } else {
2272             var stream = attachment.asStream();
2273             IOUtils.copyStream(stream.getInputStream(), outputStream);
2274         }
2275     }
2276
2277     private void retrieveAttachmentPointer(
2278             SignalServiceAttachmentPointer pointer, OutputStream outputStream
2279     ) throws IOException {
2280         var tmpFile = IOUtils.createTempFile();
2281         try (var input = retrieveAttachmentAsStream(pointer, tmpFile)) {
2282             IOUtils.copyStream(input, outputStream);
2283         } catch (MissingConfigurationException | InvalidMessageException e) {
2284             throw new IOException(e);
2285         } finally {
2286             try {
2287                 Files.delete(tmpFile.toPath());
2288             } catch (IOException e) {
2289                 logger.warn("Failed to delete received attachment temp file “{}”, ignoring: {}",
2290                         tmpFile,
2291                         e.getMessage());
2292             }
2293         }
2294     }
2295
2296     private InputStream retrieveAttachmentAsStream(
2297             SignalServiceAttachmentPointer pointer, File tmpFile
2298     ) throws IOException, InvalidMessageException, MissingConfigurationException {
2299         return messageReceiver.retrieveAttachment(pointer, tmpFile, ServiceConfig.MAX_ATTACHMENT_SIZE);
2300     }
2301
2302     void sendGroups() throws IOException, UntrustedIdentityException {
2303         var groupsFile = IOUtils.createTempFile();
2304
2305         try {
2306             try (OutputStream fos = new FileOutputStream(groupsFile)) {
2307                 var out = new DeviceGroupsOutputStream(fos);
2308                 for (var record : getGroups()) {
2309                     if (record instanceof GroupInfoV1) {
2310                         var groupInfo = (GroupInfoV1) record;
2311                         out.write(new DeviceGroup(groupInfo.getGroupId().serialize(),
2312                                 Optional.fromNullable(groupInfo.name),
2313                                 groupInfo.getMembers()
2314                                         .stream()
2315                                         .map(this::resolveSignalServiceAddress)
2316                                         .collect(Collectors.toList()),
2317                                 createGroupAvatarAttachment(groupInfo.getGroupId()),
2318                                 groupInfo.isMember(account.getSelfRecipientId()),
2319                                 Optional.of(groupInfo.messageExpirationTime),
2320                                 Optional.fromNullable(groupInfo.color),
2321                                 groupInfo.blocked,
2322                                 Optional.absent(),
2323                                 groupInfo.archived));
2324                     }
2325                 }
2326             }
2327
2328             if (groupsFile.exists() && groupsFile.length() > 0) {
2329                 try (var groupsFileStream = new FileInputStream(groupsFile)) {
2330                     var attachmentStream = SignalServiceAttachment.newStreamBuilder()
2331                             .withStream(groupsFileStream)
2332                             .withContentType("application/octet-stream")
2333                             .withLength(groupsFile.length())
2334                             .build();
2335
2336                     sendSyncMessage(SignalServiceSyncMessage.forGroups(attachmentStream));
2337                 }
2338             }
2339         } finally {
2340             try {
2341                 Files.delete(groupsFile.toPath());
2342             } catch (IOException e) {
2343                 logger.warn("Failed to delete groups temp file “{}”, ignoring: {}", groupsFile, e.getMessage());
2344             }
2345         }
2346     }
2347
2348     public void sendContacts() throws IOException, UntrustedIdentityException {
2349         var contactsFile = IOUtils.createTempFile();
2350
2351         try {
2352             try (OutputStream fos = new FileOutputStream(contactsFile)) {
2353                 var out = new DeviceContactsOutputStream(fos);
2354                 for (var contactPair : account.getContactStore().getContacts()) {
2355                     final var recipientId = contactPair.first();
2356                     final var contact = contactPair.second();
2357                     final var address = resolveSignalServiceAddress(recipientId);
2358
2359                     var currentIdentity = account.getIdentityKeyStore().getIdentity(recipientId);
2360                     VerifiedMessage verifiedMessage = null;
2361                     if (currentIdentity != null) {
2362                         verifiedMessage = new VerifiedMessage(address,
2363                                 currentIdentity.getIdentityKey(),
2364                                 currentIdentity.getTrustLevel().toVerifiedState(),
2365                                 currentIdentity.getDateAdded().getTime());
2366                     }
2367
2368                     var profileKey = account.getProfileStore().getProfileKey(recipientId);
2369                     out.write(new DeviceContact(address,
2370                             Optional.fromNullable(contact.getName()),
2371                             createContactAvatarAttachment(address),
2372                             Optional.fromNullable(contact.getColor()),
2373                             Optional.fromNullable(verifiedMessage),
2374                             Optional.fromNullable(profileKey),
2375                             contact.isBlocked(),
2376                             Optional.of(contact.getMessageExpirationTime()),
2377                             Optional.absent(),
2378                             contact.isArchived()));
2379                 }
2380
2381                 if (account.getProfileKey() != null) {
2382                     // Send our own profile key as well
2383                     out.write(new DeviceContact(account.getSelfAddress(),
2384                             Optional.absent(),
2385                             Optional.absent(),
2386                             Optional.absent(),
2387                             Optional.absent(),
2388                             Optional.of(account.getProfileKey()),
2389                             false,
2390                             Optional.absent(),
2391                             Optional.absent(),
2392                             false));
2393                 }
2394             }
2395
2396             if (contactsFile.exists() && contactsFile.length() > 0) {
2397                 try (var contactsFileStream = new FileInputStream(contactsFile)) {
2398                     var attachmentStream = SignalServiceAttachment.newStreamBuilder()
2399                             .withStream(contactsFileStream)
2400                             .withContentType("application/octet-stream")
2401                             .withLength(contactsFile.length())
2402                             .build();
2403
2404                     sendSyncMessage(SignalServiceSyncMessage.forContacts(new ContactsMessage(attachmentStream, true)));
2405                 }
2406             }
2407         } finally {
2408             try {
2409                 Files.delete(contactsFile.toPath());
2410             } catch (IOException e) {
2411                 logger.warn("Failed to delete contacts temp file “{}”, ignoring: {}", contactsFile, e.getMessage());
2412             }
2413         }
2414     }
2415
2416     void sendBlockedList() throws IOException, UntrustedIdentityException {
2417         var addresses = new ArrayList<SignalServiceAddress>();
2418         for (var record : account.getContactStore().getContacts()) {
2419             if (record.second().isBlocked()) {
2420                 addresses.add(resolveSignalServiceAddress(record.first()));
2421             }
2422         }
2423         var groupIds = new ArrayList<byte[]>();
2424         for (var record : getGroups()) {
2425             if (record.isBlocked()) {
2426                 groupIds.add(record.getGroupId().serialize());
2427             }
2428         }
2429         sendSyncMessage(SignalServiceSyncMessage.forBlocked(new BlockedListMessage(addresses, groupIds)));
2430     }
2431
2432     private void sendVerifiedMessage(
2433             SignalServiceAddress destination, IdentityKey identityKey, TrustLevel trustLevel
2434     ) throws IOException, UntrustedIdentityException {
2435         var verifiedMessage = new VerifiedMessage(destination,
2436                 identityKey,
2437                 trustLevel.toVerifiedState(),
2438                 System.currentTimeMillis());
2439         sendSyncMessage(SignalServiceSyncMessage.forVerified(verifiedMessage));
2440     }
2441
2442     public List<Pair<RecipientId, Contact>> getContacts() {
2443         return account.getContactStore().getContacts();
2444     }
2445
2446     public String getContactOrProfileName(String number) throws InvalidNumberException {
2447         final var recipientId = canonicalizeAndResolveRecipient(number);
2448         final var recipient = account.getRecipientStore().getRecipient(recipientId);
2449         if (recipient == null) {
2450             return null;
2451         }
2452
2453         if (recipient.getContact() != null && !Util.isEmpty(recipient.getContact().getName())) {
2454             return recipient.getContact().getName();
2455         }
2456
2457         if (recipient.getProfile() != null && recipient.getProfile() != null) {
2458             return recipient.getProfile().getDisplayName();
2459         }
2460
2461         return null;
2462     }
2463
2464     public GroupInfo getGroup(GroupId groupId) {
2465         final var group = account.getGroupStore().getGroup(groupId);
2466         if (group instanceof GroupInfoV2 && ((GroupInfoV2) group).getGroup() == null) {
2467             final var groupSecretParams = GroupSecretParams.deriveFromMasterKey(((GroupInfoV2) group).getMasterKey());
2468             ((GroupInfoV2) group).setGroup(groupHelper.getDecryptedGroup(groupSecretParams), this::resolveRecipient);
2469             account.getGroupStore().updateGroup(group);
2470         }
2471         return group;
2472     }
2473
2474     public List<IdentityInfo> getIdentities() {
2475         return account.getIdentityKeyStore().getIdentities();
2476     }
2477
2478     public List<IdentityInfo> getIdentities(String number) throws InvalidNumberException {
2479         final var identity = account.getIdentityKeyStore().getIdentity(canonicalizeAndResolveRecipient(number));
2480         return identity == null ? List.of() : List.of(identity);
2481     }
2482
2483     /**
2484      * Trust this the identity with this fingerprint
2485      *
2486      * @param name        username of the identity
2487      * @param fingerprint Fingerprint
2488      */
2489     public boolean trustIdentityVerified(String name, byte[] fingerprint) throws InvalidNumberException {
2490         var recipientId = canonicalizeAndResolveRecipient(name);
2491         return trustIdentity(recipientId,
2492                 identityKey -> Arrays.equals(identityKey.serialize(), fingerprint),
2493                 TrustLevel.TRUSTED_VERIFIED);
2494     }
2495
2496     /**
2497      * Trust this the identity with this safety number
2498      *
2499      * @param name         username of the identity
2500      * @param safetyNumber Safety number
2501      */
2502     public boolean trustIdentityVerifiedSafetyNumber(String name, String safetyNumber) throws InvalidNumberException {
2503         var recipientId = canonicalizeAndResolveRecipient(name);
2504         var address = account.getRecipientStore().resolveServiceAddress(recipientId);
2505         return trustIdentity(recipientId,
2506                 identityKey -> safetyNumber.equals(computeSafetyNumber(address, identityKey)),
2507                 TrustLevel.TRUSTED_VERIFIED);
2508     }
2509
2510     /**
2511      * Trust all keys of this identity without verification
2512      *
2513      * @param name username of the identity
2514      */
2515     public boolean trustIdentityAllKeys(String name) throws InvalidNumberException {
2516         var recipientId = canonicalizeAndResolveRecipient(name);
2517         return trustIdentity(recipientId, identityKey -> true, TrustLevel.TRUSTED_UNVERIFIED);
2518     }
2519
2520     private boolean trustIdentity(
2521             RecipientId recipientId, Function<IdentityKey, Boolean> verifier, TrustLevel trustLevel
2522     ) {
2523         var identity = account.getIdentityKeyStore().getIdentity(recipientId);
2524         if (identity == null) {
2525             return false;
2526         }
2527
2528         if (!verifier.apply(identity.getIdentityKey())) {
2529             return false;
2530         }
2531
2532         account.getIdentityKeyStore().setIdentityTrustLevel(recipientId, identity.getIdentityKey(), trustLevel);
2533         try {
2534             var address = account.getRecipientStore().resolveServiceAddress(recipientId);
2535             sendVerifiedMessage(address, identity.getIdentityKey(), trustLevel);
2536         } catch (IOException | UntrustedIdentityException e) {
2537             logger.warn("Failed to send verification sync message: {}", e.getMessage());
2538         }
2539
2540         return true;
2541     }
2542
2543     public String computeSafetyNumber(
2544             SignalServiceAddress theirAddress, IdentityKey theirIdentityKey
2545     ) {
2546         return Utils.computeSafetyNumber(ServiceConfig.capabilities.isUuid(),
2547                 account.getSelfAddress(),
2548                 getIdentityKeyPair().getPublicKey(),
2549                 theirAddress,
2550                 theirIdentityKey);
2551     }
2552
2553     @Deprecated
2554     public SignalServiceAddress canonicalizeAndResolveSignalServiceAddress(String identifier) throws InvalidNumberException {
2555         var canonicalizedNumber = UuidUtil.isUuid(identifier)
2556                 ? identifier
2557                 : PhoneNumberFormatter.formatNumber(identifier, account.getUsername());
2558         return resolveSignalServiceAddress(canonicalizedNumber);
2559     }
2560
2561     @Deprecated
2562     public SignalServiceAddress resolveSignalServiceAddress(String identifier) {
2563         var address = Utils.getSignalServiceAddressFromIdentifier(identifier);
2564
2565         return resolveSignalServiceAddress(address);
2566     }
2567
2568     @Deprecated
2569     public SignalServiceAddress resolveSignalServiceAddress(SignalServiceAddress address) {
2570         if (address.matches(account.getSelfAddress())) {
2571             return account.getSelfAddress();
2572         }
2573
2574         return account.getRecipientStore().resolveServiceAddress(address);
2575     }
2576
2577     public SignalServiceAddress resolveSignalServiceAddress(RecipientId recipientId) {
2578         return account.getRecipientStore().resolveServiceAddress(recipientId);
2579     }
2580
2581     public RecipientId canonicalizeAndResolveRecipient(String identifier) throws InvalidNumberException {
2582         var canonicalizedNumber = UuidUtil.isUuid(identifier)
2583                 ? identifier
2584                 : PhoneNumberFormatter.formatNumber(identifier, account.getUsername());
2585
2586         return resolveRecipient(canonicalizedNumber);
2587     }
2588
2589     private RecipientId resolveRecipient(final String identifier) {
2590         var address = Utils.getSignalServiceAddressFromIdentifier(identifier);
2591
2592         return resolveRecipient(address);
2593     }
2594
2595     public RecipientId resolveRecipient(SignalServiceAddress address) {
2596         return account.getRecipientStore().resolveRecipient(address);
2597     }
2598
2599     private RecipientId resolveRecipientTrusted(SignalServiceAddress address) {
2600         return account.getRecipientStore().resolveRecipientTrusted(address);
2601     }
2602
2603     @Override
2604     public void close() throws IOException {
2605         close(true);
2606     }
2607
2608     void close(boolean closeAccount) throws IOException {
2609         executor.shutdown();
2610
2611         if (messagePipe != null) {
2612             messagePipe.shutdown();
2613             messagePipe = null;
2614         }
2615
2616         if (unidentifiedMessagePipe != null) {
2617             unidentifiedMessagePipe.shutdown();
2618             unidentifiedMessagePipe = null;
2619         }
2620
2621         if (closeAccount && account != null) {
2622             account.close();
2623         }
2624         account = null;
2625     }
2626
2627     public interface ReceiveMessageHandler {
2628
2629         void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent decryptedContent, Throwable e);
2630     }
2631 }