nmode's Git Repositories - signal-cli/blob - lib/src/main/java/org/asamk/signal/manager/Manager.java

   1 /*
   2   Copyright (C) 2015-2021 AsamK and contributors
   3
   4   This program is free software: you can redistribute it and/or modify
   5   it under the terms of the GNU General Public License as published by
   6   the Free Software Foundation, either version 3 of the License, or
   7   (at your option) any later version.
   8
   9   This program is distributed in the hope that it will be useful,
  10   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12   GNU General Public License for more details.
  13
  14   You should have received a copy of the GNU General Public License
  15   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17 package org.asamk.signal.manager;
  18
  19 import org.asamk.signal.manager.api.Device;
  20 import org.asamk.signal.manager.config.ServiceConfig;
  21 import org.asamk.signal.manager.config.ServiceEnvironment;
  22 import org.asamk.signal.manager.config.ServiceEnvironmentConfig;
  23 import org.asamk.signal.manager.groups.GroupId;
  24 import org.asamk.signal.manager.groups.GroupIdV1;
  25 import org.asamk.signal.manager.groups.GroupInviteLinkUrl;
  26 import org.asamk.signal.manager.groups.GroupNotFoundException;
  27 import org.asamk.signal.manager.groups.GroupUtils;
  28 import org.asamk.signal.manager.groups.NotAGroupMemberException;
  29 import org.asamk.signal.manager.helper.GroupHelper;
  30 import org.asamk.signal.manager.helper.PinHelper;
  31 import org.asamk.signal.manager.helper.ProfileHelper;
  32 import org.asamk.signal.manager.helper.UnidentifiedAccessHelper;
  33 import org.asamk.signal.manager.storage.SignalAccount;
  34 import org.asamk.signal.manager.storage.groups.GroupInfo;
  35 import org.asamk.signal.manager.storage.groups.GroupInfoV1;
  36 import org.asamk.signal.manager.storage.groups.GroupInfoV2;
  37 import org.asamk.signal.manager.storage.identities.IdentityInfo;
  38 import org.asamk.signal.manager.storage.messageCache.CachedMessage;
  39 import org.asamk.signal.manager.storage.recipients.Contact;
  40 import org.asamk.signal.manager.storage.recipients.Profile;
  41 import org.asamk.signal.manager.storage.recipients.RecipientId;
  42 import org.asamk.signal.manager.storage.stickers.Sticker;
  43 import org.asamk.signal.manager.storage.stickers.StickerPackId;
  44 import org.asamk.signal.manager.util.AttachmentUtils;
  45 import org.asamk.signal.manager.util.IOUtils;
  46 import org.asamk.signal.manager.util.KeyUtils;
  47 import org.asamk.signal.manager.util.ProfileUtils;
  48 import org.asamk.signal.manager.util.StickerUtils;
  49 import org.asamk.signal.manager.util.Utils;
  50 import org.signal.libsignal.metadata.InvalidMetadataMessageException;
  51 import org.signal.libsignal.metadata.InvalidMetadataVersionException;
  52 import org.signal.libsignal.metadata.ProtocolDuplicateMessageException;
  53 import org.signal.libsignal.metadata.ProtocolInvalidKeyException;
  54 import org.signal.libsignal.metadata.ProtocolInvalidKeyIdException;
  55 import org.signal.libsignal.metadata.ProtocolInvalidMessageException;
  56 import org.signal.libsignal.metadata.ProtocolInvalidVersionException;
  57 import org.signal.libsignal.metadata.ProtocolLegacyMessageException;
  58 import org.signal.libsignal.metadata.ProtocolNoSessionException;
  59 import org.signal.libsignal.metadata.ProtocolUntrustedIdentityException;
  60 import org.signal.libsignal.metadata.SelfSendException;
  61 import org.signal.libsignal.metadata.certificate.CertificateValidator;
  62 import org.signal.storageservice.protos.groups.GroupChange;
  63 import org.signal.storageservice.protos.groups.local.DecryptedGroup;
  64 import org.signal.zkgroup.InvalidInputException;
  65 import org.signal.zkgroup.VerificationFailedException;
  66 import org.signal.zkgroup.groups.GroupMasterKey;
  67 import org.signal.zkgroup.groups.GroupSecretParams;
  68 import org.signal.zkgroup.profiles.ClientZkProfileOperations;
  69 import org.signal.zkgroup.profiles.ProfileKey;
  70 import org.signal.zkgroup.profiles.ProfileKeyCredential;
  71 import org.slf4j.Logger;
  72 import org.slf4j.LoggerFactory;
  73 import org.whispersystems.libsignal.IdentityKey;
  74 import org.whispersystems.libsignal.IdentityKeyPair;
  75 import org.whispersystems.libsignal.InvalidKeyException;
  76 import org.whispersystems.libsignal.InvalidMessageException;
  77 import org.whispersystems.libsignal.ecc.ECPublicKey;
  78 import org.whispersystems.libsignal.state.PreKeyRecord;
  79 import org.whispersystems.libsignal.state.SignedPreKeyRecord;
  80 import org.whispersystems.libsignal.util.Pair;
  81 import org.whispersystems.libsignal.util.guava.Optional;
  82 import org.whispersystems.signalservice.api.SignalServiceAccountManager;
  83 import org.whispersystems.signalservice.api.SignalServiceMessagePipe;
  84 import org.whispersystems.signalservice.api.SignalServiceMessageReceiver;
  85 import org.whispersystems.signalservice.api.SignalServiceMessageSender;
  86 import org.whispersystems.signalservice.api.crypto.SignalServiceCipher;
  87 import org.whispersystems.signalservice.api.crypto.UntrustedIdentityException;
  88 import org.whispersystems.signalservice.api.groupsv2.ClientZkOperations;
  89 import org.whispersystems.signalservice.api.groupsv2.GroupLinkNotActiveException;
  90 import org.whispersystems.signalservice.api.groupsv2.GroupsV2Api;
  91 import org.whispersystems.signalservice.api.groupsv2.GroupsV2AuthorizationString;
  92 import org.whispersystems.signalservice.api.groupsv2.GroupsV2Operations;
  93 import org.whispersystems.signalservice.api.messages.SendMessageResult;
  94 import org.whispersystems.signalservice.api.messages.SignalServiceAttachment;
  95 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentPointer;
  96 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentRemoteId;
  97 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentStream;
  98 import org.whispersystems.signalservice.api.messages.SignalServiceContent;
  99 import org.whispersystems.signalservice.api.messages.SignalServiceDataMessage;
 100 import org.whispersystems.signalservice.api.messages.SignalServiceEnvelope;
 101 import org.whispersystems.signalservice.api.messages.SignalServiceGroup;
 102 import org.whispersystems.signalservice.api.messages.SignalServiceGroupV2;
 103 import org.whispersystems.signalservice.api.messages.SignalServiceReceiptMessage;
 104 import org.whispersystems.signalservice.api.messages.multidevice.BlockedListMessage;
 105 import org.whispersystems.signalservice.api.messages.multidevice.ContactsMessage;
 106 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContact;
 107 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsInputStream;
 108 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsOutputStream;
 109 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroup;
 110 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsInputStream;
 111 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsOutputStream;
 112 import org.whispersystems.signalservice.api.messages.multidevice.RequestMessage;
 113 import org.whispersystems.signalservice.api.messages.multidevice.SentTranscriptMessage;
 114 import org.whispersystems.signalservice.api.messages.multidevice.SignalServiceSyncMessage;
 115 import org.whispersystems.signalservice.api.messages.multidevice.StickerPackOperationMessage;
 116 import org.whispersystems.signalservice.api.messages.multidevice.VerifiedMessage;
 117 import org.whispersystems.signalservice.api.profiles.ProfileAndCredential;
 118 import org.whispersystems.signalservice.api.profiles.SignalServiceProfile;
 119 import org.whispersystems.signalservice.api.push.SignalServiceAddress;
 120 import org.whispersystems.signalservice.api.push.exceptions.MissingConfigurationException;
 121 import org.whispersystems.signalservice.api.push.exceptions.UnregisteredUserException;
 122 import org.whispersystems.signalservice.api.util.DeviceNameUtil;
 123 import org.whispersystems.signalservice.api.util.InvalidNumberException;
 124 import org.whispersystems.signalservice.api.util.PhoneNumberFormatter;
 125 import org.whispersystems.signalservice.api.util.SleepTimer;
 126 import org.whispersystems.signalservice.api.util.UptimeSleepTimer;
 127 import org.whispersystems.signalservice.api.util.UuidUtil;
 128 import org.whispersystems.signalservice.internal.contacts.crypto.Quote;
 129 import org.whispersystems.signalservice.internal.contacts.crypto.UnauthenticatedQuoteException;
 130 import org.whispersystems.signalservice.internal.contacts.crypto.UnauthenticatedResponseException;
 131 import org.whispersystems.signalservice.internal.push.SignalServiceProtos;
 132 import org.whispersystems.signalservice.internal.push.UnsupportedDataMessageException;
 133 import org.whispersystems.signalservice.internal.util.DynamicCredentialsProvider;
 134 import org.whispersystems.signalservice.internal.util.Hex;
 135 import org.whispersystems.signalservice.internal.util.Util;
 136
 137 import java.io.Closeable;
 138 import java.io.File;
 139 import java.io.FileInputStream;
 140 import java.io.FileOutputStream;
 141 import java.io.IOException;
 142 import java.io.InputStream;
 143 import java.io.OutputStream;
 144 import java.net.URI;
 145 import java.net.URISyntaxException;
 146 import java.net.URLEncoder;
 147 import java.nio.charset.StandardCharsets;
 148 import java.nio.file.Files;
 149 import java.security.SignatureException;
 150 import java.util.ArrayList;
 151 import java.util.Arrays;
 152 import java.util.Base64;
 153 import java.util.Collection;
 154 import java.util.Date;
 155 import java.util.HashSet;
 156 import java.util.List;
 157 import java.util.Map;
 158 import java.util.Set;
 159 import java.util.UUID;
 160 import java.util.concurrent.ExecutorService;
 161 import java.util.concurrent.Executors;
 162 import java.util.concurrent.TimeUnit;
 163 import java.util.concurrent.TimeoutException;
 164 import java.util.function.Function;
 165 import java.util.stream.Collectors;
 166
 167 import static org.asamk.signal.manager.config.ServiceConfig.capabilities;
 168
 169 public class Manager implements Closeable {
 170
 171     private final static Logger logger = LoggerFactory.getLogger(Manager.class);
 172
 173     private final CertificateValidator certificateValidator;
 174
 175     private final ServiceEnvironmentConfig serviceEnvironmentConfig;
 176     private final String userAgent;
 177
 178     private SignalAccount account;
 179     private final SignalServiceAccountManager accountManager;
 180     private final GroupsV2Api groupsV2Api;
 181     private final GroupsV2Operations groupsV2Operations;
 182     private final SignalServiceMessageReceiver messageReceiver;
 183     private final ClientZkProfileOperations clientZkProfileOperations;
 184
 185     private final ExecutorService executor = Executors.newCachedThreadPool();
 186
 187     private SignalServiceMessagePipe messagePipe = null;
 188     private SignalServiceMessagePipe unidentifiedMessagePipe = null;
 189
 190     private final UnidentifiedAccessHelper unidentifiedAccessHelper;
 191     private final ProfileHelper profileHelper;
 192     private final GroupHelper groupHelper;
 193     private final PinHelper pinHelper;
 194     private final AvatarStore avatarStore;
 195     private final AttachmentStore attachmentStore;
 196
 197     Manager(
 198             SignalAccount account,
 199             PathConfig pathConfig,
 200             ServiceEnvironmentConfig serviceEnvironmentConfig,
 201             String userAgent
 202     ) {
 203         this.account = account;
 204         this.serviceEnvironmentConfig = serviceEnvironmentConfig;
 205         this.certificateValidator = new CertificateValidator(serviceEnvironmentConfig.getUnidentifiedSenderTrustRoot());
 206         this.userAgent = userAgent;
 207         this.groupsV2Operations = capabilities.isGv2() ? new GroupsV2Operations(ClientZkOperations.create(
 208                 serviceEnvironmentConfig.getSignalServiceConfiguration())) : null;
 209         final SleepTimer timer = new UptimeSleepTimer();
 210         this.accountManager = new SignalServiceAccountManager(serviceEnvironmentConfig.getSignalServiceConfiguration(),
 211                 new DynamicCredentialsProvider(account.getUuid(),
 212                         account.getUsername(),
 213                         account.getPassword(),
 214                         account.getDeviceId()),
 215                 userAgent,
 216                 groupsV2Operations,
 217                 ServiceConfig.AUTOMATIC_NETWORK_RETRY,
 218                 timer);
 219         this.groupsV2Api = accountManager.getGroupsV2Api();
 220         final var keyBackupService = accountManager.getKeyBackupService(ServiceConfig.getIasKeyStore(),
 221                 serviceEnvironmentConfig.getKeyBackupConfig().getEnclaveName(),
 222                 serviceEnvironmentConfig.getKeyBackupConfig().getServiceId(),
 223                 serviceEnvironmentConfig.getKeyBackupConfig().getMrenclave(),
 224                 10);
 225
 226         this.pinHelper = new PinHelper(keyBackupService);
 227         this.clientZkProfileOperations = capabilities.isGv2()
 228                 ? ClientZkOperations.create(serviceEnvironmentConfig.getSignalServiceConfiguration())
 229                 .getProfileOperations()
 230                 : null;
 231         this.messageReceiver = new SignalServiceMessageReceiver(serviceEnvironmentConfig.getSignalServiceConfiguration(),
 232                 account.getUuid(),
 233                 account.getUsername(),
 234                 account.getPassword(),
 235                 account.getDeviceId(),
 236                 userAgent,
 237                 null,
 238                 timer,
 239                 clientZkProfileOperations,
 240                 ServiceConfig.AUTOMATIC_NETWORK_RETRY);
 241
 242         this.unidentifiedAccessHelper = new UnidentifiedAccessHelper(account::getProfileKey,
 243                 account.getProfileStore()::getProfileKey,
 244                 this::getRecipientProfile,
 245                 this::getSenderCertificate);
 246         this.profileHelper = new ProfileHelper(account.getProfileStore()::getProfileKey,
 247                 unidentifiedAccessHelper::getAccessFor,
 248                 unidentified -> unidentified ? getOrCreateUnidentifiedMessagePipe() : getOrCreateMessagePipe(),
 249                 () -> messageReceiver,
 250                 this::resolveSignalServiceAddress);
 251         this.groupHelper = new GroupHelper(this::getRecipientProfileKeyCredential,
 252                 this::getRecipientProfile,
 253                 account::getSelfRecipientId,
 254                 groupsV2Operations,
 255                 groupsV2Api,
 256                 this::getGroupAuthForToday,
 257                 this::resolveSignalServiceAddress);
 258         this.avatarStore = new AvatarStore(pathConfig.getAvatarsPath());
 259         this.attachmentStore = new AttachmentStore(pathConfig.getAttachmentsPath());
 260     }
 261
 262     public String getUsername() {
 263         return account.getUsername();
 264     }
 265
 266     public SignalServiceAddress getSelfAddress() {
 267         return account.getSelfAddress();
 268     }
 269
 270     public RecipientId getSelfRecipientId() {
 271         return account.getSelfRecipientId();
 272     }
 273
 274     private IdentityKeyPair getIdentityKeyPair() {
 275         return account.getIdentityKeyPair();
 276     }
 277
 278     public int getDeviceId() {
 279         return account.getDeviceId();
 280     }
 281
 282     public static Manager init(
 283             String username, File settingsPath, ServiceEnvironment serviceEnvironment, String userAgent
 284     ) throws IOException, NotRegisteredException {
 285         var pathConfig = PathConfig.createDefault(settingsPath);
 286
 287         if (!SignalAccount.userExists(pathConfig.getDataPath(), username)) {
 288             throw new NotRegisteredException();
 289         }
 290
 291         var account = SignalAccount.load(pathConfig.getDataPath(), username, true);
 292
 293         if (!account.isRegistered()) {
 294             throw new NotRegisteredException();
 295         }
 296
 297         final var serviceEnvironmentConfig = ServiceConfig.getServiceEnvironmentConfig(serviceEnvironment, userAgent);
 298
 299         return new Manager(account, pathConfig, serviceEnvironmentConfig, userAgent);
 300     }
 301
 302     public static List<String> getAllLocalUsernames(File settingsPath) {
 303         var pathConfig = PathConfig.createDefault(settingsPath);
 304         final var dataPath = pathConfig.getDataPath();
 305         final var files = dataPath.listFiles();
 306
 307         if (files == null) {
 308             return List.of();
 309         }
 310
 311         return Arrays.stream(files)
 312                 .filter(File::isFile)
 313                 .map(File::getName)
 314                 .filter(file -> PhoneNumberFormatter.isValidNumber(file, null))
 315                 .collect(Collectors.toList());
 316     }
 317
 318     public void checkAccountState() throws IOException {
 319         if (accountManager.getPreKeysCount() < ServiceConfig.PREKEY_MINIMUM_COUNT) {
 320             refreshPreKeys();
 321         }
 322         if (account.getUuid() == null) {
 323             account.setUuid(accountManager.getOwnUuid());
 324         }
 325         updateAccountAttributes();
 326     }
 327
 328     /**
 329      * This is used for checking a set of phone numbers for registration on Signal
 330      *
 331      * @param numbers The set of phone number in question
 332      * @return A map of numbers to booleans. True if registered, false otherwise. Should never be null
 333      * @throws IOException if its unable to get the contacts to check if they're registered
 334      */
 335     public Map<String, Boolean> areUsersRegistered(Set<String> numbers) throws IOException {
 336         // Note "contactDetails" has no optionals. It only gives us info on users who are registered
 337         var contactDetails = getRegisteredUsers(numbers);
 338
 339         var registeredUsers = contactDetails.keySet();
 340
 341         return numbers.stream().collect(Collectors.toMap(x -> x, registeredUsers::contains));
 342     }
 343
 344     public void updateAccountAttributes() throws IOException {
 345         accountManager.setAccountAttributes(account.getEncryptedDeviceName(),
 346                 null,
 347                 account.getLocalRegistrationId(),
 348                 true,
 349                 // set legacy pin only if no KBS master key is set
 350                 account.getPinMasterKey() == null ? account.getRegistrationLockPin() : null,
 351                 account.getPinMasterKey() == null ? null : account.getPinMasterKey().deriveRegistrationLock(),
 352                 account.getSelfUnidentifiedAccessKey(),
 353                 account.isUnrestrictedUnidentifiedAccess(),
 354                 capabilities,
 355                 account.isDiscoverableByPhoneNumber());
 356     }
 357
 358     /**
 359      * @param givenName  if null, the previous givenName will be kept
 360      * @param familyName if null, the previous familyName will be kept
 361      * @param about      if null, the previous about text will be kept
 362      * @param aboutEmoji if null, the previous about emoji will be kept
 363      * @param avatar     if avatar is null the image from the local avatar store is used (if present),
 364      */
 365     public void setProfile(
 366             String givenName, final String familyName, String about, String aboutEmoji, Optional<File> avatar
 367     ) throws IOException {
 368         var profile = getRecipientProfile(account.getSelfRecipientId());
 369         var builder = profile == null ? Profile.newBuilder() : Profile.newBuilder(profile);
 370         if (givenName != null) {
 371             builder.withGivenName(givenName);
 372         }
 373         if (familyName != null) {
 374             builder.withFamilyName(familyName);
 375         }
 376         if (about != null) {
 377             builder.withAbout(about);
 378         }
 379         if (aboutEmoji != null) {
 380             builder.withAboutEmoji(aboutEmoji);
 381         }
 382         var newProfile = builder.build();
 383
 384         try (final var streamDetails = avatar == null
 385                 ? avatarStore.retrieveProfileAvatar(getSelfAddress())
 386                 : avatar.isPresent() ? Utils.createStreamDetailsFromFile(avatar.get()) : null) {
 387             accountManager.setVersionedProfile(account.getUuid(),
 388                     account.getProfileKey(),
 389                     newProfile.getInternalServiceName(),
 390                     newProfile.getAbout() == null ? "" : newProfile.getAbout(),
 391                     newProfile.getAboutEmoji() == null ? "" : newProfile.getAboutEmoji(),
 392                     streamDetails);
 393         }
 394
 395         if (avatar != null) {
 396             if (avatar.isPresent()) {
 397                 avatarStore.storeProfileAvatar(getSelfAddress(),
 398                         outputStream -> IOUtils.copyFileToStream(avatar.get(), outputStream));
 399             } else {
 400                 avatarStore.deleteProfileAvatar(getSelfAddress());
 401             }
 402         }
 403         account.getProfileStore().storeProfile(account.getSelfRecipientId(), newProfile);
 404
 405         try {
 406             sendSyncMessage(SignalServiceSyncMessage.forFetchLatest(SignalServiceSyncMessage.FetchType.LOCAL_PROFILE));
 407         } catch (UntrustedIdentityException ignored) {
 408         }
 409     }
 410
 411     public void unregister() throws IOException {
 412         // When setting an empty GCM id, the Signal-Server also sets the fetchesMessages property to false.
 413         // If this is the master device, other users can't send messages to this number anymore.
 414         // If this is a linked device, other users can still send messages, but this device doesn't receive them anymore.
 415         accountManager.setGcmId(Optional.absent());
 416
 417         account.setRegistered(false);
 418     }
 419
 420     public void deleteAccount() throws IOException {
 421         accountManager.deleteAccount();
 422
 423         account.setRegistered(false);
 424     }
 425
 426     public List<Device> getLinkedDevices() throws IOException {
 427         var devices = accountManager.getDevices();
 428         account.setMultiDevice(devices.size() > 1);
 429         var identityKey = account.getIdentityKeyPair().getPrivateKey();
 430         return devices.stream().map(d -> {
 431             String deviceName = d.getName();
 432             if (deviceName != null) {
 433                 try {
 434                     deviceName = DeviceNameUtil.decryptDeviceName(deviceName, identityKey);
 435                 } catch (IOException e) {
 436                     logger.debug("Failed to decrypt device name, maybe plain text?", e);
 437                 }
 438             }
 439             return new Device(d.getId(), deviceName, d.getCreated(), d.getLastSeen());
 440         }).collect(Collectors.toList());
 441     }
 442
 443     public void removeLinkedDevices(int deviceId) throws IOException {
 444         accountManager.removeDevice(deviceId);
 445         var devices = accountManager.getDevices();
 446         account.setMultiDevice(devices.size() > 1);
 447     }
 448
 449     public void addDeviceLink(URI linkUri) throws IOException, InvalidKeyException {
 450         var info = DeviceLinkInfo.parseDeviceLinkUri(linkUri);
 451
 452         addDevice(info.deviceIdentifier, info.deviceKey);
 453     }
 454
 455     private void addDevice(String deviceIdentifier, ECPublicKey deviceKey) throws IOException, InvalidKeyException {
 456         var identityKeyPair = getIdentityKeyPair();
 457         var verificationCode = accountManager.getNewDeviceVerificationCode();
 458
 459         accountManager.addDevice(deviceIdentifier,
 460                 deviceKey,
 461                 identityKeyPair,
 462                 Optional.of(account.getProfileKey().serialize()),
 463                 verificationCode);
 464         account.setMultiDevice(true);
 465     }
 466
 467     public void setRegistrationLockPin(Optional<String> pin) throws IOException, UnauthenticatedResponseException {
 468         if (!account.isMasterDevice()) {
 469             throw new RuntimeException("Only master device can set a PIN");
 470         }
 471         if (pin.isPresent()) {
 472             final var masterKey = account.getPinMasterKey() != null
 473                     ? account.getPinMasterKey()
 474                     : KeyUtils.createMasterKey();
 475
 476             pinHelper.setRegistrationLockPin(pin.get(), masterKey);
 477
 478             account.setRegistrationLockPin(pin.get(), masterKey);
 479         } else {
 480             // Remove legacy registration lock
 481             accountManager.removeRegistrationLockV1();
 482
 483             // Remove KBS Pin
 484             pinHelper.removeRegistrationLockPin();
 485
 486             account.setRegistrationLockPin(null, null);
 487         }
 488     }
 489
 490     void refreshPreKeys() throws IOException {
 491         var oneTimePreKeys = generatePreKeys();
 492         final var identityKeyPair = getIdentityKeyPair();
 493         var signedPreKeyRecord = generateSignedPreKey(identityKeyPair);
 494
 495         accountManager.setPreKeys(identityKeyPair.getPublicKey(), signedPreKeyRecord, oneTimePreKeys);
 496     }
 497
 498     private List<PreKeyRecord> generatePreKeys() {
 499         final var offset = account.getPreKeyIdOffset();
 500
 501         var records = KeyUtils.generatePreKeyRecords(offset, ServiceConfig.PREKEY_BATCH_SIZE);
 502         account.addPreKeys(records);
 503
 504         return records;
 505     }
 506
 507     private SignedPreKeyRecord generateSignedPreKey(IdentityKeyPair identityKeyPair) {
 508         final var signedPreKeyId = account.getNextSignedPreKeyId();
 509
 510         var record = KeyUtils.generateSignedPreKeyRecord(identityKeyPair, signedPreKeyId);
 511         account.addSignedPreKey(record);
 512
 513         return record;
 514     }
 515
 516     private SignalServiceMessagePipe getOrCreateMessagePipe() {
 517         if (messagePipe == null) {
 518             messagePipe = messageReceiver.createMessagePipe();
 519         }
 520         return messagePipe;
 521     }
 522
 523     private SignalServiceMessagePipe getOrCreateUnidentifiedMessagePipe() {
 524         if (unidentifiedMessagePipe == null) {
 525             unidentifiedMessagePipe = messageReceiver.createUnidentifiedMessagePipe();
 526         }
 527         return unidentifiedMessagePipe;
 528     }
 529
 530     private SignalServiceMessageSender createMessageSender() {
 531         return new SignalServiceMessageSender(serviceEnvironmentConfig.getSignalServiceConfiguration(),
 532                 account.getUuid(),
 533                 account.getUsername(),
 534                 account.getPassword(),
 535                 account.getDeviceId(),
 536                 account.getSignalProtocolStore(),
 537                 userAgent,
 538                 account.isMultiDevice(),
 539                 Optional.fromNullable(messagePipe),
 540                 Optional.fromNullable(unidentifiedMessagePipe),
 541                 Optional.absent(),
 542                 clientZkProfileOperations,
 543                 executor,
 544                 ServiceConfig.MAX_ENVELOPE_SIZE,
 545                 ServiceConfig.AUTOMATIC_NETWORK_RETRY);
 546     }
 547
 548     public Profile getRecipientProfile(
 549             RecipientId recipientId
 550     ) {
 551         return getRecipientProfile(recipientId, false);
 552     }
 553
 554     private final Set<RecipientId> pendingProfileRequest = new HashSet<>();
 555
 556     Profile getRecipientProfile(
 557             RecipientId recipientId, boolean force
 558     ) {
 559         var profile = account.getProfileStore().getProfile(recipientId);
 560
 561         var now = new Date().getTime();
 562         // Profiles are cached for 24h before retrieving them again, unless forced
 563         if (!force && profile != null && now - profile.getLastUpdateTimestamp() < 24 * 60 * 60 * 1000) {
 564             return profile;
 565         }
 566
 567         synchronized (pendingProfileRequest) {
 568             if (pendingProfileRequest.contains(recipientId)) {
 569                 return profile;
 570             }
 571             pendingProfileRequest.add(recipientId);
 572         }
 573         final SignalServiceProfile encryptedProfile;
 574         try {
 575             encryptedProfile = retrieveEncryptedProfile(recipientId);
 576         } finally {
 577             synchronized (pendingProfileRequest) {
 578                 pendingProfileRequest.remove(recipientId);
 579             }
 580         }
 581         if (encryptedProfile == null) {
 582             return null;
 583         }
 584
 585         var profileKey = account.getProfileStore().getProfileKey(recipientId);
 586         if (profileKey == null) {
 587             profile = new Profile(new Date().getTime(),
 588                     null,
 589                     null,
 590                     null,
 591                     null,
 592                     ProfileUtils.getUnidentifiedAccessMode(encryptedProfile, null),
 593                     ProfileUtils.getCapabilities(encryptedProfile));
 594         } else {
 595             profile = decryptProfileAndDownloadAvatar(recipientId, profileKey, encryptedProfile);
 596         }
 597         account.getProfileStore().storeProfile(recipientId, profile);
 598
 599         return profile;
 600     }
 601
 602     private SignalServiceProfile retrieveEncryptedProfile(RecipientId recipientId) {
 603         try {
 604             return retrieveProfileAndCredential(recipientId, SignalServiceProfile.RequestType.PROFILE).getProfile();
 605         } catch (IOException e) {
 606             logger.warn("Failed to retrieve profile, ignoring: {}", e.getMessage());
 607             return null;
 608         }
 609     }
 610
 611     private ProfileAndCredential retrieveProfileAndCredential(
 612             final RecipientId recipientId, final SignalServiceProfile.RequestType requestType
 613     ) throws IOException {
 614         final var profileAndCredential = profileHelper.retrieveProfileSync(recipientId, requestType);
 615         final var profile = profileAndCredential.getProfile();
 616
 617         try {
 618             var newIdentity = account.getIdentityKeyStore()
 619                     .saveIdentity(recipientId,
 620                             new IdentityKey(Base64.getDecoder().decode(profile.getIdentityKey())),
 621                             new Date());
 622
 623             if (newIdentity) {
 624                 account.getSessionStore().archiveSessions(recipientId);
 625             }
 626         } catch (InvalidKeyException ignored) {
 627             logger.warn("Got invalid identity key in profile for {}",
 628                     resolveSignalServiceAddress(recipientId).getLegacyIdentifier());
 629         }
 630         return profileAndCredential;
 631     }
 632
 633     private ProfileKeyCredential getRecipientProfileKeyCredential(RecipientId recipientId) {
 634         var profileKeyCredential = account.getProfileStore().getProfileKeyCredential(recipientId);
 635         if (profileKeyCredential != null) {
 636             return profileKeyCredential;
 637         }
 638
 639         ProfileAndCredential profileAndCredential;
 640         try {
 641             profileAndCredential = retrieveProfileAndCredential(recipientId,
 642                     SignalServiceProfile.RequestType.PROFILE_AND_CREDENTIAL);
 643         } catch (IOException e) {
 644             logger.warn("Failed to retrieve profile key credential, ignoring: {}", e.getMessage());
 645             return null;
 646         }
 647
 648         profileKeyCredential = profileAndCredential.getProfileKeyCredential().orNull();
 649         account.getProfileStore().storeProfileKeyCredential(recipientId, profileKeyCredential);
 650
 651         var profileKey = account.getProfileStore().getProfileKey(recipientId);
 652         if (profileKey != null) {
 653             final var profile = decryptProfileAndDownloadAvatar(recipientId,
 654                     profileKey,
 655                     profileAndCredential.getProfile());
 656             account.getProfileStore().storeProfile(recipientId, profile);
 657         }
 658
 659         return profileKeyCredential;
 660     }
 661
 662     private Profile decryptProfileAndDownloadAvatar(
 663             final RecipientId recipientId, final ProfileKey profileKey, final SignalServiceProfile encryptedProfile
 664     ) {
 665         if (encryptedProfile.getAvatar() != null) {
 666             downloadProfileAvatar(resolveSignalServiceAddress(recipientId), encryptedProfile.getAvatar(), profileKey);
 667         }
 668
 669         return ProfileUtils.decryptProfile(profileKey, encryptedProfile);
 670     }
 671
 672     private Optional<SignalServiceAttachmentStream> createGroupAvatarAttachment(GroupId groupId) throws IOException {
 673         final var streamDetails = avatarStore.retrieveGroupAvatar(groupId);
 674         if (streamDetails == null) {
 675             return Optional.absent();
 676         }
 677
 678         return Optional.of(AttachmentUtils.createAttachment(streamDetails, Optional.absent()));
 679     }
 680
 681     private Optional<SignalServiceAttachmentStream> createContactAvatarAttachment(SignalServiceAddress address) throws IOException {
 682         final var streamDetails = avatarStore.retrieveContactAvatar(address);
 683         if (streamDetails == null) {
 684             return Optional.absent();
 685         }
 686
 687         return Optional.of(AttachmentUtils.createAttachment(streamDetails, Optional.absent()));
 688     }
 689
 690     private GroupInfo getGroupForSending(GroupId groupId) throws GroupNotFoundException, NotAGroupMemberException {
 691         var g = getGroup(groupId);
 692         if (g == null) {
 693             throw new GroupNotFoundException(groupId);
 694         }
 695         if (!g.isMember(account.getSelfRecipientId())) {
 696             throw new NotAGroupMemberException(groupId, g.getTitle());
 697         }
 698         return g;
 699     }
 700
 701     private GroupInfo getGroupForUpdating(GroupId groupId) throws GroupNotFoundException, NotAGroupMemberException {
 702         var g = getGroup(groupId);
 703         if (g == null) {
 704             throw new GroupNotFoundException(groupId);
 705         }
 706         if (!g.isMember(account.getSelfRecipientId()) && !g.isPendingMember(account.getSelfRecipientId())) {
 707             throw new NotAGroupMemberException(groupId, g.getTitle());
 708         }
 709         return g;
 710     }
 711
 712     public List<GroupInfo> getGroups() {
 713         return account.getGroupStore().getGroups();
 714     }
 715
 716     public Pair<Long, List<SendMessageResult>> sendGroupMessage(
 717             String messageText, List<String> attachments, GroupId groupId
 718     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 719         final var messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
 720         if (attachments != null) {
 721             messageBuilder.withAttachments(AttachmentUtils.getSignalServiceAttachments(attachments));
 722         }
 723
 724         return sendGroupMessage(messageBuilder, groupId);
 725     }
 726
 727     public Pair<Long, List<SendMessageResult>> sendGroupMessageReaction(
 728             String emoji, boolean remove, String targetAuthor, long targetSentTimestamp, GroupId groupId
 729     ) throws IOException, InvalidNumberException, NotAGroupMemberException, GroupNotFoundException {
 730         var targetAuthorRecipientId = canonicalizeAndResolveRecipient(targetAuthor);
 731         var reaction = new SignalServiceDataMessage.Reaction(emoji,
 732                 remove,
 733                 resolveSignalServiceAddress(targetAuthorRecipientId),
 734                 targetSentTimestamp);
 735         final var messageBuilder = SignalServiceDataMessage.newBuilder().withReaction(reaction);
 736
 737         return sendGroupMessage(messageBuilder, groupId);
 738     }
 739
 740     public Pair<Long, List<SendMessageResult>> sendGroupMessage(
 741             SignalServiceDataMessage.Builder messageBuilder, GroupId groupId
 742     ) throws IOException, GroupNotFoundException, NotAGroupMemberException {
 743         final var g = getGroupForSending(groupId);
 744
 745         GroupUtils.setGroupContext(messageBuilder, g);
 746         messageBuilder.withExpiration(g.getMessageExpirationTime());
 747
 748         return sendMessage(messageBuilder, g.getMembersWithout(account.getSelfRecipientId()));
 749     }
 750
 751     public Pair<Long, List<SendMessageResult>> sendQuitGroupMessage(GroupId groupId) throws GroupNotFoundException, IOException, NotAGroupMemberException {
 752         SignalServiceDataMessage.Builder messageBuilder;
 753
 754         final var g = getGroupForUpdating(groupId);
 755         if (g instanceof GroupInfoV1) {
 756             var groupInfoV1 = (GroupInfoV1) g;
 757             var group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.QUIT).withId(groupId.serialize()).build();
 758             messageBuilder = SignalServiceDataMessage.newBuilder().asGroupMessage(group);
 759             groupInfoV1.removeMember(account.getSelfRecipientId());
 760             account.getGroupStore().updateGroup(groupInfoV1);
 761         } else {
 762             final var groupInfoV2 = (GroupInfoV2) g;
 763             final var groupGroupChangePair = groupHelper.leaveGroup(groupInfoV2);
 764             groupInfoV2.setGroup(groupGroupChangePair.first(), this::resolveRecipient);
 765             messageBuilder = getGroupUpdateMessageBuilder(groupInfoV2, groupGroupChangePair.second().toByteArray());
 766             account.getGroupStore().updateGroup(groupInfoV2);
 767         }
 768
 769         return sendMessage(messageBuilder, g.getMembersWithout(account.getSelfRecipientId()));
 770     }
 771
 772     public Pair<GroupId, List<SendMessageResult>> updateGroup(
 773             GroupId groupId, String name, List<String> members, File avatarFile
 774     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, InvalidNumberException, NotAGroupMemberException {
 775         return sendUpdateGroupMessage(groupId,
 776                 name,
 777                 members == null ? null : getSignalServiceAddresses(members),
 778                 avatarFile);
 779     }
 780
 781     private Pair<GroupId, List<SendMessageResult>> sendUpdateGroupMessage(
 782             GroupId groupId, String name, Set<RecipientId> members, File avatarFile
 783     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 784         GroupInfo g;
 785         SignalServiceDataMessage.Builder messageBuilder;
 786         if (groupId == null) {
 787             // Create new group
 788             var gv2Pair = groupHelper.createGroupV2(name == null ? "" : name,
 789                     members == null ? Set.of() : members,
 790                     avatarFile);
 791             if (gv2Pair == null) {
 792                 var gv1 = new GroupInfoV1(GroupIdV1.createRandom());
 793                 gv1.addMembers(List.of(account.getSelfRecipientId()));
 794                 updateGroupV1(gv1, name, members, avatarFile);
 795                 messageBuilder = getGroupUpdateMessageBuilder(gv1);
 796                 g = gv1;
 797             } else {
 798                 final var gv2 = gv2Pair.first();
 799                 final var decryptedGroup = gv2Pair.second();
 800
 801                 gv2.setGroup(decryptedGroup, this::resolveRecipient);
 802                 if (avatarFile != null) {
 803                     avatarStore.storeGroupAvatar(gv2.getGroupId(),
 804                             outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
 805                 }
 806                 messageBuilder = getGroupUpdateMessageBuilder(gv2, null);
 807                 g = gv2;
 808             }
 809         } else {
 810             var group = getGroupForUpdating(groupId);
 811             if (group instanceof GroupInfoV2) {
 812                 final var groupInfoV2 = (GroupInfoV2) group;
 813
 814                 Pair<Long, List<SendMessageResult>> result = null;
 815                 if (groupInfoV2.isPendingMember(account.getSelfRecipientId())) {
 816                     var groupGroupChangePair = groupHelper.acceptInvite(groupInfoV2);
 817                     result = sendUpdateGroupMessage(groupInfoV2,
 818                             groupGroupChangePair.first(),
 819                             groupGroupChangePair.second());
 820                 }
 821
 822                 if (members != null) {
 823                     final var newMembers = new HashSet<>(members);
 824                     newMembers.removeAll(group.getMembers());
 825                     if (newMembers.size() > 0) {
 826                         var groupGroupChangePair = groupHelper.updateGroupV2(groupInfoV2, newMembers);
 827                         result = sendUpdateGroupMessage(groupInfoV2,
 828                                 groupGroupChangePair.first(),
 829                                 groupGroupChangePair.second());
 830                     }
 831                 }
 832                 if (result == null || name != null || avatarFile != null) {
 833                     var groupGroupChangePair = groupHelper.updateGroupV2(groupInfoV2, name, avatarFile);
 834                     if (avatarFile != null) {
 835                         avatarStore.storeGroupAvatar(groupInfoV2.getGroupId(),
 836                                 outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
 837                     }
 838                     result = sendUpdateGroupMessage(groupInfoV2,
 839                             groupGroupChangePair.first(),
 840                             groupGroupChangePair.second());
 841                 }
 842
 843                 return new Pair<>(group.getGroupId(), result.second());
 844             } else {
 845                 var gv1 = (GroupInfoV1) group;
 846                 updateGroupV1(gv1, name, members, avatarFile);
 847                 messageBuilder = getGroupUpdateMessageBuilder(gv1);
 848                 g = gv1;
 849             }
 850         }
 851
 852         account.getGroupStore().updateGroup(g);
 853
 854         final var result = sendMessage(messageBuilder,
 855                 g.getMembersIncludingPendingWithout(account.getSelfRecipientId()));
 856         return new Pair<>(g.getGroupId(), result.second());
 857     }
 858
 859     private void updateGroupV1(
 860             final GroupInfoV1 g, final String name, final Collection<RecipientId> members, final File avatarFile
 861     ) throws IOException {
 862         if (name != null) {
 863             g.name = name;
 864         }
 865
 866         if (members != null) {
 867             final var newMemberAddresses = members.stream()
 868                     .filter(member -> !g.isMember(member))
 869                     .map(this::resolveSignalServiceAddress)
 870                     .collect(Collectors.toList());
 871             final var newE164Members = new HashSet<String>();
 872             for (var member : newMemberAddresses) {
 873                 if (!member.getNumber().isPresent()) {
 874                     continue;
 875                 }
 876                 newE164Members.add(member.getNumber().get());
 877             }
 878
 879             final var registeredUsers = getRegisteredUsers(newE164Members);
 880             if (registeredUsers.size() != newE164Members.size()) {
 881                 // Some of the new members are not registered on Signal
 882                 newE164Members.removeAll(registeredUsers.keySet());
 883                 throw new IOException("Failed to add members "
 884                         + String.join(", ", newE164Members)
 885                         + " to group: Not registered on Signal");
 886             }
 887
 888             g.addMembers(members);
 889         }
 890
 891         if (avatarFile != null) {
 892             avatarStore.storeGroupAvatar(g.getGroupId(),
 893                     outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
 894         }
 895     }
 896
 897     public Pair<GroupId, List<SendMessageResult>> joinGroup(
 898             GroupInviteLinkUrl inviteLinkUrl
 899     ) throws IOException, GroupLinkNotActiveException {
 900         return sendJoinGroupMessage(inviteLinkUrl);
 901     }
 902
 903     private Pair<GroupId, List<SendMessageResult>> sendJoinGroupMessage(
 904             GroupInviteLinkUrl inviteLinkUrl
 905     ) throws IOException, GroupLinkNotActiveException {
 906         final var groupJoinInfo = groupHelper.getDecryptedGroupJoinInfo(inviteLinkUrl.getGroupMasterKey(),
 907                 inviteLinkUrl.getPassword());
 908         final var groupChange = groupHelper.joinGroup(inviteLinkUrl.getGroupMasterKey(),
 909                 inviteLinkUrl.getPassword(),
 910                 groupJoinInfo);
 911         final var group = getOrMigrateGroup(inviteLinkUrl.getGroupMasterKey(),
 912                 groupJoinInfo.getRevision() + 1,
 913                 groupChange.toByteArray());
 914
 915         if (group.getGroup() == null) {
 916             // Only requested member, can't send update to group members
 917             return new Pair<>(group.getGroupId(), List.of());
 918         }
 919
 920         final var result = sendUpdateGroupMessage(group, group.getGroup(), groupChange);
 921
 922         return new Pair<>(group.getGroupId(), result.second());
 923     }
 924
 925     private static int currentTimeDays() {
 926         return (int) TimeUnit.MILLISECONDS.toDays(System.currentTimeMillis());
 927     }
 928
 929     private GroupsV2AuthorizationString getGroupAuthForToday(
 930             final GroupSecretParams groupSecretParams
 931     ) throws IOException {
 932         final var today = currentTimeDays();
 933         // Returns credentials for the next 7 days
 934         final var credentials = groupsV2Api.getCredentials(today);
 935         // TODO cache credentials until they expire
 936         var authCredentialResponse = credentials.get(today);
 937         try {
 938             return groupsV2Api.getGroupsV2AuthorizationString(account.getUuid(),
 939                     today,
 940                     groupSecretParams,
 941                     authCredentialResponse);
 942         } catch (VerificationFailedException e) {
 943             throw new IOException(e);
 944         }
 945     }
 946
 947     private Pair<Long, List<SendMessageResult>> sendUpdateGroupMessage(
 948             GroupInfoV2 group, DecryptedGroup newDecryptedGroup, GroupChange groupChange
 949     ) throws IOException {
 950         group.setGroup(newDecryptedGroup, this::resolveRecipient);
 951         final var messageBuilder = getGroupUpdateMessageBuilder(group, groupChange.toByteArray());
 952         account.getGroupStore().updateGroup(group);
 953         return sendMessage(messageBuilder, group.getMembersIncludingPendingWithout(account.getSelfRecipientId()));
 954     }
 955
 956     Pair<Long, List<SendMessageResult>> sendGroupInfoMessage(
 957             GroupIdV1 groupId, SignalServiceAddress recipient
 958     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, AttachmentInvalidException {
 959         GroupInfoV1 g;
 960         var group = getGroupForSending(groupId);
 961         if (!(group instanceof GroupInfoV1)) {
 962             throw new RuntimeException("Received an invalid group request for a v2 group!");
 963         }
 964         g = (GroupInfoV1) group;
 965
 966         final var recipientId = resolveRecipient(recipient);
 967         if (!g.isMember(recipientId)) {
 968             throw new NotAGroupMemberException(groupId, g.name);
 969         }
 970
 971         var messageBuilder = getGroupUpdateMessageBuilder(g);
 972
 973         // Send group message only to the recipient who requested it
 974         return sendMessage(messageBuilder, Set.of(recipientId));
 975     }
 976
 977     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfoV1 g) throws AttachmentInvalidException {
 978         var group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.UPDATE)
 979                 .withId(g.getGroupId().serialize())
 980                 .withName(g.name)
 981                 .withMembers(g.getMembers()
 982                         .stream()
 983                         .map(this::resolveSignalServiceAddress)
 984                         .collect(Collectors.toList()));
 985
 986         try {
 987             final var attachment = createGroupAvatarAttachment(g.getGroupId());
 988             if (attachment.isPresent()) {
 989                 group.withAvatar(attachment.get());
 990             }
 991         } catch (IOException e) {
 992             throw new AttachmentInvalidException(g.getGroupId().toBase64(), e);
 993         }
 994
 995         return SignalServiceDataMessage.newBuilder()
 996                 .asGroupMessage(group.build())
 997                 .withExpiration(g.getMessageExpirationTime());
 998     }
 999
1000     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfoV2 g, byte[] signedGroupChange) {
1001         var group = SignalServiceGroupV2.newBuilder(g.getMasterKey())
1002                 .withRevision(g.getGroup().getRevision())
1003                 .withSignedGroupChange(signedGroupChange);
1004         return SignalServiceDataMessage.newBuilder()
1005                 .asGroupMessage(group.build())
1006                 .withExpiration(g.getMessageExpirationTime());
1007     }
1008
1009     Pair<Long, List<SendMessageResult>> sendGroupInfoRequest(
1010             GroupIdV1 groupId, SignalServiceAddress recipient
1011     ) throws IOException {
1012         var group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.REQUEST_INFO).withId(groupId.serialize());
1013
1014         var messageBuilder = SignalServiceDataMessage.newBuilder().asGroupMessage(group.build());
1015
1016         // Send group info request message to the recipient who sent us a message with this groupId
1017         return sendMessage(messageBuilder, Set.of(resolveRecipient(recipient)));
1018     }
1019
1020     void sendReceipt(
1021             SignalServiceAddress remoteAddress, long messageId
1022     ) throws IOException, UntrustedIdentityException {
1023         var receiptMessage = new SignalServiceReceiptMessage(SignalServiceReceiptMessage.Type.DELIVERY,
1024                 List.of(messageId),
1025                 System.currentTimeMillis());
1026
1027         createMessageSender().sendReceipt(remoteAddress,
1028                 unidentifiedAccessHelper.getAccessFor(resolveRecipient(remoteAddress)),
1029                 receiptMessage);
1030     }
1031
1032     public Pair<Long, List<SendMessageResult>> sendMessage(
1033             String messageText, List<String> attachments, List<String> recipients
1034     ) throws IOException, AttachmentInvalidException, InvalidNumberException {
1035         final var messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
1036         if (attachments != null) {
1037             var attachmentStreams = AttachmentUtils.getSignalServiceAttachments(attachments);
1038
1039             // Upload attachments here, so we only upload once even for multiple recipients
1040             var messageSender = createMessageSender();
1041             var attachmentPointers = new ArrayList<SignalServiceAttachment>(attachmentStreams.size());
1042             for (var attachment : attachmentStreams) {
1043                 if (attachment.isStream()) {
1044                     attachmentPointers.add(messageSender.uploadAttachment(attachment.asStream()));
1045                 } else if (attachment.isPointer()) {
1046                     attachmentPointers.add(attachment.asPointer());
1047                 }
1048             }
1049
1050             messageBuilder.withAttachments(attachmentPointers);
1051         }
1052         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
1053     }
1054
1055     public Pair<Long, SendMessageResult> sendSelfMessage(
1056             String messageText, List<String> attachments
1057     ) throws IOException, AttachmentInvalidException {
1058         final var messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
1059         if (attachments != null) {
1060             messageBuilder.withAttachments(AttachmentUtils.getSignalServiceAttachments(attachments));
1061         }
1062         return sendSelfMessage(messageBuilder);
1063     }
1064
1065     public Pair<Long, List<SendMessageResult>> sendRemoteDeleteMessage(
1066             long targetSentTimestamp, List<String> recipients
1067     ) throws IOException, InvalidNumberException {
1068         var delete = new SignalServiceDataMessage.RemoteDelete(targetSentTimestamp);
1069         final var messageBuilder = SignalServiceDataMessage.newBuilder().withRemoteDelete(delete);
1070         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
1071     }
1072
1073     public Pair<Long, List<SendMessageResult>> sendGroupRemoteDeleteMessage(
1074             long targetSentTimestamp, GroupId groupId
1075     ) throws IOException, NotAGroupMemberException, GroupNotFoundException {
1076         var delete = new SignalServiceDataMessage.RemoteDelete(targetSentTimestamp);
1077         final var messageBuilder = SignalServiceDataMessage.newBuilder().withRemoteDelete(delete);
1078         return sendGroupMessage(messageBuilder, groupId);
1079     }
1080
1081     public Pair<Long, List<SendMessageResult>> sendMessageReaction(
1082             String emoji, boolean remove, String targetAuthor, long targetSentTimestamp, List<String> recipients
1083     ) throws IOException, InvalidNumberException {
1084         var targetAuthorRecipientId = canonicalizeAndResolveRecipient(targetAuthor);
1085         var reaction = new SignalServiceDataMessage.Reaction(emoji,
1086                 remove,
1087                 resolveSignalServiceAddress(targetAuthorRecipientId),
1088                 targetSentTimestamp);
1089         final var messageBuilder = SignalServiceDataMessage.newBuilder().withReaction(reaction);
1090         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
1091     }
1092
1093     public Pair<Long, List<SendMessageResult>> sendEndSessionMessage(List<String> recipients) throws IOException, InvalidNumberException {
1094         var messageBuilder = SignalServiceDataMessage.newBuilder().asEndSessionMessage();
1095
1096         final var signalServiceAddresses = getSignalServiceAddresses(recipients);
1097         try {
1098             return sendMessage(messageBuilder, signalServiceAddresses);
1099         } catch (Exception e) {
1100             for (var address : signalServiceAddresses) {
1101                 handleEndSession(address);
1102             }
1103             throw e;
1104         }
1105     }
1106
1107     SendMessageResult renewSession(RecipientId recipientId) throws IOException {
1108         account.getSessionStore().archiveSessions(recipientId);
1109         return sendNullMessage(recipientId);
1110     }
1111
1112     public String getContactName(String number) throws InvalidNumberException {
1113         var contact = account.getContactStore().getContact(canonicalizeAndResolveRecipient(number));
1114         return contact == null || contact.getName() == null ? "" : contact.getName();
1115     }
1116
1117     public void setContactName(String number, String name) throws InvalidNumberException, NotMasterDeviceException {
1118         if (!account.isMasterDevice()) {
1119             throw new NotMasterDeviceException();
1120         }
1121         final var recipientId = canonicalizeAndResolveRecipient(number);
1122         var contact = account.getContactStore().getContact(recipientId);
1123         final var builder = contact == null ? Contact.newBuilder() : Contact.newBuilder(contact);
1124         account.getContactStore().storeContact(recipientId, builder.withName(name).build());
1125     }
1126
1127     public void setContactBlocked(
1128             String number, boolean blocked
1129     ) throws InvalidNumberException, NotMasterDeviceException {
1130         if (!account.isMasterDevice()) {
1131             throw new NotMasterDeviceException();
1132         }
1133         setContactBlocked(canonicalizeAndResolveRecipient(number), blocked);
1134     }
1135
1136     private void setContactBlocked(RecipientId recipientId, boolean blocked) {
1137         var contact = account.getContactStore().getContact(recipientId);
1138         final var builder = contact == null ? Contact.newBuilder() : Contact.newBuilder(contact);
1139         account.getContactStore().storeContact(recipientId, builder.withBlocked(blocked).build());
1140     }
1141
1142     public void setGroupBlocked(final GroupId groupId, final boolean blocked) throws GroupNotFoundException {
1143         var group = getGroup(groupId);
1144         if (group == null) {
1145             throw new GroupNotFoundException(groupId);
1146         }
1147
1148         group.setBlocked(blocked);
1149         account.getGroupStore().updateGroup(group);
1150     }
1151
1152     private void setExpirationTimer(RecipientId recipientId, int messageExpirationTimer) {
1153         var contact = account.getContactStore().getContact(recipientId);
1154         if (contact != null && contact.getMessageExpirationTime() == messageExpirationTimer) {
1155             return;
1156         }
1157         final var builder = contact == null ? Contact.newBuilder() : Contact.newBuilder(contact);
1158         account.getContactStore()
1159                 .storeContact(recipientId, builder.withMessageExpirationTime(messageExpirationTimer).build());
1160     }
1161
1162     private void sendExpirationTimerUpdate(RecipientId recipientId) throws IOException {
1163         final var messageBuilder = SignalServiceDataMessage.newBuilder().asExpirationUpdate();
1164         sendMessage(messageBuilder, Set.of(recipientId));
1165     }
1166
1167     /**
1168      * Change the expiration timer for a contact
1169      */
1170     public void setExpirationTimer(
1171             String number, int messageExpirationTimer
1172     ) throws IOException, InvalidNumberException {
1173         var recipientId = canonicalizeAndResolveRecipient(number);
1174         setExpirationTimer(recipientId, messageExpirationTimer);
1175         sendExpirationTimerUpdate(recipientId);
1176     }
1177
1178     /**
1179      * Change the expiration timer for a group
1180      */
1181     public void setExpirationTimer(GroupId groupId, int messageExpirationTimer) {
1182         var g = getGroup(groupId);
1183         if (g instanceof GroupInfoV1) {
1184             var groupInfoV1 = (GroupInfoV1) g;
1185             groupInfoV1.messageExpirationTime = messageExpirationTimer;
1186             account.getGroupStore().updateGroup(groupInfoV1);
1187         } else {
1188             throw new RuntimeException("TODO Not implemented!");
1189         }
1190     }
1191
1192     /**
1193      * Upload the sticker pack from path.
1194      *
1195      * @param path Path can be a path to a manifest.json file or to a zip file that contains a manifest.json file
1196      * @return if successful, returns the URL to install the sticker pack in the signal app
1197      */
1198     public String uploadStickerPack(File path) throws IOException, StickerPackInvalidException {
1199         var manifest = StickerUtils.getSignalServiceStickerManifestUpload(path);
1200
1201         var messageSender = createMessageSender();
1202
1203         var packKey = KeyUtils.createStickerUploadKey();
1204         var packId = messageSender.uploadStickerManifest(manifest, packKey);
1205
1206         var sticker = new Sticker(StickerPackId.deserialize(Hex.fromStringCondensed(packId)), packKey);
1207         account.getStickerStore().updateSticker(sticker);
1208
1209         try {
1210             return new URI("https",
1211                     "signal.art",
1212                     "/addstickers/",
1213                     "pack_id=" + URLEncoder.encode(packId, StandardCharsets.UTF_8) + "&pack_key=" + URLEncoder.encode(
1214                             Hex.toStringCondensed(packKey),
1215                             StandardCharsets.UTF_8)).toString();
1216         } catch (URISyntaxException e) {
1217             throw new AssertionError(e);
1218         }
1219     }
1220
1221     public void requestAllSyncData() throws IOException {
1222         requestSyncGroups();
1223         requestSyncContacts();
1224         requestSyncBlocked();
1225         requestSyncConfiguration();
1226         requestSyncKeys();
1227     }
1228
1229     private void requestSyncGroups() throws IOException {
1230         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1231                 .setType(SignalServiceProtos.SyncMessage.Request.Type.GROUPS)
1232                 .build();
1233         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1234         try {
1235             sendSyncMessage(message);
1236         } catch (UntrustedIdentityException e) {
1237             throw new AssertionError(e);
1238         }
1239     }
1240
1241     private void requestSyncContacts() throws IOException {
1242         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1243                 .setType(SignalServiceProtos.SyncMessage.Request.Type.CONTACTS)
1244                 .build();
1245         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1246         try {
1247             sendSyncMessage(message);
1248         } catch (UntrustedIdentityException e) {
1249             throw new AssertionError(e);
1250         }
1251     }
1252
1253     private void requestSyncBlocked() throws IOException {
1254         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1255                 .setType(SignalServiceProtos.SyncMessage.Request.Type.BLOCKED)
1256                 .build();
1257         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1258         try {
1259             sendSyncMessage(message);
1260         } catch (UntrustedIdentityException e) {
1261             throw new AssertionError(e);
1262         }
1263     }
1264
1265     private void requestSyncConfiguration() throws IOException {
1266         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1267                 .setType(SignalServiceProtos.SyncMessage.Request.Type.CONFIGURATION)
1268                 .build();
1269         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1270         try {
1271             sendSyncMessage(message);
1272         } catch (UntrustedIdentityException e) {
1273             throw new AssertionError(e);
1274         }
1275     }
1276
1277     private void requestSyncKeys() throws IOException {
1278         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1279                 .setType(SignalServiceProtos.SyncMessage.Request.Type.KEYS)
1280                 .build();
1281         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1282         try {
1283             sendSyncMessage(message);
1284         } catch (UntrustedIdentityException e) {
1285             throw new AssertionError(e);
1286         }
1287     }
1288
1289     private byte[] getSenderCertificate() {
1290         byte[] certificate;
1291         try {
1292             if (account.isPhoneNumberShared()) {
1293                 certificate = accountManager.getSenderCertificate();
1294             } else {
1295                 certificate = accountManager.getSenderCertificateForPhoneNumberPrivacy();
1296             }
1297         } catch (IOException e) {
1298             logger.warn("Failed to get sender certificate, ignoring: {}", e.getMessage());
1299             return null;
1300         }
1301         // TODO cache for a day
1302         return certificate;
1303     }
1304
1305     private void sendSyncMessage(SignalServiceSyncMessage message) throws IOException, UntrustedIdentityException {
1306         var messageSender = createMessageSender();
1307         messageSender.sendMessage(message, unidentifiedAccessHelper.getAccessForSync());
1308     }
1309
1310     private Set<RecipientId> getSignalServiceAddresses(Collection<String> numbers) throws InvalidNumberException {
1311         final var signalServiceAddresses = new HashSet<SignalServiceAddress>(numbers.size());
1312         final var addressesMissingUuid = new HashSet<SignalServiceAddress>();
1313
1314         for (var number : numbers) {
1315             final var resolvedAddress = resolveSignalServiceAddress(canonicalizeAndResolveRecipient(number));
1316             if (resolvedAddress.getUuid().isPresent()) {
1317                 signalServiceAddresses.add(resolvedAddress);
1318             } else {
1319                 addressesMissingUuid.add(resolvedAddress);
1320             }
1321         }
1322
1323         final var numbersMissingUuid = addressesMissingUuid.stream()
1324                 .map(a -> a.getNumber().get())
1325                 .collect(Collectors.toSet());
1326         Map<String, UUID> registeredUsers;
1327         try {
1328             registeredUsers = getRegisteredUsers(numbersMissingUuid);
1329         } catch (IOException e) {
1330             logger.warn("Failed to resolve uuids from server, ignoring: {}", e.getMessage());
1331             registeredUsers = Map.of();
1332         }
1333
1334         for (var address : addressesMissingUuid) {
1335             final var number = address.getNumber().get();
1336             if (registeredUsers.containsKey(number)) {
1337                 final var newAddress = resolveSignalServiceAddress(resolveRecipientTrusted(new SignalServiceAddress(
1338                         registeredUsers.get(number),
1339                         number)));
1340                 signalServiceAddresses.add(newAddress);
1341             } else {
1342                 signalServiceAddresses.add(address);
1343             }
1344         }
1345
1346         return signalServiceAddresses.stream().map(this::resolveRecipient).collect(Collectors.toSet());
1347     }
1348
1349     private RecipientId refreshRegisteredUser(RecipientId recipientId) throws IOException {
1350         final var address = resolveSignalServiceAddress(recipientId);
1351         if (!address.getNumber().isPresent()) {
1352             return recipientId;
1353         }
1354         final var number = address.getNumber().get();
1355         final var uuidMap = getRegisteredUsers(Set.of(number));
1356         return resolveRecipientTrusted(new SignalServiceAddress(uuidMap.getOrDefault(number, null), number));
1357     }
1358
1359     private Map<String, UUID> getRegisteredUsers(final Set<String> numbers) throws IOException {
1360         try {
1361             return accountManager.getRegisteredUsers(ServiceConfig.getIasKeyStore(),
1362                     numbers,
1363                     serviceEnvironmentConfig.getCdsMrenclave());
1364         } catch (Quote.InvalidQuoteFormatException | UnauthenticatedQuoteException | SignatureException | UnauthenticatedResponseException | InvalidKeyException e) {
1365             throw new IOException(e);
1366         }
1367     }
1368
1369     private Pair<Long, List<SendMessageResult>> sendMessage(
1370             SignalServiceDataMessage.Builder messageBuilder, Set<RecipientId> recipientIds
1371     ) throws IOException {
1372         final var timestamp = System.currentTimeMillis();
1373         messageBuilder.withTimestamp(timestamp);
1374         getOrCreateMessagePipe();
1375         getOrCreateUnidentifiedMessagePipe();
1376         SignalServiceDataMessage message = null;
1377         try {
1378             message = messageBuilder.build();
1379             if (message.getGroupContext().isPresent()) {
1380                 try {
1381                     var messageSender = createMessageSender();
1382                     final var isRecipientUpdate = false;
1383                     final var recipientIdList = new ArrayList<>(recipientIds);
1384                     final var addresses = recipientIdList.stream()
1385                             .map(this::resolveSignalServiceAddress)
1386                             .collect(Collectors.toList());
1387                     var result = messageSender.sendMessage(addresses,
1388                             unidentifiedAccessHelper.getAccessFor(recipientIdList),
1389                             isRecipientUpdate,
1390                             message);
1391
1392                     for (var r : result) {
1393                         if (r.getIdentityFailure() != null) {
1394                             final var recipientId = resolveRecipient(r.getAddress());
1395                             final var newIdentity = account.getIdentityKeyStore()
1396                                     .saveIdentity(recipientId, r.getIdentityFailure().getIdentityKey(), new Date());
1397                             if (newIdentity) {
1398                                 account.getSessionStore().archiveSessions(recipientId);
1399                             }
1400                         }
1401                     }
1402
1403                     return new Pair<>(timestamp, result);
1404                 } catch (UntrustedIdentityException e) {
1405                     return new Pair<>(timestamp, List.of());
1406                 }
1407             } else {
1408                 // Send to all individually, so sync messages are sent correctly
1409                 messageBuilder.withProfileKey(account.getProfileKey().serialize());
1410                 var results = new ArrayList<SendMessageResult>(recipientIds.size());
1411                 for (var recipientId : recipientIds) {
1412                     final var contact = account.getContactStore().getContact(recipientId);
1413                     final var expirationTime = contact != null ? contact.getMessageExpirationTime() : 0;
1414                     messageBuilder.withExpiration(expirationTime);
1415                     message = messageBuilder.build();
1416                     results.add(sendMessage(recipientId, message));
1417                 }
1418                 return new Pair<>(timestamp, results);
1419             }
1420         } finally {
1421             if (message != null && message.isEndSession()) {
1422                 for (var recipient : recipientIds) {
1423                     handleEndSession(recipient);
1424                 }
1425             }
1426         }
1427     }
1428
1429     private Pair<Long, SendMessageResult> sendSelfMessage(
1430             SignalServiceDataMessage.Builder messageBuilder
1431     ) throws IOException {
1432         final var timestamp = System.currentTimeMillis();
1433         messageBuilder.withTimestamp(timestamp);
1434         getOrCreateMessagePipe();
1435         getOrCreateUnidentifiedMessagePipe();
1436         final var recipientId = account.getSelfRecipientId();
1437
1438         final var contact = account.getContactStore().getContact(recipientId);
1439         final var expirationTime = contact != null ? contact.getMessageExpirationTime() : 0;
1440         messageBuilder.withExpiration(expirationTime);
1441
1442         var message = messageBuilder.build();
1443         final var result = sendSelfMessage(message);
1444         return new Pair<>(timestamp, result);
1445     }
1446
1447     private SendMessageResult sendSelfMessage(SignalServiceDataMessage message) throws IOException {
1448         var messageSender = createMessageSender();
1449
1450         var recipientId = account.getSelfRecipientId();
1451
1452         final var unidentifiedAccess = unidentifiedAccessHelper.getAccessFor(recipientId);
1453         var recipient = resolveSignalServiceAddress(recipientId);
1454         var transcript = new SentTranscriptMessage(Optional.of(recipient),
1455                 message.getTimestamp(),
1456                 message,
1457                 message.getExpiresInSeconds(),
1458                 Map.of(recipient, unidentifiedAccess.isPresent()),
1459                 false);
1460         var syncMessage = SignalServiceSyncMessage.forSentTranscript(transcript);
1461
1462         try {
1463             var startTime = System.currentTimeMillis();
1464             messageSender.sendMessage(syncMessage, unidentifiedAccess);
1465             return SendMessageResult.success(recipient,
1466                     unidentifiedAccess.isPresent(),
1467                     false,
1468                     System.currentTimeMillis() - startTime);
1469         } catch (UntrustedIdentityException e) {
1470             return SendMessageResult.identityFailure(recipient, e.getIdentityKey());
1471         }
1472     }
1473
1474     private SendMessageResult sendMessage(
1475             RecipientId recipientId, SignalServiceDataMessage message
1476     ) throws IOException {
1477         var messageSender = createMessageSender();
1478
1479         final var address = resolveSignalServiceAddress(recipientId);
1480         try {
1481             try {
1482                 return messageSender.sendMessage(address, unidentifiedAccessHelper.getAccessFor(recipientId), message);
1483             } catch (UnregisteredUserException e) {
1484                 final var newRecipientId = refreshRegisteredUser(recipientId);
1485                 return messageSender.sendMessage(resolveSignalServiceAddress(newRecipientId),
1486                         unidentifiedAccessHelper.getAccessFor(newRecipientId),
1487                         message);
1488             }
1489         } catch (UntrustedIdentityException e) {
1490             return SendMessageResult.identityFailure(address, e.getIdentityKey());
1491         }
1492     }
1493
1494     private SendMessageResult sendNullMessage(RecipientId recipientId) throws IOException {
1495         var messageSender = createMessageSender();
1496
1497         final var address = resolveSignalServiceAddress(recipientId);
1498         try {
1499             try {
1500                 return messageSender.sendNullMessage(address, unidentifiedAccessHelper.getAccessFor(recipientId));
1501             } catch (UnregisteredUserException e) {
1502                 final var newRecipientId = refreshRegisteredUser(recipientId);
1503                 final var newAddress = resolveSignalServiceAddress(newRecipientId);
1504                 return messageSender.sendNullMessage(newAddress, unidentifiedAccessHelper.getAccessFor(newRecipientId));
1505             }
1506         } catch (UntrustedIdentityException e) {
1507             return SendMessageResult.identityFailure(address, e.getIdentityKey());
1508         }
1509     }
1510
1511     private SignalServiceContent decryptMessage(SignalServiceEnvelope envelope) throws InvalidMetadataMessageException, ProtocolInvalidMessageException, ProtocolDuplicateMessageException, ProtocolLegacyMessageException, ProtocolInvalidKeyIdException, InvalidMetadataVersionException, ProtocolInvalidVersionException, ProtocolNoSessionException, ProtocolInvalidKeyException, SelfSendException, UnsupportedDataMessageException, org.whispersystems.libsignal.UntrustedIdentityException {
1512         var cipher = new SignalServiceCipher(account.getSelfAddress(),
1513                 account.getSignalProtocolStore(),
1514                 certificateValidator);
1515         try {
1516             return cipher.decrypt(envelope);
1517         } catch (ProtocolUntrustedIdentityException e) {
1518             if (e.getCause() instanceof org.whispersystems.libsignal.UntrustedIdentityException) {
1519                 throw (org.whispersystems.libsignal.UntrustedIdentityException) e.getCause();
1520             }
1521             throw new AssertionError(e);
1522         }
1523     }
1524
1525     private void handleEndSession(RecipientId recipientId) {
1526         account.getSessionStore().deleteAllSessions(recipientId);
1527     }
1528
1529     private List<HandleAction> handleSignalServiceDataMessage(
1530             SignalServiceDataMessage message,
1531             boolean isSync,
1532             SignalServiceAddress source,
1533             SignalServiceAddress destination,
1534             boolean ignoreAttachments
1535     ) {
1536         var actions = new ArrayList<HandleAction>();
1537         if (message.getGroupContext().isPresent()) {
1538             if (message.getGroupContext().get().getGroupV1().isPresent()) {
1539                 var groupInfo = message.getGroupContext().get().getGroupV1().get();
1540                 var groupId = GroupId.v1(groupInfo.getGroupId());
1541                 var group = getGroup(groupId);
1542                 if (group == null || group instanceof GroupInfoV1) {
1543                     var groupV1 = (GroupInfoV1) group;
1544                     switch (groupInfo.getType()) {
1545                         case UPDATE: {
1546                             if (groupV1 == null) {
1547                                 groupV1 = new GroupInfoV1(groupId);
1548                             }
1549
1550                             if (groupInfo.getAvatar().isPresent()) {
1551                                 var avatar = groupInfo.getAvatar().get();
1552                                 downloadGroupAvatar(avatar, groupV1.getGroupId());
1553                             }
1554
1555                             if (groupInfo.getName().isPresent()) {
1556                                 groupV1.name = groupInfo.getName().get();
1557                             }
1558
1559                             if (groupInfo.getMembers().isPresent()) {
1560                                 groupV1.addMembers(groupInfo.getMembers()
1561                                         .get()
1562                                         .stream()
1563                                         .map(this::resolveRecipient)
1564                                         .collect(Collectors.toSet()));
1565                             }
1566
1567                             account.getGroupStore().updateGroup(groupV1);
1568                             break;
1569                         }
1570                         case DELIVER:
1571                             if (groupV1 == null && !isSync) {
1572                                 actions.add(new SendGroupInfoRequestAction(source, groupId));
1573                             }
1574                             break;
1575                         case QUIT: {
1576                             if (groupV1 != null) {
1577                                 groupV1.removeMember(resolveRecipient(source));
1578                                 account.getGroupStore().updateGroup(groupV1);
1579                             }
1580                             break;
1581                         }
1582                         case REQUEST_INFO:
1583                             if (groupV1 != null && !isSync) {
1584                                 actions.add(new SendGroupInfoAction(source, groupV1.getGroupId()));
1585                             }
1586                             break;
1587                     }
1588                 } else {
1589                     // Received a group v1 message for a v2 group
1590                 }
1591             }
1592             if (message.getGroupContext().get().getGroupV2().isPresent()) {
1593                 final var groupContext = message.getGroupContext().get().getGroupV2().get();
1594                 final var groupMasterKey = groupContext.getMasterKey();
1595
1596                 getOrMigrateGroup(groupMasterKey,
1597                         groupContext.getRevision(),
1598                         groupContext.hasSignedGroupChange() ? groupContext.getSignedGroupChange() : null);
1599             }
1600         }
1601
1602         final var conversationPartnerAddress = isSync ? destination : source;
1603         if (conversationPartnerAddress != null && message.isEndSession()) {
1604             handleEndSession(resolveRecipient(conversationPartnerAddress));
1605         }
1606         if (message.isExpirationUpdate() || message.getBody().isPresent()) {
1607             if (message.getGroupContext().isPresent()) {
1608                 if (message.getGroupContext().get().getGroupV1().isPresent()) {
1609                     var groupInfo = message.getGroupContext().get().getGroupV1().get();
1610                     var group = account.getGroupStore().getOrCreateGroupV1(GroupId.v1(groupInfo.getGroupId()));
1611                     if (group != null) {
1612                         if (group.messageExpirationTime != message.getExpiresInSeconds()) {
1613                             group.messageExpirationTime = message.getExpiresInSeconds();
1614                             account.getGroupStore().updateGroup(group);
1615                         }
1616                     }
1617                 } else if (message.getGroupContext().get().getGroupV2().isPresent()) {
1618                     // disappearing message timer already stored in the DecryptedGroup
1619                 }
1620             } else if (conversationPartnerAddress != null) {
1621                 setExpirationTimer(resolveRecipient(conversationPartnerAddress), message.getExpiresInSeconds());
1622             }
1623         }
1624         if (!ignoreAttachments) {
1625             if (message.getAttachments().isPresent()) {
1626                 for (var attachment : message.getAttachments().get()) {
1627                     downloadAttachment(attachment);
1628                 }
1629             }
1630             if (message.getSharedContacts().isPresent()) {
1631                 for (var contact : message.getSharedContacts().get()) {
1632                     if (contact.getAvatar().isPresent()) {
1633                         downloadAttachment(contact.getAvatar().get().getAttachment());
1634                     }
1635                 }
1636             }
1637         }
1638         if (message.getProfileKey().isPresent() && message.getProfileKey().get().length == 32) {
1639             final ProfileKey profileKey;
1640             try {
1641                 profileKey = new ProfileKey(message.getProfileKey().get());
1642             } catch (InvalidInputException e) {
1643                 throw new AssertionError(e);
1644             }
1645             if (source.matches(account.getSelfAddress())) {
1646                 this.account.setProfileKey(profileKey);
1647             }
1648             this.account.getProfileStore().storeProfileKey(resolveRecipient(source), profileKey);
1649         }
1650         if (message.getPreviews().isPresent()) {
1651             final var previews = message.getPreviews().get();
1652             for (var preview : previews) {
1653                 if (preview.getImage().isPresent()) {
1654                     downloadAttachment(preview.getImage().get());
1655                 }
1656             }
1657         }
1658         if (message.getQuote().isPresent()) {
1659             final var quote = message.getQuote().get();
1660
1661             for (var quotedAttachment : quote.getAttachments()) {
1662                 final var thumbnail = quotedAttachment.getThumbnail();
1663                 if (thumbnail != null) {
1664                     downloadAttachment(thumbnail);
1665                 }
1666             }
1667         }
1668         if (message.getSticker().isPresent()) {
1669             final var messageSticker = message.getSticker().get();
1670             final var stickerPackId = StickerPackId.deserialize(messageSticker.getPackId());
1671             var sticker = account.getStickerStore().getSticker(stickerPackId);
1672             if (sticker == null) {
1673                 sticker = new Sticker(stickerPackId, messageSticker.getPackKey());
1674                 account.getStickerStore().updateSticker(sticker);
1675             }
1676         }
1677         return actions;
1678     }
1679
1680     private GroupInfoV2 getOrMigrateGroup(
1681             final GroupMasterKey groupMasterKey, final int revision, final byte[] signedGroupChange
1682     ) {
1683         final var groupSecretParams = GroupSecretParams.deriveFromMasterKey(groupMasterKey);
1684
1685         var groupId = GroupUtils.getGroupIdV2(groupSecretParams);
1686         var groupInfo = getGroup(groupId);
1687         final GroupInfoV2 groupInfoV2;
1688         if (groupInfo instanceof GroupInfoV1) {
1689             // Received a v2 group message for a v1 group, we need to locally migrate the group
1690             account.getGroupStore().deleteGroupV1(((GroupInfoV1) groupInfo).getGroupId());
1691             groupInfoV2 = new GroupInfoV2(groupId, groupMasterKey);
1692             logger.info("Locally migrated group {} to group v2, id: {}",
1693                     groupInfo.getGroupId().toBase64(),
1694                     groupInfoV2.getGroupId().toBase64());
1695         } else if (groupInfo instanceof GroupInfoV2) {
1696             groupInfoV2 = (GroupInfoV2) groupInfo;
1697         } else {
1698             groupInfoV2 = new GroupInfoV2(groupId, groupMasterKey);
1699         }
1700
1701         if (groupInfoV2.getGroup() == null || groupInfoV2.getGroup().getRevision() < revision) {
1702             DecryptedGroup group = null;
1703             if (signedGroupChange != null
1704                     && groupInfoV2.getGroup() != null
1705                     && groupInfoV2.getGroup().getRevision() + 1 == revision) {
1706                 group = groupHelper.getUpdatedDecryptedGroup(groupInfoV2.getGroup(), signedGroupChange, groupMasterKey);
1707             }
1708             if (group == null) {
1709                 group = groupHelper.getDecryptedGroup(groupSecretParams);
1710             }
1711             if (group != null) {
1712                 storeProfileKeysFromMembers(group);
1713                 final var avatar = group.getAvatar();
1714                 if (avatar != null && !avatar.isEmpty()) {
1715                     downloadGroupAvatar(groupId, groupSecretParams, avatar);
1716                 }
1717             }
1718             groupInfoV2.setGroup(group, this::resolveRecipient);
1719             account.getGroupStore().updateGroup(groupInfoV2);
1720         }
1721
1722         return groupInfoV2;
1723     }
1724
1725     private void storeProfileKeysFromMembers(final DecryptedGroup group) {
1726         for (var member : group.getMembersList()) {
1727             final var uuid = UuidUtil.parseOrThrow(member.getUuid().toByteArray());
1728             final var recipientId = account.getRecipientStore().resolveRecipient(uuid);
1729             try {
1730                 account.getProfileStore()
1731                         .storeProfileKey(recipientId, new ProfileKey(member.getProfileKey().toByteArray()));
1732             } catch (InvalidInputException ignored) {
1733             }
1734         }
1735     }
1736
1737     private void retryFailedReceivedMessages(ReceiveMessageHandler handler, boolean ignoreAttachments) {
1738         Set<HandleAction> queuedActions = new HashSet<>();
1739         for (var cachedMessage : account.getMessageCache().getCachedMessages()) {
1740             var actions = retryFailedReceivedMessage(handler, ignoreAttachments, cachedMessage);
1741             if (actions != null) {
1742                 queuedActions.addAll(actions);
1743             }
1744         }
1745         for (var action : queuedActions) {
1746             try {
1747                 action.execute(this);
1748             } catch (Throwable e) {
1749                 logger.warn("Message action failed.", e);
1750             }
1751         }
1752     }
1753
1754     private List<HandleAction> retryFailedReceivedMessage(
1755             final ReceiveMessageHandler handler, final boolean ignoreAttachments, final CachedMessage cachedMessage
1756     ) {
1757         var envelope = cachedMessage.loadEnvelope();
1758         if (envelope == null) {
1759             return null;
1760         }
1761         SignalServiceContent content = null;
1762         List<HandleAction> actions = null;
1763         if (!envelope.isReceipt()) {
1764             try {
1765                 content = decryptMessage(envelope);
1766             } catch (org.whispersystems.libsignal.UntrustedIdentityException e) {
1767                 if (!envelope.hasSource()) {
1768                     final var identifier = ((org.whispersystems.libsignal.UntrustedIdentityException) e).getName();
1769                     final var recipientId = resolveRecipient(identifier);
1770                     try {
1771                         account.getMessageCache().replaceSender(cachedMessage, recipientId);
1772                     } catch (IOException ioException) {
1773                         logger.warn("Failed to move cached message to recipient folder: {}", ioException.getMessage());
1774                     }
1775                 }
1776                 return null;
1777             } catch (Exception er) {
1778                 // All other errors are not recoverable, so delete the cached message
1779                 cachedMessage.delete();
1780                 return null;
1781             }
1782             actions = handleMessage(envelope, content, ignoreAttachments);
1783         }
1784         handler.handleMessage(envelope, content, null);
1785         cachedMessage.delete();
1786         return actions;
1787     }
1788
1789     public void receiveMessages(
1790             long timeout,
1791             TimeUnit unit,
1792             boolean returnOnTimeout,
1793             boolean ignoreAttachments,
1794             ReceiveMessageHandler handler
1795     ) throws IOException {
1796         retryFailedReceivedMessages(handler, ignoreAttachments);
1797
1798         Set<HandleAction> queuedActions = null;
1799
1800         final var messagePipe = getOrCreateMessagePipe();
1801
1802         var hasCaughtUpWithOldMessages = false;
1803
1804         while (true) {
1805             SignalServiceEnvelope envelope;
1806             SignalServiceContent content = null;
1807             Exception exception = null;
1808             final CachedMessage[] cachedMessage = {null};
1809             try {
1810                 var result = messagePipe.readOrEmpty(timeout, unit, envelope1 -> {
1811                     final var recipientId = envelope1.hasSource()
1812                             ? resolveRecipient(envelope1.getSourceIdentifier())
1813                             : null;
1814                     // store message on disk, before acknowledging receipt to the server
1815                     cachedMessage[0] = account.getMessageCache().cacheMessage(envelope1, recipientId);
1816                 });
1817                 if (result.isPresent()) {
1818                     envelope = result.get();
1819                 } else {
1820                     // Received indicator that server queue is empty
1821                     hasCaughtUpWithOldMessages = true;
1822
1823                     if (queuedActions != null) {
1824                         for (var action : queuedActions) {
1825                             try {
1826                                 action.execute(this);
1827                             } catch (Throwable e) {
1828                                 logger.warn("Message action failed.", e);
1829                             }
1830                         }
1831                         queuedActions.clear();
1832                         queuedActions = null;
1833                     }
1834
1835                     // Continue to wait another timeout for new messages
1836                     continue;
1837                 }
1838             } catch (TimeoutException e) {
1839                 if (returnOnTimeout) return;
1840                 continue;
1841             }
1842
1843             if (envelope.hasSource()) {
1844                 // Store uuid if we don't have it already
1845                 // address/uuid in envelope is sent by server
1846                 resolveRecipientTrusted(envelope.getSourceAddress());
1847             }
1848             final var notAGroupMember = isNotAGroupMember(envelope, content);
1849             if (!envelope.isReceipt()) {
1850                 try {
1851                     content = decryptMessage(envelope);
1852                 } catch (Exception e) {
1853                     exception = e;
1854                 }
1855                 if (!envelope.hasSource() && content != null) {
1856                     // Store uuid if we don't have it already
1857                     // address/uuid is validated by unidentified sender certificate
1858                     resolveRecipientTrusted(content.getSender());
1859                 }
1860                 var actions = handleMessage(envelope, content, ignoreAttachments);
1861                 if (exception instanceof ProtocolInvalidMessageException) {
1862                     final var sender = resolveRecipient(((ProtocolInvalidMessageException) exception).getSender());
1863                     logger.debug("Received invalid message, queuing renew session action.");
1864                     actions.add(new RenewSessionAction(sender));
1865                 }
1866                 if (hasCaughtUpWithOldMessages) {
1867                     for (var action : actions) {
1868                         try {
1869                             action.execute(this);
1870                         } catch (Throwable e) {
1871                             logger.warn("Message action failed.", e);
1872                         }
1873                     }
1874                 } else {
1875                     if (queuedActions == null) {
1876                         queuedActions = new HashSet<>();
1877                     }
1878                     queuedActions.addAll(actions);
1879                 }
1880             }
1881             if (isMessageBlocked(envelope, content)) {
1882                 logger.info("Ignoring a message from blocked user/group: {}", envelope.getTimestamp());
1883             } else if (notAGroupMember) {
1884                 logger.info("Ignoring a message from a non group member: {}", envelope.getTimestamp());
1885             } else {
1886                 handler.handleMessage(envelope, content, exception);
1887             }
1888             if (cachedMessage[0] != null) {
1889                 if (exception instanceof org.whispersystems.libsignal.UntrustedIdentityException) {
1890                     final var identifier = ((org.whispersystems.libsignal.UntrustedIdentityException) exception).getName();
1891                     final var recipientId = resolveRecipient(identifier);
1892                     queuedActions.add(new RetrieveProfileAction(recipientId));
1893                     if (!envelope.hasSource()) {
1894                         try {
1895                             cachedMessage[0] = account.getMessageCache().replaceSender(cachedMessage[0], recipientId);
1896                         } catch (IOException ioException) {
1897                             logger.warn("Failed to move cached message to recipient folder: {}",
1898                                     ioException.getMessage());
1899                         }
1900                     }
1901                 } else {
1902                     cachedMessage[0].delete();
1903                 }
1904             }
1905         }
1906     }
1907
1908     private boolean isMessageBlocked(
1909             SignalServiceEnvelope envelope, SignalServiceContent content
1910     ) {
1911         SignalServiceAddress source;
1912         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1913             source = envelope.getSourceAddress();
1914         } else if (content != null) {
1915             source = content.getSender();
1916         } else {
1917             return false;
1918         }
1919         final var recipientId = resolveRecipient(source);
1920         if (isContactBlocked(recipientId)) {
1921             return true;
1922         }
1923
1924         if (content != null && content.getDataMessage().isPresent()) {
1925             var message = content.getDataMessage().get();
1926             if (message.getGroupContext().isPresent()) {
1927                 var groupId = GroupUtils.getGroupId(message.getGroupContext().get());
1928                 var group = getGroup(groupId);
1929                 if (group != null && group.isBlocked()) {
1930                     return true;
1931                 }
1932             }
1933         }
1934         return false;
1935     }
1936
1937     public boolean isContactBlocked(final String identifier) throws InvalidNumberException {
1938         final var recipientId = canonicalizeAndResolveRecipient(identifier);
1939         return isContactBlocked(recipientId);
1940     }
1941
1942     private boolean isContactBlocked(final RecipientId recipientId) {
1943         var sourceContact = account.getContactStore().getContact(recipientId);
1944         return sourceContact != null && sourceContact.isBlocked();
1945     }
1946
1947     private boolean isNotAGroupMember(
1948             SignalServiceEnvelope envelope, SignalServiceContent content
1949     ) {
1950         SignalServiceAddress source;
1951         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1952             source = envelope.getSourceAddress();
1953         } else if (content != null) {
1954             source = content.getSender();
1955         } else {
1956             return false;
1957         }
1958
1959         if (content != null && content.getDataMessage().isPresent()) {
1960             var message = content.getDataMessage().get();
1961             if (message.getGroupContext().isPresent()) {
1962                 if (message.getGroupContext().get().getGroupV1().isPresent()) {
1963                     var groupInfo = message.getGroupContext().get().getGroupV1().get();
1964                     if (groupInfo.getType() == SignalServiceGroup.Type.QUIT) {
1965                         return false;
1966                     }
1967                 }
1968                 var groupId = GroupUtils.getGroupId(message.getGroupContext().get());
1969                 var group = getGroup(groupId);
1970                 if (group != null && !group.isMember(resolveRecipient(source))) {
1971                     return true;
1972                 }
1973             }
1974         }
1975         return false;
1976     }
1977
1978     private List<HandleAction> handleMessage(
1979             SignalServiceEnvelope envelope, SignalServiceContent content, boolean ignoreAttachments
1980     ) {
1981         var actions = new ArrayList<HandleAction>();
1982         if (content != null) {
1983             final SignalServiceAddress sender;
1984             if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1985                 sender = envelope.getSourceAddress();
1986             } else {
1987                 sender = content.getSender();
1988             }
1989
1990             if (content.getDataMessage().isPresent()) {
1991                 var message = content.getDataMessage().get();
1992
1993                 if (content.isNeedsReceipt()) {
1994                     actions.add(new SendReceiptAction(sender, message.getTimestamp()));
1995                 }
1996
1997                 actions.addAll(handleSignalServiceDataMessage(message,
1998                         false,
1999                         sender,
2000                         account.getSelfAddress(),
2001                         ignoreAttachments));
2002             }
2003             if (content.getSyncMessage().isPresent()) {
2004                 account.setMultiDevice(true);
2005                 var syncMessage = content.getSyncMessage().get();
2006                 if (syncMessage.getSent().isPresent()) {
2007                     var message = syncMessage.getSent().get();
2008                     final var destination = message.getDestination().orNull();
2009                     actions.addAll(handleSignalServiceDataMessage(message.getMessage(),
2010                             true,
2011                             sender,
2012                             destination,
2013                             ignoreAttachments));
2014                 }
2015                 if (syncMessage.getRequest().isPresent() && account.isMasterDevice()) {
2016                     var rm = syncMessage.getRequest().get();
2017                     if (rm.isContactsRequest()) {
2018                         actions.add(SendSyncContactsAction.create());
2019                     }
2020                     if (rm.isGroupsRequest()) {
2021                         actions.add(SendSyncGroupsAction.create());
2022                     }
2023                     if (rm.isBlockedListRequest()) {
2024                         actions.add(SendSyncBlockedListAction.create());
2025                     }
2026                     // TODO Handle rm.isConfigurationRequest(); rm.isKeysRequest();
2027                 }
2028                 if (syncMessage.getGroups().isPresent()) {
2029                     File tmpFile = null;
2030                     try {
2031                         tmpFile = IOUtils.createTempFile();
2032                         final var groupsMessage = syncMessage.getGroups().get();
2033                         try (var attachmentAsStream = retrieveAttachmentAsStream(groupsMessage.asPointer(), tmpFile)) {
2034                             var s = new DeviceGroupsInputStream(attachmentAsStream);
2035                             DeviceGroup g;
2036                             while ((g = s.read()) != null) {
2037                                 var syncGroup = account.getGroupStore().getOrCreateGroupV1(GroupId.v1(g.getId()));
2038                                 if (syncGroup != null) {
2039                                     if (g.getName().isPresent()) {
2040                                         syncGroup.name = g.getName().get();
2041                                     }
2042                                     syncGroup.addMembers(g.getMembers()
2043                                             .stream()
2044                                             .map(this::resolveRecipient)
2045                                             .collect(Collectors.toSet()));
2046                                     if (!g.isActive()) {
2047                                         syncGroup.removeMember(account.getSelfRecipientId());
2048                                     } else {
2049                                         // Add ourself to the member set as it's marked as active
2050                                         syncGroup.addMembers(List.of(account.getSelfRecipientId()));
2051                                     }
2052                                     syncGroup.blocked = g.isBlocked();
2053                                     if (g.getColor().isPresent()) {
2054                                         syncGroup.color = g.getColor().get();
2055                                     }
2056
2057                                     if (g.getAvatar().isPresent()) {
2058                                         downloadGroupAvatar(g.getAvatar().get(), syncGroup.getGroupId());
2059                                     }
2060                                     syncGroup.archived = g.isArchived();
2061                                     account.getGroupStore().updateGroup(syncGroup);
2062                                 }
2063                             }
2064                         }
2065                     } catch (Exception e) {
2066                         logger.warn("Failed to handle received sync groups “{}”, ignoring: {}",
2067                                 tmpFile,
2068                                 e.getMessage());
2069                     } finally {
2070                         if (tmpFile != null) {
2071                             try {
2072                                 Files.delete(tmpFile.toPath());
2073                             } catch (IOException e) {
2074                                 logger.warn("Failed to delete received groups temp file “{}”, ignoring: {}",
2075                                         tmpFile,
2076                                         e.getMessage());
2077                             }
2078                         }
2079                     }
2080                 }
2081                 if (syncMessage.getBlockedList().isPresent()) {
2082                     final var blockedListMessage = syncMessage.getBlockedList().get();
2083                     for (var address : blockedListMessage.getAddresses()) {
2084                         setContactBlocked(resolveRecipient(address), true);
2085                     }
2086                     for (var groupId : blockedListMessage.getGroupIds()
2087                             .stream()
2088                             .map(GroupId::unknownVersion)
2089                             .collect(Collectors.toSet())) {
2090                         try {
2091                             setGroupBlocked(groupId, true);
2092                         } catch (GroupNotFoundException e) {
2093                             logger.warn("BlockedListMessage contained groupID that was not found in GroupStore: {}",
2094                                     groupId.toBase64());
2095                         }
2096                     }
2097                 }
2098                 if (syncMessage.getContacts().isPresent()) {
2099                     File tmpFile = null;
2100                     try {
2101                         tmpFile = IOUtils.createTempFile();
2102                         final var contactsMessage = syncMessage.getContacts().get();
2103                         try (var attachmentAsStream = retrieveAttachmentAsStream(contactsMessage.getContactsStream()
2104                                 .asPointer(), tmpFile)) {
2105                             var s = new DeviceContactsInputStream(attachmentAsStream);
2106                             DeviceContact c;
2107                             while ((c = s.read()) != null) {
2108                                 if (c.getAddress().matches(account.getSelfAddress()) && c.getProfileKey().isPresent()) {
2109                                     account.setProfileKey(c.getProfileKey().get());
2110                                 }
2111                                 final var recipientId = resolveRecipientTrusted(c.getAddress());
2112                                 var contact = account.getContactStore().getContact(recipientId);
2113                                 final var builder = contact == null
2114                                         ? Contact.newBuilder()
2115                                         : Contact.newBuilder(contact);
2116                                 if (c.getName().isPresent()) {
2117                                     builder.withName(c.getName().get());
2118                                 }
2119                                 if (c.getColor().isPresent()) {
2120                                     builder.withColor(c.getColor().get());
2121                                 }
2122                                 if (c.getProfileKey().isPresent()) {
2123                                     account.getProfileStore().storeProfileKey(recipientId, c.getProfileKey().get());
2124                                 }
2125                                 if (c.getVerified().isPresent()) {
2126                                     final var verifiedMessage = c.getVerified().get();
2127                                     account.getIdentityKeyStore()
2128                                             .setIdentityTrustLevel(resolveRecipientTrusted(verifiedMessage.getDestination()),
2129                                                     verifiedMessage.getIdentityKey(),
2130                                                     TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
2131                                 }
2132                                 if (c.getExpirationTimer().isPresent()) {
2133                                     builder.withMessageExpirationTime(c.getExpirationTimer().get());
2134                                 }
2135                                 builder.withBlocked(c.isBlocked());
2136                                 builder.withArchived(c.isArchived());
2137                                 account.getContactStore().storeContact(recipientId, builder.build());
2138
2139                                 if (c.getAvatar().isPresent()) {
2140                                     downloadContactAvatar(c.getAvatar().get(), c.getAddress());
2141                                 }
2142                             }
2143                         }
2144                     } catch (Exception e) {
2145                         logger.warn("Failed to handle received sync contacts “{}”, ignoring: {}",
2146                                 tmpFile,
2147                                 e.getMessage());
2148                     } finally {
2149                         if (tmpFile != null) {
2150                             try {
2151                                 Files.delete(tmpFile.toPath());
2152                             } catch (IOException e) {
2153                                 logger.warn("Failed to delete received contacts temp file “{}”, ignoring: {}",
2154                                         tmpFile,
2155                                         e.getMessage());
2156                             }
2157                         }
2158                     }
2159                 }
2160                 if (syncMessage.getVerified().isPresent()) {
2161                     final var verifiedMessage = syncMessage.getVerified().get();
2162                     account.getIdentityKeyStore()
2163                             .setIdentityTrustLevel(resolveRecipientTrusted(verifiedMessage.getDestination()),
2164                                     verifiedMessage.getIdentityKey(),
2165                                     TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
2166                 }
2167                 if (syncMessage.getStickerPackOperations().isPresent()) {
2168                     final var stickerPackOperationMessages = syncMessage.getStickerPackOperations().get();
2169                     for (var m : stickerPackOperationMessages) {
2170                         if (!m.getPackId().isPresent()) {
2171                             continue;
2172                         }
2173                         final var stickerPackId = StickerPackId.deserialize(m.getPackId().get());
2174                         var sticker = account.getStickerStore().getSticker(stickerPackId);
2175                         if (sticker == null) {
2176                             if (!m.getPackKey().isPresent()) {
2177                                 continue;
2178                             }
2179                             sticker = new Sticker(stickerPackId, m.getPackKey().get());
2180                         }
2181                         sticker.setInstalled(!m.getType().isPresent()
2182                                 || m.getType().get() == StickerPackOperationMessage.Type.INSTALL);
2183                         account.getStickerStore().updateSticker(sticker);
2184                     }
2185                 }
2186                 if (syncMessage.getFetchType().isPresent()) {
2187                     switch (syncMessage.getFetchType().get()) {
2188                         case LOCAL_PROFILE:
2189                             getRecipientProfile(account.getSelfRecipientId(), true);
2190                         case STORAGE_MANIFEST:
2191                             // TODO
2192                     }
2193                 }
2194                 if (syncMessage.getKeys().isPresent()) {
2195                     final var keysMessage = syncMessage.getKeys().get();
2196                     if (keysMessage.getStorageService().isPresent()) {
2197                         final var storageKey = keysMessage.getStorageService().get();
2198                         account.setStorageKey(storageKey);
2199                     }
2200                 }
2201                 if (syncMessage.getConfiguration().isPresent()) {
2202                     // TODO
2203                 }
2204             }
2205         }
2206         return actions;
2207     }
2208
2209     private void downloadContactAvatar(SignalServiceAttachment avatar, SignalServiceAddress address) {
2210         try {
2211             avatarStore.storeContactAvatar(address, outputStream -> retrieveAttachment(avatar, outputStream));
2212         } catch (IOException e) {
2213             logger.warn("Failed to download avatar for contact {}, ignoring: {}", address, e.getMessage());
2214         }
2215     }
2216
2217     private void downloadGroupAvatar(SignalServiceAttachment avatar, GroupId groupId) {
2218         try {
2219             avatarStore.storeGroupAvatar(groupId, outputStream -> retrieveAttachment(avatar, outputStream));
2220         } catch (IOException e) {
2221             logger.warn("Failed to download avatar for group {}, ignoring: {}", groupId.toBase64(), e.getMessage());
2222         }
2223     }
2224
2225     private void downloadGroupAvatar(GroupId groupId, GroupSecretParams groupSecretParams, String cdnKey) {
2226         try {
2227             avatarStore.storeGroupAvatar(groupId,
2228                     outputStream -> retrieveGroupV2Avatar(groupSecretParams, cdnKey, outputStream));
2229         } catch (IOException e) {
2230             logger.warn("Failed to download avatar for group {}, ignoring: {}", groupId.toBase64(), e.getMessage());
2231         }
2232     }
2233
2234     private void downloadProfileAvatar(
2235             SignalServiceAddress address, String avatarPath, ProfileKey profileKey
2236     ) {
2237         try {
2238             avatarStore.storeProfileAvatar(address,
2239                     outputStream -> retrieveProfileAvatar(avatarPath, profileKey, outputStream));
2240         } catch (Throwable e) {
2241             logger.warn("Failed to download profile avatar, ignoring: {}", e.getMessage());
2242         }
2243     }
2244
2245     public File getAttachmentFile(SignalServiceAttachmentRemoteId attachmentId) {
2246         return attachmentStore.getAttachmentFile(attachmentId);
2247     }
2248
2249     private void downloadAttachment(final SignalServiceAttachment attachment) {
2250         if (!attachment.isPointer()) {
2251             logger.warn("Invalid state, can't store an attachment stream.");
2252         }
2253
2254         var pointer = attachment.asPointer();
2255         if (pointer.getPreview().isPresent()) {
2256             final var preview = pointer.getPreview().get();
2257             try {
2258                 attachmentStore.storeAttachmentPreview(pointer.getRemoteId(),
2259                         outputStream -> outputStream.write(preview, 0, preview.length));
2260             } catch (IOException e) {
2261                 logger.warn("Failed to download attachment preview, ignoring: {}", e.getMessage());
2262             }
2263         }
2264
2265         try {
2266             attachmentStore.storeAttachment(pointer.getRemoteId(),
2267                     outputStream -> retrieveAttachmentPointer(pointer, outputStream));
2268         } catch (IOException e) {
2269             logger.warn("Failed to download attachment ({}), ignoring: {}", pointer.getRemoteId(), e.getMessage());
2270         }
2271     }
2272
2273     private void retrieveGroupV2Avatar(
2274             GroupSecretParams groupSecretParams, String cdnKey, OutputStream outputStream
2275     ) throws IOException {
2276         var groupOperations = groupsV2Operations.forGroup(groupSecretParams);
2277
2278         var tmpFile = IOUtils.createTempFile();
2279         try (InputStream input = messageReceiver.retrieveGroupsV2ProfileAvatar(cdnKey,
2280                 tmpFile,
2281                 ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
2282             var encryptedData = IOUtils.readFully(input);
2283
2284             var decryptedData = groupOperations.decryptAvatar(encryptedData);
2285             outputStream.write(decryptedData);
2286         } finally {
2287             try {
2288                 Files.delete(tmpFile.toPath());
2289             } catch (IOException e) {
2290                 logger.warn("Failed to delete received group avatar temp file “{}”, ignoring: {}",
2291                         tmpFile,
2292                         e.getMessage());
2293             }
2294         }
2295     }
2296
2297     private void retrieveProfileAvatar(
2298             String avatarPath, ProfileKey profileKey, OutputStream outputStream
2299     ) throws IOException {
2300         var tmpFile = IOUtils.createTempFile();
2301         try (var input = messageReceiver.retrieveProfileAvatar(avatarPath,
2302                 tmpFile,
2303                 profileKey,
2304                 ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
2305             // Use larger buffer size to prevent AssertionError: Need: 12272 but only have: 8192 ...
2306             IOUtils.copyStream(input, outputStream, (int) ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE);
2307         } finally {
2308             try {
2309                 Files.delete(tmpFile.toPath());
2310             } catch (IOException e) {
2311                 logger.warn("Failed to delete received profile avatar temp file “{}”, ignoring: {}",
2312                         tmpFile,
2313                         e.getMessage());
2314             }
2315         }
2316     }
2317
2318     private void retrieveAttachment(
2319             final SignalServiceAttachment attachment, final OutputStream outputStream
2320     ) throws IOException {
2321         if (attachment.isPointer()) {
2322             var pointer = attachment.asPointer();
2323             retrieveAttachmentPointer(pointer, outputStream);
2324         } else {
2325             var stream = attachment.asStream();
2326             IOUtils.copyStream(stream.getInputStream(), outputStream);
2327         }
2328     }
2329
2330     private void retrieveAttachmentPointer(
2331             SignalServiceAttachmentPointer pointer, OutputStream outputStream
2332     ) throws IOException {
2333         var tmpFile = IOUtils.createTempFile();
2334         try (var input = retrieveAttachmentAsStream(pointer, tmpFile)) {
2335             IOUtils.copyStream(input, outputStream);
2336         } catch (MissingConfigurationException | InvalidMessageException e) {
2337             throw new IOException(e);
2338         } finally {
2339             try {
2340                 Files.delete(tmpFile.toPath());
2341             } catch (IOException e) {
2342                 logger.warn("Failed to delete received attachment temp file “{}”, ignoring: {}",
2343                         tmpFile,
2344                         e.getMessage());
2345             }
2346         }
2347     }
2348
2349     private InputStream retrieveAttachmentAsStream(
2350             SignalServiceAttachmentPointer pointer, File tmpFile
2351     ) throws IOException, InvalidMessageException, MissingConfigurationException {
2352         return messageReceiver.retrieveAttachment(pointer, tmpFile, ServiceConfig.MAX_ATTACHMENT_SIZE);
2353     }
2354
2355     void sendGroups() throws IOException, UntrustedIdentityException {
2356         var groupsFile = IOUtils.createTempFile();
2357
2358         try {
2359             try (OutputStream fos = new FileOutputStream(groupsFile)) {
2360                 var out = new DeviceGroupsOutputStream(fos);
2361                 for (var record : getGroups()) {
2362                     if (record instanceof GroupInfoV1) {
2363                         var groupInfo = (GroupInfoV1) record;
2364                         out.write(new DeviceGroup(groupInfo.getGroupId().serialize(),
2365                                 Optional.fromNullable(groupInfo.name),
2366                                 groupInfo.getMembers()
2367                                         .stream()
2368                                         .map(this::resolveSignalServiceAddress)
2369                                         .collect(Collectors.toList()),
2370                                 createGroupAvatarAttachment(groupInfo.getGroupId()),
2371                                 groupInfo.isMember(account.getSelfRecipientId()),
2372                                 Optional.of(groupInfo.messageExpirationTime),
2373                                 Optional.fromNullable(groupInfo.color),
2374                                 groupInfo.blocked,
2375                                 Optional.absent(),
2376                                 groupInfo.archived));
2377                     }
2378                 }
2379             }
2380
2381             if (groupsFile.exists() && groupsFile.length() > 0) {
2382                 try (var groupsFileStream = new FileInputStream(groupsFile)) {
2383                     var attachmentStream = SignalServiceAttachment.newStreamBuilder()
2384                             .withStream(groupsFileStream)
2385                             .withContentType("application/octet-stream")
2386                             .withLength(groupsFile.length())
2387                             .build();
2388
2389                     sendSyncMessage(SignalServiceSyncMessage.forGroups(attachmentStream));
2390                 }
2391             }
2392         } finally {
2393             try {
2394                 Files.delete(groupsFile.toPath());
2395             } catch (IOException e) {
2396                 logger.warn("Failed to delete groups temp file “{}”, ignoring: {}", groupsFile, e.getMessage());
2397             }
2398         }
2399     }
2400
2401     public void sendContacts() throws IOException, UntrustedIdentityException {
2402         var contactsFile = IOUtils.createTempFile();
2403
2404         try {
2405             try (OutputStream fos = new FileOutputStream(contactsFile)) {
2406                 var out = new DeviceContactsOutputStream(fos);
2407                 for (var contactPair : account.getContactStore().getContacts()) {
2408                     final var recipientId = contactPair.first();
2409                     final var contact = contactPair.second();
2410                     final var address = resolveSignalServiceAddress(recipientId);
2411
2412                     var currentIdentity = account.getIdentityKeyStore().getIdentity(recipientId);
2413                     VerifiedMessage verifiedMessage = null;
2414                     if (currentIdentity != null) {
2415                         verifiedMessage = new VerifiedMessage(address,
2416                                 currentIdentity.getIdentityKey(),
2417                                 currentIdentity.getTrustLevel().toVerifiedState(),
2418                                 currentIdentity.getDateAdded().getTime());
2419                     }
2420
2421                     var profileKey = account.getProfileStore().getProfileKey(recipientId);
2422                     out.write(new DeviceContact(address,
2423                             Optional.fromNullable(contact.getName()),
2424                             createContactAvatarAttachment(address),
2425                             Optional.fromNullable(contact.getColor()),
2426                             Optional.fromNullable(verifiedMessage),
2427                             Optional.fromNullable(profileKey),
2428                             contact.isBlocked(),
2429                             Optional.of(contact.getMessageExpirationTime()),
2430                             Optional.absent(),
2431                             contact.isArchived()));
2432                 }
2433
2434                 if (account.getProfileKey() != null) {
2435                     // Send our own profile key as well
2436                     out.write(new DeviceContact(account.getSelfAddress(),
2437                             Optional.absent(),
2438                             Optional.absent(),
2439                             Optional.absent(),
2440                             Optional.absent(),
2441                             Optional.of(account.getProfileKey()),
2442                             false,
2443                             Optional.absent(),
2444                             Optional.absent(),
2445                             false));
2446                 }
2447             }
2448
2449             if (contactsFile.exists() && contactsFile.length() > 0) {
2450                 try (var contactsFileStream = new FileInputStream(contactsFile)) {
2451                     var attachmentStream = SignalServiceAttachment.newStreamBuilder()
2452                             .withStream(contactsFileStream)
2453                             .withContentType("application/octet-stream")
2454                             .withLength(contactsFile.length())
2455                             .build();
2456
2457                     sendSyncMessage(SignalServiceSyncMessage.forContacts(new ContactsMessage(attachmentStream, true)));
2458                 }
2459             }
2460         } finally {
2461             try {
2462                 Files.delete(contactsFile.toPath());
2463             } catch (IOException e) {
2464                 logger.warn("Failed to delete contacts temp file “{}”, ignoring: {}", contactsFile, e.getMessage());
2465             }
2466         }
2467     }
2468
2469     void sendBlockedList() throws IOException, UntrustedIdentityException {
2470         var addresses = new ArrayList<SignalServiceAddress>();
2471         for (var record : account.getContactStore().getContacts()) {
2472             if (record.second().isBlocked()) {
2473                 addresses.add(resolveSignalServiceAddress(record.first()));
2474             }
2475         }
2476         var groupIds = new ArrayList<byte[]>();
2477         for (var record : getGroups()) {
2478             if (record.isBlocked()) {
2479                 groupIds.add(record.getGroupId().serialize());
2480             }
2481         }
2482         sendSyncMessage(SignalServiceSyncMessage.forBlocked(new BlockedListMessage(addresses, groupIds)));
2483     }
2484
2485     private void sendVerifiedMessage(
2486             SignalServiceAddress destination, IdentityKey identityKey, TrustLevel trustLevel
2487     ) throws IOException, UntrustedIdentityException {
2488         var verifiedMessage = new VerifiedMessage(destination,
2489                 identityKey,
2490                 trustLevel.toVerifiedState(),
2491                 System.currentTimeMillis());
2492         sendSyncMessage(SignalServiceSyncMessage.forVerified(verifiedMessage));
2493     }
2494
2495     public List<Pair<RecipientId, Contact>> getContacts() {
2496         return account.getContactStore().getContacts();
2497     }
2498
2499     public String getContactOrProfileName(String number) throws InvalidNumberException {
2500         final var recipientId = canonicalizeAndResolveRecipient(number);
2501         final var recipient = account.getRecipientStore().getRecipient(recipientId);
2502         if (recipient == null) {
2503             return null;
2504         }
2505
2506         if (recipient.getContact() != null && !Util.isEmpty(recipient.getContact().getName())) {
2507             return recipient.getContact().getName();
2508         }
2509
2510         if (recipient.getProfile() != null && recipient.getProfile() != null) {
2511             return recipient.getProfile().getDisplayName();
2512         }
2513
2514         return null;
2515     }
2516
2517     public GroupInfo getGroup(GroupId groupId) {
2518         final var group = account.getGroupStore().getGroup(groupId);
2519         if (group instanceof GroupInfoV2 && ((GroupInfoV2) group).getGroup() == null) {
2520             final var groupSecretParams = GroupSecretParams.deriveFromMasterKey(((GroupInfoV2) group).getMasterKey());
2521             ((GroupInfoV2) group).setGroup(groupHelper.getDecryptedGroup(groupSecretParams), this::resolveRecipient);
2522             account.getGroupStore().updateGroup(group);
2523         }
2524         return group;
2525     }
2526
2527     public List<IdentityInfo> getIdentities() {
2528         return account.getIdentityKeyStore().getIdentities();
2529     }
2530
2531     public List<IdentityInfo> getIdentities(String number) throws InvalidNumberException {
2532         final var identity = account.getIdentityKeyStore().getIdentity(canonicalizeAndResolveRecipient(number));
2533         return identity == null ? List.of() : List.of(identity);
2534     }
2535
2536     /**
2537      * Trust this the identity with this fingerprint
2538      *
2539      * @param name        username of the identity
2540      * @param fingerprint Fingerprint
2541      */
2542     public boolean trustIdentityVerified(String name, byte[] fingerprint) throws InvalidNumberException {
2543         var recipientId = canonicalizeAndResolveRecipient(name);
2544         return trustIdentity(recipientId,
2545                 identityKey -> Arrays.equals(identityKey.serialize(), fingerprint),
2546                 TrustLevel.TRUSTED_VERIFIED);
2547     }
2548
2549     /**
2550      * Trust this the identity with this safety number
2551      *
2552      * @param name         username of the identity
2553      * @param safetyNumber Safety number
2554      */
2555     public boolean trustIdentityVerifiedSafetyNumber(String name, String safetyNumber) throws InvalidNumberException {
2556         var recipientId = canonicalizeAndResolveRecipient(name);
2557         var address = account.getRecipientStore().resolveServiceAddress(recipientId);
2558         return trustIdentity(recipientId,
2559                 identityKey -> safetyNumber.equals(computeSafetyNumber(address, identityKey)),
2560                 TrustLevel.TRUSTED_VERIFIED);
2561     }
2562
2563     /**
2564      * Trust all keys of this identity without verification
2565      *
2566      * @param name username of the identity
2567      */
2568     public boolean trustIdentityAllKeys(String name) throws InvalidNumberException {
2569         var recipientId = canonicalizeAndResolveRecipient(name);
2570         return trustIdentity(recipientId, identityKey -> true, TrustLevel.TRUSTED_UNVERIFIED);
2571     }
2572
2573     private boolean trustIdentity(
2574             RecipientId recipientId, Function<IdentityKey, Boolean> verifier, TrustLevel trustLevel
2575     ) {
2576         var identity = account.getIdentityKeyStore().getIdentity(recipientId);
2577         if (identity == null) {
2578             return false;
2579         }
2580
2581         if (!verifier.apply(identity.getIdentityKey())) {
2582             return false;
2583         }
2584
2585         account.getIdentityKeyStore().setIdentityTrustLevel(recipientId, identity.getIdentityKey(), trustLevel);
2586         try {
2587             var address = account.getRecipientStore().resolveServiceAddress(recipientId);
2588             sendVerifiedMessage(address, identity.getIdentityKey(), trustLevel);
2589         } catch (IOException | UntrustedIdentityException e) {
2590             logger.warn("Failed to send verification sync message: {}", e.getMessage());
2591         }
2592
2593         return true;
2594     }
2595
2596     public String computeSafetyNumber(
2597             SignalServiceAddress theirAddress, IdentityKey theirIdentityKey
2598     ) {
2599         return Utils.computeSafetyNumber(ServiceConfig.capabilities.isUuid(),
2600                 account.getSelfAddress(),
2601                 getIdentityKeyPair().getPublicKey(),
2602                 theirAddress,
2603                 theirIdentityKey);
2604     }
2605
2606     @Deprecated
2607     public SignalServiceAddress resolveSignalServiceAddress(String identifier) {
2608         var address = Utils.getSignalServiceAddressFromIdentifier(identifier);
2609
2610         return resolveSignalServiceAddress(address);
2611     }
2612
2613     @Deprecated
2614     public SignalServiceAddress resolveSignalServiceAddress(SignalServiceAddress address) {
2615         if (address.matches(account.getSelfAddress())) {
2616             return account.getSelfAddress();
2617         }
2618
2619         return account.getRecipientStore().resolveServiceAddress(address);
2620     }
2621
2622     public SignalServiceAddress resolveSignalServiceAddress(RecipientId recipientId) {
2623         return account.getRecipientStore().resolveServiceAddress(recipientId);
2624     }
2625
2626     public RecipientId canonicalizeAndResolveRecipient(String identifier) throws InvalidNumberException {
2627         var canonicalizedNumber = UuidUtil.isUuid(identifier)
2628                 ? identifier
2629                 : PhoneNumberFormatter.formatNumber(identifier, account.getUsername());
2630
2631         return resolveRecipient(canonicalizedNumber);
2632     }
2633
2634     private RecipientId resolveRecipient(final String identifier) {
2635         var address = Utils.getSignalServiceAddressFromIdentifier(identifier);
2636
2637         return resolveRecipient(address);
2638     }
2639
2640     public RecipientId resolveRecipient(SignalServiceAddress address) {
2641         return account.getRecipientStore().resolveRecipient(address);
2642     }
2643
2644     private RecipientId resolveRecipientTrusted(SignalServiceAddress address) {
2645         return account.getRecipientStore().resolveRecipientTrusted(address);
2646     }
2647
2648     @Override
2649     public void close() throws IOException {
2650         close(true);
2651     }
2652
2653     void close(boolean closeAccount) throws IOException {
2654         executor.shutdown();
2655
2656         if (messagePipe != null) {
2657             messagePipe.shutdown();
2658             messagePipe = null;
2659         }
2660
2661         if (unidentifiedMessagePipe != null) {
2662             unidentifiedMessagePipe.shutdown();
2663             unidentifiedMessagePipe = null;
2664         }
2665
2666         if (closeAccount && account != null) {
2667             account.close();
2668         }
2669         account = null;
2670     }
2671
2672     public interface ReceiveMessageHandler {
2673
2674         void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent decryptedContent, Throwable e);
2675     }
2676 }