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

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