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

   1 /*
   2   Copyright (C) 2015-2021 AsamK and contributors
   3
   4   This program is free software: you can redistribute it and/or modify
   5   it under the terms of the GNU General Public License as published by
   6   the Free Software Foundation, either version 3 of the License, or
   7   (at your option) any later version.
   8
   9   This program is distributed in the hope that it will be useful,
  10   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12   GNU General Public License for more details.
  13
  14   You should have received a copy of the GNU General Public License
  15   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17 package org.asamk.signal.manager;
  18
  19 import org.asamk.signal.manager.api.Device;
  20 import org.asamk.signal.manager.config.ServiceConfig;
  21 import org.asamk.signal.manager.config.ServiceEnvironment;
  22 import org.asamk.signal.manager.config.ServiceEnvironmentConfig;
  23 import org.asamk.signal.manager.groups.GroupId;
  24 import org.asamk.signal.manager.groups.GroupIdV1;
  25 import org.asamk.signal.manager.groups.GroupInviteLinkUrl;
  26 import org.asamk.signal.manager.groups.GroupNotFoundException;
  27 import org.asamk.signal.manager.groups.GroupUtils;
  28 import org.asamk.signal.manager.groups.NotAGroupMemberException;
  29 import org.asamk.signal.manager.helper.GroupHelper;
  30 import org.asamk.signal.manager.helper.PinHelper;
  31 import org.asamk.signal.manager.helper.ProfileHelper;
  32 import org.asamk.signal.manager.helper.UnidentifiedAccessHelper;
  33 import org.asamk.signal.manager.storage.SignalAccount;
  34 import org.asamk.signal.manager.storage.groups.GroupInfo;
  35 import org.asamk.signal.manager.storage.groups.GroupInfoV1;
  36 import org.asamk.signal.manager.storage.groups.GroupInfoV2;
  37 import org.asamk.signal.manager.storage.identities.IdentityInfo;
  38 import org.asamk.signal.manager.storage.messageCache.CachedMessage;
  39 import org.asamk.signal.manager.storage.recipients.Contact;
  40 import org.asamk.signal.manager.storage.recipients.Profile;
  41 import org.asamk.signal.manager.storage.recipients.RecipientId;
  42 import org.asamk.signal.manager.storage.stickers.Sticker;
  43 import org.asamk.signal.manager.storage.stickers.StickerPackId;
  44 import org.asamk.signal.manager.util.AttachmentUtils;
  45 import org.asamk.signal.manager.util.IOUtils;
  46 import org.asamk.signal.manager.util.KeyUtils;
  47 import org.asamk.signal.manager.util.ProfileUtils;
  48 import org.asamk.signal.manager.util.StickerUtils;
  49 import org.asamk.signal.manager.util.Utils;
  50 import org.signal.libsignal.metadata.InvalidMetadataMessageException;
  51 import org.signal.libsignal.metadata.InvalidMetadataVersionException;
  52 import org.signal.libsignal.metadata.ProtocolDuplicateMessageException;
  53 import org.signal.libsignal.metadata.ProtocolInvalidKeyException;
  54 import org.signal.libsignal.metadata.ProtocolInvalidKeyIdException;
  55 import org.signal.libsignal.metadata.ProtocolInvalidMessageException;
  56 import org.signal.libsignal.metadata.ProtocolInvalidVersionException;
  57 import org.signal.libsignal.metadata.ProtocolLegacyMessageException;
  58 import org.signal.libsignal.metadata.ProtocolNoSessionException;
  59 import org.signal.libsignal.metadata.ProtocolUntrustedIdentityException;
  60 import org.signal.libsignal.metadata.SelfSendException;
  61 import org.signal.libsignal.metadata.certificate.CertificateValidator;
  62 import org.signal.storageservice.protos.groups.GroupChange;
  63 import org.signal.storageservice.protos.groups.local.DecryptedGroup;
  64 import org.signal.zkgroup.InvalidInputException;
  65 import org.signal.zkgroup.VerificationFailedException;
  66 import org.signal.zkgroup.groups.GroupMasterKey;
  67 import org.signal.zkgroup.groups.GroupSecretParams;
  68 import org.signal.zkgroup.profiles.ClientZkProfileOperations;
  69 import org.signal.zkgroup.profiles.ProfileKey;
  70 import org.signal.zkgroup.profiles.ProfileKeyCredential;
  71 import org.slf4j.Logger;
  72 import org.slf4j.LoggerFactory;
  73 import org.whispersystems.libsignal.IdentityKey;
  74 import org.whispersystems.libsignal.IdentityKeyPair;
  75 import org.whispersystems.libsignal.InvalidKeyException;
  76 import org.whispersystems.libsignal.InvalidMessageException;
  77 import org.whispersystems.libsignal.ecc.ECPublicKey;
  78 import org.whispersystems.libsignal.state.PreKeyRecord;
  79 import org.whispersystems.libsignal.state.SignedPreKeyRecord;
  80 import org.whispersystems.libsignal.util.Pair;
  81 import org.whispersystems.libsignal.util.guava.Optional;
  82 import org.whispersystems.signalservice.api.SignalServiceAccountManager;
  83 import org.whispersystems.signalservice.api.SignalServiceMessagePipe;
  84 import org.whispersystems.signalservice.api.SignalServiceMessageReceiver;
  85 import org.whispersystems.signalservice.api.SignalServiceMessageSender;
  86 import org.whispersystems.signalservice.api.crypto.SignalServiceCipher;
  87 import org.whispersystems.signalservice.api.crypto.UntrustedIdentityException;
  88 import org.whispersystems.signalservice.api.groupsv2.ClientZkOperations;
  89 import org.whispersystems.signalservice.api.groupsv2.GroupLinkNotActiveException;
  90 import org.whispersystems.signalservice.api.groupsv2.GroupsV2Api;
  91 import org.whispersystems.signalservice.api.groupsv2.GroupsV2AuthorizationString;
  92 import org.whispersystems.signalservice.api.groupsv2.GroupsV2Operations;
  93 import org.whispersystems.signalservice.api.messages.SendMessageResult;
  94 import org.whispersystems.signalservice.api.messages.SignalServiceAttachment;
  95 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentPointer;
  96 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentRemoteId;
  97 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentStream;
  98 import org.whispersystems.signalservice.api.messages.SignalServiceContent;
  99 import org.whispersystems.signalservice.api.messages.SignalServiceDataMessage;
 100 import org.whispersystems.signalservice.api.messages.SignalServiceEnvelope;
 101 import org.whispersystems.signalservice.api.messages.SignalServiceGroup;
 102 import org.whispersystems.signalservice.api.messages.SignalServiceGroupV2;
 103 import org.whispersystems.signalservice.api.messages.SignalServiceReceiptMessage;
 104 import org.whispersystems.signalservice.api.messages.multidevice.BlockedListMessage;
 105 import org.whispersystems.signalservice.api.messages.multidevice.ContactsMessage;
 106 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContact;
 107 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsInputStream;
 108 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsOutputStream;
 109 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroup;
 110 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsInputStream;
 111 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsOutputStream;
 112 import org.whispersystems.signalservice.api.messages.multidevice.RequestMessage;
 113 import org.whispersystems.signalservice.api.messages.multidevice.SentTranscriptMessage;
 114 import org.whispersystems.signalservice.api.messages.multidevice.SignalServiceSyncMessage;
 115 import org.whispersystems.signalservice.api.messages.multidevice.StickerPackOperationMessage;
 116 import org.whispersystems.signalservice.api.messages.multidevice.VerifiedMessage;
 117 import org.whispersystems.signalservice.api.profiles.ProfileAndCredential;
 118 import org.whispersystems.signalservice.api.profiles.SignalServiceProfile;
 119 import org.whispersystems.signalservice.api.push.SignalServiceAddress;
 120 import org.whispersystems.signalservice.api.push.exceptions.MissingConfigurationException;
 121 import org.whispersystems.signalservice.api.push.exceptions.UnregisteredUserException;
 122 import org.whispersystems.signalservice.api.util.DeviceNameUtil;
 123 import org.whispersystems.signalservice.api.util.InvalidNumberException;
 124 import org.whispersystems.signalservice.api.util.PhoneNumberFormatter;
 125 import org.whispersystems.signalservice.api.util.SleepTimer;
 126 import org.whispersystems.signalservice.api.util.UptimeSleepTimer;
 127 import org.whispersystems.signalservice.api.util.UuidUtil;
 128 import org.whispersystems.signalservice.internal.contacts.crypto.Quote;
 129 import org.whispersystems.signalservice.internal.contacts.crypto.UnauthenticatedQuoteException;
 130 import org.whispersystems.signalservice.internal.contacts.crypto.UnauthenticatedResponseException;
 131 import org.whispersystems.signalservice.internal.push.SignalServiceProtos;
 132 import org.whispersystems.signalservice.internal.push.UnsupportedDataMessageException;
 133 import org.whispersystems.signalservice.internal.util.DynamicCredentialsProvider;
 134 import org.whispersystems.signalservice.internal.util.Hex;
 135 import org.whispersystems.signalservice.internal.util.Util;
 136
 137 import java.io.Closeable;
 138 import java.io.File;
 139 import java.io.FileInputStream;
 140 import java.io.FileOutputStream;
 141 import java.io.IOException;
 142 import java.io.InputStream;
 143 import java.io.OutputStream;
 144 import java.net.URI;
 145 import java.net.URISyntaxException;
 146 import java.net.URLEncoder;
 147 import java.nio.charset.StandardCharsets;
 148 import java.nio.file.Files;
 149 import java.security.SignatureException;
 150 import java.util.ArrayList;
 151 import java.util.Arrays;
 152 import java.util.Base64;
 153 import java.util.Collection;
 154 import java.util.Date;
 155 import java.util.HashSet;
 156 import java.util.List;
 157 import java.util.Map;
 158 import java.util.Set;
 159 import java.util.UUID;
 160 import java.util.concurrent.ExecutorService;
 161 import java.util.concurrent.Executors;
 162 import java.util.concurrent.TimeUnit;
 163 import java.util.concurrent.TimeoutException;
 164 import java.util.function.Function;
 165 import java.util.stream.Collectors;
 166
 167 import static org.asamk.signal.manager.config.ServiceConfig.capabilities;
 168
 169 public class Manager implements Closeable {
 170
 171     private final static Logger logger = LoggerFactory.getLogger(Manager.class);
 172
 173     private final CertificateValidator certificateValidator;
 174
 175     private final ServiceEnvironmentConfig serviceEnvironmentConfig;
 176     private final String userAgent;
 177
 178     private SignalAccount account;
 179     private final SignalServiceAccountManager accountManager;
 180     private final GroupsV2Api groupsV2Api;
 181     private final GroupsV2Operations groupsV2Operations;
 182     private final SignalServiceMessageReceiver messageReceiver;
 183     private final ClientZkProfileOperations clientZkProfileOperations;
 184
 185     private final ExecutorService executor = Executors.newCachedThreadPool();
 186
 187     private SignalServiceMessagePipe messagePipe = null;
 188     private SignalServiceMessagePipe unidentifiedMessagePipe = null;
 189
 190     private final UnidentifiedAccessHelper unidentifiedAccessHelper;
 191     private final ProfileHelper profileHelper;
 192     private final GroupHelper groupHelper;
 193     private final PinHelper pinHelper;
 194     private final AvatarStore avatarStore;
 195     private final AttachmentStore attachmentStore;
 196
 197     Manager(
 198             SignalAccount account,
 199             PathConfig pathConfig,
 200             ServiceEnvironmentConfig serviceEnvironmentConfig,
 201             String userAgent
 202     ) {
 203         this.account = account;
 204         this.serviceEnvironmentConfig = serviceEnvironmentConfig;
 205         this.certificateValidator = new CertificateValidator(serviceEnvironmentConfig.getUnidentifiedSenderTrustRoot());
 206         this.userAgent = userAgent;
 207         this.groupsV2Operations = capabilities.isGv2() ? new GroupsV2Operations(ClientZkOperations.create(
 208                 serviceEnvironmentConfig.getSignalServiceConfiguration())) : null;
 209         final SleepTimer timer = new UptimeSleepTimer();
 210         this.accountManager = new SignalServiceAccountManager(serviceEnvironmentConfig.getSignalServiceConfiguration(),
 211                 new DynamicCredentialsProvider(account.getUuid(),
 212                         account.getUsername(),
 213                         account.getPassword(),
 214                         account.getDeviceId()),
 215                 userAgent,
 216                 groupsV2Operations,
 217                 ServiceConfig.AUTOMATIC_NETWORK_RETRY,
 218                 timer);
 219         this.groupsV2Api = accountManager.getGroupsV2Api();
 220         final var keyBackupService = accountManager.getKeyBackupService(ServiceConfig.getIasKeyStore(),
 221                 serviceEnvironmentConfig.getKeyBackupConfig().getEnclaveName(),
 222                 serviceEnvironmentConfig.getKeyBackupConfig().getServiceId(),
 223                 serviceEnvironmentConfig.getKeyBackupConfig().getMrenclave(),
 224                 10);
 225
 226         this.pinHelper = new PinHelper(keyBackupService);
 227         this.clientZkProfileOperations = capabilities.isGv2()
 228                 ? ClientZkOperations.create(serviceEnvironmentConfig.getSignalServiceConfiguration())
 229                 .getProfileOperations()
 230                 : null;
 231         this.messageReceiver = new SignalServiceMessageReceiver(serviceEnvironmentConfig.getSignalServiceConfiguration(),
 232                 account.getUuid(),
 233                 account.getUsername(),
 234                 account.getPassword(),
 235                 account.getDeviceId(),
 236                 userAgent,
 237                 null,
 238                 timer,
 239                 clientZkProfileOperations,
 240                 ServiceConfig.AUTOMATIC_NETWORK_RETRY);
 241
 242         this.unidentifiedAccessHelper = new UnidentifiedAccessHelper(account::getProfileKey,
 243                 account.getProfileStore()::getProfileKey,
 244                 this::getRecipientProfile,
 245                 this::getSenderCertificate);
 246         this.profileHelper = new ProfileHelper(account.getProfileStore()::getProfileKey,
 247                 unidentifiedAccessHelper::getAccessFor,
 248                 unidentified -> unidentified ? getOrCreateUnidentifiedMessagePipe() : getOrCreateMessagePipe(),
 249                 () -> messageReceiver,
 250                 this::resolveSignalServiceAddress);
 251         this.groupHelper = new GroupHelper(this::getRecipientProfileKeyCredential,
 252                 this::getRecipientProfile,
 253                 account::getSelfRecipientId,
 254                 groupsV2Operations,
 255                 groupsV2Api,
 256                 this::getGroupAuthForToday,
 257                 this::resolveSignalServiceAddress);
 258         this.avatarStore = new AvatarStore(pathConfig.getAvatarsPath());
 259         this.attachmentStore = new AttachmentStore(pathConfig.getAttachmentsPath());
 260     }
 261
 262     public String getUsername() {
 263         return account.getUsername();
 264     }
 265
 266     public SignalServiceAddress getSelfAddress() {
 267         return account.getSelfAddress();
 268     }
 269
 270     public RecipientId getSelfRecipientId() {
 271         return account.getSelfRecipientId();
 272     }
 273
 274     private IdentityKeyPair getIdentityKeyPair() {
 275         return account.getIdentityKeyPair();
 276     }
 277
 278     public int getDeviceId() {
 279         return account.getDeviceId();
 280     }
 281
 282     public static Manager init(
 283             String username, File settingsPath, ServiceEnvironment serviceEnvironment, String userAgent
 284     ) throws IOException, NotRegisteredException {
 285         var pathConfig = PathConfig.createDefault(settingsPath);
 286
 287         if (!SignalAccount.userExists(pathConfig.getDataPath(), username)) {
 288             throw new NotRegisteredException();
 289         }
 290
 291         var account = SignalAccount.load(pathConfig.getDataPath(), username, true);
 292
 293         if (!account.isRegistered()) {
 294             throw new NotRegisteredException();
 295         }
 296
 297         final var serviceEnvironmentConfig = ServiceConfig.getServiceEnvironmentConfig(serviceEnvironment, userAgent);
 298
 299         return new Manager(account, pathConfig, serviceEnvironmentConfig, userAgent);
 300     }
 301
 302     public static List<String> getAllLocalUsernames(File settingsPath) {
 303         var pathConfig = PathConfig.createDefault(settingsPath);
 304         final var dataPath = pathConfig.getDataPath();
 305         final var files = dataPath.listFiles();
 306
 307         if (files == null) {
 308             return List.of();
 309         }
 310
 311         return Arrays.stream(files)
 312                 .filter(File::isFile)
 313                 .map(File::getName)
 314                 .filter(file -> PhoneNumberFormatter.isValidNumber(file, null))
 315                 .collect(Collectors.toList());
 316     }
 317
 318     public void checkAccountState() throws IOException {
 319         if (accountManager.getPreKeysCount() < ServiceConfig.PREKEY_MINIMUM_COUNT) {
 320             refreshPreKeys();
 321         }
 322         if (account.getUuid() == null) {
 323             account.setUuid(accountManager.getOwnUuid());
 324         }
 325         updateAccountAttributes();
 326     }
 327
 328     /**
 329      * This is used for checking a set of phone numbers for registration on Signal
 330      *
 331      * @param numbers The set of phone number in question
 332      * @return A map of numbers to booleans. True if registered, false otherwise. Should never be null
 333      * @throws IOException if its unable to get the contacts to check if they're registered
 334      */
 335     public Map<String, Boolean> areUsersRegistered(Set<String> numbers) throws IOException {
 336         // Note "contactDetails" has no optionals. It only gives us info on users who are registered
 337         var contactDetails = getRegisteredUsers(numbers);
 338
 339         var registeredUsers = contactDetails.keySet();
 340
 341         return numbers.stream().collect(Collectors.toMap(x -> x, registeredUsers::contains));
 342     }
 343
 344     public void updateAccountAttributes() throws IOException {
 345         accountManager.setAccountAttributes(account.getEncryptedDeviceName(),
 346                 null,
 347                 account.getLocalRegistrationId(),
 348                 true,
 349                 // set legacy pin only if no KBS master key is set
 350                 account.getPinMasterKey() == null ? account.getRegistrationLockPin() : null,
 351                 account.getPinMasterKey() == null ? null : account.getPinMasterKey().deriveRegistrationLock(),
 352                 account.getSelfUnidentifiedAccessKey(),
 353                 account.isUnrestrictedUnidentifiedAccess(),
 354                 capabilities,
 355                 account.isDiscoverableByPhoneNumber());
 356     }
 357
 358     /**
 359      * @param givenName  if null, the previous givenName will be kept
 360      * @param familyName if null, the previous familyName will be kept
 361      * @param about      if null, the previous about text will be kept
 362      * @param aboutEmoji if null, the previous about emoji will be kept
 363      * @param avatar     if avatar is null the image from the local avatar store is used (if present),
 364      */
 365     public void setProfile(
 366             String givenName, final String familyName, String about, String aboutEmoji, Optional<File> avatar
 367     ) throws IOException {
 368         var profile = getRecipientProfile(account.getSelfRecipientId());
 369         var builder = profile == null ? Profile.newBuilder() : Profile.newBuilder(profile);
 370         if (givenName != null) {
 371             builder.withGivenName(givenName);
 372         }
 373         if (familyName != null) {
 374             builder.withFamilyName(familyName);
 375         }
 376         if (about != null) {
 377             builder.withAbout(about);
 378         }
 379         if (aboutEmoji != null) {
 380             builder.withAboutEmoji(aboutEmoji);
 381         }
 382         var newProfile = builder.build();
 383
 384         try (final var streamDetails = avatar == null
 385                 ? avatarStore.retrieveProfileAvatar(getSelfAddress())
 386                 : avatar.isPresent() ? Utils.createStreamDetailsFromFile(avatar.get()) : null) {
 387             accountManager.setVersionedProfile(account.getUuid(),
 388                     account.getProfileKey(),
 389                     newProfile.getInternalServiceName(),
 390                     newProfile.getAbout() == null ? "" : newProfile.getAbout(),
 391                     newProfile.getAboutEmoji() == null ? "" : newProfile.getAboutEmoji(),
 392                     streamDetails);
 393         }
 394
 395         if (avatar != null) {
 396             if (avatar.isPresent()) {
 397                 avatarStore.storeProfileAvatar(getSelfAddress(),
 398                         outputStream -> IOUtils.copyFileToStream(avatar.get(), outputStream));
 399             } else {
 400                 avatarStore.deleteProfileAvatar(getSelfAddress());
 401             }
 402         }
 403         account.getProfileStore().storeProfile(account.getSelfRecipientId(), newProfile);
 404
 405         try {
 406             sendSyncMessage(SignalServiceSyncMessage.forFetchLatest(SignalServiceSyncMessage.FetchType.LOCAL_PROFILE));
 407         } catch (UntrustedIdentityException ignored) {
 408         }
 409     }
 410
 411     public void unregister() throws IOException {
 412         // When setting an empty GCM id, the Signal-Server also sets the fetchesMessages property to false.
 413         // If this is the master device, other users can't send messages to this number anymore.
 414         // If this is a linked device, other users can still send messages, but this device doesn't receive them anymore.
 415         accountManager.setGcmId(Optional.absent());
 416
 417         account.setRegistered(false);
 418     }
 419
 420     public void deleteAccount() throws IOException {
 421         accountManager.deleteAccount();
 422
 423         account.setRegistered(false);
 424     }
 425
 426     public List<Device> getLinkedDevices() throws IOException {
 427         var devices = accountManager.getDevices();
 428         account.setMultiDevice(devices.size() > 1);
 429         var identityKey = account.getIdentityKeyPair().getPrivateKey();
 430         return devices.stream().map(d -> {
 431             String deviceName = d.getName();
 432             if (deviceName != null) {
 433                 try {
 434                     deviceName = DeviceNameUtil.decryptDeviceName(deviceName, identityKey);
 435                 } catch (IOException e) {
 436                     logger.debug("Failed to decrypt device name, maybe plain text?", e);
 437                 }
 438             }
 439             return new Device(d.getId(), deviceName, d.getCreated(), d.getLastSeen());
 440         }).collect(Collectors.toList());
 441     }
 442
 443     public void removeLinkedDevices(int deviceId) throws IOException {
 444         accountManager.removeDevice(deviceId);
 445         var devices = accountManager.getDevices();
 446         account.setMultiDevice(devices.size() > 1);
 447     }
 448
 449     public void addDeviceLink(URI linkUri) throws IOException, InvalidKeyException {
 450         var info = DeviceLinkInfo.parseDeviceLinkUri(linkUri);
 451
 452         addDevice(info.deviceIdentifier, info.deviceKey);
 453     }
 454
 455     private void addDevice(String deviceIdentifier, ECPublicKey deviceKey) throws IOException, InvalidKeyException {
 456         var identityKeyPair = getIdentityKeyPair();
 457         var verificationCode = accountManager.getNewDeviceVerificationCode();
 458
 459         accountManager.addDevice(deviceIdentifier,
 460                 deviceKey,
 461                 identityKeyPair,
 462                 Optional.of(account.getProfileKey().serialize()),
 463                 verificationCode);
 464         account.setMultiDevice(true);
 465     }
 466
 467     public void setRegistrationLockPin(Optional<String> pin) throws IOException, UnauthenticatedResponseException {
 468         if (!account.isMasterDevice()) {
 469             throw new RuntimeException("Only master device can set a PIN");
 470         }
 471         if (pin.isPresent()) {
 472             final var masterKey = account.getPinMasterKey() != null
 473                     ? account.getPinMasterKey()
 474                     : KeyUtils.createMasterKey();
 475
 476             pinHelper.setRegistrationLockPin(pin.get(), masterKey);
 477
 478             account.setRegistrationLockPin(pin.get(), masterKey);
 479         } else {
 480             // Remove legacy registration lock
 481             accountManager.removeRegistrationLockV1();
 482
 483             // Remove KBS Pin
 484             pinHelper.removeRegistrationLockPin();
 485
 486             account.setRegistrationLockPin(null, null);
 487         }
 488     }
 489
 490     void refreshPreKeys() throws IOException {
 491         var oneTimePreKeys = generatePreKeys();
 492         final var identityKeyPair = getIdentityKeyPair();
 493         var signedPreKeyRecord = generateSignedPreKey(identityKeyPair);
 494
 495         accountManager.setPreKeys(identityKeyPair.getPublicKey(), signedPreKeyRecord, oneTimePreKeys);
 496     }
 497
 498     private List<PreKeyRecord> generatePreKeys() {
 499         final var offset = account.getPreKeyIdOffset();
 500
 501         var records = KeyUtils.generatePreKeyRecords(offset, ServiceConfig.PREKEY_BATCH_SIZE);
 502         account.addPreKeys(records);
 503
 504         return records;
 505     }
 506
 507     private SignedPreKeyRecord generateSignedPreKey(IdentityKeyPair identityKeyPair) {
 508         final var signedPreKeyId = account.getNextSignedPreKeyId();
 509
 510         var record = KeyUtils.generateSignedPreKeyRecord(identityKeyPair, signedPreKeyId);
 511         account.addSignedPreKey(record);
 512
 513         return record;
 514     }
 515
 516     private SignalServiceMessagePipe getOrCreateMessagePipe() {
 517         if (messagePipe == null) {
 518             messagePipe = messageReceiver.createMessagePipe();
 519         }
 520         return messagePipe;
 521     }
 522
 523     private SignalServiceMessagePipe getOrCreateUnidentifiedMessagePipe() {
 524         if (unidentifiedMessagePipe == null) {
 525             unidentifiedMessagePipe = messageReceiver.createUnidentifiedMessagePipe();
 526         }
 527         return unidentifiedMessagePipe;
 528     }
 529
 530     private SignalServiceMessageSender createMessageSender() {
 531         return new SignalServiceMessageSender(serviceEnvironmentConfig.getSignalServiceConfiguration(),
 532                 account.getUuid(),
 533                 account.getUsername(),
 534                 account.getPassword(),
 535                 account.getDeviceId(),
 536                 account.getSignalProtocolStore(),
 537                 userAgent,
 538                 account.isMultiDevice(),
 539                 Optional.fromNullable(messagePipe),
 540                 Optional.fromNullable(unidentifiedMessagePipe),
 541                 Optional.absent(),
 542                 clientZkProfileOperations,
 543                 executor,
 544                 ServiceConfig.MAX_ENVELOPE_SIZE,
 545                 ServiceConfig.AUTOMATIC_NETWORK_RETRY);
 546     }
 547
 548     public Profile getRecipientProfile(
 549             RecipientId recipientId
 550     ) {
 551         return getRecipientProfile(recipientId, false);
 552     }
 553
 554     private final Set<RecipientId> pendingProfileRequest = new HashSet<>();
 555
 556     Profile getRecipientProfile(
 557             RecipientId recipientId, boolean force
 558     ) {
 559         var profile = account.getProfileStore().getProfile(recipientId);
 560
 561         var now = new Date().getTime();
 562         // Profiles are cached for 24h before retrieving them again, unless forced
 563         if (!force && profile != null && now - profile.getLastUpdateTimestamp() < 24 * 60 * 60 * 1000) {
 564             return profile;
 565         }
 566
 567         synchronized (pendingProfileRequest) {
 568             if (pendingProfileRequest.contains(recipientId)) {
 569                 return profile;
 570             }
 571             pendingProfileRequest.add(recipientId);
 572         }
 573         final SignalServiceProfile encryptedProfile;
 574         try {
 575             encryptedProfile = retrieveEncryptedProfile(recipientId);
 576         } finally {
 577             synchronized (pendingProfileRequest) {
 578                 pendingProfileRequest.remove(recipientId);
 579             }
 580         }
 581         if (encryptedProfile == null) {
 582             return null;
 583         }
 584
 585         var profileKey = account.getProfileStore().getProfileKey(recipientId);
 586         if (profileKey == null) {
 587             profile = new Profile(new Date().getTime(),
 588                     null,
 589                     null,
 590                     null,
 591                     null,
 592                     ProfileUtils.getUnidentifiedAccessMode(encryptedProfile, null),
 593                     ProfileUtils.getCapabilities(encryptedProfile));
 594         } else {
 595             profile = decryptProfileAndDownloadAvatar(recipientId, profileKey, encryptedProfile);
 596         }
 597         account.getProfileStore().storeProfile(recipientId, profile);
 598
 599         return profile;
 600     }
 601
 602     private SignalServiceProfile retrieveEncryptedProfile(RecipientId recipientId) {
 603         try {
 604             return retrieveProfileAndCredential(recipientId, SignalServiceProfile.RequestType.PROFILE).getProfile();
 605         } catch (IOException e) {
 606             logger.warn("Failed to retrieve profile, ignoring: {}", e.getMessage());
 607             return null;
 608         }
 609     }
 610
 611     private ProfileAndCredential retrieveProfileAndCredential(
 612             final RecipientId recipientId, final SignalServiceProfile.RequestType requestType
 613     ) throws IOException {
 614         final var profileAndCredential = profileHelper.retrieveProfileSync(recipientId, requestType);
 615         final var profile = profileAndCredential.getProfile();
 616
 617         try {
 618             var newIdentity = account.getIdentityKeyStore()
 619                     .saveIdentity(recipientId,
 620                             new IdentityKey(Base64.getDecoder().decode(profile.getIdentityKey())),
 621                             new Date());
 622
 623             if (newIdentity) {
 624                 account.getSessionStore().archiveSessions(recipientId);
 625             }
 626         } catch (InvalidKeyException ignored) {
 627             logger.warn("Got invalid identity key in profile for {}",
 628                     resolveSignalServiceAddress(recipientId).getLegacyIdentifier());
 629         }
 630         return profileAndCredential;
 631     }
 632
 633     private ProfileKeyCredential getRecipientProfileKeyCredential(RecipientId recipientId) {
 634         var profileKeyCredential = account.getProfileStore().getProfileKeyCredential(recipientId);
 635         if (profileKeyCredential != null) {
 636             return profileKeyCredential;
 637         }
 638
 639         ProfileAndCredential profileAndCredential;
 640         try {
 641             profileAndCredential = retrieveProfileAndCredential(recipientId,
 642                     SignalServiceProfile.RequestType.PROFILE_AND_CREDENTIAL);
 643         } catch (IOException e) {
 644             logger.warn("Failed to retrieve profile key credential, ignoring: {}", e.getMessage());
 645             return null;
 646         }
 647
 648         profileKeyCredential = profileAndCredential.getProfileKeyCredential().orNull();
 649         account.getProfileStore().storeProfileKeyCredential(recipientId, profileKeyCredential);
 650
 651         var profileKey = account.getProfileStore().getProfileKey(recipientId);
 652         if (profileKey != null) {
 653             final var profile = decryptProfileAndDownloadAvatar(recipientId,
 654                     profileKey,
 655                     profileAndCredential.getProfile());
 656             account.getProfileStore().storeProfile(recipientId, profile);
 657         }
 658
 659         return profileKeyCredential;
 660     }
 661
 662     private Profile decryptProfileAndDownloadAvatar(
 663             final RecipientId recipientId, final ProfileKey profileKey, final SignalServiceProfile encryptedProfile
 664     ) {
 665         if (encryptedProfile.getAvatar() != null) {
 666             downloadProfileAvatar(resolveSignalServiceAddress(recipientId), encryptedProfile.getAvatar(), profileKey);
 667         }
 668
 669         return ProfileUtils.decryptProfile(profileKey, encryptedProfile);
 670     }
 671
 672     private Optional<SignalServiceAttachmentStream> createGroupAvatarAttachment(GroupId groupId) throws IOException {
 673         final var streamDetails = avatarStore.retrieveGroupAvatar(groupId);
 674         if (streamDetails == null) {
 675             return Optional.absent();
 676         }
 677
 678         return Optional.of(AttachmentUtils.createAttachment(streamDetails, Optional.absent()));
 679     }
 680
 681     private Optional<SignalServiceAttachmentStream> createContactAvatarAttachment(SignalServiceAddress address) throws IOException {
 682         final var streamDetails = avatarStore.retrieveContactAvatar(address);
 683         if (streamDetails == null) {
 684             return Optional.absent();
 685         }
 686
 687         return Optional.of(AttachmentUtils.createAttachment(streamDetails, Optional.absent()));
 688     }
 689
 690     private GroupInfo getGroupForSending(GroupId groupId) throws GroupNotFoundException, NotAGroupMemberException {
 691         var g = getGroup(groupId);
 692         if (g == null) {
 693             throw new GroupNotFoundException(groupId);
 694         }
 695         if (!g.isMember(account.getSelfRecipientId())) {
 696             throw new NotAGroupMemberException(groupId, g.getTitle());
 697         }
 698         return g;
 699     }
 700
 701     private GroupInfo getGroupForUpdating(GroupId groupId) throws GroupNotFoundException, NotAGroupMemberException {
 702         var g = getGroup(groupId);
 703         if (g == null) {
 704             throw new GroupNotFoundException(groupId);
 705         }
 706         if (!g.isMember(account.getSelfRecipientId()) && !g.isPendingMember(account.getSelfRecipientId())) {
 707             throw new NotAGroupMemberException(groupId, g.getTitle());
 708         }
 709         return g;
 710     }
 711
 712     public List<GroupInfo> getGroups() {
 713         return account.getGroupStore().getGroups();
 714     }
 715
 716     public Pair<Long, List<SendMessageResult>> sendGroupMessage(
 717             String messageText, List<String> attachments, GroupId groupId
 718     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 719         final var messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
 720         if (attachments != null) {
 721             messageBuilder.withAttachments(AttachmentUtils.getSignalServiceAttachments(attachments));
 722         }
 723
 724         return sendGroupMessage(messageBuilder, groupId);
 725     }
 726
 727     public Pair<Long, List<SendMessageResult>> sendGroupMessageReaction(
 728             String emoji, boolean remove, String targetAuthor, long targetSentTimestamp, GroupId groupId
 729     ) throws IOException, InvalidNumberException, NotAGroupMemberException, GroupNotFoundException {
 730         var targetAuthorRecipientId = canonicalizeAndResolveRecipient(targetAuthor);
 731         var reaction = new SignalServiceDataMessage.Reaction(emoji,
 732                 remove,
 733                 resolveSignalServiceAddress(targetAuthorRecipientId),
 734                 targetSentTimestamp);
 735         final var messageBuilder = SignalServiceDataMessage.newBuilder().withReaction(reaction);
 736
 737         return sendGroupMessage(messageBuilder, groupId);
 738     }
 739
 740     public Pair<Long, List<SendMessageResult>> sendGroupMessage(
 741             SignalServiceDataMessage.Builder messageBuilder, GroupId groupId
 742     ) throws IOException, GroupNotFoundException, NotAGroupMemberException {
 743         final var g = getGroupForSending(groupId);
 744
 745         GroupUtils.setGroupContext(messageBuilder, g);
 746         messageBuilder.withExpiration(g.getMessageExpirationTime());
 747
 748         return sendMessage(messageBuilder, g.getMembersWithout(account.getSelfRecipientId()));
 749     }
 750
 751     public Pair<Long, List<SendMessageResult>> sendQuitGroupMessage(GroupId groupId) throws GroupNotFoundException, IOException, NotAGroupMemberException {
 752         SignalServiceDataMessage.Builder messageBuilder;
 753
 754         final var g = getGroupForUpdating(groupId);
 755         if (g instanceof GroupInfoV1) {
 756             var groupInfoV1 = (GroupInfoV1) g;
 757             var group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.QUIT).withId(groupId.serialize()).build();
 758             messageBuilder = SignalServiceDataMessage.newBuilder().asGroupMessage(group);
 759             groupInfoV1.removeMember(account.getSelfRecipientId());
 760             account.getGroupStore().updateGroup(groupInfoV1);
 761         } else {
 762             final var groupInfoV2 = (GroupInfoV2) g;
 763             final var groupGroupChangePair = groupHelper.leaveGroup(groupInfoV2);
 764             groupInfoV2.setGroup(groupGroupChangePair.first(), this::resolveRecipient);
 765             messageBuilder = getGroupUpdateMessageBuilder(groupInfoV2, groupGroupChangePair.second().toByteArray());
 766             account.getGroupStore().updateGroup(groupInfoV2);
 767         }
 768
 769         return sendMessage(messageBuilder, g.getMembersWithout(account.getSelfRecipientId()));
 770     }
 771
 772     public Pair<GroupId, List<SendMessageResult>> updateGroup(
 773             GroupId groupId, String name, List<String> members, File avatarFile
 774     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, InvalidNumberException, NotAGroupMemberException {
 775         final var membersRecipientIds = members == null ? null : getSignalServiceAddresses(members);
 776         if (membersRecipientIds != null) {
 777             membersRecipientIds.remove(account.getSelfRecipientId());
 778         }
 779         return sendUpdateGroupMessage(groupId, name, membersRecipientIds, avatarFile);
 780     }
 781
 782     private Pair<GroupId, List<SendMessageResult>> sendUpdateGroupMessage(
 783             GroupId groupId, String name, Set<RecipientId> members, File avatarFile
 784     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 785         GroupInfo g;
 786         SignalServiceDataMessage.Builder messageBuilder;
 787         if (groupId == null) {
 788             // Create new group
 789             var gv2Pair = groupHelper.createGroupV2(name == null ? "" : name,
 790                     members == null ? Set.of() : members,
 791                     avatarFile);
 792             if (gv2Pair == null) {
 793                 var gv1 = new GroupInfoV1(GroupIdV1.createRandom());
 794                 gv1.addMembers(List.of(account.getSelfRecipientId()));
 795                 updateGroupV1(gv1, name, members, avatarFile);
 796                 messageBuilder = getGroupUpdateMessageBuilder(gv1);
 797                 g = gv1;
 798             } else {
 799                 final var gv2 = gv2Pair.first();
 800                 final var decryptedGroup = gv2Pair.second();
 801
 802                 gv2.setGroup(decryptedGroup, this::resolveRecipient);
 803                 if (avatarFile != null) {
 804                     avatarStore.storeGroupAvatar(gv2.getGroupId(),
 805                             outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
 806                 }
 807                 messageBuilder = getGroupUpdateMessageBuilder(gv2, null);
 808                 g = gv2;
 809             }
 810         } else {
 811             var group = getGroupForUpdating(groupId);
 812             if (group instanceof GroupInfoV2) {
 813                 final var groupInfoV2 = (GroupInfoV2) group;
 814
 815                 Pair<Long, List<SendMessageResult>> result = null;
 816                 if (groupInfoV2.isPendingMember(account.getSelfRecipientId())) {
 817                     var groupGroupChangePair = groupHelper.acceptInvite(groupInfoV2);
 818                     result = sendUpdateGroupMessage(groupInfoV2,
 819                             groupGroupChangePair.first(),
 820                             groupGroupChangePair.second());
 821                 }
 822
 823                 if (members != null) {
 824                     final var newMembers = new HashSet<>(members);
 825                     newMembers.removeAll(group.getMembers());
 826                     if (newMembers.size() > 0) {
 827                         var groupGroupChangePair = groupHelper.updateGroupV2(groupInfoV2, newMembers);
 828                         result = sendUpdateGroupMessage(groupInfoV2,
 829                                 groupGroupChangePair.first(),
 830                                 groupGroupChangePair.second());
 831                     }
 832                 }
 833                 if (result == null || name != null || avatarFile != null) {
 834                     var groupGroupChangePair = groupHelper.updateGroupV2(groupInfoV2, name, avatarFile);
 835                     if (avatarFile != null) {
 836                         avatarStore.storeGroupAvatar(groupInfoV2.getGroupId(),
 837                                 outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
 838                     }
 839                     result = sendUpdateGroupMessage(groupInfoV2,
 840                             groupGroupChangePair.first(),
 841                             groupGroupChangePair.second());
 842                 }
 843
 844                 return new Pair<>(group.getGroupId(), result.second());
 845             } else {
 846                 var gv1 = (GroupInfoV1) group;
 847                 updateGroupV1(gv1, name, members, avatarFile);
 848                 messageBuilder = getGroupUpdateMessageBuilder(gv1);
 849                 g = gv1;
 850             }
 851         }
 852
 853         account.getGroupStore().updateGroup(g);
 854
 855         final var result = sendMessage(messageBuilder,
 856                 g.getMembersIncludingPendingWithout(account.getSelfRecipientId()));
 857         return new Pair<>(g.getGroupId(), result.second());
 858     }
 859
 860     private void updateGroupV1(
 861             final GroupInfoV1 g, final String name, final Collection<RecipientId> members, final File avatarFile
 862     ) throws IOException {
 863         if (name != null) {
 864             g.name = name;
 865         }
 866
 867         if (members != null) {
 868             final var newMemberAddresses = members.stream()
 869                     .filter(member -> !g.isMember(member))
 870                     .map(this::resolveSignalServiceAddress)
 871                     .collect(Collectors.toList());
 872             final var newE164Members = new HashSet<String>();
 873             for (var member : newMemberAddresses) {
 874                 if (!member.getNumber().isPresent()) {
 875                     continue;
 876                 }
 877                 newE164Members.add(member.getNumber().get());
 878             }
 879
 880             final var registeredUsers = getRegisteredUsers(newE164Members);
 881             if (registeredUsers.size() != newE164Members.size()) {
 882                 // Some of the new members are not registered on Signal
 883                 newE164Members.removeAll(registeredUsers.keySet());
 884                 throw new IOException("Failed to add members "
 885                         + String.join(", ", newE164Members)
 886                         + " to group: Not registered on Signal");
 887             }
 888
 889             g.addMembers(members);
 890         }
 891
 892         if (avatarFile != null) {
 893             avatarStore.storeGroupAvatar(g.getGroupId(),
 894                     outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
 895         }
 896     }
 897
 898     public Pair<GroupId, List<SendMessageResult>> joinGroup(
 899             GroupInviteLinkUrl inviteLinkUrl
 900     ) throws IOException, GroupLinkNotActiveException {
 901         return sendJoinGroupMessage(inviteLinkUrl);
 902     }
 903
 904     private Pair<GroupId, List<SendMessageResult>> sendJoinGroupMessage(
 905             GroupInviteLinkUrl inviteLinkUrl
 906     ) throws IOException, GroupLinkNotActiveException {
 907         final var groupJoinInfo = groupHelper.getDecryptedGroupJoinInfo(inviteLinkUrl.getGroupMasterKey(),
 908                 inviteLinkUrl.getPassword());
 909         final var groupChange = groupHelper.joinGroup(inviteLinkUrl.getGroupMasterKey(),
 910                 inviteLinkUrl.getPassword(),
 911                 groupJoinInfo);
 912         final var group = getOrMigrateGroup(inviteLinkUrl.getGroupMasterKey(),
 913                 groupJoinInfo.getRevision() + 1,
 914                 groupChange.toByteArray());
 915
 916         if (group.getGroup() == null) {
 917             // Only requested member, can't send update to group members
 918             return new Pair<>(group.getGroupId(), List.of());
 919         }
 920
 921         final var result = sendUpdateGroupMessage(group, group.getGroup(), groupChange);
 922
 923         return new Pair<>(group.getGroupId(), result.second());
 924     }
 925
 926     private static int currentTimeDays() {
 927         return (int) TimeUnit.MILLISECONDS.toDays(System.currentTimeMillis());
 928     }
 929
 930     private GroupsV2AuthorizationString getGroupAuthForToday(
 931             final GroupSecretParams groupSecretParams
 932     ) throws IOException {
 933         final var today = currentTimeDays();
 934         // Returns credentials for the next 7 days
 935         final var credentials = groupsV2Api.getCredentials(today);
 936         // TODO cache credentials until they expire
 937         var authCredentialResponse = credentials.get(today);
 938         try {
 939             return groupsV2Api.getGroupsV2AuthorizationString(account.getUuid(),
 940                     today,
 941                     groupSecretParams,
 942                     authCredentialResponse);
 943         } catch (VerificationFailedException e) {
 944             throw new IOException(e);
 945         }
 946     }
 947
 948     private Pair<Long, List<SendMessageResult>> sendUpdateGroupMessage(
 949             GroupInfoV2 group, DecryptedGroup newDecryptedGroup, GroupChange groupChange
 950     ) throws IOException {
 951         group.setGroup(newDecryptedGroup, this::resolveRecipient);
 952         final var messageBuilder = getGroupUpdateMessageBuilder(group, groupChange.toByteArray());
 953         account.getGroupStore().updateGroup(group);
 954         return sendMessage(messageBuilder, group.getMembersIncludingPendingWithout(account.getSelfRecipientId()));
 955     }
 956
 957     Pair<Long, List<SendMessageResult>> sendGroupInfoMessage(
 958             GroupIdV1 groupId, SignalServiceAddress recipient
 959     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, AttachmentInvalidException {
 960         GroupInfoV1 g;
 961         var group = getGroupForSending(groupId);
 962         if (!(group instanceof GroupInfoV1)) {
 963             throw new RuntimeException("Received an invalid group request for a v2 group!");
 964         }
 965         g = (GroupInfoV1) group;
 966
 967         final var recipientId = resolveRecipient(recipient);
 968         if (!g.isMember(recipientId)) {
 969             throw new NotAGroupMemberException(groupId, g.name);
 970         }
 971
 972         var messageBuilder = getGroupUpdateMessageBuilder(g);
 973
 974         // Send group message only to the recipient who requested it
 975         return sendMessage(messageBuilder, Set.of(recipientId));
 976     }
 977
 978     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfoV1 g) throws AttachmentInvalidException {
 979         var group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.UPDATE)
 980                 .withId(g.getGroupId().serialize())
 981                 .withName(g.name)
 982                 .withMembers(g.getMembers()
 983                         .stream()
 984                         .map(this::resolveSignalServiceAddress)
 985                         .collect(Collectors.toList()));
 986
 987         try {
 988             final var attachment = createGroupAvatarAttachment(g.getGroupId());
 989             if (attachment.isPresent()) {
 990                 group.withAvatar(attachment.get());
 991             }
 992         } catch (IOException e) {
 993             throw new AttachmentInvalidException(g.getGroupId().toBase64(), e);
 994         }
 995
 996         return SignalServiceDataMessage.newBuilder()
 997                 .asGroupMessage(group.build())
 998                 .withExpiration(g.getMessageExpirationTime());
 999     }
1000
1001     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfoV2 g, byte[] signedGroupChange) {
1002         var group = SignalServiceGroupV2.newBuilder(g.getMasterKey())
1003                 .withRevision(g.getGroup().getRevision())
1004                 .withSignedGroupChange(signedGroupChange);
1005         return SignalServiceDataMessage.newBuilder()
1006                 .asGroupMessage(group.build())
1007                 .withExpiration(g.getMessageExpirationTime());
1008     }
1009
1010     Pair<Long, List<SendMessageResult>> sendGroupInfoRequest(
1011             GroupIdV1 groupId, SignalServiceAddress recipient
1012     ) throws IOException {
1013         var group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.REQUEST_INFO).withId(groupId.serialize());
1014
1015         var messageBuilder = SignalServiceDataMessage.newBuilder().asGroupMessage(group.build());
1016
1017         // Send group info request message to the recipient who sent us a message with this groupId
1018         return sendMessage(messageBuilder, Set.of(resolveRecipient(recipient)));
1019     }
1020
1021     void sendReceipt(
1022             SignalServiceAddress remoteAddress, long messageId
1023     ) throws IOException, UntrustedIdentityException {
1024         var receiptMessage = new SignalServiceReceiptMessage(SignalServiceReceiptMessage.Type.DELIVERY,
1025                 List.of(messageId),
1026                 System.currentTimeMillis());
1027
1028         createMessageSender().sendReceipt(remoteAddress,
1029                 unidentifiedAccessHelper.getAccessFor(resolveRecipient(remoteAddress)),
1030                 receiptMessage);
1031     }
1032
1033     public Pair<Long, List<SendMessageResult>> sendMessage(
1034             String messageText, List<String> attachments, List<String> recipients
1035     ) throws IOException, AttachmentInvalidException, InvalidNumberException {
1036         final var messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
1037         if (attachments != null) {
1038             var attachmentStreams = AttachmentUtils.getSignalServiceAttachments(attachments);
1039
1040             // Upload attachments here, so we only upload once even for multiple recipients
1041             var messageSender = createMessageSender();
1042             var attachmentPointers = new ArrayList<SignalServiceAttachment>(attachmentStreams.size());
1043             for (var attachment : attachmentStreams) {
1044                 if (attachment.isStream()) {
1045                     attachmentPointers.add(messageSender.uploadAttachment(attachment.asStream()));
1046                 } else if (attachment.isPointer()) {
1047                     attachmentPointers.add(attachment.asPointer());
1048                 }
1049             }
1050
1051             messageBuilder.withAttachments(attachmentPointers);
1052         }
1053         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
1054     }
1055
1056     public Pair<Long, SendMessageResult> sendSelfMessage(
1057             String messageText, List<String> attachments
1058     ) throws IOException, AttachmentInvalidException {
1059         final var messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
1060         if (attachments != null) {
1061             messageBuilder.withAttachments(AttachmentUtils.getSignalServiceAttachments(attachments));
1062         }
1063         return sendSelfMessage(messageBuilder);
1064     }
1065
1066     public Pair<Long, List<SendMessageResult>> sendRemoteDeleteMessage(
1067             long targetSentTimestamp, List<String> recipients
1068     ) throws IOException, InvalidNumberException {
1069         var delete = new SignalServiceDataMessage.RemoteDelete(targetSentTimestamp);
1070         final var messageBuilder = SignalServiceDataMessage.newBuilder().withRemoteDelete(delete);
1071         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
1072     }
1073
1074     public Pair<Long, List<SendMessageResult>> sendGroupRemoteDeleteMessage(
1075             long targetSentTimestamp, GroupId groupId
1076     ) throws IOException, NotAGroupMemberException, GroupNotFoundException {
1077         var delete = new SignalServiceDataMessage.RemoteDelete(targetSentTimestamp);
1078         final var messageBuilder = SignalServiceDataMessage.newBuilder().withRemoteDelete(delete);
1079         return sendGroupMessage(messageBuilder, groupId);
1080     }
1081
1082     public Pair<Long, List<SendMessageResult>> sendMessageReaction(
1083             String emoji, boolean remove, String targetAuthor, long targetSentTimestamp, List<String> recipients
1084     ) throws IOException, InvalidNumberException {
1085         var targetAuthorRecipientId = canonicalizeAndResolveRecipient(targetAuthor);
1086         var reaction = new SignalServiceDataMessage.Reaction(emoji,
1087                 remove,
1088                 resolveSignalServiceAddress(targetAuthorRecipientId),
1089                 targetSentTimestamp);
1090         final var messageBuilder = SignalServiceDataMessage.newBuilder().withReaction(reaction);
1091         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
1092     }
1093
1094     public Pair<Long, List<SendMessageResult>> sendEndSessionMessage(List<String> recipients) throws IOException, InvalidNumberException {
1095         var messageBuilder = SignalServiceDataMessage.newBuilder().asEndSessionMessage();
1096
1097         final var signalServiceAddresses = getSignalServiceAddresses(recipients);
1098         try {
1099             return sendMessage(messageBuilder, signalServiceAddresses);
1100         } catch (Exception e) {
1101             for (var address : signalServiceAddresses) {
1102                 handleEndSession(address);
1103             }
1104             throw e;
1105         }
1106     }
1107
1108     void renewSession(RecipientId recipientId) throws IOException {
1109         account.getSessionStore().archiveSessions(recipientId);
1110         if (!recipientId.equals(getSelfRecipientId())) {
1111             sendNullMessage(recipientId);
1112         }
1113     }
1114
1115     public String getContactName(String number) throws InvalidNumberException {
1116         var contact = account.getContactStore().getContact(canonicalizeAndResolveRecipient(number));
1117         return contact == null || contact.getName() == null ? "" : contact.getName();
1118     }
1119
1120     public void setContactName(String number, String name) throws InvalidNumberException, NotMasterDeviceException {
1121         if (!account.isMasterDevice()) {
1122             throw new NotMasterDeviceException();
1123         }
1124         final var recipientId = canonicalizeAndResolveRecipient(number);
1125         var contact = account.getContactStore().getContact(recipientId);
1126         final var builder = contact == null ? Contact.newBuilder() : Contact.newBuilder(contact);
1127         account.getContactStore().storeContact(recipientId, builder.withName(name).build());
1128     }
1129
1130     public void setContactBlocked(
1131             String number, boolean blocked
1132     ) throws InvalidNumberException, NotMasterDeviceException {
1133         if (!account.isMasterDevice()) {
1134             throw new NotMasterDeviceException();
1135         }
1136         setContactBlocked(canonicalizeAndResolveRecipient(number), blocked);
1137     }
1138
1139     private void setContactBlocked(RecipientId recipientId, boolean blocked) {
1140         var contact = account.getContactStore().getContact(recipientId);
1141         final var builder = contact == null ? Contact.newBuilder() : Contact.newBuilder(contact);
1142         account.getContactStore().storeContact(recipientId, builder.withBlocked(blocked).build());
1143     }
1144
1145     public void setGroupBlocked(final GroupId groupId, final boolean blocked) throws GroupNotFoundException {
1146         var group = getGroup(groupId);
1147         if (group == null) {
1148             throw new GroupNotFoundException(groupId);
1149         }
1150
1151         group.setBlocked(blocked);
1152         account.getGroupStore().updateGroup(group);
1153     }
1154
1155     private void setExpirationTimer(RecipientId recipientId, int messageExpirationTimer) {
1156         var contact = account.getContactStore().getContact(recipientId);
1157         if (contact != null && contact.getMessageExpirationTime() == messageExpirationTimer) {
1158             return;
1159         }
1160         final var builder = contact == null ? Contact.newBuilder() : Contact.newBuilder(contact);
1161         account.getContactStore()
1162                 .storeContact(recipientId, builder.withMessageExpirationTime(messageExpirationTimer).build());
1163     }
1164
1165     private void sendExpirationTimerUpdate(RecipientId recipientId) throws IOException {
1166         final var messageBuilder = SignalServiceDataMessage.newBuilder().asExpirationUpdate();
1167         sendMessage(messageBuilder, Set.of(recipientId));
1168     }
1169
1170     /**
1171      * Change the expiration timer for a contact
1172      */
1173     public void setExpirationTimer(
1174             String number, int messageExpirationTimer
1175     ) throws IOException, InvalidNumberException {
1176         var recipientId = canonicalizeAndResolveRecipient(number);
1177         setExpirationTimer(recipientId, messageExpirationTimer);
1178         sendExpirationTimerUpdate(recipientId);
1179     }
1180
1181     /**
1182      * Change the expiration timer for a group
1183      */
1184     public void setExpirationTimer(GroupId groupId, int messageExpirationTimer) {
1185         var g = getGroup(groupId);
1186         if (g instanceof GroupInfoV1) {
1187             var groupInfoV1 = (GroupInfoV1) g;
1188             groupInfoV1.messageExpirationTime = messageExpirationTimer;
1189             account.getGroupStore().updateGroup(groupInfoV1);
1190         } else {
1191             throw new RuntimeException("TODO Not implemented!");
1192         }
1193     }
1194
1195     /**
1196      * Upload the sticker pack from path.
1197      *
1198      * @param path Path can be a path to a manifest.json file or to a zip file that contains a manifest.json file
1199      * @return if successful, returns the URL to install the sticker pack in the signal app
1200      */
1201     public String uploadStickerPack(File path) throws IOException, StickerPackInvalidException {
1202         var manifest = StickerUtils.getSignalServiceStickerManifestUpload(path);
1203
1204         var messageSender = createMessageSender();
1205
1206         var packKey = KeyUtils.createStickerUploadKey();
1207         var packId = messageSender.uploadStickerManifest(manifest, packKey);
1208
1209         var sticker = new Sticker(StickerPackId.deserialize(Hex.fromStringCondensed(packId)), packKey);
1210         account.getStickerStore().updateSticker(sticker);
1211
1212         try {
1213             return new URI("https",
1214                     "signal.art",
1215                     "/addstickers/",
1216                     "pack_id=" + URLEncoder.encode(packId, StandardCharsets.UTF_8) + "&pack_key=" + URLEncoder.encode(
1217                             Hex.toStringCondensed(packKey),
1218                             StandardCharsets.UTF_8)).toString();
1219         } catch (URISyntaxException e) {
1220             throw new AssertionError(e);
1221         }
1222     }
1223
1224     public void requestAllSyncData() throws IOException {
1225         requestSyncGroups();
1226         requestSyncContacts();
1227         requestSyncBlocked();
1228         requestSyncConfiguration();
1229         requestSyncKeys();
1230     }
1231
1232     private void requestSyncGroups() throws IOException {
1233         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1234                 .setType(SignalServiceProtos.SyncMessage.Request.Type.GROUPS)
1235                 .build();
1236         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1237         try {
1238             sendSyncMessage(message);
1239         } catch (UntrustedIdentityException e) {
1240             throw new AssertionError(e);
1241         }
1242     }
1243
1244     private void requestSyncContacts() throws IOException {
1245         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1246                 .setType(SignalServiceProtos.SyncMessage.Request.Type.CONTACTS)
1247                 .build();
1248         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1249         try {
1250             sendSyncMessage(message);
1251         } catch (UntrustedIdentityException e) {
1252             throw new AssertionError(e);
1253         }
1254     }
1255
1256     private void requestSyncBlocked() throws IOException {
1257         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1258                 .setType(SignalServiceProtos.SyncMessage.Request.Type.BLOCKED)
1259                 .build();
1260         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1261         try {
1262             sendSyncMessage(message);
1263         } catch (UntrustedIdentityException e) {
1264             throw new AssertionError(e);
1265         }
1266     }
1267
1268     private void requestSyncConfiguration() throws IOException {
1269         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1270                 .setType(SignalServiceProtos.SyncMessage.Request.Type.CONFIGURATION)
1271                 .build();
1272         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1273         try {
1274             sendSyncMessage(message);
1275         } catch (UntrustedIdentityException e) {
1276             throw new AssertionError(e);
1277         }
1278     }
1279
1280     private void requestSyncKeys() throws IOException {
1281         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1282                 .setType(SignalServiceProtos.SyncMessage.Request.Type.KEYS)
1283                 .build();
1284         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1285         try {
1286             sendSyncMessage(message);
1287         } catch (UntrustedIdentityException e) {
1288             throw new AssertionError(e);
1289         }
1290     }
1291
1292     private byte[] getSenderCertificate() {
1293         byte[] certificate;
1294         try {
1295             if (account.isPhoneNumberShared()) {
1296                 certificate = accountManager.getSenderCertificate();
1297             } else {
1298                 certificate = accountManager.getSenderCertificateForPhoneNumberPrivacy();
1299             }
1300         } catch (IOException e) {
1301             logger.warn("Failed to get sender certificate, ignoring: {}", e.getMessage());
1302             return null;
1303         }
1304         // TODO cache for a day
1305         return certificate;
1306     }
1307
1308     private void sendSyncMessage(SignalServiceSyncMessage message) throws IOException, UntrustedIdentityException {
1309         var messageSender = createMessageSender();
1310         messageSender.sendMessage(message, unidentifiedAccessHelper.getAccessForSync());
1311     }
1312
1313     private Set<RecipientId> getSignalServiceAddresses(Collection<String> numbers) throws InvalidNumberException {
1314         final var signalServiceAddresses = new HashSet<SignalServiceAddress>(numbers.size());
1315         final var addressesMissingUuid = new HashSet<SignalServiceAddress>();
1316
1317         for (var number : numbers) {
1318             final var resolvedAddress = resolveSignalServiceAddress(canonicalizeAndResolveRecipient(number));
1319             if (resolvedAddress.getUuid().isPresent()) {
1320                 signalServiceAddresses.add(resolvedAddress);
1321             } else {
1322                 addressesMissingUuid.add(resolvedAddress);
1323             }
1324         }
1325
1326         final var numbersMissingUuid = addressesMissingUuid.stream()
1327                 .map(a -> a.getNumber().get())
1328                 .collect(Collectors.toSet());
1329         Map<String, UUID> registeredUsers;
1330         try {
1331             registeredUsers = getRegisteredUsers(numbersMissingUuid);
1332         } catch (IOException e) {
1333             logger.warn("Failed to resolve uuids from server, ignoring: {}", e.getMessage());
1334             registeredUsers = Map.of();
1335         }
1336
1337         for (var address : addressesMissingUuid) {
1338             final var number = address.getNumber().get();
1339             if (registeredUsers.containsKey(number)) {
1340                 final var newAddress = resolveSignalServiceAddress(resolveRecipientTrusted(new SignalServiceAddress(
1341                         registeredUsers.get(number),
1342                         number)));
1343                 signalServiceAddresses.add(newAddress);
1344             } else {
1345                 signalServiceAddresses.add(address);
1346             }
1347         }
1348
1349         return signalServiceAddresses.stream().map(this::resolveRecipient).collect(Collectors.toSet());
1350     }
1351
1352     private RecipientId refreshRegisteredUser(RecipientId recipientId) throws IOException {
1353         final var address = resolveSignalServiceAddress(recipientId);
1354         if (!address.getNumber().isPresent()) {
1355             return recipientId;
1356         }
1357         final var number = address.getNumber().get();
1358         final var uuidMap = getRegisteredUsers(Set.of(number));
1359         return resolveRecipientTrusted(new SignalServiceAddress(uuidMap.getOrDefault(number, null), number));
1360     }
1361
1362     private Map<String, UUID> getRegisteredUsers(final Set<String> numbers) throws IOException {
1363         try {
1364             return accountManager.getRegisteredUsers(ServiceConfig.getIasKeyStore(),
1365                     numbers,
1366                     serviceEnvironmentConfig.getCdsMrenclave());
1367         } catch (Quote.InvalidQuoteFormatException | UnauthenticatedQuoteException | SignatureException | UnauthenticatedResponseException | InvalidKeyException e) {
1368             throw new IOException(e);
1369         }
1370     }
1371
1372     private Pair<Long, List<SendMessageResult>> sendMessage(
1373             SignalServiceDataMessage.Builder messageBuilder, Set<RecipientId> recipientIds
1374     ) throws IOException {
1375         final var timestamp = System.currentTimeMillis();
1376         messageBuilder.withTimestamp(timestamp);
1377         getOrCreateMessagePipe();
1378         getOrCreateUnidentifiedMessagePipe();
1379         SignalServiceDataMessage message = null;
1380         try {
1381             message = messageBuilder.build();
1382             if (message.getGroupContext().isPresent()) {
1383                 try {
1384                     var messageSender = createMessageSender();
1385                     final var isRecipientUpdate = false;
1386                     final var recipientIdList = new ArrayList<>(recipientIds);
1387                     final var addresses = recipientIdList.stream()
1388                             .map(this::resolveSignalServiceAddress)
1389                             .collect(Collectors.toList());
1390                     var result = messageSender.sendMessage(addresses,
1391                             unidentifiedAccessHelper.getAccessFor(recipientIdList),
1392                             isRecipientUpdate,
1393                             message);
1394
1395                     for (var r : result) {
1396                         if (r.getIdentityFailure() != null) {
1397                             final var recipientId = resolveRecipient(r.getAddress());
1398                             final var newIdentity = account.getIdentityKeyStore()
1399                                     .saveIdentity(recipientId, r.getIdentityFailure().getIdentityKey(), new Date());
1400                             if (newIdentity) {
1401                                 account.getSessionStore().archiveSessions(recipientId);
1402                             }
1403                         }
1404                     }
1405
1406                     return new Pair<>(timestamp, result);
1407                 } catch (UntrustedIdentityException e) {
1408                     return new Pair<>(timestamp, List.of());
1409                 }
1410             } else {
1411                 // Send to all individually, so sync messages are sent correctly
1412                 messageBuilder.withProfileKey(account.getProfileKey().serialize());
1413                 var results = new ArrayList<SendMessageResult>(recipientIds.size());
1414                 for (var recipientId : recipientIds) {
1415                     final var contact = account.getContactStore().getContact(recipientId);
1416                     final var expirationTime = contact != null ? contact.getMessageExpirationTime() : 0;
1417                     messageBuilder.withExpiration(expirationTime);
1418                     message = messageBuilder.build();
1419                     results.add(sendMessage(recipientId, message));
1420                 }
1421                 return new Pair<>(timestamp, results);
1422             }
1423         } finally {
1424             if (message != null && message.isEndSession()) {
1425                 for (var recipient : recipientIds) {
1426                     handleEndSession(recipient);
1427                 }
1428             }
1429         }
1430     }
1431
1432     private Pair<Long, SendMessageResult> sendSelfMessage(
1433             SignalServiceDataMessage.Builder messageBuilder
1434     ) throws IOException {
1435         final var timestamp = System.currentTimeMillis();
1436         messageBuilder.withTimestamp(timestamp);
1437         getOrCreateMessagePipe();
1438         getOrCreateUnidentifiedMessagePipe();
1439         final var recipientId = account.getSelfRecipientId();
1440
1441         final var contact = account.getContactStore().getContact(recipientId);
1442         final var expirationTime = contact != null ? contact.getMessageExpirationTime() : 0;
1443         messageBuilder.withExpiration(expirationTime);
1444
1445         var message = messageBuilder.build();
1446         final var result = sendSelfMessage(message);
1447         return new Pair<>(timestamp, result);
1448     }
1449
1450     private SendMessageResult sendSelfMessage(SignalServiceDataMessage message) throws IOException {
1451         var messageSender = createMessageSender();
1452
1453         var recipientId = account.getSelfRecipientId();
1454
1455         final var unidentifiedAccess = unidentifiedAccessHelper.getAccessFor(recipientId);
1456         var recipient = resolveSignalServiceAddress(recipientId);
1457         var transcript = new SentTranscriptMessage(Optional.of(recipient),
1458                 message.getTimestamp(),
1459                 message,
1460                 message.getExpiresInSeconds(),
1461                 Map.of(recipient, unidentifiedAccess.isPresent()),
1462                 false);
1463         var syncMessage = SignalServiceSyncMessage.forSentTranscript(transcript);
1464
1465         try {
1466             var startTime = System.currentTimeMillis();
1467             messageSender.sendMessage(syncMessage, unidentifiedAccess);
1468             return SendMessageResult.success(recipient,
1469                     unidentifiedAccess.isPresent(),
1470                     false,
1471                     System.currentTimeMillis() - startTime);
1472         } catch (UntrustedIdentityException e) {
1473             return SendMessageResult.identityFailure(recipient, e.getIdentityKey());
1474         }
1475     }
1476
1477     private SendMessageResult sendMessage(
1478             RecipientId recipientId, SignalServiceDataMessage message
1479     ) throws IOException {
1480         var messageSender = createMessageSender();
1481
1482         final var address = resolveSignalServiceAddress(recipientId);
1483         try {
1484             try {
1485                 return messageSender.sendMessage(address, unidentifiedAccessHelper.getAccessFor(recipientId), message);
1486             } catch (UnregisteredUserException e) {
1487                 final var newRecipientId = refreshRegisteredUser(recipientId);
1488                 return messageSender.sendMessage(resolveSignalServiceAddress(newRecipientId),
1489                         unidentifiedAccessHelper.getAccessFor(newRecipientId),
1490                         message);
1491             }
1492         } catch (UntrustedIdentityException e) {
1493             return SendMessageResult.identityFailure(address, e.getIdentityKey());
1494         }
1495     }
1496
1497     private SendMessageResult sendNullMessage(RecipientId recipientId) throws IOException {
1498         var messageSender = createMessageSender();
1499
1500         final var address = resolveSignalServiceAddress(recipientId);
1501         try {
1502             try {
1503                 return messageSender.sendNullMessage(address, unidentifiedAccessHelper.getAccessFor(recipientId));
1504             } catch (UnregisteredUserException e) {
1505                 final var newRecipientId = refreshRegisteredUser(recipientId);
1506                 final var newAddress = resolveSignalServiceAddress(newRecipientId);
1507                 return messageSender.sendNullMessage(newAddress, unidentifiedAccessHelper.getAccessFor(newRecipientId));
1508             }
1509         } catch (UntrustedIdentityException e) {
1510             return SendMessageResult.identityFailure(address, e.getIdentityKey());
1511         }
1512     }
1513
1514     private SignalServiceContent decryptMessage(SignalServiceEnvelope envelope) throws InvalidMetadataMessageException, ProtocolInvalidMessageException, ProtocolDuplicateMessageException, ProtocolLegacyMessageException, ProtocolInvalidKeyIdException, InvalidMetadataVersionException, ProtocolInvalidVersionException, ProtocolNoSessionException, ProtocolInvalidKeyException, SelfSendException, UnsupportedDataMessageException, org.whispersystems.libsignal.UntrustedIdentityException {
1515         var cipher = new SignalServiceCipher(account.getSelfAddress(),
1516                 account.getSignalProtocolStore(),
1517                 certificateValidator);
1518         try {
1519             return cipher.decrypt(envelope);
1520         } catch (ProtocolUntrustedIdentityException e) {
1521             if (e.getCause() instanceof org.whispersystems.libsignal.UntrustedIdentityException) {
1522                 throw (org.whispersystems.libsignal.UntrustedIdentityException) e.getCause();
1523             }
1524             throw new AssertionError(e);
1525         }
1526     }
1527
1528     private void handleEndSession(RecipientId recipientId) {
1529         account.getSessionStore().deleteAllSessions(recipientId);
1530     }
1531
1532     private List<HandleAction> handleSignalServiceDataMessage(
1533             SignalServiceDataMessage message,
1534             boolean isSync,
1535             SignalServiceAddress source,
1536             SignalServiceAddress destination,
1537             boolean ignoreAttachments
1538     ) {
1539         var actions = new ArrayList<HandleAction>();
1540         if (message.getGroupContext().isPresent()) {
1541             if (message.getGroupContext().get().getGroupV1().isPresent()) {
1542                 var groupInfo = message.getGroupContext().get().getGroupV1().get();
1543                 var groupId = GroupId.v1(groupInfo.getGroupId());
1544                 var group = getGroup(groupId);
1545                 if (group == null || group instanceof GroupInfoV1) {
1546                     var groupV1 = (GroupInfoV1) group;
1547                     switch (groupInfo.getType()) {
1548                         case UPDATE: {
1549                             if (groupV1 == null) {
1550                                 groupV1 = new GroupInfoV1(groupId);
1551                             }
1552
1553                             if (groupInfo.getAvatar().isPresent()) {
1554                                 var avatar = groupInfo.getAvatar().get();
1555                                 downloadGroupAvatar(avatar, groupV1.getGroupId());
1556                             }
1557
1558                             if (groupInfo.getName().isPresent()) {
1559                                 groupV1.name = groupInfo.getName().get();
1560                             }
1561
1562                             if (groupInfo.getMembers().isPresent()) {
1563                                 groupV1.addMembers(groupInfo.getMembers()
1564                                         .get()
1565                                         .stream()
1566                                         .map(this::resolveRecipient)
1567                                         .collect(Collectors.toSet()));
1568                             }
1569
1570                             account.getGroupStore().updateGroup(groupV1);
1571                             break;
1572                         }
1573                         case DELIVER:
1574                             if (groupV1 == null && !isSync) {
1575                                 actions.add(new SendGroupInfoRequestAction(source, groupId));
1576                             }
1577                             break;
1578                         case QUIT: {
1579                             if (groupV1 != null) {
1580                                 groupV1.removeMember(resolveRecipient(source));
1581                                 account.getGroupStore().updateGroup(groupV1);
1582                             }
1583                             break;
1584                         }
1585                         case REQUEST_INFO:
1586                             if (groupV1 != null && !isSync) {
1587                                 actions.add(new SendGroupInfoAction(source, groupV1.getGroupId()));
1588                             }
1589                             break;
1590                     }
1591                 } else {
1592                     // Received a group v1 message for a v2 group
1593                 }
1594             }
1595             if (message.getGroupContext().get().getGroupV2().isPresent()) {
1596                 final var groupContext = message.getGroupContext().get().getGroupV2().get();
1597                 final var groupMasterKey = groupContext.getMasterKey();
1598
1599                 getOrMigrateGroup(groupMasterKey,
1600                         groupContext.getRevision(),
1601                         groupContext.hasSignedGroupChange() ? groupContext.getSignedGroupChange() : null);
1602             }
1603         }
1604
1605         final var conversationPartnerAddress = isSync ? destination : source;
1606         if (conversationPartnerAddress != null && message.isEndSession()) {
1607             handleEndSession(resolveRecipient(conversationPartnerAddress));
1608         }
1609         if (message.isExpirationUpdate() || message.getBody().isPresent()) {
1610             if (message.getGroupContext().isPresent()) {
1611                 if (message.getGroupContext().get().getGroupV1().isPresent()) {
1612                     var groupInfo = message.getGroupContext().get().getGroupV1().get();
1613                     var group = account.getGroupStore().getOrCreateGroupV1(GroupId.v1(groupInfo.getGroupId()));
1614                     if (group != null) {
1615                         if (group.messageExpirationTime != message.getExpiresInSeconds()) {
1616                             group.messageExpirationTime = message.getExpiresInSeconds();
1617                             account.getGroupStore().updateGroup(group);
1618                         }
1619                     }
1620                 } else if (message.getGroupContext().get().getGroupV2().isPresent()) {
1621                     // disappearing message timer already stored in the DecryptedGroup
1622                 }
1623             } else if (conversationPartnerAddress != null) {
1624                 setExpirationTimer(resolveRecipient(conversationPartnerAddress), message.getExpiresInSeconds());
1625             }
1626         }
1627         if (!ignoreAttachments) {
1628             if (message.getAttachments().isPresent()) {
1629                 for (var attachment : message.getAttachments().get()) {
1630                     downloadAttachment(attachment);
1631                 }
1632             }
1633             if (message.getSharedContacts().isPresent()) {
1634                 for (var contact : message.getSharedContacts().get()) {
1635                     if (contact.getAvatar().isPresent()) {
1636                         downloadAttachment(contact.getAvatar().get().getAttachment());
1637                     }
1638                 }
1639             }
1640         }
1641         if (message.getProfileKey().isPresent() && message.getProfileKey().get().length == 32) {
1642             final ProfileKey profileKey;
1643             try {
1644                 profileKey = new ProfileKey(message.getProfileKey().get());
1645             } catch (InvalidInputException e) {
1646                 throw new AssertionError(e);
1647             }
1648             if (source.matches(account.getSelfAddress())) {
1649                 this.account.setProfileKey(profileKey);
1650             }
1651             this.account.getProfileStore().storeProfileKey(resolveRecipient(source), profileKey);
1652         }
1653         if (message.getPreviews().isPresent()) {
1654             final var previews = message.getPreviews().get();
1655             for (var preview : previews) {
1656                 if (preview.getImage().isPresent()) {
1657                     downloadAttachment(preview.getImage().get());
1658                 }
1659             }
1660         }
1661         if (message.getQuote().isPresent()) {
1662             final var quote = message.getQuote().get();
1663
1664             for (var quotedAttachment : quote.getAttachments()) {
1665                 final var thumbnail = quotedAttachment.getThumbnail();
1666                 if (thumbnail != null) {
1667                     downloadAttachment(thumbnail);
1668                 }
1669             }
1670         }
1671         if (message.getSticker().isPresent()) {
1672             final var messageSticker = message.getSticker().get();
1673             final var stickerPackId = StickerPackId.deserialize(messageSticker.getPackId());
1674             var sticker = account.getStickerStore().getSticker(stickerPackId);
1675             if (sticker == null) {
1676                 sticker = new Sticker(stickerPackId, messageSticker.getPackKey());
1677                 account.getStickerStore().updateSticker(sticker);
1678             }
1679         }
1680         return actions;
1681     }
1682
1683     private GroupInfoV2 getOrMigrateGroup(
1684             final GroupMasterKey groupMasterKey, final int revision, final byte[] signedGroupChange
1685     ) {
1686         final var groupSecretParams = GroupSecretParams.deriveFromMasterKey(groupMasterKey);
1687
1688         var groupId = GroupUtils.getGroupIdV2(groupSecretParams);
1689         var groupInfo = getGroup(groupId);
1690         final GroupInfoV2 groupInfoV2;
1691         if (groupInfo instanceof GroupInfoV1) {
1692             // Received a v2 group message for a v1 group, we need to locally migrate the group
1693             account.getGroupStore().deleteGroupV1(((GroupInfoV1) groupInfo).getGroupId());
1694             groupInfoV2 = new GroupInfoV2(groupId, groupMasterKey);
1695             logger.info("Locally migrated group {} to group v2, id: {}",
1696                     groupInfo.getGroupId().toBase64(),
1697                     groupInfoV2.getGroupId().toBase64());
1698         } else if (groupInfo instanceof GroupInfoV2) {
1699             groupInfoV2 = (GroupInfoV2) groupInfo;
1700         } else {
1701             groupInfoV2 = new GroupInfoV2(groupId, groupMasterKey);
1702         }
1703
1704         if (groupInfoV2.getGroup() == null || groupInfoV2.getGroup().getRevision() < revision) {
1705             DecryptedGroup group = null;
1706             if (signedGroupChange != null
1707                     && groupInfoV2.getGroup() != null
1708                     && groupInfoV2.getGroup().getRevision() + 1 == revision) {
1709                 group = groupHelper.getUpdatedDecryptedGroup(groupInfoV2.getGroup(), signedGroupChange, groupMasterKey);
1710             }
1711             if (group == null) {
1712                 group = groupHelper.getDecryptedGroup(groupSecretParams);
1713             }
1714             if (group != null) {
1715                 storeProfileKeysFromMembers(group);
1716                 final var avatar = group.getAvatar();
1717                 if (avatar != null && !avatar.isEmpty()) {
1718                     downloadGroupAvatar(groupId, groupSecretParams, avatar);
1719                 }
1720             }
1721             groupInfoV2.setGroup(group, this::resolveRecipient);
1722             account.getGroupStore().updateGroup(groupInfoV2);
1723         }
1724
1725         return groupInfoV2;
1726     }
1727
1728     private void storeProfileKeysFromMembers(final DecryptedGroup group) {
1729         for (var member : group.getMembersList()) {
1730             final var uuid = UuidUtil.parseOrThrow(member.getUuid().toByteArray());
1731             final var recipientId = account.getRecipientStore().resolveRecipient(uuid);
1732             try {
1733                 account.getProfileStore()
1734                         .storeProfileKey(recipientId, new ProfileKey(member.getProfileKey().toByteArray()));
1735             } catch (InvalidInputException ignored) {
1736             }
1737         }
1738     }
1739
1740     private void retryFailedReceivedMessages(ReceiveMessageHandler handler, boolean ignoreAttachments) {
1741         Set<HandleAction> queuedActions = new HashSet<>();
1742         for (var cachedMessage : account.getMessageCache().getCachedMessages()) {
1743             var actions = retryFailedReceivedMessage(handler, ignoreAttachments, cachedMessage);
1744             if (actions != null) {
1745                 queuedActions.addAll(actions);
1746             }
1747         }
1748         for (var action : queuedActions) {
1749             try {
1750                 action.execute(this);
1751             } catch (Throwable e) {
1752                 logger.warn("Message action failed.", e);
1753             }
1754         }
1755     }
1756
1757     private List<HandleAction> retryFailedReceivedMessage(
1758             final ReceiveMessageHandler handler, final boolean ignoreAttachments, final CachedMessage cachedMessage
1759     ) {
1760         var envelope = cachedMessage.loadEnvelope();
1761         if (envelope == null) {
1762             return null;
1763         }
1764         SignalServiceContent content = null;
1765         List<HandleAction> actions = null;
1766         if (!envelope.isReceipt()) {
1767             try {
1768                 content = decryptMessage(envelope);
1769             } catch (org.whispersystems.libsignal.UntrustedIdentityException e) {
1770                 if (!envelope.hasSource()) {
1771                     final var identifier = ((org.whispersystems.libsignal.UntrustedIdentityException) e).getName();
1772                     final var recipientId = resolveRecipient(identifier);
1773                     try {
1774                         account.getMessageCache().replaceSender(cachedMessage, recipientId);
1775                     } catch (IOException ioException) {
1776                         logger.warn("Failed to move cached message to recipient folder: {}", ioException.getMessage());
1777                     }
1778                 }
1779                 return null;
1780             } catch (Exception er) {
1781                 // All other errors are not recoverable, so delete the cached message
1782                 cachedMessage.delete();
1783                 return null;
1784             }
1785             actions = handleMessage(envelope, content, ignoreAttachments);
1786         }
1787         handler.handleMessage(envelope, content, null);
1788         cachedMessage.delete();
1789         return actions;
1790     }
1791
1792     public void receiveMessages(
1793             long timeout,
1794             TimeUnit unit,
1795             boolean returnOnTimeout,
1796             boolean ignoreAttachments,
1797             ReceiveMessageHandler handler
1798     ) throws IOException {
1799         retryFailedReceivedMessages(handler, ignoreAttachments);
1800
1801         Set<HandleAction> queuedActions = null;
1802
1803         final var messagePipe = getOrCreateMessagePipe();
1804
1805         var hasCaughtUpWithOldMessages = false;
1806
1807         while (true) {
1808             SignalServiceEnvelope envelope;
1809             SignalServiceContent content = null;
1810             Exception exception = null;
1811             final CachedMessage[] cachedMessage = {null};
1812             try {
1813                 var result = messagePipe.readOrEmpty(timeout, unit, envelope1 -> {
1814                     final var recipientId = envelope1.hasSource()
1815                             ? resolveRecipient(envelope1.getSourceIdentifier())
1816                             : null;
1817                     // store message on disk, before acknowledging receipt to the server
1818                     cachedMessage[0] = account.getMessageCache().cacheMessage(envelope1, recipientId);
1819                 });
1820                 if (result.isPresent()) {
1821                     envelope = result.get();
1822                 } else {
1823                     // Received indicator that server queue is empty
1824                     hasCaughtUpWithOldMessages = true;
1825
1826                     if (queuedActions != null) {
1827                         for (var action : queuedActions) {
1828                             try {
1829                                 action.execute(this);
1830                             } catch (Throwable e) {
1831                                 logger.warn("Message action failed.", e);
1832                             }
1833                         }
1834                         queuedActions.clear();
1835                         queuedActions = null;
1836                     }
1837
1838                     // Continue to wait another timeout for new messages
1839                     continue;
1840                 }
1841             } catch (TimeoutException e) {
1842                 if (returnOnTimeout) return;
1843                 continue;
1844             }
1845
1846             if (envelope.hasSource()) {
1847                 // Store uuid if we don't have it already
1848                 // address/uuid in envelope is sent by server
1849                 resolveRecipientTrusted(envelope.getSourceAddress());
1850             }
1851             final var notAGroupMember = isNotAGroupMember(envelope, content);
1852             if (!envelope.isReceipt()) {
1853                 try {
1854                     content = decryptMessage(envelope);
1855                 } catch (Exception e) {
1856                     exception = e;
1857                 }
1858                 if (!envelope.hasSource() && content != null) {
1859                     // Store uuid if we don't have it already
1860                     // address/uuid is validated by unidentified sender certificate
1861                     resolveRecipientTrusted(content.getSender());
1862                 }
1863                 var actions = handleMessage(envelope, content, ignoreAttachments);
1864                 if (exception instanceof ProtocolInvalidMessageException) {
1865                     final var sender = resolveRecipient(((ProtocolInvalidMessageException) exception).getSender());
1866                     logger.debug("Received invalid message, queuing renew session action.");
1867                     actions.add(new RenewSessionAction(sender));
1868                 }
1869                 if (hasCaughtUpWithOldMessages) {
1870                     for (var action : actions) {
1871                         try {
1872                             action.execute(this);
1873                         } catch (Throwable e) {
1874                             logger.warn("Message action failed.", e);
1875                         }
1876                     }
1877                 } else {
1878                     if (queuedActions == null) {
1879                         queuedActions = new HashSet<>();
1880                     }
1881                     queuedActions.addAll(actions);
1882                 }
1883             }
1884             if (isMessageBlocked(envelope, content)) {
1885                 logger.info("Ignoring a message from blocked user/group: {}", envelope.getTimestamp());
1886             } else if (notAGroupMember) {
1887                 logger.info("Ignoring a message from a non group member: {}", envelope.getTimestamp());
1888             } else {
1889                 handler.handleMessage(envelope, content, exception);
1890             }
1891             if (cachedMessage[0] != null) {
1892                 if (exception instanceof org.whispersystems.libsignal.UntrustedIdentityException) {
1893                     final var identifier = ((org.whispersystems.libsignal.UntrustedIdentityException) exception).getName();
1894                     final var recipientId = resolveRecipient(identifier);
1895                     queuedActions.add(new RetrieveProfileAction(recipientId));
1896                     if (!envelope.hasSource()) {
1897                         try {
1898                             cachedMessage[0] = account.getMessageCache().replaceSender(cachedMessage[0], recipientId);
1899                         } catch (IOException ioException) {
1900                             logger.warn("Failed to move cached message to recipient folder: {}",
1901                                     ioException.getMessage());
1902                         }
1903                     }
1904                 } else {
1905                     cachedMessage[0].delete();
1906                 }
1907             }
1908         }
1909     }
1910
1911     private boolean isMessageBlocked(
1912             SignalServiceEnvelope envelope, SignalServiceContent content
1913     ) {
1914         SignalServiceAddress source;
1915         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1916             source = envelope.getSourceAddress();
1917         } else if (content != null) {
1918             source = content.getSender();
1919         } else {
1920             return false;
1921         }
1922         final var recipientId = resolveRecipient(source);
1923         if (isContactBlocked(recipientId)) {
1924             return true;
1925         }
1926
1927         if (content != null && content.getDataMessage().isPresent()) {
1928             var message = content.getDataMessage().get();
1929             if (message.getGroupContext().isPresent()) {
1930                 var groupId = GroupUtils.getGroupId(message.getGroupContext().get());
1931                 var group = getGroup(groupId);
1932                 if (group != null && group.isBlocked()) {
1933                     return true;
1934                 }
1935             }
1936         }
1937         return false;
1938     }
1939
1940     public boolean isContactBlocked(final String identifier) throws InvalidNumberException {
1941         final var recipientId = canonicalizeAndResolveRecipient(identifier);
1942         return isContactBlocked(recipientId);
1943     }
1944
1945     private boolean isContactBlocked(final RecipientId recipientId) {
1946         var sourceContact = account.getContactStore().getContact(recipientId);
1947         return sourceContact != null && sourceContact.isBlocked();
1948     }
1949
1950     private boolean isNotAGroupMember(
1951             SignalServiceEnvelope envelope, SignalServiceContent content
1952     ) {
1953         SignalServiceAddress source;
1954         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1955             source = envelope.getSourceAddress();
1956         } else if (content != null) {
1957             source = content.getSender();
1958         } else {
1959             return false;
1960         }
1961
1962         if (content != null && content.getDataMessage().isPresent()) {
1963             var message = content.getDataMessage().get();
1964             if (message.getGroupContext().isPresent()) {
1965                 if (message.getGroupContext().get().getGroupV1().isPresent()) {
1966                     var groupInfo = message.getGroupContext().get().getGroupV1().get();
1967                     if (groupInfo.getType() == SignalServiceGroup.Type.QUIT) {
1968                         return false;
1969                     }
1970                 }
1971                 var groupId = GroupUtils.getGroupId(message.getGroupContext().get());
1972                 var group = getGroup(groupId);
1973                 if (group != null && !group.isMember(resolveRecipient(source))) {
1974                     return true;
1975                 }
1976             }
1977         }
1978         return false;
1979     }
1980
1981     private List<HandleAction> handleMessage(
1982             SignalServiceEnvelope envelope, SignalServiceContent content, boolean ignoreAttachments
1983     ) {
1984         var actions = new ArrayList<HandleAction>();
1985         if (content != null) {
1986             final SignalServiceAddress sender;
1987             if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1988                 sender = envelope.getSourceAddress();
1989             } else {
1990                 sender = content.getSender();
1991             }
1992
1993             if (content.getDataMessage().isPresent()) {
1994                 var message = content.getDataMessage().get();
1995
1996                 if (content.isNeedsReceipt()) {
1997                     actions.add(new SendReceiptAction(sender, message.getTimestamp()));
1998                 }
1999
2000                 actions.addAll(handleSignalServiceDataMessage(message,
2001                         false,
2002                         sender,
2003                         account.getSelfAddress(),
2004                         ignoreAttachments));
2005             }
2006             if (content.getSyncMessage().isPresent()) {
2007                 account.setMultiDevice(true);
2008                 var syncMessage = content.getSyncMessage().get();
2009                 if (syncMessage.getSent().isPresent()) {
2010                     var message = syncMessage.getSent().get();
2011                     final var destination = message.getDestination().orNull();
2012                     actions.addAll(handleSignalServiceDataMessage(message.getMessage(),
2013                             true,
2014                             sender,
2015                             destination,
2016                             ignoreAttachments));
2017                 }
2018                 if (syncMessage.getRequest().isPresent() && account.isMasterDevice()) {
2019                     var rm = syncMessage.getRequest().get();
2020                     if (rm.isContactsRequest()) {
2021                         actions.add(SendSyncContactsAction.create());
2022                     }
2023                     if (rm.isGroupsRequest()) {
2024                         actions.add(SendSyncGroupsAction.create());
2025                     }
2026                     if (rm.isBlockedListRequest()) {
2027                         actions.add(SendSyncBlockedListAction.create());
2028                     }
2029                     // TODO Handle rm.isConfigurationRequest(); rm.isKeysRequest();
2030                 }
2031                 if (syncMessage.getGroups().isPresent()) {
2032                     File tmpFile = null;
2033                     try {
2034                         tmpFile = IOUtils.createTempFile();
2035                         final var groupsMessage = syncMessage.getGroups().get();
2036                         try (var attachmentAsStream = retrieveAttachmentAsStream(groupsMessage.asPointer(), tmpFile)) {
2037                             var s = new DeviceGroupsInputStream(attachmentAsStream);
2038                             DeviceGroup g;
2039                             while ((g = s.read()) != null) {
2040                                 var syncGroup = account.getGroupStore().getOrCreateGroupV1(GroupId.v1(g.getId()));
2041                                 if (syncGroup != null) {
2042                                     if (g.getName().isPresent()) {
2043                                         syncGroup.name = g.getName().get();
2044                                     }
2045                                     syncGroup.addMembers(g.getMembers()
2046                                             .stream()
2047                                             .map(this::resolveRecipient)
2048                                             .collect(Collectors.toSet()));
2049                                     if (!g.isActive()) {
2050                                         syncGroup.removeMember(account.getSelfRecipientId());
2051                                     } else {
2052                                         // Add ourself to the member set as it's marked as active
2053                                         syncGroup.addMembers(List.of(account.getSelfRecipientId()));
2054                                     }
2055                                     syncGroup.blocked = g.isBlocked();
2056                                     if (g.getColor().isPresent()) {
2057                                         syncGroup.color = g.getColor().get();
2058                                     }
2059
2060                                     if (g.getAvatar().isPresent()) {
2061                                         downloadGroupAvatar(g.getAvatar().get(), syncGroup.getGroupId());
2062                                     }
2063                                     syncGroup.archived = g.isArchived();
2064                                     account.getGroupStore().updateGroup(syncGroup);
2065                                 }
2066                             }
2067                         }
2068                     } catch (Exception e) {
2069                         logger.warn("Failed to handle received sync groups “{}”, ignoring: {}",
2070                                 tmpFile,
2071                                 e.getMessage());
2072                     } finally {
2073                         if (tmpFile != null) {
2074                             try {
2075                                 Files.delete(tmpFile.toPath());
2076                             } catch (IOException e) {
2077                                 logger.warn("Failed to delete received groups temp file “{}”, ignoring: {}",
2078                                         tmpFile,
2079                                         e.getMessage());
2080                             }
2081                         }
2082                     }
2083                 }
2084                 if (syncMessage.getBlockedList().isPresent()) {
2085                     final var blockedListMessage = syncMessage.getBlockedList().get();
2086                     for (var address : blockedListMessage.getAddresses()) {
2087                         setContactBlocked(resolveRecipient(address), true);
2088                     }
2089                     for (var groupId : blockedListMessage.getGroupIds()
2090                             .stream()
2091                             .map(GroupId::unknownVersion)
2092                             .collect(Collectors.toSet())) {
2093                         try {
2094                             setGroupBlocked(groupId, true);
2095                         } catch (GroupNotFoundException e) {
2096                             logger.warn("BlockedListMessage contained groupID that was not found in GroupStore: {}",
2097                                     groupId.toBase64());
2098                         }
2099                     }
2100                 }
2101                 if (syncMessage.getContacts().isPresent()) {
2102                     File tmpFile = null;
2103                     try {
2104                         tmpFile = IOUtils.createTempFile();
2105                         final var contactsMessage = syncMessage.getContacts().get();
2106                         try (var attachmentAsStream = retrieveAttachmentAsStream(contactsMessage.getContactsStream()
2107                                 .asPointer(), tmpFile)) {
2108                             var s = new DeviceContactsInputStream(attachmentAsStream);
2109                             DeviceContact c;
2110                             while ((c = s.read()) != null) {
2111                                 if (c.getAddress().matches(account.getSelfAddress()) && c.getProfileKey().isPresent()) {
2112                                     account.setProfileKey(c.getProfileKey().get());
2113                                 }
2114                                 final var recipientId = resolveRecipientTrusted(c.getAddress());
2115                                 var contact = account.getContactStore().getContact(recipientId);
2116                                 final var builder = contact == null
2117                                         ? Contact.newBuilder()
2118                                         : Contact.newBuilder(contact);
2119                                 if (c.getName().isPresent()) {
2120                                     builder.withName(c.getName().get());
2121                                 }
2122                                 if (c.getColor().isPresent()) {
2123                                     builder.withColor(c.getColor().get());
2124                                 }
2125                                 if (c.getProfileKey().isPresent()) {
2126                                     account.getProfileStore().storeProfileKey(recipientId, c.getProfileKey().get());
2127                                 }
2128                                 if (c.getVerified().isPresent()) {
2129                                     final var verifiedMessage = c.getVerified().get();
2130                                     account.getIdentityKeyStore()
2131                                             .setIdentityTrustLevel(resolveRecipientTrusted(verifiedMessage.getDestination()),
2132                                                     verifiedMessage.getIdentityKey(),
2133                                                     TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
2134                                 }
2135                                 if (c.getExpirationTimer().isPresent()) {
2136                                     builder.withMessageExpirationTime(c.getExpirationTimer().get());
2137                                 }
2138                                 builder.withBlocked(c.isBlocked());
2139                                 builder.withArchived(c.isArchived());
2140                                 account.getContactStore().storeContact(recipientId, builder.build());
2141
2142                                 if (c.getAvatar().isPresent()) {
2143                                     downloadContactAvatar(c.getAvatar().get(), c.getAddress());
2144                                 }
2145                             }
2146                         }
2147                     } catch (Exception e) {
2148                         logger.warn("Failed to handle received sync contacts “{}”, ignoring: {}",
2149                                 tmpFile,
2150                                 e.getMessage());
2151                     } finally {
2152                         if (tmpFile != null) {
2153                             try {
2154                                 Files.delete(tmpFile.toPath());
2155                             } catch (IOException e) {
2156                                 logger.warn("Failed to delete received contacts temp file “{}”, ignoring: {}",
2157                                         tmpFile,
2158                                         e.getMessage());
2159                             }
2160                         }
2161                     }
2162                 }
2163                 if (syncMessage.getVerified().isPresent()) {
2164                     final var verifiedMessage = syncMessage.getVerified().get();
2165                     account.getIdentityKeyStore()
2166                             .setIdentityTrustLevel(resolveRecipientTrusted(verifiedMessage.getDestination()),
2167                                     verifiedMessage.getIdentityKey(),
2168                                     TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
2169                 }
2170                 if (syncMessage.getStickerPackOperations().isPresent()) {
2171                     final var stickerPackOperationMessages = syncMessage.getStickerPackOperations().get();
2172                     for (var m : stickerPackOperationMessages) {
2173                         if (!m.getPackId().isPresent()) {
2174                             continue;
2175                         }
2176                         final var stickerPackId = StickerPackId.deserialize(m.getPackId().get());
2177                         var sticker = account.getStickerStore().getSticker(stickerPackId);
2178                         if (sticker == null) {
2179                             if (!m.getPackKey().isPresent()) {
2180                                 continue;
2181                             }
2182                             sticker = new Sticker(stickerPackId, m.getPackKey().get());
2183                         }
2184                         sticker.setInstalled(!m.getType().isPresent()
2185                                 || m.getType().get() == StickerPackOperationMessage.Type.INSTALL);
2186                         account.getStickerStore().updateSticker(sticker);
2187                     }
2188                 }
2189                 if (syncMessage.getFetchType().isPresent()) {
2190                     switch (syncMessage.getFetchType().get()) {
2191                         case LOCAL_PROFILE:
2192                             getRecipientProfile(account.getSelfRecipientId(), true);
2193                         case STORAGE_MANIFEST:
2194                             // TODO
2195                     }
2196                 }
2197                 if (syncMessage.getKeys().isPresent()) {
2198                     final var keysMessage = syncMessage.getKeys().get();
2199                     if (keysMessage.getStorageService().isPresent()) {
2200                         final var storageKey = keysMessage.getStorageService().get();
2201                         account.setStorageKey(storageKey);
2202                     }
2203                 }
2204                 if (syncMessage.getConfiguration().isPresent()) {
2205                     // TODO
2206                 }
2207             }
2208         }
2209         return actions;
2210     }
2211
2212     private void downloadContactAvatar(SignalServiceAttachment avatar, SignalServiceAddress address) {
2213         try {
2214             avatarStore.storeContactAvatar(address, outputStream -> retrieveAttachment(avatar, outputStream));
2215         } catch (IOException e) {
2216             logger.warn("Failed to download avatar for contact {}, ignoring: {}", address, e.getMessage());
2217         }
2218     }
2219
2220     private void downloadGroupAvatar(SignalServiceAttachment avatar, GroupId groupId) {
2221         try {
2222             avatarStore.storeGroupAvatar(groupId, outputStream -> retrieveAttachment(avatar, outputStream));
2223         } catch (IOException e) {
2224             logger.warn("Failed to download avatar for group {}, ignoring: {}", groupId.toBase64(), e.getMessage());
2225         }
2226     }
2227
2228     private void downloadGroupAvatar(GroupId groupId, GroupSecretParams groupSecretParams, String cdnKey) {
2229         try {
2230             avatarStore.storeGroupAvatar(groupId,
2231                     outputStream -> retrieveGroupV2Avatar(groupSecretParams, cdnKey, outputStream));
2232         } catch (IOException e) {
2233             logger.warn("Failed to download avatar for group {}, ignoring: {}", groupId.toBase64(), e.getMessage());
2234         }
2235     }
2236
2237     private void downloadProfileAvatar(
2238             SignalServiceAddress address, String avatarPath, ProfileKey profileKey
2239     ) {
2240         try {
2241             avatarStore.storeProfileAvatar(address,
2242                     outputStream -> retrieveProfileAvatar(avatarPath, profileKey, outputStream));
2243         } catch (Throwable e) {
2244             logger.warn("Failed to download profile avatar, ignoring: {}", e.getMessage());
2245         }
2246     }
2247
2248     public File getAttachmentFile(SignalServiceAttachmentRemoteId attachmentId) {
2249         return attachmentStore.getAttachmentFile(attachmentId);
2250     }
2251
2252     private void downloadAttachment(final SignalServiceAttachment attachment) {
2253         if (!attachment.isPointer()) {
2254             logger.warn("Invalid state, can't store an attachment stream.");
2255         }
2256
2257         var pointer = attachment.asPointer();
2258         if (pointer.getPreview().isPresent()) {
2259             final var preview = pointer.getPreview().get();
2260             try {
2261                 attachmentStore.storeAttachmentPreview(pointer.getRemoteId(),
2262                         outputStream -> outputStream.write(preview, 0, preview.length));
2263             } catch (IOException e) {
2264                 logger.warn("Failed to download attachment preview, ignoring: {}", e.getMessage());
2265             }
2266         }
2267
2268         try {
2269             attachmentStore.storeAttachment(pointer.getRemoteId(),
2270                     outputStream -> retrieveAttachmentPointer(pointer, outputStream));
2271         } catch (IOException e) {
2272             logger.warn("Failed to download attachment ({}), ignoring: {}", pointer.getRemoteId(), e.getMessage());
2273         }
2274     }
2275
2276     private void retrieveGroupV2Avatar(
2277             GroupSecretParams groupSecretParams, String cdnKey, OutputStream outputStream
2278     ) throws IOException {
2279         var groupOperations = groupsV2Operations.forGroup(groupSecretParams);
2280
2281         var tmpFile = IOUtils.createTempFile();
2282         try (InputStream input = messageReceiver.retrieveGroupsV2ProfileAvatar(cdnKey,
2283                 tmpFile,
2284                 ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
2285             var encryptedData = IOUtils.readFully(input);
2286
2287             var decryptedData = groupOperations.decryptAvatar(encryptedData);
2288             outputStream.write(decryptedData);
2289         } finally {
2290             try {
2291                 Files.delete(tmpFile.toPath());
2292             } catch (IOException e) {
2293                 logger.warn("Failed to delete received group avatar temp file “{}”, ignoring: {}",
2294                         tmpFile,
2295                         e.getMessage());
2296             }
2297         }
2298     }
2299
2300     private void retrieveProfileAvatar(
2301             String avatarPath, ProfileKey profileKey, OutputStream outputStream
2302     ) throws IOException {
2303         var tmpFile = IOUtils.createTempFile();
2304         try (var input = messageReceiver.retrieveProfileAvatar(avatarPath,
2305                 tmpFile,
2306                 profileKey,
2307                 ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
2308             // Use larger buffer size to prevent AssertionError: Need: 12272 but only have: 8192 ...
2309             IOUtils.copyStream(input, outputStream, (int) ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE);
2310         } finally {
2311             try {
2312                 Files.delete(tmpFile.toPath());
2313             } catch (IOException e) {
2314                 logger.warn("Failed to delete received profile avatar temp file “{}”, ignoring: {}",
2315                         tmpFile,
2316                         e.getMessage());
2317             }
2318         }
2319     }
2320
2321     private void retrieveAttachment(
2322             final SignalServiceAttachment attachment, final OutputStream outputStream
2323     ) throws IOException {
2324         if (attachment.isPointer()) {
2325             var pointer = attachment.asPointer();
2326             retrieveAttachmentPointer(pointer, outputStream);
2327         } else {
2328             var stream = attachment.asStream();
2329             IOUtils.copyStream(stream.getInputStream(), outputStream);
2330         }
2331     }
2332
2333     private void retrieveAttachmentPointer(
2334             SignalServiceAttachmentPointer pointer, OutputStream outputStream
2335     ) throws IOException {
2336         var tmpFile = IOUtils.createTempFile();
2337         try (var input = retrieveAttachmentAsStream(pointer, tmpFile)) {
2338             IOUtils.copyStream(input, outputStream);
2339         } catch (MissingConfigurationException | InvalidMessageException e) {
2340             throw new IOException(e);
2341         } finally {
2342             try {
2343                 Files.delete(tmpFile.toPath());
2344             } catch (IOException e) {
2345                 logger.warn("Failed to delete received attachment temp file “{}”, ignoring: {}",
2346                         tmpFile,
2347                         e.getMessage());
2348             }
2349         }
2350     }
2351
2352     private InputStream retrieveAttachmentAsStream(
2353             SignalServiceAttachmentPointer pointer, File tmpFile
2354     ) throws IOException, InvalidMessageException, MissingConfigurationException {
2355         return messageReceiver.retrieveAttachment(pointer, tmpFile, ServiceConfig.MAX_ATTACHMENT_SIZE);
2356     }
2357
2358     void sendGroups() throws IOException, UntrustedIdentityException {
2359         var groupsFile = IOUtils.createTempFile();
2360
2361         try {
2362             try (OutputStream fos = new FileOutputStream(groupsFile)) {
2363                 var out = new DeviceGroupsOutputStream(fos);
2364                 for (var record : getGroups()) {
2365                     if (record instanceof GroupInfoV1) {
2366                         var groupInfo = (GroupInfoV1) record;
2367                         out.write(new DeviceGroup(groupInfo.getGroupId().serialize(),
2368                                 Optional.fromNullable(groupInfo.name),
2369                                 groupInfo.getMembers()
2370                                         .stream()
2371                                         .map(this::resolveSignalServiceAddress)
2372                                         .collect(Collectors.toList()),
2373                                 createGroupAvatarAttachment(groupInfo.getGroupId()),
2374                                 groupInfo.isMember(account.getSelfRecipientId()),
2375                                 Optional.of(groupInfo.messageExpirationTime),
2376                                 Optional.fromNullable(groupInfo.color),
2377                                 groupInfo.blocked,
2378                                 Optional.absent(),
2379                                 groupInfo.archived));
2380                     }
2381                 }
2382             }
2383
2384             if (groupsFile.exists() && groupsFile.length() > 0) {
2385                 try (var groupsFileStream = new FileInputStream(groupsFile)) {
2386                     var attachmentStream = SignalServiceAttachment.newStreamBuilder()
2387                             .withStream(groupsFileStream)
2388                             .withContentType("application/octet-stream")
2389                             .withLength(groupsFile.length())
2390                             .build();
2391
2392                     sendSyncMessage(SignalServiceSyncMessage.forGroups(attachmentStream));
2393                 }
2394             }
2395         } finally {
2396             try {
2397                 Files.delete(groupsFile.toPath());
2398             } catch (IOException e) {
2399                 logger.warn("Failed to delete groups temp file “{}”, ignoring: {}", groupsFile, e.getMessage());
2400             }
2401         }
2402     }
2403
2404     public void sendContacts() throws IOException, UntrustedIdentityException {
2405         var contactsFile = IOUtils.createTempFile();
2406
2407         try {
2408             try (OutputStream fos = new FileOutputStream(contactsFile)) {
2409                 var out = new DeviceContactsOutputStream(fos);
2410                 for (var contactPair : account.getContactStore().getContacts()) {
2411                     final var recipientId = contactPair.first();
2412                     final var contact = contactPair.second();
2413                     final var address = resolveSignalServiceAddress(recipientId);
2414
2415                     var currentIdentity = account.getIdentityKeyStore().getIdentity(recipientId);
2416                     VerifiedMessage verifiedMessage = null;
2417                     if (currentIdentity != null) {
2418                         verifiedMessage = new VerifiedMessage(address,
2419                                 currentIdentity.getIdentityKey(),
2420                                 currentIdentity.getTrustLevel().toVerifiedState(),
2421                                 currentIdentity.getDateAdded().getTime());
2422                     }
2423
2424                     var profileKey = account.getProfileStore().getProfileKey(recipientId);
2425                     out.write(new DeviceContact(address,
2426                             Optional.fromNullable(contact.getName()),
2427                             createContactAvatarAttachment(address),
2428                             Optional.fromNullable(contact.getColor()),
2429                             Optional.fromNullable(verifiedMessage),
2430                             Optional.fromNullable(profileKey),
2431                             contact.isBlocked(),
2432                             Optional.of(contact.getMessageExpirationTime()),
2433                             Optional.absent(),
2434                             contact.isArchived()));
2435                 }
2436
2437                 if (account.getProfileKey() != null) {
2438                     // Send our own profile key as well
2439                     out.write(new DeviceContact(account.getSelfAddress(),
2440                             Optional.absent(),
2441                             Optional.absent(),
2442                             Optional.absent(),
2443                             Optional.absent(),
2444                             Optional.of(account.getProfileKey()),
2445                             false,
2446                             Optional.absent(),
2447                             Optional.absent(),
2448                             false));
2449                 }
2450             }
2451
2452             if (contactsFile.exists() && contactsFile.length() > 0) {
2453                 try (var contactsFileStream = new FileInputStream(contactsFile)) {
2454                     var attachmentStream = SignalServiceAttachment.newStreamBuilder()
2455                             .withStream(contactsFileStream)
2456                             .withContentType("application/octet-stream")
2457                             .withLength(contactsFile.length())
2458                             .build();
2459
2460                     sendSyncMessage(SignalServiceSyncMessage.forContacts(new ContactsMessage(attachmentStream, true)));
2461                 }
2462             }
2463         } finally {
2464             try {
2465                 Files.delete(contactsFile.toPath());
2466             } catch (IOException e) {
2467                 logger.warn("Failed to delete contacts temp file “{}”, ignoring: {}", contactsFile, e.getMessage());
2468             }
2469         }
2470     }
2471
2472     void sendBlockedList() throws IOException, UntrustedIdentityException {
2473         var addresses = new ArrayList<SignalServiceAddress>();
2474         for (var record : account.getContactStore().getContacts()) {
2475             if (record.second().isBlocked()) {
2476                 addresses.add(resolveSignalServiceAddress(record.first()));
2477             }
2478         }
2479         var groupIds = new ArrayList<byte[]>();
2480         for (var record : getGroups()) {
2481             if (record.isBlocked()) {
2482                 groupIds.add(record.getGroupId().serialize());
2483             }
2484         }
2485         sendSyncMessage(SignalServiceSyncMessage.forBlocked(new BlockedListMessage(addresses, groupIds)));
2486     }
2487
2488     private void sendVerifiedMessage(
2489             SignalServiceAddress destination, IdentityKey identityKey, TrustLevel trustLevel
2490     ) throws IOException, UntrustedIdentityException {
2491         var verifiedMessage = new VerifiedMessage(destination,
2492                 identityKey,
2493                 trustLevel.toVerifiedState(),
2494                 System.currentTimeMillis());
2495         sendSyncMessage(SignalServiceSyncMessage.forVerified(verifiedMessage));
2496     }
2497
2498     public List<Pair<RecipientId, Contact>> getContacts() {
2499         return account.getContactStore().getContacts();
2500     }
2501
2502     public String getContactOrProfileName(String number) throws InvalidNumberException {
2503         final var recipientId = canonicalizeAndResolveRecipient(number);
2504         final var recipient = account.getRecipientStore().getRecipient(recipientId);
2505         if (recipient == null) {
2506             return null;
2507         }
2508
2509         if (recipient.getContact() != null && !Util.isEmpty(recipient.getContact().getName())) {
2510             return recipient.getContact().getName();
2511         }
2512
2513         if (recipient.getProfile() != null && recipient.getProfile() != null) {
2514             return recipient.getProfile().getDisplayName();
2515         }
2516
2517         return null;
2518     }
2519
2520     public GroupInfo getGroup(GroupId groupId) {
2521         final var group = account.getGroupStore().getGroup(groupId);
2522         if (group instanceof GroupInfoV2 && ((GroupInfoV2) group).getGroup() == null) {
2523             final var groupSecretParams = GroupSecretParams.deriveFromMasterKey(((GroupInfoV2) group).getMasterKey());
2524             ((GroupInfoV2) group).setGroup(groupHelper.getDecryptedGroup(groupSecretParams), this::resolveRecipient);
2525             account.getGroupStore().updateGroup(group);
2526         }
2527         return group;
2528     }
2529
2530     public List<IdentityInfo> getIdentities() {
2531         return account.getIdentityKeyStore().getIdentities();
2532     }
2533
2534     public List<IdentityInfo> getIdentities(String number) throws InvalidNumberException {
2535         final var identity = account.getIdentityKeyStore().getIdentity(canonicalizeAndResolveRecipient(number));
2536         return identity == null ? List.of() : List.of(identity);
2537     }
2538
2539     /**
2540      * Trust this the identity with this fingerprint
2541      *
2542      * @param name        username of the identity
2543      * @param fingerprint Fingerprint
2544      */
2545     public boolean trustIdentityVerified(String name, byte[] fingerprint) throws InvalidNumberException {
2546         var recipientId = canonicalizeAndResolveRecipient(name);
2547         return trustIdentity(recipientId,
2548                 identityKey -> Arrays.equals(identityKey.serialize(), fingerprint),
2549                 TrustLevel.TRUSTED_VERIFIED);
2550     }
2551
2552     /**
2553      * Trust this the identity with this safety number
2554      *
2555      * @param name         username of the identity
2556      * @param safetyNumber Safety number
2557      */
2558     public boolean trustIdentityVerifiedSafetyNumber(String name, String safetyNumber) throws InvalidNumberException {
2559         var recipientId = canonicalizeAndResolveRecipient(name);
2560         var address = account.getRecipientStore().resolveServiceAddress(recipientId);
2561         return trustIdentity(recipientId,
2562                 identityKey -> safetyNumber.equals(computeSafetyNumber(address, identityKey)),
2563                 TrustLevel.TRUSTED_VERIFIED);
2564     }
2565
2566     /**
2567      * Trust all keys of this identity without verification
2568      *
2569      * @param name username of the identity
2570      */
2571     public boolean trustIdentityAllKeys(String name) throws InvalidNumberException {
2572         var recipientId = canonicalizeAndResolveRecipient(name);
2573         return trustIdentity(recipientId, identityKey -> true, TrustLevel.TRUSTED_UNVERIFIED);
2574     }
2575
2576     private boolean trustIdentity(
2577             RecipientId recipientId, Function<IdentityKey, Boolean> verifier, TrustLevel trustLevel
2578     ) {
2579         var identity = account.getIdentityKeyStore().getIdentity(recipientId);
2580         if (identity == null) {
2581             return false;
2582         }
2583
2584         if (!verifier.apply(identity.getIdentityKey())) {
2585             return false;
2586         }
2587
2588         account.getIdentityKeyStore().setIdentityTrustLevel(recipientId, identity.getIdentityKey(), trustLevel);
2589         try {
2590             var address = account.getRecipientStore().resolveServiceAddress(recipientId);
2591             sendVerifiedMessage(address, identity.getIdentityKey(), trustLevel);
2592         } catch (IOException | UntrustedIdentityException e) {
2593             logger.warn("Failed to send verification sync message: {}", e.getMessage());
2594         }
2595
2596         return true;
2597     }
2598
2599     public String computeSafetyNumber(
2600             SignalServiceAddress theirAddress, IdentityKey theirIdentityKey
2601     ) {
2602         return Utils.computeSafetyNumber(ServiceConfig.capabilities.isUuid(),
2603                 account.getSelfAddress(),
2604                 getIdentityKeyPair().getPublicKey(),
2605                 theirAddress,
2606                 theirIdentityKey);
2607     }
2608
2609     @Deprecated
2610     public SignalServiceAddress resolveSignalServiceAddress(String identifier) {
2611         var address = Utils.getSignalServiceAddressFromIdentifier(identifier);
2612
2613         return resolveSignalServiceAddress(address);
2614     }
2615
2616     @Deprecated
2617     public SignalServiceAddress resolveSignalServiceAddress(SignalServiceAddress address) {
2618         if (address.matches(account.getSelfAddress())) {
2619             return account.getSelfAddress();
2620         }
2621
2622         return account.getRecipientStore().resolveServiceAddress(address);
2623     }
2624
2625     public SignalServiceAddress resolveSignalServiceAddress(RecipientId recipientId) {
2626         return account.getRecipientStore().resolveServiceAddress(recipientId);
2627     }
2628
2629     public RecipientId canonicalizeAndResolveRecipient(String identifier) throws InvalidNumberException {
2630         var canonicalizedNumber = UuidUtil.isUuid(identifier)
2631                 ? identifier
2632                 : PhoneNumberFormatter.formatNumber(identifier, account.getUsername());
2633
2634         return resolveRecipient(canonicalizedNumber);
2635     }
2636
2637     private RecipientId resolveRecipient(final String identifier) {
2638         var address = Utils.getSignalServiceAddressFromIdentifier(identifier);
2639
2640         return resolveRecipient(address);
2641     }
2642
2643     public RecipientId resolveRecipient(SignalServiceAddress address) {
2644         return account.getRecipientStore().resolveRecipient(address);
2645     }
2646
2647     private RecipientId resolveRecipientTrusted(SignalServiceAddress address) {
2648         return account.getRecipientStore().resolveRecipientTrusted(address);
2649     }
2650
2651     @Override
2652     public void close() throws IOException {
2653         close(true);
2654     }
2655
2656     void close(boolean closeAccount) throws IOException {
2657         executor.shutdown();
2658
2659         if (messagePipe != null) {
2660             messagePipe.shutdown();
2661             messagePipe = null;
2662         }
2663
2664         if (unidentifiedMessagePipe != null) {
2665             unidentifiedMessagePipe.shutdown();
2666             unidentifiedMessagePipe = null;
2667         }
2668
2669         if (closeAccount && account != null) {
2670             account.close();
2671         }
2672         account = null;
2673     }
2674
2675     public interface ReceiveMessageHandler {
2676
2677         void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent decryptedContent, Throwable e);
2678     }
2679 }