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

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