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