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.GroupIdV2;
  25 import org.asamk.signal.manager.groups.GroupInviteLinkUrl;
  26 import org.asamk.signal.manager.groups.GroupNotFoundException;
  27 import org.asamk.signal.manager.groups.GroupUtils;
  28 import org.asamk.signal.manager.groups.NotAGroupMemberException;
  29 import org.asamk.signal.manager.helper.GroupHelper;
  30 import org.asamk.signal.manager.helper.PinHelper;
  31 import org.asamk.signal.manager.helper.ProfileHelper;
  32 import org.asamk.signal.manager.helper.UnidentifiedAccessHelper;
  33 import org.asamk.signal.manager.storage.SignalAccount;
  34 import org.asamk.signal.manager.storage.contacts.ContactInfo;
  35 import org.asamk.signal.manager.storage.groups.GroupInfo;
  36 import org.asamk.signal.manager.storage.groups.GroupInfoV1;
  37 import org.asamk.signal.manager.storage.groups.GroupInfoV2;
  38 import org.asamk.signal.manager.storage.messageCache.CachedMessage;
  39 import org.asamk.signal.manager.storage.profiles.SignalProfile;
  40 import org.asamk.signal.manager.storage.profiles.SignalProfileEntry;
  41 import org.asamk.signal.manager.storage.protocol.IdentityInfo;
  42 import org.asamk.signal.manager.storage.stickers.Sticker;
  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.storageservice.protos.groups.local.DecryptedGroupJoinInfo;
  64 import org.signal.storageservice.protos.groups.local.DecryptedMember;
  65 import org.signal.zkgroup.InvalidInputException;
  66 import org.signal.zkgroup.VerificationFailedException;
  67 import org.signal.zkgroup.auth.AuthCredentialResponse;
  68 import org.signal.zkgroup.groups.GroupMasterKey;
  69 import org.signal.zkgroup.groups.GroupSecretParams;
  70 import org.signal.zkgroup.profiles.ClientZkProfileOperations;
  71 import org.signal.zkgroup.profiles.ProfileKey;
  72 import org.signal.zkgroup.profiles.ProfileKeyCredential;
  73 import org.slf4j.Logger;
  74 import org.slf4j.LoggerFactory;
  75 import org.whispersystems.libsignal.IdentityKey;
  76 import org.whispersystems.libsignal.IdentityKeyPair;
  77 import org.whispersystems.libsignal.InvalidKeyException;
  78 import org.whispersystems.libsignal.InvalidMessageException;
  79 import org.whispersystems.libsignal.InvalidVersionException;
  80 import org.whispersystems.libsignal.ecc.ECPublicKey;
  81 import org.whispersystems.libsignal.state.PreKeyRecord;
  82 import org.whispersystems.libsignal.state.SignedPreKeyRecord;
  83 import org.whispersystems.libsignal.util.Pair;
  84 import org.whispersystems.libsignal.util.guava.Optional;
  85 import org.whispersystems.signalservice.api.KeyBackupService;
  86 import org.whispersystems.signalservice.api.SignalServiceAccountManager;
  87 import org.whispersystems.signalservice.api.SignalServiceMessagePipe;
  88 import org.whispersystems.signalservice.api.SignalServiceMessageReceiver;
  89 import org.whispersystems.signalservice.api.SignalServiceMessageSender;
  90 import org.whispersystems.signalservice.api.crypto.SignalServiceCipher;
  91 import org.whispersystems.signalservice.api.crypto.UnidentifiedAccessPair;
  92 import org.whispersystems.signalservice.api.crypto.UntrustedIdentityException;
  93 import org.whispersystems.signalservice.api.groupsv2.ClientZkOperations;
  94 import org.whispersystems.signalservice.api.groupsv2.GroupLinkNotActiveException;
  95 import org.whispersystems.signalservice.api.groupsv2.GroupsV2Api;
  96 import org.whispersystems.signalservice.api.groupsv2.GroupsV2AuthorizationString;
  97 import org.whispersystems.signalservice.api.groupsv2.GroupsV2Operations;
  98 import org.whispersystems.signalservice.api.kbs.MasterKey;
  99 import org.whispersystems.signalservice.api.messages.SendMessageResult;
 100 import org.whispersystems.signalservice.api.messages.SignalServiceAttachment;
 101 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentPointer;
 102 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentRemoteId;
 103 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentStream;
 104 import org.whispersystems.signalservice.api.messages.SignalServiceContent;
 105 import org.whispersystems.signalservice.api.messages.SignalServiceDataMessage;
 106 import org.whispersystems.signalservice.api.messages.SignalServiceEnvelope;
 107 import org.whispersystems.signalservice.api.messages.SignalServiceGroup;
 108 import org.whispersystems.signalservice.api.messages.SignalServiceGroupV2;
 109 import org.whispersystems.signalservice.api.messages.SignalServiceReceiptMessage;
 110 import org.whispersystems.signalservice.api.messages.SignalServiceStickerManifestUpload;
 111 import org.whispersystems.signalservice.api.messages.multidevice.BlockedListMessage;
 112 import org.whispersystems.signalservice.api.messages.multidevice.ContactsMessage;
 113 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContact;
 114 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsInputStream;
 115 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsOutputStream;
 116 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroup;
 117 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsInputStream;
 118 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsOutputStream;
 119 import org.whispersystems.signalservice.api.messages.multidevice.DeviceInfo;
 120 import org.whispersystems.signalservice.api.messages.multidevice.KeysMessage;
 121 import org.whispersystems.signalservice.api.messages.multidevice.RequestMessage;
 122 import org.whispersystems.signalservice.api.messages.multidevice.SentTranscriptMessage;
 123 import org.whispersystems.signalservice.api.messages.multidevice.SignalServiceSyncMessage;
 124 import org.whispersystems.signalservice.api.messages.multidevice.StickerPackOperationMessage;
 125 import org.whispersystems.signalservice.api.messages.multidevice.VerifiedMessage;
 126 import org.whispersystems.signalservice.api.profiles.ProfileAndCredential;
 127 import org.whispersystems.signalservice.api.profiles.SignalServiceProfile;
 128 import org.whispersystems.signalservice.api.push.SignalServiceAddress;
 129 import org.whispersystems.signalservice.api.push.exceptions.MissingConfigurationException;
 130 import org.whispersystems.signalservice.api.storage.StorageKey;
 131 import org.whispersystems.signalservice.api.util.InvalidNumberException;
 132 import org.whispersystems.signalservice.api.util.PhoneNumberFormatter;
 133 import org.whispersystems.signalservice.api.util.SleepTimer;
 134 import org.whispersystems.signalservice.api.util.StreamDetails;
 135 import org.whispersystems.signalservice.api.util.UptimeSleepTimer;
 136 import org.whispersystems.signalservice.api.util.UuidUtil;
 137 import org.whispersystems.signalservice.internal.contacts.crypto.Quote;
 138 import org.whispersystems.signalservice.internal.contacts.crypto.UnauthenticatedQuoteException;
 139 import org.whispersystems.signalservice.internal.contacts.crypto.UnauthenticatedResponseException;
 140 import org.whispersystems.signalservice.internal.push.SignalServiceProtos;
 141 import org.whispersystems.signalservice.internal.push.UnsupportedDataMessageException;
 142 import org.whispersystems.signalservice.internal.util.DynamicCredentialsProvider;
 143 import org.whispersystems.signalservice.internal.util.Hex;
 144 import org.whispersystems.signalservice.internal.util.Util;
 145
 146 import java.io.Closeable;
 147 import java.io.File;
 148 import java.io.FileInputStream;
 149 import java.io.FileOutputStream;
 150 import java.io.IOException;
 151 import java.io.InputStream;
 152 import java.io.OutputStream;
 153 import java.net.URI;
 154 import java.net.URISyntaxException;
 155 import java.net.URLEncoder;
 156 import java.nio.charset.StandardCharsets;
 157 import java.nio.file.Files;
 158 import java.security.SignatureException;
 159 import java.util.ArrayList;
 160 import java.util.Arrays;
 161 import java.util.Collection;
 162 import java.util.Date;
 163 import java.util.HashMap;
 164 import java.util.HashSet;
 165 import java.util.List;
 166 import java.util.Map;
 167 import java.util.Set;
 168 import java.util.UUID;
 169 import java.util.concurrent.ExecutorService;
 170 import java.util.concurrent.Executors;
 171 import java.util.concurrent.TimeUnit;
 172 import java.util.concurrent.TimeoutException;
 173 import java.util.stream.Collectors;
 174
 175 import static org.asamk.signal.manager.config.ServiceConfig.capabilities;
 176
 177 public class Manager implements Closeable {
 178
 179     private final static Logger logger = LoggerFactory.getLogger(Manager.class);
 180
 181     private final CertificateValidator certificateValidator;
 182
 183     private final ServiceEnvironmentConfig serviceEnvironmentConfig;
 184     private final String userAgent;
 185
 186     private SignalAccount account;
 187     private final SignalServiceAccountManager accountManager;
 188     private final GroupsV2Api groupsV2Api;
 189     private final GroupsV2Operations groupsV2Operations;
 190     private final SignalServiceMessageReceiver messageReceiver;
 191     private final ClientZkProfileOperations clientZkProfileOperations;
 192
 193     private final ExecutorService executor = Executors.newCachedThreadPool();
 194
 195     private SignalServiceMessagePipe messagePipe = null;
 196     private SignalServiceMessagePipe unidentifiedMessagePipe = null;
 197
 198     private final UnidentifiedAccessHelper unidentifiedAccessHelper;
 199     private final ProfileHelper profileHelper;
 200     private final GroupHelper groupHelper;
 201     private final PinHelper pinHelper;
 202     private final AvatarStore avatarStore;
 203     private final AttachmentStore attachmentStore;
 204
 205     Manager(
 206             SignalAccount account,
 207             PathConfig pathConfig,
 208             ServiceEnvironmentConfig serviceEnvironmentConfig,
 209             String userAgent
 210     ) {
 211         this.account = account;
 212         this.serviceEnvironmentConfig = serviceEnvironmentConfig;
 213         this.certificateValidator = new CertificateValidator(serviceEnvironmentConfig.getUnidentifiedSenderTrustRoot());
 214         this.userAgent = userAgent;
 215         this.groupsV2Operations = capabilities.isGv2() ? new GroupsV2Operations(ClientZkOperations.create(
 216                 serviceEnvironmentConfig.getSignalServiceConfiguration())) : null;
 217         final SleepTimer timer = new UptimeSleepTimer();
 218         this.accountManager = new SignalServiceAccountManager(serviceEnvironmentConfig.getSignalServiceConfiguration(),
 219                 new DynamicCredentialsProvider(account.getUuid(),
 220                         account.getUsername(),
 221                         account.getPassword(),
 222                         account.getSignalingKey(),
 223                         account.getDeviceId()),
 224                 userAgent,
 225                 groupsV2Operations,
 226                 ServiceConfig.AUTOMATIC_NETWORK_RETRY,
 227                 timer);
 228         this.groupsV2Api = accountManager.getGroupsV2Api();
 229         final KeyBackupService keyBackupService = accountManager.getKeyBackupService(ServiceConfig.getIasKeyStore(),
 230                 serviceEnvironmentConfig.getKeyBackupConfig().getEnclaveName(),
 231                 serviceEnvironmentConfig.getKeyBackupConfig().getServiceId(),
 232                 serviceEnvironmentConfig.getKeyBackupConfig().getMrenclave(),
 233                 10);
 234
 235         this.pinHelper = new PinHelper(keyBackupService);
 236         this.clientZkProfileOperations = capabilities.isGv2()
 237                 ? ClientZkOperations.create(serviceEnvironmentConfig.getSignalServiceConfiguration())
 238                 .getProfileOperations()
 239                 : null;
 240         this.messageReceiver = new SignalServiceMessageReceiver(serviceEnvironmentConfig.getSignalServiceConfiguration(),
 241                 account.getUuid(),
 242                 account.getUsername(),
 243                 account.getPassword(),
 244                 account.getDeviceId(),
 245                 account.getSignalingKey(),
 246                 userAgent,
 247                 null,
 248                 timer,
 249                 clientZkProfileOperations,
 250                 ServiceConfig.AUTOMATIC_NETWORK_RETRY);
 251
 252         this.account.setResolver(this::resolveSignalServiceAddress);
 253
 254         this.unidentifiedAccessHelper = new UnidentifiedAccessHelper(account::getProfileKey,
 255                 account.getProfileStore()::getProfileKey,
 256                 this::getRecipientProfile,
 257                 this::getSenderCertificate);
 258         this.profileHelper = new ProfileHelper(account.getProfileStore()::getProfileKey,
 259                 unidentifiedAccessHelper::getAccessFor,
 260                 unidentified -> unidentified ? getOrCreateUnidentifiedMessagePipe() : getOrCreateMessagePipe(),
 261                 () -> messageReceiver);
 262         this.groupHelper = new GroupHelper(this::getRecipientProfileKeyCredential,
 263                 this::getRecipientProfile,
 264                 account::getSelfAddress,
 265                 groupsV2Operations,
 266                 groupsV2Api,
 267                 this::getGroupAuthForToday);
 268         this.avatarStore = new AvatarStore(pathConfig.getAvatarsPath());
 269         this.attachmentStore = new AttachmentStore(pathConfig.getAttachmentsPath());
 270     }
 271
 272     public String getUsername() {
 273         return account.getUsername();
 274     }
 275
 276     public SignalServiceAddress getSelfAddress() {
 277         return account.getSelfAddress();
 278     }
 279
 280     private IdentityKeyPair getIdentityKeyPair() {
 281         return account.getSignalProtocolStore().getIdentityKeyPair();
 282     }
 283
 284     public int getDeviceId() {
 285         return account.getDeviceId();
 286     }
 287
 288     public static Manager init(
 289             String username, File settingsPath, ServiceEnvironment serviceEnvironment, String userAgent
 290     ) throws IOException, NotRegisteredException {
 291         PathConfig pathConfig = PathConfig.createDefault(settingsPath);
 292
 293         if (!SignalAccount.userExists(pathConfig.getDataPath(), username)) {
 294             throw new NotRegisteredException();
 295         }
 296
 297         SignalAccount account = SignalAccount.load(pathConfig.getDataPath(), username);
 298
 299         if (!account.isRegistered()) {
 300             throw new NotRegisteredException();
 301         }
 302
 303         final ServiceEnvironmentConfig serviceEnvironmentConfig = ServiceConfig.getServiceEnvironmentConfig(
 304                 serviceEnvironment,
 305                 userAgent);
 306
 307         return new Manager(account, pathConfig, serviceEnvironmentConfig, userAgent);
 308     }
 309
 310     public static List<String> getAllLocalUsernames(File settingsPath) {
 311         PathConfig pathConfig = PathConfig.createDefault(settingsPath);
 312         final File dataPath = pathConfig.getDataPath();
 313         final File[] files = dataPath.listFiles();
 314
 315         if (files == null) {
 316             return List.of();
 317         }
 318
 319         return Arrays.stream(files)
 320                 .filter(File::isFile)
 321                 .map(File::getName)
 322                 .filter(file -> PhoneNumberFormatter.isValidNumber(file, null))
 323                 .collect(Collectors.toList());
 324     }
 325
 326     public void checkAccountState() throws IOException {
 327         if (accountManager.getPreKeysCount() < ServiceConfig.PREKEY_MINIMUM_COUNT) {
 328             refreshPreKeys();
 329             account.save();
 330         }
 331         if (account.getUuid() == null) {
 332             account.setUuid(accountManager.getOwnUuid());
 333             account.save();
 334         }
 335         updateAccountAttributes();
 336     }
 337
 338     /**
 339      * This is used for checking a set of phone numbers for registration on Signal
 340      *
 341      * @param numbers The set of phone number in question
 342      * @return A map of numbers to booleans. True if registered, false otherwise. Should never be null
 343      * @throws IOException if its unable to get the contacts to check if they're registered
 344      */
 345     public Map<String, Boolean> areUsersRegistered(Set<String> numbers) throws IOException {
 346         // Note "contactDetails" has no optionals. It only gives us info on users who are registered
 347         Map<String, UUID> contactDetails = getRegisteredUsers(numbers);
 348
 349         Set<String> registeredUsers = contactDetails.keySet();
 350
 351         return numbers.stream().collect(Collectors.toMap(x -> x, registeredUsers::contains));
 352     }
 353
 354     public void updateAccountAttributes() throws IOException {
 355         accountManager.setAccountAttributes(account.getSignalingKey(),
 356                 account.getSignalProtocolStore().getLocalRegistrationId(),
 357                 true,
 358                 // set legacy pin only if no KBS master key is set
 359                 account.getPinMasterKey() == null ? account.getRegistrationLockPin() : null,
 360                 account.getPinMasterKey() == null ? null : account.getPinMasterKey().deriveRegistrationLock(),
 361                 account.getSelfUnidentifiedAccessKey(),
 362                 account.isUnrestrictedUnidentifiedAccess(),
 363                 capabilities,
 364                 account.isDiscoverableByPhoneNumber());
 365     }
 366
 367     /**
 368      * @param name       if null, the previous name will be kept
 369      * @param about      if null, the previous about text will be kept
 370      * @param aboutEmoji if null, the previous about emoji will be kept
 371      * @param avatar     if avatar is null the image from the local avatar store is used (if present),
 372      *                   if it's Optional.absent(), the avatar will be removed
 373      */
 374     public void setProfile(String name, String about, String aboutEmoji, Optional<File> avatar) throws IOException {
 375         SignalProfileEntry profileEntry = account.getProfileStore().getProfileEntry(getSelfAddress());
 376         SignalProfile profile = profileEntry == null ? null : profileEntry.getProfile();
 377         SignalProfile newProfile = new SignalProfile(profile == null ? null : profile.getIdentityKey(),
 378                 name != null ? name : profile == null || profile.getName() == null ? "" : profile.getName(),
 379                 about != null ? about : profile == null || profile.getAbout() == null ? "" : profile.getAbout(),
 380                 aboutEmoji != null
 381                         ? aboutEmoji
 382                         : profile == null || profile.getAboutEmoji() == null ? "" : profile.getAboutEmoji(),
 383                 profile == null ? null : profile.getUnidentifiedAccess(),
 384                 account.isUnrestrictedUnidentifiedAccess(),
 385                 profile == null ? null : profile.getCapabilities());
 386
 387         try (final StreamDetails streamDetails = avatar == null
 388                 ? avatarStore.retrieveProfileAvatar(getSelfAddress())
 389                 : avatar.isPresent() ? Utils.createStreamDetailsFromFile(avatar.get()) : null) {
 390             accountManager.setVersionedProfile(account.getUuid(),
 391                     account.getProfileKey(),
 392                     newProfile.getName(),
 393                     newProfile.getAbout(),
 394                     newProfile.getAboutEmoji(),
 395                     streamDetails);
 396         }
 397
 398         if (avatar != null) {
 399             if (avatar.isPresent()) {
 400                 avatarStore.storeProfileAvatar(getSelfAddress(),
 401                         outputStream -> IOUtils.copyFileToStream(avatar.get(), outputStream));
 402             } else {
 403                 avatarStore.deleteProfileAvatar(getSelfAddress());
 404             }
 405         }
 406         account.getProfileStore()
 407                 .updateProfile(getSelfAddress(),
 408                         account.getProfileKey(),
 409                         System.currentTimeMillis(),
 410                         newProfile,
 411                         profileEntry == null ? null : profileEntry.getProfileKeyCredential());
 412
 413         try {
 414             sendSyncMessage(SignalServiceSyncMessage.forFetchLatest(SignalServiceSyncMessage.FetchType.LOCAL_PROFILE));
 415         } catch (UntrustedIdentityException ignored) {
 416         }
 417     }
 418
 419     public void unregister() throws IOException {
 420         // When setting an empty GCM id, the Signal-Server also sets the fetchesMessages property to false.
 421         // If this is the master device, other users can't send messages to this number anymore.
 422         // If this is a linked device, other users can still send messages, but this device doesn't receive them anymore.
 423         accountManager.setGcmId(Optional.absent());
 424         accountManager.deleteAccount();
 425
 426         account.setRegistered(false);
 427         account.save();
 428     }
 429
 430     public List<DeviceInfo> getLinkedDevices() throws IOException {
 431         List<DeviceInfo> devices = accountManager.getDevices();
 432         account.setMultiDevice(devices.size() > 1);
 433         account.save();
 434         return devices;
 435     }
 436
 437     public void removeLinkedDevices(int deviceId) throws IOException {
 438         accountManager.removeDevice(deviceId);
 439         List<DeviceInfo> devices = accountManager.getDevices();
 440         account.setMultiDevice(devices.size() > 1);
 441         account.save();
 442     }
 443
 444     public void addDeviceLink(URI linkUri) throws IOException, InvalidKeyException {
 445         DeviceLinkInfo info = DeviceLinkInfo.parseDeviceLinkUri(linkUri);
 446
 447         addDevice(info.deviceIdentifier, info.deviceKey);
 448     }
 449
 450     private void addDevice(String deviceIdentifier, ECPublicKey deviceKey) throws IOException, InvalidKeyException {
 451         IdentityKeyPair identityKeyPair = getIdentityKeyPair();
 452         String verificationCode = accountManager.getNewDeviceVerificationCode();
 453
 454         accountManager.addDevice(deviceIdentifier,
 455                 deviceKey,
 456                 identityKeyPair,
 457                 Optional.of(account.getProfileKey().serialize()),
 458                 verificationCode);
 459         account.setMultiDevice(true);
 460         account.save();
 461     }
 462
 463     public void setRegistrationLockPin(Optional<String> pin) throws IOException, UnauthenticatedResponseException {
 464         if (!account.isMasterDevice()) {
 465             throw new RuntimeException("Only master device can set a PIN");
 466         }
 467         if (pin.isPresent()) {
 468             final MasterKey masterKey = account.getPinMasterKey() != null
 469                     ? account.getPinMasterKey()
 470                     : KeyUtils.createMasterKey();
 471
 472             pinHelper.setRegistrationLockPin(pin.get(), masterKey);
 473
 474             account.setRegistrationLockPin(pin.get());
 475             account.setPinMasterKey(masterKey);
 476         } else {
 477             // Remove legacy registration lock
 478             accountManager.removeRegistrationLockV1();
 479
 480             // Remove KBS Pin
 481             pinHelper.removeRegistrationLockPin();
 482
 483             account.setRegistrationLockPin(null);
 484             account.setPinMasterKey(null);
 485         }
 486         account.save();
 487     }
 488
 489     void refreshPreKeys() throws IOException {
 490         List<PreKeyRecord> oneTimePreKeys = generatePreKeys();
 491         final IdentityKeyPair identityKeyPair = getIdentityKeyPair();
 492         SignedPreKeyRecord signedPreKeyRecord = generateSignedPreKey(identityKeyPair);
 493
 494         accountManager.setPreKeys(identityKeyPair.getPublicKey(), signedPreKeyRecord, oneTimePreKeys);
 495     }
 496
 497     private List<PreKeyRecord> generatePreKeys() {
 498         final int offset = account.getPreKeyIdOffset();
 499
 500         List<PreKeyRecord> records = KeyUtils.generatePreKeyRecords(offset, ServiceConfig.PREKEY_BATCH_SIZE);
 501         account.addPreKeys(records);
 502         account.save();
 503
 504         return records;
 505     }
 506
 507     private SignedPreKeyRecord generateSignedPreKey(IdentityKeyPair identityKeyPair) {
 508         final int signedPreKeyId = account.getNextSignedPreKeyId();
 509
 510         SignedPreKeyRecord record = KeyUtils.generateSignedPreKeyRecord(identityKeyPair, signedPreKeyId);
 511         account.addSignedPreKey(record);
 512         account.save();
 513
 514         return record;
 515     }
 516
 517     private SignalServiceMessagePipe getOrCreateMessagePipe() {
 518         if (messagePipe == null) {
 519             messagePipe = messageReceiver.createMessagePipe();
 520         }
 521         return messagePipe;
 522     }
 523
 524     private SignalServiceMessagePipe getOrCreateUnidentifiedMessagePipe() {
 525         if (unidentifiedMessagePipe == null) {
 526             unidentifiedMessagePipe = messageReceiver.createUnidentifiedMessagePipe();
 527         }
 528         return unidentifiedMessagePipe;
 529     }
 530
 531     private SignalServiceMessageSender createMessageSender() {
 532         return new SignalServiceMessageSender(serviceEnvironmentConfig.getSignalServiceConfiguration(),
 533                 account.getUuid(),
 534                 account.getUsername(),
 535                 account.getPassword(),
 536                 account.getDeviceId(),
 537                 account.getSignalProtocolStore(),
 538                 userAgent,
 539                 account.isMultiDevice(),
 540                 Optional.fromNullable(messagePipe),
 541                 Optional.fromNullable(unidentifiedMessagePipe),
 542                 Optional.absent(),
 543                 clientZkProfileOperations,
 544                 executor,
 545                 ServiceConfig.MAX_ENVELOPE_SIZE,
 546                 ServiceConfig.AUTOMATIC_NETWORK_RETRY);
 547     }
 548
 549     private SignalProfile getRecipientProfile(
 550             SignalServiceAddress address
 551     ) {
 552         return getRecipientProfile(address, false);
 553     }
 554
 555     private SignalProfile getRecipientProfile(
 556             SignalServiceAddress address, boolean force
 557     ) {
 558         SignalProfileEntry profileEntry = account.getProfileStore().getProfileEntry(address);
 559         if (profileEntry == null) {
 560             return null;
 561         }
 562         long now = new Date().getTime();
 563         // Profiles are cached for 24h before retrieving them again
 564         if (!profileEntry.isRequestPending() && (
 565                 force
 566                         || profileEntry.getProfile() == null
 567                         || now - profileEntry.getLastUpdateTimestamp() > 24 * 60 * 60 * 1000
 568         )) {
 569             profileEntry.setRequestPending(true);
 570             final SignalServiceProfile encryptedProfile;
 571             try {
 572                 encryptedProfile = profileHelper.retrieveProfileSync(address, SignalServiceProfile.RequestType.PROFILE)
 573                         .getProfile();
 574             } catch (IOException e) {
 575                 logger.warn("Failed to retrieve profile, ignoring: {}", e.getMessage());
 576                 return null;
 577             } finally {
 578                 profileEntry.setRequestPending(false);
 579             }
 580
 581             final ProfileKey profileKey = profileEntry.getProfileKey();
 582             final SignalProfile profile = decryptProfileAndDownloadAvatar(address, profileKey, encryptedProfile);
 583             account.getProfileStore()
 584                     .updateProfile(address, profileKey, now, profile, profileEntry.getProfileKeyCredential());
 585             return profile;
 586         }
 587         return profileEntry.getProfile();
 588     }
 589
 590     private ProfileKeyCredential getRecipientProfileKeyCredential(SignalServiceAddress address) {
 591         SignalProfileEntry profileEntry = account.getProfileStore().getProfileEntry(address);
 592         if (profileEntry == null) {
 593             return null;
 594         }
 595         if (profileEntry.getProfileKeyCredential() == null) {
 596             ProfileAndCredential profileAndCredential;
 597             try {
 598                 profileAndCredential = profileHelper.retrieveProfileSync(address,
 599                         SignalServiceProfile.RequestType.PROFILE_AND_CREDENTIAL);
 600             } catch (IOException e) {
 601                 logger.warn("Failed to retrieve profile key credential, ignoring: {}", e.getMessage());
 602                 return null;
 603             }
 604
 605             long now = new Date().getTime();
 606             final ProfileKeyCredential profileKeyCredential = profileAndCredential.getProfileKeyCredential().orNull();
 607             final SignalProfile profile = decryptProfileAndDownloadAvatar(address,
 608                     profileEntry.getProfileKey(),
 609                     profileAndCredential.getProfile());
 610             account.getProfileStore()
 611                     .updateProfile(address, profileEntry.getProfileKey(), now, profile, profileKeyCredential);
 612             return profileKeyCredential;
 613         }
 614         return profileEntry.getProfileKeyCredential();
 615     }
 616
 617     private SignalProfile decryptProfileAndDownloadAvatar(
 618             final SignalServiceAddress address, final ProfileKey profileKey, final SignalServiceProfile encryptedProfile
 619     ) {
 620         if (encryptedProfile.getAvatar() != null) {
 621             downloadProfileAvatar(address, encryptedProfile.getAvatar(), profileKey);
 622         }
 623
 624         return ProfileUtils.decryptProfile(profileKey, encryptedProfile);
 625     }
 626
 627     private Optional<SignalServiceAttachmentStream> createGroupAvatarAttachment(GroupId groupId) throws IOException {
 628         final StreamDetails streamDetails = avatarStore.retrieveGroupAvatar(groupId);
 629         if (streamDetails == null) {
 630             return Optional.absent();
 631         }
 632
 633         return Optional.of(AttachmentUtils.createAttachment(streamDetails, Optional.absent()));
 634     }
 635
 636     private Optional<SignalServiceAttachmentStream> createContactAvatarAttachment(SignalServiceAddress address) throws IOException {
 637         final StreamDetails streamDetails = avatarStore.retrieveContactAvatar(address);
 638         if (streamDetails == null) {
 639             return Optional.absent();
 640         }
 641
 642         return Optional.of(AttachmentUtils.createAttachment(streamDetails, Optional.absent()));
 643     }
 644
 645     private GroupInfo getGroupForSending(GroupId groupId) throws GroupNotFoundException, NotAGroupMemberException {
 646         GroupInfo g = getGroup(groupId);
 647         if (g == null) {
 648             throw new GroupNotFoundException(groupId);
 649         }
 650         if (!g.isMember(account.getSelfAddress())) {
 651             throw new NotAGroupMemberException(groupId, g.getTitle());
 652         }
 653         return g;
 654     }
 655
 656     private GroupInfo getGroupForUpdating(GroupId groupId) throws GroupNotFoundException, NotAGroupMemberException {
 657         GroupInfo g = getGroup(groupId);
 658         if (g == null) {
 659             throw new GroupNotFoundException(groupId);
 660         }
 661         if (!g.isMember(account.getSelfAddress()) && !g.isPendingMember(account.getSelfAddress())) {
 662             throw new NotAGroupMemberException(groupId, g.getTitle());
 663         }
 664         return g;
 665     }
 666
 667     public List<GroupInfo> getGroups() {
 668         return account.getGroupStore().getGroups();
 669     }
 670
 671     public Pair<Long, List<SendMessageResult>> sendGroupMessage(
 672             String messageText, List<String> attachments, GroupId groupId
 673     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 674         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 675                 .withBody(messageText);
 676         if (attachments != null) {
 677             messageBuilder.withAttachments(AttachmentUtils.getSignalServiceAttachments(attachments));
 678         }
 679
 680         return sendGroupMessage(messageBuilder, groupId);
 681     }
 682
 683     public Pair<Long, List<SendMessageResult>> sendGroupMessageReaction(
 684             String emoji, boolean remove, String targetAuthor, long targetSentTimestamp, GroupId groupId
 685     ) throws IOException, InvalidNumberException, NotAGroupMemberException, GroupNotFoundException {
 686         SignalServiceDataMessage.Reaction reaction = new SignalServiceDataMessage.Reaction(emoji,
 687                 remove,
 688                 canonicalizeAndResolveSignalServiceAddress(targetAuthor),
 689                 targetSentTimestamp);
 690         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 691                 .withReaction(reaction);
 692
 693         return sendGroupMessage(messageBuilder, groupId);
 694     }
 695
 696     public Pair<Long, List<SendMessageResult>> sendGroupMessage(
 697             SignalServiceDataMessage.Builder messageBuilder, GroupId groupId
 698     ) throws IOException, GroupNotFoundException, NotAGroupMemberException {
 699         final GroupInfo g = getGroupForSending(groupId);
 700
 701         GroupUtils.setGroupContext(messageBuilder, g);
 702         messageBuilder.withExpiration(g.getMessageExpirationTime());
 703
 704         return sendMessage(messageBuilder, g.getMembersWithout(account.getSelfAddress()));
 705     }
 706
 707     public Pair<Long, List<SendMessageResult>> sendQuitGroupMessage(GroupId groupId) throws GroupNotFoundException, IOException, NotAGroupMemberException {
 708         SignalServiceDataMessage.Builder messageBuilder;
 709
 710         final GroupInfo g = getGroupForUpdating(groupId);
 711         if (g instanceof GroupInfoV1) {
 712             GroupInfoV1 groupInfoV1 = (GroupInfoV1) g;
 713             SignalServiceGroup group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.QUIT)
 714                     .withId(groupId.serialize())
 715                     .build();
 716             messageBuilder = SignalServiceDataMessage.newBuilder().asGroupMessage(group);
 717             groupInfoV1.removeMember(account.getSelfAddress());
 718             account.getGroupStore().updateGroup(groupInfoV1);
 719         } else {
 720             final GroupInfoV2 groupInfoV2 = (GroupInfoV2) g;
 721             final Pair<DecryptedGroup, GroupChange> groupGroupChangePair = groupHelper.leaveGroup(groupInfoV2);
 722             groupInfoV2.setGroup(groupGroupChangePair.first());
 723             messageBuilder = getGroupUpdateMessageBuilder(groupInfoV2, groupGroupChangePair.second().toByteArray());
 724             account.getGroupStore().updateGroup(groupInfoV2);
 725         }
 726
 727         return sendMessage(messageBuilder, g.getMembersWithout(account.getSelfAddress()));
 728     }
 729
 730     public Pair<GroupId, List<SendMessageResult>> updateGroup(
 731             GroupId groupId, String name, List<String> members, File avatarFile
 732     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, InvalidNumberException, NotAGroupMemberException {
 733         return sendUpdateGroupMessage(groupId,
 734                 name,
 735                 members == null ? null : getSignalServiceAddresses(members),
 736                 avatarFile);
 737     }
 738
 739     private Pair<GroupId, List<SendMessageResult>> sendUpdateGroupMessage(
 740             GroupId groupId, String name, Collection<SignalServiceAddress> members, File avatarFile
 741     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 742         GroupInfo g;
 743         SignalServiceDataMessage.Builder messageBuilder;
 744         if (groupId == null) {
 745             // Create new group
 746             GroupInfoV2 gv2 = groupHelper.createGroupV2(name == null ? "" : name,
 747                     members == null ? List.of() : members,
 748                     avatarFile);
 749             if (gv2 == null) {
 750                 GroupInfoV1 gv1 = new GroupInfoV1(GroupIdV1.createRandom());
 751                 gv1.addMembers(List.of(account.getSelfAddress()));
 752                 updateGroupV1(gv1, name, members, avatarFile);
 753                 messageBuilder = getGroupUpdateMessageBuilder(gv1);
 754                 g = gv1;
 755             } else {
 756                 if (avatarFile != null) {
 757                     avatarStore.storeGroupAvatar(gv2.getGroupId(),
 758                             outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
 759                 }
 760                 messageBuilder = getGroupUpdateMessageBuilder(gv2, null);
 761                 g = gv2;
 762             }
 763         } else {
 764             GroupInfo group = getGroupForUpdating(groupId);
 765             if (group instanceof GroupInfoV2) {
 766                 final GroupInfoV2 groupInfoV2 = (GroupInfoV2) group;
 767
 768                 Pair<Long, List<SendMessageResult>> result = null;
 769                 if (groupInfoV2.isPendingMember(getSelfAddress())) {
 770                     Pair<DecryptedGroup, GroupChange> groupGroupChangePair = groupHelper.acceptInvite(groupInfoV2);
 771                     result = sendUpdateGroupMessage(groupInfoV2,
 772                             groupGroupChangePair.first(),
 773                             groupGroupChangePair.second());
 774                 }
 775
 776                 if (members != null) {
 777                     final Set<SignalServiceAddress> newMembers = new HashSet<>(members);
 778                     newMembers.removeAll(group.getMembers()
 779                             .stream()
 780                             .map(this::resolveSignalServiceAddress)
 781                             .collect(Collectors.toSet()));
 782                     if (newMembers.size() > 0) {
 783                         Pair<DecryptedGroup, GroupChange> groupGroupChangePair = groupHelper.updateGroupV2(groupInfoV2,
 784                                 newMembers);
 785                         result = sendUpdateGroupMessage(groupInfoV2,
 786                                 groupGroupChangePair.first(),
 787                                 groupGroupChangePair.second());
 788                     }
 789                 }
 790                 if (result == null || name != null || avatarFile != null) {
 791                     Pair<DecryptedGroup, GroupChange> groupGroupChangePair = groupHelper.updateGroupV2(groupInfoV2,
 792                             name,
 793                             avatarFile);
 794                     if (avatarFile != null) {
 795                         avatarStore.storeGroupAvatar(groupInfoV2.getGroupId(),
 796                                 outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
 797                     }
 798                     result = sendUpdateGroupMessage(groupInfoV2,
 799                             groupGroupChangePair.first(),
 800                             groupGroupChangePair.second());
 801                 }
 802
 803                 return new Pair<>(group.getGroupId(), result.second());
 804             } else {
 805                 GroupInfoV1 gv1 = (GroupInfoV1) group;
 806                 updateGroupV1(gv1, name, members, avatarFile);
 807                 messageBuilder = getGroupUpdateMessageBuilder(gv1);
 808                 g = gv1;
 809             }
 810         }
 811
 812         account.getGroupStore().updateGroup(g);
 813
 814         final Pair<Long, List<SendMessageResult>> result = sendMessage(messageBuilder,
 815                 g.getMembersIncludingPendingWithout(account.getSelfAddress()));
 816         return new Pair<>(g.getGroupId(), result.second());
 817     }
 818
 819     private void updateGroupV1(
 820             final GroupInfoV1 g,
 821             final String name,
 822             final Collection<SignalServiceAddress> members,
 823             final File avatarFile
 824     ) throws IOException {
 825         if (name != null) {
 826             g.name = name;
 827         }
 828
 829         if (members != null) {
 830             final Set<String> newE164Members = new HashSet<>();
 831             for (SignalServiceAddress member : members) {
 832                 if (g.isMember(member) || !member.getNumber().isPresent()) {
 833                     continue;
 834                 }
 835                 newE164Members.add(member.getNumber().get());
 836             }
 837
 838             final Map<String, UUID> registeredUsers = getRegisteredUsers(newE164Members);
 839             if (registeredUsers.size() != newE164Members.size()) {
 840                 // Some of the new members are not registered on Signal
 841                 newE164Members.removeAll(registeredUsers.keySet());
 842                 throw new IOException("Failed to add members "
 843                         + String.join(", ", newE164Members)
 844                         + " to group: Not registered on Signal");
 845             }
 846
 847             g.addMembers(members);
 848         }
 849
 850         if (avatarFile != null) {
 851             avatarStore.storeGroupAvatar(g.getGroupId(),
 852                     outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
 853         }
 854     }
 855
 856     public Pair<GroupId, List<SendMessageResult>> joinGroup(
 857             GroupInviteLinkUrl inviteLinkUrl
 858     ) throws IOException, GroupLinkNotActiveException {
 859         return sendJoinGroupMessage(inviteLinkUrl);
 860     }
 861
 862     private Pair<GroupId, List<SendMessageResult>> sendJoinGroupMessage(
 863             GroupInviteLinkUrl inviteLinkUrl
 864     ) throws IOException, GroupLinkNotActiveException {
 865         final DecryptedGroupJoinInfo groupJoinInfo = groupHelper.getDecryptedGroupJoinInfo(inviteLinkUrl.getGroupMasterKey(),
 866                 inviteLinkUrl.getPassword());
 867         final GroupChange groupChange = groupHelper.joinGroup(inviteLinkUrl.getGroupMasterKey(),
 868                 inviteLinkUrl.getPassword(),
 869                 groupJoinInfo);
 870         final GroupInfoV2 group = getOrMigrateGroup(inviteLinkUrl.getGroupMasterKey(),
 871                 groupJoinInfo.getRevision() + 1,
 872                 groupChange.toByteArray());
 873
 874         if (group.getGroup() == null) {
 875             // Only requested member, can't send update to group members
 876             return new Pair<>(group.getGroupId(), List.of());
 877         }
 878
 879         final Pair<Long, List<SendMessageResult>> result = sendUpdateGroupMessage(group, group.getGroup(), groupChange);
 880
 881         return new Pair<>(group.getGroupId(), result.second());
 882     }
 883
 884     private static int currentTimeDays() {
 885         return (int) TimeUnit.MILLISECONDS.toDays(System.currentTimeMillis());
 886     }
 887
 888     private GroupsV2AuthorizationString getGroupAuthForToday(
 889             final GroupSecretParams groupSecretParams
 890     ) throws IOException {
 891         final int today = currentTimeDays();
 892         // Returns credentials for the next 7 days
 893         final HashMap<Integer, AuthCredentialResponse> credentials = groupsV2Api.getCredentials(today);
 894         // TODO cache credentials until they expire
 895         AuthCredentialResponse authCredentialResponse = credentials.get(today);
 896         try {
 897             return groupsV2Api.getGroupsV2AuthorizationString(account.getUuid(),
 898                     today,
 899                     groupSecretParams,
 900                     authCredentialResponse);
 901         } catch (VerificationFailedException e) {
 902             throw new IOException(e);
 903         }
 904     }
 905
 906     private Pair<Long, List<SendMessageResult>> sendUpdateGroupMessage(
 907             GroupInfoV2 group, DecryptedGroup newDecryptedGroup, GroupChange groupChange
 908     ) throws IOException {
 909         group.setGroup(newDecryptedGroup);
 910         final SignalServiceDataMessage.Builder messageBuilder = getGroupUpdateMessageBuilder(group,
 911                 groupChange.toByteArray());
 912         account.getGroupStore().updateGroup(group);
 913         return sendMessage(messageBuilder, group.getMembersIncludingPendingWithout(account.getSelfAddress()));
 914     }
 915
 916     Pair<Long, List<SendMessageResult>> sendGroupInfoMessage(
 917             GroupIdV1 groupId, SignalServiceAddress recipient
 918     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, AttachmentInvalidException {
 919         GroupInfoV1 g;
 920         GroupInfo group = getGroupForSending(groupId);
 921         if (!(group instanceof GroupInfoV1)) {
 922             throw new RuntimeException("Received an invalid group request for a v2 group!");
 923         }
 924         g = (GroupInfoV1) group;
 925
 926         if (!g.isMember(recipient)) {
 927             throw new NotAGroupMemberException(groupId, g.name);
 928         }
 929
 930         SignalServiceDataMessage.Builder messageBuilder = getGroupUpdateMessageBuilder(g);
 931
 932         // Send group message only to the recipient who requested it
 933         return sendMessage(messageBuilder, List.of(recipient));
 934     }
 935
 936     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfoV1 g) throws AttachmentInvalidException {
 937         SignalServiceGroup.Builder group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.UPDATE)
 938                 .withId(g.getGroupId().serialize())
 939                 .withName(g.name)
 940                 .withMembers(new ArrayList<>(g.getMembers()));
 941
 942         try {
 943             final Optional<SignalServiceAttachmentStream> attachment = createGroupAvatarAttachment(g.getGroupId());
 944             if (attachment.isPresent()) {
 945                 group.withAvatar(attachment.get());
 946             }
 947         } catch (IOException e) {
 948             throw new AttachmentInvalidException(g.getGroupId().toBase64(), e);
 949         }
 950
 951         return SignalServiceDataMessage.newBuilder()
 952                 .asGroupMessage(group.build())
 953                 .withExpiration(g.getMessageExpirationTime());
 954     }
 955
 956     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfoV2 g, byte[] signedGroupChange) {
 957         SignalServiceGroupV2.Builder group = SignalServiceGroupV2.newBuilder(g.getMasterKey())
 958                 .withRevision(g.getGroup().getRevision())
 959                 .withSignedGroupChange(signedGroupChange);
 960         return SignalServiceDataMessage.newBuilder()
 961                 .asGroupMessage(group.build())
 962                 .withExpiration(g.getMessageExpirationTime());
 963     }
 964
 965     Pair<Long, List<SendMessageResult>> sendGroupInfoRequest(
 966             GroupIdV1 groupId, SignalServiceAddress recipient
 967     ) throws IOException {
 968         SignalServiceGroup.Builder group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.REQUEST_INFO)
 969                 .withId(groupId.serialize());
 970
 971         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 972                 .asGroupMessage(group.build());
 973
 974         // Send group info request message to the recipient who sent us a message with this groupId
 975         return sendMessage(messageBuilder, List.of(recipient));
 976     }
 977
 978     void sendReceipt(
 979             SignalServiceAddress remoteAddress, long messageId
 980     ) throws IOException, UntrustedIdentityException {
 981         SignalServiceReceiptMessage receiptMessage = new SignalServiceReceiptMessage(SignalServiceReceiptMessage.Type.DELIVERY,
 982                 List.of(messageId),
 983                 System.currentTimeMillis());
 984
 985         createMessageSender().sendReceipt(remoteAddress,
 986                 unidentifiedAccessHelper.getAccessFor(remoteAddress),
 987                 receiptMessage);
 988     }
 989
 990     public Pair<Long, List<SendMessageResult>> sendMessage(
 991             String messageText, List<String> attachments, List<String> recipients
 992     ) throws IOException, AttachmentInvalidException, InvalidNumberException {
 993         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 994                 .withBody(messageText);
 995         if (attachments != null) {
 996             List<SignalServiceAttachment> attachmentStreams = AttachmentUtils.getSignalServiceAttachments(attachments);
 997
 998             // Upload attachments here, so we only upload once even for multiple recipients
 999             SignalServiceMessageSender messageSender = createMessageSender();
1000             List<SignalServiceAttachment> attachmentPointers = new ArrayList<>(attachmentStreams.size());
1001             for (SignalServiceAttachment attachment : attachmentStreams) {
1002                 if (attachment.isStream()) {
1003                     attachmentPointers.add(messageSender.uploadAttachment(attachment.asStream()));
1004                 } else if (attachment.isPointer()) {
1005                     attachmentPointers.add(attachment.asPointer());
1006                 }
1007             }
1008
1009             messageBuilder.withAttachments(attachmentPointers);
1010         }
1011         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
1012     }
1013
1014     public Pair<Long, SendMessageResult> sendSelfMessage(
1015             String messageText, List<String> attachments
1016     ) throws IOException, AttachmentInvalidException {
1017         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
1018                 .withBody(messageText);
1019         if (attachments != null) {
1020             messageBuilder.withAttachments(AttachmentUtils.getSignalServiceAttachments(attachments));
1021         }
1022         return sendSelfMessage(messageBuilder);
1023     }
1024
1025     public Pair<Long, List<SendMessageResult>> sendMessageReaction(
1026             String emoji, boolean remove, String targetAuthor, long targetSentTimestamp, List<String> recipients
1027     ) throws IOException, InvalidNumberException {
1028         SignalServiceDataMessage.Reaction reaction = new SignalServiceDataMessage.Reaction(emoji,
1029                 remove,
1030                 canonicalizeAndResolveSignalServiceAddress(targetAuthor),
1031                 targetSentTimestamp);
1032         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
1033                 .withReaction(reaction);
1034         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
1035     }
1036
1037     public Pair<Long, List<SendMessageResult>> sendEndSessionMessage(List<String> recipients) throws IOException, InvalidNumberException {
1038         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder().asEndSessionMessage();
1039
1040         final Collection<SignalServiceAddress> signalServiceAddresses = getSignalServiceAddresses(recipients);
1041         try {
1042             return sendMessage(messageBuilder, signalServiceAddresses);
1043         } catch (Exception e) {
1044             for (SignalServiceAddress address : signalServiceAddresses) {
1045                 handleEndSession(address);
1046             }
1047             account.save();
1048             throw e;
1049         }
1050     }
1051
1052     public String getContactName(String number) throws InvalidNumberException {
1053         ContactInfo contact = account.getContactStore().getContact(canonicalizeAndResolveSignalServiceAddress(number));
1054         if (contact == null) {
1055             return "";
1056         } else {
1057             return contact.name;
1058         }
1059     }
1060
1061     public void setContactName(String number, String name) throws InvalidNumberException {
1062         final SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(number);
1063         ContactInfo contact = account.getContactStore().getContact(address);
1064         if (contact == null) {
1065             contact = new ContactInfo(address);
1066         }
1067         contact.name = name;
1068         account.getContactStore().updateContact(contact);
1069         account.save();
1070     }
1071
1072     public void setContactBlocked(String number, boolean blocked) throws InvalidNumberException {
1073         setContactBlocked(canonicalizeAndResolveSignalServiceAddress(number), blocked);
1074     }
1075
1076     private void setContactBlocked(SignalServiceAddress address, boolean blocked) {
1077         ContactInfo contact = account.getContactStore().getContact(address);
1078         if (contact == null) {
1079             contact = new ContactInfo(address);
1080         }
1081         contact.blocked = blocked;
1082         account.getContactStore().updateContact(contact);
1083         account.save();
1084     }
1085
1086     public void setGroupBlocked(final GroupId groupId, final boolean blocked) throws GroupNotFoundException {
1087         GroupInfo group = getGroup(groupId);
1088         if (group == null) {
1089             throw new GroupNotFoundException(groupId);
1090         }
1091
1092         group.setBlocked(blocked);
1093         account.getGroupStore().updateGroup(group);
1094         account.save();
1095     }
1096
1097     /**
1098      * Change the expiration timer for a contact
1099      */
1100     public void setExpirationTimer(SignalServiceAddress address, int messageExpirationTimer) throws IOException {
1101         ContactInfo contact = account.getContactStore().getContact(address);
1102         contact.messageExpirationTime = messageExpirationTimer;
1103         account.getContactStore().updateContact(contact);
1104         sendExpirationTimerUpdate(address);
1105         account.save();
1106     }
1107
1108     private void sendExpirationTimerUpdate(SignalServiceAddress address) throws IOException {
1109         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
1110                 .asExpirationUpdate();
1111         sendMessage(messageBuilder, List.of(address));
1112     }
1113
1114     /**
1115      * Change the expiration timer for a contact
1116      */
1117     public void setExpirationTimer(
1118             String number, int messageExpirationTimer
1119     ) throws IOException, InvalidNumberException {
1120         SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(number);
1121         setExpirationTimer(address, messageExpirationTimer);
1122     }
1123
1124     /**
1125      * Change the expiration timer for a group
1126      */
1127     public void setExpirationTimer(GroupId groupId, int messageExpirationTimer) {
1128         GroupInfo g = getGroup(groupId);
1129         if (g instanceof GroupInfoV1) {
1130             GroupInfoV1 groupInfoV1 = (GroupInfoV1) g;
1131             groupInfoV1.messageExpirationTime = messageExpirationTimer;
1132             account.getGroupStore().updateGroup(groupInfoV1);
1133         } else {
1134             throw new RuntimeException("TODO Not implemented!");
1135         }
1136     }
1137
1138     /**
1139      * Upload the sticker pack from path.
1140      *
1141      * @param path Path can be a path to a manifest.json file or to a zip file that contains a manifest.json file
1142      * @return if successful, returns the URL to install the sticker pack in the signal app
1143      */
1144     public String uploadStickerPack(File path) throws IOException, StickerPackInvalidException {
1145         SignalServiceStickerManifestUpload manifest = StickerUtils.getSignalServiceStickerManifestUpload(path);
1146
1147         SignalServiceMessageSender messageSender = createMessageSender();
1148
1149         byte[] packKey = KeyUtils.createStickerUploadKey();
1150         String packId = messageSender.uploadStickerManifest(manifest, packKey);
1151
1152         Sticker sticker = new Sticker(Hex.fromStringCondensed(packId), packKey);
1153         account.getStickerStore().updateSticker(sticker);
1154         account.save();
1155
1156         try {
1157             return new URI("https",
1158                     "signal.art",
1159                     "/addstickers/",
1160                     "pack_id=" + URLEncoder.encode(packId, StandardCharsets.UTF_8) + "&pack_key=" + URLEncoder.encode(
1161                             Hex.toStringCondensed(packKey),
1162                             StandardCharsets.UTF_8)).toString();
1163         } catch (URISyntaxException e) {
1164             throw new AssertionError(e);
1165         }
1166     }
1167
1168     void requestSyncGroups() throws IOException {
1169         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1170                 .setType(SignalServiceProtos.SyncMessage.Request.Type.GROUPS)
1171                 .build();
1172         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1173         try {
1174             sendSyncMessage(message);
1175         } catch (UntrustedIdentityException e) {
1176             throw new AssertionError(e);
1177         }
1178     }
1179
1180     void requestSyncContacts() throws IOException {
1181         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1182                 .setType(SignalServiceProtos.SyncMessage.Request.Type.CONTACTS)
1183                 .build();
1184         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1185         try {
1186             sendSyncMessage(message);
1187         } catch (UntrustedIdentityException e) {
1188             throw new AssertionError(e);
1189         }
1190     }
1191
1192     void requestSyncBlocked() throws IOException {
1193         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1194                 .setType(SignalServiceProtos.SyncMessage.Request.Type.BLOCKED)
1195                 .build();
1196         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1197         try {
1198             sendSyncMessage(message);
1199         } catch (UntrustedIdentityException e) {
1200             throw new AssertionError(e);
1201         }
1202     }
1203
1204     void requestSyncConfiguration() throws IOException {
1205         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1206                 .setType(SignalServiceProtos.SyncMessage.Request.Type.CONFIGURATION)
1207                 .build();
1208         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1209         try {
1210             sendSyncMessage(message);
1211         } catch (UntrustedIdentityException e) {
1212             throw new AssertionError(e);
1213         }
1214     }
1215
1216     void requestSyncKeys() throws IOException {
1217         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1218                 .setType(SignalServiceProtos.SyncMessage.Request.Type.KEYS)
1219                 .build();
1220         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1221         try {
1222             sendSyncMessage(message);
1223         } catch (UntrustedIdentityException e) {
1224             throw new AssertionError(e);
1225         }
1226     }
1227
1228     private byte[] getSenderCertificate() {
1229         // TODO support UUID capable sender certificates
1230         // byte[] certificate = accountManager.getSenderCertificateForPhoneNumberPrivacy();
1231         byte[] certificate;
1232         try {
1233             certificate = accountManager.getSenderCertificate();
1234         } catch (IOException e) {
1235             logger.warn("Failed to get sender certificate, ignoring: {}", e.getMessage());
1236             return null;
1237         }
1238         // TODO cache for a day
1239         return certificate;
1240     }
1241
1242     private void sendSyncMessage(SignalServiceSyncMessage message) throws IOException, UntrustedIdentityException {
1243         SignalServiceMessageSender messageSender = createMessageSender();
1244         try {
1245             messageSender.sendMessage(message, unidentifiedAccessHelper.getAccessForSync());
1246         } catch (UntrustedIdentityException e) {
1247             account.getSignalProtocolStore()
1248                     .saveIdentity(resolveSignalServiceAddress(e.getIdentifier()),
1249                             e.getIdentityKey(),
1250                             TrustLevel.UNTRUSTED);
1251             throw e;
1252         }
1253     }
1254
1255     private Collection<SignalServiceAddress> getSignalServiceAddresses(Collection<String> numbers) throws InvalidNumberException {
1256         final Set<SignalServiceAddress> signalServiceAddresses = new HashSet<>(numbers.size());
1257         final Set<SignalServiceAddress> addressesMissingUuid = new HashSet<>();
1258
1259         for (String number : numbers) {
1260             final SignalServiceAddress resolvedAddress = canonicalizeAndResolveSignalServiceAddress(number);
1261             if (resolvedAddress.getUuid().isPresent()) {
1262                 signalServiceAddresses.add(resolvedAddress);
1263             } else {
1264                 addressesMissingUuid.add(resolvedAddress);
1265             }
1266         }
1267
1268         final Set<String> numbersMissingUuid = addressesMissingUuid.stream()
1269                 .map(a -> a.getNumber().get())
1270                 .collect(Collectors.toSet());
1271         Map<String, UUID> registeredUsers;
1272         try {
1273             registeredUsers = getRegisteredUsers(numbersMissingUuid);
1274         } catch (IOException e) {
1275             logger.warn("Failed to resolve uuids from server, ignoring: {}", e.getMessage());
1276             registeredUsers = Map.of();
1277         }
1278
1279         for (SignalServiceAddress address : addressesMissingUuid) {
1280             final String number = address.getNumber().get();
1281             if (registeredUsers.containsKey(number)) {
1282                 final SignalServiceAddress newAddress = resolveSignalServiceAddress(new SignalServiceAddress(
1283                         registeredUsers.get(number),
1284                         number));
1285                 signalServiceAddresses.add(newAddress);
1286             } else {
1287                 signalServiceAddresses.add(address);
1288             }
1289         }
1290
1291         return signalServiceAddresses;
1292     }
1293
1294     private Map<String, UUID> getRegisteredUsers(final Set<String> numbersMissingUuid) throws IOException {
1295         try {
1296             return accountManager.getRegisteredUsers(ServiceConfig.getIasKeyStore(),
1297                     numbersMissingUuid,
1298                     serviceEnvironmentConfig.getCdsMrenclave());
1299         } catch (Quote.InvalidQuoteFormatException | UnauthenticatedQuoteException | SignatureException | UnauthenticatedResponseException | InvalidKeyException e) {
1300             throw new IOException(e);
1301         }
1302     }
1303
1304     private Pair<Long, List<SendMessageResult>> sendMessage(
1305             SignalServiceDataMessage.Builder messageBuilder, Collection<SignalServiceAddress> recipients
1306     ) throws IOException {
1307         recipients = recipients.stream().map(this::resolveSignalServiceAddress).collect(Collectors.toSet());
1308         final long timestamp = System.currentTimeMillis();
1309         messageBuilder.withTimestamp(timestamp);
1310         getOrCreateMessagePipe();
1311         getOrCreateUnidentifiedMessagePipe();
1312         SignalServiceDataMessage message = null;
1313         try {
1314             message = messageBuilder.build();
1315             if (message.getGroupContext().isPresent()) {
1316                 try {
1317                     SignalServiceMessageSender messageSender = createMessageSender();
1318                     final boolean isRecipientUpdate = false;
1319                     List<SendMessageResult> result = messageSender.sendMessage(new ArrayList<>(recipients),
1320                             unidentifiedAccessHelper.getAccessFor(recipients),
1321                             isRecipientUpdate,
1322                             message);
1323                     for (SendMessageResult r : result) {
1324                         if (r.getIdentityFailure() != null) {
1325                             account.getSignalProtocolStore()
1326                                     .saveIdentity(r.getAddress(),
1327                                             r.getIdentityFailure().getIdentityKey(),
1328                                             TrustLevel.UNTRUSTED);
1329                         }
1330                     }
1331                     return new Pair<>(timestamp, result);
1332                 } catch (UntrustedIdentityException e) {
1333                     account.getSignalProtocolStore()
1334                             .saveIdentity(resolveSignalServiceAddress(e.getIdentifier()),
1335                                     e.getIdentityKey(),
1336                                     TrustLevel.UNTRUSTED);
1337                     return new Pair<>(timestamp, List.of());
1338                 }
1339             } else {
1340                 // Send to all individually, so sync messages are sent correctly
1341                 messageBuilder.withProfileKey(account.getProfileKey().serialize());
1342                 List<SendMessageResult> results = new ArrayList<>(recipients.size());
1343                 for (SignalServiceAddress address : recipients) {
1344                     final ContactInfo contact = account.getContactStore().getContact(address);
1345                     final int expirationTime = contact != null ? contact.messageExpirationTime : 0;
1346                     messageBuilder.withExpiration(expirationTime);
1347                     message = messageBuilder.build();
1348                     results.add(sendMessage(address, message));
1349                 }
1350                 return new Pair<>(timestamp, results);
1351             }
1352         } finally {
1353             if (message != null && message.isEndSession()) {
1354                 for (SignalServiceAddress recipient : recipients) {
1355                     handleEndSession(recipient);
1356                 }
1357             }
1358             account.save();
1359         }
1360     }
1361
1362     private Pair<Long, SendMessageResult> sendSelfMessage(
1363             SignalServiceDataMessage.Builder messageBuilder
1364     ) throws IOException {
1365         final long timestamp = System.currentTimeMillis();
1366         messageBuilder.withTimestamp(timestamp);
1367         getOrCreateMessagePipe();
1368         getOrCreateUnidentifiedMessagePipe();
1369         try {
1370             final SignalServiceAddress address = getSelfAddress();
1371
1372             final ContactInfo contact = account.getContactStore().getContact(address);
1373             final int expirationTime = contact != null ? contact.messageExpirationTime : 0;
1374             messageBuilder.withExpiration(expirationTime);
1375
1376             SignalServiceDataMessage message = messageBuilder.build();
1377             final SendMessageResult result = sendSelfMessage(message);
1378             return new Pair<>(timestamp, result);
1379         } finally {
1380             account.save();
1381         }
1382     }
1383
1384     private SendMessageResult sendSelfMessage(SignalServiceDataMessage message) throws IOException {
1385         SignalServiceMessageSender messageSender = createMessageSender();
1386
1387         SignalServiceAddress recipient = account.getSelfAddress();
1388
1389         final Optional<UnidentifiedAccessPair> unidentifiedAccess = unidentifiedAccessHelper.getAccessFor(recipient);
1390         SentTranscriptMessage transcript = new SentTranscriptMessage(Optional.of(recipient),
1391                 message.getTimestamp(),
1392                 message,
1393                 message.getExpiresInSeconds(),
1394                 Map.of(recipient, unidentifiedAccess.isPresent()),
1395                 false);
1396         SignalServiceSyncMessage syncMessage = SignalServiceSyncMessage.forSentTranscript(transcript);
1397
1398         try {
1399             long startTime = System.currentTimeMillis();
1400             messageSender.sendMessage(syncMessage, unidentifiedAccess);
1401             return SendMessageResult.success(recipient,
1402                     unidentifiedAccess.isPresent(),
1403                     false,
1404                     System.currentTimeMillis() - startTime);
1405         } catch (UntrustedIdentityException e) {
1406             account.getSignalProtocolStore()
1407                     .saveIdentity(resolveSignalServiceAddress(e.getIdentifier()),
1408                             e.getIdentityKey(),
1409                             TrustLevel.UNTRUSTED);
1410             return SendMessageResult.identityFailure(recipient, e.getIdentityKey());
1411         }
1412     }
1413
1414     private SendMessageResult sendMessage(
1415             SignalServiceAddress address, SignalServiceDataMessage message
1416     ) throws IOException {
1417         SignalServiceMessageSender messageSender = createMessageSender();
1418
1419         try {
1420             return messageSender.sendMessage(address, unidentifiedAccessHelper.getAccessFor(address), message);
1421         } catch (UntrustedIdentityException e) {
1422             account.getSignalProtocolStore()
1423                     .saveIdentity(resolveSignalServiceAddress(e.getIdentifier()),
1424                             e.getIdentityKey(),
1425                             TrustLevel.UNTRUSTED);
1426             return SendMessageResult.identityFailure(address, e.getIdentityKey());
1427         }
1428     }
1429
1430     private SignalServiceContent decryptMessage(SignalServiceEnvelope envelope) throws InvalidMetadataMessageException, ProtocolInvalidMessageException, ProtocolDuplicateMessageException, ProtocolLegacyMessageException, ProtocolInvalidKeyIdException, InvalidMetadataVersionException, ProtocolInvalidVersionException, ProtocolNoSessionException, ProtocolInvalidKeyException, SelfSendException, UnsupportedDataMessageException, org.whispersystems.libsignal.UntrustedIdentityException {
1431         SignalServiceCipher cipher = new SignalServiceCipher(account.getSelfAddress(),
1432                 account.getSignalProtocolStore(),
1433                 certificateValidator);
1434         try {
1435             return cipher.decrypt(envelope);
1436         } catch (ProtocolUntrustedIdentityException e) {
1437             if (e.getCause() instanceof org.whispersystems.libsignal.UntrustedIdentityException) {
1438                 org.whispersystems.libsignal.UntrustedIdentityException identityException = (org.whispersystems.libsignal.UntrustedIdentityException) e
1439                         .getCause();
1440                 final IdentityKey untrustedIdentity = identityException.getUntrustedIdentity();
1441                 if (untrustedIdentity != null) {
1442                     account.getSignalProtocolStore()
1443                             .saveIdentity(resolveSignalServiceAddress(identityException.getName()),
1444                                     untrustedIdentity,
1445                                     TrustLevel.UNTRUSTED);
1446                 }
1447                 throw identityException;
1448             }
1449             throw new AssertionError(e);
1450         }
1451     }
1452
1453     private void handleEndSession(SignalServiceAddress source) {
1454         account.getSignalProtocolStore().deleteAllSessions(source);
1455     }
1456
1457     private List<HandleAction> handleSignalServiceDataMessage(
1458             SignalServiceDataMessage message,
1459             boolean isSync,
1460             SignalServiceAddress source,
1461             SignalServiceAddress destination,
1462             boolean ignoreAttachments
1463     ) {
1464         List<HandleAction> actions = new ArrayList<>();
1465         if (message.getGroupContext().isPresent()) {
1466             if (message.getGroupContext().get().getGroupV1().isPresent()) {
1467                 SignalServiceGroup groupInfo = message.getGroupContext().get().getGroupV1().get();
1468                 GroupIdV1 groupId = GroupId.v1(groupInfo.getGroupId());
1469                 GroupInfo group = getGroup(groupId);
1470                 if (group == null || group instanceof GroupInfoV1) {
1471                     GroupInfoV1 groupV1 = (GroupInfoV1) group;
1472                     switch (groupInfo.getType()) {
1473                         case UPDATE: {
1474                             if (groupV1 == null) {
1475                                 groupV1 = new GroupInfoV1(groupId);
1476                             }
1477
1478                             if (groupInfo.getAvatar().isPresent()) {
1479                                 SignalServiceAttachment avatar = groupInfo.getAvatar().get();
1480                                 downloadGroupAvatar(avatar, groupV1.getGroupId());
1481                             }
1482
1483                             if (groupInfo.getName().isPresent()) {
1484                                 groupV1.name = groupInfo.getName().get();
1485                             }
1486
1487                             if (groupInfo.getMembers().isPresent()) {
1488                                 groupV1.addMembers(groupInfo.getMembers()
1489                                         .get()
1490                                         .stream()
1491                                         .map(this::resolveSignalServiceAddress)
1492                                         .collect(Collectors.toSet()));
1493                             }
1494
1495                             account.getGroupStore().updateGroup(groupV1);
1496                             break;
1497                         }
1498                         case DELIVER:
1499                             if (groupV1 == null && !isSync) {
1500                                 actions.add(new SendGroupInfoRequestAction(source, groupId));
1501                             }
1502                             break;
1503                         case QUIT: {
1504                             if (groupV1 != null) {
1505                                 groupV1.removeMember(source);
1506                                 account.getGroupStore().updateGroup(groupV1);
1507                             }
1508                             break;
1509                         }
1510                         case REQUEST_INFO:
1511                             if (groupV1 != null && !isSync) {
1512                                 actions.add(new SendGroupInfoAction(source, groupV1.getGroupId()));
1513                             }
1514                             break;
1515                     }
1516                 } else {
1517                     // Received a group v1 message for a v2 group
1518                 }
1519             }
1520             if (message.getGroupContext().get().getGroupV2().isPresent()) {
1521                 final SignalServiceGroupV2 groupContext = message.getGroupContext().get().getGroupV2().get();
1522                 final GroupMasterKey groupMasterKey = groupContext.getMasterKey();
1523
1524                 getOrMigrateGroup(groupMasterKey,
1525                         groupContext.getRevision(),
1526                         groupContext.hasSignedGroupChange() ? groupContext.getSignedGroupChange() : null);
1527             }
1528         }
1529
1530         final SignalServiceAddress conversationPartnerAddress = isSync ? destination : source;
1531         if (conversationPartnerAddress != null && message.isEndSession()) {
1532             handleEndSession(conversationPartnerAddress);
1533         }
1534         if (message.isExpirationUpdate() || message.getBody().isPresent()) {
1535             if (message.getGroupContext().isPresent()) {
1536                 if (message.getGroupContext().get().getGroupV1().isPresent()) {
1537                     SignalServiceGroup groupInfo = message.getGroupContext().get().getGroupV1().get();
1538                     GroupInfoV1 group = account.getGroupStore().getOrCreateGroupV1(GroupId.v1(groupInfo.getGroupId()));
1539                     if (group != null) {
1540                         if (group.messageExpirationTime != message.getExpiresInSeconds()) {
1541                             group.messageExpirationTime = message.getExpiresInSeconds();
1542                             account.getGroupStore().updateGroup(group);
1543                         }
1544                     }
1545                 } else if (message.getGroupContext().get().getGroupV2().isPresent()) {
1546                     // disappearing message timer already stored in the DecryptedGroup
1547                 }
1548             } else if (conversationPartnerAddress != null) {
1549                 ContactInfo contact = account.getContactStore().getContact(conversationPartnerAddress);
1550                 if (contact == null) {
1551                     contact = new ContactInfo(conversationPartnerAddress);
1552                 }
1553                 if (contact.messageExpirationTime != message.getExpiresInSeconds()) {
1554                     contact.messageExpirationTime = message.getExpiresInSeconds();
1555                     account.getContactStore().updateContact(contact);
1556                 }
1557             }
1558         }
1559         if (message.getAttachments().isPresent() && !ignoreAttachments) {
1560             for (SignalServiceAttachment attachment : message.getAttachments().get()) {
1561                 downloadAttachment(attachment);
1562             }
1563         }
1564         if (message.getProfileKey().isPresent() && message.getProfileKey().get().length == 32) {
1565             final ProfileKey profileKey;
1566             try {
1567                 profileKey = new ProfileKey(message.getProfileKey().get());
1568             } catch (InvalidInputException e) {
1569                 throw new AssertionError(e);
1570             }
1571             if (source.matches(account.getSelfAddress())) {
1572                 this.account.setProfileKey(profileKey);
1573             }
1574             this.account.getProfileStore().storeProfileKey(source, profileKey);
1575         }
1576         if (message.getPreviews().isPresent()) {
1577             final List<SignalServiceDataMessage.Preview> previews = message.getPreviews().get();
1578             for (SignalServiceDataMessage.Preview preview : previews) {
1579                 if (preview.getImage().isPresent()) {
1580                     downloadAttachment(preview.getImage().get());
1581                 }
1582             }
1583         }
1584         if (message.getQuote().isPresent()) {
1585             final SignalServiceDataMessage.Quote quote = message.getQuote().get();
1586
1587             for (SignalServiceDataMessage.Quote.QuotedAttachment quotedAttachment : quote.getAttachments()) {
1588                 final SignalServiceAttachment thumbnail = quotedAttachment.getThumbnail();
1589                 if (thumbnail != null) {
1590                     downloadAttachment(thumbnail);
1591                 }
1592             }
1593         }
1594         if (message.getSticker().isPresent()) {
1595             final SignalServiceDataMessage.Sticker messageSticker = message.getSticker().get();
1596             Sticker sticker = account.getStickerStore().getSticker(messageSticker.getPackId());
1597             if (sticker == null) {
1598                 sticker = new Sticker(messageSticker.getPackId(), messageSticker.getPackKey());
1599                 account.getStickerStore().updateSticker(sticker);
1600             }
1601         }
1602         return actions;
1603     }
1604
1605     private GroupInfoV2 getOrMigrateGroup(
1606             final GroupMasterKey groupMasterKey, final int revision, final byte[] signedGroupChange
1607     ) {
1608         final GroupSecretParams groupSecretParams = GroupSecretParams.deriveFromMasterKey(groupMasterKey);
1609
1610         GroupIdV2 groupId = GroupUtils.getGroupIdV2(groupSecretParams);
1611         GroupInfo groupInfo = getGroup(groupId);
1612         final GroupInfoV2 groupInfoV2;
1613         if (groupInfo instanceof GroupInfoV1) {
1614             // Received a v2 group message for a v1 group, we need to locally migrate the group
1615             account.getGroupStore().deleteGroup(groupInfo.getGroupId());
1616             groupInfoV2 = new GroupInfoV2(groupId, groupMasterKey);
1617             logger.info("Locally migrated group {} to group v2, id: {}",
1618                     groupInfo.getGroupId().toBase64(),
1619                     groupInfoV2.getGroupId().toBase64());
1620         } else if (groupInfo instanceof GroupInfoV2) {
1621             groupInfoV2 = (GroupInfoV2) groupInfo;
1622         } else {
1623             groupInfoV2 = new GroupInfoV2(groupId, groupMasterKey);
1624         }
1625
1626         if (groupInfoV2.getGroup() == null || groupInfoV2.getGroup().getRevision() < revision) {
1627             DecryptedGroup group = null;
1628             if (signedGroupChange != null
1629                     && groupInfoV2.getGroup() != null
1630                     && groupInfoV2.getGroup().getRevision() + 1 == revision) {
1631                 group = groupHelper.getUpdatedDecryptedGroup(groupInfoV2.getGroup(), signedGroupChange, groupMasterKey);
1632             }
1633             if (group == null) {
1634                 group = groupHelper.getDecryptedGroup(groupSecretParams);
1635             }
1636             if (group != null) {
1637                 storeProfileKeysFromMembers(group);
1638                 final String avatar = group.getAvatar();
1639                 if (avatar != null && !avatar.isEmpty()) {
1640                     downloadGroupAvatar(groupId, groupSecretParams, avatar);
1641                 }
1642             }
1643             groupInfoV2.setGroup(group);
1644             account.getGroupStore().updateGroup(groupInfoV2);
1645         }
1646
1647         return groupInfoV2;
1648     }
1649
1650     private void storeProfileKeysFromMembers(final DecryptedGroup group) {
1651         for (DecryptedMember member : group.getMembersList()) {
1652             final SignalServiceAddress address = resolveSignalServiceAddress(new SignalServiceAddress(UuidUtil.parseOrThrow(
1653                     member.getUuid().toByteArray()), null));
1654             try {
1655                 account.getProfileStore()
1656                         .storeProfileKey(address, new ProfileKey(member.getProfileKey().toByteArray()));
1657             } catch (InvalidInputException ignored) {
1658             }
1659         }
1660     }
1661
1662     private void retryFailedReceivedMessages(ReceiveMessageHandler handler, boolean ignoreAttachments) {
1663         for (CachedMessage cachedMessage : account.getMessageCache().getCachedMessages()) {
1664             retryFailedReceivedMessage(handler, ignoreAttachments, cachedMessage);
1665         }
1666     }
1667
1668     private void retryFailedReceivedMessage(
1669             final ReceiveMessageHandler handler, final boolean ignoreAttachments, final CachedMessage cachedMessage
1670     ) {
1671         SignalServiceEnvelope envelope = cachedMessage.loadEnvelope();
1672         if (envelope == null) {
1673             return;
1674         }
1675         SignalServiceContent content = null;
1676         if (!envelope.isReceipt()) {
1677             try {
1678                 content = decryptMessage(envelope);
1679             } catch (org.whispersystems.libsignal.UntrustedIdentityException e) {
1680                 return;
1681             } catch (Exception er) {
1682                 // All other errors are not recoverable, so delete the cached message
1683                 cachedMessage.delete();
1684                 return;
1685             }
1686             List<HandleAction> actions = handleMessage(envelope, content, ignoreAttachments);
1687             for (HandleAction action : actions) {
1688                 try {
1689                     action.execute(this);
1690                 } catch (Throwable e) {
1691                     logger.warn("Message action failed.", e);
1692                 }
1693             }
1694         }
1695         account.save();
1696         handler.handleMessage(envelope, content, null);
1697         cachedMessage.delete();
1698     }
1699
1700     public void receiveMessages(
1701             long timeout,
1702             TimeUnit unit,
1703             boolean returnOnTimeout,
1704             boolean ignoreAttachments,
1705             ReceiveMessageHandler handler
1706     ) throws IOException {
1707         retryFailedReceivedMessages(handler, ignoreAttachments);
1708
1709         Set<HandleAction> queuedActions = null;
1710
1711         final SignalServiceMessagePipe messagePipe = getOrCreateMessagePipe();
1712
1713         boolean hasCaughtUpWithOldMessages = false;
1714
1715         while (true) {
1716             SignalServiceEnvelope envelope;
1717             SignalServiceContent content = null;
1718             Exception exception = null;
1719             final CachedMessage[] cachedMessage = {null};
1720             try {
1721                 Optional<SignalServiceEnvelope> result = messagePipe.readOrEmpty(timeout, unit, envelope1 -> {
1722                     // store message on disk, before acknowledging receipt to the server
1723                     cachedMessage[0] = account.getMessageCache().cacheMessage(envelope1);
1724                 });
1725                 if (result.isPresent()) {
1726                     envelope = result.get();
1727                 } else {
1728                     // Received indicator that server queue is empty
1729                     hasCaughtUpWithOldMessages = true;
1730
1731                     if (queuedActions != null) {
1732                         for (HandleAction action : queuedActions) {
1733                             try {
1734                                 action.execute(this);
1735                             } catch (Throwable e) {
1736                                 logger.warn("Message action failed.", e);
1737                             }
1738                         }
1739                         account.save();
1740                         queuedActions.clear();
1741                         queuedActions = null;
1742                     }
1743
1744                     // Continue to wait another timeout for new messages
1745                     continue;
1746                 }
1747             } catch (TimeoutException e) {
1748                 if (returnOnTimeout) return;
1749                 continue;
1750             } catch (InvalidVersionException e) {
1751                 logger.warn("Error while receiving messages, ignoring: {}", e.getMessage());
1752                 continue;
1753             }
1754
1755             if (envelope.hasSource()) {
1756                 // Store uuid if we don't have it already
1757                 SignalServiceAddress source = envelope.getSourceAddress();
1758                 resolveSignalServiceAddress(source);
1759             }
1760             if (!envelope.isReceipt()) {
1761                 try {
1762                     content = decryptMessage(envelope);
1763                 } catch (Exception e) {
1764                     exception = e;
1765                 }
1766                 List<HandleAction> actions = handleMessage(envelope, content, ignoreAttachments);
1767                 if (hasCaughtUpWithOldMessages) {
1768                     for (HandleAction action : actions) {
1769                         try {
1770                             action.execute(this);
1771                         } catch (Throwable e) {
1772                             logger.warn("Message action failed.", e);
1773                         }
1774                     }
1775                 } else {
1776                     if (queuedActions == null) {
1777                         queuedActions = new HashSet<>();
1778                     }
1779                     queuedActions.addAll(actions);
1780                 }
1781             }
1782             account.save();
1783             if (isMessageBlocked(envelope, content)) {
1784                 logger.info("Ignoring a message from blocked user/group: {}", envelope.getTimestamp());
1785             } else if (isNotAGroupMember(envelope, content)) {
1786                 logger.info("Ignoring a message from a non group member: {}", envelope.getTimestamp());
1787             } else {
1788                 handler.handleMessage(envelope, content, exception);
1789             }
1790             if (!(exception instanceof org.whispersystems.libsignal.UntrustedIdentityException)) {
1791                 if (cachedMessage[0] != null) {
1792                     cachedMessage[0].delete();
1793                 }
1794             }
1795         }
1796     }
1797
1798     private boolean isMessageBlocked(
1799             SignalServiceEnvelope envelope, SignalServiceContent content
1800     ) {
1801         SignalServiceAddress source;
1802         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1803             source = envelope.getSourceAddress();
1804         } else if (content != null) {
1805             source = content.getSender();
1806         } else {
1807             return false;
1808         }
1809         ContactInfo sourceContact = account.getContactStore().getContact(source);
1810         if (sourceContact != null && sourceContact.blocked) {
1811             return true;
1812         }
1813
1814         if (content != null && content.getDataMessage().isPresent()) {
1815             SignalServiceDataMessage message = content.getDataMessage().get();
1816             if (message.getGroupContext().isPresent()) {
1817                 GroupId groupId = GroupUtils.getGroupId(message.getGroupContext().get());
1818                 GroupInfo group = getGroup(groupId);
1819                 if (group != null && group.isBlocked()) {
1820                     return true;
1821                 }
1822             }
1823         }
1824         return false;
1825     }
1826
1827     private boolean isNotAGroupMember(
1828             SignalServiceEnvelope envelope, SignalServiceContent content
1829     ) {
1830         SignalServiceAddress source;
1831         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1832             source = envelope.getSourceAddress();
1833         } else if (content != null) {
1834             source = content.getSender();
1835         } else {
1836             return false;
1837         }
1838
1839         if (content != null && content.getDataMessage().isPresent()) {
1840             SignalServiceDataMessage message = content.getDataMessage().get();
1841             if (message.getGroupContext().isPresent()) {
1842                 if (message.getGroupContext().get().getGroupV1().isPresent()) {
1843                     SignalServiceGroup groupInfo = message.getGroupContext().get().getGroupV1().get();
1844                     if (groupInfo.getType() == SignalServiceGroup.Type.QUIT) {
1845                         return false;
1846                     }
1847                 }
1848                 GroupId groupId = GroupUtils.getGroupId(message.getGroupContext().get());
1849                 GroupInfo group = getGroup(groupId);
1850                 if (group != null && !group.isMember(source)) {
1851                     return true;
1852                 }
1853             }
1854         }
1855         return false;
1856     }
1857
1858     private List<HandleAction> handleMessage(
1859             SignalServiceEnvelope envelope, SignalServiceContent content, boolean ignoreAttachments
1860     ) {
1861         List<HandleAction> actions = new ArrayList<>();
1862         if (content != null) {
1863             final SignalServiceAddress sender;
1864             if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1865                 sender = envelope.getSourceAddress();
1866             } else {
1867                 sender = content.getSender();
1868             }
1869             // Store uuid if we don't have it already
1870             resolveSignalServiceAddress(sender);
1871
1872             if (content.getDataMessage().isPresent()) {
1873                 SignalServiceDataMessage message = content.getDataMessage().get();
1874
1875                 if (content.isNeedsReceipt()) {
1876                     actions.add(new SendReceiptAction(sender, message.getTimestamp()));
1877                 }
1878
1879                 actions.addAll(handleSignalServiceDataMessage(message,
1880                         false,
1881                         sender,
1882                         account.getSelfAddress(),
1883                         ignoreAttachments));
1884             }
1885             if (content.getSyncMessage().isPresent()) {
1886                 account.setMultiDevice(true);
1887                 SignalServiceSyncMessage syncMessage = content.getSyncMessage().get();
1888                 if (syncMessage.getSent().isPresent()) {
1889                     SentTranscriptMessage message = syncMessage.getSent().get();
1890                     final SignalServiceAddress destination = message.getDestination().orNull();
1891                     actions.addAll(handleSignalServiceDataMessage(message.getMessage(),
1892                             true,
1893                             sender,
1894                             destination,
1895                             ignoreAttachments));
1896                 }
1897                 if (syncMessage.getRequest().isPresent()) {
1898                     RequestMessage rm = syncMessage.getRequest().get();
1899                     if (rm.isContactsRequest()) {
1900                         actions.add(SendSyncContactsAction.create());
1901                     }
1902                     if (rm.isGroupsRequest()) {
1903                         actions.add(SendSyncGroupsAction.create());
1904                     }
1905                     if (rm.isBlockedListRequest()) {
1906                         actions.add(SendSyncBlockedListAction.create());
1907                     }
1908                     // TODO Handle rm.isConfigurationRequest(); rm.isKeysRequest();
1909                 }
1910                 if (syncMessage.getGroups().isPresent()) {
1911                     File tmpFile = null;
1912                     try {
1913                         tmpFile = IOUtils.createTempFile();
1914                         final SignalServiceAttachment groupsMessage = syncMessage.getGroups().get();
1915                         try (InputStream attachmentAsStream = retrieveAttachmentAsStream(groupsMessage.asPointer(),
1916                                 tmpFile)) {
1917                             DeviceGroupsInputStream s = new DeviceGroupsInputStream(attachmentAsStream);
1918                             DeviceGroup g;
1919                             while ((g = s.read()) != null) {
1920                                 GroupInfoV1 syncGroup = account.getGroupStore()
1921                                         .getOrCreateGroupV1(GroupId.v1(g.getId()));
1922                                 if (syncGroup != null) {
1923                                     if (g.getName().isPresent()) {
1924                                         syncGroup.name = g.getName().get();
1925                                     }
1926                                     syncGroup.addMembers(g.getMembers()
1927                                             .stream()
1928                                             .map(this::resolveSignalServiceAddress)
1929                                             .collect(Collectors.toSet()));
1930                                     if (!g.isActive()) {
1931                                         syncGroup.removeMember(account.getSelfAddress());
1932                                     } else {
1933                                         // Add ourself to the member set as it's marked as active
1934                                         syncGroup.addMembers(List.of(account.getSelfAddress()));
1935                                     }
1936                                     syncGroup.blocked = g.isBlocked();
1937                                     if (g.getColor().isPresent()) {
1938                                         syncGroup.color = g.getColor().get();
1939                                     }
1940
1941                                     if (g.getAvatar().isPresent()) {
1942                                         downloadGroupAvatar(g.getAvatar().get(), syncGroup.getGroupId());
1943                                     }
1944                                     syncGroup.inboxPosition = g.getInboxPosition().orNull();
1945                                     syncGroup.archived = g.isArchived();
1946                                     account.getGroupStore().updateGroup(syncGroup);
1947                                 }
1948                             }
1949                         }
1950                     } catch (Exception e) {
1951                         logger.warn("Failed to handle received sync groups “{}”, ignoring: {}",
1952                                 tmpFile,
1953                                 e.getMessage());
1954                     } finally {
1955                         if (tmpFile != null) {
1956                             try {
1957                                 Files.delete(tmpFile.toPath());
1958                             } catch (IOException e) {
1959                                 logger.warn("Failed to delete received groups temp file “{}”, ignoring: {}",
1960                                         tmpFile,
1961                                         e.getMessage());
1962                             }
1963                         }
1964                     }
1965                 }
1966                 if (syncMessage.getBlockedList().isPresent()) {
1967                     final BlockedListMessage blockedListMessage = syncMessage.getBlockedList().get();
1968                     for (SignalServiceAddress address : blockedListMessage.getAddresses()) {
1969                         setContactBlocked(resolveSignalServiceAddress(address), true);
1970                     }
1971                     for (GroupId groupId : blockedListMessage.getGroupIds()
1972                             .stream()
1973                             .map(GroupId::unknownVersion)
1974                             .collect(Collectors.toSet())) {
1975                         try {
1976                             setGroupBlocked(groupId, true);
1977                         } catch (GroupNotFoundException e) {
1978                             logger.warn("BlockedListMessage contained groupID that was not found in GroupStore: {}",
1979                                     groupId.toBase64());
1980                         }
1981                     }
1982                 }
1983                 if (syncMessage.getContacts().isPresent()) {
1984                     File tmpFile = null;
1985                     try {
1986                         tmpFile = IOUtils.createTempFile();
1987                         final ContactsMessage contactsMessage = syncMessage.getContacts().get();
1988                         try (InputStream attachmentAsStream = retrieveAttachmentAsStream(contactsMessage.getContactsStream()
1989                                 .asPointer(), tmpFile)) {
1990                             DeviceContactsInputStream s = new DeviceContactsInputStream(attachmentAsStream);
1991                             if (contactsMessage.isComplete()) {
1992                                 account.getContactStore().clear();
1993                             }
1994                             DeviceContact c;
1995                             while ((c = s.read()) != null) {
1996                                 if (c.getAddress().matches(account.getSelfAddress()) && c.getProfileKey().isPresent()) {
1997                                     account.setProfileKey(c.getProfileKey().get());
1998                                 }
1999                                 final SignalServiceAddress address = resolveSignalServiceAddress(c.getAddress());
2000                                 ContactInfo contact = account.getContactStore().getContact(address);
2001                                 if (contact == null) {
2002                                     contact = new ContactInfo(address);
2003                                 }
2004                                 if (c.getName().isPresent()) {
2005                                     contact.name = c.getName().get();
2006                                 }
2007                                 if (c.getColor().isPresent()) {
2008                                     contact.color = c.getColor().get();
2009                                 }
2010                                 if (c.getProfileKey().isPresent()) {
2011                                     account.getProfileStore().storeProfileKey(address, c.getProfileKey().get());
2012                                 }
2013                                 if (c.getVerified().isPresent()) {
2014                                     final VerifiedMessage verifiedMessage = c.getVerified().get();
2015                                     account.getSignalProtocolStore()
2016                                             .setIdentityTrustLevel(verifiedMessage.getDestination(),
2017                                                     verifiedMessage.getIdentityKey(),
2018                                                     TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
2019                                 }
2020                                 if (c.getExpirationTimer().isPresent()) {
2021                                     contact.messageExpirationTime = c.getExpirationTimer().get();
2022                                 }
2023                                 contact.blocked = c.isBlocked();
2024                                 contact.inboxPosition = c.getInboxPosition().orNull();
2025                                 contact.archived = c.isArchived();
2026                                 account.getContactStore().updateContact(contact);
2027
2028                                 if (c.getAvatar().isPresent()) {
2029                                     downloadContactAvatar(c.getAvatar().get(), contact.getAddress());
2030                                 }
2031                             }
2032                         }
2033                     } catch (Exception e) {
2034                         logger.warn("Failed to handle received sync contacts “{}”, ignoring: {}",
2035                                 tmpFile,
2036                                 e.getMessage());
2037                     } finally {
2038                         if (tmpFile != null) {
2039                             try {
2040                                 Files.delete(tmpFile.toPath());
2041                             } catch (IOException e) {
2042                                 logger.warn("Failed to delete received contacts temp file “{}”, ignoring: {}",
2043                                         tmpFile,
2044                                         e.getMessage());
2045                             }
2046                         }
2047                     }
2048                 }
2049                 if (syncMessage.getVerified().isPresent()) {
2050                     final VerifiedMessage verifiedMessage = syncMessage.getVerified().get();
2051                     account.getSignalProtocolStore()
2052                             .setIdentityTrustLevel(resolveSignalServiceAddress(verifiedMessage.getDestination()),
2053                                     verifiedMessage.getIdentityKey(),
2054                                     TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
2055                 }
2056                 if (syncMessage.getStickerPackOperations().isPresent()) {
2057                     final List<StickerPackOperationMessage> stickerPackOperationMessages = syncMessage.getStickerPackOperations()
2058                             .get();
2059                     for (StickerPackOperationMessage m : stickerPackOperationMessages) {
2060                         if (!m.getPackId().isPresent()) {
2061                             continue;
2062                         }
2063                         Sticker sticker = account.getStickerStore().getSticker(m.getPackId().get());
2064                         if (sticker == null) {
2065                             if (!m.getPackKey().isPresent()) {
2066                                 continue;
2067                             }
2068                             sticker = new Sticker(m.getPackId().get(), m.getPackKey().get());
2069                         }
2070                         sticker.setInstalled(!m.getType().isPresent()
2071                                 || m.getType().get() == StickerPackOperationMessage.Type.INSTALL);
2072                         account.getStickerStore().updateSticker(sticker);
2073                     }
2074                 }
2075                 if (syncMessage.getFetchType().isPresent()) {
2076                     switch (syncMessage.getFetchType().get()) {
2077                         case LOCAL_PROFILE:
2078                             getRecipientProfile(getSelfAddress(), true);
2079                         case STORAGE_MANIFEST:
2080                             // TODO
2081                     }
2082                 }
2083                 if (syncMessage.getKeys().isPresent()) {
2084                     final KeysMessage keysMessage = syncMessage.getKeys().get();
2085                     if (keysMessage.getStorageService().isPresent()) {
2086                         final StorageKey storageKey = keysMessage.getStorageService().get();
2087                         account.setStorageKey(storageKey);
2088                     }
2089                 }
2090                 if (syncMessage.getConfiguration().isPresent()) {
2091                     // TODO
2092                 }
2093             }
2094         }
2095         return actions;
2096     }
2097
2098     private void downloadContactAvatar(SignalServiceAttachment avatar, SignalServiceAddress address) {
2099         try {
2100             avatarStore.storeContactAvatar(address, outputStream -> retrieveAttachment(avatar, outputStream));
2101         } catch (IOException e) {
2102             logger.warn("Failed to download avatar for contact {}, ignoring: {}", address, e.getMessage());
2103         }
2104     }
2105
2106     private void downloadGroupAvatar(SignalServiceAttachment avatar, GroupId groupId) {
2107         try {
2108             avatarStore.storeGroupAvatar(groupId, outputStream -> retrieveAttachment(avatar, outputStream));
2109         } catch (IOException e) {
2110             logger.warn("Failed to download avatar for group {}, ignoring: {}", groupId.toBase64(), e.getMessage());
2111         }
2112     }
2113
2114     private void downloadGroupAvatar(GroupId groupId, GroupSecretParams groupSecretParams, String cdnKey) {
2115         try {
2116             avatarStore.storeGroupAvatar(groupId,
2117                     outputStream -> retrieveGroupV2Avatar(groupSecretParams, cdnKey, outputStream));
2118         } catch (IOException e) {
2119             logger.warn("Failed to download avatar for group {}, ignoring: {}", groupId.toBase64(), e.getMessage());
2120         }
2121     }
2122
2123     private void downloadProfileAvatar(
2124             SignalServiceAddress address, String avatarPath, ProfileKey profileKey
2125     ) {
2126         try {
2127             avatarStore.storeProfileAvatar(address,
2128                     outputStream -> retrieveProfileAvatar(avatarPath, profileKey, outputStream));
2129         } catch (Throwable e) {
2130             logger.warn("Failed to download profile avatar, ignoring: {}", e.getMessage());
2131         }
2132     }
2133
2134     public File getAttachmentFile(SignalServiceAttachmentRemoteId attachmentId) {
2135         return attachmentStore.getAttachmentFile(attachmentId);
2136     }
2137
2138     private void downloadAttachment(final SignalServiceAttachment attachment) {
2139         if (!attachment.isPointer()) {
2140             logger.warn("Invalid state, can't store an attachment stream.");
2141         }
2142
2143         SignalServiceAttachmentPointer pointer = attachment.asPointer();
2144         if (pointer.getPreview().isPresent()) {
2145             final byte[] preview = pointer.getPreview().get();
2146             try {
2147                 attachmentStore.storeAttachmentPreview(pointer.getRemoteId(),
2148                         outputStream -> outputStream.write(preview, 0, preview.length));
2149             } catch (IOException e) {
2150                 logger.warn("Failed to download attachment preview, ignoring: {}", e.getMessage());
2151             }
2152         }
2153
2154         try {
2155             attachmentStore.storeAttachment(pointer.getRemoteId(),
2156                     outputStream -> retrieveAttachmentPointer(pointer, outputStream));
2157         } catch (IOException e) {
2158             logger.warn("Failed to download attachment ({}), ignoring: {}", pointer.getRemoteId(), e.getMessage());
2159         }
2160     }
2161
2162     private void retrieveGroupV2Avatar(
2163             GroupSecretParams groupSecretParams, String cdnKey, OutputStream outputStream
2164     ) throws IOException {
2165         GroupsV2Operations.GroupOperations groupOperations = groupsV2Operations.forGroup(groupSecretParams);
2166
2167         File tmpFile = IOUtils.createTempFile();
2168         try (InputStream input = messageReceiver.retrieveGroupsV2ProfileAvatar(cdnKey,
2169                 tmpFile,
2170                 ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
2171             byte[] encryptedData = IOUtils.readFully(input);
2172
2173             byte[] decryptedData = groupOperations.decryptAvatar(encryptedData);
2174             outputStream.write(decryptedData);
2175         } finally {
2176             try {
2177                 Files.delete(tmpFile.toPath());
2178             } catch (IOException e) {
2179                 logger.warn("Failed to delete received group avatar temp file “{}”, ignoring: {}",
2180                         tmpFile,
2181                         e.getMessage());
2182             }
2183         }
2184     }
2185
2186     private void retrieveProfileAvatar(
2187             String avatarPath, ProfileKey profileKey, OutputStream outputStream
2188     ) throws IOException {
2189         File tmpFile = IOUtils.createTempFile();
2190         try (InputStream input = messageReceiver.retrieveProfileAvatar(avatarPath,
2191                 tmpFile,
2192                 profileKey,
2193                 ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
2194             // Use larger buffer size to prevent AssertionError: Need: 12272 but only have: 8192 ...
2195             IOUtils.copyStream(input, outputStream, (int) ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE);
2196         } finally {
2197             try {
2198                 Files.delete(tmpFile.toPath());
2199             } catch (IOException e) {
2200                 logger.warn("Failed to delete received profile avatar temp file “{}”, ignoring: {}",
2201                         tmpFile,
2202                         e.getMessage());
2203             }
2204         }
2205     }
2206
2207     private void retrieveAttachment(
2208             final SignalServiceAttachment attachment, final OutputStream outputStream
2209     ) throws IOException {
2210         if (attachment.isPointer()) {
2211             SignalServiceAttachmentPointer pointer = attachment.asPointer();
2212             retrieveAttachmentPointer(pointer, outputStream);
2213         } else {
2214             SignalServiceAttachmentStream stream = attachment.asStream();
2215             IOUtils.copyStream(stream.getInputStream(), outputStream);
2216         }
2217     }
2218
2219     private void retrieveAttachmentPointer(
2220             SignalServiceAttachmentPointer pointer, OutputStream outputStream
2221     ) throws IOException {
2222         File tmpFile = IOUtils.createTempFile();
2223         try (InputStream input = retrieveAttachmentAsStream(pointer, tmpFile)) {
2224             IOUtils.copyStream(input, outputStream);
2225         } catch (MissingConfigurationException | InvalidMessageException e) {
2226             throw new IOException(e);
2227         } finally {
2228             try {
2229                 Files.delete(tmpFile.toPath());
2230             } catch (IOException e) {
2231                 logger.warn("Failed to delete received attachment temp file “{}”, ignoring: {}",
2232                         tmpFile,
2233                         e.getMessage());
2234             }
2235         }
2236     }
2237
2238     private InputStream retrieveAttachmentAsStream(
2239             SignalServiceAttachmentPointer pointer, File tmpFile
2240     ) throws IOException, InvalidMessageException, MissingConfigurationException {
2241         return messageReceiver.retrieveAttachment(pointer, tmpFile, ServiceConfig.MAX_ATTACHMENT_SIZE);
2242     }
2243
2244     void sendGroups() throws IOException, UntrustedIdentityException {
2245         File groupsFile = IOUtils.createTempFile();
2246
2247         try {
2248             try (OutputStream fos = new FileOutputStream(groupsFile)) {
2249                 DeviceGroupsOutputStream out = new DeviceGroupsOutputStream(fos);
2250                 for (GroupInfo record : getGroups()) {
2251                     if (record instanceof GroupInfoV1) {
2252                         GroupInfoV1 groupInfo = (GroupInfoV1) record;
2253                         out.write(new DeviceGroup(groupInfo.getGroupId().serialize(),
2254                                 Optional.fromNullable(groupInfo.name),
2255                                 new ArrayList<>(groupInfo.getMembers()),
2256                                 createGroupAvatarAttachment(groupInfo.getGroupId()),
2257                                 groupInfo.isMember(account.getSelfAddress()),
2258                                 Optional.of(groupInfo.messageExpirationTime),
2259                                 Optional.fromNullable(groupInfo.color),
2260                                 groupInfo.blocked,
2261                                 Optional.fromNullable(groupInfo.inboxPosition),
2262                                 groupInfo.archived));
2263                     }
2264                 }
2265             }
2266
2267             if (groupsFile.exists() && groupsFile.length() > 0) {
2268                 try (FileInputStream groupsFileStream = new FileInputStream(groupsFile)) {
2269                     SignalServiceAttachmentStream attachmentStream = SignalServiceAttachment.newStreamBuilder()
2270                             .withStream(groupsFileStream)
2271                             .withContentType("application/octet-stream")
2272                             .withLength(groupsFile.length())
2273                             .build();
2274
2275                     sendSyncMessage(SignalServiceSyncMessage.forGroups(attachmentStream));
2276                 }
2277             }
2278         } finally {
2279             try {
2280                 Files.delete(groupsFile.toPath());
2281             } catch (IOException e) {
2282                 logger.warn("Failed to delete groups temp file “{}”, ignoring: {}", groupsFile, e.getMessage());
2283             }
2284         }
2285     }
2286
2287     public void sendContacts() throws IOException, UntrustedIdentityException {
2288         File contactsFile = IOUtils.createTempFile();
2289
2290         try {
2291             try (OutputStream fos = new FileOutputStream(contactsFile)) {
2292                 DeviceContactsOutputStream out = new DeviceContactsOutputStream(fos);
2293                 for (ContactInfo record : account.getContactStore().getContacts()) {
2294                     VerifiedMessage verifiedMessage = null;
2295                     IdentityInfo currentIdentity = account.getSignalProtocolStore().getIdentity(record.getAddress());
2296                     if (currentIdentity != null) {
2297                         verifiedMessage = new VerifiedMessage(record.getAddress(),
2298                                 currentIdentity.getIdentityKey(),
2299                                 currentIdentity.getTrustLevel().toVerifiedState(),
2300                                 currentIdentity.getDateAdded().getTime());
2301                     }
2302
2303                     ProfileKey profileKey = account.getProfileStore().getProfileKey(record.getAddress());
2304                     out.write(new DeviceContact(record.getAddress(),
2305                             Optional.fromNullable(record.name),
2306                             createContactAvatarAttachment(record.getAddress()),
2307                             Optional.fromNullable(record.color),
2308                             Optional.fromNullable(verifiedMessage),
2309                             Optional.fromNullable(profileKey),
2310                             record.blocked,
2311                             Optional.of(record.messageExpirationTime),
2312                             Optional.fromNullable(record.inboxPosition),
2313                             record.archived));
2314                 }
2315
2316                 if (account.getProfileKey() != null) {
2317                     // Send our own profile key as well
2318                     out.write(new DeviceContact(account.getSelfAddress(),
2319                             Optional.absent(),
2320                             Optional.absent(),
2321                             Optional.absent(),
2322                             Optional.absent(),
2323                             Optional.of(account.getProfileKey()),
2324                             false,
2325                             Optional.absent(),
2326                             Optional.absent(),
2327                             false));
2328                 }
2329             }
2330
2331             if (contactsFile.exists() && contactsFile.length() > 0) {
2332                 try (FileInputStream contactsFileStream = new FileInputStream(contactsFile)) {
2333                     SignalServiceAttachmentStream attachmentStream = SignalServiceAttachment.newStreamBuilder()
2334                             .withStream(contactsFileStream)
2335                             .withContentType("application/octet-stream")
2336                             .withLength(contactsFile.length())
2337                             .build();
2338
2339                     sendSyncMessage(SignalServiceSyncMessage.forContacts(new ContactsMessage(attachmentStream, true)));
2340                 }
2341             }
2342         } finally {
2343             try {
2344                 Files.delete(contactsFile.toPath());
2345             } catch (IOException e) {
2346                 logger.warn("Failed to delete contacts temp file “{}”, ignoring: {}", contactsFile, e.getMessage());
2347             }
2348         }
2349     }
2350
2351     void sendBlockedList() throws IOException, UntrustedIdentityException {
2352         List<SignalServiceAddress> addresses = new ArrayList<>();
2353         for (ContactInfo record : account.getContactStore().getContacts()) {
2354             if (record.blocked) {
2355                 addresses.add(record.getAddress());
2356             }
2357         }
2358         List<byte[]> groupIds = new ArrayList<>();
2359         for (GroupInfo record : getGroups()) {
2360             if (record.isBlocked()) {
2361                 groupIds.add(record.getGroupId().serialize());
2362             }
2363         }
2364         sendSyncMessage(SignalServiceSyncMessage.forBlocked(new BlockedListMessage(addresses, groupIds)));
2365     }
2366
2367     private void sendVerifiedMessage(
2368             SignalServiceAddress destination, IdentityKey identityKey, TrustLevel trustLevel
2369     ) throws IOException, UntrustedIdentityException {
2370         VerifiedMessage verifiedMessage = new VerifiedMessage(destination,
2371                 identityKey,
2372                 trustLevel.toVerifiedState(),
2373                 System.currentTimeMillis());
2374         sendSyncMessage(SignalServiceSyncMessage.forVerified(verifiedMessage));
2375     }
2376
2377     public List<ContactInfo> getContacts() {
2378         return account.getContactStore().getContacts();
2379     }
2380
2381     public String getContactOrProfileName(String number) {
2382         final SignalServiceAddress address = Utils.getSignalServiceAddressFromIdentifier(number);
2383
2384         final ContactInfo contact = account.getContactStore().getContact(address);
2385         if (contact != null && !Util.isEmpty(contact.name)) {
2386             return contact.name;
2387         }
2388
2389         final SignalProfileEntry profileEntry = account.getProfileStore().getProfileEntry(address);
2390         if (profileEntry != null && profileEntry.getProfile() != null) {
2391             return profileEntry.getProfile().getName();
2392         }
2393
2394         return null;
2395     }
2396
2397     public GroupInfo getGroup(GroupId groupId) {
2398         final GroupInfo group = account.getGroupStore().getGroup(groupId);
2399         if (group instanceof GroupInfoV2 && ((GroupInfoV2) group).getGroup() == null) {
2400             final GroupSecretParams groupSecretParams = GroupSecretParams.deriveFromMasterKey(((GroupInfoV2) group).getMasterKey());
2401             ((GroupInfoV2) group).setGroup(groupHelper.getDecryptedGroup(groupSecretParams));
2402             account.getGroupStore().updateGroup(group);
2403         }
2404         return group;
2405     }
2406
2407     public List<IdentityInfo> getIdentities() {
2408         return account.getSignalProtocolStore().getIdentities();
2409     }
2410
2411     public List<IdentityInfo> getIdentities(String number) throws InvalidNumberException {
2412         return account.getSignalProtocolStore().getIdentities(canonicalizeAndResolveSignalServiceAddress(number));
2413     }
2414
2415     /**
2416      * Trust this the identity with this fingerprint
2417      *
2418      * @param name        username of the identity
2419      * @param fingerprint Fingerprint
2420      */
2421     public boolean trustIdentityVerified(String name, byte[] fingerprint) throws InvalidNumberException {
2422         SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(name);
2423         List<IdentityInfo> ids = account.getSignalProtocolStore().getIdentities(address);
2424         if (ids == null) {
2425             return false;
2426         }
2427         for (IdentityInfo id : ids) {
2428             if (!Arrays.equals(id.getIdentityKey().serialize(), fingerprint)) {
2429                 continue;
2430             }
2431
2432             account.getSignalProtocolStore()
2433                     .setIdentityTrustLevel(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
2434             try {
2435                 sendVerifiedMessage(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
2436             } catch (IOException | UntrustedIdentityException e) {
2437                 logger.warn("Failed to send verification sync message: {}", e.getMessage());
2438             }
2439             account.save();
2440             return true;
2441         }
2442         return false;
2443     }
2444
2445     /**
2446      * Trust this the identity with this safety number
2447      *
2448      * @param name         username of the identity
2449      * @param safetyNumber Safety number
2450      */
2451     public boolean trustIdentityVerifiedSafetyNumber(String name, String safetyNumber) throws InvalidNumberException {
2452         SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(name);
2453         List<IdentityInfo> ids = account.getSignalProtocolStore().getIdentities(address);
2454         if (ids == null) {
2455             return false;
2456         }
2457         for (IdentityInfo id : ids) {
2458             if (!safetyNumber.equals(computeSafetyNumber(address, id.getIdentityKey()))) {
2459                 continue;
2460             }
2461
2462             account.getSignalProtocolStore()
2463                     .setIdentityTrustLevel(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
2464             try {
2465                 sendVerifiedMessage(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
2466             } catch (IOException | UntrustedIdentityException e) {
2467                 logger.warn("Failed to send verification sync message: {}", e.getMessage());
2468             }
2469             account.save();
2470             return true;
2471         }
2472         return false;
2473     }
2474
2475     /**
2476      * Trust all keys of this identity without verification
2477      *
2478      * @param name username of the identity
2479      */
2480     public boolean trustIdentityAllKeys(String name) {
2481         SignalServiceAddress address = resolveSignalServiceAddress(name);
2482         List<IdentityInfo> ids = account.getSignalProtocolStore().getIdentities(address);
2483         if (ids == null) {
2484             return false;
2485         }
2486         for (IdentityInfo id : ids) {
2487             if (id.getTrustLevel() == TrustLevel.UNTRUSTED) {
2488                 account.getSignalProtocolStore()
2489                         .setIdentityTrustLevel(address, id.getIdentityKey(), TrustLevel.TRUSTED_UNVERIFIED);
2490                 try {
2491                     sendVerifiedMessage(address, id.getIdentityKey(), TrustLevel.TRUSTED_UNVERIFIED);
2492                 } catch (IOException | UntrustedIdentityException e) {
2493                     logger.warn("Failed to send verification sync message: {}", e.getMessage());
2494                 }
2495             }
2496         }
2497         account.save();
2498         return true;
2499     }
2500
2501     public String computeSafetyNumber(
2502             SignalServiceAddress theirAddress, IdentityKey theirIdentityKey
2503     ) {
2504         return Utils.computeSafetyNumber(ServiceConfig.capabilities.isUuid(),
2505                 account.getSelfAddress(),
2506                 getIdentityKeyPair().getPublicKey(),
2507                 theirAddress,
2508                 theirIdentityKey);
2509     }
2510
2511     public SignalServiceAddress canonicalizeAndResolveSignalServiceAddress(String identifier) throws InvalidNumberException {
2512         String canonicalizedNumber = UuidUtil.isUuid(identifier)
2513                 ? identifier
2514                 : PhoneNumberFormatter.formatNumber(identifier, account.getUsername());
2515         return resolveSignalServiceAddress(canonicalizedNumber);
2516     }
2517
2518     public SignalServiceAddress resolveSignalServiceAddress(String identifier) {
2519         SignalServiceAddress address = Utils.getSignalServiceAddressFromIdentifier(identifier);
2520
2521         return resolveSignalServiceAddress(address);
2522     }
2523
2524     public SignalServiceAddress resolveSignalServiceAddress(SignalServiceAddress address) {
2525         if (address.matches(account.getSelfAddress())) {
2526             return account.getSelfAddress();
2527         }
2528
2529         return account.getRecipientStore().resolveServiceAddress(address);
2530     }
2531
2532     @Override
2533     public void close() throws IOException {
2534         close(true);
2535     }
2536
2537     void close(boolean closeAccount) throws IOException {
2538         executor.shutdown();
2539
2540         if (messagePipe != null) {
2541             messagePipe.shutdown();
2542             messagePipe = null;
2543         }
2544
2545         if (unidentifiedMessagePipe != null) {
2546             unidentifiedMessagePipe.shutdown();
2547             unidentifiedMessagePipe = null;
2548         }
2549
2550         if (closeAccount && account != null) {
2551             account.close();
2552         }
2553         account = null;
2554     }
2555
2556     public interface ReceiveMessageHandler {
2557
2558         void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent decryptedContent, Throwable e);
2559     }
2560 }