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.ecc.ECPublicKey;
  80 import org.whispersystems.libsignal.state.PreKeyRecord;
  81 import org.whispersystems.libsignal.state.SignedPreKeyRecord;
  82 import org.whispersystems.libsignal.util.Pair;
  83 import org.whispersystems.libsignal.util.guava.Optional;
  84 import org.whispersystems.signalservice.api.KeyBackupService;
  85 import org.whispersystems.signalservice.api.SignalServiceAccountManager;
  86 import org.whispersystems.signalservice.api.SignalServiceMessagePipe;
  87 import org.whispersystems.signalservice.api.SignalServiceMessageReceiver;
  88 import org.whispersystems.signalservice.api.SignalServiceMessageSender;
  89 import org.whispersystems.signalservice.api.crypto.SignalServiceCipher;
  90 import org.whispersystems.signalservice.api.crypto.UnidentifiedAccessPair;
  91 import org.whispersystems.signalservice.api.crypto.UntrustedIdentityException;
  92 import org.whispersystems.signalservice.api.groupsv2.ClientZkOperations;
  93 import org.whispersystems.signalservice.api.groupsv2.GroupLinkNotActiveException;
  94 import org.whispersystems.signalservice.api.groupsv2.GroupsV2Api;
  95 import org.whispersystems.signalservice.api.groupsv2.GroupsV2AuthorizationString;
  96 import org.whispersystems.signalservice.api.groupsv2.GroupsV2Operations;
  97 import org.whispersystems.signalservice.api.kbs.MasterKey;
  98 import org.whispersystems.signalservice.api.messages.SendMessageResult;
  99 import org.whispersystems.signalservice.api.messages.SignalServiceAttachment;
 100 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentPointer;
 101 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentRemoteId;
 102 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentStream;
 103 import org.whispersystems.signalservice.api.messages.SignalServiceContent;
 104 import org.whispersystems.signalservice.api.messages.SignalServiceDataMessage;
 105 import org.whispersystems.signalservice.api.messages.SignalServiceEnvelope;
 106 import org.whispersystems.signalservice.api.messages.SignalServiceGroup;
 107 import org.whispersystems.signalservice.api.messages.SignalServiceGroupV2;
 108 import org.whispersystems.signalservice.api.messages.SignalServiceReceiptMessage;
 109 import org.whispersystems.signalservice.api.messages.SignalServiceStickerManifestUpload;
 110 import org.whispersystems.signalservice.api.messages.multidevice.BlockedListMessage;
 111 import org.whispersystems.signalservice.api.messages.multidevice.ContactsMessage;
 112 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContact;
 113 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsInputStream;
 114 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsOutputStream;
 115 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroup;
 116 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsInputStream;
 117 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsOutputStream;
 118 import org.whispersystems.signalservice.api.messages.multidevice.DeviceInfo;
 119 import org.whispersystems.signalservice.api.messages.multidevice.KeysMessage;
 120 import org.whispersystems.signalservice.api.messages.multidevice.RequestMessage;
 121 import org.whispersystems.signalservice.api.messages.multidevice.SentTranscriptMessage;
 122 import org.whispersystems.signalservice.api.messages.multidevice.SignalServiceSyncMessage;
 123 import org.whispersystems.signalservice.api.messages.multidevice.StickerPackOperationMessage;
 124 import org.whispersystems.signalservice.api.messages.multidevice.VerifiedMessage;
 125 import org.whispersystems.signalservice.api.messages.shared.SharedContact;
 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.getDeviceId()),
 223                 userAgent,
 224                 groupsV2Operations,
 225                 ServiceConfig.AUTOMATIC_NETWORK_RETRY,
 226                 timer);
 227         this.groupsV2Api = accountManager.getGroupsV2Api();
 228         final KeyBackupService keyBackupService = accountManager.getKeyBackupService(ServiceConfig.getIasKeyStore(),
 229                 serviceEnvironmentConfig.getKeyBackupConfig().getEnclaveName(),
 230                 serviceEnvironmentConfig.getKeyBackupConfig().getServiceId(),
 231                 serviceEnvironmentConfig.getKeyBackupConfig().getMrenclave(),
 232                 10);
 233
 234         this.pinHelper = new PinHelper(keyBackupService);
 235         this.clientZkProfileOperations = capabilities.isGv2()
 236                 ? ClientZkOperations.create(serviceEnvironmentConfig.getSignalServiceConfiguration())
 237                 .getProfileOperations()
 238                 : null;
 239         this.messageReceiver = new SignalServiceMessageReceiver(serviceEnvironmentConfig.getSignalServiceConfiguration(),
 240                 account.getUuid(),
 241                 account.getUsername(),
 242                 account.getPassword(),
 243                 account.getDeviceId(),
 244                 userAgent,
 245                 null,
 246                 timer,
 247                 clientZkProfileOperations,
 248                 ServiceConfig.AUTOMATIC_NETWORK_RETRY);
 249
 250         this.account.setResolver(this::resolveSignalServiceAddress);
 251
 252         this.unidentifiedAccessHelper = new UnidentifiedAccessHelper(account::getProfileKey,
 253                 account.getProfileStore()::getProfileKey,
 254                 this::getRecipientProfile,
 255                 this::getSenderCertificate);
 256         this.profileHelper = new ProfileHelper(account.getProfileStore()::getProfileKey,
 257                 unidentifiedAccessHelper::getAccessFor,
 258                 unidentified -> unidentified ? getOrCreateUnidentifiedMessagePipe() : getOrCreateMessagePipe(),
 259                 () -> messageReceiver);
 260         this.groupHelper = new GroupHelper(this::getRecipientProfileKeyCredential,
 261                 this::getRecipientProfile,
 262                 account::getSelfAddress,
 263                 groupsV2Operations,
 264                 groupsV2Api,
 265                 this::getGroupAuthForToday);
 266         this.avatarStore = new AvatarStore(pathConfig.getAvatarsPath());
 267         this.attachmentStore = new AttachmentStore(pathConfig.getAttachmentsPath());
 268     }
 269
 270     public String getUsername() {
 271         return account.getUsername();
 272     }
 273
 274     public SignalServiceAddress getSelfAddress() {
 275         return account.getSelfAddress();
 276     }
 277
 278     private IdentityKeyPair getIdentityKeyPair() {
 279         return account.getSignalProtocolStore().getIdentityKeyPair();
 280     }
 281
 282     public int getDeviceId() {
 283         return account.getDeviceId();
 284     }
 285
 286     public static Manager init(
 287             String username, File settingsPath, ServiceEnvironment serviceEnvironment, String userAgent
 288     ) throws IOException, NotRegisteredException {
 289         PathConfig pathConfig = PathConfig.createDefault(settingsPath);
 290
 291         if (!SignalAccount.userExists(pathConfig.getDataPath(), username)) {
 292             throw new NotRegisteredException();
 293         }
 294
 295         SignalAccount account = SignalAccount.load(pathConfig.getDataPath(), username);
 296
 297         if (!account.isRegistered()) {
 298             throw new NotRegisteredException();
 299         }
 300
 301         final ServiceEnvironmentConfig serviceEnvironmentConfig = ServiceConfig.getServiceEnvironmentConfig(
 302                 serviceEnvironment,
 303                 userAgent);
 304
 305         return new Manager(account, pathConfig, serviceEnvironmentConfig, userAgent);
 306     }
 307
 308     public static List<String> getAllLocalUsernames(File settingsPath) {
 309         PathConfig pathConfig = PathConfig.createDefault(settingsPath);
 310         final File dataPath = pathConfig.getDataPath();
 311         final File[] files = dataPath.listFiles();
 312
 313         if (files == null) {
 314             return List.of();
 315         }
 316
 317         return Arrays.stream(files)
 318                 .filter(File::isFile)
 319                 .map(File::getName)
 320                 .filter(file -> PhoneNumberFormatter.isValidNumber(file, null))
 321                 .collect(Collectors.toList());
 322     }
 323
 324     public void checkAccountState() throws IOException {
 325         if (accountManager.getPreKeysCount() < ServiceConfig.PREKEY_MINIMUM_COUNT) {
 326             refreshPreKeys();
 327             account.save();
 328         }
 329         if (account.getUuid() == null) {
 330             account.setUuid(accountManager.getOwnUuid());
 331             account.save();
 332         }
 333         updateAccountAttributes();
 334     }
 335
 336     /**
 337      * This is used for checking a set of phone numbers for registration on Signal
 338      *
 339      * @param numbers The set of phone number in question
 340      * @return A map of numbers to booleans. True if registered, false otherwise. Should never be null
 341      * @throws IOException if its unable to get the contacts to check if they're registered
 342      */
 343     public Map<String, Boolean> areUsersRegistered(Set<String> numbers) throws IOException {
 344         // Note "contactDetails" has no optionals. It only gives us info on users who are registered
 345         Map<String, UUID> contactDetails = getRegisteredUsers(numbers);
 346
 347         Set<String> registeredUsers = contactDetails.keySet();
 348
 349         return numbers.stream().collect(Collectors.toMap(x -> x, registeredUsers::contains));
 350     }
 351
 352     public void updateAccountAttributes() throws IOException {
 353         accountManager.setAccountAttributes(null,
 354                 account.getSignalProtocolStore().getLocalRegistrationId(),
 355                 true,
 356                 // set legacy pin only if no KBS master key is set
 357                 account.getPinMasterKey() == null ? account.getRegistrationLockPin() : null,
 358                 account.getPinMasterKey() == null ? null : account.getPinMasterKey().deriveRegistrationLock(),
 359                 account.getSelfUnidentifiedAccessKey(),
 360                 account.isUnrestrictedUnidentifiedAccess(),
 361                 capabilities,
 362                 account.isDiscoverableByPhoneNumber());
 363     }
 364
 365     /**
 366      * @param name       if null, the previous name will be kept
 367      * @param about      if null, the previous about text will be kept
 368      * @param aboutEmoji if null, the previous about emoji will be kept
 369      * @param avatar     if avatar is null the image from the local avatar store is used (if present),
 370      *                   if it's Optional.absent(), the avatar will be removed
 371      */
 372     public void setProfile(String name, String about, String aboutEmoji, Optional<File> avatar) throws IOException {
 373         SignalProfileEntry profileEntry = account.getProfileStore().getProfileEntry(getSelfAddress());
 374         SignalProfile profile = profileEntry == null ? null : profileEntry.getProfile();
 375         SignalProfile newProfile = new SignalProfile(profile == null ? null : profile.getIdentityKey(),
 376                 name != null ? name : profile == null || profile.getName() == null ? "" : profile.getName(),
 377                 about != null ? about : profile == null || profile.getAbout() == null ? "" : profile.getAbout(),
 378                 aboutEmoji != null
 379                         ? aboutEmoji
 380                         : profile == null || profile.getAboutEmoji() == null ? "" : profile.getAboutEmoji(),
 381                 profile == null ? null : profile.getUnidentifiedAccess(),
 382                 account.isUnrestrictedUnidentifiedAccess(),
 383                 profile == null ? null : profile.getCapabilities());
 384
 385         try (final StreamDetails streamDetails = avatar == null
 386                 ? avatarStore.retrieveProfileAvatar(getSelfAddress())
 387                 : avatar.isPresent() ? Utils.createStreamDetailsFromFile(avatar.get()) : null) {
 388             accountManager.setVersionedProfile(account.getUuid(),
 389                     account.getProfileKey(),
 390                     newProfile.getName(),
 391                     newProfile.getAbout(),
 392                     newProfile.getAboutEmoji(),
 393                     streamDetails);
 394         }
 395
 396         if (avatar != null) {
 397             if (avatar.isPresent()) {
 398                 avatarStore.storeProfileAvatar(getSelfAddress(),
 399                         outputStream -> IOUtils.copyFileToStream(avatar.get(), outputStream));
 400             } else {
 401                 avatarStore.deleteProfileAvatar(getSelfAddress());
 402             }
 403         }
 404         account.getProfileStore()
 405                 .updateProfile(getSelfAddress(),
 406                         account.getProfileKey(),
 407                         System.currentTimeMillis(),
 408                         newProfile,
 409                         profileEntry == null ? null : profileEntry.getProfileKeyCredential());
 410
 411         try {
 412             sendSyncMessage(SignalServiceSyncMessage.forFetchLatest(SignalServiceSyncMessage.FetchType.LOCAL_PROFILE));
 413         } catch (UntrustedIdentityException ignored) {
 414         }
 415     }
 416
 417     public void unregister() throws IOException {
 418         // When setting an empty GCM id, the Signal-Server also sets the fetchesMessages property to false.
 419         // If this is the master device, other users can't send messages to this number anymore.
 420         // If this is a linked device, other users can still send messages, but this device doesn't receive them anymore.
 421         accountManager.setGcmId(Optional.absent());
 422         accountManager.deleteAccount();
 423
 424         account.setRegistered(false);
 425         account.save();
 426     }
 427
 428     public List<DeviceInfo> getLinkedDevices() throws IOException {
 429         List<DeviceInfo> devices = accountManager.getDevices();
 430         account.setMultiDevice(devices.size() > 1);
 431         account.save();
 432         return devices;
 433     }
 434
 435     public void removeLinkedDevices(int deviceId) throws IOException {
 436         accountManager.removeDevice(deviceId);
 437         List<DeviceInfo> devices = accountManager.getDevices();
 438         account.setMultiDevice(devices.size() > 1);
 439         account.save();
 440     }
 441
 442     public void addDeviceLink(URI linkUri) throws IOException, InvalidKeyException {
 443         DeviceLinkInfo info = DeviceLinkInfo.parseDeviceLinkUri(linkUri);
 444
 445         addDevice(info.deviceIdentifier, info.deviceKey);
 446     }
 447
 448     private void addDevice(String deviceIdentifier, ECPublicKey deviceKey) throws IOException, InvalidKeyException {
 449         IdentityKeyPair identityKeyPair = getIdentityKeyPair();
 450         String verificationCode = accountManager.getNewDeviceVerificationCode();
 451
 452         accountManager.addDevice(deviceIdentifier,
 453                 deviceKey,
 454                 identityKeyPair,
 455                 Optional.of(account.getProfileKey().serialize()),
 456                 verificationCode);
 457         account.setMultiDevice(true);
 458         account.save();
 459     }
 460
 461     public void setRegistrationLockPin(Optional<String> pin) throws IOException, UnauthenticatedResponseException {
 462         if (!account.isMasterDevice()) {
 463             throw new RuntimeException("Only master device can set a PIN");
 464         }
 465         if (pin.isPresent()) {
 466             final MasterKey masterKey = account.getPinMasterKey() != null
 467                     ? account.getPinMasterKey()
 468                     : KeyUtils.createMasterKey();
 469
 470             pinHelper.setRegistrationLockPin(pin.get(), masterKey);
 471
 472             account.setRegistrationLockPin(pin.get());
 473             account.setPinMasterKey(masterKey);
 474         } else {
 475             // Remove legacy registration lock
 476             accountManager.removeRegistrationLockV1();
 477
 478             // Remove KBS Pin
 479             pinHelper.removeRegistrationLockPin();
 480
 481             account.setRegistrationLockPin(null);
 482             account.setPinMasterKey(null);
 483         }
 484         account.save();
 485     }
 486
 487     void refreshPreKeys() throws IOException {
 488         List<PreKeyRecord> oneTimePreKeys = generatePreKeys();
 489         final IdentityKeyPair identityKeyPair = getIdentityKeyPair();
 490         SignedPreKeyRecord signedPreKeyRecord = generateSignedPreKey(identityKeyPair);
 491
 492         accountManager.setPreKeys(identityKeyPair.getPublicKey(), signedPreKeyRecord, oneTimePreKeys);
 493     }
 494
 495     private List<PreKeyRecord> generatePreKeys() {
 496         final int offset = account.getPreKeyIdOffset();
 497
 498         List<PreKeyRecord> records = KeyUtils.generatePreKeyRecords(offset, ServiceConfig.PREKEY_BATCH_SIZE);
 499         account.addPreKeys(records);
 500         account.save();
 501
 502         return records;
 503     }
 504
 505     private SignedPreKeyRecord generateSignedPreKey(IdentityKeyPair identityKeyPair) {
 506         final int signedPreKeyId = account.getNextSignedPreKeyId();
 507
 508         SignedPreKeyRecord record = KeyUtils.generateSignedPreKeyRecord(identityKeyPair, signedPreKeyId);
 509         account.addSignedPreKey(record);
 510         account.save();
 511
 512         return record;
 513     }
 514
 515     private SignalServiceMessagePipe getOrCreateMessagePipe() {
 516         if (messagePipe == null) {
 517             messagePipe = messageReceiver.createMessagePipe();
 518         }
 519         return messagePipe;
 520     }
 521
 522     private SignalServiceMessagePipe getOrCreateUnidentifiedMessagePipe() {
 523         if (unidentifiedMessagePipe == null) {
 524             unidentifiedMessagePipe = messageReceiver.createUnidentifiedMessagePipe();
 525         }
 526         return unidentifiedMessagePipe;
 527     }
 528
 529     private SignalServiceMessageSender createMessageSender() {
 530         return new SignalServiceMessageSender(serviceEnvironmentConfig.getSignalServiceConfiguration(),
 531                 account.getUuid(),
 532                 account.getUsername(),
 533                 account.getPassword(),
 534                 account.getDeviceId(),
 535                 account.getSignalProtocolStore(),
 536                 userAgent,
 537                 account.isMultiDevice(),
 538                 Optional.fromNullable(messagePipe),
 539                 Optional.fromNullable(unidentifiedMessagePipe),
 540                 Optional.absent(),
 541                 clientZkProfileOperations,
 542                 executor,
 543                 ServiceConfig.MAX_ENVELOPE_SIZE,
 544                 ServiceConfig.AUTOMATIC_NETWORK_RETRY);
 545     }
 546
 547     private SignalProfile getRecipientProfile(
 548             SignalServiceAddress address
 549     ) {
 550         return getRecipientProfile(address, false);
 551     }
 552
 553     private SignalProfile getRecipientProfile(
 554             SignalServiceAddress address, boolean force
 555     ) {
 556         SignalProfileEntry profileEntry = account.getProfileStore().getProfileEntry(address);
 557         if (profileEntry == null) {
 558             return null;
 559         }
 560         long now = new Date().getTime();
 561         // Profiles are cached for 24h before retrieving them again
 562         if (!profileEntry.isRequestPending() && (
 563                 force
 564                         || profileEntry.getProfile() == null
 565                         || now - profileEntry.getLastUpdateTimestamp() > 24 * 60 * 60 * 1000
 566         )) {
 567             profileEntry.setRequestPending(true);
 568             final SignalServiceProfile encryptedProfile;
 569             try {
 570                 encryptedProfile = profileHelper.retrieveProfileSync(address, SignalServiceProfile.RequestType.PROFILE)
 571                         .getProfile();
 572             } catch (IOException e) {
 573                 logger.warn("Failed to retrieve profile, ignoring: {}", e.getMessage());
 574                 return null;
 575             } finally {
 576                 profileEntry.setRequestPending(false);
 577             }
 578
 579             final ProfileKey profileKey = profileEntry.getProfileKey();
 580             final SignalProfile profile = decryptProfileAndDownloadAvatar(address, profileKey, encryptedProfile);
 581             account.getProfileStore()
 582                     .updateProfile(address, profileKey, now, profile, profileEntry.getProfileKeyCredential());
 583             return profile;
 584         }
 585         return profileEntry.getProfile();
 586     }
 587
 588     private ProfileKeyCredential getRecipientProfileKeyCredential(SignalServiceAddress address) {
 589         SignalProfileEntry profileEntry = account.getProfileStore().getProfileEntry(address);
 590         if (profileEntry == null) {
 591             return null;
 592         }
 593         if (profileEntry.getProfileKeyCredential() == null) {
 594             ProfileAndCredential profileAndCredential;
 595             try {
 596                 profileAndCredential = profileHelper.retrieveProfileSync(address,
 597                         SignalServiceProfile.RequestType.PROFILE_AND_CREDENTIAL);
 598             } catch (IOException e) {
 599                 logger.warn("Failed to retrieve profile key credential, ignoring: {}", e.getMessage());
 600                 return null;
 601             }
 602
 603             long now = new Date().getTime();
 604             final ProfileKeyCredential profileKeyCredential = profileAndCredential.getProfileKeyCredential().orNull();
 605             final SignalProfile profile = decryptProfileAndDownloadAvatar(address,
 606                     profileEntry.getProfileKey(),
 607                     profileAndCredential.getProfile());
 608             account.getProfileStore()
 609                     .updateProfile(address, profileEntry.getProfileKey(), now, profile, profileKeyCredential);
 610             return profileKeyCredential;
 611         }
 612         return profileEntry.getProfileKeyCredential();
 613     }
 614
 615     private SignalProfile decryptProfileAndDownloadAvatar(
 616             final SignalServiceAddress address, final ProfileKey profileKey, final SignalServiceProfile encryptedProfile
 617     ) {
 618         if (encryptedProfile.getAvatar() != null) {
 619             downloadProfileAvatar(address, encryptedProfile.getAvatar(), profileKey);
 620         }
 621
 622         return ProfileUtils.decryptProfile(profileKey, encryptedProfile);
 623     }
 624
 625     private Optional<SignalServiceAttachmentStream> createGroupAvatarAttachment(GroupId groupId) throws IOException {
 626         final StreamDetails streamDetails = avatarStore.retrieveGroupAvatar(groupId);
 627         if (streamDetails == null) {
 628             return Optional.absent();
 629         }
 630
 631         return Optional.of(AttachmentUtils.createAttachment(streamDetails, Optional.absent()));
 632     }
 633
 634     private Optional<SignalServiceAttachmentStream> createContactAvatarAttachment(SignalServiceAddress address) throws IOException {
 635         final StreamDetails streamDetails = avatarStore.retrieveContactAvatar(address);
 636         if (streamDetails == null) {
 637             return Optional.absent();
 638         }
 639
 640         return Optional.of(AttachmentUtils.createAttachment(streamDetails, Optional.absent()));
 641     }
 642
 643     private GroupInfo getGroupForSending(GroupId groupId) throws GroupNotFoundException, NotAGroupMemberException {
 644         GroupInfo g = getGroup(groupId);
 645         if (g == null) {
 646             throw new GroupNotFoundException(groupId);
 647         }
 648         if (!g.isMember(account.getSelfAddress())) {
 649             throw new NotAGroupMemberException(groupId, g.getTitle());
 650         }
 651         return g;
 652     }
 653
 654     private GroupInfo getGroupForUpdating(GroupId groupId) throws GroupNotFoundException, NotAGroupMemberException {
 655         GroupInfo g = getGroup(groupId);
 656         if (g == null) {
 657             throw new GroupNotFoundException(groupId);
 658         }
 659         if (!g.isMember(account.getSelfAddress()) && !g.isPendingMember(account.getSelfAddress())) {
 660             throw new NotAGroupMemberException(groupId, g.getTitle());
 661         }
 662         return g;
 663     }
 664
 665     public List<GroupInfo> getGroups() {
 666         return account.getGroupStore().getGroups();
 667     }
 668
 669     public Pair<Long, List<SendMessageResult>> sendGroupMessage(
 670             String messageText, List<String> attachments, GroupId groupId
 671     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 672         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 673                 .withBody(messageText);
 674         if (attachments != null) {
 675             messageBuilder.withAttachments(AttachmentUtils.getSignalServiceAttachments(attachments));
 676         }
 677
 678         return sendGroupMessage(messageBuilder, groupId);
 679     }
 680
 681     public Pair<Long, List<SendMessageResult>> sendGroupMessageReaction(
 682             String emoji, boolean remove, String targetAuthor, long targetSentTimestamp, GroupId groupId
 683     ) throws IOException, InvalidNumberException, NotAGroupMemberException, GroupNotFoundException {
 684         SignalServiceDataMessage.Reaction reaction = new SignalServiceDataMessage.Reaction(emoji,
 685                 remove,
 686                 canonicalizeAndResolveSignalServiceAddress(targetAuthor),
 687                 targetSentTimestamp);
 688         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 689                 .withReaction(reaction);
 690
 691         return sendGroupMessage(messageBuilder, groupId);
 692     }
 693
 694     public Pair<Long, List<SendMessageResult>> sendGroupMessage(
 695             SignalServiceDataMessage.Builder messageBuilder, GroupId groupId
 696     ) throws IOException, GroupNotFoundException, NotAGroupMemberException {
 697         final GroupInfo g = getGroupForSending(groupId);
 698
 699         GroupUtils.setGroupContext(messageBuilder, g);
 700         messageBuilder.withExpiration(g.getMessageExpirationTime());
 701
 702         return sendMessage(messageBuilder, g.getMembersWithout(account.getSelfAddress()));
 703     }
 704
 705     public Pair<Long, List<SendMessageResult>> sendQuitGroupMessage(GroupId groupId) throws GroupNotFoundException, IOException, NotAGroupMemberException {
 706         SignalServiceDataMessage.Builder messageBuilder;
 707
 708         final GroupInfo g = getGroupForUpdating(groupId);
 709         if (g instanceof GroupInfoV1) {
 710             GroupInfoV1 groupInfoV1 = (GroupInfoV1) g;
 711             SignalServiceGroup group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.QUIT)
 712                     .withId(groupId.serialize())
 713                     .build();
 714             messageBuilder = SignalServiceDataMessage.newBuilder().asGroupMessage(group);
 715             groupInfoV1.removeMember(account.getSelfAddress());
 716             account.getGroupStore().updateGroup(groupInfoV1);
 717         } else {
 718             final GroupInfoV2 groupInfoV2 = (GroupInfoV2) g;
 719             final Pair<DecryptedGroup, GroupChange> groupGroupChangePair = groupHelper.leaveGroup(groupInfoV2);
 720             groupInfoV2.setGroup(groupGroupChangePair.first());
 721             messageBuilder = getGroupUpdateMessageBuilder(groupInfoV2, groupGroupChangePair.second().toByteArray());
 722             account.getGroupStore().updateGroup(groupInfoV2);
 723         }
 724
 725         return sendMessage(messageBuilder, g.getMembersWithout(account.getSelfAddress()));
 726     }
 727
 728     public Pair<GroupId, List<SendMessageResult>> updateGroup(
 729             GroupId groupId, String name, List<String> members, File avatarFile
 730     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, InvalidNumberException, NotAGroupMemberException {
 731         return sendUpdateGroupMessage(groupId,
 732                 name,
 733                 members == null ? null : getSignalServiceAddresses(members),
 734                 avatarFile);
 735     }
 736
 737     private Pair<GroupId, List<SendMessageResult>> sendUpdateGroupMessage(
 738             GroupId groupId, String name, Collection<SignalServiceAddress> members, File avatarFile
 739     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 740         GroupInfo g;
 741         SignalServiceDataMessage.Builder messageBuilder;
 742         if (groupId == null) {
 743             // Create new group
 744             GroupInfoV2 gv2 = groupHelper.createGroupV2(name == null ? "" : name,
 745                     members == null ? List.of() : members,
 746                     avatarFile);
 747             if (gv2 == null) {
 748                 GroupInfoV1 gv1 = new GroupInfoV1(GroupIdV1.createRandom());
 749                 gv1.addMembers(List.of(account.getSelfAddress()));
 750                 updateGroupV1(gv1, name, members, avatarFile);
 751                 messageBuilder = getGroupUpdateMessageBuilder(gv1);
 752                 g = gv1;
 753             } else {
 754                 if (avatarFile != null) {
 755                     avatarStore.storeGroupAvatar(gv2.getGroupId(),
 756                             outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
 757                 }
 758                 messageBuilder = getGroupUpdateMessageBuilder(gv2, null);
 759                 g = gv2;
 760             }
 761         } else {
 762             GroupInfo group = getGroupForUpdating(groupId);
 763             if (group instanceof GroupInfoV2) {
 764                 final GroupInfoV2 groupInfoV2 = (GroupInfoV2) group;
 765
 766                 Pair<Long, List<SendMessageResult>> result = null;
 767                 if (groupInfoV2.isPendingMember(getSelfAddress())) {
 768                     Pair<DecryptedGroup, GroupChange> groupGroupChangePair = groupHelper.acceptInvite(groupInfoV2);
 769                     result = sendUpdateGroupMessage(groupInfoV2,
 770                             groupGroupChangePair.first(),
 771                             groupGroupChangePair.second());
 772                 }
 773
 774                 if (members != null) {
 775                     final Set<SignalServiceAddress> newMembers = new HashSet<>(members);
 776                     newMembers.removeAll(group.getMembers()
 777                             .stream()
 778                             .map(this::resolveSignalServiceAddress)
 779                             .collect(Collectors.toSet()));
 780                     if (newMembers.size() > 0) {
 781                         Pair<DecryptedGroup, GroupChange> groupGroupChangePair = groupHelper.updateGroupV2(groupInfoV2,
 782                                 newMembers);
 783                         result = sendUpdateGroupMessage(groupInfoV2,
 784                                 groupGroupChangePair.first(),
 785                                 groupGroupChangePair.second());
 786                     }
 787                 }
 788                 if (result == null || name != null || avatarFile != null) {
 789                     Pair<DecryptedGroup, GroupChange> groupGroupChangePair = groupHelper.updateGroupV2(groupInfoV2,
 790                             name,
 791                             avatarFile);
 792                     if (avatarFile != null) {
 793                         avatarStore.storeGroupAvatar(groupInfoV2.getGroupId(),
 794                                 outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
 795                     }
 796                     result = sendUpdateGroupMessage(groupInfoV2,
 797                             groupGroupChangePair.first(),
 798                             groupGroupChangePair.second());
 799                 }
 800
 801                 return new Pair<>(group.getGroupId(), result.second());
 802             } else {
 803                 GroupInfoV1 gv1 = (GroupInfoV1) group;
 804                 updateGroupV1(gv1, name, members, avatarFile);
 805                 messageBuilder = getGroupUpdateMessageBuilder(gv1);
 806                 g = gv1;
 807             }
 808         }
 809
 810         account.getGroupStore().updateGroup(g);
 811
 812         final Pair<Long, List<SendMessageResult>> result = sendMessage(messageBuilder,
 813                 g.getMembersIncludingPendingWithout(account.getSelfAddress()));
 814         return new Pair<>(g.getGroupId(), result.second());
 815     }
 816
 817     private void updateGroupV1(
 818             final GroupInfoV1 g,
 819             final String name,
 820             final Collection<SignalServiceAddress> members,
 821             final File avatarFile
 822     ) throws IOException {
 823         if (name != null) {
 824             g.name = name;
 825         }
 826
 827         if (members != null) {
 828             final Set<String> newE164Members = new HashSet<>();
 829             for (SignalServiceAddress member : members) {
 830                 if (g.isMember(member) || !member.getNumber().isPresent()) {
 831                     continue;
 832                 }
 833                 newE164Members.add(member.getNumber().get());
 834             }
 835
 836             final Map<String, UUID> registeredUsers = getRegisteredUsers(newE164Members);
 837             if (registeredUsers.size() != newE164Members.size()) {
 838                 // Some of the new members are not registered on Signal
 839                 newE164Members.removeAll(registeredUsers.keySet());
 840                 throw new IOException("Failed to add members "
 841                         + String.join(", ", newE164Members)
 842                         + " to group: Not registered on Signal");
 843             }
 844
 845             g.addMembers(members);
 846         }
 847
 848         if (avatarFile != null) {
 849             avatarStore.storeGroupAvatar(g.getGroupId(),
 850                     outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
 851         }
 852     }
 853
 854     public Pair<GroupId, List<SendMessageResult>> joinGroup(
 855             GroupInviteLinkUrl inviteLinkUrl
 856     ) throws IOException, GroupLinkNotActiveException {
 857         return sendJoinGroupMessage(inviteLinkUrl);
 858     }
 859
 860     private Pair<GroupId, List<SendMessageResult>> sendJoinGroupMessage(
 861             GroupInviteLinkUrl inviteLinkUrl
 862     ) throws IOException, GroupLinkNotActiveException {
 863         final DecryptedGroupJoinInfo groupJoinInfo = groupHelper.getDecryptedGroupJoinInfo(inviteLinkUrl.getGroupMasterKey(),
 864                 inviteLinkUrl.getPassword());
 865         final GroupChange groupChange = groupHelper.joinGroup(inviteLinkUrl.getGroupMasterKey(),
 866                 inviteLinkUrl.getPassword(),
 867                 groupJoinInfo);
 868         final GroupInfoV2 group = getOrMigrateGroup(inviteLinkUrl.getGroupMasterKey(),
 869                 groupJoinInfo.getRevision() + 1,
 870                 groupChange.toByteArray());
 871
 872         if (group.getGroup() == null) {
 873             // Only requested member, can't send update to group members
 874             return new Pair<>(group.getGroupId(), List.of());
 875         }
 876
 877         final Pair<Long, List<SendMessageResult>> result = sendUpdateGroupMessage(group, group.getGroup(), groupChange);
 878
 879         return new Pair<>(group.getGroupId(), result.second());
 880     }
 881
 882     private static int currentTimeDays() {
 883         return (int) TimeUnit.MILLISECONDS.toDays(System.currentTimeMillis());
 884     }
 885
 886     private GroupsV2AuthorizationString getGroupAuthForToday(
 887             final GroupSecretParams groupSecretParams
 888     ) throws IOException {
 889         final int today = currentTimeDays();
 890         // Returns credentials for the next 7 days
 891         final HashMap<Integer, AuthCredentialResponse> credentials = groupsV2Api.getCredentials(today);
 892         // TODO cache credentials until they expire
 893         AuthCredentialResponse authCredentialResponse = credentials.get(today);
 894         try {
 895             return groupsV2Api.getGroupsV2AuthorizationString(account.getUuid(),
 896                     today,
 897                     groupSecretParams,
 898                     authCredentialResponse);
 899         } catch (VerificationFailedException e) {
 900             throw new IOException(e);
 901         }
 902     }
 903
 904     private Pair<Long, List<SendMessageResult>> sendUpdateGroupMessage(
 905             GroupInfoV2 group, DecryptedGroup newDecryptedGroup, GroupChange groupChange
 906     ) throws IOException {
 907         group.setGroup(newDecryptedGroup);
 908         final SignalServiceDataMessage.Builder messageBuilder = getGroupUpdateMessageBuilder(group,
 909                 groupChange.toByteArray());
 910         account.getGroupStore().updateGroup(group);
 911         return sendMessage(messageBuilder, group.getMembersIncludingPendingWithout(account.getSelfAddress()));
 912     }
 913
 914     Pair<Long, List<SendMessageResult>> sendGroupInfoMessage(
 915             GroupIdV1 groupId, SignalServiceAddress recipient
 916     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, AttachmentInvalidException {
 917         GroupInfoV1 g;
 918         GroupInfo group = getGroupForSending(groupId);
 919         if (!(group instanceof GroupInfoV1)) {
 920             throw new RuntimeException("Received an invalid group request for a v2 group!");
 921         }
 922         g = (GroupInfoV1) group;
 923
 924         if (!g.isMember(recipient)) {
 925             throw new NotAGroupMemberException(groupId, g.name);
 926         }
 927
 928         SignalServiceDataMessage.Builder messageBuilder = getGroupUpdateMessageBuilder(g);
 929
 930         // Send group message only to the recipient who requested it
 931         return sendMessage(messageBuilder, List.of(recipient));
 932     }
 933
 934     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfoV1 g) throws AttachmentInvalidException {
 935         SignalServiceGroup.Builder group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.UPDATE)
 936                 .withId(g.getGroupId().serialize())
 937                 .withName(g.name)
 938                 .withMembers(new ArrayList<>(g.getMembers()));
 939
 940         try {
 941             final Optional<SignalServiceAttachmentStream> attachment = createGroupAvatarAttachment(g.getGroupId());
 942             if (attachment.isPresent()) {
 943                 group.withAvatar(attachment.get());
 944             }
 945         } catch (IOException e) {
 946             throw new AttachmentInvalidException(g.getGroupId().toBase64(), e);
 947         }
 948
 949         return SignalServiceDataMessage.newBuilder()
 950                 .asGroupMessage(group.build())
 951                 .withExpiration(g.getMessageExpirationTime());
 952     }
 953
 954     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfoV2 g, byte[] signedGroupChange) {
 955         SignalServiceGroupV2.Builder group = SignalServiceGroupV2.newBuilder(g.getMasterKey())
 956                 .withRevision(g.getGroup().getRevision())
 957                 .withSignedGroupChange(signedGroupChange);
 958         return SignalServiceDataMessage.newBuilder()
 959                 .asGroupMessage(group.build())
 960                 .withExpiration(g.getMessageExpirationTime());
 961     }
 962
 963     Pair<Long, List<SendMessageResult>> sendGroupInfoRequest(
 964             GroupIdV1 groupId, SignalServiceAddress recipient
 965     ) throws IOException {
 966         SignalServiceGroup.Builder group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.REQUEST_INFO)
 967                 .withId(groupId.serialize());
 968
 969         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 970                 .asGroupMessage(group.build());
 971
 972         // Send group info request message to the recipient who sent us a message with this groupId
 973         return sendMessage(messageBuilder, List.of(recipient));
 974     }
 975
 976     void sendReceipt(
 977             SignalServiceAddress remoteAddress, long messageId
 978     ) throws IOException, UntrustedIdentityException {
 979         SignalServiceReceiptMessage receiptMessage = new SignalServiceReceiptMessage(SignalServiceReceiptMessage.Type.DELIVERY,
 980                 List.of(messageId),
 981                 System.currentTimeMillis());
 982
 983         createMessageSender().sendReceipt(remoteAddress,
 984                 unidentifiedAccessHelper.getAccessFor(remoteAddress),
 985                 receiptMessage);
 986     }
 987
 988     public Pair<Long, List<SendMessageResult>> sendMessage(
 989             String messageText, List<String> attachments, List<String> recipients
 990     ) throws IOException, AttachmentInvalidException, InvalidNumberException {
 991         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 992                 .withBody(messageText);
 993         if (attachments != null) {
 994             List<SignalServiceAttachment> attachmentStreams = AttachmentUtils.getSignalServiceAttachments(attachments);
 995
 996             // Upload attachments here, so we only upload once even for multiple recipients
 997             SignalServiceMessageSender messageSender = createMessageSender();
 998             List<SignalServiceAttachment> attachmentPointers = new ArrayList<>(attachmentStreams.size());
 999             for (SignalServiceAttachment attachment : attachmentStreams) {
1000                 if (attachment.isStream()) {
1001                     attachmentPointers.add(messageSender.uploadAttachment(attachment.asStream()));
1002                 } else if (attachment.isPointer()) {
1003                     attachmentPointers.add(attachment.asPointer());
1004                 }
1005             }
1006
1007             messageBuilder.withAttachments(attachmentPointers);
1008         }
1009         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
1010     }
1011
1012     public Pair<Long, SendMessageResult> sendSelfMessage(
1013             String messageText, List<String> attachments
1014     ) throws IOException, AttachmentInvalidException {
1015         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
1016                 .withBody(messageText);
1017         if (attachments != null) {
1018             messageBuilder.withAttachments(AttachmentUtils.getSignalServiceAttachments(attachments));
1019         }
1020         return sendSelfMessage(messageBuilder);
1021     }
1022
1023     public Pair<Long, List<SendMessageResult>> sendMessageReaction(
1024             String emoji, boolean remove, String targetAuthor, long targetSentTimestamp, List<String> recipients
1025     ) throws IOException, InvalidNumberException {
1026         SignalServiceDataMessage.Reaction reaction = new SignalServiceDataMessage.Reaction(emoji,
1027                 remove,
1028                 canonicalizeAndResolveSignalServiceAddress(targetAuthor),
1029                 targetSentTimestamp);
1030         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
1031                 .withReaction(reaction);
1032         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
1033     }
1034
1035     public Pair<Long, List<SendMessageResult>> sendEndSessionMessage(List<String> recipients) throws IOException, InvalidNumberException {
1036         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder().asEndSessionMessage();
1037
1038         final Collection<SignalServiceAddress> signalServiceAddresses = getSignalServiceAddresses(recipients);
1039         try {
1040             return sendMessage(messageBuilder, signalServiceAddresses);
1041         } catch (Exception e) {
1042             for (SignalServiceAddress address : signalServiceAddresses) {
1043                 handleEndSession(address);
1044             }
1045             account.save();
1046             throw e;
1047         }
1048     }
1049
1050     public String getContactName(String number) throws InvalidNumberException {
1051         ContactInfo contact = account.getContactStore().getContact(canonicalizeAndResolveSignalServiceAddress(number));
1052         if (contact == null) {
1053             return "";
1054         } else {
1055             return contact.name;
1056         }
1057     }
1058
1059     public void setContactName(String number, String name) throws InvalidNumberException {
1060         final SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(number);
1061         ContactInfo contact = account.getContactStore().getContact(address);
1062         if (contact == null) {
1063             contact = new ContactInfo(address);
1064         }
1065         contact.name = name;
1066         account.getContactStore().updateContact(contact);
1067         account.save();
1068     }
1069
1070     public void setContactBlocked(String number, boolean blocked) throws InvalidNumberException {
1071         setContactBlocked(canonicalizeAndResolveSignalServiceAddress(number), blocked);
1072     }
1073
1074     private void setContactBlocked(SignalServiceAddress address, boolean blocked) {
1075         ContactInfo contact = account.getContactStore().getContact(address);
1076         if (contact == null) {
1077             contact = new ContactInfo(address);
1078         }
1079         contact.blocked = blocked;
1080         account.getContactStore().updateContact(contact);
1081         account.save();
1082     }
1083
1084     public void setGroupBlocked(final GroupId groupId, final boolean blocked) throws GroupNotFoundException {
1085         GroupInfo group = getGroup(groupId);
1086         if (group == null) {
1087             throw new GroupNotFoundException(groupId);
1088         }
1089
1090         group.setBlocked(blocked);
1091         account.getGroupStore().updateGroup(group);
1092         account.save();
1093     }
1094
1095     /**
1096      * Change the expiration timer for a contact
1097      */
1098     public void setExpirationTimer(SignalServiceAddress address, int messageExpirationTimer) throws IOException {
1099         ContactInfo contact = account.getContactStore().getContact(address);
1100         contact.messageExpirationTime = messageExpirationTimer;
1101         account.getContactStore().updateContact(contact);
1102         sendExpirationTimerUpdate(address);
1103         account.save();
1104     }
1105
1106     private void sendExpirationTimerUpdate(SignalServiceAddress address) throws IOException {
1107         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
1108                 .asExpirationUpdate();
1109         sendMessage(messageBuilder, List.of(address));
1110     }
1111
1112     /**
1113      * Change the expiration timer for a contact
1114      */
1115     public void setExpirationTimer(
1116             String number, int messageExpirationTimer
1117     ) throws IOException, InvalidNumberException {
1118         SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(number);
1119         setExpirationTimer(address, messageExpirationTimer);
1120     }
1121
1122     /**
1123      * Change the expiration timer for a group
1124      */
1125     public void setExpirationTimer(GroupId groupId, int messageExpirationTimer) {
1126         GroupInfo g = getGroup(groupId);
1127         if (g instanceof GroupInfoV1) {
1128             GroupInfoV1 groupInfoV1 = (GroupInfoV1) g;
1129             groupInfoV1.messageExpirationTime = messageExpirationTimer;
1130             account.getGroupStore().updateGroup(groupInfoV1);
1131         } else {
1132             throw new RuntimeException("TODO Not implemented!");
1133         }
1134     }
1135
1136     /**
1137      * Upload the sticker pack from path.
1138      *
1139      * @param path Path can be a path to a manifest.json file or to a zip file that contains a manifest.json file
1140      * @return if successful, returns the URL to install the sticker pack in the signal app
1141      */
1142     public String uploadStickerPack(File path) throws IOException, StickerPackInvalidException {
1143         SignalServiceStickerManifestUpload manifest = StickerUtils.getSignalServiceStickerManifestUpload(path);
1144
1145         SignalServiceMessageSender messageSender = createMessageSender();
1146
1147         byte[] packKey = KeyUtils.createStickerUploadKey();
1148         String packId = messageSender.uploadStickerManifest(manifest, packKey);
1149
1150         Sticker sticker = new Sticker(Hex.fromStringCondensed(packId), packKey);
1151         account.getStickerStore().updateSticker(sticker);
1152         account.save();
1153
1154         try {
1155             return new URI("https",
1156                     "signal.art",
1157                     "/addstickers/",
1158                     "pack_id=" + URLEncoder.encode(packId, StandardCharsets.UTF_8) + "&pack_key=" + URLEncoder.encode(
1159                             Hex.toStringCondensed(packKey),
1160                             StandardCharsets.UTF_8)).toString();
1161         } catch (URISyntaxException e) {
1162             throw new AssertionError(e);
1163         }
1164     }
1165
1166     void requestSyncGroups() throws IOException {
1167         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1168                 .setType(SignalServiceProtos.SyncMessage.Request.Type.GROUPS)
1169                 .build();
1170         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1171         try {
1172             sendSyncMessage(message);
1173         } catch (UntrustedIdentityException e) {
1174             throw new AssertionError(e);
1175         }
1176     }
1177
1178     void requestSyncContacts() throws IOException {
1179         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1180                 .setType(SignalServiceProtos.SyncMessage.Request.Type.CONTACTS)
1181                 .build();
1182         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1183         try {
1184             sendSyncMessage(message);
1185         } catch (UntrustedIdentityException e) {
1186             throw new AssertionError(e);
1187         }
1188     }
1189
1190     void requestSyncBlocked() throws IOException {
1191         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1192                 .setType(SignalServiceProtos.SyncMessage.Request.Type.BLOCKED)
1193                 .build();
1194         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1195         try {
1196             sendSyncMessage(message);
1197         } catch (UntrustedIdentityException e) {
1198             throw new AssertionError(e);
1199         }
1200     }
1201
1202     void requestSyncConfiguration() throws IOException {
1203         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1204                 .setType(SignalServiceProtos.SyncMessage.Request.Type.CONFIGURATION)
1205                 .build();
1206         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1207         try {
1208             sendSyncMessage(message);
1209         } catch (UntrustedIdentityException e) {
1210             throw new AssertionError(e);
1211         }
1212     }
1213
1214     void requestSyncKeys() throws IOException {
1215         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1216                 .setType(SignalServiceProtos.SyncMessage.Request.Type.KEYS)
1217                 .build();
1218         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1219         try {
1220             sendSyncMessage(message);
1221         } catch (UntrustedIdentityException e) {
1222             throw new AssertionError(e);
1223         }
1224     }
1225
1226     private byte[] getSenderCertificate() {
1227         // TODO support UUID capable sender certificates
1228         // byte[] certificate = accountManager.getSenderCertificateForPhoneNumberPrivacy();
1229         byte[] certificate;
1230         try {
1231             certificate = accountManager.getSenderCertificate();
1232         } catch (IOException e) {
1233             logger.warn("Failed to get sender certificate, ignoring: {}", e.getMessage());
1234             return null;
1235         }
1236         // TODO cache for a day
1237         return certificate;
1238     }
1239
1240     private void sendSyncMessage(SignalServiceSyncMessage message) throws IOException, UntrustedIdentityException {
1241         SignalServiceMessageSender messageSender = createMessageSender();
1242         try {
1243             messageSender.sendMessage(message, unidentifiedAccessHelper.getAccessForSync());
1244         } catch (UntrustedIdentityException e) {
1245             account.getSignalProtocolStore()
1246                     .saveIdentity(resolveSignalServiceAddress(e.getIdentifier()),
1247                             e.getIdentityKey(),
1248                             TrustLevel.UNTRUSTED);
1249             throw e;
1250         }
1251     }
1252
1253     private Collection<SignalServiceAddress> getSignalServiceAddresses(Collection<String> numbers) throws InvalidNumberException {
1254         final Set<SignalServiceAddress> signalServiceAddresses = new HashSet<>(numbers.size());
1255         final Set<SignalServiceAddress> addressesMissingUuid = new HashSet<>();
1256
1257         for (String number : numbers) {
1258             final SignalServiceAddress resolvedAddress = canonicalizeAndResolveSignalServiceAddress(number);
1259             if (resolvedAddress.getUuid().isPresent()) {
1260                 signalServiceAddresses.add(resolvedAddress);
1261             } else {
1262                 addressesMissingUuid.add(resolvedAddress);
1263             }
1264         }
1265
1266         final Set<String> numbersMissingUuid = addressesMissingUuid.stream()
1267                 .map(a -> a.getNumber().get())
1268                 .collect(Collectors.toSet());
1269         Map<String, UUID> registeredUsers;
1270         try {
1271             registeredUsers = getRegisteredUsers(numbersMissingUuid);
1272         } catch (IOException e) {
1273             logger.warn("Failed to resolve uuids from server, ignoring: {}", e.getMessage());
1274             registeredUsers = Map.of();
1275         }
1276
1277         for (SignalServiceAddress address : addressesMissingUuid) {
1278             final String number = address.getNumber().get();
1279             if (registeredUsers.containsKey(number)) {
1280                 final SignalServiceAddress newAddress = resolveSignalServiceAddress(new SignalServiceAddress(
1281                         registeredUsers.get(number),
1282                         number));
1283                 signalServiceAddresses.add(newAddress);
1284             } else {
1285                 signalServiceAddresses.add(address);
1286             }
1287         }
1288
1289         return signalServiceAddresses;
1290     }
1291
1292     private Map<String, UUID> getRegisteredUsers(final Set<String> numbersMissingUuid) throws IOException {
1293         try {
1294             return accountManager.getRegisteredUsers(ServiceConfig.getIasKeyStore(),
1295                     numbersMissingUuid,
1296                     serviceEnvironmentConfig.getCdsMrenclave());
1297         } catch (Quote.InvalidQuoteFormatException | UnauthenticatedQuoteException | SignatureException | UnauthenticatedResponseException | InvalidKeyException e) {
1298             throw new IOException(e);
1299         }
1300     }
1301
1302     private Pair<Long, List<SendMessageResult>> sendMessage(
1303             SignalServiceDataMessage.Builder messageBuilder, Collection<SignalServiceAddress> recipients
1304     ) throws IOException {
1305         recipients = recipients.stream().map(this::resolveSignalServiceAddress).collect(Collectors.toSet());
1306         final long timestamp = System.currentTimeMillis();
1307         messageBuilder.withTimestamp(timestamp);
1308         getOrCreateMessagePipe();
1309         getOrCreateUnidentifiedMessagePipe();
1310         SignalServiceDataMessage message = null;
1311         try {
1312             message = messageBuilder.build();
1313             if (message.getGroupContext().isPresent()) {
1314                 try {
1315                     SignalServiceMessageSender messageSender = createMessageSender();
1316                     final boolean isRecipientUpdate = false;
1317                     List<SendMessageResult> result = messageSender.sendMessage(new ArrayList<>(recipients),
1318                             unidentifiedAccessHelper.getAccessFor(recipients),
1319                             isRecipientUpdate,
1320                             message);
1321                     for (SendMessageResult r : result) {
1322                         if (r.getIdentityFailure() != null) {
1323                             account.getSignalProtocolStore()
1324                                     .saveIdentity(r.getAddress(),
1325                                             r.getIdentityFailure().getIdentityKey(),
1326                                             TrustLevel.UNTRUSTED);
1327                         }
1328                     }
1329                     return new Pair<>(timestamp, result);
1330                 } catch (UntrustedIdentityException e) {
1331                     account.getSignalProtocolStore()
1332                             .saveIdentity(resolveSignalServiceAddress(e.getIdentifier()),
1333                                     e.getIdentityKey(),
1334                                     TrustLevel.UNTRUSTED);
1335                     return new Pair<>(timestamp, List.of());
1336                 }
1337             } else {
1338                 // Send to all individually, so sync messages are sent correctly
1339                 messageBuilder.withProfileKey(account.getProfileKey().serialize());
1340                 List<SendMessageResult> results = new ArrayList<>(recipients.size());
1341                 for (SignalServiceAddress address : recipients) {
1342                     final ContactInfo contact = account.getContactStore().getContact(address);
1343                     final int expirationTime = contact != null ? contact.messageExpirationTime : 0;
1344                     messageBuilder.withExpiration(expirationTime);
1345                     message = messageBuilder.build();
1346                     results.add(sendMessage(address, message));
1347                 }
1348                 return new Pair<>(timestamp, results);
1349             }
1350         } finally {
1351             if (message != null && message.isEndSession()) {
1352                 for (SignalServiceAddress recipient : recipients) {
1353                     handleEndSession(recipient);
1354                 }
1355             }
1356             account.save();
1357         }
1358     }
1359
1360     private Pair<Long, SendMessageResult> sendSelfMessage(
1361             SignalServiceDataMessage.Builder messageBuilder
1362     ) throws IOException {
1363         final long timestamp = System.currentTimeMillis();
1364         messageBuilder.withTimestamp(timestamp);
1365         getOrCreateMessagePipe();
1366         getOrCreateUnidentifiedMessagePipe();
1367         try {
1368             final SignalServiceAddress address = getSelfAddress();
1369
1370             final ContactInfo contact = account.getContactStore().getContact(address);
1371             final int expirationTime = contact != null ? contact.messageExpirationTime : 0;
1372             messageBuilder.withExpiration(expirationTime);
1373
1374             SignalServiceDataMessage message = messageBuilder.build();
1375             final SendMessageResult result = sendSelfMessage(message);
1376             return new Pair<>(timestamp, result);
1377         } finally {
1378             account.save();
1379         }
1380     }
1381
1382     private SendMessageResult sendSelfMessage(SignalServiceDataMessage message) throws IOException {
1383         SignalServiceMessageSender messageSender = createMessageSender();
1384
1385         SignalServiceAddress recipient = account.getSelfAddress();
1386
1387         final Optional<UnidentifiedAccessPair> unidentifiedAccess = unidentifiedAccessHelper.getAccessFor(recipient);
1388         SentTranscriptMessage transcript = new SentTranscriptMessage(Optional.of(recipient),
1389                 message.getTimestamp(),
1390                 message,
1391                 message.getExpiresInSeconds(),
1392                 Map.of(recipient, unidentifiedAccess.isPresent()),
1393                 false);
1394         SignalServiceSyncMessage syncMessage = SignalServiceSyncMessage.forSentTranscript(transcript);
1395
1396         try {
1397             long startTime = System.currentTimeMillis();
1398             messageSender.sendMessage(syncMessage, unidentifiedAccess);
1399             return SendMessageResult.success(recipient,
1400                     unidentifiedAccess.isPresent(),
1401                     false,
1402                     System.currentTimeMillis() - startTime);
1403         } catch (UntrustedIdentityException e) {
1404             account.getSignalProtocolStore()
1405                     .saveIdentity(resolveSignalServiceAddress(e.getIdentifier()),
1406                             e.getIdentityKey(),
1407                             TrustLevel.UNTRUSTED);
1408             return SendMessageResult.identityFailure(recipient, e.getIdentityKey());
1409         }
1410     }
1411
1412     private SendMessageResult sendMessage(
1413             SignalServiceAddress address, SignalServiceDataMessage message
1414     ) throws IOException {
1415         SignalServiceMessageSender messageSender = createMessageSender();
1416
1417         try {
1418             return messageSender.sendMessage(address, unidentifiedAccessHelper.getAccessFor(address), message);
1419         } catch (UntrustedIdentityException e) {
1420             account.getSignalProtocolStore()
1421                     .saveIdentity(resolveSignalServiceAddress(e.getIdentifier()),
1422                             e.getIdentityKey(),
1423                             TrustLevel.UNTRUSTED);
1424             return SendMessageResult.identityFailure(address, e.getIdentityKey());
1425         }
1426     }
1427
1428     private SignalServiceContent decryptMessage(SignalServiceEnvelope envelope) throws InvalidMetadataMessageException, ProtocolInvalidMessageException, ProtocolDuplicateMessageException, ProtocolLegacyMessageException, ProtocolInvalidKeyIdException, InvalidMetadataVersionException, ProtocolInvalidVersionException, ProtocolNoSessionException, ProtocolInvalidKeyException, SelfSendException, UnsupportedDataMessageException, org.whispersystems.libsignal.UntrustedIdentityException {
1429         SignalServiceCipher cipher = new SignalServiceCipher(account.getSelfAddress(),
1430                 account.getSignalProtocolStore(),
1431                 certificateValidator);
1432         try {
1433             return cipher.decrypt(envelope);
1434         } catch (ProtocolUntrustedIdentityException e) {
1435             if (e.getCause() instanceof org.whispersystems.libsignal.UntrustedIdentityException) {
1436                 org.whispersystems.libsignal.UntrustedIdentityException identityException = (org.whispersystems.libsignal.UntrustedIdentityException) e
1437                         .getCause();
1438                 final IdentityKey untrustedIdentity = identityException.getUntrustedIdentity();
1439                 if (untrustedIdentity != null) {
1440                     account.getSignalProtocolStore()
1441                             .saveIdentity(resolveSignalServiceAddress(identityException.getName()),
1442                                     untrustedIdentity,
1443                                     TrustLevel.UNTRUSTED);
1444                 }
1445                 throw identityException;
1446             }
1447             throw new AssertionError(e);
1448         }
1449     }
1450
1451     private void handleEndSession(SignalServiceAddress source) {
1452         account.getSignalProtocolStore().deleteAllSessions(source);
1453     }
1454
1455     private List<HandleAction> handleSignalServiceDataMessage(
1456             SignalServiceDataMessage message,
1457             boolean isSync,
1458             SignalServiceAddress source,
1459             SignalServiceAddress destination,
1460             boolean ignoreAttachments
1461     ) {
1462         List<HandleAction> actions = new ArrayList<>();
1463         if (message.getGroupContext().isPresent()) {
1464             if (message.getGroupContext().get().getGroupV1().isPresent()) {
1465                 SignalServiceGroup groupInfo = message.getGroupContext().get().getGroupV1().get();
1466                 GroupIdV1 groupId = GroupId.v1(groupInfo.getGroupId());
1467                 GroupInfo group = getGroup(groupId);
1468                 if (group == null || group instanceof GroupInfoV1) {
1469                     GroupInfoV1 groupV1 = (GroupInfoV1) group;
1470                     switch (groupInfo.getType()) {
1471                         case UPDATE: {
1472                             if (groupV1 == null) {
1473                                 groupV1 = new GroupInfoV1(groupId);
1474                             }
1475
1476                             if (groupInfo.getAvatar().isPresent()) {
1477                                 SignalServiceAttachment avatar = groupInfo.getAvatar().get();
1478                                 downloadGroupAvatar(avatar, groupV1.getGroupId());
1479                             }
1480
1481                             if (groupInfo.getName().isPresent()) {
1482                                 groupV1.name = groupInfo.getName().get();
1483                             }
1484
1485                             if (groupInfo.getMembers().isPresent()) {
1486                                 groupV1.addMembers(groupInfo.getMembers()
1487                                         .get()
1488                                         .stream()
1489                                         .map(this::resolveSignalServiceAddress)
1490                                         .collect(Collectors.toSet()));
1491                             }
1492
1493                             account.getGroupStore().updateGroup(groupV1);
1494                             break;
1495                         }
1496                         case DELIVER:
1497                             if (groupV1 == null && !isSync) {
1498                                 actions.add(new SendGroupInfoRequestAction(source, groupId));
1499                             }
1500                             break;
1501                         case QUIT: {
1502                             if (groupV1 != null) {
1503                                 groupV1.removeMember(source);
1504                                 account.getGroupStore().updateGroup(groupV1);
1505                             }
1506                             break;
1507                         }
1508                         case REQUEST_INFO:
1509                             if (groupV1 != null && !isSync) {
1510                                 actions.add(new SendGroupInfoAction(source, groupV1.getGroupId()));
1511                             }
1512                             break;
1513                     }
1514                 } else {
1515                     // Received a group v1 message for a v2 group
1516                 }
1517             }
1518             if (message.getGroupContext().get().getGroupV2().isPresent()) {
1519                 final SignalServiceGroupV2 groupContext = message.getGroupContext().get().getGroupV2().get();
1520                 final GroupMasterKey groupMasterKey = groupContext.getMasterKey();
1521
1522                 getOrMigrateGroup(groupMasterKey,
1523                         groupContext.getRevision(),
1524                         groupContext.hasSignedGroupChange() ? groupContext.getSignedGroupChange() : null);
1525             }
1526         }
1527
1528         final SignalServiceAddress conversationPartnerAddress = isSync ? destination : source;
1529         if (conversationPartnerAddress != null && message.isEndSession()) {
1530             handleEndSession(conversationPartnerAddress);
1531         }
1532         if (message.isExpirationUpdate() || message.getBody().isPresent()) {
1533             if (message.getGroupContext().isPresent()) {
1534                 if (message.getGroupContext().get().getGroupV1().isPresent()) {
1535                     SignalServiceGroup groupInfo = message.getGroupContext().get().getGroupV1().get();
1536                     GroupInfoV1 group = account.getGroupStore().getOrCreateGroupV1(GroupId.v1(groupInfo.getGroupId()));
1537                     if (group != null) {
1538                         if (group.messageExpirationTime != message.getExpiresInSeconds()) {
1539                             group.messageExpirationTime = message.getExpiresInSeconds();
1540                             account.getGroupStore().updateGroup(group);
1541                         }
1542                     }
1543                 } else if (message.getGroupContext().get().getGroupV2().isPresent()) {
1544                     // disappearing message timer already stored in the DecryptedGroup
1545                 }
1546             } else if (conversationPartnerAddress != null) {
1547                 ContactInfo contact = account.getContactStore().getContact(conversationPartnerAddress);
1548                 if (contact == null) {
1549                     contact = new ContactInfo(conversationPartnerAddress);
1550                 }
1551                 if (contact.messageExpirationTime != message.getExpiresInSeconds()) {
1552                     contact.messageExpirationTime = message.getExpiresInSeconds();
1553                     account.getContactStore().updateContact(contact);
1554                 }
1555             }
1556         }
1557         if (!ignoreAttachments) {
1558             if (message.getAttachments().isPresent()) {
1559                 for (SignalServiceAttachment attachment : message.getAttachments().get()) {
1560                     downloadAttachment(attachment);
1561                 }
1562             }
1563             if (message.getSharedContacts().isPresent()) {
1564                 for (SharedContact contact : message.getSharedContacts().get()) {
1565                     if (contact.getAvatar().isPresent()) {
1566                         downloadAttachment(contact.getAvatar().get().getAttachment());
1567                     }
1568                 }
1569             }
1570         }
1571         if (message.getProfileKey().isPresent() && message.getProfileKey().get().length == 32) {
1572             final ProfileKey profileKey;
1573             try {
1574                 profileKey = new ProfileKey(message.getProfileKey().get());
1575             } catch (InvalidInputException e) {
1576                 throw new AssertionError(e);
1577             }
1578             if (source.matches(account.getSelfAddress())) {
1579                 this.account.setProfileKey(profileKey);
1580             }
1581             this.account.getProfileStore().storeProfileKey(source, profileKey);
1582         }
1583         if (message.getPreviews().isPresent()) {
1584             final List<SignalServiceDataMessage.Preview> previews = message.getPreviews().get();
1585             for (SignalServiceDataMessage.Preview preview : previews) {
1586                 if (preview.getImage().isPresent()) {
1587                     downloadAttachment(preview.getImage().get());
1588                 }
1589             }
1590         }
1591         if (message.getQuote().isPresent()) {
1592             final SignalServiceDataMessage.Quote quote = message.getQuote().get();
1593
1594             for (SignalServiceDataMessage.Quote.QuotedAttachment quotedAttachment : quote.getAttachments()) {
1595                 final SignalServiceAttachment thumbnail = quotedAttachment.getThumbnail();
1596                 if (thumbnail != null) {
1597                     downloadAttachment(thumbnail);
1598                 }
1599             }
1600         }
1601         if (message.getSticker().isPresent()) {
1602             final SignalServiceDataMessage.Sticker messageSticker = message.getSticker().get();
1603             Sticker sticker = account.getStickerStore().getSticker(messageSticker.getPackId());
1604             if (sticker == null) {
1605                 sticker = new Sticker(messageSticker.getPackId(), messageSticker.getPackKey());
1606                 account.getStickerStore().updateSticker(sticker);
1607             }
1608         }
1609         return actions;
1610     }
1611
1612     private GroupInfoV2 getOrMigrateGroup(
1613             final GroupMasterKey groupMasterKey, final int revision, final byte[] signedGroupChange
1614     ) {
1615         final GroupSecretParams groupSecretParams = GroupSecretParams.deriveFromMasterKey(groupMasterKey);
1616
1617         GroupIdV2 groupId = GroupUtils.getGroupIdV2(groupSecretParams);
1618         GroupInfo groupInfo = getGroup(groupId);
1619         final GroupInfoV2 groupInfoV2;
1620         if (groupInfo instanceof GroupInfoV1) {
1621             // Received a v2 group message for a v1 group, we need to locally migrate the group
1622             account.getGroupStore().deleteGroup(groupInfo.getGroupId());
1623             groupInfoV2 = new GroupInfoV2(groupId, groupMasterKey);
1624             logger.info("Locally migrated group {} to group v2, id: {}",
1625                     groupInfo.getGroupId().toBase64(),
1626                     groupInfoV2.getGroupId().toBase64());
1627         } else if (groupInfo instanceof GroupInfoV2) {
1628             groupInfoV2 = (GroupInfoV2) groupInfo;
1629         } else {
1630             groupInfoV2 = new GroupInfoV2(groupId, groupMasterKey);
1631         }
1632
1633         if (groupInfoV2.getGroup() == null || groupInfoV2.getGroup().getRevision() < revision) {
1634             DecryptedGroup group = null;
1635             if (signedGroupChange != null
1636                     && groupInfoV2.getGroup() != null
1637                     && groupInfoV2.getGroup().getRevision() + 1 == revision) {
1638                 group = groupHelper.getUpdatedDecryptedGroup(groupInfoV2.getGroup(), signedGroupChange, groupMasterKey);
1639             }
1640             if (group == null) {
1641                 group = groupHelper.getDecryptedGroup(groupSecretParams);
1642             }
1643             if (group != null) {
1644                 storeProfileKeysFromMembers(group);
1645                 final String avatar = group.getAvatar();
1646                 if (avatar != null && !avatar.isEmpty()) {
1647                     downloadGroupAvatar(groupId, groupSecretParams, avatar);
1648                 }
1649             }
1650             groupInfoV2.setGroup(group);
1651             account.getGroupStore().updateGroup(groupInfoV2);
1652         }
1653
1654         return groupInfoV2;
1655     }
1656
1657     private void storeProfileKeysFromMembers(final DecryptedGroup group) {
1658         for (DecryptedMember member : group.getMembersList()) {
1659             final SignalServiceAddress address = resolveSignalServiceAddress(new SignalServiceAddress(UuidUtil.parseOrThrow(
1660                     member.getUuid().toByteArray()), null));
1661             try {
1662                 account.getProfileStore()
1663                         .storeProfileKey(address, new ProfileKey(member.getProfileKey().toByteArray()));
1664             } catch (InvalidInputException ignored) {
1665             }
1666         }
1667     }
1668
1669     private void retryFailedReceivedMessages(ReceiveMessageHandler handler, boolean ignoreAttachments) {
1670         for (CachedMessage cachedMessage : account.getMessageCache().getCachedMessages()) {
1671             retryFailedReceivedMessage(handler, ignoreAttachments, cachedMessage);
1672         }
1673     }
1674
1675     private void retryFailedReceivedMessage(
1676             final ReceiveMessageHandler handler, final boolean ignoreAttachments, final CachedMessage cachedMessage
1677     ) {
1678         SignalServiceEnvelope envelope = cachedMessage.loadEnvelope();
1679         if (envelope == null) {
1680             return;
1681         }
1682         SignalServiceContent content = null;
1683         if (!envelope.isReceipt()) {
1684             try {
1685                 content = decryptMessage(envelope);
1686             } catch (org.whispersystems.libsignal.UntrustedIdentityException e) {
1687                 return;
1688             } catch (Exception er) {
1689                 // All other errors are not recoverable, so delete the cached message
1690                 cachedMessage.delete();
1691                 return;
1692             }
1693             List<HandleAction> actions = handleMessage(envelope, content, ignoreAttachments);
1694             for (HandleAction action : actions) {
1695                 try {
1696                     action.execute(this);
1697                 } catch (Throwable e) {
1698                     logger.warn("Message action failed.", e);
1699                 }
1700             }
1701         }
1702         account.save();
1703         handler.handleMessage(envelope, content, null);
1704         cachedMessage.delete();
1705     }
1706
1707     public void receiveMessages(
1708             long timeout,
1709             TimeUnit unit,
1710             boolean returnOnTimeout,
1711             boolean ignoreAttachments,
1712             ReceiveMessageHandler handler
1713     ) throws IOException {
1714         retryFailedReceivedMessages(handler, ignoreAttachments);
1715
1716         Set<HandleAction> queuedActions = null;
1717
1718         final SignalServiceMessagePipe messagePipe = getOrCreateMessagePipe();
1719
1720         boolean hasCaughtUpWithOldMessages = false;
1721
1722         while (true) {
1723             SignalServiceEnvelope envelope;
1724             SignalServiceContent content = null;
1725             Exception exception = null;
1726             final CachedMessage[] cachedMessage = {null};
1727             try {
1728                 Optional<SignalServiceEnvelope> result = messagePipe.readOrEmpty(timeout, unit, envelope1 -> {
1729                     // store message on disk, before acknowledging receipt to the server
1730                     cachedMessage[0] = account.getMessageCache().cacheMessage(envelope1);
1731                 });
1732                 if (result.isPresent()) {
1733                     envelope = result.get();
1734                 } else {
1735                     // Received indicator that server queue is empty
1736                     hasCaughtUpWithOldMessages = true;
1737
1738                     if (queuedActions != null) {
1739                         for (HandleAction action : queuedActions) {
1740                             try {
1741                                 action.execute(this);
1742                             } catch (Throwable e) {
1743                                 logger.warn("Message action failed.", e);
1744                             }
1745                         }
1746                         account.save();
1747                         queuedActions.clear();
1748                         queuedActions = null;
1749                     }
1750
1751                     // Continue to wait another timeout for new messages
1752                     continue;
1753                 }
1754             } catch (TimeoutException e) {
1755                 if (returnOnTimeout) return;
1756                 continue;
1757             }
1758
1759             if (envelope.hasSource()) {
1760                 // Store uuid if we don't have it already
1761                 SignalServiceAddress source = envelope.getSourceAddress();
1762                 resolveSignalServiceAddress(source);
1763             }
1764             if (!envelope.isReceipt()) {
1765                 try {
1766                     content = decryptMessage(envelope);
1767                 } catch (Exception e) {
1768                     exception = e;
1769                 }
1770                 List<HandleAction> actions = handleMessage(envelope, content, ignoreAttachments);
1771                 if (hasCaughtUpWithOldMessages) {
1772                     for (HandleAction action : actions) {
1773                         try {
1774                             action.execute(this);
1775                         } catch (Throwable e) {
1776                             logger.warn("Message action failed.", e);
1777                         }
1778                     }
1779                 } else {
1780                     if (queuedActions == null) {
1781                         queuedActions = new HashSet<>();
1782                     }
1783                     queuedActions.addAll(actions);
1784                 }
1785             }
1786             account.save();
1787             if (isMessageBlocked(envelope, content)) {
1788                 logger.info("Ignoring a message from blocked user/group: {}", envelope.getTimestamp());
1789             } else if (isNotAGroupMember(envelope, content)) {
1790                 logger.info("Ignoring a message from a non group member: {}", envelope.getTimestamp());
1791             } else {
1792                 handler.handleMessage(envelope, content, exception);
1793             }
1794             if (!(exception instanceof org.whispersystems.libsignal.UntrustedIdentityException)) {
1795                 if (cachedMessage[0] != null) {
1796                     cachedMessage[0].delete();
1797                 }
1798             }
1799         }
1800     }
1801
1802     private boolean isMessageBlocked(
1803             SignalServiceEnvelope envelope, SignalServiceContent content
1804     ) {
1805         SignalServiceAddress source;
1806         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1807             source = envelope.getSourceAddress();
1808         } else if (content != null) {
1809             source = content.getSender();
1810         } else {
1811             return false;
1812         }
1813         ContactInfo sourceContact = account.getContactStore().getContact(source);
1814         if (sourceContact != null && sourceContact.blocked) {
1815             return true;
1816         }
1817
1818         if (content != null && content.getDataMessage().isPresent()) {
1819             SignalServiceDataMessage message = content.getDataMessage().get();
1820             if (message.getGroupContext().isPresent()) {
1821                 GroupId groupId = GroupUtils.getGroupId(message.getGroupContext().get());
1822                 GroupInfo group = getGroup(groupId);
1823                 if (group != null && group.isBlocked()) {
1824                     return true;
1825                 }
1826             }
1827         }
1828         return false;
1829     }
1830
1831     private boolean isNotAGroupMember(
1832             SignalServiceEnvelope envelope, SignalServiceContent content
1833     ) {
1834         SignalServiceAddress source;
1835         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1836             source = envelope.getSourceAddress();
1837         } else if (content != null) {
1838             source = content.getSender();
1839         } else {
1840             return false;
1841         }
1842
1843         if (content != null && content.getDataMessage().isPresent()) {
1844             SignalServiceDataMessage message = content.getDataMessage().get();
1845             if (message.getGroupContext().isPresent()) {
1846                 if (message.getGroupContext().get().getGroupV1().isPresent()) {
1847                     SignalServiceGroup groupInfo = message.getGroupContext().get().getGroupV1().get();
1848                     if (groupInfo.getType() == SignalServiceGroup.Type.QUIT) {
1849                         return false;
1850                     }
1851                 }
1852                 GroupId groupId = GroupUtils.getGroupId(message.getGroupContext().get());
1853                 GroupInfo group = getGroup(groupId);
1854                 if (group != null && !group.isMember(source)) {
1855                     return true;
1856                 }
1857             }
1858         }
1859         return false;
1860     }
1861
1862     private List<HandleAction> handleMessage(
1863             SignalServiceEnvelope envelope, SignalServiceContent content, boolean ignoreAttachments
1864     ) {
1865         List<HandleAction> actions = new ArrayList<>();
1866         if (content != null) {
1867             final SignalServiceAddress sender;
1868             if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1869                 sender = envelope.getSourceAddress();
1870             } else {
1871                 sender = content.getSender();
1872             }
1873             // Store uuid if we don't have it already
1874             resolveSignalServiceAddress(sender);
1875
1876             if (content.getDataMessage().isPresent()) {
1877                 SignalServiceDataMessage message = content.getDataMessage().get();
1878
1879                 if (content.isNeedsReceipt()) {
1880                     actions.add(new SendReceiptAction(sender, message.getTimestamp()));
1881                 }
1882
1883                 actions.addAll(handleSignalServiceDataMessage(message,
1884                         false,
1885                         sender,
1886                         account.getSelfAddress(),
1887                         ignoreAttachments));
1888             }
1889             if (content.getSyncMessage().isPresent()) {
1890                 account.setMultiDevice(true);
1891                 SignalServiceSyncMessage syncMessage = content.getSyncMessage().get();
1892                 if (syncMessage.getSent().isPresent()) {
1893                     SentTranscriptMessage message = syncMessage.getSent().get();
1894                     final SignalServiceAddress destination = message.getDestination().orNull();
1895                     actions.addAll(handleSignalServiceDataMessage(message.getMessage(),
1896                             true,
1897                             sender,
1898                             destination,
1899                             ignoreAttachments));
1900                 }
1901                 if (syncMessage.getRequest().isPresent()) {
1902                     RequestMessage rm = syncMessage.getRequest().get();
1903                     if (rm.isContactsRequest()) {
1904                         actions.add(SendSyncContactsAction.create());
1905                     }
1906                     if (rm.isGroupsRequest()) {
1907                         actions.add(SendSyncGroupsAction.create());
1908                     }
1909                     if (rm.isBlockedListRequest()) {
1910                         actions.add(SendSyncBlockedListAction.create());
1911                     }
1912                     // TODO Handle rm.isConfigurationRequest(); rm.isKeysRequest();
1913                 }
1914                 if (syncMessage.getGroups().isPresent()) {
1915                     File tmpFile = null;
1916                     try {
1917                         tmpFile = IOUtils.createTempFile();
1918                         final SignalServiceAttachment groupsMessage = syncMessage.getGroups().get();
1919                         try (InputStream attachmentAsStream = retrieveAttachmentAsStream(groupsMessage.asPointer(),
1920                                 tmpFile)) {
1921                             DeviceGroupsInputStream s = new DeviceGroupsInputStream(attachmentAsStream);
1922                             DeviceGroup g;
1923                             while ((g = s.read()) != null) {
1924                                 GroupInfoV1 syncGroup = account.getGroupStore()
1925                                         .getOrCreateGroupV1(GroupId.v1(g.getId()));
1926                                 if (syncGroup != null) {
1927                                     if (g.getName().isPresent()) {
1928                                         syncGroup.name = g.getName().get();
1929                                     }
1930                                     syncGroup.addMembers(g.getMembers()
1931                                             .stream()
1932                                             .map(this::resolveSignalServiceAddress)
1933                                             .collect(Collectors.toSet()));
1934                                     if (!g.isActive()) {
1935                                         syncGroup.removeMember(account.getSelfAddress());
1936                                     } else {
1937                                         // Add ourself to the member set as it's marked as active
1938                                         syncGroup.addMembers(List.of(account.getSelfAddress()));
1939                                     }
1940                                     syncGroup.blocked = g.isBlocked();
1941                                     if (g.getColor().isPresent()) {
1942                                         syncGroup.color = g.getColor().get();
1943                                     }
1944
1945                                     if (g.getAvatar().isPresent()) {
1946                                         downloadGroupAvatar(g.getAvatar().get(), syncGroup.getGroupId());
1947                                     }
1948                                     syncGroup.inboxPosition = g.getInboxPosition().orNull();
1949                                     syncGroup.archived = g.isArchived();
1950                                     account.getGroupStore().updateGroup(syncGroup);
1951                                 }
1952                             }
1953                         }
1954                     } catch (Exception e) {
1955                         logger.warn("Failed to handle received sync groups “{}”, ignoring: {}",
1956                                 tmpFile,
1957                                 e.getMessage());
1958                     } finally {
1959                         if (tmpFile != null) {
1960                             try {
1961                                 Files.delete(tmpFile.toPath());
1962                             } catch (IOException e) {
1963                                 logger.warn("Failed to delete received groups temp file “{}”, ignoring: {}",
1964                                         tmpFile,
1965                                         e.getMessage());
1966                             }
1967                         }
1968                     }
1969                 }
1970                 if (syncMessage.getBlockedList().isPresent()) {
1971                     final BlockedListMessage blockedListMessage = syncMessage.getBlockedList().get();
1972                     for (SignalServiceAddress address : blockedListMessage.getAddresses()) {
1973                         setContactBlocked(resolveSignalServiceAddress(address), true);
1974                     }
1975                     for (GroupId groupId : blockedListMessage.getGroupIds()
1976                             .stream()
1977                             .map(GroupId::unknownVersion)
1978                             .collect(Collectors.toSet())) {
1979                         try {
1980                             setGroupBlocked(groupId, true);
1981                         } catch (GroupNotFoundException e) {
1982                             logger.warn("BlockedListMessage contained groupID that was not found in GroupStore: {}",
1983                                     groupId.toBase64());
1984                         }
1985                     }
1986                 }
1987                 if (syncMessage.getContacts().isPresent()) {
1988                     File tmpFile = null;
1989                     try {
1990                         tmpFile = IOUtils.createTempFile();
1991                         final ContactsMessage contactsMessage = syncMessage.getContacts().get();
1992                         try (InputStream attachmentAsStream = retrieveAttachmentAsStream(contactsMessage.getContactsStream()
1993                                 .asPointer(), tmpFile)) {
1994                             DeviceContactsInputStream s = new DeviceContactsInputStream(attachmentAsStream);
1995                             if (contactsMessage.isComplete()) {
1996                                 account.getContactStore().clear();
1997                             }
1998                             DeviceContact c;
1999                             while ((c = s.read()) != null) {
2000                                 if (c.getAddress().matches(account.getSelfAddress()) && c.getProfileKey().isPresent()) {
2001                                     account.setProfileKey(c.getProfileKey().get());
2002                                 }
2003                                 final SignalServiceAddress address = resolveSignalServiceAddress(c.getAddress());
2004                                 ContactInfo contact = account.getContactStore().getContact(address);
2005                                 if (contact == null) {
2006                                     contact = new ContactInfo(address);
2007                                 }
2008                                 if (c.getName().isPresent()) {
2009                                     contact.name = c.getName().get();
2010                                 }
2011                                 if (c.getColor().isPresent()) {
2012                                     contact.color = c.getColor().get();
2013                                 }
2014                                 if (c.getProfileKey().isPresent()) {
2015                                     account.getProfileStore().storeProfileKey(address, c.getProfileKey().get());
2016                                 }
2017                                 if (c.getVerified().isPresent()) {
2018                                     final VerifiedMessage verifiedMessage = c.getVerified().get();
2019                                     account.getSignalProtocolStore()
2020                                             .setIdentityTrustLevel(verifiedMessage.getDestination(),
2021                                                     verifiedMessage.getIdentityKey(),
2022                                                     TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
2023                                 }
2024                                 if (c.getExpirationTimer().isPresent()) {
2025                                     contact.messageExpirationTime = c.getExpirationTimer().get();
2026                                 }
2027                                 contact.blocked = c.isBlocked();
2028                                 contact.inboxPosition = c.getInboxPosition().orNull();
2029                                 contact.archived = c.isArchived();
2030                                 account.getContactStore().updateContact(contact);
2031
2032                                 if (c.getAvatar().isPresent()) {
2033                                     downloadContactAvatar(c.getAvatar().get(), contact.getAddress());
2034                                 }
2035                             }
2036                         }
2037                     } catch (Exception e) {
2038                         logger.warn("Failed to handle received sync contacts “{}”, ignoring: {}",
2039                                 tmpFile,
2040                                 e.getMessage());
2041                     } finally {
2042                         if (tmpFile != null) {
2043                             try {
2044                                 Files.delete(tmpFile.toPath());
2045                             } catch (IOException e) {
2046                                 logger.warn("Failed to delete received contacts temp file “{}”, ignoring: {}",
2047                                         tmpFile,
2048                                         e.getMessage());
2049                             }
2050                         }
2051                     }
2052                 }
2053                 if (syncMessage.getVerified().isPresent()) {
2054                     final VerifiedMessage verifiedMessage = syncMessage.getVerified().get();
2055                     account.getSignalProtocolStore()
2056                             .setIdentityTrustLevel(resolveSignalServiceAddress(verifiedMessage.getDestination()),
2057                                     verifiedMessage.getIdentityKey(),
2058                                     TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
2059                 }
2060                 if (syncMessage.getStickerPackOperations().isPresent()) {
2061                     final List<StickerPackOperationMessage> stickerPackOperationMessages = syncMessage.getStickerPackOperations()
2062                             .get();
2063                     for (StickerPackOperationMessage m : stickerPackOperationMessages) {
2064                         if (!m.getPackId().isPresent()) {
2065                             continue;
2066                         }
2067                         Sticker sticker = account.getStickerStore().getSticker(m.getPackId().get());
2068                         if (sticker == null) {
2069                             if (!m.getPackKey().isPresent()) {
2070                                 continue;
2071                             }
2072                             sticker = new Sticker(m.getPackId().get(), m.getPackKey().get());
2073                         }
2074                         sticker.setInstalled(!m.getType().isPresent()
2075                                 || m.getType().get() == StickerPackOperationMessage.Type.INSTALL);
2076                         account.getStickerStore().updateSticker(sticker);
2077                     }
2078                 }
2079                 if (syncMessage.getFetchType().isPresent()) {
2080                     switch (syncMessage.getFetchType().get()) {
2081                         case LOCAL_PROFILE:
2082                             getRecipientProfile(getSelfAddress(), true);
2083                         case STORAGE_MANIFEST:
2084                             // TODO
2085                     }
2086                 }
2087                 if (syncMessage.getKeys().isPresent()) {
2088                     final KeysMessage keysMessage = syncMessage.getKeys().get();
2089                     if (keysMessage.getStorageService().isPresent()) {
2090                         final StorageKey storageKey = keysMessage.getStorageService().get();
2091                         account.setStorageKey(storageKey);
2092                     }
2093                 }
2094                 if (syncMessage.getConfiguration().isPresent()) {
2095                     // TODO
2096                 }
2097             }
2098         }
2099         return actions;
2100     }
2101
2102     private void downloadContactAvatar(SignalServiceAttachment avatar, SignalServiceAddress address) {
2103         try {
2104             avatarStore.storeContactAvatar(address, outputStream -> retrieveAttachment(avatar, outputStream));
2105         } catch (IOException e) {
2106             logger.warn("Failed to download avatar for contact {}, ignoring: {}", address, e.getMessage());
2107         }
2108     }
2109
2110     private void downloadGroupAvatar(SignalServiceAttachment avatar, GroupId groupId) {
2111         try {
2112             avatarStore.storeGroupAvatar(groupId, outputStream -> retrieveAttachment(avatar, outputStream));
2113         } catch (IOException e) {
2114             logger.warn("Failed to download avatar for group {}, ignoring: {}", groupId.toBase64(), e.getMessage());
2115         }
2116     }
2117
2118     private void downloadGroupAvatar(GroupId groupId, GroupSecretParams groupSecretParams, String cdnKey) {
2119         try {
2120             avatarStore.storeGroupAvatar(groupId,
2121                     outputStream -> retrieveGroupV2Avatar(groupSecretParams, cdnKey, outputStream));
2122         } catch (IOException e) {
2123             logger.warn("Failed to download avatar for group {}, ignoring: {}", groupId.toBase64(), e.getMessage());
2124         }
2125     }
2126
2127     private void downloadProfileAvatar(
2128             SignalServiceAddress address, String avatarPath, ProfileKey profileKey
2129     ) {
2130         try {
2131             avatarStore.storeProfileAvatar(address,
2132                     outputStream -> retrieveProfileAvatar(avatarPath, profileKey, outputStream));
2133         } catch (Throwable e) {
2134             logger.warn("Failed to download profile avatar, ignoring: {}", e.getMessage());
2135         }
2136     }
2137
2138     public File getAttachmentFile(SignalServiceAttachmentRemoteId attachmentId) {
2139         return attachmentStore.getAttachmentFile(attachmentId);
2140     }
2141
2142     private void downloadAttachment(final SignalServiceAttachment attachment) {
2143         if (!attachment.isPointer()) {
2144             logger.warn("Invalid state, can't store an attachment stream.");
2145         }
2146
2147         SignalServiceAttachmentPointer pointer = attachment.asPointer();
2148         if (pointer.getPreview().isPresent()) {
2149             final byte[] preview = pointer.getPreview().get();
2150             try {
2151                 attachmentStore.storeAttachmentPreview(pointer.getRemoteId(),
2152                         outputStream -> outputStream.write(preview, 0, preview.length));
2153             } catch (IOException e) {
2154                 logger.warn("Failed to download attachment preview, ignoring: {}", e.getMessage());
2155             }
2156         }
2157
2158         try {
2159             attachmentStore.storeAttachment(pointer.getRemoteId(),
2160                     outputStream -> retrieveAttachmentPointer(pointer, outputStream));
2161         } catch (IOException e) {
2162             logger.warn("Failed to download attachment ({}), ignoring: {}", pointer.getRemoteId(), e.getMessage());
2163         }
2164     }
2165
2166     private void retrieveGroupV2Avatar(
2167             GroupSecretParams groupSecretParams, String cdnKey, OutputStream outputStream
2168     ) throws IOException {
2169         GroupsV2Operations.GroupOperations groupOperations = groupsV2Operations.forGroup(groupSecretParams);
2170
2171         File tmpFile = IOUtils.createTempFile();
2172         try (InputStream input = messageReceiver.retrieveGroupsV2ProfileAvatar(cdnKey,
2173                 tmpFile,
2174                 ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
2175             byte[] encryptedData = IOUtils.readFully(input);
2176
2177             byte[] decryptedData = groupOperations.decryptAvatar(encryptedData);
2178             outputStream.write(decryptedData);
2179         } finally {
2180             try {
2181                 Files.delete(tmpFile.toPath());
2182             } catch (IOException e) {
2183                 logger.warn("Failed to delete received group avatar temp file “{}”, ignoring: {}",
2184                         tmpFile,
2185                         e.getMessage());
2186             }
2187         }
2188     }
2189
2190     private void retrieveProfileAvatar(
2191             String avatarPath, ProfileKey profileKey, OutputStream outputStream
2192     ) throws IOException {
2193         File tmpFile = IOUtils.createTempFile();
2194         try (InputStream input = messageReceiver.retrieveProfileAvatar(avatarPath,
2195                 tmpFile,
2196                 profileKey,
2197                 ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
2198             // Use larger buffer size to prevent AssertionError: Need: 12272 but only have: 8192 ...
2199             IOUtils.copyStream(input, outputStream, (int) ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE);
2200         } finally {
2201             try {
2202                 Files.delete(tmpFile.toPath());
2203             } catch (IOException e) {
2204                 logger.warn("Failed to delete received profile avatar temp file “{}”, ignoring: {}",
2205                         tmpFile,
2206                         e.getMessage());
2207             }
2208         }
2209     }
2210
2211     private void retrieveAttachment(
2212             final SignalServiceAttachment attachment, final OutputStream outputStream
2213     ) throws IOException {
2214         if (attachment.isPointer()) {
2215             SignalServiceAttachmentPointer pointer = attachment.asPointer();
2216             retrieveAttachmentPointer(pointer, outputStream);
2217         } else {
2218             SignalServiceAttachmentStream stream = attachment.asStream();
2219             IOUtils.copyStream(stream.getInputStream(), outputStream);
2220         }
2221     }
2222
2223     private void retrieveAttachmentPointer(
2224             SignalServiceAttachmentPointer pointer, OutputStream outputStream
2225     ) throws IOException {
2226         File tmpFile = IOUtils.createTempFile();
2227         try (InputStream input = retrieveAttachmentAsStream(pointer, tmpFile)) {
2228             IOUtils.copyStream(input, outputStream);
2229         } catch (MissingConfigurationException | InvalidMessageException e) {
2230             throw new IOException(e);
2231         } finally {
2232             try {
2233                 Files.delete(tmpFile.toPath());
2234             } catch (IOException e) {
2235                 logger.warn("Failed to delete received attachment temp file “{}”, ignoring: {}",
2236                         tmpFile,
2237                         e.getMessage());
2238             }
2239         }
2240     }
2241
2242     private InputStream retrieveAttachmentAsStream(
2243             SignalServiceAttachmentPointer pointer, File tmpFile
2244     ) throws IOException, InvalidMessageException, MissingConfigurationException {
2245         return messageReceiver.retrieveAttachment(pointer, tmpFile, ServiceConfig.MAX_ATTACHMENT_SIZE);
2246     }
2247
2248     void sendGroups() throws IOException, UntrustedIdentityException {
2249         File groupsFile = IOUtils.createTempFile();
2250
2251         try {
2252             try (OutputStream fos = new FileOutputStream(groupsFile)) {
2253                 DeviceGroupsOutputStream out = new DeviceGroupsOutputStream(fos);
2254                 for (GroupInfo record : getGroups()) {
2255                     if (record instanceof GroupInfoV1) {
2256                         GroupInfoV1 groupInfo = (GroupInfoV1) record;
2257                         out.write(new DeviceGroup(groupInfo.getGroupId().serialize(),
2258                                 Optional.fromNullable(groupInfo.name),
2259                                 new ArrayList<>(groupInfo.getMembers()),
2260                                 createGroupAvatarAttachment(groupInfo.getGroupId()),
2261                                 groupInfo.isMember(account.getSelfAddress()),
2262                                 Optional.of(groupInfo.messageExpirationTime),
2263                                 Optional.fromNullable(groupInfo.color),
2264                                 groupInfo.blocked,
2265                                 Optional.fromNullable(groupInfo.inboxPosition),
2266                                 groupInfo.archived));
2267                     }
2268                 }
2269             }
2270
2271             if (groupsFile.exists() && groupsFile.length() > 0) {
2272                 try (FileInputStream groupsFileStream = new FileInputStream(groupsFile)) {
2273                     SignalServiceAttachmentStream attachmentStream = SignalServiceAttachment.newStreamBuilder()
2274                             .withStream(groupsFileStream)
2275                             .withContentType("application/octet-stream")
2276                             .withLength(groupsFile.length())
2277                             .build();
2278
2279                     sendSyncMessage(SignalServiceSyncMessage.forGroups(attachmentStream));
2280                 }
2281             }
2282         } finally {
2283             try {
2284                 Files.delete(groupsFile.toPath());
2285             } catch (IOException e) {
2286                 logger.warn("Failed to delete groups temp file “{}”, ignoring: {}", groupsFile, e.getMessage());
2287             }
2288         }
2289     }
2290
2291     public void sendContacts() throws IOException, UntrustedIdentityException {
2292         File contactsFile = IOUtils.createTempFile();
2293
2294         try {
2295             try (OutputStream fos = new FileOutputStream(contactsFile)) {
2296                 DeviceContactsOutputStream out = new DeviceContactsOutputStream(fos);
2297                 for (ContactInfo record : account.getContactStore().getContacts()) {
2298                     VerifiedMessage verifiedMessage = null;
2299                     IdentityInfo currentIdentity = account.getSignalProtocolStore().getIdentity(record.getAddress());
2300                     if (currentIdentity != null) {
2301                         verifiedMessage = new VerifiedMessage(record.getAddress(),
2302                                 currentIdentity.getIdentityKey(),
2303                                 currentIdentity.getTrustLevel().toVerifiedState(),
2304                                 currentIdentity.getDateAdded().getTime());
2305                     }
2306
2307                     ProfileKey profileKey = account.getProfileStore().getProfileKey(record.getAddress());
2308                     out.write(new DeviceContact(record.getAddress(),
2309                             Optional.fromNullable(record.name),
2310                             createContactAvatarAttachment(record.getAddress()),
2311                             Optional.fromNullable(record.color),
2312                             Optional.fromNullable(verifiedMessage),
2313                             Optional.fromNullable(profileKey),
2314                             record.blocked,
2315                             Optional.of(record.messageExpirationTime),
2316                             Optional.fromNullable(record.inboxPosition),
2317                             record.archived));
2318                 }
2319
2320                 if (account.getProfileKey() != null) {
2321                     // Send our own profile key as well
2322                     out.write(new DeviceContact(account.getSelfAddress(),
2323                             Optional.absent(),
2324                             Optional.absent(),
2325                             Optional.absent(),
2326                             Optional.absent(),
2327                             Optional.of(account.getProfileKey()),
2328                             false,
2329                             Optional.absent(),
2330                             Optional.absent(),
2331                             false));
2332                 }
2333             }
2334
2335             if (contactsFile.exists() && contactsFile.length() > 0) {
2336                 try (FileInputStream contactsFileStream = new FileInputStream(contactsFile)) {
2337                     SignalServiceAttachmentStream attachmentStream = SignalServiceAttachment.newStreamBuilder()
2338                             .withStream(contactsFileStream)
2339                             .withContentType("application/octet-stream")
2340                             .withLength(contactsFile.length())
2341                             .build();
2342
2343                     sendSyncMessage(SignalServiceSyncMessage.forContacts(new ContactsMessage(attachmentStream, true)));
2344                 }
2345             }
2346         } finally {
2347             try {
2348                 Files.delete(contactsFile.toPath());
2349             } catch (IOException e) {
2350                 logger.warn("Failed to delete contacts temp file “{}”, ignoring: {}", contactsFile, e.getMessage());
2351             }
2352         }
2353     }
2354
2355     void sendBlockedList() throws IOException, UntrustedIdentityException {
2356         List<SignalServiceAddress> addresses = new ArrayList<>();
2357         for (ContactInfo record : account.getContactStore().getContacts()) {
2358             if (record.blocked) {
2359                 addresses.add(record.getAddress());
2360             }
2361         }
2362         List<byte[]> groupIds = new ArrayList<>();
2363         for (GroupInfo record : getGroups()) {
2364             if (record.isBlocked()) {
2365                 groupIds.add(record.getGroupId().serialize());
2366             }
2367         }
2368         sendSyncMessage(SignalServiceSyncMessage.forBlocked(new BlockedListMessage(addresses, groupIds)));
2369     }
2370
2371     private void sendVerifiedMessage(
2372             SignalServiceAddress destination, IdentityKey identityKey, TrustLevel trustLevel
2373     ) throws IOException, UntrustedIdentityException {
2374         VerifiedMessage verifiedMessage = new VerifiedMessage(destination,
2375                 identityKey,
2376                 trustLevel.toVerifiedState(),
2377                 System.currentTimeMillis());
2378         sendSyncMessage(SignalServiceSyncMessage.forVerified(verifiedMessage));
2379     }
2380
2381     public List<ContactInfo> getContacts() {
2382         return account.getContactStore().getContacts();
2383     }
2384
2385     public String getContactOrProfileName(String number) {
2386         final SignalServiceAddress address = Utils.getSignalServiceAddressFromIdentifier(number);
2387
2388         final ContactInfo contact = account.getContactStore().getContact(address);
2389         if (contact != null && !Util.isEmpty(contact.name)) {
2390             return contact.name;
2391         }
2392
2393         final SignalProfileEntry profileEntry = account.getProfileStore().getProfileEntry(address);
2394         if (profileEntry != null && profileEntry.getProfile() != null) {
2395             return profileEntry.getProfile().getName();
2396         }
2397
2398         return null;
2399     }
2400
2401     public GroupInfo getGroup(GroupId groupId) {
2402         final GroupInfo group = account.getGroupStore().getGroup(groupId);
2403         if (group instanceof GroupInfoV2 && ((GroupInfoV2) group).getGroup() == null) {
2404             final GroupSecretParams groupSecretParams = GroupSecretParams.deriveFromMasterKey(((GroupInfoV2) group).getMasterKey());
2405             ((GroupInfoV2) group).setGroup(groupHelper.getDecryptedGroup(groupSecretParams));
2406             account.getGroupStore().updateGroup(group);
2407         }
2408         return group;
2409     }
2410
2411     public List<IdentityInfo> getIdentities() {
2412         return account.getSignalProtocolStore().getIdentities();
2413     }
2414
2415     public List<IdentityInfo> getIdentities(String number) throws InvalidNumberException {
2416         return account.getSignalProtocolStore().getIdentities(canonicalizeAndResolveSignalServiceAddress(number));
2417     }
2418
2419     /**
2420      * Trust this the identity with this fingerprint
2421      *
2422      * @param name        username of the identity
2423      * @param fingerprint Fingerprint
2424      */
2425     public boolean trustIdentityVerified(String name, byte[] fingerprint) throws InvalidNumberException {
2426         SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(name);
2427         List<IdentityInfo> ids = account.getSignalProtocolStore().getIdentities(address);
2428         if (ids == null) {
2429             return false;
2430         }
2431         for (IdentityInfo id : ids) {
2432             if (!Arrays.equals(id.getIdentityKey().serialize(), fingerprint)) {
2433                 continue;
2434             }
2435
2436             account.getSignalProtocolStore()
2437                     .setIdentityTrustLevel(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
2438             try {
2439                 sendVerifiedMessage(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
2440             } catch (IOException | UntrustedIdentityException e) {
2441                 logger.warn("Failed to send verification sync message: {}", e.getMessage());
2442             }
2443             account.save();
2444             return true;
2445         }
2446         return false;
2447     }
2448
2449     /**
2450      * Trust this the identity with this safety number
2451      *
2452      * @param name         username of the identity
2453      * @param safetyNumber Safety number
2454      */
2455     public boolean trustIdentityVerifiedSafetyNumber(String name, String safetyNumber) throws InvalidNumberException {
2456         SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(name);
2457         List<IdentityInfo> ids = account.getSignalProtocolStore().getIdentities(address);
2458         if (ids == null) {
2459             return false;
2460         }
2461         for (IdentityInfo id : ids) {
2462             if (!safetyNumber.equals(computeSafetyNumber(address, id.getIdentityKey()))) {
2463                 continue;
2464             }
2465
2466             account.getSignalProtocolStore()
2467                     .setIdentityTrustLevel(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
2468             try {
2469                 sendVerifiedMessage(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
2470             } catch (IOException | UntrustedIdentityException e) {
2471                 logger.warn("Failed to send verification sync message: {}", e.getMessage());
2472             }
2473             account.save();
2474             return true;
2475         }
2476         return false;
2477     }
2478
2479     /**
2480      * Trust all keys of this identity without verification
2481      *
2482      * @param name username of the identity
2483      */
2484     public boolean trustIdentityAllKeys(String name) {
2485         SignalServiceAddress address = resolveSignalServiceAddress(name);
2486         List<IdentityInfo> ids = account.getSignalProtocolStore().getIdentities(address);
2487         if (ids == null) {
2488             return false;
2489         }
2490         for (IdentityInfo id : ids) {
2491             if (id.getTrustLevel() == TrustLevel.UNTRUSTED) {
2492                 account.getSignalProtocolStore()
2493                         .setIdentityTrustLevel(address, id.getIdentityKey(), TrustLevel.TRUSTED_UNVERIFIED);
2494                 try {
2495                     sendVerifiedMessage(address, id.getIdentityKey(), TrustLevel.TRUSTED_UNVERIFIED);
2496                 } catch (IOException | UntrustedIdentityException e) {
2497                     logger.warn("Failed to send verification sync message: {}", e.getMessage());
2498                 }
2499             }
2500         }
2501         account.save();
2502         return true;
2503     }
2504
2505     public String computeSafetyNumber(
2506             SignalServiceAddress theirAddress, IdentityKey theirIdentityKey
2507     ) {
2508         return Utils.computeSafetyNumber(ServiceConfig.capabilities.isUuid(),
2509                 account.getSelfAddress(),
2510                 getIdentityKeyPair().getPublicKey(),
2511                 theirAddress,
2512                 theirIdentityKey);
2513     }
2514
2515     public SignalServiceAddress canonicalizeAndResolveSignalServiceAddress(String identifier) throws InvalidNumberException {
2516         String canonicalizedNumber = UuidUtil.isUuid(identifier)
2517                 ? identifier
2518                 : PhoneNumberFormatter.formatNumber(identifier, account.getUsername());
2519         return resolveSignalServiceAddress(canonicalizedNumber);
2520     }
2521
2522     public SignalServiceAddress resolveSignalServiceAddress(String identifier) {
2523         SignalServiceAddress address = Utils.getSignalServiceAddressFromIdentifier(identifier);
2524
2525         return resolveSignalServiceAddress(address);
2526     }
2527
2528     public SignalServiceAddress resolveSignalServiceAddress(SignalServiceAddress address) {
2529         if (address.matches(account.getSelfAddress())) {
2530             return account.getSelfAddress();
2531         }
2532
2533         return account.getRecipientStore().resolveServiceAddress(address);
2534     }
2535
2536     @Override
2537     public void close() throws IOException {
2538         close(true);
2539     }
2540
2541     void close(boolean closeAccount) throws IOException {
2542         executor.shutdown();
2543
2544         if (messagePipe != null) {
2545             messagePipe.shutdown();
2546             messagePipe = null;
2547         }
2548
2549         if (unidentifiedMessagePipe != null) {
2550             unidentifiedMessagePipe.shutdown();
2551             unidentifiedMessagePipe = null;
2552         }
2553
2554         if (closeAccount && account != null) {
2555             account.close();
2556         }
2557         account = null;
2558     }
2559
2560     public interface ReceiveMessageHandler {
2561
2562         void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent decryptedContent, Throwable e);
2563     }
2564 }