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