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

   1 /*
   2   Copyright (C) 2015-2021 AsamK and contributors
   3
   4   This program is free software: you can redistribute it and/or modify
   5   it under the terms of the GNU General Public License as published by
   6   the Free Software Foundation, either version 3 of the License, or
   7   (at your option) any later version.
   8
   9   This program is distributed in the hope that it will be useful,
  10   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12   GNU General Public License for more details.
  13
  14   You should have received a copy of the GNU General Public License
  15   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17 package org.asamk.signal.manager;
  18
  19 import org.asamk.signal.manager.api.Device;
  20 import org.asamk.signal.manager.api.Message;
  21 import org.asamk.signal.manager.api.RecipientIdentifier;
  22 import org.asamk.signal.manager.api.SendGroupMessageResults;
  23 import org.asamk.signal.manager.api.SendMessageResults;
  24 import org.asamk.signal.manager.api.TypingAction;
  25 import org.asamk.signal.manager.config.ServiceConfig;
  26 import org.asamk.signal.manager.config.ServiceEnvironment;
  27 import org.asamk.signal.manager.config.ServiceEnvironmentConfig;
  28 import org.asamk.signal.manager.groups.GroupId;
  29 import org.asamk.signal.manager.groups.GroupIdV1;
  30 import org.asamk.signal.manager.groups.GroupInviteLinkUrl;
  31 import org.asamk.signal.manager.groups.GroupLinkState;
  32 import org.asamk.signal.manager.groups.GroupNotFoundException;
  33 import org.asamk.signal.manager.groups.GroupPermission;
  34 import org.asamk.signal.manager.groups.GroupSendingNotAllowedException;
  35 import org.asamk.signal.manager.groups.GroupUtils;
  36 import org.asamk.signal.manager.groups.LastGroupAdminException;
  37 import org.asamk.signal.manager.groups.NotAGroupMemberException;
  38 import org.asamk.signal.manager.helper.GroupHelper;
  39 import org.asamk.signal.manager.helper.GroupV2Helper;
  40 import org.asamk.signal.manager.helper.PinHelper;
  41 import org.asamk.signal.manager.helper.ProfileHelper;
  42 import org.asamk.signal.manager.helper.SendHelper;
  43 import org.asamk.signal.manager.helper.UnidentifiedAccessHelper;
  44 import org.asamk.signal.manager.jobs.Context;
  45 import org.asamk.signal.manager.jobs.Job;
  46 import org.asamk.signal.manager.jobs.RetrieveStickerPackJob;
  47 import org.asamk.signal.manager.storage.SignalAccount;
  48 import org.asamk.signal.manager.storage.groups.GroupInfo;
  49 import org.asamk.signal.manager.storage.groups.GroupInfoV1;
  50 import org.asamk.signal.manager.storage.identities.IdentityInfo;
  51 import org.asamk.signal.manager.storage.identities.TrustNewIdentity;
  52 import org.asamk.signal.manager.storage.messageCache.CachedMessage;
  53 import org.asamk.signal.manager.storage.recipients.Contact;
  54 import org.asamk.signal.manager.storage.recipients.Profile;
  55 import org.asamk.signal.manager.storage.recipients.RecipientId;
  56 import org.asamk.signal.manager.storage.stickers.Sticker;
  57 import org.asamk.signal.manager.storage.stickers.StickerPackId;
  58 import org.asamk.signal.manager.util.AttachmentUtils;
  59 import org.asamk.signal.manager.util.IOUtils;
  60 import org.asamk.signal.manager.util.KeyUtils;
  61 import org.asamk.signal.manager.util.StickerUtils;
  62 import org.asamk.signal.manager.util.Utils;
  63 import org.signal.libsignal.metadata.ProtocolInvalidMessageException;
  64 import org.signal.libsignal.metadata.ProtocolUntrustedIdentityException;
  65 import org.signal.zkgroup.InvalidInputException;
  66 import org.signal.zkgroup.profiles.ProfileKey;
  67 import org.slf4j.Logger;
  68 import org.slf4j.LoggerFactory;
  69 import org.whispersystems.libsignal.IdentityKey;
  70 import org.whispersystems.libsignal.IdentityKeyPair;
  71 import org.whispersystems.libsignal.InvalidKeyException;
  72 import org.whispersystems.libsignal.InvalidMessageException;
  73 import org.whispersystems.libsignal.ecc.ECPublicKey;
  74 import org.whispersystems.libsignal.fingerprint.Fingerprint;
  75 import org.whispersystems.libsignal.fingerprint.FingerprintParsingException;
  76 import org.whispersystems.libsignal.fingerprint.FingerprintVersionMismatchException;
  77 import org.whispersystems.libsignal.state.PreKeyRecord;
  78 import org.whispersystems.libsignal.state.SignedPreKeyRecord;
  79 import org.whispersystems.libsignal.util.Pair;
  80 import org.whispersystems.libsignal.util.guava.Optional;
  81 import org.whispersystems.signalservice.api.SignalSessionLock;
  82 import org.whispersystems.signalservice.api.crypto.UntrustedIdentityException;
  83 import org.whispersystems.signalservice.api.groupsv2.GroupLinkNotActiveException;
  84 import org.whispersystems.signalservice.api.messages.SendMessageResult;
  85 import org.whispersystems.signalservice.api.messages.SignalServiceAttachment;
  86 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentPointer;
  87 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentRemoteId;
  88 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentStream;
  89 import org.whispersystems.signalservice.api.messages.SignalServiceContent;
  90 import org.whispersystems.signalservice.api.messages.SignalServiceDataMessage;
  91 import org.whispersystems.signalservice.api.messages.SignalServiceEnvelope;
  92 import org.whispersystems.signalservice.api.messages.SignalServiceGroup;
  93 import org.whispersystems.signalservice.api.messages.SignalServiceReceiptMessage;
  94 import org.whispersystems.signalservice.api.messages.SignalServiceTypingMessage;
  95 import org.whispersystems.signalservice.api.messages.multidevice.BlockedListMessage;
  96 import org.whispersystems.signalservice.api.messages.multidevice.ContactsMessage;
  97 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContact;
  98 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsInputStream;
  99 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsOutputStream;
 100 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroup;
 101 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsInputStream;
 102 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsOutputStream;
 103 import org.whispersystems.signalservice.api.messages.multidevice.RequestMessage;
 104 import org.whispersystems.signalservice.api.messages.multidevice.SignalServiceSyncMessage;
 105 import org.whispersystems.signalservice.api.messages.multidevice.StickerPackOperationMessage;
 106 import org.whispersystems.signalservice.api.messages.multidevice.VerifiedMessage;
 107 import org.whispersystems.signalservice.api.push.SignalServiceAddress;
 108 import org.whispersystems.signalservice.api.push.exceptions.MissingConfigurationException;
 109 import org.whispersystems.signalservice.api.util.DeviceNameUtil;
 110 import org.whispersystems.signalservice.api.util.InvalidNumberException;
 111 import org.whispersystems.signalservice.api.util.PhoneNumberFormatter;
 112 import org.whispersystems.signalservice.api.websocket.WebSocketUnavailableException;
 113 import org.whispersystems.signalservice.internal.contacts.crypto.Quote;
 114 import org.whispersystems.signalservice.internal.contacts.crypto.UnauthenticatedQuoteException;
 115 import org.whispersystems.signalservice.internal.contacts.crypto.UnauthenticatedResponseException;
 116 import org.whispersystems.signalservice.internal.push.SignalServiceProtos;
 117 import org.whispersystems.signalservice.internal.util.DynamicCredentialsProvider;
 118 import org.whispersystems.signalservice.internal.util.Hex;
 119 import org.whispersystems.signalservice.internal.util.Util;
 120
 121 import java.io.Closeable;
 122 import java.io.File;
 123 import java.io.FileInputStream;
 124 import java.io.FileOutputStream;
 125 import java.io.IOException;
 126 import java.io.InputStream;
 127 import java.io.OutputStream;
 128 import java.net.URI;
 129 import java.net.URISyntaxException;
 130 import java.net.URLEncoder;
 131 import java.nio.charset.StandardCharsets;
 132 import java.nio.file.Files;
 133 import java.security.SignatureException;
 134 import java.util.ArrayList;
 135 import java.util.Arrays;
 136 import java.util.Collection;
 137 import java.util.Date;
 138 import java.util.HashMap;
 139 import java.util.HashSet;
 140 import java.util.List;
 141 import java.util.Map;
 142 import java.util.Set;
 143 import java.util.UUID;
 144 import java.util.concurrent.ExecutorService;
 145 import java.util.concurrent.Executors;
 146 import java.util.concurrent.TimeUnit;
 147 import java.util.concurrent.TimeoutException;
 148 import java.util.concurrent.locks.ReentrantLock;
 149 import java.util.function.Function;
 150 import java.util.stream.Collectors;
 151
 152 import static org.asamk.signal.manager.config.ServiceConfig.capabilities;
 153
 154 public class Manager implements Closeable {
 155
 156     private final static Logger logger = LoggerFactory.getLogger(Manager.class);
 157
 158     private final ServiceEnvironmentConfig serviceEnvironmentConfig;
 159     private final SignalDependencies dependencies;
 160
 161     private SignalAccount account;
 162
 163     private final ExecutorService executor = Executors.newCachedThreadPool();
 164
 165     private final ProfileHelper profileHelper;
 166     private final PinHelper pinHelper;
 167     private final SendHelper sendHelper;
 168     private final GroupHelper groupHelper;
 169
 170     private final AvatarStore avatarStore;
 171     private final AttachmentStore attachmentStore;
 172     private final StickerPackStore stickerPackStore;
 173     private final SignalSessionLock sessionLock = new SignalSessionLock() {
 174         private final ReentrantLock LEGACY_LOCK = new ReentrantLock();
 175
 176         @Override
 177         public Lock acquire() {
 178             LEGACY_LOCK.lock();
 179             return LEGACY_LOCK::unlock;
 180         }
 181     };
 182
 183     Manager(
 184             SignalAccount account,
 185             PathConfig pathConfig,
 186             ServiceEnvironmentConfig serviceEnvironmentConfig,
 187             String userAgent
 188     ) {
 189         this.account = account;
 190         this.serviceEnvironmentConfig = serviceEnvironmentConfig;
 191
 192         final var credentialsProvider = new DynamicCredentialsProvider(account.getUuid(),
 193                 account.getUsername(),
 194                 account.getPassword(),
 195                 account.getDeviceId());
 196         this.dependencies = new SignalDependencies(account.getSelfAddress(),
 197                 serviceEnvironmentConfig,
 198                 userAgent,
 199                 credentialsProvider,
 200                 account.getSignalProtocolStore(),
 201                 executor,
 202                 sessionLock);
 203         this.avatarStore = new AvatarStore(pathConfig.getAvatarsPath());
 204         this.attachmentStore = new AttachmentStore(pathConfig.getAttachmentsPath());
 205         this.stickerPackStore = new StickerPackStore(pathConfig.getStickerPacksPath());
 206
 207         this.pinHelper = new PinHelper(dependencies.getKeyBackupService());
 208         final var unidentifiedAccessHelper = new UnidentifiedAccessHelper(account::getProfileKey,
 209                 account.getProfileStore()::getProfileKey,
 210                 this::getRecipientProfile,
 211                 this::getSenderCertificate);
 212         this.profileHelper = new ProfileHelper(account,
 213                 dependencies,
 214                 avatarStore,
 215                 account.getProfileStore()::getProfileKey,
 216                 unidentifiedAccessHelper::getAccessFor,
 217                 dependencies::getProfileService,
 218                 dependencies::getMessageReceiver,
 219                 this::resolveSignalServiceAddress);
 220         final GroupV2Helper groupV2Helper = new GroupV2Helper(profileHelper::getRecipientProfileKeyCredential,
 221                 this::getRecipientProfile,
 222                 account::getSelfRecipientId,
 223                 dependencies.getGroupsV2Operations(),
 224                 dependencies.getGroupsV2Api(),
 225                 this::resolveSignalServiceAddress);
 226         this.sendHelper = new SendHelper(account,
 227                 dependencies,
 228                 unidentifiedAccessHelper,
 229                 this::resolveSignalServiceAddress,
 230                 this::resolveRecipient,
 231                 this::handleIdentityFailure,
 232                 this::getGroup,
 233                 this::refreshRegisteredUser);
 234         this.groupHelper = new GroupHelper(account,
 235                 dependencies,
 236                 sendHelper,
 237                 groupV2Helper,
 238                 avatarStore,
 239                 this::resolveSignalServiceAddress,
 240                 this::resolveRecipient);
 241     }
 242
 243     public String getUsername() {
 244         return account.getUsername();
 245     }
 246
 247     private SignalServiceAddress getSelfAddress() {
 248         return account.getSelfAddress();
 249     }
 250
 251     public RecipientId getSelfRecipientId() {
 252         return account.getSelfRecipientId();
 253     }
 254
 255     private IdentityKeyPair getIdentityKeyPair() {
 256         return account.getIdentityKeyPair();
 257     }
 258
 259     public int getDeviceId() {
 260         return account.getDeviceId();
 261     }
 262
 263     public static Manager init(
 264             String username,
 265             File settingsPath,
 266             ServiceEnvironment serviceEnvironment,
 267             String userAgent,
 268             final TrustNewIdentity trustNewIdentity
 269     ) throws IOException, NotRegisteredException {
 270         var pathConfig = PathConfig.createDefault(settingsPath);
 271
 272         if (!SignalAccount.userExists(pathConfig.getDataPath(), username)) {
 273             throw new NotRegisteredException();
 274         }
 275
 276         var account = SignalAccount.load(pathConfig.getDataPath(), username, true, trustNewIdentity);
 277
 278         if (!account.isRegistered()) {
 279             throw new NotRegisteredException();
 280         }
 281
 282         final var serviceEnvironmentConfig = ServiceConfig.getServiceEnvironmentConfig(serviceEnvironment, userAgent);
 283
 284         return new Manager(account, pathConfig, serviceEnvironmentConfig, userAgent);
 285     }
 286
 287     public static List<String> getAllLocalUsernames(File settingsPath) {
 288         var pathConfig = PathConfig.createDefault(settingsPath);
 289         final var dataPath = pathConfig.getDataPath();
 290         final var files = dataPath.listFiles();
 291
 292         if (files == null) {
 293             return List.of();
 294         }
 295
 296         return Arrays.stream(files)
 297                 .filter(File::isFile)
 298                 .map(File::getName)
 299                 .filter(file -> PhoneNumberFormatter.isValidNumber(file, null))
 300                 .collect(Collectors.toList());
 301     }
 302
 303     public void checkAccountState() throws IOException {
 304         if (account.getLastReceiveTimestamp() == 0) {
 305             logger.info("The Signal protocol expects that incoming messages are regularly received.");
 306         } else {
 307             var diffInMilliseconds = System.currentTimeMillis() - account.getLastReceiveTimestamp();
 308             long days = TimeUnit.DAYS.convert(diffInMilliseconds, TimeUnit.MILLISECONDS);
 309             if (days > 7) {
 310                 logger.warn(
 311                         "Messages have been last received {} days ago. The Signal protocol expects that incoming messages are regularly received.",
 312                         days);
 313             }
 314         }
 315         if (dependencies.getAccountManager().getPreKeysCount() < ServiceConfig.PREKEY_MINIMUM_COUNT) {
 316             refreshPreKeys();
 317         }
 318         if (account.getUuid() == null) {
 319             account.setUuid(dependencies.getAccountManager().getOwnUuid());
 320         }
 321         updateAccountAttributes();
 322     }
 323
 324     /**
 325      * This is used for checking a set of phone numbers for registration on Signal
 326      *
 327      * @param numbers The set of phone number in question
 328      * @return A map of numbers to canonicalized number and uuid. If a number is not registered the uuid is null.
 329      * @throws IOException if its unable to get the contacts to check if they're registered
 330      */
 331     public Map<String, Pair<String, UUID>> areUsersRegistered(Set<String> numbers) throws IOException {
 332         Map<String, String> canonicalizedNumbers = numbers.stream().collect(Collectors.toMap(n -> n, n -> {
 333             try {
 334                 return canonicalizePhoneNumber(n);
 335             } catch (InvalidNumberException e) {
 336                 return "";
 337             }
 338         }));
 339
 340         // Note "contactDetails" has no optionals. It only gives us info on users who are registered
 341         var contactDetails = getRegisteredUsers(canonicalizedNumbers.values()
 342                 .stream()
 343                 .filter(s -> !s.isEmpty())
 344                 .collect(Collectors.toSet()));
 345
 346         return numbers.stream().collect(Collectors.toMap(n -> n, n -> {
 347             final var number = canonicalizedNumbers.get(n);
 348             final var uuid = contactDetails.get(number);
 349             return new Pair<>(number.isEmpty() ? null : number, uuid);
 350         }));
 351     }
 352
 353     public void updateAccountAttributes() throws IOException {
 354         dependencies.getAccountManager()
 355                 .setAccountAttributes(account.getEncryptedDeviceName(),
 356                         null,
 357                         account.getLocalRegistrationId(),
 358                         true,
 359                         // set legacy pin only if no KBS master key is set
 360                         account.getPinMasterKey() == null ? account.getRegistrationLockPin() : null,
 361                         account.getPinMasterKey() == null ? null : account.getPinMasterKey().deriveRegistrationLock(),
 362                         account.getSelfUnidentifiedAccessKey(),
 363                         account.isUnrestrictedUnidentifiedAccess(),
 364                         capabilities,
 365                         account.isDiscoverableByPhoneNumber());
 366     }
 367
 368     /**
 369      * @param givenName  if null, the previous givenName will be kept
 370      * @param familyName if null, the previous familyName will be kept
 371      * @param about      if null, the previous about text will be kept
 372      * @param aboutEmoji if null, the previous about emoji will be kept
 373      * @param avatar     if avatar is null the image from the local avatar store is used (if present),
 374      */
 375     public void setProfile(
 376             String givenName, final String familyName, String about, String aboutEmoji, Optional<File> avatar
 377     ) throws IOException {
 378         profileHelper.setProfile(givenName, familyName, about, aboutEmoji, avatar);
 379
 380         sendSyncFetchProfileMessage();
 381     }
 382
 383     private void sendSyncFetchProfileMessage() throws IOException {
 384         sendHelper.sendSyncMessage(SignalServiceSyncMessage.forFetchLatest(SignalServiceSyncMessage.FetchType.LOCAL_PROFILE));
 385     }
 386
 387     public void unregister() throws IOException {
 388         // When setting an empty GCM id, the Signal-Server also sets the fetchesMessages property to false.
 389         // If this is the master device, other users can't send messages to this number anymore.
 390         // If this is a linked device, other users can still send messages, but this device doesn't receive them anymore.
 391         dependencies.getAccountManager().setGcmId(Optional.absent());
 392
 393         account.setRegistered(false);
 394     }
 395
 396     public void deleteAccount() throws IOException {
 397         dependencies.getAccountManager().deleteAccount();
 398
 399         account.setRegistered(false);
 400     }
 401
 402     public List<Device> getLinkedDevices() throws IOException {
 403         var devices = dependencies.getAccountManager().getDevices();
 404         account.setMultiDevice(devices.size() > 1);
 405         var identityKey = account.getIdentityKeyPair().getPrivateKey();
 406         return devices.stream().map(d -> {
 407             String deviceName = d.getName();
 408             if (deviceName != null) {
 409                 try {
 410                     deviceName = DeviceNameUtil.decryptDeviceName(deviceName, identityKey);
 411                 } catch (IOException e) {
 412                     logger.debug("Failed to decrypt device name, maybe plain text?", e);
 413                 }
 414             }
 415             return new Device(d.getId(), deviceName, d.getCreated(), d.getLastSeen());
 416         }).collect(Collectors.toList());
 417     }
 418
 419     public void removeLinkedDevices(int deviceId) throws IOException {
 420         dependencies.getAccountManager().removeDevice(deviceId);
 421         var devices = dependencies.getAccountManager().getDevices();
 422         account.setMultiDevice(devices.size() > 1);
 423     }
 424
 425     public void addDeviceLink(URI linkUri) throws IOException, InvalidKeyException {
 426         var info = DeviceLinkInfo.parseDeviceLinkUri(linkUri);
 427
 428         addDevice(info.deviceIdentifier, info.deviceKey);
 429     }
 430
 431     private void addDevice(String deviceIdentifier, ECPublicKey deviceKey) throws IOException, InvalidKeyException {
 432         var identityKeyPair = getIdentityKeyPair();
 433         var verificationCode = dependencies.getAccountManager().getNewDeviceVerificationCode();
 434
 435         dependencies.getAccountManager()
 436                 .addDevice(deviceIdentifier,
 437                         deviceKey,
 438                         identityKeyPair,
 439                         Optional.of(account.getProfileKey().serialize()),
 440                         verificationCode);
 441         account.setMultiDevice(true);
 442     }
 443
 444     public void setRegistrationLockPin(Optional<String> pin) throws IOException, UnauthenticatedResponseException {
 445         if (!account.isMasterDevice()) {
 446             throw new RuntimeException("Only master device can set a PIN");
 447         }
 448         if (pin.isPresent()) {
 449             final var masterKey = account.getPinMasterKey() != null
 450                     ? account.getPinMasterKey()
 451                     : KeyUtils.createMasterKey();
 452
 453             pinHelper.setRegistrationLockPin(pin.get(), masterKey);
 454
 455             account.setRegistrationLockPin(pin.get(), masterKey);
 456         } else {
 457             // Remove KBS Pin
 458             pinHelper.removeRegistrationLockPin();
 459
 460             account.setRegistrationLockPin(null, null);
 461         }
 462     }
 463
 464     void refreshPreKeys() throws IOException {
 465         var oneTimePreKeys = generatePreKeys();
 466         final var identityKeyPair = getIdentityKeyPair();
 467         var signedPreKeyRecord = generateSignedPreKey(identityKeyPair);
 468
 469         dependencies.getAccountManager().setPreKeys(identityKeyPair.getPublicKey(), signedPreKeyRecord, oneTimePreKeys);
 470     }
 471
 472     private List<PreKeyRecord> generatePreKeys() {
 473         final var offset = account.getPreKeyIdOffset();
 474
 475         var records = KeyUtils.generatePreKeyRecords(offset, ServiceConfig.PREKEY_BATCH_SIZE);
 476         account.addPreKeys(records);
 477
 478         return records;
 479     }
 480
 481     private SignedPreKeyRecord generateSignedPreKey(IdentityKeyPair identityKeyPair) {
 482         final var signedPreKeyId = account.getNextSignedPreKeyId();
 483
 484         var record = KeyUtils.generateSignedPreKeyRecord(identityKeyPair, signedPreKeyId);
 485         account.addSignedPreKey(record);
 486
 487         return record;
 488     }
 489
 490     public Profile getRecipientProfile(RecipientId recipientId) {
 491         return profileHelper.getRecipientProfile(recipientId);
 492     }
 493
 494     public void refreshRecipientProfile(RecipientId recipientId) {
 495         profileHelper.refreshRecipientProfile(recipientId);
 496     }
 497
 498     private Optional<SignalServiceAttachmentStream> createContactAvatarAttachment(SignalServiceAddress address) throws IOException {
 499         final var streamDetails = avatarStore.retrieveContactAvatar(address);
 500         if (streamDetails == null) {
 501             return Optional.absent();
 502         }
 503
 504         return Optional.of(AttachmentUtils.createAttachment(streamDetails, Optional.absent()));
 505     }
 506
 507     public List<GroupInfo> getGroups() {
 508         return account.getGroupStore().getGroups();
 509     }
 510
 511     public SendGroupMessageResults quitGroup(
 512             GroupId groupId, Set<RecipientIdentifier.Single> groupAdmins
 513     ) throws GroupNotFoundException, IOException, NotAGroupMemberException, LastGroupAdminException {
 514         final var newAdmins = getRecipientIds(groupAdmins);
 515         return groupHelper.quitGroup(groupId, newAdmins);
 516     }
 517
 518     public void deleteGroup(GroupId groupId) throws IOException {
 519         account.getGroupStore().deleteGroup(groupId);
 520         avatarStore.deleteGroupAvatar(groupId);
 521     }
 522
 523     public Pair<GroupId, SendGroupMessageResults> createGroup(
 524             String name, Set<RecipientIdentifier.Single> members, File avatarFile
 525     ) throws IOException, AttachmentInvalidException {
 526         return groupHelper.createGroup(name, members == null ? null : getRecipientIds(members), avatarFile);
 527     }
 528
 529     public SendGroupMessageResults updateGroup(
 530             GroupId groupId,
 531             String name,
 532             String description,
 533             Set<RecipientIdentifier.Single> members,
 534             Set<RecipientIdentifier.Single> removeMembers,
 535             Set<RecipientIdentifier.Single> admins,
 536             Set<RecipientIdentifier.Single> removeAdmins,
 537             boolean resetGroupLink,
 538             GroupLinkState groupLinkState,
 539             GroupPermission addMemberPermission,
 540             GroupPermission editDetailsPermission,
 541             File avatarFile,
 542             Integer expirationTimer,
 543             Boolean isAnnouncementGroup
 544     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException, GroupSendingNotAllowedException {
 545         return groupHelper.updateGroup(groupId,
 546                 name,
 547                 description,
 548                 members == null ? null : getRecipientIds(members),
 549                 removeMembers == null ? null : getRecipientIds(removeMembers),
 550                 admins == null ? null : getRecipientIds(admins),
 551                 removeAdmins == null ? null : getRecipientIds(removeAdmins),
 552                 resetGroupLink,
 553                 groupLinkState,
 554                 addMemberPermission,
 555                 editDetailsPermission,
 556                 avatarFile,
 557                 expirationTimer,
 558                 isAnnouncementGroup);
 559     }
 560
 561     public Pair<GroupId, SendGroupMessageResults> joinGroup(
 562             GroupInviteLinkUrl inviteLinkUrl
 563     ) throws IOException, GroupLinkNotActiveException {
 564         return groupHelper.joinGroup(inviteLinkUrl);
 565     }
 566
 567     public SendMessageResults sendMessage(
 568             SignalServiceDataMessage.Builder messageBuilder, Set<RecipientIdentifier> recipients
 569     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException {
 570         var results = new HashMap<RecipientIdentifier, List<SendMessageResult>>();
 571         long timestamp = System.currentTimeMillis();
 572         messageBuilder.withTimestamp(timestamp);
 573         for (final var recipient : recipients) {
 574             if (recipient instanceof RecipientIdentifier.Single) {
 575                 final var recipientId = resolveRecipient((RecipientIdentifier.Single) recipient);
 576                 final var result = sendHelper.sendMessage(messageBuilder, recipientId);
 577                 results.put(recipient, List.of(result));
 578             } else if (recipient instanceof RecipientIdentifier.NoteToSelf) {
 579                 final var result = sendHelper.sendSelfMessage(messageBuilder);
 580                 results.put(recipient, List.of(result));
 581             } else if (recipient instanceof RecipientIdentifier.Group) {
 582                 final var groupId = ((RecipientIdentifier.Group) recipient).groupId;
 583                 final var result = sendHelper.sendAsGroupMessage(messageBuilder, groupId);
 584                 results.put(recipient, result);
 585             }
 586         }
 587         return new SendMessageResults(timestamp, results);
 588     }
 589
 590     public void sendTypingMessage(
 591             SignalServiceTypingMessage.Action action, Set<RecipientIdentifier> recipients
 592     ) throws IOException, UntrustedIdentityException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException {
 593         final var timestamp = System.currentTimeMillis();
 594         for (var recipient : recipients) {
 595             if (recipient instanceof RecipientIdentifier.Single) {
 596                 final var message = new SignalServiceTypingMessage(action, timestamp, Optional.absent());
 597                 final var recipientId = resolveRecipient((RecipientIdentifier.Single) recipient);
 598                 sendHelper.sendTypingMessage(message, recipientId);
 599             } else if (recipient instanceof RecipientIdentifier.Group) {
 600                 final var groupId = ((RecipientIdentifier.Group) recipient).groupId;
 601                 final var message = new SignalServiceTypingMessage(action, timestamp, Optional.of(groupId.serialize()));
 602                 sendHelper.sendGroupTypingMessage(message, groupId);
 603             }
 604         }
 605     }
 606
 607     SendGroupMessageResults sendGroupInfoMessage(
 608             GroupIdV1 groupId, SignalServiceAddress recipient
 609     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, AttachmentInvalidException {
 610         final var recipientId = resolveRecipient(recipient);
 611         return groupHelper.sendGroupInfoMessage(groupId, recipientId);
 612     }
 613
 614     SendGroupMessageResults sendGroupInfoRequest(
 615             GroupIdV1 groupId, SignalServiceAddress recipient
 616     ) throws IOException {
 617         final var recipientId = resolveRecipient(recipient);
 618         return groupHelper.sendGroupInfoRequest(groupId, recipientId);
 619     }
 620
 621     public void sendReadReceipt(
 622             RecipientIdentifier.Single sender, List<Long> messageIds
 623     ) throws IOException, UntrustedIdentityException {
 624         var receiptMessage = new SignalServiceReceiptMessage(SignalServiceReceiptMessage.Type.READ,
 625                 messageIds,
 626                 System.currentTimeMillis());
 627
 628         sendHelper.sendReceiptMessage(receiptMessage, resolveRecipient(sender));
 629     }
 630
 631     public void sendViewedReceipt(
 632             RecipientIdentifier.Single sender, List<Long> messageIds
 633     ) throws IOException, UntrustedIdentityException {
 634         var receiptMessage = new SignalServiceReceiptMessage(SignalServiceReceiptMessage.Type.VIEWED,
 635                 messageIds,
 636                 System.currentTimeMillis());
 637
 638         sendHelper.sendReceiptMessage(receiptMessage, resolveRecipient(sender));
 639     }
 640
 641     void sendDeliveryReceipt(
 642             SignalServiceAddress remoteAddress, List<Long> messageIds
 643     ) throws IOException, UntrustedIdentityException {
 644         var receiptMessage = new SignalServiceReceiptMessage(SignalServiceReceiptMessage.Type.DELIVERY,
 645                 messageIds,
 646                 System.currentTimeMillis());
 647
 648         sendHelper.sendReceiptMessage(receiptMessage, resolveRecipient(remoteAddress));
 649     }
 650
 651     public SendMessageResults sendMessage(
 652             Message message, Set<RecipientIdentifier> recipients
 653     ) throws IOException, AttachmentInvalidException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException {
 654         final var messageBuilder = SignalServiceDataMessage.newBuilder();
 655         applyMessage(messageBuilder, message);
 656         return sendMessage(messageBuilder, recipients);
 657     }
 658
 659     private void applyMessage(
 660             final SignalServiceDataMessage.Builder messageBuilder, final Message message
 661     ) throws AttachmentInvalidException, IOException {
 662         messageBuilder.withBody(message.getMessageText());
 663         if (message.getAttachments() != null) {
 664             var attachmentStreams = AttachmentUtils.getSignalServiceAttachments(message.getAttachments());
 665
 666             // Upload attachments here, so we only upload once even for multiple recipients
 667             var messageSender = dependencies.getMessageSender();
 668             var attachmentPointers = new ArrayList<SignalServiceAttachment>(attachmentStreams.size());
 669             for (var attachment : attachmentStreams) {
 670                 if (attachment.isStream()) {
 671                     attachmentPointers.add(messageSender.uploadAttachment(attachment.asStream()));
 672                 } else if (attachment.isPointer()) {
 673                     attachmentPointers.add(attachment.asPointer());
 674                 }
 675             }
 676
 677             messageBuilder.withAttachments(attachmentPointers);
 678         }
 679     }
 680
 681     public SendMessageResults sendRemoteDeleteMessage(
 682             long targetSentTimestamp, Set<RecipientIdentifier> recipients
 683     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException {
 684         var delete = new SignalServiceDataMessage.RemoteDelete(targetSentTimestamp);
 685         final var messageBuilder = SignalServiceDataMessage.newBuilder().withRemoteDelete(delete);
 686         return sendMessage(messageBuilder, recipients);
 687     }
 688
 689     public SendMessageResults sendMessageReaction(
 690             String emoji,
 691             boolean remove,
 692             RecipientIdentifier.Single targetAuthor,
 693             long targetSentTimestamp,
 694             Set<RecipientIdentifier> recipients
 695     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException {
 696         var targetAuthorRecipientId = resolveRecipient(targetAuthor);
 697         var reaction = new SignalServiceDataMessage.Reaction(emoji,
 698                 remove,
 699                 resolveSignalServiceAddress(targetAuthorRecipientId),
 700                 targetSentTimestamp);
 701         final var messageBuilder = SignalServiceDataMessage.newBuilder().withReaction(reaction);
 702         return sendMessage(messageBuilder, recipients);
 703     }
 704
 705     public SendMessageResults sendEndSessionMessage(Set<RecipientIdentifier.Single> recipients) throws IOException {
 706         var messageBuilder = SignalServiceDataMessage.newBuilder().asEndSessionMessage();
 707
 708         try {
 709             return sendMessage(messageBuilder,
 710                     recipients.stream().map(RecipientIdentifier.class::cast).collect(Collectors.toSet()));
 711         } catch (GroupNotFoundException | NotAGroupMemberException | GroupSendingNotAllowedException e) {
 712             throw new AssertionError(e);
 713         } finally {
 714             for (var recipient : recipients) {
 715                 final var recipientId = resolveRecipient((RecipientIdentifier.Single) recipient);
 716                 handleEndSession(recipientId);
 717             }
 718         }
 719     }
 720
 721     void renewSession(RecipientId recipientId) throws IOException {
 722         account.getSessionStore().archiveSessions(recipientId);
 723         if (!recipientId.equals(getSelfRecipientId())) {
 724             sendHelper.sendNullMessage(recipientId);
 725         }
 726     }
 727
 728     public void setContactName(
 729             RecipientIdentifier.Single recipient, String name
 730     ) throws NotMasterDeviceException {
 731         if (!account.isMasterDevice()) {
 732             throw new NotMasterDeviceException();
 733         }
 734         final var recipientId = resolveRecipient(recipient);
 735         var contact = account.getContactStore().getContact(recipientId);
 736         final var builder = contact == null ? Contact.newBuilder() : Contact.newBuilder(contact);
 737         account.getContactStore().storeContact(recipientId, builder.withName(name).build());
 738     }
 739
 740     public void setContactBlocked(
 741             RecipientIdentifier.Single recipient, boolean blocked
 742     ) throws NotMasterDeviceException {
 743         if (!account.isMasterDevice()) {
 744             throw new NotMasterDeviceException();
 745         }
 746         setContactBlocked(resolveRecipient(recipient), blocked);
 747     }
 748
 749     private void setContactBlocked(RecipientId recipientId, boolean blocked) {
 750         var contact = account.getContactStore().getContact(recipientId);
 751         final var builder = contact == null ? Contact.newBuilder() : Contact.newBuilder(contact);
 752         // TODO cycle our profile key
 753         account.getContactStore().storeContact(recipientId, builder.withBlocked(blocked).build());
 754     }
 755
 756     public void setGroupBlocked(final GroupId groupId, final boolean blocked) throws GroupNotFoundException {
 757         var group = getGroup(groupId);
 758         if (group == null) {
 759             throw new GroupNotFoundException(groupId);
 760         }
 761
 762         group.setBlocked(blocked);
 763         // TODO cycle our profile key
 764         account.getGroupStore().updateGroup(group);
 765     }
 766
 767     /**
 768      * Change the expiration timer for a contact
 769      */
 770     public void setExpirationTimer(
 771             RecipientIdentifier.Single recipient, int messageExpirationTimer
 772     ) throws IOException {
 773         var recipientId = resolveRecipient(recipient);
 774         setExpirationTimer(recipientId, messageExpirationTimer);
 775         final var messageBuilder = SignalServiceDataMessage.newBuilder().asExpirationUpdate();
 776         try {
 777             sendMessage(messageBuilder, Set.of(recipient));
 778         } catch (NotAGroupMemberException | GroupNotFoundException | GroupSendingNotAllowedException e) {
 779             throw new AssertionError(e);
 780         }
 781     }
 782
 783     private void setExpirationTimer(RecipientId recipientId, int messageExpirationTimer) {
 784         var contact = account.getContactStore().getContact(recipientId);
 785         if (contact != null && contact.getMessageExpirationTime() == messageExpirationTimer) {
 786             return;
 787         }
 788         final var builder = contact == null ? Contact.newBuilder() : Contact.newBuilder(contact);
 789         account.getContactStore()
 790                 .storeContact(recipientId, builder.withMessageExpirationTime(messageExpirationTimer).build());
 791     }
 792
 793     /**
 794      * Upload the sticker pack from path.
 795      *
 796      * @param path Path can be a path to a manifest.json file or to a zip file that contains a manifest.json file
 797      * @return if successful, returns the URL to install the sticker pack in the signal app
 798      */
 799     public URI uploadStickerPack(File path) throws IOException, StickerPackInvalidException {
 800         var manifest = StickerUtils.getSignalServiceStickerManifestUpload(path);
 801
 802         var messageSender = dependencies.getMessageSender();
 803
 804         var packKey = KeyUtils.createStickerUploadKey();
 805         var packIdString = messageSender.uploadStickerManifest(manifest, packKey);
 806         var packId = StickerPackId.deserialize(Hex.fromStringCondensed(packIdString));
 807
 808         var sticker = new Sticker(packId, packKey);
 809         account.getStickerStore().updateSticker(sticker);
 810
 811         try {
 812             return new URI("https",
 813                     "signal.art",
 814                     "/addstickers/",
 815                     "pack_id="
 816                             + URLEncoder.encode(Hex.toStringCondensed(packId.serialize()), StandardCharsets.UTF_8)
 817                             + "&pack_key="
 818                             + URLEncoder.encode(Hex.toStringCondensed(packKey), StandardCharsets.UTF_8));
 819         } catch (URISyntaxException e) {
 820             throw new AssertionError(e);
 821         }
 822     }
 823
 824     public void requestAllSyncData() throws IOException {
 825         requestSyncGroups();
 826         requestSyncContacts();
 827         requestSyncBlocked();
 828         requestSyncConfiguration();
 829         requestSyncKeys();
 830     }
 831
 832     private void requestSyncGroups() throws IOException {
 833         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
 834                 .setType(SignalServiceProtos.SyncMessage.Request.Type.GROUPS)
 835                 .build();
 836         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
 837         sendHelper.sendSyncMessage(message);
 838     }
 839
 840     private void requestSyncContacts() throws IOException {
 841         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
 842                 .setType(SignalServiceProtos.SyncMessage.Request.Type.CONTACTS)
 843                 .build();
 844         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
 845         sendHelper.sendSyncMessage(message);
 846     }
 847
 848     private void requestSyncBlocked() throws IOException {
 849         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
 850                 .setType(SignalServiceProtos.SyncMessage.Request.Type.BLOCKED)
 851                 .build();
 852         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
 853         sendHelper.sendSyncMessage(message);
 854     }
 855
 856     private void requestSyncConfiguration() throws IOException {
 857         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
 858                 .setType(SignalServiceProtos.SyncMessage.Request.Type.CONFIGURATION)
 859                 .build();
 860         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
 861         sendHelper.sendSyncMessage(message);
 862     }
 863
 864     private void requestSyncKeys() throws IOException {
 865         var r = SignalServiceProtos.SyncMessage.Request.newBuilder()
 866                 .setType(SignalServiceProtos.SyncMessage.Request.Type.KEYS)
 867                 .build();
 868         var message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
 869         sendHelper.sendSyncMessage(message);
 870     }
 871
 872     private byte[] getSenderCertificate() {
 873         byte[] certificate;
 874         try {
 875             if (account.isPhoneNumberShared()) {
 876                 certificate = dependencies.getAccountManager().getSenderCertificate();
 877             } else {
 878                 certificate = dependencies.getAccountManager().getSenderCertificateForPhoneNumberPrivacy();
 879             }
 880         } catch (IOException e) {
 881             logger.warn("Failed to get sender certificate, ignoring: {}", e.getMessage());
 882             return null;
 883         }
 884         // TODO cache for a day
 885         return certificate;
 886     }
 887
 888     private Set<RecipientId> getRecipientIds(Collection<RecipientIdentifier.Single> recipients) {
 889         final var signalServiceAddresses = new HashSet<SignalServiceAddress>(recipients.size());
 890         final var addressesMissingUuid = new HashSet<SignalServiceAddress>();
 891
 892         for (var number : recipients) {
 893             final var resolvedAddress = resolveSignalServiceAddress(resolveRecipient(number));
 894             if (resolvedAddress.getUuid().isPresent()) {
 895                 signalServiceAddresses.add(resolvedAddress);
 896             } else {
 897                 addressesMissingUuid.add(resolvedAddress);
 898             }
 899         }
 900
 901         final var numbersMissingUuid = addressesMissingUuid.stream()
 902                 .map(a -> a.getNumber().get())
 903                 .collect(Collectors.toSet());
 904         Map<String, UUID> registeredUsers;
 905         try {
 906             registeredUsers = getRegisteredUsers(numbersMissingUuid);
 907         } catch (IOException e) {
 908             logger.warn("Failed to resolve uuids from server, ignoring: {}", e.getMessage());
 909             registeredUsers = Map.of();
 910         }
 911
 912         for (var address : addressesMissingUuid) {
 913             final var number = address.getNumber().get();
 914             if (registeredUsers.containsKey(number)) {
 915                 final var newAddress = resolveSignalServiceAddress(resolveRecipientTrusted(new SignalServiceAddress(
 916                         registeredUsers.get(number),
 917                         number)));
 918                 signalServiceAddresses.add(newAddress);
 919             } else {
 920                 signalServiceAddresses.add(address);
 921             }
 922         }
 923
 924         return signalServiceAddresses.stream().map(this::resolveRecipient).collect(Collectors.toSet());
 925     }
 926
 927     private RecipientId refreshRegisteredUser(RecipientId recipientId) throws IOException {
 928         final var address = resolveSignalServiceAddress(recipientId);
 929         if (!address.getNumber().isPresent()) {
 930             return recipientId;
 931         }
 932         final var number = address.getNumber().get();
 933         final var uuidMap = getRegisteredUsers(Set.of(number));
 934         return resolveRecipientTrusted(new SignalServiceAddress(uuidMap.getOrDefault(number, null), number));
 935     }
 936
 937     private Map<String, UUID> getRegisteredUsers(final Set<String> numbers) throws IOException {
 938         final Map<String, UUID> registeredUsers;
 939         try {
 940             registeredUsers = dependencies.getAccountManager()
 941                     .getRegisteredUsers(ServiceConfig.getIasKeyStore(),
 942                             numbers,
 943                             serviceEnvironmentConfig.getCdsMrenclave());
 944         } catch (Quote.InvalidQuoteFormatException | UnauthenticatedQuoteException | SignatureException | UnauthenticatedResponseException | InvalidKeyException e) {
 945             throw new IOException(e);
 946         }
 947
 948         // Store numbers as recipients so we have the number/uuid association
 949         registeredUsers.forEach((number, uuid) -> resolveRecipientTrusted(new SignalServiceAddress(uuid, number)));
 950
 951         return registeredUsers;
 952     }
 953
 954     public void sendTypingMessage(
 955             TypingAction action, Set<RecipientIdentifier> recipients
 956     ) throws IOException, UntrustedIdentityException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException {
 957         sendTypingMessage(action.toSignalService(), recipients);
 958     }
 959
 960     private void handleEndSession(RecipientId recipientId) {
 961         account.getSessionStore().deleteAllSessions(recipientId);
 962     }
 963
 964     private List<HandleAction> handleSignalServiceDataMessage(
 965             SignalServiceDataMessage message,
 966             boolean isSync,
 967             SignalServiceAddress source,
 968             SignalServiceAddress destination,
 969             boolean ignoreAttachments
 970     ) {
 971         var actions = new ArrayList<HandleAction>();
 972         if (message.getGroupContext().isPresent()) {
 973             if (message.getGroupContext().get().getGroupV1().isPresent()) {
 974                 var groupInfo = message.getGroupContext().get().getGroupV1().get();
 975                 var groupId = GroupId.v1(groupInfo.getGroupId());
 976                 var group = getGroup(groupId);
 977                 if (group == null || group instanceof GroupInfoV1) {
 978                     var groupV1 = (GroupInfoV1) group;
 979                     switch (groupInfo.getType()) {
 980                         case UPDATE: {
 981                             if (groupV1 == null) {
 982                                 groupV1 = new GroupInfoV1(groupId);
 983                             }
 984
 985                             if (groupInfo.getAvatar().isPresent()) {
 986                                 var avatar = groupInfo.getAvatar().get();
 987                                 downloadGroupAvatar(groupV1.getGroupId(), avatar);
 988                             }
 989
 990                             if (groupInfo.getName().isPresent()) {
 991                                 groupV1.name = groupInfo.getName().get();
 992                             }
 993
 994                             if (groupInfo.getMembers().isPresent()) {
 995                                 groupV1.addMembers(groupInfo.getMembers()
 996                                         .get()
 997                                         .stream()
 998                                         .map(this::resolveRecipient)
 999                                         .collect(Collectors.toSet()));
1000                             }
1001
1002                             account.getGroupStore().updateGroup(groupV1);
1003                             break;
1004                         }
1005                         case DELIVER:
1006                             if (groupV1 == null && !isSync) {
1007                                 actions.add(new SendGroupInfoRequestAction(source, groupId));
1008                             }
1009                             break;
1010                         case QUIT: {
1011                             if (groupV1 != null) {
1012                                 groupV1.removeMember(resolveRecipient(source));
1013                                 account.getGroupStore().updateGroup(groupV1);
1014                             }
1015                             break;
1016                         }
1017                         case REQUEST_INFO:
1018                             if (groupV1 != null && !isSync) {
1019                                 actions.add(new SendGroupInfoAction(source, groupV1.getGroupId()));
1020                             }
1021                             break;
1022                     }
1023                 } else {
1024                     // Received a group v1 message for a v2 group
1025                 }
1026             }
1027             if (message.getGroupContext().get().getGroupV2().isPresent()) {
1028                 final var groupContext = message.getGroupContext().get().getGroupV2().get();
1029                 final var groupMasterKey = groupContext.getMasterKey();
1030
1031                 groupHelper.getOrMigrateGroup(groupMasterKey,
1032                         groupContext.getRevision(),
1033                         groupContext.hasSignedGroupChange() ? groupContext.getSignedGroupChange() : null);
1034             }
1035         }
1036
1037         final var conversationPartnerAddress = isSync ? destination : source;
1038         if (conversationPartnerAddress != null && message.isEndSession()) {
1039             handleEndSession(resolveRecipient(conversationPartnerAddress));
1040         }
1041         if (message.isExpirationUpdate() || message.getBody().isPresent()) {
1042             if (message.getGroupContext().isPresent()) {
1043                 if (message.getGroupContext().get().getGroupV1().isPresent()) {
1044                     var groupInfo = message.getGroupContext().get().getGroupV1().get();
1045                     var group = account.getGroupStore().getOrCreateGroupV1(GroupId.v1(groupInfo.getGroupId()));
1046                     if (group != null) {
1047                         if (group.messageExpirationTime != message.getExpiresInSeconds()) {
1048                             group.messageExpirationTime = message.getExpiresInSeconds();
1049                             account.getGroupStore().updateGroup(group);
1050                         }
1051                     }
1052                 } else if (message.getGroupContext().get().getGroupV2().isPresent()) {
1053                     // disappearing message timer already stored in the DecryptedGroup
1054                 }
1055             } else if (conversationPartnerAddress != null) {
1056                 setExpirationTimer(resolveRecipient(conversationPartnerAddress), message.getExpiresInSeconds());
1057             }
1058         }
1059         if (!ignoreAttachments) {
1060             if (message.getAttachments().isPresent()) {
1061                 for (var attachment : message.getAttachments().get()) {
1062                     downloadAttachment(attachment);
1063                 }
1064             }
1065             if (message.getSharedContacts().isPresent()) {
1066                 for (var contact : message.getSharedContacts().get()) {
1067                     if (contact.getAvatar().isPresent()) {
1068                         downloadAttachment(contact.getAvatar().get().getAttachment());
1069                     }
1070                 }
1071             }
1072         }
1073         if (message.getProfileKey().isPresent() && message.getProfileKey().get().length == 32) {
1074             final ProfileKey profileKey;
1075             try {
1076                 profileKey = new ProfileKey(message.getProfileKey().get());
1077             } catch (InvalidInputException e) {
1078                 throw new AssertionError(e);
1079             }
1080             if (source.matches(account.getSelfAddress())) {
1081                 this.account.setProfileKey(profileKey);
1082             }
1083             this.account.getProfileStore().storeProfileKey(resolveRecipient(source), profileKey);
1084         }
1085         if (message.getPreviews().isPresent()) {
1086             final var previews = message.getPreviews().get();
1087             for (var preview : previews) {
1088                 if (preview.getImage().isPresent()) {
1089                     downloadAttachment(preview.getImage().get());
1090                 }
1091             }
1092         }
1093         if (message.getQuote().isPresent()) {
1094             final var quote = message.getQuote().get();
1095
1096             for (var quotedAttachment : quote.getAttachments()) {
1097                 final var thumbnail = quotedAttachment.getThumbnail();
1098                 if (thumbnail != null) {
1099                     downloadAttachment(thumbnail);
1100                 }
1101             }
1102         }
1103         if (message.getSticker().isPresent()) {
1104             final var messageSticker = message.getSticker().get();
1105             final var stickerPackId = StickerPackId.deserialize(messageSticker.getPackId());
1106             var sticker = account.getStickerStore().getSticker(stickerPackId);
1107             if (sticker == null) {
1108                 sticker = new Sticker(stickerPackId, messageSticker.getPackKey());
1109                 account.getStickerStore().updateSticker(sticker);
1110             }
1111             enqueueJob(new RetrieveStickerPackJob(stickerPackId, messageSticker.getPackKey()));
1112         }
1113         return actions;
1114     }
1115
1116     private void retryFailedReceivedMessages(ReceiveMessageHandler handler, boolean ignoreAttachments) {
1117         Set<HandleAction> queuedActions = new HashSet<>();
1118         for (var cachedMessage : account.getMessageCache().getCachedMessages()) {
1119             var actions = retryFailedReceivedMessage(handler, ignoreAttachments, cachedMessage);
1120             if (actions != null) {
1121                 queuedActions.addAll(actions);
1122             }
1123         }
1124         handleQueuedActions(queuedActions);
1125     }
1126
1127     private List<HandleAction> retryFailedReceivedMessage(
1128             final ReceiveMessageHandler handler, final boolean ignoreAttachments, final CachedMessage cachedMessage
1129     ) {
1130         var envelope = cachedMessage.loadEnvelope();
1131         if (envelope == null) {
1132             return null;
1133         }
1134         SignalServiceContent content = null;
1135         List<HandleAction> actions = null;
1136         if (!envelope.isReceipt()) {
1137             try {
1138                 content = dependencies.getCipher().decrypt(envelope);
1139             } catch (ProtocolUntrustedIdentityException e) {
1140                 if (!envelope.hasSource()) {
1141                     final var identifier = e.getSender();
1142                     final var recipientId = resolveRecipient(identifier);
1143                     try {
1144                         account.getMessageCache().replaceSender(cachedMessage, recipientId);
1145                     } catch (IOException ioException) {
1146                         logger.warn("Failed to move cached message to recipient folder: {}", ioException.getMessage());
1147                     }
1148                 }
1149                 return null;
1150             } catch (Exception er) {
1151                 // All other errors are not recoverable, so delete the cached message
1152                 cachedMessage.delete();
1153                 return null;
1154             }
1155             actions = handleMessage(envelope, content, ignoreAttachments);
1156         }
1157         handler.handleMessage(envelope, content, null);
1158         cachedMessage.delete();
1159         return actions;
1160     }
1161
1162     public void receiveMessages(
1163             long timeout,
1164             TimeUnit unit,
1165             boolean returnOnTimeout,
1166             boolean ignoreAttachments,
1167             ReceiveMessageHandler handler
1168     ) throws IOException {
1169         retryFailedReceivedMessages(handler, ignoreAttachments);
1170
1171         Set<HandleAction> queuedActions = new HashSet<>();
1172
1173         final var signalWebSocket = dependencies.getSignalWebSocket();
1174         signalWebSocket.connect();
1175
1176         var hasCaughtUpWithOldMessages = false;
1177
1178         while (!Thread.interrupted()) {
1179             SignalServiceEnvelope envelope;
1180             SignalServiceContent content = null;
1181             Exception exception = null;
1182             final CachedMessage[] cachedMessage = {null};
1183             account.setLastReceiveTimestamp(System.currentTimeMillis());
1184             logger.debug("Checking for new message from server");
1185             try {
1186                 var result = signalWebSocket.readOrEmpty(unit.toMillis(timeout), envelope1 -> {
1187                     final var recipientId = envelope1.hasSource()
1188                             ? resolveRecipient(envelope1.getSourceIdentifier())
1189                             : null;
1190                     // store message on disk, before acknowledging receipt to the server
1191                     cachedMessage[0] = account.getMessageCache().cacheMessage(envelope1, recipientId);
1192                 });
1193                 logger.debug("New message received from server");
1194                 if (result.isPresent()) {
1195                     envelope = result.get();
1196                 } else {
1197                     // Received indicator that server queue is empty
1198                     hasCaughtUpWithOldMessages = true;
1199
1200                     handleQueuedActions(queuedActions);
1201                     queuedActions.clear();
1202
1203                     // Continue to wait another timeout for new messages
1204                     continue;
1205                 }
1206             } catch (AssertionError e) {
1207                 if (e.getCause() instanceof InterruptedException) {
1208                     Thread.currentThread().interrupt();
1209                     break;
1210                 } else {
1211                     throw e;
1212                 }
1213             } catch (WebSocketUnavailableException e) {
1214                 logger.debug("Pipe unexpectedly unavailable, connecting");
1215                 signalWebSocket.connect();
1216                 continue;
1217             } catch (TimeoutException e) {
1218                 if (returnOnTimeout) return;
1219                 continue;
1220             }
1221
1222             if (envelope.hasSource()) {
1223                 // Store uuid if we don't have it already
1224                 // address/uuid in envelope is sent by server
1225                 resolveRecipientTrusted(envelope.getSourceAddress());
1226             }
1227             if (!envelope.isReceipt()) {
1228                 try {
1229                     content = dependencies.getCipher().decrypt(envelope);
1230                 } catch (Exception e) {
1231                     exception = e;
1232                 }
1233                 if (!envelope.hasSource() && content != null) {
1234                     // Store uuid if we don't have it already
1235                     // address/uuid is validated by unidentified sender certificate
1236                     resolveRecipientTrusted(content.getSender());
1237                 }
1238                 var actions = handleMessage(envelope, content, ignoreAttachments);
1239                 if (exception instanceof ProtocolInvalidMessageException) {
1240                     final var sender = resolveRecipient(((ProtocolInvalidMessageException) exception).getSender());
1241                     logger.debug("Received invalid message, queuing renew session action.");
1242                     actions.add(new RenewSessionAction(sender));
1243                 }
1244                 if (hasCaughtUpWithOldMessages) {
1245                     for (var action : actions) {
1246                         try {
1247                             action.execute(this);
1248                         } catch (Throwable e) {
1249                             if (e instanceof AssertionError && e.getCause() instanceof InterruptedException) {
1250                                 Thread.currentThread().interrupt();
1251                             }
1252                             logger.warn("Message action failed.", e);
1253                         }
1254                     }
1255                 } else {
1256                     queuedActions.addAll(actions);
1257                 }
1258             }
1259             final var notAllowedToSendToGroup = isNotAllowedToSendToGroup(envelope, content);
1260             if (isMessageBlocked(envelope, content)) {
1261                 logger.info("Ignoring a message from blocked user/group: {}", envelope.getTimestamp());
1262             } else if (notAllowedToSendToGroup) {
1263                 logger.info("Ignoring a group message from an unauthorized sender (no member or admin): {} {}",
1264                         (envelope.hasSource() ? envelope.getSourceAddress() : content.getSender()).getIdentifier(),
1265                         envelope.getTimestamp());
1266             } else {
1267                 handler.handleMessage(envelope, content, exception);
1268             }
1269             if (cachedMessage[0] != null) {
1270                 if (exception instanceof ProtocolUntrustedIdentityException) {
1271                     final var identifier = ((ProtocolUntrustedIdentityException) exception).getSender();
1272                     final var recipientId = resolveRecipient(identifier);
1273                     queuedActions.add(new RetrieveProfileAction(recipientId));
1274                     if (!envelope.hasSource()) {
1275                         try {
1276                             cachedMessage[0] = account.getMessageCache().replaceSender(cachedMessage[0], recipientId);
1277                         } catch (IOException ioException) {
1278                             logger.warn("Failed to move cached message to recipient folder: {}",
1279                                     ioException.getMessage());
1280                         }
1281                     }
1282                 } else {
1283                     cachedMessage[0].delete();
1284                 }
1285             }
1286         }
1287         handleQueuedActions(queuedActions);
1288     }
1289
1290     private void handleQueuedActions(final Set<HandleAction> queuedActions) {
1291         for (var action : queuedActions) {
1292             try {
1293                 action.execute(this);
1294             } catch (Throwable e) {
1295                 if (e instanceof AssertionError && e.getCause() instanceof InterruptedException) {
1296                     Thread.currentThread().interrupt();
1297                 }
1298                 logger.warn("Message action failed.", e);
1299             }
1300         }
1301     }
1302
1303     private boolean isMessageBlocked(
1304             SignalServiceEnvelope envelope, SignalServiceContent content
1305     ) {
1306         SignalServiceAddress source;
1307         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1308             source = envelope.getSourceAddress();
1309         } else if (content != null) {
1310             source = content.getSender();
1311         } else {
1312             return false;
1313         }
1314         final var recipientId = resolveRecipient(source);
1315         if (isContactBlocked(recipientId)) {
1316             return true;
1317         }
1318
1319         if (content != null && content.getDataMessage().isPresent()) {
1320             var message = content.getDataMessage().get();
1321             if (message.getGroupContext().isPresent()) {
1322                 var groupId = GroupUtils.getGroupId(message.getGroupContext().get());
1323                 var group = getGroup(groupId);
1324                 if (group != null && group.isBlocked()) {
1325                     return true;
1326                 }
1327             }
1328         }
1329         return false;
1330     }
1331
1332     public boolean isContactBlocked(final RecipientIdentifier.Single recipient) {
1333         final var recipientId = resolveRecipient(recipient);
1334         return isContactBlocked(recipientId);
1335     }
1336
1337     private boolean isContactBlocked(final RecipientId recipientId) {
1338         var sourceContact = account.getContactStore().getContact(recipientId);
1339         return sourceContact != null && sourceContact.isBlocked();
1340     }
1341
1342     private boolean isNotAllowedToSendToGroup(
1343             SignalServiceEnvelope envelope, SignalServiceContent content
1344     ) {
1345         SignalServiceAddress source;
1346         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1347             source = envelope.getSourceAddress();
1348         } else if (content != null) {
1349             source = content.getSender();
1350         } else {
1351             return false;
1352         }
1353
1354         if (content == null || !content.getDataMessage().isPresent()) {
1355             return false;
1356         }
1357
1358         var message = content.getDataMessage().get();
1359         if (!message.getGroupContext().isPresent()) {
1360             return false;
1361         }
1362
1363         if (message.getGroupContext().get().getGroupV1().isPresent()) {
1364             var groupInfo = message.getGroupContext().get().getGroupV1().get();
1365             if (groupInfo.getType() == SignalServiceGroup.Type.QUIT) {
1366                 return false;
1367             }
1368         }
1369
1370         var groupId = GroupUtils.getGroupId(message.getGroupContext().get());
1371         var group = getGroup(groupId);
1372         if (group == null) {
1373             return false;
1374         }
1375
1376         final var recipientId = resolveRecipient(source);
1377         if (!group.isMember(recipientId)) {
1378             return true;
1379         }
1380
1381         if (group.isAnnouncementGroup() && !group.isAdmin(recipientId)) {
1382             return message.getBody().isPresent()
1383                     || message.getAttachments().isPresent()
1384                     || message.getQuote()
1385                     .isPresent()
1386                     || message.getPreviews().isPresent()
1387                     || message.getMentions().isPresent()
1388                     || message.getSticker().isPresent();
1389         }
1390         return false;
1391     }
1392
1393     private List<HandleAction> handleMessage(
1394             SignalServiceEnvelope envelope, SignalServiceContent content, boolean ignoreAttachments
1395     ) {
1396         var actions = new ArrayList<HandleAction>();
1397         if (content != null) {
1398             final SignalServiceAddress sender;
1399             if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1400                 sender = envelope.getSourceAddress();
1401             } else {
1402                 sender = content.getSender();
1403             }
1404
1405             if (content.getDataMessage().isPresent()) {
1406                 var message = content.getDataMessage().get();
1407
1408                 if (content.isNeedsReceipt()) {
1409                     actions.add(new SendReceiptAction(sender, message.getTimestamp()));
1410                 }
1411
1412                 actions.addAll(handleSignalServiceDataMessage(message,
1413                         false,
1414                         sender,
1415                         account.getSelfAddress(),
1416                         ignoreAttachments));
1417             }
1418             if (content.getSyncMessage().isPresent()) {
1419                 account.setMultiDevice(true);
1420                 var syncMessage = content.getSyncMessage().get();
1421                 if (syncMessage.getSent().isPresent()) {
1422                     var message = syncMessage.getSent().get();
1423                     final var destination = message.getDestination().orNull();
1424                     actions.addAll(handleSignalServiceDataMessage(message.getMessage(),
1425                             true,
1426                             sender,
1427                             destination,
1428                             ignoreAttachments));
1429                 }
1430                 if (syncMessage.getRequest().isPresent() && account.isMasterDevice()) {
1431                     var rm = syncMessage.getRequest().get();
1432                     if (rm.isContactsRequest()) {
1433                         actions.add(SendSyncContactsAction.create());
1434                     }
1435                     if (rm.isGroupsRequest()) {
1436                         actions.add(SendSyncGroupsAction.create());
1437                     }
1438                     if (rm.isBlockedListRequest()) {
1439                         actions.add(SendSyncBlockedListAction.create());
1440                     }
1441                     // TODO Handle rm.isConfigurationRequest(); rm.isKeysRequest();
1442                 }
1443                 if (syncMessage.getGroups().isPresent()) {
1444                     File tmpFile = null;
1445                     try {
1446                         tmpFile = IOUtils.createTempFile();
1447                         final var groupsMessage = syncMessage.getGroups().get();
1448                         try (var attachmentAsStream = retrieveAttachmentAsStream(groupsMessage.asPointer(), tmpFile)) {
1449                             var s = new DeviceGroupsInputStream(attachmentAsStream);
1450                             DeviceGroup g;
1451                             while (true) {
1452                                 try {
1453                                     g = s.read();
1454                                 } catch (IOException e) {
1455                                     logger.warn("Sync groups contained invalid group, ignoring: {}", e.getMessage());
1456                                     continue;
1457                                 }
1458                                 if (g == null) {
1459                                     break;
1460                                 }
1461                                 var syncGroup = account.getGroupStore().getOrCreateGroupV1(GroupId.v1(g.getId()));
1462                                 if (syncGroup != null) {
1463                                     if (g.getName().isPresent()) {
1464                                         syncGroup.name = g.getName().get();
1465                                     }
1466                                     syncGroup.addMembers(g.getMembers()
1467                                             .stream()
1468                                             .map(this::resolveRecipient)
1469                                             .collect(Collectors.toSet()));
1470                                     if (!g.isActive()) {
1471                                         syncGroup.removeMember(account.getSelfRecipientId());
1472                                     } else {
1473                                         // Add ourself to the member set as it's marked as active
1474                                         syncGroup.addMembers(List.of(account.getSelfRecipientId()));
1475                                     }
1476                                     syncGroup.blocked = g.isBlocked();
1477                                     if (g.getColor().isPresent()) {
1478                                         syncGroup.color = g.getColor().get();
1479                                     }
1480
1481                                     if (g.getAvatar().isPresent()) {
1482                                         downloadGroupAvatar(syncGroup.getGroupId(), g.getAvatar().get());
1483                                     }
1484                                     syncGroup.archived = g.isArchived();
1485                                     account.getGroupStore().updateGroup(syncGroup);
1486                                 }
1487                             }
1488                         }
1489                     } catch (Exception e) {
1490                         logger.warn("Failed to handle received sync groups “{}”, ignoring: {}",
1491                                 tmpFile,
1492                                 e.getMessage());
1493                     } finally {
1494                         if (tmpFile != null) {
1495                             try {
1496                                 Files.delete(tmpFile.toPath());
1497                             } catch (IOException e) {
1498                                 logger.warn("Failed to delete received groups temp file “{}”, ignoring: {}",
1499                                         tmpFile,
1500                                         e.getMessage());
1501                             }
1502                         }
1503                     }
1504                 }
1505                 if (syncMessage.getBlockedList().isPresent()) {
1506                     final var blockedListMessage = syncMessage.getBlockedList().get();
1507                     for (var address : blockedListMessage.getAddresses()) {
1508                         setContactBlocked(resolveRecipient(address), true);
1509                     }
1510                     for (var groupId : blockedListMessage.getGroupIds()
1511                             .stream()
1512                             .map(GroupId::unknownVersion)
1513                             .collect(Collectors.toSet())) {
1514                         try {
1515                             setGroupBlocked(groupId, true);
1516                         } catch (GroupNotFoundException e) {
1517                             logger.warn("BlockedListMessage contained groupID that was not found in GroupStore: {}",
1518                                     groupId.toBase64());
1519                         }
1520                     }
1521                 }
1522                 if (syncMessage.getContacts().isPresent()) {
1523                     File tmpFile = null;
1524                     try {
1525                         tmpFile = IOUtils.createTempFile();
1526                         final var contactsMessage = syncMessage.getContacts().get();
1527                         try (var attachmentAsStream = retrieveAttachmentAsStream(contactsMessage.getContactsStream()
1528                                 .asPointer(), tmpFile)) {
1529                             var s = new DeviceContactsInputStream(attachmentAsStream);
1530                             DeviceContact c;
1531                             while (true) {
1532                                 try {
1533                                     c = s.read();
1534                                 } catch (IOException e) {
1535                                     logger.warn("Sync contacts contained invalid contact, ignoring: {}",
1536                                             e.getMessage());
1537                                     continue;
1538                                 }
1539                                 if (c == null) {
1540                                     break;
1541                                 }
1542                                 if (c.getAddress().matches(account.getSelfAddress()) && c.getProfileKey().isPresent()) {
1543                                     account.setProfileKey(c.getProfileKey().get());
1544                                 }
1545                                 final var recipientId = resolveRecipientTrusted(c.getAddress());
1546                                 var contact = account.getContactStore().getContact(recipientId);
1547                                 final var builder = contact == null
1548                                         ? Contact.newBuilder()
1549                                         : Contact.newBuilder(contact);
1550                                 if (c.getName().isPresent()) {
1551                                     builder.withName(c.getName().get());
1552                                 }
1553                                 if (c.getColor().isPresent()) {
1554                                     builder.withColor(c.getColor().get());
1555                                 }
1556                                 if (c.getProfileKey().isPresent()) {
1557                                     account.getProfileStore().storeProfileKey(recipientId, c.getProfileKey().get());
1558                                 }
1559                                 if (c.getVerified().isPresent()) {
1560                                     final var verifiedMessage = c.getVerified().get();
1561                                     account.getIdentityKeyStore()
1562                                             .setIdentityTrustLevel(resolveRecipientTrusted(verifiedMessage.getDestination()),
1563                                                     verifiedMessage.getIdentityKey(),
1564                                                     TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
1565                                 }
1566                                 if (c.getExpirationTimer().isPresent()) {
1567                                     builder.withMessageExpirationTime(c.getExpirationTimer().get());
1568                                 }
1569                                 builder.withBlocked(c.isBlocked());
1570                                 builder.withArchived(c.isArchived());
1571                                 account.getContactStore().storeContact(recipientId, builder.build());
1572
1573                                 if (c.getAvatar().isPresent()) {
1574                                     downloadContactAvatar(c.getAvatar().get(), c.getAddress());
1575                                 }
1576                             }
1577                         }
1578                     } catch (Exception e) {
1579                         logger.warn("Failed to handle received sync contacts “{}”, ignoring: {}",
1580                                 tmpFile,
1581                                 e.getMessage());
1582                     } finally {
1583                         if (tmpFile != null) {
1584                             try {
1585                                 Files.delete(tmpFile.toPath());
1586                             } catch (IOException e) {
1587                                 logger.warn("Failed to delete received contacts temp file “{}”, ignoring: {}",
1588                                         tmpFile,
1589                                         e.getMessage());
1590                             }
1591                         }
1592                     }
1593                 }
1594                 if (syncMessage.getVerified().isPresent()) {
1595                     final var verifiedMessage = syncMessage.getVerified().get();
1596                     account.getIdentityKeyStore()
1597                             .setIdentityTrustLevel(resolveRecipientTrusted(verifiedMessage.getDestination()),
1598                                     verifiedMessage.getIdentityKey(),
1599                                     TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
1600                 }
1601                 if (syncMessage.getStickerPackOperations().isPresent()) {
1602                     final var stickerPackOperationMessages = syncMessage.getStickerPackOperations().get();
1603                     for (var m : stickerPackOperationMessages) {
1604                         if (!m.getPackId().isPresent()) {
1605                             continue;
1606                         }
1607                         final var stickerPackId = StickerPackId.deserialize(m.getPackId().get());
1608                         final var installed = !m.getType().isPresent()
1609                                 || m.getType().get() == StickerPackOperationMessage.Type.INSTALL;
1610
1611                         var sticker = account.getStickerStore().getSticker(stickerPackId);
1612                         if (m.getPackKey().isPresent()) {
1613                             if (sticker == null) {
1614                                 sticker = new Sticker(stickerPackId, m.getPackKey().get());
1615                             }
1616                             if (installed) {
1617                                 enqueueJob(new RetrieveStickerPackJob(stickerPackId, m.getPackKey().get()));
1618                             }
1619                         }
1620
1621                         if (sticker != null) {
1622                             sticker.setInstalled(installed);
1623                             account.getStickerStore().updateSticker(sticker);
1624                         }
1625                     }
1626                 }
1627                 if (syncMessage.getFetchType().isPresent()) {
1628                     switch (syncMessage.getFetchType().get()) {
1629                         case LOCAL_PROFILE:
1630                             actions.add(new RetrieveProfileAction(account.getSelfRecipientId()));
1631                         case STORAGE_MANIFEST:
1632                             // TODO
1633                     }
1634                 }
1635                 if (syncMessage.getKeys().isPresent()) {
1636                     final var keysMessage = syncMessage.getKeys().get();
1637                     if (keysMessage.getStorageService().isPresent()) {
1638                         final var storageKey = keysMessage.getStorageService().get();
1639                         account.setStorageKey(storageKey);
1640                     }
1641                 }
1642                 if (syncMessage.getConfiguration().isPresent()) {
1643                     // TODO
1644                 }
1645             }
1646         }
1647         return actions;
1648     }
1649
1650     private void downloadContactAvatar(SignalServiceAttachment avatar, SignalServiceAddress address) {
1651         try {
1652             avatarStore.storeContactAvatar(address, outputStream -> retrieveAttachment(avatar, outputStream));
1653         } catch (IOException e) {
1654             logger.warn("Failed to download avatar for contact {}, ignoring: {}", address, e.getMessage());
1655         }
1656     }
1657
1658     private void downloadGroupAvatar(GroupIdV1 groupId, SignalServiceAttachment avatar) {
1659         try {
1660             avatarStore.storeGroupAvatar(groupId, outputStream -> retrieveAttachment(avatar, outputStream));
1661         } catch (IOException e) {
1662             logger.warn("Failed to download avatar for group {}, ignoring: {}", groupId.toBase64(), e.getMessage());
1663         }
1664     }
1665
1666     public File getAttachmentFile(SignalServiceAttachmentRemoteId attachmentId) {
1667         return attachmentStore.getAttachmentFile(attachmentId);
1668     }
1669
1670     private void downloadAttachment(final SignalServiceAttachment attachment) {
1671         if (!attachment.isPointer()) {
1672             logger.warn("Invalid state, can't store an attachment stream.");
1673         }
1674
1675         var pointer = attachment.asPointer();
1676         if (pointer.getPreview().isPresent()) {
1677             final var preview = pointer.getPreview().get();
1678             try {
1679                 attachmentStore.storeAttachmentPreview(pointer.getRemoteId(),
1680                         outputStream -> outputStream.write(preview, 0, preview.length));
1681             } catch (IOException e) {
1682                 logger.warn("Failed to download attachment preview, ignoring: {}", e.getMessage());
1683             }
1684         }
1685
1686         try {
1687             attachmentStore.storeAttachment(pointer.getRemoteId(),
1688                     outputStream -> retrieveAttachmentPointer(pointer, outputStream));
1689         } catch (IOException e) {
1690             logger.warn("Failed to download attachment ({}), ignoring: {}", pointer.getRemoteId(), e.getMessage());
1691         }
1692     }
1693
1694     private void retrieveAttachment(
1695             final SignalServiceAttachment attachment, final OutputStream outputStream
1696     ) throws IOException {
1697         if (attachment.isPointer()) {
1698             var pointer = attachment.asPointer();
1699             retrieveAttachmentPointer(pointer, outputStream);
1700         } else {
1701             var stream = attachment.asStream();
1702             IOUtils.copyStream(stream.getInputStream(), outputStream);
1703         }
1704     }
1705
1706     private void retrieveAttachmentPointer(
1707             SignalServiceAttachmentPointer pointer, OutputStream outputStream
1708     ) throws IOException {
1709         var tmpFile = IOUtils.createTempFile();
1710         try (var input = retrieveAttachmentAsStream(pointer, tmpFile)) {
1711             IOUtils.copyStream(input, outputStream);
1712         } catch (MissingConfigurationException | InvalidMessageException e) {
1713             throw new IOException(e);
1714         } finally {
1715             try {
1716                 Files.delete(tmpFile.toPath());
1717             } catch (IOException e) {
1718                 logger.warn("Failed to delete received attachment temp file “{}”, ignoring: {}",
1719                         tmpFile,
1720                         e.getMessage());
1721             }
1722         }
1723     }
1724
1725     private InputStream retrieveAttachmentAsStream(
1726             SignalServiceAttachmentPointer pointer, File tmpFile
1727     ) throws IOException, InvalidMessageException, MissingConfigurationException {
1728         return dependencies.getMessageReceiver()
1729                 .retrieveAttachment(pointer, tmpFile, ServiceConfig.MAX_ATTACHMENT_SIZE);
1730     }
1731
1732     void sendGroups() throws IOException {
1733         var groupsFile = IOUtils.createTempFile();
1734
1735         try {
1736             try (OutputStream fos = new FileOutputStream(groupsFile)) {
1737                 var out = new DeviceGroupsOutputStream(fos);
1738                 for (var record : getGroups()) {
1739                     if (record instanceof GroupInfoV1) {
1740                         var groupInfo = (GroupInfoV1) record;
1741                         out.write(new DeviceGroup(groupInfo.getGroupId().serialize(),
1742                                 Optional.fromNullable(groupInfo.name),
1743                                 groupInfo.getMembers()
1744                                         .stream()
1745                                         .map(this::resolveSignalServiceAddress)
1746                                         .collect(Collectors.toList()),
1747                                 groupHelper.createGroupAvatarAttachment(groupInfo.getGroupId()),
1748                                 groupInfo.isMember(account.getSelfRecipientId()),
1749                                 Optional.of(groupInfo.messageExpirationTime),
1750                                 Optional.fromNullable(groupInfo.color),
1751                                 groupInfo.blocked,
1752                                 Optional.absent(),
1753                                 groupInfo.archived));
1754                     }
1755                 }
1756             }
1757
1758             if (groupsFile.exists() && groupsFile.length() > 0) {
1759                 try (var groupsFileStream = new FileInputStream(groupsFile)) {
1760                     var attachmentStream = SignalServiceAttachment.newStreamBuilder()
1761                             .withStream(groupsFileStream)
1762                             .withContentType("application/octet-stream")
1763                             .withLength(groupsFile.length())
1764                             .build();
1765
1766                     sendHelper.sendSyncMessage(SignalServiceSyncMessage.forGroups(attachmentStream));
1767                 }
1768             }
1769         } finally {
1770             try {
1771                 Files.delete(groupsFile.toPath());
1772             } catch (IOException e) {
1773                 logger.warn("Failed to delete groups temp file “{}”, ignoring: {}", groupsFile, e.getMessage());
1774             }
1775         }
1776     }
1777
1778     public void sendContacts() throws IOException {
1779         var contactsFile = IOUtils.createTempFile();
1780
1781         try {
1782             try (OutputStream fos = new FileOutputStream(contactsFile)) {
1783                 var out = new DeviceContactsOutputStream(fos);
1784                 for (var contactPair : account.getContactStore().getContacts()) {
1785                     final var recipientId = contactPair.first();
1786                     final var contact = contactPair.second();
1787                     final var address = resolveSignalServiceAddress(recipientId);
1788
1789                     var currentIdentity = account.getIdentityKeyStore().getIdentity(recipientId);
1790                     VerifiedMessage verifiedMessage = null;
1791                     if (currentIdentity != null) {
1792                         verifiedMessage = new VerifiedMessage(address,
1793                                 currentIdentity.getIdentityKey(),
1794                                 currentIdentity.getTrustLevel().toVerifiedState(),
1795                                 currentIdentity.getDateAdded().getTime());
1796                     }
1797
1798                     var profileKey = account.getProfileStore().getProfileKey(recipientId);
1799                     out.write(new DeviceContact(address,
1800                             Optional.fromNullable(contact.getName()),
1801                             createContactAvatarAttachment(address),
1802                             Optional.fromNullable(contact.getColor()),
1803                             Optional.fromNullable(verifiedMessage),
1804                             Optional.fromNullable(profileKey),
1805                             contact.isBlocked(),
1806                             Optional.of(contact.getMessageExpirationTime()),
1807                             Optional.absent(),
1808                             contact.isArchived()));
1809                 }
1810
1811                 if (account.getProfileKey() != null) {
1812                     // Send our own profile key as well
1813                     out.write(new DeviceContact(account.getSelfAddress(),
1814                             Optional.absent(),
1815                             Optional.absent(),
1816                             Optional.absent(),
1817                             Optional.absent(),
1818                             Optional.of(account.getProfileKey()),
1819                             false,
1820                             Optional.absent(),
1821                             Optional.absent(),
1822                             false));
1823                 }
1824             }
1825
1826             if (contactsFile.exists() && contactsFile.length() > 0) {
1827                 try (var contactsFileStream = new FileInputStream(contactsFile)) {
1828                     var attachmentStream = SignalServiceAttachment.newStreamBuilder()
1829                             .withStream(contactsFileStream)
1830                             .withContentType("application/octet-stream")
1831                             .withLength(contactsFile.length())
1832                             .build();
1833
1834                     sendHelper.sendSyncMessage(SignalServiceSyncMessage.forContacts(new ContactsMessage(attachmentStream,
1835                             true)));
1836                 }
1837             }
1838         } finally {
1839             try {
1840                 Files.delete(contactsFile.toPath());
1841             } catch (IOException e) {
1842                 logger.warn("Failed to delete contacts temp file “{}”, ignoring: {}", contactsFile, e.getMessage());
1843             }
1844         }
1845     }
1846
1847     void sendBlockedList() throws IOException {
1848         var addresses = new ArrayList<SignalServiceAddress>();
1849         for (var record : account.getContactStore().getContacts()) {
1850             if (record.second().isBlocked()) {
1851                 addresses.add(resolveSignalServiceAddress(record.first()));
1852             }
1853         }
1854         var groupIds = new ArrayList<byte[]>();
1855         for (var record : getGroups()) {
1856             if (record.isBlocked()) {
1857                 groupIds.add(record.getGroupId().serialize());
1858             }
1859         }
1860         sendHelper.sendSyncMessage(SignalServiceSyncMessage.forBlocked(new BlockedListMessage(addresses, groupIds)));
1861     }
1862
1863     private void sendVerifiedMessage(
1864             SignalServiceAddress destination, IdentityKey identityKey, TrustLevel trustLevel
1865     ) throws IOException {
1866         var verifiedMessage = new VerifiedMessage(destination,
1867                 identityKey,
1868                 trustLevel.toVerifiedState(),
1869                 System.currentTimeMillis());
1870         sendHelper.sendSyncMessage(SignalServiceSyncMessage.forVerified(verifiedMessage));
1871     }
1872
1873     public List<Pair<RecipientId, Contact>> getContacts() {
1874         return account.getContactStore().getContacts();
1875     }
1876
1877     public String getContactOrProfileName(RecipientIdentifier.Single recipientIdentifier) {
1878         final var recipientId = resolveRecipient(recipientIdentifier);
1879
1880         final var contact = account.getRecipientStore().getContact(recipientId);
1881         if (contact != null && !Util.isEmpty(contact.getName())) {
1882             return contact.getName();
1883         }
1884
1885         final var profile = getRecipientProfile(recipientId);
1886         if (profile != null) {
1887             return profile.getDisplayName();
1888         }
1889
1890         return null;
1891     }
1892
1893     public GroupInfo getGroup(GroupId groupId) {
1894         return groupHelper.getGroup(groupId);
1895     }
1896
1897     public List<IdentityInfo> getIdentities() {
1898         return account.getIdentityKeyStore().getIdentities();
1899     }
1900
1901     public List<IdentityInfo> getIdentities(RecipientIdentifier.Single recipient) {
1902         final var identity = account.getIdentityKeyStore().getIdentity(resolveRecipient(recipient));
1903         return identity == null ? List.of() : List.of(identity);
1904     }
1905
1906     /**
1907      * Trust this the identity with this fingerprint
1908      *
1909      * @param recipient   username of the identity
1910      * @param fingerprint Fingerprint
1911      */
1912     public boolean trustIdentityVerified(RecipientIdentifier.Single recipient, byte[] fingerprint) {
1913         var recipientId = resolveRecipient(recipient);
1914         return trustIdentity(recipientId,
1915                 identityKey -> Arrays.equals(identityKey.serialize(), fingerprint),
1916                 TrustLevel.TRUSTED_VERIFIED);
1917     }
1918
1919     /**
1920      * Trust this the identity with this safety number
1921      *
1922      * @param recipient    username of the identity
1923      * @param safetyNumber Safety number
1924      */
1925     public boolean trustIdentityVerifiedSafetyNumber(RecipientIdentifier.Single recipient, String safetyNumber) {
1926         var recipientId = resolveRecipient(recipient);
1927         var address = account.getRecipientStore().resolveServiceAddress(recipientId);
1928         return trustIdentity(recipientId,
1929                 identityKey -> safetyNumber.equals(computeSafetyNumber(address, identityKey)),
1930                 TrustLevel.TRUSTED_VERIFIED);
1931     }
1932
1933     /**
1934      * Trust this the identity with this scannable safety number
1935      *
1936      * @param recipient    username of the identity
1937      * @param safetyNumber Scannable safety number
1938      */
1939     public boolean trustIdentityVerifiedSafetyNumber(RecipientIdentifier.Single recipient, byte[] safetyNumber) {
1940         var recipientId = resolveRecipient(recipient);
1941         var address = account.getRecipientStore().resolveServiceAddress(recipientId);
1942         return trustIdentity(recipientId, identityKey -> {
1943             final var fingerprint = computeSafetyNumberFingerprint(address, identityKey);
1944             try {
1945                 return fingerprint != null && fingerprint.getScannableFingerprint().compareTo(safetyNumber);
1946             } catch (FingerprintVersionMismatchException | FingerprintParsingException e) {
1947                 return false;
1948             }
1949         }, TrustLevel.TRUSTED_VERIFIED);
1950     }
1951
1952     /**
1953      * Trust all keys of this identity without verification
1954      *
1955      * @param recipient username of the identity
1956      */
1957     public boolean trustIdentityAllKeys(RecipientIdentifier.Single recipient) {
1958         var recipientId = resolveRecipient(recipient);
1959         return trustIdentity(recipientId, identityKey -> true, TrustLevel.TRUSTED_UNVERIFIED);
1960     }
1961
1962     private boolean trustIdentity(
1963             RecipientId recipientId, Function<IdentityKey, Boolean> verifier, TrustLevel trustLevel
1964     ) {
1965         var identity = account.getIdentityKeyStore().getIdentity(recipientId);
1966         if (identity == null) {
1967             return false;
1968         }
1969
1970         if (!verifier.apply(identity.getIdentityKey())) {
1971             return false;
1972         }
1973
1974         account.getIdentityKeyStore().setIdentityTrustLevel(recipientId, identity.getIdentityKey(), trustLevel);
1975         try {
1976             var address = account.getRecipientStore().resolveServiceAddress(recipientId);
1977             sendVerifiedMessage(address, identity.getIdentityKey(), trustLevel);
1978         } catch (IOException e) {
1979             logger.warn("Failed to send verification sync message: {}", e.getMessage());
1980         }
1981
1982         return true;
1983     }
1984
1985     private void handleIdentityFailure(
1986             final RecipientId recipientId, final SendMessageResult.IdentityFailure identityFailure
1987     ) {
1988         final var identityKey = identityFailure.getIdentityKey();
1989         if (identityKey != null) {
1990             final var newIdentity = account.getIdentityKeyStore().saveIdentity(recipientId, identityKey, new Date());
1991             if (newIdentity) {
1992                 account.getSessionStore().archiveSessions(recipientId);
1993             }
1994         } else {
1995             // Retrieve profile to get the current identity key from the server
1996             refreshRecipientProfile(recipientId);
1997         }
1998     }
1999
2000     public String computeSafetyNumber(SignalServiceAddress theirAddress, IdentityKey theirIdentityKey) {
2001         final Fingerprint fingerprint = computeSafetyNumberFingerprint(theirAddress, theirIdentityKey);
2002         return fingerprint == null ? null : fingerprint.getDisplayableFingerprint().getDisplayText();
2003     }
2004
2005     public byte[] computeSafetyNumberForScanning(SignalServiceAddress theirAddress, IdentityKey theirIdentityKey) {
2006         final Fingerprint fingerprint = computeSafetyNumberFingerprint(theirAddress, theirIdentityKey);
2007         return fingerprint == null ? null : fingerprint.getScannableFingerprint().getSerialized();
2008     }
2009
2010     private Fingerprint computeSafetyNumberFingerprint(
2011             final SignalServiceAddress theirAddress, final IdentityKey theirIdentityKey
2012     ) {
2013         return Utils.computeSafetyNumber(capabilities.isUuid(),
2014                 account.getSelfAddress(),
2015                 getIdentityKeyPair().getPublicKey(),
2016                 theirAddress,
2017                 theirIdentityKey);
2018     }
2019
2020     @Deprecated
2021     public SignalServiceAddress resolveSignalServiceAddress(String identifier) {
2022         var address = Utils.getSignalServiceAddressFromIdentifier(identifier);
2023
2024         return resolveSignalServiceAddress(address);
2025     }
2026
2027     @Deprecated
2028     public SignalServiceAddress resolveSignalServiceAddress(SignalServiceAddress address) {
2029         if (address.matches(account.getSelfAddress())) {
2030             return account.getSelfAddress();
2031         }
2032
2033         return account.getRecipientStore().resolveServiceAddress(address);
2034     }
2035
2036     public SignalServiceAddress resolveSignalServiceAddress(RecipientId recipientId) {
2037         return account.getRecipientStore().resolveServiceAddress(recipientId);
2038     }
2039
2040     private String canonicalizePhoneNumber(final String number) throws InvalidNumberException {
2041         return PhoneNumberFormatter.formatNumber(number, account.getUsername());
2042     }
2043
2044     private RecipientId resolveRecipient(final String identifier) {
2045         var address = Utils.getSignalServiceAddressFromIdentifier(identifier);
2046
2047         return resolveRecipient(address);
2048     }
2049
2050     private RecipientId resolveRecipient(final RecipientIdentifier.Single recipient) {
2051         final SignalServiceAddress address;
2052         if (recipient instanceof RecipientIdentifier.Uuid) {
2053             address = new SignalServiceAddress(((RecipientIdentifier.Uuid) recipient).uuid, null);
2054         } else {
2055             address = new SignalServiceAddress(null, ((RecipientIdentifier.Number) recipient).number);
2056         }
2057
2058         return resolveRecipient(address);
2059     }
2060
2061     public RecipientId resolveRecipient(SignalServiceAddress address) {
2062         return account.getRecipientStore().resolveRecipient(address);
2063     }
2064
2065     private RecipientId resolveRecipientTrusted(SignalServiceAddress address) {
2066         return account.getRecipientStore().resolveRecipientTrusted(address);
2067     }
2068
2069     private void enqueueJob(Job job) {
2070         var context = new Context(account,
2071                 dependencies.getAccountManager(),
2072                 dependencies.getMessageReceiver(),
2073                 stickerPackStore);
2074         job.run(context);
2075     }
2076
2077     @Override
2078     public void close() throws IOException {
2079         close(true);
2080     }
2081
2082     void close(boolean closeAccount) throws IOException {
2083         executor.shutdown();
2084
2085         dependencies.getSignalWebSocket().disconnect();
2086
2087         if (closeAccount && account != null) {
2088             account.close();
2089         }
2090         account = null;
2091     }
2092
2093     public interface ReceiveMessageHandler {
2094
2095         void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent decryptedContent, Throwable e);
2096     }
2097 }