nmode's Git Repositories - signal-cli/blob - lib/src/main/java/org/asamk/signal/manager/ManagerImpl.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.actions.HandleAction;
  20 import org.asamk.signal.manager.api.Configuration;
  21 import org.asamk.signal.manager.api.Device;
  22 import org.asamk.signal.manager.api.Group;
  23 import org.asamk.signal.manager.api.Identity;
  24 import org.asamk.signal.manager.api.InactiveGroupLinkException;
  25 import org.asamk.signal.manager.api.InvalidDeviceLinkException;
  26 import org.asamk.signal.manager.api.Message;
  27 import org.asamk.signal.manager.api.Pair;
  28 import org.asamk.signal.manager.api.RecipientIdentifier;
  29 import org.asamk.signal.manager.api.SendGroupMessageResults;
  30 import org.asamk.signal.manager.api.SendMessageResult;
  31 import org.asamk.signal.manager.api.SendMessageResults;
  32 import org.asamk.signal.manager.api.TypingAction;
  33 import org.asamk.signal.manager.api.UpdateGroup;
  34 import org.asamk.signal.manager.config.ServiceEnvironmentConfig;
  35 import org.asamk.signal.manager.groups.GroupId;
  36 import org.asamk.signal.manager.groups.GroupInviteLinkUrl;
  37 import org.asamk.signal.manager.groups.GroupNotFoundException;
  38 import org.asamk.signal.manager.groups.GroupSendingNotAllowedException;
  39 import org.asamk.signal.manager.groups.LastGroupAdminException;
  40 import org.asamk.signal.manager.groups.NotAGroupMemberException;
  41 import org.asamk.signal.manager.helper.AttachmentHelper;
  42 import org.asamk.signal.manager.helper.ContactHelper;
  43 import org.asamk.signal.manager.helper.GroupHelper;
  44 import org.asamk.signal.manager.helper.GroupV2Helper;
  45 import org.asamk.signal.manager.helper.IdentityHelper;
  46 import org.asamk.signal.manager.helper.IncomingMessageHandler;
  47 import org.asamk.signal.manager.helper.PinHelper;
  48 import org.asamk.signal.manager.helper.PreKeyHelper;
  49 import org.asamk.signal.manager.helper.ProfileHelper;
  50 import org.asamk.signal.manager.helper.RecipientHelper;
  51 import org.asamk.signal.manager.helper.SendHelper;
  52 import org.asamk.signal.manager.helper.StorageHelper;
  53 import org.asamk.signal.manager.helper.SyncHelper;
  54 import org.asamk.signal.manager.helper.UnidentifiedAccessHelper;
  55 import org.asamk.signal.manager.jobs.Context;
  56 import org.asamk.signal.manager.storage.SignalAccount;
  57 import org.asamk.signal.manager.storage.groups.GroupInfo;
  58 import org.asamk.signal.manager.storage.identities.IdentityInfo;
  59 import org.asamk.signal.manager.storage.messageCache.CachedMessage;
  60 import org.asamk.signal.manager.storage.recipients.Contact;
  61 import org.asamk.signal.manager.storage.recipients.Profile;
  62 import org.asamk.signal.manager.storage.recipients.RecipientAddress;
  63 import org.asamk.signal.manager.storage.recipients.RecipientId;
  64 import org.asamk.signal.manager.storage.stickers.Sticker;
  65 import org.asamk.signal.manager.storage.stickers.StickerPackId;
  66 import org.asamk.signal.manager.util.KeyUtils;
  67 import org.asamk.signal.manager.util.StickerUtils;
  68 import org.slf4j.Logger;
  69 import org.slf4j.LoggerFactory;
  70 import org.whispersystems.libsignal.InvalidKeyException;
  71 import org.whispersystems.libsignal.ecc.ECPublicKey;
  72 import org.whispersystems.libsignal.util.guava.Optional;
  73 import org.whispersystems.signalservice.api.SignalSessionLock;
  74 import org.whispersystems.signalservice.api.messages.SignalServiceDataMessage;
  75 import org.whispersystems.signalservice.api.messages.SignalServiceEnvelope;
  76 import org.whispersystems.signalservice.api.messages.SignalServiceReceiptMessage;
  77 import org.whispersystems.signalservice.api.messages.SignalServiceTypingMessage;
  78 import org.whispersystems.signalservice.api.push.ACI;
  79 import org.whispersystems.signalservice.api.push.SignalServiceAddress;
  80 import org.whispersystems.signalservice.api.push.exceptions.AuthorizationFailedException;
  81 import org.whispersystems.signalservice.api.util.DeviceNameUtil;
  82 import org.whispersystems.signalservice.api.util.InvalidNumberException;
  83 import org.whispersystems.signalservice.api.util.PhoneNumberFormatter;
  84 import org.whispersystems.signalservice.api.websocket.WebSocketConnectionState;
  85 import org.whispersystems.signalservice.api.websocket.WebSocketUnavailableException;
  86 import org.whispersystems.signalservice.internal.util.DynamicCredentialsProvider;
  87 import org.whispersystems.signalservice.internal.util.Hex;
  88 import org.whispersystems.signalservice.internal.util.Util;
  89
  90 import java.io.File;
  91 import java.io.IOException;
  92 import java.net.URI;
  93 import java.net.URISyntaxException;
  94 import java.net.URLEncoder;
  95 import java.nio.charset.StandardCharsets;
  96 import java.time.Duration;
  97 import java.util.ArrayList;
  98 import java.util.Collection;
  99 import java.util.HashMap;
 100 import java.util.HashSet;
 101 import java.util.List;
 102 import java.util.Map;
 103 import java.util.Set;
 104 import java.util.UUID;
 105 import java.util.concurrent.ExecutorService;
 106 import java.util.concurrent.Executors;
 107 import java.util.concurrent.TimeUnit;
 108 import java.util.concurrent.TimeoutException;
 109 import java.util.concurrent.locks.ReentrantLock;
 110 import java.util.stream.Collectors;
 111 import java.util.stream.Stream;
 112
 113 import io.reactivex.rxjava3.core.Observable;
 114 import io.reactivex.rxjava3.schedulers.Schedulers;
 115
 116 import static org.asamk.signal.manager.config.ServiceConfig.capabilities;
 117
 118 public class ManagerImpl implements Manager {
 119
 120     private final static Logger logger = LoggerFactory.getLogger(ManagerImpl.class);
 121
 122     private final SignalDependencies dependencies;
 123
 124     private SignalAccount account;
 125
 126     private final ExecutorService executor = Executors.newCachedThreadPool();
 127
 128     private final ProfileHelper profileHelper;
 129     private final PinHelper pinHelper;
 130     private final StorageHelper storageHelper;
 131     private final SendHelper sendHelper;
 132     private final SyncHelper syncHelper;
 133     private final AttachmentHelper attachmentHelper;
 134     private final GroupHelper groupHelper;
 135     private final ContactHelper contactHelper;
 136     private final IncomingMessageHandler incomingMessageHandler;
 137     private final PreKeyHelper preKeyHelper;
 138     private final IdentityHelper identityHelper;
 139     private final RecipientHelper recipientHelper;
 140
 141     private final Context context;
 142     private boolean hasCaughtUpWithOldMessages = false;
 143     private boolean ignoreAttachments = false;
 144
 145     private Thread receiveThread;
 146     private final Set<ReceiveMessageHandler> weakHandlers = new HashSet<>();
 147     private final Set<ReceiveMessageHandler> messageHandlers = new HashSet<>();
 148     private final List<Runnable> closedListeners = new ArrayList<>();
 149     private boolean isReceivingSynchronous;
 150     private boolean needsToRetryFailedMessages = false;
 151
 152     ManagerImpl(
 153             SignalAccount account,
 154             PathConfig pathConfig,
 155             ServiceEnvironmentConfig serviceEnvironmentConfig,
 156             String userAgent
 157     ) {
 158         this.account = account;
 159
 160         final var credentialsProvider = new DynamicCredentialsProvider(account.getAci(),
 161                 account.getAccount(),
 162                 account.getPassword(),
 163                 account.getDeviceId());
 164         final var sessionLock = new SignalSessionLock() {
 165             private final ReentrantLock LEGACY_LOCK = new ReentrantLock();
 166
 167             @Override
 168             public Lock acquire() {
 169                 LEGACY_LOCK.lock();
 170                 return LEGACY_LOCK::unlock;
 171             }
 172         };
 173         this.dependencies = new SignalDependencies(serviceEnvironmentConfig,
 174                 userAgent,
 175                 credentialsProvider,
 176                 account.getSignalProtocolStore(),
 177                 executor,
 178                 sessionLock);
 179         final var avatarStore = new AvatarStore(pathConfig.avatarsPath());
 180         final var attachmentStore = new AttachmentStore(pathConfig.attachmentsPath());
 181         final var stickerPackStore = new StickerPackStore(pathConfig.stickerPacksPath());
 182
 183         this.attachmentHelper = new AttachmentHelper(dependencies, attachmentStore);
 184         this.pinHelper = new PinHelper(dependencies.getKeyBackupService());
 185         final var unidentifiedAccessHelper = new UnidentifiedAccessHelper(account,
 186                 dependencies,
 187                 account::getProfileKey,
 188                 this::getRecipientProfile);
 189         this.recipientHelper = new RecipientHelper(account, dependencies, serviceEnvironmentConfig);
 190         this.profileHelper = new ProfileHelper(account,
 191                 dependencies,
 192                 avatarStore,
 193                 unidentifiedAccessHelper::getAccessFor,
 194                 recipientHelper::resolveSignalServiceAddress);
 195         final GroupV2Helper groupV2Helper = new GroupV2Helper(profileHelper,
 196                 account::getSelfRecipientId,
 197                 dependencies.getGroupsV2Operations(),
 198                 dependencies.getGroupsV2Api(),
 199                 recipientHelper::resolveSignalServiceAddress);
 200         this.sendHelper = new SendHelper(account,
 201                 dependencies,
 202                 unidentifiedAccessHelper,
 203                 recipientHelper::resolveSignalServiceAddress,
 204                 account.getRecipientStore(),
 205                 this::handleIdentityFailure,
 206                 this::getGroupInfo,
 207                 profileHelper,
 208                 recipientHelper::refreshRegisteredUser);
 209         this.groupHelper = new GroupHelper(account,
 210                 dependencies,
 211                 attachmentHelper,
 212                 sendHelper,
 213                 groupV2Helper,
 214                 avatarStore,
 215                 recipientHelper::resolveSignalServiceAddress,
 216                 account.getRecipientStore());
 217         this.storageHelper = new StorageHelper(account, dependencies, groupHelper, profileHelper);
 218         this.contactHelper = new ContactHelper(account);
 219         this.syncHelper = new SyncHelper(account,
 220                 attachmentHelper,
 221                 sendHelper,
 222                 groupHelper,
 223                 avatarStore,
 224                 recipientHelper::resolveSignalServiceAddress);
 225         preKeyHelper = new PreKeyHelper(account, dependencies);
 226
 227         this.context = new Context(account,
 228                 dependencies,
 229                 stickerPackStore,
 230                 sendHelper,
 231                 groupHelper,
 232                 syncHelper,
 233                 profileHelper,
 234                 storageHelper,
 235                 preKeyHelper);
 236         var jobExecutor = new JobExecutor(context);
 237
 238         this.incomingMessageHandler = new IncomingMessageHandler(account,
 239                 dependencies,
 240                 account.getRecipientStore(),
 241                 recipientHelper::resolveSignalServiceAddress,
 242                 groupHelper,
 243                 contactHelper,
 244                 attachmentHelper,
 245                 syncHelper,
 246                 profileHelper::getRecipientProfile,
 247                 jobExecutor);
 248         this.identityHelper = new IdentityHelper(account,
 249                 dependencies,
 250                 recipientHelper::resolveSignalServiceAddress,
 251                 syncHelper,
 252                 profileHelper);
 253     }
 254
 255     @Override
 256     public String getSelfNumber() {
 257         return account.getAccount();
 258     }
 259
 260     @Override
 261     public void checkAccountState() throws IOException {
 262         if (account.getLastReceiveTimestamp() == 0) {
 263             logger.info("The Signal protocol expects that incoming messages are regularly received.");
 264         } else {
 265             var diffInMilliseconds = System.currentTimeMillis() - account.getLastReceiveTimestamp();
 266             long days = TimeUnit.DAYS.convert(diffInMilliseconds, TimeUnit.MILLISECONDS);
 267             if (days > 7) {
 268                 logger.warn(
 269                         "Messages have been last received {} days ago. The Signal protocol expects that incoming messages are regularly received.",
 270                         days);
 271             }
 272         }
 273         try {
 274             preKeyHelper.refreshPreKeysIfNecessary();
 275             if (account.getAci() == null) {
 276                 account.setAci(ACI.parseOrNull(dependencies.getAccountManager().getWhoAmI().getAci()));
 277             }
 278             updateAccountAttributes(null);
 279         } catch (AuthorizationFailedException e) {
 280             account.setRegistered(false);
 281             throw e;
 282         }
 283     }
 284
 285     /**
 286      * This is used for checking a set of phone numbers for registration on Signal
 287      *
 288      * @param numbers The set of phone number in question
 289      * @return A map of numbers to canonicalized number and uuid. If a number is not registered the uuid is null.
 290      * @throws IOException if it's unable to get the contacts to check if they're registered
 291      */
 292     @Override
 293     public Map<String, Pair<String, UUID>> areUsersRegistered(Set<String> numbers) throws IOException {
 294         final var canonicalizedNumbers = numbers.stream().collect(Collectors.toMap(n -> n, n -> {
 295             try {
 296                 final var canonicalizedNumber = PhoneNumberFormatter.formatNumber(n, account.getAccount());
 297                 if (!canonicalizedNumber.equals(n)) {
 298                     logger.debug("Normalized number {} to {}.", n, canonicalizedNumber);
 299                 }
 300                 return canonicalizedNumber;
 301             } catch (InvalidNumberException e) {
 302                 return "";
 303             }
 304         }));
 305
 306         // Note "registeredUsers" has no optionals. It only gives us info on users who are registered
 307         final var canonicalizedNumbersSet = canonicalizedNumbers.values()
 308                 .stream()
 309                 .filter(s -> !s.isEmpty())
 310                 .collect(Collectors.toSet());
 311         final var registeredUsers = recipientHelper.getRegisteredUsers(canonicalizedNumbersSet);
 312
 313         return numbers.stream().collect(Collectors.toMap(n -> n, n -> {
 314             final var number = canonicalizedNumbers.get(n);
 315             final var aci = registeredUsers.get(number);
 316             return new Pair<>(number.isEmpty() ? null : number, aci == null ? null : aci.uuid());
 317         }));
 318     }
 319
 320     @Override
 321     public void updateAccountAttributes(String deviceName) throws IOException {
 322         final String encryptedDeviceName;
 323         if (deviceName == null) {
 324             encryptedDeviceName = account.getEncryptedDeviceName();
 325         } else {
 326             final var privateKey = account.getIdentityKeyPair().getPrivateKey();
 327             encryptedDeviceName = DeviceNameUtil.encryptDeviceName(deviceName, privateKey);
 328             account.setEncryptedDeviceName(encryptedDeviceName);
 329         }
 330         dependencies.getAccountManager()
 331                 .setAccountAttributes(encryptedDeviceName,
 332                         null,
 333                         account.getLocalRegistrationId(),
 334                         true,
 335                         null,
 336                         account.getPinMasterKey() == null ? null : account.getPinMasterKey().deriveRegistrationLock(),
 337                         account.getSelfUnidentifiedAccessKey(),
 338                         account.isUnrestrictedUnidentifiedAccess(),
 339                         capabilities,
 340                         account.isDiscoverableByPhoneNumber());
 341     }
 342
 343     @Override
 344     public Configuration getConfiguration() {
 345         final var configurationStore = account.getConfigurationStore();
 346         return new Configuration(java.util.Optional.ofNullable(configurationStore.getReadReceipts()),
 347                 java.util.Optional.ofNullable(configurationStore.getUnidentifiedDeliveryIndicators()),
 348                 java.util.Optional.ofNullable(configurationStore.getTypingIndicators()),
 349                 java.util.Optional.ofNullable(configurationStore.getLinkPreviews()));
 350     }
 351
 352     @Override
 353     public void updateConfiguration(
 354             Configuration configuration
 355     ) throws IOException, NotMasterDeviceException {
 356         if (!account.isMasterDevice()) {
 357             throw new NotMasterDeviceException();
 358         }
 359
 360         final var configurationStore = account.getConfigurationStore();
 361         if (configuration.readReceipts().isPresent()) {
 362             configurationStore.setReadReceipts(configuration.readReceipts().get());
 363         }
 364         if (configuration.unidentifiedDeliveryIndicators().isPresent()) {
 365             configurationStore.setUnidentifiedDeliveryIndicators(configuration.unidentifiedDeliveryIndicators().get());
 366         }
 367         if (configuration.typingIndicators().isPresent()) {
 368             configurationStore.setTypingIndicators(configuration.typingIndicators().get());
 369         }
 370         if (configuration.linkPreviews().isPresent()) {
 371             configurationStore.setLinkPreviews(configuration.linkPreviews().get());
 372         }
 373         syncHelper.sendConfigurationMessage();
 374     }
 375
 376     /**
 377      * @param givenName  if null, the previous givenName will be kept
 378      * @param familyName if null, the previous familyName will be kept
 379      * @param about      if null, the previous about text will be kept
 380      * @param aboutEmoji if null, the previous about emoji will be kept
 381      * @param avatar     if avatar is null the image from the local avatar store is used (if present),
 382      */
 383     @Override
 384     public void setProfile(
 385             String givenName, final String familyName, String about, String aboutEmoji, java.util.Optional<File> avatar
 386     ) throws IOException {
 387         profileHelper.setProfile(givenName,
 388                 familyName,
 389                 about,
 390                 aboutEmoji,
 391                 avatar == null ? null : Optional.fromNullable(avatar.orElse(null)));
 392         syncHelper.sendSyncFetchProfileMessage();
 393     }
 394
 395     @Override
 396     public void unregister() throws IOException {
 397         // When setting an empty GCM id, the Signal-Server also sets the fetchesMessages property to false.
 398         // If this is the master device, other users can't send messages to this number anymore.
 399         // If this is a linked device, other users can still send messages, but this device doesn't receive them anymore.
 400         dependencies.getAccountManager().setGcmId(Optional.absent());
 401
 402         account.setRegistered(false);
 403         close();
 404     }
 405
 406     @Override
 407     public void deleteAccount() throws IOException {
 408         try {
 409             pinHelper.removeRegistrationLockPin();
 410         } catch (IOException e) {
 411             logger.warn("Failed to remove registration lock pin");
 412         }
 413         account.setRegistrationLockPin(null, null);
 414
 415         dependencies.getAccountManager().deleteAccount();
 416
 417         account.setRegistered(false);
 418         close();
 419     }
 420
 421     @Override
 422     public void submitRateLimitRecaptchaChallenge(String challenge, String captcha) throws IOException {
 423         captcha = captcha == null ? null : captcha.replace("signalcaptcha://", "");
 424
 425         dependencies.getAccountManager().submitRateLimitRecaptchaChallenge(challenge, captcha);
 426     }
 427
 428     @Override
 429     public List<Device> getLinkedDevices() throws IOException {
 430         var devices = dependencies.getAccountManager().getDevices();
 431         account.setMultiDevice(devices.size() > 1);
 432         var identityKey = account.getIdentityKeyPair().getPrivateKey();
 433         return devices.stream().map(d -> {
 434             String deviceName = d.getName();
 435             if (deviceName != null) {
 436                 try {
 437                     deviceName = DeviceNameUtil.decryptDeviceName(deviceName, identityKey);
 438                 } catch (IOException e) {
 439                     logger.debug("Failed to decrypt device name, maybe plain text?", e);
 440                 }
 441             }
 442             return new Device(d.getId(),
 443                     deviceName,
 444                     d.getCreated(),
 445                     d.getLastSeen(),
 446                     d.getId() == account.getDeviceId());
 447         }).toList();
 448     }
 449
 450     @Override
 451     public void removeLinkedDevices(long deviceId) throws IOException {
 452         dependencies.getAccountManager().removeDevice(deviceId);
 453         var devices = dependencies.getAccountManager().getDevices();
 454         account.setMultiDevice(devices.size() > 1);
 455     }
 456
 457     @Override
 458     public void addDeviceLink(URI linkUri) throws IOException, InvalidDeviceLinkException {
 459         var info = DeviceLinkInfo.parseDeviceLinkUri(linkUri);
 460
 461         addDevice(info.deviceIdentifier(), info.deviceKey());
 462     }
 463
 464     private void addDevice(
 465             String deviceIdentifier, ECPublicKey deviceKey
 466     ) throws IOException, InvalidDeviceLinkException {
 467         var identityKeyPair = account.getIdentityKeyPair();
 468         var verificationCode = dependencies.getAccountManager().getNewDeviceVerificationCode();
 469
 470         try {
 471             dependencies.getAccountManager()
 472                     .addDevice(deviceIdentifier,
 473                             deviceKey,
 474                             identityKeyPair,
 475                             Optional.of(account.getProfileKey().serialize()),
 476                             verificationCode);
 477         } catch (InvalidKeyException e) {
 478             throw new InvalidDeviceLinkException("Invalid device link", e);
 479         }
 480         account.setMultiDevice(true);
 481     }
 482
 483     @Override
 484     public void setRegistrationLockPin(java.util.Optional<String> pin) throws IOException {
 485         if (!account.isMasterDevice()) {
 486             throw new RuntimeException("Only master device can set a PIN");
 487         }
 488         if (pin.isPresent()) {
 489             final var masterKey = account.getPinMasterKey() != null
 490                     ? account.getPinMasterKey()
 491                     : KeyUtils.createMasterKey();
 492
 493             pinHelper.setRegistrationLockPin(pin.get(), masterKey);
 494
 495             account.setRegistrationLockPin(pin.get(), masterKey);
 496         } else {
 497             // Remove KBS Pin
 498             pinHelper.removeRegistrationLockPin();
 499
 500             account.setRegistrationLockPin(null, null);
 501         }
 502     }
 503
 504     void refreshPreKeys() throws IOException {
 505         preKeyHelper.refreshPreKeys();
 506     }
 507
 508     @Override
 509     public Profile getRecipientProfile(RecipientIdentifier.Single recipient) throws IOException {
 510         return profileHelper.getRecipientProfile(recipientHelper.resolveRecipient(recipient));
 511     }
 512
 513     private Profile getRecipientProfile(RecipientId recipientId) {
 514         return profileHelper.getRecipientProfile(recipientId);
 515     }
 516
 517     @Override
 518     public List<Group> getGroups() {
 519         return account.getGroupStore().getGroups().stream().map(this::toGroup).toList();
 520     }
 521
 522     private Group toGroup(final GroupInfo groupInfo) {
 523         if (groupInfo == null) {
 524             return null;
 525         }
 526
 527         return new Group(groupInfo.getGroupId(),
 528                 groupInfo.getTitle(),
 529                 groupInfo.getDescription(),
 530                 groupInfo.getGroupInviteLink(),
 531                 groupInfo.getMembers()
 532                         .stream()
 533                         .map(account.getRecipientStore()::resolveRecipientAddress)
 534                         .collect(Collectors.toSet()),
 535                 groupInfo.getPendingMembers()
 536                         .stream()
 537                         .map(account.getRecipientStore()::resolveRecipientAddress)
 538                         .collect(Collectors.toSet()),
 539                 groupInfo.getRequestingMembers()
 540                         .stream()
 541                         .map(account.getRecipientStore()::resolveRecipientAddress)
 542                         .collect(Collectors.toSet()),
 543                 groupInfo.getAdminMembers()
 544                         .stream()
 545                         .map(account.getRecipientStore()::resolveRecipientAddress)
 546                         .collect(Collectors.toSet()),
 547                 groupInfo.isBlocked(),
 548                 groupInfo.getMessageExpirationTimer(),
 549                 groupInfo.getPermissionAddMember(),
 550                 groupInfo.getPermissionEditDetails(),
 551                 groupInfo.getPermissionSendMessage(),
 552                 groupInfo.isMember(account.getSelfRecipientId()),
 553                 groupInfo.isAdmin(account.getSelfRecipientId()));
 554     }
 555
 556     @Override
 557     public SendGroupMessageResults quitGroup(
 558             GroupId groupId, Set<RecipientIdentifier.Single> groupAdmins
 559     ) throws GroupNotFoundException, IOException, NotAGroupMemberException, LastGroupAdminException {
 560         final var newAdmins = recipientHelper.resolveRecipients(groupAdmins);
 561         return groupHelper.quitGroup(groupId, newAdmins);
 562     }
 563
 564     @Override
 565     public void deleteGroup(GroupId groupId) throws IOException {
 566         groupHelper.deleteGroup(groupId);
 567     }
 568
 569     @Override
 570     public Pair<GroupId, SendGroupMessageResults> createGroup(
 571             String name, Set<RecipientIdentifier.Single> members, File avatarFile
 572     ) throws IOException, AttachmentInvalidException {
 573         return groupHelper.createGroup(name,
 574                 members == null ? null : recipientHelper.resolveRecipients(members),
 575                 avatarFile);
 576     }
 577
 578     @Override
 579     public SendGroupMessageResults updateGroup(
 580             final GroupId groupId, final UpdateGroup updateGroup
 581     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException, GroupSendingNotAllowedException {
 582         return groupHelper.updateGroup(groupId,
 583                 updateGroup.getName(),
 584                 updateGroup.getDescription(),
 585                 updateGroup.getMembers() == null ? null : recipientHelper.resolveRecipients(updateGroup.getMembers()),
 586                 updateGroup.getRemoveMembers() == null
 587                         ? null
 588                         : recipientHelper.resolveRecipients(updateGroup.getRemoveMembers()),
 589                 updateGroup.getAdmins() == null ? null : recipientHelper.resolveRecipients(updateGroup.getAdmins()),
 590                 updateGroup.getRemoveAdmins() == null
 591                         ? null
 592                         : recipientHelper.resolveRecipients(updateGroup.getRemoveAdmins()),
 593                 updateGroup.isResetGroupLink(),
 594                 updateGroup.getGroupLinkState(),
 595                 updateGroup.getAddMemberPermission(),
 596                 updateGroup.getEditDetailsPermission(),
 597                 updateGroup.getAvatarFile(),
 598                 updateGroup.getExpirationTimer(),
 599                 updateGroup.getIsAnnouncementGroup());
 600     }
 601
 602     @Override
 603     public Pair<GroupId, SendGroupMessageResults> joinGroup(
 604             GroupInviteLinkUrl inviteLinkUrl
 605     ) throws IOException, InactiveGroupLinkException {
 606         return groupHelper.joinGroup(inviteLinkUrl);
 607     }
 608
 609     private SendMessageResults sendMessage(
 610             SignalServiceDataMessage.Builder messageBuilder, Set<RecipientIdentifier> recipients
 611     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException {
 612         var results = new HashMap<RecipientIdentifier, List<SendMessageResult>>();
 613         long timestamp = System.currentTimeMillis();
 614         messageBuilder.withTimestamp(timestamp);
 615         for (final var recipient : recipients) {
 616             if (recipient instanceof RecipientIdentifier.Single single) {
 617                 final var recipientId = recipientHelper.resolveRecipient(single);
 618                 final var result = sendHelper.sendMessage(messageBuilder, recipientId);
 619                 results.put(recipient,
 620                         List.of(SendMessageResult.from(result,
 621                                 account.getRecipientStore(),
 622                                 account.getRecipientStore()::resolveRecipientAddress)));
 623             } else if (recipient instanceof RecipientIdentifier.NoteToSelf) {
 624                 final var result = sendHelper.sendSelfMessage(messageBuilder);
 625                 results.put(recipient,
 626                         List.of(SendMessageResult.from(result,
 627                                 account.getRecipientStore(),
 628                                 account.getRecipientStore()::resolveRecipientAddress)));
 629             } else if (recipient instanceof RecipientIdentifier.Group group) {
 630                 final var result = sendHelper.sendAsGroupMessage(messageBuilder, group.groupId());
 631                 results.put(recipient,
 632                         result.stream()
 633                                 .map(sendMessageResult -> SendMessageResult.from(sendMessageResult,
 634                                         account.getRecipientStore(),
 635                                         account.getRecipientStore()::resolveRecipientAddress))
 636                                 .toList());
 637             }
 638         }
 639         return new SendMessageResults(timestamp, results);
 640     }
 641
 642     private SendMessageResults sendTypingMessage(
 643             SignalServiceTypingMessage.Action action, Set<RecipientIdentifier> recipients
 644     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException {
 645         var results = new HashMap<RecipientIdentifier, List<SendMessageResult>>();
 646         final var timestamp = System.currentTimeMillis();
 647         for (var recipient : recipients) {
 648             if (recipient instanceof RecipientIdentifier.Single) {
 649                 final var message = new SignalServiceTypingMessage(action, timestamp, Optional.absent());
 650                 final var recipientId = recipientHelper.resolveRecipient((RecipientIdentifier.Single) recipient);
 651                 final var result = sendHelper.sendTypingMessage(message, recipientId);
 652                 results.put(recipient,
 653                         List.of(SendMessageResult.from(result,
 654                                 account.getRecipientStore(),
 655                                 account.getRecipientStore()::resolveRecipientAddress)));
 656             } else if (recipient instanceof RecipientIdentifier.Group) {
 657                 final var groupId = ((RecipientIdentifier.Group) recipient).groupId();
 658                 final var message = new SignalServiceTypingMessage(action, timestamp, Optional.of(groupId.serialize()));
 659                 final var result = sendHelper.sendGroupTypingMessage(message, groupId);
 660                 results.put(recipient,
 661                         result.stream()
 662                                 .map(r -> SendMessageResult.from(r,
 663                                         account.getRecipientStore(),
 664                                         account.getRecipientStore()::resolveRecipientAddress))
 665                                 .toList());
 666             }
 667         }
 668         return new SendMessageResults(timestamp, results);
 669     }
 670
 671     @Override
 672     public SendMessageResults sendTypingMessage(
 673             TypingAction action, Set<RecipientIdentifier> recipients
 674     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException {
 675         return sendTypingMessage(action.toSignalService(), recipients);
 676     }
 677
 678     @Override
 679     public SendMessageResults sendReadReceipt(
 680             RecipientIdentifier.Single sender, List<Long> messageIds
 681     ) throws IOException {
 682         final var timestamp = System.currentTimeMillis();
 683         var receiptMessage = new SignalServiceReceiptMessage(SignalServiceReceiptMessage.Type.READ,
 684                 messageIds,
 685                 timestamp);
 686
 687         final var result = sendHelper.sendReceiptMessage(receiptMessage, recipientHelper.resolveRecipient(sender));
 688         return new SendMessageResults(timestamp,
 689                 Map.of(sender,
 690                         List.of(SendMessageResult.from(result,
 691                                 account.getRecipientStore(),
 692                                 account.getRecipientStore()::resolveRecipientAddress))));
 693     }
 694
 695     @Override
 696     public SendMessageResults sendViewedReceipt(
 697             RecipientIdentifier.Single sender, List<Long> messageIds
 698     ) throws IOException {
 699         final var timestamp = System.currentTimeMillis();
 700         var receiptMessage = new SignalServiceReceiptMessage(SignalServiceReceiptMessage.Type.VIEWED,
 701                 messageIds,
 702                 timestamp);
 703
 704         final var result = sendHelper.sendReceiptMessage(receiptMessage, recipientHelper.resolveRecipient(sender));
 705         return new SendMessageResults(timestamp,
 706                 Map.of(sender,
 707                         List.of(SendMessageResult.from(result,
 708                                 account.getRecipientStore(),
 709                                 account.getRecipientStore()::resolveRecipientAddress))));
 710     }
 711
 712     @Override
 713     public SendMessageResults sendMessage(
 714             Message message, Set<RecipientIdentifier> recipients
 715     ) throws IOException, AttachmentInvalidException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException {
 716         final var messageBuilder = SignalServiceDataMessage.newBuilder();
 717         applyMessage(messageBuilder, message);
 718         return sendMessage(messageBuilder, recipients);
 719     }
 720
 721     private void applyMessage(
 722             final SignalServiceDataMessage.Builder messageBuilder, final Message message
 723     ) throws AttachmentInvalidException, IOException {
 724         messageBuilder.withBody(message.messageText());
 725         final var attachments = message.attachments();
 726         if (attachments != null) {
 727             messageBuilder.withAttachments(attachmentHelper.uploadAttachments(attachments));
 728         }
 729         if (message.mentions().size() > 0) {
 730             messageBuilder.withMentions(resolveMentions(message.mentions()));
 731         }
 732         if (message.quote().isPresent()) {
 733             final var quote = message.quote().get();
 734             messageBuilder.withQuote(new SignalServiceDataMessage.Quote(quote.timestamp(),
 735                     recipientHelper.resolveSignalServiceAddress(recipientHelper.resolveRecipient(quote.author())),
 736                     quote.message(),
 737                     List.of(),
 738                     resolveMentions(quote.mentions())));
 739         }
 740     }
 741
 742     private ArrayList<SignalServiceDataMessage.Mention> resolveMentions(final List<Message.Mention> mentionList) throws IOException {
 743         final var mentions = new ArrayList<SignalServiceDataMessage.Mention>();
 744         for (final var m : mentionList) {
 745             final var recipientId = recipientHelper.resolveRecipient(m.recipient());
 746             mentions.add(new SignalServiceDataMessage.Mention(recipientHelper.resolveSignalServiceAddress(recipientId)
 747                     .getAci(), m.start(), m.length()));
 748         }
 749         return mentions;
 750     }
 751
 752     @Override
 753     public SendMessageResults sendRemoteDeleteMessage(
 754             long targetSentTimestamp, Set<RecipientIdentifier> recipients
 755     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException {
 756         var delete = new SignalServiceDataMessage.RemoteDelete(targetSentTimestamp);
 757         final var messageBuilder = SignalServiceDataMessage.newBuilder().withRemoteDelete(delete);
 758         return sendMessage(messageBuilder, recipients);
 759     }
 760
 761     @Override
 762     public SendMessageResults sendMessageReaction(
 763             String emoji,
 764             boolean remove,
 765             RecipientIdentifier.Single targetAuthor,
 766             long targetSentTimestamp,
 767             Set<RecipientIdentifier> recipients
 768     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException {
 769         var targetAuthorRecipientId = recipientHelper.resolveRecipient(targetAuthor);
 770         var reaction = new SignalServiceDataMessage.Reaction(emoji,
 771                 remove,
 772                 recipientHelper.resolveSignalServiceAddress(targetAuthorRecipientId),
 773                 targetSentTimestamp);
 774         final var messageBuilder = SignalServiceDataMessage.newBuilder().withReaction(reaction);
 775         return sendMessage(messageBuilder, recipients);
 776     }
 777
 778     @Override
 779     public SendMessageResults sendEndSessionMessage(Set<RecipientIdentifier.Single> recipients) throws IOException {
 780         var messageBuilder = SignalServiceDataMessage.newBuilder().asEndSessionMessage();
 781
 782         try {
 783             return sendMessage(messageBuilder,
 784                     recipients.stream().map(RecipientIdentifier.class::cast).collect(Collectors.toSet()));
 785         } catch (GroupNotFoundException | NotAGroupMemberException | GroupSendingNotAllowedException e) {
 786             throw new AssertionError(e);
 787         } finally {
 788             for (var recipient : recipients) {
 789                 final var recipientId = recipientHelper.resolveRecipient(recipient);
 790                 account.getSessionStore().deleteAllSessions(recipientId);
 791             }
 792         }
 793     }
 794
 795     @Override
 796     public void deleteRecipient(final RecipientIdentifier.Single recipient) throws IOException {
 797         account.removeRecipient(recipientHelper.resolveRecipient(recipient));
 798     }
 799
 800     @Override
 801     public void deleteContact(final RecipientIdentifier.Single recipient) throws IOException {
 802         account.getContactStore().deleteContact(recipientHelper.resolveRecipient(recipient));
 803     }
 804
 805     @Override
 806     public void setContactName(
 807             RecipientIdentifier.Single recipient, String name
 808     ) throws NotMasterDeviceException, IOException {
 809         if (!account.isMasterDevice()) {
 810             throw new NotMasterDeviceException();
 811         }
 812         contactHelper.setContactName(recipientHelper.resolveRecipient(recipient), name);
 813     }
 814
 815     @Override
 816     public void setContactBlocked(
 817             RecipientIdentifier.Single recipient, boolean blocked
 818     ) throws NotMasterDeviceException, IOException {
 819         if (!account.isMasterDevice()) {
 820             throw new NotMasterDeviceException();
 821         }
 822         contactHelper.setContactBlocked(recipientHelper.resolveRecipient(recipient), blocked);
 823         // TODO cycle our profile key
 824         syncHelper.sendBlockedList();
 825     }
 826
 827     @Override
 828     public void setGroupBlocked(
 829             final GroupId groupId, final boolean blocked
 830     ) throws GroupNotFoundException, IOException, NotMasterDeviceException {
 831         if (!account.isMasterDevice()) {
 832             throw new NotMasterDeviceException();
 833         }
 834         groupHelper.setGroupBlocked(groupId, blocked);
 835         // TODO cycle our profile key
 836         syncHelper.sendBlockedList();
 837     }
 838
 839     /**
 840      * Change the expiration timer for a contact
 841      */
 842     @Override
 843     public void setExpirationTimer(
 844             RecipientIdentifier.Single recipient, int messageExpirationTimer
 845     ) throws IOException {
 846         var recipientId = recipientHelper.resolveRecipient(recipient);
 847         contactHelper.setExpirationTimer(recipientId, messageExpirationTimer);
 848         final var messageBuilder = SignalServiceDataMessage.newBuilder().asExpirationUpdate();
 849         try {
 850             sendMessage(messageBuilder, Set.of(recipient));
 851         } catch (NotAGroupMemberException | GroupNotFoundException | GroupSendingNotAllowedException e) {
 852             throw new AssertionError(e);
 853         }
 854     }
 855
 856     /**
 857      * Upload the sticker pack from path.
 858      *
 859      * @param path Path can be a path to a manifest.json file or to a zip file that contains a manifest.json file
 860      * @return if successful, returns the URL to install the sticker pack in the signal app
 861      */
 862     @Override
 863     public URI uploadStickerPack(File path) throws IOException, StickerPackInvalidException {
 864         var manifest = StickerUtils.getSignalServiceStickerManifestUpload(path);
 865
 866         var messageSender = dependencies.getMessageSender();
 867
 868         var packKey = KeyUtils.createStickerUploadKey();
 869         var packIdString = messageSender.uploadStickerManifest(manifest, packKey);
 870         var packId = StickerPackId.deserialize(Hex.fromStringCondensed(packIdString));
 871
 872         var sticker = new Sticker(packId, packKey);
 873         account.getStickerStore().updateSticker(sticker);
 874
 875         try {
 876             return new URI("https",
 877                     "signal.art",
 878                     "/addstickers/",
 879                     "pack_id="
 880                             + URLEncoder.encode(Hex.toStringCondensed(packId.serialize()), StandardCharsets.UTF_8)
 881                             + "&pack_key="
 882                             + URLEncoder.encode(Hex.toStringCondensed(packKey), StandardCharsets.UTF_8));
 883         } catch (URISyntaxException e) {
 884             throw new AssertionError(e);
 885         }
 886     }
 887
 888     @Override
 889     public void requestAllSyncData() throws IOException {
 890         syncHelper.requestAllSyncData();
 891         retrieveRemoteStorage();
 892     }
 893
 894     void retrieveRemoteStorage() throws IOException {
 895         if (account.getStorageKey() != null) {
 896             storageHelper.readDataFromStorage();
 897         }
 898     }
 899
 900     private void retryFailedReceivedMessages(ReceiveMessageHandler handler) {
 901         Set<HandleAction> queuedActions = new HashSet<>();
 902         for (var cachedMessage : account.getMessageCache().getCachedMessages()) {
 903             var actions = retryFailedReceivedMessage(handler, cachedMessage);
 904             if (actions != null) {
 905                 queuedActions.addAll(actions);
 906             }
 907         }
 908         handleQueuedActions(queuedActions);
 909     }
 910
 911     private List<HandleAction> retryFailedReceivedMessage(
 912             final ReceiveMessageHandler handler, final CachedMessage cachedMessage
 913     ) {
 914         var envelope = cachedMessage.loadEnvelope();
 915         if (envelope == null) {
 916             cachedMessage.delete();
 917             return null;
 918         }
 919
 920         final var result = incomingMessageHandler.handleRetryEnvelope(envelope, ignoreAttachments, handler);
 921         final var actions = result.first();
 922         final var exception = result.second();
 923
 924         if (exception instanceof UntrustedIdentityException) {
 925             if (System.currentTimeMillis() - envelope.getServerDeliveredTimestamp() > 1000L * 60 * 60 * 24 * 30) {
 926                 // Envelope is more than a month old, cleaning up.
 927                 cachedMessage.delete();
 928                 return null;
 929             }
 930             if (!envelope.hasSourceUuid()) {
 931                 final var identifier = ((UntrustedIdentityException) exception).getSender();
 932                 final var recipientId = account.getRecipientStore().resolveRecipient(identifier);
 933                 try {
 934                     account.getMessageCache().replaceSender(cachedMessage, recipientId);
 935                 } catch (IOException ioException) {
 936                     logger.warn("Failed to move cached message to recipient folder: {}", ioException.getMessage());
 937                 }
 938             }
 939             return null;
 940         }
 941
 942         // If successful and for all other errors that are not recoverable, delete the cached message
 943         cachedMessage.delete();
 944         return actions;
 945     }
 946
 947     @Override
 948     public void addReceiveHandler(final ReceiveMessageHandler handler, final boolean isWeakListener) {
 949         if (isReceivingSynchronous) {
 950             throw new IllegalStateException("Already receiving message synchronously.");
 951         }
 952         synchronized (messageHandlers) {
 953             if (isWeakListener) {
 954                 weakHandlers.add(handler);
 955             } else {
 956                 messageHandlers.add(handler);
 957                 startReceiveThreadIfRequired();
 958             }
 959         }
 960     }
 961
 962     private void startReceiveThreadIfRequired() {
 963         if (receiveThread != null) {
 964             return;
 965         }
 966         receiveThread = new Thread(() -> {
 967             logger.debug("Starting receiving messages");
 968             while (!Thread.interrupted()) {
 969                 try {
 970                     receiveMessagesInternal(Duration.ofMinutes(1), false, (envelope, e) -> {
 971                         synchronized (messageHandlers) {
 972                             Stream.concat(messageHandlers.stream(), weakHandlers.stream()).forEach(h -> {
 973                                 try {
 974                                     h.handleMessage(envelope, e);
 975                                 } catch (Exception ex) {
 976                                     logger.warn("Message handler failed, ignoring", ex);
 977                                 }
 978                             });
 979                         }
 980                     });
 981                     break;
 982                 } catch (IOException e) {
 983                     logger.warn("Receiving messages failed, retrying", e);
 984                 }
 985             }
 986             logger.debug("Finished receiving messages");
 987             hasCaughtUpWithOldMessages = false;
 988             synchronized (messageHandlers) {
 989                 receiveThread = null;
 990
 991                 // Check if in the meantime another handler has been registered
 992                 if (!messageHandlers.isEmpty()) {
 993                     logger.debug("Another handler has been registered, starting receive thread again");
 994                     startReceiveThreadIfRequired();
 995                 }
 996             }
 997         });
 998
 999         receiveThread.start();
1000     }
1001
1002     @Override
1003     public void removeReceiveHandler(final ReceiveMessageHandler handler) {
1004         final Thread thread;
1005         synchronized (messageHandlers) {
1006             weakHandlers.remove(handler);
1007             messageHandlers.remove(handler);
1008             if (!messageHandlers.isEmpty() || receiveThread == null || isReceivingSynchronous) {
1009                 return;
1010             }
1011             thread = receiveThread;
1012             receiveThread = null;
1013         }
1014
1015         stopReceiveThread(thread);
1016     }
1017
1018     private void stopReceiveThread(final Thread thread) {
1019         thread.interrupt();
1020         try {
1021             thread.join();
1022         } catch (InterruptedException ignored) {
1023         }
1024     }
1025
1026     @Override
1027     public boolean isReceiving() {
1028         if (isReceivingSynchronous) {
1029             return true;
1030         }
1031         synchronized (messageHandlers) {
1032             return messageHandlers.size() > 0;
1033         }
1034     }
1035
1036     @Override
1037     public void receiveMessages(Duration timeout, ReceiveMessageHandler handler) throws IOException {
1038         receiveMessages(timeout, true, handler);
1039     }
1040
1041     @Override
1042     public void receiveMessages(ReceiveMessageHandler handler) throws IOException {
1043         receiveMessages(Duration.ofMinutes(1), false, handler);
1044     }
1045
1046     private void receiveMessages(
1047             Duration timeout, boolean returnOnTimeout, ReceiveMessageHandler handler
1048     ) throws IOException {
1049         if (isReceiving()) {
1050             throw new IllegalStateException("Already receiving message.");
1051         }
1052         isReceivingSynchronous = true;
1053         receiveThread = Thread.currentThread();
1054         try {
1055             receiveMessagesInternal(timeout, returnOnTimeout, handler);
1056         } finally {
1057             receiveThread = null;
1058             hasCaughtUpWithOldMessages = false;
1059             isReceivingSynchronous = false;
1060         }
1061     }
1062
1063     private void receiveMessagesInternal(
1064             Duration timeout, boolean returnOnTimeout, ReceiveMessageHandler handler
1065     ) throws IOException {
1066         needsToRetryFailedMessages = true;
1067
1068         // Use a Map here because java Set doesn't have a get method ...
1069         Map<HandleAction, HandleAction> queuedActions = new HashMap<>();
1070
1071         final var signalWebSocket = dependencies.getSignalWebSocket();
1072         final var webSocketStateDisposable = Observable.merge(signalWebSocket.getUnidentifiedWebSocketState(),
1073                         signalWebSocket.getWebSocketState())
1074                 .subscribeOn(Schedulers.computation())
1075                 .observeOn(Schedulers.computation())
1076                 .distinctUntilChanged()
1077                 .subscribe(this::onWebSocketStateChange);
1078         signalWebSocket.connect();
1079
1080         hasCaughtUpWithOldMessages = false;
1081         var backOffCounter = 0;
1082         final var MAX_BACKOFF_COUNTER = 9;
1083
1084         while (!Thread.interrupted()) {
1085             if (needsToRetryFailedMessages) {
1086                 retryFailedReceivedMessages(handler);
1087                 needsToRetryFailedMessages = false;
1088             }
1089             SignalServiceEnvelope envelope;
1090             final CachedMessage[] cachedMessage = {null};
1091             final var nowMillis = System.currentTimeMillis();
1092             if (nowMillis - account.getLastReceiveTimestamp() > 60000) {
1093                 account.setLastReceiveTimestamp(nowMillis);
1094             }
1095             logger.debug("Checking for new message from server");
1096             try {
1097                 var result = signalWebSocket.readOrEmpty(timeout.toMillis(), envelope1 -> {
1098                     final var recipientId = envelope1.hasSourceUuid()
1099                             ? resolveRecipient(envelope1.getSourceAddress())
1100                             : null;
1101                     // store message on disk, before acknowledging receipt to the server
1102                     cachedMessage[0] = account.getMessageCache().cacheMessage(envelope1, recipientId);
1103                 });
1104                 backOffCounter = 0;
1105
1106                 if (result.isPresent()) {
1107                     envelope = result.get();
1108                     logger.debug("New message received from server");
1109                 } else {
1110                     logger.debug("Received indicator that server queue is empty");
1111                     handleQueuedActions(queuedActions.keySet());
1112                     queuedActions.clear();
1113
1114                     hasCaughtUpWithOldMessages = true;
1115                     synchronized (this) {
1116                         this.notifyAll();
1117                     }
1118
1119                     // Continue to wait another timeout for new messages
1120                     continue;
1121                 }
1122             } catch (AssertionError e) {
1123                 if (e.getCause() instanceof InterruptedException) {
1124                     Thread.currentThread().interrupt();
1125                     break;
1126                 } else {
1127                     throw e;
1128                 }
1129             } catch (IOException e) {
1130                 logger.debug("Pipe unexpectedly unavailable: {}", e.getMessage());
1131                 if (e instanceof WebSocketUnavailableException || "Connection closed!".equals(e.getMessage())) {
1132                     final var sleepMilliseconds = 100 * (long) Math.pow(2, backOffCounter);
1133                     backOffCounter = Math.min(backOffCounter + 1, MAX_BACKOFF_COUNTER);
1134                     logger.warn("Connection closed unexpectedly, reconnecting in {} ms", sleepMilliseconds);
1135                     try {
1136                         Thread.sleep(sleepMilliseconds);
1137                     } catch (InterruptedException interruptedException) {
1138                         return;
1139                     }
1140                     hasCaughtUpWithOldMessages = false;
1141                     signalWebSocket.connect();
1142                     continue;
1143                 }
1144                 throw e;
1145             } catch (TimeoutException e) {
1146                 backOffCounter = 0;
1147                 if (returnOnTimeout) return;
1148                 continue;
1149             }
1150
1151             final var result = incomingMessageHandler.handleEnvelope(envelope, ignoreAttachments, handler);
1152             for (final var h : result.first()) {
1153                 final var existingAction = queuedActions.get(h);
1154                 if (existingAction == null) {
1155                     queuedActions.put(h, h);
1156                 } else {
1157                     existingAction.mergeOther(h);
1158                 }
1159             }
1160             final var exception = result.second();
1161
1162             if (hasCaughtUpWithOldMessages) {
1163                 handleQueuedActions(queuedActions.keySet());
1164                 queuedActions.clear();
1165             }
1166             if (cachedMessage[0] != null) {
1167                 if (exception instanceof UntrustedIdentityException) {
1168                     logger.debug("Keeping message with untrusted identity in message cache");
1169                     final var address = ((UntrustedIdentityException) exception).getSender();
1170                     final var recipientId = account.getRecipientStore().resolveRecipient(address);
1171                     if (!envelope.hasSourceUuid()) {
1172                         try {
1173                             cachedMessage[0] = account.getMessageCache().replaceSender(cachedMessage[0], recipientId);
1174                         } catch (IOException ioException) {
1175                             logger.warn("Failed to move cached message to recipient folder: {}",
1176                                     ioException.getMessage());
1177                         }
1178                     }
1179                 } else {
1180                     cachedMessage[0].delete();
1181                 }
1182             }
1183         }
1184         handleQueuedActions(queuedActions.keySet());
1185         queuedActions.clear();
1186         dependencies.getSignalWebSocket().disconnect();
1187         webSocketStateDisposable.dispose();
1188     }
1189
1190     private void onWebSocketStateChange(final WebSocketConnectionState s) {
1191         if (s.equals(WebSocketConnectionState.AUTHENTICATION_FAILED)) {
1192             account.setRegistered(false);
1193             try {
1194                 close();
1195             } catch (IOException e) {
1196                 e.printStackTrace();
1197             }
1198         }
1199     }
1200
1201     @Override
1202     public void setIgnoreAttachments(final boolean ignoreAttachments) {
1203         this.ignoreAttachments = ignoreAttachments;
1204     }
1205
1206     @Override
1207     public boolean hasCaughtUpWithOldMessages() {
1208         return hasCaughtUpWithOldMessages;
1209     }
1210
1211     private void handleQueuedActions(final Collection<HandleAction> queuedActions) {
1212         logger.debug("Handling message actions");
1213         var interrupted = false;
1214         for (var action : queuedActions) {
1215             logger.debug("Executing action {}", action.getClass().getSimpleName());
1216             try {
1217                 action.execute(context);
1218             } catch (Throwable e) {
1219                 if ((e instanceof AssertionError || e instanceof RuntimeException)
1220                         && e.getCause() instanceof InterruptedException) {
1221                     interrupted = true;
1222                     continue;
1223                 }
1224                 logger.warn("Message action failed.", e);
1225             }
1226         }
1227         if (interrupted) {
1228             Thread.currentThread().interrupt();
1229         }
1230     }
1231
1232     @Override
1233     public boolean isContactBlocked(final RecipientIdentifier.Single recipient) {
1234         final RecipientId recipientId;
1235         try {
1236             recipientId = recipientHelper.resolveRecipient(recipient);
1237         } catch (IOException e) {
1238             return false;
1239         }
1240         return contactHelper.isContactBlocked(recipientId);
1241     }
1242
1243     @Override
1244     public void sendContacts() throws IOException {
1245         syncHelper.sendContacts();
1246     }
1247
1248     @Override
1249     public List<Pair<RecipientAddress, Contact>> getContacts() {
1250         return account.getContactStore()
1251                 .getContacts()
1252                 .stream()
1253                 .map(p -> new Pair<>(account.getRecipientStore().resolveRecipientAddress(p.first()), p.second()))
1254                 .toList();
1255     }
1256
1257     @Override
1258     public String getContactOrProfileName(RecipientIdentifier.Single recipient) {
1259         final RecipientId recipientId;
1260         try {
1261             recipientId = recipientHelper.resolveRecipient(recipient);
1262         } catch (IOException e) {
1263             return null;
1264         }
1265
1266         final var contact = account.getContactStore().getContact(recipientId);
1267         if (contact != null && !Util.isEmpty(contact.getName())) {
1268             return contact.getName();
1269         }
1270
1271         final var profile = getRecipientProfile(recipientId);
1272         if (profile != null) {
1273             return profile.getDisplayName();
1274         }
1275
1276         return null;
1277     }
1278
1279     @Override
1280     public Group getGroup(GroupId groupId) {
1281         return toGroup(groupHelper.getGroup(groupId));
1282     }
1283
1284     private GroupInfo getGroupInfo(GroupId groupId) {
1285         return groupHelper.getGroup(groupId);
1286     }
1287
1288     @Override
1289     public List<Identity> getIdentities() {
1290         return account.getIdentityKeyStore().getIdentities().stream().map(this::toIdentity).toList();
1291     }
1292
1293     private Identity toIdentity(final IdentityInfo identityInfo) {
1294         if (identityInfo == null) {
1295             return null;
1296         }
1297
1298         final var address = account.getRecipientStore().resolveRecipientAddress(identityInfo.getRecipientId());
1299         final var scannableFingerprint = identityHelper.computeSafetyNumberForScanning(identityInfo.getRecipientId(),
1300                 identityInfo.getIdentityKey());
1301         return new Identity(address,
1302                 identityInfo.getIdentityKey(),
1303                 identityHelper.computeSafetyNumber(identityInfo.getRecipientId(), identityInfo.getIdentityKey()),
1304                 scannableFingerprint == null ? null : scannableFingerprint.getSerialized(),
1305                 identityInfo.getTrustLevel(),
1306                 identityInfo.getDateAdded());
1307     }
1308
1309     @Override
1310     public List<Identity> getIdentities(RecipientIdentifier.Single recipient) {
1311         IdentityInfo identity;
1312         try {
1313             identity = account.getIdentityKeyStore().getIdentity(recipientHelper.resolveRecipient(recipient));
1314         } catch (IOException e) {
1315             identity = null;
1316         }
1317         return identity == null ? List.of() : List.of(toIdentity(identity));
1318     }
1319
1320     /**
1321      * Trust this the identity with this fingerprint
1322      *
1323      * @param recipient   account of the identity
1324      * @param fingerprint Fingerprint
1325      */
1326     @Override
1327     public boolean trustIdentityVerified(RecipientIdentifier.Single recipient, byte[] fingerprint) {
1328         RecipientId recipientId;
1329         try {
1330             recipientId = recipientHelper.resolveRecipient(recipient);
1331         } catch (IOException e) {
1332             return false;
1333         }
1334         final var updated = identityHelper.trustIdentityVerified(recipientId, fingerprint);
1335         if (updated && this.isReceiving()) {
1336             needsToRetryFailedMessages = true;
1337         }
1338         return updated;
1339     }
1340
1341     /**
1342      * Trust this the identity with this safety number
1343      *
1344      * @param recipient    account of the identity
1345      * @param safetyNumber Safety number
1346      */
1347     @Override
1348     public boolean trustIdentityVerifiedSafetyNumber(RecipientIdentifier.Single recipient, String safetyNumber) {
1349         RecipientId recipientId;
1350         try {
1351             recipientId = recipientHelper.resolveRecipient(recipient);
1352         } catch (IOException e) {
1353             return false;
1354         }
1355         final var updated = identityHelper.trustIdentityVerifiedSafetyNumber(recipientId, safetyNumber);
1356         if (updated && this.isReceiving()) {
1357             needsToRetryFailedMessages = true;
1358         }
1359         return updated;
1360     }
1361
1362     /**
1363      * Trust this the identity with this scannable safety number
1364      *
1365      * @param recipient    account of the identity
1366      * @param safetyNumber Scannable safety number
1367      */
1368     @Override
1369     public boolean trustIdentityVerifiedSafetyNumber(RecipientIdentifier.Single recipient, byte[] safetyNumber) {
1370         RecipientId recipientId;
1371         try {
1372             recipientId = recipientHelper.resolveRecipient(recipient);
1373         } catch (IOException e) {
1374             return false;
1375         }
1376         final var updated = identityHelper.trustIdentityVerifiedSafetyNumber(recipientId, safetyNumber);
1377         if (updated && this.isReceiving()) {
1378             needsToRetryFailedMessages = true;
1379         }
1380         return updated;
1381     }
1382
1383     /**
1384      * Trust all keys of this identity without verification
1385      *
1386      * @param recipient account of the identity
1387      */
1388     @Override
1389     public boolean trustIdentityAllKeys(RecipientIdentifier.Single recipient) {
1390         RecipientId recipientId;
1391         try {
1392             recipientId = recipientHelper.resolveRecipient(recipient);
1393         } catch (IOException e) {
1394             return false;
1395         }
1396         final var updated = identityHelper.trustIdentityAllKeys(recipientId);
1397         if (updated && this.isReceiving()) {
1398             needsToRetryFailedMessages = true;
1399         }
1400         return updated;
1401     }
1402
1403     @Override
1404     public void addClosedListener(final Runnable listener) {
1405         synchronized (closedListeners) {
1406             closedListeners.add(listener);
1407         }
1408     }
1409
1410     private void handleIdentityFailure(
1411             final RecipientId recipientId,
1412             final org.whispersystems.signalservice.api.messages.SendMessageResult.IdentityFailure identityFailure
1413     ) {
1414         this.identityHelper.handleIdentityFailure(recipientId, identityFailure);
1415     }
1416
1417     private RecipientId resolveRecipient(SignalServiceAddress address) {
1418         return account.getRecipientStore().resolveRecipient(address);
1419     }
1420
1421     @Override
1422     public void close() throws IOException {
1423         Thread thread;
1424         synchronized (messageHandlers) {
1425             weakHandlers.clear();
1426             messageHandlers.clear();
1427             thread = receiveThread;
1428             receiveThread = null;
1429         }
1430         if (thread != null) {
1431             stopReceiveThread(thread);
1432         }
1433         executor.shutdown();
1434
1435         dependencies.getSignalWebSocket().disconnect();
1436
1437         synchronized (closedListeners) {
1438             closedListeners.forEach(Runnable::run);
1439             closedListeners.clear();
1440         }
1441
1442         if (account != null) {
1443             account.close();
1444         }
1445         account = null;
1446     }
1447 }