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

   1 package org.asamk.signal.manager.storage.recipients;
   2
   3 import com.fasterxml.jackson.databind.ObjectMapper;
   4
   5 import org.asamk.signal.manager.api.Pair;
   6 import org.asamk.signal.manager.api.UnregisteredRecipientException;
   7 import org.asamk.signal.manager.storage.Utils;
   8 import org.asamk.signal.manager.storage.contacts.ContactsStore;
   9 import org.asamk.signal.manager.storage.profiles.ProfileStore;
  10 import org.signal.zkgroup.InvalidInputException;
  11 import org.signal.zkgroup.profiles.ProfileKey;
  12 import org.signal.zkgroup.profiles.ProfileKeyCredential;
  13 import org.slf4j.Logger;
  14 import org.slf4j.LoggerFactory;
  15 import org.whispersystems.signalservice.api.push.ACI;
  16 import org.whispersystems.signalservice.api.push.ServiceId;
  17 import org.whispersystems.signalservice.api.push.SignalServiceAddress;
  18 import org.whispersystems.signalservice.api.util.UuidUtil;
  19
  20 import java.io.ByteArrayInputStream;
  21 import java.io.ByteArrayOutputStream;
  22 import java.io.File;
  23 import java.io.FileInputStream;
  24 import java.io.FileNotFoundException;
  25 import java.io.FileOutputStream;
  26 import java.io.IOException;
  27 import java.util.ArrayList;
  28 import java.util.Base64;
  29 import java.util.HashMap;
  30 import java.util.List;
  31 import java.util.Map;
  32 import java.util.Objects;
  33 import java.util.Optional;
  34 import java.util.Set;
  35 import java.util.UUID;
  36 import java.util.function.Supplier;
  37 import java.util.stream.Collectors;
  38
  39 public class RecipientStore implements RecipientResolver, ContactsStore, ProfileStore {
  40
  41     private final static Logger logger = LoggerFactory.getLogger(RecipientStore.class);
  42
  43     private final ObjectMapper objectMapper;
  44     private final File file;
  45     private final RecipientMergeHandler recipientMergeHandler;
  46     private final SelfAddressProvider selfAddressProvider;
  47
  48     private final Map<RecipientId, Recipient> recipients;
  49     private final Map<Long, Long> recipientsMerged = new HashMap<>();
  50
  51     private long lastId;
  52     private boolean isBulkUpdating;
  53
  54     public static RecipientStore load(
  55             File file, RecipientMergeHandler recipientMergeHandler, SelfAddressProvider selfAddressProvider
  56     ) {
  57         final var objectMapper = Utils.createStorageObjectMapper();
  58         try (var inputStream = new FileInputStream(file)) {
  59             final var storage = objectMapper.readValue(inputStream, Storage.class);
  60
  61             final var recipientStore = new RecipientStore(objectMapper,
  62                     file,
  63                     recipientMergeHandler,
  64                     selfAddressProvider,
  65                     new HashMap<>(),
  66                     storage.lastId);
  67             final var recipients = storage.recipients.stream().map(r -> {
  68                 final var recipientId = new RecipientId(r.id, recipientStore);
  69                 final var address = new RecipientAddress(Optional.ofNullable(r.uuid).map(UuidUtil::parseOrThrow),
  70                         Optional.ofNullable(r.number));
  71
  72                 Contact contact = null;
  73                 if (r.contact != null) {
  74                     contact = new Contact(r.contact.name,
  75                             r.contact.color,
  76                             r.contact.messageExpirationTime,
  77                             r.contact.blocked,
  78                             r.contact.archived);
  79                 }
  80
  81                 ProfileKey profileKey = null;
  82                 if (r.profileKey != null) {
  83                     try {
  84                         profileKey = new ProfileKey(Base64.getDecoder().decode(r.profileKey));
  85                     } catch (InvalidInputException ignored) {
  86                     }
  87                 }
  88
  89                 ProfileKeyCredential profileKeyCredential = null;
  90                 if (r.profileKeyCredential != null) {
  91                     try {
  92                         profileKeyCredential = new ProfileKeyCredential(Base64.getDecoder()
  93                                 .decode(r.profileKeyCredential));
  94                     } catch (Throwable ignored) {
  95                     }
  96                 }
  97
  98                 Profile profile = null;
  99                 if (r.profile != null) {
 100                     profile = new Profile(r.profile.lastUpdateTimestamp,
 101                             r.profile.givenName,
 102                             r.profile.familyName,
 103                             r.profile.about,
 104                             r.profile.aboutEmoji,
 105                             r.profile.avatarUrlPath,
 106                             Profile.UnidentifiedAccessMode.valueOfOrUnknown(r.profile.unidentifiedAccessMode),
 107                             r.profile.capabilities.stream()
 108                                     .map(Profile.Capability::valueOfOrNull)
 109                                     .filter(Objects::nonNull)
 110                                     .collect(Collectors.toSet()));
 111                 }
 112
 113                 return new Recipient(recipientId, address, contact, profileKey, profileKeyCredential, profile);
 114             }).collect(Collectors.toMap(Recipient::getRecipientId, r -> r));
 115
 116             recipientStore.addRecipients(recipients);
 117
 118             return recipientStore;
 119         } catch (FileNotFoundException e) {
 120             logger.trace("Creating new recipient store.");
 121             return new RecipientStore(objectMapper,
 122                     file,
 123                     recipientMergeHandler,
 124                     selfAddressProvider,
 125                     new HashMap<>(),
 126                     0);
 127         } catch (IOException e) {
 128             logger.warn("Failed to load recipient store", e);
 129             throw new RuntimeException(e);
 130         }
 131     }
 132
 133     private RecipientStore(
 134             final ObjectMapper objectMapper,
 135             final File file,
 136             final RecipientMergeHandler recipientMergeHandler,
 137             final SelfAddressProvider selfAddressProvider,
 138             final Map<RecipientId, Recipient> recipients,
 139             final long lastId
 140     ) {
 141         this.objectMapper = objectMapper;
 142         this.file = file;
 143         this.recipientMergeHandler = recipientMergeHandler;
 144         this.selfAddressProvider = selfAddressProvider;
 145         this.recipients = recipients;
 146         this.lastId = lastId;
 147     }
 148
 149     public boolean isBulkUpdating() {
 150         return isBulkUpdating;
 151     }
 152
 153     public void setBulkUpdating(final boolean bulkUpdating) {
 154         isBulkUpdating = bulkUpdating;
 155         if (!bulkUpdating) {
 156             synchronized (recipients) {
 157                 saveLocked();
 158             }
 159         }
 160     }
 161
 162     public RecipientAddress resolveRecipientAddress(RecipientId recipientId) {
 163         synchronized (recipients) {
 164             return getRecipient(recipientId).getAddress();
 165         }
 166     }
 167
 168     public Recipient getRecipient(RecipientId recipientId) {
 169         synchronized (recipients) {
 170             return recipients.get(recipientId);
 171         }
 172     }
 173
 174     @Override
 175     public RecipientId resolveRecipient(ServiceId serviceId) {
 176         return resolveRecipient(new RecipientAddress(serviceId.uuid()), false, false);
 177     }
 178
 179     @Override
 180     public RecipientId resolveRecipient(final long recipientId) {
 181         final var recipient = getRecipient(new RecipientId(recipientId, this));
 182         return recipient == null ? null : recipient.getRecipientId();
 183     }
 184
 185     @Override
 186     public RecipientId resolveRecipient(final String identifier) {
 187         return resolveRecipient(Utils.getRecipientAddressFromIdentifier(identifier), false, false);
 188     }
 189
 190     public RecipientId resolveRecipient(
 191             final String number, Supplier<ACI> aciSupplier
 192     ) throws UnregisteredRecipientException {
 193         final Optional<Recipient> byNumber;
 194         synchronized (recipients) {
 195             byNumber = findByNumberLocked(number);
 196         }
 197         if (byNumber.isEmpty() || byNumber.get().getAddress().uuid().isEmpty()) {
 198             final var aci = aciSupplier.get();
 199             if (aci == null) {
 200                 throw new UnregisteredRecipientException(new RecipientAddress(null, number));
 201             }
 202
 203             return resolveRecipient(new RecipientAddress(aci.uuid(), number), false, false);
 204         }
 205         return byNumber.get().getRecipientId();
 206     }
 207
 208     public RecipientId resolveRecipient(RecipientAddress address) {
 209         return resolveRecipient(address, false, false);
 210     }
 211
 212     @Override
 213     public RecipientId resolveRecipient(final SignalServiceAddress address) {
 214         return resolveRecipient(new RecipientAddress(address), false, false);
 215     }
 216
 217     public RecipientId resolveSelfRecipientTrusted(RecipientAddress address) {
 218         return resolveRecipient(address, true, true);
 219     }
 220
 221     public RecipientId resolveRecipientTrusted(RecipientAddress address) {
 222         return resolveRecipient(address, true, false);
 223     }
 224
 225     public RecipientId resolveRecipientTrusted(SignalServiceAddress address) {
 226         return resolveRecipient(new RecipientAddress(address), true, false);
 227     }
 228
 229     public List<RecipientId> resolveRecipientsTrusted(List<RecipientAddress> addresses) {
 230         final List<RecipientId> recipientIds;
 231         final List<Pair<RecipientId, RecipientId>> toBeMerged = new ArrayList<>();
 232         synchronized (recipients) {
 233             recipientIds = addresses.stream().map(address -> {
 234                 final var pair = resolveRecipientLocked(address, true, false);
 235                 if (pair.second().isPresent()) {
 236                     toBeMerged.add(new Pair<>(pair.first(), pair.second().get()));
 237                 }
 238                 return pair.first();
 239             }).toList();
 240         }
 241         for (var pair : toBeMerged) {
 242             recipientMergeHandler.mergeRecipients(pair.first(), pair.second());
 243         }
 244         return recipientIds;
 245     }
 246
 247     @Override
 248     public void storeContact(RecipientId recipientId, final Contact contact) {
 249         synchronized (recipients) {
 250             final var recipient = recipients.get(recipientId);
 251             storeRecipientLocked(recipientId, Recipient.newBuilder(recipient).withContact(contact).build());
 252         }
 253     }
 254
 255     @Override
 256     public Contact getContact(RecipientId recipientId) {
 257         final var recipient = getRecipient(recipientId);
 258         return recipient == null ? null : recipient.getContact();
 259     }
 260
 261     @Override
 262     public List<Pair<RecipientId, Contact>> getContacts() {
 263         return recipients.entrySet()
 264                 .stream()
 265                 .filter(e -> e.getValue().getContact() != null)
 266                 .map(e -> new Pair<>(e.getKey(), e.getValue().getContact()))
 267                 .toList();
 268     }
 269
 270     @Override
 271     public void deleteContact(RecipientId recipientId) {
 272         synchronized (recipients) {
 273             final var recipient = recipients.get(recipientId);
 274             storeRecipientLocked(recipientId, Recipient.newBuilder(recipient).withContact(null).build());
 275         }
 276     }
 277
 278     public void deleteRecipientData(RecipientId recipientId) {
 279         synchronized (recipients) {
 280             logger.debug("Deleting recipient data for {}", recipientId);
 281             final var recipient = recipients.get(recipientId);
 282             storeRecipientLocked(recipientId,
 283                     Recipient.newBuilder()
 284                             .withRecipientId(recipientId)
 285                             .withAddress(new RecipientAddress(recipient.getAddress().uuid().orElse(null)))
 286                             .build());
 287         }
 288     }
 289
 290     @Override
 291     public Profile getProfile(final RecipientId recipientId) {
 292         final var recipient = getRecipient(recipientId);
 293         return recipient == null ? null : recipient.getProfile();
 294     }
 295
 296     @Override
 297     public ProfileKey getProfileKey(final RecipientId recipientId) {
 298         final var recipient = getRecipient(recipientId);
 299         return recipient == null ? null : recipient.getProfileKey();
 300     }
 301
 302     @Override
 303     public ProfileKeyCredential getProfileKeyCredential(final RecipientId recipientId) {
 304         final var recipient = getRecipient(recipientId);
 305         return recipient == null ? null : recipient.getProfileKeyCredential();
 306     }
 307
 308     @Override
 309     public void storeProfile(RecipientId recipientId, final Profile profile) {
 310         synchronized (recipients) {
 311             final var recipient = recipients.get(recipientId);
 312             storeRecipientLocked(recipientId, Recipient.newBuilder(recipient).withProfile(profile).build());
 313         }
 314     }
 315
 316     @Override
 317     public void storeProfileKey(RecipientId recipientId, final ProfileKey profileKey) {
 318         synchronized (recipients) {
 319             final var recipient = recipients.get(recipientId);
 320             if (profileKey != null && profileKey.equals(recipient.getProfileKey()) && (
 321                     recipient.getProfile() == null || (
 322                             recipient.getProfile().getUnidentifiedAccessMode() != Profile.UnidentifiedAccessMode.UNKNOWN
 323                                     && recipient.getProfile().getUnidentifiedAccessMode()
 324                                     != Profile.UnidentifiedAccessMode.DISABLED
 325                     )
 326             )) {
 327                 return;
 328             }
 329
 330             final var newRecipient = Recipient.newBuilder(recipient)
 331                     .withProfileKey(profileKey)
 332                     .withProfileKeyCredential(null)
 333                     .withProfile(recipient.getProfile() == null
 334                             ? null
 335                             : Profile.newBuilder(recipient.getProfile()).withLastUpdateTimestamp(0).build())
 336                     .build();
 337             storeRecipientLocked(recipientId, newRecipient);
 338         }
 339     }
 340
 341     @Override
 342     public void storeProfileKeyCredential(RecipientId recipientId, final ProfileKeyCredential profileKeyCredential) {
 343         synchronized (recipients) {
 344             final var recipient = recipients.get(recipientId);
 345             storeRecipientLocked(recipientId,
 346                     Recipient.newBuilder(recipient).withProfileKeyCredential(profileKeyCredential).build());
 347         }
 348     }
 349
 350     public boolean isEmpty() {
 351         synchronized (recipients) {
 352             return recipients.isEmpty();
 353         }
 354     }
 355
 356     private void addRecipients(final Map<RecipientId, Recipient> recipients) {
 357         this.recipients.putAll(recipients);
 358     }
 359
 360     /**
 361      * @param isHighTrust true, if the number/uuid connection was obtained from a trusted source.
 362      *                    Has no effect, if the address contains only a number or a uuid.
 363      */
 364     private RecipientId resolveRecipient(RecipientAddress address, boolean isHighTrust, boolean isSelf) {
 365         final Pair<RecipientId, Optional<RecipientId>> pair;
 366         synchronized (recipients) {
 367             pair = resolveRecipientLocked(address, isHighTrust, isSelf);
 368         }
 369
 370         if (pair.second().isPresent()) {
 371             recipientMergeHandler.mergeRecipients(pair.first(), pair.second().get());
 372         }
 373         return pair.first();
 374     }
 375
 376     private Pair<RecipientId, Optional<RecipientId>> resolveRecipientLocked(
 377             RecipientAddress address, boolean isHighTrust, boolean isSelf
 378     ) {
 379         if (isHighTrust && !isSelf) {
 380             if (selfAddressProvider.getSelfAddress().matches(address)) {
 381                 isHighTrust = false;
 382             }
 383         }
 384         final var byNumber = address.number().isEmpty()
 385                 ? Optional.<Recipient>empty()
 386                 : findByNumberLocked(address.number().get());
 387         final var byUuid = address.uuid().isEmpty()
 388                 ? Optional.<Recipient>empty()
 389                 : findByUuidLocked(address.uuid().get());
 390
 391         if (byNumber.isEmpty() && byUuid.isEmpty()) {
 392             logger.debug("Got new recipient, both uuid and number are unknown");
 393
 394             if (isHighTrust || address.uuid().isEmpty() || address.number().isEmpty()) {
 395                 return new Pair<>(addNewRecipientLocked(address), Optional.empty());
 396             }
 397
 398             return new Pair<>(addNewRecipientLocked(new RecipientAddress(address.uuid().get())), Optional.empty());
 399         }
 400
 401         if (!isHighTrust || address.uuid().isEmpty() || address.number().isEmpty() || byNumber.equals(byUuid)) {
 402             return new Pair<>(byUuid.or(() -> byNumber).map(Recipient::getRecipientId).get(), Optional.empty());
 403         }
 404
 405         if (byNumber.isEmpty()) {
 406             logger.debug("Got recipient {} existing with uuid, updating with high trust number",
 407                     byUuid.get().getRecipientId());
 408             updateRecipientAddressLocked(byUuid.get().getRecipientId(), address);
 409             return new Pair<>(byUuid.get().getRecipientId(), Optional.empty());
 410         }
 411
 412         final var byNumberRecipient = byNumber.get();
 413
 414         if (byUuid.isEmpty()) {
 415             if (byNumberRecipient.getAddress().uuid().isPresent()) {
 416                 logger.debug(
 417                         "Got recipient {} existing with number, but different uuid, so stripping its number and adding new recipient",
 418                         byNumberRecipient.getRecipientId());
 419
 420                 updateRecipientAddressLocked(byNumberRecipient.getRecipientId(),
 421                         new RecipientAddress(byNumberRecipient.getAddress().uuid().get()));
 422                 return new Pair<>(addNewRecipientLocked(address), Optional.empty());
 423             }
 424
 425             logger.debug("Got recipient {} existing with number and no uuid, updating with high trust uuid",
 426                     byNumberRecipient.getRecipientId());
 427             updateRecipientAddressLocked(byNumberRecipient.getRecipientId(), address);
 428             return new Pair<>(byNumberRecipient.getRecipientId(), Optional.empty());
 429         }
 430
 431         final var byUuidRecipient = byUuid.get();
 432
 433         if (byNumberRecipient.getAddress().uuid().isPresent()) {
 434             logger.debug(
 435                     "Got separate recipients for high trust number {} and uuid {}, recipient for number has different uuid, so stripping its number",
 436                     byNumberRecipient.getRecipientId(),
 437                     byUuidRecipient.getRecipientId());
 438
 439             updateRecipientAddressLocked(byNumberRecipient.getRecipientId(),
 440                     new RecipientAddress(byNumberRecipient.getAddress().uuid().get()));
 441             updateRecipientAddressLocked(byUuidRecipient.getRecipientId(), address);
 442             return new Pair<>(byUuidRecipient.getRecipientId(), Optional.empty());
 443         }
 444
 445         logger.debug("Got separate recipients for high trust number {} and uuid {}, need to merge them",
 446                 byNumberRecipient.getRecipientId(),
 447                 byUuidRecipient.getRecipientId());
 448         updateRecipientAddressLocked(byUuidRecipient.getRecipientId(), address);
 449         // Create a fixed RecipientId that won't update its id after merge
 450         final var toBeMergedRecipientId = new RecipientId(byNumberRecipient.getRecipientId().id(), null);
 451         mergeRecipientsLocked(byUuidRecipient.getRecipientId(), toBeMergedRecipientId);
 452         return new Pair<>(byUuidRecipient.getRecipientId(), Optional.of(toBeMergedRecipientId));
 453     }
 454
 455     private RecipientId addNewRecipientLocked(final RecipientAddress address) {
 456         final var nextRecipientId = nextIdLocked();
 457         logger.debug("Adding new recipient {} with address {}", nextRecipientId, address);
 458         storeRecipientLocked(nextRecipientId, new Recipient(nextRecipientId, address, null, null, null, null));
 459         return nextRecipientId;
 460     }
 461
 462     private void updateRecipientAddressLocked(RecipientId recipientId, final RecipientAddress address) {
 463         final var recipient = recipients.get(recipientId);
 464         storeRecipientLocked(recipientId, Recipient.newBuilder(recipient).withAddress(address).build());
 465     }
 466
 467     long getActualRecipientId(long recipientId) {
 468         while (recipientsMerged.containsKey(recipientId)) {
 469             final var newRecipientId = recipientsMerged.get(recipientId);
 470             logger.debug("Using {} instead of {}, because recipients have been merged", newRecipientId, recipientId);
 471             recipientId = newRecipientId;
 472         }
 473         return recipientId;
 474     }
 475
 476     private void storeRecipientLocked(final RecipientId recipientId, final Recipient recipient) {
 477         final var existingRecipient = recipients.get(recipientId);
 478         if (existingRecipient == null || !existingRecipient.equals(recipient)) {
 479             recipients.put(recipientId, recipient);
 480             saveLocked();
 481         }
 482     }
 483
 484     private void mergeRecipientsLocked(RecipientId recipientId, RecipientId toBeMergedRecipientId) {
 485         final var recipient = recipients.get(recipientId);
 486         final var toBeMergedRecipient = recipients.get(toBeMergedRecipientId);
 487         recipients.put(recipientId,
 488                 new Recipient(recipientId,
 489                         recipient.getAddress(),
 490                         recipient.getContact() != null ? recipient.getContact() : toBeMergedRecipient.getContact(),
 491                         recipient.getProfileKey() != null
 492                                 ? recipient.getProfileKey()
 493                                 : toBeMergedRecipient.getProfileKey(),
 494                         recipient.getProfileKeyCredential() != null
 495                                 ? recipient.getProfileKeyCredential()
 496                                 : toBeMergedRecipient.getProfileKeyCredential(),
 497                         recipient.getProfile() != null ? recipient.getProfile() : toBeMergedRecipient.getProfile()));
 498         recipients.remove(toBeMergedRecipientId);
 499         recipientsMerged.put(toBeMergedRecipientId.id(), recipientId.id());
 500         saveLocked();
 501     }
 502
 503     private Optional<Recipient> findByNumberLocked(final String number) {
 504         return recipients.entrySet()
 505                 .stream()
 506                 .filter(entry -> entry.getValue().getAddress().number().isPresent() && number.equals(entry.getValue()
 507                         .getAddress()
 508                         .number()
 509                         .get()))
 510                 .findFirst()
 511                 .map(Map.Entry::getValue);
 512     }
 513
 514     private Optional<Recipient> findByUuidLocked(final UUID uuid) {
 515         return recipients.entrySet()
 516                 .stream()
 517                 .filter(entry -> entry.getValue().getAddress().uuid().isPresent() && uuid.equals(entry.getValue()
 518                         .getAddress()
 519                         .uuid()
 520                         .get()))
 521                 .findFirst()
 522                 .map(Map.Entry::getValue);
 523     }
 524
 525     private RecipientId nextIdLocked() {
 526         return new RecipientId(++this.lastId, this);
 527     }
 528
 529     private void saveLocked() {
 530         if (isBulkUpdating) {
 531             return;
 532         }
 533         final var base64 = Base64.getEncoder();
 534         var storage = new Storage(recipients.entrySet().stream().map(pair -> {
 535             final var recipient = pair.getValue();
 536             final var contact = recipient.getContact() == null
 537                     ? null
 538                     : new Storage.Recipient.Contact(recipient.getContact().getName(),
 539                             recipient.getContact().getColor(),
 540                             recipient.getContact().getMessageExpirationTime(),
 541                             recipient.getContact().isBlocked(),
 542                             recipient.getContact().isArchived());
 543             final var profile = recipient.getProfile() == null
 544                     ? null
 545                     : new Storage.Recipient.Profile(recipient.getProfile().getLastUpdateTimestamp(),
 546                             recipient.getProfile().getGivenName(),
 547                             recipient.getProfile().getFamilyName(),
 548                             recipient.getProfile().getAbout(),
 549                             recipient.getProfile().getAboutEmoji(),
 550                             recipient.getProfile().getAvatarUrlPath(),
 551                             recipient.getProfile().getUnidentifiedAccessMode().name(),
 552                             recipient.getProfile()
 553                                     .getCapabilities()
 554                                     .stream()
 555                                     .map(Enum::name)
 556                                     .collect(Collectors.toSet()));
 557             return new Storage.Recipient(pair.getKey().id(),
 558                     recipient.getAddress().number().orElse(null),
 559                     recipient.getAddress().uuid().map(UUID::toString).orElse(null),
 560                     recipient.getProfileKey() == null
 561                             ? null
 562                             : base64.encodeToString(recipient.getProfileKey().serialize()),
 563                     recipient.getProfileKeyCredential() == null
 564                             ? null
 565                             : base64.encodeToString(recipient.getProfileKeyCredential().serialize()),
 566                     contact,
 567                     profile);
 568         }).toList(), lastId);
 569
 570         // Write to memory first to prevent corrupting the file in case of serialization errors
 571         try (var inMemoryOutput = new ByteArrayOutputStream()) {
 572             objectMapper.writeValue(inMemoryOutput, storage);
 573
 574             var input = new ByteArrayInputStream(inMemoryOutput.toByteArray());
 575             try (var outputStream = new FileOutputStream(file)) {
 576                 input.transferTo(outputStream);
 577             }
 578         } catch (Exception e) {
 579             logger.error("Error saving recipient store file: {}", e.getMessage());
 580         }
 581     }
 582
 583     private record Storage(List<Recipient> recipients, long lastId) {
 584
 585         private record Recipient(
 586                 long id,
 587                 String number,
 588                 String uuid,
 589                 String profileKey,
 590                 String profileKeyCredential,
 591                 Storage.Recipient.Contact contact,
 592                 Storage.Recipient.Profile profile
 593         ) {
 594
 595             private record Contact(
 596                     String name, String color, int messageExpirationTime, boolean blocked, boolean archived
 597             ) {}
 598
 599             private record Profile(
 600                     long lastUpdateTimestamp,
 601                     String givenName,
 602                     String familyName,
 603                     String about,
 604                     String aboutEmoji,
 605                     String avatarUrlPath,
 606                     String unidentifiedAccessMode,
 607                     Set<String> capabilities
 608             ) {}
 609         }
 610     }
 611
 612     public interface RecipientMergeHandler {
 613
 614         void mergeRecipients(RecipientId recipientId, RecipientId toBeMergedRecipientId);
 615     }
 616 }