nmode's Git Repositories - signal-cli/blob - src/main/java/org/asamk/signal/dbus/DbusSignalImpl.java

   1 package org.asamk.signal.dbus;
   2
   3 import org.asamk.Signal;
   4 import org.asamk.Signal.Error;
   5 import org.asamk.signal.BaseConfig;
   6 import org.asamk.signal.commands.exceptions.IOErrorException;
   7 import org.asamk.signal.manager.AttachmentInvalidException;
   8 import org.asamk.signal.manager.Manager;
   9 import org.asamk.signal.manager.NotMasterDeviceException;
  10 import org.asamk.signal.manager.StickerPackInvalidException;
  11 import org.asamk.signal.manager.UntrustedIdentityException;
  12 import org.asamk.signal.manager.api.Identity;
  13 import org.asamk.signal.manager.api.Message;
  14 import org.asamk.signal.manager.api.RecipientIdentifier;
  15 import org.asamk.signal.manager.api.TypingAction;
  16 import org.asamk.signal.manager.groups.GroupId;
  17 import org.asamk.signal.manager.groups.GroupInviteLinkUrl;
  18 import org.asamk.signal.manager.groups.GroupNotFoundException;
  19 import org.asamk.signal.manager.groups.GroupSendingNotAllowedException;
  20 import org.asamk.signal.manager.groups.LastGroupAdminException;
  21 import org.asamk.signal.manager.groups.NotAGroupMemberException;
  22 import org.asamk.signal.manager.storage.recipients.Profile;
  23 import org.asamk.signal.manager.storage.recipients.RecipientAddress;
  24 import org.asamk.signal.util.ErrorUtils;
  25 import org.freedesktop.dbus.DBusPath;
  26 import org.freedesktop.dbus.connections.impl.DBusConnection;
  27 import org.freedesktop.dbus.exceptions.DBusException;
  28 import org.freedesktop.dbus.exceptions.DBusExecutionException;
  29 import org.whispersystems.libsignal.InvalidKeyException;
  30 import org.whispersystems.libsignal.util.Pair;
  31 import org.whispersystems.libsignal.util.guava.Optional;
  32 import org.whispersystems.signalservice.api.groupsv2.GroupLinkNotActiveException;
  33 import org.whispersystems.signalservice.api.messages.SendMessageResult;
  34 import org.whispersystems.signalservice.api.push.exceptions.UnregisteredUserException;
  35 import org.whispersystems.signalservice.api.util.InvalidNumberException;
  36 import org.whispersystems.signalservice.internal.contacts.crypto.UnauthenticatedResponseException;
  37
  38 import java.io.File;
  39 import java.io.IOException;
  40 import java.net.URI;
  41 import java.net.URISyntaxException;
  42 import java.util.ArrayList;
  43 import java.util.Collection;
  44 import java.util.HashSet;
  45 import java.util.List;
  46 import java.util.Map;
  47 import java.util.Objects;
  48 import java.util.Set;
  49 import java.util.UUID;
  50 import java.util.stream.Collectors;
  51 import java.util.stream.Stream;
  52
  53 public class DbusSignalImpl implements Signal {
  54
  55     private final Manager m;
  56     private final DBusConnection connection;
  57     private final String objectPath;
  58
  59     private DBusPath thisDevice;
  60     private final List<StructDevice> devices = new ArrayList<>();
  61
  62     public DbusSignalImpl(final Manager m, DBusConnection connection, final String objectPath) {
  63         this.m = m;
  64         this.connection = connection;
  65         this.objectPath = objectPath;
  66     }
  67
  68     public void initObjects() {
  69         updateDevices();
  70     }
  71
  72     public void close() {
  73         unExportDevices();
  74     }
  75
  76     @Override
  77     public String getObjectPath() {
  78         return objectPath;
  79     }
  80
  81     @Override
  82     public String getSelfNumber() {
  83         return m.getSelfNumber();
  84     }
  85
  86     @Override
  87     public void submitRateLimitChallenge(String challenge, String captchaString) throws IOErrorException {
  88         final var captcha = captchaString == null ? null : captchaString.replace("signalcaptcha://", "");
  89
  90         try {
  91             m.submitRateLimitRecaptchaChallenge(challenge, captcha);
  92         } catch (IOException e) {
  93             throw new IOErrorException("Submit challenge error: " + e.getMessage(), e);
  94         }
  95
  96     }
  97
  98     @Override
  99     public void addDevice(String uri) {
 100         try {
 101             m.addDeviceLink(new URI(uri));
 102         } catch (IOException | InvalidKeyException e) {
 103             throw new Error.Failure(e.getClass().getSimpleName() + " Add device link failed. " + e.getMessage());
 104         } catch (URISyntaxException e) {
 105             throw new Error.InvalidUri(e.getClass().getSimpleName()
 106                     + " Device link uri has invalid format: "
 107                     + e.getMessage());
 108         }
 109     }
 110
 111     @Override
 112     public DBusPath getDevice(long deviceId) {
 113         updateDevices();
 114         return new DBusPath(getDeviceObjectPath(objectPath, deviceId));
 115     }
 116
 117     @Override
 118     public List<StructDevice> listDevices() {
 119         updateDevices();
 120         return this.devices;
 121     }
 122
 123     @Override
 124     public DBusPath getThisDevice() {
 125         updateDevices();
 126         return thisDevice;
 127     }
 128
 129     @Override
 130     public long sendMessage(final String message, final List<String> attachments, final String recipient) {
 131         var recipients = new ArrayList<String>(1);
 132         recipients.add(recipient);
 133         return sendMessage(message, attachments, recipients);
 134     }
 135
 136     @Override
 137     public long sendMessage(final String message, final List<String> attachments, final List<String> recipients) {
 138         try {
 139             final var results = m.sendMessage(new Message(message, attachments),
 140                     getSingleRecipientIdentifiers(recipients, m.getSelfNumber()).stream()
 141                             .map(RecipientIdentifier.class::cast)
 142                             .collect(Collectors.toSet()));
 143
 144             checkSendMessageResults(results.getTimestamp(), results.getResults());
 145             return results.getTimestamp();
 146         } catch (AttachmentInvalidException e) {
 147             throw new Error.AttachmentInvalid(e.getMessage());
 148         } catch (IOException e) {
 149             throw new Error.Failure(e.getMessage());
 150         } catch (GroupNotFoundException | NotAGroupMemberException | GroupSendingNotAllowedException e) {
 151             throw new Error.GroupNotFound(e.getMessage());
 152         }
 153     }
 154
 155     @Override
 156     public long sendRemoteDeleteMessage(
 157             final long targetSentTimestamp, final String recipient
 158     ) {
 159         var recipients = new ArrayList<String>(1);
 160         recipients.add(recipient);
 161         return sendRemoteDeleteMessage(targetSentTimestamp, recipients);
 162     }
 163
 164     @Override
 165     public long sendRemoteDeleteMessage(
 166             final long targetSentTimestamp, final List<String> recipients
 167     ) {
 168         try {
 169             final var results = m.sendRemoteDeleteMessage(targetSentTimestamp,
 170                     getSingleRecipientIdentifiers(recipients, m.getSelfNumber()).stream()
 171                             .map(RecipientIdentifier.class::cast)
 172                             .collect(Collectors.toSet()));
 173             checkSendMessageResults(results.getTimestamp(), results.getResults());
 174             return results.getTimestamp();
 175         } catch (IOException e) {
 176             throw new Error.Failure(e.getMessage());
 177         } catch (GroupNotFoundException | NotAGroupMemberException | GroupSendingNotAllowedException e) {
 178             throw new Error.GroupNotFound(e.getMessage());
 179         }
 180     }
 181
 182     @Override
 183     public long sendGroupRemoteDeleteMessage(
 184             final long targetSentTimestamp, final byte[] groupId
 185     ) {
 186         try {
 187             final var results = m.sendRemoteDeleteMessage(targetSentTimestamp,
 188                     Set.of(new RecipientIdentifier.Group(getGroupId(groupId))));
 189             checkSendMessageResults(results.getTimestamp(), results.getResults());
 190             return results.getTimestamp();
 191         } catch (IOException e) {
 192             throw new Error.Failure(e.getMessage());
 193         } catch (GroupNotFoundException | NotAGroupMemberException | GroupSendingNotAllowedException e) {
 194             throw new Error.GroupNotFound(e.getMessage());
 195         }
 196     }
 197
 198     @Override
 199     public long sendMessageReaction(
 200             final String emoji,
 201             final boolean remove,
 202             final String targetAuthor,
 203             final long targetSentTimestamp,
 204             final String recipient
 205     ) {
 206         var recipients = new ArrayList<String>(1);
 207         recipients.add(recipient);
 208         return sendMessageReaction(emoji, remove, targetAuthor, targetSentTimestamp, recipients);
 209     }
 210
 211     @Override
 212     public long sendMessageReaction(
 213             final String emoji,
 214             final boolean remove,
 215             final String targetAuthor,
 216             final long targetSentTimestamp,
 217             final List<String> recipients
 218     ) {
 219         try {
 220             final var results = m.sendMessageReaction(emoji,
 221                     remove,
 222                     getSingleRecipientIdentifier(targetAuthor, m.getSelfNumber()),
 223                     targetSentTimestamp,
 224                     getSingleRecipientIdentifiers(recipients, m.getSelfNumber()).stream()
 225                             .map(RecipientIdentifier.class::cast)
 226                             .collect(Collectors.toSet()));
 227             checkSendMessageResults(results.getTimestamp(), results.getResults());
 228             return results.getTimestamp();
 229         } catch (IOException e) {
 230             throw new Error.Failure(e.getMessage());
 231         } catch (GroupNotFoundException | NotAGroupMemberException | GroupSendingNotAllowedException e) {
 232             throw new Error.GroupNotFound(e.getMessage());
 233         }
 234     }
 235
 236     @Override
 237     public void sendTyping(
 238             final String recipient, final boolean stop
 239     ) throws Error.Failure, Error.GroupNotFound, Error.UntrustedIdentity {
 240         try {
 241             var recipients = new ArrayList<String>(1);
 242             recipients.add(recipient);
 243             m.sendTypingMessage(stop ? TypingAction.STOP : TypingAction.START,
 244                     getSingleRecipientIdentifiers(recipients, m.getSelfNumber()).stream()
 245                             .map(RecipientIdentifier.class::cast)
 246                             .collect(Collectors.toSet()));
 247         } catch (IOException e) {
 248             throw new Error.Failure(e.getMessage());
 249         } catch (GroupNotFoundException | NotAGroupMemberException | GroupSendingNotAllowedException e) {
 250             throw new Error.GroupNotFound(e.getMessage());
 251         } catch (UntrustedIdentityException e) {
 252             throw new Error.UntrustedIdentity(e.getMessage());
 253         }
 254     }
 255
 256     @Override
 257     public void sendReadReceipt(
 258             final String recipient, final List<Long> messageIds
 259     ) throws Error.Failure, Error.UntrustedIdentity {
 260         try {
 261             m.sendReadReceipt(getSingleRecipientIdentifier(recipient, m.getSelfNumber()), messageIds);
 262         } catch (IOException e) {
 263             throw new Error.Failure(e.getMessage());
 264         } catch (UntrustedIdentityException e) {
 265             throw new Error.UntrustedIdentity(e.getMessage());
 266         }
 267     }
 268
 269     @Override
 270     public void sendContacts() {
 271         try {
 272             m.sendContacts();
 273         } catch (IOException e) {
 274             throw new Error.Failure("SendContacts error: " + e.getMessage());
 275         }
 276     }
 277
 278     @Override
 279     public void sendSyncRequest() {
 280         try {
 281             m.requestAllSyncData();
 282         } catch (IOException e) {
 283             throw new Error.Failure("Request sync data error: " + e.getMessage());
 284         }
 285     }
 286
 287     @Override
 288     public long sendNoteToSelfMessage(
 289             final String message, final List<String> attachments
 290     ) throws Error.AttachmentInvalid, Error.Failure, Error.UntrustedIdentity {
 291         try {
 292             final var results = m.sendMessage(new Message(message, attachments),
 293                     Set.of(RecipientIdentifier.NoteToSelf.INSTANCE));
 294             checkSendMessageResults(results.getTimestamp(), results.getResults());
 295             return results.getTimestamp();
 296         } catch (AttachmentInvalidException e) {
 297             throw new Error.AttachmentInvalid(e.getMessage());
 298         } catch (IOException e) {
 299             throw new Error.Failure(e.getMessage());
 300         } catch (GroupNotFoundException | NotAGroupMemberException | GroupSendingNotAllowedException e) {
 301             throw new Error.GroupNotFound(e.getMessage());
 302         }
 303     }
 304
 305     @Override
 306     public void sendEndSessionMessage(final List<String> recipients) {
 307         try {
 308             final var results = m.sendEndSessionMessage(getSingleRecipientIdentifiers(recipients, m.getSelfNumber()));
 309             checkSendMessageResults(results.getTimestamp(), results.getResults());
 310         } catch (IOException e) {
 311             throw new Error.Failure(e.getMessage());
 312         }
 313     }
 314
 315     @Override
 316     public long sendGroupMessage(final String message, final List<String> attachments, final byte[] groupId) {
 317         try {
 318             var results = m.sendMessage(new Message(message, attachments),
 319                     Set.of(new RecipientIdentifier.Group(getGroupId(groupId))));
 320             checkSendMessageResults(results.getTimestamp(), results.getResults());
 321             return results.getTimestamp();
 322         } catch (IOException e) {
 323             throw new Error.Failure(e.getMessage());
 324         } catch (GroupNotFoundException | NotAGroupMemberException | GroupSendingNotAllowedException e) {
 325             throw new Error.GroupNotFound(e.getMessage());
 326         } catch (AttachmentInvalidException e) {
 327             throw new Error.AttachmentInvalid(e.getMessage());
 328         }
 329     }
 330
 331     @Override
 332     public long sendGroupMessageReaction(
 333             final String emoji,
 334             final boolean remove,
 335             final String targetAuthor,
 336             final long targetSentTimestamp,
 337             final byte[] groupId
 338     ) {
 339         try {
 340             final var results = m.sendMessageReaction(emoji,
 341                     remove,
 342                     getSingleRecipientIdentifier(targetAuthor, m.getSelfNumber()),
 343                     targetSentTimestamp,
 344                     Set.of(new RecipientIdentifier.Group(getGroupId(groupId))));
 345             checkSendMessageResults(results.getTimestamp(), results.getResults());
 346             return results.getTimestamp();
 347         } catch (IOException e) {
 348             throw new Error.Failure(e.getMessage());
 349         } catch (GroupNotFoundException | NotAGroupMemberException | GroupSendingNotAllowedException e) {
 350             throw new Error.GroupNotFound(e.getMessage());
 351         }
 352     }
 353
 354     // Since contact names might be empty if not defined, also potentially return
 355     // the profile name
 356     @Override
 357     public String getContactName(final String number) {
 358         final var name = m.getContactOrProfileName(getSingleRecipientIdentifier(number, m.getSelfNumber()));
 359         return name == null ? "" : name;
 360     }
 361
 362     @Override
 363     public void setContactName(final String number, final String name) {
 364         try {
 365             m.setContactName(getSingleRecipientIdentifier(number, m.getSelfNumber()), name);
 366         } catch (NotMasterDeviceException e) {
 367             throw new Error.Failure("This command doesn't work on linked devices.");
 368         } catch (UnregisteredUserException e) {
 369             throw new Error.Failure("Contact is not registered.");
 370         }
 371     }
 372
 373     @Override
 374     public void setExpirationTimer(final String number, final int expiration) {
 375         try {
 376             m.setExpirationTimer(getSingleRecipientIdentifier(number, m.getSelfNumber()), expiration);
 377         } catch (IOException e) {
 378             throw new Error.Failure(e.getMessage());
 379         }
 380     }
 381
 382     @Override
 383     public void setContactBlocked(final String number, final boolean blocked) {
 384         try {
 385             m.setContactBlocked(getSingleRecipientIdentifier(number, m.getSelfNumber()), blocked);
 386         } catch (NotMasterDeviceException e) {
 387             throw new Error.Failure("This command doesn't work on linked devices.");
 388         } catch (IOException e) {
 389             throw new Error.Failure(e.getMessage());
 390         }
 391     }
 392
 393     @Override
 394     public void setGroupBlocked(final byte[] groupId, final boolean blocked) {
 395         try {
 396             m.setGroupBlocked(getGroupId(groupId), blocked);
 397         } catch (GroupNotFoundException e) {
 398             throw new Error.GroupNotFound(e.getMessage());
 399         } catch (IOException e) {
 400             throw new Error.Failure(e.getMessage());
 401         }
 402     }
 403
 404     @Override
 405     public List<byte[]> getGroupIds() {
 406         var groups = m.getGroups();
 407         var ids = new ArrayList<byte[]>(groups.size());
 408         for (var group : groups) {
 409             ids.add(group.getGroupId().serialize());
 410         }
 411         return ids;
 412     }
 413
 414     @Override
 415     public String getGroupName(final byte[] groupId) {
 416         var group = m.getGroup(getGroupId(groupId));
 417         if (group == null || group.getTitle() == null) {
 418             return "";
 419         } else {
 420             return group.getTitle();
 421         }
 422     }
 423
 424     @Override
 425     public List<String> getGroupMembers(final byte[] groupId) {
 426         var group = m.getGroup(getGroupId(groupId));
 427         if (group == null) {
 428             return List.of();
 429         } else {
 430             return group.getMembers().stream().map(RecipientAddress::getLegacyIdentifier).collect(Collectors.toList());
 431         }
 432     }
 433
 434     @Override
 435     public byte[] updateGroup(byte[] groupId, String name, List<String> members, String avatar) {
 436         try {
 437             groupId = nullIfEmpty(groupId);
 438             name = nullIfEmpty(name);
 439             avatar = nullIfEmpty(avatar);
 440             final var memberIdentifiers = getSingleRecipientIdentifiers(members, m.getSelfNumber());
 441             if (groupId == null) {
 442                 final var results = m.createGroup(name, memberIdentifiers, avatar == null ? null : new File(avatar));
 443                 checkSendMessageResults(results.second().getTimestamp(), results.second().getResults());
 444                 return results.first().serialize();
 445             } else {
 446                 final var results = m.updateGroup(getGroupId(groupId),
 447                         name,
 448                         null,
 449                         memberIdentifiers,
 450                         null,
 451                         null,
 452                         null,
 453                         false,
 454                         null,
 455                         null,
 456                         null,
 457                         avatar == null ? null : new File(avatar),
 458                         null,
 459                         null);
 460                 if (results != null) {
 461                     checkSendMessageResults(results.getTimestamp(), results.getResults());
 462                 }
 463                 return groupId;
 464             }
 465         } catch (IOException e) {
 466             throw new Error.Failure(e.getMessage());
 467         } catch (GroupNotFoundException | NotAGroupMemberException | GroupSendingNotAllowedException e) {
 468             throw new Error.GroupNotFound(e.getMessage());
 469         } catch (AttachmentInvalidException e) {
 470             throw new Error.AttachmentInvalid(e.getMessage());
 471         }
 472     }
 473
 474     @Override
 475     public boolean isRegistered() {
 476         return true;
 477     }
 478
 479     @Override
 480     public boolean isRegistered(String number) {
 481         var result = isRegistered(List.of(number));
 482         return result.get(0);
 483     }
 484
 485     @Override
 486     public List<Boolean> isRegistered(List<String> numbers) {
 487         var results = new ArrayList<Boolean>();
 488         if (numbers.isEmpty()) {
 489             return results;
 490         }
 491
 492         Map<String, Pair<String, UUID>> registered;
 493         try {
 494             registered = m.areUsersRegistered(new HashSet<>(numbers));
 495         } catch (IOException e) {
 496             throw new Error.Failure(e.getMessage());
 497         }
 498
 499         return numbers.stream().map(number -> {
 500             var uuid = registered.get(number).second();
 501             return uuid != null;
 502         }).collect(Collectors.toList());
 503     }
 504
 505     @Override
 506     public void updateProfile(
 507             String givenName,
 508             String familyName,
 509             String about,
 510             String aboutEmoji,
 511             String avatarPath,
 512             final boolean removeAvatar
 513     ) {
 514         try {
 515             givenName = nullIfEmpty(givenName);
 516             familyName = nullIfEmpty(familyName);
 517             about = nullIfEmpty(about);
 518             aboutEmoji = nullIfEmpty(aboutEmoji);
 519             avatarPath = nullIfEmpty(avatarPath);
 520             Optional<File> avatarFile = removeAvatar
 521                     ? Optional.absent()
 522                     : avatarPath == null ? null : Optional.of(new File(avatarPath));
 523             m.setProfile(givenName, familyName, about, aboutEmoji, avatarFile);
 524         } catch (IOException e) {
 525             throw new Error.Failure(e.getMessage());
 526         }
 527     }
 528
 529     @Override
 530     public void updateProfile(
 531             final String name,
 532             final String about,
 533             final String aboutEmoji,
 534             String avatarPath,
 535             final boolean removeAvatar
 536     ) {
 537         updateProfile(name, "", about, aboutEmoji, avatarPath, removeAvatar);
 538     }
 539
 540     @Override
 541     public void removePin() {
 542         try {
 543             m.setRegistrationLockPin(Optional.absent());
 544         } catch (UnauthenticatedResponseException e) {
 545             throw new Error.Failure("Remove pin failed with unauthenticated response: " + e.getMessage());
 546         } catch (IOException e) {
 547             throw new Error.Failure("Remove pin error: " + e.getMessage());
 548         }
 549     }
 550
 551     @Override
 552     public void setPin(String registrationLockPin) {
 553         try {
 554             m.setRegistrationLockPin(Optional.of(registrationLockPin));
 555         } catch (UnauthenticatedResponseException e) {
 556             throw new Error.Failure("Set pin error failed with unauthenticated response: " + e.getMessage());
 557         } catch (IOException e) {
 558             throw new Error.Failure("Set pin error: " + e.getMessage());
 559         }
 560     }
 561
 562     // Provide option to query a version string in order to react on potential
 563     // future interface changes
 564     @Override
 565     public String version() {
 566         return BaseConfig.PROJECT_VERSION;
 567     }
 568
 569     // Create a unique list of Numbers from Identities and Contacts to really get
 570     // all numbers the system knows
 571     @Override
 572     public List<String> listNumbers() {
 573         return Stream.concat(m.getIdentities().stream().map(Identity::getRecipient),
 574                 m.getContacts().stream().map(Pair::first))
 575                 .map(a -> a.getNumber().orElse(null))
 576                 .filter(Objects::nonNull)
 577                 .distinct()
 578                 .collect(Collectors.toList());
 579     }
 580
 581     @Override
 582     public List<String> getContactNumber(final String name) {
 583         // Contact names have precedence.
 584         var numbers = new ArrayList<String>();
 585         var contacts = m.getContacts();
 586         for (var c : contacts) {
 587             if (name.equals(c.second().getName())) {
 588                 numbers.add(c.first().getLegacyIdentifier());
 589             }
 590         }
 591         // Try profiles if no contact name was found
 592         for (var identity : m.getIdentities()) {
 593             final var address = identity.getRecipient();
 594             var number = address.getNumber().orElse(null);
 595             if (number != null) {
 596                 Profile profile = null;
 597                 try {
 598                     profile = m.getRecipientProfile(RecipientIdentifier.Single.fromAddress(address));
 599                 } catch (UnregisteredUserException ignored) {
 600                 }
 601                 if (profile != null && profile.getDisplayName().equals(name)) {
 602                     numbers.add(number);
 603                 }
 604             }
 605         }
 606         return numbers;
 607     }
 608
 609     @Override
 610     public void quitGroup(final byte[] groupId) {
 611         var group = getGroupId(groupId);
 612         try {
 613             m.quitGroup(group, Set.of());
 614         } catch (GroupNotFoundException | NotAGroupMemberException e) {
 615             throw new Error.GroupNotFound(e.getMessage());
 616         } catch (IOException | LastGroupAdminException e) {
 617             throw new Error.Failure(e.getMessage());
 618         }
 619     }
 620
 621     @Override
 622     public byte[] joinGroup(final String groupLink) {
 623         try {
 624             final var linkUrl = GroupInviteLinkUrl.fromUri(groupLink);
 625             if (linkUrl == null) {
 626                 throw new Error.Failure("Group link is invalid:");
 627             }
 628             final var result = m.joinGroup(linkUrl);
 629             return result.first().serialize();
 630         } catch (GroupInviteLinkUrl.InvalidGroupLinkException | GroupLinkNotActiveException e) {
 631             throw new Error.Failure("Group link is invalid: " + e.getMessage());
 632         } catch (GroupInviteLinkUrl.UnknownGroupLinkVersionException e) {
 633             throw new Error.Failure("Group link was created with an incompatible version: " + e.getMessage());
 634         } catch (IOException e) {
 635             throw new Error.Failure(e.getMessage());
 636         }
 637     }
 638
 639     @Override
 640     public boolean isContactBlocked(final String number) {
 641         return m.isContactBlocked(getSingleRecipientIdentifier(number, m.getSelfNumber()));
 642     }
 643
 644     @Override
 645     public boolean isGroupBlocked(final byte[] groupId) {
 646         var group = m.getGroup(getGroupId(groupId));
 647         if (group == null) {
 648             return false;
 649         } else {
 650             return group.isBlocked();
 651         }
 652     }
 653
 654     @Override
 655     public boolean isMember(final byte[] groupId) {
 656         var group = m.getGroup(getGroupId(groupId));
 657         if (group == null) {
 658             return false;
 659         } else {
 660             return group.isMember();
 661         }
 662     }
 663
 664     @Override
 665     public String uploadStickerPack(String stickerPackPath) {
 666         File path = new File(stickerPackPath);
 667         try {
 668             return m.uploadStickerPack(path).toString();
 669         } catch (IOException e) {
 670             throw new Error.Failure("Upload error (maybe image size is too large):" + e.getMessage());
 671         } catch (StickerPackInvalidException e) {
 672             throw new Error.Failure("Invalid sticker pack: " + e.getMessage());
 673         }
 674     }
 675
 676     private static void checkSendMessageResult(long timestamp, SendMessageResult result) throws DBusExecutionException {
 677         var error = ErrorUtils.getErrorMessageFromSendMessageResult(result);
 678
 679         if (error == null) {
 680             return;
 681         }
 682
 683         final var message = timestamp + "\nFailed to send message:\n" + error + '\n';
 684
 685         if (result.getIdentityFailure() != null) {
 686             throw new Error.UntrustedIdentity(message);
 687         } else {
 688             throw new Error.Failure(message);
 689         }
 690     }
 691
 692     private static void checkSendMessageResults(
 693             long timestamp, Map<RecipientIdentifier, List<SendMessageResult>> results
 694     ) throws DBusExecutionException {
 695         final var sendMessageResults = results.values().stream().findFirst();
 696         if (results.size() == 1 && sendMessageResults.get().size() == 1) {
 697             checkSendMessageResult(timestamp, sendMessageResults.get().stream().findFirst().get());
 698             return;
 699         }
 700
 701         var errors = ErrorUtils.getErrorMessagesFromSendMessageResults(results);
 702         if (errors.size() == 0) {
 703             return;
 704         }
 705
 706         var message = new StringBuilder();
 707         message.append(timestamp).append('\n');
 708         message.append("Failed to send (some) messages:\n");
 709         for (var error : errors) {
 710             message.append(error).append('\n');
 711         }
 712
 713         throw new Error.Failure(message.toString());
 714     }
 715
 716     private static void checkSendMessageResults(
 717             long timestamp, Collection<SendMessageResult> results
 718     ) throws DBusExecutionException {
 719         if (results.size() == 1) {
 720             checkSendMessageResult(timestamp, results.stream().findFirst().get());
 721             return;
 722         }
 723
 724         var errors = ErrorUtils.getErrorMessagesFromSendMessageResults(results);
 725         if (errors.size() == 0) {
 726             return;
 727         }
 728
 729         var message = new StringBuilder();
 730         message.append(timestamp).append('\n');
 731         message.append("Failed to send (some) messages:\n");
 732         for (var error : errors) {
 733             message.append(error).append('\n');
 734         }
 735
 736         throw new Error.Failure(message.toString());
 737     }
 738
 739     private static Set<RecipientIdentifier.Single> getSingleRecipientIdentifiers(
 740             final Collection<String> recipientStrings, final String localNumber
 741     ) throws DBusExecutionException {
 742         final var identifiers = new HashSet<RecipientIdentifier.Single>();
 743         for (var recipientString : recipientStrings) {
 744             identifiers.add(getSingleRecipientIdentifier(recipientString, localNumber));
 745         }
 746         return identifiers;
 747     }
 748
 749     private static RecipientIdentifier.Single getSingleRecipientIdentifier(
 750             final String recipientString, final String localNumber
 751     ) throws DBusExecutionException {
 752         try {
 753             return RecipientIdentifier.Single.fromString(recipientString, localNumber);
 754         } catch (InvalidNumberException e) {
 755             throw new Error.InvalidNumber(e.getMessage());
 756         }
 757     }
 758
 759     private static GroupId getGroupId(byte[] groupId) throws DBusExecutionException {
 760         try {
 761             return GroupId.unknownVersion(groupId);
 762         } catch (Throwable e) {
 763             throw new Error.InvalidGroupId("Invalid group id: " + e.getMessage());
 764         }
 765     }
 766
 767     private byte[] nullIfEmpty(final byte[] array) {
 768         return array.length == 0 ? null : array;
 769     }
 770
 771     private String nullIfEmpty(final String name) {
 772         return name.isEmpty() ? null : name;
 773     }
 774
 775     private String emptyIfNull(final String string) {
 776         return string == null ? "" : string;
 777     }
 778
 779     private static String getDeviceObjectPath(String basePath, long deviceId) {
 780         return basePath + "/Devices/" + deviceId;
 781     }
 782
 783     private void updateDevices() {
 784         List<org.asamk.signal.manager.api.Device> linkedDevices;
 785         try {
 786             linkedDevices = m.getLinkedDevices();
 787         } catch (IOException e) {
 788             throw new Error.Failure("Failed to get linked devices: " + e.getMessage());
 789         }
 790
 791         unExportDevices();
 792
 793         linkedDevices.forEach(d -> {
 794             final var object = new DbusSignalDeviceImpl(d);
 795             final var deviceObjectPath = object.getObjectPath();
 796             try {
 797                 connection.exportObject(object);
 798             } catch (DBusException e) {
 799                 e.printStackTrace();
 800             }
 801             if (d.isThisDevice()) {
 802                 thisDevice = new DBusPath(deviceObjectPath);
 803             }
 804             this.devices.add(new StructDevice(new DBusPath(deviceObjectPath), d.getId(), emptyIfNull(d.getName())));
 805         });
 806     }
 807
 808     private void unExportDevices() {
 809         this.devices.stream()
 810                 .map(StructDevice::getObjectPath)
 811                 .map(DBusPath::getPath)
 812                 .forEach(connection::unExportObject);
 813         this.devices.clear();
 814     }
 815
 816     public class DbusSignalDeviceImpl extends DbusProperties implements Signal.Device {
 817
 818         private final org.asamk.signal.manager.api.Device device;
 819
 820         public DbusSignalDeviceImpl(final org.asamk.signal.manager.api.Device device) {
 821             super.addPropertiesHandler(new DbusInterfacePropertiesHandler("org.asamk.Signal.Device",
 822                     List.of(new DbusProperty<>("Id", device::getId),
 823                             new DbusProperty<>("Name", () -> emptyIfNull(device.getName()), this::setDeviceName),
 824                             new DbusProperty<>("Created", device::getCreated),
 825                             new DbusProperty<>("LastSeen", device::getLastSeen))));
 826             this.device = device;
 827         }
 828
 829         @Override
 830         public String getObjectPath() {
 831             return getDeviceObjectPath(objectPath, device.getId());
 832         }
 833
 834         @Override
 835         public void removeDevice() throws Error.Failure {
 836             try {
 837                 m.removeLinkedDevices(device.getId());
 838                 updateDevices();
 839             } catch (IOException e) {
 840                 throw new Error.Failure(e.getMessage());
 841             }
 842         }
 843
 844         private void setDeviceName(String name) {
 845             if (!device.isThisDevice()) {
 846                 throw new Error.Failure("Only the name of this device can be changed");
 847             }
 848             try {
 849                 m.updateAccountAttributes(name);
 850                 // update device list
 851                 updateDevices();
 852             } catch (IOException e) {
 853                 throw new Error.Failure(e.getMessage());
 854             }
 855         }
 856     }
 857 }