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.BaseConfig;
   5 import org.asamk.signal.manager.AttachmentInvalidException;
   6 import org.asamk.signal.manager.Manager;
   7 import org.asamk.signal.manager.NotMasterDeviceException;
   8 import org.asamk.signal.manager.StickerPackInvalidException;
   9 import org.asamk.signal.manager.UntrustedIdentityException;
  10 import org.asamk.signal.manager.api.Identity;
  11 import org.asamk.signal.manager.api.InactiveGroupLinkException;
  12 import org.asamk.signal.manager.api.InvalidDeviceLinkException;
  13 import org.asamk.signal.manager.api.InvalidNumberException;
  14 import org.asamk.signal.manager.api.Message;
  15 import org.asamk.signal.manager.api.Pair;
  16 import org.asamk.signal.manager.api.RecipientIdentifier;
  17 import org.asamk.signal.manager.api.SendMessageResult;
  18 import org.asamk.signal.manager.api.TypingAction;
  19 import org.asamk.signal.manager.api.UpdateGroup;
  20 import org.asamk.signal.manager.groups.GroupId;
  21 import org.asamk.signal.manager.groups.GroupInviteLinkUrl;
  22 import org.asamk.signal.manager.groups.GroupLinkState;
  23 import org.asamk.signal.manager.groups.GroupNotFoundException;
  24 import org.asamk.signal.manager.groups.GroupPermission;
  25 import org.asamk.signal.manager.groups.GroupSendingNotAllowedException;
  26 import org.asamk.signal.manager.groups.LastGroupAdminException;
  27 import org.asamk.signal.manager.groups.NotAGroupMemberException;
  28 import org.asamk.signal.manager.storage.recipients.Profile;
  29 import org.asamk.signal.manager.storage.recipients.RecipientAddress;
  30 import org.asamk.signal.util.ErrorUtils;
  31 import org.freedesktop.dbus.DBusPath;
  32 import org.freedesktop.dbus.connections.impl.DBusConnection;
  33 import org.freedesktop.dbus.exceptions.DBusException;
  34 import org.freedesktop.dbus.exceptions.DBusExecutionException;
  35 import org.freedesktop.dbus.types.Variant;
  36
  37 import java.io.File;
  38 import java.io.IOException;
  39 import java.net.URI;
  40 import java.net.URISyntaxException;
  41 import java.util.ArrayList;
  42 import java.util.Arrays;
  43 import java.util.Base64;
  44 import java.util.Collection;
  45 import java.util.HashSet;
  46 import java.util.List;
  47 import java.util.Map;
  48 import java.util.Objects;
  49 import java.util.Optional;
  50 import java.util.Set;
  51 import java.util.UUID;
  52 import java.util.stream.Collectors;
  53 import java.util.stream.Stream;
  54
  55 public class DbusSignalImpl implements Signal {
  56
  57     private final Manager m;
  58     private final DBusConnection connection;
  59     private final String objectPath;
  60
  61     private DBusPath thisDevice;
  62     private final List<StructDevice> devices = new ArrayList<>();
  63     private final List<StructGroup> groups = new ArrayList<>();
  64
  65     public DbusSignalImpl(final Manager m, DBusConnection connection, final String objectPath) {
  66         this.m = m;
  67         this.connection = connection;
  68         this.objectPath = objectPath;
  69     }
  70
  71     public void initObjects() {
  72         updateDevices();
  73         updateGroups();
  74     }
  75
  76     public void close() {
  77         unExportDevices();
  78         unExportGroups();
  79     }
  80
  81     @Override
  82     public String getObjectPath() {
  83         return objectPath;
  84     }
  85
  86     @Override
  87     public String getSelfNumber() {
  88         return m.getSelfNumber();
  89     }
  90
  91     @Override
  92     public void submitRateLimitChallenge(String challenge, String captchaString) {
  93         final var captcha = captchaString == null ? null : captchaString.replace("signalcaptcha://", "");
  94
  95         try {
  96             m.submitRateLimitRecaptchaChallenge(challenge, captcha);
  97         } catch (IOException e) {
  98             throw new Error.Failure("Submit challenge error: " + e.getMessage());
  99         }
 100
 101     }
 102
 103     @Override
 104     public void addDevice(String uri) {
 105         try {
 106             m.addDeviceLink(new URI(uri));
 107         } catch (IOException | InvalidDeviceLinkException e) {
 108             throw new Error.Failure(e.getClass().getSimpleName() + " Add device link failed. " + e.getMessage());
 109         } catch (URISyntaxException e) {
 110             throw new Error.InvalidUri(e.getClass().getSimpleName()
 111                     + " Device link uri has invalid format: "
 112                     + e.getMessage());
 113         }
 114     }
 115
 116     @Override
 117     public DBusPath getDevice(long deviceId) {
 118         updateDevices();
 119         final var deviceOptional = devices.stream().filter(g -> g.getId().equals(deviceId)).findFirst();
 120         if (deviceOptional.isEmpty()) {
 121             throw new Error.DeviceNotFound("Device not found");
 122         }
 123         return deviceOptional.get().getObjectPath();
 124     }
 125
 126     @Override
 127     public List<StructDevice> listDevices() {
 128         updateDevices();
 129         return this.devices;
 130     }
 131
 132     @Override
 133     public DBusPath getThisDevice() {
 134         updateDevices();
 135         return thisDevice;
 136     }
 137
 138     @Override
 139     public long sendMessage(final String message, final List<String> attachments, final String recipient) {
 140         var recipients = new ArrayList<String>(1);
 141         recipients.add(recipient);
 142         return sendMessage(message, attachments, recipients);
 143     }
 144
 145     @Override
 146     public long sendMessage(final String message, final List<String> attachments, final List<String> recipients) {
 147         try {
 148             final var results = m.sendMessage(new Message(message, attachments),
 149                     getSingleRecipientIdentifiers(recipients, m.getSelfNumber()).stream()
 150                             .map(RecipientIdentifier.class::cast)
 151                             .collect(Collectors.toSet()));
 152
 153             checkSendMessageResults(results.timestamp(), results.results());
 154             return results.timestamp();
 155         } catch (AttachmentInvalidException e) {
 156             throw new Error.AttachmentInvalid(e.getMessage());
 157         } catch (IOException e) {
 158             throw new Error.Failure(e);
 159         } catch (GroupNotFoundException | NotAGroupMemberException | GroupSendingNotAllowedException e) {
 160             throw new Error.GroupNotFound(e.getMessage());
 161         }
 162     }
 163
 164     @Override
 165     public long sendRemoteDeleteMessage(
 166             final long targetSentTimestamp, final String recipient
 167     ) {
 168         var recipients = new ArrayList<String>(1);
 169         recipients.add(recipient);
 170         return sendRemoteDeleteMessage(targetSentTimestamp, recipients);
 171     }
 172
 173     @Override
 174     public long sendRemoteDeleteMessage(
 175             final long targetSentTimestamp, final List<String> recipients
 176     ) {
 177         try {
 178             final var results = m.sendRemoteDeleteMessage(targetSentTimestamp,
 179                     getSingleRecipientIdentifiers(recipients, m.getSelfNumber()).stream()
 180                             .map(RecipientIdentifier.class::cast)
 181                             .collect(Collectors.toSet()));
 182             checkSendMessageResults(results.timestamp(), results.results());
 183             return results.timestamp();
 184         } catch (IOException e) {
 185             throw new Error.Failure(e.getMessage());
 186         } catch (GroupNotFoundException | NotAGroupMemberException | GroupSendingNotAllowedException e) {
 187             throw new Error.GroupNotFound(e.getMessage());
 188         }
 189     }
 190
 191     @Override
 192     public long sendGroupRemoteDeleteMessage(
 193             final long targetSentTimestamp, final byte[] groupId
 194     ) {
 195         try {
 196             final var results = m.sendRemoteDeleteMessage(targetSentTimestamp,
 197                     Set.of(new RecipientIdentifier.Group(getGroupId(groupId))));
 198             checkSendMessageResults(results.timestamp(), results.results());
 199             return results.timestamp();
 200         } catch (IOException e) {
 201             throw new Error.Failure(e.getMessage());
 202         } catch (GroupNotFoundException | NotAGroupMemberException | GroupSendingNotAllowedException e) {
 203             throw new Error.GroupNotFound(e.getMessage());
 204         }
 205     }
 206
 207     @Override
 208     public long sendMessageReaction(
 209             final String emoji,
 210             final boolean remove,
 211             final String targetAuthor,
 212             final long targetSentTimestamp,
 213             final String recipient
 214     ) {
 215         var recipients = new ArrayList<String>(1);
 216         recipients.add(recipient);
 217         return sendMessageReaction(emoji, remove, targetAuthor, targetSentTimestamp, recipients);
 218     }
 219
 220     @Override
 221     public long sendMessageReaction(
 222             final String emoji,
 223             final boolean remove,
 224             final String targetAuthor,
 225             final long targetSentTimestamp,
 226             final List<String> recipients
 227     ) {
 228         try {
 229             final var results = m.sendMessageReaction(emoji,
 230                     remove,
 231                     getSingleRecipientIdentifier(targetAuthor, m.getSelfNumber()),
 232                     targetSentTimestamp,
 233                     getSingleRecipientIdentifiers(recipients, m.getSelfNumber()).stream()
 234                             .map(RecipientIdentifier.class::cast)
 235                             .collect(Collectors.toSet()));
 236             checkSendMessageResults(results.timestamp(), results.results());
 237             return results.timestamp();
 238         } catch (IOException e) {
 239             throw new Error.Failure(e.getMessage());
 240         } catch (GroupNotFoundException | NotAGroupMemberException | GroupSendingNotAllowedException e) {
 241             throw new Error.GroupNotFound(e.getMessage());
 242         }
 243     }
 244
 245     @Override
 246     public void sendTyping(
 247             final String recipient, final boolean stop
 248     ) throws Error.Failure, Error.GroupNotFound, Error.UntrustedIdentity {
 249         try {
 250             var recipients = new ArrayList<String>(1);
 251             recipients.add(recipient);
 252             m.sendTypingMessage(stop ? TypingAction.STOP : TypingAction.START,
 253                     getSingleRecipientIdentifiers(recipients, m.getSelfNumber()).stream()
 254                             .map(RecipientIdentifier.class::cast)
 255                             .collect(Collectors.toSet()));
 256         } catch (IOException e) {
 257             throw new Error.Failure(e.getMessage());
 258         } catch (GroupNotFoundException | NotAGroupMemberException | GroupSendingNotAllowedException e) {
 259             throw new Error.GroupNotFound(e.getMessage());
 260         } catch (UntrustedIdentityException e) {
 261             throw new Error.UntrustedIdentity(e.getMessage());
 262         }
 263     }
 264
 265     @Override
 266     public void sendReadReceipt(
 267             final String recipient, final List<Long> messageIds
 268     ) throws Error.Failure, Error.UntrustedIdentity {
 269         try {
 270             m.sendReadReceipt(getSingleRecipientIdentifier(recipient, m.getSelfNumber()), messageIds);
 271         } catch (IOException e) {
 272             throw new Error.Failure(e.getMessage());
 273         } catch (UntrustedIdentityException e) {
 274             throw new Error.UntrustedIdentity(e.getMessage());
 275         }
 276     }
 277
 278     @Override
 279     public void sendViewedReceipt(
 280             final String recipient, final List<Long> messageIds
 281     ) throws Error.Failure, Error.UntrustedIdentity {
 282         try {
 283             m.sendViewedReceipt(getSingleRecipientIdentifier(recipient, m.getSelfNumber()), messageIds);
 284         } catch (IOException e) {
 285             throw new Error.Failure(e.getMessage());
 286         } catch (UntrustedIdentityException e) {
 287             throw new Error.UntrustedIdentity(e.getMessage());
 288         }
 289     }
 290
 291     @Override
 292     public void sendContacts() {
 293         try {
 294             m.sendContacts();
 295         } catch (IOException e) {
 296             throw new Error.Failure("SendContacts error: " + e.getMessage());
 297         }
 298     }
 299
 300     @Override
 301     public void sendSyncRequest() {
 302         try {
 303             m.requestAllSyncData();
 304         } catch (IOException e) {
 305             throw new Error.Failure("Request sync data error: " + e.getMessage());
 306         }
 307     }
 308
 309     @Override
 310     public long sendNoteToSelfMessage(
 311             final String message, final List<String> attachments
 312     ) throws Error.AttachmentInvalid, Error.Failure, Error.UntrustedIdentity {
 313         try {
 314             final var results = m.sendMessage(new Message(message, attachments),
 315                     Set.of(RecipientIdentifier.NoteToSelf.INSTANCE));
 316             checkSendMessageResults(results.timestamp(), results.results());
 317             return results.timestamp();
 318         } catch (AttachmentInvalidException e) {
 319             throw new Error.AttachmentInvalid(e.getMessage());
 320         } catch (IOException e) {
 321             throw new Error.Failure(e.getMessage());
 322         } catch (GroupNotFoundException | NotAGroupMemberException | GroupSendingNotAllowedException e) {
 323             throw new Error.GroupNotFound(e.getMessage());
 324         }
 325     }
 326
 327     @Override
 328     public void sendEndSessionMessage(final List<String> recipients) {
 329         try {
 330             final var results = m.sendEndSessionMessage(getSingleRecipientIdentifiers(recipients, m.getSelfNumber()));
 331             checkSendMessageResults(results.timestamp(), results.results());
 332         } catch (IOException e) {
 333             throw new Error.Failure(e.getMessage());
 334         }
 335     }
 336
 337     @Override
 338     public long sendGroupMessage(final String message, final List<String> attachments, final byte[] groupId) {
 339         try {
 340             var results = m.sendMessage(new Message(message, attachments),
 341                     Set.of(new RecipientIdentifier.Group(getGroupId(groupId))));
 342             checkSendMessageResults(results.timestamp(), results.results());
 343             return results.timestamp();
 344         } catch (IOException e) {
 345             throw new Error.Failure(e.getMessage());
 346         } catch (GroupNotFoundException | NotAGroupMemberException | GroupSendingNotAllowedException e) {
 347             throw new Error.GroupNotFound(e.getMessage());
 348         } catch (AttachmentInvalidException e) {
 349             throw new Error.AttachmentInvalid(e.getMessage());
 350         }
 351     }
 352
 353     @Override
 354     public long sendGroupMessageReaction(
 355             final String emoji,
 356             final boolean remove,
 357             final String targetAuthor,
 358             final long targetSentTimestamp,
 359             final byte[] groupId
 360     ) {
 361         try {
 362             final var results = m.sendMessageReaction(emoji,
 363                     remove,
 364                     getSingleRecipientIdentifier(targetAuthor, m.getSelfNumber()),
 365                     targetSentTimestamp,
 366                     Set.of(new RecipientIdentifier.Group(getGroupId(groupId))));
 367             checkSendMessageResults(results.timestamp(), results.results());
 368             return results.timestamp();
 369         } catch (IOException e) {
 370             throw new Error.Failure(e.getMessage());
 371         } catch (GroupNotFoundException | NotAGroupMemberException | GroupSendingNotAllowedException e) {
 372             throw new Error.GroupNotFound(e.getMessage());
 373         }
 374     }
 375
 376     // Since contact names might be empty if not defined, also potentially return
 377     // the profile name
 378     @Override
 379     public String getContactName(final String number) {
 380         final var name = m.getContactOrProfileName(getSingleRecipientIdentifier(number, m.getSelfNumber()));
 381         return name == null ? "" : name;
 382     }
 383
 384     @Override
 385     public void setContactName(final String number, final String name) {
 386         try {
 387             m.setContactName(getSingleRecipientIdentifier(number, m.getSelfNumber()), name);
 388         } catch (NotMasterDeviceException e) {
 389             throw new Error.Failure("This command doesn't work on linked devices.");
 390         } catch (IOException e) {
 391             throw new Error.Failure("Contact is not registered.");
 392         }
 393     }
 394
 395     @Override
 396     public void setExpirationTimer(final String number, final int expiration) {
 397         try {
 398             m.setExpirationTimer(getSingleRecipientIdentifier(number, m.getSelfNumber()), expiration);
 399         } catch (IOException e) {
 400             throw new Error.Failure(e.getMessage());
 401         }
 402     }
 403
 404     @Override
 405     public void setContactBlocked(final String number, final boolean blocked) {
 406         try {
 407             m.setContactBlocked(getSingleRecipientIdentifier(number, m.getSelfNumber()), blocked);
 408         } catch (NotMasterDeviceException e) {
 409             throw new Error.Failure("This command doesn't work on linked devices.");
 410         } catch (IOException e) {
 411             throw new Error.Failure(e.getMessage());
 412         }
 413     }
 414
 415     @Override
 416     public void setGroupBlocked(final byte[] groupId, final boolean blocked) {
 417         try {
 418             m.setGroupBlocked(getGroupId(groupId), blocked);
 419         } catch (NotMasterDeviceException e) {
 420             throw new Error.Failure("This command doesn't work on linked devices.");
 421         } catch (GroupNotFoundException e) {
 422             throw new Error.GroupNotFound(e.getMessage());
 423         } catch (IOException e) {
 424             throw new Error.Failure(e.getMessage());
 425         }
 426     }
 427
 428     @Override
 429     public List<byte[]> getGroupIds() {
 430         var groups = m.getGroups();
 431         var ids = new ArrayList<byte[]>(groups.size());
 432         for (var group : groups) {
 433             ids.add(group.groupId().serialize());
 434         }
 435         return ids;
 436     }
 437
 438     @Override
 439     public DBusPath getGroup(final byte[] groupId) {
 440         updateGroups();
 441         final var groupOptional = groups.stream().filter(g -> Arrays.equals(g.getId(), groupId)).findFirst();
 442         if (groupOptional.isEmpty()) {
 443             throw new Error.GroupNotFound("Group not found");
 444         }
 445         return groupOptional.get().getObjectPath();
 446     }
 447
 448     @Override
 449     public List<StructGroup> listGroups() {
 450         updateGroups();
 451         return groups;
 452     }
 453
 454     @Override
 455     public String getGroupName(final byte[] groupId) {
 456         var group = m.getGroup(getGroupId(groupId));
 457         if (group == null || group.title() == null) {
 458             return "";
 459         } else {
 460             return group.title();
 461         }
 462     }
 463
 464     @Override
 465     public List<String> getGroupMembers(final byte[] groupId) {
 466         var group = m.getGroup(getGroupId(groupId));
 467         if (group == null) {
 468             return List.of();
 469         } else {
 470             final var members = group.members();
 471             return getRecipientStrings(members);
 472         }
 473     }
 474
 475     @Override
 476     public byte[] createGroup(
 477             final String name, final List<String> members, final String avatar
 478     ) throws Error.AttachmentInvalid, Error.Failure, Error.InvalidNumber {
 479         return updateGroup(new byte[0], name, members, avatar);
 480     }
 481
 482     @Override
 483     public byte[] updateGroup(byte[] groupId, String name, List<String> members, String avatar) {
 484         try {
 485             groupId = nullIfEmpty(groupId);
 486             name = nullIfEmpty(name);
 487             avatar = nullIfEmpty(avatar);
 488             final var memberIdentifiers = getSingleRecipientIdentifiers(members, m.getSelfNumber());
 489             if (groupId == null) {
 490                 final var results = m.createGroup(name, memberIdentifiers, avatar == null ? null : new File(avatar));
 491                 checkSendMessageResults(results.second().timestamp(), results.second().results());
 492                 return results.first().serialize();
 493             } else {
 494                 final var results = m.updateGroup(getGroupId(groupId),
 495                         UpdateGroup.newBuilder()
 496                                 .withName(name)
 497                                 .withMembers(memberIdentifiers)
 498                                 .withAvatarFile(avatar == null ? null : new File(avatar))
 499                                 .build());
 500                 if (results != null) {
 501                     checkSendMessageResults(results.timestamp(), results.results());
 502                 }
 503                 return groupId;
 504             }
 505         } catch (IOException e) {
 506             throw new Error.Failure(e.getMessage());
 507         } catch (GroupNotFoundException | NotAGroupMemberException | GroupSendingNotAllowedException e) {
 508             throw new Error.GroupNotFound(e.getMessage());
 509         } catch (AttachmentInvalidException e) {
 510             throw new Error.AttachmentInvalid(e.getMessage());
 511         }
 512     }
 513
 514     @Override
 515     public boolean isRegistered() {
 516         return true;
 517     }
 518
 519     @Override
 520     public boolean isRegistered(String number) {
 521         var result = isRegistered(List.of(number));
 522         return result.get(0);
 523     }
 524
 525     @Override
 526     public List<Boolean> isRegistered(List<String> numbers) {
 527         var results = new ArrayList<Boolean>();
 528         if (numbers.isEmpty()) {
 529             return results;
 530         }
 531
 532         Map<String, Pair<String, UUID>> registered;
 533         try {
 534             registered = m.areUsersRegistered(new HashSet<>(numbers));
 535         } catch (IOException e) {
 536             throw new Error.Failure(e.getMessage());
 537         }
 538
 539         return numbers.stream().map(number -> {
 540             var uuid = registered.get(number).second();
 541             return uuid != null;
 542         }).collect(Collectors.toList());
 543     }
 544
 545     @Override
 546     public void updateProfile(
 547             String givenName,
 548             String familyName,
 549             String about,
 550             String aboutEmoji,
 551             String avatarPath,
 552             final boolean removeAvatar
 553     ) {
 554         try {
 555             givenName = nullIfEmpty(givenName);
 556             familyName = nullIfEmpty(familyName);
 557             about = nullIfEmpty(about);
 558             aboutEmoji = nullIfEmpty(aboutEmoji);
 559             avatarPath = nullIfEmpty(avatarPath);
 560             Optional<File> avatarFile = removeAvatar
 561                     ? Optional.empty()
 562                     : avatarPath == null ? null : Optional.of(new File(avatarPath));
 563             m.setProfile(givenName, familyName, about, aboutEmoji, avatarFile);
 564         } catch (IOException e) {
 565             throw new Error.Failure(e.getMessage());
 566         }
 567     }
 568
 569     @Override
 570     public void updateProfile(
 571             final String name,
 572             final String about,
 573             final String aboutEmoji,
 574             String avatarPath,
 575             final boolean removeAvatar
 576     ) {
 577         updateProfile(name, "", about, aboutEmoji, avatarPath, removeAvatar);
 578     }
 579
 580     @Override
 581     public void removePin() {
 582         try {
 583             m.setRegistrationLockPin(Optional.empty());
 584         } catch (IOException e) {
 585             throw new Error.Failure("Remove pin error: " + e.getMessage());
 586         }
 587     }
 588
 589     @Override
 590     public void setPin(String registrationLockPin) {
 591         try {
 592             m.setRegistrationLockPin(Optional.of(registrationLockPin));
 593         } catch (IOException e) {
 594             throw new Error.Failure("Set pin error: " + e.getMessage());
 595         }
 596     }
 597
 598     // Provide option to query a version string in order to react on potential
 599     // future interface changes
 600     @Override
 601     public String version() {
 602         return BaseConfig.PROJECT_VERSION;
 603     }
 604
 605     // Create a unique list of Numbers from Identities and Contacts to really get
 606     // all numbers the system knows
 607     @Override
 608     public List<String> listNumbers() {
 609         return Stream.concat(m.getIdentities().stream().map(Identity::recipient),
 610                         m.getContacts().stream().map(Pair::first))
 611                 .map(a -> a.getNumber().orElse(null))
 612                 .filter(Objects::nonNull)
 613                 .distinct()
 614                 .collect(Collectors.toList());
 615     }
 616
 617     @Override
 618     public List<String> getContactNumber(final String name) {
 619         // Contact names have precedence.
 620         var numbers = new ArrayList<String>();
 621         var contacts = m.getContacts();
 622         for (var c : contacts) {
 623             if (name.equals(c.second().getName())) {
 624                 numbers.add(c.first().getLegacyIdentifier());
 625             }
 626         }
 627         // Try profiles if no contact name was found
 628         for (var identity : m.getIdentities()) {
 629             final var address = identity.recipient();
 630             var number = address.getNumber().orElse(null);
 631             if (number != null) {
 632                 Profile profile = null;
 633                 try {
 634                     profile = m.getRecipientProfile(RecipientIdentifier.Single.fromAddress(address));
 635                 } catch (IOException ignored) {
 636                 }
 637                 if (profile != null && profile.getDisplayName().equals(name)) {
 638                     numbers.add(number);
 639                 }
 640             }
 641         }
 642         return numbers;
 643     }
 644
 645     @Override
 646     public void quitGroup(final byte[] groupId) {
 647         var group = getGroupId(groupId);
 648         try {
 649             m.quitGroup(group, Set.of());
 650         } catch (GroupNotFoundException | NotAGroupMemberException e) {
 651             throw new Error.GroupNotFound(e.getMessage());
 652         } catch (IOException | LastGroupAdminException e) {
 653             throw new Error.Failure(e.getMessage());
 654         }
 655     }
 656
 657     @Override
 658     public byte[] joinGroup(final String groupLink) {
 659         try {
 660             final var linkUrl = GroupInviteLinkUrl.fromUri(groupLink);
 661             if (linkUrl == null) {
 662                 throw new Error.Failure("Group link is invalid:");
 663             }
 664             final var result = m.joinGroup(linkUrl);
 665             return result.first().serialize();
 666         } catch (GroupInviteLinkUrl.InvalidGroupLinkException | InactiveGroupLinkException e) {
 667             throw new Error.Failure("Group link is invalid: " + e.getMessage());
 668         } catch (GroupInviteLinkUrl.UnknownGroupLinkVersionException e) {
 669             throw new Error.Failure("Group link was created with an incompatible version: " + e.getMessage());
 670         } catch (IOException e) {
 671             throw new Error.Failure(e.getMessage());
 672         }
 673     }
 674
 675     @Override
 676     public boolean isContactBlocked(final String number) {
 677         return m.isContactBlocked(getSingleRecipientIdentifier(number, m.getSelfNumber()));
 678     }
 679
 680     @Override
 681     public boolean isGroupBlocked(final byte[] groupId) {
 682         var group = m.getGroup(getGroupId(groupId));
 683         if (group == null) {
 684             return false;
 685         } else {
 686             return group.isBlocked();
 687         }
 688     }
 689
 690     @Override
 691     public boolean isMember(final byte[] groupId) {
 692         var group = m.getGroup(getGroupId(groupId));
 693         if (group == null) {
 694             return false;
 695         } else {
 696             return group.isMember();
 697         }
 698     }
 699
 700     @Override
 701     public String uploadStickerPack(String stickerPackPath) {
 702         File path = new File(stickerPackPath);
 703         try {
 704             return m.uploadStickerPack(path).toString();
 705         } catch (IOException e) {
 706             throw new Error.Failure("Upload error (maybe image size is too large):" + e.getMessage());
 707         } catch (StickerPackInvalidException e) {
 708             throw new Error.Failure("Invalid sticker pack: " + e.getMessage());
 709         }
 710     }
 711
 712     private static void checkSendMessageResult(long timestamp, SendMessageResult result) throws DBusExecutionException {
 713         var error = ErrorUtils.getErrorMessageFromSendMessageResult(result);
 714
 715         if (error == null) {
 716             return;
 717         }
 718
 719         final var message = timestamp + "\nFailed to send message:\n" + error + '\n';
 720
 721         if (result.isIdentityFailure()) {
 722             throw new Error.UntrustedIdentity(message);
 723         } else {
 724             throw new Error.Failure(message);
 725         }
 726     }
 727
 728     private static void checkSendMessageResults(
 729             long timestamp, Map<RecipientIdentifier, List<SendMessageResult>> results
 730     ) throws DBusExecutionException {
 731         final var sendMessageResults = results.values().stream().findFirst();
 732         if (results.size() == 1 && sendMessageResults.get().size() == 1) {
 733             checkSendMessageResult(timestamp, sendMessageResults.get().stream().findFirst().get());
 734             return;
 735         }
 736
 737         var errors = ErrorUtils.getErrorMessagesFromSendMessageResults(results);
 738         if (errors.size() == 0) {
 739             return;
 740         }
 741
 742         var message = new StringBuilder();
 743         message.append(timestamp).append('\n');
 744         message.append("Failed to send (some) messages:\n");
 745         for (var error : errors) {
 746             message.append(error).append('\n');
 747         }
 748
 749         throw new Error.Failure(message.toString());
 750     }
 751
 752     private static void checkSendMessageResults(
 753             long timestamp, Collection<SendMessageResult> results
 754     ) throws DBusExecutionException {
 755         if (results.size() == 1) {
 756             checkSendMessageResult(timestamp, results.stream().findFirst().get());
 757             return;
 758         }
 759
 760         var errors = ErrorUtils.getErrorMessagesFromSendMessageResults(results);
 761         if (errors.size() == 0) {
 762             return;
 763         }
 764
 765         var message = new StringBuilder();
 766         message.append(timestamp).append('\n');
 767         message.append("Failed to send (some) messages:\n");
 768         for (var error : errors) {
 769             message.append(error).append('\n');
 770         }
 771
 772         throw new Error.Failure(message.toString());
 773     }
 774
 775     private static List<String> getRecipientStrings(final Set<RecipientAddress> members) {
 776         return members.stream().map(RecipientAddress::getLegacyIdentifier).collect(Collectors.toList());
 777     }
 778
 779     private static Set<RecipientIdentifier.Single> getSingleRecipientIdentifiers(
 780             final Collection<String> recipientStrings, final String localNumber
 781     ) throws DBusExecutionException {
 782         final var identifiers = new HashSet<RecipientIdentifier.Single>();
 783         for (var recipientString : recipientStrings) {
 784             identifiers.add(getSingleRecipientIdentifier(recipientString, localNumber));
 785         }
 786         return identifiers;
 787     }
 788
 789     private static RecipientIdentifier.Single getSingleRecipientIdentifier(
 790             final String recipientString, final String localNumber
 791     ) throws DBusExecutionException {
 792         try {
 793             return RecipientIdentifier.Single.fromString(recipientString, localNumber);
 794         } catch (InvalidNumberException e) {
 795             throw new Error.InvalidNumber(e.getMessage());
 796         }
 797     }
 798
 799     private static GroupId getGroupId(byte[] groupId) throws DBusExecutionException {
 800         try {
 801             return GroupId.unknownVersion(groupId);
 802         } catch (Throwable e) {
 803             throw new Error.InvalidGroupId("Invalid group id: " + e.getMessage());
 804         }
 805     }
 806
 807     private byte[] nullIfEmpty(final byte[] array) {
 808         return array.length == 0 ? null : array;
 809     }
 810
 811     private String nullIfEmpty(final String name) {
 812         return name.isEmpty() ? null : name;
 813     }
 814
 815     private String emptyIfNull(final String string) {
 816         return string == null ? "" : string;
 817     }
 818
 819     private static String getDeviceObjectPath(String basePath, long deviceId) {
 820         return basePath + "/Devices/" + deviceId;
 821     }
 822
 823     private void updateDevices() {
 824         List<org.asamk.signal.manager.api.Device> linkedDevices;
 825         try {
 826             linkedDevices = m.getLinkedDevices();
 827         } catch (IOException e) {
 828             throw new Error.Failure("Failed to get linked devices: " + e.getMessage());
 829         }
 830
 831         unExportDevices();
 832
 833         linkedDevices.forEach(d -> {
 834             final var object = new DbusSignalDeviceImpl(d);
 835             final var deviceObjectPath = object.getObjectPath();
 836             try {
 837                 connection.exportObject(object);
 838             } catch (DBusException e) {
 839                 e.printStackTrace();
 840             }
 841             if (d.isThisDevice()) {
 842                 thisDevice = new DBusPath(deviceObjectPath);
 843             }
 844             this.devices.add(new StructDevice(new DBusPath(deviceObjectPath), d.id(), emptyIfNull(d.name())));
 845         });
 846     }
 847
 848     private void unExportDevices() {
 849         this.devices.stream()
 850                 .map(StructDevice::getObjectPath)
 851                 .map(DBusPath::getPath)
 852                 .forEach(connection::unExportObject);
 853         this.devices.clear();
 854     }
 855
 856     private static String getGroupObjectPath(String basePath, byte[] groupId) {
 857         return basePath + "/Groups/" + Base64.getEncoder()
 858                 .encodeToString(groupId)
 859                 .replace("+", "_")
 860                 .replace("/", "_")
 861                 .replace("=", "_");
 862     }
 863
 864     private void updateGroups() {
 865         List<org.asamk.signal.manager.api.Group> groups;
 866         groups = m.getGroups();
 867
 868         unExportGroups();
 869
 870         groups.forEach(g -> {
 871             final var object = new DbusSignalGroupImpl(g.groupId());
 872             try {
 873                 connection.exportObject(object);
 874             } catch (DBusException e) {
 875                 e.printStackTrace();
 876             }
 877             this.groups.add(new StructGroup(new DBusPath(object.getObjectPath()),
 878                     g.groupId().serialize(),
 879                     emptyIfNull(g.title())));
 880         });
 881     }
 882
 883     private void unExportGroups() {
 884         this.groups.stream().map(StructGroup::getObjectPath).map(DBusPath::getPath).forEach(connection::unExportObject);
 885         this.groups.clear();
 886     }
 887
 888     public class DbusSignalDeviceImpl extends DbusProperties implements Signal.Device {
 889
 890         private final org.asamk.signal.manager.api.Device device;
 891
 892         public DbusSignalDeviceImpl(final org.asamk.signal.manager.api.Device device) {
 893             super.addPropertiesHandler(new DbusInterfacePropertiesHandler("org.asamk.Signal.Device",
 894                     List.of(new DbusProperty<>("Id", device::id),
 895                             new DbusProperty<>("Name", () -> emptyIfNull(device.name()), this::setDeviceName),
 896                             new DbusProperty<>("Created", device::created),
 897                             new DbusProperty<>("LastSeen", device::lastSeen))));
 898             this.device = device;
 899         }
 900
 901         @Override
 902         public String getObjectPath() {
 903             return getDeviceObjectPath(objectPath, device.id());
 904         }
 905
 906         @Override
 907         public void removeDevice() throws Error.Failure {
 908             try {
 909                 m.removeLinkedDevices(device.id());
 910                 updateDevices();
 911             } catch (IOException e) {
 912                 throw new Error.Failure(e.getMessage());
 913             }
 914         }
 915
 916         private void setDeviceName(String name) {
 917             if (!device.isThisDevice()) {
 918                 throw new Error.Failure("Only the name of this device can be changed");
 919             }
 920             try {
 921                 m.updateAccountAttributes(name);
 922                 // update device list
 923                 updateDevices();
 924             } catch (IOException e) {
 925                 throw new Error.Failure(e.getMessage());
 926             }
 927         }
 928     }
 929
 930     public class DbusSignalGroupImpl extends DbusProperties implements Signal.Group {
 931
 932         private final GroupId groupId;
 933
 934         public DbusSignalGroupImpl(final GroupId groupId) {
 935             this.groupId = groupId;
 936             super.addPropertiesHandler(new DbusInterfacePropertiesHandler("org.asamk.Signal.Group",
 937                     List.of(new DbusProperty<>("Id", groupId::serialize),
 938                             new DbusProperty<>("Name", () -> emptyIfNull(getGroup().title()), this::setGroupName),
 939                             new DbusProperty<>("Description",
 940                                     () -> emptyIfNull(getGroup().description()),
 941                                     this::setGroupDescription),
 942                             new DbusProperty<>("Avatar", this::setGroupAvatar),
 943                             new DbusProperty<>("IsBlocked", () -> getGroup().isBlocked(), this::setIsBlocked),
 944                             new DbusProperty<>("IsMember", () -> getGroup().isMember()),
 945                             new DbusProperty<>("IsAdmin", () -> getGroup().isAdmin()),
 946                             new DbusProperty<>("MessageExpirationTimer",
 947                                     () -> getGroup().messageExpirationTimer(),
 948                                     this::setMessageExpirationTime),
 949                             new DbusProperty<>("Members",
 950                                     () -> new Variant<>(getRecipientStrings(getGroup().members()), "as")),
 951                             new DbusProperty<>("PendingMembers",
 952                                     () -> new Variant<>(getRecipientStrings(getGroup().pendingMembers()), "as")),
 953                             new DbusProperty<>("RequestingMembers",
 954                                     () -> new Variant<>(getRecipientStrings(getGroup().requestingMembers()), "as")),
 955                             new DbusProperty<>("Admins",
 956                                     () -> new Variant<>(getRecipientStrings(getGroup().adminMembers()), "as")),
 957                             new DbusProperty<>("PermissionAddMember",
 958                                     () -> getGroup().permissionAddMember().name(),
 959                                     this::setGroupPermissionAddMember),
 960                             new DbusProperty<>("PermissionEditDetails",
 961                                     () -> getGroup().permissionEditDetails().name(),
 962                                     this::setGroupPermissionEditDetails),
 963                             new DbusProperty<>("PermissionSendMessage",
 964                                     () -> getGroup().permissionSendMessage().name(),
 965                                     this::setGroupPermissionSendMessage),
 966                             new DbusProperty<>("GroupInviteLink", () -> {
 967                                 final var groupInviteLinkUrl = getGroup().groupInviteLinkUrl();
 968                                 return groupInviteLinkUrl == null ? "" : groupInviteLinkUrl.getUrl();
 969                             }))));
 970         }
 971
 972         @Override
 973         public String getObjectPath() {
 974             return getGroupObjectPath(objectPath, groupId.serialize());
 975         }
 976
 977         @Override
 978         public void quitGroup() throws Error.Failure {
 979             try {
 980                 m.quitGroup(groupId, Set.of());
 981             } catch (GroupNotFoundException | NotAGroupMemberException e) {
 982                 throw new Error.GroupNotFound(e.getMessage());
 983             } catch (IOException e) {
 984                 throw new Error.Failure(e.getMessage());
 985             } catch (LastGroupAdminException e) {
 986                 throw new Error.LastGroupAdmin(e.getMessage());
 987             }
 988         }
 989
 990         @Override
 991         public void addMembers(final List<String> recipients) throws Error.Failure {
 992             final var memberIdentifiers = getSingleRecipientIdentifiers(recipients, m.getSelfNumber());
 993             updateGroup(UpdateGroup.newBuilder().withMembers(memberIdentifiers).build());
 994         }
 995
 996         @Override
 997         public void removeMembers(final List<String> recipients) throws Error.Failure {
 998             final var memberIdentifiers = getSingleRecipientIdentifiers(recipients, m.getSelfNumber());
 999             updateGroup(UpdateGroup.newBuilder().withRemoveMembers(memberIdentifiers).build());
1000         }
1001
1002         @Override
1003         public void addAdmins(final List<String> recipients) throws Error.Failure {
1004             final var memberIdentifiers = getSingleRecipientIdentifiers(recipients, m.getSelfNumber());
1005             updateGroup(UpdateGroup.newBuilder().withAdmins(memberIdentifiers).build());
1006         }
1007
1008         @Override
1009         public void removeAdmins(final List<String> recipients) throws Error.Failure {
1010             final var memberIdentifiers = getSingleRecipientIdentifiers(recipients, m.getSelfNumber());
1011             updateGroup(UpdateGroup.newBuilder().withRemoveAdmins(memberIdentifiers).build());
1012         }
1013
1014         @Override
1015         public void resetLink() throws Error.Failure {
1016             updateGroup(UpdateGroup.newBuilder().withResetGroupLink(true).build());
1017         }
1018
1019         @Override
1020         public void disableLink() throws Error.Failure {
1021             updateGroup(UpdateGroup.newBuilder().withGroupLinkState(GroupLinkState.DISABLED).build());
1022         }
1023
1024         @Override
1025         public void enableLink(final boolean requiresApproval) throws Error.Failure {
1026             updateGroup(UpdateGroup.newBuilder()
1027                     .withGroupLinkState(requiresApproval
1028                             ? GroupLinkState.ENABLED_WITH_APPROVAL
1029                             : GroupLinkState.ENABLED)
1030                     .build());
1031         }
1032
1033         private org.asamk.signal.manager.api.Group getGroup() {
1034             return m.getGroup(groupId);
1035         }
1036
1037         private void setGroupName(final String name) {
1038             updateGroup(UpdateGroup.newBuilder().withName(name).build());
1039         }
1040
1041         private void setGroupDescription(final String description) {
1042             updateGroup(UpdateGroup.newBuilder().withDescription(description).build());
1043         }
1044
1045         private void setGroupAvatar(final String avatar) {
1046             updateGroup(UpdateGroup.newBuilder().withAvatarFile(new File(avatar)).build());
1047         }
1048
1049         private void setMessageExpirationTime(final int expirationTime) {
1050             updateGroup(UpdateGroup.newBuilder().withExpirationTimer(expirationTime).build());
1051         }
1052
1053         private void setGroupPermissionAddMember(final String permission) {
1054             updateGroup(UpdateGroup.newBuilder().withAddMemberPermission(GroupPermission.valueOf(permission)).build());
1055         }
1056
1057         private void setGroupPermissionEditDetails(final String permission) {
1058             updateGroup(UpdateGroup.newBuilder()
1059                     .withEditDetailsPermission(GroupPermission.valueOf(permission))
1060                     .build());
1061         }
1062
1063         private void setGroupPermissionSendMessage(final String permission) {
1064             updateGroup(UpdateGroup.newBuilder()
1065                     .withIsAnnouncementGroup(GroupPermission.valueOf(permission) == GroupPermission.ONLY_ADMINS)
1066                     .build());
1067         }
1068
1069         private void setIsBlocked(final boolean isBlocked) {
1070             try {
1071                 m.setGroupBlocked(groupId, isBlocked);
1072             } catch (NotMasterDeviceException e) {
1073                 throw new Error.Failure("This command doesn't work on linked devices.");
1074             } catch (GroupNotFoundException e) {
1075                 throw new Error.GroupNotFound(e.getMessage());
1076             } catch (IOException e) {
1077                 throw new Error.Failure(e.getMessage());
1078             }
1079         }
1080
1081         private void updateGroup(final UpdateGroup updateGroup) {
1082             try {
1083                 m.updateGroup(groupId, updateGroup);
1084             } catch (IOException e) {
1085                 throw new Error.Failure(e.getMessage());
1086             } catch (GroupNotFoundException | NotAGroupMemberException | GroupSendingNotAllowedException e) {
1087                 throw new Error.GroupNotFound(e.getMessage());
1088             } catch (AttachmentInvalidException e) {
1089                 throw new Error.AttachmentInvalid(e.getMessage());
1090             }
1091         }
1092     }
1093 }