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.commands.exceptions.IOErrorException;
   6 import org.asamk.signal.manager.AttachmentInvalidException;
   7 import org.asamk.signal.manager.Manager;
   8 import org.asamk.signal.manager.NotMasterDeviceException;
   9 import org.asamk.signal.manager.StickerPackInvalidException;
  10 import org.asamk.signal.manager.UntrustedIdentityException;
  11 import org.asamk.signal.manager.api.Identity;
  12 import org.asamk.signal.manager.api.Message;
  13 import org.asamk.signal.manager.api.RecipientIdentifier;
  14 import org.asamk.signal.manager.api.TypingAction;
  15 import org.asamk.signal.manager.api.UpdateGroup;
  16 import org.asamk.signal.manager.groups.GroupId;
  17 import org.asamk.signal.manager.groups.GroupInviteLinkUrl;
  18 import org.asamk.signal.manager.groups.GroupLinkState;
  19 import org.asamk.signal.manager.groups.GroupNotFoundException;
  20 import org.asamk.signal.manager.groups.GroupPermission;
  21 import org.asamk.signal.manager.groups.GroupSendingNotAllowedException;
  22 import org.asamk.signal.manager.groups.LastGroupAdminException;
  23 import org.asamk.signal.manager.groups.NotAGroupMemberException;
  24 import org.asamk.signal.manager.storage.recipients.Profile;
  25 import org.asamk.signal.manager.storage.recipients.RecipientAddress;
  26 import org.asamk.signal.util.ErrorUtils;
  27 import org.freedesktop.dbus.DBusPath;
  28 import org.freedesktop.dbus.connections.impl.DBusConnection;
  29 import org.freedesktop.dbus.exceptions.DBusException;
  30 import org.freedesktop.dbus.exceptions.DBusExecutionException;
  31 import org.freedesktop.dbus.types.Variant;
  32 import org.whispersystems.libsignal.InvalidKeyException;
  33 import org.whispersystems.libsignal.util.Pair;
  34 import org.whispersystems.libsignal.util.guava.Optional;
  35 import org.whispersystems.signalservice.api.groupsv2.GroupLinkNotActiveException;
  36 import org.whispersystems.signalservice.api.messages.SendMessageResult;
  37 import org.whispersystems.signalservice.api.push.exceptions.UnregisteredUserException;
  38 import org.whispersystems.signalservice.api.util.InvalidNumberException;
  39 import org.whispersystems.signalservice.internal.contacts.crypto.UnauthenticatedResponseException;
  40
  41 import java.io.File;
  42 import java.io.IOException;
  43 import java.net.URI;
  44 import java.net.URISyntaxException;
  45 import java.util.ArrayList;
  46 import java.util.Arrays;
  47 import java.util.Base64;
  48 import java.util.Collection;
  49 import java.util.HashSet;
  50 import java.util.List;
  51 import java.util.Map;
  52 import java.util.Objects;
  53 import java.util.Set;
  54 import java.util.UUID;
  55 import java.util.stream.Collectors;
  56 import java.util.stream.Stream;
  57
  58 public class DbusSignalImpl implements Signal {
  59
  60     private final Manager m;
  61     private final DBusConnection connection;
  62     private final String objectPath;
  63
  64     private DBusPath thisDevice;
  65     private final List<StructDevice> devices = new ArrayList<>();
  66     private final List<StructGroup> groups = new ArrayList<>();
  67
  68     public DbusSignalImpl(final Manager m, DBusConnection connection, final String objectPath) {
  69         this.m = m;
  70         this.connection = connection;
  71         this.objectPath = objectPath;
  72     }
  73
  74     public void initObjects() {
  75         updateDevices();
  76         updateGroups();
  77     }
  78
  79     public void close() {
  80         unExportDevices();
  81     }
  82
  83     @Override
  84     public String getObjectPath() {
  85         return objectPath;
  86     }
  87
  88     @Override
  89     public String getSelfNumber() {
  90         return m.getSelfNumber();
  91     }
  92
  93     @Override
  94     public void submitRateLimitChallenge(String challenge, String captchaString) throws IOErrorException {
  95         final var captcha = captchaString == null ? null : captchaString.replace("signalcaptcha://", "");
  96
  97         try {
  98             m.submitRateLimitRecaptchaChallenge(challenge, captcha);
  99         } catch (IOException e) {
 100             throw new IOErrorException("Submit challenge error: " + e.getMessage(), e);
 101         }
 102
 103     }
 104
 105     @Override
 106     public void addDevice(String uri) {
 107         try {
 108             m.addDeviceLink(new URI(uri));
 109         } catch (IOException | InvalidKeyException e) {
 110             throw new Error.Failure(e.getClass().getSimpleName() + " Add device link failed. " + e.getMessage());
 111         } catch (URISyntaxException e) {
 112             throw new Error.InvalidUri(e.getClass().getSimpleName()
 113                     + " Device link uri has invalid format: "
 114                     + e.getMessage());
 115         }
 116     }
 117
 118     @Override
 119     public DBusPath getDevice(long deviceId) {
 120         updateDevices();
 121         final var deviceOptional = devices.stream().filter(g -> g.getId().equals(deviceId)).findFirst();
 122         if (deviceOptional.isEmpty()) {
 123             throw new Error.DeviceNotFound("Device not found");
 124         }
 125         return deviceOptional.get().getObjectPath();
 126     }
 127
 128     @Override
 129     public List<StructDevice> listDevices() {
 130         updateDevices();
 131         return this.devices;
 132     }
 133
 134     @Override
 135     public DBusPath getThisDevice() {
 136         updateDevices();
 137         return thisDevice;
 138     }
 139
 140     @Override
 141     public long sendMessage(final String message, final List<String> attachments, final String recipient) {
 142         var recipients = new ArrayList<String>(1);
 143         recipients.add(recipient);
 144         return sendMessage(message, attachments, recipients);
 145     }
 146
 147     @Override
 148     public long sendMessage(final String message, final List<String> attachments, final List<String> recipients) {
 149         try {
 150             final var results = m.sendMessage(new Message(message, attachments),
 151                     getSingleRecipientIdentifiers(recipients, m.getSelfNumber()).stream()
 152                             .map(RecipientIdentifier.class::cast)
 153                             .collect(Collectors.toSet()));
 154
 155             checkSendMessageResults(results.getTimestamp(), results.getResults());
 156             return results.getTimestamp();
 157         } catch (AttachmentInvalidException e) {
 158             throw new Error.AttachmentInvalid(e.getMessage());
 159         } catch (IOException e) {
 160             throw new Error.Failure(e.getMessage());
 161         } catch (GroupNotFoundException | NotAGroupMemberException | GroupSendingNotAllowedException e) {
 162             throw new Error.GroupNotFound(e.getMessage());
 163         }
 164     }
 165
 166     @Override
 167     public long sendRemoteDeleteMessage(
 168             final long targetSentTimestamp, final String recipient
 169     ) {
 170         var recipients = new ArrayList<String>(1);
 171         recipients.add(recipient);
 172         return sendRemoteDeleteMessage(targetSentTimestamp, recipients);
 173     }
 174
 175     @Override
 176     public long sendRemoteDeleteMessage(
 177             final long targetSentTimestamp, final List<String> recipients
 178     ) {
 179         try {
 180             final var results = m.sendRemoteDeleteMessage(targetSentTimestamp,
 181                     getSingleRecipientIdentifiers(recipients, m.getSelfNumber()).stream()
 182                             .map(RecipientIdentifier.class::cast)
 183                             .collect(Collectors.toSet()));
 184             checkSendMessageResults(results.getTimestamp(), results.getResults());
 185             return results.getTimestamp();
 186         } catch (IOException e) {
 187             throw new Error.Failure(e.getMessage());
 188         } catch (GroupNotFoundException | NotAGroupMemberException | GroupSendingNotAllowedException e) {
 189             throw new Error.GroupNotFound(e.getMessage());
 190         }
 191     }
 192
 193     @Override
 194     public long sendGroupRemoteDeleteMessage(
 195             final long targetSentTimestamp, final byte[] groupId
 196     ) {
 197         try {
 198             final var results = m.sendRemoteDeleteMessage(targetSentTimestamp,
 199                     Set.of(new RecipientIdentifier.Group(getGroupId(groupId))));
 200             checkSendMessageResults(results.getTimestamp(), results.getResults());
 201             return results.getTimestamp();
 202         } catch (IOException e) {
 203             throw new Error.Failure(e.getMessage());
 204         } catch (GroupNotFoundException | NotAGroupMemberException | GroupSendingNotAllowedException e) {
 205             throw new Error.GroupNotFound(e.getMessage());
 206         }
 207     }
 208
 209     @Override
 210     public long sendMessageReaction(
 211             final String emoji,
 212             final boolean remove,
 213             final String targetAuthor,
 214             final long targetSentTimestamp,
 215             final String recipient
 216     ) {
 217         var recipients = new ArrayList<String>(1);
 218         recipients.add(recipient);
 219         return sendMessageReaction(emoji, remove, targetAuthor, targetSentTimestamp, recipients);
 220     }
 221
 222     @Override
 223     public long sendMessageReaction(
 224             final String emoji,
 225             final boolean remove,
 226             final String targetAuthor,
 227             final long targetSentTimestamp,
 228             final List<String> recipients
 229     ) {
 230         try {
 231             final var results = m.sendMessageReaction(emoji,
 232                     remove,
 233                     getSingleRecipientIdentifier(targetAuthor, m.getSelfNumber()),
 234                     targetSentTimestamp,
 235                     getSingleRecipientIdentifiers(recipients, m.getSelfNumber()).stream()
 236                             .map(RecipientIdentifier.class::cast)
 237                             .collect(Collectors.toSet()));
 238             checkSendMessageResults(results.getTimestamp(), results.getResults());
 239             return results.getTimestamp();
 240         } catch (IOException e) {
 241             throw new Error.Failure(e.getMessage());
 242         } catch (GroupNotFoundException | NotAGroupMemberException | GroupSendingNotAllowedException e) {
 243             throw new Error.GroupNotFound(e.getMessage());
 244         }
 245     }
 246
 247     @Override
 248     public void sendTyping(
 249             final String recipient, final boolean stop
 250     ) throws Error.Failure, Error.GroupNotFound, Error.UntrustedIdentity {
 251         try {
 252             var recipients = new ArrayList<String>(1);
 253             recipients.add(recipient);
 254             m.sendTypingMessage(stop ? TypingAction.STOP : TypingAction.START,
 255                     getSingleRecipientIdentifiers(recipients, m.getSelfNumber()).stream()
 256                             .map(RecipientIdentifier.class::cast)
 257                             .collect(Collectors.toSet()));
 258         } catch (IOException e) {
 259             throw new Error.Failure(e.getMessage());
 260         } catch (GroupNotFoundException | NotAGroupMemberException | GroupSendingNotAllowedException e) {
 261             throw new Error.GroupNotFound(e.getMessage());
 262         } catch (UntrustedIdentityException e) {
 263             throw new Error.UntrustedIdentity(e.getMessage());
 264         }
 265     }
 266
 267     @Override
 268     public void sendReadReceipt(
 269             final String recipient, final List<Long> messageIds
 270     ) throws Error.Failure, Error.UntrustedIdentity {
 271         try {
 272             m.sendReadReceipt(getSingleRecipientIdentifier(recipient, m.getSelfNumber()), messageIds);
 273         } catch (IOException e) {
 274             throw new Error.Failure(e.getMessage());
 275         } catch (UntrustedIdentityException e) {
 276             throw new Error.UntrustedIdentity(e.getMessage());
 277         }
 278     }
 279
 280     @Override
 281     public void sendContacts() {
 282         try {
 283             m.sendContacts();
 284         } catch (IOException e) {
 285             throw new Error.Failure("SendContacts error: " + e.getMessage());
 286         }
 287     }
 288
 289     @Override
 290     public void sendSyncRequest() {
 291         try {
 292             m.requestAllSyncData();
 293         } catch (IOException e) {
 294             throw new Error.Failure("Request sync data error: " + e.getMessage());
 295         }
 296     }
 297
 298     @Override
 299     public long sendNoteToSelfMessage(
 300             final String message, final List<String> attachments
 301     ) throws Error.AttachmentInvalid, Error.Failure, Error.UntrustedIdentity {
 302         try {
 303             final var results = m.sendMessage(new Message(message, attachments),
 304                     Set.of(RecipientIdentifier.NoteToSelf.INSTANCE));
 305             checkSendMessageResults(results.getTimestamp(), results.getResults());
 306             return results.getTimestamp();
 307         } catch (AttachmentInvalidException e) {
 308             throw new Error.AttachmentInvalid(e.getMessage());
 309         } catch (IOException e) {
 310             throw new Error.Failure(e.getMessage());
 311         } catch (GroupNotFoundException | NotAGroupMemberException | GroupSendingNotAllowedException e) {
 312             throw new Error.GroupNotFound(e.getMessage());
 313         }
 314     }
 315
 316     @Override
 317     public void sendEndSessionMessage(final List<String> recipients) {
 318         try {
 319             final var results = m.sendEndSessionMessage(getSingleRecipientIdentifiers(recipients, m.getSelfNumber()));
 320             checkSendMessageResults(results.getTimestamp(), results.getResults());
 321         } catch (IOException e) {
 322             throw new Error.Failure(e.getMessage());
 323         }
 324     }
 325
 326     @Override
 327     public long sendGroupMessage(final String message, final List<String> attachments, final byte[] groupId) {
 328         try {
 329             var results = m.sendMessage(new Message(message, attachments),
 330                     Set.of(new RecipientIdentifier.Group(getGroupId(groupId))));
 331             checkSendMessageResults(results.getTimestamp(), results.getResults());
 332             return results.getTimestamp();
 333         } catch (IOException e) {
 334             throw new Error.Failure(e.getMessage());
 335         } catch (GroupNotFoundException | NotAGroupMemberException | GroupSendingNotAllowedException e) {
 336             throw new Error.GroupNotFound(e.getMessage());
 337         } catch (AttachmentInvalidException e) {
 338             throw new Error.AttachmentInvalid(e.getMessage());
 339         }
 340     }
 341
 342     @Override
 343     public long sendGroupMessageReaction(
 344             final String emoji,
 345             final boolean remove,
 346             final String targetAuthor,
 347             final long targetSentTimestamp,
 348             final byte[] groupId
 349     ) {
 350         try {
 351             final var results = m.sendMessageReaction(emoji,
 352                     remove,
 353                     getSingleRecipientIdentifier(targetAuthor, m.getSelfNumber()),
 354                     targetSentTimestamp,
 355                     Set.of(new RecipientIdentifier.Group(getGroupId(groupId))));
 356             checkSendMessageResults(results.getTimestamp(), results.getResults());
 357             return results.getTimestamp();
 358         } catch (IOException e) {
 359             throw new Error.Failure(e.getMessage());
 360         } catch (GroupNotFoundException | NotAGroupMemberException | GroupSendingNotAllowedException e) {
 361             throw new Error.GroupNotFound(e.getMessage());
 362         }
 363     }
 364
 365     // Since contact names might be empty if not defined, also potentially return
 366     // the profile name
 367     @Override
 368     public String getContactName(final String number) {
 369         final var name = m.getContactOrProfileName(getSingleRecipientIdentifier(number, m.getSelfNumber()));
 370         return name == null ? "" : name;
 371     }
 372
 373     @Override
 374     public void setContactName(final String number, final String name) {
 375         try {
 376             m.setContactName(getSingleRecipientIdentifier(number, m.getSelfNumber()), name);
 377         } catch (NotMasterDeviceException e) {
 378             throw new Error.Failure("This command doesn't work on linked devices.");
 379         } catch (UnregisteredUserException e) {
 380             throw new Error.Failure("Contact is not registered.");
 381         }
 382     }
 383
 384     @Override
 385     public void setExpirationTimer(final String number, final int expiration) {
 386         try {
 387             m.setExpirationTimer(getSingleRecipientIdentifier(number, m.getSelfNumber()), expiration);
 388         } catch (IOException e) {
 389             throw new Error.Failure(e.getMessage());
 390         }
 391     }
 392
 393     @Override
 394     public void setContactBlocked(final String number, final boolean blocked) {
 395         try {
 396             m.setContactBlocked(getSingleRecipientIdentifier(number, m.getSelfNumber()), blocked);
 397         } catch (NotMasterDeviceException e) {
 398             throw new Error.Failure("This command doesn't work on linked devices.");
 399         } catch (IOException e) {
 400             throw new Error.Failure(e.getMessage());
 401         }
 402     }
 403
 404     @Override
 405     public void setGroupBlocked(final byte[] groupId, final boolean blocked) {
 406         try {
 407             m.setGroupBlocked(getGroupId(groupId), blocked);
 408         } catch (GroupNotFoundException e) {
 409             throw new Error.GroupNotFound(e.getMessage());
 410         } catch (IOException e) {
 411             throw new Error.Failure(e.getMessage());
 412         }
 413     }
 414
 415     @Override
 416     public List<byte[]> getGroupIds() {
 417         var groups = m.getGroups();
 418         var ids = new ArrayList<byte[]>(groups.size());
 419         for (var group : groups) {
 420             ids.add(group.getGroupId().serialize());
 421         }
 422         return ids;
 423     }
 424
 425     @Override
 426     public DBusPath getGroup(final byte[] groupId) {
 427         updateGroups();
 428         final var groupOptional = groups.stream().filter(g -> Arrays.equals(g.getId(), groupId)).findFirst();
 429         if (groupOptional.isEmpty()) {
 430             throw new Error.GroupNotFound("Group not found");
 431         }
 432         return groupOptional.get().getObjectPath();
 433     }
 434
 435     @Override
 436     public List<StructGroup> listGroups() {
 437         updateGroups();
 438         return groups;
 439     }
 440
 441     @Override
 442     public String getGroupName(final byte[] groupId) {
 443         var group = m.getGroup(getGroupId(groupId));
 444         if (group == null || group.getTitle() == null) {
 445             return "";
 446         } else {
 447             return group.getTitle();
 448         }
 449     }
 450
 451     @Override
 452     public List<String> getGroupMembers(final byte[] groupId) {
 453         var group = m.getGroup(getGroupId(groupId));
 454         if (group == null) {
 455             return List.of();
 456         } else {
 457             final var members = group.getMembers();
 458             return getRecipientStrings(members);
 459         }
 460     }
 461
 462     @Override
 463     public byte[] createGroup(
 464             final String name, final List<String> members, final String avatar
 465     ) throws Error.AttachmentInvalid, Error.Failure, Error.InvalidNumber {
 466         return updateGroup(new byte[0], name, members, avatar);
 467     }
 468
 469     @Override
 470     public byte[] updateGroup(byte[] groupId, String name, List<String> members, String avatar) {
 471         try {
 472             groupId = nullIfEmpty(groupId);
 473             name = nullIfEmpty(name);
 474             avatar = nullIfEmpty(avatar);
 475             final var memberIdentifiers = getSingleRecipientIdentifiers(members, m.getSelfNumber());
 476             if (groupId == null) {
 477                 final var results = m.createGroup(name, memberIdentifiers, avatar == null ? null : new File(avatar));
 478                 checkSendMessageResults(results.second().getTimestamp(), results.second().getResults());
 479                 return results.first().serialize();
 480             } else {
 481                 final var results = m.updateGroup(getGroupId(groupId),
 482                         UpdateGroup.newBuilder()
 483                                 .withName(name)
 484                                 .withMembers(memberIdentifiers)
 485                                 .withAvatarFile(avatar == null ? null : new File(avatar))
 486                                 .build());
 487                 if (results != null) {
 488                     checkSendMessageResults(results.getTimestamp(), results.getResults());
 489                 }
 490                 return groupId;
 491             }
 492         } catch (IOException e) {
 493             throw new Error.Failure(e.getMessage());
 494         } catch (GroupNotFoundException | NotAGroupMemberException | GroupSendingNotAllowedException e) {
 495             throw new Error.GroupNotFound(e.getMessage());
 496         } catch (AttachmentInvalidException e) {
 497             throw new Error.AttachmentInvalid(e.getMessage());
 498         }
 499     }
 500
 501     @Override
 502     public boolean isRegistered() {
 503         return true;
 504     }
 505
 506     @Override
 507     public boolean isRegistered(String number) {
 508         var result = isRegistered(List.of(number));
 509         return result.get(0);
 510     }
 511
 512     @Override
 513     public List<Boolean> isRegistered(List<String> numbers) {
 514         var results = new ArrayList<Boolean>();
 515         if (numbers.isEmpty()) {
 516             return results;
 517         }
 518
 519         Map<String, Pair<String, UUID>> registered;
 520         try {
 521             registered = m.areUsersRegistered(new HashSet<>(numbers));
 522         } catch (IOException e) {
 523             throw new Error.Failure(e.getMessage());
 524         }
 525
 526         return numbers.stream().map(number -> {
 527             var uuid = registered.get(number).second();
 528             return uuid != null;
 529         }).collect(Collectors.toList());
 530     }
 531
 532     @Override
 533     public void updateProfile(
 534             String givenName,
 535             String familyName,
 536             String about,
 537             String aboutEmoji,
 538             String avatarPath,
 539             final boolean removeAvatar
 540     ) {
 541         try {
 542             givenName = nullIfEmpty(givenName);
 543             familyName = nullIfEmpty(familyName);
 544             about = nullIfEmpty(about);
 545             aboutEmoji = nullIfEmpty(aboutEmoji);
 546             avatarPath = nullIfEmpty(avatarPath);
 547             Optional<File> avatarFile = removeAvatar
 548                     ? Optional.absent()
 549                     : avatarPath == null ? null : Optional.of(new File(avatarPath));
 550             m.setProfile(givenName, familyName, about, aboutEmoji, avatarFile);
 551         } catch (IOException e) {
 552             throw new Error.Failure(e.getMessage());
 553         }
 554     }
 555
 556     @Override
 557     public void updateProfile(
 558             final String name,
 559             final String about,
 560             final String aboutEmoji,
 561             String avatarPath,
 562             final boolean removeAvatar
 563     ) {
 564         updateProfile(name, "", about, aboutEmoji, avatarPath, removeAvatar);
 565     }
 566
 567     @Override
 568     public void removePin() {
 569         try {
 570             m.setRegistrationLockPin(Optional.absent());
 571         } catch (UnauthenticatedResponseException e) {
 572             throw new Error.Failure("Remove pin failed with unauthenticated response: " + e.getMessage());
 573         } catch (IOException e) {
 574             throw new Error.Failure("Remove pin error: " + e.getMessage());
 575         }
 576     }
 577
 578     @Override
 579     public void setPin(String registrationLockPin) {
 580         try {
 581             m.setRegistrationLockPin(Optional.of(registrationLockPin));
 582         } catch (UnauthenticatedResponseException e) {
 583             throw new Error.Failure("Set pin error failed with unauthenticated response: " + e.getMessage());
 584         } catch (IOException e) {
 585             throw new Error.Failure("Set pin error: " + e.getMessage());
 586         }
 587     }
 588
 589     // Provide option to query a version string in order to react on potential
 590     // future interface changes
 591     @Override
 592     public String version() {
 593         return BaseConfig.PROJECT_VERSION;
 594     }
 595
 596     // Create a unique list of Numbers from Identities and Contacts to really get
 597     // all numbers the system knows
 598     @Override
 599     public List<String> listNumbers() {
 600         return Stream.concat(m.getIdentities().stream().map(Identity::getRecipient),
 601                 m.getContacts().stream().map(Pair::first))
 602                 .map(a -> a.getNumber().orElse(null))
 603                 .filter(Objects::nonNull)
 604                 .distinct()
 605                 .collect(Collectors.toList());
 606     }
 607
 608     @Override
 609     public List<String> getContactNumber(final String name) {
 610         // Contact names have precedence.
 611         var numbers = new ArrayList<String>();
 612         var contacts = m.getContacts();
 613         for (var c : contacts) {
 614             if (name.equals(c.second().getName())) {
 615                 numbers.add(c.first().getLegacyIdentifier());
 616             }
 617         }
 618         // Try profiles if no contact name was found
 619         for (var identity : m.getIdentities()) {
 620             final var address = identity.getRecipient();
 621             var number = address.getNumber().orElse(null);
 622             if (number != null) {
 623                 Profile profile = null;
 624                 try {
 625                     profile = m.getRecipientProfile(RecipientIdentifier.Single.fromAddress(address));
 626                 } catch (UnregisteredUserException ignored) {
 627                 }
 628                 if (profile != null && profile.getDisplayName().equals(name)) {
 629                     numbers.add(number);
 630                 }
 631             }
 632         }
 633         return numbers;
 634     }
 635
 636     @Override
 637     public void quitGroup(final byte[] groupId) {
 638         var group = getGroupId(groupId);
 639         try {
 640             m.quitGroup(group, Set.of());
 641         } catch (GroupNotFoundException | NotAGroupMemberException e) {
 642             throw new Error.GroupNotFound(e.getMessage());
 643         } catch (IOException | LastGroupAdminException e) {
 644             throw new Error.Failure(e.getMessage());
 645         }
 646     }
 647
 648     @Override
 649     public byte[] joinGroup(final String groupLink) {
 650         try {
 651             final var linkUrl = GroupInviteLinkUrl.fromUri(groupLink);
 652             if (linkUrl == null) {
 653                 throw new Error.Failure("Group link is invalid:");
 654             }
 655             final var result = m.joinGroup(linkUrl);
 656             return result.first().serialize();
 657         } catch (GroupInviteLinkUrl.InvalidGroupLinkException | GroupLinkNotActiveException e) {
 658             throw new Error.Failure("Group link is invalid: " + e.getMessage());
 659         } catch (GroupInviteLinkUrl.UnknownGroupLinkVersionException e) {
 660             throw new Error.Failure("Group link was created with an incompatible version: " + e.getMessage());
 661         } catch (IOException e) {
 662             throw new Error.Failure(e.getMessage());
 663         }
 664     }
 665
 666     @Override
 667     public boolean isContactBlocked(final String number) {
 668         return m.isContactBlocked(getSingleRecipientIdentifier(number, m.getSelfNumber()));
 669     }
 670
 671     @Override
 672     public boolean isGroupBlocked(final byte[] groupId) {
 673         var group = m.getGroup(getGroupId(groupId));
 674         if (group == null) {
 675             return false;
 676         } else {
 677             return group.isBlocked();
 678         }
 679     }
 680
 681     @Override
 682     public boolean isMember(final byte[] groupId) {
 683         var group = m.getGroup(getGroupId(groupId));
 684         if (group == null) {
 685             return false;
 686         } else {
 687             return group.isMember();
 688         }
 689     }
 690
 691     @Override
 692     public String uploadStickerPack(String stickerPackPath) {
 693         File path = new File(stickerPackPath);
 694         try {
 695             return m.uploadStickerPack(path).toString();
 696         } catch (IOException e) {
 697             throw new Error.Failure("Upload error (maybe image size is too large):" + e.getMessage());
 698         } catch (StickerPackInvalidException e) {
 699             throw new Error.Failure("Invalid sticker pack: " + e.getMessage());
 700         }
 701     }
 702
 703     private static void checkSendMessageResult(long timestamp, SendMessageResult result) throws DBusExecutionException {
 704         var error = ErrorUtils.getErrorMessageFromSendMessageResult(result);
 705
 706         if (error == null) {
 707             return;
 708         }
 709
 710         final var message = timestamp + "\nFailed to send message:\n" + error + '\n';
 711
 712         if (result.getIdentityFailure() != null) {
 713             throw new Error.UntrustedIdentity(message);
 714         } else {
 715             throw new Error.Failure(message);
 716         }
 717     }
 718
 719     private static void checkSendMessageResults(
 720             long timestamp, Map<RecipientIdentifier, List<SendMessageResult>> results
 721     ) throws DBusExecutionException {
 722         final var sendMessageResults = results.values().stream().findFirst();
 723         if (results.size() == 1 && sendMessageResults.get().size() == 1) {
 724             checkSendMessageResult(timestamp, sendMessageResults.get().stream().findFirst().get());
 725             return;
 726         }
 727
 728         var errors = ErrorUtils.getErrorMessagesFromSendMessageResults(results);
 729         if (errors.size() == 0) {
 730             return;
 731         }
 732
 733         var message = new StringBuilder();
 734         message.append(timestamp).append('\n');
 735         message.append("Failed to send (some) messages:\n");
 736         for (var error : errors) {
 737             message.append(error).append('\n');
 738         }
 739
 740         throw new Error.Failure(message.toString());
 741     }
 742
 743     private static void checkSendMessageResults(
 744             long timestamp, Collection<SendMessageResult> results
 745     ) throws DBusExecutionException {
 746         if (results.size() == 1) {
 747             checkSendMessageResult(timestamp, results.stream().findFirst().get());
 748             return;
 749         }
 750
 751         var errors = ErrorUtils.getErrorMessagesFromSendMessageResults(results);
 752         if (errors.size() == 0) {
 753             return;
 754         }
 755
 756         var message = new StringBuilder();
 757         message.append(timestamp).append('\n');
 758         message.append("Failed to send (some) messages:\n");
 759         for (var error : errors) {
 760             message.append(error).append('\n');
 761         }
 762
 763         throw new Error.Failure(message.toString());
 764     }
 765
 766     private static List<String> getRecipientStrings(final Set<RecipientAddress> members) {
 767         return members.stream().map(RecipientAddress::getLegacyIdentifier).collect(Collectors.toList());
 768     }
 769
 770     private static Set<RecipientIdentifier.Single> getSingleRecipientIdentifiers(
 771             final Collection<String> recipientStrings, final String localNumber
 772     ) throws DBusExecutionException {
 773         final var identifiers = new HashSet<RecipientIdentifier.Single>();
 774         for (var recipientString : recipientStrings) {
 775             identifiers.add(getSingleRecipientIdentifier(recipientString, localNumber));
 776         }
 777         return identifiers;
 778     }
 779
 780     private static RecipientIdentifier.Single getSingleRecipientIdentifier(
 781             final String recipientString, final String localNumber
 782     ) throws DBusExecutionException {
 783         try {
 784             return RecipientIdentifier.Single.fromString(recipientString, localNumber);
 785         } catch (InvalidNumberException e) {
 786             throw new Error.InvalidNumber(e.getMessage());
 787         }
 788     }
 789
 790     private static GroupId getGroupId(byte[] groupId) throws DBusExecutionException {
 791         try {
 792             return GroupId.unknownVersion(groupId);
 793         } catch (Throwable e) {
 794             throw new Error.InvalidGroupId("Invalid group id: " + e.getMessage());
 795         }
 796     }
 797
 798     private byte[] nullIfEmpty(final byte[] array) {
 799         return array.length == 0 ? null : array;
 800     }
 801
 802     private String nullIfEmpty(final String name) {
 803         return name.isEmpty() ? null : name;
 804     }
 805
 806     private String emptyIfNull(final String string) {
 807         return string == null ? "" : string;
 808     }
 809
 810     private static String getDeviceObjectPath(String basePath, long deviceId) {
 811         return basePath + "/Devices/" + deviceId;
 812     }
 813
 814     private void updateDevices() {
 815         List<org.asamk.signal.manager.api.Device> linkedDevices;
 816         try {
 817             linkedDevices = m.getLinkedDevices();
 818         } catch (IOException e) {
 819             throw new Error.Failure("Failed to get linked devices: " + e.getMessage());
 820         }
 821
 822         unExportDevices();
 823
 824         linkedDevices.forEach(d -> {
 825             final var object = new DbusSignalDeviceImpl(d);
 826             final var deviceObjectPath = object.getObjectPath();
 827             try {
 828                 connection.exportObject(object);
 829             } catch (DBusException e) {
 830                 e.printStackTrace();
 831             }
 832             if (d.isThisDevice()) {
 833                 thisDevice = new DBusPath(deviceObjectPath);
 834             }
 835             this.devices.add(new StructDevice(new DBusPath(deviceObjectPath), d.getId(), emptyIfNull(d.getName())));
 836         });
 837     }
 838
 839     private void unExportDevices() {
 840         this.devices.stream()
 841                 .map(StructDevice::getObjectPath)
 842                 .map(DBusPath::getPath)
 843                 .forEach(connection::unExportObject);
 844         this.devices.clear();
 845     }
 846
 847     private static String getGroupObjectPath(String basePath, byte[] groupId) {
 848         return basePath + "/Groups/" + Base64.getEncoder()
 849                 .encodeToString(groupId)
 850                 .replace("+", "_")
 851                 .replace("/", "_")
 852                 .replace("=", "_");
 853     }
 854
 855     private void updateGroups() {
 856         List<org.asamk.signal.manager.api.Group> groups;
 857         groups = m.getGroups();
 858
 859         unExportGroups();
 860
 861         groups.forEach(g -> {
 862             final var object = new DbusSignalGroupImpl(g.getGroupId());
 863             try {
 864                 connection.exportObject(object);
 865             } catch (DBusException e) {
 866                 e.printStackTrace();
 867             }
 868             this.groups.add(new StructGroup(new DBusPath(object.getObjectPath()),
 869                     g.getGroupId().serialize(),
 870                     emptyIfNull(g.getTitle())));
 871         });
 872     }
 873
 874     private void unExportGroups() {
 875         this.groups.stream().map(StructGroup::getObjectPath).map(DBusPath::getPath).forEach(connection::unExportObject);
 876         this.groups.clear();
 877     }
 878
 879     public class DbusSignalDeviceImpl extends DbusProperties implements Signal.Device {
 880
 881         private final org.asamk.signal.manager.api.Device device;
 882
 883         public DbusSignalDeviceImpl(final org.asamk.signal.manager.api.Device device) {
 884             super.addPropertiesHandler(new DbusInterfacePropertiesHandler("org.asamk.Signal.Device",
 885                     List.of(new DbusProperty<>("Id", device::getId),
 886                             new DbusProperty<>("Name", () -> emptyIfNull(device.getName()), this::setDeviceName),
 887                             new DbusProperty<>("Created", device::getCreated),
 888                             new DbusProperty<>("LastSeen", device::getLastSeen))));
 889             this.device = device;
 890         }
 891
 892         @Override
 893         public String getObjectPath() {
 894             return getDeviceObjectPath(objectPath, device.getId());
 895         }
 896
 897         @Override
 898         public void removeDevice() throws Error.Failure {
 899             try {
 900                 m.removeLinkedDevices(device.getId());
 901                 updateDevices();
 902             } catch (IOException e) {
 903                 throw new Error.Failure(e.getMessage());
 904             }
 905         }
 906
 907         private void setDeviceName(String name) {
 908             if (!device.isThisDevice()) {
 909                 throw new Error.Failure("Only the name of this device can be changed");
 910             }
 911             try {
 912                 m.updateAccountAttributes(name);
 913                 // update device list
 914                 updateDevices();
 915             } catch (IOException e) {
 916                 throw new Error.Failure(e.getMessage());
 917             }
 918         }
 919     }
 920
 921     public class DbusSignalGroupImpl extends DbusProperties implements Signal.Group {
 922
 923         private final GroupId groupId;
 924
 925         public DbusSignalGroupImpl(final GroupId groupId) {
 926             this.groupId = groupId;
 927             super.addPropertiesHandler(new DbusInterfacePropertiesHandler("org.asamk.Signal.Group",
 928                     List.of(new DbusProperty<>("Id", groupId::serialize),
 929                             new DbusProperty<>("Name", () -> emptyIfNull(getGroup().getTitle()), this::setGroupName),
 930                             new DbusProperty<>("Description",
 931                                     () -> emptyIfNull(getGroup().getDescription()),
 932                                     this::setGroupDescription),
 933                             new DbusProperty<>("Avatar", this::setGroupAvatar),
 934                             new DbusProperty<>("IsBlocked", () -> getGroup().isBlocked(), this::setIsBlocked),
 935                             new DbusProperty<>("IsMember", () -> getGroup().isMember()),
 936                             new DbusProperty<>("IsAdmin", () -> getGroup().isAdmin()),
 937                             new DbusProperty<>("MessageExpirationTimer",
 938                                     () -> getGroup().getMessageExpirationTimer(),
 939                                     this::setMessageExpirationTime),
 940                             new DbusProperty<>("Members",
 941                                     () -> new Variant<>(getRecipientStrings(getGroup().getMembers()), "as")),
 942                             new DbusProperty<>("PendingMembers",
 943                                     () -> new Variant<>(getRecipientStrings(getGroup().getPendingMembers()), "as")),
 944                             new DbusProperty<>("RequestingMembers",
 945                                     () -> new Variant<>(getRecipientStrings(getGroup().getRequestingMembers()), "as")),
 946                             new DbusProperty<>("Admins",
 947                                     () -> new Variant<>(getRecipientStrings(getGroup().getAdminMembers()), "as")),
 948                             new DbusProperty<>("PermissionAddMember",
 949                                     () -> getGroup().getPermissionAddMember().name(),
 950                                     this::setGroupPermissionAddMember),
 951                             new DbusProperty<>("PermissionEditDetails",
 952                                     () -> getGroup().getPermissionEditDetails().name(),
 953                                     this::setGroupPermissionEditDetails),
 954                             new DbusProperty<>("PermissionSendMessage",
 955                                     () -> getGroup().getPermissionSendMessage().name(),
 956                                     this::setGroupPermissionSendMessage),
 957                             new DbusProperty<>("GroupInviteLink", () -> {
 958                                 final var groupInviteLinkUrl = getGroup().getGroupInviteLinkUrl();
 959                                 return groupInviteLinkUrl == null ? "" : groupInviteLinkUrl.getUrl();
 960                             }))));
 961         }
 962
 963         @Override
 964         public String getObjectPath() {
 965             return getGroupObjectPath(objectPath, groupId.serialize());
 966         }
 967
 968         @Override
 969         public void quitGroup() throws Error.Failure {
 970             try {
 971                 m.quitGroup(groupId, Set.of());
 972             } catch (GroupNotFoundException | NotAGroupMemberException e) {
 973                 throw new Error.GroupNotFound(e.getMessage());
 974             } catch (IOException e) {
 975                 throw new Error.Failure(e.getMessage());
 976             } catch (LastGroupAdminException e) {
 977                 throw new Error.LastGroupAdmin(e.getMessage());
 978             }
 979         }
 980
 981         @Override
 982         public void addMembers(final List<String> recipients) throws Error.Failure {
 983             final var memberIdentifiers = getSingleRecipientIdentifiers(recipients, m.getSelfNumber());
 984             updateGroup(UpdateGroup.newBuilder().withMembers(memberIdentifiers).build());
 985         }
 986
 987         @Override
 988         public void removeMembers(final List<String> recipients) throws Error.Failure {
 989             final var memberIdentifiers = getSingleRecipientIdentifiers(recipients, m.getSelfNumber());
 990             updateGroup(UpdateGroup.newBuilder().withRemoveMembers(memberIdentifiers).build());
 991         }
 992
 993         @Override
 994         public void addAdmins(final List<String> recipients) throws Error.Failure {
 995             final var memberIdentifiers = getSingleRecipientIdentifiers(recipients, m.getSelfNumber());
 996             updateGroup(UpdateGroup.newBuilder().withAdmins(memberIdentifiers).build());
 997         }
 998
 999         @Override
1000         public void removeAdmins(final List<String> recipients) throws Error.Failure {
1001             final var memberIdentifiers = getSingleRecipientIdentifiers(recipients, m.getSelfNumber());
1002             updateGroup(UpdateGroup.newBuilder().withRemoveAdmins(memberIdentifiers).build());
1003         }
1004
1005         @Override
1006         public void resetLink() throws Error.Failure {
1007             updateGroup(UpdateGroup.newBuilder().withResetGroupLink(true).build());
1008         }
1009
1010         @Override
1011         public void disableLink() throws Error.Failure {
1012             updateGroup(UpdateGroup.newBuilder().withGroupLinkState(GroupLinkState.DISABLED).build());
1013         }
1014
1015         @Override
1016         public void enableLink(final boolean requiresApproval) throws Error.Failure {
1017             updateGroup(UpdateGroup.newBuilder()
1018                     .withGroupLinkState(requiresApproval
1019                             ? GroupLinkState.ENABLED_WITH_APPROVAL
1020                             : GroupLinkState.ENABLED)
1021                     .build());
1022         }
1023
1024         private org.asamk.signal.manager.api.Group getGroup() {
1025             return m.getGroup(groupId);
1026         }
1027
1028         private void setGroupName(final String name) {
1029             updateGroup(UpdateGroup.newBuilder().withName(name).build());
1030         }
1031
1032         private void setGroupDescription(final String description) {
1033             updateGroup(UpdateGroup.newBuilder().withDescription(description).build());
1034         }
1035
1036         private void setGroupAvatar(final String avatar) {
1037             updateGroup(UpdateGroup.newBuilder().withAvatarFile(new File(avatar)).build());
1038         }
1039
1040         private void setMessageExpirationTime(final int expirationTime) {
1041             updateGroup(UpdateGroup.newBuilder().withExpirationTimer(expirationTime).build());
1042         }
1043
1044         private void setGroupPermissionAddMember(final String permission) {
1045             updateGroup(UpdateGroup.newBuilder().withAddMemberPermission(GroupPermission.valueOf(permission)).build());
1046         }
1047
1048         private void setGroupPermissionEditDetails(final String permission) {
1049             updateGroup(UpdateGroup.newBuilder()
1050                     .withEditDetailsPermission(GroupPermission.valueOf(permission))
1051                     .build());
1052         }
1053
1054         private void setGroupPermissionSendMessage(final String permission) {
1055             updateGroup(UpdateGroup.newBuilder()
1056                     .withIsAnnouncementGroup(GroupPermission.valueOf(permission) == GroupPermission.ONLY_ADMINS)
1057                     .build());
1058         }
1059
1060         private void setIsBlocked(final boolean isBlocked) {
1061             try {
1062                 m.setGroupBlocked(groupId, isBlocked);
1063             } catch (GroupNotFoundException e) {
1064                 throw new Error.GroupNotFound(e.getMessage());
1065             } catch (IOException e) {
1066                 throw new Error.Failure(e.getMessage());
1067             }
1068         }
1069
1070         private void updateGroup(final UpdateGroup updateGroup) {
1071             try {
1072                 m.updateGroup(groupId, updateGroup);
1073             } catch (IOException e) {
1074                 throw new Error.Failure(e.getMessage());
1075             } catch (GroupNotFoundException | NotAGroupMemberException | GroupSendingNotAllowedException e) {
1076                 throw new Error.GroupNotFound(e.getMessage());
1077             } catch (AttachmentInvalidException e) {
1078                 throw new Error.AttachmentInvalid(e.getMessage());
1079             }
1080         }
1081     }
1082 }