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

   1 package org.asamk.signal;
   2
   3 import org.asamk.signal.manager.Manager;
   4 import org.asamk.signal.manager.api.MessageEnvelope;
   5 import org.asamk.signal.manager.api.RecipientAddress;
   6 import org.asamk.signal.manager.api.RecipientIdentifier;
   7 import org.asamk.signal.manager.api.UntrustedIdentityException;
   8 import org.asamk.signal.manager.groups.GroupId;
   9 import org.asamk.signal.output.PlainTextWriter;
  10 import org.asamk.signal.util.DateUtils;
  11 import org.asamk.signal.util.Hex;
  12 import org.slf4j.helpers.MessageFormatter;
  13
  14 import java.util.ArrayList;
  15 import java.util.stream.Collectors;
  16
  17 public class ReceiveMessageHandler implements Manager.ReceiveMessageHandler {
  18
  19     final Manager m;
  20     final PlainTextWriter writer;
  21
  22     public ReceiveMessageHandler(Manager m, final PlainTextWriter writer) {
  23         this.m = m;
  24         this.writer = writer;
  25     }
  26
  27     @Override
  28     public void handleMessage(MessageEnvelope envelope, Throwable exception) {
  29         synchronized (writer) {
  30             handleMessageInternal(envelope, exception);
  31         }
  32     }
  33
  34     private void handleMessageInternal(MessageEnvelope envelope, Throwable exception) {
  35         var source = envelope.sourceAddress();
  36         writer.println("Envelope from: {} (device: {})",
  37                 source.map(this::formatContact).orElse("unknown source"),
  38                 envelope.sourceDevice());
  39         writer.println("Timestamp: {}", DateUtils.formatTimestamp(envelope.timestamp()));
  40         writer.println("Server timestamps: received: {} delivered: {}",
  41                 DateUtils.formatTimestamp(envelope.serverReceivedTimestamp()),
  42                 DateUtils.formatTimestamp(envelope.serverDeliveredTimestamp()));
  43         if (envelope.isUnidentifiedSender()) {
  44             writer.println("Sent by unidentified/sealed sender");
  45         }
  46
  47         if (exception != null) {
  48             if (exception instanceof UntrustedIdentityException e) {
  49                 writer.println(
  50                         "The user’s key is untrusted, either the user has reinstalled Signal or a third party sent this message.");
  51                 final var recipientName = e.getSender().getLegacyIdentifier();
  52                 writer.println(
  53                         "Use 'signal-cli -a {} listIdentities -n {}', verify the key and run 'signal-cli -a {} trust -v \"FINGER_PRINT\" {}' to mark it as trusted",
  54                         m.getSelfNumber(),
  55                         recipientName,
  56                         m.getSelfNumber(),
  57                         recipientName);
  58                 writer.println(
  59                         "If you don't care about security, use 'signal-cli -a {} trust -a {}' to trust it without verification",
  60                         m.getSelfNumber(),
  61                         recipientName);
  62             } else {
  63                 writer.println("Exception: {} ({})", exception.getMessage(), exception.getClass().getSimpleName());
  64             }
  65         }
  66
  67         if (envelope.data().isPresent()) {
  68             var message = envelope.data().get();
  69             printDataMessage(writer, message);
  70         }
  71         if (envelope.story().isPresent()) {
  72             var message = envelope.story().get();
  73             printStoryMessage(writer.indentedWriter(), message);
  74         }
  75         if (envelope.sync().isPresent()) {
  76             writer.println("Received a sync message");
  77             var syncMessage = envelope.sync().get();
  78             printSyncMessage(writer, syncMessage);
  79         }
  80         if (envelope.call().isPresent()) {
  81             writer.println("Received a call message");
  82             var callMessage = envelope.call().get();
  83             printCallMessage(writer.indentedWriter(), callMessage);
  84         }
  85         if (envelope.receipt().isPresent()) {
  86             writer.println("Received a receipt message");
  87             var receiptMessage = envelope.receipt().get();
  88             printReceiptMessage(writer.indentedWriter(), receiptMessage);
  89         }
  90         if (envelope.typing().isPresent()) {
  91             writer.println("Received a typing message");
  92             var typingMessage = envelope.typing().get();
  93             printTypingMessage(writer.indentedWriter(), typingMessage);
  94         }
  95         writer.println();
  96     }
  97
  98     private void printDataMessage(
  99             PlainTextWriter writer, MessageEnvelope.Data message
 100     ) {
 101         writer.println("Message timestamp: {}", DateUtils.formatTimestamp(message.timestamp()));
 102         if (message.isViewOnce()) {
 103             writer.println("=VIEW ONCE=");
 104         }
 105
 106         if (message.body().isPresent()) {
 107             writer.println("Body: {}", message.body().get());
 108         }
 109         if (message.groupContext().isPresent()) {
 110             writer.println("Group info:");
 111             final var groupContext = message.groupContext().get();
 112             printGroupContext(writer.indentedWriter(), groupContext);
 113         }
 114         if (message.storyContext().isPresent()) {
 115             writer.println("Story reply:");
 116             final var storyContext = message.storyContext().get();
 117             printStoryContext(writer.indentedWriter(), storyContext);
 118         }
 119         if (message.groupCallUpdate().isPresent()) {
 120             writer.println("Group call update:");
 121             final var groupCallUpdate = message.groupCallUpdate().get();
 122             writer.indentedWriter().println("Era id: {}", groupCallUpdate.eraId());
 123         }
 124         if (message.previews().size() > 0) {
 125             writer.println("Previews:");
 126             final var previews = message.previews();
 127             for (var preview : previews) {
 128                 writer.println("- Preview");
 129                 printPreview(writer.indentedWriter(), preview);
 130             }
 131         }
 132         if (message.sharedContacts().size() > 0) {
 133             writer.println("Contacts:");
 134             for (var contact : message.sharedContacts()) {
 135                 writer.println("- Contact:");
 136                 printSharedContact(writer.indentedWriter(), contact);
 137             }
 138         }
 139         if (message.sticker().isPresent()) {
 140             final var sticker = message.sticker().get();
 141             writer.println("Sticker:");
 142             printSticker(writer.indentedWriter(), sticker);
 143         }
 144         if (message.isEndSession()) {
 145             writer.println("Is end session");
 146         }
 147         if (message.isExpirationUpdate()) {
 148             writer.println("Is Expiration update: true");
 149         }
 150         if (message.expiresInSeconds() > 0) {
 151             writer.println("Expires in: {} seconds", message.expiresInSeconds());
 152         }
 153         if (message.isProfileKeyUpdate()) {
 154             writer.println("Profile key update");
 155         }
 156         if (message.hasProfileKey()) {
 157             writer.println("With profile key");
 158         }
 159         if (message.reaction().isPresent()) {
 160             writer.println("Reaction:");
 161             final var reaction = message.reaction().get();
 162             printReaction(writer.indentedWriter(), reaction);
 163         }
 164         if (message.quote().isPresent()) {
 165             writer.println("Quote:");
 166             var quote = message.quote().get();
 167             printQuote(writer.indentedWriter(), quote);
 168         }
 169         if (message.remoteDeleteId().isPresent()) {
 170             final var remoteDelete = message.remoteDeleteId().get();
 171             writer.println("Remote delete message: timestamp = {}", remoteDelete);
 172         }
 173         if (message.mentions().size() > 0) {
 174             writer.println("Mentions:");
 175             for (var mention : message.mentions()) {
 176                 printMention(writer, mention);
 177             }
 178         }
 179         if (message.attachments().size() > 0) {
 180             writer.println("Attachments:");
 181             for (var attachment : message.attachments()) {
 182                 writer.println("- Attachment:");
 183                 printAttachment(writer.indentedWriter(), attachment);
 184             }
 185         }
 186     }
 187
 188     private void printStoryMessage(
 189             PlainTextWriter writer, MessageEnvelope.Story message
 190     ) {
 191         writer.println("Story: with replies: {}", message.allowsReplies());
 192         if (message.groupId().isPresent()) {
 193             writer.println("Group info:");
 194             printGroupInfo(writer.indentedWriter(), message.groupId().get());
 195         }
 196         if (message.textAttachment().isPresent()) {
 197             writer.println("Body: {}", message.textAttachment().get().text().orElse(""));
 198
 199             if (message.textAttachment().get().preview().isPresent()) {
 200                 writer.println("Preview:");
 201                 printPreview(writer.indentedWriter(), message.textAttachment().get().preview().get());
 202             }
 203         }
 204         if (message.fileAttachment().isPresent()) {
 205             writer.println("Attachments:");
 206             printAttachment(writer.indentedWriter(), message.fileAttachment().get());
 207         }
 208     }
 209
 210     private void printTypingMessage(
 211             final PlainTextWriter writer, final MessageEnvelope.Typing typingMessage
 212     ) {
 213         writer.println("Action: {}", typingMessage.type());
 214         writer.println("Timestamp: {}", DateUtils.formatTimestamp(typingMessage.timestamp()));
 215         if (typingMessage.groupId().isPresent()) {
 216             writer.println("Group Info:");
 217             final var groupId = typingMessage.groupId().get();
 218             printGroupInfo(writer.indentedWriter(), groupId);
 219         }
 220     }
 221
 222     private void printReceiptMessage(
 223             final PlainTextWriter writer, final MessageEnvelope.Receipt receiptMessage
 224     ) {
 225         writer.println("When: {}", DateUtils.formatTimestamp(receiptMessage.when()));
 226         if (receiptMessage.type() == MessageEnvelope.Receipt.Type.DELIVERY) {
 227             writer.println("Is delivery receipt");
 228         }
 229         if (receiptMessage.type() == MessageEnvelope.Receipt.Type.READ) {
 230             writer.println("Is read receipt");
 231         }
 232         if (receiptMessage.type() == MessageEnvelope.Receipt.Type.VIEWED) {
 233             writer.println("Is viewed receipt");
 234         }
 235         writer.println("Timestamps:");
 236         for (long timestamp : receiptMessage.timestamps()) {
 237             writer.println("- {}", DateUtils.formatTimestamp(timestamp));
 238         }
 239     }
 240
 241     private void printCallMessage(
 242             final PlainTextWriter writer, final MessageEnvelope.Call callMessage
 243     ) {
 244         if (callMessage.destinationDeviceId().isPresent()) {
 245             final var deviceId = callMessage.destinationDeviceId().get();
 246             writer.println("Destination device id: {}", deviceId);
 247         }
 248         if (callMessage.groupId().isPresent()) {
 249             final var groupId = callMessage.groupId().get();
 250             writer.println("Destination group id: {}", groupId);
 251         }
 252         if (callMessage.timestamp().isPresent()) {
 253             writer.println("Timestamp: {}", DateUtils.formatTimestamp(callMessage.timestamp().get()));
 254         }
 255         if (callMessage.answer().isPresent()) {
 256             var answerMessage = callMessage.answer().get();
 257             writer.println("Answer message: {}, sdp: {})", answerMessage.id(), answerMessage.sdp());
 258         }
 259         if (callMessage.busy().isPresent()) {
 260             var busyMessage = callMessage.busy().get();
 261             writer.println("Busy message: {}", busyMessage.id());
 262         }
 263         if (callMessage.hangup().isPresent()) {
 264             var hangupMessage = callMessage.hangup().get();
 265             writer.println("Hangup message: {}", hangupMessage.id());
 266         }
 267         if (callMessage.iceUpdate().size() > 0) {
 268             writer.println("Ice update messages:");
 269             var iceUpdateMessages = callMessage.iceUpdate();
 270             for (var iceUpdateMessage : iceUpdateMessages) {
 271                 writer.println("- {}, sdp: {}", iceUpdateMessage.id(), iceUpdateMessage.sdp());
 272             }
 273         }
 274         if (callMessage.offer().isPresent()) {
 275             var offerMessage = callMessage.offer().get();
 276             writer.println("Offer message: {}, sdp: {}", offerMessage.id(), offerMessage.sdp());
 277         }
 278         if (callMessage.opaque().isPresent()) {
 279             final var opaqueMessage = callMessage.opaque().get();
 280             writer.println("Opaque message: size {}, urgency: {}",
 281                     opaqueMessage.opaque().length,
 282                     opaqueMessage.urgency().name());
 283         }
 284     }
 285
 286     private void printSyncMessage(
 287             final PlainTextWriter writer, final MessageEnvelope.Sync syncMessage
 288     ) {
 289         if (syncMessage.contacts().isPresent()) {
 290             final var contactsMessage = syncMessage.contacts().get();
 291             var type = contactsMessage.isComplete() ? "complete" : "partial";
 292             writer.println("Received {} sync contacts:", type);
 293         }
 294         if (syncMessage.groups().isPresent()) {
 295             writer.println("Received sync groups.");
 296         }
 297         if (syncMessage.read().size() > 0) {
 298             writer.println("Received sync read messages list");
 299             for (var rm : syncMessage.read()) {
 300                 writer.println("- From: {} Message timestamp: {}",
 301                         formatContact(rm.sender()),
 302                         DateUtils.formatTimestamp(rm.timestamp()));
 303             }
 304         }
 305         if (syncMessage.viewed().size() > 0) {
 306             writer.println("Received sync viewed messages list");
 307             for (var vm : syncMessage.viewed()) {
 308                 writer.println("- From: {} Message timestamp: {}",
 309                         formatContact(vm.sender()),
 310                         DateUtils.formatTimestamp(vm.timestamp()));
 311             }
 312         }
 313         if (syncMessage.sent().isPresent()) {
 314             writer.println("Received sync sent message");
 315             final var sentTranscriptMessage = syncMessage.sent().get();
 316             String to;
 317             if (sentTranscriptMessage.destination().isPresent()) {
 318                 to = formatContact(sentTranscriptMessage.destination().get());
 319             } else if (sentTranscriptMessage.recipients().size() > 0) {
 320                 to = sentTranscriptMessage.recipients()
 321                         .stream()
 322                         .map(this::formatContact)
 323                         .collect(Collectors.joining(", "));
 324             } else {
 325                 to = "<unknown>";
 326             }
 327             writer.indentedWriter().println("To: {}", to);
 328             writer.indentedWriter()
 329                     .println("Timestamp: {}", DateUtils.formatTimestamp(sentTranscriptMessage.timestamp()));
 330             if (sentTranscriptMessage.expirationStartTimestamp() > 0) {
 331                 writer.indentedWriter()
 332                         .println("Expiration started at: {}",
 333                                 DateUtils.formatTimestamp(sentTranscriptMessage.expirationStartTimestamp()));
 334             }
 335             if (sentTranscriptMessage.message().isPresent()) {
 336                 var message = sentTranscriptMessage.message().get();
 337                 printDataMessage(writer.indentedWriter(), message);
 338             }
 339             if (sentTranscriptMessage.story().isPresent()) {
 340                 var message = sentTranscriptMessage.story().get();
 341                 printStoryMessage(writer.indentedWriter(), message);
 342             }
 343         }
 344         if (syncMessage.blocked().isPresent()) {
 345             writer.println("Received sync message with block list");
 346             writer.println("Blocked:");
 347             final var blockedList = syncMessage.blocked().get();
 348             for (var address : blockedList.recipients()) {
 349                 writer.println("- {}", address.getLegacyIdentifier());
 350             }
 351             for (var groupId : blockedList.groupIds()) {
 352                 writer.println("- {}", groupId.toBase64());
 353             }
 354         }
 355         if (syncMessage.viewOnceOpen().isPresent()) {
 356             final var viewOnceOpenMessage = syncMessage.viewOnceOpen().get();
 357             writer.println("Received sync message with view once open message:");
 358             writer.indentedWriter().println("Sender: {}", formatContact(viewOnceOpenMessage.sender()));
 359             writer.indentedWriter()
 360                     .println("Timestamp: {}", DateUtils.formatTimestamp(viewOnceOpenMessage.timestamp()));
 361         }
 362         if (syncMessage.messageRequestResponse().isPresent()) {
 363             final var requestResponseMessage = syncMessage.messageRequestResponse().get();
 364             writer.println("Received message request response:");
 365             writer.indentedWriter().println("Type: {}", requestResponseMessage.type());
 366             if (requestResponseMessage.groupId().isPresent()) {
 367                 writer.println("For group:");
 368                 printGroupInfo(writer.indentedWriter(), requestResponseMessage.groupId().get());
 369             }
 370             if (requestResponseMessage.person().isPresent()) {
 371                 writer.indentedWriter().println("For Person: {}", formatContact(requestResponseMessage.person().get()));
 372             }
 373         }
 374     }
 375
 376     private void printPreview(
 377             final PlainTextWriter writer, final MessageEnvelope.Data.Preview preview
 378     ) {
 379         writer.println("Title: {}", preview.title());
 380         writer.println("Description: {}", preview.description());
 381         writer.println("Date: {}", DateUtils.formatTimestamp(preview.date()));
 382         writer.println("Url: {}", preview.url());
 383         if (preview.image().isPresent()) {
 384             writer.println("Image:");
 385             printAttachment(writer.indentedWriter(), preview.image().get());
 386         }
 387     }
 388
 389     private void printSticker(
 390             final PlainTextWriter writer, final MessageEnvelope.Data.Sticker sticker
 391     ) {
 392         writer.println("Pack id: {}", Hex.toStringCondensed(sticker.packId().serialize()));
 393         writer.println("Sticker id: {}", sticker.stickerId());
 394     }
 395
 396     private void printReaction(
 397             final PlainTextWriter writer, final MessageEnvelope.Data.Reaction reaction
 398     ) {
 399         writer.println("Emoji: {}", reaction.emoji());
 400         writer.println("Target author: {}", formatContact(reaction.targetAuthor()));
 401         writer.println("Target timestamp: {}", DateUtils.formatTimestamp(reaction.targetSentTimestamp()));
 402         writer.println("Is remove: {}", reaction.isRemove());
 403     }
 404
 405     private void printQuote(
 406             final PlainTextWriter writer, final MessageEnvelope.Data.Quote quote
 407     ) {
 408         writer.println("Id: {}", quote.id());
 409         writer.println("Author: {}", formatContact(quote.author()));
 410         if (quote.text().isPresent()) {
 411             writer.println("Text: {}", quote.text().get());
 412         }
 413         if (quote.mentions() != null && quote.mentions().size() > 0) {
 414             writer.println("Mentions:");
 415             for (var mention : quote.mentions()) {
 416                 printMention(writer, mention);
 417             }
 418         }
 419         if (quote.attachments().size() > 0) {
 420             writer.println("Attachments:");
 421             for (var attachment : quote.attachments()) {
 422                 writer.println("- Attachment:");
 423                 printAttachment(writer.indentedWriter(), attachment);
 424             }
 425         }
 426     }
 427
 428     private void printSharedContact(final PlainTextWriter writer, final MessageEnvelope.Data.SharedContact contact) {
 429         writer.println("Name:");
 430         var name = contact.name();
 431         writer.indent(w -> {
 432             if (name.display().isPresent() && !name.display().get().isBlank()) {
 433                 w.println("Display name: {}", name.display().get());
 434             }
 435             if (name.given().isPresent() && !name.given().get().isBlank()) {
 436                 w.println("First name: {}", name.given().get());
 437             }
 438             if (name.middle().isPresent() && !name.middle().get().isBlank()) {
 439                 w.println("Middle name: {}", name.middle().get());
 440             }
 441             if (name.family().isPresent() && !name.family().get().isBlank()) {
 442                 w.println("Family name: {}", name.family().get());
 443             }
 444             if (name.prefix().isPresent() && !name.prefix().get().isBlank()) {
 445                 w.println("Prefix name: {}", name.prefix().get());
 446             }
 447             if (name.suffix().isPresent() && !name.suffix().get().isBlank()) {
 448                 w.println("Suffix name: {}", name.suffix().get());
 449             }
 450         });
 451
 452         if (contact.avatar().isPresent()) {
 453             var avatar = contact.avatar().get();
 454             writer.println("Avatar: (profile: {})", avatar.isProfile());
 455             printAttachment(writer.indentedWriter(), avatar.attachment());
 456         }
 457
 458         if (contact.organization().isPresent()) {
 459             writer.println("Organisation: {}", contact.organization().get());
 460         }
 461
 462         if (contact.phone().size() > 0) {
 463             writer.println("Phone details:");
 464             for (var phone : contact.phone()) {
 465                 writer.println("- Phone:");
 466                 writer.indent(w -> {
 467                     w.println("Number: {}", phone.value());
 468                     w.println("Type: {}", phone.type());
 469                     if (phone.label().isPresent() && !phone.label().get().isBlank()) {
 470                         w.println("Label: {}", phone.label().get());
 471                     }
 472                 });
 473             }
 474         }
 475
 476         if (contact.email().size() > 0) {
 477             writer.println("Email details:");
 478             for (var email : contact.email()) {
 479                 writer.println("- Email:");
 480                 writer.indent(w -> {
 481                     w.println("Address: {}", email.value());
 482                     w.println("Type: {}", email.type());
 483                     if (email.label().isPresent() && !email.label().get().isBlank()) {
 484                         w.println("Label: {}", email.label().get());
 485                     }
 486                 });
 487             }
 488         }
 489
 490         if (contact.address().size() > 0) {
 491             writer.println("Address details:");
 492             for (var address : contact.address()) {
 493                 writer.println("- Address:");
 494                 writer.indent(w -> {
 495                     w.println("Type: {}", address.type());
 496                     if (address.label().isPresent() && !address.label().get().isBlank()) {
 497                         w.println("Label: {}", address.label().get());
 498                     }
 499                     if (address.street().isPresent() && !address.street().get().isBlank()) {
 500                         w.println("Street: {}", address.street().get());
 501                     }
 502                     if (address.pobox().isPresent() && !address.pobox().get().isBlank()) {
 503                         w.println("Pobox: {}", address.pobox().get());
 504                     }
 505                     if (address.neighborhood().isPresent() && !address.neighborhood().get().isBlank()) {
 506                         w.println("Neighbourhood: {}", address.neighborhood().get());
 507                     }
 508                     if (address.city().isPresent() && !address.city().get().isBlank()) {
 509                         w.println("City: {}", address.city().get());
 510                     }
 511                     if (address.region().isPresent() && !address.region().get().isBlank()) {
 512                         w.println("Region: {}", address.region().get());
 513                     }
 514                     if (address.postcode().isPresent() && !address.postcode().get().isBlank()) {
 515                         w.println("Postcode: {}", address.postcode().get());
 516                     }
 517                     if (address.country().isPresent() && !address.country().get().isBlank()) {
 518                         w.println("Country: {}", address.country().get());
 519                     }
 520                 });
 521             }
 522         }
 523     }
 524
 525     private void printGroupContext(
 526             final PlainTextWriter writer, final MessageEnvelope.Data.GroupContext groupContext
 527     ) {
 528         printGroupInfo(writer, groupContext.groupId());
 529         writer.println("Revision: {}", groupContext.revision());
 530         writer.println("Type: {}", groupContext.isGroupUpdate() ? "UPDATE" : "DELIVER");
 531     }
 532
 533     private void printStoryContext(
 534             final PlainTextWriter writer, final MessageEnvelope.Data.StoryContext storyContext
 535     ) {
 536         writer.println("Sender: {}", formatContact(storyContext.author()));
 537         writer.println("Sent timestamp: {}", storyContext.sentTimestamp());
 538     }
 539
 540     private void printGroupInfo(final PlainTextWriter writer, final GroupId groupId) {
 541         writer.println("Id: {}", groupId.toBase64());
 542
 543         var group = m.getGroup(groupId);
 544         if (group != null) {
 545             writer.println("Name: {}", group.title());
 546         } else {
 547             writer.println("Name: <Unknown group>");
 548         }
 549     }
 550
 551     private void printMention(
 552             PlainTextWriter writer, MessageEnvelope.Data.Mention mention
 553     ) {
 554         writer.println("- {}: {} (length: {})", formatContact(mention.recipient()), mention.start(), mention.length());
 555     }
 556
 557     private void printAttachment(PlainTextWriter writer, MessageEnvelope.Data.Attachment attachment) {
 558         writer.println("Content-Type: {}", attachment.contentType());
 559         writer.println("Type: {}", attachment.id().isPresent() ? "Pointer" : "Stream");
 560         if (attachment.id().isPresent()) {
 561             writer.println("Id: {}", attachment.id().get());
 562         }
 563         if (attachment.uploadTimestamp().isPresent()) {
 564             writer.println("Upload timestamp: {}", DateUtils.formatTimestamp(attachment.uploadTimestamp().get()));
 565         }
 566         if (attachment.caption().isPresent()) {
 567             writer.println("Caption: {}", attachment.caption().get());
 568         }
 569         if (attachment.fileName().isPresent()) {
 570             writer.println("Filename: {}", attachment.fileName().get());
 571         }
 572         if (attachment.size().isPresent() || attachment.preview().isPresent()) {
 573             writer.println("Size: {}{}",
 574                     attachment.size().isPresent() ? attachment.size().get() + " bytes" : "<unavailable>",
 575                     attachment.preview().isPresent() ? " (Preview is available: "
 576                             + attachment.preview().get().length
 577                             + " bytes)" : "");
 578         }
 579         if (attachment.thumbnail().isPresent()) {
 580             writer.println("Thumbnail:");
 581             printAttachment(writer.indentedWriter(), attachment.thumbnail().get());
 582         }
 583         final var flags = new ArrayList<String>();
 584         if (attachment.isVoiceNote()) {
 585             flags.add("voice note");
 586         }
 587         if (attachment.isBorderless()) {
 588             flags.add("borderless");
 589         }
 590         if (attachment.isGif()) {
 591             flags.add("video gif");
 592         }
 593         if (flags.size() > 0) {
 594             writer.println("Flags: {}", String.join(", ", flags));
 595         }
 596         if (attachment.width().isPresent() || attachment.height().isPresent()) {
 597             writer.println("Dimensions: {}x{}", attachment.width().orElse(0), attachment.height().orElse(0));
 598         }
 599         if (attachment.file().isPresent()) {
 600             var file = attachment.file().get();
 601             if (file.exists()) {
 602                 writer.println("Stored plaintext in: {}", file);
 603             }
 604         }
 605     }
 606
 607     private String formatContact(RecipientAddress address) {
 608         final var number = address.getLegacyIdentifier();
 609         final var name = m.getContactOrProfileName(RecipientIdentifier.Single.fromAddress(address));
 610         if (name == null || name.isEmpty()) {
 611             return number;
 612         } else {
 613             return MessageFormatter.arrayFormat("“{}” {}", new Object[]{name, number}).getMessage();
 614         }
 615     }
 616 }