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: {}) to {}",
  37                 source.map(this::formatContact).orElse("unknown source"),
  38                 envelope.sourceDevice(),
  39                 m.getSelfNumber());
  40         writer.println("Timestamp: {}", DateUtils.formatTimestamp(envelope.timestamp()));
  41         writer.println("Server timestamps: received: {} delivered: {}",
  42                 DateUtils.formatTimestamp(envelope.serverReceivedTimestamp()),
  43                 DateUtils.formatTimestamp(envelope.serverDeliveredTimestamp()));
  44         if (envelope.isUnidentifiedSender()) {
  45             writer.println("Sent by unidentified/sealed sender");
  46         }
  47
  48         if (exception != null) {
  49             if (exception instanceof UntrustedIdentityException e) {
  50                 writer.println(
  51                         "The user’s key is untrusted, either the user has reinstalled Signal or a third party sent this message.");
  52                 final var recipientName = e.getSender().getLegacyIdentifier();
  53                 writer.println(
  54                         "Use 'signal-cli -a {} listIdentities -n {}', verify the key and run 'signal-cli -a {} trust -v \"FINGER_PRINT\" {}' to mark it as trusted",
  55                         m.getSelfNumber(),
  56                         recipientName,
  57                         m.getSelfNumber(),
  58                         recipientName);
  59                 writer.println(
  60                         "If you don't care about security, use 'signal-cli -a {} trust -a {}' to trust it without verification",
  61                         m.getSelfNumber(),
  62                         recipientName);
  63             } else {
  64                 writer.println("Exception: {} ({})", exception.getMessage(), exception.getClass().getSimpleName());
  65             }
  66         }
  67
  68         if (envelope.data().isPresent()) {
  69             var message = envelope.data().get();
  70             printDataMessage(writer, message);
  71         }
  72         if (envelope.story().isPresent()) {
  73             var message = envelope.story().get();
  74             printStoryMessage(writer.indentedWriter(), message);
  75         }
  76         if (envelope.sync().isPresent()) {
  77             writer.println("Received a sync message");
  78             var syncMessage = envelope.sync().get();
  79             printSyncMessage(writer, syncMessage);
  80         }
  81         if (envelope.call().isPresent()) {
  82             writer.println("Received a call message");
  83             var callMessage = envelope.call().get();
  84             printCallMessage(writer.indentedWriter(), callMessage);
  85         }
  86         if (envelope.receipt().isPresent()) {
  87             writer.println("Received a receipt message");
  88             var receiptMessage = envelope.receipt().get();
  89             printReceiptMessage(writer.indentedWriter(), receiptMessage);
  90         }
  91         if (envelope.typing().isPresent()) {
  92             writer.println("Received a typing message");
  93             var typingMessage = envelope.typing().get();
  94             printTypingMessage(writer.indentedWriter(), typingMessage);
  95         }
  96         writer.println();
  97     }
  98
  99     private void printDataMessage(
 100             PlainTextWriter writer, MessageEnvelope.Data message
 101     ) {
 102         writer.println("Message timestamp: {}", DateUtils.formatTimestamp(message.timestamp()));
 103         if (message.isViewOnce()) {
 104             writer.println("=VIEW ONCE=");
 105         }
 106
 107         if (message.body().isPresent()) {
 108             writer.println("Body: {}", message.body().get());
 109         }
 110         if (message.groupContext().isPresent()) {
 111             writer.println("Group info:");
 112             final var groupContext = message.groupContext().get();
 113             printGroupContext(writer.indentedWriter(), groupContext);
 114         }
 115         if (message.storyContext().isPresent()) {
 116             writer.println("Story reply:");
 117             final var storyContext = message.storyContext().get();
 118             printStoryContext(writer.indentedWriter(), storyContext);
 119         }
 120         if (message.groupCallUpdate().isPresent()) {
 121             writer.println("Group call update:");
 122             final var groupCallUpdate = message.groupCallUpdate().get();
 123             writer.indentedWriter().println("Era id: {}", groupCallUpdate.eraId());
 124         }
 125         if (message.previews().size() > 0) {
 126             writer.println("Previews:");
 127             final var previews = message.previews();
 128             for (var preview : previews) {
 129                 writer.println("- Preview");
 130                 printPreview(writer.indentedWriter(), preview);
 131             }
 132         }
 133         if (message.sharedContacts().size() > 0) {
 134             writer.println("Contacts:");
 135             for (var contact : message.sharedContacts()) {
 136                 writer.println("- Contact:");
 137                 printSharedContact(writer.indentedWriter(), contact);
 138             }
 139         }
 140         if (message.sticker().isPresent()) {
 141             final var sticker = message.sticker().get();
 142             writer.println("Sticker:");
 143             printSticker(writer.indentedWriter(), sticker);
 144         }
 145         if (message.isEndSession()) {
 146             writer.println("Is end session");
 147         }
 148         if (message.isExpirationUpdate()) {
 149             writer.println("Is Expiration update: true");
 150         }
 151         if (message.expiresInSeconds() > 0) {
 152             writer.println("Expires in: {} seconds", message.expiresInSeconds());
 153         }
 154         if (message.isProfileKeyUpdate()) {
 155             writer.println("Profile key update");
 156         }
 157         if (message.hasProfileKey()) {
 158             writer.println("With profile key");
 159         }
 160         if (message.reaction().isPresent()) {
 161             writer.println("Reaction:");
 162             final var reaction = message.reaction().get();
 163             printReaction(writer.indentedWriter(), reaction);
 164         }
 165         if (message.quote().isPresent()) {
 166             writer.println("Quote:");
 167             var quote = message.quote().get();
 168             printQuote(writer.indentedWriter(), quote);
 169         }
 170         if (message.remoteDeleteId().isPresent()) {
 171             final var remoteDelete = message.remoteDeleteId().get();
 172             writer.println("Remote delete message: timestamp = {}", remoteDelete);
 173         }
 174         if (message.mentions().size() > 0) {
 175             writer.println("Mentions:");
 176             for (var mention : message.mentions()) {
 177                 printMention(writer, mention);
 178             }
 179         }
 180         if (message.attachments().size() > 0) {
 181             writer.println("Attachments:");
 182             for (var attachment : message.attachments()) {
 183                 writer.println("- Attachment:");
 184                 printAttachment(writer.indentedWriter(), attachment);
 185             }
 186         }
 187     }
 188
 189     private void printStoryMessage(
 190             PlainTextWriter writer, MessageEnvelope.Story message
 191     ) {
 192         writer.println("Story: with replies: {}", message.allowsReplies());
 193         if (message.groupId().isPresent()) {
 194             writer.println("Group info:");
 195             printGroupInfo(writer.indentedWriter(), message.groupId().get());
 196         }
 197         if (message.textAttachment().isPresent()) {
 198             writer.println("Body: {}", message.textAttachment().get().text().orElse(""));
 199
 200             if (message.textAttachment().get().preview().isPresent()) {
 201                 writer.println("Preview:");
 202                 printPreview(writer.indentedWriter(), message.textAttachment().get().preview().get());
 203             }
 204         }
 205         if (message.fileAttachment().isPresent()) {
 206             writer.println("Attachments:");
 207             printAttachment(writer.indentedWriter(), message.fileAttachment().get());
 208         }
 209     }
 210
 211     private void printTypingMessage(
 212             final PlainTextWriter writer, final MessageEnvelope.Typing typingMessage
 213     ) {
 214         writer.println("Action: {}", typingMessage.type());
 215         writer.println("Timestamp: {}", DateUtils.formatTimestamp(typingMessage.timestamp()));
 216         if (typingMessage.groupId().isPresent()) {
 217             writer.println("Group Info:");
 218             final var groupId = typingMessage.groupId().get();
 219             printGroupInfo(writer.indentedWriter(), groupId);
 220         }
 221     }
 222
 223     private void printReceiptMessage(
 224             final PlainTextWriter writer, final MessageEnvelope.Receipt receiptMessage
 225     ) {
 226         writer.println("When: {}", DateUtils.formatTimestamp(receiptMessage.when()));
 227         if (receiptMessage.type() == MessageEnvelope.Receipt.Type.DELIVERY) {
 228             writer.println("Is delivery receipt");
 229         }
 230         if (receiptMessage.type() == MessageEnvelope.Receipt.Type.READ) {
 231             writer.println("Is read receipt");
 232         }
 233         if (receiptMessage.type() == MessageEnvelope.Receipt.Type.VIEWED) {
 234             writer.println("Is viewed receipt");
 235         }
 236         writer.println("Timestamps:");
 237         for (long timestamp : receiptMessage.timestamps()) {
 238             writer.println("- {}", DateUtils.formatTimestamp(timestamp));
 239         }
 240     }
 241
 242     private void printCallMessage(
 243             final PlainTextWriter writer, final MessageEnvelope.Call callMessage
 244     ) {
 245         if (callMessage.destinationDeviceId().isPresent()) {
 246             final var deviceId = callMessage.destinationDeviceId().get();
 247             writer.println("Destination device id: {}", deviceId);
 248         }
 249         if (callMessage.groupId().isPresent()) {
 250             final var groupId = callMessage.groupId().get();
 251             writer.println("Destination group id: {}", groupId);
 252         }
 253         if (callMessage.timestamp().isPresent()) {
 254             writer.println("Timestamp: {}", DateUtils.formatTimestamp(callMessage.timestamp().get()));
 255         }
 256         if (callMessage.answer().isPresent()) {
 257             var answerMessage = callMessage.answer().get();
 258             writer.println("Answer message: {}, sdp: {})", answerMessage.id(), answerMessage.sdp());
 259         }
 260         if (callMessage.busy().isPresent()) {
 261             var busyMessage = callMessage.busy().get();
 262             writer.println("Busy message: {}", busyMessage.id());
 263         }
 264         if (callMessage.hangup().isPresent()) {
 265             var hangupMessage = callMessage.hangup().get();
 266             writer.println("Hangup message: {}", hangupMessage.id());
 267         }
 268         if (callMessage.iceUpdate().size() > 0) {
 269             writer.println("Ice update messages:");
 270             var iceUpdateMessages = callMessage.iceUpdate();
 271             for (var iceUpdateMessage : iceUpdateMessages) {
 272                 writer.println("- {}, sdp: {}", iceUpdateMessage.id(), iceUpdateMessage.sdp());
 273             }
 274         }
 275         if (callMessage.offer().isPresent()) {
 276             var offerMessage = callMessage.offer().get();
 277             writer.println("Offer message: {}, sdp: {}", offerMessage.id(), offerMessage.sdp());
 278         }
 279         if (callMessage.opaque().isPresent()) {
 280             final var opaqueMessage = callMessage.opaque().get();
 281             writer.println("Opaque message: size {}, urgency: {}",
 282                     opaqueMessage.opaque().length,
 283                     opaqueMessage.urgency().name());
 284         }
 285     }
 286
 287     private void printSyncMessage(
 288             final PlainTextWriter writer, final MessageEnvelope.Sync syncMessage
 289     ) {
 290         if (syncMessage.contacts().isPresent()) {
 291             final var contactsMessage = syncMessage.contacts().get();
 292             var type = contactsMessage.isComplete() ? "complete" : "partial";
 293             writer.println("Received {} sync contacts:", type);
 294         }
 295         if (syncMessage.groups().isPresent()) {
 296             writer.println("Received sync groups.");
 297         }
 298         if (syncMessage.read().size() > 0) {
 299             writer.println("Received sync read messages list");
 300             for (var rm : syncMessage.read()) {
 301                 writer.println("- From: {} Message timestamp: {}",
 302                         formatContact(rm.sender()),
 303                         DateUtils.formatTimestamp(rm.timestamp()));
 304             }
 305         }
 306         if (syncMessage.viewed().size() > 0) {
 307             writer.println("Received sync viewed messages list");
 308             for (var vm : syncMessage.viewed()) {
 309                 writer.println("- From: {} Message timestamp: {}",
 310                         formatContact(vm.sender()),
 311                         DateUtils.formatTimestamp(vm.timestamp()));
 312             }
 313         }
 314         if (syncMessage.sent().isPresent()) {
 315             writer.println("Received sync sent message");
 316             final var sentTranscriptMessage = syncMessage.sent().get();
 317             String to;
 318             if (sentTranscriptMessage.destination().isPresent()) {
 319                 to = formatContact(sentTranscriptMessage.destination().get());
 320             } else if (sentTranscriptMessage.recipients().size() > 0) {
 321                 to = sentTranscriptMessage.recipients()
 322                         .stream()
 323                         .map(this::formatContact)
 324                         .collect(Collectors.joining(", "));
 325             } else {
 326                 to = "<unknown>";
 327             }
 328             writer.indentedWriter().println("To: {}", to);
 329             writer.indentedWriter()
 330                     .println("Timestamp: {}", DateUtils.formatTimestamp(sentTranscriptMessage.timestamp()));
 331             if (sentTranscriptMessage.expirationStartTimestamp() > 0) {
 332                 writer.indentedWriter()
 333                         .println("Expiration started at: {}",
 334                                 DateUtils.formatTimestamp(sentTranscriptMessage.expirationStartTimestamp()));
 335             }
 336             if (sentTranscriptMessage.message().isPresent()) {
 337                 var message = sentTranscriptMessage.message().get();
 338                 printDataMessage(writer.indentedWriter(), message);
 339             }
 340             if (sentTranscriptMessage.story().isPresent()) {
 341                 var message = sentTranscriptMessage.story().get();
 342                 printStoryMessage(writer.indentedWriter(), message);
 343             }
 344         }
 345         if (syncMessage.blocked().isPresent()) {
 346             writer.println("Received sync message with block list");
 347             writer.println("Blocked:");
 348             final var blockedList = syncMessage.blocked().get();
 349             for (var address : blockedList.recipients()) {
 350                 writer.println("- {}", address.getLegacyIdentifier());
 351             }
 352             for (var groupId : blockedList.groupIds()) {
 353                 writer.println("- {}", groupId.toBase64());
 354             }
 355         }
 356         if (syncMessage.viewOnceOpen().isPresent()) {
 357             final var viewOnceOpenMessage = syncMessage.viewOnceOpen().get();
 358             writer.println("Received sync message with view once open message:");
 359             writer.indentedWriter().println("Sender: {}", formatContact(viewOnceOpenMessage.sender()));
 360             writer.indentedWriter()
 361                     .println("Timestamp: {}", DateUtils.formatTimestamp(viewOnceOpenMessage.timestamp()));
 362         }
 363         if (syncMessage.messageRequestResponse().isPresent()) {
 364             final var requestResponseMessage = syncMessage.messageRequestResponse().get();
 365             writer.println("Received message request response:");
 366             writer.indentedWriter().println("Type: {}", requestResponseMessage.type());
 367             if (requestResponseMessage.groupId().isPresent()) {
 368                 writer.println("For group:");
 369                 printGroupInfo(writer.indentedWriter(), requestResponseMessage.groupId().get());
 370             }
 371             if (requestResponseMessage.person().isPresent()) {
 372                 writer.indentedWriter().println("For Person: {}", formatContact(requestResponseMessage.person().get()));
 373             }
 374         }
 375     }
 376
 377     private void printPreview(
 378             final PlainTextWriter writer, final MessageEnvelope.Data.Preview preview
 379     ) {
 380         writer.println("Title: {}", preview.title());
 381         writer.println("Description: {}", preview.description());
 382         writer.println("Date: {}", DateUtils.formatTimestamp(preview.date()));
 383         writer.println("Url: {}", preview.url());
 384         if (preview.image().isPresent()) {
 385             writer.println("Image:");
 386             printAttachment(writer.indentedWriter(), preview.image().get());
 387         }
 388     }
 389
 390     private void printSticker(
 391             final PlainTextWriter writer, final MessageEnvelope.Data.Sticker sticker
 392     ) {
 393         writer.println("Pack id: {}", Hex.toStringCondensed(sticker.packId().serialize()));
 394         writer.println("Sticker id: {}", sticker.stickerId());
 395     }
 396
 397     private void printReaction(
 398             final PlainTextWriter writer, final MessageEnvelope.Data.Reaction reaction
 399     ) {
 400         writer.println("Emoji: {}", reaction.emoji());
 401         writer.println("Target author: {}", formatContact(reaction.targetAuthor()));
 402         writer.println("Target timestamp: {}", DateUtils.formatTimestamp(reaction.targetSentTimestamp()));
 403         writer.println("Is remove: {}", reaction.isRemove());
 404     }
 405
 406     private void printQuote(
 407             final PlainTextWriter writer, final MessageEnvelope.Data.Quote quote
 408     ) {
 409         writer.println("Id: {}", quote.id());
 410         writer.println("Author: {}", formatContact(quote.author()));
 411         if (quote.text().isPresent()) {
 412             writer.println("Text: {}", quote.text().get());
 413         }
 414         if (quote.mentions() != null && quote.mentions().size() > 0) {
 415             writer.println("Mentions:");
 416             for (var mention : quote.mentions()) {
 417                 printMention(writer, mention);
 418             }
 419         }
 420         if (quote.attachments().size() > 0) {
 421             writer.println("Attachments:");
 422             for (var attachment : quote.attachments()) {
 423                 writer.println("- Attachment:");
 424                 printAttachment(writer.indentedWriter(), attachment);
 425             }
 426         }
 427     }
 428
 429     private void printSharedContact(final PlainTextWriter writer, final MessageEnvelope.Data.SharedContact contact) {
 430         writer.println("Name:");
 431         var name = contact.name();
 432         writer.indent(w -> {
 433             if (name.display().isPresent() && !name.display().get().isBlank()) {
 434                 w.println("Display name: {}", name.display().get());
 435             }
 436             if (name.given().isPresent() && !name.given().get().isBlank()) {
 437                 w.println("First name: {}", name.given().get());
 438             }
 439             if (name.middle().isPresent() && !name.middle().get().isBlank()) {
 440                 w.println("Middle name: {}", name.middle().get());
 441             }
 442             if (name.family().isPresent() && !name.family().get().isBlank()) {
 443                 w.println("Family name: {}", name.family().get());
 444             }
 445             if (name.prefix().isPresent() && !name.prefix().get().isBlank()) {
 446                 w.println("Prefix name: {}", name.prefix().get());
 447             }
 448             if (name.suffix().isPresent() && !name.suffix().get().isBlank()) {
 449                 w.println("Suffix name: {}", name.suffix().get());
 450             }
 451         });
 452
 453         if (contact.avatar().isPresent()) {
 454             var avatar = contact.avatar().get();
 455             writer.println("Avatar: (profile: {})", avatar.isProfile());
 456             printAttachment(writer.indentedWriter(), avatar.attachment());
 457         }
 458
 459         if (contact.organization().isPresent()) {
 460             writer.println("Organisation: {}", contact.organization().get());
 461         }
 462
 463         if (contact.phone().size() > 0) {
 464             writer.println("Phone details:");
 465             for (var phone : contact.phone()) {
 466                 writer.println("- Phone:");
 467                 writer.indent(w -> {
 468                     w.println("Number: {}", phone.value());
 469                     w.println("Type: {}", phone.type());
 470                     if (phone.label().isPresent() && !phone.label().get().isBlank()) {
 471                         w.println("Label: {}", phone.label().get());
 472                     }
 473                 });
 474             }
 475         }
 476
 477         if (contact.email().size() > 0) {
 478             writer.println("Email details:");
 479             for (var email : contact.email()) {
 480                 writer.println("- Email:");
 481                 writer.indent(w -> {
 482                     w.println("Address: {}", email.value());
 483                     w.println("Type: {}", email.type());
 484                     if (email.label().isPresent() && !email.label().get().isBlank()) {
 485                         w.println("Label: {}", email.label().get());
 486                     }
 487                 });
 488             }
 489         }
 490
 491         if (contact.address().size() > 0) {
 492             writer.println("Address details:");
 493             for (var address : contact.address()) {
 494                 writer.println("- Address:");
 495                 writer.indent(w -> {
 496                     w.println("Type: {}", address.type());
 497                     if (address.label().isPresent() && !address.label().get().isBlank()) {
 498                         w.println("Label: {}", address.label().get());
 499                     }
 500                     if (address.street().isPresent() && !address.street().get().isBlank()) {
 501                         w.println("Street: {}", address.street().get());
 502                     }
 503                     if (address.pobox().isPresent() && !address.pobox().get().isBlank()) {
 504                         w.println("Pobox: {}", address.pobox().get());
 505                     }
 506                     if (address.neighborhood().isPresent() && !address.neighborhood().get().isBlank()) {
 507                         w.println("Neighbourhood: {}", address.neighborhood().get());
 508                     }
 509                     if (address.city().isPresent() && !address.city().get().isBlank()) {
 510                         w.println("City: {}", address.city().get());
 511                     }
 512                     if (address.region().isPresent() && !address.region().get().isBlank()) {
 513                         w.println("Region: {}", address.region().get());
 514                     }
 515                     if (address.postcode().isPresent() && !address.postcode().get().isBlank()) {
 516                         w.println("Postcode: {}", address.postcode().get());
 517                     }
 518                     if (address.country().isPresent() && !address.country().get().isBlank()) {
 519                         w.println("Country: {}", address.country().get());
 520                     }
 521                 });
 522             }
 523         }
 524     }
 525
 526     private void printGroupContext(
 527             final PlainTextWriter writer, final MessageEnvelope.Data.GroupContext groupContext
 528     ) {
 529         printGroupInfo(writer, groupContext.groupId());
 530         writer.println("Revision: {}", groupContext.revision());
 531         writer.println("Type: {}", groupContext.isGroupUpdate() ? "UPDATE" : "DELIVER");
 532     }
 533
 534     private void printStoryContext(
 535             final PlainTextWriter writer, final MessageEnvelope.Data.StoryContext storyContext
 536     ) {
 537         writer.println("Sender: {}", formatContact(storyContext.author()));
 538         writer.println("Sent timestamp: {}", storyContext.sentTimestamp());
 539     }
 540
 541     private void printGroupInfo(final PlainTextWriter writer, final GroupId groupId) {
 542         writer.println("Id: {}", groupId.toBase64());
 543
 544         var group = m.getGroup(groupId);
 545         if (group != null) {
 546             writer.println("Name: {}", group.title());
 547         } else {
 548             writer.println("Name: <Unknown group>");
 549         }
 550     }
 551
 552     private void printMention(
 553             PlainTextWriter writer, MessageEnvelope.Data.Mention mention
 554     ) {
 555         writer.println("- {}: {} (length: {})", formatContact(mention.recipient()), mention.start(), mention.length());
 556     }
 557
 558     private void printAttachment(PlainTextWriter writer, MessageEnvelope.Data.Attachment attachment) {
 559         writer.println("Content-Type: {}", attachment.contentType());
 560         writer.println("Type: {}", attachment.id().isPresent() ? "Pointer" : "Stream");
 561         if (attachment.id().isPresent()) {
 562             writer.println("Id: {}", attachment.id().get());
 563         }
 564         if (attachment.uploadTimestamp().isPresent()) {
 565             writer.println("Upload timestamp: {}", DateUtils.formatTimestamp(attachment.uploadTimestamp().get()));
 566         }
 567         if (attachment.caption().isPresent()) {
 568             writer.println("Caption: {}", attachment.caption().get());
 569         }
 570         if (attachment.fileName().isPresent()) {
 571             writer.println("Filename: {}", attachment.fileName().get());
 572         }
 573         if (attachment.size().isPresent() || attachment.preview().isPresent()) {
 574             writer.println("Size: {}{}",
 575                     attachment.size().isPresent() ? attachment.size().get() + " bytes" : "<unavailable>",
 576                     attachment.preview().isPresent() ? " (Preview is available: "
 577                             + attachment.preview().get().length
 578                             + " bytes)" : "");
 579         }
 580         if (attachment.thumbnail().isPresent()) {
 581             writer.println("Thumbnail:");
 582             printAttachment(writer.indentedWriter(), attachment.thumbnail().get());
 583         }
 584         final var flags = new ArrayList<String>();
 585         if (attachment.isVoiceNote()) {
 586             flags.add("voice note");
 587         }
 588         if (attachment.isBorderless()) {
 589             flags.add("borderless");
 590         }
 591         if (attachment.isGif()) {
 592             flags.add("video gif");
 593         }
 594         if (flags.size() > 0) {
 595             writer.println("Flags: {}", String.join(", ", flags));
 596         }
 597         if (attachment.width().isPresent() || attachment.height().isPresent()) {
 598             writer.println("Dimensions: {}x{}", attachment.width().orElse(0), attachment.height().orElse(0));
 599         }
 600         if (attachment.file().isPresent()) {
 601             var file = attachment.file().get();
 602             if (file.exists()) {
 603                 writer.println("Stored plaintext in: {}", file);
 604             }
 605         }
 606     }
 607
 608     private String formatContact(RecipientAddress address) {
 609         final var number = address.getLegacyIdentifier();
 610         final var name = m.getContactOrProfileName(RecipientIdentifier.Single.fromAddress(address));
 611         if (name == null || name.isEmpty()) {
 612             return number;
 613         } else {
 614             return MessageFormatter.arrayFormat("“{}” {}", new Object[]{name, number}).getMessage();
 615         }
 616     }
 617 }