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.GroupId;
   5 import org.asamk.signal.manager.api.MessageEnvelope;
   6 import org.asamk.signal.manager.api.RecipientAddress;
   7 import org.asamk.signal.manager.api.RecipientIdentifier;
   8 import org.asamk.signal.manager.api.TextStyle;
   9 import org.asamk.signal.manager.api.UntrustedIdentityException;
  10 import org.asamk.signal.output.PlainTextWriter;
  11 import org.asamk.signal.util.DateUtils;
  12 import org.asamk.signal.util.Hex;
  13 import org.slf4j.helpers.MessageFormatter;
  14
  15 import java.util.ArrayList;
  16 import java.util.stream.Collectors;
  17
  18 public class ReceiveMessageHandler implements Manager.ReceiveMessageHandler {
  19
  20     final Manager m;
  21     final PlainTextWriter writer;
  22
  23     public ReceiveMessageHandler(Manager m, final PlainTextWriter writer) {
  24         this.m = m;
  25         this.writer = writer;
  26     }
  27
  28     @Override
  29     public void handleMessage(MessageEnvelope envelope, Throwable exception) {
  30         synchronized (writer) {
  31             handleMessageInternal(envelope, exception);
  32         }
  33     }
  34
  35     private void handleMessageInternal(MessageEnvelope envelope, Throwable exception) {
  36         var source = envelope.sourceAddress();
  37         writer.println("Envelope from: {} (device: {}) to {}",
  38                 source.map(this::formatContact).orElse("unknown source"),
  39                 envelope.sourceDevice(),
  40                 m.getSelfNumber());
  41         writer.println("Timestamp: {}", DateUtils.formatTimestamp(envelope.timestamp()));
  42         writer.println("Server timestamps: received: {} delivered: {}",
  43                 DateUtils.formatTimestamp(envelope.serverReceivedTimestamp()),
  44                 DateUtils.formatTimestamp(envelope.serverDeliveredTimestamp()));
  45         if (envelope.isUnidentifiedSender()) {
  46             writer.println("Sent by unidentified/sealed sender");
  47         }
  48
  49         if (exception != null) {
  50             if (exception instanceof UntrustedIdentityException e) {
  51                 writer.println(
  52                         "The user’s key is untrusted, either the user has reinstalled Signal or a third party sent this message.");
  53                 final var recipientName = e.getSender().getLegacyIdentifier();
  54                 writer.println(
  55                         "Use 'signal-cli -a {} listIdentities -n {}', verify the key and run 'signal-cli -a {} trust -v \"FINGER_PRINT\" {}' to mark it as trusted",
  56                         m.getSelfNumber(),
  57                         recipientName,
  58                         m.getSelfNumber(),
  59                         recipientName);
  60                 writer.println(
  61                         "If you don't care about security, use 'signal-cli -a {} trust -a {}' to trust it without verification",
  62                         m.getSelfNumber(),
  63                         recipientName);
  64             } else {
  65                 writer.println("Exception: {} ({})", exception.getMessage(), exception.getClass().getSimpleName());
  66             }
  67         }
  68
  69         if (envelope.data().isPresent()) {
  70             var message = envelope.data().get();
  71             printDataMessage(writer, message);
  72         }
  73         if (envelope.edit().isPresent()) {
  74             var message = envelope.edit().get();
  75             printEditMessage(writer, message);
  76         }
  77         if (envelope.story().isPresent()) {
  78             var message = envelope.story().get();
  79             printStoryMessage(writer.indentedWriter(), message);
  80         }
  81         if (envelope.sync().isPresent()) {
  82             writer.println("Received a sync message");
  83             var syncMessage = envelope.sync().get();
  84             printSyncMessage(writer, syncMessage);
  85         }
  86         if (envelope.call().isPresent()) {
  87             writer.println("Received a call message");
  88             var callMessage = envelope.call().get();
  89             printCallMessage(writer.indentedWriter(), callMessage);
  90         }
  91         if (envelope.receipt().isPresent()) {
  92             writer.println("Received a receipt message");
  93             var receiptMessage = envelope.receipt().get();
  94             printReceiptMessage(writer.indentedWriter(), receiptMessage);
  95         }
  96         if (envelope.typing().isPresent()) {
  97             writer.println("Received a typing message");
  98             var typingMessage = envelope.typing().get();
  99             printTypingMessage(writer.indentedWriter(), typingMessage);
 100         }
 101         writer.println();
 102     }
 103
 104     private void printDataMessage(
 105             PlainTextWriter writer, MessageEnvelope.Data message
 106     ) {
 107         writer.println("Message timestamp: {}", DateUtils.formatTimestamp(message.timestamp()));
 108         if (message.isViewOnce()) {
 109             writer.println("=VIEW ONCE=");
 110         }
 111
 112         if (message.body().isPresent()) {
 113             writer.println("Body: {}", message.body().get());
 114         }
 115         if (message.groupContext().isPresent()) {
 116             writer.println("Group info:");
 117             final var groupContext = message.groupContext().get();
 118             printGroupContext(writer.indentedWriter(), groupContext);
 119         }
 120         if (message.storyContext().isPresent()) {
 121             writer.println("Story reply:");
 122             final var storyContext = message.storyContext().get();
 123             printStoryContext(writer.indentedWriter(), storyContext);
 124         }
 125         if (message.groupCallUpdate().isPresent()) {
 126             writer.println("Group call update:");
 127             final var groupCallUpdate = message.groupCallUpdate().get();
 128             writer.indentedWriter().println("Era id: {}", groupCallUpdate.eraId());
 129         }
 130         if (!message.previews().isEmpty()) {
 131             writer.println("Previews:");
 132             final var previews = message.previews();
 133             for (var preview : previews) {
 134                 writer.println("- Preview");
 135                 printPreview(writer.indentedWriter(), preview);
 136             }
 137         }
 138         if (!message.sharedContacts().isEmpty()) {
 139             writer.println("Contacts:");
 140             for (var contact : message.sharedContacts()) {
 141                 writer.println("- Contact:");
 142                 printSharedContact(writer.indentedWriter(), contact);
 143             }
 144         }
 145         if (message.sticker().isPresent()) {
 146             final var sticker = message.sticker().get();
 147             writer.println("Sticker:");
 148             printSticker(writer.indentedWriter(), sticker);
 149         }
 150         if (message.isEndSession()) {
 151             writer.println("Is end session");
 152         }
 153         if (message.isExpirationUpdate()) {
 154             writer.println("Is Expiration update: true");
 155         }
 156         if (message.expiresInSeconds() > 0) {
 157             writer.println("Expires in: {} seconds", message.expiresInSeconds());
 158         }
 159         if (message.isProfileKeyUpdate()) {
 160             writer.println("Profile key update");
 161         }
 162         if (message.hasProfileKey()) {
 163             writer.println("With profile key");
 164         }
 165         if (message.reaction().isPresent()) {
 166             writer.println("Reaction:");
 167             final var reaction = message.reaction().get();
 168             printReaction(writer.indentedWriter(), reaction);
 169         }
 170         if (message.quote().isPresent()) {
 171             writer.println("Quote:");
 172             var quote = message.quote().get();
 173             printQuote(writer.indentedWriter(), quote);
 174         }
 175         if (message.remoteDeleteId().isPresent()) {
 176             final var remoteDelete = message.remoteDeleteId().get();
 177             writer.println("Remote delete message: timestamp = {}", remoteDelete);
 178         }
 179         if (!message.mentions().isEmpty()) {
 180             writer.println("Mentions:");
 181             for (var mention : message.mentions()) {
 182                 printMention(writer, mention);
 183             }
 184         }
 185         if (!message.textStyles().isEmpty()) {
 186             writer.println("Text styles:");
 187             for (var textStyle : message.textStyles()) {
 188                 printTextStyle(writer, textStyle);
 189             }
 190         }
 191         if (!message.attachments().isEmpty()) {
 192             writer.println("Attachments:");
 193             for (var attachment : message.attachments()) {
 194                 writer.println("- Attachment:");
 195                 printAttachment(writer.indentedWriter(), attachment);
 196             }
 197         }
 198     }
 199
 200     private void printEditMessage(
 201             PlainTextWriter writer, MessageEnvelope.Edit message
 202     ) {
 203         writer.println("Edit: Target message timestamp: {}", DateUtils.formatTimestamp(message.targetSentTimestamp()));
 204         printDataMessage(writer.indentedWriter(), message.dataMessage());
 205     }
 206
 207     private void printStoryMessage(
 208             PlainTextWriter writer, MessageEnvelope.Story message
 209     ) {
 210         writer.println("Story: with replies: {}", message.allowsReplies());
 211         if (message.groupId().isPresent()) {
 212             writer.println("Group info:");
 213             printGroupInfo(writer.indentedWriter(), message.groupId().get());
 214         }
 215         if (message.textAttachment().isPresent()) {
 216             writer.println("Body: {}", message.textAttachment().get().text().orElse(""));
 217
 218             if (message.textAttachment().get().preview().isPresent()) {
 219                 writer.println("Preview:");
 220                 printPreview(writer.indentedWriter(), message.textAttachment().get().preview().get());
 221             }
 222         }
 223         if (message.fileAttachment().isPresent()) {
 224             writer.println("Attachments:");
 225             printAttachment(writer.indentedWriter(), message.fileAttachment().get());
 226         }
 227     }
 228
 229     private void printTypingMessage(
 230             final PlainTextWriter writer, final MessageEnvelope.Typing typingMessage
 231     ) {
 232         writer.println("Action: {}", typingMessage.type());
 233         writer.println("Timestamp: {}", DateUtils.formatTimestamp(typingMessage.timestamp()));
 234         if (typingMessage.groupId().isPresent()) {
 235             writer.println("Group Info:");
 236             final var groupId = typingMessage.groupId().get();
 237             printGroupInfo(writer.indentedWriter(), groupId);
 238         }
 239     }
 240
 241     private void printReceiptMessage(
 242             final PlainTextWriter writer, final MessageEnvelope.Receipt receiptMessage
 243     ) {
 244         writer.println("When: {}", DateUtils.formatTimestamp(receiptMessage.when()));
 245         if (receiptMessage.type() == MessageEnvelope.Receipt.Type.DELIVERY) {
 246             writer.println("Is delivery receipt");
 247         }
 248         if (receiptMessage.type() == MessageEnvelope.Receipt.Type.READ) {
 249             writer.println("Is read receipt");
 250         }
 251         if (receiptMessage.type() == MessageEnvelope.Receipt.Type.VIEWED) {
 252             writer.println("Is viewed receipt");
 253         }
 254         writer.println("Timestamps:");
 255         for (long timestamp : receiptMessage.timestamps()) {
 256             writer.println("- {}", DateUtils.formatTimestamp(timestamp));
 257         }
 258     }
 259
 260     private void printCallMessage(
 261             final PlainTextWriter writer, final MessageEnvelope.Call callMessage
 262     ) {
 263         if (callMessage.destinationDeviceId().isPresent()) {
 264             final var deviceId = callMessage.destinationDeviceId().get();
 265             writer.println("Destination device id: {}", deviceId);
 266         }
 267         if (callMessage.groupId().isPresent()) {
 268             final var groupId = callMessage.groupId().get();
 269             writer.println("Destination group id: {}", groupId);
 270         }
 271         if (callMessage.timestamp().isPresent()) {
 272             writer.println("Timestamp: {}", DateUtils.formatTimestamp(callMessage.timestamp().get()));
 273         }
 274         if (callMessage.answer().isPresent()) {
 275             var answerMessage = callMessage.answer().get();
 276             writer.println("Answer message: {}, opaque length: {})", answerMessage.id(), answerMessage.opaque().length);
 277         }
 278         if (callMessage.busy().isPresent()) {
 279             var busyMessage = callMessage.busy().get();
 280             writer.println("Busy message: {}", busyMessage.id());
 281         }
 282         if (callMessage.hangup().isPresent()) {
 283             var hangupMessage = callMessage.hangup().get();
 284             writer.println("Hangup message: {}", hangupMessage.id());
 285         }
 286         if (!callMessage.iceUpdate().isEmpty()) {
 287             writer.println("Ice update messages:");
 288             var iceUpdateMessages = callMessage.iceUpdate();
 289             for (var iceUpdateMessage : iceUpdateMessages) {
 290                 writer.println("- {}, opaque length: {}", iceUpdateMessage.id(), iceUpdateMessage.opaque().length);
 291             }
 292         }
 293         if (callMessage.offer().isPresent()) {
 294             var offerMessage = callMessage.offer().get();
 295             writer.println("Offer message: {}, opaque length: {}", offerMessage.id(), offerMessage.opaque().length);
 296         }
 297         if (callMessage.opaque().isPresent()) {
 298             final var opaqueMessage = callMessage.opaque().get();
 299             writer.println("Opaque message: size {}, urgency: {}",
 300                     opaqueMessage.opaque().length,
 301                     opaqueMessage.urgency().name());
 302         }
 303     }
 304
 305     private void printSyncMessage(
 306             final PlainTextWriter writer, final MessageEnvelope.Sync syncMessage
 307     ) {
 308         if (syncMessage.contacts().isPresent()) {
 309             final var contactsMessage = syncMessage.contacts().get();
 310             var type = contactsMessage.isComplete() ? "complete" : "partial";
 311             writer.println("Received {} sync contacts:", type);
 312         }
 313         if (syncMessage.groups().isPresent()) {
 314             writer.println("Received sync groups.");
 315         }
 316         if (!syncMessage.read().isEmpty()) {
 317             writer.println("Received sync read messages list");
 318             for (var rm : syncMessage.read()) {
 319                 writer.println("- From: {} Message timestamp: {}",
 320                         formatContact(rm.sender()),
 321                         DateUtils.formatTimestamp(rm.timestamp()));
 322             }
 323         }
 324         if (!syncMessage.viewed().isEmpty()) {
 325             writer.println("Received sync viewed messages list");
 326             for (var vm : syncMessage.viewed()) {
 327                 writer.println("- From: {} Message timestamp: {}",
 328                         formatContact(vm.sender()),
 329                         DateUtils.formatTimestamp(vm.timestamp()));
 330             }
 331         }
 332         if (syncMessage.sent().isPresent()) {
 333             writer.println("Received sync sent message");
 334             final var sentTranscriptMessage = syncMessage.sent().get();
 335             String to;
 336             if (sentTranscriptMessage.destination().isPresent()) {
 337                 to = formatContact(sentTranscriptMessage.destination().get());
 338             } else if (!sentTranscriptMessage.recipients().isEmpty()) {
 339                 to = sentTranscriptMessage.recipients()
 340                         .stream()
 341                         .map(this::formatContact)
 342                         .collect(Collectors.joining(", "));
 343             } else {
 344                 to = "<unknown>";
 345             }
 346             writer.indentedWriter().println("To: {}", to);
 347             writer.indentedWriter()
 348                     .println("Timestamp: {}", DateUtils.formatTimestamp(sentTranscriptMessage.timestamp()));
 349             if (sentTranscriptMessage.expirationStartTimestamp() > 0) {
 350                 writer.indentedWriter()
 351                         .println("Expiration started at: {}",
 352                                 DateUtils.formatTimestamp(sentTranscriptMessage.expirationStartTimestamp()));
 353             }
 354             if (sentTranscriptMessage.message().isPresent()) {
 355                 var message = sentTranscriptMessage.message().get();
 356                 printDataMessage(writer.indentedWriter(), message);
 357             }
 358             if (sentTranscriptMessage.story().isPresent()) {
 359                 var message = sentTranscriptMessage.story().get();
 360                 printStoryMessage(writer.indentedWriter(), message);
 361             }
 362         }
 363         if (syncMessage.blocked().isPresent()) {
 364             writer.println("Received sync message with block list");
 365             writer.println("Blocked:");
 366             final var blockedList = syncMessage.blocked().get();
 367             for (var address : blockedList.recipients()) {
 368                 writer.println("- {}", address.getLegacyIdentifier());
 369             }
 370             for (var groupId : blockedList.groupIds()) {
 371                 writer.println("- {}", groupId.toBase64());
 372             }
 373         }
 374         if (syncMessage.viewOnceOpen().isPresent()) {
 375             final var viewOnceOpenMessage = syncMessage.viewOnceOpen().get();
 376             writer.println("Received sync message with view once open message:");
 377             writer.indentedWriter().println("Sender: {}", formatContact(viewOnceOpenMessage.sender()));
 378             writer.indentedWriter()
 379                     .println("Timestamp: {}", DateUtils.formatTimestamp(viewOnceOpenMessage.timestamp()));
 380         }
 381         if (syncMessage.messageRequestResponse().isPresent()) {
 382             final var requestResponseMessage = syncMessage.messageRequestResponse().get();
 383             writer.println("Received message request response:");
 384             writer.indentedWriter().println("Type: {}", requestResponseMessage.type());
 385             if (requestResponseMessage.groupId().isPresent()) {
 386                 writer.println("For group:");
 387                 printGroupInfo(writer.indentedWriter(), requestResponseMessage.groupId().get());
 388             }
 389             if (requestResponseMessage.person().isPresent()) {
 390                 writer.indentedWriter().println("For Person: {}", formatContact(requestResponseMessage.person().get()));
 391             }
 392         }
 393     }
 394
 395     private void printPreview(
 396             final PlainTextWriter writer, final MessageEnvelope.Data.Preview preview
 397     ) {
 398         writer.println("Title: {}", preview.title());
 399         writer.println("Description: {}", preview.description());
 400         writer.println("Date: {}", DateUtils.formatTimestamp(preview.date()));
 401         writer.println("Url: {}", preview.url());
 402         if (preview.image().isPresent()) {
 403             writer.println("Image:");
 404             printAttachment(writer.indentedWriter(), preview.image().get());
 405         }
 406     }
 407
 408     private void printSticker(
 409             final PlainTextWriter writer, final MessageEnvelope.Data.Sticker sticker
 410     ) {
 411         writer.println("Pack id: {}", Hex.toStringCondensed(sticker.packId().serialize()));
 412         writer.println("Sticker id: {}", sticker.stickerId());
 413     }
 414
 415     private void printReaction(
 416             final PlainTextWriter writer, final MessageEnvelope.Data.Reaction reaction
 417     ) {
 418         writer.println("Emoji: {}", reaction.emoji());
 419         writer.println("Target author: {}", formatContact(reaction.targetAuthor()));
 420         writer.println("Target timestamp: {}", DateUtils.formatTimestamp(reaction.targetSentTimestamp()));
 421         writer.println("Is remove: {}", reaction.isRemove());
 422     }
 423
 424     private void printQuote(
 425             final PlainTextWriter writer, final MessageEnvelope.Data.Quote quote
 426     ) {
 427         writer.println("Id: {}", quote.id());
 428         writer.println("Author: {}", formatContact(quote.author()));
 429         if (quote.text().isPresent()) {
 430             writer.println("Text: {}", quote.text().get());
 431         }
 432         if (quote.mentions() != null && !quote.mentions().isEmpty()) {
 433             writer.println("Mentions:");
 434             for (var mention : quote.mentions()) {
 435                 printMention(writer, mention);
 436             }
 437         }
 438         if (!quote.attachments().isEmpty()) {
 439             writer.println("Attachments:");
 440             for (var attachment : quote.attachments()) {
 441                 writer.println("- Attachment:");
 442                 printAttachment(writer.indentedWriter(), attachment);
 443             }
 444         }
 445     }
 446
 447     private void printSharedContact(final PlainTextWriter writer, final MessageEnvelope.Data.SharedContact contact) {
 448         writer.println("Name:");
 449         var name = contact.name();
 450         writer.indent(w -> {
 451             if (name.display().isPresent() && !name.display().get().isBlank()) {
 452                 w.println("Display name: {}", name.display().get());
 453             }
 454             if (name.given().isPresent() && !name.given().get().isBlank()) {
 455                 w.println("First name: {}", name.given().get());
 456             }
 457             if (name.middle().isPresent() && !name.middle().get().isBlank()) {
 458                 w.println("Middle name: {}", name.middle().get());
 459             }
 460             if (name.family().isPresent() && !name.family().get().isBlank()) {
 461                 w.println("Family name: {}", name.family().get());
 462             }
 463             if (name.prefix().isPresent() && !name.prefix().get().isBlank()) {
 464                 w.println("Prefix name: {}", name.prefix().get());
 465             }
 466             if (name.suffix().isPresent() && !name.suffix().get().isBlank()) {
 467                 w.println("Suffix name: {}", name.suffix().get());
 468             }
 469         });
 470
 471         if (contact.avatar().isPresent()) {
 472             var avatar = contact.avatar().get();
 473             writer.println("Avatar: (profile: {})", avatar.isProfile());
 474             printAttachment(writer.indentedWriter(), avatar.attachment());
 475         }
 476
 477         if (contact.organization().isPresent()) {
 478             writer.println("Organisation: {}", contact.organization().get());
 479         }
 480
 481         if (!contact.phone().isEmpty()) {
 482             writer.println("Phone details:");
 483             for (var phone : contact.phone()) {
 484                 writer.println("- Phone:");
 485                 writer.indent(w -> {
 486                     w.println("Number: {}", phone.value());
 487                     w.println("Type: {}", phone.type());
 488                     if (phone.label().isPresent() && !phone.label().get().isBlank()) {
 489                         w.println("Label: {}", phone.label().get());
 490                     }
 491                 });
 492             }
 493         }
 494
 495         if (!contact.email().isEmpty()) {
 496             writer.println("Email details:");
 497             for (var email : contact.email()) {
 498                 writer.println("- Email:");
 499                 writer.indent(w -> {
 500                     w.println("Address: {}", email.value());
 501                     w.println("Type: {}", email.type());
 502                     if (email.label().isPresent() && !email.label().get().isBlank()) {
 503                         w.println("Label: {}", email.label().get());
 504                     }
 505                 });
 506             }
 507         }
 508
 509         if (!contact.address().isEmpty()) {
 510             writer.println("Address details:");
 511             for (var address : contact.address()) {
 512                 writer.println("- Address:");
 513                 writer.indent(w -> {
 514                     w.println("Type: {}", address.type());
 515                     if (address.label().isPresent() && !address.label().get().isBlank()) {
 516                         w.println("Label: {}", address.label().get());
 517                     }
 518                     if (address.street().isPresent() && !address.street().get().isBlank()) {
 519                         w.println("Street: {}", address.street().get());
 520                     }
 521                     if (address.pobox().isPresent() && !address.pobox().get().isBlank()) {
 522                         w.println("Pobox: {}", address.pobox().get());
 523                     }
 524                     if (address.neighborhood().isPresent() && !address.neighborhood().get().isBlank()) {
 525                         w.println("Neighbourhood: {}", address.neighborhood().get());
 526                     }
 527                     if (address.city().isPresent() && !address.city().get().isBlank()) {
 528                         w.println("City: {}", address.city().get());
 529                     }
 530                     if (address.region().isPresent() && !address.region().get().isBlank()) {
 531                         w.println("Region: {}", address.region().get());
 532                     }
 533                     if (address.postcode().isPresent() && !address.postcode().get().isBlank()) {
 534                         w.println("Postcode: {}", address.postcode().get());
 535                     }
 536                     if (address.country().isPresent() && !address.country().get().isBlank()) {
 537                         w.println("Country: {}", address.country().get());
 538                     }
 539                 });
 540             }
 541         }
 542     }
 543
 544     private void printGroupContext(
 545             final PlainTextWriter writer, final MessageEnvelope.Data.GroupContext groupContext
 546     ) {
 547         printGroupInfo(writer, groupContext.groupId());
 548         writer.println("Revision: {}", groupContext.revision());
 549         writer.println("Type: {}", groupContext.isGroupUpdate() ? "UPDATE" : "DELIVER");
 550     }
 551
 552     private void printStoryContext(
 553             final PlainTextWriter writer, final MessageEnvelope.Data.StoryContext storyContext
 554     ) {
 555         writer.println("Sender: {}", formatContact(storyContext.author()));
 556         writer.println("Sent timestamp: {}", storyContext.sentTimestamp());
 557     }
 558
 559     private void printGroupInfo(final PlainTextWriter writer, final GroupId groupId) {
 560         writer.println("Id: {}", groupId.toBase64());
 561
 562         var group = m.getGroup(groupId);
 563         if (group != null) {
 564             writer.println("Name: {}", group.title());
 565         } else {
 566             writer.println("Name: <Unknown group>");
 567         }
 568     }
 569
 570     private void printMention(
 571             PlainTextWriter writer, MessageEnvelope.Data.Mention mention
 572     ) {
 573         writer.println("- {}: {} (length: {})", formatContact(mention.recipient()), mention.start(), mention.length());
 574     }
 575
 576     private void printTextStyle(
 577             PlainTextWriter writer, TextStyle textStyle
 578     ) {
 579         writer.println("- {}: {} (length: {})", textStyle.style().name(), textStyle.start(), textStyle.length());
 580     }
 581
 582     private void printAttachment(PlainTextWriter writer, MessageEnvelope.Data.Attachment attachment) {
 583         writer.println("Content-Type: {}", attachment.contentType());
 584         writer.println("Type: {}", attachment.id().isPresent() ? "Pointer" : "Stream");
 585         if (attachment.id().isPresent()) {
 586             writer.println("Id: {}", attachment.id().get());
 587         }
 588         if (attachment.uploadTimestamp().isPresent()) {
 589             writer.println("Upload timestamp: {}", DateUtils.formatTimestamp(attachment.uploadTimestamp().get()));
 590         }
 591         if (attachment.caption().isPresent()) {
 592             writer.println("Caption: {}", attachment.caption().get());
 593         }
 594         if (attachment.fileName().isPresent()) {
 595             writer.println("Filename: {}", attachment.fileName().get());
 596         }
 597         if (attachment.size().isPresent() || attachment.preview().isPresent()) {
 598             writer.println("Size: {}{}",
 599                     attachment.size().isPresent() ? attachment.size().get() + " bytes" : "<unavailable>",
 600                     attachment.preview().isPresent() ? " (Preview is available: "
 601                             + attachment.preview().get().length
 602                             + " bytes)" : "");
 603         }
 604         if (attachment.thumbnail().isPresent()) {
 605             writer.println("Thumbnail:");
 606             printAttachment(writer.indentedWriter(), attachment.thumbnail().get());
 607         }
 608         final var flags = new ArrayList<String>();
 609         if (attachment.isVoiceNote()) {
 610             flags.add("voice note");
 611         }
 612         if (attachment.isBorderless()) {
 613             flags.add("borderless");
 614         }
 615         if (attachment.isGif()) {
 616             flags.add("video gif");
 617         }
 618         if (!flags.isEmpty()) {
 619             writer.println("Flags: {}", String.join(", ", flags));
 620         }
 621         if (attachment.width().isPresent() || attachment.height().isPresent()) {
 622             writer.println("Dimensions: {}x{}", attachment.width().orElse(0), attachment.height().orElse(0));
 623         }
 624         if (attachment.file().isPresent()) {
 625             var file = attachment.file().get();
 626             if (file.exists()) {
 627                 writer.println("Stored plaintext in: {}", file);
 628             }
 629         }
 630     }
 631
 632     private String formatContact(RecipientAddress address) {
 633         final var number = address.getLegacyIdentifier();
 634         final var name = m.getContactOrProfileName(RecipientIdentifier.Single.fromAddress(address));
 635         if (name == null || name.isEmpty()) {
 636             return number;
 637         } else {
 638             return MessageFormatter.arrayFormat("“{}” {}", new Object[]{name, number}).getMessage();
 639         }
 640     }
 641 }