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.UntrustedIdentityException;
   5 import org.asamk.signal.manager.api.RecipientIdentifier;
   6 import org.asamk.signal.manager.groups.GroupId;
   7 import org.asamk.signal.manager.groups.GroupUtils;
   8 import org.asamk.signal.util.DateUtils;
   9 import org.asamk.signal.util.Util;
  10 import org.slf4j.helpers.MessageFormatter;
  11 import org.whispersystems.libsignal.protocol.DecryptionErrorMessage;
  12 import org.whispersystems.signalservice.api.messages.SignalServiceAttachment;
  13 import org.whispersystems.signalservice.api.messages.SignalServiceContent;
  14 import org.whispersystems.signalservice.api.messages.SignalServiceDataMessage;
  15 import org.whispersystems.signalservice.api.messages.SignalServiceEnvelope;
  16 import org.whispersystems.signalservice.api.messages.SignalServiceGroupContext;
  17 import org.whispersystems.signalservice.api.messages.SignalServiceReceiptMessage;
  18 import org.whispersystems.signalservice.api.messages.SignalServiceTypingMessage;
  19 import org.whispersystems.signalservice.api.messages.calls.SignalServiceCallMessage;
  20 import org.whispersystems.signalservice.api.messages.multidevice.SignalServiceSyncMessage;
  21 import org.whispersystems.signalservice.api.messages.shared.SharedContact;
  22 import org.whispersystems.signalservice.api.push.SignalServiceAddress;
  23
  24 import java.util.ArrayList;
  25 import java.util.Base64;
  26 import java.util.stream.Collectors;
  27
  28 import static org.asamk.signal.util.Util.getLegacyIdentifier;
  29
  30 public class ReceiveMessageHandler implements Manager.ReceiveMessageHandler {
  31
  32     final Manager m;
  33     final PlainTextWriter writer;
  34
  35     public ReceiveMessageHandler(Manager m, final PlainTextWriter writer) {
  36         this.m = m;
  37         this.writer = writer;
  38     }
  39
  40     @Override
  41     public void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent content, Throwable exception) {
  42         if (envelope.hasSourceUuid()) {
  43             var source = envelope.getSourceAddress();
  44             writer.println("Envelope from: {} (device: {})", formatContact(source), envelope.getSourceDevice());
  45         } else {
  46             writer.println("Envelope from: unknown source");
  47         }
  48         writer.println("Timestamp: {}", DateUtils.formatTimestamp(envelope.getTimestamp()));
  49         if (envelope.isUnidentifiedSender()) {
  50             writer.println("Sent by unidentified/sealed sender");
  51         }
  52
  53         if (envelope.isReceipt()) {
  54             writer.println("Got receipt.");
  55         } else if (envelope.isSignalMessage() || envelope.isPreKeySignalMessage() || envelope.isUnidentifiedSender()) {
  56             if (exception != null) {
  57                 if (exception instanceof UntrustedIdentityException) {
  58                     var e = (UntrustedIdentityException) exception;
  59                     writer.println(
  60                             "The user’s key is untrusted, either the user has reinstalled Signal or a third party sent this message.");
  61                     final var recipientName = getLegacyIdentifier(m.resolveSignalServiceAddress(e.getSender()));
  62                     writer.println(
  63                             "Use 'signal-cli -u {} listIdentities -n {}', verify the key and run 'signal-cli -u {} trust -v \"FINGER_PRINT\" {}' to mark it as trusted",
  64                             m.getUsername(),
  65                             recipientName,
  66                             m.getUsername(),
  67                             recipientName);
  68                     writer.println(
  69                             "If you don't care about security, use 'signal-cli -u {} trust -a {}' to trust it without verification",
  70                             m.getUsername(),
  71                             recipientName);
  72                 } else {
  73                     writer.println("Exception: {} ({})", exception.getMessage(), exception.getClass().getSimpleName());
  74                 }
  75             }
  76             if (content == null) {
  77                 writer.println("No message content");
  78             } else {
  79                 writer.println("Sender: {} (device: {})",
  80                         formatContact(content.getSender()),
  81                         content.getSenderDevice());
  82                 writer.println("Server timestamps: received: {} delivered: {}",
  83                         DateUtils.formatTimestamp(content.getServerReceivedTimestamp()),
  84                         DateUtils.formatTimestamp(content.getServerDeliveredTimestamp()));
  85
  86                 if (content.getSenderKeyDistributionMessage().isPresent()) {
  87                     final var message = content.getSenderKeyDistributionMessage().get();
  88                     writer.println("Received a sender key distribution message for distributionId {}",
  89                             message.getDistributionId());
  90                 }
  91
  92                 if (content.getDataMessage().isPresent()) {
  93                     var message = content.getDataMessage().get();
  94                     printDataMessage(writer, message);
  95                 }
  96                 if (content.getSyncMessage().isPresent()) {
  97                     writer.println("Received a sync message");
  98                     var syncMessage = content.getSyncMessage().get();
  99                     printSyncMessage(writer, syncMessage);
 100                 }
 101
 102                 if (content.getCallMessage().isPresent()) {
 103                     writer.println("Received a call message");
 104                     var callMessage = content.getCallMessage().get();
 105                     printCallMessage(writer.indentedWriter(), callMessage);
 106                 }
 107                 if (content.getReceiptMessage().isPresent()) {
 108                     writer.println("Received a receipt message");
 109                     var receiptMessage = content.getReceiptMessage().get();
 110                     printReceiptMessage(writer.indentedWriter(), receiptMessage);
 111                 }
 112                 if (content.getTypingMessage().isPresent()) {
 113                     writer.println("Received a typing message");
 114                     var typingMessage = content.getTypingMessage().get();
 115                     printTypingMessage(writer.indentedWriter(), typingMessage);
 116                 }
 117                 if (content.getDecryptionErrorMessage().isPresent()) {
 118                     writer.println("Received a decryption error message (resend request)");
 119                     var decryptionErrorMessage = content.getDecryptionErrorMessage().get();
 120                     printDecryptionErrorMessage(writer.indentedWriter(), decryptionErrorMessage);
 121                 }
 122             }
 123         } else {
 124             writer.println("Unknown message received.");
 125         }
 126         writer.println();
 127     }
 128
 129     private void printDataMessage(
 130             PlainTextWriter writer, SignalServiceDataMessage message
 131     ) {
 132         writer.println("Message timestamp: {}", DateUtils.formatTimestamp(message.getTimestamp()));
 133         if (message.isViewOnce()) {
 134             writer.println("=VIEW ONCE=");
 135         }
 136
 137         if (message.getBody().isPresent()) {
 138             writer.println("Body: {}", message.getBody().get());
 139         }
 140         if (message.getGroupContext().isPresent()) {
 141             writer.println("Group info:");
 142             final var groupContext = message.getGroupContext().get();
 143             printGroupContext(writer.indentedWriter(), groupContext);
 144         }
 145         if (message.getGroupCallUpdate().isPresent()) {
 146             writer.println("Group call update:");
 147             final var groupCallUpdate = message.getGroupCallUpdate().get();
 148             writer.indentedWriter().println("Era id: {}", groupCallUpdate.getEraId());
 149         }
 150         if (message.getPreviews().isPresent()) {
 151             writer.println("Previews:");
 152             final var previews = message.getPreviews().get();
 153             for (var preview : previews) {
 154                 writer.println("- Preview");
 155                 printPreview(writer.indentedWriter(), preview);
 156             }
 157         }
 158         if (message.getSharedContacts().isPresent()) {
 159             final var sharedContacts = message.getSharedContacts().get();
 160             writer.println("Contacts:");
 161             for (var contact : sharedContacts) {
 162                 writer.println("- Contact:");
 163                 printSharedContact(writer.indentedWriter(), contact);
 164             }
 165         }
 166         if (message.getSticker().isPresent()) {
 167             final var sticker = message.getSticker().get();
 168             writer.println("Sticker:");
 169             printSticker(writer.indentedWriter(), sticker);
 170         }
 171         if (message.isEndSession()) {
 172             writer.println("Is end session");
 173         }
 174         if (message.isExpirationUpdate()) {
 175             writer.println("Is Expiration update: {}", message.isExpirationUpdate());
 176         }
 177         if (message.getExpiresInSeconds() > 0) {
 178             writer.println("Expires in: {} seconds", message.getExpiresInSeconds());
 179         }
 180         if (message.getProfileKey().isPresent()) {
 181             writer.println("Profile key update, key length: {}", message.getProfileKey().get().length);
 182         }
 183         if (message.getReaction().isPresent()) {
 184             writer.println("Reaction:");
 185             final var reaction = message.getReaction().get();
 186             printReaction(writer.indentedWriter(), reaction);
 187         }
 188         if (message.getQuote().isPresent()) {
 189             writer.println("Quote:");
 190             var quote = message.getQuote().get();
 191             printQuote(writer.indentedWriter(), quote);
 192         }
 193         if (message.getRemoteDelete().isPresent()) {
 194             final var remoteDelete = message.getRemoteDelete().get();
 195             writer.println("Remote delete message: timestamp = {}", remoteDelete.getTargetSentTimestamp());
 196         }
 197         if (message.getMentions().isPresent()) {
 198             writer.println("Mentions:");
 199             for (var mention : message.getMentions().get()) {
 200                 printMention(writer, mention);
 201             }
 202         }
 203         if (message.getAttachments().isPresent()) {
 204             writer.println("Attachments:");
 205             for (var attachment : message.getAttachments().get()) {
 206                 writer.println("- Attachment:");
 207                 printAttachment(writer.indentedWriter(), attachment);
 208             }
 209         }
 210     }
 211
 212     private void printTypingMessage(
 213             final PlainTextWriter writer, final SignalServiceTypingMessage typingMessage
 214     ) {
 215         writer.println("Action: {}", typingMessage.getAction());
 216         writer.println("Timestamp: {}", DateUtils.formatTimestamp(typingMessage.getTimestamp()));
 217         if (typingMessage.getGroupId().isPresent()) {
 218             writer.println("Group Info:");
 219             final var groupId = GroupId.unknownVersion(typingMessage.getGroupId().get());
 220             printGroupInfo(writer.indentedWriter(), groupId);
 221         }
 222     }
 223
 224     private void printDecryptionErrorMessage(
 225             final PlainTextWriter writer, final DecryptionErrorMessage decryptionErrorMessage
 226     ) {
 227         writer.println("Device id: {}", decryptionErrorMessage.getDeviceId());
 228         writer.println("Timestamp: {}", DateUtils.formatTimestamp(decryptionErrorMessage.getTimestamp()));
 229         writer.println("Ratchet key: {}",
 230                 decryptionErrorMessage.getRatchetKey().isPresent() ? "is present" : "not present");
 231     }
 232
 233     private void printReceiptMessage(
 234             final PlainTextWriter writer, final SignalServiceReceiptMessage receiptMessage
 235     ) {
 236         writer.println("When: {}", DateUtils.formatTimestamp(receiptMessage.getWhen()));
 237         if (receiptMessage.isDeliveryReceipt()) {
 238             writer.println("Is delivery receipt");
 239         }
 240         if (receiptMessage.isReadReceipt()) {
 241             writer.println("Is read receipt");
 242         }
 243         if (receiptMessage.isViewedReceipt()) {
 244             writer.println("Is viewed receipt");
 245         }
 246         writer.println("Timestamps:");
 247         for (long timestamp : receiptMessage.getTimestamps()) {
 248             writer.println("- {}", DateUtils.formatTimestamp(timestamp));
 249         }
 250     }
 251
 252     private void printCallMessage(
 253             final PlainTextWriter writer, final SignalServiceCallMessage callMessage
 254     ) {
 255         if (callMessage.getDestinationDeviceId().isPresent()) {
 256             final var deviceId = callMessage.getDestinationDeviceId().get();
 257             writer.println("Destination device id: {}", deviceId);
 258         }
 259         if (callMessage.getGroupId().isPresent()) {
 260             final var groupId = GroupId.unknownVersion(callMessage.getGroupId().get());
 261             writer.println("Destination group id: {}", groupId);
 262         }
 263         if (callMessage.getTimestamp().isPresent()) {
 264             writer.println("Timestamp: {}", DateUtils.formatTimestamp(callMessage.getTimestamp().get()));
 265         }
 266         if (callMessage.getAnswerMessage().isPresent()) {
 267             var answerMessage = callMessage.getAnswerMessage().get();
 268             writer.println("Answer message: {}, sdp: {})", answerMessage.getId(), answerMessage.getSdp());
 269         }
 270         if (callMessage.getBusyMessage().isPresent()) {
 271             var busyMessage = callMessage.getBusyMessage().get();
 272             writer.println("Busy message: {}", busyMessage.getId());
 273         }
 274         if (callMessage.getHangupMessage().isPresent()) {
 275             var hangupMessage = callMessage.getHangupMessage().get();
 276             writer.println("Hangup message: {}", hangupMessage.getId());
 277         }
 278         if (callMessage.getIceUpdateMessages().isPresent()) {
 279             writer.println("Ice update messages:");
 280             var iceUpdateMessages = callMessage.getIceUpdateMessages().get();
 281             for (var iceUpdateMessage : iceUpdateMessages) {
 282                 writer.println("- {}, sdp: {}", iceUpdateMessage.getId(), iceUpdateMessage.getSdp());
 283             }
 284         }
 285         if (callMessage.getOfferMessage().isPresent()) {
 286             var offerMessage = callMessage.getOfferMessage().get();
 287             writer.println("Offer message: {}, sdp: {}", offerMessage.getId(), offerMessage.getSdp());
 288         }
 289         if (callMessage.getOpaqueMessage().isPresent()) {
 290             final var opaqueMessage = callMessage.getOpaqueMessage().get();
 291             writer.println("Opaque message: size {}, urgency: {}",
 292                     opaqueMessage.getOpaque().length,
 293                     opaqueMessage.getUrgency().name());
 294         }
 295     }
 296
 297     private void printSyncMessage(
 298             final PlainTextWriter writer, final SignalServiceSyncMessage syncMessage
 299     ) {
 300         if (syncMessage.getContacts().isPresent()) {
 301             final var contactsMessage = syncMessage.getContacts().get();
 302             var type = contactsMessage.isComplete() ? "complete" : "partial";
 303             writer.println("Received {} sync contacts:", type);
 304             printAttachment(writer.indentedWriter(), contactsMessage.getContactsStream());
 305         }
 306         if (syncMessage.getGroups().isPresent()) {
 307             writer.println("Received sync groups:");
 308             printAttachment(writer.indentedWriter(), syncMessage.getGroups().get());
 309         }
 310         if (syncMessage.getRead().isPresent()) {
 311             writer.println("Received sync read messages list");
 312             for (var rm : syncMessage.getRead().get()) {
 313                 writer.println("- From: {} Message timestamp: {}",
 314                         formatContact(rm.getSender()),
 315                         DateUtils.formatTimestamp(rm.getTimestamp()));
 316             }
 317         }
 318         if (syncMessage.getViewed().isPresent()) {
 319             writer.println("Received sync viewed messages list");
 320             for (var vm : syncMessage.getViewed().get()) {
 321                 writer.println("- From: {} Message timestamp: {}",
 322                         formatContact(vm.getSender()),
 323                         DateUtils.formatTimestamp(vm.getTimestamp()));
 324             }
 325         }
 326         if (syncMessage.getRequest().isPresent()) {
 327             String type;
 328             if (syncMessage.getRequest().get().isContactsRequest()) {
 329                 type = "contacts";
 330             } else if (syncMessage.getRequest().get().isGroupsRequest()) {
 331                 type = "groups";
 332             } else if (syncMessage.getRequest().get().isBlockedListRequest()) {
 333                 type = "blocked list";
 334             } else if (syncMessage.getRequest().get().isConfigurationRequest()) {
 335                 type = "configuration";
 336             } else if (syncMessage.getRequest().get().isKeysRequest()) {
 337                 type = "keys";
 338             } else {
 339                 type = "<unknown>";
 340             }
 341             writer.println("Received sync request for: {}", type);
 342         }
 343         if (syncMessage.getSent().isPresent()) {
 344             writer.println("Received sync sent message");
 345             final var sentTranscriptMessage = syncMessage.getSent().get();
 346             String to;
 347             if (sentTranscriptMessage.getDestination().isPresent()) {
 348                 to = formatContact(sentTranscriptMessage.getDestination().get());
 349             } else if (sentTranscriptMessage.getRecipients().size() > 0) {
 350                 to = sentTranscriptMessage.getRecipients()
 351                         .stream()
 352                         .map(this::formatContact)
 353                         .collect(Collectors.joining(", "));
 354             } else {
 355                 to = "<unknown>";
 356             }
 357             writer.indentedWriter().println("To: {}", to);
 358             writer.indentedWriter()
 359                     .println("Timestamp: {}", DateUtils.formatTimestamp(sentTranscriptMessage.getTimestamp()));
 360             if (sentTranscriptMessage.getExpirationStartTimestamp() > 0) {
 361                 writer.indentedWriter()
 362                         .println("Expiration started at: {}",
 363                                 DateUtils.formatTimestamp(sentTranscriptMessage.getExpirationStartTimestamp()));
 364             }
 365             var message = sentTranscriptMessage.getMessage();
 366             printDataMessage(writer.indentedWriter(), message);
 367         }
 368         if (syncMessage.getBlockedList().isPresent()) {
 369             writer.println("Received sync message with block list");
 370             writer.println("Blocked numbers:");
 371             final var blockedList = syncMessage.getBlockedList().get();
 372             for (var address : blockedList.getAddresses()) {
 373                 writer.println("- {}", getLegacyIdentifier(address));
 374             }
 375         }
 376         if (syncMessage.getVerified().isPresent()) {
 377             writer.println("Received sync message with verified identities:");
 378             final var verifiedMessage = syncMessage.getVerified().get();
 379             writer.println("- {}: {}", formatContact(verifiedMessage.getDestination()), verifiedMessage.getVerified());
 380             var safetyNumber = Util.formatSafetyNumber(m.computeSafetyNumber(verifiedMessage.getDestination(),
 381                     verifiedMessage.getIdentityKey()));
 382             writer.indentedWriter().println(safetyNumber);
 383         }
 384         if (syncMessage.getConfiguration().isPresent()) {
 385             writer.println("Received sync message with configuration:");
 386             final var configurationMessage = syncMessage.getConfiguration().get();
 387             if (configurationMessage.getReadReceipts().isPresent()) {
 388                 writer.println("- Read receipts: {}",
 389                         configurationMessage.getReadReceipts().get() ? "enabled" : "disabled");
 390             }
 391             if (configurationMessage.getLinkPreviews().isPresent()) {
 392                 writer.println("- Link previews: {}",
 393                         configurationMessage.getLinkPreviews().get() ? "enabled" : "disabled");
 394             }
 395             if (configurationMessage.getTypingIndicators().isPresent()) {
 396                 writer.println("- Typing indicators: {}",
 397                         configurationMessage.getTypingIndicators().get() ? "enabled" : "disabled");
 398             }
 399             if (configurationMessage.getUnidentifiedDeliveryIndicators().isPresent()) {
 400                 writer.println("- Unidentified Delivery Indicators: {}",
 401                         configurationMessage.getUnidentifiedDeliveryIndicators().get() ? "enabled" : "disabled");
 402             }
 403         }
 404         if (syncMessage.getFetchType().isPresent()) {
 405             final var fetchType = syncMessage.getFetchType().get();
 406             writer.println("Received sync message with fetch type: {}", fetchType);
 407         }
 408         if (syncMessage.getViewOnceOpen().isPresent()) {
 409             final var viewOnceOpenMessage = syncMessage.getViewOnceOpen().get();
 410             writer.println("Received sync message with view once open message:");
 411             writer.indentedWriter().println("Sender: {}", formatContact(viewOnceOpenMessage.getSender()));
 412             writer.indentedWriter()
 413                     .println("Timestamp: {}", DateUtils.formatTimestamp(viewOnceOpenMessage.getTimestamp()));
 414         }
 415         if (syncMessage.getStickerPackOperations().isPresent()) {
 416             final var stickerPackOperationMessages = syncMessage.getStickerPackOperations().get();
 417             writer.println("Received sync message with sticker pack operations:");
 418             for (var m : stickerPackOperationMessages) {
 419                 writer.println("- {}", m.getType().isPresent() ? m.getType().get() : "<unknown>");
 420                 if (m.getPackId().isPresent()) {
 421                     writer.indentedWriter()
 422                             .println("packId: {}", Base64.getEncoder().encodeToString(m.getPackId().get()));
 423                 }
 424                 if (m.getPackKey().isPresent()) {
 425                     writer.indentedWriter()
 426                             .println("packKey: {}", Base64.getEncoder().encodeToString(m.getPackKey().get()));
 427                 }
 428             }
 429         }
 430         if (syncMessage.getMessageRequestResponse().isPresent()) {
 431             final var requestResponseMessage = syncMessage.getMessageRequestResponse().get();
 432             writer.println("Received message request response:");
 433             writer.indentedWriter().println("Type: {}", requestResponseMessage.getType());
 434             if (requestResponseMessage.getGroupId().isPresent()) {
 435                 writer.println("For group:");
 436                 printGroupInfo(writer.indentedWriter(),
 437                         GroupId.unknownVersion(requestResponseMessage.getGroupId().get()));
 438             }
 439             if (requestResponseMessage.getPerson().isPresent()) {
 440                 writer.indentedWriter()
 441                         .println("For Person: {}", formatContact(requestResponseMessage.getPerson().get()));
 442             }
 443         }
 444         if (syncMessage.getKeys().isPresent()) {
 445             final var keysMessage = syncMessage.getKeys().get();
 446             writer.println("Received sync message with keys:");
 447             if (keysMessage.getStorageService().isPresent()) {
 448                 writer.println("-  storage key: length: {}", keysMessage.getStorageService().get().serialize().length);
 449             }
 450         }
 451     }
 452
 453     private void printPreview(
 454             final PlainTextWriter writer, final SignalServiceDataMessage.Preview preview
 455     ) {
 456         writer.println("Title: {}", preview.getTitle());
 457         writer.println("Description: {}", preview.getDescription());
 458         writer.println("Date: {}", DateUtils.formatTimestamp(preview.getDate()));
 459         writer.println("Url: {}", preview.getUrl());
 460         if (preview.getImage().isPresent()) {
 461             writer.println("Image:");
 462             printAttachment(writer.indentedWriter(), preview.getImage().get());
 463         }
 464     }
 465
 466     private void printSticker(
 467             final PlainTextWriter writer, final SignalServiceDataMessage.Sticker sticker
 468     ) {
 469         writer.println("Pack id: {}", Base64.getEncoder().encodeToString(sticker.getPackId()));
 470         writer.println("Pack key: {}", Base64.getEncoder().encodeToString(sticker.getPackKey()));
 471         writer.println("Sticker id: {}", sticker.getStickerId());
 472         writer.println("Image:");
 473         printAttachment(writer.indentedWriter(), sticker.getAttachment());
 474     }
 475
 476     private void printReaction(
 477             final PlainTextWriter writer, final SignalServiceDataMessage.Reaction reaction
 478     ) {
 479         writer.println("Emoji: {}", reaction.getEmoji());
 480         writer.println("Target author: {}", formatContact(reaction.getTargetAuthor()));
 481         writer.println("Target timestamp: {}", DateUtils.formatTimestamp(reaction.getTargetSentTimestamp()));
 482         writer.println("Is remove: {}", reaction.isRemove());
 483     }
 484
 485     private void printQuote(
 486             final PlainTextWriter writer, final SignalServiceDataMessage.Quote quote
 487     ) {
 488         writer.println("Id: {}", quote.getId());
 489         writer.println("Author: {}", formatContact(quote.getAuthor()));
 490         writer.println("Text: {}", quote.getText());
 491         if (quote.getMentions() != null && quote.getMentions().size() > 0) {
 492             writer.println("Mentions:");
 493             for (var mention : quote.getMentions()) {
 494                 printMention(writer, mention);
 495             }
 496         }
 497         if (quote.getAttachments().size() > 0) {
 498             writer.println("Attachments:");
 499             for (var attachment : quote.getAttachments()) {
 500                 writer.println("- Filename: {}", attachment.getFileName());
 501                 writer.indent(w -> {
 502                     w.println("Type: {}", attachment.getContentType());
 503                     w.println("Thumbnail:");
 504                     if (attachment.getThumbnail() != null) {
 505                         printAttachment(w, attachment.getThumbnail());
 506                     }
 507                 });
 508             }
 509         }
 510     }
 511
 512     private void printSharedContact(final PlainTextWriter writer, final SharedContact contact) {
 513         writer.println("Name:");
 514         var name = contact.getName();
 515         writer.indent(w -> {
 516             if (name.getDisplay().isPresent() && !name.getDisplay().get().isBlank()) {
 517                 w.println("Display name: {}", name.getDisplay().get());
 518             }
 519             if (name.getGiven().isPresent() && !name.getGiven().get().isBlank()) {
 520                 w.println("First name: {}", name.getGiven().get());
 521             }
 522             if (name.getMiddle().isPresent() && !name.getMiddle().get().isBlank()) {
 523                 w.println("Middle name: {}", name.getMiddle().get());
 524             }
 525             if (name.getFamily().isPresent() && !name.getFamily().get().isBlank()) {
 526                 w.println("Family name: {}", name.getFamily().get());
 527             }
 528             if (name.getPrefix().isPresent() && !name.getPrefix().get().isBlank()) {
 529                 w.println("Prefix name: {}", name.getPrefix().get());
 530             }
 531             if (name.getSuffix().isPresent() && !name.getSuffix().get().isBlank()) {
 532                 w.println("Suffix name: {}", name.getSuffix().get());
 533             }
 534         });
 535
 536         if (contact.getAvatar().isPresent()) {
 537             var avatar = contact.getAvatar().get();
 538             writer.println("Avatar: (profile: {})", avatar.isProfile());
 539             printAttachment(writer.indentedWriter(), avatar.getAttachment());
 540         }
 541
 542         if (contact.getOrganization().isPresent()) {
 543             writer.println("Organisation: {}", contact.getOrganization().get());
 544         }
 545
 546         if (contact.getPhone().isPresent()) {
 547             writer.println("Phone details:");
 548             for (var phone : contact.getPhone().get()) {
 549                 writer.println("- Phone:");
 550                 writer.indent(w -> {
 551                     if (phone.getValue() != null) {
 552                         w.println("Number: {}", phone.getValue());
 553                     }
 554                     if (phone.getType() != null) {
 555                         w.println("Type: {}", phone.getType());
 556                     }
 557                     if (phone.getLabel().isPresent() && !phone.getLabel().get().isBlank()) {
 558                         w.println("Label: {}", phone.getLabel().get());
 559                     }
 560                 });
 561             }
 562         }
 563
 564         if (contact.getEmail().isPresent()) {
 565             writer.println("Email details:");
 566             for (var email : contact.getEmail().get()) {
 567                 writer.println("- Email:");
 568                 writer.indent(w -> {
 569                     if (email.getValue() != null) {
 570                         w.println("Address: {}", email.getValue());
 571                     }
 572                     if (email.getType() != null) {
 573                         w.println("Type: {}", email.getType());
 574                     }
 575                     if (email.getLabel().isPresent() && !email.getLabel().get().isBlank()) {
 576                         w.println("Label: {}", email.getLabel().get());
 577                     }
 578                 });
 579             }
 580         }
 581
 582         if (contact.getAddress().isPresent()) {
 583             writer.println("Address details:");
 584             for (var address : contact.getAddress().get()) {
 585                 writer.println("- Address:");
 586                 writer.indent(w -> {
 587                     if (address.getType() != null) {
 588                         w.println("Type: {}", address.getType());
 589                     }
 590                     if (address.getLabel().isPresent() && !address.getLabel().get().isBlank()) {
 591                         w.println("Label: {}", address.getLabel().get());
 592                     }
 593                     if (address.getStreet().isPresent() && !address.getStreet().get().isBlank()) {
 594                         w.println("Street: {}", address.getStreet().get());
 595                     }
 596                     if (address.getPobox().isPresent() && !address.getPobox().get().isBlank()) {
 597                         w.println("Pobox: {}", address.getPobox().get());
 598                     }
 599                     if (address.getNeighborhood().isPresent() && !address.getNeighborhood().get().isBlank()) {
 600                         w.println("Neighbourhood: {}", address.getNeighborhood().get());
 601                     }
 602                     if (address.getCity().isPresent() && !address.getCity().get().isBlank()) {
 603                         w.println("City: {}", address.getCity().get());
 604                     }
 605                     if (address.getRegion().isPresent() && !address.getRegion().get().isBlank()) {
 606                         w.println("Region: {}", address.getRegion().get());
 607                     }
 608                     if (address.getPostcode().isPresent() && !address.getPostcode().get().isBlank()) {
 609                         w.println("Postcode: {}", address.getPostcode().get());
 610                     }
 611                     if (address.getCountry().isPresent() && !address.getCountry().get().isBlank()) {
 612                         w.println("Country: {}", address.getCountry().get());
 613                     }
 614                 });
 615             }
 616         }
 617     }
 618
 619     private void printGroupContext(
 620             final PlainTextWriter writer, final SignalServiceGroupContext groupContext
 621     ) {
 622         final var groupId = GroupUtils.getGroupId(groupContext);
 623         if (groupContext.getGroupV1().isPresent()) {
 624             var groupInfo = groupContext.getGroupV1().get();
 625             printGroupInfo(writer, groupId);
 626             writer.println("Type: {}", groupInfo.getType());
 627             if (groupInfo.getMembers().isPresent()) {
 628                 writer.println("Members:");
 629                 for (var member : groupInfo.getMembers().get()) {
 630                     writer.println("- {}", formatContact(member));
 631                 }
 632             }
 633             if (groupInfo.getAvatar().isPresent()) {
 634                 writer.println("Avatar:");
 635                 printAttachment(writer.indentedWriter(), groupInfo.getAvatar().get());
 636             }
 637         } else if (groupContext.getGroupV2().isPresent()) {
 638             final var groupInfo = groupContext.getGroupV2().get();
 639             printGroupInfo(writer, groupId);
 640             writer.println("Revision: {}", groupInfo.getRevision());
 641             writer.println("Master key length: {}", groupInfo.getMasterKey().serialize().length);
 642             writer.println("Has signed group change: {}", groupInfo.hasSignedGroupChange());
 643         }
 644     }
 645
 646     private void printGroupInfo(final PlainTextWriter writer, final GroupId groupId) {
 647         writer.println("Id: {}", groupId.toBase64());
 648
 649         var group = m.getGroup(groupId);
 650         if (group != null) {
 651             writer.println("Name: {}", group.getTitle());
 652         } else {
 653             writer.println("Name: <Unknown group>");
 654         }
 655     }
 656
 657     private void printMention(
 658             PlainTextWriter writer, SignalServiceDataMessage.Mention mention
 659     ) {
 660         final var address = m.resolveSignalServiceAddress(mention.getUuid());
 661         writer.println("- {}: {} (length: {})", formatContact(address), mention.getStart(), mention.getLength());
 662     }
 663
 664     private void printAttachment(PlainTextWriter writer, SignalServiceAttachment attachment) {
 665         writer.println("Content-Type: {}", attachment.getContentType());
 666         writer.println("Type: {}", attachment.isPointer() ? "Pointer" : attachment.isStream() ? "Stream" : "<unknown>");
 667         if (attachment.isPointer()) {
 668             final var pointer = attachment.asPointer();
 669             writer.println("Id: {} Key length: {}", pointer.getRemoteId(), pointer.getKey().length);
 670             if (pointer.getUploadTimestamp() > 0) {
 671                 writer.println("Upload timestamp: {}", DateUtils.formatTimestamp(pointer.getUploadTimestamp()));
 672             }
 673             if (pointer.getCaption().isPresent()) {
 674                 writer.println("Caption: {}", pointer.getCaption().get());
 675             }
 676             if (pointer.getFileName().isPresent()) {
 677                 writer.println("Filename: {}", pointer.getFileName().get());
 678             }
 679             writer.println("Size: {}{}",
 680                     pointer.getSize().isPresent() ? pointer.getSize().get() + " bytes" : "<unavailable>",
 681                     pointer.getPreview().isPresent() ? " (Preview is available: "
 682                             + pointer.getPreview().get().length
 683                             + " bytes)" : "");
 684             final var flags = new ArrayList<String>();
 685             if (pointer.getVoiceNote()) {
 686                 flags.add("voice note");
 687             }
 688             if (pointer.isBorderless()) {
 689                 flags.add("borderless");
 690             }
 691             if (pointer.isGif()) {
 692                 flags.add("video gif");
 693             }
 694             if (flags.size() > 0) {
 695                 writer.println("Flags: {}", String.join(", ", flags));
 696             }
 697             if (pointer.getWidth() > 0 || pointer.getHeight() > 0) {
 698                 writer.println("Dimensions: {}x{}", pointer.getWidth(), pointer.getHeight());
 699             }
 700             var file = m.getAttachmentFile(pointer.getRemoteId());
 701             if (file.exists()) {
 702                 writer.println("Stored plaintext in: {}", file);
 703             }
 704         }
 705     }
 706
 707     private String formatContact(SignalServiceAddress address) {
 708         address = m.resolveSignalServiceAddress(address);
 709         final var number = getLegacyIdentifier(address);
 710         final var name = m.getContactOrProfileName(RecipientIdentifier.Single.fromAddress(address));
 711         if (name == null || name.isEmpty()) {
 712             return number;
 713         } else {
 714             return MessageFormatter.arrayFormat("“{}” {}", new Object[]{name, number}).getMessage();
 715         }
 716     }
 717 }