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.groups.GroupId;
   5 import org.asamk.signal.manager.groups.GroupUtils;
   6 import org.asamk.signal.manager.storage.contacts.ContactInfo;
   7 import org.asamk.signal.manager.storage.groups.GroupInfo;
   8 import org.asamk.signal.util.DateUtils;
   9 import org.asamk.signal.util.Util;
  10 import org.whispersystems.signalservice.api.messages.SignalServiceAttachment;
  11 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentPointer;
  12 import org.whispersystems.signalservice.api.messages.SignalServiceContent;
  13 import org.whispersystems.signalservice.api.messages.SignalServiceDataMessage;
  14 import org.whispersystems.signalservice.api.messages.SignalServiceEnvelope;
  15 import org.whispersystems.signalservice.api.messages.SignalServiceGroup;
  16 import org.whispersystems.signalservice.api.messages.SignalServiceGroupContext;
  17 import org.whispersystems.signalservice.api.messages.SignalServiceGroupV2;
  18 import org.whispersystems.signalservice.api.messages.SignalServiceReceiptMessage;
  19 import org.whispersystems.signalservice.api.messages.SignalServiceTypingMessage;
  20 import org.whispersystems.signalservice.api.messages.calls.AnswerMessage;
  21 import org.whispersystems.signalservice.api.messages.calls.BusyMessage;
  22 import org.whispersystems.signalservice.api.messages.calls.HangupMessage;
  23 import org.whispersystems.signalservice.api.messages.calls.IceUpdateMessage;
  24 import org.whispersystems.signalservice.api.messages.calls.OfferMessage;
  25 import org.whispersystems.signalservice.api.messages.calls.SignalServiceCallMessage;
  26 import org.whispersystems.signalservice.api.messages.multidevice.BlockedListMessage;
  27 import org.whispersystems.signalservice.api.messages.multidevice.ConfigurationMessage;
  28 import org.whispersystems.signalservice.api.messages.multidevice.ContactsMessage;
  29 import org.whispersystems.signalservice.api.messages.multidevice.KeysMessage;
  30 import org.whispersystems.signalservice.api.messages.multidevice.MessageRequestResponseMessage;
  31 import org.whispersystems.signalservice.api.messages.multidevice.ReadMessage;
  32 import org.whispersystems.signalservice.api.messages.multidevice.SentTranscriptMessage;
  33 import org.whispersystems.signalservice.api.messages.multidevice.SignalServiceSyncMessage;
  34 import org.whispersystems.signalservice.api.messages.multidevice.StickerPackOperationMessage;
  35 import org.whispersystems.signalservice.api.messages.multidevice.VerifiedMessage;
  36 import org.whispersystems.signalservice.api.messages.multidevice.ViewOnceOpenMessage;
  37 import org.whispersystems.signalservice.api.messages.shared.SharedContact;
  38 import org.whispersystems.signalservice.api.push.SignalServiceAddress;
  39
  40 import java.io.File;
  41 import java.util.Base64;
  42 import java.util.List;
  43
  44 public class ReceiveMessageHandler implements Manager.ReceiveMessageHandler {
  45
  46     final Manager m;
  47
  48     public ReceiveMessageHandler(Manager m) {
  49         this.m = m;
  50     }
  51
  52     @Override
  53     public void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent content, Throwable exception) {
  54         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
  55             SignalServiceAddress source = envelope.getSourceAddress();
  56             ContactInfo sourceContact = m.getContact(source.getLegacyIdentifier());
  57             System.out.println(String.format("Envelope from: %s (device: %d)",
  58                     (sourceContact == null ? "" : "“" + sourceContact.name + "” ") + source.getLegacyIdentifier(),
  59                     envelope.getSourceDevice()));
  60             if (source.getRelay().isPresent()) {
  61                 System.out.println("Relayed by: " + source.getRelay().get());
  62             }
  63         } else {
  64             System.out.println("Envelope from: unknown source");
  65         }
  66         System.out.println("Timestamp: " + DateUtils.formatTimestamp(envelope.getTimestamp()));
  67         if (envelope.isUnidentifiedSender()) {
  68             System.out.println("Sent by unidentified/sealed sender");
  69         }
  70
  71         if (envelope.isReceipt()) {
  72             System.out.println("Got receipt.");
  73         } else if (envelope.isSignalMessage() || envelope.isPreKeySignalMessage() || envelope.isUnidentifiedSender()) {
  74             if (exception != null) {
  75                 if (exception instanceof org.whispersystems.libsignal.UntrustedIdentityException) {
  76                     org.whispersystems.libsignal.UntrustedIdentityException e = (org.whispersystems.libsignal.UntrustedIdentityException) exception;
  77                     System.out.println(
  78                             "The user’s key is untrusted, either the user has reinstalled Signal or a third party sent this message.");
  79                     System.out.println("Use 'signal-cli -u "
  80                             + m.getUsername()
  81                             + " listIdentities -n "
  82                             + e.getName()
  83                             + "', verify the key and run 'signal-cli -u "
  84                             + m.getUsername()
  85                             + " trust -v \"FINGER_PRINT\" "
  86                             + e.getName()
  87                             + "' to mark it as trusted");
  88                     System.out.println("If you don't care about security, use 'signal-cli -u "
  89                             + m.getUsername()
  90                             + " trust -a "
  91                             + e.getName()
  92                             + "' to trust it without verification");
  93                 } else {
  94                     System.out.println("Exception: " + exception.getMessage() + " (" + exception.getClass()
  95                             .getSimpleName() + ")");
  96                 }
  97             }
  98             if (content == null) {
  99                 System.out.println("Failed to decrypt message.");
 100             } else {
 101                 ContactInfo sourceContact = m.getContact(content.getSender().getLegacyIdentifier());
 102                 System.out.println(String.format("Sender: %s (device: %d)",
 103                         (sourceContact == null ? "" : "“" + sourceContact.name + "” ") + content.getSender()
 104                                 .getLegacyIdentifier(),
 105                         content.getSenderDevice()));
 106                 if (content.getDataMessage().isPresent()) {
 107                     SignalServiceDataMessage message = content.getDataMessage().get();
 108                     handleSignalServiceDataMessage(message);
 109                 }
 110                 if (content.getSyncMessage().isPresent()) {
 111                     System.out.println("Received a sync message");
 112                     SignalServiceSyncMessage syncMessage = content.getSyncMessage().get();
 113
 114                     if (syncMessage.getContacts().isPresent()) {
 115                         final ContactsMessage contactsMessage = syncMessage.getContacts().get();
 116                         if (contactsMessage.isComplete()) {
 117                             System.out.println("Received complete sync contacts");
 118                         } else {
 119                             System.out.println("Received sync contacts");
 120                         }
 121                         printAttachment(contactsMessage.getContactsStream());
 122                     }
 123                     if (syncMessage.getGroups().isPresent()) {
 124                         System.out.println("Received sync groups");
 125                         printAttachment(syncMessage.getGroups().get());
 126                     }
 127                     if (syncMessage.getRead().isPresent()) {
 128                         System.out.println("Received sync read messages list");
 129                         for (ReadMessage rm : syncMessage.getRead().get()) {
 130                             ContactInfo fromContact = m.getContact(rm.getSender().getLegacyIdentifier());
 131                             System.out.println("From: "
 132                                     + (fromContact == null ? "" : "“" + fromContact.name + "” ")
 133                                     + rm.getSender().getLegacyIdentifier()
 134                                     + " Message timestamp: "
 135                                     + DateUtils.formatTimestamp(rm.getTimestamp()));
 136                         }
 137                     }
 138                     if (syncMessage.getRequest().isPresent()) {
 139                         System.out.println("Received sync request");
 140                         if (syncMessage.getRequest().get().isContactsRequest()) {
 141                             System.out.println(" - contacts request");
 142                         }
 143                         if (syncMessage.getRequest().get().isGroupsRequest()) {
 144                             System.out.println(" - groups request");
 145                         }
 146                         if (syncMessage.getRequest().get().isBlockedListRequest()) {
 147                             System.out.println(" - blocked list request");
 148                         }
 149                         if (syncMessage.getRequest().get().isConfigurationRequest()) {
 150                             System.out.println(" - configuration request");
 151                         }
 152                         if (syncMessage.getRequest().get().isKeysRequest()) {
 153                             System.out.println(" - keys request");
 154                         }
 155                     }
 156                     if (syncMessage.getSent().isPresent()) {
 157                         System.out.println("Received sync sent message");
 158                         final SentTranscriptMessage sentTranscriptMessage = syncMessage.getSent().get();
 159                         String to;
 160                         if (sentTranscriptMessage.getDestination().isPresent()) {
 161                             String dest = sentTranscriptMessage.getDestination().get().getLegacyIdentifier();
 162                             ContactInfo destContact = m.getContact(dest);
 163                             to = (destContact == null ? "" : "“" + destContact.name + "” ") + dest;
 164                         } else if (sentTranscriptMessage.getRecipients().size() > 0) {
 165                             StringBuilder toBuilder = new StringBuilder();
 166                             for (SignalServiceAddress dest : sentTranscriptMessage.getRecipients()) {
 167                                 ContactInfo destContact = m.getContact(dest.getLegacyIdentifier());
 168                                 toBuilder.append(destContact == null ? "" : "“" + destContact.name + "” ")
 169                                         .append(dest.getLegacyIdentifier())
 170                                         .append(" ");
 171                             }
 172                             to = toBuilder.toString();
 173                         } else {
 174                             to = "Unknown";
 175                         }
 176                         System.out.println("To: " + to + " , Message timestamp: " + DateUtils.formatTimestamp(
 177                                 sentTranscriptMessage.getTimestamp()));
 178                         if (sentTranscriptMessage.getExpirationStartTimestamp() > 0) {
 179                             System.out.println("Expiration started at: " + DateUtils.formatTimestamp(
 180                                     sentTranscriptMessage.getExpirationStartTimestamp()));
 181                         }
 182                         SignalServiceDataMessage message = sentTranscriptMessage.getMessage();
 183                         handleSignalServiceDataMessage(message);
 184                     }
 185                     if (syncMessage.getBlockedList().isPresent()) {
 186                         System.out.println("Received sync message with block list");
 187                         System.out.println("Blocked numbers:");
 188                         final BlockedListMessage blockedList = syncMessage.getBlockedList().get();
 189                         for (SignalServiceAddress address : blockedList.getAddresses()) {
 190                             System.out.println(" - " + address.getLegacyIdentifier());
 191                         }
 192                     }
 193                     if (syncMessage.getVerified().isPresent()) {
 194                         System.out.println("Received sync message with verified identities:");
 195                         final VerifiedMessage verifiedMessage = syncMessage.getVerified().get();
 196                         System.out.println(" - "
 197                                 + verifiedMessage.getDestination()
 198                                 + ": "
 199                                 + verifiedMessage.getVerified());
 200                         String safetyNumber = Util.formatSafetyNumber(m.computeSafetyNumber(verifiedMessage.getDestination(),
 201                                 verifiedMessage.getIdentityKey()));
 202                         System.out.println("   " + safetyNumber);
 203                     }
 204                     if (syncMessage.getConfiguration().isPresent()) {
 205                         System.out.println("Received sync message with configuration:");
 206                         final ConfigurationMessage configurationMessage = syncMessage.getConfiguration().get();
 207                         if (configurationMessage.getReadReceipts().isPresent()) {
 208                             System.out.println(" - Read receipts: " + (
 209                                     configurationMessage.getReadReceipts().get() ? "enabled" : "disabled"
 210                             ));
 211                         }
 212                         if (configurationMessage.getLinkPreviews().isPresent()) {
 213                             System.out.println(" - Link previews: " + (
 214                                     configurationMessage.getLinkPreviews().get() ? "enabled" : "disabled"
 215                             ));
 216                         }
 217                         if (configurationMessage.getTypingIndicators().isPresent()) {
 218                             System.out.println(" - Typing indicators: " + (
 219                                     configurationMessage.getTypingIndicators().get() ? "enabled" : "disabled"
 220                             ));
 221                         }
 222                         if (configurationMessage.getUnidentifiedDeliveryIndicators().isPresent()) {
 223                             System.out.println(" - Unidentified Delivery Indicators: " + (
 224                                     configurationMessage.getUnidentifiedDeliveryIndicators().get()
 225                                             ? "enabled"
 226                                             : "disabled"
 227                             ));
 228                         }
 229                     }
 230                     if (syncMessage.getFetchType().isPresent()) {
 231                         final SignalServiceSyncMessage.FetchType fetchType = syncMessage.getFetchType().get();
 232                         System.out.println("Received sync message with fetch type: " + fetchType.toString());
 233                     }
 234                     if (syncMessage.getViewOnceOpen().isPresent()) {
 235                         final ViewOnceOpenMessage viewOnceOpenMessage = syncMessage.getViewOnceOpen().get();
 236                         System.out.println("Received sync message with view once open message:");
 237                         System.out.println(" - Sender:" + viewOnceOpenMessage.getSender().getLegacyIdentifier());
 238                         System.out.println(" - Timestamp:" + viewOnceOpenMessage.getTimestamp());
 239                     }
 240                     if (syncMessage.getStickerPackOperations().isPresent()) {
 241                         final List<StickerPackOperationMessage> stickerPackOperationMessages = syncMessage.getStickerPackOperations()
 242                                 .get();
 243                         System.out.println("Received sync message with sticker pack operations:");
 244                         for (StickerPackOperationMessage m : stickerPackOperationMessages) {
 245                             System.out.println(" - " + m.getType().toString());
 246                             if (m.getPackId().isPresent()) {
 247                                 System.out.println("   packId: " + Base64.getEncoder()
 248                                         .encodeToString(m.getPackId().get()));
 249                             }
 250                             if (m.getPackKey().isPresent()) {
 251                                 System.out.println("   packKey: " + Base64.getEncoder()
 252                                         .encodeToString(m.getPackKey().get()));
 253                             }
 254                         }
 255                     }
 256                     if (syncMessage.getMessageRequestResponse().isPresent()) {
 257                         final MessageRequestResponseMessage requestResponseMessage = syncMessage.getMessageRequestResponse()
 258                                 .get();
 259                         System.out.println("Received message request response:");
 260                         System.out.println("  Type: " + requestResponseMessage.getType());
 261                         if (requestResponseMessage.getGroupId().isPresent()) {
 262                             System.out.println("  Group id: " + Base64.getEncoder()
 263                                     .encodeToString(requestResponseMessage.getGroupId().get()));
 264                         }
 265                         if (requestResponseMessage.getPerson().isPresent()) {
 266                             System.out.println("  Person: " + requestResponseMessage.getPerson()
 267                                     .get()
 268                                     .getLegacyIdentifier());
 269                         }
 270                     }
 271                     if (syncMessage.getKeys().isPresent()) {
 272                         final KeysMessage keysMessage = syncMessage.getKeys().get();
 273                         System.out.println("Received sync message with keys:");
 274                         if (keysMessage.getStorageService().isPresent()) {
 275                             System.out.println("  With storage key length: " + keysMessage.getStorageService()
 276                                     .get()
 277                                     .serialize().length);
 278                         } else {
 279                             System.out.println("  With empty storage key");
 280                         }
 281                     }
 282                 }
 283                 if (content.getCallMessage().isPresent()) {
 284                     System.out.println("Received a call message");
 285                     SignalServiceCallMessage callMessage = content.getCallMessage().get();
 286                     if (callMessage.getAnswerMessage().isPresent()) {
 287                         AnswerMessage answerMessage = callMessage.getAnswerMessage().get();
 288                         System.out.println("Answer message: " + answerMessage.getId() + ": " + answerMessage.getSdp());
 289                     }
 290                     if (callMessage.getBusyMessage().isPresent()) {
 291                         BusyMessage busyMessage = callMessage.getBusyMessage().get();
 292                         System.out.println("Busy message: " + busyMessage.getId());
 293                     }
 294                     if (callMessage.getHangupMessage().isPresent()) {
 295                         HangupMessage hangupMessage = callMessage.getHangupMessage().get();
 296                         System.out.println("Hangup message: " + hangupMessage.getId());
 297                     }
 298                     if (callMessage.getIceUpdateMessages().isPresent()) {
 299                         List<IceUpdateMessage> iceUpdateMessages = callMessage.getIceUpdateMessages().get();
 300                         for (IceUpdateMessage iceUpdateMessage : iceUpdateMessages) {
 301                             System.out.println("Ice update message: "
 302                                     + iceUpdateMessage.getId()
 303                                     + ", sdp: "
 304                                     + iceUpdateMessage.getSdp());
 305                         }
 306                     }
 307                     if (callMessage.getOfferMessage().isPresent()) {
 308                         OfferMessage offerMessage = callMessage.getOfferMessage().get();
 309                         System.out.println("Offer message: " + offerMessage.getId() + ": " + offerMessage.getSdp());
 310                     }
 311                 }
 312                 if (content.getReceiptMessage().isPresent()) {
 313                     System.out.println("Received a receipt message");
 314                     SignalServiceReceiptMessage receiptMessage = content.getReceiptMessage().get();
 315                     System.out.println(" - When: " + DateUtils.formatTimestamp(receiptMessage.getWhen()));
 316                     if (receiptMessage.isDeliveryReceipt()) {
 317                         System.out.println(" - Is delivery receipt");
 318                     }
 319                     if (receiptMessage.isReadReceipt()) {
 320                         System.out.println(" - Is read receipt");
 321                     }
 322                     System.out.println(" - Timestamps:");
 323                     for (long timestamp : receiptMessage.getTimestamps()) {
 324                         System.out.println("    " + DateUtils.formatTimestamp(timestamp));
 325                     }
 326                 }
 327                 if (content.getTypingMessage().isPresent()) {
 328                     System.out.println("Received a typing message");
 329                     SignalServiceTypingMessage typingMessage = content.getTypingMessage().get();
 330                     System.out.println(" - Action: " + typingMessage.getAction());
 331                     System.out.println(" - Timestamp: " + DateUtils.formatTimestamp(typingMessage.getTimestamp()));
 332                     if (typingMessage.getGroupId().isPresent()) {
 333                         System.out.println(" - Group Info:");
 334                         final GroupId groupId = GroupId.unknownVersion(typingMessage.getGroupId().get());
 335                         System.out.println("   Id: " + groupId.toBase64());
 336                         GroupInfo group = m.getGroup(groupId);
 337                         if (group != null) {
 338                             System.out.println("   Name: " + group.getTitle());
 339                         } else {
 340                             System.out.println("   Name: <Unknown group>");
 341                         }
 342                     }
 343                 }
 344             }
 345         } else {
 346             System.out.println("Unknown message received.");
 347         }
 348         System.out.println();
 349     }
 350
 351     private void handleSignalServiceDataMessage(SignalServiceDataMessage message) {
 352         System.out.println("Message timestamp: " + DateUtils.formatTimestamp(message.getTimestamp()));
 353         if (message.isViewOnce()) {
 354             System.out.println("=VIEW ONCE=");
 355         }
 356
 357         if (message.getBody().isPresent()) {
 358             System.out.println("Body: " + message.getBody().get());
 359         }
 360         if (message.getGroupContext().isPresent()) {
 361             System.out.println("Group info:");
 362             final SignalServiceGroupContext groupContext = message.getGroupContext().get();
 363             final GroupId groupId = GroupUtils.getGroupId(groupContext);
 364             if (groupContext.getGroupV1().isPresent()) {
 365                 SignalServiceGroup groupInfo = groupContext.getGroupV1().get();
 366                 System.out.println("  Id: " + groupId.toBase64());
 367                 if (groupInfo.getType() == SignalServiceGroup.Type.UPDATE && groupInfo.getName().isPresent()) {
 368                     System.out.println("  Name: " + groupInfo.getName().get());
 369                 } else {
 370                     GroupInfo group = m.getGroup(groupId);
 371                     if (group != null) {
 372                         System.out.println("  Name: " + group.getTitle());
 373                     } else {
 374                         System.out.println("  Name: <Unknown group>");
 375                     }
 376                 }
 377                 System.out.println("  Type: " + groupInfo.getType());
 378                 if (groupInfo.getMembers().isPresent()) {
 379                     for (SignalServiceAddress member : groupInfo.getMembers().get()) {
 380                         System.out.println("  Member: " + member.getLegacyIdentifier());
 381                     }
 382                 }
 383                 if (groupInfo.getAvatar().isPresent()) {
 384                     System.out.println("  Avatar:");
 385                     printAttachment(groupInfo.getAvatar().get());
 386                 }
 387             } else if (groupContext.getGroupV2().isPresent()) {
 388                 final SignalServiceGroupV2 groupInfo = groupContext.getGroupV2().get();
 389                 System.out.println("  Id: " + groupId.toBase64());
 390                 GroupInfo group = m.getGroup(groupId);
 391                 if (group != null) {
 392                     System.out.println("  Name: " + group.getTitle());
 393                 } else {
 394                     System.out.println("  Name: <Unknown group>");
 395                 }
 396                 System.out.println("  Revision: " + groupInfo.getRevision());
 397                 System.out.println("  Master key length: " + groupInfo.getMasterKey().serialize().length);
 398                 System.out.println("  Has signed group change: " + groupInfo.hasSignedGroupChange());
 399             }
 400         }
 401         if (message.getPreviews().isPresent()) {
 402             final List<SignalServiceDataMessage.Preview> previews = message.getPreviews().get();
 403             System.out.println("Previews:");
 404             for (SignalServiceDataMessage.Preview preview : previews) {
 405                 System.out.println(" - Title: " + preview.getTitle());
 406                 System.out.println(" - Url: " + preview.getUrl());
 407                 if (preview.getImage().isPresent()) {
 408                     printAttachment(preview.getImage().get());
 409                 }
 410             }
 411         }
 412         if (message.getSharedContacts().isPresent()) {
 413             final List<SharedContact> sharedContacts = message.getSharedContacts().get();
 414             System.out.println("Contacts:");
 415             for (SharedContact contact : sharedContacts) {
 416                 System.out.println(" - Name: " + contact.getName());
 417                 // TODO show or store rest of the contact info
 418             }
 419         }
 420         if (message.getSticker().isPresent()) {
 421             final SignalServiceDataMessage.Sticker sticker = message.getSticker().get();
 422             System.out.println("Sticker:");
 423             System.out.println(" - Pack id: " + Base64.getEncoder().encodeToString(sticker.getPackId()));
 424             System.out.println(" - Pack key: " + Base64.getEncoder().encodeToString(sticker.getPackKey()));
 425             System.out.println(" - Sticker id: " + sticker.getStickerId());
 426             // TODO also download sticker image ??
 427         }
 428         if (message.isEndSession()) {
 429             System.out.println("Is end session");
 430         }
 431         if (message.isExpirationUpdate()) {
 432             System.out.println("Is Expiration update: " + message.isExpirationUpdate());
 433         }
 434         if (message.getExpiresInSeconds() > 0) {
 435             System.out.println("Expires in: " + message.getExpiresInSeconds() + " seconds");
 436         }
 437         if (message.getProfileKey().isPresent()) {
 438             System.out.println("Profile key update, key length:" + message.getProfileKey().get().length);
 439         }
 440
 441         if (message.getReaction().isPresent()) {
 442             final SignalServiceDataMessage.Reaction reaction = message.getReaction().get();
 443             System.out.println("Reaction:");
 444             System.out.println(" - Emoji: " + reaction.getEmoji());
 445             System.out.println(" - Target author: " + m.resolveSignalServiceAddress(reaction.getTargetAuthor())
 446                     .getLegacyIdentifier());
 447             System.out.println(" - Target timestamp: " + reaction.getTargetSentTimestamp());
 448             System.out.println(" - Is remove: " + reaction.isRemove());
 449         }
 450
 451         if (message.getQuote().isPresent()) {
 452             SignalServiceDataMessage.Quote quote = message.getQuote().get();
 453             System.out.println("Quote: (" + quote.getId() + ")");
 454             System.out.println(" Author: " + m.resolveSignalServiceAddress(quote.getAuthor()).getLegacyIdentifier());
 455             System.out.println(" Text: " + quote.getText());
 456             if (quote.getMentions() != null && quote.getMentions().size() > 0) {
 457                 System.out.println(" Mentions: ");
 458                 for (SignalServiceDataMessage.Mention mention : quote.getMentions()) {
 459                     printMention(mention, m);
 460                 }
 461             }
 462             if (quote.getAttachments().size() > 0) {
 463                 System.out.println(" Attachments: ");
 464                 for (SignalServiceDataMessage.Quote.QuotedAttachment attachment : quote.getAttachments()) {
 465                     System.out.println(" - Filename: " + attachment.getFileName());
 466                     System.out.println("   Type: " + attachment.getContentType());
 467                     System.out.println("   Thumbnail:");
 468                     if (attachment.getThumbnail() != null) {
 469                         printAttachment(attachment.getThumbnail());
 470                     }
 471                 }
 472             }
 473         }
 474
 475         if (message.getRemoteDelete().isPresent()) {
 476             final SignalServiceDataMessage.RemoteDelete remoteDelete = message.getRemoteDelete().get();
 477             System.out.println("Remote delete message: timestamp = " + remoteDelete.getTargetSentTimestamp());
 478         }
 479         if (message.getMentions().isPresent()) {
 480             System.out.println("Mentions: ");
 481             for (SignalServiceDataMessage.Mention mention : message.getMentions().get()) {
 482                 printMention(mention, m);
 483             }
 484         }
 485
 486         if (message.getAttachments().isPresent()) {
 487             System.out.println("Attachments: ");
 488             for (SignalServiceAttachment attachment : message.getAttachments().get()) {
 489                 printAttachment(attachment);
 490             }
 491         }
 492     }
 493
 494     private void printMention(SignalServiceDataMessage.Mention mention, Manager m) {
 495         System.out.println("- " + m.resolveSignalServiceAddress(new SignalServiceAddress(mention.getUuid(), null))
 496                 .getLegacyIdentifier() + ": " + mention.getStart() + " (length: " + mention.getLength() + ")");
 497     }
 498
 499     private void printAttachment(SignalServiceAttachment attachment) {
 500         System.out.println("- " + attachment.getContentType() + " (" + (attachment.isPointer() ? "Pointer" : "") + (
 501                 attachment.isStream() ? "Stream" : ""
 502         ) + ")");
 503         if (attachment.isPointer()) {
 504             final SignalServiceAttachmentPointer pointer = attachment.asPointer();
 505             System.out.println("  Id: " + pointer.getRemoteId() + " Key length: " + pointer.getKey().length);
 506             System.out.println("  Filename: " + (
 507                     pointer.getFileName().isPresent() ? pointer.getFileName().get() : "-"
 508             ));
 509             System.out.println("  Size: " + (
 510                     pointer.getSize().isPresent() ? pointer.getSize().get() + " bytes" : "<unavailable>"
 511             ) + (
 512                     pointer.getPreview().isPresent() ? " (Preview is available: "
 513                             + pointer.getPreview().get().length
 514                             + " bytes)" : ""
 515             ));
 516             System.out.println("  Voice note: " + (pointer.getVoiceNote() ? "yes" : "no"));
 517             System.out.println("  Dimensions: " + pointer.getWidth() + "x" + pointer.getHeight());
 518             File file = m.getAttachmentFile(pointer.getRemoteId());
 519             if (file.exists()) {
 520                 System.out.println("  Stored plaintext in: " + file);
 521             }
 522         }
 523     }
 524 }