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