+ } else if (content != null) {
+ final SignalServiceAddress sender = !envelope.isUnidentifiedSender() && envelope.hasSource() ? envelope.getSourceAddress() : content.getSender();
+ if (content.getReceiptMessage().isPresent()) {
+ final SignalServiceReceiptMessage receiptMessage = content.getReceiptMessage().get();
+ if (receiptMessage.isDeliveryReceipt()) {
+ for (long timestamp : receiptMessage.getTimestamps()) {
+ try {
+ conn.sendMessage(new Signal.ReceiptReceived(
+ objectPath,
+ timestamp,
+ sender.getLegacyIdentifier()
+ ));
+ } catch (DBusException e) {
+ e.printStackTrace();
+ }
+ }
+ }
+ } else if (content.getDataMessage().isPresent()) {
+ SignalServiceDataMessage message = content.getDataMessage().get();
+
+ if (!message.isEndSession() &&
+ !(message.getGroupContext().isPresent() &&
+ message.getGroupContext().get().getGroupV1Type() != SignalServiceGroup.Type.DELIVER)) {
+ try {
+ conn.sendMessage(new Signal.MessageReceived(
+ objectPath,
+ message.getTimestamp(),
+ sender.getLegacyIdentifier(),
+ message.getGroupContext().isPresent() && message.getGroupContext().get().getGroupV1().isPresent()
+ ? message.getGroupContext().get().getGroupV1().get().getGroupId() : new byte[0],
+ message.getBody().isPresent() ? message.getBody().get() : "",
+ JsonDbusReceiveMessageHandler.getAttachments(message, m)));
+ } catch (DBusException e) {
+ e.printStackTrace();
+ }
+ }
+ } else if (content.getSyncMessage().isPresent()) {
+ SignalServiceSyncMessage sync_message = content.getSyncMessage().get();
+ if (sync_message.getSent().isPresent()) {
+ SentTranscriptMessage transcript = sync_message.getSent().get();
+
+ if (transcript.getDestination().isPresent() || transcript.getMessage().getGroupContext().isPresent()) {
+ SignalServiceDataMessage message = transcript.getMessage();