use server timestamp to sort the open group messages

src/org/thoughtcrime/securesms/database/MmsDatabase.java

@@ -816,7 +816,8 @@ public class MmsDatabase extends MessagingDatabase {
 
   private Optional<InsertResult> insertMessageInbox(IncomingMediaMessage retrieved,
                                                     String contentLocation,
-                                                    long threadId, long mailbox)
+                                                    long threadId, long mailbox,
+                                                    long serverTimestamp)
       throws MmsException
   {
     if (threadId == -1 || retrieved.isGroupMessage()) {
@@ -839,7 +840,13 @@ public class MmsDatabase extends MessagingDatabase {
     contentValues.put(THREAD_ID, threadId);
     contentValues.put(CONTENT_LOCATION, contentLocation);
     contentValues.put(STATUS, Status.DOWNLOAD_INITIALIZED);
-    contentValues.put(DATE_RECEIVED, retrieved.getSentTimeMillis()); // Loki - This is important due to how we handle GIFs
+    // If the messages are from open groups, there will be a serverTimestamp,
+    // we use current time like a sortId of iOS as the receive time.
+    // Since the messages has been sorted by server timestamp before they are processed,
+    // the order here by actual receiving time should be correct.
+    long receiveTimestamp = System.currentTimeMillis();
+    if (serverTimestamp == 0) { receiveTimestamp = retrieved.getSentTimeMillis(); }
+    contentValues.put(DATE_RECEIVED, receiveTimestamp); // Loki - This is important due to how we handle GIFs
     contentValues.put(PART_COUNT, retrieved.getAttachments().size());
     contentValues.put(SUBSCRIPTION_ID, retrieved.getSubscriptionId());
     contentValues.put(EXPIRES_IN, retrieved.getExpiresIn());
@@ -893,11 +900,11 @@ public class MmsDatabase extends MessagingDatabase {
       type |= Types.EXPIRATION_TIMER_UPDATE_BIT;
     }
 
-    return insertMessageInbox(retrieved, contentLocation, threadId, type);
+    return insertMessageInbox(retrieved, contentLocation, threadId, type, 0);
   }
 
-  public Optional<InsertResult> insertSecureDecryptedMessageInbox(IncomingMediaMessage retrieved, long threadId)
-      throws MmsException
+  public Optional<InsertResult> insertSecureDecryptedMessageInbox(IncomingMediaMessage retrieved, long threadId, long serverTimestamp)
+          throws MmsException
   {
     long type = Types.BASE_INBOX_TYPE | Types.SECURE_MESSAGE_BIT;
 
@@ -909,7 +916,13 @@ public class MmsDatabase extends MessagingDatabase {
       type |= Types.EXPIRATION_TIMER_UPDATE_BIT;
     }
 
-    return insertMessageInbox(retrieved, "", threadId, type);
+    return insertMessageInbox(retrieved, "", threadId, type, 0);
+  }
+
+  public Optional<InsertResult> insertSecureDecryptedMessageInbox(IncomingMediaMessage retrieved, long threadId)
+          throws MmsException
+  {
+    return insertSecureDecryptedMessageInbox(retrieved, threadId, 0);
   }
 
   public Pair<Long, Long> insertMessageInbox(@NonNull NotificationInd notification, int subscriptionId) {

src/org/thoughtcrime/securesms/database/SmsDatabase.java

@@ -580,7 +580,7 @@ public class SmsDatabase extends MessagingDatabase {
     return new Pair<>(messageId, threadId);
   }
 
-  protected Optional<InsertResult> insertMessageInbox(IncomingTextMessage message, long type) {
+  protected Optional<InsertResult> insertMessageInbox(IncomingTextMessage message, long type, long serverTimestamp) {
     if (message.isJoined()) {
       type = (type & (Types.TOTAL_MASK - Types.BASE_TYPE_MASK)) | Types.JOINED_TYPE;
     } else if (message.isPreKeyBundle()) {
@@ -625,7 +625,13 @@ public class SmsDatabase extends MessagingDatabase {
     ContentValues values = new ContentValues(6);
     values.put(ADDRESS, message.getSender().serialize());
     values.put(ADDRESS_DEVICE_ID,  message.getSenderDeviceId());
-    values.put(DATE_RECEIVED, message.getSentTimestampMillis()); // Loki - This is important due to how we handle GIFs
+    // If the messages are from open groups, there will be a serverTimestamp,
+    // we use current time like a sortId of iOS as the receive time.
+    // Since the messages has been sorted by server timestamp before they are processed,
+    // the order here by actual receiving time should be correct.
+    long receiveTimestamp = System.currentTimeMillis();
+    if (serverTimestamp == 0) { receiveTimestamp = message.getSentTimestampMillis(); }
+    values.put(DATE_RECEIVED, receiveTimestamp); // Loki - This is important due to how we handle GIFs
     values.put(DATE_SENT, message.getSentTimestampMillis());
     values.put(PROTOCOL, message.getProtocol());
     values.put(READ, unread ? 0 : 1);
@@ -672,7 +678,11 @@ public class SmsDatabase extends MessagingDatabase {
   }
 
   public Optional<InsertResult> insertMessageInbox(IncomingTextMessage message) {
-    return insertMessageInbox(message, Types.BASE_INBOX_TYPE);
+    return insertMessageInbox(message, Types.BASE_INBOX_TYPE, 0);
+  }
+
+  public Optional<InsertResult> insertMessageInbox(IncomingTextMessage message, long serverTimestamp) {
+    return insertMessageInbox(message, Types.BASE_INBOX_TYPE, serverTimestamp);
   }
 
   public long insertMessageOutbox(long threadId, OutgoingTextMessage message,

src/org/thoughtcrime/securesms/jobs/PushDecryptJob.java

@@ -755,7 +755,11 @@ public class PushDecryptJob extends BaseJob implements InjectableType {
     Optional<InsertResult> insertResult;
 
     try {
-      insertResult = database.insertSecureDecryptedMessageInbox(mediaMessage, -1);
+      if (message.isGroupMessage()) {
+        insertResult = database.insertSecureDecryptedMessageInbox(mediaMessage, -1, content.getTimestamp());
+      } else {
+        insertResult = database.insertSecureDecryptedMessageInbox(mediaMessage, -1);
+      }
 
       if (insertResult.isPresent()) {
         List<DatabaseAttachment> allAttachments     = DatabaseFactory.getAttachmentDatabase(context).getAttachmentsForMessage(insertResult.get().getMessageId());
@@ -952,7 +956,12 @@ public class PushDecryptJob extends BaseJob implements InjectableType {
       if (textMessage.getMessageBody().length() == 0) { return; }
 
       // Insert the message into the database
-      Optional<InsertResult> insertResult = database.insertMessageInbox(textMessage);
+      Optional<InsertResult> insertResult;
+      if (message.isGroupMessage()) {
+        insertResult = database.insertMessageInbox(textMessage, content.getTimestamp());
+      } else {
+        insertResult = database.insertMessageInbox(textMessage);
+      }
 
       if (insertResult.isPresent()) {
         threadId = insertResult.get().getThreadId();

src/org/thoughtcrime/securesms/loki/api/PublicChatPoller.kt

@@ -166,7 +166,7 @@ class PublicChatPoller(private val context: Context, private val group: PublicCh
             }
             val senderHexEncodedPublicKey = masterHexEncodedPublicKey ?: message.senderPublicKey
             val serviceDataMessage = getDataMessage(message)
-            val serviceContent = SignalServiceContent(serviceDataMessage, senderHexEncodedPublicKey, SignalServiceAddress.DEFAULT_DEVICE_ID, message.timestamp, false, false)
+            val serviceContent = SignalServiceContent(serviceDataMessage, senderHexEncodedPublicKey, SignalServiceAddress.DEFAULT_DEVICE_ID, message.serverTimestamp, false, false)
             if (serviceDataMessage.quote.isPresent || (serviceDataMessage.attachments.isPresent && serviceDataMessage.attachments.get().size > 0) || serviceDataMessage.previews.isPresent) {
                 PushDecryptJob(context).handleMediaMessage(serviceContent, serviceDataMessage, Optional.absent(), Optional.of(message.serverID))
             } else {