From 9c053dce8d5d9ad58b0e4646747ce51db2a443b3 Mon Sep 17 00:00:00 2001
From: Christian Schneppe <christian@pix-art.de>
Date: Fri, 13 Apr 2018 22:03:54 +0200
Subject: make receipt handling work with out of order receipts

---
 .../java/de/pixart/messenger/parser/MessageParser.java    |  6 +++---
 .../pixart/messenger/services/MessageArchiveService.java  | 15 ++++++++++++++-
 2 files changed, 17 insertions(+), 4 deletions(-)

(limited to 'src/main/java/de')

diff --git a/src/main/java/de/pixart/messenger/parser/MessageParser.java b/src/main/java/de/pixart/messenger/parser/MessageParser.java
index 33ef59ef1..0f8e23aa6 100644
--- a/src/main/java/de/pixart/messenger/parser/MessageParser.java
+++ b/src/main/java/de/pixart/messenger/parser/MessageParser.java
@@ -804,7 +804,7 @@ public class MessageParser extends AbstractParser implements OnMessagePacketRece
             String id = received.getAttribute("id");
             if (packet.fromAccount(account)) {
                 if (query != null && id != null && packet.getTo() != null) {
-                    query.pendingReceiptRequests.remove(new ReceiptRequest(packet.getTo(), id));
+                    query.removePendingReceiptRequest(new ReceiptRequest(packet.getTo(), id));
                 }
             } else {
                 mXmppConnectionService.markMessage(account, from.asBareJid(), received.getAttribute("id"), Message.STATUS_SEND_RECEIVED);
@@ -899,9 +899,9 @@ public class MessageParser extends AbstractParser implements OnMessagePacketRece
                         packet.getType());
                 mXmppConnectionService.sendMessagePacket(account, receipt);
             }
-        } else {
+        } else { //just catchup??
             if (request) {
-                query.pendingReceiptRequests.add(new ReceiptRequest(packet.getFrom(), packet.getId()));
+                query.addPendingReceiptRequest(new ReceiptRequest(packet.getFrom(), packet.getId()));
             }
         }
     }
diff --git a/src/main/java/de/pixart/messenger/services/MessageArchiveService.java b/src/main/java/de/pixart/messenger/services/MessageArchiveService.java
index 7158c3b1f..a20c7fc49 100644
--- a/src/main/java/de/pixart/messenger/services/MessageArchiveService.java
+++ b/src/main/java/de/pixart/messenger/services/MessageArchiveService.java
@@ -323,6 +323,7 @@ public class MessageArchiveService implements OnAdvancedStreamFeaturesLoaded {
 
     private void processPostponed(Query query) {
         query.account.getAxolotlService().processPostponed();
+        query.pendingReceiptRequests.removeAll(query.receiptRequests);
         Log.d(Config.LOGTAG, query.getAccount().getJid().asBareJid() + ": found " + query.pendingReceiptRequests.size() + " pending receipt requests");
         Iterator<ReceiptRequest> iterator = query.pendingReceiptRequests.iterator();
         while (iterator.hasNext()) {
@@ -359,7 +360,8 @@ public class MessageArchiveService implements OnAdvancedStreamFeaturesLoaded {
     }
 
     public class Query {
-        public HashSet<ReceiptRequest> pendingReceiptRequests = new HashSet<>();
+        private HashSet<ReceiptRequest> pendingReceiptRequests = new HashSet<>();
+        private HashSet<ReceiptRequest> receiptRequests = new HashSet<>();
         private int totalCount = 0;
         private int actualCount = 0;
         private int actualInThisQuery = 0;
@@ -398,11 +400,22 @@ public class MessageArchiveService implements OnAdvancedStreamFeaturesLoaded {
             query.totalCount = totalCount;
             query.actualCount = actualCount;
             query.pendingReceiptRequests = pendingReceiptRequests;
+            query.receiptRequests = receiptRequests;
             query.callback = callback;
             query.catchup = catchup;
             return query;
         }
 
+        public void removePendingReceiptRequest(ReceiptRequest receiptRequest) {
+            if (!this.pendingReceiptRequests.remove(receiptRequest)) {
+                this.receiptRequests.add(receiptRequest);
+            }
+        }
+
+        public void addPendingReceiptRequest(ReceiptRequest receiptRequest) {
+            this.pendingReceiptRequests.add(receiptRequest);
+        }
+
         public boolean isLegacy() {
             if (conversation == null || conversation.getMode() == Conversation.MODE_SINGLE) {
                 return account.getXmppConnection().getFeatures().mamLegacy();
-- 
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