From 0d977bc6109f11fbfd2679e369c2809aa1ed0a74 Mon Sep 17 00:00:00 2001
From: Tulir Asokan <tulir@maunium.net>
Date: Thu, 16 Dec 2021 10:35:52 +0200
Subject: [PATCH] Don't send read receipts for fake JIDs

---
 portal.go | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/portal.go b/portal.go
index 8bdf59f..0c8686a 100644
--- a/portal.go
+++ b/portal.go
@@ -2278,7 +2278,9 @@ func (portal *Portal) HandleMatrixReadReceipt(sender *User, eventID id.EventID,
 	}
 	groupedMessages := make(map[types.JID][]types.MessageID)
 	for _, msg := range messages {
-		groupedMessages[msg.Sender] = append(groupedMessages[msg.Sender], msg.JID)
+		if !msg.IsFakeJID() {
+			groupedMessages[msg.Sender] = append(groupedMessages[msg.Sender], msg.JID)
+		}
 	}
 	portal.log.Debugfln("Sending read receipts by %s: %v", sender.JID, groupedMessages)
 	for messageSender, ids := range groupedMessages {