From c1815bf5a10629efc0f7f2b1c073e14d5b0e8f57 Mon Sep 17 00:00:00 2001
From: Andrew Morgan <1342360+anoadragon453@users.noreply.github.com>
Date: Tue, 11 Feb 2025 14:39:12 +0700
Subject: [PATCH] Add `rc_presence` ratelimiting config to demo/start.sh
 (#18145)

Missed in https://github.com/element-hq/synapse/pull/18000
---
 changelog.d/18145.bugfix | 1 +
 demo/start.sh            | 4 ++++
 2 files changed, 5 insertions(+)
 create mode 100644 changelog.d/18145.bugfix

diff --git a/changelog.d/18145.bugfix b/changelog.d/18145.bugfix
new file mode 100644
index 0000000000..ad9d353834
--- /dev/null
+++ b/changelog.d/18145.bugfix
@@ -0,0 +1 @@
+Add rate limit `rc_presence.per_user`. This prevents load from excessive presence updates sent by clients via sync api. Also rate limit `/_matrix/client/v3/presence` as per the spec. Contributed by @rda0.
\ No newline at end of file
diff --git a/demo/start.sh b/demo/start.sh
index 06ec6f985f..7636c41f1f 100755
--- a/demo/start.sh
+++ b/demo/start.sh
@@ -138,6 +138,10 @@ for port in 8080 8081 8082; do
 			  per_user:
 			    per_second: 1000
 			    burst_count: 1000
+			rc_presence:
+			  per_user:
+			    per_second: 1000
+			    burst_count: 1000
 			RC
 			)
             echo "${ratelimiting}" >> "$port.config"