From 55e47d69dbe6a206573eadc25469cd38df9901ac Mon Sep 17 00:00:00 2001
From: Iruwen <11341130+Iruwen@users.noreply.github.com>
Date: Thu, 6 Mar 2025 14:48:23 +0100
Subject: [PATCH] Enable room summary API (MSC3266) support for Synapse to
support Element X clients
---
roles/custom/matrix-synapse/defaults/main.yml | 9 +++++++++
.../matrix-synapse/templates/synapse/homeserver.yaml.j2 | 3 +++
2 files changed, 12 insertions(+)
diff --git a/roles/custom/matrix-synapse/defaults/main.yml b/roles/custom/matrix-synapse/defaults/main.yml
index cd9cfa7ea..7742f4764 100644
--- a/roles/custom/matrix-synapse/defaults/main.yml
+++ b/roles/custom/matrix-synapse/defaults/main.yml
@@ -1252,6 +1252,15 @@ matrix_synapse_experimental_features_msc4108_enabled: false
################################################################################
+# Controls whether to enable the "room summary API" experimental feature.
+# See https://github.com/matrix-org/matrix-spec-proposals/pull/3266
+# Despite being experimental, this feature is mandatory for the next-generation Element X clients, which is why it is enabled by default:
+# https://github.com/element-hq/element-x-ios/issues/3713#issuecomment-2620958291
+# If you're worried about the privacy implications of this unauthenticated API, see:
+# https://github.com/deepbluev7/matrix-doc/blob/room-summaries/proposals/3266-room-summary.md#client-server-api
+# Set this to false if you still want to disable to API for some reason. Note that doing so breaks Element X compatibility though.
+matrix_synapse_experimental_features_msc3266_enabled: true
+
# Enable this to activate the REST auth password provider module.
# See: https://github.com/ma1uta/matrix-synapse-rest-password-provider
matrix_synapse_ext_password_provider_rest_auth_enabled: false
diff --git a/roles/custom/matrix-synapse/templates/synapse/homeserver.yaml.j2 b/roles/custom/matrix-synapse/templates/synapse/homeserver.yaml.j2
index aecaf0301..dbfbdffaf 100644
--- a/roles/custom/matrix-synapse/templates/synapse/homeserver.yaml.j2
+++ b/roles/custom/matrix-synapse/templates/synapse/homeserver.yaml.j2
@@ -2984,5 +2984,8 @@ experimental_features:
{% if matrix_synapse_experimental_features_msc4108_enabled %}
msc4108_enabled: true
{% endif %}
+ {% if matrix_synapse_experimental_features_msc3266_enabled %}
+ msc3266_enabled: true
+ {% endif %}
# vim:ft=yaml