Add plugin APIs for implementations of custom event rules.

1 files changed, 13 insertions, 0 deletions

diff --git a/docs/sample_config.yaml b/docs/sample_config.yaml
index 4d7e6f3eb5..bd80d97a93 100644
--- a/docs/sample_config.yaml
+++ b/docs/sample_config.yaml
@@ -1351,3 +1351,16 @@ password_config:
 #    alias: "*"
 #    room_id: "*"
 #    action: allow
+
+
+# Server admins can define a Python module that implements extra rules for
+# allowing or denying incoming events. In order to work, this module needs to
+# override the methods defined in synapse/events/third_party_rules.py.
+#
+# This feature is designed to be used in closed federations only, where each
+# participating server enforces the same rules.
+#
+#third_party_event_rules:
+#  module: "my_custom_project.SuperRulesSet"
+#  config:
+#    example_option: 'things'