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-rw-r--r--synapse/handlers/room.py7
1 files changed, 7 insertions, 0 deletions
diff --git a/synapse/handlers/room.py b/synapse/handlers/room.py
index df3e0cff67..3d10e4b2d9 100644
--- a/synapse/handlers/room.py
+++ b/synapse/handlers/room.py
@@ -645,6 +645,13 @@ class RoomCreationHandler(BaseHandler):
                 check_membership=False,
             )
 
+        if is_public:
+            if not self.config.is_publishing_room_allowed(user_id, room_id, room_alias):
+                # Lets just return a generic message, as there may be all sorts of
+                # reasons why we said no. TODO: Allow configurable error messages
+                # per alias creation rule?
+                raise SynapseError(403, "Not allowed to publish room")
+
         preset_config = config.get(
             "preset",
             RoomCreationPreset.PRIVATE_CHAT