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-rw-r--r--synapse/handlers/directory.py10
-rw-r--r--synapse/handlers/room.py9
2 files changed, 19 insertions, 0 deletions
diff --git a/synapse/handlers/directory.py b/synapse/handlers/directory.py
index 6f15c68240..ad5683d251 100644
--- a/synapse/handlers/directory.py
+++ b/synapse/handlers/directory.py
@@ -46,6 +46,7 @@ class DirectoryHandler(BaseHandler):
         self.config = hs.config
         self.enable_room_list_search = hs.config.enable_room_list_search
         self.require_membership = hs.config.require_membership_for_aliases
+        self.third_party_event_rules = hs.get_third_party_event_rules()
 
         self.federation = hs.get_federation_client()
         hs.get_federation_registry().register_query_handler(
@@ -454,6 +455,15 @@ class DirectoryHandler(BaseHandler):
                 # per alias creation rule?
                 raise SynapseError(403, "Not allowed to publish room")
 
+            # Check if publishing is blocked by a third party module
+            allowed_by_third_party_rules = await (
+                self.third_party_event_rules.check_visibility_can_be_modified(
+                    room_id, visibility
+                )
+            )
+            if not allowed_by_third_party_rules:
+                raise SynapseError(403, "Not allowed to publish room")
+
         await self.store.set_room_is_public(room_id, making_public)
 
     async def edit_published_appservice_room_list(
diff --git a/synapse/handlers/room.py b/synapse/handlers/room.py
index f1a6699cd4..f14f791586 100644
--- a/synapse/handlers/room.py
+++ b/synapse/handlers/room.py
@@ -681,6 +681,15 @@ class RoomCreationHandler(BaseHandler):
             creator_id=user_id, is_public=is_public, room_version=room_version,
         )
 
+        # Check whether this visibility value is blocked by a third party module
+        allowed_by_third_party_rules = await (
+            self.third_party_event_rules.check_visibility_can_be_modified(
+                room_id, visibility
+            )
+        )
+        if not allowed_by_third_party_rules:
+            raise SynapseError(403, "Room visibility value not allowed.")
+
         directory_handler = self.hs.get_handlers().directory_handler
         if room_alias:
             await directory_handler.create_association(