From 698f6fa2508dbff1a4353d57da60be5d13bbd61d Mon Sep 17 00:00:00 2001 From: reivilibre Date: Wed, 6 Sep 2023 10:50:07 +0000 Subject: [PATCH] Allow modules to delete rooms. (#15997) * Allow user_id to be optional for room deletion * Add module API method to delete a room * Newsfile Signed-off-by: Olivier Wilkinson (reivilibre) * Don't worry about the case block=True && requester_user_id is None --------- Signed-off-by: Olivier Wilkinson (reivilibre) --- changelog.d/15997.misc | 1 + synapse/handlers/pagination.py | 12 ++++++++++-- synapse/handlers/room.py | 10 +++++++++- synapse/module_api/__init__.py | 13 +++++++++++++ .../callbacks/third_party_event_rules_callbacks.py | 11 ++++++++--- 5 files changed, 41 insertions(+), 6 deletions(-) create mode 100644 changelog.d/15997.misc diff --git a/changelog.d/15997.misc b/changelog.d/15997.misc new file mode 100644 index 000000000..94768c3cb --- /dev/null +++ b/changelog.d/15997.misc @@ -0,0 +1 @@ +Allow modules to delete rooms. \ No newline at end of file diff --git a/synapse/handlers/pagination.py b/synapse/handlers/pagination.py index e5ac9096c..19cf5a2b4 100644 --- a/synapse/handlers/pagination.py +++ b/synapse/handlers/pagination.py @@ -713,7 +713,7 @@ class PaginationHandler: self, delete_id: str, room_id: str, - requester_user_id: str, + requester_user_id: Optional[str], new_room_user_id: Optional[str] = None, new_room_name: Optional[str] = None, message: Optional[str] = None, @@ -732,6 +732,10 @@ class PaginationHandler: requester_user_id: User who requested the action. Will be recorded as putting the room on the blocking list. + If None, the action was not manually requested but instead + triggered automatically, e.g. through a Synapse module + or some other policy. + MUST NOT be None if block=True. new_room_user_id: If set, a new room will be created with this user ID as the creator and admin, and all users in the old room will be @@ -818,7 +822,7 @@ class PaginationHandler: def start_shutdown_and_purge_room( self, room_id: str, - requester_user_id: str, + requester_user_id: Optional[str], new_room_user_id: Optional[str] = None, new_room_name: Optional[str] = None, message: Optional[str] = None, @@ -833,6 +837,10 @@ class PaginationHandler: requester_user_id: User who requested the action and put the room on the blocking list. + If None, the action was not manually requested but instead + triggered automatically, e.g. through a Synapse module + or some other policy. + MUST NOT be None if block=True. new_room_user_id: If set, a new room will be created with this user ID as the creator and admin, and all users in the old room will be diff --git a/synapse/handlers/room.py b/synapse/handlers/room.py index 0513e28aa..7a762c851 100644 --- a/synapse/handlers/room.py +++ b/synapse/handlers/room.py @@ -1787,7 +1787,7 @@ class RoomShutdownHandler: async def shutdown_room( self, room_id: str, - requester_user_id: str, + requester_user_id: Optional[str], new_room_user_id: Optional[str] = None, new_room_name: Optional[str] = None, message: Optional[str] = None, @@ -1811,6 +1811,10 @@ class RoomShutdownHandler: requester_user_id: User who requested the action and put the room on the blocking list. + If None, the action was not manually requested but instead + triggered automatically, e.g. through a Synapse module + or some other policy. + MUST NOT be None if block=True. new_room_user_id: If set, a new room will be created with this user ID as the creator and admin, and all users in the old room will be @@ -1863,6 +1867,10 @@ class RoomShutdownHandler: # Action the block first (even if the room doesn't exist yet) if block: + if requester_user_id is None: + raise ValueError( + "shutdown_room: block=True not allowed when requester_user_id is None." + ) # This will work even if the room is already blocked, but that is # desirable in case the first attempt at blocking the room failed below. await self.store.block_room(room_id, requester_user_id) diff --git a/synapse/module_api/__init__.py b/synapse/module_api/__init__.py index 2f00a7ba2..d6efe10a2 100644 --- a/synapse/module_api/__init__.py +++ b/synapse/module_api/__init__.py @@ -1730,6 +1730,19 @@ class ModuleApi: room_alias_str = room_alias.to_string() if room_alias else None return room_id, room_alias_str + async def delete_room(self, room_id: str) -> None: + """ + Schedules the deletion of a room from Synapse's database. + + If the room is already being deleted, this method does nothing. + This method does not wait for the room to be deleted. + + Added in Synapse v1.89.0. + """ + # Future extensions to this method might want to e.g. allow use of `force_purge`. + # TODO In the future we should make sure this is persistent. + self._hs.get_pagination_handler().start_shutdown_and_purge_room(room_id, None) + async def set_displayname( self, user_id: UserID, diff --git a/synapse/module_api/callbacks/third_party_event_rules_callbacks.py b/synapse/module_api/callbacks/third_party_event_rules_callbacks.py index 911f37ba4..ecaeef351 100644 --- a/synapse/module_api/callbacks/third_party_event_rules_callbacks.py +++ b/synapse/module_api/callbacks/third_party_event_rules_callbacks.py @@ -40,7 +40,7 @@ CHECK_VISIBILITY_CAN_BE_MODIFIED_CALLBACK = Callable[ [str, StateMap[EventBase], str], Awaitable[bool] ] ON_NEW_EVENT_CALLBACK = Callable[[EventBase, StateMap[EventBase]], Awaitable] -CHECK_CAN_SHUTDOWN_ROOM_CALLBACK = Callable[[str, str], Awaitable[bool]] +CHECK_CAN_SHUTDOWN_ROOM_CALLBACK = Callable[[Optional[str], str], Awaitable[bool]] CHECK_CAN_DEACTIVATE_USER_CALLBACK = Callable[[str, bool], Awaitable[bool]] ON_PROFILE_UPDATE_CALLBACK = Callable[[str, ProfileInfo, bool, bool], Awaitable] ON_USER_DEACTIVATION_STATUS_CHANGED_CALLBACK = Callable[[str, bool, bool], Awaitable] @@ -429,12 +429,17 @@ class ThirdPartyEventRulesModuleApiCallbacks: "Failed to run module API callback %s: %s", callback, e ) - async def check_can_shutdown_room(self, user_id: str, room_id: str) -> bool: + async def check_can_shutdown_room( + self, user_id: Optional[str], room_id: str + ) -> bool: """Intercept requests to shutdown a room. If `False` is returned, the room must not be shut down. Args: - requester: The ID of the user requesting the shutdown. + user_id: The ID of the user requesting the shutdown. + If no user ID is supplied, then the room is being shut down through + some mechanism other than a user's request, e.g. through a module's + request. room_id: The ID of the room. """ for callback in self._check_can_shutdown_room_callbacks: