diff options
Diffstat (limited to 'synapse/handlers/sliding_sync.py')
| -rw-r--r-- | synapse/handlers/sliding_sync.py | 118 |
1 files changed, 112 insertions, 6 deletions
diff --git a/synapse/handlers/sliding_sync.py b/synapse/handlers/sliding_sync.py index de4f33abb8..78fb66d6e2 100644 --- a/synapse/handlers/sliding_sync.py +++ b/synapse/handlers/sliding_sync.py @@ -22,7 +22,7 @@ from typing import TYPE_CHECKING, AbstractSet, Dict, List, Optional from immutabledict import immutabledict -from synapse.api.constants import Membership +from synapse.api.constants import AccountDataTypes, Membership from synapse.events import EventBase from synapse.types import Requester, RoomStreamToken, StreamToken, UserID from synapse.types.handlers import OperationType, SlidingSyncConfig, SlidingSyncResult @@ -69,9 +69,19 @@ class SlidingSyncHandler: from_token: Optional[StreamToken] = None, timeout_ms: int = 0, ) -> SlidingSyncResult: - """Get the sync for a client if we have new data for it now. Otherwise + """ + Get the sync for a client if we have new data for it now. Otherwise wait for new data to arrive on the server. If the timeout expires, then return an empty sync result. + + Args: + requester: The user making the request + sync_config: Sync configuration + from_token: The point in the stream to sync from. Token of the end of the + previous batch. May be `None` if this is the initial sync request. + timeout_ms: The time in milliseconds to wait for new data to arrive. If 0, + we will immediately but there might not be any new data so we just return an + empty response. """ # If the user is not part of the mau group, then check that limits have # not been exceeded (if not part of the group by this point, almost certain @@ -143,6 +153,14 @@ class SlidingSyncHandler: """ Generates the response body of a Sliding Sync result, represented as a `SlidingSyncResult`. + + We fetch data according to the token range (> `from_token` and <= `to_token`). + + Args: + sync_config: Sync configuration + to_token: The point in the stream to sync up to. + from_token: The point in the stream to sync from. Token of the end of the + previous batch. May be `None` if this is the initial sync request. """ user_id = sync_config.user.to_string() app_service = self.store.get_app_service_by_user_id(user_id) @@ -163,11 +181,12 @@ class SlidingSyncHandler: lists: Dict[str, SlidingSyncResult.SlidingWindowList] = {} if sync_config.lists: for list_key, list_config in sync_config.lists.items(): - # TODO: Apply filters - # - # TODO: Exclude partially stated rooms unless the `required_state` has - # `["m.room.member", "$LAZY"]` + # Apply filters filtered_room_ids = room_id_set + if list_config.filters is not None: + filtered_room_ids = await self.filter_rooms( + sync_config.user, room_id_set, list_config.filters, to_token + ) # TODO: Apply sorts sorted_room_ids = sorted(filtered_room_ids) @@ -217,6 +236,12 @@ class SlidingSyncHandler: `forgotten` flag to the `room_memberships` table in Synapse. There isn't a way to tell when a room was forgotten at the moment so we can't factor it into the from/to range. + + + Args: + user: User to fetch rooms for + to_token: The token to fetch rooms up to. + from_token: The point in the stream to sync from. """ user_id = user.to_string() @@ -439,3 +464,84 @@ class SlidingSyncHandler: sync_room_id_set.add(room_id) return sync_room_id_set + + async def filter_rooms( + self, + user: UserID, + room_id_set: AbstractSet[str], + filters: SlidingSyncConfig.SlidingSyncList.Filters, + to_token: StreamToken, + ) -> AbstractSet[str]: + """ + Filter rooms based on the sync request. + + Args: + user: User to filter rooms for + room_id_set: Set of room IDs to filter down + filters: Filters to apply + to_token: We filter based on the state of the room at this token + """ + user_id = user.to_string() + + # TODO: Apply filters + # + # TODO: Exclude partially stated rooms unless the `required_state` has + # `["m.room.member", "$LAZY"]` + + filtered_room_id_set = set(room_id_set) + + # Filter for Direct-Message (DM) rooms + if filters.is_dm is not None: + # We're using global account data (`m.direct`) instead of checking for + # `is_direct` on membership events because that property only appears for + # the invitee membership event (doesn't show up for the inviter). Account + # data is set by the client so it needs to be scrutinized. + # + # We're unable to take `to_token` into account for global account data since + # we only keep track of the latest account data for the user. + dm_map = await self.store.get_global_account_data_by_type_for_user( + user_id, AccountDataTypes.DIRECT + ) + + # Flatten out the map + dm_room_id_set = set() + if dm_map: + for room_ids in dm_map.values(): + # Account data should be a list of room IDs. Ignore anything else + if isinstance(room_ids, list): + for room_id in room_ids: + if isinstance(room_id, str): + dm_room_id_set.add(room_id) + + if filters.is_dm: + # Only DM rooms please + filtered_room_id_set = filtered_room_id_set.intersection(dm_room_id_set) + else: + # Only non-DM rooms please + filtered_room_id_set = filtered_room_id_set.difference(dm_room_id_set) + + if filters.spaces: + raise NotImplementedError() + + if filters.is_encrypted: + raise NotImplementedError() + + if filters.is_invite: + raise NotImplementedError() + + if filters.room_types: + raise NotImplementedError() + + if filters.not_room_types: + raise NotImplementedError() + + if filters.room_name_like: + raise NotImplementedError() + + if filters.tags: + raise NotImplementedError() + + if filters.not_tags: + raise NotImplementedError() + + return filtered_room_id_set |