diff options
Diffstat (limited to '')
| -rw-r--r-- | changelog.d/11494.misc | 2 | ||||
| -rw-r--r-- | changelog.d/11515.misc | 1 | ||||
| -rw-r--r-- | synapse/handlers/sync.py | 122 |
3 files changed, 79 insertions, 46 deletions
diff --git a/changelog.d/11494.misc b/changelog.d/11494.misc index 7afd7d3a07..52cf26a4b6 100644 --- a/changelog.d/11494.misc +++ b/changelog.d/11494.misc @@ -1 +1 @@ -Add comments to various parts of the `/sync` handler. \ No newline at end of file +Refactor various parts of the `/sync` handler. \ No newline at end of file diff --git a/changelog.d/11515.misc b/changelog.d/11515.misc new file mode 100644 index 0000000000..7f9d8cd57f --- /dev/null +++ b/changelog.d/11515.misc @@ -0,0 +1 @@ +Refactor various parts of the `/sync` handler. diff --git a/synapse/handlers/sync.py b/synapse/handlers/sync.py index 97d5a26e20..f3039c3c3f 100644 --- a/synapse/handlers/sync.py +++ b/synapse/handlers/sync.py @@ -1506,16 +1506,22 @@ class SyncHandler: account_data_by_room: Dictionary of per room account data Returns: - Returns a 4-tuple whose entries are: + Returns a 4-tuple describing rooms the user has joined or left, and users who've + joined or left rooms any rooms the user is in. This gets used later in + `_generate_sync_entry_for_device_list`. + + Its entries are: - newly_joined_rooms - newly_joined_or_invited_or_knocked_users - newly_left_rooms - newly_left_users """ - # Start by fetching all ephemeral events in rooms we've joined (if required). + since_token = sync_result_builder.since_token + + # 1. Start by fetching all ephemeral events in rooms we've joined (if required). user_id = sync_result_builder.sync_config.user.to_string() block_all_room_ephemeral = ( - sync_result_builder.since_token is None + since_token is None and sync_result_builder.sync_config.filter_collection.blocks_all_room_ephemeral() ) @@ -1529,9 +1535,8 @@ class SyncHandler: ) sync_result_builder.now_token = now_token - # We check up front if anything has changed, if it hasn't then there is + # 2. We check up front if anything has changed, if it hasn't then there is # no point in going further. - since_token = sync_result_builder.since_token if not sync_result_builder.full_state: if since_token and not ephemeral_by_room and not account_data_by_room: have_changed = await self._have_rooms_changed(sync_result_builder) @@ -1544,20 +1549,8 @@ class SyncHandler: logger.debug("no-oping sync") return set(), set(), set(), set() - ignored_account_data = ( - await self.store.get_global_account_data_by_type_for_user( - AccountDataTypes.IGNORED_USER_LIST, user_id=user_id - ) - ) - - # If there is ignored users account data and it matches the proper type, - # then use it. - ignored_users: FrozenSet[str] = frozenset() - if ignored_account_data: - ignored_users_data = ignored_account_data.get("ignored_users", {}) - if isinstance(ignored_users_data, dict): - ignored_users = frozenset(ignored_users_data.keys()) - + # 3. Work out which rooms need reporting in the sync response. + ignored_users = await self._get_ignored_users(user_id) if since_token: room_changes = await self._get_rooms_changed( sync_result_builder, ignored_users @@ -1567,7 +1560,6 @@ class SyncHandler: ) else: room_changes = await self._get_all_rooms(sync_result_builder, ignored_users) - tags_by_room = await self.store.get_tags_for_user(user_id) log_kv({"rooms_changed": len(room_changes.room_entries)}) @@ -1578,6 +1570,8 @@ class SyncHandler: newly_joined_rooms = room_changes.newly_joined_rooms newly_left_rooms = room_changes.newly_left_rooms + # 4. We need to apply further processing to `room_entries` (rooms considered + # joined or archived). async def handle_room_entries(room_entry: "RoomSyncResultBuilder") -> None: logger.debug("Generating room entry for %s", room_entry.room_id) await self._generate_room_entry( @@ -1596,31 +1590,13 @@ class SyncHandler: sync_result_builder.invited.extend(invited) sync_result_builder.knocked.extend(knocked) - # Now we want to get any newly joined, invited or knocking users - newly_joined_or_invited_or_knocked_users = set() - newly_left_users = set() - if since_token: - for joined_sync in sync_result_builder.joined: - it = itertools.chain( - joined_sync.timeline.events, joined_sync.state.values() - ) - for event in it: - if event.type == EventTypes.Member: - if ( - event.membership == Membership.JOIN - or event.membership == Membership.INVITE - or event.membership == Membership.KNOCK - ): - newly_joined_or_invited_or_knocked_users.add( - event.state_key - ) - else: - prev_content = event.unsigned.get("prev_content", {}) - prev_membership = prev_content.get("membership", None) - if prev_membership == Membership.JOIN: - newly_left_users.add(event.state_key) - - newly_left_users -= newly_joined_or_invited_or_knocked_users + # 5. Work out which users have joined or left rooms we're in. We use this + # to build the device_list part of the sync response in + # `_generate_sync_entry_for_device_list`. + ( + newly_joined_or_invited_or_knocked_users, + newly_left_users, + ) = sync_result_builder.calculate_user_changes() return ( set(newly_joined_rooms), @@ -1629,6 +1605,29 @@ class SyncHandler: newly_left_users, ) + async def _get_ignored_users(self, user_id: str) -> FrozenSet[str]: + """Retrieve the users ignored by the given user from their global account_data. + + Returns an empty set if + - there is no global account_data entry for ignored_users + - there is such an entry, but it's not a JSON object. + """ + # TODO: Can we `SELECT ignored_user_id FROM ignored_users WHERE ignorer_user_id=?;` instead? + ignored_account_data = ( + await self.store.get_global_account_data_by_type_for_user( + AccountDataTypes.IGNORED_USER_LIST, user_id=user_id + ) + ) + + # If there is ignored users account data and it matches the proper type, + # then use it. + ignored_users: FrozenSet[str] = frozenset() + if ignored_account_data: + ignored_users_data = ignored_account_data.get("ignored_users", {}) + if isinstance(ignored_users_data, dict): + ignored_users = frozenset(ignored_users_data.keys()) + return ignored_users + async def _have_rooms_changed( self, sync_result_builder: "SyncResultBuilder" ) -> bool: @@ -2341,6 +2340,39 @@ class SyncResultBuilder: groups: Optional[GroupsSyncResult] = None to_device: List[JsonDict] = attr.Factory(list) + def calculate_user_changes(self) -> Tuple[Set[str], Set[str]]: + """Work out which other users have joined or left rooms we are joined to. + + This data only is only useful for an incremental sync. + + The SyncResultBuilder is not modified by this function. + """ + newly_joined_or_invited_or_knocked_users = set() + newly_left_users = set() + if self.since_token: + for joined_sync in self.joined: + it = itertools.chain( + joined_sync.timeline.events, joined_sync.state.values() + ) + for event in it: + if event.type == EventTypes.Member: + if ( + event.membership == Membership.JOIN + or event.membership == Membership.INVITE + or event.membership == Membership.KNOCK + ): + newly_joined_or_invited_or_knocked_users.add( + event.state_key + ) + else: + prev_content = event.unsigned.get("prev_content", {}) + prev_membership = prev_content.get("membership", None) + if prev_membership == Membership.JOIN: + newly_left_users.add(event.state_key) + + newly_left_users -= newly_joined_or_invited_or_knocked_users + return newly_joined_or_invited_or_knocked_users, newly_left_users + @attr.s(slots=True, auto_attribs=True) class RoomSyncResultBuilder: |