Include newly joined users in /keys/changes API

This commit is contained in:
Erik Johnston 2017-02-01 17:33:16 +00:00
parent 96355d2f2f
commit 7e919bdbd0
3 changed files with 43 additions and 5 deletions

View file

@ -14,6 +14,7 @@
# limitations under the License.
from synapse.api import errors
from synapse.api.constants import EventTypes
from synapse.util import stringutils
from synapse.util.async import Linearizer
from synapse.types import get_domain_from_id
@ -221,15 +222,45 @@ class DeviceHandler(BaseHandler):
self.federation_sender.send_device_messages(host)
@defer.inlineCallbacks
def get_user_ids_changed(self, user_id, from_device_key):
def get_user_ids_changed(self, user_id, from_token):
rooms = yield self.store.get_rooms_for_user(user_id)
room_ids = set(r.room_id for r in rooms)
user_ids_changed = set()
# First we check if any devices have changed
changed = yield self.store.get_user_whose_devices_changed(
from_device_key
from_token.device_list_key
)
for other_user_id in changed:
# Then work out if any users have since joined
rooms_changed = self.store.get_rooms_that_changed(room_ids, from_token.room_key)
possibly_changed = set(changed)
for room_id in rooms_changed:
# Fetch (an approximation) of the current state at the time.
event_rows, token = yield self.store.get_recent_event_ids_for_room(
room_id, end_token=from_token.room_key, limit=1,
)
if event_rows:
last_event_id = event_rows[-1]["event_id"]
prev_state_ids = yield self.store.get_state_ids_for_event(last_event_id)
else:
prev_state_ids = {}
current_state_ids = yield self.state.get_current_state_ids(room_id)
# If there has been any change in membership, include them in the
# possibly changed list. We'll check if they are joined below,
# and we're not toooo worried about spuriously adding users.
for key, event_id in current_state_ids.iteritems():
etype, state_key = key
if etype == EventTypes.Member:
prev_event_id = prev_state_ids.get(key, None)
if not prev_event_id or prev_event_id != event_id:
possibly_changed.add(state_key)
user_ids_changed = set()
for other_user_id in possibly_changed:
other_rooms = yield self.store.get_rooms_for_user(other_user_id)
if room_ids.intersection(e.room_id for e in other_rooms):
user_ids_changed.add(other_user_id)

View file

@ -189,7 +189,7 @@ class KeyChangesServlet(RestServlet):
user_id = requester.user.to_string()
changed = yield self.device_handler.get_user_ids_changed(
user_id, from_token.device_list_key,
user_id, from_token,
)
defer.returnValue((200, {

View file

@ -244,6 +244,13 @@ class StreamStore(SQLBaseStore):
defer.returnValue(results)
def get_rooms_that_changed(self, room_ids, from_key):
from_key = RoomStreamToken.parse_stream_token(from_key).stream
return set(
room_id for room_id in room_ids
if self._events_stream_cache.has_entity_changed(room_id, from_key)
)
@defer.inlineCallbacks
def get_room_events_stream_for_room(self, room_id, from_key, to_key, limit=0,
order='DESC'):