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Handle joining/leaving rooms in /keys/changes

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This commit is contained in:
Erik Johnston 2017-09-13 16:28:08 +01:00
parent 473700f016
commit 4f845a0713
1 changed files with 38 additions and 1 deletions
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39
synapse/handlers/device.py
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@ -270,6 +270,8 @@ class DeviceHandler(BaseHandler):
user_id (str)
from_token (StreamToken)
"""
now_token = yield self.hs.get_event_sources().get_current_token()
room_ids = yield self.store.get_rooms_for_user(user_id)
# First we check if any devices have changed
@ -280,11 +282,24 @@ class DeviceHandler(BaseHandler):
# Then work out if any users have since joined
rooms_changed = self.store.get_rooms_that_changed(room_ids, from_token.room_key)
member_events = yield self.store.get_membership_changes_for_user(
user_id, from_token.room_key, now_token.room_key
)
rooms_changed.update(event.room_id for event in member_events)
stream_ordering = RoomStreamToken.parse_stream_token(
from_token.room_key).stream
from_token.room_key
).stream
possibly_changed = set(changed)
possibly_left_rooms = set()
for room_id in rooms_changed:
# The user may have left the room
# TODO: Check if they actually did or if we were just invited.
if room_id not in room_ids:
possibly_left_rooms.add(room_id)
continue
# Fetch the current state at the time.
try:
event_ids = yield self.store.get_forward_extremeties_for_room(
@ -307,9 +322,25 @@ class DeviceHandler(BaseHandler):
possibly_changed.add(state_key)
continue
current_member_id = current_state_ids.get((EventTypes.Member, user_id))
if not current_member_id:
continue
# mapping from event_id -> state_dict
prev_state_ids = yield self.store.get_state_ids_for_events(event_ids)
# Check if we've joined the room? If so we just blindly add all the users to
# the "possibly changed" users.
for state_dict in prev_state_ids.itervalues():
member_event = state_dict.get((EventTypes.Member, user_id), None)
if not member_event or member_event != current_member_id:
for key, event_id in current_state_ids.iteritems():
etype, state_key = key
if etype != EventTypes.Member:
continue
possibly_changed.append(state_key)
break
# 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.
@ -324,6 +355,12 @@ class DeviceHandler(BaseHandler):
prev_event_id = state_dict.get(key, None)
if not prev_event_id or prev_event_id != event_id:
possibly_changed.add(state_key)
if state_key == user_id:
for key, event_id in current_state_ids.iteritems():
etype, state_key = key
if etype != EventTypes.Member:
continue
possibly_changed.add(room_id)
break
if possibly_changed: