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Merge pull request #1877 from matrix-org/erikj/device_list_fixes
Make /keys/changes a bit more performant
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commit
8da976fe00
2 changed files with 23 additions and 21 deletions
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@ -17,7 +17,7 @@ from synapse.api import errors
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from synapse.api.constants import EventTypes
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from synapse.util import stringutils
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from synapse.util.async import Linearizer
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from synapse.types import get_domain_from_id
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from synapse.types import get_domain_from_id, RoomStreamToken
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from twisted.internet import defer
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from ._base import BaseHandler
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@ -198,20 +198,22 @@ class DeviceHandler(BaseHandler):
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"""Notify that a user's device(s) has changed. Pokes the notifier, and
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remote servers if the user is local.
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"""
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rooms = yield self.store.get_rooms_for_user(user_id)
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room_ids = [r.room_id for r in rooms]
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users_who_share_room = yield self.store.get_users_who_share_room_with_user(
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user_id
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)
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hosts = set()
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if self.hs.is_mine_id(user_id):
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for room_id in room_ids:
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users = yield self.store.get_users_in_room(room_id)
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hosts.update(get_domain_from_id(u) for u in users)
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hosts.update(get_domain_from_id(u) for u in users_who_share_room)
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hosts.discard(self.server_name)
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position = yield self.store.add_device_change_to_streams(
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user_id, device_ids, list(hosts)
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)
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rooms = yield self.store.get_rooms_for_user(user_id)
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room_ids = [r.room_id for r in rooms]
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yield self.notifier.on_new_event(
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"device_list_key", position, rooms=room_ids,
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)
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@ -243,15 +245,15 @@ class DeviceHandler(BaseHandler):
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possibly_changed = set(changed)
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for room_id in rooms_changed:
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# Fetch (an approximation) of the current state at the time.
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event_rows, token = yield self.store.get_recent_event_ids_for_room(
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room_id, end_token=from_token.room_key, limit=1,
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)
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# Fetch the current state at the time.
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stream_ordering = RoomStreamToken.parse_stream_token(from_token.room_key)
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if event_rows:
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last_event_id = event_rows[-1]["event_id"]
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prev_state_ids = yield self.store.get_state_ids_for_event(last_event_id)
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else:
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try:
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event_ids = yield self.store.get_forward_extremeties_for_room(
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room_id, stream_ordering=stream_ordering
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)
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prev_state_ids = yield self.store.get_state_ids_for_events(event_ids)
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except:
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prev_state_ids = {}
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current_state_ids = yield self.state.get_current_state_ids(room_id)
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@ -266,13 +268,13 @@ class DeviceHandler(BaseHandler):
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if not prev_event_id or prev_event_id != event_id:
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possibly_changed.add(state_key)
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user_ids_changed = set()
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for other_user_id in possibly_changed:
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other_rooms = yield self.store.get_rooms_for_user(other_user_id)
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if room_ids.intersection(e.room_id for e in other_rooms):
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user_ids_changed.add(other_user_id)
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users_who_share_room = yield self.store.get_users_who_share_room_with_user(
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user_id
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)
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defer.returnValue(user_ids_changed)
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# Take the intersection of the users whose devices may have changed
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# and those that actually still share a room with the user
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defer.returnValue(users_who_share_room & possibly_changed)
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@defer.inlineCallbacks
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def _incoming_device_list_update(self, origin, edu_content):
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@ -193,7 +193,7 @@ class KeyChangesServlet(RestServlet):
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)
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defer.returnValue((200, {
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"changed": changed
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"changed": list(changed),
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}))
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