mirror of
https://git.anonymousland.org/anonymousland/synapse-product.git
synced 2024-10-01 08:25:44 -04:00
ed8c5e4cda
This was broken in PR #4405, commit 886e5ac, where we changed remote
rejections to be outliers.
The fix is to explicitly add the leave event in when we know its an out
of band invite. We can't always add the event as if the server is/was in
the room there might be more events to send down the sync than just the
leave.
1938 lines
75 KiB
Python
1938 lines
75 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 2015, 2016 OpenMarket Ltd
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# Copyright 2018 New Vector Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import collections
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import itertools
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import logging
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from six import iteritems, itervalues
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from prometheus_client import Counter
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from twisted.internet import defer
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from synapse.api.constants import EventTypes, Membership
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from synapse.push.clientformat import format_push_rules_for_user
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from synapse.storage.roommember import MemberSummary
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from synapse.storage.state import StateFilter
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from synapse.types import RoomStreamToken
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from synapse.util.async_helpers import concurrently_execute
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from synapse.util.caches.expiringcache import ExpiringCache
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from synapse.util.caches.lrucache import LruCache
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from synapse.util.caches.response_cache import ResponseCache
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from synapse.util.logcontext import LoggingContext
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from synapse.util.metrics import Measure, measure_func
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from synapse.visibility import filter_events_for_client
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logger = logging.getLogger(__name__)
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# Counts the number of times we returned a non-empty sync. `type` is one of
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# "initial_sync", "full_state_sync" or "incremental_sync", `lazy_loaded` is
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# "true" or "false" depending on if the request asked for lazy loaded members or
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# not.
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non_empty_sync_counter = Counter(
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"synapse_handlers_sync_nonempty_total",
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"Count of non empty sync responses. type is initial_sync/full_state_sync"
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"/incremental_sync. lazy_loaded indicates if lazy loaded members were "
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"enabled for that request.",
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["type", "lazy_loaded"],
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)
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# Store the cache that tracks which lazy-loaded members have been sent to a given
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# client for no more than 30 minutes.
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LAZY_LOADED_MEMBERS_CACHE_MAX_AGE = 30 * 60 * 1000
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# Remember the last 100 members we sent to a client for the purposes of
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# avoiding redundantly sending the same lazy-loaded members to the client
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LAZY_LOADED_MEMBERS_CACHE_MAX_SIZE = 100
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SyncConfig = collections.namedtuple("SyncConfig", [
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"user",
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"filter_collection",
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"is_guest",
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"request_key",
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"device_id",
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])
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class TimelineBatch(collections.namedtuple("TimelineBatch", [
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"prev_batch",
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"events",
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"limited",
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])):
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__slots__ = []
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def __nonzero__(self):
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"""Make the result appear empty if there are no updates. This is used
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to tell if room needs to be part of the sync result.
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"""
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return bool(self.events)
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__bool__ = __nonzero__ # python3
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class JoinedSyncResult(collections.namedtuple("JoinedSyncResult", [
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"room_id", # str
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"timeline", # TimelineBatch
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"state", # dict[(str, str), FrozenEvent]
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"ephemeral",
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"account_data",
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"unread_notifications",
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"summary",
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])):
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__slots__ = []
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def __nonzero__(self):
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"""Make the result appear empty if there are no updates. This is used
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to tell if room needs to be part of the sync result.
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"""
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return bool(
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self.timeline
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or self.state
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or self.ephemeral
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or self.account_data
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# nb the notification count does not, er, count: if there's nothing
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# else in the result, we don't need to send it.
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)
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__bool__ = __nonzero__ # python3
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class ArchivedSyncResult(collections.namedtuple("ArchivedSyncResult", [
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"room_id", # str
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"timeline", # TimelineBatch
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"state", # dict[(str, str), FrozenEvent]
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"account_data",
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])):
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__slots__ = []
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def __nonzero__(self):
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"""Make the result appear empty if there are no updates. This is used
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to tell if room needs to be part of the sync result.
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"""
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return bool(
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self.timeline
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or self.state
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or self.account_data
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)
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__bool__ = __nonzero__ # python3
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class InvitedSyncResult(collections.namedtuple("InvitedSyncResult", [
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"room_id", # str
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"invite", # FrozenEvent: the invite event
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])):
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__slots__ = []
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def __nonzero__(self):
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"""Invited rooms should always be reported to the client"""
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return True
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__bool__ = __nonzero__ # python3
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class GroupsSyncResult(collections.namedtuple("GroupsSyncResult", [
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"join",
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"invite",
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"leave",
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])):
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__slots__ = []
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def __nonzero__(self):
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return bool(self.join or self.invite or self.leave)
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__bool__ = __nonzero__ # python3
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class DeviceLists(collections.namedtuple("DeviceLists", [
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"changed", # list of user_ids whose devices may have changed
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"left", # list of user_ids whose devices we no longer track
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])):
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__slots__ = []
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def __nonzero__(self):
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return bool(self.changed or self.left)
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__bool__ = __nonzero__ # python3
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class SyncResult(collections.namedtuple("SyncResult", [
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"next_batch", # Token for the next sync
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"presence", # List of presence events for the user.
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"account_data", # List of account_data events for the user.
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"joined", # JoinedSyncResult for each joined room.
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"invited", # InvitedSyncResult for each invited room.
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"archived", # ArchivedSyncResult for each archived room.
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"to_device", # List of direct messages for the device.
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"device_lists", # List of user_ids whose devices have changed
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"device_one_time_keys_count", # Dict of algorithm to count for one time keys
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# for this device
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"groups",
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])):
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__slots__ = []
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def __nonzero__(self):
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"""Make the result appear empty if there are no updates. This is used
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to tell if the notifier needs to wait for more events when polling for
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events.
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"""
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return bool(
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self.presence or
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self.joined or
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self.invited or
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self.archived or
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self.account_data or
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self.to_device or
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self.device_lists or
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self.groups
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)
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__bool__ = __nonzero__ # python3
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class SyncHandler(object):
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def __init__(self, hs):
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self.hs_config = hs.config
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self.store = hs.get_datastore()
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self.notifier = hs.get_notifier()
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self.presence_handler = hs.get_presence_handler()
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self.event_sources = hs.get_event_sources()
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self.clock = hs.get_clock()
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self.response_cache = ResponseCache(hs, "sync")
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self.state = hs.get_state_handler()
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self.auth = hs.get_auth()
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# ExpiringCache((User, Device)) -> LruCache(state_key => event_id)
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self.lazy_loaded_members_cache = ExpiringCache(
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"lazy_loaded_members_cache", self.clock,
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max_len=0, expiry_ms=LAZY_LOADED_MEMBERS_CACHE_MAX_AGE,
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)
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@defer.inlineCallbacks
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def wait_for_sync_for_user(self, sync_config, since_token=None, timeout=0,
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full_state=False):
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"""Get the sync for a client if we have new data for it now. Otherwise
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wait for new data to arrive on the server. If the timeout expires, then
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return an empty sync result.
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Returns:
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Deferred[SyncResult]
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"""
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# If the user is not part of the mau group, then check that limits have
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# not been exceeded (if not part of the group by this point, almost certain
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# auth_blocking will occur)
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user_id = sync_config.user.to_string()
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yield self.auth.check_auth_blocking(user_id)
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res = yield self.response_cache.wrap(
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sync_config.request_key,
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self._wait_for_sync_for_user,
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sync_config, since_token, timeout, full_state,
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)
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defer.returnValue(res)
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@defer.inlineCallbacks
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def _wait_for_sync_for_user(self, sync_config, since_token, timeout,
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full_state):
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if since_token is None:
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sync_type = "initial_sync"
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elif full_state:
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sync_type = "full_state_sync"
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else:
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sync_type = "incremental_sync"
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context = LoggingContext.current_context()
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if context:
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context.tag = sync_type
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if timeout == 0 or since_token is None or full_state:
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# we are going to return immediately, so don't bother calling
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# notifier.wait_for_events.
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result = yield self.current_sync_for_user(
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sync_config, since_token, full_state=full_state,
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)
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else:
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def current_sync_callback(before_token, after_token):
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return self.current_sync_for_user(sync_config, since_token)
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result = yield self.notifier.wait_for_events(
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sync_config.user.to_string(), timeout, current_sync_callback,
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from_token=since_token,
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)
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if result:
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if sync_config.filter_collection.lazy_load_members():
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lazy_loaded = "true"
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else:
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lazy_loaded = "false"
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non_empty_sync_counter.labels(sync_type, lazy_loaded).inc()
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defer.returnValue(result)
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def current_sync_for_user(self, sync_config, since_token=None,
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full_state=False):
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"""Get the sync for client needed to match what the server has now.
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Returns:
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A Deferred SyncResult.
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"""
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return self.generate_sync_result(sync_config, since_token, full_state)
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@defer.inlineCallbacks
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def push_rules_for_user(self, user):
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user_id = user.to_string()
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rules = yield self.store.get_push_rules_for_user(user_id)
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rules = format_push_rules_for_user(user, rules)
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defer.returnValue(rules)
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@defer.inlineCallbacks
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def ephemeral_by_room(self, sync_result_builder, now_token, since_token=None):
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"""Get the ephemeral events for each room the user is in
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Args:
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sync_result_builder(SyncResultBuilder)
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now_token (StreamToken): Where the server is currently up to.
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since_token (StreamToken): Where the server was when the client
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last synced.
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Returns:
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A tuple of the now StreamToken, updated to reflect the which typing
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events are included, and a dict mapping from room_id to a list of
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typing events for that room.
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"""
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sync_config = sync_result_builder.sync_config
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with Measure(self.clock, "ephemeral_by_room"):
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typing_key = since_token.typing_key if since_token else "0"
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room_ids = sync_result_builder.joined_room_ids
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typing_source = self.event_sources.sources["typing"]
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typing, typing_key = yield typing_source.get_new_events(
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user=sync_config.user,
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from_key=typing_key,
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limit=sync_config.filter_collection.ephemeral_limit(),
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room_ids=room_ids,
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is_guest=sync_config.is_guest,
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)
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now_token = now_token.copy_and_replace("typing_key", typing_key)
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ephemeral_by_room = {}
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for event in typing:
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# we want to exclude the room_id from the event, but modifying the
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# result returned by the event source is poor form (it might cache
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# the object)
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room_id = event["room_id"]
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event_copy = {k: v for (k, v) in iteritems(event)
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if k != "room_id"}
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ephemeral_by_room.setdefault(room_id, []).append(event_copy)
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receipt_key = since_token.receipt_key if since_token else "0"
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receipt_source = self.event_sources.sources["receipt"]
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receipts, receipt_key = yield receipt_source.get_new_events(
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user=sync_config.user,
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from_key=receipt_key,
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limit=sync_config.filter_collection.ephemeral_limit(),
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room_ids=room_ids,
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is_guest=sync_config.is_guest,
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)
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now_token = now_token.copy_and_replace("receipt_key", receipt_key)
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for event in receipts:
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room_id = event["room_id"]
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# exclude room id, as above
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event_copy = {k: v for (k, v) in iteritems(event)
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if k != "room_id"}
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ephemeral_by_room.setdefault(room_id, []).append(event_copy)
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defer.returnValue((now_token, ephemeral_by_room))
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@defer.inlineCallbacks
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def _load_filtered_recents(self, room_id, sync_config, now_token,
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since_token=None, recents=None, newly_joined_room=False):
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"""
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Returns:
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a Deferred TimelineBatch
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"""
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with Measure(self.clock, "load_filtered_recents"):
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timeline_limit = sync_config.filter_collection.timeline_limit()
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block_all_timeline = sync_config.filter_collection.blocks_all_room_timeline()
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if recents is None or newly_joined_room or timeline_limit < len(recents):
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limited = True
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else:
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limited = False
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if recents:
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recents = sync_config.filter_collection.filter_room_timeline(recents)
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# We check if there are any state events, if there are then we pass
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# all current state events to the filter_events function. This is to
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# ensure that we always include current state in the timeline
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current_state_ids = frozenset()
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if any(e.is_state() for e in recents):
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current_state_ids = yield self.state.get_current_state_ids(room_id)
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current_state_ids = frozenset(itervalues(current_state_ids))
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recents = yield filter_events_for_client(
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self.store,
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sync_config.user.to_string(),
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recents,
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always_include_ids=current_state_ids,
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)
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else:
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recents = []
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if not limited or block_all_timeline:
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defer.returnValue(TimelineBatch(
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events=recents,
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prev_batch=now_token,
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limited=False
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))
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filtering_factor = 2
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load_limit = max(timeline_limit * filtering_factor, 10)
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max_repeat = 5 # Only try a few times per room, otherwise
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room_key = now_token.room_key
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end_key = room_key
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since_key = None
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if since_token and not newly_joined_room:
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since_key = since_token.room_key
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while limited and len(recents) < timeline_limit and max_repeat:
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# If we have a since_key then we are trying to get any events
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# that have happened since `since_key` up to `end_key`, so we
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# can just use `get_room_events_stream_for_room`.
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# Otherwise, we want to return the last N events in the room
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# in toplogical ordering.
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if since_key:
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events, end_key = yield self.store.get_room_events_stream_for_room(
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room_id,
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limit=load_limit + 1,
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from_key=since_key,
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to_key=end_key,
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)
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else:
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events, end_key = yield self.store.get_recent_events_for_room(
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room_id,
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limit=load_limit + 1,
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end_token=end_key,
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)
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loaded_recents = sync_config.filter_collection.filter_room_timeline(
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events
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)
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# We check if there are any state events, if there are then we pass
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# all current state events to the filter_events function. This is to
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# ensure that we always include current state in the timeline
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current_state_ids = frozenset()
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if any(e.is_state() for e in loaded_recents):
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current_state_ids = yield self.state.get_current_state_ids(room_id)
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current_state_ids = frozenset(itervalues(current_state_ids))
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loaded_recents = yield filter_events_for_client(
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self.store,
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sync_config.user.to_string(),
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loaded_recents,
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always_include_ids=current_state_ids,
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)
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loaded_recents.extend(recents)
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recents = loaded_recents
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if len(events) <= load_limit:
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limited = False
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break
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max_repeat -= 1
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if len(recents) > timeline_limit:
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limited = True
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recents = recents[-timeline_limit:]
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room_key = recents[0].internal_metadata.before
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prev_batch_token = now_token.copy_and_replace(
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"room_key", room_key
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)
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defer.returnValue(TimelineBatch(
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events=recents,
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prev_batch=prev_batch_token,
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limited=limited or newly_joined_room
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))
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@defer.inlineCallbacks
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def get_state_after_event(self, event, state_filter=StateFilter.all()):
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"""
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Get the room state after the given event
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Args:
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event(synapse.events.EventBase): event of interest
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state_filter (StateFilter): The state filter used to fetch state
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from the database.
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Returns:
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A Deferred map from ((type, state_key)->Event)
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"""
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state_ids = yield self.store.get_state_ids_for_event(
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event.event_id, state_filter=state_filter,
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)
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if event.is_state():
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state_ids = state_ids.copy()
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state_ids[(event.type, event.state_key)] = event.event_id
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defer.returnValue(state_ids)
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@defer.inlineCallbacks
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def get_state_at(self, room_id, stream_position, state_filter=StateFilter.all()):
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""" Get the room state at a particular stream position
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Args:
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room_id(str): room for which to get state
|
|
stream_position(StreamToken): point at which to get state
|
|
state_filter (StateFilter): The state filter used to fetch state
|
|
from the database.
|
|
|
|
Returns:
|
|
A Deferred map from ((type, state_key)->Event)
|
|
"""
|
|
# FIXME this claims to get the state at a stream position, but
|
|
# get_recent_events_for_room operates by topo ordering. This therefore
|
|
# does not reliably give you the state at the given stream position.
|
|
# (https://github.com/matrix-org/synapse/issues/3305)
|
|
last_events, _ = yield self.store.get_recent_events_for_room(
|
|
room_id, end_token=stream_position.room_key, limit=1,
|
|
)
|
|
|
|
if last_events:
|
|
last_event = last_events[-1]
|
|
state = yield self.get_state_after_event(
|
|
last_event, state_filter=state_filter,
|
|
)
|
|
|
|
else:
|
|
# no events in this room - so presumably no state
|
|
state = {}
|
|
defer.returnValue(state)
|
|
|
|
@defer.inlineCallbacks
|
|
def compute_summary(self, room_id, sync_config, batch, state, now_token):
|
|
""" Works out a room summary block for this room, summarising the number
|
|
of joined members in the room, and providing the 'hero' members if the
|
|
room has no name so clients can consistently name rooms. Also adds
|
|
state events to 'state' if needed to describe the heroes.
|
|
|
|
Args:
|
|
room_id(str):
|
|
sync_config(synapse.handlers.sync.SyncConfig):
|
|
batch(synapse.handlers.sync.TimelineBatch): The timeline batch for
|
|
the room that will be sent to the user.
|
|
state(dict): dict of (type, state_key) -> Event as returned by
|
|
compute_state_delta
|
|
now_token(str): Token of the end of the current batch.
|
|
|
|
Returns:
|
|
A deferred dict describing the room summary
|
|
"""
|
|
|
|
# FIXME: we could/should get this from room_stats when matthew/stats lands
|
|
|
|
# FIXME: this promulgates https://github.com/matrix-org/synapse/issues/3305
|
|
last_events, _ = yield self.store.get_recent_event_ids_for_room(
|
|
room_id, end_token=now_token.room_key, limit=1,
|
|
)
|
|
|
|
if not last_events:
|
|
defer.returnValue(None)
|
|
return
|
|
|
|
last_event = last_events[-1]
|
|
state_ids = yield self.store.get_state_ids_for_event(
|
|
last_event.event_id,
|
|
state_filter=StateFilter.from_types([
|
|
(EventTypes.Name, ''),
|
|
(EventTypes.CanonicalAlias, ''),
|
|
]),
|
|
)
|
|
|
|
# this is heavily cached, thus: fast.
|
|
details = yield self.store.get_room_summary(room_id)
|
|
|
|
name_id = state_ids.get((EventTypes.Name, ''))
|
|
canonical_alias_id = state_ids.get((EventTypes.CanonicalAlias, ''))
|
|
|
|
summary = {}
|
|
empty_ms = MemberSummary([], 0)
|
|
|
|
# TODO: only send these when they change.
|
|
summary["m.joined_member_count"] = (
|
|
details.get(Membership.JOIN, empty_ms).count
|
|
)
|
|
summary["m.invited_member_count"] = (
|
|
details.get(Membership.INVITE, empty_ms).count
|
|
)
|
|
|
|
# if the room has a name or canonical_alias set, we can skip
|
|
# calculating heroes. we assume that if the event has contents, it'll
|
|
# be a valid name or canonical_alias - i.e. we're checking that they
|
|
# haven't been "deleted" by blatting {} over the top.
|
|
if name_id:
|
|
name = yield self.store.get_event(name_id, allow_none=True)
|
|
if name and name.content:
|
|
defer.returnValue(summary)
|
|
|
|
if canonical_alias_id:
|
|
canonical_alias = yield self.store.get_event(
|
|
canonical_alias_id, allow_none=True,
|
|
)
|
|
if canonical_alias and canonical_alias.content:
|
|
defer.returnValue(summary)
|
|
|
|
joined_user_ids = [
|
|
r[0] for r in details.get(Membership.JOIN, empty_ms).members
|
|
]
|
|
invited_user_ids = [
|
|
r[0] for r in details.get(Membership.INVITE, empty_ms).members
|
|
]
|
|
gone_user_ids = (
|
|
[r[0] for r in details.get(Membership.LEAVE, empty_ms).members] +
|
|
[r[0] for r in details.get(Membership.BAN, empty_ms).members]
|
|
)
|
|
|
|
# FIXME: only build up a member_ids list for our heroes
|
|
member_ids = {}
|
|
for membership in (
|
|
Membership.JOIN,
|
|
Membership.INVITE,
|
|
Membership.LEAVE,
|
|
Membership.BAN
|
|
):
|
|
for user_id, event_id in details.get(membership, empty_ms).members:
|
|
member_ids[user_id] = event_id
|
|
|
|
# FIXME: order by stream ordering rather than as returned by SQL
|
|
me = sync_config.user.to_string()
|
|
if (joined_user_ids or invited_user_ids):
|
|
summary['m.heroes'] = sorted(
|
|
[
|
|
user_id
|
|
for user_id in (joined_user_ids + invited_user_ids)
|
|
if user_id != me
|
|
]
|
|
)[0:5]
|
|
else:
|
|
summary['m.heroes'] = sorted(
|
|
[
|
|
user_id
|
|
for user_id in gone_user_ids
|
|
if user_id != me
|
|
]
|
|
)[0:5]
|
|
|
|
if not sync_config.filter_collection.lazy_load_members():
|
|
defer.returnValue(summary)
|
|
|
|
# ensure we send membership events for heroes if needed
|
|
cache_key = (sync_config.user.to_string(), sync_config.device_id)
|
|
cache = self.get_lazy_loaded_members_cache(cache_key)
|
|
|
|
# track which members the client should already know about via LL:
|
|
# Ones which are already in state...
|
|
existing_members = set(
|
|
user_id for (typ, user_id) in state.keys()
|
|
if typ == EventTypes.Member
|
|
)
|
|
|
|
# ...or ones which are in the timeline...
|
|
for ev in batch.events:
|
|
if ev.type == EventTypes.Member:
|
|
existing_members.add(ev.state_key)
|
|
|
|
# ...and then ensure any missing ones get included in state.
|
|
missing_hero_event_ids = [
|
|
member_ids[hero_id]
|
|
for hero_id in summary['m.heroes']
|
|
if (
|
|
cache.get(hero_id) != member_ids[hero_id] and
|
|
hero_id not in existing_members
|
|
)
|
|
]
|
|
|
|
missing_hero_state = yield self.store.get_events(missing_hero_event_ids)
|
|
missing_hero_state = missing_hero_state.values()
|
|
|
|
for s in missing_hero_state:
|
|
cache.set(s.state_key, s.event_id)
|
|
state[(EventTypes.Member, s.state_key)] = s
|
|
|
|
defer.returnValue(summary)
|
|
|
|
def get_lazy_loaded_members_cache(self, cache_key):
|
|
cache = self.lazy_loaded_members_cache.get(cache_key)
|
|
if cache is None:
|
|
logger.debug("creating LruCache for %r", cache_key)
|
|
cache = LruCache(LAZY_LOADED_MEMBERS_CACHE_MAX_SIZE)
|
|
self.lazy_loaded_members_cache[cache_key] = cache
|
|
else:
|
|
logger.debug("found LruCache for %r", cache_key)
|
|
return cache
|
|
|
|
@defer.inlineCallbacks
|
|
def compute_state_delta(self, room_id, batch, sync_config, since_token, now_token,
|
|
full_state):
|
|
""" Works out the difference in state between the start of the timeline
|
|
and the previous sync.
|
|
|
|
Args:
|
|
room_id(str):
|
|
batch(synapse.handlers.sync.TimelineBatch): The timeline batch for
|
|
the room that will be sent to the user.
|
|
sync_config(synapse.handlers.sync.SyncConfig):
|
|
since_token(str|None): Token of the end of the previous batch. May
|
|
be None.
|
|
now_token(str): Token of the end of the current batch.
|
|
full_state(bool): Whether to force returning the full state.
|
|
|
|
Returns:
|
|
A deferred dict of (type, state_key) -> Event
|
|
"""
|
|
# TODO(mjark) Check if the state events were received by the server
|
|
# after the previous sync, since we need to include those state
|
|
# updates even if they occured logically before the previous event.
|
|
# TODO(mjark) Check for new redactions in the state events.
|
|
|
|
with Measure(self.clock, "compute_state_delta"):
|
|
|
|
members_to_fetch = None
|
|
|
|
lazy_load_members = sync_config.filter_collection.lazy_load_members()
|
|
include_redundant_members = (
|
|
sync_config.filter_collection.include_redundant_members()
|
|
)
|
|
|
|
if lazy_load_members:
|
|
# We only request state for the members needed to display the
|
|
# timeline:
|
|
|
|
members_to_fetch = set(
|
|
event.sender # FIXME: we also care about invite targets etc.
|
|
for event in batch.events
|
|
)
|
|
|
|
if full_state:
|
|
# always make sure we LL ourselves so we know we're in the room
|
|
# (if we are) to fix https://github.com/vector-im/riot-web/issues/7209
|
|
# We only need apply this on full state syncs given we disabled
|
|
# LL for incr syncs in #3840.
|
|
members_to_fetch.add(sync_config.user.to_string())
|
|
|
|
state_filter = StateFilter.from_lazy_load_member_list(members_to_fetch)
|
|
else:
|
|
state_filter = StateFilter.all()
|
|
|
|
timeline_state = {
|
|
(event.type, event.state_key): event.event_id
|
|
for event in batch.events if event.is_state()
|
|
}
|
|
|
|
if full_state:
|
|
if batch:
|
|
current_state_ids = yield self.store.get_state_ids_for_event(
|
|
batch.events[-1].event_id, state_filter=state_filter,
|
|
)
|
|
|
|
state_ids = yield self.store.get_state_ids_for_event(
|
|
batch.events[0].event_id, state_filter=state_filter,
|
|
)
|
|
|
|
else:
|
|
current_state_ids = yield self.get_state_at(
|
|
room_id, stream_position=now_token,
|
|
state_filter=state_filter,
|
|
)
|
|
|
|
state_ids = current_state_ids
|
|
|
|
state_ids = _calculate_state(
|
|
timeline_contains=timeline_state,
|
|
timeline_start=state_ids,
|
|
previous={},
|
|
current=current_state_ids,
|
|
lazy_load_members=lazy_load_members,
|
|
)
|
|
elif batch.limited:
|
|
state_at_timeline_start = yield self.store.get_state_ids_for_event(
|
|
batch.events[0].event_id, state_filter=state_filter,
|
|
)
|
|
|
|
# for now, we disable LL for gappy syncs - see
|
|
# https://github.com/vector-im/riot-web/issues/7211#issuecomment-419976346
|
|
# N.B. this slows down incr syncs as we are now processing way
|
|
# more state in the server than if we were LLing.
|
|
#
|
|
# We still have to filter timeline_start to LL entries (above) in order
|
|
# for _calculate_state's LL logic to work, as we have to include LL
|
|
# members for timeline senders in case they weren't loaded in the initial
|
|
# sync. We do this by (counterintuitively) by filtering timeline_start
|
|
# members to just be ones which were timeline senders, which then ensures
|
|
# all of the rest get included in the state block (if we need to know
|
|
# about them).
|
|
state_filter = StateFilter.all()
|
|
|
|
state_at_previous_sync = yield self.get_state_at(
|
|
room_id, stream_position=since_token,
|
|
state_filter=state_filter,
|
|
)
|
|
|
|
current_state_ids = yield self.store.get_state_ids_for_event(
|
|
batch.events[-1].event_id, state_filter=state_filter,
|
|
)
|
|
|
|
state_ids = _calculate_state(
|
|
timeline_contains=timeline_state,
|
|
timeline_start=state_at_timeline_start,
|
|
previous=state_at_previous_sync,
|
|
current=current_state_ids,
|
|
# we have to include LL members in case LL initial sync missed them
|
|
lazy_load_members=lazy_load_members,
|
|
)
|
|
else:
|
|
state_ids = {}
|
|
if lazy_load_members:
|
|
if members_to_fetch and batch.events:
|
|
# We're returning an incremental sync, with no
|
|
# "gap" since the previous sync, so normally there would be
|
|
# no state to return.
|
|
# But we're lazy-loading, so the client might need some more
|
|
# member events to understand the events in this timeline.
|
|
# So we fish out all the member events corresponding to the
|
|
# timeline here, and then dedupe any redundant ones below.
|
|
|
|
state_ids = yield self.store.get_state_ids_for_event(
|
|
batch.events[0].event_id,
|
|
# we only want members!
|
|
state_filter=StateFilter.from_types(
|
|
(EventTypes.Member, member)
|
|
for member in members_to_fetch
|
|
),
|
|
)
|
|
|
|
if lazy_load_members and not include_redundant_members:
|
|
cache_key = (sync_config.user.to_string(), sync_config.device_id)
|
|
cache = self.get_lazy_loaded_members_cache(cache_key)
|
|
|
|
# if it's a new sync sequence, then assume the client has had
|
|
# amnesia and doesn't want any recent lazy-loaded members
|
|
# de-duplicated.
|
|
if since_token is None:
|
|
logger.debug("clearing LruCache for %r", cache_key)
|
|
cache.clear()
|
|
else:
|
|
# only send members which aren't in our LruCache (either
|
|
# because they're new to this client or have been pushed out
|
|
# of the cache)
|
|
logger.debug("filtering state from %r...", state_ids)
|
|
state_ids = {
|
|
t: event_id
|
|
for t, event_id in iteritems(state_ids)
|
|
if cache.get(t[1]) != event_id
|
|
}
|
|
logger.debug("...to %r", state_ids)
|
|
|
|
# add any member IDs we are about to send into our LruCache
|
|
for t, event_id in itertools.chain(
|
|
state_ids.items(),
|
|
timeline_state.items(),
|
|
):
|
|
if t[0] == EventTypes.Member:
|
|
cache.set(t[1], event_id)
|
|
|
|
state = {}
|
|
if state_ids:
|
|
state = yield self.store.get_events(list(state_ids.values()))
|
|
|
|
defer.returnValue({
|
|
(e.type, e.state_key): e
|
|
for e in sync_config.filter_collection.filter_room_state(list(state.values()))
|
|
})
|
|
|
|
@defer.inlineCallbacks
|
|
def unread_notifs_for_room_id(self, room_id, sync_config):
|
|
with Measure(self.clock, "unread_notifs_for_room_id"):
|
|
last_unread_event_id = yield self.store.get_last_receipt_event_id_for_user(
|
|
user_id=sync_config.user.to_string(),
|
|
room_id=room_id,
|
|
receipt_type="m.read"
|
|
)
|
|
|
|
notifs = []
|
|
if last_unread_event_id:
|
|
notifs = yield self.store.get_unread_event_push_actions_by_room_for_user(
|
|
room_id, sync_config.user.to_string(), last_unread_event_id
|
|
)
|
|
defer.returnValue(notifs)
|
|
|
|
# There is no new information in this period, so your notification
|
|
# count is whatever it was last time.
|
|
defer.returnValue(None)
|
|
|
|
@defer.inlineCallbacks
|
|
def generate_sync_result(self, sync_config, since_token=None, full_state=False):
|
|
"""Generates a sync result.
|
|
|
|
Args:
|
|
sync_config (SyncConfig)
|
|
since_token (StreamToken)
|
|
full_state (bool)
|
|
|
|
Returns:
|
|
Deferred(SyncResult)
|
|
"""
|
|
logger.info("Calculating sync response for %r", sync_config.user)
|
|
|
|
# NB: The now_token gets changed by some of the generate_sync_* methods,
|
|
# this is due to some of the underlying streams not supporting the ability
|
|
# to query up to a given point.
|
|
# Always use the `now_token` in `SyncResultBuilder`
|
|
now_token = yield self.event_sources.get_current_token()
|
|
|
|
user_id = sync_config.user.to_string()
|
|
app_service = self.store.get_app_service_by_user_id(user_id)
|
|
if app_service:
|
|
# We no longer support AS users using /sync directly.
|
|
# See https://github.com/matrix-org/matrix-doc/issues/1144
|
|
raise NotImplementedError()
|
|
else:
|
|
joined_room_ids = yield self.get_rooms_for_user_at(
|
|
user_id, now_token.room_stream_id,
|
|
)
|
|
|
|
sync_result_builder = SyncResultBuilder(
|
|
sync_config, full_state,
|
|
since_token=since_token,
|
|
now_token=now_token,
|
|
joined_room_ids=joined_room_ids,
|
|
)
|
|
|
|
account_data_by_room = yield self._generate_sync_entry_for_account_data(
|
|
sync_result_builder
|
|
)
|
|
|
|
res = yield self._generate_sync_entry_for_rooms(
|
|
sync_result_builder, account_data_by_room
|
|
)
|
|
newly_joined_rooms, newly_joined_users, _, _ = res
|
|
_, _, newly_left_rooms, newly_left_users = res
|
|
|
|
block_all_presence_data = (
|
|
since_token is None and
|
|
sync_config.filter_collection.blocks_all_presence()
|
|
)
|
|
if self.hs_config.use_presence and not block_all_presence_data:
|
|
yield self._generate_sync_entry_for_presence(
|
|
sync_result_builder, newly_joined_rooms, newly_joined_users
|
|
)
|
|
|
|
yield self._generate_sync_entry_for_to_device(sync_result_builder)
|
|
|
|
device_lists = yield self._generate_sync_entry_for_device_list(
|
|
sync_result_builder,
|
|
newly_joined_rooms=newly_joined_rooms,
|
|
newly_joined_users=newly_joined_users,
|
|
newly_left_rooms=newly_left_rooms,
|
|
newly_left_users=newly_left_users,
|
|
)
|
|
|
|
device_id = sync_config.device_id
|
|
one_time_key_counts = {}
|
|
if device_id:
|
|
one_time_key_counts = yield self.store.count_e2e_one_time_keys(
|
|
user_id, device_id
|
|
)
|
|
|
|
yield self._generate_sync_entry_for_groups(sync_result_builder)
|
|
|
|
defer.returnValue(SyncResult(
|
|
presence=sync_result_builder.presence,
|
|
account_data=sync_result_builder.account_data,
|
|
joined=sync_result_builder.joined,
|
|
invited=sync_result_builder.invited,
|
|
archived=sync_result_builder.archived,
|
|
to_device=sync_result_builder.to_device,
|
|
device_lists=device_lists,
|
|
groups=sync_result_builder.groups,
|
|
device_one_time_keys_count=one_time_key_counts,
|
|
next_batch=sync_result_builder.now_token,
|
|
))
|
|
|
|
@measure_func("_generate_sync_entry_for_groups")
|
|
@defer.inlineCallbacks
|
|
def _generate_sync_entry_for_groups(self, sync_result_builder):
|
|
user_id = sync_result_builder.sync_config.user.to_string()
|
|
since_token = sync_result_builder.since_token
|
|
now_token = sync_result_builder.now_token
|
|
|
|
if since_token and since_token.groups_key:
|
|
results = yield self.store.get_groups_changes_for_user(
|
|
user_id, since_token.groups_key, now_token.groups_key,
|
|
)
|
|
else:
|
|
results = yield self.store.get_all_groups_for_user(
|
|
user_id, now_token.groups_key,
|
|
)
|
|
|
|
invited = {}
|
|
joined = {}
|
|
left = {}
|
|
for result in results:
|
|
membership = result["membership"]
|
|
group_id = result["group_id"]
|
|
gtype = result["type"]
|
|
content = result["content"]
|
|
|
|
if membership == "join":
|
|
if gtype == "membership":
|
|
# TODO: Add profile
|
|
content.pop("membership", None)
|
|
joined[group_id] = content["content"]
|
|
else:
|
|
joined.setdefault(group_id, {})[gtype] = content
|
|
elif membership == "invite":
|
|
if gtype == "membership":
|
|
content.pop("membership", None)
|
|
invited[group_id] = content["content"]
|
|
else:
|
|
if gtype == "membership":
|
|
left[group_id] = content["content"]
|
|
|
|
sync_result_builder.groups = GroupsSyncResult(
|
|
join=joined,
|
|
invite=invited,
|
|
leave=left,
|
|
)
|
|
|
|
@measure_func("_generate_sync_entry_for_device_list")
|
|
@defer.inlineCallbacks
|
|
def _generate_sync_entry_for_device_list(self, sync_result_builder,
|
|
newly_joined_rooms, newly_joined_users,
|
|
newly_left_rooms, newly_left_users):
|
|
user_id = sync_result_builder.sync_config.user.to_string()
|
|
since_token = sync_result_builder.since_token
|
|
|
|
if since_token and since_token.device_list_key:
|
|
changed = yield self.store.get_user_whose_devices_changed(
|
|
since_token.device_list_key
|
|
)
|
|
|
|
# TODO: Be more clever than this, i.e. remove users who we already
|
|
# share a room with?
|
|
for room_id in newly_joined_rooms:
|
|
joined_users = yield self.state.get_current_user_in_room(room_id)
|
|
newly_joined_users.update(joined_users)
|
|
|
|
for room_id in newly_left_rooms:
|
|
left_users = yield self.state.get_current_user_in_room(room_id)
|
|
newly_left_users.update(left_users)
|
|
|
|
# TODO: Check that these users are actually new, i.e. either they
|
|
# weren't in the previous sync *or* they left and rejoined.
|
|
changed.update(newly_joined_users)
|
|
|
|
if not changed and not newly_left_users:
|
|
defer.returnValue(DeviceLists(
|
|
changed=[],
|
|
left=newly_left_users,
|
|
))
|
|
|
|
users_who_share_room = yield self.store.get_users_who_share_room_with_user(
|
|
user_id
|
|
)
|
|
|
|
defer.returnValue(DeviceLists(
|
|
changed=users_who_share_room & changed,
|
|
left=set(newly_left_users) - users_who_share_room,
|
|
))
|
|
else:
|
|
defer.returnValue(DeviceLists(
|
|
changed=[],
|
|
left=[],
|
|
))
|
|
|
|
@defer.inlineCallbacks
|
|
def _generate_sync_entry_for_to_device(self, sync_result_builder):
|
|
"""Generates the portion of the sync response. Populates
|
|
`sync_result_builder` with the result.
|
|
|
|
Args:
|
|
sync_result_builder(SyncResultBuilder)
|
|
|
|
Returns:
|
|
Deferred(dict): A dictionary containing the per room account data.
|
|
"""
|
|
user_id = sync_result_builder.sync_config.user.to_string()
|
|
device_id = sync_result_builder.sync_config.device_id
|
|
now_token = sync_result_builder.now_token
|
|
since_stream_id = 0
|
|
if sync_result_builder.since_token is not None:
|
|
since_stream_id = int(sync_result_builder.since_token.to_device_key)
|
|
|
|
if since_stream_id != int(now_token.to_device_key):
|
|
# We only delete messages when a new message comes in, but that's
|
|
# fine so long as we delete them at some point.
|
|
|
|
deleted = yield self.store.delete_messages_for_device(
|
|
user_id, device_id, since_stream_id
|
|
)
|
|
logger.debug("Deleted %d to-device messages up to %d",
|
|
deleted, since_stream_id)
|
|
|
|
messages, stream_id = yield self.store.get_new_messages_for_device(
|
|
user_id, device_id, since_stream_id, now_token.to_device_key
|
|
)
|
|
|
|
logger.debug(
|
|
"Returning %d to-device messages between %d and %d (current token: %d)",
|
|
len(messages), since_stream_id, stream_id, now_token.to_device_key
|
|
)
|
|
sync_result_builder.now_token = now_token.copy_and_replace(
|
|
"to_device_key", stream_id
|
|
)
|
|
sync_result_builder.to_device = messages
|
|
else:
|
|
sync_result_builder.to_device = []
|
|
|
|
@defer.inlineCallbacks
|
|
def _generate_sync_entry_for_account_data(self, sync_result_builder):
|
|
"""Generates the account data portion of the sync response. Populates
|
|
`sync_result_builder` with the result.
|
|
|
|
Args:
|
|
sync_result_builder(SyncResultBuilder)
|
|
|
|
Returns:
|
|
Deferred(dict): A dictionary containing the per room account data.
|
|
"""
|
|
sync_config = sync_result_builder.sync_config
|
|
user_id = sync_result_builder.sync_config.user.to_string()
|
|
since_token = sync_result_builder.since_token
|
|
|
|
if since_token and not sync_result_builder.full_state:
|
|
account_data, account_data_by_room = (
|
|
yield self.store.get_updated_account_data_for_user(
|
|
user_id,
|
|
since_token.account_data_key,
|
|
)
|
|
)
|
|
|
|
push_rules_changed = yield self.store.have_push_rules_changed_for_user(
|
|
user_id, int(since_token.push_rules_key)
|
|
)
|
|
|
|
if push_rules_changed:
|
|
account_data["m.push_rules"] = yield self.push_rules_for_user(
|
|
sync_config.user
|
|
)
|
|
else:
|
|
account_data, account_data_by_room = (
|
|
yield self.store.get_account_data_for_user(
|
|
sync_config.user.to_string()
|
|
)
|
|
)
|
|
|
|
account_data['m.push_rules'] = yield self.push_rules_for_user(
|
|
sync_config.user
|
|
)
|
|
|
|
account_data_for_user = sync_config.filter_collection.filter_account_data([
|
|
{"type": account_data_type, "content": content}
|
|
for account_data_type, content in account_data.items()
|
|
])
|
|
|
|
sync_result_builder.account_data = account_data_for_user
|
|
|
|
defer.returnValue(account_data_by_room)
|
|
|
|
@defer.inlineCallbacks
|
|
def _generate_sync_entry_for_presence(self, sync_result_builder, newly_joined_rooms,
|
|
newly_joined_users):
|
|
"""Generates the presence portion of the sync response. Populates the
|
|
`sync_result_builder` with the result.
|
|
|
|
Args:
|
|
sync_result_builder(SyncResultBuilder)
|
|
newly_joined_rooms(list): List of rooms that the user has joined
|
|
since the last sync (or empty if an initial sync)
|
|
newly_joined_users(list): List of users that have joined rooms
|
|
since the last sync (or empty if an initial sync)
|
|
"""
|
|
now_token = sync_result_builder.now_token
|
|
sync_config = sync_result_builder.sync_config
|
|
user = sync_result_builder.sync_config.user
|
|
|
|
presence_source = self.event_sources.sources["presence"]
|
|
|
|
since_token = sync_result_builder.since_token
|
|
if since_token and not sync_result_builder.full_state:
|
|
presence_key = since_token.presence_key
|
|
include_offline = True
|
|
else:
|
|
presence_key = None
|
|
include_offline = False
|
|
|
|
presence, presence_key = yield presence_source.get_new_events(
|
|
user=user,
|
|
from_key=presence_key,
|
|
is_guest=sync_config.is_guest,
|
|
include_offline=include_offline,
|
|
)
|
|
sync_result_builder.now_token = now_token.copy_and_replace(
|
|
"presence_key", presence_key
|
|
)
|
|
|
|
extra_users_ids = set(newly_joined_users)
|
|
for room_id in newly_joined_rooms:
|
|
users = yield self.state.get_current_user_in_room(room_id)
|
|
extra_users_ids.update(users)
|
|
extra_users_ids.discard(user.to_string())
|
|
|
|
if extra_users_ids:
|
|
states = yield self.presence_handler.get_states(
|
|
extra_users_ids,
|
|
)
|
|
presence.extend(states)
|
|
|
|
# Deduplicate the presence entries so that there's at most one per user
|
|
presence = list({p.user_id: p for p in presence}.values())
|
|
|
|
presence = sync_config.filter_collection.filter_presence(
|
|
presence
|
|
)
|
|
|
|
sync_result_builder.presence = presence
|
|
|
|
@defer.inlineCallbacks
|
|
def _generate_sync_entry_for_rooms(self, sync_result_builder, account_data_by_room):
|
|
"""Generates the rooms portion of the sync response. Populates the
|
|
`sync_result_builder` with the result.
|
|
|
|
Args:
|
|
sync_result_builder(SyncResultBuilder)
|
|
account_data_by_room(dict): Dictionary of per room account data
|
|
|
|
Returns:
|
|
Deferred(tuple): Returns a 4-tuple of
|
|
`(newly_joined_rooms, newly_joined_users, newly_left_rooms, newly_left_users)`
|
|
"""
|
|
user_id = sync_result_builder.sync_config.user.to_string()
|
|
block_all_room_ephemeral = (
|
|
sync_result_builder.since_token is None and
|
|
sync_result_builder.sync_config.filter_collection.blocks_all_room_ephemeral()
|
|
)
|
|
|
|
if block_all_room_ephemeral:
|
|
ephemeral_by_room = {}
|
|
else:
|
|
now_token, ephemeral_by_room = yield self.ephemeral_by_room(
|
|
sync_result_builder,
|
|
now_token=sync_result_builder.now_token,
|
|
since_token=sync_result_builder.since_token,
|
|
)
|
|
sync_result_builder.now_token = now_token
|
|
|
|
# We check up front if anything has changed, if it hasn't then there is
|
|
# no point in going futher.
|
|
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 = yield self._have_rooms_changed(sync_result_builder)
|
|
if not have_changed:
|
|
tags_by_room = yield self.store.get_updated_tags(
|
|
user_id,
|
|
since_token.account_data_key,
|
|
)
|
|
if not tags_by_room:
|
|
logger.debug("no-oping sync")
|
|
defer.returnValue(([], [], [], []))
|
|
|
|
ignored_account_data = yield self.store.get_global_account_data_by_type_for_user(
|
|
"m.ignored_user_list", user_id=user_id,
|
|
)
|
|
|
|
if ignored_account_data:
|
|
ignored_users = ignored_account_data.get("ignored_users", {}).keys()
|
|
else:
|
|
ignored_users = frozenset()
|
|
|
|
if since_token:
|
|
res = yield self._get_rooms_changed(sync_result_builder, ignored_users)
|
|
room_entries, invited, newly_joined_rooms, newly_left_rooms = res
|
|
|
|
tags_by_room = yield self.store.get_updated_tags(
|
|
user_id, since_token.account_data_key,
|
|
)
|
|
else:
|
|
res = yield self._get_all_rooms(sync_result_builder, ignored_users)
|
|
room_entries, invited, newly_joined_rooms = res
|
|
newly_left_rooms = []
|
|
|
|
tags_by_room = yield self.store.get_tags_for_user(user_id)
|
|
|
|
def handle_room_entries(room_entry):
|
|
return self._generate_room_entry(
|
|
sync_result_builder,
|
|
ignored_users,
|
|
room_entry,
|
|
ephemeral=ephemeral_by_room.get(room_entry.room_id, []),
|
|
tags=tags_by_room.get(room_entry.room_id),
|
|
account_data=account_data_by_room.get(room_entry.room_id, {}),
|
|
always_include=sync_result_builder.full_state,
|
|
)
|
|
|
|
yield concurrently_execute(handle_room_entries, room_entries, 10)
|
|
|
|
sync_result_builder.invited.extend(invited)
|
|
|
|
# Now we want to get any newly joined users
|
|
newly_joined_users = set()
|
|
newly_left_users = set()
|
|
if since_token:
|
|
for joined_sync in sync_result_builder.joined:
|
|
it = itertools.chain(
|
|
joined_sync.timeline.events, itervalues(joined_sync.state)
|
|
)
|
|
for event in it:
|
|
if event.type == EventTypes.Member:
|
|
if event.membership == Membership.JOIN:
|
|
newly_joined_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_users
|
|
|
|
defer.returnValue((
|
|
newly_joined_rooms,
|
|
newly_joined_users,
|
|
newly_left_rooms,
|
|
newly_left_users,
|
|
))
|
|
|
|
@defer.inlineCallbacks
|
|
def _have_rooms_changed(self, sync_result_builder):
|
|
"""Returns whether there may be any new events that should be sent down
|
|
the sync. Returns True if there are.
|
|
"""
|
|
user_id = sync_result_builder.sync_config.user.to_string()
|
|
since_token = sync_result_builder.since_token
|
|
now_token = sync_result_builder.now_token
|
|
|
|
assert since_token
|
|
|
|
# Get a list of membership change events that have happened.
|
|
rooms_changed = yield self.store.get_membership_changes_for_user(
|
|
user_id, since_token.room_key, now_token.room_key
|
|
)
|
|
|
|
if rooms_changed:
|
|
defer.returnValue(True)
|
|
|
|
stream_id = RoomStreamToken.parse_stream_token(since_token.room_key).stream
|
|
for room_id in sync_result_builder.joined_room_ids:
|
|
if self.store.has_room_changed_since(room_id, stream_id):
|
|
defer.returnValue(True)
|
|
defer.returnValue(False)
|
|
|
|
@defer.inlineCallbacks
|
|
def _get_rooms_changed(self, sync_result_builder, ignored_users):
|
|
"""Gets the the changes that have happened since the last sync.
|
|
|
|
Args:
|
|
sync_result_builder(SyncResultBuilder)
|
|
ignored_users(set(str)): Set of users ignored by user.
|
|
|
|
Returns:
|
|
Deferred(tuple): Returns a tuple of the form:
|
|
`(room_entries, invited_rooms, newly_joined_rooms, newly_left_rooms)`
|
|
|
|
where:
|
|
room_entries is a list [RoomSyncResultBuilder]
|
|
invited_rooms is a list [InvitedSyncResult]
|
|
newly_joined rooms is a list[str] of room ids
|
|
newly_left_rooms is a list[str] of room ids
|
|
"""
|
|
user_id = sync_result_builder.sync_config.user.to_string()
|
|
since_token = sync_result_builder.since_token
|
|
now_token = sync_result_builder.now_token
|
|
sync_config = sync_result_builder.sync_config
|
|
|
|
assert since_token
|
|
|
|
# Get a list of membership change events that have happened.
|
|
rooms_changed = yield self.store.get_membership_changes_for_user(
|
|
user_id, since_token.room_key, now_token.room_key
|
|
)
|
|
|
|
mem_change_events_by_room_id = {}
|
|
for event in rooms_changed:
|
|
mem_change_events_by_room_id.setdefault(event.room_id, []).append(event)
|
|
|
|
newly_joined_rooms = []
|
|
newly_left_rooms = []
|
|
room_entries = []
|
|
invited = []
|
|
for room_id, events in iteritems(mem_change_events_by_room_id):
|
|
non_joins = [e for e in events if e.membership != Membership.JOIN]
|
|
has_join = len(non_joins) != len(events)
|
|
|
|
# We want to figure out if we joined the room at some point since
|
|
# the last sync (even if we have since left). This is to make sure
|
|
# we do send down the room, and with full state, where necessary
|
|
|
|
old_state_ids = None
|
|
if room_id in sync_result_builder.joined_room_ids and non_joins:
|
|
# Always include if the user (re)joined the room, especially
|
|
# important so that device list changes are calculated correctly.
|
|
# If there are non join member events, but we are still in the room,
|
|
# then the user must have left and joined
|
|
newly_joined_rooms.append(room_id)
|
|
|
|
# User is in the room so we don't need to do the invite/leave checks
|
|
continue
|
|
|
|
if room_id in sync_result_builder.joined_room_ids or has_join:
|
|
old_state_ids = yield self.get_state_at(room_id, since_token)
|
|
old_mem_ev_id = old_state_ids.get((EventTypes.Member, user_id), None)
|
|
old_mem_ev = None
|
|
if old_mem_ev_id:
|
|
old_mem_ev = yield self.store.get_event(
|
|
old_mem_ev_id, allow_none=True
|
|
)
|
|
if not old_mem_ev or old_mem_ev.membership != Membership.JOIN:
|
|
newly_joined_rooms.append(room_id)
|
|
|
|
# If user is in the room then we don't need to do the invite/leave checks
|
|
if room_id in sync_result_builder.joined_room_ids:
|
|
continue
|
|
|
|
if not non_joins:
|
|
continue
|
|
|
|
# Check if we have left the room. This can either be because we were
|
|
# joined before *or* that we since joined and then left.
|
|
if events[-1].membership != Membership.JOIN:
|
|
if has_join:
|
|
newly_left_rooms.append(room_id)
|
|
else:
|
|
if not old_state_ids:
|
|
old_state_ids = yield self.get_state_at(room_id, since_token)
|
|
old_mem_ev_id = old_state_ids.get(
|
|
(EventTypes.Member, user_id),
|
|
None,
|
|
)
|
|
old_mem_ev = None
|
|
if old_mem_ev_id:
|
|
old_mem_ev = yield self.store.get_event(
|
|
old_mem_ev_id, allow_none=True
|
|
)
|
|
if old_mem_ev and old_mem_ev.membership == Membership.JOIN:
|
|
newly_left_rooms.append(room_id)
|
|
|
|
# Only bother if we're still currently invited
|
|
should_invite = non_joins[-1].membership == Membership.INVITE
|
|
if should_invite:
|
|
if event.sender not in ignored_users:
|
|
room_sync = InvitedSyncResult(room_id, invite=non_joins[-1])
|
|
if room_sync:
|
|
invited.append(room_sync)
|
|
|
|
# Always include leave/ban events. Just take the last one.
|
|
# TODO: How do we handle ban -> leave in same batch?
|
|
leave_events = [
|
|
e for e in non_joins
|
|
if e.membership in (Membership.LEAVE, Membership.BAN)
|
|
]
|
|
|
|
if leave_events:
|
|
leave_event = leave_events[-1]
|
|
leave_stream_token = yield self.store.get_stream_token_for_event(
|
|
leave_event.event_id
|
|
)
|
|
leave_token = since_token.copy_and_replace(
|
|
"room_key", leave_stream_token
|
|
)
|
|
|
|
if since_token and since_token.is_after(leave_token):
|
|
continue
|
|
|
|
# If this is an out of band message, like a remote invite
|
|
# rejection, we include it in the recents batch. Otherwise, we
|
|
# let _load_filtered_recents handle fetching the correct
|
|
# batches.
|
|
#
|
|
# This is all screaming out for a refactor, as the logic here is
|
|
# subtle and the moving parts numerous.
|
|
if leave_event.internal_metadata.is_out_of_band_membership():
|
|
batch_events = [leave_event]
|
|
else:
|
|
batch_events = None
|
|
|
|
room_entries.append(RoomSyncResultBuilder(
|
|
room_id=room_id,
|
|
rtype="archived",
|
|
events=batch_events,
|
|
newly_joined=room_id in newly_joined_rooms,
|
|
full_state=False,
|
|
since_token=since_token,
|
|
upto_token=leave_token,
|
|
))
|
|
|
|
timeline_limit = sync_config.filter_collection.timeline_limit()
|
|
|
|
# Get all events for rooms we're currently joined to.
|
|
room_to_events = yield self.store.get_room_events_stream_for_rooms(
|
|
room_ids=sync_result_builder.joined_room_ids,
|
|
from_key=since_token.room_key,
|
|
to_key=now_token.room_key,
|
|
limit=timeline_limit + 1,
|
|
)
|
|
|
|
# We loop through all room ids, even if there are no new events, in case
|
|
# there are non room events taht we need to notify about.
|
|
for room_id in sync_result_builder.joined_room_ids:
|
|
room_entry = room_to_events.get(room_id, None)
|
|
|
|
if room_entry:
|
|
events, start_key = room_entry
|
|
|
|
prev_batch_token = now_token.copy_and_replace("room_key", start_key)
|
|
|
|
room_entries.append(RoomSyncResultBuilder(
|
|
room_id=room_id,
|
|
rtype="joined",
|
|
events=events,
|
|
newly_joined=room_id in newly_joined_rooms,
|
|
full_state=False,
|
|
since_token=None if room_id in newly_joined_rooms else since_token,
|
|
upto_token=prev_batch_token,
|
|
))
|
|
else:
|
|
room_entries.append(RoomSyncResultBuilder(
|
|
room_id=room_id,
|
|
rtype="joined",
|
|
events=[],
|
|
newly_joined=room_id in newly_joined_rooms,
|
|
full_state=False,
|
|
since_token=since_token,
|
|
upto_token=since_token,
|
|
))
|
|
|
|
defer.returnValue((room_entries, invited, newly_joined_rooms, newly_left_rooms))
|
|
|
|
@defer.inlineCallbacks
|
|
def _get_all_rooms(self, sync_result_builder, ignored_users):
|
|
"""Returns entries for all rooms for the user.
|
|
|
|
Args:
|
|
sync_result_builder(SyncResultBuilder)
|
|
ignored_users(set(str)): Set of users ignored by user.
|
|
|
|
Returns:
|
|
Deferred(tuple): Returns a tuple of the form:
|
|
`([RoomSyncResultBuilder], [InvitedSyncResult], [])`
|
|
"""
|
|
|
|
user_id = sync_result_builder.sync_config.user.to_string()
|
|
since_token = sync_result_builder.since_token
|
|
now_token = sync_result_builder.now_token
|
|
sync_config = sync_result_builder.sync_config
|
|
|
|
membership_list = (
|
|
Membership.INVITE, Membership.JOIN, Membership.LEAVE, Membership.BAN
|
|
)
|
|
|
|
room_list = yield self.store.get_rooms_for_user_where_membership_is(
|
|
user_id=user_id,
|
|
membership_list=membership_list
|
|
)
|
|
|
|
room_entries = []
|
|
invited = []
|
|
|
|
for event in room_list:
|
|
if event.membership == Membership.JOIN:
|
|
room_entries.append(RoomSyncResultBuilder(
|
|
room_id=event.room_id,
|
|
rtype="joined",
|
|
events=None,
|
|
newly_joined=False,
|
|
full_state=True,
|
|
since_token=since_token,
|
|
upto_token=now_token,
|
|
))
|
|
elif event.membership == Membership.INVITE:
|
|
if event.sender in ignored_users:
|
|
continue
|
|
invite = yield self.store.get_event(event.event_id)
|
|
invited.append(InvitedSyncResult(
|
|
room_id=event.room_id,
|
|
invite=invite,
|
|
))
|
|
elif event.membership in (Membership.LEAVE, Membership.BAN):
|
|
# Always send down rooms we were banned or kicked from.
|
|
if not sync_config.filter_collection.include_leave:
|
|
if event.membership == Membership.LEAVE:
|
|
if user_id == event.sender:
|
|
continue
|
|
|
|
leave_token = now_token.copy_and_replace(
|
|
"room_key", "s%d" % (event.stream_ordering,)
|
|
)
|
|
room_entries.append(RoomSyncResultBuilder(
|
|
room_id=event.room_id,
|
|
rtype="archived",
|
|
events=None,
|
|
newly_joined=False,
|
|
full_state=True,
|
|
since_token=since_token,
|
|
upto_token=leave_token,
|
|
))
|
|
|
|
defer.returnValue((room_entries, invited, []))
|
|
|
|
@defer.inlineCallbacks
|
|
def _generate_room_entry(self, sync_result_builder, ignored_users,
|
|
room_builder, ephemeral, tags, account_data,
|
|
always_include=False):
|
|
"""Populates the `joined` and `archived` section of `sync_result_builder`
|
|
based on the `room_builder`.
|
|
|
|
Args:
|
|
sync_result_builder(SyncResultBuilder)
|
|
ignored_users(set(str)): Set of users ignored by user.
|
|
room_builder(RoomSyncResultBuilder)
|
|
ephemeral(list): List of new ephemeral events for room
|
|
tags(list): List of *all* tags for room, or None if there has been
|
|
no change.
|
|
account_data(list): List of new account data for room
|
|
always_include(bool): Always include this room in the sync response,
|
|
even if empty.
|
|
"""
|
|
newly_joined = room_builder.newly_joined
|
|
full_state = (
|
|
room_builder.full_state
|
|
or newly_joined
|
|
or sync_result_builder.full_state
|
|
)
|
|
events = room_builder.events
|
|
|
|
# We want to shortcut out as early as possible.
|
|
if not (always_include or account_data or ephemeral or full_state):
|
|
if events == [] and tags is None:
|
|
return
|
|
|
|
now_token = sync_result_builder.now_token
|
|
sync_config = sync_result_builder.sync_config
|
|
|
|
room_id = room_builder.room_id
|
|
since_token = room_builder.since_token
|
|
upto_token = room_builder.upto_token
|
|
|
|
batch = yield self._load_filtered_recents(
|
|
room_id, sync_config,
|
|
now_token=upto_token,
|
|
since_token=since_token,
|
|
recents=events,
|
|
newly_joined_room=newly_joined,
|
|
)
|
|
|
|
# When we join the room (or the client requests full_state), we should
|
|
# send down any existing tags. Usually the user won't have tags in a
|
|
# newly joined room, unless either a) they've joined before or b) the
|
|
# tag was added by synapse e.g. for server notice rooms.
|
|
if full_state:
|
|
user_id = sync_result_builder.sync_config.user.to_string()
|
|
tags = yield self.store.get_tags_for_room(user_id, room_id)
|
|
|
|
# If there aren't any tags, don't send the empty tags list down
|
|
# sync
|
|
if not tags:
|
|
tags = None
|
|
|
|
account_data_events = []
|
|
if tags is not None:
|
|
account_data_events.append({
|
|
"type": "m.tag",
|
|
"content": {"tags": tags},
|
|
})
|
|
|
|
for account_data_type, content in account_data.items():
|
|
account_data_events.append({
|
|
"type": account_data_type,
|
|
"content": content,
|
|
})
|
|
|
|
account_data_events = sync_config.filter_collection.filter_room_account_data(
|
|
account_data_events
|
|
)
|
|
|
|
ephemeral = sync_config.filter_collection.filter_room_ephemeral(ephemeral)
|
|
|
|
if not (always_include
|
|
or batch
|
|
or account_data_events
|
|
or ephemeral
|
|
or full_state):
|
|
return
|
|
|
|
state = yield self.compute_state_delta(
|
|
room_id, batch, sync_config, since_token, now_token,
|
|
full_state=full_state
|
|
)
|
|
|
|
summary = {}
|
|
|
|
# we include a summary in room responses when we're lazy loading
|
|
# members (as the client otherwise doesn't have enough info to form
|
|
# the name itself).
|
|
if (
|
|
sync_config.filter_collection.lazy_load_members() and
|
|
(
|
|
# we recalulate the summary:
|
|
# if there are membership changes in the timeline, or
|
|
# if membership has changed during a gappy sync, or
|
|
# if this is an initial sync.
|
|
any(ev.type == EventTypes.Member for ev in batch.events) or
|
|
(
|
|
# XXX: this may include false positives in the form of LL
|
|
# members which have snuck into state
|
|
batch.limited and
|
|
any(t == EventTypes.Member for (t, k) in state)
|
|
) or
|
|
since_token is None
|
|
)
|
|
):
|
|
summary = yield self.compute_summary(
|
|
room_id, sync_config, batch, state, now_token
|
|
)
|
|
|
|
if room_builder.rtype == "joined":
|
|
unread_notifications = {}
|
|
room_sync = JoinedSyncResult(
|
|
room_id=room_id,
|
|
timeline=batch,
|
|
state=state,
|
|
ephemeral=ephemeral,
|
|
account_data=account_data_events,
|
|
unread_notifications=unread_notifications,
|
|
summary=summary,
|
|
)
|
|
|
|
if room_sync or always_include:
|
|
notifs = yield self.unread_notifs_for_room_id(
|
|
room_id, sync_config
|
|
)
|
|
|
|
if notifs is not None:
|
|
unread_notifications["notification_count"] = notifs["notify_count"]
|
|
unread_notifications["highlight_count"] = notifs["highlight_count"]
|
|
|
|
sync_result_builder.joined.append(room_sync)
|
|
|
|
if batch.limited and since_token:
|
|
user_id = sync_result_builder.sync_config.user.to_string()
|
|
logger.info(
|
|
"Incremental gappy sync of %s for user %s with %d state events" % (
|
|
room_id,
|
|
user_id,
|
|
len(state),
|
|
)
|
|
)
|
|
elif room_builder.rtype == "archived":
|
|
room_sync = ArchivedSyncResult(
|
|
room_id=room_id,
|
|
timeline=batch,
|
|
state=state,
|
|
account_data=account_data_events,
|
|
)
|
|
if room_sync or always_include:
|
|
sync_result_builder.archived.append(room_sync)
|
|
else:
|
|
raise Exception("Unrecognized rtype: %r", room_builder.rtype)
|
|
|
|
@defer.inlineCallbacks
|
|
def get_rooms_for_user_at(self, user_id, stream_ordering):
|
|
"""Get set of joined rooms for a user at the given stream ordering.
|
|
|
|
The stream ordering *must* be recent, otherwise this may throw an
|
|
exception if older than a month. (This function is called with the
|
|
current token, which should be perfectly fine).
|
|
|
|
Args:
|
|
user_id (str)
|
|
stream_ordering (int)
|
|
|
|
ReturnValue:
|
|
Deferred[frozenset[str]]: Set of room_ids the user is in at given
|
|
stream_ordering.
|
|
"""
|
|
joined_rooms = yield self.store.get_rooms_for_user_with_stream_ordering(
|
|
user_id,
|
|
)
|
|
|
|
joined_room_ids = set()
|
|
|
|
# We need to check that the stream ordering of the join for each room
|
|
# is before the stream_ordering asked for. This might not be the case
|
|
# if the user joins a room between us getting the current token and
|
|
# calling `get_rooms_for_user_with_stream_ordering`.
|
|
# If the membership's stream ordering is after the given stream
|
|
# ordering, we need to go and work out if the user was in the room
|
|
# before.
|
|
for room_id, membership_stream_ordering in joined_rooms:
|
|
if membership_stream_ordering <= stream_ordering:
|
|
joined_room_ids.add(room_id)
|
|
continue
|
|
|
|
logger.info("User joined room after current token: %s", room_id)
|
|
|
|
extrems = yield self.store.get_forward_extremeties_for_room(
|
|
room_id, stream_ordering,
|
|
)
|
|
users_in_room = yield self.state.get_current_user_in_room(
|
|
room_id, extrems,
|
|
)
|
|
if user_id in users_in_room:
|
|
joined_room_ids.add(room_id)
|
|
|
|
joined_room_ids = frozenset(joined_room_ids)
|
|
defer.returnValue(joined_room_ids)
|
|
|
|
|
|
def _action_has_highlight(actions):
|
|
for action in actions:
|
|
try:
|
|
if action.get("set_tweak", None) == "highlight":
|
|
return action.get("value", True)
|
|
except AttributeError:
|
|
pass
|
|
|
|
return False
|
|
|
|
|
|
def _calculate_state(
|
|
timeline_contains, timeline_start, previous, current, lazy_load_members,
|
|
):
|
|
"""Works out what state to include in a sync response.
|
|
|
|
Args:
|
|
timeline_contains (dict): state in the timeline
|
|
timeline_start (dict): state at the start of the timeline
|
|
previous (dict): state at the end of the previous sync (or empty dict
|
|
if this is an initial sync)
|
|
current (dict): state at the end of the timeline
|
|
lazy_load_members (bool): whether to return members from timeline_start
|
|
or not. assumes that timeline_start has already been filtered to
|
|
include only the members the client needs to know about.
|
|
|
|
Returns:
|
|
dict
|
|
"""
|
|
event_id_to_key = {
|
|
e: key
|
|
for key, e in itertools.chain(
|
|
iteritems(timeline_contains),
|
|
iteritems(previous),
|
|
iteritems(timeline_start),
|
|
iteritems(current),
|
|
)
|
|
}
|
|
|
|
c_ids = set(e for e in itervalues(current))
|
|
ts_ids = set(e for e in itervalues(timeline_start))
|
|
p_ids = set(e for e in itervalues(previous))
|
|
tc_ids = set(e for e in itervalues(timeline_contains))
|
|
|
|
# If we are lazyloading room members, we explicitly add the membership events
|
|
# for the senders in the timeline into the state block returned by /sync,
|
|
# as we may not have sent them to the client before. We find these membership
|
|
# events by filtering them out of timeline_start, which has already been filtered
|
|
# to only include membership events for the senders in the timeline.
|
|
# In practice, we can do this by removing them from the p_ids list,
|
|
# which is the list of relevant state we know we have already sent to the client.
|
|
# see https://github.com/matrix-org/synapse/pull/2970
|
|
# /files/efcdacad7d1b7f52f879179701c7e0d9b763511f#r204732809
|
|
|
|
if lazy_load_members:
|
|
p_ids.difference_update(
|
|
e for t, e in iteritems(timeline_start)
|
|
if t[0] == EventTypes.Member
|
|
)
|
|
|
|
state_ids = ((c_ids | ts_ids) - p_ids) - tc_ids
|
|
|
|
return {
|
|
event_id_to_key[e]: e for e in state_ids
|
|
}
|
|
|
|
|
|
class SyncResultBuilder(object):
|
|
"Used to help build up a new SyncResult for a user"
|
|
def __init__(self, sync_config, full_state, since_token, now_token,
|
|
joined_room_ids):
|
|
"""
|
|
Args:
|
|
sync_config(SyncConfig)
|
|
full_state(bool): The full_state flag as specified by user
|
|
since_token(StreamToken): The token supplied by user, or None.
|
|
now_token(StreamToken): The token to sync up to.
|
|
"""
|
|
self.sync_config = sync_config
|
|
self.full_state = full_state
|
|
self.since_token = since_token
|
|
self.now_token = now_token
|
|
self.joined_room_ids = joined_room_ids
|
|
|
|
self.presence = []
|
|
self.account_data = []
|
|
self.joined = []
|
|
self.invited = []
|
|
self.archived = []
|
|
self.device = []
|
|
self.groups = None
|
|
self.to_device = []
|
|
|
|
|
|
class RoomSyncResultBuilder(object):
|
|
"""Stores information needed to create either a `JoinedSyncResult` or
|
|
`ArchivedSyncResult`.
|
|
"""
|
|
def __init__(self, room_id, rtype, events, newly_joined, full_state,
|
|
since_token, upto_token):
|
|
"""
|
|
Args:
|
|
room_id(str)
|
|
rtype(str): One of `"joined"` or `"archived"`
|
|
events(list): List of events to include in the room, (more events
|
|
may be added when generating result).
|
|
newly_joined(bool): If the user has newly joined the room
|
|
full_state(bool): Whether the full state should be sent in result
|
|
since_token(StreamToken): Earliest point to return events from, or None
|
|
upto_token(StreamToken): Latest point to return events from.
|
|
"""
|
|
self.room_id = room_id
|
|
self.rtype = rtype
|
|
self.events = events
|
|
self.newly_joined = newly_joined
|
|
self.full_state = full_state
|
|
self.since_token = since_token
|
|
self.upto_token = upto_token
|