forked from MirrorHub/synapse
Merge pull request #3673 from matrix-org/erikj/refactor_state_handler
Refactor state module to support multiple room versions
This commit is contained in:
commit
3bf8bab8f9
13 changed files with 437 additions and 277 deletions
1
changelog.d/3673.misc
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1
changelog.d/3673.misc
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@ -0,0 +1 @@
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Refactor state module to support multiple room versions
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@ -97,9 +97,14 @@ class ThirdPartyEntityKind(object):
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LOCATION = "location"
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LOCATION = "location"
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class RoomVersions(object):
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V1 = "1"
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VDH_TEST = "vdh-test-version"
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# the version we will give rooms which are created on this server
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# the version we will give rooms which are created on this server
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DEFAULT_ROOM_VERSION = "1"
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DEFAULT_ROOM_VERSION = RoomVersions.V1
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# vdh-test-version is a placeholder to get room versioning support working and tested
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# vdh-test-version is a placeholder to get room versioning support working and tested
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# until we have a working v2.
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# until we have a working v2.
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KNOWN_ROOM_VERSIONS = {"1", "vdh-test-version"}
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KNOWN_ROOM_VERSIONS = {RoomVersions.V1, RoomVersions.VDH_TEST}
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@ -291,8 +291,9 @@ class FederationHandler(BaseHandler):
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ev_ids, get_prev_content=False, check_redacted=False
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ev_ids, get_prev_content=False, check_redacted=False
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)
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)
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room_version = yield self.store.get_room_version(pdu.room_id)
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state_map = yield resolve_events_with_factory(
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state_map = yield resolve_events_with_factory(
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state_groups, {pdu.event_id: pdu}, fetch
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room_version, state_groups, {pdu.event_id: pdu}, fetch
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)
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)
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state = (yield self.store.get_events(state_map.values())).values()
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state = (yield self.store.get_events(state_map.values())).values()
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@ -1828,7 +1829,10 @@ class FederationHandler(BaseHandler):
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(d.type, d.state_key): d for d in different_events if d
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(d.type, d.state_key): d for d in different_events if d
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})
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})
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room_version = yield self.store.get_room_version(event.room_id)
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new_state = self.state_handler.resolve_events(
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new_state = self.state_handler.resolve_events(
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room_version,
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[list(local_view.values()), list(remote_view.values())],
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[list(local_view.values()), list(remote_view.values())],
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event
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event
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)
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)
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@ -344,6 +344,7 @@ class RoomMemberHandler(object):
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latest_event_ids = (
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latest_event_ids = (
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event_id for (event_id, _, _) in prev_events_and_hashes
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event_id for (event_id, _, _) in prev_events_and_hashes
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)
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)
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current_state_ids = yield self.state_handler.get_current_state_ids(
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current_state_ids = yield self.state_handler.get_current_state_ids(
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room_id, latest_event_ids=latest_event_ids,
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room_id, latest_event_ids=latest_event_ids,
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)
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)
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@ -1,5 +1,6 @@
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# -*- coding: utf-8 -*-
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# -*- coding: utf-8 -*-
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# Copyright 2014-2016 OpenMarket Ltd
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# Copyright 2014-2016 OpenMarket Ltd
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# Copyright 2018 New Vector Ltd
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#
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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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 not use this file except in compliance with the License.
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@ -13,21 +14,18 @@
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# See the License for the specific language governing permissions and
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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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# limitations under the License.
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import hashlib
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import logging
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import logging
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from collections import namedtuple
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from collections import namedtuple
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from six import iteritems, iterkeys, itervalues
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from six import iteritems, itervalues
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from frozendict import frozendict
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from frozendict import frozendict
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from twisted.internet import defer
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from twisted.internet import defer
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from synapse import event_auth
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from synapse.api.constants import EventTypes, RoomVersions
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from synapse.api.constants import EventTypes
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from synapse.api.errors import AuthError
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from synapse.events.snapshot import EventContext
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from synapse.events.snapshot import EventContext
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from synapse.state import v1
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from synapse.util.async_helpers import Linearizer
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from synapse.util.async_helpers import Linearizer
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from synapse.util.caches import get_cache_factor_for
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from synapse.util.caches import get_cache_factor_for
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from synapse.util.caches.expiringcache import ExpiringCache
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from synapse.util.caches.expiringcache import ExpiringCache
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@ -264,6 +262,7 @@ class StateHandler(object):
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defer.returnValue(context)
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defer.returnValue(context)
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logger.debug("calling resolve_state_groups from compute_event_context")
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logger.debug("calling resolve_state_groups from compute_event_context")
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entry = yield self.resolve_state_groups_for_events(
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entry = yield self.resolve_state_groups_for_events(
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event.room_id, [e for e, _ in event.prev_events],
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event.room_id, [e for e, _ in event.prev_events],
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)
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)
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@ -338,8 +337,11 @@ class StateHandler(object):
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event, resolves conflicts between them and returns them.
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event, resolves conflicts between them and returns them.
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Args:
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Args:
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room_id (str):
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room_id (str)
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event_ids (list[str]):
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event_ids (list[str])
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explicit_room_version (str|None): If set uses the the given room
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version to choose the resolution algorithm. If None, then
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checks the database for room version.
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Returns:
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Returns:
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Deferred[_StateCacheEntry]: resolved state
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Deferred[_StateCacheEntry]: resolved state
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@ -353,7 +355,12 @@ class StateHandler(object):
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room_id, event_ids
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room_id, event_ids
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)
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)
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if len(state_groups_ids) == 1:
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if len(state_groups_ids) == 0:
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defer.returnValue(_StateCacheEntry(
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state={},
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state_group=None,
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))
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elif len(state_groups_ids) == 1:
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name, state_list = list(state_groups_ids.items()).pop()
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name, state_list = list(state_groups_ids.items()).pop()
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prev_group, delta_ids = yield self.store.get_state_group_delta(name)
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prev_group, delta_ids = yield self.store.get_state_group_delta(name)
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@ -365,8 +372,11 @@ class StateHandler(object):
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delta_ids=delta_ids,
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delta_ids=delta_ids,
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))
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))
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room_version = yield self.store.get_room_version(room_id)
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result = yield self._state_resolution_handler.resolve_state_groups(
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result = yield self._state_resolution_handler.resolve_state_groups(
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room_id, state_groups_ids, None, self._state_map_factory,
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room_id, room_version, state_groups_ids, None,
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self._state_map_factory,
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)
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)
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defer.returnValue(result)
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defer.returnValue(result)
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@ -375,7 +385,7 @@ class StateHandler(object):
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ev_ids, get_prev_content=False, check_redacted=False,
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ev_ids, get_prev_content=False, check_redacted=False,
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)
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)
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def resolve_events(self, state_sets, event):
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def resolve_events(self, room_version, state_sets, event):
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logger.info(
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logger.info(
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"Resolving state for %s with %d groups", event.room_id, len(state_sets)
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"Resolving state for %s with %d groups", event.room_id, len(state_sets)
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)
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)
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@ -391,7 +401,9 @@ class StateHandler(object):
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}
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}
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with Measure(self.clock, "state._resolve_events"):
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with Measure(self.clock, "state._resolve_events"):
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new_state = resolve_events_with_state_map(state_set_ids, state_map)
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new_state = resolve_events_with_state_map(
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room_version, state_set_ids, state_map,
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)
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new_state = {
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new_state = {
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key: state_map[ev_id] for key, ev_id in iteritems(new_state)
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key: state_map[ev_id] for key, ev_id in iteritems(new_state)
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@ -430,7 +442,7 @@ class StateResolutionHandler(object):
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@defer.inlineCallbacks
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@defer.inlineCallbacks
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@log_function
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@log_function
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def resolve_state_groups(
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def resolve_state_groups(
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self, room_id, state_groups_ids, event_map, state_map_factory,
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self, room_id, room_version, state_groups_ids, event_map, state_map_factory,
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):
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):
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"""Resolves conflicts between a set of state groups
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"""Resolves conflicts between a set of state groups
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@ -439,6 +451,7 @@ class StateResolutionHandler(object):
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Args:
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Args:
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room_id (str): room we are resolving for (used for logging)
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room_id (str): room we are resolving for (used for logging)
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room_version (str): version of the room
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state_groups_ids (dict[int, dict[(str, str), str]]):
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state_groups_ids (dict[int, dict[(str, str), str]]):
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map from state group id to the state in that state group
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map from state group id to the state in that state group
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(where 'state' is a map from state key to event id)
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(where 'state' is a map from state key to event id)
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@ -492,6 +505,7 @@ class StateResolutionHandler(object):
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logger.info("Resolving conflicted state for %r", room_id)
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logger.info("Resolving conflicted state for %r", room_id)
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with Measure(self.clock, "state._resolve_events"):
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with Measure(self.clock, "state._resolve_events"):
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new_state = yield resolve_events_with_factory(
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new_state = yield resolve_events_with_factory(
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room_version,
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list(itervalues(state_groups_ids)),
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list(itervalues(state_groups_ids)),
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event_map=event_map,
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event_map=event_map,
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state_map_factory=state_map_factory,
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state_map_factory=state_map_factory,
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@ -575,16 +589,10 @@ def _make_state_cache_entry(
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)
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)
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def _ordered_events(events):
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def resolve_events_with_state_map(room_version, state_sets, state_map):
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def key_func(e):
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return -int(e.depth), hashlib.sha1(e.event_id.encode('ascii')).hexdigest()
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return sorted(events, key=key_func)
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def resolve_events_with_state_map(state_sets, state_map):
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"""
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"""
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Args:
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Args:
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room_version(str): Version of the room
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state_sets(list): List of dicts of (type, state_key) -> event_id,
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state_sets(list): List of dicts of (type, state_key) -> event_id,
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which are the different state groups to resolve.
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which are the different state groups to resolve.
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state_map(dict): a dict from event_id to event, for all events in
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state_map(dict): a dict from event_id to event, for all events in
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@ -594,75 +602,23 @@ def resolve_events_with_state_map(state_sets, state_map):
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dict[(str, str), str]:
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dict[(str, str), str]:
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a map from (type, state_key) to event_id.
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a map from (type, state_key) to event_id.
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"""
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"""
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if len(state_sets) == 1:
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if room_version in (RoomVersions.V1, RoomVersions.VDH_TEST,):
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return state_sets[0]
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return v1.resolve_events_with_state_map(
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state_sets, state_map,
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unconflicted_state, conflicted_state = _seperate(
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)
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state_sets,
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else:
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)
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# This should only happen if we added a version but forgot to add it to
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# the list above.
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auth_events = _create_auth_events_from_maps(
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raise Exception(
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unconflicted_state, conflicted_state, state_map
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"No state resolution algorithm defined for version %r" % (room_version,)
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)
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)
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return _resolve_with_state(
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unconflicted_state, conflicted_state, auth_events, state_map
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)
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def _seperate(state_sets):
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def resolve_events_with_factory(room_version, state_sets, event_map, state_map_factory):
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"""Takes the state_sets and figures out which keys are conflicted and
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which aren't. i.e., which have multiple different event_ids associated
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with them in different state sets.
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Args:
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state_sets(iterable[dict[(str, str), str]]):
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List of dicts of (type, state_key) -> event_id, which are the
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different state groups to resolve.
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Returns:
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(dict[(str, str), str], dict[(str, str), set[str]]):
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A tuple of (unconflicted_state, conflicted_state), where:
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unconflicted_state is a dict mapping (type, state_key)->event_id
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for unconflicted state keys.
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conflicted_state is a dict mapping (type, state_key) to a set of
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event ids for conflicted state keys.
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"""
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state_set_iterator = iter(state_sets)
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unconflicted_state = dict(next(state_set_iterator))
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conflicted_state = {}
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for state_set in state_set_iterator:
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for key, value in iteritems(state_set):
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# Check if there is an unconflicted entry for the state key.
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unconflicted_value = unconflicted_state.get(key)
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if unconflicted_value is None:
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# There isn't an unconflicted entry so check if there is a
|
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# conflicted entry.
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ls = conflicted_state.get(key)
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if ls is None:
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# There wasn't a conflicted entry so haven't seen this key before.
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# Therefore it isn't conflicted yet.
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unconflicted_state[key] = value
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else:
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# This key is already conflicted, add our value to the conflict set.
|
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ls.add(value)
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elif unconflicted_value != value:
|
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# If the unconflicted value is not the same as our value then we
|
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# have a new conflict. So move the key from the unconflicted_state
|
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# to the conflicted state.
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conflicted_state[key] = {value, unconflicted_value}
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unconflicted_state.pop(key, None)
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|
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return unconflicted_state, conflicted_state
|
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|
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|
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@defer.inlineCallbacks
|
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def resolve_events_with_factory(state_sets, event_map, state_map_factory):
|
|
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"""
|
"""
|
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Args:
|
Args:
|
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|
room_version(str): Version of the room
|
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|
|
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state_sets(list): List of dicts of (type, state_key) -> event_id,
|
state_sets(list): List of dicts of (type, state_key) -> event_id,
|
||||||
which are the different state groups to resolve.
|
which are the different state groups to resolve.
|
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|
|
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|
@ -682,185 +638,13 @@ def resolve_events_with_factory(state_sets, event_map, state_map_factory):
|
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Deferred[dict[(str, str), str]]:
|
Deferred[dict[(str, str), str]]:
|
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a map from (type, state_key) to event_id.
|
a map from (type, state_key) to event_id.
|
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"""
|
"""
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if len(state_sets) == 1:
|
if room_version in (RoomVersions.V1, RoomVersions.VDH_TEST,):
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defer.returnValue(state_sets[0])
|
return v1.resolve_events_with_factory(
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|
state_sets, event_map, state_map_factory,
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unconflicted_state, conflicted_state = _seperate(
|
)
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state_sets,
|
else:
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)
|
# This should only happen if we added a version but forgot to add it to
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|
# the list above.
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needed_events = set(
|
raise Exception(
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event_id
|
"No state resolution algorithm defined for version %r" % (room_version,)
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for event_ids in itervalues(conflicted_state)
|
|
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for event_id in event_ids
|
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)
|
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if event_map is not None:
|
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needed_events -= set(iterkeys(event_map))
|
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|
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logger.info("Asking for %d conflicted events", len(needed_events))
|
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|
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# dict[str, FrozenEvent]: a map from state event id to event. Only includes
|
|
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# the state events which are in conflict (and those in event_map)
|
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state_map = yield state_map_factory(needed_events)
|
|
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if event_map is not None:
|
|
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state_map.update(event_map)
|
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|
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# get the ids of the auth events which allow us to authenticate the
|
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# conflicted state, picking only from the unconflicting state.
|
|
||||||
#
|
|
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# dict[(str, str), str]: a map from state key to event id
|
|
||||||
auth_events = _create_auth_events_from_maps(
|
|
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unconflicted_state, conflicted_state, state_map
|
|
||||||
)
|
|
||||||
|
|
||||||
new_needed_events = set(itervalues(auth_events))
|
|
||||||
new_needed_events -= needed_events
|
|
||||||
if event_map is not None:
|
|
||||||
new_needed_events -= set(iterkeys(event_map))
|
|
||||||
|
|
||||||
logger.info("Asking for %d auth events", len(new_needed_events))
|
|
||||||
|
|
||||||
state_map_new = yield state_map_factory(new_needed_events)
|
|
||||||
state_map.update(state_map_new)
|
|
||||||
|
|
||||||
defer.returnValue(_resolve_with_state(
|
|
||||||
unconflicted_state, conflicted_state, auth_events, state_map
|
|
||||||
))
|
|
||||||
|
|
||||||
|
|
||||||
def _create_auth_events_from_maps(unconflicted_state, conflicted_state, state_map):
|
|
||||||
auth_events = {}
|
|
||||||
for event_ids in itervalues(conflicted_state):
|
|
||||||
for event_id in event_ids:
|
|
||||||
if event_id in state_map:
|
|
||||||
keys = event_auth.auth_types_for_event(state_map[event_id])
|
|
||||||
for key in keys:
|
|
||||||
if key not in auth_events:
|
|
||||||
event_id = unconflicted_state.get(key, None)
|
|
||||||
if event_id:
|
|
||||||
auth_events[key] = event_id
|
|
||||||
return auth_events
|
|
||||||
|
|
||||||
|
|
||||||
def _resolve_with_state(unconflicted_state_ids, conflicted_state_ids, auth_event_ids,
|
|
||||||
state_map):
|
|
||||||
conflicted_state = {}
|
|
||||||
for key, event_ids in iteritems(conflicted_state_ids):
|
|
||||||
events = [state_map[ev_id] for ev_id in event_ids if ev_id in state_map]
|
|
||||||
if len(events) > 1:
|
|
||||||
conflicted_state[key] = events
|
|
||||||
elif len(events) == 1:
|
|
||||||
unconflicted_state_ids[key] = events[0].event_id
|
|
||||||
|
|
||||||
auth_events = {
|
|
||||||
key: state_map[ev_id]
|
|
||||||
for key, ev_id in iteritems(auth_event_ids)
|
|
||||||
if ev_id in state_map
|
|
||||||
}
|
|
||||||
|
|
||||||
try:
|
|
||||||
resolved_state = _resolve_state_events(
|
|
||||||
conflicted_state, auth_events
|
|
||||||
)
|
)
|
||||||
except Exception:
|
|
||||||
logger.exception("Failed to resolve state")
|
|
||||||
raise
|
|
||||||
|
|
||||||
new_state = unconflicted_state_ids
|
|
||||||
for key, event in iteritems(resolved_state):
|
|
||||||
new_state[key] = event.event_id
|
|
||||||
|
|
||||||
return new_state
|
|
||||||
|
|
||||||
|
|
||||||
def _resolve_state_events(conflicted_state, auth_events):
|
|
||||||
""" This is where we actually decide which of the conflicted state to
|
|
||||||
use.
|
|
||||||
|
|
||||||
We resolve conflicts in the following order:
|
|
||||||
1. power levels
|
|
||||||
2. join rules
|
|
||||||
3. memberships
|
|
||||||
4. other events.
|
|
||||||
"""
|
|
||||||
resolved_state = {}
|
|
||||||
if POWER_KEY in conflicted_state:
|
|
||||||
events = conflicted_state[POWER_KEY]
|
|
||||||
logger.debug("Resolving conflicted power levels %r", events)
|
|
||||||
resolved_state[POWER_KEY] = _resolve_auth_events(
|
|
||||||
events, auth_events)
|
|
||||||
|
|
||||||
auth_events.update(resolved_state)
|
|
||||||
|
|
||||||
for key, events in iteritems(conflicted_state):
|
|
||||||
if key[0] == EventTypes.JoinRules:
|
|
||||||
logger.debug("Resolving conflicted join rules %r", events)
|
|
||||||
resolved_state[key] = _resolve_auth_events(
|
|
||||||
events,
|
|
||||||
auth_events
|
|
||||||
)
|
|
||||||
|
|
||||||
auth_events.update(resolved_state)
|
|
||||||
|
|
||||||
for key, events in iteritems(conflicted_state):
|
|
||||||
if key[0] == EventTypes.Member:
|
|
||||||
logger.debug("Resolving conflicted member lists %r", events)
|
|
||||||
resolved_state[key] = _resolve_auth_events(
|
|
||||||
events,
|
|
||||||
auth_events
|
|
||||||
)
|
|
||||||
|
|
||||||
auth_events.update(resolved_state)
|
|
||||||
|
|
||||||
for key, events in iteritems(conflicted_state):
|
|
||||||
if key not in resolved_state:
|
|
||||||
logger.debug("Resolving conflicted state %r:%r", key, events)
|
|
||||||
resolved_state[key] = _resolve_normal_events(
|
|
||||||
events, auth_events
|
|
||||||
)
|
|
||||||
|
|
||||||
return resolved_state
|
|
||||||
|
|
||||||
|
|
||||||
def _resolve_auth_events(events, auth_events):
|
|
||||||
reverse = [i for i in reversed(_ordered_events(events))]
|
|
||||||
|
|
||||||
auth_keys = set(
|
|
||||||
key
|
|
||||||
for event in events
|
|
||||||
for key in event_auth.auth_types_for_event(event)
|
|
||||||
)
|
|
||||||
|
|
||||||
new_auth_events = {}
|
|
||||||
for key in auth_keys:
|
|
||||||
auth_event = auth_events.get(key, None)
|
|
||||||
if auth_event:
|
|
||||||
new_auth_events[key] = auth_event
|
|
||||||
|
|
||||||
auth_events = new_auth_events
|
|
||||||
|
|
||||||
prev_event = reverse[0]
|
|
||||||
for event in reverse[1:]:
|
|
||||||
auth_events[(prev_event.type, prev_event.state_key)] = prev_event
|
|
||||||
try:
|
|
||||||
# The signatures have already been checked at this point
|
|
||||||
event_auth.check(event, auth_events, do_sig_check=False, do_size_check=False)
|
|
||||||
prev_event = event
|
|
||||||
except AuthError:
|
|
||||||
return prev_event
|
|
||||||
|
|
||||||
return event
|
|
||||||
|
|
||||||
|
|
||||||
def _resolve_normal_events(events, auth_events):
|
|
||||||
for event in _ordered_events(events):
|
|
||||||
try:
|
|
||||||
# The signatures have already been checked at this point
|
|
||||||
event_auth.check(event, auth_events, do_sig_check=False, do_size_check=False)
|
|
||||||
return event
|
|
||||||
except AuthError:
|
|
||||||
pass
|
|
||||||
|
|
||||||
# Use the last event (the one with the least depth) if they all fail
|
|
||||||
# the auth check.
|
|
||||||
return event
|
|
321
synapse/state/v1.py
Normal file
321
synapse/state/v1.py
Normal file
|
@ -0,0 +1,321 @@
|
||||||
|
# -*- coding: utf-8 -*-
|
||||||
|
# Copyright 2018 New Vector Ltd
|
||||||
|
#
|
||||||
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
||||||
|
# you may not use this file except in compliance with the License.
|
||||||
|
# You may obtain a copy of the License at
|
||||||
|
#
|
||||||
|
# http://www.apache.org/licenses/LICENSE-2.0
|
||||||
|
#
|
||||||
|
# Unless required by applicable law or agreed to in writing, software
|
||||||
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
||||||
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||||
|
# See the License for the specific language governing permissions and
|
||||||
|
# limitations under the License.
|
||||||
|
|
||||||
|
import hashlib
|
||||||
|
import logging
|
||||||
|
|
||||||
|
from six import iteritems, iterkeys, itervalues
|
||||||
|
|
||||||
|
from twisted.internet import defer
|
||||||
|
|
||||||
|
from synapse import event_auth
|
||||||
|
from synapse.api.constants import EventTypes
|
||||||
|
from synapse.api.errors import AuthError
|
||||||
|
|
||||||
|
logger = logging.getLogger(__name__)
|
||||||
|
|
||||||
|
|
||||||
|
POWER_KEY = (EventTypes.PowerLevels, "")
|
||||||
|
|
||||||
|
|
||||||
|
def resolve_events_with_state_map(state_sets, state_map):
|
||||||
|
"""
|
||||||
|
Args:
|
||||||
|
state_sets(list): List of dicts of (type, state_key) -> event_id,
|
||||||
|
which are the different state groups to resolve.
|
||||||
|
state_map(dict): a dict from event_id to event, for all events in
|
||||||
|
state_sets.
|
||||||
|
|
||||||
|
Returns
|
||||||
|
dict[(str, str), str]:
|
||||||
|
a map from (type, state_key) to event_id.
|
||||||
|
"""
|
||||||
|
if len(state_sets) == 1:
|
||||||
|
return state_sets[0]
|
||||||
|
|
||||||
|
unconflicted_state, conflicted_state = _seperate(
|
||||||
|
state_sets,
|
||||||
|
)
|
||||||
|
|
||||||
|
auth_events = _create_auth_events_from_maps(
|
||||||
|
unconflicted_state, conflicted_state, state_map
|
||||||
|
)
|
||||||
|
|
||||||
|
return _resolve_with_state(
|
||||||
|
unconflicted_state, conflicted_state, auth_events, state_map
|
||||||
|
)
|
||||||
|
|
||||||
|
|
||||||
|
@defer.inlineCallbacks
|
||||||
|
def resolve_events_with_factory(state_sets, event_map, state_map_factory):
|
||||||
|
"""
|
||||||
|
Args:
|
||||||
|
state_sets(list): List of dicts of (type, state_key) -> event_id,
|
||||||
|
which are the different state groups to resolve.
|
||||||
|
|
||||||
|
event_map(dict[str,FrozenEvent]|None):
|
||||||
|
a dict from event_id to event, for any events that we happen to
|
||||||
|
have in flight (eg, those currently being persisted). This will be
|
||||||
|
used as a starting point fof finding the state we need; any missing
|
||||||
|
events will be requested via state_map_factory.
|
||||||
|
|
||||||
|
If None, all events will be fetched via state_map_factory.
|
||||||
|
|
||||||
|
state_map_factory(func): will be called
|
||||||
|
with a list of event_ids that are needed, and should return with
|
||||||
|
a Deferred of dict of event_id to event.
|
||||||
|
|
||||||
|
Returns
|
||||||
|
Deferred[dict[(str, str), str]]:
|
||||||
|
a map from (type, state_key) to event_id.
|
||||||
|
"""
|
||||||
|
if len(state_sets) == 1:
|
||||||
|
defer.returnValue(state_sets[0])
|
||||||
|
|
||||||
|
unconflicted_state, conflicted_state = _seperate(
|
||||||
|
state_sets,
|
||||||
|
)
|
||||||
|
|
||||||
|
needed_events = set(
|
||||||
|
event_id
|
||||||
|
for event_ids in itervalues(conflicted_state)
|
||||||
|
for event_id in event_ids
|
||||||
|
)
|
||||||
|
if event_map is not None:
|
||||||
|
needed_events -= set(iterkeys(event_map))
|
||||||
|
|
||||||
|
logger.info("Asking for %d conflicted events", len(needed_events))
|
||||||
|
|
||||||
|
# dict[str, FrozenEvent]: a map from state event id to event. Only includes
|
||||||
|
# the state events which are in conflict (and those in event_map)
|
||||||
|
state_map = yield state_map_factory(needed_events)
|
||||||
|
if event_map is not None:
|
||||||
|
state_map.update(event_map)
|
||||||
|
|
||||||
|
# get the ids of the auth events which allow us to authenticate the
|
||||||
|
# conflicted state, picking only from the unconflicting state.
|
||||||
|
#
|
||||||
|
# dict[(str, str), str]: a map from state key to event id
|
||||||
|
auth_events = _create_auth_events_from_maps(
|
||||||
|
unconflicted_state, conflicted_state, state_map
|
||||||
|
)
|
||||||
|
|
||||||
|
new_needed_events = set(itervalues(auth_events))
|
||||||
|
new_needed_events -= needed_events
|
||||||
|
if event_map is not None:
|
||||||
|
new_needed_events -= set(iterkeys(event_map))
|
||||||
|
|
||||||
|
logger.info("Asking for %d auth events", len(new_needed_events))
|
||||||
|
|
||||||
|
state_map_new = yield state_map_factory(new_needed_events)
|
||||||
|
state_map.update(state_map_new)
|
||||||
|
|
||||||
|
defer.returnValue(_resolve_with_state(
|
||||||
|
unconflicted_state, conflicted_state, auth_events, state_map
|
||||||
|
))
|
||||||
|
|
||||||
|
|
||||||
|
def _seperate(state_sets):
|
||||||
|
"""Takes the state_sets and figures out which keys are conflicted and
|
||||||
|
which aren't. i.e., which have multiple different event_ids associated
|
||||||
|
with them in different state sets.
|
||||||
|
|
||||||
|
Args:
|
||||||
|
state_sets(iterable[dict[(str, str), str]]):
|
||||||
|
List of dicts of (type, state_key) -> event_id, which are the
|
||||||
|
different state groups to resolve.
|
||||||
|
|
||||||
|
Returns:
|
||||||
|
(dict[(str, str), str], dict[(str, str), set[str]]):
|
||||||
|
A tuple of (unconflicted_state, conflicted_state), where:
|
||||||
|
|
||||||
|
unconflicted_state is a dict mapping (type, state_key)->event_id
|
||||||
|
for unconflicted state keys.
|
||||||
|
|
||||||
|
conflicted_state is a dict mapping (type, state_key) to a set of
|
||||||
|
event ids for conflicted state keys.
|
||||||
|
"""
|
||||||
|
state_set_iterator = iter(state_sets)
|
||||||
|
unconflicted_state = dict(next(state_set_iterator))
|
||||||
|
conflicted_state = {}
|
||||||
|
|
||||||
|
for state_set in state_set_iterator:
|
||||||
|
for key, value in iteritems(state_set):
|
||||||
|
# Check if there is an unconflicted entry for the state key.
|
||||||
|
unconflicted_value = unconflicted_state.get(key)
|
||||||
|
if unconflicted_value is None:
|
||||||
|
# There isn't an unconflicted entry so check if there is a
|
||||||
|
# conflicted entry.
|
||||||
|
ls = conflicted_state.get(key)
|
||||||
|
if ls is None:
|
||||||
|
# There wasn't a conflicted entry so haven't seen this key before.
|
||||||
|
# Therefore it isn't conflicted yet.
|
||||||
|
unconflicted_state[key] = value
|
||||||
|
else:
|
||||||
|
# This key is already conflicted, add our value to the conflict set.
|
||||||
|
ls.add(value)
|
||||||
|
elif unconflicted_value != value:
|
||||||
|
# If the unconflicted value is not the same as our value then we
|
||||||
|
# have a new conflict. So move the key from the unconflicted_state
|
||||||
|
# to the conflicted state.
|
||||||
|
conflicted_state[key] = {value, unconflicted_value}
|
||||||
|
unconflicted_state.pop(key, None)
|
||||||
|
|
||||||
|
return unconflicted_state, conflicted_state
|
||||||
|
|
||||||
|
|
||||||
|
def _create_auth_events_from_maps(unconflicted_state, conflicted_state, state_map):
|
||||||
|
auth_events = {}
|
||||||
|
for event_ids in itervalues(conflicted_state):
|
||||||
|
for event_id in event_ids:
|
||||||
|
if event_id in state_map:
|
||||||
|
keys = event_auth.auth_types_for_event(state_map[event_id])
|
||||||
|
for key in keys:
|
||||||
|
if key not in auth_events:
|
||||||
|
event_id = unconflicted_state.get(key, None)
|
||||||
|
if event_id:
|
||||||
|
auth_events[key] = event_id
|
||||||
|
return auth_events
|
||||||
|
|
||||||
|
|
||||||
|
def _resolve_with_state(unconflicted_state_ids, conflicted_state_ids, auth_event_ids,
|
||||||
|
state_map):
|
||||||
|
conflicted_state = {}
|
||||||
|
for key, event_ids in iteritems(conflicted_state_ids):
|
||||||
|
events = [state_map[ev_id] for ev_id in event_ids if ev_id in state_map]
|
||||||
|
if len(events) > 1:
|
||||||
|
conflicted_state[key] = events
|
||||||
|
elif len(events) == 1:
|
||||||
|
unconflicted_state_ids[key] = events[0].event_id
|
||||||
|
|
||||||
|
auth_events = {
|
||||||
|
key: state_map[ev_id]
|
||||||
|
for key, ev_id in iteritems(auth_event_ids)
|
||||||
|
if ev_id in state_map
|
||||||
|
}
|
||||||
|
|
||||||
|
try:
|
||||||
|
resolved_state = _resolve_state_events(
|
||||||
|
conflicted_state, auth_events
|
||||||
|
)
|
||||||
|
except Exception:
|
||||||
|
logger.exception("Failed to resolve state")
|
||||||
|
raise
|
||||||
|
|
||||||
|
new_state = unconflicted_state_ids
|
||||||
|
for key, event in iteritems(resolved_state):
|
||||||
|
new_state[key] = event.event_id
|
||||||
|
|
||||||
|
return new_state
|
||||||
|
|
||||||
|
|
||||||
|
def _resolve_state_events(conflicted_state, auth_events):
|
||||||
|
""" This is where we actually decide which of the conflicted state to
|
||||||
|
use.
|
||||||
|
|
||||||
|
We resolve conflicts in the following order:
|
||||||
|
1. power levels
|
||||||
|
2. join rules
|
||||||
|
3. memberships
|
||||||
|
4. other events.
|
||||||
|
"""
|
||||||
|
resolved_state = {}
|
||||||
|
if POWER_KEY in conflicted_state:
|
||||||
|
events = conflicted_state[POWER_KEY]
|
||||||
|
logger.debug("Resolving conflicted power levels %r", events)
|
||||||
|
resolved_state[POWER_KEY] = _resolve_auth_events(
|
||||||
|
events, auth_events)
|
||||||
|
|
||||||
|
auth_events.update(resolved_state)
|
||||||
|
|
||||||
|
for key, events in iteritems(conflicted_state):
|
||||||
|
if key[0] == EventTypes.JoinRules:
|
||||||
|
logger.debug("Resolving conflicted join rules %r", events)
|
||||||
|
resolved_state[key] = _resolve_auth_events(
|
||||||
|
events,
|
||||||
|
auth_events
|
||||||
|
)
|
||||||
|
|
||||||
|
auth_events.update(resolved_state)
|
||||||
|
|
||||||
|
for key, events in iteritems(conflicted_state):
|
||||||
|
if key[0] == EventTypes.Member:
|
||||||
|
logger.debug("Resolving conflicted member lists %r", events)
|
||||||
|
resolved_state[key] = _resolve_auth_events(
|
||||||
|
events,
|
||||||
|
auth_events
|
||||||
|
)
|
||||||
|
|
||||||
|
auth_events.update(resolved_state)
|
||||||
|
|
||||||
|
for key, events in iteritems(conflicted_state):
|
||||||
|
if key not in resolved_state:
|
||||||
|
logger.debug("Resolving conflicted state %r:%r", key, events)
|
||||||
|
resolved_state[key] = _resolve_normal_events(
|
||||||
|
events, auth_events
|
||||||
|
)
|
||||||
|
|
||||||
|
return resolved_state
|
||||||
|
|
||||||
|
|
||||||
|
def _resolve_auth_events(events, auth_events):
|
||||||
|
reverse = [i for i in reversed(_ordered_events(events))]
|
||||||
|
|
||||||
|
auth_keys = set(
|
||||||
|
key
|
||||||
|
for event in events
|
||||||
|
for key in event_auth.auth_types_for_event(event)
|
||||||
|
)
|
||||||
|
|
||||||
|
new_auth_events = {}
|
||||||
|
for key in auth_keys:
|
||||||
|
auth_event = auth_events.get(key, None)
|
||||||
|
if auth_event:
|
||||||
|
new_auth_events[key] = auth_event
|
||||||
|
|
||||||
|
auth_events = new_auth_events
|
||||||
|
|
||||||
|
prev_event = reverse[0]
|
||||||
|
for event in reverse[1:]:
|
||||||
|
auth_events[(prev_event.type, prev_event.state_key)] = prev_event
|
||||||
|
try:
|
||||||
|
# The signatures have already been checked at this point
|
||||||
|
event_auth.check(event, auth_events, do_sig_check=False, do_size_check=False)
|
||||||
|
prev_event = event
|
||||||
|
except AuthError:
|
||||||
|
return prev_event
|
||||||
|
|
||||||
|
return event
|
||||||
|
|
||||||
|
|
||||||
|
def _resolve_normal_events(events, auth_events):
|
||||||
|
for event in _ordered_events(events):
|
||||||
|
try:
|
||||||
|
# The signatures have already been checked at this point
|
||||||
|
event_auth.check(event, auth_events, do_sig_check=False, do_size_check=False)
|
||||||
|
return event
|
||||||
|
except AuthError:
|
||||||
|
pass
|
||||||
|
|
||||||
|
# Use the last event (the one with the least depth) if they all fail
|
||||||
|
# the auth check.
|
||||||
|
return event
|
||||||
|
|
||||||
|
|
||||||
|
def _ordered_events(events):
|
||||||
|
def key_func(e):
|
||||||
|
return -int(e.depth), hashlib.sha1(e.event_id.encode('ascii')).hexdigest()
|
||||||
|
|
||||||
|
return sorted(events, key=key_func)
|
|
@ -705,9 +705,11 @@ class EventsStore(EventFederationStore, EventsWorkerStore, BackgroundUpdateStore
|
||||||
}
|
}
|
||||||
|
|
||||||
events_map = {ev.event_id: ev for ev, _ in events_context}
|
events_map = {ev.event_id: ev for ev, _ in events_context}
|
||||||
|
room_version = yield self.get_room_version(room_id)
|
||||||
|
|
||||||
logger.debug("calling resolve_state_groups from preserve_events")
|
logger.debug("calling resolve_state_groups from preserve_events")
|
||||||
res = yield self._state_resolution_handler.resolve_state_groups(
|
res = yield self._state_resolution_handler.resolve_state_groups(
|
||||||
room_id, state_groups, events_map, get_events
|
room_id, room_version, state_groups, events_map, get_events
|
||||||
)
|
)
|
||||||
|
|
||||||
defer.returnValue((res.state, None))
|
defer.returnValue((res.state, None))
|
||||||
|
|
|
@ -112,6 +112,7 @@ class SlavedEventStoreTestCase(BaseSlavedStoreTestCase):
|
||||||
|
|
||||||
@defer.inlineCallbacks
|
@defer.inlineCallbacks
|
||||||
def test_invites(self):
|
def test_invites(self):
|
||||||
|
yield self.persist(type="m.room.create", key="", creator=USER_ID)
|
||||||
yield self.check("get_invited_rooms_for_user", [USER_ID_2], [])
|
yield self.check("get_invited_rooms_for_user", [USER_ID_2], [])
|
||||||
event = yield self.persist(
|
event = yield self.persist(
|
||||||
type="m.room.member", key=USER_ID_2, membership="invite"
|
type="m.room.member", key=USER_ID_2, membership="invite"
|
||||||
|
@ -133,7 +134,7 @@ class SlavedEventStoreTestCase(BaseSlavedStoreTestCase):
|
||||||
|
|
||||||
@defer.inlineCallbacks
|
@defer.inlineCallbacks
|
||||||
def test_push_actions_for_user(self):
|
def test_push_actions_for_user(self):
|
||||||
yield self.persist(type="m.room.create", creator=USER_ID)
|
yield self.persist(type="m.room.create", key="", creator=USER_ID)
|
||||||
yield self.persist(type="m.room.join", key=USER_ID, membership="join")
|
yield self.persist(type="m.room.join", key=USER_ID, membership="join")
|
||||||
yield self.persist(
|
yield self.persist(
|
||||||
type="m.room.join", sender=USER_ID, key=USER_ID_2, membership="join"
|
type="m.room.join", sender=USER_ID, key=USER_ID_2, membership="join"
|
||||||
|
|
|
@ -22,7 +22,7 @@ from synapse.api.constants import EventTypes, Membership
|
||||||
from synapse.types import RoomID, UserID
|
from synapse.types import RoomID, UserID
|
||||||
|
|
||||||
from tests import unittest
|
from tests import unittest
|
||||||
from tests.utils import setup_test_homeserver
|
from tests.utils import create_room, setup_test_homeserver
|
||||||
|
|
||||||
|
|
||||||
class RedactionTestCase(unittest.TestCase):
|
class RedactionTestCase(unittest.TestCase):
|
||||||
|
@ -41,6 +41,8 @@ class RedactionTestCase(unittest.TestCase):
|
||||||
|
|
||||||
self.room1 = RoomID.from_string("!abc123:test")
|
self.room1 = RoomID.from_string("!abc123:test")
|
||||||
|
|
||||||
|
yield create_room(hs, self.room1.to_string(), self.u_alice.to_string())
|
||||||
|
|
||||||
self.depth = 1
|
self.depth = 1
|
||||||
|
|
||||||
@defer.inlineCallbacks
|
@defer.inlineCallbacks
|
||||||
|
|
|
@ -22,7 +22,7 @@ from synapse.api.constants import EventTypes, Membership
|
||||||
from synapse.types import RoomID, UserID
|
from synapse.types import RoomID, UserID
|
||||||
|
|
||||||
from tests import unittest
|
from tests import unittest
|
||||||
from tests.utils import setup_test_homeserver
|
from tests.utils import create_room, setup_test_homeserver
|
||||||
|
|
||||||
|
|
||||||
class RoomMemberStoreTestCase(unittest.TestCase):
|
class RoomMemberStoreTestCase(unittest.TestCase):
|
||||||
|
@ -45,6 +45,8 @@ class RoomMemberStoreTestCase(unittest.TestCase):
|
||||||
|
|
||||||
self.room = RoomID.from_string("!abc123:test")
|
self.room = RoomID.from_string("!abc123:test")
|
||||||
|
|
||||||
|
yield create_room(hs, self.room.to_string(), self.u_alice.to_string())
|
||||||
|
|
||||||
@defer.inlineCallbacks
|
@defer.inlineCallbacks
|
||||||
def inject_room_member(self, room, user, membership, replaces_state=None):
|
def inject_room_member(self, room, user, membership, replaces_state=None):
|
||||||
builder = self.event_builder_factory.new(
|
builder = self.event_builder_factory.new(
|
||||||
|
|
|
@ -18,7 +18,7 @@ from mock import Mock
|
||||||
from twisted.internet import defer
|
from twisted.internet import defer
|
||||||
|
|
||||||
from synapse.api.auth import Auth
|
from synapse.api.auth import Auth
|
||||||
from synapse.api.constants import EventTypes, Membership
|
from synapse.api.constants import EventTypes, Membership, RoomVersions
|
||||||
from synapse.events import FrozenEvent
|
from synapse.events import FrozenEvent
|
||||||
from synapse.state import StateHandler, StateResolutionHandler
|
from synapse.state import StateHandler, StateResolutionHandler
|
||||||
|
|
||||||
|
@ -117,6 +117,9 @@ class StateGroupStore(object):
|
||||||
def register_event_id_state_group(self, event_id, state_group):
|
def register_event_id_state_group(self, event_id, state_group):
|
||||||
self._event_to_state_group[event_id] = state_group
|
self._event_to_state_group[event_id] = state_group
|
||||||
|
|
||||||
|
def get_room_version(self, room_id):
|
||||||
|
return RoomVersions.V1
|
||||||
|
|
||||||
|
|
||||||
class DictObj(dict):
|
class DictObj(dict):
|
||||||
def __init__(self, **kwargs):
|
def __init__(self, **kwargs):
|
||||||
|
@ -176,7 +179,9 @@ class StateTestCase(unittest.TestCase):
|
||||||
def test_branch_no_conflict(self):
|
def test_branch_no_conflict(self):
|
||||||
graph = Graph(
|
graph = Graph(
|
||||||
nodes={
|
nodes={
|
||||||
"START": DictObj(type=EventTypes.Create, state_key="", depth=1),
|
"START": DictObj(
|
||||||
|
type=EventTypes.Create, state_key="", content={}, depth=1,
|
||||||
|
),
|
||||||
"A": DictObj(type=EventTypes.Message, depth=2),
|
"A": DictObj(type=EventTypes.Message, depth=2),
|
||||||
"B": DictObj(type=EventTypes.Message, depth=3),
|
"B": DictObj(type=EventTypes.Message, depth=3),
|
||||||
"C": DictObj(type=EventTypes.Name, state_key="", depth=3),
|
"C": DictObj(type=EventTypes.Name, state_key="", depth=3),
|
||||||
|
|
|
@ -21,7 +21,7 @@ from synapse.events import FrozenEvent
|
||||||
from synapse.visibility import filter_events_for_server
|
from synapse.visibility import filter_events_for_server
|
||||||
|
|
||||||
import tests.unittest
|
import tests.unittest
|
||||||
from tests.utils import setup_test_homeserver
|
from tests.utils import create_room, setup_test_homeserver
|
||||||
|
|
||||||
logger = logging.getLogger(__name__)
|
logger = logging.getLogger(__name__)
|
||||||
|
|
||||||
|
@ -36,6 +36,8 @@ class FilterEventsForServerTestCase(tests.unittest.TestCase):
|
||||||
self.event_builder_factory = self.hs.get_event_builder_factory()
|
self.event_builder_factory = self.hs.get_event_builder_factory()
|
||||||
self.store = self.hs.get_datastore()
|
self.store = self.hs.get_datastore()
|
||||||
|
|
||||||
|
yield create_room(self.hs, TEST_ROOM_ID, "@someone:ROOM")
|
||||||
|
|
||||||
@defer.inlineCallbacks
|
@defer.inlineCallbacks
|
||||||
def test_filtering(self):
|
def test_filtering(self):
|
||||||
#
|
#
|
||||||
|
|
|
@ -24,6 +24,7 @@ from six.moves.urllib import parse as urlparse
|
||||||
|
|
||||||
from twisted.internet import defer, reactor
|
from twisted.internet import defer, reactor
|
||||||
|
|
||||||
|
from synapse.api.constants import EventTypes
|
||||||
from synapse.api.errors import CodeMessageException, cs_error
|
from synapse.api.errors import CodeMessageException, cs_error
|
||||||
from synapse.federation.transport import server
|
from synapse.federation.transport import server
|
||||||
from synapse.http.server import HttpServer
|
from synapse.http.server import HttpServer
|
||||||
|
@ -539,3 +540,32 @@ class DeferredMockCallable(object):
|
||||||
"Expected not to received any calls, got:\n"
|
"Expected not to received any calls, got:\n"
|
||||||
+ "\n".join(["call(%s)" % _format_call(c[0], c[1]) for c in calls])
|
+ "\n".join(["call(%s)" % _format_call(c[0], c[1]) for c in calls])
|
||||||
)
|
)
|
||||||
|
|
||||||
|
|
||||||
|
@defer.inlineCallbacks
|
||||||
|
def create_room(hs, room_id, creator_id):
|
||||||
|
"""Creates and persist a creation event for the given room
|
||||||
|
|
||||||
|
Args:
|
||||||
|
hs
|
||||||
|
room_id (str)
|
||||||
|
creator_id (str)
|
||||||
|
"""
|
||||||
|
|
||||||
|
store = hs.get_datastore()
|
||||||
|
event_builder_factory = hs.get_event_builder_factory()
|
||||||
|
event_creation_handler = hs.get_event_creation_handler()
|
||||||
|
|
||||||
|
builder = event_builder_factory.new({
|
||||||
|
"type": EventTypes.Create,
|
||||||
|
"state_key": "",
|
||||||
|
"sender": creator_id,
|
||||||
|
"room_id": room_id,
|
||||||
|
"content": {},
|
||||||
|
})
|
||||||
|
|
||||||
|
event, context = yield event_creation_handler.create_new_client_event(
|
||||||
|
builder
|
||||||
|
)
|
||||||
|
|
||||||
|
yield store.persist_event(event, context)
|
||||||
|
|
Loading…
Reference in a new issue