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1
changelog.d/6218.misc
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1
changelog.d/6218.misc
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@ -0,0 +1 @@
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Convert EventContext to an attrs.
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@ -12,9 +12,9 @@
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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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from six import iteritems
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import attr
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from frozendict import frozendict
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from twisted.internet import defer
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@ -22,7 +22,8 @@ from twisted.internet import defer
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from synapse.logging.context import make_deferred_yieldable, run_in_background
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class EventContext(object):
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@attr.s(slots=True)
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class EventContext:
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"""
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Attributes:
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state_group (int|None): state group id, if the state has been stored
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@ -31,9 +32,6 @@ class EventContext(object):
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rejected (bool|str): A rejection reason if the event was rejected, else
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False
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push_actions (list[(str, list[object])]): list of (user_id, actions)
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tuples
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prev_group (int): Previously persisted state group. ``None`` for an
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outlier.
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delta_ids (dict[(str, str), str]): Delta from ``prev_group``.
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@ -42,6 +40,8 @@ class EventContext(object):
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prev_state_events (?): XXX: is this ever set to anything other than
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the empty list?
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app_service: FIXME
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_current_state_ids (dict[(str, str), str]|None):
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The current state map including the current event. None if outlier
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or we haven't fetched the state from DB yet.
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@ -67,49 +67,33 @@ class EventContext(object):
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Only set when state has not been fetched yet.
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"""
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__slots__ = [
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"state_group",
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"rejected",
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"prev_group",
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"delta_ids",
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"prev_state_events",
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"app_service",
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"_current_state_ids",
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"_prev_state_ids",
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"_prev_state_id",
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"_event_type",
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"_event_state_key",
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"_fetching_state_deferred",
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]
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state_group = attr.ib(default=None)
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rejected = attr.ib(default=False)
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prev_group = attr.ib(default=None)
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delta_ids = attr.ib(default=None)
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prev_state_events = attr.ib(default=attr.Factory(list))
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app_service = attr.ib(default=None)
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def __init__(self):
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self.prev_state_events = []
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self.rejected = False
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self.app_service = None
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_current_state_ids = attr.ib(default=None)
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_prev_state_ids = attr.ib(default=None)
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_prev_state_id = attr.ib(default=None)
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_event_type = attr.ib(default=None)
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_event_state_key = attr.ib(default=None)
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_fetching_state_deferred = attr.ib(default=None)
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@staticmethod
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def with_state(
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state_group, current_state_ids, prev_state_ids, prev_group=None, delta_ids=None
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):
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context = EventContext()
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# The current state including the current event
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context._current_state_ids = current_state_ids
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# The current state excluding the current event
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context._prev_state_ids = prev_state_ids
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context.state_group = state_group
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context._prev_state_id = None
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context._event_type = None
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context._event_state_key = None
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context._fetching_state_deferred = defer.succeed(None)
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# A previously persisted state group and a delta between that
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# and this state.
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context.prev_group = prev_group
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context.delta_ids = delta_ids
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return context
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return EventContext(
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current_state_ids=current_state_ids,
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prev_state_ids=prev_state_ids,
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state_group=state_group,
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fetching_state_deferred=defer.succeed(None),
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prev_group=prev_group,
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delta_ids=delta_ids,
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)
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@defer.inlineCallbacks
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def serialize(self, event, store):
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@ -157,24 +141,18 @@ class EventContext(object):
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Returns:
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EventContext
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"""
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context = EventContext()
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context = EventContext(
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# We use the state_group and prev_state_id stuff to pull the
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# current_state_ids out of the DB and construct prev_state_ids.
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context._prev_state_id = input["prev_state_id"]
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context._event_type = input["event_type"]
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context._event_state_key = input["event_state_key"]
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context._current_state_ids = None
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context._prev_state_ids = None
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context._fetching_state_deferred = None
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context.state_group = input["state_group"]
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context.prev_group = input["prev_group"]
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context.delta_ids = _decode_state_dict(input["delta_ids"])
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context.rejected = input["rejected"]
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context.prev_state_events = input["prev_state_events"]
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prev_state_id=input["prev_state_id"],
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event_type=input["event_type"],
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event_state_key=input["event_state_key"],
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state_group=input["state_group"],
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prev_group=input["prev_group"],
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delta_ids=_decode_state_dict(input["delta_ids"]),
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rejected=input["rejected"],
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prev_state_events=input["prev_state_events"],
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)
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app_service_id = input["app_service_id"]
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if app_service_id:
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@ -15,6 +15,7 @@
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import logging
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from collections import namedtuple
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from typing import Iterable, Tuple
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from six import iteritems, itervalues
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from six.moves import range
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@ -23,6 +24,8 @@ from twisted.internet import defer
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from synapse.api.constants import EventTypes
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from synapse.api.errors import NotFoundError
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from synapse.events import EventBase
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from synapse.events.snapshot import EventContext
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from synapse.storage._base import SQLBaseStore
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from synapse.storage.background_updates import BackgroundUpdateStore
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from synapse.storage.data_stores.main.events_worker import EventsWorkerStore
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@ -1215,7 +1218,9 @@ class StateStore(StateGroupWorkerStore, StateBackgroundUpdateStore):
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def __init__(self, db_conn, hs):
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super(StateStore, self).__init__(db_conn, hs)
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def _store_event_state_mappings_txn(self, txn, events_and_contexts):
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def _store_event_state_mappings_txn(
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self, txn, events_and_contexts: Iterable[Tuple[EventBase, EventContext]]
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):
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state_groups = {}
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for event, context in events_and_contexts:
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if event.internal_metadata.is_outlier():
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