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567f88f835
* Populate `internal_metadata.outlier` based on `events` table Rather than relying on `outlier` being in the `internal_metadata` column, populate it based on the `events.outlier` column. * Move `outlier` out of InternalMetadata._dict Ultimately, this will allow us to stop writing it to the database. For now, we have to grandfather it back in so as to maintain compatibility with older versions of Synapse.
141 lines
4.9 KiB
Python
141 lines
4.9 KiB
Python
# -*- coding: utf-8 -*-
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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 logging
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from synapse.api.room_versions import KNOWN_ROOM_VERSIONS
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from synapse.events import make_event_from_dict
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from synapse.events.snapshot import EventContext
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from synapse.http.servlet import parse_json_object_from_request
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from synapse.replication.http._base import ReplicationEndpoint
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from synapse.types import Requester, UserID
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from synapse.util.metrics import Measure
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logger = logging.getLogger(__name__)
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class ReplicationSendEventRestServlet(ReplicationEndpoint):
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"""Handles events newly created on workers, including persisting and
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notifying.
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The API looks like:
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POST /_synapse/replication/send_event/:event_id/:txn_id
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{
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"event": { .. serialized event .. },
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"room_version": .., // "1", "2", "3", etc: the version of the room
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// containing the event
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"event_format_version": .., // 1,2,3 etc: the event format version
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"internal_metadata": { .. serialized internal_metadata .. },
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"outlier": true|false,
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"rejected_reason": .., // The event.rejected_reason field
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"context": { .. serialized event context .. },
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"requester": { .. serialized requester .. },
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"ratelimit": true,
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"extra_users": [],
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}
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200 OK
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{ "stream_id": 12345, "event_id": "$abcdef..." }
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The returned event ID may not match the sent event if it was deduplicated.
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"""
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NAME = "send_event"
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PATH_ARGS = ("event_id",)
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def __init__(self, hs):
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super().__init__(hs)
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self.event_creation_handler = hs.get_event_creation_handler()
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self.store = hs.get_datastore()
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self.storage = hs.get_storage()
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self.clock = hs.get_clock()
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@staticmethod
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async def _serialize_payload(
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event_id, store, event, context, requester, ratelimit, extra_users
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):
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"""
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Args:
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event_id (str)
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store (DataStore)
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requester (Requester)
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event (FrozenEvent)
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context (EventContext)
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ratelimit (bool)
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extra_users (list(UserID)): Any extra users to notify about event
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"""
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serialized_context = await context.serialize(event, store)
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payload = {
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"event": event.get_pdu_json(),
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"room_version": event.room_version.identifier,
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"event_format_version": event.format_version,
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"internal_metadata": event.internal_metadata.get_dict(),
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"outlier": event.internal_metadata.is_outlier(),
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"rejected_reason": event.rejected_reason,
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"context": serialized_context,
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"requester": requester.serialize(),
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"ratelimit": ratelimit,
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"extra_users": [u.to_string() for u in extra_users],
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}
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return payload
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async def _handle_request(self, request, event_id):
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with Measure(self.clock, "repl_send_event_parse"):
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content = parse_json_object_from_request(request)
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event_dict = content["event"]
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room_ver = KNOWN_ROOM_VERSIONS[content["room_version"]]
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internal_metadata = content["internal_metadata"]
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rejected_reason = content["rejected_reason"]
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event = make_event_from_dict(
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event_dict, room_ver, internal_metadata, rejected_reason
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)
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event.internal_metadata.outlier = content["outlier"]
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requester = Requester.deserialize(self.store, content["requester"])
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context = EventContext.deserialize(self.storage, content["context"])
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ratelimit = content["ratelimit"]
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extra_users = [UserID.from_string(u) for u in content["extra_users"]]
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request.requester = requester
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logger.info(
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"Got event to send with ID: %s into room: %s", event.event_id, event.room_id
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)
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event = await self.event_creation_handler.persist_and_notify_client_event(
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requester, event, context, ratelimit=ratelimit, extra_users=extra_users
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)
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return (
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200,
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{
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"stream_id": event.internal_metadata.stream_ordering,
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"event_id": event.event_id,
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},
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)
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def register_servlets(hs, http_server):
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ReplicationSendEventRestServlet(hs).register(http_server)
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