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- # -*- 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 logging
- from twisted.internet import defer
- from synapse.events import event_type_from_format_version
- from synapse.events.snapshot import EventContext
- from synapse.http.servlet import parse_json_object_from_request
- from synapse.replication.http._base import ReplicationEndpoint
- from synapse.util.metrics import Measure
- logger = logging.getLogger(__name__)
- class ReplicationFederationSendEventsRestServlet(ReplicationEndpoint):
- """Handles events newly received from federation, including persisting and
- notifying.
- The API looks like:
- POST /_synapse/replication/fed_send_events/:txn_id
- {
- "events": [{
- "event": { .. serialized event .. },
- "internal_metadata": { .. serialized internal_metadata .. },
- "rejected_reason": .., // The event.rejected_reason field
- "context": { .. serialized event context .. },
- }],
- "backfilled": false
- """
- NAME = "fed_send_events"
- PATH_ARGS = ()
- def __init__(self, hs):
- super(ReplicationFederationSendEventsRestServlet, self).__init__(hs)
- self.store = hs.get_datastore()
- self.clock = hs.get_clock()
- self.federation_handler = hs.get_handlers().federation_handler
- @staticmethod
- @defer.inlineCallbacks
- def _serialize_payload(store, event_and_contexts, backfilled):
- """
- Args:
- store
- event_and_contexts (list[tuple[FrozenEvent, EventContext]])
- backfilled (bool): Whether or not the events are the result of
- backfilling
- """
- event_payloads = []
- for event, context in event_and_contexts:
- serialized_context = yield context.serialize(event, store)
- event_payloads.append(
- {
- "event": event.get_pdu_json(),
- "event_format_version": event.format_version,
- "internal_metadata": event.internal_metadata.get_dict(),
- "rejected_reason": event.rejected_reason,
- "context": serialized_context,
- }
- )
- payload = {"events": event_payloads, "backfilled": backfilled}
- return payload
- @defer.inlineCallbacks
- def _handle_request(self, request):
- with Measure(self.clock, "repl_fed_send_events_parse"):
- content = parse_json_object_from_request(request)
- backfilled = content["backfilled"]
- event_payloads = content["events"]
- event_and_contexts = []
- for event_payload in event_payloads:
- event_dict = event_payload["event"]
- format_ver = event_payload["event_format_version"]
- internal_metadata = event_payload["internal_metadata"]
- rejected_reason = event_payload["rejected_reason"]
- EventType = event_type_from_format_version(format_ver)
- event = EventType(event_dict, internal_metadata, rejected_reason)
- context = yield EventContext.deserialize(
- self.store, event_payload["context"]
- )
- event_and_contexts.append((event, context))
- logger.info("Got %d events from federation", len(event_and_contexts))
- yield self.federation_handler.persist_events_and_notify(
- event_and_contexts, backfilled
- )
- return (200, {})
- class ReplicationFederationSendEduRestServlet(ReplicationEndpoint):
- """Handles EDUs newly received from federation, including persisting and
- notifying.
- Request format:
- POST /_synapse/replication/fed_send_edu/:edu_type/:txn_id
- {
- "origin": ...,
- "content: { ... }
- }
- """
- NAME = "fed_send_edu"
- PATH_ARGS = ("edu_type",)
- def __init__(self, hs):
- super(ReplicationFederationSendEduRestServlet, self).__init__(hs)
- self.store = hs.get_datastore()
- self.clock = hs.get_clock()
- self.registry = hs.get_federation_registry()
- @staticmethod
- def _serialize_payload(edu_type, origin, content):
- return {"origin": origin, "content": content}
- @defer.inlineCallbacks
- def _handle_request(self, request, edu_type):
- with Measure(self.clock, "repl_fed_send_edu_parse"):
- content = parse_json_object_from_request(request)
- origin = content["origin"]
- edu_content = content["content"]
- logger.info("Got %r edu from %s", edu_type, origin)
- result = yield self.registry.on_edu(edu_type, origin, edu_content)
- return (200, result)
- class ReplicationGetQueryRestServlet(ReplicationEndpoint):
- """Handle responding to queries from federation.
- Request format:
- POST /_synapse/replication/fed_query/:query_type
- {
- "args": { ... }
- }
- """
- NAME = "fed_query"
- PATH_ARGS = ("query_type",)
- # This is a query, so let's not bother caching
- CACHE = False
- def __init__(self, hs):
- super(ReplicationGetQueryRestServlet, self).__init__(hs)
- self.store = hs.get_datastore()
- self.clock = hs.get_clock()
- self.registry = hs.get_federation_registry()
- @staticmethod
- def _serialize_payload(query_type, args):
- """
- Args:
- query_type (str)
- args (dict): The arguments received for the given query type
- """
- return {"args": args}
- @defer.inlineCallbacks
- def _handle_request(self, request, query_type):
- with Measure(self.clock, "repl_fed_query_parse"):
- content = parse_json_object_from_request(request)
- args = content["args"]
- logger.info("Got %r query", query_type)
- result = yield self.registry.on_query(query_type, args)
- return (200, result)
- class ReplicationCleanRoomRestServlet(ReplicationEndpoint):
- """Called to clean up any data in DB for a given room, ready for the
- server to join the room.
- Request format:
- POST /_synapse/replication/fed_query/:fed_cleanup_room/:txn_id
- {}
- """
- NAME = "fed_cleanup_room"
- PATH_ARGS = ("room_id",)
- def __init__(self, hs):
- super(ReplicationCleanRoomRestServlet, self).__init__(hs)
- self.store = hs.get_datastore()
- @staticmethod
- def _serialize_payload(room_id, args):
- """
- Args:
- room_id (str)
- """
- return {}
- @defer.inlineCallbacks
- def _handle_request(self, request, room_id):
- yield self.store.clean_room_for_join(room_id)
- return (200, {})
- def register_servlets(hs, http_server):
- ReplicationFederationSendEventsRestServlet(hs).register(http_server)
- ReplicationFederationSendEduRestServlet(hs).register(http_server)
- ReplicationGetQueryRestServlet(hs).register(http_server)
- ReplicationCleanRoomRestServlet(hs).register(http_server)
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