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https://mau.dev/maunium/synapse.git
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d7808a2dde
This is the first of two PRs which seek to address #8518. This first PR lays the groundwork by extending ResponseCache; a second PR (#10158) will update the SyncHandler to actually use it, and fix the bug. The idea here is that we allow the callback given to ResponseCache.wrap to decide whether its result should be cached or not. We do that by (optionally) passing a ResponseCacheContext into it, which it can modify.
367 lines
11 KiB
Python
367 lines
11 KiB
Python
# 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 typing import TYPE_CHECKING, List, Optional, Tuple
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from twisted.web.server import Request
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from synapse.http.servlet import parse_json_object_from_request
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from synapse.http.site import SynapseRequest
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from synapse.replication.http._base import ReplicationEndpoint
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from synapse.types import JsonDict, Requester, UserID
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from synapse.util.distributor import user_left_room
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if TYPE_CHECKING:
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from synapse.server import HomeServer
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logger = logging.getLogger(__name__)
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class ReplicationRemoteJoinRestServlet(ReplicationEndpoint):
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"""Does a remote join for the given user to the given room
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Request format:
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POST /_synapse/replication/remote_join/:room_id/:user_id
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{
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"requester": ...,
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"remote_room_hosts": [...],
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"content": { ... }
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}
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"""
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NAME = "remote_join"
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PATH_ARGS = ("room_id", "user_id")
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def __init__(self, hs):
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super().__init__(hs)
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self.federation_handler = hs.get_federation_handler()
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self.store = hs.get_datastore()
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self.clock = hs.get_clock()
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@staticmethod
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async def _serialize_payload( # type: ignore
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requester: Requester,
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room_id: str,
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user_id: str,
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remote_room_hosts: List[str],
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content: JsonDict,
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) -> JsonDict:
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"""
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Args:
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requester: The user making the request according to the access token
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room_id: The ID of the room.
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user_id: The ID of the user.
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remote_room_hosts: Servers to try and join via
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content: The event content to use for the join event
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Returns:
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A dict representing the payload of the request.
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"""
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return {
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"requester": requester.serialize(),
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"remote_room_hosts": remote_room_hosts,
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"content": content,
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}
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async def _handle_request( # type: ignore
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self, request: SynapseRequest, room_id: str, user_id: str
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) -> Tuple[int, JsonDict]:
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content = parse_json_object_from_request(request)
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remote_room_hosts = content["remote_room_hosts"]
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event_content = content["content"]
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requester = Requester.deserialize(self.store, content["requester"])
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request.requester = requester
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logger.info("remote_join: %s into room: %s", user_id, room_id)
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event_id, stream_id = await self.federation_handler.do_invite_join(
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remote_room_hosts, room_id, user_id, event_content
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)
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return 200, {"event_id": event_id, "stream_id": stream_id}
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class ReplicationRemoteKnockRestServlet(ReplicationEndpoint):
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"""Perform a remote knock for the given user on the given room
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Request format:
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POST /_synapse/replication/remote_knock/:room_id/:user_id
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{
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"requester": ...,
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"remote_room_hosts": [...],
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"content": { ... }
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}
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"""
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NAME = "remote_knock"
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PATH_ARGS = ("room_id", "user_id")
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def __init__(self, hs: "HomeServer"):
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super().__init__(hs)
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self.federation_handler = hs.get_federation_handler()
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self.store = hs.get_datastore()
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self.clock = hs.get_clock()
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@staticmethod
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async def _serialize_payload( # type: ignore
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requester: Requester,
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room_id: str,
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user_id: str,
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remote_room_hosts: List[str],
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content: JsonDict,
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):
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"""
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Args:
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requester: The user making the request, according to the access token.
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room_id: The ID of the room to knock on.
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user_id: The ID of the knocking user.
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remote_room_hosts: Servers to try and send the knock via.
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content: The event content to use for the knock event.
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"""
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return {
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"requester": requester.serialize(),
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"remote_room_hosts": remote_room_hosts,
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"content": content,
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}
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async def _handle_request( # type: ignore
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self,
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request: SynapseRequest,
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room_id: str,
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user_id: str,
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):
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content = parse_json_object_from_request(request)
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remote_room_hosts = content["remote_room_hosts"]
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event_content = content["content"]
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requester = Requester.deserialize(self.store, content["requester"])
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request.requester = requester
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logger.debug("remote_knock: %s on room: %s", user_id, room_id)
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event_id, stream_id = await self.federation_handler.do_knock(
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remote_room_hosts, room_id, user_id, event_content
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)
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return 200, {"event_id": event_id, "stream_id": stream_id}
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class ReplicationRemoteRejectInviteRestServlet(ReplicationEndpoint):
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"""Rejects an out-of-band invite we have received from a remote server
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Request format:
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POST /_synapse/replication/remote_reject_invite/:event_id
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{
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"txn_id": ...,
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"requester": ...,
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"content": { ... }
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}
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"""
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NAME = "remote_reject_invite"
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PATH_ARGS = ("invite_event_id",)
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def __init__(self, hs: "HomeServer"):
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super().__init__(hs)
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self.store = hs.get_datastore()
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self.clock = hs.get_clock()
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self.member_handler = hs.get_room_member_handler()
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@staticmethod
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async def _serialize_payload( # type: ignore
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invite_event_id: str,
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txn_id: Optional[str],
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requester: Requester,
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content: JsonDict,
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) -> JsonDict:
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"""
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Args:
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invite_event_id: The ID of the invite to be rejected.
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txn_id: Optional transaction ID supplied by the client
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requester: User making the rejection request, according to the access token
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content: Additional content to include in the rejection event.
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Normally an empty dict.
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Returns:
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A dict representing the payload of the request.
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"""
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return {
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"txn_id": txn_id,
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"requester": requester.serialize(),
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"content": content,
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}
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async def _handle_request( # type: ignore
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self, request: SynapseRequest, invite_event_id: str
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) -> Tuple[int, JsonDict]:
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content = parse_json_object_from_request(request)
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txn_id = content["txn_id"]
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event_content = content["content"]
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requester = Requester.deserialize(self.store, content["requester"])
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request.requester = requester
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# hopefully we're now on the master, so this won't recurse!
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event_id, stream_id = await self.member_handler.remote_reject_invite(
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invite_event_id,
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txn_id,
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requester,
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event_content,
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)
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return 200, {"event_id": event_id, "stream_id": stream_id}
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class ReplicationRemoteRescindKnockRestServlet(ReplicationEndpoint):
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"""Rescinds a local knock made on a remote room
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Request format:
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POST /_synapse/replication/remote_rescind_knock/:event_id
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{
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"txn_id": ...,
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"requester": ...,
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"content": { ... }
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}
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"""
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NAME = "remote_rescind_knock"
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PATH_ARGS = ("knock_event_id",)
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def __init__(self, hs: "HomeServer"):
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super().__init__(hs)
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self.store = hs.get_datastore()
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self.clock = hs.get_clock()
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self.member_handler = hs.get_room_member_handler()
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@staticmethod
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async def _serialize_payload( # type: ignore
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knock_event_id: str,
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txn_id: Optional[str],
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requester: Requester,
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content: JsonDict,
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):
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"""
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Args:
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knock_event_id: The ID of the knock to be rescinded.
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txn_id: An optional transaction ID supplied by the client.
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requester: The user making the rescind request, according to the access token.
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content: The content to include in the rescind event.
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"""
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return {
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"txn_id": txn_id,
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"requester": requester.serialize(),
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"content": content,
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}
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async def _handle_request( # type: ignore
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self,
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request: SynapseRequest,
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knock_event_id: str,
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):
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content = parse_json_object_from_request(request)
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txn_id = content["txn_id"]
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event_content = content["content"]
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requester = Requester.deserialize(self.store, content["requester"])
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request.requester = requester
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# hopefully we're now on the master, so this won't recurse!
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event_id, stream_id = await self.member_handler.remote_rescind_knock(
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knock_event_id,
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txn_id,
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requester,
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event_content,
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)
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return 200, {"event_id": event_id, "stream_id": stream_id}
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class ReplicationUserJoinedLeftRoomRestServlet(ReplicationEndpoint):
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"""Notifies that a user has joined or left the room
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Request format:
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POST /_synapse/replication/membership_change/:room_id/:user_id/:change
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{}
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"""
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NAME = "membership_change"
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PATH_ARGS = ("room_id", "user_id", "change")
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CACHE = False # No point caching as should return instantly.
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def __init__(self, hs):
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super().__init__(hs)
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self.registeration_handler = hs.get_registration_handler()
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self.store = hs.get_datastore()
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self.clock = hs.get_clock()
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self.distributor = hs.get_distributor()
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@staticmethod
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async def _serialize_payload( # type: ignore
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room_id: str, user_id: str, change: str
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) -> JsonDict:
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"""
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Args:
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room_id: The ID of the room.
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user_id: The ID of the user.
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change: "left"
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Returns:
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A dict representing the payload of the request.
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"""
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assert change == "left"
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return {}
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async def _handle_request( # type: ignore
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self, request: Request, room_id: str, user_id: str, change: str
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) -> Tuple[int, JsonDict]:
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logger.info("user membership change: %s in %s", user_id, room_id)
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user = UserID.from_string(user_id)
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if change == "left":
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user_left_room(self.distributor, user, room_id)
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else:
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raise Exception("Unrecognized change: %r", change)
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return 200, {}
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def register_servlets(hs, http_server):
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ReplicationRemoteJoinRestServlet(hs).register(http_server)
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ReplicationRemoteRejectInviteRestServlet(hs).register(http_server)
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ReplicationUserJoinedLeftRoomRestServlet(hs).register(http_server)
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