359 lines
11 KiB
Python
359 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.server import HttpServer
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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: "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_datastores().main
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self.clock = hs.get_clock()
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@staticmethod
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async def _serialize_payload( # type: ignore[override]
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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[override]
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self, request: SynapseRequest, content: JsonDict, room_id: str, user_id: str
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) -> Tuple[int, JsonDict]:
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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_datastores().main
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self.clock = hs.get_clock()
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@staticmethod
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async def _serialize_payload( # type: ignore[override]
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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 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[override]
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self, request: SynapseRequest, content: JsonDict, room_id: str, user_id: str
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) -> Tuple[int, JsonDict]:
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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_datastores().main
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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[override]
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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[override]
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self, request: SynapseRequest, content: JsonDict, invite_event_id: str
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) -> Tuple[int, JsonDict]:
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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_datastores().main
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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[override]
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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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) -> JsonDict:
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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[override]
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self, request: SynapseRequest, content: JsonDict, knock_event_id: str
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) -> Tuple[int, JsonDict]:
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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: "HomeServer"):
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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_datastores().main
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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[override]
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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[override]
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self,
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request: Request,
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content: JsonDict,
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room_id: str,
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user_id: str,
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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: "HomeServer", http_server: HttpServer) -> None:
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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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ReplicationRemoteKnockRestServlet(hs).register(http_server)
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ReplicationRemoteRescindKnockRestServlet(hs).register(http_server)
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