140 lines
		
	
	
		
			4.6 KiB
		
	
	
	
		
			Python
		
	
	
			
		
		
	
	
			140 lines
		
	
	
		
			4.6 KiB
		
	
	
	
		
			Python
		
	
	
# Copyright 2018-2021 The Matrix.org Foundation C.I.C.
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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 synapse.handlers.room_member import NoKnownServersError, RoomMemberHandler
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from synapse.replication.http.membership import (
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    ReplicationRemoteJoinRestServlet as ReplRemoteJoin,
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    ReplicationRemoteKnockRestServlet as ReplRemoteKnock,
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    ReplicationRemoteRejectInviteRestServlet as ReplRejectInvite,
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    ReplicationRemoteRescindKnockRestServlet as ReplRescindKnock,
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    ReplicationUserJoinedLeftRoomRestServlet as ReplJoinedLeft,
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)
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from synapse.types import JsonDict, Requester, UserID
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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 RoomMemberWorkerHandler(RoomMemberHandler):
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    def __init__(self, hs: "HomeServer"):
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        super().__init__(hs)
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        self._remote_join_client = ReplRemoteJoin.make_client(hs)
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        self._remote_knock_client = ReplRemoteKnock.make_client(hs)
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        self._remote_reject_client = ReplRejectInvite.make_client(hs)
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        self._remote_rescind_client = ReplRescindKnock.make_client(hs)
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        self._notify_change_client = ReplJoinedLeft.make_client(hs)
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    async def _remote_join(
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        self,
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        requester: Requester,
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        remote_room_hosts: List[str],
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        room_id: str,
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        user: UserID,
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        content: dict,
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    ) -> Tuple[str, int]:
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        """Implements RoomMemberHandler._remote_join"""
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        if len(remote_room_hosts) == 0:
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            raise NoKnownServersError()
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        ret = await self._remote_join_client(
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            requester=requester,
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            remote_room_hosts=remote_room_hosts,
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            room_id=room_id,
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            user_id=user.to_string(),
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            content=content,
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        )
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        return ret["event_id"], ret["stream_id"]
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    async def remote_reject_invite(
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        self,
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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: dict,
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    ) -> Tuple[str, int]:
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        """
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        Rejects an out-of-band invite received from a remote user
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        Implements RoomMemberHandler.remote_reject_invite
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        """
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        ret = await self._remote_reject_client(
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            invite_event_id=invite_event_id,
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            txn_id=txn_id,
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            requester=requester,
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            content=content,
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        )
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        return ret["event_id"], ret["stream_id"]
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    async def remote_rescind_knock(
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        self,
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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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    ) -> Tuple[str, int]:
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        """
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        Rescinds a local knock made on a remote room
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        Args:
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            knock_event_id: the knock event
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            txn_id: optional transaction ID supplied by the client
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            requester: user making the request, according to the access token
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            content: additional content to include in the leave event.
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               Normally an empty dict.
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        Returns:
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            A tuple containing (event_id, stream_id of the leave event)
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        """
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        ret = await self._remote_rescind_client(
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            knock_event_id=knock_event_id,
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            txn_id=txn_id,
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            requester=requester,
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            content=content,
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        )
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        return ret["event_id"], ret["stream_id"]
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    async def remote_knock(
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        self,
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        requester: Requester,
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        remote_room_hosts: List[str],
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        room_id: str,
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        user: UserID,
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        content: dict,
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    ) -> Tuple[str, int]:
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        """Sends a knock to a room.
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        Implements RoomMemberHandler.remote_knock
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        """
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        ret = await self._remote_knock_client(
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            requester=requester,
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            remote_room_hosts=remote_room_hosts,
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            room_id=room_id,
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            user_id=user.to_string(),
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            content=content,
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        )
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        return ret["event_id"], ret["stream_id"]
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    async def _user_left_room(self, target: UserID, room_id: str) -> None:
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        """Implements RoomMemberHandler._user_left_room"""
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        await self._notify_change_client(
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            user_id=target.to_string(), room_id=room_id, change="left"
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        )
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