anonymousland-synapse/synapse/replication/http/membership.py

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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.
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import logging
from synapse.http.servlet import parse_json_object_from_request
from synapse.replication.http._base import ReplicationEndpoint
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from synapse.types import Requester, UserID
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from synapse.util.distributor import user_joined_room, user_left_room
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logger = logging.getLogger(__name__)
class ReplicationRemoteJoinRestServlet(ReplicationEndpoint):
"""Does a remote join for the given user to the given room
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Request format:
POST /_synapse/replication/remote_join/:room_id/:user_id
{
"requester": ...,
"remote_room_hosts": [...],
"content": { ... }
}
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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):
super(ReplicationRemoteJoinRestServlet, self).__init__(hs)
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self.federation_handler = hs.get_handlers().federation_handler
self.store = hs.get_datastore()
self.clock = hs.get_clock()
@staticmethod
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def _serialize_payload(requester, room_id, user_id, remote_room_hosts, content):
"""
Args:
requester(Requester)
room_id (str)
user_id (str)
remote_room_hosts (list[str]): Servers to try and join via
content(dict): The event content to use for the join event
"""
return {
"requester": requester.serialize(),
"remote_room_hosts": remote_room_hosts,
"content": content,
}
async def _handle_request(self, request, room_id, user_id):
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content = parse_json_object_from_request(request)
remote_room_hosts = content["remote_room_hosts"]
event_content = content["content"]
requester = Requester.deserialize(self.store, content["requester"])
if requester.user:
request.authenticated_entity = requester.user.to_string()
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logger.info("remote_join: %s into room: %s", user_id, room_id)
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await self.federation_handler.do_invite_join(
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remote_room_hosts, room_id, user_id, event_content
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)
return 200, {}
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class ReplicationRemoteRejectInviteRestServlet(ReplicationEndpoint):
"""Rejects the invite for the user and room.
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Request format:
POST /_synapse/replication/remote_reject_invite/:room_id/:user_id
{
"requester": ...,
"remote_room_hosts": [...],
"content": { ... }
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}
"""
NAME = "remote_reject_invite"
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PATH_ARGS = ("room_id", "user_id")
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def __init__(self, hs):
super(ReplicationRemoteRejectInviteRestServlet, self).__init__(hs)
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self.federation_handler = hs.get_handlers().federation_handler
self.store = hs.get_datastore()
self.clock = hs.get_clock()
@staticmethod
def _serialize_payload(requester, room_id, user_id, remote_room_hosts, content):
"""
Args:
requester(Requester)
room_id (str)
user_id (str)
remote_room_hosts (list[str]): Servers to try and reject via
"""
return {
"requester": requester.serialize(),
"remote_room_hosts": remote_room_hosts,
"content": content,
}
async def _handle_request(self, request, room_id, user_id):
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content = parse_json_object_from_request(request)
remote_room_hosts = content["remote_room_hosts"]
event_content = content["content"]
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requester = Requester.deserialize(self.store, content["requester"])
if requester.user:
request.authenticated_entity = requester.user.to_string()
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logger.info("remote_reject_invite: %s out of room: %s", user_id, room_id)
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try:
event = await self.federation_handler.do_remotely_reject_invite(
remote_room_hosts, room_id, user_id, event_content,
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)
ret = event.get_pdu_json()
except Exception as e:
# if we were unable to reject the exception, just mark
# it as rejected on our end and plough ahead.
#
# The 'except' clause is very broad, but we need to
# capture everything from DNS failures upwards
#
logger.warning("Failed to reject invite: %s", e)
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await self.store.locally_reject_invite(user_id, room_id)
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ret = {}
return 200, ret
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class ReplicationUserJoinedLeftRoomRestServlet(ReplicationEndpoint):
"""Notifies that a user has joined or left the room
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Request format:
POST /_synapse/replication/membership_change/:room_id/:user_id/:change
{}
"""
NAME = "membership_change"
PATH_ARGS = ("room_id", "user_id", "change")
CACHE = False # No point caching as should return instantly.
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def __init__(self, hs):
super(ReplicationUserJoinedLeftRoomRestServlet, self).__init__(hs)
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self.registeration_handler = hs.get_registration_handler()
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self.store = hs.get_datastore()
self.clock = hs.get_clock()
self.distributor = hs.get_distributor()
@staticmethod
def _serialize_payload(room_id, user_id, change):
"""
Args:
room_id (str)
user_id (str)
change (str): Either "joined" or "left"
"""
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assert change in ("joined", "left")
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return {}
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def _handle_request(self, request, room_id, user_id, change):
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logger.info("user membership change: %s in %s", user_id, room_id)
user = UserID.from_string(user_id)
if change == "joined":
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user_joined_room(self.distributor, user, room_id)
elif change == "left":
user_left_room(self.distributor, user, room_id)
else:
raise Exception("Unrecognized change: %r", change)
return 200, {}
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def register_servlets(hs, http_server):
ReplicationRemoteJoinRestServlet(hs).register(http_server)
ReplicationRemoteRejectInviteRestServlet(hs).register(http_server)
ReplicationUserJoinedLeftRoomRestServlet(hs).register(http_server)