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# -*- coding: utf-8 -*-
# Copyright 2019 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.
from typing import TYPE_CHECKING, Optional, Tuple
from synapse.api.constants import EventTypes
from synapse.api.errors import SynapseError
from synapse.http.server import HttpServer
from synapse.http.servlet import (
RestServlet,
assert_params_in_dict,
parse_json_object_from_request,
)
from synapse.http.site import SynapseRequest
from synapse.rest.admin import assert_requester_is_admin
from synapse.rest.admin._base import admin_patterns
from synapse.rest.client.transactions import HttpTransactionCache
from synapse.types import JsonDict, UserID
if TYPE_CHECKING:
from synapse.server import HomeServer
class SendServerNoticeServlet(RestServlet):
"""Servlet which will send a server notice to a given user
POST /_synapse/admin/v1/send_server_notice
{
"user_id": "@target_user:server_name",
"content": {
"msgtype": "m.text",
"body": "This is my message"
}
}
returns:
{
"event_id": "$1895723857jgskldgujpious"
}
"""
def __init__(self, hs: "HomeServer"):
self.hs = hs
self.auth = hs.get_auth()
self.txns = HttpTransactionCache(hs)
self.snm = hs.get_server_notices_manager()
def register(self, json_resource: HttpServer):
PATTERN = "/send_server_notice"
json_resource.register_paths(
"POST", admin_patterns(PATTERN + "$"), self.on_POST, self.__class__.__name__
)
json_resource.register_paths(
"PUT",
admin_patterns(PATTERN + "/(?P<txn_id>[^/]*)$"),
self.on_PUT,
self.__class__.__name__,
)
async def on_POST(
self, request: SynapseRequest, txn_id: Optional[str] = None
) -> Tuple[int, JsonDict]:
await assert_requester_is_admin(self.auth, request)
body = parse_json_object_from_request(request)
assert_params_in_dict(body, ("user_id", "content"))
event_type = body.get("type", EventTypes.Message)
state_key = body.get("state_key")
if not self.snm.is_enabled():
raise SynapseError(400, "Server notices are not enabled on this server")
user_id = body["user_id"]
UserID.from_string(user_id)
if not self.hs.is_mine_id(user_id):
raise SynapseError(400, "Server notices can only be sent to local users")
event = await self.snm.send_notice(
user_id=body["user_id"],
type=event_type,
state_key=state_key,
event_content=body["content"],
)
return 200, {"event_id": event.event_id}
def on_PUT(self, request: SynapseRequest, txn_id: str) -> Tuple[int, JsonDict]:
return self.txns.fetch_or_execute_request(
request, self.on_POST, request, txn_id
)
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