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path: root/synapse/rest/client/v2_alpha/sendtodevice.py
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# -*- coding: utf-8 -*-
# Copyright 2016 OpenMarket 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.

import logging

from twisted.internet import defer

from synapse.http import servlet
from synapse.http.servlet import parse_json_object_from_request
from synapse.logging.opentracing import set_tag, trace
from synapse.rest.client.transactions import HttpTransactionCache

from ._base import client_patterns

logger = logging.getLogger(__name__)


class SendToDeviceRestServlet(servlet.RestServlet):
    PATTERNS = client_patterns(
        "/sendToDevice/(?P<message_type>[^/]*)/(?P<txn_id>[^/]*)$"
    )

    def __init__(self, hs):
        """
        Args:
            hs (synapse.server.HomeServer): server
        """
        super(SendToDeviceRestServlet, self).__init__()
        self.hs = hs
        self.auth = hs.get_auth()
        self.txns = HttpTransactionCache(hs)
        self.device_message_handler = hs.get_device_message_handler()

    @trace(opname="sendToDevice")
    def on_PUT(self, request, message_type, txn_id):
        set_tag("message_type", message_type)
        set_tag("txn_id", txn_id)
        return self.txns.fetch_or_execute_request(
            request, self._put, request, message_type, txn_id
        )

    @defer.inlineCallbacks
    def _put(self, request, message_type, txn_id):
        requester = yield self.auth.get_user_by_req(request, allow_guest=True)

        content = parse_json_object_from_request(request)

        sender_user_id = requester.user.to_string()

        yield self.device_message_handler.send_device_message(
            sender_user_id, message_type, content["messages"]
        )

        response = (200, {})
        return response


def register_servlets(hs, http_server):
    SendToDeviceRestServlet(hs).register(http_server)