old_contents: # -*- 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.rest.client.v1.transactions import HttpTransactionCache
  
  from ._base import client_v2_patterns
  
  logger = logging.getLogger(__name__)
  
  
  class SendToDeviceRestServlet(servlet.RestServlet):
      PATTERNS = client_v2_patterns(
          "/sendToDevice/(?P<message_type>[^/]*)/(?P<txn_id>[^/]*)$",
          releases=[], v2_alpha=False
      )
  
      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()
          self.device_message_handler = hs.get_device_message_handler()
  
      @defer.inlineCallbacks
      def on_PUT(self, request, message_type, txn_id):
          try:
              res_deferred = self.txns.get_client_transaction(request, txn_id)
              res = yield res_deferred
              defer.returnValue(res)
          except KeyError:
              pass
  
          res_deferred = self._put(request, message_type, txn_id)
          self.txns.store_client_transaction(request, txn_id, res_deferred)
          res = yield res_deferred
          defer.returnValue(res)
  
      @defer.inlineCallbacks
      def _put(self, request, message_type, txn_id):
          requester = yield self.auth.get_user_by_req(request)
  
          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, {})
          defer.returnValue(response)
  
  
  def register_servlets(hs, http_server):
      SendToDeviceRestServlet(hs).register(http_server)
  
new_contents: # -*- 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.rest.client.v1.transactions import HttpTransactionCache
  from synapse.util.async import ObservableDeferred
  
  from ._base import client_v2_patterns
  
  logger = logging.getLogger(__name__)
  
  
  class SendToDeviceRestServlet(servlet.RestServlet):
      PATTERNS = client_v2_patterns(
          "/sendToDevice/(?P<message_type>[^/]*)/(?P<txn_id>[^/]*)$",
          releases=[], v2_alpha=False
      )
  
      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()
          self.device_message_handler = hs.get_device_message_handler()
  
      @defer.inlineCallbacks
      def on_PUT(self, request, message_type, txn_id):
          try:
              res_deferred = self.txns.get_client_transaction(request, txn_id)
              res = yield res_deferred.observe()
              defer.returnValue(res)
          except KeyError:
              pass
  
          res_deferred = ObservableDeferred(self._put(request, message_type, txn_id))
          self.txns.store_client_transaction(request, txn_id, res_deferred)
          res = yield res_deferred.observe()
          defer.returnValue(res)
  
      @defer.inlineCallbacks
      def _put(self, request, message_type, txn_id):
          requester = yield self.auth.get_user_by_req(request)
  
          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, {})
          defer.returnValue(response)
  
  
  def register_servlets(hs, http_server):
      SendToDeviceRestServlet(hs).register(http_server)
  
subject: Use observable deferreds because they are sane