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# -*- coding: utf-8 -*-
# Copyright 2014 matrix.org
#
# 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 twisted.internet import defer
from synapse.api.events import SynapseEvent
from ._base import BaseHandler
import logging
logger = logging.getLogger(__name__)
class EventStreamHandler(BaseHandler):
def __init__(self, hs):
super(EventStreamHandler, self).__init__(hs)
# Count of active streams per user
self._streams_per_user = {}
# Grace timers per user to delay the "stopped" signal
self._stop_timer_per_user = {}
self.distributor = hs.get_distributor()
self.distributor.declare("started_user_eventstream")
self.distributor.declare("stopped_user_eventstream")
self.clock = hs.get_clock()
self.notifier = hs.get_notifier()
@defer.inlineCallbacks
def get_stream(self, auth_user_id, pagin_config, timeout=0):
auth_user = self.hs.parse_userid(auth_user_id)
if pagin_config.from_token is None:
pagin_config.from_token = None
rm_handler = self.hs.get_handlers().room_member_handler
room_ids = yield rm_handler.get_rooms_for_user(auth_user)
events, tokens = yield self.notifier.get_events_for(
auth_user, room_ids, pagin_config, timeout
)
chunks = [
e.get_dict() if isinstance(e, SynapseEvent) else e
for e in events
]
chunk = {
"chunk": chunks,
"start": tokens[0].to_string(),
"end": tokens[1].to_string(),
}
defer.returnValue(chunk)
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