forked-synapse/synapse/streams/events.py
Erik Johnston dddf20e8e1 Fix /messages on workers when no from param specified.
If no `from` param is specified we calculate and use the "current
token" that inlcuded typing, presence, etc. These are unused during
pagination and are not available on workers, so we simply don't
calculate them.
2019-06-24 10:06:51 +01:00

84 lines
3.0 KiB
Python

# -*- coding: utf-8 -*-
# Copyright 2014-2016 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.
from twisted.internet import defer
from synapse.handlers.account_data import AccountDataEventSource
from synapse.handlers.presence import PresenceEventSource
from synapse.handlers.receipts import ReceiptEventSource
from synapse.handlers.room import RoomEventSource
from synapse.handlers.typing import TypingNotificationEventSource
from synapse.types import StreamToken
class EventSources(object):
SOURCE_TYPES = {
"room": RoomEventSource,
"presence": PresenceEventSource,
"typing": TypingNotificationEventSource,
"receipt": ReceiptEventSource,
"account_data": AccountDataEventSource,
}
def __init__(self, hs):
self.sources = {
name: cls(hs) for name, cls in EventSources.SOURCE_TYPES.items()
}
self.store = hs.get_datastore()
@defer.inlineCallbacks
def get_current_token(self):
push_rules_key, _ = self.store.get_push_rules_stream_token()
to_device_key = self.store.get_to_device_stream_token()
device_list_key = self.store.get_device_stream_token()
groups_key = self.store.get_group_stream_token()
token = StreamToken(
room_key=(yield self.sources["room"].get_current_key()),
presence_key=(yield self.sources["presence"].get_current_key()),
typing_key=(yield self.sources["typing"].get_current_key()),
receipt_key=(yield self.sources["receipt"].get_current_key()),
account_data_key=(yield self.sources["account_data"].get_current_key()),
push_rules_key=push_rules_key,
to_device_key=to_device_key,
device_list_key=device_list_key,
groups_key=groups_key,
)
defer.returnValue(token)
@defer.inlineCallbacks
def get_current_token_for_pagination(self):
"""Get the current token for a given room to be used to paginate
events.
The returned token does not have the current values for fields other
than `room`, since they are not used during pagination.
Retuns:
Deferred[StreamToken]
"""
token = StreamToken(
room_key=(yield self.sources["room"].get_current_key()),
presence_key=0,
typing_key=0,
receipt_key=0,
account_data_key=0,
push_rules_key=0,
to_device_key=0,
device_list_key=0,
groups_key=0,
)
defer.returnValue(token)