mirror of
https://mau.dev/maunium/synapse.git
synced 2024-06-09 14:18:54 +02:00
152 lines
4.6 KiB
Python
152 lines
4.6 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 2014 matrix.org
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from twisted.internet import defer
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from synapse.api.constants import Membership
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from synapse.types import StreamToken
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class RoomEventSource(object):
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SIGNAL_NAME = "RoomEventSource"
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def __init__(self, hs):
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self.store = hs.get_datastore()
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@defer.inlineCallbacks
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def get_keys_for_user(self, user):
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events = yield self.store.get_rooms_for_user_where_membership_is(
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user.to_string(),
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(Membership.JOIN,),
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)
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defer.returnValue(set([e.room_id for e in events]))
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@defer.inlineCallbacks
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def get_new_events_for_user(self, user, from_token, limit, key=None):
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# We just ignore the key for now.
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to_key = yield self.get_current_token_part()
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events, end_key = yield self.store.get_room_events_stream(
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user_id=user.to_string(),
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from_key=from_token.events_key,
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to_key=to_key,
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room_id=None,
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limit=limit,
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)
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end_token = from_token.copy_and_replace("events_key", end_key)
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defer.returnValue((events, end_token))
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def get_current_token_part(self):
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return self.store.get_room_events_max_id()
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@defer.inlineCallbacks
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def get_pagination_rows(self, from_token, to_token, limit, key):
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to_key = to_token.events_key if to_token else None
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events, next_key = yield self.store.paginate_room_events(
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room_id=key,
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from_key=from_token.events_key,
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to_key=to_key,
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direction='b',
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limit=limit,
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with_feedback=True
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)
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next_token = from_token.copy_and_replace("events_key", next_key)
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defer.returnValue((events, next_token))
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class PresenceStreamSource(object):
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SIGNAL_NAME = "PresenceStreamSource"
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def __init__(self, hs):
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self.hs = hs
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self.clock = hs.get_clock()
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def get_new_events_for_user(self, user, from_token, limit, key=None):
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from_key = int(from_token.presence_key)
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presence = self.hs.get_handlers().presence_handler
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cachemap = presence._user_cachemap
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# TODO(paul): limit, and filter by visibility
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updates = [(k, cachemap[k]) for k in cachemap
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if from_key < cachemap[k].serial]
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if updates:
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clock = self.clock
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latest_serial = max([x[1].serial for x in updates])
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data = [x[1].make_event(user=x[0], clock=clock) for x in updates]
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end_token = from_token.copy_and_replace(
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"presence_key", latest_serial + 1
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)
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return ((data, end_token))
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else:
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end_token = from_token.copy_and_replace(
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"presence_key", presence._user_cachemap_latest_serial
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)
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return (([], end_token))
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def get_keys_for_user(self, user):
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return defer.succeed(["moose"])
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def get_current_token_part(self):
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presence = self.hs.get_handlers().presence_handler
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return presence._user_cachemap_latest_serial
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class EventSources(object):
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SOURCE_TYPES = [
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RoomEventSource,
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PresenceStreamSource,
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]
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def __init__(self, hs):
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self.sources = [t(hs) for t in EventSources.SOURCE_TYPES]
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@staticmethod
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def create_token(events_key, presence_key):
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return StreamToken(events_key=events_key, presence_key=presence_key)
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@defer.inlineCallbacks
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def get_current_token(self):
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events_key = yield self.sources[0].get_current_token_part()
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token = EventSources.create_token(events_key, "0")
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defer.returnValue(token)
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class StreamSource(object):
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def get_keys_for_user(self, user):
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raise NotImplementedError("get_keys_for_user")
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def get_new_events_for_user(self, user, from_token, limit, key=None):
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raise NotImplementedError("get_new_events_for_user")
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def get_current_token_part(self):
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raise NotImplementedError("get_current_token_part")
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class PaginationSource(object):
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def get_pagination_rows(self, from_token, to_token, limit, key):
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raise NotImplementedError("get_rows")
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