264 lines
		
	
	
		
			9.3 KiB
		
	
	
	
		
			Python
		
	
	
			
		
		
	
	
			264 lines
		
	
	
		
			9.3 KiB
		
	
	
	
		
			Python
		
	
	
| # -*- coding: utf-8 -*-
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| # Copyright 2014-2016 OpenMarket Ltd
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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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| 
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| from ._base import SQLBaseStore
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| from synapse.api.constants import PresenceState
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| from synapse.util.caches.descriptors import cached, cachedInlineCallbacks
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| 
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| from collections import namedtuple
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| from twisted.internet import defer
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| 
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| 
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| class UserPresenceState(namedtuple("UserPresenceState",
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|                         ("user_id", "state", "last_active_ts",
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|                             "last_federation_update_ts", "last_user_sync_ts",
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|                             "status_msg", "currently_active"))):
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|     """Represents the current presence state of the user.
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| 
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|     user_id (str)
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|     last_active (int): Time in msec that the user last interacted with server.
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|     last_federation_update (int): Time in msec since either a) we sent a presence
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|         update to other servers or b) we received a presence update, depending
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|         on if is a local user or not.
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|     last_user_sync (int): Time in msec that the user last *completed* a sync
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|         (or event stream).
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|     status_msg (str): User set status message.
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|     """
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| 
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|     def copy_and_replace(self, **kwargs):
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|         return self._replace(**kwargs)
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| 
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|     @classmethod
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|     def default(cls, user_id):
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|         """Returns a default presence state.
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|         """
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|         return cls(
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|             user_id=user_id,
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|             state=PresenceState.OFFLINE,
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|             last_active_ts=0,
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|             last_federation_update_ts=0,
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|             last_user_sync_ts=0,
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|             status_msg=None,
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|             currently_active=False,
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|         )
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| 
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| 
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| class PresenceStore(SQLBaseStore):
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|     @defer.inlineCallbacks
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|     def update_presence(self, presence_states):
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|         stream_ordering_manager = self._presence_id_gen.get_next_mult(
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|             len(presence_states)
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|         )
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| 
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|         with stream_ordering_manager as stream_orderings:
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|             yield self.runInteraction(
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|                 "update_presence",
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|                 self._update_presence_txn, stream_orderings, presence_states,
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|             )
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| 
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|         defer.returnValue((
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|             stream_orderings[-1], self._presence_id_gen.get_current_token()
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|         ))
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| 
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|     def _update_presence_txn(self, txn, stream_orderings, presence_states):
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|         for stream_id, state in zip(stream_orderings, presence_states):
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|             txn.call_after(
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|                 self.presence_stream_cache.entity_has_changed,
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|                 state.user_id, stream_id,
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|             )
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| 
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|         # Actually insert new rows
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|         self._simple_insert_many_txn(
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|             txn,
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|             table="presence_stream",
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|             values=[
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|                 {
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|                     "stream_id": stream_id,
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|                     "user_id": state.user_id,
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|                     "state": state.state,
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|                     "last_active_ts": state.last_active_ts,
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|                     "last_federation_update_ts": state.last_federation_update_ts,
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|                     "last_user_sync_ts": state.last_user_sync_ts,
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|                     "status_msg": state.status_msg,
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|                     "currently_active": state.currently_active,
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|                 }
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|                 for state in presence_states
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|             ],
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|         )
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| 
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|         # Delete old rows to stop database from getting really big
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|         sql = (
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|             "DELETE FROM presence_stream WHERE"
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|             " stream_id < ?"
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|             " AND user_id IN (%s)"
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|         )
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| 
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|         batches = (
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|             presence_states[i:i + 50]
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|             for i in xrange(0, len(presence_states), 50)
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|         )
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|         for states in batches:
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|             args = [stream_id]
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|             args.extend(s.user_id for s in states)
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|             txn.execute(
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|                 sql % (",".join("?" for _ in states),),
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|                 args
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|             )
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| 
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|     def get_all_presence_updates(self, last_id, current_id):
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|         if last_id == current_id:
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|             return defer.succeed([])
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| 
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|         def get_all_presence_updates_txn(txn):
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|             sql = (
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|                 "SELECT stream_id, user_id, state, last_active_ts,"
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|                 " last_federation_update_ts, last_user_sync_ts, status_msg,"
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|                 " currently_active"
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|                 " FROM presence_stream"
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|                 " WHERE ? < stream_id AND stream_id <= ?"
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|             )
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|             txn.execute(sql, (last_id, current_id))
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|             return txn.fetchall()
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| 
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|         return self.runInteraction(
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|             "get_all_presence_updates", get_all_presence_updates_txn
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|         )
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| 
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|     @defer.inlineCallbacks
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|     def get_presence_for_users(self, user_ids):
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|         rows = yield self._simple_select_many_batch(
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|             table="presence_stream",
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|             column="user_id",
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|             iterable=user_ids,
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|             keyvalues={},
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|             retcols=(
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|                 "user_id",
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|                 "state",
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|                 "last_active_ts",
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|                 "last_federation_update_ts",
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|                 "last_user_sync_ts",
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|                 "status_msg",
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|                 "currently_active",
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|             ),
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|             desc="get_presence_for_users",
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|         )
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| 
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|         for row in rows:
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|             row["currently_active"] = bool(row["currently_active"])
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| 
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|         defer.returnValue([UserPresenceState(**row) for row in rows])
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| 
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|     def get_current_presence_token(self):
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|         return self._presence_id_gen.get_current_token()
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| 
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|     def allow_presence_visible(self, observed_localpart, observer_userid):
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|         return self._simple_insert(
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|             table="presence_allow_inbound",
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|             values={"observed_user_id": observed_localpart,
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|                     "observer_user_id": observer_userid},
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|             desc="allow_presence_visible",
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|             or_ignore=True,
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|         )
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| 
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|     def disallow_presence_visible(self, observed_localpart, observer_userid):
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|         return self._simple_delete_one(
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|             table="presence_allow_inbound",
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|             keyvalues={"observed_user_id": observed_localpart,
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|                        "observer_user_id": observer_userid},
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|             desc="disallow_presence_visible",
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|         )
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| 
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|     def add_presence_list_pending(self, observer_localpart, observed_userid):
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|         return self._simple_insert(
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|             table="presence_list",
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|             values={"user_id": observer_localpart,
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|                     "observed_user_id": observed_userid,
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|                     "accepted": False},
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|             desc="add_presence_list_pending",
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|         )
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| 
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|     def set_presence_list_accepted(self, observer_localpart, observed_userid):
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|         def update_presence_list_txn(txn):
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|             result = self._simple_update_one_txn(
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|                 txn,
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|                 table="presence_list",
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|                 keyvalues={
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|                     "user_id": observer_localpart,
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|                     "observed_user_id": observed_userid
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|                 },
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|                 updatevalues={"accepted": True},
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|             )
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| 
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|             self._invalidate_cache_and_stream(
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|                 txn, self.get_presence_list_accepted, (observer_localpart,)
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|             )
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|             self._invalidate_cache_and_stream(
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|                 txn, self.get_presence_list_observers_accepted, (observed_userid,)
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|             )
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| 
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|             return result
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| 
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|         return self.runInteraction(
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|             "set_presence_list_accepted", update_presence_list_txn,
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|         )
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| 
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|     def get_presence_list(self, observer_localpart, accepted=None):
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|         if accepted:
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|             return self.get_presence_list_accepted(observer_localpart)
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|         else:
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|             keyvalues = {"user_id": observer_localpart}
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|             if accepted is not None:
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|                 keyvalues["accepted"] = accepted
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| 
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|             return self._simple_select_list(
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|                 table="presence_list",
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|                 keyvalues=keyvalues,
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|                 retcols=["observed_user_id", "accepted"],
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|                 desc="get_presence_list",
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|             )
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| 
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|     @cached()
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|     def get_presence_list_accepted(self, observer_localpart):
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|         return self._simple_select_list(
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|             table="presence_list",
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|             keyvalues={"user_id": observer_localpart, "accepted": True},
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|             retcols=["observed_user_id", "accepted"],
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|             desc="get_presence_list_accepted",
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|         )
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| 
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|     @cachedInlineCallbacks()
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|     def get_presence_list_observers_accepted(self, observed_userid):
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|         user_localparts = yield self._simple_select_onecol(
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|             table="presence_list",
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|             keyvalues={"observed_user_id": observed_userid, "accepted": True},
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|             retcol="user_id",
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|             desc="get_presence_list_accepted",
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|         )
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| 
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|         defer.returnValue([
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|             "@%s:%s" % (u, self.hs.hostname,) for u in user_localparts
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|         ])
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| 
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|     @defer.inlineCallbacks
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|     def del_presence_list(self, observer_localpart, observed_userid):
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|         yield self._simple_delete_one(
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|             table="presence_list",
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|             keyvalues={"user_id": observer_localpart,
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|                        "observed_user_id": observed_userid},
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|             desc="del_presence_list",
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|         )
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|         self.get_presence_list_accepted.invalidate((observer_localpart,))
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|         self.get_presence_list_observers_accepted.invalidate((observed_userid,))
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