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# -*- 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.storage._base import SQLBaseStore, make_in_list_sql_clause
from synapse.storage.presence import UserPresenceState
from synapse.util import batch_iter
from synapse.util.caches.descriptors import cached, cachedList
class PresenceStore(SQLBaseStore):
@defer.inlineCallbacks
def update_presence(self, presence_states):
stream_ordering_manager = self._presence_id_gen.get_next_mult(
len(presence_states)
)
with stream_ordering_manager as stream_orderings:
yield self.db.runInteraction(
"update_presence",
self._update_presence_txn,
stream_orderings,
presence_states,
)
return stream_orderings[-1], self._presence_id_gen.get_current_token()
def _update_presence_txn(self, txn, stream_orderings, presence_states):
for stream_id, state in zip(stream_orderings, presence_states):
txn.call_after(
self.presence_stream_cache.entity_has_changed, state.user_id, stream_id
)
txn.call_after(self._get_presence_for_user.invalidate, (state.user_id,))
# Actually insert new rows
self.db.simple_insert_many_txn(
txn,
table="presence_stream",
values=[
{
"stream_id": stream_id,
"user_id": state.user_id,
"state": state.state,
"last_active_ts": state.last_active_ts,
"last_federation_update_ts": state.last_federation_update_ts,
"last_user_sync_ts": state.last_user_sync_ts,
"status_msg": state.status_msg,
"currently_active": state.currently_active,
}
for state in presence_states
],
)
# Delete old rows to stop database from getting really big
sql = "DELETE FROM presence_stream WHERE stream_id < ? AND "
for states in batch_iter(presence_states, 50):
clause, args = make_in_list_sql_clause(
self.database_engine, "user_id", [s.user_id for s in states]
)
txn.execute(sql + clause, [stream_id] + list(args))
def get_all_presence_updates(self, last_id, current_id):
if last_id == current_id:
return defer.succeed([])
def get_all_presence_updates_txn(txn):
sql = (
"SELECT stream_id, user_id, state, last_active_ts,"
" last_federation_update_ts, last_user_sync_ts, status_msg,"
" currently_active"
" FROM presence_stream"
" WHERE ? < stream_id AND stream_id <= ?"
)
txn.execute(sql, (last_id, current_id))
return txn.fetchall()
return self.db.runInteraction(
"get_all_presence_updates", get_all_presence_updates_txn
)
@cached()
def _get_presence_for_user(self, user_id):
raise NotImplementedError()
@cachedList(
cached_method_name="_get_presence_for_user",
list_name="user_ids",
num_args=1,
inlineCallbacks=True,
)
def get_presence_for_users(self, user_ids):
rows = yield self.db.simple_select_many_batch(
table="presence_stream",
column="user_id",
iterable=user_ids,
keyvalues={},
retcols=(
"user_id",
"state",
"last_active_ts",
"last_federation_update_ts",
"last_user_sync_ts",
"status_msg",
"currently_active",
),
desc="get_presence_for_users",
)
for row in rows:
row["currently_active"] = bool(row["currently_active"])
return {row["user_id"]: UserPresenceState(**row) for row in rows}
def get_current_presence_token(self):
return self._presence_id_gen.get_current_token()
def allow_presence_visible(self, observed_localpart, observer_userid):
return self.db.simple_insert(
table="presence_allow_inbound",
values={
"observed_user_id": observed_localpart,
"observer_user_id": observer_userid,
},
desc="allow_presence_visible",
or_ignore=True,
)
def disallow_presence_visible(self, observed_localpart, observer_userid):
return self.db.simple_delete_one(
table="presence_allow_inbound",
keyvalues={
"observed_user_id": observed_localpart,
"observer_user_id": observer_userid,
},
desc="disallow_presence_visible",
)
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