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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 ._base import SQLBaseStore
from synapse.api.constants import PresenceState
from synapse.util.caches.descriptors import cached, cachedInlineCallbacks
from collections import namedtuple
from twisted.internet import defer
class UserPresenceState(namedtuple("UserPresenceState",
("user_id", "state", "last_active_ts",
"last_federation_update_ts", "last_user_sync_ts",
"status_msg", "currently_active"))):
"""Represents the current presence state of the user.
user_id (str)
last_active (int): Time in msec that the user last interacted with server.
last_federation_update (int): Time in msec since either a) we sent a presence
update to other servers or b) we received a presence update, depending
on if is a local user or not.
last_user_sync (int): Time in msec that the user last *completed* a sync
(or event stream).
status_msg (str): User set status message.
"""
def copy_and_replace(self, **kwargs):
return self._replace(**kwargs)
@classmethod
def default(cls, user_id):
"""Returns a default presence state.
"""
return cls(
user_id=user_id,
state=PresenceState.OFFLINE,
last_active_ts=0,
last_federation_update_ts=0,
last_user_sync_ts=0,
status_msg=None,
currently_active=False,
)
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.runInteraction(
"update_presence",
self._update_presence_txn, stream_orderings, presence_states,
)
defer.returnValue((
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,
)
# Actually insert new rows
self._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 user_id IN (%s)"
)
batches = (
presence_states[i:i + 50]
for i in xrange(0, len(presence_states), 50)
)
for states in batches:
args = [stream_id]
args.extend(s.user_id for s in states)
txn.execute(
sql % (",".join("?" for _ in states),),
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.runInteraction(
"get_all_presence_updates", get_all_presence_updates_txn
)
@defer.inlineCallbacks
def get_presence_for_users(self, user_ids):
rows = yield self._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"])
defer.returnValue([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._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._simple_delete_one(
table="presence_allow_inbound",
keyvalues={"observed_user_id": observed_localpart,
"observer_user_id": observer_userid},
desc="disallow_presence_visible",
)
def add_presence_list_pending(self, observer_localpart, observed_userid):
return self._simple_insert(
table="presence_list",
values={"user_id": observer_localpart,
"observed_user_id": observed_userid,
"accepted": False},
desc="add_presence_list_pending",
)
@defer.inlineCallbacks
def set_presence_list_accepted(self, observer_localpart, observed_userid):
result = yield self._simple_update_one(
table="presence_list",
keyvalues={"user_id": observer_localpart,
"observed_user_id": observed_userid},
updatevalues={"accepted": True},
desc="set_presence_list_accepted",
)
self.get_presence_list_accepted.invalidate((observer_localpart,))
self.get_presence_list_observers_accepted.invalidate((observed_userid,))
defer.returnValue(result)
def get_presence_list(self, observer_localpart, accepted=None):
if accepted:
return self.get_presence_list_accepted(observer_localpart)
else:
keyvalues = {"user_id": observer_localpart}
if accepted is not None:
keyvalues["accepted"] = accepted
return self._simple_select_list(
table="presence_list",
keyvalues=keyvalues,
retcols=["observed_user_id", "accepted"],
desc="get_presence_list",
)
@cached()
def get_presence_list_accepted(self, observer_localpart):
return self._simple_select_list(
table="presence_list",
keyvalues={"user_id": observer_localpart, "accepted": True},
retcols=["observed_user_id", "accepted"],
desc="get_presence_list_accepted",
)
@cachedInlineCallbacks()
def get_presence_list_observers_accepted(self, observed_userid):
user_localparts = yield self._simple_select_onecol(
table="presence_list",
keyvalues={"observed_user_id": observed_userid, "accepted": True},
retcol="user_id",
desc="get_presence_list_accepted",
)
defer.returnValue([
"@%s:%s" % (u, self.hs.hostname,) for u in user_localparts
])
@defer.inlineCallbacks
def del_presence_list(self, observer_localpart, observed_userid):
yield self._simple_delete_one(
table="presence_list",
keyvalues={"user_id": observer_localpart,
"observed_user_id": observed_userid},
desc="del_presence_list",
)
self.get_presence_list_accepted.invalidate((observer_localpart,))
self.get_presence_list_observers_accepted.invalidate((observed_userid,))
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