# -*- coding: utf-8 -*-
# Copyright 2015 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 twisted.internet import defer
from synapse.util.caches.descriptors import cachedInlineCallbacks
from synapse.types import RoomStreamToken
from .stream import lower_bound
import logging
import ujson as json
logger = logging.getLogger(__name__)
class EventPushActionsStore(SQLBaseStore):
def __init__(self, hs):
self.stream_ordering_month_ago = None
super(EventPushActionsStore, self).__init__(hs)
def _set_push_actions_for_event_and_users_txn(self, txn, event, tuples):
"""
Args:
event: the event set actions for
tuples: list of tuples of (user_id, actions)
"""
values = []
for uid, actions in tuples:
values.append({
'room_id': event.room_id,
'event_id': event.event_id,
'user_id': uid,
'actions': json.dumps(actions),
'stream_ordering': event.internal_metadata.stream_ordering,
'topological_ordering': event.depth,
'notif': 1,
'highlight': 1 if _action_has_highlight(actions) else 0,
})
for uid, __ in tuples:
txn.call_after(
self.get_unread_event_push_actions_by_room_for_user.invalidate_many,
(event.room_id, uid)
)
self._simple_insert_many_txn(txn, "event_push_actions", values)
@cachedInlineCallbacks(num_args=3, lru=True, tree=True, max_entries=5000)
def get_unread_event_push_actions_by_room_for_user(
self, room_id, user_id, last_read_event_id
):
def _get_unread_event_push_actions_by_room(txn):
sql = (
"SELECT stream_ordering, topological_ordering"
" FROM events"
" WHERE room_id = ? AND event_id = ?"
)
txn.execute(
sql, (room_id, last_read_event_id)
)
results = txn.fetchall()
if len(results) == 0:
return {"notify_count": 0, "highlight_count": 0}
stream_ordering = results[0][0]
topological_ordering = results[0][1]
token = RoomStreamToken(
topological_ordering, stream_ordering
)
sql = (
"SELECT sum(notif), sum(highlight)"
" FROM event_push_actions ea"
" WHERE"
" user_id = ?"
" AND room_id = ?"
" AND %s"
) % (lower_bound(token, self.database_engine, inclusive=False),)
txn.execute(sql, (user_id, room_id))
row = txn.fetchone()
if row:
return {
"notify_count": row[0] or 0,
"highlight_count": row[1] or 0,
}
else:
return {"notify_count": 0, "highlight_count": 0}
ret = yield self.runInteraction(
"get_unread_event_push_actions_by_room",
_get_unread_event_push_actions_by_room
)
defer.returnValue(ret)
@defer.inlineCallbacks
def get_push_action_users_in_range(self, min_stream_ordering, max_stream_ordering):
def f(txn):
sql = (
"SELECT DISTINCT(user_id) FROM event_push_actions WHERE"
" stream_ordering >= ? AND stream_ordering <= ?"
)
txn.execute(sql, (min_stream_ordering, max_stream_ordering))
return [r[0] for r in txn.fetchall()]
ret = yield self.runInteraction("get_push_action_users_in_range", f)
defer.returnValue(ret)
@defer.inlineCallbacks
def get_unread_push_actions_for_user_in_range_for_http(
self, user_id, min_stream_ordering, max_stream_ordering, limit=20
):
"""Get a list of the most recent unread push actions for a given user,
within the given stream ordering range. Called by the httppusher.
Args:
user_id (str): The user to fetch push actions for.
min_stream_ordering(int): The exclusive lower bound on the
stream ordering of event push actions to fetch.
max_stream_ordering(int): The inclusive upper bound on the
stream ordering of event push actions to fetch.
limit (int): The maximum number of rows to return.
Returns:
A promise which resolves to a list of dicts with the keys "event_id",
"room_id", "stream_ordering", "actions".
The list will be ordered by ascending stream_ordering.
The list will have between 0~limit entries.
"""
# find rooms that have a read receipt in them and return the next
# push actions
def get_after_receipt(txn):
# find rooms that have a read receipt in them and return the next
# push actions
sql = (
"SELECT ep.event_id, ep.room_id, ep.stream_ordering, ep.actions"
" FROM ("
" SELECT room_id,"
" MAX(topological_ordering) as topological_ordering,"
" MAX(stream_ordering) as stream_ordering"
" FROM events"
" INNER JOIN receipts_linearized USING (room_id, event_id)"
" WHERE receipt_type = 'm.read' AND user_id = ?"
" GROUP BY room_id"
") AS rl,"
" event_push_actions AS ep"
" WHERE"
" ep.room_id = rl.room_id"
" AND ("
" ep.topological_ordering > rl.topological_ordering"
" OR ("
" ep.topological_ordering = rl.topological_ordering"
" AND ep.stream_ordering > rl.stream_ordering"
" )"
" )"
" AND ep.user_id = ?"
" AND ep.stream_ordering > ?"
" AND ep.stream_ordering <= ?"
" ORDER BY ep.stream_ordering ASC LIMIT ?"
)
args = [
user_id, user_id,
min_stream_ordering, max_stream_ordering, limit,
]
txn.execute(sql, args)
return txn.fetchall()
after_read_receipt = yield self.runInteraction(
"get_unread_push_actions_for_user_in_range_http_arr", get_after_receipt
)
# There are rooms with push actions in them but you don't have a read receipt in
# them e.g. rooms you've been invited to, so get push actions for rooms which do
# not have read receipts in them too.
def get_no_receipt(txn):
sql = (
"SELECT ep.event_id, ep.room_id, ep.stream_ordering, ep.actions,"
" e.received_ts"
" FROM event_push_actions AS ep"
" INNER JOIN events AS e USING (room_id, event_id)"
" WHERE"
" ep.room_id NOT IN ("
" SELECT room_id FROM receipts_linearized"
" WHERE receipt_type = 'm.read' AND user_id = ?"
" GROUP BY room_id"
" )"
" AND ep.user_id = ?"
" AND ep.stream_ordering > ?"
" AND ep.stream_ordering <= ?"
" ORDER BY ep.stream_ordering ASC LIMIT ?"
)
args = [
user_id, user_id,
min_stream_ordering, max_stream_ordering, limit,
]
txn.execute(sql, args)
return txn.fetchall()
no_read_receipt = yield self.runInteraction(
"get_unread_push_actions_for_user_in_range_http_nrr", get_no_receipt
)
notifs = [
{
"event_id": row[0],
"room_id": row[1],
"stream_ordering": row[2],
"actions": json.loads(row[3]),
} for row in after_read_receipt + no_read_receipt
]
# Now sort it so it's ordered correctly, since currently it will
# contain results from the first query, correctly ordered, followed
# by results from the second query, but we want them all ordered
# by stream_ordering, oldest first.
notifs.sort(key=lambda r: r['stream_ordering'])
# Take only up to the limit. We have to stop at the limit because
# one of the subqueries may have hit the limit.
defer.returnValue(notifs[:limit])
@defer.inlineCallbacks
def get_unread_push_actions_for_user_in_range_for_email(
self, user_id, min_stream_ordering, max_stream_ordering, limit=20
):
"""Get a list of the most recent unread push actions for a given user,
within the given stream ordering range. Called by the emailpusher
Args:
user_id (str): The user to fetch push actions for.
min_stream_ordering(int): The exclusive lower bound on the
stream ordering of event push actions to fetch.
max_stream_ordering(int): The inclusive upper bound on the
stream ordering of event push actions to fetch.
limit (int): The maximum number of rows to return.
Returns:
A promise which resolves to a list of dicts with the keys "event_id",
"room_id", "stream_ordering", "actions", "received_ts".
The list will be ordered by descending received_ts.
The list will have between 0~limit entries.
"""
# find rooms that have a read receipt in them and return the most recent
# push actions
def get_after_receipt(txn):
sql = (
"SELECT ep.event_id, ep.room_id, ep.stream_ordering, ep.actions,"
" e.received_ts"
" FROM ("
" SELECT room_id,"
" MAX(topological_ordering) as topological_ordering,"
" MAX(stream_ordering) as stream_ordering"
" FROM events"
" INNER JOIN receipts_linearized USING (room_id, event_id)"
" WHERE receipt_type = 'm.read' AND user_id = ?"
" GROUP BY room_id"
") AS rl,"
" event_push_actions AS ep"
" INNER JOIN events AS e USING (room_id, event_id)"
" WHERE"
" ep.room_id = rl.room_id"
" AND ("
" ep.topological_ordering > rl.topological_ordering"
" OR ("
" ep.topological_ordering = rl.topological_ordering"
" AND ep.stream_ordering > rl.stream_ordering"
" )"
" )"
" AND ep.user_id = ?"
" AND ep.stream_ordering > ?"
" AND ep.stream_ordering <= ?"
" ORDER BY ep.stream_ordering DESC LIMIT ?"
)
args = [
user_id, user_id,
min_stream_ordering, max_stream_ordering, limit,
]
txn.execute(sql, args)
return txn.fetchall()
after_read_receipt = yield self.runInteraction(
"get_unread_push_actions_for_user_in_range_email_arr", get_after_receipt
)
# There are rooms with push actions in them but you don't have a read receipt in
# them e.g. rooms you've been invited to, so get push actions for rooms which do
# not have read receipts in them too.
def get_no_receipt(txn):
sql = (
"SELECT ep.event_id, ep.room_id, ep.stream_ordering, ep.actions,"
" e.received_ts"
" FROM event_push_actions AS ep"
" INNER JOIN events AS e USING (room_id, event_id)"
" WHERE"
" ep.room_id NOT IN ("
" SELECT room_id FROM receipts_linearized"
" WHERE receipt_type = 'm.read' AND user_id = ?"
" GROUP BY room_id"
" )"
" AND ep.user_id = ?"
" AND ep.stream_ordering > ?"
" AND ep.stream_ordering <= ?"
" ORDER BY ep.stream_ordering DESC LIMIT ?"
)
args = [
user_id, user_id,
min_stream_ordering, max_stream_ordering, limit,
]
txn.execute(sql, args)
return txn.fetchall()
no_read_receipt = yield self.runInteraction(
"get_unread_push_actions_for_user_in_range_email_nrr", get_no_receipt
)
# Make a list of dicts from the two sets of results.
notifs = [
{
"event_id": row[0],
"room_id": row[1],
"stream_ordering": row[2],
"actions": json.loads(row[3]),
"received_ts": row[4],
} for row in after_read_receipt + no_read_receipt
]
# Now sort it so it's ordered correctly, since currently it will
# contain results from the first query, correctly ordered, followed
# by results from the second query, but we want them all ordered
# by received_ts (most recent first)
notifs.sort(key=lambda r: -(r['received_ts'] or 0))
# Now return the first `limit`
defer.returnValue(notifs[:limit])
@defer.inlineCallbacks
def get_time_of_last_push_action_before(self, stream_ordering):
def f(txn):
sql = (
"SELECT e.received_ts"
" FROM event_push_actions AS ep"
" JOIN events e ON ep.room_id = e.room_id AND ep.event_id = e.event_id"
" WHERE ep.stream_ordering > ?"
" ORDER BY ep.stream_ordering ASC"
" LIMIT 1"
)
txn.execute(sql, (stream_ordering,))
return txn.fetchone()
result = yield self.runInteraction("get_time_of_last_push_action_before", f)
defer.returnValue(result[0] if result else None)
@defer.inlineCallbacks
def get_latest_push_action_stream_ordering(self):
def f(txn):
txn.execute("SELECT MAX(stream_ordering) FROM event_push_actions")
return txn.fetchone()
result = yield self.runInteraction(
"get_latest_push_action_stream_ordering", f
)
defer.returnValue(result[0] or 0)
def _remove_push_actions_for_event_id_txn(self, txn, room_id, event_id):
# Sad that we have to blow away the cache for the whole room here
txn.call_after(
self.get_unread_event_push_actions_by_room_for_user.invalidate_many,
(room_id,)
)
txn.execute(
"DELETE FROM event_push_actions WHERE room_id = ? AND event_id = ?",
(room_id, event_id)
)
def _remove_old_push_actions_before_txn(self, txn, room_id, user_id,
topological_ordering):
"""
Purges old, stale push actions for a user and room before a given
topological_ordering
Args:
txn: The transcation
room_id: Room ID to delete from
user_id: user ID to delete for
topological_ordering: The lowest topological ordering which will
not be deleted.
"""
txn.call_after(
self.get_unread_event_push_actions_by_room_for_user.invalidate_many,
(room_id, user_id, )
)
# We need to join on the events table to get the received_ts for
# event_push_actions and sqlite won't let us use a join in a delete so
# we can't just delete where received_ts < x. Furthermore we can
# only identify event_push_actions by a tuple of room_id, event_id
# we we can't use a subquery.
# Instead, we look up the stream ordering for the last event in that
# room received before the threshold time and delete event_push_actions
# in the room with a stream_odering before that.
txn.execute(
"DELETE FROM event_push_actions "
" WHERE user_id = ? AND room_id = ? AND "
" topological_ordering < ? AND stream_ordering < ?",
(user_id, room_id, topological_ordering, self.stream_ordering_month_ago)
)
@defer.inlineCallbacks
def _find_stream_orderings_for_times(self):
yield self.runInteraction(
"_find_stream_orderings_for_times",
self._find_stream_orderings_for_times_txn
)
def _find_stream_orderings_for_times_txn(self, txn):
logger.info("Searching for stream ordering 1 month ago")
self.stream_ordering_month_ago = self._find_first_stream_ordering_after_ts_txn(
txn, self._clock.time_msec() - 30 * 24 * 60 * 60 * 1000
)
logger.info(
"Found stream ordering 1 month ago: it's %d",
self.stream_ordering_month_ago
)
def _find_first_stream_ordering_after_ts_txn(self, txn, ts):
"""
Find the stream_ordering of the first event that was received after
a given timestamp. This is relatively slow as there is no index on
received_ts but we can then use this to delete push actions before
this.
received_ts must necessarily be in the same order as stream_ordering
and stream_ordering is indexed, so we manually binary search using
stream_ordering
"""
txn.execute("SELECT MAX(stream_ordering) FROM events")
max_stream_ordering = txn.fetchone()[0]
if max_stream_ordering is None:
return 0
range_start = 0
range_end = max_stream_ordering
sql = (
"SELECT received_ts FROM events"
" WHERE stream_ordering > ?"
" ORDER BY stream_ordering"
" LIMIT 1"
)
while range_end - range_start > 1:
middle = int((range_end + range_start) / 2)
txn.execute(sql, (middle,))
middle_ts = txn.fetchone()[0]
if ts > middle_ts:
range_start = middle
else:
range_end = middle
return range_end
def _action_has_highlight(actions):
for action in actions:
try:
if action.get("set_tweak", None) == "highlight":
return action.get("value", True)
except AttributeError:
pass
return False