330 lines
13 KiB
Python
330 lines
13 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 2015 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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from ._base import SQLBaseStore
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from twisted.internet import defer
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from synapse.util.caches.descriptors import cachedInlineCallbacks
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import logging
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import ujson as json
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logger = logging.getLogger(__name__)
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class EventPushActionsStore(SQLBaseStore):
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def __init__(self, hs):
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self.stream_ordering_month_ago = None
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super(EventPushActionsStore, self).__init__(hs)
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def _set_push_actions_for_event_and_users_txn(self, txn, event, tuples):
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"""
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Args:
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event: the event set actions for
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tuples: list of tuples of (user_id, actions)
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"""
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values = []
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for uid, actions in tuples:
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values.append({
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'room_id': event.room_id,
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'event_id': event.event_id,
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'user_id': uid,
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'actions': json.dumps(actions),
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'stream_ordering': event.internal_metadata.stream_ordering,
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'topological_ordering': event.depth,
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'notif': 1,
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'highlight': 1 if _action_has_highlight(actions) else 0,
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})
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for uid, __ in tuples:
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txn.call_after(
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self.get_unread_event_push_actions_by_room_for_user.invalidate_many,
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(event.room_id, uid)
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)
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self._simple_insert_many_txn(txn, "event_push_actions", values)
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@cachedInlineCallbacks(num_args=3, lru=True, tree=True, max_entries=5000)
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def get_unread_event_push_actions_by_room_for_user(
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self, room_id, user_id, last_read_event_id
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):
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def _get_unread_event_push_actions_by_room(txn):
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sql = (
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"SELECT stream_ordering, topological_ordering"
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" FROM events"
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" WHERE room_id = ? AND event_id = ?"
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)
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txn.execute(
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sql, (room_id, last_read_event_id)
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)
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results = txn.fetchall()
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if len(results) == 0:
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return {"notify_count": 0, "highlight_count": 0}
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stream_ordering = results[0][0]
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topological_ordering = results[0][1]
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sql = (
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"SELECT sum(notif), sum(highlight)"
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" FROM event_push_actions ea"
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" WHERE"
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" user_id = ?"
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" AND room_id = ?"
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" AND ("
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" topological_ordering > ?"
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" OR (topological_ordering = ? AND stream_ordering > ?)"
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")"
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)
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txn.execute(sql, (
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user_id, room_id,
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topological_ordering, topological_ordering, stream_ordering
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))
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row = txn.fetchone()
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if row:
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return {
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"notify_count": row[0] or 0,
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"highlight_count": row[1] or 0,
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}
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else:
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return {"notify_count": 0, "highlight_count": 0}
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ret = yield self.runInteraction(
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"get_unread_event_push_actions_by_room",
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_get_unread_event_push_actions_by_room
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)
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defer.returnValue(ret)
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@defer.inlineCallbacks
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def get_push_action_users_in_range(self, min_stream_ordering, max_stream_ordering):
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def f(txn):
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sql = (
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"SELECT DISTINCT(user_id) FROM event_push_actions WHERE"
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" stream_ordering >= ? AND stream_ordering <= ?"
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)
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txn.execute(sql, (min_stream_ordering, max_stream_ordering))
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return [r[0] for r in txn.fetchall()]
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ret = yield self.runInteraction("get_push_action_users_in_range", f)
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defer.returnValue(ret)
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@defer.inlineCallbacks
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def get_unread_push_actions_for_user_in_range(self, user_id,
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min_stream_ordering,
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max_stream_ordering=None,
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limit=20):
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def get_after_receipt(txn):
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sql = (
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"SELECT ep.event_id, ep.room_id, ep.stream_ordering, ep.actions, "
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"e.received_ts "
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"FROM ("
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" SELECT room_id, user_id, "
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" max(topological_ordering) as topological_ordering, "
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" max(stream_ordering) as stream_ordering "
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" FROM events"
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" NATURAL JOIN receipts_linearized WHERE receipt_type = 'm.read'"
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" GROUP BY room_id, user_id"
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") AS rl,"
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" event_push_actions AS ep"
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" INNER JOIN events AS e USING (room_id, event_id)"
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" WHERE"
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" ep.room_id = rl.room_id"
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" AND ("
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" ep.topological_ordering > rl.topological_ordering"
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" OR ("
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" ep.topological_ordering = rl.topological_ordering"
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" AND ep.stream_ordering > rl.stream_ordering"
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" )"
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" )"
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" AND ep.stream_ordering > ?"
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" AND ep.user_id = ?"
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" AND ep.user_id = rl.user_id"
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)
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args = [min_stream_ordering, user_id]
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if max_stream_ordering is not None:
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sql += " AND ep.stream_ordering <= ?"
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args.append(max_stream_ordering)
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sql += " ORDER BY ep.stream_ordering ASC LIMIT ?"
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args.append(limit)
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txn.execute(sql, args)
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return txn.fetchall()
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after_read_receipt = yield self.runInteraction(
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"get_unread_push_actions_for_user_in_range", get_after_receipt
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)
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def get_no_receipt(txn):
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sql = (
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"SELECT ep.event_id, ep.room_id, ep.stream_ordering, ep.actions,"
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" e.received_ts"
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" FROM event_push_actions AS ep"
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" JOIN events e ON ep.room_id = e.room_id AND ep.event_id = e.event_id"
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" WHERE ep.room_id not in ("
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" SELECT room_id FROM events NATURAL JOIN receipts_linearized"
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" WHERE receipt_type = 'm.read' AND user_id = ?"
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" GROUP BY room_id"
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") AND ep.user_id = ? AND ep.stream_ordering > ?"
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)
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args = [user_id, user_id, min_stream_ordering]
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if max_stream_ordering is not None:
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sql += " AND ep.stream_ordering <= ?"
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args.append(max_stream_ordering)
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sql += " ORDER BY ep.stream_ordering ASC"
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txn.execute(sql, args)
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return txn.fetchall()
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no_read_receipt = yield self.runInteraction(
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"get_unread_push_actions_for_user_in_range", get_no_receipt
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)
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defer.returnValue([
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{
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"event_id": row[0],
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"room_id": row[1],
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"stream_ordering": row[2],
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"actions": json.loads(row[3]),
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"received_ts": row[4],
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} for row in after_read_receipt + no_read_receipt
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])
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@defer.inlineCallbacks
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def get_time_of_last_push_action_before(self, stream_ordering):
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def f(txn):
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sql = (
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"SELECT e.received_ts"
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" FROM event_push_actions AS ep"
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" JOIN events e ON ep.room_id = e.room_id AND ep.event_id = e.event_id"
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" WHERE ep.stream_ordering > ?"
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" ORDER BY ep.stream_ordering ASC"
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" LIMIT 1"
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)
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txn.execute(sql, (stream_ordering,))
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return txn.fetchone()
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result = yield self.runInteraction("get_time_of_last_push_action_before", f)
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defer.returnValue(result[0] if result else None)
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@defer.inlineCallbacks
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def get_latest_push_action_stream_ordering(self):
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def f(txn):
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txn.execute("SELECT MAX(stream_ordering) FROM event_push_actions")
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return txn.fetchone()
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result = yield self.runInteraction(
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"get_latest_push_action_stream_ordering", f
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)
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defer.returnValue(result[0] or 0)
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def _remove_push_actions_for_event_id_txn(self, txn, room_id, event_id):
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# Sad that we have to blow away the cache for the whole room here
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txn.call_after(
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self.get_unread_event_push_actions_by_room_for_user.invalidate_many,
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(room_id,)
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)
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txn.execute(
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"DELETE FROM event_push_actions WHERE room_id = ? AND event_id = ?",
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(room_id, event_id)
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)
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def _remove_old_push_actions_before_txn(self, txn, room_id, user_id,
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topological_ordering):
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"""
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Purges old, stale push actions for a user and room before a given
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topological_ordering
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Args:
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txn: The transcation
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room_id: Room ID to delete from
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user_id: user ID to delete for
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topological_ordering: The lowest topological ordering which will
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not be deleted.
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"""
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txn.call_after(
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self.get_unread_event_push_actions_by_room_for_user.invalidate_many,
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(room_id, user_id, )
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)
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# We need to join on the events table to get the received_ts for
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# event_push_actions and sqlite won't let us use a join in a delete so
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# we can't just delete where received_ts < x. Furthermore we can
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# only identify event_push_actions by a tuple of room_id, event_id
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# we we can't use a subquery.
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# Instead, we look up the stream ordering for the last event in that
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# room received before the threshold time and delete event_push_actions
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# in the room with a stream_odering before that.
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txn.execute(
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"DELETE FROM event_push_actions "
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" WHERE user_id = ? AND room_id = ? AND "
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" topological_ordering < ? AND stream_ordering < ?",
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(user_id, room_id, topological_ordering, self.stream_ordering_month_ago)
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)
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@defer.inlineCallbacks
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def _find_stream_orderings_for_times(self):
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yield self.runInteraction(
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"_find_stream_orderings_for_times",
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self._find_stream_orderings_for_times_txn
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)
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def _find_stream_orderings_for_times_txn(self, txn):
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logger.info("Searching for stream ordering 1 month ago")
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self.stream_ordering_month_ago = self._find_first_stream_ordering_after_ts_txn(
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txn, self._clock.time_msec() - 30 * 24 * 60 * 60 * 1000
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)
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logger.info(
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"Found stream ordering 1 month ago: it's %d",
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self.stream_ordering_month_ago
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)
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def _find_first_stream_ordering_after_ts_txn(self, txn, ts):
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"""
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Find the stream_ordering of the first event that was received after
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a given timestamp. This is relatively slow as there is no index on
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received_ts but we can then use this to delete push actions before
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this.
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received_ts must necessarily be in the same order as stream_ordering
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and stream_ordering is indexed, so we manually binary search using
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stream_ordering
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"""
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txn.execute("SELECT MAX(stream_ordering) FROM events")
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max_stream_ordering = txn.fetchone()[0]
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if max_stream_ordering is None:
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return 0
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range_start = 0
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range_end = max_stream_ordering
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sql = (
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"SELECT received_ts FROM events"
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" WHERE stream_ordering > ?"
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" ORDER BY stream_ordering"
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" LIMIT 1"
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)
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while range_end - range_start > 1:
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middle = int((range_end + range_start) / 2)
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txn.execute(sql, (middle,))
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middle_ts = txn.fetchone()[0]
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if ts > middle_ts:
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range_start = middle
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else:
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range_end = middle
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return range_end
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def _action_has_highlight(actions):
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for action in actions:
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try:
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if action.get("set_tweak", None) == "highlight":
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return action.get("value", True)
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except AttributeError:
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pass
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return False
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