606 lines
22 KiB
Python
606 lines
22 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 2014-2016 OpenMarket Ltd
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# Copyright 2018 New Vector 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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import abc
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import logging
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from canonicaljson import json
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from twisted.internet import defer
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from synapse.api.constants import EventTypes
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from synapse.push.baserules import list_with_base_rules
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from synapse.storage.appservice import ApplicationServiceWorkerStore
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from synapse.storage.pusher import PusherWorkerStore
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from synapse.storage.receipts import ReceiptsWorkerStore
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from synapse.storage.roommember import RoomMemberWorkerStore
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from synapse.util.caches.descriptors import cachedInlineCallbacks, cachedList
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from synapse.util.caches.stream_change_cache import StreamChangeCache
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from ._base import SQLBaseStore
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logger = logging.getLogger(__name__)
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def _load_rules(rawrules, enabled_map):
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ruleslist = []
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for rawrule in rawrules:
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rule = dict(rawrule)
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rule["conditions"] = json.loads(rawrule["conditions"])
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rule["actions"] = json.loads(rawrule["actions"])
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ruleslist.append(rule)
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# We're going to be mutating this a lot, so do a deep copy
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rules = list(list_with_base_rules(ruleslist))
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for i, rule in enumerate(rules):
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rule_id = rule['rule_id']
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if rule_id in enabled_map:
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if rule.get('enabled', True) != bool(enabled_map[rule_id]):
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# Rules are cached across users.
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rule = dict(rule)
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rule['enabled'] = bool(enabled_map[rule_id])
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rules[i] = rule
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return rules
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class PushRulesWorkerStore(ApplicationServiceWorkerStore,
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ReceiptsWorkerStore,
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PusherWorkerStore,
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RoomMemberWorkerStore,
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SQLBaseStore):
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"""This is an abstract base class where subclasses must implement
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`get_max_push_rules_stream_id` which can be called in the initializer.
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"""
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# This ABCMeta metaclass ensures that we cannot be instantiated without
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# the abstract methods being implemented.
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__metaclass__ = abc.ABCMeta
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def __init__(self, db_conn, hs):
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super(PushRulesWorkerStore, self).__init__(db_conn, hs)
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push_rules_prefill, push_rules_id = self._get_cache_dict(
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db_conn, "push_rules_stream",
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entity_column="user_id",
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stream_column="stream_id",
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max_value=self.get_max_push_rules_stream_id(),
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)
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self.push_rules_stream_cache = StreamChangeCache(
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"PushRulesStreamChangeCache", push_rules_id,
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prefilled_cache=push_rules_prefill,
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)
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@abc.abstractmethod
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def get_max_push_rules_stream_id(self):
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"""Get the position of the push rules stream.
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Returns:
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int
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"""
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raise NotImplementedError()
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@cachedInlineCallbacks(max_entries=5000)
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def get_push_rules_for_user(self, user_id):
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rows = yield self._simple_select_list(
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table="push_rules",
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keyvalues={
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"user_name": user_id,
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},
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retcols=(
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"user_name", "rule_id", "priority_class", "priority",
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"conditions", "actions",
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),
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desc="get_push_rules_enabled_for_user",
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)
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rows.sort(
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key=lambda row: (-int(row["priority_class"]), -int(row["priority"]))
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)
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enabled_map = yield self.get_push_rules_enabled_for_user(user_id)
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rules = _load_rules(rows, enabled_map)
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defer.returnValue(rules)
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@cachedInlineCallbacks(max_entries=5000)
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def get_push_rules_enabled_for_user(self, user_id):
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results = yield self._simple_select_list(
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table="push_rules_enable",
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keyvalues={
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'user_name': user_id
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},
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retcols=(
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"user_name", "rule_id", "enabled",
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),
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desc="get_push_rules_enabled_for_user",
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)
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defer.returnValue({
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r['rule_id']: False if r['enabled'] == 0 else True for r in results
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})
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def have_push_rules_changed_for_user(self, user_id, last_id):
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if not self.push_rules_stream_cache.has_entity_changed(user_id, last_id):
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return defer.succeed(False)
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else:
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def have_push_rules_changed_txn(txn):
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sql = (
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"SELECT COUNT(stream_id) FROM push_rules_stream"
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" WHERE user_id = ? AND ? < stream_id"
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)
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txn.execute(sql, (user_id, last_id))
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count, = txn.fetchone()
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return bool(count)
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return self.runInteraction(
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"have_push_rules_changed", have_push_rules_changed_txn
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)
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@cachedList(cached_method_name="get_push_rules_for_user",
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list_name="user_ids", num_args=1, inlineCallbacks=True)
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def bulk_get_push_rules(self, user_ids):
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if not user_ids:
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defer.returnValue({})
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results = {
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user_id: []
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for user_id in user_ids
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}
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rows = yield self._simple_select_many_batch(
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table="push_rules",
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column="user_name",
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iterable=user_ids,
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retcols=("*",),
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desc="bulk_get_push_rules",
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)
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rows.sort(
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key=lambda row: (-int(row["priority_class"]), -int(row["priority"]))
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)
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for row in rows:
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results.setdefault(row['user_name'], []).append(row)
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enabled_map_by_user = yield self.bulk_get_push_rules_enabled(user_ids)
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for user_id, rules in results.items():
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results[user_id] = _load_rules(
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rules, enabled_map_by_user.get(user_id, {})
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)
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defer.returnValue(results)
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@defer.inlineCallbacks
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def bulk_get_push_rules_for_room(self, event, context):
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state_group = context.state_group
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if not state_group:
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# If state_group is None it means it has yet to be assigned a
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# state group, i.e. we need to make sure that calls with a state_group
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# of None don't hit previous cached calls with a None state_group.
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# To do this we set the state_group to a new object as object() != object()
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state_group = object()
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current_state_ids = yield context.get_current_state_ids(self)
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result = yield self._bulk_get_push_rules_for_room(
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event.room_id, state_group, current_state_ids, event=event
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)
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defer.returnValue(result)
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@cachedInlineCallbacks(num_args=2, cache_context=True)
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def _bulk_get_push_rules_for_room(self, room_id, state_group, current_state_ids,
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cache_context, event=None):
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# We don't use `state_group`, its there so that we can cache based
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# on it. However, its important that its never None, since two current_state's
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# with a state_group of None are likely to be different.
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# See bulk_get_push_rules_for_room for how we work around this.
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assert state_group is not None
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# We also will want to generate notifs for other people in the room so
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# their unread countss are correct in the event stream, but to avoid
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# generating them for bot / AS users etc, we only do so for people who've
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# sent a read receipt into the room.
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users_in_room = yield self._get_joined_users_from_context(
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room_id, state_group, current_state_ids,
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on_invalidate=cache_context.invalidate,
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event=event,
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)
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# We ignore app service users for now. This is so that we don't fill
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# up the `get_if_users_have_pushers` cache with AS entries that we
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# know don't have pushers, nor even read receipts.
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local_users_in_room = set(
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u for u in users_in_room
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if self.hs.is_mine_id(u)
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and not self.get_if_app_services_interested_in_user(u)
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)
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# users in the room who have pushers need to get push rules run because
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# that's how their pushers work
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if_users_with_pushers = yield self.get_if_users_have_pushers(
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local_users_in_room,
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on_invalidate=cache_context.invalidate,
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)
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user_ids = set(
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uid for uid, have_pusher in if_users_with_pushers.items() if have_pusher
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)
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users_with_receipts = yield self.get_users_with_read_receipts_in_room(
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room_id, on_invalidate=cache_context.invalidate,
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)
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# any users with pushers must be ours: they have pushers
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for uid in users_with_receipts:
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if uid in local_users_in_room:
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user_ids.add(uid)
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forgotten = yield self.who_forgot_in_room(
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event.room_id, on_invalidate=cache_context.invalidate,
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)
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for row in forgotten:
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user_id = row["user_id"]
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event_id = row["event_id"]
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mem_id = current_state_ids.get((EventTypes.Member, user_id), None)
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if event_id == mem_id:
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user_ids.discard(user_id)
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rules_by_user = yield self.bulk_get_push_rules(
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user_ids, on_invalidate=cache_context.invalidate,
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)
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rules_by_user = {k: v for k, v in rules_by_user.items() if v is not None}
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defer.returnValue(rules_by_user)
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@cachedList(cached_method_name="get_push_rules_enabled_for_user",
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list_name="user_ids", num_args=1, inlineCallbacks=True)
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def bulk_get_push_rules_enabled(self, user_ids):
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if not user_ids:
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defer.returnValue({})
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results = {
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user_id: {}
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for user_id in user_ids
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}
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rows = yield self._simple_select_many_batch(
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table="push_rules_enable",
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column="user_name",
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iterable=user_ids,
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retcols=("user_name", "rule_id", "enabled",),
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desc="bulk_get_push_rules_enabled",
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)
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for row in rows:
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enabled = bool(row['enabled'])
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results.setdefault(row['user_name'], {})[row['rule_id']] = enabled
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defer.returnValue(results)
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class PushRuleStore(PushRulesWorkerStore):
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@defer.inlineCallbacks
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def add_push_rule(
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self, user_id, rule_id, priority_class, conditions, actions,
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before=None, after=None
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):
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conditions_json = json.dumps(conditions)
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actions_json = json.dumps(actions)
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with self._push_rules_stream_id_gen.get_next() as ids:
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stream_id, event_stream_ordering = ids
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if before or after:
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yield self.runInteraction(
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"_add_push_rule_relative_txn",
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self._add_push_rule_relative_txn,
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stream_id, event_stream_ordering, user_id, rule_id, priority_class,
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conditions_json, actions_json, before, after,
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)
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else:
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yield self.runInteraction(
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"_add_push_rule_highest_priority_txn",
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self._add_push_rule_highest_priority_txn,
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stream_id, event_stream_ordering, user_id, rule_id, priority_class,
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conditions_json, actions_json,
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)
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def _add_push_rule_relative_txn(
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self, txn, stream_id, event_stream_ordering, user_id, rule_id, priority_class,
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conditions_json, actions_json, before, after
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):
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# Lock the table since otherwise we'll have annoying races between the
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# SELECT here and the UPSERT below.
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self.database_engine.lock_table(txn, "push_rules")
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relative_to_rule = before or after
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res = self._simple_select_one_txn(
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txn,
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table="push_rules",
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keyvalues={
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"user_name": user_id,
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"rule_id": relative_to_rule,
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},
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retcols=["priority_class", "priority"],
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allow_none=True,
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)
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if not res:
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raise RuleNotFoundException(
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"before/after rule not found: %s" % (relative_to_rule,)
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)
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base_priority_class = res["priority_class"]
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base_rule_priority = res["priority"]
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if base_priority_class != priority_class:
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raise InconsistentRuleException(
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"Given priority class does not match class of relative rule"
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)
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if before:
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# Higher priority rules are executed first, So adding a rule before
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# a rule means giving it a higher priority than that rule.
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new_rule_priority = base_rule_priority + 1
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else:
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# We increment the priority of the existing rules to make space for
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# the new rule. Therefore if we want this rule to appear after
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# an existing rule we give it the priority of the existing rule,
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# and then increment the priority of the existing rule.
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new_rule_priority = base_rule_priority
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sql = (
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"UPDATE push_rules SET priority = priority + 1"
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" WHERE user_name = ? AND priority_class = ? AND priority >= ?"
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)
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txn.execute(sql, (user_id, priority_class, new_rule_priority))
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self._upsert_push_rule_txn(
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txn, stream_id, event_stream_ordering, user_id, rule_id, priority_class,
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new_rule_priority, conditions_json, actions_json,
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)
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def _add_push_rule_highest_priority_txn(
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self, txn, stream_id, event_stream_ordering, user_id, rule_id, priority_class,
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conditions_json, actions_json
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):
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# Lock the table since otherwise we'll have annoying races between the
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# SELECT here and the UPSERT below.
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self.database_engine.lock_table(txn, "push_rules")
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# find the highest priority rule in that class
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sql = (
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"SELECT COUNT(*), MAX(priority) FROM push_rules"
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" WHERE user_name = ? and priority_class = ?"
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)
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txn.execute(sql, (user_id, priority_class))
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res = txn.fetchall()
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(how_many, highest_prio) = res[0]
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new_prio = 0
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if how_many > 0:
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new_prio = highest_prio + 1
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self._upsert_push_rule_txn(
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txn,
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stream_id, event_stream_ordering, user_id, rule_id, priority_class, new_prio,
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conditions_json, actions_json,
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)
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def _upsert_push_rule_txn(
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self, txn, stream_id, event_stream_ordering, user_id, rule_id, priority_class,
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priority, conditions_json, actions_json, update_stream=True
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):
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"""Specialised version of _simple_upsert_txn that picks a push_rule_id
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using the _push_rule_id_gen if it needs to insert the rule. It assumes
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that the "push_rules" table is locked"""
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sql = (
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"UPDATE push_rules"
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" SET priority_class = ?, priority = ?, conditions = ?, actions = ?"
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" WHERE user_name = ? AND rule_id = ?"
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)
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txn.execute(sql, (
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priority_class, priority, conditions_json, actions_json,
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user_id, rule_id,
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))
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if txn.rowcount == 0:
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# We didn't update a row with the given rule_id so insert one
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push_rule_id = self._push_rule_id_gen.get_next()
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self._simple_insert_txn(
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txn,
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table="push_rules",
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values={
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"id": push_rule_id,
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"user_name": user_id,
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"rule_id": rule_id,
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"priority_class": priority_class,
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"priority": priority,
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"conditions": conditions_json,
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"actions": actions_json,
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},
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)
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if update_stream:
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self._insert_push_rules_update_txn(
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txn, stream_id, event_stream_ordering, user_id, rule_id,
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op="ADD",
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data={
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"priority_class": priority_class,
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"priority": priority,
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"conditions": conditions_json,
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"actions": actions_json,
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}
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)
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@defer.inlineCallbacks
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def delete_push_rule(self, user_id, rule_id):
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"""
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Delete a push rule. Args specify the row to be deleted and can be
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any of the columns in the push_rule table, but below are the
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standard ones
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Args:
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user_id (str): The matrix ID of the push rule owner
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rule_id (str): The rule_id of the rule to be deleted
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"""
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def delete_push_rule_txn(txn, stream_id, event_stream_ordering):
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self._simple_delete_one_txn(
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txn,
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"push_rules",
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{'user_name': user_id, 'rule_id': rule_id},
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)
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self._insert_push_rules_update_txn(
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txn, stream_id, event_stream_ordering, user_id, rule_id,
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op="DELETE"
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)
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with self._push_rules_stream_id_gen.get_next() as ids:
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stream_id, event_stream_ordering = ids
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yield self.runInteraction(
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"delete_push_rule", delete_push_rule_txn, stream_id, event_stream_ordering
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)
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@defer.inlineCallbacks
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def set_push_rule_enabled(self, user_id, rule_id, enabled):
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with self._push_rules_stream_id_gen.get_next() as ids:
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stream_id, event_stream_ordering = ids
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yield self.runInteraction(
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"_set_push_rule_enabled_txn",
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self._set_push_rule_enabled_txn,
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stream_id, event_stream_ordering, user_id, rule_id, enabled
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)
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def _set_push_rule_enabled_txn(
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self, txn, stream_id, event_stream_ordering, user_id, rule_id, enabled
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):
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new_id = self._push_rules_enable_id_gen.get_next()
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self._simple_upsert_txn(
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txn,
|
|
"push_rules_enable",
|
|
{'user_name': user_id, 'rule_id': rule_id},
|
|
{'enabled': 1 if enabled else 0},
|
|
{'id': new_id},
|
|
)
|
|
|
|
self._insert_push_rules_update_txn(
|
|
txn, stream_id, event_stream_ordering, user_id, rule_id,
|
|
op="ENABLE" if enabled else "DISABLE"
|
|
)
|
|
|
|
@defer.inlineCallbacks
|
|
def set_push_rule_actions(self, user_id, rule_id, actions, is_default_rule):
|
|
actions_json = json.dumps(actions)
|
|
|
|
def set_push_rule_actions_txn(txn, stream_id, event_stream_ordering):
|
|
if is_default_rule:
|
|
# Add a dummy rule to the rules table with the user specified
|
|
# actions.
|
|
priority_class = -1
|
|
priority = 1
|
|
self._upsert_push_rule_txn(
|
|
txn, stream_id, event_stream_ordering, user_id, rule_id,
|
|
priority_class, priority, "[]", actions_json,
|
|
update_stream=False
|
|
)
|
|
else:
|
|
self._simple_update_one_txn(
|
|
txn,
|
|
"push_rules",
|
|
{'user_name': user_id, 'rule_id': rule_id},
|
|
{'actions': actions_json},
|
|
)
|
|
|
|
self._insert_push_rules_update_txn(
|
|
txn, stream_id, event_stream_ordering, user_id, rule_id,
|
|
op="ACTIONS", data={"actions": actions_json}
|
|
)
|
|
|
|
with self._push_rules_stream_id_gen.get_next() as ids:
|
|
stream_id, event_stream_ordering = ids
|
|
yield self.runInteraction(
|
|
"set_push_rule_actions", set_push_rule_actions_txn,
|
|
stream_id, event_stream_ordering
|
|
)
|
|
|
|
def _insert_push_rules_update_txn(
|
|
self, txn, stream_id, event_stream_ordering, user_id, rule_id, op, data=None
|
|
):
|
|
values = {
|
|
"stream_id": stream_id,
|
|
"event_stream_ordering": event_stream_ordering,
|
|
"user_id": user_id,
|
|
"rule_id": rule_id,
|
|
"op": op,
|
|
}
|
|
if data is not None:
|
|
values.update(data)
|
|
|
|
self._simple_insert_txn(txn, "push_rules_stream", values=values)
|
|
|
|
txn.call_after(
|
|
self.get_push_rules_for_user.invalidate, (user_id,)
|
|
)
|
|
txn.call_after(
|
|
self.get_push_rules_enabled_for_user.invalidate, (user_id,)
|
|
)
|
|
txn.call_after(
|
|
self.push_rules_stream_cache.entity_has_changed, user_id, stream_id
|
|
)
|
|
|
|
def get_all_push_rule_updates(self, last_id, current_id, limit):
|
|
"""Get all the push rules changes that have happend on the server"""
|
|
if last_id == current_id:
|
|
return defer.succeed([])
|
|
|
|
def get_all_push_rule_updates_txn(txn):
|
|
sql = (
|
|
"SELECT stream_id, event_stream_ordering, user_id, rule_id,"
|
|
" op, priority_class, priority, conditions, actions"
|
|
" FROM push_rules_stream"
|
|
" WHERE ? < stream_id AND stream_id <= ?"
|
|
" ORDER BY stream_id ASC LIMIT ?"
|
|
)
|
|
txn.execute(sql, (last_id, current_id, limit))
|
|
return txn.fetchall()
|
|
return self.runInteraction(
|
|
"get_all_push_rule_updates", get_all_push_rule_updates_txn
|
|
)
|
|
|
|
def get_push_rules_stream_token(self):
|
|
"""Get the position of the push rules stream.
|
|
Returns a pair of a stream id for the push_rules stream and the
|
|
room stream ordering it corresponds to."""
|
|
return self._push_rules_stream_id_gen.get_current_token()
|
|
|
|
def get_max_push_rules_stream_id(self):
|
|
return self.get_push_rules_stream_token()[0]
|
|
|
|
|
|
class RuleNotFoundException(Exception):
|
|
pass
|
|
|
|
|
|
class InconsistentRuleException(Exception):
|
|
pass
|