mirror of
https://mau.dev/maunium/synapse.git
synced 2024-10-01 01:36:05 -04:00
430 lines
15 KiB
Python
430 lines
15 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 2014-2016 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 synapse.util.caches.descriptors import cachedInlineCallbacks, cachedList
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from twisted.internet import defer
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import logging
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import simplejson as json
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logger = logging.getLogger(__name__)
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class PushRuleStore(SQLBaseStore):
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@cachedInlineCallbacks(lru=True)
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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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defer.returnValue(rows)
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@cachedInlineCallbacks(lru=True)
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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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@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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defer.returnValue(results)
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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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results.setdefault(row['user_name'], {})[row['rule_id']] = row['enabled']
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defer.returnValue(results)
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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,
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"push_rules_enable",
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{'user_name': user_id, 'rule_id': rule_id},
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{'enabled': 1 if enabled else 0},
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{'id': new_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="ENABLE" if enabled else "DISABLE"
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)
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@defer.inlineCallbacks
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def set_push_rule_actions(self, user_id, rule_id, actions, is_default_rule):
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actions_json = json.dumps(actions)
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def set_push_rule_actions_txn(txn, stream_id, event_stream_ordering):
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if is_default_rule:
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# Add a dummy rule to the rules table with the user specified
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# actions.
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priority_class = -1
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priority = 1
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self._upsert_push_rule_txn(
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txn, stream_id, event_stream_ordering, user_id, rule_id,
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priority_class, priority, "[]", actions_json,
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update_stream=False
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)
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else:
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self._simple_update_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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{'actions': actions_json},
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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="ACTIONS", data={"actions": actions_json}
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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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"set_push_rule_actions", set_push_rule_actions_txn,
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stream_id, event_stream_ordering
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)
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def _insert_push_rules_update_txn(
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self, txn, stream_id, event_stream_ordering, user_id, rule_id, op, data=None
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):
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values = {
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"stream_id": stream_id,
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"event_stream_ordering": event_stream_ordering,
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"user_id": user_id,
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"rule_id": rule_id,
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"op": op,
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}
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if data is not None:
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values.update(data)
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self._simple_insert_txn(txn, "push_rules_stream", values=values)
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txn.call_after(
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self.get_push_rules_for_user.invalidate, (user_id,)
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)
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txn.call_after(
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self.get_push_rules_enabled_for_user.invalidate, (user_id,)
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)
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txn.call_after(
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self.push_rules_stream_cache.entity_has_changed, user_id, stream_id
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)
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def get_all_push_rule_updates(self, last_id, current_id, limit):
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"""Get all the push rules changes that have happend on the server"""
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def get_all_push_rule_updates_txn(txn):
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sql = (
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"SELECT stream_id, event_stream_ordering, user_id, rule_id,"
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" op, priority_class, priority, conditions, actions"
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" FROM push_rules_stream"
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" WHERE ? < stream_id AND stream_id <= ?"
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" ORDER BY stream_id ASC LIMIT ?"
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)
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txn.execute(sql, (last_id, current_id, limit))
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return txn.fetchall()
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return self.runInteraction(
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"get_all_push_rule_updates", get_all_push_rule_updates_txn
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)
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def get_push_rules_stream_token(self):
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"""Get the position of the push rules stream.
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Returns a pair of a stream id for the push_rules stream and the
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room stream ordering it corresponds to."""
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return self._push_rules_stream_id_gen.get_current_token()
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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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class RuleNotFoundException(Exception):
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pass
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class InconsistentRuleException(Exception):
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pass
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