diff options
Diffstat (limited to 'synapse/push/bulk_push_rule_evaluator.py')
| -rw-r--r-- | synapse/push/bulk_push_rule_evaluator.py | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/synapse/push/bulk_push_rule_evaluator.py b/synapse/push/bulk_push_rule_evaluator.py new file mode 100644 index 0000000000..ce244fa959 --- /dev/null +++ b/synapse/push/bulk_push_rule_evaluator.py @@ -0,0 +1,124 @@ +# -*- coding: utf-8 -*- +# Copyright 2015 OpenMarket Ltd +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import logging +import simplejson as json + +from twisted.internet import defer + +from synapse.types import UserID + +import baserules +from push_rule_evaluator import PushRuleEvaluator + +from synapse.events.utils import serialize_event + +logger = logging.getLogger(__name__) + + +def decode_rule_json(rule): + rule['conditions'] = json.loads(rule['conditions']) + rule['actions'] = json.loads(rule['actions']) + return rule + + +@defer.inlineCallbacks +def evaluator_for_room_id(room_id, store): + users = yield store.get_users_in_room(room_id) + rules_by_user = yield store.bulk_get_push_rules(users) + rules_by_user = { + uid: baserules.list_with_base_rules( + [decode_rule_json(rule_list) for rule_list in rules_by_user[uid]] + if uid in rules_by_user else [], + UserID.from_string(uid), + ) + for uid in users + } + member_events = yield store.get_current_state( + room_id=room_id, + event_type='m.room.member', + ) + display_names = {} + for ev in member_events: + if ev.content.get("displayname"): + display_names[ev.state_key] = ev.content.get("displayname") + + defer.returnValue(BulkPushRuleEvaluator( + room_id, rules_by_user, display_names, users, store + )) + + +class BulkPushRuleEvaluator: + """ + Runs push rules for all users in a room. + This is faster than running PushRuleEvaluator for each user because it + fetches all the rules for all the users in one (batched) db query + rather than doing multiple queries per-user. It currently uses + the same logic to run the actual rules, but could be optimised further + (see https://matrix.org/jira/browse/SYN-562) + """ + def __init__(self, room_id, rules_by_user, display_names, users_in_room, store): + self.room_id = room_id + self.rules_by_user = rules_by_user + self.display_names = display_names + self.users_in_room = users_in_room + self.store = store + + @defer.inlineCallbacks + def action_for_event_by_user(self, event, handler): + actions_by_user = {} + + for uid, rules in self.rules_by_user.items(): + display_name = None + if uid in self.display_names: + display_name = self.display_names[uid] + + is_guest = yield self.store.is_guest(UserID.from_string(uid)) + filtered = yield handler._filter_events_for_client( + uid, [event], is_guest=is_guest + ) + if len(filtered) == 0: + continue + + for rule in rules: + if 'enabled' in rule and not rule['enabled']: + continue + + # XXX: profile tags + if BulkPushRuleEvaluator.event_matches_rule( + event, rule, + display_name, len(self.users_in_room), None + ): + actions = [x for x in rule['actions'] if x != 'dont_notify'] + if len(actions) > 0: + actions_by_user[uid] = actions + break + defer.returnValue(actions_by_user) + + @staticmethod + def event_matches_rule(event, rule, + display_name, room_member_count, profile_tag): + matches = True + + # passing the clock all the way into here is extremely awkward and push + # rules do not care about any of the relative timestamps, so we just + # pass 0 for the current time. + client_event = serialize_event(event, 0) + + for cond in rule['conditions']: + matches &= PushRuleEvaluator._event_fulfills_condition( + client_event, cond, display_name, room_member_count, profile_tag + ) + return matches |