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path: root/synapse/push/action_generator.py
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# -*- coding: utf-8 -*-
# Copyright 2015 OpenMarket Ltd
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

from twisted.internet import defer

import push_rule_evaluator

import logging

logger = logging.getLogger(__name__)


class ActionGenerator:
    def __init__(self, store):
        self.store = store
        # really we want to get all user ids and all profile tags too,
        # since we want the actions for each profile tag for every user and
        # also actions for a client with no profile tag for each user.
        # Currently the event stream doesn't support profile tags on an
        # event stream, so we just run the rules for a client with no profile
        # tag (ie. we just need all the users).

    @defer.inlineCallbacks
    def handle_event(self, event):
        users = yield self.store.get_users_in_room(event['room_id'])

        for uid in users:
            evaluator = yield push_rule_evaluator.\
                evaluator_for_user_name_and_profile_tag(
                    uid, None, event['room_id'], self.store
                )
            actions = yield evaluator.actions_for_event(event)
            logger.info("actions for user %s: %s", uid, actions)
            if len(actions):
                self.store.set_actions_for_event(
                    event['event_id'], uid, None, actions
                )