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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
from ._base import BaseHandler
from synapse.api.constants import (
EventTypes, Membership,
)
from synapse.api.errors import SynapseError
from synapse.events.utils import serialize_event
import logging
logger = logging.getLogger(__name__)
class SearchHandler(BaseHandler):
def __init__(self, hs):
super(SearchHandler, self).__init__(hs)
@defer.inlineCallbacks
def _filter_events_for_client(self, user_id, events):
event_id_to_state = yield self.store.get_state_for_events(
frozenset(e.event_id for e in events),
types=(
(EventTypes.RoomHistoryVisibility, ""),
(EventTypes.Member, user_id),
)
)
def allowed(event, state):
if event.type == EventTypes.RoomHistoryVisibility:
return True
membership_ev = state.get((EventTypes.Member, user_id), None)
if membership_ev:
membership = membership_ev.membership
else:
membership = Membership.LEAVE
if membership == Membership.JOIN:
return True
history = state.get((EventTypes.RoomHistoryVisibility, ''), None)
if history:
visibility = history.content.get("history_visibility", "shared")
else:
visibility = "shared"
if visibility == "public":
return True
elif visibility == "shared":
return True
elif visibility == "joined":
return membership == Membership.JOIN
elif visibility == "invited":
return membership == Membership.INVITE
return True
defer.returnValue([
event
for event in events
if allowed(event, event_id_to_state[event.event_id])
])
@defer.inlineCallbacks
def search(self, user, content):
try:
search_term = content["search_categories"]["room_events"]["search_term"]
keys = content["search_categories"]["room_events"]["keys"]
except KeyError:
raise SynapseError(400, "Invalid search query")
# TODO: Search through left rooms too
rooms = yield self.store.get_rooms_for_user_where_membership_is(
user.to_string(),
membership_list=[Membership.JOIN],
# membership_list=[Membership.JOIN, Membership.LEAVE, Membership.Ban],
)
room_ids = set(r.room_id for r in rooms)
# TODO: Apply room filter to rooms list
rank_map, event_map = yield self.store.search_msgs(room_ids, search_term, keys)
allowed_events = yield self._filter_events_for_client(
user.to_string(), event_map.values()
)
# TODO: Filter allowed_events
# TODO: Add a limit
time_now = self.clock.time_msec()
results = {
e.event_id: {
"rank": rank_map[e.event_id],
"result": serialize_event(e, time_now)
}
for e in allowed_events
}
logger.info("Found %d results", len(results))
defer.returnValue({
"search_categories": {
"room_events": {
"results": results,
"count": len(results)
}
}
})
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