155 lines
4.9 KiB
Python
155 lines
4.9 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 2015 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 twisted.internet import defer
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from ._base import BaseHandler
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from synapse.api.constants import Membership
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from synapse.api.filtering import Filter
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from synapse.api.errors import SynapseError
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from synapse.events.utils import serialize_event
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import logging
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logger = logging.getLogger(__name__)
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class SearchHandler(BaseHandler):
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def __init__(self, hs):
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super(SearchHandler, self).__init__(hs)
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@defer.inlineCallbacks
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def search(self, user, content):
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"""Performs a full text search for a user.
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Args:
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user (UserID)
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content (dict): Search parameters
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Returns:
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dict to be returned to the client with results of search
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"""
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try:
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search_term = content["search_categories"]["room_events"]["search_term"]
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keys = content["search_categories"]["room_events"].get("keys", [
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"content.body", "content.name", "content.topic",
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])
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filter_dict = content["search_categories"]["room_events"].get("filter", {})
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event_context = content["search_categories"]["room_events"].get(
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"event_context", None
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)
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if event_context is not None:
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before_limit = int(event_context.get(
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"before_limit", 5
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))
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after_limit = int(event_context.get(
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"after_limit", 5
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))
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except KeyError:
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raise SynapseError(400, "Invalid search query")
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search_filter = Filter(filter_dict)
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# TODO: Search through left rooms too
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rooms = yield self.store.get_rooms_for_user_where_membership_is(
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user.to_string(),
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membership_list=[Membership.JOIN],
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# membership_list=[Membership.JOIN, Membership.LEAVE, Membership.Ban],
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)
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room_ids = set(r.room_id for r in rooms)
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room_ids = search_filter.filter_rooms(room_ids)
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rank_map, event_map, _ = yield self.store.search_msgs(
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room_ids, search_term, keys
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)
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filtered_events = search_filter.filter(event_map.values())
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allowed_events = yield self._filter_events_for_client(
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user.to_string(), filtered_events
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)
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allowed_events.sort(key=lambda e: -rank_map[e.event_id])
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allowed_events = allowed_events[:search_filter.limit()]
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if event_context is not None:
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now_token = yield self.hs.get_event_sources().get_current_token()
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contexts = {}
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for event in allowed_events:
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res = yield self.store.get_events_around(
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event.room_id, event.event_id, before_limit, after_limit
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)
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res["events_before"] = yield self._filter_events_for_client(
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user.to_string(), res["events_before"]
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)
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res["events_after"] = yield self._filter_events_for_client(
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user.to_string(), res["events_after"]
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)
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res["start"] = now_token.copy_and_replace(
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"room_key", res["start"]
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).to_string()
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res["end"] = now_token.copy_and_replace(
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"room_key", res["end"]
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).to_string()
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contexts[event.event_id] = res
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else:
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contexts = {}
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# TODO: Add a limit
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time_now = self.clock.time_msec()
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for context in contexts.values():
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context["events_before"] = [
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serialize_event(e, time_now)
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for e in context["events_before"]
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]
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context["events_after"] = [
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serialize_event(e, time_now)
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for e in context["events_after"]
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]
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results = {
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e.event_id: {
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"rank": rank_map[e.event_id],
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"result": serialize_event(e, time_now),
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"context": contexts.get(e.event_id, {}),
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}
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for e in allowed_events
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}
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logger.info("Found %d results", len(results))
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defer.returnValue({
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"search_categories": {
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"room_events": {
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"results": results,
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"count": len(results)
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}
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}
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})
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