Merge pull request #324 from matrix-org/erikj/search
Add filters to search.
This commit is contained in:
commit
53c679b59b
5 changed files with 63 additions and 18 deletions
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@ -202,6 +202,26 @@ class Filter(object):
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return True
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def filter_rooms(self, room_ids):
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"""Apply the 'rooms' filter to a given list of rooms.
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Args:
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room_ids (list): A list of room_ids.
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Returns:
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list: A list of room_ids that match the filter
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"""
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room_ids = set(room_ids)
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disallowed_rooms = set(self.filter_json.get("not_rooms", []))
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room_ids -= disallowed_rooms
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allowed_rooms = self.filter_json.get("rooms", None)
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if allowed_rooms is not None:
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room_ids &= set(allowed_rooms)
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return room_ids
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def filter(self, events):
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return filter(self.check, events)
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@ -18,6 +18,7 @@ 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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@ -49,9 +50,12 @@ class SearchHandler(BaseHandler):
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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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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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@ -60,15 +64,18 @@ class SearchHandler(BaseHandler):
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)
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room_ids = set(r.room_id for r in rooms)
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# TODO: Apply room filter to rooms list
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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(room_ids, search_term, keys)
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allowed_events = yield self._filter_events_for_client(
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user.to_string(), event_map.values()
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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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# TODO: Filter allowed_events
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# TODO: Add a limit
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time_now = self.clock.time_msec()
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@ -25,7 +25,7 @@ logger = logging.getLogger(__name__)
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# Remember to update this number every time a change is made to database
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# schema files, so the users will be informed on server restarts.
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SCHEMA_VERSION = 24
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SCHEMA_VERSION = 25
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dir_path = os.path.abspath(os.path.dirname(__file__))
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@ -23,7 +23,7 @@ logger = logging.getLogger(__name__)
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POSTGRES_SQL = """
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CREATE TABLE event_search (
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CREATE TABLE IF NOT EXISTS event_search (
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event_id TEXT,
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room_id TEXT,
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key TEXT,
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@ -53,7 +53,8 @@ CREATE INDEX event_search_ev_ridx ON event_search(room_id);
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SQLITE_TABLE = (
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"CREATE VIRTUAL TABLE event_search USING fts3 ( event_id, room_id, key, value)"
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"CREATE VIRTUAL TABLE IF NOT EXISTS event_search"
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" USING fts3 ( event_id, room_id, key, value)"
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)
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@ -18,6 +18,17 @@ from twisted.internet import defer
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from _base import SQLBaseStore
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from synapse.storage.engines import PostgresEngine, Sqlite3Engine
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from collections import namedtuple
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"""The result of a search.
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Fields:
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rank_map (dict): Mapping event_id -> rank
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event_map (dict): Mapping event_id -> event
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pagination_token (str): Pagination token
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"""
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SearchResult = namedtuple("SearchResult", ("rank_map", "event_map", "pagination_token"))
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class SearchStore(SQLBaseStore):
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@defer.inlineCallbacks
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@ -31,11 +42,14 @@ class SearchStore(SQLBaseStore):
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"content.body", "content.name", "content.topic"
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Returns:
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2-tuple of (dict event_id -> rank, dict event_id -> event)
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SearchResult
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"""
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clauses = []
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args = []
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# Make sure we don't explode because the person is in too many rooms.
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# We filter the results below regardless.
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if len(room_ids) < 500:
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clauses.append(
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"room_id IN (%s)" % (",".join(["?"] * len(room_ids)),)
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)
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@ -52,13 +66,13 @@ class SearchStore(SQLBaseStore):
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if isinstance(self.database_engine, PostgresEngine):
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sql = (
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"SELECT ts_rank_cd(vector, query) AS rank, event_id"
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"SELECT ts_rank_cd(vector, query) AS rank, room_id, event_id"
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" FROM plainto_tsquery('english', ?) as query, event_search"
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" WHERE vector @@ query"
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)
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elif isinstance(self.database_engine, Sqlite3Engine):
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sql = (
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"SELECT 0 as rank, event_id FROM event_search"
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"SELECT 0 as rank, room_id, event_id FROM event_search"
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" WHERE value MATCH ?"
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)
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else:
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@ -76,6 +90,8 @@ class SearchStore(SQLBaseStore):
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"search_msgs", self.cursor_to_dict, sql, *([search_term] + args)
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)
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results = filter(lambda row: row["room_id"] in room_ids, results)
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events = yield self._get_events([r["event_id"] for r in results])
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event_map = {
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@ -83,11 +99,12 @@ class SearchStore(SQLBaseStore):
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for ev in events
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}
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defer.returnValue((
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defer.returnValue(SearchResult(
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{
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r["event_id"]: r["rank"]
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for r in results
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if r["event_id"] in event_map
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},
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event_map
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event_map,
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None
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))
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