MatrixSynapse/synapse/storage/user_directory.py

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# -*- coding: utf-8 -*-
# Copyright 2017 Vector Creations 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.
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import logging
import re
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from six import iteritems
from twisted.internet import defer
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from synapse.api.constants import EventTypes, JoinRules
from synapse.storage.engines import PostgresEngine, Sqlite3Engine
from synapse.storage.state import StateFilter
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from synapse.types import get_domain_from_id, get_localpart_from_id
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from synapse.util.caches.descriptors import cached, cachedInlineCallbacks
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from ._base import SQLBaseStore
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logger = logging.getLogger(__name__)
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class UserDirectoryStore(SQLBaseStore):
@defer.inlineCallbacks
def is_room_world_readable_or_publicly_joinable(self, room_id):
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"""Check if the room is either world_readable or publically joinable
"""
# Create a state filter that only queries join and history state event
types_to_filter = (
(EventTypes.JoinRules, ""),
(EventTypes.RoomHistoryVisibility, ""),
)
current_state_ids = yield self.get_filtered_current_state_ids(
room_id, StateFilter.from_types(types_to_filter)
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)
join_rules_id = current_state_ids.get((EventTypes.JoinRules, ""))
if join_rules_id:
join_rule_ev = yield self.get_event(join_rules_id, allow_none=True)
if join_rule_ev:
if join_rule_ev.content.get("join_rule") == JoinRules.PUBLIC:
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defer.returnValue(True)
hist_vis_id = current_state_ids.get((EventTypes.RoomHistoryVisibility, ""))
if hist_vis_id:
hist_vis_ev = yield self.get_event(hist_vis_id, allow_none=True)
if hist_vis_ev:
if hist_vis_ev.content.get("history_visibility") == "world_readable":
defer.returnValue(True)
defer.returnValue(False)
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def add_profiles_to_user_dir(self, users_with_profile):
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"""Add profiles to the user directory
Args:
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users_with_profile (dict): Users to add to directory in the form of
mapping of user_id -> ProfileInfo
"""
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if isinstance(self.database_engine, PostgresEngine):
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# We weight the loclpart most highly, then display name and finally
# server name
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sql = """
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INSERT INTO user_directory_search(user_id, vector)
VALUES (?,
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setweight(to_tsvector('english', ?), 'A')
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|| setweight(to_tsvector('english', ?), 'D')
|| setweight(to_tsvector('english', COALESCE(?, '')), 'B')
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)
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"""
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args = (
(
user_id,
get_localpart_from_id(user_id),
get_domain_from_id(user_id),
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profile.display_name,
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)
for user_id, profile in iteritems(users_with_profile)
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)
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elif isinstance(self.database_engine, Sqlite3Engine):
sql = """
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INSERT INTO user_directory_search(user_id, value)
VALUES (?,?)
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"""
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args = tuple(
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(
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user_id,
"%s %s" % (user_id, p.display_name) if p.display_name else user_id,
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)
for user_id, p in iteritems(users_with_profile)
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)
else:
# This should be unreachable.
raise Exception("Unrecognized database engine")
def _add_profiles_to_user_dir_txn(txn):
txn.executemany(sql, args)
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self._simple_insert_many_txn(
txn,
table="user_directory",
values=[
{
"user_id": user_id,
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"room_id": None,
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"display_name": profile.display_name,
"avatar_url": profile.avatar_url,
}
for user_id, profile in iteritems(users_with_profile)
],
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)
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for user_id in users_with_profile:
txn.call_after(self.get_user_in_directory.invalidate, (user_id,))
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return self.runInteraction(
"add_profiles_to_user_dir", _add_profiles_to_user_dir_txn
)
@defer.inlineCallbacks
def update_user_in_user_dir(self, user_id, room_id):
yield self._simple_update_one(
table="user_directory",
keyvalues={"user_id": user_id},
updatevalues={"room_id": room_id},
desc="update_user_in_user_dir",
)
self.get_user_in_directory.invalidate((user_id,))
def update_profile_in_user_dir(self, user_id, display_name, avatar_url, room_id):
def _update_profile_in_user_dir_txn(txn):
new_entry = self._simple_upsert_txn(
txn,
table="user_directory",
keyvalues={"user_id": user_id},
insertion_values={"room_id": room_id},
values={"display_name": display_name, "avatar_url": avatar_url},
lock=False, # We're only inserter
)
if isinstance(self.database_engine, PostgresEngine):
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# We weight the localpart most highly, then display name and finally
# server name
if self.database_engine.can_native_upsert:
sql = """
INSERT INTO user_directory_search(user_id, vector)
VALUES (?,
setweight(to_tsvector('english', ?), 'A')
|| setweight(to_tsvector('english', ?), 'D')
|| setweight(to_tsvector('english', COALESCE(?, '')), 'B')
) ON CONFLICT (user_id) DO UPDATE SET vector=EXCLUDED.vector
"""
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txn.execute(
sql,
(
user_id,
get_localpart_from_id(user_id),
get_domain_from_id(user_id),
display_name,
),
)
else:
# TODO: Remove this code after we've bumped the minimum version
# of postgres to always support upserts, so we can get rid of
# `new_entry` usage
if new_entry is True:
sql = """
INSERT INTO user_directory_search(user_id, vector)
VALUES (?,
setweight(to_tsvector('english', ?), 'A')
|| setweight(to_tsvector('english', ?), 'D')
|| setweight(to_tsvector('english', COALESCE(?, '')), 'B')
)
"""
txn.execute(
sql,
(
user_id,
get_localpart_from_id(user_id),
get_domain_from_id(user_id),
display_name,
),
)
elif new_entry is False:
sql = """
UPDATE user_directory_search
SET vector = setweight(to_tsvector('english', ?), 'A')
|| setweight(to_tsvector('english', ?), 'D')
|| setweight(to_tsvector('english', COALESCE(?, '')), 'B')
WHERE user_id = ?
"""
txn.execute(
sql,
(
get_localpart_from_id(user_id),
get_domain_from_id(user_id),
display_name,
user_id,
),
)
else:
raise RuntimeError(
"upsert returned None when 'can_native_upsert' is False"
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)
elif isinstance(self.database_engine, Sqlite3Engine):
value = "%s %s" % (user_id, display_name) if display_name else user_id
self._simple_upsert_txn(
txn,
table="user_directory_search",
keyvalues={"user_id": user_id},
values={"value": value},
lock=False, # We're only inserter
)
else:
# This should be unreachable.
raise Exception("Unrecognized database engine")
txn.call_after(self.get_user_in_directory.invalidate, (user_id,))
return self.runInteraction(
"update_profile_in_user_dir", _update_profile_in_user_dir_txn
)
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def remove_from_user_dir(self, user_id):
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def _remove_from_user_dir_txn(txn):
self._simple_delete_txn(
txn, table="user_directory", keyvalues={"user_id": user_id}
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)
self._simple_delete_txn(
txn, table="user_directory_search", keyvalues={"user_id": user_id}
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)
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self._simple_delete_txn(
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txn,
table="users_who_share_public_rooms",
keyvalues={"user_id": user_id},
)
self._simple_delete_txn(
txn,
table="users_who_share_public_rooms",
keyvalues={"other_user_id": user_id},
)
self._simple_delete_txn(
txn,
table="users_who_share_private_rooms",
keyvalues={"user_id": user_id},
)
self._simple_delete_txn(
txn,
table="users_who_share_private_rooms",
keyvalues={"other_user_id": user_id},
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)
txn.call_after(self.get_user_in_directory.invalidate, (user_id,))
return self.runInteraction("remove_from_user_dir", _remove_from_user_dir_txn)
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@defer.inlineCallbacks
def get_users_in_dir_due_to_room(self, room_id):
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"""Get all user_ids that are in the room directory because they're
in the given room_id
"""
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user_ids_share_pub = yield self._simple_select_onecol(
table="users_who_share_public_rooms",
keyvalues={"room_id": room_id},
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retcol="other_user_id",
desc="get_users_in_dir_due_to_room",
)
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user_ids_share_priv = yield self._simple_select_onecol(
table="users_who_share_private_rooms",
keyvalues={"room_id": room_id},
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retcol="other_user_id",
desc="get_users_in_dir_due_to_room",
)
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user_ids = set(user_ids_share_pub)
user_ids.update(user_ids_share_priv)
defer.returnValue(user_ids)
@defer.inlineCallbacks
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def get_all_rooms(self):
"""Get all room_ids we've ever known about, in ascending order of "size"
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"""
sql = """
SELECT room_id FROM current_state_events
GROUP BY room_id
ORDER BY count(*) ASC
"""
rows = yield self._execute("get_all_rooms", None, sql)
defer.returnValue([room_id for room_id, in rows])
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@defer.inlineCallbacks
def get_all_local_users(self):
"""Get all local users
"""
sql = """
SELECT name FROM users
"""
rows = yield self._execute("get_all_local_users", None, sql)
defer.returnValue([name for name, in rows])
def add_users_who_share_room(self, room_id, share_private, user_id_tuples):
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"""Insert entries into the users_who_share_*_rooms table. The first
user should be a local user.
Args:
room_id (str)
share_private (bool): Is the room private
user_id_tuples([(str, str)]): iterable of 2-tuple of user IDs.
"""
def _add_users_who_share_room_txn(txn):
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if share_private:
tbl = "users_who_share_private_rooms"
else:
tbl = "users_who_share_public_rooms"
self._simple_upsert_many_txn(
txn,
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table=tbl,
key_names=["user_id", "other_user_id", "room_id"],
key_values=[
(user_id, other_user_id, room_id)
for user_id, other_user_id in user_id_tuples
],
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value_names=(),
value_values=None,
)
for user_id, other_user_id in user_id_tuples:
txn.call_after(
self.get_users_who_share_room_from_dir.invalidate, (user_id,)
)
return self.runInteraction(
"add_users_who_share_room", _add_users_who_share_room_txn
)
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def remove_user_who_share_room(self, user_id, room_id):
"""
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Deletes entries in the users_who_share_*_rooms table. The first
user should be a local user.
Args:
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user_id (str)
room_id (str)
"""
def _remove_user_who_share_room_txn(txn):
self._simple_delete_txn(
txn,
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table="users_who_share_private_rooms",
keyvalues={"user_id": user_id, "room_id": room_id},
)
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self._simple_delete_txn(
txn,
table="users_who_share_private_rooms",
keyvalues={"other_user_id": user_id, "room_id": room_id},
)
self._simple_delete_txn(
txn,
table="users_who_share_public_rooms",
keyvalues={"user_id": user_id, "room_id": room_id},
)
self._simple_delete_txn(
txn,
table="users_who_share_public_rooms",
keyvalues={"other_user_id": user_id, "room_id": room_id},
)
txn.call_after(
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self.get_users_who_share_room_from_dir.invalidate, (user_id,)
)
return self.runInteraction(
"remove_user_who_share_room", _remove_user_who_share_room_txn
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)
@cachedInlineCallbacks(max_entries=500000, iterable=True)
def get_users_who_share_room_from_dir(self, user_id):
"""Returns the set of users who share a room with `user_id`
Args:
user_id(str): Must be a local user
Returns:
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list: user_id
"""
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rows = yield self._simple_select_onecol(
table="users_who_share_private_rooms",
keyvalues={"user_id": user_id},
retcol="other_user_id",
desc="get_users_who_share_room_with_user",
)
pub_rows = yield self._simple_select_onecol(
table="users_who_share_public_rooms",
keyvalues={"user_id": user_id},
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retcol="other_user_id",
desc="get_users_who_share_room_with_user",
)
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users = set(pub_rows)
users.update(rows)
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# Remove the user themselves from this list.
users.discard(user_id)
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defer.returnValue(list(users))
@defer.inlineCallbacks
def get_rooms_in_common_for_users(self, user_id, other_user_id):
"""Given two user_ids find out the list of rooms they share.
"""
sql = """
SELECT room_id FROM (
SELECT c.room_id FROM current_state_events AS c
INNER JOIN room_memberships USING (event_id)
WHERE type = 'm.room.member'
AND membership = 'join'
AND state_key = ?
) AS f1 INNER JOIN (
SELECT c.room_id FROM current_state_events AS c
INNER JOIN room_memberships USING (event_id)
WHERE type = 'm.room.member'
AND membership = 'join'
AND state_key = ?
) f2 USING (room_id)
"""
rows = yield self._execute(
"get_rooms_in_common_for_users", None, sql, user_id, other_user_id
)
defer.returnValue([room_id for room_id, in rows])
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def delete_all_from_user_dir(self):
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"""Delete the entire user directory
"""
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def _delete_all_from_user_dir_txn(txn):
txn.execute("DELETE FROM user_directory")
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txn.execute("DELETE FROM user_directory_search")
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txn.execute("DELETE FROM users_who_share_public_rooms")
txn.execute("DELETE FROM users_who_share_private_rooms")
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txn.call_after(self.get_user_in_directory.invalidate_all)
txn.call_after(self.get_users_who_share_room_from_dir.invalidate_all)
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return self.runInteraction(
"delete_all_from_user_dir", _delete_all_from_user_dir_txn
)
@cached()
def get_user_in_directory(self, user_id):
return self._simple_select_one(
table="user_directory",
keyvalues={"user_id": user_id},
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retcols=("display_name", "avatar_url"),
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allow_none=True,
desc="get_user_in_directory",
)
def get_user_directory_stream_pos(self):
return self._simple_select_one_onecol(
table="user_directory_stream_pos",
keyvalues={},
retcol="stream_id",
desc="get_user_directory_stream_pos",
)
def update_user_directory_stream_pos(self, stream_id):
return self._simple_update_one(
table="user_directory_stream_pos",
keyvalues={},
updatevalues={"stream_id": stream_id},
desc="update_user_directory_stream_pos",
)
def get_current_state_deltas(self, prev_stream_id):
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prev_stream_id = int(prev_stream_id)
if not self._curr_state_delta_stream_cache.has_any_entity_changed(
prev_stream_id
):
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return []
def get_current_state_deltas_txn(txn):
# First we calculate the max stream id that will give us less than
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# N results.
# We arbitarily limit to 100 stream_id entries to ensure we don't
# select toooo many.
sql = """
SELECT stream_id, count(*)
FROM current_state_delta_stream
WHERE stream_id > ?
GROUP BY stream_id
ORDER BY stream_id ASC
LIMIT 100
"""
txn.execute(sql, (prev_stream_id,))
total = 0
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max_stream_id = prev_stream_id
for max_stream_id, count in txn:
total += count
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if total > 100:
# We arbitarily limit to 100 entries to ensure we don't
# select toooo many.
break
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# Now actually get the deltas
sql = """
SELECT stream_id, room_id, type, state_key, event_id, prev_event_id
FROM current_state_delta_stream
WHERE ? < stream_id AND stream_id <= ?
ORDER BY stream_id ASC
"""
txn.execute(sql, (prev_stream_id, max_stream_id))
return self.cursor_to_dict(txn)
return self.runInteraction(
"get_current_state_deltas", get_current_state_deltas_txn
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)
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def get_max_stream_id_in_current_state_deltas(self):
return self._simple_select_one_onecol(
table="current_state_delta_stream",
keyvalues={},
retcol="COALESCE(MAX(stream_id), -1)",
desc="get_max_stream_id_in_current_state_deltas",
)
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@defer.inlineCallbacks
def search_user_dir(self, user_id, search_term, limit):
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"""Searches for users in directory
Returns:
dict of the form::
{
"limited": <bool>, # whether there were more results or not
"results": [ # Ordered by best match first
{
"user_id": <user_id>,
"display_name": <display_name>,
"avatar_url": <avatar_url>
}
]
}
"""
if self.hs.config.user_directory_search_all_users:
# make s.user_id null to keep the ordering algorithm happy
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join_clause = """
CROSS JOIN (SELECT NULL as user_id) AS s
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"""
join_args = ()
where_clause = "1=1"
else:
join_clause = """
LEFT JOIN (
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SELECT other_user_id AS user_id FROM users_who_share_public_rooms
UNION
SELECT other_user_id AS user_id FROM users_who_share_private_rooms
WHERE user_id = ?
) AS p USING (user_id)
"""
join_args = (user_id,)
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where_clause = "p.user_id IS NOT NULL"
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if isinstance(self.database_engine, PostgresEngine):
full_query, exact_query, prefix_query = _parse_query_postgres(search_term)
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# We order by rank and then if they have profile info
# The ranking algorithm is hand tweaked for "best" results. Broadly
# the idea is we give a higher weight to exact matches.
# The array of numbers are the weights for the various part of the
# search: (domain, _, display name, localpart)
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sql = """
SELECT d.user_id AS user_id, display_name, avatar_url
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FROM user_directory_search
INNER JOIN user_directory AS d USING (user_id)
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%s
WHERE
%s
AND vector @@ to_tsquery('english', ?)
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ORDER BY
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(CASE WHEN d.user_id IS NOT NULL THEN 4.0 ELSE 1.0 END)
* (CASE WHEN display_name IS NOT NULL THEN 1.2 ELSE 1.0 END)
* (CASE WHEN avatar_url IS NOT NULL THEN 1.2 ELSE 1.0 END)
* (
3 * ts_rank_cd(
'{0.1, 0.1, 0.9, 1.0}',
vector,
to_tsquery('english', ?),
8
)
+ ts_rank_cd(
'{0.1, 0.1, 0.9, 1.0}',
vector,
to_tsquery('english', ?),
8
)
)
DESC,
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display_name IS NULL,
avatar_url IS NULL
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LIMIT ?
""" % (
join_clause,
where_clause,
)
args = join_args + (full_query, exact_query, prefix_query, limit + 1)
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elif isinstance(self.database_engine, Sqlite3Engine):
search_query = _parse_query_sqlite(search_term)
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sql = """
SELECT d.user_id AS user_id, display_name, avatar_url
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FROM user_directory_search
INNER JOIN user_directory AS d USING (user_id)
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%s
WHERE
%s
AND value MATCH ?
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ORDER BY
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rank(matchinfo(user_directory_search)) DESC,
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display_name IS NULL,
avatar_url IS NULL
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LIMIT ?
""" % (
join_clause,
where_clause,
)
args = join_args + (search_query, limit + 1)
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else:
# This should be unreachable.
raise Exception("Unrecognized database engine")
results = yield self._execute(
"search_user_dir", self.cursor_to_dict, sql, *args
)
limited = len(results) > limit
defer.returnValue({"limited": limited, "results": results})
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def _parse_query_sqlite(search_term):
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"""Takes a plain unicode string from the user and converts it into a form
that can be passed to database.
We use this so that we can add prefix matching, which isn't something
that is supported by default.
We specifically add both a prefix and non prefix matching term so that
exact matches get ranked higher.
"""
# Pull out the individual words, discarding any non-word characters.
results = re.findall(r"([\w\-]+)", search_term, re.UNICODE)
return " & ".join("(%s* OR %s)" % (result, result) for result in results)
def _parse_query_postgres(search_term):
"""Takes a plain unicode string from the user and converts it into a form
that can be passed to database.
We use this so that we can add prefix matching, which isn't something
that is supported by default.
"""
# Pull out the individual words, discarding any non-word characters.
results = re.findall(r"([\w\-]+)", search_term, re.UNICODE)
both = " & ".join("(%s:* | %s)" % (result, result) for result in results)
exact = " & ".join("%s" % (result,) for result in results)
prefix = " & ".join("%s:*" % (result,) for result in results)
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return both, exact, prefix