forked-synapse/synapse/storage/user_directory.py
2017-12-04 15:11:38 +00:00

760 lines
28 KiB
Python

# -*- 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.
from twisted.internet import defer
from ._base import SQLBaseStore
from synapse.util.caches.descriptors import cached, cachedInlineCallbacks
from synapse.api.constants import EventTypes, JoinRules
from synapse.storage.engines import PostgresEngine, Sqlite3Engine
from synapse.types import get_domain_from_id, get_localpart_from_id
import re
import logging
logger = logging.getLogger(__name__)
class UserDirectoryStore(SQLBaseStore):
@cachedInlineCallbacks(cache_context=True)
def is_room_world_readable_or_publicly_joinable(self, room_id, cache_context):
"""Check if the room is either world_readable or publically joinable
"""
current_state_ids = yield self.get_current_state_ids(
room_id, on_invalidate=cache_context.invalidate
)
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:
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)
@defer.inlineCallbacks
def add_users_to_public_room(self, room_id, user_ids):
"""Add user to the list of users in public rooms
Args:
room_id (str): A room_id that all users are in that is world_readable
or publically joinable
user_ids (list(str)): Users to add
"""
yield self._simple_insert_many(
table="users_in_public_rooms",
values=[
{
"user_id": user_id,
"room_id": room_id,
}
for user_id in user_ids
],
desc="add_users_to_public_room"
)
for user_id in user_ids:
self.get_user_in_public_room.invalidate((user_id,))
def add_profiles_to_user_dir(self, room_id, users_with_profile):
"""Add profiles to the user directory
Args:
room_id (str): A room_id that all users are joined to
users_with_profile (dict): Users to add to directory in the form of
mapping of user_id -> ProfileInfo
"""
if isinstance(self.database_engine, PostgresEngine):
# We weight the loclpart most highly, then display name and finally
# server name
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')
)
"""
args = (
(
user_id, get_localpart_from_id(user_id), get_domain_from_id(user_id),
profile.display_name,
)
for user_id, profile in users_with_profile.iteritems()
)
elif isinstance(self.database_engine, Sqlite3Engine):
sql = """
INSERT INTO user_directory_search(user_id, value)
VALUES (?,?)
"""
args = (
(
user_id,
"%s %s" % (user_id, p.display_name,) if p.display_name else user_id
)
for user_id, p in users_with_profile.iteritems()
)
else:
# This should be unreachable.
raise Exception("Unrecognized database engine")
def _add_profiles_to_user_dir_txn(txn):
txn.executemany(sql, args)
self._simple_insert_many_txn(
txn,
table="user_directory",
values=[
{
"user_id": user_id,
"room_id": room_id,
"display_name": profile.display_name,
"avatar_url": profile.avatar_url,
}
for user_id, profile in users_with_profile.iteritems()
]
)
for user_id in users_with_profile:
txn.call_after(
self.get_user_in_directory.invalidate, (user_id,)
)
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):
# We weight the localpart most highly, then display name and finally
# server name
if new_entry:
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,
)
)
else:
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,
)
)
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
)
@defer.inlineCallbacks
def update_user_in_public_user_list(self, user_id, room_id):
yield self._simple_update_one(
table="users_in_public_rooms",
keyvalues={"user_id": user_id},
updatevalues={"room_id": room_id},
desc="update_user_in_public_user_list",
)
self.get_user_in_public_room.invalidate((user_id,))
def remove_from_user_dir(self, user_id):
def _remove_from_user_dir_txn(txn):
self._simple_delete_txn(
txn,
table="user_directory",
keyvalues={"user_id": user_id},
)
self._simple_delete_txn(
txn,
table="user_directory_search",
keyvalues={"user_id": user_id},
)
self._simple_delete_txn(
txn,
table="users_in_public_rooms",
keyvalues={"user_id": user_id},
)
txn.call_after(
self.get_user_in_directory.invalidate, (user_id,)
)
txn.call_after(
self.get_user_in_public_room.invalidate, (user_id,)
)
return self.runInteraction(
"remove_from_user_dir", _remove_from_user_dir_txn,
)
@defer.inlineCallbacks
def remove_from_user_in_public_room(self, user_id):
yield self._simple_delete(
table="users_in_public_rooms",
keyvalues={"user_id": user_id},
desc="remove_from_user_in_public_room",
)
self.get_user_in_public_room.invalidate((user_id,))
def get_users_in_public_due_to_room(self, room_id):
"""Get all user_ids that are in the room directory becuase they're
in the given room_id
"""
return self._simple_select_onecol(
table="users_in_public_rooms",
keyvalues={"room_id": room_id},
retcol="user_id",
desc="get_users_in_public_due_to_room",
)
@defer.inlineCallbacks
def get_users_in_dir_due_to_room(self, room_id):
"""Get all user_ids that are in the room directory becuase they're
in the given room_id
"""
user_ids_dir = yield self._simple_select_onecol(
table="user_directory",
keyvalues={"room_id": room_id},
retcol="user_id",
desc="get_users_in_dir_due_to_room",
)
user_ids_pub = yield self._simple_select_onecol(
table="users_in_public_rooms",
keyvalues={"room_id": room_id},
retcol="user_id",
desc="get_users_in_dir_due_to_room",
)
user_ids_share = yield self._simple_select_onecol(
table="users_who_share_rooms",
keyvalues={"room_id": room_id},
retcol="user_id",
desc="get_users_in_dir_due_to_room",
)
user_ids = set(user_ids_dir)
user_ids.update(user_ids_pub)
user_ids.update(user_ids_share)
defer.returnValue(user_ids)
@defer.inlineCallbacks
def get_all_rooms(self):
"""Get all room_ids we've ever known about, in ascending order of "size"
"""
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])
@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):
"""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):
self._simple_insert_many_txn(
txn,
table="users_who_share_rooms",
values=[
{
"user_id": user_id,
"other_user_id": other_user_id,
"room_id": room_id,
"share_private": share_private,
}
for user_id, other_user_id in user_id_tuples
],
)
for user_id, other_user_id in user_id_tuples:
txn.call_after(
self.get_users_who_share_room_from_dir.invalidate,
(user_id,),
)
txn.call_after(
self.get_if_users_share_a_room.invalidate,
(user_id, other_user_id),
)
return self.runInteraction(
"add_users_who_share_room", _add_users_who_share_room_txn
)
def update_users_who_share_room(self, room_id, share_private, user_id_sets):
"""Updates entries in 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 _update_users_who_share_room_txn(txn):
sql = """
UPDATE users_who_share_rooms
SET room_id = ?, share_private = ?
WHERE user_id = ? AND other_user_id = ?
"""
txn.executemany(
sql,
(
(room_id, share_private, uid, oid)
for uid, oid in user_id_sets
)
)
for user_id, other_user_id in user_id_sets:
txn.call_after(
self.get_users_who_share_room_from_dir.invalidate,
(user_id,),
)
txn.call_after(
self.get_if_users_share_a_room.invalidate,
(user_id, other_user_id),
)
return self.runInteraction(
"update_users_who_share_room", _update_users_who_share_room_txn
)
def remove_user_who_share_room(self, user_id, other_user_id):
"""Deletes entries in 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 _remove_user_who_share_room_txn(txn):
self._simple_delete_txn(
txn,
table="users_who_share_rooms",
keyvalues={
"user_id": user_id,
"other_user_id": other_user_id,
},
)
txn.call_after(
self.get_users_who_share_room_from_dir.invalidate,
(user_id,),
)
txn.call_after(
self.get_if_users_share_a_room.invalidate,
(user_id, other_user_id),
)
return self.runInteraction(
"remove_user_who_share_room", _remove_user_who_share_room_txn
)
@cached(max_entries=500000)
def get_if_users_share_a_room(self, user_id, other_user_id):
"""Gets if users share a room.
Args:
user_id (str): Must be a local user_id
other_user_id (str)
Returns:
bool|None: None if they don't share a room, otherwise whether they
share a private room or not.
"""
return self._simple_select_one_onecol(
table="users_who_share_rooms",
keyvalues={
"user_id": user_id,
"other_user_id": other_user_id,
},
retcol="share_private",
allow_none=True,
desc="get_if_users_share_a_room",
)
@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:
dict: user_id -> share_private mapping
"""
rows = yield self._simple_select_list(
table="users_who_share_rooms",
keyvalues={
"user_id": user_id,
},
retcols=("other_user_id", "share_private",),
desc="get_users_who_share_room_with_user",
)
defer.returnValue({
row["other_user_id"]: row["share_private"]
for row in rows
})
def get_users_in_share_dir_with_room_id(self, user_id, room_id):
"""Get all user tuples that are in the users_who_share_rooms due to the
given room_id.
Returns:
[(user_id, other_user_id)]: where one of the two will match the given
user_id.
"""
sql = """
SELECT user_id, other_user_id FROM users_who_share_rooms
WHERE room_id = ? AND (user_id = ? OR other_user_id = ?)
"""
return self._execute(
"get_users_in_share_dir_with_room_id", None, sql, room_id, user_id, user_id
)
@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])
def delete_all_from_user_dir(self):
"""Delete the entire user directory
"""
def _delete_all_from_user_dir_txn(txn):
txn.execute("DELETE FROM user_directory")
txn.execute("DELETE FROM user_directory_search")
txn.execute("DELETE FROM users_in_public_rooms")
txn.execute("DELETE FROM users_who_share_rooms")
txn.call_after(self.get_user_in_directory.invalidate_all)
txn.call_after(self.get_user_in_public_room.invalidate_all)
txn.call_after(self.get_users_who_share_room_from_dir.invalidate_all)
txn.call_after(self.get_if_users_share_a_room.invalidate_all)
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},
retcols=("room_id", "display_name", "avatar_url",),
allow_none=True,
desc="get_user_in_directory",
)
@cached()
def get_user_in_public_room(self, user_id):
return self._simple_select_one(
table="users_in_public_rooms",
keyvalues={"user_id": user_id},
retcols=("room_id",),
allow_none=True,
desc="get_user_in_public_room",
)
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):
prev_stream_id = int(prev_stream_id)
if not self._curr_state_delta_stream_cache.has_any_entity_changed(prev_stream_id):
return []
def get_current_state_deltas_txn(txn):
# First we calculate the max stream id that will give us less than
# 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
max_stream_id = prev_stream_id
for max_stream_id, count in txn:
total += count
if total > 100:
# We arbitarily limit to 100 entries to ensure we don't
# select toooo many.
break
# 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
)
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",
)
@defer.inlineCallbacks
def search_user_dir(self, user_id, search_term, limit):
"""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:
join_clause = ""
where_clause = "?<>''" # naughty hack to keep the same number of binds
else:
join_clause = """
LEFT JOIN users_in_public_rooms AS p USING (user_id)
LEFT JOIN (
SELECT other_user_id AS user_id FROM users_who_share_rooms
WHERE user_id = ? AND share_private
) AS s USING (user_id)
"""
where_clause = "(s.user_id IS NOT NULL OR p.user_id IS NOT NULL)"
if isinstance(self.database_engine, PostgresEngine):
full_query, exact_query, prefix_query = _parse_query_postgres(search_term)
# 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)
sql = """
SELECT d.user_id, display_name, avatar_url
FROM user_directory_search
INNER JOIN user_directory AS d USING (user_id)
%s
WHERE
%s
AND vector @@ to_tsquery('english', ?)
ORDER BY
(CASE WHEN s.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,
display_name IS NULL,
avatar_url IS NULL
LIMIT ?
""" % (join_clause, where_clause)
args = (user_id, full_query, exact_query, prefix_query, limit + 1,)
elif isinstance(self.database_engine, Sqlite3Engine):
search_query = _parse_query_sqlite(search_term)
sql = """
SELECT d.user_id, display_name, avatar_url
FROM user_directory_search
INNER JOIN user_directory AS d USING (user_id)
%s
WHERE
%s
AND value MATCH ?
ORDER BY
rank(matchinfo(user_directory_search)) DESC,
display_name IS NULL,
avatar_url IS NULL
LIMIT ?
""" % (join_clause, where_clause)
args = (user_id, search_query, limit + 1)
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,
})
def _parse_query_sqlite(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.
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)
return both, exact, prefix