forked-synapse/synapse/storage/room.py
2015-03-20 13:52:56 +00:00

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# -*- coding: utf-8 -*-
# Copyright 2014, 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 sqlite3 import IntegrityError
from synapse.api.errors import StoreError
from ._base import SQLBaseStore, Table
import collections
import logging
logger = logging.getLogger(__name__)
OpsLevel = collections.namedtuple("OpsLevel", (
"ban_level", "kick_level", "redact_level")
)
class RoomStore(SQLBaseStore):
@defer.inlineCallbacks
def store_room(self, room_id, room_creator_user_id, is_public):
"""Stores a room.
Args:
room_id (str): The desired room ID, can be None.
room_creator_user_id (str): The user ID of the room creator.
is_public (bool): True to indicate that this room should appear in
public room lists.
Raises:
StoreError if the room could not be stored.
"""
try:
yield self._simple_insert(RoomsTable.table_name, dict(
room_id=room_id,
creator=room_creator_user_id,
is_public=is_public
))
except IntegrityError:
raise StoreError(409, "Room ID in use.")
except Exception as e:
logger.error("store_room with room_id=%s failed: %s", room_id, e)
raise StoreError(500, "Problem creating room.")
def get_room(self, room_id):
"""Retrieve a room.
Args:
room_id (str): The ID of the room to retrieve.
Returns:
A namedtuple containing the room information, or an empty list.
"""
query = RoomsTable.select_statement("room_id=?")
return self._execute(
"get_room",
lambda txn: RoomsTable.decode_single_result(txn.fetchall()),
query,
room_id,
)
@defer.inlineCallbacks
def get_rooms(self, is_public):
"""Retrieve a list of all public rooms.
Args:
is_public (bool): True if the rooms returned should be public.
Returns:
A list of room dicts containing at least a "room_id" key, a
"topic" key if one is set, and a "name" key if one is set
"""
def f(txn):
topic_subquery = (
"SELECT topics.event_id as event_id, "
"topics.room_id as room_id, topic "
"FROM topics "
"INNER JOIN current_state_events as c "
"ON c.event_id = topics.event_id "
)
name_subquery = (
"SELECT room_names.event_id as event_id, "
"room_names.room_id as room_id, name "
"FROM room_names "
"INNER JOIN current_state_events as c "
"ON c.event_id = room_names.event_id "
)
# We use non printing ascii character US () as a seperator
sql = (
"SELECT r.room_id, n.name, t.topic, "
"group_concat(a.room_alias, '') "
"FROM rooms AS r "
"LEFT JOIN (%(topic)s) AS t ON t.room_id = r.room_id "
"LEFT JOIN (%(name)s) AS n ON n.room_id = r.room_id "
"INNER JOIN room_aliases AS a ON a.room_id = r.room_id "
"WHERE r.is_public = ? "
"GROUP BY r.room_id "
) % {
"topic": topic_subquery,
"name": name_subquery,
}
txn.execute(sql, (is_public,))
return txn.fetchall()
rows = yield self.runInteraction(
"get_rooms", f
)
ret = [
{
"room_id": r[0],
"name": r[1],
"topic": r[2],
"aliases": r[3].split(""),
}
for r in rows
]
defer.returnValue(ret)
def _store_room_topic_txn(self, txn, event):
if hasattr(event, "content") and "topic" in event.content:
self._simple_insert_txn(
txn,
"topics",
{
"event_id": event.event_id,
"room_id": event.room_id,
"topic": event.content["topic"],
}
)
def _store_room_name_txn(self, txn, event):
if hasattr(event, "content") and "name" in event.content:
self._simple_insert_txn(
txn,
"room_names",
{
"event_id": event.event_id,
"room_id": event.room_id,
"name": event.content["name"],
}
)
@defer.inlineCallbacks
def get_room_name_and_aliases(self, room_id):
del_sql = (
"SELECT event_id FROM redactions WHERE redacts = e.event_id "
"LIMIT 1"
)
sql = (
"SELECT e.*, (%(redacted)s) AS redacted FROM events as e "
"INNER JOIN current_state_events as c ON e.event_id = c.event_id "
"INNER JOIN state_events as s ON e.event_id = s.event_id "
"WHERE c.room_id = ? "
) % {
"redacted": del_sql,
}
sql += " AND ((s.type = 'm.room.name' AND s.state_key = '')"
sql += " OR s.type = 'm.room.aliases')"
args = (room_id,)
results = yield self._execute_and_decode("get_current_state", sql, *args)
events = yield self._parse_events(results)
name = None
aliases = []
for e in events:
if e.type == 'm.room.name':
if 'name' in e.content:
name = e.content['name']
elif e.type == 'm.room.aliases':
if 'aliases' in e.content:
aliases.extend(e.content['aliases'])
defer.returnValue((name, aliases))
class RoomsTable(Table):
table_name = "rooms"
fields = [
"room_id",
"is_public",
"creator"
]
EntryType = collections.namedtuple("RoomEntry", fields)