176 lines
5.4 KiB
Python
176 lines
5.4 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 2014-2016 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 collections import namedtuple
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from twisted.internet import defer
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from synapse.api.errors import SynapseError
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from synapse.storage._base import SQLBaseStore
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from synapse.util.caches.descriptors import cached
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RoomAliasMapping = namedtuple("RoomAliasMapping", ("room_id", "room_alias", "servers"))
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class DirectoryWorkerStore(SQLBaseStore):
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@defer.inlineCallbacks
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def get_association_from_room_alias(self, room_alias):
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""" Get's the room_id and server list for a given room_alias
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Args:
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room_alias (RoomAlias)
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Returns:
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Deferred: results in namedtuple with keys "room_id" and
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"servers" or None if no association can be found
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"""
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room_id = yield self.db.simple_select_one_onecol(
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"room_aliases",
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{"room_alias": room_alias.to_string()},
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"room_id",
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allow_none=True,
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desc="get_association_from_room_alias",
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)
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if not room_id:
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return None
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servers = yield self.db.simple_select_onecol(
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"room_alias_servers",
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{"room_alias": room_alias.to_string()},
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"server",
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desc="get_association_from_room_alias",
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)
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if not servers:
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return None
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return RoomAliasMapping(room_id, room_alias.to_string(), servers)
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def get_room_alias_creator(self, room_alias):
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return self.db.simple_select_one_onecol(
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table="room_aliases",
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keyvalues={"room_alias": room_alias},
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retcol="creator",
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desc="get_room_alias_creator",
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)
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@cached(max_entries=5000)
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def get_aliases_for_room(self, room_id):
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return self.db.simple_select_onecol(
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"room_aliases",
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{"room_id": room_id},
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"room_alias",
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desc="get_aliases_for_room",
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)
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class DirectoryStore(DirectoryWorkerStore):
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@defer.inlineCallbacks
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def create_room_alias_association(self, room_alias, room_id, servers, creator=None):
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""" Creates an association between a room alias and room_id/servers
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Args:
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room_alias (RoomAlias)
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room_id (str)
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servers (list)
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creator (str): Optional user_id of creator.
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Returns:
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Deferred
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"""
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def alias_txn(txn):
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self.db.simple_insert_txn(
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txn,
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"room_aliases",
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{
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"room_alias": room_alias.to_string(),
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"room_id": room_id,
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"creator": creator,
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},
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)
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self.db.simple_insert_many_txn(
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txn,
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table="room_alias_servers",
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values=[
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{"room_alias": room_alias.to_string(), "server": server}
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for server in servers
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],
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)
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self._invalidate_cache_and_stream(
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txn, self.get_aliases_for_room, (room_id,)
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)
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try:
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ret = yield self.db.runInteraction(
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"create_room_alias_association", alias_txn
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)
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except self.database_engine.module.IntegrityError:
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raise SynapseError(
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409, "Room alias %s already exists" % room_alias.to_string()
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)
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return ret
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@defer.inlineCallbacks
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def delete_room_alias(self, room_alias):
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room_id = yield self.db.runInteraction(
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"delete_room_alias", self._delete_room_alias_txn, room_alias
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)
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return room_id
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def _delete_room_alias_txn(self, txn, room_alias):
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txn.execute(
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"SELECT room_id FROM room_aliases WHERE room_alias = ?",
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(room_alias.to_string(),),
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)
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res = txn.fetchone()
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if res:
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room_id = res[0]
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else:
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return None
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txn.execute(
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"DELETE FROM room_aliases WHERE room_alias = ?", (room_alias.to_string(),)
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)
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txn.execute(
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"DELETE FROM room_alias_servers WHERE room_alias = ?",
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(room_alias.to_string(),),
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)
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self._invalidate_cache_and_stream(txn, self.get_aliases_for_room, (room_id,))
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return room_id
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def update_aliases_for_room(self, old_room_id, new_room_id, creator):
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def _update_aliases_for_room_txn(txn):
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sql = "UPDATE room_aliases SET room_id = ?, creator = ? WHERE room_id = ?"
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txn.execute(sql, (new_room_id, creator, old_room_id))
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self._invalidate_cache_and_stream(
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txn, self.get_aliases_for_room, (old_room_id,)
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)
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self._invalidate_cache_and_stream(
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txn, self.get_aliases_for_room, (new_room_id,)
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)
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return self.db.runInteraction(
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"_update_aliases_for_room_txn", _update_aliases_for_room_txn
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)
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