69 lines
2.1 KiB
Python
69 lines
2.1 KiB
Python
|
# -*- coding: utf-8 -*-
|
||
|
|
# Copyright 2016 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 ._base import SQLBaseStore, Cache
|
||
|
|
|
||
|
|
from twisted.internet import defer
|
||
|
|
|
||
|
|
|
||
|
|
# Number of msec of granularity to store the user IP 'last seen' time. Smaller
|
||
|
|
# times give more inserts into the database even for readonly API hits
|
||
|
|
# 120 seconds == 2 minutes
|
||
|
|
LAST_SEEN_GRANULARITY = 120 * 1000
|
||
|
|
|
||
|
|
|
||
|
|
class ClientIpStore(SQLBaseStore):
|
||
|
|
|
||
|
|
def __init__(self, hs):
|
||
|
|
self.client_ip_last_seen = Cache(
|
||
|
|
name="client_ip_last_seen",
|
||
|
|
keylen=4,
|
||
|
|
)
|
||
|
|
|
||
|
|
super(ClientIpStore, self).__init__(hs)
|
||
|
|
|
||
|
|
@defer.inlineCallbacks
|
||
|
|
def insert_client_ip(self, user, access_token, ip, user_agent):
|
||
|
|
now = int(self._clock.time_msec())
|
||
|
|
key = (user.to_string(), access_token, ip)
|
||
|
|
|
||
|
|
try:
|
||
|
|
last_seen = self.client_ip_last_seen.get(key)
|
||
|
|
except KeyError:
|
||
|
|
last_seen = None
|
||
|
|
|
||
|
|
# Rate-limited inserts
|
||
|
|
if last_seen is not None and (now - last_seen) < LAST_SEEN_GRANULARITY:
|
||
|
|
defer.returnValue(None)
|
||
|
|
|
||
|
|
self.client_ip_last_seen.prefill(key, now)
|
||
|
|
|
||
|
|
# It's safe not to lock here: a) no unique constraint,
|
||
|
|
# b) LAST_SEEN_GRANULARITY makes concurrent updates incredibly unlikely
|
||
|
|
yield self._simple_upsert(
|
||
|
|
"user_ips",
|
||
|
|
keyvalues={
|
||
|
|
"user_id": user.to_string(),
|
||
|
|
"access_token": access_token,
|
||
|
|
"ip": ip,
|
||
|
|
"user_agent": user_agent,
|
||
|
|
},
|
||
|
|
values={
|
||
|
|
"last_seen": now,
|
||
|
|
},
|
||
|
|
desc="insert_client_ip",
|
||
|
|
lock=False,
|
||
|
|
)
|