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![Richard van der Hoff](/assets/img/avatar_default.png)
Add db_conn parameters to the `__init__` methods of the *Store classes, so that they are all consistent, which makes the multiple inheritance work correctly (and so that we can later extract mixins which can be used in the slavedstores)
222 lines
7.3 KiB
Python
222 lines
7.3 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 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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import logging
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from twisted.internet import defer, reactor
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from ._base import Cache
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from . import background_updates
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from synapse.util.caches import CACHE_SIZE_FACTOR
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logger = logging.getLogger(__name__)
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# Number of msec of granularity to store the user IP 'last seen' time. Smaller
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# times give more inserts into the database even for readonly API hits
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# 120 seconds == 2 minutes
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LAST_SEEN_GRANULARITY = 120 * 1000
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class ClientIpStore(background_updates.BackgroundUpdateStore):
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def __init__(self, db_conn, hs):
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self.client_ip_last_seen = Cache(
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name="client_ip_last_seen",
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keylen=4,
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max_entries=50000 * CACHE_SIZE_FACTOR,
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)
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super(ClientIpStore, self).__init__(db_conn, hs)
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self.register_background_index_update(
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"user_ips_device_index",
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index_name="user_ips_device_id",
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table="user_ips",
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columns=["user_id", "device_id", "last_seen"],
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)
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# (user_id, access_token, ip) -> (user_agent, device_id, last_seen)
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self._batch_row_update = {}
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self._client_ip_looper = self._clock.looping_call(
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self._update_client_ips_batch, 5 * 1000
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)
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reactor.addSystemEventTrigger("before", "shutdown", self._update_client_ips_batch)
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def insert_client_ip(self, user_id, access_token, ip, user_agent, device_id,
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now=None):
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if not now:
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now = int(self._clock.time_msec())
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key = (user_id, access_token, ip)
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try:
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last_seen = self.client_ip_last_seen.get(key)
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except KeyError:
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last_seen = None
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# Rate-limited inserts
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if last_seen is not None and (now - last_seen) < LAST_SEEN_GRANULARITY:
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return
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self.client_ip_last_seen.prefill(key, now)
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self._batch_row_update[key] = (user_agent, device_id, now)
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def _update_client_ips_batch(self):
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to_update = self._batch_row_update
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self._batch_row_update = {}
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return self.runInteraction(
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"_update_client_ips_batch", self._update_client_ips_batch_txn, to_update
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)
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def _update_client_ips_batch_txn(self, txn, to_update):
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self.database_engine.lock_table(txn, "user_ips")
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for entry in to_update.iteritems():
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(user_id, access_token, ip), (user_agent, device_id, last_seen) = entry
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self._simple_upsert_txn(
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txn,
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table="user_ips",
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keyvalues={
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"user_id": user_id,
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"access_token": access_token,
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"ip": ip,
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"user_agent": user_agent,
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"device_id": device_id,
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},
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values={
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"last_seen": last_seen,
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},
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lock=False,
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)
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@defer.inlineCallbacks
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def get_last_client_ip_by_device(self, user_id, device_id):
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"""For each device_id listed, give the user_ip it was last seen on
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Args:
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user_id (str)
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device_id (str): If None fetches all devices for the user
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Returns:
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defer.Deferred: resolves to a dict, where the keys
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are (user_id, device_id) tuples. The values are also dicts, with
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keys giving the column names
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"""
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res = yield self.runInteraction(
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"get_last_client_ip_by_device",
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self._get_last_client_ip_by_device_txn,
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user_id, device_id,
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retcols=(
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"user_id",
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"access_token",
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"ip",
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"user_agent",
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"device_id",
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"last_seen",
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),
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)
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ret = {(d["user_id"], d["device_id"]): d for d in res}
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for key in self._batch_row_update:
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uid, access_token, ip = key
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if uid == user_id:
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user_agent, did, last_seen = self._batch_row_update[key]
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if not device_id or did == device_id:
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ret[(user_id, device_id)] = {
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"user_id": user_id,
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"access_token": access_token,
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"ip": ip,
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"user_agent": user_agent,
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"device_id": did,
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"last_seen": last_seen,
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}
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defer.returnValue(ret)
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@classmethod
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def _get_last_client_ip_by_device_txn(cls, txn, user_id, device_id, retcols):
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where_clauses = []
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bindings = []
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if device_id is None:
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where_clauses.append("user_id = ?")
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bindings.extend((user_id, ))
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else:
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where_clauses.append("(user_id = ? AND device_id = ?)")
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bindings.extend((user_id, device_id))
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if not where_clauses:
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return []
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inner_select = (
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"SELECT MAX(last_seen) mls, user_id, device_id FROM user_ips "
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"WHERE %(where)s "
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"GROUP BY user_id, device_id"
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) % {
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"where": " OR ".join(where_clauses),
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}
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sql = (
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"SELECT %(retcols)s FROM user_ips "
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"JOIN (%(inner_select)s) ips ON"
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" user_ips.last_seen = ips.mls AND"
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" user_ips.user_id = ips.user_id AND"
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" (user_ips.device_id = ips.device_id OR"
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" (user_ips.device_id IS NULL AND ips.device_id IS NULL)"
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" )"
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) % {
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"retcols": ",".join("user_ips." + c for c in retcols),
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"inner_select": inner_select,
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}
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txn.execute(sql, bindings)
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return cls.cursor_to_dict(txn)
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@defer.inlineCallbacks
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def get_user_ip_and_agents(self, user):
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user_id = user.to_string()
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results = {}
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for key in self._batch_row_update:
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uid, access_token, ip = key
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if uid == user_id:
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user_agent, _, last_seen = self._batch_row_update[key]
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results[(access_token, ip)] = (user_agent, last_seen)
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rows = yield self._simple_select_list(
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table="user_ips",
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keyvalues={"user_id": user_id},
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retcols=[
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"access_token", "ip", "user_agent", "last_seen"
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],
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desc="get_user_ip_and_agents",
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)
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results.update(
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((row["access_token"], row["ip"]), (row["user_agent"], row["last_seen"]))
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for row in rows
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)
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defer.returnValue(list(
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{
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"access_token": access_token,
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"ip": ip,
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"user_agent": user_agent,
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"last_seen": last_seen,
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}
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for (access_token, ip), (user_agent, last_seen) in results.iteritems()
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))
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