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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)
697 lines
24 KiB
Python
697 lines
24 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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import ujson as json
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from twisted.internet import defer
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from synapse.api.errors import StoreError
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from ._base import SQLBaseStore, Cache
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from synapse.util.caches.descriptors import cached, cachedList, cachedInlineCallbacks
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logger = logging.getLogger(__name__)
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class DeviceStore(SQLBaseStore):
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def __init__(self, db_conn, hs):
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super(DeviceStore, self).__init__(db_conn, hs)
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# Map of (user_id, device_id) -> bool. If there is an entry that implies
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# the device exists.
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self.device_id_exists_cache = Cache(
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name="device_id_exists",
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keylen=2,
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max_entries=10000,
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)
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self._clock.looping_call(
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self._prune_old_outbound_device_pokes, 60 * 60 * 1000
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)
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self.register_background_index_update(
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"device_lists_stream_idx",
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index_name="device_lists_stream_user_id",
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table="device_lists_stream",
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columns=["user_id", "device_id"],
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)
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@defer.inlineCallbacks
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def store_device(self, user_id, device_id,
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initial_device_display_name):
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"""Ensure the given device is known; add it to the store if not
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Args:
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user_id (str): id of user associated with the device
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device_id (str): id of device
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initial_device_display_name (str): initial displayname of the
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device. Ignored if device exists.
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Returns:
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defer.Deferred: boolean whether the device was inserted or an
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existing device existed with that ID.
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"""
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key = (user_id, device_id)
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if self.device_id_exists_cache.get(key, None):
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defer.returnValue(False)
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try:
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inserted = yield self._simple_insert(
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"devices",
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values={
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"user_id": user_id,
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"device_id": device_id,
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"display_name": initial_device_display_name
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},
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desc="store_device",
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or_ignore=True,
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)
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self.device_id_exists_cache.prefill(key, True)
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defer.returnValue(inserted)
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except Exception as e:
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logger.error("store_device with device_id=%s(%r) user_id=%s(%r)"
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" display_name=%s(%r) failed: %s",
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type(device_id).__name__, device_id,
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type(user_id).__name__, user_id,
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type(initial_device_display_name).__name__,
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initial_device_display_name, e)
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raise StoreError(500, "Problem storing device.")
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def get_device(self, user_id, device_id):
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"""Retrieve a device.
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Args:
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user_id (str): The ID of the user which owns the device
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device_id (str): The ID of the device to retrieve
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Returns:
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defer.Deferred for a dict containing the device information
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Raises:
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StoreError: if the device is not found
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"""
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return self._simple_select_one(
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table="devices",
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keyvalues={"user_id": user_id, "device_id": device_id},
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retcols=("user_id", "device_id", "display_name"),
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desc="get_device",
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)
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@defer.inlineCallbacks
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def delete_device(self, user_id, device_id):
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"""Delete a device.
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Args:
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user_id (str): The ID of the user which owns the device
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device_id (str): The ID of the device to delete
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Returns:
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defer.Deferred
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"""
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yield self._simple_delete_one(
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table="devices",
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keyvalues={"user_id": user_id, "device_id": device_id},
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desc="delete_device",
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)
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self.device_id_exists_cache.invalidate((user_id, device_id))
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@defer.inlineCallbacks
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def delete_devices(self, user_id, device_ids):
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"""Deletes several devices.
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Args:
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user_id (str): The ID of the user which owns the devices
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device_ids (list): The IDs of the devices to delete
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Returns:
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defer.Deferred
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"""
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yield self._simple_delete_many(
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table="devices",
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column="device_id",
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iterable=device_ids,
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keyvalues={"user_id": user_id},
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desc="delete_devices",
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)
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for device_id in device_ids:
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self.device_id_exists_cache.invalidate((user_id, device_id))
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def update_device(self, user_id, device_id, new_display_name=None):
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"""Update a device.
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Args:
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user_id (str): The ID of the user which owns the device
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device_id (str): The ID of the device to update
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new_display_name (str|None): new displayname for device; None
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to leave unchanged
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Raises:
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StoreError: if the device is not found
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Returns:
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defer.Deferred
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"""
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updates = {}
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if new_display_name is not None:
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updates["display_name"] = new_display_name
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if not updates:
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return defer.succeed(None)
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return self._simple_update_one(
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table="devices",
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keyvalues={"user_id": user_id, "device_id": device_id},
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updatevalues=updates,
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desc="update_device",
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)
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@defer.inlineCallbacks
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def get_devices_by_user(self, user_id):
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"""Retrieve all of a user's registered devices.
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Args:
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user_id (str):
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Returns:
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defer.Deferred: resolves to a dict from device_id to a dict
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containing "device_id", "user_id" and "display_name" for each
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device.
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"""
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devices = yield self._simple_select_list(
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table="devices",
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keyvalues={"user_id": user_id},
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retcols=("user_id", "device_id", "display_name"),
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desc="get_devices_by_user"
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)
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defer.returnValue({d["device_id"]: d for d in devices})
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@cached(max_entries=10000)
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def get_device_list_last_stream_id_for_remote(self, user_id):
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"""Get the last stream_id we got for a user. May be None if we haven't
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got any information for them.
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"""
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return self._simple_select_one_onecol(
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table="device_lists_remote_extremeties",
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keyvalues={"user_id": user_id},
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retcol="stream_id",
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desc="get_device_list_remote_extremity",
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allow_none=True,
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)
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@cachedList(cached_method_name="get_device_list_last_stream_id_for_remote",
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list_name="user_ids", inlineCallbacks=True)
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def get_device_list_last_stream_id_for_remotes(self, user_ids):
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rows = yield self._simple_select_many_batch(
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table="device_lists_remote_extremeties",
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column="user_id",
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iterable=user_ids,
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retcols=("user_id", "stream_id",),
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desc="get_user_devices_from_cache",
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)
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results = {user_id: None for user_id in user_ids}
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results.update({
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row["user_id"]: row["stream_id"] for row in rows
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})
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defer.returnValue(results)
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@defer.inlineCallbacks
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def mark_remote_user_device_list_as_unsubscribed(self, user_id):
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"""Mark that we no longer track device lists for remote user.
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"""
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yield self._simple_delete(
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table="device_lists_remote_extremeties",
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keyvalues={
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"user_id": user_id,
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},
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desc="mark_remote_user_device_list_as_unsubscribed",
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)
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self.get_device_list_last_stream_id_for_remote.invalidate((user_id,))
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def update_remote_device_list_cache_entry(self, user_id, device_id, content,
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stream_id):
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"""Updates a single user's device in the cache.
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"""
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return self.runInteraction(
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"update_remote_device_list_cache_entry",
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self._update_remote_device_list_cache_entry_txn,
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user_id, device_id, content, stream_id,
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)
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def _update_remote_device_list_cache_entry_txn(self, txn, user_id, device_id,
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content, stream_id):
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self._simple_upsert_txn(
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txn,
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table="device_lists_remote_cache",
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keyvalues={
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"user_id": user_id,
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"device_id": device_id,
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},
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values={
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"content": json.dumps(content),
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}
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)
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txn.call_after(self._get_cached_user_device.invalidate, (user_id, device_id,))
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txn.call_after(self._get_cached_devices_for_user.invalidate, (user_id,))
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txn.call_after(
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self.get_device_list_last_stream_id_for_remote.invalidate, (user_id,)
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)
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self._simple_upsert_txn(
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txn,
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table="device_lists_remote_extremeties",
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keyvalues={
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"user_id": user_id,
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},
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values={
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"stream_id": stream_id,
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}
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)
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def update_remote_device_list_cache(self, user_id, devices, stream_id):
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"""Replace the cache of the remote user's devices.
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"""
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return self.runInteraction(
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"update_remote_device_list_cache",
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self._update_remote_device_list_cache_txn,
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user_id, devices, stream_id,
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)
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def _update_remote_device_list_cache_txn(self, txn, user_id, devices,
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stream_id):
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self._simple_delete_txn(
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txn,
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table="device_lists_remote_cache",
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keyvalues={
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"user_id": user_id,
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},
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)
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self._simple_insert_many_txn(
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txn,
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table="device_lists_remote_cache",
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values=[
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{
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"user_id": user_id,
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"device_id": content["device_id"],
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"content": json.dumps(content),
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}
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for content in devices
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]
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)
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txn.call_after(self._get_cached_devices_for_user.invalidate, (user_id,))
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txn.call_after(self._get_cached_user_device.invalidate_many, (user_id,))
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txn.call_after(
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self.get_device_list_last_stream_id_for_remote.invalidate, (user_id,)
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)
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self._simple_upsert_txn(
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txn,
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table="device_lists_remote_extremeties",
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keyvalues={
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"user_id": user_id,
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},
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values={
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"stream_id": stream_id,
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}
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)
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def get_devices_by_remote(self, destination, from_stream_id):
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"""Get stream of updates to send to remote servers
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Returns:
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(int, list[dict]): current stream id and list of updates
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"""
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now_stream_id = self._device_list_id_gen.get_current_token()
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has_changed = self._device_list_federation_stream_cache.has_entity_changed(
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destination, int(from_stream_id)
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)
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if not has_changed:
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return (now_stream_id, [])
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return self.runInteraction(
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"get_devices_by_remote", self._get_devices_by_remote_txn,
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destination, from_stream_id, now_stream_id,
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)
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def _get_devices_by_remote_txn(self, txn, destination, from_stream_id,
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now_stream_id):
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sql = """
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SELECT user_id, device_id, max(stream_id) FROM device_lists_outbound_pokes
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WHERE destination = ? AND ? < stream_id AND stream_id <= ? AND sent = ?
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GROUP BY user_id, device_id
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LIMIT 20
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"""
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txn.execute(
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sql, (destination, from_stream_id, now_stream_id, False)
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)
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# maps (user_id, device_id) -> stream_id
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query_map = {(r[0], r[1]): r[2] for r in txn}
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if not query_map:
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return (now_stream_id, [])
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if len(query_map) >= 20:
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now_stream_id = max(stream_id for stream_id in query_map.itervalues())
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devices = self._get_e2e_device_keys_txn(
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txn, query_map.keys(), include_all_devices=True
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)
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prev_sent_id_sql = """
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SELECT coalesce(max(stream_id), 0) as stream_id
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FROM device_lists_outbound_last_success
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WHERE destination = ? AND user_id = ? AND stream_id <= ?
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"""
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results = []
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for user_id, user_devices in devices.iteritems():
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# The prev_id for the first row is always the last row before
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# `from_stream_id`
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txn.execute(prev_sent_id_sql, (destination, user_id, from_stream_id))
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rows = txn.fetchall()
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prev_id = rows[0][0]
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for device_id, device in user_devices.iteritems():
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stream_id = query_map[(user_id, device_id)]
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result = {
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"user_id": user_id,
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"device_id": device_id,
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"prev_id": [prev_id] if prev_id else [],
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"stream_id": stream_id,
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}
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prev_id = stream_id
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key_json = device.get("key_json", None)
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if key_json:
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result["keys"] = json.loads(key_json)
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device_display_name = device.get("device_display_name", None)
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if device_display_name:
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result["device_display_name"] = device_display_name
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results.append(result)
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return (now_stream_id, results)
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@defer.inlineCallbacks
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def get_user_devices_from_cache(self, query_list):
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"""Get the devices (and keys if any) for remote users from the cache.
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Args:
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query_list(list): List of (user_id, device_ids), if device_ids is
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falsey then return all device ids for that user.
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Returns:
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(user_ids_not_in_cache, results_map), where user_ids_not_in_cache is
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a set of user_ids and results_map is a mapping of
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user_id -> device_id -> device_info
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"""
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user_ids = set(user_id for user_id, _ in query_list)
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user_map = yield self.get_device_list_last_stream_id_for_remotes(list(user_ids))
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user_ids_in_cache = set(
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user_id for user_id, stream_id in user_map.items() if stream_id
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)
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user_ids_not_in_cache = user_ids - user_ids_in_cache
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results = {}
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for user_id, device_id in query_list:
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if user_id not in user_ids_in_cache:
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continue
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if device_id:
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device = yield self._get_cached_user_device(user_id, device_id)
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results.setdefault(user_id, {})[device_id] = device
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else:
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results[user_id] = yield self._get_cached_devices_for_user(user_id)
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defer.returnValue((user_ids_not_in_cache, results))
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@cachedInlineCallbacks(num_args=2, tree=True)
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def _get_cached_user_device(self, user_id, device_id):
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content = yield self._simple_select_one_onecol(
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table="device_lists_remote_cache",
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keyvalues={
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"user_id": user_id,
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"device_id": device_id,
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},
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retcol="content",
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desc="_get_cached_user_device",
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)
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defer.returnValue(json.loads(content))
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@cachedInlineCallbacks()
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def _get_cached_devices_for_user(self, user_id):
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devices = yield self._simple_select_list(
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table="device_lists_remote_cache",
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keyvalues={
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"user_id": user_id,
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},
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retcols=("device_id", "content"),
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desc="_get_cached_devices_for_user",
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)
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defer.returnValue({
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device["device_id"]: json.loads(device["content"])
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for device in devices
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})
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def get_devices_with_keys_by_user(self, user_id):
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"""Get all devices (with any device keys) for a user
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Returns:
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(stream_id, devices)
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"""
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return self.runInteraction(
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"get_devices_with_keys_by_user",
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self._get_devices_with_keys_by_user_txn, user_id,
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)
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def _get_devices_with_keys_by_user_txn(self, txn, user_id):
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now_stream_id = self._device_list_id_gen.get_current_token()
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devices = self._get_e2e_device_keys_txn(
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txn, [(user_id, None)], include_all_devices=True
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)
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if devices:
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user_devices = devices[user_id]
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results = []
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for device_id, device in user_devices.iteritems():
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result = {
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"device_id": device_id,
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}
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key_json = device.get("key_json", None)
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if key_json:
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result["keys"] = json.loads(key_json)
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device_display_name = device.get("device_display_name", None)
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if device_display_name:
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result["device_display_name"] = device_display_name
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results.append(result)
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return now_stream_id, results
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return now_stream_id, []
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def mark_as_sent_devices_by_remote(self, destination, stream_id):
|
|
"""Mark that updates have successfully been sent to the destination.
|
|
"""
|
|
return self.runInteraction(
|
|
"mark_as_sent_devices_by_remote", self._mark_as_sent_devices_by_remote_txn,
|
|
destination, stream_id,
|
|
)
|
|
|
|
def _mark_as_sent_devices_by_remote_txn(self, txn, destination, stream_id):
|
|
# We update the device_lists_outbound_last_success with the successfully
|
|
# poked users. We do the join to see which users need to be inserted and
|
|
# which updated.
|
|
sql = """
|
|
SELECT user_id, coalesce(max(o.stream_id), 0), (max(s.stream_id) IS NOT NULL)
|
|
FROM device_lists_outbound_pokes as o
|
|
LEFT JOIN device_lists_outbound_last_success as s
|
|
USING (destination, user_id)
|
|
WHERE destination = ? AND o.stream_id <= ?
|
|
GROUP BY user_id
|
|
"""
|
|
txn.execute(sql, (destination, stream_id,))
|
|
rows = txn.fetchall()
|
|
|
|
sql = """
|
|
UPDATE device_lists_outbound_last_success
|
|
SET stream_id = ?
|
|
WHERE destination = ? AND user_id = ?
|
|
"""
|
|
txn.executemany(
|
|
sql, ((row[1], destination, row[0],) for row in rows if row[2])
|
|
)
|
|
|
|
sql = """
|
|
INSERT INTO device_lists_outbound_last_success
|
|
(destination, user_id, stream_id) VALUES (?, ?, ?)
|
|
"""
|
|
txn.executemany(
|
|
sql, ((destination, row[0], row[1],) for row in rows if not row[2])
|
|
)
|
|
|
|
# Delete all sent outbound pokes
|
|
sql = """
|
|
DELETE FROM device_lists_outbound_pokes
|
|
WHERE destination = ? AND stream_id <= ?
|
|
"""
|
|
txn.execute(sql, (destination, stream_id,))
|
|
|
|
@defer.inlineCallbacks
|
|
def get_user_whose_devices_changed(self, from_key):
|
|
"""Get set of users whose devices have changed since `from_key`.
|
|
"""
|
|
from_key = int(from_key)
|
|
changed = self._device_list_stream_cache.get_all_entities_changed(from_key)
|
|
if changed is not None:
|
|
defer.returnValue(set(changed))
|
|
|
|
sql = """
|
|
SELECT DISTINCT user_id FROM device_lists_stream WHERE stream_id > ?
|
|
"""
|
|
rows = yield self._execute("get_user_whose_devices_changed", None, sql, from_key)
|
|
defer.returnValue(set(row[0] for row in rows))
|
|
|
|
def get_all_device_list_changes_for_remotes(self, from_key, to_key):
|
|
"""Return a list of `(stream_id, user_id, destination)` which is the
|
|
combined list of changes to devices, and which destinations need to be
|
|
poked. `destination` may be None if no destinations need to be poked.
|
|
"""
|
|
sql = """
|
|
SELECT stream_id, user_id, destination FROM device_lists_stream
|
|
LEFT JOIN device_lists_outbound_pokes USING (stream_id, user_id, device_id)
|
|
WHERE ? < stream_id AND stream_id <= ?
|
|
"""
|
|
return self._execute(
|
|
"get_all_device_list_changes_for_remotes", None,
|
|
sql, from_key, to_key
|
|
)
|
|
|
|
@defer.inlineCallbacks
|
|
def add_device_change_to_streams(self, user_id, device_ids, hosts):
|
|
"""Persist that a user's devices have been updated, and which hosts
|
|
(if any) should be poked.
|
|
"""
|
|
with self._device_list_id_gen.get_next() as stream_id:
|
|
yield self.runInteraction(
|
|
"add_device_change_to_streams", self._add_device_change_txn,
|
|
user_id, device_ids, hosts, stream_id,
|
|
)
|
|
defer.returnValue(stream_id)
|
|
|
|
def _add_device_change_txn(self, txn, user_id, device_ids, hosts, stream_id):
|
|
now = self._clock.time_msec()
|
|
|
|
txn.call_after(
|
|
self._device_list_stream_cache.entity_has_changed,
|
|
user_id, stream_id,
|
|
)
|
|
for host in hosts:
|
|
txn.call_after(
|
|
self._device_list_federation_stream_cache.entity_has_changed,
|
|
host, stream_id,
|
|
)
|
|
|
|
# Delete older entries in the table, as we really only care about
|
|
# when the latest change happened.
|
|
txn.executemany(
|
|
"""
|
|
DELETE FROM device_lists_stream
|
|
WHERE user_id = ? AND device_id = ? AND stream_id < ?
|
|
""",
|
|
[(user_id, device_id, stream_id) for device_id in device_ids]
|
|
)
|
|
|
|
self._simple_insert_many_txn(
|
|
txn,
|
|
table="device_lists_stream",
|
|
values=[
|
|
{
|
|
"stream_id": stream_id,
|
|
"user_id": user_id,
|
|
"device_id": device_id,
|
|
}
|
|
for device_id in device_ids
|
|
]
|
|
)
|
|
|
|
self._simple_insert_many_txn(
|
|
txn,
|
|
table="device_lists_outbound_pokes",
|
|
values=[
|
|
{
|
|
"destination": destination,
|
|
"stream_id": stream_id,
|
|
"user_id": user_id,
|
|
"device_id": device_id,
|
|
"sent": False,
|
|
"ts": now,
|
|
}
|
|
for destination in hosts
|
|
for device_id in device_ids
|
|
]
|
|
)
|
|
|
|
def get_device_stream_token(self):
|
|
return self._device_list_id_gen.get_current_token()
|
|
|
|
def _prune_old_outbound_device_pokes(self):
|
|
"""Delete old entries out of the device_lists_outbound_pokes to ensure
|
|
that we don't fill up due to dead servers. We keep one entry per
|
|
(destination, user_id) tuple to ensure that the prev_ids remain correct
|
|
if the server does come back.
|
|
"""
|
|
yesterday = self._clock.time_msec() - 24 * 60 * 60 * 1000
|
|
|
|
def _prune_txn(txn):
|
|
select_sql = """
|
|
SELECT destination, user_id, max(stream_id) as stream_id
|
|
FROM device_lists_outbound_pokes
|
|
GROUP BY destination, user_id
|
|
HAVING min(ts) < ? AND count(*) > 1
|
|
"""
|
|
|
|
txn.execute(select_sql, (yesterday,))
|
|
rows = txn.fetchall()
|
|
|
|
if not rows:
|
|
return
|
|
|
|
delete_sql = """
|
|
DELETE FROM device_lists_outbound_pokes
|
|
WHERE ts < ? AND destination = ? AND user_id = ? AND stream_id < ?
|
|
"""
|
|
|
|
txn.executemany(
|
|
delete_sql,
|
|
(
|
|
(yesterday, row[0], row[1], row[2])
|
|
for row in rows
|
|
)
|
|
)
|
|
|
|
# Since we've deleted unsent deltas, we need to remove the entry
|
|
# of last successful sent so that the prev_ids are correctly set.
|
|
sql = """
|
|
DELETE FROM device_lists_outbound_last_success
|
|
WHERE destination = ? AND user_id = ?
|
|
"""
|
|
txn.executemany(sql, ((row[0], row[1]) for row in rows))
|
|
|
|
logger.info("Pruned %d device list outbound pokes", txn.rowcount)
|
|
|
|
return self.runInteraction(
|
|
"_prune_old_outbound_device_pokes", _prune_txn
|
|
)
|