699 lines
24 KiB
Python
699 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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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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from canonicaljson import json
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from six import itervalues, iteritems
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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 itervalues(query_map))
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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 iteritems(devices):
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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 iteritems(user_devices):
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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 iteritems(user_devices):
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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):
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"""Mark that updates have successfully been sent to the destination.
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"""
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return self.runInteraction(
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"mark_as_sent_devices_by_remote", self._mark_as_sent_devices_by_remote_txn,
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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
|
|
)
|