mirror of
https://git.anonymousland.org/anonymousland/synapse-product.git
synced 2024-12-22 11:24:57 -05:00
4325be1a52
When updating room_stats_state, we try to check for null bytes slipping in to the content for state events. It turns out we had added guest_access as a field to room_stats_state without including it in the null byte check. Lo and behold, a null byte in a m.room.guest_access event then breaks room_stats_state updates. This PR adds the check for guest_access. A further PR will improve this function so that this hopefully does not happen again in future.
885 lines
31 KiB
Python
885 lines
31 KiB
Python
# -*- coding: utf-8 -*-
|
||
# Copyright 2018, 2019 New Vector Ltd
|
||
# Copyright 2019 The Matrix.org Foundation C.I.C.
|
||
#
|
||
# Licensed under the Apache License, Version 2.0 (the "License");
|
||
# you may not use this file except in compliance with the License.
|
||
# You may obtain a copy of the License at
|
||
#
|
||
# http://www.apache.org/licenses/LICENSE-2.0
|
||
#
|
||
# Unless required by applicable law or agreed to in writing, software
|
||
# distributed under the License is distributed on an "AS IS" BASIS,
|
||
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
# See the License for the specific language governing permissions and
|
||
# limitations under the License.
|
||
|
||
import logging
|
||
from collections import Counter
|
||
from itertools import chain
|
||
from typing import Any, Dict, List, Optional, Tuple
|
||
|
||
from twisted.internet.defer import DeferredLock
|
||
|
||
from synapse.api.constants import EventTypes, Membership
|
||
from synapse.storage.database import DatabasePool
|
||
from synapse.storage.databases.main.state_deltas import StateDeltasStore
|
||
from synapse.storage.engines import PostgresEngine
|
||
from synapse.util.caches.descriptors import cached
|
||
|
||
logger = logging.getLogger(__name__)
|
||
|
||
# these fields track absolutes (e.g. total number of rooms on the server)
|
||
# You can think of these as Prometheus Gauges.
|
||
# You can draw these stats on a line graph.
|
||
# Example: number of users in a room
|
||
ABSOLUTE_STATS_FIELDS = {
|
||
"room": (
|
||
"current_state_events",
|
||
"joined_members",
|
||
"invited_members",
|
||
"left_members",
|
||
"banned_members",
|
||
"local_users_in_room",
|
||
),
|
||
"user": ("joined_rooms",),
|
||
}
|
||
|
||
# these fields are per-timeslice and so should be reset to 0 upon a new slice
|
||
# You can draw these stats on a histogram.
|
||
# Example: number of events sent locally during a time slice
|
||
PER_SLICE_FIELDS = {
|
||
"room": ("total_events", "total_event_bytes"),
|
||
"user": ("invites_sent", "rooms_created", "total_events", "total_event_bytes"),
|
||
}
|
||
|
||
TYPE_TO_TABLE = {"room": ("room_stats", "room_id"), "user": ("user_stats", "user_id")}
|
||
|
||
# these are the tables (& ID columns) which contain our actual subjects
|
||
TYPE_TO_ORIGIN_TABLE = {"room": ("rooms", "room_id"), "user": ("users", "name")}
|
||
|
||
|
||
class StatsStore(StateDeltasStore):
|
||
def __init__(self, database: DatabasePool, db_conn, hs):
|
||
super().__init__(database, db_conn, hs)
|
||
|
||
self.server_name = hs.hostname
|
||
self.clock = self.hs.get_clock()
|
||
self.stats_enabled = hs.config.stats_enabled
|
||
self.stats_bucket_size = hs.config.stats_bucket_size
|
||
|
||
self.stats_delta_processing_lock = DeferredLock()
|
||
|
||
self.db_pool.updates.register_background_update_handler(
|
||
"populate_stats_process_rooms", self._populate_stats_process_rooms
|
||
)
|
||
self.db_pool.updates.register_background_update_handler(
|
||
"populate_stats_process_users", self._populate_stats_process_users
|
||
)
|
||
# we no longer need to perform clean-up, but we will give ourselves
|
||
# the potential to reintroduce it in the future – so documentation
|
||
# will still encourage the use of this no-op handler.
|
||
self.db_pool.updates.register_noop_background_update("populate_stats_cleanup")
|
||
self.db_pool.updates.register_noop_background_update("populate_stats_prepare")
|
||
|
||
def quantise_stats_time(self, ts):
|
||
"""
|
||
Quantises a timestamp to be a multiple of the bucket size.
|
||
|
||
Args:
|
||
ts (int): the timestamp to quantise, in milliseconds since the Unix
|
||
Epoch
|
||
|
||
Returns:
|
||
int: a timestamp which
|
||
- is divisible by the bucket size;
|
||
- is no later than `ts`; and
|
||
- is the largest such timestamp.
|
||
"""
|
||
return (ts // self.stats_bucket_size) * self.stats_bucket_size
|
||
|
||
async def _populate_stats_process_users(self, progress, batch_size):
|
||
"""
|
||
This is a background update which regenerates statistics for users.
|
||
"""
|
||
if not self.stats_enabled:
|
||
await self.db_pool.updates._end_background_update(
|
||
"populate_stats_process_users"
|
||
)
|
||
return 1
|
||
|
||
last_user_id = progress.get("last_user_id", "")
|
||
|
||
def _get_next_batch(txn):
|
||
sql = """
|
||
SELECT DISTINCT name FROM users
|
||
WHERE name > ?
|
||
ORDER BY name ASC
|
||
LIMIT ?
|
||
"""
|
||
txn.execute(sql, (last_user_id, batch_size))
|
||
return [r for r, in txn]
|
||
|
||
users_to_work_on = await self.db_pool.runInteraction(
|
||
"_populate_stats_process_users", _get_next_batch
|
||
)
|
||
|
||
# No more rooms -- complete the transaction.
|
||
if not users_to_work_on:
|
||
await self.db_pool.updates._end_background_update(
|
||
"populate_stats_process_users"
|
||
)
|
||
return 1
|
||
|
||
for user_id in users_to_work_on:
|
||
await self._calculate_and_set_initial_state_for_user(user_id)
|
||
progress["last_user_id"] = user_id
|
||
|
||
await self.db_pool.runInteraction(
|
||
"populate_stats_process_users",
|
||
self.db_pool.updates._background_update_progress_txn,
|
||
"populate_stats_process_users",
|
||
progress,
|
||
)
|
||
|
||
return len(users_to_work_on)
|
||
|
||
async def _populate_stats_process_rooms(self, progress, batch_size):
|
||
"""This is a background update which regenerates statistics for rooms."""
|
||
if not self.stats_enabled:
|
||
await self.db_pool.updates._end_background_update(
|
||
"populate_stats_process_rooms"
|
||
)
|
||
return 1
|
||
|
||
last_room_id = progress.get("last_room_id", "")
|
||
|
||
def _get_next_batch(txn):
|
||
sql = """
|
||
SELECT DISTINCT room_id FROM current_state_events
|
||
WHERE room_id > ?
|
||
ORDER BY room_id ASC
|
||
LIMIT ?
|
||
"""
|
||
txn.execute(sql, (last_room_id, batch_size))
|
||
return [r for r, in txn]
|
||
|
||
rooms_to_work_on = await self.db_pool.runInteraction(
|
||
"populate_stats_rooms_get_batch", _get_next_batch
|
||
)
|
||
|
||
# No more rooms -- complete the transaction.
|
||
if not rooms_to_work_on:
|
||
await self.db_pool.updates._end_background_update(
|
||
"populate_stats_process_rooms"
|
||
)
|
||
return 1
|
||
|
||
for room_id in rooms_to_work_on:
|
||
await self._calculate_and_set_initial_state_for_room(room_id)
|
||
progress["last_room_id"] = room_id
|
||
|
||
await self.db_pool.runInteraction(
|
||
"_populate_stats_process_rooms",
|
||
self.db_pool.updates._background_update_progress_txn,
|
||
"populate_stats_process_rooms",
|
||
progress,
|
||
)
|
||
|
||
return len(rooms_to_work_on)
|
||
|
||
async def get_stats_positions(self) -> int:
|
||
"""
|
||
Returns the stats processor positions.
|
||
"""
|
||
return await self.db_pool.simple_select_one_onecol(
|
||
table="stats_incremental_position",
|
||
keyvalues={},
|
||
retcol="stream_id",
|
||
desc="stats_incremental_position",
|
||
)
|
||
|
||
async def update_room_state(self, room_id: str, fields: Dict[str, Any]) -> None:
|
||
"""Update the state of a room.
|
||
|
||
fields can contain the following keys with string values:
|
||
* join_rules
|
||
* history_visibility
|
||
* encryption
|
||
* name
|
||
* topic
|
||
* avatar
|
||
* canonical_alias
|
||
* guest_access
|
||
|
||
A is_federatable key can also be included with a boolean value.
|
||
|
||
Args:
|
||
room_id: The room ID to update the state of.
|
||
fields: The fields to update. This can include a partial list of the
|
||
above fields to only update some room information.
|
||
"""
|
||
# Ensure that the values to update are valid, they should be strings and
|
||
# not contain any null bytes.
|
||
#
|
||
# Invalid data gets overwritten with null.
|
||
#
|
||
# Note that a missing value should not be overwritten (it keeps the
|
||
# previous value).
|
||
sentinel = object()
|
||
for col in (
|
||
"join_rules",
|
||
"history_visibility",
|
||
"encryption",
|
||
"name",
|
||
"topic",
|
||
"avatar",
|
||
"canonical_alias",
|
||
"guest_access",
|
||
):
|
||
field = fields.get(col, sentinel)
|
||
if field is not sentinel and (not isinstance(field, str) or "\0" in field):
|
||
fields[col] = None
|
||
|
||
await self.db_pool.simple_upsert(
|
||
table="room_stats_state",
|
||
keyvalues={"room_id": room_id},
|
||
values=fields,
|
||
desc="update_room_state",
|
||
)
|
||
|
||
async def get_statistics_for_subject(
|
||
self, stats_type: str, stats_id: str, start: str, size: int = 100
|
||
) -> List[dict]:
|
||
"""
|
||
Get statistics for a given subject.
|
||
|
||
Args:
|
||
stats_type: The type of subject
|
||
stats_id: The ID of the subject (e.g. room_id or user_id)
|
||
start: Pagination start. Number of entries, not timestamp.
|
||
size: How many entries to return.
|
||
|
||
Returns:
|
||
A list of dicts, where the dict has the keys of
|
||
ABSOLUTE_STATS_FIELDS[stats_type], and "bucket_size" and "end_ts".
|
||
"""
|
||
return await self.db_pool.runInteraction(
|
||
"get_statistics_for_subject",
|
||
self._get_statistics_for_subject_txn,
|
||
stats_type,
|
||
stats_id,
|
||
start,
|
||
size,
|
||
)
|
||
|
||
def _get_statistics_for_subject_txn(
|
||
self, txn, stats_type, stats_id, start, size=100
|
||
):
|
||
"""
|
||
Transaction-bound version of L{get_statistics_for_subject}.
|
||
"""
|
||
|
||
table, id_col = TYPE_TO_TABLE[stats_type]
|
||
selected_columns = list(
|
||
ABSOLUTE_STATS_FIELDS[stats_type] + PER_SLICE_FIELDS[stats_type]
|
||
)
|
||
|
||
slice_list = self.db_pool.simple_select_list_paginate_txn(
|
||
txn,
|
||
table + "_historical",
|
||
"end_ts",
|
||
start,
|
||
size,
|
||
retcols=selected_columns + ["bucket_size", "end_ts"],
|
||
keyvalues={id_col: stats_id},
|
||
order_direction="DESC",
|
||
)
|
||
|
||
return slice_list
|
||
|
||
@cached()
|
||
async def get_earliest_token_for_stats(self, stats_type: str, id: str) -> int:
|
||
"""
|
||
Fetch the "earliest token". This is used by the room stats delta
|
||
processor to ignore deltas that have been processed between the
|
||
start of the background task and any particular room's stats
|
||
being calculated.
|
||
|
||
Returns:
|
||
The earliest token.
|
||
"""
|
||
table, id_col = TYPE_TO_TABLE[stats_type]
|
||
|
||
return await self.db_pool.simple_select_one_onecol(
|
||
"%s_current" % (table,),
|
||
keyvalues={id_col: id},
|
||
retcol="completed_delta_stream_id",
|
||
allow_none=True,
|
||
)
|
||
|
||
async def bulk_update_stats_delta(
|
||
self, ts: int, updates: Dict[str, Dict[str, Dict[str, Counter]]], stream_id: int
|
||
) -> None:
|
||
"""Bulk update stats tables for a given stream_id and updates the stats
|
||
incremental position.
|
||
|
||
Args:
|
||
ts: Current timestamp in ms
|
||
updates: The updates to commit as a mapping of
|
||
stats_type -> stats_id -> field -> delta.
|
||
stream_id: Current position.
|
||
"""
|
||
|
||
def _bulk_update_stats_delta_txn(txn):
|
||
for stats_type, stats_updates in updates.items():
|
||
for stats_id, fields in stats_updates.items():
|
||
logger.debug(
|
||
"Updating %s stats for %s: %s", stats_type, stats_id, fields
|
||
)
|
||
self._update_stats_delta_txn(
|
||
txn,
|
||
ts=ts,
|
||
stats_type=stats_type,
|
||
stats_id=stats_id,
|
||
fields=fields,
|
||
complete_with_stream_id=stream_id,
|
||
)
|
||
|
||
self.db_pool.simple_update_one_txn(
|
||
txn,
|
||
table="stats_incremental_position",
|
||
keyvalues={},
|
||
updatevalues={"stream_id": stream_id},
|
||
)
|
||
|
||
await self.db_pool.runInteraction(
|
||
"bulk_update_stats_delta", _bulk_update_stats_delta_txn
|
||
)
|
||
|
||
async def update_stats_delta(
|
||
self,
|
||
ts: int,
|
||
stats_type: str,
|
||
stats_id: str,
|
||
fields: Dict[str, int],
|
||
complete_with_stream_id: Optional[int],
|
||
absolute_field_overrides: Optional[Dict[str, int]] = None,
|
||
) -> None:
|
||
"""
|
||
Updates the statistics for a subject, with a delta (difference/relative
|
||
change).
|
||
|
||
Args:
|
||
ts: timestamp of the change
|
||
stats_type: "room" or "user" – the kind of subject
|
||
stats_id: the subject's ID (room ID or user ID)
|
||
fields: Deltas of stats values.
|
||
complete_with_stream_id:
|
||
If supplied, converts an incomplete row into a complete row,
|
||
with the supplied stream_id marked as the stream_id where the
|
||
row was completed.
|
||
absolute_field_overrides: Current stats values (i.e. not deltas) of
|
||
absolute fields. Does not work with per-slice fields.
|
||
"""
|
||
|
||
await self.db_pool.runInteraction(
|
||
"update_stats_delta",
|
||
self._update_stats_delta_txn,
|
||
ts,
|
||
stats_type,
|
||
stats_id,
|
||
fields,
|
||
complete_with_stream_id=complete_with_stream_id,
|
||
absolute_field_overrides=absolute_field_overrides,
|
||
)
|
||
|
||
def _update_stats_delta_txn(
|
||
self,
|
||
txn,
|
||
ts,
|
||
stats_type,
|
||
stats_id,
|
||
fields,
|
||
complete_with_stream_id,
|
||
absolute_field_overrides=None,
|
||
):
|
||
if absolute_field_overrides is None:
|
||
absolute_field_overrides = {}
|
||
|
||
table, id_col = TYPE_TO_TABLE[stats_type]
|
||
|
||
quantised_ts = self.quantise_stats_time(int(ts))
|
||
end_ts = quantised_ts + self.stats_bucket_size
|
||
|
||
# Lets be paranoid and check that all the given field names are known
|
||
abs_field_names = ABSOLUTE_STATS_FIELDS[stats_type]
|
||
slice_field_names = PER_SLICE_FIELDS[stats_type]
|
||
for field in chain(fields.keys(), absolute_field_overrides.keys()):
|
||
if field not in abs_field_names and field not in slice_field_names:
|
||
# guard against potential SQL injection dodginess
|
||
raise ValueError(
|
||
"%s is not a recognised field"
|
||
" for stats type %s" % (field, stats_type)
|
||
)
|
||
|
||
# Per slice fields do not get added to the _current table
|
||
|
||
# This calculates the deltas (`field = field + ?` values)
|
||
# for absolute fields,
|
||
# * defaulting to 0 if not specified
|
||
# (required for the INSERT part of upserting to work)
|
||
# * omitting overrides specified in `absolute_field_overrides`
|
||
deltas_of_absolute_fields = {
|
||
key: fields.get(key, 0)
|
||
for key in abs_field_names
|
||
if key not in absolute_field_overrides
|
||
}
|
||
|
||
# Keep the delta stream ID field up to date
|
||
absolute_field_overrides = absolute_field_overrides.copy()
|
||
absolute_field_overrides["completed_delta_stream_id"] = complete_with_stream_id
|
||
|
||
# first upsert the `_current` table
|
||
self._upsert_with_additive_relatives_txn(
|
||
txn=txn,
|
||
table=table + "_current",
|
||
keyvalues={id_col: stats_id},
|
||
absolutes=absolute_field_overrides,
|
||
additive_relatives=deltas_of_absolute_fields,
|
||
)
|
||
|
||
per_slice_additive_relatives = {
|
||
key: fields.get(key, 0) for key in slice_field_names
|
||
}
|
||
self._upsert_copy_from_table_with_additive_relatives_txn(
|
||
txn=txn,
|
||
into_table=table + "_historical",
|
||
keyvalues={id_col: stats_id},
|
||
extra_dst_insvalues={"bucket_size": self.stats_bucket_size},
|
||
extra_dst_keyvalues={"end_ts": end_ts},
|
||
additive_relatives=per_slice_additive_relatives,
|
||
src_table=table + "_current",
|
||
copy_columns=abs_field_names,
|
||
)
|
||
|
||
def _upsert_with_additive_relatives_txn(
|
||
self, txn, table, keyvalues, absolutes, additive_relatives
|
||
):
|
||
"""Used to update values in the stats tables.
|
||
|
||
This is basically a slightly convoluted upsert that *adds* to any
|
||
existing rows.
|
||
|
||
Args:
|
||
txn
|
||
table (str): Table name
|
||
keyvalues (dict[str, any]): Row-identifying key values
|
||
absolutes (dict[str, any]): Absolute (set) fields
|
||
additive_relatives (dict[str, int]): Fields that will be added onto
|
||
if existing row present.
|
||
"""
|
||
if self.database_engine.can_native_upsert:
|
||
absolute_updates = [
|
||
"%(field)s = EXCLUDED.%(field)s" % {"field": field}
|
||
for field in absolutes.keys()
|
||
]
|
||
|
||
relative_updates = [
|
||
"%(field)s = EXCLUDED.%(field)s + %(table)s.%(field)s"
|
||
% {"table": table, "field": field}
|
||
for field in additive_relatives.keys()
|
||
]
|
||
|
||
insert_cols = []
|
||
qargs = []
|
||
|
||
for (key, val) in chain(
|
||
keyvalues.items(), absolutes.items(), additive_relatives.items()
|
||
):
|
||
insert_cols.append(key)
|
||
qargs.append(val)
|
||
|
||
sql = """
|
||
INSERT INTO %(table)s (%(insert_cols_cs)s)
|
||
VALUES (%(insert_vals_qs)s)
|
||
ON CONFLICT (%(key_columns)s) DO UPDATE SET %(updates)s
|
||
""" % {
|
||
"table": table,
|
||
"insert_cols_cs": ", ".join(insert_cols),
|
||
"insert_vals_qs": ", ".join(
|
||
["?"] * (len(keyvalues) + len(absolutes) + len(additive_relatives))
|
||
),
|
||
"key_columns": ", ".join(keyvalues),
|
||
"updates": ", ".join(chain(absolute_updates, relative_updates)),
|
||
}
|
||
|
||
txn.execute(sql, qargs)
|
||
else:
|
||
self.database_engine.lock_table(txn, table)
|
||
retcols = list(chain(absolutes.keys(), additive_relatives.keys()))
|
||
current_row = self.db_pool.simple_select_one_txn(
|
||
txn, table, keyvalues, retcols, allow_none=True
|
||
)
|
||
if current_row is None:
|
||
merged_dict = {**keyvalues, **absolutes, **additive_relatives}
|
||
self.db_pool.simple_insert_txn(txn, table, merged_dict)
|
||
else:
|
||
for (key, val) in additive_relatives.items():
|
||
current_row[key] += val
|
||
current_row.update(absolutes)
|
||
self.db_pool.simple_update_one_txn(txn, table, keyvalues, current_row)
|
||
|
||
def _upsert_copy_from_table_with_additive_relatives_txn(
|
||
self,
|
||
txn,
|
||
into_table,
|
||
keyvalues,
|
||
extra_dst_keyvalues,
|
||
extra_dst_insvalues,
|
||
additive_relatives,
|
||
src_table,
|
||
copy_columns,
|
||
):
|
||
"""Updates the historic stats table with latest updates.
|
||
|
||
This involves copying "absolute" fields from the `_current` table, and
|
||
adding relative fields to any existing values.
|
||
|
||
Args:
|
||
txn: Transaction
|
||
into_table (str): The destination table to UPSERT the row into
|
||
keyvalues (dict[str, any]): Row-identifying key values
|
||
extra_dst_keyvalues (dict[str, any]): Additional keyvalues
|
||
for `into_table`.
|
||
extra_dst_insvalues (dict[str, any]): Additional values to insert
|
||
on new row creation for `into_table`.
|
||
additive_relatives (dict[str, any]): Fields that will be added onto
|
||
if existing row present. (Must be disjoint from copy_columns.)
|
||
src_table (str): The source table to copy from
|
||
copy_columns (iterable[str]): The list of columns to copy
|
||
"""
|
||
if self.database_engine.can_native_upsert:
|
||
ins_columns = chain(
|
||
keyvalues,
|
||
copy_columns,
|
||
additive_relatives,
|
||
extra_dst_keyvalues,
|
||
extra_dst_insvalues,
|
||
)
|
||
sel_exprs = chain(
|
||
keyvalues,
|
||
copy_columns,
|
||
(
|
||
"?"
|
||
for _ in chain(
|
||
additive_relatives, extra_dst_keyvalues, extra_dst_insvalues
|
||
)
|
||
),
|
||
)
|
||
keyvalues_where = ("%s = ?" % f for f in keyvalues)
|
||
|
||
sets_cc = ("%s = EXCLUDED.%s" % (f, f) for f in copy_columns)
|
||
sets_ar = (
|
||
"%s = EXCLUDED.%s + %s.%s" % (f, f, into_table, f)
|
||
for f in additive_relatives
|
||
)
|
||
|
||
sql = """
|
||
INSERT INTO %(into_table)s (%(ins_columns)s)
|
||
SELECT %(sel_exprs)s
|
||
FROM %(src_table)s
|
||
WHERE %(keyvalues_where)s
|
||
ON CONFLICT (%(keyvalues)s)
|
||
DO UPDATE SET %(sets)s
|
||
""" % {
|
||
"into_table": into_table,
|
||
"ins_columns": ", ".join(ins_columns),
|
||
"sel_exprs": ", ".join(sel_exprs),
|
||
"keyvalues_where": " AND ".join(keyvalues_where),
|
||
"src_table": src_table,
|
||
"keyvalues": ", ".join(
|
||
chain(keyvalues.keys(), extra_dst_keyvalues.keys())
|
||
),
|
||
"sets": ", ".join(chain(sets_cc, sets_ar)),
|
||
}
|
||
|
||
qargs = list(
|
||
chain(
|
||
additive_relatives.values(),
|
||
extra_dst_keyvalues.values(),
|
||
extra_dst_insvalues.values(),
|
||
keyvalues.values(),
|
||
)
|
||
)
|
||
txn.execute(sql, qargs)
|
||
else:
|
||
self.database_engine.lock_table(txn, into_table)
|
||
src_row = self.db_pool.simple_select_one_txn(
|
||
txn, src_table, keyvalues, copy_columns
|
||
)
|
||
all_dest_keyvalues = {**keyvalues, **extra_dst_keyvalues}
|
||
dest_current_row = self.db_pool.simple_select_one_txn(
|
||
txn,
|
||
into_table,
|
||
keyvalues=all_dest_keyvalues,
|
||
retcols=list(chain(additive_relatives.keys(), copy_columns)),
|
||
allow_none=True,
|
||
)
|
||
|
||
if dest_current_row is None:
|
||
merged_dict = {
|
||
**keyvalues,
|
||
**extra_dst_keyvalues,
|
||
**extra_dst_insvalues,
|
||
**src_row,
|
||
**additive_relatives,
|
||
}
|
||
self.db_pool.simple_insert_txn(txn, into_table, merged_dict)
|
||
else:
|
||
for (key, val) in additive_relatives.items():
|
||
src_row[key] = dest_current_row[key] + val
|
||
self.db_pool.simple_update_txn(
|
||
txn, into_table, all_dest_keyvalues, src_row
|
||
)
|
||
|
||
async def get_changes_room_total_events_and_bytes(
|
||
self, min_pos: int, max_pos: int
|
||
) -> Dict[str, Dict[str, int]]:
|
||
"""Fetches the counts of events in the given range of stream IDs.
|
||
|
||
Args:
|
||
min_pos
|
||
max_pos
|
||
|
||
Returns:
|
||
Mapping of room ID to field changes.
|
||
"""
|
||
|
||
return await self.db_pool.runInteraction(
|
||
"stats_incremental_total_events_and_bytes",
|
||
self.get_changes_room_total_events_and_bytes_txn,
|
||
min_pos,
|
||
max_pos,
|
||
)
|
||
|
||
def get_changes_room_total_events_and_bytes_txn(self, txn, low_pos, high_pos):
|
||
"""Gets the total_events and total_event_bytes counts for rooms and
|
||
senders, in a range of stream_orderings (including backfilled events).
|
||
|
||
Args:
|
||
txn
|
||
low_pos (int): Low stream ordering
|
||
high_pos (int): High stream ordering
|
||
|
||
Returns:
|
||
tuple[dict[str, dict[str, int]], dict[str, dict[str, int]]]: The
|
||
room and user deltas for total_events/total_event_bytes in the
|
||
format of `stats_id` -> fields
|
||
"""
|
||
|
||
if low_pos >= high_pos:
|
||
# nothing to do here.
|
||
return {}, {}
|
||
|
||
if isinstance(self.database_engine, PostgresEngine):
|
||
new_bytes_expression = "OCTET_LENGTH(json)"
|
||
else:
|
||
new_bytes_expression = "LENGTH(CAST(json AS BLOB))"
|
||
|
||
sql = """
|
||
SELECT events.room_id, COUNT(*) AS new_events, SUM(%s) AS new_bytes
|
||
FROM events INNER JOIN event_json USING (event_id)
|
||
WHERE (? < stream_ordering AND stream_ordering <= ?)
|
||
OR (? <= stream_ordering AND stream_ordering <= ?)
|
||
GROUP BY events.room_id
|
||
""" % (
|
||
new_bytes_expression,
|
||
)
|
||
|
||
txn.execute(sql, (low_pos, high_pos, -high_pos, -low_pos))
|
||
|
||
room_deltas = {
|
||
room_id: {"total_events": new_events, "total_event_bytes": new_bytes}
|
||
for room_id, new_events, new_bytes in txn
|
||
}
|
||
|
||
sql = """
|
||
SELECT events.sender, COUNT(*) AS new_events, SUM(%s) AS new_bytes
|
||
FROM events INNER JOIN event_json USING (event_id)
|
||
WHERE (? < stream_ordering AND stream_ordering <= ?)
|
||
OR (? <= stream_ordering AND stream_ordering <= ?)
|
||
GROUP BY events.sender
|
||
""" % (
|
||
new_bytes_expression,
|
||
)
|
||
|
||
txn.execute(sql, (low_pos, high_pos, -high_pos, -low_pos))
|
||
|
||
user_deltas = {
|
||
user_id: {"total_events": new_events, "total_event_bytes": new_bytes}
|
||
for user_id, new_events, new_bytes in txn
|
||
if self.hs.is_mine_id(user_id)
|
||
}
|
||
|
||
return room_deltas, user_deltas
|
||
|
||
async def _calculate_and_set_initial_state_for_room(
|
||
self, room_id: str
|
||
) -> Tuple[dict, dict, int]:
|
||
"""Calculate and insert an entry into room_stats_current.
|
||
|
||
Args:
|
||
room_id: The room ID under calculation.
|
||
|
||
Returns:
|
||
A tuple of room state, membership counts and stream position.
|
||
"""
|
||
|
||
def _fetch_current_state_stats(txn):
|
||
pos = self.get_room_max_stream_ordering()
|
||
|
||
rows = self.db_pool.simple_select_many_txn(
|
||
txn,
|
||
table="current_state_events",
|
||
column="type",
|
||
iterable=[
|
||
EventTypes.Create,
|
||
EventTypes.JoinRules,
|
||
EventTypes.RoomHistoryVisibility,
|
||
EventTypes.RoomEncryption,
|
||
EventTypes.Name,
|
||
EventTypes.Topic,
|
||
EventTypes.RoomAvatar,
|
||
EventTypes.CanonicalAlias,
|
||
],
|
||
keyvalues={"room_id": room_id, "state_key": ""},
|
||
retcols=["event_id"],
|
||
)
|
||
|
||
event_ids = [row["event_id"] for row in rows]
|
||
|
||
txn.execute(
|
||
"""
|
||
SELECT membership, count(*) FROM current_state_events
|
||
WHERE room_id = ? AND type = 'm.room.member'
|
||
GROUP BY membership
|
||
""",
|
||
(room_id,),
|
||
)
|
||
membership_counts = {membership: cnt for membership, cnt in txn}
|
||
|
||
txn.execute(
|
||
"""
|
||
SELECT COALESCE(count(*), 0) FROM current_state_events
|
||
WHERE room_id = ?
|
||
""",
|
||
(room_id,),
|
||
)
|
||
|
||
(current_state_events_count,) = txn.fetchone()
|
||
|
||
users_in_room = self.get_users_in_room_txn(txn, room_id)
|
||
|
||
return (
|
||
event_ids,
|
||
membership_counts,
|
||
current_state_events_count,
|
||
users_in_room,
|
||
pos,
|
||
)
|
||
|
||
(
|
||
event_ids,
|
||
membership_counts,
|
||
current_state_events_count,
|
||
users_in_room,
|
||
pos,
|
||
) = await self.db_pool.runInteraction(
|
||
"get_initial_state_for_room", _fetch_current_state_stats
|
||
)
|
||
|
||
state_event_map = await self.get_events(event_ids, get_prev_content=False)
|
||
|
||
room_state = {
|
||
"join_rules": None,
|
||
"history_visibility": None,
|
||
"encryption": None,
|
||
"name": None,
|
||
"topic": None,
|
||
"avatar": None,
|
||
"canonical_alias": None,
|
||
"is_federatable": True,
|
||
}
|
||
|
||
for event in state_event_map.values():
|
||
if event.type == EventTypes.JoinRules:
|
||
room_state["join_rules"] = event.content.get("join_rule")
|
||
elif event.type == EventTypes.RoomHistoryVisibility:
|
||
room_state["history_visibility"] = event.content.get(
|
||
"history_visibility"
|
||
)
|
||
elif event.type == EventTypes.RoomEncryption:
|
||
room_state["encryption"] = event.content.get("algorithm")
|
||
elif event.type == EventTypes.Name:
|
||
room_state["name"] = event.content.get("name")
|
||
elif event.type == EventTypes.Topic:
|
||
room_state["topic"] = event.content.get("topic")
|
||
elif event.type == EventTypes.RoomAvatar:
|
||
room_state["avatar"] = event.content.get("url")
|
||
elif event.type == EventTypes.CanonicalAlias:
|
||
room_state["canonical_alias"] = event.content.get("alias")
|
||
elif event.type == EventTypes.Create:
|
||
room_state["is_federatable"] = (
|
||
event.content.get("m.federate", True) is True
|
||
)
|
||
|
||
await self.update_room_state(room_id, room_state)
|
||
|
||
local_users_in_room = [u for u in users_in_room if self.hs.is_mine_id(u)]
|
||
|
||
await self.update_stats_delta(
|
||
ts=self.clock.time_msec(),
|
||
stats_type="room",
|
||
stats_id=room_id,
|
||
fields={},
|
||
complete_with_stream_id=pos,
|
||
absolute_field_overrides={
|
||
"current_state_events": current_state_events_count,
|
||
"joined_members": membership_counts.get(Membership.JOIN, 0),
|
||
"invited_members": membership_counts.get(Membership.INVITE, 0),
|
||
"left_members": membership_counts.get(Membership.LEAVE, 0),
|
||
"banned_members": membership_counts.get(Membership.BAN, 0),
|
||
"local_users_in_room": len(local_users_in_room),
|
||
},
|
||
)
|
||
|
||
async def _calculate_and_set_initial_state_for_user(self, user_id):
|
||
def _calculate_and_set_initial_state_for_user_txn(txn):
|
||
pos = self._get_max_stream_id_in_current_state_deltas_txn(txn)
|
||
|
||
txn.execute(
|
||
"""
|
||
SELECT COUNT(distinct room_id) FROM current_state_events
|
||
WHERE type = 'm.room.member' AND state_key = ?
|
||
AND membership = 'join'
|
||
""",
|
||
(user_id,),
|
||
)
|
||
(count,) = txn.fetchone()
|
||
return count, pos
|
||
|
||
joined_rooms, pos = await self.db_pool.runInteraction(
|
||
"calculate_and_set_initial_state_for_user",
|
||
_calculate_and_set_initial_state_for_user_txn,
|
||
)
|
||
|
||
await self.update_stats_delta(
|
||
ts=self.clock.time_msec(),
|
||
stats_type="user",
|
||
stats_id=user_id,
|
||
fields={},
|
||
complete_with_stream_id=pos,
|
||
absolute_field_overrides={"joined_rooms": joined_rooms},
|
||
)
|