959 lines
32 KiB
Python
959 lines
32 KiB
Python
# -*- coding: utf-8 -*-
|
|
# Copyright 2014, 2015 OpenMarket Ltd
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
# you may not use this file except in compliance with the License.
|
|
# You may obtain a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
# See the License for the specific language governing permissions and
|
|
# limitations under the License.
|
|
from _base import SQLBaseStore, _RollbackButIsFineException
|
|
|
|
from twisted.internet import defer, reactor
|
|
|
|
from synapse.events import FrozenEvent, USE_FROZEN_DICTS
|
|
from synapse.events.utils import prune_event
|
|
|
|
from synapse.util.logcontext import preserve_context_over_deferred
|
|
from synapse.util.logutils import log_function
|
|
from synapse.api.constants import EventTypes
|
|
|
|
from canonicaljson import encode_canonical_json
|
|
from contextlib import contextmanager
|
|
|
|
import logging
|
|
import math
|
|
import ujson as json
|
|
|
|
logger = logging.getLogger(__name__)
|
|
|
|
|
|
def encode_json(json_object):
|
|
if USE_FROZEN_DICTS:
|
|
# ujson doesn't like frozen_dicts
|
|
return encode_canonical_json(json_object)
|
|
else:
|
|
return json.dumps(json_object, ensure_ascii=False)
|
|
|
|
# These values are used in the `enqueus_event` and `_do_fetch` methods to
|
|
# control how we batch/bulk fetch events from the database.
|
|
# The values are plucked out of thing air to make initial sync run faster
|
|
# on jki.re
|
|
# TODO: Make these configurable.
|
|
EVENT_QUEUE_THREADS = 3 # Max number of threads that will fetch events
|
|
EVENT_QUEUE_ITERATIONS = 3 # No. times we block waiting for requests for events
|
|
EVENT_QUEUE_TIMEOUT_S = 0.1 # Timeout when waiting for requests for events
|
|
|
|
|
|
class EventsStore(SQLBaseStore):
|
|
@defer.inlineCallbacks
|
|
def persist_events(self, events_and_contexts, backfilled=False,
|
|
is_new_state=True):
|
|
if not events_and_contexts:
|
|
return
|
|
|
|
if backfilled:
|
|
if not self.min_token_deferred.called:
|
|
yield self.min_token_deferred
|
|
start = self.min_token - 1
|
|
self.min_token -= len(events_and_contexts) + 1
|
|
stream_orderings = range(start, self.min_token, -1)
|
|
|
|
@contextmanager
|
|
def stream_ordering_manager():
|
|
yield stream_orderings
|
|
stream_ordering_manager = stream_ordering_manager()
|
|
else:
|
|
stream_ordering_manager = yield self._stream_id_gen.get_next_mult(
|
|
self, len(events_and_contexts)
|
|
)
|
|
|
|
with stream_ordering_manager as stream_orderings:
|
|
for (event, _), stream in zip(events_and_contexts, stream_orderings):
|
|
event.internal_metadata.stream_ordering = stream
|
|
|
|
chunks = [
|
|
events_and_contexts[x:x+100]
|
|
for x in xrange(0, len(events_and_contexts), 100)
|
|
]
|
|
|
|
for chunk in chunks:
|
|
# We can't easily parallelize these since different chunks
|
|
# might contain the same event. :(
|
|
yield self.runInteraction(
|
|
"persist_events",
|
|
self._persist_events_txn,
|
|
events_and_contexts=chunk,
|
|
backfilled=backfilled,
|
|
is_new_state=is_new_state,
|
|
)
|
|
|
|
@defer.inlineCallbacks
|
|
@log_function
|
|
def persist_event(self, event, context, backfilled=False,
|
|
is_new_state=True, current_state=None):
|
|
stream_ordering = None
|
|
if backfilled:
|
|
if not self.min_token_deferred.called:
|
|
yield self.min_token_deferred
|
|
self.min_token -= 1
|
|
stream_ordering = self.min_token
|
|
|
|
if stream_ordering is None:
|
|
stream_ordering_manager = yield self._stream_id_gen.get_next(self)
|
|
else:
|
|
@contextmanager
|
|
def stream_ordering_manager():
|
|
yield stream_ordering
|
|
stream_ordering_manager = stream_ordering_manager()
|
|
|
|
try:
|
|
with stream_ordering_manager as stream_ordering:
|
|
event.internal_metadata.stream_ordering = stream_ordering
|
|
yield self.runInteraction(
|
|
"persist_event",
|
|
self._persist_event_txn,
|
|
event=event,
|
|
context=context,
|
|
backfilled=backfilled,
|
|
is_new_state=is_new_state,
|
|
current_state=current_state,
|
|
)
|
|
except _RollbackButIsFineException:
|
|
pass
|
|
|
|
max_persisted_id = yield self._stream_id_gen.get_max_token(self)
|
|
defer.returnValue((stream_ordering, max_persisted_id))
|
|
|
|
@defer.inlineCallbacks
|
|
def get_event(self, event_id, check_redacted=True,
|
|
get_prev_content=False, allow_rejected=False,
|
|
allow_none=False):
|
|
"""Get an event from the database by event_id.
|
|
|
|
Args:
|
|
event_id (str): The event_id of the event to fetch
|
|
check_redacted (bool): If True, check if event has been redacted
|
|
and redact it.
|
|
get_prev_content (bool): If True and event is a state event,
|
|
include the previous states content in the unsigned field.
|
|
allow_rejected (bool): If True return rejected events.
|
|
allow_none (bool): If True, return None if no event found, if
|
|
False throw an exception.
|
|
|
|
Returns:
|
|
Deferred : A FrozenEvent.
|
|
"""
|
|
events = yield self._get_events(
|
|
[event_id],
|
|
check_redacted=check_redacted,
|
|
get_prev_content=get_prev_content,
|
|
allow_rejected=allow_rejected,
|
|
)
|
|
|
|
if not events and not allow_none:
|
|
raise RuntimeError("Could not find event %s" % (event_id,))
|
|
|
|
defer.returnValue(events[0] if events else None)
|
|
|
|
@log_function
|
|
def _persist_event_txn(self, txn, event, context, backfilled,
|
|
is_new_state=True, current_state=None):
|
|
# We purposefully do this first since if we include a `current_state`
|
|
# key, we *want* to update the `current_state_events` table
|
|
if current_state:
|
|
txn.call_after(self.get_current_state_for_key.invalidate_all)
|
|
txn.call_after(self.get_rooms_for_user.invalidate_all)
|
|
txn.call_after(self.get_users_in_room.invalidate, (event.room_id,))
|
|
txn.call_after(self.get_joined_hosts_for_room.invalidate, (event.room_id,))
|
|
txn.call_after(self.get_room_name_and_aliases, event.room_id)
|
|
|
|
self._simple_delete_txn(
|
|
txn,
|
|
table="current_state_events",
|
|
keyvalues={"room_id": event.room_id},
|
|
)
|
|
|
|
for s in current_state:
|
|
self._simple_insert_txn(
|
|
txn,
|
|
"current_state_events",
|
|
{
|
|
"event_id": s.event_id,
|
|
"room_id": s.room_id,
|
|
"type": s.type,
|
|
"state_key": s.state_key,
|
|
}
|
|
)
|
|
|
|
return self._persist_events_txn(
|
|
txn,
|
|
[(event, context)],
|
|
backfilled=backfilled,
|
|
is_new_state=is_new_state,
|
|
)
|
|
|
|
@log_function
|
|
def _persist_events_txn(self, txn, events_and_contexts, backfilled,
|
|
is_new_state=True):
|
|
|
|
# Remove the any existing cache entries for the event_ids
|
|
for event, _ in events_and_contexts:
|
|
txn.call_after(self._invalidate_get_event_cache, event.event_id)
|
|
|
|
depth_updates = {}
|
|
for event, _ in events_and_contexts:
|
|
if event.internal_metadata.is_outlier():
|
|
continue
|
|
depth_updates[event.room_id] = max(
|
|
event.depth, depth_updates.get(event.room_id, event.depth)
|
|
)
|
|
|
|
for room_id, depth in depth_updates.items():
|
|
self._update_min_depth_for_room_txn(txn, room_id, depth)
|
|
|
|
txn.execute(
|
|
"SELECT event_id, outlier FROM events WHERE event_id in (%s)" % (
|
|
",".join(["?"] * len(events_and_contexts)),
|
|
),
|
|
[event.event_id for event, _ in events_and_contexts]
|
|
)
|
|
have_persisted = {
|
|
event_id: outlier
|
|
for event_id, outlier in txn.fetchall()
|
|
}
|
|
|
|
event_map = {}
|
|
to_remove = set()
|
|
for event, context in events_and_contexts:
|
|
# Handle the case of the list including the same event multiple
|
|
# times. The tricky thing here is when they differ by whether
|
|
# they are an outlier.
|
|
if event.event_id in event_map:
|
|
other = event_map[event.event_id]
|
|
|
|
if not other.internal_metadata.is_outlier():
|
|
to_remove.add(event)
|
|
continue
|
|
elif not event.internal_metadata.is_outlier():
|
|
to_remove.add(event)
|
|
continue
|
|
else:
|
|
to_remove.add(other)
|
|
|
|
event_map[event.event_id] = event
|
|
|
|
if event.event_id not in have_persisted:
|
|
continue
|
|
|
|
to_remove.add(event)
|
|
|
|
outlier_persisted = have_persisted[event.event_id]
|
|
if not event.internal_metadata.is_outlier() and outlier_persisted:
|
|
self._store_state_groups_txn(
|
|
txn, event, context,
|
|
)
|
|
|
|
metadata_json = encode_json(
|
|
event.internal_metadata.get_dict()
|
|
).decode("UTF-8")
|
|
|
|
sql = (
|
|
"UPDATE event_json SET internal_metadata = ?"
|
|
" WHERE event_id = ?"
|
|
)
|
|
txn.execute(
|
|
sql,
|
|
(metadata_json, event.event_id,)
|
|
)
|
|
|
|
sql = (
|
|
"UPDATE events SET outlier = ?"
|
|
" WHERE event_id = ?"
|
|
)
|
|
txn.execute(
|
|
sql,
|
|
(False, event.event_id,)
|
|
)
|
|
|
|
self._update_extremeties(txn, [event])
|
|
|
|
events_and_contexts = filter(
|
|
lambda ec: ec[0] not in to_remove,
|
|
events_and_contexts
|
|
)
|
|
|
|
if not events_and_contexts:
|
|
return
|
|
|
|
self._store_mult_state_groups_txn(txn, [
|
|
(event, context)
|
|
for event, context in events_and_contexts
|
|
if not event.internal_metadata.is_outlier()
|
|
])
|
|
|
|
self._handle_mult_prev_events(
|
|
txn,
|
|
events=[event for event, _ in events_and_contexts],
|
|
)
|
|
|
|
for event, _ in events_and_contexts:
|
|
if event.type == EventTypes.Name:
|
|
self._store_room_name_txn(txn, event)
|
|
elif event.type == EventTypes.Topic:
|
|
self._store_room_topic_txn(txn, event)
|
|
elif event.type == EventTypes.Redaction:
|
|
self._store_redaction(txn, event)
|
|
|
|
self._store_room_members_txn(
|
|
txn,
|
|
[
|
|
event
|
|
for event, _ in events_and_contexts
|
|
if event.type == EventTypes.Member
|
|
]
|
|
)
|
|
|
|
def event_dict(event):
|
|
return {
|
|
k: v
|
|
for k, v in event.get_dict().items()
|
|
if k not in [
|
|
"redacted",
|
|
"redacted_because",
|
|
]
|
|
}
|
|
|
|
self._simple_insert_many_txn(
|
|
txn,
|
|
table="event_json",
|
|
values=[
|
|
{
|
|
"event_id": event.event_id,
|
|
"room_id": event.room_id,
|
|
"internal_metadata": encode_json(
|
|
event.internal_metadata.get_dict()
|
|
).decode("UTF-8"),
|
|
"json": encode_json(event_dict(event)).decode("UTF-8"),
|
|
}
|
|
for event, _ in events_and_contexts
|
|
],
|
|
)
|
|
|
|
self._simple_insert_many_txn(
|
|
txn,
|
|
table="events",
|
|
values=[
|
|
{
|
|
"stream_ordering": event.internal_metadata.stream_ordering,
|
|
"topological_ordering": event.depth,
|
|
"depth": event.depth,
|
|
"event_id": event.event_id,
|
|
"room_id": event.room_id,
|
|
"type": event.type,
|
|
"processed": True,
|
|
"outlier": event.internal_metadata.is_outlier(),
|
|
"content": encode_json(event.content).decode("UTF-8"),
|
|
}
|
|
for event, _ in events_and_contexts
|
|
],
|
|
)
|
|
|
|
if context.rejected:
|
|
self._store_rejections_txn(
|
|
txn, event.event_id, context.rejected
|
|
)
|
|
|
|
self._simple_insert_many_txn(
|
|
txn,
|
|
table="event_auth",
|
|
values=[
|
|
{
|
|
"event_id": event.event_id,
|
|
"room_id": event.room_id,
|
|
"auth_id": auth_id,
|
|
}
|
|
for event, _ in events_and_contexts
|
|
for auth_id, _ in event.auth_events
|
|
],
|
|
)
|
|
|
|
self._store_event_reference_hashes_txn(
|
|
txn, [event for event, _ in events_and_contexts]
|
|
)
|
|
|
|
state_events_and_contexts = filter(
|
|
lambda i: i[0].is_state(),
|
|
events_and_contexts,
|
|
)
|
|
|
|
state_values = []
|
|
for event, context in state_events_and_contexts:
|
|
vals = {
|
|
"event_id": event.event_id,
|
|
"room_id": event.room_id,
|
|
"type": event.type,
|
|
"state_key": event.state_key,
|
|
}
|
|
|
|
# TODO: How does this work with backfilling?
|
|
if hasattr(event, "replaces_state"):
|
|
vals["prev_state"] = event.replaces_state
|
|
|
|
state_values.append(vals)
|
|
|
|
self._simple_insert_many_txn(
|
|
txn,
|
|
table="state_events",
|
|
values=state_values,
|
|
)
|
|
|
|
self._simple_insert_many_txn(
|
|
txn,
|
|
table="event_edges",
|
|
values=[
|
|
{
|
|
"event_id": event.event_id,
|
|
"prev_event_id": prev_id,
|
|
"room_id": event.room_id,
|
|
"is_state": True,
|
|
}
|
|
for event, _ in state_events_and_contexts
|
|
for prev_id, _ in event.prev_state
|
|
],
|
|
)
|
|
|
|
if is_new_state:
|
|
for event, _ in state_events_and_contexts:
|
|
if not context.rejected:
|
|
txn.call_after(
|
|
self.get_current_state_for_key.invalidate,
|
|
(event.room_id, event.type, event.state_key,)
|
|
)
|
|
|
|
if event.type in [EventTypes.Name, EventTypes.Aliases]:
|
|
txn.call_after(
|
|
self.get_room_name_and_aliases.invalidate,
|
|
(event.room_id,)
|
|
)
|
|
|
|
self._simple_upsert_txn(
|
|
txn,
|
|
"current_state_events",
|
|
keyvalues={
|
|
"room_id": event.room_id,
|
|
"type": event.type,
|
|
"state_key": event.state_key,
|
|
},
|
|
values={
|
|
"event_id": event.event_id,
|
|
}
|
|
)
|
|
|
|
return
|
|
|
|
def _store_redaction(self, txn, event):
|
|
# invalidate the cache for the redacted event
|
|
txn.call_after(self._invalidate_get_event_cache, event.redacts)
|
|
txn.execute(
|
|
"INSERT INTO redactions (event_id, redacts) VALUES (?,?)",
|
|
(event.event_id, event.redacts)
|
|
)
|
|
|
|
def have_events(self, event_ids):
|
|
"""Given a list of event ids, check if we have already processed them.
|
|
|
|
Returns:
|
|
dict: Has an entry for each event id we already have seen. Maps to
|
|
the rejected reason string if we rejected the event, else maps to
|
|
None.
|
|
"""
|
|
if not event_ids:
|
|
return defer.succeed({})
|
|
|
|
def f(txn):
|
|
sql = (
|
|
"SELECT e.event_id, reason FROM events as e "
|
|
"LEFT JOIN rejections as r ON e.event_id = r.event_id "
|
|
"WHERE e.event_id = ?"
|
|
)
|
|
|
|
res = {}
|
|
for event_id in event_ids:
|
|
txn.execute(sql, (event_id,))
|
|
row = txn.fetchone()
|
|
if row:
|
|
_, rejected = row
|
|
res[event_id] = rejected
|
|
|
|
return res
|
|
|
|
return self.runInteraction(
|
|
"have_events", f,
|
|
)
|
|
|
|
@defer.inlineCallbacks
|
|
def _get_events(self, event_ids, check_redacted=True,
|
|
get_prev_content=False, allow_rejected=False):
|
|
if not event_ids:
|
|
defer.returnValue([])
|
|
|
|
event_map = self._get_events_from_cache(
|
|
event_ids,
|
|
check_redacted=check_redacted,
|
|
get_prev_content=get_prev_content,
|
|
allow_rejected=allow_rejected,
|
|
)
|
|
|
|
missing_events_ids = [e for e in event_ids if e not in event_map]
|
|
|
|
if not missing_events_ids:
|
|
defer.returnValue([
|
|
event_map[e_id] for e_id in event_ids
|
|
if e_id in event_map and event_map[e_id]
|
|
])
|
|
|
|
missing_events = yield self._enqueue_events(
|
|
missing_events_ids,
|
|
check_redacted=check_redacted,
|
|
get_prev_content=get_prev_content,
|
|
allow_rejected=allow_rejected,
|
|
)
|
|
|
|
event_map.update(missing_events)
|
|
|
|
defer.returnValue([
|
|
event_map[e_id] for e_id in event_ids
|
|
if e_id in event_map and event_map[e_id]
|
|
])
|
|
|
|
def _get_events_txn(self, txn, event_ids, check_redacted=True,
|
|
get_prev_content=False, allow_rejected=False):
|
|
if not event_ids:
|
|
return []
|
|
|
|
event_map = self._get_events_from_cache(
|
|
event_ids,
|
|
check_redacted=check_redacted,
|
|
get_prev_content=get_prev_content,
|
|
allow_rejected=allow_rejected,
|
|
)
|
|
|
|
missing_events_ids = [e for e in event_ids if e not in event_map]
|
|
|
|
if not missing_events_ids:
|
|
return [
|
|
event_map[e_id] for e_id in event_ids
|
|
if e_id in event_map and event_map[e_id]
|
|
]
|
|
|
|
missing_events = self._fetch_events_txn(
|
|
txn,
|
|
missing_events_ids,
|
|
check_redacted=check_redacted,
|
|
get_prev_content=get_prev_content,
|
|
allow_rejected=allow_rejected,
|
|
)
|
|
|
|
event_map.update(missing_events)
|
|
|
|
return [
|
|
event_map[e_id] for e_id in event_ids
|
|
if e_id in event_map and event_map[e_id]
|
|
]
|
|
|
|
def _invalidate_get_event_cache(self, event_id):
|
|
for check_redacted in (False, True):
|
|
for get_prev_content in (False, True):
|
|
self._get_event_cache.invalidate(
|
|
(event_id, check_redacted, get_prev_content)
|
|
)
|
|
|
|
def _get_event_txn(self, txn, event_id, check_redacted=True,
|
|
get_prev_content=False, allow_rejected=False):
|
|
|
|
events = self._get_events_txn(
|
|
txn, [event_id],
|
|
check_redacted=check_redacted,
|
|
get_prev_content=get_prev_content,
|
|
allow_rejected=allow_rejected,
|
|
)
|
|
|
|
return events[0] if events else None
|
|
|
|
def _get_events_from_cache(self, events, check_redacted, get_prev_content,
|
|
allow_rejected):
|
|
event_map = {}
|
|
|
|
for event_id in events:
|
|
try:
|
|
ret = self._get_event_cache.get(
|
|
(event_id, check_redacted, get_prev_content,)
|
|
)
|
|
|
|
if allow_rejected or not ret.rejected_reason:
|
|
event_map[event_id] = ret
|
|
else:
|
|
event_map[event_id] = None
|
|
except KeyError:
|
|
pass
|
|
|
|
return event_map
|
|
|
|
def _do_fetch(self, conn):
|
|
"""Takes a database connection and waits for requests for events from
|
|
the _event_fetch_list queue.
|
|
"""
|
|
event_list = []
|
|
i = 0
|
|
while True:
|
|
try:
|
|
with self._event_fetch_lock:
|
|
event_list = self._event_fetch_list
|
|
self._event_fetch_list = []
|
|
|
|
if not event_list:
|
|
single_threaded = self.database_engine.single_threaded
|
|
if single_threaded or i > EVENT_QUEUE_ITERATIONS:
|
|
self._event_fetch_ongoing -= 1
|
|
return
|
|
else:
|
|
self._event_fetch_lock.wait(EVENT_QUEUE_TIMEOUT_S)
|
|
i += 1
|
|
continue
|
|
i = 0
|
|
|
|
event_id_lists = zip(*event_list)[0]
|
|
event_ids = [
|
|
item for sublist in event_id_lists for item in sublist
|
|
]
|
|
|
|
rows = self._new_transaction(
|
|
conn, "do_fetch", [], self._fetch_event_rows, event_ids
|
|
)
|
|
|
|
row_dict = {
|
|
r["event_id"]: r
|
|
for r in rows
|
|
}
|
|
|
|
# We only want to resolve deferreds from the main thread
|
|
def fire(lst, res):
|
|
for ids, d in lst:
|
|
if not d.called:
|
|
try:
|
|
d.callback([
|
|
res[i]
|
|
for i in ids
|
|
if i in res
|
|
])
|
|
except:
|
|
logger.exception("Failed to callback")
|
|
reactor.callFromThread(fire, event_list, row_dict)
|
|
except Exception as e:
|
|
logger.exception("do_fetch")
|
|
|
|
# We only want to resolve deferreds from the main thread
|
|
def fire(evs):
|
|
for _, d in evs:
|
|
if not d.called:
|
|
d.errback(e)
|
|
|
|
if event_list:
|
|
reactor.callFromThread(fire, event_list)
|
|
|
|
@defer.inlineCallbacks
|
|
def _enqueue_events(self, events, check_redacted=True,
|
|
get_prev_content=False, allow_rejected=False):
|
|
"""Fetches events from the database using the _event_fetch_list. This
|
|
allows batch and bulk fetching of events - it allows us to fetch events
|
|
without having to create a new transaction for each request for events.
|
|
"""
|
|
if not events:
|
|
defer.returnValue({})
|
|
|
|
events_d = defer.Deferred()
|
|
with self._event_fetch_lock:
|
|
self._event_fetch_list.append(
|
|
(events, events_d)
|
|
)
|
|
|
|
self._event_fetch_lock.notify()
|
|
|
|
if self._event_fetch_ongoing < EVENT_QUEUE_THREADS:
|
|
self._event_fetch_ongoing += 1
|
|
should_start = True
|
|
else:
|
|
should_start = False
|
|
|
|
if should_start:
|
|
self.runWithConnection(
|
|
self._do_fetch
|
|
)
|
|
|
|
rows = yield preserve_context_over_deferred(events_d)
|
|
|
|
if not allow_rejected:
|
|
rows[:] = [r for r in rows if not r["rejects"]]
|
|
|
|
res = yield defer.gatherResults(
|
|
[
|
|
self._get_event_from_row(
|
|
row["internal_metadata"], row["json"], row["redacts"],
|
|
check_redacted=check_redacted,
|
|
get_prev_content=get_prev_content,
|
|
rejected_reason=row["rejects"],
|
|
)
|
|
for row in rows
|
|
],
|
|
consumeErrors=True
|
|
)
|
|
|
|
defer.returnValue({
|
|
e.event_id: e
|
|
for e in res if e
|
|
})
|
|
|
|
def _fetch_event_rows(self, txn, events):
|
|
rows = []
|
|
N = 200
|
|
for i in range(1 + len(events) / N):
|
|
evs = events[i*N:(i + 1)*N]
|
|
if not evs:
|
|
break
|
|
|
|
sql = (
|
|
"SELECT "
|
|
" e.event_id as event_id, "
|
|
" e.internal_metadata,"
|
|
" e.json,"
|
|
" r.redacts as redacts,"
|
|
" rej.event_id as rejects "
|
|
" FROM event_json as e"
|
|
" LEFT JOIN rejections as rej USING (event_id)"
|
|
" LEFT JOIN redactions as r ON e.event_id = r.redacts"
|
|
" WHERE e.event_id IN (%s)"
|
|
) % (",".join(["?"]*len(evs)),)
|
|
|
|
txn.execute(sql, evs)
|
|
rows.extend(self.cursor_to_dict(txn))
|
|
|
|
return rows
|
|
|
|
def _fetch_events_txn(self, txn, events, check_redacted=True,
|
|
get_prev_content=False, allow_rejected=False):
|
|
if not events:
|
|
return {}
|
|
|
|
rows = self._fetch_event_rows(
|
|
txn, events,
|
|
)
|
|
|
|
if not allow_rejected:
|
|
rows[:] = [r for r in rows if not r["rejects"]]
|
|
|
|
res = [
|
|
self._get_event_from_row_txn(
|
|
txn,
|
|
row["internal_metadata"], row["json"], row["redacts"],
|
|
check_redacted=check_redacted,
|
|
get_prev_content=get_prev_content,
|
|
rejected_reason=row["rejects"],
|
|
)
|
|
for row in rows
|
|
]
|
|
|
|
return {
|
|
r.event_id: r
|
|
for r in res
|
|
}
|
|
|
|
@defer.inlineCallbacks
|
|
def _get_event_from_row(self, internal_metadata, js, redacted,
|
|
check_redacted=True, get_prev_content=False,
|
|
rejected_reason=None):
|
|
d = json.loads(js)
|
|
internal_metadata = json.loads(internal_metadata)
|
|
|
|
if rejected_reason:
|
|
rejected_reason = yield self._simple_select_one_onecol(
|
|
table="rejections",
|
|
keyvalues={"event_id": rejected_reason},
|
|
retcol="reason",
|
|
desc="_get_event_from_row",
|
|
)
|
|
|
|
ev = FrozenEvent(
|
|
d,
|
|
internal_metadata_dict=internal_metadata,
|
|
rejected_reason=rejected_reason,
|
|
)
|
|
|
|
if check_redacted and redacted:
|
|
ev = prune_event(ev)
|
|
|
|
redaction_id = yield self._simple_select_one_onecol(
|
|
table="redactions",
|
|
keyvalues={"redacts": ev.event_id},
|
|
retcol="event_id",
|
|
desc="_get_event_from_row",
|
|
)
|
|
|
|
ev.unsigned["redacted_by"] = redaction_id
|
|
# Get the redaction event.
|
|
|
|
because = yield self.get_event(
|
|
redaction_id,
|
|
check_redacted=False,
|
|
allow_none=True,
|
|
)
|
|
|
|
if because:
|
|
# It's fine to do add the event directly, since get_pdu_json
|
|
# will serialise this field correctly
|
|
ev.unsigned["redacted_because"] = because
|
|
|
|
if get_prev_content and "replaces_state" in ev.unsigned:
|
|
prev = yield self.get_event(
|
|
ev.unsigned["replaces_state"],
|
|
get_prev_content=False,
|
|
allow_none=True,
|
|
)
|
|
if prev:
|
|
ev.unsigned["prev_content"] = prev.get_dict()["content"]
|
|
|
|
self._get_event_cache.prefill(
|
|
(ev.event_id, check_redacted, get_prev_content), ev
|
|
)
|
|
|
|
defer.returnValue(ev)
|
|
|
|
def _get_event_from_row_txn(self, txn, internal_metadata, js, redacted,
|
|
check_redacted=True, get_prev_content=False,
|
|
rejected_reason=None):
|
|
d = json.loads(js)
|
|
internal_metadata = json.loads(internal_metadata)
|
|
|
|
if rejected_reason:
|
|
rejected_reason = self._simple_select_one_onecol_txn(
|
|
txn,
|
|
table="rejections",
|
|
keyvalues={"event_id": rejected_reason},
|
|
retcol="reason",
|
|
)
|
|
|
|
ev = FrozenEvent(
|
|
d,
|
|
internal_metadata_dict=internal_metadata,
|
|
rejected_reason=rejected_reason,
|
|
)
|
|
|
|
if check_redacted and redacted:
|
|
ev = prune_event(ev)
|
|
|
|
redaction_id = self._simple_select_one_onecol_txn(
|
|
txn,
|
|
table="redactions",
|
|
keyvalues={"redacts": ev.event_id},
|
|
retcol="event_id",
|
|
)
|
|
|
|
ev.unsigned["redacted_by"] = redaction_id
|
|
# Get the redaction event.
|
|
|
|
because = self._get_event_txn(
|
|
txn,
|
|
redaction_id,
|
|
check_redacted=False
|
|
)
|
|
|
|
if because:
|
|
ev.unsigned["redacted_because"] = because
|
|
|
|
if get_prev_content and "replaces_state" in ev.unsigned:
|
|
prev = self._get_event_txn(
|
|
txn,
|
|
ev.unsigned["replaces_state"],
|
|
get_prev_content=False,
|
|
)
|
|
if prev:
|
|
ev.unsigned["prev_content"] = prev.get_dict()["content"]
|
|
|
|
self._get_event_cache.prefill(
|
|
(ev.event_id, check_redacted, get_prev_content), ev
|
|
)
|
|
|
|
return ev
|
|
|
|
def _parse_events_txn(self, txn, rows):
|
|
event_ids = [r["event_id"] for r in rows]
|
|
|
|
return self._get_events_txn(txn, event_ids)
|
|
|
|
@defer.inlineCallbacks
|
|
def count_daily_messages(self):
|
|
"""
|
|
Returns an estimate of the number of messages sent in the last day.
|
|
|
|
If it has been significantly less or more than one day since the last
|
|
call to this function, it will return None.
|
|
"""
|
|
def _count_messages(txn):
|
|
now = self.hs.get_clock().time()
|
|
|
|
txn.execute(
|
|
"SELECT reported_stream_token, reported_time FROM stats_reporting"
|
|
)
|
|
last_reported = self.cursor_to_dict(txn)
|
|
|
|
txn.execute(
|
|
"SELECT stream_ordering"
|
|
" FROM events"
|
|
" ORDER BY stream_ordering DESC"
|
|
" LIMIT 1"
|
|
)
|
|
now_reporting = self.cursor_to_dict(txn)
|
|
if not now_reporting:
|
|
return None
|
|
now_reporting = now_reporting[0]["stream_ordering"]
|
|
|
|
txn.execute("DELETE FROM stats_reporting")
|
|
txn.execute(
|
|
"INSERT INTO stats_reporting"
|
|
" (reported_stream_token, reported_time)"
|
|
" VALUES (?, ?)",
|
|
(now_reporting, now,)
|
|
)
|
|
|
|
if not last_reported:
|
|
return None
|
|
|
|
# Close enough to correct for our purposes.
|
|
yesterday = (now - 24 * 60 * 60)
|
|
if math.fabs(yesterday - last_reported[0]["reported_time"]) > 60 * 60:
|
|
return None
|
|
|
|
txn.execute(
|
|
"SELECT COUNT(*) as messages"
|
|
" FROM events NATURAL JOIN event_json"
|
|
" WHERE json like '%m.room.message%'"
|
|
" AND stream_ordering > ?"
|
|
" AND stream_ordering <= ?",
|
|
(
|
|
last_reported[0]["reported_stream_token"],
|
|
now_reporting,
|
|
)
|
|
)
|
|
rows = self.cursor_to_dict(txn)
|
|
if not rows:
|
|
return None
|
|
return rows[0]["messages"]
|
|
|
|
ret = yield self.runInteraction("count_messages", _count_messages)
|
|
defer.returnValue(ret)
|