mirror of
https://git.anonymousland.org/anonymousland/synapse.git
synced 2024-12-27 06:59:25 -05:00
294 lines
9.2 KiB
Python
294 lines
9.2 KiB
Python
# -*- coding: utf-8 -*-
|
|
# Copyright 2014-2016 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.
|
|
|
|
import logging
|
|
from collections import namedtuple
|
|
|
|
import six
|
|
|
|
from canonicaljson import encode_canonical_json
|
|
|
|
from twisted.internet import defer
|
|
|
|
from synapse.metrics.background_process_metrics import run_as_background_process
|
|
from synapse.util.caches.expiringcache import ExpiringCache
|
|
|
|
from ._base import SQLBaseStore, db_to_json
|
|
|
|
# py2 sqlite has buffer hardcoded as only binary type, so we must use it,
|
|
# despite being deprecated and removed in favor of memoryview
|
|
if six.PY2:
|
|
db_binary_type = six.moves.builtins.buffer
|
|
else:
|
|
db_binary_type = memoryview
|
|
|
|
logger = logging.getLogger(__name__)
|
|
|
|
|
|
_TransactionRow = namedtuple(
|
|
"_TransactionRow",
|
|
("id", "transaction_id", "destination", "ts", "response_code", "response_json"),
|
|
)
|
|
|
|
_UpdateTransactionRow = namedtuple(
|
|
"_TransactionRow", ("response_code", "response_json")
|
|
)
|
|
|
|
SENTINEL = object()
|
|
|
|
|
|
class TransactionStore(SQLBaseStore):
|
|
"""A collection of queries for handling PDUs.
|
|
"""
|
|
|
|
def __init__(self, db_conn, hs):
|
|
super(TransactionStore, self).__init__(db_conn, hs)
|
|
|
|
self._clock.looping_call(self._start_cleanup_transactions, 30 * 60 * 1000)
|
|
|
|
self._destination_retry_cache = ExpiringCache(
|
|
cache_name="get_destination_retry_timings",
|
|
clock=self._clock,
|
|
expiry_ms=5 * 60 * 1000,
|
|
)
|
|
|
|
def get_received_txn_response(self, transaction_id, origin):
|
|
"""For an incoming transaction from a given origin, check if we have
|
|
already responded to it. If so, return the response code and response
|
|
body (as a dict).
|
|
|
|
Args:
|
|
transaction_id (str)
|
|
origin(str)
|
|
|
|
Returns:
|
|
tuple: None if we have not previously responded to
|
|
this transaction or a 2-tuple of (int, dict)
|
|
"""
|
|
|
|
return self.runInteraction(
|
|
"get_received_txn_response",
|
|
self._get_received_txn_response,
|
|
transaction_id,
|
|
origin,
|
|
)
|
|
|
|
def _get_received_txn_response(self, txn, transaction_id, origin):
|
|
result = self._simple_select_one_txn(
|
|
txn,
|
|
table="received_transactions",
|
|
keyvalues={"transaction_id": transaction_id, "origin": origin},
|
|
retcols=(
|
|
"transaction_id",
|
|
"origin",
|
|
"ts",
|
|
"response_code",
|
|
"response_json",
|
|
"has_been_referenced",
|
|
),
|
|
allow_none=True,
|
|
)
|
|
|
|
if result and result["response_code"]:
|
|
return result["response_code"], db_to_json(result["response_json"])
|
|
|
|
else:
|
|
return None
|
|
|
|
def set_received_txn_response(self, transaction_id, origin, code, response_dict):
|
|
"""Persist the response we returened for an incoming transaction, and
|
|
should return for subsequent transactions with the same transaction_id
|
|
and origin.
|
|
|
|
Args:
|
|
txn
|
|
transaction_id (str)
|
|
origin (str)
|
|
code (int)
|
|
response_json (str)
|
|
"""
|
|
|
|
return self._simple_insert(
|
|
table="received_transactions",
|
|
values={
|
|
"transaction_id": transaction_id,
|
|
"origin": origin,
|
|
"response_code": code,
|
|
"response_json": db_binary_type(encode_canonical_json(response_dict)),
|
|
"ts": self._clock.time_msec(),
|
|
},
|
|
or_ignore=True,
|
|
desc="set_received_txn_response",
|
|
)
|
|
|
|
def prep_send_transaction(self, transaction_id, destination, origin_server_ts):
|
|
"""Persists an outgoing transaction and calculates the values for the
|
|
previous transaction id list.
|
|
|
|
This should be called before sending the transaction so that it has the
|
|
correct value for the `prev_ids` key.
|
|
|
|
Args:
|
|
transaction_id (str)
|
|
destination (str)
|
|
origin_server_ts (int)
|
|
|
|
Returns:
|
|
list: A list of previous transaction ids.
|
|
"""
|
|
return defer.succeed([])
|
|
|
|
def delivered_txn(self, transaction_id, destination, code, response_dict):
|
|
"""Persists the response for an outgoing transaction.
|
|
|
|
Args:
|
|
transaction_id (str)
|
|
destination (str)
|
|
code (int)
|
|
response_json (str)
|
|
"""
|
|
pass
|
|
|
|
@defer.inlineCallbacks
|
|
def get_destination_retry_timings(self, destination):
|
|
"""Gets the current retry timings (if any) for a given destination.
|
|
|
|
Args:
|
|
destination (str)
|
|
|
|
Returns:
|
|
None if not retrying
|
|
Otherwise a dict for the retry scheme
|
|
"""
|
|
|
|
result = self._destination_retry_cache.get(destination, SENTINEL)
|
|
if result is not SENTINEL:
|
|
defer.returnValue(result)
|
|
|
|
result = yield self.runInteraction(
|
|
"get_destination_retry_timings",
|
|
self._get_destination_retry_timings,
|
|
destination,
|
|
)
|
|
|
|
# We don't hugely care about race conditions between getting and
|
|
# invalidating the cache, since we time out fairly quickly anyway.
|
|
self._destination_retry_cache[destination] = result
|
|
defer.returnValue(result)
|
|
|
|
def _get_destination_retry_timings(self, txn, destination):
|
|
result = self._simple_select_one_txn(
|
|
txn,
|
|
table="destinations",
|
|
keyvalues={"destination": destination},
|
|
retcols=("destination", "retry_last_ts", "retry_interval"),
|
|
allow_none=True,
|
|
)
|
|
|
|
if result and result["retry_last_ts"] > 0:
|
|
return result
|
|
else:
|
|
return None
|
|
|
|
def set_destination_retry_timings(self, destination, retry_last_ts, retry_interval):
|
|
"""Sets the current retry timings for a given destination.
|
|
Both timings should be zero if retrying is no longer occuring.
|
|
|
|
Args:
|
|
destination (str)
|
|
retry_last_ts (int) - time of last retry attempt in unix epoch ms
|
|
retry_interval (int) - how long until next retry in ms
|
|
"""
|
|
|
|
self._destination_retry_cache.pop(destination, None)
|
|
return self.runInteraction(
|
|
"set_destination_retry_timings",
|
|
self._set_destination_retry_timings,
|
|
destination,
|
|
retry_last_ts,
|
|
retry_interval,
|
|
)
|
|
|
|
def _set_destination_retry_timings(
|
|
self, txn, destination, retry_last_ts, retry_interval
|
|
):
|
|
self.database_engine.lock_table(txn, "destinations")
|
|
|
|
# We need to be careful here as the data may have changed from under us
|
|
# due to a worker setting the timings.
|
|
|
|
prev_row = self._simple_select_one_txn(
|
|
txn,
|
|
table="destinations",
|
|
keyvalues={"destination": destination},
|
|
retcols=("retry_last_ts", "retry_interval"),
|
|
allow_none=True,
|
|
)
|
|
|
|
if not prev_row:
|
|
self._simple_insert_txn(
|
|
txn,
|
|
table="destinations",
|
|
values={
|
|
"destination": destination,
|
|
"retry_last_ts": retry_last_ts,
|
|
"retry_interval": retry_interval,
|
|
},
|
|
)
|
|
elif retry_interval == 0 or prev_row["retry_interval"] < retry_interval:
|
|
self._simple_update_one_txn(
|
|
txn,
|
|
"destinations",
|
|
keyvalues={"destination": destination},
|
|
updatevalues={
|
|
"retry_last_ts": retry_last_ts,
|
|
"retry_interval": retry_interval,
|
|
},
|
|
)
|
|
|
|
def get_destinations_needing_retry(self):
|
|
"""Get all destinations which are due a retry for sending a transaction.
|
|
|
|
Returns:
|
|
list: A list of dicts
|
|
"""
|
|
|
|
return self.runInteraction(
|
|
"get_destinations_needing_retry", self._get_destinations_needing_retry
|
|
)
|
|
|
|
def _get_destinations_needing_retry(self, txn):
|
|
query = (
|
|
"SELECT * FROM destinations"
|
|
" WHERE retry_last_ts > 0 and retry_next_ts < ?"
|
|
)
|
|
|
|
txn.execute(query, (self._clock.time_msec(),))
|
|
return self.cursor_to_dict(txn)
|
|
|
|
def _start_cleanup_transactions(self):
|
|
return run_as_background_process(
|
|
"cleanup_transactions", self._cleanup_transactions
|
|
)
|
|
|
|
def _cleanup_transactions(self):
|
|
now = self._clock.time_msec()
|
|
month_ago = now - 30 * 24 * 60 * 60 * 1000
|
|
|
|
def _cleanup_transactions_txn(txn):
|
|
txn.execute("DELETE FROM received_transactions WHERE ts < ?", (month_ago,))
|
|
|
|
return self.runInteraction("_cleanup_transactions", _cleanup_transactions_txn)
|