386 lines
12 KiB
Python
386 lines
12 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.
|
|
|
|
from ._base import SQLBaseStore
|
|
from synapse.util.caches.descriptors import cached
|
|
|
|
from twisted.internet import defer, reactor
|
|
|
|
from canonicaljson import encode_canonical_json
|
|
|
|
from collections import namedtuple
|
|
|
|
import itertools
|
|
import logging
|
|
import ujson as json
|
|
|
|
logger = logging.getLogger(__name__)
|
|
|
|
|
|
_TransactionRow = namedtuple(
|
|
"_TransactionRow", (
|
|
"id", "transaction_id", "destination", "ts", "response_code",
|
|
"response_json",
|
|
)
|
|
)
|
|
|
|
_UpdateTransactionRow = namedtuple(
|
|
"_TransactionRow", (
|
|
"response_code", "response_json",
|
|
)
|
|
)
|
|
|
|
|
|
class TransactionStore(SQLBaseStore):
|
|
"""A collection of queries for handling PDUs.
|
|
"""
|
|
|
|
def __init__(self, hs):
|
|
super(TransactionStore, self).__init__(hs)
|
|
|
|
# New transactions that are currently in flights
|
|
self.inflight_transactions = {}
|
|
|
|
# Newly delievered transactions that *weren't* persisted while in flight
|
|
self.new_delivered_transactions = {}
|
|
|
|
# Newly delivered transactions that *were* persisted while in flight
|
|
self.update_delivered_transactions = {}
|
|
|
|
self.last_transaction = {}
|
|
|
|
reactor.addSystemEventTrigger("before", "shutdown", self._persist_in_mem_txns)
|
|
hs.get_clock().looping_call(
|
|
self._persist_in_mem_txns,
|
|
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"], json.loads(str(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": buffer(encode_canonical_json(response_dict)),
|
|
},
|
|
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.
|
|
"""
|
|
|
|
auto_id = self._transaction_id_gen.get_next()
|
|
|
|
txn_row = _TransactionRow(
|
|
id=auto_id,
|
|
transaction_id=transaction_id,
|
|
destination=destination,
|
|
ts=origin_server_ts,
|
|
response_code=0,
|
|
response_json=None,
|
|
)
|
|
|
|
self.inflight_transactions.setdefault(destination, {})[transaction_id] = txn_row
|
|
|
|
prev_txn = self.last_transaction.get(destination)
|
|
if prev_txn:
|
|
return defer.succeed(prev_txn)
|
|
else:
|
|
return self.runInteraction(
|
|
"_get_prevs_txn",
|
|
self._get_prevs_txn,
|
|
destination,
|
|
)
|
|
|
|
def _get_prevs_txn(self, txn, destination):
|
|
# First we find out what the prev_txns should be.
|
|
# Since we know that we are only sending one transaction at a time,
|
|
# we can simply take the last one.
|
|
query = (
|
|
"SELECT * FROM sent_transactions"
|
|
" WHERE destination = ?"
|
|
" ORDER BY id DESC LIMIT 1"
|
|
)
|
|
|
|
txn.execute(query, (destination,))
|
|
results = self.cursor_to_dict(txn)
|
|
|
|
prev_txns = [r["transaction_id"] for r in results]
|
|
|
|
return prev_txns
|
|
|
|
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)
|
|
"""
|
|
|
|
txn_row = self.inflight_transactions.get(
|
|
destination, {}
|
|
).pop(transaction_id, None)
|
|
|
|
self.last_transaction[destination] = transaction_id
|
|
|
|
if txn_row:
|
|
d = self.new_delivered_transactions.setdefault(destination, {})
|
|
d[transaction_id] = txn_row._replace(
|
|
response_code=code,
|
|
response_json=None, # For now, don't persist response
|
|
)
|
|
else:
|
|
d = self.update_delivered_transactions.setdefault(destination, {})
|
|
# For now, don't persist response
|
|
d[transaction_id] = _UpdateTransactionRow(code, None)
|
|
|
|
def get_transactions_after(self, transaction_id, destination):
|
|
"""Get all transactions after a given local transaction_id.
|
|
|
|
Args:
|
|
transaction_id (str)
|
|
destination (str)
|
|
|
|
Returns:
|
|
list: A list of dicts
|
|
"""
|
|
return self.runInteraction(
|
|
"get_transactions_after",
|
|
self._get_transactions_after, transaction_id, destination
|
|
)
|
|
|
|
def _get_transactions_after(self, txn, transaction_id, destination):
|
|
query = (
|
|
"SELECT * FROM sent_transactions"
|
|
" WHERE destination = ? AND id >"
|
|
" ("
|
|
" SELECT id FROM sent_transactions"
|
|
" WHERE transaction_id = ? AND destination = ?"
|
|
" )"
|
|
)
|
|
|
|
txn.execute(query, (destination, transaction_id, destination))
|
|
|
|
return self.cursor_to_dict(txn)
|
|
|
|
@cached()
|
|
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
|
|
"""
|
|
return self.runInteraction(
|
|
"get_destination_retry_timings",
|
|
self._get_destination_retry_timings, destination)
|
|
|
|
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
|
|
"""
|
|
|
|
# XXX: we could chose to not bother persisting this if our cache thinks
|
|
# this is a NOOP
|
|
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):
|
|
txn.call_after(self.get_destination_retry_timings.invalidate, (destination,))
|
|
|
|
self._simple_upsert_txn(
|
|
txn,
|
|
"destinations",
|
|
keyvalues={
|
|
"destination": destination,
|
|
},
|
|
values={
|
|
"retry_last_ts": retry_last_ts,
|
|
"retry_interval": retry_interval,
|
|
},
|
|
insertion_values={
|
|
"destination": destination,
|
|
"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)
|
|
|
|
@defer.inlineCallbacks
|
|
def _persist_in_mem_txns(self):
|
|
try:
|
|
inflight = self.inflight_transactions
|
|
new_delivered = self.new_delivered_transactions
|
|
update_delivered = self.update_delivered_transactions
|
|
|
|
self.inflight_transactions = {}
|
|
self.new_delivered_transactions = {}
|
|
self.update_delivered_transactions = {}
|
|
|
|
full_rows = [
|
|
row._asdict()
|
|
for txn_map in itertools.chain(inflight.values(), new_delivered.values())
|
|
for row in txn_map.values()
|
|
]
|
|
|
|
def f(txn):
|
|
if full_rows:
|
|
self._simple_insert_many_txn(
|
|
txn=txn,
|
|
table="sent_transactions",
|
|
values=full_rows
|
|
)
|
|
|
|
for dest, txn_map in update_delivered.items():
|
|
for txn_id, update_row in txn_map.items():
|
|
self._simple_update_one_txn(
|
|
txn,
|
|
table="sent_transactions",
|
|
keyvalues={
|
|
"transaction_id": txn_id,
|
|
"destination": dest,
|
|
},
|
|
updatevalues={
|
|
"response_code": update_row.response_code,
|
|
"response_json": None, # For now, don't persist response
|
|
}
|
|
)
|
|
|
|
if full_rows or update_delivered:
|
|
yield self.runInteraction("_persist_in_mem_txns", f)
|
|
except:
|
|
logger.exception("Failed to persist transactions!")
|