Remove PDU tables.
Erik Johnston
parent
946d02536b
commit
bfa36a72b9
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@ -32,76 +32,6 @@ import logging
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logger = logging.getLogger(__name__)
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class PduActions(object):
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""" Defines persistence actions that relate to handling PDUs.
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"""
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def __init__(self, datastore):
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self.store = datastore
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@log_function
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def mark_as_processed(self, pdu):
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""" Persist the fact that we have fully processed the given `Pdu`
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Returns:
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Deferred
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"""
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return self.store.mark_pdu_as_processed(pdu.pdu_id, pdu.origin)
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@defer.inlineCallbacks
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@log_function
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def after_transaction(self, transaction_id, destination, origin):
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""" Returns all `Pdu`s that we sent to the given remote home server
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after a given transaction id.
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Returns:
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Deferred: Results in a list of `Pdu`s
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"""
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results = yield self.store.get_pdus_after_transaction(
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transaction_id,
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destination
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)
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defer.returnValue([Pdu.from_pdu_tuple(p) for p in results])
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@defer.inlineCallbacks
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@log_function
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def get_all_pdus_from_context(self, context):
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results = yield self.store.get_all_pdus_from_context(context)
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defer.returnValue([Pdu.from_pdu_tuple(p) for p in results])
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@defer.inlineCallbacks
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@log_function
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def backfill(self, context, pdu_list, limit):
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""" For a given list of PDU id and origins return the proceeding
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`limit` `Pdu`s in the given `context`.
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Returns:
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Deferred: Results in a list of `Pdu`s.
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"""
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results = yield self.store.get_backfill(
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context, pdu_list, limit
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)
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defer.returnValue([Pdu.from_pdu_tuple(p) for p in results])
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@log_function
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def is_new(self, pdu):
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""" When we receive a `Pdu` from a remote home server, we want to
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figure out whether it is `new`, i.e. it is not some historic PDU that
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we haven't seen simply because we haven't backfilled back that far.
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Returns:
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Deferred: Results in a `bool`
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"""
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return self.store.is_pdu_new(
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pdu_id=pdu.pdu_id,
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origin=pdu.origin,
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context=pdu.context,
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depth=pdu.depth
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)
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class TransactionActions(object):
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""" Defines persistence actions that relate to handling Transactions.
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"""
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@ -21,7 +21,7 @@ from twisted.internet import defer
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from .units import Transaction, Pdu, Edu
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from .persistence import PduActions, TransactionActions
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from .persistence import TransactionActions
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from synapse.util.logutils import log_function
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@ -37,7 +37,6 @@ from .registration import RegistrationStore
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from .room import RoomStore
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from .roommember import RoomMemberStore
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from .stream import StreamStore
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from .pdu import StatePduStore, PduStore, PdusTable
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from .transactions import TransactionStore
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from .keys import KeyStore
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from .event_federation import EventFederationStore
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@ -60,7 +59,6 @@ logger = logging.getLogger(__name__)
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SCHEMAS = [
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"transactions",
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"pdu",
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"users",
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"profiles",
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"presence",
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@ -89,7 +87,7 @@ class _RollbackButIsFineException(Exception):
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class DataStore(RoomMemberStore, RoomStore,
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RegistrationStore, StreamStore, ProfileStore, FeedbackStore,
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PresenceStore, PduStore, StatePduStore, TransactionStore,
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PresenceStore, TransactionStore,
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DirectoryStore, KeyStore, StateStore, SignatureStore,
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EventFederationStore, ):
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@ -150,68 +148,12 @@ class DataStore(RoomMemberStore, RoomStore,
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def _persist_pdu_event_txn(self, txn, pdu=None, event=None,
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backfilled=False, stream_ordering=None,
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is_new_state=True):
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if pdu is not None:
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self._persist_event_pdu_txn(txn, pdu)
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if event is not None:
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return self._persist_event_txn(
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txn, event, backfilled, stream_ordering,
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is_new_state=is_new_state,
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)
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def _persist_event_pdu_txn(self, txn, pdu):
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cols = dict(pdu.__dict__)
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unrec_keys = dict(pdu.unrecognized_keys)
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del cols["hashes"]
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del cols["signatures"]
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del cols["content"]
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del cols["prev_pdus"]
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cols["content_json"] = json.dumps(pdu.content)
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unrec_keys.update({
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k: v for k, v in cols.items()
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if k not in PdusTable.fields
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})
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cols["unrecognized_keys"] = json.dumps(unrec_keys)
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cols["ts"] = cols.pop("origin_server_ts")
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logger.debug("Persisting: %s", repr(cols))
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for hash_alg, hash_base64 in pdu.hashes.items():
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hash_bytes = decode_base64(hash_base64)
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self._store_pdu_content_hash_txn(
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txn, pdu.pdu_id, pdu.origin, hash_alg, hash_bytes,
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)
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signatures = pdu.signatures.get(pdu.origin, {})
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for key_id, signature_base64 in signatures.items():
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signature_bytes = decode_base64(signature_base64)
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self._store_pdu_origin_signature_txn(
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txn, pdu.pdu_id, pdu.origin, key_id, signature_bytes,
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)
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for prev_pdu_id, prev_origin, prev_hashes in pdu.prev_pdus:
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for alg, hash_base64 in prev_hashes.items():
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hash_bytes = decode_base64(hash_base64)
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self._store_prev_pdu_hash_txn(
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txn, pdu.pdu_id, pdu.origin, prev_pdu_id, prev_origin, alg,
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hash_bytes
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)
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(ref_alg, ref_hash_bytes) = compute_pdu_event_reference_hash(pdu)
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self._store_pdu_reference_hash_txn(
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txn, pdu.pdu_id, pdu.origin, ref_alg, ref_hash_bytes
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)
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if pdu.is_state:
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self._persist_state_txn(txn, pdu.prev_pdus, cols)
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else:
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self._persist_pdu_txn(txn, pdu.prev_pdus, cols)
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self._update_min_depth_for_context_txn(txn, pdu.context, pdu.depth)
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@log_function
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def _persist_event_txn(self, txn, event, backfilled, stream_ordering=None,
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is_new_state=True):
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@ -1,949 +0,0 @@
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# -*- coding: utf-8 -*-
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# Copyright 2014 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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from twisted.internet import defer
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from ._base import SQLBaseStore, Table, JoinHelper
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from synapse.federation.units import Pdu
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from synapse.util.logutils import log_function
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from syutil.base64util import encode_base64
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from collections import namedtuple
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import logging
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logger = logging.getLogger(__name__)
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class PduStore(SQLBaseStore):
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"""A collection of queries for handling PDUs.
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"""
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def get_pdu(self, pdu_id, origin):
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"""Given a pdu_id and origin, get a PDU.
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Args:
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txn
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pdu_id (str)
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origin (str)
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Returns:
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PduTuple: If the pdu does not exist in the database, returns None
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"""
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return self.runInteraction(
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"get_pdu", self._get_pdu_tuple, pdu_id, origin
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)
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def _get_pdu_tuple(self, txn, pdu_id, origin):
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res = self._get_pdu_tuples(txn, [(pdu_id, origin)])
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return res[0] if res else None
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def _get_pdu_tuples(self, txn, pdu_id_tuples):
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results = []
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for pdu_id, origin in pdu_id_tuples:
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txn.execute(
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PduEdgesTable.select_statement("pdu_id = ? AND origin = ?"),
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(pdu_id, origin)
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)
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edges = [
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(r.prev_pdu_id, r.prev_origin)
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for r in PduEdgesTable.decode_results(txn.fetchall())
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]
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edge_hashes = self._get_prev_pdu_hashes_txn(txn, pdu_id, origin)
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hashes = self._get_pdu_content_hashes_txn(txn, pdu_id, origin)
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signatures = self._get_pdu_origin_signatures_txn(
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txn, pdu_id, origin
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)
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query = (
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"SELECT %(fields)s FROM %(pdus)s as p "
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"LEFT JOIN %(state)s as s "
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"ON p.pdu_id = s.pdu_id AND p.origin = s.origin "
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"WHERE p.pdu_id = ? AND p.origin = ? "
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) % {
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"fields": _pdu_state_joiner.get_fields(
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PdusTable="p", StatePdusTable="s"),
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"pdus": PdusTable.table_name,
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"state": StatePdusTable.table_name,
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}
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txn.execute(query, (pdu_id, origin))
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row = txn.fetchone()
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if row:
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results.append(PduTuple(
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PduEntry(*row), edges, hashes, signatures, edge_hashes
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))
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return results
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def get_current_state_for_context(self, context):
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"""Get a list of PDUs that represent the current state for a given
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context
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Args:
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context (str)
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Returns:
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list: A list of PduTuples
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"""
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return self.runInteraction(
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"get_current_state_for_context",
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self._get_current_state_for_context,
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context
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)
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def _get_current_state_for_context(self, txn, context):
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query = (
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"SELECT pdu_id, origin FROM %s WHERE context = ?"
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% CurrentStateTable.table_name
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)
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logger.debug("get_current_state %s, Args=%s", query, context)
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txn.execute(query, (context,))
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res = txn.fetchall()
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logger.debug("get_current_state %d results", len(res))
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return self._get_pdu_tuples(txn, res)
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def _persist_pdu_txn(self, txn, prev_pdus, cols):
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"""Inserts a (non-state) PDU into the database.
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Args:
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txn,
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prev_pdus (list)
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**cols: The columns to insert into the PdusTable.
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"""
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entry = PdusTable.EntryType(
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**{k: cols.get(k, None) for k in PdusTable.fields}
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)
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txn.execute(PdusTable.insert_statement(), entry)
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self._handle_prev_pdus(
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txn, entry.outlier, entry.pdu_id, entry.origin,
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prev_pdus, entry.context
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)
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def mark_pdu_as_processed(self, pdu_id, pdu_origin):
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"""Mark a received PDU as processed.
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Args:
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txn
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pdu_id (str)
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pdu_origin (str)
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"""
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return self.runInteraction(
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"mark_pdu_as_processed",
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self._mark_as_processed, pdu_id, pdu_origin
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)
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def _mark_as_processed(self, txn, pdu_id, pdu_origin):
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txn.execute("UPDATE %s SET have_processed = 1" % PdusTable.table_name)
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def get_all_pdus_from_context(self, context):
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"""Get a list of all PDUs for a given context."""
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return self.runInteraction(
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"get_all_pdus_from_context",
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self._get_all_pdus_from_context, context,
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)
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def _get_all_pdus_from_context(self, txn, context):
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query = (
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"SELECT pdu_id, origin FROM %s "
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"WHERE context = ?"
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) % PdusTable.table_name
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txn.execute(query, (context,))
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return self._get_pdu_tuples(txn, txn.fetchall())
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def get_backfill(self, context, pdu_list, limit):
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"""Get a list of Pdus for a given topic that occured before (and
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including) the pdus in pdu_list. Return a list of max size `limit`.
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Args:
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txn
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context (str)
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pdu_list (list)
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limit (int)
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Return:
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list: A list of PduTuples
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"""
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return self.runInteraction(
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"get_backfill",
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self._get_backfill, context, pdu_list, limit
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)
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def _get_backfill(self, txn, context, pdu_list, limit):
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logger.debug(
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"backfill: %s, %s, %s",
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context, repr(pdu_list), limit
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)
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# We seed the pdu_results with the things from the pdu_list.
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pdu_results = pdu_list
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front = pdu_list
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query = (
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"SELECT prev_pdu_id, prev_origin FROM %(edges_table)s "
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"WHERE context = ? AND pdu_id = ? AND origin = ? "
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"LIMIT ?"
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) % {
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"edges_table": PduEdgesTable.table_name,
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}
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# We iterate through all pdu_ids in `front` to select their previous
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# pdus. These are dumped in `new_front`. We continue until we reach the
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# limit *or* new_front is empty (i.e., we've run out of things to
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# select
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while front and len(pdu_results) < limit:
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new_front = []
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for pdu_id, origin in front:
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logger.debug(
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"_backfill_interaction: i=%s, o=%s",
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pdu_id, origin
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)
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txn.execute(
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query,
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(context, pdu_id, origin, limit - len(pdu_results))
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)
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for row in txn.fetchall():
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logger.debug(
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"_backfill_interaction: got i=%s, o=%s",
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*row
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)
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new_front.append(row)
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front = new_front
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pdu_results += new_front
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# We also want to update the `prev_pdus` attributes before returning.
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return self._get_pdu_tuples(txn, pdu_results)
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def get_min_depth_for_context(self, context):
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"""Get the current minimum depth for a context
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Args:
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txn
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context (str)
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"""
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return self.runInteraction(
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"get_min_depth_for_context",
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self._get_min_depth_for_context, context
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)
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def _get_min_depth_for_context(self, txn, context):
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return self._get_min_depth_interaction(txn, context)
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def _get_min_depth_interaction(self, txn, context):
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txn.execute(
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"SELECT min_depth FROM %s WHERE context = ?"
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% ContextDepthTable.table_name,
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(context,)
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)
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row = txn.fetchone()
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return row[0] if row else None
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def _update_min_depth_for_context_txn(self, txn, context, depth):
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"""Update the minimum `depth` of the given context, which is the line
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on which we stop backfilling backwards.
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Args:
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context (str)
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depth (int)
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"""
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min_depth = self._get_min_depth_interaction(txn, context)
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do_insert = depth < min_depth if min_depth else True
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if do_insert:
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txn.execute(
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"INSERT OR REPLACE INTO %s (context, min_depth) "
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"VALUES (?,?)" % ContextDepthTable.table_name,
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(context, depth)
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)
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def get_latest_pdus_in_context(self, context):
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return self.runInteraction(
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"get_latest_pdus_in_context",
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self._get_latest_pdus_in_context,
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context
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)
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def _get_latest_pdus_in_context(self, txn, context):
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"""Get's a list of the most current pdus for a given context. This is
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used when we are sending a Pdu and need to fill out the `prev_pdus`
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key
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Args:
|
||||
txn
|
||||
context
|
||||
"""
|
||||
query = (
|
||||
"SELECT p.pdu_id, p.origin, p.depth FROM %(pdus)s as p "
|
||||
"INNER JOIN %(forward)s as f ON p.pdu_id = f.pdu_id "
|
||||
"AND f.origin = p.origin "
|
||||
"WHERE f.context = ?"
|
||||
) % {
|
||||
"pdus": PdusTable.table_name,
|
||||
"forward": PduForwardExtremitiesTable.table_name,
|
||||
}
|
||||
|
||||
logger.debug("get_prev query: %s", query)
|
||||
|
||||
txn.execute(
|
||||
query,
|
||||
(context, )
|
||||
)
|
||||
|
||||
results = []
|
||||
for pdu_id, origin, depth in txn.fetchall():
|
||||
hashes = self._get_pdu_reference_hashes_txn(txn, pdu_id, origin)
|
||||
sha256_bytes = hashes["sha256"]
|
||||
prev_hashes = {"sha256": encode_base64(sha256_bytes)}
|
||||
results.append((pdu_id, origin, prev_hashes, depth))
|
||||
|
||||
return results
|
||||
|
||||
@defer.inlineCallbacks
|
||||
def get_oldest_pdus_in_context(self, context):
|
||||
"""Get a list of Pdus that we haven't backfilled beyond yet (and havent
|
||||
seen). This list is used when we want to backfill backwards and is the
|
||||
list we send to the remote server.
|
||||
|
||||
Args:
|
||||
txn
|
||||
context (str)
|
||||
|
||||
Returns:
|
||||
list: A list of PduIdTuple.
|
||||
"""
|
||||
results = yield self._execute(
|
||||
None,
|
||||
"SELECT pdu_id, origin FROM %(back)s WHERE context = ?"
|
||||
% {"back": PduBackwardExtremitiesTable.table_name, },
|
||||
context
|
||||
)
|
||||
|
||||
defer.returnValue([PduIdTuple(i, o) for i, o in results])
|
||||
|
||||
def is_pdu_new(self, pdu_id, origin, context, depth):
|
||||
"""For a given Pdu, try and figure out if it's 'new', i.e., if it's
|
||||
not something we got randomly from the past, for example when we
|
||||
request the current state of the room that will probably return a bunch
|
||||
of pdus from before we joined.
|
||||
|
||||
Args:
|
||||
txn
|
||||
pdu_id (str)
|
||||
origin (str)
|
||||
context (str)
|
||||
depth (int)
|
||||
|
||||
Returns:
|
||||
bool
|
||||
"""
|
||||
|
||||
return self.runInteraction(
|
||||
"is_pdu_new",
|
||||
self._is_pdu_new,
|
||||
pdu_id=pdu_id,
|
||||
origin=origin,
|
||||
context=context,
|
||||
depth=depth
|
||||
)
|
||||
|
||||
def _is_pdu_new(self, txn, pdu_id, origin, context, depth):
|
||||
# If depth > min depth in back table, then we classify it as new.
|
||||
# OR if there is nothing in the back table, then it kinda needs to
|
||||
# be a new thing.
|
||||
query = (
|
||||
"SELECT min(p.depth) FROM %(edges)s as e "
|
||||
"INNER JOIN %(back)s as b "
|
||||
"ON e.prev_pdu_id = b.pdu_id AND e.prev_origin = b.origin "
|
||||
"INNER JOIN %(pdus)s as p "
|
||||
"ON e.pdu_id = p.pdu_id AND p.origin = e.origin "
|
||||
"WHERE p.context = ?"
|
||||
) % {
|
||||
"pdus": PdusTable.table_name,
|
||||
"edges": PduEdgesTable.table_name,
|
||||
"back": PduBackwardExtremitiesTable.table_name,
|
||||
}
|
||||
|
||||
txn.execute(query, (context,))
|
||||
|
||||
min_depth, = txn.fetchone()
|
||||
|
||||
if not min_depth or depth > int(min_depth):
|
||||
logger.debug(
|
||||
"is_new true: id=%s, o=%s, d=%s min_depth=%s",
|
||||
pdu_id, origin, depth, min_depth
|
||||
)
|
||||
return True
|
||||
|
||||
# If this pdu is in the forwards table, then it also is a new one
|
||||
query = (
|
||||
"SELECT * FROM %(forward)s WHERE pdu_id = ? AND origin = ?"
|
||||
) % {
|
||||
"forward": PduForwardExtremitiesTable.table_name,
|
||||
}
|
||||
|
||||
txn.execute(query, (pdu_id, origin))
|
||||
|
||||
# Did we get anything?
|
||||
if txn.fetchall():
|
||||
logger.debug(
|
||||
"is_new true: id=%s, o=%s, d=%s was forward",
|
||||
pdu_id, origin, depth
|
||||
)
|
||||
return True
|
||||
|
||||
logger.debug(
|
||||
"is_new false: id=%s, o=%s, d=%s",
|
||||
pdu_id, origin, depth
|
||||
)
|
||||
|
||||
# FINE THEN. It's probably old.
|
||||
return False
|
||||
|
||||
@staticmethod
|
||||
@log_function
|
||||
def _handle_prev_pdus(txn, outlier, pdu_id, origin, prev_pdus,
|
||||
context):
|
||||
txn.executemany(
|
||||
PduEdgesTable.insert_statement(),
|
||||
[(pdu_id, origin, p[0], p[1], context) for p in prev_pdus]
|
||||
)
|
||||
|
||||
# Update the extremities table if this is not an outlier.
|
||||
if not outlier:
|
||||
|
||||
# First, we delete the new one from the forwards extremities table.
|
||||
query = (
|
||||
"DELETE FROM %s WHERE pdu_id = ? AND origin = ?"
|
||||
% PduForwardExtremitiesTable.table_name
|
||||
)
|
||||
txn.executemany(query, list(p[:2] for p in prev_pdus))
|
||||
|
||||
# We only insert as a forward extremety the new pdu if there are no
|
||||
# other pdus that reference it as a prev pdu
|
||||
query = (
|
||||
"INSERT INTO %(table)s (pdu_id, origin, context) "
|
||||
"SELECT ?, ?, ? WHERE NOT EXISTS ("
|
||||
"SELECT 1 FROM %(pdu_edges)s WHERE "
|
||||
"prev_pdu_id = ? AND prev_origin = ?"
|
||||
")"
|
||||
) % {
|
||||
"table": PduForwardExtremitiesTable.table_name,
|
||||
"pdu_edges": PduEdgesTable.table_name
|
||||
}
|
||||
|
||||
logger.debug("query: %s", query)
|
||||
|
||||
txn.execute(query, (pdu_id, origin, context, pdu_id, origin))
|
||||
|
||||
# Insert all the prev_pdus as a backwards thing, they'll get
|
||||
# deleted in a second if they're incorrect anyway.
|
||||
txn.executemany(
|
||||
PduBackwardExtremitiesTable.insert_statement(),
|
||||
[(i, o, context) for i, o, _ in prev_pdus]
|
||||
)
|
||||
|
||||
# Also delete from the backwards extremities table all ones that
|
||||
# reference pdus that we have already seen
|
||||
query = (
|
||||
"DELETE FROM %(pdu_back)s WHERE EXISTS ("
|
||||
"SELECT 1 FROM %(pdus)s AS pdus "
|
||||
"WHERE "
|
||||
"%(pdu_back)s.pdu_id = pdus.pdu_id "
|
||||
"AND %(pdu_back)s.origin = pdus.origin "
|
||||
"AND not pdus.outlier "
|
||||
")"
|
||||
) % {
|
||||
"pdu_back": PduBackwardExtremitiesTable.table_name,
|
||||
"pdus": PdusTable.table_name,
|
||||
}
|
||||
txn.execute(query)
|
||||
|
||||
|
||||
class StatePduStore(SQLBaseStore):
|
||||
"""A collection of queries for handling state PDUs.
|
||||
"""
|
||||
|
||||
def _persist_state_txn(self, txn, prev_pdus, cols):
|
||||
"""Inserts a state PDU into the database
|
||||
|
||||
Args:
|
||||
txn,
|
||||
prev_pdus (list)
|
||||
**cols: The columns to insert into the PdusTable and StatePdusTable
|
||||
"""
|
||||
pdu_entry = PdusTable.EntryType(
|
||||
**{k: cols.get(k, None) for k in PdusTable.fields}
|
||||
)
|
||||
state_entry = StatePdusTable.EntryType(
|
||||
**{k: cols.get(k, None) for k in StatePdusTable.fields}
|
||||
)
|
||||
|
||||
logger.debug("Inserting pdu: %s", repr(pdu_entry))
|
||||
logger.debug("Inserting state: %s", repr(state_entry))
|
||||
|
||||
txn.execute(PdusTable.insert_statement(), pdu_entry)
|
||||
txn.execute(StatePdusTable.insert_statement(), state_entry)
|
||||
|
||||
self._handle_prev_pdus(
|
||||
txn,
|
||||
pdu_entry.outlier, pdu_entry.pdu_id, pdu_entry.origin, prev_pdus,
|
||||
pdu_entry.context
|
||||
)
|
||||
|
||||
def get_unresolved_state_tree(self, new_state_pdu):
|
||||
return self.runInteraction(
|
||||
"get_unresolved_state_tree",
|
||||
self._get_unresolved_state_tree, new_state_pdu
|
||||
)
|
||||
|
||||
@log_function
|
||||
def _get_unresolved_state_tree(self, txn, new_pdu):
|
||||
current = self._get_current_interaction(
|
||||
txn,
|
||||
new_pdu.context, new_pdu.pdu_type, new_pdu.state_key
|
||||
)
|
||||
|
||||
ReturnType = namedtuple(
|
||||
"StateReturnType", ["new_branch", "current_branch"]
|
||||
)
|
||||
return_value = ReturnType([new_pdu], [])
|
||||
|
||||
if not current:
|
||||
logger.debug("get_unresolved_state_tree No current state.")
|
||||
return (return_value, None)
|
||||
|
||||
return_value.current_branch.append(current)
|
||||
|
||||
enum_branches = self._enumerate_state_branches(
|
||||
txn, new_pdu, current
|
||||
)
|
||||
|
||||
missing_branch = None
|
||||
for branch, prev_state, state in enum_branches:
|
||||
if state:
|
||||
return_value[branch].append(state)
|
||||
else:
|
||||
# We don't have prev_state :(
|
||||
missing_branch = branch
|
||||
break
|
||||
|
||||
return (return_value, missing_branch)
|
||||
|
||||
def update_current_state(self, pdu_id, origin, context, pdu_type,
|
||||
state_key):
|
||||
return self.runInteraction(
|
||||
"update_current_state",
|
||||
self._update_current_state,
|
||||
pdu_id, origin, context, pdu_type, state_key
|
||||
)
|
||||
|
||||
def _update_current_state(self, txn, pdu_id, origin, context, pdu_type,
|
||||
state_key):
|
||||
query = (
|
||||
"INSERT OR REPLACE INTO %(curr)s (%(fields)s) VALUES (%(qs)s)"
|
||||
) % {
|
||||
"curr": CurrentStateTable.table_name,
|
||||
"fields": CurrentStateTable.get_fields_string(),
|
||||
"qs": ", ".join(["?"] * len(CurrentStateTable.fields))
|
||||
}
|
||||
|
||||
query_args = CurrentStateTable.EntryType(
|
||||
pdu_id=pdu_id,
|
||||
origin=origin,
|
||||
context=context,
|
||||
pdu_type=pdu_type,
|
||||
state_key=state_key
|
||||
)
|
||||
|
||||
txn.execute(query, query_args)
|
||||
|
||||
def get_current_state_pdu(self, context, pdu_type, state_key):
|
||||
"""For a given context, pdu_type, state_key 3-tuple, return what is
|
||||
currently considered the current state.
|
||||
|
||||
Args:
|
||||
txn
|
||||
context (str)
|
||||
pdu_type (str)
|
||||
state_key (str)
|
||||
|
||||
Returns:
|
||||
PduEntry
|
||||
"""
|
||||
|
||||
return self.runInteraction(
|
||||
"get_current_state_pdu",
|
||||
self._get_current_state_pdu, context, pdu_type, state_key
|
||||
)
|
||||
|
||||
def _get_current_state_pdu(self, txn, context, pdu_type, state_key):
|
||||
return self._get_current_interaction(txn, context, pdu_type, state_key)
|
||||
|
||||
def _get_current_interaction(self, txn, context, pdu_type, state_key):
|
||||
logger.debug(
|
||||
"_get_current_interaction %s %s %s",
|
||||
context, pdu_type, state_key
|
||||
)
|
||||
|
||||
fields = _pdu_state_joiner.get_fields(
|
||||
PdusTable="p", StatePdusTable="s")
|
||||
|
||||
current_query = (
|
||||
"SELECT %(fields)s FROM %(state)s as s "
|
||||
"INNER JOIN %(pdus)s as p "
|
||||
"ON s.pdu_id = p.pdu_id AND s.origin = p.origin "
|
||||
"INNER JOIN %(curr)s as c "
|
||||
"ON s.pdu_id = c.pdu_id AND s.origin = c.origin "
|
||||
"WHERE s.context = ? AND s.pdu_type = ? AND s.state_key = ? "
|
||||
) % {
|
||||
"fields": fields,
|
||||
"curr": CurrentStateTable.table_name,
|
||||
"state": StatePdusTable.table_name,
|
||||
"pdus": PdusTable.table_name,
|
||||
}
|
||||
|
||||
txn.execute(
|
||||
current_query,
|
||||
(context, pdu_type, state_key)
|
||||
)
|
||||
|
||||
row = txn.fetchone()
|
||||
|
||||
result = PduEntry(*row) if row else None
|
||||
|
||||
if not result:
|
||||
logger.debug("_get_current_interaction not found")
|
||||
else:
|
||||
logger.debug(
|
||||
"_get_current_interaction found %s %s",
|
||||
result.pdu_id, result.origin
|
||||
)
|
||||
|
||||
return result
|
||||
|
||||
def handle_new_state(self, new_pdu):
|
||||
"""Actually perform conflict resolution on the new_pdu on the
|
||||
assumption we have all the pdus required to perform it.
|
||||
|
||||
Args:
|
||||
new_pdu
|
||||
|
||||
Returns:
|
||||
bool: True if the new_pdu clobbered the current state, False if not
|
||||
"""
|
||||
return self.runInteraction(
|
||||
"handle_new_state",
|
||||
self._handle_new_state, new_pdu
|
||||
)
|
||||
|
||||
def _handle_new_state(self, txn, new_pdu):
|
||||
logger.debug(
|
||||
"handle_new_state %s %s",
|
||||
new_pdu.pdu_id, new_pdu.origin
|
||||
)
|
||||
|
||||
current = self._get_current_interaction(
|
||||
txn,
|
||||
new_pdu.context, new_pdu.pdu_type, new_pdu.state_key
|
||||
)
|
||||
|
||||
is_current = False
|
||||
|
||||
if (not current or not current.prev_state_id
|
||||
or not current.prev_state_origin):
|
||||
# Oh, we don't have any state for this yet.
|
||||
is_current = True
|
||||
elif (current.pdu_id == new_pdu.prev_state_id
|
||||
and current.origin == new_pdu.prev_state_origin):
|
||||
# Oh! A direct clobber. Just do it.
|
||||
is_current = True
|
||||
else:
|
||||
##
|
||||
# Ok, now loop through until we get to a common ancestor.
|
||||
max_new = int(new_pdu.power_level)
|
||||
max_current = int(current.power_level)
|
||||
|
||||
enum_branches = self._enumerate_state_branches(
|
||||
txn, new_pdu, current
|
||||
)
|
||||
for branch, prev_state, state in enum_branches:
|
||||
if not state:
|
||||
raise RuntimeError(
|
||||
"Could not find state_pdu %s %s" %
|
||||
(
|
||||
prev_state.prev_state_id,
|
||||
prev_state.prev_state_origin
|
||||
)
|
||||
)
|
||||
|
||||
if branch == 0:
|
||||
max_new = max(int(state.depth), max_new)
|
||||
else:
|
||||
max_current = max(int(state.depth), max_current)
|
||||
|
||||
is_current = max_new > max_current
|
||||
|
||||
if is_current:
|
||||
logger.debug("handle_new_state make current")
|
||||
|
||||
# Right, this is a new thing, so woo, just insert it.
|
||||
txn.execute(
|
||||
"INSERT OR REPLACE INTO %(curr)s (%(fields)s) VALUES (%(qs)s)"
|
||||
% {
|
||||
"curr": CurrentStateTable.table_name,
|
||||
"fields": CurrentStateTable.get_fields_string(),
|
||||
"qs": ", ".join(["?"] * len(CurrentStateTable.fields))
|
||||
},
|
||||
CurrentStateTable.EntryType(
|
||||
*(new_pdu.__dict__[k] for k in CurrentStateTable.fields)
|
||||
)
|
||||
)
|
||||
else:
|
||||
logger.debug("handle_new_state not current")
|
||||
|
||||
logger.debug("handle_new_state done")
|
||||
|
||||
return is_current
|
||||
|
||||
@log_function
|
||||
def _enumerate_state_branches(self, txn, pdu_a, pdu_b):
|
||||
branch_a = pdu_a
|
||||
branch_b = pdu_b
|
||||
|
||||
while True:
|
||||
if (branch_a.pdu_id == branch_b.pdu_id
|
||||
and branch_a.origin == branch_b.origin):
|
||||
# Woo! We found a common ancestor
|
||||
logger.debug("_enumerate_state_branches Found common ancestor")
|
||||
break
|
||||
|
||||
do_branch_a = (
|
||||
hasattr(branch_a, "prev_state_id") and
|
||||
branch_a.prev_state_id
|
||||
)
|
||||
|
||||
do_branch_b = (
|
||||
hasattr(branch_b, "prev_state_id") and
|
||||
branch_b.prev_state_id
|
||||
)
|
||||
|
||||
logger.debug(
|
||||
"do_branch_a=%s, do_branch_b=%s",
|
||||
do_branch_a, do_branch_b
|
||||
)
|
||||
|
||||
if do_branch_a and do_branch_b:
|
||||
do_branch_a = int(branch_a.depth) > int(branch_b.depth)
|
||||
|
||||
if do_branch_a:
|
||||
pdu_tuple = PduIdTuple(
|
||||
branch_a.prev_state_id,
|
||||
branch_a.prev_state_origin
|
||||
)
|
||||
|
||||
prev_branch = branch_a
|
||||
|
||||
logger.debug("getting branch_a prev %s", pdu_tuple)
|
||||
branch_a = self._get_pdu_tuple(txn, *pdu_tuple)
|
||||
if branch_a:
|
||||
branch_a = Pdu.from_pdu_tuple(branch_a)
|
||||
|
||||
logger.debug("branch_a=%s", branch_a)
|
||||
|
||||
yield (0, prev_branch, branch_a)
|
||||
|
||||
if not branch_a:
|
||||
break
|
||||
elif do_branch_b:
|
||||
pdu_tuple = PduIdTuple(
|
||||
branch_b.prev_state_id,
|
||||
branch_b.prev_state_origin
|
||||
)
|
||||
|
||||
prev_branch = branch_b
|
||||
|
||||
logger.debug("getting branch_b prev %s", pdu_tuple)
|
||||
branch_b = self._get_pdu_tuple(txn, *pdu_tuple)
|
||||
if branch_b:
|
||||
branch_b = Pdu.from_pdu_tuple(branch_b)
|
||||
|
||||
logger.debug("branch_b=%s", branch_b)
|
||||
|
||||
yield (1, prev_branch, branch_b)
|
||||
|
||||
if not branch_b:
|
||||
break
|
||||
else:
|
||||
break
|
||||
|
||||
|
||||
class PdusTable(Table):
|
||||
table_name = "pdus"
|
||||
|
||||
fields = [
|
||||
"pdu_id",
|
||||
"origin",
|
||||
"context",
|
||||
"pdu_type",
|
||||
"ts",
|
||||
"depth",
|
||||
"is_state",
|
||||
"content_json",
|
||||
"unrecognized_keys",
|
||||
"outlier",
|
||||
"have_processed",
|
||||
]
|
||||
|
||||
EntryType = namedtuple("PdusEntry", fields)
|
||||
|
||||
|
||||
class PduDestinationsTable(Table):
|
||||
table_name = "pdu_destinations"
|
||||
|
||||
fields = [
|
||||
"pdu_id",
|
||||
"origin",
|
||||
"destination",
|
||||
"delivered_ts",
|
||||
]
|
||||
|
||||
EntryType = namedtuple("PduDestinationsEntry", fields)
|
||||
|
||||
|
||||
class PduEdgesTable(Table):
|
||||
table_name = "pdu_edges"
|
||||
|
||||
fields = [
|
||||
"pdu_id",
|
||||
"origin",
|
||||
"prev_pdu_id",
|
||||
"prev_origin",
|
||||
"context"
|
||||
]
|
||||
|
||||
EntryType = namedtuple("PduEdgesEntry", fields)
|
||||
|
||||
|
||||
class PduForwardExtremitiesTable(Table):
|
||||
table_name = "pdu_forward_extremities"
|
||||
|
||||
fields = [
|
||||
"pdu_id",
|
||||
"origin",
|
||||
"context",
|
||||
]
|
||||
|
||||
EntryType = namedtuple("PduForwardExtremitiesEntry", fields)
|
||||
|
||||
|
||||
class PduBackwardExtremitiesTable(Table):
|
||||
table_name = "pdu_backward_extremities"
|
||||
|
||||
fields = [
|
||||
"pdu_id",
|
||||
"origin",
|
||||
"context",
|
||||
]
|
||||
|
||||
EntryType = namedtuple("PduBackwardExtremitiesEntry", fields)
|
||||
|
||||
|
||||
class ContextDepthTable(Table):
|
||||
table_name = "context_depth"
|
||||
|
||||
fields = [
|
||||
"context",
|
||||
"min_depth",
|
||||
]
|
||||
|
||||
EntryType = namedtuple("ContextDepthEntry", fields)
|
||||
|
||||
|
||||
class StatePdusTable(Table):
|
||||
table_name = "state_pdus"
|
||||
|
||||
fields = [
|
||||
"pdu_id",
|
||||
"origin",
|
||||
"context",
|
||||
"pdu_type",
|
||||
"state_key",
|
||||
"power_level",
|
||||
"prev_state_id",
|
||||
"prev_state_origin",
|
||||
]
|
||||
|
||||
EntryType = namedtuple("StatePdusEntry", fields)
|
||||
|
||||
|
||||
class CurrentStateTable(Table):
|
||||
table_name = "current_state"
|
||||
|
||||
fields = [
|
||||
"pdu_id",
|
||||
"origin",
|
||||
"context",
|
||||
"pdu_type",
|
||||
"state_key",
|
||||
]
|
||||
|
||||
EntryType = namedtuple("CurrentStateEntry", fields)
|
||||
|
||||
_pdu_state_joiner = JoinHelper(PdusTable, StatePdusTable)
|
||||
|
||||
|
||||
# TODO: These should probably be put somewhere more sensible
|
||||
PduIdTuple = namedtuple("PduIdTuple", ("pdu_id", "origin"))
|
||||
|
||||
PduEntry = _pdu_state_joiner.EntryType
|
||||
""" We are always interested in the join of the PdusTable and StatePdusTable,
|
||||
rather than just the PdusTable.
|
||||
|
||||
This does not include a prev_pdus key.
|
||||
"""
|
||||
|
||||
PduTuple = namedtuple(
|
||||
"PduTuple",
|
||||
("pdu_entry", "prev_pdu_list", "hashes", "signatures", "edge_hashes")
|
||||
)
|
||||
""" This is a tuple of a `PduEntry` and a list of `PduIdTuple` that represent
|
||||
the `prev_pdus` key of a PDU.
|
||||
"""
|
||||
|
|
@ -1,106 +0,0 @@
|
|||
/* Copyright 2014 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.
|
||||
*/
|
||||
-- Stores pdus and their content
|
||||
CREATE TABLE IF NOT EXISTS pdus(
|
||||
pdu_id TEXT,
|
||||
origin TEXT,
|
||||
context TEXT,
|
||||
pdu_type TEXT,
|
||||
ts INTEGER,
|
||||
depth INTEGER DEFAULT 0 NOT NULL,
|
||||
is_state BOOL,
|
||||
content_json TEXT,
|
||||
unrecognized_keys TEXT,
|
||||
outlier BOOL NOT NULL,
|
||||
have_processed BOOL,
|
||||
CONSTRAINT pdu_id_origin UNIQUE (pdu_id, origin)
|
||||
);
|
||||
|
||||
-- Stores what the current state pdu is for a given (context, pdu_type, key) tuple
|
||||
CREATE TABLE IF NOT EXISTS state_pdus(
|
||||
pdu_id TEXT,
|
||||
origin TEXT,
|
||||
context TEXT,
|
||||
pdu_type TEXT,
|
||||
state_key TEXT,
|
||||
power_level TEXT,
|
||||
prev_state_id TEXT,
|
||||
prev_state_origin TEXT,
|
||||
CONSTRAINT pdu_id_origin UNIQUE (pdu_id, origin)
|
||||
CONSTRAINT prev_pdu_id_origin UNIQUE (prev_state_id, prev_state_origin)
|
||||
);
|
||||
|
||||
CREATE TABLE IF NOT EXISTS current_state(
|
||||
pdu_id TEXT,
|
||||
origin TEXT,
|
||||
context TEXT,
|
||||
pdu_type TEXT,
|
||||
state_key TEXT,
|
||||
CONSTRAINT pdu_id_origin UNIQUE (pdu_id, origin)
|
||||
CONSTRAINT uniqueness UNIQUE (context, pdu_type, state_key) ON CONFLICT REPLACE
|
||||
);
|
||||
|
||||
-- Stores where each pdu we want to send should be sent and the delivery status.
|
||||
create TABLE IF NOT EXISTS pdu_destinations(
|
||||
pdu_id TEXT,
|
||||
origin TEXT,
|
||||
destination TEXT,
|
||||
delivered_ts INTEGER DEFAULT 0, -- or 0 if not delivered
|
||||
CONSTRAINT uniqueness UNIQUE (pdu_id, origin, destination) ON CONFLICT REPLACE
|
||||
);
|
||||
|
||||
CREATE TABLE IF NOT EXISTS pdu_forward_extremities(
|
||||
pdu_id TEXT,
|
||||
origin TEXT,
|
||||
context TEXT,
|
||||
CONSTRAINT uniqueness UNIQUE (pdu_id, origin, context) ON CONFLICT REPLACE
|
||||
);
|
||||
|
||||
CREATE TABLE IF NOT EXISTS pdu_backward_extremities(
|
||||
pdu_id TEXT,
|
||||
origin TEXT,
|
||||
context TEXT,
|
||||
CONSTRAINT uniqueness UNIQUE (pdu_id, origin, context) ON CONFLICT REPLACE
|
||||
);
|
||||
|
||||
CREATE TABLE IF NOT EXISTS pdu_edges(
|
||||
pdu_id TEXT,
|
||||
origin TEXT,
|
||||
prev_pdu_id TEXT,
|
||||
prev_origin TEXT,
|
||||
context TEXT,
|
||||
CONSTRAINT uniqueness UNIQUE (pdu_id, origin, prev_pdu_id, prev_origin, context)
|
||||
);
|
||||
|
||||
CREATE TABLE IF NOT EXISTS context_depth(
|
||||
context TEXT,
|
||||
min_depth INTEGER,
|
||||
CONSTRAINT uniqueness UNIQUE (context)
|
||||
);
|
||||
|
||||
CREATE INDEX IF NOT EXISTS context_depth_context ON context_depth(context);
|
||||
|
||||
|
||||
CREATE INDEX IF NOT EXISTS pdu_id ON pdus(pdu_id, origin);
|
||||
|
||||
CREATE INDEX IF NOT EXISTS dests_id ON pdu_destinations (pdu_id, origin);
|
||||
-- CREATE INDEX IF NOT EXISTS dests ON pdu_destinations (destination);
|
||||
|
||||
CREATE INDEX IF NOT EXISTS pdu_extrem_context ON pdu_forward_extremities(context);
|
||||
CREATE INDEX IF NOT EXISTS pdu_extrem_id ON pdu_forward_extremities(pdu_id, origin);
|
||||
|
||||
CREATE INDEX IF NOT EXISTS pdu_edges_id ON pdu_edges(pdu_id, origin);
|
||||
|
||||
CREATE INDEX IF NOT EXISTS pdu_b_extrem_context ON pdu_backward_extremities(context);
|
||||
|
|
@ -14,7 +14,6 @@
|
|||
# limitations under the License.
|
||||
|
||||
from ._base import SQLBaseStore, Table
|
||||
from .pdu import PdusTable
|
||||
|
||||
from collections import namedtuple
|
||||
|
||||
|
|
@ -207,50 +206,6 @@ class TransactionStore(SQLBaseStore):
|
|||
|
||||
return ReceivedTransactionsTable.decode_results(txn.fetchall())
|
||||
|
||||
def get_pdus_after_transaction(self, transaction_id, destination):
|
||||
"""For a given local transaction_id that we sent to a given destination
|
||||
home server, return a list of PDUs that were sent to that destination
|
||||
after it.
|
||||
|
||||
Args:
|
||||
txn
|
||||
transaction_id (str)
|
||||
destination (str)
|
||||
|
||||
Returns
|
||||
list: A list of PduTuple
|
||||
"""
|
||||
return self.runInteraction(
|
||||
"get_pdus_after_transaction",
|
||||
self._get_pdus_after_transaction,
|
||||
transaction_id, destination
|
||||
)
|
||||
|
||||
def _get_pdus_after_transaction(self, txn, transaction_id, destination):
|
||||
|
||||
# Query that first get's all transaction_ids with an id greater than
|
||||
# the one given from the `sent_transactions` table. Then JOIN on this
|
||||
# from the `tx->pdu` table to get a list of (pdu_id, origin) that
|
||||
# specify the pdus that were sent in those transactions.
|
||||
query = (
|
||||
"SELECT pdu_id, pdu_origin FROM %(tx_pdu)s as tp "
|
||||
"INNER JOIN %(sent_tx)s as st "
|
||||
"ON tp.transaction_id = st.transaction_id "
|
||||
"AND tp.destination = st.destination "
|
||||
"WHERE st.id > ("
|
||||
"SELECT id FROM %(sent_tx)s "
|
||||
"WHERE transaction_id = ? AND destination = ?"
|
||||
) % {
|
||||
"tx_pdu": TransactionsToPduTable.table_name,
|
||||
"sent_tx": SentTransactions.table_name,
|
||||
}
|
||||
|
||||
txn.execute(query, (transaction_id, destination))
|
||||
|
||||
pdus = PdusTable.decode_results(txn.fetchall())
|
||||
|
||||
return self._get_pdu_tuples(txn, pdus)
|
||||
|
||||
|
||||
class ReceivedTransactionsTable(Table):
|
||||
table_name = "received_transactions"
|
||||
|
|
|
|||
Loading…
Reference in New Issue