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Rearrange storage modules

This commit is contained in:
Erik Johnston 2015-03-20 13:52:56 +00:00
parent 532ebc4a82
commit 87db64b839
7 changed files with 493 additions and 515 deletions
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472
synapse/storage/__init__.py
View File

@ -13,14 +13,9 @@
# See the License for the specific language governing permissions and
# limitations under the License.
from twisted.internet import defer
from synapse.util.logutils import log_function
from synapse.api.constants import EventTypes
from .appservice import ApplicationServiceStore
from .directory import DirectoryStore
from .feedback import FeedbackStore
from .events import EventsStore
from .presence import PresenceStore
from .profile import ProfileStore
from .registration import RegistrationStore
@ -39,11 +34,6 @@ from .state import StateStore
from .signatures import SignatureStore
from .filtering import FilteringStore
from syutil.base64util import decode_base64
from syutil.jsonutil import encode_canonical_json
from synapse.crypto.event_signing import compute_event_reference_hash
import fnmatch
import imp
@ -62,15 +52,8 @@ SCHEMA_VERSION = 14
dir_path = os.path.abspath(os.path.dirname(__file__))
class _RollbackButIsFineException(Exception):
""" This exception is used to rollback a transaction without implying
something went wrong.
"""
pass
class DataStore(RoomMemberStore, RoomStore,
RegistrationStore, StreamStore, ProfileStore, FeedbackStore,
RegistrationStore, StreamStore, ProfileStore,
PresenceStore, TransactionStore,
DirectoryStore, KeyStore, StateStore, SignatureStore,
ApplicationServiceStore,
@ -79,7 +62,8 @@ class DataStore(RoomMemberStore, RoomStore,
RejectionsStore,
FilteringStore,
PusherStore,
PushRuleStore
PushRuleStore,
EventsStore,
):
def __init__(self, hs):
@ -89,422 +73,6 @@ class DataStore(RoomMemberStore, RoomStore,
self.min_token_deferred = self._get_min_token()
self.min_token = None
@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
try:
yield self.runInteraction(
"persist_event",
self._persist_event_txn,
event=event,
context=context,
backfilled=backfilled,
stream_ordering=stream_ordering,
is_new_state=is_new_state,
current_state=current_state,
)
except _RollbackButIsFineException:
pass
@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.
"""
event = yield self.runInteraction(
"get_event", self._get_event_txn,
event_id,
check_redacted=check_redacted,
get_prev_content=get_prev_content,
allow_rejected=allow_rejected,
)
if not event and not allow_none:
raise RuntimeError("Could not find event %s" % (event_id,))
defer.returnValue(event)
@log_function
def _persist_event_txn(self, txn, event, context, backfilled,
stream_ordering=None, is_new_state=True,
current_state=None):
# Remove the any existing cache entries for the event_id
self._get_event_cache.pop(event.event_id)
# 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.execute(
"DELETE FROM current_state_events WHERE 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,
},
or_replace=True,
)
if event.is_state() and is_new_state:
if not backfilled and not context.rejected:
self._simple_insert_txn(
txn,
table="state_forward_extremities",
values={
"event_id": event.event_id,
"room_id": event.room_id,
"type": event.type,
"state_key": event.state_key,
},
or_replace=True,
)
for prev_state_id, _ in event.prev_state:
self._simple_delete_txn(
txn,
table="state_forward_extremities",
keyvalues={
"event_id": prev_state_id,
}
)
outlier = event.internal_metadata.is_outlier()
if not outlier:
self._store_state_groups_txn(txn, event, context)
self._update_min_depth_for_room_txn(
txn,
event.room_id,
event.depth
)
self._handle_prev_events(
txn,
outlier=outlier,
event_id=event.event_id,
prev_events=event.prev_events,
room_id=event.room_id,
)
have_persisted = self._simple_select_one_onecol_txn(
txn,
table="event_json",
keyvalues={"event_id": event.event_id},
retcol="event_id",
allow_none=True,
)
metadata_json = encode_canonical_json(
event.internal_metadata.get_dict()
)
# If we have already persisted this event, we don't need to do any
# more processing.
# The processing above must be done on every call to persist event,
# since they might not have happened on previous calls. For example,
# if we are persisting an event that we had persisted as an outlier,
# but is no longer one.
if have_persisted:
if not outlier:
sql = (
"UPDATE event_json SET internal_metadata = ?"
" WHERE event_id = ?"
)
txn.execute(
sql,
(metadata_json.decode("UTF-8"), event.event_id,)
)
sql = (
"UPDATE events SET outlier = 0"
" WHERE event_id = ?"
)
txn.execute(
sql,
(event.event_id,)
)
return
if event.type == EventTypes.Member:
self._store_room_member_txn(txn, event)
elif event.type == EventTypes.Feedback:
self._store_feedback_txn(txn, event)
elif 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)
event_dict = {
k: v
for k, v in event.get_dict().items()
if k not in [
"redacted",
"redacted_because",
]
}
self._simple_insert_txn(
txn,
table="event_json",
values={
"event_id": event.event_id,
"room_id": event.room_id,
"internal_metadata": metadata_json.decode("UTF-8"),
"json": encode_canonical_json(event_dict).decode("UTF-8"),
},
or_replace=True,
)
content = encode_canonical_json(
event.content
).decode("UTF-8")
vals = {
"topological_ordering": event.depth,
"event_id": event.event_id,
"type": event.type,
"room_id": event.room_id,
"content": content,
"processed": True,
"outlier": outlier,
"depth": event.depth,
}
if stream_ordering is not None:
vals["stream_ordering"] = stream_ordering
unrec = {
k: v
for k, v in event.get_dict().items()
if k not in vals.keys() and k not in [
"redacted",
"redacted_because",
"signatures",
"hashes",
"prev_events",
]
}
vals["unrecognized_keys"] = encode_canonical_json(
unrec
).decode("UTF-8")
try:
self._simple_insert_txn(
txn,
"events",
vals,
or_replace=(not outlier),
or_ignore=bool(outlier),
)
except:
logger.warn(
"Failed to persist, probably duplicate: %s",
event.event_id,
exc_info=True,
)
raise _RollbackButIsFineException("_persist_event")
if context.rejected:
self._store_rejections_txn(txn, event.event_id, context.rejected)
if event.is_state():
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
self._simple_insert_txn(
txn,
"state_events",
vals,
or_replace=True,
)
if is_new_state and not context.rejected:
self._simple_insert_txn(
txn,
"current_state_events",
{
"event_id": event.event_id,
"room_id": event.room_id,
"type": event.type,
"state_key": event.state_key,
},
or_replace=True,
)
for e_id, h in event.prev_state:
self._simple_insert_txn(
txn,
table="event_edges",
values={
"event_id": event.event_id,
"prev_event_id": e_id,
"room_id": event.room_id,
"is_state": 1,
},
or_ignore=True,
)
for hash_alg, hash_base64 in event.hashes.items():
hash_bytes = decode_base64(hash_base64)
self._store_event_content_hash_txn(
txn, event.event_id, hash_alg, hash_bytes,
)
for prev_event_id, prev_hashes in event.prev_events:
for alg, hash_base64 in prev_hashes.items():
hash_bytes = decode_base64(hash_base64)
self._store_prev_event_hash_txn(
txn, event.event_id, prev_event_id, alg, hash_bytes
)
for auth_id, _ in event.auth_events:
self._simple_insert_txn(
txn,
table="event_auth",
values={
"event_id": event.event_id,
"room_id": event.room_id,
"auth_id": auth_id,
},
or_ignore=True,
)
(ref_alg, ref_hash_bytes) = compute_event_reference_hash(event)
self._store_event_reference_hash_txn(
txn, event.event_id, ref_alg, ref_hash_bytes
)
def _store_redaction(self, txn, event):
# invalidate the cache for the redacted event
self._get_event_cache.pop(event.redacts)
txn.execute(
"INSERT OR IGNORE INTO redactions "
"(event_id, redacts) VALUES (?,?)",
(event.event_id, event.redacts)
)
@defer.inlineCallbacks
def get_current_state(self, room_id, event_type=None, state_key=""):
del_sql = (
"SELECT event_id FROM redactions WHERE redacts = e.event_id "
"LIMIT 1"
)
sql = (
"SELECT e.*, (%(redacted)s) AS redacted FROM events as e "
"INNER JOIN current_state_events as c ON e.event_id = c.event_id "
"INNER JOIN state_events as s ON e.event_id = s.event_id "
"WHERE c.room_id = ? "
) % {
"redacted": del_sql,
}
if event_type and state_key is not None:
sql += " AND s.type = ? AND s.state_key = ? "
args = (room_id, event_type, state_key)
elif event_type:
sql += " AND s.type = ?"
args = (room_id, event_type)
else:
args = (room_id, )
results = yield self._execute_and_decode("get_current_state", sql, *args)
events = yield self._parse_events(results)
defer.returnValue(events)
@defer.inlineCallbacks
def get_room_name_and_aliases(self, room_id):
del_sql = (
"SELECT event_id FROM redactions WHERE redacts = e.event_id "
"LIMIT 1"
)
sql = (
"SELECT e.*, (%(redacted)s) AS redacted FROM events as e "
"INNER JOIN current_state_events as c ON e.event_id = c.event_id "
"INNER JOIN state_events as s ON e.event_id = s.event_id "
"WHERE c.room_id = ? "
) % {
"redacted": del_sql,
}
sql += " AND ((s.type = 'm.room.name' AND s.state_key = '')"
sql += " OR s.type = 'm.room.aliases')"
args = (room_id,)
results = yield self._execute_and_decode("get_current_state", sql, *args)
events = yield self._parse_events(results)
name = None
aliases = []
for e in events:
if e.type == 'm.room.name':
if 'name' in e.content:
name = e.content['name']
elif e.type == 'm.room.aliases':
if 'aliases' in e.content:
aliases.extend(e.content['aliases'])
defer.returnValue((name, aliases))
@defer.inlineCallbacks
def _get_min_token(self):
row = yield self._execute(
"_get_min_token", None, "SELECT MIN(stream_ordering) FROM events"
)
self.min_token = row[0][0] if row and row[0] and row[0][0] else -1
self.min_token = min(self.min_token, -1)
logger.debug("min_token is: %s", self.min_token)
defer.returnValue(self.min_token)
def insert_client_ip(self, user, access_token, device_id, ip, user_agent):
return self._simple_insert(
"user_ips",
@ -527,38 +95,6 @@ class DataStore(RoomMemberStore, RoomStore,
],
)
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,
)
def read_schema(path):
""" Read the named database schema.

7
synapse/storage/_base.py
View File

@ -789,6 +789,13 @@ class SQLBaseStore(object):
return result[0] if result else None
class _RollbackButIsFineException(Exception):
""" This exception is used to rollback a transaction without implying
something went wrong.
"""
pass
class Table(object):
""" A base class used to store information about a particular table.
"""

394
synapse/storage/events.py Normal file
View File

@ -0,0 +1,394 @@
# -*- 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
from synapse.util.logutils import log_function
from synapse.api.constants import EventTypes
from synapse.crypto.event_signing import compute_event_reference_hash
from syutil.base64util import decode_base64
from syutil.jsonutil import encode_canonical_json
import logging
logger = logging.getLogger(__name__)
class EventsStore(SQLBaseStore):
@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
try:
yield self.runInteraction(
"persist_event",
self._persist_event_txn,
event=event,
context=context,
backfilled=backfilled,
stream_ordering=stream_ordering,
is_new_state=is_new_state,
current_state=current_state,
)
except _RollbackButIsFineException:
pass
@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.
"""
event = yield self.runInteraction(
"get_event", self._get_event_txn,
event_id,
check_redacted=check_redacted,
get_prev_content=get_prev_content,
allow_rejected=allow_rejected,
)
if not event and not allow_none:
raise RuntimeError("Could not find event %s" % (event_id,))
defer.returnValue(event)
@log_function
def _persist_event_txn(self, txn, event, context, backfilled,
stream_ordering=None, is_new_state=True,
current_state=None):
# Remove the any existing cache entries for the event_id
self._get_event_cache.pop(event.event_id)
# 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.execute(
"DELETE FROM current_state_events WHERE 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,
},
or_replace=True,
)
if event.is_state() and is_new_state:
if not backfilled and not context.rejected:
self._simple_insert_txn(
txn,
table="state_forward_extremities",
values={
"event_id": event.event_id,
"room_id": event.room_id,
"type": event.type,
"state_key": event.state_key,
},
or_replace=True,
)
for prev_state_id, _ in event.prev_state:
self._simple_delete_txn(
txn,
table="state_forward_extremities",
keyvalues={
"event_id": prev_state_id,
}
)
outlier = event.internal_metadata.is_outlier()
if not outlier:
self._store_state_groups_txn(txn, event, context)
self._update_min_depth_for_room_txn(
txn,
event.room_id,
event.depth
)
self._handle_prev_events(
txn,
outlier=outlier,
event_id=event.event_id,
prev_events=event.prev_events,
room_id=event.room_id,
)
have_persisted = self._simple_select_one_onecol_txn(
txn,
table="event_json",
keyvalues={"event_id": event.event_id},
retcol="event_id",
allow_none=True,
)
metadata_json = encode_canonical_json(
event.internal_metadata.get_dict()
)
# If we have already persisted this event, we don't need to do any
# more processing.
# The processing above must be done on every call to persist event,
# since they might not have happened on previous calls. For example,
# if we are persisting an event that we had persisted as an outlier,
# but is no longer one.
if have_persisted:
if not outlier:
sql = (
"UPDATE event_json SET internal_metadata = ?"
" WHERE event_id = ?"
)
txn.execute(
sql,
(metadata_json.decode("UTF-8"), event.event_id,)
)
sql = (
"UPDATE events SET outlier = 0"
" WHERE event_id = ?"
)
txn.execute(
sql,
(event.event_id,)
)
return
if event.type == EventTypes.Member:
self._store_room_member_txn(txn, event)
elif event.type == EventTypes.Feedback:
self._store_feedback_txn(txn, event)
elif 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)
event_dict = {
k: v
for k, v in event.get_dict().items()
if k not in [
"redacted",
"redacted_because",
]
}
self._simple_insert_txn(
txn,
table="event_json",
values={
"event_id": event.event_id,
"room_id": event.room_id,
"internal_metadata": metadata_json.decode("UTF-8"),
"json": encode_canonical_json(event_dict).decode("UTF-8"),
},
or_replace=True,
)
content = encode_canonical_json(
event.content
).decode("UTF-8")
vals = {
"topological_ordering": event.depth,
"event_id": event.event_id,
"type": event.type,
"room_id": event.room_id,
"content": content,
"processed": True,
"outlier": outlier,
"depth": event.depth,
}
if stream_ordering is not None:
vals["stream_ordering"] = stream_ordering
unrec = {
k: v
for k, v in event.get_dict().items()
if k not in vals.keys() and k not in [
"redacted",
"redacted_because",
"signatures",
"hashes",
"prev_events",
]
}
vals["unrecognized_keys"] = encode_canonical_json(
unrec
).decode("UTF-8")
try:
self._simple_insert_txn(
txn,
"events",
vals,
or_replace=(not outlier),
or_ignore=bool(outlier),
)
except:
logger.warn(
"Failed to persist, probably duplicate: %s",
event.event_id,
exc_info=True,
)
raise _RollbackButIsFineException("_persist_event")
if context.rejected:
self._store_rejections_txn(txn, event.event_id, context.rejected)
if event.is_state():
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
self._simple_insert_txn(
txn,
"state_events",
vals,
)
if is_new_state and not context.rejected:
self._simple_insert_txn(
txn,
"current_state_events",
{
"event_id": event.event_id,
"room_id": event.room_id,
"type": event.type,
"state_key": event.state_key,
},
)
for e_id, h in event.prev_state:
self._simple_insert_txn(
txn,
table="event_edges",
values={
"event_id": event.event_id,
"prev_event_id": e_id,
"room_id": event.room_id,
"is_state": 1,
},
)
for hash_alg, hash_base64 in event.hashes.items():
hash_bytes = decode_base64(hash_base64)
self._store_event_content_hash_txn(
txn, event.event_id, hash_alg, hash_bytes,
)
for prev_event_id, prev_hashes in event.prev_events:
for alg, hash_base64 in prev_hashes.items():
hash_bytes = decode_base64(hash_base64)
self._store_prev_event_hash_txn(
txn, event.event_id, prev_event_id, alg, hash_bytes
)
for auth_id, _ in event.auth_events:
self._simple_insert_txn(
txn,
table="event_auth",
values={
"event_id": event.event_id,
"room_id": event.room_id,
"auth_id": auth_id,
},
)
(ref_alg, ref_hash_bytes) = compute_event_reference_hash(event)
self._store_event_reference_hash_txn(
txn, event.event_id, ref_alg, ref_hash_bytes
)
def _store_redaction(self, txn, event):
# invalidate the cache for the redacted event
self._get_event_cache.pop(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,
)

47
synapse/storage/feedback.py
View File

@ -1,47 +0,0 @@
# -*- 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 twisted.internet import defer
from ._base import SQLBaseStore
class FeedbackStore(SQLBaseStore):
def _store_feedback_txn(self, txn, event):
self._simple_insert_txn(txn, "feedback", {
"event_id": event.event_id,
"feedback_type": event.content["type"],
"room_id": event.room_id,
"target_event_id": event.content["target_event_id"],
"sender": event.user_id,
})
@defer.inlineCallbacks
def get_feedback_for_event(self, event_id):
sql = (
"SELECT events.* FROM events INNER JOIN feedback "
"ON events.event_id = feedback.event_id "
"WHERE feedback.target_event_id = ? "
)
rows = yield self._execute_and_decode("get_feedback_for_event", sql, event_id)
defer.returnValue(
[
(yield self._parse_events(r))
for r in rows
]
)

37
synapse/storage/room.py
View File

@ -158,6 +158,43 @@ class RoomStore(SQLBaseStore):
}
)
@defer.inlineCallbacks
def get_room_name_and_aliases(self, room_id):
del_sql = (
"SELECT event_id FROM redactions WHERE redacts = e.event_id "
"LIMIT 1"
)
sql = (
"SELECT e.*, (%(redacted)s) AS redacted FROM events as e "
"INNER JOIN current_state_events as c ON e.event_id = c.event_id "
"INNER JOIN state_events as s ON e.event_id = s.event_id "
"WHERE c.room_id = ? "
) % {
"redacted": del_sql,
}
sql += " AND ((s.type = 'm.room.name' AND s.state_key = '')"
sql += " OR s.type = 'm.room.aliases')"
args = (room_id,)
results = yield self._execute_and_decode("get_current_state", sql, *args)
events = yield self._parse_events(results)
name = None
aliases = []
for e in events:
if e.type == 'm.room.name':
if 'name' in e.content:
name = e.content['name']
elif e.type == 'm.room.aliases':
if 'aliases' in e.content:
aliases.extend(e.content['aliases'])
defer.returnValue((name, aliases))
class RoomsTable(Table):
table_name = "rooms"

32
synapse/storage/state.py
View File

@ -15,6 +15,8 @@
from ._base import SQLBaseStore
from twisted.internet import defer
import logging
logger = logging.getLogger(__name__)
@ -122,3 +124,33 @@ class StateStore(SQLBaseStore):
},
or_replace=True,
)
@defer.inlineCallbacks
def get_current_state(self, room_id, event_type=None, state_key=""):
del_sql = (
"SELECT event_id FROM redactions WHERE redacts = e.event_id "
"LIMIT 1"
)
sql = (
"SELECT e.*, (%(redacted)s) AS redacted FROM events as e "
"INNER JOIN current_state_events as c ON e.event_id = c.event_id "
"INNER JOIN state_events as s ON e.event_id = s.event_id "
"WHERE c.room_id = ? "
) % {
"redacted": del_sql,
}
if event_type and state_key is not None:
sql += " AND s.type = ? AND s.state_key = ? "
args = (room_id, event_type, state_key)
elif event_type:
sql += " AND s.type = ?"
args = (room_id, event_type)
else:
args = (room_id, )
results = yield self._execute_and_decode("get_current_state", sql, *args)
events = yield self._parse_events(results)
defer.returnValue(events)

19
synapse/storage/stream.py
View File

@ -419,6 +419,25 @@ class StreamStore(SQLBaseStore):
self._get_room_events_max_id_txn
)
@defer.inlineCallbacks
def _get_min_token(self):
row = yield self._execute(
"_get_min_token", None, "SELECT MIN(stream_ordering) FROM events"
)
self.min_token = row[0][0] if row and row[0] and row[0][0] else -1
self.min_token = min(self.min_token, -1)
logger.debug("min_token is: %s", self.min_token)
defer.returnValue(self.min_token)
def get_next_stream_id(self):
with self._next_stream_id_lock:
i = self._next_stream_id
self._next_stream_id += 1
return i
def _get_room_events_max_id_txn(self, txn):
txn.execute(
"SELECT MAX(stream_ordering) as m FROM events"