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Merge pull request #5183 from matrix-org/erikj/async_serialize_event

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Allow client event serialization to be async
This commit is contained in:
Erik Johnston 2019-05-15 10:36:30 +01:00 committed by GitHub
commit 0aba6c8251
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13 changed files with 194 additions and 101 deletions
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1
changelog.d/5183.misc Normal file
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@ -0,0 +1 @@
Allow client event serialization to be async.

44
synapse/events/utils.py
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@ -19,7 +19,10 @@ from six import string_types
from frozendict import frozendict
from twisted.internet import defer
from synapse.api.constants import EventTypes
from synapse.util.async_helpers import yieldable_gather_results
from . import EventBase
@ -311,3 +314,44 @@ def serialize_event(e, time_now_ms, as_client_event=True,
d = only_fields(d, only_event_fields)
return d
class EventClientSerializer(object):
"""Serializes events that are to be sent to clients.
This is used for bundling extra information with any events to be sent to
clients.
"""
def __init__(self, hs):
pass
def serialize_event(self, event, time_now, **kwargs):
"""Serializes a single event.
Args:
event (EventBase)
time_now (int): The current time in milliseconds
**kwargs: Arguments to pass to `serialize_event`
Returns:
Deferred[dict]: The serialized event
"""
event = serialize_event(event, time_now, **kwargs)
return defer.succeed(event)
def serialize_events(self, events, time_now, **kwargs):
"""Serializes multiple events.
Args:
event (iter[EventBase])
time_now (int): The current time in milliseconds
**kwargs: Arguments to pass to `serialize_event`
Returns:
Deferred[list[dict]]: The list of serialized events
"""
return yieldable_gather_results(
self.serialize_event, events,
time_now=time_now, **kwargs
)

8
synapse/handlers/events.py
View File

@ -21,7 +21,6 @@ from twisted.internet import defer
from synapse.api.constants import EventTypes, Membership
from synapse.api.errors import AuthError, SynapseError
from synapse.events import EventBase
from synapse.events.utils import serialize_event
from synapse.types import UserID
from synapse.util.logutils import log_function
from synapse.visibility import filter_events_for_client
@ -50,6 +49,7 @@ class EventStreamHandler(BaseHandler):
self.notifier = hs.get_notifier()
self.state = hs.get_state_handler()
self._server_notices_sender = hs.get_server_notices_sender()
self._event_serializer = hs.get_event_client_serializer()
@defer.inlineCallbacks
@log_function
@ -120,9 +120,9 @@ class EventStreamHandler(BaseHandler):
time_now = self.clock.time_msec()
chunks = [
serialize_event(e, time_now, as_client_event) for e in events
]
chunks = yield self._event_serializer.serialize_events(
events, time_now, as_client_event=as_client_event,
)
chunk = {
"chunk": chunks,

44
synapse/handlers/initial_sync.py
View File

@ -19,7 +19,6 @@ from twisted.internet import defer
from synapse.api.constants import EventTypes, Membership
from synapse.api.errors import AuthError, Codes, SynapseError
from synapse.events.utils import serialize_event
from synapse.events.validator import EventValidator
from synapse.handlers.presence import format_user_presence_state
from synapse.streams.config import PaginationConfig
@ -43,6 +42,7 @@ class InitialSyncHandler(BaseHandler):
self.clock = hs.get_clock()
self.validator = EventValidator()
self.snapshot_cache = SnapshotCache()
self._event_serializer = hs.get_event_client_serializer()
def snapshot_all_rooms(self, user_id=None, pagin_config=None,
as_client_event=True, include_archived=False):
@ -138,7 +138,9 @@ class InitialSyncHandler(BaseHandler):
d["inviter"] = event.sender
invite_event = yield self.store.get_event(event.event_id)
d["invite"] = serialize_event(invite_event, time_now, as_client_event)
d["invite"] = yield self._event_serializer.serialize_event(
invite_event, time_now, as_client_event,
)
rooms_ret.append(d)
@ -185,18 +187,21 @@ class InitialSyncHandler(BaseHandler):
time_now = self.clock.time_msec()
d["messages"] = {
"chunk": [
serialize_event(m, time_now, as_client_event)
for m in messages
],
"chunk": (
yield self._event_serializer.serialize_events(
messages, time_now=time_now,
as_client_event=as_client_event,
)
),
"start": start_token.to_string(),
"end": end_token.to_string(),
}
d["state"] = [
serialize_event(c, time_now, as_client_event)
for c in current_state.values()
]
d["state"] = yield self._event_serializer.serialize_events(
current_state.values(),
time_now=time_now,
as_client_event=as_client_event
)
account_data_events = []
tags = tags_by_room.get(event.room_id)
@ -337,11 +342,15 @@ class InitialSyncHandler(BaseHandler):
"membership": membership,
"room_id": room_id,
"messages": {
"chunk": [serialize_event(m, time_now) for m in messages],
"chunk": (yield self._event_serializer.serialize_events(
messages, time_now,
)),
"start": start_token.to_string(),
"end": end_token.to_string(),
},
"state": [serialize_event(s, time_now) for s in room_state.values()],
"state": (yield self._event_serializer.serialize_events(
room_state.values(), time_now,
)),
"presence": [],
"receipts": [],
})
@ -355,10 +364,9 @@ class InitialSyncHandler(BaseHandler):
# TODO: These concurrently
time_now = self.clock.time_msec()
state = [
serialize_event(x, time_now)
for x in current_state.values()
]
state = yield self._event_serializer.serialize_events(
current_state.values(), time_now,
)
now_token = yield self.hs.get_event_sources().get_current_token()
@ -425,7 +433,9 @@ class InitialSyncHandler(BaseHandler):
ret = {
"room_id": room_id,
"messages": {
"chunk": [serialize_event(m, time_now) for m in messages],
"chunk": (yield self._event_serializer.serialize_events(
messages, time_now,
)),
"start": start_token.to_string(),
"end": end_token.to_string(),
},

7
synapse/handlers/message.py
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@ -32,7 +32,6 @@ from synapse.api.errors import (
)
from synapse.api.room_versions import RoomVersions
from synapse.api.urls import ConsentURIBuilder
from synapse.events.utils import serialize_event
from synapse.events.validator import EventValidator
from synapse.replication.http.send_event import ReplicationSendEventRestServlet
from synapse.storage.state import StateFilter
@ -57,6 +56,7 @@ class MessageHandler(object):
self.clock = hs.get_clock()
self.state = hs.get_state_handler()
self.store = hs.get_datastore()
self._event_serializer = hs.get_event_client_serializer()
@defer.inlineCallbacks
def get_room_data(self, user_id=None, room_id=None,
@ -164,9 +164,10 @@ class MessageHandler(object):
room_state = room_state[membership_event_id]
now = self.clock.time_msec()
defer.returnValue(
[serialize_event(c, now) for c in room_state.values()]
events = yield self._event_serializer.serialize_events(
room_state.values(), now,
)
defer.returnValue(events)
@defer.inlineCallbacks
def get_joined_members(self, requester, room_id):

22
synapse/handlers/pagination.py
View File

@ -20,7 +20,6 @@ from twisted.python.failure import Failure
from synapse.api.constants import EventTypes, Membership
from synapse.api.errors import SynapseError
from synapse.events.utils import serialize_event
from synapse.storage.state import StateFilter
from synapse.types import RoomStreamToken
from synapse.util.async_helpers import ReadWriteLock
@ -78,6 +77,7 @@ class PaginationHandler(object):
self._purges_in_progress_by_room = set()
# map from purge id to PurgeStatus
self._purges_by_id = {}
self._event_serializer = hs.get_event_client_serializer()
def start_purge_history(self, room_id, token,
delete_local_events=False):
@ -278,18 +278,22 @@ class PaginationHandler(object):
time_now = self.clock.time_msec()
chunk = {
"chunk": [
serialize_event(e, time_now, as_client_event)
for e in events
],
"chunk": (
yield self._event_serializer.serialize_events(
events, time_now,
as_client_event=as_client_event,
)
),
"start": pagin_config.from_token.to_string(),
"end": next_token.to_string(),
}
if state:
chunk["state"] = [
serialize_event(e, time_now, as_client_event)
for e in state
]
chunk["state"] = (
yield self._event_serializer.serialize_events(
state, time_now,
as_client_event=as_client_event,
)
)
defer.returnValue(chunk)

42
synapse/handlers/search.py
View File

@ -23,7 +23,6 @@ from twisted.internet import defer
from synapse.api.constants import EventTypes, Membership
from synapse.api.errors import SynapseError
from synapse.api.filtering import Filter
from synapse.events.utils import serialize_event
from synapse.storage.state import StateFilter
from synapse.visibility import filter_events_for_client
@ -36,6 +35,7 @@ class SearchHandler(BaseHandler):
def __init__(self, hs):
super(SearchHandler, self).__init__(hs)
self._event_serializer = hs.get_event_client_serializer()
@defer.inlineCallbacks
def get_old_rooms_from_upgraded_room(self, room_id):
@ -401,14 +401,16 @@ class SearchHandler(BaseHandler):
time_now = self.clock.time_msec()
for context in contexts.values():
context["events_before"] = [
serialize_event(e, time_now)
for e in context["events_before"]
]
context["events_after"] = [
serialize_event(e, time_now)
for e in context["events_after"]
]
context["events_before"] = (
yield self._event_serializer.serialize_events(
context["events_before"], time_now,
)
)
context["events_after"] = (
yield self._event_serializer.serialize_events(
context["events_after"], time_now,
)
)
state_results = {}
if include_state:
@ -422,14 +424,13 @@ class SearchHandler(BaseHandler):
# We're now about to serialize the events. We should not make any
# blocking calls after this. Otherwise the 'age' will be wrong
results = [
{
results = []
for e in allowed_events:
results.append({
"rank": rank_map[e.event_id],
"result": serialize_event(e, time_now),
"result": (yield self._event_serializer.serialize_event(e, time_now)),
"context": contexts.get(e.event_id, {}),
}
for e in allowed_events
]
})
rooms_cat_res = {
"results": results,
@ -438,10 +439,13 @@ class SearchHandler(BaseHandler):
}
if state_results:
rooms_cat_res["state"] = {
room_id: [serialize_event(e, time_now) for e in state]
for room_id, state in state_results.items()
}
s = {}
for room_id, state in state_results.items():
s[room_id] = yield self._event_serializer.serialize_events(
state, time_now,
)
rooms_cat_res["state"] = s
if room_groups and "room_id" in group_keys:
rooms_cat_res.setdefault("groups", {})["room_id"] = room_groups

5
synapse/rest/client/v1/events.py
View File

@ -19,7 +19,6 @@ import logging
from twisted.internet import defer
from synapse.api.errors import SynapseError
from synapse.events.utils import serialize_event
from synapse.streams.config import PaginationConfig
from .base import ClientV1RestServlet, client_path_patterns
@ -84,6 +83,7 @@ class EventRestServlet(ClientV1RestServlet):
super(EventRestServlet, self).__init__(hs)
self.clock = hs.get_clock()
self.event_handler = hs.get_event_handler()
self._event_serializer = hs.get_event_client_serializer()
@defer.inlineCallbacks
def on_GET(self, request, event_id):
@ -92,7 +92,8 @@ class EventRestServlet(ClientV1RestServlet):
time_now = self.clock.time_msec()
if event:
defer.returnValue((200, serialize_event(event, time_now)))
event = yield self._event_serializer.serialize_event(event, time_now)
defer.returnValue((200, event))
else:
defer.returnValue((404, "Event not found."))

29
synapse/rest/client/v1/room.py
View File

@ -26,7 +26,7 @@ from twisted.internet import defer
from synapse.api.constants import EventTypes, Membership
from synapse.api.errors import AuthError, Codes, SynapseError
from synapse.api.filtering import Filter
from synapse.events.utils import format_event_for_client_v2, serialize_event
from synapse.events.utils import format_event_for_client_v2
from synapse.http.servlet import (
assert_params_in_dict,
parse_integer,
@ -537,6 +537,7 @@ class RoomEventServlet(ClientV1RestServlet):
super(RoomEventServlet, self).__init__(hs)
self.clock = hs.get_clock()
self.event_handler = hs.get_event_handler()
self._event_serializer = hs.get_event_client_serializer()
@defer.inlineCallbacks
def on_GET(self, request, room_id, event_id):
@ -545,7 +546,8 @@ class RoomEventServlet(ClientV1RestServlet):
time_now = self.clock.time_msec()
if event:
defer.returnValue((200, serialize_event(event, time_now)))
event = yield self._event_serializer.serialize_event(event, time_now)
defer.returnValue((200, event))
else:
defer.returnValue((404, "Event not found."))
@ -559,6 +561,7 @@ class RoomEventContextServlet(ClientV1RestServlet):
super(RoomEventContextServlet, self).__init__(hs)
self.clock = hs.get_clock()
self.room_context_handler = hs.get_room_context_handler()
self._event_serializer = hs.get_event_client_serializer()
@defer.inlineCallbacks
def on_GET(self, request, room_id, event_id):
@ -588,16 +591,18 @@ class RoomEventContextServlet(ClientV1RestServlet):
)
time_now = self.clock.time_msec()
results["events_before"] = [
serialize_event(event, time_now) for event in results["events_before"]
]
results["event"] = serialize_event(results["event"], time_now)
results["events_after"] = [
serialize_event(event, time_now) for event in results["events_after"]
]
results["state"] = [
serialize_event(event, time_now) for event in results["state"]
]
results["events_before"] = yield self._event_serializer.serialize_events(
results["events_before"], time_now,
)
results["event"] = yield self._event_serializer.serialize_event(
results["event"], time_now,
)
results["events_after"] = yield self._event_serializer.serialize_events(
results["events_after"], time_now,
)
results["state"] = yield self._event_serializer.serialize_events(
results["state"], time_now,
)
defer.returnValue((200, results))

10
synapse/rest/client/v2_alpha/notifications.py
View File

@ -17,10 +17,7 @@ import logging
from twisted.internet import defer
from synapse.events.utils import (
format_event_for_client_v2_without_room_id,
serialize_event,
)
from synapse.events.utils import format_event_for_client_v2_without_room_id
from synapse.http.servlet import RestServlet, parse_integer, parse_string
from ._base import client_v2_patterns
@ -36,6 +33,7 @@ class NotificationsServlet(RestServlet):
self.store = hs.get_datastore()
self.auth = hs.get_auth()
self.clock = hs.get_clock()
self._event_serializer = hs.get_event_client_serializer()
@defer.inlineCallbacks
def on_GET(self, request):
@ -69,11 +67,11 @@ class NotificationsServlet(RestServlet):
"profile_tag": pa["profile_tag"],
"actions": pa["actions"],
"ts": pa["received_ts"],
"event": serialize_event(
"event": (yield self._event_serializer.serialize_event(
notif_events[pa["event_id"]],
self.clock.time_msec(),
event_format=format_event_for_client_v2_without_room_id,
),
)),
}
if pa["room_id"] not in receipts_by_room:

59
synapse/rest/client/v2_alpha/sync.py
View File

@ -26,7 +26,6 @@ from synapse.api.filtering import DEFAULT_FILTER_COLLECTION, FilterCollection
from synapse.events.utils import (
format_event_for_client_v2_without_room_id,
format_event_raw,
serialize_event,
)
from synapse.handlers.presence import format_user_presence_state
from synapse.handlers.sync import SyncConfig
@ -86,6 +85,7 @@ class SyncRestServlet(RestServlet):
self.filtering = hs.get_filtering()
self.presence_handler = hs.get_presence_handler()
self._server_notices_sender = hs.get_server_notices_sender()
self._event_serializer = hs.get_event_client_serializer()
@defer.inlineCallbacks
def on_GET(self, request):
@ -168,14 +168,14 @@ class SyncRestServlet(RestServlet):
)
time_now = self.clock.time_msec()
response_content = self.encode_response(
response_content = yield self.encode_response(
time_now, sync_result, requester.access_token_id, filter
)
defer.returnValue((200, response_content))
@staticmethod
def encode_response(time_now, sync_result, access_token_id, filter):
@defer.inlineCallbacks
def encode_response(self, time_now, sync_result, access_token_id, filter):
if filter.event_format == 'client':
event_formatter = format_event_for_client_v2_without_room_id
elif filter.event_format == 'federation':
@ -183,24 +183,24 @@ class SyncRestServlet(RestServlet):
else:
raise Exception("Unknown event format %s" % (filter.event_format, ))
joined = SyncRestServlet.encode_joined(
joined = yield self.encode_joined(
sync_result.joined, time_now, access_token_id,
filter.event_fields,
event_formatter,
)
invited = SyncRestServlet.encode_invited(
invited = yield self.encode_invited(
sync_result.invited, time_now, access_token_id,
event_formatter,
)
archived = SyncRestServlet.encode_archived(
archived = yield self.encode_archived(
sync_result.archived, time_now, access_token_id,
filter.event_fields,
event_formatter,
)
return {
defer.returnValue({
"account_data": {"events": sync_result.account_data},
"to_device": {"events": sync_result.to_device},
"device_lists": {
@ -222,7 +222,7 @@ class SyncRestServlet(RestServlet):
},
"device_one_time_keys_count": sync_result.device_one_time_keys_count,
"next_batch": sync_result.next_batch.to_string(),
}
})
@staticmethod
def encode_presence(events, time_now):
@ -239,8 +239,8 @@ class SyncRestServlet(RestServlet):
]
}
@staticmethod
def encode_joined(rooms, time_now, token_id, event_fields, event_formatter):
@defer.inlineCallbacks
def encode_joined(self, rooms, time_now, token_id, event_fields, event_formatter):
"""
Encode the joined rooms in a sync result
@ -261,15 +261,15 @@ class SyncRestServlet(RestServlet):
"""
joined = {}
for room in rooms:
joined[room.room_id] = SyncRestServlet.encode_room(
joined[room.room_id] = yield self.encode_room(
room, time_now, token_id, joined=True, only_fields=event_fields,
event_formatter=event_formatter,
)
return joined
defer.returnValue(joined)
@staticmethod
def encode_invited(rooms, time_now, token_id, event_formatter):
@defer.inlineCallbacks
def encode_invited(self, rooms, time_now, token_id, event_formatter):
"""
Encode the invited rooms in a sync result
@ -289,7 +289,7 @@ class SyncRestServlet(RestServlet):
"""
invited = {}
for room in rooms:
invite = serialize_event(
invite = yield self._event_serializer.serialize_event(
room.invite, time_now, token_id=token_id,
event_format=event_formatter,
is_invite=True,
@ -302,10 +302,10 @@ class SyncRestServlet(RestServlet):
"invite_state": {"events": invited_state}
}
return invited
defer.returnValue(invited)
@staticmethod
def encode_archived(rooms, time_now, token_id, event_fields, event_formatter):
@defer.inlineCallbacks
def encode_archived(self, rooms, time_now, token_id, event_fields, event_formatter):
"""
Encode the archived rooms in a sync result
@ -326,17 +326,17 @@ class SyncRestServlet(RestServlet):
"""
joined = {}
for room in rooms:
joined[room.room_id] = SyncRestServlet.encode_room(
joined[room.room_id] = yield self.encode_room(
room, time_now, token_id, joined=False,
only_fields=event_fields,
event_formatter=event_formatter,
)
return joined
defer.returnValue(joined)
@staticmethod
@defer.inlineCallbacks
def encode_room(
room, time_now, token_id, joined,
self, room, time_now, token_id, joined,
only_fields, event_formatter,
):
"""
@ -355,9 +355,10 @@ class SyncRestServlet(RestServlet):
Returns:
dict[str, object]: the room, encoded in our response format
"""
def serialize(event):
return serialize_event(
event, time_now, token_id=token_id,
def serialize(events):
return self._event_serializer.serialize_events(
events, time_now=time_now,
token_id=token_id,
event_format=event_formatter,
only_event_fields=only_fields,
)
@ -376,8 +377,8 @@ class SyncRestServlet(RestServlet):
event.event_id, room.room_id, event.room_id,
)
serialized_state = [serialize(e) for e in state_events]
serialized_timeline = [serialize(e) for e in timeline_events]
serialized_state = yield serialize(state_events)
serialized_timeline = yield serialize(timeline_events)
account_data = room.account_data
@ -397,7 +398,7 @@ class SyncRestServlet(RestServlet):
result["unread_notifications"] = room.unread_notifications
result["summary"] = room.summary
return result
defer.returnValue(result)
def register_servlets(hs, http_server):

5
synapse/server.py
View File

@ -35,6 +35,7 @@ from synapse.crypto import context_factory
from synapse.crypto.keyring import Keyring
from synapse.events.builder import EventBuilderFactory
from synapse.events.spamcheck import SpamChecker
from synapse.events.utils import EventClientSerializer
from synapse.federation.federation_client import FederationClient
from synapse.federation.federation_server import (
FederationHandlerRegistry,
@ -185,6 +186,7 @@ class HomeServer(object):
'sendmail',
'registration_handler',
'account_validity_handler',
'event_client_serializer',
]
REQUIRED_ON_MASTER_STARTUP = [
@ -511,6 +513,9 @@ class HomeServer(object):
def build_account_validity_handler(self):
return AccountValidityHandler(self)
def build_event_client_serializer(self):
return EventClientSerializer(self)
def remove_pusher(self, app_id, push_key, user_id):
return self.get_pusherpool().remove_pusher(app_id, push_key, user_id)

19
synapse/util/async_helpers.py
View File

@ -156,6 +156,25 @@ def concurrently_execute(func, args, limit):
], consumeErrors=True)).addErrback(unwrapFirstError)
def yieldable_gather_results(func, iter, *args, **kwargs):
"""Executes the function with each argument concurrently.
Args:
func (func): Function to execute that returns a Deferred
iter (iter): An iterable that yields items that get passed as the first
argument to the function
*args: Arguments to be passed to each call to func
Returns
Deferred[list]: Resolved when all functions have been invoked, or errors if
one of the function calls fails.
"""
return logcontext.make_deferred_yieldable(defer.gatherResults([
run_in_background(func, item, *args, **kwargs)
for item in iter
], consumeErrors=True)).addErrback(unwrapFirstError)
class Linearizer(object):
"""Limits concurrent access to resources based on a key. Useful to ensure
only a few things happen at a time on a given resource.