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https://mau.dev/maunium/synapse.git
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6bf81a7a61
This makes the serialization of events synchronous (and it no longer access the database), but we must manually calculate and provide the bundled aggregations. Overall this should cause no change in behavior, but is prep work for other improvements.
103 lines
3.7 KiB
Python
103 lines
3.7 KiB
Python
# Copyright 2014-2016 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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"""This module contains REST servlets to do with event streaming, /events."""
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import logging
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from typing import TYPE_CHECKING, Dict, List, Tuple, Union
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from synapse.api.errors import SynapseError
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from synapse.http.server import HttpServer
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from synapse.http.servlet import RestServlet, parse_string
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from synapse.http.site import SynapseRequest
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from synapse.rest.client._base import client_patterns
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from synapse.streams.config import PaginationConfig
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from synapse.types import JsonDict
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if TYPE_CHECKING:
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from synapse.server import HomeServer
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logger = logging.getLogger(__name__)
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class EventStreamRestServlet(RestServlet):
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PATTERNS = client_patterns("/events$", v1=True)
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DEFAULT_LONGPOLL_TIME_MS = 30000
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def __init__(self, hs: "HomeServer"):
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super().__init__()
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self.event_stream_handler = hs.get_event_stream_handler()
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self.auth = hs.get_auth()
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self.store = hs.get_datastore()
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async def on_GET(self, request: SynapseRequest) -> Tuple[int, JsonDict]:
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requester = await self.auth.get_user_by_req(request, allow_guest=True)
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is_guest = requester.is_guest
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args: Dict[bytes, List[bytes]] = request.args # type: ignore
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if is_guest:
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if b"room_id" not in args:
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raise SynapseError(400, "Guest users must specify room_id param")
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room_id = parse_string(request, "room_id")
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pagin_config = await PaginationConfig.from_request(self.store, request)
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timeout = EventStreamRestServlet.DEFAULT_LONGPOLL_TIME_MS
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if b"timeout" in args:
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try:
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timeout = int(args[b"timeout"][0])
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except ValueError:
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raise SynapseError(400, "timeout must be in milliseconds.")
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as_client_event = b"raw" not in args
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chunk = await self.event_stream_handler.get_stream(
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requester.user.to_string(),
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pagin_config,
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timeout=timeout,
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as_client_event=as_client_event,
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affect_presence=(not is_guest),
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room_id=room_id,
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is_guest=is_guest,
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)
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return 200, chunk
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class EventRestServlet(RestServlet):
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PATTERNS = client_patterns("/events/(?P<event_id>[^/]*)$", v1=True)
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def __init__(self, hs: "HomeServer"):
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super().__init__()
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self.clock = hs.get_clock()
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self.event_handler = hs.get_event_handler()
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self.auth = hs.get_auth()
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self._event_serializer = hs.get_event_client_serializer()
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async def on_GET(
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self, request: SynapseRequest, event_id: str
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) -> Tuple[int, Union[str, JsonDict]]:
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requester = await self.auth.get_user_by_req(request)
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event = await self.event_handler.get_event(requester.user, None, event_id)
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time_now = self.clock.time_msec()
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if event:
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result = self._event_serializer.serialize_event(event, time_now)
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return 200, result
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else:
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return 404, "Event not found."
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def register_servlets(hs: "HomeServer", http_server: HttpServer) -> None:
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EventStreamRestServlet(hs).register(http_server)
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EventRestServlet(hs).register(http_server)
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