107 lines
3.8 KiB
Python
107 lines
3.8 KiB
Python
# Copyright 2014-2016 OpenMarket Ltd
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
# you may not use this file except in compliance with the License.
|
|
# You may obtain a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
# See the License for the specific language governing permissions and
|
|
# limitations under the License.
|
|
|
|
"""This module contains REST servlets to do with event streaming, /events."""
|
|
import logging
|
|
from typing import TYPE_CHECKING, Dict, List, Tuple, Union
|
|
|
|
from synapse.api.errors import SynapseError
|
|
from synapse.events.utils import SerializeEventConfig
|
|
from synapse.http.server import HttpServer
|
|
from synapse.http.servlet import RestServlet, parse_string
|
|
from synapse.http.site import SynapseRequest
|
|
from synapse.rest.client._base import client_patterns
|
|
from synapse.streams.config import PaginationConfig
|
|
from synapse.types import JsonDict
|
|
|
|
if TYPE_CHECKING:
|
|
from synapse.server import HomeServer
|
|
|
|
logger = logging.getLogger(__name__)
|
|
|
|
|
|
class EventStreamRestServlet(RestServlet):
|
|
PATTERNS = client_patterns("/events$", v1=True)
|
|
|
|
DEFAULT_LONGPOLL_TIME_MS = 30000
|
|
|
|
def __init__(self, hs: "HomeServer"):
|
|
super().__init__()
|
|
self.event_stream_handler = hs.get_event_stream_handler()
|
|
self.auth = hs.get_auth()
|
|
self.store = hs.get_datastores().main
|
|
|
|
async def on_GET(self, request: SynapseRequest) -> Tuple[int, JsonDict]:
|
|
requester = await self.auth.get_user_by_req(request, allow_guest=True)
|
|
args: Dict[bytes, List[bytes]] = request.args # type: ignore
|
|
if requester.is_guest:
|
|
if b"room_id" not in args:
|
|
raise SynapseError(400, "Guest users must specify room_id param")
|
|
room_id = parse_string(request, "room_id")
|
|
|
|
pagin_config = await PaginationConfig.from_request(
|
|
self.store, request, default_limit=10
|
|
)
|
|
timeout = EventStreamRestServlet.DEFAULT_LONGPOLL_TIME_MS
|
|
if b"timeout" in args:
|
|
try:
|
|
timeout = int(args[b"timeout"][0])
|
|
except ValueError:
|
|
raise SynapseError(400, "timeout must be in milliseconds.")
|
|
|
|
as_client_event = b"raw" not in args
|
|
|
|
chunk = await self.event_stream_handler.get_stream(
|
|
requester,
|
|
pagin_config,
|
|
timeout=timeout,
|
|
as_client_event=as_client_event,
|
|
affect_presence=(not requester.is_guest),
|
|
room_id=room_id,
|
|
)
|
|
|
|
return 200, chunk
|
|
|
|
|
|
class EventRestServlet(RestServlet):
|
|
PATTERNS = client_patterns("/events/(?P<event_id>[^/]*)$", v1=True)
|
|
|
|
def __init__(self, hs: "HomeServer"):
|
|
super().__init__()
|
|
self.clock = hs.get_clock()
|
|
self.event_handler = hs.get_event_handler()
|
|
self.auth = hs.get_auth()
|
|
self._event_serializer = hs.get_event_client_serializer()
|
|
|
|
async def on_GET(
|
|
self, request: SynapseRequest, event_id: str
|
|
) -> Tuple[int, Union[str, JsonDict]]:
|
|
requester = await self.auth.get_user_by_req(request)
|
|
event = await self.event_handler.get_event(requester.user, None, event_id)
|
|
|
|
if event:
|
|
result = self._event_serializer.serialize_event(
|
|
event,
|
|
self.clock.time_msec(),
|
|
config=SerializeEventConfig(requester=requester),
|
|
)
|
|
return 200, result
|
|
else:
|
|
return 404, "Event not found."
|
|
|
|
|
|
def register_servlets(hs: "HomeServer", http_server: HttpServer) -> None:
|
|
EventStreamRestServlet(hs).register(http_server)
|
|
EventRestServlet(hs).register(http_server)
|