mirror of
https://git.anonymousland.org/anonymousland/synapse.git
synced 2024-12-22 15:35:00 -05:00
91 lines
2.9 KiB
Python
91 lines
2.9 KiB
Python
# Copyright 2020 The Matrix.org Foundation C.I.C.
|
|
#
|
|
# 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.
|
|
|
|
import logging
|
|
from typing import TYPE_CHECKING, Tuple
|
|
|
|
from twisted.web.server import Request
|
|
|
|
from synapse.api.errors import SynapseError
|
|
from synapse.http.server import HttpServer
|
|
from synapse.http.servlet import parse_integer
|
|
from synapse.replication.http._base import ReplicationEndpoint
|
|
from synapse.types import JsonDict
|
|
|
|
if TYPE_CHECKING:
|
|
from synapse.server import HomeServer
|
|
|
|
logger = logging.getLogger(__name__)
|
|
|
|
|
|
class ReplicationGetStreamUpdates(ReplicationEndpoint):
|
|
"""Fetches stream updates from a server. Used for streams not persisted to
|
|
the database, e.g. typing notifications.
|
|
|
|
The API looks like:
|
|
|
|
GET /_synapse/replication/get_repl_stream_updates/<stream name>?from_token=0&to_token=10
|
|
|
|
200 OK
|
|
|
|
{
|
|
updates: [ ... ],
|
|
upto_token: 10,
|
|
limited: False,
|
|
}
|
|
|
|
If there are more rows than can sensibly be returned in one lump, `limited` will be
|
|
set to true, and the caller should call again with a new `from_token`.
|
|
|
|
"""
|
|
|
|
NAME = "get_repl_stream_updates"
|
|
PATH_ARGS = ("stream_name",)
|
|
METHOD = "GET"
|
|
|
|
def __init__(self, hs: "HomeServer"):
|
|
super().__init__(hs)
|
|
|
|
self._instance_name = hs.get_instance_name()
|
|
self.streams = hs.get_replication_streams()
|
|
|
|
@staticmethod
|
|
async def _serialize_payload( # type: ignore[override]
|
|
stream_name: str, from_token: int, upto_token: int
|
|
) -> JsonDict:
|
|
return {"from_token": from_token, "upto_token": upto_token}
|
|
|
|
async def _handle_request( # type: ignore[override]
|
|
self, request: Request, stream_name: str
|
|
) -> Tuple[int, JsonDict]:
|
|
stream = self.streams.get(stream_name)
|
|
if stream is None:
|
|
raise SynapseError(400, "Unknown stream")
|
|
|
|
from_token = parse_integer(request, "from_token", required=True)
|
|
upto_token = parse_integer(request, "upto_token", required=True)
|
|
|
|
updates, upto_token, limited = await stream.get_updates_since(
|
|
self._instance_name, from_token, upto_token
|
|
)
|
|
|
|
return (
|
|
200,
|
|
{"updates": updates, "upto_token": upto_token, "limited": limited},
|
|
)
|
|
|
|
|
|
def register_servlets(hs: "HomeServer", http_server: HttpServer) -> None:
|
|
ReplicationGetStreamUpdates(hs).register(http_server)
|