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# Copyright 2021 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 http import HTTPStatus
from typing import TYPE_CHECKING, Tuple
from synapse.api.errors import Codes, NotFoundError, SynapseError
from synapse.http.servlet import RestServlet, parse_integer, parse_string
from synapse.http.site import SynapseRequest
from synapse.rest.admin._base import admin_patterns, assert_requester_is_admin
from synapse.storage.databases.main.transactions import DestinationSortOrder
from synapse.types import JsonDict
if TYPE_CHECKING:
from synapse.server import HomeServer
logger = logging.getLogger(__name__)
class ListDestinationsRestServlet(RestServlet):
"""Get request to list all destinations.
This needs user to have administrator access in Synapse.
GET /_synapse/admin/v1/federation/destinations?from=0&limit=10
returns:
200 OK with list of destinations if success otherwise an error.
The parameters `from` and `limit` are required only for pagination.
By default, a `limit` of 100 is used.
The parameter `destination` can be used to filter by destination.
The parameter `order_by` can be used to order the result.
"""
PATTERNS = admin_patterns("/federation/destinations$")
def __init__(self, hs: "HomeServer"):
self._auth = hs.get_auth()
self._store = hs.get_datastore()
async def on_GET(self, request: SynapseRequest) -> Tuple[int, JsonDict]:
await assert_requester_is_admin(self._auth, request)
start = parse_integer(request, "from", default=0)
limit = parse_integer(request, "limit", default=100)
if start < 0:
raise SynapseError(
HTTPStatus.BAD_REQUEST,
"Query parameter from must be a string representing a positive integer.",
errcode=Codes.INVALID_PARAM,
)
if limit < 0:
raise SynapseError(
HTTPStatus.BAD_REQUEST,
"Query parameter limit must be a string representing a positive integer.",
errcode=Codes.INVALID_PARAM,
)
destination = parse_string(request, "destination")
order_by = parse_string(
request,
"order_by",
default=DestinationSortOrder.DESTINATION.value,
allowed_values=[dest.value for dest in DestinationSortOrder],
)
direction = parse_string(request, "dir", default="f", allowed_values=("f", "b"))
destinations, total = await self._store.get_destinations_paginate(
start, limit, destination, order_by, direction
)
response = {"destinations": destinations, "total": total}
if (start + limit) < total:
response["next_token"] = str(start + len(destinations))
return HTTPStatus.OK, response
class DestinationsRestServlet(RestServlet):
"""Get details of a destination.
This needs user to have administrator access in Synapse.
GET /_synapse/admin/v1/federation/destinations/<destination>
returns:
200 OK with details of a destination if success otherwise an error.
"""
PATTERNS = admin_patterns("/federation/destinations/(?P<destination>[^/]+)$")
def __init__(self, hs: "HomeServer"):
self._auth = hs.get_auth()
self._store = hs.get_datastore()
async def on_GET(
self, request: SynapseRequest, destination: str
) -> Tuple[int, JsonDict]:
await assert_requester_is_admin(self._auth, request)
destination_retry_timings = await self._store.get_destination_retry_timings(
destination
)
if not destination_retry_timings:
raise NotFoundError("Unknown destination")
last_successful_stream_ordering = (
await self._store.get_destination_last_successful_stream_ordering(
destination
)
)
response = {
"destination": destination,
"failure_ts": destination_retry_timings.failure_ts,
"retry_last_ts": destination_retry_timings.retry_last_ts,
"retry_interval": destination_retry_timings.retry_interval,
"last_successful_stream_ordering": last_successful_stream_ordering,
}
return HTTPStatus.OK, response
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