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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.constants import Direction
from synapse.api.errors import Codes, NotFoundError, SynapseError
from synapse.federation.transport.server import Authenticator
from synapse.http.servlet import RestServlet, parse_enum, 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$")
def __init__(self, hs: "HomeServer"):
self._auth = hs.get_auth()
self._store = hs.get_datastores().main
async def on_GET(self, request: SynapseRequest) -> Tuple[int, JsonDict]:
await assert_requester_is_admin(self._auth, request)
start = parse_integer(request, "from", default=0)
limit = parse_integer(request, "limit", default=100)
if start < 0:
raise SynapseError(
HTTPStatus.BAD_REQUEST,
"Query parameter from must be a string representing a positive integer.",
errcode=Codes.INVALID_PARAM,
)
if limit < 0:
raise SynapseError(
HTTPStatus.BAD_REQUEST,
"Query parameter limit must be a string representing a positive integer.",
errcode=Codes.INVALID_PARAM,
)
destination = parse_string(request, "destination")
order_by = parse_string(
request,
"order_by",
default=DestinationSortOrder.DESTINATION.value,
allowed_values=[dest.value for dest in DestinationSortOrder],
)
direction = parse_enum(request, "dir", Direction, default=Direction.FORWARDS)
destinations, total = await self._store.get_destinations_paginate(
start, limit, destination, order_by, direction
)
response = {
"destinations": [
{
"destination": r[0],
"retry_last_ts": r[1] or 0,
"retry_interval": r[2] or 0,
"failure_ts": r[3],
"last_successful_stream_ordering": r[4],
}
for r in destinations
],
"total": total,
}
if (start + limit) < total:
response["next_token"] = str(start + len(destinations))
return HTTPStatus.OK, response
class DestinationRestServlet(RestServlet):
"""Get details of a destination.
This needs user to have administrator access in Synapse.
GET /_synapse/admin/v1/federation/destinations/<destination>
returns:
200 OK with details of a destination if success otherwise an error.
"""
PATTERNS = admin_patterns("/federation/destinations/(?P<destination>[^/]*)$")
def __init__(self, hs: "HomeServer"):
self._auth = hs.get_auth()
self._store = hs.get_datastores().main
async def on_GET(
self, request: SynapseRequest, destination: str
) -> Tuple[int, JsonDict]:
await assert_requester_is_admin(self._auth, request)
if not await self._store.is_destination_known(destination):
raise NotFoundError("Unknown destination")
destination_retry_timings = await self._store.get_destination_retry_timings(
destination
)
last_successful_stream_ordering = (
await self._store.get_destination_last_successful_stream_ordering(
destination
)
)
response: JsonDict = {
"destination": destination,
"last_successful_stream_ordering": last_successful_stream_ordering,
}
if destination_retry_timings:
response = {
**response,
"failure_ts": destination_retry_timings.failure_ts,
"retry_last_ts": destination_retry_timings.retry_last_ts,
"retry_interval": destination_retry_timings.retry_interval,
}
else:
response = {
**response,
"failure_ts": None,
"retry_last_ts": 0,
"retry_interval": 0,
}
return HTTPStatus.OK, response
class DestinationMembershipRestServlet(RestServlet):
"""Get list of rooms of a destination.
This needs user to have administrator access in Synapse.
GET /_synapse/admin/v1/federation/destinations/<destination>/rooms?from=0&limit=10
returns:
200 OK with a list of rooms if success otherwise an error.
The parameters `from` and `limit` are required only for pagination.
By default, a `limit` of 100 is used.
"""
PATTERNS = admin_patterns("/federation/destinations/(?P<destination>[^/]*)/rooms$")
def __init__(self, hs: "HomeServer"):
self._auth = hs.get_auth()
self._store = hs.get_datastores().main
async def on_GET(
self, request: SynapseRequest, destination: str
) -> Tuple[int, JsonDict]:
await assert_requester_is_admin(self._auth, request)
if not await self._store.is_destination_known(destination):
raise NotFoundError("Unknown destination")
start = parse_integer(request, "from", default=0)
limit = parse_integer(request, "limit", default=100)
if start < 0:
raise SynapseError(
HTTPStatus.BAD_REQUEST,
"Query parameter from must be a string representing a positive integer.",
errcode=Codes.INVALID_PARAM,
)
if limit < 0:
raise SynapseError(
HTTPStatus.BAD_REQUEST,
"Query parameter limit must be a string representing a positive integer.",
errcode=Codes.INVALID_PARAM,
)
direction = parse_enum(request, "dir", Direction, default=Direction.FORWARDS)
rooms, total = await self._store.get_destination_rooms_paginate(
destination, start, limit, direction
)
response = {
"rooms": [
{"room_id": room_id, "stream_ordering": stream_ordering}
for room_id, stream_ordering in rooms
],
"total": total,
}
if (start + limit) < total:
response["next_token"] = str(start + len(rooms))
return HTTPStatus.OK, response
class DestinationResetConnectionRestServlet(RestServlet):
"""Reset destinations' connection timeouts and wake it up.
This needs user to have administrator access in Synapse.
POST /_synapse/admin/v1/federation/destinations/<destination>/reset_connection
{}
returns:
200 OK otherwise an error.
"""
PATTERNS = admin_patterns(
"/federation/destinations/(?P<destination>[^/]+)/reset_connection$"
)
def __init__(self, hs: "HomeServer"):
self._auth = hs.get_auth()
self._store = hs.get_datastores().main
self._authenticator = Authenticator(hs)
async def on_POST(
self, request: SynapseRequest, destination: str
) -> Tuple[int, JsonDict]:
await assert_requester_is_admin(self._auth, request)
if not await self._store.is_destination_known(destination):
raise NotFoundError("Unknown destination")
retry_timings = await self._store.get_destination_retry_timings(destination)
if not (retry_timings and retry_timings.retry_last_ts):
raise SynapseError(
HTTPStatus.BAD_REQUEST,
"The retry timing does not need to be reset for this destination.",
)
# reset timings and wake up
await self._authenticator.reset_retry_timings(destination)
return HTTPStatus.OK, {}
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