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![Patrick Cloke](/assets/img/avatar_default.png)
...and various code supporting it. The /spaces endpoint was from an old version of MSC2946 and included both a Client-Server and Server-Server API. Note that the unstable /hierarchy endpoint (from the final version of MSC2946) is not yet removed.
760 lines
23 KiB
Python
760 lines
23 KiB
Python
# Copyright 2021 The Matrix.org Foundation C.I.C.
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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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import logging
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from typing import (
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TYPE_CHECKING,
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Dict,
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List,
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Mapping,
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Optional,
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Sequence,
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Tuple,
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Type,
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Union,
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)
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from matrix_common.versionstring import get_distribution_version_string
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from typing_extensions import Literal
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from synapse.api.errors import Codes, SynapseError
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from synapse.api.room_versions import RoomVersions
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from synapse.api.urls import FEDERATION_UNSTABLE_PREFIX, FEDERATION_V2_PREFIX
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from synapse.federation.transport.server._base import (
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Authenticator,
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BaseFederationServlet,
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)
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from synapse.http.servlet import (
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parse_boolean_from_args,
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parse_integer_from_args,
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parse_string_from_args,
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parse_strings_from_args,
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)
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from synapse.types import JsonDict
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from synapse.util.ratelimitutils import FederationRateLimiter
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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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issue_8631_logger = logging.getLogger("synapse.8631_debug")
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class BaseFederationServerServlet(BaseFederationServlet):
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"""Abstract base class for federation servlet classes which provides a federation server handler.
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See BaseFederationServlet for more information.
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"""
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def __init__(
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self,
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hs: "HomeServer",
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authenticator: Authenticator,
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ratelimiter: FederationRateLimiter,
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server_name: str,
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):
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super().__init__(hs, authenticator, ratelimiter, server_name)
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self.handler = hs.get_federation_server()
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class FederationSendServlet(BaseFederationServerServlet):
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PATH = "/send/(?P<transaction_id>[^/]*)/?"
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# We ratelimit manually in the handler as we queue up the requests and we
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# don't want to fill up the ratelimiter with blocked requests.
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RATELIMIT = False
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# This is when someone is trying to send us a bunch of data.
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async def on_PUT(
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self,
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origin: str,
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content: JsonDict,
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query: Dict[bytes, List[bytes]],
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transaction_id: str,
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) -> Tuple[int, JsonDict]:
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"""Called on PUT /send/<transaction_id>/
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Args:
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transaction_id: The transaction_id associated with this request. This
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is *not* None.
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Returns:
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Tuple of `(code, response)`, where
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`response` is a python dict to be converted into JSON that is
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used as the response body.
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"""
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# Parse the request
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try:
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transaction_data = content
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logger.debug("Decoded %s: %s", transaction_id, str(transaction_data))
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logger.info(
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"Received txn %s from %s. (PDUs: %d, EDUs: %d)",
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transaction_id,
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origin,
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len(transaction_data.get("pdus", [])),
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len(transaction_data.get("edus", [])),
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)
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if issue_8631_logger.isEnabledFor(logging.DEBUG):
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DEVICE_UPDATE_EDUS = ["m.device_list_update", "m.signing_key_update"]
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device_list_updates = [
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edu.get("content", {})
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for edu in transaction_data.get("edus", [])
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if edu.get("edu_type") in DEVICE_UPDATE_EDUS
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]
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if device_list_updates:
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issue_8631_logger.debug(
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"received transaction [%s] including device list updates: %s",
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transaction_id,
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device_list_updates,
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)
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except Exception as e:
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logger.exception(e)
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return 400, {"error": "Invalid transaction"}
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code, response = await self.handler.on_incoming_transaction(
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origin, transaction_id, self.server_name, transaction_data
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)
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return code, response
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class FederationEventServlet(BaseFederationServerServlet):
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PATH = "/event/(?P<event_id>[^/]*)/?"
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# This is when someone asks for a data item for a given server data_id pair.
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async def on_GET(
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self,
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origin: str,
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content: Literal[None],
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query: Dict[bytes, List[bytes]],
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event_id: str,
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) -> Tuple[int, Union[JsonDict, str]]:
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return await self.handler.on_pdu_request(origin, event_id)
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class FederationStateV1Servlet(BaseFederationServerServlet):
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PATH = "/state/(?P<room_id>[^/]*)/?"
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# This is when someone asks for all data for a given room.
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async def on_GET(
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self,
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origin: str,
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content: Literal[None],
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query: Dict[bytes, List[bytes]],
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room_id: str,
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) -> Tuple[int, JsonDict]:
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return await self.handler.on_room_state_request(
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origin,
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room_id,
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parse_string_from_args(query, "event_id", None, required=False),
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)
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class FederationStateIdsServlet(BaseFederationServerServlet):
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PATH = "/state_ids/(?P<room_id>[^/]*)/?"
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async def on_GET(
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self,
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origin: str,
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content: Literal[None],
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query: Dict[bytes, List[bytes]],
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room_id: str,
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) -> Tuple[int, JsonDict]:
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return await self.handler.on_state_ids_request(
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origin,
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room_id,
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parse_string_from_args(query, "event_id", None, required=True),
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)
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class FederationBackfillServlet(BaseFederationServerServlet):
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PATH = "/backfill/(?P<room_id>[^/]*)/?"
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async def on_GET(
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self,
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origin: str,
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content: Literal[None],
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query: Dict[bytes, List[bytes]],
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room_id: str,
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) -> Tuple[int, JsonDict]:
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versions = [x.decode("ascii") for x in query[b"v"]]
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limit = parse_integer_from_args(query, "limit", None)
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if not limit:
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return 400, {"error": "Did not include limit param"}
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return await self.handler.on_backfill_request(origin, room_id, versions, limit)
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class FederationTimestampLookupServlet(BaseFederationServerServlet):
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"""
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API endpoint to fetch the `event_id` of the closest event to the given
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timestamp (`ts` query parameter) in the given direction (`dir` query
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parameter).
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Useful for other homeservers when they're unable to find an event locally.
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`ts` is a timestamp in milliseconds where we will find the closest event in
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the given direction.
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`dir` can be `f` or `b` to indicate forwards and backwards in time from the
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given timestamp.
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GET /_matrix/federation/unstable/org.matrix.msc3030/timestamp_to_event/<roomID>?ts=<timestamp>&dir=<direction>
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{
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"event_id": ...
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}
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"""
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PATH = "/timestamp_to_event/(?P<room_id>[^/]*)/?"
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PREFIX = FEDERATION_UNSTABLE_PREFIX + "/org.matrix.msc3030"
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async def on_GET(
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self,
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origin: str,
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content: Literal[None],
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query: Dict[bytes, List[bytes]],
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room_id: str,
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) -> Tuple[int, JsonDict]:
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timestamp = parse_integer_from_args(query, "ts", required=True)
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direction = parse_string_from_args(
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query, "dir", default="f", allowed_values=["f", "b"], required=True
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)
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return await self.handler.on_timestamp_to_event_request(
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origin, room_id, timestamp, direction
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)
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class FederationQueryServlet(BaseFederationServerServlet):
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PATH = "/query/(?P<query_type>[^/]*)"
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# This is when we receive a server-server Query
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async def on_GET(
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self,
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origin: str,
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content: Literal[None],
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query: Dict[bytes, List[bytes]],
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query_type: str,
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) -> Tuple[int, JsonDict]:
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args = {k.decode("utf8"): v[0].decode("utf-8") for k, v in query.items()}
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args["origin"] = origin
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return await self.handler.on_query_request(query_type, args)
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class FederationMakeJoinServlet(BaseFederationServerServlet):
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PATH = "/make_join/(?P<room_id>[^/]*)/(?P<user_id>[^/]*)"
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async def on_GET(
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self,
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origin: str,
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content: Literal[None],
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query: Dict[bytes, List[bytes]],
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room_id: str,
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user_id: str,
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) -> Tuple[int, JsonDict]:
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"""
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Args:
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origin: The authenticated server_name of the calling server
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content: (GETs don't have bodies)
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query: Query params from the request.
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**kwargs: the dict mapping keys to path components as specified in
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the path match regexp.
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Returns:
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Tuple of (response code, response object)
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"""
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supported_versions = parse_strings_from_args(query, "ver", encoding="utf-8")
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if supported_versions is None:
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supported_versions = ["1"]
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result = await self.handler.on_make_join_request(
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origin, room_id, user_id, supported_versions=supported_versions
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)
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return 200, result
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class FederationMakeLeaveServlet(BaseFederationServerServlet):
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PATH = "/make_leave/(?P<room_id>[^/]*)/(?P<user_id>[^/]*)"
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async def on_GET(
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self,
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origin: str,
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content: Literal[None],
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query: Dict[bytes, List[bytes]],
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room_id: str,
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user_id: str,
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) -> Tuple[int, JsonDict]:
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result = await self.handler.on_make_leave_request(origin, room_id, user_id)
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return 200, result
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class FederationV1SendLeaveServlet(BaseFederationServerServlet):
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PATH = "/send_leave/(?P<room_id>[^/]*)/(?P<event_id>[^/]*)"
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async def on_PUT(
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self,
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origin: str,
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content: JsonDict,
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query: Dict[bytes, List[bytes]],
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room_id: str,
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event_id: str,
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) -> Tuple[int, Tuple[int, JsonDict]]:
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result = await self.handler.on_send_leave_request(origin, content, room_id)
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return 200, (200, result)
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class FederationV2SendLeaveServlet(BaseFederationServerServlet):
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PATH = "/send_leave/(?P<room_id>[^/]*)/(?P<event_id>[^/]*)"
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PREFIX = FEDERATION_V2_PREFIX
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async def on_PUT(
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self,
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origin: str,
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content: JsonDict,
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query: Dict[bytes, List[bytes]],
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room_id: str,
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event_id: str,
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) -> Tuple[int, JsonDict]:
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result = await self.handler.on_send_leave_request(origin, content, room_id)
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return 200, result
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class FederationMakeKnockServlet(BaseFederationServerServlet):
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PATH = "/make_knock/(?P<room_id>[^/]*)/(?P<user_id>[^/]*)"
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async def on_GET(
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self,
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origin: str,
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content: Literal[None],
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query: Dict[bytes, List[bytes]],
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room_id: str,
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user_id: str,
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) -> Tuple[int, JsonDict]:
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# Retrieve the room versions the remote homeserver claims to support
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supported_versions = parse_strings_from_args(
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query, "ver", required=True, encoding="utf-8"
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)
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result = await self.handler.on_make_knock_request(
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origin, room_id, user_id, supported_versions=supported_versions
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)
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return 200, result
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class FederationV1SendKnockServlet(BaseFederationServerServlet):
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PATH = "/send_knock/(?P<room_id>[^/]*)/(?P<event_id>[^/]*)"
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async def on_PUT(
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self,
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origin: str,
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content: JsonDict,
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query: Dict[bytes, List[bytes]],
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room_id: str,
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event_id: str,
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) -> Tuple[int, JsonDict]:
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result = await self.handler.on_send_knock_request(origin, content, room_id)
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return 200, result
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class FederationEventAuthServlet(BaseFederationServerServlet):
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PATH = "/event_auth/(?P<room_id>[^/]*)/(?P<event_id>[^/]*)"
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async def on_GET(
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self,
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origin: str,
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content: Literal[None],
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query: Dict[bytes, List[bytes]],
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room_id: str,
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event_id: str,
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) -> Tuple[int, JsonDict]:
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return await self.handler.on_event_auth(origin, room_id, event_id)
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class FederationV1SendJoinServlet(BaseFederationServerServlet):
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PATH = "/send_join/(?P<room_id>[^/]*)/(?P<event_id>[^/]*)"
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async def on_PUT(
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self,
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origin: str,
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content: JsonDict,
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query: Dict[bytes, List[bytes]],
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room_id: str,
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event_id: str,
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) -> Tuple[int, Tuple[int, JsonDict]]:
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# TODO(paul): assert that event_id parsed from path actually
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# match those given in content
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result = await self.handler.on_send_join_request(origin, content, room_id)
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return 200, (200, result)
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class FederationV2SendJoinServlet(BaseFederationServerServlet):
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PATH = "/send_join/(?P<room_id>[^/]*)/(?P<event_id>[^/]*)"
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PREFIX = FEDERATION_V2_PREFIX
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def __init__(
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self,
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hs: "HomeServer",
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authenticator: Authenticator,
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ratelimiter: FederationRateLimiter,
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server_name: str,
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):
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super().__init__(hs, authenticator, ratelimiter, server_name)
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self._msc3706_enabled = hs.config.experimental.msc3706_enabled
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async def on_PUT(
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self,
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origin: str,
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content: JsonDict,
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query: Dict[bytes, List[bytes]],
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room_id: str,
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event_id: str,
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) -> Tuple[int, JsonDict]:
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# TODO(paul): assert that event_id parsed from path actually
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# match those given in content
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partial_state = False
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if self._msc3706_enabled:
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partial_state = parse_boolean_from_args(
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query, "org.matrix.msc3706.partial_state", default=False
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)
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result = await self.handler.on_send_join_request(
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origin, content, room_id, caller_supports_partial_state=partial_state
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)
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return 200, result
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class FederationV1InviteServlet(BaseFederationServerServlet):
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PATH = "/invite/(?P<room_id>[^/]*)/(?P<event_id>[^/]*)"
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async def on_PUT(
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self,
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origin: str,
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content: JsonDict,
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query: Dict[bytes, List[bytes]],
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room_id: str,
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event_id: str,
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) -> Tuple[int, Tuple[int, JsonDict]]:
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# We don't get a room version, so we have to assume its EITHER v1 or
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# v2. This is "fine" as the only difference between V1 and V2 is the
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# state resolution algorithm, and we don't use that for processing
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# invites
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result = await self.handler.on_invite_request(
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origin, content, room_version_id=RoomVersions.V1.identifier
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)
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# V1 federation API is defined to return a content of `[200, {...}]`
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# due to a historical bug.
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return 200, (200, result)
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class FederationV2InviteServlet(BaseFederationServerServlet):
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PATH = "/invite/(?P<room_id>[^/]*)/(?P<event_id>[^/]*)"
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PREFIX = FEDERATION_V2_PREFIX
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async def on_PUT(
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self,
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origin: str,
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content: JsonDict,
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query: Dict[bytes, List[bytes]],
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room_id: str,
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event_id: str,
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) -> Tuple[int, JsonDict]:
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# TODO(paul): assert that room_id/event_id parsed from path actually
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# match those given in content
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room_version = content["room_version"]
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event = content["event"]
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invite_room_state = content["invite_room_state"]
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# Synapse expects invite_room_state to be in unsigned, as it is in v1
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# API
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event.setdefault("unsigned", {})["invite_room_state"] = invite_room_state
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result = await self.handler.on_invite_request(
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origin, event, room_version_id=room_version
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)
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return 200, result
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class FederationThirdPartyInviteExchangeServlet(BaseFederationServerServlet):
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PATH = "/exchange_third_party_invite/(?P<room_id>[^/]*)"
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async def on_PUT(
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self,
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origin: str,
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content: JsonDict,
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query: Dict[bytes, List[bytes]],
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room_id: str,
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) -> Tuple[int, JsonDict]:
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await self.handler.on_exchange_third_party_invite_request(content)
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return 200, {}
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class FederationClientKeysQueryServlet(BaseFederationServerServlet):
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PATH = "/user/keys/query"
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async def on_POST(
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self, origin: str, content: JsonDict, query: Dict[bytes, List[bytes]]
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) -> Tuple[int, JsonDict]:
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return await self.handler.on_query_client_keys(origin, content)
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class FederationUserDevicesQueryServlet(BaseFederationServerServlet):
|
|
PATH = "/user/devices/(?P<user_id>[^/]*)"
|
|
|
|
async def on_GET(
|
|
self,
|
|
origin: str,
|
|
content: Literal[None],
|
|
query: Dict[bytes, List[bytes]],
|
|
user_id: str,
|
|
) -> Tuple[int, JsonDict]:
|
|
return await self.handler.on_query_user_devices(origin, user_id)
|
|
|
|
|
|
class FederationClientKeysClaimServlet(BaseFederationServerServlet):
|
|
PATH = "/user/keys/claim"
|
|
|
|
async def on_POST(
|
|
self, origin: str, content: JsonDict, query: Dict[bytes, List[bytes]]
|
|
) -> Tuple[int, JsonDict]:
|
|
response = await self.handler.on_claim_client_keys(origin, content)
|
|
return 200, response
|
|
|
|
|
|
class FederationGetMissingEventsServlet(BaseFederationServerServlet):
|
|
# TODO(paul): Why does this path alone end with "/?" optional?
|
|
PATH = "/get_missing_events/(?P<room_id>[^/]*)/?"
|
|
|
|
async def on_POST(
|
|
self,
|
|
origin: str,
|
|
content: JsonDict,
|
|
query: Dict[bytes, List[bytes]],
|
|
room_id: str,
|
|
) -> Tuple[int, JsonDict]:
|
|
limit = int(content.get("limit", 10))
|
|
earliest_events = content.get("earliest_events", [])
|
|
latest_events = content.get("latest_events", [])
|
|
|
|
result = await self.handler.on_get_missing_events(
|
|
origin,
|
|
room_id=room_id,
|
|
earliest_events=earliest_events,
|
|
latest_events=latest_events,
|
|
limit=limit,
|
|
)
|
|
|
|
return 200, result
|
|
|
|
|
|
class On3pidBindServlet(BaseFederationServerServlet):
|
|
PATH = "/3pid/onbind"
|
|
|
|
REQUIRE_AUTH = False
|
|
|
|
async def on_POST(
|
|
self, origin: Optional[str], content: JsonDict, query: Dict[bytes, List[bytes]]
|
|
) -> Tuple[int, JsonDict]:
|
|
if "invites" in content:
|
|
last_exception = None
|
|
for invite in content["invites"]:
|
|
try:
|
|
if "signed" not in invite or "token" not in invite["signed"]:
|
|
message = (
|
|
"Rejecting received notification of third-"
|
|
"party invite without signed: %s" % (invite,)
|
|
)
|
|
logger.info(message)
|
|
raise SynapseError(400, message)
|
|
await self.handler.exchange_third_party_invite(
|
|
invite["sender"],
|
|
invite["mxid"],
|
|
invite["room_id"],
|
|
invite["signed"],
|
|
)
|
|
except Exception as e:
|
|
last_exception = e
|
|
if last_exception:
|
|
raise last_exception
|
|
return 200, {}
|
|
|
|
|
|
class FederationVersionServlet(BaseFederationServlet):
|
|
PATH = "/version"
|
|
|
|
REQUIRE_AUTH = False
|
|
|
|
async def on_GET(
|
|
self,
|
|
origin: Optional[str],
|
|
content: Literal[None],
|
|
query: Dict[bytes, List[bytes]],
|
|
) -> Tuple[int, JsonDict]:
|
|
return (
|
|
200,
|
|
{
|
|
"server": {
|
|
"name": "Synapse",
|
|
"version": get_distribution_version_string("matrix-synapse"),
|
|
}
|
|
},
|
|
)
|
|
|
|
|
|
class FederationRoomHierarchyServlet(BaseFederationServlet):
|
|
PATH = "/hierarchy/(?P<room_id>[^/]*)"
|
|
|
|
def __init__(
|
|
self,
|
|
hs: "HomeServer",
|
|
authenticator: Authenticator,
|
|
ratelimiter: FederationRateLimiter,
|
|
server_name: str,
|
|
):
|
|
super().__init__(hs, authenticator, ratelimiter, server_name)
|
|
self.handler = hs.get_room_summary_handler()
|
|
|
|
async def on_GET(
|
|
self,
|
|
origin: str,
|
|
content: Literal[None],
|
|
query: Mapping[bytes, Sequence[bytes]],
|
|
room_id: str,
|
|
) -> Tuple[int, JsonDict]:
|
|
suggested_only = parse_boolean_from_args(query, "suggested_only", default=False)
|
|
return 200, await self.handler.get_federation_hierarchy(
|
|
origin, room_id, suggested_only
|
|
)
|
|
|
|
|
|
class FederationRoomHierarchyUnstableServlet(FederationRoomHierarchyServlet):
|
|
PREFIX = FEDERATION_UNSTABLE_PREFIX + "/org.matrix.msc2946"
|
|
|
|
|
|
class RoomComplexityServlet(BaseFederationServlet):
|
|
"""
|
|
Indicates to other servers how complex (and therefore likely
|
|
resource-intensive) a public room this server knows about is.
|
|
"""
|
|
|
|
PATH = "/rooms/(?P<room_id>[^/]*)/complexity"
|
|
PREFIX = FEDERATION_UNSTABLE_PREFIX
|
|
|
|
def __init__(
|
|
self,
|
|
hs: "HomeServer",
|
|
authenticator: Authenticator,
|
|
ratelimiter: FederationRateLimiter,
|
|
server_name: str,
|
|
):
|
|
super().__init__(hs, authenticator, ratelimiter, server_name)
|
|
self._store = self.hs.get_datastores().main
|
|
|
|
async def on_GET(
|
|
self,
|
|
origin: str,
|
|
content: Literal[None],
|
|
query: Dict[bytes, List[bytes]],
|
|
room_id: str,
|
|
) -> Tuple[int, JsonDict]:
|
|
is_public = await self._store.is_room_world_readable_or_publicly_joinable(
|
|
room_id
|
|
)
|
|
|
|
if not is_public:
|
|
raise SynapseError(404, "Room not found", errcode=Codes.INVALID_PARAM)
|
|
|
|
complexity = await self._store.get_room_complexity(room_id)
|
|
return 200, complexity
|
|
|
|
|
|
class FederationAccountStatusServlet(BaseFederationServerServlet):
|
|
PATH = "/query/account_status"
|
|
PREFIX = FEDERATION_UNSTABLE_PREFIX + "/org.matrix.msc3720"
|
|
|
|
def __init__(
|
|
self,
|
|
hs: "HomeServer",
|
|
authenticator: Authenticator,
|
|
ratelimiter: FederationRateLimiter,
|
|
server_name: str,
|
|
):
|
|
super().__init__(hs, authenticator, ratelimiter, server_name)
|
|
self._account_handler = hs.get_account_handler()
|
|
|
|
async def on_POST(
|
|
self,
|
|
origin: str,
|
|
content: JsonDict,
|
|
query: Mapping[bytes, Sequence[bytes]],
|
|
room_id: str,
|
|
) -> Tuple[int, JsonDict]:
|
|
if "user_ids" not in content:
|
|
raise SynapseError(
|
|
400, "Required parameter 'user_ids' is missing", Codes.MISSING_PARAM
|
|
)
|
|
|
|
statuses, failures = await self._account_handler.get_account_statuses(
|
|
content["user_ids"],
|
|
allow_remote=False,
|
|
)
|
|
|
|
return 200, {"account_statuses": statuses, "failures": failures}
|
|
|
|
|
|
FEDERATION_SERVLET_CLASSES: Tuple[Type[BaseFederationServlet], ...] = (
|
|
FederationSendServlet,
|
|
FederationEventServlet,
|
|
FederationStateV1Servlet,
|
|
FederationStateIdsServlet,
|
|
FederationBackfillServlet,
|
|
FederationTimestampLookupServlet,
|
|
FederationQueryServlet,
|
|
FederationMakeJoinServlet,
|
|
FederationMakeLeaveServlet,
|
|
FederationEventServlet,
|
|
FederationV1SendJoinServlet,
|
|
FederationV2SendJoinServlet,
|
|
FederationV1SendLeaveServlet,
|
|
FederationV2SendLeaveServlet,
|
|
FederationV1InviteServlet,
|
|
FederationV2InviteServlet,
|
|
FederationGetMissingEventsServlet,
|
|
FederationEventAuthServlet,
|
|
FederationClientKeysQueryServlet,
|
|
FederationUserDevicesQueryServlet,
|
|
FederationClientKeysClaimServlet,
|
|
FederationThirdPartyInviteExchangeServlet,
|
|
On3pidBindServlet,
|
|
FederationVersionServlet,
|
|
RoomComplexityServlet,
|
|
FederationRoomHierarchyServlet,
|
|
FederationRoomHierarchyUnstableServlet,
|
|
FederationV1SendKnockServlet,
|
|
FederationMakeKnockServlet,
|
|
FederationAccountStatusServlet,
|
|
)
|