mirror of
https://mau.dev/maunium/synapse.git
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73d8ded0b0
In trying to use the MSC3026 busy presence status, the user's status would be set back to 'online' next time they synced. This change makes it so that syncing does not affect a user's presence status if it is currently set to 'busy': it must be removed through the presence API. The MSC defers to implementations on the behaviour of busy presence, so this ought to remain compatible with the MSC.
529 lines
20 KiB
Python
529 lines
20 KiB
Python
# Copyright 2015, 2016 OpenMarket Ltd
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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 itertools
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import logging
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from collections import defaultdict
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from typing import TYPE_CHECKING, Any, Dict, List, Optional, Tuple, Union
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from synapse.api.constants import Membership, PresenceState
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from synapse.api.errors import Codes, StoreError, SynapseError
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from synapse.api.filtering import FilterCollection
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from synapse.api.presence import UserPresenceState
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from synapse.events.utils import (
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SerializeEventConfig,
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format_event_for_client_v2_without_room_id,
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format_event_raw,
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)
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from synapse.handlers.presence import format_user_presence_state
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from synapse.handlers.sync import (
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ArchivedSyncResult,
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InvitedSyncResult,
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JoinedSyncResult,
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KnockedSyncResult,
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SyncConfig,
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SyncResult,
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)
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from synapse.http.server import HttpServer
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from synapse.http.servlet import RestServlet, parse_boolean, parse_integer, parse_string
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from synapse.http.site import SynapseRequest
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from synapse.logging.opentracing import trace
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from synapse.types import JsonDict, StreamToken
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from synapse.util import json_decoder
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from ._base import client_patterns, set_timeline_upper_limit
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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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class SyncRestServlet(RestServlet):
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"""
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GET parameters::
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timeout(int): How long to wait for new events in milliseconds.
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since(batch_token): Batch token when asking for incremental deltas.
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set_presence(str): What state the device presence should be set to.
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default is "online".
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filter(filter_id): A filter to apply to the events returned.
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Response JSON::
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{
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"next_batch": // batch token for the next /sync
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"presence": // presence data for the user.
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"rooms": {
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"join": { // Joined rooms being updated.
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"${room_id}": { // Id of the room being updated
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"event_map": // Map of EventID -> event JSON.
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"timeline": { // The recent events in the room if gap is "true"
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"limited": // Was the per-room event limit exceeded?
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// otherwise the next events in the room.
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"events": [] // list of EventIDs in the "event_map".
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"prev_batch": // back token for getting previous events.
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}
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"state": {"events": []} // list of EventIDs updating the
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// current state to be what it should
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// be at the end of the batch.
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"ephemeral": {"events": []} // list of event objects
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}
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},
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"invite": {}, // Invited rooms being updated.
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"leave": {} // Archived rooms being updated.
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}
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}
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"""
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PATTERNS = client_patterns("/sync$")
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ALLOWED_PRESENCE = {"online", "offline", "unavailable"}
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def __init__(self, hs: "HomeServer"):
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super().__init__()
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self.hs = hs
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self.auth = hs.get_auth()
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self.store = hs.get_datastores().main
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self.sync_handler = hs.get_sync_handler()
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self.clock = hs.get_clock()
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self.filtering = hs.get_filtering()
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self.presence_handler = hs.get_presence_handler()
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self._server_notices_sender = hs.get_server_notices_sender()
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self._event_serializer = hs.get_event_client_serializer()
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self._msc2654_enabled = hs.config.experimental.msc2654_enabled
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async def on_GET(self, request: SynapseRequest) -> Tuple[int, JsonDict]:
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# This will always be set by the time Twisted calls us.
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assert request.args is not None
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if b"from" in request.args:
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# /events used to use 'from', but /sync uses 'since'.
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# Lets be helpful and whine if we see a 'from'.
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raise SynapseError(
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400, "'from' is not a valid query parameter. Did you mean 'since'?"
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)
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requester = await self.auth.get_user_by_req(request, allow_guest=True)
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user = requester.user
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device_id = requester.device_id
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timeout = parse_integer(request, "timeout", default=0)
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since = parse_string(request, "since")
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set_presence = parse_string(
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request,
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"set_presence",
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default="online",
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allowed_values=self.ALLOWED_PRESENCE,
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)
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filter_id = parse_string(request, "filter")
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full_state = parse_boolean(request, "full_state", default=False)
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logger.debug(
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"/sync: user=%r, timeout=%r, since=%r, "
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"set_presence=%r, filter_id=%r, device_id=%r",
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user,
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timeout,
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since,
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set_presence,
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filter_id,
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device_id,
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)
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request_key = (user, timeout, since, filter_id, full_state, device_id)
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if filter_id is None:
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filter_collection = self.filtering.DEFAULT_FILTER_COLLECTION
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elif filter_id.startswith("{"):
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try:
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filter_object = json_decoder.decode(filter_id)
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set_timeline_upper_limit(
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filter_object, self.hs.config.server.filter_timeline_limit
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)
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except Exception:
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raise SynapseError(400, "Invalid filter JSON")
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self.filtering.check_valid_filter(filter_object)
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filter_collection = FilterCollection(self.hs, filter_object)
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else:
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try:
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filter_collection = await self.filtering.get_user_filter(
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user.localpart, filter_id
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)
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except StoreError as err:
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if err.code != 404:
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raise
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# fix up the description and errcode to be more useful
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raise SynapseError(400, "No such filter", errcode=Codes.INVALID_PARAM)
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sync_config = SyncConfig(
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user=user,
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filter_collection=filter_collection,
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is_guest=requester.is_guest,
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request_key=request_key,
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device_id=device_id,
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)
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since_token = None
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if since is not None:
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since_token = await StreamToken.from_string(self.store, since)
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# send any outstanding server notices to the user.
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await self._server_notices_sender.on_user_syncing(user.to_string())
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affect_presence = set_presence != PresenceState.OFFLINE
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context = await self.presence_handler.user_syncing(
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user.to_string(),
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affect_presence=affect_presence,
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presence_state=set_presence,
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)
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with context:
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sync_result = await self.sync_handler.wait_for_sync_for_user(
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requester,
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sync_config,
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since_token=since_token,
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timeout=timeout,
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full_state=full_state,
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)
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# the client may have disconnected by now; don't bother to serialize the
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# response if so.
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if request._disconnected:
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logger.info("Client has disconnected; not serializing response.")
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return 200, {}
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time_now = self.clock.time_msec()
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# We know that the the requester has an access token since appservices
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# cannot use sync.
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response_content = await self.encode_response(
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time_now, sync_result, requester.access_token_id, filter_collection
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)
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logger.debug("Event formatting complete")
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return 200, response_content
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@trace(opname="sync.encode_response")
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async def encode_response(
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self,
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time_now: int,
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sync_result: SyncResult,
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access_token_id: Optional[int],
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filter: FilterCollection,
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) -> JsonDict:
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logger.debug("Formatting events in sync response")
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if filter.event_format == "client":
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event_formatter = format_event_for_client_v2_without_room_id
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elif filter.event_format == "federation":
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event_formatter = format_event_raw
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else:
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raise Exception("Unknown event format %s" % (filter.event_format,))
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serialize_options = SerializeEventConfig(
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event_format=event_formatter,
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token_id=access_token_id,
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only_event_fields=filter.event_fields,
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)
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stripped_serialize_options = SerializeEventConfig(
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event_format=event_formatter,
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token_id=access_token_id,
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include_stripped_room_state=True,
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)
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joined = await self.encode_joined(
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sync_result.joined, time_now, serialize_options
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)
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invited = await self.encode_invited(
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sync_result.invited, time_now, stripped_serialize_options
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)
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knocked = await self.encode_knocked(
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sync_result.knocked, time_now, stripped_serialize_options
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)
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archived = await self.encode_archived(
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sync_result.archived, time_now, serialize_options
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)
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logger.debug("building sync response dict")
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response: JsonDict = defaultdict(dict)
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response["next_batch"] = await sync_result.next_batch.to_string(self.store)
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if sync_result.account_data:
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response["account_data"] = {"events": sync_result.account_data}
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if sync_result.presence:
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response["presence"] = SyncRestServlet.encode_presence(
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sync_result.presence, time_now
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)
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if sync_result.to_device:
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response["to_device"] = {"events": sync_result.to_device}
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if sync_result.device_lists.changed:
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response["device_lists"]["changed"] = list(sync_result.device_lists.changed)
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if sync_result.device_lists.left:
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response["device_lists"]["left"] = list(sync_result.device_lists.left)
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# We always include this because https://github.com/vector-im/element-android/issues/3725
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# The spec isn't terribly clear on when this can be omitted and how a client would tell
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# the difference between "no keys present" and "nothing changed" in terms of whole field
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# absent / individual key type entry absent
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# Corresponding synapse issue: https://github.com/matrix-org/synapse/issues/10456
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response["device_one_time_keys_count"] = sync_result.device_one_time_keys_count
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# https://github.com/matrix-org/matrix-doc/blob/54255851f642f84a4f1aaf7bc063eebe3d76752b/proposals/2732-olm-fallback-keys.md
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# states that this field should always be included, as long as the server supports the feature.
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response[
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"org.matrix.msc2732.device_unused_fallback_key_types"
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] = sync_result.device_unused_fallback_key_types
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response[
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"device_unused_fallback_key_types"
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] = sync_result.device_unused_fallback_key_types
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if joined:
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response["rooms"][Membership.JOIN] = joined
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if invited:
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response["rooms"][Membership.INVITE] = invited
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if knocked:
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response["rooms"][Membership.KNOCK] = knocked
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if archived:
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response["rooms"][Membership.LEAVE] = archived
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if sync_result.groups is not None:
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if sync_result.groups.join:
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response["groups"][Membership.JOIN] = sync_result.groups.join
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if sync_result.groups.invite:
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response["groups"][Membership.INVITE] = sync_result.groups.invite
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if sync_result.groups.leave:
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response["groups"][Membership.LEAVE] = sync_result.groups.leave
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return response
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@staticmethod
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def encode_presence(events: List[UserPresenceState], time_now: int) -> JsonDict:
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return {
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"events": [
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{
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"type": "m.presence",
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"sender": event.user_id,
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"content": format_user_presence_state(
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event, time_now, include_user_id=False
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),
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}
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for event in events
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]
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}
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@trace(opname="sync.encode_joined")
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async def encode_joined(
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self,
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rooms: List[JoinedSyncResult],
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time_now: int,
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serialize_options: SerializeEventConfig,
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) -> JsonDict:
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"""
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Encode the joined rooms in a sync result
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Args:
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rooms: list of sync results for rooms this user is joined to
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time_now: current time - used as a baseline for age calculations
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serialize_options: Event serializer options
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Returns:
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The joined rooms list, in our response format
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"""
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joined = {}
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for room in rooms:
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joined[room.room_id] = await self.encode_room(
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room, time_now, joined=True, serialize_options=serialize_options
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)
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return joined
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@trace(opname="sync.encode_invited")
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async def encode_invited(
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self,
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rooms: List[InvitedSyncResult],
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time_now: int,
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serialize_options: SerializeEventConfig,
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) -> JsonDict:
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"""
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Encode the invited rooms in a sync result
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Args:
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rooms: list of sync results for rooms this user is invited to
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time_now: current time - used as a baseline for age calculations
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serialize_options: Event serializer options
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Returns:
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The invited rooms list, in our response format
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"""
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invited = {}
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for room in rooms:
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invite = self._event_serializer.serialize_event(
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room.invite, time_now, config=serialize_options
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)
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unsigned = dict(invite.get("unsigned", {}))
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invite["unsigned"] = unsigned
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invited_state = list(unsigned.pop("invite_room_state", []))
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invited_state.append(invite)
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invited[room.room_id] = {"invite_state": {"events": invited_state}}
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return invited
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@trace(opname="sync.encode_knocked")
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async def encode_knocked(
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self,
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rooms: List[KnockedSyncResult],
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time_now: int,
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serialize_options: SerializeEventConfig,
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) -> Dict[str, Dict[str, Any]]:
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"""
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Encode the rooms we've knocked on in a sync result.
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Args:
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rooms: list of sync results for rooms this user is knocking on
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time_now: current time - used as a baseline for age calculations
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serialize_options: Event serializer options
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Returns:
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The list of rooms the user has knocked on, in our response format.
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"""
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knocked = {}
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for room in rooms:
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knock = self._event_serializer.serialize_event(
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room.knock, time_now, config=serialize_options
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)
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# Extract the `unsigned` key from the knock event.
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# This is where we (cheekily) store the knock state events
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unsigned = knock.setdefault("unsigned", {})
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# Duplicate the dictionary in order to avoid modifying the original
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unsigned = dict(unsigned)
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# Extract the stripped room state from the unsigned dict
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# This is for clients to get a little bit of information about
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# the room they've knocked on, without revealing any sensitive information
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knocked_state = list(unsigned.pop("knock_room_state", []))
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# Append the actual knock membership event itself as well. This provides
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# the client with:
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#
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# * A knock state event that they can use for easier internal tracking
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# * The rough timestamp of when the knock occurred contained within the event
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knocked_state.append(knock)
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# Build the `knock_state` dictionary, which will contain the state of the
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# room that the client has knocked on
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knocked[room.room_id] = {"knock_state": {"events": knocked_state}}
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return knocked
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@trace(opname="sync.encode_archived")
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async def encode_archived(
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self,
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rooms: List[ArchivedSyncResult],
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time_now: int,
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serialize_options: SerializeEventConfig,
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) -> JsonDict:
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"""
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Encode the archived rooms in a sync result
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Args:
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rooms: list of sync results for rooms this user is joined to
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time_now: current time - used as a baseline for age calculations
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serialize_options: Event serializer options
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Returns:
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The archived rooms list, in our response format
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"""
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joined = {}
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for room in rooms:
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joined[room.room_id] = await self.encode_room(
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room, time_now, joined=False, serialize_options=serialize_options
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)
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return joined
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async def encode_room(
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self,
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room: Union[JoinedSyncResult, ArchivedSyncResult],
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time_now: int,
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joined: bool,
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serialize_options: SerializeEventConfig,
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) -> JsonDict:
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"""
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Args:
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room: sync result for a single room
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time_now: current time - used as a baseline for age calculations
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token_id: ID of the user's auth token - used for namespacing
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of transaction IDs
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joined: True if the user is joined to this room - will mean
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we handle ephemeral events
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only_fields: Optional. The list of event fields to include.
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event_formatter: function to convert from federation format
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to client format
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Returns:
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The room, encoded in our response format
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"""
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state_dict = room.state
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timeline_events = room.timeline.events
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state_events = state_dict.values()
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for event in itertools.chain(state_events, timeline_events):
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# We've had bug reports that events were coming down under the
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# wrong room.
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if event.room_id != room.room_id:
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logger.warning(
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"Event %r is under room %r instead of %r",
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event.event_id,
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room.room_id,
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event.room_id,
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)
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serialized_state = self._event_serializer.serialize_events(
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state_events, time_now, config=serialize_options
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)
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serialized_timeline = self._event_serializer.serialize_events(
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timeline_events,
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time_now,
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config=serialize_options,
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bundle_aggregations=room.timeline.bundled_aggregations,
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)
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account_data = room.account_data
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result: JsonDict = {
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"timeline": {
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|
"events": serialized_timeline,
|
|
"prev_batch": await room.timeline.prev_batch.to_string(self.store),
|
|
"limited": room.timeline.limited,
|
|
},
|
|
"state": {"events": serialized_state},
|
|
"account_data": {"events": account_data},
|
|
}
|
|
|
|
if joined:
|
|
assert isinstance(room, JoinedSyncResult)
|
|
ephemeral_events = room.ephemeral
|
|
result["ephemeral"] = {"events": ephemeral_events}
|
|
result["unread_notifications"] = room.unread_notifications
|
|
result["summary"] = room.summary
|
|
if self._msc2654_enabled:
|
|
result["org.matrix.msc2654.unread_count"] = room.unread_count
|
|
|
|
return result
|
|
|
|
|
|
def register_servlets(hs: "HomeServer", http_server: HttpServer) -> None:
|
|
SyncRestServlet(hs).register(http_server)
|