Matrix-Mirrors/anonymousland-synapse
1
0
Fork 0
mirror of https://git.anonymousland.org/anonymousland/synapse.git synced 2025-08-06 07:34:22 -04:00
Code Issues Projects Releases Packages Wiki Activity

Add MSC3030 experimental client and federation API endpoints to get the closest event to a given timestamp (#9445)

Browse source 
MSC3030: https://github.com/matrix-org/matrix-doc/pull/3030

Client API endpoint. This will also go and fetch from the federation API endpoint if unable to find an event locally or we found an extremity with possibly a closer event we don't know about.
```
GET /_matrix/client/unstable/org.matrix.msc3030/rooms/<roomID>/timestamp_to_event?ts=<timestamp>&dir=<direction>
{
    "event_id": ...
    "origin_server_ts": ...
}
```

Federation API endpoint:
```
GET /_matrix/federation/unstable/org.matrix.msc3030/timestamp_to_event/<roomID>?ts=<timestamp>&dir=<direction>
{
    "event_id": ...
    "origin_server_ts": ...
}
```

Co-authored-by: Erik Johnston <erik@matrix.org>
This commit is contained in:
Eric Eastwood 2021-12-02 01:02:20 -06:00 • committed by GitHub
parent 84dc50e160
commit a6f1a3abec
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
13 changed files with 674 additions and 31 deletions
Download patch file Download diff file Expand all files Collapse all files

43
synapse/federation/federation_server.py
View file

@ -110,6 +110,7 @@ class FederationServer(FederationBase):
super().__init__(hs)
self.handler = hs.get_federation_handler()
self.storage = hs.get_storage()
self._federation_event_handler = hs.get_federation_event_handler()
self.state = hs.get_state_handler()
self._event_auth_handler = hs.get_event_auth_handler()
@ -200,6 +201,48 @@ class FederationServer(FederationBase):
return 200, res
async def on_timestamp_to_event_request(
self, origin: str, room_id: str, timestamp: int, direction: str
) -> Tuple[int, Dict[str, Any]]:
"""When we receive a federated `/timestamp_to_event` request,
handle all of the logic for validating and fetching the event.
Args:
origin: The server we received the event from
room_id: Room to fetch the event from
timestamp: The point in time (inclusive) we should navigate from in
the given direction to find the closest event.
direction: ["f"|"b"] to indicate whether we should navigate forward
or backward from the given timestamp to find the closest event.
Returns:
Tuple indicating the response status code and dictionary response
body including `event_id`.
"""
with (await self._server_linearizer.queue((origin, room_id))):
origin_host, _ = parse_server_name(origin)
await self.check_server_matches_acl(origin_host, room_id)
# We only try to fetch data from the local database
event_id = await self.store.get_event_id_for_timestamp(
room_id, timestamp, direction
)
if event_id:
event = await self.store.get_event(
event_id, allow_none=False, allow_rejected=False
)
return 200, {
"event_id": event_id,
"origin_server_ts": event.origin_server_ts,
}
raise SynapseError(
404,
"Unable to find event from %s in direction %s" % (timestamp, direction),
errcode=Codes.NOT_FOUND,
)
async def on_incoming_transaction(
self,
origin: str,