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

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
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13 changed files with 674 additions and 31 deletions

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@ -97,6 +97,7 @@ from synapse.handlers.room import (
RoomContextHandler,
RoomCreationHandler,
RoomShutdownHandler,
TimestampLookupHandler,
)
from synapse.handlers.room_batch import RoomBatchHandler
from synapse.handlers.room_list import RoomListHandler
@ -728,6 +729,10 @@ class HomeServer(metaclass=abc.ABCMeta):
def get_room_context_handler(self) -> RoomContextHandler:
return RoomContextHandler(self)
@cache_in_self
def get_timestamp_lookup_handler(self) -> TimestampLookupHandler:
return TimestampLookupHandler(self)
@cache_in_self
def get_registration_handler(self) -> RegistrationHandler:
return RegistrationHandler(self)