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fix(membership): fallback to locally signed event if the join wasn't a restricted one on send_join response

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Matthias Ahouansou 2024-05-27 11:47:05 +01:00
parent 47aadcea1d
commit ec8dfc283c
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1 changed files with 22 additions and 31 deletions
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53
src/api/client_server/membership.rs
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@ -981,6 +981,8 @@ async fn join_room_by_id_helper(
.as_str() .as_str()
}) })
.and_then(|s| OwnedUserId::try_from(s.unwrap_or_default()).ok()); .and_then(|s| OwnedUserId::try_from(s.unwrap_or_default()).ok());
let restricted_join = join_authorized_via_users_server.is_some();
// TODO: Is origin needed? // TODO: Is origin needed?
join_event_stub.insert( join_event_stub.insert(
"origin".to_owned(), "origin".to_owned(),
@ -1027,7 +1029,7 @@ async fn join_room_by_id_helper(
ruma::signatures::reference_hash(&join_event_stub, &room_version_id) ruma::signatures::reference_hash(&join_event_stub, &room_version_id)
.expect("ruma can calculate reference hashes") .expect("ruma can calculate reference hashes")
); );
let event_id = <&EventId>::try_from(event_id.as_str()) let event_id = OwnedEventId::try_from(event_id)
.expect("ruma's reference hashes are valid event ids"); .expect("ruma's reference hashes are valid event ids");
// Add event_id back // Add event_id back
@ -1052,43 +1054,32 @@ async fn join_room_by_id_helper(
) )
.await?; .await?;
if let Some(signed_raw) = send_join_response.room_state.event { let pdu = if let Some(signed_raw) = send_join_response.room_state.event {
let (signed_event_id, signed_value) = let (signed_event_id, signed_pdu) =
match gen_event_id_canonical_json(&signed_raw, &room_version_id) { gen_event_id_canonical_json(&signed_raw, &room_version_id)?;
Ok(t) => t,
Err(_) => {
// Event could not be converted to canonical json
return Err(Error::BadRequest(
ErrorKind::InvalidParam,
"Could not convert event to canonical json.",
));
}
};
if signed_event_id != event_id { if signed_event_id != event_id {
return Err(Error::BadRequest( return Err(Error::BadServerResponse(
ErrorKind::InvalidParam,
"Server sent event with wrong event id", "Server sent event with wrong event id",
)); ));
} }
drop(state_lock); signed_pdu
let pub_key_map = RwLock::new(BTreeMap::new()); } else if restricted_join {
services() return Err(Error::BadServerResponse(
.rooms "No signed event was returned, despite just performing a restricted join",
.event_handler ));
.handle_incoming_pdu(
&remote_server,
&signed_event_id,
room_id,
signed_value,
true,
&pub_key_map,
)
.await?;
} else { } else {
return Err(error); join_event
} };
drop(state_lock);
let pub_key_map = RwLock::new(BTreeMap::new());
services()
.rooms
.event_handler
.handle_incoming_pdu(&remote_server, &event_id, room_id, pdu, true, &pub_key_map)
.await?;
} else { } else {
return Err(error); return Err(error);
} }