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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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This commit is contained in:
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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43
src/api/client_server/membership.rs
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@ -981,6 +981,8 @@ async fn join_room_by_id_helper(
.as_str()
})
.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?
join_event_stub.insert(
"origin".to_owned(),
@ -1027,7 +1029,7 @@ async fn join_room_by_id_helper(
ruma::signatures::reference_hash(&join_event_stub, &room_version_id)
.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");
// Add event_id back
@ -1052,46 +1054,35 @@ async fn join_room_by_id_helper(
)
.await?;
if let Some(signed_raw) = send_join_response.room_state.event {
let (signed_event_id, signed_value) =
match 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.",
));
}
};
let pdu = if let Some(signed_raw) = send_join_response.room_state.event {
let (signed_event_id, signed_pdu) =
gen_event_id_canonical_json(&signed_raw, &room_version_id)?;
if signed_event_id != event_id {
return Err(Error::BadRequest(
ErrorKind::InvalidParam,
return Err(Error::BadServerResponse(
"Server sent event with wrong event id",
));
}
signed_pdu
} else if restricted_join {
return Err(Error::BadServerResponse(
"No signed event was returned, despite just performing a restricted join",
));
} else {
join_event
};
drop(state_lock);
let pub_key_map = RwLock::new(BTreeMap::new());
services()
.rooms
.event_handler
.handle_incoming_pdu(
&remote_server,
&signed_event_id,
room_id,
signed_value,
true,
&pub_key_map,
)
.handle_incoming_pdu(&remote_server, &event_id, room_id, pdu, true, &pub_key_map)
.await?;
} else {
return Err(error);
}
} else {
return Err(error);
}
}
Ok(join_room_by_id::v3::Response::new(room_id.to_owned()))