niko
40 lines
2.0 KiB
C#
40 lines
2.0 KiB
C#
using Microsoft.AspNetCore.Mvc;
|
|
using Campus_live_rewrite.api.dbs;
|
|
|
|
namespace Campus_live_rewrite.Controllers
|
|
{
|
|
// ---------------------------------------------------------------------------------
|
|
// Room lookup for the Tachyon voice server.
|
|
//
|
|
// Tachyon has NO room id on its wire - the client's voice ConnectionData carries only
|
|
// the AccountId (plaintext) plus opaque RSA blobs. So Tachyon resolves which room a
|
|
// speaker is in by asking us: GET /tachyon?id=<AccountId>, expecting a BARE numeric
|
|
// roomInstanceId in text/plain (see tachyon-server-master/src/room_lookup.cpp - it
|
|
// strtoull's the body and treats 0 / non-200 / non-numeric as "isolate this client",
|
|
// i.e. they hear no one). It scopes its Dissonance relay per returned room id.
|
|
//
|
|
// Set Tachyon's config room_url = https://<host>/tachyon (it appends ?id=<n>).
|
|
//
|
|
// Unauthenticated on purpose: room_lookup.cpp issues a plain GET with no token, exactly
|
|
// as the RecFlare reference does. The only thing exposed is which room-instance a given
|
|
// account is in, keyed on a numeric id we already hand out publicly; the id is validated
|
|
// as an integer before use. Returns "0" (nowhere) for anything we can't positively place,
|
|
// which fails safe: Tachyon isolates the client rather than leaking cross-room voice.
|
|
// ---------------------------------------------------------------------------------
|
|
[ApiController]
|
|
public class TachyonController : ControllerBase
|
|
{
|
|
[HttpGet("/tachyon")]
|
|
public IActionResult ResolveRoom([FromQuery] string? id)
|
|
{
|
|
if (string.IsNullOrWhiteSpace(id) || !ulong.TryParse(id, out var accountId))
|
|
return Content("0", "text/plain");
|
|
|
|
var (online, room) = HeartbeatDB.PeekPresence(accountId);
|
|
long instance = (online && room != null) ? room.roomInstanceId : 0;
|
|
|
|
return Content(instance.ToString(), "text/plain");
|
|
}
|
|
}
|
|
}
|