src/Controllers/AccountController.php


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<?php

namespace App\Controllers;

use App\Errors\UnauthorizedError;
use App\Models\Device;
use App\Models\User;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\HttpFoundation\JsonResponse;

class AccountController
{
  /**
   * GET /_matrix/client/v3/account/whoami
   *
   * @see https://spec.matrix.org/v1.15/client-server-api/#get_matrixclientv3accountwhoami
   */
  public function whoami(Request $request): Response
  {
    $accessToken = str_replace("Bearer ", "", $request->headers->get("authorization") ?: "");
    $user = User::fetchWithAccessToken($accessToken);

    if (empty($user)) {
      throw new UnauthorizedError();
    }

    $device = Device::fetch(userId: $user->getId());

    return new JsonResponse([
      "device_id" => $device->getId(),
      "user_id" => $user->getId(),
    ]);
  }
}