Rest::widgetOperatorGet

static function widgetOperatorGet($params, $n, CRestServer $server)
{
	$params = array_change_key_case($params, CASE_UPPER);

	$type = CPullChannel::TYPE_PRIVATE;
	if ($params['APPLICATION'] == 'Y')
	{
		$clientId = $server->getClientId();
		if (!$clientId)
		{
			throw new RestException('Get application public channel available only for application authorization.', 'WRONG_AUTH_TYPE', CRestServer::STATUS_WRONG_REQUEST);
		}
		$type = $clientId;
	}

	$users = [];
	if (is_string($params['USERS']))
	{
		$params['USERS'] = CUtil::JsObjectToPhp($params['USERS']);
	}
	if (is_array($params['USERS']))
	{
		foreach ($params['USERS'] as $userId)
		{
			$userId = (int)$userId;
			if ($userId > 0)
			{
				$users[$userId] = $userId;
			}
		}
	}

	if (empty($users))
	{
		throw new RestException('A wrong format for the USERS field is passed', 'INVALID_FORMAT', CRestServer::STATUS_WRONG_REQUEST);
	}

	global $USER;
	$operators = ModelSessionTable::getList([
		'select' => ['OPERATOR_ID'],
		'filter' => [
			'=USER_ID' => $USER->GetID(),
			'=CLOSED' => 'N'
		]])->fetchAll();

	$operators = array_map(function($operator){
		return $operator['OPERATOR_ID'];
	}, $operators);

	foreach ($users as $user)
	{
		if (!in_array((string)$user, $operators, true))
		{
			//TODO: Exception details
			throw new RestException('Wrong operator ID');
		}
	}

	$configParams = [];
	$configParams['TYPE'] = $type;
	$configParams['USERS'] = $users;
	$configParams['JSON'] = true;

	$config = BitrixPullChannel::getPublicIds($configParams);
	if (!$config)
	{
		throw new RestException('Push & Pull server is not configured', 'SERVER_ERROR', CRestServer::STATUS_INTERNAL);
	}

	return $config;
}