BizProcDocument::getAllowableUserGroups

static function getAllowableUserGroups($documentType)
{
	$storageId = self::getStorageIdByType($documentType);
	if(!$storageId)
	{
		throw new CBPArgumentNullException('documentType');
	}
	/** @var Storage $storage */
	$storage = Storage::loadById($storageId, array('ROOT_OBJECT'));
	if(!$storage)
	{
		throw new CBPArgumentNullException('documentType');
	}

	if($storage->getProxyType() instanceof ProxyTypeGroup && Loader::includeModule("socialnetwork"))
	{
		$resultUserGroups = array();
		$resultUserGroups["author"] = Loc::getMessage("DISK_USER_GROUPS_AUTHOR");
		$resultUserGroups[SONET_ROLES_OWNER] = Loc::getMessage("DISK_USER_GROUPS_OWNER");
		$resultUserGroups[SONET_ROLES_MODERATOR] = Loc::getMessage("DISK_USER_GROUPS_MODS");
		$resultUserGroups[SONET_ROLES_USER] = Loc::getMessage("DISK_USER_GROUPS_MEMBERS");

		return $resultUserGroups;
	}
	else
	{
		$resultUserGroups = array('Author' => Loc::getMessage("DISK_USER_GROUPS_AUTHOR"));
		$groupIds = array(1);

		foreach(Driver::getInstance()->getRightsManager()->getSpecificRights($storage->getRootObject()) as $right)
		{
			if(preg_match("/^G(\d+)$/", $right['ACCESS_CODE'], $match))
			{
				$groupIds[] = $match[1];
			}
		}
		unset($right);

		//Crutch for Bitrix24 context (user group management is not supported)
		if(ModuleManager::isModuleInstalled('bitrix24'))
		{
			$siteId = CSite::getDefSite();
			$employeeGroup = CGroup::getList('', '', array(
				'STRING_ID' => 'EMPLOYEES_' . $siteId,
				'STRING_ID_EXACT_MATCH' => 'Y'
			))->fetch();
			if($employeeGroup)
			{
				$employeeGroupId = (int)$employeeGroup['ID'];
				if(!in_array($employeeGroupId, $groupIds, true))
				{
					$groupIds[] = $employeeGroupId;
				}
			}
		}

		$dbGroupsList = CGroup::getListEx(array('NAME' => 'ASC'), array('ID' => $groupIds));
		while($group = $dbGroupsList->fetch())
		{
			$resultUserGroups[$group['ID']] = $group['NAME'];
		}
		return $resultUserGroups;
	}
}